JP2004176497A

JP2004176497A - Soundproof fence structure and bracket for connection

Info

Publication number: JP2004176497A
Application number: JP2002347018A
Authority: JP
Inventors: Masanori Tomita; 正徳富田; Hirobumi Kawazoe; 博文川添
Original assignee: Nippon Steel Metal Products Co Ltd
Current assignee: Nippon Steel Metal Products Co Ltd
Priority date: 2002-11-29
Filing date: 2002-11-29
Publication date: 2004-06-24
Anticipated expiration: 2022-11-29
Also published as: JP3837382B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a soundproof fence structure which enables the safety and sure installation of a soundproof panel, excellent in soundproof effect, landscape property and visual guidance functionality, by using a structurally simple bracket for connection. <P>SOLUTION: A guard fence is constituted in such a manner that a vehicle protecting member 2 is mounted on the passage-of-vehicle side of a support 1, and the soundproof fence structure is constituted in such a manner that the soundproof panel 3 is mounted on the support 1 of the guard fence via the bracket 10. The soundproof panel 3 is high enough to protrude from the uppermost part of the guard fence; the bracket 10 is composed of a concave part 10a which is to be mounted on the outer periphery of the support 1, and flat parts 10b which are formed outward at both the edges of the concave part 10a; and a part, higher than an upper end of the concave part 10a, of the flat part 10b has a height needed to support the soundproof panel 3. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
この発明は、帯状ビーム材、パイプ状ビーム材などの車輌防護部材を備えたガードレール、ガードパイプなどの道路用（路側用）防護柵に防音パネルを取り付けて成る防音型柵構造体及び接続用ブラケットの技術分野に属し、更に云えば、特別に工夫した構造の接続用ブラケットを用いて、防護柵よりせいの高い防音パネルを安全、確実に取り付けて成る防音型柵構造体及び接続用ブラケットに関する。
【０００２】
【従来の技術】
従来、ガードレール、ガードパイプなどの道路用（路側用）防護柵は広く実施されている。最近では環境の保全・改善と景観性の見地から、前記防護柵に防音パネルを併用することはもとより、防音効果やデザインに更に改良を加えている。
【０００３】
例えば、下記の特許文献１に開示された「防音機能を有する防護柵」は、道路の歩車道境界に沿って立てられた支柱の上部の車輌通行側にガードレールの帯状ビーム材のような車輌防護部材が水平方向に架設され、その下側であって車輌防護部材と同じ車輌通行側の支柱間に防音パネルが取り付けられ、支柱の車輌通行側は防音パネルによって隠されている。車輌防護部材及び防音パネルはそれぞれ独立した個別の手段によって支柱に取り付けられている。
【０００４】
ところで、今般、本出願人に係る下記の特許文献２に開示した「低層用柵構造体等」は、ガードパイプなどによる道路用防護柵に防音パネルを取り付けて成る低層（市街地用）防音型防護柵に係り、低層（市街地用）防音パネルを支柱へ取り付けるための接続用ブラケット、及び防音パネルの取り付け方法を開示している。
【０００５】
【特許文献１】
特開平１０−３３８９１３号公報
【特許文献２】
特開２００２−１１５２２１号公報
【０００６】
【本発明が解決しようとする課題】
上記特許文献１は、車輌防護部材と防音パネルとを別個に独立した個別の手段で支柱に取り付けた構成であるから、支柱との取り合い構造が複雑で部品点数も多く、防音パネルの設置作業に時間とコストがかかる欠点が認められる。
また、車輌防護部材と防音パネルが共に同じ車輌通行側に設置されるため、支柱の地上高さが８０ｃｍでも、防音パネルの高さは５０ｃｍ程度に制限され、その分防音効果が低い欠点がある。しかも、車輌防護部材と防音パネルが同じ車輌通行側に設置されているが故に、車輌の衝突時には車輌防護部材と防音パネルの双方が等しく破損され易い欠点がある。
【０００７】
