JP3944055B2

JP3944055B2 - Prop

Info

Publication number: JP3944055B2
Application number: JP2002323532A
Authority: JP
Inventors: 幸美真部
Original assignee: Sugatsune Kogyo Co Ltd
Current assignee: Sugatsune Kogyo Co Ltd
Priority date: 2002-11-07
Filing date: 2002-11-07
Publication date: 2007-07-11
Anticipated expiration: 2022-11-07
Also published as: JP2004156325A

Description

【０００１】
【発明の属する技術分野】
この発明は、例えば上端部にベルトリールパーティション、広告又は標識等が取り付けられる支柱に関する。
【０００２】
【従来の技術】
一般に、この種の支柱は、円板状をなす台座と、この台座の上面に立設固定された支柱本体とを有しており、台座にはこれを上下に貫通する貫通孔が形成されている。一方、支柱の下端面中央部には、下方に延びる雄ねじ部が設けられている。雄ねじ部は、貫通孔を下方に向かって貫通しており、台座から下方に突出した雄ねじ部の下端部にはナットが螺合されている。そして、このナットを締め付けることにより、支柱本体の下端面が台座の上面に押し付けられ、ひいては支柱本体が台座の上面に固定されている（例えば、特許文献１参照。）。
【０００３】
【特許文献１】
実開平７−１００１７号公報（図１）
【０００４】
【発明が解決しようとする課題】
上記従来の支柱においては、ナットが僅かでも緩むと支柱本体が台座に対して回動してしまうという問題があった。
【０００５】
【課題を解決するための手段】
この発明は、上記の問題を解決するためになされたもので、台座と、この台座の上面に立設固定された支柱本体とを備えた支柱において、上記台座にこれを上下に貫通する断面非円形の取付孔が形成され、上記支柱本体の下端部に上記取付孔の上部に回動不能に嵌合する嵌合部が形成され、この嵌合部の下側に押圧部材が回動可能に、かつ上下方向へ移動可能に設けられ、上記嵌合部と上記押圧部材との間に、上記押圧部材を上記台座の下面に押し付け、それによって上記支柱本体の下端面を上記台座の上面に押し付けて上記支柱本体を上記台座の上面に押圧固定する押圧固定手段が設けられ、上記押圧部材が、第１の位置に回動させられたときには上記取付孔に挿通可能で、第２の位置に回動させられたときには上記取付孔に挿通不能であり、上記押圧固定手段が上記第２の位置に位置している上記押圧部材を上記台座の下面に押し付けることを特徴としている。
この場合、上記押圧固定手段が、上記支柱本体の下端部に軸線を上下方向に向けて形成されたねじ孔と、上記押圧部材を回動可能に、かつ上下方向へ移動可能に貫通して上記ねじ孔にその下端部から螺合された雄ねじ部材とを有し、上記雄ねじ部材を上記ねじ孔に上方へ向かってねじ込むと、上記雄ねじ部材の頭部が上記押圧部材を上記台座の下面に押し付けるように構成することが望ましい。
上記ねじ孔から上方へ突出した上記雄ねじ部材の上端部には、上記ねじ孔を通り抜け不能であるストッパ部を設けることが望ましい。
上記押圧固定手段が、上記押圧部材を上記嵌合部に対して回動可能に、かつ上下方向へ移動可能に連結する連結軸と、上記押圧部材を上記連結軸を介して上方へ付勢して上記台座の下面に押し付ける付勢手段とを有していることが望ましい。
上記支柱本体の下端部には、上下方向に延びる挿通孔が形成され、上記連結軸が上記挿通孔に上下方向へ移動可能に挿通され、上記挿通孔から上方に突出した上記連結軸の上端部に上記挿通孔を通り抜け不能であるストッパ部が設けられていることが望ましい。
上記台座の下面には、上記押圧部材を上記第２の回動位置に回動不能に係止する係止部を設けることが望ましい。上記係止部は、上記押圧部材が回動不能に嵌合する係止凹部であることが望ましい。
【０００６】
【発明の実施の形態】
以下、この発明の実施の形態について図１〜図１１を参照して説明する。
図１〜図６は、この発明の第１実施の形態を示す。この実施の形態は、この発明をベルトリールパーティション用の支柱１に適用したものである。図１に示すように、支柱１は、台座２と、この台座２の上面に立設固定された支柱本体３とを備えている。支柱本体３の上端部にはベルトリール部Ｂが着脱可能に取り付けられている。支柱本体３には、ベルトリール部Ｂ以外のもの、例えば標識、広告等を取り付けてもよい。なお、ベルトリール部Ｂは、周知のものであるのでその説明は省略する。
【０００７】
台座２は、図１、図２及び図４に示すように、全体として円板状をなしており、鉄等の金属平板からなる円形の基板２１を有している。この基板２１の上面には、ステンレス鋼等の薄板からなる化粧板２２が固定されている。化粧板２２は基板２１より大径に形成されており、基板２１の外周から外側に突出した周縁部には、断面半円状をなす遮蔽部２２ａが全周にわたって形成されている。化粧板２２によって基板２１の外面が外部から目視されないように遮蔽され、それによって美感の向上が図られている。基板２１の下面の外周側には、硬質ゴム、その他の樹脂からなる複数の脚部２３が周方向に等間隔に配置され、それぞれボルト２４によって基板２１の下面に固定されている。
【０００８】
支柱本体３は、金属製の円筒状なしており、次のようにして台座２の上面（化粧板２２の上面）に着脱可能に立設固定されている。すなわち、図２〜図４に示すように、台座２の中央部には、基板２１及び化粧板２２を上下に貫通する取付孔２５が形成されている。この取付孔２５は、断面形状（上下方向から見たときの形状）が非円形をなすように形成されている。この実施の形態では、取付孔２５が断面長方形をなすように形成されているが、非円形であれば他の形状、例えば正方形、三角形、楕円形に形成してもよい。一方、支柱本体３の下端部内周面には、図３に示すように、支持板３１が溶接等によって固定されている。この支持板３１の下面中央部には、嵌合部３２が溶接等によって固定されている。この嵌合部３２は、下方から見たときの形状、寸法が取付孔２５の断面形状及び寸法とほぼ同一になっており、その下端部は支柱本体３の下端面から下方に突出している。そして、支柱本体３から下方に突出した嵌合部３２の下端部が取付孔２５に嵌合することにより、支柱本体３が台座２に対して回動不能に連結されている。なお、嵌合部３２の支柱本体３からの下方への突出量は、取付孔２５の長さより短くなっている。したがって、嵌合部３２は、支柱本体３の下端面が台座２の上面に突き当たった状態においても取付孔２５の上端部に嵌合するだけであり、取付孔２５から下方へ突出することはない。
