JPH0645478Y2 - Manhole lid locking device - Google Patents
Manhole lid locking deviceInfo
- Publication number
- JPH0645478Y2 JPH0645478Y2 JP1988154579U JP15457988U JPH0645478Y2 JP H0645478 Y2 JPH0645478 Y2 JP H0645478Y2 JP 1988154579 U JP1988154579 U JP 1988154579U JP 15457988 U JP15457988 U JP 15457988U JP H0645478 Y2 JPH0645478 Y2 JP H0645478Y2
- Authority
- JP
- Japan
- Prior art keywords
- locking device
- manhole cover
- manhole
- split ring
- cover locking
- 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 - Lifetime
Links
Landscapes
- Sewage (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案はマンホール蓋係止具に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a manhole lid locking device.
［従来の技術］ 便槽、下水道、浄化槽などのマンホール蓋においては、
この蓋を外れにくくするための係止具が用いられてい
る。この種の係止具としては、実公昭59-24715号、実公
昭62-31467号のものなどが知られている。[Prior Art] For manhole covers such as toilet tanks, sewers, and septic tanks,
A locking tool is used to prevent the lid from coming off. Known examples of this type of locking device include those of Japanese Utility Model Publication No. 59-24715 and Japanese Utility Model Publication No. 62-31467.
例えば、実公昭62-31467号には、頭部の裏面中心部から
下方に支軸が設けられ、支軸の下部が側方に屈曲され、
屈曲部よりも上方の軸部から斜上方に向けて分岐枝が設
けられているマンホール蓋係止具が記載されている。こ
のマンホール蓋係止具は、支軸がマンホール蓋の係止具
嵌挿孔に挿入された際に分岐枝が撓み、支軸を深く挿入
すると分岐枝が該嵌挿孔を通過して拡開する。そして、
この分岐枝が嵌挿孔の裏面縁部に当接してマンホール蓋
係止具の外れ出しを防ぐ。また、屈曲部は槽の開口縁に
装着された蓋枠に係合し、蓋と蓋枠とを連結させる。For example, in Japanese Utility Model Publication No. 62-31467, a support shaft is provided downward from the center of the back surface of the head, and the lower part of the support shaft is bent laterally.
There is described a manhole lid locking device in which a branch branch is provided obliquely upward from a shaft portion above a bent portion. In this manhole cover locking tool, the branch branch bends when the support shaft is inserted into the locking tool fitting hole of the manhole cover, and when the support shaft is deeply inserted, the branch branch passes through the fitting hole and expands. To do. And
The branch branches come into contact with the rear edge of the fitting hole to prevent the manhole cover locking tool from coming off. Further, the bent portion engages with the lid frame attached to the opening edge of the tank to connect the lid and the lid frame.
［考案が解決しようとする課題］ 上記従来のマンホール蓋係止具は、該マンホール蓋係止
具をマンホール蓋の係止具嵌挿孔に上方から所謂ワンタ
ッチで嵌挿するようにしており、従ってマンホール蓋係
止具には嵌挿時に撓み得る係合鍔や分岐枝を設ける必要
がある。[Problems to be Solved by the Invention] In the above-mentioned conventional manhole cover locking device, the manhole cover locking device is so-called one-touch fitted from above into the locking device fitting hole of the manhole cover. It is necessary to provide the manhole cover locking tool with an engaging brim or a branching branch that can be bent at the time of insertion.
これらのマンホール蓋係止具は、通常、合成樹脂にて成
形されるため、このような可撓性の係合鍔や分岐枝を構
成するためには合成樹脂としてある程度の可撓性を有す
る素材を用いる必要があり、材料選択に制限があった。
また、厳冬期など合成樹脂の弾力性が低下しているとき
にマンホールの嵌挿孔に無理矢理圧挿すると可撓部分を
損壊させるおそれもある。Since these manhole cover locking tools are usually molded from synthetic resin, a material having a certain degree of flexibility as a synthetic resin is used to form such a flexible engaging brim or branch. However, there was a limitation in material selection.
In addition, if the elasticity of the synthetic resin is reduced, such as in the severe winter, if the manhole is forcibly pressed into the fitting hole, the flexible portion may be damaged.
［課題を解決するための手段］ 本考案のマンホール蓋係止具は、頭部の裏面中心部から
下方に支軸が設けられ、支軸の下部が側方に屈曲され、
支軸の屈曲部よりも上方には１対のフランジ部が設けら
れ、該フランジ部同志の間に割リングが挟持されている
ものである。[Means for Solving the Problems] In the manhole lid locking device of the present invention, a support shaft is provided downward from the center of the back surface of the head, and the lower part of the support shaft is bent laterally.
