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:
Feb. 12, 2013
Filed:
Aug. 03, 2007
Nobuaki Hoshino, Kariya, JP;
Masaki Ota, Kariya, JP;
Xiaoliang Wang, Kariya, JP;
Abstract
A power transmission mechanism that permits power to be transmitted from an external driving source to a rotary shaft of a rotating machine includes a first rotating body, a second rotating body, an armature, and a spring clutch. The spring clutch is wound about an outer circumference of the first rotating body and an outer circumference thereof is surrounded by the extended portion of the second rotating body. The spring clutch has a first end connected to the first rotating body, and the second end is connected to the armature. Supply of current to the electromagnetic coil causes the armature to adhere to the second rotating body. When the armature rotates, the diameter of the spring clutch is increased such that the spring clutch is pressed against the inner circumferential surface of the extended portion and the first rotating body and the second rotating body are coupled to each other.