JP4268816B2

JP4268816B2 - Bolt rotation stop jig, bolt tightening method and building construction method

Info

Publication number: JP4268816B2
Application number: JP2003060284A
Authority: JP
Inventors: 陽任岩本; 邦雄安藤
Original assignee: Sekisui Chemical Co Ltd
Current assignee: Sekisui Chemical Co Ltd
Priority date: 2003-03-06
Filing date: 2003-03-06
Publication date: 2009-05-27
Anticipated expiration: 2023-03-06
Also published as: JP2004268174A

Description

【０００１】
【発明の属する技術分野】
この発明は、ボルト回転止め治具と、このボルト回転止め治具を使用してボルトを巻き締めるボルトの締付方法及び建物の施工方法に関する。
特に、狭い場所でボルトにナットを螺入して巻き締めるのに好適なボルト回転止め治具と、このボルト回転止め治具を使用してボルトを巻き締めるボルトの締付方法及び建物の施工方法に関する。
【０００２】
【従来の技術】
ユニット建物は、運搬可能な一定の大きさの箱形の、且つ、内部、外部の仕上げられた建物ユニットと屋根ユニット・屋根パネルを、予め、工場で製造し、この建物ユニットや屋根ユニット・屋根パネルの複数個を施工現場に運搬し、施工現場で組み立てて建物となすものであって、現場施工期間が短く、且つ、寸法精度の良い標準化された建物となる特徴があることから、近年、広く採用されている。
【０００３】
この建物ユニットと建物ユニットとを連結する方法としては、特許文献１に記載されている方法が知られている。
この特許文献１に記載されている建物ユニットの連結方法は、建物ユニットの周壁の床部分の下方四周に溝型鋼を設置し、また、上方の四周にも溝型鋼を設置して、隣接する建物ユニットの相互に接する溝型鋼に相互に合致するボルト孔あるいはボルトを設け、現地において、各建物ユニットを並べて設置し、前記溝型鋼のボルト孔とボルトを利用して連結する方法である。
【０００４】
一方、建物ユニットには種々な構造が知られているが、特許文献２に記載されているものが多い。
この特許文献２に記載されている建物ユニットは、矩形状の四隅に配置した４本の鋼製四角筒状体の柱と、この４本の柱の上端部を矩形状の辺に沿って連結した鋼製断面コ字形長尺体の天井梁と、この４本の柱の下端部を矩形状の辺に沿って連結した鋼製断面コ字形長尺体の床梁とからなる骨格を備えている。
【０００５】
そして、この骨格の相対する天井梁に天井野縁を差し渡し、この天井野縁の下面に天井面材を取り付けて天井を形成し、相対する床梁に床小梁を差し渡し、この床小梁の上に床根太を取り付け、この床根太の上に床面材を取り付けて床を形成したものである。
この建物ユニットは工場で製造し、この複数個の建物ユニットを施工現場に運搬し、施工現場で据え付け、相互に接続して組み立てるのであるが、この際の建物ユニットを接続する構造としては、特許文献３に記載されている構造が知られている。
【０００６】
この特許文献３に記載されている建物ユニットの連結構造は、対峙する床梁の断面コ字形のウエッブ同士や天井梁の断面コ字形のウエッブ同士をボルト・ナットで接続し、下階の建物ユニットの断面コ字形長尺体の天井梁の上側フランジと上階の建物ユニットの断面コ字形長尺体の床梁の下側フランジとをボルトナットで接続するものである。
【０００７】
【特許文献１】
特開平４−１７４１４７号公報
【特許文献２】
特公昭６１−４２０６１号公報
【特許文献３】
特公平６−１５７８５号公報
【０００８】
【発明が解決しようとする課題】
一般に、ユニット建物に組み立てられる建物ユニットは、現場施工期間を短くするために、特許文献２に記載あるように、床面材や天井面材を工場で取り付けて、現場施工工数を少なくすることが多い。
しかし、このように床面材や天井面材を工場で取り付けていると、床面材と天井面材の間にある空間は塞がれるので、床面材と天井面材との間にあるもの（特許文献１では建物ユニットの下方や上方に設けられている溝型鋼）を、また、特許文献３記載のユニット建物では、床梁や天井梁を接続することができなくなる。
【０００９】
従って、工場で床面材や天井面材を取り付けたときには、床面材または天井面材に貫通孔を設け、この貫通孔から手を差し入れて床梁や天井梁を接続していた。
この接続作業を更に詳細に説明すると、ボルトとナットが空周りしないように、両方の手にそれぞれラチェット付きスパナやモンキーレンチやトルクレンチ等の回転具を持ち、貫通孔に回転具を持った両手を入れ、床面材と天井面材との間の狭い場所で、一方の回転具でボルト・ナットのどちから一方を固定して、他方の回転具でボルト・ナットの他方を回転させて巻き締めていた。
【００１０】
しかし、ユニット建物では、通常、現場施工工数を少なくするために、この貫通孔を、例えば１辺が４０ｃｍの正方形のように、できるだけ小さくしているが、この小さい貫通孔から手を入れ、床面材と天井面材の間の狭い場所でボルト・ナットを巻き締める作業は困難である。特に、天井梁のフランジと床梁のフランジを巻き締めるときのように、水平方向に巻き締める作業は困難である。
更に、ボルトが高力ボルトのように、強く巻き締める必要がある場合には、特に困難である。
【００１１】
このように、狭い場所でのボルト・ナットを巻き締める作業は、ユニット建物の施工だけにかぎらず、その他の場合、例えば、その他の建物においても、発生するが、この場合でも、施工が困難である。
そこで、この発明の目的は、狭い場所でも、ボルト・ナットを巻き締めることのできるボルト回転止め治具と、このボルト回転止め治具を使用してボルトを巻き締めるボルトの締付方法及び建物の施工方法を提供することである。
【００１２】
【課題を解決するための手段】
本発明は、上記目的を達成するためになしたものであって、請求項１に記載の発明は、ボルト固定部材と係止部材と駆動部材とからなるボルト回転止め治具であって、前記ボルト固定部材には、先端部にボルトの頭またはナットを固定する固定部が設けられ、前記係止部材には、前部に係止部が設けられ、この係止部材がボルト固定部材に前後方向に移動可能に取り付けられ、前記駆動部材は、係止部材をボルト固定部材の前後方向に移動させるものであって、接続する板体に取り付けられたボルトの頭またはナットにボルト固定部材の固定部を取り付け、駆動部材で係止部材をボルト固定部材の先端方向又はその逆方向に移動させたときに係止部材の係止部が接続する板体に係止されて、係止部材が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される構造になされているものである。
【００１３】
この請求項１に記載の発明におけるボルトの頭またはナットを固定する固定部とは、ボルトの頭またはナットが空回りしないように固定するものであって、かかる固定部としては、種々な構造がある。例えば、略平行な２本の棒状体であって、この２本の棒状体の間にボルトの頭またはナットを挟んで固定する構造でもよいし、ボルトの頭またはナットに嵌合するボルトの頭またはナットと略同じ形状の通孔でもよいし、ラチェットのように、周縁部にボルトの頭またはナットの角部が嵌合する凹凸が設けられた通孔でもよいが、請求項２記載の発明のように、略同じ形状の通孔や周縁部に凹凸を設けた通孔のようなボルトの頭またはナットに嵌合する通孔が好ましい。
【００１４】
また、この請求項１記載の発明では、駆動部材が、係止部材をボルト固定部材の先端方向に移動させるものであり、この駆動部材で係止部材をボルト固定部材の先端方向に移動させたときに係止部材が接続する板体に係止されて、係止部材が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される構造になっているが、かかる駆動部材と係止部材の構造としては種々なものがある。例えば、係止部材とボルト固定部材との間にスプリングバネを設けると同時に、係止部材とボルト固定部材とに引っ掛かりを設け、スプリングバネを変形させながら係止部材をボルト固定部材の先端方向に移動させ、係止部材をボルト固定部材に引っ掛けて、スプリングパネで係止部材を板体の縁部に押え付け、ボルト固定部材に設けられている係止部を接続する板体に係止して、係止部材が落下せず、且つ、ボルトの頭またはナットが回転不能に固定する構造にしてもよい。なお、この際の駆動部材はスプリングバネである。
【００１５】
しかし、請求項２記載のように、ボルト固定部材の棒状部を係止部材の筒部の中にボルト固定部材の前後方向に移動可能に挿入し、駆動部材本体をボルト固定部材をネジ孔に螺入出自在に螺合していて、ボルト固定部材の固定部でボルトの頭またはナットを固定し、駆動部材本体をネジ孔に螺入してボルト固定部材の先端方向に移動させたときに、この駆動部材本体の先端が係止部材の押さえ部を押し、押された係止部材の係止部である係止爪が接続する板体に係止する構造にすると、簡単な構造で安価に製造できるので好ましい。
【００１６】
即ち、請求項２記載の発明は、ボルト固定部材と係止部材と駆動部材とからなるボルト回転止め治具であって、前記ボルト固定部材は、棒状部と、この棒状部の先端部に設けられた固定部と、棒状部の後部に設けられたネジ孔とからなり、この固定部は、ボルトの頭またはナットに嵌合する多角形の通孔であり、前記係止部材は、筒部と、この筒部の前部に設けられた係止爪と、筒部の後部に設けられた押さえ部とからなり、前記駆動部材は、外周面にボルト固定部材のネジ孔に螺合する雄ネジを有する棒状の駆動部材本体と、この駆動部材本体の後部に設けられたハンドルとからなり、ボルト固定部材の棒状部が係止部材の筒部の中にボルト固定部材の前後方向に移動可能に挿入され、駆動部材本体がボルト固定部材のネジ孔に螺入出自在に螺合されていて、接続する板体に取り付けられたボルトの頭またはナットにボルト固定部材の固定部を取り付け、ハンドルを回転させて駆動部材本体をボルト固定部材の先端方向に移動させたときに、この駆動部材本体の先端が係止部材の押さえ部を押し、押された係止部材の係止爪が接続する板体に係止されて、係止部材が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される構造になされているものである。
【００１７】
請求項３記載の発明は、通孔を有する複数枚の接続する板体を通孔が連通する状態に重合し、この複数枚の板体の通孔にボルトの軸部を貫通させ、この貫通したボルトの軸部にナットを螺入し、このボルトの頭またはナットに請求項１または２記載のボルト回転止め治具の固定部を取り付け、駆動部材で係止部材をボルト固定部材の先端方向又はその逆方向に移動させて、係止部材の係止部または係止爪を板体に係止し、反対側のナットまたはボルトの頭を回転具で回転させてボルトを巻き締めるボルトの締付方法を特徴とするものである。
【００１８】
請求項４記載の発明は、床面材と天井面材が取り付けられた建物ユニットを上下に据え付け、上階の建物ユニットの床梁と下階の建物ユニットの天井梁とを連結する建物の施工方法であって、前記建物ユニットの上階の床梁と下階の天井梁には、据え付けたときに対峙する位置に通孔が設けられ、この通孔近傍の床面材または天井面材には、貫通孔が設けられていて、下階の建物ユニットの上に上階の建物ユニットを据え付け、床面材または天井面材の貫通孔からボルトとナットを挿入して床梁と天井梁の通孔にボルトの軸部を貫通させ、この貫通したボルトの軸部にナットを螺入し、このボルトの頭またはナットに請求項１または２記載のボルト回転止め治具の固定部を取り付け、駆動部材で係止部材をボルト固定部材の先端方向又はその逆方向に移動させて、係止部材の係止部または係止爪を床梁または天井梁の縁部に係止し、反対側のナットまたはボルトの頭を回転具で回転させてボルトを巻き締めるものである。
【００１９】
（作用）
請求項１記載の発明では、ボルト固定部材と係止部材と駆動部材とからなるボルト回転止め治具であって、前記ボルト固定部材には、先端部にボルトの頭またはナットを固定する固定部が設けられ、前記係止部材には、前部に係止部が設けられ、この係止部材がボルト固定部材に前後方向に移動可能に取り付けられ、前記駆動部材は、係止部材をボルト固定部材の前後方向に移動させるものであって、接続する板体に取り付けられたボルトの頭またはナットにボルト固定部材の固定部を取り付け、駆動部材で係止部材をボルト固定部材の先端方向又はその逆方向に移動させたときに係止部材の係止部が接続する板体に係止されて、係止部材が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される構造になされているので、このボルト回転止め治具を次に示すように使用することで、狭い場所でもボルト・ナットを簡単に巻き締めることができる。
【００２０】
即ち、ボルト・ナットで接続しようとする板体に通孔を設け、この通孔を有する複数枚の板体を、この通孔が連通するように、合わせる。
そして、この接続する板体の通孔にボルトの軸部を貫通させ、この貫通したボルトの軸部にナットを螺入し、このボルトの頭またはナットに固定部を取り付ける。
【００２１】
次に、駆動部材をボルト固定部材の先端方向又はその逆方向に移動させ、係止部材の係止部を接続する板体に係止させる。
すると、駆動部材は、係止部材をボルト固定部材の前後方向に移動させるものであり、接続する板体に取り付けられたボルトの頭またはナットにボルト固定部材の固定部を取り付け、駆動部材で係止部材をボルト固定部材の先端方向又はその逆方向に移動させたときに係止部材の係止部が接続する板体に係止されて、係止部材が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される構造になされているので、ボルトの頭またはナットに固定部を取り付け、駆動部材で係止部材をボルト固定部材の先端方向又はその逆方向に移動させ、係止部材の係止部を接続する板体に係止させると、係止部材が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される。
【００２２】
従って、手を放しても係止部材、即ち、ボルト回転止め治具が落下しない。
次に、反対側のナットまたはボルトの頭をラチェットやトルクレンチ等の回転具で回転させてボルトを巻き締める。
すると、ボルトの頭またはナットがボルト固定部材の固定部で回転不能に固定されているので、反対側のナットまたはボルトの頭を回転具で回転しても、ボルトやナットが空回りすることがない。
また、ボルト回転止め治具が落下しないので、ボルト回転止め治具を持つ必要がなく、回転具でボルト・ナットを簡単に強固に巻き締めることができる。
従って、狭い場所でも簡単に強固に巻き締めることができる。
【００２３】
請求項２記載の発明では、ボルト固定部材と係止部材と駆動部材とからなるボルト回転止め治具であって、前記ボルト固定部材は、棒状部と、この棒状部の先端部に設けられた固定部と、棒状部の後部に設けられたネジ孔とからなり、この固定部は、ボルトの頭またはナットに嵌合する多角形の通孔であり、前記係止部材は、筒部と、この筒部の前部に設けられた係止爪と、筒部の後部に設けられた押さえ部とからなり、前記駆動部材は、外周面にボルト固定部材のネジ孔に螺合する雄ネジを有する棒状の駆動部材本体と、この駆動部材本体の後部に設けられたハンドルとからなり、ボルト固定部材の棒状部が係止部材の筒部の中にボルト固定部材の前後方向に移動可能に挿入され、駆動部材本体がボルト固定部材のネジ孔に螺入出自在に螺合されていて、接続する板材に取り付けられたボルトの頭またはナットにボルト固定部材の固定部を取り付け、ハンドルを回転させて駆動部材本体をボルト固定部材の先端方向に移動させたときに、この駆動部材本体の先端が係止部材の押さえ部を押し、押された係止部材の係止爪が接続する板体に係止されて、係止部材が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される構造になされているので、このボルト回転止め治具は簡単な構造で製造し易く、しかも、このボルト回転止め治具を次に示すように使用すると、狭い場所でもボルト・ナットを簡単に強固に巻き締めることができる。
【００２４】
即ち、ボルト・ナットで接続する複数枚の板体に通孔を設け、この複数枚の板体を、この通孔が連通するように、重合する。
そして、この連通した通孔にボルトの軸部を貫通させ、この貫通したボルトの軸部にナットを螺入する。
次に、このボルトの頭またはナットをボルト固定部材の通孔である固定部の中に挿入すると同時に、この係止部材の後部にある押さえ部を板体の縁に対峙させる。
【００２５】
すると、固定部は、ボルト固定部材の棒状部の先端に設けられているし、係止部材は、筒部と、この筒部の前部に設けられた係止爪と、筒体の後部に設けられた押さえ部とからなり、ボルト固定部材の棒状部が係止部材の筒部の中にボルト固定部材の前後方向に移動可能に挿入されているので、係止部材をボルト固定部材の前後方向に移動させて、固定部から係止部材の係止部までの距離を板体の通孔に貫通したボルトの頭またはナットから板体の縁までの距離より若干長くすることにより、一方の固定部の中にボルトの頭またはナットを挿入して、他方の係止部材の係止部を板体の縁部に対峙させることができる。
【００２６】
そして、固定部は、ボルトの頭またはナットに嵌合する多角形の通孔であるので、このボルトの頭またはナットをこの通孔である固定部の中に挿入して取り付けると、後述の駆動部材本体の先端が係止部材の押さえ部を押し、その結果、係止爪が板体に係止される際に、係止部材の係止部が板体に衝突し、この反動で、固定部が反対方向に押し出されてボルトの頭またはナットがボルト回転止め治具から離れる方向に力が加わるが、固定部である通孔に挿入されているボルトの頭またはナットは、通孔の縁が邪魔をして、通孔から外れない。
【００２７】
次に、駆動部材のハンドルを回して駆動部材本体をボルト固定部材の先端方向に移動させて、係止部材の係止爪を接続する板体の縁部に係止する。
すると、駆動部材は、外周面にボルト固定部材のネジ孔に螺合する雄ネジを有する棒状の駆動部材本体と、この駆動部材本体の後部に設けられたハンドルとからなり、ボルト固定部材の棒状部が係止部材の筒部の中にボルト固定部材の前後方向に移動可能に挿入され、駆動部材本体がボルト固定部材のネジ孔に螺入出自在に螺合されていて、接続する板体に取り付けられたボルトの頭またはナットにボルト固定部材の固定部を取り付け、ハンドルを回転させて駆動部材本体をボルト固定部材の先端方向に移動させたときに、この駆動部材本体の先端が係止部材の押さえ部を押し、押された係止部材の係止爪が接続する板体に係止されて、係止部材が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される構造になされているので、ハンドルを回転させると、駆動部材本体が回転し、この駆動部材本体の外周面に設けられた雄ネジが本体の駆動部に設けられたネジ孔に沿って回転して、駆動部材がボルト固定部材の先端方向に移動し、この駆動部材本体の先端が係止部材の押さえ部材を押し、その結果、係止部材がボルト固定部材の先端方向に移動し、係止部材の筒部の前部に設けられている係止爪が板体に衝突し、この板体に係止部材の係止爪が係止される。
【００２８】
すると、係止部材が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される。
従って、手を放しても係止部材、即ち、ボルト回転止め治具が落下しない。
次に、反対側のナットまたはボルトの頭をラチェットやトルクレンチ等の回転具で回転させてボルトを巻き締める。
【００２９】
すると、ボルトの頭またはナットが回転不能に固定されているので、反対側のナットまたはボルトの頭を回転具で回転させても、ボルトやナットが空回りすることがない。
また、ボルト回転止め治具が落下しないので、ボルト回転止め治具を持つ必要がなく、回転具でボルト・ナットを簡単に強固に巻き締めることができる。
従って、狭い場所でも簡単に強固に巻き締めることができる。
【００３０】
請求項３記載の発明では、通孔を有する複数枚の接続する板体を通孔が連通する状態に重合し、この複数枚の板体の通孔にボルトの軸部を貫通させ、この貫通したボルトの軸部にナットを螺入し、このボルトの頭またはナットに請求項１または２記載のボルト回転止め治具の固定部を取り付け、駆動部材で係止部材をボルト固定部材の先端方向又はその逆方向に移動させて、係止部材の係止部または係止爪を板体に係止し、反対側のナットまたはボルトの頭を回転具で回転させてボルトを巻き締めるボルトの締付方法であるので、請求項１または請求項２記載のボルト回転止め治具の項で説明したように、ボルトの頭またはナットにボルト回転止め治具の固定部を取り付け、駆動部材で係止部材をボルト固定部材の先端方向又はその逆方向に移動させて、係止部材の係止部または係止爪を接続する板体に係止させると、係止部材が落下せず、且つ、ボルト頭またはナットが回転不能に固定される。
【００３１】
次に、反対側のナットまたはボルトの頭を回転具で回転させて巻き締めても、ボルトナットが空回りすることない。
また、係止部材、即ち、ボルト回転止め治具が落下しないので、回転具でボルト・ナットを簡単に強固に巻き締めることができる。
従って、狭い場所でも簡単に強固に巻き締めることができる。
【００３２】
請求項４記載の発明では、床面材と天井面材が取り付けられた建物ユニットを上下に据え付け、上階の建物ユニットの床梁と下階の建物ユニットの天井梁とを連結する建物の施工方法であって、前記建物ユニットの上階の床梁と下階の天井梁には、据え付けたときに対峙する位置に通孔が設けられ、この通孔近傍の床面材または天井面材には、貫通孔が設けられていて、下階の建物ユニットの上に上階の建物ユニットを据え付け、床面材または天井面材の貫通孔からボルトとナットを挿入して床梁と天井梁の通孔にボルトの軸部を貫通させ、この貫通したボルトの軸部にナットを螺入し、このボルトの頭またはナットに請求項１または２記載のボルト回転止め治材の固定部を取り付け、駆動部材で係止部材をボルト固定部材の先端方向又はその逆方向に移動させて、係止部材の係止部または係止爪を床梁または天井梁の縁部に係止し、反対側のナットまたはボルトの頭を回転具で回転させてボルトを巻き締めるので、次に示すように、床面材または天井面材に設けられている貫通孔が、例えば、１辺が４０ｃｍの正方形のように小さく、しかも、天井面材と床面材の間の狭い場所でも、この貫通孔から回転具を持った手を差し入れて、ボルト・ナットを簡単に強固に巻き締めることができる。
【００３３】
即ち、下階の建物ユニットの上に上階の建物ユニットを据え付ける。
すると、建物ユニットの上階の床梁と下階の天井梁には、据え付けたときに対峙する位置にそれぞれ通孔が設けられているので、下階の建物ユニットの上に上階の建物ユニットを据え付けると、床梁の通孔と天井梁の通孔が連通する。
【００３４】
次に、床面材または天井面材に設けられている貫通孔からボルトとナットを入れて、この連通している通孔にボルトの軸部を貫通させ、この貫通したボルトの軸部にナットを螺入する。
すると、通孔近傍の床面材または天井面材に貫通孔が設けられているので、床面材または天井面材に設けられている貫通孔からボルトとナットを入れることができるし、連通している通孔にボルトの軸部を貫通させ、この貫通したボルトの軸部にナットを螺入することができる。この作業は、力を必要とせず、小さい貫通孔であっても、この貫通孔から手を差し入れて簡単に行うことができる。
【００３５】
次に、このボルトの頭またはナットに請求項１または２記載のボルト回転止め治具の固定部を取り付け、駆動部材をボルト固定部材の先端方向に移動させて、係止部材の係止部または係止爪を床梁や天井梁の縁部に係止させる。
すると、請求項１または２の発明の作用の項で説明したように、係止部材、即ち、ボルト回転止め治具が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される。従って、手を放してもボルト回転止め治具が板体から外れることがない。
【００３６】
次に、反対側のナットまたはボルトの頭をラチェットやトルクレンチ等の回転具で回転させてボルトを巻き締める。
すると、ボルトの頭またはナットが回転不能に固定されているので、反対側のナットまたはボルトの頭を回転具で回転しても、ボルトやナットが空回りすることがない。
【００３７】
また、ボルト回転止め治具が落下しないので、ボルト回転止め治具を持つ必要がなく、回転具でボルトの頭またはナットを簡単に強固に巻き締めることができる。
従って、天井面材と床面材の間の狭い場所で、しかも、床面材または天井面材に設けられている貫通孔が、例えば、１辺が４０ｃｍの正方形であるように小さくても、ボルト・ナットを簡単に強固に巻き締めることができる。
【００３８】
【発明の実施の形態】
以下、本発明の実施の形態を実施例で説明する。
（実施例１）
図１〜図５は本発明をユニット建物の施工方法に適用した一実施例を示すもので、図１はユニット建物を示す斜視図、図２は建物ユニットを示す一部切欠斜視図、図３は１階の天井梁の上側フランジの通孔と２階の床梁の下側フランジの通孔にボルトを挿入し、ナットを螺入している状態を示す斜視図、図４はボルト回転止め治具でボルトの頭を固定している状態を示す正面図、図５はボルト回転止め治具を示すもので、（イ）は正面図、（ロ）は平面図である。
