| 摘要 |
A vertical hoist car assembly such as would be used in a large power plant chimney, a silo, a dam structure, or the like, is disclosed. The assembly includes a ladder shaped guide track having parallel side rails interconnected by longitudinally spaced rungs. A service car is arranged to be moved on the guide track and is provided with upper and lower wheels arranged to engage the side rails. The service car has an opening in its floor sized for personnel to enter or leave the car. A hinged door covers the opening during normal operation of the car. In the event of a power failure or some other problem when the service car is unable to move and is at some point intermediate the ends of the guide track, the operator may open the floor door and leave the car and descend down the ladder shaped guide track.
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