JP3735304B2

JP3735304B2 - Steel pulling mounting structure

Info

Publication number: JP3735304B2
Application number: JP2002067581A
Authority: JP
Inventors: 成憲岩澤
Original assignee: Panahome Corp
Current assignee: Panasonic Homes Co Ltd
Priority date: 2002-03-12
Filing date: 2002-03-12
Publication date: 2006-01-18
Anticipated expiration: 2022-03-12
Also published as: JP2003268887A

Description

【０００１】
【発明の属する技術分野】
本発明は、鋼製大引の取付け構造に関するものである。
【０００２】
【従来の技術】
近年、大引として角筒状をした鋼製大引が使用されるようになっている。鋼製大引は木製大引に比べて強度が強く、また、シロアリなどの被害にも遭わないため、長期間安定して強度を発揮することができるという特徴を有している。
【０００３】
上記のような特徴を有する角筒状をした鋼製大引は基礎や束等の大引支持基台に載設支持される。例えば、大引支持基台が基礎の場合で説明すると、大引の底面壁の端部付近に孔を設け、鋼製大引内において底面壁の上面側にナットを孔と連通するように配置した状態で溶接あるいはかしめ固定により固着し、また、基礎上面に載置部となる受け金物をアンカーボルトにより固着し、この受け金物の側端部を基礎の側面よりも側方に突出させてあり、この受け金物上に鋼製大引を載置し、鋼製大引の底面壁の端部付近に設けたナットと載置部の孔とを合わせ、載置部の孔からボルトを挿入して鋼製大引に固定したナットに螺着することで鋼製大引を取付けていた。
【０００４】
ところが、角筒状の鋼製大引の端部付近の内部にナットを溶接するのはきわめて難しく、また、かしめ固定にしても固着が難しいという問題がある。
【０００５】
【発明が解決しようとする課題】
本発明は上記の点に鑑みてなされたものであり、簡単な構成で角筒状の鋼製大引内の端部付近に正確にナットを位置させることができ、鋼製大引の取付けが容易に行える鋼製大引の取付け構造を提供することを課題とするものである。
【０００６】
【課題を解決するための手段】
上記課題を解決するために本発明に係る鋼製大引の取付け構造は、連設部１から先端が自由端となった上横片２を横方向に突出し且つ連設部１から上横片２と同じ方向に先端が自由端となった下横片３を突出すると共に上横片２に上横片２に設けた孔４に連通するようにナット５を固着してナット付きプレート６を形成し、角筒状をした鋼製大引７の端部開口８から鋼製大引７の底面壁９にナット付きプレート６を差し込んで上横片２と下横片３とで底面壁９を上下から挟持した状態でナット５と鋼製大引７の底面壁９に設けた孔１８とを連通させ、基礎や束等の大引支持基台１０の上面に大引支持基台１０の側面より側方に突出するように載置部１０ｂを設け、載置部１０ｂに鋼製大引７の端部を載置すると共に載置部１０ｂに設けたボルト挿入孔１１から挿入したボルト１２を鋼製大引７の孔１８を介してナット付きプレート６のナット５に螺合して成ることを特徴とするものである。このような構成とすることで、鋼製大引７の端部開口８から鋼製大引７の底面壁９にナット付きプレート６を差し込むだけで、ナット５を鋼製大引７の底面壁９に設けた孔１８と連通した状態で保持でき、従来のようにナット５を鋼製大引７内に溶接やかしめ固定により取付ける必要がなくて、簡単に鋼製大引７を大引支持基台１０にボルト１２により取付けることが可能となるものである。
【０００７】
また、連設部１の中央部から先端が自由端となった上横片２を横方向に突出し且つ連設部１の両端部から上横片２と同じ方向に先端が自由端となった下横片３を突出し、下横片３、上横片２のいずれか一方の突出長を他方の突出長よりも長くすることが好ましい。このような構成とすることで、鋼製大引７の端部開口８から鋼製大引７の底面壁９にナット付きプレート６を差し込んでナット５と底面壁９の孔１８とを位置決めして連通させるに当たって、ナット付きプレート６の両下横片３又は上横片２のうちいずれかの先端を先に鋼製大引７の底面壁９の端部開口８側の下面又は上面に当てた状態で次に他方の先端を底面壁９の上面側又は下面側に沿って差し込むことでナット付きプレート６を底面壁９の上下面に挟持するように差し込むことができるものである。
【０００８】
また、上横片２の先端よりも両側の下横片３の先端を突出させ、上横片２の先端を斜め上方に突出させて上横片用ガイド部１４とすることが好ましい。このような構成とすることで、鋼製大引７の端部開口８から鋼製大引７の底面壁９にナット付きプレート６を差し込んでナット５と底面壁９の孔１８とを位置決めして連通させるに当たって、ナット付きプレート６の両下横片３の先端を先に鋼製大引７の底面壁９の端部開口８側の下面に当てた状態で次に上横片２の先端の上横片用ガイド部１４をガイドとして底面壁９の上面側に沿って差し込むことでナット付きプレート６を底面壁９の上下面に挟持するように差し込むことができるものである。
【０００９】
また、角筒状の鋼製大引７内に差し込まれる上横片２に角筒状をした鋼製大引７の端部開口８の横巾とほぼ等しい巾の部分を設けることが好ましい。このような構成とすることで、上横片２を角筒状の鋼製大引７内に差し込むと上横片２の鋼製大引７に対する巾方向の位置決めが自動的になされてナット５と鋼製大引７の底面壁９に設けた孔１８とを容易に一致させることができ、ナット５と孔１８とを一致させた状態で鋼製大引７に対してナット５が巾方向にずれないようにできるものである。
【００１０】
また、ナット５を上横片２に設けた孔４よりも外径の大きいナット本体１５とナット本体１５の下端部に突設した上横片２に設けた孔４よりも外径の小さい細径筒部１６とで構成し、ナット５の細径筒部１６を上横片２に設けた孔４に上方より挿入してナット５本体を上横片２の上面側に位置させると共に細径筒部１６に上横片２の下方よりリング１７を嵌め込んで細径筒部１６を上横片２の下面側にかしめ固定することが好ましい。このような構成とすることで、上横片２にナット５を取付ける際に用いるリング１７をボルト１２による締め付け時に座金としての役目をすることになる。
【００１１】
【発明の実施の形態】
以下、本発明を添付図面に示す実施形態に基づいて説明する。
【００１２】
まず、図１乃至図４に基づいて本発明の一実施形態につき説明する。ナット付きプレート６は、背の低い縦片よりなる連設部１の下端部の中央部から横方向に向けて先端が自由端となり且つナット５を固着した上横片２が突出してあり、また、連設部１の両側部からそれぞれ先端が自由端となった下横片３が上横片２の突出方向と同方向に突出して構成してある。
【００１３】
両下横片３はいずれも上横片２よりも少し下方に位置しており、下横片３と上横片２との上下方向の隙間の寸法は後述の筒状をした鋼製大引７の底面壁９の肉厚と同じか又は肉厚よりも少し短いものである。また、両下横片３は上横片２よりも突出長が長く、したがって、下横片３の先端は上横片２の先端よりも突出している。
【００１４】
図４に示すように、上横片２には孔４が設けてあり、この孔４に連通するように上横片２にナット５が取付けてある。ナット５は上横片２に設けた孔４よりも外径の大きいナット本体１５とナット本体１５の下端部に突設した上横片２に設けた孔４よりも外径の小さい細径筒部１６とで構成してある。このナット５の細径筒部１６をナット付きプレート６の上横片２に設けた孔４に上方より挿入してナット５本体を上横片２の上面側に位置させると共に細径筒部１６に上横片２の下方よりリング１７を嵌め込んで細径筒部１６を上横片２の下面側にかしめ固定することでナット５を上横片２の孔４部分に固着している。このような固着状態でナット５はナット本体１５が上横片２の上面側に位置し、リング１７が上横片２の下面側に位置することになる。
【００１５】
上横片２の先端を斜め上方に突出させてあって、この先端の斜めに突出した部分が上横片用ガイド部１４となっている。
【００１６】
筒状の鋼製大引７は底面壁９の端部開口８から一定寸法内側に引き込んだ位置に孔１８が設けてある。鋼製大引７の端部開口８から底面壁９に設けた孔１８の中心までの長さは、ナット付きプレート６の連設部１からナット５の中心までの長さに等しく設定してある。
【００１７】
前述のナット付きプレート６は角筒状をした鋼製大引７の端部開口８から鋼製大引７の底面壁９に差し込んで取付けるものであり、上横片２と下横片３とで底面壁９を上下から挟持すると共にナット５と鋼製大引７の底面壁９に設けた孔４とを連通させる。
【００１８】
この場合、上横片２の先端よりも両側の下横片３の先端を突出させてあるので、ナット付きプレート６の両下横片３の先端を先に鋼製大引７の底面壁９の端部開口８側の下面に当てた状態で次に上横片２の先端をガイドとして底面壁９の上面側に沿って差し込むことでナット付きプレート６を底面壁９の上下面に挟持するように差し込むことができるものであり、更に、この際、上横片２の先端を斜め上方に突出させて上横片用ガイド部１４としてあるので、上横片２の先端の上横片用ガイド部１４をガイドとして底面壁９の上面側に沿って差し込むことができて、ナット付きプレート６を底面壁９の上下面に挟持するように差し込む作業が容易に行えるものである。また、鋼製大引７の端部開口８から底面壁９に設けた孔１８の中心までの長さと、ナット付きプレート６の連設部１からナット５の中心までの長さを等しく設定してあることで、ナット付きプレート６を連設部１が鋼製大引７の底面壁９の端（つまり端部開口８の下端縁）に当たるまで差し込むことで、自動的にナット５と孔１８とを連通することができるものである。
【００１９】
このようにして鋼製大引７にナット付きプレート６を取付けることで鋼製大引７の底面壁９の孔１８に連続してナット５を設けた後に、鋼製大引７を基礎や束等の大引支持基台１０の上面の載置部１０ｂに鋼製大引７を載置して上記ナット５を利用してボルト１２により取付けるものである。
【００２０】
支持基台１０には載置部１０ｂが設けられ、この載置部１０ｂは少なくとも一部が支持基台１０の側面よりも側方に突出している。図１には支持基台１０が基礎１０ａの例を示してあり、この基礎１０ａの上面に載置部１０ｂとなる受け金物１０ｃをアンカーボルト２０により固着してあり、この受け金物１０ｃの側端部を基礎１０ａの側面よりも側方に突出させてあり、受け金物１０ｃの基礎１０ａの側面よりも側方に突出した部分にボルト挿入孔１１が形成してある。
【００２１】
ナット付きプレート６を取付けた鋼製大引７を基礎１０ａに設けた上記受け金物１０ｃ上に載置し、鋼製大引７の底面壁９に設けた孔１８と載置部１０ｂのボルト挿入孔１１とを連通させ（これによりボルト挿入孔１１とナット５を連通させ）、この状態で、ボルト挿入孔１１からボルト１２を挿入し、孔１８を通してナット５に螺着するものである。
【００２２】
この場合、上横片２にナット５を取付ける際に用いるリング１７がボルト１２による締め付け時に座金としての役目をすることになって螺着状態が強固となるものである。
【００２３】
次に、図５乃至図８に基づいて本発明の他の実施形態につき説明する。本実施形態においては、角筒状の鋼製大引７内に差し込まれる上横片２に角筒状をした鋼製大引７の端部開口８の横巾とほぼ等しい巾の部分を設けることに特徴がある。そして、本実施形態においてはナット付きプレート６の構成が上記実施形態とことなるが、鋼製大引７の構成、鋼製大引７の取付け方は前述の実施形態と同様であるので、重複する説明は省略して説明する。
【００２４】
本実施形態においてナット付きプレート６は、背の低い縦片よりなる連設部１の下端部の中央部から横方向に向けて先端が自由端となり且つナット５を固着した上横片２が突出してあり、また、連設部１の両側部からそれぞれ先端が自由端となった下横片３が上横片２の突出方向と同方向に突出して構成してある。両下横片３はいずれも上横片２よりも少し下方に位置しており、下横片３と上横片２との上下方向の隙間の寸法は後述の筒状をした鋼製大引７の底面壁９の肉厚と同じか又は肉厚よりも少し短いものである。また、上横片２は両下横片３よりも突出長が長く、この上横片２の下横片３よりも突出した部分が巾広の幅広部２ａとなっていて、この巾広部２ａの巾が角筒状をした鋼製大引７の端部開口８の横巾とほぼ等しい巾となっている。また、巾広部２ａの突出先端の両コーナ部分は面取りしてあって、上横片２の先端を角筒状をした鋼製大引７の端部開口７から挿入する際に面取り部分をガイドとして挿入できるようにしてある。また、上横片２に対してナット５を固着する構成は前述と同様の図４（ｅ）と同様の構成となっている。
【００２５】
上記の構成のナット付きプレート６はまず、上横片２の先端を上記面取り部をガイドとして角筒状をした鋼製大引７内に差し込んで巾広部２ａを底面部８の上面に当接した状態でナット付きプレート６を押し込み、更に下横片３の先端を底面部８の下面側に当接し、更に、連設部１が鋼製大引７の底面壁９の端（つまり端部開口８の下端縁）に当たるまでナット付きプレート６を押し込むものであり、これにより上横片２と下横片３とで底面壁９を上下から挟持すると共にナット５と鋼製大引７の底面壁９に設けた孔４とを連通させるものである。
【００２６】
この場合、上横片２の巾が角筒状をした鋼製大引７の端部開口８の横巾とほぼ等しいので、ナット５と孔１８とを巾方向に一致させることができ、また、前述の実施形態と同様に鋼製大引７の端部開口８から底面壁９に設けた孔１８の中心までの長さと、ナット付きプレート６の連設部１からナット５の中心までの長さを等しく設定してあることで、ナット付きプレート６を連設部１が鋼製大引７の底面壁９の端に当たるまで差し込むことで、自動的にナット５と孔１８とを連通することができるものである。
【００２７】
