Disc cartridge having a shutter that includes a convex...

Details Disc cartridge having a shutter that includes a convex... Disc cartridge having a shutter that includes a convex...

2006-01-03

2006-01-03

Cao, Allen (Department: 2652)

Dynamic optical information storage or retrieval

Optical storage medium structure

Disk cartridge

C360S133000, C369S291100

Reexamination Certificate

active

06983477

ABSTRACT:
A disc cartridge according to the present invention includes a cartridge body and a shutter. The cartridge body includes a disc storage portion, a chucking opening and a head opening. The disc storage portion stores a disc, having first and second sides, therein so that the disc is rotatable in the disc storage portion. The shutter is supported to, and movable with respect to, the cartridge body between the disc and the bottom of the disc storage portion so as to expose or cover the chucking opening and the head opening. The shutter also includes a convex portion that is provided for the shutter so as to protrude into a center hole of the disc while the shutter covers the chucking opening and the head opening. When the shutter is going to be opened, the convex portion lifts the disc in a thickness direction of the cartridge while contacting with the second side of the disc.

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