JPS6277237U - - Google Patents
Info
- Publication number
- JPS6277237U JPS6277237U JP16738785U JP16738785U JPS6277237U JP S6277237 U JPS6277237 U JP S6277237U JP 16738785 U JP16738785 U JP 16738785U JP 16738785 U JP16738785 U JP 16738785U JP S6277237 U JPS6277237 U JP S6277237U
- Authority
- JP
- Japan
- Prior art keywords
- hole
- bolt
- receiving frame
- 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.)
- Pending
Links
- 238000012423 maintenance Methods 0.000 claims 1
Description
図面は本考案の実施態様を例示するもので、第
１図は本案装置を具備したマンホールの平面図、
第２図は同要部拡大平面図、第３図は第２図Ａ―
Ａ線に於ける縦断面図、第４図は第２図Ｂ―Ｂ線
に於ける縦断面図である。
１……マンホール蓋、２……ボルト、３……孔
、４……受枠、５……受座、５１……螺孔。
The drawings illustrate embodiments of the present invention, and FIG. 1 is a plan view of a manhole equipped with the proposed device;
Figure 2 is an enlarged plan view of the same main part, Figure 3 is Figure 2 A-
FIG. 4 is a longitudinal sectional view taken along line A, and FIG. 4 is a longitudinal sectional view taken along line BB in FIG. 1... Manhole cover, 2... Bolt, 3... Hole, 4... Receiving frame, 5... Receiving seat, 5 1 ... Screw hole.
Claims (1)
孔３を形成し、同蓋１が嵌合すべき受枠４の内周
壁の一部でかつ受枠４の下部フランジ４１より離
れた位置に、前記ボルト２の螺子部２１が螺合す
べき螺孔５１を形成した受座５を一体的に設けて
成るマンホールの気密保持装置。 A hole 3 into which the bolt 2 is inserted is formed in a part of the manhole cover 1, and a hole 3 is formed in a part of the inner circumferential wall of the receiving frame 4 into which the cover 1 is to fit, and at a position away from the lower flange 41 of the receiving frame 4. This airtight maintenance device for a manhole is integrally provided with a seat 5 having a screw hole 51 into which the threaded portion 21 of the bolt 2 is screwed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16738785U JPS6277237U (en) | 1985-10-30 | 1985-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16738785U JPS6277237U (en) | 1985-10-30 | 1985-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6277237U true JPS6277237U (en) | 1987-05-18 |
Family
ID=31099270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16738785U Pending JPS6277237U (en) | 1985-10-30 | 1985-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6277237U (en) |
-
1985
- 1985-10-30 JP JP16738785U patent/JPS6277237U/ja active Pending