| 摘要 |
PROBLEM TO BE SOLVED: To improve the strength and rainwater draining performance and reduce the noise by the traveling load of an automobile by bolting a gutter lid formed of a reinforced concrete board and a grating member fixed to the end thereof to a gutter body. SOLUTION: This gutter lid 4 is formed of a reinforced concrete board and grating members 5 fixed to both ends thereof. The grating member 5 is formed of a punching metal having a number of pore parts 7, and fixed by burying anchor bars 11 fixed to the side surface in the reinforced concrete board. The gutter lid 4 is placed on the locking stepped part of an opening formed in a gutter body, and an insert bolt 9 is screwed to an insert member 8 buried in the gutter body through a mount par 10 formed on the grating member 5 to fix the gutter lid 4. An insert nut may be buried instead of the anchor bar 11 to fix the grating member 5. According to this, the strength and rainwater draining performance of the gutter lid 4 can be improved to reduce the noise by the traveling load of an automobile.
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