Title:
Off road vehicle steering systems
Document Type and Number:
WIPO Patent Application WO2005101945
Kind Code:
B1
Abstract:
A six wheeled vehicle with two front steerable wheels and four rear coaxial non-steerable left and right wheels pair driven by separate longitudinal shafts fitted with bevel gears of unequal diameter driving each wheel via an integral speed reduction/correction gearbox further driven by speed correcting hydraulic motors. The rear wheels are driven a speed which produces the same centre of curvature for the path of the vehicle as the driver-selected angles of the front wheels. A vehicle with individually driven wheels at least one of which is steerable where the speed of driven wheels and wheels angles are integrally controlled to produce a single centre of curvature for the path of the vehicle and where steerable wheels are driven by a gear train including a substantially vertical shaft allowing the wheel to be turned at least 180°. A gantry tractor consisting of plurality of four wheeled modules hitched together where the hitch angle can be controlled by a pair of actuators linking together the corners of the modules.
Inventors:
SPARK IAN JAMES (AU)
Application Number:
PCT/AU2005/000002
Publication Date:
June 22, 2006
Filing Date:
January 04, 2005
Export Citation:
Assignee:
SPARK IAN JAMES (AU)
International Classes:
A01B51/02; A01B69/00; B60D1/32; B60K17/30; B62D6/00; B62D7/00; B62D7/15; B62D9/00; B62D11/00; B62D11/24
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