Title: Roll film winding mechanism

Abstract: 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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Inventors: Ohashi, Katsuaki (Shiki, JA)
Monde, Hirao (Tokyo, JA)

Application Number: 626313
Filing Date: 1975-10-28
Publication_date: 1976-09-07
Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha (JA)
Primary Class(es): 242/417.3 242/530.2, 242/615.1
Other Classes:
US Patent Ref:

2353044	Jul, 1944	Kriegsheim	242/71.
2521932	Sep, 1950	Mihalyi	242/71.
2566267	Aug, 1951	Wallace	354/214.

Other Refs:
Primary Examiner: McCarthy, Edward J.
Assistant Examiner:
Attorney: McNenny, Pearne, Gordon, Gail, Dickinson & Schiller