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GB2096510B - A motor driven power tool - Google Patents

A motor driven power tool

Info

Publication number
GB2096510B
GB2096510B GB8210479A GB8210479A GB2096510B GB 2096510 B GB2096510 B GB 2096510B GB 8210479 A GB8210479 A GB 8210479A GB 8210479 A GB8210479 A GB 8210479A GB 2096510 B GB2096510 B GB 2096510B
Authority
GB
United Kingdom
Prior art keywords
power tool
motor driven
driven power
clutch
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.)
Expired
Application number
GB8210479A
Other versions
GB2096510A (en
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.)
Air Compressors and Tools Ltd
Original Assignee
Desoutter 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 Desoutter Ltd filed Critical Desoutter Ltd
Publication of GB2096510A publication Critical patent/GB2096510A/en
Application granted granted Critical
Publication of GB2096510B publication Critical patent/GB2096510B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Power Steering Mechanism (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

The tool comprises a casing (12) which contains an electric motor (11) connected to a tool holder (17) via a gear box (14) and a torque sensitive clutch (15), (16), (21), (22). The tool also includes switch means operable to cut off the motor when a torque above a predetermined value is transmitted across the clutch. The switch means includes a Hall effect device comprising a stationary Hall effect element (43) and a magnet (37) movable with a rod (32) in response to operation of the torque sensitive clutch.
GB8210479A 1981-04-13 1982-04-08 A motor driven power tool Expired GB2096510B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8111620 1981-04-13

Publications (2)

Publication Number Publication Date
GB2096510A GB2096510A (en) 1982-10-20
GB2096510B true GB2096510B (en) 1985-01-23

Family

ID=10521122

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8210479A Expired GB2096510B (en) 1981-04-13 1982-04-08 A motor driven power tool

Country Status (4)

Country Link
EP (1) EP0063460B1 (en)
AT (1) ATE24140T1 (en)
DE (1) DE3274631D1 (en)
GB (1) GB2096510B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61121877A (en) * 1984-11-16 1986-06-09 松下電器産業株式会社 electric screwdriver
DE3443670A1 (en) * 1984-11-30 1986-06-05 C. & E. Fein Gmbh & Co, 7000 Stuttgart POWER-DRIVEN SCREW DEVICE WITH VARIABLE TORQUE ADJUSTMENT
GB2195569B (en) * 1986-10-01 1990-04-04 Desoutter Ltd Power tools
SE461510B (en) * 1986-11-27 1990-02-26 Atlas Copco Ab ACTIVATION ARRANGEMENTS FOR ELECTRIC SCREW CARRIER
EP0309627B1 (en) * 1987-09-30 1993-06-16 International Business Machines Corporation Apparatus for connecting data processing equipment to a telephone network
DE4019895C2 (en) * 1990-06-22 1999-04-08 Ceka Elektrowerkzeuge Ag & Co Method and device for controlling the operation of handheld electrical devices
JP2721768B2 (en) * 1992-03-12 1998-03-04 リョービ株式会社 Battery operated screwdriver
GB2271522B (en) * 1992-10-08 1995-03-29 Desoutter Ltd Power tool with control means responsive to reaction torque
US5310010A (en) * 1993-08-05 1994-05-10 Lo Juey Y Automatic overload release and power stoppage device
US5738177A (en) * 1995-07-28 1998-04-14 Black & Decker Inc. Production assembly tool
DE19737234B4 (en) * 1997-08-27 2004-03-11 Scintilla Ag Tools, especially cordless screwdrivers
DE19738094C1 (en) * 1997-09-01 1999-03-04 Bosch Gmbh Robert Impact wrench
JP2012135845A (en) * 2010-12-27 2012-07-19 Makita Corp Work tool

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1457496A (en) * 1975-04-30 1976-12-01 Desoutter Brothers Ltd Power operated torque applying tool

Also Published As

Publication number Publication date
EP0063460A2 (en) 1982-10-27
EP0063460A3 (en) 1984-01-04
GB2096510A (en) 1982-10-20
EP0063460B1 (en) 1986-12-10
DE3274631D1 (en) 1987-01-22
ATE24140T1 (en) 1986-12-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950408