ES2300725T5 - DEVICE THAT INTEGRATES AN ABRASIVE DISK FOR A PORTABLE ELECTRIC RECTIFIER. - Google Patents

DEVICE THAT INTEGRATES AN ABRASIVE DISK FOR A PORTABLE ELECTRIC RECTIFIER. Download PDF

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Publication number
ES2300725T5
ES2300725T5 ES04356090T ES04356090T ES2300725T5 ES 2300725 T5 ES2300725 T5 ES 2300725T5 ES 04356090 T ES04356090 T ES 04356090T ES 04356090 T ES04356090 T ES 04356090T ES 2300725 T5 ES2300725 T5 ES 2300725T5
Authority
ES
Spain
Prior art keywords
abrasive
disc
adhesive
microperforations
abrasive disk
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.)
Expired - Lifetime
Application number
ES04356090T
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Spanish (es)
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ES2300725T3 (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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MBH Developpement SARL
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Application filed by MBH Developpement SARL filed Critical MBH Developpement SARL
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Publication of ES2300725T3 publication Critical patent/ES2300725T3/en
Publication of ES2300725T5 publication Critical patent/ES2300725T5/en
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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

El invento hace referencia al sector técnico de la rectificadoras portátiles y a los discos abrasivos que se adaptan a las mismas. The invention refers to the technical sector of portable grinders and abrasive discs that adapt to them.

De acuerdo con la técnica anterior, representada en la figura 1, la rectificadora o esmeriladora portátil consta, encima de la parte motriz, de una campana (1) con una abertura axial para el paso de un eje de tracción (no representado). Esta campana presenta, en su periferia, una fila de cerdas (2) de estanqueidad que se apoyan sobre la parte de material a rectificar. La campana presenta, en su cara posterior (1a), un conducto (1b) que permite la fijación de un tubo flexible de aspiración, no representado, y medios en voladizo (1c) para el anclaje de la rectificadora eléctrica portátil. La campana recibe un primer subconjunto (A), que incluye una almohadilla de espuma According to the prior art, represented in Figure 1, the portable grinder or grinder consists, on top of the driving part, of a bell (1) with an axial opening for the passage of a traction shaft (not shown). This bell has, on its periphery, a row of bristles (2) that are supported on the part of material to be rectified. The hood has, on its rear face (1a), a conduit (1b) that allows the fixing of a flexible suction tube, not shown, and cantilever means (1c) for anchoring the portable electric grinding machine. The bell receives a first subset (A), which includes a foam pad

(3) y un disco (4), cuya cara expuesta (4a) está fabricada con medios autoadhesivos de los conocidos bajo la marca VELCRO, constituyendo dicha cara expuesta la parte macho de la fijación. La unión del disco y de la almohadilla se efectúa por medio de una capa adhesiva (5) dispuesta de forma regular haciendo interfaz entre el disco y la almohadilla. (3) and a disc (4), whose exposed face (4a) is made of self-adhesive means known as VELCRO, said exposed face being the male part of the fastener. The union of the disc and the pad is effected by means of an adhesive layer (5) arranged regularly making interface between the disc and the pad.

El segundo subconjunto (B), que está unido y fijado al primer subconjunto, está constituido por el propio disco abrasivo (6), que también está fijado de forma adhesiva (7) de acuerdo con una capa adaptada a un disco (8) cuya cara expuesta (8a) está constituida por medios autoadhesivos del tipo VELCRO, constituyendo la parte hembra de la fijación. De este modo, dicha parte (8a) se une por enganche al primer subconjunto (A), a la parte macho (4a) formada en el disco (4). De esta manera, los dos subconjuntos (A-B) se encuentran en el interior de la campana mencionada anteriormente. En la figura 1 se ha representando este conjunto de acuerdo con la técnica anterior. The second subset (B), which is attached and fixed to the first subset, is constituted by the abrasive disc itself (6), which is also adhesively fixed (7) in accordance with a layer adapted to a disc (8) whose exposed face (8a) is constituted by self-adhesive means of the VELCRO type, constituting the female part of the fixation. Thus, said part (8a) is connected by hooking to the first subset (A), to the male part (4a) formed in the disk (4). In this way, the two subsets (A-B) are inside the hood mentioned above. Figure 1 depicts this set according to the prior art.

