Camera having improved mechanism for shutter actuation and film

Details Camera having improved mechanism for shutter actuation and film Camera having improved mechanism for shutter actuation and film

1977-06-28

1978-08-08

Hix, L. T.

354234, 354267, G03B 1742, G03B 1738

Patent

active

041060407

ABSTRACT:
A camera of the type in which the shutter actuator is operated by means of an electromagnet or a permanent magnet associated with a solenoid has a film winding mechanism and a shutter tensioning mechanism operatively connected with each other through an improved interconnecting mechanism which includes a cam arrangement and a switching arrangement for the electromagnet or the solenoid. The cam arrangement is constructed as having complementary camming surfaces to facilitate the minimization of dimensions of the interconnecting mechanism. During the film winding or shutter tensioning operation, the electromagnet or the solenoid is rendered inoperative or operative respectively by the switching arrangement to thereby reduce the torque of a single operating member for the film winding and shutter tensioning mechanisms.

REFERENCES:
patent: 3645182 (1972-02-01), Kimura
patent: 3646867 (1972-03-01), Ono
patent: 3650193 (1972-03-01), Shimizu
patent: 3688674 (1972-09-01), Kuramoto et al.
patent: 3698304 (1972-12-01), Tenkumo
patent: 3724351 (1973-04-01), Matsumoto
patent: 3812510 (1974-05-01), Aizawa et al.

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