Apparatus for controlling film advancement in a camera

Details Apparatus for controlling film advancement in a camera Apparatus for controlling film advancement in a camera

1981-05-13

1983-04-12

Adams, Russell E.

354214, G03B 118

Patent

active

043796290

ABSTRACT:
An apparatus for controlling an electrically driven film transport mechanism includes a displacement member that controls a change-over switch for selecting either a film take-up mode or a film rewind mode, and first and second members for controlling the position of the displacement member. The first member, which is responsive to film tension, automatically causes the displacement member to select the film take-up mode at the end of film rewind, thereby halting the film transport mechanism. The second member has a first position at which it holds the displacement member in a film take-up selecting mode for film take-up, and has a second position which enables movement of the displacement member to a film rewind selecting mode. Upon initial film advancement to load a fresh roll of film into the camera, the second member is automatically returned to its first position.

REFERENCES:
patent: 4012755 (1977-03-01), Arai
patent: 4171892 (1979-10-01), Kozuki et al.
patent: 4299466 (1981-11-01), Harvey
patent: 4304480 (1981-12-01), Fukahori et al.
patent: 4306794 (1981-12-01), Fukahori et al.

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