FR2856323A1 - ABRASIVE DISC FOR ELECTROPORTATIVE GRINDING MACHINE - Google Patents

ABRASIVE DISC FOR ELECTROPORTATIVE GRINDING MACHINE Download PDF

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Publication number
FR2856323A1
FR2856323A1 FR0307396A FR0307396A FR2856323A1 FR 2856323 A1 FR2856323 A1 FR 2856323A1 FR 0307396 A FR0307396 A FR 0307396A FR 0307396 A FR0307396 A FR 0307396A FR 2856323 A1 FR2856323 A1 FR 2856323A1
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France
Prior art keywords
abrasive
disc
layer
abrasive disc
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.)
Granted
Application number
FR0307396A
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French (fr)
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FR2856323B1 (en
Inventor
Marc Bottazzi
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.)
MBH Developpement SARL
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Individual
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33396803&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR2856323(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to FR0307396A priority Critical patent/FR2856323B1/en
Priority to DE602004012197T priority patent/DE602004012197T3/en
Priority to EP04356090A priority patent/EP1488888B2/en
Priority to ES04356090T priority patent/ES2300725T5/en
Priority to AT04356090T priority patent/ATE387988T1/en
Publication of FR2856323A1 publication Critical patent/FR2856323A1/en
Application granted granted Critical
Publication of FR2856323B1 publication Critical patent/FR2856323B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24D9/08—Circular back-plates for carrying flexible material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
    • 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
    • B24D13/147—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

The disk has an abrasive disk part (10) with micro-perforations (10b) on its abrasive surface (10a). The abrasive part is integrated to a lower part (12) by a gum layer (11), where the lower part is made of non-woven fabric and acts as a filtering unit. The perforations pass through the gum layer and open into the thickness of the lower part (12).

Description

DISQUE ABRASIF POUR MACHINE ELECTROPORTATIVE A MEULERABRASIVE DISC FOR ELECTROPORTATIVE GRINDING MACHINE

L'invention se rattache au secteur technique des machines portatives à meuler et aux disques abrasifs s'y adaptant.  The invention relates to the technical sector of portable grinding machines and to abrasive discs adapting thereto.

Selon l'art antérieur, représenté figure 1, la machine portative à meuler, à abraser, comprend, en bout de la partie motrice, une cloche (1) avec une ouverture axiale pour le passage d'un axe d'entraînement (non 10 représenté). Cette cloche présente, sur sa périphérie, une rangée de poils (2) d'étanchéité venant en appui sur la partie de matériau à meuler. La cloche présente, sur sa face arrière (la), un conduit (lb) permettant la fixation d'un flexible d'aspiration, non représenté, et des moyens en saillies (lc) pour l'ancrage de la machine électroportative. La cloche reçoit un premier sous15 ensemble (A) incluant une galette en mousse (3) et un disque (4) dont la face apparente (4a) est réalisée avec des moyens auto-agrippant du type de ceux connus sous la marque VELCRO, ladite face apparente constituant la partie mâle de la fixation. La liaison du disque et de la galette s'effectue par une couche de colle (5) disposée régulièrement en faisant interface entre le 20 disque et la galette.  According to the prior art, represented in FIG. 1, the portable grinding and abrading machine comprises, at the end of the driving part, a bell (1) with an axial opening for the passage of a drive axis (not 10 represented). This bell has, on its periphery, a row of sealing bristles (2) coming to bear on the part of material to be ground. The bell has, on its rear face (la), a conduit (lb) allowing the attachment of a suction hose, not shown, and projecting means (lc) for anchoring the power tool. The bell receives a first sub-assembly (A) including a foam wafer (3) and a disc (4) whose visible face (4a) is produced with hook-and-loop means of the type of those known under the brand VELCRO, said visible face constituting the male part of the binding. The connection of the disc and the wafer is effected by a layer of glue (5) arranged regularly by interfacing between the disc and the wafer.

Le second sous-ensemble (B) qui est rapporté et fixé sur le premier sousensemble est constitué par le disque abrasif (6) lui-même qui est fixé également par collage (7) selon une couche appropriée sur un disque (8) 25 dont la face apparente (8a) est constituée par des moyens auto- agrippant du type VELCRO en constituant la partie femelle de la fixation. Ladite partie (8a) vient ainsi se solidariser par accrochage au premier sousensemble (A) à la partie mâle (4a) formée sur le disque (4). Les deux sous-ensembles (A - B) se trouvent ainsi à l'intérieur de la cloche précitée. On a représenté, figure 1, cet ensemble, selon l'art antérieur.  The second sub-assembly (B) which is attached and fixed to the first sub-assembly consists of the abrasive disc (6) itself which is also fixed by gluing (7) in a suitable layer on a disc (8) 25 of which the visible face (8a) is constituted by self-gripping means of the VELCRO type by constituting the female part of the binding. Said part (8a) thus comes together by hooking to the first subassembly (A) to the male part (4a) formed on the disc (4). The two sub-assemblies (A - B) are thus located inside the aforementioned bell. FIG. 1 shows this assembly according to the prior art.

