JP4106296B2

JP4106296B2 - Storage shelf equipment

Info

Publication number: JP4106296B2
Application number: JP2003074056A
Authority: JP
Inventors: 喜信茶円; 孝廣岡
Original assignee: 山九株式会社
Priority date: 2003-03-18
Filing date: 2003-03-18
Publication date: 2008-06-25
Anticipated expiration: 2023-03-18
Also published as: JP2004277152A

Description

【０００１】
【発明の属する技術分野】
本発明は、鋼管、形鋼、棒鋼等（以下、単に製品という）が載置される一対の棚部材が水平方向に開閉（出入り）して、製品の収納、取り出しを行う収納棚装置に関する。
【０００２】
【従来の技術】
従来、鋼管、棒鋼等の長尺材の製品を収納したり、取出したりするために、所定の水平間隔で設けられた対となる支持柱の一方の支持柱には、複数段上下方向に配置された棚部材が垂直方向又は水平方向に回動可能に設けられ、他方の支持柱には、棚部材の先端部を支持する受け部が複数段上下方向に設けられた収納棚装置が使用されている。この収納棚装置においては、複数の製品を複数回に分けて複数段の棚部材に載せることができ、特に、棚部材が水平方向に回動する場合には、棚部材の上下方向の取付けピッチを小さくでき、収納効率を高くすることができる。なお、棚部材は、エアシリンダー等を備えた開閉手段を介して水平回動するようになっている（例えば、特許文献１参照）。
【０００３】
【特許文献１】
特開平８−２９０８１０号公報
【０００４】
【発明が解決しようとする課題】
しかしながら、前記従来の収納棚装置においては、未だ解決すべき以下のような問題があった。
製品が載置されていない無負荷の棚部材を水平回動して開閉する時、棚部材の先端部と接触する受け部との摩擦係数が大きく、このため、エアシリンダー等の出力（動力）を大きくする必要があり、狭いスペースに、このエアシリンダーを収めることが困難であり、収めるためには収納効率が小さくなるという問題があった。
また、棚部材と受け部との摩擦係数を小さくするために、例えば、棚部材の先端部又は受け部に車輪等の摩擦力低減機構を設けた場合には、棚部材上に製品を載置した際の安定性がよくなかった。
【０００５】
本発明はこのような事情に鑑みてなされたもので、容量が小さくコンパクトな開閉手段を使用でき、しかも、製品を載置した場合にも安定性が良好な収納棚装置を提供することを目的とする。
【０００６】
【課題を解決するための手段】
前記目的に沿う本発明に係る収納棚装置は、上下方向に間隔を開けて複数段に配置され、水平方向に開閉する一対の棚部材の基部がそれぞれ回動自在に取付けられた対となる前後の棚部材支持柱と、棚部材支持柱と対となって、一対の棚部材の先端部が当接する受け部を備えた前後の棚部材受け柱とを有し、複数段の一対の棚部材上に製品を載置して収納する収納棚装置であって、
一対の棚部材はそれぞれ、開閉手段に連結され棚部材支持柱に垂直に設けられた垂直ピン回りに水平方向に回動する水平回動部と、水平回動部に水平に設けられた水平ピン回りに垂直方向に回動し製品が載置される垂直回動部と、垂直回動部を水平ピン回りに上側に付勢する付勢部材とを備え、
一対の棚部材の開位置において、一対の棚部材上に製品が載置されていない場合には、棚部材の垂直回動部の先端部は棚部材受け柱の受け部と隙間を有し、一方、一対の棚部材上に製品が載置される場合には、棚部材の垂直回動部の先端部は棚部材受け柱の受け部に当接する。
これによって、一対の棚部材上に製品が載置されていない場合には、棚部材の垂直回動部の先端部は棚部材受け柱の受け部と隙間を有しているので、一対の棚部材を小さな動力で回動することができ、また、一対の棚部材上に製品が載置される場合には、棚部材の垂直回動部の先端部は棚部材受け柱の受け部に当接するので、製品を安定して収納することができる。
【０００７】
本発明に係る収納棚装置において、開閉手段の駆動源はエアシリンダーであって、エア回路には、一対の棚部材の開閉用でセンターブロック可能な３位置切換弁と、棚部材の開、閉位置をそれぞれ検出して作動する一対の２位置切換弁とを設け、
棚部材の開、閉位置にて、２位置切換弁を介してエアをエアシリンダーに補給することにより、一対の棚部材が開、閉位置をそれぞれ維持できるように構成することもできる。
これによって、３位置切換弁の使用により、操作ミスを解消することができると共に、一対の２位置切換弁の使用により、一対の棚部材を常に開、閉位置に保持することができる。
【０００８】
本発明に係る収納棚装置において、付勢部材はコイルバネであってもよい。
これによって、棚部材の垂直回動部の先端部と棚部材受け柱の受け部との隙間を大きく取ることができる。
【０００９】
本発明に係る収納棚装置において、前後の棚部材支持柱を左右方向に複数列設け、しかも、左右方向の最端の棚部材支持柱を除く棚部材支持柱には、受け部を設けることもできる。
これによって、複数列に大量の製品を収納することができる。
【００１０】
【発明の実施の形態】
続いて、添付した図面を参照しつつ、本発明を具体化した実施の形態につき説明し、本発明の理解に供する。
ここに、図１は本発明の一実施の形態に係る収納棚装置の正面図、図２は同収納棚装置の平面図、図３は同収納棚装置の要部正断面図、図４は同収納棚装置の要部平面図、図５は図３のａ部拡大図、図６は図４の矢視Ａ−Ａ断面図、図７はエア回路を示す説明図、図８は棚部材の開、閉位置と２位置切換弁の取付位置との関係を示す説明図である。
【００１１】
図１〜図４に示すように、本発明の一実施の形態に係る収納棚装置１０は、上下方向に間隔Ｋを開けて２段に配置され、しかも、左右方向に６列配置された水平方向に開閉する一対の棚部材１１、１２を有しており、一対の棚部材１１、１２が開位置にある場合には、一対の棚部材１１、１２上に製品の一例である６角パイプＰを３（本／段）×２段＝６本載置して収納でき、一方、一対の棚部材１１、１２が閉位置（図２中、二点鎖線で示す）にある場合には、一対の棚部材１１、１２の下方の６角パイプＰを取り出したり、又は一対の棚部材１１、１２の下方に６角パイプＰを載置することができるように構成されている。
【００１２】
また、収納棚装置１０は、１２組の棚部材１１、１２と、一対の棚部材１１、１２の基部がそれぞれ回動自在に取付けられた対となる前後の棚部材支持柱１３、１４（１列目〜５列目）及び前後の棚部材支持柱１５、１６（６列目）と、１列目の棚部材支持柱１３、１４と対となって、一対の棚部材１１、１２の先端部１７が当接する受け部１８を備えた前後の棚部材受け柱１９、２０（１列目）とを有し、前後の棚部材支持柱１３、１４（１列目〜５列目）は、２列目〜５列目の前後の棚部材支持柱１３、１４及び６列目の前後の棚部材支持柱１５、１６とそれぞれ対となって、一対の棚部材１１、１２の先端部１７が当接する受け部１８ａを備えている。
【００１３】
以下、これらについて詳しく説明する。なお、同一の構成要素については、同一の符号を付して詳しい説明を省略する。また、一対の棚部材１１、１２に載置された６角パイプＰの長手方向を前後方向、前後方向に直交する方向を左右方向、前後方向及び左右方向に直交する方向を上下方向と定義する。
