US20140106651A1 - Grinding Head - Google Patents

Grinding Head Download PDF

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Publication number
US20140106651A1
US20140106651A1 US14/122,251 US201214122251A US2014106651A1 US 20140106651 A1 US20140106651 A1 US 20140106651A1 US 201214122251 A US201214122251 A US 201214122251A US 2014106651 A1 US2014106651 A1 US 2014106651A1
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United States
Prior art keywords
grinding head
brushes
abrasive paper
rotation
paper members
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
Application number
US14/122,251
Inventor
Poul Erik Jespersen
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Flex Trim AS
Original Assignee
Flex Trim AS
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Publication date
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Assigned to FLEX TRIM A/S reassignment FLEX TRIM A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JESPERSEN, POUL ERIK
Publication of US20140106651A1 publication Critical patent/US20140106651A1/en
Abandoned legal-status Critical Current

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    • 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
    • B24D13/145—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face having a brush-like working surface
    • 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
    • B24D13/10—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes
    • 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

Definitions

  • the present invention concerns a grinding head of the kind indicated in the preamble of claim 1 .
  • EP 1633530 B1 describes a grinding head or an abrading disc of the kind indicated in the preamble of claim 1 , intended for being rotated about a central axis.
  • the abrading disc has a surface with radial retainer grooves for end parts of abrasive paper members with associated support brushes with a radial extension over the greater part of radius of the surface which has increasing height inwardly from the periphery.
  • the abrading disc is designed such that the surface has increasing height inwardly from a periphery of the surface, and so that the abrasive paper members have approximately radial extension across the greater part of radius of the surface.
  • a stable and uniform grinding which is suited for grinding concave, convex and plane surfaces and recesses/countersinks.
  • the abrasive paper members are distributed diametrically and evenly on the surface of the grinding disc such that the abrasive paper members here cover the greater part of the radius of the surface, entailing that the greater part of the grinding disc surface can be used for counter grinding.
  • the surface has increasing height inwards from the periphery of the surface causes the grinding wheel to be felt very stable as it is the centre part of the grinding disc which strikes the surface to be ground first.
  • the centre part of the grinding wheel there will be no large lateral forces pulling the grinding disc across the surface, and therefore it will be easy to hold the grinding disc against the surface.
  • the purpose of the invention is to indicate a further improved grinding head which makes it easier to achieve a more optimal grinding particularly of side edges and edge areas of plate-shaped items, e.g. blockboard and furniture doors, or corresponding plate-shaped items.
  • the grinding head according to the invention is peculiar in that the abrasive paper members are mounted at an angle of 20-40°, preferably about 30°, directed obliquely forward in the direction of rotation of the plane surface and the tangential plane of the cylindrical surface, respectively.
  • the abrasive paper members are mounted at an angle of 20-40°, preferably about 30°, directed obliquely forward in the direction of rotation of the plane surface and the tangential plane of the cylindrical surface, respectively.
  • grinding of outer edges of laser-cut items of metal sheeting can be optimised by the oblique angle directed forward in the direction of rotation, further facilitating the making of a slight chamfer or rounding of outer top side edges of laser-cut items of metal sheeting.
  • the grinding head according to the invention is designed such that the retainer grooves for the edge profile parts of the abrasive paper members extend obliquely rearwards in the direction of rotation of the plane surface at an angle of 3-10° relative to a radial extension.
  • the grinding head according to the invention is designed such that the retainer grooves for the edge profile parts of the abrasive paper members extend obliquely rearwards in direction of rotation of the cylindrical surface at an angle of 3-10° relative to an axially parallel generatrix of the cylindrical surface.
  • the grinding head according to the invention may advantageously be designed such that the plane surface between the retainer grooves for the edge profile parts of the abrasive paper members is designed with radial suction apertures, and that the grinding head includes an enclosing housing which is provided along its periphery with an annular lip seal.
