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:
Aug. 29, 2006
Filed:
Jun. 24, 2004
Makoto Nishiji, Kumagaya, JP;
Makoto Nishiji, Kumagaya, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Abstract
An internal gearis rotatably received within a housing(planetary carrierand case), and a sun gearis rotatably disposed on a circle located inside of and concentric with the internal gear. Planet gearswhich are carried within carrying openingsformed in a planetary carrierare disposed between the internal gearand the sun gearin meshing engagement with the internal gearand the sun gear. The internal gear, the sun gearand the planet gearseach have spherical gear teeth, and develops a thrust upon occurrence of a relative rotation therebetween. A couplingis connected to the inner periphery of the internal gearthrough helical splinesandfor purpose of power transmission. The helical splines provide a novel thrust generating mechanism, which enlarges the extent in which a bias ratio can be adjusted.