US5036509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide mechanism for disc reproducing apparatus
Assignee: Pioneer Corp
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Filing: 1990-03-13
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Granted: 1991-07-30
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Expires: 2010-03-13
Abstract
Abstract A disc reproducing apparatus is disclosed in which a disc is delivered from a disc inserting opening to a predetermined position within a player, a clamper arm that extends over a turntable for clamping the disc is operated to fix the disc on the turntable, and then the turntable is rotated to reproduce information recorded in the disc. A disc guide plate is pivotally mounted to the clamper arm such that the disc guide plate engages and disengages the clamper arm. A disc guiding recess into which a small-diameter disc can be fitted is provided to the disc guide plate. When the small-diameter disc is delivered, the small-diameter disc is fitted into the disc guiding recess to be aligned with a clamp position, and when a large-diameter disc is delivered, the large-diameter disc pushes the disc guide plate away to be aligned with the clamp position on the turntable.
Inventors
- 👤 Kazuo Kobayashi
- 👤 Yoshinori Yamada
- 👤 Kiyoshi Morikawa
- 👤 Masakazu Kurumada
- 👤 Masanori Sugihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:43
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/04; G11B17/05; G11B17/051; G11B17/0515; G11B17/022; G11B17/028; G11B17/0288
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
150 words
A disc reproducing apparatus in which a disc is delivered from a disc insertion opening to a predetermined position within a player, a clamper arm that extends over a turntable for clamping the disc to fix the disc on the turntable, and then the turntable is rotated to reproduce information recorded in the disc, said apparatus comprising: a disc guide plate being pivotally mounted to the clamper arm such that said disc guide plate engages and disengages the clamper arm; and a disc guiding recess into which a small-diameter disc can be fitted being provided to said disc guide plate; wherein when the small-diameter disc is delivered, the small-diameter disc is fitted into said disc guiding recess to be aligned with a clamp position, and when a large-diameter disc is delivered, the large-diameter disc pushes said disc guide plate away to be aligned with said clamp position on the turntable.
Claim 2
Dependent Claim
150 words
A disc reproducing apparatus in which a disc is delivered from a disc insertion opening to a predetermined position within a player, a clamper arm that extends over a turntable for clamping the disc to fix the disc on the turntable, and then the turntable is rotated to reproduce information recorded in the disc, said apparatus comprising: a disc guide plate being pivotally mounted to the clamper arm such that said disc guide plate engages and disengages the clamper arm; and a disc guiding recess into which a small-diameter disc can be fitted being provided to said disc guide plate; wherein when the small-diameter disc is delivered, the small-diameter disc is fitted into said disc guiding recess to be aligned with a clamp position, and when a large-diameter disc is delivered, the large-diameter disc pushes said disc guide plate away to be aligned with said clamp position on the turntable.
Claim 3
Dependent Claim
186 words
A disc reproducing apparatus in which a disc is inserted through a disc insertion opening to abut a drive roller and is then delivered by means of the drive roller to a clamp position of a player, a clamper arm extending over the turntable to fix the disc on the turntable, and the turntable is rotated to reproduce information recorded in the disc, said apparatus comprising: a disc guide plate for guiding a small-diameter disc to the clamp position on the turntable being pivotally mounted on the underside of the clamper arm; a guide member being opposed to said drive roller, the guide member cooperating with said drive roller to guide and deliver the disc; a parallel guide surface being formed on said guide member, said surface being substantially parallel to the disc delivery direction; and an inclined groove being formed continuously integral with the parallel guide surface, said inclined groove having a length through which said small-diameter disc can pass in a disc insertion direction but through which a large-diameter disc cannot pass, said inclined groove orienting said small-diameter disc to said disc guide plate.
Claim 4
Dependent Claim
186 words
A disc reproducing apparatus in which a disc is inserted through a disc insertion opening to abut a drive roller and is then delivered by means of the drive roller to a clamp position of a player, a clamper arm extending over the turntable to fix the disc on the turntable, and the turntable is rotated to reproduce information recorded in the disc, said apparatus comprising: a disc guide plate for guiding a small-diameter disc to the clamp position on the turntable being pivotally mounted on the underside of the clamper arm; a guide member being opposed to said drive roller, the guide member cooperating with said drive roller to guide and deliver the disc; a parallel guide surface being formed on said guide member, said surface being substantially parallel to the disc delivery direction; and an inclined groove being formed continuously integral with the parallel guide surface, said inclined groove having a length through which said small-diameter disc can pass in a disc insertion direction but through which a large-diameter disc cannot pass, said inclined groove orienting said small-diameter disc to said disc guide plate.
Claim 5
Dependent Claim
29 words
A disc reproducing apparatus according to claim 2, wherein said drive roller has a rotational axis directly below an intersection of said parallel guide surface and said inclined groove.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-29 | 1995-01-28 | 1995-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-29 | 1999-01-28 | 1999-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-29 | 2003-01-28 | 2003-07-30 | $7700.00 | Window Closed / Lapsed |