JPS608738U - Manhole cover with internal pressure relief mechanism - Google Patents
Manhole cover with internal pressure relief mechanismInfo
- Publication number
- JPS608738U JPS608738U JP9738083U JP9738083U JPS608738U JP S608738 U JPS608738 U JP S608738U JP 9738083 U JP9738083 U JP 9738083U JP 9738083 U JP9738083 U JP 9738083U JP S608738 U JPS608738 U JP S608738U
- Authority
- JP
- Japan
- Prior art keywords
- hinge
- receiving frame
- shelf
- internal pressure
- manhole cover
- 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図は蓋部が沖上げられた時に自動車のタイ
ヤが乗上げた状態の断面図、第５図及び第６図は梁材の
実施例の断面斜視図を表わす。
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、４ｃ、 ４
ｄ・・・・・・梁材、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、２
０・・・・・・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 being pushed up by the water flow, and Figure 4 is the cover being lifted offshore. FIGS. 5 and 6 are cross-sectional views of the embodiment of the beam material, respectively, showing a cross-sectional view of the car when the vehicle is hit by a tire. FIGS. 1... Manhole cover, 2... Receiving frame, 3
...Lid part, 4...Hinge shelf part, 4a,
4b... Side plate of hinge shelf, 4c, 4
d... Beam material, 5... Elongated hole for hinge, 7.
...Hinge standing wall, 8...Circular part, 9.
...Hinge connection fitting, 10...Protrusion, 2
0...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、この補強部材の両側部から受枠
の内周面に架設した梁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部金具と、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; a beam member extending from both sides of the reinforcing member to the inner circumferential surface of the receiving frame; and a beam member provided loosely in the hinge through hole of the hinge shelf; A hinge connecting fitting having an engaging protrusion at the lower end and rotatably connected to the back surface of the lid at the upper end, and a hinge connecting fitting which is arranged at a position of 120° with respect to the hinge connecting fitting and which connects the lid to the receiving frame. A manhole cover is an internal pressure relief mechanism material consisting of a connecting means that can be pushed up a certain distance upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9738083U JPS608738U (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 |
|---|---|---|---|
| JP9738083U JPS608738U (en) | 1983-06-25 | 1983-06-25 | Manhole cover with internal pressure relief mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS608738U true JPS608738U (en) | 1985-01-22 |
| JPS625095Y2 JPS625095Y2 (en) | 1987-02-05 |
Family
ID=30231661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9738083U Granted JPS608738U (en) | 1983-06-25 | 1983-06-25 | Manhole cover with internal pressure relief mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS608738U (en) |
-
1983
- 1983-06-25 JP JP9738083U patent/JPS608738U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS625095Y2 (en) | 1987-02-05 |
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