Film guide for guiding film leader over metering sprocket in cam

Details Film guide for guiding film leader over metering sprocket in cam Film guide for guiding film leader over metering sprocket in cam

1997-06-19

1999-07-27

Lee, Eddie C.

Photography

With film drive

Mechanical detail

396440, 396535, G03B 100, G03B 1700

Patent

active

059305410

ABSTRACT:
A camera comprising a cartridge receiving chamber for a film cartridge with a filmstrip including a film leader, a film takeup chamber, a backframe opening located between the cartridge receiving chamber and the film take-up chamber, a metering sprocket for engaging the filmstrip, and a film slit between the cartridge receiving chamber and the backframe opening to permit the film leader to be longitudinally inserted through the film slit from the cartridge receiving chamber across the backframe opening and to the film take-up chamber when the film cartridge is placed in the cartridge receiving chamber, is characterized in that a film guide is supported for movement in a first direction relative to the metering sprocket to be able to guide the film leader over the metering sprocket when the film leader is inserted through the film slit from the cartridge receiving chamber across the backframe opening and to the film take-up chamber and for movement in a reverse direction relative to the metering sprocket to be able to permit the metering sprocket to engage the filmstrip.

REFERENCES:
patent: 3377936 (1968-04-01), Goshima et al.
patent: 3380361 (1968-04-01), Winkler
patent: 4397535 (1983-08-01), Harvey
patent: 4477162 (1984-10-01), Matsumoto
patent: 4530582 (1985-07-01), Hara et al.
patent: 5298930 (1994-03-01), Asakura et al.
patent: 5394213 (1995-02-01), Hazama et al.
patent: 5493358 (1996-02-01), Janson, Jr.

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