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Patent Searching and Data


Title:
HYDRAULIC AXLE-DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2004/062956
Kind Code:
A1
Abstract:
An axle drive device (2) is suspended so as to be swingable about the center axis for swing, or the axis in a forward-backward direction of a motor-vehicle frame. The device is constructed from a hydraulic drive unit (20) and a left and right pair of wheel support units (2L, 2R). The hydraulic drive unit (20) is formed by the combination of a left and right pair of hydraulic motors (23L, 23R) with motor shafts (23b) in a left/right horizontal direction, a center section (22) in which an oil passage for hydraulically connecting at least one of the motors to a hydraulic pump is formed and on which motor installation surfaces to which the hydraulic motors are installed are formed, and a left and right pair of axle cases (2L, 2R) for receiving respectively the left and right hydraulic motors and for supporting each of the motor shafts. The pair of the wheel support units (2L, 2R) supports respectively a left and a right travel wheel (12L, 12R), joined respectively to outer end surfaces of the left and right axle cases, and connected for power to each of the motor shafts (23b).

Inventors:
IWAKI KOJI (JP)
ISHII NORIHIRO (JP)
SAKIKAWA SHIGENORI (JP)
MIZUKAWA KATSUMOTO (JP)
KAWAKAMI MANABU (JP)
NAGATA KENTARO (JP)
Application Number:
PCT/JP2003/016635
Publication Date:
July 29, 2004
Filing Date:
December 24, 2003
Export Citation:
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Assignee:
KANZAKI KOKYUKOKI MFG CO LTD (JP)
IWAKI KOJI (JP)
ISHII NORIHIRO (JP)
SAKIKAWA SHIGENORI (JP)
MIZUKAWA KATSUMOTO (JP)
KAWAKAMI MANABU (JP)
NAGATA KENTARO (JP)
International Classes:
B60K17/04; B60K17/10; B60K17/356; B62D7/18; B62D9/00; B62D11/00; F16H39/14; (IPC1-7): B60K17/10; B60K17/04; B60K17/30
Foreign References:
JPS55132325A1980-10-15
JPS55142335U1980-10-11
JPS644514A1989-01-09
JPS644519A1989-01-09
JPS5557671A1980-04-28
JPH0612156U1994-02-15
JPS62202429U1987-12-24
JPH08225024A1996-09-03
US6135231A2000-10-24
JPH07156676A1995-06-20
JPS60116567A1985-06-24
JP2000168381A2000-06-20
Other References:
See also references of EP 1584510A4
Attorney, Agent or Firm:
Yano, Juichiro (Twin 21 MID Tower 34th Floor 1-61, Shiromi 2-chome, Chuo-k, Osaka-shi Osaka, JP)
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