Agricultural machine provided with a simplified safety system enabling a tool or group of tools connected to a hitching support by a support arm to carry out a safety movement
The invention relates to an agricultural machine (1) comprising a hitching support (2), at least one tool or group of tools (3) which can be transferred between an operational position and a raised position, at least one support arm which is connected to the hitching support (2) via two joints (L1 et L2) and to the tool or group of tools (3) at an assembly location (5), and a safety device (6) for performing a safety movement under the effect of pressure. Said machine (1) is characterized in that at least one first safety movement phase is carried out around the first joint (L1) or around one of the two joints (L1, L2) and in that the safety device (6) comprises at least one guiding device (7) adapted and intended to allow for a variation in a distance between the other of the two joints (L1, L2) and the assembly location (5) when the rearward rotation is carried out around the first joint (L1).
