Mechanism for raising and lowering of a farming implement

Details Mechanism for raising and lowering of a farming implement Mechanism for raising and lowering of a farming implement

A - Human Necessities

01

B

97/70.6, 97/71.7

A01B 63/00 (2006.01) A01B 63/22 (2006.01)

Patent

CA 1249161

ABSTRACT OF THE DISCLOSURE The linkage mechanism between the front and the rear wheels of a farming implement includes a front and a rear arm the free ends of which suspend the respective wheels. Each arm has a transverse bracket near its other end. The bracket defines, at its free end, a pivot joint with one end of a normally generally horizontal connecting rod whose other end is similarly connected to the bracket of the other arm. Each arm is mounted in a respective bearing for swinging about a pivot point to raise or to lower the frame of the implement. The three pivot points associated with; each arm define a respective linkage triangle. The geometry of the linkage triangles is developed from a reference triangle, divided by a median into two triangles of which one corresponds to one of said linkage triangles and the other corresponds to or is similar to the other one of said linkage triangles. The invention facilitates the designing of the linkage.

563799

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