US20070084024A1 - Spring fastener with highly improved lever/angle pulling force - Google Patents
Spring fastener with highly improved lever/angle pulling force Download PDFInfo
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- US20070084024A1 US20070084024A1 US11/564,840 US56484006A US2007084024A1 US 20070084024 A1 US20070084024 A1 US 20070084024A1 US 56484006 A US56484006 A US 56484006A US 2007084024 A1 US2007084024 A1 US 2007084024A1
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- spring
- fastener
- engagement
- spring fastener
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- 230000015572 biosynthetic process Effects 0.000 description 9
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
- F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
- F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
- F16B5/065—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship the plates being one on top of the other and distanced from each other, e.g. by using protrusions to keep contact and distance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/06—Releasable fastening devices with snap-action
- F16B21/07—Releasable fastening devices with snap-action in which the socket has a resilient part
- F16B21/073—Releasable fastening devices with snap-action in which the socket has a resilient part the socket having a resilient part on its inside
- F16B21/075—Releasable fastening devices with snap-action in which the socket has a resilient part the socket having a resilient part on its inside the socket having resilient parts on its inside and outside
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
- F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
- F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
- F16B5/0657—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship at least one of the plates providing a raised structure, e.g. of the doghouse type, for connection with the clamps or clips of the other plate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/30—Trim molding fastener
- Y10T24/304—Resilient metal type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/30—Trim molding fastener
- Y10T24/304—Resilient metal type
- Y10T24/307—Sheet metal formed
Definitions
- This application relates to spring fasteners. This application also relates to an assembly as connected to each other through the fastener, as well as vehicles comprising such assemblies.
- a number of fasteners have been used in the past for securing one object on another object, as for example, securing an article such as for example a plastic sheet on a metal or other rigid plastic sheet.
- these fasteners have a rather low ratio of insertion force to removal force. In other words, they require considerable force to be inserted into a slot in order to provide adequate removal resistance in order to be removed from the slot. This is ergonomically inferior performance, and the operators may suffer miscellaneous ailments, while productivity is also considerably undermined.
- the fasteners of the present state in the art suffer from rather inferior Lever/Angle Pulling force.
- Lever/Angle pulling force is defined as the force required to separate one part from another part connected with a fastener by pulling said parts apart, not straight away form each other, but sideways from each other, as will be described in more detail herein below.
- the fasteners have a considerably higher Lever/Angle pulling force than the fasteners of the present state in the art.
- U.S. Pat. No. 5,919,019 provides fasteners which can only be permanently installed into a slot; they can only be inserted but not extracted without damage to parts of the fastener.
- the major engagement is performed by spring strips, while frictional portions of the fastener pass through the slot with at most slight compression, and immediately after the insertion of the fastener they are located in slightly spaced or barely contacting relation with the edges of the slot. They are only activated for engagement after the insertion of a bolt into a hole at the base plate.
- the profound effect of the increased removal to insertion ratio (explained in detail herein below) is not recognized, mentioned, or implied.
- the distance of the frictional portions away from the edges of the slot by Fisher increases the insertion force.
- U.S. Pat. No. 6,141,837 (Wisniewski) describes a spring fastener comprising bulbous and outwardly projecting portions, which assist in preventing withdrawal of the clip and associated molding from an aperture of a vehicle frame.
- bulbous and outwardly projecting portions which assist in preventing withdrawal of the clip and associated molding from an aperture of a vehicle frame.
- “bulbous projections” are necessarily voluminous, take most of the space between the “reverse bents”, and unless they are manufactured within tight tolerances with regard to the thickness of the frame, the “base plates” do not sit on the frame (see also the Figures), rendering the structure unstable.
- Klump, Jr. are directed to plastic or metal fasteners which are designed to be just inserted into the slot of a panel, but not extracted without damage to the fastener (if such extraction would be attempted from the front side; the side from which the fastener is inserted into the panel, since the back part of the panel is not reachable in the cases, wherein such types of fasteners are used).
- a spring fastener engages the rib of a first part, such as a plastic panel for example.
- the spring fastener is also suitable to be engaged reversibly in a slot of second part, such as a metal sheet or the frame of a car for example.
- a slot of second part such as a metal sheet or the frame of a car for example.
- the spring fasteners have a Lever/Angle pulling force, which is considerably higher than that characterizing spring fasteners of the present state in the art.
- an increase in Lever/Angle pulling force is attained by forming a side-cut section, especially at least partially bent outwardly, disposed in the spring fastener, as will described in more detail herein below.
- Outwardly means away from the fastener.
- a spring fastener comprises a first side and a second side opposite the first side, the first side connected to the second side thereby forming a U-shaped structure.
- a cavity is formed between the first side and the second side.
- the fastener further comprises a bottom portion wherein the first side and the second side are connected, and a top portion.
- the first side comprises a first engagement spring, the first engagement spring connected to the first side in the vicinity of the bottom portion.
- the second side comprises a second engagement spring, the second engagement spring connected to the second side in the vicinity of the bottom portion. At least one of: the first engagement spring and/or the second engagement spring comprises side-cuts being across each other.
- each of the first and second engagement springs comprising a peak, a free end in the vicinity of the top portion, and an engagement region between the peak and the front end.
- at least one engagement spring further having a side-cut section or notch, preferably in the vicinity the respective peak, the side-cut section or notch oriented substantially parallel to the peak.
- each spring has two side-cut sections, one opposite to the other.
- the side-cut sections or notches have an upper edge and a lower edge. According to one embodiment, that at least one of the lower edges, or all lower edges are at least partially bent outwardly.
- a spring fastener comprises a first side and a second side opposite the first side, the first side connected to the second side thereby forming a U-shaped structure.
- a cavity is formed between the first side and the second side.
- the fastener further comprises a bottom portion wherein the first side and the second side are connected, and a top portion.
- the first side comprises a first engagement spring, the first engagement spring connected to the first side in the vicinity of the bottom portion.
- the second side comprises a second engagement spring, the second engagement spring connected to the second side in the vicinity of the bottom portion. At least one of: the first engagement spring and/or the second engagement spring comprises side-cuts being across each other.
- each of the first and second engagement springs comprising a peak, a free end in the vicinity of the top portion, and an engagement region between the peak and the front end.
- at least one engagement spring further having a side-cut section or notch, preferably in the vicinity the respective peak, the side-cut section or notch oriented substantially parallel to the peak.
- each spring has two side-cut sections, one opposite to the other;
- a first part comprising a rib inserted into the cavity of the spring fastener and engaged to the first and second barbs;
- a second part comprising a slot, the slot having a width and edges, the fastener being disposed in the slot in a manner that the edges of said slot are engaged to the engagement regions of the spring fastener.
- a vehicle comprises an assembly, the assembly comprising vehicle comprising an assembly, the assembly comprising:
- a spring fastener comprises a first side and a second side opposite the first side, the first side connected to the second side thereby forming a U-shaped structure.
- a cavity is formed between the first side and the second side.
- the fastener further comprises a bottom portion wherein the first side and the second side are connected, and a top portion.
- the first side comprises a first engagement spring, the first engagement spring connected to the first side in the vicinity of the bottom portion.
- the second side comprises a second engagement spring, the second engagement spring connected to the second side in the vicinity of the bottom portion. At least one of: the first engagement spring and/or the second engagement spring comprises side-cuts being across each other.
- each of the first and second engagement springs comprising a peak, a free end in the vicinity of the top portion, and an engagement region between the peak and the front end.
- at least one engagement spring further having a side-cut section or notch, preferably in the vicinity the respective peak, the side-cut section or notch oriented substantially parallel to the peak.
- each spring has two side-cut sections, one opposite to the other;
- a first part comprising a rib inserted into the cavity of the spring fastener and engaged to the first and second barbs;
- a second part comprising a slot, the slot having a width and edges, the fastener being disposed in the slot in a manner that the edges of said slot are engaged to the engagement regions of the spring fastener.
- the fastener comprises hindrance portion within the engagement region, and the side-cut section is disposed within the engagement region.
- the side-cut section has a triangular shape.
- the spring fastener may further comprise a recess within the engagement region, in the vicinity of the top end.
- the hindrance portion may have any suitable structure, which hinders to a desired degree the removal of the spring fastener from the slot described above.
- the said hindrance portion comprises one structure selected from ripple, side rib, upward solid bent extension parallel to the peak and the optional recess, knurled region, bent teeth, each having a depth, a bump or bulbous formation, and a combination thereof.
- the ripple may have a back side with a curvature of a gradually decreasing slope.
- the gradually decreasing slope has the shape of an arc in the range of 50-70 degrees with a radius in the range of 0.03-0.05 mm.
- the spring fastener further comprises first barbs and second barbs being cut portions of the respective first and second side of the spring fastener, originating from the vicinity of the top portion of said spring fastener and directed toward the bottom portion the spring fastener, the first barbs and the second barbs comprising respective first back sections and first front sections, the first sections being bent portions of the first back sections, and second back sections and second front sections, the second front sections being bent portions of the second back sections.
- the barbs are selected from a group consisting essentially of:
- first barbs being outer barbs and second barbs being inner barbs
- first barbs being outside outer barbs and second barbs being inside outer barbs
- first barbs being inner barbs and second barbs being inner barbs.
- the barbs which are cut from their respective side are flexible, and bent in the vicinity of their respective front end as described for example in U.S. Pat. No. 6,279,207 B1, which is incorporated herein by reference, and more particularly in FIG. 1A of said patent, with an angle of bent in the range of 5-25 degrees.
- the barbs are considered to be flexible if they do not cause the width W 3 ( FIG. 1B ) to increase more than 30%, preferably 20%, and more preferably 10%, when the rib 46 is inserted into the cavity 19 of the fastener 10 ( FIG. 4A ), and provided that the first object 46 is adequately hard to hinder the barbs 36 from substantially digging into it.
- the barbs may have variable width along their length, or they may have substantially the same width along their length. Further, the front points of the barbs may be toothed.
- bent barbs are also described in U.S. Pat. Nos. 6,279,207 B1 and 6,691,380 B2, both of which are incorporated herein by reference.
- the spring fastener may further comprise a molded elastic body at least under the top portion of said spring fastener for sealing purposes.
