EP2230046A1 - Schleifkopf, der für einen Winkelschleifer anpassbar ist - Google Patents

Schleifkopf, der für einen Winkelschleifer anpassbar ist Download PDF

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Publication number
EP2230046A1
EP2230046A1 EP09382216A EP09382216A EP2230046A1 EP 2230046 A1 EP2230046 A1 EP 2230046A1 EP 09382216 A EP09382216 A EP 09382216A EP 09382216 A EP09382216 A EP 09382216A EP 2230046 A1 EP2230046 A1 EP 2230046A1
Authority
EP
European Patent Office
Prior art keywords
sanding
disk
plate
machine
front face
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
EP09382216A
Other languages
English (en)
French (fr)
Other versions
EP2230046B1 (de
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
Original Assignee
Salinas e Hijos SL
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 Salinas e Hijos SL filed Critical Salinas e Hijos SL
Publication of EP2230046A1 publication Critical patent/EP2230046A1/de
Application granted granted Critical
Publication of EP2230046B1 publication Critical patent/EP2230046B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • 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.
  • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP09382216.1A 2009-03-16 2009-10-19 Schleifkopf, der für einen Winkelschleifer anpassbar ist Active EP2230046B1 (de)

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 true EP2230046A1 (de) 2010-09-22
EP2230046B1 EP2230046B1 (de) 2015-01-21

Family

ID=42238738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09382216.1A Active EP2230046B1 (de) 2009-03-16 2009-10-19 Schleifkopf, der für einen Winkelschleifer anpassbar ist

Country Status (2)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2354670A1 (es) * 2010-12-23 2011-03-17 Salinas Ehijos S.L. Disco reutilizable para cabezal lijador.
JP2012135833A (ja) * 2010-12-27 2012-07-19 Disco Corp 切削ブレード
CN115431133A (zh) * 2021-06-03 2022-12-06 宾仁善 紧贴效率高的电动研磨机可拆卸用研磨盘

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237856A2 (de) * 1986-03-19 1987-09-23 Hans J. Fabritius Stützteller für ein auswechselbares Schleifscheibenblatt
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
ES2313858A1 (es) * 2008-08-08 2009-03-01 Salinas E Hijos, S.L Herramienta para tratamiento de superficies y recambio para dicha herramienta.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237856A2 (de) * 1986-03-19 1987-09-23 Hans J. Fabritius Stützteller für ein auswechselbares Schleifscheibenblatt
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
ES2313858A1 (es) * 2008-08-08 2009-03-01 Salinas E Hijos, S.L Herramienta para tratamiento de superficies y recambio para dicha herramienta.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2354670A1 (es) * 2010-12-23 2011-03-17 Salinas Ehijos S.L. Disco reutilizable para cabezal lijador.
JP2012135833A (ja) * 2010-12-27 2012-07-19 Disco Corp 切削ブレード
CN115431133A (zh) * 2021-06-03 2022-12-06 宾仁善 紧贴效率高的电动研磨机可拆卸用研磨盘
US20220388123A1 (en) * 2021-06-03 2022-12-08 Insun BIN Detachable grinding disk for electric grinder with high adhesion efficiency
CN115431133B (zh) * 2021-06-03 2023-11-28 宾仁善 紧贴效率高的电动研磨机可拆卸用研磨盘

Also Published As

Publication number Publication date
ES2390545A1 (es) 2012-11-14
ES2390545B2 (es) 2014-01-17
EP2230046B1 (de) 2015-01-21

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