US20130344782A1 - Sanding device - Google Patents
Sanding device Download PDFInfo
- Publication number
- US20130344782A1 US20130344782A1 US13/997,817 US201113997817A US2013344782A1 US 20130344782 A1 US20130344782 A1 US 20130344782A1 US 201113997817 A US201113997817 A US 201113997817A US 2013344782 A1 US2013344782 A1 US 2013344782A1
- Authority
- US
- United States
- Prior art keywords
- abrasive cloth
- sanding device
- core
- pieces
- sanding
- 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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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/003—Wheels having flaps of flexible abrasive material supported by a flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/04—Rigid drums for carrying flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
- B24D13/04—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising a plurality of flaps or strips arranged around the axis
- B24D13/045—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising a plurality of flaps or strips arranged around the axis comprising flaps not covering the entire periphery of the wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
- B24D13/06—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery the flaps or strips being individually attached
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
- B24D13/16—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising pleated flaps or strips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/08—Circular back-plates for carrying flexible material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
A sanding device for performing sanding operations comprising a core carrying a plurality of bristles and a plurality of pieces of abrasive cloth, wherein within said core is a material comprising a filler material and a binding material.
Description
- The invention relates to a device for performing sanding operations, the sanding device comprising: a core having a surface; a plurality of bristles being secured to said core and extending from said surface; and a plurality of pieces of abrasive cloth extending from the surface.
- Sanding devices are used among others within the woodworking, metal, plastic and furniture industries and may be used for surface treatment or sanding of plane and curved surfaces for providing smooth surfaces. Sanding devices usually comprise a combination of brushes and sanding means. The function of the brushes is to ensure a certain application pressure between the sanding means and the items to be sanded.
- U.S. Patent application No. 2003/0092370 discloses a sanding strip for use with a sanding wheel. The sanding strips are anchored in undercut grooves in a sanding wheel thereby comprising a sanding device. The disclosed sanding strip comprises a profiled rail wherein a line of bracing elements or brushes is secured. Sanding means are secured to one side of the line of brushes by means of glue.
- In a sanding device the expected life time of the sanding means is usually way below the life time of the brushes. When the sanding means have been worn down either the entire sanding device or only the sanding means have to be replaced. When the uptime of a production line is crucial, it is undesirable to waste valuable time on changing sanding means one by one. Changing and discarding of known sanding device may be both economically and environmentally undesirable.
- The present invention seeks to provide an improved sanding device wherein the properties of the core may be customized according to specific requirements for the sanding device.
- This is achieved by the device comprising a core having a surface; a plurality of bristles being secured to the core and extending from the surface; a plurality of pieces of abrasive cloth extending from the surface; wherein the core is made from a material comprising a filler material and a binding material. The core may be solid or it may be a cylindrical shell.
- An advantage in this respect is that the properties of the core material may be varied according to the specific construction of the sanding device. By using different types of filler material, binding material and combinations thereof the core may be of lighter weight, less expensive to produce, easier to dispose of, etc. The core may also be designed in accordance with means for securing bristles and/or pieces of abrasive cloth to the core.
- In one embodiment, the filler material comprises a recycled material. Hereby the sanding device, particularly the core, may be less expensive to produce, and the sanding device may de disposed of in an environmental-friendly way.
- In another embodiment the pieces of abrasive cloth are secured to the surface by use of staples extending through the abrasive cloth and into the core. Hereby the pieces of abrasive cloth are secured to the core by simple and inexpensive means. The pieces of abrasive cloth may be easily changed without the use of advanced tools. The staples may be the only means for securing the pieces of abrasive cloth; alternatively the staples may be used in combination with glue for securing the pieces of abrasive cloth while the glue is curing. Velcro tape may also be used.
- In another embodiment, reinforcement strips are arranged on top of the pieces of abrasive cloth, and the staples extend through the reinforcement strip, the abrasive cloth and into the core. An advantage in this respect is that the reinforcement strip prevents tearing of the abrasive cloth by the staples, when forces are applied to the cloth.