【００３９】
図１〜図５において、Ｕはユニット建物であり、このユニット建物Ｕは、図１に示すように、基礎９の上に９個の建物ユニット１が据え付けられて１階が形成され、この１階の建物ユニット１の上に９個の建物ユニット１が据え付けられて２階が形成され、この２階の建物ユニット１の上に屋根パネル２が取り付けられたものである。
【００４０】
このユニット建物Ｕを構成する建物ユニット１は、図２に示すように、矩形状の四隅に立設した４本の鋼製四角筒状体の柱１１と、この４本の柱１１の下端部を矩形状の辺に沿って連結した４本の鋼製断面コ字形長尺体の床梁１２と、この４本の柱１１の上端部を矩形状の辺に沿って連結した４本の鋼製断面コ字形長尺体の天井梁１３とからなる骨格を有する。
【００４１】
そして、建物ユニット１は、この骨格の相対する床梁１２に鋼製四角筒状体の床小梁１４が差し渡され、この床小梁１４の上に木製の床根太１５が取り付けられ、この床根太１５の上にパーチクルボードの床面材１６が取り付けられて床が形成され、相対する天井梁１３に木製の天井野縁１７が差し渡されて取り付けられ、この天井野縁１７の下面に天井面材１８が取り付けられて天井が形成されたものである。
【００４２】
また、外壁を設ける場所には、床梁１２と天井梁１３とに間柱１９が差し渡され、この間柱１９に図示しない外壁パネルと内壁パネルが取り付けられ、この外壁パネルと内壁パネルの間にグラスウールの断熱材が取り付けられて外壁が形成されている。
そして、２階の建物ユニット１の四隅の床面材１、即ち、柱１１近傍の床面材１６には、１辺の長さが略４０ｃｍの略正方形の貫通孔３が設けられている。
【００４３】
なお、柱１１に床梁１２を取り付ける際には、床梁１２にジョイントピース１２９を取り付け、このジョイントピース１２９を介して床梁１２が柱１１に取り付けていて、柱１１近傍では、床梁１２とジョイントビース１２９とが重なっている。
しかし、このジョイントピース１２９は床梁１２の一部であるので、この実施例では、このジョイントピース１２９を含めて床梁１２とする。
【００４４】
また、柱１１に天井梁１３を取り付ける際には、天井梁１３にジョイントピース１３９を取り付け、このジョイントピース１２３を介して天井梁１３が柱１１に取り付けられていて、柱１１近傍では、天井梁１３とジョイントビース１３９とが重なっている。
しかし、このジョイントピース１３９は天井梁１３の一部であるので、この実施例では、このジョイントピース１３９を含めて天井梁１３とする。
【００４５】
４は、ボルトであり、このボルト４は、図４に示すように、ボルトの頭４１と軸部４２とからなるＭ１６×６５Ｌの高力ボルトである。
４５は、このボルト４の軸部４２に螺合するナットである。
４６は環状の座金である。
４７は大きさが９０ｍｍ×３２ｍｍで厚みが１６ｍｍの金属製の角座金プレートであり、ボルト・ナットを強く巻き締めたときに、ボルト・ナットにかかる力を角座金プレート４７で拡散して床梁１２や天井梁１３が変形しないようにするものである。
【００４６】
４８は厚みが略１ｍｍの金属製のスペーサーであり、このスペーサー４８は、図３に示すように、床梁１２と天井梁１３の間に挿入されて、この隙間を埋めてボルト・ナットの締め付けを十分に行うことができるようにするものである。
なお、床梁１２と天井梁１３の間の隙間が１ｍｍ以下の場合には、ボルト・ナットを巻き締めたときに、床梁１２と天井梁１３が密着し、十分に巻き締めることができるので挿入する必要がないし、床梁１２と天井梁１３との間の隙間が数ｍｍあり、スペーサーが複数枚挿入できる場合には、複数枚挿入する。
【００４７】
また、この角座金プレート４７やスペーサー４８には、略中央にボルト４の軸部４２が通過する大きさの通孔が設けられている。
Ｍはボルト回転止め治具であり、このボルト回転止め治具Ｍは、図５に示すように、ボルト固定部材５と、係止部材６と駆動部材７とからなる。
ボルト固定部材５は、棒状部５１と、この棒状部５２の先端部に設けられた固定部５１と、棒状部５２の後部に設けられたネジ孔５３とからなる。そして、この固定部５１は、ボルトの頭４２またはナット４５に嵌合する多角形の通孔である。
【００４８】
なお、この棒状部５２とネジ孔５３との間には湾曲部５５があって、ボルトの頭やナットに固定部５１を取り付けたときに棒状部５２が床梁１２や天井梁１３に沿うようになっている。
係止部材６は、筒部６１と、この筒部６１の前部に設けられた係止爪６２と、筒体６１の後部に設けられた押さえ部６３とからなる。
この筒部６１は金属板をＵ字形に曲げた本体６１１と、この本体６１１の開口部を塞ぐ蓋体６１２とからなり、この本体６１１と蓋体６１２とで筒が形成されている。そして、係止爪６２は本体６１１の先端が延長され略直角に折り曲げられて立設された板体であり、押さえ部６３は本体６１１の後端が延長され略直角に折り曲げられて立設された板体である。
【００４９】
駆動部材７は、外周面にボルト固定部材５のネジ孔５３に螺合する雄ネジ７１１を有する棒状の駆動部材本体７１と、この駆動部材本体７１の後部に設けられたハンドル７２とからなる。
そして、ボルト回転止め治具Ｍは、ボルト固定部材５の棒状部５２が係止部材６の筒部６１の中に挿入され、駆動部材本体７１がボルト固定部材５のネジ孔５２に螺入出自在に螺合されたものである。
【００５０】
そして、ボルト固定部材５の固定部５１でボルトの頭４２またはナット４５を取り付け、ハンドル７２を回転させて駆動部材本体７１をネジ孔５３に螺入すると、駆動部材本体７１がボルト固定部材５の先端方向、即ち、駆動部材本体７１を接続する天井梁１３や床梁１２の方向に移動し、この駆動部材本体７１の先端が係止部材６の押さえ部６３を押し、押された押さえ部６３と一体になっている係止部材６の係止爪６２が天井梁１３や床梁１２に係止ようになっている。その結果、係止部材６が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される。
屋根パネル２は従来の折版屋根と略同じであるので説明を省略する。
【００５１】
次に、このユニット建物Ｕの施工方法および作用について説明する。
工場で、図２に示す建物ユニット１や屋根パネル２を製造する。
そして、この建物ユニット１や屋根パネル２を施工現場に運搬する。
施工現場では、予め設けられている基礎９の上に９個の建物ユニット１を据え付けて１階を形成し、この１階の建物ユニット１の上に９個の建物ユニット１を据え付けて２階を形成し、この２階の建物ユニット１の上に屋根パネル９を取り付け、１階と２階の建物ユニットの対峙する床梁１２同士や天井梁１２同士のウエッブをボルト・ナットで接続し、１階の天井梁１３の上側フランジと、この上に対峙する床梁１２の下側フランジを接続し、その他種々な仕上げを行うと、図１に示すユニット建物Ｕが完成する。
【００５２】
なお、１階の建物ユニット１の柱１１の上端面には、図３に示すようなジョイントピン９５が立設され、２階の建物ユニット１の柱１１の下端面には通孔が設けられていて、この１階の建物ユニット１の柱１１のジョイントピン９５を２階の建物ユニット１の柱１１の通孔に挿入しながら、１階の建物ユニット１の上に２階の建物ユニットを据え付ける。
このようにすることにより、２階の建物ユニット１が１階の建物ユニット１の所定位置に取り付けられるのである。
【００５３】
次に、この１階の建物ユニット１の天井梁１３の上側フランジ１３１と２階の建物ユニット１の床梁１２の下側フランジ１２１を連結する施工方法について説明する。
工場で１階の建物ユニット１を製造する際に、天井梁１３の矩形状の四隅近傍の上側フランジ１３１には通孔１３２を設けておく。
【００５４】
また、２階の建物ユニット１の床梁の下側フランジ１２１には、１階の建物ユニット１の上に２階の建物ユニット１を据え付けたときに、１階の建物ユニット１の天井梁１３の通孔１３２に対峙する位置に、通孔１２２を設けておく。
また、矩形状の四隅の通孔１２２、１３２の近傍にある床面材１６には、貫通孔３を設けておく。
【００５５】
施工現場で、１階の建物ユニット１の上に２階の建物ユニット１を据え付けると、２階の建物ユニット１の床梁の下側フランジ１２１と１階の建物ユニット１の天井梁の上側フランジ１３１には、１階の建物ユニット１の上に２階の建物ユニット１を据え付けたときに対峙する位置に、通孔１２２が設けられているので、上記のように据え付けると、床梁１２の通孔１２２と天井梁１３の通孔１３２が連通する。
そして、図３に示すように、１階の天井梁１３の上側フランジ１３１と２階の下側フランジ１２１の間にスペーサー４８を挿入して、この間の隙間を塞ぐ。
この際、スペーサーが挿入できない場合には、挿入しないし、スペーサー４８が１枚で不足する場合には、複数枚挿入する。
【００５６】
次に、ボルト４の軸部４２に座金４６や角座金プレート４７を通したボルト４を貫通孔３から入れて、ボルト４の軸部４２を１階の天井梁１３の通孔１３２、スペーサー４８、２階の床梁１２の通孔１２２の順に通す。
次に、貫通孔３から角座金プレート４７、座金４６、ナット４５を入れ、この通されたボルト４の軸部４２に、角座金プレート４７や座金４６の順に通し、ナット４５を螺入する。
【００５７】
すると、通孔１２２、１３２近傍の床面材１６には貫通孔３が設けられいるので、床面材１６に設けられている貫通孔３からボルト４とナット４５等を入れたり、連通している通孔１２２、１３２にボルト４の軸部４２を通し、この通されたボルト４の軸部４２にナット４５を螺入する作業は、力を必要とない。従って、小さい貫通孔３でも、この貫通孔３から手を差し入れて簡単に行うことができる。
次に、貫通孔３からボルト回転止め治具Ｍを入れて、係止部材６の係止爪６２を床梁１２の縁に対峙させた状態で、このボルト回転止め治具Ｍのボルト固定部材５の固定部５１をボルト４の頭４１に取り付ける。
【００５８】
すると、ボルト固定部材５の棒状部５２の先端に設けられている固定部５１は、ボルト４の頭４１やナット４５に嵌合する多角形の通孔であるし、係止部材６は、筒部６１と、この筒部６１の前部に設けられた係止爪６２と、筒部６１の後部に設けられた押さえ部６３とからなり、ボルト固定部材５の棒状部５２が係止部材６の筒部６１の中にボルト固定部材５の前後方向に移動可能に挿入されているので、係止部材６を移動させて、固定部５１から係止部材６の係止爪６２までの距離を床梁１２の通孔１２２に貫通したボルト４の頭４１から床梁１２の縁までの距離より若干長くすることにより、一方の固定部５１にボルト４の頭４１を取り付け、他方の係止爪６２を板体の縁部に対峙させることができる。
【００５９】
このボルト４の頭４２をこの通孔である固定部５１を取り付けると、固定部５１が通孔であるので、後述の駆動部材本体７１の先端が係止部材６の押さえ部６３を押し、その結果、係止爪６２が床梁１２に係止される際に、係止部材６が床梁１２に衝突し、この反動で、固定部５１が押し戻されてボルト４の頭４１がボルト回転止め治具から離れる方向に力がかかるが、通孔である固定部５１に挿入されているボルト４の頭４１は通孔の縁に引っ掛かって固定部５１から外れないようになる。
【００６０】
次に、駆動部材７のハンドル７２を回して床梁１２方向に駆動部材７を移動させて、係止部材６を床梁１２の縁部に係止させる。
すると、駆動部材７は、外周面にボルト固定部材５のネジ孔５３に螺合する雄ネジを有する棒状の駆動部材本体７１と、この駆動部材本体７１の後部に設けられたハンドル７２とからなり、駆動部材本体７１がボルト固定部材５のネジ孔５３に螺入出自在に螺合されていて、ボルト固定部材５の固定部５１をボルト４の頭４１に取り付け、ハンドル７２を回転させて駆動部材本体７１をネジ孔５３に螺入し、ボルト固定部材５の先端方向に移動させたときに、この駆動部材本体７１の先端が係止部材６の押さえ部６３を押し、押された係止部材６の先端に設けられている係止爪６２が床梁１２や天井梁１３に係止して、係止部材６が落下せず、且つ、ボルトの頭４１が回転不能に固定される構造になされているから、ハンドル７２を回転させて、係止爪６２を床梁１２や天井梁１３に係止させると、係止部材６、即ち、ボルト回転止め治具Ｍが落下せず、且つ、ボルトの頭４１が回転不能に固定される。
【００６１】
従って、手を放してもボルト回転止め治具Ｍが床梁１２や天井梁１３から外れない。
次に、反対側のナットまたはボルト４の頭４２に回転具である２８０Ｎ・ｍのトルクレンチを取り付け、このトルクレンチの把手を貫通孔３から出し、この把手を持って、床面材１６の上で回転させてボルト４を巻き締める。
すると、ボルト４の頭４１が回転不能に固定されているので、反対側のナット４５をトルクレンチで回転させても、ボルトやナットが空回りすることがない。
【００６２】
また、手を放してもボルト回転止め治具Ｍが落下しないので、このボルト回転止め治具Ｍを持つ必要がなく、狭い場所でも、小さい床面材１６に設けられた貫通孔３を通過させたトルクレンチの把手を持ってボルト４を簡単に強固に巻き締めることができる。
ボルト・ナットを巻き締めた後に、回転具を貫通孔３から引き出し、ハンドル７２を反対方向に回転させて駆動部材本体７１を後退させて、ボルト回転止め治具Ｍを外し、貫通孔３から取り出し、この貫通孔３を床面材で塞ぐと、床梁１２と天井梁１３の接続が終了する。
【００６３】
（実施例２）
図６は本発明の他の実施例を示すもので、ボルト回転止め治具Ｍａを示す正面図である。
【００６４】
この図６に示す実施例２のボルト回転止め治具Ｍａを図１〜図５に示す実施例１と比較すると、ボルト固定部材５ａの湾曲部５５ａの高さと、固定部５１ａの向きが若干異なる。
即ち、このボルト回転止め治具Ｍａは、床梁のボルトの向きと位置が、丁度、固定部５１ａをボルトの頭に挿入したときに、係止具６ａの係止爪６２ａが床梁に沿う場合に使用するものである。
その他の構造、使用方法及び作用は実施例１と略同じであるので、説明を省略する。
【００６５】
以上、本発明を実施例で説明したが、この実施例を本発明の要旨を逸脱しない範囲で変更されていてもよい。
例えば、実施例では係止爪を先端方向に向けているが、ボルト固定部材を固定部より先端方向に延設し、係止爪を固定部を越えた場所に設け、且つ、この係止爪を後端方向に向けさせてもよい。この際には、駆動部材で係止部材をボルト固定部材の後端方向に移動させて、係止部材が落下せず、且つ、ボルトの頭またはナットを回転不能に固定すればよい。
【００６６】
【発明の効果】
以上説明してきたように、請求項１に記載の発明は、ボルト固定部材と係止部材と駆動部材とからなるボルト回転止め治具であって、前記ボルト固定部材には、先端部にボルトの頭またはナットを固定する固定部が設けられ、前記係止部材には、前部に係止部が設けられ、この係止部材がボルト固定部材の前後方向に移動可能に取り付けられ、前記駆動部材は、係止部材をボルト固定部材の前後方向に移動させるものであって、接続する板体に取り付けられたボルトの頭またはナットにボルト固定部材の固定部を取り付け、駆動部材で係止部材をボルト固定部材の先端方向又はその逆方向に移動させたときに係止部材の係止部が接続する板体に係止されて、係止部材が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される構造になされているから、このボルト回転止め治具を使用して、狭い場所でも簡単に強固にボルト・ナットを巻き締めることができる。
【００６７】
請求項２記載の発明は、ボルト固定部材と係止部材と駆動部材とからなるボルト回転止め治具であって、前記ボルト固定部材は、棒状部と、この棒状部の先端部に設けられた固定部と、棒状部の後部に設けられたネジ孔とからなり、この固定部は、ボルトの頭またはナットに嵌合する多角形の通孔であり、前記係止部材は、筒部と、この筒部の前部に設けられた係止爪と、筒部の後部に設けられた押さえ部とからなり、前記駆動部材は、外周面にボルト固定部材のネジ孔に螺合する雄ネジを有する棒状の駆動部材本体と、この駆動部材本体の後部に設けられたハンドルとからなり、ボルト固定部材の棒状部が係止部材の筒部の中にボルト固定部材の前後方向に移動可能に挿入され、駆動部材本体がボルト固定部材のネジ孔に螺入出自在に螺合されていて、接続する板体に取り付けられたボルトの頭またはナットにボルト固定部材の固定部を取り付け、ハンドルを回転させて駆動部材本体をボルト固定部材の先端方向に移動させたときに、この駆動部材本体の先端が係止部材の押さえ部を押し、押された係止部材の係止爪が接続する板体に係止されて、係止部材が落下せず、且つ、ボルトの頭またはナットが回転不能に固定される構造になされているから、このボルト回転止め治具は簡単な構造で製造し易く、しかも、このボルト回転止め治具を使用して、狭い場所でもボルト・ナットを簡単に強固に巻き締めることができる。
【００６８】
請求項３記載の発明は、通孔を有する複数枚の接続する板体を通孔が連通する状態に重合し、この複数枚の板体の通孔にボルトの軸部を貫通させ、この貫通したボルトの軸部にナットを螺入し、このボルトの頭またはナットに請求項１または２記載のボルト回転止め治具の固定部を取り付け、駆動部材で係止部材をボルト固定部材の先端方向又はその逆方向に移動させて、係止部材の係止部または係止爪を板体に係止し、反対側のナットまたはボルトの頭を回転具で回転させてボルトを巻き締めるボルトの締付方法であるから、請求項１または請求項２記載のボルト回転止め治具の項で説明したように、ボルト固定部材の固定部を接続する板体に取り付けられたボルトの頭またはナットに取り付け、係止部材の係止部または係止爪を接続する板体に係止させると、係止部材、即ち、ボルト回転止め治具が落下せず、且つ、ボルトの頭またはナットが回転不能の状態に固定される。
次に、反対側のナットまたはボルトの頭を回転具で回転すると、ボルトやナットが空回りすることがなく、ボルト・ナットを簡単に強固に巻き締めることができる。即ち、狭い場所でも巻き締めすることができる。
【００６９】
請求項４記載の発明は、床面材と天井面材が取り付けられた建物ユニットを上下に据え付け、上階の建物ユニットの床梁と下階の建物ユニットの天井梁とを連結する建物の施工方法であって、前記建物ユニットの上階の床梁と下階の天井梁には、据え付けたときに対峙する位置に通孔が設けられ、この通孔近傍の床面材または天井面材には、貫通孔が設けられていて、下階の建物ユニットの上に上階の建物ユニットを据え付け、床面材または天井面材の貫通孔からボルトとナットを挿入して床梁と天井梁の通孔にボルトの軸部を貫通させ、この貫通したボルトの軸部にナットを螺入し、このボルトの頭またはナットに請求項１または２記載のボルト回転止め治具の固定部を取り付け、駆動部材で係止部材をボルト固定部材の先端方向又はその逆方向に移動させて、係止部材の係止部または係止爪を床梁または天井梁の縁部に係止し、反対側のナットまたはボルトの頭を回転具で回転させてボルトを巻き締めるから、請求項１または請求項２記載のボルト回転止め治具の項で説明したように、ボルト固定部材の固定部を床梁や天井梁に取り付けられたボルトの頭またはナットに取り付け、係止部材の係止部または係止爪を床梁または天井梁に係止させると、係止部材、即ち、ボルト回転止め治具が落下せず、且つ、ボルトの頭またはナットが回転不能の状態に固定される。
【００７０】
次に、反対側のナットまたはボルトの頭を回転具で回転すると、ボルトやナットが空回りすることがなく、回転具でボルト・ナットを床面材または天井面材に設けられている貫通孔から簡単に強固に巻き締めることができる。即ち、床面材または天井面材に設けられている貫通孔が、例えば、１辺の長さが４０ｃｍの正方形というように小さくても、ボルト・ナットを簡単に巻き締めすることができる。
【図面の簡単な説明】
【図１】本発明をユニット建物の施工方法に適用した一実施例を示すもので、ユニット建物を示す斜視図である。
【図２】建物ユニットを示す一部切欠斜視図である。
【図３】１階の天井梁の上側フランジの通孔と２階の床梁の下側フランジの通孔にボルトを挿入し、ナットを螺入している状態を示す斜視図である。
【図４】ボルト回転止め治具でボルトの頭を固定している状態を示す正面図である。
【図５】ボルト回転止め治具を示すもので、（イ）は正面図、（ロ）は平面図である。
【図６】本発明の他の実施例を示すもので、ボルト回転止め治具Ｍａを示す正面図である。
【符号の説明】
Ｕユニット建物
Ｍ、Ｍａボルト回転止め治具
１建物ユニット
２屋根パネル
３床面材の貫通孔
４ボルト
４１ボルトの頭
４５ナット
５、５ａボルト固定部材
５１、５１ａ固定部
５２棒状部
５３ネジ孔
６、６ａ係止部材
６１筒部
６２、６２ａ係止爪（係止部）
７駆動部材
７１駆動部材本体
７２ハンドル[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bolt rotation stopping jig, a bolt fastening method for tightening a bolt using the bolt rotation stopping jig, and a building construction method.
Particularly, a bolt rotation stopping jig suitable for screwing and tightening a nut into a bolt in a narrow place, a bolt fastening method for tightening a bolt using this bolt rotation stopping jig, and a building construction method About.
[0002]
[Prior art]
Unit buildings are box-shaped, transportable, and internally and externally finished building units and roof units / roof panels manufactured in advance at the factory. Since a plurality of panels are transported to the construction site and assembled at the construction site to form a building, the site construction period is short, and there is a feature that becomes a standardized building with good dimensional accuracy. Widely adopted.
[0003]
As a method of connecting the building unit and the building unit, a method described in Patent Document 1 is known.
In the method of connecting building units described in Patent Document 1, the grooved steel is installed in the lower four rounds of the floor portion of the peripheral wall of the building unit, and the grooved steel is also installed in the upper four rounds. In this method, bolt holes or bolts that match each other are provided in the groove steels that are in contact with each other, and each building unit is installed side by side and connected using the bolt holes of the groove steel and the bolts.
[0004]
On the other hand, various structures are known for building units, but many are described in Patent Document 2.
The building unit described in Patent Document 2 is composed of four steel square cylindrical columns arranged at four corners of a rectangular shape and the upper ends of the four columns connected along a rectangular side. The steel frame has a skeleton composed of a steel cross-section long beam and a steel cross-section long beam that connects the lower ends of the four columns along a rectangular side. Yes.
[0005]
Then, the ceiling edge is passed to the opposite ceiling beam of this skeleton, the ceiling surface material is attached to the lower surface of the ceiling edge to form the ceiling, the floor beam is passed to the opposite floor beam, and the floor beam is A floor joist is attached to the top, and a floor material is attached on the floor joist to form a floor.
This building unit is manufactured at the factory, and the multiple building units are transported to the construction site, installed at the construction site, and connected to each other for assembly. The structure for connecting the building units at this time is patented. The structure described in Document 3 is known.
[0006]
The building unit connecting structure described in Patent Document 3 is such that the U-shaped cross-section webs of the floor beams facing each other and the U-shaped cross-section webs of the ceiling beams are connected to each other by bolts and nuts. The upper flange of the ceiling beam of the U-shaped cross section of the above and the lower flange of the floor beam of the U-shaped long section of the building unit on the upper floor are connected by a bolt and nut.
[0007]
[Patent Document 1]
JP-A-4-174147
[Patent Document 2]
Japanese Examined Patent Publication No. 61-42061
[Patent Document 3]
Japanese Patent Publication No. 6-15785
[0008]
[Problems to be solved by the invention]
In general, building units assembled in unit buildings can be reduced in the number of on-site construction man-hours by installing floor materials and ceiling materials at the factory, as described in Patent Document 2, in order to shorten the on-site construction period. Many.
However, if floor materials and ceiling materials are installed in the factory in this way, the space between the floor materials and the ceiling materials will be blocked, so it will be between the floor materials and the ceiling materials. In the unit building described in Patent Document 3, floor beams and ceiling beams cannot be connected to each other (channel type steel provided below or above the building unit in Patent Document 1).
[0009]
Therefore, when a floor material or a ceiling material is attached in a factory, a through hole is provided in the floor material or the ceiling material, and a floor beam or a ceiling beam is connected by inserting a hand through the through hole.
To explain this connection in more detail, both hands have rotating tools such as a ratchet wrench, monkey wrench, torque wrench, etc. in both hands so that the bolts and nuts do not rotate freely, In a narrow space between the floor and ceiling materials, fix one of the bolts and nuts with one rotary tool, and rotate the other bolt and nut with the other rotary tool and tighten it. It was.
[0010]
However, in unit buildings, this through hole is usually made as small as possible, for example, a square with a side of 40 cm in order to reduce the number of on-site construction man-hours. It is difficult to tighten bolts and nuts in a narrow space between the face material and the ceiling face material. In particular, it is difficult to wind up in the horizontal direction as in the case of tightening the flange of the ceiling beam and the flange of the floor beam.
Furthermore, it is particularly difficult when the bolt needs to be tightly tightened like a high strength bolt.
[0011]
In this way, the work of tightening the bolts and nuts in a narrow place is not limited to the construction of unit buildings, but occurs in other cases, for example, in other buildings, but even in this case, construction is difficult. is there.
Accordingly, an object of the present invention is to provide a bolt rotation stopping jig capable of tightening a bolt and a nut even in a narrow place, a bolt tightening method for tightening a bolt using the bolt rotation stopping jig, and a building It is to provide a construction method.
[0012]
[Means for Solving the Problems]
The present invention was made to achieve the above object, and the invention according to claim 1 is a bolt rotation stopping jig comprising a bolt fixing member, a locking member, and a driving member, The bolt fixing member is provided with a fixing portion for fixing the head or nut of the bolt at the tip portion, and the locking member is provided with a locking portion at the front portion. The drive member moves the locking member in the front-rear direction of the bolt fixing member, and the bolt fixing member is fixed to the head or nut of the bolt attached to the plate to be connected. When the locking member is moved by the drive member in the tip direction of the bolt fixing member or in the opposite direction, the locking member is locked to the connecting plate and the locking member falls. And the bolt head or nut There is what is done to the structure which is non-rotatably fixed.
[0013]
According to the first aspect of the present invention, the fixing portion for fixing the bolt head or nut is fixed so that the bolt head or nut does not run idle, and there are various structures as the fixing portion. . For example, it may be a structure in which two substantially parallel rod-shaped bodies are fixed with a bolt head or nut sandwiched between the two rod-shaped bodies, or a bolt head or a bolt head fitted to the nut. Alternatively, it may be a through hole having substantially the same shape as the nut, or may be a through hole provided with irregularities for fitting the head of the bolt or the corner of the nut, such as a ratchet. As described above, a through hole that fits into the head or nut of a bolt, such as a through hole having substantially the same shape or a through hole provided with irregularities on the peripheral edge portion, is preferable.
[0014]
In the first aspect of the present invention, the driving member moves the locking member in the distal direction of the bolt fixing member. The driving member moves the locking member in the distal direction of the bolt fixing member. Sometimes the locking member is locked to the connecting plate, the locking member does not drop, and the bolt head or nut is fixed so as not to rotate. There are various structures for the stop member. For example, a spring spring is provided between the locking member and the bolt fixing member, and at the same time, a hook is provided between the locking member and the bolt fixing member, and the locking member is moved toward the tip of the bolt fixing member while deforming the spring spring. Move the locking member to the bolt fixing member, press the locking member against the edge of the plate with the spring panel, and lock the locking member provided on the bolt fixing member to the connecting plate. The locking member may not be dropped, and the bolt head or nut may be fixed to be non-rotatable. The driving member at this time is a spring spring.
[0015]
However, as described in claim 2, the rod-shaped portion of the bolt fixing member is inserted into the cylindrical portion of the locking member so as to be movable in the front-rear direction of the bolt fixing member, and the drive member body is used as the screw hole. When the bolt head or nut is fixed at the fixing portion of the bolt fixing member, and the drive member main body is screwed into the screw hole and moved in the distal direction of the bolt fixing member. If the structure is such that the front end of the drive member main body pushes the pressing portion of the locking member, and the locking claw that is the locking portion of the pressed locking member is locked to the plate to be connected, the structure is simple and inexpensive. It is preferable because it can be manufactured.
[0016]
That is, the invention according to claim 2 is a bolt rotation stopping jig comprising a bolt fixing member, a locking member, and a driving member, wherein the bolt fixing member is provided at a rod-shaped portion and a tip portion of the rod-shaped portion. And a screw hole provided at the rear part of the rod-like part. The fixing part is a polygonal through hole that fits into the head or nut of the bolt, and the locking member is a cylindrical part. And a locking claw provided at the front portion of the cylindrical portion and a pressing portion provided at the rear portion of the cylindrical portion, and the drive member is a male screwed into the screw hole of the bolt fixing member on the outer peripheral surface. It consists of a rod-shaped drive member main body with screws and a handle provided at the rear of the drive member main body, and the rod-shaped portion of the bolt fixing member can be moved in the longitudinal direction of the bolt fixing member into the cylinder portion of the locking member The drive member body can be screwed into and out of the screw hole of the bolt fixing member. When the fixing part of the bolt fixing member is attached to the head or nut of the bolt that is screwed and attached to the plate to be connected, and the drive member body is moved in the direction of the tip of the bolt fixing member by rotating the handle The front end of the drive member main body presses the pressing portion of the locking member, and the locking claw of the pressed locking member is locked to the plate body to which the locking member does not fall. The head or nut is fixed to be non-rotatable.
[0017]
In the invention according to claim 3, the plurality of connecting plate members having through holes are polymerized so that the through holes communicate with each other, and the shaft portion of the bolt is passed through the through holes of the plurality of plate members. A nut is screwed into the shaft portion of the bolt, and the fixing portion of the bolt rotation stopping jig according to claim 1 or 2 is attached to the head or nut of the bolt, and the locking member is attached to the front end of the bolt fixing member by the driving member. Or, move it in the opposite direction to lock the locking part or locking claw of the locking member to the plate, rotate the nut or bolt head on the opposite side with a rotating tool, and tighten the bolt. It is characterized by an attaching method.
[0018]
Invention of Claim 4 installs the building unit to which the floor material and the ceiling material were attached up and down, and constructs the building which connects the floor beam of the upper floor building unit and the ceiling beam of the lower floor building unit In the method, the upper floor beam and the lower floor beam of the building unit are provided with a through hole at a position facing each other when installed, and a floor material or a ceiling surface material in the vicinity of the through hole is provided. Is provided with a through-hole, the upper-floor building unit is installed on the lower-floor building unit, and bolts and nuts are inserted through the through-holes in the floor or ceiling flooring to The shaft portion of the bolt is passed through the through hole, and a nut is screwed into the shaft portion of the penetrated bolt. The fixing portion of the bolt rotation stopping jig according to claim 1 or 2 is attached to the head or nut of the bolt, Lock the locking member with the drive member in the direction of the tip of the bolt fixing member or its The locking part or locking claw of the locking member is locked to the edge of the floor beam or ceiling beam, and the nut or bolt head on the opposite side is rotated with a rotating tool to tighten the bolt. Is.
[0019]
(Function)
The invention according to claim 1 is a bolt rotation stopping jig comprising a bolt fixing member, a locking member, and a driving member, wherein the bolt fixing member has a fixing portion for fixing a bolt head or nut to a tip portion. The locking member is provided with a locking portion at the front, and the locking member is attached to the bolt fixing member so as to be movable in the front-rear direction. The driving member fixes the locking member to the bolt. The fixing part of the bolt fixing member is attached to the head or nut of the bolt attached to the plate to be connected, and the locking member is moved by the driving member to the front end direction of the bolt fixing member or its When it is moved in the opposite direction, the locking part of the locking member is locked to the connecting plate, so that the locking member does not fall and the bolt head or nut is fixed so as not to rotate. This button is The use as shown below the door rotation stopping jig can be tightened up the bolts and nuts also easily in narrow spaces.
[0020]
That is, a through hole is provided in a plate body to be connected with a bolt and a nut, and a plurality of plate bodies having the through hole are aligned so that the through hole communicates.
And the axial part of a volt | bolt is penetrated to the through-hole of this board to connect, A nut is screwed in to the axial part of this penetrated bolt, and a fixing | fixed part is attached to the head or nut of this bolt.
[0021]
Next, the drive member is moved in the distal direction of the bolt fixing member or in the opposite direction, and is engaged with the plate body to which the engagement portion of the engagement member is connected.
Then, the drive member moves the locking member in the front-rear direction of the bolt fixing member, and attaches the fixing portion of the bolt fixing member to the head or nut of the bolt attached to the plate to be connected, and engages with the driving member. When the locking member is moved in the tip direction of the bolt fixing member or in the opposite direction, the locking portion of the locking member is locked by the plate body to which the locking member is connected, so that the locking member does not fall and the bolt head Or, because the nut is fixed so that it cannot rotate, a fixing part is attached to the head of the bolt or nut, and the locking member is moved by the drive member in the direction of the tip of the bolt fixing member or in the opposite direction. When the locking portion of the member is locked to the connecting plate body, the locking member does not fall and the bolt head or nut is fixed so as not to rotate.
[0022]
Therefore, even if the hand is released, the locking member, that is, the bolt rotation stopping jig does not fall.
Next, the nut or bolt head on the opposite side is rotated with a rotating tool such as a ratchet or torque wrench, and the bolt is tightened.
Then, since the bolt head or nut is fixed in a non-rotatable manner by the fixing portion of the bolt fixing member, the bolt or nut will not run idle even if the nut or bolt head on the opposite side is rotated with a rotating tool. .
Further, since the bolt rotation stopping jig does not fall, it is not necessary to have a bolt rotation stopping jig, and the bolt and nut can be easily and firmly tightened with the rotating tool.
Therefore, it can be easily and firmly tightened even in a narrow place.
[0023]
The invention according to claim 2 is a bolt rotation stopping jig comprising a bolt fixing member, a locking member, and a driving member, wherein the bolt fixing member is provided at a rod-shaped portion and a tip portion of the rod-shaped portion. It consists of a fixing part and a screw hole provided in the rear part of the rod-like part, and this fixing part is a polygonal through hole that fits into the head or nut of the bolt, and the locking member includes a cylinder part, The driving member includes a locking claw provided at the front portion of the cylindrical portion and a pressing portion provided at the rear portion of the cylindrical portion, and the driving member has a male screw that is screwed into the screw hole of the bolt fixing member on the outer peripheral surface. It has a rod-shaped drive member main body and a handle provided at the rear of the drive member main body, and the rod-shaped portion of the bolt fixing member is inserted into the cylinder portion of the locking member so as to be movable in the front-rear direction of the bolt fixing member. The drive member body can be screwed into and out of the screw hole of the bolt fixing member. When the bolt fixing member fixing part is attached to the bolt head or nut attached to the plate to be connected and the handle is rotated to move the drive member body toward the tip of the bolt fixing member, this drive The front end of the member body pushes the pressing portion of the locking member, and the locking claw of the pressed locking member is locked to the plate to be connected, so that the locking member does not fall, and the bolt head or nut Since this bolt rotation prevention jig is easy to manufacture with a simple structure and the bolt rotation prevention jig is used as shown below, the bolt rotation prevention jig can be used even in a narrow space. -The nut can be easily and firmly tightened.
[0024]
That is, through holes are provided in a plurality of plates connected by bolts and nuts, and the plurality of plates are superposed so that the through holes communicate with each other.
And the axial part of a volt | bolt is penetrated to this communicating hole, and a nut is screwed in the axial part of this penetrated bolt.
Next, the head or nut of the bolt is inserted into the fixing portion which is a through hole of the bolt fixing member, and at the same time, the pressing portion at the rear portion of the locking member is opposed to the edge of the plate body.
[0025]
Then, the fixing portion is provided at the tip of the rod-like portion of the bolt fixing member, and the locking member is provided at the cylindrical portion, the locking claw provided at the front portion of the cylindrical portion, and the rear portion of the cylindrical body. Since the rod-shaped portion of the bolt fixing member is inserted into the cylinder portion of the locking member so as to be movable in the front-rear direction of the bolt fixing member, the locking member is arranged before and after the bolt fixing member. The distance from the fixing part to the locking part of the locking member is slightly longer than the distance from the head or nut of the bolt that penetrates the through hole of the plate body to the edge of the plate body. A bolt head or nut can be inserted into the fixing portion, and the locking portion of the other locking member can be opposed to the edge of the plate.
[0026]
Since the fixing portion is a polygonal through hole that fits into the head or nut of the bolt, when the bolt head or nut is inserted into the fixing portion that is the through hole and attached, the driving will be described later. The tip of the member body pushes the pressing part of the locking member. As a result, when the locking claw is locked to the plate, the locking part of the locking member collides with the plate, and the reaction is fixed by this reaction. The bolt is pushed in the opposite direction and a force is applied in the direction that the bolt head or nut moves away from the bolt rotation stop jig, but the bolt head or nut inserted into the through hole that is the fixed part is Does not get out of the hole.
[0027]
Next, the handle of the drive member is turned to move the drive member main body in the direction of the distal end of the bolt fixing member, and is locked to the edge of the plate body to which the locking claw of the locking member is connected.
Then, the drive member is composed of a rod-like drive member main body having a male screw that is screwed into a screw hole of the bolt fixing member on the outer peripheral surface, and a handle provided at the rear portion of the drive member main body. The plate member to be connected is inserted into the cylinder portion of the locking member so as to be movable in the front-rear direction of the bolt fixing member, and the drive member main body is screwed into the screw hole of the bolt fixing member so as to be freely screwed out. When the fixing part of the bolt fixing member is attached to the head or nut of the bolt attached to the bolt, and the handle is rotated to move the driving member body toward the tip of the bolt fixing member, the tip of the driving member body is locked The pressing part of the member is pushed, and the locking claw of the pressed locking member is locked to the connecting plate, so that the locking member does not drop and the bolt head or nut is fixed so as not to rotate. Because it is made into a structure When the handle is rotated, the drive member main body is rotated, the male screw provided on the outer peripheral surface of the drive member main body is rotated along the screw hole provided in the drive unit of the main body, and the drive member is the bolt fixing member. The front end of the drive member main body pushes the holding member of the locking member, and as a result, the locking member moves in the front end direction of the bolt fixing member and is moved to the front portion of the cylinder portion of the locking member. The provided locking claw collides with the plate body, and the locking claw of the locking member is locked to this plate body.
[0028]
Then, the locking member does not fall, and the bolt head or nut is fixed so as not to rotate.
Therefore, even if the hand is released, the locking member, that is, the bolt rotation stopping jig does not fall.
Next, the nut or bolt head on the opposite side is rotated with a rotating tool such as a ratchet or torque wrench, and the bolt is tightened.
[0029]
Then, since the head or nut of the bolt is fixed so as not to rotate, even if the nut or bolt head on the opposite side is rotated by the rotating tool, the bolt or nut does not run idle.
Further, since the bolt rotation stopping jig does not fall, it is not necessary to have a bolt rotation stopping jig, and the bolt and nut can be easily and firmly tightened with the rotating tool.
Therefore, it can be easily and firmly tightened even in a narrow place.
[0030]
In the invention according to claim 3, the plurality of connecting plate bodies having through holes are polymerized in a state where the through holes communicate with each other, the shaft portion of the bolt is passed through the through holes of the plurality of plate bodies, A nut is screwed into the shaft portion of the bolt, and the fixing portion of the bolt rotation stopping jig according to claim 1 or 2 is attached to the head or nut of the bolt, and the locking member is attached to the front end of the bolt fixing member by the driving member. Or, move it in the opposite direction to lock the locking part or locking claw of the locking member to the plate, rotate the nut or bolt head on the opposite side with a rotating tool, and tighten the bolt. Since it is an attaching method, as explained in the section of the bolt rotation stopping jig according to claim 1 or 2, the fixing portion of the bolt rotation stopping jig is attached to the head or nut of the bolt and locked by the driving member. In the direction of the tip of the bolt fixing member or the opposite direction By moving, when engaged to the plate member connecting the engagement portion or the engagement claw of the locking member, without engaging member is dropped, and, bolt head or nut is non-rotatably fixed.
[0031]
Next, even if the nut or bolt head on the opposite side is rotated with a rotating tool and tightened, the bolt and nut will not run idle.
Further, since the locking member, that is, the bolt rotation stopping jig does not fall, the bolt and nut can be easily and firmly tightened with the rotating tool.
Therefore, it can be easily and firmly tightened even in a narrow place.
[0032]
In the invention according to claim 4, the building unit to which the floor member and the ceiling member are attached is installed up and down, and the floor beam of the upper floor building unit is connected to the ceiling beam of the lower floor building unit. In the method, the upper floor beam and the lower floor beam of the building unit are provided with a through hole at a position facing each other when installed, and a floor material or a ceiling surface material in the vicinity of the through hole is provided. Is provided with a through-hole, the upper-floor building unit is installed on the lower-floor building unit, and bolts and nuts are inserted through the through-holes in the floor or ceiling flooring to The shaft portion of the bolt is passed through the through hole, a nut is screwed into the shaft portion of the bolt that has passed through, and the fixing portion of the bolt rotation-stopping material according to claim 1 or 2 is attached to the head or nut of the bolt, Lock the locking member with the drive member in the direction of the tip of the bolt fixing member or Move it in the opposite direction to lock the locking part or locking claw of the locking member to the edge of the floor beam or ceiling beam, and rotate the nut or bolt head on the opposite side with a rotating tool to wind the bolt As shown below, the through-hole provided in the floor surface material or the ceiling surface material is small, for example, a square having a side of 40 cm, and between the ceiling surface material and the floor surface material. Even in tight spaces, you can insert a hand with a rotating tool through this through hole and easily tighten the bolts and nuts firmly.
[0033]
That is, the upper floor building unit is installed on the lower floor building unit.
Then, the floor beams on the upper floor of the building unit and the ceiling beams on the lower floor are respectively provided with through holes at positions facing each other when installed, so the upper floor building unit is located above the lower floor building unit. When installed, the through hole of the floor beam communicates with the through hole of the ceiling beam.
[0034]
Next, a bolt and a nut are inserted from a through hole provided in the floor surface material or the ceiling surface material, and the shaft portion of the bolt is passed through the communicating hole, and the nut is inserted into the shaft portion of the penetrated bolt. Screw in.
Then, since the through hole is provided in the floor surface material or the ceiling surface material near the through hole, the bolt and the nut can be inserted from the through hole provided in the floor surface material or the ceiling surface material. The shaft portion of the bolt can be passed through the through-hole, and a nut can be screwed into the shaft portion of the penetrated bolt. This operation does not require a force, and even a small through hole can be easily performed by inserting a hand through the through hole.
[0035]
Next, the bolt rotation fixing jig fixing portion according to claim 1 or 2 is attached to the head or nut of the bolt, and the drive member is moved in the distal direction of the bolt fixing member to Lock the pawl to the edge of the floor beam or ceiling beam.
Then, as described in the section of the operation of the invention of claim 1 or 2, the locking member, that is, the bolt rotation stopping jig does not fall, and the bolt head or nut is fixed so as not to rotate. Therefore, even if the hand is released, the bolt rotation stopping jig does not come off from the plate.
[0036]
Next, the nut or bolt head on the opposite side is rotated with a rotating tool such as a ratchet or torque wrench to tighten the bolt.
Then, since the head or nut of the bolt is fixed so as not to rotate, even if the nut or bolt head on the opposite side is rotated by the rotating tool, the bolt or nut does not rotate freely.
[0037]
Further, since the bolt rotation stop jig does not fall, it is not necessary to have a bolt rotation stop jig, and the head or nut of the bolt can be easily and firmly tightened with the rotating tool.
Therefore, even if the through-hole provided in the floor surface material or the ceiling surface material is small, such as a square with a side of 40 cm, in a narrow space between the ceiling surface material and the floor surface material, Bolts and nuts can be easily and firmly tightened.
[0038]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described by way of examples.
Example 1
1 to 5 show an embodiment in which the present invention is applied to a method for constructing a unit building. FIG. 1 is a perspective view showing a unit building, FIG. 2 is a partially cutaway perspective view showing a building unit, and FIG. Is a perspective view showing a state in which a bolt is inserted into a through hole of the upper flange of the first floor ceiling beam and a lower flange of the second floor floor beam, and a nut is screwed in. FIG. FIG. 5 is a front view showing a state in which a bolt head is fixed with a jig, FIG. 5 shows a bolt rotation stopping jig, (A) is a front view, and (B) is a plan view.
[0039]
1 to 5, U is a unit building, and as shown in FIG. 1, nine building units 1 are installed on a foundation 9 to form a first floor. Nine building units 1 are installed on the building unit 1 on the floor to form the second floor, and the roof panel 2 is attached on the building unit 1 on the second floor.
[0040]
As shown in FIG. 2, the building unit 1 constituting this unit building U includes four steel rectangular cylindrical columns 11 standing at four rectangular corners, and lower ends of the four columns 11. The four steel cross-section floor beams 12 connected along the rectangular sides and the four steels connecting the upper ends of the four columns 11 along the rectangular sides It has a skeleton composed of a ceiling beam 13 having a long U-shaped cross section.
[0041]
The building unit 1 has a steel square tubular floor beam 14 attached to the opposite floor beam 12 of the skeleton, and a wooden floor joist 15 is attached to the floor beam 14. A floor board 16 of a particle board is attached on the floor joist 15 to form a floor, and a wooden ceiling edge 17 is attached to the opposite ceiling beam 13 and attached to the lower surface of the ceiling edge 17. The ceiling material is formed by attaching the face material 18.
[0042]
Further, in a place where the outer wall is provided, a spacer 19 is passed between the floor beam 12 and the ceiling beam 13, and an outer wall panel and an inner wall panel (not shown) are attached to the spacer 19, and glass wool is provided between the outer wall panel and the inner wall panel. The heat insulating material is attached to form an outer wall.
The floor surface material 1 at the four corners of the building unit 1 on the second floor, that is, the floor surface material 16 in the vicinity of the pillar 11, is provided with a substantially square through-hole 3 having a side length of about 40 cm.
[0043]
When the floor beam 12 is attached to the column 11, the joint piece 129 is attached to the floor beam 12, and the floor beam 12 is attached to the column 11 via the joint piece 129. And the joint beads 129 overlap.
However, since this joint piece 129 is a part of the floor beam 12, in this embodiment, the joint piece 129 is used as the floor beam 12.
[0044]
Further, when the ceiling beam 13 is attached to the column 11, the joint piece 139 is attached to the ceiling beam 13, and the ceiling beam 13 is attached to the column 11 via the joint piece 123. 13 and the joint beads 139 overlap.
However, since this joint piece 139 is a part of the ceiling beam 13, in this embodiment, the joint piece 139 is used as the ceiling beam 13.
[0045]
Reference numeral 4 denotes a bolt. As shown in FIG. 4, the bolt 4 is an M16 × 65L high-strength bolt including a bolt head 41 and a shaft portion 42.
A nut 45 is screwed onto the shaft portion 42 of the bolt 4.
46 is an annular washer.
47 is a metal square washer plate having a size of 90 mm × 32 mm and a thickness of 16 mm. When the bolts and nuts are tightly wound, the force applied to the bolts and nuts is diffused by the square washer plate 47 and the floor beam 12 and the ceiling beam 13 are prevented from being deformed.
[0046]
48 is a metal spacer having a thickness of about 1 mm. As shown in FIG. 3, this spacer 48 is inserted between the floor beam 12 and the ceiling beam 13 to tighten this bolt and nut. Is to be able to be performed sufficiently.
In addition, when the clearance between the floor beam 12 and the ceiling beam 13 is 1 mm or less, the floor beam 12 and the ceiling beam 13 are in close contact with each other and can be sufficiently tightened when the bolts and nuts are tightened. If there is no need to insert and there is a gap of several millimeters between the floor beam 12 and the ceiling beam 13, and a plurality of spacers can be inserted, a plurality of spacers are inserted.
[0047]
In addition, the square washer plate 47 and the spacer 48 are provided with a through hole having a size through which the shaft portion 42 of the bolt 4 passes substantially at the center.
M is a bolt rotation stopping jig, and the bolt rotation stopping jig M includes a bolt fixing member 5, a locking member 6, and a driving member 7, as shown in FIG.
The bolt fixing member 5 includes a rod-shaped portion 51, a fixing portion 51 provided at the tip of the rod-shaped portion 52, and a screw hole 53 provided at the rear portion of the rod-shaped portion 52. The fixing portion 51 is a polygonal through hole that fits into the bolt head 42 or the nut 45.
[0048]
There is a curved portion 55 between the rod-like portion 52 and the screw hole 53 so that the rod-like portion 52 follows the floor beam 12 or the ceiling beam 13 when the fixing portion 51 is attached to the head or nut of the bolt. It has become.
The locking member 6 includes a cylindrical portion 61, a locking claw 62 provided at the front portion of the cylindrical portion 61, and a pressing portion 63 provided at the rear portion of the cylindrical body 61.
The cylindrical portion 61 includes a main body 611 obtained by bending a metal plate into a U shape, and a lid body 612 that closes an opening of the main body 611. The main body 611 and the lid body 612 form a cylinder. The locking claw 62 is a plate body that is erected by extending the front end of the main body 611 and bent substantially at a right angle, and the pressing portion 63 is erected by extending the rear end of the main body 611 and bending it at a substantially right angle. Plate.
[0049]
The drive member 7 includes a rod-shaped drive member main body 71 having a male screw 711 screwed into the screw hole 53 of the bolt fixing member 5 on the outer peripheral surface, and a handle 72 provided at the rear portion of the drive member main body 71.
In the bolt rotation stopping jig M, the rod-shaped portion 52 of the bolt fixing member 5 is inserted into the cylindrical portion 61 of the locking member 6, and the drive member main body 71 is screwed into the screw hole 52 of the bolt fixing member 5. It is screwed together.
[0050]
Then, the bolt head 42 or the nut 45 is attached at the fixing portion 51 of the bolt fixing member 5, the handle 72 is rotated, and the driving member main body 71 is screwed into the screw hole 53. It moves in the distal direction, that is, in the direction of the ceiling beam 13 or the floor beam 12 connecting the drive member main body 71, and the distal end of the drive member main body 71 presses the pressing portion 63 of the locking member 6, and the pressed pressing portion 63 is pressed. The locking claw 62 of the locking member 6 that is integrated with the ceiling beam 13 and the floor beam 12 is locked. As a result, the locking member 6 does not fall and the bolt head or nut is fixed in a non-rotatable manner.
Since the roof panel 2 is substantially the same as a conventional folded roof, the description thereof is omitted.
[0051]
Next, the construction method and operation of this unit building U will be described.
The building unit 1 and the roof panel 2 shown in FIG. 2 are manufactured at the factory.
And this building unit 1 and the roof panel 2 are conveyed to a construction site.
At the construction site, nine building units 1 are installed on a pre-installed foundation 9 to form the first floor, and nine building units 1 are installed on the first floor building unit 1 to the second floor. The roof panel 9 is mounted on the building unit 1 on the second floor, and the webs of the floor beams 12 and the ceiling beams 12 facing each other on the first and second floor building units are connected with bolts and nuts. When the upper flange of the ceiling beam 13 on the first floor and the lower flange of the floor beam 12 facing each other are connected and various other finishings are performed, the unit building U shown in FIG. 1 is completed.
[0052]
A joint pin 95 as shown in FIG. 3 is erected on the upper end surface of the column 11 of the building unit 1 on the first floor, and a through hole is provided on the lower end surface of the column 11 of the building unit 1 on the second floor. The second floor building unit is placed on the first floor building unit 1 while the joint pin 95 of the pillar 11 of the first floor building unit 1 is inserted into the through hole of the pillar 11 of the second floor building unit 1. install.
In this way, the building unit 1 on the second floor is attached to a predetermined position of the building unit 1 on the first floor.
[0053]
Next, a construction method for connecting the upper flange 131 of the ceiling beam 13 of the first floor building unit 1 and the lower flange 121 of the floor beam 12 of the second floor building unit 1 will be described.
When the building unit 1 on the first floor is manufactured in the factory, the through holes 132 are provided in the upper flange 131 near the rectangular four corners of the ceiling beam 13.
[0054]
When the second floor building unit 1 is installed on the lower flange 121 of the floor beam of the second floor building unit 1 on the first floor building unit 1, the ceiling beam 13 of the first floor building unit 1 is installed. A through hole 122 is provided at a position facing the through hole 132.
Further, the through-hole 3 is provided in the floor surface material 16 in the vicinity of the rectangular through holes 122 and 132 at the four corners.
[0055]
When the second floor building unit 1 is installed on the first floor building unit 1 at the construction site, the lower flange 121 of the floor beam of the second floor building unit 1 and the upper flange of the ceiling beam of the first floor building unit 1 131 is provided with a through-hole 122 at a position facing the building unit 1 on the second floor on the building unit 1 on the first floor. The through hole 122 communicates with the through hole 132 of the ceiling beam 13.
Then, as shown in FIG. 3, a spacer 48 is inserted between the upper flange 131 of the ceiling beam 13 on the first floor and the lower flange 121 of the second floor to close the gap therebetween.
At this time, if a spacer cannot be inserted, it is not inserted. If one spacer 48 is insufficient, a plurality of spacers are inserted.
[0056]
Next, the bolt 4 through which the washer 46 and the square washer plate 47 are inserted into the shaft portion 42 of the bolt 4 is inserted from the through hole 3, and the shaft portion 42 of the bolt 4 is inserted into the through-hole 132 of the ceiling beam 13 on the first floor and the spacer 48. Pass through the through holes 122 of the floor beam 12 on the second floor.
Next, the square washer plate 47, the washer 46, and the nut 45 are inserted from the through hole 3, and the nut 45 is screwed into the shaft portion 42 of the bolt 4 through which the square washer plate 47 and the washer 46 are passed.
[0057]
Then, since the through-hole 3 is provided in the floor material 16 in the vicinity of the through-holes 122 and 132, bolts 4, nuts 45, and the like are inserted or communicated from the through-hole 3 provided in the floor material 16. The operation of passing the shaft portion 42 of the bolt 4 through the through-holes 122 and 132 and screwing the nut 45 into the shaft portion 42 of the passed bolt 4 requires no force. Therefore, even a small through hole 3 can be easily inserted by inserting a hand from the through hole 3.
Next, the bolt rotation stopping jig M is inserted from the through-hole 3 and the locking claw 62 of the locking member 6 is opposed to the edge of the floor beam 12. The fixing part 51 of 5 is attached to the head 41 of the bolt 4.
[0058]
Then, the fixing portion 51 provided at the tip of the rod-like portion 52 of the bolt fixing member 5 is a polygonal through hole that fits into the head 41 or the nut 45 of the bolt 4, and the locking member 6 is a cylinder And a locking claw 62 provided at the front part of the cylindrical part 61 and a pressing part 63 provided at the rear part of the cylindrical part 61, and the rod-shaped part 52 of the bolt fixing member 5 is the locking member 6. Since the bolt fixing member 5 is inserted in the cylindrical portion 61 so as to be movable in the front-rear direction, the locking member 6 is moved so that the distance from the fixing portion 51 to the locking claw 62 of the locking member 6 is increased. The head 41 of the bolt 4 is attached to one fixing part 51 by making it slightly longer than the distance from the head 41 of the bolt 4 penetrating the through hole 122 of the floor beam 12 to the edge of the floor beam 12, and the other locking claw 62 can be opposed to the edge of the plate.
[0059]
When the fixing portion 51 that is the through hole is attached to the head 42 of the bolt 4, the fixing portion 51 is the through hole, so that the distal end of the drive member main body 71 described later pushes the pressing portion 63 of the locking member 6. As a result, when the locking claw 62 is locked to the floor beam 12, the locking member 6 collides with the floor beam 12, and by this reaction, the fixing portion 51 is pushed back, and the head 41 of the bolt 4 stops the bolt rotation. Although a force is applied in a direction away from the jig, the head 41 of the bolt 4 inserted into the fixing portion 51 that is a through hole is caught by the edge of the through hole and does not come off the fixing portion 51.
[0060]
Next, the handle 72 of the driving member 7 is turned to move the driving member 7 in the direction of the floor beam 12, and the locking member 6 is locked to the edge of the floor beam 12.
Then, the drive member 7 includes a rod-like drive member main body 71 having a male screw that is screwed into the screw hole 53 of the bolt fixing member 5 on the outer peripheral surface, and a handle 72 provided at the rear portion of the drive member main body 71. The drive member main body 71 is screwed into the screw hole 53 of the bolt fixing member 5 so as to be screwed in and out. The fixing portion 51 of the bolt fixing member 5 is attached to the head 41 of the bolt 4, and the handle 72 is rotated to drive. When the member main body 71 is screwed into the screw hole 53 and moved in the direction of the distal end of the bolt fixing member 5, the distal end of the drive member main body 71 pushes the pressing portion 63 of the locking member 6 and is pressed. A locking claw 62 provided at the tip of the member 6 is locked to the floor beam 12 or the ceiling beam 13 so that the locking member 6 does not fall and the bolt head 41 is fixed in a non-rotatable manner. Rotate the handle 72 When the locking claw 62 is locked to the floor beam 12 or the ceiling beam 13, the locking member 6, that is, the bolt rotation stopping jig M does not fall, and the bolt head 41 is fixed so as not to rotate. .
[0061]
Therefore, even if the hand is released, the bolt rotation stopping jig M is not detached from the floor beam 12 and the ceiling beam 13.
Next, a torque wrench of 280 N · m as a rotating tool is attached to the head 42 of the nut or bolt 4 on the opposite side, the handle of this torque wrench is taken out from the through hole 3, and the handle 16 Rotate the bolt 4 and tighten it.
Then, since the head 41 of the bolt 4 is fixed in a non-rotatable manner, the bolt or nut does not run idle even if the nut 45 on the opposite side is rotated with a torque wrench.
[0062]
Further, since the bolt rotation prevention jig M does not fall even if the hand is released, it is not necessary to have the bolt rotation prevention jig M, and the through hole 3 provided in the small floor material 16 is allowed to pass through even in a narrow place. Holding the handle of a torque wrench, the bolt 4 can be easily and firmly tightened.
After tightening the bolts and nuts, the rotating tool is pulled out from the through hole 3, the handle 72 is rotated in the opposite direction, the drive member main body 71 is retracted, the bolt rotation stopping jig M is removed, and it is taken out from the through hole 3. When the through hole 3 is closed with a floor material, the connection between the floor beam 12 and the ceiling beam 13 is completed.
[0063]
(Example 2)
FIG. 6 shows another embodiment of the present invention and is a front view showing a bolt rotation stopping jig Ma.
[0064]
Compared with the first embodiment shown in FIGS. 1 to 5 of the bolt rotation stopping jig Ma of the second embodiment shown in FIG. 6, the height of the curved portion 55a of the bolt fixing member 5a and the direction of the fixing portion 51a are slightly different. .
That is, in this bolt rotation stopping jig Ma, the direction and position of the bolt on the floor beam is exactly the same as that when the fixing portion 51a is inserted into the head of the bolt, the locking claw 62a of the locking tool 6a follows the floor beam. It is used for cases.
Since other structures, usage methods, and operations are substantially the same as those of the first embodiment, description thereof is omitted.
[0065]
As mentioned above, although this invention was demonstrated in the Example, this Example may be changed in the range which does not deviate from the summary of this invention.
For example, in the embodiment, the locking claw is directed in the distal direction, but the bolt fixing member extends from the fixed portion in the distal direction, the locking claw is provided in a place beyond the fixed portion, and the locking claw May be directed toward the rear end. At this time, the locking member may be moved by the driving member toward the rear end of the bolt fixing member so that the locking member does not fall and the bolt head or nut is fixed to be non-rotatable.
[0066]
【The invention's effect】
As described above, the invention according to claim 1 is a bolt rotation stopping jig including a bolt fixing member, a locking member, and a driving member, and the bolt fixing member includes a bolt at a tip portion. A fixing portion for fixing a head or a nut is provided, and the locking member is provided with a locking portion at a front portion, and the locking member is attached to be movable in the front-rear direction of the bolt fixing member. Moves the locking member in the front-rear direction of the bolt fixing member, and attaches the fixing portion of the bolt fixing member to the head or nut of the bolt attached to the plate to be connected, and the locking member is moved by the driving member. When the bolt fixing member is moved in the tip direction or in the opposite direction, the locking portion of the locking member is locked to the connecting plate, the locking member does not fall, and the bolt head or nut For non-rotatable fixed structure From being, with this bolt rotation stopper jig, it can be tightened winding easily firmly bolts and nuts in narrow spaces.
[0067]
The invention according to claim 2 is a bolt rotation stopping jig including a bolt fixing member, a locking member, and a driving member, and the bolt fixing member is provided at a rod-shaped portion and a tip portion of the rod-shaped portion. It consists of a fixing part and a screw hole provided in the rear part of the rod-like part, and this fixing part is a polygonal through hole that fits into the head or nut of the bolt, and the locking member includes a cylinder part, The driving member includes a locking claw provided at the front portion of the cylindrical portion and a pressing portion provided at the rear portion of the cylindrical portion, and the driving member has a male screw that is screwed into the screw hole of the bolt fixing member on the outer peripheral surface. It has a rod-shaped drive member main body and a handle provided at the rear of the drive member main body, and the rod-shaped portion of the bolt fixing member is inserted into the cylinder portion of the locking member so as to be movable in the front-rear direction of the bolt fixing member. The drive member body is screwed into the screw hole of the bolt fixing member. When the fixing part of the bolt fixing member is attached to the head or nut of the bolt attached to the plate to be connected, and the handle is rotated to move the drive member body toward the tip of the bolt fixing member, this The front end of the drive member main body pushes the pressing portion of the locking member, the locking claw of the pressed locking member is locked to the plate body to be connected, the locking member does not fall, and the bolt head or Since the nut is fixed in a non-rotatable manner, this bolt rotation prevention jig can be easily manufactured with a simple structure. It can be easily and firmly tightened.
[0068]
In the invention according to claim 3, the plurality of connecting plate members having through holes are polymerized so that the through holes communicate with each other, and the shaft portion of the bolt is passed through the through holes of the plurality of plate members. A nut is screwed into the shaft portion of the bolt, and the fixing portion of the bolt rotation stopping jig according to claim 1 or 2 is attached to the head or nut of the bolt, and the locking member is attached to the front end of the bolt fixing member by the driving member. Or, move it in the opposite direction to lock the locking part or locking claw of the locking member to the plate, rotate the nut or bolt head on the opposite side with a rotating tool, and tighten the bolt. Since it is an attaching method, as explained in the section of the bolt rotation stopping jig according to claim 1 or 2, it is attached to a bolt head or nut attached to a plate body to which a fixing portion of a bolt fixing member is connected. Connect the locking part or locking claw of the locking member When engaged to the body, the locking member, i.e., without the bolt rotation stopper jig fall and, bolt heads or nuts is fixed in a state of non-rotatable.
Next, when the nut on the opposite side or the head of the bolt is rotated with a rotating tool, the bolt or nut does not rotate freely, and the bolt and nut can be easily and firmly tightened. That is, it can be tightened even in a narrow place.
[0069]
Invention of Claim 4 installs the building unit to which the floor material and the ceiling material were attached up and down, and constructs the building which connects the floor beam of the upper floor building unit and the ceiling beam of the lower floor building unit In the method, the upper floor beam and the lower floor beam of the building unit are provided with a through hole at a position facing each other when installed, and a floor material or a ceiling surface material in the vicinity of the through hole is provided. Is provided with a through-hole, the upper-floor building unit is installed on the lower-floor building unit, and bolts and nuts are inserted through the through-holes in the floor or ceiling flooring to The shaft portion of the bolt is passed through the through hole, and a nut is screwed into the shaft portion of the penetrated bolt. The fixing portion of the bolt rotation stopping jig according to claim 1 or 2 is attached to the head or nut of the bolt, Lock the locking member with the drive member in the direction of the tip of the bolt fixing member or its The locking part or locking claw of the locking member is locked to the edge of the floor beam or ceiling beam, and the nut or bolt head on the opposite side is rotated with a rotating tool to tighten the bolt. From the above, as described in the section of the bolt rotation stopping jig according to claim 1 or 2, the fixing portion of the bolt fixing member is attached to the head or nut of the bolt attached to the floor beam or the ceiling beam and locked. When the locking part or the locking claw of the member is locked to the floor beam or the ceiling beam, the locking member, that is, the bolt rotation stopping jig does not fall, and the bolt head or nut becomes non-rotatable. Fixed.
[0070]
Next, when the nut or bolt head on the opposite side is rotated with a rotating tool, the bolt or nut does not rotate freely, and the bolt or nut is removed from the through hole provided in the floor or ceiling material with the rotating tool. It can be easily and firmly tightened. That is, even if the through hole provided in the floor surface material or the ceiling surface material is small, for example, a square having a side length of 40 cm, the bolt and nut can be easily tightened.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a unit building according to an embodiment in which the present invention is applied to a unit building construction method.
FIG. 2 is a partially cutaway perspective view showing a building unit.
FIG. 3 is a perspective view showing a state in which a bolt is inserted into a through hole of an upper flange of a first floor ceiling beam and a lower hole of a second floor floor beam and a nut is screwed in.
FIG. 4 is a front view showing a state in which a bolt head is fixed by a bolt rotation stopping jig.
5A and 5B show a bolt rotation stopping jig, where FIG. 5A is a front view and FIG. 5B is a plan view.
FIG. 6 is a front view showing a bolt rotation stopping jig Ma according to another embodiment of the present invention.
[Explanation of symbols]
U unit building
M, Ma Bolt rotation stop jig
1 Building unit
2 Roof panel
3 Flooring material through-hole
4 bolts
41 bolt head
45 nut
5, 5a Bolt fixing member
51, 51a fixed part
52 Bar-shaped part
53 Screw holes
6, 6a Locking member
61 Tube
62, 62a Locking claw (locking part)
7 Drive member
71 Drive member body
72 Handle

Claims

A bolt rotation stopping jig comprising a bolt fixing member, a locking member, and a driving member, wherein the bolt fixing member is provided with a fixing portion for fixing a bolt head or nut at a tip portion, and the locking member Is provided with a locking portion at the front, the locking member is attached to the bolt fixing member so as to be movable in the front-rear direction, and the driving member moves the locking member in the front-rear direction of the bolt fixing member. When the fixing part of the bolt fixing member is attached to the head or nut of the bolt attached to the plate to be connected, and the locking member is moved in the tip direction of the bolt fixing member or the opposite direction by the driving member The locking portion of the locking member is locked to the plate body to be connected, the locking member does not fall, and the bolt head or nut is fixed to be non-rotatable. Bolt rotation stopping jig

A bolt rotation stopping jig comprising a bolt fixing member, a locking member, and a driving member, wherein the bolt fixing member includes a rod-shaped portion, a fixing portion provided at a tip portion of the rod-shaped portion, and a rear portion of the rod-shaped portion. The fixing portion is a polygonal through hole that fits into the head or nut of the bolt, and the locking member is provided at the cylindrical portion and the front portion of the cylindrical portion. A rod-shaped drive member main body having a male screw that is screwed into a screw hole of a bolt fixing member on an outer peripheral surface; and a holding portion provided at a rear portion of the cylindrical portion. It consists of a handle provided at the rear part of this drive member main body, and the rod-shaped part of the bolt fixing member is inserted into the cylinder part of the locking member so as to be movable in the front-rear direction of the bolt fixing member, and the drive member main body is bolt fixed Plate that is screwed into the screw hole of the member so that it can be screwed in and out. When the fixing part of the bolt fixing member is attached to the head or nut of the bolt attached to the bolt, and the handle is rotated to move the driving member body toward the tip of the bolt fixing member, the tip of the driving member body is locked The pressing part of the member is pushed, and the locking claw of the pressed locking member is locked to the connecting plate, so that the locking member does not drop and the bolt head or nut is fixed so as not to rotate. Bolt rotation stop jig characterized by having a structure.

A plurality of connecting plate bodies having through-holes are superposed so that the through-holes communicate with each other. The shaft portion of the bolt is passed through the through-holes of the plurality of plate bodies, and a nut is inserted into the shaft portion of the penetrated bolt. The bolt rotation stopper jig fixing portion is attached to the bolt head or nut, and the locking member is moved by the drive member in the tip direction of the bolt fixing member or in the opposite direction. A bolt tightening method comprising: locking a locking portion or a locking claw of a locking member to a plate, and rotating the nut or bolt head on the opposite side with a rotating tool to wind the bolt.

A building construction method in which a building unit to which a floor surface material and a ceiling surface material are attached is installed up and down, and a floor beam of an upper floor building unit and a ceiling beam of a lower floor building unit are connected. The upper floor beam and the lower floor ceiling beam are provided with through holes at positions facing each other when installed, and the floor material or ceiling surface material in the vicinity of this through hole is provided with a through hole. The upper floor building unit is installed on the lower floor building unit, and bolts and nuts are inserted through the through holes in the floor or ceiling floor material, and the bolt shafts are inserted into the floor beam and ceiling beam through holes. A nut is screwed into the shaft portion of the bolt that has been penetrated, and the fixing portion of the bolt rotation stopping jig according to claim 1 or 2 is attached to the head or nut of the bolt, and the locking member is bolted by the driving member. Move the tip of the fixing member in the direction of the tip or vice versa, Construction of a building characterized in that the locking part or locking claw of the member is locked to the edge of the floor beam or ceiling beam, and the bolt or bolt is tightened by rotating the opposite nut or bolt head with a rotating tool Method.