Disc chucking structure and optical disc drive including the same

摘要

Provided is a disc clamping structure, a spindle structure, and an optical disc drive having the disc clamping structure. The disc clamping structure includes a chucking spring comprising a pressing portion pressing an upper surface of the clamper, and elastic portions surrounding the pressing portion and providing an elastic force toward the clamper. The disc clamping structure does not require a magnetic thrust as does the conventional optical disc drive.

主权项

1. A disc clamping structure comprising:
a spindle on which a disc is mounted, the spindle having a center hole; a clamper configured to fix the disc to the spindle, the clamper comprising a protruding rotation support formed at the center of an upper surface of the clamper and integrated with the clamper and a centering pin formed at a lower surface of the clamper inserted into the center hole of the spindle; and a chucking spring comprising a pressing portion configured to press on the protruding rotation support of the clamper, and elastic spring portions surrounding the pressing portion configured to provide an elastic force toward the clamper, wherein the clamper is a single unitary structure, and the chucking spring comprises an edge section with a non-uniform width, the edge section comprises sections of uniform width spaced apart from one another, and the sections of uniform width are separated from one another by pairs of protruding rectangular tabs spaced apart from one another and disposed in between indentations.