JP2004121913A - Laboratory table having replaceable decorative board, method for replacing decorative board and decorative board for laboratory table - Google Patents
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【０００１】
【発明の属する技術分野】
この発明は、化粧板を交換する必要が生じた際に化粧板だけを交換することが可能な実験台及びこのような実験台における化粧板の交換方法並びに実験台用化粧板に関する。
【０００２】
なお、この明細書において、「実験台」の語は、作業台も含む意味で用いられる。
【０００３】
【従来の技術】
従来、実験台の上面には、傷の発生や汚れ付着等を防止すべく、メラミン樹脂等からなる化粧板が接着剤により貼着されている。ところが、実験台の上面は、様々な種類の薬品が付着する等過酷な条件に晒されるため、長期間使用をしていると前記化粧板の表面に傷や汚れが生じてくることは避け難い。このような化粧板表面の傷や汚れが顕著になってくると、化粧板を新たなものに交換する必要が生じるが、従来の実験台では化粧板が接着剤により基台（天板の芯材等）に接着固定されているために化粧板だけを交換することはできず、このために実験台全体を廃棄して新しいものに交換することを余儀なくされていた。近年、環境保護の要請から廃棄物の排出量を極力少なくすることが社会的に強く求められている中で、交換の必要な部位である化粧板だけではなく他の未だ十分に使用できる多くの部材を含めて実験台全体を廃棄して新しいものに交換していては、このような環境保護、資源の有効利用という社会的要請に応えることができない。
【０００４】
そこで、化粧板を交換する必要が生じた際には化粧板だけを交換できる構成の実験台が求められるところであるが、このような化粧板の交換が可能な構成のものとしては次のようなものが提案されている。
【０００５】
例えば、テーブル等の基台上面に接着剤層を介して繊維質よりなる紙板が接着され、該繊維質よりなる紙板の上面に接着剤層を介して化粧板が接着固定されてなる家具が提案されている（特許文献１参照）。これによれば、化粧板の交換が必要な際には、繊維質よりなる紙板の厚さ方向中間部において層状に剥がすことができるので、化粧板をテーブル等の基台から容易に剥離して分離できる。
【０００６】
或いは、天板の芯材の上面に接着剤を介して、熱硬化性樹脂含浸紙の裏面に耐水加工紙が積層一体化されてなる化粧板の裏面を接着せしめた構成の天板が提案されている（特許文献２参照）。この構成によれば、化粧板の交換が必要な際には、耐水加工紙の部分に刃物等を入れることにより最上層の熱硬化性樹脂含浸紙（化粧板）だけを容易に剥離して分離できる。
【０００７】
【特許文献１】
特開平７−３１５１３号公報
【０００８】
【特許文献２】
特開平１１−４６８７６号公報
【０００９】
【発明が解決しようとする課題】
しかしながら、上記従来の提案技術では、いずれにおいても、化粧板を接着剤により接着する工程を要することから、製造工程数が非常に多くなってしまい、生産性が低いという問題があった。
【００１０】
更に、前記いずれの提案技術も、剥離して回収した化粧板には接着剤が付着した状態であって、いわば異種素材が複合化された状態であるから、この回収した化粧板をリサイクル利用に供して有効利用するのは困難であった。
【００１１】
この発明は、かかる技術的背景に鑑みてなされたものであって、化粧板を交換する必要が生じた際には化粧板だけを容易に交換することができるとともに、製造工程数が少なくて生産性に優れ、また交換回収した化粧板に接着剤等が付着されておらず交換回収した化粧板のリサイクル利用も十分に可能となる、化粧板の交換が可能な実験台及び該実験台の化粧板の交換方法並びに実験台用化粧板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】
上記目的は、化粧板と、該化粧板を支持する支持部材とを備えてなり、前記支持部材の上面に、係合頭部を有した突起部材が突設され、前記化粧板の裏面に係合孔が穿設され、該係合孔は、前記係合頭部を受容できる受容孔と、該受容孔に連通したスライド用溝とからなり、該スライド用溝の開口幅は前記係合頭部の径より小さく設定され、前記支持部材の上面側の突起部材の係合頭部が、前記化粧板の裏面側のスライド用溝内に嵌まり込んで係合されることによって、前記化粧板が、上下方向への移動が阻止された態様で前記支持部材の上面側に固定されていることを特徴とする化粧板の交換が可能な実験台によって達成される。
【００１３】
本発明の実験台によれば、化粧板を支持部材に接着剤で接着固定するものではないから、製造工程数が少なくて済み生産性に優れている。また、支持部材の上面側の突起部材の係合頭部が、化粧板の裏面側のスライド用溝内に嵌まり込んで係合されているので、化粧板は、上下方向への移動が確実に阻止されると共に水平方向への移動も相当程度阻止された態様で、支持部材の上面側に固定される。しかして、化粧板を交換する必要が生じた際には、化粧板をスライド用溝の長さ方向に沿ってスライド移動させて突起部材の係合頭部を化粧板の受容孔内に配置せしめた後、化粧板を上方に移動させれば、化粧板を支持部材から離脱させることができ、このような簡単な操作で化粧板だけを取り外すことができる。新たな交換用化粧板を取り付けるに際しては、交換用化粧板を支持部材の上に配置し、該支持部材の上面の突起部材の係合頭部を交換用化粧板の裏面の受容孔内に配置せしめた後、化粧板をスライド用溝の長さ方向に沿ってスライド移動させて係合頭部をスライド用溝内に係合せしめることで交換用化粧板を固定できる。このような簡単な操作で交換用化粧板の取付固定を行うことができる。取り外して回収した化粧板には接着剤等が付着されていないので、該回収化粧板のリサイクル利用も十分に可能である。
【００１４】
この発明の実験台においては、支持部材は天板の芯材からなり、該天板の芯材と前記化粧板とを一体的に保持する縁部材がこれらの周縁部に設けられている構成を採用するのが好ましい。この場合には、化粧板は、上下方向への移動が確実に阻止されるのみならず水平方向への移動も確実に阻止された態様で、支持部材の上面側に固定される。
【００１５】
また、突起部材は、支持部材の上面に螺合されたネジ部材によって形成されているのが好ましい。ネジ部材を支持部材の上面に螺合するだけで、突起部材を支持部材の上面に突設できるので、生産性をさらに向上させることができるし、コストも低減できる。
【００１６】
また、スライド用溝の溝底面は、受容孔側から他端側に向けて深さが漸減する傾斜面に形成されているのが好ましい。突起部材の係合頭部をスライド用溝内で他端側に向けてスライド移動させる際に、他端側に近づくにつれて係合頭部の係合状態が緩い状態から固く締まった状態へと徐々に変化していって他端側で係合固定されるものとなり、このようにスライド移動操作の過程でスムーズな係合固定が実現される。同様に、逆方向へのスライド移動操作の過程ではスムーズな係合固定解除が実現される。
【００１７】
また、この発明に係る実験台の化粧板の交換方法は、上記いずれかの構成に係る実験台の化粧板を前記スライド用溝の長さ方向に沿ってスライド移動させることによって前記突起部材の係合頭部を前記化粧板の受容孔内に配置せしめた後、前記化粧板を上方に移動させて前記支持部材から離脱させる工程と、前記離脱させた化粧板と同一構成の交換用化粧板を前記支持部材の上に配置し、該支持部材の上面の突起部材の係合頭部を前記交換用化粧板の裏面の受容孔内に配置せしめた後、化粧板をスライド用溝の長さ方向に沿ってスライド移動させることによって前記係合頭部を前記スライド用溝内に係合せしめて前記交換用化粧板を前記支持部材の上面側に固定する工程とを含むことを特徴とする。この交換方法によれば、交換の必要が生じた化粧板を新たな交換用化粧板に速やかにかつ容易に交換することができる。また、取り外して回収した化粧板には接着剤等が付着されていないので、該回収化粧板のリサイクル利用も十分に可能である。
【００１８】
また、この発明に係る別の化粧板の交換が可能な実験台は、化粧板と、該化粧板を支持する支持部材と、ボルトと、ナットとを備えてなり、前記支持部材に貫通孔が形成される一方、前記化粧板の裏面に係合孔が穿設され、該係合孔は、前記ボルトの頭部を受容できる受容孔と、該受容孔に連通したスライド用溝とからなり、該スライド用溝の開口幅は前記ボルト頭部の径より小さく設定され、前記ボルトの軸部が前記支持部材の貫通孔に挿通配置され、前記ボルト頭部が前記化粧板の裏面のスライド用溝内に嵌まり込んで係合され、前記支持部材の下面から突出したボルト軸部に前記ナットが螺合締付されることによって、前記化粧板が前記支持部材の上面側に固定されていることを特徴とする。
【００１９】
本発明の実験台によれば、化粧板を支持部材に接着剤で接着固定するものではないから、製造工程数が少なくて済み生産性に優れている。また、支持部材の貫通孔に挿通配置されたボルトの頭部が化粧板の裏面のスライド用溝内に嵌まり込んで係合され、支持部材の下面から突出したボルト軸部にナットが螺合締付されているので、化粧板は、上下方向への移動が確実に阻止されると共に水平方向への移動も確実に阻止された態様で、支持部材の上面側に固定される。しかして、化粧板を交換する必要が生じた際には、ナットの螺合締付を解除してナットを取り外した後、支持部材の貫通孔からボルトを抜脱すれば、化粧板を支持部材から離脱させることができ、このような簡単な操作で化粧板だけを取り外すことができる。新たな交換用化粧板を取り付ける際には、裏面にボルトが一体的に取り付けられた交換用化粧板を支持部材の上に配置して、ボルトの軸部を支持部材の貫通孔に挿通した後、支持部材の下面から突出したボルト軸部にナットを螺合締付することで交換用化粧板を固定できる。このような簡単な操作で交換用化粧板の取付固定を行うことができる。取り外して回収した化粧板には接着剤等が付着されていないので、該回収化粧板のリサイクル利用も十分に可能である。
【００２０】
また、この発明に係る別の実験台の化粧板の交換方法は、上記構成に係る実験台のナットの螺合締付を解除してナットを取り外した後、前記支持部材の貫通孔から前記ボルトを抜脱することによって前記化粧板を前記支持部材から離脱させる工程と、前記ボルトの頭部を前記化粧板のスライド用溝内から受容孔内にスライド移動させて前記ボルトを化粧板から離脱させる工程と、前記離脱させた化粧板と同一構成の交換用化粧板の裏面の受容孔内にボルト頭部を配置した後、該ボルト頭部をスライド移動させてスライド用溝内に係合せしめることによってボルトを交換用化粧板に一体的に取り付ける工程と、ボルトが一体的に取り付けられた前記交換用化粧板を前記支持部材の上に配置して、ボルトの軸部を前記支持部材の貫通孔に挿通した後、前記支持部材の下面から突出したボルト軸部にナットを螺合締付することによって前記交換用化粧板を前記支持部材の上面側に固定する工程とを含むことを特徴とする。この交換方法によれば、交換の必要が生じた化粧板を新たな交換用化粧板に速やかにかつ容易に交換することができる。また、取り外して回収した化粧板には接着剤等が付着されていないので、該回収化粧板のリサイクル利用も十分に可能である。
【００２１】
また、この発明に係る実験台用化粧板は、裏面に係合孔が穿設された平板からなり、前記係合孔は、受容孔と、該受容孔に連通したスライド用溝とからなり、該スライド用溝の開口幅はその内奥幅より小さく設定されていることを特徴とする。
【００２２】
【発明の実施の形態】
第１発明に係る化粧板の交換が可能な実験台（１）の一実施形態を図１〜図６に示す。本実施形態の実験台（１）は、図５に示すように、複数のフレーム部材（２１）…が組付固定されて形成された三次元のフレーム構造体をベース構造とする基台（２４）の上面に天板（７）が載置固定されたものである。（２２）は、基台（２４）を構成する側板（２２）であり、（２３）は、基台（２４）を構成する仕切板（２３）である。
【００２３】
前記天板（７）は、化粧板（２）と、該化粧板を支持する支持部材（４）と、該支持部材の下面に積層一体化された底板（９）とから構成される（図４、６参照）。前記底板（９）は前記基台（２４）の上面に固定されている。
【００２４】
前記支持部材（４）は、図３に示すように、相互に離間して配置された一対の長尺の芯材（４１）（４１）間に短尺の芯材（４２）（４２）（４２）（４２）（４２）が連結固定されてなる。前記隣り合う芯材（４２）（４２）同士の間隔は略等間隔になるように設定されている。なお、図示は省略したが、隣り合う芯材（４２）（４２）間の空間（４箇所）にはハニカム構造のペーパー（紙）芯材が配置されている。
【００２５】
前記支持部材（４）の上面には、突起部材（５）（５）（５）（５）（５）（５）が突設されている。即ち、図３に示すように、左端位置の芯材（４２）、中央位置の芯材（４２）、右端位置の芯材（４２）のそれぞれの長さ方向の両端部に突起部材（５）（５）が突設されている。前記突起部材（５）は、前記支持部材（４）に接合された支持軸（１０）と、該支持軸（１０）の径より径大の係合頭部（１１）とからなる。
【００２６】
本実施形態では、前記突起部材（５）は、前記支持部材（４）の上面に螺合されたネジ部材によって形成されている。また、ネジ部材のねじ込み方向、即ち突起部材（５）の支持軸（１０）の軸線方向は前記支持部材（４）の厚さ方向に対して僅かに傾斜するように配置されている（図４参照）。
【００２７】
前記化粧板（２）は、前記支持部材（４）の外径寸法と同サイズの平板からなり、その裏面には係合孔（３）（３）（３）（３）（３）（３）が穿設されている（図１参照）。即ち、この化粧板（２）を前記支持部材（４）の上に積層配置した際における各突起部材（５）の上方対応位置に係合孔（３）（３）（３）（３）（３）（３）が設けられている。
【００２８】
前記係合孔（３）は、図１に示すように、前記突起部材（５）の係合頭部（１１）を出入り自在に受容できる受容孔（１２）と、この受容孔（１２）に連通したスライド用溝（１３）とからなる。前記スライド用溝（１３）の開口幅（Ｗ）は、前記係合頭部（１１）の最大径（Ｈ）より小さく設定されている（図２（ロ）、図３参照）。また、前記スライド用溝（１３）の内奥幅（Ｙ）は、前記係合頭部（１１）の最大径（Ｈ）と同等又は略同等になるように設定されている。即ち、Ｗ＜Ｙの関係が成立するように構成されている。また、前記スライド用溝（１３）の溝底面（１４）は、図２（ハ）に示すように、前記受容孔（１２）側から他端側（図面右側）に向けて深さが漸減する傾斜面に形成されている。
【００２９】
しかして、この発明の実験台（１）は、例えば次のようにして製作される。まず、基台（２４）を構築し、この基台（２４）の上面に底板（９）を載置固定し、さらにこの上に前記支持部材（４）を積層一体化する。この時、支持部材（４）の上面には突起部材の係合頭部（１１）（１１）（１１）（１１）（１１）（１１）が上方に向けて突出した状態である。
【００３０】
次に、前記化粧板（２）をこの支持部材（４）の上に配置して、支持部材（４）の上面の係合頭部（１１）を化粧板（２）の裏面の受容孔（１２）内に配置せしめる（図４（イ）参照）。この後、化粧板（２）をスライド用溝（１３）の長さ方向に沿ってスライド移動させることによって係合頭部（１１）をスライド用溝（１３）内に係合せしめる（図４（ロ）参照）。この時、スライド用溝（１３）の溝底面（１４）は、前述したような傾斜面に形成されているから、係合頭部（１１）をスライド用溝（１３）内で他端側（図面右側）に向けてスライド移動させる際に、他端側に近づくにつれて係合頭部（１１）の係合状態が緩い状態から固く締まった状態へと徐々に変化していって他端側で十分に係合固定されるものとなり、このようにスライド移動操作の過程でスムーズな係合固定を実現できる。こうして、支持部材（４）の上面の係合頭部（１１）が、化粧板（２）の裏面側のスライド用溝（１３）内に嵌まり込んで上下方向への抜脱が不可能な状態でこの溝（１３）に係合されるので、前記化粧板（２）を、上下方向への移動が阻止された態様で支持部材（４）の上面側に固定できる。なお、本実施形態では、図５に示すように、４枚の化粧板（２）（２）（２）（２）を突き合わせ状に組み合わせて実験台（１）の最上面に配置する構成を採用している。
【００３１】
次いで、図５及び図６に示すように、底板（９）、支持部材（天板の芯材）（４）、化粧板（２）で構成される天板（７）の周縁部にこれら（９）（４）（２）を一体的に保持する縁部材（２０）を取付固定する。即ち、この縁部材（２０）の内面における上下方向の中央部には嵌合突起（２０ａ）が突設されており、該嵌合突起（２０ａ）を支持部材（４）の外周側面に形成された溝に嵌合せしめることによって縁部材（２０）を天板（７）の周縁部に固定する。こうして図５に示す実験台（１）が製作される。
【００３２】
しかして、化粧板（２）を交換する必要が生じた際には、次のようにして化粧板（２）の交換を行う。即ち、まず縁部材（２０）を取り外す。次に、化粧板（２）をスライド用溝（１３）の長さ方向に沿ってスライド移動させることによって突起部材（５）の係合頭部（１１）を化粧板の受容孔（１２）内に配置せしめた後、化粧板（２）を上方に移動させて化粧板（２）を支持部材（４）から離脱させる。こうして取り外して回収した化粧板（２）には接着剤等が付着されていないので、この回収した化粧板（２）をリサイクル利用することも十分に可能である。
【００３３】
次に、前記離脱させた化粧板と同一構成の交換用化粧板（２）を支持部材（４）の上に配置し、該支持部材（４）の上面の係合頭部（１１）を交換用化粧板（２）の裏面の受容孔（１２）内に配置せしめた後、化粧板（２）をスライド用溝（１３）の長さ方向に沿ってスライド移動させることによって係合頭部（１１）をスライド用溝（１３）内に係合せしめて交換用化粧板（２）を支持部材（４）の上面側に固定する。更に、天板（７）の周縁部に縁部材（２０）を取付固定して交換操作を完了する（図６参照）。このような化粧板の交換方法によれば、化粧板（２）の交換を速やかにかつ容易に行うことができる。
【００３４】
第２発明に係る化粧板の交換が可能な実験台（１）の一実施形態を図１、２、５〜９に示す。本実施形態の実験台（１）は、図５に示すように、複数のフレーム部材（２１）…が組付固定されて形成された三次元のフレーム構造体をベース構造とする基台（２４）の上面に天板（７）が載置固定されたものである。（２２）は、基台（２４）を構成する側板（２２）であり、（２３）は、基台（２４）を構成する仕切板（２３）である。
【００３５】
前記天板（７）は、化粧板（２）と、該化粧板を支持する支持部材（４）と、該支持部材の下面に積層一体化された底板（９）とから構成される（図６参照）。前記底板（９）は前記基台（２４）の上面に固定されている。
【００３６】
前記支持部材（４）は、図８に示すように、相互に離間して配置された一対の長尺の芯材（４１）（４１）間に短尺の芯材（４２）（４２）（４２）（４２）（４２）が連結固定されてなる。前記隣り合う芯材（４２）（４２）同士の間隔は略等間隔になるように設定されている。なお、図示は省略したが、隣り合う芯材（４２）（４２）間の空間（４箇所）にはハニカム構造のペーパー（紙）芯材が配置されている。
【００３７】
前記支持部材（４）には、上下方向に貫通する貫通孔（３２）（３２）（３２）（３２）（３２）（３２）が形成されている。即ち、図８に示すように、左端位置の芯材（４２）、中央位置の芯材（４２）、右端位置の芯材（４２）のそれぞれの長さ方向の両端部に貫通孔（３２）（３２）が形成されている。
【００３８】
前記化粧板（２）は、前記支持部材（４）の外径寸法と同サイズの平板からなり、その裏面には係合孔（３）（３）（３）（３）（３）（３）が穿設されている（図１参照）。即ち、この化粧板（２）を前記支持部材（４）の上に積層配置した際における各貫通孔（３２）の上方対応位置に係合孔（３）（３）（３）（３）（３）（３）が設けられている。
【００３９】
前記係合孔（３）は、図１に示すように、ボルト（３０）の頭部（３０ａ）を出入り自在に受容できる受容孔（１２）と、この受容孔（１２）に連通したスライド用溝（１３）とからなる。前記スライド用溝（１３）の開口幅（Ｗ）は、前記ボルト頭部（３０ａ）の最大径より小さく設定されている（図２（ロ）参照）。また、前記スライド用溝（１３）の内奥幅（Ｙ）は、前記ボルト頭部（３０ａ）の最大径と同等又は略同等になるように設定されている。即ち、Ｗ＜Ｙの関係が成立するように構成されている。また前記スライド用溝（１３）の溝底面（１４）は、図２（ハ）に示すように、前記受容孔（１２）側から他端側（図面右側）に向けて深さが漸減する傾斜面に形成されている。
【００４０】
しかして、この発明の実験台（１）は、例えば次のようにして製作される。まず、基台（２４）を構築し、この基台（２４）の上面に底板（９）を載置固定し、さらにこの上に前記支持部材（４）を積層一体化する。
【００４１】
次に、図７（イ）に示すように前記化粧板（２）の裏面の受容孔（１２）内にボルト（３０）の頭部（３０ａ）を配置せしめた後、このボルト頭部（３０ａ）をスライド用溝（１３）の長さ方向に沿ってスライド移動させてスライド用溝（１３）内に係合せしめる（図７（ロ）参照）。
【００４２】
こうしてボルト（３０）が一体的に取り付けられた化粧板（２）を前記支持部材（４）の上に配置して、ボルトの軸部（３０ｂ）を前記支持部材（４）の貫通孔（３２）に挿通せしめる。しかる後、前記支持部材（４）の下面から下方に突出したボルト軸部（３０ｂ）にナット（３１）を螺合締付する。このようにして、ボルトの軸部（３０ｂ）が支持部材（４）の貫通孔（３２）に挿通配置され、ボルト頭部（３０ａ）が化粧板の裏面のスライド用溝（１３）内に嵌まり込んで係合され、支持部材（４）の下面から突出したボルト軸部（３０ｂ）にナット（３１）が螺合締付されて、化粧板（２）が支持部材（４）の上面側に固定される（図９参照）。なお、本実施形態では、図５に示すように、４枚の化粧板（２）（２）（２）（２）を突き合わせ状に組み合わせて実験台（１）の最上面に配置する構成を採用している。
【００４３】
次いで、図５及び図６に示すように、底板（９）、支持部材（天板の芯材）（４）、化粧板（２）で構成される天板（７）の周縁部にこれら（９）（４）（２）を一体的に保持する縁部材（２０）を取付固定する。即ち、この縁部材（２０）の内面における上下方向の中央部には嵌合突起（２０ａ）が突設されており、該嵌合突起（２０ａ）を支持部材（４）の外周側面に形成された溝に嵌合せしめることによって縁部材（２０）を天板（７）の周縁部に固定する。こうして図５に示す実験台（１）が製作される。
【００４４】
しかして、化粧板（２）を交換する必要が生じた際には、次のようにして化粧板（２）の交換を行う。即ち、まず縁部材（２０）を取り外す。次いで、ナット（３１）の螺合締付状態を解除してナット（３１）をボルト軸部（３０ｂ）から取り外した後、支持部材（４）の貫通孔（３２）からボルト（３０）を抜脱することによって化粧板（２）を支持部材（４）から離脱させる。次いで、ボルト頭部（３０ａ）を化粧板（２）のスライド用溝（１３）内から受容孔（１２）内にスライド移動させてボルト（３０）を化粧板（２）から離脱させる。こうして取り外して回収した化粧板（２）には接着剤等が付着されていないし、ボルト（３０）とも分離されているので、この回収した化粧板（２）をリサイクル利用することも十分に可能である。
【００４５】
次に、前記離脱させた化粧板と同一構成の交換用化粧板（２）の裏面の受容孔（１２）内にボルトの頭部（３０ａ）を配置した（図７（イ）参照）後、このボルト頭部（３０ａ）をスライド移動させてスライド用溝（１３）内に係合せしめることによってボルト（３０）を交換用化粧板（２）に一体的に取り付ける（図７（ロ）参照）。
【００４６】
このようにしてボルト（３０）が一体的に取り付けられた交換用化粧板（２）を支持部材（４）の上に配置して、ボルトの軸部（３０ｂ）を支持部材（４）の貫通孔（３２）に挿通配置せしめた後、支持部材（４）の下面から下方に突出したボルト軸部（３０ｂ）にナット（３１）を螺合締付することによって交換用化粧板（２）を支持部材（４）の上面側に固定する（図９参照）。更に、天板（７）の周縁部に縁部材（２０）を取付固定して交換操作を完了する（図９参照）。このような化粧板の交換方法によれば、化粧板（２）の交換を速やかにかつ容易に行うことができる。
【００４７】
なお、上記化粧板の交換方法は、いずれも、その好適な一例を示したものに過ぎず、この発明の実験台（１）は、上記例示の交換方法で化粧板を交換するものに特に限定されるものではない。
【００４８】
また、上記実施形態では、支持部材（４）が天板の芯材からなる構成を採用しているが、特にこのような構成に限定されるものではない。
【００４９】
この発明において、化粧板（２）の素材としては、特に限定されるものではないが、例えばメラミン樹脂、セラミック、熱硬化性樹脂等が挙げられる。また、天板の芯材の素材としては、特に限定されるものではないが、例えばＭＤＦ等が挙げられる。
【００５０】
また、第１発明において、前記支持部材（４）の上面に設けられる突起部材（５）の位置やその数は特に限定されない。同様に、前記化粧板（２）の裏面に設けられる係合孔（３）の位置やその数も特に限定されない。また、第２発明において、前記支持部材（４）に形成される貫通孔（３２）の位置やその数も特に限定されない。ただ、化粧板（２）の支持部材（４）に対する固定状態の安定性を確実に確保する観点から、前記突起部材（５）は前記支持部材（４）の上面の少なくとも四隅部に設けられ、かつ前記係合孔（３）は前記化粧板（２）の裏面の少なくとも四隅部に設けられるのが好ましく、また同様の観点から前記貫通孔（３２）は前記支持部材（４）の少なくとも四隅部に設けられるのが好ましい。
【００５１】
【発明の効果】
請求項１に係る発明によれば、化粧板は、上下方向への移動が確実に阻止されると共に水平方向への移動も相当程度阻止された態様で、支持部材の上面側に固定される。化粧板を支持部材に接着剤で接着固定するものではないから、製造工程数が少なくて済み生産性に優れている。また、化粧板を交換する必要が生じた際には、簡単な操作で、化粧板だけを取り外して新たな交換用化粧板の取付固定を行うことができる。このように化粧板だけを交換できて実験台全体を廃棄することを回避できるので環境保護にも十分に貢献できる。また、取り外して回収した化粧板には接着剤等が付着されていないので、該回収化粧板のリサイクル利用も十分に可能である。
【００５２】
請求項２に係る発明によれば、化粧板は、上下方向への移動が確実に阻止されるのみならず水平方向への移動も確実に阻止された態様で、支持部材の上面側に固定される。
【００５３】
請求項３に係る発明によれば、生産性をさらに向上させることができるし、コストも低減できる。
【００５４】
請求項４に係る発明によれば、化粧板のスライド移動操作の過程でスムーズな係合固定を実現できると共に、逆方向へのスライド移動操作の過程ではスムーズな係合固定解除を実現できる。
【００５５】
請求項５に係る発明（交換方法）によれば、交換の必要が生じた化粧板を新たな交換用化粧板に速やかにかつ容易に交換することができる。また、取り外して回収した化粧板には接着剤等が付着されていないので、該回収化粧板のリサイクル利用も十分に可能である。
【００５６】
請求項６に係る発明によれば、化粧板は、上下方向への移動が確実に阻止されると共に水平方向への移動も確実に阻止された態様で、支持部材の上面側に固定される。化粧板を支持部材に接着剤で接着固定するものではないから、製造工程数が少なくて済み生産性に優れている。また、化粧板を交換する必要が生じた際には、簡単な操作で、化粧板だけを取り外して新たな交換用化粧板の取付固定を行うことができる。このように化粧板だけを交換できて実験台全体を廃棄することを回避できるので環境保護にも十分に貢献できる。また、取り外して回収した化粧板には接着剤等が付着されていないので、該回収化粧板のリサイクル利用も十分に可能である。
【００５７】
請求項７に係る発明（交換方法）によれば、交換の必要が生じた化粧板を新たな交換用化粧板に速やかにかつ容易に交換することができる。また、取り外して回収した化粧板には接着剤等が付着されていないので、該回収化粧板のリサイクル利用も十分に可能である。
【００５８】
請求項８に係る発明（実験台用化粧板）によれば、実験台における化粧板の交換作業を速やかにかつ容易に行うことができる。
【図面の簡単な説明】
【図１】第１、第２発明の実験台の化粧板の裏面を示す平面図である。
【図２】（イ）は図１におけるＡ−Ａ線の断面図、（ロ）は図１におけるＢ−Ｂ線の断面図、（ハ）は図１におけるＣ−Ｃ線の断面図である。
【図３】第１発明の実験台の支持部材を示す斜視図である。
【図４】（イ）は突起部材の係合頭部を化粧板の受容孔内に配置せしめた状態を示す断面図、（ロ）は化粧板をスライド移動させて係合頭部をスライド用溝内に係合せしめた状態を示す断面図である。
【図５】第１、第２発明の実験台を示す斜視図である。
【図６】図５におけるＤ−Ｄ線の断面図である。
【図７】第２発明の実験台に関する図面であって、（イ）はボルト頭部を化粧板の受容孔内に配置する状態を示す斜視図、（ロ）はボルト頭部をスライド用溝内に係合せしめて一体化した状態を示す斜視図である。
【図８】第２発明の実験台の支持部材を示す斜視図である。
【図９】第２発明の実験台の係合固定部及びその近傍を示す断面図である（図５におけるＥ−Ｅ線の断面図である）。
【符号の説明】
１…実験台
２…化粧板
３…係合孔
４…支持部材
５…突起部材
１０…支持軸
１１…係合頭部
１２…受容孔
１３…スライド用溝
１４…溝底面
２０…縁部材
３０…ボルト
３０ａ…頭部
３０ｂ…軸部
３１…ナット
３２…貫通孔
Ｗ…スライド用溝の開口幅[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a laboratory bench capable of replacing only a decorative board when it becomes necessary to replace a decorative board, a method of replacing a decorative board in such a laboratory table, and a decorative board for a laboratory bench.
[0002]
In this specification, the term "laboratory table" is used to include a work table.
[0003]
[Prior art]
Conventionally, a decorative plate made of a melamine resin or the like has been adhered to the upper surface of an experimental table with an adhesive in order to prevent scratches, stains, and the like. However, since the upper surface of the laboratory table is exposed to severe conditions such as various types of chemicals adhered thereto, it is inevitable that scratches and dirt will be generated on the surface of the decorative board after long-term use. . If the surface of the decorative plate becomes significantly scratched or dirty, it will be necessary to replace the decorative plate with a new one. It was not possible to replace only the decorative board because it was bonded and fixed to the material, etc., which necessitated the disposal of the entire laboratory bench and replacement with a new one. In recent years, there has been a strong social demand for minimizing the amount of waste generated due to the demand for environmental protection, and in addition to decorative panels, which need to be replaced, there are many other types that can still be used. If the entire test bench including components is discarded and replaced with a new one, it cannot meet such social demands for environmental protection and effective use of resources.
[0004]
Therefore, when it is necessary to replace the decorative board, an experimental table having a configuration that can replace only the decorative board is being sought, but such a configuration that can replace the decorative board is as follows. Things have been suggested.
[0005]
For example, a furniture is proposed in which a paper board made of fibrous material is bonded to an upper surface of a base such as a table via an adhesive layer, and a decorative board is bonded and fixed to the upper surface of the paper board made of fibrous material via an adhesive layer. (See Patent Document 1). According to this, when it is necessary to replace the decorative board, the decorative board can be easily peeled off from the base such as a table because the decorative board can be peeled off in a layer at the middle part in the thickness direction of the paper board made of fibrous material. Can be separated.
[0006]
Alternatively, there has been proposed a top plate having a configuration in which a back surface of a decorative plate formed by laminating and integrating water-resistant processed paper on a back surface of a thermosetting resin-impregnated paper is bonded to an upper surface of a core material of the top plate via an adhesive. (See Patent Document 2). According to this configuration, when replacement of the decorative board is necessary, only the uppermost layer of the thermosetting resin-impregnated paper (decorative board) is easily peeled and separated by inserting a cutting tool or the like in the portion of the water-resistant paper. it can.
[0007]
[Patent Document 1]
JP-A-7-31513
[0008]
[Patent Document 2]
JP-A-11-46876
[0009]
[Problems to be solved by the invention]
However, in each of the above-mentioned conventional techniques, since a step of bonding the decorative board with an adhesive is required, the number of manufacturing steps is extremely increased, and there is a problem that productivity is low.
[0010]
Furthermore, in any of the above-mentioned proposed technologies, the decorative board which has been peeled off and recovered is in a state in which an adhesive is attached, that is, a state in which different materials are combined, so that the recovered decorative board can be recycled. It was difficult to use them effectively.
[0011]
The present invention has been made in view of such a technical background, and when it is necessary to replace a decorative board, only the decorative board can be easily replaced, and the number of manufacturing steps is small and the production is small. An experimental bench with a replaceable decorative board, which has excellent adhesiveness, does not have an adhesive or the like attached to the exchanged and recovered decorative board, and can sufficiently reuse the replaced and recovered decorative panel. It is an object of the present invention to provide a board replacement method and a decorative board for a laboratory bench.
[0012]
[Means for Solving the Problems]
The above object is provided with a decorative board and a supporting member for supporting the decorative board. A projecting member having an engaging head is protrudingly provided on an upper surface of the supporting member. A mating hole is formed, the engaging hole includes a receiving hole capable of receiving the engaging head, and a sliding groove communicating with the receiving hole, and an opening width of the sliding groove is equal to the engaging head. The decorative plate is set to be smaller than the diameter of the portion, and the engaging head of the projecting member on the upper surface side of the support member is fitted into and engaged with the sliding groove on the back surface side of the decorative plate, thereby forming the decorative plate. However, the present invention is attained by a test table in which a decorative plate can be exchanged, characterized in that the test table is fixed to the upper surface side of the support member in such a manner that the movement in the vertical direction is prevented.
[0013]
According to the laboratory bench of the present invention, the decorative board is not fixed to the supporting member with an adhesive, so that the number of manufacturing steps is small and the productivity is excellent. Further, since the engaging head of the projecting member on the upper surface side of the support member is fitted and engaged in the slide groove on the back surface side of the decorative plate, the decorative plate can be surely moved in the vertical direction. And is prevented from moving in the horizontal direction to a considerable extent, and is fixed to the upper surface side of the support member. When it is necessary to replace the decorative panel, the decorative panel is slid along the length of the slide groove so that the engaging head of the projecting member is disposed in the receiving hole of the decorative panel. After that, if the decorative board is moved upward, the decorative board can be detached from the support member, and only the decorative board can be removed by such a simple operation. When installing a new replacement veneer, the replacement veneer is placed on the support member, and the engaging head of the projection member on the upper surface of the support member is placed in the receiving hole on the back surface of the replacement veneer. After this, the replacement veneer can be fixed by sliding the veneer along the length direction of the slide groove to engage the engaging head in the slide groove. With such a simple operation, the replacement decorative board can be mounted and fixed. Since no adhesive or the like is adhered to the decorative panel that has been removed and recovered, the recovered decorative panel can be sufficiently recycled.
[0014]
In the experimental bench of the present invention, the supporting member is made of a core material of a top plate, and an edge member for integrally holding the core material of the top plate and the decorative plate is provided on a peripheral portion thereof. It is preferable to employ it. In this case, the decorative plate is fixed to the upper surface side of the support member in such a manner that not only the vertical movement but also the horizontal movement is surely prevented.
[0015]
Preferably, the projecting member is formed by a screw member screwed onto the upper surface of the support member. By simply screwing the screw member on the upper surface of the support member, the projecting member can be protruded from the upper surface of the support member, so that the productivity can be further improved and the cost can be reduced.
[0016]
Further, it is preferable that the groove bottom surface of the slide groove is formed as an inclined surface whose depth gradually decreases from the receiving hole side to the other end side. When the engaging head of the projecting member is slid toward the other end in the slide groove, the engaging state of the engaging head gradually changes from a loose state to a tightly tightened state as approaching the other end. , And is engaged and fixed at the other end side, and thus smooth engagement and fixing is realized in the course of the sliding movement operation. Similarly, in the process of the sliding movement operation in the opposite direction, smooth engagement and release is realized.
[0017]
Further, in the method of replacing a decorative board of a laboratory table according to the present invention, the decorative board of the laboratory table according to any one of the above configurations is slid along the length direction of the slide groove to engage the projection member. After disposing the joint head in the receiving hole of the decorative board, a step of moving the decorative board upward to separate from the support member, and a replacement decorative board having the same configuration as the detached decorative board. After the engaging head of the projecting member on the upper surface of the supporting member is disposed in the receiving hole on the back surface of the replacement decorative plate, the decorative plate is placed in the longitudinal direction of the sliding groove. And engaging the engaging head in the sliding groove to fix the replacement decorative plate on the upper surface side of the support member. According to this replacement method, the veneer that needs to be replaced can be quickly and easily replaced with a new replacement veneer. Further, since the adhesive and the like are not attached to the decorative board removed and recovered, the recovered decorative board can be sufficiently recycled.
[0018]
Further, another experimental board capable of replacing a decorative board according to the present invention includes a decorative board, a support member for supporting the decorative board, a bolt, and a nut, and the support member has a through hole. On the other hand, an engagement hole is drilled on the back surface of the decorative plate, and the engagement hole includes a receiving hole capable of receiving the head of the bolt and a slide groove communicating with the receiving hole, The opening width of the slide groove is set to be smaller than the diameter of the bolt head, the shaft of the bolt is inserted through the through hole of the support member, and the bolt head is formed in the slide groove on the back surface of the decorative plate. The decorative plate is fixed to the upper surface side of the support member by being screwed into the bolt shaft portion protruding from the lower surface of the support member so as to be fitted into and engaged with the inside. It is characterized by.
[0019]
According to the laboratory bench of the present invention, the decorative board is not fixed to the supporting member with an adhesive, so that the number of manufacturing steps is small and the productivity is excellent. Further, the head of the bolt inserted through the through hole of the support member is fitted and engaged in the slide groove on the back surface of the decorative plate, and the nut is screwed into the bolt shaft protruding from the lower surface of the support member. Since it is tightened, the decorative board is fixed to the upper surface side of the support member in such a manner that the vertical movement is reliably prevented and the horizontal movement is also reliably prevented. Therefore, when it becomes necessary to replace the decorative board, after removing the nut by unscrewing the nut and then removing the bolt from the through hole of the support member, the decorative board is supported. , And only the decorative board can be removed by such a simple operation. When installing a new replacement veneer, place the replacement veneer with the bolts integrally attached on the back surface on the support member, and after inserting the shaft of the bolt through the through hole of the support member The replacement decorative plate can be fixed by screwing a nut onto a bolt shaft protruding from the lower surface of the support member. With such a simple operation, the replacement decorative board can be mounted and fixed. Since no adhesive or the like is adhered to the decorative panel that has been removed and recovered, the recovered decorative panel can be sufficiently recycled.
