EP0351273A1 - Sanding bloc - Google Patents

Sanding bloc Download PDF

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Publication number
EP0351273A1
EP0351273A1 EP89401807A EP89401807A EP0351273A1 EP 0351273 A1 EP0351273 A1 EP 0351273A1 EP 89401807 A EP89401807 A EP 89401807A EP 89401807 A EP89401807 A EP 89401807A EP 0351273 A1 EP0351273 A1 EP 0351273A1
Authority
EP
European Patent Office
Prior art keywords
support plate
abrasive
block
sanding
fixed
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.)
Withdrawn
Application number
EP89401807A
Other languages
German (de)
French (fr)
Inventor
Bernard Huet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PREMINES SA
Original Assignee
PREMINES SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PREMINES SA filed Critical PREMINES SA
Publication of EP0351273A1 publication Critical patent/EP0351273A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/02—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface
    • B24D15/023—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface using in exchangeable arrangement a layer of flexible material

Definitions

  • the invention relates to a sanding block for supporting an abrasive, for example a sheet abrasive.
  • sanding wedges which consist of a rigid wooden or plastic support forming the block for gripping the wedge to which an abrasive sheet is fixed.
  • This type of shim allows to obtain a suitable quality and precision of work, however the gripping block being rigid, the comfort of use is practically nonexistent, so that the user must stop regularly during his work .
  • the object of the invention is to provide a shim having increased comfort of use allowing extended work while ensuring good precision of the work performed.
  • a sanding block comprising a gripping block made of a semi-rigid material, a rigid support plate fixed by one face to the gripping block and an abrasive fixed to one face of the plate. support opposite the face fixed to the gripping block,
  • the rigid support plate holds the abrasive firmly and ensures quality and precision of sanding, while the localized connection of the support plate with the gripping block allows a deformation of this while transmitting the efforts printed to it by the user.
  • the rigid support plate is fixed to the gripping block by hook-and-loop fastening means; and preferably, the abrasive is supported by a sheet fixed to the rigid support plate also by hook-and-loop fastening means.
  • this wedge can be easily and quickly interchanged when they no longer perform the desired function, in particular when the abrasive is worn, when it is desired to replace the abrasive in place with an abrasive having a different grain size, or when it is desired to replace the rigid plate in place with a plate with a different profile.
  • This sanding block comprises a semi-rigid gripping block 1 of substantially parallelepiped shape, a rigid and flat support plate 2 fixed by one face 3 to the gripping block 1, and an abrasive sheet 4 fixed to one face 5 of the rigid support plate 2 opposite the face 3 fixed to the gripping block 1.
  • the gripping block is made of a dense foam, preferably an elastomeric foam, so that the gripping block has sufficient strength to transmit the forces necessary to perform the sanding (support and lateral movement), while being slightly deformed to follow the inner contour of the user's hand.
  • This semi-rigid gripping block has two gripping grooves 6,7 each provided on a longitudinal side of the block.
  • the block 1 further comprises a flat surface 8 intended to receive the rigid support plate 2 of the abrasive.
  • the face opposite 13 to the face 8 comprises chamfers 14 at its periphery in order to facilitate and improve the handling of the block.
  • the face 8 is provided with hook-and-loop fastening elements 9 fixed to the block by gluing or any other suitable means.
  • the hook-and-loop fastening elements 9 cooperate with complementary hook-and-loop fastening elements 10 fixed to the face 3 of the rigid support plate 2.
  • the rigid support plate 2 is made of plastic, for example polystyrene; it covers the entire face 8 of the block 1 and has a thickness of a few millimeters.
  • This support plate also includes fixing elements.
  • tion 15 hook-and-loop fasteners arranged on the face 5 opposite to the face 3 fixed to the gripping block 1. These hook-and-loop fasteners 15 cooperate with complementary hook-and-loop fasteners 11 arranged on the non-abrasive surface 12 of the abrasive sheet 4.
  • hook-and-loop fastening means allows the repeated use of the same sheet of abrasive until the abrasive sheet is completely worn.
  • the gripping block With the sanding block according to the invention, during sanding of a surface, the gripping block 1, strongly tightened by the hand of the user, deforms slightly so as to tend to take the form of the internal imprint of this by hand, while the entire surface of the abrasive remains applied via the rigid support plate to the surface to be sanded. This gives good quality and good sanding precision while maintaining optimal comfort.
  • the invention is not limited to the embodiment described and it is possible to make alternative embodiments without departing from its scope.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

Ascending block comprising a semi-rigid gripping base (1) associated with a rigid abrasive-support plate (2), the support plate (2) and the abrasive (4) being respectively fixed to the gripping base (1) and to the support plate (2) by self-gripping fastening means (9,10,15,11). <IMAGE>

Description

L'invention concerne une cale a poncer destinée à supporter un abrasif, par exemple un abrasif en feuille.The invention relates to a sanding block for supporting an abrasive, for example a sheet abrasive.

On connaît à ce jour des cales à poncer consti­tuées par un support rigide en bois ou en matière plastique formant le bloc de préhension de la cale auquel est fixée une feuille d'abrasif. Ce type de cale permet d'obtenir une qualité et une précision de travail convenables, cependant le bloc de préhension étant rigide, le confort d'utilisation est pratiquement inexistant, si bien que l'utilisateur doit s'interrompre régulièrement au cours de son travail.To date, sanding wedges are known which consist of a rigid wooden or plastic support forming the block for gripping the wedge to which an abrasive sheet is fixed. This type of shim allows to obtain a suitable quality and precision of work, however the gripping block being rigid, the comfort of use is practically nonexistent, so that the user must stop regularly during his work .

Le but de l'invention est de proposer une cale ayant un confort d'utilisation accru permettant un travail prolongé tout en assurant une bonne précision du travail effectué.The object of the invention is to provide a shim having increased comfort of use allowing extended work while ensuring good precision of the work performed.

En vue de la réalisation de ce but, on propose une cale à poncer comprenant un bloc de préhension réalisé en un matériau semi-rigide, une plaque support rigide fixée par une face au bloc de préhension et un abrasif fixé sur une face de la plaque support opposée à la face fixée au bloc de préhension, Ainsi, la plaque support rigide maintient fermement l'abrasif et assure une qualité et une précision du ponçage, tandis que la liaison localisée de la plaque support avec le bloc de préhension permet une déformation de celui-ci tout en transmettant les efforts qui lui sont imprimés par l'utilisateur..With a view to achieving this goal, a sanding block is provided comprising a gripping block made of a semi-rigid material, a rigid support plate fixed by one face to the gripping block and an abrasive fixed to one face of the plate. support opposite the face fixed to the gripping block, Thus, the rigid support plate holds the abrasive firmly and ensures quality and precision of sanding, while the localized connection of the support plate with the gripping block allows a deformation of this while transmitting the efforts printed to it by the user.

Selon un aspect préféré de 1 invention, la plaque support rigide est fixée au bloc de préhension par des moyens de fixation auto-agrippants ; et de préférence, l'abrasif est supporté par une feuille fixée à la plaque support rigide également par des moyens de fixation auto-agrippants Ainsi les différents éléments constituant cette cale peuvent être aisé­ment et rapidement interchangés quand ils ne réalisent plus la fonction désirée, notamment lorsque l'abrasif est usé, lorsque l'on souhaite remplacer l'abrasif en place par un abrasif présentant une taille de grains différente, ou lorsque l'on souhaite remplacer la plaque rigide en place par une plaque présentant un profil différent.According to a preferred aspect of 1 invention, the rigid support plate is fixed to the gripping block by hook-and-loop fastening means; and preferably, the abrasive is supported by a sheet fixed to the rigid support plate also by hook-and-loop fastening means. Thus the various elements constituting this wedge can be easily and quickly interchanged when they no longer perform the desired function, in particular when the abrasive is worn, when it is desired to replace the abrasive in place with an abrasive having a different grain size, or when it is desired to replace the rigid plate in place with a plate with a different profile.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui suit d'un mode de réalisation non limitatif en liaison avec le dessin ci-joint qui est une vue éclatée en perspective d'une cale à poncer selon l'invention.Other characteristics and advantages of the invention will appear on reading the following description of a non-limiting embodiment in conjunction with the attached drawing which is an exploded perspective view of a sanding block according to the invention. 'invention.

