JPS608737U - Manhole cover with internal pressure relief mechanism - Google Patents
Manhole cover with internal pressure relief mechanismInfo
- Publication number
- JPS608737U JPS608737U JP9737983U JP9737983U JPS608737U JP S608737 U JPS608737 U JP S608737U JP 9737983 U JP9737983 U JP 9737983U JP 9737983 U JP9737983 U JP 9737983U JP S608737 U JPS608737 U JP S608737U
- Authority
- JP
- Japan
- Prior art keywords
- hinge
- receiving frame
- manhole cover
- relief mechanism
- shelf
- 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.)
- Granted
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はマンホール蓋の断面図、第２図は受枠と蓋部の
みの裏面図、第３図は蓋部が水流で押上げられた状態の
断面図、第４図は蓋部が水流で押上げられている時に自
動車等のタイヤが乗上げた状態の断面図、第５図は第４
図の部分断面図を表わす。
１・・・・・・マンホール蓋、２・・・・・・受枠、３
・・・・・・蓋部、４・・・・・・蝶番用棚部、４ａ、
４ｂ・・・・・・蝶番用棚部の側板、５・・・・・
・蝶番用長孔、７・・・・・・蝶番用立設壁、８・・・
・・・円球部、９・・・・・・蝶番用連結金具、１０・
・・・・・突起、２０・・・・・・タイヤ。Figure 1 is a cross-sectional view of the manhole cover, Figure 2 is a back view of the receiving frame and cover only, Figure 3 is a cross-sectional view of the cover pushed up by the water flow, and Figure 4 is the cover pushed up by the water flow. Figure 5 is a cross-sectional view of the state in which the tire of a car, etc. is riding on it while being pushed up.
FIG. 1... Manhole cover, 2... Receiving frame, 3
...Lid part, 4...Hinge shelf part, 4a,
4b... Side plate of hinge shelf, 5...
・Elongated hole for hinge, 7... Standing wall for hinge, 8...
...Circular part, 9...Hinge connection fitting, 10.
...protrusion, 20 ... tire.
Claims (1)
面に突設され蝶番用透孔の配設された蝶番用棚部と、こ
の蝶番用棚部の両側部と受枠の内周面とに配設された蝶
番用棚部の補強部材と、前記蝶番用棚部の蝶番用透孔に
遊設され下端に係合突起が配設され上端が蓋部裏面に回
動可能に連結された蝶番用連結金具と、この蝶番用連結
金具を基準として１２０°の位置に配設され蓋部を受枠
に対し上方に一定距離押上げ可能に配設した連結手段と
、から成る内圧逃し機構材のマンホール蓋。A receiving frame, a lid fitted to the receiving frame, a hinge shelf protruding from the inner peripheral surface of the receiving frame and provided with a hinge hole, both sides of the hinge shelf and the receiving frame. a reinforcing member for the hinge shelf disposed on the inner circumferential surface; and an engaging protrusion loosely provided in the hinge through hole of the hinge shelf, the lower end of which is rotatable to the back surface of the lid. and a connecting means arranged at a position of 120° with respect to the hinge connecting fitting so as to be able to push the lid upward a certain distance with respect to the receiving frame. Manhole cover with relief mechanism material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9737983U JPS608737U (en) | 1983-06-25 | 1983-06-25 | Manhole cover with internal pressure relief mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9737983U JPS608737U (en) | 1983-06-25 | 1983-06-25 | Manhole cover with internal pressure relief mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS608737U true JPS608737U (en) | 1985-01-22 |
| JPS625094Y2 JPS625094Y2 (en) | 1987-02-05 |
Family
ID=30231659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9737983U Granted JPS608737U (en) | 1983-06-25 | 1983-06-25 | Manhole cover with internal pressure relief mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS608737U (en) |
-
1983
- 1983-06-25 JP JP9737983U patent/JPS608737U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS625094Y2 (en) | 1987-02-05 |
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