The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2001
Filed:
Sep. 04, 1998
Takeshi Yamazaki, Minami-Ashigara, JP;
Syunji Kumamoto, Minami-Ashigara, JP;
Fumio Noji, Minami-Ashigara, JP;
Fuji Photo Film Co., Ltd., Kanagawa-Ken, JP;
Abstract
A take-up shaft is adapted to taking up photo film from a photo film cassette having the photo film, and particularly used in a lens-fitted photo film unit. The photo film cassette includes a cassette spool on which the photo film is wound in a roll form. A cassette shell contains the cassette spool in rotatable fashion. The take-up shaft has a shaft body (,) having a substantially cylindrical shape. A nip device (,) is disposed inside the shaft body, and nips a leader (,) in removable fashion. The shaft body is rotated with the leader, to wind the photo film in a roll form (,). At least one curved face (,) is formed between the inside of the shaft body and a cylindrical face of the shaft body and at a radius of curvature 0.4-0.85 time as long as a radius of the shaft body, and prevents the leader secured to the shaft body from being sharply bent.