Patent US4980883A successfully refreshed from Google Patents.
US4980883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk tray
Assignee: Victor Company of Japan Ltd
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Filing: 1989-10-26
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Granted: 1990-12-25
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Expires: 2009-10-26
Abstract
Abstract A tray for supporting a recording disk in a disk cassette has a pair of diametrically opposed pivoted levers with operative ends which engage opposite sides of the disk to hold it in the tray. The other end of each lever covers a pin insertion hole in the disk. When respective pins of a playback device are inserted through the insertion holes, the pins push against the levers and cause them to release the disk.
Inventors
- 👤 Kouichi Mutou
- 👤 Masae Murata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:53
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/03; G11B23/0328; G11B17/00; G11B17/22; G11B23/032; G11B23/0321
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
235 words
A disk tray for holding a disk therein, comprising: a substantially planar tray plate having a disk housing portion for housing the disk, said tray plate being provided with pin insertion holes outwardly of the disk housing portion into which guide pins of a playback apparatus for positioning the disk tray therein can be inserted in a direction substantially perpendicular to the plane of the plate; a first disk supporting means provided on the tray plate for supporting the disk on the disk tray in the plane of the plate, a second disk supporting means for releasably supporting the disk on the disk tray in a direction perpendicular to the plane of the plate, the second means, comprising a pair of elongated members each of which is pivoted to the tray plate so as to swing substantially parallel to the plane of the plate and has a long arm portion and a short arm portion with respect to a pivoted position of the elongated member, said short arm portion of each of the pair of elongated members at least partially covering a respective one of said pin insertion holes when a long arm portion of the respective elongated member supports the disk in said direction, and the short arm portion being movable by a guide pin when the guide pin is inserted in the respective hole to release the long arm portion from the disk.
Claim 2
Dependent Claim
235 words
A disk tray for holding a disk therein, comprising: a substantially planar tray plate having a disk housing portion for housing the disk, said tray plate being provided with pin insertion holes outwardly of the disk housing portion into which guide pins of a playback apparatus for positioning the disk tray therein can be inserted in a direction substantially perpendicular to the plane of the plate; a first disk supporting means provided on the tray plate for supporting the disk on the disk tray in the plane of the plate, a second disk supporting means for releasably supporting the disk on the disk tray in a direction perpendicular to the plane of the plate, the second means, comprising a pair of elongated members each of which is pivoted to the tray plate so as to swing substantially parallel to the plane of the plate and has a long arm portion and a short arm portion with respect to a pivoted position of the elongated member, said short arm portion of each of the pair of elongated members at least partially covering a respective one of said pin insertion holes when a long arm portion of the respective elongated member supports the disk in said direction, and the short arm portion being movable by a guide pin when the guide pin is inserted in the respective hole to release the long arm portion from the disk.
Claim 3
Dependent Claim
63 words
The disk tray of claim 1, wherein said first disk supporting means is a recess formed at said disk housing portion, and said long arm portion of each elongated member has hook means extending toward a center of said recess so that said disk is supported in the recess horizontally and vertically when the disk tray is not loaded in the playback apparatus.
Claim 4
Dependent Claim
28 words
The disk tray of claim 1, wherein said first supporting means comprises a plurality of projections provided on the tray plate encircling and defining said disk housing portion.
Claim 5
Dependent Claim
25 words
The disk tray of claim 1, wherein said pair of elongated members is biased toward a center of the disk housing portion by elastic means.
Claim 6
Dependent Claim
31 words
The disk tray of claim 4, wherein said elastic means is a spring member formed integrally with each of the elongated members, and extending along said each of the elongated members.
Claim 7
Dependent Claim
32 words
The disk tray of claim 4, wherein said elastic means is a torsion spring coupled between each of said short arm portion of the pair of elongated members and the tray plate.
Claim 8
Dependent Claim
28 words
The disk tray of claim 5, wherein said elastic means is a thin elongated portion formed as a part of said long arm portion of the elongated member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-24 | 1994-06-25 | 1994-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-24 | 1998-06-25 | 1998-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-24 | 2002-06-25 | 2002-12-25 | $7700.00 | Window Closed / Lapsed |