It regulates that the traveling wheel falls into the gap of the rail, suppresses vibration of the article, and makes it easy to change the direction of the traveling wheel. The tracked truck system SYS has a main body 10 that holds and conveys the conveying container M from the lower side of the rail R along the rail R including the points arranged in a grid shape. As a track bogie system SYS, each of the four corner portions 10a of the main body 10 is provided with a running wheel 21 for driving the rail R, and for changing the direction of the running wheel 21 A control unit 40 for controlling the turning drive unit 34 and an auxiliary wheel 22 disposed in at least one of the front and rear of the driving wheel 21 in the driving direction are provided.
展开▼
