US5260922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk magazine remover system
Assignee: Sony Corp
•
Filing: 1991-12-09
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Granted: 1993-11-09
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Expires: 2011-12-09
Abstract
Abstract A disk magazine remover system includes an ejector lever (7) rotatably supported to a chassis (3), a first elastic member (8) arranged between the chassis (3) and the ejector lever (7) for biasing the ejector lever (7) in a magazine ejecting direction, a limiter (13) rotatably supported to the chassis (3), a second elastic member (14) arranged between the ejector lever (7) and the limiter (13) for biasing the ejector lever (7) in the magazine ejecting direction, and a lock releasing mechanism (20) for releasing the magazine locked by a lock lever (6) and including a motor (21) and a cam gear (27) rotated thereby.
Inventors
- 👤 Hiroyuki Chigasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:44
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/08; G11B17/10; G11B17/02; G11B17/04; G11B17/05; G11B17/22
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
219 words
A disk magazine remover system adapted to receive a magazine, the magazine having a recess on a bottom thereof, comprising: a chassis on which the magazine is slidably set; a lock lever arranged for locking the magazine onto said chassis, said lock lever having a protrusion which is engaged with the recess of the magazine when the magazine is locked onto said chassis; an ejector lever rotatably supported to said chassis, said ejector lever including an engagement portion which protrudes from said chassis to press the magazine off of said chassis; a first elastic member arranged between said chassis and said ejector lever for biasing said ejector lever in a direction for ejecting the magazine from said chassis; a limiter rotatably supported to said chassis, said ejector lever and said limiter having a common axis of rotation, and said limiter including a lug element in contact with an edge portion of said ejector lever, so that movement of said ejector lever in a direction opposite to said ejecting direction causes movement of said limiter; a second elastic member arranged between said ejector lever and said limiter for biasing said ejector lever in said ejecting direction to eject the magazine from said chassis; and a lock releasing mechanism arranged on said chassis for releasing said lock lever from the magazine.
Claim 2
Dependent Claim
219 words
A disk magazine remover system adapted to receive a magazine, the magazine having a recess on a bottom thereof, comprising: a chassis on which the magazine is slidably set; a lock lever arranged for locking the magazine onto said chassis, said lock lever having a protrusion which is engaged with the recess of the magazine when the magazine is locked onto said chassis; an ejector lever rotatably supported to said chassis, said ejector lever including an engagement portion which protrudes from said chassis to press the magazine off of said chassis; a first elastic member arranged between said chassis and said ejector lever for biasing said ejector lever in a direction for ejecting the magazine from said chassis; a limiter rotatably supported to said chassis, said ejector lever and said limiter having a common axis of rotation, and said limiter including a lug element in contact with an edge portion of said ejector lever, so that movement of said ejector lever in a direction opposite to said ejecting direction causes movement of said limiter; a second elastic member arranged between said ejector lever and said limiter for biasing said ejector lever in said ejecting direction to eject the magazine from said chassis; and a lock releasing mechanism arranged on said chassis for releasing said lock lever from the magazine.
Claim 3
Dependent Claim
20 words
A disk magazine remover system as claimed in claim 1, wherein said first elastic member includes a torsion coil spring.
Claim 4
Dependent Claim
20 words
A disk magazine remover system as claimed in claim 1, wherein said second elastic member includes an extension coil spring.
Claim 5
Dependent Claim
79 words
A disk magazine remover system as claimed in claim 1, wherein said lock releasing mechanism includes a motor and a cam gear rotated thereby, said cam gear being formed with a first cam portion for moving said protrusion of said lock lever toward and away from said chassis for engagement and disengagement respectively with the recess of the magazine and a second cam portion for rotating said limiter in said ejecting direction to eject the magazine from said chassis.
Claim 6
Dependent Claim
38 words
A disk magazine remover system as claimed in claim 4, wherein said lock releasing mechanism further includes an intermediate gear between said motor and said cam gear, said intermediate gear driving said cam gear when said motor rotates.
Claim 7
Dependent Claim
28 words
A disk magazine remover system as claimed in claim 5, wherein said intermediate gear includes a swing gear for selectively engaging said intermediate gear with said cam gear.
Claim 8
Dependent Claim
42 words
A disk magazine remover system as claimed in claim 4, wherein said first cam portion is disposed on one side of said cam gear, and said second cam portion is disposed on another side of said cam gear opposite said one side.
References Cited (Backward Citations)
US4685010A
Cited
JPS6290453A
Cited
US4737945A
Cited
US4864551A
Cited
US5025339A
Cited
US5021904A
Cited
US5014258A
Cited
US4949324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-11-08 | 1997-05-10 | 1997-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-08 | 2001-05-10 | 2001-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-08 | 2005-05-10 | 2005-11-09 | $7700.00 | Window Closed / Lapsed |