US4616357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc player
Assignee: US Philips Corp
•
Filing: 1984-11-28
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Granted: 1986-10-07
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Expires: 2004-11-28
Abstract
Abstract A disc player includes a loading device for loading an information disc on the turntable of the player. The loading device comprises a frame and a loading support for supporting the disc, which loading support is movable horizontally and vertically to transfer a disc to the turntable. The player further comprises a pressure member mounted on a pressure member support for urging the loaded disc into a centered position on the turntable. The pressure member support bears on the loading support under the influence of springs in a manner permitting horizontal movement of the loading support relative to the pressure member support. The pressure member support is slidably guided for movement in the vertical direction to urge the disc onto the turntable by guide means provided on the frame.
Inventors
- 👤 Mitsuhisa Nakayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:23
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/04; G11B17/05; G11B17/053; G11B17/056; G11B17/022; G11B17/028; G11B17/035
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
243 words
A disc player having a turntable for rotating information discs and a loading device for loading said information discs on said turntable, said loading device comprising: a frame, said frame at least in part enclosing said disc player; and a loading support for supporting said disc during transport of said disc to said turntable, said loading support being movable in directions both parallel and transverse to the rotating axis of said turntable to transfer said disc to said turntable for rotation therewith; and said disc player comprising: a pressure member and a pressure member support, said pressure member being mounted on said pressure member support, said pressure member being positioned in opposition to said turntable on said disc player, said pressure member support bearing against said loading support of said loading device; spring means for urging said pressure member support to bear against said loading support, a sliding contact being maintained between said loading support and said pressure member support permitting relative motion between them in said transverse directions; and guide means rigidly connected to said frame for guiding movement of said pressure member in said directions parallel to the rotating axis of said turntable, and for maintaining said pressure member opposite said turntable, said pressure member following motions of said loading support in the directions parallel to said turntable axis under the urging of said spring means, said pressure member pressing on a disc loaded into said turntable by said loading support.
Claim 2
Dependent Claim
243 words
A disc player having a turntable for rotating information discs and a loading device for loading said information discs on said turntable, said loading device comprising: a frame, said frame at least in part enclosing said disc player; and a loading support for supporting said disc during transport of said disc to said turntable, said loading support being movable in directions both parallel and transverse to the rotating axis of said turntable to transfer said disc to said turntable for rotation therewith; and said disc player comprising: a pressure member and a pressure member support, said pressure member being mounted on said pressure member support, said pressure member being positioned in opposition to said turntable on said disc player, said pressure member support bearing against said loading support of said loading device; spring means for urging said pressure member support to bear against said loading support, a sliding contact being maintained between said loading support and said pressure member support permitting relative motion between them in said transverse directions; and guide means rigidly connected to said frame for guiding movement of said pressure member in said directions parallel to the rotating axis of said turntable, and for maintaining said pressure member opposite said turntable, said pressure member following motions of said loading support in the directions parallel to said turntable axis under the urging of said spring means, said pressure member pressing on a disc loaded into said turntable by said loading support.
Claim 3
Dependent Claim
39 words
A disc player and loading device as claimed in claim 1, wherein said pressure member support includes slide members extending parallel to said turntable axis, said slide members being slidably guided by said guide means connected to said frame.
Claim 4
Dependent Claim
79 words
A disc player and loading device as claimed in claim 2 wherein said pressure member support is U-shaped, said pressure member being mounted on the transverse portion of said U-shaped support, said slide members being the arms of said U-shaped support member and extending from said transverse portion, extensions of said slide members proximate the connection between said slide members and said transverse portion being extended to make said contact with and bear upon surfaces of said loading support.
Claim 5
Dependent Claim
72 words
A disc player and loading device as claimed in claim 3 and further comprising rods extending parallel to said turntable axis and mounted on said transverse portion of said U-shaped support, and wherein said spring means comprise springs positioned around said rods and compressed between a fixed portion connected to said frame and said pressure member support, the force of said compressed springs driving said pressure support member against said loading support.
Claim 6
Dependent Claim
27 words
A disc player and loading device as claimed in claim 3 wherein said extensions of said slide members for making contact with said loading support are convex.
Claim 7
Dependent Claim
17 words
A disc player and loading device as claimed in claim 1, wherein said turntable axis is vertical.
Claim 8
Dependent Claim
67 words
A disc player and a loading device as claimed in claim 6, and further comprising a disc carrier, said disc carrier supporting an information disc from below said disk, said loading support being adapted to hold said disc carrier with said disc in a horizontal positioin, said loading support transporting said disc and said disc carrier to a position where said disc is centered over said turntable.
Claim 9
Dependent Claim
23 words
A disc player and a loading device as claimed in claim 1, wherein said pressure member support bears continuously against said loading support.
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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) | 1989-10-06 | 1990-04-07 | 1990-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-06 | 1994-04-07 | 1994-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-06 | 1998-04-07 | 1998-10-07 | $7700.00 | Window Closed / Lapsed |