本実施形態においては、前述のようにして鋼製大引７にナット付きプレート６を取付け、ナット５と孔１８とを連通させるのであるが、このナット付きプレート６を取付けた鋼製大引７を前述の実施形態と同様にして支持基台１０の上面部に設けた載置部１０ｂに載置してボルト１２により取付ける作業を行う際に、ナット付きプレート６が鋼製大引７に対して巾方向に動かず、ナット５と孔１８との位置ずれを防止ながら取付け作業ができるものである。
【００２８】
【発明の効果】
上記のように本発明の請求項１記載の発明にあっては、連設部から先端が自由端となった上横片を横方向に突出し且つ連設部から上横片と同じ方向に先端が自由端となった下横片を突出すると共に上横片に上横片に設けた孔に連通するようにナットを固着してナット付きプレートを形成し、角筒状をした鋼製大引の端部開口から鋼製大引の底面壁にナット付きプレートを差し込んで上横片と下横片とで底面壁を上下から挟持した状態でナットと底面壁に設けた孔とを連通させ、基礎や束等の大引支持基台の上面に支持基台の側面より側方に突出するように載置部を設け、載置部に鋼製大引の端部を載置すると共に載置部に設けたボルト挿入孔から挿入したボルトを鋼製大引の孔を介してナット付きプレートのナットに螺合してあるので、鋼製大引の端部開口から鋼製大引の底面壁にナット付きプレートを差し込むだけで、ナットを鋼製大引の底面壁に設けた孔と連通した状態で保持でき、従来のようにナットを鋼製大引内に溶接やかしめ固定により取付ける必要がなくて、簡単に鋼製大引を支持基台にボルトにより取付けることが可能となるものである。
【００２９】
また、請求項２記載の発明にあっては、上記請求項１記載の発明の効果に加えて、連設部の中央部から先端が自由端となった上横片を横方向に突出し且つ連設部の両端部から上横片と同じ方向に先端が自由端となった下横片を突出し、下横片、上横片のいずれか一方の突出長を他方の突出長よりも長くするので、鋼製大引の端部開口から鋼製大引の底面壁にナット付きプレートを差し込んでナットと底面壁の孔とを位置決めして連通させるに当たって、ナット付きプレートの両下横片又は上横片のうちいずれかの先端を先に鋼製大引の底面壁の端部開口側の下面又は上面に当てた状態で次に他方の先端を底面壁の上面側又は下面側に沿って差し込むことでナット付きプレートを底面壁の上下面に挟持するように差し込むことができるものである。
【００３０】
また、請求項３記載の発明にあっては、上記請求項２記載の発明の効果に加えて、上横片の先端よりも両側の下横片の先端を突出させ、上横片の先端を斜め上方に突出させて上横片用ガイド部としてあるので、鋼製大引の端部開口から鋼製大引の底面壁にナット付きプレートを差し込んでナットと底面壁の孔とを位置決めして連通させるに当たって、ナット付きプレートの両下横片の先端を先に鋼製大引の底面壁の端部開口側の下面に当てた状態で次に上横片の先端の上横片用ガイド部をガイドとして底面壁の上面側に沿って差し込むことでナット付きプレートを底面壁の上下面に挟持するように差し込むことができるものである。
【００３１】
また、請求項４記載の発明にあっては、上記請求項１乃至請求項３のいずれかに記載の発明の効果に加えて、角筒状の鋼製大引内に差し込まれる上横片に角筒状をした鋼製大引の端部開口の横巾とほぼ等しい巾の部分を設けてあるので、上横片を角筒状の鋼製大引内に差し込むと上横片の鋼製大引に対する巾方向の位置決めが自動的になされてナットと鋼製大引の底面壁に設けた孔とを容易に一致させることができ、また、鋼製大引の取付け作業時にナットと孔とを一致させた状態で鋼製大引に対してナットが巾方向にずれず、取付け作業が簡単にできるものである。
【００３２】
また、請求項５記載の発明にあっては、上記請求項１乃至請求項４のいずれかに記載の発明の効果に加えて、ナットを上横片に設けた孔よりも外径の大きいナット本体とナット本体の下端部に突設した上横片に設けた孔よりも外径の小さい細径筒部とで構成し、ナットの細径筒部を上横片に設けた孔に上方より挿入してナット本体を上横片の上面側に位置させると共に細径筒部に上横片の下方よりリングを嵌め込んで細径筒部を上横片の下面側にかしめ固定してあるので、上横片にナットを取付ける際に用いるリングをボルトによる締め付け時に座金としての役目をすることになる。
【図面の簡単な説明】
【図１】本発明の鋼製大引の取付け状態を示す断面図である。
【図２】同上の鋼製大引にナット付きプレートを取付けた状態の断面図である。
【図３】同上の鋼製大引にナット付きプレートを差し込む前の状態の斜視図である。
【図４】同上に用いるナット付きプレートを示し、（ａ）は平面図であり、（ｂ）は正面図であり、（ｃ）は側面図であり、（ｄ）は断面図であり、（ｅ）はナットの取付け部分の拡大断面図である。
【図５】本発明の他の実施形態の鋼製大引の取付け状態を示す断面図である。
【図６】同上の鋼製大引にナット付きプレートを取付けた状態の断面図である。
【図７】同上の鋼製大引にナット付きプレートを差し込む前の状態の斜視図である。
【図８】同上に用いるナット付きプレートを示し、（ａ）は平面図であり、（ｂ）は正面図であり、（ｃ）は側面図であり、（ｄ）は断面図である。
【符号の説明】
１連設部
２上横片
３下横片
４孔
５ナット
６ナット付きプレート
７鋼製大引
８端部開口
９底面壁
１０大引支持基台
１１ボルト挿入孔
１２ボルト
１４上横片用ガイド部
１５ナット本体
１６細径筒部
１７リング
１８孔[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an attachment structure for steel pulling.
[0002]
[Prior art]
2. Description of the Related Art In recent years, steel pullings that have a rectangular tube shape have been used as pullings. Steel draws are stronger than wood draws, and do not suffer from termite damage, so they have the characteristics of being able to exert strength stably over a long period of time.
[0003]
