Shutter blade device

Details Shutter blade device Shutter blade device

1993-11-03

1995-05-30

Gellner, M. L.

354250, G03B 940, G03B 910

Patent

active

054206545

ABSTRACT:
A shutter blade device having two arms, plural shutter blades and caulking pins for rotatably mounting the shutter blades to the arms is designed to secure the strength of the shutter blades, thereby enabling high-speed running motion. For this purpose, the shutter blades are formed planar, and the caulking pins are so caulked that the caulked portions protrude to the rear side of the shutter blades. Between the adjacent shutter blades, blades are so formed that the protruding portions of caulking always overlap with the adjacent shutter blade, regardless whether the blades are in the light-shielding position, in the exposure position or in the course of running therebetween.

REFERENCES:
patent: 4162840 (1979-07-01), Ooba et al.
patent: 4295726 (1981-10-01), Inoue
patent: 4373797 (1983-02-01), Shimada et al.
patent: 4382670 (1983-05-01), Hashimoto et al.
patent: 4975722 (1990-12-01), Suzuki et al.

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