| 摘要 |
PROBLEM TO BE SOLVED: To provide a rainwater drainage device which can accurately and smoothly discharge surficial rainwater even during a downpour by increasing a surficial drainage capacity, and can keep a landscape favorable. SOLUTION: A gully 1 and a drain pipe 2 which communicates with the gully 1 is buried in the ground, and a rainwater guide device 3 is provided at the upper part of the gully 1. This rainwater guide device 3 comprises a drainage trough 5 longer in one direction which is elongated in a state of being exposed on the ground surface, and a rainwater introduction body 4 for introducing the rainwater flowing into the drainage trough 5 into the gully 1. COPYRIGHT: (C)2007,JPO&INPIT
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