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US4715025A Expired / Lapsed US ⏱️ 0.0 years remaining

Disc-record player comprising a disc-loading mechanism

Assignee: US Philips Corp
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Filing: 1985-08-22
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Granted: 1987-12-22
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Expires: 2005-08-22
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Abstract

Abstract The invention relates to a disc-record player, comprising a disc-loading mechanism, a frame (11), and a turntable (13) mounted in said frame, which loading mechanism comprises a movable drawer (21), for transferring the disc to and removing it from the turntable, and a movable pressure-member support (39) carrying a disc pressure member (37), for pressing the disc onto the turntable in the operative position. The pressure-member-support cooperates with at least one lever (41) adjacent the turntable, which lever extends in the inward direction of movement of the drawer, comprises a first lever arm (41A) and behind it a second lever arm (41B), and is movable about a pivot (43), which is situated between the first and the second lever arm and which is mounted in the frame. The first lever arm is positioned against the pressure-member support and the second lever arm carries a first coupling means which is cooperable with a second coupling means on the drawer, one of the coupling means comprising a wall portion (53) which is inclined viewed in the inward direction of movement of the drawer and over which a guide element (51) of the other coupling means moves during the inward movement of the drawer for pivoting the lever and bringing the disc pressure member into the operative position.

Inventors

  • 👤 Antonius A. C. C. Eijsermans

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 21:30
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: 6
Claim 1
Independent Claim 260 words
A disc record player comprising a frame, a housing having a front opening therein, a turntable mounted for rotation in said frame a drawer movable horizontally on a rectilinear path in inward and outward directions through said opening for transferring a disc respectively to and from said turntable, a pressure member support spanning said turntable and carrying a pressure member above said turntable for urging said disc against said turntable, said support being movable vertically between an operative position and an inoperative position remote therefrom, said support being movable along a pair of rectilinear guides in the frame on opposite sides of the turntable, a pair of levers generally parallel to the direction of movement of said drawer on opposite sides thereof, each lever being pivotable about a spindle supported in said frame, each lever having a first lever arm extending from said spindle toward said front opening and a second lever arm extending from said spindle away from said front opening, each first lever arm cooperating with said pressure member support, each second lever arm carrying a first coupling means for cooperation with a respesctive second coupling means on the drawer, one of each pair of cooperating coupling means comprising a wall portion which is inclined viewed in the inward direction of movement of the drawer, a guide element of the other coupling means of each pair being moved over said wall portion during the inward movement of the drawer to cause the lever to be pivoted and the pressure member to be moved vertically into the operative position.
Claim 2
Dependent Claim 260 words
A disc record player comprising a frame, a housing having a front opening therein, a turntable mounted for rotation in said frame a drawer movable horizontally on a rectilinear path in inward and outward directions through said opening for transferring a disc respectively to and from said turntable, a pressure member support spanning said turntable and carrying a pressure member above said turntable for urging said disc against said turntable, said support being movable vertically between an operative position and an inoperative position remote therefrom, said support being movable along a pair of rectilinear guides in the frame on opposite sides of the turntable, a pair of levers generally parallel to the direction of movement of said drawer on opposite sides thereof, each lever being pivotable about a spindle supported in said frame, each lever having a first lever arm extending from said spindle toward said front opening and a second lever arm extending from said spindle away from said front opening, each first lever arm cooperating with said pressure member support, each second lever arm carrying a first coupling means for cooperation with a respesctive second coupling means on the drawer, one of each pair of cooperating coupling means comprising a wall portion which is inclined viewed in the inward direction of movement of the drawer, a guide element of the other coupling means of each pair being moved over said wall portion during the inward movement of the drawer to cause the lever to be pivoted and the pressure member to be moved vertically into the operative position.
Claim 3
Dependent Claim 29 words
A disc-record player as claimed in claim 1, characterized in that the inclined wall portion forms part of a groove or slot in which the guide element is movable.
Claim 4
Dependent Claim 42 words
A disc-record player as claimed in claim 1, characterized in that the first coupling means of the second lever arm comprises a guide element constructed as a rotatable roller and the second coupling means of the drawer comprises said inclined wall portion.
Claim 5
Dependent Claim 48 words
A disc-record player as in claim 1 wherein each rectilinear guide comprises a sliding wall in a respective sidewall of said frame and a sliding block carried by a respective first lever arm, each sliding block being movable vertically along the sliding wall of the respective rectilinear guide.
Claim 6
Dependent Claim 28 words
A disc record player as in claim 4 wherein each first lever arm has a slot and each sliding block has a pin received in a respective slot.

References Cited (Backward Citations)

US4479210A Cited
US4561085A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-12-21 1991-06-22 1991-12-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-12-21 1995-06-22 1995-12-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-12-21 1999-06-22 1999-12-22 $7700.00 Window Closed / Lapsed

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