Folding mechanism for hinged implement frame extensions

Details Folding mechanism for hinged implement frame extensions Folding mechanism for hinged implement frame extensions

1974-02-13

1977-07-12

Scott, Samuel

Machine element or mechanism

Control lever and linkage systems

Elements

56228, 172240, G05G 104

Patent

active

040346234

ABSTRACT:
This invention relates to a hydraulic servomotor-actuated folding mechanism for swinging the hinged extension of an implement frame horizontally between an extended and a retracted position characterized by a two-part foldable strut, the adjacent ends of its sections being hingedly interconnected for pivotal movement, a first link connected between the piston rod of the servomotor and the foldable strut section, and a second link pivotally connected to the main strut section at a point displaced from the pivotal connection between its sections, said second link having its other end connected to the first link at a point intermediate its ends so as to cooperate therewith and with the strut sections to define a pair of fixed length lever arms movable upon actuation between a crossed relation and a side-by-side relation to effect folding and unfolding of the strut.

REFERENCES:
patent: 3027778 (1962-04-01), Risnes
patent: 3791673 (1974-02-01), Hornung
patent: 3797580 (1974-03-01), Roth

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