【０００９】
支柱本体３は、押圧固定手段４によって台座２に着脱可能に固定されている。すなわち、嵌合部３２には、その上部に収容空間３２ａが形成されるとともに、その下部に収容空間３２ａを区画する下面３２ｂから嵌合部３２の下面まで延びるねじ孔３２ｃが形成されている。収容空間３２ａは、上下方向にみたときの寸法がねじ孔３２ｃより大きくなっており、収容空間３２ａの中央部にねじ孔３２ｃが開口している。収容空間３２ａの上端開口部は、支持板３１によって閉じられている。一方、ねじ孔３２ｃは、その軸線を支柱本体３の軸線と一致させて形成されている。
【００１０】
ねじ孔３２ｃには、雄ねじ部材５の脚部５１が螺合されている。脚部５１の上端部は、収容空間３２ａ内に突出しており、そこにはリング状をなすストッパリング（ストッパ部）５２が固定されている。ストッパリング５２は、ねじ孔３２ｃを通り抜け不能であり、嵌合部３２を支持板３１に固定する前に脚部５１の上端部に予め固定されている。ストッパリング５２が脚部５１の上端部に固定されることにより、脚部５１がねじ孔３２ｃから下方へ抜け出ることが阻止されている。
【００１１】
嵌合部３２の下面と雄ねじ部材５の頭部５３との間の脚部５１には、押圧板（押圧部材）６が回動可能に、かつ上下方向へ移動可能に外挿されている。押圧板６は、上下方向からみたときの形状、寸法が嵌合部３２と同一になっている。しかも、押圧板６は、その中央部が脚部５１によって貫通されている。したがって、押圧板６の長手方向を嵌合部３２の長手方向と同一方向に向けると、押圧板６と嵌合部３２とを上下方向に見たとき、両者の輪郭が一致する。このときの押圧板６の位置が第１の位置である。この第１の位置から９０°回動させたときの押圧板６の位置が第２の位置である。押圧板６が第２の位置に位置すると、押圧板６の長手方向の両端部が嵌合部３２の短手方向の両側部から突出し、取付孔２５の両側に位置する基板２１の下面と対向する。したがって、押圧板６を第２の位置に位置させた状態で雄ねじ部材５を一方向に回動させてその脚部５１をねじ孔３２ｃに上方へ向かってねじ込むと、押圧板６が雄ねじ部材５の頭部５３によって上方へ移動させられ、押圧板６の長手方向の両端部が取付孔２５の両側に位置する基板２１の下面に押し付けられる。押圧板６の押し付け反力によって、支柱本体３の下面が台座２の上面に押し付けられる。これにより、支柱本体３が台座２の上面に立設固定されている。なお、押圧板６が基板２１に押し付けられたとき、頭部５３の下端は、脚部２３の下端面より上方に位置している。また、押圧板６は、雄ねじ部材５の脚部５１をねじ孔３２ｃにねじ込む前に脚部５１に予め外挿されている。
【００１２】
支柱本体３を台座２に固定する場合には、図６に示すように、押圧板６を、その回動方向の位置に関しては第１の位置に位置させ、上下方向の位置に関しては支柱本体３の下端面と押圧板６の上面との間の距離Ｌが台座２の基板２１及び化粧板２２の合計厚さＴより大きくなるように予め位置させておく。そして、押圧板６（及び嵌合部３２）を取付孔２５に対して同一姿勢になるように位置合わせする。その後、支柱本体３を台座２に対して相対的に接近移動させ、押圧板６を取付孔２５に挿入する。支柱本体３の下端面が台座２の上面に突き当たるまで支柱本体３を台座２に対して接近移動させると、嵌合部３２の下端部が取付孔２５の上端部に嵌合する。これによって、支柱本体３が台座２に回動不能に連結される。しかも、支柱本体３の下端面が台座２の上面に突き当たった時には、押圧板６が距離（Ｌ−Ｔ）の分だけ取付孔２５から下方に突出している。したがって、押圧板６を第１の位置から第２の位置へ直ちに回動させることができる。押圧板６を第２の位置に回動させたら、雄ねじ部材５を一方向へ回動させることにより、押圧板６を基板２１の下面に押し付ける。この場合、雄ねじ部材５は、距離（Ｌ−Ｔ）に相当する分だけ回動させればよく、雄ねじ部材５の回動量を少なくすることができる。押圧板６を基板２１の下面に押し付けることにより、支柱本体３が台座２に立設固定される。
【００１３】
支柱本体３を台座２から取り外す場合には、雄ねじ部材５を他方向へ回動させて緩める。この場合、雄ねじ部材５は、押圧板６を回動させることができるようになるまで僅かに回動させるだけでよい。雄ねじ部材５を緩めたら、押圧板６を第２の位置から第１の位置まで回動させる。すると、押圧板６の姿勢が取付孔２５と一致するので、押圧板６が取付孔２５に挿通可能になる。そこで、支柱本体３を台座２から離間するように相対移動させ、嵌合部３２及び押圧板６を取付孔２５から順次抜き出す。これによって、支柱本体３を台座２から取り外すことができる。支柱本体３を台座２から取り外すことにより、それらを保管又は搬送する際には、支柱本体３を台座２に取り付けた状態で保管又は搬送する場合に比して、占有空間を小さくすることができる。しかも、雄ねじ部材５がストッパリング５２によってねじ孔３２ｃから抜け止めされているので、雄ねじ部材５及び押圧板６が支柱本体３から外れて紛失するような事態を未然に防止することができる。
【００１４】
上記構成の支柱１においては、嵌合部３２が取付孔２５に回動不能に嵌合しているので、雄ねじ部材５が若干緩んだとしても、支柱本体３が台座２に対して回動するのを確実に防止することができる。
【００１５】
次に、この発明の他の実施の形態について説明する。なお、以下の実施の形態においては、上記の実施の形態と異なる構成についてのみ説明することとし、同様な構成部分には同一符号を付してその説明を省略する。
【００１６】
