Patent ID: 6993998
Filing Date: 2006-02-07
Classification: B25B,B25G,Y10T

Abstract:
1. A wrench comprising: a tool head including a chamber formed in a rear portion thereof, and a plurality of teeth formed therein, and including a driving mechanism provided within the tool head for engaging with and for driving fasteners and tool members, a handle including a shaft extended from a first end thereof, and rotatably engaged into said chamber of said tool head, and including a channel laterally formed in said shaft to define two arms, a stem rotatably secured to said first end thereof, and rotatably engaged into said channel of said shaft, and including a first actuator extended therefrom, and including a knob attached to said stem and located outside said handle, for rotating said and actuating said stem with said knob, and a follower slidably received in said channel of said shaft, and including at least one tooth provided thereon, for engaging with said teeth of said tool head, and for selectively locking said handle to said tool head at selected angular position, said follower including a space formed therein and defined by an inner peripheral surface, for engaging with said first actuator of said stem, and said first actuator of said stem being forced to engage with said inner peripheral surface of said follower, and to force to said at least one tooth of said follower to engage with said teeth of said tool head, and thus to solidly lock said handle to said tool head at the selected angular position when said stem is rotated relative to said shaft of said handle with said knob, and said at least one tooth of said follower being disengaged from said teeth of said tool head when said stem is further rotated relative to said shaft of said handle to disengage said first actuator of said stem from said inner peripheral surface of said follower.