上記特許文献２に開示した技術は、防音パネルの設置を、特別に工夫した簡単で軽便な構造の接続用ブラケットを使用することにより、車輌防護部材の背後側（歩道側）であって道路に沿って並ぶ支柱と支柱との間の部分に行い得るので、防音パネルは少なくとも支柱の地上高さと同じ高さに設置でき、防音効果に優れるなどの作用効果を奏し、上記した各欠点を解決した構成となっている。
このように、上記特許文献２に係る技術は、前記課題を解決する上でかなり有用であったが、さらに有用な装置の開発が望まれていた。
【０００８】
したがって、本発明の目的は、施工性、経済性に優れていることは勿論、防音効果及び景観性並びに視線誘導機能性の観点からも非常に優れた防音パネルの設置を、特別に工夫した簡単で軽便な構造の接続用ブラケットを使用することにより、安全且つ確実に行い得る防音型柵構造体を提供することである。
本発明の目的はまた、前記防音型柵構造体を構築するのに至便であり、使用も容易な接続用ブラケットを提供することである。
【０００９】
【課題を解決するための手段】
上記従来技術の課題を解決するための手段として、請求項１記載の発明に係る防音型柵構造体によれば、
防護柵に防音パネルを取り付けて成る防音型柵構造体において、
防護柵は、道路に沿って立てられた支柱の車輌通行側に車輌防護部材が取り付けられた構成であり、防音パネルは、前記支柱と支柱との間の内のり寸法とほぼ同等の長さであって、該防音パネルは接続用ブラケットを介して防護柵の支柱に取り付けられて防音型柵構造体が構成されていること、
防音パネルは防護柵の最上部よりも突き出る高さとされていること、
接続用ブラケットは、前記支柱の外周に取り付ける凹面形状部と、該凹面形状部の両端縁に外向きに形成した平坦部とから成り、前記平坦部は凹面形状部の上端よりも高く形成されており、前記平坦部における凹面形状部の上端よりも高い部分は、防音パネルの支持に必要な高さを有することを特徴とする。
【００１０】
請求項２記載の発明に係る防音型柵構造体によれば、
防護柵に防音パネルを取り付けて成る防音型柵構造体において、
防護柵は、道路に沿って立てられた支柱の車輌通行側に車輌防護部材が取り付けられた構成であり、防音パネルは、前記支柱と支柱との間の内のり寸法とほぼ同等の長さであって、該防音パネルは接続用ブラケットを介して防護柵の支柱に取り付けられて防音型柵構造体が構成されていること、
防音パネルは防護柵の最上部よりも突き出る高さとされていること、
中間部の支柱に使用する接続用ブラケットは、中間部支柱の外周に取り付ける凹面形状部と、該凹面形状部の両端縁に外向きに形成した平坦部とから成り、前記平坦部は凹面形状部の上端よりも高く形成されており、前記平坦部における凹面形状部の上端よりも高い部分は、防音パネルの支持に必要な高さを有し、
端部の支柱に使用する接続用ブラケットは、端部支柱の外周に取り付ける凹面形状部と、該凹面形状部の一端縁に外向きに形成した平坦部とから成り、前記平坦部は凹面形状部の上端よりも高く形成されており、前記平坦部における凹面形状部の上端よりも高い部分は、防音パネルの支持に必要な高さを有することを特徴とする。
【００１１】
請求項３記載の発明は、請求項１又は２に記載した防音型柵構造体において、防音パネルにおいて防護柵の最上部より突き出ている部分の高さは、防音パネルの全高の２割程度であることを特徴とする。
【００１２】
請求項４記載の発明は、請求項１〜３のいずれか一に記載した防音型柵構造体において、
防音パネルは上下２段に積み重ねられており、接続用ブラケットの平坦部の上端は、上段の防音パネルの上部付近に位置していることを特徴とする。
【００１３】
請求項５記載の発明は、請求項１〜４のいずれか一に記載した防音型柵構造体において、
接続用ブラケットの凹面形状部は支柱とほぼ同等なせいであり、該凹面形状部の上端よりも高い平坦部は防音パネルの高さよりも低いせいであることを特徴とする。
【００１４】
請求項６記載の発明は、請求項１〜５のいずれか一に記載した防音型柵構造体において、
支柱において、車輌防護部材の位置とは反対側に接続用ブラケットの凹面形状部が取り付けられ、車輌防護部材を係止しているボルトによって支柱に支持されており、前記凹面形状部の下部は支柱を挟むバンドで支持されていることを特徴とする。
【００１５】
請求項７記載の発明は、請求項１〜６のいずれか一に記載した防音型柵構造体において、
中間部の支柱に使用する接続用ブラケットの凹面形状部は、前記支柱の外周を取り巻くＵ字形状に湾曲されていることを特徴とする。
【００１６】
請求項８記載の発明に係る接続用ブラケットは、請求項１に記載した防音型柵構造体に使用する接続用ブラケットであって、
中間部の支柱の外周に取り付ける凹面形状部と、該凹面形状部の両端縁に外向きに形成された平坦部とからなり、前記平坦部は凹面形状部の上端よりも高く形成されており、前記平坦部における凹面形状部の上端よりも高い部分は、防音パネルの支持に必要な高さを有することを特徴とする。
【００１７】
【発明の実施の形態及び実施例】
請求項１〜７に記載した発明に係る防音型柵構造体の実施形態を、図面に基いて説明する。
図１Ａ〜Ｃに示した防音型柵構造体は、道路に沿って例えば４ｍ程度の間隔をあけて列状に立てられた複数の支柱１…の上部の車輌通行側に、車輌防護部材の一例として帯状ビーム材２が水平方向に長く取り付けられた防護柵（ガードレール）において、前記支柱１と支柱１との間の内のり寸法とほぼ同等の長さ（４ｍ程度）の防音パネル３が、前記帯状ビーム材２の背後側（歩道側）であって隣接する支柱１と支柱１との間の部位に、接続用ブラケット１０を介して防護柵の支柱１に取り付けられた構成である。
【００１８】
前記防音パネル３は、図１Ｂに示したように、防護柵の最上部より突き出る高さで実施されている。
接続用ブラケット１０は、図２と図５に示したように、前記支柱１の外周に取り付ける凹面形状部１０ａと、該凹面形状部１０ａの両端縁に外向きに形成した平坦部１０ｂ、１０ｂとから成る。前記平坦部１０ｂ、１０ｂは凹面形状部１０ａの上端よりも高く形成されており、前記平坦部１０ｂ、１０ｂにおける凹面形状部１０ａの上端よりも高い部分は、防音パネル３の支持に必要な高さを有する（請求項１記載の発明）。
【００１９】
前記支柱１は、太さ（径）が１０ｃｍ程度で、地上高さが７０ｃｍ程度の丸パイプ支柱で実施されている。なお、前記支柱１は、丸パイプ支柱に限らず、角パイプ支柱でも略同様に実施できる。
【００２０】
前記帯状ビーム材２は、隣接する支柱１と支柱１の間隔に対応するように１体当たりの長手方向寸法が４ｍ程度で配置され、その端部は、支柱１に取り付けた帯状ビーム材用継手１２に強固にネジ止めする構造で水平方向に長く連結して実施されている。なお、前記車輌防護部材は、帯状ビーム材２に限らず、パイプ状ビーム材やケーブル状ビーム材でも同様に実施できる。
【００２１】
前記帯状ビーム材２を支柱１へ取り付ける手段は既に種々公知である。本実施形態では、図２に示したように、各支柱１…の車輌通行側へ当てがった平面視がハット形状の帯状ビーム材取付け用継手部材５を、該支柱１の径方向に貫通させた通しボルト４にて支柱１の地上６０ｃｍ程度の高さに固定し、該継手部材５の鍔部分５ａと帯状ビーム材２の裏面側とを当接してボルト１５とナット１６で止めることにより、当該帯状ビーム材２を支柱１へ取り付けている。
【００２２】
このように、前記帯状ビーム材２は、前記継手部材５により、支柱１の外面よりも更に数ｃｍ程度を車輌通行側へ突き出して取り付けられているので、隣接する支柱１と支柱１との間の部位は上下方向に広々と空いている。よって、当該部位では高さ制限を受けることがなく、支柱１とほぼ同等なせいの防音パネルは勿論のこと、支柱１よりもかなりせいが高い後述する防音パネル３を設置できる。
【００２３】
かくして、隣接する支柱１と支柱１との間の上下方向に広々と空いている部位には前記防音パネル３が設置されている。この防音パネル３は、長手方向寸法が隣接する支柱１と支柱１との間の間隔に略等しい４ｍ程度で、高さが５０ｃｍ程度の防音パネル３ａを、図４Ｂに示したように、上下に２個積み重ねた構造で実施され、トータルで１００ｃｍ程度のせいを有している。なお、前記防音パネル３は、防音パネル３ａを上下に２個積み重ねた構造で実施しているがこれに限定されず、もちろん１個の防音パネル３でも実施できる。
【００２４】
前記防音パネル３ａの構成は格別新規でなく、図示は省略するが、車輌通行側面のみ吸音孔を有する多孔板で形成し、反対側面（歩道側面）は吸音孔の無い無孔板で形成した薄型の箱内に吸音材を充填した構成で実施されるが、もちろんこれに限定されない。また、この防音パネル３は、図１Ａに示したように、支柱２の太さ（又は支柱１の車輌通行方向と直交する方向の幅寸、以下同じ）と略同じかそれよりも小さい厚さ寸法で実施されている。
【００２５】
前記接続用ブラケット１０は、図６に示したように、その凹面形状部１０ａが支柱１とほぼ同等なせいであり、該凹面形状部１０ａの上端よりも高い平坦部１０ｂ、１０ｂは防音パネル３の高さよりも低いせいで実施されている（請求項５記載の発明）。前記接続用ブラケット１０の構成を更に具体的に説明すると、この接続用ブラケット１０は、支柱１とほぼ同等のせいを有する凹面形状部１０ａの高さ（図示例では６１ｃｍ程度）に対して平坦部１０ｂ、１０ｂの高さを高く（図示例では９１．５ｃｍ程度）形成することにより、該平坦部１０ｂの上端は上段の防音パネル３ａの上部付近に位置して（請求項４記載の発明）、支柱１より高い地上高さ１００ｃｍ程度の防音パネル３を安全且つ確実に支持可能とする構造とされている。なお、前記接続用ブラケット１０の凹面形状部１０ａは、支柱１の外周を取り巻くＵ字形状に湾曲して実施されているが（請求項７記載の発明）、支柱１の外周を取り巻く形態であればよく、Ｕ字形状に限定されない。
【００２６】
次に、前記防音パネル３と接続用ブラケット１０との接合手段を説明する。
【００２７】
防音パネル３を構成する防音パネル３ａ、３ａの両側端にはそれぞれ、平面視が略コ字形状（溝型鋼状）のリブ９が、そのフランジ（溝開口）９ａを支柱１に向けてビス止めされている。また、前記リブ９の少なくとも車輌通行側のフランジ９ａの上下方向には、前記接続用ブラケット１０の平坦部１０ｂとの接続に必要なボルト孔９ｂが水平方向に長い長孔としてバランス良く（図示例では、各フランジ９ａの上下部に２箇所ずつ）設けられていると共に、飛散防止ワイヤー８の端部を結合するための通し孔９ｃが、当該フランジ９ａの上端部に設けられている。該飛散防止ワイヤー８は、二次災害を防ぐべく、車輌衝突時に破損した防音パネル３ａが飛散することを防止するためのもので、該防音パネル３ａの上部を長手方向に貫通する配置で設置されている。
【００２８】
前記接続用ブラケット１０には、図５に示したように、その凹面形状部１０ａのほぼ中央上部に前記通しボルト４を通すボルト孔１０ｃが設けられ、前記平坦部１０ｂの上下方向には、前記防音パネル３（３ａ、３ａ）との接続に必要な数のボルト孔１０ｄ（図示例では４箇所）と、飛散防止ワイヤー８の端部の結合に必要な数の通し孔１０ｅ（図示例では２箇所）とが、前記防音パネル３のリブ９のフランジ９ａに設けられたボルト孔９ｂ及び通し孔９ｃとそれぞれ一致する位置に設けられている。
【００２９】
かくして、上記接続用ブラケット１０は、帯状ビーム材２（車輌防護部材）の位置とは反対側にその凹面形状部１０ａが取り付けられ、該帯状ビーム材２を係止している通しボルト４によって該支柱１に支持される。前記支柱１に支持された接続用ブラケット１０の平坦部１０ｂに、前記防音パネル３のリブ９のフランジ９ａを重ね合わせ、前記一致するボルト孔１０ｄ…と９ｂ…を利用してボルト１７とナット１８で止めることにより、図６に示したように、当該接続用ブラケット１０と防音パネル３とが接合される。また、前記凹面形状部１０ａの下部については、図３と図６に示したように、支柱１を挟むバンド１１が、前記一致するボルト孔１０ｄ…と９ｄ…のうち最下部のボルト孔１０ｄ、９ｄを利用してボルト１７とナット１８で止められ、前記リブ９のフランジ９ａを介して支柱１に支持されている（以上、請求項６記載の発明）。
【００３０】
