Width-variable tillage device

Width-variable tillage device comprising:

• a frame to be pulled behind a towing vehicle;
• a first guide mechanism which is configured as a leading four-bar guide mechanism and is connected to the frame, and which includes:
• a depth guide element which travels on the ground in order to regulate a height of the first guide mechanism above the ground, and
• an actuator which actuates the height of the first guide mechanism between a working position close to the ground, in which the first guide mechanism is guided by the depth guide element, and an elevated position remote from the ground, in which the first guide mechanism is not guided by the depth guide element;
• a second guide mechanism which is configured as a trailing guide mechanism, is connected to the frame and has at least one tool for tillage;
• a connecting member which connects the first guide mechanism and the second guide mechanism such that (i) the second guide mechanism follows the height of the first guide mechanism and (ii) the second guide mechanism can be moved, preferably displaced, in a transverse direction (QR) which extends transversely to the direction of travel (FR) of the frame;
• and
• a width adjustment unit which can adjust a distance in the transverse direction (QR) between the first guide mechanism and the second guide mechanism.