US20120244788A1 - Power tool - Google Patents

Power tool Download PDF

Info

Publication number
US20120244788A1
US20120244788A1 US13/401,308 US201213401308A US2012244788A1 US 20120244788 A1 US20120244788 A1 US 20120244788A1 US 201213401308 A US201213401308 A US 201213401308A US 2012244788 A1 US2012244788 A1 US 2012244788A1
Authority
US
United States
Prior art keywords
spindle
inner member
disc
pair
tool
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.)
Abandoned
Application number
US13/401,308
Other languages
English (en)
Inventor
Fumitoshi Numata
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.)
Makita Corp
Original Assignee
Makita Corp
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 Makita Corp filed Critical Makita Corp
Assigned to MAKITA CORPORATION reassignment MAKITA CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NUMATA, FUMITOSHI
Publication of US20120244788A1 publication Critical patent/US20120244788A1/en
Abandoned legal-status Critical Current

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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
    • B24B23/028—Angle tools
    • 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

Definitions

  • a disc-like tool penetrated through a tip of a spindle is held between a nut member tightened on the tip of the spindle, and an inner member provided in a main body of the grinder and configured to prevent the nut member from rotating in a direction to loosen during operation of the brake device.
  • This grinder includes the inner member having one wedge member, and the spindle having the other wedge member.
  • the inner member slidingly contacts the other wedge member on the spindle, the inner member is pressed toward the disc-like tool, and then the nut member is pressed via the disc-like tool. Consequently, the nut member can be prevented from rotating in a direction to loosen.
  • the disc-like tool is integrated with a spindle by being held between an inner member such as an inner flange and a nut member.
  • an inner member such as an inner flange and a nut member.
  • a user attaches the inner member configured to prevent the nut member from loosening to the spindle as disclosed in European Patent No. 1,663,574, he may misunderstand the inner member as a member configured only to prevent the nut member from loosening, and additionally attach a member configured to hold the disc-like tool.
  • the pair of flange portions 16 A and 16 B are shaped to protrude in a radial direction of the spindle 16 at positions symmetrical with respect to the axis of the spindle 16 , and are provided integrally with the spindle 16 .
  • the lower surfaces of the pair of flange portions 16 A and 16 B are tilted surfaces 19 A and 19 B that form a predetermined angle with respect to a plane perpendicular to the axis of the spindle 16 .
  • the flange portions 16 A and 16 B are an example of the pressing portion of the present invention.
  • the tilted surfaces 19 A and 19 B are an example of the pressing surface of the first inner member of the present invention, and the tilted surfaces 24 A and 24 B are an example of the pressed surface of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Gripping On Spindles (AREA)
  • Portable Power Tools In General (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
US13/401,308 2011-03-23 2012-02-21 Power tool Abandoned US20120244788A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011064688A JP2012200794A (ja) 2011-03-23 2011-03-23 電動工具
JP2011-064688 2011-03-23

Publications (1)

Publication Number Publication Date
US20120244788A1 true US20120244788A1 (en) 2012-09-27

Family

ID=45656500

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/401,308 Abandoned US20120244788A1 (en) 2011-03-23 2012-02-21 Power tool

Country Status (5)

Country Link
US (1) US20120244788A1 (zh)
EP (1) EP2502704A1 (zh)
JP (1) JP2012200794A (zh)
CN (1) CN102689293A (zh)
RU (1) RU2012111083A (zh)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120012429A1 (en) * 2010-07-16 2012-01-19 Makita Corporation Installment structure for braking mechanism in power tool
US20130284551A1 (en) * 2010-10-29 2013-10-31 Robert Bosch Gmbh Power Tool Braking Device
US8913967B2 (en) 2010-04-20 2014-12-16 Rf Micro Devices, Inc. Feedback based buck timing of a direct current (DC)-DC converter
US8942650B2 (en) 2010-04-20 2015-01-27 Rf Micro Devices, Inc. RF PA linearity requirements based converter operating mode selection
US8958763B2 (en) 2010-04-20 2015-02-17 Rf Micro Devices, Inc. PA bias power supply undershoot compensation
US8983407B2 (en) 2010-04-20 2015-03-17 Rf Micro Devices, Inc. Selectable PA bias temperature compensation circuitry
US9030256B2 (en) 2010-04-20 2015-05-12 Rf Micro Devices, Inc. Overlay class F choke
US11396078B2 (en) * 2019-06-10 2022-07-26 Makita Corporation Grinder
US11426838B2 (en) 2017-07-14 2022-08-30 Makita Corporation Rotating tool

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107471044A (zh) * 2016-06-08 2017-12-15 南京德朔实业有限公司 手持式电动工具
CN115533705A (zh) * 2017-01-13 2022-12-30 株式会社牧田 电动工具
US20220063047A1 (en) 2020-08-28 2022-03-03 Black & Decker Inc. Retention flange for power tool