En se référant à la figure, on voit un mode de réa­lisation d'une cale à poncer selon l'invention. Cette cale à poncer comprend un bloc de préhension 1 semi-rigide de forme sensiblement parallélépipédique, une plaque support 2 rigide et plane fixée par une face 3 au bloc de préhension 1, et une feuille d'abrasif 4 fixée sur une face 5 de la plaque sup­port 2 rigide opposée à la face 3 fixée au bloc de préhension 1.Referring to the figure, an embodiment of a sanding block according to the invention is seen. This sanding block comprises a semi-rigid gripping block 1 of substantially parallelepiped shape, a rigid and flat support plate 2 fixed by one face 3 to the gripping block 1, and an abrasive sheet 4 fixed to one face 5 of the rigid support plate 2 opposite the face 3 fixed to the gripping block 1.

Le bloc de prehension est réalisé en une mousse alvé­oléedense, de préférence une mousse élastomère, si bien que le bloc de préhension a une tenue suffisante pour transmet­tre les forces nécessaires pour effectuer le ponçage (appui et déplacement latéral), tout en se déformant légérement pour épouser le contour interne de la main de l'utilisateur.The gripping block is made of a dense foam, preferably an elastomeric foam, so that the gripping block has sufficient strength to transmit the forces necessary to perform the sanding (support and lateral movement), while being slightly deformed to follow the inner contour of the user's hand.

Ce bloc de préhension semi-rigide comporte deux gorges de préhension 6,7 ménagées chacune sur un côté longitudinal du bloc. Le bloc 1 comporte en outre une surface plane 8 des­tinée à recevoir la plaque support rigide 2 de l'abrasif. De préférence, la face opposée 13 à la face 8 comprend des chan­freins 14 à sa périphérie afin de faciliter et d'améliorer la prise en main du bloc. La face 8 est munie d'éléments de fixa­tion auto-agrippants 9 fixés au bloc par collage ou tout autre moyen approprié. Les éléments de fixation auto-agrippants 9 coopèrent avec des éléments de fixation auto-agrippants complé­mentaires 10 fixés sur la face 3 de la plaque support rigide 2.This semi-rigid gripping block has two gripping grooves 6,7 each provided on a longitudinal side of the block. The block 1 further comprises a flat surface 8 intended to receive the rigid support plate 2 of the abrasive. Preferably, the face opposite 13 to the face 8 comprises chamfers 14 at its periphery in order to facilitate and improve the handling of the block. The face 8 is provided with hook-and-loop fastening elements 9 fixed to the block by gluing or any other suitable means. The hook-and-loop fastening elements 9 cooperate with complementary hook-and-loop fastening elements 10 fixed to the face 3 of the rigid support plate 2.

La plaque support rigide 2 est en matière plastique, par exemple en polystyrène ; elle recouvre la totalité de la face 8 du bloc 1 et a une épaisseur de quelques millimètres. Cette plaque support comporte également des éléments de fixa­ tion 15 auto-agrippants disposés sur la face 5 opposée à la face 3 fixée au bloc de préhension 1. Ces éléments de fixa­tion auto-agrippants 15 coopérent avec des éléments de fixation auto-agrippants complémentaires 11 disposés sur la surface 12 non abrasive de la feuille d'abrasif 4.The rigid support plate 2 is made of plastic, for example polystyrene; it covers the entire face 8 of the block 1 and has a thickness of a few millimeters. This support plate also includes fixing elements. tion 15 hook-and-loop fasteners arranged on the face 5 opposite to the face 3 fixed to the gripping block 1. These hook-and-loop fasteners 15 cooperate with complementary hook-and-loop fasteners 11 arranged on the non-abrasive surface 12 of the abrasive sheet 4.

