US20150300041A1 - Railing assembly with interference fit-based coupling - Google Patents
Railing assembly with interference fit-based coupling Download PDFInfo
- Publication number
- US20150300041A1 US20150300041A1 US14/671,450 US201514671450A US2015300041A1 US 20150300041 A1 US20150300041 A1 US 20150300041A1 US 201514671450 A US201514671450 A US 201514671450A US 2015300041 A1 US2015300041 A1 US 2015300041A1
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- US
- United States
- Prior art keywords
- rail
- picket
- engaging members
- clip
- railing assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/006—Caps or covers for posts
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- E04H17/1421—
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/1413—Post-and-rail fences, e.g. without vertical cross-members
- E04H17/1417—Post-and-rail fences, e.g. without vertical cross-members with vertical cross-members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/1413—Post-and-rail fences, e.g. without vertical cross-members
- E04H17/1417—Post-and-rail fences, e.g. without vertical cross-members with vertical cross-members
- E04H17/1426—Picket fences
- E04H17/1439—Picket fences with separate pickets going through the horizontal members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/1413—Post-and-rail fences, e.g. without vertical cross-members
- E04H17/1447—Details of connections between rails and posts
- E04H17/1452—Details of connections between rails and posts the ends of the rails are fixed on the lateral sides of the posts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/1413—Post-and-rail fences, e.g. without vertical cross-members
- E04H17/1447—Details of connections between rails and posts
- E04H17/1488—Brackets for connections between rails and posts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/20—Posts therefor
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- E04H2017/1447—
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- E04H2017/1465—
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- E04H2017/1469—
Definitions
- Railing and fence assemblies can include combinations of vertical posts, horizontal rails (e.g., top and bottom rails), and vertical pickets. Horizontal rails can extend between the posts with vertical pickets that can be mounted between the posts, secured by the rails.
- supporting hardware e.g., screws, brackets, fasteners, nails, etc.
- the amount of supporting hardware necessary to install a railing assembly can be substantial. The use of a substantial amount of supporting hardware increases the difficulty in assembling the railings and fences, often making the assembly frustrating and time-consuming.
- railing and fence assemblies and methods for assembling railings and fences requiring minimal supporting hardware are desirable that are more efficient to assemble and less expensive to manufacture and/or purchase.
- One aspect relates to a railing assembly in which a rail is coupled to one or more pickets using an interference fit.
- the interference fit is achieved by engaging members in the rail that secure the rail to each picket after each picket is inserted in a passage in the rail.
- the railing assembly may also include a second rail having engaging members configured to couple the second rail with the opposing end of each picket using an interference fit.
- One or both of the rails may further include a clip having one or more openings, each opening configured to allow a picket to pass through prior to coupling with the rail.
- the railing assembly may further include one or more posts.
- Another aspect relates to a method for assembling an interference-fit based railing assembly.
- the method includes coupling a rail having engaging members to one or more pickets, wherein the one or more pickets is coupled to the railing using an interference fit.
- FIG. 1 is a cutaway end view of a railing assembly according to one aspect.
- FIG. 2 is a cutaway end view of a top rail of a railing assembly according to one aspect.
- FIG. 3 is a cutaway end view of a top rail of a railing assembly according to one aspect.
- FIG. 4 is a cutaway end view of a top rail of a railing assembly according to one aspect.
- FIG. 5 is a cutaway end view of a bottom rail of a railing assembly according to one aspect.
- FIG. 6 is a perspective view of a top rail of a railing assembly according to one aspect.
- FIG. 7 is a perspective view of a bottom rail of a railing assembly according to one aspect.
- FIG. 8 is a perspective view of a rail clip according to one aspect.
- FIG. 9 is a diagram of a post of a railing assembly according to one aspect.
- FIG. 10 is a diagram of a rail bracket according to one aspect.
- FIG. 11 is a diagram of a rail bracket according to one aspect.
- FIG. 12 is a diagram of a post cap according to one aspect.
- FIG. 13 is a diagram of a post base according to one aspect.
- FIG. 14 is an exploded view of an example of a railing assembly according to an aspect.
- FIG. 15 is a perspective view of a railing assembly according to an aspect.
- FIG. 16A is a side view of a rail according to an aspect.
- FIG. 16B is a perspective view of a rail according to an aspect.
- FIG. 17 is a cutaway end view of a railing assembly according to an aspect.
- the present disclosure relates to an interference fit-based interlocking fencing and railing assembly.
- fencing assembly and railing assembly may be used interchangeably.
- the railing assembly includes components that can interlock via an interference fit to create a rigid and secure assembly without the use of supporting hardware (screws, brackets, fasteners, nails, etc.).
- An interference fit also known as a press fit or friction fit, can include coupling two components together using a retaining force (e.g., friction).
- a retaining force e.g., friction
- metal components e.g., extruded aluminum
- the force that retains the parts together may be greatly increased by one components compressing against another.
- Other component materials, such as plastics may also be used.
- An interference fit can be achieved by shaping complementary mating components so that one component (or both) slightly bends or is compressed when joined together. The interference fit of the components can allow the railing assembly to be easy to assemble yet durable and difficult to disassemble unintentionally.