  • the grinding head according to the invention is designed so that the support brushes consist of relatively soft brushes of pig's bristles.
  • the grinding head according to the invention can be designed so that the support brushes consist of soft horsehair brushes.
  • the grinding head according to the invention can be designed so that the support brushes consist of stiff brushes of Tampico fibres.
  • the support brushes consist of a suitable mixture of pig's bristles, horsehair and Tampico fibres.
  • FIG. 1 shows a plan view of a prior art abrading disc
  • FIG. 2 shows a plan view in section of the prior art abrasive disc according to FIG. 1 ;
  • FIG. 3 shows a plan view of an embodiment of a grinding head according to the invention, as shown during grinding of a plate item;
  • FIG. 4 shows a perspective view of the grinding head according to the invention shown in FIG. 3 for illustrating an oblique angular position of the abrasive paper members
  • FIG. 5 shows a perspective view of the grinding head according to the invention shown in FIG. 3 for illustrating an angular displacement relative to radial of the abrasive paper members;
  • FIG. 6 shows a plan view of a prior art cylindrical grinding head with longitudinal retainer grooves for radial abrasive paper members
  • FIG. 7 shows a plan view in detail of the grinding head shown in FIG. 6 ;
  • FIG. 8 shows a perspective view of an embodiment of a cylindrical grinding head according to the invention where the abrasive paper members are angled forward in the direction of rotation relative to a tangent plane of cylindrical surface of the grinding head;
  • FIG. 9 shows a perspective view in detail of the grinding head shown in FIG. 8 ;
  • FIG. 10 shows a perspective view of a modified embodiment of a grinding head according to the invention where the plane grinding head includes an enclosing housing which is provided along its periphery with an annular lip seal; and
  • FIG. 11 shows a perspective view of the grinding head shown in FIG. 10 , as seen from its outer side.
  • FIG. 1 shows a prior art grinding head 1 e.g. as in EP 1 633 530 B1, having a surface 2 to which a number of abrasive paper members 3 are fastened, and having a radial extension across the greater part of the surface 2 . Behind each abrasive paper member 3 , the grinding disc 1 is provided with a row of support brushes 4 .
  • the number of abrasive paper members 3 and support brushes 4 can be arbitrary. In the shown prior art embodiment of a grinding head 1 , there are eight radial abrasive paper members with associated single rows of support brushes 4 .
  • FIG. 2 shows the prior art grinding head 1 with two abrasive paper members 3 which are slit such that the abrasive paper members 3 are divided into a number of abrading strips 5 .
  • the abrasive paper members 3 are fastened in a surface of the grinding head 1 .
  • the surface 2 has increasing height inwards from its periphery 6 .
  • support brushes 4 are provided, with uniform height such that the polishing pressure becomes uniform in height.
  • FIGS. 3-5 show a preferred embodiment of a grinding head 1 ′ according to the invention where the grinding head 1 ′ in FIG. 3 during rotation is moved towards the right side of the drawing, along an outer side edge 9 of a plate-shaped item 10 to be abraded.
  • FIG. 6 shows a prior art cylindrical grinding head 19 e.g. as in EP 1 509 365 B1, having longitudinal retainer grooves 20 for receiving edge profile parts 21 of abrasive paper members 3 with associated support brushes 4
  • FIG. 7 shows a detail view of retainer grooves 20 and edge profile parts 21 , respectively, for reception in retainer grooves 20 .
  • FIG. 8 shows a modified embodiment of a grinding head 1 ′ with a large number of retainer grooves 12 for edge profile parts 14 , where the retainer grooves 12 have an inclined orientation of 20-40°, preferably about 30°, forward in the direction of rotation as well as the retainer grooves 12 for the edge profile parts 14 of the abrasive paper members 3 extend obliquely rearwards in the direction of rotation of the cylindrical surface 13 at an angle of 3-10° relative to the tangent plane of the cylindrical surface 13 .

Abstract

Grinding heads rotate about central axes, have surfaces between plane and cylindrical surfaces provided with retainer grooves for edge profile parts of a number of abrasive paper members with associated support brushes. Abrasive paper members are mounted at angles of 20-40°, preferably about 30°, directed obliquely forward in the direction of rotation of the plane surface and a tangential plane of the cylindrical surface. Retainer grooves for edge profile parts of the abrasive paper members extend obliquely rearward in the direction of rotation of the plane surface at an angle of 3-10° relative to a radial extension. Alternatively, the retainer grooves extend obliquely rearward in the direction of rotation of the cylindrical surface at an angle of 3-10° relative to an axially parallel generatrix of the cylindrical surface. In a simple way a more optimal abrading of particularly outer side edges and edge areas of plate-shaped items is readily achieved.

