发明名称 CARTRIDGE FOR PHOTOGRAPHING FILM
摘要 PURPOSE:To allow smooth delivery of the rolled photographic film wound on a supply spool by providing a rotating body which comes into rolling contact with the outermost periphery of the film into a cartridge body. CONSTITUTION:The rotating body 5 which comes into rolling contact with the outermost periphery of the film F wound on the supply spool 4 or a projection which comes into contact with the outermost periphery of the film F in a small area is provided in the cartridge body 2. The outermost periphery F0 of the film F, therefore, has only the rolling contact with the roller part 5a of a roller shaft 5 and the contact in the small area with the projecting part 3b of the cartridge body 2 and the contact with the projecting part 2b of the cartridge body 2 in the very small area when the spool 4 is rotated in the film delivery direction. The friction force against the rotating in the delivery direction decreases. The film F is smoothly delivered in this way while the film is spread under winding.
申请公布号 JPH0267543(A) 申请公布日期 1990.03.07
申请号 JP19880220050 申请日期 1988.09.01
申请人 CANON INC 发明人 TSUJIMOTO SHINICHI;IWASHITA NORIYOSHI
分类号 G03B17/00;G03B17/30;G03C3/00 主分类号 G03B17/00
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