JP4278951B2 - 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 - Google Patents
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 Download PDFInfo
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Description
【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]
BACKGROUND OF THE INVENTION
The present invention relates to an experimental table capable of exchanging only a decorative plate when it is necessary to replace the decorative plate, a method for replacing the decorative plate in such an experimental table, and a decorative plate for an experimental table.
[0002]
In this specification, the term “experimental table” is used to include a work table.
[0003]
[Prior art]
Conventionally, a decorative board made of a melamine resin or the like has been attached to the upper surface of an experimental bench with an adhesive in order to prevent the occurrence of scratches or adhesion of dirt. However, since the upper surface of the experimental table is exposed to harsh conditions such as various kinds of chemicals adhering to it, it is difficult to avoid scratches and dirt on the surface of the decorative plate when used for a long time. . When the surface of the decorative plate becomes noticeable, the decorative plate needs to be replaced with a new one. However, in a conventional laboratory table, the decorative plate is attached to the base (the top plate core by an adhesive). It is not possible to replace only the decorative board because it is bonded and fixed to the material, etc.). For this reason, the entire experimental table must be discarded and replaced with a new one. In recent years, there has been a strong social demand to reduce the amount of waste as much as possible due to the demand for environmental protection. In addition to the decorative board, which is a part that needs to be replaced, there are many that can still be used sufficiently. If the entire experimental table including the components is discarded and replaced with a new one, it is impossible to meet such social demands for environmental protection and effective use of resources.
[0004]
Therefore, there is a need for an experimental table having a configuration in which only the decorative plate can be replaced when the decorative plate needs to be replaced. Things have been proposed.
[0005]
For example, a furniture is proposed in which a paper board made of fiber is bonded to the 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 fiber through an adhesive layer. (See Patent Document 1). According to this, when it is necessary to replace the decorative board, it can be peeled off in layers at the intermediate portion in the thickness direction of the paper board made of fiber, so the decorative board can be easily peeled off from a base such as a table. Can be separated.
[0006]
Alternatively, a top plate having a configuration in which a back surface of a decorative board in which water-resistant processed paper is laminated and integrated on the back surface of a thermosetting resin-impregnated paper via an adhesive on the top surface of the core material of the top plate is proposed. (See Patent Document 2). According to this configuration, when the decorative board needs to be replaced, only the uppermost thermosetting resin-impregnated paper (decorative board) can be easily peeled and separated by inserting a blade or the like into the waterproof paper. it can.
[0007]
[Patent Document 1]
Japanese Patent Laid-Open No. 7-31513
[0008]
[Patent Document 2]
JP 11-46876 A
[0009]
[Problems to be solved by the invention]
However, in any of the above conventional proposed techniques, there is a problem in that the number of manufacturing steps is very large and productivity is low because a process of bonding the decorative board with an adhesive is required.
[0010]
Furthermore, in any of the above-mentioned proposed technologies, since the adhesive is attached to the decorative plate that has been peeled off and collected, so to speak, this is a state in which different materials are combined. It was difficult to use it effectively.
[0011]
The present invention has been made in view of such technical background, and when it is necessary to replace the decorative plate, only the decorative plate can be easily replaced, and the number of manufacturing steps is small. A decorative bench with a replaceable decorative board, and a makeup on the experimental board, which is excellent in performance, and can be recycled and reused after the exchanged and collected decorative board is free of adhesive or the like. It is an object of the present invention to provide a plate replacement method and a decorative board for a laboratory table.
[0012]
[Means for Solving the Problems]
The object is to provide a decorative board and a supporting member for supporting the decorative board, and a protruding member having an engaging head projects from the upper surface of the supporting member, and is engaged with the back surface of the decorative board. An engagement hole is formed, and the engagement hole includes a reception hole that can receive the engagement head, and a slide groove that communicates with the reception hole. The opening width of the slide groove is the engagement head. The decorative plate is set to be smaller than the diameter of the portion, and the engaging head of the protruding member on the upper surface side of the support member is fitted into the sliding groove on the back surface side of the decorative plate, thereby being engaged. However, it is achieved by an experimental bench capable of exchanging a decorative board, characterized in that it is fixed to the upper surface side of the support member in a manner in which movement in the vertical direction is prevented.
[0013]
According to the experimental bench of the present invention, since the decorative board is not bonded and fixed to the support member with an adhesive, the number of manufacturing steps is small and the productivity is excellent. In addition, since the engaging head of the protruding 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 is surely moved in the vertical direction. And is fixed to the upper surface side of the support member in such a manner that the movement in the horizontal direction is considerably prevented. Therefore, when it becomes necessary to replace the decorative plate, the decorative plate is slid along the length direction of the slide groove so that the engaging head of the protruding member is placed in the receiving hole of the decorative plate. Then, if the decorative plate is moved upward, the decorative plate can be detached from the support member, and only the decorative plate can be removed by such a simple operation. When installing a new replacement decorative plate, the replacement decorative plate is disposed on the support member, and the engaging head of the protruding member on the upper surface of the support member is disposed in the receiving hole on the back surface of the replacement decorative plate. After the caulking, the decorative decorative plate can be fixed by sliding the decorative plate along the length direction of the sliding groove and engaging the engaging head in the sliding groove. The replacement decorative plate can be attached and fixed by such a simple operation. Since the adhesive plate or the like is not adhered to the decorative plate that has been removed and collected, the recovered decorative plate can be sufficiently recycled.
[0014]
In the experimental bench according to the present invention, the support member is made of a core material of the top plate, and an edge member that integrally holds the core material of the top plate and the decorative plate is provided at the peripheral portion thereof. It is preferable to adopt. In this case, the decorative board 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 reliably prevented.
[0015]
Moreover, it is preferable that the protruding member is formed by a screw member screwed onto the upper surface of the support member. By merely screwing the screw member onto the upper surface of the support member, the projecting member can be projected on the upper surface of the support member, so that productivity can be further improved and costs can be reduced.
[0016]
Moreover, 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 toward the other end side. When the engaging head of the protruding member is slid toward the other end in the slide groove, the engaging head gradually moves from a loose state to a tight state as it approaches the other end. Thus, the engagement is fixed at the other end side, and smooth engagement and fixation are realized in the process of the slide movement operation. Similarly, in the process of the slide movement operation in the reverse direction, smooth engagement / fixation release is realized.
[0017]
Further, the method for replacing the decorative board of the experimental table according to the present invention is such that the decorative board of the experimental table according to any one of the above configurations is slid along the length direction of the sliding groove to engage the protruding member. A step of disposing the joint head in the receiving hole of the decorative plate and then moving the decorative plate upward to separate it from the support member; and a replacement decorative plate having the same configuration as the detached decorative plate After placing the engaging head of the protruding member on the upper surface of the support member in the receiving hole on the back surface of the replacement decorative plate, the decorative plate is placed in the length direction of the slide groove. Slidably moving the engaging head in the sliding groove to fix the replacement decorative plate to the upper surface side of the support member. According to this replacement method, a decorative board that needs to be replaced can be quickly and easily replaced with a new replacement decorative board. In addition, since the adhesive plate or the like is not attached to the detached decorative plate, the recycled decorative plate can be sufficiently recycled.
[0018]
In addition, another experimental table according to the present invention, which can replace the decorative plate, includes a decorative plate, a support member that supports the decorative plate, a bolt, and a nut, and the support member has a through hole. On the other hand, an engagement hole is formed in the back surface of the decorative plate, and the engagement hole includes a reception hole that can receive the head of the bolt, and a slide groove that communicates with the reception hole. The opening width of the slide groove is set smaller than the diameter of the bolt head, the shaft portion of the bolt is inserted into the through hole of the support member, and the bolt head is a 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 and fastened to the bolt shaft portion that is fitted and engaged in and protrudes from the lower surface of the support member. It is characterized by.
[0019]
According to the experimental bench of the present invention, since the decorative board is not bonded and fixed to the support member with an adhesive, 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 movement in the vertical direction is reliably prevented and the movement in the horizontal direction is also reliably prevented. Thus, when it is necessary to replace the decorative plate, the screw is tightened and the nut is removed, the nut is removed, and then the bolt is removed from the through hole of the support member. It can be made to detach from, and only a decorative board can be removed by such a simple operation. When installing a new replacement decorative plate, place the replacement decorative plate with the bolts integrally attached to the back surface on the support member, and insert the bolt shaft into the through hole of the support member. The replacement decorative plate can be fixed by screwing and tightening the nut to the bolt shaft protruding from the lower surface of the support member. The replacement decorative plate can be attached and fixed by such a simple operation. Since the adhesive plate or the like is not adhered to the decorative plate that has been removed and collected, the recovered decorative plate can be sufficiently recycled.
[0020]
According to another aspect of the present invention, there is provided a method for replacing a decorative board of a test bench, wherein the nut of the test bench according to the above configuration is released and the nut is removed, 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 sliding the head of the bolt from the slide groove of the decorative plate into the receiving hole to release the bolt from the decorative plate. And 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 head is slid and engaged in the slide groove. The bolt is integrally attached to the replacement decorative plate, the replacement decorative plate to which the bolt is integrally attached is disposed on the support member, and the shaft portion of the bolt is inserted into the through hole of the support member. Inserted into 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, a decorative board that needs to be replaced can be quickly and easily replaced with a new replacement decorative board. In addition, since the adhesive plate or the like is not attached to the detached decorative plate, the recycled decorative plate can be sufficiently recycled.
[0021]
Further, the decorative board for an experimental table according to the present invention comprises a flat plate having an engagement hole formed on the back surface, and the engagement hole comprises a receiving hole and a slide groove communicating with the receiving hole, The opening width of the slide groove is set smaller than the inner depth.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
1 to 6 show an embodiment of an experimental table (1) capable of replacing a decorative board according to the first invention. As shown in FIG. 5, the experimental table (1) of the present embodiment has a base (24) having a three-dimensional frame structure formed by assembling and fixing a plurality of frame members (21). The top plate (7) is placed on and fixed to the upper surface of (). (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 (see FIG. 4 and 6). The bottom plate (9) is fixed to the upper surface of the base (24).
[0024]
As shown in FIG. 3, the support member (4) has a short core (42), (42), (42) between a pair of long cores (41) (41) that are spaced apart from each other. ) (42) (42) are connected and fixed. The intervals between the adjacent core members (42) (42) are set to be substantially equal. In addition, although illustration is abbreviate | omitted, the paper (paper) core material of honeycomb structure is arrange | positioned in the space (4 places) between adjacent core materials (42) (42).
[0025]
Protruding members (5), (5), (5), (5), (5), and (5) project from the upper surface of the support member (4). That is, as shown in FIG. 3, the 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 protrudingly provided. The protruding member (5) includes a support shaft (10) joined to the support member (4) and an engaging head (11) having a diameter larger than the diameter of the support shaft (10).
[0026]
In the present embodiment, the protruding member (5) is formed by a screw member screwed onto the upper surface of the support member (4). Further, the screwing direction of the screw member, that is, the axial direction of the support shaft (10) of the protruding member (5) is arranged to be slightly inclined with respect to the thickness direction of the support member (4) (FIG. 4). reference).
[0027]
The decorative plate (2) is a flat plate having the same size as the outer diameter of the support member (4), and the back surface thereof has engagement holes (3) (3) (3) (3) (3) (3). ) Is drilled (see FIG. 1). That is, the engagement holes (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) 3) (3) is provided.
[0028]
As shown in FIG. 1, the engaging hole (3) has a receiving hole (12) capable of receiving the engaging head (11) of the protruding member (5) so as to freely enter and exit, and the receiving hole (12). It consists of a slide groove (13) in communication. 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). Further, 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 relationship of W <Y is established. Further, the groove bottom surface (14) of the slide groove (13) gradually decreases in depth from the receiving hole (12) side to the other end side (right side of the drawing) as shown in FIG. It is formed on an inclined surface.
[0029]
Thus, the experimental table (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 laminated and integrated thereon. At this time, the engaging heads (11), (11), (11), (11), (11), and (11) of the protruding member protrude upward from the upper surface of the support member (4).
