JP4056924B2

JP4056924B2 - Double floor structure

Info

Publication number: JP4056924B2
Application number: JP2003127261A
Authority: JP
Inventors: 稔吉田; 稔金坂; 満男石井; 孝彦広瀬
Original assignee: Kyodo Ky Tec Corp
Current assignee: Kyodo Ky Tec Corp
Priority date: 2002-08-28
Filing date: 2003-05-02
Publication date: 2008-03-05
Anticipated expiration: 2023-05-02
Also published as: JP2004143914A

Description

【０００１】
【発明の属する技術分野】
本発明は、主として配線等を所望の位置から引き出せるフリーアクセスフロアに係り、特にパネルを床面上で支持し、パネル相互間等にカバーを設ける二重床構造に関する。
【０００２】
【従来の技術】
フリーアクセスフロアの技術分野において、電算機室、ＯＡ機器対応用として支持脚でパネルを支持する二重床構造が知られ、現代に至るまで多種多様な構成のものが広く用いられている。特に、建物の既設の床スラブは不陸を有するのが常であるが故に、支持脚の高さを調整可能とし、パネル敷設時に支持脚の高さを調整しながら不陸に適応して、フリーアクセスフロアの施工が行われている。
【０００３】
この種の支持脚の高さ調整機構を有する二重床構造は、主にパネルと支持脚とが一体的に固設された支持脚一体型或いは支柱一体型の構造と、パネルと支持脚とが別体で分離可能な支持脚分離型或いは支柱分離型の構造に大別される。そして、例えば独立した支持脚を有する支持脚分離型の二重床構造を不陸を有する床スラブ上に設置する場合、その支持脚或いは支柱の高さを調整し、パネル面を一様に平坦化してパネルを敷設する作業が現場施工で行われる。
【０００４】
しかし、上記の様な支持脚でパネルを支持する二重床構造は、二重床構造の施工後にオフィスでレイアウト変更等により、配線器具の設置、配線移増設等の変更が必要になった場合に、敷設された多数のパネルを取り外す必要性が生じ、かような変更時の施工作業が大がかりになるという欠点を有する。
【０００５】
かかる欠点の解消を図る二重床構造として、例えば略正方形のパネル間や４個のパネルの隅が近接する箇所に直線状や十字状の配線通路或いは配線溝を形成して、その上面開口をカバーで塞ぎ、上面を平坦化する配線溝型の二重床構造が知られている。斯様な二重床構造に関連する特許文献としては、例えば〈１〉実開平４−６６２４８号、〈２〉実開平１−１６８７４１号、〈３〉実開平５−９６２８１号、〈４〉実公平７−５８７号、〈５〉特開平９−２９６５９２号、〈６〉特開平３−１４４０６０号、〈７〉実開平５−５４７３６号、〈８〉実開平５−３４２３７号がある
【０００６】
【発明が解決しようとする課題】
ところで、フリーアクセスフロアの技術分野では、簡単な施工で、所定レベルの耐震性を確保することができ、又、ガタツキ音の発生を防止できる二重床構造が切望されている。
【０００７】
本発明は上記課題に鑑みなされたものであって、安価且つ簡単な構成のカバーをパネル隅部相互に係合し、パネルとカバーとを確実に位置決めすることが可能であり、簡単な施工で、所定レベルの耐震性を確保することができ、又、パネルやカバーのガタツキ音の発生を防止することができる二重床構造を提供することを目的とする。
【０００８】
【課題を解決するための手段】
本発明の二重床構造は、支持部を床面に配設し、複数のパネルを前記支持部で支持して整列配置し、前記複数のパネル隅部が集合する箇所の上面にカバーを設ける二重床構造であって、前記カバーの裏面側に設けられる弾性樹脂材の係合部と、前記集合箇所のパネル隅部の略周縁間に、若しくは前記略周縁間と前記略周縁近傍の側周縁間に設けられる被係合領域とを有し、前記カバーの係合部と前記被係合領域とを係合すると共に、前記複数のパネル隅部の集合箇所に於ける少なくとも一つのパネル隅部に、前記カバーを着脱可能に取り付けてヒンジ機構を設け、前記ヒンジ機構により前記カバーを開閉可能とすることを特徴とする。前記係合部は、前記カバーの裏面側に下方へ突出して設けられる金属材の凸部に弾性樹脂材を被覆して形成すると好適である。
【０００９】
また、本発明の二重床構造は、支持部を床面に配設し、複数のパネルを前記支持部で支持して整列配置し、前記複数のパネル隅部が集合する箇所の上面にカバーを設ける二重床構造であって、前記カバーを構成する金属材と、前記金属材の裏面側に重ねて設けられる弾性樹脂材と、前記金属材で形成され異なる位置で下方に突出して設けられる第１の係合部及び第２の係合部と、前記集合箇所のパネル隅部の略周縁間に設けられる被係合領域と、前記パネル隅部の前記被係合領域と異なる所定領域に形成される被係合部とを有し、前記パネル隅部に接する様に前記金属材の裏面側と前記パネル隅部との間に前記弾性樹脂材を介在させ、前記第１、第２の係合部を前記被係合領域と被係合部とにそれぞれ係合すると共に、前記複数のパネル隅部の集合箇所に於ける少なくとも一つのパネル隅部に、前記カバーを着脱可能に取り付けてヒンジ機構を設け、前記ヒンジ機構により前記カバーを開閉可能とすることを特徴とする。
【００１０】
また、本発明の二重床構造は、支持部を床面に配設し、複数のパネルを前記支持部で支持して整列配置し、前記複数のパネル隅部が集合する箇所の上面にカバーを設ける二重床構造であって、前記カバーを構成する金属材と、前記金属材の裏面側に重ねて設けられる弾性樹脂材と、前記金属材で形成され異なる位置で下方に突出して設けられる第１の係合部及び第２の係合部と、前記集合箇所のパネル隅部の略周縁間に設けられる被係合領域と、前記パネル隅部の段部に形成される係合孔とを有し、前記パネル隅部に接する様に前記金属材の裏面側と前記パネル隅部との間に前記弾性樹脂材を介在させ、前記第１、第２の係合部を前記被係合領域と係合孔とにそれぞれ係合することを特徴とする。前記二重床構造は、前記複数のパネル隅部の集合箇所に於ける少なくとも一つのパネル隅部に、前記カバーを着脱可能に取り付けてヒンジ機構を設け、前記ヒンジ機構により前記カバーを開閉可能とすると好適である。
【００１１】
また、本発明の二重床構造は、支持部を床面に配設し、複数のパネルを前記支持部で支持して整列配置し、前記複数のパネル隅部が集合する箇所の上面にカバーを設ける二重床構造であって、前記カバーの裏面側に設けられ、下部に下方に向かって内側に傾斜するテーパ部分が形成されている弾性樹脂材の係合部と、前記集合箇所のパネル隅部の略周縁間に、若しくは前記略周縁間と前記略周縁近傍の側周縁間に設けられる被係合領域とを有し、前記カバーの係合部と前記複数のパネル隅部の被係合領域とを係合することを特徴とする。前記二重床構造は、前記複数のパネル隅部の集合箇所に於ける少なくとも一つのパネル隅部に、前記カバーを着脱可能に取り付けてヒンジ機構を設け、前記ヒンジ機構により前記カバーを開閉可能とすると好適である。
【００１２】
また、本発明の二重床構造は、支持部を床面に配設し、複数のパネルを前記支持部で支持して整列配置し、前記複数のパネル隅部が集合する箇所の上面にカバーを設ける二重床構造であって、前記カバーの裏面側に弾性樹脂材の第１の係合部を下方へ突出して設け、弾性樹脂材の第２の係合部を前記第１の係合部から外方へ突出して設け、前記パネル隅部の略周縁を前記パネル隅部の角部を切り落とした形状で形成して、前記集合箇所の略周縁間と前記略周縁近傍の側周縁間に被係合領域を設け、前記第１の係合部が前記略周縁に接し、前記第２の係合部が前記側周縁に接するようにして、前記第１の係合部と前記第２の係合部とを前記被係合領域に係合することを特徴とする。前記二重床構造は、前記複数のパネル隅部の集合箇所に於ける少なくとも一つのパネル隅部に、前記カバーを着脱可能に取り付けてヒンジ機構を設け、前記ヒンジ機構により前記カバーを開閉可能とすると好適である。
【００１３】
また、本発明の二重床構造は、支持部を床面に配設し、複数のパネルを前記支持部で支持して整列配置し、前記複数のパネル隅部が集合する箇所の上面にカバーを設ける二重床構造であって、前記パネル隅部の略周縁を前記パネル隅部の角部を切り落とした形状で形成して、前記集合箇所の略周縁間に被係合領域を設け、前記カバーの金属板に各パネル隅部の略周縁に対応する所定位置で下方に突出する凸部を複数形成し、前記凸部を弾性樹脂材で被覆して、前記カバーの裏面側に突出部を設け、前記突出部を前記被係合領域に係合することを特徴とする。前記二重床構造は、前記複数のパネル隅部の集合箇所に於ける少なくとも一つのパネル隅部に、前記カバーを着脱可能に取り付けてヒンジ機構を設け、前記ヒンジ機構により前記カバーを開閉可能とすると好適である。
【００１４】
また、本発明の二重床構造は、前記パネルの隣り合う２辺近傍に、前記パネル隅部の集合箇所に設けられるカバーと異なる直線部カバーを開閉可能に設け、前記直線部カバーの裏面に、前記隣り合うパネル間に落とし込む突起部を形成することを特徴とする。また、本発明の二重床構造は、前記カバーを、内部が中空で上面側が開口する弾性樹脂材の上面側に金属材を設けて構成することを特徴とする。
【００１５】
【作用】
本発明の二重床構造は、弾性樹脂材で構成される係合部と被係合領域とを係合することにより、カバーとパネル隅部相互とを確実に位置決めし、設置されたカバーとパネルとの位置ズレを防止することが可能であり、所定レベルの耐震性を確保することができる。また、第１、第２の係合部を被係合領域と被係合部若しくは係合孔にそれぞれ係合することにより、カバーとパネル隅部相互とを確実に位置決め固定し、設置されたカバーとパネルとの位置ズレを防止することが可能であり、非常に高いレベルの耐震性を確保することができる。また、本発明の位置決め等の施工作業は簡単且つ確実に行うことができ、更には、位置ズレ等が施工へ及ぼす影響を極力小さくすることができる。
【００１６】
また、係合部を弾性樹脂材で構成する、或いはパネル隅部に接する様にカバーの裏面側とパネル隅部との間に弾性樹脂材を介在させることにより、ガタツキ音の発生を防止することができる。また、パネル隅部の集合箇所に設けるカバーは、安価且つ簡単な構成にすることができる。また、カバーを着脱可能に取り付けてヒンジ機構を設け、前記ヒンジ機構により前記カバーを開閉可能とすることにより、カバーを容易且つスムーズに開閉することが可能となり、配線の敷設、移増設を容易に行うことができると共に、カバーが離脱して損失することを防止できる。
【００１７】
また、弾性樹脂材の係合部の下部に下方へ向かって内側に傾斜するテーパ部分を形成することにより、係合部と被係合領域との係合を容易に行うことが可能となる。また、テーパ部分を圧入して係合部と被係合領域とを係合できるので、カバーとパネル隅部相互との位置決めを強固にすることができる。
【００１８】
【発明の実施の形態】
以下では、本発明の二重床構造の実施形態について説明する。図１〜図９は第１実施形態の二重床構造に関し、図１は二重床構造の全体構成を示す斜視図、図２はパネル、交差部カバー、直線部カバーを示す平面説明図、図３〜図６は直線部カバーに関する図、図７〜図９は交差部カバーに関する図である。
【００１９】
［第１実施形態及びその変形例の説明］
第１実施形態の二重床構造は、主として、交差部カバー４０の裏面に下方へ突出して形成された金属材でなる突出部の凸部４０１ａに弾性樹脂材４０２が覆われてなる係合部を設け、パネル２０の隅部の集合箇所に前記係合部が係合する被係合領域を設け、交差部カバー４０をパネル隅部が集合する箇所の上面に設置した際に、前記係合部の弾性樹脂材４０２を前記被係合領域のパネル隅部に接し介在するようにして、前記係合部を前記被係合領域に係合し、パネル隅部相互と交差部カバー４０を結合して、パネル２０の隅部相互を交差部カバー４０で位置決めすることを特徴とする。
【００２０】
第１実施形態の二重床構造は、図１及び図２に示すように、支持脚分離型のフロアパネルであり、所定の支持部として高さ調整可能な支持脚ユニット１０が床面に配設され、支持脚ユニット１０には略方形の基台１０１の略隅部に４個の支持脚１０２が各々配置して立設され、方形状床板のパネル２０が支持脚１０２で支持されて敷設されている。そして、前記支持脚ユニット１０に配置された支持脚１０２間等、パネル２０相互間の下方には配線通路５０が形成され、パネル２０間に縦横へ連続して格子状に形成された配線通路５０には、その直線部の上面開口に直線部カバー３０が覆設され、その交差部の上面開口に交差部カバー４０が覆設されている。図１に示す様に、支持脚ユニット１０は、床面に敷設される基台１０１と、その基台１０１上に上述した配線通路５０が形成されるように一定の間隔を開けて支持脚１０２が４つ立設されて構成されている。
【００２１】
各支持脚１０２は、高さ調整機構１０３を備え、高さ調整機構１０３は、略上半分等に螺子切りされたボルト脚部１０３ａにナット部１０３ｂが螺合され、ナット部１０３ｂの側周（若しくは底部若しくは上部）に後述するパネル２０の隅部を支持する略リング形状のパネル受け部１０３ｃが形成されている。そして、前記ナット部１０３ｂの上面には、例えば六角レンチが挿入できる六角状の開口など、ナット回し工具を挿入可能な開口部１０３ｄを有し、その開口部１０３ｄにレンチを挿入等してナット部１０３ｂを回動して螺子回しをし、ナット部１０３ｂを上下動させ、パネル受け部１０３ｃで支持されるパネル２０の高さを上方から調整し、床面の不陸に対する調整やパネル面を平坦化させる高さ調整が容易に可能な構成である。
【００２２】
パネル２０は、図１及び図２に示すように、略方形状の板材であり、その隅部形状は角部先端を切り落として形成され、４辺の側周縁近傍には上述した直線部カバー３０を受けるための段部２０１が形成され、その隅部の周縁近傍にも交差部カバー４０を受けるための段部２０２が形成されており、全周縁に沿って連続的に一巡して段部２０１、２０２が形成されている。
【００２３】
また、パネル２０の底面をパネル受け部１０３ｃで受けてパネル２０を支持脚１０２で支持するために、パネル２０の四隅部には支持脚１０２のナット部１０３ｂを挿入する支持脚挿入孔２０３が設けられている。支持脚挿入孔２０３は、例えばナット１０３ｂを略嵌挿若しくは遊挿可能な程度の大きさとする。前述の如く、支持脚ユニット１０によるパネル２０の支持等で、パネル２０相互を結合し、パネル２０の位置決めを簡単且つ確実に行うことができる。
【００２４】
尚、パネル２０は、金属材等の鋼板、更にコンクリート等の充填補強材を充填したものなど、金属製、木製、コンクリート製、金属とコンクリートを複合したもの等、任意の材料で構成することが可能であり、又、中空や空洞のもの、補強リプを形成したもの等、種々の材質、材料、形状を適用して適宜構成することができる。又、その大きさも例えば５００ｍｍ〜６００ｍｍ角の方形など適宜任意の大きさで形成することが可能である。
【００２５】
前記パネル２０において、図２に示す様に、前記パネル２０の隣り合う二辺の周縁近傍には、ヒンジ構造を構成する後述の直線部カバー３０のヒンジ部３０１が係合されるヒンジ係合孔２０４を、段部２０１内側に形成している。又、前記パネル２０四隅のうち一つの隅部には、後述の交差部カバー４０のヒンジ部４０３が係合されるヒンジ係合孔２０５を、支持脚挿入孔２０３よりも周縁に近い位置の段部２０７の内側に形成している。
【００２６】
更に、図２に示す様に、前記直線部カバー３０のヒンジ構造が構成される前記二辺には、前記支持脚挿入孔２０３とは別の異なる位置に、該直線部カバー３０を開いた時にその開いた状態を維持させるために、後述する直線部カバー３０の係止部３０２を係止するための係止孔２０６が形成されている。
【００２７】
交差部カバー４０は、その裏面に下方へ突出して形成された金属材４０１で成る凸部４０１ａに弾性樹脂材４０２が覆われて成る係合部を有し、該係合部が係合する被係合領域が、パネル隅部に該弾性樹脂材４０２が介在する様に設けられ、交差部カバー４０をパネル隅部が集合する箇所上面に設置した際、係合部の弾性樹脂材４０２が被係合領域に係合され、パネル２０の隅部相互が交差部カバー４０で位置決めされる。
【００２８】
交差部カバー４０は、図７〜図９に示すように、平面視略八角形であって、略板状の金属材４０１を基体として、金属材４０１の略下面に弾性を有する樹脂材４０２を覆設したものであり、金属材４０１と弾性樹脂材４０２とを重合して一体化し、略多角形或いは略円形に形成される。本例の金属材４０１は、例えば鋼板等の金属製で板状の略八角形に形成され、上面が平坦に形成されていると共に、その裏面側に複数の爪状の凸部４０１ａが設けられ、図示例の凸部４０１ａは４箇所の所定位置に切り込みを形成し、下方に折り曲げて突設されている。
【００２９】
金属材４０１の凸部４０１ａは、パネル２０の隅部周縁２０７と弾性樹脂材４０２を介して間接的に係合する構成、或いは弾性樹脂材４０２の隅部周縁２０７との係合を補強するように設けられる構成である。金属材４０１の凸部４０１ａは、本例の如くパネル２０の隅部周縁の個数に対応して設けると好適であり、例えば集合する各パネル２０の隅部周縁２０７に間接的に係合するように、その数だけパネル隅部に対応して設けるとよい。尚、金属材４０１に設ける凸部４０１ａは、例えば鋼板製の場合にプレス打ち抜き、折り曲げ加工で形成される。
【００３０】
弾性樹脂材４０２は、硬質ゴム或いは軟質樹脂材料等で形成され、例えば射出成形等の一体成形で、その外形は金属材４０１よりも若干大きい略同一形状に或いは略同一サイズの略同一形状に形成されている。その裏面側には補強機能を有する環状及び十字状の突出部４０３が下方に突出して形成され、金属材４０１の裏面側に差し込み式で係合若しくは嵌め込み可能となるように、突出部４０３内に前記凸部４０１ａを係入若しくは嵌挿する凹部４０３ａが凸部４０１ａに対応して形成されている。そして、前記凹部４０３ａに凸部４０１ａが嵌挿された突出部４０３は係合部若しくは嵌合部を構成し、前記嵌め込み構造により、金属材４０１と弾性樹脂材４０２は容易に離脱しないようになっている。
【００３１】
前記突出部４０３には、その下部に下方に向かって内側に傾斜するテーパ部分が設けられており、突出部４０３はパネル２０の隅部周縁２０７相互間の被係合領域にテーパ部分により圧入して係合設置され、交差部カバー部材４０の係合設置により集合する各パネル２０の隅部が強固に位置決めされる。
【００３２】
更に、弾性樹脂材４０２の一辺側若しくは一角側の一部など所定部位には、ヒンジ部４０４が側方に突出して形成され、例えば弾性樹脂材４０２と一体成形して形成される。前記ヒンジ部４０４は、直線部カバー３０のヒンジ部３０１と同様に、交差部カバー４０を回動して開閉する際に屈曲する屈曲部４０４ａと、下方に突出して形成されている。そして、パネル２０のヒンジ係合孔２０５に着脱自在に係合される略突起或いは凸部形状のヒンジ係合部４０４ｂを有し、パネル２０四隅のうち、１つの隅部に設けられているヒンジ係合孔２０５にヒンジ係合部４０４ｂが係合して設けられ、ヒンジ構造を構成するようになっている。
【００３３】
屈曲部４０４ａは、例えば薄肉連結部材や切り込みが形成された部材から成るが、交差部カバー４０が開閉可能となる構成であれば適宜であり、また、本実施形態のヒンジ係合部４０４ｂは、弾性力により着脱を容易にすべく、割溝を有する２つの略矢形形状に形成されている。尚、ヒンジ部４０４やヒンジ係合部４０４ｂの形状は任意形状とすることが可能であり、例えば図７、図９の図示の様に正面視で略矢形形状の他、側面視で略矢形形状とする等適宜である。
【００３４】
前記凹部４０３ａ内に凸部４０１ａを嵌挿して一体化された交差部カバー４０は、パネル２０の隅部が集合する集合箇所に於いて、凹部４０３ａに凸部４０１ａが嵌挿された係合部若しくは嵌合部が、集合箇所の各パネル２０の隅部周縁２０７相互により構成される被係合領域若しくは被嵌合領域に係合若しくは嵌合され、４つのパネル２０の隅部周縁２０７に係合部若しくは嵌合部の外周がそれぞれ接すると共に、前記係合部より外周側に位置する弾性樹脂材４０２の底面が各パネル２０隅部の段部２０２の上面に載置され、位置決めされる。更に、パネル２０四隅のうち、１つの隅部に設けられているヒンジ係合孔２０５にヒンジ係合部４０４ｂを係合して交差部カバー４０を設置する。
【００３５】
交差部カバー４０の前記係合部に於いては、例えば側周部を取り囲むように或いは取り巻くように覆って弾性樹脂材４０２が設けられ、前記係合部を４つのパネル２０の隅部周縁２０７の前記被係合領域に樹脂を介して係合することにより、係合がきつ過ぎたり、緩過ぎたりすることがなく、前記係合部の弾性樹脂部分を圧入して確実に係合することが可能である。そして、前記係合部がストッパーとなって交差部カバー４０の位置決めを簡単且つ確実に行うことができ、所定の耐震性を得ることができる。
【００３６】
また、弾性樹脂材４０２が、パネル２０の隅部周縁２０７や段部２０２に嵌って緩衝材として機能し、金属材４０１によるガタツキ音を防止できる。換言すれば、パネル２０相互が支持脚ユニット１０の立設する支持脚１０２で固定支持され、且つ４つのパネル２０の隅部２０２が交差部カバー４０で上方から押さえ付けられると共に、交差部カバー４０の係合部或いは嵌合部が集合箇所の各パネル２０の隅部周縁２０７相互により構成される被係合領域或いは被嵌合領域に上下方向へ係合或いは嵌合する構成の相乗効果により、パネル２０の水平方向等へのズレや移動を規制し、耐震効果を得ることができる。
【００３７】
上記例では、略八角形の環状の内側に十字形状が形成されている突出部４０３が下方に突出して設けられている弾性樹脂材４０２を交差部カバー４０に設け、係合部或いは嵌合部を構成する前記突出部４０３を、突出部４０３の略八角形の４辺がそれぞれパネル２０の隅部周縁２０７に接触するように、各パネル２０の隅部周縁２０７相互で構成される被係合領域に係合し、交差部カバー４０をパネル２０の隅部の略集合箇所に設置する構成について説明したが、例えば図１４〜図１６に示す変形例の構成等としてもよい。
【００３８】
図１４は変形例の交差部カバー４０に於ける弾性樹脂材４０２を示す図、図１５は変形例の交差部カバー４０の設置状態を示す平面図、図１６は変形例の交差部カバー４０をパネル２０の隅部に設置し、そのカバー４０を開いた状態に於ける二重床構造を示す部分斜視図である。
【００３９】
本変形例のカバー部材４０は、図１４〜図１６に示すように、裏面視で略八角形の第１の突出部４０３ｍと、略八角形の４辺から外方に突出する裏面視で略方形の第２の突出部４０３ｎとが下方に突設されている弾性樹脂材４０２を有し、弾性樹脂材４０２の上面側に金属材４０１が設けられるものである。尚、前記金属材４０１は、上述した図８に示す金属材４０１と略同一であり、凸部４０１ａを弾性樹脂材４０２の凹部４０３ａに嵌挿する取り付け構造等も共通するので、その詳細な説明及び図示は省略する。
【００４０】
前記弾性樹脂材４０２は、平面視で外形が略八角形であり、前述の如く、裏面視で略八角形の第１の突出部４０３ｍと、略八角形の４辺から外方に突出する裏面視で略方形の第２の突出部４０３ｎとが下方に突出形成され、第２の突出部４０３ｎは第１の突出部４０３ｍから延在し、一体的に形成されている第１の突出部４０３ｍと第２の突出部４０３ｎで構成される突出部は、裏面視で全体的に略十字形状になっている。
【００４１】
前記第１の突出部４０３ｍや第２の突出部４０３ｎの内部は中空或いは空洞であると共に、その上面側が開口しており、その周壁部分は適度な肉厚で形成されている。又、第１の突出部４０３ｍの内部には、図１４（ｂ）、（ｃ）に示すように、略井桁形状或いは略格子形状で多数の補強用リブ４０７が交差して設けられている。尚、補強用リブ４０７及びその設置形態は、例えば放射状に設けるなど、強度を向上することができる構成であれば適宜である。
【００４２】
前述の如く、適度な肉厚の突出部４０３ｍ、４０３ｎを設け、その内部に補強用リブ４０７を設ける構成により、樹脂成形の際の樹脂材料の節減や軽量化、コスト低減等を図ることができると共に、弾性樹脂材４０２の十分な強度や耐久性を確保することが可能となり、更には、金属材４０１と弾性樹脂材４０２を複合して組み合わせ交差部カバー４０を構成することにより、金属材４０１と弾性樹脂材４０２の強度が相俟って、交差部カバー４０に十分な強度や耐久性を確保することができる。
【００４３】
また、前記弾性樹脂材４０２には、上述した図７、図９の弾性樹脂材４０２と同様に、屈曲部４０４ａやヒンジ係合部４０４ｂにより構成されるヒンジ部４０４が、弾性樹脂材４０２の略八角形の一辺から外側方に突出して設けられ、又、弾性樹脂材４０２には、金属材４０１の凸部４０１ａが嵌挿される凹部４０３ａが上面側に設けられ、凹部４０３ａは第１の突出部４０３ｍの略八角形の４辺の内側に形設されている。
【００４４】
そして、図１５、図１６に示すように二重床構造に於いて、パネル２０の隅部周縁２０７及び隅部周縁２０７近傍の側周縁２０８で構成される被係合領域に、第１の突出部４０３ｍと第２の突出部４０３ｎで構成される突出部を係合し、交差部カバー４０を設置する。尚、上述の例と同様に、交差部カバー４０は、集合するパネル２０の隅部のうち一つの隅部に形成されているヒンジ係合孔２０５にヒンジ係合部４０４ｂを係合して設けられる。
【００４５】
前記交差部カバー４０の係合設置状態では、略八角形の第１の突出部４０３ｍの第２の突出部４０３ｎが形成されていない各４辺、及び前記４辺に内設される金属材４０１の凸部４０１ａが、４つのパネル２０の隅部周縁２０７にそれぞれ当接して係合或いは嵌合され、略方形の第２の突出部４０３ｎの両側方の外側面或いは側周壁が、パネル２０・２０間に於ける隅部周縁２０７近傍のパネル側周縁２０８にそれぞれ当接して係合或いは嵌合され、換言すれば、第１の突出部４０３ｍ、第２の突出部４０３ｎで構成される突出部が係合部として被係合領域に係合或いは嵌合し、パネル隅部周縁２０７から隅部周縁２０７近傍の側周縁２０８にまで及んで係合或いは嵌合する構成である。
【００４６】
上記の如く、交差部カバー４０に、パネル２０の隅部周縁２０７から隅部周縁２０７近傍の直線部の側周縁２０８にまで及んで係合する、或いはパネル２０の隅部の交差部領域から側辺側の直線部領域にまで係合する第１の突出部４０３ｍと第２の突出部４０３ｎを係合部として設け、敷設される複数のパネル２０の隅部周縁２０７及び隅部周縁２０７近傍の側周縁２０８の相互間の被係合領域に、交差部カバー４０を係合して設置する構成により、多数の被係合領域に多数の交差部カバー４０を全体的且つ一様に設置することができると共に、交差部カバー４０の安定性が高い設置や二重床構造の高い耐震性を、簡単な構成で且つ安価に達成することができる。
【００４７】
即ち、交差部カバー４０の第１の突出部４０３ｍと隅部周縁２０７相互での係合と、第２の突出部４０３ｎと隅部周縁２０７近傍の直線状の配線通路５０の上部に於ける側周線２０８相互での係合が相俟って、安定した強固な係合力、嵌合力を得、交差部カバー４０の縦横など水平方向の動きを規制し、強固に位置決め固定することが可能になり、位置ズレ、ガタツキを抑制、防止することができ、高い耐震性を確保することができる。また、パネル２０の隅部集合箇所に於ける被係合領域或いは交差部空間に、交差部カバー４０を上方から押し込んで閉塞する構成により、パネル２０の縦横など水平方向の動きを規制し、強固に位置決め固定することが可能になり、パネル２０の位置ズレ、ガタツキを抑制、防止することができ、高い耐震性を確保することができる。
【００４８】
尚、交差部カバー４０は、上記実施形態や上記変形例では、別体の金属材４０１と弾性樹脂材４０２とを嵌挿し、容易に離脱しないように圧入する構成としたが、例えばインサート成形等により一体成形にしてもよい。また、上記第１実施形態や上記変形例では、金属材４０１の凸部４０１ａが全て弾性樹脂材４０２等で覆われる例を示したが、必ずしもその必要はなく、図示しない例えばパネル２０の隅部周緑２０７に接する箇所で、先端を除いて凸部４０１ａの側周部のみを弾性樹脂材４０２等で取り巻くように形成してもよい。
【００４９】
