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:
Dec. 26, 2023
Filed:
Sep. 17, 2021
Nidec Copal Corporation, Tokyo, JP;
Koji Sawanobori, Tokyo, JP;
NIDEC COPAL CORPORATION, Tokyo, JP;
Abstract
A blade open-close device retains a blade at a predetermined position under an external load. A blade open-close device includes a base, a cover plate covering part of the base, and a blade located between the base and the cover plate. The blade is movable between a closing position to cover an opening in the cover plate and an opening position to uncover the opening. The blade open-close device further includes an actuator that moves the blade between the opening position and the closing position, a stopper movable between a lock position at which a protrusion on the stopper is on a path of the blade and an unlock position at which the stopper is entirely retracted from the path when the blade is at the opening position and when the blade is at the closing position, and a voice coil motor that moves the stopper from the lock position toward the unlock position.