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:
Mar. 09, 1982
Filed:
Mar. 28, 1980
Koichi Daitoku, Tokyo, JP;
Hatsuo Sakamoto, Chiba, JP;
Nobuhiko Terui, Tokyo, JP;
Toshiaki Hozumi, Tokyo, JP;
Yoshio Sekine, Tokyo, JP;
Yukio Hyodo, Hiratsuka, JP;
Masanori Ichikawa, Tokyo, JP;
Masamichi Wada, Tokyo, JP;
Tsuyoshi Kudo, Tokyo, JP;
Manabu Nakamura, Kawasaki, JP;
Nobuaki Nakanishi, Kawasaki, JP;
Takeo Komai, Kawasaki, JP;
Yoshio Matsuzawa, Tokyo, JP;
Nippon Kogaku K.K., Tokyo, JP;
Abstract
A film rewind device in a camera in which a rewind coupling is automatically engaged with a cassette shaft in response to rewind operation has a rotatable member having a spiral groove on its peripheral wall portion and said rewind coupling at the end of the shaft thereof, the rotatable member being slidable in axial direction and rotatable by rewind operation, and a meshing member meshing with the spiral groove at the initial stage of the rewind operation to thereby slide the rotatable member in axial direction to cause the coupling to engage the cassette shaft. The mesh engagement between the meshing member and the spiral groove is released in axial direction when the coupling engages the cassette shaft, so that the meshing member comes to support the rotatable member so as to block the return of the rotatable member in axial direction.