The steel tube with a rectangular tube shape having the above-described features is mounted and supported on a large support base such as a foundation or a bundle. For example, in the case of the base of the large pull support base, a hole is provided near the end of the bottom wall of the large pull, and the nut is arranged to communicate with the hole on the upper surface side of the bottom wall in the steel large pull. In this state, it is fixed by welding or caulking, and a receiving metal object to be placed on the upper surface of the foundation is fixed by an anchor bolt, and the side end of this receiving metal object is protruded laterally from the side surface of the foundation. Then, place the steel fork on the bracket, align the nut provided near the end of the bottom wall of the steel fork with the hole for the placement part, and insert the bolt through the hole for the placement part. The steel pull was attached by screwing onto a nut fixed to the steel pull.
[0004]
However, there is a problem that it is extremely difficult to weld a nut to the inside of the end portion of the square tube-shaped steel large drawing, and that it is difficult to fix even by caulking.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and with a simple configuration, the nut can be accurately positioned in the vicinity of the end portion in the square tube-shaped steel drawing, and the steel drawing is attached. It is an object of the present invention to provide a steel pulling attachment structure that can be easily performed.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problem, the steel pulling attachment structure according to the present invention has a structure in which the upper horizontal piece 2 whose tip is a free end protrudes laterally from the continuous portion 1 and the upper horizontal piece extends from the continuous portion 1. The nut 5 is fixed so that the lower horizontal piece 3 whose tip is a free end protrudes in the same direction as 2 and communicates with the hole 4 provided in the upper horizontal piece 2 to the upper horizontal piece 2. A plate 6 with a nut is inserted into the bottom wall 9 of the steel puller 7 from the end opening 8 of the steel puller 7 formed into a square tube shape, and the bottom wall 9 is formed by the upper horizontal piece 2 and the lower horizontal piece 3. The nut 5 and the hole 18 provided in the bottom wall 9 of the steel pulling 7 are communicated with each other from above and below, and the large pulling support base 10 is placed on the upper surface of the large pulling support base 10 such as a foundation or a bundle. A mounting portion 10b is provided so as to protrude sideways from the side surface, and an end of the steel pulling 7 is mounted on the mounting portion 10b and a bolt provided on the mounting portion 10b. The bolt 12 inserted from the insertion hole 11 is characterized in that comprising screwed to the nut 5 of the nut with the plate 6 through a steel Obiki 7 holes 18. With such a configuration, the nut 5 is simply inserted into the bottom wall 9 of the steel drawer 7 from the end opening 8 of the steel drawer 7 and the nut 5 is attached to the bottom wall of the steel drawer 7. 9 can be held in communication with the hole 18 provided in the hole 9, and it is not necessary to attach the nut 5 in the steel puller 7 by welding or caulking as in the prior art. It can be attached to the base 10 with bolts 12.
