JP4159924B2

JP4159924B2 - Hinge structure of floor structure

Info

Publication number: JP4159924B2
Application number: JP2003139985A
Authority: JP
Inventors: 稔吉田; 満男石井
Original assignee: Kyodo Ky Tec Corp
Current assignee: Kyodo Ky Tec Corp
Priority date: 2003-05-19
Filing date: 2003-05-19
Publication date: 2008-10-01
Anticipated expiration: 2023-05-19
Also published as: JP2004339861A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えばフリーアクセスフロアの二重床構造等の床構造に用いられるヒンジ構造に関する。
【０００２】
【従来の技術】
フリーアクセスフロアの技術分野に於いては、電算機室やＯＡ機器対応用として二重床構造が広く用いられているが、二重床構造に於いて施工性の向上を図るべく、パネル部材相互間の配線通路上に設置するカバー部材にヒンジ構造を設ける構成が公知である。
【０００３】
前記カバー部材を開閉可能にするヒンジ構造に関連する公知技術として、特許文献１に、配線通路の上面開口に設置するカバー部材（蓋）をパネル部材（パネル本体）に縁部で蝶番や粘着テープ等により枢着する構成が開示され、又、特許文献２に、先端に係合突起が付設されている係合具をカバー部材（溝蓋）の下方に突出して設け、パネル部材（床板）の係合孔に係合具を挿入して係合突起を係合孔に係合する構成が開示され、又、特許文献３に、パネル部材（パネル本体）間の配線通路上でカバー部材（第１の溝蓋及び第２の溝蓋）を第１の蝶番と第２の蝶番で開閉自在に連結する構成が開示され、又、特許文献４に、パネル部材（配線用床材）間の配線通路上に、薄肉部で弾性的に折れ曲がって開閉する飛出突出片を設ける構成が開示されている。
【０００４】
また、パネル部材を連結可能にするヒンジ構造に関連する公知技術として、特許文献５に、パネル部材（方形床パネル）に凹溝条を有して屈曲可能な嵌合片と嵌着孔を設け、一のパネル部材の屈曲可能な嵌合片を他のパネル部材の嵌着孔に嵌入する構成が開示され、又、特許文献６に、パネル部材（小パネル）に雄連結片と雌連結穴を設け、一のパネル部材の雄連結片を他のパネル部材の雌連結穴に嵌入して蝶番状に連結する構成が開示され、又、特許文献７に、隣接するパネル部材（床下配線用フロアパネル）の表面に渡って可撓性のシート部材であるヒンジ結合部を貼着する構成が開示されている。
【０００５】
尚、その他の参考技術として、特許文献８〜１８がある。
【０００６】
【特許文献１】
特開平８−５３９２７号
【特許文献２】
特開平９−１５８４５４号
【特許文献３】
特開平１１−８１６３９号
【特許文献４】
特開２０００−１４５１１５号
【特許文献５】
実開平６−８５８４５号
【特許文献６】
実開平５−３５９５１号
【特許文献７】
特開２０００−７３５４０号
【特許文献８】
実開平４−６６２４８号
【特許文献９】
実開平１−１６８４７１号
【特許文献１０】
実開平５−９６２８１号
【特許文献１１】
実公平７−５８７号
【特許文献１２】
特開平９−２９６５９２号
【特許文献１３】
特開平３−１４４０６０号
【特許文献１４】
実開平５−５４７３６号
【特許文献１５】
実開平５−３４２３７号
【特許文献１６】
実開平２−４５２２４号
【特許文献１７】
実開平５−１６９７２号
【特許文献１８】
特開平２−２０２３１７号
【０００７】
【発明が解決しようとする課題】
ところで、上記カバー部材に関する特許文献１〜３のヒンジ構造は、カバー部材をヒンジ構造でパネル部材に一体化するので、カバー部材の設置忘れや紛失の防止を図ることができ、又、前記一体化した構造のカバー部材を開閉することにより、配線通路への配線敷設時等にある程度効率的に施工作業を行うことを可能にし、更にカバー部材を位置決め固定して閉状態にすることを可能にするものの、安定したカバー部材を上方に開き一時的に位置決めして開状態とし、その位置決めした開状態を安定して維持することが困難である。そのため、例えば施工作業中にカバー部材が自然に閉じたりする事態や、カバー部材を何度も開ける必要が生じ、施工作業の効率化を十分に図ることが難しいという問題がある。同様に特許文献４のヒンジ構造も、カバー部材を配線通路内に押し込んで開状態にする構成であるため、配線通路の配線状態の確認が難しく、又、カバー部材を上げて閉状態にするのに労力を要し、施工作業を効率化することが困難である。
【０００８】
更に、特許文献３のようにカバー部材と独立した蝶番を設ける場合には、ヒンジ構造が複雑化し、又、部品点数が増加することから、高コスト化する等の問題を生ずる。
【０００９】
また、上記カバー部材に関する特許文献５、６のヒンジ構造は、パネル部材同士の連結作業を容易化することができるものの、パネル部材の下に配線敷設する際には、配線通路上のパネル部材の連結を外してパネル部材を取り外す必要が生じ、配線敷設時等の施工作業を効率化することが困難である。他方、特許文献７のヒンジ構造は、パネル部材をヒンジ結合部を中心に回転して開閉することが可能であるものの、ヒンジ結合部が可撓性のシート材であるため、強度や耐久性に劣るという別の問題を生ずる。
【００１０】
更に、樹脂形成するヒンジ構造とする場合には、スムーズな開閉を可能にするため連結部を薄肉にする程、強度が著しく弱くなって、開閉動作中や開状態の際に歩行して誤って踏む、接触する、ぶつかる等で加わる衝撃で破損しやすくなり、他方、例えば強度を考慮して連結部を厚肉にする程、スムーズな開閉動作が困難になって中途半端な位置で半開き状態になり、前記半開き状態が破損を誘発する要因となる。そのため、連結部の肉厚等の設定が難しく、設計が非常に困難であった。
【００１１】
本発明は上記課題に鑑み提案するものであり、簡単な構造で強度や耐久性に優れると共に、カバー部材やパネル部材を開閉自在にし、且つその開状態と閉状態の両者の安定性に優れ、配線敷設等の施工作業を効率化することができる床構造体のヒンジ構造を提供することを目的とする。
【００１２】
【課題を解決するための手段】
本発明の床構造体のヒンジ構造は、カバー部材若しくはパネル部材に薄肉連結部を有する連結手段を介して設けられる係合手段と、床構造体の所定箇所に設けられ該係合手段が係合される被係合手段とを有し、カバー部材若しくはパネル部材を開閉可能とする床構造体のヒンジ構造において、前記連結手段の薄肉連結部の薄肉領域Ｘ１の幅Ｗが略中央部若しくは略中央部近傍から略端部に向かって漸次狭くなるように形成されていることを特徴とする。
【００１３】
また、本発明の床構造体のヒンジ構造は、カバー部材若しくはパネル部材に薄肉連結部を有する連結手段を介して設けられる係合手段と、床構造体の所定箇所に設けられ該係合手段が係合される被係合手段とを有し、カバー部材若しくはパネル部材を開閉可能とする床構造体のヒンジ構造において、前記連結手段の薄肉連結部の薄肉領域Ｘ１が略半卵形状若しくは略半球形状の曲面で形成され凹設されていることを特徴とする。
【００１４】
上記連結手段は、例えば屈曲部分に薄肉連結部が形成され、その他の部分に厚肉連結部が形成されているヒンジ基部等とすることが可能であり、又、上記係合手段は、例えば割溝を有する略茸形状の係合部等とすることが可能であり、又、上記被係合手段は、例えばパネル部材に設けられている被係合孔等とすることが可能である。
【００１５】
上記係合手段は着脱自在若しくは着脱可能に被係合手段に係合する構成とすると好適であるが、着脱不能に係合する構成とすることも可能であり、又、係合手段は割溝部を有するものとすると良好であり、又、係合手段は連結手段の略先端に設けるとよい。また、上記被係合手段は、床構造体の所要の適宜箇所に設けることが可能であり、例えばパネル部材等を支持する支持部材の所定箇所、パネル部材の所定箇所、カバー部材の所定箇所等とし、これらの部材の全て若しくは適宜の組み合わせなど複数の異なる部材の所定箇所に被係合手段を適宜設ける構成等とすることも可能である。
【００１６】
更に、本発明の床構造体のヒンジ構造は、前記連結手段の薄肉連結部の少なくとも一部分に開口部が形成されていることを特徴とする。前記開口部は、例えば薄肉連結部の所定領域Ｘ１内に形成するが、薄肉連結部の略中央部或いは薄肉連結部の所定領域Ｘ１内の略中央部に形成すると好適であり、又、開口部の形状は適宜であるが、平面視略円形に形成すると好適である。
【００１７】
更に、本発明の床構造体のヒンジ構造は、前記連結手段の薄肉連結部に設けられた開口部が前記係合手段の少なくとも近傍位置まで延びる開口溝とほぼ連設されていることを特徴とする。例えば連結手段の薄肉領域等に開口部を設け、連結手段の開口部から係合手段まで開口溝を連設する構成等とする。
【００１８】
尚、本発明は、連結手段の薄肉連結部の薄肉領域の幅Ｗを略中央部若しくは略中央部近傍で略端部より長く形成する構成や、或いは連結手段の幅方向Ｔに於ける略中央部若しくは略中央部近傍の肉厚が薄い薄肉領域を略端部の肉厚が薄い薄肉領域よりも大きくなるように形成し、連結手段の幅方向Ｔに於ける略端部の肉厚が厚い補強領域若しくは補強部を、略中央部若しくは略中央部近傍の肉厚が厚い補強領域若しくは補強部よりも大きくなるように形成する構成や、或いは連結手段の薄肉連結部の薄肉領域の幅Ｗ若しくは大きさを、連結手段の幅方向Ｔに於ける略中央部若しくは略中央部近傍と略端部とで変化させる構成とすることも可能である。
【００１９】
また、連結手段の肉厚が薄い薄肉領域を、連結手段の幅方向Ｔに於ける略中央部若しくは略中央部近傍から略端部に向かって漸次小さくなるように形成し、連結手段の肉厚の厚い補強領域若しくは補強部を、連結手段の幅方向Ｔに於ける略中央部若しくは略中央部近傍から略端部に向かって漸次大きくなるように形成する構成や、或いは連結手段の所定の連結領域の肉厚が、連結手段の幅方向Ｔに於ける略中央部で最小（厚さ０を含む）になると共に、連結手段の幅方向Ｔに於ける略端部で最大になり、前記肉厚が略中央部から略端部に向かって、連続的に徐々に増大する若しくは段階的に増大するなど漸次増大する構成とすることが可能であり、又、薄肉領域の幅Ｗは曲線的に増加すると好適である。
【００２０】
また、連結手段の薄肉連結部の薄肉領域に、連結手段の幅方向Ｔに於ける略中央部若しくは略中央部近傍から略端部に向かって肉厚を増大する部分を設ける構成とすることが可能であり、前記肉厚を増大する部分は薄肉連結部或いは薄肉領域の全領域としてもよいが、例えば連結手段の幅方向Ｔに延びる薄肉領域の中心線近傍領域では全て若しくは開口部を除く全ての領域で極薄の肉厚とし、前記中心線近傍領域以外では、幅方向Ｔに於ける略中央部若しくは略中央部近傍から略端部に向かって肉厚を増大するようにしてもよく、その肉厚は漸次若しくは段階的に増大することが可能であり、曲線的に増大すると好適である。又、連結手段の薄肉連結部の薄肉領域が連結手段の突出方向Ｌに於ける略中央部若しくは略中央部近傍から略端部に向かって漸次肉厚を増大する構成とすることも可能である。
【００２１】
また、連結手段の薄肉連結部が連設されている厚肉連結部と略Ｒ曲線状の境界ラインで区切られている構成や、或いは連結手段の薄肉連結部が略半卵形状若しくは略半球形状の曲面に凹設され、薄肉連結部と薄肉連結部より肉厚が厚い厚肉連結部若しくは補強部が略弧状の境界ラインで区切られて形成されている構成や、或いは連結手段が、薄肉連結部が形成されている第１の領域Ｘ１と、厚肉連結部が形成されている第２の領域Ｘ２を有し、少なくとも第１の領域Ｘ１内に開口部を形成し、開口部の周縁若しくはその一部が、第２の領域Ｘ２にまで及んで境界ライン若しくは境界ラインの一部を形成し、第１の領域Ｘ１と第２の領域Ｘ２を区分けする、或いは薄肉連結部の領域と厚肉連結部の領域を区分けする構成とすることが可能である。
【００２２】
また、本発明に於ける連結手段、薄肉連結部や厚肉連結部、係合手段或いは被係合手段等のヒンジ構造の各部は、適宜の一の材料若しくは複数の材料の組み合わせで形成することが可能であるが、少なくとも、連結手段、或いは薄肉連結部と厚肉連結部若しくは補強部、或いは薄肉連結部とその近傍を弾性樹脂等の弾性材で形成すると好適である。
【００２３】
また、本発明のヒンジ構造は、床面に敷設されるタイル、床地材、置敷式床材、或いは配線等を敷設するＯＡフロア用のフリーアクセスフロア、パネル部材を床面上で所定の支持部材で支持しパネル相互間等にカバー部材を設けて構成される二重床構造等を含む床構造体に適宜用いることが可能であり、パネル部材、カバー部材にはこれらの開閉を可能とする適宜の部材が含まれる。
【００２４】
【作用】
本発明の床構造体のヒンジ構造は、例えば係合手段に至る連結手段に前記連結手段の通常の肉厚より薄い薄肉連結部を設け、前記薄肉連結部により、カバー部材やパネル部材のスムーズな回動動作による開閉を可能とし、更に、薄肉連結部の薄肉領域の幅Ｗを、連結手段の幅方向Ｔの中央部若しくは中央部近傍より端部に於いて狭く形成し、特に薄肉領域の幅Ｗが略中央部若しくは略中央部近傍から略端部に向かって漸次狭くなるように形成することにより、カバー部材やパネル部材の開状態を安定して維持することが可能となると共に、強度や耐久性の向上が図られる。換言すれば、カバー部材やパネル部材のスムーズな回動による開閉や開状態の安定的な維持を可能とする、適度な屈曲や可撓性、安定性を有する良好なヒンジ効果が得られ、又、衝撃が加わった場合にも、衝撃力を分散、吸収して破損を防止することが可能である。
【００２５】
好適には、薄肉連結部と厚肉連結部とを、端部から中央に向かって拡がって形成された略Ｒ曲線状の境界ラインで区切る、或いは、薄肉連結部を略半卵形状若しくは略半球形状の曲面で形成される薄肉領域を凹設することにより、より適度な屈曲や可撓性、安定性を有する良好なヒンジ効果が得られると共に、強度や耐衝撃性等をより高めることが可能となる。
【００２６】
更に、薄肉連結部の中央部に形成する開口部により、好ましくは薄肉連結部の開口部を係合手段の近傍位置まで延びる開口溝と連設することにより、より一層適度な柔軟性の屈曲や可撓性、高度な安定性を有する良好なヒンジ効果が得られると共に、開口部による弾性等で水平方向等の衝撃を吸収することが可能となり、強度や耐衝撃性等をより高めることが可能となる。
【００２７】
更に、薄肉連結部の薄肉領域が連結手段の幅方向Ｔに於ける略中央部若しくは略中央部近傍から略端部に向かって漸次肉厚を増大することにより、強度や耐衝撃性等を高めつつ、より一層適度な柔軟性の屈曲や可撓性、高度な安定性を有する良好なヒンジ効果が得られる。
【００２８】
更に、薄肉連結部及びその近傍等を弾性材で形成することで、より一層適度な柔軟性の屈曲や可撓性が得られ、よりスムーズな開閉動作が可能となり、好ましくは弾性樹脂によりカバー部材やパネル部材と一体形成することで、製造が容易となり、コスト低減を図ることが可能となる。
【００２９】
更に、係合手段を被係合手段に係合する構成により、係合手段の被係合手段に対する着脱を容易にし、加えて安定した係合状態を維持することが可能となるので、カバー部材やパネル部材の開閉動作時の安定性等を向上することができる。
【００３０】
【発明の実施の形態】
以下では本発明による床構造体のヒンジ構造について、二重床構造のヒンジ構造の具体的な実施形態について説明する。尚、本発明のヒンジ構造は、パネル部材にカバー部材を設置する構成以外にも、例えばパネル部材同士を連結する場合等にも適用可能である。
【００３１】
［二重床構造の全体構成の説明］
先ず、実施形態のヒンジ構造が設けられる二重床構造の全体構成について説明する。図１〜図３は実施形態に於ける二重床構造の例に関し、図１、図２は二重床構造の全体構成を示す斜視図及び平面図、図３はパネル部材、直線部カバー部材、交差部カバー部材の平面説明図、図４は別例のパネル部材、直線部カバー部材、交差部カバー部材の平面説明図、図５は直線部カバー部材を示す図、図６〜図８は交差部カバー部材を示す説明図である。
【００３２】
実施形態のヒンジ構造が設けられる二重床構造は、図１〜図３に示すように支持脚分離型の二重床構造であり、前記二重床構造には、所定の支持部材として高さ調整可能な支持脚ユニット１０が床面の所定位置に配設され、支持脚ユニット１０には基台１０１の略隅部に４個の支持脚１０２が各々配置して立設され、床板となる略方形平板状のパネル部材２０が支持脚１０２で支持されて敷設される。そして、支持脚ユニット１０に配設された支持脚１０２・１０２間等、パネル部材２０の相互間の下方には、配線通路５が縦横へ連続して格子状に形成され、配線通路５の上面開口にカバー部材３０が設けられる構成であり、パネル部材２０・２０の略側辺間の直線部では配線通路５の上面開口に直線部カバー部材３０ａが覆設され、４つのパネル部材２０の隅部の集合箇所である交差部では配線通路５の上面開口に交差部カバー部材３０ｂが覆設される。
【００３３】
支持脚ユニット１０は、床面に敷設される略方形平板状の基台１０１を有し、基台１０１上の略隅部に４本の支持脚１０２が一定の間隔を開けて立設され、所定間隔で配設された支持脚１０２の相互間は配線通路５となる、或いは支持脚１０２の相互間に配設通路５が形成される。
【００３４】
各支持脚１０２は高さ調整機構１０３を備え、高さ調整機構１０３には、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の側周や底部或いは上部に、後述するパネル部材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。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部などナット回し工具を挿入可能な開口部１０３ｄが形成されている。
【００３５】
パネル部材２０は、略方形状の板材であり、その四隅は先端を略４５度で切り落とした形状になっている。更に、パネル部材２０の前後左右の４つの長い側辺或いは側周縁の近傍には直線部カバー部材３０ａを受ける段部２０１が形成され、その隅部の周縁近傍にも交差部カバー部材３０ｂを受ける段部２０２が形成され、パネル部材２０の上面より低い段部２０１、２０２が全周縁に沿って連続的に形成されている。
【００３６】
パネル部材２０の四隅には、例えばナット部１０３ｂを略嵌挿若しくは遊挿可能な程度の大きさの支持脚挿入孔２０３が設けられ、パネル部材２０は、支持脚１０２のナット部１０３ｂを支持脚挿入孔２０３に挿入するように敷設されて位置決めされ、パネル部材２０の底面をパネル受け部１０３ｃで受け、支持脚１０２で支持される。支持脚ユニット１０に敷設されるパネル部材２０は、支持脚挿入孔２０３へのナット部１０３ｂの挿入等により、支持脚ユニット１０や隣り合うパネル部材２０等に対して位置決めされ、敷設するパネル部材２０の位置決め固定を簡単且つ確実に行うことが可能であり、パネル部材２０相互は所定位置に配置され強固に結合される。
【００３７】
直線部カバー部材３０ａは、パネル部材２０・２０の略側辺相互間に配設されるものであり、図１〜図３及び図５に示すように、平面視略長方形の略平板状であって、その長手方向に延びる側辺のうち一方の側辺若しくは一方の側端から外側方に突出するように、ヒンジ基部４０ａが所定位置に２箇所設けられている。又、パネル部材２０の上面より低い段差部分或いは段部２０１には、ヒンジ基部４０ａの形成箇所に対応する所定位置に、所定の被係合手段として被係合孔２０４ａが設けられている。
【００３８】
交差部カバー部材３０ｂは、パネル部材２０の隅部の集合箇所に於ける略隅部周縁相互間に配設されるものであり、図１〜図３及び図６〜図８に示すように、平面視略八角形であり、前記略八角形の一辺若しくは一端から外側方に突出するようにヒンジ基部４０ｂが設けられている。又、パネル部材２０の少なくとも一つの隅部には、その上面の支持脚挿入孔２０３よりも周縁に近い位置で低く形成された段差部分或いは段部２０２に、ヒンジ基部４０ｂの配設箇所に対応する所定位置に、所定の被係合手段として被係合孔２０４ｂが設けられている。
【００３９】
上記図１〜図３の二重床構造は、ヒンジ基部４０ａと対応する被係合孔２０４ａがパネル部材２０の隣り合う２側辺に設けられ、後述する係合部４４０の被係合孔２０４ａへの係合により前記隣り合う２辺に直線部カバー部材３０ａが設けられると共に、前記隣り合う２側辺で構成されるパネル部材２０の隅部或いは前記２側辺側の隅部に、ヒンジ基部４０ｂと対応する被係合孔２０４ｂが設けられ、後述する係合部４４０の被係合孔２０４ｂへの係合により前記隅部に交差部カバー部材３０ｂが設けられ、パネル部材、直線部カバー部材３０ａ、交差部カバー部材３０ｂの一ユニットが構成される。
【００４０】
尚、図１〜図３の二重床構造の他に、例えば図４の二重床構造のように、被係合孔２０４ａや直線部カバー部材３０ａが設けられる前記隣り合う２側辺で構成されるパネル部材２０の隅部或いは前記２側辺側の隅部と対向する隅部、又は、被係合孔２０４ａや直線部カバー部材３０ａが設けられていない２側辺で構成される隅部に、ヒンジ基部４０ｂと対応する被係合孔２０４ｂが設けられ、後述する被係合孔２０４ｂへの係合部４４０の係合により前記隅部に交差部カバー部材３０ｂが設けられる構成としてもよい。前記構成により、開状態とした際の直線部カバー部材３０ａと交差部カバー部材３０ｂの干渉を防止することができる。
【００４１】
［ヒンジ構造の詳細な説明］
直線部カバー部材３０ａのヒンジ基部４０ａ、交差部カバー部材３０ｂのヒンジ基部４０ｂは、図５〜図８及び図９〜図１２に示すように、平面視で略Ｕ字形の平板状で、カバー部材３０の側端若しくは端部から側方に突出して設けられており、突出するヒンジ基部４０ａ、４０ｂの略根元近傍から前記突出方向Ｌに於けるヒンジ基部４０ａ、４０ｂの略中央にかけて設けられる薄肉連結部４１０と、薄肉連結部４１０内で開口されている略円形の開口部４２０と、開口部４２０と連設される長溝の開口溝４３０と、前記開口溝４３０の略Ｙ字の略中心近傍位置から下方に突出して設けらている略茸形の係合部４４０を備える。
【００４２】
薄肉連結部４１０は、ヒンジ基部４０ａ、４０ｂの平板部分の厚さより肉厚が薄く形成され、可撓性を有し屈曲する構成であり、又、薄肉連結部４１０に、ヒンジ基部４０ａ、４０ｂの下側に略半卵形状若しくは略半球形状の曲面で形成される薄肉領域Ｘ１が凹設され、ヒンジ基部４０ａ、４０ｂの略全体と同じ厚さの厚肉連結部４５０或いは補強部が突出方向Ｌの前後に位置し、薄肉連結部４１０と厚肉連結部４５０、或いは薄肉領域Ｘ１と厚肉領域Ｘ２は、境界ラインＳで区画されている。そして、薄肉連結部４１０の薄肉領域Ｘ１の幅Ｗは、ヒンジ基部４０ａ、４０ｂの幅方向Ｔの中央部４１１で広く、その幅方向Ｔの端部４１４側へ行くに従って狭くなる様に形成され、中央部４１１と端部４１４とで変化している。
【００４３】
即ち、薄肉連結部４１０は、ヒンジ基部４０ａ、４０ｂの突出方向Ｌに於いて、その薄肉領域Ｘ１の中央部４１１から前端部４１２若しくは後端部４１３の境界ラインＳに向かって薄肉連結部４１０の肉厚が漸次増大するように形成され、更に、薄肉連結部４１０或いは薄肉領域Ｘ１は、中央部４１１からヒンジ基部４０ａ、４０ｂの幅方向Ｔの端部４１４に行くに従って、漸次連続的に若しくは段階的に厚くなるように厚さを変化して形成され、ヒンジ基部４０ａ、４０ｂの幅方向Ｔに於いて、その薄肉領域Ｘ１の中央部４１１からヒンジ基部４０ａ、４０ｂの幅方向Ｔの端部４１４に向かって薄肉領域Ｘ１の幅Ｗが漸次狭くなるように形成されており、平面視の境界ラインＳはヒンジ基部４０ａ、４０ｂの幅方向Ｔの端部４１４から中央部４１１に行くに従って漸次外側に丸みを帯びる形状で形成され、薄肉領域Ｘ１はヒンジ基部４０ａ、４０ｂの幅方向Ｔを長手方向とする平面視略楕円形状になっている。
【００４４】
更に、薄肉領域Ｘ１内には、図１０、図１１に示すように、薄肉連結部４１０或いは薄肉領域Ｘ１の中で最も肉厚の薄い極薄肉領域Ｘ３が、中央部４１１の近傍位置若しくは開口部４２０からヒンジ基部４０ａ、４０ｂの幅方向Ｔの端部４１４に向かって、その幅Ｗ’が狭くなるようにテーパ状或いは略三角形状に設けられており、極薄肉領域Ｘ３は中央部４１１からヒンジ基部４０ａ、４０ｂの幅方向Ｔの両側の端部４１４・４１４に向かってそれぞれ設けられている。
【００４５】
前記薄肉連結部４１０或いは薄肉領域Ｘ１の厚さを中央部４１１近傍で最も薄くし、或いは開口部４２０でゼロとし、前端部４１２若しくは後端部４１３に向かって増大するように変化させ、又、中央部４１１から端部４１４・４１４に向かって薄肉領域Ｘ１の幅Ｗが漸次狭くなるように変化させ、更に肉厚を増大するように変化させる構成により、良好な可撓性や捻れ性を得つつ、高い強度や耐久性を得ることができる。そして、薄肉領域Ｘ１の肉厚の変化、薄肉領域Ｘ１の幅Ｗや大きさの変化、開口部４２０の面積や大きさの変化を調整して設定することにより、所要の可撓性や捻れ性と、所要の強度や耐久性を得ることが可能である。特に、中央部４１１に開口部４２０を設ける構成とすると、両端部４１４等で強固な剛性や結合力を得つつ、より一層良好な柔軟性・可撓性・捻れ性を得ることができる。
【００４６】
そして、前記薄肉連結部４１０の構成により、バランスが良い弾性復元力と屈曲安定性を有するヒンジ構造を得ることができ、例えば図１２に示すように、カバー部材３０をスムーズに開閉可能で、カバー部材３０をある程度まで開状態とした場合には、カバー部材３０は前記弾性復元力で弾性復帰して自然に閉動作を生起し、ある程度以上まで開状態とした場合には、前記屈曲安定性で安定して開状態を維持する、又、閉状態とした場合には安定して閉状態を維持する良好なヒンジ効果を有するヒンジ構造を構成することが可能である。
【００４７】
また、所定の被係合手段である被係合孔２０４ａ、２０４ｂと着脱可能或いは着脱自在に係合する係合部４４０は、図９〜図１１に示すように、ヒンジ基部４０ａ、４０ｂから下方に突設し、先端に略３分割された略半球状の半球部４４１が形成され、換言すれば略茸形状に形成されており、又、その突出方向に沿って裏面視略Ｙ字形の割溝４４２が形成され、半球部４４１は３つに分割されている。そして、本実施例ではヒンジ基部４０ａ、４０ｂに於いて、割溝４４２の略Ｙ字形が開口溝４３０の略Ｙ字形にそのまま繋がって形成され、割溝４４２、開口溝４３０、開口部４２０は繋がって形成されている。
【００４８】
前記係合部４４０は、パネル部材２０側に設けられている被係合孔２０４ａ、２０４ｂに対応する形状や大きさであり、例えば上方からの押し込みにより、係合部４４０の半球部４４１を割溝４４２により縮径しながら被係合孔２０４ａ、２０４ｂに挿入し、被係合孔２０４ａ、２０４ｂから突出した半球部４４１が拡径して係合する構成である。更に、半球部４４１の上面は、例えば図９、図１０に示すように内側に向かって幅狭となるテーパ状に形成され、例えば上方への引っ張りにより、前記突出した半球部４４１を割溝４４２により縮径しながら被係合孔２０４ａ、２０４ｂから抜き出すことが可能な構成である。
【００４９】
前記割溝４４２は、図９〜図１１の例では裏面視で略Ｙ字形に形成されているが、例えば裏面視で略十字形状に形成する、裏面視で略一字形状に形成するなど適宜であり、これに対応して半球部４４１の分割部の個数も、３つ、４つ、２つなど少なくとも２つ以上であれば適宜である。又、割溝４４２は、開口溝４３０や開口部４２０と繋げて形成しないことも可能である。
【００５０】
また、薄肉連結部４１０の開口部４２０と一体的に繋がって形成されている開口溝４３０は、ヒンジ基部４０ａ、４０ｂの先端方向へ向かって分岐する略Ｙ字形の長溝で形成され、平面視でヒンジ基部４０ａ、４０ｂの突出方向Ｌへ延び、その略中央に形成されている。前記開口溝４３０を設けることにより、ヒンジ基部４０ａ、４０ｂの開口部分の面積を拡大することができ、併せて中央部分の厚肉連結部４５０を無くして厚肉領域を減少し、より柔軟性や可撓性が高いヒンジ構造とすることが可能となる。
【００５１】
尚、ヒンジ基部４０ａ、４０ｂ、薄肉連結部４１０、開口部４２０、開口溝４３０、係合部４４０、割溝４４２、厚肉連結部４５０等の、例えば大きさ、形状、領域規定等の構成や、開口部４２０、開口溝４３０、割溝４４２を繋げて形成する構成等は、上述の作用効果或いはその一部の作用効果が得られる範囲或いは共通する機能若しくは作用効果が得られる範囲で適宜であり、又、これらを適宜調整して構成することで、所要の捻れ性・撓み性・柔軟性を設定し、スムーズな開閉等が可能なヒンジ構造を構成することが可能であり、良好な自動復帰機能や、開状態の維持や、閉状態の維持するために、所定の材料に応じ、ヒンジ基部４０ａ、４０ｂ等を所定の肉厚や幅等に適宜設定して構成する。
【００５２】
また、ヒンジ構造は、後述する直線部カバー部材３０ａ、交差部カバー部材３０ｂの良好な自動復帰機能や、開状態の維持や閉状態の維持が可能な構成であれば適宜である。尚、上記ヒンジ構造により弾性材料によらずとも良好な可撓性・弾力性や、開状態や閉状態の維持が可能なヒンジ構造を構成できる。
【００５３】
また、ヒンジ基部４０ａ、４０ｂ或いは薄肉連結部４１０は、樹脂成形後に或いはその直後に、数回の繰り返し曲げにより、弾力性等のヒンジ効果、ヒンジの強度やヒンジによる結合の強化、ヒンジ屈曲の耐久性等を向上することが可能である。
【００５４】
また、例えば図１３に示すように、ヒンジ基部４０ａ、４０ｂで開口溝４３０と割溝４４２が一体化或いはほぼ一体化すると共に、開口溝４３０と開口部４２０とが繋がらずに設けられ、薄肉連結部４１０或いは薄肉領域Ｘ１が略半卵形状の曲面で形成されている構成や、図１４に示すように、略一文字形の割溝４４２がヒンジ基部４０ａ、４０ｂで開口溝４３０と繋がって形成され、薄肉連結部４１０の略Ｒ曲線状の境界ラインＳがヒンジ基部４０ａ、４０ｂの幅方向Ｔの両端で突合し、薄肉連結部４１０或いは薄肉領域Ｘ１が略半卵形状の曲面で形成されている構成や、図１５に示すように、係合部４４０の略十文字形の割溝４４２がヒンジ基部４０ａ、４０ｂで開口溝４３０と繋がって形成され、開口部４２０が平面視略正方形に形成され、前記略正方形とその両側に配置される略三角形の領域又は前記略三角形の領域で薄肉領域Ｘ１を構成し、前記略三角形の領域がヒンジ基部４０ａ（４０ｂ）の幅方向Ｔの略中央から略端部に向かって肉厚を増大させる構成等としてもよい。
【００５５】
更に、例えば図１６に示すように、係合部４４０を割溝４４２が形成されていないものとし、略正方形の開口部４２０に開口溝４３０が繋がって形成され、前記開口部４２０の略正方形とその両側に配置される、前記略正方形の側辺より幅狭の略方形の領域又は前記略方形の領域で薄肉領域Ｘ１を構成し、前記略方形の領域がヒンジ基部４０ａ（４０ｂ）の幅方向Ｔの略中央から略端部に向かって肉厚を増加する構成や、図１７に示すように、開口部４２０を平面視略八角形とし、前記開口部４２０の略八角形とその両側に配置される、前記略八角形の一辺と略同幅の略方形の領域又は前記略方形の領域で薄肉領域Ｘ１を構成し、前記略方形の領域がヒンジ基部４０ａ（４０ｂ）の幅方向Ｔの略中央から略端部に向かって肉厚を増加する構成等としてもよい。
