Vehicle having front and rear steerable driven wheels

Motor vehicles – Having four wheels driven – With means for steering all driven wheels

Reexamination Certificate

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Details

C180S242000

Reexamination Certificate

active

06926111

ABSTRACT:
A vehicle, comprising a prime mover, a steering operation device, a first transaxle apparatus disposed at one of front and rear portions of the vehicle, and a second transaxle apparatus disposed at the other of front and rear portions of the vehicle. The first transaxle apparatus supports a pair of right and left first axles, and a pair of right and left first wheels are attached to outermost ends of the respective first axles so as to be turned laterally according to manipulation of the steering operation device. A first differential gear unit of the first transaxle apparatus differentially connects the first axles to each other. The first transaxle apparatus supports a power take-off shaft. A transmission of the first transaxle apparatus is driven by the prime mover. Output force of the transmission is shared between the first differential gear unit and the power take-off shaft. The second transaxle apparatus supports a pair of right and left second axles, and a pair of right and left second wheels are attached to outermost ends of the respective second axles so as to be turned laterally according to manipulation of the steering operation device. A second differential gear unit of the second transaxle apparatus differentially connects the second axles to each other. The second transaxle apparatus supports an input shaft of the second differential gear unit. A power-transmitting member is interposed between the power take-off shaft and the input shaft so as to transmit the output force of the transmission to the second wheels.

REFERENCES:
patent: 3351147 (1967-11-01), Williamson
patent: 4715466 (1987-12-01), Ishii et al.
patent: 6336513 (2002-01-01), Hasegawa et al.
patent: 2001/0050188 (2001-12-01), Ima
patent: 2003/0205427 (2003-11-01), Ima
patent: 2004/0079563 (2004-04-01), Ohashi
patent: 401218977 (1989-09-01), None
patent: WO 9746478 (1997-12-01), None

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