Mitsumi Electric Company Ltd.

Manabu Ogasawara

Yoshihiro Okano

An optical disk clamper holding mechanism that holds an optical disk clamper includes a surrounding unit, a flange unit, a rib that touches, when the optical disk clamper moves in the direction of the flange opening, a rim portion of an upper flange unit of the optical disk clamper, the rib protruding inwardly at a position opposite to the flange opening. Since the range of clearance in which the optical disk clamper can move in the optical disk clamper holding mechanism is restricted, the optical disk clamper always fits in the turntable normally and consequently, always clamps the optical disk normally.

Holding mechanism of an optical disk clamper and an optical disk drive using the same

A peripheral apparatus comprises lower and upper resin casings made from resin by an injection molding and engaged to each other so as to upwardly and downwardly cover an electrical unit. The lower resin casing is provided with a primary dent portion/a primary projecting portion formed at a primary location in the depth direction of the peripheral apparatus. The primary dent potion/the primary projecting portion dents/projects into/from a primary parting-line of the lower resin casing for the injection molding. The upper resin casing is provided with a secondary projecting portion/a secondary dent potion formed at a secondary location corresponding to the primary location. The secondary projecting portion/the secondary dent portion projects/dents from/into a secondary parting-line of the upper resin casing for the injection molding. The lower and the upper resin casings are held by each other so as to match with each other in the depth direction by engaging the primary dent portion/the primary projecting portion and the secondary projecting portion/the secondary dent portion.

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Chofu, Japan

Manabu Ogasawara