【００５６】
更には、薄肉連結部４１０の中央部４１１に開口部４２０を形成しない構成としてもよく、例えば図１８に示すように、薄肉連結部４１０の薄肉領域Ｘ１内或いはその領域Ｘ１を逸脱して形成する開口部４２０を設けずに、薄肉連結部４１０の厚さを幅方向Ｔの略中央で極小、幅方向Ｔの略端部で最大となるように、連続的に若しくは段階的に漸次増大して変化させ、更に、薄肉領域Ｘ１を略半卵形状の曲面等で形成し、ヒンジ基部４０ａ（４０ｂ）の幅方向Ｔへ切込４１５を形成する構成等としてもよい。
【００５７】
また、上記第１実施形態の薄肉連結部４１０は、その薄肉領域Ｘ１に開口部４２０を形成し、更に、平面視で開口部４２０の周縁が厚肉連結部４５０の厚肉領域Ｘ２に及んで形成され、平面視で開口部４２０の周縁は略曲線状の境界ラインＳの一部を構成しているが、境界ラインＳ或いは境界ラインＳで囲まれる領域或いは薄肉領域Ｘ１は、略楕円形状、略菱形形状、略四角形状、略三角形状や、これらを適宜に組み合わせた形状、段差や階段形状、略多角形状、所定の曲線形状や直線形状、図１３〜図１８の形状等、種々任意に設定して形成可能である。
【００５８】
更に、境界ラインＳの一部が、上記前端部４１２近傍や後端部４１３近傍で或いはヒンジ基部４０ａ、４０ｂの突出方向Ｌで、開口部４２０と接する或いは開口部４２０の周縁と対応する位置に形成される構成に限定されず、接しない或いは対応する位置に形成しない構成や、ヒンジ基部４０ａ、４０ｂの幅方向Ｔで開口部４２０と接する或いは開口部４２０の周縁と対応する位置に形成される構成等とすることが可能である。
【００５９】
また、上記ヒンジ構造の係合部４４０の先端部分には半球部４４１を設けているが、係合部４４０の先端部分等は断面略Ｒ形状や略茸形状等の圧入可能な任意の突起形状に形成し、後述する被係合孔２０４ａ、２０４ｂ等に係合部４４０或いはその先端部分を差し込み、簡単に離脱しないものであれば任意の変更可能であり、かような構造の直線部カバー部材３０ａ、交差部カバー部材３０ｂの係合部４４０或いはその先端部分を被係合孔２０４ａ、２０４ｂに上方から差し込み、カバー部材３０ａ、３０ｂを屈曲部となる薄肉連結部４１０等により開閉自在なヒンジ構造を構成できる。
【００６０】
［直線部カバー部材の説明］
直線部カバー部材３０ａは、図１〜図５に示すように、配線通路５を覆う略長方形の板状で共通した形状であり、弾性を有する樹脂材で形成され、パネル部材２０の隣合う２側辺に夫々設けられる。直線部カバー部材３０ａの一方の長辺側には、上記実施形態のヒンジ構造によるヒンジ基部４０ａが側方に突出して形成され、ヒンジ基部４０ａには上記の如く、直線部カバー部材３０ａを回動して開閉する際に屈曲する薄肉連結部４１０と、パネル部材２０の被係合孔２０４ａに着脱自在、着脱可能に係合或いは嵌合される略突起形状の係合部４４０等が設けられている。前記係合部４４０は、弾性力により着脱を容易にすべく、割溝４４２を有する２つの略矢形状、或いは略円錐形状等に形成されている。
【００６１】
直線部カバー部材３０ａの裏面側には、図５に示すように、パネル部材２０間及び側周縁近傍の段部２０１間への落とし込みによりカバー部材３０ａが確実に嵌って位置決めされズレが防止されるように、幅方向に所定間隔を開けて両側に突条３１ａが長手方向に沿って形成され、両側の突条３１ａ・３１ａは両側のパネル部材２０・２０の段部２０１・２０１の側周縁の内側に嵌り込み係合設置部として機能する。更に、両側の突条３１ａ・３１ａ間には補強用リブ３２ａが所定間隔で多数架設して形成され、全体として略梯子形状になっている。前記突条３１ａ・３１ａと補強用リブ３２ａが一体的に下方へ突出形成される構成により、カバー部材３０ａを閉じた場合に、カバー部材３０ａを段部２０１・２０１間への落とし込んで嵌め確実に位置決め固定することができ、例えば耐震性を向上することができる。また、直線部カバー部材３０ａの表面側は略平坦化して形成されている。
【００６２】
上記実施形態のヒンジ構造を有する直線部カバー部材３０ａは、薄肉連結部４１０の薄肉領域Ｘ１等によりスムーズな開動作が可能であると共に、薄肉領域Ｘ１の適度な肉厚に基づく弾性力により、カバー部材３０ａが開操作後に自動的に開状態から閉状態に復帰する自動復帰機能を有し、追加配線等の配線敷設時の後に直線部カバー部材３０ａを閉める手作業、手間を省くことができ、作業の効率化を図ることができる。更に、ある程度以上の開動作で屈曲して開状態とすると開状態を維持することが可能になるので、前記自動復帰機能と組合せ、必要に応じてカバー部材３０ａの開状態の維持や閉動作をさせることができ、一層作業の効率化や便宜性を高めることができる。
【００６３】
尚、直線部カバー部材３０ａに適用可能なヒンジ構造は上記実施形態のヒンジ構造以外にも適宜であり、例えば直線部カバー部材３０ａを回動して開状態にした場合に手を離すと弾性復帰し、閉状態に復帰して戻る機能を有する等、自動的に復帰する機能を有するヒンジ構造等とすることが可能である。
【００６４】
また、直線部カバー部材３０ａを形成する材料には、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、合成樹脂、その他の軟質或いは硬質樹脂を適宜使用可能であり、例えば硬質樹脂の一体成形により形成し、又、屈曲性若しくは弾性に優れる材料を用いると、ヒンジ機構として自動的に復帰する機能或いは歩行時等に発生するガタツキ音の発生防止機能が良好に得られる。又、後述の交差部カバー部材３０ｂと同様に直線部カバー部材３０ａも金属材と弾性樹脂材で構成してもよい。
【００６５】
［交差部カバー部材の説明］
交差部カバー部材３０ｂは、図６〜図８に示すように、略板状の金属材３０１ｂを基体とし、金属材３０１ｂの略下面に弾性を有する樹脂材３０２ｂを覆設したものであり、金属材３０１ｂと弾性樹脂材３０２ｂとを重ね合わせて一体化し、略多角形或いは略円形に形成されている。
【００６６】
金属材３０１ｂは、例えば鋼板等の金属製で略平板状の略八角形であり、上面が略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３０３ｂが設けられている。図示例の凸部３０３ｂは、例えば平面状の金属材３０１ｂの４箇所の所定位置に略Ｕ字形の切込が形成され、前記切込で形成される舌片を立ち上げることにより裏面側へ突設されている。前記凸部３０３ｂは、例えば鋼板製の金属材３０１ｂに切込をプレス加工で打ち抜き、切込で形成される舌片を折曲加工など所定の機械的な加工等で下方に折り曲げて形成するが、パネル部材２０の隅部周縁と弾性樹脂材３０２ｂを介して間接的に係合する、或いは弾性樹脂材３０２ｂの前記隅部周縁との係合を補強するように、パネル部材２０の隅部周縁の個数に対応して設けると好適である。
【００６７】
金属材３０１ｂの四辺の縁部分は、後述する弾性樹脂材３０２ｂの四辺の縁部分と共に、パネル部材２０の隅部周縁の段部２０２でパネル部材２０の上段周縁と係合され、その縁部分近傍はズレ防止機能を発揮しながら段部２０２に設置され、他方、金属材３０１ｂの他の四辺の縁部分は弾性樹脂材３０２ｂの他の四辺の縁部分と共に、直線部カバー部材３０ａの長手方向の両端縁と近接して設置される。
【００６８】
弾性樹脂材３０２ｂは、例えば硬質ゴム等の弾性材料或いは軟質樹脂材料、硬質樹脂材料等の樹脂材であり、例えば射出成形等の一体成形により金属材３０１ｂの略八角形の外形と平面視で略同一形状で形成され、金属材３０１ｂの略八角形と略同一サイズ或いは金属材３０１ｂの略八角形より若干大きいサイズで形成される。弾性樹脂材３０２ｂの略八角形の縁部分の四辺は、図８に示すように、配線通路５となるパネル部材２０の隅部集合箇所である交差部空間に於いて、その段部２０２でパネル部材２０の上段周縁と係合して設置される。
【００６９】
また、弾性樹脂材３０２ｂには、裏面視で略八角形の第１突出部３０４ｂ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突出部３０５ｂとが下方に突設され、第２突出部３０５ｂは第１突出部３０４ｂから延在し、一体的に形成されている第１突出部３０４ｂと第２突出部３０５ｂ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。前記第１突出部３０４ｂ及び第２突出部３０５ｂの下部には、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いる。
【００７０】
第１突出部３０４ｂや第２突出部３０５ｂの内部は中空或いは空洞で、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突出部３０４ｂの内部には、略井桁形状或いは略格子形状或いは略十字形状で多数の補強用リブ３０６ｂが交差して設けられている。補強用リブ３０６ｂ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。
【００７１】
適度な肉厚の突出部３０４ｂ、３０５ｂを設け、その内部に補強用リブ３０６ｂ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３０２ｂ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３０１ｂと弾性樹脂材３０２ｂを複合して組み合わせ交差部カバー部材３０ｂを構成することにより、金属材３０１ｂと弾性樹脂材３０２ｂの強度が相俟って、交差部カバー部材３０ｂに十分な強度や耐久性を確保することができる。
【００７２】
弾性樹脂材３０２ｂには、金属材３０１ｂの凸部３０３ｂが嵌挿或いは係入される凹部３０７ｂが上面側に設けられ、凹部３０７ｂは第１突出部３０４ｂの略八角形の４辺の内側に形設されており、凸部３０３ｂを凹部３０７ｂに差し込む或いは嵌め込むことで金属材３０１ｂが弾性樹脂材３０２ｂに設置される。前記差込或いは嵌込構造で金属材３０１ｂは弾性樹脂材３０２ｂに容易に離脱せず安定して設置される。
【００７３】
また、弾性樹脂材３０２ｂには、上述の如くヒンジ構造のヒンジ基部４０ｂが略八角形の一辺側若しくは一角側の一部など所定部位から外側方に突出して設けられ、例えば弾性樹脂材３０２ｂと一体成形して形成される。ヒンジ基部４０ｂによるヒンジ構造は、直線部カバー部材３０ａと同様に上述したヒンジ構造であり、薄肉連結部４１０、開口部４２０、開口溝４３０、係合部４４０等を有し、係合部４４０がパネル部材２０の隅部近傍の被係合孔２０４ｂに係入され、ヒンジ構造を構成する。
【００７４】
前記ヒンジ構造により、交差部カバー部材３０ｂは、交差部に於いてパネル部材２０の四隅のうち１つの隅部に着脱可能に係合され、開閉自在に設置されると共に、４つのパネル部材２０の隅部の集合箇所に於ける開口を閉塞して閉状態とする。
【００７５】
交差部カバー部材３０ｂは、弾性樹脂材３０２ｂの第１突出部３０４ｂ及び第２突出部３０５ｂのテーパ部分による圧入で、パネル部材２０の隅部周縁相互間に係合設置され、係合設置状態では、略八角形の第１突出部３０４ｂの第２突出部３０５ｂが形成されていない各４辺が、４つのパネル部材２０の隅部周縁にそれぞれ当接して係合或いは嵌合され、前記４辺に内設される金属材３０１ｂの凸部３０３ｂが前記隅部周縁に間接的に係合或いは第１突出部３０４ｂの係合を補強し、略方形の第２突出部３０５ｂの両側方の外側面或いは側周壁が、パネル部材２０・２０間に於ける隅部周縁近傍のパネル部材２０の側辺或いは側周縁にそれぞれ当接して係合或いは嵌合される。又、弾性樹脂材３０２ｂの上面で前記第２突出部３０５ｂが形成されていない各４辺に対応する箇所は、段部２０２の上面で位置決めして設置される。
【００７６】
換言すれば、第１突出部３０４ｂの第２突出部３０５ｂを有しない箇所の外周と、第２突出部３０５ｂの両側の外周が、又は、第１突出部３０４ｂと第２突出部３０５ｂで構成される突出部或いは係合部の所定の外周が、パネル部材２０の隅部周縁相互及びパネル部材２０の側周縁或いは側辺相互で形成される被係合領域に係合或いは嵌合され、パネル部材２０の隅部周縁から隅部周縁近傍の側周縁にまで及んで係合或いは嵌合する構成であり、交差部カバー部材３０ｂの係合設置により集合する各パネル部材２０の隅部が強固に位置決め固定され、又、前記係合部がストッパーとなって、集合する４つのパネル部材２０の隅部相互により、交差部カバー部材３０ｂの位置決め固定を簡単、且つ確実に行うことができ、位置ズレを防止して高度な耐震性を得ることができる。
【００７７】
即ち、パネル部材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つのパネル部材２０の隅部に交差部カバー部材３０ｂで上方から押さえ付けられて設置されると共に、交差部カバー部材３０ｂの係合部（嵌合部）が集合箇所の各パネル部材２０の隅部周縁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、パネル部材２０或いは交差部カバー部材３０ｂの水平方向等へのズレや移動を規制し、高度な耐震効果を発揮することができる。
【００７８】
更に、パネル部材２０の隅部周縁と交差部カバー部材３０ｂの第１突出部３０４ｂが接する係合部分は、凹部３０７ｂに嵌挿されている金属材３０１ｂの凸部３０３ｂで補強されているので、前記係合部分は弾性樹脂材３０２ｂだけの場合に比し強度や係合力が高められており、各パネル部材２０の隅部の位置決め固定をより強固にし、高度な耐震性を確保することができる。又、被係合領域に弾性樹脂材３０２ｂを圧入して係合することにより、係合がきつ過ぎたり、緩すぎたりすることがなく、安定して確実な係合をすることが可能となる。又、弾性樹脂材３０２ｂは緩衝材として機能し、金属材３０１ｂによるガタツキ音等を防止できる。
【００７９】
尚、交差部カバー部材３０ｂは、上記実施形態では、別体の金属材３０１ｂと弾性材若しくは樹脂材若しくは弾性樹脂材４０２とを嵌挿し、容易に離脱しないように設ける構成としたが、交差部カバー部材３０ｂを例えば弾性樹脂等をインサート成形等により一体成形した部材としてもよい。或いは、上記実施形態では金属材３０１ｂの凸部３０３ｂが全て弾性樹脂材３０２ｂ等で覆われる例を示したが、例えばパネル部材２０の隅部周縁に接する箇所の凸部３０３ｂの先端に、弾性樹脂材３０２ｂが覆設されず、前記先端以外の側周部等に弾性樹脂材３０２ｂを取り巻くように設ける構成としてもよい。
【００８０】
また、交差部カバー部材３０ｂの金属材３０１ｂに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３０２ｂ、或いは金属材３０１ｂと一体として設ける弾性材若しくは樹脂材には、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、合成樹脂、その他の軟質或いは硬質樹脂を適宜使用可能であり、屈曲性若しくは弾性に優れる材料を用いると、ヒンジ機構として自動的に復帰する機能或いは歩行時等に発生するガタツキ音発生防止機能が良好に得られる。
【００８１】
また、交差部カバー部材３０ｂは、例えばパネル部材２０相互間に配線通路５が無く、直線部カバー部材３０ａが設置されない構成等で、パネル部材２０相互を突合せ敷設して整列配置し、パネル部材２０の隅部の交差部に交差部カバー部材３０ｂを設けた構成等にも使用でき、かような構成に於いても、パネル部材２０相互の強固な結合、交差部カバー部材３０ｂの確実な位置決め固定、ガタツキ音の防止、所定の耐震性の確保等の効果を得ることができる。
【００８２】
また、交差部カバー部材３０ｂは、図３に示す様に、１つのパネル部材２０に於いて、被係合孔２０４ａが形成され、直線部カバー部材３０ａが夫々取付けられる隣り合う２辺側の隅部に被係合孔２０４ｂを設け、前記隅部の被係合孔２０４ｂに係合して設けてもよいが、図４に示す様に、被係合孔２０４ａが形成されずに直線部カバー部材３０ａが取り付けられていない隣り合う２辺側の隅部に被係合孔２０４ｂを設け、前記隅部の被係合孔２０４ｂに係合して設け、２つの直線部カバー部材３０ａと交差部カバー部材３０ｂは、パネル部材２０の互いに離れた位置の２辺側の隅部に夫々設けることもできる。
【００８３】
前者の構成は、例えば２つの直線部カバー部材３０ａを開けた場合に、交差部カバー部材３０ｂも開けると３つのカバー部材３０ａ、３０ｂが互いに干渉し合う或いは干渉する場合があるのに対し、後者の構成は、かかる事態を回避することが可能であり、カバー部材３０ａ、３０ｂの開閉操作や施工性を一層向上することが可能となる。尚、交差部カバー部材３０ｂに対する図示しない上下左右位置にも、他のパネル部材２０に取り付けられる直線部カバー部材３０ａが設置されるが、これらの直線部カバー部材３０ａは開閉方向が逆方向など異なるため交差部カバー部材３０ｂと干渉しない。
【００８４】
［二重床構造の施工方法の説明］
次に、実施形態に於ける二重床構造の施工方法について説明する。
【００８５】
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を配設するための位置決め用の墨出し線を引く。墨出しは、パネル部材２０の敷設位置や配線通路５の位置などを考慮して行う。そして、墨出し線が引かれた支持脚ユニット１０の配設位置に、支持脚ユニット１０を所定間隔で設置する。この際にパネル部材２０の位置と配線通路５との位置関係が特定され、又、上述の如く高さ調整機構１０３を有する場合には、必要に応じて支持脚ユニット１０の高さ調整作業を行う。
【００８６】
その後、支持脚ユニット１０間に或いは支持脚１０２間に支持脚１０２で支持してパネル部材２０を敷設していく。上記実施形態では、図１、図２に示すように、４つの支持脚ユニット１０に対して１枚のパネル部材２０を敷設し、二重床構造全体の端部や外縁等以外に於けるパネル部材２０の隅部は、隣接して敷設されるパネル部材２０の隅部とそれぞれ突き合わされて隣接し、例えば４つのパネル部材２０の各隅部である四隅が互いに集合し、交差部の開口を構成する。又、隣接するパネル部材２０の側辺相互間には所定間隔が開けられ、直線部の開口を構成する。前記交差部や直線部の開口は、配線通路５の上面開口となり、前記配線通路５の上面開口を残して整然とパネル部材２０が敷設される。尚、主要幹線等の幹線配線、配線器具の設置等が必要な場合には、パネル部材２０の敷設前に先行して設置や配線を行う。
【００８７】
その後、図１〜図４に示すように、直線部カバー部材３０ａ及び交差部カバー部材３０ｂを、パネル部材２０の側辺相互間の直線部や、パネル部材２０の隅部相互間の交差部にそれぞれ設置する。各カバー部材３０ａ、３０ｂは、ヒンジ構造の係合部４４０をパネル部材２０の被係合孔２０４ａ、２０４ｂに係合して取り付け、各カバー部材３０ａ、３０ｂはヒンジ構造により設置される。前記パネル部材２０の隅部の集合箇所に交差部カバー部材３０ｂを設置することにより、パネル部材２０の隅部周緑及び前記隅部周縁近傍の側辺に交差部カバー部材３０ｂの第１突出部３０４ｂ、第２突出部３０５ｂが係合し、パネル部材２０と交差部カバー部材３０ｂは位置決め固定される。尚、パネル部材２０は直線部カバー部材３０ａの設置状態に関わらず、安定して位置決めされ設置される。
【００８８】
その後、パネル部材２０、直線部カバー部材３０ａ、交差部カバー部材３０ｂ上に、最後の仕上げとして仕上材を敷設し、二重床構造の施工が完了する。
【００８９】
そして、二重床構造の施工後にレイアウト変更や配線類の移設・増設等の変更の必要が生じ、新たに配線の敷設や配線器具等の設置を行う場合には、必要に応じて順次或いは任意位置の直線部カバー部材３０ａや交差部カバー部材３０ｂを開状態とする。カバー部材３０ａ、３０ｂは上記ヒンジ構造により簡単に回転動作で開けることができ、交差部カバー部材３０ｂは、その上面がパネル部材２０の隅部近傍の上面に接触或いは近接するまで回転して配置し、必要に応じて裏面側を若干押圧して静止した開状態を維持するようにし、又、直線部カバー部材３０ａは、その上面がパネル部材２０の側周縁或いは側辺近傍の上面に接触或いは近接するまで回転して配置し、必要に応じて裏面側を若干押圧して静止した開状態を維持するようにし、配線通路５の開口状態を維持することができる。
【００９０】
上記の如くカバー部材３０ａ、３０ｂの開状態の維持により、例えば配線通路５の上面を全て連続して開口状態で維持することが可能となり、開口状態の配線通路５に上方から配線類を落とし込んで敷設することができる。
【００９１】
更に、配線通路５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には、所定箇所のカバー部材３０ａ、３０ｂが開状態を維持し、配線通路５の開口状態が維持されているので、その配線通路５の開口を利用し、作業者がその開口に手を入れてパネル部材２０を引き上げる等、パネル部材２０の下方を露出させ、簡単に配線類等を設置することができる。例えはパネル部材２０の１枚に対し、隣り合う少なくとも２側辺の直線部カバー部材３０ａが開状態を維持していれは、作業者はそこから手を入れて、その１枚のパネル部材２０を簡単に引き上げることができる。尚、この際に反対側の２側辺の直線部カバー部材３０ａは、前記引き上げるパネル部材２０に取り付けられていないので、その直線部カバー部材３０ａが開状態で有るか無いかに関わらず、パネル部材２０の離脱、取外しは容易である。
【００９２】
尚、上記実施形態の場合、パネル部材２０の１枚に対し、隣接辺に直線部カバー部材３０ａが２枚、その２枚の直線部カバー部材３０ａ或いは前記隣接辺で構成されるパネル部材２０の隅部、又は前記隅部の対向する位置のパネル部材２０隅部に、交差部カバー部材３０ｂが１枚、それぞれ係合部４４０と被係合孔２０４ａ、２０４ｂの係合により着脱可能に設置される。
【００９３】
［実施形態の効果］
（１）上記直線部カバー部材３０ａ、交差部カバー部材３０ｂは薄肉連結部４１０、係合部４４０、開口部４２０等を有し、係合部４４０を被係合孔２０４ａ、２０４ｂに係入してヒンジ構造を構成し、パネル部材２０の段部２０１、２０２に開閉可能に設置される簡単な構成であるから、ヒンジ構造やカバー部材３０ａ、３０ｂやこれらを設置した二重床構造は複雑化することがなく、加工・製造・施工が容易である。
（２）カバー部材３０ａ、３０ｂ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。
（３）カバー部材３０ａ、３０ｂを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り、開閉動作をより一層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より一層容易に行うことができ、又、施工作業も容易に且つ効率的に行うことができる。特に、カバー部材３０ａ、３０ｂのヒンジ構造の構成部を樹脂材で一体的に形成することができ、樹脂材で形成される屈曲部或いは薄肉連結部４１０により、カバー部材３０ａ、３０ｂの回動や開閉操作をスムーズで極めて容易に行うことができ、開状態や閉状態の維持もより一層容易になる。従って、カバー部材３０ａ、３０ｂの開閉で、例えばパネル部材２０の下方或いは配線通路５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ができる。
（４）カバー部材３０ａ、３０ｂは、ヒンジ構造により開閉可能であるから、例えばパネル部材２０の隅部の交差部カバー部材３０ｂを開状態とし、隣り合う２つの直線部カバー部材３０ａを開状態に維持することにより、配線通路５の開口に容易に手を入れてパネル部材２０本体を持ち上げ着脱することが簡単にできる。これにより、パネル部材２０下の配線器具の設置や、パネル部材２０下の配線変更等が容易に可能である。
（５）カバー部材３０ａ、３０ｂは、ヒンジ係合構造でパネル部材２０側と一旦結合されれば、容易に離脱したり紛失したりすることが無く、カバー部材３０ａ、３０ｂの取り扱いが簡単であり、又、必要に応じてカバー部材３０ａ、３０ｂの着脱も自在にできる。
（６）交差部カバー部材３０ｂは、金属材３０１ｂと弾性樹脂材３０２ｂ、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３０１ｂ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３０２ｂ等に突出部３０４ｂ、３０５ｂや補強用リブ３０６ｂを形成し、より軽量化を図れると共に十分な強度を得ることができ、低コスト化を図ることもできる。
（７）交差部カバー部材３０ｂを、例えば少なくとも側外周或いはパネル部材２０との接触箇所を弾性樹脂材３０２ｂで形成する構成等とすることにより、交差部カバー部材３０ｂを圧入して設置する際に、弾性樹脂材３０２ｂ等がパネル部材２０の隅部周縁等と接触することになるので、交差部カバー部材３０ｂを容易に嵌合して設置することができると共に、簡単且つ確実に位置決め固定することができる。更に、交差部カバー部材３０ｂの被係合領域やパネル部材２０等との適宜の接触箇所を、弾性樹脂材３０２ｂ等を用いて構成することにより、パネル部材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。
（８）薄肉連結部４１０や、係合部４４０と被係合孔２０４ａ、２０４ｂとの係合等によるヒンジ構造により、直線部カバー部材３０ａや交差部カバー部材３０ｂ等のカバー部材の開閉動作をスムーズで簡単且つ確実に行うことができ、開閉時に例えば中途半端な途中位置で止まったりすることない。更に、自動的に開状態から閉状態に復帰することができ、又、閉状態の維持や開状態の維持が安定して可能である。
（９）本実施例においては、例えば図１０、図１１、図１３〜図１８に示すように、薄肉連結部４１０の薄肉領域Ｘ１の幅Ｗをヒンジ基部４０ａ、４０ｂの略中央部分で広げ、両端部分に行くに従って狭くし、幅Ｗを徐々に又は段階的に変化させるように厚肉連結部４５０との境界ラインを形成して構成し、更には、薄肉領域Ｘ１の肉厚をヒンジ基部４０ａ、４０ｂの略中央部分で薄くし、両端部分に行くに従って厚くして構成し、略中央部分で薄肉領域Ｘ１や肉厚が薄い部分を増大して可撓性を増大させ、両端部分で薄肉領域Ｘ１や肉厚が厚い部分を減少して可撓性を減少させることにより、カバー３０ａ、３０ｂやパネルの開閉に伴う適度なヒンジ効果を得ることができると共に、両端部分の薄肉領域Ｘ１や肉厚が厚い部分の減少により、ヒンジ基部４０ａ、４０ｂやヒンジ構造の強度をより向上することができ、衝撃吸収効果を得ることができる。
【００９４】
そして、その中央部分に開口部４２０を設けた場合には、ヒンジ構造として更に柔軟な可撓性を与えることができ、開閉動作をスムーズにすることが可能となり、更に、係合部４４０と開口部４２０とを接続するようにして設けた開口溝４３０による開口領域の拡大に伴って、ヒンジ基部４０ａ、４０ｂやヒンジ構造の許容可能な撓みやねじれが増大し、歩行時のぶつかりなど外部の衝撃やストレスが加わった場合にも、その衝撃を吸収する効果がより一層向上する。
【００９５】
【発明の効果】
本発明の床構造体のヒンジ構造は、簡単な構造で強度や耐久性や耐衝撃性に非常に優れると共に、カバー部材やパネル部材を開閉自在にし、且つその開状態と閉状態の両者の安定性に優れており、配線敷設等の施工作業を効率化することができる効果を奏する。例えばカバー部材の開状態及び閉状態の安定性に優れており、操作性や施工性を向上することができる。
【００９６】
また、必要に応じてカバー部材やパネル部材の開閉を容易、自在、確実に行うことができる。更に、ヒンジ構造や、ヒンジ構造を設けるカバー部材やパネル部材等を簡単な構成で且つ低コストに製造することができる。
【図面の簡単な説明】
【図１】実施形態のヒンジ構造が設けられる二重床構造の全体構成を示す斜視図。
【図２】実施形態のヒンジ構造が設けられる二重床構造の全体構成を示す平面図。
【図３】パネル部材、直線部カバー部材、交差部カバー部材の平面説明図。
【図４】別例のパネル部材、直線部カバー部材、交差部カバー部材の平面説明図。
【図５】（ａ）直線部カバー部材の詳細を示す平面図。
（ｂ）直線部カバー部材の詳細を示す正面図。
（ｃ）直線部カバー部材の詳細を示す背面図。
（ｄ）直線部カバー部材の詳細を示す裏面図。
（ｄ）直線部カバー部材の詳細を示す側面図。
【図６】（ａ）組立状態の交差部カバー部材を示す平面図。
（ｂ）組立状態の交差部カバー部材を示す側面図。
【図７】（ａ）図６の交差部カバー部材に於ける金属材を示す平面図。
（ｂ）図６の交差部カバー部材に於ける金属材を示す側面図。
【図８】（ａ）図６の交差部カバー部材に於ける弾性樹脂材を示す平面図。
（ｂ）図６の交差部カバー部材に於ける弾性樹脂材を示す裏面図。
（ｃ）図６の交差部カバー部材に於ける弾性樹脂材を示す側面図。
【図９】第１実施形態のヒンジ構造に於けるヒンジ基部の略表側を示す斜視図。
【図１０】図９のヒンジ基部の略裏側を示す斜視図。
【図１１】図９のヒンジ基部の平面図。
【図１２】第１実施形態のヒンジ構造の開閉状態を説明する一部断面側面図。
【図１３】（ａ）第２実施形態のヒンジ構造に於けるヒンジ基部を示す平面図。
（ｂ）第２実施形態のヒンジ構造に於けるヒンジ基部を示す側面図。
【図１４】（ａ）第３実施形態のヒンジ構造に於けるヒンジ基部を示す平面図。
（ｂ）第３実施形態のヒンジ構造に於けるヒンジ基部を示す側面図。
【図１５】（ａ）第４実施形態のヒンジ構造に於けるヒンジ基部を示す平面図。
（ｂ）第４実施形態のヒンジ構造に於けるヒンジ基部を示す側面図。
【図１６】（ａ）第５実施形態のヒンジ構造に於けるヒンジ基部を示す平面図。
（ｂ）第５実施形態のヒンジ構造に於けるヒンジ基部を示す側面図。
【図１７】（ａ）第６実施形態のヒンジ構造に於けるヒンジ基部を示す平面図。
（ｂ）第６実施形態のヒンジ構造に於けるヒンジ基部を示す側面図。
【図１８】（ａ）第７実施形態のヒンジ構造に於けるヒンジ基部の略裏側を示す斜視図。
（ｂ）第７実施形態のヒンジ構造に於けるヒンジ基部を示す側面図。
【符号の説明】
１０支持脚ユニット
２０パネル部材
３０ａ直線部カバー部材
３０ｂ交差部カバー部材
３０１ｂ金属材
３０２ｂ弾性樹脂材
４０ａ、４０ｂヒンジ構造
４１０薄肉連結部
４１１中央部
４１２前端部
４１３後端部
４１４端部
４２０開口部
４３０開口溝
４４０係合部
４４１半球部
４４２割溝
４５０厚肉連結部
Ｘ１薄肉領域
Ｘ２厚肉領域
Ｘ３極薄肉領域
Ｗ薄肉領域Ｘ１の幅
Ｗ’ 極薄肉領域Ｘ３の幅[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hinge structure used for a floor structure such as a double floor structure of a free access floor.
[0002]
[Prior art]
In the technical field of free access floors, double floor structures are widely used for computer rooms and office automation equipment. To improve workability in double floor structures, panel members The structure which provides a hinge structure in the cover member installed on the wiring path in between is well-known.
[0003]
As a publicly known technique related to a hinge structure that allows the cover member to be opened and closed, Patent Document 1 discloses that a cover member (lid) installed at an upper surface opening of a wiring passage is a hinge or adhesive tape at the edge of a panel member (panel body). The structure which is pivotally attached to the panel member (floor plate) is disclosed in Patent Document 2, and an engagement tool having an engagement protrusion attached to the tip is provided below the cover member (groove cover). A configuration in which an engagement tool is inserted into the engagement hole and the engagement protrusion is engaged with the engagement hole is disclosed, and Patent Document 3 discloses a cover member (first member) on the wiring path between the panel members (panel body). 1 groove lid and second groove lid) are disclosed to be opened and closed by a first hinge and a second hinge, and Patent Document 4 discloses wiring between panel members (wiring flooring). On the passage, a configuration is provided in which a projecting protruding piece that elastically bends and opens and closes at a thin wall portion It is.
[0004]
Moreover, as a well-known technique related to the hinge structure that enables connection of the panel member, Patent Document 5 provides a fitting member and a fitting hole that can be bent with a concave groove on the panel member (square floor panel). A configuration in which a bendable fitting piece of one panel member is fitted into a fitting hole of another panel member is disclosed, and Patent Document 6 discloses a male connecting piece and a female connecting hole in a panel member (small panel). A configuration is disclosed in which a male connection piece of one panel member is inserted into a female connection hole of another panel member and connected in a hinge shape, and Patent Document 7 discloses an adjacent panel member (floor for underfloor wiring). The structure which sticks the hinge coupling | bond part which is a flexible sheet | seat member over the surface of a panel is disclosed.
[0005]
Other reference techniques include Patent Documents 8 to 18.
[0006]
[Patent Document 1]
JP-A-8-53927
[Patent Document 2]
JP-A-9-158454
[Patent Document 3]
JP-A-11-81639
[Patent Document 4]
JP 2000-145115 A
[Patent Document 5]
ACT 6-85845
[Patent Document 6]
Utility Kaihei 5-35951
[Patent Document 7]
JP 2000-73540 A
[Patent Document 8]
Japanese Utility Model Publication No. 4-66248
[Patent Document 9]
Actual Kaihei 1-168471
[Patent Document 10]
Japanese Utility Model Publication No. 5-96281
[Patent Document 11]
No. 7-587
[Patent Document 12]
Japanese Patent Laid-Open No. 9-296592
[Patent Document 13]
JP-A-3-144060
[Patent Document 14]
Utility Kaihei 5-54736
[Patent Document 15]
Utility Kaihei 5-34237
[Patent Document 16]
ACT 2-45224
[Patent Document 17]
Utility Kaihei 5-16972
[Patent Document 18]
JP-A-2-202317
[0007]
[Problems to be solved by the invention]
By the way, since the hinge structure of patent documents 1-3 regarding the said cover member integrates a cover member with a panel member by a hinge structure, it can aim at prevention of installation of a cover member and loss, and the integration. By opening and closing the cover member with the above structure, it is possible to perform construction work to some extent efficiently when laying the wiring in the wiring passage, etc., and further, the cover member can be positioned and fixed to be closed. However, it is difficult to open a stable cover member by opening the stable cover member and temporarily positioning it so that the positioned open state can be stably maintained. Therefore, for example, there is a problem that the cover member naturally closes during the construction work, or the cover member needs to be opened many times, and it is difficult to sufficiently improve the efficiency of the construction work. Similarly, since the hinge structure of Patent Document 4 is also configured to push the cover member into the wiring passage to be in the open state, it is difficult to confirm the wiring state of the wiring passage, and the cover member is raised to the closed state. It is difficult to improve the efficiency of construction work.
[0008]
Furthermore, when a hinge independent of the cover member is provided as in Patent Document 3, the hinge structure becomes complicated and the number of parts increases, resulting in problems such as high cost.
[0009]
Moreover, although the hinge structure of the patent documents 5 and 6 regarding the said cover member can facilitate the connection operation | work of panel members, when wiring laying under a panel member, the panel member on a wiring channel | path is carried out. It is necessary to remove the connection and remove the panel member, and it is difficult to improve the efficiency of the construction work such as when wiring is laid. On the other hand, although the hinge structure of patent document 7 can rotate and open and close a panel member centering on a hinge coupling part, since a hinge coupling part is a flexible sheet | seat material, it is strong and durable. Another problem is inferior.
[0010]
Furthermore, in the case of a hinge structure formed with resin, the strength of the connecting portion becomes weaker as the connecting portion is made thinner to enable smooth opening and closing, and it may be mistakenly walking during the opening and closing operation or in the open state. On the other hand, it becomes easy to break due to an impact applied by stepping, contacting, bumping, etc.On the other hand, for example, the thicker the connecting part considering the strength, the more difficult the smooth opening and closing operation becomes, and the halfway open state at the halfway position Thus, the half-open state is a factor inducing breakage. For this reason, it is difficult to set the thickness of the connecting portion and the design is very difficult.
[0011]
The present invention is proposed in view of the above problems, has a simple structure and excellent strength and durability, allows the cover member and the panel member to be opened and closed, and has excellent stability in both the open state and the closed state. An object of the present invention is to provide a hinge structure of a floor structure that can improve the efficiency of construction work such as wiring laying.
[0012]
[Means for Solving the Problems]
The hinge structure of the floor structure according to the present invention includes an engaging means provided via a connecting means having a thin connecting portion on the cover member or panel member, and the engaging means provided at a predetermined position of the floor structure. In the hinge structure of the floor structure having the engaged means that can be opened and closed, the width W of the thin area X1 of the thin connecting portion of the connecting means is approximately the center or approximately the center. It is characterized by being formed so as to become gradually narrower from the vicinity of the portion toward the substantially end portion.
[0013]
The hinge structure of the floor structure according to the present invention includes an engaging means provided via a connecting means having a thin connecting portion on the cover member or the panel member, and an engaging means provided at a predetermined position of the floor structure. In a hinge structure of a floor structure having an engaged means to be engaged and capable of opening and closing a cover member or a panel member, the thin area X1 of the thin connection portion of the connection means is substantially hemispherical or substantially hemispherical It is formed with a curved surface and is recessed.
[0014]
The connecting means may be, for example, a hinge base portion in which a thin connecting portion is formed at a bent portion and a thick connecting portion is formed at the other portion. The engagement portion or the like having a substantially bowl shape having a groove can be used, and the engagement means can be an engagement hole or the like provided in the panel member, for example.
[0015]
The engaging means is preferably configured to be detachably or detachably engaged with the engaged means. However, the engaging means may be configured to be detachably engaged. It is preferable that the engaging means is provided, and the engaging means is preferably provided substantially at the tip of the connecting means. Further, the above-mentioned engaged means can be provided at a necessary appropriate position of the floor structure, for example, a predetermined position of the support member that supports the panel member, a predetermined position of the panel member, a predetermined position of the cover member, etc. In addition, it is possible to adopt a configuration in which engaged means are appropriately provided at predetermined locations of a plurality of different members such as all or an appropriate combination of these members.
[0016]
Furthermore, the hinge structure of the floor structure of the present invention is characterized in that an opening is formed in at least a part of the thin-walled connecting portion of the connecting means. The opening is formed, for example, in the predetermined region X1 of the thin-walled connecting portion, but is preferably formed in the substantially central portion of the thin-walled connecting portion or the substantially central portion in the predetermined region X1 of the thin-walled connecting portion. The shape of is appropriate, but is preferably formed in a substantially circular shape in plan view.
[0017]
Furthermore, the hinge structure of the floor structure according to the present invention is characterized in that an opening provided in a thin connecting portion of the connecting means is substantially connected to an opening groove extending to at least a position near the engaging means. To do. For example, an opening is provided in a thin area or the like of the connecting means, and an opening groove is continuously provided from the opening of the connecting means to the engaging means.
[0018]
In the present invention, the width W of the thin area of the thin connecting portion of the connecting means is formed longer than the substantially end portion in the approximate center portion or in the vicinity of the approximate center portion, or the approximate center in the width direction T of the connecting means. A thin region having a small thickness near the central portion or the substantially central portion is formed so as to be larger than a thin region having a thin thickness at the substantially end portion, and the thickness at the substantially end portion in the width direction T of the connecting means is thick. A configuration in which the reinforcing region or the reinforcing portion is formed so as to be larger than the thick reinforcing region or the reinforcing portion in the vicinity of the central portion or in the vicinity of the central portion, or the width W of the thin region of the thin connecting portion of the connecting means or It is also possible to adopt a configuration in which the size is changed at a substantially central part or a vicinity of the central part and a substantially end part in the width direction T of the connecting means.
[0019]
Further, the thinned region where the connecting means is thin is formed so as to gradually decrease from the substantially central portion or the vicinity of the central portion in the width direction T of the connecting means toward the substantially end portion, A structure in which the thick reinforcing region or reinforcing portion is formed so as to gradually increase from the substantially central portion or the vicinity of the central portion in the width direction T of the connecting means toward the substantially end portion, or a predetermined connection of the connecting means. The thickness of the region is minimum (including thickness 0) at a substantially central portion in the width direction T of the connecting means, and is maximum at a substantially end portion in the width direction T of the connecting means. It is possible to adopt a configuration in which the thickness gradually increases from a substantially central portion toward a substantially end portion, such as gradually increasing or gradually increasing, and the width W of the thin region is curved. Increasing is preferred.
[0020]
Further, the thinned region of the thin connecting portion of the connecting means may be provided with a portion that increases in thickness from the substantially central portion in the width direction T of the connecting means or the vicinity of the substantially central portion toward the substantially end portion. The portion that increases the thickness may be the thin connection portion or the entire thin region, but for example, all in the region near the center line of the thin region extending in the width direction T of the connection means or all except the opening In a region other than the centerline vicinity, the thickness may be increased from the substantially central portion in the width direction T toward the substantially end portion in the width direction T. The wall thickness can be increased gradually or stepwise, and is preferably increased in a curvilinear manner. Further, it is also possible to adopt a configuration in which the thin area of the thin connecting portion of the connecting means gradually increases in thickness from the substantially central portion or the vicinity of the central portion in the protruding direction L of the connecting means toward the substantially end portion. .
[0021]
In addition, a structure in which the thin-walled connecting portion of the connecting means is separated from the thick-walled connecting portion in which the thin-walled connecting portion is connected by a substantially R-curved boundary line, or the thin-walled connecting portion of the connecting means has a substantially hemispherical shape or a substantially hemispherical shape The thin-walled connecting part is thicker than the thin-walled connecting part or the thick-walled connecting part or the reinforcing part is separated by a substantially arc-shaped boundary line, or the connecting means is a thin-walled connection. A first region X1 in which a portion is formed and a second region X2 in which a thick connecting portion is formed, an opening is formed at least in the first region X1, and the periphery of the opening or A part thereof extends to the second region X2 to form a boundary line or a part of the boundary line, and the first region X1 and the second region X2 are separated, or the region of the thin connecting portion and the thick wall It is possible to adopt a configuration in which the area of the connecting portion is divided.
[0022]
In addition, each part of the hinge structure such as the connecting means, the thin connecting part, the thick connecting part, the engaging means or the engaged means in the present invention should be formed of one appropriate material or a combination of a plurality of materials. However, it is preferable that at least the connecting means, or the thin-walled connecting portion and the thick-walled connecting portion or the reinforcing portion, or the thin-walled connecting portion and the vicinity thereof are formed of an elastic material such as an elastic resin.
[0023]
Further, the hinge structure of the present invention has a predetermined support on the floor surface for tiles, flooring materials, laying floor materials, free access floors for OA floors on which wiring is laid, and panel members. It can be used as appropriate for floor structures including a double floor structure that is supported by members and provided with cover members between panels, etc., and the panel members and cover members can be opened and closed. Appropriate members are included.
[0024]
[Action]
In the hinge structure of the floor structure of the present invention, for example, a thin connecting portion thinner than the normal thickness of the connecting means is provided in the connecting means leading to the engaging means, and the cover member and the panel member are made smooth by the thin connecting portion. Further, the width W of the thinned portion of the thin coupling portion is made narrower at the end than the central portion or the vicinity of the central portion in the width direction T of the coupling means, and particularly the width of the thinned portion. By forming W so that it gradually becomes narrower from the substantially central part or the vicinity of the substantially central part toward the substantially end part, the open state of the cover member and the panel member can be stably maintained, Durability is improved. In other words, it is possible to obtain a good hinge effect with appropriate bending, flexibility, and stability, which enables the cover member and the panel member to be opened and closed by smooth rotation and to maintain the open state stably. Even when an impact is applied, the impact force can be dispersed and absorbed to prevent breakage.
[0025]
Preferably, the thin-walled connecting portion and the thick-walled connecting portion are separated by a substantially R-curved boundary line that extends from the end portion toward the center, or the thin-walled connecting portion is substantially hemispherical or substantially hemispherical. By denting the thin area formed by the curved surface of the shape, a good hinge effect with more appropriate bending, flexibility and stability can be obtained, and strength and impact resistance can be further increased. It becomes.
[0026]
Further, by providing an opening formed in the central portion of the thin connecting portion, preferably by connecting the opening of the thin connecting portion with an opening groove extending to a position in the vicinity of the engaging means, an even more flexible bending can be achieved. A good hinge effect with flexibility and high stability can be obtained, and it is possible to absorb impacts in the horizontal direction etc. due to elasticity by the opening, etc., and it is possible to further improve strength, impact resistance, etc. It becomes.
[0027]
Furthermore, the thin-walled region of the thin-walled connecting portion gradually increases in thickness from the substantially central portion or the vicinity of the central portion in the width direction T of the connecting means toward the substantially end portion, thereby improving strength and impact resistance. On the other hand, it is possible to obtain a favorable hinge effect having even more appropriate flexibility, flexibility, and high stability.
[0028]
Furthermore, by forming the thin-walled connecting portion and the vicinity thereof with an elastic material, a more appropriate flexibility of bending and flexibility can be obtained, and a smoother opening and closing operation can be achieved. Preferably, the cover member is made of an elastic resin. In addition, by being integrally formed with the panel member, manufacturing becomes easy and cost reduction can be achieved.
