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. 28, 2021
Filed:
Jul. 11, 2019
Nidec Sankyo Corporation, Nagano, JP;
Satoru Yokoe, Nagano, JP;
NIDEC SANKYO CORPORATION, Nagano, JP;
Abstract
Provided is a valve drive device including a power transmission switching unit capable of reducing noise and suppressing a tilting of a pivot shaft to perform smooth power transmission switching. In the valve drive device including a valve element drive mechanism, the valve element drive mechanism includes a motor, a driving gear, a driven gear, and a power transmission switching unit configured to switch between a power transmission state and a power non-transmission state. The power transmission switching unit includes at least one convex unit formed on the driving gear, and a rotation restriction unit that is pivotably mounted on the driven gear with respect to the driven gear and engageable with the at least one convex unit. The rotation restriction unit includes a pivot shaft, a lever unit, and a foot unit.