Patent US4479210A successfully refreshed from Google Patents.
US4479210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Record-disc player
Assignee: US Philips Corp
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Filing: 1983-11-14
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Granted: 1984-10-23
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Expires: 2003-11-14
Abstract
Abstract For loading a record disc on the turntable of a record-disc player, a loading device is provided which comprises a movable loading support for supporting a holder containing a record disc. The loading support is slidably supported between two fixed, parallel, vertical guide plates by pins on the support sliding in L-shaped guide slots in the guide plates, each slot having a vertical section extending downwardly from a horizontal section. Slidably supported on the outer sides of the guide plates for horizontal movement in vertical planes parallel to the planes of the guide plates are two drive plates having inclined slots in which the pins on the loading support slidably engage. By cooperation between the inclined slots and the pins the drive plates can move the loading support, guided by the L-shaped slots in the guide plates, along a horizontal path and down a vertical path to deposit the record disc supported on the loading support on the turntable. Pivotally supported between the guide plates is an arm carrying a pressure member for urging the loaded disc into a centered position on the turntable.
Inventors
- 👤 Mituhisa Nakayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:58
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/04; G11B17/05; G11B17/053; G11B17/056; G11B17/022; G11B17/028; G11B17/03; G11B17/22; G11B17/26
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
398 words
A record-disc player with a loading device for loading a record disc on the turntable of the player, the loading device comprising: a movable loading support for supporting the disc, a guide plate fixed in a vertical plane and formed with L-shaped guide slots each comprising a horizontal section and a vertical section extending downwardly from the horizontal section at an end thereof, a drive plate supported for movement in a horizontal direction in a plane parallel to the plane of the guide plate and formed with slots which are inclined to the direction of movement of the drive plate, the loading support comprising pins, each of which engages in an associated one of said guide slots and an associated one of said inclined slots, and a toothed rack on the drive plate and a pinion for cooperation with the rack to move the drive plate, said guide slots being arranged to guide the loading support, by cooperation with said pins, from a rest position along a horizontal path and down a vertical path to deposit the record disc supported on the loading support on the turntable, and said inclined slots being cooperable with said pins, during movement of the drive plate, to move the loading support along and down said paths respectively, characterized in that the player comprises a pivotal arm carrying a pressure member for urging the loaded disc into the centred position on the turntable, the arm being pivotable between an inoperative position and an operative position about a horizontal axis perpendicular to the directions of movement of the loading support, and the arm comprising a part formed with a recess which, when the arm is in the inoperative position, is located beside and coincides with the horizontal section of one of the guide slots in the guideplate at the end of said section which adjoins the vertical section of the slot, with the mouth of the recess facing towards the other end of the horizontal section, so that when the pin on the loading support which engages in that guide slot reaches the end of the horizontal section of the slot which adjoins the vertical section during the loading movement of the loading support, the pin enters said recess, and as the pin moves down the vertical section of the slot it cooperates with the recess to move the arm to the operative position.
Claim 2
Dependent Claim
398 words
A record-disc player with a loading device for loading a record disc on the turntable of the player, the loading device comprising: a movable loading support for supporting the disc, a guide plate fixed in a vertical plane and formed with L-shaped guide slots each comprising a horizontal section and a vertical section extending downwardly from the horizontal section at an end thereof, a drive plate supported for movement in a horizontal direction in a plane parallel to the plane of the guide plate and formed with slots which are inclined to the direction of movement of the drive plate, the loading support comprising pins, each of which engages in an associated one of said guide slots and an associated one of said inclined slots, and a toothed rack on the drive plate and a pinion for cooperation with the rack to move the drive plate, said guide slots being arranged to guide the loading support, by cooperation with said pins, from a rest position along a horizontal path and down a vertical path to deposit the record disc supported on the loading support on the turntable, and said inclined slots being cooperable with said pins, during movement of the drive plate, to move the loading support along and down said paths respectively, characterized in that the player comprises a pivotal arm carrying a pressure member for urging the loaded disc into the centred position on the turntable, the arm being pivotable between an inoperative position and an operative position about a horizontal axis perpendicular to the directions of movement of the loading support, and the arm comprising a part formed with a recess which, when the arm is in the inoperative position, is located beside and coincides with the horizontal section of one of the guide slots in the guideplate at the end of said section which adjoins the vertical section of the slot, with the mouth of the recess facing towards the other end of the horizontal section, so that when the pin on the loading support which engages in that guide slot reaches the end of the horizontal section of the slot which adjoins the vertical section during the loading movement of the loading support, the pin enters said recess, and as the pin moves down the vertical section of the slot it cooperates with the recess to move the arm to the operative position.
Claim 3
Dependent Claim
52 words
A record-disc player as claimed in claim 1, characterized in that said part of the arm comprises a plate which is pivotally supported on the guide plate for movement about said axis in a plane parallel to the plane of the guide plate, and in an edge which the recess is formed.
Claim 4
Dependent Claim
33 words
A record-disc player as claimed in claim 1, characterized in that the arm is urged by spring means to its inoperative position, which position is determined by stop means on the guide plate.
Claim 5
Dependent Claim
33 words
A record-disc player as claimed in claim 2, characterized in that the arm is urged by spring means to its inoperative position, which position is determined by stop means on the guide plate.
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) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |