JP3953366B2

JP3953366B2 - Bracing bracket for hanging bolt

Info

Publication number: JP3953366B2
Application number: JP2002171067A
Authority: JP
Inventors: 操澤田
Original assignee: 株式会社サワタ建材社
Priority date: 2002-06-12
Filing date: 2002-06-12
Publication date: 2007-08-08
Anticipated expiration: 2022-06-12
Also published as: JP2004019106A

Description

【０００１】
【発明の属する技術分野】
本発明は、天井材を吊持するために建物躯体の天井部より垂下される吊りボルトの隣合うもの同士に振れ止め用の筋交いを斜めに架け渡すにあたり、各筋交いの端部を吊りボルトに取り付けるための筋交い取付金具に関するものである。
【０００２】
【従来の技術】
図９の（Ａ）は従来の筋交い取付金具２３を示し、（Ｂ）及び（Ｃ）はその取付状態を示す。この筋交い取付金具２３は、先端部にボルト挿通孔２４を、またその手前側に板状筋交い２ｂ取付用のビス孔２５を夫々設けた取付板２６、及びこの主板部２６の後端部に直角に突設され、ボルト状筋交い２ａの端部を螺合するボルト挿通孔２７を形成した取付板２８からなる金具本体２９と、建物躯体の天井部Ｓより垂下される吊りボルト１を両側から抱持する一対の抱持片３０，３０と、両抱持片３０，３０を締め付け固定するボルト３１及びナット３２と、から構成され、各抱持片３０は、両端部にボルト挿通孔３０ｂ，３０ｂを形成し、中央部に吊りボルト１の外周面に係合する凹状部３０ａを形成している。
【０００３】
この取付金具２３を使用して、図９の（Ｂ）に示すように板状の筋交い２ｂを吊りボルト１に取り付ける時は、隣合う双方の吊りボルト１，１の一方ボルト１の例えば上端部に一対の抱持片３０，３０を抱持させてボルト３１及びナット３２で固定すると共に、抱持片３０，３０の一端部側に金具本体２９の取付板２６の先端部を挟着し、他方の吊りボルト１にはその下端部に一対の抱持片３０，３０を固定すると共に、抱持片３０，３０の一端部側に金具本体２９の取付板２６の先端部を挟着する。
【０００４】
そして、板状筋交い２ｂを隣合う双方の吊りボルト１，１に斜めに架け渡し、この板状筋交い２ｂの一端部を、一方の吊りボルト１の上端部側にある金具本体２９の取付板２６にビス３３で取り付け、その他端部を他方の吊りボルト１の下端部側にある金具本体２９の取付板２６にビス３３で取り付ければよい。図９の（Ｃ）は、同じ取付金具２３を使用して、ボルト状筋交い２ａを吊りボルト１に取り付けた状態を示したもので、この場合は、金具本体２９の取付板２８を利用して、そのボルト挿通孔２７にボルト状筋交い２ａの端部を挿通させ、取付板２８を挟む一対のナット３４，３４で固定すればよい。
【０００５】
【発明が解決しようとする課題】
上記のような従来の取付金具２３は、部品点数が多く、製作コストが高くつくと共に、筋交い２の取付けに非常に手間がかかる、と云う問題があった。そこで本発明は、このような問題に鑑み、部品点数が少なく、製作コストが安くつき、筋交いの取付け作業が簡単容易に行なえる吊りボルト用筋交い取付金具を提供することを目的とする。
【０００６】
【課題を解決するための手段】
請求項１に係る発明の吊りボルト用筋交い取付金具３は、建物躯体の天井部Ｓより垂下される吊りボルト１の隣合うもの同士にボルト状又は板状の振れ止め用筋交い２を架け渡すにあたり、筋交い２の端部を吊りボルト１に取り付けるための筋交い取付金具であって、先端側側縁部に吊りボルト係着用切欠溝８を形成した主板部５と、主板部５の後端部に主板部５の横断面に沿うように直交して連設され、ボルト状筋交い２ａの端部を取り付ける取付孔を形成した第１副板部６と、主板部５の後部側に主板部５の縦断面に沿うように直交して連設され、板状筋交い２ｂの端部をビス止めするためのビス孔１０を形成した第２副板部７と、からなる金具本体４を有し、前記切欠溝８は、吊りボルト１の直径ｄより僅かに広い開口幅Ｗを有する入口部８ｏと、この入口部８ｏの開口幅Ｗより長さの長い長孔部８ａとからなるもので、金具本体４を水平姿勢にすると、吊りボルト１に対し嵌脱自在となり、吊りボルト１に嵌め込んで金具本体４を吊りボルト１に対し一定角度に傾斜させると、長孔部８ａの両端縁部１５，１５が吊りボルト１に食い込んで係着するようになっていることを特徴とする。
【０００７】
請求項２は、請求項１に記載の吊りボルト用筋交い取付金具において、前記第１副板部６の取付孔はネジ孔９からなることを特徴とする。
【０００８】
請求項３は、請求項１に記載の吊りボルト用筋交い取付金具において、前記切欠溝８の長孔部８ａは、入口部８ｏと反対側の側縁部１４が吊りボルト１の外周とほぼ同じ曲率の円弧状部を形成し、長孔部８ａの両端縁部１５，１５が夫々吊りボルト１の外周の曲率より小さい円弧状部を形成すると共に、隣合う円弧状部１４，１５の交差部１６、及び端縁側円弧状部１５と入口部８ｏの開口端面２０との交差部１７が夫々先鋭突起を形成していることを特徴とする。
【０００９】
【発明の実施の形態】
本発明の実施形態を図面参照して説明すると、図１は、建物躯体の天井スラブＳより垂下された吊りボルト１…の互いに隣合う吊りボルト１，１同士に、本発明の取付金具３を使用して筋交い２を架け渡した状態を示す正面図であり、図２の（Ａ）は筋交い取付金具３を示す斜視図、（Ｂ）はその平面図、（Ｃ）は同取付金具３のを（Ａ）の矢印Ｆから見た正面図、（Ｄ）は同取付金具３のを（Ａ）の矢印Ｅから見た端面図である。各吊りボルト１の上端部は、天井スラブ（天井部）Ｓに埋設されたインサート１１に螺着されており、その下端部にはハンガー１２が取り付けてあって、このハンガー１２で野縁受け１３が支持され、この野縁受け１３に取り付けられる野縁（図示省略）を介して天井材（図示省略）が吊持されるようになっている。
【００１０】
本発明の筋交い取付金具３は、図２の（Ａ）から分かるように、１枚の鋼板をプレス加工して形成された金具本体４からなるもので、この金具本体４は、先端側側縁部に吊りボルト係着用切欠溝８を形成した主板部５と、この主板部５の後端部に主板部５の横断面に沿うように直交して連設され、ボルト状筋交い２ａの端部を螺合して取り付ける取付孔としてのネジ孔９を形成した第１副板部６と、前記主板部５の後部側に主板部５の縦断面に沿うように直交して連設され、板状筋交い２ｂの端部をビス止めするためのビス孔１０を複数（例えば、２つ）形成した第２副板部７と、から構成される。尚、第１副板部６にはネジ孔９の代わりに、ネジの切られていないボルト挿通孔を形成してもよく、この場合は、その孔にボルト状筋交い２ａの端部を挿通し、第１副板部６を挟む一対のナットで固定する。
【００１１】
そして、主板部５の先端側側縁部に形成された吊りボルト係着用切欠溝８は、図２の（Ａ）〜（Ｃ）から分かるように、吊りボルト１の直径ｄより僅かに広い開口幅Ｗを有する入口部８ｏと、この入口部８ｏの開口幅Ｗよりも孔長さＬの長い長孔部８ａとからなるもので、この切欠溝８は、図３の（Ａ）及び（Ｂ）に示すように、天井部から垂下された吊りボルト１に対して金具本体４を水平姿勢にすることによって、この吊りボルト１に対する嵌め込み及び離脱が自在となり、また図４の（Ａ）及び（Ｂ）に示すように、天井部から垂下された吊りボルト１に当該切欠溝８を嵌め込んで金具本体４を吊りボルト１に対し一定角度（ここでは、約４５度）に傾斜させることにより、長孔部８ａの両端縁部が吊りボルト１のねじ部に食い込んで、金具本体４の主板部５を吊りボルト１に係着するようになっている。
【００１２】
また吊りボルト係着用切欠溝８の長孔部８ａは、入口部８ｏと反対側の側縁部１４が吊りボルト１の外周とほぼ同じ曲率の円弧状部を形成し、この長孔部８ａの両端縁部１５，１５が夫々吊りボルト１の外周より小さい円弧状部を形成すると共に、隣合う円弧状部１４，１５の交差部１６、及び各円弧状端縁部１４と入口部８ｏの開口端面２０との交差部１７が夫々先鋭突起を形成している。従って、この切欠溝８を吊りボルト１に嵌め込んで金具本体４を吊りボルト１に対し一定角度傾斜させた時、上記交差部１６，１７の先鋭突起が吊りボルト１のねじ部に深く的確に食い込んで、金具本体４の主板部５を吊りボルト１に対し極めて有効に係着固定させることができる。
【００１３】
上記のような構成よりなる筋交い取付金具３の使用方法について、図１及び図５〜図８について説明する。図１は、筋交い２としてボルト状筋交い２ａを使用した場合に、筋交い取付金具３による各ボルト状筋交い２ａの取付状態を示したもので、図５は図１の矢印Ａで示される部分の拡大斜視図であり、図６は図１の矢印Ｂで示される部分の拡大斜視図である。尚、ボルト状筋交い２ａは、その全長にわたってねじが切られているものでもよいし、両端部のみにねじが切られているものでもよい。
【００１４】
例えば、図１に例示する３つの吊りボルト１のうち左側の吊りボルト１と中央側の吊りボルト１とに筋交い取付金具３を取り付ける場合について説明すると、先ず、左側吊りボルト１の上端部と中央側吊りボルト１の下端部に夫々筋交い取付金具３の金具本体４を係着する。この係着操作にあたっては、金具本体４を水平姿勢にして、主板部５の先端部にある吊りボルト係着用切欠溝８をその入口部８ｏから吊りボルト１に嵌め込んで長孔部８ａを吊りボルト１の外周面に当て付け、この状態で金具本体４の後端側を押し上げるか、引き下げるようにして、ボルト１に対し一定角度（ここでは、約４５度）に傾斜させることにより、長孔部８ａの両端縁部１５，１５がボルト１のねじ部に食い込み、それにより金具本体４が吊りボルト１に対し係着されて固定される。
【００１５】
図１の左側にある吊りボルト１の上端部に取り付けられる筋交い取付金具３については、金具本体４の後端側を引き下げた状態とし、この状態でボルト状筋交い２ａの一端部を金具本体４のネジ孔９に必要な長さ以上に深くねじ込んでおき（こうすることにより、ボルト状筋交い２ａの他端部を中央側吊りボルト１の下端部にある取付金具３側のネジ孔９に容易にねじ込むことができる）、しかしてボルト状筋交い２ａの他端部を中央側吊りボルト１の下端部にある取付金具３の金具本体４のネジ孔９に臨ませて、このボルト状筋交い２ａを逆転させながら、その金具本体４のネジ孔９に所要長さねじ込むことにより、ボルト状筋交い２ａの両端部を筋交い取付金具３，３を介して左側と中央側の両吊りボルト１，１に取り付け、この筋交い２ａを緊張状態に架け渡すことができる。
【００１６】
この場合、図５と図６を参照すれば分かるように、ボルト状筋交い２ａの両端部側の取付金具３，３の金具本体４，４は、吊りボルト１に対し同じ向きに係着させる。即ち、この場合の両金具本体４，４は、吊りボルト１に対し例えばその前面側から夫々切欠溝８，８を嵌め込んで係着させる。こうすることによって、ボルト状筋交い２ａを、隣合う吊りボルト１，１の軸芯間に形成される平面に沿って張架させるとこができる。
【００１７】
また、図５及び図６から分かるように、吊りボルト１の上端部では、逆Ｖ字状に配置される両側の取付金具３，３の金具本体４，４の吊りボルト係着用切欠溝８，８同士を、吊りボルト１を挟んで互いに交差するように嵌め込み、また吊りボルト１の下端部でも、Ｖ字状に配置される両側の取付金具３，３の金具本体４，４の吊りボルト係着用切欠溝８，８同士を、吊りボルト１を挟んで互いに交差するように嵌め込んでおり、こうすることによって両側の筋交い２，２の対向する取付金具３，３を吊りボルト１の同じ箇所に取り付けることができる。
【００１８】
図７及び図８は、筋交い２として板状筋交い２ｂを使用した場合の取付状態を示したもので、図７は図５に対応する拡大斜視図であり、図８は図６に対応する拡大斜視図である。各板状筋交い２ｂは、図示のようなチャンネル材からなるものでもよいし、単に帯板状のものでもよいが、何れにしても板状筋交い２ｂの場合は、その板面が鉛直面と平行になるようにして使用され、そして板状筋交い２ｂの端部には複数（ここでは２つ）のビス挿通孔（図示省略）が設けてある。
【００１９】
この板状筋交い２ｂの場合の取付方法は、板状筋交い２ｂの端部を取付金具３の金具本体４に取り付けるのに、金具本体４の第２副板部７に設けてあるビス孔１０を使用して、ビス１８により、板状筋交い２ｂの端部を第２副板部７にビス止めする点が違うだけで、これ以外は、図１、図５及び図６によって説明したボルト状筋交い２ａの場合と全く同様である。従って、詳しい説明は省略する。
【００２０】
以上の説明から分かるように、この発明に係る吊りボルト用の筋交い取付金具３は、部品点数としては金具本体４の１個のみであって、この金具本体４も、先端側側縁部に吊りボルト係着用切欠溝８を形成した主板部５と、この主板部５の後端部に主板部５の横断面に沿うように直交して連設され、ボルト状筋交い２ａの端部を螺合するネジ孔９を形成した第１副板部６と、主板部５の後部側に主板部５の縦断面に沿うように直交して連設され、板状筋交い２ｂの端部をビス止めするためのビス孔１０を形成した第２副板部７とを形成したなる極めて簡単な構造のものからなるため、製作が容易で、極めて安価に提供することができる。
【００２１】
しかも、この筋交い取付金具３は、吊りボルト１に取り付けるにあたっては、金具本体４を水平姿勢にして、主板部５の先端部にある吊りボルト係着用切欠溝８を横方向から吊りボルト１に嵌め込んだ後、金具本体４の後端側を押し上げるか、引き下げるかして、ボルト１に対し一定角度に傾斜させるだけでよいから、図９に示す従来の筋交い取付金具２３に比べて、取付作業がはるかに簡単容易となり、筋交い２の取付作業能率を格段に向上させることができる。
【００２２】
また、この筋交い取付金具３は、図１及び図５〜図８によって説明したように、この１種類の取付金具３を、ボルト状筋交い２ａ及び板状筋交い２ｂの夫々の両端部に使用できると共に、吊りボルト１に対する金具本体４の係着にあたっては、その吊りボルト１の前面側から係着できるし、また切欠溝８の向きを反対にすれば、吊りボルト１の後面側からも係着することができ、非常に使い勝手がよい。
【００２３】
また、この筋交い取付金具３によれば、板状筋交い２ｂの端部をビス止めするためのビス孔１０を形成した第２副板部７が、吊りボルト係着用切欠溝８を形成した主板部５に対し直交するように配置構成されているから、筋交い２として、板状筋交い２ｂを使用する場合に、板状筋交い２ｂの板面が必ず鉛直面と平行になる位置でこの板状筋交い２ｂの端部を金具本体４に取り付けることができ、板状筋交い２ｂの正常な使用が可能となる。
【００２４】
【発明の効果】
請求項１に係る発明の吊りボルト用の筋交い取付金具によれば、部品点数が実質的に金具本体の１個のみで、極めて簡単な構造のものからなるため、製作容易で、安価に提供することができ、しかも吊りボルトに取り付けるにあたっては、金具本体を水平姿勢にして、主板部の先端部にある吊りボルト係着用切欠溝を横方向から吊りボルトに嵌め込んだ後、金具本体の後端側を押し上げるか、引き下げることで、ボルトに対して一定角度に傾斜させるだけでよいから、従来の筋交い取付金具に比べ、取付作業がはるかに簡単容易となって、筋交いの取付作業能率を格段に向上できる。
【００２５】
また、１種類の取付金具を、ボルト状筋交い及び板状筋交いの夫々の両端部に使用できると共に、吊りボルトに対する金具本体の係着にあたっては、その吊りボルトの前面側から係着できるし、また切欠溝の向きを反対にすれば、吊りボルトの後面側からも係着できるなど、この取付金具は、非常に使い勝手がよい。
【００２６】
また、板状筋交いの端部をビス止めするビス孔を形成した第２副板部が、吊りボルト係着用切欠溝を形成した主板部に対して直交するように配置構成されているため、筋交いとして、板状筋交いを使用する場合に、板状筋交いの板面が必ず鉛直面と平行になる位置でこの板状筋交いの端部を金具本体に取り付けることができ、板状筋交いの正常な使用が可能となる。
【００２７】
請求項２に係る発明によれば、第１副板部の取付孔はネジ孔からなるため、ボルト状筋交いの端部を第１副板部に取り付けるには、そのネジ孔にねじ込むだけでよく、その取付作業が極めて簡単となる。
【００２８】
請求項３に係る発明によれば、吊りボルト係着用切欠溝の長孔部は、入口部と反対側の側縁部が吊りボルトの外周とほぼ同じ曲率の円弧状部を形成し、長孔部の両端縁部が夫々吊りボルトの外周より小さい円弧状部を形成すると共に、隣合う円弧状部の交差部、及び端縁側円弧状部と入口部の端面との交差部が夫々先鋭突起を形成しているから、この切欠溝を吊りボルトに嵌め込んで金具本体を吊りボルトに対し一定角度傾斜させた時、上記交差部の先鋭突起が吊りボルトのねじ部に深く的確に食い込んで、金具本体の主板部を吊りボルトに対し極めて有効に係着固定させることができる。
【図面の簡単な説明】
【図１】本発明に係る取付金具を使用して、ボルト状筋交いを架け渡した状態を示す正面図である。
【図２】（Ａ）は筋交い取付金具を示す斜視図、（Ｂ）は平面図、（Ｃ）は同取付金具を（Ａ）の矢印Ｆから見た正面図、（Ｄ）は同取付金具を（Ａ）の矢印Ｅから見た端面図である。
【図３】（Ａ）は取付金具の金具本体を吊りボルトに対し水平姿勢にした状態を示す正面図、（Ｂ）は（Ａ）のＸ−Ｘ線拡大断面図である。
【図４】（Ａ）は取付金具の金具本体を吊りボルトに対し一定角度傾斜させた状態を示す正面図、（Ｂ）は（Ａ）のＹ−Ｙ線拡大断面図である。
【図５】図１の矢印Ａで示される部分の拡大斜視図である。
【図６】図１の矢印Ｂで示される部分の拡大斜視図である。
【図７】筋交いとして板状筋交いを使用した場合における図５と同様な斜視図である。
【図８】筋交いとして板状筋交いを使用した場合における図６と同様な斜視図である。
【図９】（Ａ）は従来の筋交い取付金具を示す分解斜視図、（Ｂ）は板状筋交いを使用した場合での使用状態を示す斜視図、（Ｃ）はボルト状筋交いを使用した場合での使用状態を示す斜視図である。
【符号の説明】
１吊りボルト
２筋交い
２ａボルト状筋交い
２ｂ板状筋交い
３筋交い取付金具
４金具本体
５主板部
６第１副板部
７第２副板部
８吊りボルト係着用切欠溝
８ｏ切欠溝の入口部
８ａ切欠溝の長孔部
９ネジ孔
１０ビス孔
１５切欠溝の長孔部の両端縁部[0001]
BACKGROUND OF THE INVENTION
In the present invention, when the bracing brace is bridged diagonally between the adjacent hanging bolts suspended from the ceiling of the building frame to suspend the ceiling material, the end of each bracing is used as the hanging bolt. The present invention relates to a brace fitting for mounting.
[0002]
[Prior art]
9A shows a conventional brace fitting 23, and FIGS. 9B and 9C show the attached state. The brace fitting 23 has a bolt insertion hole 24 at the front end and a mounting plate 26 provided with a plate-like brace 2b mounting screw hole 25 on the front side thereof, and a right angle to the rear end of the main plate part 26. A metal fitting body 29 comprising a mounting plate 28 formed with a bolt insertion hole 27 that is screwed to the end of the bolt-like brace 2a, and a suspension bolt 1 suspended from the ceiling S of the building frame from both sides. It comprises a pair of holding pieces 30, 30 to be held, and bolts 31 and nuts 32 that fasten and fix both holding pieces 30, 30. Each holding piece 30 has bolt insertion holes 30 b, 30 b at both ends. And a concave portion 30a that engages with the outer peripheral surface of the suspension bolt 1 is formed at the center.
[0003]
When the plate-like brace 2b is attached to the suspension bolt 1 as shown in FIG. 9B by using this mounting bracket 23, for example, the upper end portion of one bolt 1 of both suspension bolts 1 and 1 adjacent to each other. And holding the pair of holding pieces 30, 30 with bolts 31 and nuts 32, and sandwiching the tip of the mounting plate 26 of the metal fitting body 29 on one end side of the holding pieces 30, 30; A pair of holding pieces 30, 30 is fixed to the lower end of the other suspension bolt 1, and the tip end portion of the mounting plate 26 of the metal fitting body 29 is clamped to one end side of the holding pieces 30, 30.
[0004]
Then, the plate-like bracing 2b is obliquely bridged between the two adjacent hanging bolts 1 and 1, and one end of the plate-like bracing 2b is attached to the mounting plate 26 of the metal fitting body 29 on the upper end side of the one hanging bolt 1. The other end portion may be attached to the attachment plate 26 of the metal fitting main body 29 on the lower end side of the other suspension bolt 1 with the screw 33. FIG. 9C shows a state in which the same brace 23 is used and the bolt-shaped bracing 2a is attached to the suspension bolt 1. In this case, the attachment plate 28 of the metal fitting body 29 is used. Then, the end of the bolt-like bracing 2a may be inserted into the bolt insertion hole 27 and fixed with a pair of nuts 34, 34 sandwiching the mounting plate 28.
[0005]
[Problems to be solved by the invention]
The conventional mounting bracket 23 as described above has a problem that the number of parts is large, the manufacturing cost is high, and the mounting of the brace 2 is very troublesome. SUMMARY OF THE INVENTION In view of the above problems, the present invention has an object to provide a brace bracing bracket for a brace bolt that has a small number of parts, can be manufactured at low cost, and can be easily and easily installed.
[0006]
[Means for Solving the Problems]
The bracing brace fitting 3 of the invention according to claim 1 is used for bridging the bracing brace 2 in the form of a plate or plate between adjacent ones of the hanging bolts 1 suspended from the ceiling S of the building frame. A brace fitting for attaching the end of the brace 2 to the suspension bolt 1, the main plate part 5 having a hanging bolt engaging notch groove 8 formed on the front side edge, and the rear end part of the main plate part 5 A first sub-plate portion 6 which is provided in a perpendicular manner so as to follow the transverse section of the main plate portion 5 and has an attachment hole for attaching an end portion of the bolt-like brace 2a, and the main plate portion 5 on the rear side of the main plate portion 5. A metal fitting body 4 comprising a second sub-plate portion 7 formed by connecting a screw hole 10 for screwing an end portion of the plate-like brace 2b, which is provided in a perpendicular manner so as to follow the longitudinal section, The notch groove 8 has an opening width W slightly wider than the diameter d of the suspension bolt 1. Part 8o and a long hole part 8a which is longer than the opening width W of the inlet part 8o. When the metal fitting body 4 is placed in a horizontal position, it can be freely attached to and detached from the suspension bolt 1, and the suspension bolt 1 When the fitting main body 4 is inclined at a fixed angle with respect to the suspension bolt 1, both end edges 15, 15 of the elongated hole portion 8 a are bitten into the suspension bolt 1 and are engaged. .
[0007]
According to a second aspect of the present invention, in the brace brace fitting according to the first aspect, the attachment hole of the first sub-plate portion 6 is formed by a screw hole 9.
[0008]
According to a third aspect of the present invention, in the brace brace fitting according to the first aspect, the elongated hole portion 8a of the notch groove 8 is substantially the same as the outer periphery of the suspension bolt 1 at the side edge portion 14 on the opposite side to the inlet portion 8o. An arcuate part of curvature is formed, and both end edges 15 and 15 of the long hole part 8a form arcuate parts smaller than the curvature of the outer periphery of the suspension bolt 1 and intersecting parts of adjacent arcuate parts 14 and 15 16 and the intersecting portion 17 between the edge-side arcuate portion 15 and the opening end face 20 of the inlet portion 8o each form a sharp protrusion.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the mounting bracket 3 according to the present invention between the suspension bolts 1, 1 of the suspension bolts 1, which are suspended from the ceiling slab S of the building frame. It is a front view which shows the state which spanned the brace 2 using, (A) of FIG. 2 is a perspective view which shows the brace attachment bracket 3, (B) is the top view, (C) is the attachment bracket 3. The front view which looked at from the arrow F of (A), (D) is the end elevation which looked at the mounting bracket 3 from the arrow E of (A). An upper end portion of each suspension bolt 1 is screwed to an insert 11 embedded in a ceiling slab (ceiling portion) S, and a hanger 12 is attached to the lower end portion of the suspension bolt 1. The ceiling material (not shown) is suspended through a field edge (not shown) attached to the field edge receiver 13.
[0010]
As can be seen from FIG. 2A, the brace fitting 3 of the present invention is composed of a bracket body 4 formed by pressing a single steel plate. The main plate part 5 in which the hanging bolt engaging notch groove 8 is formed in the part, and the rear end part of the main plate part 5 are connected orthogonally so as to follow the transverse section of the main plate part 5, and the end part of the bolt-like bracing 2a A first sub-plate portion 6 in which a screw hole 9 is attached as a mounting hole to be screwed together, and a rear side of the main plate portion 5 are orthogonally connected so as to follow the longitudinal section of the main plate portion 5. And a second sub-plate portion 7 in which a plurality of (for example, two) screw holes 10 for screwing the end portion of the braid 2b are formed. The first sub-plate portion 6 may be formed with an unthreaded bolt insertion hole instead of the screw hole 9. In this case, the end of the bolt-like bracing 2a is inserted into the hole. The first sub-plate portion 6 is fixed with a pair of nuts.
[0011]
The suspension bolt engaging notch groove 8 formed at the front end side edge of the main plate portion 5 is an opening slightly wider than the diameter d of the suspension bolt 1 as can be seen from FIGS. An inlet portion 8o having a width W and a long hole portion 8a having a hole length L longer than the opening width W of the inlet portion 8o, and the notch groove 8 are formed as shown in FIGS. As shown in FIG. 4, when the metal fitting body 4 is placed in a horizontal posture with respect to the suspension bolt 1 suspended from the ceiling, the fitting and disengagement with respect to the suspension bolt 1 can be freely performed. As shown in B), by fitting the notch groove 8 into the suspension bolt 1 suspended from the ceiling and inclining the metal fitting body 4 to the suspension bolt 1 at a constant angle (here, about 45 degrees), Both end edges of the long hole portion 8a bite into the thread portion of the suspension bolt 1 The bolt 1 hanging main plate portion 5 of the fitting main body 4 is adapted to engaged.
[0012]
Further, the elongated hole 8a of the hanging bolt engaging cutout groove 8 has a side edge portion 14 on the opposite side to the inlet portion 8o forming an arc-shaped portion having substantially the same curvature as the outer periphery of the hanging bolt 1, and the elongated hole portion 8a Both edge portions 15 and 15 form an arcuate portion smaller than the outer periphery of the suspension bolt 1, the intersection 16 of the adjacent arcuate portions 14 and 15, and the opening of each arcuate edge portion 14 and the inlet portion 8 o. Each intersection 17 with the end face 20 forms a sharp projection. Accordingly, when the notch groove 8 is fitted into the suspension bolt 1 and the metal fitting body 4 is inclined at a certain angle with respect to the suspension bolt 1, the sharp protrusions of the intersecting portions 16, 17 are deeply and accurately attached to the thread portion of the suspension bolt 1. The main plate portion 5 of the metal fitting body 4 can be engaged and fixed to the suspension bolt 1 very effectively.
[0013]
A method of using the brace fitting 3 having the above-described configuration will be described with reference to FIGS. 1 and 5 to 8. FIG. 1 shows a state in which each bolt-like brace 2a is attached by the brace fitting 3 when a bolt-like brace 2a is used as the brace 2. FIG. 5 is an enlarged view of a portion indicated by an arrow A in FIG. FIG. 6 is an enlarged perspective view of a portion indicated by an arrow B in FIG. The bolt-like bracing 2a may be threaded over its entire length, or may be threaded only at both ends.
[0014]
For example, the case where the brace fitting 3 is attached to the left suspension bolt 1 and the central suspension bolt 1 among the three suspension bolts 1 illustrated in FIG. 1 will be described. First, the upper end portion and the center of the left suspension bolt 1 are described. The bracket body 4 of the brace fitting 3 is engaged with the lower end portion of the side suspension bolt 1. In this engaging operation, the metal fitting body 4 is placed in a horizontal posture, and the hanging bolt engaging notch groove 8 at the tip of the main plate portion 5 is fitted into the hanging bolt 1 from the inlet portion 8o to suspend the long hole portion 8a. By applying to the outer peripheral surface of the bolt 1 and in this state pushing up or pulling down the rear end side of the metal fitting body 4, the bolt 1 is inclined at a certain angle (about 45 degrees in this case), thereby oblong holes. Both edge portions 15 and 15 of the portion 8a bite into the threaded portion of the bolt 1, whereby the metal fitting body 4 is engaged with and fixed to the suspension bolt 1.
[0015]
The brace fitting 3 attached to the upper end of the suspension bolt 1 on the left side of FIG. 1 is in a state in which the rear end side of the bracket body 4 is pulled down, and in this state, one end of the bolt-like brace 2a is connected to the bracket body 4. Screw into the screw hole 9 deeper than necessary (this makes it easy to connect the other end of the bolt-like brace 2a to the screw hole 9 on the mounting bracket 3 side at the lower end of the central suspension bolt 1). However, the other end of the bolt-shaped bracing 2a faces the screw hole 9 of the bracket body 4 of the mounting bracket 3 at the lower end of the central suspension bolt 1, and this bolt-shaped bracing 2a is reversed. Then, by screwing the required length into the screw hole 9 of the metal fitting body 4, both ends of the bolt-like brace 2 a are attached to the left and center suspension bolts 1, 1 via the brace fittings 3, 3. This brace It can be passed over a tense state.
[0016]
In this case, as can be seen with reference to FIGS. 5 and 6, the metal fitting bodies 4, 4 of the attachment metal fittings 3, 3 on both ends of the bolt-shaped bracing 2 a are engaged with the suspension bolt 1 in the same direction. That is, in this case, the two metal fittings 4 and 4 are engaged with the suspension bolt 1 by fitting the notch grooves 8 and 8 respectively from the front side. By doing so, the bolt-like bracing 2a can be stretched along a plane formed between the axial centers of the adjacent suspension bolts 1 and 1.
[0017]
Further, as can be seen from FIGS. 5 and 6, at the upper end of the suspension bolt 1, the suspension bolt engaging notch groove 8 of the bracket body 4, 4 of the mounting bracket 3, 3 on both sides arranged in an inverted V shape, 8 are fitted so as to cross each other with the suspension bolt 1 sandwiched between them, and also at the lower end of the suspension bolt 1, the suspension bolts of the bracket main bodies 4, 4 of the mounting brackets 3, 3 on both sides arranged in a V-shape. The wearing notch grooves 8 and 8 are fitted so as to cross each other with the suspension bolt 1 interposed therebetween, and thus the opposing mounting brackets 3 and 3 of the braces 2 and 2 on both sides are attached to the same portion of the suspension bolt 1. Can be attached to.
[0018]
7 and 8 show an attachment state when the plate-like bracing 2b is used as the brace 2. FIG. 7 is an enlarged perspective view corresponding to FIG. 5, and FIG. 8 is an enlarged view corresponding to FIG. It is a perspective view. Each plate-like brace 2b may be made of a channel material as shown in the figure, or may be simply a strip-like one. In any case, in the case of the plate-like brace 2b, the plate surface is parallel to the vertical plane. A plurality of (here, two) screw insertion holes (not shown) are provided at the end of the plate bracing 2b.
[0019]
In the case of this plate-like brace 2b, the screw hole 10 provided in the second sub-plate part 7 of the metal fitting body 4 is used to attach the end of the plate-like brace 2b to the metal fitting body 4 of the fitting 3. The only difference is that the end of the plate-like bracing 2b is screwed to the second sub-plate portion 7 with the screw 18, except that the bolt-like bracing described with reference to FIGS. 1, 5, and 6 is used. This is exactly the same as 2a. Therefore, detailed description is omitted.
[0020]
As can be seen from the above description, the bracing bracket 3 for hanging bolts according to the present invention has only one bracket body 4 as the number of parts, and this bracket body 4 is also suspended from the edge on the tip side. A main plate portion 5 having a notch groove 8 for engaging with a bolt and a rear end portion of the main plate portion 5 are connected perpendicularly along the transverse section of the main plate portion 5, and the end portions of the bolt-shaped bracing 2a are screwed together. The first sub-plate portion 6 in which the screw holes 9 are formed and the rear side of the main plate portion 5 are orthogonally connected so as to follow the longitudinal section of the main plate portion 5 and are screwed to the end portions of the plate-like bracing 2b. Therefore, since the second sub-plate portion 7 having the screw holes 10 for forming the first sub-plate portion 7 is formed with a very simple structure, it is easy to manufacture and can be provided at a very low cost.
[0021]
Moreover, when the brace fitting 3 is attached to the suspension bolt 1, the bracket body 4 is placed in a horizontal position, and the suspension bolt engagement notch groove 8 at the tip of the main plate portion 5 is fitted to the suspension bolt 1 from the lateral direction. After that, the rear end side of the metal fitting body 4 can be pushed up or down to be inclined at a certain angle with respect to the bolt 1, so that the mounting work is more difficult than the conventional brace fitting 23 shown in FIG. It becomes much easier and easier, and the efficiency of attaching the brace 2 can be remarkably improved.
[0022]
In addition, as described with reference to FIG. 1 and FIGS. 5 to 8, the brace mounting bracket 3 can use this one type of mounting bracket 3 at both ends of the bolt-like bracing 2 a and the plate-like bracing 2 b. When the metal fitting body 4 is attached to the suspension bolt 1, it can be attached from the front surface side of the suspension bolt 1, or from the rear surface side of the suspension bolt 1 if the direction of the notch groove 8 is reversed. Can be very convenient.
[0023]
Further, according to the brace mounting bracket 3, the second sub-plate part 7 in which the screw hole 10 for screwing the end of the plate-like brace 2b is formed is the main plate part in which the notch groove 8 for hanging the suspension bolt is formed. 5, when using a plate-like brace 2b as the brace 2, this plate-like brace 2b is located at a position where the plate surface of the plate-like brace 2b is always parallel to the vertical plane. Can be attached to the metal fitting body 4, and the plate-like bracing 2b can be used normally.
[0024]
【The invention's effect】
According to the brace brace fitting for the suspension bolt according to the first aspect of the present invention, since the number of parts is substantially only one of the bracket main body and it has an extremely simple structure, it is easy to manufacture and is provided at low cost. In addition, when attaching to the suspension bolt, place the bracket body in a horizontal position, insert the suspension bolt engagement notch groove at the front end of the main plate into the suspension bolt from the side, and then the rear end of the bracket body. By simply pushing up or pulling down the side, it is only necessary to incline at a fixed angle with respect to the bolt, making the installation work much easier and easier than conventional brace fittings, and dramatically improving the brace installation work efficiency. It can be improved.
[0025]
In addition, one type of mounting bracket can be used for both ends of the bolt-like brace and plate-like brace, and when the bracket body is engaged with the suspension bolt, it can be engaged from the front side of the suspension bolt. If the direction of the notch groove is reversed, the mounting bracket can be attached from the rear side of the suspension bolt.
[0026]
In addition, since the second sub-plate part in which the screw hole for screwing the end of the plate-like bracing is formed is arranged so as to be orthogonal to the main plate part in which the hanging bolt engaging notch groove is formed, When using a brace, the end of the brace can be attached to the bracket body at a position where the plate surface of the brace is always parallel to the vertical plane. Is possible.
[0027]
According to the second aspect of the present invention, since the mounting hole of the first sub-plate portion is a screw hole, in order to attach the end of the bolt-like bracing to the first sub-plate portion, it is only necessary to screw into the screw hole. The mounting work is extremely simple.
[0028]
According to the invention of claim 3, the elongated hole portion of the notch groove for engaging the suspension bolt forms an arc-shaped portion having a side edge on the opposite side to the inlet portion and substantially the same curvature as the outer periphery of the suspension bolt. Both end edges of each part form an arcuate part smaller than the outer periphery of the suspension bolt, and the intersecting part of the adjacent arcuate parts and the intersecting part of the edge side arcuate part and the end face of the inlet part respectively have sharp projections. Since the notch groove is inserted into the suspension bolt and the bracket body is inclined at a certain angle with respect to the suspension bolt, the sharp projection at the intersection intersects with the threaded portion of the suspension bolt deeply and accurately. The main plate portion of the main body can be engaged and fixed to the suspension bolt very effectively.
[Brief description of the drawings]
FIG. 1 is a front view showing a state where bolt-like braces are bridged using a mounting bracket according to the present invention.
2A is a perspective view showing a brace mounting bracket, FIG. 2B is a plan view, FIG. 2C is a front view of the mounting bracket viewed from the arrow F in FIG. 2A, and FIG. It is the end elevation which looked at from arrow E of (A).
FIG. 3A is a front view showing a state in which a metal fitting body of a mounting metal fitting is in a horizontal posture with respect to a suspension bolt, and FIG. 3B is an enlarged sectional view taken along line XX in FIG.
4A is a front view showing a state in which the metal fitting body of the attachment metal is inclined at a certain angle with respect to the suspension bolt, and FIG. 4B is an enlarged sectional view taken along line YY of FIG.
FIG. 5 is an enlarged perspective view of a portion indicated by an arrow A in FIG.
6 is an enlarged perspective view of a portion indicated by an arrow B in FIG.
7 is a perspective view similar to FIG. 5 when a plate-like bracing is used as the bracing. FIG.
FIG. 8 is a perspective view similar to FIG. 6 when a plate-like bracing is used as the bracing.
9A is an exploded perspective view showing a conventional brace fitting, FIG. 9B is a perspective view showing a use state when a plate-like brace is used, and FIG. 9C is a case where a bolt-like brace is used. It is a perspective view which shows the use condition in.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Suspension bolt 2 Bracing 2a Bolt-like bracing 2b Plate-like bracing 3 Bracing fitting 4 Bracket main body 5 Main plate part 6 1st subplate part 7 2nd subplate part 8 Notch groove 8o for hanging bolt engagement Notch groove 8a Notch Slot long hole 9 Screw hole 10 Screw hole 15 Both ends of the long hole of the cutout groove

Claims

A brace fitting for attaching the bracing brace brace between adjacent bolts suspended from the ceiling of the building frame to attach the bracing end to the hanging bolt,
A main plate part having a notch groove for hanging a suspension bolt on the front side edge and a rear end part of the main plate part orthogonally connected along the cross section of the main plate part, and attaching an end portion of the bolt-like bracing A first sub-plate part in which a mounting hole is formed, and a screw hole for screwing the end of the plate-like brace are formed on the rear side of the main plate part so as to follow the longitudinal section of the main plate part. The second sub-plate part, and a metal fitting body comprising:
The notch groove is composed of an inlet portion having an opening width slightly wider than the diameter of the suspension bolt and a long hole portion having a length longer than the opening width of the inlet portion. Suspended so that it can be freely inserted into and removed from the bolt, and when the metal fitting is tilted at a certain angle with respect to the suspension bolt by fitting into the suspension bolt, both end edges of the elongated hole bite into and engage with the suspension bolt. Bracing bracket for bolts.

The brace bracket fitting for suspension bolts according to claim 1, wherein the attachment hole of the first sub-plate portion is a screw hole.

The elongated hole portion of the notch groove has an arcuate portion having a curvature substantially the same as the outer periphery of the suspension bolt on the side edge opposite to the inlet portion, and both end edges of the elongated hole portion are each a curvature of the outer periphery of the suspension bolt. The smaller arcuate part is formed, and the intersecting part of adjacent arcuate parts and the intersecting part of the edge-side arcuate part and the opening end surface of the entrance part respectively form a sharp projection. Bracket mounting bracket for hanging bolt as described.