Motor vehicles – Surface effect vehicles – Dynamic seal or fluid curtain
Patent
1984-02-08
1986-01-21
Cline, William R.
Motor vehicles
Surface effect vehicles
Dynamic seal or fluid curtain
180136, 280442, B62D 506
Patent
active
045652570
ABSTRACT:
A material handling implement is disclosed having a multi-mode steering system embodying the principles of the present invention. The implement includes an articulable frame having front and rear frame portions which can be selectively articulated by an articulating hydraulic motor operatively connected thereto. The implement further includes steerable front wheel assemblies mounted on the front frame portion which can be selectively steered by operation of a steering hydraulic motor. An electrical control network is provided whereby the operator of the implement may selectively choose either conventional front wheel steering or articulated steering only. Additionally, this system includes first and second rotational sensors respectively associated with the articulable frame and one of the steerable front wheels. The sensors are electrically joined with the control network of the system whereby the operator may further select combined or coordinated front wheel and articulated steering. By this arrangement, the mode of steering control for the implement can be readily selected as best suits the work operations being performed, thus greatly enhancing the versatility and the efficiency of the implement.
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Cline William R.
J. I. Case Company
Neils Peggy A.
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