Apparatus for opening conditioning rolls

Details Apparatus for opening conditioning rolls Apparatus for opening conditioning rolls

1989-07-10

1990-10-09

Britts, Ramon S.

Harvesters

Motorized harvester

Including plural operating units and drive

56DIG1, 100169000, A01D 8200

Patent

active

049613030

ABSTRACT:
A mechanism for forcing apart the upper and lower rolls in a crop conditioning apparatus is disclosed wherein the torsion bar operably associated with the upper conditioning roll to assert a biasing force thereon to urge the upper roll toward engagement with the lower roll is anchored against one of the lift arms pivotally supporting the crop gathering header for generally vertical movement relative to the ground. The anchor is in the form of a connecting link pivotally interconnecting one of the lift arms and an anchoring arm forming a portion of a hub assembly engaged with the torsion bar to effect rotation thereof to create the biasing forces exerted on the upper roll. The movement of the lift arms to raise the crop gathering header relative to the ground causes a reverse rotation of the hub assembly and the engaged torsion bar to lessen the biasing force exerted thereby. A sufficient vertical movement of the lift arms will create reverse biasing forces to urge the upper roll away from the lower roll, effecting a corresponding movement of the upper roll.

REFERENCES:
patent: 3672135 (1972-06-01), Peacock et al.
patent: 4174600 (1979-11-01), Cicci et al.
patent: 4519188 (1985-05-01), Webster et al.

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