[0007]
Further, the upper horizontal piece 2 whose tip is a free end from the central portion of the connecting portion 1 protrudes in the horizontal direction, and the tip becomes a free end in the same direction as the upper horizontal piece 2 from both ends of the connecting portion 1. It is preferable that the lower horizontal piece 3 protrudes, and the protruding length of one of the lower horizontal piece 3 and the upper horizontal piece 2 is longer than the other protruding length. With this configuration, the nut-attached plate 6 is inserted into the bottom wall 9 of the steel drawer 7 from the end opening 8 of the steel drawer 7 to position the nut 5 and the hole 18 in the bottom wall 9. In order to communicate with each other, the tip of either the lower horizontal piece 3 or the upper horizontal piece 2 of the nut-attached plate 6 is first applied to the lower surface or the upper surface of the bottom wall 9 of the steel puller 7 on the end opening 8 side. In this state, the other end is inserted along the upper surface or the lower surface of the bottom wall 9 so that the nut-attached plate 6 can be inserted between the upper and lower surfaces of the bottom wall 9.
[0008]
Further, it is preferable that the tip of the lower horizontal piece 3 on both sides protrudes from the tip of the upper horizontal piece 2 and the tip of the upper horizontal piece 2 protrudes obliquely upward to form the upper horizontal piece guide portion 14. With this configuration, the nut-attached plate 6 is inserted into the bottom wall 9 of the steel drawer 7 from the end opening 8 of the steel drawer 7 to position the nut 5 and the hole 18 in the bottom wall 9. In order to communicate with each other, the tip of the lower horizontal piece 3 of the plate 6 with a nut is first applied to the lower surface of the bottom wall 9 of the steel puller 7 on the end opening 8 side, and then the tip of the upper horizontal piece 2 By inserting the upper horizontal piece guide portion 14 along the upper surface side of the bottom wall 9, the nut-attached plate 6 can be inserted so as to be held between the upper and lower surfaces of the bottom wall 9.
[0009]
Moreover, it is preferable to provide a portion having a width substantially equal to the lateral width of the end opening 8 of the steel drawing 7 in the shape of a square tube in the upper horizontal piece 2 inserted into the square drawing of the steel drawing 7. By adopting such a configuration, when the upper horizontal piece 2 is inserted into the square tube-shaped steel drawing 7, the positioning of the upper horizontal piece 2 with respect to the steel drawing 7 is automatically performed and the nut 5 And the hole 18 provided in the bottom wall 9 of the steel puller 7 can be easily matched, and the nut 5 is in the width direction with respect to the steel puller 7 with the nut 5 and the hole 18 being matched. It is something that can be avoided.
[0010]
A nut body 15 having a larger outer diameter than the hole 4 provided in the upper horizontal piece 2 and a small outer diameter smaller than the hole 4 provided in the upper horizontal piece 2 protruding from the lower end portion of the nut main body 15. The small cylinder portion 16 of the nut 5 is inserted from above into the hole 4 provided in the upper horizontal piece 2 so that the nut 5 main body is positioned on the upper surface side of the upper horizontal piece 2 and has a small diameter. It is preferable that the ring 17 is fitted into the cylindrical portion 16 from below the upper horizontal piece 2 and the small-diameter cylindrical portion 16 is caulked and fixed to the lower surface side of the upper horizontal piece 2. With such a configuration, the ring 17 used when attaching the nut 5 to the upper horizontal piece 2 serves as a washer when the bolt 12 is tightened.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0012]
First, an embodiment of the present invention will be described with reference to FIGS. The nut-attached plate 6 has a free end at the front end in the lateral direction from the center of the lower end portion of the connecting portion 1 made of a short vertical piece, and an upper horizontal piece 2 to which the nut 5 is fixed, The lower horizontal piece 3 whose tip is a free end from both side portions of the continuous portion 1 protrudes in the same direction as the protruding direction of the upper horizontal piece 2.
[0013]
Both the lower horizontal pieces 3 are located slightly below the upper horizontal piece 2, and the size of the vertical gap between the lower horizontal piece 3 and the upper horizontal piece 2 is a tubular steel pulling described later. 7 is the same as the wall thickness of the bottom wall 9 or slightly shorter than the wall thickness. In addition, both the lower horizontal pieces 3 have a longer protruding length than the upper horizontal piece 2, and therefore, the tip of the lower horizontal piece 3 protrudes more than the tip of the upper horizontal piece 2.