- a “bottom” portion of the railing assembly can refer to a portion of the railing assembly that is closest to the ground, that is farthest away from the ground, or that is parallel to the ground and on substantially the same plane with respect to the ground as a “top” portion in connection with a horizontal orientation.
- a “top” portion and a “bottom” portion can be a first end portion and a second, opposing end portion of a railing assembly.
- FIG. 1 is a cut-away end view of a railing assembly 100 according to one aspect.
- the railing assembly 100 includes a top rail 102 and a bottom rail 104 coupled by an interference fit to opposing ends of a picket 106 .
- the top rail 102 includes engaging members 108 a, 108 b configured to couple the top rail 102 to the picket 106 using an interference fit with one end of the picket 106 .
- the bottom rail 104 includes engaging members 110 a, 110 b configured to couple the bottom rail 104 to the picket 106 using an interference fit with the opposing end of the picket 106 .
- the engaging members 108 a, 108 b and 110 a, 110 b can each be spaced, shaped, and provided resiliency to apply a restraining force against the picket 106 when the picket 106 is between the respective engaging members 108 a, 108 b and 110 a, 110 b.
- the top rail 102 and the bottom rail 104 can be coupled using the picket 106 using an interference fit without the need for supporting hardware.
- the picket 106 can include a substantially hollow structure defined by four, equal-width sidewalls oriented at right angles.
- the picket 106 can include a square-shaped extruded aluminum tube.
- the picket 106 is forcibly slid between the engaging members 108 a, 108 b and 110 a, 110 b to couple the top rail 102 and the bottom rail 104 to the picket 106 .
- Railing assemblies according to other examples may include a top rail or a bottom rail (but not both) that can couple to a picket using an interference fit.
- the top rail 102 is shown in greater detail in FIG. 2 .
- the top rail 102 includes a top cap 202 that forms the upper surfaces of the top rail 102 .
- the top rail 102 may also include a top clip 204 .
- the top rail 102 may include engaging members 108 a, 108 b.
- the engaging members 108 a, 108 b are positioned to define a passage 206 sized to receive a picket.
- the passage 206 defined by the engaging members 108 a, 108 b may be tapered such that increasing force is applied to the picket as it enters the passage.
- the engaging members 108 a, 108 b may have thicker ends.
- the thicker ends of the engaging members 108 a, 108 b may be shaped to provide additional force to the picket once it enters the passage.
- FIGS. 1 and 2 illustrate engaging members having bulbous ends that provide additional force to the picket 106 in passage 206 .
- the engaging members 108 a, 108 b can be shaped to define channels 208 a, 208 b for coupling with the top clip 204 .
- the top clip 204 may include clip tabs 210 a, 210 b that can be slidably received by the channels 208 a, 208 b, respectively, for coupling the top clip 204 to the top rail 102 .
- the clip tabs 210 a, 210 b can be prevented from decoupling from the top rail 102 after being slidably received by the channels 208 a, 208 b.
- the top clip 204 is slidably received by the top rail 102 by horizontally sliding the top clip 204 into the channels 208 a, 208 b at a first end of the top rail 102 until the top clip 204 reaches a second end of the top rail 102 .
- This may, alternatively, be accomplished by vertically sliding the clip tabs 210 a, 210 b into the channels 208 a, 208 b, respectively, starting from the bottom end of the top rail 102 (e.g., the end of the top rail 102 opposite the top cap 202 ).
- Coupling of the top clip 204 to the top rail 102 may require the application of force using a tool (e.g., a mallet).
- the top clip 204 can include an opening 212 sized for allowing a picket to pass through the opening 212 and into the passage 206 .
- the top rail 102 may also include a bracing member 214 that can provide additional rigidity to the top rail 102 and prevent a picket from progressing beyond the bracing member 214 when the picket is inserted into the passage 206 .
- the top cap 202 of the top rail 102 can be decorative or ergonomic, depending upon the application of the railing assembly (e.g., fence, railing for stairs, etc.).
- the style of a top cap can be independent of the structure and spacing of the engaging members 108 a, 108 b, the passage 206 , and the channels 208 a, 208 b.
- the top cap 202 is shaped in a “Dixie” style.
- FIG. 3 depicts an example of a top rail 302 having a top cap 304 that is a “Round” style.
- FIG. 4 depicts an example of a top rail 402 with a top cap 404 that is a “Mailbox” style.
- FIG. 5 shows the bottom rail 104 of FIG. 1 in greater detail.
- the bottom rail 104 includes a bottom cap 504 that forms the outer surfaces of the bottom rail 104 .
- the bottom rail may also include engaging members 110 a, 110 b positioned to define a passage 506 sized to receive a picket.
- the engaging members 110 a, 110 b may also be shaped to define channels 508 a, 508 b for coupling with a bottom clip 504 .
- the bottom clip 504 may include clip tabs 510 a, 510 b that can be slidably received by the channels 508 a, 508 b, respectively, for coupling the bottom clip 504 to the bottom rail 104 .
- the bottom clip 504 can also include an opening 512 sized for allowing a picket to pass through the opening 512 and into passage 506 .
- the movement of the picket can be substantially restricted by friction applied using an interference fit from the engaging members 110 .
- the bottom cap 502 of the bottom rail 104 can be decorative or ergonomic, depending upon the application of or surface for the railing assembly.
