Device for coupling a tractor to an agricultural implement and t

Details Device for coupling a tractor to an agricultural implement and t Device for coupling a tractor to an agricultural implement and t

1975-09-05

1976-06-08

Wood, Jr., M. H.

Land vehicles

Wheeled

Articulated vehicle

280456A, 172275, B60D 108

Patent

active

039618129

ABSTRACT:
A tractor having a pair of parallel catch arms pivotally mounted on the rear portion of the tractor are engageable with a shield plate mounted on the implement or machine to be coupled to the tractor. The lower ends of the catch arms are pivotally mounted to a supporting bracket on the tractor and are rigidly connected by a catch plate. At least one retaining pawl is pivotally mounted on each catch arm and has a jaw opening engagable with a locking shaft. A locking element actuable by a safety linkage is pivotally mounted on the catch arm and has a curved locking surface extending eccentrically of its pivot mount for lockingly engaging the retaining pawl. The locking element is secured in position by a locking lever and the entire locking mechanism can be released only by actuation of the locking lever and the safety linkage.

REFERENCES:
patent: 3214191 (1965-11-01), Johnson
patent: 3285625 (1966-11-01), Krueger
patent: 3306630 (1967-02-01), Weiste
patent: 3829128 (1974-08-01), Sutton
patent: 3847415 (1974-11-01), Geisthoff

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