| 摘要 |
PURPOSE:To improve the straight forward travel characteristics of an unmanned carrier with the track thereof controlled with a sensor by applying a camber angle at least to one pair of right and left wheels in driving or driven wheels in such a way that the cambered wheels will be inclined to a direction opposite from each other. CONSTITUTION:An inclined liner 12 is fixed to the internal surface of an upper plate 1a in the body frame 1 of an unmanned carrier. And, for ex ample, a driven wheel 13 is supported on the inclined liner 12 via a spring 14 in such a way as to be inclined from a vertical plane. In this case, the inclination angle thetaof the driven wheel 13, or a camber angle theta formed with the direction of the driven wheel 13 orthogonal with an axle and a vertical plane is so set as to be inclined in an opposite direction right and left. Forces working on the right and left driven wheels 13 in a direction orthogonal with a straight forward direction are so made as to offset each other. According to the aforesaid construction, the straight forward running characteristics of the unmanned carrier is improved, and the prevention of derailing the carrier from a track and the like are thereby attained. |
