Force measurement device for controlling the position of an impl

Details Force measurement device for controlling the position of an impl Force measurement device for controlling the position of an impl

1982-02-01

1984-06-26

Ruehl, Charles A.

Earth working

Automatic power control

Draft responsive

7386204, 7386257, A01B 63112, G01L 516

Patent

active

044560745

ABSTRACT:
A force measuring device for an implement for towing an agricultural machine comprising at least one connection arm between the implement and a flexure bar mounted on said agricultural machine, at least one lever connecting the arm to a control system, wherein said control system comprises an electrical circuit arranged to control the movement of the lever by means of a mechanical and/or hydraulic member, the electrical circuit comprising at least one resistive element fixed to a portion of the flexure bar, the resistive element being constructed of a material the resistance of which is proportional to the deformation which the element undergoes when in use.

REFERENCES:
patent: 2457616 (1948-12-01), Van Dyke et al.
patent: 3814188 (1974-06-01), Ahne
patent: 3992934 (1976-11-01), Clark
patent: 4016644 (1977-04-01), Kurtz
patent: 4315548 (1982-02-01), Nakamura et al.
patent: 4355692 (1982-10-01), Ostrelich

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