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Optical Systems

Film-feeding-apparatus

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Film feeding apparatus

Details

Inventors: Sashida, Minoru; Yanagi, Masaaki; Okitsu, Katsuhiko; Higuchi, Hirokazu;
Assignee: Canon Kabushiki Kaisha (Tokyo, JP)
Primary Examiner: Cuchlinski, Jr.; William A.
Assistant Examiner: Dowling; William C.
Attorney, Agent or Firm: Fitzpatrick, Cella, Harper & Scinto

A film feeding apparatus which feeds a film wound on a supply reel to a take-up means and rewinds the film on the supply reel, comprising: a driving shaft for removably receiving and holding the supply reel on which the film is wound and for rotating the reel; a driving means for rotating the driving shaft in a normal or reverse direction; a judging means for judging a rewinding direction of the film wound on the reel held by the driving shaft; and a control means for controlling the driving means to change a rotational direction of the driving shaft in response to the rewinding direction judged by the judging means, when the film is rewound.

DETAILED DESCRIPTION The present invention aims to eliminate the above-mentioned conventional drawbacks, and, therefore, an object of the present invention is to provide a film feeding apparatus which is applicable to readers having any mirror arrangements including not only the even number of mirrors but also the odd number of mirrors.
Another object of the present invention is to provide a film feeding apparatus wherein the feeding and rewinding of the film wound on a real can be performed positively.
In order to achieve the above objects, the present invention provides a film feeding apparatus wherein a film is fed out from a film roll wound on a removable reel and the film can be rewound on the reel by rotating the reel, comprising means for changing over the rotational direction of the reel when the film is rewound.
With the arrangement as mentioned above, in the present invention, when the film is rewound on the reel, the reel can be rotated either in a clockwise direction or in an anti-clockwise direction.
Accordingly, even if the reel is loaded either with the normal condition or with the turned-over condition, the film can be rewound without fail.

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