Patent ID: 6056298
Filing Date: 2000-05-02
Classification: B23B,Y10S,Y10T

Abstract:
A device for enabling a chuck assembly of a reversible power tool driven by a rotary drive shaft to be opened and closed so that implements adapted to be held by the chuck assembly can be secured to and removed from the chuck assembly by locking an outer chuck in a stationary position while manipulating an inner chuck, the drive shaft extending through a wall of a housing of the power tool, the housing including a motor for the drive shaft where the motor is connected to the inner chuck; the improvement comprising a chuck locking device, a sleeve locking device for locking said outer chuck stationary; said sleeve locking device having a cylindrical body with inner and outer surfaces said inner surface having a plurality of teeth equally spaced on said inner surface; said chuck assembly outer chuck having a cylindrical body and inner and outer surfaces, where said outer surface has a plurality of equally spaced grooves, where said grooves align with said teeth of said sleeve locking device, and where said sleeve locking device is moved over said outer chuck to mate said sleeve locking device inner teeth with said grooves of said outer chuck.