Patent ID: 8578690

Claim:
An agricultural haymaking machine intended to be hitched to two lower arms of a tractor, comprising: a frame supported on the ground by wheels and at least one work device connected to the frame, the frame including a front part in a pivoting connection with a hitching device configured to be connected to the two lower arms, the hitching device comprising a hitching piece extending between two ends, the machine having a center of gravity situated between the wheels and the hitching device, wherein the projection of an axis of the pivoting connection on a plane which is substantially vertical and substantially parallel to a direction of advance of the machine has an inclination towards the direction of advance following an upward direction relative to the ground, wherein a pivoting of the hitching device with respect to the frame about the axis of the pivoting connection as a result of the machine following a curve having an interior side and an exterior side, causes an interior end of the hitching piece situated on the interior side of the curve to be at a greater height than an exterior end of the hitching piece situated on the exterior side of the curve, and wherein the interior end being at a greater height than the exterior end generates a greater support on the lower arm situated on the exterior side of the curve than on the lower arm situated on the interior side of the curve.