RUNNING BOARD

PURPOSE: To suitably control the attitude of a running board and to make all vehicles normally pass by forming connector series forward of weight series of main and sub-series in parallel, detaining both the ends by a triangular plate, forming the sub-connector series of the detaining hole of the plate in a long hole of suitable length, and providing a play in a towing direction. CONSTITUTION: Both the ends of main and sub-connector series 1, 2 having equal lengths in parallel are coupled to both the corners of a pair of corresponding triangular plates 3, 4, the other corners are connected to pilot wires G at the one plate 3, and connected at the other plate 4 to a wire E via a following connector series C. In this case, the detaining holes 3a, 4a of the plates 3, 4 for detaining the series 2 are formed in suitable lengths, and a play is given to a pin P in a suitable towing direction. Even if the pin P is disposed in the wrongest state perpendicular to the axis of the entire vehicles, the series 1 for receiving an extending tension is moved to the groove bottom at the sidewall of the entire vehicle grooves, and bent in the extending direction, and hence the series 2 is forcibly excluded upward.