El problema planteado reside en la evacuación de las partículas abrasivas y de los materiales que surgen como consecuencia del funcionamiento de la rectificadora. De hecho, se constata una cierta dificultad en cuanto a su evacuación, sirviendo la capa adhesiva (7) de barrera de estanqueidad. The problem is the evacuation of abrasive particles and materials that arise as a result of the operation of the grinding machine. In fact, there is a certain difficulty regarding its evacuation, the adhesive layer (7) serving as a sealing barrier.

Por la patente E nº 1.177.861 se conoce el concepto de realizar perforaciones en una banda abrasiva en continuo, realizándose estas perforaciones en una parte del espesor de la banda sin efecto de evacuación de las partículas abrasivas, siendo diferentes las condiciones de intervención del objeto del invento. The concept of performing perforations in a continuous abrasive belt is known from patent E No. 1,177,861, these perforations being carried out in a part of the thickness of the strip without the effect of evacuation of the abrasive particles, the intervention conditions of the object being different of the invention

Por la patente US 5 810 650 se conoce un disco abrasivo de acuerdo con el preámbulo de la reivindicación 1. An abrasive disk according to the preamble of claim 1 is known from US 5 810 650.

Por lo tanto, el objetivo buscado de acuerdo con el invento era remediar el problema mencionado anteriormente buscando una solución simple para poner en práctica. Therefore, the objective sought in accordance with the invention was to remedy the problem mentioned above by seeking a simple solution to implement.

De acuerdo con una primera característica, el dispositivo integra la característica de la reivindicación 1. According to a first feature, the device integrates the feature of claim 1.

Estas características y otras se desprenderán claramente de la siguiente descripción. These and other characteristics will be clear from the following description.

Para fijar el objeto del invento ilustrado de una manera no limitativa, se hace referencia a las figuras de los dibujos, en los que: In order to fix the object of the illustrated invention in a non-limiting manner, reference is made to the figures of the drawings, in which:

--
la figura 1 es una vista, de acuerdo con la técnica anterior, de un conjunto de una campana adaptable a una rectificadora o esmeriladora eléctrica portátil que incluye el disco abrasivo. Figure 1 is a view, according to the prior art, of an assembly of a bell adaptable to a portable grinder or electric grinder that includes the abrasive disk.

--
la figura 2 es una vista de los componentes adaptables, de acuerdo con el invento, de la campana mencionada anteriormente. Figure 2 is a view of the adaptable components, according to the invention, of the hood mentioned above.

--
la figura 3 es una vista en corte de acuerdo con la figura 2, por la línea A.A de la misma. Figure 3 is a sectional view according to Figure 2, along the line A.A thereof.

--
la figura 4 es una vista parcial a gran escala que ilustra la pieza de disco abrasivo. Figure 4 is a partial large-scale view illustrating the abrasive disk part.

--
la figura 5 es una vista parcial en corte que ilustra la evacuación de las partículas. Figure 5 is a partial sectional view illustrating the evacuation of the particles.

Con el fin de hacer más concreto el objeto del invento, a continuación se describe de una manera no limitativa ilustrada en las figuras de los dibujos. In order to make the object of the invention more concrete, it is described below in a non-limiting manner illustrated in the figures of the drawings.

El invento tiene como objetivo realizar, de manera nueva, el segundo subconjunto, que incluye el disco abrasivo. The invention aims to make, in a new way, the second subset, which includes the abrasive disc.

Este subconjunto (C) consta de una pieza de disco abrasivo (10), fabricada de corindón u otros materiales, que en su superficie abrasiva (10a) presenta una multitud de microperforaciones (10b). Esta parte abrasiva está unida por una capa adhesiva (11) a una parte subyacente (12) fabricada con tela no tejida, que presenta un cierto espesor y que sirve de medio de filtración. Las microperforaciones (10b) realizadas en la parte abrasiva atraviesan totalmente la capa adhesiva (11) y desembocan en el espesor (e) de la segunda parte (12) de tela no tejida. This subset (C) consists of a piece of abrasive disk (10), made of corundum or other materials, which on its abrasive surface (10a) has a multitude of microperforations (10b). This abrasive part is joined by an adhesive layer (11) to an underlying part (12) made of nonwoven fabric, which has a certain thickness and serves as a filtration medium. The microperforations (10b) made in the abrasive part completely cross the adhesive layer (11) and flow into the thickness (e) of the second part (12) of nonwoven fabric.

