| 摘要 |
An aerial rescue device is a powered platform that quickly elevates the fireman to height, or powers the secure descent of a rescued person. A powered carriage rides between two extensible booms. Two rungs secured to the carriage enable a fireman to stand on one and hold onto the other. The two booms have rails within. The rails guide trolleys secured to the ends of the two rungs. The carriage is moved by two cables. Each cable is connected at one end to the carriage and at the other end to two winches. These winches are computer controlled to enable the carriage to ride up and down while the booms are being extended. Preferably, there are also rotatable boom segments at the top of the booms.
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