前記防音パネル３（及び３ａ）の飛散防止ワイヤー８は、その端部を前記一致する通し孔１０ｅ…と９ｃ…へ通し、内側からナットをねじ込んで止める手段などで接続用ブラケット１０の平坦部１０ｂに結合されている。
【００３１】
更に、前記防音型柵構造体の端位置の支柱１’に関しては、前記接続用ブラケット１０をほぼ半割りにした接続用ブラケット１０’（図７Ａ、Ｂ参照）を使用する。
【００３２】
この接続用ブラケット１０’は、端部の支柱１’の外周に取り付ける凹面形状部１０ａ’（高さ６１ｃｍ程度）と、該凹面形状部１０ａ’の一端縁に外向きに形成した平坦部１０ｂ（高さ９１．５ｃｍ程度）とから成り、前記平坦部１０ｂは凹面形状部１０ａ’の上端よりも高く形成されており、前記平坦部１０ｂにおける凹面形状部１０ａ’の上端よりも高い部分は、防音パネル３の支持に必要な高さを有しており、上述した中間部の支柱１に関する接合手段とほぼ同様の要領で、図８と図９に示したように、該支柱１’に支持せしめて防音パネル３と接合する（以上、請求項２記載の発明）。
【００３３】
ちなみに、図８は、防音型柵構造体の端部の支柱１’における上部の接合状態を示しており、図９は、防音型柵構造体の端部の支柱１’における下部の接合状態を示している。また、図９中の符号１１’はバンド材であり、支柱１’を取り囲む大きさの輪状に形成されている。
【００３４】
このように、上記防音型柵構造体を構成する、支柱１、１’に支持した接続用ブラケット１０、１０’と、該接続用ブラケット１０、１０’に取り付けた防音パネル３について、前記接続用ブラケット１０、１０’の凹面形状部１０ａ、１０ａ’の高さはそれぞれ６１ｃｍ程度であり、防音パネル３を構成する上下２段の防音パネル３ａ、３ａの高さはそれぞれ５０ｃｍ程度である。よって、前記凹面形状部１０ａ、１０ａ’の上端は、上下２段の防音パネル３ａ、３ａの境界部分の少し（１１ｃｍ程度）上方部分まで達する高さで実施されている。
【００３５】
したがって、上記構成の防音型柵構造体によれば、前記防音パネル３の下段の防音パネル３ａを安定して設置できることは勿論、上段の防音パネル３ａについても、下段の防音パネル３ａから上方に１１ｃｍ程度突き出た接続用ブラケット１０、１０’の凹面形状部１０ａ、１０ａ’のリブ効果、及び接続用ブラケット１０、１０’の平坦部１０ｂ、１０ｂが上段パネル３ａの上方付近まで延設していることにより安定して設置できるので、安全・確実な防音型柵構造体を構築できるのである。
【００３６】
【本発明が奏する効果】
請求項１〜７に記載した発明に係る防音型柵構造体によれば、防音パネルの設置を、特別に工夫した簡単で軽便な構造の接続用ブラケットを使用することにより、防護柵（支柱）よりもかなりせいが高い地上高さが１００ｃｍ程度の防音パネルの設置を安定して行うことができるので、施工性、経済性に優れていることは勿論、防音効果及び景観性並びに視線誘導機能性の観点から理想的な防音型柵構造体を構築することができる。
請求項８記載の発明に係る防音型柵構造体に使用する接続用ブラケットによれば、防護柵（支柱）よりかなりせいが高い地上高さ１００ｃｍ程度の防音パネルも安全且つ確実に設置できるので安定した防音型柵構造体を構築することができる。
【図面の簡単な説明】
【図１】Ａは、本発明に係る防音型柵構造体の実施形態を示した平面図であり、Ｂは、同正面図であり、Ｃは同側面図である。
【図２】中間部の支柱に対して防音パネルの上部を接続用ブラケットで取り付けた構造を示した平面図である。
【図３】中間部の支柱に対して防音パネルの下部を接続用ブラケットで取り付けた構造を示した平面図である。
【図４】Ａは、防音パネルを示した平面図であり、Ｂは、同正面図であり、Ｃは、同側面図である。
【図５】接続用ブラケットを示した斜視図である。
【図６】Ａ、Ｂは、支柱に取り付ける接続用ブラケットと防音パネルとの接合状態を段階的に示した斜視図である。
【図７】Ａ、Ｂはそれぞれ、端部の支柱に取り付ける接続用ブラケットを示した斜視図である。
【図８】端部の支柱に対して防音パネルの上部を接続用ブラケットで取り付けた構造を示した平面図である。
【図９】端部の支柱に対して防音パネルの下部を接続用ブラケットで取り付けた構造を示した平面図である。
【符号の説明】
１、１’ 支柱
２帯状ビーム材（車輌防護部材）
３防音パネル
３ａ防音パネル
４通しボルト
５帯状ビーム材取付け用継手部材
５ａ鍔部
８飛散防止ワイヤー
９リブ
９ａフランジ
９ｂボルト孔
９ｃ通し孔
１０、１０’ 接続用ブラケット
１０ａ、１０ａ’ 凹面形状部
１０ｂ平坦部
１０ｃボルト孔
１０ｄボルト孔
１０ｅ通し孔
１１、１１’ バンド
１２帯状ビーム材用継手
１５、１７ボルト
１６、１８ナット[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a soundproof fence structure and a connection bracket, in which a soundproof panel is attached to a road (roadside) protective fence such as a guardrail or a guard pipe provided with a vehicle protective member such as a belt-shaped beam or a pipe-shaped beam. More specifically, the present invention relates to a soundproof fence structure and a connection bracket in which a soundproof panel having a height higher than that of a protective fence is securely and securely attached using a specially designed connection bracket.
[0002]
[Prior art]
Conventionally, road (roadside) protective fences such as guardrails and guard pipes have been widely implemented. Recently, from the viewpoint of environmental preservation and improvement and landscape, not only the soundproof panel is used together with the protective fence but also the soundproofing effect and the design are further improved.
[0003]
For example, a "protection fence having a soundproof function" disclosed in Patent Document 1 below is a vehicle protection such as a band-shaped beam material of a guardrail on a vehicle-passing side above a supporter standing along a pedestrian road boundary. The member is erected in the horizontal direction, and a soundproof panel is attached between the supports on the same vehicle-passing side as the vehicle protection member under the member, and the vehicle-passing side of the support is hidden by the soundproof panel. The vehicle protection member and the soundproof panel are attached to the column by independent individual means.
[0004]
By the way, recently, a “low-rise fence structure or the like” disclosed in the following Patent Document 2 of the present applicant is a low-rise (for urban area) soundproof type protection in which a soundproof panel is attached to a road protection fence such as a guard pipe. It discloses a connection bracket for attaching a low-rise (for urban area) soundproof panel to a support post, and a method for mounting the soundproof panel.
[0005]
[Patent Document 1]
JP-A-10-338913 [Patent Document 2]
JP-A-2002-115221
[Problems to be solved by the present invention]
Since the above-mentioned Patent Document 1 has a configuration in which the vehicle protection member and the soundproof panel are attached to the support by separate and independent means, the structure for connecting the support with the support is complicated, the number of parts is large, and the work of installing the soundproof panel is difficult. There are disadvantages that require time and cost.
In addition, since both the vehicle protection member and the soundproof panel are installed on the same vehicle traffic side, even if the height of the support is 80 cm above the ground, the height of the soundproof panel is limited to about 50 cm, and the soundproof effect is low accordingly. . In addition, since the vehicle protection member and the soundproof panel are provided on the same vehicle traffic side, there is a disadvantage that both the vehicle protection member and the soundproof panel are easily damaged during collision of the vehicle.
[0007]
The technology disclosed in Patent Document 2 uses a specially devised connection bracket having a simple and light structure to install a soundproof panel, so that the soundproof panel is installed behind the vehicle protection member (on the sidewalk side) and on the road. Since it can be performed at the portion between the pillars arranged along the pillar, the soundproof panel can be installed at least at the same height as the ground height of the pillar, and it has the effect such as excellent soundproofing effect, and has solved each of the above-mentioned disadvantages. It has a configuration.
As described above, the technique according to Patent Literature 2 is quite useful in solving the above-mentioned problem, but development of a more useful device has been desired.
[0008]
Therefore, the object of the present invention is to provide a sound-insulating panel which is not only excellent in workability and economical efficiency but also extremely excellent in terms of sound-proofing effect and scenery and gaze guidance function by specially devised. Another object of the present invention is to provide a soundproof fence structure that can be performed safely and reliably by using a connection bracket having a simple structure.
Another object of the present invention is to provide a connection bracket that is convenient for constructing the soundproof fence structure and is easy to use.
[0009]
[Means for Solving the Problems]
As means for solving the problems of the prior art, according to the soundproof fence structure according to the invention of claim 1,
In a soundproof fence structure comprising a soundproof panel attached to a protective fence,
The protective fence has a structure in which a vehicle protection member is mounted on a vehicle-passing side of a column erected along the road, and the soundproof panel has a length substantially equal to an inner dimension between the column and the column. The soundproof panel is attached to a support fence post via a connection bracket to form a soundproof fence structure;
The soundproof panel is set to protrude higher than the top of the protective fence,
The connection bracket includes a concave shape portion attached to the outer periphery of the column, and flat portions formed outward at both end edges of the concave shape portion, and the flat portion is formed higher than an upper end of the concave shape portion. In addition, a portion of the flat portion higher than the upper end of the concave portion has a height necessary for supporting the soundproof panel.
[0010]
According to the soundproof fence structure according to the second aspect of the invention,
In a soundproof fence structure comprising a soundproof panel attached to a protective fence,
The protective fence has a structure in which a vehicle protection member is attached to a vehicle-passing side of a column standing along a road, and the soundproof panel has a length substantially equal to an inner dimension between the column and the column. The soundproof panel is attached to a support fence post via a connection bracket to form a soundproof fence structure;
The soundproof panel is set to protrude higher than the top of the protective fence,
The connecting bracket used for the support of the intermediate portion includes a concave portion attached to the outer periphery of the intermediate portion support, and flat portions formed outward at both end edges of the concave portion, and the flat portion is a concave portion. Is formed higher than the upper end of the flat portion, the portion higher than the upper end of the concave portion in the flat portion has a height required to support the soundproof panel,
The connection bracket used for the end post includes a concave portion attached to the outer periphery of the end post, and a flat portion formed outward on one edge of the concave portion, and the flat portion is a concave portion. And a portion of the flat portion higher than the upper end of the concave portion has a height necessary for supporting the soundproof panel.
[0011]
According to a third aspect of the present invention, in the soundproof fence structure according to the first or second aspect, the height of a portion of the soundproof panel protruding from the uppermost portion of the protective fence is about 20% of the total height of the soundproof panel. There is a feature.
[0012]
The invention according to claim 4 is the soundproof fence structure according to any one of claims 1 to 3,
The soundproof panels are stacked in upper and lower tiers, and the upper end of the flat part of the connection bracket is located near the upper part of the upper soundproof panel.
[0013]
The invention according to claim 5 is the soundproof fence structure according to any one of claims 1 to 4,
The concave-shaped portion of the connection bracket is substantially equal to the column, and the flat portion higher than the upper end of the concave-shaped portion is lower than the height of the soundproof panel.
[0014]
The invention according to claim 6 is the soundproof type fence structure according to any one of claims 1 to 5,
In the column, a concave-shaped portion of the connection bracket is attached to the opposite side of the position of the vehicle protective member, and is supported by the column by a bolt that locks the vehicle protective member, and a lower portion of the concave-shaped portion is a column. Characterized by being supported by a band sandwiching the.
[0015]
The invention according to claim 7 provides the soundproof fence structure according to any one of claims 1 to 6,
The concave-shaped portion of the connecting bracket used for the intermediate column is curved in a U-shape surrounding the outer periphery of the column.
[0016]
The connection bracket according to the invention according to claim 8 is a connection bracket used for the soundproof fence structure according to claim 1,
A concave portion to be attached to the outer periphery of the intermediate column, and a flat portion outwardly formed at both end edges of the concave portion, the flat portion is formed higher than the upper end of the concave portion, A portion of the flat portion higher than the upper end of the concave portion has a height necessary to support the soundproof panel.
[0017]
Embodiments and Examples of the Invention
An embodiment of a soundproof fence structure according to the invention described in claims 1 to 7 will be described with reference to the drawings.
The soundproof fence structure shown in FIGS. 1A to 1C is an example of a vehicle protection member on a vehicle passing side above a plurality of columns 1 arranged in a row at intervals of, for example, about 4 m along a road. In a protective fence (guard rail) on which a strip-shaped beam member 2 is attached in the horizontal direction, the soundproof panel 3 having a length (about 4 m) substantially equal to the inner dimension between the struts 1 and the struts 1 is used. The structure is such that it is attached to the pillar 1 of the protective fence via a connecting bracket 10 at a position behind the beam member 2 (on the sidewalk side) and between the adjacent pillars 1.
[0018]
As shown in FIG. 1B, the soundproof panel 3 is implemented at a height protruding from the top of the protective fence.
As shown in FIGS. 2 and 5, the connection bracket 10 includes a concave portion 10 a attached to the outer periphery of the column 1, and flat portions 10 b and 10 b formed outward on both end edges of the concave portion 10 a. Consists of The flat portions 10b and 10b are formed higher than the upper end of the concave portion 10a, and the portions of the flat portions 10b and 10b higher than the upper end of the concave portion 10a have a height required to support the soundproof panel 3. (Invention of claim 1).
[0019]
The strut 1 is implemented as a round pipe strut having a thickness (diameter) of about 10 cm and a ground height of about 70 cm. In addition, the said support | pillar 1 is not limited to a round pipe support | pillar, It can implement substantially similarly also with a square pipe support | pillar.
[0020]
The band-shaped beam member 2 has a longitudinal dimension per body of about 4 m so as to correspond to an interval between the adjacent columns 1, and an end portion thereof is a joint for the band-shaped beam member attached to the column 1. The structure is such that it is firmly screwed to the connector 12 and is connected horizontally long. Note that the vehicle protection member is not limited to the belt-shaped beam member 2 but can be similarly implemented with a pipe-shaped beam member or a cable-shaped beam member.
[0021]
Various means for attaching the strip-shaped beam member 2 to the column 1 are already known. In this embodiment, as shown in FIG. 2, the column-shaped beam material mounting joint member 5 having a hat shape in a plan view and applied to the vehicle passing side of each of the columns 1 is penetrated in the radial direction of the column 1. By fixing the column 1 to a height of about 60 cm above the ground with the through bolts 4 that have been made, abutting the flange portion 5 a of the joint member 5 with the back side of the band-shaped beam member 2, and stopping with the bolt 15 and the nut 16. The belt-shaped beam member 2 is attached to the column 1.
[0022]
As described above, since the band-shaped beam member 2 is attached to the vehicle passing side by about several cm from the outer surface of the column 1 by the joint member 5, the band-shaped beam member 2 is mounted between the adjacent column 1 and the column 1. Area is vacant in the vertical direction. Therefore, there is no height restriction at the part, and a soundproof panel 3 described later, which is considerably higher than the support 1, can be installed as well as a soundproof panel of the same size as the support 1.
[0023]
Thus, the soundproof panel 3 is installed in a vertically vacant portion between the adjacent columns 1. As shown in FIG. 4B, the soundproof panel 3 includes a soundproof panel 3 a having a longitudinal dimension of about 4 m, which is substantially equal to the distance between the adjacent pillars 1, and a height of about 50 cm. It is implemented with a structure in which two pieces are stacked, and has a total error of about 100 cm. The soundproof panel 3 has a structure in which two soundproof panels 3a are vertically stacked, but the present invention is not limited to this. Of course, one soundproof panel 3 can be used.
[0024]
Although the configuration of the soundproof panel 3a is not particularly novel and is not shown, a thin plate formed of a perforated plate having a sound absorbing hole only on the vehicle traffic side surface and a non-porous plate having no sound absorbing hole on the opposite side surface (sidewalk side surface). However, the present invention is not limited to this. As shown in FIG. 1A, the soundproof panel 3 has a thickness substantially equal to or smaller than the thickness of the column 2 (or the width of the column 1 in a direction orthogonal to the vehicle traffic direction, the same applies hereinafter). The dimensions have been implemented.
[0025]
As shown in FIG. 6, the connection bracket 10 has a concave portion 10 a substantially equal to that of the column 1, and the flat portions 10 b and 10 b higher than the upper end of the concave portion 10 a are connected to the soundproof panel 3. (The invention according to claim 5). The configuration of the connection bracket 10 will be described more specifically. The connection bracket 10 has a flat portion with respect to the height (about 61 cm in the illustrated example) of the concave shape portion 10a having substantially the same fault as the column 1. By forming the heights of 10b and 10b high (about 91.5 cm in the illustrated example), the upper end of the flat portion 10b is located near the upper part of the upper soundproof panel 3a (the invention according to claim 4). The structure is such that the soundproof panel 3 having a height of about 100 cm above the ground higher than the support 1 can be supported safely and reliably. The concave-shaped portion 10a of the connection bracket 10 is formed in a U-shape surrounding the outer periphery of the column 1 (the invention according to claim 7), but may be in the form of surrounding the outer periphery of the column 1. The shape is not limited to a U-shape.
[0026]
Next, the joining means between the soundproof panel 3 and the connection bracket 10 will be described.
[0027]
On both sides of the soundproof panels 3a, 3a constituting the soundproof panel 3, ribs 9 each having a substantially U-shape (groove-shaped steel shape) in plan view are screwed with their flanges (groove openings) 9a facing the column 1. Have been. Bolt holes 9b necessary for connection with the flat portions 10b of the connection brackets 10 are provided in a well-balanced manner as long holes in the horizontal direction at least in the vertical direction of the flange 9a on the vehicle traffic side of the rib 9 (illustrated example in the figure). In this embodiment, two flanges 9a are provided at the upper and lower portions of each flange 9a, and a through hole 9c for coupling the end of the scattering prevention wire 8 is provided at the upper end of the flange 9a. The scattering prevention wire 8 is provided to prevent the soundproof panel 3a damaged at the time of vehicle collision from scattering in order to prevent a secondary disaster, and is installed so as to penetrate an upper portion of the soundproof panel 3a in the longitudinal direction. ing.
[0028]
As shown in FIG. 5, the connection bracket 10 is provided with a bolt hole 10c for passing the through bolt 4 substantially at the upper center of the concave portion 10a. The necessary number of bolt holes 10d (four in the illustrated example) for connection to the soundproof panel 3 (3a, 3a) and the number of through holes 10e (two in the illustrated example) required for coupling the ends of the scattering prevention wire 8 are provided. ) Are provided at positions corresponding to the bolt holes 9b and the through holes 9c provided in the flange 9a of the rib 9 of the soundproof panel 3, respectively.
[0029]
Thus, the connection bracket 10 has the concave-shaped portion 10a attached to the opposite side of the position of the band-shaped beam member 2 (vehicle protection member), and the connection bracket 10 is attached to the connection bracket 10 by the through bolts 4 that lock the band-shaped beam member 2. It is supported by the support 1. The flange 9a of the rib 9 of the soundproof panel 3 is superimposed on the flat portion 10b of the connection bracket 10 supported by the column 1, and the bolt 17 and the nut 18 are made using the matching bolt holes 10d and 9b. The connection bracket 10 and the soundproof panel 3 are joined as shown in FIG. In addition, as shown in FIGS. 3 and 6, the band 11 sandwiching the column 1 has the lowermost bolt holes 10d of the matching bolt holes 10d... And 9d. 9d, the bolt 9 and the nut 18 are used to fix the bolt 9 and the nut 9 to support the column 1 via the flange 9a of the rib 9 (the invention according to claim 6).
[0030]
The scatter prevention wire 8 of the soundproof panel 3 (and 3a) has its end portion passed through the corresponding through holes 10e... 9c, and the flat portion 10b of the connection bracket 10 by means of screwing a nut from the inside to stop. Is bound to
[0031]
Further, as for the support 1 'at the end position of the soundproof fence structure, a connection bracket 10' (see FIGS. 7A and 7B) in which the connection bracket 10 is almost halved is used.
[0032]
The connecting bracket 10 'has a concave portion 10a' (about 61 cm in height) attached to the outer periphery of the end column 1 'and a flat portion 10b (outwardly formed on one edge of the concave portion 10a'). The height is about 91.5 cm), and the flat portion 10b is formed higher than the upper end of the concave portion 10a '. The portion of the flat portion 10b higher than the upper end of the concave portion 10a' is soundproof. It has a height necessary to support the panel 3 and is supported on the column 1 'as shown in FIGS. 8 and 9 in substantially the same manner as the joining means for the column 1 at the intermediate portion described above. To join the soundproof panel 3 (the above is the invention according to claim 2).
[0033]
Incidentally, FIG. 8 shows an upper joint state of the pillar 1 'at the end of the soundproof fence structure, and FIG. 9 shows a lower joint state of the pillar 1' at the end of the soundproof fence structure. Is shown. Reference numeral 11 'in FIG. 9 denotes a band member, which is formed in a ring shape having a size surrounding the support 1'.
[0034]
As described above, regarding the connection-proof brackets 10 and 10 ′ supported by the columns 1 and 1 ′ and the soundproof panel 3 attached to the connection brackets 10 and 10 ′, which constitute the above-described soundproof fence structure, The heights of the concave portions 10a, 10a 'of the brackets 10, 10' are each about 61 cm, and the heights of the upper and lower two-stage soundproof panels 3a, 3a constituting the soundproof panel 3 are each about 50cm. Therefore, the upper ends of the concave-shaped portions 10a, 10a 'are embodied at a height reaching a portion (about 11 cm) slightly above the boundary between the upper and lower two-stage soundproof panels 3a, 3a.
[0035]
Therefore, according to the soundproof type fence structure having the above structure, the lower soundproof panel 3a of the lower soundproof panel 3 can be stably installed, and the upper soundproof panel 3a can also be installed 11 cm above the lower soundproof panel 3a. The protruding concave portions 10a and 10a 'of the connecting brackets 10 and 10' have a rib effect, and the flat portions 10b and 10b of the connecting brackets 10 and 10 'extend to near the upper part of the upper panel 3a. Therefore, a safe and reliable soundproof fence structure can be constructed.
[0036]
[Effects of the present invention]
According to the soundproof fence structure according to the first to seventh aspects of the present invention, the installation of the soundproof panel is performed by using a specially devised connection bracket having a simple and light structure, thereby providing a protective fence (post). It is possible to stably install soundproof panels with a ground height of about 100 cm, which is considerably higher than that, so it is not only excellent in workability and economical efficiency, but also soundproofing effect, landscape, and gaze guidance functionality Thus, an ideal soundproof fence structure can be constructed from the viewpoint of.
According to the connection bracket used for the soundproof fence structure according to the invention of claim 8, a soundproof panel having a height of about 100 cm above the ground, which is considerably higher than the protective fence (post), can be installed safely and reliably, so that it is stable. A soundproof fence structure can be constructed.
[Brief description of the drawings]
1A is a plan view showing an embodiment of a soundproof fence structure according to the present invention, FIG. 1B is a front view thereof, and FIG. 1C is a side view thereof.
FIG. 2 is a plan view showing a structure in which an upper portion of a soundproof panel is attached to an intermediate column with a connection bracket.
FIG. 3 is a plan view showing a structure in which a lower portion of the soundproof panel is attached to a middle support by a connection bracket.
4A is a plan view showing the soundproof panel, FIG. 4B is a front view thereof, and FIG. 4C is a side view thereof.
FIG. 5 is a perspective view showing a connection bracket.
FIGS. 6A and 6B are perspective views showing a joint state between a connection bracket attached to a support and a soundproof panel in a stepwise manner.
FIGS. 7A and 7B are perspective views each showing a connection bracket to be attached to an end column.
FIG. 8 is a plan view showing a structure in which an upper portion of the soundproof panel is attached to a support at an end by a connection bracket.
FIG. 9 is a plan view showing a structure in which a lower portion of the soundproof panel is attached to a support at an end by a connection bracket.
[Explanation of symbols]
1, 1 'column 2 strip beam material (vehicle protection member)
Reference Signs List 3 soundproof panel 3a soundproof panel 4 through bolt 5 band-shaped beam material joint member 5a flange 8 scatter prevention wire 9 rib 9a flange 9b bolt hole 9c through hole 10, 10 'connection bracket 10a, 10a' concave surface portion 10b flat Part 10c Bolt hole 10d Bolt hole 10e Through hole 11, 11 'Band 12 Joint for band-shaped beam material 15, 17 Bolt 16, 18 Nut

Claims

In a soundproof fence structure comprising a soundproof panel attached to a protective fence,
The protective fence has a structure in which a vehicle protection member is attached to a vehicle-passing side of a column standing along a road, and the soundproof panel has a length substantially equal to an inner dimension between the column and the column. The soundproof panel is attached to a support fence post via a connection bracket to form a soundproof fence structure;
The soundproof panel is set to protrude higher than the top of the protective fence,
The connection bracket includes a concave shape portion attached to the outer periphery of the column, and flat portions formed outward at both end edges of the concave shape portion, and the flat portion is formed higher than an upper end of the concave shape portion. And a portion of the flat portion higher than an upper end of the concave portion has a height necessary for supporting the soundproof panel.

In a soundproof fence structure comprising a soundproof panel attached to a protective fence,
The protective fence has a structure in which a vehicle protection member is attached to a vehicle-passing side of a column standing along a road, and the soundproof panel has a length substantially equal to an inner dimension between the column and the column. The soundproof panel is attached to a support fence post via a connection bracket to form a soundproof fence structure;
The soundproof panel is set to protrude higher than the top of the protective fence,
The connecting bracket used for the support of the intermediate portion includes a concave portion attached to the outer periphery of the intermediate portion support, and flat portions formed outward at both end edges of the concave portion, and the flat portion is a concave portion. Is formed higher than the upper end of the flat portion, the portion higher than the upper end of the concave portion in the flat portion has a height required to support the soundproof panel,
The connection bracket used for the end post includes a concave portion attached to the outer periphery of the end post, and a flat portion formed outward on one edge of the concave portion, and the flat portion is a concave portion. And a portion higher than the upper end of the concave portion in the flat portion has a height necessary to support the soundproof panel.

3. The soundproof fence structure according to claim 1, wherein the height of the portion of the soundproof panel protruding from the top of the protective fence is about 20% of the total height of the soundproof panel. 4.

4. The soundproof panel according to any one of claims 1 to 3, wherein the soundproof panel is stacked in two upper and lower stages, and an upper end of the flat portion of the connection bracket is located near an upper portion of the upper soundproof panel. The described soundproof fence structure.

The concave portion of the connection bracket is substantially equal to the support, and the flat portion higher than the upper end of the concave portion is lower than the height of the soundproof panel. The soundproof fence structure according to any one of the above.

In the column, a concave-shaped portion of the connection bracket is attached to the opposite side of the position of the vehicle protective member, and is supported by the column by a bolt that locks the vehicle protective member, and a lower portion of the concave-shaped portion is a column. The soundproof fence structure according to any one of claims 1 to 5, wherein the soundproof fence structure is supported by a band sandwiching the fence.

The soundproof type according to any one of claims 1 to 6, wherein the concave-shaped portion of the connecting bracket used for the intermediate column is curved in a U-shape surrounding the outer periphery of the column. Fence structure.

A connection bracket used for the soundproof fence structure according to claim 1,
A concave portion to be attached to the outer periphery of the intermediate column, and a flat portion outwardly formed at both end edges of the concave portion, the flat portion is formed higher than the upper end of the concave portion, A connection bracket, wherein a portion of the flat portion higher than an upper end of the concave portion has a height necessary for supporting the soundproof panel.