【００１４】
図１〜図４に示すように、棚部材支持柱１３〜１６及び棚部材受け柱１９、２０はそれぞれ、同じサイズのＨ形鋼からなっており、棚部材支持柱１３、１４の下端部間、棚部材支持柱１５、１６の下端部間及び棚部材受け柱１９、２０の下端部間はそれぞれ、床面Ｆに固定されて前後方向に配置された連結部材２１を介して連結されている。連結部材２１は、図１及び図２に示すように、両端部に設けられた短尺のＨ形鋼からなる端部材２２、２３と、端部材２２、２３の内側同士を連結する中間部材２４とを備えている。
【００１５】
また、左右方向に隣り合う棚部材受け柱１９、棚部材支持柱１３、１５及び棚部材受け柱２０、棚部材支持柱１４、１６の下端部間はそれぞれ、床面Ｆに固定されて左右方向に配置されたＨ形鋼からなる連結部材２５を介して連結されている。図１に示すように、各列の下段の棚部材１１、１２の下方にはそれぞれ、６角パイプＰが３（本／段）×３段＝９本、前後方向に対となる連結部材２５に載置されて収納できるようになっている。
次に、１列目の上段の一対の棚部材１１、１２について説明するが、棚部材１２は棚部材１１の勝手違いであって、実質的に同じであるので、以降では、棚部材１１についてのみ説明する。
【００１６】
図３〜図６に示すように、棚部材支持柱１３のＨ形鋼のウェブ２６の内側面には垂直方向に間隔を開けて山形鋼からなるピン取付ブラケット２７、２８が設けられており、棚部材１１は、ピン取付ブラケット２７、２８に両端部が支持された垂直ピン２９回りに水平方向に回動する水平回動部３０と、水平回動部３０に水平に設けられた水平ピン３１回りに垂直方向に回動し、６角パイプＰが載置される垂直回動部３２と、垂直回動部３２の基部に一体的に直交して設けられた回動アーム３３と、回動アーム３３を水平ピン３１回りに上側に付勢する付勢部材の一例であるコイルバネ３４とを備えている。垂直ピン２９の上、下端部はそれぞれ、ピン取付ブラケット２７、２８に設けられた短尺パイプ状のピン受け２７ａ、２８ａに保持されている。
【００１７】
水平回動部３０は、断面円形の垂直ピン２９の中間部を覆うパイプ状の摺動部３５と、摺動部３５の上部に設けられ、垂直回動部３２の基部即ち、回動アーム３３の上端部を回動可能に支持する水平ピン３１を取付けるための取付ブラケット３６と、回動アーム３３の下端部に略水平に設けられたコップ状のバネ受け座３７に一端がセットされたコイルバネ３４の他端を受けるバネ受け座３８とを有している。バネ受け座３８は、バネ受け座３７に対向して設けられており、コイルバネ３４の中心部に挿通してコイルバネ３４の伸縮をガイドする断面円形の突起部３９と、突起部３９の基端部に一体的に設けられ、コイルバネ３４の他端を受けると共に、６角パイプＰが棚部材１１に載置された際にバネ受け座３７の内側をガイド可能な断面円形の受け座本体４０とを備えている。
【００１８】
なお、図３及び図５は、棚部材１１上に６角パイプＰが載置されていない状態を表しており、コイルバネ３４の付勢力により、回動アーム３３を介して棚部材１１の先端部１７は棚部材受け柱１９に設けられた受け部１８に当接せず、隙間を有している。棚部材１１上に６角パイプＰが載置されると、コイルバネ３４の付勢力に打ち勝って、棚部材１１の垂直回動部３２の先端部１７は棚部材受け柱１９の受け部１８に当接することになる。
【００１９】
摺動部３５とピン受け２７ａ、２８ａとは外径が同じサイズであり、内径は摺動部３５の方が若干大きいものを使用しており、摺動部３５の上、下端面とピン受け２７ａの下端面、ピン受け２８ａの上端面間（約２ｍｍ）には、リング板状の軸受２７ｂ、２８ｂが嵌装されていると共に、垂直ピン２９の外周面と摺動部３５の内周面との間には、薄肉のスリーブ状の軸受２９ａが嵌装されている。また、水平ピン３１と回動アーム３３との間にも、軸受２９ａと同様のスリーブ状の軸受３１ａが嵌装されている。軸受２７ｂ、２８ｂ、軸受２９ａ及び軸受３１ａは摩擦係数を低減するために、例えば、テフロン（登録商標）製としている。
ピン取付ブラケット２７、２８はそれぞれ、４箇所に形成された取付ボルト孔４１を介して棚部材支持柱１３のＨ形鋼のウェブ２６にねじ締結されている。
【００２０】
図３〜図５に示すように、水平回動部３０の摺動部３５の外周には、平面視してＬ字状のアーム４２の一端部が固定されている。アーム４２の他端部は、棚部材支持柱１３のＨ形鋼のウェブ２６に設けられた対となる軸受４３にロッド側がトラニオン支持された駆動源の一例であるエアシリンダー４４のロッド先端に設けられた二股形状の接続金具４５に、連結ピン４６を介して連結されている。連結ピン４６とアーム４２との間にも、軸受３１ａと同様に、摩擦係数を低減するために、例えば、テフロン（登録商標）製のスリーブ状の軸受４２ａが嵌装されている。ここで、エアシリンダー４４、接続金具４５及びアーム４２等により開閉手段が構成されることになる。かかる構成によって、エアをエアシリンダー４４に供給して駆動することにより、アーム４２を介して水平回動部３０を垂直ピン２９回りに、略９０°回動することができる。
【００２１】
図３及び図４に示すように、棚部材受け柱１９の受け部１８は短尺の溝形鋼からなっており、棚部材受け柱１９のＨ形鋼のフランジに水平に固定されている。受け部１８の上面には、軟質材の一例である樹脂製で矩形板状のライナー４７が取付けられている。また、棚部材１１の垂直回動部３２の６角パイプＰが載置される部分の上面には、軟質材の一例である樹脂製で矩形板状のライナー３２ａが、ねじ締結により取付けられている。
【００２２】
棚部材支持柱１３にも、棚部材受け柱１９の受け部１８と略同様の位置に、受け部１８より長尺の溝形鋼からなる受け部１８ａが、Ｈ形鋼のフランジに水平に固定されている。棚部材受け柱１９、棚部材支持柱１３（棚部材支持柱１５は棚部材受け柱１９と勝手違い）にも、６角パイプＰの載置及び取り出しの際に、６角パイプＰに疵を付けないように、軟質材の一例である樹脂製で矩形板状のライナー１９ａ（頂部）、１９ｂ（対向する側部）が、ねじ締結により取付けられている。
【００２３】
受け部１８の先端部及び受け部１８ａの中間位置にはそれぞれ、棚部材１１の水平方向のずれを防止するためのずれ止め片４８が設けられている。さらに、受け部１８ａの先端部には、棚部材１１の閉位置での回動を停止するための、ストッパー４９が取付けられている。なお、図５中の符号５０はエアシリンダー４４を取付けるために棚部材支持柱１３のウェブ２６に形成された矩形状の切り欠き孔を表している。また、図６中の符号５１、５２は、ピン取付ブラケット２７、２８に取付けたピン受け２７ａ、２８ａを強固に固定するための補強リブを表している。
【００２４】
図７に本発明の一実施の形態に係る収納棚装置１０のエア回路１０ａを示すが、説明を簡略にするため、模式的に表している。
エア回路１０ａにおいて、各列及び各段の一対の棚部材１１、１２毎に、電磁弁からなる３位置切換弁５３が設けられており、１つの３位置切換弁５３によって、棚部材１１、１２の開操作及び棚部材１１、１２の閉操作を行うと共に、３位置切換弁５３の切換の中立位置で全ポートが閉じられて（センターブロックされて）、棚部材１１、１２を棚部材１１、１２の開、閉位置（停止位置）で保持するように構成されている。
【００２５】
