Hiniker Company

Richard Schulz

James A Johnson

Richard L Peterson

Vincent J Tomlonovic

Gary Dennis Hodapp

An elongated boom is pivotally mounted to the forward portion of a tractor and includes a pair of drive/steering wheels mounted to the forward end portion thereof. An electrically actuated, hydraulic control system provides for direction control and rotation of the drive/steering wheels as well as for pivoting displacement of the boom. The drive/steering wheels are mounted to the boom by means of a front axle bolster and pivot assembly, the mounting point of which to the boom may be fixed as desired to permit the effective length of the boom to be varied. Also mounted to a forward portion of the boom by means of the front axle bolster and pivot assembly is a three-point hitch with tilting mast to which a toolbar having a plurality of row units mounted thereto is attached. A hydraulic top link cylinder coupled between the front axle bolster and pivot assembly and the three point hitch allows the toolbar to be rotated about its longitudinal axis and thus affords on-the-go row unit depth control. A pair of hydraulic lift cylinders coupled to the three point hitch via a rock shaft provides for the displacement of the toolbar and row units to an upraised, nonuse position for transport as well as the lowering thereof to a working, ground engaging position.

Tractor boom

A manually operable position lock for a hydraulic actuator (10) adding a cylinder (20) and a piston rod (22) with a stop finger (61) for actuating a push rod (60) to close a valve (32) and prevent fluid egress from the cylinder. The lock includes a pivot bracket (110) carried by a push rod, a control lever (111) pivoted to the pivot bracket, a link (114) pivoted to the control lever and slidably receiving the push rod, and a helical spring (120) carried by the push rod and engaging one end of the link.

Growing community of inventors

Lake Crystal, MN, United States of America

Richard Schulz