- the style of a bottom cap can be independent of the structure and spacing of the engaging members 110 a, 110 b, the passage 506 , and the channels 508 a, 508 b.
- the railing assembly may include more than one picket.
- the top rail or bottom rail may be coupled to each picket using engaging members configured to couple the rail(s) to the pickets using an interference fit for each picket.
- FIGS. 6 and 7 show a perspective view of the top rail 102 and bottom rail 104 , respectively.
- the cross-sectional shape of the top rail 102 and bottom rail 104 can be any desirable length.
- a die can be used to extrude the rail material to a predetermined length.
- the rails can be manufactured in a standard length, e.g., ten feet, and can later be reduced in length at an on-site location for custom installation.
- each picket may be arranged in parallel with the others and perpendicular to the top rail.
- the engaging members 108 a, 108 b of the top rail 102 (and the passage 206 ) extend along the predetermined length of the top rail 102 and are configured to couple the top rail to each picket using an interference fit.
- the arrangement of the pickets relative to each other and to the top rail may vary.
- each picket may be arranged in parallel with other pickets, but each picket may be coupled to the top rail using an interference fit at an angle corresponding to the slope of the staircase.
- the pickets may be arranged perpendicular to the surface rather than parallel to the other pickets.
- FIG. 8 shows a perspective view of a clip for a railing assembly.
- the clip may be used as a top clip 204 or as a bottom clip 504 .
- the clip 204 / 504 includes multiple openings 212 / 512 , each opening configured to allow a picket to pass through.
- the rail 102 / 104 may be coupled to a picket by passing the picket through the opening 212 / 512 in the clip 204 / 504 and passing the picket through the passage 206 / 506 .
- Use of a clip in the railing assembly may provide enhanced stability to the assembly. Further, the clip allows for easier installation of the railing assembly as the spacing between the pickets is pre-defined by the openings in the clip.
- FIG. 9 shows a post 900 that may be included in some aspects of a railing assembly.
- the post 900 may be located at a first end of a rail, at a second end of a rail, or at both ends of a rail.
- the post 900 may be made of the same material as the pickets of the railing assembly and may be similar in shape to the pickets, though may have thicker sidewalls and a greater diameter (or cross-section) and length than the pickets.
- one or both ends of the post 900 may be configured to be coupled to a rail using an interface fit.
- the diameter or cross-section of the end(s) of the post may be of a different diameter or cross-section than the other portions of the post.
- the post of a railing assembly may have one or both ends identical in shape and size to the pickets of a railing assembly, but the remainder of the post may have a greater diameter (or cross-section), as illustrated by post 1514 b in FIG. 15 .
- the end of the post may be slidably received by the top rail.
- FIGS. 10 and 11 show rail brackets 1000 and 1100 .
- Rail brackets may provide support for the rails in a railing assembly and, further, provide enhanced stability for the railing assembly.
- a rail may include a rail bracket 1000 / 1100 coupled to one or both ends of the rail.
- the rail bracket may include a mating portion 1002 / 1102 and a back portion 1004 / 1104 .
- the mating portion 1002 / 1102 may be configured to join with the end of a rail.
- the mating portion 1002 / 1102 may be slidably connected, adhered, or fastened to the end of a rail.
- the back portion 1004 / 1104 may be configured to serve as a stopper for a rail joined to the mating portion 1002 / 1102 .
- the side of the back portion 1004 / 1104 opposite the mating portion 1002 / 1102 may be left bare or may be connected, adhered, or fastened to a post or to a fixture to which the railing assembly is joined (e.g., a wall).
- the mating portion 1002 of rail bracket 1000 is shaped in the “Dixie” style complementary to the “Dixie” style of the top cap 202 of the top rail 102 such that the rail bracket 1000 may be slidably connected, adhered, or fastened to the end of the top rail 102 .
- FIG. 11 shows a rail bracket 1100 configured to couple to the end of bottom rail 104 .
- the mating portion 1102 of rail bracket 1100 is shaped such that the rail bracket 1000 may be slidably connected, adhered, or fastened to the end of the bottom rail 104 .
- FIG. 12 shows one aspect of a post cap 1200 that may be included on a post 900 .
- the post cap 1200 may be used to cover the top end of a post and may be configured in a number of shapes.
- the post cap 1200 includes sidewalls 1202 forming a square shape and includes a pyramid-shaped upper portion 1204 connected to the sidewalls 1202 .
- the post cap 1200 can prevent rainwater or other items from entering inner portions a hollow post 900 .
- the post cap 1200 may be shaped such that the post cap 1200 may be slidably connected, adhered, or fastened to the top end of a post 900 .
- FIG. 13 shows one aspect of a post base 1300 for coupling to a post 900 .
- the post base includes post base engaging members 1302 a, 1302 b and a bottom portion 1304 .
- the post base 1300 can be used to mount or affix a post to another surface, such as the ground or a concrete slab.
- the post base engaging members 1302 a, 1302 b may be positioned and shaped such that the post base 1300 may be slidably connected, adhered, or fastened to the bottom end of a post 900 .
- the post base engaging members 1302 a, 1302 b may be positioned and shaped such that the post base 1300 may be coupled to the bottom end of a post 900 using an interference fit.