さらに、図８にも詳細を示すように、棚部材１１、１２の開、閉位置で、何らかの理由、例えば、長時間の保持によるエアシリンダー４４からのエアリーク、また、エアシリンダー４４、３位置切換弁５３及びエア配管等の製作、組立不良によるエアリーク、さらに、棚部材１１、１２の振動等によって、一対の棚部材１１、１２が開、閉位置から所定の距離で離れると、６角パイプＰを収納及び取り出し作業ができなくなるので、棚部材１１、１２が常時、開、閉位置を保持できるように構成されている。
【００２６】
図７及び図８に示すように、一対の棚部材１１、１２の棚部材１１（棚部材１２でも構わない）には、棚部材１１の開、閉位置をそれぞれ機械的に検出して作動する一対の２位置切換弁５４、５５が設けられており、棚部材１１、１２の開、閉位置にて、２位置切換弁５４、５５を介して対となる２つのエアシリンダー４４にエアを常時補給することにより、一対の棚部材１１、１２の開、閉位置での停止を維持できるように構成されている。
【００２７】
図８に示すように、開、閉位置にある棚部材１１をそれぞれ検出する２位置切換弁５４、５５が、ピン取付ブラケット２７に設けられた板状のブラケット５６に取付けられている。２位置切換弁５４、５５にはそれぞれ、流路切換用のスライドスプールを作動するためのレバー５７、５８が設けられており、棚部材１１の基部（回動アーム３３）がレバー５７、５８に当接することによって、流路を閉から開に切り換えることができる。
【００２８】
図７に示すように、エア回路１０ａにおいて、２位置切換弁５４、５５は３位置切換弁５３より上流側に設けられており、３位置切換弁５３の操作に無関係に作動するように構成されている。しかも、一対の２位置切換弁５４、５５はエア入口同士が連通されており、かつ、各列の上、下段に対して直列に設けられている。
かかる構成によって、図８に示すように、例えば、棚部材１１が開位置にある場合には、３位置切換弁５３は中立位置にあって３位置切換弁５３からのエアは遮断されており、一方、２位置切換弁５４のレバー５７が回動アーム３３に当接して２位置切換弁５４の流路が開となっているので、２位置切換弁５４を介して一対のエアシリンダー４４にエアが常時補給されているため、棚部材１１、１２を開位置に保持することができる。
【００２９】
また、図８に示す棚部材１１が閉位置にある場合も、２位置切換弁５５が２位置切換弁５４と同様に作動し、棚部材１１、１２を閉位置に保持することができる。棚部材１１、１２が開、閉位置以外の位置（レバー５７、５８の作動が及ばない範囲）では、２位置切換弁５４、５５の流路が閉となって、エアシリンダー４４へのエアの補給は遮断されている。なお、図７中の符号５９はエアコンプレッサーを、符号６０はエアフィルター付きレギュレーターを、符号６１、６２はスピードコントローラーを表している。スピードコントローラー６１は、補給用のエアを少量供給するもので、また、スピードコントローラー６２は棚部材１１、１２の回動速度を制御するものである。
【００３０】
なお、３位置切換弁５３を用いて、切換弁の中立位置（ニュートラル）で棚部材１１、１２を開、閉位置に保持した理由は次の通りである。棚部材１１、１２が開状態で６角パイプＰが棚部材１１、１２に載置されている時、誤って棚部材１１、１２を閉状態に操作（誤操作）しようとすると、棚部材１１、１２は６角パイプＰの重量により動作できない。しかし、もし、２位置切換弁を使用した場合には、エアシリンダー４４に作用するエアー圧は、駆動側は最大で、かつ制動側はゼロで保持されることになるので、この状態で、６角パイプＰを吊り上げると、棚部材１１、１２の動作は暴走状態となる。この暴走状態を防止するために、センターブロック可能な３位置切換弁５３を設ける。
しかし、３位置切換弁５３を設けた場合、上述のように、シール等のエアーリークにより、棚部材１１、１２の全開、全閉位置を保持することが困難となることがあるため、スピードコントローラー６１を介して、２位置切換弁５４、５５からリーク分のみエアーを補給するようにしている。従って、２位置切換弁５４、５５からのエアー補給量は、３位置切換弁５３からの供給量と比べて無視できるくらい少量とする必要があり、もし、多量に補給すると、回路上の矛盾のため動作不良を起こすことになる。
【００３１】
次いで、本発明の一実施の形態に係る収納棚装置１０の使用方法及び作用について、図を参照しながら説明する。なお、６角パイプＰが収納されていない収納棚装置１０に、６角パイプＰを収納する場合について説明する。
（１）図１及び図２に示すように、収納したい１列目（２〜６列目も同じ）の上下２段の一対の棚部材１１、１２を閉位置とする。
【００３２】
（２）長さが前後方向に配置され、水平方向に並べて配置された３本の６角パイプＰをリフティングマグネット吊り具により吊って、連結部材２５上に載置する。さらに、リフティングマグネット吊り具により、同じ操作を２回繰り返して、連結部材２５上に載置された３本の６角パイプＰ上に、３本の６角パイプＰを２段載置して、連結部材２５上に、合計３本の６角パイプＰを３段載置する。
（３）下段用の３位置切換弁５３を開操作して、下段用の一対のシリンダー４４を駆動し、下段の一対の棚部材１１、１２を閉位置から開位置に回動する。この際、棚部材１１、１２は無負荷であるので、棚部材１１、１２の開位置では、棚部材１１、１２の先端部１７は棚部材受け柱１９の受け部１８と隙間を有している。
【００３３】
（４）下段の一対の棚部材１１、１２上に、リフティングマグネット吊り具により、３本の６角パイプＰを１段載置すると、棚部材１１、１２の先端部１７は棚部材受け柱１９の受け部１８に当接する。さらに、載置された３本の６角パイプＰ上にもう１段の３本の６角パイプＰを載置して、棚部材１１、１２上に３本の６角パイプＰを２段載置する。
【００３４】
（５）上段用の３位置切換弁５３を開操作して、上段用の一対のシリンダー４４を駆動し、上段の一対の棚部材１１、１２を閉位置から開位置に回動する。この際、棚部材１１、１２は無負荷であるので、棚部材１１、１２の開位置では、棚部材１１、１２の先端部１７は棚部材受け柱１９の受け部１８と隙間を有している。
（６）上段の一対の棚部材１１、１２上に、リフティングマグネット吊り具により、３本の６角パイプＰを１段載置すると、棚部材１１、１２の先端部１７は棚部材受け柱１９の受け部１８に当接する。さらに、載置された３本の６角パイプＰ上にもう１段の３本の６角パイプＰを載置して、棚部材１１、１２上に３本の６角パイプＰを２段載置する。
【００３５】
なお、前記（６）の状態に収納された６角パイプＰを取り出す場合は、前記（６）から順次、前記（１）まで逆の操作を行う。
また、一対の棚部材１１、１２の閉位置や無負荷時の開位置において、上述したように、２位置切換弁５４、５５の作動により、常に、一対の棚部材１１、１２は開、閉位置を保持することができるので、収納及び取り出し作業は安全に行える。
【００３６】
本発明は前記した実施の形態に限定されるものではなく、本発明の要旨を変更しない範囲での変更は可能であり、例えば、前記したそれぞれの実施の形態や変形例の一部又は全部を組み合わせて本発明の収納棚装置を構成する場合も本発明の権利範囲に含まれる。
前記実施の形態においては、製品として６角パイプＰを使用したが、これに限定されず、状況に応じて、その他の棒状物を使用することもできる。
【００３７】
前後の棚部材支持柱を左右方向に６列に、かつ、１列当たり一対の棚部材１１、１２を上下２段に設けたが、これに限定されず、必要に応じて、列数については、２〜５列又は７列以上にしたり、また、段数については、３段以上設けることもできる。
棚部材１１、１２の開閉手段の駆動源をエアシリンダー４４としたが、これに限定されず、必要に応じて、電動シリンダー又は油圧シリンダーを用いても構わない。
棚部材１１、１２を別々のエアシリンダー４４により駆動したが、これに限定されず、必要に応じて、一つのエアシリンダーで同期駆動する構造とすることもできる。
【００３８】
棚部材１１、１２の垂直回動部３２を上方に付勢する付勢部材としてコイルバネ３４を用いたが、これに限定されず、必要に応じて、その他の弾性部材（ゴム等）を使用することもできる。
棚部材１１、１２の垂直回動部３２の先端部１７が当接する棚部材受け柱１９の受け部１８に、軟質材として樹脂製のライナー４７を用いたが、これに限定されず、状況に応じて、その他の軟質材（ゴム等）を用いても構わない。
【００３９】
【発明の効果】
請求項１〜４記載の収納棚装置においては、一対の棚部材上に製品が載置されていない場合に、棚部材の垂直回動部の先端部は棚部材受け柱の受け部と隙間を有しているので、一対の棚部材を小さな動力で回動することができ、この結果、棚部材の開閉手段をコンパクトに構成することができるため、収納効率が向上する。また、一対の棚部材上に製品が載置される場合に、棚部材の垂直回動部の先端部は棚部材受け柱の受け部に当接するので、製品を安定して収納することができ、この結果、安定した段積み作業ができる。
特に、請求項２記載の収納棚装置においては、３位置切換弁の使用により、操作ミスを解消することができると共に、一対の２位置切換弁の使用により、一対の棚部材を常に開、閉位置に保持することができるので、段積み作業の安全性が向上する。
【００４０】
請求項３記載の収納棚装置においては、棚部材の垂直回動部の先端部と棚部材受け柱の受け部との隙間を大きく取ることができるので、棚部材の開閉動作がより安定する。
請求項４記載の収納棚装置においては、複数列に大量の製品を収納することができるので、収納量が増加する。
【図面の簡単な説明】
【図１】本発明の一実施の形態に係る収納棚装置の正面図である。
【図２】同収納棚装置の平面図である。
【図３】同収納棚装置の要部正断面図である。
【図４】同収納棚装置の要部平面図である。
【図５】図３のａ部拡大図である。
【図６】図４の矢視Ａ−Ａ断面図である。
【図７】エア回路を示す説明図である。
【図８】棚部材の開、閉位置と２位置切換弁の取付位置との関係を示す説明図である。
【符号の説明】
１０：収納棚装置、１０ａ：エア回路、１１、１２：棚部材、１３〜１６：棚部材支持柱、１７：先端部、１８、１８ａ：受け部、１９：棚部材受け柱、１９ａ、１９ｂ：ライナー（軟質材）、２０：棚部材受け柱、２１：連結部材、２２、２３：端部材、２４：中間部材、２５：連結部材、２６：ウェブ、２７：ピン取付ブラケット、２７ａ：ピン受け、２７ｂ：軸受、２８：ピン取付ブラケット、２８ａ：ピン受け、２８ｂ：軸受、２９：垂直ピン、２９ａ：軸受、３０：水平回動部、３１：水平ピン、３１ａ：軸受、３２：垂直回動部、３２ａ：ライナー（軟質材）、３３：回動アーム、３４：コイルバネ（付勢部材）、３５：摺動部、３６：取付ブラケット、３７：バネ受け座、３８：バネ受け座、３９：突起部、４０：受け座本体、４１：取付ボルト孔、４２：アーム、４２ａ：軸受、４３：軸受、４４：エアシリンダー（駆動源）、４５：接続金具、４６：連結ピン、４７：ライナー、４８：ずれ止め片、４９：ストッパー、５０：切り欠き孔、５１、５２：補強リブ、５３：３位置切換弁、５４、５５：２位置切換弁、５６：ブラケット、５７、５８：レバー、５９：エアコンプレッサー、６０：エアフィルター付きレギュレーター、６１、６２：スピードコントローラー[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a storage shelf apparatus that stores and takes out products by a pair of shelf members on which steel pipes, section steels, steel bars and the like (hereinafter simply referred to as products) are placed open and closed (in and out) in the horizontal direction.
[0002]
[Prior art]
Conventionally, in order to store or take out products of long materials such as steel pipes and steel bars, one support column of a pair of support columns provided at a predetermined horizontal interval is arranged in multiple vertical directions. The shelf member is provided so as to be rotatable in the vertical direction or the horizontal direction, and a storage shelf device in which a receiving portion for supporting the tip end portion of the shelf member is provided in a plurality of vertical directions is used for the other support pillar. ing. In this storage shelf device, a plurality of products can be divided into a plurality of times and placed on a plurality of shelf members, and in particular, when the shelf members rotate in the horizontal direction, the mounting pitch of the shelf members in the vertical direction Can be reduced, and the storage efficiency can be increased. In addition, the shelf member is configured to rotate horizontally through an opening / closing means having an air cylinder or the like (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP-A-8-290810
[0004]
[Problems to be solved by the invention]
However, the conventional storage rack apparatus still has the following problems to be solved.
When the unloaded shelf member on which no product is placed is rotated and opened horizontally, the coefficient of friction between the shelf member and the receiving part in contact with the tip is large, so the output (power) of the air cylinder, etc. Therefore, it is difficult to store the air cylinder in a narrow space, and there is a problem that the storage efficiency is reduced in order to store the air cylinder.
In addition, in order to reduce the coefficient of friction between the shelf member and the receiving portion, for example, when a frictional force reduction mechanism such as a wheel is provided at the tip or receiving portion of the shelf member, the product is placed on the shelf member. The stability was not good.
[0005]
The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a storage shelf apparatus that can use a compact opening / closing means having a small capacity and has good stability even when a product is placed thereon. And
[0006]
[Means for Solving the Problems]
The storage shelf device according to the present invention that meets the above-described object is a pair of front and rear that are arranged in a plurality of stages at intervals in the vertical direction, and the base portions of a pair of shelf members that open and close in the horizontal direction are rotatably attached to each other. A pair of shelf members, and a pair of shelf members having a plurality of stages, each of which has a shelf member support column and a front and rear shelf member receiving column that is paired with the shelf member support column and abuts against the tip of the pair of shelf members. A storage shelf device for placing and storing products thereon,
Each of the pair of shelf members is connected to the opening / closing means and horizontally rotated around a vertical pin provided perpendicular to the shelf member support column, and a horizontal pin horizontally provided on the horizontal rotation unit A vertical rotation portion that rotates in a vertical direction around which the product is placed, and a biasing member that biases the vertical rotation portion upward around the horizontal pin,
In the open position of the pair of shelf members, when the product is not placed on the pair of shelf members, the tip of the vertical rotation portion of the shelf member has a gap with the receiving portion of the shelf member receiving column, On the other hand, when the product is placed on the pair of shelf members, the front end portion of the vertical rotation portion of the shelf member contacts the receiving portion of the shelf member receiving column.
Thus, when the product is not placed on the pair of shelf members, the front end portion of the vertical rotation portion of the shelf member has a gap with the receiving portion of the shelf member receiving column. The member can be rotated with a small amount of power, and when a product is placed on a pair of shelf members, the tip of the vertical rotation portion of the shelf member contacts the receiving portion of the shelf member receiving column. Since it comes into contact, the product can be stored stably.
[0007]
In the storage shelf apparatus according to the present invention, the drive source of the opening / closing means is an air cylinder, and the air circuit includes a three-position switching valve that can be center-blocked for opening and closing the pair of shelf members, and opening and closing the shelf members. A pair of two-position switching valves that operate by detecting each position;
It can also be configured that the pair of shelf members can be maintained in the open and closed positions by supplying air to the air cylinder via the two-position switching valve at the open and closed positions of the shelf members.
Accordingly, the use of the three-position switching valve can eliminate an operation error, and the use of the pair of two-position switching valves can always hold the pair of shelf members in the open and closed positions.
[0008]
In the storage shelf device according to the present invention, the biasing member may be a coil spring.
Thereby, the clearance gap between the front-end | tip part of the vertical rotation part of a shelf member and the receiving part of a shelf member receiving pillar can be taken large.
[0009]
In the storage shelf apparatus according to the present invention, the front and rear shelf member support columns are provided in a plurality of rows in the left-right direction, and the shelf member support columns excluding the most extreme shelf member support columns in the left-right direction may be provided with receiving portions. it can.
Thereby, a large amount of products can be stored in a plurality of rows.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
Here, FIG. 1 is a front view of a storage shelf device according to an embodiment of the present invention, FIG. 2 is a plan view of the storage shelf device, FIG. 3 is a front sectional view of a main part of the storage shelf device, and FIG. FIG. 5 is an enlarged view of part a of FIG. 3, FIG. 6 is a cross-sectional view taken along line AA in FIG. 4, FIG. 7 is an explanatory view showing an air circuit, and FIG. It is explanatory drawing which shows the relationship between the open and closed position of and the attachment position of a 2 position switching valve.
[0011]
As shown in FIGS. 1 to 4, the storage shelf device 10 according to an embodiment of the present invention is arranged in two stages with an interval K in the vertical direction, and is arranged in six rows in the horizontal direction. When the pair of shelf members 11 and 12 are in the open position, the hexagonal pipe as an example of a product is provided on the pair of shelf members 11 and 12. When P (3 (lines / stage) × 2 stages = 6) can be placed and stored, on the other hand, when the pair of shelf members 11 and 12 are in the closed position (indicated by a two-dot chain line in FIG. 2), The hexagonal pipes P below the pair of shelf members 11, 12 are taken out, or the hexagonal pipes P can be placed below the pair of shelf members 11, 12.
[0012]
In addition, the storage shelf device 10 includes 12 sets of shelf members 11 and 12 and a pair of front and rear shelf member support columns 13 and 14 (1) in which the base portions of the pair of shelf members 11 and 12 are rotatably attached. The front ends of the pair of shelf members 11 and 12 paired with the front and rear shelf member support columns 15 and 16 (the sixth column) and the first column shelf member support columns 13 and 14. The front and rear shelf member receiving columns 19 and 20 (first row) provided with the receiving portion 18 with which the portion 17 abuts, and the front and rear shelf member support columns 13 and 14 (first row to fifth row) are: The front and rear shelf members 11 and 12 in the second row to the fifth row are paired with the front and rear shelf member support columns 15 and 16 in the sixth row, and the tip portions 17 of the pair of shelf members 11 and 12 are respectively paired. The receiving part 18a which contact | abuts is provided.
[0013]
These will be described in detail below. In addition, about the same component, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. Further, the longitudinal direction of the hexagonal pipes P placed on the pair of shelf members 11 and 12 is defined as the front-rear direction, the direction orthogonal to the front-rear direction is defined as the left-right direction, and the direction orthogonal to the front-rear direction and the left-right direction is defined as the vertical direction. .
[0014]
As shown in FIGS. 1 to 4, the shelf member support columns 13 to 16 and the shelf member receiving columns 19 and 20 are each made of H-shaped steel of the same size, and between the lower end portions of the shelf member support columns 13 and 14. The lower end portions of the shelf member supporting columns 15 and 16 and the lower end portions of the shelf member receiving columns 19 and 20 are connected to each other via connecting members 21 that are fixed to the floor F and arranged in the front-rear direction. . As shown in FIGS. 1 and 2, the connecting member 21 includes end members 22 and 23 made of short H-shaped steel provided at both ends, and an intermediate member 24 that connects the insides of the end members 22 and 23. It has.
[0015]
Further, the shelf member receiving columns 19, the shelf member supporting columns 13 and 15, the shelf member receiving columns 20, and the lower ends of the shelf member supporting columns 14 and 16 that are adjacent to each other in the left and right direction are fixed to the floor surface F and left and right. Are connected via a connecting member 25 made of H-section steel. As shown in FIG. 1, there are 3 hexagonal pipes P below the shelf members 11 and 12 at the lower stage of each row, and 9 connecting members 25 that are paired in the front-rear direction. It can be placed and stored.