[0030]
Next, the decorative plate (2) is placed on the support member (4), and the engagement head (11) on the upper surface of the support member (4) is placed on the receiving hole ( 12) (see FIG. 4A). Then, the engaging head (11) is engaged with the slide groove (13) by sliding the decorative plate (2) along the length direction of the slide groove (13) (FIG. 4 ( (See b)). At this time, since the groove bottom surface (14) of the slide groove (13) is formed in the inclined surface as described above, the engagement 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 tight state as it approaches the other end side. Thus, the engagement is sufficiently fixed, and thus smooth engagement and fixation can be realized in the process of the slide movement operation. Thus, the engagement head (11) on the upper surface of the support member (4) is fitted in the slide groove (13) on the back surface side of the decorative plate (2) and cannot be removed in the vertical direction. Thus, 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 addition, in this embodiment, as shown in FIG. 5, the structure which arrange | positions four decorative boards (2) (2) (2) (2) in abutting form, and arrange | positions on the uppermost surface of an experimental stand (1). Adopted.
[0031]
Next, as shown in FIG. 5 and FIG. 6, these (on the periphery of the top plate (7) composed of the bottom plate (9), the support member (core material of the top plate) (4), and the decorative plate (2) ( 9) Mount and fix the edge member (20) that integrally holds (4) and (2). That is, a fitting protrusion (20a) is provided at the center in the vertical direction on the inner surface of the edge member (20), and the fitting protrusion (20a) is formed on the outer peripheral side surface of the support member (4). The edge member (20) is fixed to the peripheral edge of the top plate (7) by being fitted in the groove. Thus, the experimental table (1) shown in FIG. 5 is manufactured.
[0032]
Therefore, when it becomes necessary to replace the decorative plate (2), the decorative plate (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 protruding member (5) is moved into the receiving hole (12) of the decorative plate. Then, the decorative board (2) is moved upward to disengage the decorative board (2) from the support member (4). Since the adhesive plate or the like is not adhered to the decorative plate (2) thus removed and collected, the recovered decorative plate (2) can be sufficiently recycled.
[0033]
Next, a replacement decorative plate (2) having the same configuration as the detached decorative plate is placed on the support member (4), and the engagement head (11) on the upper surface of the support member (4) is replaced. After placing the decorative board (2) in the receiving hole (12) on the back surface of the decorative board (2), the decorative board (2) is slid along the length direction of the sliding groove (13) to engage the head ( 11) is engaged in the slide groove (13) to fix the replacement decorative plate (2) to the upper surface side of the support member (4). Further, the edge member (20) is attached and fixed to the peripheral portion of the top plate (7) to complete the replacement operation (see FIG. 6). According to such a method of replacing the decorative board, the decorative board (2) can be replaced quickly and easily.
[0034]
One embodiment of the experimental table (1) capable of replacing the decorative plate according to the second invention is shown in FIGS. As shown in FIG. 5, the experimental table (1) of the present embodiment has a base (24) having a three-dimensional frame structure formed by assembling and fixing a plurality of frame members (21). The top plate (7) is placed on and fixed to the upper surface of (). (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 (see FIG. 6). The bottom plate (9) is fixed to the 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) (42) are connected and fixed. The intervals between the adjacent core members (42) (42) are set to be substantially equal. In addition, although illustration is abbreviate | omitted, the paper (paper) core material of honeycomb structure is arrange | positioned in the space (4 places) between adjacent core materials (42) (42).
[0037]
The support member (4) is formed with through holes (32) (32) (32) (32) (32) (32) penetrating in the vertical direction. That is, as shown in FIG. 8, through-holes (32) are formed in both longitudinal ends 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 a flat plate having the same size as the outer diameter of the support member (4), and the back surface thereof has engagement holes (3) (3) (3) (3) (3) (3). ) Is drilled (see FIG. 1). That is, the engagement holes (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) 3) (3) is provided.
[0039]
As shown in FIG. 1, the engagement hole (3) has a receiving hole (12) capable of receiving the head (30a) of the bolt (30) so as to freely enter and exit, and a slide for communicating with the receiving hole (12). It consists of 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. 2 (B)). Further, 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 relationship of W <Y is established. Further, the groove bottom surface (14) of the slide groove (13) is inclined such that the depth gradually decreases from the receiving hole (12) side toward the other end side (right side in the drawing) as shown in FIG. Formed on the surface.
