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JP4434464B2 - Bus duct support structure - Google Patents
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JP4434464B2 - Bus duct support structure - Google Patents

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JP4434464B2
JP4434464B2 JP2000307070A JP2000307070A JP4434464B2 JP 4434464 B2 JP4434464 B2 JP 4434464B2 JP 2000307070 A JP2000307070 A JP 2000307070A JP 2000307070 A JP2000307070 A JP 2000307070A JP 4434464 B2 JP4434464 B2 JP 4434464B2
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bus duct
support
fixing member
support device
fixing
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JP2002118939A (en
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幸彦 山田
稔 吉田
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Kyodo Ky Tec Corp
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Kyodo Ky Tec Corp
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Description

【０００１】
【発明の属する技術分野】
本発明は高層ビル等で電気幹線路を構成するバスダクトを垂直方向に布設し、布設したバスダクトを適宜間隔で構造物に支持するバスダクト支持構造に関する。
【０００２】
【従来の技術】
従来のバスダクト支持装置としては、例えば実開昭５５−１６５１７３号に開示されている技術があり、これはバスダクトのハウジングの外側面に固定されボルト孔を有するハウジング金具と、床面にあけられ前記バスダクトが貫通する開口の周囲に固定され、ボルト孔を有する固定金具と、前記ハウジング金具及び前記固定金具のそれぞれの前記ボルト孔を貫通するボルトとを有し、少なくとも該ボルトに遊着するバネによって前記バスダクトを支持し、前記固定金具の前記ボルト孔の下方に突き出た前記ボルトに弾性部材を介して前記ボルトに螺合するナットで締め付けてなるものである。
【０００３】
また、他の技術として、例えば特公昭５３−３５２７０号に開示されている技術があり、これは高層ビル内に布設した垂直バスダクト線路に中間固定部を設け、該固定部を基準として上方および下方にある支持部に形成するスプリングを、当該バスダクトの通電による伸び出しに対応するように前記固定部から遠ざかるに従って順次圧縮量、サイズ或いはバネ定数を変化させて設定し、或いは平均値の伸縮量に対応するような圧縮量或いはバネ定数に設定してバスダクト荷重を通電時において各支持部に均等化分担支持させるものである。
【０００４】
【発明が解決しようとする課題】
ところが実開昭５５−１６５１７３号のバスダクト支持装置は、ビル等にバスダクトを垂直支持する場合に、各階或いは適宜間隔階毎にバネを有する前記バスダクト支持装置を設置する必要があり、バスダクト支持構造が全体的に高価となる。さらに各階でバスダクトの重さをバネで支持するため、設置時に各階毎にバネの調整が必要となり、支持装置の設置作業に多大な労力が必要となる。さらに各階にあるバスダクトを各階毎に支持装置のバネで支持するので、通電時にバスダクトの伸びが発生した場合、下方の支持装置のみで支持され、上方側に設置されている支持装置では支持されていない状態であるから、バスダクトの重みによりバスダクト自体が変形するという不具合が生ずる。
【０００５】
また特公昭５３−３５２７０号のバスダクト支持構造では、実開昭５５−１６５１７３号のバスダクト支持装置と同様に、固定部の階を除いて各階毎にバネ（スプリング）を有する支持部を設けるため、バスダクト支持構造が全体的に高価になると共に、各階毎にバネ定数等の設定を行わなければならないため、設置時に多大な労力が必要とされる。さらに中階に固定部を有する構成であって一般的に下階からバスダクトの布設作業を行うこととなるが、この場合に固定部以下の階の支持部に設けられたバネのバネ定数等の調整が難しく、不安定な状態で上階のバスダクトの布設作業を行わなければならないことから、作業時の安全性に欠けるという不具合が生ずる。
【０００６】
本発明は上記不具合を解消するためになされたものであって、垂直方向に布設するバスダクトを安価且つ容易に支持することができると共に、バスダクトの通電時の伸びに対するバスダクトの変形を未然に防止することが可能なバスダクト支持構造を提供することを目的とする。
【０００７】
【課題を解決するための手段】
本発明のバスダクト支持構造は、構造物に適宜間隔で設けた複数の支持装置により垂直方向に布設したバスダクトを支持するバスダクト支持構造に於いて、前記バスダクトの少なくとも上方支持部分で上部支持装置により前記バスダクトを上方に付勢して支持してなり、前記上部支持装置は、前記バスダクトへの固定を担い、基部面から突出する突出片を有するバスダクト上部用固定部材と、前記構造物への固定を担う構造物上部用固定部材とを有し、前記バスダクト上部用固定部材は一対の前記突出片を外方にしてバスダクト厚さ方向両面に配置され、前記基部面同士を締着具で締着して前記基部面相互で前記バスダクトを挟持することを特徴とする。前記上方付勢は、例えばバネなどの弾性部材等により、構造物に対してバスダクトを垂直方向に上方に引っ張る力を加えることにより行う。また、例えばバスダクト上部用固定部材を基部面の上下両端辺を略直角方向に屈曲する突出片を有する断面略コ字形のチャネル部材とし、前記バスダクト上部用固定部材の一対を前記突出片が互いに離反する（基部面側が互いに向き合う）ようにバスダクトの厚さ方向両端面に配置し、前記基部面同士をボルト・ナットなど締着具で緊締して前記基部面相互でバスダクトを狭持しバスダクトと固定状態にする。
【０００８】
さらに本発明のバスダクト支持構造は、上記バスダクト支持構造に於いて、前記上方支持部分が前記バスダクトの最上部支持部分であることを特徴とする。
【０００９】
また本発明のバスダクト支持構造は、構造物に適宜間隔で設けた複数の支持装置により垂直方向に布設したバスダクトを支持するバスダクト支持構造に於いて、前記バスダクトの少なくとも最下部支持部分で最下部支持装置により前記バスダクトを構造物に対して固定状態で支持してなり、前記最下部支持装置は、前記バスダクトへの固定を担い、基部面から突出する突出片を有するバスダクト下部用固定部材と、前記構造物への固定を担う構造物下部用固定部材とを有し、前記バスダクト下部用固定部材は、一対の前記突出片を外方にして前記バスダクト厚さ方向両面に配置し、前記基部面同士を締着具で締着して前記基部面相互で前記バスダクトを挟持することを特徴とする。
【００１０】
さらに本発明のバスダクト支持構造は、上記バスダクト支持構造に於いて、前記上部支持装置と前記最下部支持装置との間で一若しくは複数の上部支持装置により前記バスダクトを支持していることを特徴とする。前記一以上の上部支持装置は適宜間隔に設けることが可能である。
【００１１】
さらに本発明のバスダクト支持構造は、上記バスダクト支持構造に於いて、前記上部支持装置による支持部分以外の支持部分に中間部支持装置を設け、前記中間部支持装置により前記バスダクトを構造物に対して少なくとも水平方向への移動を規制していることを特徴とする。
【００１２】
さらに本発明のバスダクト支持構造は、上記バスダクト支持構造に於いて、前記上部支持装置と前記最下部支持装置とによる支持部分以外の支持部分に中間部支持装置を設け、前記中間部支持装置により前記バスダクトを構造物に対して少なくとも水平方向への移動を規制してなることを特徴とする。
【００１３】
さらに本発明のバスダクト支持構造は、上記バスダクト支持構造に於いて、前記中間部支持装置は、バスダクトへの固定を担うバスダクト中間用固定部材と構造物への固定を担う構造物中間用固定部材とを有し、前記バスダクト中間用固定部材と前記構造物中間用固定部材との間に中間部用案内部材を挿通してバスダクトの水平方向への移動を規制し、前記中間部用案内部材の上端部及び下端部近傍に規制部材を設け、前記規制部材により前記バスダクト中間用固定部材と前記構造物中間用固定部材との垂直方向への離間距離を規制することを特徴とする。前記規制部材により、バスダクトの上方への移動を一定距離内に規制可能となる。
【００１４】
さらに本発明のバスダクト支持構造は、上記バスダクト支持構造に於いて、前記上部支持装置は、バスダクトへの固定を担うバスダクト上部用固定部材と、構造物への固定を担う構造物上部用固定部材とを有し、少なくとも、前記バスダクト上部用固定部材と前記構造物上部用固定部材との間にバネ部材を介在し、前記バスダクト上部用固定部材に形成された前記一対の突出片に挿通した上部用案内部材を前記構造物上部用固定部材と固定することにより、前記バスダクト上部用固定部材を垂直方向にのみ移動可能に設置し、前記バネ部材が前記バスダクト上部用固定部材の前記突出片を上方へ付勢することを特徴とする。例えばバネ部材が圧縮された状態でバスダクト上部用固定部材と構造物上部用固定部材間に設置されることにより、バネ部材の伸びる力がバスダクト上部用固定部材に係ることになる。また、例えばバスダクト上部用固定部材を基部面の上下両端辺を略直角方向に屈曲する突出片を有する断面略コ字形のチャネル部材とし、前記バスダクト上部用固定部材の一対を前記突出片が互いに離反する（基部面側が互いに向き合う）ようにバスダクトの厚さ方向両端面に配置し、前記基部面同士をボルト・ナットなど締着具で緊締して前記基部面相互でバスダクトを狭持しバスダクトと固定状態にする共に、前記上部用案内部材を前記上下両突出片に挿通する。
【００１５】
さらに本発明のバスダクト支持構造は、上記バスダクト支持構造に於いて、前記上部用案内部材が構造物天井から吊り下げられた吊り具であると共に、前記構造物上部用固定部材が前記吊り具に設けられたナットであることを特徴とする。
【００１６】
また本発明のバスダクト支持構造は、構造物に適宜間隔で設けた複数の支持装置により垂直方向に布設したバスダクトを支持するバスダクト支持構造に於いて、前記バスダクトの少なくとも上方支持部分でバネ部材を有する上部支持装置により前記バスダクトを上方に付勢して支持し、前記バスダクトの少なくとも最下部支持部分でバネ部材を有さない最下部支持装置により前記バスダクトを構造物に対して固定状態で支持し、前記上部支持装置と前記最下部支持装置以外の支持部分にバネ部材を有さない中間部支持装置により前記バスダクトを構造物に対して少なくとも水平方向への移動を規制し、前記バスダクトの通電時においては、前記上部支持装置と前記最下部支持装置とで分担して支持することを特徴とする。
【００１７】
【作用】
本発明のバスダクト支持構造では、バスダクトの少なくとも上方支持部分で上部支持装置により該バスダクトを垂直方向に上方へ付勢して支持することにより、更に好適には上方支持部分をバスダクトの最上部支持部分とする或いは上方支持部分にバスダクトの最上部支持部分を含ませることにより、バスダクトの上方付勢或いは引っ張りによって通電時の伸びを全て吸収することが可能であり、バスダクトを常時直線状態で設置することができる。
【００１８】
加えてバスダクトの少なくとも最下部支持部分で最下部支持装置によりバスダクトを構造物に対して固定状態で支持することで、通電時のバスダクトの伸長に対応しつつ安定した支持が可能となる。またバスダクトの荷重を上部支持装置のみ、或いは前記上部支持装置と最下部支持装置等により支持することになるため、バスダクトの重さなどでバスダクトが変形することがない。
【００１９】
さらに最上部支持部分など上方支持部分の上部支持装置と最下部支持装置との間でも一若しくは複数の上部支持装置により適宜間隔でバスダクトを支持することにより、超高層ビル等に対してバスダクトを垂直布設する場合等でも、バスダクトの支持が通電時のバスダクトの重さ及び伸びに充分耐えられるものとなる。
【００２０】
さらに上部支持装置による支持部分以外の支持部分に中間部支持装置を設けてバスダクトを支持し、或いは上部支持装置と最下部支持装置による支持部分以外の支持部分に中間部支持装置を設けてバスダクトを支持し、中間部支持装置が構造物に対するバスダクトの少なくとも水平方向への移動を規制することにより、中間部支持装置を使用している場所についてはバネ部材などを使用する必要がなくなり、より安価で、安定した垂直バスダクトの電気幹線路を形成することが可能となる。
【００２１】
さらに、例えば中間部支持装置のバスダクトを固定するバスダクト中間用固定部材と構造物に固定される構造物中間用固定部材とに中間部用案内部材を挿通し、中間部用案内部材の両端部近傍に設けた規制部材でバスダクト中間用固定部材の上方への移動を一定距離に規制することにより、構造物に対してバスダクトの垂直方向への移動を一定距離内に規制しているため、より安定した垂直布設されたバスダクトの電気幹線路を形成することが可能となると共に、前記同様に中間部支持装置にバネを使用していないため、設置作業が容易となり、全体的に安価にバスダクトを支持することができる。
【００２２】
さらに、上部支持装置のバスダクト上部用固定部材と構造物上部用固定部材との間にバネ部材を介在し、前記バネ部材がバスダクト上部用固定部材を上方に付勢する構成にすることで、上方側に設置された上部支持装置でバスダクトを上方に引っ張って通電時の伸びを十分に吸収可能な状態とすることが可能であり、又その状態を維持することができる。
【００２３】
