Land vehicles – Body elevation or tilt – Establishing riding or trim height
Patent
1986-01-27
1987-07-14
Bertsch, Richard A.
Land vehicles
Body elevation or tilt
Establishing riding or trim height
180 41, 280702, B60P 118, B60G 1700
Patent
active
046798030
ABSTRACT:
The present invention relates to mobile land vehicles having a boom assembly, and more particularly to vehicles used for felling and handling trees on steep mountainous terrain. The vehicle of this invention includes apparatus for providing multi-directional relative movement between a conventional tread assembly of the caterpillar type and a swing-house assembly which includes a boom subassembly supporting tree-felling and handling equipment, so that the swing-house assembly is maintained in a substantially level relationship with the horizontal, regardless of the inclination of the ground on which the vehicle rides, and so that the center of gravity of the vehicle is optimized by weight transfer corresponding to the type of ground inclination encountered.
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Biller Cleveland J.
Johnson David D.
Bertsch Richard A.
McConnell David G.
Silverstein M. Howard
The United States of America as represented by the Secretary of
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