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US4592040A Expired / Lapsed US ⏱️ 0.0 years remaining

Disc-record player with a pressure lever carrying a pressure member

Assignee: US Philips Corp
•
Filing: 1984-08-02
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Granted: 1986-05-27
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Expires: 2004-08-02
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Abstract

Abstract In a disc-record player comprising a turntable which is mounted for rotation in a frame there is provided a pressure lever which is pivotally connected to the frame by a spindle. The pressure lever comprises an arm portion and a pressure portion, the arm portion being connected to the frame by said spindle and the pressure portion being connected to the arm portion by another spindle which extends parallel to the first-mentioned spindle. The pressure portion carries a pressure member which can be moved towards the turntable from an inoperative position into a press-on position by pivoting the arm portion. In the press-on position the pressure portion exerts pressure on the pressure member via a ball, the ball and the pressure member being at least substantially coaxial with the turntable in the press-on position. By pivoting the pressure portion relative to the arm portion the pressure member extends substantially parallel to the upper surface of the turntable both in the inoperative position and in the press-on position.

Inventors

  • 👤 Kiyoshi Ohsaki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 19:05
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/022; G11B17/028; G11B17/0284; G11B17/0286; G11B17/035; G11B17/04

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 190 words
A disc-record player comprising a frame, a turntable having a playing side and mounted for rotation in said frame, a pressure lever pivotally connected to the frame, a pressure member carried and movable by the pressure lever from an inoperative position towards the turntable into an operating position, and a ball arranged between the pressure lever and the pressure member; in the operating position the ball and the pressure member being substantially coaxial with the turntable, the pressure lever exerting pressure on the pressure member through the ball, and the pressure member urging a disc, which has been placed into the player, against the playing side of the turntable, characterized in that the pressure lever is articulated, and comprises an arm portion pivotally connected to the frame about a first pivot axis, and a pressure portion pivotally connected to the arm portion about a second pivot axis parallel to said first pivot axis, said pressure member is carried by said pressure portion, and the player includes means for causing the pressure member to lie substantially parallel to the turntable playing side both in the inoperative and in the operating positions.
Claim 2
Dependent Claim 190 words
A disc-record player comprising a frame, a turntable having a playing side and mounted for rotation in said frame, a pressure lever pivotally connected to the frame, a pressure member carried and movable by the pressure lever from an inoperative position towards the turntable into an operating position, and a ball arranged between the pressure lever and the pressure member; in the operating position the ball and the pressure member being substantially coaxial with the turntable, the pressure lever exerting pressure on the pressure member through the ball, and the pressure member urging a disc, which has been placed into the player, against the playing side of the turntable, characterized in that the pressure lever is articulated, and comprises an arm portion pivotally connected to the frame about a first pivot axis, and a pressure portion pivotally connected to the arm portion about a second pivot axis parallel to said first pivot axis, said pressure member is carried by said pressure portion, and the player includes means for causing the pressure member to lie substantially parallel to the turntable playing side both in the inoperative and in the operating positions.
Claim 3
Dependent Claim 60 words
A player as claimed in claim 1, characterized in that the pressure portion comprises an annular part arranged on the side of the pressure portion facing the turntable for holding the ball against displacement in directions transverse the axis of the turntable, at least in the operating position of the pressure member said annular part being coaxial with the turntable.
Claim 4
Dependent Claim 127 words
A player as claimed in claim 1, characterized by comprising: an actuating lever pivotally connected to said frame about said first pivotal axis, a first spring arranged between the frame and the actuating lever to urge the actuating lever in an axial direction away from the turntable, and a second spring arranged between said actuating lever and said arm portion to urge the arm portion and the actuating lever into abutment with each other so that they are pivoted together when the pressure member moves from the inoperative position to the operating position, the actuating lever being pivotable further against the force of the second spring when the pressure member has reached the operating position, thereby permitting the actuating lever to become disengaged from the arm portion.
Claim 5
Dependent Claim 357 words
A disc-record player comprising a frame, a turntable having a playing side and mounted for rotation in said frame, a pressure lever pivotally connected to the frame, a pressure member carried and movable by the pressure lever from an inoperative position towards the turntable into an operating position, and a ball arranged between the pressure lever and the pressure member; in the operating position the ball and the pressure member being substantially coaxial with the turntable, the pressure lever exerting pressure on the pressure member through the ball, and the pressure member urging a disc, which has been placed into the player, against the player side of the turntable, characterized in that the pressure lever is articulated, and comprises an arm portion pivotally connected to the frame about a first pivot axis, and a pressure portion pivotally connected to the arm portion about a second pivot axis parallel to said first pivot axis, said pressure member is carried by said pressure portion, and the player includes: means for causing the pressure member to lie substantially parallel to the turntable playing side both in the inoperative and in the operating positions, an actuating lever pivotally connected to said frame about said first pivotal axis, and comprising an actuating portion and a stop portion, the stop portion abutting the arm portion during the common pivotal movement of the actuating lever and the arm portion, a drive member, and means for controlling the pivotal movement of the actuating lever responsive to movement of said drive member, a first spring arranged between the frame and the actuating lever to urge the actuating lever in an axial direction away from the turntable, and a second spring arranged between said actuating lever and said arm portion to urge the arm portion and the actuating lever into abutment with each other so that they are pivoted together when the pressure member moves from the inoperative position to the operating position, the actuating lever being pivotable further against the force of the second spring when the pressure member has reached the operating position, thereby permitting the actuating lever to become disengaged from the arm portion.
Claim 6
Dependent Claim 357 words
A disc-record player comprising a frame, a turntable having a playing side and mounted for rotation in said frame, a pressure lever pivotally connected to the frame, a pressure member carried and movable by the pressure lever from an inoperative position towards the turntable into an operating position, and a ball arranged between the pressure lever and the pressure member; in the operating position the ball and the pressure member being substantially coaxial with the turntable, the pressure lever exerting pressure on the pressure member through the ball, and the pressure member urging a disc, which has been placed into the player, against the player side of the turntable, characterized in that the pressure lever is articulated, and comprises an arm portion pivotally connected to the frame about a first pivot axis, and a pressure portion pivotally connected to the arm portion about a second pivot axis parallel to said first pivot axis, said pressure member is carried by said pressure portion, and the player includes: means for causing the pressure member to lie substantially parallel to the turntable playing side both in the inoperative and in the operating positions, an actuating lever pivotally connected to said frame about said first pivotal axis, and comprising an actuating portion and a stop portion, the stop portion abutting the arm portion during the common pivotal movement of the actuating lever and the arm portion, a drive member, and means for controlling the pivotal movement of the actuating lever responsive to movement of said drive member, a first spring arranged between the frame and the actuating lever to urge the actuating lever in an axial direction away from the turntable, and a second spring arranged between said actuating lever and said arm portion to urge the arm portion and the actuating lever into abutment with each other so that they are pivoted together when the pressure member moves from the inoperative position to the operating position, the actuating lever being pivotable further against the force of the second spring when the pressure member has reached the operating position, thereby permitting the actuating lever to become disengaged from the arm portion.
Claim 7
Dependent Claim 85 words
A player as claimed in claim 4, characterized by comprising a loading device for transferring a disc from outside the player towards the turntable, said drive member forming part of said loading device, and said actuating portion of the actuating lever being disposed in the path of movement of the drive member, under the influence of the first spring, during the inward movement of the loading device; and being actuated and subsequently pivotted by the drive member during a final stage of the inward movement.
Claim 8
Dependent Claim 70 words
A player as claimed in claim 5, characterized in that the turnable axis is vertical, with the playing side upward, and the actuating portion and the stop portion of the actuating lever are disposed to opposite sides of said first pivot axis, in the operating position of the pressure member the actuating portion being inclined downwardly and the stop portion extending upwardly relative to the remainder of the actuating lever.
Claim 9
Dependent Claim 73 words
A player as claimed in any one of claims 3 to 6, characterized by comprising a third spring arranged between the pressure portion and the arm portion to urge the arm portion toward the turntable, and in that the frame comprises a portion against which the pressure portion abuts in the inoperative position, arranged such that in the inoperative position the pressure portion lies substantially parallel to the playing side of the turntable.
Claim 10
Dependent Claim 60 words
A player as claimed in claim 7, characterized in that the pressure portion comprises an annular part arranged on the side of the pressure portion facing the turntable for holding the ball against displacement in directions transverse the axis of the turntable, at least in the operating position of the pressure member said annular part being coaxial with the turntable.

References Cited (Backward Citations)

US3436082A Cited
US4507768A Cited
US4499573A Cited
JPS5857664A Cited
JPS5868267A Cited
JPS5940345A Cited
US4498165A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-05-26 1989-11-25 1990-05-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-05-26 1993-11-25 1994-05-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-05-26 1997-11-25 1998-05-27 $7700.00 Window Closed / Lapsed

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