さらに、バスダクト上部用固定部材を基部面から突出する突出片を設けた形状とし、前記バスダクト上部用固定部材の一対を突出片を外方にしてバスダクトの厚さ方向両面に配置し、該基部面同士を締着具で締着して該基部面相互で該バスダクトを挟持すると共に、上部案内用部材を該突出片に挿通する構成により、バスダクト自体に孔開け加工が不要となり、又ある程度の上方に向かう長い伸びに対しても対応することができ、更にはバスダクト上部用固定部材の突出片に上部用案内部材を挿通するので、バスダクトの揺れ止めを防止することができる。
【００２４】
また、別例の上部支持装置として、最上階などの天井から吊下られた吊り金具など吊り具で支持することが可能であり、案内部材として吊り具を使用すると共に、構造物上部用固定部材に吊り具に固定されているナットを使用することにより、何らかの事情によって床面でバスダクトを支持できない場合などに対応することができる。
【００２５】
【発明の実施の形態】
以下では本発明のバスダクト支持構造を図に於ける具体的な実施例に基づいて説明するが、本発明はかかる実施例に限定されるものではない。図１から図８は本発明のバスダクト支持構造の第１実施例に関するものであり、図１は本発明で垂直布設したバスダクトを支持している状態を示す側面図及び正面図、図２は最下部支持装置の側面図及び正面図、図３は中間部支持装置の側面図及び正面図、図４は通電時の中間部支持装置を示す側面図及び正面図、図５は上部支持装置の側面図及び正面図、図６は通電時の上部支持装置を示す側面図及び正面図、図７は上部支持装置をバスダクト上部用固定部材の最上方へ移動した時の側面図、図８は上部支持装置の施工手順を示す説明図である。
【００２６】
前提として各実施例の対象のバスダクトは、複数相からなる絶縁処理された導体をハウジングで被覆してなるものであり、前記バスダクトをオフィスビル等に垂直布設し、オフィスビル等の上方階まで電気幹線路を形成する。その際に各階の床面を垂直布設されたバスダクトが貫通し、例えば図１に示すように、各階毎或いは適宜間隔毎に貫通したバスダクトを支持する支持装置を設けることになる。各階毎等にバスダクト支持装置を設置することにより、垂直布設されたバスダクトの水平方向への移動を規制し、加えてバスダクトの落下を未然に防止することができる。
【００２７】
そして、本発明の第１実施例のバスダクト支持構造は、図１に示すように、垂直布設されたバスダクト１を複数のバスダクト支持装置で各階毎に支持するものであり、複数設置するバスダクト支持装置として、最下部の支持部分でバスダクト１を支持する最下部支持装置２と、最上部を含む上方の支持部分に設置する上部支持装置３と、最下部支持装置２と上部支持装置３による支持部分以外の支持部分で最下部支持装置２と上部支持装置３との中間に設置する中間部支持装置４という異なる支持装置を設置し、バスダクト１の安定性の向上、設置コストの削減、設置作業の容易化を可能にするものである。以下、一般的に施工される順序である最下部支持装置２、中間部支持装置４、上部支持装置３の順に順次詳細を説明する。
【００２８】
最下部支持装置２は、垂直布設されたバスダクト１の支持装置の中で最下部の支持部分で支持するものであり、図２に示すように、バスダクト下部用固定部材２１と構造物下部用固定部材２２とを有し、構造物の床面５と固定状態となっている。
【００２９】
構造物下部用固定部材２２は、基部面２２ａの上端辺から上方突出片２２ｂが略直角に屈曲して延設され、その下端辺から下方突出片２２ｃが略直角に屈曲して延設された断面略コ字形の短尺棒状であり、図２には省略するが前記上方突出片２２ｂには、詳細を後述するバスダクト下部用固定部材２１とボルトナット等の締着具にて固定するためのボルト挿通孔が形成されている。一対の構造物下部用固定部材２２・２２は、床面５に形成されたバスダクト１の貫通口５ａから貫通突出したバスダクト１を支持するために、貫通口５ａの近傍で、突出したバスダクト１の幅方向に沿ってその長手方向を合わせ、上方突出片２２ｂ・２２ｂ相互及び下方突出片２２ｃ・２２ｃ相互が互いに離反するように配置し、床面５に固定している。
【００３０】
バスダクト下部用固定部材２１は、正面視略方形の基部面２１ａの下端辺から略直角に屈曲して外方に延設された突出片２１ｂを有する断面略Ｌ字形の金具であり、図２には省略するが、突出片２１ｂにはボルト挿通孔が形成され、前記ボルト挿通孔に締着具であるボルト２３ａを挿通してワッシャー２３ｃを介してナット２３ｂを緊締し、構造物下部用固定部材２２の上方突出片２２ｂと突出片２１ｂとが固定される。バスダクト下部用固定部材２１の一対は、バスダクト１の厚さ方向両端面に基部面２１ａ・２１ａ側を互いに内側方向に向けて挟持するように配置され、バスダクト１のハウジングを貫通しない場所で、基部面２１ａ・２１ａに締着具であるボルト２４ａを挿通してナット２４ｂで緊締し、基部面２１ａ・２１ａ同士でバスダクト１を挟持する。前記挟持により、一対のバスダクト下部用固定部材２１・２１とバスダクト１が固定状態となる。
【００３１】
前記ボルト２４ａ、ナット２４ｂ等による固定位置は、例えばボルト２４ａがバスダクト１の幅方向両端面に略接する程度の位置とすると良好であり、ボルト２４ａ頭部と基部面２１ａの外側面及びナット２４ｂと基部面２１ａの外側面の間に介在するワッシャー２４ｃ・２４ｃの内側端縁がバスダクト１のハウジングに係る程度にすることにより、バスダクト１をより強固に固定することが可能となると共に、バスダクト１の幅方向への水平移動を規制することが可能となる。
【００３２】
なお締着具はボルト２３ａ、２４ａやナット２３ｂ、２４ｂ等以外にも適宜であり、例えばバスダクト１の厚さ方向両端面の幅方向両端縁近傍でビスなどで固定する等でもよく、かかる構成によっても、バスダクト１を強固に固定することができると共に、水平方向への移動を規制することができる。またボルト締めやビス止め等で固定する場合であっても、予めバスダクト１に孔開け加工をする必要がなく施工性に優れる。
【００３３】
上記の如く、一対のバスダクト下部用固定部材２１・２１でバスダクト１を挟持して固定すると共に、構造物下部用固定部材２２の上方突出片２２ｂとバスダクト下部用固定部材２１の突出片２１ｂとをボルト２３ａ、ナット２３ｂで固定して、バスダクト下部用固定部材２１を構造物の床面５と固定状態とし、結果としてバスダクト１は水平方向、垂直方向ともに規制されて構造物の床面５に固定状態となる。
【００３４】
前記最下部支持装置２でバスダクト１を完全に固定した後、中間部支持装置４でバスダクト１を支持する。中間部支持装置４は、図３に示すように、バスダクト中間用固定部材４１と構造物中間用固定部材４２とを有し、バスダクト中間用固定部材４１は最下部支持装置２のバスダクト下部用固定部材２１と略同一形状であって、基部面４１ａに突出片４１ｂが屈曲延設された断面略Ｌ字形であり、また構造物中間用固定部材４２も最下部支持装置２の構造物下部用固定部材２２と略同一形状であって、基部面４２ａに上方突出片４２ｂと下方突出片４２ｃが屈曲延設された断面略コ字形である。
【００３５】
同様に、構造物中間用固定部材４２の一対は、バスダクト１の貫通口５ａの近傍で、上方突出片４２ｂ・４２ｂ相互及び下方突出片４２ｃ・４２ｃ相互が互いに離反するように配置されて床面５に固定され、またバスダクト中間用固定部材４１の一対は、突出片４１ｂ・４１ｂ相互が互いに離反する方向で配置され、基部面４１ａ・４１ａに締着具であるボルト４３ａを挿通してワッシャー４３ｃを介してナット４３ｂで緊締し、基部面４１ａ・４１ａ同士でバスダクト１を挟持する。
【００３６】
構造物の床面５と固定状態となった構造物中間用固定部材４２の上方突出片４２ｂと、バスダクト１と固定状態となったバスダクト中間用固定部材４１の突出片４１ｂとには、中間部用案内部材として一定長さを有するボルト４４ａを挿通する。ボルト４４ａにはワッシャー４４ｃ及び断面略円形のスペーサ４４ｄを填めて介在させ、スペーサ４４ｄと供にボルト４４ａをボルト挿通孔に挿通し、スペーサ４４ｄ分の一定距離あけて下端部近傍にワッシャー４４ｃを介してナット４４ｂを螺合して配置する。前記ボルト４４ａの頭部及びナット４４ｂは規制部材に相当し、ボルト４４ａ或いはボルト４４ａの軸部は中間部用案内部材に相当する。なお一定距離の間隔をあける方式はスペーサ４４ｄを介在する以外でも良く適宜である。
【００３７】
通常の施工時は、バスダクト１の伸びを吸収するため、バスダクト中間用固定部材４１の突出片４１ｂと構造物中間用固定部材４２の上方突出片４２ｂとの間を開けない位置にバスダクト中間用固定部材４１を位置させ、そのバスダクト中間用固定部材４１でバスダクト１を挟持固定する。従って、構造物中間用固定部材４２とバスダクト中間用固定部材４１を容易に施工、設置することができると共に、バスダクト１の重さを構造物中間用固定部材４２とバスダクト中間用固定部材４１で確実に支持することができる。
【００３８】
上記の如く、構造物の床面５に固定状態となっている構造物中間用固定部材４２と、バスダクト１と固定状態となっているバスダクト中間用固定部材４１とを垂直方向に移動可能に中間部用案内部材で接続し、中間部用案内部材の上下端部に規制部材であるボルト４４ａ頭部及びナット４４ｂを介在し、バスダクト１の移動を一定距離に規制することにより、完全に固定された最下部支持装置２から上方のバスダクト１の通電時の伸びをこの一定距離移動可能な構成が吸収することができる。
【００３９】
なお実質的に中間部支持装置４は、通電時でバスダクト１が伸長した場合以外ではバスダクト１の重さを支持すると共に水平方向への移動を規制するが、通電時等でバスダクトが伸びた場合は、図４に示すようにバスダクト中間用固定部材４１が浮き上がるので、バスダクト１の水平方向への移動を規制部材間で規制するのみとなる。またバスダクト１の移動可能な距離は適宜であるが、上方階へ向かう程距離を広くするようにすると好適である。
【００４０】
中間部支持装置４により順次等でバスダクト１を支持し、バスダクト支持装置が設置される場所の内、少なくとも最上部にあたる最上階の床面５を貫通したバスダクト１を支持する部分には、図５に示す上部支持装置３を設置し、上部支持装置３でバスダクト１を支持する。
【００４１】
上部支持装置３は、上記支持装置２、４と同様にバスダクト上部用固定部材３１と構造物上部用固定部材３２とを有し、構造物上部用固定部材３２は上記固定部材２２、４２と略同一形状であって、基部面３２ａに上方突出片３２ｂと下方突出片３２ｃが屈曲延設された断面略コ字形である。構造物中間用固定部材３２の一対は、バスダクト１の貫通口５ａの近傍で、上方突出片３２ｂ・３２ｂ相互及び下方突出片３２ｃ・３２ｃ相互が互いに離反するように配置されて床面５に固定される。
【００４２】
また床面５の貫通口５ａから突出したバスダクト１はバスダクト上部用固定部材３１と固定する。バスダクト上部用固定部材３１は、構造物上部用固定部材３２と類似形状であって、正面視略方形の基部面３１ａの上端辺と下端辺でそれぞれ略直角に屈曲され外方に延設された上方突出片３１ｂと下方突出片３１ｃとを有し、断面略コ字形のチャネル部材である。図５には省略するが、上方突出片３１ｂと下方突出片３１ｂには同軸で上部用案内部材を挿通可能な挿通孔が形成されている。
【００４３】
一対のバスダクト上部用固定部材３１・３１は、バスダクト１の厚さ方向両端面で基部面３１ａ・３１ａが互いに向き合い、上方突出片３１ｂ・３１ｂ相互及び下方突出片３１ｃ・３１ｃ相互が互いに離反する向きで配置され、バスダクト１のハウジングを貫通しない場所で、図に省略した基部面３１ａのボルト挿通孔に締着具であるボルト３３ａを挿通し、ワッシャー３３ｃを介在してナット３３ｂで緊締することにより、基部面３１ａ・３１ａ同士でバスダクト１を狭持し、バスダクト上部用固定部材３１とバスダクト１が固定状態となる。
【００４４】
前記ボルト３３ａ、ナット３３ｂ等による固定位置は、例えばボルト３３ａがバスダクト１の幅方向両端面に略接する程度の位置とすると良好であり、ボルト３３ａ頭部と基部面３１ａの外側面及びナット３４ｂと基部面３１ａの外側面の間に介在するワッシャー３３ｃ・３３ｃの内側端縁が、バスダクト１のハウジングに係る程度にすることにより、バスダクト１をより強固に固定することができると共に、バスダクト１の幅方向への水平移動を規制することができる。なお前記締着具はボルト３３ａやナット３３ｂ等以外にも適宜であり、例えばバスダクト１の厚さ方向両端面の幅方向両端縁近傍でビスなどで固定する等でもよく、かかる構成によっても、バスダクト１を強固に固定することができると共に、水平方向への移動を規制することができる。
【００４５】
構造物上部用固定部材３２の上方突出片３２ｂとバスダクト上部用固定部材３１の上方突出片３１ｂ及び下方突出片３１ｃに形成された挿通孔（図示せず）には、雄ねじが螺刻された上部用案内部材３４を挿通する。前記上部用案内部材３４は、バスダクト上部用固定部材３１の上下両突出片３１ｂ、３１ｃ間にナット３５及びバネ部材３６を介在して挿通され、前記挿通状態に於いて、バネ部材３６の下端部とナット３５上面とが接し、バネ部材３６の上端部とバスダクト上部用固定部材３１の上方突出片３１ｂとが接し、前記バネ部材３６は圧縮された状態である。さらに上部用案内部材３４は略下端でワッシャー３７ｂ・３７ｂを介在してナット３７ａ・３７ａを緊締することにより構造物上部用固定部材３２の上方突出片３２ｂに固定されている。
【００４６】
前記構成では、バスダクト１の水平方向への移動は確実に規制される一方で、バスダクト上部用固定部材３１は上部用案内部材３４と垂直方向に固定状態となっていないため、バスダクト上部用固定部材３１及びそのバスダクト上部用固定部材３１と固定状態となっているバスダクト１は、上下方向に移動可能になっている。
【００４７】
そして、バネ部材３６は、後述する施工方法により、圧縮された状態で介在しているため、バネ部材３６の伸びる力がナット３５及びバスダクト上部用固定部材３１の上方突出片３１ｂに係ることとなる。この際にナット３５自体は構造物に対して固定状態となっているため、バスダクト上部用固定部材３１の上方突出片３１ｂを上方へ押し上げる力が加わり、バスダクト上部用固定部材３１はバスダクト１と固定状態となっていることから、バスダクト１を上方へ引っ張る力となる。
【００４８】
従って、バスダクト１に通電していない状態でバスダクト１が伸長していない場合には、バネ部材３６が下方のバスダクト１を上方へ引っ張るので、垂直布設されたバスダクト１の重さによる屈曲することを未然に防止することが可能であると共に、バスダクト１の荷重を上部支持装置３、中間支持装置４、最下部支持部材２で分担して支持することができる。他方に於いて、通電時にバスダクト１が伸長した場合には、図６に示すように下方からのバスダクト１の伸びを全て吸収することが可能であると共に、バスダクトの荷重を上部支持装置３と最下部支持装置２で分担して支持することができる。
【００４９】
また通電時のバスダクト１の伸びに対応して充分に上部用案内部材３４の長さを確保する構成としているが、図７に示すように、バネ部材３６の下面に接しているナット３５によってバスダクト上部用固定部材３１の上方への移動を規制しているため、万一の場合にもバスダクト上部用固定部材３１が上部用案内部材３４から外れて落下することはない。つまり、バスダクト上部用固定部材３１の上方突出片３１ｂ底面から下方突出片３１ｃ上面までの距離よりも、上部用案内部材３４の上端部から介在するナット３５の下端部までの距離を長く形成すれば良いこととなる。
【００５０】
ここで上部支持装置３の施工方法を図８に添って説明する。先ず床面５から貫通突出しているバスダクト１の幅方向両側方に適宜間隔をあけて構造物上部用固定部材３２・３２を配置し、構造物の床面５に固定する。その後、後述する予め設定された支持ユニット３ａをバスダクト上部用固定部材３１・３１の基部面３１ａ・３１ａが互いに向きあうように、且つバスダクト１の厚さ方向両端面に前記基部面３１ａ・３１ａが接する状態で配置し、構造物上部用固定部材上に形成された挿通孔に上部用案内部材３４を挿通し、下方からナット３７ａで緊締して締着する。
【００５１】
その後に、バスダクト１の厚さ方向両端面に接している基部面３１ａ・３１ａ相互をボルト３３ａ、ナット３３ｂ等の締着具で緊締すると共に、バスダクト上部用固定部材３１・３１の位置決めを行い、バスダクト上部用固定部材３１・３１とバスダクト１とを固定状態とする。その後に支持ユニット３ａで予めバネ部材３６の圧縮を行っている上部用案内部材３４上部に設けられた圧縮支持部材（ナット）３８を外すことにより、バネ部材３４が圧縮された状態で上部支持装置３の設置が完了する。
【００５２】
前記支持ユニット３ａは予め工場などで組み立てられているが、この組立方法は以下の通りである。先ずバスダクト上部用固定部材３１の上下突出片３１ｂ、３１ｃに形成された挿通孔に、前記上下突出片３１ｂ、３１ｃ間にバネ部材３６及びバネ部材３６の下方にナット３５が介在するように上部用案内部材３４を挿通する。その後、上方突出片３１ｂの上方から上部用案内部材３４に圧縮支持部材（ナット）３８を螺合して固定し、下方突出片３１ｃの下方から上部用案内部材３４にワッシャー３７ｂ・３７ｂを介して２個のナット３７ａ・３７ａを互いに向きあうように螺合して固定する。その後に上下突出片３１ｂ、３１ｃ間に対して上方突出片３１ｂの上方に存在するナット３８とナット３５との間の距離を調節し、バネ部材３６の圧縮力を調整して組立が終了する。
【００５３】
この組み立てられた支持ユニット３ａを図８に示す前記施工方法に添って設置する際には、前記下方突出片３１ｃの下方に位置する２個のナット３７ａ・３７ａの内、下方に存在するナット３７ａを外し、上部用案内部材３４の下端から構造物上部用固定部材３２の挿通孔に挿通し、前記外したナット３７ａを挿通した上部用案内部材３４の下端に螺合することにより、構造物上部用固定部材３２に支持ユニット３ａを固定することができる。
【００５４】
上述した上部用支持装置３を使用することにより、施工現場でバネ部材のバネ定数などをわざわざ調整して設定する必要がなくなり、バスダクト１を支持する施工作業が容易となる。またバスダクト上部用固定部材３１の上下突出片３１ｂ、３１ｃに上部用案内部材３４が挿通された状態となっているため、地震時等のバスダクト１の揺れ止め効果が得られる。
【００５５】
以上のように本発明の第１実施例のバスダクト支持構造を使用することにより、全ての階にバスダクト支持装置としてバネ部材などを使用する必要がなくなり、コストダウンに繋がると共に、各階毎にバネ調整などが不要となるため施工作業が容易となる。更に、バスダクト１の最下部を固定し、最上部で引っ張る力が加わるように構成しているため、バスダクト１の通電時などの伸びを容易に吸収することが可能で、バスダクトの変形を未然に防止することができ、安全で安定した電気幹線路を形成することができる。
【００５６】
次に本発明のバスダクト支持構造の第２実施例について、第１実施例と異なる箇所を中心に詳細を説明する。図９及び図１０は第２実施例のバスダクト支持構造に於ける上部支持装置を示すものであり、図９は上部支持装置の側面図及び正面図、図１０は上部支持装置の施工手順を示す説明図である。
【００５７】
第２実施例のバスダクト支持構造は、最下部支持装置及び中間部支持装置は第１実施例の最下部支持装置２及び中間部支持装置４と同様であり、上部支持装置のみ異なる構成となっている。
【００５８】
第２実施例の上部支持装置３００は、図９に示すように、バスダクト上部用固定部材３０１と構造物上部用固定部材３０２とを有し、構造物上部用固定部材３０２は第１実施例と同様に、基部面３０２ａに上方突出片３０２ｂと下方突出片３０２ｃが屈曲延設された断面略コ字形である。構造物中間用固定部材３０２の一対は、バスダクト１の貫通口５ａの近傍で、上方突出片３０２ｂ・３０２ｂ相互及び下方突出片３０２ｃ・３０２ｃ相互が互いに離反するように適宜間隔を開けて配置され、構造物の床面５に固定されている。
【００５９】
バスダクト上部用固定部材３０１は、第一実施例と略同一形状であり、正面視略方形の基部面３０１ａの上端辺と下端辺でそれぞれ略直角に屈曲され外方に延設された上方突出片３０１ｂと下方突出片３０１ｃとを有し、断面略コ字形のチャネル部材である。図９には省略するが、上方突出片３０１ｂにはボルト挿通孔が形成され、また基部面３０１ａにも締着具であるボルトを挿通するボルト挿通孔が形成されている。
【００６０】
一対のバスダクト上部用固定部材３０１・３０１は、バスダクト１の厚さ方向両端面に接して基部面３０１ａ・３０１ａが互いに向き合い、上方突出片３０１ｂ・３０１ｂ相互及び下方突出片３０１ｃ・３０１ｃ相互が互いに離反する向きで配置され、バスダクト１のハウジングを貫通しない場所で、図に省略した基部面３０１ａのボルト挿通孔に締着具であるボルト３０３ａを挿通し、ワッシャー３０３ｃを介在してナット３０３ｂで緊締することにより、基部面３０１ａ・３０１ａ同士でバスダクト１を挟持し、バスダクト上部用固定部材３０１とバスダクト１が固定状態となって維持されている。
【００６１】
上部用案内部材３０４は雄ねじが螺刻された棒状であり、構造物上部用固定部材３０２の上方突出片３０２ｂの図に省略した挿通孔に挿通され、その略下端は、ワッシャー３０７ｂを介して螺合したナット３０７ａ及びナット３０５を緊締することで、上方突出片３０２ｂに固定されている。上部用案内部材３０４は、基部面３０１ａ・３０１ａ間に位置し、ナット３０５、バネ部材３０６、図に省略した挿通孔を有する平板状の圧縮支持部材３０８に挿通され、これらが上部用案内部材３０４に介在し、またバネ部材３０６はナット３０５上面と圧縮支持部材３０８下面間に挟まれた状態となる。バネ部材３０６は第１実施例と同様に圧縮された状態で介在しており、この圧縮状態で介在させる方法として後述する施工方法を使用することにより、容易に圧縮状態で介在させることができる。
【００６２】
圧縮支持部材３０８は、バスダクト上部用固定部材３０１の上方突出片３０１ｂのバスダクト幅方向両端部近傍に位置し、ワッシャー３０９ｃを介在してボルト３０９ａを挿通してナット３０９ｂを緊締することにより、バスダクト上部用固定部材３０１の上方突出片３０１ｂに固定されている。
【００６３】
前記上部用支持装置３００を施工するには、例えば図１０に示すように、先ず床面５から貫通突出しているバスダクト１の幅方向両側方に適宜間隔をあけて構造物上部用固定部材３０２を配置し、構造物の床面５に固定し、構造物上部用固定部材３０２の上方突出片３０２ｂに形成された上部用案内部材挿通孔に上部用案内部材３０４を挿通し、上下からナット３０５、３０７ａ等で固定する。
【００６４】
その後、バスダクト上部用固定部材３０１・３０１の基部面３０１ａ・３０１ａが互いに向きあうようにして、バスダクト１の厚さ方向両端面に基部面３０１ａ・３０１ａを接し、且つその下方突出片３０１ｃが構造物上部用固定部材３０２の上方突出片３０２ｂに接する位置にバスダクト上部用固定部材３０１・３０１を配置し、基部面３０１ａ・３０１ａを互いにボルト３０３ａやナット３０３ｂ等の締着具で緊締して基部面３０１ａ・３０１ａ同士でバスダクト１を挟持し、バスダクト上部用固定部材３０１とバスダクト１とを固定状態とする。
【００６５】
その後、上部用案内部材３０４の上端からバネ部材３０６を挿入し、更に上方から平板で略中央部に上部用案内部材挿通孔が形成された圧縮支持部材３０８を被せ、この圧縮支持部材３０８のバスダクト厚さ方向両端部に形成された締着具挿通孔と前記バスダクト上部用固定部材３０１の上方突出片３０１ｂに形成された締着具挿通孔とにワッシャー３０９ｃを介してボルト３０９ａを上方から挿通し、下方からボルト３０９ａにワッシャー３０９ｃを介してナット３０９ｂを螺合し、これらの締着具で締め付けることにより、圧縮支持部材３０８と上方突出片３０１ｂが接して固定されると共に、圧縮支持部材３０８とナット３０５間でバネ部材３０６が圧縮された状態となる。
【００６６】
圧縮されたバネ部材３０６の伸びる力は、構造物上部用固定部材３０２の上方突出片３０２ｂ及び圧縮支持部材３０８に係り、構造物上部用固定部材３０２の上方突出片３０２ｂは構造物に対して固定状態であるから、バネ部材３０６の伸びる力は圧縮支持部材３０８を上方に付勢する。そして、圧縮支持部材３０８はバスダクト上部用固定部材３０１と固定され、更にバスダクト上部用固定部材３０１はバスダクト１と固定状態となっていることから、バネ部材３０６の伸びる力は結果的にバスダクト１を上方へ押し上げる或いは引っ張る力となり、バスダクト１は上方へ引っ張る力が加わった状態で支持される。
【００６７】
なお図では省略したが、上部用案内部材３０４の上端部に更にナット等を設けるなど適宜であり、これにより圧縮支持部材３０８及びバスダクト上部用固定部材３０１が上部用案内部材３０４から外れることを防止することができる。
【００６８】
以上本発明の第２実施例について説明したが、本実施例を使用する場合には施工現場でバネ部材３０６を設置する必要があるものの、図１０に示すように容易に設置することが可能であり、また全ての階にバネ部材３０６を設ける必要がないことから、バスダクト支持構造全体として安価となり、その施工作業が容易となる。
【００６９】
次に本発明の第３実施例について説明する。本実施例の最下部支持装置及び中間部支持装置は、前記第１実施例及び第２実施例の最下部支持装置２及び中間部支持装置３と同一構成であるため、上部支持装置について説明する。図１１は第３実施例の上部支持装置の側面図及び正面図である。
【００７０】
本実施例の上部支持装置３１０は、床面５によりバスダクト１を支持するものではなく、図１１に示すように天井面６に固定して吊された吊り金具３１１でバスダクト１を支持するものであって、吊り金具３１１には雄ねじが螺刻され、上部用案内部材として兼用されており、又吊り金具３１１の下端部近傍には本実施例ではナットである構造物上部用固定部材３１２が螺合され固定されている。構造物上部用固定部材３１２の上方には吊り金具３１１に挿通されたバネ部材３１３を介在し、さらに平面視略方形の平板である圧縮支持部材３１４が図に省略した挿通孔で吊り金具３１１に挿通されており、バネ部材３１３の上方に圧縮支持部材３１４が介在している。圧縮支持部材３１４は吊り金具３１１に対して垂直方向に移動可能に設置されている。
【００７１】
またバスダクト上部用固定部材３１５は、正面視略方形の基部面３１５ａと、この基部面３１５ａの下端辺から外方に略直角に屈曲延設してなる突出片３１５ｂを有する断面略Ｌ字形であって、一対のバスダクト上部用固定部材３１５は、天井面６近傍まで突出したバスダクト１の厚さ方向両端面に基部面３１５ａ・３１５ａを接して基部面３１５ａ・３１５ａが相互に対向するように配置されている。基部面３１５ａ及びバスダクト１には図に省略したボルト挿通孔が適宜箇所に形成され、ワッシャー３１６ｃを介し前記ボルト挿通孔にボルト３１６ａを挿通してナット３１６ｂで緊締し、これら締着具を締め付けることにより、基部面３１５ａ・３１５ａ同士でバスダクト１を挟持し、バスダクト上部用固定部材３１５とバスダクト１とが固定状態となっている。
【００７２】
バスダクト上部用固定部材３１５の突出片３１５ｂと圧縮支持部材３１４の対応箇所には、図に省略したボルト挿通孔が形成されており、ワッシャー３１７ｃを介してボルト３１７ａをこれらボルト挿通孔に挿通してナット３１７ｂで緊締し、これら締着具で締め付けることにより、突出片３１５ｂと圧縮支持部材３１４とが接する状態で固定されている。
【００７３】
吊り金具３１１の下端部近傍に設けられたナット（構造物上部用固定部材）３１２を締め付けることにより、徐々にバネ部材３１３は圧縮されるが、バネ部材３１３を所要の圧縮状態とすることで、バスダクト１に上方へ引っ張る力が加わった状態で支持することができる。
【００７４】
つまりバネ部材３１３の伸びる力は、上部用案内部材（吊り金具）３１１の下端部近傍に設置されたナット（構造物上部用固定部材）３１２と圧縮支持部材３１４に係り、ナット（構造物上部用固定部材）３１２は吊り金具３１１に固定され構造物に対して固定状態であるため、バネ部材３１３の伸びる力は圧縮支持部材３１４を上方へ付勢することになる。圧縮支持部材３１４は、上部案内部材（吊り金具）３１１に対して垂直方向へ移動自在で、且つバスダクト１と固定状態であるバスダクト上部用固定部材３１５に固定されているため、結果的にバネ部材３１３の伸びる力はバスダクト１を上方へ引っ張る力となる。
【００７５】
本実施例ではバスダクト上部用固定部材３１５・３１５とバスダクト１を図に示すようにバスダクト１自体を貫通するように固定し、バスダクト上部用固定部材３１５とバスダクト１をより強固な固定状態としているが、前記第１実施例及び第２実施例と同様に、バスダクト１の幅方向両端面に接する位置で締着具により締着し、バスダクト上部用固定部材３１５・３１５相互でバスダクト１を挟持して固定するようにしても良い。
【００７６】
以上、本発明のバスダクト支持構造の第１実施例から第３実施例までを説明したが、本発明は前記実施例に限定されるものではなく、以下のような変形及び拡張をすることができる。
【００７７】
本発明の最下部支持装置、上部支持装置、中間部支持装置及びそれらを構成する部材の形状、個数、部材関係などは、上記実施例に限定されるものではなく、様々な形状、個数等とすることが可能である。
【００７８】
また、上部支持装置は、少なくとも最上部を支持すれば良いため、例えば図１２に示すように、超高層ビル等でバスダクト１を垂直布設し、その長さが長くなる場合などには適宜間隔で上部支持装置を設けて支持するようにしても良い。なお図１２に於いて、１はバスダクト、２は最下部支持装置、３は上部支持装置、４は中間部支持装置、５は床面である。
【００７９】
更に、第１実施例の支持ユニット３ａは予め工場等で組み立てられたユニットを施工現場に持ってくる構成で説明したが、当然に施工現場で組み立てて固定するようにしてもよい。
【００８０】
また、第３実施例の上部支持装置３１０を使用した場合で、例えば最上階に設置した場合などは、最上階の床面５にも中間部支持装置を設置するなど、各階毎或いは所要階に複数の支持装置を設けてもよい。
【００８１】
また、上記実施例の最下部支持装置２の構造物下部用固定部材２２とバスダクト下部用固定部材２１との間等に、耐震用に弾性材を介在するようにしてもよい。
【００８２】
また、本発明のバスダクト支持構造では、通電時のバスダクトの荷重を上部支持装置のみで支持する構成、或いは少なくとも上部支持装置と最下部支持装置で分担して支持する構成などが可能であり、バネ部材の引っ張り力等によってどちらの構成であっても良いが、支持する床面或いは天井面の負担等を考慮すると、少なくとも上部支持装置と最下部支持装置で分担して支持する構成の方が好適であり、バネ部材の引っ張り力は少なくとも通電時のバスダクトの伸びを吸収できる程度であれば良い。
【００８３】
【発明の効果】
本発明のバスダクト支持構造を使用することにより、垂直方向に布設されたバスダクトをできるだけ安価で且つ設置作業を容易なバスダクト支持装置を提供することが可能となると共に、バスダクトの通電時の伸びに対するバスダクトの変形を未然に防止することができるという効果を奏する。
【図面の簡単な説明】
【図１】（ａ）第１実施例のバスダクト支持構造で垂直布設したバスダクトを支持している状態を示す側面図。
（ｂ）第１実施例のバスダクト支持構造で垂直布設したバスダクトを支持している状態を示す正面図。
【図２】（ａ）第１実施例のバスダクト支持構造に於ける最下部支持装置の側面図。
（ｂ）第１実施例のバスダクト支持構造に於ける最下部支持装置の正面図。
【図３】（ａ）第１実施例のバスダクト支持構造に於ける中間部支持装置の側面図。
（ｂ）第１実施例のバスダクト支持構造に於ける中間部支持装置の正面図。
【図４】（ａ）通電時に於ける図３の中間部支持装置を示す側面図。
（ｂ）通電時に於ける図３の中間部支持装置を示す正面図。
【図５】（ａ）第１実施例のバスダクト支持構造に於ける上部支持装置の側面図。
（ｂ）第１実施例のバスダクト支持構造に於ける上部支持装置の正面図。
【図６】（ａ）通電時に於ける図５の上部支持装置を示す側面図。
（ｂ）通電時に於ける図５の上部支持装置を示す正面図。
【図７】図５の上部支持装置をバスダクト上部用固定部材の最上方へ移動した時の側面図。
【図８】（ａ）〜（ｅ）第１実施例のバスダクト支持構造で上部支持装置の施工手順を示す説明図。
【図９】（ａ）第２実施例のバスダクト支持構造に於ける上部支持装置の側面図。
（ｂ）第２実施例のバスダクト支持構造に於ける上部支持装置の正面図。
【図１０】（ａ）〜（ｄ）第２実施例のバスダクト支持構造で上部支持装置の施工手順を示す説明図。
【図１１】（ａ）第３実施例のバスダクト支持構造に於ける上部支持装置の側面図。
（ｂ）第３実施例のバスダクト支持構造に於ける上部支持装置の正面図。
【図１２】（ａ）第１実施例のバスダクト支持構造で垂直布設した別例のバスダクトを支持している状態を示す側面図。
（ｂ）第１実施例のバスダクト支持構造で垂直布設した別例のバスダクトを支持している状態を示す正面図。
【符号の説明】
１ バスダクト
２ 最下部支持装置
２１ バスダクト下部用固定部材
２２ 構造物下部用固定部材
２１ａ、２２ａ 基部面
２１ｂ、２２ｂ、２２ｃ 突出片
３、３００、３１０ 上部支持装置
３１、３０１、３１５ バスダクト上部用固定部材
３２、３０２、３１２ 構造物上部用固定部材
３４、３０４ 上部用案内部材
３６、３０６、３１３ バネ部材
３８、３０８、３１４ 圧縮支持部材
３１１ 吊り金具
３１ａ、３２ａ、３０１ａ、３０２ａ、３１５ａ 基部面
３１ｂ、３１ｃ、３２ｂ、３２ｃ、３０１ｂ、３０１ｃ、３０２ｂ、３０２ｃ、３１５ｂ 突出片
４ 中間部支持装置
４１ バスダクト中間用固定部材
４２ 構造物中間用固定部材
４１ａ、４２ａ 基部面
４１ｂ、４２ｂ、４２ｃ 突出片
４４ｄ スペーサ
５ 床面
６ 天井面[0001]
BACKGROUND OF THE INVENTION
  The present invention is a bus duct support in which a bus duct constituting an electric trunk line in a high-rise building or the like is installed in a vertical direction, and the installed bus duct is supported on a structure at an appropriate interval.ConstructionAbout.
[0002]
[Prior art]
  As a conventional bus duct support device, for example, there is a technology disclosed in Japanese Utility Model Laid-Open No. 55-165173, which includes a housing fitting fixed to the outer side surface of a bus duct housing and having a bolt hole, and the above-described floor metal plate. By a spring fixed to the periphery of the opening through which the bus duct passes and having a bolt hole, and a bolt penetrating the bolt hole of each of the housing bracket and the fixing bracket, and at least loosely attached to the bolt The bus duct is supported, and the bolt protruding below the bolt hole of the fixing bracket is tightened with a nut screwed to the bolt via an elastic member.
[0003]
  Further, as another technique, for example, there is a technique disclosed in Japanese Patent Publication No. 53-35270, which is provided with an intermediate fixing portion on a vertical bus duct line laid in a high-rise building, and the upper and lower sides with respect to the fixing portion. The spring formed on the support portion is set by changing the compression amount, size or spring constant sequentially as it moves away from the fixed portion so as to correspond to the extension by energization of the bus duct, or the expansion amount of the average value The corresponding compression amount or spring constant is set so that the bus duct load is equally shared and supported by each support portion during energization.
[0004]
[Problems to be solved by the invention]
  However, the bus duct support device disclosed in Japanese Utility Model Laid-Open No. 55-165173 requires that the bus duct support device having a spring is installed on each floor or at appropriate intervals when the bus duct is vertically supported on a building or the like.ConstructionIs generally expensive. Further, since the weight of the bus duct is supported by a spring on each floor, the spring needs to be adjusted for each floor at the time of installation, and much labor is required for the installation work of the support device. In addition, since the bus ducts on each floor are supported by the springs of the support device for each floor, if the bus duct expands when energized, it is supported only by the lower support device and is supported by the support device installed on the upper side. Since there is no state, the bus duct itself is deformed due to the weight of the bus duct.
[0005]
  In addition, the bus duct support of JP-B 53-35270ConstructionIn the same manner as the bus duct support device disclosed in Japanese Utility Model Laid-Open No. 55-165173, a support portion having a spring (spring) is provided for each floor except for the floor of the fixed portion.ConstructionHowever, since it is expensive as a whole, and a spring constant and the like must be set for each floor, a great amount of labor is required at the time of installation. Furthermore, it is a configuration having a fixed part on the middle floor, and generally the installation work of the bus duct will be performed from the lower floor, but in this case the spring constant etc. of the spring provided on the support part of the floor below the fixed part Since adjustment is difficult and the work for laying the upper floor bus duct has to be performed in an unstable state, there is a problem of lack of safety during work.
[0006]
  The present invention has been made to solve the above problems, and can support a bus duct laid in the vertical direction at low cost and easily prevent the bus duct from being deformed with respect to elongation when the bus duct is energized. Capable of bus duct supportConstructionThe purpose is to provide.
[0007]
[Means for Solving the Problems]
  Bus duct support of the present inventionConstructionIs a bus duct support that supports a bus duct installed in a vertical direction by a plurality of support devices provided at appropriate intervals in the structure.ConstructionInSaidBy the upper support device at least at the upper support part of the bus ductSaidSupports by urging the bus duct upwardThe upper support device bears fixing to the bus duct, and includes a bus duct upper fixing member having a protruding piece protruding from a base surface, and a structure upper fixing member responsible for fixing to the structure. The bus duct upper fixing member is disposed on both sides of the bus duct in the thickness direction with the pair of protruding pieces outward, and the base surfaces are fastened with a fastener to fix the bus duct between the base surfaces. PinchingIt is characterized by doing. The upward biasing is performed, for example, by applying a force that pulls the bus duct upward in the vertical direction to the structure by an elastic member such as a spring.Further, for example, the bus duct upper fixing member is a channel member having a substantially U-shaped cross section having protruding pieces that bend substantially vertically at both upper and lower sides of the base surface, and the pair of bus duct upper fixing members are separated from each other. Placed on both ends of the bus duct in the thickness direction so that the base surfaces face each other, and the base surfaces are fastened with fasteners such as bolts and nuts to hold the bus duct between the base surfaces and fix them to the bus duct. Put it in a state.
[0008]
  Furthermore, the bus duct support of the present inventionConstructionThe above bus duct supportConstructionInSaidThe upper support portion is the uppermost support portion of the bus duct.
[0009]
  AlsoBus duct support of the present inventionConstructionIsIn a bus duct support structure for supporting a bus duct installed in a vertical direction by a plurality of support devices provided at appropriate intervals in the structure,At least the lowest support part of the bus duct by the lowest support deviceSaidSupports the bus duct fixed to the structureThe lowermost support device bears fixing to the bus duct, and includes a bus duct lower fixing member having a protruding piece protruding from the base surface, and a structure lower fixing member responsible for fixing to the structure. The bus duct lower part fixing member is disposed on both sides of the bus duct in the thickness direction with a pair of projecting pieces outward, and the base surfaces are fastened with a fastener to mutually connect the base surfaces. Sandwich the bus ductIt is characterized by having.
[0010]
  Furthermore, the bus duct support of the present inventionConstructionThe above bus duct supportConstructionHowever, the bus duct is supported by one or a plurality of upper support devices between the upper support device and the lowermost support device. The one or more upper support devices can be provided at appropriate intervals.
[0011]
  Furthermore, the bus duct support of the present inventionConstructionThe above bus duct supportConstructionIn this case, an intermediate support device is provided in a support portion other than the support portion by the upper support device.,in frontIntermediate support deviceBy the aboveBus duct structureAgainstIt is characterized by restricting at least the movement in the horizontal direction.
[0012]
  Furthermore, the bus duct support of the present inventionConstructionThe above bus duct supportConstructionThe upper support device and the lowermost support deviceWhenAn intermediate support device is installed on the support part other than the support part by,in frontIntermediate support deviceBy the aboveBus duct structureAgainstRestrict at least horizontal movementNaIt is characterized by that.
[0013]
  Furthermore, the bus duct support of the present inventionConstructionThe above bus duct supportConstructionThe intermediate support device includes a bus duct intermediate fixing member for fixing to the bus duct and a structure intermediate fixing member for fixing to the structure.The aboveBus duct intermediate fixing member andSaidThe intermediate part guide member is inserted between the structure intermediate fixing member and the movement of the bus duct in the horizontal direction is restricted,SaidA regulating member is provided in the vicinity of the upper end and lower end of the intermediate guide member,SaidDepending on the regulation memberSaidBus duct intermediate fixing member andSaidThe distance in the vertical direction from the structure intermediate fixing member is regulated. The restriction member can restrict the upward movement of the bus duct within a certain distance.
[0014]
  Furthermore, the bus duct support of the present inventionConstructionThe above bus duct supportConstructionInSaidThe upper support device has a bus duct upper fixing member responsible for fixing to the bus duct, and a structure upper fixing member responsible for fixing to the structure, at least,SaidFixing member for bus duct upper partSaidA spring member is interposed between the fixing member for the upper part of the structure,On the pair of protruding pieces formed on the bus duct upper fixing memberInsert the upper guide memberSaidBy fixing with the structural upper fixing member,SaidThe bus duct upper fixing member is installed to be movable only in the vertical direction,SaidSpring memberSaidFixing member for upper part of bus ductThe protruding piece ofIs biased upward. For example, when the spring member is compressed and installed between the bus duct upper fixing member and the structure upper fixing member, the extending force of the spring member is related to the bus duct upper fixing member.Further, for example, the bus duct upper fixing member is a channel member having a substantially U-shaped cross section having projecting pieces that bend substantially vertically at both upper and lower sides of the base surface, and the pair of bus duct upper fixing members are separated from each other. Placed on both ends of the bus duct in the thickness direction so that the base surfaces face each other, and the base surfaces are fastened with fasteners such as bolts and nuts so that the bus duct is sandwiched between the base surfaces and fixed to the bus duct. At the same time, the upper guide member is inserted into the upper and lower protruding pieces.
[0015]
  Furthermore, the bus duct support of the present inventionConstructionThe above bus duct supportConstructionAnd the upper guide member is a hanger suspended from the ceiling of the structure, and the upper fixing member isSaidIt is a nut provided in a hanging tool..
[0016]
The present inventionBus duct supportConstructionIsIn a bus duct support structure for supporting a bus duct installed in a vertical direction by a plurality of support devices provided at appropriate intervals on the structure, the bus duct is moved upward by an upper support device having a spring member at least at an upper support portion of the bus duct. Energize and support,in frontThe bus duct is supported in a fixed state with respect to the structure by a lowermost support device having no spring member at least at the lowermost support portion of the bus duct, and a spring is supported on a support portion other than the upper support device and the lowermost support device. An intermediate support device having no members restricts the movement of the bus duct relative to the structure at least in the horizontal direction. When the bus duct is energized, it is shared by the upper support device and the lowermost support device. SupportIt is characterized by that.
[0017]
[Action]
  Bus duct support of the present inventionConstructionThen, by supporting the bus duct by urging it upward in the vertical direction by the upper support device at least at the upper support portion of the bus duct, more preferably, the upper support portion is used as the uppermost support portion of the bus duct or the upper support portion. By including the uppermost support portion of the bus duct, it is possible to absorb all the elongation at the time of energization by upward biasing or pulling of the bus duct, and the bus duct can be always installed in a straight line state.
[0018]
  In addition, by supporting the bus duct in a fixed state with respect to the structure by the lowermost support device at least at the lowermost support portion of the bus duct, it is possible to stably support the bus duct in response to the extension of the bus duct during energization. Further, since the load of the bus duct is supported only by the upper support device, or by the upper support device and the lowermost support device, the bus duct is not deformed by the weight of the bus duct.
[0019]
  Furthermore, by supporting the bus duct at an appropriate interval with one or a plurality of upper support devices even between the upper support device and the lower support device of the upper support portion such as the uppermost support portion, the bus duct is perpendicular to a skyscraper etc. Even when laying, the support of the bus duct can sufficiently withstand the weight and elongation of the bus duct when energized.
[0020]
  Further, an intermediate support device is provided in a support portion other than the support portion by the upper support device to support the bus duct, or an intermediate support device is provided in a support portion other than the support portions by the upper support device and the lowermost support device to provide the bus duct. By supporting and restricting the movement of the bus duct with respect to the structure in the horizontal direction at least in the horizontal direction, it is not necessary to use a spring member or the like for the place where the intermediate support device is used, and it is cheaper. It is possible to form a stable electric main line of a vertical bus duct.
[0021]
  Further, for example, an intermediate guide member is inserted into a bus duct intermediate fixing member for fixing the bus duct of the intermediate support device and a structure intermediate fixing member fixed to the structure, and in the vicinity of both ends of the intermediate guide member. By restricting the upward movement of the bus duct intermediate fixing member to a certain distance by the restriction member provided in the structure, the movement of the bus duct in the vertical direction with respect to the structure is restricted within a certain distance, so it is more stable. It is possible to form an electric trunk line of a vertically laid bus duct, and since no spring is used for the intermediate support device as described above, the installation work is facilitated and the bus duct is supported at a low cost as a whole. can do.
[0022]
  Furthermore, a spring member is interposed between the bus duct upper fixing member and the structure upper fixing member of the upper support device, and the spring member biases the bus duct upper fixing member upward, thereby By pulling the bus duct upward with the upper support device installed on the side, it is possible to sufficiently absorb the elongation when energized, and to maintain that state.
[0023]
  Further, the bus duct upper fixing member has a shape provided with protruding pieces protruding from the base surface, and the bus duct upper fixing member is disposed on both sides of the bus duct in the thickness direction with the protruding pieces outward. Fasten them together with fasteners and connect the bus duct between the base surfaces.PinchBy holding the upper guide member through the projecting piece, the bus duct itself does not need to be perforated, and can cope with a long upward extension to some extent. Since the upper guide member is inserted into the protruding piece of the fixing member, the bus duct can be prevented from shaking.
[0024]
  In addition, as an upper support device as another example, it is possible to support with a hanging tool such as a hanging metal fitting hung from the ceiling such as the top floor, etc., while using a lifting tool as a guide member, and a fixing member for a structure upper part By using the nuts fixed to the hanger, it is possible to cope with the case where the bus duct cannot be supported on the floor surface for some reason.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
  In the following, the bus duct support of the present inventionConstructionHowever, the present invention is not limited to such an embodiment. 1 to 8 show the bus duct support of the present invention.ConstructionFIG. 1 is a side view and a front view showing a state in which a vertically installed bus duct is supported according to the present invention, and FIG. 2 is a side view and a front view of a lowermost support device. Is a side view and a front view of the intermediate support device, FIG. 4 is a side view and a front view of the intermediate support device during energization, FIG. 5 is a side view and a front view of the upper support device, and FIG. FIG. 7 is a side view when the upper support device is moved to the uppermost position of the bus duct upper fixing member, and FIG. 8 is an explanatory view showing a construction procedure of the upper support device.
[0026]
  As a premise, the target bus ducts are formed by covering a plurality of phases of insulated conductors with a housing, and the bus ducts are installed vertically in an office building or the like, and are electrically connected to the upper floor of the office building or the like. A trunk line is formed. At that time, a vertically arranged bus duct passes through the floor surface of each floor, and for example, as shown in FIG. 1, a support device for supporting the bus duct penetrating every floor or at appropriate intervals is provided. By installing the bus duct support device on each floor or the like, it is possible to restrict the movement of the vertically laid bus duct in the horizontal direction and to prevent the bus duct from falling.
[0027]
  And the bus duct support of the first embodiment of the present inventionConstructionAs shown in FIG. 1, a vertically installed bus duct 1 is supported on each floor by a plurality of bus duct support devices, and the bus duct 1 is supported by a lowermost support portion as a plurality of installed bus duct support devices. The lowermost support device 2, the upper support device 3 installed on the upper support portion including the uppermost portion, and the lowermost support device 2 and the upper support at a support portion other than the support portion by the lowermost support device 2 and the upper support device 3 A different support device called an intermediate support device 4 installed in the middle of the device 3 is installed to improve the stability of the bus duct 1, reduce the installation cost, and facilitate the installation work. Hereinafter, details will be sequentially described in the order of the lowermost support device 2, the intermediate support device 4, and the upper support device 3, which are generally executed.
[0028]
  The lowermost support device 2 is supported by the lowermost support portion of the vertically installed bus duct 1 support device. As shown in FIG. 2, the bus duct lower fixing member 21 and the lower structure fixing member are fixed. It has a member 22 and is fixed to the floor 5 of the structure.
[0029]
  The structure lower fixing member 22 has an upper protruding piece 22b extending from the upper end side of the base surface 22a so as to be bent at a substantially right angle, and a lower protruding piece 22c extending from the lower end side thereof at a substantially right angle. Although it is a short bar shape having a substantially U-shaped cross section, although not shown in FIG. 2, the upper protruding piece 22b is a bolt for fixing to a bus duct lower fixing member 21 and a fastening member such as a bolt nut, which will be described in detail later. An insertion hole is formed. The pair of fixing members 22 and 22 for the lower part of the structure support the bus duct 1 penetrating and projecting from the through-hole 5a of the bus duct 1 formed on the floor surface 5, in order to support the bus duct 1 protruding in the vicinity of the through-hole 5a. The longitudinal direction is aligned along the width direction, and the upper protruding pieces 22b and 22b and the lower protruding pieces 22c and 22c are arranged so as to be separated from each other, and are fixed to the floor surface 5.
[0030]
  The bus duct lower fixing member 21 is a metal fitting having a substantially L-shaped cross section having a protruding piece 21b that is bent at a substantially right angle from the lower end side of a base surface 21a that is substantially square when viewed from the front, and extends outward. Although not shown, a bolt insertion hole is formed in the projecting piece 21b, a bolt 23a as a fastener is inserted into the bolt insertion hole, and a nut 23b is tightened through a washer 23c to fix the structure lower portion. The upper protruding piece 22b and the protruding piece 21b of 22 are fixed. The pair of bus duct lower fixing members 21 are arranged so that the base surfaces 21a and 21a are directed inward from each other at both end surfaces in the thickness direction of the bus duct 1.PinchThe bolt 24a as a fastener is inserted into the base surface 21a / 21a and tightened with a nut 24b at a place where the bus duct 1 does not pass through the housing of the bus duct 1, and the bus duct 1 is fastened with the nut 24b.PinchHold it. AbovePinchBy holding, the pair of bus duct lower fixing members 21 and 21 and the bus duct 1 are fixed.
[0031]
  The bolt 24a, the nut 24b, and the like are fixed at a position where the bolt 24a is substantially in contact with both end faces in the width direction of the bus duct 1, for example, and the bolt 24a head and the outer surface of the base surface 21a and the nut 24b By setting the inner edges of the washers 24c and 24c interposed between the outer surfaces of the base surface 21a to the extent related to the housing of the bus duct 1, the bus duct 1 can be more firmly fixed and the bus duct 1 It becomes possible to regulate horizontal movement in the width direction.
[0032]
  The fasteners are appropriate as well as bolts 23a, 24a, nuts 23b, 24b, etc., and may be fixed with screws or the like in the vicinity of both edges in the width direction of both ends in the thickness direction of the bus duct 1. In addition, the bus duct 1 can be firmly fixed and the movement in the horizontal direction can be restricted. Further, even when fixing by bolting or screwing, it is not necessary to make a hole in the bus duct 1 in advance, and the workability is excellent.
[0033]
  As described above, the bus duct 1 is fixed by the pair of bus duct lower fixing members 21 and 21.PinchIn addition to holding and fixing, the upper protruding piece 22b of the structure lower fixing member 22 and the protruding piece 21b of the bus duct lower fixing member 21 are fixed by bolts 23a and nuts 23b, and the bus duct lower fixing member 21 is structured. As a result, the bus duct 1 is restricted to both the horizontal direction and the vertical direction, and is fixed to the floor 5 of the structure.
[0034]
  After the bus duct 1 is completely fixed by the lowermost support device 2, the bus duct 1 is supported by the intermediate support device 4. As shown in FIG. 3, the intermediate support device 4 includes a bus duct intermediate fixing member 41 and a structure intermediate fixing member 42, and the bus duct intermediate fixing member 41 fixes the bus duct lower portion of the lowermost support device 2. The member 21 has substantially the same shape as that of the member 21, and has a substantially L-shaped cross section in which a protruding piece 41 b is bent and extended on the base surface 41 a, and the structure intermediate fixing member 42 is also fixed to the lower part of the lowermost support device 2. The member 22 has substantially the same shape as that of the member 22 and has a substantially U-shaped cross section in which an upper protruding piece 42b and a lower protruding piece 42c are bent and extended on the base surface 42a.
[0035]
  Similarly, the pair of structure intermediate fixing members 42 are arranged in the vicinity of the through-hole 5a of the bus duct 1 so that the upper protruding pieces 42b and 42b and the lower protruding pieces 42c and 42c are separated from each other. The pair of bus duct intermediate fixing members 41 are arranged in a direction in which the protruding pieces 41b and 41b are separated from each other, and bolts 43a as fasteners are inserted into the base surfaces 41a and 41a to provide washers 43c. The bus duct 1 is fastened with the nuts 43b through the base parts 41a and 41a.PinchHold it.
[0036]
  The intermediate projecting portion 42b of the structure intermediate fixing member 42 fixed to the floor 5 of the structure and the protruding piece 41b of the bus duct intermediate fixing member 41 fixed to the bus duct 1 have intermediate portions. As a guide member, a bolt 44a having a certain length is inserted. The bolt 44a is inserted with a washer 44c and a spacer 44d having a substantially circular cross section, and the bolt 44a is inserted into the bolt insertion hole together with the spacer 44d, and a certain distance corresponding to the spacer 44d is provided in the vicinity of the lower end portion via the washer 44c. Then, the nut 44b is screwed and arranged. The head portion of the bolt 44a and the nut 44b correspond to a restricting member, and the shaft portion of the bolt 44a or the bolt 44a corresponds to an intermediate portion guide member. It should be noted that the method of providing a constant distance may be appropriate as long as the spacer 44d is not interposed.
[0037]
  During normal construction, in order to absorb the elongation of the bus duct 1, the bus duct intermediate fixing is not performed between the protruding piece 41 b of the bus duct intermediate fixing member 41 and the upper protruding piece 42 b of the structure intermediate fixing member 42. The member 41 is positioned, and the bus duct 1 is fixed by the bus duct intermediate fixing member 41.PinchHold it. Accordingly, the structure intermediate fixing member 42 and the bus duct intermediate fixing member 41 can be easily constructed and installed, and the weight of the bus duct 1 can be reliably secured by the structure intermediate fixing member 42 and the bus duct intermediate fixing member 41. Can be supported.
[0038]
  As described above, the structure intermediate fixing member 42 fixed to the floor 5 of the structure and the bus duct intermediate fixing member 41 fixed to the bus duct 1 are movable in the vertical direction. It is completely fixed by connecting with the guide member for the part, and interposing the bolt 44a head and the nut 44b as the restricting members at the upper and lower ends of the guide part for the intermediate part, and restricting the movement of the bus duct 1 to a certain distance. Further, the structure capable of moving by a certain distance can absorb the extension of the upper bus duct 1 from the lowest support device 2 when energized.
[0039]
  The intermediate support device 4 substantially supports the weight of the bus duct 1 and restricts the movement in the horizontal direction except when the bus duct 1 is extended when energized, but when the bus duct extends when energized or the like. Since the bus duct intermediate fixing member 41 is lifted as shown in FIG. 4, only the movement of the bus duct 1 in the horizontal direction is restricted between the restricting members. In addition, the movable distance of the bus duct 1 is appropriate, but it is preferable to increase the distance toward the upper floor.
[0040]
  The bus duct 1 is sequentially supported by the intermediate support device 4 and the portion of the place where the bus duct support device is installed is supported at least in the portion supporting the bus duct 1 penetrating the floor surface 5 on the uppermost floor corresponding to the uppermost portion. The upper support device 3 shown in FIG. 3 is installed, and the upper support device 3 supports the bus duct 1.
[0041]
  The upper support device 3 includes a bus duct upper fixing member 31 and a structure upper fixing member 32, similar to the support devices 2 and 4, and the structure upper fixing member 32 is substantially the same as the fixing members 22 and 42. It has the same shape and has a substantially U-shaped cross section in which an upper projecting piece 32b and a lower projecting piece 32c are bent and extended on the base surface 32a. A pair of structure intermediate fixing members 32 are arranged in the vicinity of the through-hole 5a of the bus duct 1 so that the upper protruding pieces 32b and 32b and the lower protruding pieces 32c and 32c are separated from each other and fixed to the floor surface 5. Is done.
[0042]
  The bus duct 1 protruding from the through-hole 5a of the floor surface 5 is fixed to the bus duct upper fixing member 31. The bus duct upper fixing member 31 has a shape similar to that of the structure upper fixing member 32, and is bent at a substantially right angle at the upper end side and the lower end side of the base surface 31a having a substantially square shape when viewed from the front, and extends outward. The channel member has an upper protruding piece 31b and a lower protruding piece 31c and has a substantially U-shaped cross section. Although not shown in FIG. 5, the upper protruding piece 31b and the lower protruding piece 31b are formed with insertion holes through which the upper guide member can be inserted coaxially.
[0043]
  The pair of bus duct upper fixing members 31 and 31 are such that the base surfaces 31a and 31a face each other at both ends in the thickness direction of the bus duct 1, and the upper protruding pieces 31b and 31b and the lower protruding pieces 31c and 31c are separated from each other. The bolt 33a, which is a fastening tool, is inserted into the bolt insertion hole of the base surface 31a (not shown in the figure) at a place that does not penetrate the housing of the bus duct 1, and is tightened with a nut 33b with a washer 33c. The bus duct 1 is held between the base surfaces 31a and 31a, and the bus duct upper fixing member 31 and the bus duct 1 are fixed.
[0044]
  The bolts 33a, nuts 33b, and the like are preferably fixed at positions where the bolts 33a are substantially in contact with both end faces in the width direction of the bus duct 1, for example, the bolt 33a head, the outer surface of the base surface 31a, and the nut 34b. By setting the inner edges of the washers 33c and 33c interposed between the outer surfaces of the base surface 31a to the extent related to the housing of the bus duct 1, the bus duct 1 can be more firmly fixed and the width of the bus duct 1 is increased. Horizontal movement in the direction can be restricted. The fasteners are appropriate as well as the bolts 33a and nuts 33b. For example, the fasteners may be fixed with screws or the like in the vicinity of both end edges in the width direction of the both ends of the bus duct 1. 1 can be firmly fixed, and movement in the horizontal direction can be restricted.
[0045]
  The upper protrusion piece 32b of the upper fixing member 32 for the structure and the upper protrusion piece 31b and the lower protrusion piece 31c of the upper fixing member 31 for the bus duct upper portion are threaded with male screws. The guide member 34 is inserted. The upper guide member 34 is inserted between the upper and lower protruding pieces 31b and 31c of the bus duct upper fixing member 31 with a nut 35 and a spring member 36 interposed therebetween, and the lower end portion of the spring member 36 in the inserted state. And the upper surface of the nut 35 are in contact with each other, the upper end portion of the spring member 36 is in contact with the upper protruding piece 31b of the bus duct upper fixing member 31, and the spring member 36 is in a compressed state. Further, the upper guide member 34 is fixed to the upper protruding piece 32b of the structure upper fixing member 32 by tightening the nuts 37a and 37a with washers 37b and 37b at substantially lower ends.
[0046]
  In the above-described configuration, the movement of the bus duct 1 in the horizontal direction is reliably restricted, but the bus duct upper fixing member 31 is not fixed in the vertical direction with respect to the upper guide member 34. 31 and the bus duct 1 fixed to the bus duct upper fixing member 31 are movable in the vertical direction.
[0047]
  And since the spring member 36 is interposed in the compressed state by the construction method mentioned later, the force which the spring member 36 extends will be related to the upper protrusion piece 31b of the fixing member 31 for the nut 35 and the bus duct upper part. . At this time, since the nut 35 itself is fixed to the structure, a force is applied to push the upward protruding piece 31 b of the bus duct upper fixing member 31 upward, and the bus duct upper fixing member 31 is fixed to the bus duct 1. Since it is in a state, it becomes a force pulling the bus duct 1 upward.
[0048]
  Therefore, when the bus duct 1 is not extended in a state where the bus duct 1 is not energized, the spring member 36 pulls the lower bus duct 1 upward, so that bending due to the weight of the vertically installed bus duct 1 is prevented. In addition to being able to prevent it, the load of the bus duct 1 can be shared and supported by the upper support device 3, the intermediate support device 4, and the lowermost support member 2. On the other hand, when the bus duct 1 expands when energized, it is possible to absorb all the extension of the bus duct 1 from below as shown in FIG. The lower support device 2 can share and support it.
[0049]
  In addition, the length of the upper guide member 34 is sufficiently secured corresponding to the expansion of the bus duct 1 when energized. However, as shown in FIG. 7, the bus duct is formed by a nut 35 in contact with the lower surface of the spring member 36. Since the upward movement of the upper fixing member 31 is restricted, the bus duct upper fixing member 31 does not fall off the upper guide member 34 even in the unlikely event. That is, if the distance from the upper end portion of the upper guide member 34 to the lower end portion of the interposed nut 35 is formed longer than the distance from the bottom surface of the upper protruding piece 31b of the bus duct upper fixing member 31 to the upper surface of the lower protruding piece 31c. It will be good.
[0050]
  Here, the construction method of the upper support device 3 will be described with reference to FIG. First, the structure upper fixing members 32 and 32 are arranged at appropriate intervals on both sides in the width direction of the bus duct 1 that penetrates and protrudes from the floor surface 5, and are fixed to the floor surface 5 of the structure. Thereafter, the base surfaces 31a and 31a of the bus duct upper fixing members 31 and 31 face each other, and the base surfaces 31a and 31a are arranged on both end surfaces in the thickness direction of the bus duct 1 in a predetermined support unit 3a to be described later. The upper guide member 34 is inserted into an insertion hole formed on the structure upper fixing member, and is tightened and tightened from below with a nut 37a.
[0051]
  Thereafter, the base surfaces 31a and 31a that are in contact with both end surfaces in the thickness direction of the bus duct 1 are fastened with fasteners such as bolts 33a and nuts 33b, and the bus duct upper fixing members 31 and 31 are positioned, The bus duct upper fixing members 31 and 31 and the bus duct 1 are fixed. Thereafter, by removing the compression support member (nut) 38 provided on the upper guide member 34 where the spring member 36 is compressed in advance by the support unit 3a, the upper support device in a state where the spring member 34 is compressed. 3 installation is completed.
[0052]
  The support unit 3a is assembled in advance at a factory or the like, and this assembling method is as follows. First, in the insertion hole formed in the upper and lower protruding pieces 31b and 31c of the fixing member 31 for the upper part of the bus duct, the upper member so that the nut 35 is interposed below the spring member 36 and the spring member 36 between the upper and lower protruding pieces 31b and 31c. The guide member 34 is inserted. Thereafter, a compression support member (nut) 38 is screwed and fixed to the upper guide member 34 from above the upper projecting piece 31b, and is attached to the upper guide member 34 from below the lower projecting piece 31c via washers 37b and 37b. The two nuts 37a and 37a are screwed and fixed so as to face each other. Thereafter, the distance between the nut 38 and the nut 35 existing above the upper projecting piece 31b is adjusted between the upper and lower projecting pieces 31b and 31c, and the compression force of the spring member 36 is adjusted to complete the assembly.
[0053]
  When the assembled support unit 3a is installed in accordance with the construction method shown in FIG. 8, the nut 37a present below the two nuts 37a and 37a located below the downward projecting piece 31c. Is inserted into the insertion hole of the upper fixing member 32 from the lower end of the upper guide member 34, and is screwed into the lower end of the upper guide member 34 through which the removed nut 37a is inserted. The support unit 3a can be fixed to the fixing member 32.
[0054]
  By using the upper support device 3 described above, it becomes unnecessary to adjust and set the spring constant of the spring member at the construction site, and the construction work for supporting the bus duct 1 becomes easy. Further, since the upper guide member 34 is inserted into the upper and lower protruding pieces 31b and 31c of the bus duct upper fixing member 31, an effect of preventing the bus duct 1 from shaking during an earthquake or the like can be obtained.
[0055]
  As described above, the bus duct support of the first embodiment of the present invention.ConstructionThis eliminates the need to use a spring member or the like as a bus duct support device on all floors, leading to cost reductions and eliminating the need for spring adjustment for each floor and facilitating construction work. Furthermore, since the lowermost portion of the bus duct 1 is fixed and a pulling force is applied at the uppermost portion, it is possible to easily absorb the elongation when the bus duct 1 is energized, and the deformation of the bus duct is obviated. Therefore, a safe and stable electric trunk line can be formed.
[0056]
  Next, the bus duct support of the present inventionConstructionThe second embodiment will be described in detail with a focus on differences from the first embodiment. 9 and 10 show the bus duct support of the second embodiment.ConstructionFIG. 9 is a side view and a front view of the upper support device, and FIG. 10 is an explanatory view showing a construction procedure of the upper support device.
[0057]
  Bus duct support of the second embodimentConstructionThe lowermost support device and the intermediate support device are the same as the lower support device 2 and the intermediate support device 4 of the first embodiment, and only the upper support device is different.
[0058]
  As shown in FIG. 9, the upper support device 300 of the second embodiment includes a bus duct upper fixing member 301 and a structure upper fixing member 302, and the structure upper fixing member 302 is the same as that of the first embodiment. Similarly, the upper projecting piece 302b and the lower projecting piece 302c are bent and extended on the base surface 302a. A pair of structure intermediate fixing members 302 are arranged in the vicinity of the through-hole 5a of the bus duct 1 with an appropriate interval so that the upper protruding pieces 302b and 302b and the lower protruding pieces 302c and 302c are separated from each other, It is fixed to the floor 5 of the structure.
[0059]
  The bus duct upper fixing member 301 has substantially the same shape as that of the first embodiment, and is an upward projecting piece that is bent at substantially right angles at the upper end side and the lower end side of the base surface 301a that is substantially square when viewed from the front and extends outward. It is a channel member having 301b and a downward projecting piece 301c and having a substantially U-shaped cross section. Although omitted in FIG. 9, a bolt insertion hole is formed in the upward projecting piece 301b, and a bolt insertion hole through which a bolt as a fastener is inserted is also formed in the base surface 301a.
[0060]
  The pair of bus duct upper fixing members 301 and 301 are in contact with both end surfaces in the thickness direction of the bus duct 1 so that the base surfaces 301a and 301a face each other, and the upper protruding pieces 301b and 301b and the lower protruding pieces 301c and 301c are separated from each other. The bolt 303a, which is a fastening tool, is inserted into the bolt insertion hole of the base surface 301a (not shown in the drawing) at a place that does not penetrate the housing of the bus duct 1, and is tightened with a nut 303b with a washer 303c. Therefore, the bus duct 1 is connected between the base surfaces 301a and 301a.PinchThe bus duct upper fixing member 301 and the bus duct 1 are maintained in a fixed state.
[0061]
  The upper guide member 304 has a rod shape in which a male screw is threaded, and is inserted into an insertion hole (not shown) of the upper protruding piece 302b of the structure upper fixing member 302. The lower end of the upper guide member 304 is threaded through a washer 307b. By tightening the combined nut 307a and nut 305, the upper protruding piece 302b is fixed. The upper guide member 304 is positioned between the base surfaces 301a and 301a, and is inserted into a nut 305, a spring member 306, and a flat plate-like compression support member 308 having an insertion hole (not shown). In addition, the spring member 306 is sandwiched between the upper surface of the nut 305 and the lower surface of the compression support member 308. The spring member 306 is interposed in a compressed state as in the first embodiment, and can be easily inserted in a compressed state by using a construction method described later as a method of interposing in this compressed state.
[0062]
  The compression support member 308 is positioned in the vicinity of both ends in the bus duct width direction of the upper protruding piece 301b of the bus duct upper fixing member 301, and the bolt 309a is inserted through the washer 309c to tighten the nut 309b, thereby tightening the upper portion of the bus duct. It is being fixed to the upward protrusion piece 301b of the fixing member 301 for an object.
[0063]
  In order to construct the upper support device 300, for example, as shown in FIG. 10, first, the structure upper fixing member 302 is provided at appropriate intervals on both sides in the width direction of the bus duct 1 that penetrates and protrudes from the floor surface 5. The upper guide member 304 is inserted into the upper guide member insertion hole formed in the upper protruding piece 302b of the structure upper fixing member 302, and the nut 305 from above and below. Fix with 307a or the like.
[0064]
  Thereafter, the base surfaces 301a and 301a of the bus duct upper fixing members 301 and 301 face each other, the base surfaces 301a and 301a are brought into contact with both end surfaces in the thickness direction of the bus duct 1, and the downward projecting pieces 301c thereof are structures. The bus duct upper fixing members 301 and 301 are arranged at positions in contact with the upper projecting piece 302b of the upper fixing member 302, and the base surfaces 301a and 301a are fastened to each other with fasteners such as bolts 303a and nuts 303b to form the base surface 301a.・ Bus duct 1 between 301aPinchThe bus duct upper fixing member 301 and the bus duct 1 are fixed.
[0065]
  Thereafter, the spring member 306 is inserted from the upper end of the upper guide member 304, and further covered with a compression support member 308 having a flat plate and an upper guide member insertion hole formed in a substantially central portion from above, and a bus duct of the compression support member 308 A bolt 309a is inserted from above through a washer 309c through a fastener insertion hole formed at both ends in the thickness direction and a fastener insertion hole formed in the upper protruding piece 301b of the bus duct upper fixing member 301. The nut 309b is screwed onto the bolt 309a from below with a washer 309c and tightened with these fasteners, whereby the compression support member 308 and the upper protruding piece 301b are fixed in contact with each other, and the compression support member 308 The spring member 306 is compressed between the nuts 305.
[0066]
  The extending force of the compressed spring member 306 is related to the upper projecting piece 302b of the structure upper fixing member 302 and the compression support member 308, and the upper projecting piece 302b of the structure upper fixing member 302 is fixed to the structure. Since it is in the state, the extending force of the spring member 306 biases the compression support member 308 upward. Since the compression support member 308 is fixed to the bus duct upper fixing member 301 and the bus duct upper fixing member 301 is fixed to the bus duct 1, the extension force of the spring member 306 results in the bus duct 1 as a result. The bus duct 1 is supported in a state where a force for pulling upward or a pulling force is applied.
[0067]
  Although not shown in the figure, a nut or the like is further provided at the upper end of the upper guide member 304, which prevents the compression support member 308 and the bus duct upper fixing member 301 from being detached from the upper guide member 304. can do.
[0068]
  Although the second embodiment of the present invention has been described above, the spring member 306 needs to be installed at the construction site when using this embodiment, but it can be easily installed as shown in FIG. There is no need to provide a spring member 306 on all floors.ConstructionAs a whole, the cost becomes low and the construction work becomes easy.
[0069]
  Next, a third embodiment of the present invention will be described. Since the lowermost support device and the intermediate support device of the present embodiment have the same configuration as the lowermost support device 2 and the intermediate support device 3 of the first and second embodiments, the upper support device will be described. . FIG. 11 is a side view and a front view of the upper support device of the third embodiment.
[0070]
  The upper support device 310 of this embodiment does not support the bus duct 1 by the floor surface 5 but supports the bus duct 1 by a hanging metal fitting 311 that is fixedly suspended from the ceiling surface 6 as shown in FIG. The suspension fitting 311 is threaded with a male screw, and is also used as an upper guide member. In the vicinity of the lower end of the suspension fitting 311, a structure upper fixing member 312, which is a nut in this embodiment, is screwed. Combined and fixed. A spring member 313 inserted through the suspension fitting 311 is interposed above the structure upper fixing member 312, and a compression support member 314, which is a substantially rectangular flat plate in plan view, is inserted into the suspension fitting 311 through an insertion hole omitted in the drawing. The compression support member 314 is interposed above the spring member 313. The compression support member 314 is installed so as to be movable in the vertical direction with respect to the suspension fitting 311.
[0071]
  The fixing member 315 for the upper portion of the bus duct is substantially L-shaped in cross section having a base surface 315a that is substantially square when viewed from the front and a protruding piece 315b that is bent and extended outward at a substantially right angle from the lower end side of the base surface 315a. The pair of bus duct upper fixing members 315 are arranged so that the base surfaces 315a and 315a are opposed to each other with the base surfaces 315a and 315a being in contact with both end surfaces in the thickness direction of the bus duct 1 protruding to the vicinity of the ceiling surface 6. ing. Bolt insertion holes (not shown) are formed at appropriate positions in the base surface 315a and the bus duct 1, and the bolts 316a are inserted into the bolt insertion holes through the washers 316c and tightened with the nuts 316b to tighten these fasteners. As a result, the bus duct 1 is connected between the base surfaces 315a and 315a.PinchThe bus duct upper fixing member 315 and the bus duct 1 are in a fixed state.
[0072]
  Bolt insertion holes (not shown) are formed at corresponding portions of the protruding piece 315b of the bus duct upper fixing member 315 and the compression support member 314, and the bolts 317a are inserted into these bolt insertion holes via washers 317c. By tightening with the nut 317b and tightening with these fasteners, the protruding piece 315b and the compression support member 314 are fixed in contact with each other.
[0073]
  The spring member 313 is gradually compressed by tightening the nut (structure upper fixing member) 312 provided in the vicinity of the lower end portion of the suspension fitting 311, but the spring member 313 is brought into a required compression state, The bus duct 1 can be supported in a state where an upward pulling force is applied.
[0074]
  That is, the force that the spring member 313 extends is related to the nut (fixing member for the upper part of the structure) 312 and the compression support member 314 installed near the lower end of the upper guide member (hanging bracket) 311, and the nut (for the upper part of the structure). Since the fixing member 312 is fixed to the suspension fitting 311 and is fixed to the structure, the extending force of the spring member 313 biases the compression support member 314 upward. Since the compression support member 314 is movable in the vertical direction with respect to the upper guide member (hanging bracket) 311 and is fixed to the bus duct upper fixing member 315 fixed to the bus duct 1, as a result, the spring member is obtained. The extending force of 313 is a force that pulls the bus duct 1 upward.
[0075]
  In this embodiment, the bus duct upper fixing members 315 and 315 and the bus duct 1 are fixed so as to pass through the bus duct 1 itself as shown in the figure, and the bus duct upper fixing member 315 and the bus duct 1 are more firmly fixed. In the same manner as in the first and second embodiments, the bus duct 1 is fastened by a fastening tool at a position in contact with both end faces in the width direction of the bus duct 1, and the bus duct 1 is fixed between the bus duct upper fixing members 315 and 315.PinchIt may be held and fixed.
[0076]
  As described above, the bus duct support of the present inventionConstructionAlthough the first to third embodiments have been described, the present invention is not limited to the above-described embodiments, and the following modifications and extensions can be made.
[0077]
  The lowermost support device, the upper support device, the intermediate support device of the present invention, and the shape, number, and member relationship of the members constituting them are not limited to the above-described embodiments, and various shapes, numbers, etc. Is possible.
[0078]
  Further, since the upper support device only needs to support at least the uppermost portion, for example, as shown in FIG. 12, when the bus duct 1 is laid vertically in a high-rise building or the like and its length becomes longer, the upper support device is appropriately spaced. An upper support device may be provided for support. In FIG. 12, 1 is a bus duct, 2 is a lowermost support device, 3 is an upper support device, 4 is an intermediate support device, and 5 is a floor surface.
[0079]
  Furthermore, although the support unit 3a of the first embodiment has been described with a configuration in which a unit assembled in advance in a factory or the like is brought to the construction site, it may naturally be assembled and fixed at the construction site.
[0080]
  Further, when the upper support device 310 of the third embodiment is used, for example, when it is installed on the top floor, an intermediate support device is also installed on the floor surface 5 of the top floor. A plurality of support devices may be provided.
[0081]
  Moreover, you may make it interpose an elastic material for earthquake resistance between the fixing member 22 for structure lower parts of the lowermost support apparatus 2 of the said Example, and the fixing member 21 for bus duct lower parts.
[0082]
  Also, the bus duct support of the present inventionConstructionIn this case, it is possible to use a configuration in which the load of the bus duct during energization is supported only by the upper support device, or at least a configuration in which the load is shared and supported by at least the upper support device and the lowermost support device. However, in consideration of the load on the floor surface or ceiling surface to be supported, it is preferable to share and support at least the upper support device and the lowermost support device, and the tensile force of the spring member Is sufficient to absorb at least the elongation of the bus duct when energized.
