Mechanism for controlling torque wrench power circuit opening/closing has control switch pivotably connected to housing; when housing enclosed/held by user's hand, hand also encloses/holds switch, can operate it to open/close power circuit

摘要

The arrangement has a control switch for opening/closing the power circuit mounted on a main housing and electrically connected to a circuit for feeding drive current so that the circuit for opening/closing the power circuit can be operated mechanically and a control switch pivotably connected to the main housing and arranged so that when the housing is enclosed an d held by the user's hand the hand also encloses and holds the switch and can operate it to open/close the power circuit.