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.

Date of Patent:
Apr. 01, 2003

Filed:

Nov. 19, 2001
Applicant:
Inventors:

Hirokatsu Amanuma, Saitama, JP;

Naoki Uchiyama, Saitama, JP;

Kenji Honda, Saitama, JP;

Taiji Maruyama, Saitama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 4/806 ; F16H 3/72 ; F16H 3/706 ;
U.S. Cl.
CPC ...
F16H 4/806 ; F16H 3/72 ; F16H 3/706 ;
Abstract

A power transmission mechanism for a front and rear-wheel drive vehicle in which the power of an electric motor is transmitted to rear wheels includes an output shaft adapted to rotate together with the electric motor, a middle shaft which is parallel with the output shaft, a drive shaft which is parallel with the output shaft and is adapted to rotate together with the rear wheels, a first pair of reduction gears for reducing the speed of rotation of the middle shaft relative to the output shaft, a second pair of reduction gears for reducing the speed of rotation of the drive shaft relative to the middle shaft and a rear differential disposed closer to an electric motor side than the second pair of reduction gears and coupled to the reduction gear and the drive shaft.


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