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:
Oct. 14, 2014
Filed:
Jun. 21, 2011
Naoki Nishioka, Tsu, JP;
Yusuke Kataoka, Tsu, JP;
Satoshi Tanaka, Tsu, JP;
Shigeki Asano, Tsu, JP;
Nabtesco Corporation, Tokyo, JP;
Abstract
A gear transmission includes an eccentric-oscillating-type first reduction gear unit having a first internal gear, a first crankshaft with at least one first eccentric body defined thereon, a first input gear fixed to the first crankshaft and a first output member, as well as an eccentric-oscillating-type second reduction gear unit disposed coaxially with the first reduction gear unit and surrounding the first reduction gear unit. The second reduction gear unit has a second internal gear, a second crankshaft with at least one second eccentric body defined thereon, a second input gear fixed to the second crankshaft and a second output member. The first output member is engaged with the second input gear. Further, the first internal gear is disposed, in the axial direction of the gear transmission, between the second input gear and the at least one second eccentric body.