[0014]
As shown in FIG. 4, a hole 4 is provided in the upper horizontal piece 2, and a nut 5 is attached to the upper horizontal piece 2 so as to communicate with the hole 4. The nut 5 has a nut main body 15 having a larger outer diameter than the hole 4 provided in the upper horizontal piece 2 and a small diameter cylinder having a smaller outer diameter than the hole 4 provided in the upper horizontal piece 2 protruding from the lower end portion of the nut main body 15. Part 16. The small-diameter cylindrical portion 16 of the nut 5 is inserted into the hole 4 provided in the upper horizontal piece 2 of the nut-equipped plate 6 from above to position the nut 5 main body on the upper surface side of the upper horizontal piece 2 and the small-diameter cylindrical portion 16. The nut 5 is fixed to the hole 4 portion of the upper horizontal piece 2 by fitting the ring 17 from below the upper horizontal piece 2 and caulking and fixing the small diameter cylindrical portion 16 to the lower surface side of the upper horizontal piece 2. In such a fixed state, the nut body 15 of the nut 5 is positioned on the upper surface side of the upper horizontal piece 2 and the ring 17 is positioned on the lower surface side of the upper horizontal piece 2.
[0015]
The tip of the upper horizontal piece 2 is protruded obliquely upward, and the obliquely protruded portion of the tip is the upper horizontal piece guide portion 14.
[0016]
The tubular steel large drawing 7 is provided with a hole 18 at a position where it is drawn inward from the end opening 8 of the bottom wall 9 by a predetermined dimension. The length from the end opening 8 of the steel puller 7 to the center of the hole 18 provided in the bottom wall 9 is set equal to the length from the connecting portion 1 of the plate 6 with nut to the center of the nut 5. is there.
[0017]
The aforementioned plate 6 with nut is attached by being inserted into the bottom wall 9 of the steel drawer 7 from the end opening 8 of the steel drawer 7 having a rectangular tube shape. The bottom wall 9 is sandwiched from above and below, and the nut 5 and the hole 4 provided in the bottom wall 9 of the steel pulling 7 are communicated.
[0018]
In this case, since the tip of the lower horizontal piece 3 on both sides protrudes from the tip of the upper horizontal piece 2, the bottom wall 9 of the steel puller 7 is arranged with the tips of the lower horizontal pieces 3 of the plate 6 with nuts first. Next, the nut-attached plate 6 is sandwiched between the upper and lower surfaces of the bottom wall 9 by being inserted along the upper surface of the bottom wall 9 with the tip of the upper horizontal piece 2 as a guide while being in contact with the lower surface of the end opening 8 side. Further, at this time, since the tip of the upper horizontal piece 2 protrudes obliquely upward to form the upper horizontal piece guide portion 14, the upper horizontal piece 2 is used for the upper horizontal piece. The guide portion 14 can be used as a guide along the upper surface side of the bottom wall 9, and the operation of inserting the nut-attached plate 6 so as to be sandwiched between the upper and lower surfaces of the bottom wall 9 can be easily performed. Further, the length from the end opening 8 of the steel large drawing 7 to the center of the hole 18 provided in the bottom wall 9 is set equal to the length from the connecting portion 1 of the plate 6 with nut to the center of the nut 5. Therefore, the nut 5 and the hole 18 are automatically inserted by inserting the plate 6 with the nut until the connecting portion 1 comes into contact with the end of the bottom wall 9 of the steel pull 7 (that is, the lower edge of the end opening 8). Can communicate with each other.
[0019]
After the nut 5 is continuously provided in the hole 18 in the bottom wall 9 of the steel puller 7 by attaching the plate 6 with the nut to the steel puller 7 in this way, the steel puller 7 is attached to the foundation or bundle. The steel pulling 7 is mounted on the mounting portion 10 b on the upper surface of the large pulling support base 10, etc., and is attached with the bolts 12 using the nut 5.
[0020]
The support base 10 is provided with a mounting portion 10 b, and at least a part of the mounting portion 10 b protrudes laterally from the side surface of the support base 10. FIG. 1 shows an example in which the support base 10 is a base 10a, and a receiving metal object 10c serving as a mounting portion 10b is fixed to an upper surface of the base 10a by an anchor bolt 20, and a side end of the receiving metal object 10c is shown. The part is made to protrude sideward from the side surface of the foundation 10a, and the bolt insertion hole 11 is formed in the part protruding sideways from the side surface of the foundation 10a of the receiving metal object 10c.
[0021]
A steel pull 7 attached with a plate 6 with a nut is placed on the receiving piece 10c provided on the foundation 10a, and a hole 18 provided in the bottom wall 9 of the steel draw 7 and a bolt inserted into the mounting portion 10b. The hole 11 is communicated (the bolt insertion hole 11 and the nut 5 are thereby communicated). In this state, the bolt 12 is inserted from the bolt insertion hole 11 and screwed into the nut 5 through the hole 18.
[0022]
In this case, the ring 17 used when attaching the nut 5 to the upper horizontal piece 2 serves as a washer when tightened with the bolt 12, and the screwed state is strengthened.
[0023]
Next, another embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a portion having a width substantially equal to the lateral width of the end opening 8 of the steel tube 7 having a rectangular tube shape is provided on the upper horizontal piece 2 inserted into the steel tube 7 having a rectangular tube shape. There is a special feature. And in this embodiment, although the structure of the plate 6 with a nut differs from the said embodiment, since the structure of the steel large drawing 7 and the attachment method of the steel large drawing 7 are the same as that of the above-mentioned embodiment, it overlaps. The description to be given will be omitted.
[0024]
In the present embodiment, the nut-attached plate 6 has a top end which is a free end in the lateral direction from the center of the lower end portion of the continuous portion 1 made of a short vertical piece, and the upper horizontal piece 2 to which the nut 5 is fixed projects. In addition, the lower horizontal piece 3 whose tip is a free end from both sides of the connecting portion 1 is configured to protrude in the same direction as the protruding direction of the upper horizontal piece 2. Both the lower horizontal pieces 3 are located slightly below the upper horizontal piece 2, and the size of the vertical gap between the lower horizontal piece 3 and the upper horizontal piece 2 is a tubular steel pulling described later. 7 is the same as the wall thickness of the bottom wall 9 or slightly shorter than the wall thickness. Further, the upper horizontal piece 2 has a longer protruding length than the lower horizontal pieces 3, and a portion protruding from the lower horizontal piece 3 of the upper horizontal piece 2 is a wide wide portion 2a. The width of 2a is substantially equal to the lateral width of the end opening 8 of the steel drawing 7 having a rectangular tube shape. Further, both corner portions of the protruding tip of the wide portion 2a are chamfered, and the chamfered portion is inserted when the tip of the upper horizontal piece 2 is inserted from the end opening 7 of the steel tube 7 having a rectangular tube shape. It can be inserted as a guide. Moreover, the structure which fixes the nut 5 with respect to the upper horizontal piece 2 is the same structure as FIG.4 (e) similar to the above-mentioned.
[0025]
The nut-equipped plate 6 having the above-described structure is first inserted into the steel drawing 7 having a rectangular tube shape with the chamfered portion as a guide, and the wide portion 2a is brought into contact with the upper surface of the bottom surface portion 8. The nut-attached plate 6 is pushed in contact, the tip of the lower horizontal piece 3 is brought into contact with the lower surface side of the bottom surface portion 8, and the connecting portion 1 is further connected to the end (that is, the end) of the bottom wall 9 of the steel pulling 7. The bottom plate 9 is pushed in between the upper horizontal piece 2 and the lower horizontal piece 3 and the nut 5 and the steel puller 7 are The hole 4 provided in the bottom wall 9 communicates with the hole 4.
[0026]
In this case, since the width of the upper horizontal piece 2 is substantially equal to the horizontal width of the end opening 8 of the steel drawing 7 having a rectangular tube shape, the nut 5 and the hole 18 can be made to coincide with each other in the width direction. Similarly to the above-described embodiment, the length from the end opening 8 of the steel puller 7 to the center of the hole 18 provided in the bottom wall 9 and from the connecting portion 1 of the plate 6 with nut to the center of the nut 5 are as follows. By setting the lengths equal to each other, the nut 5 and the hole 18 are automatically communicated by inserting the nut-equipped plate 6 until the connecting portion 1 hits the end of the bottom wall 9 of the steel drawer 7. It is something that can be done.
[0027]
In the present embodiment, the nut-attached plate 6 is attached to the steel drawing 7 as described above, and the nut 5 and the hole 18 are communicated. The steel drawing 7 to which the nut-attached plate 6 is attached. Is mounted on the mounting portion 10b provided on the upper surface portion of the support base 10 in the same manner as in the above-described embodiment, and the nut-attached plate 6 is attached to the steel pulling 7 when the bolt 12 is attached. Thus, the mounting operation can be performed while preventing the position shift between the nut 5 and the hole 18 without moving in the width direction.
[0028]
【The invention's effect】
As described above, according to the first aspect of the present invention, the upper horizontal piece whose tip is a free end from the connecting portion protrudes in the lateral direction, and the tip extends from the connecting portion in the same direction as the upper horizontal piece. A steel plate with a rectangular tube shape by protruding the lower horizontal piece with a free end and fixing the nut to the upper horizontal piece so as to communicate with the hole provided in the upper horizontal piece to form a plate with a nut. Insert the plate with a nut from the end opening of the steel into the bottom wall of the steel large draw, and let the nut and the hole provided in the bottom wall communicate with each other while holding the bottom wall from above and below with the upper horizontal piece and the lower horizontal piece, A mounting part is provided on the upper surface of the large support base such as a foundation or a bundle so that it protrudes laterally from the side surface of the support base, and the end of the steel large pull is mounted on the mounting part. Since the bolt inserted from the bolt insertion hole provided in the section is screwed into the nut of the plate with nut through the steel pulling hole, The nut can be held in communication with the hole provided in the bottom wall of the steel large pull by simply inserting a plate with a nut from the end opening of the pull into the bottom wall of the steel large pull. This eliminates the need to attach the steel drawing by welding or caulking, and makes it possible to easily attach the steel drawing to the support base with bolts.
[0029]
In addition, in the invention described in claim 2, in addition to the effect of the invention described in claim 1, the upper horizontal piece whose tip is a free end from the central portion of the connecting portion protrudes in the horizontal direction and continues. Since the lower horizontal piece whose tip is the free end in the same direction as the upper horizontal piece protrudes from both ends of the installation part, the protruding length of either the lower horizontal piece or the upper horizontal piece is longer than the other protruding length When inserting the plate with a nut from the end opening of the steel plate to the bottom wall of the steel plate and positioning and communicating the nut and the hole in the bottom wall, With one tip of the piece first touching the lower surface or upper surface of the bottom opening wall of the steel large drawing, the other tip is inserted along the upper surface or lower surface side of the bottom wall. Can be inserted so that the plate with nuts is sandwiched between the upper and lower surfaces of the bottom wall. .
[0030]
Further, in the invention described in claim 3, in addition to the effect of the invention described in claim 2, the tip of the lower horizontal piece on both sides protrudes from the tip of the upper horizontal piece, and the tip of the upper horizontal piece is Since the upper horizontal piece guide part protrudes obliquely upward, the nut and the hole in the bottom wall are positioned by inserting a plate with a nut from the end opening of the steel large pull into the bottom wall of the steel large pull. When communicating, with the tips of the lower horizontal pieces of the plate with nuts in contact with the lower surface on the end opening side of the bottom wall of the steel fork, first the upper horizontal piece guide part of the upper horizontal piece Is inserted along the upper surface side of the bottom wall so that the plate with nuts can be inserted between the upper and lower surfaces of the bottom wall.
[0031]
In addition, in the invention according to claim 4, in addition to the effect of the invention according to any one of claims 1 to 3, the upper horizontal piece inserted into the square tube-shaped steel large drawing. Since there is a part with a width that is almost equal to the width of the end opening of the steel tube drawing in the shape of a square tube, when the upper horizontal piece is inserted into the steel tube drawing of the square tube shape, Positioning in the width direction with respect to the large pull is automatically performed so that the nut and the hole provided in the bottom wall of the steel large pull can be easily aligned. The nut does not shift in the width direction with respect to the steel pulling in a state in which these are matched, and the mounting operation can be performed easily.
[0032]
In the invention according to claim 5, in addition to the effect of the invention according to any one of claims 1 to 4, the nut has a larger outer diameter than the hole provided in the upper horizontal piece. It consists of a main body and a small-diameter cylindrical part having a smaller outer diameter than the hole provided in the upper horizontal piece projecting from the lower end of the nut main body, and the nut's small-diameter cylindrical part from above to the hole provided in the upper horizontal piece Since the nut body is inserted and positioned on the upper surface side of the upper horizontal piece, and the ring is fitted into the small diameter cylindrical portion from below the upper horizontal piece, the small diameter cylindrical portion is fixed by caulking to the lower surface side of the upper horizontal piece. When the nut used for attaching the nut to the upper horizontal piece is tightened with a bolt, it serves as a washer.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state in which a steel draw according to the present invention is attached.
FIG. 2 is a cross-sectional view showing a state in which a nut-attached plate is attached to the same steel steel pull.
FIG. 3 is a perspective view showing a state before a plate with a nut is inserted into the steel puller.
FIG. 4 shows a plate with a nut used in the above, (a) is a plan view, (b) is a front view, (c) is a side view, (d) is a sectional view, e) It is an expanded sectional view of the attaching part of a nut.
FIG. 5 is a cross-sectional view showing a state of attachment of a steel pulling of another embodiment of the present invention.
FIG. 6 is a cross-sectional view showing a state in which a nut-attached plate is attached to the steel puller.
FIG. 7 is a perspective view showing a state before inserting a plate with a nut into the steel puller.
8A and 8B show a nut-attached plate used in the above, wherein FIG. 8A is a plan view, FIG. 8B is a front view, FIG. 8C is a side view, and FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Connection part 2 Upper horizontal piece 3 Lower horizontal piece 4 Hole 5 Nut 6 Nut plate 7 Steel large drawing 8 End opening 9 Bottom wall 10 Large drawing support base 11 Bolt insertion hole 12 Bolt 14 Guide for upper horizontal piece Part 15 Nut body 16 Small diameter cylindrical part 17 Ring 18 Hole

Claims

The upper horizontal piece whose tip is a free end protrudes from the connecting portion in the horizontal direction, and the lower horizontal piece whose tip is a free end protrudes from the connecting portion in the same direction as the upper horizontal piece and is above the upper horizontal piece. A nut is fixed so as to communicate with the hole provided in the horizontal piece to form a plate with a nut, and the plate with a nut is inserted into the bottom wall of the steel large drawing through the end opening of the steel large drawing having a rectangular tube shape. In the state where the bottom wall is sandwiched from above and below by the upper horizontal piece and the lower horizontal piece, the nut and the hole provided in the bottom wall are communicated with each other, and the side surface of the support base is placed on the upper surface of the large support base such as a foundation or a bundle. The mounting part is provided so as to protrude more sideways, the end of the steel pulling is mounted on the mounting part, and the bolt inserted from the bolt insertion hole provided in the mounting part is inserted into the steel pulling hole. A structure for attaching a steel pulling, characterized in that it is screwed onto a nut of a plate with a nut through a nut.

The upper horizontal piece whose tip is a free end protrudes laterally from the central portion of the continuous portion, and the lower horizontal piece whose tip is a free end protrudes from both ends of the continuous portion in the same direction as the upper horizontal piece, 2. The steel large pull mounting structure according to claim 1, wherein the protruding length of one of the lower horizontal piece and the upper horizontal piece is longer than the other protruding length.

3. The steel product according to claim 2, wherein the tip of the lower horizontal piece on both sides protrudes from the tip of the upper horizontal piece, and the tip of the upper horizontal piece protrudes obliquely upward to form a guide portion for the upper horizontal piece. Large pull installation structure.

2. An upper horizontal piece inserted into a square tube-shaped steel drawing is provided with a portion having a width substantially equal to the width of the end opening of the steel drawing having a square tube shape. The steel large drawing mounting structure according to claim 3.

The nut is composed of a nut body having a larger outer diameter than the hole provided in the upper horizontal piece and a thin cylindrical portion having a smaller outer diameter than the hole provided in the upper horizontal piece protruding from the lower end of the nut body. Is inserted from above into the hole provided in the upper horizontal piece, the nut body is positioned on the upper surface side of the upper horizontal piece, and a ring is fitted into the small diameter cylindrical portion from below the upper horizontal piece. The steel large pull attachment structure according to any one of claims 1 to 4, wherein the cylindrical portion is fixed by caulking to the lower surface side of the upper horizontal piece.