- In another embodiment, the pieces of abrasive cloth are secured to the surface or to the bristles by use of glue. Hereby staples may be applied only for securing the abrasive cloth during curing of the glue. If staples are use in a combination with glue, the construction may be strengthened, tear of the abrasive cloth may be prevented, and the number of staples may be reduced.
- In a still further embodiment, the abrasive cloth is secured to the sanding device 1 by gluing and/or stapling of the abrasive cloth to the bristles. In this embodiment, the abrasive cloth need not be secured to the surface of the cylindrical core.
- In a still further embodiment, the core comprises grooves adapted to receive and secure pieces of abrasive cloth and bristles. By utilizing grooves, the abrasive cloth and/or bristles may be arranged in fastening strips adapted to be inserted in the grooves. A fastening strip may comprise several bristles or pieces of abrasive cloth arranged side by side. By utilizing fastening strips, the abrasive cloth and/or bristles may be changed faster.
- In another embodiment, the sanding device comprises different pieces of abrasive cloth with different grit sizes. Hereby the sanding device has one grit size when it is rotated in one direction and another or the same grit size when it is rotated in the opposite direction.
- Instead of a single layer of abrasive paper, it is an option according to one embodiment that two or more layers of abrasive paper are provided, like a sandwich. When the outermost layer is worn, the layer behind will overtake the sanding.
- According to another embodiment, several rows of bristles may also be provided between two pieces or two sandwiches of abrasive paper, to the effect that two or three bristles, seen in the peripheral direction, support the abrasive paper.
- In the following, the invention will be described in greater detail with reference to embodiments shown by the enclosed figures. It should be emphasized that the embodiments shown are used for exemplary purposes only and should not be used to limit the scope of the invention.
-
FIGS. 1 a, b, c illustrate different ways of securing abrasive cloth to a sanding device. -
FIGS. 2 a, b are perspective views of cylindrical cores with differently arranged holes. -
FIG. 3 is a perspective view of a cylindrical core with holes and only one row of extending bristles. -
FIG. 4 is a perspective view of a cylindrical core with only one section of abrasive cloth secured to the surface of the core. -
FIG. 5 illustrates end pieces for the sanding device. -
FIG. 6 illustrates a disc-shaped sanding device according to one embodiment of the invention. - With reference to the drawings a sanding device 1 comprising an elongated
cylindrical core 10, a plurality ofbristles 12, and pieces ofabrasive cloth 11 will be described in the following. - The
cylindrical core 10 has asurface 20 with a plurality ofholes 21. In the embodiments shown, thecylindrical core 10 is hollow with an appropriate wall thickness. The cylindrical core may be manufactured from a material comprising a filler material and a binding material. - The filler material may be paper, recycled paper, paperboard, fibreboard, cardboard, wood chips, plastic, recycled material, etc., but is not limited hereto. The filler material may have many different configurations such as, but not limited to, granulate, chips, sheets, layers, film, etc.
- The binding material may be some kind of glue, such as polyvinyl acetate glue, but not limited hereto, preferably chosen in accordance with other constructional parameters of the sanding device 1 as described below.
