| 摘要 |
A straddle carrier is operable to lift and convey a shipping container. The straddle carrier has a plurality of wheeled structures between weight-bearing portions and the ground. Each wheeled structure has two or more wheels. Each of the wheels is turnable (i.e. steerable) relative to the wheeled structure to which it is connected. Each wheeled structure is also pivotable (by at least by at least 90° in a horizontal plane) relative to the weight-bearing portion which it supports. Consequently, the wheeled structures can be oriented so as to enable the straddle carrier to move forward, to steer by turning (steering) one or more wheels, or to move perpendicular to the straddle carrier's forward direction. |
