JPS5853334Y2 - manhole - Google Patents
manholeInfo
- Publication number
- JPS5853334Y2 JPS5853334Y2 JP14029179U JP14029179U JPS5853334Y2 JP S5853334 Y2 JPS5853334 Y2 JP S5853334Y2 JP 14029179 U JP14029179 U JP 14029179U JP 14029179 U JP14029179 U JP 14029179U JP S5853334 Y2 JPS5853334 Y2 JP S5853334Y2
- Authority
- JP
- Japan
- Prior art keywords
- lid
- manhole
- inner lid
- locking piece
- entrance 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.)
- Expired
Links
Description
【考案の詳細な説明】
本考案は、マンホール、特にその入口開口部の構造に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a manhole, particularly its entrance opening.
一般に、マンホールとは、地下溝内等の点検、清掃のた
め人が出入りできるようにした穴のことであり、従って
、その大きさは人が出入りできる程度であり、その入口
開口部には鉄製の蓋が設けられている。In general, a manhole is a hole that allows people to enter and exit underground trenches for inspection and cleaning. A lid is provided.
しかしながら、従来この蓋は、単に開口部に載置されて
いるのみであって、そのため、子供が好奇心からこの蓋
を取り外し内部を覗こうとして落下するという危険があ
り、事実そのような事故も発生している。However, in the past, this lid was simply placed on the opening, and as a result, there was a risk that a child might remove the lid out of curiosity and try to look inside and fall, and in fact, such accidents have also occurred. are doing.
このような事故を防止する方法としては、蓋の内方に更
に落下防止用の内蓋を設けることであるが、しかし、例
えそのようにしたとしても、この内蓋自体が容易に取り
外せるものであっては、効果が薄れてしまう。One way to prevent such accidents is to install an inner lid inside the lid to prevent it from falling, but even if you do that, the inner lid itself cannot be easily removed. Otherwise, the effect will be diminished.
本考案は、かかる欠点を解消することを目的としてなさ
れたもので、マンホールの入口開口部に落下防止用の内
蓋を設けるのみならず、この内蓋の取り外しを容易に行
なうことができないようにして、該内蓋自身が取り外さ
れる危険をも少なくして、より安全性を高めたものであ
る。The present invention has been developed with the aim of eliminating such drawbacks, and it not only provides an inner cover at the entrance opening of the manhole to prevent falls, but also provides a structure that prevents the inner cover from being easily removed. This also reduces the risk of the inner lid itself being removed, further increasing safety.
本考案の構成を一実施例を示す図面に基づいて説明する
と、第1図において、1はマンホールの入口開口部、2
は該開口部1を覆う鉄製の蓋体、3は該蓋体2の内方に
おいて、入口開口部1に取り外し可能に取付けられる内
蓋である。The structure of the present invention will be explained based on drawings showing one embodiment. In FIG. 1, 1 is an entrance opening of a manhole;
3 is an iron lid that covers the opening 1, and 3 is an inner lid that is removably attached to the inlet opening 1 inside the lid 2.
上記において、本考案にかかる内蓋3は、第2図で示す
ように、鉄筋からなる外側環状枠体4とホースが入る程
度の径の内側環状枠体8、及び両者間に渡した鉄筋5と
からなるとともに、更に、外側環状枠体4の外周に複数
の掛止片9を外方へ向けて突設したものであり、本実施
例においては、このような内蓋3を、入口開口部1に取
付けるものである。In the above, the inner lid 3 according to the present invention, as shown in FIG. 2, includes an outer annular frame 4 made of reinforcing bars, an inner annular frame 8 having a diameter large enough to accommodate a hose, and reinforcing bars 5 passed between the two. In addition, a plurality of locking pieces 9 are provided on the outer periphery of the outer annular frame 4 to protrude outward, and in this embodiment, such an inner cover 3 is connected to the entrance opening. It is attached to section 1.
そして、入口開口部1におけるマンホール壁には、第3
図で示すように、まず、前記蓋体2を載置する段部6が
形成されており、更に、この段部6の底部より、前記係
止片9の取付は間隔に対応する縦溝10が形成され、こ
の縦溝10の下端に連設して、横溝11が形成され、こ
の横溝11の先端より更に下向きに凹所12が形成され
ている。Then, on the manhole wall at the entrance opening 1, there is a third
As shown in the figure, first, a step 6 is formed on which the lid 2 is placed, and furthermore, from the bottom of this step 6, the locking piece 9 is attached to a vertical groove 10 corresponding to the interval. A lateral groove 11 is formed in series with the lower end of the vertical groove 10, and a recess 12 is formed further downward from the tip of the lateral groove 11.
即ち、前記内蓋3は、まず、その係止片9を前記縦溝1
0へ適合して挿入し、しかる後横溝11に沿って横方向
へ回動させて、凹所12へ嵌合させて装着するようにな
っている。That is, the inner lid 3 first has its locking piece 9 aligned with the vertical groove 1.
