US 7,322,037 B2 | ||
Structure of optical disc cartridge | ||
Bi Seok Choi, Seoul (Korea, Republic of) | ||
Assigned to LG Electronics Inc., Seoul (Korea, Republic of) | ||
Filed on Aug. 03, 2004, as Appl. No. 10/909,371. | ||
Application 10/909371 is a continuation of application No. 09/405171, filed on Sep. 24, 1999, granted, now 6,785,900. | ||
Claims priority of application No. 1999-2132 (KR), filed on Jan. 23, 1999. | ||
Prior Publication US 2005/0010936 A1, Jan. 13, 2005 | ||
Int. Cl. G11B 23/03 (2006.01) |
U.S. Cl. 720—733 | 8 Claims |
1. A disc cartridge comprising:
a casing for receiving a disc therein;
a disc holder separably disposable in the casing, having tension arms for elastically holding the disc, and guiding the disc
into or out of the casing; and
a protruding supporting member being provided within the casing and protruding to a predetermined height from an inner surface
of the casing for contacting with and supporting a non-recording region of the disc, the height being equal to or greater
than a value Hopt=G+D+A, wherein G is vertical deflection of the disc due to gravity, D is a vertical deflection of the tension arms, and A
is a gap which must be minimally obtained between the disc and flanges of the tension arms wherein G is 0.2 mm, D is 0.05
mm, and A is 0.1+/−0.05 mm;
wherein the height of the protruding supporting member is sufficient to prevent any interference between the disc and tension
arms.
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