[0020]
Further, in another method of replacing a decorative board of a laboratory bench according to the present invention, the nut of the laboratory bench according to the above-described configuration is released by removing the nut and then the bolt is removed from the through hole of the support member. Removing the decorative plate from the support member by removing the bolt, and moving the head of the bolt from the sliding groove of the decorative plate into the receiving hole to release the bolt from the decorative plate. After the step, the bolt head is disposed in the receiving hole on the back surface of the replacement decorative plate having the same configuration as the detached decorative plate, and then the bolt head is slid to be engaged in the slide groove. A step of integrally mounting the bolts on the replacement decorative plate by means of a bolt, and disposing the replacement decorative plate on which the bolts are integrally mounted on the support member, and inserting a shaft portion of the bolt into a through hole of the support member. Penetrated Characterized in that it comprises a step of fixing the replacement veneer by with screwed tighten the nut on the bolt shank protruding from a lower surface of the support member on the upper surface of the support member. According to this replacement method, the veneer that needs to be replaced can be quickly and easily replaced with a new replacement veneer. Further, since the adhesive and the like are not attached to the decorative board removed and recovered, the recovered decorative board can be sufficiently recycled.
[0021]
Further, the decorative board for a laboratory bench according to the present invention is formed of a flat plate having an engagement hole formed in the back surface, and the engagement hole includes a receiving hole and a slide groove communicating with the receiving hole. An opening width of the slide groove is set to be smaller than an inner width thereof.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 6 show an embodiment of an experimental bench (1) according to the first invention in which a decorative board can be replaced. As shown in FIG. 5, the experimental table (1) of the present embodiment includes a base (24) having a three-dimensional frame structure formed by assembling and fixing a plurality of frame members (21). ) Has a top plate (7) placed and fixed on the upper surface thereof. (22) is a side plate (22) constituting the base (24), and (23) is a partition plate (23) constituting the base (24).
[0023]
The top plate (7) includes a decorative plate (2), a support member (4) for supporting the decorative plate, and a bottom plate (9) laminated and integrated on the lower surface of the support member (FIG. 4, 6). The bottom plate (9) is fixed to an upper surface of the base (24).
[0024]
As shown in FIG. 3, the support member (4) has a short core material (42) (42) (42) between a pair of long core materials (41) (41) arranged apart from each other. ) (42) and (42) are connected and fixed. The intervals between the adjacent core members (42) are set to be substantially equal. Although not shown, a paper core having a honeycomb structure is disposed in the space (four places) between the adjacent cores (42) (42).
[0025]
Projecting members (5), (5), (5), (5), (5), and (5) are provided on the upper surface of the support member (4). That is, as shown in FIG. 3, projecting members (5) are provided at both ends in the length direction of the core material (42) at the left end position, the core material (42) at the center position, and the core material (42) at the right end position. (5) is protruded. The projection member (5) includes a support shaft (10) joined to the support member (4), and an engagement head (11) having a diameter larger than the diameter of the support shaft (10).
[0026]
In the present embodiment, the projecting member (5) is formed by a screw member screwed onto the upper surface of the support member (4). The screwing direction of the screw member, that is, the axial direction of the support shaft (10) of the projection member (5) is arranged so as to be slightly inclined with respect to the thickness direction of the support member (4) (FIG. 4). reference).
[0027]
The decorative plate (2) is made of a flat plate having the same size as the outer diameter of the support member (4), and has engagement holes (3) (3) (3) (3) (3) (3) ) Are drilled (see FIG. 1). That is, the engaging holes (3), (3), (3), (3), (3) ( 3) (3) is provided.
[0028]
As shown in FIG. 1, the engaging hole (3) is provided with a receiving hole (12) capable of freely receiving the engaging head (11) of the projecting member (5) in and out, and a receiving hole (12). And a communicating slide groove (13). The opening width (W) of the slide groove (13) is set smaller than the maximum diameter (H) of the engagement head (11) (see FIGS. 2 (b) and 3). The inner depth (Y) of the slide groove (13) is set to be equal to or substantially equal to the maximum diameter (H) of the engagement head (11). That is, the configuration is such that the relationship of W <Y is established. Further, as shown in FIG. 2C, the depth of the groove bottom surface (14) of the slide groove (13) gradually decreases from the receiving hole (12) side to the other end side (right side in the drawing). It is formed on an inclined surface.
[0029]
The experimental bench (1) of the present invention is manufactured, for example, as follows. First, a base (24) is constructed, a bottom plate (9) is placed and fixed on the upper surface of the base (24), and the support member (4) is further laminated and integrated thereon. At this time, the engaging heads (11), (11), (11), (11), (11), and (11) of the projection members protrude upward from the upper surface of the support member (4).
[0030]
Next, the decorative plate (2) is disposed on the support member (4), and the engaging head (11) on the upper surface of the support member (4) is inserted into the receiving hole (11) on the back surface of the decorative plate (2). 12) (see FIG. 4A). Then, the engaging head (11) is engaged in the slide groove (13) by sliding the decorative plate (2) along the length direction of the slide groove (13) (FIG. 4 ( B)). At this time, since the groove bottom surface (14) of the slide groove (13) is formed on the inclined surface as described above, the engaging head (11) is moved to the other end side (in the slide groove (13)). When sliding toward the right side of the drawing), the engagement state of the engagement head (11) gradually changes from a loose state to a tightly closed state as it approaches the other end side. It is sufficiently engaged and fixed, and thus smooth engagement and fixation can be realized in the course of the sliding movement operation. Thus, the engagement head (11) on the upper surface of the support member (4) is fitted into the slide groove (13) on the back surface side of the decorative plate (2) so that it cannot be removed in the vertical direction. Since the decorative plate (2) is engaged with the groove (13), the decorative plate (2) can be fixed to the upper surface side of the support member (4) in such a manner that the decorative plate (2) is prevented from moving in the vertical direction. In this embodiment, as shown in FIG. 5, a configuration in which four decorative plates (2), (2), (2), and (2) are combined in a butt shape and arranged on the uppermost surface of the experimental table (1). Has adopted.
[0031]
Next, as shown in FIG. 5 and FIG. 6, the bottom plate (9), the support member (core material of the top plate) (4), and the top plate (7) composed of the decorative plate (2) 9) Attach and fix an edge member (20) that integrally holds (4) and (2). That is, a fitting projection (20a) is provided at the center of the inner surface of the edge member (20) in the vertical direction, and the fitting projection (20a) is formed on the outer peripheral side surface of the support member (4). The edge member (20) is fixed to the periphery of the top plate (7) by being fitted into the groove. Thus, the experimental bench (1) shown in FIG. 5 is manufactured.
[0032]
Thus, when it becomes necessary to replace the decorative board (2), the decorative board (2) is replaced as follows. That is, the edge member (20) is first removed. Next, by sliding the decorative plate (2) along the length direction of the slide groove (13), the engaging head (11) of the projection member (5) is inserted into the receiving hole (12) of the decorative plate. After that, the decorative board (2) is moved upward to separate the decorative board (2) from the support member (4). Since the decorative board (2) thus removed and collected does not have an adhesive or the like attached thereto, the collected decorative board (2) can be sufficiently recycled.
[0033]
Next, a replacement decorative plate (2) having the same configuration as the detached decorative plate is disposed on the support member (4), and the engaging head (11) on the upper surface of the support member (4) is replaced. After the decorative plate (2) is placed in the receiving hole (12) on the back surface, the decorative plate (2) is slid along the length direction of the slide groove (13) to thereby engage the engaging head ( 11) is engaged with the slide groove (13) to fix the replacement decorative plate (2) on the upper surface side of the support member (4). Further, the replacement operation is completed by attaching and fixing the edge member (20) to the peripheral portion of the top plate (7) (see FIG. 6). According to such a replacement method of the decorative board, the replacement of the decorative board (2) can be performed quickly and easily.
[0034]
One embodiment of the experimental bench (1) according to the second invention in which the decorative board can be replaced is shown in FIGS. As shown in FIG. 5, the experimental table (1) of the present embodiment includes a base (24) having a three-dimensional frame structure formed by assembling and fixing a plurality of frame members (21). ) Has a top plate (7) placed and fixed on the upper surface thereof. (22) is a side plate (22) constituting the base (24), and (23) is a partition plate (23) constituting the base (24).
[0035]
The top plate (7) includes a decorative plate (2), a support member (4) for supporting the decorative plate, and a bottom plate (9) laminated and integrated on the lower surface of the support member (FIG. 6). The bottom plate (9) is fixed to an upper surface of the base (24).
[0036]
As shown in FIG. 8, the support member (4) has a short core material (42) (42) (42) between a pair of long core materials (41) (41) arranged apart from each other. ) (42) and (42) are connected and fixed. The intervals between the adjacent core members (42) are set to be substantially equal. Although not shown, a paper core having a honeycomb structure is disposed in the space (four places) between the adjacent cores (42) (42).
[0037]
The support member (4) is formed with through holes (32) (32) (32) (32) (32) (32) penetrating vertically. That is, as shown in FIG. 8, through holes (32) are formed at both ends in the length direction of the core material (42) at the left end position, the core material (42) at the center position, and the core material (42) at the right end position. (32) is formed.
[0038]
The decorative plate (2) is made of a flat plate having the same size as the outer diameter of the support member (4), and has engagement holes (3) (3) (3) (3) (3) (3) ) Are drilled (see FIG. 1). That is, the engaging holes (3), (3), (3), (3), (3) ( 3) (3) is provided.
[0039]
As shown in FIG. 1, the engaging hole (3) has a receiving hole (12) for freely receiving the head (30a) of the bolt (30) in and out, and a slide hole communicating with the receiving hole (12). And a groove (13). The opening width (W) of the slide groove (13) is set smaller than the maximum diameter of the bolt head (30a) (see FIG. 2B). The inner depth (Y) of the slide groove (13) is set to be equal to or substantially equal to the maximum diameter of the bolt head (30a). That is, the configuration is such that the relationship of W <Y is established. Further, as shown in FIG. 2 (c), the groove bottom surface (14) of the slide groove (13) has a slope whose depth gradually decreases from the receiving hole (12) side to the other end side (right side in the drawing). Formed on the surface.
[0040]
The experimental bench (1) of the present invention is manufactured, for example, as follows. First, a base (24) is constructed, a bottom plate (9) is placed and fixed on the upper surface of the base (24), and the support member (4) is further laminated and integrated thereon.
[0041]
Next, as shown in FIG. 7 (a), after the head (30a) of the bolt (30) is arranged in the receiving hole (12) on the back surface of the decorative board (2), the bolt head (30a) ) Is slid along the length of the slide groove (13) to engage the slide groove (13) (see FIG. 7B).
[0042]
Thus, the decorative plate (2) with the bolt (30) integrally attached thereto is disposed on the support member (4), and the shaft portion (30b) of the bolt is inserted into the through hole (32) of the support member (4). ). Thereafter, a nut (31) is screwed and fastened to a bolt shaft (30b) projecting downward from the lower surface of the support member (4). In this way, the bolt shaft (30b) is inserted through the through hole (32) of the support member (4), and the bolt head (30a) fits in the slide groove (13) on the back surface of the decorative plate. The nut (31) is screwed and fastened to the bolt shaft (30b) projecting from the lower surface of the support member (4), and the decorative plate (2) is placed on the upper surface side of the support member (4). (See FIG. 9). In this embodiment, as shown in FIG. 5, a configuration in which four decorative plates (2), (2), (2), and (2) are combined in a butt shape and arranged on the uppermost surface of the experimental table (1). Has adopted.
[0043]
Next, as shown in FIG. 5 and FIG. 6, the bottom plate (9), the support member (core material of the top plate) (4), and the top plate (7) composed of the decorative plate (2) 9) Attach and fix an edge member (20) that integrally holds (4) and (2). That is, a fitting projection (20a) is provided at the center of the inner surface of the edge member (20) in the vertical direction, and the fitting projection (20a) is formed on the outer peripheral side surface of the support member (4). The edge member (20) is fixed to the periphery of the top plate (7) by being fitted into the groove. Thus, the experimental bench (1) shown in FIG. 5 is manufactured.
[0044]
Thus, when it becomes necessary to replace the decorative board (2), the decorative board (2) is replaced as follows. That is, the edge member (20) is first removed. Next, the nut (31) is released from the screwed state and the nut (31) is removed from the bolt shaft (30b), and then the bolt (30) is removed from the through hole (32) of the support member (4). By detaching, the decorative board (2) is detached from the support member (4). Next, the bolt head (30a) is slid from the sliding groove (13) of the decorative plate (2) into the receiving hole (12) to release the bolt (30) from the decorative plate (2). Since the decorative board (2) thus removed and collected has no adhesive or the like and is separated from the bolts (30), the recovered decorative board (2) can be sufficiently recycled. is there.
[0045]
Next, after the head portion (30a) of the bolt is disposed in the receiving hole (12) on the back surface of the replacement decorative plate (2) having the same configuration as the detached decorative plate (see FIG. 7A), The bolt (30) is integrally attached to the replacement decorative board (2) by sliding the bolt head (30a) and engaging it in the slide groove (13) (see FIG. 7 (b)). .
[0046]
The replacement veneer (2) with the bolts (30) integrally attached in this manner is disposed on the support member (4), and the shaft portion (30b) of the bolt is inserted through the support member (4). After being inserted and arranged in the hole (32), the nut (31) is screwed and fastened to the bolt shaft portion (30b) projecting downward from the lower surface of the support member (4), whereby the replacement decorative plate (2) is attached. It is fixed to the upper surface side of the support member (4) (see FIG. 9). Further, the replacement operation is completed by attaching and fixing the edge member (20) to the peripheral portion of the top plate (7) (see FIG. 9). According to such a replacement method of the decorative board, the replacement of the decorative board (2) can be performed quickly and easily.
[0047]
It should be noted that each of the above-described methods for replacing decorative panels is merely a preferred example, and the experimental bench (1) of the present invention is particularly limited to the method for replacing decorative panels by the above-described exemplary replacement method. It is not done.
[0048]
Further, in the above embodiment, the configuration in which the support member (4) is made of the core material of the top plate is adopted, but the configuration is not particularly limited to this.
[0049]
In the present invention, the material of the decorative board (2) is not particularly limited, and examples thereof include a melamine resin, a ceramic, and a thermosetting resin. The material of the core material of the top plate is not particularly limited, and examples thereof include MDF.
[0050]
In the first invention, the position and the number of the projection members (5) provided on the upper surface of the support member (4) are not particularly limited. Similarly, the position and the number of the engagement holes (3) provided on the back surface of the decorative plate (2) are not particularly limited. In the second invention, the position and the number of the through holes (32) formed in the support member (4) are not particularly limited. However, from the viewpoint of ensuring the stability of the fixed state of the decorative plate (2) with respect to the support member (4), the protrusion members (5) are provided at at least four corners of the upper surface of the support member (4), The engaging holes (3) are preferably provided at least at four corners on the back surface of the decorative plate (2), and from a similar viewpoint, the through holes (32) are formed at least at the four corners of the support member (4). Is preferably provided.
[0051]
【The invention's effect】
According to the first aspect of the invention, the decorative plate is fixed to the upper surface of the support member in such a manner that the movement in the vertical direction is reliably prevented and the movement in the horizontal direction is substantially prevented. Since the decorative plate is not fixed to the supporting member with an adhesive, the number of manufacturing steps is small and the productivity is excellent. Further, when it becomes necessary to replace the decorative panel, it is possible to remove only the decorative panel and mount and fix a new replacement decorative panel by a simple operation. In this way, it is possible to avoid discarding the entire experimental bench by replacing only the decorative board, and thus sufficiently contribute to environmental protection. Further, since the adhesive and the like are not attached to the decorative board removed and recovered, the recovered decorative board can be sufficiently recycled.
[0052]
According to the invention according to
[0053]
According to the third aspect of the invention, the productivity can be further improved and the cost can be reduced.
[0054]
According to the invention of
[0055]
According to the invention (replacement method) according to the fifth aspect, the veneer that needs to be replaced can be quickly and easily replaced with a new replacement veneer. Further, since the adhesive and the like are not attached to the decorative board removed and recovered, the recovered decorative board can be sufficiently recycled.
[0056]
According to the invention according to claim 6, the decorative board is fixed to the upper surface side of the support member in such a manner that the movement in the vertical direction and the movement in the horizontal direction are surely prevented. Since the decorative plate is not fixed to the supporting member with an adhesive, the number of manufacturing steps is small and the productivity is excellent. Further, when it becomes necessary to replace the decorative panel, it is possible to remove only the decorative panel and mount and fix a new replacement decorative panel by a simple operation. In this way, it is possible to avoid discarding the entire experimental bench by replacing only the decorative board, and thus sufficiently contribute to environmental protection. Further, since the adhesive and the like are not attached to the decorative board removed and recovered, the recovered decorative board can be sufficiently recycled.
[0057]
According to the invention (replacement method) according to
[0058]
According to the invention according to claim 8 (decorative board for a laboratory bench), the work of replacing the decorative board at the laboratory bench can be performed quickly and easily.
[Brief description of the drawings]
FIG. 1 is a plan view showing the back surface of a decorative board of a laboratory bench according to the first and second inventions.
2A is a sectional view taken along line AA in FIG. 1, FIG. 2B is a sectional view taken along line BB in FIG. 1, and FIG. 2C is a sectional view taken along line CC in FIG. .
FIG. 3 is a perspective view showing a support member of the laboratory bench of the first invention.
FIG. 4A is a cross-sectional view showing a state in which the engaging head of the projecting member is disposed in the receiving hole of the decorative plate, and FIG. 4B is a diagram in which the decorative plate is slid to move the engaging head. It is sectional drawing which shows the state which was engaged in the groove.
FIG. 5 is a perspective view showing a test table of the first and second inventions.
FIG. 6 is a sectional view taken along line DD in FIG. 5;
FIGS. 7A and 7B are diagrams relating to the test table of the second invention, wherein FIG. 7A is a perspective view showing a state in which a bolt head is disposed in a receiving hole of a decorative plate, and FIG. It is a perspective view showing the state where it was engaged inside and integrated.
FIG. 8 is a perspective view showing a support member of the laboratory bench of the second invention.
FIG. 9 is a cross-sectional view showing the engaging and fixing portion of the test bench of the second invention and the vicinity thereof (a cross-sectional view taken along line EE in FIG. 5).
[Explanation of symbols]
1. Experimental bench
2. Decorative board
3. Engagement hole
4: Support member
5 Projection member
10 ... Support shaft
11 ... engaging head
12 ... receiving hole
13 ... Slide groove
14 ... groove bottom
20 ... edge member
30 ... bolt
30a ... head
30b: Shaft
31 ... nut
32 ... Through-hole
W: Opening width of slide groove
Claims (8)
前記支持部材の上面に、係合頭部を有した突起部材が突設され、
前記化粧板の裏面に係合孔が穿設され、該係合孔は、前記係合頭部を受容できる受容孔と、該受容孔に連通したスライド用溝とからなり、該スライド用溝の開口幅は前記係合頭部の径より小さく設定され、
前記支持部材の上面側の突起部材の係合頭部が、前記化粧板の裏面側のスライド用溝内に嵌まり込んで係合されることによって、前記化粧板が、上下方向への移動が阻止された態様で前記支持部材の上面側に固定されていることを特徴とする化粧板の交換が可能な実験台。A decorative plate, comprising a support member for supporting the decorative plate,
On the upper surface of the support member, a projection member having an engagement head is provided so as to protrude,
An engaging hole is formed in the back surface of the decorative plate, and the engaging hole includes a receiving hole capable of receiving the engaging head and a slide groove communicating with the receiving hole. The opening width is set smaller than the diameter of the engagement head,
The engaging head of the projecting member on the upper surface side of the support member is fitted and engaged in the slide groove on the back surface side of the decorative plate, so that the decorative plate can be moved in the vertical direction. A test table capable of replacing a decorative plate, wherein the test table is fixed to an upper surface side of the support member in a blocked state.
前記離脱させた化粧板と同一構成の交換用化粧板を前記支持部材の上に配置し、該支持部材の上面の突起部材の係合頭部を前記交換用化粧板の裏面の受容孔内に配置せしめた後、化粧板をスライド用溝の長さ方向に沿ってスライド移動させることによって前記係合頭部を前記スライド用溝内に係合せしめて前記交換用化粧板を前記支持部材の上面側に固定する工程とを含むことを特徴とする実験台の化粧板の交換方法。5. The decorative board of the laboratory bench according to claim 1, which is slid along the length direction of the slide groove so that the engaging head of the projecting member is received in the decorative board. 6. After being arranged in the step of moving the decorative board upward and detaching from the support member,
A replacement decorative panel having the same configuration as the detached decorative panel is disposed on the support member, and the engaging head of the projecting member on the upper surface of the support member is inserted into a receiving hole on the back surface of the replacement decorative panel. After the arrangement, the decorative board is slid along the length direction of the slide groove so that the engaging head is engaged in the slide groove, and the replacement decorative board is placed on the upper surface side of the support member. Fixing the decorative board to a laboratory bench.
前記支持部材に貫通孔が形成される一方、
前記化粧板の裏面に係合孔が穿設され、該係合孔は、前記ボルトの頭部を受容できる受容孔と、該受容孔に連通したスライド用溝とからなり、該スライド用溝の開口幅は前記ボルト頭部の径より小さく設定され、
前記ボルトの軸部が前記支持部材の貫通孔に挿通配置され、前記ボルト頭部が前記化粧板の裏面のスライド用溝内に嵌まり込んで係合され、前記支持部材の下面から突出したボルト軸部に前記ナットが螺合締付されることによって、前記化粧板が前記支持部材の上面側に固定されていることを特徴とする化粧板の交換が可能な実験台。A decorative plate, a support member for supporting the decorative plate, a bolt, and a nut,
While a through hole is formed in the support member,
An engagement hole is formed in the back surface of the decorative plate, and the engagement hole includes a receiving hole capable of receiving the head of the bolt and a slide groove communicating with the receiving hole. The opening width is set smaller than the diameter of the bolt head,
A shaft portion of the bolt is inserted through a through hole of the support member, and the bolt head is fitted and engaged in a slide groove on a back surface of the decorative plate, and a bolt protruding from a lower surface of the support member. An experimental bench capable of changing a decorative plate, wherein the decorative plate is fixed to an upper surface side of the support member by screwing and tightening the nut to a shaft portion.
前記ボルトの頭部を前記化粧板のスライド用溝内から受容孔内にスライド移動させて前記ボルトを化粧板から離脱させる工程と、
前記離脱させた化粧板と同一構成の交換用化粧板の裏面の受容孔内にボルト頭部を配置した後、該ボルト頭部をスライド移動させてスライド用溝内に係合せしめることによってボルトを交換用化粧板に一体的に取り付ける工程と、
ボルトが一体的に取り付けられた前記交換用化粧板を前記支持部材の上に配置して、ボルトの軸部を前記支持部材の貫通孔に挿通した後、前記支持部材の下面から突出したボルト軸部にナットを螺合締付することによって前記交換用化粧板を前記支持部材の上面側に固定する工程とを含むことを特徴とする実験台の化粧板の交換方法。The nut of the laboratory bench according to claim 6, wherein the nut is removed by screwing, and the bolt is withdrawn from the through hole of the support member, thereby detaching the decorative plate from the support member. Process and
A step of sliding the head of the bolt from within the sliding groove of the decorative board into the receiving hole to detach the bolt from the decorative board;
After the bolt head is disposed in the receiving hole on the back surface of the replacement decorative plate having the same configuration as the detached decorative plate, the bolt is moved by sliding the bolt head to engage in the slide groove. A process of integrally attaching to the replacement decorative board,
After disposing the replacement decorative plate integrally attached with bolts on the support member, inserting a bolt shaft into a through hole of the support member, and then projecting a bolt shaft from the lower surface of the support member Fixing the replacement veneer to the upper surface side of the support member by screwing a nut to the portion.
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| JP2002286461A JP4278951B2 (en) | 2002-09-30 | 2002-09-30 | An experimental table capable of changing a decorative plate, a method of replacing the decorative plate of the experimental table, and a decorative plate for the experimental table |
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| JP2002286461A JP4278951B2 (en) | 2002-09-30 | 2002-09-30 | An experimental table capable of changing a decorative plate, a method of replacing the decorative plate of the experimental table, and a decorative plate for the experimental table |
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