Le problème posé réside dans l'évacuation des particules abrasives et 5 des matières qui apparaissent de par le fonctionnement de la machine. On constate, en effet, une certaine difficulté à leur évacuation, la couche de colle (7) faisant office de barrière d'étanchéité.  The problem posed lies in the removal of the abrasive particles and the materials which appear by the operation of the machine. There is, in fact, a certain difficulty in their evacuation, the adhesive layer (7) acting as a sealing barrier.

On connaît, par le brevet EP n 1.177.861, le concept de réaliser des 10 perforations sur une bande abrasive en continu, ces perforations étant établies sur une partie de l'épaisseur de la bande sans effet d'évacuation des particules abrasives, les conditions d'intervention étant différentes de l'objet de l'invention.  The concept of producing perforations on a continuous abrasive strip is known from patent No. 1,177,861, these perforations being established over part of the thickness of the strip without effect of evacuating the abrasive particles, the intervention conditions being different from the subject of the invention.

Le but recherché, selon l'invention, était donc de remédier au problème posé précité en recherchant une solution simple à mettre en oeuvre.  The aim sought, according to the invention, was therefore to remedy the aforementioned problem by seeking a solution which is simple to implement.

Selon une première caractéristique, le disque abrasif pour machine 20 électroportative à meuler comprend une partie discale abrasive présentant sur sa surface abrasive une multitude de micro-perforations, ladite partie abrasive étant solidarisée par une couche de colle à une partie sous-jacente réalisée en tissu non tissé, faisant office de moyen de filtration, et en ce que les autres micro-perforations traversent intégralement la couche de colle et 25 débouchent dans l'épaisseur de la partie seconde en tissu non tissé, l'ensemble permettant la déformation des particules des matières meulées et abrasées.  According to a first characteristic, the abrasive disc for an electric portable grinding machine comprises an abrasive disc part having on its abrasive surface a multitude of micro-perforations, said abrasive part being secured by a layer of adhesive to an underlying part made of fabric. non-woven, acting as a filtration means, and in that the other micro-perforations pass entirely through the layer of adhesive and open into the thickness of the second part of non-woven fabric, the assembly allowing the deformation of the particles of the ground and abraded materials.

Ces caractéristiques et d'autres encore ressortiront bien de la suite de  These and other characteristics will become apparent from the following

la description.the description.

Pour fixer l'objet de l'invention illustré d'une manière non limitative aux figures des dessins o: - la figure 1 est une vue, selon l'art antérieur, d'un ensemble d'une cloche adaptable sur machine électroportative à meuler ou à abraser incluant le disque abrasif.  To fix the object of the invention illustrated in a nonlimiting manner in the figures of the drawings o: - Figure 1 is a view, according to the prior art, of a set of a bell adaptable on an electric portable grinding machine or to abrade including the abrasive disc.

- la figure 2 est une vue des composants, selon l'invention, adaptables de la cloche précitée.  - Figure 2 is a view of the components, according to the invention, adaptable from the aforementioned bell.

- la figure 3 est une vue en coupe selon la figure 2, ligne A.A de celleci.  - Figure 3 is a sectional view according to Figure 2, line A.A thereof.

Afin de rendre plus concret l'objet de l'invention, on le décrit maintenant d'une manière non limitative illustrée aux figures des dessins.  In order to make the object of the invention more concrete, it is now described in a nonlimiting manner illustrated in the figures of the drawings.

