JP5191349B2

JP5191349B2 - Beam pipe joint structure of protective fence

Info

Publication number: JP5191349B2
Application number: JP2008274354A
Authority: JP
Inventors: 典彦梶村; 慶太山田
Original assignee: Nippon Steel Metal Products Co Ltd
Current assignee: Nippon Steel Metal Products Co Ltd
Priority date: 2008-10-24
Filing date: 2008-10-24
Publication date: 2013-05-08
Anticipated expiration: 2028-10-24
Also published as: JP2010101088A

Description

この発明は、道路に沿って間隔をあけて立てた支柱の道路側（車道側）に、上下方向に間隔をあけてブラケットを取り付け、同ブラケットへインナースリーブを利用して道路に沿って連続するビームパイプを取り付けて成る防護柵の技術分野に属し、更に云えば、前記ブラケットの形態に工夫を施すことにより景観性を向上させた防護柵のビームパイプ継手構造に関する。 In the present invention, brackets are attached at intervals in the vertical direction on the road side (roadway side) of the pillars that are spaced apart along the road, and the brackets are continuous along the road using an inner sleeve. The present invention relates to a protection fence beam pipe joint structure which belongs to the technical field of a protection fence formed by attaching a beam pipe, and more specifically improves the landscape by devising the form of the bracket.

ビームパイプによる防護柵の構造は既に種々知られている。特に最近では、周囲の街並みや自然景観に溶け込んだ景観性にマッチした防護柵が提案されている。
本出願人は、支柱側に支柱取付面部を有し、道路側にインナースリーブを内面に沿わせる湾曲面部を有し、同湾曲面部の中間高さ部位を僅かに開口したほぼ筒形断面形状のブラケット本体と、同ブラケット本体内に嵌め込み、インナースリーブを支保してブラケット本体を補強する支持金具とから成るブラケットを開発し、これを用いた防護柵のビームパイプ継手構造を提案している（特許文献１参照）。
この特許文献１にかかる防護柵のビームパイプ継手構造は、支持金具によりブラケット本体の剛性を高めることができる。
また、本出願人は、支柱側に支柱取付面部を有し、道路側にインナースリーブを内面に沿わせる湾曲面部を有する筒形断面形状をなし、下面に道路側に向いた傾斜面を持つ切り起し片が形成されたブラケットを開発し、これを用いた防護柵のビームパイプ継手構造を提案している（特許文献２参照）。
この特許文献２にかかる防護柵のビームパイプ継手構造は、ボルト、ナットが目立たなく、景観性が良好であるとともに、車輌用防護柵としての機能を果たすことができる。 Various structures of guard fences using beam pipes are already known. In particular, recently, protective fences have been proposed that match the scenery that blends into the surrounding cityscape and natural scenery.
The present applicant has a columnar mounting surface portion on the column side, a curved surface portion on the road side along which the inner sleeve runs along the inner surface, and a substantially cylindrical cross-sectional shape with a slightly opened middle height portion of the curved surface portion. A bracket consisting of a bracket body and a support fitting that fits into the bracket body and supports the inner sleeve to reinforce the bracket body has been developed, and a beam pipe joint structure for a protective fence using this has been proposed (patented) Reference 1).
The beam pipe joint structure of the guard fence according to Patent Document 1 can increase the rigidity of the bracket body by the support metal fitting.
In addition, the applicant has a cylindrical cross-sectional shape having a column mounting surface portion on the column side, a curved surface portion on the road side along the inner sleeve, and an inclined surface facing the road side on the lower surface. A bracket formed with raised pieces has been developed, and a beam pipe joint structure for a protective fence using the bracket has been proposed (see Patent Document 2).
The beam pipe joint structure of the guard fence according to Patent Document 2 is inconspicuous in bolts and nuts, has a good landscape, and can function as a guard fence for a vehicle.

実公平１−１５７０２号公報No. 1-15702 特許第３９９８２１０号公報Japanese Patent No. 3998210

本発明の目的は、上記特許文献１、２にかかる防護柵のビームパイプ継手構造をさらに改良して景観性を高めるとともに、使用するブラケットの汎用性を向上させた、防護柵のビームパイプ継手構造を提供することである。 The object of the present invention is to further improve the beam pipe joint structure of the guard fence according to Patent Documents 1 and 2 to enhance the scenery and to improve the versatility of the bracket to be used, and to improve the beam pipe joint structure of the guard fence. Is to provide.

上記背景技術の課題を解決するための手段として、請求項１に記載した発明に係る防護柵のビームパイプ継手構造は、支柱の道路側へブラケットを取り付け、同ブラケットにインナースリーブを利用してビームパイプを取り付けてなる防護柵のビームパイプ継手構造において、
前記ブラケットは、ブラケット本体と同ブラケット本体内に挿入される補強部材とで構成され、前記ブラケット本体が、支柱側に支柱取付部を有し、道路側にビームパイプ取付部を有すること、
前記補強部材は、前記ブラケット本体の支柱取付部の内側に内接する背面部を有し、この背面部の両側部にブラケット本体の支柱取付部とビームパイプ取付部に内接するか、若干の隙間を形成する側面部を有しており、ブラケット本体の支柱取付部とビームパイプ取付部との間に挿入されていること、
前記ブラケットは、ブラケット本体の支柱取付部と補強部材の背面部を支柱を貫通したボルトで固定することにより、支柱に固定されていること、
前記ブラケットのブラケット本体のビームパイプ取付部に、インナースリーブと同インナースリーブの外周へ嵌めて突き合わせた２本のビームパイプの端部がボルト接合されていることを特徴とする。 As means for solving the above-mentioned background art, the beam pipe joint structure of the guard fence according to the invention described in claim 1 is provided with a bracket attached to the road side of the column and an inner sleeve used for the beam. In the beam pipe joint structure of the guard fence to which the pipe is attached,
The bracket is composed of a bracket body and a reinforcing member inserted into the bracket body, and the bracket body has a column mounting portion on the column side and a beam pipe mounting unit on the road side,
The reinforcing member has a back surface that is inscribed inside the support body mounting portion of the bracket body, and is inscribed on both sides of the back surface portion by the support body mounting portion of the bracket body and the beam pipe mounting portion, or has a slight gap. It has a side part to be formed, and is inserted between the column mounting part and the beam pipe mounting part of the bracket body,
The bracket is fixed to the column by fixing the column mounting part of the bracket body and the back part of the reinforcing member with a bolt penetrating the column,
The beam pipe mounting portion of the bracket body of the bracket is characterized in that the end portions of the two beam pipes that are fitted and abutted on the outer periphery of the inner sleeve and the inner sleeve are bolted together.

請求項２に記載した発明に係る防護柵のビームパイプ継手構造は、支柱の道路側へブラケットを取り付け、同ブラケットにインナースリーブを利用してビームパイプを取り付けてなる防護柵のビームパイプ継手構造において、
前記ブラケットは、ブラケット本体と同ブラケット本体内に挿入される補強部材とで構成され、前記ブラケット本体が、支柱側に垂直な支柱取付部を有し、同支柱取付部の上端から道路側に延びる上面部を有し、同上面部の道路側の先端から下方に垂下しながら湾曲するビームパイプ取付部を有すること、
前記支柱取付部の横幅が、前記ビームパイプ取付部の横幅より小さいこと、
前記上面部は、支柱取付部からビームパイプ取付部に向かって、上方に緩やかに傾斜しているとともに平面方向から見て左右対称な末広がり形状に拡大した台形状とされていること、
前記補強部材は、ブラケット本体の支柱取付部の内側に内接する垂直な背面部を有し、この背面部の両側部から直角にブラケット本体のビームパイプ取付部に向かう側面部を有し、この両側面部のビームパイプ取付部に対向する面が当該ビームパイプ取付部の内側面形状と同形状で内接するか、若干の隙間を形成する湾曲形状とされており、ブラケット本体の支柱取付部とビームパイプ取付部との間に挿入されていること、
前記ブラケットは、ブラケット本体の支柱取付部と補強部材の背面部に形成されたボルト孔に支柱を貫通したボルトを通すことによって、支柱に固定されていること、
前記ブラケットのブラケット本体のビームパイプ取付部に、インナースリーブと同インナースリーブの外周へ嵌めて突き合わせた２本のビームパイプの端部が、当該ビームパイプ取付部に形成されたボルト孔とインナースリーブ及びビームパイプに形成されたボルト孔が一致されてボルト接合されていることを特徴とする。 The beam pipe joint structure of the guard fence according to the invention described in claim 2 is a beam pipe joint structure of the guard fence in which a bracket is attached to the road side of the column and a beam pipe is attached to the bracket using an inner sleeve. ,
The bracket includes a bracket body and a reinforcing member inserted into the bracket body. The bracket body has a column mounting portion perpendicular to the column side, and extends from the upper end of the column mounting portion to the road side. Having a beam pipe mounting portion that has an upper surface portion and curves while hanging downward from a road-side tip of the upper surface portion;
The lateral width of the column mounting portion is smaller than the lateral width of the beam pipe mounting portion,
The upper surface portion has a trapezoidal shape that is gently tilted upward from the column mounting portion toward the beam pipe mounting portion and expanded in a bilaterally symmetric shape when viewed from the plane direction;
The reinforcing member has a vertical back surface inscribed inside the column mounting portion of the bracket body, and has side portions that are perpendicular to the beam pipe mounting portion of the bracket body from both sides of the back surface. The surface facing the beam pipe mounting part of the surface part is inscribed in the same shape as the inner side surface shape of the beam pipe mounting part, or is curved so as to form a slight gap. Inserted between the mounting part and
The bracket is fixed to the column by passing a bolt penetrating the column through a bolt hole formed in the column mounting unit of the bracket body and the back surface of the reinforcing member,
The end portions of the two beam pipes fitted to the outer periphery of the inner sleeve and the outer periphery of the inner sleeve and the beam pipe mounting portion of the bracket body of the bracket are connected to the bolt hole formed in the beam pipe mounting portion, the inner sleeve, Bolt holes formed in the beam pipe are matched and bolted together.

請求項３に記載した発明は、請求項１に記載した防護柵のビームパイプ継手構造において、前記ブラケットのブラケット本体が、前記支柱取付部と、同支柱取付部の上端から道路側に延びる上面部と、同上面部の道路側の先端から下方に垂下しながら湾曲するビームパイプ取付部とからなることを特徴とする。 According to a third aspect of the present invention, in the beam pipe joint structure of the guard fence according to the first aspect, the bracket main body of the bracket has an upper surface portion extending from the upper end of the column mounting portion to the road side from the upper end of the column mounting portion. And a beam pipe mounting portion that is bent downwardly from the road-side tip of the upper surface portion.

請求項４に記載した発明は、請求項１に記載した防護柵のビームパイプ継手構造において、前記ブラケットのブラケット本体が、前記支柱取付部とビームパイプ取付部との間の底面に底部を有し、上面に上面部を有する筒形断面形状に形成されていることを特徴とする。 According to a fourth aspect of the present invention, in the beam pipe joint structure of the guard fence according to the first aspect, the bracket main body of the bracket has a bottom portion on the bottom surface between the support column mounting portion and the beam pipe mounting portion. The upper surface portion is formed in a cylindrical cross-sectional shape.

請求項５に記載した発明は、請求項１〜４のいずれか一に記載した防護柵のビームパイプ継手構造において、前記ビームパイプは円筒形状であり、前記ブラケットのブラケット本体のビームパイプ取付部は、その外側面を前記ビームパイプの外周面の一部が沿う湾曲形状に形成されていることを特徴とする。 According to a fifth aspect of the present invention, in the beam pipe joint structure for a guard fence according to any one of the first to fourth aspects, the beam pipe has a cylindrical shape, and the beam pipe mounting portion of the bracket body of the bracket is The outer surface is formed in a curved shape along which a part of the outer peripheral surface of the beam pipe extends.

請求項６に記載した発明は、請求項１〜５のいずれか一に記載した防護柵のビームパイプ継手構造において、前記インナースリーブの外周へ嵌めて突き合わせた２本のビームパイプの端部は、前記ブラケット本体のビームパイプ取付部の内側の下方から斜め上向きに当該ビームパイプ取付部およびビームパイプを貫通してインナースリーブの中心方向へねじ込んだボルトで固定されていることを特徴とする。 The invention according to claim 6 is the beam pipe joint structure of the guard fence according to any one of claims 1 to 5, wherein the end portions of the two beam pipes that are fitted and abutted against the outer periphery of the inner sleeve are: The bracket main body is fixed by a bolt that passes through the beam pipe mounting portion and the beam pipe obliquely upward from below the inside of the beam pipe mounting portion of the bracket body and is screwed into the center direction of the inner sleeve.

請求項７に記載した発明は、請求項１〜３、５、６のいずれか一に記載した防護柵のビームパイプ継手構造において、前記ブラケット本体の支柱取付部の下端部と、ビームパイプ取付部の下端部には、ブラケット本体の内側へ向かって屈曲したリブが延設されていることを特徴とする。 A seventh aspect of the present invention is the beam pipe joint structure for a guard fence according to any one of the first to third, fifth, and sixth aspects, wherein the lower end portion of the post mounting portion of the bracket body and the beam pipe mounting portion A rib that is bent toward the inside of the bracket body is extended at the lower end of the bracket.

請求項８に記載した発明は、請求項１〜７のいずれか一に記載した防護柵のビームパイプ継手構造において、前記支柱を貫通してブラケットを固定するボルトは、前記補強部材の側面部に回り止め状態に保持したナットで締結されていることを特徴とする。 According to an eighth aspect of the present invention, in the beam pipe joint structure of the protective fence according to any one of the first to seventh aspects, the bolt that penetrates the support and fixes the bracket is provided on a side surface of the reinforcing member. It is characterized by being fastened with a nut held in a non-rotating state.

本発明に係る防護柵のビームパイプ継手構造によれば、以下の効果を奏する。
１）一箇所の継ぎ目を形成して突き合わせたビームパイプの全体を、支柱に取り付けたブラケットの道路側に露出した状態で設置できるので、ビームパイプの連続性を極力損なうことがない。よって、良好な景観を形成することに寄与する。また、一箇所の継ぎ目で実施できるので、金属片等の付着を防止することができる。さらに、ブラケット本体のビームパイプ取付部が下方に湾曲した形状となっており、上面及び前面がなにもない状態なので、ビームパイプの取り付けを簡単に行うことができ、施工性に優れている。
２）ブラケットを、その外郭を形成するブラケット本体と、ブラケット本体の内側に密接状態に嵌め込み当該ブラケット本体を補強する補強部材との２ピース構造で実施するので、ブラケット本体の剛性を合理的に高めることができ、ビームパイプを安定性の高い状態で支持できる。
３）ブラケットの外郭を形成するブラケット本体を、歩行者および運転者（車両の乗員）の視線から目立たない取付位置、及び大きさで実施できるので、良好な景観を形成することに寄与する。
４）接合部材として用いるボルトを、歩行者および運転者（車両の乗員）の視線から目立たない部位に設けて実施できる。また、ナットにおいては一切見えない目隠し状態で実施できる。よって、良好な景観を形成することに寄与する。
５）ブラケットは、各段のビームパイプの取り付けに共通に使用することができ、また、ブラケットを支柱に取り付けるボルト、ナットをはじめ、インナースリーブ、ビームパイプまでもすべて共通に使用できる。つまり、防護柵の構成部材は各段のビームパイプに共通しており、ビームパイプの設置位置の高さで使い分ける面倒さがない。よって、構成部材を共通化でき、品種が少ない分だけ部材管理が容易になるし、経済的である。また、ビームパイプの設置位置の高さに拘わらず、同様の組み立て手順と作業の繰り返しにより防護柵の設置作業を効率よく進めることができるので、施工性にも優れている。
６）下面を開口したブラケット本体を用いる場合には、ビームパイプ取付用のボルトのねじ込み作業がし易い利点がある。また、ブラケット内へのゴミ詰めを防止できるので、良好な景観を形成することに寄与すると共に、ブラケットの品質保持に寄与する。
７）請求項７に係るブラケット本体を用いる場合には、ブラケット本体の支柱取付部の下端が内側に屈曲したリブを有するので、補強部材を挿入するときのレールの役割を果たし、かつ、補強部材をボルトで固定するまでの間、支える役割を果たす。よって、施工性に優れている。
また、前記ブラケット本体のビームパイプ取付部の下端が内側に屈曲したリブを有するので、湾曲形状に形成したビームパイプ取付部の剛性を合理的に高めることができる。
８）請求項８に係る補強部材を用いてブラケット本体と組み合わせたブラケットによると、支柱を貫通したボルトとナットの締結作業を、ナット側に締結用工具を用いる等して両手作業を行うことなく、歩道側から当該ボルトの頭部を回転させるだけで、簡易、且つ確実に取り付け作業を行うことができる。 According to the beam pipe joint structure of the guard fence according to the present invention, the following effects are obtained.
1) Since the entire beam pipe formed by joining a joint at one place is exposed on the road side of the bracket attached to the column, the continuity of the beam pipe is not lost as much as possible. Therefore, it contributes to forming a good landscape. Moreover, since it can implement by the joint of one place, adhesion of a metal piece etc. can be prevented. Furthermore, since the beam pipe mounting portion of the bracket body is curved downward and has no upper surface and no front surface, the beam pipe can be easily mounted and the workability is excellent.
2) Since the bracket is implemented by a two-piece structure including a bracket body that forms the outer shell and a reinforcing member that is closely fitted inside the bracket body and reinforces the bracket body, the bracket body is reasonably enhanced in rigidity. The beam pipe can be supported in a highly stable state.
3) Since the bracket main body that forms the outer shell of the bracket can be implemented at an attachment position and size that is not conspicuous from the sight of the pedestrian and driver (vehicle occupant), it contributes to forming a good landscape.
4) The bolt used as the joining member can be provided by being provided in a portion that is not conspicuous from the sight of the pedestrian and driver (vehicle occupant). Moreover, it can implement in the blindfold state which cannot be seen at all in a nut. Therefore, it contributes to forming a good landscape.
5) The bracket can be used in common for the installation of the beam pipe at each stage, and the bolt, the nut, the inner sleeve, and the beam pipe for attaching the bracket to the support can all be used in common. That is, the structural members of the protective fence are common to the beam pipes of each stage, and there is no troublesomely using them depending on the height of the installation position of the beam pipes. Therefore, the constituent members can be shared, and the member management becomes easier and economical because there are fewer varieties. In addition, regardless of the height of the installation position of the beam pipe, the installation work of the protective fence can be efficiently advanced by repeating the same assembling procedure and work, so that the workability is excellent.
6) When using a bracket body with an open bottom surface, there is an advantage in that it is easy to screw a beam pipe mounting bolt. In addition, since dust can be prevented from being packed into the bracket, it contributes to forming a good landscape and contributes to maintaining the quality of the bracket.
7) When the bracket main body according to claim 7 is used, the lower end of the column mounting portion of the bracket main body has a rib bent inward, so that it plays the role of a rail when inserting the reinforcing member, and the reinforcing member Until it is fixed with bolts. Therefore, it is excellent in workability.
In addition, since the lower end of the beam pipe mounting portion of the bracket body has a rib bent inward, the rigidity of the beam pipe mounting portion formed in a curved shape can be increased reasonably.
8) According to the bracket combined with the bracket body using the reinforcing member according to claim 8, the fastening operation of the bolt and the nut penetrating the support column can be performed without using both hands by using a fastening tool on the nut side. By simply rotating the head of the bolt from the side of the sidewalk, the mounting operation can be performed easily and reliably .

以下に、本発明に係る防護柵のビームパイプ継手構造の実施例を図面に基づいて説明する。 Below, the Example of the beam pipe joint structure of the guard fence which concerns on this invention is described based on drawing.

図１、図２は、本発明に係るビームパイプ継手構造を採用した防護柵を示している。
この防護柵は、道路に沿って間隔をあけて立てた支柱１の道路側（車道側）に、上下方向に間隔をあけてブラケット２が取り付けられ、前記ブラケット２に、インナースリーブ３を利用して、道路に沿って連続するビームパイプ４が取り付けられている。ちなみに図示例では、同形同大のブラケット２を支柱１の上下方向に等間隔に３箇所設けて実施しているが、ブラケット２の設置間隔および設置個数は勿論これに限定されない。 1 and 2 show a guard fence employing a beam pipe joint structure according to the present invention.
This protective fence is provided with brackets 2 attached at intervals in the vertical direction on the road side (roadway side) of the pillars 1 that are spaced apart along the road. An inner sleeve 3 is used for the bracket 2. A beam pipe 4 that is continuous along the road is attached. Incidentally, in the illustrated example, the brackets 2 of the same shape and the same size are provided at three positions at equal intervals in the vertical direction of the support column 1, but the installation interval and the installation number of the brackets 2 are of course not limited thereto.

図３〜図５は、防護柵を構成するビームパイプ継手構造のうち、一例として上段（最上位）のビームパイプ４の継手構造（図１のＸ部の構造）を示している。この継手構造は、支柱１の頂部（具体的には支柱１の頭部に被せたキャップ９）の道路側へブラケット２を取り付け、同ブラケット２にインナースリーブ３を利用してビームパイプ４を取り付けてなる構造であり、前記ブラケット２は、ブラケット本体１０（図６Ａ、Ｂ参照）と同ブラケット本体１０内に挿入される補強部材１１（図７参照）とで構成されている。
このブラケット本体１０は、支柱側に支柱取付部１０ａを有し、道路側にビームパイプ取付部１０ｂを有している。
この補強部材１１は、ブラケット本体１０の支柱取付部１０ａの内側に内接する背面部１１ａを有し、この背面部１１ａの両側部にブラケット本体１０の支柱取付部１０ａとビームパイプ取付部１０ｂに内接する側面部１１ｂ、１１ｂを有しており、ブラケット本体１０の支柱取付部１０ａとビームパイプ取付部１０ｂとの間に密接状態で挿入されている。
また、このブラケット２は、ブラケット本体１０の支柱取付部１０ａと補強部材１１の背面部１１ａを支柱１を貫通した支柱取付用のボルト５で固定することにより、支柱１に固定されている。
さらに、このブラケット２のブラケット本体１０のビームパイプ取付部１０ｂに、インナースリーブ３と同インナースリーブ３の外周へ嵌めて突き合わせた２本のビームパイプ４、４の端部がビームパイプ取付用のボルト６で接合されている。 3-5 has shown the coupling structure (structure of the X section of FIG. 1) of the upper stage (uppermost) beam pipe 4 as an example among the beam pipe coupling structures which comprise a guard fence. In this joint structure, the bracket 2 is attached to the road side of the top of the support 1 (specifically, the cap 9 covering the head of the support 1), and the beam pipe 4 is attached to the bracket 2 using the inner sleeve 3. The bracket 2 includes a bracket body 10 (see FIGS. 6A and 6B) and a reinforcing member 11 (see FIG. 7) inserted into the bracket body 10.
The bracket body 10 has a column mounting portion 10a on the column side and a beam pipe mounting portion 10b on the road side.
The reinforcing member 11 has a back surface portion 11a that is inscribed inside the support column mounting portion 10a of the bracket body 10, and the support member mounting portion 10a and the beam pipe mounting portion 10b of the bracket body 10 are provided on both sides of the back surface portion 11a. The side surface portions 11b and 11b are in contact with each other, and are inserted in a close state between the column mounting portion 10a of the bracket body 10 and the beam pipe mounting portion 10b.
Further, the bracket 2 is fixed to the column 1 by fixing the column mounting portion 10 a of the bracket body 10 and the back surface portion 11 a of the reinforcing member 11 with column mounting bolts 5 penetrating the column 1.
Further, the end portions of the two beam pipes 4 and 4 which are fitted to the outer periphery of the inner sleeve 3 and the inner sleeve 3 are abutted to the beam pipe mounting portion 10b of the bracket body 10 of the bracket 2 and are bolts for mounting the beam pipe. 6 is joined.

なお、本実施例で用いるビームパイプ４は円筒形状であり、前記ブラケット２のブラケット本体１０のビームパイプ取付部１０ｂは、その外側面を前記ビームパイプ４の外周面の一部が沿う湾曲形状に形成されている。 The beam pipe 4 used in this embodiment has a cylindrical shape, and the beam pipe mounting portion 10b of the bracket main body 10 of the bracket 2 has a curved shape in which a part of the outer peripheral surface of the beam pipe 4 follows the outer surface. Is formed.

このブラケット２のブラケット本体１０は、鋼板を折り曲げ加工したもので、支柱取付部１０ａと、同支柱取付部１０ａの上端から道路側へ延びる上面部１０ｃと、同上面部の道路側の先端から下方に垂下しながら湾曲するビームパイプ取付部１０ｂとからなる。要するに、本実施例に用いるブラケット本体１０は下面が開口しているので、ビームパイプ取付用のボルト６のねじ込み作業がし易い利点がある。また、ブラケット２内へのゴミ詰めを防止できる。 The bracket body 10 of the bracket 2 is obtained by bending a steel plate, and includes a column mounting portion 10a, an upper surface portion 10c extending from the upper end of the column mounting portion 10a to the road side, and a lower end from the road side tip of the upper surface portion. It consists of a beam pipe mounting portion 10b that curves while drooping. In short, since the lower surface of the bracket main body 10 used in this embodiment is open, there is an advantage that it is easy to screw in the bolt 6 for attaching the beam pipe. Further, it is possible to prevent dust from being packed into the bracket 2.

このブラケット本体１０の支柱取付部１０ａは、支柱１の頭部に被せるキャップ９の道路側に設けた平面部９ａ（図８参照）とほぼ同形同大の垂直な平板状に形成され、その中央部に１個の支柱取付用のボルト孔１０ｄが設けられ、このボルト孔１０ｄに前記支柱取付用のボルト５が通される。一方、湾曲形状に形成したビームパイプ取付部１０ｂは、その下部の左右２箇所にビームパイプ取付用のボルト孔１０ｅが当該湾曲形状に沿って斜め上向きに設けられ、このボルト孔１０ｅに前記ビームパイプ取付用のボルト６が通される。 The bracket mounting portion 10a of the bracket body 10 is formed in a vertical flat plate shape that is substantially the same shape and size as the flat portion 9a (see FIG. 8) provided on the road side of the cap 9 that covers the head of the column 1. One pillar mounting bolt hole 10d is provided in the central portion, and the pillar mounting bolt 5 is passed through the bolt hole 10d. On the other hand, the beam pipe mounting portion 10b formed in a curved shape is provided with beam pipe mounting bolt holes 10e obliquely upward along the curved shape at two locations on the left and right sides of the beam pipe mounting portion 10b. The bolt 6 for attachment is passed.

なお、本実施例では、前記支柱取付用のボルト孔１０ｄとビームパイプ取付用のボルト孔１０ｅとのなす角度θ（図６Ｃ参照）を３０度に設定している。よって、支柱取付用のボルト孔１０ｄを通るボルト５を水平としたときに、ビームパイプ取付用のボルト孔１０は、この水平線から下方に３０度の角度で開孔した状態で位置している。
このため、ブラケット２にビームパイプ４を固定する際に、ボルト６を締め付けるスペースが確保できるので、ブラケットの幅（支柱取付部１０ａとビームパイプ取付部１０ｂとの間の間隔）を大きくしなくてすむ。また、ブラケット２の下部の開口部からボルト６を作業員の手で挿入し、ドライバーで容易にねじ込むことができる。 In this embodiment, the angle θ (see FIG. 6C) formed by the bolt hole 10d for attaching the column and the bolt hole 10e for attaching the beam pipe is set to 30 degrees. Therefore, when the bolt 5 passing through the pillar mounting bolt hole 10d is horizontal, the beam pipe mounting bolt hole 10 is located in a state of being opened downward at an angle of 30 degrees from the horizontal line.
For this reason, when the beam pipe 4 is fixed to the bracket 2, a space for tightening the bolt 6 can be secured, so that the width of the bracket (the interval between the column mounting portion 10a and the beam pipe mounting portion 10b) does not have to be increased. I'm sorry. Also, the bolt 6 can be inserted by an operator's hand from the opening at the bottom of the bracket 2 and can be easily screwed with a screwdriver.

このブラケット本体１０は、支柱取付部１０ａの横幅が前記ビームパイプ取付部１０ｂより小さく設計され、前記上面部１０ｃは、支柱取付部１０ａからビームパイプ取付部１０ｃに向かって、上方に緩やかに傾斜しているとともに、平面方向から見て左右対称な末広がり形状に拡大した台形状とされている。ちなみに、本実施例に係る支柱取付部１０ａの縦横寸法は、４０×６０ｍｍ程度であるのに対し、ビームパイプ取付部１０ｂの縦横寸法は、５０×１２０ｍｍ程度で実施している。この寸法は、車道側および歩道側から見て、ブラケット本体１０（ブラケット２）の露出を目立たなくすることを考慮したものである。 The bracket body 10 is designed such that the horizontal width of the column mounting portion 10a is smaller than that of the beam pipe mounting portion 10b, and the upper surface portion 10c is gently inclined upward from the column mounting portion 10a toward the beam pipe mounting portion 10c. In addition, the trapezoidal shape is enlarged to a symmetrically divergent shape when viewed from the plane direction. Incidentally, the vertical and horizontal dimensions of the column mounting portion 10a according to the present embodiment are about 40 × 60 mm, whereas the vertical and horizontal dimensions of the beam pipe mounting portion 10b are about 50 × 120 mm. This dimension considers that exposure of the bracket main body 10 (bracket 2) becomes inconspicuous seeing from the roadway side and the sidewalk side.

このブラケット本体１０は、さらに、支柱取付部１０ａの下端部と、ビームパイプ取付部１０ｂの下端部にそれぞれ、ブラケット本体１０の内側へ向かって屈曲したリブ１０ｆ、１０ｇが延設されている。この支柱取付部１０ａに設けたリブ１０ｆは、補強部材１１を挿入するときのレールの役割を果たし、かつ、補強部材１１を支柱取付用のボルト５で固定するまでの間、支える役割を果たす。一方、ビームパイプ取付部１０ｂに設けたリブ１０ｇは、湾曲形状に形成したビームパイプ取付部１０ｂの剛性を合理的に高める役割を果たす。 The bracket body 10 is further provided with ribs 10f and 10g which are bent toward the inside of the bracket body 10 at the lower end portion of the column attachment portion 10a and the lower end portion of the beam pipe attachment portion 10b, respectively. The ribs 10f provided on the column attachment portion 10a serve as rails when the reinforcement member 11 is inserted and also support the reinforcement member 11 until the reinforcement member 11 is fixed with the column attachment bolts 5. On the other hand, the rib 10g provided in the beam pipe attachment portion 10b plays a role of increasing the rigidity of the beam pipe attachment portion 10b formed in a curved shape.

本実施例に係るブラケット２の補強部材１１は、鋼板を折り曲げ加工したもので、背面部１１ａと側面部１１ｂ、１１ｂとで平断面コ字形状に形成されている。
この補強部材１１の背面部１１ａは、前記ブラケット本体１０の支柱取付部１０ａと内接する垂直な平板状に形成され、その中央部に、前記支柱取付部１０ａに設けたボルト孔１０ｄと中心が一致するほぼ同径のボルト孔１１ｄが形成されている。
この補強部材１１の側面部１１ｂ、１１ｂは、同背面部１１ａの両側部から直角にブラケット本体１０のビームパイプ取付部１０ｂに向かい、当該ビームパイプ取付部１０ｂに対向する面１１ｃ、１１ｃが、ビームパイプ取付部１０ｂの内側面形状と同形状で内接する湾曲形状に形成されている。
なお、この補強部材１１の側面部１１ｂ、１１ｂにおけるビームパイプ取付部１０ｂに対向する面１１ｃ、１１ｃは、当該ビームパイプ取付部１０ｂの内側面と内接することなく、若干の隙間を形成する形状で実施してもよい。この場合、車両衝突時に、ブラケット本体１０のビームパイプ取付部１０ｂが補強部材１１の当該ビームパイプ取付部１０ｂに対向する面１１ｃ、１１ｃに当接して車両衝突時の衝撃を受け止めることができる。
また、この補強部材１１の両側面部１１ｂ、１１ｂの外法間隔は、ブラケット本体１０のビームパイプ取付部１１ｂに設けられたボルト孔１０ｅ、１０ｅの間隔よりも幅狭に形成されている。このため、当該ボルト孔１０ｅ、１０ｅにボルト６をねじ込む作業を容易に行い得る。 The reinforcing member 11 of the bracket 2 according to the present embodiment is formed by bending a steel plate, and is formed in a U-shaped flat cross section with a back surface portion 11a and side surface portions 11b and 11b.
The back surface portion 11a of the reinforcing member 11 is formed in a vertical flat plate shape inscribed with the column mounting portion 10a of the bracket body 10, and the center thereof coincides with the bolt hole 10d provided in the column mounting portion 10a. A bolt hole 11d having substantially the same diameter is formed.
The side portions 11b and 11b of the reinforcing member 11 are directed to the beam pipe mounting portion 10b of the bracket body 10 at right angles from both side portions of the back surface portion 11a, and the surfaces 11c and 11c facing the beam pipe mounting portion 10b are beams. It is formed in a curved shape inscribed in the same shape as the inner surface shape of the pipe mounting portion 10b.
In addition, the surfaces 11c and 11c facing the beam pipe mounting portion 10b in the side surface portions 11b and 11b of the reinforcing member 11 have a shape that forms a slight gap without being inscribed in the inner side surface of the beam pipe mounting portion 10b. You may implement. In this case, at the time of a vehicle collision, the beam pipe mounting portion 10b of the bracket body 10 can contact the surfaces 11c and 11c of the reinforcing member 11 facing the beam pipe mounting portion 10b to receive an impact at the time of the vehicle collision.
Further, the outer space between the side surface portions 11 b and 11 b of the reinforcing member 11 is formed to be narrower than the space between the bolt holes 10 e and 10 e provided in the beam pipe mounting portion 11 b of the bracket body 10. For this reason, the operation | work which screws the volt | bolt 6 into the said bolt hole 10e, 10e can be performed easily.

ブラケット本体１０の支柱取付部１０ａと補強部材１１の背面部１１ａを支柱に固定する手段として、本実施例では、支柱１を道路と反対側から貫通して補強部材の背面部１１ａへ通したボルト５に、四角ナット（又は六角ナットでも可）１２をねじ込み締結している。なお、固定手段はこれに限定されるものではなく、前記背面部１１ａと支柱取付部１０ａのうち、少なくとも背面部１１ａのボルト孔１１ｄをねじ孔に形成することにより、前記ボルト５をねじ孔にねじ込み、支柱取付部１０ａ及び背面部１１ａを支柱１に固定することもできる。 In this embodiment, as a means for fixing the column mounting portion 10a of the bracket body 10 and the back surface portion 11a of the reinforcing member 11 to the column, a bolt that penetrates the column 1 from the opposite side to the road and passes through the back surface portion 11a of the reinforcing member. A square nut (or a hexagonal nut) 12 is screwed into 5 and fastened. The fixing means is not limited to this, and at least the bolt hole 11d of the back surface portion 11a of the back surface portion 11a and the column mounting portion 10a is formed into a screw hole, whereby the bolt 5 is turned into a screw hole. It is also possible to fix the post 1 to the support 1 by screwing the support 10 a and the back part 11 a.

以上要するに、支柱１の頂部へブラケット２を取り付けるには、支柱１の頂部にキャップ９を被せ、これらを道路と反対側から道路側に向かってボルト５で水平に貫通させて、当該ボルト５の先端部を道路側へ突き出した状態とする。
一方、ブラケット本体１０の内側へ、補強部材１１を、そのコ字形の開口部をビームパイプ４側へ向け、ブラケット本体１０の支柱取付部１０ａに設けたリブ１０ｆの上面を滑らせて挿入し、補強部材１１の背面部１１ａを支柱取付部１０ａの内側面に内接させて、双方に設けたボルト孔１１ｄ、１０ｄの中心を一致させる。と同時に、補強部材１１の両側面部１１ｂ、１１ｂのビームパイプ取付部１０ｂに対向する面１１ｃ、１１ｃを、ブラケット本体１０のビームパイプ取付部１０ｂの内側面に内接させてブラケット２を組み込む。要するに、この補強部材１１は、ブラケット本体１０のビームパイプ取付部１０ｂを内側から支保する補強リブの働きをする。
このブラケット２の補強部材１１の両側面部１１ｂ、１１ｂの間に四角ナット１２を入れ込んだ状態とし、中心を一致させた前記ボルト孔１１ｄ、１０ｄを、前記支柱１の道路側へ突き出たボルト５の先端部に通して当該ボルト５と前記四角ナット１２との締結を行うことにより、前記ブラケット２を支柱１の頂部へ取り付ける（以上、図５、図８、及び図９参照）。 In short, in order to attach the bracket 2 to the top of the column 1, the cap 9 is put on the top of the column 1, and these are horizontally penetrated from the opposite side of the road to the road side with the bolt 5. The tip is projected to the road side.
On the other hand, the reinforcing member 11 is inserted into the bracket body 10 by sliding the upper surface of the rib 10f provided on the column mounting portion 10a of the bracket body 10 with the U-shaped opening facing the beam pipe 4 side, The back surface portion 11a of the reinforcing member 11 is inscribed in the inner side surface of the column mounting portion 10a, and the centers of the bolt holes 11d and 10d provided on both sides are made to coincide. At the same time, the brackets 2 are assembled with the surfaces 11c and 11c of the side surface portions 11b and 11b of the reinforcing member 11 facing the beam pipe mounting portions 10b in contact with the inner surface of the beam pipe mounting portion 10b of the bracket body 10. In short, the reinforcing member 11 functions as a reinforcing rib that supports the beam pipe mounting portion 10b of the bracket body 10 from the inside.
Bolts 5 are formed such that the square nuts 12 are inserted between the side surface portions 11b, 11b of the reinforcing member 11 of the bracket 2, and the bolt holes 11d, 10d whose centers are aligned with each other are projected to the road side of the support column 1. The bracket 2 is attached to the top of the support column 1 by fastening the bolt 5 and the square nut 12 through the tip end (see FIGS. 5, 8, and 9).

なお、本実施例では、補強部材１１の両側面部１１ｂ、１１ｂの内法間隔を、四角ナット１２の出入りを許容して共回りを防止するのに適した間隔で実施している。このため、前記ボルト５と四角ナット１２との締結作業は、四角ナット１２側に締結用工具を用いる等して両手作業を行うことなく、歩道側から当該ボルト５の頭部を回転させるだけで、簡易、且つ確実に行うことができる。 In addition, in the present Example, the internal space | interval of the both-sides surface parts 11b and 11b of the reinforcement member 11 is implemented by the space | interval suitable for allowing the square nut 12 to go in and out and preventing corotation. For this reason, the fastening work of the bolt 5 and the square nut 12 can be performed by simply rotating the head of the bolt 5 from the sidewalk side without using both hands such as using a fastening tool on the square nut 12 side. Simple and reliable.

次に、支柱１の頂部にブラケット２を取り付ける作業を行った段階で、図１０に示したように、インナースリーブ３の外周へ嵌めて突き合わせたビームパイプ４をブラケット２に取り付ける作業を行う。
前記インナースリーブ３及びビームパイプ４の寸法は、インナースリーブ３の外周へビームパイプ４を嵌め込む作業を支障なく行い得る大きさに設定されている。ちなみに、図示例のインナースリーブ３は、外径４０ｍｍ程度、長さ２６０ｍｍ程度の鉄製パイプで実施し、ビームパイプ４は、外径４８ｍｍ程度、内径４４ｍｍ程度、長さ３ｍ程度の鉄製パイプで実施している。
また、インナースリーブ３及びビームパイプ４の端部には、インナースリーブ３の中央部でビームパイプ４、４の端部同士を突き合わせると一致するねじ孔（ナットで止める場合は貫通孔）３ａ〜３ｃ、４ａ〜４ｃがそれぞれ設けられている。 Next, when the work of attaching the bracket 2 to the top of the support column 1 is performed, as shown in FIG. 10, the work of attaching the beam pipe 4 fitted to and abutted to the outer periphery of the inner sleeve 3 to the bracket 2 is performed.
The dimensions of the inner sleeve 3 and the beam pipe 4 are set to such a size that the operation of fitting the beam pipe 4 into the outer periphery of the inner sleeve 3 can be performed without hindrance. Incidentally, the inner sleeve 3 in the illustrated example is implemented with an iron pipe having an outer diameter of about 40 mm and a length of about 260 mm, and the beam pipe 4 is implemented with an iron pipe having an outer diameter of about 48 mm, an inner diameter of about 44 mm, and a length of about 3 m. ing.
Further, the end portions of the inner sleeve 3 and the beam pipe 4 have screw holes (through holes in the case of fastening with nuts) 3 a to 3 a that coincide with the end portions of the beam pipes 4 and 4 at the center of the inner sleeve 3. 3c and 4a-4c are provided, respectively.

かくして、インナースリーブ３の両端部へビームパイプ４、４を嵌め込み、同インナースリーブ３の中央に一つの継ぎ目を形成するように２本のビームパイプ４を突き合わせた状態で、一致する前記ねじ孔３ｂ、４ｂへボルト７をねじ込むと共に、一致する前記ねじ孔３ｃ、３ｃへボルト８をねじ込むことにより、インナースリーブ３と２本のビームパイプ４の端部との結合が必要十分な強度で行われる。
次に、図１１Ａ、Ｂに示したように、２本のビームパイプ４、４の端部を、継ぎ目が、ブラケット本体１０のビームパイプ取付部１０ｂの中央部でほぼ一致するように当てがい、インナースリーブ３のねじ孔３ａ、及びビームパイプ４のねじ孔４ａ、並びにビームパイプ取付部１０ｂのボルト孔１０ｅとを一致させる。
しかる後、ビームパイプ取付部１０ｂの内側の下方からインナースリーブ３の中心方向へ斜め上向き（水平線から上向きに３０度方向）の姿勢で前記ボルト孔１０ｅを貫通させて、前記ねじ孔３ａ及びねじ孔４ａへねじ込んだボルト６で固定することにより、ビームパイプ４をブラケット２に取り付ける作業を完了する。 Thus, when the beam pipes 4 and 4 are fitted to both ends of the inner sleeve 3 and the two beam pipes 4 are butted so as to form one seam in the center of the inner sleeve 3, the matching screw holes 3b are aligned. The bolt 7 is screwed into 4b and the bolt 8 is screwed into the corresponding screw holes 3c, 3c, whereby the inner sleeve 3 and the ends of the two beam pipes 4 are coupled with each other with a necessary and sufficient strength.
Next, as shown in FIGS. 11A and 11B, the end portions of the two beam pipes 4 and 4 are applied so that the seam substantially coincides with the center portion of the beam pipe mounting portion 10 b of the bracket body 10. The screw hole 3a of the inner sleeve 3, the screw hole 4a of the beam pipe 4, and the bolt hole 10e of the beam pipe mounting portion 10b are made to coincide.
Thereafter, the bolt hole 10e is penetrated in a posture obliquely upward from the lower side inside the beam pipe mounting portion 10b toward the center of the inner sleeve 3 (30 degrees upward from the horizontal line), and the screw hole 3a and the screw hole The work of attaching the beam pipe 4 to the bracket 2 is completed by fixing with the bolt 6 screwed into 4a.

なお、本実施例では、インナースリーブ３、ビームパイプ４、及びブラケット２（ブラケット本体１０）をボルト６で合一に固定するほか、インナースリーブ３及びビームパイプ４を異なるボルト７、８で固定しているが、ボルト（ねじ孔）の個数および設置部位は勿論これに限定されない。歩行者および運転者（車両の乗員）の視線から目立たない部位にボルトを設置でき、インナースリーブ３、ビームパイプ４、及びブラケット２が互いに強固に固定できることを条件に、種々のバリエーションで実施可能である。 In this embodiment, the inner sleeve 3, the beam pipe 4, and the bracket 2 (bracket body 10) are fixed together with bolts 6, and the inner sleeve 3 and the beam pipe 4 are fixed with different bolts 7 and 8. However, the number of bolts (screw holes) and the installation site are of course not limited thereto. Bolts can be installed in inconspicuous parts from the line of sight of pedestrians and drivers (vehicle occupants), and can be implemented in various variations, provided that the inner sleeve 3, the beam pipe 4, and the bracket 2 can be firmly fixed to each other. is there.

図１２は、前記防護柵を構成するビームパイプ継手構造のうち、下位（中段、下段）のビームパイプ４の継手構造の施工要領を示している。前記継手構造は、上記した上段のビームパイプ４の継手構造と比して、支柱の頭部に被せるキャップ９を除き、ブラケット２を構成するブラケット本体１０及び補強部材１１はもとより、インナースリーブ３、ビームパイプ４など、上段のビームパイプ４の継手構造に使用した構成部材と同一の構成部材を用い同様の作業工程を経て、同様のビームパイプ継手構造を実現することができる。ひいては、同様の組み立て手順と作業の繰り返しにより防護柵の設置作業を効率よく進めることができる。 FIG. 12 shows a construction procedure of the joint structure of the lower (middle stage, lower stage) beam pipe 4 among the beam pipe joint structures constituting the protective fence. The joint structure is different from the joint structure of the upper beam pipe 4 described above, except for the cap 9 that covers the head of the support column, the bracket body 10 and the reinforcing member 11 constituting the bracket 2, the inner sleeve 3, A similar beam pipe joint structure can be realized through the same working steps using the same constituent members as those used for the joint structure of the upper beam pipe 4 such as the beam pipe 4. As a result, the installation work of a protective fence can be efficiently advanced by repeating the same assembly procedure and work.

以上説明したように、実施例１に係る防護柵のビームパイプ継手構造によれば、一箇所の継ぎ目を形成して突き合わせたビームパイプ４の全体を、支柱１に取り付けたブラケット２の道路側に露出して設置できるので（図１１Ａ、Ｂ参照）、ビームパイプ４の連続性を極力損なうことがない。また、一箇所の継ぎ目で実施できるので、金属片等の付着を防止することができる。さらに、ブラケット本体１０のビームパイプ取付部１０ｂが下方に湾曲した形状となっており、上面及び前面がなにもない状態なので、ビームパイプ４の取り付けを簡単に行うことができる。
また、ブラケット２を、その外郭を形成するブラケット本体１０と、ブラケット本体１０の内側に密接状態に嵌め込み当該ブラケット本体１０を補強する補強部材１１との２ピース構造で実施するので、ブラケット本体１０の剛性を合理的に高めることができ、ビームパイプ４を安定性の高い状態で支持できる（図５参照）。
さらに、ブラケット２の外郭を形成するブラケット本体１０を、歩行者および運転者（車両の乗員）の視線から目立たない取付位置、及び大きさで実施できる。接合部材として用いるボルト６〜８を、歩行者および運転者（車両の乗員）の視線から目立たない部位に設けて実施できる。四角ナット１２においては一切見えない目隠し状態で実施できる。 As described above, according to the beam pipe joint structure of the guard fence according to the first embodiment, the entire beam pipe 4 formed by joining a single seam is placed on the road side of the bracket 2 attached to the column 1. Since it can be exposed and installed (see FIGS. 11A and 11B), the continuity of the beam pipe 4 is not lost as much as possible. Moreover, since it can implement by the joint of one place, adhesion of a metal piece etc. can be prevented. Furthermore, since the beam pipe mounting portion 10b of the bracket body 10 is curved downward and has no upper surface and no front surface, the beam pipe 4 can be easily mounted.
Further, since the bracket 2 is implemented by a two-piece structure including a bracket body 10 that forms the outer shell thereof and a reinforcing member 11 that is closely fitted inside the bracket body 10 and reinforces the bracket body 10, The rigidity can be increased reasonably, and the beam pipe 4 can be supported in a highly stable state (see FIG. 5).
Furthermore, the bracket main body 10 forming the outline of the bracket 2 can be implemented at an attachment position and a size that are not conspicuous from the sight of the pedestrian and driver (vehicle occupant). The bolts 6 to 8 used as the joining member can be provided by being provided in a portion that is not conspicuous from the line of sight of the pedestrian and the driver (vehicle occupant). The square nut 12 can be implemented in a blinded state invisible.

上記した実施例１に係るブラケット２のブラケット本体１０は、下面を開口した筒形断面形状に形成して実施しているが、図１３Ａ、Ｂに示したように、下面部を有する筒形断面形状に形成したブラケット本体１０’を用いてもよい。このブラケット本体１０’によると、下面部（底面部）を有することにより、前記補強部材１１及び四角ナット１２の落下を確実に防止できる利点がある。 Although the bracket main body 10 of the bracket 2 according to the first embodiment described above is formed and formed into a cylindrical cross-sectional shape having an open bottom surface, as shown in FIGS. 13A and 13B, a cylindrical cross-section having a bottom surface portion. A bracket body 10 'formed in a shape may be used. According to the bracket main body 10 ′, having the lower surface portion (bottom surface portion) has an advantage that the reinforcing member 11 and the square nut 12 can be reliably prevented from falling.

以上に実施例を図面に基づいて説明したが、本発明は、図示例の限りではなく、その技術的思想を逸脱しない範囲において、当業者が通常に行う設計変更、応用のバリエーションの範囲を含むことを念のために言及する。 The embodiments have been described with reference to the drawings. However, the present invention is not limited to the illustrated examples, and includes a range of design changes and application variations that are usually made by those skilled in the art without departing from the technical idea thereof. I will mention that just in case.

本発明を適用する防護柵の全体構造を概略的に示す立面図である。It is an elevation view which shows roughly the whole structure of the guard fence to which this invention is applied. 本発明を適用する防護柵の全体構造を概略的に示す側面図である。It is a side view which shows roughly the whole structure of the guard fence to which this invention is applied. 図１に係るＸ部の拡大図である。It is an enlarged view of the X section which concerns on FIG. 図３の平面図である。FIG. 4 is a plan view of FIG. 3. 図３と図４のＶ−Ｖ線矢視断面図である。FIG. 5 is a cross-sectional view taken along line VV in FIGS. 3 and 4. Ａは、本発明に係る防護柵のビームパイプ継手構造のブラケットを構成するブラケット本体を示した斜視図であり、Ｂは、同後方斜視図であり、Ｃは、同側面図である。A is a perspective view showing a bracket body constituting a bracket of a beam pipe joint structure of a guard fence according to the present invention, B is a rear perspective view thereof, and C is a side view thereof. 本発明に係る防護柵のビームパイプ継手構造のブラケットを構成する補強部材を示す斜視図である。It is a perspective view which shows the reinforcement member which comprises the bracket of the beam pipe joint structure of the guard fence which concerns on this invention. 支柱にブラケットを取り付ける状態を示す分解斜視図である。It is a disassembled perspective view which shows the state which attaches a bracket to a support | pillar. 支柱にブラケットを取り付けた状態を示す斜視図である。It is a perspective view which shows the state which attached the bracket to the support | pillar. 支柱に取り付けたブラケットにインナースリーブ及びビームパイプを取り付ける状態を示す分解斜視図である。It is a disassembled perspective view which shows the state which attaches an inner sleeve and a beam pipe to the bracket attached to the support | pillar. Ａは、支柱に取り付けたブラケットにインナースリーブ及びビームパイプを取り付けた状態を示す斜視図であり、Ｂは、同後方斜視図である。A is a perspective view showing a state where an inner sleeve and a beam pipe are attached to a bracket attached to a support column, and B is a rear perspective view of the same. 中段および下段のビームパイプ継手構造の作業要領を示した分解斜視図である。It is the disassembled perspective view which showed the operation | work point of the beam pipe joint structure of the middle stage and the lower stage. Ａは、本発明に係る防護柵のビームパイプ継手構造のブラケットを構成するブラケット本体の異なる実施例を示した斜視図であり、Ｂは、同後方斜視図である。A is the perspective view which showed the Example from which the bracket main body which comprises the bracket of the beam pipe joint structure of the protection fence which concerns on this invention was shown, B is the back perspective view.

Explanation of symbols

１支柱
２ブラケット
３インナースリーブ
３ａ、３ｂ、３ｃねじ孔
４ビームパイプ
４ａ、４ｂ、４ｃねじ孔
５ボルト
６、７、８ボルト
９キャップ
１０ブラケット本体
１０ａ支柱取付部
１０ｂビームパイプ取付部
１０ｃ上面部
１０ｄ、１０ｅボルト孔
１０ｆ、１０ｇリブ
１１補強部材
１１ａ背面部
１１ｂ側面部
１１ｃ前縁部
１１ｄボルト孔
１２四角ナット
１０’ ブラケット本体 DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Bracket 3 Inner sleeve 3a, 3b, 3c Screw hole 4 Beam pipe 4a, 4b, 4c Screw hole 5 Bolt 6, 7, 8 Bolt 9 Cap 10 Bracket main body 10a Strut attachment part 10b Beam pipe attachment part 10c Upper surface part 10d 10e Bolt hole 10f, 10g Rib 11 Reinforcing member 11a Back surface portion 11b Side surface portion 11c Front edge portion 11d Bolt hole 12 Square nut 10 'Bracket body

Claims

In the beam pipe joint structure of the protective fence, where the bracket is attached to the road side of the column and the beam pipe is attached to the bracket using the inner sleeve,
The bracket is composed of a bracket body and a reinforcing member inserted into the bracket body, and the bracket body has a column mounting portion on the column side and a beam pipe mounting unit on the road side,
The reinforcing member has a back part inscribed inside the support part of the bracket body, and is inscribed in the support part of the bracket body and the beam pipe attachment part on both sides of the back part, or slightly. It has a side surface that forms a gap, and is inserted between the support post mounting part and the beam pipe mounting part of the bracket body,
The bracket is fixed to the column by fixing the column mounting part of the bracket body and the back part of the reinforcing member with a bolt penetrating the column,
The beam pipe of the protective fence, wherein the beam pipe mounting portion of the bracket body of the bracket is bolted to the inner sleeve and the ends of the two beam pipes that are fitted and abutted to the outer periphery of the inner sleeve. Joint structure.

In the beam pipe joint structure of the protective fence, where the bracket is attached to the road side of the column and the beam pipe is attached to the bracket using the inner sleeve,
The bracket includes a bracket body and a reinforcing member inserted into the bracket body. The bracket body has a column mounting portion perpendicular to the column side, and extends from the upper end of the column mounting portion to the road side. Having a beam pipe mounting portion that has an upper surface portion and curves while hanging downward from a road-side tip of the upper surface portion;
The lateral width of the column mounting portion is smaller than the lateral width of the beam pipe mounting portion,
The upper surface portion has a trapezoidal shape that is gently tilted upward from the column mounting portion toward the beam pipe mounting portion and expanded in a bilaterally symmetric shape when viewed from the plane direction;
The reinforcing member has a vertical back surface inscribed inside the column mounting portion of the bracket body, and has side portions that are perpendicular to the beam pipe mounting portion of the bracket body from both sides of the back surface. The surface facing the beam pipe mounting part of the surface part is inscribed in the same shape as the inner side surface shape of the beam pipe mounting part, or is curved so as to form a slight gap. Inserted between the mounting part and
The bracket is fixed to the column by passing a bolt penetrating the column through a bolt hole formed in the column mounting unit of the bracket body and the back surface of the reinforcing member,
The end portions of the two beam pipes fitted to the outer periphery of the inner sleeve and the outer periphery of the inner sleeve and the beam pipe mounting portion of the bracket body of the bracket are connected to the bolt hole formed in the beam pipe mounting portion, the inner sleeve, A beam pipe joint structure for a guard fence, wherein bolt holes formed in the beam pipe are matched and bolted together.

The bracket main body of the bracket includes the support column mounting portion, an upper surface portion extending from the upper end of the support column mounting portion toward the road side, and a beam pipe mounting portion that curves while being lowered downward from the road end of the upper surface portion. The beam pipe joint structure for a guard fence according to claim 1, characterized in that:

The bracket main body of the bracket is formed in a cylindrical cross-sectional shape having a bottom portion on the bottom surface between the support column mounting portion and the beam pipe mounting portion and an upper surface portion on the top surface. The beam pipe joint structure of the protective fence described in 1.

The beam pipe has a cylindrical shape, and the beam pipe mounting portion of the bracket body of the bracket is formed in a curved shape along a part of the outer peripheral surface of the beam pipe on an outer surface thereof. Item 5. A beam pipe joint structure for a protective fence according to any one of Items 1 to 4.

The end portions of the two beam pipes that are fitted and abutted to the outer periphery of the inner sleeve penetrate the beam pipe mounting portion and the beam pipe obliquely upward from below the inner side of the beam pipe mounting portion of the bracket body, and pass through the inner sleeve. The beam pipe joint structure for a protective fence according to any one of claims 1 to 5, wherein the beam pipe joint structure is fixed with a bolt screwed in the center direction of the protective fence.

Ribs that are bent toward the inside of the bracket body are extended at the lower end portion of the support post mounting portion of the bracket body and the lower end portion of the beam pipe mounting portion. The beam pipe joint structure of the guard fence as described in any one of 5 and 6.

The bolt which penetrates the said support | pillar and fixes a bracket is fastened by the nut hold | maintained to the side part of the said reinforcement member in the non-rotating state, It described in any one of Claims 1-7 characterized by the above-mentioned. Beam pipe joint structure of the protective fence.