The combination of vehicles null which has 4 degree of freedom die concatenated

摘要

PURPOSE:To improve running ability on an uneven ground, by a method wherein rolling, pitching, heaving, and yawing between front and rear vehicles are allowable. CONSTITUTION:The longitudinal, the lateral, and the vertical direction of a vehicle form axial directions (x), (y), and (z), respectively. The one shaft body 21 of a coupling device has its front end part coupled to a fixed projection 1a of the rear part of a front vehicle through a universal joint B rotatable in the directions of axes (x) and (z). The other shaft body 22 is coupled to a rear vehicle at the rear ends of arm parts 22a, which are extended rearward from the intermediate part of the other shaft body in a fork manner within a horizontal plane, through a joint C being rotatable around an axis (y).