JPS6314647U - - Google Patents
Info
- Publication number
- JPS6314647U JPS6314647U JP10916086U JP10916086U JPS6314647U JP S6314647 U JPS6314647 U JP S6314647U JP 10916086 U JP10916086 U JP 10916086U JP 10916086 U JP10916086 U JP 10916086U JP S6314647 U JPS6314647 U JP S6314647U
- Authority
- JP
- Japan
- Prior art keywords
- lid
- receiving frame
- hexagonal head
- head screw
- cap
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
Description
図面は本考案の一実施例を示し、第１図はマン
ホール蓋と受枠を係合ロツクする、ねじ棒取付部
の要部を示す側面断面図。第２，３，４図は六角
頭付ねじ棒の上部に嵌入したキヤツプを取外し、
更に六角頭付ねじ棒を回し取外す手順を示す側面
図である。
１…蓋、２…受枠、３…孔、４…ねじ孔、５…
六角頭付ねじ棒、６…六角頭付ねじ棒の頭部、７
…マグネツト片付キヤツプ、８…マグネツト式専
用キー、９…３用蓋。
The drawings show an embodiment of the present invention, and FIG. 1 is a side sectional view showing the main part of the threaded rod attachment part that engages and locks the manhole cover and the receiving frame. Figures 2, 3, and 4 show removing the cap fitted into the top of the hexagonal head screw rod.
It is a side view showing the procedure for further turning and removing the hexagonal head screw rod. 1... Lid, 2... Receiving frame, 3... Hole, 4... Screw hole, 5...
Hexagonal head screw rod, 6... Head of hexagonal head screw rod, 7
...cap with magnetic detachment, 8...magnetic special key, 9...lid for 3.
Claims (1)
された蓋１とからなる地下構造物の蓋において、
蓋１の上面外縁に孔３を開設し、受枠２の内部周
縁にも上記孔３と相対向する位置にねじ孔４を設
け、孔３および４を介して蓋係合用六角頭付ねじ
棒５をねじ込み、蓋と受枠とを係合ロツクし、か
つこの六角頭付ねじ棒５の頭部６にはマグネツト
片付キヤツプ７を嵌入し、このキヤツプ７を取除
かなければ、六角頭付ねじ棒５は取外せない構造
とし、またキヤツプ７の取外しにはマグネツト式
専用キー８を使用しなければ取外せない構造とし
た事を特徴とした、地下構造物用蓋の係合ロツク
構造。 In the lid of an underground structure consisting of a receiving frame 2 and a lid 1 that fits into the receiving frame and is arranged to be openable and closable,
A hole 3 is provided on the outer edge of the upper surface of the lid 1, and a screw hole 4 is provided on the inner peripheral edge of the receiving frame 2 at a position opposite to the hole 3, and a hexagonal head screw rod 5 for lid engagement is inserted through the holes 3 and 4. Screw in the hexagonal head screw to engage and lock the lid and the receiving frame, and fit the magnetic cap 7 into the head 6 of the hexagonal head screw rod 5. If this cap 7 is not removed, the hexagonal head screw This locking structure for an underground structure lid is characterized in that the rod 5 cannot be removed and the cap 7 cannot be removed unless a special magnetic key 8 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10916086U JPS6314647U (en) | 1986-07-15 | 1986-07-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10916086U JPS6314647U (en) | 1986-07-15 | 1986-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6314647U true JPS6314647U (en) | 1988-01-30 |
Family
ID=30987010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10916086U Pending JPS6314647U (en) | 1986-07-15 | 1986-07-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6314647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100757359B1 (en) * | 2006-05-18 | 2007-09-11 | 김향숙 | Loose preventing device of connecting bolt for manhole cover |
-
1986
- 1986-07-15 JP JP10916086U patent/JPS6314647U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100757359B1 (en) * | 2006-05-18 | 2007-09-11 | 김향숙 | Loose preventing device of connecting bolt for manhole cover |