Safety device for the electric shutter of a camera

Details Safety device for the electric shutter of a camera Safety device for the electric shutter of a camera

1976-06-16

1978-06-20

Hix, L. T.

354242, 354268, G03B 900, G03B 1738

Patent

active

040965031

ABSTRACT:
In the electric shutter of a camera having a forward curtain restraining member for restraining a forward shutter curtain in charged condition, a rearward curtain restraining member for restraining a rearward shutter curtain in charged condition with the aid of the attraction of a magnet, and an anticipatory actuation member starting to move prior to the movement of the forward shutter curtain, a safety device is provided with forward curtain control means which is displaceable to a position to release the forward shutter curtain from restraint by utilizing movement of the anticipatory actuation member and which, when the magnet is unattracted, is displaceable to a position to render the forward shutter curtain unreleasable from restraint by utilizing movement of the rearward curtain restraining member.

REFERENCES:
patent: 3768390 (1973-10-01), Kobori
patent: 3906532 (1975-09-01), Kuramoto et al.
patent: 3922693 (1975-11-01), Matsui
patent: 3930263 (1975-12-01), Urano
patent: 3955209 (1976-05-01), Akiyama

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