Truck with steerable rear wheels

Details Truck with steerable rear wheels Truck with steerable rear wheels

B - Operations, Transporting

62

D

280/184

B62D 7/04 (2006.01) B61F 5/52 (2006.01) B62D 7/14 (2006.01)

Patent

CA 1124764

TRUCK WITH STEERABLE REAR WHEELS Abstract of the Disclosure A motorized vehicle having both steerable front wheels and driven steerable rear wheels. The front wheel suspension is such that a greater degree of turn is possible. The orientation of the rear wheels re- lative to the line of travel of the vehicle may be controlled by the operator or alternatively may be automatically oriented to properly track the front wheels. A zero center spool valve is mounted such that proper tracking is assured, an additional change in the front wheel angularity results in the appropriate and necessary change in their rear wheel angularity. The valve body is mounted to change its position in response to orientation of the rear wheels and the spool position is directly related to the orient- ation of the rear wheels such that appropriate relative positioning of the front wheels centers the spool terminating fluid flow to rear wheel orientation controlling cylinders.

321931

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