- a molded elastic body at least under the top portion of said spring fastener for sealing purposes.
- the spring fastener may further comprise:
- an elastic body comprised of at least a gasket, the gasket extending away from the cavity in the vicinity of the top portion of the fastener and enclosing at least partially the cavity;
- a casing surrounding at least partially the spring fastener under the top portion, except at least the engagement section of each engagement spring, the casing also at least partially surrounding the cavity and such portion of the elastic body which at least partially encloses the cavity;
- the casing has lower ultimate elongation, higher Shore hardness, and higher shear strength than the elastic body.
- the casing is substantially non-elastic.
- fasteners described above and their equivalents may be used in any assembly in which the first part and/or the second part are connected with the fastener, as well as in any vehicle comprising such an assembly or such a fastener or its equivalents
- FIG. 1 illustrates a perspective view of a spring fastener according to an embodiment, wherein the engagement regions of the first and second springs have side-cut sections or notches in the vicinity of the bent.
- FIG. 1A 1 illustrates a perspective view of a spring fastener according to another embodiment, wherein the hindrance portion comprises a single-sided ripple and bent barbs, and the engagement regions of the first and second springs have side-cut sections or notches in the vicinity of the bent.
- FIG. 1B shows a side view of the spring fastener of FIG. 1A .
- FIG. 1C illustrates a perspective view of a spring fastener according to another embodiment, wherein the lower edges of the side-cut sections or notches are at least partially bent outwardly.
- FIG. 2 illustrates a perspective view of a spring fastener according to another embodiment, wherein the hindrance portion comprises one two-sided ripple and bent barbs, and the engagement regions of the first and second springs have side-cut sections or notches in the vicinity of the bent.
- FIG. 3A illustrates side view of an engagement spring, wherein the hindrance portion comprises a single-sided ripple, and the engagement regions have side-cut sections or notches in the vicinity of the bent.
- FIG. 3B illustrates a side view of an engagement spring, wherein the hindrance portion comprises one two-sided ripple, and the engagement regions have side-cut sections or notches in the vicinity of the bent.
- FIG. 3C illustrates a side view of an engagement spring, wherein the hindrance portion comprises two two-sided ripples, and the engagement regions have side-cut sections or notches in the vicinity of the bent.
- FIG. 3D illustrates a side view slice of an engagement spring, wherein the hindrance portion comprises three two-sided ripples, and the engagement regions have side-cut sections or notches in the vicinity of the bent.
- FIG. 4 illustrates two parts, which can be connected with the fastener according to one embodiment.
- FIG. 4A illustrates the side view of the fastener of FIG. 1A and a cross sectional slice of the rib of a first part, such as a panel or an automotive pillar, for example, inserted into the cavity of the fastener.
- FIG. 4B illustrates the same elements shown in FIG. 4A after insertion of the fastener into the slot of a second part, such as the frame of an automobile for example.
- FIG. 4C illustrates a partial cross section of the second part of FIG. 4B and the edges of the slot in relation with the engagement regions of the engagement springs of the fastener.
- FIG. 5 illustrates a detailed diagram of a ripple in the hindrance portion according to one embodiment.
- FIG. 5A illustrates a detailed diagram of a single-sided ripple having a back side in the form of a curvature in the hindrance portion according to one embodiment.
- FIG. 6 illustrates a stamped fastener before final formation according to another embodiment, wherein the fastener comprises outer and inner barbs, as well as relief portions in the vicinity of the bottom of the fastener.
- FIG. 6A illustrates a side view of the fastener of FIG. 6 after final formation.
- FIG. 7 illustrates a stamped fastener before final formation according to another embodiment, wherein the fastener comprises outside outer barbs on the first side and inside outer barbs on the second side.
- FIG. 8 illustrates a stamped fastener before final formation according to another embodiment, wherein the fastener comprises only inner barbs.
- FIG. 9 illustrates a stamped fastener before final formation according to another embodiment, wherein the fastener comprises upper and lower outer and inner barbs.
- FIG. 10 illustrates a stamped fastener before final formation according to another embodiment, wherein the fastener comprises two engagement springs per side of the fastener, and only one upper and one lower barb per side.
- FIG. 11 illustrates a stamped fastener before final formation according to another embodiment, wherein the barbs have uniform width along their length.
- FIG. 12 illustrates a stamped fastener before final formation according to another embodiment, wherein the barbs have uniform width along their length, and they are toothed at their front ends.
- FIG. 13 illustrates a cross-sectional slice of the middle portion of a spring fastener, according to another embodiment, wherein a molded elastic body 54 is disposed at least under the top portion of said spring fastener.
- FIG. 14 is a perspective view of a fastener, according to still another embodiment, wherein the lower portion of the fastener is covered by a casing, while an elastic body is disposed in the vicinity of the top portion and encloses the cavity, at least partially.
- a spring fastener engages the rib of a first part, such as a plastic panel for example, like a pillar for example, may be engaged, and they are also suitable to be engaged reversibly in a slot of second part, such as a metal sheet for example, like the frame of a car for example.
- a spring fastener 10 comprising a first side 12 and a second side 14 opposite the first side 12 .
- the first side 12 is connected to the second side 14 forming a U-shaped structure which has a cavity 19 between the first side 12 and the second side 14 .
- the fastener 10 also has a bottom portion 16 , wherein the first side 12 and the second side 14 are connected. It further has a top portion 18 a and 18 b (collectively 18 ).
- numerals referring to the first side 12 contain the letter “a”, while numerals referring the second side 14 contain the letter “b”.
- the same numerals without the letters “a” or “b” refer collectively to the respective elements of both sides.
- the first side 12 comprises a first engagement spring 20 a , which is connected to the first side 12 in the vicinity of the bottom portion 16 .
- the second side 14 comprises a second engagement spring 20 b , which is connected to the second side 14 , also in the vicinity of the bottom portion.
- Each of the first and second engagement springs 20 a and 20 b may preferably, but not necessarily, have a first and second recess, 24 a and 24 b , respectively, as shown in FIGS. 1A and 1B , and a first and second free end, 22 a and 22 b , respectively, in the vicinity of the top portion 18 ( 18 a and 18 b , respectively).
- Each spring also comprises a first and a second peak, 26 a and 26 b , respectively, and a first and second engagement region, 28 a and 28 b , respectively.
- each of the side-cut sections or notches 8 has an upper edge 7 ( 7 a and 7 b ), and a lower edge 9 ( 9 a and 9 b ).
- the lower edges 9 ( 9 a and 9 b ) are at least partially bent outwardly, as better illustrated in FIG. 1C .
- the lever/angle pulling force is defined as the force required to separate one part from another part connected with a fastener by pulling said parts apart, not straight away form each other, but sideways from each other.
- the engagement regions 28 further comprise a first and second hindrance portion, 29 a and 29 b , respectively, between the bents 26 and the front ends 22 .
- the hindrance portions provide increased removal force, when the fastener 10 is pulled by a rib or extension 46 ( FIG. 4B ) of a first part 44 ( FIG. 4 ) engaged to the first and second barbs, 36 a and 36 b , respectively, after the fastener 10 has been inserted into a slot 50 of a second part 48 ( FIG. 4 ), the slot 50 having a slot width W 2 ( FIGS. 4 and 4 C) and edges 51 ( FIG. 4C ) on which edges the engagement regions 28 a and 28 b are engaged.
- the removal force is measured by pulling rib 46 of the first part 44 straight away from the second part 48 in the vicinity of point F 1 .
- the increased removal force is due to the hindrance portions 29 a and 29 b ( FIG. 4C ), which in this particular case comprise single ripples with only back sides 34 , as it will be explained at a later point in more detail.
- the engagement portions 28 a and 28 b and the hindrance regions 29 a and 29 b are such that the fastener 10 can be extracted from the slot 50 when pulled by the rib 46 without damage to said fastener 10 , and with a higher force than a force required in the absence of the hindrance portions 29 a and 29 b.
- the lever/angle pulling force is measured by pulling the first part 44 apart from the second part 48 , not straight away, but sideways from each other, that is for example by pulling the first part 44 from a point F 2 away from the rib 46 , such as the edge 45 for example of the first part 44 , such as an automotive pillar for example.
- the exact position of point F 2 may be different, as well as the required increase in lever/angle force by the use of the side-cut sections.
- the first side 12 also comprises first barbs 36 a , which in the case shown in FIGS. 1A and 1B are outer barbs, since they are disposed in an outer portion of the first side 12 .
- the barbs 36 a have first front ends 38 a .
- the first barbs 36 a are bent inwardly in the vicinity of the front ends 38 a , according to one embodiment.
- the second side 14 comprises second barbs 36 b , which in the case of FIGS. 1A and 1B are inner barbs, since they are disposed in an inner portion of the second side 14 .
- the second barbs have second front ends 38 b .
- the second barbs 36 b are also bent inwardly in the vicinity of the front ends 38 b , according one embodiment.
- the barbs 36 a and 36 b are straight.
- an assembly 11 as better shown in FIG. 4B , comprising a spring fastener as described above or in the embodiments and their equivalents presented herein below, and a first part 44 ( FIG. 4 ) comprising a rib 46 (FIG. 4 A) inserted into the cavity 19 of the spring fastener 10 and engaged to the first and second barbs 36 a and 36 b.
- an assembly 1 comprising a spring fastener as described above or in the embodiments presented herein below; a first part 44 ( FIG. 4 ) comprising a rib 46 ( FIG. 4A ) inserted into the cavity 19 of the spring fastener 10 and engaged to the first and second barbs 36 a and 36 b ; and a second part 48 ( FIGS. 4 and 4 B) comprising a slot 50 , which slot 50 has a width W 2 and edges 51 ( FIG. 4C ), so that the edges 51 of said slot are engaged to the engagement regions 28 a and 28 b of the spring fastener 10 .
- the fastener 10 is extracted from the slot 50 without damage to the fastener 10 , and with a higher force than a force required in the absence of the hindrance portions 29 a and 29 b.
- a vehicle comprises an assembly 11 as described above.
- the spring fastener 10 is intended to connect a first part, such as a panel 44 for example, which panel may have a rib 46 , with a second part, such as a frame 48 of a car for example, having a slot 50 , as illustrated in FIG. 4 .
- the rib 46 of the panel 44 is according to one embodiment first inserted into the cavity 19 of the fastener 10 (see FIG. 4A ), where, it is secured by barbs 36 a and 36 b . Then, the fastener 10 , which has been secured on the extension 46 of the panel 44 , is inserted into the slot 50 of the frame 48 , as better shown in FIG. 4B . However the sequence inserting the fastener may be the opposite.
- the length Le (see FIG. 4A ) of the engagement regions 28 is not higher than 2-4 mm, while the thickness T.sub.f of the frame 48 (see FIG. 4B ) may vary in most occasions in the range of 0.5 to 2 mm. This may make it rather difficult to form large hindrance portions.
- 6,141,837 (Wisniewski) are likely too bulky and voluminous, take most of the space between the “reverse bents” (engagement regions between the peak and the recess in the case), and unless they are manufactured within tight tolerances with regard to the thickness of the frame (which in practice may vary considerably), the “base plates” (top portions in the case) do not sit on the frame (see also Wisniewski's Figures), rendering the structure considerably unstable.
- the force to insert the rib of the first part into the cavity of the spring fastener may be less than 40 lbs, less than 15 lbs, and even less that 10 lbs; the force to insert the spring fastener into the slot may be less that 30 lbs, less than 15 lbs, and less than 10 lbs; and the force to extract the spring fastener from the slot should be in the range of 30-100 lbs, and preferably in the range of 50-70 lbs.
- the hindrance portions could comprise rather minute elements.
- Such huge structural components render respective fasteners to be irreversibly inserted into slots. Any attempt to extract these fasteners from the side of the panel that they were inserted could result in destruction of the fasteners.
- the hindrance portions 29 a and 29 b may comprise minute elements, such as ripples, upward solid bent extensions parallel to the peaks and the recesses, knurled regions, bent teeth, each having a depth, the depth of which according to one embodiment does exceed 0.2 mm, or 0.1 mm.
- the depth for any element is substantially defined in the same manner as defined at a later point for the ripples.
- the fastener includes any structure which satisfies the claims, such as for example upward solid bent extensions parallel to the peaks and the recesses, knurled regions, bent teeth, as described in at least one of the provisional patent application 60/301,364, filed Jun. 25, 2001, 60/327,814, filed Oct. 9, 2001, and 60/353,515, filed Feb. 1, 2002, U.S. Pat. Nos. 6,718,599 B2, and 6,745,440 B2, all of which are incorporated herein by reference, according to one embodiment, their depth does not exceed 0.2 mm, or a configuration is one that comprises at most three ripples having a preferable depth not exceeding 0.2 mm, and more preferably not exceeding 0.1 mm.
- the hindrance portion comprises not more than two ripples, and even more preferable one ripple. Structures with one to three two-sided ripples 30 are shown in FIGS. 3B to 3 D, respectively.
- FIG. 2 illustrates a spring fastener 10 according to one embodiment, wherein the hindrance portion 29 comprises one two-sided ripple 30 and bent barbs 36 .
- the most efficient and effective case is the use of only one single-sided ripple 30 , as shown for example in FIGS. 1A and 3A .
- each ripple 30 is in the form of a depression, as better shown in FIG. 5 .
- the depression has a deepest part Z, a front side 32 , a back side 34 , and a width W 1 .
- the hindrance portion 29 has a surface E, and the depth D of each ripple 30 is defined as the distance between the surface E of the hindrance portion 29 and the deepest part Z of the respective ripple 30 .
- the ripple width is larger than the depth of the ripple, and preferably the ripple width is at least twice the size of the depth of the ripple.
- the ripple width is preferably in the range of 0.1 to 0.5 mm and the ripple depth is in the range of 0.01 to 0.1 mm, as aforementioned.
- the back side 34 of the ripple 30 is substantially linear and has a slope S in the range of 15 to 30 degrees with regard to the general plane of the surface E of the hindrance portion 29 , and it is also preferable that the front side 32 has a higher slope than the back side.
- the slope of the front side is measured in the same manner as the slope of the back side.
- the slope is substantially 0 degrees, while if the front side 32 is substantially parallel to the plane of surface E and the continuation of the deepest part Z, it is substantially 90 degrees.
- the back side 34 has the form of a curvature with a gradually decreasing slope.
- the gradually decreasing slope of back side 34 may have the shape of an arc corresponding to an angle A 1 , preferably in the range of 50-70 degrees, with a radius R, preferably in the range of 0.03-0.05 mm., as better shown in FIG. 5A .
- the edges 51 of the slot 50 slide smoothly on the engagement regions 28 as well as the hindrance portions 29 during operation, and when they reach the back sides 34 of the single-sided ripples 30 ( FIG. 5A ), they continue sliding smoothly finding increasingly higher resistance in a continuous manner, which eliminates any rattling noises.
- Such rattling noises would be present in a case that the edges 51 would hit abrupt obstacles or would suddenly jump down, even without hitting such obstacles.
- the barbs are preferably selected from a group consisting essentially of:
- first barbs 36 a being outer barbs
- second barbs 36 b being inner barbs, as better shown in FIG. 6 (blank before forming) and 6 A (side view);
- first barbs 36 a being outside outer barbs, and second barbs 36 b being inside outer barbs, as better shown in FIG. 7 (blank before forming);
- first barbs 36 a being inner barbs
- second barbs 36 b being inner barbs, as better shown in FIG. 8 (blank before forming).
- the barbs engage on the rib 46 of the first part 44 , and when an adequate pulling force is applied on the firs part 44 , the fastener remains on said first part 44 , but is extracted from the slot 50 .
- the spring fastener 10 may also comprise relief openings 42 a and 42 b in the vicinity of the bottom 16 of the spring fastener 10 , as better shown in FIG. 6 (blank before forming). These relief openings facilitate the insertion of the fastener into the slot 50 .
- the spring fastener 10 may further comprise additional lower barbs 40 a and 40 b pointing inwardly and originating form the vicinity of the bottom portion 16 of the first side and the second side, respectively, of the fastener 10 , as better shown in FIG. 9 (blank before forming).
- the first side of the spring fastener 10 has only one upper barb 36 a and one lower barb 40 a , while the second side also has also only one upper barb 36 b and only one lower barb 40 b , in a manner that the upper barb of one side faces the lower barb of the other side and vice versa.
- the barbs 36 may have variable width along their length, as illustrated in for example in FIGS. 6-10 , or they may have substantially the same width along their length as better shown in FIG. 11 . Further, the front points of the barbs 36 may be toothed, as illustrated in FIG. 12 .
- outside outer barbs 36 it is preferable that their front points 38 are at a distance C from the second side 14 smaller than the thickness T of the material from which the spring fastener 10 is made, as better shown in FIG. 1B . This is to avoid interconnection of the fasteners, when said fasteners are stored in bulk.
- the barbs are cut from their respective side, are flexible, and bent in the vicinity of their respective front end as described for example in U.S. Pat. No. 6,279,207 B1, which is incorporated herein by reference, and more particularly in FIG. 1A of said patent, with an angle of bent in the range of 5-25 degrees.
- the fastener 10 has a width W 3 ( FIG. 1B ) in the vicinity of the top portion 18 of the fastener 10 , which is at least 60%, and more preferably at least 70%, as wide as the slot width W 2 ( FIG. 4C ).
- the whole fastener complies with this requirement, or at least a portion in the vicinity of the top. This is to avoid reversal of the direction and failure of the barbs 36 , when and if the rib 46 is forcefully pulled away from the second part 48 ( FIG. 4B ).
- these regions are at least partially wider than the rest of the respective engagement springs 20 (see for example FIG. 6 ).
- the spring fasteners 10 may have two engagement springs 20 at the edges of each side instead of one engagement spring 20 in substantially the middle portion of each side (see for Example FIG. 10 ).
- the spring fastener 10 may further comprise a molded elastic body 54 at least under the top portion 18 of said spring fastener 10 , as better shown in FIG. 13 .
- a molded elastic body 54 at least under the top portion 18 of said spring fastener 10 , as better shown in FIG. 13 .
- this embodiment is similar to the operation of the previously described embodiments with the difference that the elastic body provides moderate sealing properties to the fastener when the fastener is inserted into the slot.
- the spring fastener may further comprise:
- an elastic body 54 comprised of at least a gasket 56 , the gasket 56 extending away from the closed cavity 19 in the vicinity of the top portion 18 of the fastener 10 and enclosing at least partially the cavity 19 ;
- a casing 58 surrounding at least partially the spring fastener under the top portion 18 , except at least the engagement region 28 of each engagement spring 20 , the casing 58 also at least partially surrounding the cavity 19 and such portion of the elastic body 54 which at least partially encloses the cavity;
- the casing 58 has lower ultimate elongation, higher Shore hardness, and higher shear strength than the elastic body 54 ;
- lips 60 improves considerably the sealing properties of the elastic body.
- this embodiment is similar to the operation of the previously described embodiments with the difference that the combination of the elastic body 54 with the casing 58 provide outstanding sealing properties to the fastener 10 when the fastener 10 is inserted into the slot 50 , and the casing itself facilitates the insertion of the fastener 10 into the slot 50 .
- any embodiments of fasteners described above and their equivalents may be used in any assembly in which the first part and the second part are connected with the fastener, as well as in any vehicle comprising such an assembly or such a fastener or its equivalents.
Abstract
A spring fastener engages the rib of a first part, such as a plastic panel for example, like a pillar for example, may be engaged, and they are also suitable to be engaged reversibly in a slot of second part, such as a metal sheet for example, like the frame of a car for example. The spring fastener comprises engagement springs having a peak, engagement regions and-side cuts in the vicinity of the peak, for example within the engagement regions. The side-cuts, of preferably triangular shape, increase the lever/angle pulling force (pulling force applied on the first part and away from the spring fastener, in order to separate the first part from a second part connected together with the spring fastener). According to one embodiment, the fastener comprises barbs with inwardly bent front ends, and the engagement regions further have hindrance portions.
