摘要 |
Vehicle traction module (1) comprising—a pair of runners ((11,12), (21,22), (42, 43)), side by side according to a first direction (X)—first moving means ((14, 17, 19), (24, 31, 28), (45,48,49)) suitable to generate an alternate and reciprocal approaching and departing of the runners along the first direction (X),—the pair of runners ((11,12), (21,22), (42, 43)), having a cylindrical symmetry shape wherein the respective axis of symmetry lie along the first direction (X),—second moving means ((15, 16, 18, 17), (30,26 31, 27), (40, 41) suitable to generate a rotation of the runners along the first direction (X). |