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. 27, 2014
Filed:
Dec. 25, 2009
Tomoatsu Iwasa, Toyota, JP;
Yoshichika Shimane, Toyota, JP;
Mizuki Imafuku, Toyota, JP;
Yuichi Usui, Kariya, JP;
Hideya Osawa, Chiryu, JP;
Yohei Takahashi, Nukata-gun, JP;
Tomoatsu Iwasa, Toyota, JP;
Yoshichika Shimane, Toyota, JP;
Mizuki Imafuku, Toyota, JP;
Yuichi Usui, Kariya, JP;
Hideya Osawa, Chiryu, JP;
Yohei Takahashi, Nukata-gun, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A vehicle differential device having a differential case rotatably supported via a bearing by a housing and a drive shaft inserted into the differential case, including an oil sump member on the opposite side of the differential case to the bearing, the oil sump member including an insert hole into which the drive shaft is inserted, and an oil supply channel formed higher than the drive shaft in the vertical direction, wherein at least a portion of the insert hole is formed with a gap between the insertion hole and the drive shaft wider than that on the vertically lower side of the rotational axis of the drive shaft, the oil sump member includes a discharge hole allowing oil to flow out toward the differential case if an oil level of an oil chamber formed between the oil sump member and an oil seal exceeds a predetermined height.