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WO2009013280A1 - Élément de meulage destiné à traiter des surfaces - Google Patents

Élément de meulage destiné à traiter des surfaces Download PDF

Info

Publication number
WO2009013280A1
WO2009013280A1 PCT/EP2008/059557 EP2008059557W WO2009013280A1 WO 2009013280 A1 WO2009013280 A1 WO 2009013280A1 EP 2008059557 W EP2008059557 W EP 2008059557W WO 2009013280 A1 WO2009013280 A1 WO 2009013280A1
Authority
WO
WIPO (PCT)
Prior art keywords
abrasive
carrier web
cut
layer
cuts
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.)
Ceased
Application number
PCT/EP2008/059557
Other languages
German (de)
English (en)
Inventor
René BRUNNER
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.)
Sia Abrasives Industries AG
Original Assignee
Sia Abrasives Industries AG
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 Sia Abrasives Industries AG filed Critical Sia Abrasives Industries AG
Priority to EP08786293.4A priority Critical patent/EP2170558B1/fr
Publication of WO2009013280A1 publication Critical patent/WO2009013280A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/008—Finishing manufactured abrasive sheets, e.g. cutting, deforming

Definitions

  • the invention relates to an abrasive for treating surfaces having the features of the preamble of the independent claim.
  • Such abrasives are often stored in roll form or stacked as sheets. If required, individual mucous membrane leaves can be separated from the roll or from an abrasive sheet.
  • EP 1005957 Bl describes a longitudinal web of nonwoven abrasive material having a plurality of longitudinally spaced and perforations mounted transversely of the web. A user can thus easily separate individual abrasive sheets from the web along the perforations.
  • abrasive of the type mentioned, which in particular can be produced in a simple manner and the production requires as few steps.
  • the abrasive should be constructed so that in particular manually as simple as possible individual abrasive sheets can be separated. moreover the quality of the abrasive sheets or the abrasive should be influenced as little as possible by the separation.
  • the abrasive comprises a carrier web and an abrasive layer bonded to the carrier web.
  • the abrasive comprises at least one line weakened region of a cut disposed on a surface of the abrasive layer. Along the weakened areas, individual abrasive sheets can be separated from the abrasive.
  • the cut at the outer or the inner i. Carrier web side surface or be arranged on both surfaces.
  • Particularly advantageous is the arrangement of the cut on the outer surface, i. the work surface because this results in a smooth edge along the processing surface of the severed abrasive sheet.
  • the production is easy, because the cut can be mounted only after the joining of carrier web and Schleif harsh.
  • the cut extends continuously from a first free edge of the grinding layer to a second free edge of the grinding layer.
  • the free edges are formed for example by two side edges of the grinding layer or they form, for example, the edges of a recess in the grinding layer.
  • the cut may also form a closed shape such as a circle or a rectangle.
  • the closed mold thus limits an abrasive sheet which can be removed or removed from an abrasive sheet.
  • any shapes of a sanding sheet can be realized.
  • the carrier web comprises a band and the cut is arranged transversely to the longitudinal direction of the band.
  • the band has a plurality of longitudinally spaced apart transversely extending cuts.
  • the tape can be wound, for example, on a roll, from which each individual sanding sheets are separable. It is also conceivable that the roller belongs to a dispensing device for abrasive sheets, in which the desired number of abrasive sheets is wound from the roll and these are separated along the cuts.
  • the distance between two adjacent sections is preferably about 14 cm and the band is preferably about 11 cm wide. Such dimensions are particularly suitable for hand sanding applications due to their handling.
  • the cuts can also be arranged crosswise on an abrasive sheet.
  • the cuts thus form a grid which defines circumferential closed edges for the individual sanding sheets.
  • the grid may be a rectangular grid, but any angles between the cuts are conceivable.
  • the cuts may be straight or curved, according to the desired shape of the abrasive sheets.
  • the cut passes continuously through the abrasive layer.
  • tear-resistant abrasive layers can be used, which can not be separated manually.
  • the individual abrasive sheets are joined together by the carrier web. quantitative hold.
  • the cut extends into the carrier web and thus forms a departure notch.
  • the carrier web is preferably a foam which can be separated along the cut, in particular a PU foam.
  • a foam has the advantage that it is light and elastic and therefore distributes the grinding pressure during grinding and compensates for pressure peaks. At the same time, the foam is easy to tear.
  • the carrier web is preferably 1 to 10 mm thick. Particularly suitable are thicknesses of 4 to 6 mm.
  • the abrasive and especially the carrier web is preferably constructed such that the tensile strength in the weakened region is 10-35 N / 50 mm, particularly preferably 16-27 N / 50 mm (tensile force measurement / force-elongation measurement).
  • individual abrasive sheets can be manually, i. without tools such as scissors or knives, be separated from the abrasive.
  • the abrasive is preferably held in roll form in a box. It is particularly advantageous if the rollers are wound with the grinding layer inwards. This prevents the abrasion of the abrasive at the bottom of the box. The recognizability of the grain is thereby improved. While such storage is particularly advantageous for the abrasive described above, this arrangement also provides advantages for other roll-form abrasives.
  • a carrier web is provided with an abrasive layer. Before or after bonding, at least one cut is made on a surface of the abrasive layer which either extends from a first free edge of the abrasive layer to a second free edge of the abrasive layer or forms a closed mold.
  • the surface may be that side of the abrasive layer which is bonded to the carrier web. It is also possible to make a cut on both surfaces. However, the cut is preferably applied to the outer surface, that is to say the working surface. Preferably, the cut is made continuously through the entire abrasive layer so that the abrasive discs separated by the cuts are held together only by the carrier web.
  • the cut is carried out by passing the abrasive between two rolls, one roller of which is provided with one or more cutting blades arranged parallel to the axis of the rolls.
  • This method allows efficient production, especially in the case of endless abrasive webs.
  • the invention is not limited to cutting with a blade: there are many different ways of producing a cut conceivable, such as cutting, etching, punching, etc.
  • Figure 1 Perspective representation of a part of a
  • FIG. 2 shows a schematic side view of the first embodiment of an abrasive
  • FIG. 3 a schematic side view of a second embodiment of an abrasive
  • FIG. 4 shows a schematic side view of a third embodiment of an abrasive
  • FIG. 5 a perspective view of a fourth embodiment of an abrasive
  • Figure 6 Perspective view of a fifth embodiment of an abrasive.
  • FIG. 1 shows a strip-shaped abrasive material 1 wound into a roll. It comprises a carrier web 2 made of foam, for example a PUR-ester foam B25H from Otto Bock Schaumfstoffwerke GmbH with a thickness of 6 mm, to which an abrasive layer 3 is glued.
  • the abrasive layer 3 here comprises an abrasive paper with a paper layer 8 and abrasive particles 12 fixed thereon by means of a binder 11.
  • the abrasive layer 3 is provided with transverse cuts 5 at regular intervals. The cuts 5 each extend over the entire width and the cuts 5 extend continuously from the outer surface 9, the working surface, to a surface of the carrier web 2.
  • the cuts 5 divide the abrasive 1 into seamlessly joined abrasive sheets 7, which are connected by the carrier web 2.
  • the sanding sheets 7 have a size of 11.5 x 14.5 cm.
  • the cuts 5, as shown in FIGS. 2 and 3 may also be arranged such that they do not completely separate the abrasive layer 3.
  • the section 5 extends from the outer surface 9 only into the paper layer 8.
  • two sections 5 are arranged, in each case on the outer surface 9 and on the inner surface 10, which is glued to the carrier web 2.
  • FIG. 4 Another possible arrangement of the cut 5 is shown in FIG. 4: the cut 5 extends from the outer surface 9 into the carrier web 2. This arrangement facilitates the separation of the abrasive sheets 7, by also the cross-section of the carrier web 2 is weakened by the cut 5. In all embodiments, the individual abrasive sheets are held together by the carrier web. The carrier web is easy to travel.
  • the carrier web 2 can also have the shape of an arc shown in FIG. 5, which is composed of a plurality of abrasive sheets 7.
  • the cuts 5 here form a grid of sections 5 arranged at right angles to one another.
  • the cuts 5 each extend from a free edge 6 to an opposite free edge 6 and delimit the sanding sheets 7.
  • FIG. 6 Another arrangement of the cuts 5 on a sheet is shown in FIG. 6: the cuts 5 each form a circular closed shape and define round grinding sheets 7.

Landscapes

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

Abstract

L'invention concerne un élément de meulage (1) destiné au traitement de surfaces, comportant une bande support (2) et une couche de meulage (3) connectée à la bande support (2). L'élément de meulage (1) présente au moins une zone amincie (4) en forme de ligne, comportant une entaille (5) pratiquée sur une surface (9; 10) de la couche de meulage (3). L'entaille s'étend d'un premier bord libre (6) de la couche de meulage (3) vers un deuxième bord libre (6) de la couche de meulage (3) ou constitue une forme fermée.
PCT/EP2008/059557 2007-07-25 2008-07-22 Élément de meulage destiné à traiter des surfaces Ceased WO2009013280A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08786293.4A EP2170558B1 (fr) 2007-07-25 2008-07-22 Élément de meulage destiné à traiter des surfaces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007010346.8 2007-07-25
DE200720010346 DE202007010346U1 (de) 2007-07-25 2007-07-25 Schleifmittel zum Behandeln von Oberflächen

Publications (1)

Publication Number Publication Date
WO2009013280A1 true WO2009013280A1 (fr) 2009-01-29

Family

ID=38542882

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/059557 Ceased WO2009013280A1 (fr) 2007-07-25 2008-07-22 Élément de meulage destiné à traiter des surfaces

Country Status (3)

Country Link
EP (1) EP2170558B1 (fr)
DE (1) DE202007010346U1 (fr)
WO (1) WO2009013280A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8506364B2 (en) 2009-08-28 2013-08-13 3M Innovative Properties Company Abrasive article having a line of weakness
FR2995239A1 (fr) * 2012-09-07 2014-03-14 Bosch Gmbh Robert Feuille abrasive
CN111361135A (zh) * 2020-04-20 2020-07-03 惠州市集广新材料科技有限公司 载带加工装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2239097A1 (fr) * 2009-04-07 2010-10-13 Hendrikus Gerardus Maria Huismann Papier de verre
ITCR20100010U1 (it) 2010-10-12 2012-04-13 Paolo Corazzi Fibre Srl Nastro abrasivo porzionabile a strappo in singoli elementi
DE102018201716A1 (de) * 2018-02-05 2019-08-08 Robert Bosch Gmbh Schleifmitteleinheit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996038264A1 (fr) * 1995-05-30 1996-12-05 Minnesota Mining And Manufacturing Company Ensemble de feuilles abrasives et distributeur de telles feuilles
EP1005957A2 (fr) * 1995-08-30 2000-06-07 Minnesota Mining And Manufacturing Company Rouleau de matériau abrasif non tissé

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996038264A1 (fr) * 1995-05-30 1996-12-05 Minnesota Mining And Manufacturing Company Ensemble de feuilles abrasives et distributeur de telles feuilles
EP1005957A2 (fr) * 1995-08-30 2000-06-07 Minnesota Mining And Manufacturing Company Rouleau de matériau abrasif non tissé

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8506364B2 (en) 2009-08-28 2013-08-13 3M Innovative Properties Company Abrasive article having a line of weakness
FR2995239A1 (fr) * 2012-09-07 2014-03-14 Bosch Gmbh Robert Feuille abrasive
CN111361135A (zh) * 2020-04-20 2020-07-03 惠州市集广新材料科技有限公司 载带加工装置

Also Published As

Publication number Publication date
DE202007010346U1 (de) 2007-09-27
EP2170558A1 (fr) 2010-04-07
EP2170558B1 (fr) 2014-01-08

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