JP3132064U - Manhole cover frame - Google Patents

Manhole cover frame Download PDF

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Publication number
JP3132064U
JP3132064U JP2007001639U JP2007001639U JP3132064U JP 3132064 U JP3132064 U JP 3132064U JP 2007001639 U JP2007001639 U JP 2007001639U JP 2007001639 U JP2007001639 U JP 2007001639U JP 3132064 U JP3132064 U JP 3132064U
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manhole cover
pavement
asphalt
receiving frame
edge
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JP2007001639U
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Japanese (ja)
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勝 福原
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株式会社福原鋳物製作所
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Abstract

【課題】マンホール蓋受枠口縁部のアスファルト舗装が綺麗に仕上り、しかもその口縁部のアスファルト舗装の剥離が少なく、また１次展圧舗装をする場合の上面位置の目印にもなるマンホール蓋受枠を提供する。
【解決手段】ベース部２の外周部に、上縁がアスファルト展圧舗装層８の下面に達する高さの立上り縁９を設け、１次展圧舗装層用の砂、砂利等を立上り縁９の上縁まで敷設した後、ランマーで展圧して仕上げ、次いで、アスファルト展圧舗装層８の施工を行う。
【選択図】図２An asphalt pavement at the edge of a manhole cover receiving frame is finished neatly, and the asphalt pavement at the edge of the manhole cover is less peeled, and the manhole cover receiving frame also serves as a mark for the upper surface position when performing primary pressure pavement. I will provide a.
SOLUTION: A rising edge 9 whose upper edge reaches a lower surface of an asphalt spread pavement layer 8 is provided on an outer peripheral portion of a base portion 2, and sand, gravel, etc. for a primary spread pavement layer are provided. After laying up to the upper edge, finish by spreading with a rammer, and then the asphalt spreading pavement layer 8 is constructed.
[Selection] Figure 2

Description

本考案は、マンホール蓋受枠口縁部のアスファルト舗装が綺麗に仕上り、しかもその口縁部のアスファルト舗装の剥離が少ないマンホール蓋受枠に関するものである。   The present invention relates to a manhole cover receiving frame in which the asphalt pavement at the edge of the manhole cover receiving frame is finished neatly and the asphalt pavement at the edge of the manhole is less peeled.

図１は、現在一般に用いられているマンホール蓋受枠と、その舗装の状況を示す縦断面図で、１はマンホール蓋受枠、２は斜壁３に植設したアンカーボルト４の挿入孔５を設けた鍔状のベース部、６は斜壁３の上面に設けたモルタル、７は砂、砂利などを用いた１次展圧舗装層、８は１次展圧舗装層７の上に展圧舗装したアスファルト舗装層である。   FIG. 1 is a longitudinal sectional view showing a manhole cover receiving frame that is generally used at present and the pavement state. 1 is a manhole cover receiving frame, and 2 is an insertion hole 5 for an anchor bolt 4 planted in an inclined wall 3. A bowl-shaped base, 6 is a mortar provided on the upper surface of the inclined wall 3, 7 is a primary pressure pavement layer using sand, gravel, etc., 8 is a pressure spread pavement on the primary pressure pavement layer 7. Asphalt pavement layer.

マンホール蓋受枠１の設置及び周辺部の舗装は、マンホール斜壁３（直壁の場合もある）に図示のように固定した後、１次展圧舗装層７を施工する。この場合、上面をランマーを用いて展圧して平坦にするが、ランマーの上下動する弾圧部は、外縁部が上方に湾曲しているので、マンホール蓋受枠１の口縁部の１次展圧舗装層７ａは、図示のように他の舗装面のように平坦にはならず押し上げられた状態となる。   The manhole cover receiving frame 1 and the surrounding pavement are fixed to the manhole slant wall 3 (which may be a straight wall) as shown in the figure, and then the primary spread pavement layer 7 is applied. In this case, the upper surface is spread and flattened using a rammer. However, since the outer pressure portion of the elastic portion that moves up and down the rammer is curved upward, the primary pressure of the mouth portion of the manhole cover receiving frame 1 is curved. As shown in the figure, the pavement layer 7a is not flat but pushed up like other pavement surfaces.

そのため、次にアスファルトを敷設した後、ランマーで展圧すると、マンホール蓋受枠１の口縁部外周に舗装された１次展圧舗装層７ａを抑止するためのアスファルト舗装層８ａが薄くなるため、図示のようにマンホール蓋受枠１の口縁の外周にアスファルト舗装層８ａが密接せずに１次展圧舗装層７ａが露出して見苦しい仕上がりになったり,また１次展圧舗装層７ａをアスファルト舗装層８ａがカバーしたとしても、１次展圧舗装層７ａの抑止力が小さいため、口縁部の舗装が剥離し易いという問題があった。
実開昭５０−１３３７６５号公報 Therefore, after laying asphalt next, when spreading with rammer, the asphalt pavement layer 8a for suppressing the primary spread pavement layer 7a paved on the outer periphery of the mouth edge of the manhole cover receiving frame 1 becomes thin. As shown in the drawing, the asphalt pavement layer 8a is not in close contact with the outer periphery of the lip of the manhole cover receiving frame 1 and the primary pressure pavement layer 7a is exposed, resulting in an unsightly finish, or the primary pressure pavement layer 7a is formed asphalt. Even if the pavement layer 8a is covered, there is a problem that the pavement at the rim is easily peeled off because the depressing force of the primary spread pavement layer 7a is small.
Japanese Utility Model Publication No. 50-133765

そこで、本考案は、マンホール蓋受枠口縁部のアスファルト舗装が綺麗に仕上がり、しかもその口縁部のアスファルト舗装が剥離し難くなり、また１次展圧舗装をする場合の上面位置の目印にもなるマンホール蓋受枠を提供することを課題とするものである。   Therefore, the present invention makes the asphalt pavement of the edge of the manhole cover receiving frame beautifully finished, and the asphalt pavement of the mouth edge is difficult to peel off. It is an object of the present invention to provide a manhole cover receiving frame.

本考案は、上記の課題を解決するためになされたもので、第１の考案は、ベース部の外周部に上縁がアスファルト舗装層の下面に達する高さの立上り縁を設けたことを特徴とするマンホール蓋受枠である。   The present invention has been made to solve the above-mentioned problems, and the first device is characterized in that a rising edge is provided on the outer periphery of the base portion so that the upper edge reaches the lower surface of the asphalt pavement layer. The manhole cover receiving frame.

第２の考案は、第１の考案において、前記立上り縁の内側に設けられた固定用アンカーボルト孔部分のベース部を上方に突出させたことを特徴とするマンホール蓋受枠である。   A second device is a manhole cover receiving frame according to the first device, wherein a base portion of a fixing anchor bolt hole portion provided inside the rising edge is protruded upward.

第１の考案によると、１次展圧舗装層がマンホール蓋受枠口縁の外周に押し上げられない１次展圧舗装を行うことが出来るため、アスファルト展圧舗装層を綺麗に仕上げることが出来、しかもマンホール蓋受枠口縁外周のアスファルト展圧舗装層が他の部分と同じ厚さに仕上るため、従来問題となっていた口縁外周のアスファルト舗装層の剥離し易さが改善される。更に、立上り縁の上縁が１次展圧舗装をする場合の上面位置の目印にもなるため、１次展圧舗装材の敷設作業の利便性を高める効果がある。   According to the first device, the primary pressure-paved pavement layer can be finished neatly because the primary pressure-paved pavement layer cannot be pushed up to the outer periphery of the manhole cover receiving frame edge, so that the asphalt pressure-pavement pavement layer can be finished beautifully. Moreover, since the asphalt pressure-paved pavement layer on the outer periphery of the manhole cover receiving frame mouth is finished to the same thickness as other portions, the ease of peeling of the asphalt pavement layer on the outer periphery of the mouth edge, which has been a problem in the past, is improved. Furthermore, since the upper edge of the rising edge also serves as a mark of the upper surface position when performing primary pressure paving, there is an effect of improving the convenience of laying work of the primary pressure paving material.

第２の考案によると、第１の考案によるマンホール蓋受枠を固定する際のアンカーボルトのナット止め作業を楽にする効果がある。   According to the second device, there is an effect of facilitating the nut fixing operation of the anchor bolt when the manhole cover receiving frame according to the first device is fixed.

図２は本考案の実施例１の縦断面図を示し、ベース部２の外周部に、上縁がアスファルト展圧舗装層８の下面に達する高さの立上り縁９を設けたものである。   FIG. 2 shows a longitudinal sectional view of the first embodiment of the present invention, in which a rising edge 9 whose upper edge reaches the lower surface of the asphalt pressure-paving pavement layer 8 is provided on the outer peripheral portion of the base portion 2.

この場合の舗装は、先ず、１次展圧舗装層用の砂、砂利等を立上り縁９の上縁まで敷設した後、ランマーで展圧して仕上げ、次いで、アスファルト展圧舗装層８の施工を行う。   In this case, first pavement sand, gravel, etc. are laid to the upper edge of the rising edge 9 and then finished with a rammer and then the asphalt pressure-paved pavement layer 8 is constructed. Do.

このような舗装を行うことにより、アスファルト舗装層８は、図示のように全体が一様の厚さに仕上がるので、舗装が綺麗に仕上がると共に、マンホール蓋受枠１の口縁部の外側の剥離し易さが改善される。   By performing such a pavement, the entire asphalt pavement layer 8 is finished to a uniform thickness as shown in the figure, so that the pavement is finished neatly and the outside of the mouth edge of the manhole cover receiving frame 1 is peeled off. Ease is improved.

図３は本考案の実施例２の縦断面図で、立上り縁９を設けると共に、ベース部２に設けるアンカーボルト４の挿入孔５を設ける部分２ａを上方に突出させたものである。   FIG. 3 is a longitudinal sectional view of the second embodiment of the present invention, in which a rising edge 9 is provided, and a portion 2a in which an insertion hole 5 of an anchor bolt 4 provided in the base portion 2 is provided is projected upward.

このように構成すると、実施例１と同様の効果があると共に、立上り縁９があってもアンカーボルト４にナット１０を螺合する作業が容易になる効果がある。   With this configuration, the same effect as that of the first embodiment is obtained, and the operation of screwing the nut 10 onto the anchor bolt 4 is facilitated even when the rising edge 9 is present.

現行マンホール蓋受枠とその舗装構造を示す縦断面図。The longitudinal cross-sectional view which shows the present manhole cover receiving frame and its pavement structure. 実施例１の縦断面図。1 is a longitudinal sectional view of Example 1. FIG. 実施例２の縦断面図。FIG. 6 is a longitudinal sectional view of Example 2.

符号の説明Explanation of symbols

１ マンホール蓋受枠
２ ベース部
３ 斜壁
４ アンカーボルト
５ 挿入孔
６ モルタル
７ １次展圧舗装層
８ アスファルト舗装層
９ 立上り縁
１０ ナット DESCRIPTION OF SYMBOLS 1 Manhole cover receiving frame 2 Base part 3 Slanting wall 4 Anchor bolt 5 Insertion hole 6 Mortar 7 Primary spreading pavement layer 8 Asphalt pavement layer 9 Rising edge 10 Nut

Claims (2)

ベース部の外周部に上縁がアスファルト舗装層の下面に達する高さの立上り縁を設けたことを特徴とするマンホール蓋受枠。 A manhole cover receiving frame, characterized in that a rising edge is provided on the outer periphery of the base portion so that the upper edge reaches the lower surface of the asphalt pavement layer. 前記立上り縁の内側に設けられた固定用アンカーボルト孔部分のベース部を上方に突出させたことを特徴とする請求項１記載のマンホール蓋受枠。 The manhole cover receiving frame according to claim 1, wherein a base portion of a fixing anchor bolt hole portion provided inside the rising edge protrudes upward.
JP2007001639U 2007-03-13 2007-03-13 Manhole cover frame Expired - Fee Related JP3132064U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4658232B1 (en) * 2010-11-01 2011-03-23 長島鋳物株式会社 Display device of anchor bolt position in iron cover for underground structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4658232B1 (en) * 2010-11-01 2011-03-23 長島鋳物株式会社 Display device of anchor bolt position in iron cover for underground structure

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