JP3805325B2

JP3805325B2 - Floor forming method, joint forming tool and joint forming structure

Info

Publication number: JP3805325B2
Application number: JP2003169289A
Authority: JP
Inventors: 亮一山部; 重孝清水; 聡一好川
Original assignee: アーキヤマデ株式会社
Priority date: 2003-06-13
Filing date: 2003-06-13
Publication date: 2006-08-02
Anticipated expiration: 2023-06-13
Also published as: JP2005002712A

Description

【０００１】
【発明の属する技術分野】
本発明は、床下地上の目地予定部に沿って設置自在な目地形成用基台と、目地形成用基台に嵌合させた状態で嵌合深さを変更自在な目地本体とからなる目地形成部材を予め用意しておき、前記床下地上に、前記目地形成部材を設置し、前記目地本体の嵌合深さを調整して高さ合わせを行った状態で、前記目地形成部材の両側の空間にコンクリートを打設して床を形成する床形成方法に関する。
また、その床形成方法に直接使用する目地形成具、及び、目地形成具を使用した目地形成構造に関する。
【０００２】
【従来の技術】
従来、この種の床形成、及び、目地形成の技術としては、図９（イ）に示すように、前記目地本体１Ｂの高さ合わせを行った状態で、目地本体１Ｂと目地形成用基台１Ａとの両側部に固定用のモルタル２０を接触する状態に盛り上げて硬化させ、目地形成部材の姿勢固定を図るものや、目地本体１Ｂと目地形成用基台１Ａとにわたって固定ピンを側方から打ち込んで目地形成部材の姿勢固定を図るものがあった（例えば、特許文献１参照）。
尚、この様な従来技術に関しては、当業者の間で広く知られているものであるが、目地本体と目地形成用基台とをモルタルで固定する前者の技術に関しては詳しく言及した特許文献などは見あたらないので、先行技術文献は示していない。
【０００３】
【特許文献１】
実開昭５７−２６５０６号公報（第１図）
【０００４】
【発明が解決しようとする課題】
上述した従来の技術の内の前者のものによれば、目地本体と目地形成用基台との固定は、それぞれの両側部に設けられたモルタルを介して実施されており、目地本体の上に人が載るなどして大きな荷重が作用すると、図９（ロ）に示すように、目地本体１Ｂは、モルタル２０とのセン断抵抗が不足して、容易に目地形成用基台１Ａの凹溝部７内に陥没してしまい、一度設定した高さが変わってしまう危険性がある。また、従来技術の後者のものによれば、目地本体は、打ち込まれた固定ピンで支持されているから、上からの荷重が目地本体に作用したら、その支持力は、固定ピン周りの目地本体部分に集中して作用し、目地本体の局部破壊を起こしたり、固定ピンが外れたりして、やはり、一度設定した目地本体の高さが変わってしまう危険性がある。
当該目地形成部材を固定してから床のコンクリートを打設するまでの間は、作業をする人の往来が激しく、目地本体上を踏みつける可能性が高く、従来技術によれば、陥没した目地本体を引き抜いて、再度、高さ調整を行うと言った手間が掛かり、床形成の作業効率が低下し易い問題点があった。
【０００５】
従って、本発明の目的は、上記問題点を解消し、仮固定状態で目地上に荷重が作用しても、目地高さが変わり難い施工技術を提供するところにある。
【０００６】
【課題を解決するための手段】
請求項１の発明の特徴構成は、床下地上の目地予定部に沿って設置自在な目地形成用基台と、目地形成用基台に嵌合させた状態で嵌合深さを変更自在な目地本体とからなる目地形成部材を予め用意しておき、前記床下地上に、前記目地形成部材を設置し、前記目地本体の嵌合深さを調整して高さ合わせを行った状態で、前記目地形成部材の両側の空間にコンクリートを打設して床を形成する床形成方法において、前記目地本体の高さ合わせに伴って、前記目地形成用基台と目地本体との間に残った嵌合代空間に、未硬化の状態では変形自在な硬化性支持体を、前記目地形成用基台と目地本体とにわたる状態に設けるところにある。
【０００７】
請求項１の発明の特徴構成によれば、前記目地本体の高さ合わせに伴って、前記目地形成用基台と目地本体との間に残った嵌合代空間に、未硬化の状態では変形自在な硬化性支持体を、前記目地形成用基台と目地本体とにわたる状態に設けるから、前記嵌合代空間内には、硬化性支持体が目地形成用基台と目地本体とにわたる状態に位置しており、両者の嵌合が深まるのを自らの存在で物理的に阻止して、目地本体を直接的に支持することが可能となる。
従って、目地本体上に荷重が作用しても、嵌合代空間にある前記硬化性支持体の圧縮耐力で受け止めることができ、従来のように目地本体が陥没して目地高さが変わってしまうと言ったことを防止し易くなる。その結果、床形成工程の中で、目地形成部材の高さ調整を何回もやり直す必要が無くなり、床形成作業の効率を向上させることが可能となる。
【０００８】
請求項２の発明の特徴構成は、前記硬化性支持体は、未硬化の状態では流動自在な流体であるところにある。
【０００９】
請求項２の発明の特徴構成によれば、請求項１の発明による作用効果を叶えることができるのに加えて、前記硬化性支持体を嵌合代空間に位置させる際に、流体であるから、例えば、流し込むような方法や、注入するような方法、塗布する方法等、さまざまな施工方法を採用することが可能となり、施工条件に合わせた施工法の選択性が広がる。
