Vehicle with a lifting device responsive to ground irregularitie

Details Vehicle with a lifting device responsive to ground irregularitie Vehicle with a lifting device responsive to ground irregularitie

1979-04-16

1981-07-21

Stouffer, Richard T.

Earth working

Automatic power control

Land leveller type

A01B 63114

Patent

active

042791383

ABSTRACT:
An agricultural tractor with a hitching or lifting device which carries a farm implement. A control mechanism is provided on the tractor for adjusting automatically the height of the hitching device to enable the implement to follow irregularities in the underlying ground. The control mechanism includes a sensing member which, in one embodiment (FIG. 1), comprises two wheels which may pivot together about a common axis, such pivoting causing adjustment of the hitching device. In another embodiment, independently pivotable wheels or a further ground engaging member such as a skid may be located ahead of or behind the ground engaging wheels of a tractor which, by connection to the control mechanisms cause the hitching device to adjust to the height of the underlying ground.

REFERENCES:
patent: 2616350 (1952-11-01), Robinson et al.
patent: 2635519 (1953-04-01), Cook
patent: 3256940 (1966-06-01), Ashfield
patent: 3750757 (1973-08-01), Saetti
patent: 4176721 (1979-12-01), Poggemiller et al.

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