Title: Rotary shutter mechanism

Abstract: A rotary shutter mechanism for use in a camera having a winding mechanism and a release mechanism includes a sector change-over mechanism which comprises a pair of substantially semicircular sectors mounted on respective drive shafts. One of these sectors which covers a picture-taking opening serves as a leading curtain and the other sector disposed 180.degree. out of phase with respect to the first sector serves as a trailing curtain. These sectors are individually rotatable through 180.degree. in one direction to effect a shutter operation. Thus, the sectors need not be returned to their original positions during each winding operation.

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Inventors: Kimura, Shuji (Tokyo, JA)
Ohmori, Sachio (Yokohama, JA)

Application Number: 436171
Filing Date: 1974-01-24
Publication_date: 1976-03-16
Assignee: Nippon Kogaku K.K. (Tokyo, JA)
Primary Class(es): 396/493
Other Classes:
US Patent Ref:

2274707	Mar, 1942	Kende et al.	354/262.
2537905	Jan, 1951	Mihalyi	354/262.
3272107	Sep, 1966	Bloemendal	354/254.
3425330	Feb, 1969	Noack et al.	354/253.

Other Refs:
Primary Examiner: Hix, L. T.
Assistant Examiner: Adams, Jr., Russell E.
Attorney: Fitzpatrick, Cella, Harper & Scinto