Next, the upper pair of shelf members 11 and 12 in the first row will be described. However, since the shelf member 12 is different from the shelf member 11 and substantially the same, hereinafter, the shelf member 11 will be described. Only explained.
[0016]
As shown in FIG. 3 to FIG. 6, pin mounting brackets 27 and 28 made of angle steel are provided on the inner surface of the H-shaped steel web 26 of the shelf member support column 13 with vertical spacing. The shelf member 11 includes a horizontal rotating portion 30 that rotates horizontally around a vertical pin 29 supported at both ends by pin mounting brackets 27 and 28, and a horizontal pin 31 that is provided horizontally on the horizontal rotating portion 30. A vertical rotation part 32 that rotates in a vertical direction and on which a hexagonal pipe P is placed; a rotation arm 33 that is provided integrally and orthogonally to the base of the vertical rotation part 32; A coil spring 34 as an example of a biasing member that biases the arm 33 upward around the horizontal pin 31 is provided. The upper and lower ends of the vertical pin 29 are respectively held by short pipe-shaped pin receivers 27a and 28a provided on the pin mounting brackets 27 and 28, respectively.
[0017]
The horizontal rotation part 30 is provided on the upper part of the sliding part 35 and the pipe-shaped sliding part 35 which covers the intermediate part of the vertical pin 29 with a circular cross section. Coil spring having one end set on a mounting bracket 36 for mounting a horizontal pin 31 that rotatably supports the upper end of the rotating pin 33 and a cup-shaped spring receiving seat 37 provided substantially horizontally on the lower end of the rotating arm 33. And a spring receiving seat 38 for receiving the other end of 34. The spring receiving seat 38 is provided facing the spring receiving seat 37, and has a projection 39 with a circular cross section that is inserted through the central portion of the coil spring 34 to guide expansion and contraction of the coil spring 34, and a proximal end portion of the projection 39. And a receiving base body 40 having a circular cross section that can receive the other end of the coil spring 34 and guide the inside of the spring receiving seat 37 when the hexagonal pipe P is placed on the shelf member 11. I have.
[0018]
3 and 5 show a state in which the hexagonal pipe P is not placed on the shelf member 11, and the leading end portion of the shelf member 11 via the rotating arm 33 due to the biasing force of the coil spring 34. 17 does not come into contact with the receiving portion 18 provided on the shelf member receiving column 19 and has a gap. When the hexagonal pipe P is placed on the shelf member 11, the urging force of the coil spring 34 is overcome, and the distal end portion 17 of the vertical rotation portion 32 of the shelf member 11 contacts the receiving portion 18 of the shelf member receiving column 19. Will be in touch.
[0019]
The sliding part 35 and the pin receivers 27a and 28a have the same outer diameter, and the inner diameter is slightly larger than that of the sliding part 35. Between the lower end surface of 27a and the upper end surface (about 2 mm) of the pin receiver 28a, ring plate bearings 27b and 28b are fitted, and the outer peripheral surface of the vertical pin 29 and the inner peripheral surface of the sliding portion 35 are fitted. Between the two, a thin sleeve-like bearing 29a is fitted. A sleeve-like bearing 31 a similar to the bearing 29 a is also fitted between the horizontal pin 31 and the rotating arm 33. The bearings 27b and 28b, the bearing 29a, and the bearing 31a are made of, for example, Teflon (registered trademark) in order to reduce the coefficient of friction.
Each of the pin mounting brackets 27 and 28 is screwed to the H-shaped steel web 26 of the shelf member support column 13 through mounting bolt holes 41 formed at four locations.
[0020]
As shown in FIGS. 3 to 5, one end of an L-shaped arm 42 is fixed to the outer periphery of the sliding portion 35 of the horizontal rotating portion 30 in plan view. The other end of the arm 42 is provided at the tip of the rod of an air cylinder 44 which is an example of a drive source in which the rod side is trunnion supported by a pair of bearings 43 provided on the H-shaped steel web 26 of the shelf member support column 13. It is connected to the bifurcated connecting metal fitting 45 via a connecting pin 46. Similarly to the bearing 31a, for example, a sleeve-shaped bearing 42a made of Teflon (registered trademark) is fitted between the connecting pin 46 and the arm 42 in order to reduce the friction coefficient. Here, the air cylinder 44, the connection fitting 45, the arm 42 and the like constitute an opening / closing means. With this configuration, by supplying air to the air cylinder 44 and driving it, the horizontal rotation unit 30 can be rotated about 90 ° around the vertical pin 29 via the arm 42.
[0021]
As shown in FIGS. 3 and 4, the receiving portion 18 of the shelf member receiving column 19 is made of short channel steel and is horizontally fixed to the flange of the H-shaped steel of the shelf member receiving column 19. A rectangular plate-shaped liner 47 made of resin, which is an example of a soft material, is attached to the upper surface of the receiving portion 18. Further, a rectangular plate-like liner 32a made of resin, which is an example of a soft material, is attached to the upper surface of the portion of the vertical rotation portion 32 of the shelf member 11 where the hexagonal pipe P is placed by screw fastening. Yes.
[0022]
Also on the shelf member support column 13, a receiving portion 18 a made of channel steel longer than the receiving portion 18 is horizontally fixed to the flange of the H-shaped steel at a position substantially the same as the receiving portion 18 of the shelf member receiving column 19. Has been. The rack member receiving column 19 and the shelf member supporting column 13 (the shelf member supporting column 15 is different from the shelf member receiving column 19), the hexagonal pipe P is crushed when the hexagonal pipe P is placed and taken out. In order not to attach, resin-made rectangular plate-shaped liners 19a (top portions) and 19b (opposing side portions) which are examples of soft materials are attached by screw fastening.
[0023]
At each intermediate position between the front end portion of the receiving portion 18 and the receiving portion 18a, a stopper piece 48 for preventing the horizontal displacement of the shelf member 11 is provided. Furthermore, a stopper 49 for stopping the rotation of the shelf member 11 at the closed position is attached to the distal end portion of the receiving portion 18a. Note that reference numeral 50 in FIG. 5 represents a rectangular cutout hole formed in the web 26 of the shelf member support column 13 for mounting the air cylinder 44. Further, reference numerals 51 and 52 in FIG. 6 represent reinforcing ribs for firmly fixing the pin receivers 27a and 28a attached to the pin attachment brackets 27 and 28.
[0024]
FIG. 7 shows an air circuit 10a of the storage shelf device 10 according to one embodiment of the present invention, but is schematically shown in order to simplify the description.
In the air circuit 10 a, a three-position switching valve 53 including an electromagnetic valve is provided for each pair of shelf members 11, 12 in each row and each stage, and the shelf members 11, 12 are provided by one three-position switching valve 53. Are opened and the shelf members 11 and 12 are closed, and all the ports are closed (center-blocked) at the neutral position of the switching of the three-position switching valve 53, so that the shelf members 11 and 12 are connected to the shelf members 11 and 12. It is comprised so that it may hold | maintain in 12 open and closed positions (stop position).
