Three-point hitch having flotation

Details Three-point hitch having flotation Three-point hitch having flotation

A - Human Necessities

01

B

A01B 59/043 (2006.01) A01B 59/06 (2006.01) A01B 63/10 (2006.01) B60D 1/14 (2006.01)

Patent

CA 2455185

A three-point hitch suitable for operation with wide implements is constructed by substituting a pair of flotation actuators for the usual drop links that are normally coupled between a pair of rocker arms and a pair of lower draft links. These drop links are coupled to a hydraulic circuit including, according to one embodiment, individual accumulators for each flotation actuator, and according to a second embodiment, both actuators are coupled to a single accumulator. The accumulator(s) act to cause a pre-selected lifting force to be exerted by the flotation actuators so that a predetermined amount of the weight of an implement mounted to the draft links is counterbalanced, leaving a desired ground pressure being exerted by the implement during operation. When using individual accumulators, a side- to- side weight balance can be achieved since different accumulator settings may be used.

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