Conditioner roll tension system

Harvesters – Motorized harvester – Having driven means for handling or treating crop

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Details

56 1, 56DIG1, 100169, A01D 4310, A01D 8200

Patent

active

050332570

ABSTRACT:
A mower conditioner includes a main frame having a header connected thereto by a four bar linkage which permits the header to float over the ground during harvesting operation. The header carries upper and lower conditioner rolls with the opposite ends of the upper roll being respectively mounted to a pair of arms mounted for pivoting vertically such that the upper roll moves towards or away from the lower roll in response to crop density variations. A float spring assembly is provided at each side of the mower conditioner and each has its upper end supported by the frame and has its lower end pivotally coupled to a force transfer linkage that is pivotally mounted to the header for movement about a transverse axis and is pivotally linked to an adjacent one of the conditioner roll support arms whereby the force transfer linkage acts to transfer a lifting force to the header and a downward biasing force to the upper conditioner roll.

REFERENCES:
patent: 3474601 (1969-10-01), Burrough et al.
patent: 3733796 (1973-05-01), Wood et al.
patent: 3881301 (1975-05-01), Sawyer et al.
patent: 4472927 (1984-09-01), Vogt et al.
patent: 4546599 (1985-10-01), Cicci et al.
patent: 4843804 (1989-07-01), Wellman
patent: 4961303 (1990-10-01), McCarty et al.

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