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:
Sep. 23, 2014
Filed:
Mar. 26, 2014
Nidec Copal Corporation, Tokyo, JP;
Kenta Kawakami, Saitama, JP;
Nidec Copal Corporation, Itabashi-Ku, Tokyo, JP;
Abstract
A focal plane shutter for a camera which is suitable for miniaturization and arranged to prevent wear debris from entering into a blade chamber via a base plate hole. Wall portions (and) are formed protruding towards the blade chamber side surface from edges of the elongated holes (and) provided in a base plate (). Rear blade-use arms (and) have step-like bent portions (and) formed therein so that a tip end side of the arms is positioned further toward the base plate () than the rotation center side. During operation, the bent portions (and) allow a small gap to be maintained between the wall portion () and the rear blade-use arms (and). The freedom in determining the layout is not restricted so that miniaturization of the device is possible and entry of debris into the blade chamber is suppressed.