TW200607612A - Electronic torque wrench - Google Patents

Electronic torque wrench

Info

Publication number
TW200607612A
TW200607612A TW093125346A TW93125346A TW200607612A TW 200607612 A TW200607612 A TW 200607612A TW 093125346 A TW093125346 A TW 093125346A TW 93125346 A TW93125346 A TW 93125346A TW 200607612 A TW200607612 A TW 200607612A
Authority
TW
Taiwan
Prior art keywords
wall
strain
modulus
elasticity
slot
Prior art date
Application number
TW093125346A
Other languages
Chinese (zh)
Other versions
TWI276516B (en
Inventor
Xuan-Sen Xiao
Da-Jeng Yao
zong-li Li
Han-Tai Fan
Jia-Ru Wu
Original Assignee
Stand Tools Entpr 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 Stand Tools Entpr Co Ltd filed Critical Stand Tools Entpr Co Ltd
Priority to TW93125346A priority Critical patent/TWI276516B/en
Priority to DE200510039682 priority patent/DE102005039682A1/en
Publication of TW200607612A publication Critical patent/TW200607612A/en
Application granted granted Critical
Publication of TWI276516B publication Critical patent/TWI276516B/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
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1425—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by electrical means

Abstract

This invention relates to an electronic torque wrench, which includes a main body having a head part and a handle, a strain-sensor device that is detachably installed in a longitudinal slot on the handle and consists of a strain body and a strain-sensor element, an operation circuit connected to the strain-sensor element, and a display device connected to the operation circuit. The handle has a modulus of elasticity, called the first modulus of elasticity herein. The longitudinal installation slot on the handle comprises an enclosing wall consisting of a front wall, a rear wall, a right wall, and a left wall. The strain body has a front contact end, a rear contact end, and a middle section; and has a modulus of elasticity, which is smaller than the first modulus of elasticity and is called the second modulus of elasticity herein. Both the front contact end and the rear contact end have two side surfaces, and one front-end surface or one rear-end surface respectively. The middle section has a right side surface and a left side surface. The strain-sensing elements are affixed on at least one side surface of the middle section. When the strain-sensing device is installed in the installation slot, the two side surfaces of its front contract end and rear contract end will contact with the right wall and left wall of the slot respectively; while the front-end surface and rear-end surface will not contact with the front wall and rear wall of the slot respectively, i.e. there will be a gap on each end. Moreover, there is a first lateral gap formed between the right (or the left) side surface of the middle section of the strain body and the right (or the left) wall of the slot; and a second lateral gap formed between each strain-sensing element and the right or the left wall of the installation slot respectively.
TW93125346A 2004-08-23 2004-08-23 Electronic torque wrench TWI276516B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW93125346A TWI276516B (en) 2004-08-23 2004-08-23 Electronic torque wrench
DE200510039682 DE102005039682A1 (en) 2004-08-23 2005-08-22 Electrical torque-indicating spanner for engaging and turning workpiece, has display unit which receives output signal from processing circuit and translates output signal into visual presentation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93125346A TWI276516B (en) 2004-08-23 2004-08-23 Electronic torque wrench

Publications (2)

Publication Number Publication Date
TW200607612A true TW200607612A (en) 2006-03-01
TWI276516B TWI276516B (en) 2007-03-21

Family

ID=36011783

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93125346A TWI276516B (en) 2004-08-23 2004-08-23 Electronic torque wrench

Country Status (2)

Country Link
DE (1) DE102005039682A1 (en)
TW (1) TWI276516B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115106969A (en) * 2021-03-18 2022-09-27 赖士豪 Torque wrench

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20080462A1 (en) 2008-03-18 2009-09-19 Atlas Copco Blm Srl "ELECTRONIC DYNAMOMETRIC KEY WITH REPLACEABLE TORQUE SENSORS"
ITMI20090225A1 (en) * 2009-02-19 2010-08-20 Studio A I P S R L SCREWDRIVER FOR MEDICAL APPLICATIONS, IN PARTICULAR FOR ENDOSSEA IMPLANTOLOGY
TWI426002B (en) * 2010-07-30 2014-02-11 Xiamen United Trade Electronic Co Ltd Digital torque wrench structure and the way to grip the force
CN111745576B (en) * 2020-06-08 2022-02-25 芜湖协航测控技术有限公司 Torque wrench with rotatable head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115106969A (en) * 2021-03-18 2022-09-27 赖士豪 Torque wrench
CN115106969B (en) * 2021-03-18 2024-01-19 赖士豪 Torque spanner

Also Published As

Publication number Publication date
DE102005039682A1 (en) 2006-03-30
TWI276516B (en) 2007-03-21

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees