Tape recorder

Details Tape recorder Tape recorder

1980-06-05

1983-02-08

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 75, 360 964, 360 60, G11B 2112, G11B 1504, G11B 554, G11B 1526

Patent

active

043731724

ABSTRACT:
A tape recorder comprises a control motor disposed separately of a tape driving motor and controlled by a control switch; a cam shaft to which the driving force of the control motor is transmitted; a head support plate for supporting a magnetic head, and a pinch roller or the like and which is movable between a first position in which the magnetic head is in contact with the magnetic tape and the tape is clamped between the pinch roller and the capstan shaft and a second position in which the magnetic head is not in contact with the tape and the tape is not clamped between the pinch roller and the capstan shaft; a biasing member for biasing the head support plate toward the first position; and a press cam secured to the cam shaft and to which a support plate is biased by the biasing force of the biasing member. The press cam, by its unitary rotation with the cam shaft, controls the position of the head support plate against the biasing force of the biasing member. The tape recorder further comprises a control cam secured to the cam shaft and coupled to the control switch to change over the control switch by unitary rotary rotation with the cam shaft and the press cam.

REFERENCES:
patent: 3833922 (1974-09-01), De Bell et al.
patent: 4134145 (1979-01-01), Motoyama
patent: 4149203 (1979-04-01), Kobayashi et al.
patent: 4224647 (1980-09-01), Umezawa et al.
patent: 4263626 (1981-04-01), Kobayashi
patent: 4263631 (1981-04-01), Takanashi

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