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. 29, 2016
Filed:
Sep. 29, 2014
Panasonic Corporation, Osaka, JP;
Dai Shintani, Osaka, JP;
Abstract
A shutter device includes a leading drive lever configured to move leading blades to a closed position at which the leading blades cover an opening and to move the leading blades to an open position at which the leading blades open the opening; a leading charge mechanism configured to rotate a leading charge lever in a charge direction to generate biasing force and to rotate, using the biasing force of the leading drive spring, the leading charge lever in a drive direction to rotate the leading drive lever in an opening direction; a leading lock lever configured to lock the leading charge lever having rotated in the charge direction; a leading attractive unit configured to hold, using electromagnetic force, the leading lock lever locking the leading charge lever; and a leading biasing mechanism configured to bias the leading lock lever in a release direction.