Photo film spool and mold set for forming the same

Details Photo film spool and mold set for forming the same Photo film spool and mold set for forming the same

1997-03-20

1998-05-26

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

With material end retainer

2423481, 2426131, 396512, B65H 7528

Patent

active

057553963

ABSTRACT:
A spool core for winding photo film has two disk-like portions about which lateral edges of the photo film is wound. A claw support plate is disposed between the two disk-like portions, and has a substantially flat top face. Two claws are disposed to project from the top face, and retain a trailer of the photo film. Two pressing portions are disposed over the claw support plate, press the trailer against the claw support plate. First and second sector plates are disposed to project from a bottom face of the claw support plate, and have an arc-like edge. The photo film is wound to cover the arc-like edge. First and second plates are disposed between the sector plates and the disk-like portions, and project erectly from the bottom face of the claw support plate. An edge projection is disposed on an edge of the first and second plates, and satisfies a condition:

REFERENCES:
patent: 5555067 (1996-09-01), Yago et al.
patent: 5564643 (1996-10-01), Kaya

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