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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.:

US 12123484 B1

PDFFull Text
Date of Patent:
Oct. 22, 2024

Filed:

Nov. 08, 2023

Power transmission device

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Shin Kurosaki, Toki, JP;

Hiroki Monji, Toyota, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

SoraIP, Inc.

Primary Examiner:

Justin Holmes

Int. Cl.
CPC ...
F16H 37/08 (2006.01); F16H 48/08 (2006.01); F16H 48/10 (2012.01); F16H 57/037 (2012.01); B60K 6/365 (2007.10); B60K 7/00 (2006.01); B60K 17/16 (2006.01); F16H 48/06 (2006.01); F16H 57/02 (2012.01);
U.S. Cl.
CPC ...
F16H 37/082 (2013.01); F16H 48/08 (2013.01); F16H 48/10 (2013.01); F16H 57/037 (2013.01); B60K 6/365 (2013.01); B60K 2007/0092 (2013.01); B60K 17/16 (2013.01); F16H 48/06 (2013.01); F16H 2048/085 (2013.01); F16H 2048/087 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02052 (2013.01);
Abstract

The power transmission device includes a speed reducer and a differential. The speed reducer includes a sun gear fixed to a hollow input shaft, stepped pinions, first and second ring gears. The stepped pinion has input and output gears, with the input gear engaging the sun gear. A first ring gear is fixed to a housing and engages the input gear. The second ring gear engages the output gear. The differential has a differential housing and first and second output shafts. The differential housing is fixed to the second ring gear. The first and second output shafts are arranged concentrically with the input shaft and extend in opposite directions from the differential housing. One of the first output shaft and the second output shaft passes through the inside of the input shaft. The differential housing is positioned to be surrounded by the output gears of the stepped pinions.

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