JP2686583B2 - Manhole cover structure - Google Patents
Manhole cover structureInfo
- Publication number
- JP2686583B2 JP2686583B2 JP4144840A JP14484092A JP2686583B2 JP 2686583 B2 JP2686583 B2 JP 2686583B2 JP 4144840 A JP4144840 A JP 4144840A JP 14484092 A JP14484092 A JP 14484092A JP 2686583 B2 JP2686583 B2 JP 2686583B2
- Authority
- JP
- Japan
- Prior art keywords
- manhole cover
- outer peripheral
- receiving frame
- manhole
- cover structure
- 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
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はマンホ−ル蓋受枠の蓋収
容孔にマンホ−ル蓋を収容したマンホ−ル蓋構造に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manhole cover structure in which a manhole cover is received in a cover receiving hole of a manhole cover receiving frame.
【０００２】[0002]
【従来の技術】マンホ−ル蓋構造としては図５に示すも
のが知られている。このマンホ−ル蓋構造は、マンホ−
ル蓋受枠Ａを頂Ｂが路面Ｃと同一の高さとなるように埋
め込み、また蓋収容孔Ｄにマンホ−ル蓋Ｅを収容したも
のである。マンホ−ル蓋受枠Ａの外周部には外側に向っ
て下降する傾斜案内面Ｆが形成され、スパイクタイヤや
除雪車のチェ−ンによって路面Ｃが削られても（符号Ｇ
参照）、除雪車の除雪板Ｈが外周部にひっかからないで
頂Ｂに案内されるように構成されている。2. Description of the Related Art A manhole cover structure shown in FIG. 5 is known. This manhole cover structure is a manhole
The lid cover frame A is embedded so that the top B has the same height as the road surface C, and the manhole cover E is housed in the cover housing hole D. An inclined guide surface F that descends outward is formed on the outer peripheral portion of the manhole cover receiving frame A, and even if the road surface C is scraped off by a spike tire or a chain of a snowplow (reference numeral G).
), The snow removing plate H of the snow removing vehicle is guided to the top B without being caught in the outer peripheral portion.
【０００３】[0003]
【発明が解決しようとする課題】ところで、マンホ−ル
蓋Ｅは錆の発生や土砂等の侵入のために上昇したり傾い
たりする。したがって、除雪板Ｈはマンホ−ル蓋受枠Ａ
の前端を通過してもマンホ−ル蓋Ｅにひっかかり大事故
に至るおそれがある。By the way, the manhole cover E rises and tilts due to the generation of rust and the intrusion of earth and sand. Therefore, the snow removing plate H is the manhole cover receiving frame A.
Even if the manhole cover E is passed through, the manhole cover E may be caught and a serious accident may occur.
【０００４】そこで、本発明はマンホ−ル蓋が除雪板の
通過を妨げることがないマンホ−ル蓋構造の提供を目的
とする。Therefore, an object of the present invention is to provide a manhole cover structure in which the manhole cover does not prevent passage of the snow removing plate.
【０００５】[0005]
【課題を解決するための手段】この目的を達成するた
め、本発明のマンホール蓋構造はマンホール蓋受枠の蓋
収容孔に、マンホール蓋上面がこのマンホール蓋受枠の
頂と同じ高さに又は頂より低くなるようにマンホール蓋
を収容したマンホール蓋構造であって、前記マンホール
蓋の上面の外周端部を、外周端より１．５ｍｍ以上内側
から外側に向って下降傾斜させ、この外周端から外周面
に沿って１．５ｍｍ以上下側に到達させて、除雪板のひ
っかかりを防ぐ傾斜案内面を形成したものである。In order to achieve this object, the manhole cover structure of the present invention has a manhole cover receiving frame with a cover receiving hole, and the manhole cover upper surface is at the same height as or above the manhole cover receiving frame. A manhole cover structure for accommodating a manhole cover so as to be lowered, wherein an outer peripheral end portion of an upper surface of the manhole cover is inclined downward from the outer peripheral end by 1.5 mm or more from the inner side to the outer side. A sloped guide surface is formed to reach the lower side by 1.5 mm or more to prevent the snow removal plate from being caught.
【０００６】本発明のマンホール蓋構造では、マンホー
ル蓋の上面の外周端部を下降傾斜させる。下降傾斜の開
始端は外周端より１．５ｍｍ以上内側であり、終了端は
外周端から外周面に沿って１．５ｍｍ以上下側である。
したがって、外周端部分は外周面方向に１．５ｍｍ以上
及び上面方向に１．５ｍｍ以上の部分が取り去られるこ
ととなる。In the manhole cover structure of the present invention, the outer peripheral end of the upper surface of the manhole cover is inclined downward. The start end of the descending slope is 1.5 mm or more inside from the outer peripheral end, and the end end is 1.5 mm or more downward from the outer peripheral end along the outer peripheral surface.
Therefore, the outer peripheral end portion is removed by 1.5 mm or more in the outer peripheral surface direction and 1.5 mm or more in the upper surface direction.
【０００７】[0007]
【作用】マンホール蓋の上面はマンホール蓋受枠の頂と
同じ高さになるように構成されることもあるが、マンホ
ール蓋が上昇したり傾いたりしてもマンホール蓋がマン
ホール蓋受枠の頂より大きく突出することがないように
マンホール蓋受枠の頂より低くなるように構成されるこ
ともある。[Function] Although the upper surface of the manhole cover may be configured to be at the same height as the top of the manhole cover receiving frame, the manhole cover is larger than the top of the manhole cover receiving frame even if the manhole cover rises or tilts. It may be configured to be lower than the top of the manhole cover receiving frame so as not to project.
【０００８】実質的に除雪板のひっかかりを防ぐ傾斜案
内面を構成するためには、マンホール蓋の上面の外周端
部を、外周端より１．５ｍｍ以上内側から外側に向って
下降傾斜させ、この外周端から外周面に沿って１．５ｍ
ｍ以上下側に到達させることが必要である。In order to construct an inclined guide surface that substantially prevents the snow removing plate from being caught, the outer peripheral edge of the upper surface of the manhole cover is inclined downward from the inner edge to the outer edge by 1.5 mm or more, 1.5m along the outer peripheral surface from the outer peripheral edge
It is necessary to reach the lower side by m or more.
【０００９】[0009]
【実施例】以下、本発明の実施例を図１乃至図４を参照
して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
【００１０】図１は本発明を適用するための図５とは別
の構成のマンホール蓋構造を示す断面図である。FIG. 1 is a sectional view showing a manhole cover structure for applying the present invention, which has a different structure from that of FIG.
【００１１】マンホ−ル蓋受枠１の外周部には水平面状
の頂３から外側に向って下降する傾斜案内面５が形成さ
れている。An inclined guide surface 5 is formed on the outer peripheral portion of the manhole cover receiving frame 1 so as to descend outward from a horizontal top 3.
【００１２】蓋収容孔７にはマンホ−ル蓋９が収容され
ているが、このマンホ−ル蓋９の上面１１はマンホ−ル
蓋受枠１の頂３よりも低く位置している。上面１１を頂
３より１mm乃至３mm低くすることが好ましい。A manhole cover 9 is housed in the cover housing hole 7, and an upper surface 11 of the manhole cover 9 is located lower than the top 3 of the manhole cover receiving frame 1. It is preferred that the top surface 11 be 1 mm to 3 mm lower than the top 3.
【００１３】なお、図中１３は蝶番機構、１５はロック
機構である。In the figure, 13 is a hinge mechanism and 15 is a lock mechanism.
【００１４】図２はマンホ−ル蓋受枠１の外周部部分の
拡大断面図である。FIG. 2 is an enlarged sectional view of the outer peripheral portion of the manhole cover receiving frame 1.
【００１５】傾斜案内面５の下端の深さは頂３から５mm
乃至３５mm、また路面１７の高さは頂３から１０mm程度
であることが好ましい。このように構成することにより
路面１７を頻繁に補修する必要がなくなる。The depth of the lower end of the inclined guide surface 5 is 5 mm from the top 3
The height of the road surface 17 is preferably about 3 to 10 mm. With this structure, it is not necessary to frequently repair the road surface 17.
【００１６】図３は本発明に係るマンホール蓋構造を示
す断面図である。FIG. 3 is a sectional view showing a manhole cover structure according to the present invention.
【００１７】このマンホール蓋構造は図１のマンホール
蓋構造のマンホール蓋形状を変更したものである。This manhole cover structure is a modification of the manhole cover structure of the manhole cover structure of FIG.
【００１８】蓋収容孔７に収容されているマンホ−ル蓋
１９の上面２１はマンホ−ル蓋受枠１の頂３と同じ高さ
に位置しているが、外周端部２３が外側に向って下降傾
斜している。外周端部２３を下降傾斜させることによっ
て取り去られるのは外周面２５方向に１．５mm以上及び
上面２１方向に１．５mm以上の部分であることが好まし
い。The upper surface 21 of the manhole lid 19 accommodated in the lid accommodating hole 7 is located at the same height as the top 3 of the manhole lid receiving frame 1, but the outer peripheral end portion 23 faces outward. It is descending and sloping. It is preferable that the outer peripheral end portion 23 is removed by inclining downwardly at a portion of 1.5 mm or more in the outer peripheral surface 25 direction and 1.5 mm or more in the upper surface 21 direction.
【００１９】図４はマンホ−ル蓋１９の外周端部２３部
分の拡大断面図である。FIG. 4 is an enlarged sectional view of the outer peripheral end portion 23 of the manhole cover 19.
【００２０】マンホ−ル蓋１９が上昇したり傾いたりし
ても外周端部２３が除雪板に対する案内傾斜面として機
能する（仮想線参照）。また、外周端部２３を形成する
ことにより除雪板の通過にともなってマンホ−ル蓋受枠
１の頂３とマンホ−ル蓋１９の境界部分に変形が生じて
もマンホ−ル蓋１９が不安定な状態となったり、マンホ
−ル蓋１９が開きにくくなったりすることがない。Even if the manhole cover 19 rises or tilts, the outer peripheral end 23 functions as a guide slope for the snow removing plate (see phantom line). Further, by forming the outer peripheral end portion 23, the manhole cover 19 is unstable even if the boundary portion between the top 3 of the manhole cover receiving frame 1 and the manhole cover 19 is deformed as the snow removing plate passes. It does not happen that the manhole cover 19 becomes difficult to open.
【００２１】なお、マンホ−ル蓋１９の上面２１を第１
のマンホ−ル蓋構造と同様にマンホ−ル蓋受枠１の頂３
より１mm乃至３mm低くしてもよい。このように構成すれ
ば、マンホ−ル蓋１９が大きく上昇したり傾いたりして
も外周端部２３により除雪板はスム−ズに案内される。The upper surface 21 of the manhole cover 19 is first
Similar to the manhole cover structure of, the top 3 of the manhole cover receiving frame 1
It may be 1 mm to 3 mm lower. According to this structure, even if the manhole cover 19 is largely lifted or tilted, the outer peripheral end portion 23 smoothly guides the snow removing plate.
【００２２】[0022]
【発明の効果】以上説明したように、本発明によれば、
マンホ−ル蓋が上昇したり傾いたりしても除雪板がマン
ホ−ル蓋にひっかかることがないマンホ−ル蓋構造を提
供できる。As described above, according to the present invention,
It is possible to provide a manhole cover structure in which the snow removing plate does not catch on the manhole cover even when the manhole cover is raised or tilted.
【図１】本発明を適用するための図５とは別の構成のマ
ンホール蓋構造を示す断面図である。FIG. 1 is a cross-sectional view showing a manhole cover structure for applying the present invention, the structure being different from that of FIG.
【図２】マンホール蓋受枠の外周部部分の拡大断面図で
ある。FIG. 2 is an enlarged sectional view of an outer peripheral portion of a manhole cover receiving frame.
【図３】本発明に係るマンホール蓋構造を示す断面図で
ある。FIG. 3 is a sectional view showing a manhole cover structure according to the present invention.
【図４】マンホール蓋の外周端部部分の拡大断面図であ
る。FIG. 4 is an enlarged sectional view of an outer peripheral end portion of a manhole cover.
【図５】従来のマンホール蓋構造を示す断面図である。FIG. 5 is a sectional view showing a conventional manhole cover structure.
１，Ａ マンホール蓋受枠 ３，Ｂ 頂 ７，Ｄ 蓋収容孔 ９，１９，Ｅ マンホール蓋 １１，２１ 上面 ２３ 外周端部 1, A manhole lid receiving frame 3, B top 7, D lid receiving hole 9, 19, E manhole lid 11, 21 upper surface 23 outer peripheral end
Claims (1)
ール蓋上面がこのマンホール蓋受枠の頂と同じ高さに又
は頂より低くなるようにマンホール蓋を収容したマンホ
ール蓋構造であって、 前記マンホール蓋の上面の外周端部を、外周端より１．
５ｍｍ以上内側から外側に向って下降傾斜させ、この外
周端から外周面に沿って１．５ｍｍ以上下側に到達させ
て、除雪板のひっかかりを防ぐ傾斜案内面を形成したこ
とを特徴とするマンホール蓋構造。1. A manhole cover structure in which a manhole cover is housed in a cover housing hole of a manhole cover receiving frame such that an upper surface of the manhole cover is at the same height as or lower than the top of the manhole cover receiving frame, The outer peripheral edge of the top surface of the lid is 1.
For 5 mm or more, incline downward from the inside to the outside
Allow 1.5mm or more to reach the lower side from the peripheral edge along the outer peripheral surface.
The manhole cover structure is characterized in that an inclined guide surface is formed to prevent the snow removal plate from being caught.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4144840A JP2686583B2 (en) | 1992-05-10 | 1992-05-10 | Manhole cover structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4144840A JP2686583B2 (en) | 1992-05-10 | 1992-05-10 | Manhole cover structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05311687A JPH05311687A (en) | 1993-11-22 |
| JP2686583B2 true JP2686583B2 (en) | 1997-12-08 |
Family
ID=15371658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4144840A Expired - Lifetime JP2686583B2 (en) | 1992-05-10 | 1992-05-10 | Manhole cover structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2686583B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55159242U (en) * | 1979-04-27 | 1980-11-15 | ||
| JPH0226645U (en) * | 1988-08-01 | 1990-02-21 |
-
1992
- 1992-05-10 JP JP4144840A patent/JP2686583B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05311687A (en) | 1993-11-22 |
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