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899852A (en) * 1974-08-23 1975-08-19 Singer Co Spindle drive assembly for a surface-treating machine
US5261190A (en) * 1989-03-02 1993-11-16 Robert Bosch Gmbh Eccentric grinder
US5464365A (en) * 1991-09-21 1995-11-07 Robert Bosch Gmbh Motor-driven hand-held machine tool
US5679066A (en) * 1992-07-10 1997-10-21 Robert Bosch Gmbh Eccentric disk grinder with a grinding disk brake
US5718621A (en) * 1996-09-11 1998-02-17 Turley; Edward Michael Reversible angle grinder with top arbour lock
US6264539B1 (en) * 2000-01-12 2001-07-24 Tony Chen Mechanism for slowing down idling shoe of an electric polisher
US20020106982A1 (en) * 2000-06-29 2002-08-08 Steffen Wuensch Eccentric plate grinding machine with a cylindrical housing
US6523214B1 (en) * 2000-06-14 2003-02-25 Richard A. Kaiser Quick mount attachment for rotary finishing tool
US20040043714A1 (en) * 2002-06-13 2004-03-04 Zhiyong Yi Power tool with a clamping device for axially securing a disk shaped tool
US6780094B2 (en) * 2001-07-20 2004-08-24 Black & Decker Inc. Oscillating hand tool
US20070167120A1 (en) * 2006-01-16 2007-07-19 Michael Habele Clamping fixture for detachably fastening a disk-shaped tool
US8231438B2 (en) * 2006-07-03 2012-07-31 Robert Bosch Gmbh Electric hand-held power tool

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3613987A1 (de) * 1986-04-25 1987-10-29 Metabowerke Kg Vorrichtung zum loesbaren befestigen einer schleifscheibe
DE19510291C2 (de) * 1995-03-22 1998-09-24 Bosch Gmbh Robert Handwerkzeugmaschine mit Bremseinrichtung
DE19650364A1 (de) * 1996-12-05 1998-06-10 Bosch Gmbh Robert Handwerkzeugmaschine
JP3542737B2 (ja) * 1999-04-16 2004-07-14 株式会社マキタ 電動工具におけるロックナットの緩み防止機構
DE10017458A1 (de) * 2000-04-07 2001-10-18 Bosch Gmbh Robert Schleifmaschinenwerkzeugaufnahme
DE10017457A1 (de) * 2000-04-07 2001-10-11 Bosch Gmbh Robert Schleifmaschinenwerkzeugaufnahme
DE10337853A1 (de) * 2003-08-18 2005-03-17 Robert Bosch Gmbh Handwerkzeugmaschine
EP2123380A4 (en) * 2007-01-09 2011-10-12 Makita Corp FIXING DEVICE FOR ROTATING BLADE TOOL

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899852A (en) * 1974-08-23 1975-08-19 Singer Co Spindle drive assembly for a surface-treating machine
US5261190A (en) * 1989-03-02 1993-11-16 Robert Bosch Gmbh Eccentric grinder
US5464365A (en) * 1991-09-21 1995-11-07 Robert Bosch Gmbh Motor-driven hand-held machine tool
US5679066A (en) * 1992-07-10 1997-10-21 Robert Bosch Gmbh Eccentric disk grinder with a grinding disk brake
US5718621A (en) * 1996-09-11 1998-02-17 Turley; Edward Michael Reversible angle grinder with top arbour lock
US6264539B1 (en) * 2000-01-12 2001-07-24 Tony Chen Mechanism for slowing down idling shoe of an electric polisher
US6523214B1 (en) * 2000-06-14 2003-02-25 Richard A. Kaiser Quick mount attachment for rotary finishing tool
US20020106982A1 (en) * 2000-06-29 2002-08-08 Steffen Wuensch Eccentric plate grinding machine with a cylindrical housing
US6780094B2 (en) * 2001-07-20 2004-08-24 Black & Decker Inc. Oscillating hand tool
US20040043714A1 (en) * 2002-06-13 2004-03-04 Zhiyong Yi Power tool with a clamping device for axially securing a disk shaped tool
US20070167120A1 (en) * 2006-01-16 2007-07-19 Michael Habele Clamping fixture for detachably fastening a disk-shaped tool
US8231438B2 (en) * 2006-07-03 2012-07-31 Robert Bosch Gmbh Electric hand-held power tool

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8913967B2 (en) 2010-04-20 2014-12-16 Rf Micro Devices, Inc. Feedback based buck timing of a direct current (DC)-DC converter
US8942650B2 (en) 2010-04-20 2015-01-27 Rf Micro Devices, Inc. RF PA linearity requirements based converter operating mode selection
US8958763B2 (en) 2010-04-20 2015-02-17 Rf Micro Devices, Inc. PA bias power supply undershoot compensation
US8983407B2 (en) 2010-04-20 2015-03-17 Rf Micro Devices, Inc. Selectable PA bias temperature compensation circuitry
US9030256B2 (en) 2010-04-20 2015-05-12 Rf Micro Devices, Inc. Overlay class F choke
US20120012429A1 (en) * 2010-07-16 2012-01-19 Makita Corporation Installment structure for braking mechanism in power tool
US8596427B2 (en) * 2010-07-16 2013-12-03 Makita Corporation Installment structure for braking mechanism in power tool
US20130284551A1 (en) * 2010-10-29 2013-10-31 Robert Bosch Gmbh Power Tool Braking Device
US9360064B2 (en) * 2010-10-29 2016-06-07 Robert Bosch Gmbh Power tool braking device
US11426838B2 (en) 2017-07-14 2022-08-30 Makita Corporation Rotating tool
US11396078B2 (en) * 2019-06-10 2022-07-26 Makita Corporation Grinder

Also Published As

Publication number Publication date
EP2502704A1 (en) 2012-09-26
CN102689293A (zh) 2012-09-26
JP2012200794A (ja) 2012-10-22
RU2012111083A (ru) 2013-09-27

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MAKITA CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NUMATA, FUMITOSHI;REEL/FRAME:027759/0922

Effective date: 20120210

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION