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:
Dec. 30, 2025
Filed:
Feb. 25, 2022
Musashi Seimitsu Industry Co., Ltd., Toyohashi, JP;
Ryosuke Asai, Toyohashi, JP;
Naofumi Butta, Toyohashi, JP;
Musashi Seimitsu Industry Co. Ltd., Aichi, JP;
Abstract
Provided is a transmission device in which pinion and a large diameter gear each comprise a helical gear and are arranged such that an oil on a tooth surface is pushed from a mutual meshing portion to one side in an axial direction of the pinion during the forward rotation of the large diameter gear, and a fluid restriction wall configured to oppose the oil pushed from the meshing portion to the one side in the axial direction is arranged adjacent to an end face of teeth of the pinion on the one side in the axial direction, the fluid restriction wall being formed in a shape that allows a tooth tip portion of the end face to be covered.