US4381559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc-shaped recording medium reproducing apparatus
Assignee: Victor Company of Japan Ltd
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Filing: 1981-07-24
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Granted: 1983-04-26
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Expires: 2001-07-24
Abstract
Abstract A reproducing apparatus reproduces a disc-shaped recording medium which is accommodated within a case. The reproducing apparatus comprises an inserting opening part through which the case is inserted into the reproducing apparatus, a clamping mechanism for clamping at least one of the disc-shaped recording medium or the lid member, a pickup frame having a reproducing transducer for reproducing the disc-shaped recording medium placed on the turntable, a moving mechanism for moving the pickup frame between a waiting position and a reproducing position, a pair of guide rails provided extending between a position of the inserting opening part and a position at an innermost part of the apparatus, at right and left sides of a moving passage of the case, and allowing a slider for supporting the case to move therealong in response to the inserting and pulling out operation of the case, the guide rail at the side of the pickup frame comprising fixed front and rear guide rail parts respectively fixed at the front end and the rear end of the apparatus in coincidence with a linear line extending in the case inserting direction, and a moving guide rail provided on the pickup frame to move together therewith, and position restricting mechanism for restricting the final position of the moving guide rail part so as to align with the fixed front and rear guide rail parts, when the pickup frame is returned to the waiting position.
Inventors
- 👤 Takashi Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:39
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/04; G11B17/041; G11B17/049; G11B17/022; G11B17/028; G11B17/032; G11B23/00; G11B23/02; G11B23/03; G11B23/0328
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
326 words
A reproducing apparatus for reproducing a disc-shaped recording medium which is accommodated within a case, said case comprising a jacket which has a space for accommodating said disc-shaped recording medium and an opening for allowing said disc-shaped recording medium to go in and out of said jacket, and a lid member inserted through said opening of said jacket for closing said opening of said jacket, said reproducing apparatus comprising: an inserting opening part through which said case is inserted into said reproducing apparatus; a turntable for rotating said disc-shaped recording medium; clamping means for clamping at least one of said disc-shaped recording medium or said lid member, provided at the innermost part on the opposite side from said inserting opening part with respect to said turntable; a pickup frame having a reproducing transducer for reproducing the disc-shaped recording medium placed on said turntable; moving means for moving said pickup frame between a waiting position and a reproducing position with respect to the disc-shaped recording medium; a pair of guide rails provided extending between a position of said inserting opening part and a position at an innermost part of said apparatus, at right and left sides of a moving passage of said case, and allowing slider means for supporting said case to move therealong in response to the inserting and pulling out operation of said case, among the pair of guide rail, the guide rail at the side of said pickup frame comprising fixed front and rear guide rail parts respectively fixed at the front end and the rear end of said apparatus in coincidence with a linear line extending in the case inserting direction, and a moving guide rail provided on said pickup frame to move together therewith; and position restricting means for restricting the final position of said moving guide rail part so as to align with said fixed front and rear guide rail parts, when said pickup frame is returned to the waiting position.
Claim 2
Dependent Claim
326 words
A reproducing apparatus for reproducing a disc-shaped recording medium which is accommodated within a case, said case comprising a jacket which has a space for accommodating said disc-shaped recording medium and an opening for allowing said disc-shaped recording medium to go in and out of said jacket, and a lid member inserted through said opening of said jacket for closing said opening of said jacket, said reproducing apparatus comprising: an inserting opening part through which said case is inserted into said reproducing apparatus; a turntable for rotating said disc-shaped recording medium; clamping means for clamping at least one of said disc-shaped recording medium or said lid member, provided at the innermost part on the opposite side from said inserting opening part with respect to said turntable; a pickup frame having a reproducing transducer for reproducing the disc-shaped recording medium placed on said turntable; moving means for moving said pickup frame between a waiting position and a reproducing position with respect to the disc-shaped recording medium; a pair of guide rails provided extending between a position of said inserting opening part and a position at an innermost part of said apparatus, at right and left sides of a moving passage of said case, and allowing slider means for supporting said case to move therealong in response to the inserting and pulling out operation of said case, among the pair of guide rail, the guide rail at the side of said pickup frame comprising fixed front and rear guide rail parts respectively fixed at the front end and the rear end of said apparatus in coincidence with a linear line extending in the case inserting direction, and a moving guide rail provided on said pickup frame to move together therewith; and position restricting means for restricting the final position of said moving guide rail part so as to align with said fixed front and rear guide rail parts, when said pickup frame is returned to the waiting position.
Claim 3
Dependent Claim
127 words
A reproducing apparatus as claimed in claim 1 in which said position restricting means comprises steps formed at ends of said front and rear fixed guide rail parts and adapted to engage the opposite end of said moving guide rail when said pickup frame returns to the waiting position, a spring member for urging said moving guide rail part toward said pickup frame, and detection means for detecting said pickup frame when the pickup frame is moved by said moving means over a position where the moving guide rail part strikes against the steps of said front and rear fixed guide rail member and reaches a position where the spring member undergoes resilient deformation, and for stopping operation of said moving means responsive to the above detection.
Claim 4
Dependent Claim
48 words
A reproducing apparatus as claimed in claim 1 in which said moving guide rail part has at opposite ends bevel faces, and said fixed guide rails have at ends confronting said moving guide rail bevel faces, said bevel faces sloping in the moving direction of said slider means.
Claim 5
Dependent Claim
44 words
A reproducing apparatus as claimed in claim 2 in which said spring member is a coil spring fitted around a screw member and provided below a head of said screw member, said screw member supporting said moving guide rail part on said pickup frame.
Claim 6
Dependent Claim
37 words
A reproducing apparatus as claimed in claim 1 in which said moving means has worm gear mechanism which serves as locking means for restricting free moving of said pickup frame after said moving means stopps its operation.
Claim 7
Dependent Claim
54 words
A reproducing apparatus as claimed in claim 1 in which said moving means has a wire belt strung to run in the moving direction of said pickup frame, said wire belt is fixed to said pickup frame in the vicinity of said moving guide rail part along the height direction of said pickup frame.
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) | 1986-04-25 | 1986-10-25 | 1987-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-25 | 1990-10-25 | 1991-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-25 | 1994-10-25 | 1995-04-26 | $7700.00 | Window Closed / Lapsed |