EP0465770B1 - Fächerstirnschleifwerkzeug - Google Patents

Fächerstirnschleifwerkzeug Download PDF

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Publication number
EP0465770B1
EP0465770B1 EP91105665A EP91105665A EP0465770B1 EP 0465770 B1 EP0465770 B1 EP 0465770B1 EP 91105665 A EP91105665 A EP 91105665A EP 91105665 A EP91105665 A EP 91105665A EP 0465770 B1 EP0465770 B1 EP 0465770B1
Authority
EP
European Patent Office
Prior art keywords
grinding
carrier
support plate
tool according
grinding tool
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
EP91105665A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0465770A1 (de
Inventor
Gerd Eisenblätter
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.)
Gerd Eisenblaetter GmbH
Original Assignee
Gerd Eisenblaetter GmbH
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 Gerd Eisenblaetter GmbH filed Critical Gerd Eisenblaetter GmbH
Publication of EP0465770A1 publication Critical patent/EP0465770A1/de
Application granted granted Critical
Publication of EP0465770B1 publication Critical patent/EP0465770B1/de
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
    • 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
    • B24D9/085—Devices for mounting sheets on a backing plate

Definitions

  • the invention relates to a flap face grinding tool with a support plate, which is provided with a fastening means for mounting on a drive machine, and with a grinding wheel, which has a circular disk-shaped carrier, releasably attachable to the support plate, and radially aligned, fan-overlapping grinding flaps fastened thereon.
  • the invention also relates to a grinding disk carrier for such a flap tool.
  • Such a tool is known from US-A-3,616,581.
  • the support plate has a raised ring, which is provided with a rubber covering.
  • the carrier is provided with radial slots, into each of which a grinding flap is inserted in such a way that an edge protrudes on the rear side facing away from the grinding side.
  • the carrier is screwed onto the support plate with a central screw, the protruding edges between the carrier and the ring area being firmly clamped in order to anchor the grinding flaps.
  • the grinding lamellas are fitted on site by unscrewing the carrier, inserting the grinding lamella and then screwing the carrier back onto the support plate. The changeover times are therefore relatively long and require great care.
  • the invention is based on the object of specifying a flap face grinding tool and a grinding disk carrier of the type mentioned at the outset, in which the changeover times are shortened.
  • the invention has the advantage that the plate can be punched out in a simple manner and with little tool wear.
  • the adhesive also forms a good bond with the fabric so that the sanding flaps are securely anchored. Furthermore, the surface fastener can be released even more easily due to the flexibility of the carrier.
  • the connecting means consists of a layer of a releasable adhesive applied on the carrier side.
  • this self-adhesive layer can be covered, for example, with a removable protective film.
  • the connecting means between the carrier and the support plate is a surface fastener (Velcro fastener).
  • a surface fastener which is also referred to as a Velcro fastener or Velcro fastener, is understood to mean two surfaces belonging to a particular type of zip fastener with different surface effects.
  • one surface is provided with loose chain thread loops made of multifilament synthetics.
  • the other surface has, for example, a large number of small hooks or spherical or mushroom heads on its upper side, which are formed from monofilament Velcro threads or the like. This creates a Velcro-like adhesive effect when the two tapes are placed on top of each other.
  • the invention also has the advantage that the carrier can be removed from the support plate in a simple manner with a movement perpendicular to the plate surface. Nevertheless, the plate is held securely in the grinding mode, since the effect of the shear forces that occur is smaller than the surface adhesion.
  • the carrier In principle, it is possible to manufacture the carrier from a fabric made of plastic threads. For reasons of environmental protection, however, it is particularly advantageous that the fabric consists of a natural fiber fabric. This has the further advantage that it can be treated with an impregnating agent which improves the adhesive effect and connection with the adhesive which fixes the abrasive flaps.
  • the carrier can also be advantageous for the carrier to consist of several layers, so that the anchoring effect, the flexibility and the fabric openings are optimized in particular with regard to the grain size of the grinding flaps.
  • the possible applications of the flap grinding tool are particularly large in that the outer diameter of the carrier and the grinding flap ring is larger than that Outside diameter of the support plate. In this way, a protrusion is created that also allows grinding in corners and slots.
  • This development is particularly economical, since after the outer area of the grinding flaps has been worked off and a corresponding reduction in the outer diameter, a smaller support plate can be used, so that the grinding wheel can be worked almost completely from the outside to the inside.
  • a harder or softer grinding can be carried out. In other words, this means that with a set of support plates of different diameters, different grinding tasks can be solved and the grinding fabric can be optimally used.
  • a particularly simple centering of the grinding wheel or the carrier on the support plate is achieved in that the support plate and the grinding wheel are each provided with a matching perforation. If you align both perforations one above the other, for example with the help of a separate pin, the backing plate and grinding wheel are concentric.
  • the support plate is provided with a central, grinding wheel-side screw bolt or with a threaded bore and a corresponding recess for receiving the relevant counterpart. Since the Surface fastener holds the grinding wheel and the screw connection essentially serves only as a safeguard against unintentional detachment in the idle state, it can be made correspondingly light.
  • a particularly inexpensive manufacture of the grinding wheel is achieved in that the surface belonging to the surface fastener consists of the loose chain thread loops or a pile fabric and that the support plate-side part of the surface fastener consists of the tentacle adhesives.
  • this development has the advantage that the plastic portion of the grinding wheel is further reduced.
  • a substantially rigid support plate 10 is provided with a central mandrel 11, with which this can be used in a screw chuck of a drive machine (not shown).
  • the support plate 10 is provided over a large area with mushroom-like, elastic plastic tentacles 12 which form a surface of a surface fastener (Velcro fastener 9).
  • the counter surface of the surface fastener 9 is located on a circular disk-shaped carrier 13 of a separate grinding wheel 14. This surface is formed by a pile 15 of loose warp thread loops.
  • the grinding flaps 16 each consist of a fabric with a surface coated with abrasive grain. They are glued to the carrier 13 at their end faces.
  • the carrier 13 is a woven fabric made of natural fibers, which is treated with an impregnating agent for a good connection with the adhesive.
  • the grinding wheel 14 is flexible in itself, although in principle a rigid support 13 is also possible.
  • the outer diameter of the carrier 13 has a predetermined protrusion a compared to the outer diameter of the support plate 10, so that the flap grinding tool can not only be used for large-area grinding operation, but also corners and the like can be machined due to the protrusion.
  • the support plate 10 there is a recess 17 in the center with a central threaded bolt 18 which is flush with the surface of the support plate 10.
  • the threaded bolt 18 cooperates with a central perforation 19 in the carrier 13, so that a concentric arrangement of the support plate 10 and grinding wheel 14 is ensured.
  • the carrier 13 or the grinding wheel 14 are fastened to the support plate 10 by first opening the holes 19 the threaded bolt 18 inserted and then the surfaces of the surface fastener 9 are pressed together.
  • the tentacles 12 then adhere so firmly in the pile 15 that a safe grinding operation is possible.
  • a locking nut 20 can be screwed onto the threaded bolt 18, the adjacent regions 21 (FIG. 2) of the carrier 13 being clamped in the recess 17. As a rule, such a backup should not be necessary.
  • the surface fastener 9 is released in a simple manner in that the carrier 13 is pulled off in the axial direction.
  • the carrier 13 is provided with radial slots 22 in the area of the perforation 19, so that the area 21 of the recess 17 of the support plate 10 can adapt when securing with the lock nut 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
EP91105665A 1990-06-27 1991-04-10 Fächerstirnschleifwerkzeug Expired - Lifetime EP0465770B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4020461A DE4020461C1 (en) 1990-06-27 1990-06-27 Face grinding disc tool - has replaceable grinding disc with backing disc having plastics rods
DE4020461 1990-06-27

Publications (2)

Publication Number Publication Date
EP0465770A1 EP0465770A1 (de) 1992-01-15
EP0465770B1 true EP0465770B1 (de) 1992-12-30

Family

ID=6409188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105665A Expired - Lifetime EP0465770B1 (de) 1990-06-27 1991-04-10 Fächerstirnschleifwerkzeug

Country Status (9)

Country Link
US (1) US5201149A (da)
EP (1) EP0465770B1 (da)
JP (1) JP2501255B2 (da)
AT (1) ATE83963T1 (da)
AU (1) AU651978B2 (da)
CA (1) CA2045381C (da)
DE (3) DE4020461C1 (da)
DK (1) DK0465770T3 (da)
ES (1) ES2038057T3 (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10104963C1 (de) * 2001-02-03 2002-01-31 Eisenblaetter Gerd Gmbh Schleifwerkzeug

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US5297366A (en) * 1993-03-26 1994-03-29 Huddleston Michael D Self affixing sanding and buffing pads/system and apparatus
TW317223U (en) * 1994-01-13 1997-10-01 Minnesota Mining & Mfg Abrasive article
DE69509219T2 (de) * 1994-01-13 1999-09-23 Minnesota Mining And Mfg. Co., Saint Paul Schleifartikel, verfahren zur herstellung desselben, und schleifmaschine
US5785784A (en) 1994-01-13 1998-07-28 Minnesota Mining And Manufacturing Company Abrasive articles method of making same and abrading apparatus
US5607345A (en) * 1994-01-13 1997-03-04 Minnesota Mining And Manufacturing Company Abrading apparatus
US5505747A (en) * 1994-01-13 1996-04-09 Minnesota Mining And Manufacturing Company Method of making an abrasive article
USD376744S (en) 1994-08-03 1996-12-24 Gerd Eisenblatter Gmbh Support plate
US5815876A (en) * 1995-09-01 1998-10-06 Overseth; Elmo R. Apparatus for cleaning and polishing a surface
US5692949A (en) * 1995-11-17 1997-12-02 Minnesota Mining And Manufacturing Company Back-up pad for use with abrasive articles
WO1997027974A1 (en) * 1996-02-01 1997-08-07 Yanase Kabushiki Kaisha Rotary polishing device
WO1998019830A1 (en) 1996-11-06 1998-05-14 Minnesota Mining And Manufacturing Company Multiple abrasive assembly and method
AU1986697A (en) 1996-11-06 1998-05-29 Minnesota Mining And Manufacturing Company Multiple abrasive assembly and method
US5964006A (en) * 1997-01-13 1999-10-12 3M Innovative Properties Company Rotary surface treatment tool
US5947807A (en) * 1997-02-28 1999-09-07 Overseth; Elmo R. Apparatus for cleaning and polishing a surface
USD399620S (en) 1997-03-28 1998-10-13 Minnesota Mining And Manufacturing Company Surface treating article retainer
USD394530S (en) 1997-03-28 1998-05-19 Minnesota Mining And Manufacturing Company Surface treating article retainer system
DE19853550C1 (de) * 1998-11-20 2000-03-09 Ver Schmirgel & Maschf Fächerschleifscheibe
DE29910931U1 (de) * 1999-06-22 1999-08-26 Gerd Eisenblätter GmbH, 82538 Geretsried Werkzeugträger
JP2001277139A (ja) * 2000-04-03 2001-10-09 Masafumi Suzuki 研磨シートとその研磨シートを備えた研磨シート用バックパッド及びサンダー
DE20012746U1 (de) 2000-07-22 2000-09-28 Braasch Gerd Schleifwerkzeug
US6863596B2 (en) * 2001-05-25 2005-03-08 3M Innovative Properties Company Abrasive article
US6743085B2 (en) 2001-11-20 2004-06-01 3M Innovative Properties Company Rotating back up abrasive disc assembly
US6726555B2 (en) * 2001-12-27 2004-04-27 Gerd Eisenblaetter Gmbh Tool carrier
DE10357144A1 (de) * 2003-12-06 2005-06-30 Robert Bosch Gmbh Schleifteller für eine Handschleifmaschine
US7892074B2 (en) * 2008-01-30 2011-02-22 3M Innovative Properties Company Surface modifying tool adapter using a plurality of surface modifying article inserts for use in a surface modifying system
US8469775B2 (en) * 2008-07-10 2013-06-25 3M Innovative Properties Company Conversion assemblage adaptable for use in combination with a surface modifying apparatus and method thereof
US20100009607A1 (en) * 2008-07-10 2010-01-14 3M Innovative Properties Company Conversion assemblage adaptable for use in combination with a surface modifying apparatus and method thereof
US20100009606A1 (en) * 2008-07-10 2010-01-14 3M Innovative Properties Company Conversion assemblage adaptable for use in combination with a surface modifying apparatus and method thereof
US8430725B2 (en) 2008-12-19 2013-04-30 Jovan Pajovic Abrasive disc construction
DE102009054696A1 (de) * 2009-12-15 2011-06-16 August Rüggeberg Gmbh & Co. Kg Fächer-Schleifscheibe für den Einsatz an stationären Schleifmaschinen
ES2361346A1 (es) * 2011-02-21 2011-06-16 Salinas E Hijos S.L. Disco de láminas para pulir vidrio.
US20140325781A1 (en) * 2013-05-03 2014-11-06 LAMB'S Innovative Solutions, Inc. Detailing and polishing pad
US9049976B2 (en) * 2013-06-14 2015-06-09 Robin O Blocker Rotary sponge having an adjustable elongated handle
TWI583730B (zh) 2014-05-29 2017-05-21 聖高拜磨料有限公司 具有包含聚合物材料之核的磨料製品
US11957635B2 (en) 2015-06-20 2024-04-16 Therabody, Inc. Percussive therapy device with variable amplitude
DE202015106711U1 (de) 2015-12-09 2017-03-10 Kolthoff Gabrovo Eood Werkzeug für Oberflächenfeinbearbeitungen
US10040170B2 (en) 2016-03-02 2018-08-07 Perry D. Bechthold Rotary sanding system
CN110505831B (zh) * 2017-02-22 2021-07-09 Acs工业股份有限公司 旋转分段式地板起蜡垫
USD951470S1 (en) * 2018-03-27 2022-05-10 Therabody, Inc. Vibration massage device
US12064387B2 (en) 2018-12-26 2024-08-20 Therabody, Inc. Percussive therapy device with electrically connected attachment
US10940081B2 (en) 2019-05-07 2021-03-09 Theragun, Inc. Percussive massage device with force meter
US11890253B2 (en) 2018-12-26 2024-02-06 Therabody, Inc. Percussive therapy device with interchangeable modules
FI20195131A1 (en) * 2019-02-20 2020-08-21 Mirka Ltd Device for changing abrasive products
US10611000B1 (en) * 2019-04-16 2020-04-07 Thomas E. Foster Flexible sanding block using hook and loop fastener
US11813221B2 (en) 2019-05-07 2023-11-14 Therabody, Inc. Portable percussive massage device
US11998504B2 (en) 2019-05-07 2024-06-04 Therabody, Inc. Chair including percussive massage therapy
IT202000021739A1 (it) * 2020-09-15 2022-03-15 Pola & Massa S R L Spazzola rotante migliorata, facilmente sostituibile, in particolare per la pulitura di piastre per circuiti stampati
US11857481B2 (en) 2022-02-28 2024-01-02 Therabody, Inc. System for electrical connection of massage attachment to percussive therapy device
US12295900B1 (en) 2022-12-21 2025-05-13 Therabody, Inc. Systems, methods, and devices for percussive massage therapy with voice activation
US12402686B2 (en) 2023-06-14 2025-09-02 Therabody, Inc. Articles of footwear having therapeutic assemblies
WO2025059992A1 (en) 2023-09-21 2025-03-27 Therabody, Inc. Systems, methods, and devices for percussive massage therapy

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10104963C1 (de) * 2001-02-03 2002-01-31 Eisenblaetter Gerd Gmbh Schleifwerkzeug

Also Published As

Publication number Publication date
AU651978B2 (en) 1994-08-11
JP2501255B2 (ja) 1996-05-29
JPH04226865A (ja) 1992-08-17
CA2045381A1 (en) 1991-12-28
AU7917791A (en) 1992-01-02
ES2038057T3 (es) 1993-07-01
DE9105607U1 (de) 1991-11-14
DK0465770T3 (da) 1993-04-05
ATE83963T1 (de) 1993-01-15
CA2045381C (en) 1995-08-15
DE59100024D1 (de) 1993-02-11
DE4020461C1 (en) 1991-07-18
EP0465770A1 (de) 1992-01-15
US5201149A (en) 1993-04-13

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