[0029]
Further, the structure in which the engaging means is engaged with the engaged means makes it easy to attach and detach the engaging means to and from the engaged means, and in addition, it is possible to maintain a stable engaged state. In addition, it is possible to improve the stability during the opening / closing operation of the panel member.
[0030]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, specific embodiments of the hinge structure of the double floor structure will be described with respect to the hinge structure of the floor structure according to the present invention. In addition, the hinge structure of this invention is applicable also when connecting panel members, for example besides the structure which installs a cover member in a panel member.
[0031]
[Description of overall structure of double floor structure]
First, the whole structure of the double floor structure where the hinge structure of embodiment is provided is demonstrated. 1 to 3 relate to an example of the double floor structure in the embodiment, FIGS. 1 and 2 are perspective views and plan views showing the entire structure of the double floor structure, and FIG. 3 is a panel member and a straight part cover member. FIG. 4 is an explanatory plan view of a cross section cover member, FIG. 4 is a plan view of another example of a panel member, a straight section cover member, and a cross section cover member, FIG. 5 is a diagram showing the straight section cover member, and FIGS. It is explanatory drawing which shows a cross | intersection part cover member.
[0032]
The double floor structure provided with the hinge structure of the embodiment is a double floor structure of a separated support leg type as shown in FIGS. 1 to 3, and the double floor structure has a height as a predetermined support member. An adjustable support leg unit 10 is disposed at a predetermined position on the floor surface. The support leg unit 10 is provided with four support legs 102 arranged at substantially corners of the base 101 so as to form a floor board. A substantially square flat panel member 20 is supported and laid by the support legs 102. The wiring passages 5 are formed in a lattice pattern continuously in the vertical and horizontal directions below the panel members 20 such as between the supporting legs 102 and 102 disposed in the supporting leg unit 10. The cover member 30 is provided in the opening, and the straight portion cover member 30a is provided to cover the upper surface opening of the wiring passage 5 at the straight portion between the substantially side edges of the panel members 20 and 20, and the corners of the four panel members 20 are provided. The intersection cover member 30 b is covered with the upper surface opening of the wiring passage 5 at the intersection where the portions are gathered.
[0033]
The support leg unit 10 has a substantially rectangular flat plate-like base 101 laid on the floor surface, and four support legs 102 are erected at regular intervals at substantially corners on the base 101, A wiring path 5 is formed between the support legs 102 disposed at a predetermined interval, or a disposed path 5 is formed between the support legs 102.
[0034]
Each support leg 102 is provided with a height adjusting mechanism 103, and a nut portion 103b is screwed into a bolt leg portion 103a that is screwed into a substantially upper half or the like. A substantially ring-shaped panel receiving portion 103c that supports corners of a panel member 20 described later is formed at the bottom or top. On the upper surface of the nut portion 103b, an opening 103d into which a nut turning tool can be inserted is formed, for example, a hexagonal opening into which a hexagon wrench can be inserted.
[0035]
The panel member 20 is a substantially square plate material, and its four corners have a shape with the tip cut off at approximately 45 degrees. Further, a step portion 201 for receiving the straight portion cover member 30a is formed in the vicinity of the four long sides or the side periphery of the front, rear, left and right of the panel member 20, and the intersection portion cover member 30b is also received near the periphery of the corner portion. A step portion 202 is formed, and step portions 201 and 202 lower than the upper surface of the panel member 20 are continuously formed along the entire periphery.
[0036]
At the four corners of the panel member 20, for example, support leg insertion holes 203 large enough to allow the nut portion 103b to be inserted or loosely inserted are provided, and the panel member 20 supports the nut portion 103b of the support leg 102. It is laid and positioned so as to be inserted into the insertion hole 203, and the bottom surface of the panel member 20 is received by the panel receiving portion 103 c and supported by the support legs 102. The panel member 20 laid on the support leg unit 10 is positioned with respect to the support leg unit 10, the adjacent panel member 20, and the like by insertion of the nut portion 103 b into the support leg insertion hole 203 and the like. Therefore, the panel members 20 are arranged at predetermined positions and are firmly coupled to each other.
[0037]
The straight portion cover member 30a is disposed between the substantially side edges of the panel members 20 and 20, and has a substantially flat plate shape having a substantially rectangular shape in plan view, as shown in FIGS. Thus, two hinge bases 40a are provided at predetermined positions so as to protrude outward from one side or one side end of the side sides extending in the longitudinal direction. Further, the stepped portion or step 201 lower than the upper surface of the panel member 20 is provided with an engaged hole 204a as a predetermined engaged means at a predetermined position corresponding to the location where the hinge base 40a is formed.
[0038]
The intersection cover member 30b is disposed between the peripheral edges of the corners of the panel member 20, and as shown in FIGS. 1 to 3 and 6 to 8, The hinge base portion 40b is provided so as to protrude outward from one side or one end of the substantially octagonal shape. Further, at least one corner of the panel member 20 corresponds to the position where the hinge base 40b is provided at the stepped portion 202 or the stepped portion 202 formed at a position closer to the periphery than the support leg insertion hole 203 on the upper surface. At a predetermined position, an engaged hole 204b is provided as a predetermined engaged means.
[0039]
In the double floor structure of FIGS. 1 to 3, the engaged holes 204a corresponding to the hinge base 40a are provided on the two adjacent sides of the panel member 20, and the engaged holes 204a of the engaging portion 440 described later. The straight portion cover member 30a is provided on the two adjacent sides by engagement with the hinge base, and the hinge base portion is provided at the corner of the panel member 20 constituted by the two adjacent sides or the corner on the two side sides. 40b is provided with an engaged hole 204b, and an intersection cover member 30b is provided at the corner by engagement of an engaging portion 440 described later with an engaged hole 204b. 30a and one unit of the intersection cover member 30b are configured.
[0040]
In addition to the double floor structure shown in FIGS. 1 to 3, for example, the double floor structure shown in FIG. 4 is configured by the two adjacent sides provided with the engaged hole 204a and the straight portion cover member 30a. Of the panel member 20 to be formed, a corner facing the corner on the side of the two sides, or a corner constituted by two sides where the engaged hole 204a and the linear portion cover member 30a are not provided. In addition, an engaged hole 204b corresponding to the hinge base 40b may be provided, and the intersection cover member 30b may be provided at the corner portion by engaging the engaging portion 440 with the engaged hole 204b described later. . With this configuration, it is possible to prevent interference between the straight portion cover member 30a and the intersecting portion cover member 30b when the open state is set.
[0041]
[Detailed description of hinge structure]
As shown in FIGS. 5 to 8 and FIGS. 9 to 12, the hinge base 40a of the straight part cover member 30a and the hinge base 40b of the intersecting part cover member 30b are substantially U-shaped flat plate shapes as shown in FIGS. 30 is provided so as to project laterally from the side end or end portion of 30 and is provided from the vicinity of the base of the projecting hinge base portions 40a, 40b to the approximate center of the hinge base portions 40a, 40b in the projecting direction L. Part 410, a substantially circular opening 420 opened in thin-walled connecting part 410, a long groove opening groove 430 provided continuously with opening 420, and a position in the vicinity of a substantially Y-shaped center of opening groove 430. A substantially hook-shaped engagement portion 440 provided so as to project downward.
[0042]
The thin connecting portion 410 is formed to be thinner than the flat plate portions of the hinge base portions 40a and 40b, and is flexible and bent. Further, the thin connecting portion 410 includes the hinge base portions 40a and 40b. A thin region X1 formed with a substantially hemispherical or substantially hemispherical curved surface is recessed on the lower side, and the thick connecting portion 450 or the reinforcing portion having the same thickness as the whole of the hinge base portions 40a and 40b protrudes in the protruding direction L. The thin-walled connecting portion 410 and the thick-walled connecting portion 450 or the thin-walled region X1 and the thick-walled region X2 are partitioned by a boundary line S. And the width W of the thin region X1 of the thin connection portion 410 is formed so as to be wide at the center portion 411 in the width direction T of the hinge base portions 40a and 40b and narrow toward the end portion 414 side in the width direction T, It changes in the center part 411 and the edge part 414. FIG.
[0043]
That is, the thin-walled connecting portion 410 is formed in the protruding direction L of the hinge base portions 40a and 40b from the central portion 411 of the thin-walled region X1 toward the boundary line S of the front end portion 412 or the rear end portion 413. The thin wall connecting portion 410 or the thin wall region X1 is formed gradually or stepwise from the central portion 411 toward the end portion 414 in the width direction T of the hinge base portions 40a and 40b. In the width direction T of the hinge base portions 40a and 40b, the end portions 414 in the width direction T of the hinge base portions 40a and 40b from the central portion 411 of the thin region X1 are formed. The width W of the thin region X1 gradually decreases toward the center, and the boundary line S in plan view is centered from the end portion 414 in the width direction T of the hinge base portions 40a and 40b. Gradually formed in a shape rounded outwardly toward the 411, the thin region X1 is in a plan view elliptical shape hinge base 40a, the width direction T of 40b with the longitudinal direction.
[0044]
Further, in the thin region X1, as shown in FIGS. 10 and 11, the thin connection portion 410 or the ultrathin region X3 having the thinnest thickness in the thin region X1 is located near the central portion 411 or the opening. From 420 to the edge part 414 of the hinge base part 40a, 40b in the width direction T, it is provided in the taper shape or substantially triangular shape so that the width W 'may become narrow, and the ultra-thin area | region X3 is hinged from the center part 411. The base portions 40a and 40b are provided toward the end portions 414 and 414 on both sides in the width direction T, respectively.
[0045]
The thickness of the thin-walled connecting portion 410 or the thin-walled region X1 is the thinnest in the vicinity of the central portion 411, or is made zero at the opening 420, and is changed so as to increase toward the front end portion 412 or the rear end portion 413, Good flexibility and torsion can be obtained by changing the width W of the thin region X1 from the central portion 411 toward the end portions 414 and 414 so as to gradually decrease and further increase the thickness. However, high strength and durability can be obtained. Then, by adjusting and setting the change in the thickness of the thin region X1, the change in the width W and size of the thin region X1, and the change in the area and size of the opening 420, the required flexibility and twistability are set. And it is possible to obtain required strength and durability. In particular, when the opening portion 420 is provided in the central portion 411, it is possible to obtain even better flexibility, flexibility, and twistability while obtaining strong rigidity and bonding force at both end portions 414 and the like.
[0046]
Further, the structure of the thin-walled connecting portion 410 can provide a hinge structure having a well-balanced elastic restoring force and bending stability. For example, as shown in FIG. 12, the cover member 30 can be opened and closed smoothly. When the member 30 is opened to a certain extent, the cover member 30 is elastically restored by the elastic restoring force and naturally closes. When the member 30 is opened to a certain extent, the bending stability is increased. It is possible to constitute a hinge structure having a good hinge effect that maintains the open state stably and, when in the closed state, stably maintains the closed state.
[0047]
Further, as shown in FIGS. 9 to 11, the engaging portion 440 that is detachably or detachably engaged with the engaged holes 204a and 204b, which are predetermined engaging means, is downward from the hinge base portions 40a and 40b. Is formed into a substantially hemispherical hemispherical portion 441 that is substantially divided into three at the tip, in other words, substantially hemispherically shaped, and has a substantially Y-shaped split when viewed from the back along the protruding direction. A groove 442 is formed, and the hemispherical portion 441 is divided into three. In this embodiment, in the hinge bases 40a and 40b, the substantially Y-shape of the dividing groove 442 is formed as it is connected to the substantially Y-shape of the opening groove 430, and the dividing groove 442, the opening groove 430, and the opening 420 are connected. Is formed.
[0048]
The engaging portion 440 has a shape and a size corresponding to the engaged holes 204a and 204b provided on the panel member 20 side, and for example, the hemispherical portion 441 of the engaging portion 440 is divided by pushing from above. The hemispherical portion 441 that is inserted into the engaged holes 204a and 204b while being reduced in diameter by the groove 442 and protrudes from the engaged holes 204a and 204b is expanded and engaged. Furthermore, the upper surface of the hemispherical portion 441 is formed in a tapered shape that becomes narrower inward as shown in FIGS. 9 and 10, for example, and the protruding hemispherical portion 441 is split into a groove 442 by pulling upward, for example. Therefore, it is possible to extract from the engaged holes 204a and 204b while reducing the diameter.
[0049]
In the example of FIGS. 9 to 11, the dividing groove 442 is formed in a substantially Y shape when viewed from the back side. For example, the dividing groove 442 is formed in a substantially cross shape when viewed from the back side or a substantially single shape when viewed from the back side. Correspondingly, the number of divided parts of the hemispherical part 441 is appropriate as long as it is at least two, such as three, four, and two. The split groove 442 may not be formed so as to be connected to the opening groove 430 or the opening 420.
[0050]
In addition, the opening groove 430 formed integrally connected to the opening 420 of the thin-walled connecting portion 410 is formed by a substantially Y-shaped long groove that branches toward the distal end direction of the hinge base portions 40a and 40b. The hinge bases 40a and 40b extend in the projecting direction L and are formed at substantially the center thereof. By providing the opening groove 430, the area of the opening portions of the hinge base portions 40a and 40b can be enlarged, and the thick connecting portion 450 is eliminated at the center portion, thereby reducing the thick region, and more flexibility and A hinge structure with high flexibility can be obtained.
[0051]
The hinge bases 40a and 40b, the thin connection part 410, the opening 420, the opening groove 430, the engagement part 440, the split groove 442, the thick connection part 450, etc. The structure in which the opening 420, the opening groove 430, and the dividing groove 442 are connected to each other is appropriately set within a range in which the above-described operational effects or a part of the operational effects can be obtained, or a common function or operational effect. Also, by adjusting these appropriately, it is possible to configure the hinge structure that can set the required torsion, flexibility and flexibility and can be smoothly opened and closed, etc. In order to maintain the return function, the open state, and the closed state, the hinge bases 40a, 40b and the like are appropriately set to have a predetermined thickness, width, etc. according to a predetermined material.
[0052]
Further, the hinge structure is appropriate as long as it is a structure capable of maintaining a good automatic return function of a straight line cover member 30a and an intersection cover member 30b, which will be described later, and maintaining an open state and a closed state. In addition, the hinge structure which can maintain favorable flexibility and elasticity, an open state, and a closed state irrespective of an elastic material by the said hinge structure can be comprised.
[0053]
Further, the hinge base portions 40a and 40b or the thin-walled connecting portion 410 can be bent several times after resin molding or immediately after the resin molding so that the hinge effect such as elasticity, the strength of the hinge and the coupling by the hinge, the durability of the hinge bending can be achieved. It is possible to improve properties.
[0054]
For example, as shown in FIG. 13, the opening groove 430 and the split groove 442 are integrated or substantially integrated at the hinge bases 40 a and 40 b, and the opening groove 430 and the opening 420 are not connected to each other, and are connected thinly. The portion 410 or the thin-walled region X1 is formed with a substantially semi-egg-shaped curved surface, or as shown in FIG. 14, a substantially single-letter-shaped dividing groove 442 is formed to be connected to the opening groove 430 at the hinge base portions 40a and 40b. The substantially R-curved boundary line S of the thin-walled connecting portion 410 abuts at both ends in the width direction T of the hinge base portions 40a and 40b, and the thin-walled connecting portion 410 or the thin-walled region X1 is formed with a substantially semi-egg-shaped curved surface. Alternatively, as shown in FIG. 15, a substantially cross-shaped split groove 442 of the engaging portion 440 is formed to be connected to the opening groove 430 at the hinge base portions 40a and 40b, and the opening 420 is formed in a substantially square shape in plan view. A thin-walled region X1 is formed by the substantially square and the substantially triangular region disposed on both sides of the substantially square or the substantially triangular region, and the substantially triangular region extends from a substantially center in the width direction T of the hinge base portion 40a (40b). It is good also as a structure etc. which increase thickness toward a substantially edge part.
[0055]
Further, for example, as shown in FIG. 16, the engaging portion 440 is not formed with the dividing groove 442, and the opening groove 430 is formed to be connected to the substantially square opening 420. The thin rectangular region X1 is formed by the substantially square region narrower than the substantially square side or the substantially square region disposed on both sides thereof, and the substantially square region is the width direction of the hinge base 40a (40b). A structure in which the thickness increases from the substantially center of T toward the substantially end portion, or, as shown in FIG. 17, the opening 420 has a substantially octagonal shape in plan view, and is arranged on the substantially octagonal shape of the opening 420 and on both sides thereof. The thin rectangular region X1 is formed by a substantially rectangular region having the same width as one side of the substantially octagonal shape or the substantially rectangular region, and the substantially rectangular region is substantially the width direction T of the hinge base portion 40a (40b). Structure that increases the wall thickness from the center toward the end It may be.
[0056]
Further, the opening 420 may not be formed in the central portion 411 of the thin connection portion 410. For example, as shown in FIG. 18, the thin connection portion 410 is formed within the thin region X1 or deviating from the region X1. Without providing the opening 420, the thickness of the thin-walled connecting portion 410 is increased continuously or stepwise so that the thickness of the thin connecting portion 410 is minimized at the approximate center in the width direction T and maximized at the approximate end in the width direction T. Further, the thin region X1 may be formed with a substantially semi-egg-shaped curved surface, and the cut 415 may be formed in the width direction T of the hinge base 40a (40b).
[0057]
Further, the thin connecting portion 410 of the first embodiment forms an opening 420 in the thin region X1, and the periphery of the opening 420 extends to the thick region X2 of the thick connecting portion 450 in plan view. In the plan view, the periphery of the opening 420 forms a part of the substantially curved boundary line S. The boundary line S or the region surrounded by the boundary line S or the thin region X1 is substantially elliptical, Various shapes such as a substantially rhombus shape, a substantially square shape, a substantially triangular shape, a combination of these appropriately, a step or a staircase shape, a substantially polygonal shape, a predetermined curved shape or a linear shape, the shapes of FIGS. It can be set and formed.
[0058]
Further, a part of the boundary line S is in the vicinity of the front end portion 412 and the rear end portion 413 or in the protruding direction L of the hinge base portions 40a and 40b, at a position corresponding to the opening 420 or corresponding to the peripheral edge of the opening 420. It is not limited to the structure formed, it is not formed in a position that does not contact or corresponds, or is formed at a position that contacts the opening 420 or corresponds to the periphery of the opening 420 in the width direction T of the hinge bases 40a and 40b. It is possible to have a configuration or the like.
[0059]
In addition, the hemispherical portion 441 is provided at the distal end portion of the engaging portion 440 having the hinge structure, but the distal end portion of the engaging portion 440 has an arbitrary protrusion shape that can be press-fitted such as a substantially R shape or a substantially saddle shape. The linear portion cover member can be arbitrarily changed as long as the engaging portion 440 or its distal end portion is inserted into the engagement holes 204a, 204b, which will be described later, and is not easily detached. 30a, the hinge part 440 of the intersection cover member 30b or the tip thereof is inserted into the engaged holes 204a, 204b from above, and the cover members 30a, 30b can be opened and closed by a thin coupling part 410 or the like serving as a bent part. Can be configured.
[0060]
[Explanation of linear cover member]
As shown in FIGS. 1 to 5, the straight portion cover member 30 a has a common shape in a substantially rectangular plate shape that covers the wiring passage 5, is formed of an elastic resin material, and is adjacent to the panel member 20. It is provided on each side. On one long side of the straight part cover member 30a, a hinge base 40a is formed protruding sideways by the hinge structure of the above embodiment, and the straight part cover member 30a is rotated on the hinge base 40a as described above. A thin-walled connecting portion 410 that bends when opening and closing, an engagement portion 440 having a substantially projecting shape that is detachably engaged with or engaged with the engaged hole 204a of the panel member 20, and the like are provided. Yes. The engagement portion 440 is formed in two substantially arrow shapes having a split groove 442, a substantially conical shape, or the like in order to facilitate attachment / detachment by an elastic force.
[0061]
As shown in FIG. 5, as shown in FIG. 5, the cover member 30 a is securely fitted and positioned on the back surface side of the straight portion cover member 30 a by being dropped between the panel members 20 and between the step portions 201 in the vicinity of the side periphery, thereby preventing displacement. As described above, the protrusions 31a are formed along the longitudinal direction on both sides with a predetermined interval in the width direction, and the protrusions 31a and 31a on both sides are formed on the side peripheral edges of the step portions 201 and 201 of the panel members 20 and 20 on both sides. It fits inside and functions as an engaging installation part. Further, a large number of reinforcing ribs 32a are installed between the protruding ridges 31a and 31a on both sides at a predetermined interval, and the overall shape is substantially a ladder. With the structure in which the protrusions 31a and 31a and the reinforcing ribs 32a are integrally formed to project downward, when the cover member 30a is closed, the cover member 30a is dropped between the step portions 201 and 201 to be securely fitted. Positioning and fixing can be performed, and for example, earthquake resistance can be improved. Further, the surface side of the linear portion cover member 30a is formed to be substantially flat.
[0062]
The linear portion cover member 30a having the hinge structure of the above embodiment can be smoothly opened by the thin region X1 of the thin connecting portion 410 and the like, and the elastic force based on an appropriate thickness of the thin region X1 covers the cover. The member 30a has an automatic return function that automatically returns from the open state to the closed state after the opening operation, and the manual operation for closing the straight portion cover member 30a after wiring laying such as additional wiring can be saved. Work efficiency can be improved. Furthermore, since it is possible to maintain the open state when bent and opened by a certain degree of open operation, the open state of the cover member 30a can be maintained or closed as necessary in combination with the automatic return function. It is possible to improve the efficiency and convenience of work.
[0063]
In addition, the hinge structure applicable to the linear part cover member 30a is appropriate other than the hinge structure of the above-described embodiment. For example, when the linear part cover member 30a is turned to the open state, it is elastically restored when the hand is released. In addition, it is possible to provide a hinge structure having a function of returning automatically, such as having a function of returning to a closed state and returning.
[0064]
In addition, as a material for forming the linear portion cover member 30a, a soft or hard rubber material, polypropylene (PP), ABS, vinyl resin, synthetic resin, or other soft or hard resin can be used as appropriate. When a material that is formed by integral molding of a hard resin and that is excellent in flexibility or elasticity is used, a function of automatically returning as a hinge mechanism or a function of preventing the generation of rattling noise generated during walking or the like can be obtained satisfactorily. In addition, the linear portion cover member 30a may be made of a metal material and an elastic resin material in the same manner as an intersecting portion cover member 30b described later.
[0065]
[Description of intersection cover member]
As shown in FIGS. 6 to 8, the intersection cover member 30b is formed by using a substantially plate-like metal material 301b as a base and covering a substantially lower surface of the metal material 301b with an elastic resin material 302b. The material 301b and the elastic resin material 302b are overlapped and integrated to form a substantially polygonal shape or a substantially circular shape.
[0066]
The metal material 301b is made of a metal such as a steel plate and has a substantially flat plate-like substantially octagonal shape. The top surface of the metal material 301b is substantially flat, and a plurality of claw-shaped protrusions 303b are provided on the back surface side. . The convex portion 303b in the illustrated example has, for example, substantially U-shaped cuts formed at four predetermined positions on a planar metal material 301b, and protrudes toward the back side by raising a tongue piece formed by the cuts. It is installed. The convex portion 303b is formed by punching a cut in a metal material 301b made of, for example, a steel plate by pressing, and bending a tongue piece formed by the cutting downward by a predetermined mechanical process such as a bending process. The corner periphery of the panel member 20 is indirectly engaged with the corner periphery of the panel member 20 via the elastic resin material 302b, or the engagement with the corner periphery of the elastic resin material 302b is reinforced. It is preferable to provide the number corresponding to the number.
[0067]
The edge portions of the four sides of the metal material 301b are engaged with the upper edge of the panel member 20 at the step portion 202 at the corner edge of the panel member 20 together with the edge portions of the four sides of the elastic resin material 302b described later, and the vicinity of the edge portion. The edge portion of the other four sides of the metal material 301b is installed along with the other four sides of the elastic resin material 302b in the longitudinal direction of the linear portion cover member 30a while exhibiting the slip prevention function. Installed close to both edges.
[0068]
The elastic resin material 302b is, for example, an elastic material such as hard rubber, or a resin material such as a soft resin material or a hard resin material. For example, the elastic resin material 302b is substantially formed in a substantially octagonal outer shape and a plan view of the metal material 301b by integral molding such as injection molding. It is formed in the same shape and is formed in a size substantially the same as the substantially octagonal shape of the metal material 301b or slightly larger than the substantially octagonal shape of the metal material 301b. As shown in FIG. 8, the four sides of the substantially octagonal edge portion of the elastic resin material 302 b are arranged at the step portion 202 in the intersecting space that is a corner gathering location of the panel member 20 to be the wiring passage 5. It is installed in engagement with the upper peripheral edge of the member 20.
[0069]
The elastic resin material 302b has a first protrusion 304b that is substantially octagonal in the rear view and a second protrusion 305b that is substantially square in the rear view that protrudes outward from the four sides of the substantially octagon. The projecting portion extends from the first projecting portion 304b, and the projecting portion constituted by the integrally formed first projecting portion 304b and the second projecting portion 305b is entirely viewed from the rear side. It has a cross shape. A tapered portion that is inclined inwardly downward is provided at a lower portion of the first protrusion 304b and the second protrusion 305b.
[0070]
The inside of the 1st protrusion part 304b and the 2nd protrusion part 305b is hollow or a cavity, The upper surface side is opening, The peripheral wall part is formed in moderate thickness. In addition, a large number of reinforcing ribs 306b are intersected with each other in a substantially cross-shaped shape, a substantially lattice shape, or a substantially cross shape inside the first projecting portion 304b. The reinforcing rib 306b and its installation form are appropriate as long as the structure can improve the strength, for example, provided radially.
[0071]
Providing protrusions 304b and 305b with an appropriate thickness and providing reinforcing ribs 306b inside the protrusions 304b and 305b can reduce the amount of resin material during resin molding, reduce the weight, reduce costs, etc. It is possible to ensure sufficient strength and durability of the material 302b, and further, by combining the metal material 301b and the elastic resin material 302b to form the combined intersection cover member 30b, the metal material 301b and the elastic resin are combined. Combined with the strength of the material 302b, sufficient strength and durability can be secured for the intersection cover member 30b.
[0072]
The elastic resin material 302b is provided with a concave portion 307b into which the convex portion 303b of the metal material 301b is inserted or engaged, and the concave portion 307b is formed inside the four sides of the substantially octagonal shape of the first projecting portion 304b. The metal material 301b is installed on the elastic resin material 302b by inserting or fitting the convex portion 303b into the concave portion 307b. With the insertion or fitting structure, the metal material 301b is not easily detached from the elastic resin material 302b and is stably installed.
[0073]
Further, as described above, the hinge base portion 40b of the hinge structure is provided on the elastic resin material 302b so as to protrude outward from a predetermined portion such as one side or a part of one side of the substantially octagon, and is integrated with the elastic resin material 302b, for example. It is formed by molding. The hinge structure by the hinge base portion 40b is the above-described hinge structure similarly to the straight portion cover member 30a, and includes the thin-walled connecting portion 410, the opening portion 420, the opening groove 430, the engaging portion 440, and the like. It is engaged with the engaged hole 204b near the corner of the panel member 20, and constitutes a hinge structure.
[0074]
Due to the hinge structure, the intersection cover member 30b is detachably engaged with one of the four corners of the panel member 20 at the intersection and is installed to be openable and closable. The opening at the corner gathering location is closed and closed.
[0075]
The intersecting portion cover member 30b is press-fitted by the tapered portions of the first protruding portion 304b and the second protruding portion 305b of the elastic resin material 302b, and is engaged and installed between the corner peripheral edges of the panel member 20. The four sides of the substantially octagonal first protrusion 304b where the second protrusion 305b is not formed are brought into contact with or engaged with the peripheral edges of the corners of the four panel members 20, respectively. The convex portion 303b of the metal material 301b provided in the inner wall indirectly reinforces the peripheral edge of the corner or the engagement of the first projecting portion 304b, and the outer side surfaces on both sides of the substantially square second projecting portion 305b. Alternatively, the side peripheral wall is brought into contact with or engaged with the side edge or side edge of the panel member 20 in the vicinity of the peripheral edge of the corner between the panel members 20 and 20. Further, the portions corresponding to the four sides where the second protrusions 305b are not formed on the upper surface of the elastic resin material 302b are positioned and installed on the upper surface of the stepped portion 202.
[0076]
In other words, the outer periphery of the first protrusion 304b that does not have the second protrusion 305b and the outer periphery on both sides of the second protrusion 305b, or the first protrusion 304b and the second protrusion 305b. The predetermined outer periphery of the protruding portion or the engaging portion is engaged or fitted into the engaged region formed by the corner peripheral edges of the panel member 20 and the side peripheral edges or the side edges of the panel member 20, and the panel member 20 is configured to engage or fit from the corner periphery to the side periphery in the vicinity of the corner periphery, and the corners of the panel members 20 gathered by the engagement installation of the intersection cover member 30b are firmly positioned. In addition, the engaging portion serves as a stopper, and the crossing cover member 30b can be positioned and fixed easily and reliably by the corners of the four panel members 20 to be gathered. Prevent high It is possible to obtain such a shockproof.
[0077]
That is, the panel members 20 are fixedly supported by the support legs 102 erected on the support leg unit 10 and are installed by being pressed from above by the intersection cover members 30b at the corners of the four panel members 20. The engaging portion (fitting portion) of the intersection cover member 30b engages or fits in an up-and-down direction in an engaged region or a to-be-fitted region constituted by the corner peripheral edges of each panel member 20 at the gathering location. Due to the synergistic effect of the configuration, it is possible to regulate the displacement or movement of the panel member 20 or the intersection cover member 30b in the horizontal direction or the like, and to exhibit a high level of earthquake resistance.
[0078]
Furthermore, since the engaging part where the 1st protrusion part 304b of the corner part periphery of the panel member 20 and the cross | intersection part cover member 30b contact is reinforced with the convex part 303b of the metal material 301b inserted by the recessed part 307b, Compared with the case where only the elastic resin material 302b is used, the engaging portion has higher strength and engaging force, and the positioning and fixing of the corners of each panel member 20 can be strengthened to ensure high earthquake resistance. . In addition, by pressing and engaging the elastic resin material 302b in the engaged region, the engagement can be stably and surely engaged without being too tight or too loose. . In addition, the elastic resin material 302b functions as a buffer material, and can prevent rattling noise or the like due to the metal material 301b.
[0079]
In the above-described embodiment, the intersecting portion cover member 30b is configured such that the separate metal material 301b and the elastic material, the resin material, or the elastic resin material 402 are provided so as not to be easily detached. The cover member 30b may be a member formed by integrally molding an elastic resin or the like by insert molding or the like. Alternatively, in the above-described embodiment, an example in which the convex portion 303b of the metal material 301b is entirely covered with the elastic resin material 302b or the like has been shown. However, for example, an elastic resin is attached to the tip of the convex portion 303b at the location in contact with the corner periphery of the panel member 20 The material 302b may not be covered, and may be provided so as to surround the elastic resin material 302b around the side periphery other than the tip.
[0080]
In addition, a steel material, an aluminum material, or the like can be used as appropriate for the metal material 301b of the intersection cover member 30b, and the elastic resin material 302b or the elastic material or resin material provided integrally with the metal material 301b is soft. Alternatively, hard rubber materials, polypropylene (PP), ABS, vinyl resins, synthetic resins, and other soft or hard resins can be used as appropriate. If a material with excellent flexibility or elasticity is used, the hinge mechanism is automatically used. The function of returning to the sound or the function of preventing the rattling noise generated during walking or the like can be obtained satisfactorily.
