Three-point hitch draft control

Details Three-point hitch draft control Three-point hitch draft control

A - Human Necessities

01

B

97/119

A01B 63/112 (2006.01)

Patent

CA 1147200

THREE-POINT HITCH DRAFT CONTROL Abstract of the Disclosure The draft control consists of a three-point hitch mechanism which automatically raises or lowers the hitched implement so that a predetermined draft load can be maintained. An increase or decrease draft load on the implement is sensed by an upper hitch arm. A linkage mechanism transfers this force through a number of links of proper length, such that, the implement is raised with excessive draft load and lowered the implement as the draft load decreases from the excessive level. The draft load that is to be maintained is determined by the location of the middle link in one of a plurality of holes in the attaching linkage. Structure is provided to lock out the draft control.

372214

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