EP0904897A2 - Jeu de blocs de ponçage et blocs de ponçage pour traiter des surfaces de formes variées - Google Patents

Jeu de blocs de ponçage et blocs de ponçage pour traiter des surfaces de formes variées Download PDF

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Publication number
EP0904897A2
EP0904897A2 EP98103422A EP98103422A EP0904897A2 EP 0904897 A2 EP0904897 A2 EP 0904897A2 EP 98103422 A EP98103422 A EP 98103422A EP 98103422 A EP98103422 A EP 98103422A EP 0904897 A2 EP0904897 A2 EP 0904897A2
Authority
EP
European Patent Office
Prior art keywords
abrasive
coupling surface
coupling
block
sanding
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
EP98103422A
Other languages
German (de)
English (en)
Other versions
EP0904897B1 (fr
EP0904897A3 (fr
Inventor
Prospero Corcos
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.)
Corcos SRL
Original Assignee
Corcos SRL
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 Corcos SRL filed Critical Corcos SRL
Publication of EP0904897A2 publication Critical patent/EP0904897A2/fr
Publication of EP0904897A3 publication Critical patent/EP0904897A3/fr
Application granted granted Critical
Publication of EP0904897B1 publication Critical patent/EP0904897B1/fr
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
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping

Definitions

  • the present invention refers to a kit of sanding blocks and to sanding blocks suitable to treat variously shaped surfaces.
  • Abrasive paper sheets or disks are used to sand surfaces, and in particular to sand the body panels of cars. These disks, or paper sheets, have to be handled with the help of suitable sanding supports, hereinafter called “blocks”, to which they are coupled.
  • the blocks are mechanically resistant elements bearing the abrasive sheet or disks.
  • velcro An intermediate layer of a specific material, known as "velcro" (registered Trademark), is provided to join the abrasive sheet, or disk, to a block.
  • the velcro material consists of two sheets which can be coupled approaching the one to the other and then easily detached .
  • one sheet of the velcro, and specifically a sheet provided with plastic hooks is applied to the bottom surface of the block, while the other sheet, which is made of a sort material suitable to adhere to said hooks, is applied to the non-abrasive side of the abrasive disk.
  • the bottom surface of the already known sanding blocks which defines the active surface of the blocks during the sanding operation, has a flat shape. For this reason the conventional blocks are not suitable to treat curvilinear and/or variously shaped surfaces.
  • the shape of the bottom surface of these blocks can not be modified when the shape of the surface to be treated changes.
  • the present invention overcomes the above-mentioned drawbacks providing sanding blocks having a curvilinear active surface which can be variously shaped and which can be coupled with the non-abrasive side of an abrasive disk.
  • the invention refers also to a Kit comprising a main block which acts as an handle for the user and several fitting blocks having active surfaces of different shapes so that they are suitable to be used to treat curvilinear and/or variously shaped surfaces.
  • the fitting blocks have a first coupling surface corresponding to the bottom surface of the main block and a second coupling surface which can be variously shaped and which can be coupled with the non-abrasive side of an abrasive disk.
  • the main block 1 consists of a body which is preferably made of a synthetic resin and which presents an upper portion 3 anatomically shaped in order to act as an handle for the user during the sanding operation.
  • the hand grip is made easier by several grooves 4 which define an anatomically shaped housing for the parts of the user's hand which rest on the main block.
  • Main block 1 presents a bottom portion 5 having a shape and/or a coating which makes it suitable to be joined with both a fitting block and an abrasive disk using a "velcro" layer.
  • lateral surfaces 6 of the main block 1 are made in a similar manner to portion 5.
  • the main block can be used separately (without any fitting block applied thereto).
  • an abrasive disk is directly applied on the main block 1.
  • the abrasive disk matches the frontal and rear outline of surface 5 of the main block, while the portions of the disk exceeding the lateral outline of the bottom surface 5 can be applied on the semicircular lateral surfaces 6 of main block 1.
  • the present kit comprises several fitting blocks 2a-2e, the number and the shape of which can change.
  • Each fitting block is provided with a coupling surface 7 (the bottom surface in the drawings) which corresponds and can be coupled to the bottom surface 5 of the main block 1.
  • Each fitting block is also provided with an active surface 8 (in the drawings the upper surface) intended to be joined with the non-abrasive side of an abrasive disk.
  • a fitting block can be joined with a main block simply approaching the coupling surfaces 7 and 5, so that the non-abrasive side of a disk can be applied on and adhere to the active surface 8 of the fitting block.
  • fitting blocks of the drawings present active surfaces 8 having various curvilinear shapes which make it possible to treat both convex and concave surfaces having various radii of curvature.
  • the fitting blocks 2a,2b of fig.1 present concave active surfaces 8 and lateral surfaces 9 which can be joined with the non-abrasive side of an abrasive disk.
  • the fitting block 2a, having a slightly concave active surface 8 is suitable to treat slightly convex surfaces
  • the fitting block 2b, having a remarkably convex active surface 8 is suitable to treat very concave surfaces.
  • fitting blocks 2c-2e can be used to treat variously shaped surfaces, depending on their radius of curvature.
  • the invention refers also to sanding blocks 1', having an upper portion 3' similar to the upper portion 3 of the already described main block 1 and curvilinear coupling surfaces 8' similar to the already described second coupling surfaces 8 of said fitting blocks 2a-2e.
  • the upper portion and the coupling surface do not present sharpe edges, and lateral coupling surfaces 6' of the main block are provided to be coupled with the lateral portions of the non-abrasive side of an abrasive disk which possibly exceed the lateral outline of the bottom surface 8' of the block 1'.
  • the coupling surfaces 5,6,8' of blocks 1,1' and the coupling surfaces 8 of the fitting blocks 2a -2e are suitable to be coupled with the abrasive disks already known in the market which have a diameter of 150 mm and which are provided with a coupling surface coated with a velcro sort sheet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Dental Preparations (AREA)
EP19980103422 1997-09-17 1998-02-27 Jeu de blocs de ponçage et blocs de ponçage pour traiter des surfaces de formes variées Expired - Lifetime EP0904897B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI970120 IT242770Y1 (it) 1997-09-17 1997-09-17 Kit per la carteggiatura di superfici di vario tipo
ITFI970120U 1997-09-17

Publications (3)

Publication Number Publication Date
EP0904897A2 true EP0904897A2 (fr) 1999-03-31
EP0904897A3 EP0904897A3 (fr) 2000-11-15
EP0904897B1 EP0904897B1 (fr) 2004-04-14

Family

ID=11352113

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980103422 Expired - Lifetime EP0904897B1 (fr) 1997-09-17 1998-02-27 Jeu de blocs de ponçage et blocs de ponçage pour traiter des surfaces de formes variées

Country Status (4)

Country Link
EP (1) EP0904897B1 (fr)
DE (1) DE69823127T2 (fr)
ES (1) ES2219798T3 (fr)
IT (1) IT242770Y1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20080203A1 (it) * 2008-10-23 2010-04-24 Corcos S R L Dispositivo per la carteggiatura di superfici
US8057286B2 (en) * 2005-10-31 2011-11-15 Style-Line Corporation International Sanding blocks for use with adhesive-backed sandpaper
GB2495353A (en) * 2011-10-03 2013-04-10 William Ronald Greenwood Simulated horse riding training apparatus
USD875501S1 (en) 2018-04-23 2020-02-18 Ted Randall Dedrick Sanding tool
IT202100012011A1 (it) 2021-05-11 2022-11-11 Domenico Porpora Tampone per lavorare a mano una superficie da lavorare, per esempio per carteggiare, sverniciare, smerigliare o lucidare una superficie di una carrozzeria.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1927574A (en) * 1928-07-09 1933-09-19 Frederick C Parks Sandpaper holder
US2413147A (en) * 1945-09-14 1946-12-24 Malcolm C Lawrence Hand sander
DE1090993B (de) * 1955-05-13 1960-10-13 Leslie Gordon Hudson Handschleif- oder -poliergeraet zum Bearbeiten von Oberflaechen
US2818690A (en) * 1956-08-20 1958-01-07 Louis R Pritikin Sanding device
GB2074062A (en) * 1980-04-11 1981-10-28 Trenchbond Ltd Hand operated abrader
FR2633861B1 (fr) * 1988-07-08 1994-10-21 Premines Sa Cale de poncage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8057286B2 (en) * 2005-10-31 2011-11-15 Style-Line Corporation International Sanding blocks for use with adhesive-backed sandpaper
ITFI20080203A1 (it) * 2008-10-23 2010-04-24 Corcos S R L Dispositivo per la carteggiatura di superfici
EP2179819A1 (fr) * 2008-10-23 2010-04-28 Corcos S.r.l. Dispositif pour poncer des surfaces
GB2495353A (en) * 2011-10-03 2013-04-10 William Ronald Greenwood Simulated horse riding training apparatus
USD875501S1 (en) 2018-04-23 2020-02-18 Ted Randall Dedrick Sanding tool
IT202100012011A1 (it) 2021-05-11 2022-11-11 Domenico Porpora Tampone per lavorare a mano una superficie da lavorare, per esempio per carteggiare, sverniciare, smerigliare o lucidare una superficie di una carrozzeria.

Also Published As

Publication number Publication date
EP0904897B1 (fr) 2004-04-14
DE69823127D1 (de) 2004-05-19
DE69823127T2 (de) 2005-04-28
IT242770Y1 (it) 2002-01-30
ES2219798T3 (es) 2004-12-01
ITFI970120U1 (it) 1999-03-17
EP0904897A3 (fr) 2000-11-15

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