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:
May. 16, 2023
Filed:
Sep. 11, 2019
Musashi Seimitsu Industry Co., Ltd., Toyohashi, JP;
Ryosuke Asai, Toyohashi, JP;
Naofumi Butta, Toyohashi, JP;
Hoa Binh Nguyen, Toyohashi, JP;
Shiryu Kato, Toyohashi, JP;
Musashi Seimitsu Industry Co., Ltd., Aichi, JP;
Abstract
A transmission device is formed by combining a planetary gear-type reduction gear and a differential device, wherein at least one of first and second planetary gear portions in a two-stage planetary gear has gear teeth that receive a thrust load due to meshing with opposing gear, a power-transmission case formed by joining a carrier to a differential case is rotatably supported on a transmission case. A pivot shaft of the planetary gear has one end thereof on the first planetary gear portion side supported on the power-transmission case via a first bearing and the other end on the second planetary gear portion side supported on the power-transmission case via a second bearing, and the thrust loads on one side and on the other side in an axial direction are supported only by the first bearing among the first and second bearings. Thus, a wall portion of the power-transmission case pivotably supporting the second planetary gear portion is reduced in size in the radial direction, contributing to a reduction in size of the transmission case in the radial direction.