Patent ID: 8550471

Claim:
A tool bit holder for receiving a tool bit, with the tool bit including an engaging recess, comprising: a sleeve including a hole extending therethrough, with the hole delimited by an inner periphery thereof, the sleeve further including a first notch, a second notch, and an abutting section extending on the inner periphery, with the abutting section disposed between the first and second notches; a hub receiving the sleeve, with the sleeve moveably mounted on an outer periphery of the hub, the hub further including a bore extending therein, a cavity defined in the outer periphery thereof, a passage extending from the bore to the cavity to enable the bore and the cavity to communicate with each other, and a guiding edge defined on the cavity; and a locking mechanism disposed and retained in the cavity by the sleeve, the locking mechanism including a control member, a first resilient member, and a detent, with the control member moveably disposed in the cavity and biased by the resilient member, with the detent carried by the control member, with the abutting section movable relative to the hub and the control member and abutting against the detent and causing the detent to partially expose in the bore; and wherein when in use of the tool bit holder to engage with the tool bit, the detent is urged by the tool bit and the control member is caused to move and carry the detent in a first direction, and the detent is disengaged from the abutting section and urged into the first notch of the sleeve thereafter, and the control member is biased in a second direction and urges the detent to engage in the engaging recess of the tool bit thereafter for securing the tool bit; and wherein, in order to release the tool bit, the sleeve is moved with respect to the hub, and the detent is disengaged from the abutting section and urged into the second notch of the sleeve thereafter.