Cutting machine with a pivoting hitching structure

Cutting machine connectable to a motor vehicle, having a lifting device, for cutting agricultural products as the motor vehicle moves in a work direction, comprising:

• a cutting mechanism positionable to extend crosswise to the work direction;
• a hitching structure having three hitching points connectable to three hitching points of the lifting device of the motor vehicle;
• a support beam connected to the hitching structure via a first journal having a first axis directed at least approximately in the work direction and extending, as seen in the work direction, in the vicinity of a triangle formed by the three hitching points of said hitching structure, said support beam being connected to said cutting mechanism via a second journal having a second axis directed at least approximately in the working direction;
• a set down element mounted to hold said support beam in a set down position, whereby said hitching structure can pivot around said first axis of said first journal;
• a traction element comprising a draw spring for lightening said cutting mechanism;
• means for cancelling the lightening effect of said traction element for setting down of the said cutting machine;
• a locking element comprising means for locking pivoting of said support beam relative to said hitching structure around the first axis of said first journal during transport;
• and
• means for cancelling the locking action of said locking element during work and set down of the said cutting machine.