EP2804719B1 - Tampon de polissage - Google Patents

Tampon de polissage Download PDF

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Publication number
EP2804719B1
EP2804719B1 EP13704723.9A EP13704723A EP2804719B1 EP 2804719 B1 EP2804719 B1 EP 2804719B1 EP 13704723 A EP13704723 A EP 13704723A EP 2804719 B1 EP2804719 B1 EP 2804719B1
Authority
EP
European Patent Office
Prior art keywords
pad
tear
block
block according
holes
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.)
Active
Application number
EP13704723.9A
Other languages
German (de)
English (en)
Other versions
EP2804719A1 (fr
Inventor
Daniele 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 EP2804719A1 publication Critical patent/EP2804719A1/fr
Application granted granted Critical
Publication of EP2804719B1 publication Critical patent/EP2804719B1/fr
Active 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
    • 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
    • B24D9/10—Circular back-plates for carrying flexible material with suction means for securing the material

Definitions

  • the present invention relates to the field of the tools for sanding surfaces in particular to the holders used with the said tools.
  • tools comprising an abrasive part are used See e.g. WO 2009/088772 A2 , on which the preamble of claim 1 is based.
  • Said abrasive part consists of a sheet of material (normally flexible) having a surface comprising abrasive material and is removably applied to a rigid body of any shape or size (said block) in the case of manual sanding or, in the case of mechanical sanders, said mechanical abrasive part is applied to a support (said pad) consisting of a body (normally disc-shaped) at the centre of which, perpendicularly thereto and on the opposite surface to the surface onto which the abrasive surface is affixed, a shaft is affixed that is capable of engaging with the corresponding guides of a rotary motor thus ensuring stability of the pad during the rotation imparted by the motor.
  • the abrasive part adheres to the support (block or pad as applicable) by means of suitable engagement means arranged on the surface of the pad opposite to the one that leads the shaft.
  • the engagement of the pad and the abrasive part must be such as to allow perfect adhesion during sanding but also an easy removal when the abrasive surface is worn and it is therefore necessary to remove it; said engagement is achieved with gripping materials, such as tear-off materials (such as Velcro ⁇ or other similar Hook and Loop pressure engagement materials).
  • gripping materials such as tear-off materials (such as Velcro ⁇ or other similar Hook and Loop pressure engagement materials).
  • the surface of the pad (and possibly also of the block) has a series of through and non-through holes that are variously arranged in the body of the pad (normally perpendicular to its two opposing surfaces).
  • the abrasive part also has the same holes that must be arranged and aligned to the holes in the pad when it is applied to the pad.
  • the operator Prior to commencing work, the operator must therefore concern himself the correct positioning of the abrasive part on the pad, an operation that is at times complicated considering the high number of models on the market, which further vary on the basis of the materials to be processed, and on the number of existing holes, and that in any case restricts to the use of abrasive components that are complementary to the available pad that is used.
  • the invention according to claim 1 provides a pad, or block, for the sanding of surfaces comprising engagement means consisting of transpirant tear-off material.
  • tear-off materials having a knitted surface structure with a thickness between 1 and 2 mm, preferably 1 mm and a weight between 300 and 400 g/m2, preferably 340 g/m2, are used.
  • tear-off materials wherein the connecting elements are mushroom-shaped or hook-and-loop shaped like in traditional velcro.
  • One example of material according to the invention is the PRESSOGRIP - FUNGO ⁇ .
  • the tear-off material is applied to the surface of the pad (with or without holes) with a binding means that does not create any type of film or obstruction to the passage of air.
  • the application can therefore be performed, for example, using polyurethane, neoprene and acrylic binders or by means of ultrasonic welding or other similar methods.
  • the pad 10 therefore presents the body 1, possibly equipped with holes 2, whose engagement surface with the abrasive part is completely covered by a transpirant 3 tear-off engagement means.
  • the surface of the pad or block onto which the transpirant engagement means as above described is applied has a series of channels produced along all or part of the surface; said channels 4 can of course be produced with any design or form (concentric circles, concentric centres connected by rays, spiral, regular or irregular geometric figures, etc.) and, if preferred, even the traditional holes 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Claims (6)

  1. Tampon ou bloc (1) pour polir des surfaces, dans lequel ledit tampon ou bloc a, sur la surface respective à laquelle est appliquée la surface abrasive, des moyens de mise en prise constitués d'un matériau détachable transpirant (3) qui recouvre toutes lesdites surfaces, caractérisé en ce que la surface du tampon ou bloc à laquelle le matériau détachable est appliqué a une série de canaux (4) réalisés sur tout ou partie de la surface de celui-ci et en ce que lesdits canaux (4) sont réalisés avec un dessin ou une forme quelconque et ont des trous traversants (2).
  2. Tampon ou bloc selon la revendication 1, dans lequel ledit matériau détachable a une structure de surface tricotée avec une épaisseur entre 1 et 2 mm, de préférence 1,5 mm et un poids entre 300 et 400 g/m2, de préférence 340 g/m2.
  3. Tampon ou bloc selon la revendication 2, dans lequel ledit matériau détachable comprend des éléments de connexion en forme de champignon.
  4. Tampon ou bloc selon la revendication 2, dans lequel ledit matériau détachable comprend des éléments de connexion auto-agrippants.
  5. Tampon ou bloc selon l'une des revendications 1-4, dans lequel ledit matériau détachable transpirant est appliqué à la surface du tampon avec des moyens de liaison qui ne créent aucun type de film ou d'obstruction au passage de l'air.
  6. Tampon ou bloc selon la revendication 5, dans lequel ledit matériau détachable est appliqué au tampon ou bloc avec des liants acryliques, polyuréthanes ou néoprènes appliqués par pulvérisation ou au pinceau, ou au moyen de soudage à ultrasons ou d'autres méthodes qui n'envisagent pas l'utilisation de liants.
EP13704723.9A 2012-01-20 2013-01-18 Tampon de polissage Active EP2804719B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000012A ITFI20120012A1 (it) 2012-01-20 2012-01-20 Platorello per carteggiatura
PCT/EP2013/050884 WO2013107837A1 (fr) 2012-01-20 2013-01-18 Patin de ponçage

Publications (2)

Publication Number Publication Date
EP2804719A1 EP2804719A1 (fr) 2014-11-26
EP2804719B1 true EP2804719B1 (fr) 2021-03-10

Family

ID=45992758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13704723.9A Active EP2804719B1 (fr) 2012-01-20 2013-01-18 Tampon de polissage

Country Status (4)

Country Link
EP (1) EP2804719B1 (fr)
ES (1) ES2873106T3 (fr)
IT (1) ITFI20120012A1 (fr)
WO (1) WO2013107837A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009088772A2 (fr) * 2007-12-31 2009-07-16 Saint-Gobain Abrasives, Inc. Tampon d'interface destiné à être utilisé entre un article abrasif et un outil de support

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2820666B1 (fr) * 2001-02-14 2003-04-11 Arjo Wiggins Sa Support autoagrippant pour un produit abrasif applique et procede de fabrication dudit produit abrasif l'incorporant
DE202006002844U1 (de) * 2006-02-23 2006-04-27 Hartmann, Peter Zwischenteller (Adapter) für die Aufnahme eines Schleifmittels für die Verwendung mit einer Schleifmaschine oder einem Handgerät
DE102010003616A1 (de) * 2010-04-01 2011-10-06 Robert Bosch Gmbh Haltekörper für flexibles Schleifmittel und Schleifsystem

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009088772A2 (fr) * 2007-12-31 2009-07-16 Saint-Gobain Abrasives, Inc. Tampon d'interface destiné à être utilisé entre un article abrasif et un outil de support

Also Published As

Publication number Publication date
ES2873106T3 (es) 2021-11-03
WO2013107837A1 (fr) 2013-07-25
EP2804719A1 (fr) 2014-11-26
ITFI20120012A1 (it) 2013-07-21

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