| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of a leak caused by the cut of a sealing material due to the infiltration of rainwater or the like into a clearance easily formed in a drain executing at the bottom plate of an eaves gutter which is increased to use as a water collector or the drain for making rainwater flow down to a down pipe from an eaves gutter following the recent westernization of houses. SOLUTION: In this drain, a collar part abutting on the bottom plate of the eaves gutter is made wide and inclined so that the peripheral edge of the collar part is lowered downward to prevent the formation of a clearance. With this structure, the collar part has resiliency to permit work execution without the clearance when clamped, and the drain withstands long-term use without causing a water leak and corrosion.
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