L'invention vise à réaliser, de manière nouvelle, le deuxième sousensemble qui inclut le disque abrasif. 20 Ce sous-ensemble (C) comprend une partie discale abrasive (10), constituée en corindon ou autres matériaux, présentant sur sa surface abrasive (10a) une multitude de micro-perforations (10b). Cette partie abrasive est solidarisée par une couche de colle (11) à une partie sous25 jacente (12) réalisée en tissu non tissé présentant une certaine épaisseur, faisant office de moyen de filtration. Les micros perforations (lOb) établies sur la partie abrasive, traversent intégralement la couche de colle (1l) et débouchent dans l'épaisseur (e) de la partie seconde (12) en tissu non tissé.  The invention aims to produce, in a new way, the second subassembly which includes the abrasive disc. This sub-assembly (C) comprises an abrasive disc part (10), made of corundum or other materials, having on its abrasive surface (10a) a multitude of micro-perforations (10b). This abrasive part is secured by a layer of adhesive (11) to an underlying part (12) made of nonwoven fabric having a certain thickness, serving as a filtration means. The micro perforations (10b) established on the abrasive part, completely pass through the adhesive layer (11) and emerge in the thickness (e) of the second part (12) of nonwoven fabric.

Cette disposition particulière permet ainsi une meilleure prise en 5 charge des particules des matières meulées et abrasées qui traversent ainsi la couche de tissu non tissé (12), faisant office de filtre, pour être évacuées par aspiration. La couche de tissu non tissé (12) est ainsi fixée et accrochée avec la partie mâle (4a) auto-agrippante en forme de crochets du disque (4) associé à la galette (3) en mousse pour assurer le maintien de l'ensemble. 10 Par la disposition nouvelle et originale de l'invention, outre la meilleure évacuation des particules des matières abrasées et meulées, on a constaté une plus grande longévité du disque abrasif (10) lui-même. La profondeur des ouvertures formées par les micros perforations (lOb) dans la 15 partie disque abrasive permet une aération complète du sous-ensemble (c) et donc évite un encrassage de la partie abrasive (10) elle-même, permettant ainsi une plus grande longévité.  This particular arrangement thus allows better handling of the particles of ground and abraded materials which thus pass through the layer of nonwoven fabric (12), acting as a filter, to be evacuated by suction. The layer of non-woven fabric (12) is thus fixed and hung with the male part (4a) hook and loop in the form of hooks of the disc (4) associated with the wafer (3) in foam to ensure the maintenance of the whole. . By the new and original arrangement of the invention, in addition to the better removal of the particles from the abraded and ground materials, it has been found to have a longer life of the abrasive disc (10) itself. The depth of the openings formed by the micro perforations (10b) in the abrasive disc part allows complete ventilation of the sub-assembly (c) and therefore avoids fouling of the abrasive part (10) itself, thus allowing greater longevity.

Les avantages ressortent bien de l'invention. On souligne la 20 simplicité de celle-ci et sa mise en oeuvre rapide et la meilleure qualité de l'aspiration des particules et une grande longévité améliorée du disque abrasif.  The advantages emerge clearly from the invention. The simplicity of this is emphasized and its rapid implementation and the best quality of the suction of the particles and a long improved durability of the abrasive disc.

Claims (2)