L'utilisation de moyens de fixation auto-agrip­pants permet l'usage répété d'une même feuille d'abrasif jusqu'à usure complète de cette feuille d'abrasif.The use of hook-and-loop fastening means allows the repeated use of the same sheet of abrasive until the abrasive sheet is completely worn.

Avec la cale à poncer selon l'invention, pendant le ponçage d'une surface, le bloc de préhension 1,fortement serré par la main de l'utilisateur, se déforme légèrement pour tendre à prendre la forme de l'empreinte intérieure de cette main, tandis que la totalité de la surface de l'abrasif reste appliquée par l'intermédiaire de la plaque support rigi­de sur la surface à poncer. Ainsi on obtient une bonne qualité et une bonne précision de ponçage en conservant un confort optimal.With the sanding block according to the invention, during sanding of a surface, the gripping block 1, strongly tightened by the hand of the user, deforms slightly so as to tend to take the form of the internal imprint of this by hand, while the entire surface of the abrasive remains applied via the rigid support plate to the surface to be sanded. This gives good quality and good sanding precision while maintaining optimal comfort.

Bien entendu, l'invention n est pas limitée au mode de réalisation décrit et on peut y apporter des variantes de réalisation sans sortir de son cadre. En particulier, on peut prévoir,à la place des gorges de préhension, une forme de bloc de préhension ergonomique reprenant la forme de l'empreinte intérieure d'une main. On peut également prévoir des formes de surface portant l'abrasif ayant des profils convexes et/ou concaves afin d'adapter la surface portant l'abrasif à la surface à poncer.Of course, the invention is not limited to the embodiment described and it is possible to make alternative embodiments without departing from its scope. In particular, it is possible to provide, in place of the gripping grooves, a form of ergonomic gripping block taking up the shape of the interior imprint of a hand. It is also possible to provide surface shapes carrying the abrasive having convex and / or concave profiles in order to adapt the surface carrying the abrasive to the surface to be sanded.

Bien que l'on ait prévu des moyens permettant une désolidarisation de la plaque support rigide tant du côté du bloc de préhension que du coté de la feuille d'abrasif, on peut, si on le souhaite pour des raisons d'économie de fabri­cation,prévoir une fixation définitive de l'un ou plusieurs de ces éléments entre eux.Although means have been provided for separating the rigid support plate both from the side of the gripping block and from the side of the abrasive sheet, it is possible, if desired for reasons of manufacturing economy, provide for a final fixing of one or more of these elements between them.

Claims (3)

1. Cale à poncer caractérisée en ce qu'elle comprend un bloc de préhension (1) réalisé en un matériau semi-rigide, une plaque support rigide (2) fixée par une face (3) au bloc de préhension (1),et un abrasif (4) fixé sur une face (5) de la plaque support opposée à la face fixée au bloc de préhension (1).1. Sanding block characterized in that it comprises a gripping block (1) made of a semi-rigid material, a rigid support plate (2) fixed by one face (3) to the gripping block (1), and an abrasive (4) fixed on a face (5) of the support plate opposite to the face fixed to the gripping block (1). 2. Cale à poncer selon la revendication 1, carac­térisée en ce que la plaque support rigide (2) est fixée au bloc de préhension (1) par des moyens de fixation auto-­agrippants (9,10).2. Sanding block according to claim 1, characterized in that the rigid support plate (2) is fixed to the gripping block (1) by hook-and-loop fastening means (9,10). 3. Cale à poncer selon la revendication 1 ou 2 caractérisée en ce que l'abrasif (4) est supporté par une feuille fixée à la plaque support rigide (2) par des moyens de fixation auto-agrippants (15,11).3. Sanding block according to claim 1 or 2 characterized in that the abrasive (4) is supported by a sheet fixed to the rigid support plate (2) by hook-and-loop fastening means (15,11).
EP89401807A 1988-07-08 1989-06-26 Sanding bloc Withdrawn EP0351273A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8809340A FR2633861B1 (en) 1988-07-08 1988-07-08 SANDING HOLDER
FR8809340 1988-07-08