- A plurality of
bristles 12 are arranged in theholes 21 and secured therein, preferably by staples and/or glue. Thebristles 12 may be arranged in different patterns along thecylindrical core 10, preferably in straight lines parallel to an axis ofrotation 22 or in lines twisting around thecylindrical core 10 creating a spiral-like pattern. The axis ofrotation 22 is defined as a line in space extending through the centre of thecylindrical core 10 in the longitudinal direction. Thebristles 12 extend substantially radially from thesurface 20 of thecore 10. - Referring to
FIG. 1 a, sections ofabrasive cloth 11 are arranged between thebristles 12. In the shown embodiment theabrasive cloth 11 is in the form of bent, elongated pieces of cloth secured to the surface of the core 10 by fastening means 13 such as, but not limited to, staples.Staples 13 are placed along a middle section of theabrasive cloth 11 in the longitudinal direction. Theabrasive cloth 11 thus has a shape resembling a U with the staples placed in the bottom part. - Referring to
FIG. 1 b an embodiment of the inventions is shown where theabrasive cloth 11 is secured to the surface of thecylindrical core 10 by staples arranged along a longitudinal edges of the pieces ofabrasive cloth 11. In a still further embodiment as shown inFIG. 1 c, two pieces ofabrasive cloth 11 are secured to the surface of thecylindrical core 10 by staples arranged in an overlapping section between the two pieces ofabrasive cloth 11. By utilizing two separate pieces ofabrasive cloth 11, it is possible to have a sanding device 1 with abrasive cloth having different grit sizes. Hereby the sanding device has one grit size when it is rotated in one direction and another grit size when it is rotated in the opposite direction. Theabrasive cloth 11 extends substantially radially from the surface of thecylindrical core 10 and may be in abutment with the bristles. - When securing the abrasive cloth by using
staples 13, it may be advantageous to use a reinforcement strip, e.g. a piece of cardboard, arranged on top of the pieces of abrasive cloth in the region where the staples are applied. By inserting the staples through both the reinforcement strip and the abrasive cloth, the tear resistance of the construction is improved. - In an alternative embodiment, the pieces of
abrasive cloth 11 may be secured to the surface for the core 10 using some kind of Velcro. By having mating pieces of Velcro on the pieces ofabrasive cloth 11 and thecore 10, respectively, theabrasive cloth 11 may be removably secured to thecore 10. - The cylindrical core described above may be used in many different types of sanding devices. Abrasive cloth and/or bristles may alternatively be secured in grooves in the
core 10. By utilizing grooves the abrasive cloth and/or bristles may be arranged in fastening strips adapted to be inserted in the grooves. A fastening strip may compriseseveral bristles 12 or pieces ofabrasive cloth 11 arranged side by side. Fastening strips are widely used in known sanding devices. - The binder used in the core material and the staples and/or glue used for securing the
abrasive cloth 11 to the core 10 may be chosen in accordance with each other. It is desirable that the hardness and consistency of the core material are suitable for the utilized fastening means. -
FIG. 5 showsend pieces 30 for the sanding device 1. Different types ofend pieces 30 can be mounted on the sanding device 1. Theend pieces 30 can be standard end pieces or custom made according to the specific use. Theend pieces 30 may preferably have a hole diameter ranging from 5 mm to 80 mm. In the shown embodiment, theend pieces 30 have hexagonal-shapedholes 31. The sanding device 1 may be mounted in a sanding apparatus by inserting a shaft (not shown) through the hexagonal-shapedholes 31 in each of theend pieces 31. In an alternative embodiment, the sanding device 1 may be mounted by only inserting a shaft through ahole 31 in one of theend pieces 30. - In an alternative embodiment as shown in
FIG. 6 , thecylindrical core 10 is substituted with a disc-shapedcore 10 b having atop surface 20 b with a plurality of holes. In this embodiment, the plurality ofbristles 12 and the pieces ofabrasive cloth 11 extend in a direction perpendicular to thetop surface 20 b of thedisc 10 b. This direction corresponds to the direction of the axis of rotation of the disc. Thebristles 12 and the pieces ofabrasive cloth 11 are secured to the disc-shapedcore 10 b with means similar to the means used for securing bristles and the pieces of abrasive cloth to the cylindrical core. The disc-shaped core may have ashaft 20 extending from the centre of the disc and from a side opposite the top surface. The shaft thus extends in a direction opposite to the bristles and the pieces of abrasive cloth and parallel to the axis of rotation. Alternatively the shaft may be arranged excentrically and the disc core may be weighted to the effect that the abrasive paper entails an excentric movement. - The base plate may be manufactured from a material comprising a filler and a binding material. The filler may be paper, recycled paper, paperboard, fibreboard, cardboard, wood chips, plastic, recycled material, etc., but is not limited hereto. The binding material may be some kind of glue, such as polyvinyl acetate glue, but is not limited hereto.
- The embodiment comprising as disc-shaped core may be used in both a commercial sanding apparatus and in connection with power tools, such as but not limited to a hand-held drilling machine. The sanding device may be mounted on a drilling machine by connecting the
shaft 20 of the sanding device with the drill chuck or other means for securing equipment to a drilling machine. - Having described the sanding device in detail, its use and operation will be described in further detail below.