Además, y como se representa en la figura 5, las microperforaciones (10b), realizadas en forma de estampado de la superficie abrasiva, la deforman y constituyen aperturas de aire de aspiración, pasando las partículas y el polvo obligatoriamente por las aperturas. Cuando se detiene la aspiración, las partículas esmeriladas caen de forma natural por el efecto de la gravedad. De este modo, por esta estructura, la evacuación de las partículas y polvo a través del filtro constituido se realiza por aspiración lateral gracias a la concepción de la campana (1) asociada a la rectificadora eléctrica portátil. In addition, and as shown in Figure 5, the microperforations (10b), made in the form of stamping the abrasive surface, deform it and constitute suction air openings, the particles and the dust passing through the openings necessarily. When the aspiration is stopped, the ground particles fall naturally due to the effect of gravity. Thus, by this structure, the evacuation of particles and dust through the constituted filter is carried out by lateral aspiration thanks to the conception of the hood (1) associated with the portable electric grinding machine.

De este modo, esta disposición particular permite un mejor dominio de las partículas de los materiales rectificados y Thus, this particular arrangement allows better mastery of the particles of the rectified materials and

5 esmerilados, que de esta manera atraviesan la capa de tela no tejida (12), que sirve de filtro, para ser evacuadas lateralmente por aspiración. De este modo, la capa de tela no tejida (12) es fijada y enganchada a la parte macho (4a) autoadhesiva en forma de ganchos del disco (4) asociado a la almohadilla (3) de espuma para garantizar el mantenimiento del conjunto. 5 grids, which thus pass through the layer of nonwoven fabric (12), which serves as a filter, to be evacuated laterally by aspiration. In this way, the non-woven fabric layer (12) is fixed and hooked to the self-adhesive male part (4a) in the form of disk hooks (4) associated with the foam pad (3) to guarantee the maintenance of the assembly.

De acuerdo con una disposición ventajosa, representada en la figura 4, el abrasivo de corindón es mantenido por According to an advantageous arrangement, represented in Figure 4, the corundum abrasive is maintained by

10 una impregnación de látex coloidal (10c), que constituye un revestimiento muy fino y cuya propiedad y función, además de mantener los granos abrasivos, es hacer deslizar con más facilidad las partículas esmeriladas. De este modo, esta impregnación (10c) constituye un revestimiento anti-ensuciamiento. 10 an impregnation of colloidal latex (10c), which constitutes a very fine coating and whose property and function, in addition to maintaining the abrasive grains, is to make the ground particles slide more easily. In this way, this impregnation (10c) constitutes an anti-fouling coating.

Gracias a la nueva y original disposición del invento, además de la mejor evacuación de las partículas de los materiales esmerilados y rectificados se ha constatado una mayor vida útil del propio disco abrasivo (10). La Thanks to the new and original arrangement of the invention, in addition to the better evacuation of the particles from the ground and ground materials, a longer life of the abrasive disc itself (10) has been observed. The

15 profundidad de las aberturas formadas por las microperforaciones (10b) en la pieza de disco abrasivo permite una ventilación completa del subconjunto (c) y por lo tanto evita un ensuciamiento de la propia parte abrasiva (10), permitiendo de este modo una vida útil más larga. The depth of the openings formed by the microperforations (10b) in the abrasive disc piece allows a complete ventilation of the subset (c) and therefore prevents fouling of the abrasive part itself (10), thus allowing a useful life longer.

Las ventajas se desprenden claramente del invento. Se destaca la simplicidad del mismo y su rápida puesta en práctica y la mejor calidad de la aspiración de las partículas y una larga vida útil mejorada del disco abrasivo. The advantages clearly emerge from the invention. Its simplicity and its rapid implementation and the best quality of the aspiration of the particles and a long improved life of the abrasive disc are highlighted.

20 twenty

Claims (1)

REIVINDICACIONES -1-Dispositivo que integra un disco abrasivo para una rectificadora eléctrica portátil que consta de una pieza de disco abrasivo (10) que en su superficie abrasiva (10a) presenta una multitud de microperforaciones (10b), estando unida dicha parte abrasiva por una capa adhesiva (11) a una parte subyacente (12) fabricada con tela no tejida, que 5 sirve de medio de filtración, atravesando las otras microperforaciones la capa adhesiva totalmente y desembocando en el espesor de la segunda parte (12) de tela no tejida, permitiendo el conjunto la difusión y evacuación de las partículas des materiales rectificados y esmerilados, caracterizado porque el dispositivo integra el disco abrasivo en la parte interior de una campana (1) unida a dicha rectificadora eléctrica portátil, recibiendo dicha campana un primer subconjunto (A) que incluye una almohadilla de espuma y un disco (4), cuya cara expuesta está fabricada con -1-Device that integrates an abrasive disk for a portable electric grinder consisting of a piece of abrasive disk (10) that on its abrasive surface (10a) has a multitude of microperforations (10b), said abrasive part being joined by a layer adhesive (11) to an underlying part (12) made of nonwoven fabric, which serves as a filtration medium, the other microperforations passing through the adhesive layer completely and leading to the thickness of the second part (12) of nonwoven fabric, the assembly allowing the diffusion and evacuation of the particles of ground and ground materials, characterized in that the device integrates the abrasive disk into the inner part of a bell (1) attached to said portable electric grinder, said bell receiving a first subset (A) which includes a foam pad and a disc (4), whose exposed face is made of 10 medios autoadhesivos y que constituye la parte macho de la fijación, garantizando una capa adhesiva (5) la unión del disco (4) y de la almohadilla, 10 self-adhesive means and constituting the male part of the fixing, guaranteeing an adhesive layer (5) the union of the disc (4) and the pad, porque la capa de tela no tejida (12), que constituye la parte hembra de la fijación, se fija y se engancha a la parte macho (4a) autoadhesiva en forma de ganchos del disco (4) unido a la almohadilla (3) para garantizar el mantenimiento del conjunto, because the layer of non-woven fabric (12), which constitutes the female part of the fastener, is fixed and hooked to the self-adhesive male part (4a) in the form of hooks of the disc (4) attached to the pad (3) to guarantee the maintenance of the whole, 15 y porque el dispositivo permite la evacuación lateral de polvo, 15 and because the device allows lateral dust evacuation, y porque el abrasivo de corindón es mantenido por una impregnación de látex coloidal (10c), que constituye un revestimiento muy fino y que, además de la función de mantener los granos abrasivos, permite el deslizamiento de las partículas esmeriladas, and because the corundum abrasive is maintained by an impregnation of colloidal latex (10c), which constitutes a very fine coating and which, in addition to the function of maintaining the abrasive grains, allows the sliding of the ground particles, y porque las microperforaciones (10b) realizadas en forma de estampado de la superficie abrasiva la deforman y 20 constituyen aperturas de aire de aspiración. and because the microperforations (10b) made in the form of stamping the abrasive surface deform it and 20 constitute suction air openings.
ES04356090T 2003-06-16 2004-06-08 DEVICE THAT INTEGRATES AN ABRASIVE DISK FOR A PORTABLE ELECTRIC RECTIFIER. Expired - Lifetime ES2300725T5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307396A FR2856323B1 (en) 2003-06-16 2003-06-16 ABRASIVE DISC FOR ELECTROMAGNETIC MACHINE IN MEULER
FR0307396 2003-06-16

Publications (2)

Publication Number Publication Date
ES2300725T3 ES2300725T3 (en) 2008-06-16
ES2300725T5 true ES2300725T5 (en) 2011-05-03

Family

ID=33396803

Family Applications (1)

Application Number Title Priority Date Filing Date
ES04356090T Expired - Lifetime ES2300725T5 (en) 2003-06-16 2004-06-08 DEVICE THAT INTEGRATES AN ABRASIVE DISK FOR A PORTABLE ELECTRIC RECTIFIER.

Country Status (5)

Country Link
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
EP1838497B1 (en) 2004-12-30 2016-07-13 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
US7258705B2 (en) 2005-08-05 2007-08-21 3M Innovative Properties Company Abrasive article and methods of making same
US7244170B2 (en) 2005-09-16 2007-07-17 3M Innovative Properties Co. 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
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

Family Cites Families (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
DE29520566U1 (en) * 1995-12-29 1996-02-22 Jöst, Peter, 69518 Abtsteinach Abrasives that can be adapted directly or indirectly with a machine or a manually operated abrasive holder as well as a suitable adapter

Also Published As

Publication number Publication date
DE602004012197T2 (en) 2009-03-19
ATE387988T1 (en) 2008-03-15
EP1488888A1 (en) 2004-12-22
EP1488888B1 (en) 2008-03-05
ES2300725T3 (en) 2008-06-16
DE602004012197D1 (en) 2008-04-17
DE602004012197T3 (en) 2011-07-28
FR2856323A1 (en) 2004-12-24
EP1488888B2 (en) 2011-03-02
FR2856323B1 (en) 2007-03-23

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