EP2098331A1 - Appareil de meulage manuel - Google Patents

Appareil de meulage manuel Download PDF

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Publication number
EP2098331A1
EP2098331A1 EP09152561A EP09152561A EP2098331A1 EP 2098331 A1 EP2098331 A1 EP 2098331A1 EP 09152561 A EP09152561 A EP 09152561A EP 09152561 A EP09152561 A EP 09152561A EP 2098331 A1 EP2098331 A1 EP 2098331A1
Authority
EP
European Patent Office
Prior art keywords
abrasive paper
base plate
hand grinder
paper carrier
underside
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
EP09152561A
Other languages
German (de)
English (en)
Other versions
EP2098331B1 (fr
Inventor
Zbigniew Noniewicz
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.)
Wolfcraft GmbH
Original Assignee
Wolfcraft GmbH
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 Wolfcraft GmbH filed Critical Wolfcraft GmbH
Publication of EP2098331A1 publication Critical patent/EP2098331A1/fr
Application granted granted Critical
Publication of EP2098331B1 publication Critical patent/EP2098331B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/02—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface
    • 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
    • B24D15/04—Hand tools or other devices for non-rotary grinding, polishing, or stropping resilient; with resiliently-mounted operative surface

Definitions

  • the invention relates to a hand grinder with a handle body, arranged on the underside of the handle body abrasive paper support and two facing away from each other sides of the handle body or the abrasive paper carrier, each two juxtaposed against each other jaws having clamping means for clamping the ends of a stretched over the underside of the abrasive paper carrier sandpaper.
  • the abrasive paper carrier has there a substantially rectangular floor plan and consists of a base plate, which is lined by a foam rubber pad. From the base plate rises a handle base, which forms a handle body. The underside of the handle base is firmly connected to the base plate of the abrasive paper carrier. On the two sides facing away from each other narrow sides of the base plate are jaws, which can be brought by a toggle handle from a distance position in a clamping position. A movable jaw sits for this purpose on a projecting from the base pin and is held by a compression spring in the release position. In this position, one end of a sandpaper sheet can be placed between the jaws. If the movable jaw brought into the clamping position by pivoting the knob, the end between the two jaws is fixed. The sandpaper sheet is stretched over the underside of the abrasive paper backing.
  • a similar device describes the WO 2006/118864 A1 ,
  • the movable jaws are each assigned to the abrasive paper support pivotable about an axis.
  • the invention has the object of developing a generic hand tool benefits advantageous.
  • each claim represents an independent solution to the problem and can be combined with any other claim.
  • the respective two jaws of a portion of the underside of the handle body and a spring-loaded on the underside of the handle body with the interposition of the respective end of the abrasive paper adjacent portion of an upper surface of the abrasive paper carrier is formed.
  • the Schleipapieriki is flexurally elastic.
  • this base plate can also be formed by a rigid, rigid body. Two edge portion facing away from this base plate each form a jaw of a respective clamping device. The corresponding other jaws are formed by the handle body.
  • the handle body may form a base plate corresponding to the outline contour of the base plate of the abrasive paper carrier.
  • the jaws of the handle body are formed by the underside of this base plate.
  • the base plate associated with the handle body can form a central opening which is covered by a handle base.
  • the handle base thus forms a cavity and the underside of the handle body forms the edge of the cavity.
  • Within the cavity may be one or more fasteners for each one tension spring.
  • these fasteners are located on the ceiling the cavity.
  • the other ends of the tension springs are connected to attachments of the abrasive paper carrier and in particular to fastenings formed by the base plate of the abrasive paper carrier.
  • the tension springs are designed so that they are permanently tensioned, so act on the base plate of the abrasive paper carrier against the base plate of the handle body. These tension springs form the clamping force with which the two clamping jaws are pressed against each other. In the region of the mutually away facing ends of the handle body associated base plate, the latter carries a respective expansion element.
  • the expansion element is a two-armed lever. He has an actuating arm and a Sp Dr. The actuating arm is in the clamping position in which the two clamping jaws are pressed against each other by spring force, in a recess of the base plate.
  • the other side of the actuating arm projecting Sp Sonarm the expansion element is in an expanded position in which the expansion element can be brought by rotation about an axis of rotation by about 90 °, at the top of the abrasive paper carrier.
  • the clamping force of the tension springs which are stretched further during spreading, keeps the expansion element in the expanded position.
  • the end portions of the upper side of the abrasive paper carrier are removed from the end portions of the underside of the handle body, so that, in conjunction with a particular only local spacing of the base plate of the handle body and the base plate of the abrasive paper carrier a gap-shaped opening forms, in which the end of the sandpaper can be inserted.
  • the base plate of the abrasive paper carrier is made of a flexible material and in particular flexible, the base plate can bow in an arc. If, on the other hand, the base plate is made of a material that is stiff with material, the base plate associated with the abrasive paper carrier pivots about the opposite clamping device when pivoting a spreading element. If the spreading lever associated with this clamping device is pivoted into the spread position, then a total of between forms the two base plates from a continuous gap. In an abrasive paper carrier made of flexible material, the two base plates can touch even in the spread position in the middle area.
  • the grip body consisting of a hard plastic is provided in the region of its grip base with a soft-plastic overlay.
  • the hand grinder consists of a made of a plastic handle body 1 and also made of plastic abrasive paper carrier. 2
  • the handle body 1 consists of a substantially rectangular outline contour having base plate 20, from the center of which a handle base 22 rises.
  • the top of the handle base 22 is provided with a soft plastic support 18.
  • each of the handle base 22 superior narrow ends of the base plate 20 form with their lower sides 6 each end jaws 4.
  • each spreading lever 16 are rotatably mounted in the base plate 20.
  • the base plate forms a recess 19 and a rotation axis 17 about which the two-armed expansion element 16 designed as an expansion lever is pivotable.
  • An outwardly projecting actuating arm 16 'of the expansion lever 16 is located in a clamping position in the recess 19 and can be brought by pivoting about 90 ° about the axis of rotation 17 in an expanded position.
  • a spreading portion 16 "of the expansion lever 16 protrudes from the bottom 6 of the handle body 1 out.
  • the base plate 2 of the abrasive paper carrier is slightly flexurally flexible and made of plastic in the embodiment.
  • the upper side 7 of the abrasive paper carrier 2 is in the clamping position substantially flat against the bottom 6 of the handle body 1 at.
  • the two facing away from each other narrow sides of the contour of the base plate 20 corresponding base plate 21 forms Jaws 5 off.
  • the jaws 5 are in opposition to jaws 4, which are formed from the bottom 6 of the handle body 1. Both jaws have sawtooth, parallel to the narrow edge edge extending ribs, which engage in the clamping position and the end 11 of an abrasive paper 10 can accommodate between them.
  • the underside of the base plate 21 of the abrasive paper carrier 2 is provided with a rubber pad 9.
  • the underside of the rubber pad 9 forms the underside 8 of the abrasive paper carrier 2, over which the sandpaper 10 is stretched, the two ends 11 is clamped in each case a clamping device 3, wherein each of the two clamping devices 3 of two jaws 4, 5 is formed.
  • the abrasive paper carrier 2 is connected to the handle body 1 only with the two mentioned tension springs 13, which are received by the cavity 12. These tension springs 13 serve not only the permanent attachment of the abrasive paper substrate 2 on the handle body 1. They also provide the clamping force with which the respective jaws 4, 5 are pressed against each other to hold the ends 11 of the abrasive paper 10. If the expansion element 16 of the in FIG. 1 illustrated clamping position in which it rests in the recess 19, in the in FIG.
  • the tension spring 13 is tensioned.
  • the tension of the tension spring 13 holds the expansion element 16 not only in the tensioning position, but also in the expanded position
  • the upper side of the base plate 21 of the abrasive paper carrier 2 can form troughs 23 in the area of the rotation axes 17. These troughs 23 can act as detenting cavities into which the Sp Dahlarm 16 "can occur in the spread position.
  • the base plate 21 of the abrasive paper carrier may slightly bend, which is associated with a shortening of the distance between the two ends of the base plate 21.
  • the two ends 11 of the abrasive paper 10 can be removed from the clamping devices 3 and the ends 11 of a new abrasive paper 10 are brought into the clamping device 3.
  • the spreading elements 16 are moved back into the clamping position, so that the ends 11 are clamped between the jaws 4.
  • the rubber pad 9 is connected only in the region of the clamping jaw 5 forming ends with the underside of the base plate 21, so that in the spread position due to the deflection of the base plate 21, a gap between the base plate 21 and rubber pad 9 is formed.
  • this gap is not formed.
  • handle body 1 or abrasive paper carrier 2 form under or over-reachable projections such as pins, eyelets or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP09152561A 2008-03-06 2009-02-11 Appareil de meulage manuel Active EP2098331B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008012968.2A DE102008012968B4 (de) 2008-03-06 2008-03-06 Handschleifgerät

Publications (2)

Publication Number Publication Date
EP2098331A1 true EP2098331A1 (fr) 2009-09-09
EP2098331B1 EP2098331B1 (fr) 2010-09-01

Family

ID=40749197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09152561A Active EP2098331B1 (fr) 2008-03-06 2009-02-11 Appareil de meulage manuel

Country Status (2)

Country Link
EP (1) EP2098331B1 (fr)
DE (2) DE102008012968B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10980396B2 (en) * 2018-04-24 2021-04-20 Krampouz Device for fixing a wiping felt and assembly including the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503619A (en) * 1948-09-14 1950-04-11 Indiana Steel Products Co Magnetic sandpaper holder
DE4404448A1 (de) 1993-02-20 1994-08-25 Storchwerke Gmbh Handschleifwerkzeug
WO1998019831A1 (fr) * 1996-11-01 1998-05-14 Poole Daniel L Bloc de ponçage
US5902176A (en) 1997-10-07 1999-05-11 Chen; Kun-You Clamping device for a sanding tool
US6634937B1 (en) * 2000-04-28 2003-10-21 Toby Edwards Clamping sander
WO2006118864A1 (fr) 2005-04-29 2006-11-09 3M Innovative Properties Company Bloc de poncage de details

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20007547U1 (de) * 2000-04-26 2000-06-29 Reik, Eugen, 73037 Göppingen Handschleifgerät

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503619A (en) * 1948-09-14 1950-04-11 Indiana Steel Products Co Magnetic sandpaper holder
DE4404448A1 (de) 1993-02-20 1994-08-25 Storchwerke Gmbh Handschleifwerkzeug
WO1998019831A1 (fr) * 1996-11-01 1998-05-14 Poole Daniel L Bloc de ponçage
US5902176A (en) 1997-10-07 1999-05-11 Chen; Kun-You Clamping device for a sanding tool
US6634937B1 (en) * 2000-04-28 2003-10-21 Toby Edwards Clamping sander
WO2006118864A1 (fr) 2005-04-29 2006-11-09 3M Innovative Properties Company Bloc de poncage de details

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10980396B2 (en) * 2018-04-24 2021-04-20 Krampouz Device for fixing a wiping felt and assembly including the same

Also Published As

Publication number Publication date
DE102008012968B4 (de) 2017-08-24
DE102008012968A1 (de) 2009-09-10
DE502009000079D1 (de) 2010-10-14
EP2098331B1 (fr) 2010-09-01

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