Publications (1)

Publication Number Publication Date
EP0351273A1 true EP0351273A1 (en) 1990-01-17

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ID=9368278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401807A Withdrawn EP0351273A1 (en) 1988-07-08 1989-06-26 Sanding bloc

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EP (1) EP0351273A1 (en)
FR (1) FR2633861B1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0579847A1 (en) * 1989-03-07 1994-01-26 Michael J. Demers Contour sanding device
US5309681A (en) * 1991-07-22 1994-05-10 Christopher Cheney Conformable sanding assembly
EP0904897A2 (en) * 1997-09-17 1999-03-31 Corcos S.r.l. Kit of sanding blocks and sanding blocks to treat variously shaped surfaces
EP1260317A2 (en) * 2001-05-13 2002-11-27 Jonni Nielsen Svend Hand grinding tool comprising a composite structure
WO2007103487A1 (en) * 2006-03-09 2007-09-13 Full Circle International, Inc. Tool for working on a surface
EP1867432A1 (en) * 2003-05-16 2007-12-19 Full Circle International, Inc. Hand manipulated tool
ITFI20080203A1 (en) * 2008-10-23 2010-04-24 Corcos S R L DEVICE FOR SANDING OF SURFACES

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991596A (en) * 1959-08-07 1961-07-11 Roy J Walters Back-up pad and abrasive sheet
EP0112405A1 (en) * 1982-12-24 1984-07-04 Hans J. Fabritius Attaching element to be employed in grinding and polishing machines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991596A (en) * 1959-08-07 1961-07-11 Roy J Walters Back-up pad and abrasive sheet
EP0112405A1 (en) * 1982-12-24 1984-07-04 Hans J. Fabritius Attaching element to be employed in grinding and polishing machines

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0579847A1 (en) * 1989-03-07 1994-01-26 Michael J. Demers Contour sanding device
US5309681A (en) * 1991-07-22 1994-05-10 Christopher Cheney Conformable sanding assembly
EP0635335A1 (en) * 1991-07-22 1995-01-25 Christopher Cheney A conformable sanding device incorporating a flexible attachment means
EP0904897A2 (en) * 1997-09-17 1999-03-31 Corcos S.r.l. Kit of sanding blocks and sanding blocks to treat variously shaped surfaces
EP0904897A3 (en) * 1997-09-17 2000-11-15 Corcos S.r.l. Kit of sanding blocks and sanding blocks to treat variously shaped surfaces
EP1260317A2 (en) * 2001-05-13 2002-11-27 Jonni Nielsen Svend Hand grinding tool comprising a composite structure
EP1260317A3 (en) * 2001-05-13 2003-08-06 Jonni Nielsen Svend Hand grinding tool comprising a composite structure
EP1867432A1 (en) * 2003-05-16 2007-12-19 Full Circle International, Inc. Hand manipulated tool
WO2007103487A1 (en) * 2006-03-09 2007-09-13 Full Circle International, Inc. Tool for working on a surface
US7670210B2 (en) 2006-03-09 2010-03-02 Full Circle International, Inc. Tool for working on a surface
ITFI20080203A1 (en) * 2008-10-23 2010-04-24 Corcos S R L DEVICE FOR SANDING OF SURFACES
EP2179819A1 (en) * 2008-10-23 2010-04-28 Corcos S.r.l. Device for sandpapering surfaces

Also Published As

Publication number Publication date
FR2633861A1 (en) 1990-01-12
FR2633861B1 (en) 1994-10-21

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