[0081]
Further, the crossing cover member 30b has a configuration in which, for example, the wiring passage 5 is not provided between the panel members 20 and the straight part cover member 30a is not installed. It can also be used in a configuration in which the intersection cover member 30b is provided at the intersection of the corners of the panel, and even in such a configuration, the panel members 20 are firmly coupled to each other and the positioning of the intersection cover member 30b is reliably fixed. In addition, effects such as prevention of rattling noise and ensuring predetermined earthquake resistance can be obtained.
[0082]
Further, as shown in FIG. 3, the intersection cover member 30b is formed in one panel member 20 with an engaged hole 204a, and the corners on the two adjacent sides to which the linear part cover member 30a is respectively attached. The engagement hole 204b may be provided at the corner and engaged with the engagement hole 204b at the corner. However, as shown in FIG. Engaged holes 204b are provided at the corners on the two adjacent sides where the member 30a is not attached, and are engaged with the engaged holes 204b at the corners, and intersect with the two linear portion cover members 30a. The cover member 30b can also be provided at the corners on the two sides of the panel member 20 at positions separated from each other.
[0083]
For example, when the two linear portion cover members 30a are opened, the three cover members 30a and 30b may interfere with each other or may interfere with each other when the intersection portion cover member 30b is opened. This configuration can avoid such a situation, and can further improve the opening / closing operation and workability of the cover members 30a and 30b. In addition, although the linear part cover member 30a attached to the other panel member 20 is installed also in the up-down and right-and-left position which is not illustrated with respect to the cross | intersection part cover member 30b, these linear part cover members 30a differ in an opening / closing direction etc. reversely. Therefore, it does not interfere with the intersection cover member 30b.
[0084]
[Description of construction method of double floor structure]
Next, the construction method of the double floor structure in the embodiment will be described.
[0085]
First, a marking line for positioning for arranging 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 member 20, the position of the wiring passage 5, and the like. Then, the support leg units 10 are installed at predetermined intervals at the positions where the support leg units 10 are marked. At this time, the positional relationship between the position of the panel member 20 and the wiring passage 5 is specified, and when the height adjusting mechanism 103 is provided as described above, the height adjusting operation of the support leg unit 10 is performed as necessary. Do.
[0086]
Thereafter, the panel member 20 is laid while being supported by the support legs 102 between the support leg units 10 or between the support legs 102. In the above embodiment, as shown in FIGS. 1 and 2, one panel member 20 is laid on the four support leg units 10, so that the panels other than the ends and outer edges of the entire double floor structure are provided. The corners of the member 20 are adjacent to and adjacent to the corners of the panel member 20 laid adjacent to each other. For example, the four corners that are the corners of the four panel members 20 are gathered together, and an opening at the intersection is formed. Constitute. In addition, a predetermined interval is provided between the side edges of the adjacent panel members 20 to form an opening in the straight portion. The opening at the intersection or the straight line becomes the upper surface opening of the wiring passage 5, and the panel member 20 is laid out in an orderly manner leaving the upper surface opening of the wiring passage 5. In addition, when it is necessary to install a main line such as a main trunk line and a wiring device, the installation and wiring are performed prior to laying the panel member 20.
[0087]
Thereafter, as shown in FIG. 1 to FIG. 4, the straight portion cover member 30 a and the intersecting portion cover member 30 b are arranged at the straight portions between the sides of the panel member 20 and the intersecting portions between the corners of the panel member 20. Install each. The cover members 30a and 30b are attached by engaging the engaging portions 440 of the hinge structure with the engaged holes 204a and 204b of the panel member 20, and the cover members 30a and 30b are installed by the hinge structure. By installing the intersection cover member 30b at the gathering location of the corners of the panel member 20, the first protrusion of the intersection cover member 30b on the corner peripheral green of the panel member 20 and the side near the corner periphery. 304b and the 2nd protrusion part 305b engage, and the panel member 20 and the cross | intersection part cover member 30b are positioned and fixed. The panel member 20 is stably positioned and installed regardless of the installation state of the linear portion cover member 30a.
[0088]
Thereafter, a finishing material is laid as a final finish on the panel member 20, the straight portion cover member 30a, and the intersecting portion cover member 30b, and the construction of the double floor structure is completed.
[0089]
Then, after the construction of the double floor structure, it becomes necessary to change the layout or transfer / expansion of wiring, etc. When newly laying wiring or installing wiring equipment, etc., either sequentially or arbitrarily as needed The linear portion cover member 30a and the intersection portion cover member 30b at the position are opened. The cover members 30a and 30b can be easily opened by the above-described hinge structure, and the intersection cover member 30b is rotated and arranged until the upper surface thereof contacts or approaches the upper surface near the corner of the panel member 20. If necessary, the back surface side is slightly pressed to maintain a stationary open state, and the upper surface of the linear portion cover member 30a is in contact with or close to the upper surface of the panel member 20 near the side edge or side. It is possible to maintain the open state of the wiring passage 5 by rotating it until it is done and maintaining the open state where the back surface side is slightly pressed as necessary to maintain a stationary state.
[0090]
By maintaining the open state of the cover members 30a and 30b as described above, for example, it is possible to maintain all the upper surfaces of the wiring passages 5 continuously in an open state, and wirings are dropped into the open wiring passage 5 from above. Can be laid.
[0091]
Further, when wirings and wiring fixtures cannot be installed from the opening of the wiring passage 5, the cover members 30a and 30b at predetermined locations are kept open, and the opening state of the wiring passage 5 is maintained. Therefore, by utilizing the opening of the wiring passage 5, an operator can put a hand in the opening and pull up the panel member 20 to expose the lower part of the panel member 20 and easily install wirings and the like. . For example, if at least two adjacent linear part cover members 30a are maintained in an open state with respect to one panel member 20, the operator puts a hand there from the one panel member 20 Can be pulled up easily. At this time, since the straight portion cover member 30a on the opposite two sides is not attached to the panel member 20 to be pulled up, the panel member regardless of whether or not the straight portion cover member 30a is open. 20 can be easily detached and removed.
[0092]
In addition, in the case of the said embodiment, with respect to one sheet of the panel member 20, two linear part cover members 30a are adjacent to the side, and the two linear part cover members 30a or the panel member 20 constituted by the adjacent side are provided. One intersection cover member 30b is detachably installed by engagement of the engaging portion 440 and the engaged holes 204a and 204b at the corner or the corner of the panel member 20 at a position opposite to the corner. The
[0093]
[Effect of the embodiment]
(1) The linear part cover member 30a and the intersection part cover member 30b have a thin connecting part 410, an engaging part 440, an opening part 420, etc., and engage the engaging part 440 into the engaged holes 204a and 204b. The hinge structure is a simple structure that can be opened and closed on the step portions 201 and 202 of the panel member 20. Therefore, the hinge structure, the cover members 30a and 30b, and the double floor structure in which these are installed are complicated. It is easy to process, manufacture and install.
(2) The cover members 30a and 30b 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 hinge engaging structure, the fitting / engaging structure, and the part constituting the locking structure. Can be manufactured.
(3) By forming the cover members 30a and 30b using a resin material, it is possible to reduce the size and weight, and the opening and closing operation can be performed more easily, and the open and closed states can be achieved. The state can be maintained more easily, and construction work can be easily and efficiently performed. In particular, the constituent parts of the hinge structure of the cover members 30a and 30b can be integrally formed of a resin material, and the cover members 30a and 30b can be rotated and bent by a bent portion or a thin connection portion 410 formed of a resin material. The opening and closing operation can be performed smoothly and extremely easily, and the maintenance of the open state and the closed state is further facilitated. Accordingly, by opening and closing the cover members 30a and 30b, for example, wiring can be easily laid and transferred even after the panel member 20 has been wired under the panel member 20 or before the wiring passage 5.
(4) Since the cover members 30a and 30b can be opened and closed by a hinge structure, for example, the intersection cover member 30b at the corner of the panel member 20 is opened, and two adjacent linear portion cover members 30a are opened. By maintaining, it is possible to easily put the hand into the opening of the wiring passage 5 and lift and remove the panel member 20 main body. Thereby, installation of the wiring apparatus under the panel member 20, the wiring change under the panel member 20, etc. are easily possible.
(5) Once the cover members 30a and 30b are coupled to the panel member 20 side in a hinge engagement structure, the cover members 30a and 30b are not easily detached or lost, and the cover members 30a and 30b are easy to handle. Moreover, the cover members 30a and 30b can be freely attached and detached as necessary.
(6) Since the intersection cover member 30b is formed by polymerizing the metal material 301b, the elastic resin material 302b, the resin material, or the elastic material, the metal material 301b can be reduced in size and weight by using a thin plate material or the like. In addition, the protrusions 304b and 305b and the reinforcing ribs 306b can be formed on the elastic resin material 302b and the like so that the weight can be reduced and sufficient strength can be obtained, and the cost can be reduced. .
(7) When the intersection cover member 30b is press-fitted and installed, for example, by forming the intersection cover member 30b with the elastic resin material 302b at least at the side outer periphery or the contact portion with the panel member 20, for example. Since the elastic resin material 302b and the like come into contact with the peripheral edge of the corner of the panel member 20, the intersection cover member 30b can be easily fitted and installed, and can be positioned and fixed easily and reliably. Can do. Furthermore, by forming an appropriate contact portion with the engaged region of the intersection cover member 30b, the panel member 20 or the like using the elastic resin material 302b or the like, the contact with the panel member 20 or the like is unstable. Generation of sound can be prevented.
(8) The opening / closing operation of the cover member such as the straight part cover member 30a and the crossing cover member 30b is performed by the thin-walled connecting part 410 and the hinge structure by the engagement of the engaging part 440 and the engaged holes 204a and 204b. It can be performed smoothly, easily and reliably, and does not stop, for example, at a halfway position during opening and closing. Furthermore, it can automatically return from the open state to the closed state, and the closed state and the open state can be stably maintained.
(9) In the present embodiment, for example, as shown in FIGS. 10, 11, and 13 to 18, the width W of the thin region X <b> 1 of the thin connecting portion 410 is widened at a substantially central portion of the hinge bases 40 a and 40 b, A boundary line with the thick connecting portion 450 is formed so that the width W is narrowed as it goes to both end portions, and the width W is changed gradually or stepwise. Further, the thickness of the thin region X1 is set to the hinge base portion 40a. , 40b is thinned at a substantially central portion and thickened toward both end portions, and a thin-walled region X1 or a thin-walled portion is increased at a substantially central portion to increase flexibility, and a thin-walled region at both end portions. By reducing the flexibility by reducing the thickness of X1 and the thick part, it is possible to obtain an appropriate hinge effect associated with the opening and closing of the covers 30a, 30b and the panel, and the thin regions X1 and the thickness of both ends. Due to the reduction of thick parts The hinge base 40a, it is possible to further improve the strength of 40b and the hinge structure, it is possible to obtain a shock absorbing effect.
[0094]
When the opening 420 is provided in the central portion, the hinge structure can be given more flexible flexibility, and the opening / closing operation can be smoothed. Further, the engagement portion 440 and the opening can be opened. As the opening region is expanded by the opening groove 430 provided so as to connect to the portion 420, the allowable deflection and twist of the hinge bases 40a and 40b and the hinge structure increase, and external impacts such as a collision during walking. Even when stress is applied, the effect of absorbing the impact is further improved.
[0095]
【The invention's effect】
The hinge structure of the floor structure according to the present invention has a simple structure and is very excellent in strength, durability and impact resistance, allows the cover member and panel member to be opened and closed, and stabilizes both the open state and the closed state. It is excellent in performance, and there is an effect that the construction work such as wiring laying can be made efficient. For example, the cover member is excellent in stability in the open state and the closed state, and operability and workability can be improved.
[0096]
Further, the cover member and the panel member can be easily and freely opened and closed as necessary. Further, the hinge structure, the cover member and the panel member provided with the hinge structure can be manufactured with a simple configuration and at low cost.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an overall configuration of a double floor structure provided with a hinge structure according to an embodiment.
FIG. 2 is a plan view showing an overall configuration of a double floor structure provided with the hinge structure of the embodiment.
FIG. 3 is an explanatory plan view of a panel member, a straight part cover member, and an intersecting part cover member.
FIG. 4 is an explanatory plan view of another example of a panel member, a straight portion cover member, and an intersection portion cover member.
FIG. 5A is a plan view showing details of a straight part cover member.
(B) The front view which shows the detail of a linear part cover member.
(C) The rear view which shows the detail of a linear part cover member.
(D) The back view which shows the detail of a linear part cover member.
(D) The side view which shows the detail of a linear part cover member.
FIG. 6A is a plan view showing an intersection cover member in an assembled state.
(B) The side view which shows the cross | intersection part cover member of an assembly state.
7A is a plan view showing a metal material in the intersection cover member of FIG. 6; FIG.
(B) The side view which shows the metal material in the cross | intersection part cover member of FIG.
8A is a plan view showing an elastic resin material in the intersection cover member of FIG. 6; FIG.
(B) The back view which shows the elastic resin material in the cross | intersection part cover member of FIG.
(C) The side view which shows the elastic resin material in the cross | intersection part cover member of FIG.
FIG. 9 is a perspective view showing a schematic front side of a hinge base portion in the hinge structure of the first embodiment.
10 is a perspective view showing a substantially back side of the hinge base portion of FIG. 9;
11 is a plan view of the hinge base of FIG. 9;
FIG. 12 is a partial cross-sectional side view illustrating the open / close state of the hinge structure of the first embodiment.
FIG. 13A is a plan view showing a hinge base portion in the hinge structure of the second embodiment;
(B) The side view which shows the hinge base part in the hinge structure of 2nd Embodiment.
FIG. 14A is a plan view showing a hinge base portion in the hinge structure of the third embodiment.
(B) The side view which shows the hinge base part in the hinge structure of 3rd Embodiment.
FIG. 15A is a plan view showing a hinge base portion in the hinge structure of the fourth embodiment;
(B) The side view which shows the hinge base part in the hinge structure of 4th Embodiment.
FIG. 16A is a plan view showing a hinge base portion in the hinge structure of the fifth embodiment;
(B) The side view which shows the hinge base part in the hinge structure of 5th Embodiment.
FIG. 17A is a plan view showing a hinge base portion in the hinge structure of the sixth embodiment;
(B) The side view which shows the hinge base part in the hinge structure of 6th Embodiment.
FIG. 18A is a perspective view showing a substantially rear side of a hinge base portion in the hinge structure of the seventh embodiment.
(B) The side view which shows the hinge base part in the hinge structure of 7th Embodiment.
[Explanation of symbols]
10 Supporting leg unit
20 Panel members
30a Straight part cover member
30b Intersection cover member
301b Metallic material
302b Elastic resin material
40a, 40b Hinge structure
410 Thin joint
411 center
412 Front end
413 Rear end
414 end
420 opening
430 Opening groove
440 engagement part
441 Hemisphere
442 Dividing groove
450 Thick wall connection
X1 Thin area
X2 thick area
X3 Ultra-thin area
W width of thin area X1
W 'Width of ultrathin wall region X3

Claims

An engaging means provided via a connecting means having a thin connecting portion on the cover member or panel member; and an engaged means provided at a predetermined location of the floor structure and engaged with the engaging means. In the hinge structure of the floor structure that can open and close the cover member or the panel member, the width W of the thin region X1 of the thin connecting portion of the connecting means is gradually narrowed from the substantially central portion or from the vicinity of the substantially central portion toward the substantially end portion. A hinge structure for a floor structure, wherein the floor structure is formed as follows.

An engaging means provided via a connecting means having a thin connecting portion on the cover member or panel member; and an engaged means provided at a predetermined location of the floor structure and engaged with the engaging means. In the hinge structure of the floor structure that allows the cover member or the panel member to be opened and closed, the thin region X1 of the thin connecting portion of the connecting means is formed with a substantially hemispherical or substantially hemispherical curved surface and is recessed. The hinge structure of the floor structure is a feature.

The hinge structure for a floor structure according to claim 1 or 2, wherein an opening is formed in at least a part of the thin-walled connecting portion of the connecting means.

The floor structure according to claim 1, 2 or 3, wherein an opening provided in a thin connecting portion of the connecting means is substantially connected to an opening groove extending to at least a position near the engaging means. Hinge structure.