Control mechanism for selective engagement and disengagement of a motor device

In a tow truck having a motor drive which drives a winch having a towing cable thereon, said motor drive having a control arm for controlling selective engagement and disengagement of said motor drive, ana said control arm being pivotally mounted for pivotal movement in a plane to a first engaging position and to a second disengaging position, the improvement being in a control mechanism for the selective engagement and disengagement of said motor drive, said mechanism including a elongated handle, said handle having a free end extending to a side of said truck whereby said free end may be grasped by a user standing at the side of said truck, said handle having an opposite end pivotally connected to said control arm, said handle being selectively slidably movably mounted in a longitudinal direction in said plane of control arm movement to a first position and a second position corresponding to the engaging and disengaging positions of said control arm, lock means for selectively holding said handle in each of said two positions, said lock means including at least one abutment, said one abutment having a slot, said handle having a projection dimensioned to pass through said slot and be disposed on a side of said one abutment remote from the control arm, said handle being movably mounted through said slot for selective contact of said projection with said remote side of said one abutment to lock the control arm in one of its positions, and resilient means for selectively maintaining said handle in at least one of its positions.