また、上記交差部カバー４０の裏面の係合部は少なくとも弾性樹脂材４０２で形成される構成とすることが可能であり、例えば交差部カバー４０の裏面に弾性樹脂材４０２で形成される係合部を設け、パネル隅部の集合箇所の略周縁２０７に前記係合部が係合する被係合領域を設け、交差部カバー４０をパネル隅部が集合する箇所の上面に設置した際に、弾性樹脂材４０２の係合部を前記被係合領域の略周縁２０７に接するようにして係合し、パネル隅部相互と交差部カバー４０を結合して、パネル２０の隅部相互を交差部カバー４０で位置決めする構成としてもよい。
【００５０】
金属材４０１としては、鋼材やアルミ材等を適宜使用することができ、又、弾性樹脂材４０２としては、軟質或いは硬質のゴム系材料、ポリプロピレン（ＰＰ）やＡＢＳ、ビニール系樹脂、その他軟質或いは硬質の樹脂を適宜使用可能であり、その弾性力により自動的に復帰する機能或いはガタツキ防止機能を有するものであればよいが、好適には両者が得られるものとするとよい。
【００５１】
また、交差部カバー４０を用いる際に、支持脚ユニット１０で支持されるパネル２０を、所定の直線部及び交差部の配線通路５０を形成するように所定間隔を開けて複数、床面に整列配置し、パネル２０間に形成された配線通路５０の少なくとも交差部上面に交差部カバー４０を設けたものや、パネル２０を略密接して整列配置し、交差部に交差部カバー４０を設けたもの等も本発明に包含される。尚、離間したパネル２０相互間に配線通路が形成される場合でも形成されない場合でも、本発明によりパネル２０相互の強固な結合、交差部カバー４０の確実な位置決め、ガタツキ音の防止、所定の耐震性確保の効果を得ることができる。
【００５２】
一方、第１実施形態の直線部カバー３０は、図１〜図６に示すように、略長方形の板状で、パネル２０の隣り合う２辺に夫々設けられる直線部カバー３０は共通した形状であり、一方の長辺側にはヒンジ部３０１が側方に突出して形成され、前記ヒンジ部３０１は、直線部カバー３０を回動して開閉する際に屈曲する屈曲部３０１ａと、パネル２０のヒンジ係合孔２０４に着脱自在に係合される略突起形状のヒンジ係合部３０１ｂを有する。
【００５３】
前記屈曲部３０１ａは例えば薄肉連結部材や切り込みが形成された部材から成るが、直線部カバー３０が開閉可能となる構成であれば適宜であり、また、第１実施形態のヒンジ係合部３０１ｂは、弾性力により着脱を容易にすべく、割溝を有する２つの略矢形形状に形成されている。
【００５４】
尚、ヒンジ部３０１やヒンジ係合部３０１ｂの形状は任意形状とすることが可能であり、例えば図示例の正面視で略矢形形状の他、側面視で略矢形形状とする等適宜である。
【００５５】
他方の長辺側には、図４〜図６に示すように、裏面に波状に複数設けられた返り部３０２ａを有する略舌状の係止部３０２が形成され、直線部カバー３０を開けた際には、係止部３０２の先端等の返り部３０２ａがパネル２０の係止孔２０６に係止することにより、直線部カバー３０の開状態が維持されるようになっている。
【００５６】
上記の如く係止部３０２に返り部３０２ａを形成すると、係止して直線部カバー３０の開状態を容易に維持し、又、係止を離脱して直線部カバー３０を容易に閉じることができて好適であるが、係止部３０２は、その係止の離脱が容易な構成であれば適宜であり、例えば係止部３０２に返り部３０２ａを形成しない構成とすることも可能である。また、係止部３０２は弾性力を有する構成とすると好適である。
【００５７】
そして、直線部カバー３０の裏面には、図３に示すように、パネル２０間及び側周縁近傍の段部２０１間への落とし込みに確実に嵌って位置決めされるように、ズレ防止機能を有する突起部３０３が両側に略長手方向へ形成され、両側の突起部３０３間に補強用リブ３０４が形成されており、また、その表面は略平坦化して形成されている。
【００５８】
尚、変形例として、図１３の二点鎖線で示すように、突起部３０３の形状は、下面両側の所定位置で下方に突出する一対の爪状の突起部３０３ａとするなど適宜の構成を採用することができ、又、略長手方向に形成されている突起部３０３に、更に前記一対の爪状の突起部３０３ａを形成する構成としてもよい。
【００５９】
又、直線部カバー３０の上面には、例えば補強用リブ３０４間或いは突起部３０３間にスリット状の開口３０５を設けると、直線部カバー３０の下に敷設された配線や配線器具類を目視で確認することが容易に可能となって良好である。また、開口３０５を補強用リブ３０４間或いは突起部３０３間に設けることで、多数の開口３０５を設けても強度的な問題はなく好適である。
【００６０】
又、前記爪状の突起部３０３ａは一組或いは所定間隔を開けて複数組設けることが可能である。かような突起部３０３、３０３ａにより、直線部カバー３０を位置決めして確実に設置することができ、耐震性を向上することができる。直線部カバー３０は、例えば一のパネル２０の隣り合う２辺側或いはその周縁に設けられる。
【００６１】
［他の変形例の説明］
ここで、別の変形例の交差部カバー４０について説明する。前記別の変形例の交差部カバー４０は、その裏面に第１係合部４１１と第２係合部４１２、更に弾性樹脂材４０２が設けられる。また、パネル２０の隅部の略所定上面領域に第１係合部４１１を係合する被係合領域が設けられ、前記略所定上面領域と異なる所定上面領域に第２係合部４１２を係合する被係合部が形成されており、第１係合部４１１と第２係合部４１２とを前記被係合領域と前記被係合部にそれぞれ係合する際に、弾性樹脂材４０２が交差部カバー４０の裏面側でパネル２０の隅部に接するように介在し、パネル２０の隅部相互を交差部カバーで位置決め固定する。
【００６２】
より詳細には、別の変形例の交差部カバー４０には、図１０及び図１１に示す様に、鋼板製等の金属材４０１が略八角形の板状に形成され、その表面側は平坦に形成されており、又、裏面側の内方の所定位置にバネ状の第１係合部４１１が下方に突出して４箇所形成され、第１の係合部４１１と異なる位置である裏面側の外周縁近傍の３箇所に爪状の第２係合部４１２が下方に突出して形成されている。第１係合部４１１は、例えば絞りプレス加工等で形成され、第２係合部４１２は、例えば打ち抜き、折り曲げ加工等で形成される。また、第１係合部４１１及び第２係合部４１２以外の裏面には弾性樹脂材４０２が重合され、弾性樹脂材４０２には上記と同様に、側方に突出してヒンジ部４０４が設けられ、ヒンジ部４０４は屈曲部４０４ａとヒンジ係合部４０４ｂを有する。
【００６３】
尚、上記と同様に、弾性樹脂材４０２が第１係合部４１１や第２係合部４１２の側周縁や全体など所定部分に覆設されるようにしてもよい。他方に於いて、４つのパネル２０の隅部には、上記と同様に段部２０２が形成されており、そのうち３つのパネル２０隅部の段部２０２内端位置には第２係合部４１２を係合する係合孔２１１が形成され、１つのパネル２０の隅部には前述したと同様にヒンジ係合孔２０５が形成されている。尚、係合孔２１１は第２係合部４１２を係合しやすいように第２係合部４１２よりも若干大きく形成すると好適である。
【００６４】
そして、前記パネル２０隅部の集合箇所に於いて、交差部カバー４０を、ヒンジ係合孔２０５にヒンジ部４０４のヒンジ係合部４０４ｂを係入して取り付け、隅部周縁２０７相互で形成される被係合領域に第１係合部４１１を係合して、弾性或いはバネ性を有する第１係合部４１１を隅部周縁２０７に圧接させると共に、パネル２０の係合孔２１１に爪状の第２係合部４１２を挿入して係合する。そして、交差部カバー４０は、底面の弾性樹脂材４０２を介して段部２０２の上面に載置された状態で位置決め固定され、この位置決め固定では、パネル２０の隅部も交差部カバー４０の係合で相互に結合される。
【００６５】
そして、第１係合部４１１と第２係合部４１２の係合により、交差部カバー４０で４箇所のパネル２０の隅部を結合し、更に、第１係合部４１１及び被係合領域との係合と、第２係合部４１２及び係合孔２１１との係合は、その間に位置するパネル２０の部分を狭持するように作用し、相乗効果を発揮して交差部カバー４０によりパネル２０の隅部相互を強固に結合することができ、位置決め固定も簡単且つ確実に行うことができ、所定の耐震性を得ることができる。
【００６６】
ここで、パネル隅部の側周縁部分、又は周縁２０７に接する様に係合、或いは嵌合する前記第１の係合部４１１が存在するため、前記第２係合部４１２が係合孔２１１に容易に係合しやすいように、係合孔２１１を若干大きく形成しておくことが可能となり、従来技術における嵌合構造がゆるすぎたり、きつすぎたりする不具合を解消でき、前記第１、第２の係合部４１１，４１２における係合構造の相乗効果により確実、且つ安定してカバー４０をパネル２０隅部に設置、固定することができる。
【００６７】
尚、上記別の変形例では、交差部カバー４０に於いて、弾性樹脂材４０２を金属材４０１の底面に貼設し、重合して設ける例を示したが、これに限らず、直線部カバー３０に於いても同様に、弾性樹脂材を金属板の底面に貼設し、重合して設けた構成にしても良く、これにより、カバーの強度をより向上することができる。
【００６８】
上記別の変形例の交差部カバー４０は、金属材４０１の底面に貼設された弾性樹脂材４０２を介してパネル２０の隅部、例えば段部２０２の上面に載置されるので、弾性樹脂材４０２が緩衝材として機能し、例えば歩行時など金属材４０１によるガタツキ音を防止できる。
【００６９】
［第１実施形態の二重床構造及びその変形例の施工方法の説明］
次に、第１実施形態の二重床構造の施工方法について説明する。
【００７０】
先ず、スラブ床面にその部屋の敷設面積、大きさや形状に応じ、支持脚ユニット１０を立設するための位置決め用の墨出し線が引かれる。墨出しは、パネル２０の敷設位置や配線通路５０の位置などを考慮して行われる。そして、墨出し線が引かれた支持胸ユニット１０の立設位置に支持脚ユニット１０を所定間隔で設置する。この際に、高さ調整機構１０３を有する場合には高さ調整作業が行われ、又、これによりパネル２０の位置と配線通路５０との位置関係が特定される。その後、支持脚ユニット１０或いは支持脚１０２間にパネル２０を敷設していく。
【００７１】
第１実施形態及びその変形例では、４つの支持脚ユニット１０に対して１枚のパネル２０を敷設し、端部等以外のパネル２０の４隅部は、隣接して敷設されるパネル２０の隈部とそれぞれ突き合わせ或いは隣接し、互いに集合させる。これにより、例えば図１に示す様に、配線通路５０のみが上面開口で形成され、配線通路５０を残して整然としてパネル２０が敷設される。また、主要幹線等の幹線配線、配線器具設置が必要な場合は、パネル２０の敷設前に電気配線業者が先行して設置や配線を行う。
【００７２】
その後、例えば図１２、図１３に示す様に、直線部カバー３０及び交差部カバー４０を、パネル２０の相互間やパネル２０の隅部相互間に夫々設置する。各カバー３０、４０は開閉可能とするヒンジ構造を構成するヒンジ部３０１、４０４を有するので、パネル側の係合孔２０４、２０５に係合してカバー３０、４０を取り付けて固定し、カバー３０、４０を設置する。
【００７３】
ここで、パネル２０の隅部の集合箇所に交差部カバー４０の設置する際、支持脚ユニット１０でのパネル２０の支持や、パネル２０の隅部周縁２０７と交差部カバー４０の上記係合部或いは第１係合部４１１との係合により、パネル２０の隅部は相互に結合され、交差部カバー４０は係合され位置決めされる。尚、パネル２０は直線部カバー３０の設置状態に関わらず、安定して固定設置され支持される。
【００７４】
その後、パネル２０、直線部カバー３０、交差部カバー４０上に、最後の仕上げとして仕上材を敷設する。壁際・柱等の回りのボーダー処理については省略する。
【００７５】
次に、二重床構造の施工後にレイアウトや配線類の移・増設等の変更の必要性が生じ、新たに配線の敷設や配線器具等の設置を行う場合について説明する。
【００７６】
この場合、直線部カバー３０及び交差部カバー４０は、順次にヒンジ部３０１、４０４によるヒンジ構造で開閉可能に構成されているので、任意位置のカバー３０、４０を開ける。この際の回動操作により、交差部カバー４０の上面がパネル２０の隅部近傍領域の上面側に来るように配置し、開口状態を維持しておくようにする。
【００７７】
また、回動操作により、直線部カバー３０の上面がパネル２０の側周緑近傍領域の上面側に来るように設置し、カバー３０に設けられている係止部３０２を、前記側周縁近傍領域の上面側の係止孔２０６に係止して配線通路５の開口状態を維持するようにしておく。
【００７８】
上記の如くカバー３０、４０を開口状態にすることで、例えば図１３に示す様に、配線通路５０の上面は全て連続して開口した状態となり、その上方から配線類を落とし込んで敷設することができる。
【００７９】
また、敷設された配線を床上に立ち上げたい場合などは、図３に示す様に、直線部カバー３０の平面視略Ｕ字形状ノックアウト開口部分から配線立ち上げ、引込み等が可能であるが、敷設された配線類を数本まとめて大量に床上に立ち上げたい場合は、該カバー３０が樹脂製であるが故にその一部分、例えば補強用リブ３０４を残して任意の位置、領域を切断具で切断して配線立ち上げも可能である。
【００８０】
また、前述した様に、着脱自在の構成としたパネル側隅部のヒンジ係合部２０５及び交差部カバー４０のヒンジ部４０４により、交差部カバー４０を離脱させて開口を形成させ、ここから前記敷設された配線類を数本まとめて大量に床上に立ち上げすることもできる。
【００８１】
更に、配線通路５０の開口から、配線類や配線器具類を設置することができない場合は、各カバー３０、４０は開口状態を維持しているので、その配線通路５０の開口を利用して、作業者が手をいれてパネル２０を引き上げてパネル２０の下方を露出させ、簡単に配線類等を設置することが可能である。
【００８２】
例えば、パネル２０の１枚に対し、隣り合う少なくとも２辺の直線部カバー３０が開口状態を維持していれは、作業者は手を入れて、その１枚のパネル２０を引き上げる事が簡単にできる。この際、反対側の２辺の直線部カバー３０は、係合して取り付けられていないので、その開口状態で有るか無いかに関わらず、パネル２０の離脱、取り外しは容易に可能である。
【００８３】
尚、図１、図２、図１２、図１３では、直線部カバー３０及び交差部カバー４０のパネルへの配置関係は、パネル２０の隣合う２辺に２つの直線部カバー３０を設け、該カバー３０間のパネル隅部に１つの交差部カバー４０を該パネル２０に取り付けて設けた例を示した。しかし、これに限らず、１枚のパネル２０に対し、隣接辺に直線部カバー３０が２枚が設けられ、その直線部カバー３０間のパネル２０隅部の対向する位置のパネル２０隅部に、交差部カバー４０の１枚が、その係合部やヒンジ部３０１、４０４の係合により着脱可能に設置されても良い。この場合、２つの直線部カバー３０及び１つの交差部カバー４０は近接せず離れた位置に設けられるので、ヒンジ構造による開閉の際に、カバー相互の干渉がなくなり、夫々個別に開閉操作が可能となり、スムーズなヒンジ開閉を行うことができる。
【００８４】
［第１実施形態の二重床構造及びその変形例の効果］
上記第１実施形態の二重床構造及びその変形例は以下の主な効果を有する。
（１）パネル２０に直線部カバー３０、交差部カバー４０を設置する構造が、段部２０２、２０３や、ヒンジ部３０１、４０４及びヒンジ係合孔２０４、２０５からなるヒンジ係合構造や、係合部と被係合領域に係合構造や、係止部３０２及び係止孔２０６からなる係止構造で基本的に構成されるため、カバー３０、４０を設置した二重床構造は複雑化することが無く、加工・製造・施工が容易である。
【００８５】
（２）カバー３０、４０には、硬質樹脂、軟質樹脂、その他のゴム等の弾性材料を用いることが可能であり、安価で且つ容易に加工・製造することができる。また、これらの材料により、ヒンジ係合構造、嵌合・係合構造、係止構造を構成する部分を一体成形することが可能であることから、かかる点からも安価で且つ容易に加工・製造することができる。
【００８６】
（３）カバー３０、４０は、樹脂材を用いて構成することにより、小型化や軽量化を図ることが可能であるので、開閉動作を容易に行うことができると共に、その開状態や閉状態の維持を容易に行うことができ、施工作業も容易に且つ効率的に行うことができる。特に、カバー３０、４０のヒンジ部３０１、４０４を樹脂材で構成することができ、そのヒンジ部３０１、４０４により、カバー３０、４０の回動、開閉操作が容易に且つスムーズに行うことができる。従って、カバー３０、４０の開閉により、例えばパネル２０の下方或いは配線通路５０に先行配線された後でも、配線の敷設、移増設を容易に行うこともできる。
【００８７】
（４）カバー３０、４０は、ヒンジ係合構造でパネル２０側と一旦結合されれば、容易に離脱したり損失することが無く、カバーの３０、４０の取り扱いが簡単であり、又、カバー３０、４０の着脱も自在にできる。
【００８８】
（５）交差部カバー４０は、金属材４０１と弾性樹脂材４０２若しくは樹脂材若しくは弾性材とを重合して構成するので、金属材４０１に薄い板材等を使用して小型化、軽量化を図ることができ、又、弾性樹脂材４０２等に突出部４０３等の補強リブを形成することが可能となり、低コストで十分な強度を得ることができる。
【００８９】
（６）交差部カバー４０の係合部を、例えば少なくとも側周縁を弾性樹脂材４０２で取り囲む構成等とすることにより、交差部カバー４０を圧入して設置する際に、弾性樹脂材４０２等がパネル２０の隅部周縁２０７と接触することになるので、交差部カバー４０を容易に嵌合して設置することが可能となり、簡単且つ確実に位置決めすることができる。また、交差部カバー４０の被係合領域やパネル２０等との適宜の接触箇所を、弾性樹脂材４０２等を用いて構成することにより、パネル２０等との接触においてガタツキ、及びガタツキ音の発生を防止することができる。
【００９０】
（７）パネル２０を、支持脚１０２を支持脚挿入孔２０３に挿入して設置することにより、或いは第２係合部４１２を係合孔２１１に挿入する係合構造等により、パネル２０相互を強固に結合し、簡単に且つ確実に位置決め固定することができる。
【００９１】
（８）図１４〜図１６に示す実施例のように、交差部カバー４０の弾性樹脂材４０２の突出部４０３ｍがパネル隅部周縁２０７相互間に係合し、且つその突出部４０３ｎの両側面がパネル２０の側辺相互間に係合する構成により、パネル隅部方向の４方向とパネル２０の直線配線溝の４方向との合計８方向で係合し、或いは交差部カバー部材４０の全周で係合することが可能となり、パネル２０相互で水平方向の位置ズレが発生することを確実に防止し、耐震性を向上することができる。
【００９２】
（９）複数のパネル２０を敷設した後に、交差部カバー４０を各パネル２０の隅部間の交差部にそれぞれ係合設置し、各パネル２０と各交差部カバー４０との係合を成す。そして、パネル隅部領域に於いて、パネル２０相互と交差部カバー４０を確実に係合して位置決めすることができ、更にはパネル２０相互を確実に位置決めすることができ、全パネル２０相互を安定して位置決めし固定することができる。
【００９３】
【発明の効果】
本発明に係る二重床構造を用いることにより、安価で且つ簡単な構成でカバーによりパネル相互を確実に位置決めすることが可能であり、所定レベルの耐震性を確保することができる効果を奏する。また、敷設された各パネルの隈部が集合箇所で、カバーによりパネル隅部相互の被係合領域に係合部で確実に係合するので、安定した強度が得られる効果を奏する。また、交差部カバーの係合部の係合により、係合部を弾性樹脂材を介してパネル隅部に接する構成とすることができ、ガタツキやガタツキ音の発生を防止することができる効果を奏する。また、パネルや、直線部、交差部カバーを簡単で安価な構成とすることが可能であり、又、カバーには比較的安価な樹脂材料を使用することができ、小型化が可能であり、容易に製造することができて、使用する材料を減らすこともできる。また、パネル、直線部、交差部カバーを簡単且つ確実に施工することが可能である。
【図面の簡単な説明】
【図１】第１実施形態の二重床構造の全体構成を示す斜視図。
【図２】第１実施形態に於けるパネル、交差部カバー、直線部カバーを示す平面説明図。
【図３】（ａ）は第１実施形態の直線部カバーの平面図、（ｂ）はその直線部カバーの正面図、（ｃ）はその直線部カバーの側面図。
【図４】第１実施形態の直線部カバーの開閉を説明する拡大平面図。
【図５】第１実施形態の直線部カバーの開閉を説明する拡大縦断側面図。
【図６】第１実施形態の直線部カバーの一部の裏面を示す斜視図。
【図７】（ａ）は第１実施形態の交差部カバーの平面図、（ｂ）はその交差部カバーの縦断正面図、（ｃ）はその交差部カバーのヒンジ部の側面図。
【図８】（ａ）は第１実施形態の交差部カバーの金属材の平面図、（ｂ）はその交差部カバーの金属材の縦断正面図。
【図９】（ａ）は第１実施形態の交差部カバーの樹脂材の平面図、（ｂ）はその交差部カバーの樹脂材の縦断正面図、（ｃ）はその交差部カバーの樹脂材のヒンジ部の縦断側面図。
【図１０】（ａ）は別の変形例の交差部カバーの平面図、（ｂ）は別の変形例の交差部カバーのＡ−Ａ線矢視縦断面図。
【図１１】（ａ）は別の変形例の交差部カバーの閉状態を示す縦断正面図、（ｂ）はその交差部カバーの開状態を示す縦断正面図。
【図１２】第１実施形態の直線部カバーと交差部カバーの閉状態に於ける二重床構造を示す部分斜視図。
【図１３】変形例の直線部カバーと交差部カバーの開状態に於ける二重床構造を示す部分斜視図。
【図１４】（ａ）は変形例の交差部カバーに於ける弾性樹脂材の裏面図、（ｂ）は変形例の交差部カバーに於ける弾性樹脂材の平面図、（ｃ）は変形例の交差部カバーに於ける弾性樹脂材のＢ−Ｂ線矢視縦断面図。
【図１５】図１４の交差部カバーの設置状態を示す平面図。
【図１６】図１４の交差部カバーの開状態に於ける二重床構造を示す部分斜視図。
【符号の説明】
２０パネル
２０１、２０２段部
２０７隅部周縁
２０８側周縁
２１１係合孔
３０直線部カバー
４０交差部カバー
４０１金属材
４０１ａ凸部
４０２弾性樹脂材
４０３、４０３ｍ、４０３ｎ突出部
４０３ａ凹部
４１１第１係合部
４１２第２係合部
５０配線通路[0001]
BACKGROUND OF THE INVENTION
  The present invention mainly relates to a free access floor in which wiring and the like can be drawn from a desired position, and more particularly to a double floor structure in which panels are supported on a floor surface and a cover is provided between the panels.
[0002]
[Prior art]
  In the technical field of the free access floor, a double floor structure in which a panel is supported by a supporting leg for use in a computer room and OA equipment is known, and various types of structures have been widely used up to the present day. In particular, since the existing floor slabs of buildings usually have unevenness, it is possible to adjust the height of the support legs and adapt to unevenness while adjusting the height of the support legs when laying the panel, Free access floor is being constructed.
[0003]
  A double floor structure having a height adjustment mechanism of this type of support leg is mainly composed of a support leg-integrated structure or a pillar-integrated structure in which the panel and the support leg are integrally fixed, and the panel and the support leg. Can be roughly divided into separate support leg separation type or strut separation type structures. For example, when installing a separate support leg type double floor structure with independent support legs on a floor slab with unevenness, the height of the support legs or columns is adjusted, and the panel surface is uniformly flat The work of laying down and laying panels is done at the site construction.
[0004]
  However, if the double floor structure that supports the panel with the support legs as described above is necessary to change the installation of wiring equipment, wiring transfer, etc. due to the layout change in the office after the construction of the double floor structure In addition, it is necessary to remove a large number of installed panels, and there is a disadvantage that the construction work at the time of such changes becomes large.
[0005]
  As a double-floor structure that eliminates such drawbacks, for example, linear or cross-shaped wiring passages or wiring grooves are formed between approximately square panels or where the corners of four panels are close to each other, and the upper surface opening is formed. 2. Description of the Related Art A wiring groove type double floor structure in which a cover is closed and the upper surface is flattened is known.Patent documents relating to such a double floor structure include, for example, <1> Japanese Utility Model Laid-Open No. 4-66248, <2> Japanese Utility Model Laid-Open No. 1-168741, <3> Japanese Utility Model Laid-Open No. 5-96281, <4> Real No. 7-587, <5> Japanese Patent Laid-Open No. 9-296592, <6> Japanese Patent Laid-Open No. 3-144060, <7> Japanese Utility Model Laid-Open No. 5-54736, <8> Japanese Utility Model Laid-Open No. 5-34237.
[0006]
[Problems to be solved by the invention]
  by the way,In the technical field of the free access floor,With simple construction,There is a strong demand for a double floor structure that can ensure a predetermined level of seismic resistance and prevent rattling.
[0007]
  The present invention has been made in view of the above problems, and has an inexpensive and simple configuration.ofcoverThePanel corner mutualInEngage and panelCover andReliable positioningFemaleIs possible,With simple construction,A certain level of seismic resistance can be secured,or,An object of the present invention is to provide a double floor structure capable of preventing the occurrence of rattling noises of panels and covers.
[0008]
[Means for Solving the Problems]
  In the double floor structure of the present invention, a support portion is disposed on the floor surface, a plurality of panels are supported and aligned by the support portion, and a cover is provided on an upper surface of a portion where the plurality of panel corners gather. It is a double floor structure, and is between the engagement portion of the elastic resin material provided on the back side of the cover and the substantially peripheral edge of the corner of the panel at the gathering location, or between the substantially peripheral edge and the substantially peripheral edge side An engaged region provided between the peripheral edges, and engages the engaging portion of the cover with the engaged region, and at least one panel corner at a collection point of the plurality of panel corners. The cover is detachably attached to the part, and a hinge mechanism is provided, so that the cover can be opened and closed by the hinge mechanism. It is preferable that the engaging portion is formed by covering a convex portion of a metal material provided projecting downward on the back side of the cover with an elastic resin material.
[0009]
  In the double floor structure of the present invention, the support portion is disposed on the floor surface, the plurality of panels are supported and aligned by the support portion, and the upper surface of the place where the plurality of panel corners gather is covered. A double floor structure,A metal material constituting the cover;SaidMetalAn elastic resin material provided on the back side ofSaidA first engaging portion and a second engaging portion which are formed of a metal material and protrude downward at different positions; an engaged region which is provided between substantially peripheral edges of the panel corner of the gathering location; An engaged portion formed in a predetermined region different from the engaged region at the corner of the panel, and so as to come into contact with the corner of the panelMetalThe elastic resin material is interposed between the back surface side and the panel corner, and the first and second engaging portions are engaged with the engaged region and the engaged portion, respectively. The cover is detachably attached to at least one panel corner at a collection point of the plurality of panel corners to provide a hinge mechanism, and the cover can be opened and closed by the hinge mechanism.
[0010]
  In addition, the double floor structure of the present invention,A double floor structure in which a support portion is disposed on a floor surface, a plurality of panels are supported and aligned by the support portion, and a cover is provided on an upper surface of a portion where the plurality of panel corners gather;A metal material constituting the cover;SaidMetalAn elastic resin material provided on the back side ofSaidA first engaging portion and a second engaging portion which are formed of a metal material and protrude downward at different positions; an engaged region which is provided between substantially peripheral edges of the panel corner of the gathering location; Engagement holes formed in the step portion of the panel corner, and so as to contact the panel cornerMetalThe elastic resin material is interposed between the back side of the panel and the corner of the panel, and the first and second engaging portions are engaged with the engaged region and the engaging hole, respectively. To do. In the double floor structure, a hinge mechanism is provided by detachably attaching the cover to at least one panel corner in the gathering position of the plurality of panel corners, and the cover can be opened and closed by the hinge mechanism. It is preferable.
[0011]
  In the double floor structure of the present invention, the support portion is disposed on the floor surface, the plurality of panels are supported and aligned by the support portion, and the upper surface of the place where the plurality of panel corners gather is covered. An elastic resin material engaging portion provided on the back surface side of the cover and formed with a tapered portion inclined inwardly downward at a lower portion, and the panel at the gathering location An engagement region provided between the substantially peripheral edges of the corners, or between the approximately peripheral edges and between the side peripheral edges in the vicinity of the approximately peripheral edge, and the engaged portions of the cover and the plurality of panel corners; It is characterized by engaging the joint region. In the double floor structure, a hinge mechanism is provided by detachably attaching the cover to at least one panel corner in the gathering position of the plurality of panel corners, and the cover can be opened and closed by the hinge mechanism. It is preferable.
[0012]
  In the double floor structure of the present invention, the support portion is disposed on the floor surface, the plurality of panels are supported and aligned by the support portion, and the upper surface of the place where the plurality of panel corners gather is covered. The first engagement portion of the elastic resin material protrudes downward on the back side of the cover, and the second engagement portion of the elastic resin material is provided in the first engagement. Projecting outward from the portion, forming a substantially peripheral edge of the panel corner in a shape by cutting off a corner of the panel corner, and between a substantially peripheral edge of the gathering location and a side peripheral edge in the vicinity of the substantially peripheral edge. An engaged area is provided, and the first engaging portion and the second engaging portion are arranged such that the first engaging portion is in contact with the substantially peripheral edge and the second engaging portion is in contact with the side peripheral edge. An engaging portion is engaged with the engaged region. In the double floor structure, a hinge mechanism is provided by detachably attaching the cover to at least one panel corner in the gathering position of the plurality of panel corners, and the cover can be opened and closed by the hinge mechanism. It is preferable.
[0013]
  In the double floor structure of the present invention, the support portion is disposed on the floor surface, the plurality of panels are supported and aligned by the support portion, and the upper surface of the place where the plurality of panel corners gather is covered. A double floor structure is provided, wherein a substantially peripheral edge of the panel corner is formed in a shape obtained by cutting off a corner of the panel corner, and an engaged region is provided between the substantially peripheral edges of the gathering location, A plurality of convex portions projecting downward at predetermined positions corresponding to substantially the peripheral edges of the respective panel corners are formed on the metal plate of the cover, the convex portions are covered with an elastic resin material, and the projecting portions are formed on the back side of the cover. And the protrusion is engaged with the engaged region. In the double floor structure, a hinge mechanism is provided by detachably attaching the cover to at least one panel corner in the gathering position of the plurality of panel corners, and the cover can be opened and closed by the hinge mechanism. It is preferable.
[0014]
Further, the double floor structure of the present invention is provided in the vicinity of two adjacent sides of the panel so as to be able to open and close a linear part cover different from the cover provided at the gathering location of the panel corner, and on the back surface of the linear part cover. A protrusion is formed between the adjacent panels. Further, the double floor structure of the present invention is characterized in that the cover is configured by providing a metal material on the upper surface side of an elastic resin material that is hollow inside and opens on the upper surface side.
[0015]
[Action]
  The double floor structure of the present invention is configured to securely position the cover and the corners of the panel by engaging the engaging portion constituted by the elastic resin material and the engaged region, and the installed cover. It is possible to prevent positional deviation from the panel, and to ensure a predetermined level of earthquake resistance. Also,By engaging the first and second engaging portions with the engaged region and the engaged portion or the engaging hole,Positioning and fixing the cover and panel corners securely, the installed cover and panel And a very high level of seismic resistance can be ensured. In addition, construction work such as positioning according to the present invention can be performed easily and reliably, and further, the influence of misalignment or the like on construction can be minimized.
[0016]
Further, the engagement portion is made of an elastic resin material, or an elastic resin material is interposed between the back surface side of the cover and the panel corner portion so as to be in contact with the panel corner portion, thereby preventing rattling noise. Can do. Moreover, the cover provided in the gathering location of a panel corner part can be made into a cheap and simple structure. In addition, a cover is detachably attached and a hinge mechanism is provided, and the cover can be opened and closed by the hinge mechanism, so that the cover can be opened and closed easily and wiring can be easily laid and transferred. It is possible to prevent the cover from being removed and lost.
[0017]
  In addition, by forming a tapered portion that is inclined inwardly downward at the lower portion of the engaging portion of the elastic resin material, the engaging portion and the engaged region can be easily engaged. In addition, since the engaging portion and the engaged region can be engaged by press-fitting the tapered portion, the positioning between the cover and the panel corner can be strengthened.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
  Below, embodiment of the double floor structure of this invention is described. 1 to 9 areFirstFIG. 1 is a perspective view showing an overall configuration of a double floor structure, FIG. 2 is a plan explanatory view showing a panel, an intersection cover, and a straight part cover, and FIGS. 3 to 6 are straight parts. FIGS. 7 to 9 are diagrams relating to the cover, and FIGS.
[0019]
  [FirstEmbodimentAnd its variantsExplanation]
  The double floor structure of the first embodiment is mainly an engagement portion in which an elastic resin material 402 is covered by a protruding portion 401a of a protruding portion made of a metal material protruding downward on the back surface of the intersection cover 40. And when the intersection cover 40 is installed on the upper surface of the location where the panel corners are gathered, the engagement portion is provided at the corner gathering location of the panel 20. The elastic resin material 402 of the part is in contact with the panel corner of the engaged area, and the engaging part is engaged with the engaged area, and the panel corners and the intersection cover 40 are coupled to each other. The corners of the panel 20 are positioned by the intersection cover 40.
[0020]
  FirstAs shown in FIGS. 1 and 2, the double floor structure of the embodiment is a floor panel with a separate support leg, and a support leg unit 10 whose height is adjustable as a predetermined support portion is disposed on the floor surface. The support leg unit 10 is provided with four support legs 102 arranged upright at substantially corners of a substantially square base 101, and a panel 20 of a square floor board is supported by the support legs 102 and laid. Yes. A wiring passage 50 is formed below the panels 20 such as between the supporting legs 102 arranged in the supporting leg unit 10, and the wiring passage 50 is formed between the panels 20 in the form of a lattice continuously in the vertical and horizontal directions. The linear portion cover 30 is covered by the upper surface opening of the straight portion, and the intersection portion cover 40 is covered by the upper surface opening of the intersection portion. As shown in FIG. 1, the support leg unit 10 includes a base 101 laid on the floor and a support leg 102 at a certain interval so that the above-described wiring passage 50 is formed on the base 101. Are standing up and configured.
[0021]
  Each support leg 102 includes a height adjustment mechanism 103. The height adjustment mechanism 103 has a nut leg 103a screwed into a bolt leg 103a threaded into a substantially upper half or the like, and a side periphery ( Alternatively, a substantially ring-shaped panel receiving portion 103c that supports a corner portion of the panel 20 to be described later is formed on the bottom portion or the upper portion. The nut portion 103b has an opening 103d into which a nut turning tool can be inserted, such as a hexagonal opening into which a hexagon wrench can be inserted. The nut portion is inserted into the opening 103d by inserting a wrench. 103b is rotated to turn the screw, the nut portion 103b is moved up and down, the height of the panel 20 supported by the panel receiving portion 103c is adjusted from above, the floor surface is adjusted for unevenness, and the panel surface is flattened. The height can be easily adjusted.
[0022]
  As shown in FIGS. 1 and 2, the panel 20 is a substantially rectangular plate material, and the corner shape is formed by cutting off the tip of the corner, and the linear portion cover 30 described above is provided in the vicinity of the four side edges. A step portion 201 for receiving the intersection portion cover 40 is also formed in the vicinity of the peripheral edge of the corner portion, and a step portion 202 for receiving the intersection cover 40 is formed continuously around the entire periphery. , 202 are formed.
[0023]
  Further, in order to receive the bottom surface of the panel 20 by the panel receiving portion 103c and to support the panel 20 by the supporting legs 102, support leg insertion holes 203 for inserting the nut portions 103b of the supporting legs 102 are provided at the four corners of the panel 20. It has been. The support leg insertion hole 203 has a size such that, for example, the nut 103b can be substantially inserted or loosely inserted. As described above, the panel 20 is supported by the support leg unit 10 and the like.so,Panel 20 mutualTieThe position of the panel 20eyesIt can be done easily and reliably.
[0024]
  The panel 20 may be made of an arbitrary material such as a metal, a steel, a concrete, a composite of metal and concrete, such as a steel plate filled with a reinforcing material such as concrete. It can be configured appropriately by applying various materials, materials, and shapes such as hollow, hollow, and reinforcing lip. Also, the size can be appropriately formed in an arbitrary size such as a square of 500 mm to 600 mm.
[0025]
  In the panel 20,As shown in FIG. 2, a hinge engaging hole 204 for engaging a hinge portion 301 of a linear portion cover 30 (to be described later) constituting the hinge structure is provided in the vicinity of the peripheral edges of two adjacent sides of the panel 20. 201 is formed inside. In addition, a hinge engaging hole 205 to be engaged with a hinge portion 403 of an intersection cover 40 described later is provided at one of the four corners of the panel 20 at a position closer to the periphery than the support leg insertion hole 203. It is formed inside the portion 207.
[0026]
  Further, as shown in FIG. 2, when the straight part cover 30 is opened at different positions different from the support leg insertion holes 203 on the two sides constituting the hinge structure of the straight part cover 30. In order to maintain the open state, a locking hole 206 for locking a locking portion 302 of the linear portion cover 30 described later is formed.
[0027]
ExchangeThe difference portion cover 40 is made of a metal material 401 that protrudes downward on the back surface thereof.ConvexEngagement area where the engaging portion is formed by covering the portion 401a with the elastic resin material 402 and engaging the engaging portion.But,Provided so that the elastic resin material 402 is interposed in the corner of the panelIsWhen the intersection cover 40 is installed on the upper surface where the panel corners gather, the elastic resin material 402 of the engaging portion is the engaged region.Is engaged, The corners of the panel 20ButPositioning at the intersection cover 40To be.
[0028]
  As shown in FIG. 7 to FIG.It is an octagon in plan viewA substantially plate-like metal material 401 is used as a base, and an elastic resin material 402 is covered on the substantially lower surface of the metal material 401. The metal material 401 and the elastic resin material 402 are integrated and integrated, Formed in a polygonal or nearly circular shapeIt is. Of this exampleThe metal material 401 is made of, for example, a metal plate such as a steel plate and has a plate-like substantially octagonal shape. The upper surface of the metal material 401 is flat, and a plurality of claw-shaped protrusions 401a are provided on the back surface side. The convex portion 401a is provided with cuts at four predetermined positions and bent downward.
[0029]
  The projection 401a of the metal material 401 isLe 2Engage indirectly with the 0 corner rim 207 via the elastic resin material 402ConstitutionOr, to reinforce the engagement with the corner peripheral edge 207 of the elastic resin material 402It is the structure provided. The convex portion 401a of the metal material 401 is formed on the panel 2 as in this example.It is preferable to provide it corresponding to the number of corners of 0 corners.For example, the number of the panels 20 may be provided corresponding to the corners of the panel so as to indirectly engage with the peripheral edge 207 of the corners of the panels 20 to be assembled.In addition, the convex part 401a provided in the metal material 401 is formed by press punching and bending when it is made of, for example, a steel plate.Be.
[0030]
  The elastic resin material 402 is made of hard rubber.OrOr soft resin materialEtc.The outer shape is formed, for example, by integral molding such as injection molding, and the outer shape is substantially the same shape slightly larger than the metal material 401 or substantially the same size. An annular and cross-shaped projecting portion 403 having a reinforcing function is formed on the rear surface side so as to project downward, and is inserted into the rear surface side of the metal material 401 so that it can be engaged or fitted in the projecting portion 403. A concave portion 403a for engaging or inserting the convex portion 401a is formed corresponding to the convex portion 401a. And the protrusion part 403 by which the convex part 401a was inserted by the said recessed part 403aIs in chargeA fitting portion or a fitting portion is formed, and the metal material 401 and the elastic resin material 402 are not easily separated by the fitting structure.
[0031]
  The protruding portion 403 is provided with a tapered portion inclined inwardly downward at the lower portion thereof.Le 2Between the corner rims 207 of 0In the engaged areaEach panel which is press-fitted by the taper portion and is engaged and installed by engaging and installing the intersection cover member 40Le 2The corner of 0 is firmly positionedMesaIt is.
[0032]
  Further, a hinge portion 404 is formed to protrude laterally at a predetermined portion such as one side or one side of the elastic resin material 402, and is formed integrally with the elastic resin material 402, for example. Similar to the hinge part 301 of the linear part cover 30, the hinge part 404 is formed so as to protrude downward and a bent part 404 a that bends when the intersection cover 40 is rotated to open and close. And it has the substantially protrusion or convex-shaped hinge engaging part 404b detachably engaged with the hinge engaging hole 205 of the panel 20, The hinge provided in one corner part among the four corners of the panel 20 A hinge engaging portion 404b is engaged with the engaging hole 205 to constitute a hinge structure.
[0033]
  The bent portion 404a is made of, for example, a thin connecting member or a member formed with a cut, but is appropriate as long as the intersecting portion cover 40 can be opened and closed, and the hinge engaging portion 404b of the present embodiment is In order to facilitate attachment and detachment by an elastic force, it is formed in two substantially arrow shapes having split grooves. In addition, the shape of the hinge part 404 and the hinge engaging part 404b can be made into arbitrary shapes. For example, as shown in FIGS. And so on.
[0034]
  The intersection cover 40 integrated by inserting the convex portion 401a into the concave portion 403a is an engaging portion in which the convex portion 401a is inserted into the concave portion 403a at the gathering location where the corner portions of the panel 20 gather. Alternatively, the fitting portion is engaged or fitted in an engaged region or a fitted region constituted by the corner peripheral edges 207 of the panels 20 at the gathering location, and is engaged with the corner peripheral edges 207 of the four panels 20. The outer peripheries of the mating part or the fitting part are in contact with each other, and the bottom surface of the elastic resin material 402 located on the outer peripheral side from the engaging part is placed on the upper surface of the step part 202 at the corner of each panel 20 to determine the position.MesaIt is. Further, the intersection cover 40 is installed by engaging the hinge engaging portion 404b with the hinge engaging hole 205 provided at one corner of the four corners of the panel 20.
[0035]
  ExchangeIn the engaging portion of the difference portion cover 40, for example, an elastic resin material 402 is provided so as to surround or surround the side peripheral portion, and the engaging portion is provided with the four panels 20.ofBy engaging the engaged area of the corner peripheral edge 207 via resin, ClerkThe engagement portion is not too tight or too loose.Sex treeIt is possible to press-fit the fat part and securely engageIt is. AndPositioning of the intersection cover 40 by using the engaging portion as a stoppereyesIt can be performed easily and reliably, and predetermined earthquake resistance can be obtained.
[0036]
  In addition, the elastic resin material 402 fits into the corner peripheral edge 207 or the stepped portion 202 of the panel 20 and functions as a buffer material, and can prevent rattling noise caused by the metal material 401. In other words, the panels 20 are fixedly supported by the support legs 102 erected on the support leg unit 10, and the corners 202 of the four panels 20 are pressed from above by the intersection cover 40, and the intersection cover 40. Due to the synergistic effect of the configuration in which the engaging portion or the fitting portion of the panel 20 is engaged or fitted in the vertical direction to the engaged region or the fitted region constituted by the corner peripheral edges 207 of each panel 20 at the gathering location, The displacement and movement of the panel 20 in the horizontal direction and the like can be restricted, and an earthquake resistance effect can be obtained.
[0037]
  In the above example, the elastic resin material 40 in which the protruding portion 403 having a cross shape formed on the inner side of the substantially octagonal ring is provided to protrude downward.2Are arranged on the intersection cover 40, and each of the projecting portions 403 constituting the engaging portion or the fitting portion is arranged so that the substantially octagonal four sides of the projecting portion 403 are in contact with the corner peripheral edge 207 of the panel 20, respectively. Although the configuration has been described in which the intersection cover 40 is engaged with the engaged region formed by the corner peripheral edges 207 of the panel 20 and the intersection cover 40 is installed at a substantially gathering position at the corner of the panel 20, for example, FIGS. It is good also as a structure of the modification shown in FIG.
[0038]
  14 is a view showing the elastic resin material 402 in the crossover cover 40 according to the modification, FIG. 15 is a plan view showing the installation state of the crossover cover 40 according to the modification, and FIG. FIG. 5 is a partial perspective view showing a double floor structure in a state where the panel 20 is installed at the corner of the panel 20 and the cover 40 is opened.
[0039]
  As shown in FIGS. 14 to 16, the cover member 40 according to the present modification has a substantially octagonal first protrusion 403 m and a substantially octagonal first protrusion 403 m when viewed from the back, and a rear surface that projects outward from the substantially four sides of the octagon. A rectangular second protrusion 403 n has an elastic resin material 402 protruding downward, and a metal material 401 is provided on the upper surface side of the elastic resin material 402. The metal material 401 is substantially the same as the metal material 401 shown in FIG. 8 described above, and has a common mounting structure for fitting the convex portion 401a into the concave portion 403a of the elastic resin material 402. And illustration is abbreviate | omitted.
[0040]
  The elastic resin material 402 has a substantially octagonal outer shape in plan view, and as described above, the first projecting portion 403m having a substantially octagonal shape in the rear view and the back surface projecting outward from the substantially octagonal four sides. A second projection 403n that is substantially square in shape is formed to project downward, and the second projection 403n extends from the first projection 403m and is integrally formed with the first projection 403m. And the protrusion part comprised by the 2nd protrusion part 403n is substantially cross shape by the back view.
[0041]
  The inside of the first protrusion 403m and the second protrusion 403n is hollow or hollow, and the upper surface side is open, and the peripheral wall portion is formed with an appropriate thickness. Further, as shown in FIGS. 14B and 14C, a large number of reinforcing ribs 407 are provided so as to intersect with each other in a substantially cross-beam shape or a substantially lattice shape inside the first protrusion 403m. The reinforcing rib 407 and its installation form are appropriate as long as the structure can improve the strength, for example, in a radial manner.
[0042]
  As described above, the structure in which the protrusions 403m and 403n having appropriate thicknesses are provided and the reinforcing ribs 407 are provided therein can reduce the resin material, reduce the weight, reduce the cost, etc. during the resin molding. At the same time, it is possible to ensure sufficient strength and durability of the elastic resin material 402. Further, the metal material 401 is formed by combining the metal material 401 and the elastic resin material 402 to form the combined intersection cover 40. In combination with the strength of the elastic resin material 402, sufficient strength and durability can be ensured for the intersection cover 40.
[0043]
  In addition, the elastic resin material 402 includes a hinge portion 404 constituted by a bent portion 404a and a hinge engaging portion 404b, similar to the elastic resin material 402 of FIGS. The elastic resin material 402 is provided to protrude outward from one side of the octagon, and the concave portion 403a into which the convex portion 401a of the metal material 401 is fitted is provided on the upper surface side, and the concave portion 403a is the first protruding portion. It is formed inside the four sides of a substantially octagonal 403 m.
[0044]
  Then, in the double floor structure as shown in FIGS. 15 and 16, the first protrusion is formed in the engaged region constituted by the corner peripheral edge 207 of the panel 20 and the side peripheral edge 208 in the vicinity of the corner peripheral edge 207. The intersecting portion cover 40 is installed by engaging the projecting portion composed of the portion 403m and the second projecting portion 403n. Similarly to the above-described example, the intersection cover 40 is provided by engaging the hinge engaging portion 404b with the hinge engaging hole 205 formed in one corner of the gathered panels 20. It is done.
[0045]
  In the engagement installation state of the intersection cover 40, each of the four sides of the substantially octagonal first projection 403m where the second projection 403n is not formed and the metal material 401 provided inside the four sides. The convex portions 401a are in contact with or engaged with the corner peripheral edges 207 of the four panels 20, respectively, and the outer side surfaces or side peripheral walls on both sides of the substantially square second projection 403n 20 is in contact with or engaged with the panel side peripheral edge 208 in the vicinity of the corner peripheral edge 207, in other words, the protruding part constituted by the first protruding part 403m and the second protruding part 403n. Is engaged or fitted into the engaged region as an engaging portion, and is engaged or fitted from the panel peripheral edge 207 to the side peripheral edge 208 near the corner peripheral edge 207.
[0046]
  As described above, the intersection cover 40 is engaged from the corner peripheral edge 207 of the panel 20 to the side peripheral edge 208 of the straight portion near the corner peripheral edge 207 or from the intersection area of the corner of the panel 20 to the side. The first protrusions 403m and the second protrusions 403n that engage with the side straight line region are provided as the engagement parts, and the corner peripheral edge 207 and the vicinity of the corner peripheral edge 207 of the plurality of panels 20 to be laid are provided. By installing the intersection cover 40 in the engaged area between the side peripheral edges 208 by engaging, the multiple intersection cover 40 is installed in a large and uniform manner in a large number of engaged areas. In addition, the installation of the intersection cover 40 with high stability and the high earthquake resistance of the double floor structure can be achieved with a simple configuration at low cost.
[0047]
  That is, the engagement of the intersection cover 40 between the first protrusion 403m and the corner peripheral edge 207 and the side of the second protrusion 403n and the upper portion of the linear wiring passage 50 in the vicinity of the corner peripheral edge 207. Engagement between the circumferential lines 208 can be combined to obtain a stable and strong engagement force and fitting force, and can regulate the horizontal movement of the intersection cover 40 in the horizontal and vertical directions and can be firmly positioned and fixed. Therefore, positional deviation and backlash can be suppressed and prevented, and high earthquake resistance can be ensured. Further, the structure in which the intersection cover 40 is pushed from above into the engaged area or the intersection space in the corner gathering position of the panel 20 to close and restrict the horizontal movement of the panel 20 in the vertical and horizontal directions, and is strong. Therefore, it is possible to suppress and prevent positional deviation and backlash of the panel 20, and to secure high earthquake resistance.
[0048]
  The intersection cover 40 is the same as that in the above embodiment.Or the above variantThen, the separate metal material 401 and the elastic resin material 402 are fitted and inserted so as not to be easily detached, but may be integrally formed by insert molding or the like, for example.In addition, the firstEmbodimentOr the above variantThenOf metal material 401Although an example in which the convex portions 401a are all covered with the elastic resin material 402 or the like has been shown, it is not always necessary. For example, the convex portion 401a side excluding the tip at a location in contact with the corner peripheral green 207 (not shown) You may form so that only a surrounding part may be surrounded by the elastic resin material 402 grade | etc.,.
[0049]
  Further, the engagement portion on the back surface of the intersection cover 40 can be formed of at least the elastic resin material 402. For example, the engagement portion formed on the back surface of the intersection cover 40 with the elastic resin material 402 can be used. And the engagement portion engages with the substantially peripheral edge 207 of the gathering location of the panel corner. An engagement region is provided, and when the intersection cover 40 is installed on the upper surface of the place where the panel corners gather, the engagement portion of the elastic resin material 402 is brought into contact with the substantially peripheral edge 207 of the engaged region. In addition, the corners of the panel 20 and the intersection cover 40 may be combined, and the corners of the panel 20 may be positioned by the intersection cover 40.
[0050]
As the metal material 401, a steel material, an aluminum material, or the like can be used as appropriate., BulletAs the flexible resin material 402, a soft or hard rubber material, polypropylene (PP), ABS, vinyl resin, or other soft or hard resin can be used as appropriate, and the function of automatically returning by its elastic force or Any device having an anti-rattle function may be used, but both are preferably obtained.
[0051]
  In addition, when the intersection cover 40 is used, a plurality of panels 20 supported by the support leg unit 10 are arranged on the floor surface at predetermined intervals so as to form a predetermined linear portion and a wiring passage 50 at the intersection. The wiring path 50 formed between the panels 20 is provided with an intersection cover 40 on at least the upper surface of the intersection, or the panel 20 is arranged in close contact and the intersection cover 40 is provided at the intersection. These are also included in the present invention. Whether or not a wiring passage is formed between the separated panels 20, the panel 20 can be firmly connected to each other, and the crossover cover 40 can be positioned reliably.,An effect of preventing rattling noise and ensuring predetermined earthquake resistance can be obtained.
[0052]
  on the other hand,Of the first embodimentAs shown in FIGS. 1 to 6, the straight part cover 30 has a substantially rectangular plate shape, and the straight part cover 30 provided on each of the two adjacent sides of the panel 20 has a common shape. The hinge part 301 is formed to protrude laterally, and the hinge part 301 is attached to and detached from a bent part 301a that is bent when the linear part cover 30 is rotated to open and close, and the hinge engaging hole 204 of the panel 20. It has a substantially protruding hinge engaging portion 301b that is freely engaged.
[0053]
  The bent portion 301a is made of, for example, a thin connecting member or a member formed with a cut, and is appropriate as long as the linear portion cover 30 can be opened and closed.FirstThe hinge engaging portion 301b of the embodiment is formed in two substantially arrow-shaped shapes having split grooves so as to be easily attached and detached by elastic force.
[0054]
  The shapes of the hinge part 301 and the hinge engaging part 301b can be arbitrary shapes. For example, the shape of the hinge part 301 and the hinge engaging part 301b is appropriate, for example, a substantially arrow shape in a side view as well as a substantially arrow shape in a front view.
[0055]
  On the other long side, as shown in FIGS. 4 to 6, a substantially tongue-like locking portion 302 having a plurality of return portions 302 a provided in a wavy shape on the back surface is formed, and the linear portion cover 30 is opened. At this time, the return portion 302a such as the tip of the locking portion 302 is locked in the locking hole 206 of the panel 20, so that the open state of the linear portion cover 30 is maintained.
[0056]
  When the return portion 302a is formed in the locking portion 302 as described above, the locking portion 302 is locked to easily maintain the open state of the linear portion cover 30, and the locking is released to easily close the linear portion cover 30. Although it is possible and suitable, the locking portion 302 is appropriate as long as the locking portion 302 can be easily released. For example, the locking portion 302 returns to the locking portion 302.aIt is also possible to adopt a configuration in which no is formed. In addition, it is preferable that the engaging portion 302 has a configuration having elasticity.
[0057]
  Further, as shown in FIG. 3, a protrusion having a function of preventing misalignment is provided on the back surface of the linear portion cover 30 so that the straight portion cover 30 is securely fitted and positioned between the panels 20 and between the step portions 201 near the side periphery. A portion 303 is formed on both sides in a substantially longitudinal direction, reinforcing ribs 304 are formed between the protruding portions 303 on both sides, and the surface thereof is formed to be substantially flat.
[0058]
  still,As a variation,As shown by a two-dot chain line in FIG. 13, the shape of the protrusion 303 can adopt an appropriate configuration such as a pair of claw-shaped protrusions 303a protruding downward at predetermined positions on both sides of the lower surface. The pair of claw-like projections 303a may be further formed on the projection 303 formed in the substantially longitudinal direction.
[0059]
  Further, for example, if slit-like openings 305 are provided between the reinforcing ribs 304 or the protrusions 303 on the upper surface of the straight part cover 30, wirings and wiring devices laid under the straight part cover 30 can be visually observed. It is easy to confirm and is good. In addition, by providing the openings 305 between the reinforcing ribs 304 or between the protrusions 303, even if a large number of openings 305 are provided, there is no problem in strength, which is preferable.
[0060]
  The claw-like protrusions 303a can be provided as a set or a plurality of sets with a predetermined interval. With such protrusions 303 and 303a, the linear portion cover 30 can be positioned and installed reliably, and the earthquake resistance can be improved. The straight part cover 30 is provided, for example, on the adjacent two sides of one panel 20 or on the periphery thereof.
[0061]
  [Description of other modifications]
  Where anotherDeformationAn example intersection cover 40 will be described.The intersection cover 40 according to another modification is provided with a first engagement portion 411 and a second engagement portion 412, and an elastic resin material 402 on the back surface thereof. In addition, an engaged region for engaging the first engaging portion 411 is provided in a substantially predetermined upper surface region at a corner of the panel 20, and the second engaging portion 412 is engaged in a predetermined upper surface region different from the substantially predetermined upper surface region. An engaged portion is formed, and the elastic resin material 402 is formed when the first engaging portion 411 and the second engaging portion 412 are engaged with the engaged region and the engaged portion, respectively. Are arranged so as to be in contact with the corners of the panel 20 on the back side of the intersection cover 40, and the corners of the panel 20 are positioned and fixed by the intersection cover.
[0062]
  More specifically,AnotherDeformationAs shown in FIGS. 10 and 11, the crossover cover 40 of the example is formed of a metal material 401 made of steel plate or the like in a substantially octagonal plate shape, and the surface side is formed flat, Four spring-like first engaging portions 411 protrude downward and are formed at predetermined positions on the inner side of the rear surface side, and are formed at three locations near the outer peripheral edge on the rear surface side, which are different positions from the first engaging portion 411. A claw-like second engaging portion 412 is formed to protrude downward. The first engagement portion 411 is formed by, for example, drawing press processing or the like, and the second engagement portion 412 is formed by, for example, punching or bending processing. Further, the elastic resin material 402 is polymerized on the back surface other than the first engaging portion 411 and the second engaging portion 412, and the elastic resin material 402 is provided with a hinge portion 404 that protrudes to the side in the same manner as described above. The hinge portion 404 has a bent portion 404a and a hinge engaging portion 404b.
[0063]
  In the same manner as described above, the elastic resin material 402 may be provided so as to cover a predetermined portion such as the side periphery or the whole of the first engaging portion 411 and the second engaging portion 412. On the other hand, step portions 202 are formed at the corners of the four panels 20 in the same manner as described above, and the second engagement portions 412 are formed at the inner end positions of the step portions 202 of the three panel 20 corners. An engaging hole 211 is formed, and a hinge engaging hole 205 is formed at the corner of one panel 20 in the same manner as described above. In addition, it is preferable that the engagement hole 211 is formed slightly larger than the second engagement portion 412 so that the second engagement portion 412 can be easily engaged.
[0064]
  The intersection cover 40 is attached to the hinge engaging hole 205 by engaging the hinge engaging portion 404b of the hinge portion 404 at the corner of the panel 20 and is formed by the corner peripheral edges 207. The first engagement portion 411 is engaged with the engaged region, and the first engagement portion 411 having elasticity or spring property is pressed against the corner peripheral edge 207, and the engagement hole 211 of the panel 20 has a claw shape. The second engaging portion 412 is inserted and engaged. The intersection cover 40 is positioned and fixed in a state where it is placed on the upper surface of the stepped portion 202 via the elastic resin material 402 on the bottom surface. In this positioning and fixing, the corners of the panel 20 are also engaged with the intersection cover 40. Combined with each other.
[0065]
  Then, the corners of the four panels 20 are joined by the intersection cover 40 by the engagement of the first engaging portion 411 and the second engaging portion 412, and further, the first engaging portion 411 and the engaged region are joined. And the engagement with the second engagement portion 412 and the engagement hole 211 act so as to sandwich the portion of the panel 20 located therebetween, and exhibit a synergistic effect to produce the synergistic effect. Thus, the corners of the panel 20 can be firmly coupled to each other, positioning and fixing can be performed easily and reliably, and predetermined earthquake resistance can be obtained.
[0066]
  Here, the side periphery of the panel corner,OrSince there is the first engaging portion 411 that engages or fits in contact with the peripheral edge 207, the second engaging portion 412 is easily engaged with the engaging hole 211. It is possible to make the hole 211 slightly larger, and it is possible to eliminate the problem that the fitting structure in the prior art is too loose or too tight, and the engagement in the first and second engaging portions 411 and 412 is possible. Due to the synergistic effect of the structure, the cover 40 can be installed and fixed at the corners of the panel 20 reliably and stably.
[0067]
  still,the aboveAnother variantIn the example, the elastic resin material 402 is pasted on the bottom surface of the metal material 401 in the intersection cover 40 and superposed, but the present invention is not limited thereto, and the same applies to the straight cover 30. In addition, an elastic resin material may be pasted on the bottom surface of the metal plate and superposed to provide a configuration in which the strength of the cover can be further improved.
[0068]
  Another variant aboveSince the intersection cover 40 is placed on the corner of the panel 20, for example, the upper surface of the step 202, via the elastic resin material 402 attached to the bottom surface of the metal material 401, the elastic resin material 402 serves as a cushioning material. For example, it is possible to prevent rattling noise caused by the metal material 401 during walking.
[0069]
  [The double floor structure of the first embodiment and its modificationExplanation of construction method]
  next,FirstThe construction method of the double floor structure of the embodiment will be described.
[0070]
  First, a marking line for positioning for standing the support leg unit 10 is drawn on the floor surface of the slab according to the laying area, size and shape of the room. Inking is performed in consideration of the laying position of the panel 20, the position of the wiring passage 50, and the like. Then, the support leg units 10 are installed at predetermined intervals at the standing position of the support chest unit 10 where the inking line is drawn. At this time, when the height adjusting mechanism 103 is provided, the height adjusting operation is performed, and the positional relationship between the position of the panel 20 and the wiring passage 50 is specified thereby. Thereafter, the panel 20 is laid between the support leg unit 10 or the support legs 102.
[0071]
  1st Embodiment and its modificationThen, one panel 20 is laid on the four support leg units 10, and the four corners of the panel 20 other than the end portions are respectively butted or adjacent to the flanges of the panel 20 laid adjacently, Let them gather together. ThisFor exampleAs shown in FIG. 1, only the wiring passage 50 is formed with an upper opening, and the panel 20 is laid out in an orderly manner leaving the wiring passage 50. In addition, when it is necessary to install a main line such as a main trunk line and a wiring device, an electric wiring company precedes the installation of the panel 20 and performs the installation and wiring.
[0072]
  afterwards,For exampleAs shown in FIGS. 12 and 13, the straight portion cover 30 and the intersecting portion cover 40 are respectively installed between the panels 20 and between the corner portions of the panel 20. Since each cover 30, 40 has hinge portions 301, 404 constituting a hinge structure that can be opened and closed, the cover 30, 40 is attached and fixed by engaging with the engagement holes 204, 205 on the panel side. , 40 is installed.
[0073]
  Here, when the intersection cover 40 is installed at the corner of the panel 20, the panel 20 is supported by the support leg unit 10, and the corner peripheral edge 207 of the panel 20 and the engagement portion of the intersection cover 40. Alternatively, the corners of the panel 20 are coupled to each other by the engagement with the first engagement portion 411, and the intersection cover 40 is engaged to determine the position.MesaIt is. The panel 20 is stably fixed and supported regardless of the installation state of the straight part cover 30.
[0074]
  Thereafter, a finishing material is laid on the panel 20, the straight part cover 30, and the intersecting part cover 40 as the final finish. The border processing around walls and pillars will be omitted.
[0075]
  Next, a case will be described in which a layout or wiring needs to be changed after installation of a double floor structure, and a new wiring laying or wiring equipment is installed.
[0076]
  In this case, since the linear part cover 30 and the crossing part cover 40 are configured to be opened and closed by the hinge structure of the hinge parts 301 and 404 in order, the covers 30 and 40 at arbitrary positions are opened. By the turning operation at this time, the intersection cover 40 is arranged so that the upper surface of the intersection cover 40 comes to the upper surface side of the corner vicinity region of the panel 20 so as to maintain the open state.
[0077]
  In addition, by the turning operation, the straight portion cover 30 is installed so that the upper surface of the straight portion cover 30 comes to the upper surface side of the side periphery green region of the panel 20. The wiring passage 5 is kept open by being locked in the locking hole 206 on the upper surface side.
[0078]
  By opening the covers 30 and 40 as described above, for example, as shown in FIG. 13, the upper surface of the wiring passage 50 is continuously open, and the wirings can be dropped and laid from above. it can.
[0079]
  In addition, when it is desired to raise the laid wiring on the floor, as shown in FIG. 3, the wiring can be raised and retracted from a substantially U-shaped knockout opening portion of the straight portion cover 30 in plan view. If you want to put up a large number of installed wirings on the floor in large quantities, the cover 30 is made of resin, so a part of it, for example, the reinforcing rib 304 is left, and an arbitrary position and area can be cut with a cutting tool. It is possible to start the wiring by cutting.
[0080]
  Further, as described above, the hinge cover portion 205 of the panel side corner portion and the hinge portion 404 of the cross portion cover 40, which are configured to be detachable, allow the cross portion cover 40 to be detached to form an opening, from which the opening is formed. It is also possible to set up a large number of installed wirings on the floor.
[0081]
  Furthermore, when it is impossible to install wirings or wiring fixtures from the opening of the wiring passage 50, each cover 30, 40 maintains an open state. An operator can put a hand and pull up the panel 20 to expose the lower part of the panel 20 to easily install wirings and the like.
[0082]
  For example, if at least two adjacent straight part covers 30 maintain an open state with respect to one panel 20, it is easy for an operator to put in his hand and pull up the one panel 20 it can. At this time, since the two linear portions covers 30 on the opposite sides are not engaged and attached, the panel 20 can be easily detached or removed regardless of whether or not it is in the open state.
[0083]
  stillThe figure1, Figure 2,Figure12,Figure13, the straight line cover 30 and the crossing cover 40 are arranged on the panel in such a manner that two straight line cover 30 is provided on two adjacent sides of the panel 20, and one crossing part is provided at the panel corner between the covers 30. Cover 40Attached to the panel 20An example was provided. However, the present invention is not limited to this, and two straight part covers 30 are adjacent to one panel 20 on the adjacent side.Is providedOne of the intersecting portion covers 40 is detachably installed by engaging the engaging portions and hinge portions 301 and 404 at the opposite corners of the panel 20 between the straight portion covers 30. May be. In this case, since the two linear part covers 30 and the one intersection part cover 40 are provided at positions that are not close to each other and are separated from each other, there is no interference between the covers when the hinge structure is opened and closed, and each can be opened and closed individually. Thus, the hinge can be opened and closed smoothly.
[0084]
  [Effect of the double floor structure of the first embodiment and its modification]
  Double floor structure of the first embodiment and its modificationHas the following main effects.
(1) The structure in which the straight portion cover 30 and the intersection portion cover 40 are installed on the panel 20 is a hinge engagement structure including the step portions 202 and 203, the hinge portions 301 and 404, and the hinge engagement holes 204 and 205. The double floor structure with the covers 30 and 40 is complicated because it is basically composed of an engaging structure in the joint and engaged area and an engaging structure comprising the engaging portion 302 and the engaging hole 206. It is easy to process, manufacture and install.
[0085]
(2) The covers 30 and 40 can be made of an elastic material such as hard resin, soft resin, or other rubber, and can be easily processed and manufactured at low cost. In addition, these materials make it possible to integrally form the parts that make up the hinge engagement structure, fitting / engagement structure, and locking structure. can do.
[0086]
(3) Since the covers 30 and 40 can be reduced in size and weight by being configured using a resin material, the opening and closing operation can be easily performed, and the open state and the closed state are also provided. Can be easily maintained, and construction work can be easily and efficiently performed. In particular, the hinge portions 301 and 404 of the covers 30 and 40 can be made of a resin material, and by the hinge portions 301 and 404, the covers 30 and 40 can be rotated and opened and closed easily and smoothly. . Therefore, by opening and closing the covers 30 and 40, for example, wiring can be easily laid and transferred even after wiring under the panel 20 or prior to the wiring passage 50.
[0087]
(4) Once the covers 30 and 40 are coupled to the panel 20 side with a hinge engagement structure, the covers 30 and 40 are not easily detached or lost, and the handling of the covers 30 and 40 is simple. 30 and 40 can be attached and detached freely.
[0088]
(5) Since the intersection cover 40 is formed by polymerizing the metal material 401 and the elastic resin material 402 or a resin material or an elastic material, a thin plate material or the like is used for the metal material 401 to reduce the size and weight. In addition, reinforcing ribs such as the protruding portions 403 can be formed on the elastic resin material 402 and the like, and sufficient strength can be obtained at low cost.
[0089]
(6) When the intersection portion cover 40 is press-fitted and installed, for example, the engagement portion of the intersection portion cover 40 is configured to surround at least the side periphery with the elastic resin material 402. Since the contact with the corner peripheral edge 207 of the panel 20 is possible, the crossing cover 40 can be easily fitted and installed, and positioning can be performed easily and reliably.FemaleCan. Further, by forming an appropriate contact point with the engaged region of the intersection cover 40 or the panel 20 using the elastic resin material 402 or the like, rattling and generation of rattling noise are generated in contact with the panel 20 or the like. Can be prevented.
[0090]
(7) The panels 20 may be connected to each other by inserting the support legs 102 into the support leg insertion holes 203 or by installing the second engagement portions 412 into the engagement holes 211. It can be firmly connected and can be positioned and fixed easily and reliably.
[0091]
(8) As in the embodiment shown in FIGS. 14 to 16, the protrusions 403 m of the elastic resin material 402 of the intersection cover 40 are engaged between the panel corner peripheral edges 207 and both side surfaces of the protrusion 403 n. Is engaged between the sides of the panel 20 in a total of eight directions including the four directions in the corner direction of the panel and the four directions of the straight wiring grooves of the panel 20, or all of the intersecting portion cover members 40 are engaged. It becomes possible to engage with each other at the periphery, and it is possible to reliably prevent the horizontal displacement between the panels 20 and to improve the earthquake resistance.
[0092]
(9) After laying the plurality of panels 20, the intersection cover 40 is engaged and installed at the intersection between the corners of each panel 20, and each panel 20 and each intersection cover 40 are engaged.The AndIn the panel corner area, the panels 20 and the intersection cover 40 are securely engaged with each other.To positionIn addition, the panels 20 can be securely connected to each other.PositioningAll panels 20 can stabilize each otherPositioningCan be fixed.
[0093]
【The invention's effect】
  By using the double floor structure according to the present invention, the panels can be reliably positioned by the cover with an inexpensive and simple configuration.FemaleIt is possible to achieve a certain level of seismic resistance. In addition, since the flange portion of each laid panel is reliably engaged with the engaged area between the panel corners by the cover at the gathering portion, the effect of obtaining a stable strength is obtained. Also, the intersection coverOf the engaging partBy engagement,Engaging partIt can be set as the structure which touches a panel corner part via an elastic resin material, and there exists an effect which can prevent generation | occurrence | production of rattling and rattling sound. In addition, it is possible to make the panel, the straight part, the intersection cover simple and inexpensive, and it is possible to use a relatively inexpensive resin material for the cover, and it is possible to reduce the size. It can be manufactured easily and the material used can be reduced. Moreover, it is possible to construct a panel, a straight part, and an intersection cover easily and reliably.
[Brief description of the drawings]
[Figure 1]FirstThe perspective view which shows the whole structure of the double floor structure of embodiment.
[Figure 2]FirstPlane | planar explanatory drawing which shows the panel in an embodiment, a cross | intersection part cover, and a linear part cover.
FIG. 3 (a)Of the first embodimentPlan view of straight part cover, (b)Is thatFront view of straight part cover, (c)Is thatThe side view of a linear part cover.
[Fig. 4]Of the first embodimentThe enlarged plan view explaining opening and closing of a linear part cover.
[Figure 5]Of the first embodimentThe expanded vertical side view explaining opening and closing of a linear part cover.
[Fig. 6]Of the first embodimentThe perspective view which shows the back surface of a part of straight part cover.
FIG. 7 (a)Of the first embodimentPlan view of the intersection cover, (b)Is thatCross-section front view of intersection cover, (c)Is thatThe side view of the hinge part of a cross | intersection part cover.
FIG. 8 (a)Of the first embodimentPlan view of the metal material of the intersection cover, (b)Is thatThe longitudinal section front view of the metal material of an intersection cover.
FIG. 9 (a)Of the first embodimentPlan view of resin material of intersection cover, (b)Is thatLongitudinal front view of resin material of intersection cover, (c)Is thatThe vertical side view of the hinge part of the resin material of a cross | intersection part cover.
FIG. 10 (a)Is another variantTop view of example intersection cover, (b)Is another variantThe AA arrow longitudinal cross-sectional view of the crossing part cover of an example.
FIG. 11 (a)Is another variantLongitudinal front view showing the closed state of the example intersection cover, (b)Is thatThe longitudinal section front view which shows the open state of a cross | intersection part cover.
FIG.Of the first embodimentThe partial perspective view which shows the double floor structure in the closed state of a linear part cover and a cross | intersection part cover.
FIG. 13VariantThe partial perspective view which shows the double floor structure in the open state of a linear part cover and a cross | intersection part cover.
FIG. 14 (a)IsA back view of the elastic resin material in the cover of the modified portion, (b)IsThe top view of the elastic resin material in the crossing part cover of a modification, (c)IsThe BB arrow longitudinal cross-sectional view of the elastic resin material in the cross | intersection part cover of a modification.
15 is a plan view showing an installation state of the intersection cover of FIG. 14;
16 is a partial perspective view showing a double floor structure in the open state of the intersection cover of FIG. 14;
[Explanation of symbols]
20 panels
201, 202 steps
207 Corner edge
208 Side edge
211 engagement hole
30 Straight section cover
40 Intersection cover
401 Metal
401a Convex
402 Elastic resin material
403, 403m, 403n Projection
403a recess
411 first engaging portion
412 2nd engaging part
50 Wiring path

Claims

A double floor structure in which a support portion is disposed on a floor surface, a plurality of panels are supported and aligned by the support portion, and a cover is provided on an upper surface of a portion where the plurality of panel corners gather;
An engaging portion of an elastic resin material provided on the back side of the cover;
An engaged region provided between the substantially peripheral edges of the panel corners of the gathering location, or between the substantially peripheral edges and between the side peripheral edges in the vicinity of the substantially peripheral edge;
While engaging the engaging portion of the cover and the engaged region,
The cover is detachably attached to at least one panel corner of the plurality of panel corners, a hinge mechanism is provided, and the cover can be opened and closed by the hinge mechanism. Heavy floor structure.

The double floor structure according to claim 1, wherein the engaging portion is formed by coating an elastic resin material on a convex portion of a metal material provided to protrude downward on the back side of the cover.

A double floor structure in which a support portion is disposed on a floor surface, a plurality of panels are supported and aligned by the support portion, and a cover is provided on an upper surface of a portion where the plurality of panel corners gather;
A metal material constituting the cover;
An elastic resin material provided on the back side of the metal material ;
A first engagement portion and a second engagement portion that are formed of the metal material and project downward at different positions;
An engaged area provided between substantially the peripheral edges of the panel corner of the gathering location;
An engaged portion formed in a predetermined area different from the engaged area at the corner of the panel;
The elastic resin material is interposed between the back side of the metal material and the panel corner so as to be in contact with the panel corner, and the first and second engaging portions are engaged with the engaged region. Engage with each joint,
The cover is detachably attached to at least one panel corner of the plurality of panel corners, a hinge mechanism is provided, and the cover can be opened and closed by the hinge mechanism. Heavy floor structure.

A double floor structure in which a support portion is disposed on a floor surface, a plurality of panels are supported and aligned by the support portion, and a cover is provided on an upper surface of a portion where the plurality of panel corners gather;
A metal material constituting the cover;
An elastic resin material provided on the back side of the metal material ;
A first engagement portion and a second engagement portion that are formed of the metal material and project downward at different positions;
An engaged area provided between substantially the peripheral edges of the panel corner of the gathering location;
An engagement hole formed in a step at the corner of the panel;
The elastic resin material is interposed between the back side of the metal material and the panel corner so as to be in contact with the panel corner, and the first and second engaging portions are engaged with the engaged region. Double floor structure characterized by engaging with each hole.

A double floor structure in which a support portion is disposed on a floor surface, a plurality of panels are supported and aligned by the support portion, and a cover is provided on an upper surface of a portion where the plurality of panel corners gather;
An engaging portion of an elastic resin material provided on the back side of the cover, and formed with a tapered portion inclined inwardly downward at the bottom;
An engaged region provided between the substantially peripheral edges of the panel corners of the gathering location, or between the substantially peripheral edges and between the side peripheral edges in the vicinity of the substantially peripheral edge;
The double floor structure characterized by engaging the engaging portion of the cover and the engaged regions of the plurality of panel corners.

A double floor structure in which a support portion is disposed on a floor surface, a plurality of panels are supported and aligned by the support portion, and a cover is provided on an upper surface of a portion where the plurality of panel corners gather;
A first engagement portion of an elastic resin material is provided on the back side of the cover so as to protrude downward,
A second engaging portion of elastic resin material is provided so as to protrude outward from the first engaging portion;
Forming a substantially peripheral edge of the panel corner in a shape obtained by cutting off a corner of the panel corner, and providing an engaged region between a substantially peripheral edge of the gathering location and a side peripheral edge in the vicinity of the substantially peripheral edge;
The first engaging portion and the second engaging portion are connected to the covered portion so that the first engaging portion is in contact with the substantially peripheral edge and the second engaging portion is in contact with the side peripheral edge. A double floor structure that engages with an engagement region.

A double floor structure in which a support portion is disposed on a floor surface, a plurality of panels are supported and aligned by the support portion, and a cover is provided on an upper surface of a portion where the plurality of panel corners gather;
Forming a substantially peripheral edge of the panel corner in a shape by cutting off a corner of the panel corner, and providing an engaged region between the substantially peripheral edges of the gathering location;
A plurality of convex portions projecting downward at a predetermined position corresponding to the substantially peripheral edge of each panel corner are formed on the metal plate of the cover, the convex portions are covered with an elastic resin material, and the projecting portion is formed on the back side of the cover. Provided,
A double floor structure, wherein the protrusion is engaged with the engaged region.

The cover is detachably attached to at least one panel corner of the plurality of panel corners to provide a hinge mechanism, and the cover can be opened and closed by the hinge mechanism. Item 8. The double floor structure according to any one of Items 4 to 7.

In the vicinity of two adjacent sides of the panel, a linear part cover different from the cover provided at the gathering location of the panel corner is provided so as to be openable and closable.
The double floor structure according to any one of claims 1 to 8, wherein a projecting portion to be dropped between the adjacent panels is formed on a back surface of the linear portion cover.

The double floor structure according to any one of claims 1 to 9, wherein the cover is configured by providing a metal material on an upper surface side of an elastic resin material that is hollow inside and opens on an upper surface side.