EP0112405B1 - Elément d'attache utilisable dans des machines à meuler et à polir - Google Patents

Elément d'attache utilisable dans des machines à meuler et à polir Download PDF

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Publication number
EP0112405B1
EP0112405B1 EP82111993A EP82111993A EP0112405B1 EP 0112405 B1 EP0112405 B1 EP 0112405B1 EP 82111993 A EP82111993 A EP 82111993A EP 82111993 A EP82111993 A EP 82111993A EP 0112405 B1 EP0112405 B1 EP 0112405B1
Authority
EP
European Patent Office
Prior art keywords
disc
layer
hook
grinding
polishing
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
Application number
EP82111993A
Other languages
German (de)
English (en)
Other versions
EP0112405A1 (fr
Inventor
Hans J. Fabritius
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP82111993A priority Critical patent/EP0112405B1/fr
Priority to AT82111993T priority patent/ATE29416T1/de
Priority to DE8282111993T priority patent/DE3277176D1/de
Publication of EP0112405A1 publication Critical patent/EP0112405A1/fr
Application granted granted Critical
Publication of EP0112405B1 publication Critical patent/EP0112405B1/fr
Expired 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
    • B24D9/085—Devices for mounting sheets on a backing plate

Definitions

  • the invention relates to an attachment element for machine tools that can be used for grinding and polishing work, with a drive disk which has an integrally formed Velcro layer on the output side and a hub on the drive side with a molded-in receiving part for connecting a flexible shaft which can be converted on a rigid barrel, and with a working disc which has a work surface coated with grinding or polishing agent on the workpiece side and a tissue layer which can be connected to the Velcro layer of the drive disc to form a Velcro bond on the drive side.
  • machine tools e.g. B. drills
  • attachment elements are known for grinding work, which are buffered on the underside of the drive disk with a foam layer. This is coated on the workpiece with a work surface with abrasive or polishing agent.
  • Such attachment elements are specially designed for use in connection with flexible shafts. Disadvantageously, such attachment elements are therefore not suitable for work which is better carried out with a rigid shaft and a high number of revolutions, whereas on the other hand with attachment elements without a foam layer when used with a flexible shaft, grinding and polishing work do not achieve optimal results.
  • the disc made of cork and rubber has the property of preventing the grinding disc from bulging out and it has a damping effect on vibrations.
  • Such a disc is highly elastic and can nestle on surfaces that are inclined to the axis of rotation.
  • a somewhat stiffer version has a cork / rubber plate that is covered with cover sheets on both sides and carries a somewhat stiffer plastic disc on the drive side and the abrasive layer on the workpiece side. These layers are also firmly glued together and cannot be removed. In the case of different grinding and polishing work, such disks must be exchanged for one another in order to optimally correspond to the respective working conditions.
  • the object of the invention is to improve and design known attachment or attachment elements for grinding machines in such a way that the disadvantages described are eliminated.
  • an attachment element for each grinding and polishing work of the type mentioned should be designed so that it for different tasks Grinding and polishing can be used on the one hand with a rigid shaft and on the other hand with a flexible shaft and can be converted quickly and easily to the respective area of application without total replacement.
  • the working disc is formed in two parts in the attachment element and consists of a fabric-backed processing disc having the working surface and a buffer disc made of deformable material such as foam, the disc surfaces of which are each formed with a Velcro or fabric layer.
  • attachment element In the attachment element according to the invention, a secure and easily detachable connection between the drive disk, buffer disk and working disk is in each case made by means of Velcro fasteners.
  • the attachment element can therefore be converted for work that does not require a highly elastic intermediate layer through a buffer disk, by simply removing this buffer disk, as a result of which the known shape of the attachment element with drive disk and work disk that can be detachably connected is produced.
  • the work surface can be designed as a polishing cloth or polishing fleece.
  • Working wheels are provided for grinding work, in which the abrasive grains are bonded with synthetic resin. With these grinding wheels, considerably longer service lives can be achieved than with prior art wheels, in which the abrasive grain is applied to a paper carrier glued to the base.
  • the Velcro layer is integrally formed on the drive pulley. This prevents the connection adhesive between the hook-and-loop layer and the drive disk from becoming detached, as in the case of a drive disk according to the prior art, by heating under high loads.
  • a shaft in which at least one section is flexible and which has a stop at the drive end of the flexible section, can be connected to a receiving part of the drive pulley in such a way that its flexible section lies outside the receiving part.
  • the flexible section of the shaft can be fixed by an attached sleeve, which can be clamped between the receiving part and the stop.
  • the front part shown in FIG. 1 has a drive disk 1 with a shaft 2 and a work disk 3 connected to the drive disk 1.
  • a Velcro layer 4 is integrally formed on the underside of the drive pulley 1, the elements of which can be hook-shaped, mushroom-shaped or T-shaped.
  • the work disk 3 is connected to the Velcro layer 4 via a fabric layer 5, which can be made of velor, for example, to form a Velcro fastener.
  • the embodiment of the front part shown in the figures is suitable for grinding work.
  • the working disk 3 is constructed in two parts and has a processing disk 6 and a foam disk 7. The connection between the processing disk 6 and the foam disk 7 is again made by a Velcro fastener.
  • the processing disk 6 is backed with a fabric layer 8, while a velcro layer 15 is applied to the foam disk 7, which consists of high-pressure PU foam or comparable materials, on the disk surface facing the processing disk.
  • the layers 5 and 15 on the disc surfaces of the foam disc can be glued, since the strength of the adhesive is not impaired by heating at the relatively low speeds required for surface grinding or polishing.
  • the fabric layer 8 is connected to the synthetic resin bed without adhesive.
  • the drive disk 1 On the drive side, the drive disk 1 has a receiving part 9, into which the shaft 2 is screwed with an end having a screw thread 10. Between screw thread 10 and a stop 11, the cross-sectional area of which is designed to facilitate the assembly of the shaft 2 as a hexagon, the shaft 2 has a flexible section 12.
  • the stop 11 merges with the drive side into a shaft part 13 which can be used, for example, in a drill chuck is.
  • the flexible section 12 lies outside the receiving part 9.
  • the flexible section 12 can be fixed for a rigid running of the shaft by a cylinder sleeve 14 which engages over the flexible section 12 and is clamped between the receiving part 9 and the stop 11.
  • the position of the cylinder sleeve 14 is indicated by dashed lines in Figure 1. If necessary, the cylinder sleeve 14 can be removed by unscrewing the shaft 2.
  • the front part enables exact grinding on flat surfaces.
  • the processing disc 6 of the front part can be placed directly in front of the working disc 1 when the foam disc 7 is removed, the two discs adhering to one another by means of a Velcro fastener. Due to the flexible shaft, precise grinding is possible.
  • the processing disc 6 can also consist of a polishing cloth or polishing fleece, so that with the front part all polishing work can be carried out.
  • grinding work can be carried out that require a rigid running of the drive pulley.
  • the connection via the Velcro fastener between the drive wheel and the processing wheel is so stable that even tissue-backed grinding wheels can be used as processing wheels.
  • Drive wheel with grinding wheel are then in machine tools, for. B. Angle grinder with suitable connection thread can be used.
  • the front part according to the invention is suitable for a variety of grinding and polishing work and therefore represents an ideal solution to the problems at hand.

