Normal/reverse mode changing mechanism for tape transport appara

Details Normal/reverse mode changing mechanism for tape transport appara Normal/reverse mode changing mechanism for tape transport appara

1989-11-14

1991-07-02

Wolff, John H.

Dynamic magnetic information storage or retrieval

Miscellaneous

360 741, G11B 1544

Patent

active

050290363

ABSTRACT:
A normal/reverse mode changing mechanism for a tape transport apparatus comprises a mode selecting lever, cam arrangement, and an electromagnet, and one of two tape running modes is selectively obtained due to changing the number of current pulses supplies to the electromagnet. The mode selecting lever has such a function as to move a plurality of controlling members, such as a drive gear engaged selectively with one of the reel base gears, and a lever, which can selectively press one of the two pinch rollers against the corresponding one of two capstans for controlling the direction in which the tape is running. The cam arrangement has such a function as to hold the mode selecting lever selectively in one of two positions: a first position for obtaining the first tape running mode by a combination of a first pinch roller and a first capstan, and a second position for obtaining the second tape running mode by another combination of a second pinch roller and a second capstan. The electromagnet has such a function as to control the angle of rotation of the cam arrangement and the position of the mode selecting lever.

REFERENCES:
patent: 4547823 (1985-10-01), Ri et al.
patent: 4831660 (1989-05-01), Koga et al.

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