Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Tape record
Patent
1976-04-14
1977-06-21
Eddleman, Alfred H.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Tape record
242199, 360 74, 360105, G11B 1510, G11B 1524, G11B 1544, G11B 2304
Patent
active
040315568
ABSTRACT:
In a mode changeover apparatus for a magnetic recorder/player having a plurality of push-buttons for directing changeover of tape drive modes, a simple and compact mechanism for effecting mode changeover including an eccentric idler, a restraining mechanism, a locking mechanism, an engaging mechanism a locking member, a lever, a releasing mechanism and a holding mechanism. The idler is mounted on a slidable support, and can be rotated through a capstan wheel which is driven by a motor. The support carries a magnetic head, and can be moved by the rotation of the idler. The restraining mechanism restrains the support to a reproduction position. The support is moved to a non-reproduction position through the engaging mechanism and is locked there by the locking mechanism. The releasing mechanism releases the support from the non-reproduction locking. The idler is locked to a state that its smallest radius portion confronts the capstan wheel by the locking member. A small gap can be left between this smallest radius portion and the capstan wheel by the holding mechanism. The idler can be brought into rotating relationship with the capstan wheel by the lever which temporarily releases locking engagement for the idler.
Alternatively, a slidable bar, a lever pivoted to an end of the bar, electric switches and a control circuit for a motor are provided. One of the switches is operated by the movement of the bar to shut off and allow current supply for the motor. The other switches are operated by the movement of the lever to control the rotational direction and speed of the motor through the control circuit.
REFERENCES:
patent: 3305187 (1967-02-01), Atsumi
patent: 3609844 (1971-10-01), Ichikawa
patent: 3653669 (1972-04-01), Sterly
patent: 3747941 (1973-07-01), VAN DER Lely
patent: 3834651 (1973-09-01), Hashizume
patent: 3887943 (1975-06-01), Katsurayama
patent: 3940792 (1976-02-01), Herleth
Ban Itsuki
Mochizuki Kazunori
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