Description

    FIELD OF THE INVENTION
  • The present invention concerns a grinding head of the kind indicated in the preamble of claim 1.
    • BACKGROUND OF THE INVENTION
  • EP 1633530 B1 describes a grinding head or an abrading disc of the kind indicated in the preamble of claim 1, intended for being rotated about a central axis. The abrading disc has a surface with radial retainer grooves for end parts of abrasive paper members with associated support brushes with a radial extension over the greater part of radius of the surface which has increasing height inwardly from the periphery.
  • The abrading disc is designed such that the surface has increasing height inwardly from a periphery of the surface, and so that the abrasive paper members have approximately radial extension across the greater part of radius of the surface. Hereby is ensured a stable and uniform grinding which is suited for grinding concave, convex and plane surfaces and recesses/countersinks.
  • In order to achieve a more stable and good grinding of a surface, the abrasive paper members are distributed diametrically and evenly on the surface of the grinding disc such that the abrasive paper members here cover the greater part of the radius of the surface, entailing that the greater part of the grinding disc surface can be used for counter grinding.
  • That the surface has increasing height inwards from the periphery of the surface causes the grinding wheel to be felt very stable as it is the centre part of the grinding disc which strikes the surface to be ground first. Around the centre part of the grinding wheel there will be no large lateral forces pulling the grinding disc across the surface, and therefore it will be easy to hold the grinding disc against the surface.
    • OBJECT OF THE INVENTION
  • On this background, the purpose of the invention is to indicate a further improved grinding head which makes it easier to achieve a more optimal grinding particularly of side edges and edge areas of plate-shaped items, e.g. blockboard and furniture doors, or corresponding plate-shaped items.
    • DESCRIPTION OF THE INVENTION
  • The grinding head according to the invention is peculiar in that the abrasive paper members are mounted at an angle of 20-40°, preferably about 30°, directed obliquely forward in the direction of rotation of the plane surface and the tangential plane of the cylindrical surface, respectively. In a simple way is hereby readily achieved a more optimal abrading of particularly side edges and edge areas of plate-shaped items.
  • For example, it is to be emphasised that grinding of outer edges of laser-cut items of metal sheeting can be optimised by the oblique angle directed forward in the direction of rotation, further facilitating the making of a slight chamfer or rounding of outer top side edges of laser-cut items of metal sheeting.
  • The grinding head according to the invention is designed such that the retainer grooves for the edge profile parts of the abrasive paper members extend obliquely rearwards in the direction of rotation of the plane surface at an angle of 3-10° relative to a radial extension.
  • Alternatively, the grinding head according to the invention is designed such that the retainer grooves for the edge profile parts of the abrasive paper members extend obliquely rearwards in direction of rotation of the cylindrical surface at an angle of 3-10° relative to an axially parallel generatrix of the cylindrical surface.
  • The grinding head according to the invention may advantageously be designed such that the plane surface between the retainer grooves for the edge profile parts of the abrasive paper members is designed with radial suction apertures, and that the grinding head includes an enclosing housing which is provided along its periphery with an annular lip seal.
  • The grinding head according to the invention may further suitably be designed such that the lip seal is constituted by brushes made of an electrically conducting material, e.g. carbon fibre brushes.
  • With the object of further optimising the grinding head according to the invention, it can be designed such that side edges of the radial suction apertures have an inclined course downwards in the direction of rotation such that rotation of the plane surface can cause a sucking effect by itself.
  • Suitably, the grinding head according to the invention is designed so that the support brushes consist of relatively soft brushes of pig's bristles.
  • Alternatively, the grinding head according to the invention can be designed so that the support brushes consist of soft horsehair brushes.
  • Or the grinding head according to the invention can be designed so that the support brushes consist of stiff brushes of Tampico fibres.
  • It will furthermore be possible, with the object of optimisation for specific tasks, that the support brushes consist of a suitable mixture of pig's bristles, horsehair and Tampico fibres.
    • DESCRIPTION OF THE DRAWING
  • The invention is explained more closely in the following with reference to the drawing, on which:
  • FIG. 1 shows a plan view of a prior art abrading disc; and
  • FIG. 2 shows a plan view in section of the prior art abrasive disc according to FIG. 1;
  • FIG. 3 shows a plan view of an embodiment of a grinding head according to the invention, as shown during grinding of a plate item;
  • FIG. 4 shows a perspective view of the grinding head according to the invention shown in FIG. 3 for illustrating an oblique angular position of the abrasive paper members;
  • FIG. 5 shows a perspective view of the grinding head according to the invention shown in FIG. 3 for illustrating an angular displacement relative to radial of the abrasive paper members;
  • FIG. 6 shows a plan view of a prior art cylindrical grinding head with longitudinal retainer grooves for radial abrasive paper members;
  • FIG. 7 shows a plan view in detail of the grinding head shown in FIG. 6;
  • FIG. 8 shows a perspective view of an embodiment of a cylindrical grinding head according to the invention where the abrasive paper members are angled forward in the direction of rotation relative to a tangent plane of cylindrical surface of the grinding head;
  • FIG. 9 shows a perspective view in detail of the grinding head shown in FIG. 8;
  • FIG. 10 shows a perspective view of a modified embodiment of a grinding head according to the invention where the plane grinding head includes an enclosing housing which is provided along its periphery with an annular lip seal; and
  • FIG. 11 shows a perspective view of the grinding head shown in FIG. 10, as seen from its outer side.
    •  DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION
  • FIG. 1 shows a prior art grinding head 1 e.g. as in EP 1 633 530 B1, having a surface 2 to which a number of abrasive paper members 3 are fastened, and having a radial extension across the greater part of the surface 2. Behind each abrasive paper member 3, the grinding disc 1 is provided with a row of support brushes 4.
  • The number of abrasive paper members 3 and support brushes 4 can be arbitrary. In the shown prior art embodiment of a grinding head 1, there are eight radial abrasive paper members with associated single rows of support brushes 4.
  • FIG. 2 shows the prior art grinding head 1 with two abrasive paper members 3 which are slit such that the abrasive paper members 3 are divided into a number of abrading strips 5. The abrasive paper members 3 are fastened in a surface of the grinding head 1. The surface 2 has increasing height inwards from its periphery 6. Behind the abrasive paper members 3, support brushes 4 are provided, with uniform height such that the polishing pressure becomes uniform in height.
  • FIGS. 3-5 show a preferred embodiment of a grinding head 1′ according to the invention where the grinding head 1′ in FIG. 3 during rotation is moved towards the right side of the drawing, along an outer side edge 9 of a plate-shaped item 10 to be abraded.
  • FIG. 4 illustrates that the abrasive paper members 3 with associated support brushes 4 are mounted in retainer grooves 12 in the grinding head 1′ at an oblique angle 7 of 20-40°, preferably about 30°, directed forward in the direction of rotation of a plane surface 2′. It is to be mentioned that the oblique angle 7 is measured in relation to a generatrix 11 standing perpendicularly to the periphery of the grinding head 1′.
  • FIG. 5 illustrates that that the retainer grooves 12 for the edge profile parts 14 of the abrasive paper members 3 extend obliquely rearwards in the direction of rotation of the plane surface 2′ at an angle 8 of 3-10° relative to a radial extension, i.e. the abrasive paper members 3 are angularly displaced relative to a central axis.
  • FIG. 6 shows a prior art cylindrical grinding head 19 e.g. as in EP 1 509 365 B1, having longitudinal retainer grooves 20 for receiving edge profile parts 21 of abrasive paper members 3 with associated support brushes 4, whereas FIG. 7 shows a detail view of retainer grooves 20 and edge profile parts 21, respectively, for reception in retainer grooves 20.
  • FIG. 8 shows a modified embodiment of a grinding head 1′ with a large number of retainer grooves 12 for edge profile parts 14, where the retainer grooves 12 have an inclined orientation of 20-40°, preferably about 30°, forward in the direction of rotation as well as the retainer grooves 12 for the edge profile parts 14 of the abrasive paper members 3 extend obliquely rearwards in the direction of rotation of the cylindrical surface 13 at an angle of 3-10° relative to the tangent plane of the cylindrical surface 13.
  • FIGS. 10 and 11 show a grinding head 1″ with a plane surface 2′ which between the retainer grooves 12 for the abrasive paper members 3 and the support brushes 4, respectively, is designed with radial suction apertures 15, and which includes an enclosing housing 16 which is provided along its periphery with an annular lip seal 17 and an external suction branch 22. This is intended for connection with a hose for a suction cleaner or a central suction system.
  • The lip seal 7 is constituted by brushes that are made of an electrically conducting material, e.g. carbon fibre brushes 18, such that static electricity can be earthed thereby via the carbon fibre brushes 17, of course on the condition that the grinding head 1″ with the carbon fibre brushes 17 as such is provided with a potential equalisation connection (earth connection).
  • Side edges 19 of the radial suction apertures 15 have an inclined course downwards against lower sharp edges in the direction of rotation such that rotation of the plane surface 2′ only can cause a substantial sucking effect by itself.

Claims (10)

1. Grinding head (1′) adapted to rotate about a central axis, comprising a surface which is selected between a plane surface (2′) and a cylindrical surface (13), and which is provided with retainer grooves (12) for edge profile parts (14) of a number of abrasive paper members (3) with associated support brushes (4), wherein the abrasive paper members (3) are mounted at an angle of 20-40°, preferably about 30°, directed obliquely forward in the direction of rotation of the plane surface (2′) and the tangential plane of the cylindrical surface (13), respectively.
2. Grinding head (1′) according to claim 1, wherein the retainer grooves (12) for the edge profile parts (14) of the abrasive paper members (3) extend obliquely rearwards in the direction of rotation of the plane surface (2′) at an angle (8) of 3-10° relative to a radial extension.
3. Grinding head (1′) according to claim 1, wherein the retainer grooves (12) of the edge profile parts (14) of the abrasive paper members (3) extend obliquely rearwards in the direction of rotation of the cylindrical surface (13) at an angle (3) of about 3-10° relative to an axially parallel generatrix of the cylindrical surface (13).
4. Grinding head (1″) according to claim 1, wherein the plane surface (2′) between the retainer grooves (12) for the edge profile parts (14) of the abrasive paper members (3) is designed with radial suction apertures (15), and that the grinding head (1″) includes an enclosing housing (16) which is provided along its periphery with an annular lip seal (17).
5. Grinding head (1″) according to claim 4, wherein the lip seal (17) is constituted by brushes made of an electrically conducting material, e.g. carbon fibre brushes (18).
6. Grinding head (1″) according to claim 4, wherein side edges (19) of the radial suction apertures (15) have an inclined course downwards in the direction of rotation such that rotation of the plane surface (2′) can cause a sucking effect by itself.
7. Grinding head (1′, 1″) according to claim 1, wherein the support brushes (4) comprise relatively soft brushes of pig bristles.
8. Grinding head (1′, 1″) according to claim 1, wherein the support brushes (4) comprise soft horsehair brushes.
9. Grinding head (1′, 1″) according to claim 1, wherein the support brushes (4) comprise relatively stiff brushes of Tampico fibres.
10. Grinding head (1′, 1″) according to claim 1, wherein the support brushes (4) consist of a mixture of pig bristles, horsehair and Tampico fibres.
US14/122,251 2011-05-27 2012-05-25 Grinding Head Abandoned US20140106651A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DKPA201170265A DK177274B1 (en) 2011-05-27 2011-05-27 Grinding head
DKPA201170265 2011-05-27
PCT/DK2012/050181 WO2012163357A1 (en) 2011-05-27 2012-05-25 Grinding head

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US20140106651A1 true US20140106651A1 (en) 2014-04-17

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US14/122,251 Abandoned US20140106651A1 (en) 2011-05-27 2012-05-25 Grinding Head

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US (1) US20140106651A1 (en)
EP (1) EP2714334B1 (en)
CA (1) CA2835996A1 (en)
DK (1) DK177274B1 (en)
PL (1) PL2714334T3 (en)
WO (1) WO2012163357A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107855519A (en) * 2017-11-20 2018-03-30 贵州大学 A kind of cylindrical bore wall graphite paper floating device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK177694B1 (en) * 2012-12-04 2014-03-10 Poul Erik Jespersen Kadicma Rotary machining tool
DE202014000852U1 (en) 2014-01-30 2015-01-21 Kolthoff & Co. Tool for surface finishing
CN109689301A (en) * 2016-05-31 2019-04-26 弗雷克斯特里姆股份公司 Cutter with cutter elements
IT201900018134A1 (en) * 2019-10-07 2021-04-07 Ditech S R L TOOL FOR POLISHING CERAMIC AND / OR NATURAL STONES

Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819568A (en) * 1957-04-18 1958-01-14 John N Kasick Grinding wheel
US4783875A (en) * 1983-07-14 1988-11-15 Cottam Spencer D Cleaning device
US5560753A (en) * 1992-02-12 1996-10-01 Minnesota Mining And Manufacturing Company Coated abrasive article containing an electrically conductive backing
EP0924031A1 (en) * 1997-12-17 1999-06-23 Botech AG Gesellschaft für Beratung und Oberflächentechnik Tool for working surfaces and edges
US20010018316A1 (en) * 2000-01-28 2001-08-30 Werner Blattler Grinding tool, processing machine with a grinding tool, use of a grinding tool and method for processing a work piece
US6413287B1 (en) * 1999-02-17 2002-07-02 3M Innovative Properties Company Method for making an abrasive article and abrasive articles thereof
US6422932B1 (en) * 1999-10-15 2002-07-23 3M Innovative Properties Company Integrally molded brush and method for making the same
US20030060152A1 (en) * 2001-08-31 2003-03-27 Lee Chang Hyun Abrasive wheel
US20040180613A1 (en) * 2002-10-10 2004-09-16 Poul Lundum Abrading machine with abrading discs, which are moved in a reciprocatory movement transverse to an item
US6808446B1 (en) * 1999-04-23 2004-10-26 Elliott Industries Limited Abrasive flap disc
US20050170764A1 (en) * 2004-01-31 2005-08-04 Sun Abrasives Co., Ltd. Back up pad of grinding wheel
US7014543B1 (en) * 2003-12-09 2006-03-21 Digital Innovations, Llc Optical disc resurfacing and buffing apparatus
US20060276117A1 (en) * 2003-04-25 2006-12-07 Jespersen Poul E Grinding wheel with sand paper items
US20060281396A1 (en) * 2003-05-23 2006-12-14 Jespersen Poul E Grinding element for mounting in a groove
US20070141953A1 (en) * 2003-12-08 2007-06-21 Jespersen Poul E Grinding apparatus
US20080005860A1 (en) * 2006-07-07 2008-01-10 Yuuichiro Niizaki Brush bristle material and brush
US20080176494A1 (en) * 2007-01-19 2008-07-24 Simon Palushaj Abrasive preparation device with an improved abrasion element assembly
US7458884B2 (en) * 2003-08-11 2008-12-02 Ufi Schleiftechnik Gmbh & Co. Kg Grinding disc for grinding machines
US20090053984A1 (en) * 2005-07-21 2009-02-26 Poul Erik Jespersen Profile strip with grinding element
WO2009032964A1 (en) * 2007-09-06 2009-03-12 3M Innovative Properties Company Linear abrasive brush member, method for preparing linear abrasive brush member, and abrasive brush
US20110183587A1 (en) * 2008-11-04 2011-07-28 C. & E. Fein Gmbh Ceiling grinder
US20150209938A1 (en) * 2014-01-30 2015-07-30 Kolthoff & Co. Tool for Fine Machining of Surfaces

