Electronic torque wrench with tactile indication

Details Electronic torque wrench with tactile indication Electronic torque wrench with tactile indication

B - Operations, Transporting

25

B

81/24, 342/43

B25B 23/147 (2006.01) B25B 23/142 (2006.01)

Patent

CA 2023106

Abstract of the Disclosure An electronic torque wrench has a hollow handle portion in which are disposed a DC motor mechanically coupled to the handle portion with a mass eccentrically mounted on its shaft a control circuit for the motor and a battery for powering the motor and the control circuit. A strain sensor on the wrench produces an output signal when the torque applied to a workpiece equals or exceeds a predetermined torque level for causing the control circuit to actuate the motor to vibrate the handle portion and provide a tactile indication to the user.

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