EP0066385A3 - Power tool - Google Patents

Power tool Download PDF

Info

Publication number
EP0066385A3
EP0066385A3 EP82302411A EP82302411A EP0066385A3 EP 0066385 A3 EP0066385 A3 EP 0066385A3 EP 82302411 A EP82302411 A EP 82302411A EP 82302411 A EP82302411 A EP 82302411A EP 0066385 A3 EP0066385 A3 EP 0066385A3
Authority
EP
European Patent Office
Prior art keywords
generating
output shaft
tool
values
motor
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Withdrawn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
EP82302411A
Other languages
German (de)
French (fr)
Other versions
EP0066385A2 (en
Inventor
John Peter Hancocks
Samuel James Adams
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.)
Ford Werke GmbH
Ford France SA
Desitech Ltd
Ford Motor Co Ltd
Original Assignee
Ford Werke GmbH
Ford France SA
Desitech Ltd
Ford Motor Co 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 Ford Werke GmbH, Ford France SA, Desitech Ltd, Ford Motor Co Ltd filed Critical Ford Werke GmbH
Publication of EP0066385A2 publication Critical patent/EP0066385A2/en
Publication of EP0066385A3 publication Critical patent/EP0066385A3/en
Withdrawn legal-status Critical Current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
    • 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
    • B25B23/15—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers having a mechanism to mark the work when the selected torque is applied to the work

Abstract

A power tool comprising a motor (2); a rotatable output shaft (16) drivable by the motor and adapted to carry a tool (20); means (30) for generating a first electrical signal representing the torque applied to the output shaft; means (40, 41) for generating a second electrical signal representing the angular rotation of the output shaft; and means (100) for processing the signals whilst the tool is in operation to monitor the angle (ϑ₁ - ϑ₂) through which the drive shaft rotates whilst the applied torque rises from a predetermined threshold value (T₁) to its greatest value (T₂) and for generating an indicator signal if the said angle (ϑ₁ - ϑ₂) and the greatest value (T₂) both lie between respective predeter­ mined maximum and minimum values (ϑ₃, ϑ₄, T₃, T₄), and for storing, in order, a predetermined number of values of the signals read at periodic intervals, and means (110) for displaying the stored values.
EP82302411A 1981-05-18 1982-05-12 Power tool Withdrawn EP0066385A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8115173 1981-05-18
GB8115173A GB2098740A (en) 1981-05-18 1981-05-18 Monitoring threaded joint tightening

Publications (2)

Publication Number Publication Date
EP0066385A2 EP0066385A2 (en) 1982-12-08
EP0066385A3 true EP0066385A3 (en) 1984-01-18

Family

ID=10521876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82302411A Withdrawn EP0066385A3 (en) 1981-05-18 1982-05-12 Power tool

Country Status (2)

Country Link
EP (1) EP0066385A3 (en)
GB (1) GB2098740A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0137738A1 (en) * 1983-09-12 1985-04-17 Crane Electronics Limited Torque transducing attachments for air-driven impact tools
GB2195569B (en) * 1986-10-01 1990-04-04 Desoutter Ltd Power tools
EP0309627B1 (en) * 1987-09-30 1993-06-16 International Business Machines Corporation Apparatus for connecting data processing equipment to a telephone network
US5211061A (en) * 1991-07-16 1993-05-18 Goodwin Jerry J Bolt clamping force sensor and clamping force validation method
GB9401332D0 (en) * 1994-01-25 1994-03-23 Dawood Andrew J S An apparatus for testing the passive fit of screw retained structures
SE9604717L (en) 1996-12-20 1998-06-21 Nobel Biocare Ab Surgery instruments and arrangements with such surgical instruments
US7721631B2 (en) * 2007-11-05 2010-05-25 The Boeing Company Combined wrench and marking system
US20180169844A1 (en) * 2016-12-16 2018-06-21 General Electric Company Fastener labeling device and method
CH716121A1 (en) * 2019-04-26 2020-10-30 Ciposa Sa Device and method of screwing.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962910A (en) * 1973-08-20 1976-06-15 Ingersoll-Rand Company Method and apparatus for fastener tension inspection
US4091451A (en) * 1977-04-26 1978-05-23 Weatherford/Lamb, Inc. Method of and apparatus for making up a threaded connection
US4104780A (en) * 1976-12-29 1978-08-08 Sps Technologies, Inc. Method and system for tightening joint assembly
FR2405476A1 (en) * 1977-10-07 1979-05-04 Atlas Copco Ab METHOD AND EQUIPMENT FOR VERIFYING THE TIGHTENING OF SCREWED JOINTS AND ENSURING SAFETY
GB2033088A (en) * 1978-09-12 1980-05-14 Baker Int Corp Method and apparatus for making screw-threaded joints
US4233721A (en) * 1979-04-19 1980-11-18 Rockwell International Corporation Tension control of fasteners

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962910A (en) * 1973-08-20 1976-06-15 Ingersoll-Rand Company Method and apparatus for fastener tension inspection
US4104780A (en) * 1976-12-29 1978-08-08 Sps Technologies, Inc. Method and system for tightening joint assembly
US4091451A (en) * 1977-04-26 1978-05-23 Weatherford/Lamb, Inc. Method of and apparatus for making up a threaded connection
FR2405476A1 (en) * 1977-10-07 1979-05-04 Atlas Copco Ab METHOD AND EQUIPMENT FOR VERIFYING THE TIGHTENING OF SCREWED JOINTS AND ENSURING SAFETY
GB2033088A (en) * 1978-09-12 1980-05-14 Baker Int Corp Method and apparatus for making screw-threaded joints
US4233721A (en) * 1979-04-19 1980-11-18 Rockwell International Corporation Tension control of fasteners

Also Published As

Publication number Publication date
GB2098740A (en) 1982-11-24
EP0066385A2 (en) 1982-12-08

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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

Designated state(s): DE FR GB

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19840105

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: 19850702

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ADAMS, SAMUEL JAMES

Inventor name: HANCOCKS, JOHN PETER