JP4888926B2

JP4888926B2 - Physics and chemistry frame

Info

Publication number: JP4888926B2
Application number: JP2000376484A
Authority: JP
Inventors: 栄三郎山中
Original assignee: 有限会社ヤマナカ
Priority date: 2000-12-11
Filing date: 2000-12-11
Publication date: 2012-02-29
Anticipated expiration: 2020-12-11
Also published as: JP2002177799A

Description

【０００１】
【発明の属する技術分野】
本発明は、実験台上に配設され且つ器具取付金具を安定的に取り付けることができる理化学用枠体に関する。
【０００２】
【従来の技術】
従来から理化学用実験台上には理化学用枠体が配設されており、この理化学用枠体は、円柱状の縦杆と横杆とを格子状に組み合わせるとともに、上記縦杆と上記横杆とをそれらの交差部分において挟持金具を用いて連結一体化することによって組み立てられている。
【０００３】
詳細には、上記挟持金具Ａは、図６、図７に示すように、断面く字状の挟持溝A11 、A21 を夫々有する垂直挟持部A1と水平挟持部A2とを背中合わせにして一体化していると共にこれらの垂直挟持部A1と水平挟持部A2とのそれぞれの挟持溝A11 、A21 に向かって進退自在な螺子棒A12 、A22 を備えてなり、この挟持金具Ａを上記円柱状の縦杆Ｄと横杆Ｅとの各交差部に配設してその垂直挟持部A1の挟持溝A11 に縦杆Ｄを、水平挟持部A2の挟持溝A21 に横杆Ｅを夫々受け入れた状態にしたのち、螺子棒A12 、A22 を螺進させてその先端部を縦杆Ｄと横杆Ｅに当接させることにより縦杆Ｄと横杆Ｅを交差した状態で連結一体化し、格子状の理化学用枠体を組立てている。
【０００４】
そして、この格子状に組立てられた理化学用枠体に実験器具支持具Ｃを支持させる場合、上記挟持金具Ｂと同一構造の器具取付金具Ｂを用いて、その垂直挟持部B1と水平挟持部B2とのいずれか一方の挟持部の挟持溝と螺子棒とによって円柱状の縦杆Ｄ又は横杆Ｅの適所にこの器具取付金具Ｂを固定し、他方の挟持部の挟持溝と螺子棒とによって上記実験器具支持具Ｃを挟持、固定させたのち、この実験器具支持具Ｃの先端部に実験器具を支持させて実験台上に実験装置を配設し種々の実験を行っている。
【０００５】
しかしながら、従来の理化学用枠体の縦杆Ｄ及び横杆Ｅは円柱状に形成されていることから、例えば、図６及び図８に示したように、器具取付金具Ｂをその水平挟持部B2に横杆Ｅを挟持させることによって該横杆Ｅに固定させた場合において、器具取付金具Ｂに支持させた実験器具支持具Ｃの先端部に配設した実験器具の重さが重いときや、器具取付金具Ｂの水平挟持部B2における上記横杆Ｅへの挟持、固定が不十分であるときには、上記器具取付金具Ｂの挟持用螺子棒B12 の先端面が上記理化学用枠体の横杆Ｅの凸円弧状面に沿って滑動して、上記器具取付金具Ｂが上記横杆Ｅを中心にして下方に不測に回動、変位し、この器具取付金具Ｂの回動に伴って該器具取付金具Ｂに支持させた実験器具支持具Ｃの先端部に配設した実験器具の位置が変位して実験器具相互間の相対位置が変化し実験器具が破損したり、或いは、実験器具内に入れた化学薬品が不測にこぼれるといった問題点があった。
【０００６】
又、図７及び図９に示したように、上記器具取付金具Ｂをその垂直挟持部B1を利用して縦杆Ｄに挟持、固定させている場合には、器具取付金具Ｂに支持させた実験器具支持具Ｃに不測に接触した際、上記器具取付金具Ｂの上記縦杆Ｄへの挟持、固定が不十分であるときには、上記と同様に、上記器具取付金具Ｂの挟持用螺子棒B12 の先端面が上記理化学用枠体の縦杆Ｄの凸円弧状面に沿って滑動して、上記器具取付金具Ｂが上記縦杆Ｄを中心にして水平方向に不測に回動、変位し、この器具取付金具Ｂの回動に伴って該器具取付金具Ｂに支持させた実験器具支持具Ｃの先端部に配設した実験器具の位置が変位して実験器具相互間の相対位置が変化し実験器具が破損したりするといった問題点があった。
【０００７】
【発明が解決しようとする課題】
本発明は、器具取付金具を安定した状態に支持させて、この器具取付金具に取り付けた実験器具支持具を介して実験器具を安定的に支持することができる理化学用枠体を提供する。
【０００８】
【課題を解決するための手段】
本発明の理化学用枠体は、実験台上に複数本の縦杆と横杆とを格子状に組み合わせてその交差部を挟持金具によって挟持、固定させることにより連結一体化してなる理化学用枠体であって、上記縦杆及び横杆は断面正方形の角棒状に形成されてあり、これらの縦杆と横杆とをその任意の稜角部を正面に向けた状態にして格子状に組み合わせている一方、上記挟持金具は、直角に屈折した断面く字状の挟持溝を有する垂直挟持部と水平挟持部とを背中合わせにして一体化していると共にこれらの垂直挟持部と水平挟持部とのそれぞれの挟持溝の溝底に向かって進退自在な螺子棒を備えてなり、上記縦杆における正面に向けている上記稜角部を中央にして互いに直角に連なった両面を上記挟持金具における上記垂直挟持部の挟持溝に面接触状態で受止させると共に、上記横杆における背面に向けている稜角部を中央にして互いに直角に連なった両面をこの挟持金具における上記水平挟持部の挟持溝に面接触状態で受止させた状態にして、上記螺子棒の先端を上記縦杆及び横杆における上記挟持金具の挟持溝に面した稜角部とは反対側の稜角部に夫々押し付けることにより、縦杆と横杆との交差部を一体に挟着、固定していることを特徴とする。