- the bottom portion 1304 may be shaped complementary to shape of a post 900 such that the post base 1300 may cover the bottom of the post 900 .
- the bottom portion 1304 may be sized such that a post 900 coupled to the post base 1300 may stand vertically without supporting components.
- FIG. 14 shows an exploded (or disassembled) view of a railing assembly 1400 according to one aspect.
- the railing assembly 1400 includes a top rail 1402 , a bottom rail 1404 , multiple pickets 1406 , a top clip 1408 a having openings (not shown), a bottom clip 1408 b having openings (not shown), and two posts 1410 , each having post brackets 1412 a, 1412 b for the top rail 1402 and bottom rail 1404 , a post cap 1414 , and a post base 1416 .
- Assembling the components of a railing assembly may be accomplished in any order.
- FIG. 15 shows a perspective view of an assembled railing assembly 1500 according to another aspect.
- the railing assembly 1500 includes a top rail 1502 , two bottom rails 1504 a, 1508 b, multiple pickets 1506 , a top clip 1508 a, two bottom clips 1508 a, 1508 b, and three posts 1510 a - c , each having post brackets 1512 a - e for the bottom rails and a post base 1514 a - c.
- the interference fit used to couple the top rail 102 or bottom rail 104 to a picket may be reinforced by a mechanical locking feature.
- FIGS. 16A and 16B show a picket 1600 having slots 1602 .
- the slots 1602 may be grooved into opposing surfaces of the picket 1600 and may be positionable to align with the engaging members 108 a, 108 b of the top rail 102 when the top rail 102 is coupled to the picket 1600 or with the engaging members 110 a, 110 b of the bottom rail 104 when the bottom rail 104 is coupled to the picket 1600 .
- FIG. 17 shows a cutaway view of the top rail 102 coupled to the picket 1600 .
- the movement of the picket 1600 may be substantially restricted by friction applied using an interference fit from the engaging members 108 a, 108 b.
- movement of the picket 1600 may be further restricted by aligning the slots 1602 of the picket 1600 such that the engaging member 108 a of the top rail 102 is aligned with slot 1602 a of the picket 1600 and engaging member 108 b of the top rail 102 is aligned with slot 1602 b of the picket 1600 .
- the engaging members 108 a , 108 b can be provided resiliency to apply a restraining force against the picket 1600 to mechanically lock the engaging members 108 a, 108 b into the slots 1602 of the picket 1600 .
Abstract
A railing assembly includes a rail and one or more pickets. The top rail includes engagement members configured to couple the rail to each of the pickets using an interference fit. In certain aspects, the railing assembly may also include a second rail with engagement members configured to couple the second rail to each of the pickets using an interference fit. A method for installing a railing assembly includes providing a rail and a picket and inserting the picket into a passage in the rail such that the engaging members of the rail couple the rail to the picket using an interference fit.
Description
- This claims priority to U.S. Provisional Application Ser. No. 61/980,171, filed Apr. 16, 2014 and titled “Interference Fit-Based Fence System,” the contents of which are incorporated herein by reference.
- Railing and fence assemblies can include combinations of vertical posts, horizontal rails (e.g., top and bottom rails), and vertical pickets. Horizontal rails can extend between the posts with vertical pickets that can be mounted between the posts, secured by the rails. In such assemblies, supporting hardware (e.g., screws, brackets, fasteners, nails, etc.) is often used to secure the rails to each picket in the railing assembly. Depending on the number of pickets in the railing assembly, the amount of supporting hardware necessary to install a railing assembly can be substantial. The use of a substantial amount of supporting hardware increases the difficulty in assembling the railings and fences, often making the assembly frustrating and time-consuming. Further, the requisite inclusion of supporting hardware in railing and fence assemblies increases the costs of such assemblies. Accordingly, railing and fence assemblies, and methods for assembling railings and fences requiring minimal supporting hardware are desirable that are more efficient to assemble and less expensive to manufacture and/or purchase.
- One aspect relates to a railing assembly in which a rail is coupled to one or more pickets using an interference fit. The interference fit is achieved by engaging members in the rail that secure the rail to each picket after each picket is inserted in a passage in the rail. The railing assembly may also include a second rail having engaging members configured to couple the second rail with the opposing end of each picket using an interference fit. One or both of the rails may further include a clip having one or more openings, each opening configured to allow a picket to pass through prior to coupling with the rail. The railing assembly may further include one or more posts.
- Another aspect relates to a method for assembling an interference-fit based railing assembly. The method includes coupling a rail having engaging members to one or more pickets, wherein the one or more pickets is coupled to the railing using an interference fit.
- These illustrative aspects are not mentioned to limit or define the invention, but to provide examples to aid understanding of the inventive concepts disclosed herein. Other features and aspects will become apparent upon review of the entire disclosure.
