Patent ID: 8136429
Filing Date: 2012-03-20
Classification: B25B

Abstract:
1. A reversible monkey wrench, comprising: a handle, having a connecting end; a head, being formed with a fixed jaw, a sliding rail, a receiving slot and a connecting bore, the sliding rail having a slide surface disposed at its top, the receiving slot communicating with the sliding rail, the connecting bore communicating the receiving slot with a bottom of the head; a joint axle, a first spring, a movable pin and a second spring being disposed between the head and the connecting end, the joint axle being located between the first spring and the movable pin, the head being rotatable with respect to the handle and about the joint axle, the first spring abutting against the head and the connecting end, a top of the movable pin selectively inserting through the connecting bore, the second spring being adapted to urge a bottom of the movable pin to abut against the connecting end, the first spring providing an elastic force bigger than an elastic force provided by the second spring; a slidable jaw, having a sliding rod, the sliding rod being slidably disposed in the sliding rail; an axial rod, stationarily disposed in the receiving slot; a worm gear, having an engaging portion corresponding to the sliding rod, and having an axial bore for the axial rod to insert therethrough, the worm gear being disposed in the receiving slot and being slidable along the axial rod, the movable pin selectively abutting against an abutting end of the worm gear so as to prohibit the worm gear from sliding along the axial rod.