更には、硬化性支持体は、未硬化の状態で流動できるから、前記嵌合代空間内においては自由に形を変えることができ、嵌合代空間内の隅々にまで行き渡る状態に充填することが可能となる。よって、目地本体を支持する上での信頼性をより高く維持することが可能となる。
【００１０】
請求項３の発明の特徴構成は、前記硬化性支持体は、発泡性合成樹脂であるところにある。
【００１１】
請求項３の発明の特徴構成によれば、請求項１又は２の発明による作用効果を叶えることができるのに加えて、前記嵌合代空間内に発泡前の状態の硬化性支持体を位置させるだけの施工で、自らの発泡によって空間内に広がり、隅々にまで行き渡る状態に充填することが可能となる。従って、施工をより効率よく実施できるようになると共に、目地本体の支持効果も高く確保することが可能となる。
【００１２】
請求項４の発明の特徴構成は、請求項１〜３の何れか一項に記載の床形成方法に直接使用する目地形成具において、床下地上の目地予定部に沿って設置自在な目地形成用基台を設け、前記目地形成用基台と嵌合自在で、且つ、その嵌合深さの変更によって高さ調整可能な目地本体を設け、未硬化の状態では変形自在で、前記目地形成用基台と目地本体との間の嵌合代空間に、両者にわたる状態に設置自在な硬化性支持体を設けてあるところにある。
【００１３】
請求項４の発明の特徴構成によれば、目地形成用基台を床下地上に設置し、目地本体を目地形成用基台に嵌合させて高さを調整し、両者間の嵌合代空間に設けた硬化性支持体を硬化させると言った目地設置工程を含む床施工を、より効率よく実施することが可能となる。
そして、前記硬化性支持体が硬化すると、前記目地形成用基台と目地本体とを一体化することが可能となり、両者の嵌合姿勢を固定することができる。
従って、床下地上に当該目地形成具を仮固定した状態で、目地本体上に荷重が作用しても、嵌合代空間にある前記硬化性支持体の圧縮耐力で受け止めることができ、従来のように目地本体が陥没して目地高さが変わってしまうと言ったことを防止し易くなる。その結果、床形成工程の中で、目地形成部材の高さ調整を何回もやり直す必要が無くなり、床形成作業の効率を向上させることが可能となる。
【００１４】
請求項５の発明の特徴構成は、前記目地本体と目地形成用基台との嵌合を叶える嵌合部は、前記目地本体の縁部と、その縁部が嵌入自在な状態に前記目地形成用基台の長手方向に沿って形成した凹溝部とで構成してあり、前記凹溝部の底部には、溝幅ほぼ中央部に、目地形成用基台の長手方向に沿って小溝部を形成してあるところにある。
【００１５】
請求項５の発明の特徴構成によれば、請求項４の発明による作用効果を叶えることができるのに加えて、前記凹溝部内に硬化性支持体を配置する際に、前記小溝部をガイドとして作業を進めることができるから硬化性支持体の配置作業効率の向上を図ることが可能となる。この溝部をガイドとする一例を説明すると、例えば、発泡樹脂等の硬化性支持体を吐出ノズルで凹溝部に塗布する際に、ノズル先端を小溝部に当てがった状態で溝長手方向に移動させながら硬化性支持体を吐出するような方法を採用することができる。
また、溝幅中央部に設けた小溝部をガイドとすれば、前記凹溝部のほぼ中央部に硬化性支持体を位置させることが可能となるから、偏り少ない状態での目地本体の支持を叶えることができる。
【００１６】
請求項６の発明の特徴構成は、前記目地本体と目地形成用基台との嵌合を叶える嵌合部は、前記目地本体の縁部と、その縁部が嵌入自在な状態に前記目地形成用基台の長手方向に沿って形成した凹溝部とで構成してあり、前記凹溝部には、前記目地本体の進入を許容した状態で凹溝内を溝長手方向に複数区画に仕切る仕切部が設けてあるところにある。
【００１７】
請求項６の発明の特徴構成によれば、請求項４又は５の発明による作用効果を叶えることができるのに加えて、前記仕切部によって複数区画に仕切られた凹溝各部に対して、例えば、一つおき（又は、二つ以上の複数おき）に前記硬化性支持体を位置させることが可能で、それによって、前記硬化性支持体の使用量を削減することができ、目地形成に関わるコストダウンを図ることが可能となる。
【００１８】
請求項７の発明の特徴構成は、前記目地本体と目地形成用基台との嵌合を叶える嵌合部は、前記目地形成用基台の凸縁部と、その凸縁部が嵌入自在な状態に前記目地本体の長手方向に沿って形成した凹溝部とで構成してあり、前記目地本体には、前記凹溝部内へ前記硬化性支持体を充填自在な充填口を設けてあるところにある。
【００１９】
請求項７の発明の特徴構成によれば、請求項４の発明による作用効果を叶えることができるのに加えて、目地形成用基台の凸縁部に凹溝部が外嵌する状態に目地本体を設置した後からでも、前記充填口を用いて、嵌合代空間へ硬化性支持体を充填することが可能となる。従って、予め嵌合代空間にある程度の量の硬化性支持体を位置させた状態で両者を嵌合させ、前記充填口から更に硬化性支持体を補充すると言った施工方法や、両者を嵌合させた後に全ての硬化性支持体を前記充填口から嵌合代空間に充填するといった施工方法を、自由に選択して施工することが可能となる。即ち、施工法の選択性が向上し、現場状況によく合致する施工法を採用して、より効率的に目地形成施工を進めることが可能となる。
【００２０】
請求項８の発明の特徴構成は、請求項４〜７の何れか一項に記載の目地形成具を使用した目地形成構造において、床下地上の目地予定部に沿って目地形成用基台を設置し、前記目地形成用基台上に、目地本体を嵌合状態に配置し、前記目地形成用基台と目地本体との間の嵌合代空間に、両者にわたる状態に硬化性支持体を設けて一体化してあるところにある。
【００２１】
請求項８の発明の特徴構成によれば、前記嵌合代空間内に、硬化性支持体が目地形成用基台と目地本体とにわたる状態に位置しているから、両者の嵌合が深まるのを自らの存在で物理的に阻止して、目地本体を直接的に支持することが可能となる。
従って、目地本体上に荷重が作用しても、嵌合代空間にある前記硬化性支持体の圧縮耐力で受け止めることができ、従来のように目地本体が陥没して目地高さが変わってしまうと言ったことを防止し易くなる。その結果、床形成工程の中で、目地形成部材の高さ調整を何回もやり直す必要が無くなり、床形成作業の効率を向上させることが可能となる。
【００２２】
【発明の実施の形態】
以下に本発明の実施の形態を図面に基づいて説明する。尚、図面において従来例と同一の符号で表示した部分は、同一又は相当の部分を示している。
【００２３】
図３は、本発明の目地形成具の一実施品（以後、単に目地形成具１と言う）を用いて、本発明の床形成方法によって形成された床Ｆを示すものである。そして、本発明の目地形成構造は、この床Ｆの目地部分に生かされている。
【００２４】
前記床Ｆは、床下地２上に、所定間隔の碁盤目形状に形成された目地Ｆ１と、各目地Ｆ１で囲まれた範囲に打設されたコンクリートＦ２とを一体的に設けて構成してある。
【００２５】
前記目地Ｆ１は、一例として、発泡スチロール等の合成樹脂で形成された目地形成具１を、床下地２上に接着材３を用いて固着して形成してあり、目地形成具１が備えた弾性変形性能によって、前記コンクリートＦ２の温度変化に伴う伸縮を吸収できるように構成されている。
【００２６】
前記目地形成具１について説明する。
前記目地形成具１は、床下地２上の目地予定部に沿って設置自在な目地形成用基台１Ａを設け、前記目地形成用基台１Ａと嵌合自在で、且つ、その嵌合深さの変更によって高さ調整可能な目地本体１Ｂを設け、未硬化の状態では変形自在で、前記目地形成用基台１Ａと目地本体１Ｂとの間の嵌合代空間Ｖに、両者にわたる状態に設置自在な充填材（硬化性支持体に相当）４を設けて構成されている。
【００２７】
前記目地形成用基台１Ａは、図１、図２に示すように、断面形状が「上下逆の下駄」形状の長尺部材で構成してあり、前記床下地２に接着状態に設置されるベース部５と、そのベース部５の幅中間部から上方へ突出した一対の突条部６とを設けて構成してある。使用材料は、発泡スチロールである。
尚、床下地２へのベース部５の接着に関しては、例えば、両面粘着テープを使用したり、接着剤を塗布する等の方法の他、公知の接着方法の何れをもっても実施することができる。勿論、従来と同様に、前記ベース部５と床下地２とにわたってそれらを覆う状態にモルタルをカバーリングさせて固定することも可能である。
前記一対の突条部６は、前記目地本体１Ｂの幅寸法とほぼ同様の寸法ほど間隔を開けて形成してあり、この隙間によって、前記目地本体１Ｂの下縁部が嵌入自在な凹溝部７が構成されている。そして、この凹溝部７内に、前記目地本体１Ｂが上下位置変更自在に嵌入することができることから、凹溝部７内の空間を、前述のように嵌合代空間Ｖと言う。
また、突条部６は、前記下方側ほど厚肉に形成してあり、側方からの荷重に対して特に強力に対抗できるよう補強してある。
一方、前記凹溝部７の底部には、溝幅中央部（又はほぼ中央部）に、目地形成用基台１Ａの長手方向に沿って小溝部８を形成してある。この小溝部８は、目地形成具１の端部においては、床下地２上に描かれた目地形成予定線に合わせて目地形成用基台１Ａを配置する際の目印として機能させることができる。また、目地形成用基台１Ａの全長にわたって小溝部８が形成してあることで、前記充填材４を特製の吐出ノズルを用いて吐出させる際に、この小溝部８内に吐出ノズルの一部が嵌るように配置した状態で、長手方向に沿って移動させることで、吐出させた充填材４を、凹溝部７の溝幅のほぼ中央部に位置させることができ、偏りのない状態に充填することが可能となる（図２参照）。特に、充填材に、発泡ウレタン等の発泡性のものを使用する場合には、吐出ノズルで吐出した後に発泡して広がるから、吐出位置が偏らない方が、全体に均等に広がり易いので品質上、好ましい。
【００２８】
前記目地本体１Ｂは、図に示すように、縦長の矩形断面形状に形成された長尺部材で構成してある。使用材料は、発泡スチロールである。
尚、目地本体１Ｂの幅寸法は、上述の通り、前記凹溝部７の幅寸法とほぼ同じ寸法（又は、若干大きめの寸法）に形成してある。そして、前記凹溝部７内に、下端の縁部９を嵌入させることで目地形成用基台１Ａと目地本体１Ｂとを一体化することができる。また、この嵌入状態のまま、目地本体１Ｂの嵌入深さを上下変更することで、目地本体１Ｂの上端部の高さを変更調整することができる。
前記目地本体１Ｂの縁部９と、前記凹溝部７とで嵌合部Ｊが構成されている。
尚、目地本体１Ｂの高さ調整は、目地本体１Ｂの上端の縁部１０が、床Ｆの表面と面一になるように実施される。
【００２９】
前記充填材４は、本実施形態においては、発泡ウレタン樹脂によって構成してある。そして、発泡ウレタン樹脂を吐出ノズルを用いて前記嵌合代空間Ｖに吐出すると、徐々に発泡しながら広がり、嵌合代空間Ｖに充満して目地形成用基台１Ａと目地本体１Ｂとにわたる状態で硬化する。
従って、前記目地本体１Ｂ上に荷重が作用しても、硬化した充填材４を介して目地形成用基台１Ａで支持することができ、不用意に、目地本体１Ｂが、嵌合代空間Ｖ内に陥没することを防止できる。
【００３０】
以下に、床形成手順についての一例を挙げて説明する。
［１］床下地２上の目地予定部に沿って目地形成用基台１Ａを固定する（図１参照）。
［２］目地形成用基台１Ａの凹溝部７内に、前記小溝部８をノズルガイドとして充填材４を吐出すると共に、その上から、前記目地本体１Ｂを嵌入する（図２参照）。
［３］前記充填材４が未硬化の状態で、目地本体１Ｂの嵌合深さを調整して、目地高さが所定値になるように合わせる。
［４］充填材４の硬化を待って、目地形成部具１の両側部の空間にコンクリートＦ２を打設して、硬化養生する（図３参照）。
【００３１】
本実施形態の目地形成技術によれば、前記目地本体１Ｂを、嵌合代空間Ｖ内に充満した充填材４によって直接的に鉛直支持することが可能となり、目地本体上に荷重が作用しても、嵌合代空間に目地本体が陥没して目地高さが変わってしまうと言ったことを防止し易くなる。従って、目地高さの再調整を行う必要が無くなり、床形成作業の効率を向上させることが可能となる。
更には、前記嵌合代空間Ｖ内を、前記充填材４で埋め尽くすことで、床上からの水が嵌合代空間Ｖ内に溜まることをも防止できる。
【００３２】
〔別実施形態〕
以下に他の実施の形態を説明する。
【００３３】
〈１〉前記目地形成具１は、先の実施形態で説明した目地形成用基台１Ａと目地本体１Ｂとによる構成に限るものではなく、形状の変更を行うことが可能である。
その一例を説明すると、図４〜６に示すように、目地形成用基台１Ａを、断面形状「逆Ｔ字」形状の長尺体で構成し、目地本体１Ｂは、その目地形成用基台１Ａの上端部に位置する凸縁部１１に外嵌自在な長尺体で構成したものが挙げられる。即ち、目地形成用基台１Ａは、ベース部１２と、そのベース部１２の幅方向中央部から上方に伸びる凸縁部１１とを備えて構成してあり、目地本体１Ｂは、前記凸縁部１１と嵌合自在な凹溝部１３を下面側に備えた断面形状「逆Ｕ字」形状の長尺体で構成してある。そして、前記目地本体１Ｂの上底部には、長手方向に間隔をあけて複数の充填口１４を設けてある。この充填口１４は、床下地２上に固定された前記目地形成用基台１Ａに、目地本体１Ｂを外嵌させて、所定の目地高さに調整した後、凹溝部１３内の嵌合代空間Ｖに充填材４を充填するのに用いることができる。
また、ここで説明した実施形態においても、使用材料は、適宜選択することが可能である。例えば、目地形成用基台１Ａは、発泡スチロールや、他の合成樹脂等で構成することが可能で、目地本体１Ｂも同様に、発泡スチロールや、他の合成樹脂等で構成することが可能である。
〈２〉前記目地形成具１は、先の実施形態で説明したように、全長にわたって連続した凹溝部７を備えたものに限るものではなく、例えば、図７、図８に示すように、前記目地本体１Ｂの進入を許容した状態で凹溝部内を溝長手方向に複数区画に仕切る仕切部１５を前記凹溝部７に設けてあってもよい。この実施形態においては、前記仕切部１５は、下辺のみがベース部５に固定され、その固定部を揺動中心として溝長手方向に揺動自在に構成されている。従って、図８に示すように、凹溝部７内に目地本体１Ｂが嵌入してくれば、その下端縁部９に押されて下方側へ揺動する。そして、充填材４を嵌合代空間Ｖに充填する際には、前記仕切部１５で複数に仕切られた区画の、例えば、一つおきに充填することで、総充填量を少なくすることができる。
〈３〉前記硬化性支持体は、先の実施形態で説明したウレタン樹脂に限るものではなく、例えば、他の発泡樹脂や、モルタル等の流動体であってもよい。要するに、硬化するまでは、変形可能で、硬化した状態で目地本体１Ｂを目地形成用基台１Ａに一体的に支持できるものであればよく、それらを総称して硬化性支持体と言う。
【００３４】
尚、上述のように、図面との対照を便利にするために符号を記したが、該記入により本発明は添付図面の構成に限定されるものではない。
【図面の簡単な説明】
【図１】目地形成具の設置状況を示す要部斜視図
【図２】目地形成具の設置状況を示す断面図
【図３】床を示す要部断面図
【図４】別実施形態の目地形成具の設置状況を示す要部斜視図
【図５】別実施形態の目地形成具の設置状況を示す断面図
【図６】別実施形態の床を示す要部断面図
【図７】別実施形態の目地形成具の設置状況を示す要部斜視図
【図８】別実施形態の目地形成具の設置状況を示す側面視要部斜視図
【図９】従来の目地形成具の設置状況を示す断面図
【符号の説明】
１Ａ目地形成用基台
１Ｂ目地本体
２床下地
４充填材（硬化性支持体に相当）
７凹溝部
８小溝部
９縁部
１１凸縁部
１３凹溝部
１４充填口
１５仕切部
Ｆ２コンクリート
Ｊ嵌合部
Ｖ嵌合代空間[0001]
BACKGROUND OF THE INVENTION
The present invention is a joint formation comprising a joint formation base that can be installed along a joint joint planned portion on a floor base, and a joint body that can be fitted to the joint formation base and whose joint depth can be freely changed. Spaces on both sides of the joint forming member are prepared in a state where the joint forming member is installed on the floor base and the fitting depth of the joint body is adjusted to adjust the height. The present invention relates to a floor forming method in which concrete is placed on a floor to form a floor.
Moreover, it is related with the joint formation tool used directly in the floor formation method, and the joint formation structure using a joint formation tool.
[0002]
[Prior art]
Conventionally, as this kind of floor formation and joint formation technology, as shown in FIG. 9 (a), the joint body 1B and the joint formation base are in a state in which the joint body 1B is adjusted in height. The fixing mortar 20 is raised and cured in contact with both sides of 1A to fix the orientation of the joint forming member, and the fixing pin is extended from the side over the joint body 1B and joint forming base 1A. Some have driven in and fixed the attitude | position of a joint formation member (for example, refer patent document 1).
Such a conventional technique is widely known among those skilled in the art. However, the patent literature, etc., mentioned in detail regarding the former technique for fixing the joint body and the joint forming base with a mortar. Is not found, so prior art documents are not shown.
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 57-26506 (Fig. 1)
[0004]
[Problems to be solved by the invention]
According to the former one of the above-described conventional techniques, the joint body and the joint base are fixed through mortars provided on both sides of the joint body. When a large load is applied, for example, when a person is placed on the joint body 1B, the joint body 1B lacks the shearing resistance with the mortar 20, and the groove portion of the joint forming base 1A can be easily formed as shown in FIG. There is a risk that the height set once will change and the height once set will change. Also, according to the latter of the prior art, the joint body is supported by the fixed pin that is driven in, so if a load from above acts on the joint body, the support force is the joint body around the fixed pin. There is a risk that the height of the joint body once set may change due to the concentrated action on the part, causing local destruction of the joint body, or the fixing pin coming off.
Between fixing the joint forming member and placing concrete on the floor, the traffic of the workers is intense and the possibility of stepping on the joint body is high. According to the prior art, the depressed joint body There is a problem that it takes time and effort to adjust the height again, and the work efficiency of floor formation tends to be lowered.
[0005]
Accordingly, an object of the present invention is to solve the above-mentioned problems and provide a construction technique in which the joint height is unlikely to change even if a load acts on the joint ground in a temporarily fixed state.
[0006]
[Means for Solving the Problems]
The characteristic configuration of the invention of claim 1 is a joint forming base that can be installed along a joint planned portion on the floor base, and a joint in which the fitting depth can be changed while being fitted to the joint forming base. A joint forming member comprising a main body is prepared in advance, the joint forming member is installed on the floor base, the fitting depth of the joint main body is adjusted, and the joint is formed in a state where the joint is formed. In a floor forming method in which concrete is placed in spaces on both sides of a forming member to form a floor, the fitting remaining between the joint forming base and the joint body along with the height adjustment of the joint body In the marginal space, a curable support that is deformable in an uncured state is provided across the joint-forming base and the joint body.
[0007]
According to the characteristic configuration of the first aspect of the invention, the fitting space remaining between the joint forming base and the joint body is deformed in an uncured state as the joint body is adjusted in height. Since a flexible curable support is provided in a state extending between the joint formation base and the joint body, the curable support is in a state extending between the joint formation base and the joint body in the fitting space. It is located, and it becomes possible to support the joint body directly by physically preventing the two from deepening in their presence.
Therefore, even if a load acts on the joint body, it can be received by the compressive strength of the curable support in the fitting allowance space, and the joint body is depressed and the joint height changes as in the conventional case. It becomes easy to prevent that said. As a result, it is not necessary to repeat the height adjustment of the joint forming member many times in the floor forming process, and the efficiency of the floor forming work can be improved.
[0008]
According to a second aspect of the present invention, the curable support is a fluid that can flow in an uncured state.
[0009]
According to the characteristic configuration of the invention of claim 2, in addition to being able to achieve the function and effect of the invention of claim 1, it is a fluid when the curable support is positioned in the fitting allowance space. For example, various construction methods such as a pouring method, a pouring method, and a coating method can be adopted, and the selectivity of the construction method according to the construction conditions is expanded.
Further, since the curable support can flow in an uncured state, the shape can be freely changed in the fitting margin space, and the curable support is filled in a state that extends to every corner in the fitting margin space. It becomes possible. Therefore, it is possible to maintain higher reliability in supporting the joint body.
[0010]
According to a third aspect of the invention, the curable support is a foamable synthetic resin.
[0011]
According to the characteristic configuration of the invention of claim 3, in addition to being able to achieve the operational effect of the invention of claim 1 or 2, the curable support in a state before foaming is positioned in the fitting margin space. It is possible to fill in a state that spreads in the space by self-foaming and spreads to every corner by simply performing the construction. Therefore, it becomes possible to carry out the construction more efficiently, and it is possible to ensure a high support effect for the joint body.
[0012]
According to a fourth aspect of the present invention, there is provided a joint forming tool used directly in the floor forming method according to any one of the first to third aspects, wherein the joint forming tool can be installed along a joint joint planned portion on the floor base. A base is provided, and a joint body that can be fitted to the joint forming base and can be adjusted in height by changing the fitting depth is provided, and can be deformed in an uncured state. The fitting space between the base and the joint body is provided with a curable support that can be installed in a state extending over both.
