Three position switch and switching device for a magnetic-tape-c

Details Three position switch and switching device for a magnetic-tape-c Three position switch and switching device for a magnetic-tape-c

1985-01-16

1987-04-07

Pellinen, A. D.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

200 6B, 200DIG34, 360105, H01H 920

Patent

active

046563210

ABSTRACT:
An electrical switch on a chassis of a magnetic-tape-apparatus has a switching lever movable between a center switch open position, an unstable switched closed position to one side of center, and a stable switched closed position to the other side of center, with an over-center position between the center and stable closed positions. Spaced projections on a head-mounting plate engage the lever during movement between a playing position and a stop/ejection position, so as to cause the lever to move between the center and the stable closed position. With the plate in the stop/ejection position, an actuating rod can pass between the projections to move the lever to the unstable closed position and hold it in that position. When the plate is in the playing position, clearance of the projections from the lever is such that the plate can move a certain distance, for example for fast winding, without engaging the lever.

REFERENCES:
patent: 2481368 (1949-02-01), Tiffany et al.
patent: 3248508 (1966-04-01), Pastorel

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