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Its a rainproof on the bus. Passengers must close their umbrella outside the bus, because there are always so many people on the queue to take the bus. However they always cant get on the bus as soon as he closes the umbrella. They might be wet in 30 second if the rain is very heavy.
This bus-rainproof can provide a dry room for people to close the umbrella and wait a while. And as a result it can help to speed up the boarding.
The structure of the bus-rainproof is simple. The rainproof can be opened as a folding fan by the doors mechanism. It is openned with the door.
Mechanical Design and Theory
Rm 1009 No.2 Ln 300
Jin Yang Jing Su