Asahi Kogaku Kogyo Kabushiki Kaisha

Hirao Monde

Katsuhiko Nomura

Katsuaki Ohashi

A camera winding mechanism for advancing the film and loading the shutter has a stop mechanism to prevent over rotation of the film sprocket shaft. In one embodiment a frictional brake ring mounted on the shaft engages a protrusion on the mirror charge lever to inhibit rotation of the sprocket when the film advance lever has reached the limit of travel. In a second embodiment, a pawl element is used to engage the protrusion.

Film winding mechanism

A roll film winding mechanism is provided for film of the type which is wound on a flanged winding spool with superposed liner paper for protection against light intrusion and accidental exposure. The winding mechanism includes a tension roller disposed between a support member for guiding the film and the spool. The tension roller is arranged to bias the film together with the liner paper to provide a controlled winding tension, and to inwardly curl the longitudinal edges of the film and liner paper toward the spool shaft as they are wound to assure a secure light seal.

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Tokyo, Japan

Hirao Monde