| 摘要 |
A wrench comprising a wrench head with a stud at one end, a handle, including a handle end with a second stud at one end and an intermediate handle having yokes at opposed ends. A first yoke is pivotally engaged with the wrench head stud and a second yoke is pivotally engaged with the handle end stud. A plurality of paired detent surfaces are arranged over end portions of the yokes and cooperates with a detent ring carried by the handle end. The intermediate handle includes a longitudinal bore and a transverse bore which passes through the longitudinal bore. A positioning member, movable between a locking position and a non-locking position, is carried in the transverse bore. An engaging member, movable between an engaged position and a disengaged position, is carried in the longitudinal bore. The positioning member is positionable to positively lock the engaging member with an associated stud and to allow the engaging member to become disengaged from the stud.
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