Down pressure control mechanism for grain drills

Details Down pressure control mechanism for grain drills Down pressure control mechanism for grain drills

A - Human Necessities

01

B

111/21

A01B 61/00 (2006.01)

Patent

CA 1082529

ABSTRACT OF THE DISCLOSURE A down pressure control for use with furrow openers in grain drills which provides a spring load for maintaining down pressure on the furrow opener during normal operating conditions and which can be at a relatively high rate to permit minimum tillage,or work in hard ground, but yet will release upon excessive movement of the furrow opener to prevent overstressing the hold down springs. The down pressure control is used in combination with an individual depth control for each of the furrow openers to insure that each furrow opener is individually controlled as to down pressure and depth.

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