EP0411670A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Disk cartridge
Assignee: Panasonic Holdings Corp
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Filing: 1990-08-04
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Granted: —
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Expires: 2010-08-04
Abstract
Abstract A disk cartridge includes a rectangular flat housing (1) defined by top and bottom half housings (2, 3). An optical disk (4) is rotatably provided in the rectangular flat housing (1). The bottom half housing (2) has a motor opening (7) formed approximately at the center thereof so as to have an access to a center of the optical disk (4), and a head opening (8) of elongated configuration formed in a space between the motor opening (7) and one of four corners of the rectangular flat housing (1) so as to have an access to the optical disk (4) along a radial direction thereof. A shutter member (10) is provided which has a covering portion which extends partly over outer surface of the bottom half housing (2) and a holding portion (13a, 13b) slidably engaged on a first side of the rectangular flat housing (1). The shutter member (10) is arranged to move between a close position in which the covering portion (11) covers the motor and head openings (7, 8), and an open position in which the covering portion (11) uncovers the motor and head openings (7, 8).
Inventors
- 👤 Yoshikazu Goto
- 👤 Satoshi Kikuya
- 👤 Benichi Miyazaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 00:34
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/03; G11B17/00; G11B17/02; G11B17/04; G11B17/041; G11B23/032; G11B23/0321
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
187 words
A disk cartridge comprising: a rectangular flat housing (1) having first and second flat walls (2, 3); a disk shaped recording medium (4) rotatably provided in said rectangular flat housing (1); said first wall (2) having a first opening (7) formed approximately at the center thereof so as to have an access to a center of said recording medium (4), and a second opening (8) of elongated configuration formed in a space between said first opening (7) and one of four corners of said rectangular flat housing (1) so as to have an access to said recording medium (4) along a radial direction thereof; and a shutter member (10) having a covering portion (11) which extends partly over outer surface of said first wall (2) and a holding portion (13a, 13b) slidably engaged on a first side of said rectangular flat housing (1), said shutter member (10) being arranged to move between a close position in which said covering portion (11) covers said first and second openings (7, 8) and an open position in which said covering portion (11) uncovers said first and second openings (7, 8).
Claim 2
Dependent Claim
187 words
A disk cartridge comprising: a rectangular flat housing (1) having first and second flat walls (2, 3); a disk shaped recording medium (4) rotatably provided in said rectangular flat housing (1); said first wall (2) having a first opening (7) formed approximately at the center thereof so as to have an access to a center of said recording medium (4), and a second opening (8) of elongated configuration formed in a space between said first opening (7) and one of four corners of said rectangular flat housing (1) so as to have an access to said recording medium (4) along a radial direction thereof; and a shutter member (10) having a covering portion (11) which extends partly over outer surface of said first wall (2) and a holding portion (13a, 13b) slidably engaged on a first side of said rectangular flat housing (1), said shutter member (10) being arranged to move between a close position in which said covering portion (11) covers said first and second openings (7, 8) and an open position in which said covering portion (11) uncovers said first and second openings (7, 8).
Claim 3
Dependent Claim
26 words
A disk cartridge according to Claim 1, wherein said covering portion (11) is tapered towards a free end which is remote from holding portion (13a, 13b).
Claim 4
Dependent Claim
23 words
A disk cartridge according to Claim 1, wherein said rectangular flat housing (1) is formed with a groove (16) along said first side.
Claim 5
Dependent Claim
16 words
A disk cartridge according to Claim 1, wherein said second opening (8) is a rectangular opening.
Claim 6
Dependent Claim
16 words
A disk cartridge according to Claim 1, wherein said second opening (8) is an arced opening.
Claim 7
Dependent Claim
167 words
A disk cartridge according to Claim 1, wherein said second wall (3) has a third opening (62) formed approximately at the center thereof so as to have an access to a center of said recording medium (4), and a fourth opening (63) of elongated configuration formed in a space between said third opening (7) and one of four corners of said rectangular flat housing (1) so as to have an access to said recording medium (4) along a radial direction thereof; and further comprising a second shutter member (66) having a covering portion which extends partly over outer surface of said second wall (3) and a holding portion slidably engaged on second side opposite to said first side of said rectangular flat housing (1), said second shutter member (66) being arranged to move between a close position in which said covering portion covers said third and fourth openings (62, 63) and an open position in which said covering portion uncovers said third and fourth openings (62, 63).
Claim 8
Dependent Claim
39 words
A disk cartridge according to Claim 6, wherein said second and fourth openings (8, 63) are offset in such a manner that an angle contained between the elongated second and fourth openings (8, 63) is approximately equal to 90°.
Claim 9
Dependent Claim
194 words
A disk cartridge according to Claim 1, wherein said second wall (3) has a third opening (62) formed approximately at the center thereof so as to have an access to a center of said recording medium (4), and a fourth opening (63) of elongated configuration formed in a space between said third opening (7) and said one of four corners of said rectangular flat housing (1) so as to have an access to said recording medium (4) along a radial direction thereof, said second and fourth openings (8, 63) being aligned with each other via said recording medium (4); and further comprising a double shutter member (83) having two covering portions (11, 11,) which extend partly over outer surface of said second wall (3) and partly over outer surface of said first wall (2), respectively, and a holding portion slidably engaged on said first side of said rectangular flat housing (1), said double shutter member (83) being arranged to move between a close position in which said covering portions cover said first, second, third and fourth openings and an open position in which said covering portion uncovers said first, second, third and fourth openings.
References Cited (Backward Citations)
No citation records indexed.
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