Patent ID: 7257824

Claim:
A worm mechanism for a disk player, which is used to transmit a rotary movement generated in a rotary driving source to at least one driving mechanism, said worm mechanism comprising: a worm gear securely connected to a rotary shaft of said rotary driving source; a worm wheel coupled to said worm gear and further connected to said at least one driving mechanism; and a radial stopper, wherein said worm gear comprises: a boss securely connected to said rotary shaft; a screw shaft; and a connection portion coaxially formed between and integral with said boss and said screw shaft, wherein said radial stopper is disposed adjacent an end of said screw shaft opposite said boss, on the side of said screw shaft opposite said worm wheel, and spaced from said screw shaft with a predetermined gap therebetween, and wherein said connection portion has an annular groove in its outer surface, said annular groove forming an axial section having an effective cross section which is smaller than the cross section of said screw shaft.