Patent ID: 6386946
Filing Date: 2002-05-14
Classification: B24B,G11B

Abstract:
A machine for repairing compact disks, the machine comprising:(a) a casing including a platform and a lateral plate, a power switch, a heat dissipation switch, and a timer supported on the lateral plate, a motor disposed within the casing and having a top rim, and a bearing exposed through the platform and secured to the top rim of the motor; (b) a grinding unit including a base, a sliding seat and a grinding crank, the base being disposed on the platform and including a first tapped hole extending through a top of the base; (c) the sliding seat including a sliding groove formed in a bottom face thereof, a guide hole aligned with the first tapped hole of the base, a snap-retaining groove formed on an end face of the sliding seat, a fixing groove, a first bolt stud extending through the guide hole and the first tapped hole for securing the sliding seat to the base, a swivel knob at an end of the first bolt stud; (d) the grinding crank including a pivotal joint socket at a first end thereof joining the grinding crank to the fixing groove of the sliding seat, a fixing terrace at a second end of the grinding crank, a second tapped hole centered in the fixing terrace, a second bolt stud extending through the second tapped hole, a rotary knob at a first end of the second bolt stud, a threaded portion formed at a journal of the second bolt stud and disposed in an engagement with the second tapped hole, a rotation socket containing a bearing set collared onto a second end of the second bolt stud, a first coupling portion at a bottom end of the rotation socket, a grinding wheel including a grinding cloth and a second coupling portion engaged with the first coupling portion; (e) a compact disk turntable, a pivot pin extending through the bearing on the platform and joining the turntable to the casing for rotation by the motor; and (f) a cooling unit disposed on the platform and including an air spout for cooling a compact disk supported on the turntable during the repairing process.