JPS63171446U - - Google Patents
Info
- Publication number
- JPS63171446U JPS63171446U JP6227487U JP6227487U JPS63171446U JP S63171446 U JPS63171446 U JP S63171446U JP 6227487 U JP6227487 U JP 6227487U JP 6227487 U JP6227487 U JP 6227487U JP S63171446 U JPS63171446 U JP S63171446U
- Authority
- JP
- Japan
- Prior art keywords
- lid
- holder frame
- manhole
- lid holder
- buried
- 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
- 238000012856 packing Methods 0.000 description 1
Description
図面は本考案の実施態様を例示するもので、第
１図は本案マンホールの蓋の半部切裁平面図、第
２図は同要部拡大断面図、第３図は本案第二例の
マンホールの蓋の半部切裁平面図、第４図は同要
部拡大断面図、である。
１…マンホール、２…蓋受枠、３…蓋、４…ボ
ール、５…プレート、６…パツキング。
The drawings illustrate the embodiment of the present invention, and Fig. 1 is a plan view of a half cutaway of the manhole cover of the invention, Fig. 2 is an enlarged sectional view of the same main part, and Fig. 3 is a manhole of the second example of the invention. FIG. 4 is an enlarged cross-sectional view of the main part of the lid. 1... Manhole, 2... Lid holder frame, 3... Lid, 4... Ball, 5... Plate, 6... Packing.
Claims (1)
ら着脱可能に嵌合し、蓋３を水平回転させること
により蓋の一部を蓋受枠の一部に係合させてロツ
クする回転ロツク機構を設けて成るマンホール１
に於いて、蓋３が載置される蓋受枠２の段部２１
に対応する蓋３の裏面に段部２１上を転動するボ
ール４…４を適宜装着して成るマンホール。 A rotary lock in which a lid 3 is removably fitted from above to a lid holder frame 2 buried and fixed in the floor surface, and by horizontally rotating the lid 3, a part of the lid is engaged with a part of the lid holder frame and locked. Manhole 1 with a mechanism
At step 21 of the lid holder frame 2 on which the lid 3 is placed
A manhole comprising balls 4 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6227487U JPS63171446U (en) | 1987-04-24 | 1987-04-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6227487U JPS63171446U (en) | 1987-04-24 | 1987-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63171446U true JPS63171446U (en) | 1988-11-08 |
Family
ID=30896390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6227487U Pending JPS63171446U (en) | 1987-04-24 | 1987-04-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63171446U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100481945B1 (en) * | 2002-01-15 | 2005-04-13 | 안판상 | a manhole lid to prevent breakaway and to eliminate noise |
-
1987
- 1987-04-24 JP JP6227487U patent/JPS63171446U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100481945B1 (en) * | 2002-01-15 | 2005-04-13 | 안판상 | a manhole lid to prevent breakaway and to eliminate noise |