发明名称 |
Roll film winding mechanism |
摘要 |
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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申请公布号 |
US3979079(A) |
申请公布日期 |
1976.09.07 |
申请号 |
US19750626313 |
申请日期 |
1975.10.28 |
申请人 |
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
OHASHI, KATSUAKI;MONDE, HIRAO |
分类号 |
G03B1/02;B65H19/28;G03B17/26;G03B17/28;G03B17/30;(IPC1-7):B65H23/10 |
主分类号 |
G03B1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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