Patent ID: 6079654
Filing Date: 2000-06-27
Classification: G03B,G03C

Abstract:
An apparatus for producing a roll photo film, said roll photo film including a spool having a cylindrical core and a slit formed to extend in an axial direction thereof, said slit having first and second inner faces, there being a push claw disposed on said first inner face, a light-shielding sheet having a front end portion and a rear end portion, said front end portion being inserted in said slit and retained by said push claw, and a photo filmstrip, a first end of said photo filmstrip being secured to one securing position on said light-shielding sheet, said photo filmstrip being wound about said core in a roll form with said light-shielding sheet, said roll photo film producing apparatus comprising:a position setter unit for rotationally setting said core in a predetermined rotational position before winding said photo filmstrip about said core, to orient said slit in one direction;an inserter unit for inserting said front end portion in said slit, wherein said position setter unit and said inserter unit are so preset as to direct said front end portion of said light-shielding sheet to said second inner face at an angle of 5-20.degree. therebetween; anda rotating unit for rotating said core to wind said photo filmstrip about said core.