Locking device of a starting position searching mechanism

Details Locking device of a starting position searching mechanism Locking device of a starting position searching mechanism

1981-08-28

1984-01-10

Kilgore, Robert M.

Dynamic magnetic information storage or retrieval

Miscellaneous

360 721, G11B 1518, G11B 1700, G11B 1902

Patent

active

044255950

ABSTRACT:
A locking device for locking a starting position searching mechanism which comprises a slide plate for sliding when being pushed by a fast-forwarding operational rod or rewinding operational rod and a limit switch which is actuated by the slide plate. The fast-forwarding operational rod and the rewinding operational rod are formed with notches at the top ends with which the top end of an off plate is engageable, the off plate is slidably connected to the lock plate, a spring is provided between the off plate and the lock plate for pulling them so as to shorten their total length, an electromagnetic plunger is provided at the base end of the lock plate for attracting the lock plate together with the off plate and the electromagnetic plunger is to be energized by the limit switch.

REFERENCES:
patent: 4176383 (1979-11-01), Suzuki
patent: 4228472 (1980-10-01), Magata
patent: 4323935 (1982-04-01), Koizumi

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