JP4129502B2 - Ant-proof material and ant-proof construction method - Google Patents

Ant-proof material and ant-proof construction method Download PDF

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JP4129502B2
JP4129502B2 JP2003051807A JP2003051807A JP4129502B2 JP 4129502 B2 JP4129502 B2 JP 4129502B2 JP 2003051807 A JP2003051807 A JP 2003051807A JP 2003051807 A JP2003051807 A JP 2003051807A JP 4129502 B2 JP4129502 B2 JP 4129502B2
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termite
proof
resin
adhesive
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JP2004257198A (en
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聡 北川
繁夫 吉田
昌良 鳥居
忠男 太田
善永 勝沢
繁 若菜
吉晴 木村
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ケミホルツ株式会社
ダウ化工株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、防蟻部材および防蟻工法に関し、詳しくは、住宅の床下空間などにおいて、布基礎などの基礎構造を白蟻が這い登って上部構造物に食害を及ぼすのを防ぐために使用される防蟻部材と、このような防蟻部材を使用する防蟻工法とを対象にしている。
【0002】
【従来の技術】
住宅の床下空間における防蟻技術として、布基礎の垂直な内壁面に、防蟻剤が配合された木桟や合成樹脂棒材を、水平方向に横断させて貼り付けておく技術が提案されている。このような防蟻機能を有する木桟や合成樹脂棒材を防蟻面木と呼ぶことがある。床下空間の全周において、布基礎を水平方向に横断する防蟻面木が存在していれば、白蟻は防蟻面木を乗り越えて柱や床などの上部構造へと侵入することが困難になる。防蟻機能のあるテープやシートを、布基礎の内壁面に貼り付けておく技術も知られている。
【0003】
また、これとは別の技術として、発泡ポリスチレンなどの断熱ボードを、床下空間の内壁面に貼り付けて、床下空間の断熱性を向上させる技術が知られている。このような床下断熱工法において、断熱ボードに対する白蟻の食害を防止するために、発泡ポリスチレンなどの製造時に、防蟻剤を配合しておくことが提案されている(例えば、特許文献1参照)。
【0004】
【特許文献1】
特開2002−88185号公報
【0005】
【発明が解決しようとする課題】
前記した防蟻面木の材料として、防蟻剤を含浸させた木質材を使用した場合、木質材そのものは白蟻の好物であるため、防蟻剤をよほど高濃度にしておかなければ、経時的に徐々に白蟻に侵食されて、防蟻機能が果たせなくなる。
一般住宅では、建築時に防蟻面木を設置すれば、その後は、定期的に防蟻面木を取り換えることなどは考慮されていないのが普通である。防蟻面木の防蟻機能は、ほぼ永久的に発揮できなければならない。前記した木質材では、このような使用形態には対応できない。
【0006】
合成樹脂の棒材であれば、白蟻が好む食料にはなり難いが、防蟻機能そのものが劣る。これは、樹脂材料に防蟻剤が配合されていても、成形された棒材の内部に閉じ込められた状態の防蟻剤は、表面における防蟻機能にはあまり関与しないため、実質的には無駄に配合されていることになるからである。棒材の表面に存在する防蟻剤が効力を失ったり弱くなったりしてしまうと、白蟻は棒材を容易に乗り越えてしまうことになる。表面に十分な量の防蟻剤が存在するようにするには、大量の防蟻剤を配合しておかなければならず、安全性および経済性の点で劣るものとなる。
【0007】
合成樹脂棒材を、多数の細孔を有する発泡樹脂棒材にすることで、内部に存在する防蟻剤の効力も有効に利用することが考えられる。
ところが、発泡樹脂には製造上の問題から、防蟻剤をあまり高濃度で配合することができない。例えば、前記特許文献1では、発泡倍率20〜50倍程度の発泡樹脂に対して、0.01〜5%程度までの防蟻剤しか配合できていない。この程度の配合量では、白蟻の侵入阻止を半永久的に果たすには不充分である。しかも、発泡樹脂そのものが、非発泡樹脂に比べて、白蟻が好んで食害を及ぼす物質であるという問題がある。そのため、防蟻剤の配合量が少ない発泡樹脂は、防蟻剤の効力が薄れた段階では、却って白蟻の食害を受け易くなる。
【0008】
本発明の課題は、前記した防蟻面木のように床下空間などにおける防蟻施工に利用される防蟻部材として、施工当初から長期間にわたって、良好な防蟻機能を持続的に発揮することのできるものを提供することである。
【0009】
【課題を解決するための手段】
本発明にかかる防蟻部材は、建築物の基礎構造の表面において水平方向に横断して配置され、基礎構造に接着剤で接合されて、白蟻の通過を阻止する防蟻部材であって、発泡倍率が1.5〜5倍の低発泡樹脂に防蟻剤が0.01〜10.0重量%配合された合成樹脂の押出成形品からなり配置状態における断面形状が、前記基礎構造の表面に当接する当接部と、当接部の一部であって基礎構造の表面から離れる方向に張り出した接着剤溜りと、当接部から外側に張り出して配置され、その下面が斜め下向きに延びる蟻返し部とを備える、ことを特徴とする
〔建築物の基礎構造〕
通常の住宅、集合住宅、オフィスビル、公共施設、その他の各種建築物に適用できる。
【0010】
建築物の基礎構造としては、住宅などで一般的な布基礎のほか、独立した柱状あるいは台状、筒状の基礎などもある。
防蟻部材を配置する基礎構造の表面は、通常は垂直面であるが、垂直方向に対して少し傾斜した傾斜面であったり、垂直面の一部に段差や凹凸を有しいたりする場合もある。本発明における垂直方向面には、上記のような傾斜面や段付面、凹凸面なども含まれる。
基礎構造は、通常、コンクリートで構築されるものが多いが、その他の石材や木質材、金属材で構成される場合もある。
【0011】
〔低発泡樹脂〕
防蟻剤の担持に適していれば、通常の各種成形品の製造に利用されている発泡樹脂の技術が適用できる。
合成樹脂として、アルケニル芳香族熱可塑性樹脂、ポリエチレン樹脂、ポリプロピレン樹脂が用いられる。
アルケニル芳香族熱可塑性樹脂の具体例としては、スチレン、α−メチルスチレン、o−メチルスチレン、m−メチルスチレン、p−メチルスチレン、アル−エチルスチレン、アル−ビニルキシレン、アル−クロロスチレン、アル−ブロモスチレンの固体ホモポリマーが挙げられる。これらのアルケニル芳香族化合物を1種以上と、これと容易に重合し得る少量のオレフィン性化合物との固体ポリマーも挙げられる。オレフィン性化合物としては、メチルメタクリレート、アクリロニトリル、無水マレイン酸、無水シトラコン酸、無水イタコン酸、アクリル酸が挙げられる。天然または合成ゴム補強スチレンポリマーも挙げられる。
【0012】
発泡樹脂を成形するには、発泡性を有する樹脂組成物を使用すればよい。押出成形する際に、押出機に合成樹脂と発泡剤とを注入して溶融混合したあと、口金から押出成形する方法も採用できる。樹脂材料には、その他にも、通常の添加剤が配合できる。
押出成形品は、樹脂材料を押出スクリューで加熱溶融混練して口金から押出す、通常の押出成形技術によって製造される。押し出す口金の形状等によって、押出成形品の寸法および断面形状が変更できる。
押出成形品は、発泡倍率が1.5〜5倍の低発泡樹脂とする。押出成形品の発泡倍率は、樹脂材料に配合する発泡剤の量や、加熱条件、押出条件などによって調整できる。発泡倍率が低過ぎると、防蟻機能が十分に発揮できない。発泡倍率が高過ぎると、防蟻剤が高濃度で配合された樹脂材料では成形が困難である。
【0013】
〔防蟻剤〕
通常の住宅などの白蟻対策に利用されている防蟻剤の中から、合成樹脂への配合に適した防蟻剤が使用できる。
例えば、以下の防蟻剤が挙げられる。
カーバメート系:カルバリル、フェノルカルブ、プロポクスル。
ピレスロイド系:アレスリン、ペルメトリン、トラロメトリン、ビフェントリン、アクリナトリン、アルファシペルメトリン、シフルトリン、シフェノトリン、プラレトリン。
【0014】
ピレスロイド様化合物:エトフェンプロックス、シラフルオフェン。
トリアジン系:トリプロピルイソシアネート(TPIC)。
クロルフェノール系:4−ブロモ−2,5−ジクロルフェノール(BDCP)。
クロルニコチル系:イミダクロプリド、アセタミプリド、クロチアニジン。
天然物系:カプリン酸、ヒバ中性油、ウコン。
無機化合物系:ホウ素、ホウ酸、ホウ酸亜鉛。
その他の化合物:ピレトリン、オクタクロロジプロピルエーテル、フィプロニル。
【0015】
これらの防蟻剤は、単独あるいは複数を併用して使用することができる。
特に好ましい防蟻剤として、ビフェントリン、シフェノトリン、イミダクロプリド、シラフルオフェンが挙げられる。
防蟻剤は、防蟻部材を構成する低発泡樹脂に対して、0.01〜10.0重量%配合しておく。好ましくは、0.05〜5.0重量%配合する。防蟻剤の配合量が多いほど、防蟻機能は高まるが、防蟻剤のコストがかかる。防蟻剤が多過ぎると、発泡成形が困難になる。前記配合量範囲の防蟻部材であれば、住宅の床下空間において、半永久的に十分な防蟻機能を発揮させることができる。
【0016】
〔防蟻部材の構造、使用形態〕
前記した押出成形によって作製可能な形状であれば、防蟻部材の寸法形状には、特に制限はない。防蟻部材として十分な性能や機能が発揮できる構造が採用できる。
防蟻部材として、通常の防蟻面木などと同様の構造が採用できる。例えば、角形などの棒状、帯板状、枠状、管状などの形態がある。
押出成形によって製造される防蟻部材は、同じ断面形状で長さ方向に連続したものになるが、押出成形後に加工したり、複数の部材を組み立てたりすることで、長さ方向で断面形状を変えたり、長さ方向に屈曲や湾曲、凹凸などを有する防蟻部材も得られる。
【0017】
低発泡樹脂の押出成形品に、別の合成樹脂、金属材料などからなる部材を、接合させたり積層したりして、防蟻部材を構成することもできる。
防蟻部材のうち、基礎構造の表面に配置して接着される面に、模様や凹凸を設けて、接着性を向上させることができる。防蟻部材を複数組み合わせて使用できるように、防蟻部材の端面に合いじゃくり構造や実(さね)構造を設けておくことができる。棒状の防蟻部材が、長手方向に連結自在であれば、施工長の調節が容易である。
<防蟻面木>
防蟻面木は、基礎構造の垂直方向につづく面を水平方向に横断して配置され、基礎構造に接着剤で接合される。垂直面の一端から他端まで連続して横断するように配置されてもよいし、垂直面の一部のみに配置されてもよい。
【0018】
防蟻面木の断面形状は、単純な角形のほか、防蟻機能および基礎構造への取付機能を高める形状構造を備えておくことができる。
例えば、配置状態における断面形状が、基礎構造の垂直方向面に当接する当接部と、当接部の一部であって基礎構造の垂直方向面から離れる方向に張り出した接着剤溜りと、当接部から外側に張り出して配置され、その下面が斜め下向きに延びる蟻返し部とを備えることができる。
当接部は、基礎構造への十分な大きさの接着面を提供する。そのために当接部の長さを1〜10cmに設定することが有効である。
【0019】
接着剤溜り部は、基礎構造との間に十分な量および厚みの接着剤を保持する機能を有し、白蟻が接着剤の隙間や塗布量が少ないところから侵入するのを阻止する。接着剤溜り部の形状は、矩形、三角形、台形、半円形などが採用できる。接着剤溜り部の深さを1〜10mmに設定することができる。接着剤溜り部は、当接部に対して、通常は、1個所設けておけばよい。当接部の高さ方向に間隔をあけて複数個所に接着剤溜り部を設けることもできる。
蟻返し部は、その下面から上面側へと白蟻が這い登ることが困難な形状に形成される。斜め下向きに延びる下面が十分な長さで存在すれば、白蟻は、傾斜した下面を下向きに移動してから上面側に這い登らなければならないので、実質的に通過できなくなる。下面の垂直方向に対する傾斜角度が小さいほど、白蟻の通過阻止が確実にできる。具体的には傾斜角度を0〜90度に設定できる。傾斜した下面の長さを1〜10cmに設定できる。傾斜角度を複数段階に変えたり、段差や溝を設けたりすることもできる。
【0020】
白蟻が下面を通過できなければ、上面側については、特に形状を限定する必要はない。下面と平行な傾斜辺であってもよいし水平辺や段差辺、湾曲辺であってもよい。
<防蟻部材の設置>
防蟻面木などの防蟻部材を基礎構造に設置するには、接着剤や粘着剤の使用、接着テープや粘着テープの使用、釘打、ネジ止め、その他の建材の取付手段が適用できる。
接着剤の具体例として、レゾルシノール系、水性高分子イソシアネート系、エポキシ系、ウレタン系、α−オレフィン無水マレイン酸系、シリコーン系、ポリサルファイド系、アクリル系、合成ゴム系、ブチルゴム系、シアノアクリレート系、ホットメルト系、変性酢酸ビニル系、酢酸ビニル系、フェノール系が挙げられる。
【0021】
防蟻剤が配合された防蟻接着剤を使用すれば、防蟻部材と基礎構造とを接合する接着剤を食い破って白蟻が防蟻部材を通過することが有効に阻止できる。前記した接着剤溜り部を有する防蟻部材の場合に特に有効である。
〔防蟻施工〕
防蟻部材を用いた防蟻施工は、通常の防蟻面木による防蟻施工と同様の方法が採用できる。
防蟻部材は、基礎構造の垂直方向面を水平方向に横断するように配置するのが効果的である。但し、施工状況によっては、完全な水平方向でなく傾斜方向に配置されたり上下に段が付くように配置されたりすることもある。複数本の防蟻部材を水平方向に並べて連結配置しておくことで、基礎構造の垂直面を一端から他端まで連続して防蟻部材を配置することができる。
【0022】
基礎構造のうち、白蟻が這い登る可能性がある垂直方向面の全てに、防蟻部材を隙間なく配置しておくことが望ましい。例えば、住宅において布基礎で囲まれた床下空間の場合、床下空間の全周の基礎構造に連続して防蟻部材を配置する。柱状の基礎構造の場合、柱の全周を防蟻部材で囲む。地盤から上部構造へと立ち上がる配管やダクトの場合も、その全周に防蟻部材を配置するのが好ましい。
防蟻部材を垂直面との間に接着剤を介して基礎構造に接着することで、防蟻部材と基礎構造との間に隙間をあけることなく防蟻部材を確実に取りつけることができる。
【0023】
本発明の防蟻部材と、防蟻剤が配合された断熱材とを組み合わせて施工することもできる。例えば、基礎構造の垂直面に板状の断熱材を施工し、板状断熱材の上辺もしくは下辺に防蟻部材を配置すれば、防蟻部材と防蟻剤配合断熱材とで、相乗的な防蟻機能を発揮させることができる。断熱材として、比較的に低発泡の合成樹脂発泡ボードを使用するのが防蟻剤の配合に適している。
【0024】
【発明の実施の形態】
図1に示す実施形態は、住宅の床下基礎に施工された防蟻部材である。
〔床下構造〕
一般的な住宅の床下構造として、布基礎20が施工される。布基礎20は、コンクリートを打設して構築され、断面が逆T字状の壁構造をなす。布基礎20の下部は地盤Eに埋設される。住宅の外回りおよび居住区画の境界に沿って、格子状に布基礎20が配置される。布基礎20の上に、土台を介して、梁、根太、さらには床板、壁その他の上部構造が施工される。格子状の布基礎20で囲まれた空間が床下空間である。通常、一つの住宅には、布基礎20で囲まれた複数の床下空間が存在する。
【0025】
〔防蟻部材〕
図1に示す防蟻部材10は、発泡ポリスチレン(GPPSとHIPSとの混合物)の低発泡押出成形品からなり、同じ断面で長さ方向に延びる形棒材の形態を有する防蟻面木である。
防蟻部材10の断面形状は、布基礎20の垂直な内壁面に当接し、垂直方向に直線状に延びる当接部12と、当接部12の途中が外側に半円状に張り出した接着剤溜り部16と、当接部12の上端から斜め下向きに直線状に延びる蟻返し部14とを有していて、全体が逆「レ」字形をなしている。
【0026】
防蟻部材10は、布基礎20の内壁面に対して、高さ方向の途中で水平方向に内壁面全体を横断するように配置される。四方が布基礎20で囲まれた床下空間の場合、四方の布基礎20に連続して防蟻部材10を配置し、床下空間の全周が防蟻部材10によって隙間なく囲まれるようにする。定寸の棒状に作製された防蟻部材10を用意しておき、継ぎ足したり切り落としたりして使用すれば、任意の構造の床下空間に防蟻部材10を施工することができる。
防蟻部材10は、防蟻接着剤層30によって布基礎20に接着される。防蟻接着剤層30は、通常の防蟻施工に利用される防蟻接着剤と同様のものが使用できる。防蟻接着剤層30は、当接部12と布基礎20表面との間に、薄い層状に配置されているとともに、接着剤溜り部16の中に充填された状態になっている。このような状態を構成するには、布基礎20の表面に多目に防蟻接着剤を塗工したり、防蟻部材10の当接部12裏面に防蟻接着剤を塗工する際に、接着剤溜り部16の中に接着剤が満たされるように塗工しておいたりすればよい。
【0027】
〔防蟻部材の具体例〕
<発泡成形>
ポリスチレン樹脂100重量部(GPPS:HIPS=30:70)に対し、ジス・アゾ系化学発泡剤2重量部、防蟻剤(商品名:ケミホルツターマイトIMパウダー、ケミホルツ社製)5重量部を、押出機内で溶融混合した後、押出機の先端に装着した金型の口金から、125℃の温度で押出成形し、冷却槽で冷却して、板状の低発泡体を得た。板状の低発泡体は、発泡倍率2.2倍、幅68mm、厚み5.5mmであった。
【0028】
<防蟻部材の構造>
図1に示す構造である。前記した板状の低発泡体から加工された。
当接部12の高さ50mm、厚み5.5mm。
蟻返し部14の長さ30mm、厚み5.5mm、当接部12との角度30度。
接着剤溜り部16の半径5mm。
<防蟻接着剤>
変性酢酸ビニル系接着剤に、防蟻剤としてシラフルオフェンを0.1重量%配合してなる防蟻接着剤(商品名:アリコングルーSI、ファースト化工社製)を用いた。防蟻接着剤の塗布量は300g/m2であった。
【0029】
<防蟻機能>
上記した防蟻部材を、図1に示す形態で一般住宅の床下基礎に施工したところ、良好な防蟻効果が達成できることが確認できた。
【0030】
【発明の効果】
本発明にかかる防蟻部材は、低発泡樹脂からなり、白蟻の通過阻止を長期間にわたって持続的に発揮するのに十分な量の防蟻剤が配合されている。しかも、低発泡樹脂の内部に配合された防蟻剤が、低発泡樹脂の細孔構造から表面へと徐々に進出して防蟻機能を発揮することができるので、配合された防蟻剤が無駄なく有効に活用される。低発泡樹脂の防蟻部材は、軽量で切断などの加工も可能であり、施工作業が容易になる。
その結果、住宅の床下空間などに対する防蟻施工を、簡単かつ確実に行うことが可能になり、防蟻施工の普及あるいは需要の拡大にも大きく貢献できる。
【図面の簡単な説明】
【図1】 本発明の実施形態を表す施工状態の斜視断面図
【符号の説明】
10 防蟻部材
12 当接部
14 蟻返し部
16 接着剤溜り部
20 布基礎
30 防蟻接着剤
E 地盤
[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to an ant-proof member and an ant-proofing method, and more particularly, to prevent a white ant from climbing up a foundation structure such as a cloth foundation and causing damage to an upper structure in a space under a house. It is intended for ant members and ant-proofing methods using such ant-proof members.
[0002]
[Prior art]
As a ant-proofing technique in the space under the floor of a house, a technique has been proposed in which a wooden cross and a synthetic resin bar mixed with an ant-proofing agent are horizontally crossed and pasted on the vertical inner wall surface of a fabric foundation. Yes. A wooden cross or a synthetic resin bar having such an ant-proofing function is sometimes referred to as an ant-proof face tree. If there is an ant face wood that crosses the cloth foundation horizontally in the entire circumference of the underfloor space, it is difficult for white ants to get over the ant face wood and enter the upper structure such as pillars and floors. Become. There is also known a technique in which a tape or sheet having an ant-proof function is attached to the inner wall surface of a cloth foundation.
[0003]
As another technique, a technique is known in which a heat insulation board such as expanded polystyrene is attached to the inner wall surface of the underfloor space to improve the heat insulation of the underfloor space. In such an underfloor heat insulating method, it has been proposed to add an ant preventive agent at the time of manufacturing foamed polystyrene or the like in order to prevent white ants from being damaged by the heat insulating board (for example, see Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-88185
[Problems to be solved by the invention]
When the wood material impregnated with the termite-proofing agent is used as the material for the above-mentioned termite-proofing surface wood, the woody material itself is a favorite of white ants, so if the concentration of the termite-proofing agent is not very high, It is gradually eroded by white ants and the function of preventing ants cannot be fulfilled.
In general houses, if an ant-proof wall is installed at the time of construction, then it is usually not considered to periodically replace the ant-proof wall. The ant-proof function of the ant-proof face tree must be able to be exhibited almost permanently. The above-mentioned wood material cannot cope with such a usage pattern.
[0006]
If it is a bar of synthetic resin, it is difficult to become a food preferred by white ants, but the ant protection function itself is inferior. This is because even if an ant-preventing agent is blended in the resin material, the ant-preventing agent in a state of being confined inside the molded bar material is not so much involved in the ant-preventing function on the surface. This is because it is wasted. If the termite-proofing agent present on the surface of the bar is lost or weakened, the white ants can easily get over the bar. In order for a sufficient amount of the termite-preventing agent to be present on the surface, a large amount of the termite-preventing agent must be blended, which is inferior in terms of safety and economy.
[0007]
By using a synthetic resin rod as a foamed resin rod having a large number of pores, it may be possible to effectively utilize the efficacy of the termite-preventing agent present inside.
However, due to manufacturing problems, it is not possible to add an anti-anticide at a very high concentration to the foamed resin. For example, in the said patent document 1, only 0.01 to 5% of anti-anticide can be mix | blended with respect to the foaming resin of about 20 to 50 times of foaming ratio. Such a blending amount is insufficient to prevent the invasion of white ants semipermanently. Moreover, there is a problem that the foamed resin itself is a substance that is preferred by white ants compared to the non-foamed resin and causes damage. Therefore, the foamed resin with a small amount of the termite-preventing agent is liable to be damaged by white ants when the effectiveness of the termite-preventing agent is reduced.
[0008]
The object of the present invention is to provide a good ant protection function for a long period of time from the beginning of construction as an ant protection member used for ant protection construction in an underfloor space such as the above-mentioned ant protection face wood. It is to provide what can be done.
[0009]
[Means for Solving the Problems]
Anti-termite member according to the present invention is placed across the Oite horizontally to the surface of the substructure of the building, it is adhesively bonded to the basic structure, a termite member for preventing the passage of termites expansion ratio is made from extrusion of synthetic resin termiticide is blended 0.01 to 10.0 wt% to 1.5 to 5 times the low foaming resin, the cross-sectional shape in the arrangement, the basic structure An abutment part that abuts against the surface of the adhesive, an adhesive reservoir that is a part of the abutment part and projects away from the surface of the foundation structure, and projects outward from the abutment part, with its lower surface facing diagonally downward And an ant turn part extending in the direction .
[Basic structure of buildings]
It can be applied to ordinary houses, apartment houses, office buildings, public facilities, and other various buildings.
[0010]
As the basic structure of a building, in addition to cloth foundations commonly used in houses, there are independent columnar, trapezoidal, and cylindrical foundations.
Surface of the substructure to place the anti-termite member, when normally is a vertical plane, which lead has or a inclined surface slightly inclined, a part of the vertical plane a step or unevenness in the vertical direction There is also. The vertical direction surface in the present invention includes the above inclined surface, stepped surface, uneven surface, and the like.
The foundation structure is usually constructed of concrete, but may be composed of other stone materials, wood materials, or metal materials.
[0011]
[Low foaming resin]
As long as it is suitable for supporting the termite-proofing agent, the technology of the foamed resin used for the production of various ordinary molded products can be applied.
As the synthetic resin, an alkenyl aromatic thermoplastic resin, a polyethylene resin, or a polypropylene resin is used.
Specific examples of the alkenyl aromatic thermoplastic resin include styrene, α-methylstyrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, al-ethylstyrene, al-vinylxylene, al-chlorostyrene, al -Solid homopolymers of bromostyrene. Also included are solid polymers of one or more of these alkenyl aromatic compounds and a small amount of an olefinic compound that can be easily polymerized therewith. Examples of the olefinic compound include methyl methacrylate, acrylonitrile, maleic anhydride, citraconic anhydride, itaconic anhydride, and acrylic acid. Mention may also be made of natural or synthetic rubber reinforced styrene polymers.
[0012]
In order to mold the foamed resin, a resin composition having foamability may be used. At the time of extrusion molding, a method of injecting synthetic resin and a foaming agent into an extruder, melt-mixing, and then extruding from a die can be employed. Besides the above, ordinary additives can be blended with the resin material.
The extruded product is produced by a normal extrusion molding technique in which a resin material is heated and melt-kneaded with an extrusion screw and extruded from a die. The dimensions and cross-sectional shape of the extruded product can be changed depending on the shape of the die to be extruded.
The extruded product is a low-foamed resin having a foaming ratio of 1.5 to 5 times. The expansion ratio of the extruded product can be adjusted by the amount of the foaming agent blended in the resin material, heating conditions, extrusion conditions, and the like. If the expansion ratio is too low, the ant-proof function cannot be fully exhibited. If the expansion ratio is too high, it is difficult to mold with a resin material containing a high concentration of the termite-proofing agent.
[0013]
[Anti-anticide]
Among the termite-proofing agents used for white ants countermeasures such as ordinary houses, ant-proofing agents suitable for blending with synthetic resins can be used.
For example, the following ant preventives are mentioned.
Carbamates: carbaryl, phenolol, propoxur.
Pyrethroid: Allethrin, permethrin, tralomethrin, bifenthrin, acrinatrin, alpha cypermethrin, cyfluthrin, ciphenothrin, praretrin.
[0014]
Pyrethroid-like compounds: etofenprox, silafluophene.
Triazine type: tripropyl isocyanate (TPIC).
Chlorphenol type: 4-bromo-2,5-dichlorophenol (BDCP).
Chlornicotil: Imidacloprid, acetamiprid, clothianidin.
Natural products: Capric acid, Hiba neutral oil, Turmeric.
Inorganic compound system: boron, boric acid, zinc borate.
Other compounds: pyrethrin, octachlorodipropyl ether, fipronil.
[0015]
These termite-proofing agents can be used alone or in combination.
Particularly preferred antifungal agents include bifenthrin, ciphenothrin, imidacloprid, and silafluophene.
The termite-proofing agent is blended in an amount of 0.01 to 10.0% by weight with respect to the low foaming resin constituting the termite-proofing member. Preferably, 0.05 to 5.0% by weight is blended. As the amount of the ant preventive agent increases, the ant preventive function increases, but the cost of the ant preventive agent increases. If there are too many anti-anticides, foam molding becomes difficult. If it is an ant prevention member of the said compounding quantity range, it can exhibit a sufficient ant prevention function semipermanently in the underfloor space of a house.
[0016]
[Structure and usage of ant-proof members]
If it is a shape which can be produced by the above-mentioned extrusion molding, there is no restriction | limiting in particular in the dimension shape of an ant-proof member. A structure capable of exhibiting sufficient performance and function as an ant-proof member can be employed.
As the ant-proof member, a structure similar to that of a normal ant-proof face tree can be employed. For example, there are rod shapes such as a square shape, a band plate shape, a frame shape, and a tubular shape.
The ant-proof member produced by extrusion molding is continuous in the length direction with the same cross-sectional shape, but by processing after extrusion molding or assembling a plurality of members, the cross-sectional shape in the length direction is changed. It is possible to obtain an ant-preventive member that changes or has a bend, a curve, an unevenness or the like in the length direction.
[0017]
A member made of another synthetic resin, a metal material, or the like may be joined to or laminated on the low foamed resin extrusion-molded product to constitute an ant-proof member.
A pattern or unevenness can be provided on the surface of the ant-proof member that is disposed and adhered to the surface of the foundation structure to improve the adhesion. In order to be able to use a combination of a plurality of ant-proof members, it is possible to provide an end face of the ant-proof member with a pricking structure or a real (sane) structure. If the rod-shaped ant protection member can be connected in the longitudinal direction, the construction length can be easily adjusted.
<Anti-faced wood>
The ant-proof face wood is disposed horizontally across the surface of the foundation structure that continues in the vertical direction, and is joined to the foundation structure with an adhesive. You may arrange | position so that it may cross | intersect continuously from one end to the other end of a perpendicular | vertical surface, and may be arrange | positioned only to a part of perpendicular | vertical surface.
[0018]
The cross-sectional shape of the ant-proof face wood can be provided with a shape structure that enhances the ant-proof function and the attachment function to the foundation structure in addition to a simple square shape.
For example, the cross-sectional shape in the arrangement state is an abutting portion that abuts on the vertical surface of the foundation structure, an adhesive reservoir that is a part of the abutting portion and protrudes away from the vertical surface of the foundation structure, It can be provided with a dovetail part which is arranged to project outward from the contact part and whose lower surface extends obliquely downward.
The abutment provides a sufficiently large adhesive surface to the foundation structure. Therefore, it is effective to set the length of the contact portion to 1 to 10 cm.
[0019]
The adhesive reservoir has a function of holding a sufficient amount and thickness of the adhesive between the adhesive and the base structure, and prevents white ants from entering from a space where there is little gap between the adhesive and the amount of application. As the shape of the adhesive reservoir, a rectangle, a triangle, a trapezoid, a semicircle, or the like can be adopted. The depth of the adhesive reservoir can be set to 1 to 10 mm. Usually, one adhesive reservoir may be provided for the contact portion. It is also possible to provide adhesive reservoirs at a plurality of locations with intervals in the height direction of the contact part.
The ant turning portion is formed in a shape that makes it difficult for white ants to climb from the lower surface to the upper surface side. If the lower surface extending obliquely downward exists with a sufficient length, the white ants cannot move substantially because they have to move up the inclined lower surface and then climb up to the upper surface side. The smaller the angle of inclination of the lower surface with respect to the vertical direction, the more reliably white ants can be prevented from passing. Specifically, the inclination angle can be set to 0 to 90 degrees. The length of the inclined lower surface can be set to 1 to 10 cm. It is also possible to change the inclination angle in a plurality of stages, or to provide steps or grooves.
[0020]
If the white ants cannot pass through the lower surface, it is not necessary to limit the shape of the upper surface side. It may be an inclined side parallel to the lower surface, a horizontal side, a step side, or a curved side.
<Installation of ant-proof members>
In order to install an ant-proof member such as an ant-proof face wood on the foundation structure, use of an adhesive or an adhesive, use of an adhesive tape or an adhesive tape, nailing, screwing, or other means for attaching a building material can be applied.
Specific examples of adhesives include resorcinol, aqueous polymer isocyanate, epoxy, urethane, α-olefin maleic anhydride, silicone, polysulfide, acrylic, synthetic rubber, butyl rubber, cyanoacrylate, Hot melt type, modified vinyl acetate type, vinyl acetate type and phenol type can be mentioned.
[0021]
If the ant-preventive adhesive compounded with the ant-repellent is used, it is possible to effectively prevent the white ants from passing through the ant-preventive member by breaking through the adhesive that joins the ant-preventive member and the base structure. This is particularly effective in the case of the ant-proof member having the above-described adhesive reservoir.
[Anti-ant construction]
For the ant proofing construction using the ant proofing member, the same method as the ant proofing construction using a normal ant proof face wood can be adopted.
It is effective to arrange the ant-proof member so as to cross the vertical surface of the foundation structure in the horizontal direction. However, depending on the construction situation, it may be arranged not in a completely horizontal direction but in an inclined direction, or may be arranged with steps up and down. By arranging and connecting a plurality of ant protection members in a horizontal direction, the ant protection members can be arranged continuously from one end to the other end of the vertical surface of the foundation structure.
[0022]
Of the basic structure, it is desirable to arrange the ant-proof members without any gaps on all the vertical surfaces where the white ants may climb. For example, in the case of an underfloor space surrounded by cloth foundations in a house, the ant proof members are arranged continuously on the entire base structure of the underfloor space. In the case of a columnar foundation structure, the entire circumference of the column is surrounded by an ant-proof member. Even in the case of a pipe or duct that rises from the ground to the upper structure, it is preferable to arrange an ant-proof member around the entire circumference.
By bonding the ant-proof member to the base structure via an adhesive between the vertical surface and the vertical surface, the ant-proof member can be securely attached without a gap between the ant-proof member and the base structure.
[0023]
It can also be constructed by combining the ant-proof member of the present invention and a heat insulating material containing an ant-proofing agent. For example, if a plate-shaped heat insulating material is installed on the vertical surface of the foundation structure, and an ant-proof member is placed on the upper or lower side of the plate-shaped heat insulating material, the ant-proof member and the ant-proof agent-containing heat insulating material are synergistic. An ant-proof function can be exhibited. The use of a relatively low foam synthetic resin foam board as the heat insulating material is suitable for the compounding of the termite-proofing agent.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
The embodiment shown in FIG. 1 is an ant proof member constructed on the underfloor foundation of a house.
[Underfloor structure]
The fabric foundation 20 is constructed as a general residential underfloor structure. The fabric foundation 20 is constructed by placing concrete, and has a wall structure with an inverted T-shaped cross section. The lower part of the fabric foundation 20 is embedded in the ground E. The cloth foundation 20 is arranged in a lattice shape along the outer periphery of the house and the boundary of the living section. On the fabric foundation 20, beams, joists, floor boards, walls and other superstructures are constructed through a base. A space surrounded by the lattice-shaped cloth foundation 20 is an underfloor space. Usually, a single house has a plurality of underfloor spaces surrounded by the fabric foundation 20.
[0025]
[Anti-ants]
An ant-proof member 10 shown in FIG. 1 is an ant-proof surface wood made of a low-expanded extruded product of expanded polystyrene (a mixture of GPPS and HIPS) and has a shape of a bar material extending in the length direction in the same cross section. .
The cross-sectional shape of the ant-proof member 10 is in contact with the vertical inner wall surface of the fabric foundation 20 and is bonded in such a manner that the contact portion 12 extends linearly in the vertical direction and the middle of the contact portion 12 projects outward in a semicircular shape. It has an agent reservoir 16 and a dovetail portion 14 that extends linearly downward from the upper end of the abutting portion 12, and the whole has an inverted “L” shape.
[0026]
The ant-proof member 10 is arranged so as to cross the entire inner wall surface in the horizontal direction in the middle of the height direction with respect to the inner wall surface of the fabric foundation 20. In the case of an underfloor space surrounded by the fabric foundation 20 on all four sides, the ant protection member 10 is continuously arranged on the four side fabric foundation 20 so that the entire circumference of the underfloor space is surrounded by the ant protection member 10 without any gaps. If the ant-proof member 10 prepared in the shape of a fixed-size rod is prepared and used after being added or cut off, the ant-proof member 10 can be constructed in an underfloor space having an arbitrary structure.
The ant-proof member 10 is bonded to the fabric base 20 by the ant-proof adhesive layer 30. The ant-proof adhesive layer 30 can be the same as the ant-proof adhesive used in normal ant-proofing construction. The ant-proof adhesive layer 30 is disposed in a thin layer between the contact portion 12 and the surface of the fabric base 20 and is filled in the adhesive reservoir 16. In order to configure such a state, when the ant-proof adhesive is applied to the surface of the fabric base 20 or when the ant-proof adhesive is applied to the back surface of the contact portion 12 of the ant-proof member 10, The adhesive reservoir 16 may be coated so that the adhesive is filled.
[0027]
[Specific examples of ant-proof members]
<Foam molding>
For 100 parts by weight of polystyrene resin (GPPS: HIPS = 30: 70), 2 parts by weight of the disazo chemical foaming agent and 5 parts by weight of the termite-proofing agent (trade name: Chemiholtzermit IM powder, manufactured by Chemiholz) After melt-mixing in the extruder, it was extruded from a die attached to the tip of the extruder at a temperature of 125 ° C. and cooled in a cooling tank to obtain a plate-like low foam. The plate-like low foam had an expansion ratio of 2.2 times, a width of 68 mm, and a thickness of 5.5 mm.
[0028]
<Structure of ant protection member>
It is the structure shown in FIG. It processed from the above-mentioned plate-shaped low foam.
The contact portion 12 has a height of 50 mm and a thickness of 5.5 mm.
The length of the dovetail portion 14 is 30 mm, the thickness is 5.5 mm, and the angle with the contact portion 12 is 30 degrees.
The radius of the adhesive reservoir 16 is 5 mm.
<Anti-proofing adhesive>
An ant-preventive adhesive (trade name: Arikon Glu SI, manufactured by Fast Chemical Co., Ltd.) obtained by blending 0.1% by weight of silafluorfen as an anti-anticide to the modified vinyl acetate adhesive was used. The application amount of the ant-proofing adhesive was 300 g / m 2 .
[0029]
<Anti-antagonism function>
When the above-mentioned ant-preventive member was applied to the underfloor foundation of a general house in the form shown in FIG.
[0030]
【The invention's effect】
The ant-preventive member according to the present invention is made of a low-foam resin, and contains a sufficient amount of an ant-repellent agent so that the passage of white ants can be continuously exhibited over a long period. Moreover, since the anti-anticide compounded inside the low-foam resin can gradually advance from the pore structure of the low-foam resin to the surface and exert its anti-ant function, It is used effectively without waste. The low foaming resin ant-proof member is lightweight and can be processed such as cutting, thus facilitating construction work.
As a result, it becomes possible to easily and surely carry out ant-proofing work on the under-floor space of a house, and can greatly contribute to the spread of ant-proofing work or the expansion of demand.
[Brief description of the drawings]
FIG. 1 is a perspective sectional view of a construction state representing an embodiment of the present invention.
DESCRIPTION OF SYMBOLS 10 Ant proof member 12 Contact part 14 Ant flip part 16 Adhesive reservoir part 20 Cloth base 30 Ant preventive adhesive E Ground

Claims (3)

建築物の基礎構造の表面において水平方向に横断して配置され、基礎構造に接着剤で接合されて、白蟻の通過を阻止する防蟻部材であって、
発泡倍率が1.5〜5倍の低発泡樹脂に防蟻剤が0.01〜10.0重量%配合された合成樹脂の押出成形品からなり
配置状態における断面形状が、前記基礎構造の表面に当接する当接部と、当接部の一部であって基礎構造の表面から離れる方向に張り出した接着剤溜りと、当接部から外側に張り出して配置され、その下面が斜め下向きに延びる蟻返し部とを備える、
ことを特徴とする、防蟻部材。
Is disposed across the Oite horizontally to the surface of the substructure of the building, it is adhesively bonded to the basic structure, a termite member for preventing the passage of termites,
Expansion ratio is from extrusion of synthetic resin termiticide is blended 0.01 to 10.0 wt% to 1.5 to 5 times the low foaming resin,
The cross-sectional shape in the arrangement state is a contact portion that contacts the surface of the foundation structure, an adhesive reservoir that is a part of the contact portion and protrudes away from the surface of the foundation structure, and outward from the contact portion. It is arranged so as to overhang, and its lower surface includes a dovetail part extending obliquely downward,
An ant-proof member characterized by that .
前記合成樹脂が、アルケニル芳香族熱可塑性樹脂、ポリエチレン樹脂、ポリプロピレン樹脂からなる群から選ばれたものであり、前記防蟻剤が、カーバメート系、ピレスロイド系、ピレスロイド様化合物、トリアジン系、クロルフェノール系、クロルニコチニル系、天然物系、無機化合物系からなる群から選ばれたものである請求項1に記載の防蟻部材。The synthetic resin is selected from the group consisting of an alkenyl aromatic thermoplastic resin, a polyethylene resin, and a polypropylene resin. , Kurorunikochiniru based, natural-based, is a member selected from the group consisting of inorganic compound, anti-termite member according to claim 1. 建築物の基礎構造の表面に、白蟻の通過を阻止する防蟻部材を設置する防蟻工法であって、請求項1または2に記載の防蟻部材を、前記基礎構造の垂直面の少なくとも一部に水平方向に連続して配置する防蟻工法。On the surface of the substructure of a building, a termite method of installing the termite member for preventing the passage of termites, the termite member according to Motomeko 1 or 2, at least in the vertical plane of the substructure The termite-proofing method , which is arranged horizontally in a part on a part.
JP2003051807A 2003-02-27 2003-02-27 Ant-proof material and ant-proof construction method Expired - Fee Related JP4129502B2 (en)

Priority Applications (1)

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