ATE24140T1 - MOTOR-DRIVEN DEVICE. - Google Patents

MOTOR-DRIVEN DEVICE.

Info

Publication number
ATE24140T1
ATE24140T1 AT82301895T AT82301895T ATE24140T1 AT E24140 T1 ATE24140 T1 AT E24140T1 AT 82301895 T AT82301895 T AT 82301895T AT 82301895 T AT82301895 T AT 82301895T AT E24140 T1 ATE24140 T1 AT E24140T1
Authority
AT
Austria
Prior art keywords
motor
clutch
tool
switch means
hall effect
Prior art date
Application number
AT82301895T
Other languages
German (de)
Inventor
Simon Patrick Brown
Joshua Nee Adjah Okunor
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
Application granted granted Critical
Publication of ATE24140T1 publication Critical patent/ATE24140T1/en

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.
AT82301895T 1981-04-13 1982-04-08 MOTOR-DRIVEN DEVICE. ATE24140T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8111620 1981-04-13
EP82301895A EP0063460B1 (en) 1981-04-13 1982-04-08 Motor driven power tool

Publications (1)

Publication Number Publication Date
ATE24140T1 true ATE24140T1 (en) 1986-12-15

Family

ID=10521122

Family Applications (1)

Application Number Title Priority Date Filing Date
AT82301895T ATE24140T1 (en) 1981-04-13 1982-04-08 MOTOR-DRIVEN DEVICE.

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 Electromotive driver
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
DE3786266T2 (en) * 1987-09-30 1993-12-02 Ibm Device for connecting a data processing device 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
EP0063460A3 (en) 1984-01-04
GB2096510B (en) 1985-01-23
EP0063460A2 (en) 1982-10-27
GB2096510A (en) 1982-10-20
DE3274631D1 (en) 1987-01-22
EP0063460B1 (en) 1986-12-10

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties