发明名称 Film conveying apparatus
摘要 A film conveying apparatus has a first conveying device for contacting the peripheral surface of a roll film such as a rolled microfilm and rotating the roll film in a direction to advance the leading end edge of the film, and a second conveying device adapted to be urged against the surface of the film led out from the roll film and frictionally drive the film. The film conveying apparatus further has a device for temporarily releasing the pressure contact force of the second conveying device to the surface of the film to prevent oblique movement of the film. The first conveying device has a device for transmitting only the rotation in one direction to a drive shaft so as not to impart a friction load to the microfilm. Further, the first conveying device has its portion of contact with the film protruded to ensure the leading-out of the film.
申请公布号 US4817886(A) 申请公布日期 1989.04.04
申请号 US19870049167 申请日期 1987.05.13
申请人 CANON KABUSHIKI KAISHA 发明人 YOSHIOKA, KIYOHARU;ITO, MASAHIKO
分类号 B65H16/10;B65H23/035;G11B15/67;(IPC1-7):B65H16/00;G11B15/18 主分类号 B65H16/10
代理机构 代理人
主权项
地址