Apparatus for lifting and lowering a linear tracking tone arm in

Details Apparatus for lifting and lowering a linear tracking tone arm in Apparatus for lifting and lowering a linear tracking tone arm in

1982-07-19

1984-09-04

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369245, G11B 2108, G11B 336

Patent

active

044701306

ABSTRACT:
A linear tracking tone arm having a stylus is pivotably mounted on a carriage slidably movable along a guide rod and has a hook extending in operative engagement with a pin on a swing arm slidably movable with the carriage along the guide rod. The guide rod is angularly movable about its own axis to turn the swing arm for lifting or lowering the linear tracking tone arm. A mechanism for turning the guide rod includes a solenoid, a plunger actuatable thereby, a cam pivotably movable by the plunger, and a rotation control arm coupled with the guide rod and held in engagement with the cam. The carriage supports thereon a guide frame for guiding a pin extending from the tone arm to cancel a tracking error when the stylus is led into the lead-out groove on a record disc.

REFERENCES:
patent: 3661397 (1972-05-01), Worth et al.
patent: 3675932 (1972-07-01), Rabinow
patent: 3830505 (1974-08-01), Rabinow
patent: 4171817 (1979-10-01), Iyeta
patent: 4356560 (1982-10-01), Ohnishi

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