Landscapes

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

Claims (4)

1. Outil adaptable pour montage en saillie sur machines de travail, pour travaux de ponçage, meulage ou polissage, comportant un plateau d'entraînement (1) présentant, du côté sortie de mouvement, une couche de crampons d'accrochage (4) et, du côté entrée de mouvement, un moyeu doté d'une partie réceptrice (9) pour le raccordement d'un arbre flexible (2) qui peut être converti pour opérer avec rigidité, et un plateau de travail (3) qui, côté outil, présente une surface de travail (6) garnie de moyens de ponçage, meulage ou polissage, et qui, côté entraînement, présente une couche de tissu (8) apte à être liée à la couche de crampons d'accrochage (4) du plateau d'entraînement (1) en établissant une liaison par accrochage, caractérisé, par le fait que le plateau de travail (3) est en deux parties, et est constitué par un disque de travail présentant la surface de travail (6), son dos étant garni de tissu, et par un disque-tampon (7) en matière déformable telle qu'une matière mousse, les deux faces de ce disque-tampon étant réalisées chacune avec une couche de crampons d'accrochage ou une couche de tissu (15, 5).
2. Outil adaptable pour montage en saillie selon revendication 1, caractérisé par le fait que la surface de travail (6) du disque de travail est constituée par des particules abrasives liées par une résine synthétique.
3. Outil adaptable pour montage en saillie selon les revendications 1 et 2, caractérisé par le fait que la surface de travail (6) du disque de travail est constituée par une étoffe ou un feutre à polir.
4. Outil adaptable pour montage en saillie selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que la portion flexible (12) de l'arbre peut être immobilisée par un manchon (14) emboîté sur elle, qui peut être bloqué entre partie réceptrice (9) et butée (11).
EP82111993A 1982-12-24 1982-12-24 Elément d'attache utilisable dans des machines à meuler et à polir Expired EP0112405B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP82111993A EP0112405B1 (fr) 1982-12-24 1982-12-24 Elément d'attache utilisable dans des machines à meuler et à polir
AT82111993T ATE29416T1 (de) 1982-12-24 1982-12-24 Fuer schleif- und polierarbeiten einsetzbares vorsatzteil bei werkmaschinen.
DE8282111993T DE3277176D1 (en) 1982-12-24 1982-12-24 Attaching element to be employed in grinding and polishing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82111993A EP0112405B1 (fr) 1982-12-24 1982-12-24 Elément d'attache utilisable dans des machines à meuler et à polir

Publications (2)

Publication Number Publication Date
EP0112405A1 EP0112405A1 (fr) 1984-07-04
EP0112405B1 true EP0112405B1 (fr) 1987-09-09

Family

ID=8189431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111993A Expired EP0112405B1 (fr) 1982-12-24 1982-12-24 Elément d'attache utilisable dans des machines à meuler et à polir

Country Status (3)

Country Link
EP (1) EP0112405B1 (fr)
AT (1) ATE29416T1 (fr)
DE (1) DE3277176D1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633861B1 (fr) * 1988-07-08 1994-10-21 Premines Sa Cale de poncage
IT1229703B (it) * 1989-05-11 1991-09-07 Franco Romanini Utensile per levigatura o simili.
DE9007699U1 (de) * 1989-08-23 1994-06-16 Robert Bosch Gmbh, 70469 Stuttgart Handwerkzeugmaschine
DE4020461C1 (en) * 1990-06-27 1991-07-18 Gerd Eisenblaetter Gmbh, 8192 Geretsried, De Face grinding disc tool - has replaceable grinding disc with backing disc having plastics rods
JP3362854B2 (ja) * 1994-01-13 2003-01-07 ミネソタ マイニング アンド マニュファクチャリング カンパニー 研摩材、研摩材の製造方法、および研摩装置
TW317223U (en) 1994-01-13 1997-10-01 Minnesota Mining & Mfg Abrasive article
US7311591B2 (en) 1994-10-11 2007-12-25 3M Innovative Properties Company Abrasive materials
US5807161A (en) * 1996-03-15 1998-09-15 Minnesota Mining And Manufacturing Company Reversible back-up pad
AU1986697A (en) * 1996-11-06 1998-05-29 Minnesota Mining And Manufacturing Company Multiple abrasive assembly and method
JP2001526593A (ja) 1996-11-06 2001-12-18 ミネソタ マイニング アンド マニュファクチャリング カンパニー 複合研磨組立体および方法
US6394887B1 (en) * 1999-04-19 2002-05-28 Stillman Eugene Edinger Apparatus for use with automated abrading equipment
GB2376651B (en) * 2000-03-14 2003-05-14 Bosch Gmbh Robert Hand-held electric sanding machine,in particular eccentric sander
DE20023967U1 (de) 2000-03-14 2008-02-28 Robert Bosch Gmbh Elektrohandschleifmaschine, insbesondere Exzenterschleifer
DE10312737B4 (de) * 2002-11-16 2004-09-09 Johann Rittgasser Reinigungskissen für Ein- oder Mehrscheiben-Reinigungsmaschinen
US8002612B2 (en) * 2004-04-08 2011-08-23 3M Innovative Properties Company Attachment system for a sanding tool
US20070010828A1 (en) * 2005-06-23 2007-01-11 Michael Eknoian Material for mechanical skin resurfacing techniques
US20090191376A1 (en) * 2008-01-30 2009-07-30 3M Innovative Properties Company Method, apparatus, and system using adapter assembly for modifying surfaces
US20130065490A1 (en) * 2011-09-12 2013-03-14 3M Innovative Properties Company Method of refurbishing vinyl composition tile
US20230079249A1 (en) * 2021-09-15 2023-03-16 Kenneth Luna Support assembly for surface treatment pad

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2234109A (en) * 1940-08-22 1941-03-04 Culpepper James Luther Abrading device
US3307300A (en) * 1964-10-01 1967-03-07 Field Albert Abrasive disk unit
DE1577588A1 (de) * 1966-09-23 1970-01-02 Joachim Jung Reissverbindung zum schnellen Auswechseln von Werkzeugblaettern od.dgl.
US3703739A (en) * 1971-03-02 1972-11-28 Beatrice Foods Co Multiple layer surface working pads

Also Published As

Publication number Publication date
DE3277176D1 (en) 1987-10-15
EP0112405A1 (fr) 1984-07-04
ATE29416T1 (de) 1987-09-15

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