[0040]
Thus, the experimental table (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 laminated and integrated thereon.
[0041]
Next, after the head (30a) of the bolt (30) is placed in the receiving hole (12) on the back surface of the decorative plate (2) as shown in FIG. ) Is slid along the length direction of the slide groove (13) and engaged with the slide groove (13) (see FIG. 7B).
[0042]
The decorative plate (2) to which the bolt (30) is integrally attached is arranged on the support member (4), and the bolt shaft (30b) is inserted into the through hole (32) of the support member (4). ). Thereafter, the nut (31) is screwed and tightened to the bolt shaft portion (30b) protruding downward from the lower surface of the support member (4). In this manner, the shaft portion (30b) of the bolt is inserted into the through hole (32) of the support member (4), and the bolt head portion (30a) is fitted in the slide groove (13) on the back surface of the decorative plate. The nut (31) is screwed and tightened to the bolt shaft portion (30b) that is engaged and engaged and protrudes from the lower surface of the support member (4), and the decorative plate (2) is on the upper surface side of the support member (4). (See FIG. 9). In addition, in this embodiment, as shown in FIG. 5, the structure which arrange | positions four decorative boards (2) (2) (2) (2) in abutting form, and arrange | positions on the uppermost surface of an experimental stand (1). Adopted.
[0043]
Next, as shown in FIG. 5 and FIG. 6, these (on the periphery of the top plate (7) composed of the bottom plate (9), the support member (core material of the top plate) (4), and the decorative plate (2) ( 9) Mount and fix the edge member (20) that integrally holds (4) and (2). That is, a fitting protrusion (20a) is provided at the center in the vertical direction on the inner surface of the edge member (20), and the fitting protrusion (20a) is formed on the outer peripheral side surface of the support member (4). The edge member (20) is fixed to the peripheral edge of the top plate (7) by being fitted in the groove. Thus, the experimental table (1) shown in FIG. 5 is manufactured.
[0044]
Therefore, when it becomes necessary to replace the decorative plate (2), the decorative plate (2) is replaced as follows. That is, the edge member (20) is first removed. Next, after releasing the screwed tightening state of the nut (31) and removing the nut (31) from the bolt shaft portion (30b), the bolt (30) is removed from the through hole (32) of the support member (4). The decorative board (2) is detached from the support member (4) by removing. Next, the bolt head (30a) is slid into the receiving hole (12) from the slide groove (13) of the decorative plate (2), and the bolt (30) is detached from the decorative plate (2). Since the adhesive plate or the like is not attached to the decorative plate (2) thus removed and collected, and is separated from the bolt (30), the recovered decorative plate (2) can be sufficiently recycled. is there.
[0045]
Next, after the bolt head (30a) is disposed in the receiving hole (12) on the back surface of the replacement decorative board (2) having the same configuration as the detached decorative board (see FIG. 7 (a)), The bolt (30) is integrally attached to the replacement decorative plate (2) by sliding the bolt head (30a) and engaging it in the slide groove (13) (see FIG. 7B). .
[0046]
Thus, the decorative decorative plate (2) to which the bolt (30) is integrally attached is arranged on the support member (4), and the shaft portion (30b) of the bolt penetrates the support member (4). After the insertion through the hole (32), the replacement decorative plate (2) is mounted by screwing and tightening the nut (31) to the bolt shaft portion (30b) protruding downward from the lower surface of the support member (4). It fixes to the upper surface side of a supporting member (4) (refer FIG. 9). Further, the edge member (20) is attached and fixed to the peripheral portion of the top plate (7) to complete the replacement operation (see FIG. 9). According to such a method of replacing the decorative board, the decorative board (2) can be replaced quickly and easily.
[0047]
The above-mentioned decorative board replacement methods are merely examples of suitable examples, and the experimental table (1) of the present invention is particularly limited to the one in which the decorative boards are replaced by the above-described exemplary replacement method. Is not to be done.
[0048]
Moreover, in the said embodiment, although the support member (4) employ | adopts the structure which consists of a core material of a top plate, it is not specifically limited to such a structure.
[0049]
In this invention, as a raw material of a decorative board (2), although it does not specifically limit, For example, a melamine resin, a ceramic, a thermosetting resin etc. are mentioned. Moreover, as a raw material of the core material of a top plate, although it does not specifically limit, MDF etc. are mentioned, for example.
