EP0244203A3 - Rotary power tools - Google Patents

Rotary power tools Download PDF

Info

Publication number
EP0244203A3
EP0244203A3 EP87303751A EP87303751A EP0244203A3 EP 0244203 A3 EP0244203 A3 EP 0244203A3 EP 87303751 A EP87303751 A EP 87303751A EP 87303751 A EP87303751 A EP 87303751A EP 0244203 A3 EP0244203 A3 EP 0244203A3
Authority
EP
European Patent Office
Prior art keywords
plunger
spindle
plate
recesses
slots
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.)
Withdrawn
Application number
EP87303751A
Other languages
German (de)
French (fr)
Other versions
EP0244203A2 (en
Inventor
Leslie Walter Ford
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.)
Kango Ltd
Original Assignee
Kango Ltd
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 Kango Ltd filed Critical Kango Ltd
Publication of EP0244203A2 publication Critical patent/EP0244203A2/en
Publication of EP0244203A3 publication Critical patent/EP0244203A3/en
Withdrawn legal-status Critical Current

Links

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
    • B24B23/022—Spindle-locking devices, e.g. for mounting or removing the tool
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A bevel gear 15 secured on a spindle 16 is driven in rotation by a motor. On the spindle is disposed a grinding disc held by a retaining nut and the bevel gear is formed with two recesses 21 into which a plunger can be depressed. A barrier plate 27 is disposed about the spindle and is capable of a degree of lost motion with respect thereto, the plate 27 also having two slots 29 through which the plunger can extend. The leading edges 31 of the slots are raised so that depression of the plunger during use of the tool causes the plunger to engage the edges 31 thereby causing the plate to take up said lost motion and cover up the recesses 21 to prevent the plunger from engaging therein. Sudden stopping of the spindle and its dangerous consequences are thus avoided.
EP87303751A 1986-04-29 1987-04-28 Rotary power tools Withdrawn EP0244203A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8610431 1986-04-29
GB868610431A GB8610431D0 (en) 1986-04-29 1986-04-29 Rotary power tools

Publications (2)

Publication Number Publication Date
EP0244203A2 EP0244203A2 (en) 1987-11-04
EP0244203A3 true EP0244203A3 (en) 1989-07-12

Family

ID=10597021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87303751A Withdrawn EP0244203A3 (en) 1986-04-29 1987-04-28 Rotary power tools

Country Status (2)

Country Link
EP (1) EP0244203A3 (en)
GB (1) GB8610431D0 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998024589A1 (en) * 1996-12-05 1998-06-11 Robert Bosch Gmbh Manually operated machine-tool
DE19706671A1 (en) * 1997-02-20 1998-08-27 Scintilla Ag Hand tool
DE19748735C2 (en) 1997-11-05 1999-08-05 Pmv D O O Drilling or milling head
DE19753304A1 (en) * 1997-12-02 1999-06-10 Scintilla Ag Device for locking a shaft
DE59801010D1 (en) 1998-08-28 2001-08-16 Ceka Elektrowerkzeuge Ag & Co Automatic spindle lock
US7988538B2 (en) 2006-10-13 2011-08-02 Black & Decker Inc. Large angle grinder
DE102007042722A1 (en) * 2007-09-07 2009-03-12 Robert Bosch Gmbh Hand tool with spindle lock
CN201970187U (en) * 2010-12-24 2011-09-14 铁鎯电动工具有限公司 Double-wheel abrader and double-wheel polisher
CN103862338B (en) * 2012-12-12 2016-08-17 苏州宝时得电动工具有限公司 There is the angle grinding machine of push-down stop mechanism
CN207189852U (en) 2017-06-05 2018-04-06 米沃奇电动工具公司 Bench saw
CN109909831B (en) * 2017-12-12 2021-09-21 南京德朔实业有限公司 Angle grinder

