JPS6447851U - - Google Patents
Info
- Publication number
- JPS6447851U JPS6447851U JP1987139015U JP13901587U JPS6447851U JP S6447851 U JPS6447851 U JP S6447851U JP 1987139015 U JP1987139015 U JP 1987139015U JP 13901587 U JP13901587 U JP 13901587U JP S6447851 U JPS6447851 U JP S6447851U
- Authority
- JP
- Japan
- Prior art keywords
- lid
- hook member
- arm
- pivotally supported
- opening
- 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
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1427—Locking devices
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987139015U JPH0540117Y2 (no) | 1987-09-11 | 1987-09-11 | |
| KR1019880002259A KR930000631B1 (ko) | 1987-09-11 | 1988-03-04 | 지하구조물용 자물쇠기구 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987139015U JPH0540117Y2 (no) | 1987-09-11 | 1987-09-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6447851U true JPS6447851U (no) | 1989-03-24 |
| JPH0540117Y2 JPH0540117Y2 (no) | 1993-10-12 |
Family
ID=15235484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987139015U Expired - Lifetime JPH0540117Y2 (no) | 1987-09-11 | 1987-09-11 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0540117Y2 (no) |
| KR (1) | KR930000631B1 (no) |
-
1987
- 1987-09-11 JP JP1987139015U patent/JPH0540117Y2/ja not_active Expired - Lifetime
-
1988
- 1988-03-04 KR KR1019880002259A patent/KR930000631B1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR890005356A (ko) | 1989-05-13 |
| KR930000631B1 (ko) | 1993-01-28 |
| JPH0540117Y2 (no) | 1993-10-12 |