- A sanding device 1 according to the invention is mounted in a sanding apparatus as described above. When the shaft is rotated, the sanding device 1 rotates accordingly. Depending on the specific embodiment, the sanding device may be rotated either clockwise, counter-clockwise or a combination of the two. Thus, when the
abrasive cloth 11 has been worn sufficiently on one side, the rotation may be reversed to utilize the opposite side of theabrasive cloth 11. When theabrasive cloth 11 has been worn sufficiently, either the entire sanding device 1 or only theabrasive cloth 11 may be replaced. Theabrasive cloth 11 may be replaced by removal of the usedabrasive cloth 11 and securing of new pieces of abrasive cloth to the sanding device 1. This may be done by stapling of new pieces of abrasive cloth to the surface of thecylindrical core 10 or by securing of pieces of abrasive cloth to the sanding device 1 according to any one of the above mentioned embodiments.
Claims (16)
1. A sanding device for performing sanding operations, said sanding device comprising:
a core having a surface;
a plurality of bristles being secured to said core and extending from said surface;
a plurality of pieces of abrasive cloth extending from said surface;
wherein said core is made from a material comprising a filler material and a binding material.
2. A sanding device according to claim 1 , wherein said filler material comprises a recycled material
3. A sanding device according to claim 1 , wherein said filler material comprises paper.
4. A sanding device according to claim 1 , wherein said filler material comprises wood fibers.
5. A sanding device according to claim 1 , wherein said pieces of abrasive cloth are secured to said surface by use of staples extending through said abrasive cloth and into said core
6. A sanding device according to claim 5 , wherein reinforcement strips are arranged on top of said pieces of abrasive cloth, and said staples extend through said reinforcement strip and said abrasive cloth and into said core.
7. A sanding device according to claim 1 , wherein said pieces of abrasive cloth are secured to said surface by use of glue.
8. A sanding device according to claim 1 , wherein said pieces of abrasive cloth are secured to said bristles by use of glue and/or staples.
9. A sanding device according to claim 1 , comprising grooves adapted to receive and secure pieces of abrasive cloth and bristles.
10. A sanding device according to claim 1 , wherein said pieces of abrasive cloth are secured to said core by use of a hook-and-loop fastener arranged on said surface and said pieces of abrasive cloth.
11. A sanding device according to claim 1 , comprising different pieces of abrasive cloth with different grit sizes.
12. A sanding device according to claim 1 , wherein a piece of abrasive paper comprises a sandwich of two or more layers of abrasive paper.
13. A sanding device according to claim 1 , wherein several layers of bristles are provided behind a piece of abrasive paper.
14. A sanding device according to claim 1 , wherein said core is a cylindrical core, and said plurality of bristles and said pieces of abrasive cloth extend substantially radially from said surface of said cylindrical core.
15. A sanding device according to claim 1 , wherein said core is a disc-shaped core and said surface is a top surface of said disc, and said plurality of bristles and said pieces of abrasive cloth extend in a direction perpendicular to said top surface of said disc.
16. A sanding device according to claim 1 , wherein said core is solid.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DKPA201001188 | 2010-12-27 | ||
DKPA201001188 | 2010-12-27 | ||
PCT/EP2011/073752 WO2012089609A1 (en) | 2010-12-27 | 2011-12-22 | Sanding device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130344782A1 true US20130344782A1 (en) | 2013-12-26 |
Family
ID=45463586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/997,817 Abandoned US20130344782A1 (en) | 2010-12-27 | 2011-12-22 | Sanding device |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130344782A1 (en) |
EP (1) | EP2658686A1 (en) |
RU (1) | RU2013135412A (en) |
WO (1) | WO2012089609A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140017982A1 (en) * | 2010-12-27 | 2014-01-16 | Amanda Patent & Licensing Sia | Sanding device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK177694B1 (en) * | 2012-12-04 | 2014-03-10 | Poul Erik Jespersen Kadicma | Rotary machining tool |
US9579771B2 (en) * | 2013-12-02 | 2017-02-28 | Apple Inc. | Flood coolant to through spindle coolant conversion |
US10328545B2 (en) | 2016-08-10 | 2019-06-25 | Robert Bosch Tool Corporation | Bell shaped rotary sander |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3132452A (en) * | 1962-02-23 | 1964-05-12 | Merit Products Inc | Rotary abrasive device |
US3165867A (en) * | 1963-02-07 | 1965-01-19 | Ernest E Murray | Finishing wheel |
US3548550A (en) * | 1968-05-23 | 1970-12-22 | Formax Mfg Co | Flap wheel |
US4251958A (en) * | 1979-02-09 | 1981-02-24 | Black & Decker Inc. | Surface finishing device |
US5301472A (en) * | 1991-05-20 | 1994-04-12 | Lyng James W | Sanding element and apparatus |
US6146498A (en) * | 1997-04-30 | 2000-11-14 | Kimberly-Clark Worldwide, Inc. | Wound product cores and processes for making them |
US20030092370A1 (en) * | 2000-04-10 | 2003-05-15 | Poul Lundum | Sanding strip |
US20060276117A1 (en) * | 2003-04-25 | 2006-12-07 | Jespersen Poul E | Grinding wheel with sand paper items |
US20070010183A1 (en) * | 2003-05-22 | 2007-01-11 | Nina Himmer | Brush module for a grinding brush |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK0447608T3 (en) * | 1990-03-23 | 1995-02-27 | Ruetgers Pagid Ag | Abrasive tool, method of making and using a special material therefor |
US5554068A (en) * | 1994-12-13 | 1996-09-10 | Minnesota Mining And Manufacturing Company | Abrasive flap brush and method and apparatus for making same |
DE202006004543U1 (en) * | 2006-03-20 | 2007-07-26 | Btd Barteldrees Gmbh & Co. | Abrasive blades for grinding devices and the like. |
-
2011
- 2011-12-22 WO PCT/EP2011/073752 patent/WO2012089609A1/en active Application Filing
- 2011-12-22 EP EP11805506.0A patent/EP2658686A1/en not_active Withdrawn
- 2011-12-22 US US13/997,817 patent/US20130344782A1/en not_active Abandoned
- 2011-12-22 RU RU2013135412/02A patent/RU2013135412A/en unknown
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3132452A (en) * | 1962-02-23 | 1964-05-12 | Merit Products Inc | Rotary abrasive device |
US3165867A (en) * | 1963-02-07 | 1965-01-19 | Ernest E Murray | Finishing wheel |
US3548550A (en) * | 1968-05-23 | 1970-12-22 | Formax Mfg Co | Flap wheel |
US4251958A (en) * | 1979-02-09 | 1981-02-24 | Black & Decker Inc. | Surface finishing device |
US5301472A (en) * | 1991-05-20 | 1994-04-12 | Lyng James W | Sanding element and apparatus |
US6146498A (en) * | 1997-04-30 | 2000-11-14 | Kimberly-Clark Worldwide, Inc. | Wound product cores and processes for making them |
US20030092370A1 (en) * | 2000-04-10 | 2003-05-15 | Poul Lundum | Sanding strip |
US6793569B2 (en) * | 2000-04-10 | 2004-09-21 | Poul Lundum | Sanding strip |
US20060276117A1 (en) * | 2003-04-25 | 2006-12-07 | Jespersen Poul E | Grinding wheel with sand paper items |
US7318770B2 (en) * | 2003-04-25 | 2008-01-15 | Flex Trim A/S | Grinding wheel with sand paper items |
US20070010183A1 (en) * | 2003-05-22 | 2007-01-11 | Nina Himmer | Brush module for a grinding brush |
US7988540B2 (en) * | 2003-05-22 | 2011-08-02 | Amanda Patent And Licensing Sia | Brush module for a grinding brush |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140017982A1 (en) * | 2010-12-27 | 2014-01-16 | Amanda Patent & Licensing Sia | Sanding device |
Also Published As
Publication number | Publication date |
---|---|
WO2012089609A1 (en) | 2012-07-05 |
EP2658686A1 (en) | 2013-11-06 |
RU2013135412A (en) | 2015-02-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: AMANDA PATENT & LICENSING SIA, LATVIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HIMMER, NINA;REEL/FRAME:031214/0343 Effective date: 20130907 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |