JP3838640B2

JP3838640B2 - Hanging bolt support

Info

Publication number: JP3838640B2
Application number: JP2002281319A
Authority: JP
Inventors: 慶一菅谷; 政幸高木
Original assignee: 株式会社ブレスト工業研究所
Priority date: 2002-09-26
Filing date: 2002-09-26
Publication date: 2006-10-25
Anticipated expiration: 2022-09-26
Also published as: JP2004116658A

Description

【０００１】
【発明の属する技術分野】
本発明は横架材に吊りボルトを支持させるための支持具に関する。
【０００２】
【従来の技術及び解決しようとする課題】
ビルディング、工場、倉庫、駅舎、その他種々の建造物において、天井近傍などの上部に横架材（例えばリップ溝形鋼やＬ形鋼など）を水平方向に設置し、この横架材に照明器具やその他種々の機器を吊りボルトを用いて吊り下げ支持させることが、一般に行われている。
【０００３】
図２１、２２はこの横架材（例えばリップ溝形鋼１）に吊りボルトの上端部を支持させるための従来の吊りボルト支持具の一例を示している。
リップ溝形鋼１は、図２１、２２に示すように、底面板２と、この底面板２の両側から直角に設けられた２つの側面板３ａ、３ｂと、各側面板３ａ、３ｂの先端から直角に内側に折曲げられた各折曲げ縁部４ａ、４ｂとで構成され、各折曲げ縁部４ａ、４ｂの先端間に開口部５が形成されている。
【０００４】
図２１、２２に示す従来の吊りボルト支持具１０は、締付けボルト１１を螺着するためのネジ穴１２ａ及び吊りボルト６の上端部を螺着するためのネジ穴１２ｂを備えた底板１２と、この底板１２の両側から上側へ直角に折曲げられ、リップ溝形鋼１の下側の折曲げ縁部４ａを横方向の開口１３ａから上方へ挿入するための挿入溝１３ｂを備えた２つの側板１３、１３とで構成されている。
【０００５】
従って、この従来の吊りボルト支持具１０を用いて吊りボルト６を支持させるには、２つの側板１３、１３の開口１３ａ、１３ａから挿入溝１３ｂ、１３ｂ内へリップ溝形鋼１の下側の折曲げ縁部４ａを挿入し、ネジ穴１２ａに螺着した締付けボルト１１をネジ込んで締付けボルト１１の先端１１ａと２つの側板１３の各当接部１３ｃ、１３ｃの下端との間でリップ溝形鋼１の下側の側面板３ａを強く挟持することによって吊りボルト支持具１０をリップ溝形鋼１に固定し、上端近傍にナット７を螺着した吊りボルト６を吊りボルト支持具１０の底板１２のネジ穴１２ｂに螺着しさらにネジ込んで吊りボルト６の上端部を上方へ進出させた後、吊りボルト６がぐらつかないように底板１２の下側からナット７を締付けていた。
【０００６】
また、図２３はリップ溝形鋼１に吊りボルト６の上端部を支持させるための従来の他の例の吊りボルト支持具２０を示している。
【０００７】
この吊りボルト支持具２０は、先端に挟持片２１が折り返された支持板２２と、吊りボルト６の上端が取付けられるほぼ三角形状に折曲げられた取付け部２３とで構成されている。
【０００８】
挟持片２１はバネ性を有し、下端部２１ａは支持板２２から離れる方向に開いている。
取付け部２３は、吊りボルト６の上端を螺着するためのネジ穴２４ａを備えた底板２４と、この底板２４の一端から垂直に折曲げられた垂直板２５と、底板２４の他端から垂直板２５側へ斜め方向に折曲げられ長穴２６ａを備えた傾斜板２６と、この傾斜板２６の上端から垂直板２５と平行な方向に延設された重ね板２７とから成り、垂直板２５と重ね板２７が重ね合わせた状態で支持板２２の下部に取付けられている。
【０００９】
従って、この従来の吊りボルト支持具２０を用いて吊りボルト６の上端部を支持させるには、リップ溝形鋼１の下側の折曲げ縁部４ａの上端を支持板２２の上部と挟持片２１の下端部２１ａの間に位置させ、支持板２２の上端をハンマーなどで下方へ打撃して支持板２２の上端部と挟持片２１の間に折曲げ縁部４ａの上端部を叩き込んで固定し、上端近傍にナット２８を螺着した吊りボルト６を吊りボルト支持具２０の底板２４のネジ穴２４ａに螺着し、さらにネジ込んで吊りボルト６の上端部を長穴２６ａの上方へ進出させた後、吊りボルト６がぐらつかないように底板２４の下側からナット２８を締付けていた。
【００１０】
しかしながら、このような従来方法では、いずれも高所にある横架材（リップ溝形鋼１）の高さで脚立などを用いて吊りボルト支持具１０、２０や吊りボルト６の固定作業を行なわなければならないため、非常に危険であった。
【００１１】
また、図２１、２２の吊りボルト支持具１０では、締付けボルト１１の締付け、吊りボルト６のネジ穴１２ｂへの螺着、ナット７の締付けの３つの作業が必要なため、非常に煩雑で作業性が悪く多大な時間がかかっていた。
【００１２】
また、図２３の吊りボルト支持具２０では、ハンマーなどによる叩き込み、吊りボルト６のネジ穴２４ａへの螺着、ナット２８の締付けの３つの作業が必要なため、非常に煩雑で作業性が悪く多大な時間がかかっていた。また、ハンマーなどによる叩き込みはリップ溝形鋼１の上下の折曲げ縁部４ｂ、４ａ間の狭い開口部５内で行なわなければならないため、非常にやりにくかった。
【００１３】
本発明はこのような問題を解決し、高所作業を不要にし、且つ作業性を良くした吊りボルト支持具を提供することを目的としている。
【００１４】
【課題を解決するための手段】
前記目的を達成するために、本発明の請求項１の吊りボルト支持具は、
ネジ穴が設けられた平板と、前記平板の両側から下方へ延設された一対の脚板と、前記脚板から横方向に延設された受け部とを備えた下部金具と、
上板と、前記上板の両側から下方へ延設され、前記受け部側の下端に挟持部を有する一対の側板とを備えた上部金具とから成り、
前記下部金具の上部に外側から前記上部金具を被せた状態で、前記下部金具の前記一対の脚板の上部で且つ前記平板のネジ穴より前記受け部側の位置において前記下部金具の前記一対の脚板と前記上部金具の前記一対の側板とが回動自在に連結されていて、
前記下部金具の前記ネジ穴に下側から吊りボルトの上端部を螺着して上方へ進出させ、吊りボルトの上端で前記上部金具の上板部の下面を押圧することによって前記上部金具の前記挟持部を前記下部金具の前記受け部に接近する方向に回動させることによって、前記上部金具の前記挟持部と前記下部金具の前記受け部とで横架材の板部を挟持させるようにしている。
【００１５】
このように構成したため、前記下部金具の前記ネジ穴に下側から吊りボルトの上端部を螺着して上方へ僅かに進出させた状態で作業者が吊りボルトの下部を手に持って、上方の横架材の板部を前記下部金具の受け部と前記上部金具の挟持部の間に挿入し、手に持った吊りボルトを捻じって前記ネジ穴に螺着された上端部をさらに上方へ進出させ、これによって前記上部金具の上板を吊りボルトの上端で押圧して前記上部金具を回動させて、前記受け部と挟持部とで横架材の板部を挟持させればよいから、横架材のはるか下方からの操作で横架材に吊りボルトの上端部を支持させることができる。
【００１６】
また、本発明の請求項２の吊りボルト支持具は、
ネジ穴が設けられた平板と、前記平板の両側から下方へ延設された一対の脚板と、前記脚板から横方向に延設された受け部とを備えた下部金具と、
上板と、前記上板の両側から下方へ延設され、前記受け部側の下端に挟持部を有し、且つ、前記挟持部より中央寄りに下端から上方へ設けられた切欠きを有する一対の側板とを備えた上部金具とから成り、
前記下部金具の上部に外側から前記上部金具を被せた状態で、前記下部金具の前記一対の脚板の上部で且つ前記平板のネジ穴より前記受け部側の位置において前記下部金具の前記一対の脚板と前記上部金具の前記一対の側板とが回動自在に連結されていて、
前記下部金具の前記ネジ穴に下側から吊りボルトの上端部を螺着して上方へ進出させ、吊りボルトの上端で前記上部金具の上板部の下面を押圧することによって前記上部金具の前記挟持部を前記下部金具の前記受け部に接近する方向に回動させることによって、前記上部金具の前記切欠きに横架材の折曲げ縁部を進入させると共に、前記上部金具の前記挟持部と前記下部金具の前記受け部とで横架材の板部を挟持させるようにしている。
【００１７】
このように構成したため、前記下部金具の前記ネジ穴に下側から吊りボルトの上端部を螺着して上方へ僅かに進出させた状態で作業者が吊りボルトの下部を手に持って、上方の横架材の板部を前記下部金具の受け部と前記上部金具の挟持部の間に挿入し、手に持った吊りボルトを捻じって前記ネジ穴に螺着された上端部をさらに上方へ進出させ、これによって前記上部金具の上板を吊りボルトの上端で押圧して前記上部金具を回動させて、横架材の折曲げ縁部を前記上部金具の切欠きに進入させると共に、前記受け部と挟持部とで横架材の板部を挟持させればよいから、横架材のはるか下方からの操作で横架材に吊りボルトの上端部を支持させることができる。
【００１８】
また、本発明の請求項３の吊りボルト支持具は、
上板と、前記上板の両側から下方へ延設された一対の脚板と、前記脚板から横方向へ延設された受け部とを備えた外部金具と、
ネジ穴が設けられた平板と、前記平板の両側から下方へ延設され、前記受け部側の下端に挟持部を有する一対の側板とを備えた内部金具とから成り、
前記内部金具に外側から前記外部金具を被せた状態で、前記内部金具の前記ネジ穴に下側から吊りボルトの上端部を螺着して上方へ進出させ、吊りボルトの上端で前記外部金具の上板の下面を押圧することによって前記内部金具を前記外部金具に対して下降させることによって、前記内部金具の前記挟持部と前記外部金具の前記受け部とで横架材の板部を挟持させるようにしている。
【００１９】
このように構成したため、前記内部金具の前記ネジ穴に下側から吊りボルトの上端部を螺着して上方へ僅かに進出させた状態で作業者が吊りボルトの下部を手に持って、上方の横架材の板部を前記外部金具の受け部と前記内部金具の挟持部の間に挿入し、手に持った吊りボルトを捻じって前記ネジ穴に螺着された上端部をさらに上方へ進出させ、これによって前記外部金具の上板を吊りボルトの上端で押圧することによって前記内部金具を下降させて、前記受け部と挟持部とで横架材の板部を挟持させればよいから、横架材のはるか下方からの操作で横架材に吊りボルトの上端部を支持させることができる。
【００２０】
また、本発明の請求項４の吊りボルト支持具は、
上板と、前記上板の両側から下方へ延設された一対の脚板と、前記脚板から横方向へ延設された受け部とを備えた外部金具と、
ネジ穴が設けられた平板と、前記平板の両側から下方へ延設され、前記受け部側の下端に挟持部を有し、且つ、前記挟持部より中央寄りに下端から上方へ設けられた切欠きを有する一対の側板とを備えた内部金具とから成り、
前記内部金具に外側から前記外部金具を被せた状態で、前記内部金具の前記ネジ穴に下側から吊りボルトの上端部を螺着して上方へ進出させ、吊りボルトの上端で前記外部金具の上板の下面を押圧することによって前記内部金具を前記外部金具に対して下降させることによって、前記内部金具の前記切欠きに横架材の折曲げ縁部を進入させると共に、前記内部金具の前記挟持部と前記外部金具の前記受け部とで横架材の板部を挟持させるようにしている。
【００２１】
このように構成したため、前記内部金具の前記ネジ穴に下側から吊りボルトの上端部を螺着して上方へ僅かに進出させた状態で作業者が吊りボルトの下部を手に持って、上方の横架材の板部を前記外部金具の受け部と前記内部金具の挟持部の間に挿入し、手に持った吊りボルトを捻じって前記ネジ穴に螺着された上端部をさらに上方へ進出させ、これによって前記外部金具の上板を吊りボルトの上端で押圧することによって前記内部金具を下降させて、横架材の折曲げ縁部を前記内部金具の切欠きに進入させると共に、前記受け部と挟持部とで横架材の板部を挟持させればよいから、横架材のはるか下方からの操作で横架材に吊りボルトの上端部を支持させることができる。
【００２４】
【発明の実施の形態】
以下、図面に基づいて本発明の実施の形態を説明する。
図１〜６は本発明の吊りボルト支持具の一実施形態を示している。
【００２５】
この吊りボルト支持具３０は、下部金具４０と上部金具５０によって構成されている。
下部金具４０は、平板４１と、この平板４１の両側から下方へほぼ垂直方向に延設された互いに平行な一対の脚板４２、４３を備えている。
【００２６】
一対の脚板４２、４３には、前記平板４１の近傍で且つ横方向の一端側において、上部金具５０を連結するための軸穴（連結部）４２ａ、４３ａがそれぞれに設けられている。
【００２７】
前記脚板４２、４３の横方向の一端側（軸穴４２ａ、４３ａ側）において、且つ、脚板４２、４３の下端部において、横架材の板部の下面を上端面４４ａ、４５ａで受けるための一対の互いに平行な平板状の受け部４４、４５がそれぞれ横方向に延設されている。
前記平板４１には、脚板４２、４３の前記軸穴４２ａ、４３ａに関して前記受け部４４、４５と反対側の位置に、吊りボルト６の上端部を螺着するためのネジ穴４１ａが設けられている。
【００２８】
上部金具５０は、上板５１と、この上板５１の両側から下方に前記下部金具４０の一対の脚板４２、４３の外側に位置するようにほぼ垂直方向に延設された互いに平行な一対の側板５２、５３とを備えている。この側板５２、５３の下端寄りで且つ横方向の中間部において、下部金具４０を連結するための軸穴（連結部）５２ａ、５３ａが設けられている。
【００２９】
そして、下部金具４０の上部に外側から上部金具５０を被せた状態で、上部金具５０及び下部金具４０の前記軸穴５２ａ、５３ａ、４２ａ、４３ａに、ボルト６０の軸６０ａが挿通され、軸６０ａの先端にナット６１が螺着されていて、ボルト６０の頭部６０ｂとナット６１とで上部金具５０の側板５２、５３の横方向の動きが規制されている。このようにして下部金具４０に上部金具５０が軸６０ａを中心に回動自在に連結されている。
【００３０】
上部金具５０の側板５２、５３の上下方向の高さは、上部金具５０が水平状態の場合に、側板５２、５３の下部金具４０の受け部４４、４５側の端部の下端の挟持部５４、５５と下部金具４０の受け部４４、４５の上端面４４ａ、４５ａとの間隔が横架材の挟持されるべき板部（前記リップ溝形鋼１の側板３ａあるいは図３、４に示すＬ形鋼７の水平板７ａ）の厚さより大となるように設定されている。
【００３１】
前記挟持部５４、５５は、図４、図６に示すように上部金具５０が反時計回りに回動した状態で横架材の板部（リップ溝形鋼１の側板３ａあるいはＬ形鋼７の水平板７ａ）の上面に接触しやすいように、また、リップ溝形鋼１の側板３ａあるいはＬ形鋼７の水平板７ａを下部金具４０の受け部４４、４５の上端面４４ａ、４５ａとの間に挿入しやすいように、テーパー状にすることが望ましい。
【００３２】
また、上部金具５０の側板５２、５３には、前記挟持部５４、５５と軸穴５２ａ、５３ａとの間において、前記リップ溝形鋼１の下側の折曲げ縁部４ａを受け入れるための切欠き５６、５７が設けられている。この切欠き５６、５７の入口側（下側）は上部金具５０の回動時に前記折曲げ縁部４ａに衝突しないように下側が次第に広がった形状となっている。
【００３３】
なお、上部金具５０の前記軸穴５２ａ、５３ａの位置を上部金具５０の重心位置より挟持部５４、５５寄りにすれば、上部金具５０を下部金具４０に連結した状態で、図３、図５に示すように上部金具５０が自重で時計回りに回動して挟持部５４、５５と受け部４４、４５の上端面４４ａ、４５ａとの間隔が開くから、リップ溝形鋼１の側板３ａあるいはＬ形鋼７の水平板７ａを挟持部５４、５５と受け部４４、４５の上端面４４ａ、４５ａとの間隔に挿入しやすくなる。
【００３４】
次に、この吊りボルト支持具３０の使用法を説明する。
まず、図３あるいは図５に示すように、吊りボルト６をその上端６ａが下部金具４０の平板４１のネジ穴４１ａから上方へ僅かに突出した状態に螺着する。
【００３５】
そして、吊りボルト６の下端部を作業者が手で持って、吊りボルト６の上端部の吊りボルト支持具３０を上方の横架材、例えば図３に示すようにＬ形鋼７の高さまで差し上げた後、吊りボルト支持具３０を左方へ動かして、横架材の板部（Ｌ形鋼７の水平板７ａ）を、下部金具４０の受け部４４、４５の上端面４４ａ、４５ａと上部金具５０の挟持部５４、５５の間に奥まで挿入する。
【００３６】
そして、この状態で吊りボルト６を下方から手であるいは電動回転工具などを用いて回転させて、図４に示すように吊りボルト６の上端６ａを前記ネジ穴４１ａにおいてさらに上方へ進出させる。これによって上部金具５０の上板５１を吊りボルト６の上端６ａで押圧して、上部金具５０を軸６０ａを中心に反時計回りに回動させて、受け部４４、４５の上端部４４ａ，４５ａと挟持部５４、５５とで横架材の板部（Ｌ形鋼７の水平板７ａ）を強く挟持させることにより、水平板７ａに吊りボルト支持具３０及び吊りボルト６がしっかりと固定できる。
【００３７】
このように、横架材（Ｌ形鋼７）のはるか下方からの操作で横架材（Ｌ形鋼７）に吊りボルト６の上部を支持させることができる。
【００３８】
なお、図５、６に示すように、横架材がリップ溝形鋼１である場合には、吊りボルト６の下端部を作業者が手で持って、上端の吊りボルト支持具３０の上部金具５０の左端側をリップ溝形鋼１の開口部５に入れるようにして、下側の折曲げ縁部４ａを下部金具４０の受け部４４、４５の上端面４４ａ、４５ａと上部金具５０の挟持部５４、５５の間に奥まで挿入させる。
【００３９】
そして、吊りボルト６を下方から手であるいは電動回転工具などを用いて回転させて吊りボルト６の上端６ａを前記ネジ穴４１ａにおいてさらに上方へ進出させ、これによって上部金具５０の上板５１を吊りボルト６の上端６ａで押圧して上部金具５０を軸６０ａを中心に反時計回りに回動させて、折曲げ縁部４ａを上部金具５０の側板５２、５３の切欠き５６、５７内に進入させると共に、受け部４４、４５の上端部４４ａ，４５ａと挟持部５４、５５とで横架材の板部（リップ溝形鋼１の下側の側板３ａ）を挟持させる。
【００４０】
このようにして、横架材（リップ溝形鋼１）のはるか下方からの操作で吊りボルト６の上部を横架材（リップ溝形鋼１）に支持させることができる。
【００４１】
なお、図１、２に示した実施形態では、上部金具５０及び下部金具４０の軸穴５２ａ、５３ａ、４２ａ、４３ａに、ボルト６０の軸６０ａを挿通して回動自在に連結した場合を例示したが、上部金具５０の側板５２、５３に、軸穴５２ａ、５３ａの代りに、図７に示すバーリング加工による内方へ突出した円筒状の突起６５、６５を設けて、下部金具４０の軸穴４２ａ、４３ａにこの突起６５、６５を外側から挿入して下部金具４０と上部金具５０を回動自在に連結してもよい。
【００４２】
また、図８に示すエンボス加工による内方へ突出した半球状の突起６６、６６を設けて、下部金具４０の軸穴４２ａ、４３ａにこの突起６６、６６を外側から挿入して下部金具４０と上部金具５０を回動自在に連結してもよい。
【００４３】
また、図９に示す切起こし加工による内方へ突出した板状の突起６７、６７を設けて、下部金具４０の軸穴４２ａ、４３ａにこの突起６７、６７を外側から挿入して下部金具４０と上部金具５０を回動自在に連結してもよい。
【００４４】
なお、図７、図８、図９とは逆に、下部金具４０の方に軸穴４２ａ、４３ａの代りに外方へ突出した突起（図示せず）を設けて、上部金具５０の軸穴５２ａ、５３ａに下部金具４０に設けた突起を内側から挿入して下部金具４０と上部金具５０を回動自在に連結してもよい。
【００４５】
なお、この吊りボルト支持具３０を、リップ溝形鋼１には用いず、Ｌ形鋼７のように折曲げ縁部のないものにのみ用いる場合には、上部金具５０の前記切欠き５６、５７を設けなくてもよい。
【００４６】
図１０〜１２は本発明の他の実施形態を示している。
この実施形態の吊りボルト支持具３０では、上部金具５０の左端側５０ａが下部金具４０の左端の受け部４４、４５よりさらに左方へ突出して設けられ、また、上部金具５０の右端側は図１２に示すように横架材に取付けた状態で下部金具４０の脚板４２、４３より右方へ突出しないように短く、且つ、側板５２、５３の右端側は下方が狭くなるように斜めに傾斜した傾斜辺６８となっている。
【００４７】
このため、上部金具５０の重心は側板５２、５３の回転中心（軸６０ａ）より左側に位置することになるため、側板５３には、軸穴５３ａの下方において係止部５８を設け、下部金具４０の脚板４３に例えば切起こしによるストッパー用突起４６を設けて、上部金具５０の自重による反時計回りの回動は、このストッパー用突起４６に係止部５８が係止することによって阻止され、このため、挟持部５４、５５が受け部４４、４５の上端面４４ａ、４５ａより僅かに上方かあるいは僅かに下方に位置している。
【００４８】
このため、図１０の状態で吊りボルト６の端部を作業者が手で持って、吊りボルト６の上端部の吊りボルト支持具３０を、Ｌ形鋼７の水平板７ａの先端あるいは図１１に示すようにリップ溝形鋼１の折曲げ縁部４ａの上端面に上部金具５０の左下隅部５２ｃ、５３ｃを引っ掛けて、上部金具５０を軸６０ａを中心に時計回りに回動させて、上部金具５０の挟持部５４、５５と下部金具４０の受け部４４、４５の上端面４４ａ、４５ａの間を開き、Ｌ形鋼７の水平部７ａあるいはリップ溝形鋼１の折曲げ縁部４ａを奥まで挿入する。そして、以下、前記と同様に吊りボルト６を下方で回転させて、図１２に示すように上部金具５０を反時計回りに回動させることによって受け部４４、４５の上端部４４ａ、４５ａと挟持部５４、５５とで水平板７ａあるいは側板３ａを挟持させる。
【００４９】
図１３は本発明の他の実施形態の吊りボルト支持具７０を示している。
この吊りボルト支持具７０は外部金具８０と内部金具９０とによって構成されている。
【００５０】
外部金具８０は、平板８１と、この平板８１の両側から下方へほぼ垂直方向に延設された互いに平行な一対の脚板８２、８３を備えている。
【００５１】
前記脚板８２、８３の横方向の一端側において、且つ、脚板８２、８３の下端部において、横架材の板部の下面を上端面８４ａ、８５ａで受けるための一対の互いに平行な平板状の受け部８４、８５がそれぞれ横方向に延設されている。
【００５２】
内部金具９０は、外部金具８０の一対の脚板８２、８３の間の距離より小さい幅の平板９１と、この平板９１の両側から下方に前記外部金具８０の一対の脚板８２、８３の内側に位置するようにほぼ垂直方向に延設された一対の側板９２、９３とを備えている。
【００５３】
側板９２、９３の右端には、外方に向かってほぼ垂直方向に延設され、外部金具８０の脚板８２、８３の横方向の外側の端面８６に接触して右方へ外れないように係止し、且つ脚板８２、８３の前記端面８６に沿って内部金具９０が上下動するガイドのためのガイド片９４、９５が設けられている。
【００５４】
また、側板９２、９３の左側の下端部には挟持部９６、９７が設けられ、この挟持部９６、９７よりガイド片９４、９５側には、下方から切欠き９８、９９が設けられている。
内部金具９０の平板９１のガイド片９４、９５側の端部には、吊りボルト６の上端部を下方から螺着するためのネジ穴９１ａが設けられている。
【００５５】
次に、この実施形態の吊りボルト支持具７０の使用方法を説明する。
まず、図１４に示すように、吊りボルト６をその上端６ａが内部金具９０の平板９１のネジ穴９１ａから上方へ僅かに突出した状態に螺着し、吊りボルト６の上端６ａに外部金具８０の上板８１の下面が接触した状態にする。
【００５６】
この状態において、内部金具９０の挟持部９６、９７と外部金具８０の受け部８４、８５の上端面８４ａ、８５ａとの間に大きな間隔があいている。
【００５７】
この状態で吊りボルト６の下端部を作業者が手で持って、吊りボルト６の上端部の吊りボルト支持具７０を上方の横架材（例えばＬ形鋼７あるいは図１４に示すリップ溝形鋼１）の高さまで差し上げた後、吊りボルト支持具７０を左方へ動かして、Ｌ形鋼７の水平板７ａあるいは図１５に示すリップ溝形鋼１の下側の折曲げ縁部４ａを外部金具８０の受け部８４、８５の上端面８４ａ、８５ａと挟持部９６、９７の間に奥まで挿入する。
【００５８】
そして、この状態で吊りボルト６を下方で手であるいは電動回転工具などを用いて回転させて、吊りボルト６の上端６ａを前記ネジ穴９１ａにおいてさらに上方へ進出させる。吊りボルト６の上端６ａは前記したように外部金具８０の上板８１の下面に接触しているので、吊りボルト６の回転によって吊りボルト６の上端６ａの平板９１から上方への進出量が増加する量だけ、内部金具９０は外部金具８０に対して下降し、この結果、Ｌ形鋼７の場合にはその水平板７ａが外部金具８０の受け部８４、８５の上端面８４ａ、８５ａと挟持部９６、９７とで挟持され、図１５に示すようにリップ溝形鋼１の場合には、その下側の折曲げ縁部４ａが内部金具９０の前記切欠き９８、９９に進入すると共に、下側の側板３ａが外部金具８０の受け部８４、８５の上端面８４ａ、８５ａと挟持部９６、９７とで挟持される。
【００５９】
このようにして、横架材のはるか下方において吊りボルト６の上部を横架材に支持させることができる。
【００６０】
図１６〜２０はさらに本発明の他の実施形態を示している。
【００６１】
この実施形態の吊りボルト支持具１００は、帯板状の金属板をほぼコ字状に屈曲したものであって、ネジ穴１０１ａが設けられた平板１０１の一端から上方へ垂直方向に垂直板１０２が延設されている。この垂直板１０２の上下方向の長さは、図２０に示すように、開口部５を横向きにした状態でのリップ溝形鋼１の底板２の上下方向の幅より充分に大に設定されている。
【００６２】
前記垂直板１０２の上端から前記水平板１０１と同じ側に水平方向に押さえ板１０３が延設され、この押さえ板１０３の先端から下方へ垂直方向に係止片１０４が延設されている。
【００６３】
また、前記平板１０１の他端からは、上方へ垂直方向に前記係止片１０４と対向して掛止め板１０５が延設されていて、この掛止め板１０５の上端には内方へ下向きに屈曲された掛止め片１０５ａが設けられている。
【００６４】
前記押さえ板１０３の水平方向の長さ（即ち、垂直板１０２と係止片１０４間の距離）及び前記平板１０１の水平方向の長さ（即ち、垂直板１０２と掛止め板１０５間の距離）は、図２０に示すように、開口部５を横向きにした状態でのリップ溝形鋼１の側板３ｂ及び側板３ａの水平方向の長さより僅かに大に設定されている。
【００６５】
次に、この吊りボルト支持具１００の使用方法を説明する。
まず、吊りボルト６をその上端６ａが平板１０１のネジ穴１０１ａから上方へ僅かに突出した状態に螺着する。
【００６６】
この状態で吊りボルト６の下端部を作業者が手に持って、図１７に示すように、吊りボルト６の上端部の吊りボルト支持具１００を上方の横架材（リップ溝形鋼１）の高さまで斜め方向に差し上げた後、吊りボルト支持具１００の係止部１０４と掛止め片１０５ａの間にリップ溝形鋼１下部を奥まで挿入する。
【００６７】
そして、掛止め片１０５ａの下側に折曲げ縁部４ａをいれ、掛止め片１０５ａの下側で掛止め板１０５の内側に折曲げ縁部４ａを押し付けるようにして、図１８に示すように、吊りボルト６及び吊りボルト支持具１００を時計回りに回転させるように吊りボルト６の下端を左方向に移動させて、リップ溝形鋼１の底板２を垂直板１０２が外側から覆い、側板３ｂを押さえ板１０３が上側から覆うように被せて、図１９に示すようにリップ溝形鋼１の底板２が吊りボルト支持具１００の垂直板１０２の内面に密着し、吊りボルト支持具１００の係止部１０４の内面がリップ溝形鋼１の上側の折曲げ縁部４ｂの外面に接触し、掛止め板１０５の内面が下側の折曲げ縁部４ａの外面に接触した状態にする。
【００６８】
そして、この状態で吊りボルト６を下方で手であるいは電動回転工具などを用いて回転させて、吊りボルト６の上端６ａを前記ネジ穴１０１ａにおいてさらに上方へ進出させる。これによって吊りボルト６の上端６ａがリップ溝形鋼１の下側の側板３ａに接触し、さらに吊りボルト６の上端６ａがネジ穴１０１ａより上方へ進出するにつれて、吊りボルト６の上端６ａと吊りボルト支持具１００の押さえ板１０３との距離が次第に小になるので、図２０に示すように押さえ板１０３がリップ溝形鋼１の上側の側板３ｂに押圧されると共に、下側の側板３ａに吊りボルト６の上端６ａが押圧され挟持される。そして、係止部１０４が上側の折曲げ縁部４ｂに外側から脱落不能なように係止し、且つ掛止め板１０５が下側の折曲げ縁部４ａに外側から接触し、且つ掛止め片１０５ａが折曲げ縁部４ａの上端に係止した状態となる。
【００６９】
このようにして、横架材のはるか下方において吊りボルト６の上部を横架材に支持させることができる。
【００７０】
このように、吊りボルト６の上端６ａと前記押さえ板１０３とで挟持することによって固定する構造であるから、前記掛止め板１０５及び掛止め片１０５ａを省略してもよく、あるいは前記係止片１０４を省略してもよい。
【００７１】
なお、掛止め板１０５及び係止部１０４を設ければ、掛止め板１０５及び係止部１０４がそれぞれ下側の折曲げ縁部４ａ及び上側の折曲げ縁部４ｂに係止しているため、吊りボルト６の回転によって吊りボルト支持具１００がリップ溝形鋼１に対して回転しようとするのを防ぐことができ、また、脱落を確実に防ぐことができる。
【００７２】
【発明の効果】
以上説明したように、本発明の吊りボルト支持具は構成されているので、高所にある横架材の高さで直接ボルト締めなどをする必要がなく、横架材のはるか下方で作業できるから、脚立の上に立って作業する必要がなく、高所作業の危険を解消することができる。
【図面の簡単な説明】
【図１】本発明の一実施形態を示す分解斜視図
【図２】同実施形態の断面図
【図３】同実施形態の使用状態を示す断面図
【図４】同実施形態の使用状態を示す断面図
【図５】同実施形態の使用状態を示す断面図
【図６】同実施形態の使用状態を示す断面図
【図７】本発明の他の実施形態を示す断面図
【図８】本発明の他の実施形態を示す断面図
【図９】本発明の他の実施形態を示す断面図
【図１０】本発明のさらに他の実施形態を示す正面図
【図１１】同実施形態の使用状態を示す正面図
【図１２】同実施形態の使用状態を示す正面図
【図１３】本発明のさらに他の実施形態を示す分解斜視図
【図１４】同実施形態の使用状態を示す断面図
【図１５】同実施形態の使用状態を示す断面図
【図１６】本発明のさらに他の実施形態を示す斜視図
【図１７】同実施形態の使用状態を示す断面図
【図１８】同実施形態の使用状態を示す断面図
【図１９】同実施形態の使用状態を示す断面図
【図２０】同実施形態の使用状態を示す断面図
【図２１】従来の吊りボルト支持具の使用状態を示す斜視図
【図２２】図２１の従来の吊りボルト支持具の使用状態を示す断面図
【図２３】従来の他の吊りボルト支持具の使用状態を示す断面図
【符号の説明】
１リップ溝形鋼
３ａ側面板
４ａ折曲げ縁部
５開口部
６吊りボルト
６ａ上端
７Ｌ形鋼
７ａ水平板
３０吊りボルト支持具
４０下部金具
４１平板
４１ａネジ穴
４４、４５受け部
５０上部金具
５１上板
５４、５５挟持部
５６、５７切欠き
７０吊りボルト支持具
８０外部金具
８１上板
８４、８５受け部
９０内部金具
９１平板
９１ネジ穴
９４、９５ガイド片
９６、９７挟持部
９８、９９切欠き
１００吊りボルト支持具
１０１水平板
１０１ａネジ穴
１０２垂直板
１０３押さえ板
１０４係止板
１０５掛止め板
１０５ａ掛止め片[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a support for supporting a suspension bolt on a horizontal member.
[0002]
[Prior art and problems to be solved]
In buildings, factories, warehouses, station buildings, and other various structures, horizontal members (such as lip groove steel and L-shaped steel) are installed horizontally above the ceiling and other lighting fixtures. It is common practice to suspend and support various other devices using suspension bolts.
[0003]
21 and 22 show an example of a conventional suspension bolt support for supporting the upper end portion of the suspension bolt on the horizontal member (for example, the lip groove steel 1).
As shown in FIGS. 21 and 22, the lip groove steel 1 includes a bottom plate 2, two side plates 3 a and 3 b provided at right angles from both sides of the bottom plate 2, and tips of the side plates 3 a and 3 b. The bent edges 4a and 4b are bent inward at right angles to each other, and an opening 5 is formed between the ends of the bent edges 4a and 4b.
[0004]
The conventional suspension bolt support 10 shown in FIGS. 21 and 22 includes a bottom plate 12 provided with a screw hole 12a for screwing the tightening bolt 11 and a screw hole 12b for screwing the upper end of the suspension bolt 6. Two side plates provided with insertion grooves 13b which are bent at right angles from both sides of the bottom plate 12 and for inserting the lower bent edge 4a of the lip channel steel 1 upward from the lateral opening 13a. 13 and 13.
[0005]
Therefore, in order to support the suspension bolt 6 using this conventional suspension bolt support 10, the lower side of the lip groove steel 1 is inserted into the insertion grooves 13b, 13b from the openings 13a, 13a of the two side plates 13, 13. A lip groove is inserted between the front end 11a of the tightening bolt 11 and the lower ends of the contact portions 13c and 13c of the two side plates 13 by inserting the bent edge 4a and screwing the tightening bolt 11 screwed into the screw hole 12a. The suspension bolt support 10 is fixed to the lip groove shape steel 1 by strongly holding the lower side plate 3a of the section steel 1, and the suspension bolt 6 with the nut 7 screwed in the vicinity of the upper end is attached to the suspension bolt support 10. After screwing into the screw hole 12b of the bottom plate 12 and further screwing to advance the upper end of the suspension bolt 6 upward, the nut 7 was tightened from the lower side of the bottom plate 12 so that the suspension bolt 6 would not wobble.
[0006]
FIG. 23 shows another conventional suspension bolt support 20 for supporting the upper end portion of the suspension bolt 6 on the lip groove steel 1.
[0007]
The suspension bolt support 20 is composed of a support plate 22 with a clamping piece 21 folded back at the tip, and a mounting portion 23 bent in a substantially triangular shape to which the upper end of the suspension bolt 6 is attached.
[0008]
The clamping piece 21 has a spring property, and the lower end portion 21 a is open in a direction away from the support plate 22.
The attachment portion 23 includes a bottom plate 24 having a screw hole 24 a for screwing the upper end of the suspension bolt 6, a vertical plate 25 bent vertically from one end of the bottom plate 24, and a vertical from the other end of the bottom plate 24. The vertical plate 25 includes an inclined plate 26 that is bent obliquely toward the plate 25 and has a long hole 26a, and an overlapping plate 27 that extends from the upper end of the inclined plate 26 in a direction parallel to the vertical plate 25. Are attached to the lower portion of the support plate 22 in a state where the overlap plate 27 is overlapped.
[0009]
Therefore, in order to support the upper end portion of the suspension bolt 6 using the conventional suspension bolt support tool 20, the upper end of the bent edge portion 4a on the lower side of the lip groove steel 1 is connected to the upper portion of the support plate 22 and the clamping piece. The upper end of the support plate 22 is struck downward with a hammer or the like, and the upper end of the bent edge 4a is struck between the upper end of the support plate 22 and the holding piece 21 and fixed. Then, the suspension bolt 6 in which the nut 28 is screwed in the vicinity of the upper end is screwed into the screw hole 24a of the bottom plate 24 of the suspension bolt support 20, and further screwed to advance the upper end portion of the suspension bolt 6 above the elongated hole 26a. Then, the nut 28 was tightened from the lower side of the bottom plate 24 so that the suspension bolt 6 does not wobble.
[0010]
However, in such conventional methods, the suspension bolts 10 and 20 and the suspension bolt 6 are fixed using a stepladder or the like at the height of the horizontal member (lip groove steel 1) at a high place. It was very dangerous.
[0011]
21 and 22 requires three operations of tightening the tightening bolt 11, screwing the suspension bolt 6 into the screw hole 12b, and tightening the nut 7, which is very complicated. It was bad and took a lot of time.
[0012]
In addition, the suspension bolt support 20 of FIG. 23 requires three operations of hammering with a hammer, screwing the suspension bolt 6 into the screw hole 24a, and tightening the nut 28, which is very complicated and poor in workability. It took a lot of time. Further, the hammering or the like is very difficult because it must be performed in the narrow opening 5 between the upper and lower bent edges 4b and 4a of the lip groove steel 1.
[0013]
An object of the present invention is to provide a suspension bolt support that solves such problems, eliminates the need for work at a high place, and improves workability.
[0014]
[Means for Solving the Problems]
In order to achieve the above object, the suspension bolt support according to claim 1 of the present invention comprises:
A lower fitting including a flat plate provided with screw holes, a pair of leg plates extending downward from both sides of the flat plate, and a receiving portion extending laterally from the leg plate;
The upper plate comprises an upper metal fitting provided with a pair of side plates extending downward from both sides of the upper plate and having a sandwiching portion at the lower end on the receiving portion side,
The pair of leg plates of the lower metal fitting at a position above the pair of leg plates of the lower metal fitting and on the side of the receiving part from the screw hole of the flat plate with the upper metal fitting covered from the outside on the upper part of the lower metal fitting. And the pair of side plates of the upper metal fitting are rotatably connected,
The upper end of the suspension bolt is screwed into the screw hole of the lower bracket from below and advanced upward, and the upper surface of the upper bracket is pressed against the lower surface of the upper bracket by the upper end of the suspension bolt. By rotating the holding portion in a direction approaching the receiving portion of the lower metal fitting, the plate portion of the horizontal member is held between the holding portion of the upper metal fitting and the receiving portion of the lower metal fitting. Yes.
[0015]
With this configuration, the operator holds the lower end of the suspension bolt in his hand while the upper end of the suspension bolt is screwed into the screw hole of the lower bracket from the lower side and slightly advanced upward. The plate portion of the horizontal member is inserted between the receiving portion of the lower metal fitting and the holding portion of the upper metal fitting, and the upper end portion screwed into the screw hole by twisting the holding bolt held by the hand is further upward Then, the upper plate of the upper bracket is pressed by the upper end of the suspension bolt to rotate the upper bracket, and the plate portion of the horizontal member may be clamped between the receiving portion and the clamping portion. Thus, the upper end of the suspension bolt can be supported on the horizontal member by an operation from a far lower side of the horizontal member.
[0016]
The suspension bolt support of claim 2 of the present invention is
A lower fitting including a flat plate provided with screw holes, a pair of leg plates extending downward from both sides of the flat plate, and a receiving portion extending laterally from the leg plate;
A pair having an upper plate and a lower portion extending from both sides of the upper plate, having a holding portion at the lower end on the receiving portion side, and having a notch provided upward from the lower end closer to the center than the holding portion. And the upper bracket with the side plate,
The pair of leg plates of the lower metal fitting at a position above the pair of leg plates of the lower metal fitting and on the side of the receiving part from the screw hole of the flat plate with the upper metal fitting covered from the outside on the upper part of the lower metal fitting. And the pair of side plates of the upper metal fitting are rotatably connected,
The upper end of the suspension bolt is screwed into the screw hole of the lower bracket from below and advanced upward, and the upper surface of the upper bracket is pressed against the lower surface of the upper bracket by the upper end of the suspension bolt. By turning the holding part in a direction approaching the receiving part of the lower metal part, the bent edge of the horizontal member is entered into the notch of the upper metal part, and the holding part of the upper metal part is The plate portion of the horizontal member is sandwiched between the receiving portion of the lower metal fitting.
[0017]
With this configuration, the operator holds the lower end of the suspension bolt in his hand while the upper end of the suspension bolt is screwed into the screw hole of the lower bracket from the lower side and slightly advanced upward. The plate portion of the horizontal member is inserted between the receiving portion of the lower metal fitting and the holding portion of the upper metal fitting, and the upper end portion screwed into the screw hole by twisting the holding bolt held by the hand is further upward As a result, the upper plate of the upper metal fitting is pushed by the upper end of the suspension bolt to rotate the upper metal fitting, and the bent edge of the horizontal member is entered into the notch of the upper metal fitting, Since the plate portion of the horizontal member only needs to be held between the receiving portion and the holding portion, the upper end portion of the suspension bolt can be supported on the horizontal member by an operation from a far lower side of the horizontal member.
[0018]
Moreover, the suspension bolt support of Claim 3 of this invention is
An external fitting comprising an upper plate, a pair of leg plates extending downward from both sides of the upper plate, and a receiving portion extending laterally from the leg plate;
It consists of a flat plate provided with screw holes, and an internal metal fitting provided with a pair of side plates extending downward from both sides of the flat plate and having a clamping part at the lower end on the receiving part side,
With the inner metal fitting being covered from the outside to the inner metal fitting, the upper end portion of the suspension bolt is screwed into the screw hole of the inner metal fitting from the lower side to advance upward, and the upper end of the outer metal fitting is By pressing the lower surface of the upper plate, the inner metal member is lowered with respect to the outer metal member, so that the plate portion of the horizontal member is held between the holding portion of the inner metal member and the receiving portion of the outer metal member. I am doing so.
[0019]
With this configuration, the operator holds the lower part of the suspension bolt in his hand while the upper end of the suspension bolt is screwed into the screw hole of the inner metal fitting from below and slightly lifted upward. The plate part of the horizontal member is inserted between the receiving part of the external metal fitting and the holding part of the internal metal fitting, and the upper end part screwed into the screw hole by twisting the holding bolt held by the hand is further upward The upper metal plate is pushed down by the upper end of the suspension bolt, thereby lowering the inner metal fitting and sandwiching the plate portion of the horizontal member between the receiving portion and the holding portion. Thus, the upper end of the suspension bolt can be supported on the horizontal member by an operation from a far lower side of the horizontal member.
[0020]
In addition, the suspension bolt support of claim 4 of the present invention is
An external fitting comprising an upper plate, a pair of leg plates extending downward from both sides of the upper plate, and a receiving portion extending laterally from the leg plate;
A flat plate provided with screw holes, a cut extending from both sides of the flat plate, having a holding portion at the lower end on the receiving portion side, and provided from the lower end to the upper side closer to the center than the holding portion Consisting of an internal metal fitting with a pair of side plates having notches,
With the inner metal fitting being covered from the outside to the inner metal fitting, the upper end portion of the suspension bolt is screwed into the screw hole of the inner metal fitting from the lower side to advance upward, and the upper end of the outer metal fitting is The inner metal fitting is lowered with respect to the outer metal fitting by pressing the lower surface of the upper plate, thereby causing the bent edge of the horizontal member to enter the notch of the inner metal fitting, and the inner metal fitting The plate portion of the horizontal member is held between the holding portion and the receiving portion of the external metal fitting.
[0021]
With this configuration, the operator holds the lower part of the suspension bolt in his hand while the upper end of the suspension bolt is screwed into the screw hole of the inner metal fitting from below and slightly lifted upward. The plate part of the horizontal member is inserted between the receiving part of the external metal fitting and the holding part of the internal metal fitting, and the upper end part screwed into the screw hole by twisting the holding bolt held by the hand is further upward And lowering the internal metal fitting by pressing the upper plate of the external metal fitting with the upper end of the suspension bolt, thereby causing the bent edge of the horizontal member to enter the notch of the internal metal fitting, Since the plate portion of the horizontal member only needs to be held between the receiving portion and the holding portion, the upper end portion of the suspension bolt can be supported on the horizontal member by an operation from a far lower side of the horizontal member.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1-6 has shown one Embodiment of the suspension bolt support of this invention.
[0025]
The suspension bolt support 30 is composed of a lower metal fitting 40 and an upper metal fitting 50.
The lower metal fitting 40 includes a flat plate 41 and a pair of parallel leg plates 42 and 43 that extend downward from both sides of the flat plate 41 in a substantially vertical direction.
[0026]
The pair of leg plates 42 and 43 are respectively provided with shaft holes (connecting portions) 42a and 43a for connecting the upper metal fitting 50 in the vicinity of the flat plate 41 and at one end side in the lateral direction.
[0027]
For receiving the lower surface of the plate portion of the horizontal member at the upper end surfaces 44a and 45a at one end side (the shaft holes 42a and 43a side) of the leg plates 42 and 43 and at the lower end portions of the leg plates 42 and 43. A pair of parallel plate-like receiving portions 44 and 45 extend in the lateral direction.
The flat plate 41 is provided with a screw hole 41a for screwing the upper end portion of the suspension bolt 6 at a position opposite to the receiving portions 44, 45 with respect to the shaft holes 42a, 43a of the leg plates 42, 43. Yes.
[0028]
The upper metal fitting 50 is a pair of parallel parallel to each other that extends in a substantially vertical direction so as to be positioned outside the pair of leg plates 42 and 43 of the lower metal fitting 40 downward from both sides of the upper plate 51. Side plates 52 and 53 are provided. Near the lower ends of the side plates 52 and 53, and in the intermediate portion in the horizontal direction, shaft holes (connecting portions) 52a and 53a for connecting the lower metal fitting 40 are provided.
[0029]
Then, the shaft 60a of the bolt 60 is inserted into the shaft holes 52a, 53a, 42a, 43a of the upper metal fitting 50 and the lower metal fitting 40 in a state where the upper metal fitting 50 is put on the upper part of the lower metal fitting 40 from the outside. A nut 61 is screwed to the tip of the bolt 60, and the lateral movement of the side plates 52, 53 of the upper metal fitting 50 is restricted by the head 60 b of the bolt 60 and the nut 61. In this way, the upper metal fitting 50 is connected to the lower metal fitting 40 so as to be rotatable about the shaft 60a.
[0030]
The height of the side plates 52 and 53 of the upper metal fitting 50 in the vertical direction is such that when the upper metal fitting 50 is in a horizontal state, the holding portions 54 at the lower ends of the receiving portions 44 and 45 of the lower metal fitting 40 of the side plates 52 and 53 are disposed. , 55 and the upper end surfaces 44a, 45a of the receiving portions 44, 45 of the lower metal fitting 40 have a plate portion (the side plate 3a of the lip groove steel 1 or the L shown in FIGS. It is set to be larger than the thickness of the horizontal plate 7a) of the section steel 7.
[0031]
As shown in FIGS. 4 and 6, the sandwiching portions 54, 55 are the plate portions of the horizontal member (the side plate 3 a of the lip groove steel 1 or the L-shape steel 7 in a state where the upper metal fitting 50 is rotated counterclockwise. The side plate 3a of the lip groove steel 1 or the horizontal plate 7a of the L-shaped steel 7 is attached to the upper end surfaces 44a, 45a of the receiving portions 44, 45 of the lower metal fitting 40 so that the upper surface of the horizontal plate 7a) can be easily contacted. It is desirable to make it tapered so that it can be easily inserted.
[0032]
Further, the side plates 52 and 53 of the upper metal fitting 50 are cut to receive the lower bent edge 4a of the lip groove steel 1 between the holding portions 54 and 55 and the shaft holes 52a and 53a. Notches 56 and 57 are provided. The entrance side (lower side) of the notches 56 and 57 has a shape in which the lower side gradually expands so as not to collide with the bent edge portion 4a when the upper metal fitting 50 is rotated.
[0033]
3 and 5 in a state where the upper metal fitting 50 is connected to the lower metal fitting 40 when the shaft holes 52a, 53a of the upper metal fitting 50 are positioned closer to the holding portions 54, 55 than the center of gravity of the upper metal fitting 50. As shown in FIG. 4, the upper metal fitting 50 is rotated clockwise by its own weight, and the gap between the holding portions 54 and 55 and the upper end surfaces 44a and 45a of the receiving portions 44 and 45 is increased, so that the side plate 3a of the lip groove steel 1 or It becomes easy to insert the horizontal plate 7a of the L-shaped steel 7 into the gap between the sandwiching portions 54, 55 and the upper end surfaces 44a, 45a of the receiving portions 44, 45.
[0034]
Next, how to use the suspension bolt support 30 will be described.
First, as shown in FIG. 3 or FIG. 5, the suspension bolt 6 is screwed so that the upper end 6 a slightly protrudes upward from the screw hole 41 a of the flat plate 41 of the lower fitting 40.
[0035]
Then, the operator holds the lower end portion of the suspension bolt 6 by hand, and the suspension bolt support 30 at the upper end portion of the suspension bolt 6 is moved to the upper horizontal member, for example, the height of the L-shaped steel 7 as shown in FIG. After the holding, the suspension bolt support 30 is moved to the left, and the plate portion of the horizontal member (the horizontal plate 7a of the L-shaped steel 7) is moved to the upper end surfaces 44a and 45a of the receiving portions 44 and 45 of the lower metal fitting 40. Insert between the clamping parts 54 and 55 of the upper metal fitting 50 to the back.
[0036]
In this state, the suspension bolt 6 is rotated from below by hand or by using an electric rotary tool or the like, and the upper end 6a of the suspension bolt 6 is advanced further upward in the screw hole 41a as shown in FIG. As a result, the upper plate 51 of the upper metal fitting 50 is pressed by the upper end 6a of the suspension bolt 6, and the upper metal fitting 50 is rotated counterclockwise about the shaft 60a, whereby the upper end portions 44a, 45a of the receiving portions 44, 45 are rotated. By firmly holding the plate portion of the horizontal member (the horizontal plate 7a of the L-shaped steel 7) between the holding portions 54 and 55, the suspension bolt support 30 and the suspension bolt 6 can be firmly fixed to the horizontal plate 7a.
[0037]
Thus, the upper part of the suspension bolt 6 can be supported on the horizontal member (L-shaped steel 7) by the operation from the far lower side of the horizontal member (L-shaped steel 7).
[0038]
As shown in FIGS. 5 and 6, when the horizontal member is the lip groove steel 1, the operator holds the lower end portion of the suspension bolt 6 by hand, and the upper portion of the suspension bolt support 30 at the upper end. The left end side of the metal fitting 50 is inserted into the opening 5 of the lip groove steel 1, and the lower bent edge 4 a is connected to the upper end surfaces 44 a and 45 a of the receiving parts 44 and 45 of the lower metal fitting 40 and the upper metal fitting 50. Insert between the holding parts 54 and 55 to the back.
[0039]
Then, the suspension bolt 6 is rotated from below by hand or using an electric rotary tool or the like, and the upper end 6a of the suspension bolt 6 is further advanced upward in the screw hole 41a, whereby the upper plate 51 of the upper metal fitting 50 is suspended. The upper end 50a of the bolt 6 is pressed to rotate the upper fitting 50 counterclockwise about the shaft 60a, so that the bent edge 4a enters the notches 56 and 57 of the side plates 52 and 53 of the upper fitting 50. At the same time, the plate portion of the horizontal member (the lower side plate 3a of the lip groove steel 1) is held between the upper end portions 44a and 45a of the receiving portions 44 and 45 and the holding portions 54 and 55.
[0040]
In this way, the upper part of the suspension bolt 6 can be supported by the horizontal member (lip grooved steel 1) by an operation from far below the horizontal member (lip grooved steel 1).
[0041]
In the embodiment shown in FIGS. 1 and 2, the case where the shaft 60 a of the bolt 60 is inserted into the shaft holes 52 a, 53 a, 42 a, 43 a of the upper metal fitting 50 and the lower metal fitting 40 and is rotatably connected is illustrated. However, instead of the shaft holes 52a and 53a, cylindrical projections 65 and 65 projecting inward by burring shown in FIG. The protrusions 65 and 65 may be inserted into the holes 42a and 43a from the outside, and the lower metal fitting 40 and the upper metal fitting 50 may be rotatably connected.
[0042]
Further, hemispherical protrusions 66, 66 projecting inward by embossing shown in FIG. 8 are provided, and the protrusions 66, 66 are inserted into the shaft holes 42a, 43a of the lower metal fitting 40 from the outside to form the lower metal fitting 40. You may connect the upper metal fitting 50 so that rotation is possible.
[0043]
Further, plate-like projections 67 and 67 projecting inward by cutting and raising processing shown in FIG. 9 are provided, and the projections 67 and 67 are inserted into the shaft holes 42a and 43a of the lower fitting 40 from the outside, so that the lower fitting 40 And the upper metal fitting 50 may be rotatably connected.
[0044]
7, 8, and 9, a projection (not shown) protruding outward is provided on the lower metal fitting 40 instead of the shaft holes 42 a and 43 a, so that the shaft hole of the upper metal fitting 50 is provided. The protrusions provided on the lower metal fitting 40 may be inserted into the 52a and 53a from the inside, and the lower metal fitting 40 and the upper metal fitting 50 may be rotatably connected.
[0045]
In addition, when this suspension bolt support tool 30 is not used for the lip groove section steel 1 but only for the one having no bent edge portion such as the L-section steel 7, the notches 56 of the upper metal fitting 50, 57 may not be provided.
[0046]
10-12 show other embodiments of the present invention.
In the suspension bolt support 30 of this embodiment, the left end side 50a of the upper metal fitting 50 is provided so as to protrude further leftward from the receiving portions 44 and 45 at the left end of the lower metal fitting 40, and the right end side of the upper metal fitting 50 is illustrated in FIG. 12, it is short so that it does not protrude rightward from the leg plates 42, 43 of the lower metal fitting 40 when attached to the horizontal member, and the right end sides of the side plates 52, 53 are inclined obliquely so that the lower side is narrower. The inclined side 68 is formed.
[0047]
For this reason, the center of gravity of the upper metal fitting 50 is located on the left side of the center of rotation (shaft 60a) of the side plates 52, 53. Therefore, the side plate 53 is provided with a locking portion 58 below the shaft hole 53a. For example, a stopper projection 46 by cutting and raising is provided on the leg plate 43 of 40, and the counterclockwise rotation due to the weight of the upper metal fitting 50 is prevented by the locking portion 58 being locked to the stopper projection 46, For this reason, the clamping parts 54 and 55 are located slightly above or slightly below the upper end surfaces 44 a and 45 a of the receiving parts 44 and 45.
[0048]
For this reason, the operator holds the end of the suspension bolt 6 with his / her hand in the state of FIG. 10, and the suspension bolt support 30 at the upper end of the suspension bolt 6 is attached to the tip of the horizontal plate 7 a of the L-shaped steel 7 or FIG. The lower left corners 52c and 53c of the upper metal fitting 50 are hooked on the upper end surface of the bent edge 4a of the lip groove steel 1, and the upper metal fitting 50 is rotated clockwise around the shaft 60a. Opening between the holding portions 54 and 55 of the upper metal fitting 50 and the upper end surfaces 44a and 45a of the receiving portions 44 and 45 of the lower metal fitting 40, the bent portion 4a of the horizontal portion 7a of the L-shaped steel 7 or the lip groove steel 1. Insert all the way. Thereafter, the suspension bolt 6 is rotated downward in the same manner as described above, and the upper metal fitting 50 is rotated counterclockwise as shown in FIG. 12, so that the upper end portions 44a and 45a of the receiving portions 44 and 45 are clamped. The horizontal plate 7a or the side plate 3a is held between the portions 54 and 55.
[0049]
FIG. 13 shows a suspension bolt support 70 according to another embodiment of the present invention.
The suspension bolt support 70 is composed of an external metal fitting 80 and an internal metal fitting 90.
[0050]
The external metal fitting 80 includes a flat plate 81 and a pair of parallel leg plates 82 and 83 extending in a substantially vertical direction downward from both sides of the flat plate 81.
[0051]
A pair of parallel plate-like plates for receiving the lower surface of the plate portion of the horizontal member at the upper end surfaces 84a, 85a at one end side in the lateral direction of the leg plates 82, 83 and at the lower end portions of the leg plates 82, 83. Receiving portions 84 and 85 are respectively extended in the lateral direction.
[0052]
The internal metal fitting 90 is positioned inside the pair of leg plates 82 and 83 of the external metal fitting 80 downward from both sides of the flat plate 91 with a width smaller than the distance between the pair of leg plates 82 and 83 of the external metal fitting 80. Thus, a pair of side plates 92 and 93 extending in a substantially vertical direction is provided.
[0053]
At the right ends of the side plates 92 and 93, it extends in a substantially vertical direction toward the outside, and engages with the laterally outer end surfaces 86 of the leg plates 82 and 83 of the external metal fitting 80 so as not to come off to the right. Guide pieces 94 and 95 are provided for stopping and guiding the inner metal fitting 90 up and down along the end surfaces 86 of the leg plates 82 and 83.
[0054]
Further, sandwiching portions 96 and 97 are provided at the lower left end portions of the side plates 92 and 93, and notches 98 and 99 are provided from the lower side to the guide pieces 94 and 95 from the sandwiching portions 96 and 97. .
A screw hole 91a for screwing the upper end of the suspension bolt 6 from below is provided at the end of the inner metal plate 90 on the guide piece 94, 95 side of the flat plate 91.
[0055]
Next, the usage method of the suspension bolt support tool 70 of this embodiment is demonstrated.
First, as shown in FIG. 14, the suspension bolt 6 is screwed so that the upper end 6 a slightly protrudes upward from the screw hole 91 a of the flat plate 91 of the internal metal fitting 90, and the external metal fitting 80 is attached to the upper end 6 a of the suspension bolt 6. The lower surface of the upper plate 81 is in contact.
[0056]
In this state, there is a large gap between the clamping portions 96 and 97 of the internal metal fitting 90 and the upper end surfaces 84a and 85a of the receiving portions 84 and 85 of the external metal fitting 80.
[0057]
In this state, the operator holds the lower end of the suspension bolt 6 by hand, and the suspension bolt support 70 at the upper end of the suspension bolt 6 is placed on the upper horizontal member (for example, the L-shaped steel 7 or the lip groove shape shown in FIG. 14). After raising to the height of steel 1), the suspension bolt support 70 is moved leftward so that the horizontal plate 7a of the L-shaped steel 7 or the lower bent edge 4a of the lip groove steel 1 shown in FIG. It inserts between the upper end surfaces 84a and 85a of the receiving parts 84 and 85 of the external metal fitting 80 and the clamping parts 96 and 97 to the back.
[0058]
In this state, the suspension bolt 6 is rotated downward by hand or using an electric rotary tool or the like, and the upper end 6a of the suspension bolt 6 is advanced further upward in the screw hole 91a. Since the upper end 6a of the suspension bolt 6 is in contact with the lower surface of the upper plate 81 of the external metal fitting 80 as described above, the amount of advancement of the upper end 6a of the suspension bolt 6 upward from the flat plate 91 increases as the suspension bolt 6 rotates. As a result, in the case of the L-shaped steel 7, the horizontal plate 7 a is sandwiched between the upper end surfaces 84 a and 85 a of the receiving portions 84 and 85 of the external bracket 80. In the case of the lip groove steel 1 as shown in FIG. 15, the lower bent edge 4a enters the notches 98 and 99 of the internal metal fitting 90, as shown in FIG. The lower side plate 3 a is sandwiched between the upper end surfaces 84 a and 85 a of the receiving portions 84 and 85 of the external metal fitting 80 and the sandwiching portions 96 and 97.
[0059]
In this way, the upper part of the suspension bolt 6 can be supported by the horizontal member far below the horizontal member.
[0060]
16 to 20 show still another embodiment of the present invention.
[0061]
The suspension bolt support 100 according to this embodiment is obtained by bending a belt-like metal plate into a substantially U-shape, and is vertically upward from one end of the flat plate 101 provided with screw holes 101a in the vertical direction. Is extended. As shown in FIG. 20, the vertical length of the vertical plate 102 is set sufficiently larger than the vertical width of the bottom plate 2 of the lip groove steel 1 with the opening 5 in the horizontal direction. Yes.
[0062]
A pressing plate 103 extends in the horizontal direction from the upper end of the vertical plate 102 on the same side as the horizontal plate 101, and a locking piece 104 extends in the vertical direction downward from the tip of the pressing plate 103.
[0063]
A latching plate 105 extends from the other end of the flat plate 101 in the vertical direction so as to face the latching piece 104, and the upper end of the latching plate 105 faces inwardly downward. A bent latching piece 105a is provided.
[0064]
The horizontal length of the pressing plate 103 (that is, the distance between the vertical plate 102 and the locking piece 104) and the horizontal length of the flat plate 101 (that is, the distance between the vertical plate 102 and the latching plate 105). As shown in FIG. 20, the side plate 3b of the lip groove steel 1 and the side plate 3a are set to be slightly larger than the horizontal length in the state where the opening 5 is turned sideways.
[0065]
Next, the usage method of this suspension bolt support tool 100 is demonstrated.
First, the suspension bolt 6 is screwed so that its upper end 6 a slightly protrudes upward from the screw hole 101 a of the flat plate 101.
[0066]
In this state, the operator holds the lower end portion of the suspension bolt 6 in his / her hand, and as shown in FIG. 17, the suspension bolt support 100 at the upper end portion of the suspension bolt 6 is placed on the upper horizontal member (lip channel steel 1). And then the lower part of the lip groove steel 1 is inserted between the locking portion 104 of the suspension bolt support 100 and the hooking piece 105a.
[0067]
Then, the bent edge 4a is inserted below the latch piece 105a, and the bent edge 4a is pressed to the inside of the latch plate 105 below the latch piece 105a, as shown in FIG. The bottom plate 2 of the lip groove steel 1 is covered from the outside by moving the lower end of the suspension bolt 6 to the left so that the suspension bolt 6 and the suspension bolt support 100 are rotated clockwise, and the side plate 3b As shown in FIG. 19, the bottom plate 2 of the lip groove steel 1 is in close contact with the inner surface of the vertical plate 102 of the suspension bolt support 100, so that the suspension bolt support 100 is engaged. The inner surface of the stopper 104 is in contact with the outer surface of the upper bent edge 4b of the lip channel steel 1, and the inner surface of the latch plate 105 is in contact with the outer surface of the lower bent edge 4a.
[0068]
Then, in this state, the suspension bolt 6 is rotated downward by hand or using an electric rotary tool or the like, and the upper end 6a of the suspension bolt 6 is advanced further upward in the screw hole 101a. As a result, the upper end 6a of the suspension bolt 6 comes into contact with the lower side plate 3a of the lip channel steel 1, and the upper end 6a of the suspension bolt 6 extends upward from the screw hole 101a. Since the distance between the bolt support 100 and the pressing plate 103 is gradually reduced, the pressing plate 103 is pressed against the upper side plate 3b of the lip groove steel 1 as shown in FIG. The upper end 6a of the suspension bolt 6 is pressed and clamped. And the latching | locking part 104 latches to the upper bending edge 4b so that it cannot fall from the outside, and the latching plate 105 contacts the lower folding edge 4a from the outside, and the latching piece 105a is in a state of being locked to the upper end of the bent edge 4a.
[0069]
In this way, the upper part of the suspension bolt 6 can be supported by the horizontal member far below the horizontal member.
[0070]
Thus, since it is the structure fixed by pinching with the upper end 6a of the suspension bolt 6 and the said holding | suppressing board 103, the said latching plate 105 and the latching piece 105a may be abbreviate | omitted, or the said locking piece 104 may be omitted.
[0071]
If the latch plate 105 and the latching portion 104 are provided, the latch plate 105 and the latch portion 104 are latched to the lower bent edge 4a and the upper bent edge 4b, respectively. The suspension bolt 6 can be prevented from rotating with respect to the lip groove steel 1 by the rotation of the suspension bolt 6, and can be reliably prevented from falling off.
[0072]
【The invention's effect】
As described above, since the suspension bolt support of the present invention is configured, it is not necessary to perform bolting directly at the height of the horizontal member at a high place, and the work can be performed far below the horizontal member. Therefore, it is not necessary to work while standing on a stepladder, and the danger of working at heights can be eliminated.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an embodiment of the present invention.
FIG. 2 is a sectional view of the same embodiment
FIG. 3 is a cross-sectional view showing a use state of the embodiment
FIG. 4 is a cross-sectional view showing a usage state of the embodiment
FIG. 5 is a sectional view showing a usage state of the embodiment;
FIG. 6 is a sectional view showing a usage state of the embodiment;
FIG. 7 is a sectional view showing another embodiment of the present invention.
FIG. 8 is a sectional view showing another embodiment of the present invention.
FIG. 9 is a sectional view showing another embodiment of the present invention.
FIG. 10 is a front view showing still another embodiment of the present invention.
FIG. 11 is a front view showing a usage state of the embodiment;
FIG. 12 is a front view showing a usage state of the embodiment;
FIG. 13 is an exploded perspective view showing still another embodiment of the present invention.
FIG. 14 is a sectional view showing a usage state of the embodiment;
FIG. 15 is a sectional view showing a usage state of the embodiment;
FIG. 16 is a perspective view showing still another embodiment of the present invention.
FIG. 17 is a sectional view showing the usage state of the embodiment;
FIG. 18 is a sectional view showing the usage state of the embodiment;
FIG. 19 is a sectional view showing the usage state of the embodiment;
FIG. 20 is a sectional view showing the usage state of the embodiment;
FIG. 21 is a perspective view showing a usage state of a conventional suspension bolt support tool.
22 is a sectional view showing a usage state of the conventional suspension bolt support of FIG.
FIG. 23 is a cross-sectional view showing a usage state of another conventional suspension bolt support
[Explanation of symbols]
1 Lip channel steel
3a Side plate
4a Bending edge
5 openings
6 Hanging bolt
6a top
7 L-shape steel
7a horizontal plate
30 Suspension bolt support
40 Lower bracket
41 flat plate
41a Screw hole
44, 45 Receiver
50 Upper bracket
51 Upper plate
54, 55 Nipping part
56, 57 Notch
70 Suspension bolt support
80 External bracket
81 Upper plate
84, 85 receptacle
90 Internal metal fittings
91 flat plate
91 Screw hole
94, 95 Guide piece
96, 97 clamping part
98, 99 Notch
100 Suspension bolt support
101 horizontal plate
101a Screw hole
102 Vertical plate
103 holding plate
104 Locking plate
105 Suspension plate
105a Latching piece

Claims

A lower fitting including a flat plate provided with screw holes, a pair of leg plates extending downward from both sides of the flat plate, and a receiving portion extending laterally from the leg plate;
The upper plate comprises an upper metal fitting provided with a pair of side plates extending downward from both sides of the upper plate and having a sandwiching portion at the lower end on the receiving portion side,
The pair of leg plates of the lower metal fitting at a position above the pair of leg plates of the lower metal fitting and on the side of the receiving part from the screw hole of the flat plate with the upper metal fitting covered from the outside on the upper part of the lower metal fitting. And the pair of side plates of the upper metal fitting are rotatably connected,
The upper end of the suspension bolt is screwed into the screw hole of the lower bracket from below and advanced upward, and the upper surface of the upper bracket is pressed against the lower surface of the upper bracket by the upper end of the suspension bolt. By rotating the holding portion in a direction approaching the receiving portion of the lower metal fitting, the plate portion of the horizontal member is held between the holding portion of the upper metal fitting and the receiving portion of the lower metal fitting. A suspension bolt support characterized by that.

A lower fitting including a flat plate provided with screw holes, a pair of leg plates extending downward from both sides of the flat plate, and a receiving portion extending laterally from the leg plate;
A pair having an upper plate and a lower portion extending from both sides of the upper plate, having a holding portion at the lower end on the receiving portion side, and having a notch provided upward from the lower end closer to the center than the holding portion. And the upper bracket with the side plate,
The pair of leg plates of the lower metal fitting at a position above the pair of leg plates of the lower metal fitting and on the side of the receiving part from the screw hole of the flat plate with the upper metal fitting covered from the outside on the upper part of the lower metal fitting. And the pair of side plates of the upper metal fitting are rotatably connected,
The upper end of the suspension bolt is screwed into the screw hole of the lower bracket from below and advanced upward, and the upper surface of the upper bracket is pressed against the lower surface of the upper bracket by the upper end of the suspension bolt. By turning the holding part in a direction approaching the receiving part of the lower metal part, the bent edge of the horizontal member is entered into the notch of the upper metal part, and the holding part of the upper metal part is A suspension bolt supporter characterized in that a plate portion of a horizontal member is sandwiched between the receiving portion of the lower metal fitting.

An external fitting comprising an upper plate, a pair of leg plates extending downward from both sides of the upper plate, and a receiving portion extending laterally from the leg plate;
It consists of a flat plate provided with screw holes, and an internal metal fitting provided with a pair of side plates extending downward from both sides of the flat plate and having a clamping part at the lower end on the receiving part side,
With the inner metal fitting being covered from the outside to the inner metal fitting, the upper end portion of the suspension bolt is screwed into the screw hole of the inner metal fitting from the lower side to advance upward, and the upper end of the outer metal fitting is By pressing the lower surface of the upper plate, the inner metal member is lowered with respect to the outer metal member, so that the plate portion of the horizontal member is held between the holding portion of the inner metal member and the receiving portion of the outer metal member. A suspension bolt support characterized by being made as described above.

An external fitting comprising an upper plate, a pair of leg plates extending downward from both sides of the upper plate, and a receiving portion extending laterally from the leg plate;
A flat plate provided with screw holes, a cut extending from both sides of the flat plate, having a holding portion at the lower end on the receiving portion side, and provided from the lower end to the upper side closer to the center than the holding portion Consisting of an internal metal fitting with a pair of side plates having notches,
With the inner metal fitting being covered from the outside to the inner metal fitting, the upper end portion of the suspension bolt is screwed into the screw hole of the inner metal fitting from the lower side to advance upward, and the upper end of the outer metal fitting is The inner metal fitting is lowered with respect to the outer metal fitting by pressing the lower surface of the upper plate, thereby causing the bent edge of the horizontal member to enter the notch of the inner metal fitting, and the inner metal fitting A suspension bolt supporter characterized in that the plate portion of the horizontal member is clamped between the clamping portion and the receiving portion of the external metal fitting.