Optical disc driving apparatus

Details Optical disc driving apparatus Optical disc driving apparatus

2005-11-22

2005-11-22

Watko, Julie Anne (Department: 2653)

Dynamic optical information storage or retrieval

Particular cabinet structure for optical media

Capable of only accepting unprotected insertable single...

Reexamination Certificate

active

06968560

ABSTRACT:
Herein disclosed is an optical disc driving apparatus adapted to selectively drive two kinds of optical discs different in diameter from each other to reproduce information recorded in the optical disc while reading out information in the optical disc. The optical disc driving apparatus comprises: a housing formed with a loading slot having the optical disc pass therethrough; a turntable for retaining the optical disc and, the turntable being supported by the housing and having a center axis, the turntable being driven to rotate around the center axis with the optical disc and being retained by the turntable to reproduce information recorded in the optical disc while reading out information in the optical disc; a guide plate positioned within the housing in the vicinity of the loading slot and supported by the housing, the guide plate having an inner surface contactable with the optical disc to guide the optical disc toward the turntable until the optical disc is retained by the turntable after being partly passed through the loading slot; a rotation shaft having a center axis and supported by the housing with the center axis being in parallel relationship with the inner surface of the guide plate and with the inner surface of the guide plate extending toward the turntable, the rotation shaft having three different longitudinal portions including first and second side portions axially spaced apart from each other, and a spacer portion intervening between the first and second side portions, the first and second side portions being tapered toward the spacer portion; and driving means for driving the rotation shaft to have the rotation shaft rotate around the center axis to ensure that the optical disc is conveyed toward the turntable by the rotation shaft while the optical disc is being guided by the guide plate.

REFERENCES:
patent: 5022023 (1991-06-01), Toyoguchi
patent: 6033522 (2000-03-01), Iwata et al.
patent: 01-091361 (1989-04-01), None

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