REVENDICATIONS -1- Disque abrasif pour machine électroportative à meuler, caractérisé en ce qu'il comprend une partie discale abrasive (10) présentant sur sa surface abrasive (1 Oa) une multitude de micro-perforations (10Ob), ladite partie abrasive étant solidarisée par une couche de colle (11) à une partie sousjacente (12) réalisée en tissu non tissé, faisant office de moyen de filtration, 10 et en ce que les autres micro-perforations traversent intégralement la couche de colle et débouchent dans l'épaisseur de la partie seconde (12) en tissu non tissé, l'ensemble permettant la déformation des particules des matières meulées et abrasées.  -1- Abrasive disc for an electric portable grinding machine, characterized in that it comprises an abrasive disc part (10) having on its abrasive surface (1 Oa) a multitude of micro-perforations (10Ob), said abrasive part being secured by a layer of glue (11) to an underlying part (12) made of nonwoven fabric, acting as a filtration means, and in that the other micro-perforations pass entirely through the layer of glue and open into the thickness of the second part (12) of nonwoven fabric, the assembly allowing the deformation of the particles of ground and abraded materials. -2- Disque abrasif, selon la revendication 1, caractérisé en ce qu'il s'intègre dans la partie intérieure d'une cloche (1) solidaire de ladite machine électroportative, ladite cloche recevant un premier sous-ensemble (A) incluant une galette en mousse et un disque (4) dont la face apparente est réalisée avec des moyens auto-agrippant et constituant la partie mâle de 20 la fixation, une couche de colle (5) assurant la liaison du disque (4) et de la galette, et en ce que la couche de tissu non tissé (12) constituant la partie femelle de la fixation, se fixant et s'accrochant à la partie mâle (4a) auto-agrippante en forme de crochets du disque (4) associé à la galette (3) pour assurer le 25 maintien de l'ensemble.  -2- Abrasive disc, according to claim 1, characterized in that it is integrated in the interior part of a bell (1) integral with said power tool, said bell receiving a first sub-assembly (A) including a foam wafer and a disc (4), the visible face of which is produced with self-gripping means and constituting the male part of the attachment, a layer of adhesive (5) ensuring the connection of the disc (4) and the wafer , and in that the layer of nonwoven fabric (12) constituting the female part of the fastening, fixing and clinging to the male part (4a) hook and loop in the form of hooks of the disc (4) associated with the wafer (3) to maintain the assembly.
FR0307396A 2003-06-16 2003-06-16 ABRASIVE DISC FOR ELECTROMAGNETIC MACHINE IN MEULER Expired - Lifetime FR2856323B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR0307396A FR2856323B1 (en) 2003-06-16 2003-06-16 ABRASIVE DISC FOR ELECTROMAGNETIC MACHINE IN MEULER
DE602004012197T DE602004012197T3 (en) 2003-06-16 2004-06-08 Device including grinding wheel for electric hand grinder
EP04356090A EP1488888B2 (en) 2003-06-16 2004-06-08 Appliance comprising a grinding disc for portable power grinder
ES04356090T ES2300725T5 (en) 2003-06-16 2004-06-08 DEVICE THAT INTEGRATES AN ABRASIVE DISK FOR A PORTABLE ELECTRIC RECTIFIER.
AT04356090T ATE387988T1 (en) 2003-06-16 2004-06-08 DEVICE INCLUDING GRINDING DISC FOR ELECTRIC HAND GRINDER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0307396A FR2856323B1 (en) 2003-06-16 2003-06-16 ABRASIVE DISC FOR ELECTROMAGNETIC MACHINE IN MEULER

Publications (2)

Publication Number Publication Date
FR2856323A1 true FR2856323A1 (en) 2004-12-24
FR2856323B1 FR2856323B1 (en) 2007-03-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR0307396A Expired - Lifetime FR2856323B1 (en) 2003-06-16 2003-06-16 ABRASIVE DISC FOR ELECTROMAGNETIC MACHINE IN MEULER

Country Status (5)

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EP (1) EP1488888B2 (en)
AT (1) ATE387988T1 (en)
DE (1) DE602004012197T3 (en)
ES (1) ES2300725T5 (en)
FR (1) FR2856323B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070094811A (en) 2004-12-30 2007-09-21 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Abrasive article and methods of making same
US7258705B2 (en) 2005-08-05 2007-08-21 3M Innovative Properties Company Abrasive article and methods of making same
US7252694B2 (en) 2005-08-05 2007-08-07 3M Innovative Properties Company Abrasive article and methods of making same
US7390244B2 (en) 2005-09-16 2008-06-24 3M Innovative Properties Company Abrasive article mounting assembly and methods of making same
US7393269B2 (en) 2005-09-16 2008-07-01 3M Innovative Properties Company Abrasive filter assembly and methods of making same
US7244170B2 (en) 2005-09-16 2007-07-17 3M Innovative Properties Co. Abrasive article and methods of making same
US7338355B2 (en) 2006-06-13 2008-03-04 3M Innovative Properties Company Abrasive article and methods of making and using the same
DK177694B1 (en) * 2012-12-04 2014-03-10 Poul Erik Jespersen Kadicma Rotary machining tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4287685A (en) * 1978-12-08 1981-09-08 Miksa Marton Pad assembly for vacuum rotary sander
US5810650A (en) * 1995-12-29 1998-09-22 Joest; Peter Grinding member and an adapter for mounting the grinding member on a grinding machine or a grinding member holder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4287685A (en) * 1978-12-08 1981-09-08 Miksa Marton Pad assembly for vacuum rotary sander
US5810650A (en) * 1995-12-29 1998-09-22 Joest; Peter Grinding member and an adapter for mounting the grinding member on a grinding machine or a grinding member holder

Also Published As

Publication number Publication date
EP1488888A1 (en) 2004-12-22
DE602004012197D1 (en) 2008-04-17
ATE387988T1 (en) 2008-03-15
ES2300725T3 (en) 2008-06-16
DE602004012197T2 (en) 2009-03-19
DE602004012197T3 (en) 2011-07-28
EP1488888B2 (en) 2011-03-02
ES2300725T5 (en) 2011-05-03
EP1488888B1 (en) 2008-03-05
FR2856323B1 (en) 2007-03-23

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