Film threading apparatus

Patent

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Details

354173, G03B 120

Patent

active

043975356

ABSTRACT:
In a camera, a film threading apparatus operates to feed a film leader extending out of a film cassette from a supply chamber to a take-up chamber. The film cassette is loaded in the supply chamber with the film leader positioned in a film passageway between the supply and take-up chambers. A film threading member is located adjacent the leader, with a non-film engagable section of the threading member confronting, though spaced from the leader. When a camera door is closed, a drive mechanism causes the threading member to be revolved, moving a film engagable section of the threading member to engage and advance the film leader to a film capturing mechanism in the take-up chamber. The threading member is stopped with its non-engagable section again confronting the film leader to prevent the threading member from interfering with subsequent film advance.

REFERENCES:
patent: 3463071 (1969-08-01), Winkler et al.
patent: 3465658 (1969-09-01), Hackenberg
patent: 3481260 (1969-12-01), Ettischer et al.
patent: 3581640 (1971-06-01), Kimura
patent: 3638547 (1972-02-01), Sekida
patent: 4222648 (1980-09-01), Beaver

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