JPS648004U - - Google Patents
Info
- Publication number
- JPS648004U JPS648004U JP10172087U JP10172087U JPS648004U JP S648004 U JPS648004 U JP S648004U JP 10172087 U JP10172087 U JP 10172087U JP 10172087 U JP10172087 U JP 10172087U JP S648004 U JPS648004 U JP S648004U
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- handle
- attached
- hole
- 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
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例の説明図、第２図は
上記一実施例の断面図、第３図は第２図の−
矢視図の１部、第４図は従来の装置の断面図、第
５図は第４図の−矢視図の１部、第６図は従
来の装置の説明図である。
１……マンホール座、２……ガスケツト、３…
…マンホールインサート、４……マンホール蓋、
５……さら小ねじ、６……六角ボルト、７……取
つ手、８……ねじ穴。
FIG. 1 is an explanatory diagram of one embodiment of the present invention, FIG. 2 is a cross-sectional view of the above-mentioned embodiment, and FIG. 3 is a -
4 is a cross-sectional view of a conventional device, FIG. 5 is a part of a view taken along the - arrow in FIG. 4, and FIG. 6 is an explanatory diagram of the conventional device. 1... Manhole seat, 2... Gasket, 3...
...manhole insert, 4...manhole cover,
5... Countersunk screw, 6... Hex bolt, 7... Handle, 8... Screw hole.
Claims (1)
シエル構造の板状体で形成されるマンホールイン
サートにおいて、マンホール蓋と接する面に取付
け取外しのための取つ手の取付け用の穴を設け、
同穴に取付け取外し可能に取つ手を取付けたこと
を特徴とする蒸気発生器の一次側マンホールイン
サート。 In a manhole insert formed of a plate-shaped body with a shell structure that is installed between a manhole cover and a manhole seat, a hole for attaching a handle for attachment and detachment is provided on the surface in contact with the manhole cover,
A manhole insert on the primary side of a steam generator, characterized in that a handle is attached to the same hole so that it can be attached and removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10172087U JPS648004U (en) | 1987-07-03 | 1987-07-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10172087U JPS648004U (en) | 1987-07-03 | 1987-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS648004U true JPS648004U (en) | 1989-01-17 |
Family
ID=31330971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10172087U Pending JPS648004U (en) | 1987-07-03 | 1987-07-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS648004U (en) |
-
1987
- 1987-07-03 JP JP10172087U patent/JPS648004U/ja active Pending