A pair of flanges is provided above the bent portion of the support shaft, and a split ring is sandwiched between the flanges.
［作用］ 本考案のマンホール蓋係止具においては、該マンホール
蓋係止具をマンホールの係止具嵌挿孔に挿入した後、割
リングをフランジ部同志の間に装着する。これにより、
マンホール蓋係止具がマンホールに止め付けられた状態
になる。この状態において、マンホール蓋係止具をその
軸心回りに例えば90°程度回すと、屈曲部の先端がマン
ホールの取付枠などの下面に入り込み、マンホールが該
取付枠に対して連係される。[Operation] In the manhole cover locking device of the present invention, after inserting the manhole cover locking device into the locking device fitting hole of the manhole, the split ring is mounted between the flange portions. This allows
The manhole cover locking device is in a state of being fixed to the manhole. In this state, when the manhole cover locking tool is turned about its axis by, for example, about 90 °, the tip of the bent portion enters the lower surface of the manhole mounting frame or the like, and the manhole is linked to the mounting frame.
本考案のマンホール蓋係止具をマンホールに装着するに
際しては、可撓性の割リングを用いる必要がある。しか
しながら、仮に厳冬期など該割リングの弾性が乏しいと
きにマンホール蓋係止具の装着を行なおうとして割リン
グが損壊しても、該割リングのみを新品と交換すれば良
い。When the manhole cover locking device of the present invention is attached to the manhole, it is necessary to use a flexible split ring. However, even if the split ring is damaged in an attempt to mount the manhole cover locking tool when the elasticity of the split ring is poor such as in severe winter, it is sufficient to replace only the split ring with a new one.
［実施例］ 以下、図面を参照して実施例について説明する。Embodiments Embodiments will be described below with reference to the drawings.
第１図は本考案の実施例に係るマンホール蓋係止具20の
正面図、第２図は右側面図、第３図は底面図、第４図は
平面図、第５図は使用状態を示す断面図、第６図は割リ
ング30の斜視図である。FIG. 1 is a front view of a manhole cover locking device 20 according to an embodiment of the present invention, FIG. 2 is a right side view, FIG. 3 is a bottom view, FIG. 4 is a plan view, and FIG. The sectional view shown in FIG. 6 is a perspective view of the split ring 30.
符号22はマンホール蓋係止具20の頭部を示す。該頭部20
の上面には後述する屈曲部23の延在方向を示すマーク24
が設けられている。頭部22の裏面には円形突部よりなる
ガイド25が設けられている。頭部22の裏面中心からは支
軸26が延設され、その先端は水平側方に屈曲して屈曲部
23となっている。屈曲部23よりも上方の支軸26の中途部
分には１対のフランジ部28、29が設けられ、割リング30
が装着されている。Reference numeral 22 indicates the head of the manhole cover locking device 20. The head 20
A mark 24 indicating the extending direction of the bent portion 23 described later is provided on the upper surface of the
Is provided. A guide 25 including a circular protrusion is provided on the back surface of the head 22. A support shaft 26 extends from the center of the back surface of the head 22, and its tip bends horizontally to the bent portion.
It is 23. A pair of flange portions 28, 29 are provided in the middle of the support shaft 26 above the bent portion 23, and the split ring 30
Is installed.
第５図の符号31はマンホール蓋、32は係止具嵌挿孔を示
す。Reference numeral 31 in FIG. 5 indicates a manhole cover, and 32 indicates a fitting fitting insertion hole.
このマンホール蓋係止具20においては、マンホール蓋係
止具20をマンホール蓋31の係止具嵌挿孔32に挿入した
後、割リング30をフランジ部28、29同志の間に装着す
る。これにより、マンホール蓋係止具20がマンホール蓋
31に止め付けられた状態になる。この状態において、マ
ンホール蓋係止具20をその軸心回りに例えば90°程度回
すと、屈曲部23の先端がマンホール蓋31の取付枠17の下
面に入り込み、マンホール蓋31が該取付枠17に対して連
係される。（なお、この取付枠17は、マンホールの槽体
（図示略）の開口縁に設置されている。） このマンホール蓋係止具20をマンホール蓋31に装着する
に際しては、可撓性の割リング30を用いる必要がある。
しかしながら、仮に厳冬期など該割リング30の弾性が乏
しいときにマンホール蓋係止具20の装着を行なおうとし
て割リング30が損壊しても、該割リング30のみを新品と
交換すれば良い。従って、比較的高価なマンホール蓋係
止具20の予備品は全く又は殆ど不要であり、コスト安で
ある。また、割リング30のみを、高価ではあるが低温で
も弾力性のある合成樹脂製とすることも可能である。In this manhole cover locking device 20, after inserting the manhole cover locking device 20 into the locking device fitting hole 32 of the manhole cover 31, the split ring 30 is mounted between the flange portions 28 and 29. As a result, the manhole cover locking device 20 is
It will be in the state of being fixed to 31. In this state, when the manhole cover engaging member 20 is rotated about its axis, for example, about 90 °, the tip of the bent portion 23 enters the lower surface of the mounting frame 17 of the manhole cover 31, and the manhole cover 31 is attached to the mounting frame 17. Will be linked to. (Note that the mounting frame 17 is installed at the opening edge of the tank body (not shown) of the manhole.) When the manhole cover locking tool 20 is attached to the manhole cover 31, a flexible split ring is used. You need to use 30.