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872951A (en) * 1973-11-06 1975-03-25 Black & Decker Mfg Co Spindle locking mechanism for rotary power device
DE2926469A1 (en) * 1979-06-30 1981-01-22 Licentia Gmbh Arresting device for drive spindle in power tool - has magnetic coil releasing bolt that locks gearing
DE3001907A1 (en) * 1980-01-19 1981-07-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Spindle locking mechanism for hand held grinder - has peg blocking gearwheel on spindle, operated by sliding power supply switch
DE3018775A1 (en) * 1980-05-16 1981-11-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Portable grinder drive bevel gear - has recesses for spring loaded locking bolt and inclined cam tracks between recesses
DE3120899A1 (en) * 1981-05-26 1982-12-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Stopping device for the drive spindle of angle grinders
DE3120871A1 (en) * 1981-05-26 1982-12-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Stopping device for the drive spindle of angle grinders or similar electric tools
DE3234254A1 (en) * 1981-09-23 1983-04-07 Milwaukee Electric Tool Corp., 53005 Brookfield, Wis. MOTORIZED TOOL
EP0129348A2 (en) * 1983-06-17 1984-12-27 Black & Decker Inc. Locking mechanism for a rotary power machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872951A (en) * 1973-11-06 1975-03-25 Black & Decker Mfg Co Spindle locking mechanism for rotary power device
DE2926469A1 (en) * 1979-06-30 1981-01-22 Licentia Gmbh Arresting device for drive spindle in power tool - has magnetic coil releasing bolt that locks gearing
DE3001907A1 (en) * 1980-01-19 1981-07-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Spindle locking mechanism for hand held grinder - has peg blocking gearwheel on spindle, operated by sliding power supply switch
DE3018775A1 (en) * 1980-05-16 1981-11-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Portable grinder drive bevel gear - has recesses for spring loaded locking bolt and inclined cam tracks between recesses
DE3120899A1 (en) * 1981-05-26 1982-12-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Stopping device for the drive spindle of angle grinders
DE3120871A1 (en) * 1981-05-26 1982-12-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Stopping device for the drive spindle of angle grinders or similar electric tools
DE3234254A1 (en) * 1981-09-23 1983-04-07 Milwaukee Electric Tool Corp., 53005 Brookfield, Wis. MOTORIZED TOOL
EP0129348A2 (en) * 1983-06-17 1984-12-27 Black & Decker Inc. Locking mechanism for a rotary power machine

Also Published As

Publication number Publication date
GB8610431D0 (en) 1986-06-04
EP0244203A2 (en) 1987-11-04

Similar Documents

Publication Publication Date Title
WO1995017991A3 (en) Machine-tool
EP0244203A3 (en) Rotary power tools
DE3478206D1 (en) Hand-held power tool with shaft lock
CA2213902A1 (en) Reversible angle grinder with arbour lock
SE8602791D0 (en) A TWO-SPEED POWER TOOL
GB1484694A (en) Electric hand tool
ES8201054A1 (en) Machine tool
GB1508927A (en) Motor-driven electrical appliance
EP0139241A3 (en) Rotary floor maintenance device
DE3569628D1 (en) Rotary drive apparatus for a disc
ES8704108A1 (en) Grinding head.
ES8104542A1 (en) Drive arrangement for a rotating unit.
ES2008380A6 (en) Portable hand tool, in particular angled grinding machine.
EP0147545A3 (en) Device for releasably securing especially a grinding disc to a portable power tool
EP0220359A3 (en) Live tooling turret
ES8404893A1 (en) Thread cutting tool
EP0206648A3 (en) Mechanism for securing a container to a compactor
EP0297468A3 (en) Device for securing a saw blade
CA2007433A1 (en) Band saw attachment for multipurpose power tool
ES8607087A1 (en) Device for grinding chain saw teeth.
EP0231085A3 (en) Machines and housings
WO1992008573A3 (en) Improvements in or relating to machine tools
EP1207020A3 (en) Portable power tool with grease lubricated angle drive
CN210388714U (en) Novel efficient burnishing machine
CN211029215U (en) Protective device for numerical control machine tool

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KANGO LIMITED

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19900109

17Q First examination report despatched

Effective date: 19910123

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19910604

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FORD, LESLIE WALTER