JPH0372692U - - Google Patents
Info
- Publication number
- JPH0372692U JPH0372692U JP13243189U JP13243189U JPH0372692U JP H0372692 U JPH0372692 U JP H0372692U JP 13243189 U JP13243189 U JP 13243189U JP 13243189 U JP13243189 U JP 13243189U JP H0372692 U JPH0372692 U JP H0372692U
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- screw hole
- cover
- frame
- screwed
- 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
- 239000010865 sewage Substances 0.000 claims 1
Description
第１図はこの考案の実施例の断面図、第２図は
実施例に用いるボルトの斜視図、第３図は従来例
の断面図である。
FIG. 1 is a sectional view of an embodiment of this invention, FIG. 2 is a perspective view of a bolt used in the embodiment, and FIG. 3 is a sectional view of a conventional example.
Claims (1)
において、マンホール枠に形成した蓋嵌合溝の底
面に対向してマンホール蓋に上下に貫通するネジ
穴が設けられると共に、このネジ穴に頭部に回転
操作用の係合溝を備えたボルトが螺着されてなる
ことを特徴とする汚水浄化槽のマンホール構造。 At the fitting part of the manhole cover to the manhole frame, a screw hole is provided that passes vertically through the manhole cover, facing the bottom surface of the cover fitting groove formed in the manhole frame, and a screw hole is provided in the head of this screw hole for rotational operation. A manhole structure for a sewage septic tank, characterized in that a bolt with an engagement groove is screwed into the structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13243189U JPH0372692U (en) | 1989-11-14 | 1989-11-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13243189U JPH0372692U (en) | 1989-11-14 | 1989-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0372692U true JPH0372692U (en) | 1991-07-23 |
Family
ID=31679889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13243189U Pending JPH0372692U (en) | 1989-11-14 | 1989-11-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0372692U (en) |
-
1989
- 1989-11-14 JP JP13243189U patent/JPH0372692U/ja active Pending
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