-
FIG. 1 is a cutaway end view of a railing assembly according to one aspect. -
FIG. 2 is a cutaway end view of a top rail of a railing assembly according to one aspect. -
FIG. 3 is a cutaway end view of a top rail of a railing assembly according to one aspect. -
FIG. 4 is a cutaway end view of a top rail of a railing assembly according to one aspect. -
FIG. 5 is a cutaway end view of a bottom rail of a railing assembly according to one aspect. -
FIG. 6 is a perspective view of a top rail of a railing assembly according to one aspect. -
FIG. 7 is a perspective view of a bottom rail of a railing assembly according to one aspect. -
FIG. 8 is a perspective view of a rail clip according to one aspect. -
FIG. 9 is a diagram of a post of a railing assembly according to one aspect. -
FIG. 10 is a diagram of a rail bracket according to one aspect. -
FIG. 11 is a diagram of a rail bracket according to one aspect. -
FIG. 12 is a diagram of a post cap according to one aspect. -
FIG. 13 is a diagram of a post base according to one aspect. -
FIG. 14 is an exploded view of an example of a railing assembly according to an aspect. -
FIG. 15 is a perspective view of a railing assembly according to an aspect. -
FIG. 16A is a side view of a rail according to an aspect. -
FIG. 16B is a perspective view of a rail according to an aspect. -
FIG. 17 is a cutaway end view of a railing assembly according to an aspect. - The present disclosure relates to an interference fit-based interlocking fencing and railing assembly. For purposes of the present disclosure, fencing assembly and railing assembly may be used interchangeably. The railing assembly includes components that can interlock via an interference fit to create a rigid and secure assembly without the use of supporting hardware (screws, brackets, fasteners, nails, etc.). An interference fit, also known as a press fit or friction fit, can include coupling two components together using a retaining force (e.g., friction). For some metal components (e.g., extruded aluminum), the force that retains the parts together may be greatly increased by one components compressing against another. Other component materials, such as plastics, may also be used. An interference fit can be achieved by shaping complementary mating components so that one component (or both) slightly bends or is compressed when joined together. The interference fit of the components can allow the railing assembly to be easy to assemble yet durable and difficult to disassemble unintentionally.
- The directional terms used in this disclosure (e.g., top, bottom, vertical, horizontal, etc.) are for simplicity of discussion to refer to examples of orientations of the railing assembly or components thereof. The terms are not used to limit the railing assembly or its components to any particular orientation. For example, a “bottom” portion of the railing assembly can refer to a portion of the railing assembly that is closest to the ground, that is farthest away from the ground, or that is parallel to the ground and on substantially the same plane with respect to the ground as a “top” portion in connection with a horizontal orientation. Generally, a “top” portion and a “bottom” portion can be a first end portion and a second, opposing end portion of a railing assembly.
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FIG. 1 is a cut-away end view of arailing assembly 100 according to one aspect. Therailing assembly 100 includes atop rail 102 and abottom rail 104 coupled by an interference fit to opposing ends of apicket 106. Thetop rail 102 includesengaging members top rail 102 to thepicket 106 using an interference fit with one end of thepicket 106. Thebottom rail 104 includesengaging members bottom rail 104 to thepicket 106 using an interference fit with the opposing end of thepicket 106. Theengaging members picket 106 when thepicket 106 is between the respectiveengaging members top rail 102 and thebottom rail 104 can be coupled using thepicket 106 using an interference fit without the need for supporting hardware. Thepicket 106 can include a substantially hollow structure defined by four, equal-width sidewalls oriented at right angles. For example, thepicket 106 can include a square-shaped extruded aluminum tube. In some aspects, thepicket 106 is forcibly slid between theengaging members top rail 102 and thebottom rail 104 to thepicket 106. Railing assemblies according to other examples may include a top rail or a bottom rail (but not both) that can couple to a picket using an interference fit. - The
top rail 102 is shown in greater detail inFIG. 2 . Thetop rail 102 includes atop cap 202 that forms the upper surfaces of thetop rail 102. Thetop rail 102 may also include atop clip 204. As described inFIG. 1 , thetop rail 102 may include engagingmembers members passage 206 sized to receive a picket. Thepassage 206 defined by the engagingmembers members members FIGS. 1 and 2 illustrate engaging members having bulbous ends that provide additional force to thepicket 106 inpassage 206. - The engaging
members channels top clip 204. Thetop clip 204 may includeclip tabs channels top clip 204 to thetop rail 102. Theclip tabs top rail 102 after being slidably received by thechannels - In one example of coupling the
top clip 204 to thetop rail 102, thetop clip 204 is slidably received by thetop rail 102 by horizontally sliding thetop clip 204 into thechannels top rail 102 until thetop clip 204 reaches a second end of thetop rail 102. This may, alternatively, be accomplished by vertically sliding theclip tabs channels top rail 102 opposite the top cap 202). Coupling of thetop clip 204 to thetop rail 102 may require the application of force using a tool (e.g., a mallet). - The
top clip 204 can include anopening 212 sized for allowing a picket to pass through theopening 212 and into thepassage 206. When inserted into the passage, the movement of the picket can be substantially restricted by friction applied using an interference fit from the engagingmembers top rail 102 may also include a bracingmember 214 that can provide additional rigidity to thetop rail 102 and prevent a picket from progressing beyond the bracingmember 214 when the picket is inserted into thepassage 206. - The
top cap 202 of thetop rail 102 can be decorative or ergonomic, depending upon the application of the railing assembly (e.g., fence, railing for stairs, etc.). The style of a top cap can be independent of the structure and spacing of the engagingmembers passage 206, and thechannels FIG. 2 , thetop cap 202 is shaped in a “Dixie” style. There are other styles that can be used.FIG. 3 depicts an example of atop rail 302 having atop cap 304 that is a “Round” style.FIG. 4 depicts an example of atop rail 402 with atop cap 404 that is a “Mailbox” style. -
FIG. 5 shows thebottom rail 104 ofFIG. 1 in greater detail. Thebottom rail 104 includes abottom cap 504 that forms the outer surfaces of thebottom rail 104. - The bottom rail may also include engaging
members passage 506 sized to receive a picket. The engagingmembers channels bottom clip 504. Thebottom clip 504 may includeclip tabs channels bottom clip 504 to thebottom rail 104. Theclip tabs bottom rail 104 after being slidably received by thechannels bottom clip 504 to thebottom rail 104 may be accomplished in a manner similar to the coupling of thetop clip 204 to thetop rail 102. - The
bottom clip 504 can also include anopening 512 sized for allowing a picket to pass through theopening 512 and intopassage 506. When inserted into the passage, the movement of the picket can be substantially restricted by friction applied using an interference fit from the engagingmembers 110. Like thetop cap 202 of thetop rail 102, thebottom cap 502 of thebottom rail 104 can be decorative or ergonomic, depending upon the application of or surface for the railing assembly. The style of a bottom cap can be independent of the structure and spacing of the engagingmembers passage 506, and thechannels - In certain aspects, the railing assembly may include more than one picket. In such aspects, the top rail or bottom rail (or both) may be coupled to each picket using engaging members configured to couple the rail(s) to the pickets using an interference fit for each picket.
-
FIGS. 6 and 7 show a perspective view of thetop rail 102 andbottom rail 104, respectively. The cross-sectional shape of thetop rail 102 andbottom rail 104 can be any desirable length. For example, a die can be used to extrude the rail material to a predetermined length. In one aspect, the rails can be manufactured in a standard length, e.g., ten feet, and can later be reduced in length at an on-site location for custom installation. - In at least one aspect where the railing assembly includes the
top rail 102 coupled to more than one picket, each picket may be arranged in parallel with the others and perpendicular to the top rail. The engagingmembers top rail 102 and are configured to couple the top rail to each picket using an interference fit. Depending upon the application of or surface for the railing assembly, or for other reasons (e.g., the shape of the top rail), the arrangement of the pickets relative to each other and to the top rail may vary. For example, where the railing assembly is used as railings to a staircase, each picket may be arranged in parallel with other pickets, but each picket may be coupled to the top rail using an interference fit at an angle corresponding to the slope of the staircase. In another example, where the railing assembly is a fence used on a curved surface, the pickets may be arranged perpendicular to the surface rather than parallel to the other pickets. -
FIG. 8 shows a perspective view of a clip for a railing assembly. The clip may be used as atop clip 204 or as abottom clip 504. Theclip 204/504 includesmultiple openings 212/512, each opening configured to allow a picket to pass through. Where theclip 204/504 is coupled to thetop rail 102 or thebottom rail 104, therail 102/104 may be coupled to a picket by passing the picket through theopening 212/512 in theclip 204/504 and passing the picket through thepassage 206/506. Use of a clip in the railing assembly may provide enhanced stability to the assembly. Further, the clip allows for easier installation of the railing assembly as the spacing between the pickets is pre-defined by the openings in the clip. -
FIG. 9 shows apost 900 that may be included in some aspects of a railing assembly. Thepost 900 may be located at a first end of a rail, at a second end of a rail, or at both ends of a rail. In some aspects, thepost 900 may be made of the same material as the pickets of the railing assembly and may be similar in shape to the pickets, though may have thicker sidewalls and a greater diameter (or cross-section) and length than the pickets. In some aspects, one or both ends of thepost 900 may be configured to be coupled to a rail using an interface fit. In such aspects, the diameter or cross-section of the end(s) of the post may be of a different diameter or cross-section than the other portions of the post. For example, the post of a railing assembly may have one or both ends identical in shape and size to the pickets of a railing assembly, but the remainder of the post may have a greater diameter (or cross-section), as illustrated bypost 1514 b inFIG. 15 . In this configuration, the end of the post may be slidably received by the top rail. -
FIGS. 10 and 11 show rail brackets rail bracket 1000/1100 coupled to one or both ends of the rail. The rail bracket may include amating portion 1002/1102 and a back portion 1004/1104. Themating portion 1002/1102 may be configured to join with the end of a rail. For example, themating portion 1002/1102 may be slidably connected, adhered, or fastened to the end of a rail. The back portion 1004/1104 may be configured to serve as a stopper for a rail joined to themating portion 1002/1102. The side of the back portion 1004/1104 opposite themating portion 1002/1102 may be left bare or may be connected, adhered, or fastened to a post or to a fixture to which the railing assembly is joined (e.g., a wall). - In
FIG. 10 , themating portion 1002 ofrail bracket 1000 is shaped in the “Dixie” style complementary to the “Dixie” style of thetop cap 202 of thetop rail 102 such that therail bracket 1000 may be slidably connected, adhered, or fastened to the end of thetop rail 102.FIG. 11 shows arail bracket 1100 configured to couple to the end ofbottom rail 104. Themating portion 1102 ofrail bracket 1100 is shaped such that therail bracket 1000 may be slidably connected, adhered, or fastened to the end of thebottom rail 104. -
FIG. 12 shows one aspect of apost cap 1200 that may be included on apost 900. Thepost cap 1200 may be used to cover the top end of a post and may be configured in a number of shapes. In the aspect shown, thepost cap 1200 includes sidewalls 1202 forming a square shape and includes a pyramid-shapedupper portion 1204 connected to thesidewalls 1202. Thepost cap 1200 can prevent rainwater or other items from entering inner portions ahollow post 900. Thepost cap 1200 may be shaped such that thepost cap 1200 may be slidably connected, adhered, or fastened to the top end of apost 900. -
FIG. 13 shows one aspect of apost base 1300 for coupling to apost 900. The post base includes postbase engaging members bottom portion 1304. Thepost base 1300 can be used to mount or affix a post to another surface, such as the ground or a concrete slab. The postbase engaging members post base 1300 may be slidably connected, adhered, or fastened to the bottom end of apost 900. In some aspects, the postbase engaging members post base 1300 may be coupled to the bottom end of apost 900 using an interference fit. Thebottom portion 1304 may be shaped complementary to shape of apost 900 such that thepost base 1300 may cover the bottom of thepost 900. In some aspects, thebottom portion 1304 may be sized such that apost 900 coupled to thepost base 1300 may stand vertically without supporting components. -
FIG. 14 shows an exploded (or disassembled) view of arailing assembly 1400 according to one aspect. In this aspect, therailing assembly 1400 includes atop rail 1402, abottom rail 1404,multiple pickets 1406, atop clip 1408 a having openings (not shown), abottom clip 1408 b having openings (not shown), and two posts 1410, each havingpost brackets top rail 1402 andbottom rail 1404, a post cap 1414, and a post base 1416. Assembling the components of a railing assembly may be accomplished in any order. -
FIG. 15 shows a perspective view of an assembledrailing assembly 1500 according to another aspect. In this aspect, therailing assembly 1500 includes atop rail 1502, twobottom rails multiple pickets 1506, a top clip 1508 a, twobottom clips 1508 a, 1508 b, and three posts 1510 a-c, each having post brackets 1512 a-e for the bottom rails and a post base 1514 a-c. - In some aspects, the interference fit used to couple the
top rail 102 orbottom rail 104 to a picket may be reinforced by a mechanical locking feature. For example,FIGS. 16A and 16B show apicket 1600 havingslots 1602. Theslots 1602 may be grooved into opposing surfaces of thepicket 1600 and may be positionable to align with the engagingmembers top rail 102 when thetop rail 102 is coupled to thepicket 1600 or with the engagingmembers bottom rail 104 when thebottom rail 104 is coupled to thepicket 1600. -
FIG. 17 shows a cutaway view of thetop rail 102 coupled to thepicket 1600. The movement of thepicket 1600 may be substantially restricted by friction applied using an interference fit from the engagingmembers picket 1600 may be further restricted by aligning theslots 1602 of thepicket 1600 such that the engagingmember 108 a of thetop rail 102 is aligned withslot 1602 a of thepicket 1600 and engagingmember 108 b of thetop rail 102 is aligned withslot 1602 b of thepicket 1600. The engagingmembers picket 1600 to mechanically lock the engagingmembers slots 1602 of thepicket 1600. - The foregoing description of the examples, including illustrated examples, of the invention has been presented only for the purpose of illustration and description and is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Numerous modifications, adaptations, and uses thereof can be apparent to those skilled in the art without departing from the scope of this invention. The illustrative examples described above are given to introduce the reader to the general subject matter discussed here and are not intended to limit the scope of the disclosed concepts.
Claims (20)
1. A railing assembly comprising:
engaging members that are oppositely positioned with respect to each other and that are configured to couple a rail to a picket using an interference fit.
2. The railing assembly of claim 1 , further comprising the rail that includes the engaging members and that is coupled to a clip having an opening configured to allow the picket to pass through the opening.
3. The railing assembly of claim 2 , wherein the engaging members are configured to couple the rail to a plurality of pickets using the interference fit, and
wherein the clip includes a plurality of openings configured to allow the plurality of pickets to pass through the plurality of openings.
4. The railing assembly of claim 2 , wherein the engaging members are further configured to receive the clip, the clip further having clip tabs configured to couple the rail to the clip.
5. The railing assembly of claim 1 , wherein the engaging members are configured to couple the rail to the picket independent of any other supporting hardware.
6. The railing assembly of claim 1 , wherein the engaging members are configured to couple the rail to a plurality of pickets using the interference fit, the engaging members being in parallel and extending the length of the rail..
7. The railing assembly of claim 1 , wherein the engaging members are further configured to form a passage for receiving the picket, and wherein the rail includes a bracing member for preventing the picket from progressing beyond the bracing member when the picket is inserted into the passage.
8. The railing assembly of claim 1 , further comprising a post and a rail bracket that is coupled to the rail, wherein the post includes a post cap and a post base.
9. The railing assembly of claim 1 , wherein the engaging members have bulbous ends and are curved to form a tapered passage.
