Arrangement using mower-conditioner header float springs to bias

Details Arrangement using mower-conditioner header float springs to bias Arrangement using mower-conditioner header float springs to bias

1988-08-30

1989-07-04

Dang, Hoang C.

Harvesters

Motorized harvester

Having driven means for handling or treating crop

56 1, 56 158, 56DIG1, A01D 4310, A01D 4700

Patent

active

048438049

ABSTRACT:
A pull-type mower-conditioner has a main frame including a pair of laterally spaced, downwardly projecting legs. A lower conditioner roll has opposite ends rotatably mounted to the main frame while an upper conditioner roll is mounted for arcuate movement towards and away from the lower roll by means of a pair of laterally spaced, L-shaped roll support arms that are respectively vertically pivotally mounted to the pair of main frame legs and have forwardly projecting legs in which opposite ends of the upper roll are rotatably mounted. A header is suspended from the main frame for vertical floating movement by a pair of four-bar linkages respectively coupled to opposite ends of the header and coupled directly between upstanding legs of each of the roll support arms and a bottom link of each of the four-bar linkages is a float spring that acts to simultaneously exert a lifting force on the header and a downwardly biasing force on the upper conditioner roll.

REFERENCES:
patent: 3363407 (1968-01-01), Drummond
patent: 3599405 (1971-08-01), Hurlburt et al.
patent: 3672132 (1972-06-01), Scarnato et al.
patent: 3958399 (1976-05-01), Schoeneberger
patent: 4175366 (1979-11-01), Cicci
patent: 4472927 (1984-09-01), Vogt et al.
patent: 4546599 (1985-10-01), Cicci et al.

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