发明名称 Film cartridge producing method
摘要 When shaping a film cartridge having a hollow cylindrical shell and caps mounted on ends of the shell, a shell plate is brought into abutment with a mandrel having a perfectly circular cross section and bent around the mandrel by a bending roller. A cap is mounted on an end of the hollow cylindrical shell while it is on the mandrel, and the cap is clinched to the hollow shell while the cap and the hollow shell are grasped from the outside.
申请公布号 US5159747(A) 申请公布日期 1992.11.03
申请号 US19910746146 申请日期 1991.08.14
申请人 FUJI PHOTO FILM CO., LTD. 发明人 ICHIKAWA, HARUO;IIDA, SANPEI;TAKAHASHI, KOICHI
分类号 B21D39/00;B21D51/26;G03C3/00 主分类号 B21D39/00
代理机构 代理人
主权项
地址