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US4402071A Expired / Lapsed US ⏱️ 0.0 years remaining

Stationary record player

Assignee: Panasonic Holdings Corp
•
Filing: 1981-08-17
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Granted: 1983-08-30
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Expires: 2001-08-17
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Abstract

Abstract A stationary record player having a turn table and a pickup pivotally secured to the turn table, so as to trace, when rotated together with the turn table, the recording groove of a stationary record medium on which the record player as a whole is placed. The record player has various novel functions such as an automatic stopping function for automatically stopping the player when the play is finished with the record medium, an automatic returning function for automatically resetting the stylus to the starting position, a lift-stop function for automatically stopping the player when the latter is lifted up from the record medium a slide-stop function for automatically stopping the player when the latter is displaced laterally from the correct mounting position on the record medium, a pause state eliminating function for stopping the player when the latter in the pause state is lifted up from the record disc, and so forth. These functions are effective to prevent the unnecessary wear of the stylus and to protect the latter from any damaging external force. Further, the force required for turning the player into operation is derived from a motor for driving the turn table, so as to obtain an improved operability of the player. The playing performance of the player is further improved by an additional provision of an end repeat and optional repeat functions by means of which the playing is performed repeatingly over the full or a desired part of the record medium.

Inventors

  • 👤 Yasushi Okamura
  • 👤 Kiichiro Tanaka

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 23:46
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02; G11B3/10; G11B3/34; G11B3/40

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 222 words
A stationary record player having a record guide for engaging the periphery of a record disc provided on a carrier plate, a turn table disposed in said record guide, a pickup means attached to said turn table for tracing the recording groove of a record medium; a power train including a motor and pulley assembly for rotating said turn table, further comprising: (a) a detecting member disposed between said record guide and said turn table for providing a linear vertical movement when said record guide is in contact with said record medium; (b) a float disc mounted vertically movable beneath and coaxial with a pulley of said assembly, said float disc having a projection for engaging an aperture in said pulley; said float disc being vertically raised by said detecting member in the absence of a record disc in engagement with said record guide, whereby said projection extends through said pulley; (c) means for inhibiting the driving of said turn table, said means having an actuating arm disposed above said pulley for contacting said projection extending through said pulley whereby said turn table is stopped from rotating when said projection is not in said aperture; and (d) means for positioning said pickup into a non-engaging position above said record track in response to the contacting of said projection with said actuating arm.
Claim 2
Dependent Claim 222 words
A stationary record player having a record guide for engaging the periphery of a record disc provided on a carrier plate, a turn table disposed in said record guide, a pickup means attached to said turn table for tracing the recording groove of a record medium; a power train including a motor and pulley assembly for rotating said turn table, further comprising: (a) a detecting member disposed between said record guide and said turn table for providing a linear vertical movement when said record guide is in contact with said record medium; (b) a float disc mounted vertically movable beneath and coaxial with a pulley of said assembly, said float disc having a projection for engaging an aperture in said pulley; said float disc being vertically raised by said detecting member in the absence of a record disc in engagement with said record guide, whereby said projection extends through said pulley; (c) means for inhibiting the driving of said turn table, said means having an actuating arm disposed above said pulley for contacting said projection extending through said pulley whereby said turn table is stopped from rotating when said projection is not in said aperture; and (d) means for positioning said pickup into a non-engaging position above said record track in response to the contacting of said projection with said actuating arm.

References Cited (Backward Citations)

US3224782A Cited
US3193295A Cited
US3883146A Cited
US4118038A Cited
US4123065A Cited
US4232868A Cited
US4332023A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-08-29 1987-02-28 1987-08-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-08-29 1991-02-28 1991-08-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-08-29 1995-02-28 1995-08-30 $7700.00 Window Closed / Lapsed

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