초록 ▼

In the embodiment disclosed, the invention comprises a single, dual-piston cylinder, operable by hydraulic fluid, interpositioned between a pair of pivotably coupled, vehicular units. The cylinder is pivotably secured to pivot coupling elements which join the units, and each piston has its translati

In the embodiment disclosed, the invention comprises a single, dual-piston cylinder, operable by hydraulic fluid, interpositioned between a pair of pivotably coupled, vehicular units. The cylinder is pivotably secured to pivot coupling elements which join the units, and each piston has its translating rod pivotably coupled to one of the units. Ports opening into the cylinder admit and discharge operating, pressured, hydraulic fluid (a) to displace the pistons apart, whereby a first crab steering is effected, (b) to move the pistons into mutual proximity, whereby a second, alternate crab steering is affected, (c) to displace the pistons in unison, in a first direction, whereby a left-hand or right-hand steering is effected, or (d) to displace the pistons in unison, in an opposite direction, whereby the opposite-handed steering is effected.

대표청구항 ▼

Steering means for an articulated vehicle, in which such vehicle has first and second, spaced-apart, vehicular units coupled together, by a pivotable coupling means, on a pivot axis, comprising: a single, dual-ended, linear motor means, fluid-operable for effecting steering displacement of such afor

Steering means for an articulated vehicle, in which such vehicle has first and second, spaced-apart, vehicular units coupled together, by a pivotable coupling means, on a pivot axis, comprising: a single, dual-ended, linear motor means, fluid-operable for effecting steering displacement of such aforesaid vehicular units relative to each other; means for admitting pressured fluid into said single motor means; means for discharging fluid from said single motor means; means joined to said single motor means for mounting said single motor means, intermediate the ends of the latter, to such aforesaid pivotable coupling means; first means for coupling one of said ends to one of such aforesaid, coupled, vehicular units; and second means for coupling the other of said ends to the other of such aforesaid, coupled, vehicular units; wherein said single motor means includes piston means, responsive to pressured fluid admitted thereinto and discharged therefrom, for translating said ends, relative to said mounting means, for effecting steering of such an aforesaid vehicle in a left-hand direction, for effecting steering of such vehicle in a right-hand direction, for effecting steering of such vehicle in a left crab attitude, and for effecting steering of such vehicle in a right crab attitude, selectively.