| 摘要 |
PURPOSE:To permit the advance direction to be continuously change in all the directions independently of the car body center line of vehicle, obviating the need of mode change, etc., and permit the attitude of the car body to be corrected with respect to all the advance directions. CONSTITUTION:As for a reach type forklift 1 which supports the left and right load wheels 12L and 12R, in steering enabled form, the axis G on which the turning centers which pass through the steering centers M and N of the left and right load wheels 12L and 12R are arranged is supposed. Further, the crossing point between the axis D on which the turning centers are arranged after the revolution shift in which the axis G is turning-shifted around a representative point E, by an advance angle theta0 indicated by an advance angle input means and the axis F drawn along the steering angle theta1 of a drive wheel from the steering center O is set as the turning center P, and the axes H and I which are formed by connecting the turning center P and the steering centers M and N are determined, and steering is performed by setting the angles thetaL and thetaR formed by the axes H and I and the axis G as the steering angles for the left and right load wheels 12L and 12R. |
