| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively provide a beautiful grating for a gutter through which wastewater can be favorably drained and by which a heel of shoes such as high heel of a pedestrian or a narrow wheel of a baby carriage cart is not caught. SOLUTION: Through holes (6) for drain are formed to range over the whole length of a main member (2). The gaps of the main member (2), (2) are arranged to range over the whole length so that wide gaps and narrow gaps are alternately disposed, lightweight channel steels (4) are fitted between wide main members (2), (2) so that the channeling open part faces downward. Further, a porous filling material (5) composed of granular aggregate and an adhesive is filled between wide main members (2), (2) and in the channel-shaped gaps forming the upper face of the light weight channel steels (4).
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