[0013]
According to the characteristic configuration of the invention of claim 4, the joint forming base is installed on the floor base, the joint body is fitted to the joint forming base, the height is adjusted, and the fitting allowance space between the two is adjusted. It is possible to more efficiently carry out floor construction including a joint installation step in which the curable support provided on the substrate is cured.
And when the said curable support body hardens | cures, it becomes possible to integrate the said joint formation base and a joint main body, and can fix both fitting attitude | positions.
Therefore, even if a load acts on the joint body in a state where the joint forming tool is temporarily fixed on the floor base, it can be received by the compressive strength of the curable support in the fitting allowance space. It becomes easy to prevent that the joint body collapses and the joint height changes. As a result, it is not necessary to repeat the height adjustment of the joint forming member many times in the floor forming process, and the efficiency of the floor forming work can be improved.
[0014]
According to a fifth aspect of the present invention, there is provided a fitting portion that achieves fitting between the joint body and the joint forming base, wherein the joint portion is formed so that the edge portion of the joint body and the edge portion can be fitted. Yes constituted by the forming the groove part along the use base in the longitudinal direction, the bottom of the groove portion, the central portion crucible Ho groove width, the small groove portion along the longitudinal direction of the joint-forming base It is where it is formed.
[0015]
According to the characteristic configuration of the invention of claim 5, in addition to being able to achieve the function and effect of the invention of claim 4, the small groove portion is guided when the curable support is disposed in the groove portion. Therefore, it is possible to improve the arrangement work efficiency of the curable support. An example of using this groove portion as a guide will be described. For example, when a curable support such as foam resin is applied to the groove portion with a discharge nozzle, the nozzle tip moves in the groove longitudinal direction with the small groove portion being applied. It is possible to employ a method in which the curable support is discharged while the curable support is being used.
Further, if the small groove portion provided in the central portion of the groove width is used as a guide, it becomes possible to position the curable support body in the substantially central portion of the concave groove portion, so that the joint body can be supported in a state with little deviation. be able to.
[0016]
According to a sixth aspect of the present invention, there is provided a fitting portion that achieves fitting between the joint body and the joint formation base, the joint portion forming the joint body in a state where the joint body body and the edge portion can be fitted. And a partition portion that partitions the inside of the groove into a plurality of sections in the groove longitudinal direction while allowing the joint body to enter. Is in place.
[0017]
According to the characteristic configuration of the invention of claim 6, in addition to being able to achieve the operational effect of the invention of claim 4 or 5, for each part of the concave groove partitioned into a plurality of sections by the partition, for example, , It is possible to position the curable support every other (or every other two or more), thereby reducing the amount of use of the curable support and involved in joint formation Cost can be reduced.
[0018]
The characteristic configuration of the invention of claim 7 is that the fitting portion that achieves the fitting between the joint body and the joint forming base is a convex edge portion of the joint forming base, and the convex edge portion can be freely fitted. The groove body formed in the state along the longitudinal direction of the joint body, and the joint body is provided with a filling port capable of filling the curable support into the groove section. is there.
[0019]
According to the characteristic configuration of the invention of claim 7, in addition to being able to achieve the function and effect of the invention of claim 4, the joint body is in a state in which the recessed groove portion is fitted on the convex edge portion of the joint forming base. Even after installation, the curable support can be filled into the fitting allowance space using the filling port. Therefore, with a certain amount of curable support placed in advance in the fitting allowance space, the two are fitted together, and the construction method is such that the curable support is further replenished from the filling port, or the two are fitted. It is possible to freely select and apply a construction method in which all the curable support is filled from the filling port into the fitting allowance space. In other words, the selectivity of the construction method is improved, and it is possible to proceed with the joint formation construction more efficiently by adopting a construction method that closely matches the on-site situation.
[0020]
The characteristic configuration of the invention of claim 8 is the joint formation structure using the joint formation tool according to any one of claims 4 to 7, wherein the joint formation base is installed along the joint joint planned portion on the floor foundation. Then, the joint body is disposed in a fitted state on the joint forming base, and a curable support is provided in the joint space between the joint forming base and the joint body in a state extending over both. Are integrated.
[0021]
According to the characteristic configuration of the invention of claim 8, since the curable support is located in the joint margin space so as to extend between the joint formation base and the joint body, the fitting between the two is deepened. It is possible to support the joint body directly by physically preventing it from being present.
Therefore, even if a load acts on the joint body, it can be received by the compressive strength of the curable support in the fitting allowance space, and the joint body is depressed and the joint height changes as in the conventional case. It becomes easy to prevent that said. As a result, it is not necessary to repeat the height adjustment of the joint forming member many times in the floor forming process, and the efficiency of the floor forming work can be improved.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts denoted by the same reference numerals as those in the conventional example indicate the same or corresponding parts.
[0023]
FIG. 3 shows a floor F formed by the floor forming method of the present invention using one embodiment of the joint forming tool of the present invention (hereinafter simply referred to as the joint forming tool 1). The joint forming structure of the present invention is utilized in the joint portion of the floor F.
[0024]
The floor F is formed by integrally providing a joint F1 formed in a grid pattern with a predetermined interval and a concrete F2 placed in a range surrounded by the joints F1 on the floor base 2. is there.
[0025]
As an example, the joint F1 is formed by fixing the joint forming tool 1 formed of a synthetic resin such as polystyrene foam on the floor base 2 using the adhesive material 3, and the joint forming tool 1 has the elasticity. It is comprised so that the expansion-contraction accompanying the temperature change of the said concrete F2 can be absorbed with a deformation | transformation performance.