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1193866A (en) * 1981-10-09 1985-09-24 Warren L. Langstraat Sanding wheel
IT1220123B (en) * 1987-11-02 1990-06-06 Dyanex Di Bandelli D & Visinti ROTATING BRUSH FOR SMOOTHING
DE202004002905U1 (en) * 2003-09-08 2004-04-29 ProFin Prograssive Finish AG Tool for processing surfaces, edge areas and contours
FR2882673B1 (en) * 2005-03-07 2008-10-31 Christian Diat PNEUMATIC TOOL WITH SANDING EFFECT

Patent Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819568A (en) * 1957-04-18 1958-01-14 John N Kasick Grinding wheel
US4783875A (en) * 1983-07-14 1988-11-15 Cottam Spencer D Cleaning device
US5560753A (en) * 1992-02-12 1996-10-01 Minnesota Mining And Manufacturing Company Coated abrasive article containing an electrically conductive backing
EP0924031A1 (en) * 1997-12-17 1999-06-23 Botech AG Gesellschaft für Beratung und Oberflächentechnik Tool for working surfaces and edges
US6413287B1 (en) * 1999-02-17 2002-07-02 3M Innovative Properties Company Method for making an abrasive article and abrasive articles thereof
US6808446B1 (en) * 1999-04-23 2004-10-26 Elliott Industries Limited Abrasive flap disc
US6422932B1 (en) * 1999-10-15 2002-07-23 3M Innovative Properties Company Integrally molded brush and method for making the same
US20010018316A1 (en) * 2000-01-28 2001-08-30 Werner Blattler Grinding tool, processing machine with a grinding tool, use of a grinding tool and method for processing a work piece
US20030060152A1 (en) * 2001-08-31 2003-03-27 Lee Chang Hyun Abrasive wheel
US20040180613A1 (en) * 2002-10-10 2004-09-16 Poul Lundum Abrading machine with abrading discs, which are moved in a reciprocatory movement transverse to an item
US20060276117A1 (en) * 2003-04-25 2006-12-07 Jespersen Poul E Grinding wheel with sand paper items
US20060281396A1 (en) * 2003-05-23 2006-12-14 Jespersen Poul E Grinding element for mounting in a groove
US7458884B2 (en) * 2003-08-11 2008-12-02 Ufi Schleiftechnik Gmbh & Co. Kg Grinding disc for grinding machines
US20070141953A1 (en) * 2003-12-08 2007-06-21 Jespersen Poul E Grinding apparatus
US7014543B1 (en) * 2003-12-09 2006-03-21 Digital Innovations, Llc Optical disc resurfacing and buffing apparatus
US20050170764A1 (en) * 2004-01-31 2005-08-04 Sun Abrasives Co., Ltd. Back up pad of grinding wheel
US20090053984A1 (en) * 2005-07-21 2009-02-26 Poul Erik Jespersen Profile strip with grinding element
US20080005860A1 (en) * 2006-07-07 2008-01-10 Yuuichiro Niizaki Brush bristle material and brush
US20080176494A1 (en) * 2007-01-19 2008-07-24 Simon Palushaj Abrasive preparation device with an improved abrasion element assembly
US20100203814A1 (en) * 2007-01-19 2010-08-12 Simon Palushaj Abrasive preparation device with an improved abrasion element assembly
WO2009032964A1 (en) * 2007-09-06 2009-03-12 3M Innovative Properties Company Linear abrasive brush member, method for preparing linear abrasive brush member, and abrasive brush
US20110183587A1 (en) * 2008-11-04 2011-07-28 C. & E. Fein Gmbh Ceiling grinder
US20150209938A1 (en) * 2014-01-30 2015-07-30 Kolthoff & Co. Tool for Fine Machining of Surfaces

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Vogel Josef, machine translation of EP 0924031 A1, June 1999 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107855519A (en) * 2017-11-20 2018-03-30 贵州大学 A kind of cylindrical bore wall graphite paper floating device

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CA2835996A1 (en) 2012-12-06
PL2714334T3 (en) 2021-10-25
EP2714334A1 (en) 2014-04-09
EP2714334A4 (en) 2014-11-26
DK177274B1 (en) 2012-09-10
EP2714334B1 (en) 2021-03-03
NZ617988A (en) 2015-04-24

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