Wheeled working machine

Details Wheeled working machine Wheeled working machine

2005-12-29

2009-08-11

Hurley, Kevin (Department: 3611)

Motor vehicles

Bodies

Reexamination Certificate

active

07571786

ABSTRACT:
A steering apparatus provided in a wheeled working machine according to the present invention includes mechanical steering means for steering front wheels in accordance with the operation of operating means by connecting the operating means to a link member for changing the direction of the front wheels so as to transmit a steering force, full-hydraulic steering means, having steering cylinders for respectively changing directions of the front and rear wheels, for steering at least one of the front and rear wheels by introducing hydraulic oil to predetermined steering cylinders in accordance with the operation of the operating means and a selected mode, and switching means for switching the means so as to selectively actuate one of the mechanical steering means and the full-hydraulic steering means.

REFERENCES:
patent: 3195913 (1965-07-01), Hallsworth
patent: 4016948 (1977-04-01), Kuester
patent: 4140199 (1979-02-01), Lester
patent: 5752578 (1998-05-01), Kellogg
patent: 6161638 (2000-12-01), Barthalow
patent: 7383906 (2008-06-01), Sewell
patent: 7419023 (2008-09-01), Mieger
patent: 2052085 (1972-04-01), None
patent: 5-39057 (1993-02-01), None

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