Pinch roller drive mechanism and control circuit in open reel ty

Details Pinch roller drive mechanism and control circuit in open reel ty Pinch roller drive mechanism and control circuit in open reel ty

1980-07-16

1983-07-26

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Tape record

361166, G11B 1500

Patent

active

043957439

ABSTRACT:
A pinch roller drive mechanism and circuit for operating the pinch roller drive mechanism for an open reel type tape recorder utilizing a dual capstan system. Both the pause plunger and play plunger are actuated at the start of a playback or recording operation which swing pinch rollers into positions in abutment with corresponding capstans. To accomplish this, a play arm is slidably mounted and moved by an actuating rod of a play plunger. Coupling arms extend from one end of the play arm to a pair of pinch roller units upon which the pinch rollers are rotatably mounted. An actuating rod from the pause plunger rotates a pause arm which has one end in abutment with a pin rigidly coupled to a central portion of the play arm. A predetermined period of time after the play plunger is initially actuated, the pause plunger is released. The coupling arms each have a guide rod at the end thereof for pressing a loaded magnetic tape into a position in abutment with an erasing head.

REFERENCES:
patent: 3124722 (1964-03-01), Steiner
patent: 3456124 (1969-07-01), Frank
patent: 4144552 (1979-03-01), Sibalis

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