EP2230046B1 - Tête de sablage adaptable sur une meuleuse angulaire - Google Patents

Tête de sablage adaptable sur une meuleuse angulaire Download PDF

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Publication number
EP2230046B1
EP2230046B1 EP20090382216 EP09382216A EP2230046B1 EP 2230046 B1 EP2230046 B1 EP 2230046B1 EP 20090382216 EP20090382216 EP 20090382216 EP 09382216 A EP09382216 A EP 09382216A EP 2230046 B1 EP2230046 B1 EP 2230046B1
Authority
EP
European Patent Office
Prior art keywords
sanding
plate
disk
rear face
machine
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
EP20090382216
Other languages
German (de)
English (en)
Other versions
EP2230046A1 (fr
Inventor
Isidoro Salinas Traura
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.)
Salinas e Hijos SL
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Salinas e Hijos SL
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Publication date
Application filed by Salinas e Hijos SL filed Critical Salinas e Hijos SL
Publication of EP2230046A1 publication Critical patent/EP2230046A1/fr
Application granted granted Critical
Publication of EP2230046B1 publication Critical patent/EP2230046B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
    • 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 present invention relates to a head for a grinding machine of the type of those comprising an electric motor driving a threaded shaft in which there is assembled either a radial disk which can be used to cut several materials (iron, stone, wood, etc.) and also as a coarse sanding disk, which is locked by means of an outer nut which is tightened with a special wrench. It is also possible to assemble in said drive shaft a head like a conical plate, made of rubber or plastic, which screws into said shaft of the machine at the smaller base and has in its larger base, located outwardly, a sanding disk to adapt the grinding machine as an angle sander.
  • the head of the invention specifically relates to a head which allows easily assembling and disassembling sanding or polishing disks in a conventional grinding machine.
  • This head has two well differentiated parts, on one hand a plate which on its rear face is provided with an end through which it screws into and is fixed to the shaft of the machine, whereas on its front face it is provided with a surface for contact mechanical attachment of a sanding disk, or formed by sanding sheets attached to one another, on the other hand, a replaceable sanding disk having on its rear face contact mechanical attachment means similar to those of the head and its active front face, or is formed by an abrasive sanding surface, or formed by several sanding disks attached to one another tangentially with respect to a radial plane of said disk, or by any other abrasive material.
  • both individual sanding disks and sanding plates have a planar operative surface, which poses problems when treating rounded surfaces since the disk wears in a nonuniform manner, in addition to causing vibrations in the shaft of the machine which make the task of the operator difficult and end up rendering the machine useless.
  • the object of the present invention is a sanding head adaptable to an orbital grinder, having a plate which on its rear face has a cylindrical end, generally provided with two planar cuts defining respective parallel faces forming a drive means by a conventional wrench applied on said planar faces. It internally incorporates a nut or defines a threaded cavity into which it screws and is fixed to the shaft of the grinding machine.
  • This plate has on its front face, opposite that through which it is fixed to the grinder, a considerably planar discoid surface forming the contact mechanical attachment means for a sanding disk or formed by several sanding sheets attached to one another according to inclined diametric planes.
  • the sanding disk has on its rear face, opposite the machine, contact mechanical attachment means similar to those existing in the head, forming between both an attachment system through Velcro-type hooks and loops.
  • the plate coupled in the shaft of the machine likewise has an axial protrusion directed towards the front face and reaches a sufficient height to be located inside a hole existing in the center of the sanding disk, in which it is adapted.
  • This protrusion allows centering and securing the disk with the aforementioned single Velcro-type means.
  • the sanding disk is a disk with a conventional configuration which is either formed by a sanding surface or by sanding sheets attached to one another according to inclined diametric planes, or by any other abrasive material.
  • This disk can be planar or can have on its active face, the one opposite the grinder, a certain tapering in which the larger base coincides with the front face opposite the machine.
  • the center of the sanding disk is recessed towards the rear face which is provided with the Velcro for attachment with the plate, like the latter; the coupling between the axial protrusion of the plate and the central hole of the sanding disk is thus performed in a plane located at the rear part, towards the machine, with respect to the work plane or active area of the sanding disk, so that it does not interfere with the surface of the abrasive and does not affect the coupling in any work circumstance.
  • Document US 6 059 644 discloses a sanding head adaptable to an orbital grander, having a plate provided with a threaded end which permits into which it screws to the machine, and on its front face, opposite to that through which it is fixed to the grinder, a discoid surface through which a sanding disc is fixed by means of a Velcro-type. Frontally the plate has a canal that contacts to the rear face through several holes (40) which function is to collect the dust produced on having sanded.
  • the sanding head of the invention allows adapting disks (2) of an abrasive material, preferably sanding material, whether it is a single element as shown in Figure 1 , or formed by several sheets (24) attached to one another according to inclined diametric planes, as seen in Figure 2 , to a grinding machine in a quick and simple manner, for which the head is formed by two parts (1) and (2) which are attached to one another by means of Velcro-type loop and hook system.
  • an abrasive material preferably sanding material
  • the part (1) referred to as plate throughout this specification, has a central protrusion (11) on the face opposite the grinder (3), which internally includes a threaded surface or an embedded nut (12) through which this part is locked in the screw (31) forming the shaft of the machine.
  • this plate On its front face this plate has a surface (14) of hooks or loops which must be similar to the surface (21) existing in the replaceable disk (2).
  • In the central area and on the front face it has a protrusion (15) projecting slightly through the central hole (22) of the disk (2), said protrusion performing a locking task, while at the same time it allows easily centering the disk (2) with respect to the plate (1).
  • This central area (13) is recessed so that the coupling between the disk (2) and the plate (1) through the hole (22) and the protrusion (15) is performed in a plane closer to the machine (3) than the active surface (23) of the disk (2).
  • the part (2) is in turn an abrasive sanding disk, similar to any conventional disk.
  • This disk has a rear surface (21) of loops or hooks, depending on the one existing in the plate (1) indicated with reference number (14).
  • the front surface (23) of this disk (2) is formed by a single sanding body or by several sheets (24) located in an inclined manner with respect to the plane defining said operative face (23).
  • the hole (22) is in turn located in a recess (25) towards the rear face opposite the plate (1), for the reasons mentioned above.
  • the disk (2) has an active face (23) provided with a certain tapering, its larger base being located towards the rear face and the smaller base towards the center of the active face.
  • This shape allows working in non-planar surfaces with a more uniform wear of the sanding disk (2), since this shape is better adapted on any surface without the tool therefore vibrating with use, as occurs with conventional disks.

Claims (2)

  1. Une tête de ponçage avec un disque de ponçage, dans lequel la tête de ponçage est adaptable à une ponceuse orbitale, ayant une plaque (1) pourvue sur sa face arrière avec une extrémité (11) incorporant une section filetée interne (12) dans laquelle elle est vissée et fixée à l'arbre (31) de la machine (3), ladite plaque (1) a sur sa face avant, à l'opposé et à travers de laquelle elle est fixée à la ponceuse, une surface périphérique discoïde (14) formant les moyens d'assemblage mécanique de contact pour un disque de ponçage (2) ayant sur sa face arrière, opposée à la machine, des moyens d'assemblage mécanique de contact (21) similaires à ceux qui se trouvent dans la tête (14), tous les deux formés par un système à boucles et crochets du type Velcro ; caractérisée en ce que ladite plaque (1) a de même, dans le centre de ladite face avant, une saillie axiale (15) située dans une section affaissée (13) vers la face arrière, qui est pourvue des moyens d'assemblage mécanique de contact (21) ; alors que le disque de ponçage (2) présente un trou central (22) et une section en retrait (25) vers la face arrière opposée à la plaque (1), qui dans l'accouplement avec la plaque (1) est située à l'intérieur d'une section centrale affaissée (13) existante dans ladite plaque, l'accouplement entre la saillie axiale (15) de la plaque (1) et le trou central (22) du disque de ponçage (2) étant opéré sur un plan situé sur la partie arrière, vers la machine, du plan de travail ou de la section active (23) du disque de ponçage (2).
  2. La tête de ponçage avec un disque de ponçage selon la revendication 1, caractérisée en ce que la face active ou arrière (23) du disque (2), formée par une surface de ponçage ou formée par des feuilles de ponçage (24) attachées l'une à l'autre et inclinées par rapport au plan définissant ladite face arrière, a un certaine forme conique, avec son plus grand boîtier coïncidant avec la face arrière opposée à la machine.
EP20090382216 2009-03-16 2009-10-19 Tête de sablage adaptable sur une meuleuse angulaire Active EP2230046B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200900724A ES2390545B2 (es) 2009-03-16 2009-03-16 Cabezal lijador adaptable a una amoladora orbital

Publications (2)

Publication Number Publication Date
EP2230046A1 EP2230046A1 (fr) 2010-09-22
EP2230046B1 true EP2230046B1 (fr) 2015-01-21

Family

ID=42238738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090382216 Active EP2230046B1 (fr) 2009-03-16 2009-10-19 Tête de sablage adaptable sur une meuleuse angulaire

Country Status (2)

Country Link
EP (1) EP2230046B1 (fr)
ES (1) ES2390545B2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2354670B1 (es) * 2010-12-23 2012-01-26 Salinas E Hijos S.L. Disco reutilizable para cabezal lijador.
JP5690581B2 (ja) * 2010-12-27 2015-03-25 株式会社ディスコ 切削ブレード
KR102296729B1 (ko) * 2021-06-03 2021-08-31 빈인선 밀착 효율이 높은 전동연마기 탈부착용 연마디스크

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237856A3 (fr) * 1986-03-19 1988-07-27 Hans J. Fabritius Disque supportant une feuille abrasive interchangeable
FR2701417A1 (fr) * 1993-02-15 1994-08-19 Cifap Sa Outil abrasif rotatif comportant des moyens de refroidissement.
US6059644A (en) * 1998-11-18 2000-05-09 3M Innovative Properties Company Back-up pad for abrasive articles and method of making
ES2313858B2 (es) * 2008-08-08 2010-03-10 Salinas E Hijos, S.L Herramienta para tratamiento de superficies y recambio para dicha herramienta.

Also Published As

Publication number Publication date
ES2390545A1 (es) 2012-11-14
ES2390545B2 (es) 2014-01-17
EP2230046A1 (fr) 2010-09-22

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