0 and then laterally rotated along the lateral groove 11 to fit into the recess 12 and be installed.
従って、これを取り外すには、内蓋蓋3を持ち上げた後
横に廻し、再び持ち上げなければならず、取り外しが面
倒で、子供には解かりにくいものとしである。Therefore, in order to remove this, it is necessary to lift the inner cover 3, turn it sideways, and lift it again, which makes removal troublesome and difficult for children to understand.
この場合、本実施例では、横溝11に加えて更に凹所1
2を形成しているが、このような凹所12を形成せずと
も、縦溝10と横溝11のみであっても、小さな子供に
は、極めて解かりにくい構造であるから、内蓋3が取り
外される危険は少なく、この点がらすれば、必ずしも凹
所12は設ける必要はない。In this case, in this embodiment, in addition to the lateral groove 11, there is also a recess 1.
However, even if such a recess 12 is not formed, even if there are only vertical grooves 10 and horizontal grooves 11, the structure is extremely difficult for small children to understand, so the inner lid 3 is difficult to understand. There is little risk of it being removed, and in view of this, it is not necessarily necessary to provide the recess 12.
また、前記内蓋3は、外側環状枠体4にホースが入る程
度の間隔を置いた平行な鉄筋を渡した構造のもの等、そ
の他種々の構造が考えられる。In addition, the inner lid 3 may have various other structures, such as a structure in which parallel reinforcing bars are passed through the outer annular frame 4 at intervals sufficient to accommodate a hose.
本考案は上記のような構成であり、このように本考案に
おいては、蓋体の内方に内部が見通せる落下防止用の内
蓋を設けているから、子供が蓋体を取り外し内部を覗こ
うとして落下しそうになった場合でも、この内蓋によっ
て事故の発生を防ぐことができ、子供等を安全に遊ばせ
ることができる。The present invention has the above-mentioned structure, and since the present invention has an inner lid inside the lid body to prevent falling from which the inside can be seen, it is difficult for children to remove the lid body and look inside. Even if the product is about to fall, the inner lid can prevent an accident from occurring, allowing children and others to play safely.
特に、本考案では、かかる落下防止用の内蓋は、少なく
とも一端横へ廻してからでないと持ち上げられないから
、子供にとっては取り外し方法が解かりに<<、そのた
め、この内蓋が取り外される危険が少なく、より安全性
が高いという効果がある。In particular, in the present invention, the inner lid for preventing falling cannot be lifted until at least one end is turned sideways, making it difficult for children to figure out how to remove it. It has the effect of being less expensive and safer.
第1図は、本考案の一実施例を示すマンホール人口開口
部の斜視図、第2図は内蓋の斜視図、第3図は、人口開
口部におけるマンホール壁の一部正面図である。
1・・・・・・入口開口部、2・・・・・・蓋体、3・
・・・・・内蓋、9・・・・・・係止片、10・・・・
・・縦溝、11・・・・・・横溝。FIG. 1 is a perspective view of an artificial manhole opening showing an embodiment of the present invention, FIG. 2 is a perspective view of an inner cover, and FIG. 3 is a partial front view of a manhole wall at the artificial opening. 1... Inlet opening, 2... Lid body, 3.
...Inner lid, 9...Latching piece, 10...
...Vertical groove, 11...Horizontal groove.
Claims (1)
蓋体の内方に、内部が見通せる落下防止用の内蓋を設け
、かつ、この内蓋外周に係止片を突設し、マンホール壁
には、前記係止片が通る縦溝と該縦溝の下端に連設する
機構とを設けたことを特徴とするマンホール。At the entrance opening of the manhole, an inner lid for preventing falls is provided inside the lid covering the entrance opening, and a locking piece is provided protruding from the outer periphery of the inner lid, and a locking piece is provided on the outer periphery of the inner lid. The manhole is characterized in that it is provided with a vertical groove through which the locking piece passes, and a mechanism connected to a lower end of the vertical groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14029179U JPS5853334Y2 (en) | 1979-10-08 | 1979-10-08 | manhole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14029179U JPS5853334Y2 (en) | 1979-10-08 | 1979-10-08 | manhole |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5659253U JPS5659253U (en) | 1981-05-21 |
JPS5853334Y2 true JPS5853334Y2 (en) | 1983-12-05 |
Family
ID=29371631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14029179U Expired JPS5853334Y2 (en) | 1979-10-08 | 1979-10-08 | manhole |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5853334Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4079172A (en) * | 1977-03-30 | 1978-03-14 | Union Carbide Corporation | Galvanic cell having a high pressure vent closure |
KR20040009695A (en) * | 2002-07-24 | 2004-01-31 | 주식회사 삼영정화조 | A locking device of a manhole cover |
-
1979
- 1979-10-08 JP JP14029179U patent/JPS5853334Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5659253U (en) | 1981-05-21 |
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