Rubber spring for furrow opener

Details Rubber spring for furrow opener Rubber spring for furrow opener

A - Human Necessities

01

B

111/41, 267/64

A01B 49/04 (2006.01) A01C 5/06 (2006.01)

Patent

CA 1171737

RUBBER SPRING FOR FURROW OPENER Abstract of the Disclosure - A pre-stressed columnar rubber spring interposed between the pressure beam and pivoted draw bar tube of a no-till seed drill deflects under load in one direction only and the force causing increased spring deflection in the principle operational range increases to a desired maximum and then remains substantially constant or decreases slightly thereby relieving the machine of excess stresses caused by contact of coulter and openers with rocks and other field obstructions.

417207

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