JPS6410555U - - Google Patents
Info
- Publication number
- JPS6410555U JPS6410555U JP10580387U JP10580387U JPS6410555U JP S6410555 U JPS6410555 U JP S6410555U JP 10580387 U JP10580387 U JP 10580387U JP 10580387 U JP10580387 U JP 10580387U JP S6410555 U JPS6410555 U JP S6410555U
- Authority
- JP
- Japan
- Prior art keywords
- opening
- closing
- head
- hole
- support shaft
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 150000002505 iron Chemical class 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
Description
第１図は本考案の一実施例に係る鉄蓋の孔開閉
構造の縦断面図、第２図は第１図の平面図、第３
図は第１図中の鉄蓋の裏面図、第４図は第１図中
の揺動閉塞部材の斜視図、第５図は第１図中の鉄
蓋の開口部の側面図、第６図は第１図の孔開閉構
造の開放時の縦断面図、第７図は本考案による孔
開閉構造を備えた地下構造物の上部の縦断面図で
ある。
４……鉄蓋、７……孔開閉構造、１４……開口
、１５……支軸、１６……揺動閉塞部材、１７…
…頭部、１８……おもり部、１９……中間部、２
０……鍵形の溝、２１……軸穴。
Fig. 1 is a longitudinal sectional view of a hole opening/closing structure of an iron lid according to an embodiment of the present invention, Fig. 2 is a plan view of Fig. 1, and Fig. 3
The figures are a back view of the iron cover in Fig. 1, Fig. 4 is a perspective view of the swinging closing member in Fig. 1, Fig. 5 is a side view of the opening of the iron cover in Fig. 1, and Fig. 6 is a side view of the opening of the iron cover in Fig. 1. The figure is a vertical sectional view of the hole opening/closing structure shown in FIG. 1 when it is opened, and FIG. 7 is a vertical sectional view of the upper part of the underground structure equipped with the hole opening/closing structure according to the present invention. 4... Iron lid, 7... Hole opening/closing structure, 14... Opening, 15... Support shaft, 16... Swinging closing member, 17...
...Head part, 18...Weight part, 19...Middle part, 2
0...Key-shaped groove, 21...Shaft hole.
Claims (1)
記鉄蓋の周縁部に開口を形成するとともに該開口
の両側に支軸を形成し、一端に前記開口を閉塞す
る頭部を有しかつ他端におもり部を有する揺動閉
塞部材の中間部の両側に鍵形の溝を入口とする軸
穴を形成し、該軸穴を前記支軸に嵌合させること
により、前記頭部を押し下げたとき前記開口が開
き、かつ常態では前記おもり部の前記支軸まわり
の回転力で前記頭部が前記開口を閉塞する状態で
前記揺動閉塞部材が軸支されることを特徴とする
鉄蓋の孔開閉構造。 In the hole opening/closing structure of an iron lid for an underground structure, an opening is formed in the peripheral edge of the iron lid, a support shaft is formed on both sides of the opening, a head is provided at one end for closing the opening, and the other is provided with a head for closing the opening. A shaft hole with a key-shaped groove as an entrance is formed on both sides of the intermediate portion of the swinging closure member having a weight portion at the end, and the head is pushed down by fitting the shaft hole with the support shaft. The iron lid is characterized in that when the opening is opened, and in a normal state, the swinging closing member is pivotally supported in a state in which the head closes the opening by the rotational force of the weight portion around the support shaft. Hole opening/closing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987105803U JPH0617874Y2 (en) | 1987-07-09 | 1987-07-09 | Hole opening and closing structure of iron lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987105803U JPH0617874Y2 (en) | 1987-07-09 | 1987-07-09 | Hole opening and closing structure of iron lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6410555U true JPS6410555U (en) | 1989-01-20 |
| JPH0617874Y2 JPH0617874Y2 (en) | 1994-05-11 |
Family
ID=31338745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987105803U Expired - Lifetime JPH0617874Y2 (en) | 1987-07-09 | 1987-07-09 | Hole opening and closing structure of iron lid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617874Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56130053U (en) * | 1980-12-10 | 1981-10-02 |
-
1987
- 1987-07-09 JP JP1987105803U patent/JPH0617874Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56130053U (en) * | 1980-12-10 | 1981-10-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0617874Y2 (en) | 1994-05-11 |