Hydraulic suspension for harvesting machines

Details Hydraulic suspension for harvesting machines Hydraulic suspension for harvesting machines

1979-09-27

1981-01-27

Love, John J.

Land vehicles

Body elevation or tilt

Establishing riding or trim height

172395, 267 65D, 280709, 280714, B60S 912

Patent

active

042471265

ABSTRACT:
A generally rectangular frame having a vertical support column at each corner thereof mounted for vertical movement relative to the frame. Four hydraulic rams, all of the same diameter and one for each support columns, are used are used to connect the frame to the columns, with the two rams at one end causng raising or lowering of the frames by contraction or extension of the rams while corresponding movement of the other end of the frame is caused by opposite movement of the rams thereat. A hydraulic control system selectively: raises or lowers the frame relative to all four columns, raises or lowers the frame relative to one side only of the frame, or or raises one side of the frame while lowering the other. Additionally, the system allows the columns at one end of the frame to move freely, in equal and opposite directions relative to the frames.

REFERENCES:
patent: 3909022 (1975-09-01), Claxton
patent: 4050704 (1977-09-01), Duca

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