1978-09-26
1980-06-03
Griffin, Donald A.
354239, 354242, G03B 1738, G03B 964, G03B 932
Patent
active
042059100
ABSTRACT:
A control device for the shutter of a camera comprises an opening member for opening a shutter aperture to initiate taking of an exposure, a closing member for closing the aperture to complete the exposure, and opening and closing pawls for respectively retaining the opening and closing members at their charged position. A control member actuated during the shutter release motion releases the engagement of the opening pawl from the opening member, and a governor is provided for delaying the operation of the control member. An interlock lever is actuated by the opening member to release the engagement of the closing pawl from the closing member, and an exposure time setting cam is provided for adjustably setting the motion of the governor so as to shift the interlock lever between its working position and rest position. The interlock lever is positioned at its rest position when the exposure time setting cam is set to its high speed adjusting position so that the control member successively releases the opening pawl and the closing pawl while the interlock lever is positioned at its working position when the exposure time setting cam is set to its middle speed adjusting position so that the motion of the control member is delayed by the governor after the opening member is released from the opening pawl by the control member before the opening member actuates the interlock lever to release the closing member.
REFERENCES:
patent: 3825940 (1974-07-01), Hayami
patent: 3893143 (1975-07-01), Taguchi et al.
Nakagawa Tadashi
Nemoto Ichiro
Adams Bruce L.
Burns Robert E.
Griffin Donald A.
Lobato Emmanuel J.
Seiko Koki Kabushiki Kaisha
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