Self-tightening chuck with a radial lock

Abstract

A drill chuck including a spindle portion with a pusher bore, a spindle bore, an annular array of teeth, and an annular groove defined by the outer surface of the first end. A body is rotatably disposed about the spindle portion and includes a central bore, an annular groove defined by the central bore, and a pawl pivotably mounted to the body for selectively engaging the annular array of teeth. A jaw pusher includes a threaded post and a head, the threaded post being disposed in the pusher bore and configured for axial motion. A jaw guide is disposed on the first end of the body and includes a plurality of jaw slots. A plurality of jaws is slidably received in the corresponding jaw slots and slidably received by the head of the jaw pusher. A plurality of bearing balls is received between the annular groove of the spindle portion and the annular groove of the body. The annular groove of the spindle portion and the annular groove of the body form a continuous pair of bearing races for the plurality of bearing balls.

Dependencies are inferred from the claim text.