JPS573909A - Drain pipe for culvert - Google Patents
Drain pipe for culvertInfo
- Publication number
- JPS573909A JPS573909A JP7679180A JP7679180A JPS573909A JP S573909 A JPS573909 A JP S573909A JP 7679180 A JP7679180 A JP 7679180A JP 7679180 A JP7679180 A JP 7679180A JP S573909 A JPS573909 A JP S573909A
- Authority
- JP
- Japan
- Prior art keywords
- water passing
- water
- drain pipe
- valve device
- tonque
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To prevent the clogging of water passing holes by providing a valve device consisting of plural soft tonque pieces projecting from the peripheral edges of a large number of the water passing holes toward the centers of the water-passing holes.
CONSTITUTION: When the amount of water passing reaches a preset value, the tip of a tonque piece 4 is bent toward the inside of a drain pipe 2 by water pressures imposing on a valve device 1, and the area of an opening 5 is changed according to the amount of water passing. In this case, small diametered soil and sand pass through a water passing hole 3, but comparatively large diametered gravels are intercepted to go into the drain pipe by the interruption of the valve device 1.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7679180A JPS573909A (en) | 1980-06-06 | 1980-06-06 | Drain pipe for culvert |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7679180A JPS573909A (en) | 1980-06-06 | 1980-06-06 | Drain pipe for culvert |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS573909A true JPS573909A (en) | 1982-01-09 |
Family
ID=13615440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7679180A Pending JPS573909A (en) | 1980-06-06 | 1980-06-06 | Drain pipe for culvert |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS573909A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH074534U (en) * | 1993-06-22 | 1995-01-24 | 日本テトラポッド株式会社 | Water collection pipe |
-
1980
- 1980-06-06 JP JP7679180A patent/JPS573909A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH074534U (en) * | 1993-06-22 | 1995-01-24 | 日本テトラポッド株式会社 | Water collection pipe |
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