[0083]
【The invention's effect】
  Bus duct support of the present inventionConstructionBy using this, it is possible to provide a bus duct support device that is as cheap as possible and facilitates installation work for bus ducts laid in the vertical direction, and prevents the bus duct from being deformed with respect to elongation when the bus duct is energized. There is an effect that can be done.
[Brief description of the drawings]
FIG. 1 (a) Bus duct support of the first embodimentConstructionThe side view which shows the state which is supporting the bus duct laid vertically by FIG.
(B) Bus duct support of the first embodimentConstructionThe front view which shows the state which is supporting the bus duct laid perpendicularly in FIG.
FIG. 2 (a) Bus duct support of the first embodimentConstructionThe side view of the lowermost support apparatus in FIG.
(B) Bus duct support of the first embodimentConstructionThe front view of the lowest support apparatus in FIG.
FIG. 3 (a) Bus duct support of the first embodimentConstructionThe side view of the intermediate part support apparatus in FIG.
(B) Bus duct support of the first embodimentConstructionThe front view of the intermediate part support apparatus in FIG.
4A is a side view showing the intermediate support device of FIG. 3 when energized. FIG.
(B) The front view which shows the intermediate part support apparatus of FIG. 3 at the time of electricity supply.
FIG. 5 (a) Bus duct support of the first embodimentConstructionThe side view of the upper support apparatus in FIG.
(B) Bus duct support of the first embodimentConstructionThe front view of the upper support apparatus in FIG.
6A is a side view showing the upper support device of FIG. 5 when energized. FIG.
(B) The front view which shows the upper support apparatus of FIG. 5 at the time of electricity supply.
7 is a side view when the upper support device of FIG. 5 is moved to the uppermost position of the bus duct upper fixing member. FIG.
FIGS. 8A to 8E show the bus duct support of the first embodiment.ConstructionExplanatory drawing which shows the construction procedure of an upper support apparatus.
FIG. 9 (a) Bus duct support of the second embodimentConstructionThe side view of the upper support apparatus in FIG.
(B) Bus duct support of the second embodimentConstructionThe front view of the upper support apparatus in FIG.
FIGS. 10A to 10D show the bus duct support of the second embodiment.ConstructionExplanatory drawing which shows the construction procedure of an upper support apparatus.
FIG. 11 (a) Bus duct support of the third embodimentConstructionThe side view of the upper support apparatus in FIG.
(B) Bus duct support of the third embodimentConstructionThe front view of the upper support apparatus in FIG.
FIG. 12 (a) Bus duct support of the first embodimentConstructionThe side view which shows the state which is supporting the bus duct of the other example laid vertically by FIG.
(B) Bus duct support of the first embodimentConstructionThe front view which shows the state which is supporting the bus duct of the other example laid vertically by.
[Explanation of symbols]
1 Bus duct
2 Bottom support device
21 Fixing member for lower part of bus duct
22 Fixing member for lower part of structure
21a, 22a Base surface
21b, 22b, 22c Projection piece
3, 300, 310 Upper support device
31, 301, 315 Fixing member for upper part of bus duct
32, 302, 312 Structure upper fixing member
34, 304 Upper guide member
36, 306, 313 Spring member
38, 308, 314 Compression support member
311 Hanging bracket
31a, 32a, 301a, 302a, 315a Base surface
31b, 31c, 32b, 32c, 301b, 301c, 302b, 302c, 315b Projecting piece
4 Intermediate support device
41 Bus duct intermediate fixing member
42 Fixing member for intermediate structure
41a, 42a Base surface
41b, 42b, 42c Projection piece
44d spacer
5 Floor
6 Ceiling

Claims (10)

構造物に適宜間隔で設けた複数の支持装置により垂直方向に布設したバスダクトを支持するバスダクト支持構造に於いて、
前記バスダクトの少なくとも上方支持部分で上部支持装置により前記バスダクトを上方に付勢して支持してなり、
前記上部支持装置は、前記バスダクトへの固定を担い、基部面から突出する突出片を有するバスダクト上部用固定部材と、
前記構造物への固定を担う構造物上部用固定部材とを有し、
前記バスダクト上部用固定部材は一対の前記突出片を外方にしてバスダクト厚さ方向両面に配置され、前記基部面同士を締着具で締着して前記基部面相互で前記バスダクトを挟持することを特徴とするバスダクト支持構造。In a bus duct support structure for supporting a bus duct installed in a vertical direction by a plurality of support devices provided at appropriate intervals in the structure ,
The upper support device at least in the upper support portion of the bus duct supports to urge the bus duct upwards,
The upper support device is responsible for fixing to the bus duct, and a bus duct upper fixing member having a protruding piece protruding from a base surface;
A fixing member for the upper part of the structure responsible for fixing to the structure;
The bus duct upper fixing member is disposed on both sides of the bus duct in the thickness direction with the pair of protruding pieces outward, and the base surfaces are fastened with a fastener to sandwich the bus duct between the base surfaces. Bus duct support structure characterized by 前記上方支持部分が前記バスダクトの最上部支持部分であることを特徴とする請求項１記載のバスダクト支持構造。The bus duct support structure according to claim 1, wherein the upper support portion is an uppermost support portion of the bus duct. 構造物に適宜間隔で設けた複数の支持装置により垂直方向に布設したバスダクトを支持するバスダクト支持構造に於いて、
前記バスダクトの少なくとも上方支持部分で上部支持装置により前記バスダクトを上方に付勢して支持してなり、
前記バスダクトの少なくとも最下部支持部分で最下部支持装置により前記バスダクトを構造物に対して固定状態で支持してなり、
前記最下部支持装置は、前記バスダクトへの固定を担い、基部面から突出する突出片を有するバスダクト下部用固定部材と、
前記構造物への固定を担う構造物下部用固定部材とを有し、
前記バスダクト下部用固定部材は、一対の前記突出片を外方にして前記バスダクト厚さ方向両面に配置し、前記基部面同士を締着具で締着して前記基部面相互で前記バスダクトを挟持することを特徴とするバスダクト支持構造。 In a bus duct support structure for supporting a bus duct installed in a vertical direction by a plurality of support devices provided at appropriate intervals in the structure,
The bus duct is biased upward and supported by an upper support device at least at an upper support portion of the bus duct,
The bottom supporting device at least the bottom support portion of said bus duct will be supported in a fixed state the bus duct to the structure thereof,
The lowermost support device is responsible for fixing to the bus duct, and a bus duct lower fixing member having a protruding piece protruding from the base surface,
A fixing member for the lower part of the structure responsible for fixing to the structure;
The fixing member for the lower part of the bus duct is disposed on both sides of the bus duct in the thickness direction with a pair of protruding pieces outward, and the base surfaces are fastened with a fastener to sandwich the bus duct between the base surfaces. features and to Luba Sudakuto support structure to lifting. 前記上部支持装置と前記最下部支持装置との間で一若しくは複数の上部支持装置により前記バスダクトを支持していることを特徴とする請求項３記載のバスダクト支持構造。The bus duct support structure according to claim 3, wherein the bus duct is supported by one or a plurality of upper support devices between the upper support device and the lowermost support device. 前記上部支持装置による支持部分以外の支持部分に中間部支持装置を設け、前記中間部支持装置により前記バスダクトを構造物に対して少なくとも水平方向への移動を規制していることを特徴とする請求項１又は２記載のバスダクト支持構造。An intermediate portion supporting device arranged to support a portion other than the supporting portion by the upper supporting device, characterized in that the front Symbol middle portion supporting device and restricts the movement of the at least a horizontal direction said bus duct against structure The bus duct support structure according to claim 1 or 2. 前記上部支持装置と前記最下部支持装置とによる支持部分以外の支持部分に中間部支持装置を設け、前記中間部支持装置により前記バスダクトを構造物に対して少なくとも水平方向への移動を規制してなることを特徴とする請求項３又は４記載のバスダクト支持構造。An intermediate portion supporting device arranged to support a portion other than the supporting portion by said upper support device wherein a lowermost supporting apparatus, by pre-Symbol middle portion supporting device to restrict the movement of the at least a horizontal direction said bus duct against structure bus duct the supporting structure according to claim 3 or 4, wherein Rukoto such Te. 前記中間部支持装置は、バスダクトへの固定を担うバスダクト中間用固定部材と構造物への固定を担う構造物中間用固定部材とを有し、前記バスダクト中間用固定部材と前記構造物中間用固定部材との間に中間部用案内部材を挿通してバスダクトの水平方向への移動を規制し、前記中間部用案内部材の上端部及び下端部近傍に規制部材を設け、前記規制部材により前記バスダクト中間用固定部材と前記構造物中間用固定部材との垂直方向への離間距離を規制することを特徴とする請求項５又は６記載のバスダクト支持構造。Said intermediate portion supporting apparatus has a structure intermediate fixing member responsible for fixing to bus duct intermediate fixing member and the structure responsible for fixing to bus duct, said structure intermediate fixed and the bus duct intermediate fixing member by inserting an intermediate portion guide member between the member restricts the movement in the horizontal direction of the bus duct, a regulating member provided on the upper and lower ends near the middle portion guide member, said by the regulating member bus duct bus duct the supporting structure according to claim 5 or 6, characterized in that to regulate the distance in the vertical direction between the intermediate fixed member and said structure intermediate fixing member. 前記上部支持装置は、バスダクトへの固定を担うバスダクト上部用固定部材と、構造物への固定を担う構造物上部用固定部材とを有し、少なくとも、前記バスダクト上部用固定部材と前記構造物上部用固定部材との間にバネ部材を介在し、前記バスダクト上部用固定部材に形成された前記一対の突出片に挿通した上部用案内部材を前記構造物上部用固定部材と固定することにより、前記バスダクト上部用固定部材を垂直方向にのみ移動可能に設置し、
前記バネ部材が前記バスダクト上部用固定部材の前記突出片を上方へ付勢することを特徴とする請求項１〜７の何れかに記載のバスダクト支持構造。 The upper support device has a bus duct upper fixing member responsible for fixing to bus duct, a structure upper fixing member responsible for fixing to a structure, at least, the structure upper and the bus duct upper fixing member by interposing a spring member between the use fixing member, for fixing the upper guide member which is inserted into the pair of projecting pieces formed in the fixing member for the bus duct upper and the structure upper fixing member, wherein The bus duct upper fixing member is installed to be movable only in the vertical direction,
Bus duct support structure according to any one of claims 1 to 7, characterized in that said spring member urges said projecting pieces of said bus duct upper fixing member upward. 前記上部用案内部材が構造物天井から吊り下げられた吊り具であると共に、前記構造物上部用固定部材が前記吊り具に設けられたナットであることを特徴とする請求項８記載のバスダクト支持構造。Wherein together with the upper guide member is hanging member suspended from the structure ceiling bus duct support according to claim 8, wherein the structure upper fixing member characterized in that it is a nut provided on the hanging member Structure . 構造物に適宜間隔で設けた複数の支持装置により垂直方向に布設したバスダクトを支持するバスダクト支持構造に於いて、
前記バスダクトの少なくとも上方支持部分でバネ部材を有する上部支持装置により前記バスダクトを上方に付勢して支持し、
前記バスダクトの少なくとも最下部支持部分でバネ部材を有さない最下部支持装置により前記バスダクトを構造物に対して固定状態で支持し、
前記上部支持装置と前記最下部支持装置以外の支持部分にバネ部材を有さない中間部支持装置により前記バスダクトを構造物に対して少なくとも水平方向への移動を規制し、
前記バスダクトの通電時においては、前記上部支持装置と前記最下部支持装置とで分担して支持することを特徴とするバスダクト支持装置。 In a bus duct support structure for supporting a bus duct installed in a vertical direction by a plurality of support devices provided at appropriate intervals in the structure,
The bus duct is biased upward and supported by an upper support device having a spring member at least at an upper support portion of the bus duct,
The bottom supporting device without the spring member at least the bottom support portion of the front SL bus duct is supported in a fixed state the bus duct to the structure thereof,
The bus duct is restricted from moving in the horizontal direction with respect to the structure by an intermediate support device that does not have a spring member in a support portion other than the upper support device and the lowermost support device,
Wherein at the time of energization of bus duct, said upper support device and the lowermost supporting device and shared by and support to characteristics and to Luba Sudakuto supporting device Rukoto.
JP2000307070A 2000-10-06 2000-10-06 Bus duct support structure Expired - Lifetime JP4434464B2 (en)

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US11183827B1 (en) 2019-03-07 2021-11-23 Faith Technologies, Inc. Intermediate busway support

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JP4884928B2 (en) * 2006-11-10 2012-02-29 共同カイテック株式会社 Bus duct support device
JP6012274B2 (en) * 2012-06-11 2016-10-25 共同カイテック株式会社 Bus duct support structure
JP6956936B2 (en) * 2017-04-21 2021-11-02 共同カイテック株式会社 Construction method of bus duct support
CN114156812A (en) * 2021-11-23 2022-03-08 镇江加勒智慧电力科技股份有限公司 Anti-seismic connector for starting end of intensive bus duct

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11183827B1 (en) 2019-03-07 2021-11-23 Faith Technologies, Inc. Intermediate busway support

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