However, even if the split ring 30 is damaged in an attempt to attach the manhole cover locking member 20 when the split ring 30 is poor in elasticity such as in a severe winter, only the split ring 30 needs to be replaced with a new one. . Therefore, a relatively expensive manhole lid locking device 20 as a spare part is unnecessary or hardly necessary, and the cost is low. Further, only the split ring 30 can be made of a synthetic resin which is expensive but elastic at low temperature.
上記実施例は本考案の一例であり、本考案は図示以外の
態様をもとりうる。例えば、本考案では割リングの形状
などを図示以外のものとしても良い。The above embodiment is an example of the present invention, and the present invention may take modes other than those shown in the drawings. For example, in the present invention, the split ring may have a shape other than that shown.
［効果］ 本考案のマンホール蓋係止具は、マンホール蓋係止具の
本体部分とは別体の割リングのみが可撓性を有すれば良
く、同様にマンホール蓋の係止具嵌挿孔への挿入時にマ
ンホール蓋係止具の本体部分の損壊のおそれが全くな
い。また、割リングは形状が簡易であり、安価であるか
ら、予備品を常備してもマンホール蓋係止具のコストに
は殆ど影響しない。[Effect] In the manhole cover locking device of the present invention, only the split ring, which is separate from the main body of the manhole cover locking device, has flexibility, and similarly, the manhole cover locking device insertion hole. There is no possibility of damaging the body part of the manhole cover locking device when inserting into the manhole cover. Moreover, since the split ring has a simple shape and is inexpensive, even if spare parts are always stocked, the cost of the manhole cover locking device is hardly affected.
第１図は本考案の別の実施例に係るマンホール蓋係止具
の正面図、第２図は右側面図、第３図は底面図、第４図
は平面図、第５図は使用状態を示す断面図、第６図は割
リングの斜視図である。 20……マンホール蓋係止具、23……屈曲部、 30……割リング、31……マンホール蓋、 32……係止具嵌挿孔。FIG. 1 is a front view of a manhole cover locking device according to another embodiment of the present invention, FIG. 2 is a right side view, FIG. 3 is a bottom view, FIG. 4 is a plan view, and FIG. And FIG. 6 is a perspective view of the split ring. 20 …… Manhole cover lock, 23 …… Bend, 30 …… Split ring, 31 …… Manhole cover, 32 …… Lock fitting insertion hole.
Claims (1)
れ、支軸の下部が側方に屈曲され、支軸の屈曲部よりも
上方には１対のフランジ部が設けられ、該フランジ部同
志の間に割リングが挟持されているマンホール蓋係止
具。1. A support shaft is provided downward from the center of the back surface of the head, a lower portion of the support shaft is bent laterally, and a pair of flanges is provided above the bent portion of the support shaft. A manhole cover locking device in which a split ring is sandwiched between the flange portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988154579U JPH0645478Y2 (en) | 1988-11-28 | 1988-11-28 | Manhole lid locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988154579U JPH0645478Y2 (en) | 1988-11-28 | 1988-11-28 | Manhole lid locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0278643U JPH0278643U (en) | 1990-06-18 |
| JPH0645478Y2 true JPH0645478Y2 (en) | 1994-11-24 |
Family
ID=31431438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988154579U Expired - Lifetime JPH0645478Y2 (en) | 1988-11-28 | 1988-11-28 | Manhole lid locking device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645478Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6111208B2 (en) * | 2014-01-14 | 2017-04-05 | 中部美化企業株式会社 | Lid member |
| KR101458360B1 (en) * | 2014-04-30 | 2014-11-05 | 주안글라스화이바 주식회사 | For easy release when inoperative locks for manholes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0312828Y2 (en) * | 1985-04-01 | 1991-03-26 |
-
1988
- 1988-11-28 JP JP1988154579U patent/JPH0645478Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0278643U (en) | 1990-06-18 |
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