Description
- This application is a continuation application of co-pending application Ser. No. 10/942,634 entitled “Spring fastener with highly improved lever/angle pulling force”, filed on Sep. 16, 2004 and owned by the instant assignee, which claims priority from
provisional application 60/520,807 filed on Nov. 17, 2003 also owned by the instant assignee. - This application relates to spring fasteners. This application also relates to an assembly as connected to each other through the fastener, as well as vehicles comprising such assemblies.
- A number of fasteners have been used in the past for securing one object on another object, as for example, securing an article such as for example a plastic sheet on a metal or other rigid plastic sheet. However, these fasteners have a rather low ratio of insertion force to removal force. In other words, they require considerable force to be inserted into a slot in order to provide adequate removal resistance in order to be removed from the slot. This is ergonomically inferior performance, and the operators may suffer miscellaneous ailments, while productivity is also considerably undermined. In addition the fasteners of the present state in the art suffer from rather inferior Lever/Angle Pulling force.
- Lever/Angle pulling force is defined as the force required to separate one part from another part connected with a fastener by pulling said parts apart, not straight away form each other, but sideways from each other, as will be described in more detail herein below.
- According to one embodiment, the fasteners have a considerably higher Lever/Angle pulling force than the fasteners of the present state in the art.
- Recently, a fastener has been disclosed in U.S. Pat. No. 6,718,599 B2, which is incorporated herein by reference, characterized by ergonomically balanced removal to insertion force ratio. However, even in this case, the Lever/Angle pulling force is relatively low.
- Examples of other state in the art fasteners are disclosed in U.S. Pat. No. 6,381,811 (Smith et al.), U.S. Pat. No. 6,353,981, U.S. Pat. No. 6,074,150 (Shinozaki et al.), U.S. Pat. No. 5,987,714 (Smith); U.S. Pat. No. 5,887,319 (Smith); U.S. Pat. No. 5,542,158 (Gronau et al.); U.S. Pat. No. 5,422,789 (Fisher et al.), U.S. Pat. No. 5,373,611 (Murata); U.S. Pat. No. 5,314,280 (Gagliardi); U.S. Pat. No. 5,095,592 (Doerfling); U.S. Pat. No. 4,701,984 (Wyckoff), U.S. Pat. No. 4,792,475 (Bien); U.S. Pat. No. 4,683,622 (Ohelke); U.S. Pat. No. 4,609,170 (Schnabl); U.S. Pat. No. 4,245,652 (Kelly et al.); U.S. Pat. No. 3,864,789 (Leitner); U.S. Pat. No. 3,673,643 (Kindell); U.S. Pat. No. 3,525,129 (Holton); U.S. Pat. No. 2,825,948 (Parkin); U.S. Pat. No. 2,607,971 (Bedford, Jr.); U.S. Pat. No. 2,542,883 (Tinnerman); U.S. Pat. No. 2,329,688 (Bedford, Jr.); U.S. Pat. No. 2,322,656 (Murphy), among others.
- U.S. Pat. No. 5,919,019 (Fisher) provides fasteners which can only be permanently installed into a slot; they can only be inserted but not extracted without damage to parts of the fastener. The major engagement is performed by spring strips, while frictional portions of the fastener pass through the slot with at most slight compression, and immediately after the insertion of the fastener they are located in slightly spaced or barely contacting relation with the edges of the slot. They are only activated for engagement after the insertion of a bolt into a hole at the base plate. Thus, the profound effect of the increased removal to insertion ratio (explained in detail herein below) is not recognized, mentioned, or implied. Thus, the distance of the frictional portions away from the edges of the slot by Fisher, during insertion and before use of the bolt, increases the insertion force.
- U.S. Pat. No. 6,141,837 (Wisniewski) describes a spring fastener comprising bulbous and outwardly projecting portions, which assist in preventing withdrawal of the clip and associated molding from an aperture of a vehicle frame. However, “bulbous projections” are necessarily voluminous, take most of the space between the “reverse bents”, and unless they are manufactured within tight tolerances with regard to the thickness of the frame, the “base plates” do not sit on the frame (see also the Figures), rendering the structure unstable.
- U.S. Pat. No. 6,203,240 B1 (Hironaka et al.), U.S. Pat. No. 5,129,768 (Hoyle et al.), U.S. Pat. No. 5,092,550 (Bettini), U.S. Pat. No. 4,981,310 (Belissaire), U.S. Pat. No. 4,712,341 (Harris, Jr. et al.), U.S. Pat. No. 4,595,325 (Moran et al.), U.S. Pat. No. 4,431,355 (Junemann), U.S. Pat. No. 4,133,246 (Small), and U.S. Pat. No. 2,424,757 (F. Klump, Jr.) are directed to plastic or metal fasteners which are designed to be just inserted into the slot of a panel, but not extracted without damage to the fastener (if such extraction would be attempted from the front side; the side from which the fastener is inserted into the panel, since the back part of the panel is not reachable in the cases, wherein such types of fasteners are used).
- None of the above disclosures of the present state in the art provide satisfactory Lever/Angle pulling force.
- According to one embodiment, a spring fastener engages the rib of a first part, such as a plastic panel for example. The spring fastener is also suitable to be engaged reversibly in a slot of second part, such as a metal sheet or the frame of a car for example. According to one embodiment an assembly of the first and the second part as connected to each other through the fastener, as well as vehicles comprising such assemblies. According to one embodiment, the spring fasteners have a Lever/Angle pulling force, which is considerably higher than that characterizing spring fasteners of the present state in the art.
- According to one embodiment, an increase in Lever/Angle pulling force is attained by forming a side-cut section, especially at least partially bent outwardly, disposed in the spring fastener, as will described in more detail herein below.
- Outwardly means away from the fastener.
- According to one embodiment, a spring fastener comprises a first side and a second side opposite the first side, the first side connected to the second side thereby forming a U-shaped structure. According to one embodiment, a cavity is formed between the first side and the second side. The fastener further comprises a bottom portion wherein the first side and the second side are connected, and a top portion. The first side comprises a first engagement spring, the first engagement spring connected to the first side in the vicinity of the bottom portion. The second side comprises a second engagement spring, the second engagement spring connected to the second side in the vicinity of the bottom portion. At least one of: the first engagement spring and/or the second engagement spring comprises side-cuts being across each other. According to one embodiment, each of the first and second engagement springs comprising a peak, a free end in the vicinity of the top portion, and an engagement region between the peak and the front end. According to one embodiment, at least one engagement spring further having a side-cut section or notch, preferably in the vicinity the respective peak, the side-cut section or notch oriented substantially parallel to the peak. According to one embodiment, however, that each spring has two side-cut sections, one opposite to the other.
- The side-cut sections or notches have an upper edge and a lower edge. According to one embodiment, that at least one of the lower edges, or all lower edges are at least partially bent outwardly.
- The spring fastener according to one embodiment pertains an assembly comprising:
- a spring fastener comprises a first side and a second side opposite the first side, the first side connected to the second side thereby forming a U-shaped structure. According to one embodiment, a cavity is formed between the first side and the second side. The fastener further comprises a bottom portion wherein the first side and the second side are connected, and a top portion. The first side comprises a first engagement spring, the first engagement spring connected to the first side in the vicinity of the bottom portion. The second side comprises a second engagement spring, the second engagement spring connected to the second side in the vicinity of the bottom portion. At least one of: the first engagement spring and/or the second engagement spring comprises side-cuts being across each other. According to one embodiment, each of the first and second engagement springs comprising a peak, a free end in the vicinity of the top portion, and an engagement region between the peak and the front end. According to one embodiment, at least one engagement spring further having a side-cut section or notch, preferably in the vicinity the respective peak, the side-cut section or notch oriented substantially parallel to the peak. According to one embodiment, however, that each spring has two side-cut sections, one opposite to the other;
- a first part comprising a rib inserted into the cavity of the spring fastener and engaged to the first and second barbs; and/or
- a second part comprising a slot, the slot having a width and edges, the fastener being disposed in the slot in a manner that the edges of said slot are engaged to the engagement regions of the spring fastener.
- According to one embodiment, a vehicle comprises an assembly, the assembly comprising vehicle comprising an assembly, the assembly comprising:
- a spring fastener comprises a first side and a second side opposite the first side, the first side connected to the second side thereby forming a U-shaped structure. According to one embodiment, a cavity is formed between the first side and the second side. The fastener further comprises a bottom portion wherein the first side and the second side are connected, and a top portion. The first side comprises a first engagement spring, the first engagement spring connected to the first side in the vicinity of the bottom portion. The second side comprises a second engagement spring, the second engagement spring connected to the second side in the vicinity of the bottom portion. At least one of: the first engagement spring and/or the second engagement spring comprises side-cuts being across each other. According to one embodiment, each of the first and second engagement springs comprising a peak, a free end in the vicinity of the top portion, and an engagement region between the peak and the front end. According to one embodiment, at least one engagement spring further having a side-cut section or notch, preferably in the vicinity the respective peak, the side-cut section or notch oriented substantially parallel to the peak. According to one embodiment, however, that each spring has two side-cut sections, one opposite to the other;
- a first part comprising a rib inserted into the cavity of the spring fastener and engaged to the first and second barbs; and
- a second part comprising a slot, the slot having a width and edges, the fastener being disposed in the slot in a manner that the edges of said slot are engaged to the engagement regions of the spring fastener.
- According to one embodiment, the fastener comprises hindrance portion within the engagement region, and the side-cut section is disposed within the engagement region. According to one embodiment, the side-cut section has a triangular shape.
- The spring fastener may further comprise a recess within the engagement region, in the vicinity of the top end.
- The hindrance portion may have any suitable structure, which hinders to a desired degree the removal of the spring fastener from the slot described above. According to one embodiment, the said hindrance portion comprises one structure selected from ripple, side rib, upward solid bent extension parallel to the peak and the optional recess, knurled region, bent teeth, each having a depth, a bump or bulbous formation, and a combination thereof.
- According to one embodiment, there may be a single ripple in the vicinity of the peak or the ripple may have a back side with a curvature of a gradually decreasing slope. Preferably, the gradually decreasing slope has the shape of an arc in the range of 50-70 degrees with a radius in the range of 0.03-0.05 mm.
- More details regarding configurations of engagement regions are described in Non-provisional patent application Ser. No. 10/164,963, filed Jun. 7, 2002, and its respective Patent Application Publication US 2002/0194710 A1, Pub. Date Dec. 26, 2002, both of which are incorporated herein by reference.
- According to one embodiment the spring fastener further comprises first barbs and second barbs being cut portions of the respective first and second side of the spring fastener, originating from the vicinity of the top portion of said spring fastener and directed toward the bottom portion the spring fastener, the first barbs and the second barbs comprising respective first back sections and first front sections, the first sections being bent portions of the first back sections, and second back sections and second front sections, the second front sections being bent portions of the second back sections.
- The barbs are selected from a group consisting essentially of:
- first barbs being outer barbs and second barbs being inner barbs;
- first barbs being outside outer barbs and second barbs being inside outer barbs; and
- first barbs being inner barbs and second barbs being inner barbs.
- It is preferable that the barbs which are cut from their respective side, are flexible, and bent in the vicinity of their respective front end as described for example in U.S. Pat. No. 6,279,207 B1, which is incorporated herein by reference, and more particularly in
FIG. 1A of said patent, with an angle of bent in the range of 5-25 degrees. - The barbs are considered to be flexible if they do not cause the width W3 (
FIG. 1B ) to increase more than 30%, preferably 20%, and more preferably 10%, when therib 46 is inserted into thecavity 19 of the fastener 10 (FIG. 4A ), and provided that thefirst object 46 is adequately hard to hinder the barbs 36 from substantially digging into it. - Regarding the outside outer barbs, it is preferable that their front points are at a distance from the second side smaller than the thickness of the material from which the spring fastener was made. This is to avoid interconnection of the fasteners, when said fasteners are stored in bulk.
- The barbs may have variable width along their length, or they may have substantially the same width along their length. Further, the front points of the barbs may be toothed.
- More details regarding bent barbs are also described in U.S. Pat. Nos. 6,279,207 B1 and 6,691,380 B2, both of which are incorporated herein by reference.
- The spring fastener may further comprise a molded elastic body at least under the top portion of said spring fastener for sealing purposes. Such arrangements are disclosed in U.S. Pat. No. 6,353,981 B1, which is incorporated herein by reference. Other sealing arrangements are also included, as described for example in U.S. Pat. No. 6,527,471 B2, which is also incorporated herein by reference.
- In another embodiment, the spring fastener may further comprise:
- an elastic body comprised of at least a gasket, the gasket extending away from the cavity in the vicinity of the top portion of the fastener and enclosing at least partially the cavity; and
- a casing surrounding at least partially the spring fastener under the top portion, except at least the engagement section of each engagement spring, the casing also at least partially surrounding the cavity and such portion of the elastic body which at least partially encloses the cavity;
- wherein the casing has lower ultimate elongation, higher Shore hardness, and higher shear strength than the elastic body. Thus, preferably the casing is substantially non-elastic.
- Such arrangements are disclosed in U.S. Pat. Nos. 6,381,811 B2, 6,497,011 B2, 6,527,471 B2, and 6,648,547 B2, all of which is incorporated herein by reference.
- According to one embodiment the fasteners described above and their equivalents may be used in any assembly in which the first part and/or the second part are connected with the fastener, as well as in any vehicle comprising such an assembly or such a fastener or its equivalents
- The reader's understanding of practical implementation of embodiments will be enhanced by reference to the following detailed description taken in conjunction with perusal of the drawing figures, wherein:
-
FIG. 1 illustrates a perspective view of a spring fastener according to an embodiment, wherein the engagement regions of the first and second springs have side-cut sections or notches in the vicinity of the bent. -
FIG. 1A 1 illustrates a perspective view of a spring fastener according to another embodiment, wherein the hindrance portion comprises a single-sided ripple and bent barbs, and the engagement regions of the first and second springs have side-cut sections or notches in the vicinity of the bent. -
FIG. 1B shows a side view of the spring fastener ofFIG. 1A . -
FIG. 1C illustrates a perspective view of a spring fastener according to another embodiment, wherein the lower edges of the side-cut sections or notches are at least partially bent outwardly. -
FIG. 2 illustrates a perspective view of a spring fastener according to another embodiment, wherein the hindrance portion comprises one two-sided ripple and bent barbs, and the engagement regions of the first and second springs have side-cut sections or notches in the vicinity of the bent. -
FIG. 3A illustrates side view of an engagement spring, wherein the hindrance portion comprises a single-sided ripple, and the engagement regions have side-cut sections or notches in the vicinity of the bent. -
FIG. 3B illustrates a side view of an engagement spring, wherein the hindrance portion comprises one two-sided ripple, and the engagement regions have side-cut sections or notches in the vicinity of the bent. -
FIG. 3C illustrates a side view of an engagement spring, wherein the hindrance portion comprises two two-sided ripples, and the engagement regions have side-cut sections or notches in the vicinity of the bent. -
FIG. 3D illustrates a side view slice of an engagement spring, wherein the hindrance portion comprises three two-sided ripples, and the engagement regions have side-cut sections or notches in the vicinity of the bent. -
FIG. 4 illustrates two parts, which can be connected with the fastener according to one embodiment. -
FIG. 4A illustrates the side view of the fastener ofFIG. 1A and a cross sectional slice of the rib of a first part, such as a panel or an automotive pillar, for example, inserted into the cavity of the fastener. -
FIG. 4B illustrates the same elements shown inFIG. 4A after insertion of the fastener into the slot of a second part, such as the frame of an automobile for example. -
FIG. 4C illustrates a partial cross section of the second part ofFIG. 4B and the edges of the slot in relation with the engagement regions of the engagement springs of the fastener. -
FIG. 5 illustrates a detailed diagram of a ripple in the hindrance portion according to one embodiment. -
FIG. 5A illustrates a detailed diagram of a single-sided ripple having a back side in the form of a curvature in the hindrance portion according to one embodiment. -
FIG. 6 illustrates a stamped fastener before final formation according to another embodiment, wherein the fastener comprises outer and inner barbs, as well as relief portions in the vicinity of the bottom of the fastener. -
FIG. 6A illustrates a side view of the fastener ofFIG. 6 after final formation. -
FIG. 7 illustrates a stamped fastener before final formation according to another embodiment, wherein the fastener comprises outside outer barbs on the first side and inside outer barbs on the second side. -
FIG. 8 illustrates a stamped fastener before final formation according to another embodiment, wherein the fastener comprises only inner barbs. -
FIG. 9 illustrates a stamped fastener before final formation according to another embodiment, wherein the fastener comprises upper and lower outer and inner barbs. -
FIG. 10 illustrates a stamped fastener before final formation according to another embodiment, wherein the fastener comprises two engagement springs per side of the fastener, and only one upper and one lower barb per side. -
FIG. 11 illustrates a stamped fastener before final formation according to another embodiment, wherein the barbs have uniform width along their length. -
FIG. 12 illustrates a stamped fastener before final formation according to another embodiment, wherein the barbs have uniform width along their length, and they are toothed at their front ends. -
FIG. 13 illustrates a cross-sectional slice of the middle portion of a spring fastener, according to another embodiment, wherein a moldedelastic body 54 is disposed at least under the top portion of said spring fastener. -
FIG. 14 is a perspective view of a fastener, according to still another embodiment, wherein the lower portion of the fastener is covered by a casing, while an elastic body is disposed in the vicinity of the top portion and encloses the cavity, at least partially. - A spring fastener engages the rib of a first part, such as a plastic panel for example, like a pillar for example, may be engaged, and they are also suitable to be engaged reversibly in a slot of second part, such as a metal sheet for example, like the frame of a car for example. An assembly of the first part connected to the fastener, the first and the second part connected to each other through the fastener, as well as vehicles comprising such assemblies.
- More particularly, as better shown in
FIGS. 1, 1A and 1B, aspring fastener 10 comprising afirst side 12 and asecond side 14 opposite thefirst side 12. Thefirst side 12 is connected to thesecond side 14 forming a U-shaped structure which has acavity 19 between thefirst side 12 and thesecond side 14. Thefastener 10 also has abottom portion 16, wherein thefirst side 12 and thesecond side 14 are connected. It further has atop portion - In all cases, numerals referring to the
first side 12 contain the letter “a”, while numerals referring thesecond side 14 contain the letter “b”. The same numerals without the letters “a” or “b” refer collectively to the respective elements of both sides. - The
first side 12 comprises afirst engagement spring 20 a, which is connected to thefirst side 12 in the vicinity of thebottom portion 16. - The
second side 14 comprises asecond engagement spring 20 b, which is connected to thesecond side 14, also in the vicinity of the bottom portion. - Each of the first and second engagement springs 20 a and 20 b may preferably, but not necessarily, have a first and second recess, 24 a and 24 b, respectively, as shown in
FIGS. 1A and 1B , and a first and second free end, 22 a and 22 b, respectively, in the vicinity of the top portion 18 (18 a and 18 b, respectively). Each spring also comprises a first and a second peak, 26 a and 26 b, respectively, and a first and second engagement region, 28 a and 28 b, respectively. - According to one embodiment, within the engagement region, such as in the vicinity of the
peaks 26, there are side-cut sections notches 8 has an upper edge 7 (7 a and 7 b), and a lower edge 9 (9 a and 9 b). According to one embodiment the lower edges 9 (9 a and 9 b) are at least partially bent outwardly, as better illustrated inFIG. 1C . - The lever/angle pulling force is defined as the force required to separate one part from another part connected with a fastener by pulling said parts apart, not straight away form each other, but sideways from each other.
- According to one embodiment the
engagement regions 28, further comprise a first and second hindrance portion, 29 a and 29 b, respectively, between thebents 26 and the front ends 22. - The hindrance portions provide increased removal force, when the
fastener 10 is pulled by a rib or extension 46 (FIG. 4B ) of a first part 44 (FIG. 4 ) engaged to the first and second barbs, 36 a and 36 b, respectively, after thefastener 10 has been inserted into aslot 50 of a second part 48 (FIG. 4 ), theslot 50 having a slot width W2 (FIGS. 4 and 4 C) and edges 51 (FIG. 4C ) on which edges theengagement regions rib 46 of thefirst part 44 straight away from thesecond part 48 in the vicinity of point F1. - The increased removal force is due to the
hindrance portions FIG. 4C ), which in this particular case comprise single ripples with only back sides 34, as it will be explained at a later point in more detail. According to one embodiment, theengagement portions hindrance regions fastener 10 can be extracted from theslot 50 when pulled by therib 46 without damage to saidfastener 10, and with a higher force than a force required in the absence of thehindrance portions - The lever/angle pulling force is measured by pulling the
first part 44 apart from thesecond part 48, not straight away, but sideways from each other, that is for example by pulling thefirst part 44 from a point F2 away from therib 46, such as theedge 45 for example of thefirst part 44, such as an automotive pillar for example. - In different applications, the exact position of point F2 may be different, as well as the required increase in lever/angle force by the use of the side-cut sections.
- The
first side 12 also comprisesfirst barbs 36 a, which in the case shown inFIGS. 1A and 1B are outer barbs, since they are disposed in an outer portion of thefirst side 12. Thebarbs 36 a have first front ends 38 a. In the particular cases ofFIGS. 1A and 1B , thefirst barbs 36 a are bent inwardly in the vicinity of the front ends 38 a, according to one embodiment. - The
second side 14 comprisessecond barbs 36 b, which in the case ofFIGS. 1A and 1B are inner barbs, since they are disposed in an inner portion of thesecond side 14. The second barbs have second front ends 38 b. In this particular case ofFIGS. 1A and 1B thesecond barbs 36 b are also bent inwardly in the vicinity of the front ends 38 b, according one embodiment. - In the case of
FIG. 1 , thebarbs - According to one embodiment an
assembly 11, as better shown inFIG. 4B , comprising a spring fastener as described above or in the embodiments and their equivalents presented herein below, and a first part 44 (FIG. 4 ) comprising a rib 46 (FIG. 4A) inserted into thecavity 19 of thespring fastener 10 and engaged to the first andsecond barbs - Further, an assembly 1, as better shown in
FIG. 4B , comprising a spring fastener as described above or in the embodiments presented herein below; a first part 44 (FIG. 4 ) comprising a rib 46 (FIG. 4A ) inserted into thecavity 19 of thespring fastener 10 and engaged to the first andsecond barbs FIGS. 4 and 4 B) comprising aslot 50, whichslot 50 has a width W2 and edges 51 (FIG. 4C ), so that theedges 51 of said slot are engaged to theengagement regions spring fastener 10. In this case also, by pulling therib 46, thefastener 10 is extracted from theslot 50 without damage to thefastener 10, and with a higher force than a force required in the absence of thehindrance portions - According to one embodiment, a vehicle comprises an
assembly 11 as described above. - In operation of the above embodiments, the
spring fastener 10 is intended to connect a first part, such as apanel 44 for example, which panel may have arib 46, with a second part, such as aframe 48 of a car for example, having aslot 50, as illustrated inFIG. 4 . - The
rib 46 of thepanel 44 is according to one embodiment first inserted into thecavity 19 of the fastener 10 (seeFIG. 4A ), where, it is secured bybarbs fastener 10, which has been secured on theextension 46 of thepanel 44, is inserted into theslot 50 of theframe 48, as better shown inFIG. 4B . However the sequence inserting the fastener may be the opposite. - In this manner, the first part, exemplified by
panel 44, has been connected on the second part, exemplified byframe 48, through thefastener 10. - According to one embodiment, the length Le (see
FIG. 4A ) of theengagement regions 28 is not higher than 2-4 mm, while the thickness T.sub.f of the frame 48 (seeFIG. 4B ) may vary in most occasions in the range of 0.5 to 2 mm. This may make it rather difficult to form large hindrance portions. Thus, the “bulbous projections” suggested by U.S. Pat. No. 6,141,837 (Wisniewski) are likely too bulky and voluminous, take most of the space between the “reverse bents” (engagement regions between the peak and the recess in the case), and unless they are manufactured within tight tolerances with regard to the thickness of the frame (which in practice may vary considerably), the “base plates” (top portions in the case) do not sit on the frame (see also Wisniewski's Figures), rendering the structure considerably unstable. - According to one embodiment, and for ergonomic purposes combined with practical aspects, the force to insert the rib of the first part into the cavity of the spring fastener may be less than 40 lbs, less than 15 lbs, and even less that 10 lbs; the force to insert the spring fastener into the slot may be less that 30 lbs, less than 15 lbs, and less than 10 lbs; and the force to extract the spring fastener from the slot should be in the range of 30-100 lbs, and preferably in the range of 50-70 lbs.
- According to one embodiment, in order to achieve the above results, the hindrance portions could comprise rather minute elements. Such huge structural components render respective fasteners to be irreversibly inserted into slots. Any attempt to extract these fasteners from the side of the panel that they were inserted could result in destruction of the fasteners.
- According to one embodiment, the
hindrance portions - The depth for any element is substantially defined in the same manner as defined at a later point for the ripples.
- According to one embodiment the fastener includes any structure which satisfies the claims, such as for example upward solid bent extensions parallel to the peaks and the recesses, knurled regions, bent teeth, as described in at least one of the
provisional patent application 60/301,364, filed Jun. 25, 2001, 60/327,814, filed Oct. 9, 2001, and 60/353,515, filed Feb. 1, 2002, U.S. Pat. Nos. 6,718,599 B2, and 6,745,440 B2, all of which are incorporated herein by reference, according to one embodiment, their depth does not exceed 0.2 mm, or a configuration is one that comprises at most three ripples having a preferable depth not exceeding 0.2 mm, and more preferably not exceeding 0.1 mm. According to one embodiment the hindrance portion comprises not more than two ripples, and even more preferable one ripple. Structures with one to three two-sided ripples 30 are shown inFIGS. 3B to 3D, respectively. -
FIG. 2 illustrates aspring fastener 10 according to one embodiment, wherein thehindrance portion 29 comprises one two-sided ripple 30 and bent barbs 36. - The most efficient and effective case, however, according to one embodiment, is the use of only one single-
sided ripple 30, as shown for example inFIGS. 1A and 3A . - The operation of these embodiments is substantially the same as the operation of the previous embodiments.
- According to one embodiment each
ripple 30 is in the form of a depression, as better shown inFIG. 5 . The depression has a deepest part Z, afront side 32, aback side 34, and a width W1. Thehindrance portion 29 has a surface E, and the depth D of eachripple 30 is defined as the distance between the surface E of thehindrance portion 29 and the deepest part Z of therespective ripple 30. - For better performance, the ripple width is larger than the depth of the ripple, and preferably the ripple width is at least twice the size of the depth of the ripple. The ripple width is preferably in the range of 0.1 to 0.5 mm and the ripple depth is in the range of 0.01 to 0.1 mm, as aforementioned.
- According to one embodiment, the
back side 34 of theripple 30 is substantially linear and has a slope S in the range of 15 to 30 degrees with regard to the general plane of the surface E of thehindrance portion 29, and it is also preferable that thefront side 32 has a higher slope than the back side. The slope of the front side is measured in the same manner as the slope of the back side. Thus, if thefront side 32 is substantially perpendicular to the surface E, the slope is substantially 0 degrees, while if thefront side 32 is substantially parallel to the plane of surface E and the continuation of the deepest part Z, it is substantially 90 degrees. - According to one embodiment the
back side 34 has the form of a curvature with a gradually decreasing slope. For example, the gradually decreasing slope ofback side 34 may have the shape of an arc corresponding to an angle A1, preferably in the range of 50-70 degrees, with a radius R, preferably in the range of 0.03-0.05 mm., as better shown inFIG. 5A . - According to one embodiment during vibrations, the
edges 51 of the slot 50 (FIG. 4C ) slide smoothly on theengagement regions 28 as well as thehindrance portions 29 during operation, and when they reach the back sides 34 of the single-sided ripples 30 (FIG. 5A ), they continue sliding smoothly finding increasingly higher resistance in a continuous manner, which eliminates any rattling noises. Such rattling noises would be present in a case that theedges 51 would hit abrupt obstacles or would suddenly jump down, even without hitting such obstacles. - The barbs are preferably selected from a group consisting essentially of:
-
first barbs 36 a being outer barbs, andsecond barbs 36 b being inner barbs, as better shown inFIG. 6 (blank before forming) and 6A (side view); -
first barbs 36 a being outside outer barbs, andsecond barbs 36 b being inside outer barbs, as better shown inFIG. 7 (blank before forming); and -
first barbs 36 a being inner barbs, andsecond barbs 36 b being inner barbs, as better shown inFIG. 8 (blank before forming). - In operation, the barbs engage on the
rib 46 of thefirst part 44, and when an adequate pulling force is applied on thefirs part 44, the fastener remains on saidfirst part 44, but is extracted from theslot 50. - The
spring fastener 10 may also compriserelief openings spring fastener 10, as better shown inFIG. 6 (blank before forming). These relief openings facilitate the insertion of the fastener into theslot 50. - The
spring fastener 10 may further comprise additionallower barbs bottom portion 16 of the first side and the second side, respectively, of thefastener 10, as better shown inFIG. 9 (blank before forming). - According to one embodiment, better illustrated in
FIG. 10 (blank before forming), the first side of thespring fastener 10 has only oneupper barb 36 a and onelower barb 40 a, while the second side also has also only oneupper barb 36 b and only onelower barb 40 b, in a manner that the upper barb of one side faces the lower barb of the other side and vice versa. - The barbs 36 may have variable width along their length, as illustrated in for example in
FIGS. 6-10 , or they may have substantially the same width along their length as better shown inFIG. 11 . Further, the front points of the barbs 36 may be toothed, as illustrated inFIG. 12 . - Regarding outside outer barbs 36, it is preferable that their front points 38 are at a distance C from the
second side 14 smaller than the thickness T of the material from which thespring fastener 10 is made, as better shown inFIG. 1B . This is to avoid interconnection of the fasteners, when said fasteners are stored in bulk. - According to one embodiment the barbs are cut from their respective side, are flexible, and bent in the vicinity of their respective front end as described for example in U.S. Pat. No. 6,279,207 B1, which is incorporated herein by reference, and more particularly in
FIG. 1A of said patent, with an angle of bent in the range of 5-25 degrees. - According to one embodiment the
fastener 10 has a width W3 (FIG. 1B ) in the vicinity of the top portion 18 of thefastener 10, which is at least 60%, and more preferably at least 70%, as wide as the slot width W2 (FIG. 4C ). According to one embodiment the whole fastener complies with this requirement, or at least a portion in the vicinity of the top. This is to avoid reversal of the direction and failure of the barbs 36, when and if therib 46 is forcefully pulled away from the second part 48 (FIG. 4B ). - With respect to the
engagement regions 28, it is preferable that these regions are at least partially wider than the rest of the respective engagement springs 20 (see for exampleFIG. 6 ). - The more barbs are present, or the more bent their front points are, the stronger the engagement of the
rib 46 in thecavity 19. However, in many occasions it is desirable that this engagement is not so strong so as to destroy the integrity of the fastener or the rib, when an adequate force is applied to separate thefastener 10 from therib 46. - The
spring fasteners 10 may have two engagement springs 20 at the edges of each side instead of one engagement spring 20 in substantially the middle portion of each side (see for ExampleFIG. 10 ). - The
spring fastener 10 may further comprise a moldedelastic body 54 at least under the top portion 18 of saidspring fastener 10, as better shown inFIG. 13 . Such arrangements are disclosed in U.S. Pat. No. 6,353,981 B1, which is incorporated herein by reference. - The operation of this embodiment is similar to the operation of the previously described embodiments with the difference that the elastic body provides moderate sealing properties to the fastener when the fastener is inserted into the slot.
- According to one embodiment, the spring fastener may further comprise:
- an
elastic body 54 comprised of at least agasket 56, thegasket 56 extending away from theclosed cavity 19 in the vicinity of the top portion 18 of thefastener 10 and enclosing at least partially thecavity 19; and - a
casing 58 surrounding at least partially the spring fastener under the top portion 18, except at least theengagement region 28 of each engagement spring 20, thecasing 58 also at least partially surrounding thecavity 19 and such portion of theelastic body 54 which at least partially encloses the cavity; - wherein the
casing 58 has lower ultimate elongation, higher Shore hardness, and higher shear strength than theelastic body 54; - as better shown in
FIG. 14 . - The presence of
lips 60 improves considerably the sealing properties of the elastic body. - Such arrangements are also disclosed in U.S. Pat. No. 6,381,811 B2, which is incorporated herein by reference.
- The operation of this embodiment is similar to the operation of the previously described embodiments with the difference that the combination of the
elastic body 54 with thecasing 58 provide outstanding sealing properties to thefastener 10 when thefastener 10 is inserted into theslot 50, and the casing itself facilitates the insertion of thefastener 10 into theslot 50. - According to one embodiment, any embodiments of fasteners described above and their equivalents may be used in any assembly in which the first part and the second part are connected with the fastener, as well as in any vehicle comprising such an assembly or such a fastener or its equivalents.
Claims (20)
1. A fastener comprising:
a first side;
a second side opposite the first side, the first side connected to the second side thereby forming a U-shaped structure;
a bottom portion wherein the first side and the second side are connected;
a first engagement spring connected to the first side in the vicinity of the bottom portion; and
a second engagement spring connected to the second side in the vicinity of the bottom portion;
wherein at least one of: the first engagement spring and the second engagement spring comprises side-cuts being across each other.
2. A spring fastener as defined in claim 1 , wherein the engagement region further comprises one structure selected from at least one: depression ripple, side rib, upward solid bent extension parallel to the peak, knurled region, bent teeth, each having a depth, a bump, and a combination thereof.
3. A spring fastener as defined in claim 1 , wherein at least one of the side-cuts has a triangular shape.
4. A spring fastener as defined in claim 1 , wherein each side-cut further includes an upper edge and a lower edge partially bent outwardly.
5. A spring fastener as defined in claim 1 , further comprising first barbs and second barbs being cut portions of the respective first and second side.
6. A spring fastener as defined in claim 1 , wherein at least one of the side cuts are aligned with a peak on at least one of the engagement springs.
7. A spring fastener as defined in claim 1 , wherein at least one of the side cuts includes an upper edge and a lower edge connecting with a spring side of the corresponding engagement spring.
8. A spring fastener as defined in claim 1 , wherein the spring fastener further comprises an elastic body molded on the spring fastener.
9. An assembly of a first part comprising a rib and a spring fastener, the spring fastener comprising
a first side;
a second side opposite the first side, the first side connected to the second side thereby forming a U-shaped structure;
a bottom portion wherein the first side and the second side are connected;
a first engagement spring connected to the first side in the vicinity of the bottom portion; and
a second engagement spring connected to the second side in the vicinity of the bottom portion;
wherein at least one of: the first engagement spring and the second engagement spring comprises side-cuts being across each other.
10. A spring fastener as defined in claim 9 , wherein the engagement region further comprises one structure selected from at least one: depression ripple, side rib, upward solid bent extension parallel to the peak, knurled region, bent teeth, each having a depth, a bump, and a combination thereof.
11. A spring fastener as defined in claim 9 , wherein at least one of the side-cuts has a triangular shape.
12. A spring fastener as defined in claim 9 , further comprising first barbs and second barbs being cut portions of the respective first and second side.
13. A spring fastener as defined in claim 9 , wherein at least one of the side cuts are aligned with a peak on at least one of the engagement springs.
14. A spring fastener as defined in claim 9 , wherein at least one of the side cuts includes an upper edge and a lower edge connecting with a spring side of the corresponding engagement spring.
15. A spring fastener as defined in claim 9 , wherein the spring fastener further comprises an elastic body molded on the spring fastener.
16. A vehicle comprising parts connected with a spring fastener, the spring fastener comprising:
a first side;
a second side opposite the first side, the first side connected to the second side thereby forming a U-shaped structure;
a bottom portion wherein the first side and the second side are connected;
a first engagement spring connected to the first side in the vicinity of the bottom portion; and
a second engagement spring connected to the second side in the vicinity of the bottom portion;
wherein at least one of: the first engagement spring and the second engagement spring comprises side-cuts being across each other.
17. A spring fastener as defined in claim 16 , wherein the engagement region further comprises one structure selected from at least one: depression ripple, side rib, upward solid bent extension parallel to the peak, knurled region, bent teeth, each having a depth, a bump, and a combination thereof.
18. A spring fastener as defined in claim 16 , wherein at least one of the side-cuts has at a triangular shape.
19. A spring fastener as defined in claim 16 , wherein at least one of the side cuts are aligned with a peak on at least one of the engagement springs.
20. A spring fastener as defined in claim 16 , wherein at least one of the side cuts includes an upper edge and a lower edge connecting with a spring side of the corresponding engagement spring.
Priority Applications (5)
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US13/476,957 US20130340216A1 (en) | 2006-11-29 | 2012-05-21 | Spring fastener with highly improved lever/angle pulling force |
US14/147,522 US11603050B2 (en) | 2006-11-29 | 2014-01-04 | Spring fastener |
US15/998,605 US11261897B2 (en) | 2003-11-17 | 2018-08-20 | Structural fastener |
US17/182,025 US11815206B2 (en) | 2004-09-16 | 2021-02-22 | Structural fastener |
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US11/564,840 US20070084024A1 (en) | 2003-11-17 | 2006-11-29 | Spring fastener with highly improved lever/angle pulling force |
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US11/564,840 Abandoned US20070084024A1 (en) | 2003-11-17 | 2006-11-29 | Spring fastener with highly improved lever/angle pulling force |
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Cited By (2)
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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US11603873B2 (en) * | 2020-09-30 | 2023-03-14 | A. Raymond Et Cie | Heavy duty fastening assembly with installation verification |
US11420571B1 (en) | 2021-02-25 | 2022-08-23 | A. Raymond Et Cie | Serviceable edge clip assembly |
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Citations (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2198186A (en) * | 1937-07-09 | 1940-04-23 | Tinnerman Products Inc | Clip for moldings and the like |
US2322656A (en) * | 1941-12-09 | 1943-06-22 | United Carr Fastener Corp | Snap fastener for trimming and like strips |
US2329688A (en) * | 1942-02-14 | 1943-09-21 | United Carr Fastener Corp | Snap fastener and trim strip and the like |
US2424757A (en) * | 1945-06-06 | 1947-07-29 | Jr Ferdinand Klumpp | Self-locking bushing |
US2542833A (en) * | 1946-09-13 | 1951-02-20 | Richard W Page | Dental engine control |
US2607971A (en) * | 1947-02-05 | 1952-08-26 | United Carr Fastener Corp | Panel fastener device |
US2825948A (en) * | 1953-01-21 | 1958-03-11 | United Carr Fastener Corp | Sheet metal fastening device |
US3525129A (en) * | 1963-02-14 | 1970-08-25 | Tinnerman Products Inc | Fasteners |
US3673643A (en) * | 1969-11-19 | 1972-07-04 | Amp Inc | Heat seal retaining clips |
US3673646A (en) * | 1970-12-09 | 1972-07-04 | Ramnas Bruks Ab | Chain hook |
US3864789A (en) * | 1972-06-21 | 1975-02-11 | Kajetan Leitner | Spring clips |
US3977048A (en) * | 1975-09-15 | 1975-08-31 | Usm Corporation | Molding clips |
US4043579A (en) * | 1975-04-28 | 1977-08-23 | Usm Corporation | Elastomeric bumper securing press fit clip |
US4133246A (en) * | 1977-06-09 | 1979-01-09 | General Motors Corporation | Headlamp adjusting nut |
US4245652A (en) * | 1978-10-10 | 1981-01-20 | Hamelly International, Inc. | Device and method for preventing foreign substance migration through an opening in living animal tissue |
US4431355A (en) * | 1980-09-15 | 1984-02-14 | A. Raymond | Fastener for lining panels |
US4595325A (en) * | 1984-09-28 | 1986-06-17 | Eaton Corporation | Self-locking prevailing torque fastener |
US4609170A (en) * | 1982-10-04 | 1986-09-02 | Ludwig Schnabl | Fastening element |
US4630338A (en) * | 1985-12-19 | 1986-12-23 | Usm Corporation | Molding clip |
US4683622A (en) * | 1986-03-06 | 1987-08-04 | Eaton Corporation | Releasable fastener |
US4701984A (en) * | 1982-08-05 | 1987-10-27 | Illinois Tool Works Inc. | Printed circuit board support |
US4712341A (en) * | 1986-08-14 | 1987-12-15 | Ford Motor Company | Modular window assembly clip |
US4792475A (en) * | 1987-10-16 | 1988-12-20 | Chrysler Motors Corporation | Composite joint pad for synthetic resin panel |
US4981310A (en) * | 1988-12-16 | 1991-01-01 | Legris Sa | Device for fixing an element passing through a wall |
US5092550A (en) * | 1987-07-23 | 1992-03-03 | Maclean-Fogg Company | Leveling apparatus |
US5095592A (en) * | 1991-03-13 | 1992-03-17 | Asc Colamco Corporation | Fastener device for composite materials |
US5129768A (en) * | 1992-01-08 | 1992-07-14 | Illinois Tool Works Inc. | Sliding grommet |
US5367751A (en) * | 1993-04-30 | 1994-11-29 | Chrysler Corporation | Panel locator and attachment apparatus |
US5373611A (en) * | 1992-05-26 | 1994-12-20 | Nifco Inc. | Clip |
US5422789A (en) * | 1992-11-04 | 1995-06-06 | Redpoint Thermalloy Limited | Printed circuit board component mounting device |
US5542158A (en) * | 1994-09-12 | 1996-08-06 | Emhart Inc. | Grommet fastener assembly for automobiles |
US5887319A (en) * | 1996-10-07 | 1999-03-30 | Smith; Edward John | Self adjusting spring fastener |
US5919019A (en) * | 1998-01-20 | 1999-07-06 | California Industrial Products, Inc. | Mid-panel nut |
US5987714A (en) * | 1996-10-07 | 1999-11-23 | Smith; Edward John | Spring fastener of high sealing performance |
US6074150A (en) * | 1998-02-12 | 2000-06-13 | Piolax Inc. | Part mounting structure |
US6141837A (en) * | 1999-02-26 | 2000-11-07 | Wisniewski; David M. | EDIAS clip for securing an interior molding to a vehicle frame |
US6203240B1 (en) * | 1995-09-19 | 2001-03-20 | Daiwa Kogyo Kabushiki | Component retaining legs |
US6353981B1 (en) * | 1999-02-25 | 2002-03-12 | Termax Corporation | Multi-engagement spring fastener |
US6381811B2 (en) * | 2000-04-26 | 2002-05-07 | Termax Corporation | Sealing spring fastener with hermetically closed cavity |
US6606766B2 (en) * | 2001-02-01 | 2003-08-19 | Han Il E Hwa Co., Ltd. | Clip for mounting article |
US7086125B2 (en) * | 2004-04-23 | 2006-08-08 | Newfrey Llc | Multiple stage assembly assist fastener |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2542883A (en) | 1948-08-12 | 1951-02-20 | Tinnerman Products Inc | Fastening device |
FR1411180A (en) * | 1964-08-05 | 1965-09-17 | Anciens Ets Bac | Improvements to blind nuts and the like |
US4609172A (en) * | 1983-06-13 | 1986-09-02 | Dorner Steven C | Shelf bracket and cooperable locking bracket retainer |
US4644612A (en) * | 1986-05-30 | 1987-02-24 | Usm Corporation | Panel retainer |
US5759004A (en) * | 1993-04-20 | 1998-06-02 | Panduit Corp. | MLT bent leg pushmount |
CA2259231A1 (en) * | 1997-04-22 | 1998-10-29 | Irausa Ingenieria, S.A. | System for fixing accessories to panels and/or self-carrier elements for the internal lining of vehicles |
US6071150A (en) * | 1997-07-31 | 2000-06-06 | Hon Hai Precision Ind. Co., Ltd. | Extender for use with computer internal structure |
KR20010059692A (en) * | 1999-12-30 | 2001-07-06 | 이계안 | Modular clip |
US6718599B2 (en) * | 2001-06-25 | 2004-04-13 | Termax Corporation | Spring fastener with ergonomically balanced removal to insertion force ratio |
-
2004
- 2004-09-16 US US10/942,634 patent/US7188392B2/en active Active
-
2006
- 2006-11-29 US US11/564,840 patent/US20070084024A1/en not_active Abandoned
Patent Citations (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2198186A (en) * | 1937-07-09 | 1940-04-23 | Tinnerman Products Inc | Clip for moldings and the like |
US2322656A (en) * | 1941-12-09 | 1943-06-22 | United Carr Fastener Corp | Snap fastener for trimming and like strips |
US2329688A (en) * | 1942-02-14 | 1943-09-21 | United Carr Fastener Corp | Snap fastener and trim strip and the like |
US2424757A (en) * | 1945-06-06 | 1947-07-29 | Jr Ferdinand Klumpp | Self-locking bushing |
US2542833A (en) * | 1946-09-13 | 1951-02-20 | Richard W Page | Dental engine control |
US2607971A (en) * | 1947-02-05 | 1952-08-26 | United Carr Fastener Corp | Panel fastener device |
US2825948A (en) * | 1953-01-21 | 1958-03-11 | United Carr Fastener Corp | Sheet metal fastening device |
US3525129A (en) * | 1963-02-14 | 1970-08-25 | Tinnerman Products Inc | Fasteners |
US3673643A (en) * | 1969-11-19 | 1972-07-04 | Amp Inc | Heat seal retaining clips |
US3673646A (en) * | 1970-12-09 | 1972-07-04 | Ramnas Bruks Ab | Chain hook |
US3864789A (en) * | 1972-06-21 | 1975-02-11 | Kajetan Leitner | Spring clips |
US4043579A (en) * | 1975-04-28 | 1977-08-23 | Usm Corporation | Elastomeric bumper securing press fit clip |
US3977048A (en) * | 1975-09-15 | 1975-08-31 | Usm Corporation | Molding clips |
US4133246A (en) * | 1977-06-09 | 1979-01-09 | General Motors Corporation | Headlamp adjusting nut |
US4245652A (en) * | 1978-10-10 | 1981-01-20 | Hamelly International, Inc. | Device and method for preventing foreign substance migration through an opening in living animal tissue |
US4431355A (en) * | 1980-09-15 | 1984-02-14 | A. Raymond | Fastener for lining panels |
US4701984A (en) * | 1982-08-05 | 1987-10-27 | Illinois Tool Works Inc. | Printed circuit board support |
US4609170A (en) * | 1982-10-04 | 1986-09-02 | Ludwig Schnabl | Fastening element |
US4595325A (en) * | 1984-09-28 | 1986-06-17 | Eaton Corporation | Self-locking prevailing torque fastener |
US4630338A (en) * | 1985-12-19 | 1986-12-23 | Usm Corporation | Molding clip |
US4683622A (en) * | 1986-03-06 | 1987-08-04 | Eaton Corporation | Releasable fastener |
US4712341A (en) * | 1986-08-14 | 1987-12-15 | Ford Motor Company | Modular window assembly clip |
US5092550A (en) * | 1987-07-23 | 1992-03-03 | Maclean-Fogg Company | Leveling apparatus |
US4792475A (en) * | 1987-10-16 | 1988-12-20 | Chrysler Motors Corporation | Composite joint pad for synthetic resin panel |
US4981310A (en) * | 1988-12-16 | 1991-01-01 | Legris Sa | Device for fixing an element passing through a wall |
US5095592A (en) * | 1991-03-13 | 1992-03-17 | Asc Colamco Corporation | Fastener device for composite materials |
US5129768A (en) * | 1992-01-08 | 1992-07-14 | Illinois Tool Works Inc. | Sliding grommet |
US5373611A (en) * | 1992-05-26 | 1994-12-20 | Nifco Inc. | Clip |
US5422789A (en) * | 1992-11-04 | 1995-06-06 | Redpoint Thermalloy Limited | Printed circuit board component mounting device |
US5367751A (en) * | 1993-04-30 | 1994-11-29 | Chrysler Corporation | Panel locator and attachment apparatus |
US5542158A (en) * | 1994-09-12 | 1996-08-06 | Emhart Inc. | Grommet fastener assembly for automobiles |
US6203240B1 (en) * | 1995-09-19 | 2001-03-20 | Daiwa Kogyo Kabushiki | Component retaining legs |
US5887319A (en) * | 1996-10-07 | 1999-03-30 | Smith; Edward John | Self adjusting spring fastener |
US5987714A (en) * | 1996-10-07 | 1999-11-23 | Smith; Edward John | Spring fastener of high sealing performance |
US5919019A (en) * | 1998-01-20 | 1999-07-06 | California Industrial Products, Inc. | Mid-panel nut |
US6074150A (en) * | 1998-02-12 | 2000-06-13 | Piolax Inc. | Part mounting structure |
US6353981B1 (en) * | 1999-02-25 | 2002-03-12 | Termax Corporation | Multi-engagement spring fastener |
US6141837A (en) * | 1999-02-26 | 2000-11-07 | Wisniewski; David M. | EDIAS clip for securing an interior molding to a vehicle frame |
US6381811B2 (en) * | 2000-04-26 | 2002-05-07 | Termax Corporation | Sealing spring fastener with hermetically closed cavity |
US6606766B2 (en) * | 2001-02-01 | 2003-08-19 | Han Il E Hwa Co., Ltd. | Clip for mounting article |
US7086125B2 (en) * | 2004-04-23 | 2006-08-08 | Newfrey Llc | Multiple stage assembly assist fastener |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130287521A1 (en) * | 2012-04-27 | 2013-10-31 | Newfrey Llc | High retention fastener |
US8800120B2 (en) * | 2012-04-27 | 2014-08-12 | Newfrey Llc | High retention fastener |
USD944632S1 (en) * | 2019-10-17 | 2022-03-01 | A. Raymond Et Cie | Edge clip |
Also Published As
Publication number | Publication date |
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US20050105987A1 (en) | 2005-05-19 |
US7188392B2 (en) | 2007-03-13 |
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Owner name: TERMAX CORPORATION, ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DICKENSON, DANIEL JAMES;SMITH, MICHAEL W.;FLEYDERVISH, MARK;AND OTHERS;REEL/FRAME:018932/0841 Effective date: 20040720 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |