Disk cartridge

Details Disk cartridge Disk cartridge

2007-03-27

2007-03-27

Nguyen, Hoa Thi (Department: 2627)

Dynamic optical information storage or retrieval

Optical storage medium structure

Disk cartridge

Reexamination Certificate

active

10339412

ABSTRACT:
A disk cartridge includes a case accommodating a disk and having a first hole, a cover installed at the case and having a second hole open to an outside of the cover, a shutter installed to be capable of moving with respect to the case disposed under the disk to open/shut the first hole formed on the case, and a plurality of protruding portions provided at the shutter to support a non information area provided at an outer circumferential side of the disk and having inclined surfaces inclined at a predetermined angle. When the shutter is opened, the disk descends along the inclined surfaces. When the shutter is shut, the disk ascends along the inclined surfaces to closely contact a portion of the cover disposed around the second hole of the cover. Thus, since the shutter contacts only a non-information area of the disk, an information area of the disk can be safely kept from being damaged during an operation of opening/shutting the first hole. Also, since an edge portion of the outer circumferential side of the disk closely contacts a sealing member disposed around the second hole of the cover in a state that the shutter is shut, a gap through which dust can intrude is blocked, so that contamination of the recording surface can be reduced.

REFERENCES:
patent: 4692831 (1987-09-01), Suzuki
patent: 4814926 (1989-03-01), Gulbrandsen
patent: 5278717 (1994-01-01), Sasaki et al.
patent: 61-6974 (1986-01-01), None
patent: 4-67486 (1992-03-01), None
patent: 1994-5563 (1994-06-01), None
U.S. Appl. No. 10/367,739, filed Feb. 19, 2003, Yim et al., Samsung Electronics Co., Ltd.
U.S. Appl. No. 10/369,130, filed Feb. 20, 2003, Yim et al., Samsung Electronics Co., Ltd.
Abstract of PCT Application WO 02/56313, published Jul. 18, 2002.

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