Apparatus for opening and closing a head opening, and disk...

Details Apparatus for opening and closing a head opening, and disk... Apparatus for opening and closing a head opening, and disk...

2005-03-11

2009-02-03

Davis, David D (Department: 2627)

Dynamic optical information storage or retrieval

Optical storage medium structure

Disk cartridge

Reexamination Certificate

active

07487522

ABSTRACT:
A disk cartridge capable of smoothly opening/closing a head opening without enlarging a second shutter. In a disk cartridge, a disc-shaped disk medium is rotatably housed in a disk housing portion of a case, and a head opening through which a head of a drive device accesses a recording face is formed in the bottom plate of the case. The head opening is closed when an end of a first shutter, which is rotatable coaxially with the disk medium and an end of a second shutter swingable around an axis different from that of the first shutter come into contact with each other. Each of the contact ends of the first and second shutters includes an arc portion having the axis of turn of the second shutter as a center.

REFERENCES:
patent: 2004/0205809 (2004-10-01), Saji et al.
patent: 2004/0210921 (2004-10-01), Shibagaki et al.
patent: 2004/0255319 (2004-12-01), Inoue et al.
patent: 2005/0076356 (2005-04-01), Yamada et al.
patent: 2005/0091677 (2005-04-01), Imai
patent: 2005/0160447 (2005-07-01), Iwaki et al.
patent: 2005/0273801 (2005-12-01), Funawatari et al.
patent: 2002-269944 (2002-09-01), None
patent: 2003-115184 (2003-04-01), None
patent: 2003-242740 (2003-08-01), None
patent: 03/079356 (2003-09-01), None

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