Excavating – Peat excavators
Patent
1981-01-30
1982-11-02
Burr, Edgar S.
Excavating
Peat excavators
172448, 172474, 172698, 2541315, A01B 1300, A01G 2306
Patent
active
043566448
ABSTRACT:
A grubbing plow mounted on two lower arms and an upper attachment point of a 3-point tractor hitch includes a frame having (1) a horizontal pivotal bar journaled at opposite ends thereof on the lower hitch arms; (2) an upper crank arm; and (3) a lower member. The pivot bar is pivotally mounted for rotational movement about a horizontal axis. The upper crank arm and lower member are aligned and oppositely directed from the pivot bar.
A knife-edged, V-shaped blade is rigidly attached to the lower end of the lower member and lies in a plane perpendicular to the length of the lower member.
A hydraulic cylinder is connected between the upper attachment point and the upper end of the upper crank arm for forcibly swinging the blade in an arc around the axis of the pivot bar to engage and remove roots encountered within said arc.
A force transmitting member is pivotally mounted to the frame and extends from the frame for contacting the ground on the side of the frame opposite from which the blade extends. When a reaction force is produced by resistance encountered by the blade, a substantial portion of the reaction force is transmitted directly to the ground through the force transmitting member, thereby reducing the reaction forces transmitted through the tractor.
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Burr Edgar S.
Cohen Moshe I.
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