[0026]
The joint forming tool 1 will be described.
The joint forming tool 1 is provided with a joint forming base 1A that can be installed along a joint joint portion on the floor base 2, and can be fitted to the joint forming base 1A, and the fitting depth thereof. A joint body 1B whose height can be adjusted is provided by changing the height of the joint body. The joint body 1B can be deformed in an uncured state, and is installed in a fitting space V between the joint formation base 1A and the joint body 1B. A flexible filler (corresponding to a curable support) 4 is provided.
[0027]
As shown in FIG. 1 and FIG. 2, the joint forming base 1 A is formed of a long member having a cross-sectional shape of “upside down clogs” and is installed in an adhesive state on the floor base 2. The base portion 5 and a pair of protrusions 6 protruding upward from the width intermediate portion of the base portion 5 are provided. The material used is polystyrene foam.
In addition, regarding adhesion | attachment of the base part 5 to the floor base 2, it can implement with any of well-known adhesion methods other than the method of using a double-sided adhesive tape or apply | coating an adhesive agent, for example. Of course, it is also possible to cover and fix the mortar so as to cover the base portion 5 and the floor base 2 as in the conventional case.
The pair of protrusions 6 are formed so as to be spaced apart from each other by approximately the same size as the width of the joint body 1B, and the concave groove part 7 into which the lower edge of the joint body 1B can be fitted by this gap. Is configured. And since the said joint main body 1B can be inserted in this concave groove part 7 so that a vertical position change is possible, the space in the concave groove part 7 is called the fitting margin space V as mentioned above.
Further, the protruding portion 6 is formed thicker toward the lower side, and is reinforced so as to be particularly strong against the load from the side.
On the other hand, a small groove portion 8 is formed at the bottom of the concave groove portion 7 along the longitudinal direction of the joint forming base 1A at the groove width center portion (or substantially the center portion). The small groove portion 8 can function as a mark at the end portion of the joint forming tool 1 when the joint forming base 1 A is arranged in accordance with the joint formation planned line drawn on the floor base 2. Further, since the small groove portion 8 is formed over the entire length of the joint forming base 1A, a part of the discharge nozzle is placed in the small groove portion 8 when the filler 4 is discharged using a special discharge nozzle. In the state where it is arranged to fit, the discharged filler 4 can be positioned at the substantially central part of the groove width of the concave groove portion 7 by moving along the longitudinal direction, and it is filled in a non-biased state. (See FIG. 2). In particular, when foaming materials such as urethane foam are used as the filler, since the foam expands after being discharged from the discharge nozzle, it is easier to spread evenly if the discharge position is not biased. ,preferable.
[0028]
As shown in the drawing, the joint body 1B is composed of a long member formed in a vertically long rectangular cross-sectional shape. The material used is polystyrene foam.
In addition, the width dimension of the joint main body 1B is formed to be substantially the same dimension (or slightly larger dimension) as the width dimension of the concave groove portion 7 as described above. Then, the joint forming base 1A and the joint body 1B can be integrated by fitting the lower edge 9 into the recessed groove portion 7. Moreover, the height of the upper end part of the joint main body 1B can be changed and adjusted by changing the insertion depth of the joint main body 1B up and down in this inserted state.
A fitting portion J is constituted by the edge portion 9 of the joint body 1B and the concave groove portion 7.
The height adjustment of the joint body 1B is performed so that the edge 10 at the upper end of the joint body 1B is flush with the surface of the floor F.
[0029]
In the present embodiment, the filler 4 is made of a urethane foam resin. When the urethane foam resin is discharged into the fitting allowance space V using a discharge nozzle, the foaming resin gradually expands and fills the fitting allowance space V to cover the joint forming base 1A and the joint body 1B. Cured with.
Therefore, even if a load is applied to the joint body 1B, the joint body 1B can be supported by the joint forming base 1A via the hardened filler 4. It can be prevented from sinking inside.
[0030]
Below, an example is given and demonstrated about a floor formation procedure.
[1] A joint forming base 1A is fixed along a joint joint planned portion on the floor base 2 (see FIG. 1).
[2] The filler 4 is discharged into the groove 7 of the joint forming base 1A using the small groove 8 as a nozzle guide, and the joint body 1B is inserted from above (see FIG. 2).
[3] With the filler 4 uncured, the fitting depth of the joint body 1B is adjusted so that the joint height becomes a predetermined value.
[4] Waiting for the filler 4 to harden, place concrete F2 in the space on both sides of the joint forming tool 1 and harden it (see FIG. 3).
[0031]
According to the joint formation technology of this embodiment, the joint body 1B can be directly vertically supported by the filler 4 filled in the fitting allowance space V, and a load acts on the joint body. However, it becomes easy to prevent the joint body from sinking into the fitting space and changing the joint height. Accordingly, it is not necessary to readjust the joint height, and the efficiency of the floor forming work can be improved.
Furthermore, by filling the fitting space V with the filler 4, it is possible to prevent water from the floor from accumulating in the fitting space V.
[0032]
[Another embodiment]
Other embodiments will be described below.
[0033]
<1> The joint forming tool 1 is not limited to the configuration of the joint forming base 1 A and the joint body 1 B described in the previous embodiment, and the shape can be changed.
As an example, as shown in FIGS. 4 to 6, the joint forming base 1 A is configured by a long body having a cross-sectional “inverted T shape”, and the joint main body 1 B is the joint forming base. The thing comprised by the elongate body which can be externally fitted to the convex edge part 11 located in the upper end part of 1A is mentioned. That is, the joint forming base 1A includes a base portion 12 and a convex edge portion 11 extending upward from the central portion in the width direction of the base portion 12, and the joint main body 1B includes the convex edge portion. 11 is configured by a long body having a cross-section “inverted U shape” including a concave groove portion 13 that can be fitted to the lower surface side. A plurality of filling ports 14 are provided in the upper bottom portion of the joint body 1B at intervals in the longitudinal direction. The filling port 14 is formed by fitting the joint main body 1B to the joint forming base 1A fixed on the floor base 2 and adjusting the joint joint to a predetermined joint height, and then fitting the joint into the groove 13. It can be used to fill the space V with the filler 4.
In the embodiment described here, the material used can be appropriately selected. For example, the joint forming base 1A can be made of foamed polystyrene, another synthetic resin, or the like, and the joint body 1B can be made of foamed polystyrene, another synthetic resin, or the like.
<2> As described in the previous embodiment, the joint forming tool 1 is not limited to the one provided with the concave groove portion 7 continuous over the entire length. For example, as illustrated in FIGS. A partition portion 15 that partitions the inside of the recessed groove portion into a plurality of sections in the groove longitudinal direction while allowing the joint body 1B to enter may be provided in the recessed groove portion 7. In this embodiment, only the lower side of the partition portion 15 is fixed to the base portion 5 and is configured to be swingable in the longitudinal direction of the groove with the fixed portion as a swing center. Therefore, as shown in FIG. 8, if the joint body 1 B is inserted into the recessed groove portion 7, the joint body 1 B is pushed by the lower end edge portion 9 and swings downward. When the filling material 4 is filled into the fitting allowance space V, the total filling amount can be reduced by, for example, filling every other section of the section partitioned by the partition 15. it can.
<3> The curable support is not limited to the urethane resin described in the previous embodiment, and may be, for example, another foamed resin or a fluid such as mortar. In short, any material that can be deformed until it is cured and can integrally support the joint body 1B on the joint-forming base 1A in a cured state is collectively referred to as a curable support.
[0034]
In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part showing the installation status of a joint forming tool. FIG. 2 is a cross-sectional view showing the installation status of a joint forming tool. FIG. 3 is a cross-sectional view of the main part showing a floor. Fig. 5 is a cross-sectional view showing the installation status of the joint forming tool of another embodiment. Fig. 6 is a cross-sectional view of the main portion showing the floor of another embodiment. Fig. 8 is a perspective view of the main part showing the installation status of the joint forming tool of the form. Fig. 8 is a perspective view of the main part showing the installation status of the joint forming tool of another embodiment. Fig. 9 shows the installation status of the conventional joint forming tool. Sectional view [Explanation of symbols]
1A Joint forming base 1B Joint body 2 Floor base 4 Filler (corresponding to curable support)
7 groove part 8 small groove part 9 edge part 11 convex edge part 13 groove part 14 filling port 15 partition part F2 concrete J fitting part V fitting allowance space

Claims

A joint forming member is prepared in advance, which includes a joint forming base that can be installed along the joint joint planned portion on the floor base, and a joint body that can be fitted to the joint forming base and the joint depth can be changed. In addition, the joint forming member is installed on the floor base, and the concrete is placed in the space on both sides of the joint forming member in a state where the joint depth is adjusted by adjusting the fitting depth of the joint main body. A floor forming method for forming a floor by installing,
In accordance with the height adjustment of the joint body, a curable support that is deformable in an uncured state in the fitting allowance space remaining between the joint formation base and the joint body is used for the joint formation. A floor forming method provided in a state extending between the base and the joint body.

The floor forming method according to claim 1, wherein the curable support is a fluid that can flow in an uncured state.

The floor forming method according to claim 1, wherein the curable support is a foamable synthetic resin.

A joint forming tool used directly in the floor forming method according to any one of claims 1 to 3,
A joint forming base that can be installed along a joint joint planned portion on the floor base is provided, and a joint main body that can be fitted to the joint forming base and can be adjusted in height by changing the fitting depth. A joint forming tool provided with a curable support that is freely deformable in an uncured state, and that can be installed in a state over the fitting space between the joint forming base and the joint body.

The fitting portion that achieves the fitting between the joint body and the joint forming base is formed along the longitudinal direction of the joint forming base so that the edge of the joint main body and the edge portion can be fitted. the Yes constituted by a recessed groove portion, the bottom portion of the groove portion, the central portion crucible Ho groove width, according to claim 4 in the longitudinal direction for the base joint formed is formed a small groove portion Joint forming tool.

The fitting portion that achieves the fitting between the joint body and the joint forming base is formed along the longitudinal direction of the joint forming base so that the joint body can be fitted with the edge of the joint body. 6. A partition part for partitioning the inside of the groove into a plurality of sections in the groove longitudinal direction in a state in which the joint body is allowed to enter is provided in the groove part. The joint forming tool described.

The fitting portion that achieves the fitting between the joint body and the joint forming base includes a convex edge portion of the joint forming base, and the longitudinal direction of the joint body in a state in which the convex edge portion can be fitted. The joint forming tool according to claim 4, wherein the joint body is provided with a filling port in which the curable support can be filled into the recessed groove part.

A joint formation structure using the joint formation tool according to any one of claims 4 to 7,
A joint formation base is installed along the joint joint planned portion on the floor base, and the joint body is arranged in a fitted state on the joint formation base, and between the joint formation base and the joint body. A joint forming structure in which a curable support is provided in a state extending over both in the fitting allowance space.