Film transporting mechanism

Details Film transporting mechanism Film transporting mechanism

1977-08-24

1979-05-01

Griffin, Donald A.

G03B 1750

Patent

active

041520572

ABSTRACT:
A film transporting mechanism for an instant picture camera is described. Such cameras use film packs of the type having a cassette provided with a film window and a discharge slot in one of its end walls through which exposed film sheets are expelled. The film transporting mechanism has a pair of film transporting rollers which form a nip and are so located that the nip is adjacent the discharge slot when the camera is loaded with a film pack. Members are provided which can enter the cassette through the film window in the region of the other end wall to frictionally engage a film sheet behind the window. A motion-transmitting arrangement, when actuated by an input member, moves the members towards the film transporting rollers. At the same time it first moves them through the window into contact with the film sheet so that they advance the same towards the discharge slot; after the members (and the film sheet) have travelled part-way towards the rollers (so that a leading end of the film sheet enters the nip), the members are lifted out of engagement with the film sheet which is then withdrawn by the rollers.

REFERENCES:
patent: 2496630 (1950-02-01), Land
patent: 3872485 (1975-03-01), Asano
patent: 3965480 (1976-06-01), Eloranta

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