Control system and method for combine harvesters

Details Control system and method for combine harvesters Control system and method for combine harvesters

1976-06-22

1978-12-26

Kinsey, Russell R.

Harvesters

Platform adjustments

A01D 6700

Patent

active

041309812

ABSTRACT:
Control device for guiding a hydraulically operated cutter mechanism of a harvesting machine, particularly a combine harvester, at a preselected height above the ground, said cutter mechanism being connected via a connecting member and two series-connected spring elements to a stationary portion of the harvesting machine, the spring force of at least one of said spring elements being preselectable by means of an adjustment lever, while between said spring elements a switching member is arranged which depending on the position thereof acts on a switch actuating either a raise valve or the lower valve of the lifting cylinder or takes a neutral position, wherein said two spring elements connected with one of their ends to said cutter mechanism are connected via said connecting member to said adjustment lever provided on the stationary portion of said combine harvester.

REFERENCES:
patent: 3509701 (1970-05-01), Clarke
patent: 3568420 (1971-03-01), Hofer et al.
patent: 3643407 (1972-02-01), Hubbard et al.
patent: 3736737 (1973-06-01), Schumacher et al.
patent: 3906710 (1975-09-01), Pask

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