Patent ID: 8876121

Claim:
A quick-release bit adapter comprising: a body including a driving section on an end thereof and a connecting section on another end thereof, with the connecting section spaced from the driving section along a longitudinal axis, with the driving section of the body adapted to engage with a bit, with the connecting section of the body adapted to be rotated to drive the bit to rotate, with the body including a non-circular driving hole extending from the driving section towards the connecting section of the body along the longitudinal axis, with the driving hole adapted to removably receive the bit, with the driving section of the body further including an outer periphery having a sliding hole extending at a non-parallel angle to the longitudinal axis and in communication with the driving hole, with the outer periphery of the driving section of the body including an outer diameter, with the outer periphery of the driving section of the body including two recessed portions; a resilient positioning member mounted in the driving section of the body, with the resilient positioning member having at least one positioning section adapted to be releasably engaged in at least one of a plurality of cuts in an outer periphery of the bit when the bit is in an engagement position received in the driving hole; and a releasing device mounted in the sliding hole and slideable between first and second positions along the longitudinal axis, with the releasing device including a control member extending through the sliding hole of the body, with the control member having two control portions respectively formed on two ends of the control member and located outside of the sliding hole, with the two control portions adapted to be manually operated to slide the control member in the sliding hole of the body between the first and second positions, with the two recessed portions receiving the two control portions of the control member with the two control portions of the control member not extending beyond the outer diameter of the outer periphery of the driving section of the body; wherein when the releasing device is in the first position, said at least one positioning section of the resilient positioning member is engaged in at least one cut of the bit in the engagement position, retaining the bit in the engagement position in the driving hole of the body, and wherein when the releasing device is moved from the first position to the second position, the bit is pushed outwards away from the driving hole of the body to a disengagement position to disengage said at least one positioning section of the resilient positioning device from the plurality of cuts of the bit, allowing easy removal of the bit from the driving hole of the body.