AGRICULTURAL MACHINE PROVIDED WITH A CENTRING DEVICE

摘要

The present invention relates to an agricultural machine comprising a shaft carrying at least one working tool, and a coupling frame for coupling to the agricultural machine to a lifting device at three points of a tractor and carrier vehicle, elongated support member being connected to the coupling frame by a pivot connection to a substantially vertical axis, said machine being movable between a lowered position and a raised position. A centering device is provided for moving and holding the elongate support member at a determined angular position about the pivot link with the coupling frame, said centering or alignment device comprising a connecting member displaceable during lifting.; An agricultural machine characterized in that the connecting piece (7) is also operatively connected to two members (8, 8 ') adapted to apply rotational antagonistically the elongate support member (2) about its pivot connection with the frame coupling (4), said members (8, 8 ') moving and maintaining the elongate support member (2) in its angular position in the raised position of said machine (1).