JP4057346B2 - Guard fence and construction method of guard fence - Google Patents

Guard fence and construction method of guard fence Download PDF

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JP4057346B2
JP4057346B2 JP2002163138A JP2002163138A JP4057346B2 JP 4057346 B2 JP4057346 B2 JP 4057346B2 JP 2002163138 A JP2002163138 A JP 2002163138A JP 2002163138 A JP2002163138 A JP 2002163138A JP 4057346 B2 JP4057346 B2 JP 4057346B2
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cover
column
support
connecting portion
protective fence
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JP2004011182A (en
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徹 笹岡
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Misawa Homes Co Ltd
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Misawa Homes Co Ltd
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Description

【０００１】
【発明の属する技術分野】
本発明は、防護柵及び防護柵の構築方法に関する。
【０００２】
【背景の技術】
従来、道路の傾斜地点やカーブ地点に設置される防護柵として、実公平４−２８９０３号公報に示すように、支柱に二つのブラケットを介してビームを上下、左右に角度変更自在に連結してなる防護柵が提案されている。これらのブラケットは、図５に示すように、第１ブラケット３００と第２ブラケット４００とが水平軸５００を介して連結されている。そして、第１ブラケット３００は支柱１００の表面形状に対応する支柱連結部３１０を有し、この支柱連結部３１０が支柱１００表面に当接した状態で支柱１００に連結され、第１ブラケット３００は、支柱連結部３１０に形成された長穴３３０の長さだけ水平方向に移動可能となっている。一方、第２ブラケット４００は、水平軸５００を中心として支柱１００の長手方向に回動可能となっている。よって、円弧状部４１０とビーム２００の内側面とを連結することにより、ビーム２００を上下、左右に動かすことができる。
【０００３】
【発明が解決しようとする課題】
しかしながら、上記従来技術においては、ビーム２００を上下、左右に移動させるため、第１ブラケット３００と第２ブラケット４００の二つの部品が少なくとも必要となり、作業効率化、及び製造コスト低減化を図るには限界があった。
【０００４】
そこで、本発明の課題は、部品点数を減らすことにより、更なる作業の効率化、製造コスト低減化を図ることができる防護柵及び防護柵の構築方法を提供することである。
【０００５】
【課題を解決するための手段】
上記課題を解決するため、請求項１記載の発明は、例えば、図１〜図４に示すように、所定間隔をおいて地面Ｇに立設される複数の支柱１と、この支柱１間に架け渡されるビーム２と、前記支柱１と前記ビーム２とを連結する連結部材３と、を備えた防護柵１０であって、前記連結部材３は、前記支柱１の外側面に連結され、前記支柱１の軸線を中心に回動可能な支柱連結部３１と、前記ビーム２を前記支柱１の軸線に対して直交する軸線を中心に所定の角度変更自在に連結されるビーム連結部３２と、を有し、前記ビーム連結部３２に連結される前記ビーム２の両端部が露出するように前記ビーム２の外側面を覆うビームカバー２２と、前記支柱１の外側面を覆う支柱カバー１２と、前記ビーム連結部３２と前記ビームカバー２２の一端部とを覆い、前記支柱カバー１２の外側面から離間した位置で前記ビームカバー２２の一端部と連結される連結部材カバー４と、を備えることを特徴とする。
【０００６】
請求項１記載の発明によれば、一つの連結部材３が、支柱１の軸線を中心に回動可能な支柱連結部３１と、ビーム２を支柱１の軸線に対して直交する軸線を中心に所定の角度変更自在に連結するビーム連結部３２とを備えているので、支柱連結部３１の役割を担う部品とビーム連結部３２の役割を担う部品と別個に部品を分ける必要がなくなることとなって、部品点数を減らすことができ、作業の効率化、製造コスト低減化を図ることができる。
支柱１の外側面を支柱カバー１２で被覆することにより、支柱１が外部にさらされることがなくなって、支柱１の外部からの衝撃に対する耐久性を向上させることができる。
ビーム２の外側面をビームカバー２２で被覆することにより、ビーム２が外部にさらされることがなくなって、ビーム２の外部からの衝撃に対する耐久性を向上させることができる。
ビーム２の両端部はビームカバー２２に覆われることなく露出しているので、ビーム連結部３２への連結作業を容易に行うことができる。
ビーム連結部３２とビームカバー２２の一端部とを覆い、ビームカバー２２の一端部と連結される連結部材カバー３２を備えるので、連結部材３とビーム２との連結部分が覆われることとなって、ボルト等が外部に露出することがなくなり、見映えを向上させることができる。
【０００７】
請求項２記載の発明は、例えば、図２〜図４に示すように、前記ビーム連結部３２は、前記ビーム２の端部を外側から挟み込んで支持することを特徴とする。
【０００８】
請求項２記載の発明によれば、ビーム連結部３２がビーム２の端部を外側から挟み込むことにより、ビーム２の端部はビーム連結部３２に覆われることとなって、ビーム２の端部の外部からの衝撃に対する耐久性を向上させることができる。
【０００９】
請求項３記載の発明は、例えば、図２〜図４に示すように、前記ビーム連結部３２の上方が開口されていることを特徴とする。
【００１０】
請求項３記載の発明によれば、ビーム連結部３２の上方が開口されていることにより、ビーム２を支柱１の軸線に対して直交する軸線を中心に上方へ所定の角度変更をするに際し、ビーム２がビーム連結部３２に接触してその動きが阻害されないので、ビーム２の角度変更可能な範囲を広げることができる。
【００１１】
請求項４記載の発明は、例えば、図１，図３，図４に示すように、請求項１〜３のいずれか一項に記載の防護柵１において、前記ビームカバー２２は内側面に複数の突起２２ｔを有することを特徴とする。
【００１２】
請求項４記載の発明によれば、ビーム２が熱により膨張したり、収縮したりすることがあっても、複数の突起２２ｔにより、ビーム２の膨張収縮による変化を受け止めることができるので、環境の変化に対応可能な防護柵１０とすることができる。また、突起２２ｔは、ビームカバー２２に加わった衝撃を抑えることができるので、耐久性に優れた防護柵１０とすることができる。
【００１３】
請求項５記載の発明は、例えば、図１，図３，図４に示すように、請求項１〜４のいずれか一項に記載の防護柵１において、前記支柱カバー１２は内側面に複数の突起１２ｔを有することを特徴とする。
【００１４】
請求項５記載の発明によれば、支柱１が熱により膨張したり、収縮したりすることがあっても、複数の突起１２ｔにより、支柱１の膨張収縮による変化を受け止めることができるので、環境の変化に対応可能な防護柵１０とすることができる。また、突起１２ｔは、支柱カバー１２に加わった衝撃を抑えることができるので、耐久性に優れた防護柵１０とすることができる。
【００１５】
請求項６記載の発明は、例えば、図１，図３，図４に示すように、請求項１〜５のいずれか一項に記載の防護柵１において、前記ビームカバー２２は、木粉と樹脂とを混合し、この混合材料を溶融させて押出成形したものからなることを特徴とする。
【００１６】
請求項６記載の発明によれば、ビームカバー２２は木粉と樹脂とを混合し、この混合材料を溶融させて押出成形したものからなるので、ビーム２の外部からの衝撃に対する耐久性を向上できる。また、木粉が含まれていることから、ビームカバー２２は見映えが木質調となり、自然に調和した防護柵１０とすることができる。
【００１７】
請求項７記載の発明は、例えば、図１，図３，図４に示すように、請求項１〜６のいずれか一項に記載の防護柵１において、前記支柱カバー１２は、木粉と樹脂とを混合し、この混合材料を溶融させて押出成形したものからなることを特徴とする。
【００１８】
請求項７記載の発明によれば、支柱カバー１２は、木粉と樹脂とを混合し、この混合材料を溶融させて押出成形したものからなるので、支柱１の外部からの衝撃に対する耐久性を向上させることができる。また、木粉が含まれていることから、支柱カバー１２は見映えが木質調となり、自然に調和した防護柵１０とすることができる。
【００２１】
請求項８記載の発明は、例えば、図１〜図４に示すように、請求項１記載の防護柵１０の構築方法であって、内側面に複数の突起１２ｔを有する支柱カバー１２を前記支柱１に被覆し、内側面に複数の突起２２ｔを有し、前記ビーム２の両端部を露出させるビームカバー２２を前記ビーム２に被覆し、前記支柱１に前記支柱連結部３１を連結し、前記ビーム連結部３２に、前記ビーム連結部３２と前記ビームカバー２２の一端部とを覆う連結部材カバー４を設けた前記ビーム２を連結し、前記連結部材カバー４を前記ビーム連結部３２を覆い隠す位置まで移動させ、前記ビームカバー２２と前記連結部材カバー４とを連結することを特徴とする。
【００２２】
請求項８記載の発明によれば、ビーム連結部３２に、ビーム連結部３２とビームカバー２２の一端部を覆う連結部材カバー４を設けたビーム２を連結し、連結部材カバー４をビーム連結部３２を覆い隠す位置まで移動させ、ビームカバー２２と連結部材カバー４とを連結するので、連結時に連結部材カバー４に連結作業を阻害されることがなく、連結作業を容易に行うことができる。また、連結後は、ビーム連結部３２を覆い隠すことで、連結部分のボルト等を外部に露出することがなくなり、見映えを向上させることができる。
【００２３】
【発明の実施の形態】
以下、図面を参照して本発明の実施の形態である防護柵及び防護柵の構築方法について詳細に説明する。
図１〜図４に示すように、防護柵１０は、例えば、車道と歩道との境界に立設されており、歩行者を自動車から守るために設けられている。この防護柵１０は、地面Ｇに所定の間隔をおいて立設される支柱１、支柱１間に架け渡されるビーム２、支柱１とビーム２とを連結する連結部材３等を備えている。
【００２４】
支柱１は、地面Ｇに対してほぼ垂直に立設されており、例えば、円筒状の鋼管から形成されている。支柱１の外側面には、外部衝撃等から支柱１を保護するための支柱カバー１２が取り付けられている。支柱カバー１２は、略円筒状で、木粉と樹脂とを混合して押出成形したものからなる。この支柱カバー１２の内側面には、複数の突起１２ｔが形成されている。
また、支柱１及び支柱カバー１２には、貫通する穴部１ｈ、穴部１２ｈとがそれぞれ二ヵ所に形成されており、各穴部１ｈ，１２ｈは支柱１の軸線に直交する軸線と同一軸線上に形成されている。
また、穴部１ｈ，１２ｈには、連結部材３を支柱１にボルトで連結するときの雌ネジ１５ｈが形成されたインナー管１５が挿通されている。また、インナー管１５は、穴部１ｈ，１２ｈに挿通したときに各端部が支柱カバー１２の外側面とほぼ面一となる長さとされており、例えば、鋼管から形成されている。
【００２５】
ビーム２は、地面Ｇに対してほぼ平行となるように両端部が支柱１に連結部材３を介して連結されており、例えば、円筒状の鋼管から形成されている。ビーム２の外側面には、ビームカバー２２が取り付けられている。ビームカバー２２は、略円筒状で、木粉と樹脂とを混合して押出成形したものからなる。このビームカバー２２の内側面には、複数の突起２２ｔが形成されている。このビームカバー２２の長さは、ビーム２よりも少し短くされ、ビーム２に取り付けたときにビーム２の両端部が外部に露出するようになっている。また、ビームカバー２２の両端部２２ａ，２２ｂの外側面には、複数のビス穴２２ｈが形成されており、後述する連結部材カバー４との連結時に用いられる。
また、ビーム２の両端部には、ビーム２を貫通する穴部２ｈ、２ｈが、二ヵ所に形成されている。この二つの穴部２ｈ、２ｈはビーム２の軸線に直交する軸線と同一軸線上に形成され、この穴部２ｈを介してビーム２は、連結部材３に連結されている。
【００２６】
連結部材３は、図２に示すように、支柱カバー１２の外側面に連結されており、例えば、側方の一部を切り欠いて上方を開口した略球体状の鋼製の金物で形成されている。この連結部材３は、支柱１の軸線を中心に回動可能な支柱連結部３１と、ビーム２を支柱１の軸線に対して直交する軸線を中心に所定の角度変更自在に連結するビーム連結部３２とを備えている。
【００２７】
支柱連結部３１は、支柱カバー１２の外側面に第一連結ボルトＢ１を介して取り付けられており、支柱１に当接する当接部３１ａの当接面が支柱１の外側面に合わせて湾曲した形状にされている。支柱連結部３１の当接部３１ａには、支柱１の周方向に沿って長尺な長穴部３１ｈが形成されている。そして、この長穴部３１ｈに第一連結ボルトＢ１が挿通されてこの第一連結ボルトＢ１が上述のインナー管１５の雌ネジ１５ｈに螺合されることにより、支柱連結部３１が支柱１に連結されている。
【００２８】
ビーム連結部３２は、内部空間を有する略球体形状のものからなり、支柱連結部３１と一体に形成されている。また、支柱連結部３１と反対側の部分を切り欠き、上方にかけて開口部Ｃが設けられていて、この開口部Ｃの幅は、少なくともビーム２の外径よりも大きく形成されている。また、ビーム連結部３２には、支柱１の軸線及びインナー管１５の軸線に直交する軸線を有し、ビーム２の端部の穴部２ｈに挿通される第二連結ボルトＢ２が設けられている。第二連結ボルトＢ２は、開口部Ｃに架け渡すように設けられており、両端部がビーム連結部３２内に納まるような長さのものが用いられている。
従って、ビーム連結部３２の内部にビーム２の端部を挿入して、ビーム２端部の穴部２ｈに第二連結ボルトＢ２を挿通することにより、ビーム連結部３２がビーム２の端部を外側から挟み込んで、第二連結ボルトＢ２の軸線を中心に支柱の長手方向に回動自在に支持されるようになっている。
【００２９】
また、ビーム連結部３２は、連結部材カバー４によって覆われている。
連結部材カバー４は、ビーム連結部３２とビームカバー２２の一端部２２ａとを覆い、ビームカバー２２の一端部２２ａと連結されている。連結部材カバー４は、円筒状に形成されており、アルミニウム等の金属材料から形成されている。この連結部材カバー４の一端部４ａの外側面には複数のビス穴４ｈが形成されており、上記ビス穴２２ｈと同径に形成されている。ビームカバー２２と連結部材カバー４は、互いのビス穴２２ｈ，４ｈにビスＳを挿通することによって連結されている。なお、連結部材カバー４は、アルミニウムに限らず、支柱カバー１２やビームカバー２２のように木粉と樹脂とを混合して押出成形したものから形成してもよい。
【００３０】
次に、防護柵１０の構築方法について説明する。
防護柵１０を構築するには、支柱カバー１２を取り付けた支柱１を所定の間隔をおいて地面Ｇに立設する。このとき、支柱１を立設する所定の間隔は、ビーム２が支柱１間に連結可能な間隔としておく。また、支柱１には、事前にインナー管１５を内蔵しておく。
次に、インナー管１５に支柱連結部３１の長穴部３１ｈを介して第一連結ボルトＢ１を長穴部にねじ込み、連結部材３を支柱カバー１２の外側面に取り付ける。この際、第一連結ボルトＢ１を長穴部３１ｈ内で移動させることにより、連結部材３を支柱１の軸線を中心に回動させて固定位置を調整した後、固定する。
次に、ビームカバー２２の両端部２２ａ，２２ｂに連結部材カバー４を嵌め込み、ビームカバー２２の外側面上を連結部材カバー４が移動可能とした状態で、ビーム２の両端部をビーム連結部３２の開口部Ｃから内部に挿入し、第二連結ボルトＢ２を用いてビーム２と連結部材３とを連結する。この際、ビーム２を支柱１の軸線に対して直交する軸線を中心に所定の角度変更調整した後、連結する。次に、連結部材カバー４を、ビーム連結部３２を覆い隠す位置まで移動させ、ビス穴４ｈとビームカバー２２のビス穴２２ｈの位置を合わせた状態でビスＳを用いてビーム２と連結部材カバー４とを連結する。
以上の方法によって、防護柵１０は構築される。
【００３１】
本実施の形態によれば、一つの連結部材３が支柱連結部３１とビーム連結部３２とを備えているので、支柱連結部３１の役割を担う部品とビーム連結部３２の役割を担う部品と別個に部品を分ける必要がなくなることとなって、部品点数を減らすことができ、作業の効率化、製造コスト低減化を図ることができる。
また、ビーム連結部３２がビーム２の端部を外側から挟み込むことにより、ビーム２の端部はビーム連結部３２に覆われることとなって、ビーム２の端部の外部からの衝撃に対する耐久性を向上させることができる。
また、ビーム連結部３２の上方が開口されていることにより、ビーム２を支柱１の軸線に対して直交する軸線を中心に上方へ所定の角度変更をするに際し、ビーム２がビーム連結部３２に接触してその動きが阻害されないので、ビーム２の角度変更可能な範囲を広げることができる。
【００３２】
また、支柱１の外側面を支柱カバー１２で被覆し、ビーム２の外側面をビームカバー２２で被覆することにより、支柱１及びビーム２が外部にさらされることがなくなって、支柱１及びビーム２の外部からの衝撃に対する耐久性を向上させることができる。また、この支柱カバー１２及びビームカバー２２は木粉と樹脂とを混合し、この混合材料を溶融させて押出成形したものからなるので、支柱１及びビーム２の外部からの衝撃に対する耐久性を向上できる。また、木粉が含まれていることから、これらのカバーは見映えが木質調となり、自然に調和した防護柵１０とすることができる。
【００３３】
また、支柱１やビーム２が膨張したり、収縮したりすることがあっても、複数の突起１２ｔ，２２ｔが膨張収縮による支柱１やビーム２の変化に伴う力を受け止めるので、環境の変化に対応可能な防護柵１０とすることができる。また、突起１２ｔ，２２ｔは、支柱カバー１２やビームカバー２２に加わった衝撃を抑えることができるので、耐久性に優れた防護柵１０とすることができる。
また、ビーム２の両端部はビームカバー２２に覆われることなく露出しているので、ビーム連結部３２への連結作業を容易に行うことができる。
さらに、防護柵１０は、連結部材カバー４を備えるので、連結部分の第一連結ボルトＢ１や第二連結ボルトＢ２を外部に露出することがなくなり、見映えを向上させることができる。
【００３４】
なお、本発明は、上記実施の形態に限定されるものではない。例えば、支柱１間に連結されるビーム２の数は任意であり、支柱１の高さに応じて適宜変更可能である。また、支柱１やビーム２も円筒形状に限らず、四角柱形状や楕円筒形状としてもよい。また、連結部材３は、ビーム２を上述の二方向に動かすことができる機構を有していれば、その形状は問わない。また、突起１２ｔ，２２ｔの大きさは任意であり、支柱１やビーム２の外側面に当接していてもよいし、離れていてもよい。その他、本発明は、発明の要旨を逸脱しない範囲で設計変更、改良、組み合わせ等がなされた構造を包含するものである。
【００３５】
【発明の効果】
請求項１記載の発明によれば、一つの連結部材が、支柱連結部と、ビーム連結部とを備えているので、部品点数を減らすことができ、作業の効率化、製造コスト低減化を図ることができる。
支柱の外側面を支柱カバーで被覆することにより、支柱の外部からの衝撃に対する耐久性を向上させることができる。
ビームの外側面をビームカバーで被覆することにより、ビームが外部にさらされることがなくなって、ビームの外部からの衝撃に対する耐久性を向上させることができる。
ビームの両端部はビームカバーに覆われることなく露出しているので、ビーム連結部への連結作業を容易に行うことができる。
ビーム連結部とビームカバーの一端部とを覆い、ビームカバーの一端部と連結される連結部材カバーを備えるので、連結部材とビームとの連結部分が覆われることとなって、ボルト等が外部に露出することがなくなり、見映えを向上させることができる。
【００３６】
請求項２記載の発明によれば、ビーム連結部がビームの端部を外側から挟み込むことにより、ビームの端部の外部からの衝撃に対する耐久性を向上させることができる。
【００３７】
請求項３記載の発明によれば、ビーム連結部の上方が開口されていることにより、ビームがビーム連結部に接触してその動きが阻害されないので、ビームの角度変更可能な範囲を広げることができる。
【００３８】
請求項４記載の発明によれば、ビームが熱により膨張したり、収縮したりすることがあっても、複数の突起により、ビームの膨張収縮による変化を受け止めることができるので、環境の変化に対応可能な防護柵とすることができる。また、突起は、ビームカバーに加わった衝撃を抑えることができるので、耐久性に優れた防護柵とすることができる。
【００３９】
請求項５記載の発明によれば、支柱が熱により膨張したり、収縮したりすることがあっても、複数の突起により、支柱の膨張収縮による変化を受け止めることができるので、環境の変化に対応可能な防護柵とすることができる。さらに、突起は、支柱カバーに加わった衝撃を抑えることができるので、耐久性に優れた防護柵とすることができる。
【００４０】
請求項６記載の発明によれば、ビームカバーは木粉と樹脂とを混合し、この混合材料を溶融させて押出成形したものからなるので、ビームの外部からの衝撃に対する耐久性を向上できる。また、木粉が含まれていることから、ビームカバーは見映えが木質調となり、自然に調和した防護柵とすることができる。
【００４１】
請求項７記載の発明によれば、支柱カバーは、木粉と樹脂とを混合し、この混合材料を溶融させて押出成形したものからなるので、支柱の外部からの衝撃に対する耐久性を向上できる。また、木粉が含まれていることから、支柱カバーは見映えが木質調となり、自然に調和した防護柵とすることができる。
【００４３】
請求項８記載の発明によれば、連結部材カバーが外側面にはめ込まれたビームカバーで被覆されたビームの一端部を連結部材に連結し、連結部材カバーをビーム連結部を覆い隠す位置まで移動してビームカバーと連結部材カバーとを連結するので、連結時に連結部材カバーに連結作業を阻害されることがなく、連結作業を容易に行うことができる。また、連結後は、ビーム連結部を覆い隠すことで、連結部分のボルト等を外部に露出することがなくなり、見映えを向上させることができる。
【図面の簡単な説明】
【図１】本発明の実施の形態における防護柵の正面図である。
【図２】上記実施の形態における連結部材の斜視図である。
【図３】上記実施の形態における防護柵の一部を透視した縦断面図である。
【図４】上記実施の形態における防護柵の一部を透視した縦断面図、Ａ−Ａ断面図及びＢ−Ｂ断面図である。
【図５】従来技術における防護柵の連結部材の斜視図である。
【符号の説明】
１ 支柱
２ ビーム
３ 連結部材
４ 連結部材カバー
１２ 支柱カバー
１２ｔ 突起
２２ ビームカバー
２２ｔ 突起
３１ 支柱連結部
３２ ビーム連結部
Ｇ 地面[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a protective fence and a construction method of the protective fence.
[0002]
[Background technology]
Conventionally, as protective fences installed at road slope points and curve points, as shown in Japanese Utility Model Publication No. 4-28903, the beam is connected to the column via two brackets so that the angle can be changed vertically and horizontally. A protective fence has been proposed. In these brackets, as shown in FIG. 5, a first bracket 300 and a second bracket 400 are connected via a horizontal shaft 500. And the 1st bracket 300 has the support | pillar connection part 310 corresponding to the surface shape of the support | pillar 100, this support | pillar connection part 310 is connected with the support | pillar 100 in the state contact | abutted on the support | pillar 100 surface, It can move in the horizontal direction by the length of the long hole 330 formed in the column connecting part 310. On the other hand, the second bracket 400 is rotatable in the longitudinal direction of the support column 100 about the horizontal axis 500. Therefore, by connecting the arcuate portion 410 and the inner surface of the beam 200, the beam 200 can be moved up and down and left and right.
[0003]
[Problems to be solved by the invention]
However, in the above prior art, since the beam 200 is moved up and down, left and right, at least two parts of the first bracket 300 and the second bracket 400 are necessary, and in order to improve work efficiency and reduce manufacturing costs. There was a limit.
[0004]
Therefore, an object of the present invention is to provide a protective fence and a method for constructing the protective fence, which can achieve further work efficiency and manufacturing cost reduction by reducing the number of parts.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problem, the invention according to claim 1 is, for example, as shown in FIGS. 1 to 4, and a plurality of support posts 1 standing on the ground G with a predetermined interval, and between the support posts 1. A guard fence 10 including a beam 2 to be bridged and a connecting member 3 that connects the support column 1 and the beam 2, the connecting member 3 being connected to an outer surface of the support column 1, A column coupling part 31 that can rotate around the axis of the column 1; a beam coupling unit 32 that couples the beam 2 around an axis perpendicular to the axis of the column 1 so as to change a predetermined angle; A beam cover 22 that covers the outer surface of the beam 2 so that both ends of the beam 2 connected to the beam connecting portion 32 are exposed, and a column cover 12 that covers the outer surface of the column 1; One end of the beam connecting portion 32 and the beam cover 22 The cover, characterized in that it comprises a connecting member cover 4 which is connected to one end portion of the beam cover 22 at a position spaced apart from the outer surface of the strut cover 12.
[0006]
According to the first aspect of the present invention, one connecting member 3 has a column connecting part 31 that can rotate around the axis of the column 1 and an axis that is orthogonal to the axis of the column 1 around the beam 2. Since the beam connecting portion 32 is connected so as to freely change the predetermined angle, it is not necessary to separate the components that play the role of the column connecting portion 31 and the components that play the role of the beam connecting portion 32 separately. Thus, the number of parts can be reduced, and work efficiency and manufacturing cost can be reduced.
By covering the outer surface of the column 1 with the column cover 12, the column 1 is not exposed to the outside, and the durability against impact from the outside of the column 1 can be improved.
By covering the outer surface of the beam 2 with the beam cover 22, the beam 2 is not exposed to the outside, and durability against an impact from the outside of the beam 2 can be improved.
Since both end portions of the beam 2 are exposed without being covered by the beam cover 22, the connecting operation to the beam connecting portion 32 can be easily performed.
Since the connecting member cover 32 that covers the beam connecting portion 32 and one end of the beam cover 22 and is connected to one end of the beam cover 22 is provided, the connecting portion between the connecting member 3 and the beam 2 is covered. Bolts and the like are not exposed to the outside, and the appearance can be improved.
[0007]
The invention according to claim 2 is characterized in that, as shown in FIGS. 2 to 4, for example, the beam connecting portion 32 supports the end portion of the beam 2 by sandwiching it from the outside.
[0008]
According to the second aspect of the present invention, the end portion of the beam 2 is covered with the beam connecting portion 32 by the beam connecting portion 32 sandwiching the end portion of the beam 2 from the outside. It is possible to improve durability against impacts from the outside.
[0009]
The invention described in claim 3 is characterized in that, for example, as shown in FIGS. 2 to 4, an upper portion of the beam connecting portion 32 is opened.
[0010]
According to the third aspect of the present invention, when the upper portion of the beam connecting portion 32 is opened, when the beam 2 is changed to a predetermined angle upward about an axis perpendicular to the axis of the support column 1, Since the beam 2 contacts the beam connecting portion 32 and its movement is not hindered, the range in which the angle of the beam 2 can be changed can be expanded.
[0011]
For example, as shown in FIGS. 1, 3, and 4, the invention according to claim 4 is the protective fence 1 according to any one of claims 1 to 3, wherein a plurality of the beam covers 22 are provided on the inner surface. It is characterized by having a projection 22t.
[0012]
According to the fourth aspect of the present invention, even if the beam 2 expands or contracts due to heat, the plurality of protrusions 22t can receive a change caused by the expansion and contraction of the beam 2, so that the environment It can be set as the guard fence 10 which can respond to the change of. Moreover, since the protrusion 22t can suppress the impact applied to the beam cover 22, the protective fence 10 having excellent durability can be obtained.
[0013]
As for invention of Claim 5 , as shown in FIG.1, FIG.3, FIG.4, in the protection fence 1 as described in any one of Claims 1-4, the said support | pillar cover 12 has two or more in the inner surface. It is characterized by having a projection 12t.
[0014]
According to the fifth aspect of the present invention, even if the support column 1 expands or contracts due to heat, the plurality of protrusions 12t can receive changes due to the expansion and contraction of the support column 1, It can be set as the guard fence 10 which can respond to the change of. Moreover, since the protrusion 12t can suppress the impact applied to the support | pillar cover 12, it can be set as the protection fence 10 excellent in durability.
[0015]
The invention according to claim 6 is, for example, as shown in FIGS. 1, 3, and 4, in the protective fence 1 according to any one of claims 1 to 5, the beam cover 22 is made of wood flour. It is characterized in that it is made by mixing a resin and melting and mixing the mixed material.
[0016]
According to the sixth aspect of the present invention, the beam cover 22 is made of a mixture of wood powder and resin, melted and extruded from the mixed material, so that the durability against impact from the outside of the beam 2 is improved. it can. In addition, since the wood powder is included, the beam cover 22 has a wooden appearance and can be used as the protective fence 10 that is naturally harmonized.
[0017]
The invention according to claim 7 is, for example, as shown in FIGS. 1, 3, and 4, in the protective fence 1 according to any one of claims 1 to 6, the support cover 12 is made of wood powder. It is characterized in that it is made by mixing a resin and melting and mixing the mixed material.
[0018]
According to the seventh aspect of the invention, the support column cover 12 is made by mixing wood powder and resin, melting the mixed material, and extruding it. Therefore, the support column 12 has durability against impact from the outside of the support column 1. Can be improved. In addition, since the wood powder is included, the support cover 12 has a wooden appearance and can be used as the protective fence 10 that is naturally harmonized.
[0021]
The invention according to claim 8 is a construction method of the protective fence 10 according to claim 1, for example, as shown in FIGS. 1 to 4, wherein the support cover 12 having a plurality of protrusions 12 t is provided on the inner surface. 1, a plurality of projections 22 t on the inner surface, a beam cover 22 that exposes both ends of the beam 2 is covered with the beam 2, the column connection part 31 is connected to the column 1, The beam 2 provided with a connecting member cover 4 that covers the beam connecting portion 32 and one end of the beam cover 22 is connected to the beam connecting portion 32, and the connecting member cover 4 covers the beam connecting portion 32. The beam cover 22 and the connecting member cover 4 are connected to each other by moving to a position.
[0022]
According to the eighth aspect of the present invention, the beam connecting portion 32 is connected to the beam 2 provided with the connecting member cover 4 that covers one end of the beam connecting portion 32 and the beam cover 22, and the connecting member cover 4 is connected to the beam connecting portion. Since the beam cover 22 and the connecting member cover 4 are connected to each other so as to cover the cover 32, the connecting work is not hindered by the connecting member cover 4 at the time of connecting, and the connecting work can be easily performed. Further, after the connection, by covering the beam connection portion 32, the bolts and the like of the connection portion are not exposed to the outside, and the appearance can be improved.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a protection fence and a construction method of the protection fence according to an embodiment of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 to 4, the protective fence 10 is erected on the boundary between a roadway and a sidewalk, for example, and is provided to protect a pedestrian from an automobile. The protective fence 10 includes a column 1 erected on the ground G with a predetermined interval, a beam 2 bridged between the columns 1, a connecting member 3 that couples the column 1 and the beam 2, and the like.
[0024]
The support column 1 is erected substantially perpendicular to the ground G, and is formed of, for example, a cylindrical steel pipe. A column cover 12 for protecting the column 1 from an external impact or the like is attached to the outer surface of the column 1. The column cover 12 has a substantially cylindrical shape, and is formed by mixing and extruding wood powder and resin. A plurality of protrusions 12 t are formed on the inner surface of the support cover 12.
Further, the support column 1 and the support column cover 12 are respectively formed with two through holes 1h and 12h. The holes 1h and 12h are on the same axis as the axis orthogonal to the axis of the support 1. Is formed.
In addition, an inner tube 15 having a female screw 15h formed when the connecting member 3 is connected to the support column 1 with a bolt is inserted into the holes 1h and 12h. The inner pipe 15 has a length such that each end is substantially flush with the outer surface of the column cover 12 when inserted into the holes 1h and 12h, and is formed of, for example, a steel pipe.
[0025]
Both ends of the beam 2 are coupled to the support column 1 via a coupling member 3 so as to be substantially parallel to the ground G, and are formed of, for example, a cylindrical steel pipe. A beam cover 22 is attached to the outer surface of the beam 2. The beam cover 22 has a substantially cylindrical shape, and is formed by mixing and extruding wood powder and resin. A plurality of protrusions 22 t are formed on the inner surface of the beam cover 22. The length of the beam cover 22 is slightly shorter than that of the beam 2, and both end portions of the beam 2 are exposed to the outside when attached to the beam 2. A plurality of screw holes 22h are formed on the outer surfaces of both end portions 22a and 22b of the beam cover 22, and are used when connecting to the connecting member cover 4 described later.
Further, at both ends of the beam 2, holes 2h and 2h penetrating the beam 2 are formed at two locations. The two holes 2h and 2h are formed on the same axis as the axis orthogonal to the axis of the beam 2, and the beam 2 is connected to the connecting member 3 through the hole 2h.
[0026]
As shown in FIG. 2, the connecting member 3 is connected to the outer side surface of the column cover 12, and is formed of, for example, a substantially spherical steel hardware having a part cut out on the side and opened upward. ing. The connecting member 3 includes a column connecting portion 31 that can rotate around the axis of the column 1 and a beam connecting unit that connects the beam 2 around an axis orthogonal to the axis of the column 1 so as to change a predetermined angle. 32.
[0027]
The column connection part 31 is attached to the outer side surface of the column cover 12 via the first connection bolt B <b> 1, and the contact surface of the contact part 31 a that contacts the column 1 is curved in accordance with the outer surface of the column 1. It is in shape. In the contact portion 31 a of the support column connection portion 31, an elongated slot portion 31 h is formed along the circumferential direction of the support column 1. Then, the first connecting bolt B1 is inserted into the elongated hole portion 31h, and the first connecting bolt B1 is screwed into the female screw 15h of the inner tube 15 described above, so that the support connecting portion 31 is connected to the support 1. Has been.
[0028]
The beam connecting portion 32 is formed in a substantially spherical shape having an internal space, and is formed integrally with the column connecting portion 31. Further, a portion on the side opposite to the column connecting portion 31 is cut out, and an opening C is provided upward. The width of the opening C is at least larger than the outer diameter of the beam 2. The beam connecting portion 32 is provided with a second connecting bolt B2 that has an axis orthogonal to the axis of the support column 1 and the axis of the inner tube 15 and is inserted into the hole 2h at the end of the beam 2. . The second connection bolt B <b> 2 is provided so as to span the opening C, and has a length that allows both ends to be accommodated in the beam connection portion 32.
Therefore, by inserting the end of the beam 2 into the beam connecting portion 32 and inserting the second connecting bolt B2 into the hole 2h at the end of the beam 2, the beam connecting portion 32 causes the end of the beam 2 to move. It is sandwiched from the outside and is supported so as to be rotatable in the longitudinal direction of the column with the axis of the second connecting bolt B2 as the center.
[0029]
The beam connecting portion 32 is covered with the connecting member cover 4.
The connecting member cover 4 covers the beam connecting portion 32 and the one end portion 22 a of the beam cover 22, and is connected to the one end portion 22 a of the beam cover 22. The connecting member cover 4 is formed in a cylindrical shape, and is formed from a metal material such as aluminum. A plurality of screw holes 4h are formed on the outer surface of the one end portion 4a of the connecting member cover 4, and are formed to have the same diameter as the screw holes 22h. The beam cover 22 and the connecting member cover 4 are connected by inserting screws S into the screw holes 22h and 4h. The connecting member cover 4 is not limited to aluminum, and may be formed from a mixture of wood powder and resin, such as the column cover 12 and the beam cover 22, which is extruded.
[0030]
Next, a construction method of the protective fence 10 will be described.
In order to construct the protective fence 10, the pillars 1 to which the pillar cover 12 is attached are erected on the ground G with a predetermined interval. At this time, the predetermined interval at which the columns 1 are erected is set to an interval at which the beam 2 can be connected between the columns 1. Further, an inner pipe 15 is built in the support column 1 in advance.
Next, the first connecting bolt B <b> 1 is screwed into the elongated hole portion through the elongated hole portion 31 h of the supporting column connecting portion 31 and the connecting member 3 is attached to the outer surface of the supporting column cover 12. At this time, the first connecting bolt B1 is moved in the elongated hole portion 31h, so that the connecting member 3 is rotated about the axis of the support column 1 to adjust the fixing position and then fixed.
Next, the connecting member cover 4 is fitted into both end portions 22 a and 22 b of the beam cover 22, and the both end portions of the beam 2 are connected to the beam connecting portion 32 in a state where the connecting member cover 4 is movable on the outer surface of the beam cover 22. The beam 2 and the connecting member 3 are connected using the second connecting bolt B <b> 2. At this time, the beam 2 is connected after being adjusted by changing a predetermined angle around an axis orthogonal to the axis of the column 1. Next, the connecting member cover 4 is moved to a position covering the beam connecting portion 32, and the beam 2 and the connecting member cover are used by using the screws S in a state where the screw holes 4h and the screw holes 22h of the beam cover 22 are aligned. 4 is connected.
The protective fence 10 is constructed by the above method.
[0031]
According to the present embodiment, since one connecting member 3 includes the column connecting portion 31 and the beam connecting portion 32, the component that plays the role of the column connecting portion 31 and the component that plays the role of the beam connecting portion 32 It becomes unnecessary to separately divide parts, so that the number of parts can be reduced, and work efficiency and manufacturing cost can be reduced.
Further, the end of the beam 2 is sandwiched from the outside by the beam connecting portion 32, so that the end of the beam 2 is covered by the beam connecting portion 32, and durability against an impact from the outside of the end of the beam 2. Can be improved.
Further, since the upper portion of the beam connecting portion 32 is opened, the beam 2 is moved to the beam connecting portion 32 when changing the angle of the beam 2 upward about the axis orthogonal to the axis of the column 1. Since the movement is not inhibited by contact, the range in which the angle of the beam 2 can be changed can be expanded.
[0032]
Further, by covering the outer surface of the support column 1 with the support column cover 12 and the outer surface of the beam 2 with the beam cover 22, the support column 1 and the beam 2 are not exposed to the outside. It is possible to improve durability against impacts from the outside. Further, since the column cover 12 and the beam cover 22 are made by mixing wood powder and resin, melting the mixed material, and extrusion-molding, the durability against the impact from the outside of the column 1 and the beam 2 is improved. it can. Moreover, since wood powder is contained, these covers have a woody appearance and can be used as a protective fence 10 that is naturally harmonized.
[0033]
Even if the support column 1 and the beam 2 are expanded or contracted, the plurality of protrusions 12t and 22t receive the force accompanying the change of the support column 1 and the beam 2 due to expansion and contraction. It can be set as the protective fence 10 which can respond. Moreover, since the protrusions 12t and 22t can suppress the impact applied to the support column cover 12 and the beam cover 22, the protective fence 10 having excellent durability can be obtained.
In addition, since both ends of the beam 2 are exposed without being covered by the beam cover 22, the connection operation to the beam connection portion 32 can be easily performed.
Furthermore, since the protective fence 10 includes the connecting member cover 4, the first connecting bolt B1 and the second connecting bolt B2 of the connecting portion are not exposed to the outside, and the appearance can be improved.
[0034]
The present invention is not limited to the above embodiment. For example, the number of beams 2 connected between the columns 1 is arbitrary, and can be appropriately changed according to the height of the columns 1. Further, the support column 1 and the beam 2 are not limited to a cylindrical shape, and may be a quadrangular prism shape or an elliptical cylinder shape. The connecting member 3 may have any shape as long as it has a mechanism that can move the beam 2 in the above-described two directions. Moreover, the magnitude | size of protrusion 12t, 22t is arbitrary, You may contact | abut to the outer surface of the support | pillar 1 and the beam 2, and you may leave | separate. In addition, the present invention includes structures in which design changes, improvements, combinations, and the like have been made without departing from the scope of the invention.
[0035]
【The invention's effect】
According to the first aspect of the present invention, since one connecting member includes the column connecting portion and the beam connecting portion, the number of parts can be reduced, and work efficiency and manufacturing cost can be reduced. be able to.
By covering the outer surface of the column with the column cover, durability against impact from the outside of the column can be improved.
By covering the outer surface of the beam with the beam cover, the beam is not exposed to the outside, and durability against an impact from the outside of the beam can be improved.
Since both end portions of the beam are exposed without being covered by the beam cover, the connecting operation to the beam connecting portion can be easily performed.
Since it includes a connecting member cover that covers the beam connecting portion and one end of the beam cover and is connected to one end of the beam cover, the connecting portion between the connecting member and the beam is covered, so that bolts and the like are exposed to the outside. There is no exposure and the appearance can be improved.
[0036]
According to the second aspect of the present invention, the beam connecting portion sandwiches the end portion of the beam from the outside, so that durability against an impact from the outside of the end portion of the beam can be improved.
[0037]
According to the third aspect of the present invention, since the upper portion of the beam connecting portion is opened, the beam contacts the beam connecting portion and its movement is not hindered. it can.
[0038]
According to the fourth aspect of the present invention, even if the beam expands or contracts due to heat, the plurality of protrusions can catch the change due to the expansion and contraction of the beam. It can be a protective fence that can be handled. Further, since the protrusion can suppress the impact applied to the beam cover, it can be a protective fence with excellent durability.
[0039]
According to the fifth aspect of the present invention, even if the support column expands or contracts due to heat, the change due to the expansion and contraction of the support column can be received by the plurality of protrusions. It can be a protective fence that can be handled. Furthermore, since the protrusion can suppress the impact applied to the support column cover, it can be a protective fence excellent in durability.
[0040]
According to the sixth aspect of the present invention, the beam cover is made by mixing wood powder and resin, melting the mixed material, and extruding it, so that durability against impact from the outside of the beam can be improved. In addition, since the wood powder is included, the beam cover has a woody appearance and can be a protective fence that harmonizes naturally.
[0041]
According to the seventh aspect of the present invention, the support column cover is formed by mixing wood powder and resin, melting the mixed material, and extruding it. Therefore, durability against impact from the outside of the support column can be improved. . In addition, since the wood powder is included, the support cover has a woody appearance and can be used as a protective fence in harmony with nature.
[0043]
According to the eighth aspect of the present invention, one end of the beam covered with the beam cover fitted on the outer surface of the connecting member cover is connected to the connecting member, and the connecting member cover is moved to a position covering the beam connecting portion. Then, since the beam cover and the connecting member cover are connected, the connecting operation is not hindered by the connecting member cover at the time of connection, and the connecting operation can be easily performed. Further, after the connection, the beam connecting portion is covered so that the bolt or the like of the connecting portion is not exposed to the outside, and the appearance can be improved.
[Brief description of the drawings]
FIG. 1 is a front view of a protective fence according to an embodiment of the present invention.
FIG. 2 is a perspective view of a connecting member in the embodiment.
FIG. 3 is a longitudinal sectional view of a part of the protective fence in the embodiment.
FIGS. 4A and 4B are a longitudinal sectional view, a sectional view taken along line AA, and a sectional view taken along line BB in which a part of the protective fence in the embodiment is seen through;
FIG. 5 is a perspective view of a connecting member of a protective fence in the prior art.
[Explanation of symbols]
1 support 2 beam 3 connecting member 4 connecting member cover 12 support cover 12t protrusion 22 beam cover 22t protrusion 31 support connecting part 32 beam connecting part G ground

Claims (8)

所定間隔をおいて地面に立設される複数の支柱と、この支柱間に架け渡されるビームと、前記支柱と前記ビームとを連結する連結部材と、を備えた防護柵であって、
前記連結部材は、前記支柱の外側面に連結され、前記支柱の軸線を中心に回動可能な支柱連結部と、前記ビームを前記支柱の軸線に対して直交する軸線を中心に所定の角度変更自在に連結されるビーム連結部と、を有し、
前記ビーム連結部に連結される前記ビームの両端部が露出するように前記ビームの外側面を覆うビームカバーと、
前記支柱の外側面を覆う支柱カバーと、
前記ビーム連結部と前記ビームカバーの一端部とを覆い、前記支柱カバーの外側面から離間した位置で前記ビームカバーの一端部と連結される連結部材カバーと、
を備えることを特徴とする防護柵。A protective fence comprising a plurality of pillars erected on the ground at a predetermined interval, a beam spanned between the pillars, and a connecting member that couples the pillar and the beam,
The connecting member is connected to an outer surface of the support column and is capable of rotating around a support shaft axis, and a predetermined angle change centered on an axis perpendicular to the support shaft axis. A beam connecting portion that is freely connected,
A beam cover that covers an outer surface of the beam so that both ends of the beam connected to the beam connecting portion are exposed;
A support cover covering the outer surface of the support;
A connecting member cover that covers the beam connecting portion and one end portion of the beam cover, and is connected to one end portion of the beam cover at a position spaced from the outer surface of the column cover;
A protective fence characterized by comprising. 前記ビーム連結部は、前記ビームの端部を外側から挟み込んで支持することを特徴とする請求項１に記載の防護柵。  The guard fence according to claim 1, wherein the beam connecting portion supports the end portion of the beam by sandwiching it from the outside. 前記ビーム連結部の上方が開口されていることを特徴とする請求項１又は２に記載の防護柵。  The protective fence according to claim 1 or 2, wherein an upper portion of the beam connecting portion is opened. 前記ビームカバーは内側面に複数の突起を有することを特徴とする請求項１〜３のいずれか一項に記載の防護柵。The protective fence according to claim 1, wherein the beam cover has a plurality of protrusions on an inner surface. 前記支柱カバーは内側面に複数の突起を有することを特徴とする請求項１〜４のいずれか一項に記載の防護柵。The protective fence according to claim 1, wherein the support cover has a plurality of protrusions on an inner surface. 前記ビームカバーは、木粉と樹脂とを混合し、この混合材料を溶融させて押出成形したものからなることを特徴とする請求項１〜５のいずれか一項に記載の防護柵。The guard beam according to any one of claims 1 to 5, wherein the beam cover is made by mixing wood powder and resin, melting the mixed material, and extrusion-molding the mixed material. 前記支柱カバーは、木粉と樹脂とを混合し、この混合材料を溶融させて押出成形したものからなることを特徴とする請求項１〜６のいずれか一項に記載の防護柵。The said support | pillar cover consists of what mixed wood powder and resin, fuse | melted this mixed material, and was extrusion-molded, The guard fence as described in any one of Claims 1-6 characterized by the above-mentioned. 請求項１に記載の防護柵の構築方法であって、A construction method of the protective fence according to claim 1,
内側面に複数の突起を有する支柱カバーを前記支柱に被覆し、  Covering the column with a column cover having a plurality of protrusions on the inner surface,
内側面に複数の突起を有し、前記ビームの両端部を露出させるビームカバーを前記ビームに被覆し、  A plurality of protrusions on an inner surface, and covering the beam with a beam cover exposing both ends of the beam;
前記支柱に前記支柱連結部を連結し、  Connecting the column connecting part to the column;
前記ビーム連結部に、前記ビーム連結部と前記ビームカバーの一端部とを覆う連結部材カバーを設けた前記ビームを連結し、  The beam connecting part is connected to the beam provided with a connecting member cover that covers the beam connecting part and one end of the beam cover,
前記連結部材カバーを、前記ビーム連結部を覆い隠す位置まで移動させ、前記ビームカバーと前記連結部材カバーとを連結することを特徴とする防護柵の構築方法。  The construction method of the guard fence which moves the said connection member cover to the position which covers the said beam connection part, and connects the said beam cover and the said connection member cover.
JP2002163138A 2002-06-04 2002-06-04 Guard fence and construction method of guard fence Expired - Fee Related JP4057346B2 (en)

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