US4607361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Record player having a loading mechanism for loading a disk
Assignee: US Philips Corp
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Filing: 1985-08-15
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Granted: 1986-08-19
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Expires: 2005-08-15
Abstract
Abstract In a record player having a loading mechanism for loading a disk (30), a rectilinearly retractable and extensible drawer (6) is provided, which carries a platform (15) and a pivotable pressure lever (24) with a disk loader (29). The drawer (6) has in side walls (9,10) grooves (14), in which the platform (15) is movable between an upper and a lower position in the direction of height with respect to the drawer, whereby the platform (15) in the lower position is located below the upper side of the turn-table (21). The platform (15) is held during a first part of the sliding-in movement by at least one positioning member (17) in the upper position in the grooves and is pressed during a second part of the sliding-in movement against at least one abutment stop (26), as a result of which it performs a substantially vertical movement with respect to the turn-table (21) in the grooves (14) to the lower position. The pressure lever (24) is engaged during the movement in the grooves (14) with the platform (15) and is pivoted in downward direction.
Inventors
- 👤 Pieter D. Schuitmaker
- 👤 Wilhelmus P. C. Rietbergen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:42
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: 13
Claim 1
Independent Claim
303 words
A record player having a loading mechanism for loading a disc, comprising: a housing, a frame fixed within said housing, a turntable having an upper side and being rotatably journalled within said frame about a vertical axis, and a loading mechanism comprising a drawer having opposed side walls, a platform carried on said drawer for carrying a disc to the turntable, and a pressure lever having a disc loader for pressing a disc against the turntable, said drawer being rectilinearly moveable in a horizontal direction inwardly from an opened position to a closed position and outwardly from said closed position to said opened position, said drawer's inward movement having successive first and second stages, characterized in that each of said drawer side walls has a groove sloping obliquely upwardly in the direction of the drawer's inward movement, said platform includes means engaging said grooves for guiding the platform in reversible movement between an upper position and a lower position, in said lower position said platform being positioned below the turntable's upper side, and said pressure lever is pivoted about a horizontal axis perpendicular to the direction of movement of the drawer, said mechanism further comprises (a) at least one positioning member arranged for holding said platform in said upper position during said first stage of the drawer's inward movement, (b) an abutment stop formed as a projection on said pressure lever arranged to engage said platform during said second stage of said inward movement so as to block further inward movement of the platform and cause the platform to move, with respect to said grooves, to said lower position, and (c) hook means on said platform for engaging said abutment stop and pivoting said pressure lever in a generally downward direction during the downward movement of the platform with respect to said grooves.
Claim 2
Dependent Claim
303 words
A record player having a loading mechanism for loading a disc, comprising: a housing, a frame fixed within said housing, a turntable having an upper side and being rotatably journalled within said frame about a vertical axis, and a loading mechanism comprising a drawer having opposed side walls, a platform carried on said drawer for carrying a disc to the turntable, and a pressure lever having a disc loader for pressing a disc against the turntable, said drawer being rectilinearly moveable in a horizontal direction inwardly from an opened position to a closed position and outwardly from said closed position to said opened position, said drawer's inward movement having successive first and second stages, characterized in that each of said drawer side walls has a groove sloping obliquely upwardly in the direction of the drawer's inward movement, said platform includes means engaging said grooves for guiding the platform in reversible movement between an upper position and a lower position, in said lower position said platform being positioned below the turntable's upper side, and said pressure lever is pivoted about a horizontal axis perpendicular to the direction of movement of the drawer, said mechanism further comprises (a) at least one positioning member arranged for holding said platform in said upper position during said first stage of the drawer's inward movement, (b) an abutment stop formed as a projection on said pressure lever arranged to engage said platform during said second stage of said inward movement so as to block further inward movement of the platform and cause the platform to move, with respect to said grooves, to said lower position, and (c) hook means on said platform for engaging said abutment stop and pivoting said pressure lever in a generally downward direction during the downward movement of the platform with respect to said grooves.
Claim 3
Dependent Claim
76 words
A player as claimed in claim 1, characterized in that said positioning member is a tension spring having respective ends connected to the platform and to the drawer, arranged so as to urge the platform with respect to the drawer in the direction of inward movement of the drawer, during a first part of the outward movement of the drawer said spring causing said platform to move upwardly by engagement with and movement along said grooves.
Claim 4
Dependent Claim
49 words
A player as claimed in claim 2, characterized in that each side wall has two said grooves having corresponding groove parts parallel to each other, and said means engaging said grooves comprise respective pins projecting from the platform transversely to the direction of drawer movement and engaging respective grooves.
Claim 5
Dependent Claim
94 words
A player as claimed in claim 3, characterized in that said hook is fixed to said platform, and the projection forming the abutment stop includes a laterally extending pin arranged for engagement by said hook, the player further including means for biasing said pressure lever in an upward direction, and an abutment stop arranged to hold said pressure lever in an upward position after disengagement from the platform, said projection so situated that during a next inward movement of the drawer the lever's projection will again be engaged by said hook on said platform.
Claim 6
Dependent Claim
49 words
A player as claimed in claim 1, characterized in that each side wall has two said grooves having corresponding groove parts parallel to each other, and said means engaging said grooves comprise respective pins projecting from the platform transversely to the direction of drawer movement and engaging respective grooves.
Claim 7
Dependent Claim
97 words
A player as claimed in claim 5, characterized in that said hook is fixed to said platform, and the projection forming the abutment stop includes a laterally extending pin arranged for engagement by said hook, the player further including means for biasing said pressure lever in an upward direction, and a second abutment stop arranged to hold said pressure lever in an upward position after disengagement from the platform, said second stop so arranged that during a next inward movement of the drawer in the lever's pin will again be engaged by said hook on said platform.
Claim 8
Dependent Claim
281 words
A record player having a loading mechanism for loading a disc, comprising: a housing, a frame fixed within said housing, a turntable having an upper side and being rotatably journalled within said frame about a vertical axis, and a loading mechanism comprising a drawer having opposed side walls, a platform carried on said drawer for carrying a disc to the turntable, and a pressure lever having a disc loader for pressing a disc against the turntable, said drawer being rectilinearly moveable in a horizontal direction inwardly from an opened position to a closed position and outwardly from said closed position to said opened position, said drawer's inward movement having successive first and second stages, characterized in that each of said drawer side walls has a groove sloping obliquely upwardly in the direction of the drawer's inward movement, said platform includes means engaging said grooves for guiding the platform in reversible movement between an upper position and a lower position, in said lower position said platform being positioned below the turntable's upper side, and said mechanism further comprises (a) at least one positioning member arranged for releasably maintaining said platform in said upper position during said first stage of the drawer's inward movement, (b) an abutment stop on said pressure lever arranged to engage said platform during said second stage of said inward movement so as to block further inward movement of the platform, thus causing the platform to move, with respect to said grooves, to said lower position, and (c) means on said platform for engaging said abutment stop and pivoting said pressure lever in a generally downward direction during the downward movement of the platform with respect to said grooves.
Claim 9
Dependent Claim
281 words
A record player having a loading mechanism for loading a disc, comprising: a housing, a frame fixed within said housing, a turntable having an upper side and being rotatably journalled within said frame about a vertical axis, and a loading mechanism comprising a drawer having opposed side walls, a platform carried on said drawer for carrying a disc to the turntable, and a pressure lever having a disc loader for pressing a disc against the turntable, said drawer being rectilinearly moveable in a horizontal direction inwardly from an opened position to a closed position and outwardly from said closed position to said opened position, said drawer's inward movement having successive first and second stages, characterized in that each of said drawer side walls has a groove sloping obliquely upwardly in the direction of the drawer's inward movement, said platform includes means engaging said grooves for guiding the platform in reversible movement between an upper position and a lower position, in said lower position said platform being positioned below the turntable's upper side, and said mechanism further comprises (a) at least one positioning member arranged for releasably maintaining said platform in said upper position during said first stage of the drawer's inward movement, (b) an abutment stop on said pressure lever arranged to engage said platform during said second stage of said inward movement so as to block further inward movement of the platform, thus causing the platform to move, with respect to said grooves, to said lower position, and (c) means on said platform for engaging said abutment stop and pivoting said pressure lever in a generally downward direction during the downward movement of the platform with respect to said grooves.
Claim 10
Dependent Claim
268 words
A record player having a loading mechanism for loading a disc, comprising: a housing a frame fixed within said housing, a turntable having an upper side and being rotatably journalled within said frame about a vertical axis, and a loading mechanism comprising a drawer having opposed side walls, a platform carried on said drawer for carrying a disc to the turntable, and a pressure lever having a disc loader for pressing a disc against the turntable, said drawer being moveable in a horizontal direction inwardly from an opened position to a closed position and outwardly from said closed position to said opened position, said drawer's inward movement having successive first and second stages, characterized in that each of said drawer side walls has a groove sloping obliquely upwardly in the direction of the drawer's inward movement, said platform includes means engaging said grooves for guiding the platform in reversible movement between an upper position and a lower position, in said lower position said platform being positioned below the turntable's upper side, and said mechanism further comprises (a) at least one positioning member mounted on said frame for engaging and releasably maintaining said platform in said upper position during said first stage of the drawer's inward movement, and (b) a single set of stop and engaging elements mounted on said platform and pressure lever respectively, one of said elements engaging the other during said second stage of said inward movement for both stopping said inward movement of said platform and driving said pressure lever to pivot downward during said downward movement of the platform with respect to said groove.
Claim 11
Dependent Claim
268 words
A record player having a loading mechanism for loading a disc, comprising: a housing a frame fixed within said housing, a turntable having an upper side and being rotatably journalled within said frame about a vertical axis, and a loading mechanism comprising a drawer having opposed side walls, a platform carried on said drawer for carrying a disc to the turntable, and a pressure lever having a disc loader for pressing a disc against the turntable, said drawer being moveable in a horizontal direction inwardly from an opened position to a closed position and outwardly from said closed position to said opened position, said drawer's inward movement having successive first and second stages, characterized in that each of said drawer side walls has a groove sloping obliquely upwardly in the direction of the drawer's inward movement, said platform includes means engaging said grooves for guiding the platform in reversible movement between an upper position and a lower position, in said lower position said platform being positioned below the turntable's upper side, and said mechanism further comprises (a) at least one positioning member mounted on said frame for engaging and releasably maintaining said platform in said upper position during said first stage of the drawer's inward movement, and (b) a single set of stop and engaging elements mounted on said platform and pressure lever respectively, one of said elements engaging the other during said second stage of said inward movement for both stopping said inward movement of said platform and driving said pressure lever to pivot downward during said downward movement of the platform with respect to said groove.
Claim 12
Dependent Claim
26 words
A record player according to claim 8 wherein said set of elements comprises a hook on said platform and an abutment stop on said pressure lever.
Claim 13
Dependent Claim
30 words
A record player according to claim 8 wherein said positioning member comprises a tension spring having one part secured to said frame and a second part secured to said platform.
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) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |