JP2005016204A - Accessory for waterproof construction and joint structure using it and joining method - Google Patents

Accessory for waterproof construction and joint structure using it and joining method Download PDF

Info

Publication number
JP2005016204A
JP2005016204A JP2003184085A JP2003184085A JP2005016204A JP 2005016204 A JP2005016204 A JP 2005016204A JP 2003184085 A JP2003184085 A JP 2003184085A JP 2003184085 A JP2003184085 A JP 2003184085A JP 2005016204 A JP2005016204 A JP 2005016204A
Authority
JP
Japan
Prior art keywords
waterproof
waterproof construction
layer
base
base material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2003184085A
Other languages
Japanese (ja)
Other versions
JP4025251B2 (en
Inventor
Hajime Okamoto
肇 岡本
Nobunao Murakami
信直 村上
Kan Hasegawa
完 長谷川
Hiroshi Takahashi
拡 高橋
Shigeru Matsuda
繁 松田
Takeshi Inoue
武志 井上
Yasunori Date
泰則 伊達
Kozo Fukao
康三 深尾
Chikako Tsumura
千香子 津村
Shinji Watanabe
信治 渡辺
Kenzo Iwamoto
憲三 岩本
Yoshitaka Higashida
義孝 東田
Junichi Inemoto
順一 禾本
Goro Nakano
五郎 中野
Ryoichi Yamabe
亮一 山部
Shigetaka Shimizu
重孝 清水
Tetsuo Ota
哲雄 太田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsuboshi Belting Ltd
Takenaka Komuten Co Ltd
Architectural Yamade Corp
Original Assignee
Mitsuboshi Belting Ltd
Takenaka Komuten Co Ltd
Architectural Yamade Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsuboshi Belting Ltd, Takenaka Komuten Co Ltd, Architectural Yamade Corp filed Critical Mitsuboshi Belting Ltd
Priority to JP2003184085A priority Critical patent/JP4025251B2/en
Publication of JP2005016204A publication Critical patent/JP2005016204A/en
Application granted granted Critical
Publication of JP4025251B2 publication Critical patent/JP4025251B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Laminated Bodies (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To keep the shape even in the case of a joining while maintaining a durability and a watertightness. <P>SOLUTION: An accessory for a waterproof construction has a horizontal flange 2 and a vertical flange 3. Both flanges 2 and 3 are constituted by laminating and unifying a sheet-shaped base material 31 having a conductivity, base layers 33, which are arranged so as to hold the base material 31 and in which a main component is composed of a PTFE resin, adhesive layers 32, which are arranged among the base material 31 and the base layers 33 while fast sticking the base layers 33 and the base material 31 and in which the main component is composed of a PFA resin, and surface layers 34, which are disposed to both outermost layers of both flanges 2 and 3 and in which the main component is composed of an FEP resin. The surface layers 34 are heated by heat-generation of the base material 31 and bonding layers are formed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、導電性を有する基材をフッ素樹脂にて被覆してなる防水施工用役物及びそれを用いた接合構造、接合方法に関する。
【０００２】
【従来の技術】
建築物の陸屋根面のシート防水工事における出入隅部分を有する施工面に対して防水シートを敷設する際、入隅線及び出隅線が交わる部分の入隅角及び出隅角や床スラブを貫通している円形パイプ等の曲線状の入隅線及び出隅線を有する部分には必ず小さな穴が残ってしまい、防水シートのみの敷設では防水が出来ない部分が生じる。そこで、この様な部位には予め、その形状に合わせて防水シートを構成するシート材と同様の熱可塑性樹脂のみから成る役物をその部分にあてがい、適当な接着剤もしくは熱溶着を用いて防水シートに接合して防水層を形成している。
【０００３】
役物と防水シートの接合方法は溶剤系の接着剤による常温接着が一般的であるが、接着剤を用いる接合方法では、防水シートを構成するシート材の繊維強化による表面の凹凸に起因して接着が不十分となり、接着剤塗布後、ローラや鏝による加圧により防水シートと役物との接合部を密着させる作業が必要で非常に手間がかかる。また、役物の形状が施工面と若干異なり整合しなかった場合において、役物を手持式熱風機で加熱し、役物を軟化させた上で加圧して、その形状を施工面に馴染ませてから防水シートを接着しているために、施工性がよくない。しかし、役物本体に使用される熱可塑性樹脂は軟質塩化ビニール樹脂等の適度な柔軟性と粘りがあり、１２０℃程度の温度で軟化し、材料が伸び易い性質をもった樹脂であるため、材料厚みが１．５〜２．０ｍｍ程度であれば施工面への形状に整合させることが可能であり、接合品質及び止水性能は確保できるため汎用されている。ただし、接着剤使用時の溶剤揮発による臭気問題がある。
【０００４】
ここで、ガラス繊維で補強されたフッ素樹脂製シートは膜屋根材料として用いられてはいるものの、建物の屋上防水における防水シートとしての利用例はない。したがって、それの役物も存在しない。また、膜構造物では入隅線、出隅線、入隅角及び出隅角等を有する施工面に対する有効な材料・工法がないために、その設計形状や納まりに制約がある。このことはフッ素樹脂が高耐久性という特徴は有するものの、難接着性、難加工性、難作業性などに起因している。
【０００５】
なお、前述したフッ素樹脂とは市販されているニフッ化ポリエチレン樹脂、三フッ化ポリエチレン樹脂などではなく、耐久性の非常に高いＰＴＦＥ（四フッ化エチレン）樹脂やＰＦＡ（四フッ化エチレン・パーフルオロアルコキシエチレン共重合体）樹脂、ＦＥＰ（四フッ化エチレン・六フッ化エチレン共重合体）樹脂など主鎖および側鎖の炭素・フッ素結合で構成されている所謂パーフルオロ樹脂を指す。具体的に言えば、前述したフッ素樹脂は接着剤による接着が困難であり、ホットメルト接着（溶着）のみでしか接合できない。しかもその特性上、一般的に汎用されている熱可塑樹脂と比べ融点が３００℃前後と高く、メルトフローしにくいために加圧しなければ接着しない。また、それ自体が硬く柔軟性が少ないことから加熱しても伸びにくい性質などが挙げられる。しかしながら、これらの特性は樹脂の種類によって若干異なる性質があり、適宜、その用途によって使い分けがなされている。前述の膜屋根材料として用いられるフッ素樹脂製シートはＰＴＦＥ樹脂が用いられている。このシート同士のホットメルト接合は熱盤により行われるのが常法である。しかし、このときの溶着条件としては、熱盤温度３８０℃で加熱時間が９０秒と高温で長時間の加熱が必要であり、接合するシートの被着面同士が密着できるだけの加圧力が必要となる。さらに接合の信頼性を高めるためにメルトフローに比較的優れたＦＥＰ樹脂フィルムやＦＥＰ樹脂ゲルを溶着接合補助材としてシート被着面間に挿入する必要があり、極めて作業性が困難な接合作業となる。
【０００６】
ここで熱盤での溶着接合時の発熱効率を改善した電磁誘導加熱を利用したホットメルト接合が一般的に知られている。電磁誘導加熱の場合では、発熱源として金属箔や金属板やその加工品といった導電性材料が必要となり、その導電性材料を被着物であるシートの上部、シートの内部、シート下部に配置して行われている。しかしながら、発熱源としての導電性材料をシートの上部、又は下部に設置した場合は被着面を直接加熱できないため、結果として熱盤と同様な作業性となり、電磁誘導加熱の高発熱効率の優位性を活用できない。一方、シート材間（被着面同士の間）に導電性材料を設置する場合には導電性材料と付着性が小さいことから接合の品質を損ないやすいことになる。
【０００７】
例えば、特許文献１には、本体を熱可塑性樹脂であるポリオレフィン系樹脂で構成し、その表面もしくは中間部に電磁誘導加熱に必要な導電性多孔シート体を積層一体化した防水シート敷設用固定治具を用いて、敷設する防水シートと電磁誘導加熱により溶着する方法が記載されている。この方法においては、電磁誘導作用による導電性多孔シート体の発熱熱効率が高く、短時間で防水シートと固定用治具を接合できるとともに、その接合作業が容易となって施工性が向上する。また、導電性多孔シート体を用いることにより、固定治具本体の樹脂との付着性の小さいことによる接合品質の不具合が改善されている。また、防水シートとの接合時において、臭気などが発生しないために良好な作業環境となる。
【０００８】
【特許文献１】
特開２０００−１７０３２７号公報
【０００９】
【発明が解決しようとする課題】
しかしながら、特許文献１に記載の技術において、防水シート敷設用固定治具は、本体全体が同じ樹脂層となっているので、仮に本体の樹脂を比較的メルトフローしやすいフッ素樹脂で構成し、導電性多孔シートと積層一体化した固定治具を用いて防水シートと接合すると、その接合時において、本体の樹脂全体がメルトフローして、防水シート敷設用固定治具の形状が保てなくなり、樹脂の厚みにバラツキが生じてそれ自体の耐久性が低下し、水密性を維持することが困難となる問題が生じる。
【００１０】
本発明は、前述のような問題点を考慮し、接合時においてその形状を保つとともに、耐久性及び水密性を維持する防水施工用役物及びそれを用いた接合構造、接合方法を提供することを目的とする。
【００１１】
【課題を解決するための手段】
本発明の請求項１に記載の防水施工用役物は、導電性を有するシート状の基材と、前記基材を挟むように配置され、主成分がフッ素樹脂で構成された基層と、前記基層と前記基材との間に配置されるとともに、それらを密着させる密着層と、主成分が前記基層より融点が低いフッ素樹脂で構成され、一方又は両方の最外層にあって加熱されることで接着層を形成する表層とが積層して構成されていることを特徴とするものである。
【００１２】
このような構成によると、高周波による電磁誘導作用によって基材を誘導加熱した場合において、一方又は両方の最外層にあって主成分が基層より低いフッ素樹脂で構成された表層が溶融し、それが接着層となるので、表層の主成分がフッ素樹脂で構成された防水シートと接合固定することができるとともに、防水施工用役物の表層が溶融するだけとなるので、本体全体の樹脂がメルトフローするものより、それの形状を保持することが可能となる。従って、防水施工用役物同士又は防水施工用役物と防水シートとを接合する場合において、防水施工用役物の厚みのバラツキが抑制され、耐久性及び水密性の機能を維持することができる。また、防水施工用役物の内部に基材が存在することによって、防水施工用役物の強度が向上し、下地にアンカー材などを用いて防水施工用役物を固定することができる。従って、防水施工用役物に下地から剥がす方向に力が加わっても、浮いたり、剥がれたりすることを防止することができる。
【００１３】
請求項２に記載の防水施工用役物は、前記基材が、線径が０．１ｍｍ〜０．５ｍｍで且つ２０〜６０メッシュ（０．８ｍｍ〜２．４ｍｍ）の金属織物、又は厚さ０．０１ｍｍ〜０．１ｍｍの金属箔で形成されていることを特徴とするものである。
【００１４】
このような構成によると、基材が金属織物の場合では、線径が０．１ｍｍ〜０．５ｍｍと適度に細いため、下地及び防水シート同士の接合部に防水施工用役物を追従変形させて固定することができる。つまり、下地に防水施工用役物を固定する場合においては、下地の形状が多少、防水施工用役物と異なっていても、必要に応じて変形させて下地に追従させることができるとともに、防水シート同士の接合部に防水施工用役物を固定する場合においては、防水シート同士の接合部の段差（防水シート同士の厚みによる段差）に防水施工用役物を変形させて追従させることができる。また、金属織物が２０〜６０メッシュ（０．８ｍｍ〜２．４ｍｍ）となっているために、防水施工用役物を構成する樹脂同士が、基材を境にして剥離することを防ぐことができる。つまり、２０〜６０メッシュの金属織物が有する開口部で、防水施工用役物を構成する樹脂同士が接合し、基材を境にして剥離することを防いでいる。
また、基材が金属箔の場合では、同面積あたりの密度が高くなり、電磁誘導作用による基材の発熱性がより向上する。そのため、厚さ０．０１ｍｍ〜０．１ｍｍの範囲内の金属箔とすることが可能となり、金属織物と同様に下地及び防水シート同士の接合部に防水施工用役物を追従変形させて固定することが容易に行える。
【００１５】
請求項３に記載の防水施工用役物は、前記基層の片側の厚みが、それぞれ０．０５ｍｍ〜０．４ｍｍの範囲内で、前記密着層の片側の厚みが、それぞれ０．０２５ｍｍ〜０．０５ｍｍの範囲内であることを特徴とするものである。
【００１６】
このような構成によると、基材を挟むようにして配置された基層の片側の厚みがそれぞれ０．０５ｍｍ〜０．４ｍｍの範囲内であるために、防水施工用役物の下地に対する形状追従性を確保しつつ、防水施工用役物の耐久性が向上したものとなる。また、密着層の片側の厚みがそれぞれ０．０２５ｍｍ〜０．０５ｍｍの範囲内であるために、電磁誘導作用による基材の発熱時に基材の位置を安定させつつ、基材と基層との密着性を確保することができる。
【００１７】
請求項４に記載の防水施工用役物の接合構造は、導電性を有するシート状の基材と、前記基材を挟むように配置され、主成分がフッ素樹脂で構成された基層と、前記基層と前記基材との間に配置されるとともに、それらを密着させる密着層と、主成分が前記基層より融点が低いフッ素樹脂で構成され、一方又は両方の最外層にあって加熱されることで接着層を形成する表層とが積層して構成された防水施工用役物と、表層がフッ素樹脂で構成されている防水シートとの当接部、又は前記防水施工用役物同士の当接部とが加熱により溶融一体化して接着層を形成していることを特徴とするものである。
【００１８】
このような構成によると、高周波による電磁誘導作用によって基材を誘導加熱した場合において、防水施工用役物同士の当接部、又は防水施工用役物と防水シートとの当接部が溶融一体化して接着層を形成しているので、それらを接合固定することができる。従って、防水施工用役物同士を接合したり、防水施工用役物と防水シートとを接合固定することができる。
【００１９】
請求項５に記載の防水施工用役物の接合方法は、導電性を有するシート状の基材と、前記基材を挟むように配置され、主成分がフッ素樹脂で構成された基層と、前記基層と前記基材との間に配置されるとともに、それらを密着させる密着層と、主成分が前記基層より融点が低いフッ素樹脂で構成され、一方又は両方の最外層にあって加熱されることで接着層を形成する表層とが積層して構成された防水施工用役物と、表層がフッ素樹脂で構成されている防水シートとを重ね合わせた部分、又は前記防水施工用役物同士を重ね合わせた部分を加熱装置により、前記重ね合わせた部分の接した両表層を溶融して接着することを特徴とするものである。
【００２０】
このような構成によると、防水施工用役物と防水シートとを重ね合わせた部分、又は防水施工用役物同士を重ね合わせた部分の接した両表層を加熱装置で溶融して接着する。そのため、それらを接合固定することができる。従って、防水施工用役物同士を接合したり、防水施工用役物と防水シートとを接合固定することができる。
【００２１】
【発明の実施の形態】
以下、図面に基づいて本発明の実施の形態例を説明する。図１は、本発明の一実施の形態に係る防水施工用役物に防水シートが接合固定された状況を示す断面図である。図２は、本発明の一実施の形態に係る防水施工用役物の概略構成を示す斜視図である。図３は、図２に示す防水施工用役物の要部拡大断面図である。
【００２２】
図１に示すように防水施工用役物１は、構造物の防水すべき屋上などの床面となる底面体１１と、その底面体１１から立ち上がる側面体１２と、底面体１１と側面体１２とが出会う位置に形成される入隅線１３と、で構成された下地１４に、ビスなどのアンカー材１５で固定されている。そして、防水施工用役物１上には防水シート１６が配置されて接合固定されている。
【００２３】
なお、防水シート１６は、図１に示すようにガラス繊維で形成されたシート材１６ａと、そのシート材１６ａを挟むようにして形成された表層１６ｂとで構成された積層構造体である。本実施の形態における防水シート１６のシート材１６ａは、ガラス繊維で形成されているが、特に限定するものではなく、他の繊維からなるシート材や金属製のシート材であっても良い。また、表層１６ｂには後述する防水施工用役物１の表層３４と同様の材質であるＦＥＰ樹脂で構成されており、防水施工用役物１と接合する際の加熱溶解時の相溶性が良く好ましいが、他のフッ素樹脂で構成されていても良い。
【００２４】
図２に示すように防水施工用役物１は、水平フランジ２と垂直フランジ３とを有しており、その水平フランジ２及び垂直フランジ３の一端部同士が連結一体化し、断面がＬ字形状となるように構成されている。なお、水平フランジ２及び垂直フランジ３にそれぞれ２つずつ形成されたテーパ状の貫通孔１０に前述したアンカー材１５が貫通されて防水施工用役物１が下地１４に固定されている。
【００２５】
また、図３に示すように両フランジ２，３は、導電性を有するシート状の基材３１と、その基材３１を挟むように配置され、主成分がＰＴＦＥ樹脂で構成された基層３３と、基材３１と基層３３との間に配置されるとともに、基層３３と基材３１とを密着させ、主成分がＰＦＡ樹脂で構成された密着層３２と、両フランジ２，３の両側の最外層に配置されるとともに、主成分がＦＥＰ樹脂で構成された表層３４とが積層一体化して構成されている。
【００２６】
図２及び図３に示すように基材３１は、ステンレス製の線材５を経糸及び緯糸として交差するようにして構成されたシート状の金属織物となっているが、特に限定するものではない。本実施の形態において、基材３１の材質には、耐食性及び発熱性からステンレスを適用しているが、鋼、アルミニウム、アルミニウム合金、溶融アルミニウムメッキ鋼、溶融亜鉛メッキ鋼など、電磁誘導作用により発熱する導電性金属素材であればよい。
【００２７】
また、基材３１の線材５の線径は、０．１ｍｍ〜０．５ｍｍの範囲内であればよく、線径が０．１ｍｍ未満であれば防水施工用役物１と若干形状が異なる下地に追従させて防水施工用役物１を敷設する際や後述するように防水シート１８ａ〜１８ｃ同士の接合部の段差１９が存在する部分に防水施工用役物１を接合する際に、基材３１の線材５が切断される可能性がある。また、基材３１を後述するように誘導加熱し、表層３４を溶融して防水シート１６と防水施工用役物１とを接合固定する際に、表層３４を溶融させる程度が不十分となって、十分な接合強度を確保することが困難となる。一方、基材３１の線径が０．５ｍｍ以上であれば、防水施工用役物１と若干形状が異なる下地に追従させて防水施工用役物１を敷設する際や後述するように防水シート１８ａ〜１８ｃ同士の接合部の段差１９が存在する部分に防水施工用役物１を接合する際に、防水施工用役物１の強度が大きくなりすぎて、下地及び防水シート１８ａ〜１８ｃ同士の段差１９に追従させることが困難となり、浮きやガタツキを生じさせる可能性があるので好ましくない。
【００２８】
また、線材５の線径が０．１ｍｍ〜０．５ｍｍであるために、線材５が防水施工用役物１の表面に凸となってあらわれにくく、防水施工用役物１の表面が比較的平滑になるために、防水シート１６との接合が良好となる。つまり、電磁誘導作用により基材３１が発熱して防水施工用役物１の表層３４が加熱されて溶融した際に、線材５が防水施工用役物１の表面に凸となってあらわれにくいので、防水シート１６との接合部（当接部）が比較的平滑な状態となるためにそれらの接合状態が良好となる。また、線材５の線径が０．１ｍｍ〜０．５ｍｍと適度に細いため、下地及び防水シート同士の接合部に防水施工用役物１を追従変形させて固定することができる。つまり、下地に防水施工用役物１を固定する場合においては、下地の形状が多少、防水施工用役物１と異なっていても、必要に応じて変形させて下地に追従させることができるとともに、後述するように防水シート１８ａ〜１８ｃ同士の接合部に防水施工用役物１を固定する場合においても、防水シート１８ａ〜１８ｃ同士の接合部の段差（防水シート同士の厚みによる段差）１９に防水施工用役物１を変形させて追従させることができる。
【００２９】
また、基材３１の金属織物の織り方としては、綾織、平織りのどちらでも適用することが可能であり、基材３１の線材５間に形成される開口部６であるメッシュで、図３に示す両フランジ２，３の密着層３２が連結一体化している。このメッシュは、２０〜６０メッシュ（０．８ｍｍ〜２．４ｍｍ）が好ましく、２０メッシュ（０．８ｍｍ）未満であれば、両フランジ２，３の基材３１とそれを挟む密着層３２との接合強度が不足し、基材３１を境にして剥離する可能性がある。一方、６０メッシュ（２．４ｍｍ）以上であれば基材３１を後述するように誘導加熱し、表層３４を溶融して防水シート１６と防水施工用役物１とを接合固定する際に、開口部６と重なる部分の表層３４を溶融させる程度が不十分となって、防水シート１６と防水施工用役物１との接合強度を確保することが困難となる。
【００３０】
このように金属織物が２０〜６０メッシュの範囲内とすることで、防水施工用役物１を構成する樹脂同士が、基材３１を境にして剥離することを防ぐことができる。つまり、２０〜６０メッシュの金属織物が有する開口部６で、防水施工用役物１を構成する密着層３２同士が連結一体化し、基材３１を境にして剥離することを防いでいる。
【００３１】
また、基材３１には、前述した金属織物と同様な材質で構成されるシート状の金属箔も適用することができる。金属箔の場合であれば、金属織物に比べ同面積あたりの密度が高く、電磁誘導作用による基材の発熱性がより向上する。また、金属箔の厚みは、前述した金属織物と同様に防水施工用役物と若干形状の異なった下地及び防水シート１８ａ〜１８ｃ同士の接合部の段差１９において、必要に応じて変形させて追従させることが容易に行えるように、０．０１ｍｍ〜０．１ｍｍの範囲内が好適である。金属箔の厚みが０．０１ｍｍ未満であれば、防水施工用役物と若干形状が異なる下地に追従させて防水施工用役物を敷設する際や防水シート１８ａ〜１８ｃ同士の接合部の段差１９が存在する部分に防水施工用役物を接合する際に、金属箔の基材が破損して防水施工用役物の耐久性が低下する可能性がある。一方、金属箔の厚みが０．１ｍｍ以上であれば、防水施工用役物と若干形状が異なる下地に追従させて防水施工用役物を敷設する際や防水シート１８ａ〜１８ｃ同士の接合部の段差１９が存在する部分に防水施工用役物を接合する際に、防水施工用役物の強度が大きくなりすぎて、下地及び防水シート１８ａ〜１８ｃ同士の段差１９に追従させることが困難となり、浮きやガタツキを生じさせる可能性があるので好ましくない。
【００３２】
また、基材３１には、前述した金属織物や金属箔が適用されるため、その肉厚が、０．０１ｍｍ〜１．０ｍｍの範囲となる。なお、金属織物を基材３１に適用した際において、線材５の線径が０．５ｍｍの場合では、線材５が交差して重なるので金属織物の厚みが最大１．０ｍｍとなる。このような、金属織物や金属箔を基材３１に使用することで、防水施工用役物１を下地１４に固定させる際に、追従させて変形させることが可能となり、下地１４の形状が若干、防水施工用役物１と異なっていても、必要に応じて変形させて下地１４の底面体１１と側面体１２に沿うようにして追従させることができるとともに、防水施工用役物１の厚みも薄いものとなり、防水施工用役物１と防水シート１６とを接合固定した部分の出っ張りなどが余り目立たず、防水シート１６の敷設後の美観がよくなる。
【００３３】
本実施の形態において、基層３３に融点が３２７℃のＰＴＦＥ樹脂を適用しているが、融点が３１０℃のＰＦＡ樹脂やその変性樹脂を適用することが可能である。このＰＴＦＥ樹脂は、熱特性面でメルトフロー性が小さく、電磁誘導加熱時の形状安定性が優れていることから適用している。この基層３３の片側の厚さは、それぞれ０．０５ｍｍ〜０．４ｍｍの範囲内とし、基材３１の金属織物の表面から０．０５ｍｍ〜０．２ｍｍ程度は被覆できるようにしている。基層３３の厚みが０．０５ｍｍ未満であれば、防水施工用役物１の基材３１を電磁誘導作用で加熱したときに、防水施工用役物１の形状が保持できない可能性が生じる。つまり、電磁誘導作用による基材３１の発熱時に基層３３が軟化した場合において、基層３３の厚みが薄すぎるために、防水施工用役物１の形状を維持することが困難となり、防水施工用役物１の耐久性が減少する。一方、基層３３の厚みが０．４ｍｍ以上であれば、防水施工用役物１の基材３１を電磁誘導作用で加熱したときに、表層３４を溶融する時間がかかり、防水施工用役物１と防水シート１６との接合作業性が低下する。このように基層３３の片側の厚みがそれぞれ０．０５ｍｍ〜０．４ｍｍの範囲内であるために、防水施工用役物１の下地１４に対する形状追従性を確保しつつ、防水施工用役物１の耐久性が向上したものとなる。
【００３４】
また、本実施の形態において、密着層３２に融点が３１０℃のＰＦＡ樹脂を適用しているが、融点が２６０℃のＦＥＰ樹脂やその変性樹脂を適用することが可能である。このＰＦＡ樹脂は、ＦＥＰ樹脂よりも融点が高く、後述するように表層３４にＦＥＰ樹脂を適用した場合においては、防水シート１６等と接合する溶着熱効率を高めることが可能になるので適用している。この密着層３２の片側の厚さは、電磁誘導作用による基材３１の発熱時に基材３１の位置を安定させつつ、基材３１と基層３３との密着性を確保するために、それぞれ０．０２５ｍｍ〜０．０５ｍｍの範囲内としている。密着層３２の厚みが０．０２５ｍｍ未満であれば、基材３１と基層３３とを密着させるその接合力が低いものとなり好ましくない。一方、密着層３２の厚みが０．０５ｍｍ以上であれば、電磁誘導作用による基材３１の発熱に伴って密着層３２が溶融した場合において、基材３１の位置が大きく移動する可能性があり、基材３１の位置安定性が低下して好ましくない。
【００３５】
また、本実施の形態において、表層３４に融点が２６０℃のＦＥＰ樹脂を適用しているが、ＰＦＡ樹脂やその変性樹脂を使用することが可能である。つまり、基層３３より融点が低いフッ素樹脂であれば適用可能であり、表層３４と基層３３の融点の温度差が３０℃以上、好ましくは５０℃程度である。このような融点の温度差は、基材３１が電磁誘導作用によって発熱した場合に、基層３３を溶融させずに表層３４のみを溶融することができ、防水施工用役物１の形状保持性及び水密性確保のために好ましいからである。
【００３６】
また、表層３４の厚みは、防水施工用役物１と接合する相手側の接合面の凹凸に依存するために、接合時にメルトフローした表層３４が接合面の凹凸を埋めて接合するに足る量が必要となり、基材３１に金属箔を適用した場合では、表層３４の厚みが０．０１ｍｍ〜０．０２５ｍｍ程度となり、基材３１に金属織物を適用した場合では、表層３４の厚みが０．０２５ｍｍ〜０．０５ｍｍ程度となる。なお、防水施工用役物１における基層３３と表層３４間は、基層３３を変形させることなく接合を可能とする側面から傾斜構造を有するものが望ましい。具体的には、メルトフローの小さいＰＴＦＥ樹脂にメルトフローの大きいＦＥＰ樹脂の組み合わせにおける浸漬法やラミネート法によって具現化が可能である。
【００３７】
また、前述した防水施工用役物１を構成するフッ素樹脂は、前述したＰＴＦＥ樹脂、ＰＦＡ樹脂、ＦＥＰ樹脂以外に、ＥＴＦＥ（四フッ化エチレン・エチレン共重合体）樹脂、ＰＶＤＦ（ビニリデンフルオライド）樹脂、ＰＶＦ（ビニルフルオライド）樹脂、ＣＴＦＥ（クロロトリフルオロエチレン）樹脂、ＥＣＴＦＥ（エチレン・クロロトリフルオロエチレン）樹脂などの樹脂からも適宜選択して適用することが可能である。
【００３８】
また、前述した防水施工用役物１の形状は、本実施の形態において、入隅線１３を構成する底面体１１と側面体１２に沿うようなＬ字形状となっているが、基材３１の外側に向かって順に密着層３２、基層３３及び表層３４が積層して一体化しておれば、どのような形状でもよく、特に限定するものではない。また、両側の最外層に表層３４が形成されているが、片側だけに形成されていても良い。つまり、防水施工用役物と防水シートとが接する側の最外層が表層３４となっていれば、後述する防水施工用役物１と防水シート１６とが接合固定されるように同様に接合固定することが可能となり、両側の最外層に表層３４が形成された防水施工用役物１と同様な効果を有することになる。
【００３９】
次に、防水施工用役物１と形状が異なる防水施工用役物６１，６２，８１，８２について、以下に説明する。図４に示すような各階の底面となる底面体５１と底面体５１から立ち上がる側面体５２とで形成されるＢ部の入隅角５０Ｂ及びＣ部の出隅角５０Ｃと、側面体５２同士が出会う位置の上部であって、側面体５２と側面体５２の上部に位置する湾曲した部分５３とで形成されるＡ部の出隅角５０Ａ及びＤ部の入隅角５０Ｄを防水する場合では、それらに適合する形状を有する図５及び図６に示す防水施工用役物６１、６２が使用される。図４に示す出隅角５０Ａ及び入隅角５０Ｂには、図５に示す防水施工用役物６１が適用され、図４に示す出隅角５０Ｃ及び入隅角５０Ｄには、図６に示す防水施工用役物６２が適用される。
【００４０】
図５に示す防水施工用役物６１は、出隅角５０Ａ及び入隅角５０Ｂを形成する底面体５１と側面体５２と湾曲した部分５３とに沿うような形状に形成されており、ほぼ中央部分に出隅角５０Ａ及び入隅角５０Ｂと重なる点６１ａを有している。また、防水施工用役物６１は前述した防水施工用役物１と同じ断面構造となるような基材３１、密着層３２、基層３３及び表層３４を有している。つまり、防水施工用役物６１の両側の最外層には、表層３４が形成されており、出隅角５０Ａに防水施工用役物６１を配置させる場合には、防水施工用役物６１の点６１ａが外側に向かって凸となるようにして配置させる。一方、入隅角５０Ｂに防水施工用役物６１を配置させる場合では、防水施工用役物６１の点６１ａが内側に向かって凸となるようにして配置させる。つまり、出隅角５０Ａに配置した防水施工用役物６１をひっくり返した状態で入隅角５０Ｂに配置させる。
【００４１】
また、図６に示す防水施工用役物６２は、出隅角５０Ｃ及び入隅角５０Ｄを形成する底面体５１と側面体５２と湾曲した部分５３とに沿うような形状に形成されており、ほぼ中央部分に出隅角５０Ｃ及び入隅角５０Ｄと重なる点６２ａを有している。また、防水施工用役物６２は前述した防水施工用役物１と同じ断面構造となるような基材３１、密着層３２、基層３３及び表層３４を有している。つまり、防水施工用役物６２の両側の最外層にも表層３４が形成されており、出隅角５０Ｃ及び入隅角５０Ｄに防水施工用役物６２を配置させる場合には、前述した防水施工用役物６１と同様に防水施工用役物６２が適合する方向で配置させる。
【００４２】
このように、図５及び図６に示す形状の防水施工用役物６１，６２を適用することで、防水シートのみでは防水できない出入隅角５０Ａ〜５０Ｄの防水を行うことが可能となる。また、防水施工用役物６１，６２には両面に表層３４が形成されているので、防水シートを敷設して形成されたＡ部からＤ部の出入隅角部分に防水シート上に配置させて、防水シートと防水施工用役物６１，６２を接合固定することができる。また、防水施工用役物１も両側の最外層に表層３４が形成されているので同様に防水シート１６を敷設して形成された入隅線部分に防水シート１６上に配置させて、防水シート１６と防水施工用役物１とを接合固定することができる。
【００４３】
また、図７に示すような底面体７１から円柱状の構造物７２が凸状に形成されている場合では、その構造物７２の周壁７３と底面体７１とでなす入隅線７４に適合する図８及び図９に示すような形状の防水施工用役物８１，８２を使用すればよい。図８及び図９に示す防水施工用役物８１，８２は、構造物７２の周壁７３及び底面体７１の一部を覆いつつ、それらで形成される円状の入隅線７４の一部を覆う形状に形成されており、前述した防水施工用役物１と同様な断面構造となるような基材３１、密着層３２、基層３３及び表層３４を有している。また、図８に示す防水施工用役物８１は、図９に示す防水施工用役物８２とほぼ同形状となっているが、防水施工用役物８２より防水施工用役物８１の周長が長くなっている。
【００４４】
図７に示すように構造物７２の周壁７３と底面体７１とでなす入隅線７４を防水する場合においては、まず、周長の長い防水施工用役物８１で周壁７３及び底面体７１の一部に沿わせつつ、入隅線の大半を覆うとともに、防水施工用役物８１で覆われていない入隅線７４を防水施工用役物８２で覆うと共に、それの端部を防水施工用役物８１の端部上に重ね合わせる。そして、後述する防水シート１６と防水施工用役物１との接合方法と同様に防水施工用役物８１，８２同士が重なった部分の外方から電磁誘導加熱機（加熱装置）を配置すると共に、基材３１を電磁誘導作用で加熱させつつ、０．０２〜０．１Ｎ／ｍｍ２程度の加圧を行う。基材３１の誘導加熱開始後、約１０秒で防水施工用役物８１，８２同士の当接部８３（防水施工用役物８１，８２同士が重なって接している部分）の両表層３４がメルトフローし、接着層を形成しつつ防水施工用役物８１，８２同士が当接部８３で接合固定される。このような防水施工用役物８１，８２同士の接合構造によって、前述と同様に防水シート１６のみでは防水できない円状の入隅線７４の防水を行うことが可能となる。なお、防水施工用役物１，６１，６２も同様な積層構造を有しているために同様に防水施工用役物同士を接合固定することができる。
【００４５】
続いて、前述した防水施工用役物１を使用して防水シート１６を接合固定する接合方法及び接合構造について、以下に説明する。なお、前述した防水施工用役物６１，６２，８１，８２は、防水施工用役物１と同様な断面構造を有しているために、同様にして防水シート１６と接合固定することができるので、詳細の説明を省略する。
【００４６】
図１に示すように構造物の防水すべき屋上などの床面となる底面体１１とその底面体１１から立ち上がる側面体１２とが出会う位置に形成される入隅線１３に、防水施工用役物１を配置させて下地１４に固定する。つまり、防水施工用役物１の水平フランジ２と底面体１１とを、ビス、開脚釘、カールプラグ等のアンカー材１５を用いて水平フランジ２の貫通孔１０を貫通させて、下地１４の底面体１１と固定するとともに、防水施工用役物１の垂直フランジ３と下地１４の側面体１２も同様にアンカー材１５を用いて貫通孔１０に貫通させて固定する。
【００４７】
次いで、下地１４に固定した防水施工用役物１を防水シート１６で覆うとともに、底面体１１と側面体１２に沿うようにして配置する。そして、図１０（ａ）に示すように電磁誘導加熱機（加熱装置）９０を防水シート１６と防水施工用役物１とが重なり合う部分の防水シート１６の表面側に配置させると共に、図１０（ｂ）に示すように電磁誘導加熱機９０の照射面９１を当接させ、好ましくは、０．０２〜０．１Ｎ／ｍｍ２程度の加圧を行いながら高周波を照射する。このとき、防水シート１６と防水施工用役物１とが重なり合う部分の防水シート１６の表面上で電磁誘導加熱機９０の照射面９１を動かしながら高周波を照射しても良い。
【００４８】
そして、この高周波によって、導電性を有する基材３１に過電流が生じ、防水施工用役物１の基材３１が発熱（即ち、電磁誘導作用による発熱）し、防水シート１６の表層１６ｂと防水施工用役物１の表層３４とが対向して接する当接部１７で両表層１６ｂ，３４が溶融一体化して接着層２０となり、０．０２〜０．１Ｎ／ｍｍ２の加圧で防水施工用役物１と防水シート１６とが接合固定される。こうして、防水施工用役物１と防水シート１６との接合構造が構成される。また、基材３１の発熱によって表層３４より融点が高い密着層３２及び基層３３が溶融しないものの軟化するために、下地１４の形状が防水施工用役物１の形状と若干異なっていた場合に、防水施工用役物１が下地１４に追従するとともに、防水シート１６及び防水施工用役物１の当接部１７の両表面が密着する。このようにして、下地１４に固定された防水施工用役物１と防水シート１６とを接合固定することができる。
【００４９】
続いて、前述した下地１４に敷設した防水シート１８ａ〜１８ｃ上に防水施工用役物１を固定する接合方法及び接合構造について以下に説明する。
【００５０】
図１１は、本実施の形態における防水施工用役物が防水シート上に接合固定された状況を示す断面斜視図である。図１１に示すように前述した下地１４の底面体１１に沿って防水シート１８ａが敷設され、その防水シート１８ａの入隅線１３に沿う端部に重ねつつ、側面体１２に沿って防水シート１８ｂが敷設されている。また、防水シート１８ｂには、それの一部と重なるように防水シート１８ｃが敷設されており、防水シート１８ｃの厚みによる段差１９を覆うようにして防水シート１８ｂ，１８ｃ上に防水施工用役物１が配置されている。なお、防水シート１８ａ，１８ｂ，１８ｃの材質及び断面構造などは、前述した防水シート１６と同様である。
【００５１】
このように配置された防水施工用役物１を防水シート１８ｂ、１８ｃへ接合する方法は、前述した防水シート１６と防水施工用役物１との接合方法と同様の接合方法で行うことができる。すなわち、防水施工用役物１の表面側に前述した電磁誘導加熱機９０を配置させると共に、それの照射面９１を当接させ、０．０２〜０．１Ｎ／ｍｍ２程度の加圧を行いながら高周波を照射する。すると、高周波によって導電性を有する基材３１に過電流が生じ、防水施工用役物１の基材３１が発熱し、防水シート１８ｂ，１８ｃの表層と防水施工用役物１の表層３４とが対向して接する当接部の両表層が溶融一体化して接着層となり、０．０２〜０．１Ｎ／ｍｍ２の加圧で防水施工用役物１と防水シート１８ｂ，１８ｃとが接合固定される。こうして、防水シート１８ａ〜１８ｃ上に防水施工用役物１が接合した接合構造が構成される。
【００５２】
また、基材３１の発熱によって表層３４より融点が高い密着層３２及び基層３３が溶融しないものの軟化するために、防水シート１８ｃによる段差１９に防水施工用役物１が追従変形し、防水シート１８ｂ，１８ｃと防水施工用役物１との当接部の両表面が密着する。このようにして、下地１４に敷設された防水シート１８ａ〜１８ｃに防水施工用役物１を接合固定することができる。また、前述した防水施工用役物６１，６２，８１，８２も同様にして防水シート上に接合固定することができる。
【００５３】
以上のように、防水施工用役物１，６１，６２，８１，８２によれば、高周波による電磁誘導作用によって基材３１を誘導加熱した場合において、表層３４が溶融しそれが接着層となるので、表層の主成分がフッ素樹脂で構成された防水シートと接合固定することができるとともに、防水施工用役物１，６１，６２，８１，８２の表層３４が溶融するだけとなるので、本体全体の樹脂がメルトフローするものより、それの形状を保持することが可能となる。従って、防水施工用役物同士又は防水施工用役物と防水シートとを接合する場合において、防水施工用役物の厚みのバラツキが抑制され、耐久性及び水密性の機能を維持することができる。また、防水施工用役物１，６１，６２，８１，８２の内部に基材３１が存在することによって、それの強度が向上し、下地１４にアンカー材などを用いて防水施工用役物を固定することができる。従って、防水施工用役物に下地１４から剥がす方向に力が加わっても、浮いたり、剥がれたりすることを防止することができる。
【００５４】
【実施例】
次に、本発明を実施例によって具体的に説明する。
［実施例１］
線径が０．１８ｍｍで３０メッシュの平織りのステンレスメッシュ金網及び厚さ０．０２５ｍｍのアルミニウム箔を図２に示すような基材３１の形状に加工して２種類の基材を製作した。そして、それら基材をそれぞれ挟むように密着層としての厚さ０．０２５ｍｍのＰＦＡ樹脂フィルムを配置させ、ＰＦＡ樹脂フィルムの外側に基層としての厚さ０．２５ｍｍのＰＴＦＥ樹脂フィルムを配置させ、ＰＴＦＥ樹脂フィルムの外側に表層としての厚さ０．０２５ｍｍのＦＥＰ樹脂フィルムを配置させつつ、加熱・加圧プレスにてラミネート加工を行い、所定の形状の防水施工用役物を２種類製作した。
【００５５】
［実施例２］
次に、所定形状に加工された前述した２種類の基材をもちいて、ＰＦＡ樹脂のディスパージョンの中に通して焼成するコーティングをそれぞれに対して数回行い、それら基材の両面に厚さ０．０２５ｍｍ程度の密着層としてのＰＦＡ樹脂コーティングを施した。次にＰＴＦＥ樹脂のディスパージョン中に通して焼成するコーティングをＰＦＡ樹脂コーティングした２種類の基材に対して繰り返し行い、それらの両面に厚さ０．２５ｍｍ程度の基層としてのＰＴＦＥ樹脂コーティングを施した。そして、最後に密着層としてのＰＦＡ樹脂コーティング及び基層としてのＰＴＦＥ樹脂コーティングが施された２種類の基材をＦＥＰ樹脂のディスパージョン中に数回通して焼成し、厚さ０．０２５ｍｍ程度のＦＥＰ樹脂コーティングをそれぞれの両面に表層として施し、所定形状の防水施工用役物を２種類製作した。
【００５６】
［実施例３］
線径が０．１８ｍｍで３０メッシュの平織りのステンレスメッシュ金網及び厚さ０．０２５ｍｍのアルミニウム箔の２種類の基材をもちいて、実施例１と同様にＰＦＡ樹脂フィルム、ＰＴＦＥ樹脂フィルム及びＦＥＰ樹脂フィルムをそれぞれに対して配置させつつ、加熱・加圧プレスにてラミネート加工を行い、シート状材料を製作した。そして、シート状材料を所望形状の防水施工用役物を展開した形に切り取り、それを折り曲げて所定の形状に整えた上で、接合を要する部分においてはＰＦＡ樹脂棒をもちいて熱風にて溶接し、所望の防水施工用役物を２種類製作した。
【００５７】
［比較例１］
線径が０．１８ｍｍで３０メッシュの平織りのステンレスメッシュ金網を図２に示すような基材３１と同形状に加工して基材とし、その両面に厚さ０．２５ｍｍのＰＴＦＥ樹脂コーティング加工した防水施工用役物と、ＰＴＦＥ樹脂をＰＦＡ樹脂とした同様の防水施工用役物とを２種類製作した。
【００５８】
以上のような、実施例１〜３の防水施工用役物と比較例１の防水施工用役物を図１１に示すような下地１４に敷設された表層がフッ素樹脂で形成された防水シート１８ａ〜１８ｃ上に接合固定した。比較例１の２種類の防水施工用役物の場合においては、１００Ｖ、５５０Ｗ、３８ＫＨｚの電磁誘導加熱機を用いて、加圧力０．０５Ｎ／ｍｍ２で１５秒間加熱し、防水シート１８ｂ，１８ｃ上に溶着接合を行った。比較例１のＰＴＦＥ樹脂コーティングされた防水施工用役物の場合には、防水シートとの接合時に段差１９に形状が追従したものの、防水シート１８ｂ，１８ｃとの剥離強度は非常に弱く、２Ｎ／ｃｍ程度となり接合強度、品質ともに不十分であった。一方、比較例１のＰＦＡ樹脂コーティングされた防水施工用役物の場合には、防水シート１８ｂ，１８ｃとの接合時の電磁誘導作用による基材の発熱時にＰＦＡ樹脂がメルトフローし、部分的に基材が露出したり、ＰＦＡ樹脂コーティングの厚みが不均一になり、防水施工用役物の形状保持が困難な状況となり、防水施工用役物による水密性機能を維持することができなくなった。また、防水シート１８ｂ，１８ｃとの剥離強度は４５Ｎ／ｃｍで、破壊状況はステンレスメッシュ金網とＰＦＡ樹脂層との界面剥離となり、接合強度は十分であったが品質に関しては不十分な結果となった。このことからコーティング樹脂が１種類樹脂で形成された防水施工用役物では、十分な品質を確保することが難しいことがわかった。
【００５９】
また、実施例１〜３の６種類の防水施工用役物の場合も前述と同様に１００Ｖ、５５０Ｗ、３８ＫＨｚの電磁誘導加熱機を用いて、加圧力０．０５Ｎ／ｍｍ２で１５秒間加熱し、防水シート１８ｂ，１８ｃ上に溶着接合を行った。ステンレスメッシュ金網を基材とした実施例１〜３の３種類の防水施工用役物の場合には、防水シートとの接合時に段差１９に形状が追従し、接合状態もよく、加熱後の防水施工用役物の形態も安定しており、防水シートとの剥離強度は５７Ｎ／ｃｍで、破壊状況は防水シートの表層のフッ素樹脂（ＰＴＦＥ樹脂）の凝集破壊であり、接合強度、品質ともに十分なものであった。
【００６０】
アルミニウム箔を基材とした実施例１〜３の３種類の防水施工用役物の場合には、前述したステンレスメッシュ金網を基材とした３種類の防水施工用役物と同様な結果となった。このように実施例１〜３の防水施工用役物のように積層構造体とすることで、接合時においても防水施工用役物の厚みのバラツキが抑制され、水密性の機能を維持すると共に、防水シートとの接合強度が十分な耐久性を有したものとなる。
【００６１】
【発明の効果】
以上のように、本発明は、接合時においてもその形状を保ちつつその厚みのバラツキが抑制され、耐久性及び水密性を維持することが可能となる。
【図面の簡単な説明】
【図１】本発明の一実施の形態に係る防水施工用役物に防水シートが接合固定された状況を示す断面図である。
【図２】本発明の一実施の形態に係る防水施工用役物の概略構成を示す斜視図である。
【図３】図２に示す防水施工用役物の要部拡大断面図である。
【図４】本発明の他の実施の形態に係る防水施工用役物が適用される敷設箇所の模式図である。
【図５】図４におけるＡ部及びＢ部に適用される防水施工用役物の概略斜視図である。
【図６】図４におけるＣ部及びＤ部に適用される防水施工用役物の概略斜視図である。
【図７】本発明の他の実施の形態に係る防水施工用役物が適用される敷設箇所の模式図である。
【図８】図７に示す防水施工用役物の概略斜視図である。
【図９】図７に示す防水施工用役物の概略斜視図である。
【図１０】本発明の一実施の形態に係る防水施工用役物と防水シートとの接合状況を示す説明図であり、（ａ）は防水施工用役物と防水シートとの接合前状況を示し、（ｂ）は防水施工用役物と防水シートとが接合した状況を示すものである。
【図１１】本発明の一実施の形態に係る防水施工用役物が防水シート上に接合固定された状況を示す断面斜視図である。
【符号の説明】
１ 防水施工用役物
２ 水平フランジ
３ 垂直フランジ
５ 線材
１３ 入隅
１４ 下地
１６ 防水シート
１７ 当接部
１８ａ，１８ｂ，１８ｃ 防水シート
２０ 接着層
３１ 基材
３２ 密着層
３３ 基層
３４ 表層
６１，６２，８１，８２ 防水施工用役物
９０ 電磁誘導加熱機（加熱装置）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof construction accessory formed by coating a conductive base material with a fluororesin, a joining structure using the same, and a joining method.
[0002]
[Prior art]
When laying a waterproof sheet on a construction surface that has an entry / exit corner in a sheet waterproofing work on a flat roof surface of a building, it penetrates the entrance and exit corners and the floor slab at the intersection of the entrance and exit corner lines. A small hole always remains in a portion having curved inward and outgoing corner lines, such as a circular pipe, and a portion that cannot be waterproofed is generated only by laying a waterproof sheet. Therefore, in such a part, a part made of only a thermoplastic resin similar to the sheet material constituting the waterproof sheet according to its shape is applied to the part in advance and waterproofed using an appropriate adhesive or heat welding. A waterproof layer is formed by bonding to the sheet.
[0003]
The bonding method of the accessory and the waterproof sheet is generally performed at room temperature using a solvent-based adhesive, but the bonding method using an adhesive is caused by surface irregularities due to fiber reinforcement of the sheet material constituting the waterproof sheet. Adhesion becomes insufficient, and after applying the adhesive, it is necessary to work to bring the waterproof sheet and the accessory into close contact with each other by pressing with a roller or scissors. In addition, when the shape of the accessory is slightly different from the construction surface and does not match, the accessory is heated with a hand-held hot air machine, softened and then pressed to make the shape conform to the construction surface. The workability is not good because the waterproof sheet is bonded. However, the thermoplastic resin used for the main body has moderate flexibility and viscosity such as soft vinyl chloride resin, and is softened at a temperature of about 120 ° C. If the material thickness is about 1.5 to 2.0 mm, it is possible to match the shape to the construction surface, and it is widely used because the joining quality and water stop performance can be ensured. However, there is an odor problem due to solvent volatilization when using an adhesive.
[0004]
Here, although the fluororesin sheet reinforced with glass fiber is used as a membrane roof material, there is no application example as a waterproof sheet in rooftop waterproofing of buildings. Therefore, there is no such thing. In addition, since there is no effective material and construction method for the construction surface having the in-corner line, the outgoing corner line, the incoming corner angle, the outgoing corner angle, and the like in the membrane structure, the design shape and accommodation are limited. Although this has the characteristic that a fluororesin has high durability, it originates in difficult adhesiveness, difficult workability, difficult workability, etc.
[0005]
The fluororesin described above is not a commercially available difluorinated polyethylene resin, trifluorinated polyethylene resin, or the like, but is extremely durable PTFE (tetrafluoroethylene) resin or PFA (tetrafluoroethylene / perfluoroethylene). This refers to so-called perfluororesins composed of main chain and side chain carbon / fluorine bonds such as alkoxyethylene copolymer) resin and FEP (tetrafluoroethylene / hexafluoroethylene copolymer) resin. Specifically, the fluororesin described above is difficult to bond with an adhesive, and can be bonded only by hot melt bonding (welding). Moreover, because of its characteristics, it has a melting point as high as about 300 ° C. compared to generally used thermoplastic resins, and is difficult to melt flow. In addition, since it is hard and less flexible, it can be easily stretched even when heated. However, these characteristics have slightly different properties depending on the type of resin, and are appropriately used depending on the application. PTFE resin is used for the fluororesin sheet used as the above-mentioned membrane roof material. The hot melt bonding between the sheets is usually performed by a hot platen. However, as welding conditions at this time, a heating plate temperature of 380 ° C. and a heating time of 90 seconds are necessary, and heating is required for a long time, and a pressing force that allows the adherend surfaces of the sheets to be joined to adhere to each other is necessary. Become. Furthermore, in order to increase the reliability of bonding, it is necessary to insert a FEP resin film or FEP resin gel having a relatively good melt flow between the sheets to be adhered as a welding bonding auxiliary material. Become.
[0006]
Here, hot-melt joining using electromagnetic induction heating that improves heat generation efficiency during welding joining with a hot platen is generally known. In the case of electromagnetic induction heating, a conductive material such as a metal foil, a metal plate, or a processed product thereof is required as a heat source, and the conductive material is placed on the upper part of the sheet, the inside of the sheet, or the lower part of the sheet. Has been done. However, if a conductive material as a heat source is installed at the top or bottom of the sheet, the adherend surface cannot be directly heated. As a result, the workability is similar to that of a hot platen, and the high heat generation efficiency of electromagnetic induction heating is superior. Can't take advantage of sex. On the other hand, when a conductive material is installed between the sheet materials (between the adherend surfaces), the bonding quality is likely to be deteriorated because the adhesion with the conductive material is small.
[0007]
For example, Patent Document 1 discloses a fixing treatment for laying a waterproof sheet in which a main body is made of a polyolefin resin, which is a thermoplastic resin, and a conductive porous sheet body necessary for electromagnetic induction heating is laminated and integrated on a surface or an intermediate portion thereof. A method of welding with a waterproof sheet to be laid by electromagnetic induction heating using a tool is described. In this method, the heat generation heat efficiency of the conductive porous sheet body due to electromagnetic induction is high, the waterproof sheet and the fixing jig can be joined in a short time, and the joining work is facilitated and the workability is improved. In addition, the use of the conductive porous sheet improves the bonding quality defect due to the low adhesion of the fixing jig body to the resin. In addition, an odor or the like is not generated at the time of joining with the waterproof sheet, so that a favorable working environment is obtained.
[0008]
[Patent Document 1]
JP 2000-170327 A
[0009]
[Problems to be solved by the invention]
However, in the technique described in Patent Document 1, since the waterproof sheet laying fixing jig has the same resin layer as the entire body, it is assumed that the resin of the body is made of a fluororesin that is relatively easy to melt flow, and is electrically conductive. When a waterproof sheet is joined using a fixing jig laminated and integrated with the porous porous sheet, the resin of the main body melts at the time of joining, and the shape of the fixing jig for laying the waterproof sheet cannot be maintained. As a result, there arises a problem that the thickness of the film varies and the durability of the film itself decreases, making it difficult to maintain watertightness.
[0010]
In view of the above-described problems, the present invention provides a waterproof construction accessory that maintains its shape during bonding and maintains durability and water tightness, and a bonding structure and bonding method using the same. With the goal.
[0011]
[Means for Solving the Problems]
The waterproof construction accessory according to claim 1 of the present invention is a sheet-like base material having conductivity, a base layer that is arranged so as to sandwich the base material, and whose main component is made of a fluororesin, and It is arranged between the base layer and the base material, and is composed of a close contact layer for bringing them into close contact with each other and a fluororesin whose main component is lower in melting point than the base layer, and is heated in one or both outermost layers. And a surface layer forming an adhesive layer is laminated.
[0012]
According to such a configuration, when the substrate is induction-heated by electromagnetic induction action due to high frequency, the surface layer composed of a fluororesin in which the main component is lower than the base layer in one or both outermost layers is melted. Since it becomes an adhesive layer, the main component of the surface layer can be bonded and fixed to a waterproof sheet composed of a fluororesin, and the surface layer of the waterproofing work only melts, so the resin of the entire body is melt flow It is possible to maintain the shape of the object. Therefore, when joining the waterproof constructions or between the waterproof constructions and the waterproof sheet, variations in the thickness of the waterproof constructions are suppressed, and the durability and water tightness functions can be maintained. . Further, the presence of the base material inside the waterproof construction accessory improves the strength of the waterproof construction accessory, and the waterproof construction accessory can be fixed using an anchor material or the like on the ground. Therefore, even if a force is applied to the waterproof construction accessory in the direction of peeling from the base, it can be prevented from floating or peeling off.
[0013]
The waterproof construction accessory according to claim 2, wherein the base material is a metal woven fabric having a wire diameter of 0.1 mm to 0.5 mm and 20 to 60 mesh (0.8 mm to 2.4 mm), or a thickness. It is characterized by being formed of a metal foil of 0.01 mm to 0.1 mm.
[0014]
According to such a configuration, when the base material is a metal fabric, the wire diameter is 0.1 mm to 0.5 mm, which is reasonably thin, so that the waterproof construction accessory is deformed following the joint between the base and the waterproof sheet. Can be fixed. In other words, when fixing a waterproof construction accessory to the base, even if the shape of the base is somewhat different from the waterproof construction accessory, it can be deformed as required to follow the base and is waterproof. In the case where the waterproof construction accessory is fixed to the joint portion between the sheets, the waterproof construction accessory can be caused to follow the step at the joint portion between the waterproof sheets (step due to the thickness of the waterproof sheets). . Moreover, since the metal woven fabric is 20 to 60 mesh (0.8 mm to 2.4 mm), it is possible to prevent the resins constituting the waterproofing construction from being separated from each other with the substrate as a boundary. it can. That is, the resin which comprises the waterproof construction accessory joins in the opening part which the metal fabric of 20-60 mesh has, and it prevents that it peels on a base material.
Further, when the base material is a metal foil, the density per area is increased, and the heat generation property of the base material due to electromagnetic induction is further improved. Therefore, it becomes possible to make the metal foil within a thickness range of 0.01 mm to 0.1 mm, and in the same manner as the metal fabric, the waterproof construction accessory is followed by deformation and fixed to the joint between the base and the waterproof sheet. Can be done easily.
[0015]
In the waterproof construction accessory according to claim 3, the thickness of one side of the base layer is within a range of 0.05 mm to 0.4 mm, respectively, and the thickness of one side of the adhesion layer is 0.025 mm to 0.00. It is within the range of 05 mm.
[0016]
According to such a configuration, since the thickness of one side of the base layer arranged so as to sandwich the base material is within the range of 0.05 mm to 0.4 mm, the shape followability to the base of the waterproof construction accessory is ensured. However, the durability of the waterproof construction accessory is improved. Moreover, since the thickness of one side of the adhesion layer is within a range of 0.025 mm to 0.05 mm, the adhesion between the substrate and the base layer is achieved while stabilizing the position of the substrate when the substrate is heated by electromagnetic induction. Sex can be secured.
[0017]
The joint structure of the waterproof construction accessory according to claim 4 is a sheet-like base material having conductivity, a base layer that is arranged so as to sandwich the base material, and whose main component is made of a fluororesin, and It is arranged between the base layer and the base material, and is composed of a close contact layer for bringing them into close contact with each other and a fluororesin whose main component is lower in melting point than the base layer, and is heated in one or both outermost layers. The contact portion between the waterproof construction accessory formed by laminating the surface layer forming the adhesive layer and the waterproof sheet whose surface layer is made of a fluororesin, or the contact between the waterproof construction features The part is melted and integrated by heating to form an adhesive layer.
[0018]
According to such a configuration, when the base material is induction-heated by high frequency electromagnetic induction action, the contact portion between the waterproof construction features or the contact portion between the waterproof construction feature and the waterproof sheet is melted and integrated. Since the adhesive layer is formed in such a manner, they can be bonded and fixed. Therefore, it is possible to join the waterproof constructions together, or to join and fix the waterproof constructions and the waterproof sheet.
[0019]
The waterproof construction accessory joining method according to claim 5 is a sheet-like base material having conductivity, a base layer that is arranged so as to sandwich the base material, and whose main component is made of a fluororesin, and It is arranged between the base layer and the base material, and is composed of a close contact layer for bringing them into close contact with each other and a fluororesin whose main component is lower in melting point than the base layer, and is heated in one or both outermost layers. A part for waterproof construction formed by laminating a surface layer forming an adhesive layer with a waterproof sheet whose surface layer is composed of a fluororesin, or the above-mentioned waterproof construction parts are overlapped The combined portions are melted and bonded by a heating device to both surface layers in contact with the overlapped portions.
[0020]
According to such a structure, both the surface layer which the part which overlap | superposed the part for waterproof construction and the waterproof sheet, or the part which overlap | superposed the part for waterproof construction touched are fuse | melted with a heating apparatus, and are adhere | attached. Therefore, they can be joined and fixed. Therefore, it is possible to join the waterproof constructions together, or to join and fix the waterproof constructions and the waterproof sheet.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a situation where a waterproof sheet is bonded and fixed to a waterproof construction accessory according to an embodiment of the present invention. FIG. 2 is a perspective view showing a schematic configuration of a waterproof construction accessory according to an embodiment of the present invention. FIG. 3 is an enlarged cross-sectional view of a main part of the waterproof construction accessory shown in FIG.
[0022]
As shown in FIG. 1, a waterproof construction accessory 1 includes a bottom body 11 that is a floor surface of a structure to be waterproofed, such as a roof, a side body 12 that rises from the bottom body 11, a bottom body 11, and a side body 12. Are fixed with an anchor material 15 such as a screw to a base 14 composed of a corner line 13 formed at a position where the two meet. A waterproof sheet 16 is disposed and fixed on the waterproof construction accessory 1.
[0023]
The waterproof sheet 16 is a laminated structure composed of a sheet material 16a formed of glass fiber as shown in FIG. 1 and a surface layer 16b formed so as to sandwich the sheet material 16a. The sheet material 16a of the waterproof sheet 16 in the present embodiment is formed of glass fiber, but is not particularly limited, and may be a sheet material made of other fibers or a metal sheet material. The surface layer 16b is made of FEP resin, which is the same material as the surface layer 34 of the waterproof construction accessory 1 described later, and has good compatibility when heated and melted when joining the waterproof construction accessory 1 Although it is preferable, it may be composed of other fluororesins.
[0024]
As shown in FIG. 2, the waterproof construction accessory 1 has a horizontal flange 2 and a vertical flange 3, one end portions of the horizontal flange 2 and the vertical flange 3 are connected and integrated, and the cross section is L-shaped. It is comprised so that. In addition, the anchor material 15 mentioned above is penetrated to the taper-shaped through-hole 10 formed 2 each in the horizontal flange 2 and the vertical flange 3, and the waterproof construction accessory 1 is being fixed to the foundation | substrate 14. FIG.
[0025]
Further, as shown in FIG. 3, the flanges 2 and 3 are made of a conductive sheet-like base material 31 and a base layer 33 which is disposed so as to sandwich the base material 31 and whose main component is made of PTFE resin. The base layer 33 and the base layer 33 are disposed between the base 31 and the base layer 33, and the base layer 33 and the base 31 are brought into close contact with each other. The outer layer 34 is arranged in an outer layer, and a surface layer 34 whose main component is made of FEP resin is laminated and integrated.
[0026]
As shown in FIGS. 2 and 3, the base material 31 is a sheet-like metal woven fabric configured to intersect the stainless steel wire 5 as warp and weft, but is not particularly limited. In the present embodiment, stainless steel is applied as the material of the base material 31 due to corrosion resistance and heat generation. However, heat is generated by electromagnetic induction such as steel, aluminum, aluminum alloy, hot dip galvanized steel, hot dip galvanized steel, etc. Any conductive metal material may be used.
[0027]
Moreover, the wire diameter of the wire 5 of the base material 31 should just be in the range of 0.1 mm-0.5 mm, and if the wire diameter is less than 0.1 mm, the base | substrate from which the shape is a little different from the waterproof construction accessory 1 When the waterproof construction accessory 1 is joined to the portion where the step 19 of the joint portion between the waterproof sheets 18a to 18c exists, as will be described later, There is a possibility that 31 wires 5 may be cut. Moreover, when the base material 31 is induction-heated as described later, the surface layer 34 is melted and the waterproof sheet 16 and the waterproof construction accessory 1 are bonded and fixed, the degree of melting the surface layer 34 is insufficient. It is difficult to ensure sufficient bonding strength. On the other hand, if the wire diameter of the base material 31 is 0.5 mm or more, a waterproof sheet is used when laying the waterproof construction accessory 1 by following a base slightly different in shape from the waterproof construction accessory 1 or as described later. When the waterproof construction accessory 1 is joined to the portion where the step 19 of the joint portion between the 18a to 18c exists, the strength of the waterproof construction accessory 1 becomes too large, and the base and the waterproof sheets 18a to 18c It is difficult to follow the step 19, which is not preferable because there is a possibility of causing floating or rattling.
[0028]
Further, since the wire diameter of the wire 5 is 0.1 mm to 0.5 mm, the wire 5 is not likely to appear convex on the surface of the waterproof construction accessory 1, and the surface of the waterproof construction accessory 1 is relatively Since it becomes smooth, joining with the waterproof sheet 16 becomes favorable. That is, when the base material 31 generates heat due to the electromagnetic induction action and the surface layer 34 of the waterproof construction accessory 1 is heated and melted, the wire 5 is not easily projected on the surface of the waterproof construction accessory 1. Since the joined portion (contact portion) with the waterproof sheet 16 is in a relatively smooth state, the joined state is improved. Moreover, since the wire diameter of the wire 5 is 0.1 mm-0.5 mm and is moderately thin, the waterproof construction accessory 1 can be followed and deformed and fixed to the joint between the base and the waterproof sheet. In other words, when fixing the waterproof construction accessory 1 to the base, even if the base shape is slightly different from the waterproof construction accessory 1, it can be deformed as required to follow the base. Even when the waterproof construction accessory 1 is fixed to the joint between the waterproof sheets 18a to 18c as will be described later, the step (the step due to the thickness of the waterproof sheets) 19 at the joint between the waterproof sheets 18a to 18c. The waterproof construction accessory 1 can be deformed to follow.
[0029]
Moreover, as a weaving method of the metal fabric of the base material 31, either a twill weave or a plain weave can be applied. A mesh which is an opening 6 formed between the wire materials 5 of the base material 31 is shown in FIG. The adhesion layers 32 of the two flanges 2 and 3 shown are connected and integrated. This mesh is preferably 20 to 60 mesh (0.8 mm to 2.4 mm), and if it is less than 20 mesh (0.8 mm), the base material 31 of both flanges 2 and 3 and the adhesion layer 32 sandwiching the base material 31 There is a possibility that the bonding strength is insufficient and the substrate 31 peels off. On the other hand, if it is 60 mesh (2.4 mm) or more, the base material 31 is induction-heated as will be described later, and the surface layer 34 is melted to open and close the waterproof sheet 16 and the waterproof construction accessory 1. The degree to which the surface layer 34 of the portion overlapping the portion 6 is melted is insufficient, and it becomes difficult to secure the bonding strength between the waterproof sheet 16 and the waterproof construction accessory 1.
[0030]
Thus, by making a metal fabric into the range of 20-60 meshes, it can prevent that resin which comprises the waterproofing accessory 1 peels on the base material 31 as a boundary. That is, the close contact layers 32 constituting the waterproof construction accessory 1 are connected and integrated at the opening 6 of the metal fabric of 20 to 60 mesh, and are prevented from peeling off with the substrate 31 as a boundary.
[0031]
In addition, a sheet-like metal foil made of the same material as the metal fabric described above can be applied to the base material 31. In the case of a metal foil, the density per area is higher than that of a metal fabric, and the exothermic property of the base material due to electromagnetic induction is further improved. Further, the thickness of the metal foil is changed according to need at the step 19 of the joint portion between the waterproof sheets 18a to 18c and the base material slightly different from the waterproof construction accessory as in the metal fabric described above. The range of 0.01 mm to 0.1 mm is suitable so that it can be easily performed. If the thickness of the metal foil is less than 0.01 mm, the step 19 at the joint portion between the waterproof sheets 18a to 18c is used when the waterproof construction accessory is laid down by following a base slightly different in shape from the waterproof construction accessory. When joining a waterproof construction accessory to a portion where there is a mark, there is a possibility that the base material of the metal foil is damaged and the durability of the waterproof construction accessory is lowered. On the other hand, if the thickness of the metal foil is 0.1 mm or more, when laying the waterproof construction accessory by following the groundwork slightly different in shape from the waterproof construction accessory or the joint between the waterproof sheets 18a to 18c When joining the waterproof construction accessory to the portion where the step 19 exists, the strength of the waterproof construction accessory becomes too large, and it becomes difficult to follow the step 19 between the base and the waterproof sheets 18a to 18c, This is not preferable because it may cause floating and rattling.
[0032]
Moreover, since the metal woven fabric and metal foil mentioned above are applied to the base material 31, the thickness becomes the range of 0.01 mm-1.0 mm. When the metal fabric is applied to the base material 31, when the wire diameter of the wire 5 is 0.5 mm, the wire 5 intersects and overlaps, so that the thickness of the metal fabric is 1.0 mm at the maximum. By using such a metal woven fabric or metal foil for the base material 31, it becomes possible to follow and deform when fixing the waterproof construction accessory 1 to the base 14, and the shape of the base 14 is slightly Even if it is different from the waterproof construction accessory 1, it can be deformed as necessary to follow the bottom body 11 and the side body 12 of the base 14 and the thickness of the waterproof construction accessory 1. Further, the protruding portion of the portion where the waterproof construction accessory 1 and the waterproof sheet 16 are bonded and fixed is not so noticeable, and the aesthetic appearance after the waterproof sheet 16 is laid is improved.
[0033]
In the present embodiment, a PTFE resin having a melting point of 327 ° C. is applied to the base layer 33, but a PFA resin having a melting point of 310 ° C. or a modified resin thereof can be applied. This PTFE resin is applied because of its low melt flow property in terms of thermal characteristics and excellent shape stability during electromagnetic induction heating. The thickness of one side of the base layer 33 is in the range of 0.05 mm to 0.4 mm, respectively, so that about 0.05 mm to 0.2 mm can be covered from the surface of the metal fabric of the base material 31. If the thickness of the base layer 33 is less than 0.05 mm, there is a possibility that the shape of the waterproof construction accessory 1 cannot be maintained when the base material 31 of the waterproof construction accessory 1 is heated by electromagnetic induction. That is, when the base layer 33 is softened when the base material 31 generates heat due to electromagnetic induction, the thickness of the base layer 33 is too thin, making it difficult to maintain the shape of the waterproof construction accessory 1. The durability of the object 1 is reduced. On the other hand, if the thickness of the base layer 33 is 0.4 mm or more, it takes time to melt the surface layer 34 when the base material 31 of the waterproof construction accessory 1 is heated by electromagnetic induction, and the waterproof construction accessory 1 And the workability of joining the waterproof sheet 16 is reduced. Thus, since the thickness of the one side of the base layer 33 is in the range of 0.05 mm to 0.4 mm, respectively, the waterproof construction accessory 1 while ensuring the shape followability of the waterproof construction accessory 1 with respect to the base 14. The durability is improved.
[0034]
In this embodiment, a PFA resin having a melting point of 310 ° C. is applied to the adhesion layer 32, but an FEP resin having a melting point of 260 ° C. or a modified resin thereof can be applied. This PFA resin has a higher melting point than that of the FEP resin, and when the FEP resin is applied to the surface layer 34 as will be described later, it is possible to increase the heat efficiency of welding to be bonded to the waterproof sheet 16 or the like. . The thickness of one side of the adhesion layer 32 is set to 0. 0 to ensure the adhesion between the base material 31 and the base layer 33 while stabilizing the position of the base material 31 when the base material 31 generates heat due to electromagnetic induction. The range is 025 mm to 0.05 mm. If the thickness of the adhesion layer 32 is less than 0.025 mm, the bonding force for bringing the base material 31 and the base layer 33 into close contact with each other is not preferable. On the other hand, if the thickness of the adhesion layer 32 is 0.05 mm or more, the position of the substrate 31 may move greatly when the adhesion layer 32 melts due to heat generation of the substrate 31 due to electromagnetic induction. The position stability of the base material 31 is not preferable.
[0035]
In the present embodiment, FEP resin having a melting point of 260 ° C. is applied to the surface layer 34, but PFA resin or a modified resin thereof can be used. That is, any fluororesin having a melting point lower than that of the base layer 33 is applicable, and the temperature difference between the melting points of the surface layer 34 and the base layer 33 is 30 ° C. or more, preferably about 50 ° C. Such a temperature difference between the melting points can melt only the surface layer 34 without melting the base layer 33 when the base material 31 generates heat due to electromagnetic induction, and can maintain the shape retention property of the waterproof construction accessory 1 and This is because it is preferable for ensuring watertightness.
[0036]
Further, since the thickness of the surface layer 34 depends on the unevenness of the mating joint surface to be joined to the waterproof construction accessory 1, the amount sufficient for the surface layer 34 melt-flowed at the time of joining to fill the unevenness of the joint surface and join. When the metal foil is applied to the base material 31, the thickness of the surface layer 34 is about 0.01 mm to 0.025 mm. When the metal fabric is applied to the base material 31, the thickness of the surface layer 34 is 0.00. It is about 025 mm to 0.05 mm. In addition, it is desirable that the base layer 33 and the surface layer 34 in the waterproof construction accessory 1 have an inclined structure from the side surface that enables bonding without deforming the base layer 33. Specifically, it can be realized by a dipping method or a laminating method in a combination of a PTFE resin having a low melt flow and an FEP resin having a high melt flow.
[0037]
In addition to the PTFE resin, PFA resin, and FEP resin described above, the fluororesin constituting the waterproof construction accessory 1 described above is ETFE (tetrafluoroethylene / ethylene copolymer) resin, PVDF (vinylidene fluoride). The resin, PVF (vinyl fluoride) resin, CTFE (chlorotrifluoroethylene) resin, ECTFE (ethylene chlorotrifluoroethylene) resin, and other resins can be appropriately selected and applied.
[0038]
In addition, the shape of the waterproof construction accessory 1 described above is an L-shape along the bottom surface body 11 and the side surface body 12 that form the entering corner line 13 in the present embodiment. As long as the adhesion layer 32, the base layer 33, and the surface layer 34 are laminated and integrated in order toward the outside, any shape may be used, and there is no particular limitation. Moreover, although the surface layer 34 is formed in the outermost layer of both sides, you may form in only one side. That is, if the outermost layer on the side where the waterproof construction accessory and the waterproof sheet are in contact with each other is the surface layer 34, the waterproof construction accessory 1 and the waterproof sheet 16 described later are joined and fixed in the same manner. Thus, the waterproof construction accessory 1 in which the surface layer 34 is formed on the outermost layers on both sides has the same effect.
[0039]
Next, a waterproof construction accessory 61, 62, 81, 82 having a shape different from that of the waterproof construction accessory 1 will be described below. As shown in FIG. 4, the entrance angle 50 </ b> B of the B portion and the exit angle 50 </ b> C of the C portion formed by the bottom surface body 51 serving as the bottom surface of each floor and the side surface body 52 rising from the bottom surface body 51, and the side surfaces 52 are In the case of waterproofing the protruding corner angle 50A of the A portion and the entering corner angle 50D of the D portion formed by the side body 52 and the curved portion 53 positioned at the upper portion of the side body 52 at the upper part of the meeting position, Waterproof construction accessories 61 and 62 shown in FIG. 5 and FIG. 6 having a shape suitable for them are used. The waterproof construction accessory 61 shown in FIG. 5 is applied to the outgoing corner angle 50A and the incoming corner angle 50B shown in FIG. 4, and the outgoing corner angle 50C and the incoming corner angle 50D shown in FIG. A waterproof construction accessory 62 is applied.
[0040]
The waterproof construction accessory 61 shown in FIG. 5 is formed in a shape along the bottom body 51, the side body 52, and the curved portion 53 that form the outgoing corner angle 50A and the incoming corner angle 50B. The portion has a point 61a that overlaps with the outgoing corner angle 50A and the incoming corner angle 50B. Further, the waterproof construction accessory 61 has a base material 31, an adhesion layer 32, a base layer 33, and a surface layer 34 that have the same cross-sectional structure as the waterproof construction accessory 1 described above. That is, the outermost layer on both sides of the waterproof construction accessory 61 is formed with the surface layer 34. When the waterproof construction accessory 61 is disposed at the corner 50A, the point of the waterproof construction accessory 61 It arrange | positions so that 61a may become convex toward the outer side. On the other hand, in the case where the waterproof construction accessory 61 is arranged at the corner 50B, the waterproof construction accessory 61 is arranged so that the point 61a of the waterproof construction accessory 61 protrudes inward. That is, the waterproof construction accessory 61 placed at the corner 50A is turned over and placed at the corner 50B.
[0041]
Further, the waterproof construction accessory 62 shown in FIG. 6 is formed in a shape along the bottom body 51, the side body 52, and the curved portion 53 that form the projected corner angle 50C and the entering corner angle 50D. A point 62a that overlaps the exit corner angle 50C and the entry corner angle 50D is provided at the substantially central portion. Further, the waterproof construction accessory 62 has a base material 31, an adhesion layer 32, a base layer 33, and a surface layer 34 that have the same cross-sectional structure as the waterproof construction accessory 1 described above. That is, the surface layer 34 is also formed on the outermost layers on both sides of the waterproof construction accessory 62, and when the waterproof construction accessory 62 is disposed at the corner 50C and the corner 50D, the waterproof construction described above is used. Similarly to the utility 61, the waterproof construction accessory 62 is arranged in a suitable direction.
[0042]
As described above, by applying the waterproof construction accessories 61 and 62 having the shapes shown in FIGS. 5 and 6, it is possible to waterproof the entrance / exit corners 50 </ b> A to 50 </ b> D that cannot be waterproofed only by the waterproof sheet. In addition, since the surface layer 34 is formed on both sides of the waterproof construction accessory 61, 62, the waterproof sheet is arranged on the waterproof sheet from the A portion formed by laying the waterproof sheet to the entrance / exit corner portion of the D portion. The waterproof sheet and the waterproof construction accessories 61 and 62 can be joined and fixed. Moreover, since the surface layer 34 is formed in the outermost layer on both sides, the waterproof construction accessory 1 is also disposed on the waterproof sheet 16 in the corner portion formed by laying the waterproof sheet 16. 16 and the waterproof construction accessory 1 can be bonded and fixed.
[0043]
Further, in the case where the cylindrical structure 72 is formed in a convex shape from the bottom surface body 71 as shown in FIG. 7, it conforms to a corner line 74 formed by the peripheral wall 73 and the bottom surface body 71 of the structure 72. What is necessary is just to use the waterproof construction accessories 81 and 82 of a shape as shown in FIG.8 and FIG.9. 8 and 9 cover parts of the peripheral wall 73 and the bottom body 71 of the structure 72 while covering a part of the circular inset corner line 74 formed by them. It has a base 31, an adhesion layer 32, a base layer 33, and a surface layer 34 that are formed in a covering shape and have a cross-sectional structure similar to that of the waterproof construction accessory 1 described above. Further, the waterproof construction accessory 81 shown in FIG. 8 has substantially the same shape as the waterproof construction accessory 82 shown in FIG. Is getting longer.
[0044]
As shown in FIG. 7, when waterproofing the corner line 74 formed by the peripheral wall 73 and the bottom surface body 71 of the structure 72, first, the peripheral wall 73 and the bottom surface body 71 are covered with the waterproof construction accessory 81 having a long peripheral length. While covering a part, the most part of the corner line is covered, and the corner line 74 not covered with the waterproof construction tool 81 is covered with the waterproof construction tool 82, and its end is for waterproof construction. Superimpose on the end of the accessory 81. And similarly to the joining method of the waterproof sheet 16 and the waterproof construction accessory 1 which will be described later, the electromagnetic induction heater (heating device) is arranged from the outside of the portion where the waterproof construction accessories 81 and 82 overlap each other. While the substrate 31 is heated by electromagnetic induction, 0.02 to 0.1 N / mm 2 Apply moderate pressure. After the induction heating of the base material 31 is started, both surface layers 34 of the abutting portions 83 (portions where the waterproof construction features 81 and 82 are in contact with each other) of the waterproof construction features 81 and 82 are formed in about 10 seconds. The waterproof construction accessories 81 and 82 are joined and fixed at the contact portion 83 while melt-flowing and forming an adhesive layer. With such a joint structure between the waterproofing works 81 and 82, it is possible to waterproof the circular corner line 74 that cannot be waterproofed only by the waterproof sheet 16 as described above. In addition, since the waterproof construction accessories 1, 61, 62 also have the same laminated structure, the waterproof construction accessories can be joined and fixed in the same manner.
[0045]
Subsequently, a joining method and a joining structure for joining and fixing the waterproof sheet 16 using the waterproof construction accessory 1 described above will be described below. In addition, since the waterproof construction accessory 61, 62, 81, 82 described above has the same cross-sectional structure as the waterproof construction accessory 1, it can be joined and fixed to the waterproof sheet 16 in the same manner. Therefore, detailed description is omitted.
[0046]
As shown in FIG. 1, a waterproof construction is provided on a corner line 13 formed at a position where a bottom surface body 11 serving as a floor surface such as a rooftop to be waterproofed of a structure and a side surface body 12 rising from the bottom surface body 11 meet. The object 1 is placed and fixed to the base 14. That is, the horizontal flange 2 and the bottom body 11 of the waterproof construction accessory 1 are penetrated through the through-hole 10 of the horizontal flange 2 using an anchor material 15 such as a screw, an open leg nail, a curl plug, etc. In addition to fixing to the bottom body 11, the vertical flange 3 of the waterproof construction accessory 1 and the side body 12 of the base 14 are similarly penetrated and fixed to the through hole 10 using the anchor material 15.
[0047]
Next, the waterproof construction accessory 1 fixed to the base 14 is covered with the waterproof sheet 16 and arranged along the bottom body 11 and the side body 12. And as shown to Fig.10 (a), while arrange | positioning the electromagnetic induction heater (heating device) 90 in the surface side of the waterproof sheet 16 of the part with which the waterproof sheet 16 and the waterproof construction accessory 1 overlap, FIG. As shown in b), the irradiation surface 91 of the electromagnetic induction heater 90 is brought into contact, preferably 0.02 to 0.1 N / mm. 2 Irradiate with high frequency while applying a certain amount of pressure. At this time, high frequency may be irradiated while moving the irradiation surface 91 of the electromagnetic induction heater 90 on the surface of the waterproof sheet 16 where the waterproof sheet 16 and the waterproof construction accessory 1 overlap.
[0048]
Then, due to this high frequency, an overcurrent is generated in the base material 31 having conductivity, the base material 31 of the waterproof construction accessory 1 generates heat (that is, heat generation due to electromagnetic induction action), and the surface layer 16b of the waterproof sheet 16 is waterproofed. Both surface layers 16b and 34 are fused and integrated into the adhesive layer 20 at the contact portion 17 where the surface layer 34 of the construction accessory 1 faces and contacts, and is 0.02 to 0.1 N / mm. 2 The waterproof construction accessory 1 and the waterproof sheet 16 are joined and fixed by pressurization. Thus, a joint structure between the waterproof construction accessory 1 and the waterproof sheet 16 is formed. In addition, in order to soften the adhesion layer 32 and the base layer 33 whose melting point is higher than that of the surface layer 34 due to heat generation of the base material 31, but the shape of the base 14 is slightly different from the shape of the waterproof construction accessory 1, The waterproof construction accessory 1 follows the base 14, and both surfaces of the waterproof sheet 16 and the contact portion 17 of the waterproof construction accessory 1 are in close contact with each other. In this way, the waterproof construction accessory 1 fixed to the base 14 and the waterproof sheet 16 can be bonded and fixed.
[0049]
Subsequently, a joining method and a joining structure for fixing the waterproof construction accessory 1 on the waterproof sheets 18a to 18c laid on the base 14 will be described below.
[0050]
FIG. 11 is a cross-sectional perspective view showing a situation where the waterproof construction accessory in the present embodiment is bonded and fixed onto the waterproof sheet. As shown in FIG. 11, the waterproof sheet 18 a is laid along the bottom surface body 11 of the base 14 described above, and the waterproof sheet 18 b is aligned along the side surface body 12 while overlapping the end along the corner line 13 of the waterproof sheet 18 a. Is laid. Further, a waterproof sheet 18c is laid on the waterproof sheet 18b so as to overlap a part of the waterproof sheet 18b, and a waterproof construction accessory is provided on the waterproof sheets 18b and 18c so as to cover the step 19 depending on the thickness of the waterproof sheet 18c. 1 is arranged. The material and the cross-sectional structure of the waterproof sheets 18a, 18b, and 18c are the same as those of the waterproof sheet 16 described above.
[0051]
The method of joining the waterproof construction accessory 1 arranged in this way to the waterproof sheets 18b and 18c can be performed by the same joining method as the joining method of the waterproof sheet 16 and the waterproof construction accessory 1 described above. . That is, the electromagnetic induction heater 90 described above is arranged on the surface side of the waterproof construction accessory 1 and its irradiation surface 91 is brought into contact with the surface, and 0.02 to 0.1 N / mm 2 Irradiate with high frequency while applying a certain amount of pressure. Then, an overcurrent is generated in the base material 31 having conductivity due to the high frequency, the base material 31 of the waterproof construction accessory 1 generates heat, and the surface layers of the waterproof sheets 18b and 18c and the surface layer 34 of the waterproof construction accessory 1 are formed. Both surface layers of the abutting portions that are in contact with each other are fused and integrated to form an adhesive layer, 0.02-0.1 N / mm 2 The waterproof construction accessory 1 and the waterproof sheets 18b and 18c are joined and fixed by the pressurization. In this way, a joined structure is formed in which the waterproof construction accessory 1 is joined to the waterproof sheets 18a to 18c.
[0052]
Further, since the adhesive layer 32 and the base layer 33 having a melting point higher than that of the surface layer 34 are not melted due to the heat generation of the base material 31, the waterproof construction accessory 1 follows and deforms the step 19 due to the waterproof sheet 18c, and the waterproof sheet 18b. , 18c and both surfaces of the contact portion between the waterproof construction accessory 1 are in close contact with each other. In this manner, the waterproof construction accessory 1 can be bonded and fixed to the waterproof sheets 18 a to 18 c laid on the base 14. Further, the above-described waterproof construction accessories 61, 62, 81, 82 can be similarly bonded and fixed onto the waterproof sheet.
[0053]
As described above, according to the waterproof construction accessory 1, 61, 62, 81, 82, when the base material 31 is induction-heated by electromagnetic induction action by high frequency, the surface layer 34 melts and becomes an adhesive layer. Therefore, the main component of the surface layer can be bonded and fixed to the waterproof sheet composed of the fluororesin, and the surface layer 34 of the waterproof construction accessory 1, 61, 62, 81, 82 only melts. It is possible to maintain the shape of the whole resin rather than the one that melt-flows. Therefore, when joining the waterproof constructions or between the waterproof constructions and the waterproof sheet, variations in the thickness of the waterproof constructions are suppressed, and the durability and water tightness functions can be maintained. . In addition, the presence of the base material 31 inside the waterproof construction accessory 1, 61, 62, 81, 82 improves the strength thereof, and the waterproof construction accessory using an anchor material or the like for the base 14 is used. Can be fixed. Therefore, even if a force is applied to the waterproof construction accessory in the direction of peeling from the base 14, it can be prevented from floating or peeling off.
[0054]
【Example】
Next, the present invention will be specifically described with reference to examples.
[Example 1]
Two types of base materials were manufactured by processing a plain mesh stainless mesh wire mesh of 30 mesh with a wire diameter of 0.18 mm and an aluminum foil having a thickness of 0.025 mm into the shape of the base material 31 as shown in FIG. Then, a PFA resin film having a thickness of 0.025 mm as an adhesion layer is disposed so as to sandwich the respective substrates, and a PTFE resin film having a thickness of 0.25 mm as a base layer is disposed outside the PFA resin film. While placing a FEP resin film having a thickness of 0.025 mm as a surface layer on the outer side of the resin film, lamination was performed by a heating / pressing press to produce two types of waterproof construction objects having a predetermined shape.
[0055]
[Example 2]
Next, using the above-mentioned two types of base materials processed into a predetermined shape, coating is performed several times for each through a PFA resin dispersion, and the thicknesses on both sides of the base materials are determined. A PFA resin coating as an adhesion layer of about 0.025 mm was applied. Next, two types of base materials coated with PFA resin were repeatedly subjected to coating that was baked through a dispersion of PTFE resin, and PTFE resin coating as a base layer having a thickness of about 0.25 mm was applied to both surfaces thereof. . Finally, the two types of base materials coated with the PFA resin coating as the adhesion layer and the PTFE resin coating as the base layer were fired by passing several times through the dispersion of the FEP resin to obtain a FEP having a thickness of about 0.025 mm. Resin coating was applied as a surface layer on each side, and two types of waterproof constructions with a predetermined shape were produced.
[0056]
[Example 3]
A PFA resin film, a PTFE resin film, and an FEP resin were used in the same manner as in Example 1 using two types of base materials, a plain mesh stainless mesh wire mesh with a wire diameter of 0.18 mm and an aluminum foil with a thickness of 0.025 mm. Laminating was performed with a heating / pressing press while the film was placed on each of them, and a sheet-like material was produced. Then, cut the sheet-like material into a developed shape of the waterproof construction object of the desired shape, bend it and arrange it into a predetermined shape, and weld it with hot air using a PFA resin rod in the part that needs to be joined Then, two types of desired waterproofing constructions were produced.
[0057]
[Comparative Example 1]
A plain mesh stainless mesh metal mesh with a wire diameter of 0.18 mm and 30 mesh is processed into the same shape as the base material 31 as shown in FIG. 2 to form a base material, and a PTFE resin coating process with a thickness of 0.25 mm is performed on both sides thereof. Two types of waterproof constructions and similar waterproof constructions using PTFE resin as PFA resin were produced.
[0058]
The waterproof sheet 18a in which the surface layer laid on the base 14 as shown in FIG. 11 is formed of the fluororesin with the waterproof construction accessory of Examples 1 to 3 and the waterproof construction accessory of Comparative Example 1 as described above. Bonded and fixed on ~ 18c. In the case of the two types of waterproof construction objects of Comparative Example 1, using a 100 V, 550 W, 38 KHz electromagnetic induction heater, the applied pressure 0.05 N / mm 2 Was heated for 15 seconds, and welded onto the waterproof sheets 18b and 18c. In the case of the waterproof construction accessory coated with PTFE resin of Comparative Example 1, although the shape followed the step 19 at the time of joining with the waterproof sheet, the peel strength from the waterproof sheets 18b and 18c was very weak and 2N / The joint strength and quality were insufficient. On the other hand, in the case of the waterproof construction accessory coated with the PFA resin of Comparative Example 1, the PFA resin melt-flows during the heat generation of the base material due to electromagnetic induction during the joining to the waterproof sheets 18b and 18c. The base material was exposed and the thickness of the PFA resin coating became non-uniform, making it difficult to maintain the shape of the waterproof construction accessory, making it impossible to maintain the watertight function of the waterproof construction accessory. Further, the peel strength from the waterproof sheets 18b and 18c was 45 N / cm, and the breaking condition was interface peeling between the stainless mesh wire mesh and the PFA resin layer, and the joint strength was sufficient, but the quality was insufficient. It was. From this, it was found that it is difficult to secure sufficient quality in the waterproof construction accessory in which the coating resin is formed of one kind of resin.
[0059]
In addition, in the case of the six types of waterproof construction accessories of Examples 1 to 3, using an electromagnetic induction heater of 100 V, 550 W, and 38 KHz as described above, the applied pressure is 0.05 N / mm. 2 Was heated for 15 seconds, and welded onto the waterproof sheets 18b and 18c. In the case of the three types of waterproof construction accessories of Examples 1 to 3 using a stainless steel mesh wire as a base material, the shape follows the step 19 when bonded to the waterproof sheet, the bonded state is good, and the waterproofing after heating The form of the construction accessory is stable, the peel strength from the waterproof sheet is 57 N / cm, and the breaking condition is the cohesive failure of the fluororesin (PTFE resin) on the surface layer of the waterproof sheet, and both the bonding strength and quality are sufficient It was something.
[0060]
In the case of the three types of waterproofing constructions of Examples 1 to 3 using an aluminum foil as a base material, the same results as the above-described three types of waterproofing constructions using a stainless mesh wire mesh as a base material are obtained. It was. Thus, by making it a laminated structure like the waterproof construction accessory of Examples 1 to 3, variation in the thickness of the waterproof construction accessory is suppressed even during joining, and the watertight function is maintained. The bonding strength with the waterproof sheet has sufficient durability.
[0061]
【The invention's effect】
As described above, according to the present invention, variation in thickness is suppressed while maintaining the shape even during bonding, and durability and water tightness can be maintained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state in which a waterproof sheet is bonded and fixed to a waterproof construction accessory according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a schematic configuration of a waterproof construction accessory according to an embodiment of the present invention.
FIG. 3 is an enlarged cross-sectional view of a main part of the waterproof construction accessory shown in FIG. 2;
FIG. 4 is a schematic view of a laying place to which a waterproof construction accessory according to another embodiment of the present invention is applied.
5 is a schematic perspective view of a waterproof construction accessory applied to part A and part B in FIG. 4;
6 is a schematic perspective view of a waterproof construction accessory applied to part C and part D in FIG. 4;
FIG. 7 is a schematic view of a laying place to which a waterproof construction accessory according to another embodiment of the present invention is applied.
8 is a schematic perspective view of the waterproof construction accessory shown in FIG. 7. FIG.
9 is a schematic perspective view of the waterproof construction accessory shown in FIG. 7. FIG.
FIG. 10 is an explanatory view showing a joining state between a waterproof construction accessory and a waterproof sheet according to an embodiment of the present invention, and (a) shows a situation before joining the waterproof construction accessory and the waterproof sheet. (B) shows the situation where the waterproof construction accessory and the waterproof sheet are joined.
FIG. 11 is a cross-sectional perspective view showing a state in which a waterproof construction accessory according to an embodiment of the present invention is bonded and fixed onto a waterproof sheet.
[Explanation of symbols]
1 Waterproofing construction
2 Horizontal flange
3 Vertical flange
5 Wire
13 corner
14 Groundwork
16 Tarpaulin
17 Contact part
18a, 18b, 18c tarpaulin
20 Adhesive layer
31 Substrate
32 Adhesive layer
33 base layer
34 Surface
61, 62, 81, 82 Waterproof construction
90 Electromagnetic induction heater (heating device)

Claims (5)

導電性を有するシート状の基材と、
前記基材を挟むように配置され、主成分がフッ素樹脂で構成された基層と、
前記基層と前記基材との間に配置されるとともに、それらを密着させる密着層と、
主成分が前記基層より融点が低いフッ素樹脂で構成され、一方又は両方の最外層にあって加熱されることで接着層を形成する表層とが積層して構成されていることを特徴とする防水施工用役物。A sheet-like base material having conductivity;
A base layer disposed so as to sandwich the base material, the main component of which is composed of a fluororesin;
An adhesion layer that is disposed between the base layer and the base material and closely contacts them,
Waterproofing characterized in that the main component is composed of a fluororesin having a melting point lower than that of the base layer, and is formed by laminating one or both outermost layers and a surface layer that forms an adhesive layer by being heated. Construction material. 前記基材が、線径が０．１ｍｍ〜０．５ｍｍで且つ２０〜６０メッシュ（０．８ｍｍ〜２．４ｍｍ）の金属織物、又は厚さ０．０１ｍｍ〜０．１ｍｍの金属箔で形成されていることを特徴とする請求項１に記載の防水施工用役物。The substrate is formed of a metal fabric having a wire diameter of 0.1 mm to 0.5 mm and 20 to 60 mesh (0.8 mm to 2.4 mm), or a metal foil having a thickness of 0.01 mm to 0.1 mm. The waterproof construction accessory according to claim 1, wherein: 前記基層の片側の厚みが、それぞれ０．０５ｍｍ〜０．４ｍｍの範囲内で、前記密着層の片側の厚みが、それぞれ０．０２５ｍｍ〜０．０５ｍｍの範囲内であることを特徴とする請求項１又は２に記載の防水施工用役物。The thickness of one side of the base layer is within a range of 0.05 mm to 0.4 mm, respectively, and the thickness of one side of the adhesion layer is within a range of 0.025 mm to 0.05 mm, respectively. Item 1 or 2 for waterproofing construction. 導電性を有するシート状の基材と、
前記基材を挟むように配置され、主成分がフッ素樹脂で構成された基層と、
前記基層と前記基材との間に配置されるとともに、それらを密着させる密着層と、
主成分が前記基層より融点が低いフッ素樹脂で構成され、一方又は両方の最外層にあって加熱されることで接着層を形成する表層とが積層して構成された防水施工用役物と、表層がフッ素樹脂で構成されている防水シートとの当接部、又は前記防水施工用役物同士の当接部とが加熱により溶融一体化して接着層を形成していることを特徴とする防水施工用役物の接合構造。A sheet-like base material having conductivity;
A base layer disposed so as to sandwich the base material, the main component of which is composed of a fluororesin;
An adhesion layer that is disposed between the base layer and the base material and closely contacts them,
A waterproof construction accessory comprising a main component composed of a fluororesin having a melting point lower than that of the base layer, and being laminated with a surface layer that forms an adhesive layer by being heated in one or both outermost layers, Waterproofing characterized in that a contact part with a waterproof sheet whose surface layer is made of a fluororesin or a contact part between the waterproofing construction objects is fused and integrated by heating to form an adhesive layer Bonding structure for construction materials. 導電性を有するシート状の基材と、
前記基材を挟むように配置され、主成分がフッ素樹脂で構成された基層と、
前記基層と前記基材との間に配置されるとともに、それらを密着させる密着層と、
主成分が前記基層より融点が低いフッ素樹脂で構成され、一方又は両方の最外層にあって加熱されることで接着層を形成する表層とが積層して構成された防水施工用役物と、表層がフッ素樹脂で構成されている防水シートとを重ね合わせた部分、又は前記防水施工用役物同士を重ね合わせた部分を加熱装置により、前記重ね合わせた部分の接した両表層を溶融して接着することを特徴とする防水施工用役物の接合方法。A sheet-like base material having conductivity;
A base layer disposed so as to sandwich the base material, the main component of which is composed of a fluororesin;
An adhesion layer that is disposed between the base layer and the base material and closely contacts them,
A waterproof construction accessory comprising a main component composed of a fluororesin having a melting point lower than that of the base layer, and being laminated with a surface layer that forms an adhesive layer by being heated in one or both outermost layers, Using a heating device, melt the two surface layers that are in contact with the overlapped portion with a portion where the surface layer is overlapped with a waterproof sheet made of a fluororesin or the portion where the waterproofing construction features are overlapped with each other A bonding method for a waterproof construction accessory characterized by bonding.
JP2003184085A 2003-06-27 2003-06-27 Waterproof construction accessory and joining structure and joining method using the same Expired - Fee Related JP4025251B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003184085A JP4025251B2 (en) 2003-06-27 2003-06-27 Waterproof construction accessory and joining structure and joining method using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003184085A JP4025251B2 (en) 2003-06-27 2003-06-27 Waterproof construction accessory and joining structure and joining method using the same

Publications (2)

Publication Number Publication Date
JP2005016204A true JP2005016204A (en) 2005-01-20
JP4025251B2 JP4025251B2 (en) 2007-12-19

Family

ID=34183962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003184085A Expired - Fee Related JP4025251B2 (en) 2003-06-27 2003-06-27 Waterproof construction accessory and joining structure and joining method using the same

Country Status (1)

Country Link
JP (1) JP4025251B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008109325A1 (en) * 2007-03-01 2008-09-12 Dow Global Technologies Inc. Fluorinated polymer system
US8486525B2 (en) * 2008-12-23 2013-07-16 David G. Segur Method and apparatus having two surfaces for sealing distribution ducts
WO2014133099A1 (en) * 2013-02-28 2014-09-04 ニチアス株式会社 Article having fluororesin joint, and method for producing such article
US20220098848A1 (en) * 2020-09-29 2022-03-31 Brent Waterman Pipe covering

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008109325A1 (en) * 2007-03-01 2008-09-12 Dow Global Technologies Inc. Fluorinated polymer system
US8486525B2 (en) * 2008-12-23 2013-07-16 David G. Segur Method and apparatus having two surfaces for sealing distribution ducts
WO2014133099A1 (en) * 2013-02-28 2014-09-04 ニチアス株式会社 Article having fluororesin joint, and method for producing such article
JPWO2014133099A1 (en) * 2013-02-28 2017-02-02 ニチアス株式会社 Articles including joints of fluororesin and method for producing the same
US20220098848A1 (en) * 2020-09-29 2022-03-31 Brent Waterman Pipe covering
US11802399B2 (en) * 2020-09-29 2023-10-31 Brent Waterman Pipe covering

Also Published As

Publication number Publication date
JP4025251B2 (en) 2007-12-19

Similar Documents

Publication Publication Date Title
JPS6364728A (en) Method of heat-sealing thermoplastic film
US20180179418A1 (en) Adhering sealing membranes onto electrically conductive substrates by means of induction
JP4025251B2 (en) Waterproof construction accessory and joining structure and joining method using the same
JP4602114B2 (en) Waterproof sheet fixing method and pressure jig
JP3859144B2 (en) Waterproof sheet, waterproof sheet joining structure, and waterproof sheet joining method
JP2004211291A (en) Joining method for waterproof/impervious sheet
JP2006274681A (en) Fixing method of waterproof sheet
JP5686337B2 (en) Fireproof / waterproof exterior construction method
JP4230858B2 (en) Wall fixing structure of impermeable sheet and fixing method
JP3933985B2 (en) Manufacturing method of laminate
JP3872708B2 (en) Tarpaulin fixing tool and tarpaulin fixing method
JP5652754B2 (en) Waterproof surface structure and construction method thereof
JP4180820B2 (en) Fixing plate for waterproof sheet and fixing method of waterproof sheet
JP7222573B1 (en) Seat fixing device and seat fixing method
JP4223253B2 (en) Waterproofing method
EA026428B1 (en) System for connecting sheets of bituminous or synthetic membranes
WO2005095090A1 (en) Sheeting material
JP2008082155A (en) Joining method for water-proof sheet
JP2005180141A (en) Waterproof sheet fixing method
JP2006283549A (en) Waterproof sheet fixing method
JP3008958U (en) Waterproof sheet for insulation method
JP2976051B2 (en) Insulation waterproofing panel and method for performing insulation and waterproofing on building surface
JP2001040838A (en) Joining material for construction and connecting structure for gutter using the same
JPS632503Y2 (en)
JP2003293527A (en) Method for joining waterproof and impervious sheet

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060508

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20070920

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20071002

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20071004

R150 Certificate of patent (=grant) or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101012

Year of fee payment: 3

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101012

Year of fee payment: 3

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111012

Year of fee payment: 4

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111012

Year of fee payment: 4

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121012

Year of fee payment: 5

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121012

Year of fee payment: 5

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131012

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees