| 摘要 |
A vehicle is provided with four laterally spaced track units, each of which includes a travelling endless track. Above the track units there is a chassis floor, from which laterally spaced rigid members extend down between the track units. Means are provided for connecting the track units to these rigid members beside them to support the floor. Such means, which include horizontal pivots, are constructed and arranged to allow the track units to tilt laterally. The drive shafts for the endless tracks are so constructed as not to interfere with tilting of the track units. At the back of the vehicle, readily accessible means are provided for taking up slack in the endless tracks.
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