【０００９】
【作用】
本発明の理化学用枠体は、これを構成する縦杆及び横杆が角棒状に形成されていることから、器具取付金具の挟持部のく字状挟持溝の両側傾斜面を上記理化学用枠体の縦杆又は横杆の一つの稜角部を中央にしてその両側方に連なった平坦面に面接触状に当接させた状態にして上記器具取付金具の挟持部を上記理化学用枠体の縦杆又は横杆に挟持、固定すると、上記器具取付金具の挟持溝の両側傾斜面と上記理化学用枠体の縦杆又は横杆との平坦面とが強固に係止して上記器具取付金具が上記理化学用枠体の縦杆又は横杆回りに不測に回動するのを確実に防止することができ、従って、実験器具の位置が不測に変位したり実験器具が破損したりすることはない。
【００１０】
【発明の実施の形態】
本発明の理化学用枠体の一例を図面を参照しつつ説明する。図１及び図２に示したように、理化学用枠体１は、断面正方形状で一定長さを有する角棒材からなる複数本の縦杆11及び横杆12を任意の稜角部111 、121 が正面に指向した状態にして格子状に組み合わせるとともに、上記縦杆11と上記横杆12との交差部分に挟持金具Ａを配設して上記縦杆11と上記横杆12とを上記挟持金具Ａを介して連結一体化させることによって構成されている。なお、上記理化学用枠体１における縦杆11のうちの少なくとも一本、横杆12のうちの少なくとも一本が角棒状であればよい。
【００１１】
又、上記挟持金具Ａは、直角に屈折した断面く字状の挟持溝A11 、A21 をそれぞれ有する一定長さの一対の挟持部A1、A2と、これらの挟持部A1、A2の上記挟持溝A11 、A21 に対して夫々進退自在な挟持用螺子棒A12 、A22 とからなり、上記断面く字状の挟持部A1、A2は、一方の挟持部A1を水平方向に向け、他方の挟持部A2を垂直方向に向けた状態で背中合わせにして一体的に固着している。
【００１２】
そして、これらの挟持部A1、A2の一側端部に起立片A31 、A32 を突設するとともに、該起立片A31 、A32 の先端に上記挟持溝A11 、A21 に対向した螺子取付片A41 、42を一体に設けてあり、この螺子取付片A41 、A42 の中央螺子孔A411、A421に上記挟持用螺子棒A12、A22 を挿通させて、その先端をく字状に屈折してなる上記挟持溝A11 、A21 の溝底に向けている。
【００１３】
このように構成している挟持金具Ａの一方、即ち、垂直挟持部A1に上記縦杆11を、他方、即ち、水平挟持部A2に上記横杆12を夫々挟持、固定させることによって上記縦杆11及び上記横杆12を格子状に組み合わせて連結一体化されて形成されている。
【００１４】
詳細には、上記挟持金具Ａの垂直挟持部A1におけるく字状挟持溝A11 の両側傾斜面に上記縦杆11における直角に連なった面112 、112 を面接触状に当接、受止させた状態に配設した後、挟持用螺子棒A12 を螺進させて上記縦杆11の背面に向けている稜角部111 に圧接させることによって、上記く字状挟持溝A11 の両側傾斜面と上記挟持用螺子棒A12 とにより上記縦杆11を挟持して該縦杆11を上記挟持金具Ａの垂直挟持部A1に安定的に固定させている。
【００１５】
同様に、上記挟持金具Ａの水平挟持部A2におけるく字状挟持溝A21 の両側傾斜面に上記横杆12における直角に連なった面122 、122 を面接触状に当接、受止させた状態に配設した後、挟持用螺子棒A22 を螺進させて上記横杆12の正面に向けている稜角部121 に圧接させることによって、上記く字状挟持溝A21 の両側傾斜面と上記挟持用螺子棒A22 とにより上記横杆12を挟持して該横杆12を上記挟持金具Ａの水平挟持部A2に安定的に固定させている。
【００１６】
そして、実験台Ｆ上には二本の支持杆Ｇ、Ｇが水平方向に一定間隔を存して垂直方向に起立した状態に配設されており、この支持杆Ｇ、Ｇに、上記挟持金具Ａを用いてこの挟持金具Ａにより格子状に組み立てられた上記縦杆11及び上記横杆12における横杆12の両端部を上記同様に挟着、支持させることによって、上記複数本の縦杆11と横杆12とを格子状に組み立てることにより形成された理化学用枠体１が上記実験台Ｆ上に安定した状態に配設されている。
【００１７】
次に、上記理化学用枠体１の使用要領について説明する。始めに、上記理化学用枠体１の縦杆11に器具取付金具Ｂを固着し、この器具取付金具Ｂに取り付けた実験器具支持具Ｃに実験器具Ｈを支持させ、実験器具Ｈを実験台Ｆ上に配設する要領について説明する。
【００１８】
なお、上記器具取付金具Ｂは上記挟持金具Ａと同一構造を有するものであり、具体的には、略直角に屈折した断面く字状の一対の挟持部B1、B2と、これらの挟持部B1、B2の挟持溝B11 、B21 に対して夫々進退自在な挟持用螺子棒B12 、B22 とからなり、上記断面く字状の挟持部B1、B2は、互いに９０・に交差してねじれの方向に指向し且つ背中合わせ状に連結されている。
【００１９】
そして、これらの挟持部B1、B2の一側端部に起立片B31 、B32 を突設するとともに、該起立片B31 、B32 の先端に上記挟持溝B11 、B21 に対向した螺子取付片B41 、B42 を一体に設けてあり、この螺子取付片B41 、B42 の中央螺子孔B411、B421に上記挟持用螺子棒B12 、B22 を挿通させて、その先端をく字状に屈折してなる上記挟持溝B11 、B21 に向けている。
【００２０】
そして、実験器具支持具Ｃも、従来から用いられている実験器具支持具Ｃが用いられ、具体的には、例えば、一定長さを有する断面円形状の棒状体からなる支持棒C1とこの支持棒C1の先端部に一体的に設けられた実験器具Ｈを挟持する器具挟持部C2とからなる。
【００２１】
先ず、図１及び図３に示したように、上記器具取付金具Ｂにおける垂直方向に向いた一方の挟持部B1におけるく字状挟持溝B11 の両側傾斜面に上記縦杆11における直角に連なった面112 、112 を面接触状に当接、受止させた状態に配設した後、挟持用螺子棒B12 を螺進させて上記縦杆11の側方を向いている稜角部113 に圧接させることによって、上記く字状挟持溝B11 と上記挟持用螺子棒B12 とにより上記縦杆11を挟持して上記器具取付金具Ｂを上記縦杆11の所望位置に安定的に取り付ける。
【００２２】
そして、上記器具取付金具Ｂにおける水平方向に向いた他方の挟持部B2に実験器具支持具Ｃの支持棒C1を挟持、固定させて、上記実験器具支持具Ｃをその器具挟持部C2が前方に突出した状態に安定的に配設する。上記要領を繰り返して、同じ縦杆11に二つの実験器具支持具Ｃ、Ｃの器具挟持部C2、C2が上下方向に所定間隔を存して前方に突出した状態とする。
【００２３】
しかる後、上記上側の実験器具支持具Ｃの器具挟持部C2に例えばコンデンサーH1を挟持、取付けるとともに、上記下側の実験器具支持具Ｃの器具挟持部C2に例えば丸底フラスコH2を挟持、取り付け、上記コンデンサーH1の下端部を上記丸底フラスコH2の上端開口部内に挿入、固定させることによって実験台Ｆ上に実験装置を配設する。
【００２４】
この状態においては、図３に示したように、上記器具取付金具Ｂの一方の挟持部B1と上記理化学用枠体１の縦杆11とは、上記垂直挟持部B1のく字状挟持溝B11 の両側傾斜面と上記縦杆11の稜角部114 に連なる両側平坦面112 、112 とが合致した係止状態となっているので、上記実験器具H1、H2にたとえ手などが接触した場合にあっても、上記器具取付金具Ｂは上記縦杆11回りに不測に回動したりすることはなく、その取付状態を確実に維持し、よって、上記器具取付金具Ｂに取り付けた実験器具支持具Ｃの器具挟持部C2に挟持、支持した実験器具はその配設位置を確実に維持し、例えば、上記コンデンサーH1と上記丸底フラスコH2との相対位置が変化して、上記コンデンサーH1と上記丸底フラスコH2との接続部分において上記丸底フラスコH2や上記コンデンサーH1が不測に破損するといったことはない。
【００２５】
しかも、上記器具取付金具Ｂは、その垂直方向に向いて挟持部B1のく字状挟持溝B11 の両側傾斜面を上記縦杆11の稜角部114 に連なる両外周平面112 、112 に当接、受止させた状態に上記縦杆11に取付けられていることから、上記器具取付金具Ｂは上記縦杆11に対して所定の角度に自動的に位置決めされ、従って、上記縦杆11に取り付けられる上記器具取付金具Ｂの他方の挟持部B2は常に一定方向を指向しており、上記縦杆11に複数個の器具取付金具Ｂを取付けた場合には、これら全ての器具取付金具Ｂの他方の挟持部B2（実験器具支持具を取り付ける挟持部）は全て同一方向に指向する。よって、図１のように、複数個の実験器具Ｈ、Ｈ・・・を上下方向に配設する場合にあっても自動的に上下方向の実験器具Ｈ、Ｈ・・・の位置決めを行うことができ、実験器具Ｈ、Ｈ同士を簡単に且つ確実に接続することができる。
【００２６】
次に、上記理化学用枠体１の横杆12に器具取付金具Ｂを固着し、この器具取付金具Ｂに取り付けた実験器具支持具Ｃに実験器具Ｈを支持させ、実験器具Ｈを実験台Ｆ上に配設する要領について説明する。
【００２７】
先ず、図４及び図５に示したように、上記器具取付金具Ｂにおける水平方向に向いた一方の挟持部B1におけるく字状挟持溝B11 の両側傾斜面に上記横杆12における直角に連なった面122 、122 を面接触状に当接、受止させた状態に配設した後、挟持用螺子棒B12 を螺進させて上記横杆12の上方を向いている稜角部123 に圧接させることによって、上記く字状挟持溝B11 と上記挟持用螺子棒B12 とにより上記横杆12を挟持して上記器具取付金具Ｂを上記横杆12の所望位置に安定的に取り付ける。
【００２８】
そして、上記器具取付金具Ｂにおける水平方向に向いた他方の挟持部B2に実験器具支持具Ｃの支持棒C1を挟持、固定させて、上記実験器具支持具Ｃをその器具挟持部C2が前方に突出した状態に安定的に配設する。しかる後、上記上側の実験器具支持具Ｃの器具挟持部C2に実験器具H3、例えば丸底フラスコを挟持、取り付けて実験台Ｆ上に実験装置を配設する。
【００２９】
この状態においては、図５に示したように、上記器具取付金具Ｂの一方の挟持部B1と上記理化学用枠体１の横杆12とは、上記挟持部B1のく字状挟持溝B11 の両側傾斜面と上記横杆11の稜角部124 に連なる両側平坦面122 、122 とが合致した係止状態となっているので、上記実験器具H3の重量が重かったり或いは上記実験器具H3に手などが接触した場合にあっても、上記器具取付金具Ｂは上記横杆12回りに不測に回動したりすることはなく、その取付状態を確実に維持し、よって、上記器具取付金具Ｂに取り付けた実験器具支持具Ｃの器具挟持部C2に挟持、支持した実験器具H3はその配設位置を確実に維持する。
【００３０】
【発明の効果】
請求項１に記載の理化学用枠体は、実験台上に複数本の縦杆と横杆とを格子状に組み合わせてその交差部を挟持金具によって挟持、固定させることにより連結一体化してなる理化学用枠体において、上記縦杆及び上記横杆は断面正方形の角棒状に形成されているので、従来から用いられている器具取付金具をその挟持部のく字状挟持溝の両側傾斜面が上記縦杆又は上記横杆における任意の稜角部に連なる両側平坦面に合致した状態に上記縦杆又は上記横杆に取り付けることにより、上記器具取付金具が上記縦杆又は上記横杆回りに不測に回動するのを確実に防止することができ、よって、上記理化学用枠体によれば、実験台上に正確且つ確実に実験器具を配設して実験装置を組んで実験を行うことができる。
【００３１】
さらに、本発明の理化学用枠体によれば、上記縦杆と横杆とをその任意の稜角部を正面に向けた状態にして格子状に組み合わせている一方、上記挟持金具は、直角に屈折した断面く字状の挟持溝を有する垂直挟持部と水平挟持部とを背中合わせにして一体化していると共にこれらの垂直挟持部と水平挟持部とのそれぞれの挟持溝の溝底に向かって進退自在な螺子棒を備えてなり、上記縦杆における正面に向けている上記稜角部を中央にして互いに直角に連なった両面を上記挟持金具における上記垂直挟持部の挟持溝に面接触状態で受止させると共に、上記横杆における背面に向けている稜角部を中央にして互いに直角に連なった両面をこの挟持金具における上記水平挟持部の挟持溝に面接触状態で受止させた状態にして、上記螺子棒の先端を上記縦杆及び横杆における上記挟持金具の挟持溝に面した稜角部とは反対側の稜角部に夫々押し付けることにより、縦杆と横杆との交差部を一体に挟着、固定しているので、縦杆及び横杆をそれぞれ挟持金具の垂直挟持部と水平挟持部に安定的に固定させることができると共に、器具取付金具を上記縦杆又は上記横杆に取り付ける際、上記器具取付金具における挟持部のく字状挟持溝の両側傾斜面を上記縦杆又は上記横杆の任意の稜角部から互いに直角に連なる両側平坦面に合致させた安定した状態に配設させることができ、よって、上記器具取付金具を上記縦杆又は上記横杆回りに不測に回動することなく安定した状態に上記縦杆又は上記横杆に取り付けることができる。
【００３２】
その上、上記理化学用枠体によれば、器具取付金具をその一方の挟持部を用いて上記縦杆又は上記横杆に取り付ける際、上記器具取付金具の他方の挟持部を確実に且つ自動的に一定方向に指向させることができ、よって、上記器具取付金具の他の挟持部に実験器具支持具を一定方向に確実に且つ正確に突出させ、この実験器具支持具に実験器具を支持させて簡単に且つ確実に実験装置を組み立てることができる。
【図面の簡単な説明】
【図１】本発明の理化学用枠体の使用状態を示した斜視図である。
【図２】理化学用枠体の縦杆と横杆との接続部分を示した拡大斜視図である。
【図３】理化学用枠体の縦杆に器具取付金具を取り付けた状態を示した横断面図である。
【図４】本発明の理化学用枠体の使用状態を示した斜視図である。
【図５】理化学用枠体の横杆に器具取付金具を取り付けた状態を示した縦断面図である。
【図６】従来の理化学用枠体の横杆に器具取付金具を取り付けて実験器具を配設した状態を示した斜視図である。
【図７】従来の理化学用枠体の縦杆に器具取付金具を取り付けて実験器具を配設した状態を示した斜視図である。
【図８】従来の理化学用枠体の横杆に器具取付金具を取り付けた状態を示した縦断面図である。
【図９】従来の理化学用枠体の縦杆に器具取付金具を取り付けた状態を示した横断面図である。
【符号の説明】
１理化学用枠体
11 縦杆
111 稜角
112 外周平面
12 横杆
Ａ挟持金具
A1、A2 挟持部
A11 、A21 く字状挟持溝
A12 、A22 挟持用螺子棒
Ｂ器具取付金具
B1、B2 挟持部
B11 、B21 く字状挟持溝
B12 、B22 挟持用螺子棒
Ｃ実験器具支持具
C1 支持棒
C2 器具挟持部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a physics and chemistry frame that is disposed on a laboratory table and that can be stably attached with an instrument mounting bracket.
[0002]
[Prior art]
Conventionally, a physics and chemistry frame has been arranged on a laboratory table for physics and chemistry, and this physics and chemistry frame is a combination of cylindrical downspout and recumbent in a lattice shape, and the above recumbent and recumbent reed Are integrated by connecting and integrating them at the intersecting portions by using clamps.
[0003]
In particular, the clamping bracket A is 6, 7, and integrated with a vertical clamping unit A1 having s husband shaped holding grooves A11, A21 rather sectional and horizontal clamping unit A2 back alignment And screw rods A12 and A22 which are movable forward and backward toward the respective holding grooves A11 and A21 of the vertical holding portion A1 and the horizontal holding portion A2, and the holding fixture A is connected to the cylindrical vertical rod. After being placed at each intersection of D and recumbent E and receiving vertical reed D in the retaining groove A11 of the vertical retaining part A1 and recumbent E in the retaining groove A21 of the horizontal retaining part A2 The screw rods A12 and A22 are screwed and their tips are brought into contact with the vertical rod D and the horizontal rod E so that the vertical rod D and the horizontal rod E are connected and integrated, and a lattice-like physics and chemistry frame is obtained. I'm assembling my body.
[0004]
Then, when the experimental instrument support C is supported by the physics and chemistry frame assembled in the lattice shape, the vertical clamping part B1 and the horizontal clamping part B2 are used by using the instrument mounting bracket B having the same structure as the clamping bracket B. The fixture mounting bracket B is fixed to an appropriate position of the columnar vertical rod D or horizontal rod E by a clamping groove and a screw rod of one of the clamping portions, and by the clamping groove and the screw rod of the other clamping portion. After sandwiching and fixing the experimental instrument support C, the experimental instrument is supported on the tip of the experimental instrument support C and an experiment apparatus is arranged on the experimental table to perform various experiments.
[0005]
However, since the vertical rod D and the horizontal rod E of the conventional physics and chemistry frame are formed in a columnar shape, for example, as shown in FIGS. 6 and 8, the instrument mounting bracket B is attached to its horizontal clamping portion B2. In the case of fixing the recumbable E to the recumbent E, when the weight of the experimental instrument disposed at the tip of the experimental instrument support C supported by the instrument mounting bracket B is heavy, When the horizontal clamping part B2 of the instrument mounting bracket B is not sufficiently clamped and fixed to the recumbent E, the tip end surface of the clamping screw rod B12 of the instrument mounting bracket B is the recumbent E of the physics and chemistry frame. The instrument mounting bracket B is unexpectedly rotated and displaced downward about the recumbent E as the instrument mounting bracket B is rotated. The position of the experimental instrument arranged at the tip of the experimental instrument support C supported by the bracket B is Position and the relative position is changed labware between labware each other may be damaged, or chemicals there is a problem that spilling unexpected taking into the labware.
[0006]
Further, as shown in FIGS. 7 and 9, when the appliance mounting bracket B is clamped and fixed to the vertical rod D using the vertical clamping portion B1, it is supported by the appliance mounting bracket B. When the instrument mounting bracket B is inadequately held and fixed to the vertical rod D when it comes into contact with the experimental instrument support C unexpectedly, the clamping screw rod B12 of the instrument mounting bracket B is similar to the above. And the instrument mounting bracket B is unexpectedly rotated and displaced horizontally in the horizontal direction around the vertical rod D, and the tip surface of the frame is slid along the convex arcuate surface of the vertical rod D of the physics and chemistry frame. As the instrument mounting bracket B rotates, the position of the experimental instrument disposed at the tip of the experimental instrument support C supported by the instrument mounting bracket B is displaced, and the relative position between the experimental instruments changes. There was a problem that the experimental equipment was damaged.
[0007]
[Problems to be solved by the invention]
The present invention provides a physics and chemistry frame that can support a laboratory instrument stably via a laboratory instrument support attached to the instrument mounting bracket by supporting the instrument mounting bracket in a stable state.
[0008]
[Means for Solving the Problems]
For physics and chemistry frame of the present invention, clamping, for physics and chemistry frame formed by integrally connected by fixing by clamping bracket its intersection by combining in a lattice pattern and a vertical rod and Yoko杆a plurality of on bench a body, the vertical rod and Yoko杆is Yes formed in square rod of square cross section, in combination with these vertical rods and Yoko杆a manner in a grid pattern being directed that any dihedral angle portion on the front On the other hand, the above-mentioned clamping metal fitting is formed by integrating a vertical clamping part having a square-shaped clamping groove refracted at right angles and a horizontal clamping part back to back, and each of these vertical clamping part and horizontal clamping part. The vertical clamping part of the clamping metal fitting is provided with a screw rod which can be moved back and forth toward the groove bottom of the clamping groove, and the ridge corners facing the front face of the vertical hook are centered on each other at right angles to each other. In surface contact with the clamping groove In addition to being stopped, in a state where both sides of the ridge that are directed to the back surface of the recumbent center are connected to each other at right angles to the holding groove of the horizontal holding part in the holding metal fitting in a surface contact state, By pressing the tip of the screw rod against the ridge corner on the opposite side to the ridge corner facing the holding groove of the holding fixture in the vertical and horizontal hooks, the intersection of the vertical hook and the horizontal hook is held together. It is characterized by wearing and fixing .
[0009]
[Action]
In the physics and chemistry frame of the present invention, the vertical and horizontal rods constituting the frame are formed in the shape of a square bar. The holding part of the device mounting bracket is made to contact the flat surface connected to both sides of the ridge of the vertical or horizontal surface of the body in a surface contact state, and the holding part of the physics and chemistry frame is When sandwiched and fixed to a vertical or horizontal plane, the inclined surfaces on both sides of the clamping groove of the instrument mounting bracket and the flat surface of the vertical or horizontal plane of the physics and chemistry frame are firmly locked, and the instrument mounting bracket Can be reliably prevented from rotating unexpectedly around the vertical or horizontal axis of the physics and chemistry frame, and therefore the position of the experimental instrument may be unintentionally displaced or the experimental instrument may be damaged. Absent.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An example of the physics and chemistry frame of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the physics and chemistry frame 1 is composed of a plurality of vertical rods 11 and horizontal rods 12 made of square bar materials having a square cross section and a fixed length, and arbitrary ridge corner portions 111, 121. Are arranged in a lattice-like manner in a front-facing state, and holding metal fittings A are provided at the intersections of the vertical hooks 11 and the horizontal hooks 12 to connect the vertical hooks 11 and the horizontal hooks 12 to the holding metal fittings. It is configured by connecting and integrating through A. It should be noted that at least one of the vertical rods 11 and at least one of the horizontal rods 12 in the physics and chemistry frame 1 may be in the shape of a square bar.
[0011]
In addition, the holding metal fitting A includes a pair of holding portions A1 and A2 having a fixed length each having a square-shaped holding groove A11 and A21 refracted at right angles, and the holding groove A11 of the holding portions A1 and A2. The holding screw rods A12 and A22 which can be moved forward and backward with respect to A21, respectively, and the above-mentioned holding portions A1 and A2 having a square cross section have one holding portion A1 in the horizontal direction and the other holding portion A2 It is fixed integrally in the back alignment in the state toward the vertical direction.
[0012]
Standing pieces A31 and A32 project from one end of the sandwiching portions A1 and A2, and screw mounting pieces A41 and 42 face the sandwiching grooves A11 and A21 at the tips of the standing pieces A31 and A32. The clamping groove A11 is formed by inserting the clamping screw rods A12, A22 into the central screw holes A411, A421 of the screw mounting pieces A41, A42 and refracting the tip into a square shape. , Facing the groove bottom of A21.
[0013]
By holding and fixing the vertical rod 11 on one side of the holding metal fitting A thus configured, that is, the vertical holding portion A1, and the horizontal rod 12 on the other side, that is, the horizontal holding portion A2, the vertical rod is fixed. 11 and the horizontal bar 12 are combined and formed in a lattice shape.
[0014]
More specifically, the surfaces 112 and 112 of the vertical rod 11 that are connected at right angles to the inclined surfaces on both sides of the letter-shaped holding groove A11 in the vertical holding portion A1 of the holding metal fitting A are contacted and received in a surface contact manner. After being arranged in a state, the clamping screw rod A12 is screwed and brought into pressure contact with the ridge corner portion 111 facing the back surface of the vertical rod 11, whereby the inclined surfaces on both sides of the rectangular holding groove A11 and the clamping pin The vertical rod 11 is clamped by the screw rod A12, and the vertical rod 11 is stably fixed to the vertical clamping portion A1 of the clamping bracket A.
[0015]
Similarly, the surfaces 122, 122 that are connected at right angles to the horizontal flange 12 are brought into contact with and received by the inclined surfaces on both sides of the rectangular holding groove A 21 in the horizontal holding portion A 2 of the holding metal fitting A. Then, the clamping screw rod A22 is screwed and brought into pressure contact with the ridge corner portion 121 facing the front surface of the horizontal bar 12, so that the inclined surfaces on both sides of the rectangular holding groove A21 and the clamping The horizontal rod 12 is clamped by the screw rod A22, and the horizontal rod 12 is stably fixed to the horizontal clamping portion A2 of the clamping bracket A.
[0016]
On the test bench F, two support rods G and G are arranged in a state of standing in the vertical direction with a certain interval in the horizontal direction. By using A to sandwich and support both ends of the horizontal bar 12 in the vertical bar 11 and the horizontal bar 12 assembled in the form of a lattice by the holding metal A, the plural vertical bars 11 are supported. The frame 1 for physics and chemistry, which is formed by assembling the ridges 12 and the reeds 12 in a lattice shape, is disposed on the experimental table F in a stable state.
[0017]
Next, the usage point of the said physics and chemistry frame 1 is demonstrated. First, the instrument mounting bracket B is fixed to the vertical shaft 11 of the physics and chemistry frame 1, and the experimental instrument H is supported by the experimental instrument support C attached to the instrument mounting bracket B. The points to be arranged above will be described.
[0018]
The fixture mounting bracket B has the same structure as the clamping bracket A. Specifically, the fixture mounting bracket B has a pair of sandwiching portions B1 and B2 having a cross-sectional shape that is refracted substantially at right angles, and these clamping portions B1. , And B2 holding grooves B11 and B21, which can be moved forward and backward, respectively, and the above-mentioned holding sections B1 and B2 having a square cross section cross each other at 90 · in the direction of twisting oriented to and is connected to the back matching shape.
[0019]
Standing pieces B31 and B32 project from one end of the sandwiching portions B1 and B2, and screw mounting pieces B41 and B42 facing the sandwiching grooves B11 and B21 at the tips of the standing pieces B31 and B32, respectively. The clamping screw B11 is inserted into the central screw holes B411 and B421 of the screw mounting pieces B41 and B42 and the clamping screw B12 and B22 are inserted into the clamping groove B11. To B21.
[0020]
The experimental instrument support C is also the conventional experimental instrument support C. Specifically, for example, the support bar C1 made of a rod-shaped body having a circular cross section having a certain length and this support are used. It comprises an instrument clamping part C2 that clamps an experimental instrument H provided integrally at the tip of the rod C1.
[0021]
First, as shown in FIG. 1 and FIG. 3, the vertical attachment 11 is connected to the inclined surface on both sides of the vertical holding groove B11 in one holding part B1 facing in the vertical direction in the appliance mounting bracket B at right angles. After the surfaces 112 and 112 are disposed in a state of abutting and receiving in a surface contact state, the clamping screw rod B12 is screwed to press against the ridge corner 113 facing the side of the vertical rod 11 As a result, the vertical hook 11 is clamped by the square-shaped holding groove B11 and the holding screw rod B12, and the instrument mounting bracket B is stably attached to the desired position of the vertical hook 11.
[0022]
Then, the support rod C1 of the laboratory instrument support C is clamped and fixed to the other clamping part B2 of the instrument mounting bracket B facing in the horizontal direction, and the instrument clamp C2 is moved forward by the instrument clamp C2. A stable arrangement in the protruding state. The above procedure is repeated so that the instrument holding parts C2 and C2 of the two experimental instrument supports C and C project forward on the same vertical rod 11 with a predetermined interval in the vertical direction.
[0023]
Thereafter, for example, the condenser H1 is clamped and attached to the instrument clamping part C2 of the upper laboratory instrument support C, and for example, the round bottom flask H2 is clamped and attached to the instrument clamping part C2 of the lower laboratory instrument support C. The experimental apparatus is arranged on the experimental table F by inserting and fixing the lower end of the condenser H1 into the upper end opening of the round bottom flask H2.
[0024]
In this state, as shown in FIG. 3, one clamping part B1 of the instrument mounting bracket B and the vertical hook 11 of the physics and chemistry frame 1 are formed into a square-shaped clamping groove B11 of the vertical clamping part B1. Since both side inclined surfaces and the both sides flat surfaces 112, 112 connected to the ridges 114 of the vertical rod 11 are in a locked state, even if a hand or the like is in contact with the experimental instruments H1, H2, However, the instrument mounting bracket B does not rotate unexpectedly around the downarm 11, and the mounting state is reliably maintained, so that the experimental instrument support C attached to the instrument mounting bracket B is maintained. The experimental instrument sandwiched and supported by the instrument sandwiching part C2 reliably maintains its placement position, for example, the relative position between the condenser H1 and the round bottom flask H2 changes, and the condenser H1 and the round bottom At the connection with the flask H2, the round bottom flask H2 and the condenser Is not it, such as over H1 may be damaged in the unexpected.
[0025]
In addition, the appliance mounting bracket B is in contact with both outer peripheral planes 112 and 112 connected to the ridges 114 of the vertical rod 11 with the inclined surfaces on both sides of the letter-shaped holding groove B11 of the holding part B1 facing in the vertical direction. Since it is attached to the downspout 11 in the received state, the instrument mounting bracket B is automatically positioned at a predetermined angle with respect to the downspout 11 and is thus attached to the downspout 11. The other clamping part B2 of the appliance mounting bracket B is always oriented in a certain direction, and when a plurality of appliance mounting brackets B are attached to the vertical rod 11, the other of all the appliance mounting brackets B is attached. The holding parts B2 (holding parts to which the experimental instrument support is attached) are all directed in the same direction. Therefore, as shown in FIG. 1, even when a plurality of laboratory instruments H, H... Are arranged in the vertical direction, the vertical laboratory instruments H, H. It is possible to connect the experimental instruments H and H easily and reliably.
[0026]
Next, the instrument mounting bracket B is fixed to the horizontal frame 12 of the physics and chemistry frame 1, and the experimental instrument H is supported by the experimental instrument support C attached to the instrument mounting bracket B. The points to be arranged above will be described.
[0027]
First, as shown in FIG. 4 and FIG. 5, the instrument mounting bracket B is connected to the inclined surfaces on both sides of the square-shaped holding groove B11 in one holding part B1 facing in the horizontal direction at right angles in the horizontal bar 12. After the surfaces 122 and 122 are arranged in a state of abutting and receiving in a surface contact state, the clamping screw rod B12 is screwed and pressed against the ridge corner 123 facing the upper side of the horizontal bar 12 Thus, the instrument mounting bracket B is stably attached to the desired position of the recumbent rod 12 by sandwiching the recumbent reed 12 by the character-shaped sandwiching groove B11 and the retaining screw rod B12.
[0028]
Then, the support rod C1 of the laboratory instrument support C is clamped and fixed to the other clamping part B2 of the instrument mounting bracket B facing in the horizontal direction, and the instrument clamp C2 is moved forward by the instrument clamp C2. A stable arrangement in the protruding state. Thereafter, an experimental instrument H3, for example, a round bottom flask, is clamped and attached to the instrument clamping portion C2 of the upper experimental instrument support C, and the experimental apparatus is disposed on the experimental table F.
[0029]
In this state, as shown in FIG. 5, one clamping part B1 of the instrument mounting bracket B and the horizontal collar 12 of the physics and chemistry frame 1 are formed in the rectangular clamping groove B11 of the clamping part B1. Since the both side inclined surfaces and the both side flat surfaces 122, 122 connected to the ridge corner portion 124 of the horizontal bar 11 are in a locked state, the weight of the experimental instrument H3 is heavy or the experimental instrument H3 has a hand or the like. Even if they come into contact with each other, the fixture mounting bracket B does not rotate unexpectedly around the recumbent ridge 12, and the mounting state is reliably maintained. The experimental instrument H3 clamped and supported by the instrument clamping part C2 of the experimental instrument support C is reliably maintained in its position.
[0030]
【Effect of the invention】
For physics and chemistry frame according to claim 1 is formed by integrally connected by clamping to fix the intersection by clamping fitting by combining the vertical rod and Yoko杆a plurality of the grid pattern on the benchtop in for physics and chemistry frame, since the vertical rod and the Yoko杆is formed in square rod of square cross section, the device attachment bracket which is conventionally used both side inclined surfaces of the Ku-shaped holding grooves of the clamping portion By attaching to the downspout or the recumbent to match the flat surfaces on both sides of the downspout or any side of the recumbent ridge, the appliance mounting bracket is unexpectedly placed around the downspout or the recumbent Therefore, according to the above physics and chemistry frame, it is possible to perform an experiment with an experimental apparatus by arranging an experimental instrument accurately and reliably on the experimental table. .
[0031]
Furthermore, according to the physics and chemistry frame of the present invention , the above-mentioned vertical gutter and horizontal gutter are combined in a lattice shape with the arbitrary ridges thereof facing the front, while the above-mentioned holding fixture is refracted at a right angle. forward and backward toward the groove bottom of each of the holding grooves of these vertical clamping unit and a horizontal clamping unit with are integrated a vertical clamping unit and a horizontal clamping unit in the back alignment with the cross-sectional dogleg-shaped clamping groove it comprises a freely threaded rod, the receiving sided with continuous at right angles to each other and the dihedral angle portion which is towards the front in the Tate杆centrally surface contact in clamping groove of the vertical clamping portion of the clamping bracket together is, in the state of being catch both sides with continuous at right angles to each other with a dihedral angle portion which is towards the rear in the Yoko杆centrally surface contact in clamping groove of the horizontal clamping unit in the clamping bracket, the The tip of the screw rod By pressing respectively the dihedral angle portion opposite to the Kitate杆and dihedral angle portion facing the clamping groove of the clamping fitting in Yoko杆, clamped together the intersections of the Tate杆and Yoko杆are fixed Therefore, the vertical rod and the horizontal rod can be stably fixed to the vertical clamping portion and the horizontal clamping portion of the clamping bracket, respectively, and when the fixture mounting bracket is attached to the vertical fixture or the horizontal fixture, It can be arranged in a stable state in which the inclined surfaces on both sides of the clip-shaped sandwiching groove of the sandwiching portion are matched with the flat surfaces on both sides that are perpendicular to each other from an arbitrary ridge corner of the vertical hook or the horizontal hook. The appliance mounting bracket can be attached to the downside or downside in a stable state without accidentally rotating around the downside or downside of the downside.
[0032]
Moreover, according to the physics and chemistry frame, when the fixture mounting bracket is attached to the vertical or horizontal saddle using the one clamping portion, the other clamping portion of the fixture mounting bracket is reliably and automatically installed. Therefore, the experimental instrument support is protruded reliably and accurately in the fixed direction on the other holding portion of the instrument mounting bracket, and the experimental instrument is supported by the experimental instrument support. The experimental device can be assembled easily and reliably.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a usage state of a physical and chemical frame of the present invention.
FIG. 2 is an enlarged perspective view showing a connecting portion between a vertical gutter and a horizontal gutter of a physical and chemical frame.
FIG. 3 is a cross-sectional view showing a state in which an instrument mounting bracket is attached to a vertical shaft of a physical and chemical frame.
FIG. 4 is a perspective view showing a usage state of the physicochemical frame of the present invention.
FIG. 5 is a longitudinal sectional view showing a state in which an instrument mounting bracket is attached to the side of a physics and chemistry frame.
FIG. 6 is a perspective view showing a state in which an experimental instrument is disposed by attaching an instrument mounting bracket to a reed of a conventional physics and chemistry frame.
FIG. 7 is a perspective view showing a state in which an experimental instrument is arranged by attaching an instrument mounting bracket to a vertical shaft of a conventional physics and chemistry frame.
FIG. 8 is a longitudinal sectional view showing a state in which an instrument mounting bracket is attached to a horizontal frame of a conventional physics and chemistry frame.
FIG. 9 is a cross-sectional view showing a state in which an instrument mounting bracket is attached to a vertical gutter of a conventional physics and chemistry frame.
[Explanation of symbols]
1 Frame for physics and chemistry
11 downspout
111 ridge angle
112 Perimeter plane
12 Yokohama A
A1, A2 clamping part
A11, A21 Rectangular holding groove
A12, A22 Screw rod for clamping B Instrument mounting bracket
B1, B2 clamping part
B11, B21 Rectangular holding groove
B12, B22 Clamping screw rod C Laboratory tool support
C1 support rod
C2 Device clamping part

Claims

Held by clamping bracket its intersection by combining the vertical rod and Yoko杆a plurality of the grid pattern on the bench, a physicochemical a frame body formed by integrally connected by fixing, the vertical rod and The horizontal bar is formed in the shape of a square bar with a square cross section , and these vertical bar and horizontal bar are combined in a lattice shape with the arbitrary ridge corners facing the front. The vertical holding portion and the horizontal holding portion having a cross-shaped holding groove that is refracted into two are integrated back to back, and the vertical holding portion and the horizontal holding portion toward the groove bottoms of the respective holding grooves. It is provided with a screw rod that can be moved forward and backward, and receives both surfaces of the vertical ridge facing to the front face at the center with the ridge corner portion being perpendicular to each other in a state of surface contact with the holding groove of the vertical holding portion of the holding fixture. And stop In this state, both ends of the nip that are directed to the back surface at the center are connected to each other at right angles to the holding groove of the horizontal holding portion of the holding fixture in a surface contact state, and the tip of the screw rod is The crossing part of the vertical and horizontal planes is clamped and fixed as a unit by pressing each of the vertical and horizontal planes against the ridges on the side opposite to the ridges facing the clamping grooves of the clamping bracket. A frame for physics and chemistry characterized by