Photo film take-up spool and shaft

A take-up spool is adapted to taking up photo film from a photo film cassette having the photo film, and is incorporated in a lens-fitted photo film unit. The take up spool has a core (53) having a substantially cylindrical shape. A nip device (52) is disposed inside the core, and nips a leader (26b...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAZAKI, TAKESHI, KUMAMOTO, SYUNJI, NOJI, FUMIO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS
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Beschreibung
Zusammenfassung:	A take-up spool is adapted to taking up photo film from a photo film cassette having the photo film, and is incorporated in a lens-fitted photo film unit. The take up spool has a core (53) having a substantially cylindrical shape. A nip device (52) is disposed inside the core, and nips a leader (26b) in removable fashion. The core is rotated with the leader, to wind the photo film in a roll form (26a). At least one curved face (53c) is formed between the inside of the core and a cylindrical face of the core and at a radius of curvature 0.4-0.85 times as long as a radius of the core, and prevents the leader secured to the shaft body from being sharply bent.