図７及び図８は、この発明の第２実施の形態を示す。この実施の形態においては、基板２１の下面に、取付孔２５と直交する係止凹部２６が形成されている。この係止凹部２６は、下方から見た形状が押圧板６とほぼ同一の形状をなすように形成されている。しかも、係止凹部２６は、押圧板６を第２の位置に回動させると、係止凹部２６に嵌り込むことができるように配置されている。したがって、支柱本体３を台座２に固定する場合には、前述した実施の形態と同様にして、押圧板６を取付孔２５に挿通するとともに、嵌合部３２の下端部を取付孔２５の上端部に嵌合させた後、雄ねじ部材５をねじ孔３２ｃに上方へ向かってねじ込み、その頭部５３によって押圧板６を上方へ移動させる。すると、押圧板６が係止凹部２６に入り込む。雄ねじ部材５を距離（Ｌ−Ｔ）と係止凹部２６の深さとの合計長さの分だけねじ込むと、押圧板６が係止凹部２６の底面に突き当たる。この結果、支柱本体３の下端面が台座２の上面に押し付けられ、支柱本体３が台座２に立設固定される。
【００１７】
上記構成の第２の実施の形態においては、仮に雄ねじ部材５が若干緩んだとしても、押圧板６は、第１の位置への回動が係止凹部２６によって確実に阻止され、第２の位置に維持される。したがって、仮に雄ねじ部材５が緩んだとしても、押圧板６が取付孔２５から抜け出るのを確実に防止することができ、それによって支柱本体３が倒れるのを未然に防止することができる。
【００１８】
図９は、この発明の第３実施の形態を示す。この実施の形態においては、上記の実施の形態における押圧固定手段４に代えて押圧固定手段４′が用いられている。すなわち、嵌合部３２には、ねじ孔３２ｃに代えて、ねじが形成されていない単なる孔としての挿通孔３２ｄが形成されている。この挿通孔３２ｄには、雄ねじ部材５に代わる連結軸５′の軸部５４が上下方向へ移動可能に挿通されている。軸部５４の上端部には、軸部５４が挿通孔３２ｄから下方へ抜け出るのを阻止するためのストッパリング（ストッパ部）５５が固定されている。このストッパリング５５と収容空間３２ａを区画する下面３２ｂとの間には、連結軸５′をストッパリング５５を介して上方へ付勢するコイルばね（付勢手段）７が設けられている。挿通孔３２ｄから下方に突出した軸部５４には、押圧板６の中央部が外挿されている。押圧板６は、軸部５４に対して回動可能、かつ上下方向へ移動可能になっているが、軸部５４に固定してもよく、あるいは軸部５４と一体に形成してもよい。ただし、そのようにする場合には、押圧板６を嵌合部３２に対して回動可能にするために、軸部５４を挿通孔３２ｄに対して回動可能に嵌合する必要がある。軸部５４の下端部には、頭部５６が設けられている。この頭部５６が押圧板６の下面に突き当たることにより、押圧板６がコイルばね７により連結軸５′を介して上方へ付勢され、係止凹部２６の底面に押し付けられている。この結果、支柱本体３の下端面が台座２の上面に押し付けられ、支柱本体３が台座２に立設固定されている。
【００１９】
第３実施の形態において、支柱本体３を台座２から取り外す場合には、連結軸５′をコイルばね７の付勢力に抗して下方へ移動させる。この場合、頭部５６に形成された孔５６ａに引き下げ用の操作具（図示せず）の上端に形成されたフック部を引っ掛けることにより、連結軸５′を容易に下方へ移動させることができる。連結軸５′を下方へ移動させると、押圧板６が自重によって下方へ移動する。押圧板６が係止凹部２６から下方へ抜け出たら、押圧板６を第２の位置から第１の位置まで回動させる。次に、連結軸５′をコイルばね７によって上方へ移動させる。連結軸５′は、その頭部５６が嵌合部３２の下面に突き当たるまで上方へ移動する。その後、支柱本体３を上方へ移動させて嵌合部３２及び押圧板６を取付孔２５から抜き出すことにより、支柱本体３を台座２から取り外すことができる。
【００２０】
支柱本体３を台座２に取り付ける場合には、押圧板６を第１の位置に回動させ、コイルばね７の付勢力によって嵌合部３２の下面に押圧接触させておく。そして、押圧板６及び嵌合部３２を取付孔２５にその上端開口部から順次挿入する。支柱本体３の下端面が台座２の上面に突き当たったら、操作具のフック部を孔５６ａに引っ掛けてを操作具を引き下げることにより、連結軸５′をコイルばね７の付勢力に抗して引き下げる。すると、連結軸５′の引き下げに伴って押圧板６がその自重によって下方へ移動する。押圧板６が基板２１の下面より下側まで移動したら、押圧板６を第２の位置に回動させ、係止凹部２６と対向させる。その後、連結軸５をコイルばね７によって上方へ移動させ、押圧板６を係止凹部２６の底面に突き当てる。その結果、支柱本体３の下端面がコイルばね７の付勢力によって台座２の上面に突き当てられ、支柱本体３が台座２に固定される。
【００２１】
図１０は、この発明の第４実施の形態を示す。この実施の形態においては、雄ねじ部材５の頭部５３と押圧板６との間にスプリング座金等の雄ねじ部材５の軸線方向に弾性を有する弾性部材８が設けられている。これにより、雄ねじ部材５が緩むことが防止されている。頭部５３と押圧部材６との間に弾性部材８を設ける点は、第１、第２実施の形態にも適用するのが望ましい。
【００２２】
図１１は、この発明の第５実施の形態を示す。この実施の形態においては、嵌合部３２にねじ孔３２ｃに代えて挿通孔３２ｄが形成されている。この挿通孔３２ｄには、雄ねじ部材５の脚部５１が下方から上方へ向かって貫通している。しかも、脚部５１は、支持板３１の中央部に軸線を上下方向に向けて形成されたねじ孔３１ａに螺合され、さらにねじ孔３１ａを貫通して上方へ突出している。ねじ孔３１ａから上方に突出した脚部５１の上端部にはねじ孔３１ａを通り抜け不能であるストッパリング５２が設けられている。
【００２３】
なお、この発明は、上記の実施の形態に限定されるものでなく、適宜変更可能である。
例えば、上記の実施の形態においては、押圧板６の上下方向から見たときの形状を嵌合部３２の形状と同一にしているが、押圧板６を第１の位置に回動させたときには、嵌合部３２を、支柱本体３を回動させることなく押圧板６に続いて取付孔２５に挿入することができ、かつ嵌合部３２が取付孔２５に嵌合した状態において押圧板６を第２の位置に回動させたときには押圧板６が取付孔２５に対して挿通不能になるように構成する限り、押圧板６の上下方向に見たときの形状を嵌合部３２と異なる形状にしてもよい。
【００２４】
【発明の効果】
以上説明したように、この発明によれば、支柱本体が台座に対して回動してしまうような事態を確実に防止することができるという効果が得られる。
【図面の簡単な説明】
【図１】この発明の第１実施の形態を示す斜視図である。
【図２】同実施の形態の底面図である。
【図３】図２のＸ−Ｘ線に沿う拡大断面図である。
【図４】同実施の形態の台座を示す図２のＹ−Ｙ線に沿う断面図である。
【図５】同実施の形態の支柱本体の下端部を示す斜視図である。
