Load based suspension motion limiting

Details Load based suspension motion limiting Load based suspension motion limiting

2007-03-20

2007-03-20

Dickson, Paul N. (Department: 3616)

Land vehicles

Body elevation or tilt

Establishing riding or trim height

C280S124106, C280S124161, C280S400000

Reexamination Certificate

active

11286732

ABSTRACT:
An articulated loader has an articulated chassis and two A-frames. The points of the A-frames face each other. The articulated chassis includes a front portion and a rear portion. Likewise, there is a front or first A-frame and a rear or second A-frame. The A-frames are connected to the overall chassis at points close to but offset from the point of vehicle articulation via ball joints and via hydraulic suspension cylinders toward the wider portions of the “A”s. The vehicle is propelled along the ground by independently driven tracks. The invention includes a feature to limit the motion of the suspension system based on the load applied to the suspension cylinders, i.e., the pressure experienced by the head end of the suspension cylinders. This is accomplished via pilot operated check valves.

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