Shutter brake mechanism

Details Shutter brake mechanism Shutter brake mechanism

1996-03-12

1997-09-02

Mathews, A. A.

Photography

Camera detail

Shutter

396484, G03B 940

Patent

active

056642474

ABSTRACT:
A durable brake mechanism comprises shutter blades; arms that support the shutter blades; drive pins, which are linked to the arms and cause the shutter blades to move by driving the arms; and brake levers, which contact the drive pins and apply a braking force against the motion of the drive pins. The brake levers have a hardness greater than a hardness of the drive pins that prevents damage to shutter blades and improves the durability of the shutter blades.

REFERENCES:
patent: 4657366 (1987-04-01), Tanabe et al.
patent: 4829329 (1989-05-01), Toyoda et al.
patent: 4847649 (1989-07-01), Toyoda et al.
patent: 5034765 (1991-07-01), Nemoto et al.

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