[0050]
In the first invention, the position and the number of the protruding members (5) provided on the upper surface of the support member (4) are not particularly limited. Similarly, the position and the number of 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 protruding member (5) is provided at at least four corners of the upper surface of the support member (4), And it is preferable that the said engagement hole (3) is provided in the at least four corner part of the back surface of the said decorative board (2), and the said through hole (32) is the at least four corner part of the said supporting member (4) from the same viewpoint. Is preferably provided.
[0051]
【The invention's effect】
According to the first aspect of the present invention, the decorative plate is fixed to the upper surface side 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 also substantially prevented. Since the decorative plate is not bonded and fixed to the support member with an adhesive, the number of manufacturing steps is small and the productivity is excellent. In addition, when it becomes necessary to replace the decorative plate, it is possible to remove and attach only the decorative plate and to attach and fix a new replacement decorative plate with a simple operation. In this way, it is possible to replace only the decorative plate and avoid discarding the entire experimental table, which can sufficiently contribute to environmental protection. In addition, since the adhesive plate or the like is not attached to the detached decorative plate, the recycled decorative plate can be sufficiently recycled.
[0052]
According to the invention of
[0053]
According to the invention which concerns on
[0054]
According to the fourth aspect of the present invention, smooth engagement / fixation can be realized in the process of sliding movement of the decorative plate, and smooth engagement / release can be realized in the process of sliding movement in the reverse direction.
[0055]
According to the fifth aspect of the invention (exchange method), a decorative board that needs to be replaced can be quickly and easily replaced with a new replacement decorative board. In addition, since the adhesive plate or the like is not attached to the detached decorative plate, the recycled decorative plate can be sufficiently recycled.
[0056]
According to the sixth aspect of the present invention, 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 is reliably prevented and the movement in the horizontal direction is also reliably prevented. Since the decorative plate is not bonded and fixed to the support member with an adhesive, the number of manufacturing steps is small and the productivity is excellent. Moreover, when it becomes necessary to replace the decorative plate, it is possible to remove and attach only the decorative plate by a simple operation. In this way, it is possible to replace only the decorative plate and avoid discarding the entire experimental table, which can sufficiently contribute to environmental protection. In addition, since the adhesive plate or the like is not attached to the detached decorative plate, the recycled decorative plate can be sufficiently recycled.
[0057]
According to the seventh aspect of the invention (exchange method), the decorative board that needs to be replaced can be quickly and easily replaced with a new replacement decorative board. In addition, since the adhesive plate or the like is not attached to the detached decorative plate, the recycled decorative plate can be sufficiently recycled.
[0058]
With the invention according to claim 8 (decorative board for experimental table), the operation of replacing the decorative board on the experimental table can be performed quickly and easily.
[Brief description of the drawings]
FIG. 1 is a plan view showing a back surface of a decorative board of an experimental table 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 experimental bench of the first invention.
4A is a cross-sectional view showing a state in which the engaging head of the protruding member is disposed in the receiving hole of the decorative plate, and FIG. 4B is a diagram for sliding the engaging head by sliding the decorative plate. It is sectional drawing which shows the state engaged in the groove | channel.
FIG. 5 is a perspective view showing an experimental bench according to the first and second inventions.
6 is a cross-sectional view taken along line DD in 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. 7B is a perspective view showing a state where the bolt head is placed in a slide groove. It is a perspective view which shows the state which engaged and integrated in the inside.
FIG. 8 is a perspective view showing a support member of the experimental bench of the second invention.
9 is a cross-sectional view showing an engagement fixing portion of the experimental 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 stand
2 ... Decorative plate
3 ... engagement hole
4. Support member
5 ... Projection member
10 ... Support shaft
11 ... engaging head
12 ... Reception 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 (6)
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、
前記支持部材が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ことを特徴とする化粧板の交換が可能な実験台。A decorative plate and a support member for supporting the decorative plate;
A protruding member having an engaging head protrudes from the upper surface of the support member,
An engagement hole is formed in the back surface of the decorative plate, and the engagement hole includes a reception hole that can receive the engagement head, and a slide groove that communicates with the reception hole. The opening width is set smaller than the diameter of the engaging 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 is moved in the vertical direction. Fixed to the upper surface side of the support member in a blocked manner ,
Replacing the decorative board, wherein 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 at the peripheral portion thereof. An experimental bench that can.
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。The receiving head of the said decorative plate makes the engaging head of the said protrusion member by sliding the decorative plate of the experimental stand of any one of Claims 1-3 along the length direction of the said groove | channel for a slide. A step of moving the decorative plate upward and disengaging it from the support member,
A replacement decorative plate having the same configuration as the detached decorative plate is disposed on the support member, and an engaging head of a protruding member on the upper surface of the support member is placed in a receiving hole on the back surface of the replacement decorative plate. After the placement, the decorative plate is slid along the length direction of the slide groove to engage the engaging head in the slide groove, and the replacement decorative plate is placed on the upper surface side of the support member. And a method of replacing the decorative board of the experimental table.
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、
前記支持部材が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 that supports the decorative plate, a bolt, and a nut;
While a through hole is formed in the support member,
An engagement hole is formed on the back surface of the decorative plate, and the engagement hole includes a reception hole that can receive the head of the bolt, and a slide groove that communicates with the reception hole. The opening width is set smaller than the diameter of the bolt head,
A bolt projecting from the lower surface of the support member, wherein the shaft portion of the bolt is inserted and disposed in the through hole of the support member, and the bolt head portion is fitted into 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 screwing and tightening the nut to the shaft portion ,
Replacing the decorative board, wherein 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 at the peripheral portion thereof. An experimental bench that can.
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。6. After releasing the screw tightening of the nut of the experimental table according to claim 5 and removing the nut, the decorative plate is detached from the support member by removing the bolt from the through hole of the support member. Process,
Sliding the bolt head from the slide groove of the decorative plate into the receiving hole to disengage the bolt from the decorative plate;
After the bolt head is placed in the receiving hole on the back surface of the replacement decorative board having the same configuration as the detached decorative board, the bolt head is slid to engage with the slide groove. A process of attaching to the decorative decorative plate,
A bolt shaft that protrudes from the lower surface of the support member after the replacement decorative plate, to which the bolt is integrally attached, is disposed on the support member, and the shaft portion of the bolt is inserted into the through hole of the support member. And a step of fixing the replacement decorative plate to the upper surface side of the support member by screwing and tightening 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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| KR100838320B1 (en) | 2007-11-22 | 2008-06-13 | 삼인싸이언스(주) | A detachable seperate type upper board |
| KR100917346B1 (en) | 2008-10-08 | 2009-09-16 | 김경필 | Panel assembly for manufacturing experiment table |
| JP5464848B2 (en) * | 2008-12-15 | 2014-04-09 | 株式会社國定製作所 | Experimental table and method of assembling the decorative plate of the experimental table |
| JP5336289B2 (en) * | 2009-07-29 | 2013-11-06 | 株式会社國定製作所 | How to install the decorative board on the laboratory table |
| JP2012024732A (en) * | 2010-07-27 | 2012-02-09 | Sanshin Kinzoku Kogyo Kk | Laboratory table with exchangeable decorative board, and method of fixing decorative board |
| CH705298A1 (en) * | 2011-07-21 | 2013-01-31 | Tecan Trading Ag | Bench with table-top elements. |
| US20150147113A1 (en) * | 2013-11-26 | 2015-05-28 | II Phillip C. Crabtree | Frameless furniture system |
| WO2017123180A1 (en) * | 2016-01-13 | 2017-07-20 | Momis Mobilya Sanayi Ve Dis Ticaret Anonim Sirketi | Bracket enabling use of decorative furniture pieces on cover |
| KR101966087B1 (en) * | 2018-08-13 | 2019-04-05 | (주)코아스 | Connection device for assembly furniture |
| CN112871238A (en) * | 2021-01-20 | 2021-06-01 | 江苏安全技术职业学院 | Electric engineering and automatic comprehensive experiment device |
| JP7064032B1 (en) | 2021-02-19 | 2022-05-09 | 大建工業株式会社 | Wall storage unit and wall storage device |
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