【図６】支柱及び台座を取り付ける前の状態で示す一部省略断面図である。
【図７】この発明の第２実施の形態を示す図３と同様の断面図である。
【図８】図７のＸ−Ｘ線に沿う断面図である。
【図９】この発明の第３実施の形態を示す図３と同様の断面図である。
【図１０】この発明の第４実施の形態を示す図３と同様の断面図である。
【図１１】この発明の第５実施の形態を示す図３と同様の断面図である。
【符号の説明】
１支柱
２台座
３支柱本体
４押圧固定手段
４′ 押圧固定手段
５雄ねじ部材
５′ 連結軸
６押圧板（押圧部材）
７コイルばね（付勢手段）
２５取付孔
２６係止凹部（係止部）
３１ａねじ孔
３２嵌合部
３２ｃねじ孔
３２ｄ挿通孔
５２ストッパリング（ストッパ部）
５５ストッパリング（ストッパ部）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a post to which, for example, a belt reel partition, an advertisement, a sign, or the like is attached at an upper end portion.
[0002]
[Prior art]
In general, this type of support has a disk-shaped pedestal and a support body fixed upright on the upper surface of the pedestal, and the pedestal is formed with a through-hole penetrating vertically. Yes. On the other hand, a male screw portion extending downward is provided at the center of the lower end surface of the support column. The male screw portion penetrates the through hole downward, and a nut is screwed to a lower end portion of the male screw portion protruding downward from the base. By tightening the nut, the lower end surface of the column main body is pressed against the upper surface of the pedestal, and the column main body is fixed to the upper surface of the pedestal (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 7-10017 (FIG. 1)
[0004]
[Problems to be solved by the invention]
In the above-mentioned conventional support, there is a problem that if the nut is slightly loosened, the support main body rotates with respect to the base.
[0005]
[Means for Solving the Problems]
The present invention has been made to solve the above-described problem, and is a column provided with a pedestal and a column main body standing and fixed on the upper surface of the pedestal. A circular mounting hole is formed, and a fitting portion that is non-rotatably fitted to the upper portion of the mounting hole is formed at the lower end portion of the column main body, and the pressing member is rotatable below the fitting portion. , And movably provided in the vertical direction, the pressing member is pressed against the lower surface of the pedestal between the fitting portion and the pressing member, thereby pressing the lower end surface of the column main body against the upper surface of the pedestal And a pressing fixing means for pressing and fixing the column main body to the upper surface of the pedestal. When the pressing member is rotated to the first position, the pressing member can be inserted into the mounting hole and rotated to the second position. When it is moved, it cannot be inserted into the mounting hole. , The pressing member the pressing fixing means is positioned in said second position is characterized by pressing the lower surface of the pedestal.
In this case, the pressing fixing means penetrates the screw hole formed in the lower end portion of the column main body with the axis line directed in the vertical direction and the pressing member so as to be rotatable and movable in the vertical direction. A male screw member screwed into the screw hole from its lower end, and when the male screw member is screwed upward into the screw hole, the head of the male screw member presses the pressing member against the lower surface of the pedestal It is desirable to configure as follows.
It is desirable to provide a stopper portion that cannot pass through the screw hole at the upper end portion of the male screw member protruding upward from the screw hole.
The pressing fixing means urges the pressing member upward via the connecting shaft, and a connecting shaft that connects the pressing member to the fitting portion so as to be rotatable and movable in the vertical direction. It is desirable to have urging means that presses against the lower surface of the pedestal.
An insertion hole extending in the vertical direction is formed in the lower end portion of the column main body, the connection shaft is inserted into the insertion hole so as to be movable in the vertical direction, and the upper end portion of the connection shaft protrudes upward from the insertion hole. It is desirable that a stopper portion that cannot pass through the insertion hole is provided.
It is desirable to provide a locking portion for locking the pressing member at the second rotation position so as not to rotate on the lower surface of the pedestal. The locking portion is preferably a locking recess into which the pressing member is fitted so as not to rotate.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
1 to 6 show a first embodiment of the present invention. In this embodiment, the present invention is applied to a support 1 for a belt reel partition. As shown in FIG. 1, the support column 1 includes a pedestal 2 and a support column body 3 that is erected and fixed on the upper surface of the pedestal 2. A belt reel portion B is detachably attached to the upper end portion of the column body 3. A thing other than the belt reel part B, for example, a sign, an advertisement, or the like, may be attached to the support body 3. The belt reel portion B is well known and will not be described.
[0007]
As shown in FIGS. 1, 2, and 4, the base 2 has a disk shape as a whole, and includes a circular substrate 21 made of a metal flat plate such as iron. A decorative plate 22 made of a thin plate such as stainless steel is fixed to the upper surface of the substrate 21. The decorative plate 22 is formed to have a larger diameter than the substrate 21, and a shielding portion 22 a having a semicircular cross section is formed on the entire periphery of the peripheral portion protruding outward from the outer periphery of the substrate 21. The outer surface of the substrate 21 is shielded by the decorative plate 22 so as not to be seen from the outside, thereby improving aesthetics. On the outer peripheral side of the lower surface of the substrate 21, a plurality of leg portions 23 made of hard rubber or other resin are arranged at equal intervals in the circumferential direction, and are respectively fixed to the lower surface of the substrate 21 by bolts 24.
[0008]
The column main body 3 has a cylindrical shape made of metal, and is detachably erected and fixed to the upper surface of the base 2 (the upper surface of the decorative plate 22) as follows. That is, as shown in FIGS. 2 to 4, a mounting hole 25 that penetrates the substrate 21 and the decorative plate 22 up and down is formed in the center of the base 2. The mounting hole 25 is formed so that a cross-sectional shape (a shape when viewed from above and below) is non-circular. In this embodiment, the mounting hole 25 is formed to have a rectangular cross section, but may be formed in other shapes, for example, a square, a triangle, or an ellipse, as long as it is non-circular. On the other hand, a support plate 31 is fixed to the inner peripheral surface of the lower end portion of the column body 3 by welding or the like, as shown in FIG. A fitting portion 32 is fixed to the center portion of the lower surface of the support plate 31 by welding or the like. The fitting portion 32 has a shape and size as viewed from below substantially the same as the cross-sectional shape and size of the mounting hole 25, and its lower end portion projects downward from the lower end surface of the column body 3. And the support | pillar main body 3 is connected with the base 2 so that rotation is impossible, when the lower end part of the fitting part 32 which protruded below from the support | pillar main body 3 fits in the attachment hole 25. FIG. Note that the amount of protrusion of the fitting portion 32 downward from the column main body 3 is shorter than the length of the mounting hole 25. Therefore, the fitting portion 32 only fits into the upper end portion of the mounting hole 25 even when the lower end surface of the column main body 3 hits the upper surface of the base 2, and does not protrude downward from the mounting hole 25. .
[0009]
The column main body 3 is detachably fixed to the pedestal 2 by a pressing and fixing means 4. That is, the fitting portion 32 is formed with an accommodation space 32 a in the upper portion thereof, and a lower portion thereof is formed with a screw hole 32 c extending from the lower surface 32 b that defines the accommodation space 32 a to the lower surface of the fitting portion 32. The storage space 32a is larger in size when viewed in the vertical direction than the screw hole 32c, and the screw hole 32c is opened at the center of the storage space 32a. The upper end opening of the accommodation space 32 a is closed by the support plate 31. On the other hand, the screw hole 32 c is formed such that its axis coincides with the axis of the column main body 3.
[0010]
The leg portion 51 of the male screw member 5 is screwed into the screw hole 32c. An upper end portion of the leg portion 51 protrudes into the accommodation space 32a, and a stopper ring (stopper portion) 52 having a ring shape is fixed thereto. The stopper ring 52 cannot pass through the screw hole 32 c and is fixed in advance to the upper end portion of the leg portion 51 before the fitting portion 32 is fixed to the support plate 31. Since the stopper ring 52 is fixed to the upper end portion of the leg portion 51, the leg portion 51 is prevented from falling downward from the screw hole 32c.
[0011]
A pressing plate (pressing member) 6 is extrapolated on the leg 51 between the lower surface of the fitting portion 32 and the head 53 of the male screw member 5 so as to be rotatable and movable in the vertical direction. The pressing plate 6 has the same shape and dimensions as the fitting portion 32 when viewed from the vertical direction. In addition, the center portion of the pressing plate 6 is penetrated by the leg portion 51. Accordingly, when the longitudinal direction of the pressing plate 6 is directed in the same direction as the longitudinal direction of the fitting portion 32, the contours of the pressing plate 6 and the fitting portion 32 coincide when viewed in the vertical direction. The position of the pressing plate 6 at this time is the first position. The position of the pressing plate 6 when rotated 90 ° from the first position is the second position. When the pressing plate 6 is positioned at the second position, both end portions in the longitudinal direction of the pressing plate 6 protrude from both side portions in the short direction of the fitting portion 32 and face the lower surface of the substrate 21 positioned on both sides of the mounting hole 25. To do. Accordingly, when the male screw member 5 is rotated in one direction with the pressing plate 6 positioned at the second position and the leg portion 51 is screwed upward into the screw hole 32c, the pressing plate 6 becomes the male screw member 5. The both ends of the pressing plate 6 in the longitudinal direction are pressed against the lower surface of the substrate 21 positioned on both sides of the mounting hole 25. The lower surface of the column body 3 is pressed against the upper surface of the pedestal 2 by the pressing reaction force of the pressing plate 6. Thereby, the column body 3 is erected and fixed on the upper surface of the base 2. When the pressing plate 6 is pressed against the substrate 21, the lower end of the head 53 is located above the lower end surface of the leg portion 23. Further, the pressing plate 6 is preliminarily inserted into the leg portion 51 before the leg portion 51 of the male screw member 5 is screwed into the screw hole 32c.
[0012]
When the column body 3 is fixed to the pedestal 2, as shown in FIG. 6, the pressing plate 6 is positioned at the first position with respect to the position in the rotational direction and the column body 3 with respect to the position in the vertical direction. The distance L between the lower end surface and the upper surface of the pressing plate 6 is set in advance so as to be larger than the total thickness T of the substrate 21 and the decorative plate 22 of the base 2. Then, the pressing plate 6 (and the fitting portion 32) is aligned with the mounting hole 25 in the same posture. Thereafter, the column main body 3 is moved relatively close to the base 2, and the pressing plate 6 is inserted into the mounting hole 25. When the column main body 3 is moved closer to the pedestal 2 until the lower end surface of the column main body 3 hits the upper surface of the pedestal 2, the lower end portion of the fitting portion 32 is fitted to the upper end portion of the mounting hole 25. As a result, the column main body 3 is connected to the base 2 so as not to rotate. Moreover, when the lower end surface of the column main body 3 hits the upper surface of the pedestal 2, the pressing plate 6 protrudes downward from the mounting hole 25 by the distance (LT). Therefore, the pressing plate 6 can be immediately rotated from the first position to the second position. When the pressing plate 6 is rotated to the second position, the pressing plate 6 is pressed against the lower surface of the substrate 21 by rotating the male screw member 5 in one direction. In this case, the male screw member 5 may be rotated by an amount corresponding to the distance (LT), and the amount of rotation of the male screw member 5 can be reduced. By pressing the pressing plate 6 against the lower surface of the substrate 21, the column main body 3 is erected and fixed to the base 2.
[0013]
When removing the column main body 3 from the base 2, the male screw member 5 is rotated in the other direction and loosened. In this case, the male screw member 5 only needs to be slightly rotated until the pressing plate 6 can be rotated. When the male screw member 5 is loosened, the pressing plate 6 is rotated from the second position to the first position. Then, since the posture of the pressing plate 6 matches the mounting hole 25, the pressing plate 6 can be inserted into the mounting hole 25. Therefore, the column main body 3 is relatively moved so as to be separated from the base 2, and the fitting portion 32 and the pressing plate 6 are sequentially extracted from the mounting hole 25. Thereby, the column main body 3 can be removed from the base 2. By removing the column main body 3 from the pedestal 2, when storing or conveying them, the occupied space can be reduced as compared with the case of storing or conveying the column main body 3 attached to the pedestal 2. . Moreover, since the male screw member 5 is prevented from coming off from the screw hole 32c by the stopper ring 52, it is possible to prevent a situation in which the male screw member 5 and the pressing plate 6 are detached from the column main body 3 and lost.
[0014]
In the strut 1 having the above-described configuration, since the fitting portion 32 is non-rotatably fitted in the mounting hole 25, the strut body 3 rotates with respect to the base 2 even if the male screw member 5 is slightly loosened. Can be surely prevented.
[0015]
Next, another embodiment of the present invention will be described. In the following embodiment, only the configuration different from the above-described embodiment will be described, and the same components are denoted by the same reference numerals and the description thereof will be omitted.
[0016]
7 and 8 show a second embodiment of the present invention. In this embodiment, a locking recess 26 orthogonal to the mounting hole 25 is formed on the lower surface of the substrate 21. The locking recess 26 is formed so that the shape seen from below is substantially the same as that of the pressing plate 6. Moreover, the locking recess 26 is arranged so that it can be fitted into the locking recess 26 when the pressing plate 6 is rotated to the second position. Therefore, when the column body 3 is fixed to the base 2, the pressing plate 6 is inserted into the mounting hole 25 and the lower end portion of the fitting portion 32 is connected to the upper end of the mounting hole 25 in the same manner as the above-described embodiment. After the fitting, the male screw member 5 is screwed upward into the screw hole 32c, and the pressing plate 6 is moved upward by the head 53 thereof. Then, the pressing plate 6 enters the locking recess 26. When the male screw member 5 is screwed in by the total length of the distance (LT) and the depth of the locking recess 26, the pressing plate 6 abuts against the bottom surface of the locking recess 26. As a result, the lower end surface of the column main body 3 is pressed against the upper surface of the base 2, and the column main body 3 is erected and fixed to the base 2.
[0017]
In the second embodiment having the above-described configuration, even if the male screw member 5 is slightly loosened, the pressing plate 6 is reliably prevented from rotating to the first position by the locking recess 26, and the second Maintained in position. Therefore, even if the male screw member 5 is loosened, it is possible to reliably prevent the pressing plate 6 from coming out of the mounting hole 25, thereby preventing the column main body 3 from falling down.
[0018]
FIG. 9 shows a third embodiment of the present invention. In this embodiment, a pressure fixing means 4 ′ is used instead of the pressure fixing means 4 in the above embodiment. That is, the fitting portion 32 is formed with an insertion hole 32d as a simple hole in which a screw is not formed, instead of the screw hole 32c. A shaft portion 54 of a connecting shaft 5 ′ instead of the male screw member 5 is inserted into the insertion hole 32d so as to be movable in the vertical direction. A stopper ring (stopper portion) 55 is fixed to the upper end portion of the shaft portion 54 to prevent the shaft portion 54 from coming out downward from the insertion hole 32d. Between the stopper ring 55 and the lower surface 32b that defines the accommodating space 32a, a coil spring (biasing means) 7 that biases the connecting shaft 5 'upward through the stopper ring 55 is provided. The central portion of the pressing plate 6 is externally inserted into the shaft portion 54 that protrudes downward from the insertion hole 32d. The pressing plate 6 is rotatable with respect to the shaft portion 54 and movable in the vertical direction, but may be fixed to the shaft portion 54 or formed integrally with the shaft portion 54. However, when doing so, in order to make the pressing plate 6 rotatable with respect to the fitting portion 32, it is necessary to fit the shaft portion 54 so as to be rotatable with respect to the insertion hole 32d. A head portion 56 is provided at the lower end portion of the shaft portion 54. When the head 56 abuts against the lower surface of the pressing plate 6, the pressing plate 6 is urged upward by the coil spring 7 via the connecting shaft 5 ′ and pressed against the bottom surface of the locking recess 26. As a result, the lower end surface of the column main body 3 is pressed against the upper surface of the base 2, and the column main body 3 is erected and fixed to the base 2.
[0019]
In the third embodiment, when removing the column main body 3 from the base 2, the connecting shaft 5 ′ is moved downward against the urging force of the coil spring 7. In this case, the connecting shaft 5 ′ can be easily moved downward by hooking a hook portion formed at the upper end of a lowering operation tool (not shown) into the hole 56 a formed in the head portion 56. . When the connecting shaft 5 'is moved downward, the pressing plate 6 moves downward due to its own weight. When the pressing plate 6 comes out of the locking recess 26 downward, the pressing plate 6 is rotated from the second position to the first position. Next, the connecting shaft 5 ′ is moved upward by the coil spring 7. The connecting shaft 5 ′ moves upward until the head portion 56 abuts against the lower surface of the fitting portion 32. Thereafter, the column main body 3 can be detached from the base 2 by moving the column main body 3 upward and extracting the fitting portion 32 and the pressing plate 6 from the mounting hole 25.
[0020]
When attaching the column main body 3 to the pedestal 2, the pressing plate 6 is rotated to the first position and pressed against the lower surface of the fitting portion 32 by the biasing force of the coil spring 7. Then, the pressing plate 6 and the fitting portion 32 are sequentially inserted into the mounting hole 25 from the upper end opening. When the lower end surface of the column main body 3 hits the upper surface of the base 2, the connecting shaft 5 ′ is pulled down against the urging force of the coil spring 7 by hooking the hook portion of the operating tool into the hole 56 a and pulling down the operating tool. . Then, the pressing plate 6 moves downward by its own weight as the connecting shaft 5 'is pulled down. When the pressing plate 6 moves from the lower surface of the substrate 21 to the lower side, the pressing plate 6 is rotated to the second position so as to face the locking recess 26. Thereafter, the connecting shaft 5 is moved upward by the coil spring 7 and the pressing plate 6 is abutted against the bottom surface of the locking recess 26. As a result, the lower end surface of the column main body 3 is abutted against the upper surface of the base 2 by the biasing force of the coil spring 7, and the column main body 3 is fixed to the base 2.
[0021]
FIG. 10 shows a fourth embodiment of the present invention. In this embodiment, an elastic member 8 having elasticity in the axial direction of the male screw member 5 such as a spring washer is provided between the head 53 of the male screw member 5 and the pressing plate 6. Thereby, the male screw member 5 is prevented from loosening. The point that the elastic member 8 is provided between the head 53 and the pressing member 6 is preferably applied to the first and second embodiments.
[0022]
FIG. 11 shows a fifth embodiment of the present invention. In this embodiment, an insertion hole 32d is formed in the fitting portion 32 in place of the screw hole 32c. The leg portion 51 of the male screw member 5 passes through the insertion hole 32d from below to above. Moreover, the leg portion 51 is screwed into a screw hole 31a formed in the center portion of the support plate 31 with the axis line directed in the vertical direction, and further protrudes upward through the screw hole 31a. A stopper ring 52 that cannot pass through the screw hole 31a is provided at the upper end of the leg 51 protruding upward from the screw hole 31a.
[0023]
In addition, this invention is not limited to said embodiment, It can change suitably.
For example, in the above-described embodiment, the shape of the pressing plate 6 when viewed from above and below is the same as the shape of the fitting portion 32. However, when the pressing plate 6 is rotated to the first position. The fitting portion 32 can be inserted into the mounting hole 25 subsequent to the pressing plate 6 without rotating the column body 3, and the pressing plate 6 is fitted in the fitting portion 32 in the mounting hole 25. As long as the pressing plate 6 is configured so that the pressing plate 6 cannot be inserted into the mounting hole 25 when it is rotated to the second position, the shape of the pressing plate 6 when viewed in the vertical direction is different from the fitting portion 32. You may make it a shape.
[0024]
【The invention's effect】
As described above, according to the present invention, it is possible to reliably prevent a situation in which the column main body rotates with respect to the pedestal.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment of the present invention.
FIG. 2 is a bottom view of the same embodiment.
FIG. 3 is an enlarged cross-sectional view taken along line XX of FIG.
4 is a cross-sectional view taken along line YY of FIG. 2 showing the pedestal of the same embodiment;
FIG. 5 is a perspective view showing a lower end portion of the column main body according to the embodiment.
FIG. 6 is a partially omitted cross-sectional view showing a state before attaching a column and a pedestal.
FIG. 7 is a cross-sectional view similar to FIG. 3, showing a second embodiment of the present invention.
8 is a cross-sectional view taken along line XX in FIG.
FIG. 9 is a cross-sectional view similar to FIG. 3, showing a third embodiment of the present invention.
FIG. 10 is a sectional view similar to FIG. 3, showing a fourth embodiment of the invention.
FIG. 11 is a cross-sectional view similar to FIG. 3, showing a fifth embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 support | pillar 2 base 3 support | pillar main body 4 press fixing means 4 'press fixing means 5 male screw member 5' connecting shaft 6 pressing plate (pressing member)
7 Coil spring (biasing means)
25 Mounting hole 26 Locking recess (locking part)
31a Screw hole 32 Fitting part 32c Screw hole 32d Insertion hole 52 Stopper ring (stopper part)
55 Stopper ring (stopper part)

Claims

In a support provided with a pedestal and a support body fixed upright on the upper surface of the pedestal,
A mounting hole having a non-circular cross section is formed in the pedestal so as to vertically penetrate the pedestal, and a fitting portion is formed on the lower end portion of the support column body so as to be non-rotatably fitted to the upper portion of the mounting hole. A pressing member is provided on the lower side so as to be rotatable and movable in the vertical direction, and the pressing member is pressed against the lower surface of the pedestal between the fitting portion and the pressing member, thereby Press fixing means for pressing and fixing the lower end surface of the main body against the upper surface of the pedestal to press and fix the column main body to the upper surface of the pedestal is provided, and when the pressing member is rotated to the first position, the mounting hole Can be inserted through and cannot be inserted into the mounting hole when rotated to the second position, and the pressing means presses the pressing member positioned at the second position against the lower surface of the pedestal , The pressing member is disposed on the bottom surface of the pedestal. Struts, wherein a locking recess for non-rotatably fitted in the rotational position is provided.

The pressing and fixing means penetrates the screw hole formed in the lower end portion of the column main body with the axis line directed in the vertical direction and the pressing member so as to be rotatable and movable in the vertical direction. A male screw member screwed from the lower end thereof, and when the male screw member is screwed upward into the screw hole, the head of the male screw member presses the pressing member against the lower surface of the pedestal. The support column according to claim 1.

The support column according to claim 2, wherein a stopper portion that cannot pass through the screw hole is provided at an upper end portion of the male screw member that protrudes upward from the screw hole.

The pressing fixing means urges the pressing member upward via the connecting shaft, and a connecting shaft that connects the pressing member to the fitting portion so as to be rotatable and movable in the vertical direction. The supporting column according to claim 1, further comprising urging means that presses against a lower surface of the pedestal.

An insertion hole extending in the vertical direction is formed in the lower end portion of the column main body, the connection shaft is inserted into the insertion hole so as to be movable in the vertical direction, and the upper end portion of the connection shaft protrudes upward from the insertion hole. The support column according to claim 4, further comprising a stopper portion that cannot pass through the insertion hole.

In a support provided with a pedestal and a support body fixed upright on the upper surface of the pedestal,
A mounting hole having a non-circular cross section is formed in the pedestal so as to vertically penetrate the pedestal, and a fitting portion is formed on the lower end portion of the support column body so as to be non-rotatably fitted to the upper portion of the mounting hole. A pressing member is provided on the lower side so as to be rotatable and movable in the vertical direction, and the pressing member is pressed against the lower surface of the pedestal between the fitting portion and the pressing member, thereby Press fixing means for pressing and fixing the lower end surface of the main body against the upper surface of the pedestal to press and fix the column main body to the upper surface of the pedestal is provided, and when the pressing member is rotated to the first position, the mounting hole Can be inserted through and cannot be inserted into the mounting hole when rotated to the second position, and the pressing means presses the pressing member positioned at the second position against the lower surface of the pedestal, The pressing and fixing means connects the pressing member to the above. A connecting shaft that is pivotably connected to the joint and is movable in the vertical direction; and biasing means that biases the pressing member upward through the connecting shaft and presses the pressing member against the lower surface of the base. A strut characterized by having .

An insertion hole extending in the vertical direction is formed in the lower end portion of the column main body, the connection shaft is inserted into the insertion hole so as to be movable in the vertical direction, and the upper end portion of the connection shaft protrudes upward from the insertion hole. The support according to claim 6 , further comprising a stopper portion that cannot pass through the insertion hole .