← Back to Patent Explorer
US4498161A Expired / Lapsed US ⏱️ 0.0 years remaining

Disc player

Assignee: US Philips Corp
•
Filing: 1983-03-28
•
Granted: 1985-02-05
•
Expires: 2003-03-28
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The invention relates to a disc player for a rigid information-carrying disc, which player comprises a turntable which is mounted for rotation on a chassis. The disc player comprises a pivotal lid for closing the player, which lid carries an annular disc loader which when the lid is pivoted towards the turntable urges the disc resiliently against the turntable. The lid is closed in two stages. In a first, loading stage in which the lid is pivoted towards the turntable and in a consecutive lifting stage, the lid is resiliently pivoted away from the turntable towards a final position, in which final position the disc loader is clear of the disc. The lid is positioned by stop means, and a return of the lid to the loading stage is inhibited by a latch.

Inventors

  • 👤 Kurt Eisemann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 18:48
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/022; G11B17/028; G11B17/0284; G11B17/032

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 205 words
A disc player for a rigid information-carrying disc, said player comprising a turntable which is mounted for rotation on a chassis and a lid for closing said player, said player also including resilient means coupled to said lid, stop means, a latch, and a latching plate; said lid being pivotally connected to said chassis, said player including a disc loader carried by said lid, said loader when said lid is pivoted toward said turntable, acts resiliently on said turntable, said lid when closing performs a pivotal movement in respective loading and lifting stages, said lid including at least one stop element, said lid in said loading stage being pivoted towards said turntable, during which said disc loader urges the disc against said turntable, in said lifting stage consecutive to said loading stage said lid being pivoted away from said turntable by said resilient means into a final position in which said lid is positioned by said stop means, in said final position of said lid said disc loader being clear of the disc, and in which said latch which is movable relative to said chassis, moves to a position in the pivotal path of said stop element, and inhibits a return to said loading stage.
Claim 2
Dependent Claim 205 words
A disc player for a rigid information-carrying disc, said player comprising a turntable which is mounted for rotation on a chassis and a lid for closing said player, said player also including resilient means coupled to said lid, stop means, a latch, and a latching plate; said lid being pivotally connected to said chassis, said player including a disc loader carried by said lid, said loader when said lid is pivoted toward said turntable, acts resiliently on said turntable, said lid when closing performs a pivotal movement in respective loading and lifting stages, said lid including at least one stop element, said lid in said loading stage being pivoted towards said turntable, during which said disc loader urges the disc against said turntable, in said lifting stage consecutive to said loading stage said lid being pivoted away from said turntable by said resilient means into a final position in which said lid is positioned by said stop means, in said final position of said lid said disc loader being clear of the disc, and in which said latch which is movable relative to said chassis, moves to a position in the pivotal path of said stop element, and inhibits a return to said loading stage.
Claim 3
Dependent Claim 297 words
A disc player for a rigid information-carrying disc, said player comprising a turntable which is mounted for rotation on a chassis and a lid for closing the player, said player including resilient means coupled to said lid, stop means, a latch, and a latching plate; said lid being pivotally connected to said chassis, said player including a disc loader carried by said lid, said loader when said lid is pivoted toward said turntable, acts resiliently on said turntable, said lid when closing performs a pivotal movement in respective loading and lifting stages, said lid including at least one stop element, said lid in said loading stage being pivoted towards said turntable, during which said disc loader urges the disc against said turntable, in said lifting stage consecutive to said loading stage said lid being pivoted away from said turntable by said resilient means into a final position in which said lid is positioned by said stop means, in said final position of said lid said disc loader being clear of the disc, and in which said latch which is movable relative to said chassis, moves to a position in the pivotal path of said stop element, and inhibits a return to said loading stage, said player further including a latching member and a carrier pivotally connected to said chassis, said carrier in said loading stage being pivoted with said lid toward said turntable, said carrier carrying said latch plate which at the end of said loading stage is latched by said latching member, said latching member being connected to said chassis, said carrier comprising a part of said stop means which in a latched position of said carrier limit the pivotal movement of said lid in said lifting stage and keeps said lid in said final position.
Claim 4
Dependent Claim 297 words
A disc player for a rigid information-carrying disc, said player comprising a turntable which is mounted for rotation on a chassis and a lid for closing the player, said player including resilient means coupled to said lid, stop means, a latch, and a latching plate; said lid being pivotally connected to said chassis, said player including a disc loader carried by said lid, said loader when said lid is pivoted toward said turntable, acts resiliently on said turntable, said lid when closing performs a pivotal movement in respective loading and lifting stages, said lid including at least one stop element, said lid in said loading stage being pivoted towards said turntable, during which said disc loader urges the disc against said turntable, in said lifting stage consecutive to said loading stage said lid being pivoted away from said turntable by said resilient means into a final position in which said lid is positioned by said stop means, in said final position of said lid said disc loader being clear of the disc, and in which said latch which is movable relative to said chassis, moves to a position in the pivotal path of said stop element, and inhibits a return to said loading stage, said player further including a latching member and a carrier pivotally connected to said chassis, said carrier in said loading stage being pivoted with said lid toward said turntable, said carrier carrying said latch plate which at the end of said loading stage is latched by said latching member, said latching member being connected to said chassis, said carrier comprising a part of said stop means which in a latched position of said carrier limit the pivotal movement of said lid in said lifting stage and keeps said lid in said final position.
Claim 5
Dependent Claim 78 words
A disc player as claimed in claim 2 wherein said latching member carries said latch and in said loading stage of said lid is moved away from said carrier by pivotal movement of said latching plate towards said turntable, said latch being moved to a waiting position, and after said loading stage said latching member being reset under spring force, said latch being moved under said stop element inhibiting a return of said lid to said loading stage.
Claim 6
Dependent Claim 31 words
A disc player as claimed in claim 3 wherein said latching member is pivotally mounted on said chassis, said latch pivots under spring force to the position under said stop element.
Claim 7
Dependent Claim 35 words
A disc player as claimed in claim 4 wherein said latch is constructed as an element which deflects resiliently relative to said latching member and which is constructed as a slide disposed on said chassis.
Claim 8
Dependent Claim 25 words
A disc player as claimed in claim 5 wherein said latching member is provided with a button for releasing said carrier and opening said lid.
Claim 9
Dependent Claim 63 words
A disc player as claimed in claim 6 wherein said latch comprises first and second opposed walls, said first wall keeping said latching plate of said carrier latched during said lifting stage of said lid and said second wall, which is disposed in the pivotal path of said stop element of said lid, inhibiting a return of said lid to said loading stage.
Claim 10
Dependent Claim 84 words
A disc player as claimed in claim 7 wherein said latching plate on said carrier comprises a pivotal plate which keeps said latch of said latching member in the waiting position via a wall portion during a part of said loading stage and at the end of said load stage is pivoted against spring force towards a pivoted position by said stop element on said lid, so that said latch moves to a position under said stop element and said carrier is latched thereby.

References Cited (Backward Citations)

US3223422A Cited
JPS5276013A Cited
US4098511A Cited
US4124866A Cited
US4416003A Cited
EP0076583A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-02-05 1988-08-06 1989-02-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-02-05 1992-08-06 1993-02-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-02-05 1996-08-06 1997-02-05 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag