Opening and closing device of a camera shutter mechanism

Details Opening and closing device of a camera shutter mechanism Opening and closing device of a camera shutter mechanism

1976-12-16

1979-03-20

Gellner, Michael L.

354226, 354266, G03B 936

Patent

active

041451325

ABSTRACT:
A camera shutter mechanism including a shutter opening member mounted for pivoting about a first axis between a closed position corresponding to a closed shutter and an open position corresponding to an open shutter, and a shutter closing member mounted for pivoting about a second axis between an open position corresponding to an open shutter and a closed position corresponding to a closed shutter. A movable driving member includes a coupling mechanism for releasably coupling the driving member to the shutter opening member to permit moving the shutter opening member by moving the driving member, and for releasing the shutter opening member from the driving member when the shutter opening member is moved from the open to the closed position. A first spring biases the driving member to move the shutter opening member from the closed to the opened position to initiate exposure, and a second spring biases the shutter closing member to move from the opened to the closed position to terminate exposure. A drive transmission lever mounted on the driving member is positioned for responding to movement of the shutter closing member to the closed position for returning the shutter opening member to the closed position.

REFERENCES:
patent: 3691923 (1972-09-01), Kitai
patent: 4054891 (1977-10-01), Onda et al.

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