Title:
DRAIN PORT STRUCTURE OF PERMEABLE PAVEMENT
Document Type and Number:
Japanese Patent JP2018197460
Kind Code:
A
Abstract:
To form a drain port of permeable pavement without modifying existing road side ditches.SOLUTION: A U-shaped ditch block 4 with an opening closed with a cover block 4 is buried under a permeable pavement material layer 2. The cover block 4 has a drain port cylinder 7 communicated with a drain port 6 and erected and serving also as a grating support, and the permeable pavement material layer 2 is spread around the cylinder 7. A flange horizontally extended at both sides lower ends of the drain port cylinder 7 abuts on an upper face of the drain port both ends of the cover block, and a cross rail 15 formed with a vertically penetrating bolt insertion hole 16 is fixed inside the drain port cylinder 7. A lower end of a drain port cylinder fixing bolt 17 inserted into the bolt insertion hole 16 is screwed to a latch 18 with both ends abutting on a lower face of the drain port both sides of the cover block 4, and in a fitted state of the latch 18 to a latch fitting groove 19 on a cover block lower face, the drain port cylinder fixing bolt 17 is screwed to the latch 18 and tightened.SELECTED DRAWING: Figure 1
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Inventors:
AKI TADAO
Application Number:
JP2017102795A
Publication Date:
December 13, 2018
Filing Date:
May 24, 2017
Export Citation:
Assignee:
WING KK
SAITAMA TEKKIN CONCRETE KK
SAITAMA TEKKIN CONCRETE KK
International Classes:
E03F5/04; E01C11/22
Attorney, Agent or Firm:
Rita Ishii
Masao Tanaka
Masao Tanaka