10. The railing assembly of claim 1 further comprising second engaging members that are oppositely positioned with respect to each other and that are configured to couple the rail to the picket using an interference fit.
11. The railing assembly of claim 1 , wherein the engaging members are further configured to couple the rail to the picket by mechanically locking the engaging members into slots in the picket.
12. A railing assembly comprising:
first engaging members that are oppositely positioned with respect to each other and that are configured to couple a top rail to a top end of a picket using a first interference fit; and
second engaging members that are oppositely positioned with respect to each other and that are configured to couple a bottom rail to a bottom end of the picket using a second interference fit.
13. The railing assembly of claim 12 further comprising:
the top rail that includes the first engaging members and that is coupled to a top clip having an opening configured to allow the picket to pass through the opening; and
the bottom rail that includes the second engaging members and that is coupled to a bottom clip having a second opening configured to allow the picket to pass through the second opening.
14. The railing assembly of claim 12 , wherein the first engaging members are configured to couple to the top rail to a plurality of pickets using the first interference fit; and
wherein the second engaging members are configured to couple the bottom rail to the plurality of pickets using the second interference fit.
15. The railing assembly of claim 12 , wherein the second engaging members are further configured to receive the second clip, the second clip further having second clip tabs configured to couple the second rail to the second clip.
16. A method for installing a railing assembly comprising:
providing a rail and a picket, the rail including engaging members and a passage; and
inserting the picket in the passage such that the engaging members couple the rail to the picket using an interference fit.
17. The method of claim 16 , further comprising:
providing a clip that includes clip tabs and an opening;
coupling the clip to the rail using the clip tabs; and
passing the picket through the opening.
18. The method of claim 16 , further comprising:
providing a second rail that includes second engaging members and a second passage; and
inserting the picket into the second passage such that the second engaging members couple the second rail to the picket using a second interference fit.
19. The method of claim 16 , further comprising:
providing a second picket; and
inserting the second picket into the passage such that the engaging members couple the rail to the second picket using the interference fit.
20. The method of claim 16 , further comprising:
providing a post, a post bracket, a post cap, and a post base;
coupling the post bracket to the rail;
coupling the post bracket to the post;
coupling the post cap to the post; and
coupling the post base to the post.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/671,450 US20150300041A1 (en) | 2014-04-16 | 2015-03-27 | Railing assembly with interference fit-based coupling |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US201461980171P | 2014-04-16 | 2014-04-16 | |
US14/671,450 US20150300041A1 (en) | 2014-04-16 | 2015-03-27 | Railing assembly with interference fit-based coupling |
Publications (1)
Publication Number | Publication Date |
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US20150300041A1 true US20150300041A1 (en) | 2015-10-22 |
Family
ID=54321558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US14/671,450 Abandoned US20150300041A1 (en) | 2014-04-16 | 2015-03-27 | Railing assembly with interference fit-based coupling |
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US (1) | US20150300041A1 (en) |
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US20170370121A1 (en) * | 2015-02-13 | 2017-12-28 | Sas Systems Australia Pty Ltd | Snap fit posts for fence panels balustrades and the like |
US20180094452A1 (en) * | 2016-09-30 | 2018-04-05 | AP Global Innovations LLC | Fence system and method |
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KR102299454B1 (en) * | 2020-02-28 | 2021-09-07 | 주식회사 하늘항공 | Drone for agriculture and forestry |
CN113431034A (en) * | 2021-06-23 | 2021-09-24 | 江苏麦廊新材料科技有限公司 | Precast pile cavity, protective pile with same, protective pile assembly and cavity forming die |
US11186996B2 (en) * | 2018-12-21 | 2021-11-30 | Russell H. Springborn | Friction picket system |
US11384561B2 (en) * | 2019-05-30 | 2022-07-12 | American Fence System, Inc. | System and method for constructing a railing |
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USD784559S1 (en) * | 2005-11-30 | 2017-04-18 | Cpg International Llc | Rail |
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US20180179781A1 (en) * | 2015-06-30 | 2018-06-28 | Alphastrut Ltd | Handrail arrangements |
US10975593B2 (en) * | 2015-09-16 | 2021-04-13 | Peak Innovations Inc. | Railing system |
USD838866S1 (en) * | 2016-08-29 | 2019-01-22 | Rokel Enterprises, LLC | Dock connector |
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US11186996B2 (en) * | 2018-12-21 | 2021-11-30 | Russell H. Springborn | Friction picket system |
US20220127857A1 (en) * | 2018-12-21 | 2022-04-28 | Russell H. Springborn | Friction picket system |
US11384561B2 (en) * | 2019-05-30 | 2022-07-12 | American Fence System, Inc. | System and method for constructing a railing |
KR102299454B1 (en) * | 2020-02-28 | 2021-09-07 | 주식회사 하늘항공 | Drone for agriculture and forestry |
CN113431034A (en) * | 2021-06-23 | 2021-09-24 | 江苏麦廊新材料科技有限公司 | Precast pile cavity, protective pile with same, protective pile assembly and cavity forming die |
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Legal Events
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AS | Assignment |
Owner name: SENTINEL FENCE, LLC, NORTH CAROLINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FEEKO, MATTHEW J.;FUETTERER, DAVID;REEL/FRAME:035277/0259 Effective date: 20150323 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |