FIELD: agriculture; machine building.
SUBSTANCE: coupler for an implement, suitable for installation on agricultural machine (1), comprises chassis (8), transverse to direction of movement of coupling, system (41, 42) for coupling agricultural implement with chassis (8), attachment device for attachment of chassis (8) to agricultural machine (1). Connection system (41, 42) is made with possibility of free rotation relative to chassis (8) around vertical axis (z). Attachment device comprises at least two levers (7a, 7b) having activation means (72a, 72b) and intended for connection of chassis (8) to agricultural machine. Levers (7a, 7b) extend in a direction substantially parallel to the direction of movement of the coupling. Each of levers (7a, 7b) has at its proximal end relative to chassis (8) first hinge link (L1a, L1b) with chassis (8), providing rotation of at least one part of said lever (7a, 7b) relative to chassis (8) around vertical axis (z), as well as second hinge link (L2a, L2b) with agricultural machine (1), providing rotation of at least part of said lever (7a, 7b) relative to agricultural machine (1) around vertical axis (z). Set of four hinge links (L1a, L1b, L2a, L2d) forms deformable parallelogram (P), capable of deforming under action of activation means (72a, 72b).
EFFECT: provides for lateral movement of coupling, which cannot be provided by agricultural machine, while maintaining flexibility of connection, providing self-leveling coupling, with simultaneous reduction of weight and displacement of device.
16 cl, 8 dwg