[0025]
Further, as shown in detail in FIG. 8, when the shelf members 11 and 12 are in the open and closed positions, for some reason, for example, air leak from the air cylinder 44 due to long-time holding, and the air cylinder 44 and three-position switching. When the pair of shelf members 11 and 12 are opened and separated from the closed position by a predetermined distance due to the production of the valve 53 and the air piping and the like, air leak due to assembly failure, and vibration of the shelf members 11 and 12, the hexagonal pipe P Thus, the shelf members 11 and 12 can be always held in the open and closed positions.
[0026]
As shown in FIGS. 7 and 8, the shelf member 11 of the pair of shelf members 11 and 12 (which may be the shelf member 12) operates by mechanically detecting the open and closed positions of the shelf member 11. A pair of two-position switching valves 54 and 55 are provided, and air is always supplied to the two air cylinders 44 that are paired via the two-position switching valves 54 and 55 when the shelf members 11 and 12 are opened and closed. By replenishing, the pair of shelf members 11 and 12 are configured to be able to maintain the stop at the open and closed positions.
[0027]
As shown in FIG. 8, two-position switching valves 54 and 55 that detect the shelf member 11 in the open and closed positions are attached to a plate-like bracket 56 provided on the pin attachment bracket 27. The two-position switching valves 54 and 55 are respectively provided with levers 57 and 58 for operating the slide spool for switching the flow path, and the base (rotating arm 33) of the shelf member 11 is connected to the levers 57 and 58. By contacting, the flow path can be switched from closed to open.
[0028]
As shown in FIG. 7, in the air circuit 10 a, the two-position switching valves 54 and 55 are provided upstream from the three-position switching valve 53 and are configured to operate regardless of the operation of the three-position switching valve 53. ing. Moreover, the air inlets of the pair of two-position switching valves 54 and 55 communicate with each other, and are provided in series with respect to the upper and lower stages of each row.
With this configuration, as shown in FIG. 8, for example, when the shelf member 11 is in the open position, the three-position switching valve 53 is in the neutral position, and the air from the three-position switching valve 53 is shut off. On the other hand, since the lever 57 of the two-position switching valve 54 abuts against the rotating arm 33 and the flow path of the two-position switching valve 54 is open, the air flows to the pair of air cylinders 44 via the two-position switching valve 54. Is constantly replenished, the shelf members 11 and 12 can be held in the open position.
[0029]
Further, even when the shelf member 11 shown in FIG. 8 is in the closed position, the 2-position switching valve 55 operates in the same manner as the 2-position switching valve 54, and the shelf members 11 and 12 can be held in the closed position. When the shelf members 11 and 12 are in positions other than the open and closed positions (the range in which the levers 57 and 58 are not actuated), the flow paths of the two-position switching valves 54 and 55 are closed, and the air to the air cylinder 44 is closed. Supply is cut off. In FIG. 7, reference numeral 59 represents an air compressor, reference numeral 60 represents a regulator with an air filter, and reference numerals 61 and 62 represent speed controllers. The speed controller 61 supplies a small amount of replenishment air, and the speed controller 62 controls the rotation speed of the shelf members 11 and 12.
[0030]
The reason why the shelf members 11 and 12 are opened and closed at the neutral position (neutral) of the switching valve using the three-position switching valve 53 is as follows. When the shelf members 11 and 12 are open and the hexagonal pipe P is placed on the shelf members 11 and 12, if the shelf members 11 and 12 are erroneously operated (erroneous operation), 12 cannot operate due to the weight of the hexagonal pipe P. However, if a two-position switching valve is used, the air pressure acting on the air cylinder 44 is maintained at a maximum on the driving side and zero on the braking side. When the square pipe P is lifted, the operation of the shelf members 11 and 12 becomes a runaway state. In order to prevent this runaway state, a three-position switching valve 53 that can be center-blocked is provided.
However, when the three-position switching valve 53 is provided, as described above, it may be difficult to maintain the fully open and fully closed positions of the shelf members 11 and 12 due to air leaks such as seals. The air is replenished from the two-position switching valves 54 and 55 only through the leak via the 61. Therefore, the air supply amount from the two-position switching valves 54 and 55 needs to be negligibly small compared with the supply amount from the three-position switching valve 53. Therefore, it will cause malfunction.
[0031]
Next, the usage method and operation of the storage shelf device 10 according to the embodiment of the present invention will be described with reference to the drawings. In addition, the case where the hexagon pipe P is accommodated in the storage shelf apparatus 10 in which the hexagon pipe P is not accommodated is demonstrated.
(1) As shown in FIGS. 1 and 2, the pair of shelf members 11, 12 in the upper and lower two stages of the first row (the same applies to the second to sixth rows) to be stored is set to the closed position.
[0032]
(2) The three hexagonal pipes P, the length of which is arranged in the front-rear direction and arranged in the horizontal direction, are hung by the lifting magnet hanger and placed on the connecting member 25. Furthermore, the same operation is repeated twice by the lifting magnet suspension, and the three hexagonal pipes P are placed in two stages on the three hexagonal pipes P placed on the connecting member 25. A total of three hexagonal pipes P are placed on the connecting member 25 in three stages.
(3) The lower three-position switching valve 53 is opened to drive the pair of lower cylinders 44 to rotate the pair of lower shelf members 11 and 12 from the closed position to the open position. At this time, since the shelf members 11 and 12 are unloaded, the front end portion 17 of the shelf members 11 and 12 has a gap with the receiving portion 18 of the shelf member receiving column 19 at the open position of the shelf members 11 and 12. Yes.
[0033]
(4) When three hexagonal pipes P are placed in one stage on the lower pair of shelf members 11 and 12 by lifting magnet suspension, the tip portions 17 of the shelf members 11 and 12 are placed on the shelf member receiving columns 19. It contacts the receiving portion 18. Further, another three hexagonal pipes P are placed on the three hexagonal pipes P, and two hexagonal pipes P are placed on the shelf members 11 and 12 in two stages. Put.
[0034]
(5) The upper three-position switching valve 53 is opened to drive the upper pair of cylinders 44 to rotate the upper pair of shelf members 11 and 12 from the closed position to the open position. At this time, since the shelf members 11 and 12 are unloaded, the front end portion 17 of the shelf members 11 and 12 has a gap with the receiving portion 18 of the shelf member receiving column 19 at the open position of the shelf members 11 and 12. Yes.
(6) When three hexagonal pipes P are placed in one stage on the pair of upper shelf members 11 and 12 by lifting magnet suspensions, the end portions 17 of the shelf members 11 and 12 are placed on the shelf member receiving columns 19. It contacts the receiving portion 18. Further, another three hexagonal pipes P are placed on the three hexagonal pipes P, and two hexagonal pipes P are placed on the shelf members 11 and 12 in two stages. Put.
[0035]
In addition, when taking out the hexagonal pipe P accommodated in the state of the above (6), the reverse operation from the above (6) to the above (1) is performed.
Further, at the closed position of the pair of shelf members 11 and 12 and the open position when no load is applied, the pair of shelf members 11 and 12 are always opened and closed by the operation of the two-position switching valves 54 and 55 as described above. Since the position can be maintained, the storing and taking out operations can be performed safely.
[0036]
The present invention is not limited to the above-described embodiments, and can be changed without departing from the gist of the present invention. For example, some or all of the above-described embodiments and modifications are included. The case where the storage shelf device of the present invention is configured in combination is also included in the scope of rights of the present invention.
In the above-described embodiment, the hexagonal pipe P is used as a product. However, the present invention is not limited to this, and other rod-like objects can be used depending on the situation.
[0037]
The front and rear shelf member support pillars are arranged in six rows in the left-right direction, and a pair of shelf members 11 and 12 per row are provided in two upper and lower rows, but the present invention is not limited to this. , 2-5 rows or 7 rows or more, and the number of stages can be 3 or more.
The drive source of the opening / closing means of the shelf members 11 and 12 is the air cylinder 44, but is not limited thereto, and an electric cylinder or a hydraulic cylinder may be used as necessary.
Although the shelf members 11 and 12 are driven by separate air cylinders 44, the invention is not limited to this, and a structure in which the shelf members 11 and 12 are synchronously driven by one air cylinder can be used as necessary.
[0038]
Although the coil spring 34 is used as a biasing member that biases the vertical rotation portion 32 of the shelf members 11 and 12 upward, the invention is not limited to this, and other elastic members (rubber or the like) are used as necessary. You can also
Although the resin liner 47 is used as the soft material for the receiving portion 18 of the shelf member receiving column 19 with which the tip end portion 17 of the vertical rotating portion 32 of the shelf members 11 and 12 abuts, the present invention is not limited to this. Depending on the case, other soft materials (rubber etc.) may be used.
[0039]
【The invention's effect】
In the storage shelf device according to any one of claims 1 to 4, when a product is not placed on the pair of shelf members, the tip of the vertical rotation portion of the shelf member has a gap with the receiving portion of the shelf member receiving column. Accordingly, the pair of shelf members can be rotated with a small amount of power. As a result, the opening and closing means for the shelf members can be configured in a compact manner, so that the storage efficiency is improved. In addition, when a product is placed on a pair of shelf members, the tip of the vertical rotation portion of the shelf member abuts on the receiving portion of the shelf member receiving column, so that the product can be stably stored. As a result, stable stacking work can be performed.
In particular, in the storage shelf apparatus according to claim 2, the operation error can be eliminated by using the three-position switching valve, and the pair of shelf members are always opened and closed by using the pair of two-position switching valves. Since it can hold | maintain in a position, the safety | security of stacking work improves.
[0040]
In the storage shelf device according to the third aspect, since the gap between the front end portion of the vertical rotation portion of the shelf member and the receiving portion of the shelf member receiving column can be made large, the opening / closing operation of the shelf member becomes more stable.
In the storage shelf device according to the fourth aspect, since a large amount of products can be stored in a plurality of rows, the storage amount increases.
[Brief description of the drawings]
FIG. 1 is a front view of a storage shelf device according to an embodiment of the present invention.
FIG. 2 is a plan view of the storage shelf device.
FIG. 3 is a front sectional view of an essential part of the storage shelf device.
FIG. 4 is a plan view of an essential part of the storage shelf device.
FIG. 5 is an enlarged view of a part a in FIG. 3;
6 is a cross-sectional view taken along the line AA in FIG.
FIG. 7 is an explanatory diagram showing an air circuit.
FIG. 8 is an explanatory diagram showing the relationship between the open / close position of the shelf member and the mounting position of the two-position switching valve.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10: Storage shelf apparatus, 10a: Air circuit, 11, 12: Shelf member, 13-16: Shelf member support pillar, 17: Tip part, 18, 18a: Receiving part, 19: Shelf member receiving pillar, 19a, 19b: Liner (soft material), 20: shelf member receiving column, 21: connecting member, 22, 23: end member, 24: intermediate member, 25: connecting member, 26: web, 27: pin mounting bracket, 27a: pin receiving, 27b: Bearing, 28: Pin mounting bracket, 28a: Pin receiver, 28b: Bearing, 29: Vertical pin, 29a: Bearing, 30: Horizontal rotating part, 31: Horizontal pin, 31a: Bearing, 32: Vertical rotating part 32a: liner (soft material), 33: rotating arm, 34: coil spring (biasing member), 35: sliding portion, 36: mounting bracket, 37: spring receiving seat, 38: spring receiving seat, 39: protrusion Part, 40: base body 41: mounting bolt hole, 42: arm, 42a: bearing, 43: bearing, 44: air cylinder (drive source), 45: connection fitting, 46: connecting pin, 47: liner, 48: slip stopper, 49: stopper , 50: Notch hole, 51, 52: Reinforcing rib, 53: 3-position switching valve, 54, 55: 2-position switching valve, 56: Bracket, 57, 58: Lever, 59: Air compressor, 60: With air filter Regulator, 61, 62: Speed controller

Claims

A pair of front and rear shelf member support columns, which are arranged in a plurality of stages at intervals in the vertical direction and in which a base portion of a pair of shelf members that open and close in a horizontal direction is rotatably attached, and the shelf member support columns, A pair of front and rear shelf member receiving columns provided with receiving portions against which the tip ends of the pair of shelf members abut, and a product is placed and stored on the plurality of pairs of shelf members. A storage shelf device,
The pair of shelf members are respectively connected to the opening / closing means and horizontally rotated around a vertical pin provided perpendicular to the shelf member support column, and horizontally provided on the horizontal rotation unit. A vertical rotation part that rotates in the vertical direction around the horizontal pin and on which the product is placed, and a biasing member that biases the vertical rotation part upward around the horizontal pin,
In the open position of the pair of shelf members, when no product is placed on the pair of shelf members, the tip of the vertical rotation portion of the shelf member is spaced from the receiving portion of the shelf member receiving column. On the other hand, when a product is placed on the pair of shelf members, the tip of the vertical rotation portion of the shelf member abuts on the receiving portion of the shelf member receiving column. Storage shelf device to do.

2. The storage shelf apparatus according to claim 1, wherein a driving source of the opening / closing means is an air cylinder, and an air circuit includes a three-position switching valve capable of being center-blocked for opening / closing the pair of shelf members, and the shelf member. A pair of two-position switching valves that operate by detecting the open and closed positions,
The shelf member is configured to maintain the open and closed positions by supplying air to the air cylinder via the two-position switching valve at the open and closed positions of the shelf member. A storage shelf device.

The storage shelf apparatus according to any one of claims 1 and 2, wherein the biasing member is a coil spring.

The storage shelf device according to any one of claims 1 to 3, wherein the front and rear shelf member support columns are provided in a plurality of rows in the left-right direction, and the shelf member excluding the leftmost end shelf member support column is provided. A storage shelf device, wherein the support column is provided with the receiving portion.