Shutter-control mechanism for photographic camera

Details Shutter-control mechanism for photographic camera Shutter-control mechanism for photographic camera

1977-09-07

1979-09-04

Gonzales, John

354187, 354204, G03B 1738

Patent

active

041666860

ABSTRACT:
A disk rigid with a member of a gear train for the control of a spring-loaded setting ring of a shutter, connected via a lost-motion coupling with a wind-up lever, is rotatably mounted on a camera housing alongside a focusing knob which controls the displacement of a lens mount linked with the housing through a bellows. The knob has a tubular stem accommodating a pushbutton which, through a pair of outwardly projecting lugs, rests on a surrounding leaf spring having a tongue that engages in a notch of the disk in the cocked position of the shutter. Depression of the pushbutton disengages the tongue from its notch to release the shutter; such depression may be blocked by an underlying stop in a collapsed position of the camera.

REFERENCES:
patent: 3398666 (1968-08-01), Mamiya et al.
patent: 3922693 (1975-11-01), Matsui

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