Cleaning disk for optical pickup head of optical disk drive

Abstract

A cleaning disk for an optical pickup head of an optical disk drive has a disk body with a first surface and a second surface. The disk body uses at least one two-step hole portion to mount at least one brush bundle, wherein the two-step hole includes an embedded fine hole and an expansion hole. The brush bundle has a root portion and an end portion, wherein the root portion is fixed in the embedded fine hole, and the end portion protrudes towards the facing direction of the second surface through the expansion hole. When the brush bundle cleans the optical pickup head, the inner edge of the embedded fine hole on the first surface is used as a pivot point to bend the brush bundle into the expansion hole, thus reducing the resistance and wiping damage on the optical pickup head and the planar shifting of the cleaning disk.

1 . A cleaning disk for cleaning an optical pickup head of an optical disk drive, wherein the cleaning disk has a disk body which has the same size with a standard optical disk, and the disk body has a central mounting hole, and the disk body has a first surface and a second surface opposite to the first surface, and the cleaning disk is characterized in that:
 the disk body uses at least one two-step hole portion to mount at least one brush bundle;   the two-step hole comprises an embedded fine hole and an expansion hole concentric with the embedded fine hole, wherein the embedded file hole is formed on the first surface of the disk body, and the expansion hole is formed on the second surface of the disk body; and   the brush bundle is formed by clustering a plurality of brushes and has a root portion and an end portion opposite to the root portion, and the root portion is fixed in the embedded fine hole, and the end portion protrudes towards the facing direction of the second surface of the disk body through the expansion hole.   
     
     
         2 . The cleaning disk as claimed in  claim 1 , wherein the expansion hole is substantially formed in a cone shape. 
     
     
         3 . The cleaning disk as claimed in  claim 1 , wherein the expansion hole is substantially formed in a cylinder shape. 
     
     
         4 . The cleaning disk as claimed in  claim 1 , wherein the at least one brush bundles are plural and are disposed at intervals, and the brush bundles are at different radial distances from the central mounting hole. 
     
     
         5 . The cleaning disk as claimed in  claim 1 , wherein the first surface is a signal surface of the cleaning disk on which a print surface is disposed, and the second surface is a reading surface of the cleaning disk.