| 摘要 |
A self-propelled vault carrying vehicle having a pair of spaced opposed side frames for straddling a vault and a bridge frame extending between upper portions of the side frames wherein a separate drive is provided for a pair of driven wheels on each side of the frame and control for controlling the operation of the driven wheels independently of one another to provide for highly effective tractive steering and a high degree of maneuverability. A powered lift is carried on the bridge frame for raising and lowering the vault with the ends and bottom of the vehicle frame being open to provide unobstructed vertical movement of the vault with respect to the frame.
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