Lens-fitted photographic film unit having shutter with connectio

Details Lens-fitted photographic film unit having shutter with connectio Lens-fitted photographic film unit having shutter with connectio

1995-11-17

1998-02-24

Blankenship, Howard B.

Photography

Having means to reflect image to film

396 6, 396493, 396500, 396501, G03B 1500, G03B 910, G03B 920

Patent

active

057219958

ABSTRACT:
In a lens-fitted photographic film unit, a connection lever makes one reciprocating movement when struck by a shutter actuating lever. The reciprocating movement of the connection lever is transmitted to a crank lever to a pair of shutter blades to cause the shutter blades to open and then close a shutter aperture. The connection lever is coupled to the crank lever through a connection pin and a cam slot. The cam slot has an actuating portion and a keeping portion. While the connection pin moves along the actuating portion, the movement of the connection lever is transmitted to the shutter blades through the crank lever to open and close the shutter aperture. While the connection pin moves along the keeping portion, the movement of the connection lever is not transmitted to the shutter blades so that the shutter blades are kept in the opened position.

REFERENCES:
patent: 4283129 (1981-08-01), Bennick, Jr.
patent: 5084719 (1992-01-01), Hara et al.
patent: 5225864 (1993-07-01), Hargrave
patent: 5381200 (1995-01-01), Takagai

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