Automatic lock for farm equipment transport wheel

Details Automatic lock for farm equipment transport wheel Automatic lock for farm equipment transport wheel

1983-11-07

1985-08-13

Johnson, Richard J.

Earth working

Plural wheeled implements

Outrigged implement adjustable inwardly

172413, 172466, A01B 6322

Patent

active

045344167

ABSTRACT:
Movement of a wing frame to folded position moves a locking member into position to be engaged by the arm which actuates the wheels to lowered position. When engaged, the lock prevents the wheels from being raised. To disengage the lock the wing must be unfolded first to enable the locking lever to rise out of the way when the arm is actuated to disengage the lock. The entire operation is controlled hydraulically and the farmer need not get off his tractor to lock or unlock the rig.

REFERENCES:
patent: 2704021 (1955-03-01), Brundage
patent: 3463241 (1969-08-01), Essex
patent: 3470965 (1969-10-01), Quickstad
patent: 3481408 (1969-12-01), Twidale
patent: 3897832 (1975-08-01), Leedahl et al.
patent: 4346763 (1982-08-01), Swanson et al.
patent: 4360067 (1982-11-01), Schaaf
patent: 4446925 (1984-05-01), Vachon

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