Patent ID: 6651593
Filing Date: 2003-11-25
Classification: A01K,Y10T

Abstract:
A head gate element comprising:a substantially flat frame; a substantially rectilinear movable bar mounted so as to pivot on a shaft fixed to said frame and substantially perpendicular to the plane, so that the movable bar can be situated in two extreme inclined positions, namely an open position and a release position, as well as in an intermediate closed position in which the movable bar is substantially vertical; fixed rigidly to one end of the movable bar, a locking fork joint formed by two plates, receiving a transverse slide able to move in translation in the direction of the movable bar; control bar able to move in rotation about its longitudinal axis in order to control the possibilities of the movable bar in the three positions, said control bar being fixed in translation to the top part of the frame and extending between the two plates of the locking fork joint; the control bar comprising locking means arranged to cooperate with the slide of the locking fork joint, characterized in that said slide is guided in translation by guidance means situated on the internal face of each of the plates.