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. 16, 2010
Filed:
Mar. 08, 2006
Kosuke Yamanaka, Kashiwara, JP;
Shiro Nakano, Osaka, JP;
Masami Naka, Yamatotakada, JP;
Tomoyasu Kada, Kaiduka, JP;
Kosuke Yamanaka, Kashiwara, JP;
Shiro Nakano, Osaka, JP;
Masami Naka, Yamatotakada, JP;
Tomoyasu Kada, Kaiduka, JP;
JTEKT Corporation, Osaka-Shi, Osaka, JP;
Abstract
A rotation transmitting apparatus comprises a first sun gear joined to a first shaft so as to rotate interlockingly, a second shaft arranged to the first shaft coaxially, a second sun gear joined to the second shaft so as to rotate interlockingly, a first planetary gear meshed with the first sun gear, a second planetary gear rotating with the first planetary gear and meshed with the second sun gear, and a carrier supporting the first and second planetary gears and arranged to be driven by a differential electric motor. In particular, the number of teeth of each of the first and second sun gears and the first and second planetary gears is determined so that the ratio of a torque applied to the second shaft to a torque applied to the first shaft ranges from 1:0.7 to 1:0.9.