JP3833185B2

JP3833185B2 - Gate device

Info

Publication number: JP3833185B2
Application number: JP2003106236A
Authority: JP
Inventors: 敏行五十嵐
Original assignee: 株式会社ヒガノ
Priority date: 2003-04-10
Filing date: 2003-04-10
Publication date: 2006-10-11
Anticipated expiration: 2023-04-10
Also published as: JP2004308352A

Description

【０００１】
【発明の属する技術分野】
本発明は、門扉装置に関し、特に、門扉本体を取付けた筒状回転体を固定支柱に対して、自動調心ころ軸受及び円錐ころ軸受を介して取付けることにより、構成自体が安価で且つ組付けも容易である門扉装置を提供することを目的とする。
【０００２】
【従来の技術】
一般的に門扉装置は、小型のものは、門扉本体を固定支柱に対してヒンジにより回転自在に取付け、また中型又は大型のものは、門扉本体の下部に車輪を取り付けて地面上をころがすか、又は門扉本体を、固定支柱に対してジャーナル軸受を介して同軸的且つ回転自在に嵌合した回転体に対して片持ち状即ち釣り方式で取付けていた。しかしながら中型又は大型の門扉装置では、長期間の使用に伴いジャーナル軸受に隙間ができて門扉本体の動きにガタを生ずる場合があった。このため、特に中型の門扉装置では、ジャーナル軸受に換えて既成のボールまたはローラ軸受を使用するものがあり、その一例を次に示す。
【０００３】
従来の門扉装置としては、本出願人になる特許第３０３８１５０号（特願平８−１７４９２３号）があり、その構成を図１乃至図４に示す。図１中、１は円筒形固定支柱、２は円筒形回転体、３は門扉本体、４及び５は夫々、筒状回転体２を固定支柱１に対して回転自在に支持案内する上部及び下部軸受であり、固定支柱１の上部にフランジ６を、且つ回転体２の上部にフランジ７、頂部板８、Ｕ字形板９を夫々設けている。上部軸受４は、フランジ７の上下凹部内に夫々収納された既成のボールスラスト軸受１０及び１１と、フランジ６及び７間に収納した既成のラジアル軸受１２とからなり、ボールスラスト軸受１０はフランジ６の頂部にボルト１３により取付けた押圧板１４とフランジ７の上部凹部底面との間に配され、且つボールスラスト軸受１１はフランジ６及び７間に配されて、円筒形回転体２の固定支柱１に対する上下方向力即ち、スラスト力を受ける。ラジアル軸受１２は同じくフランジ６及び７間に配されて、円筒形回転体２の固定支柱１に対する半径方向力を受ける。
【０００４】
下部軸受５は、回転体２の下部内周に固着された雌側円筒形軸受部１５と、固定支柱１の下部外周に固着されて前記円筒形軸受部１５の内周に摺動的に接する雄側円筒形軸受部１６とからなる所謂ジャーナル軸受よりなり、円筒形回転体２の固定支柱１に対する半径方向力を受ける。
【０００５】
また、図２に示す如く、門扉本体３の上部の水平凸部１７が前記Ｕ字形板９内に挿入されて、ナット１８付きボルト１９が穴９ａを介してねじ穴１７ａに螺入され、また、門扉本体３の下部が回転体２の下部１対の平行板２０間に挿入されてボルト２１が穴２０ａを介して門扉本体３のねじ穴３ａに螺入され、かくして、門扉本体３は回転体２に対して保持される。ここで、ボルト１９を回転調整して門扉本体３の張り出し方向の上面レベルの傾きを適宜調整して、ボルト２２を長孔９ｂを介して水平凸部１７のねじ孔１７ｂに螺入して固定する。
【０００６】
なお、図３及び図４は他の例の下部軸受５′を示し、固定支柱１の１対の水平フランジ部２５の周方向等分位置に挿通固定された複数のシャフト２６に中央の径が膨らんだローラ２７が回転自在に取付けられ、このローラ２７が回転体２の内周にころがり接触して半径方向力を受ける。
【０００７】
【発明が解決しようとする課題】
上記従来例によれば、次に述べる問題点があった。
（Ｉ）上部軸受４はスラストを受けるための２個の軸受１０及び１１、更には半径方向力（ラジアル力）を受けるための軸受１２と合計３個の既成の軸受を必要とし、且つ下部軸受５は特別に加工製作した円筒形軸受部１５及び１６を必要とするので、部品点数が多く構成が複雑で、全体としてコストが高くなり、しかも軸受の個数が多い分だけ組み付け作業も面倒で一層コストが高くなる。
【０００８】
図３の従来例の下部軸受５′も各部品２６，２７は特別に加工製作するので、同様に加工コストが高く且つ組み付け作業も面倒であった。
【０００９】
（ＩＩ）また門扉本体３の張り出し方向の上面レベルの傾きを調整するために、Ｕ字形板９、水平凸部１７及び１対の平行板２０が必要であり、部品点数が多く構成が複雑でコストが高くなる。
【００１０】
【課題を解決するための手段】
本発明の門扉装置によれば、地面に対して固定的に立設した固定支柱（３３）と、該固定支柱（３３）に対して上方第１の軸受及び下方の第２の軸受を介して同軸的且つ回転自在に嵌合された筒状回転体（３４）と、該筒状回転体に取付けられた門扉本体（３１）とを具備する門扉装置において、前記第１の軸受は自動調心ころ軸受（５１）であり、且つ前記第２の軸受は円錐ころ軸受（５５）であり、該固定支柱（３３）は、その上部に前記自動調心ころ軸受（５１）の外輪部（５３）を保持する上方保持台（３８）と、その下部に前記円錐ころ軸受（５５）の内輪部（５６）を保持する下方保持台（４０）とを有し、該筒状回転体（３４）は、その上部において前記自動調心ころ軸受（５１）の内輪部（５２）に上方側から嵌入固着される軸部（４２ａ）を有して該筒状回転体に固着された軸部部材（フランジ部材）（４２）と、その下部において前記円錐ころ軸受（５５）の外輪部（５７）に上方側から当接するよう該筒状回転体に固着されたリング状部材（４３）とを有する。
【００１１】
好ましくは、前記上方保持台（３８）は、前記固定支柱の上部に一体的又は別部材として形成され、且つ筒状部（３８ａ）を有し、該筒状部（３８ａ）内に、前記自動調心ころ軸受（５１）の外輪部（５３）が収納保持される。
【００１２】
また好ましくは、前記下方保持台（４０）は、前記固定支柱の下部外周に一体的又は別部材として固着された大径部（４０）であり、該大径部（４０）の上部に設けた小径段部（４０ａ）に、前記円錐ころ軸受（５５）の内輪部（５６）が嵌合される。
【００１３】
また好ましくは、前記リング状部材（４３）は、断面略Ｌ字形をなし、該Ｌ字形の１辺が前記円錐ころ軸受外輪部（５７）の上面に且つ該Ｌ字形の他の辺が前記円錐ころ軸受外輪部（５７）の外周面に接する。
【００１４】
また好ましくは、前記固定支柱（３３）及び筒状回転体（３４）には夫々、第１及び第２の当接部（４０ｂ；３４ｂ）が設けられ、前記門扉本体（３１）及び筒状回転体（３４）が所定角度だけ回転するに伴い、その回転範囲の両端において前記第１及び第２の当接部（４０ｂ；３４ｂ）が夫々当接して前記門扉本体（３１）の開き状態、及び閉じ状態の限界位置を規制する。
【００１５】
また好ましくは、前記門扉本体（３１）の前記筒状回転体（３４）への取り付け位置は、該門扉本体（３１）の閉じ状態において、該筒状回転体（３４）の前面側に直接的に取付けられている。
【００１６】
また好ましくは、前記門扉本体（３１）は前記筒状回転体（３４）に対して、該筒状回転体（３４）の上部の略水平方向へ離間した２カ所においてボルト（６０、６１）締めにより取付けられ、且つ該筒状回転体（３４）の下部の１カ所において該門扉本体（３１）の取り付け部（３１ｂ）が移動調整機構（４４、６２）を介して該筒状回転体（３４）に取付けられ、該門扉本体（３１）が該筒状回転体（３４）に対して上記３カ所により三点支持された状態で上記移動調整機構（４４、６２）の調整操作により該門扉本体（３１）の張り出し方向の上面レベルの傾きを調整し得る。
【００１７】
また好ましくは、前記取り付け部（３１ｂ）は取り付け板部（３１ｂ）であり、また前記移動調整機構（４４、６２）は、前記筒状回転体（３４）に固着されて略水平方向へ伸びて取り付け板部（３１ｂ）を貫通するボルト（４４）と該ボルトに螺合された少なくとも１対のナット（６２）とからなる。ことを特徴とする門扉装置。
【００１８】
【発明の実施の形態】
以下、本発明の門扉装置の一実施形態について図面を参照して詳細に説明する。
【００１９】
図５及び図６は夫々、本発明の門扉装置の一実施形態の門扉本体の閉状態の正面図及び平面図、図７及び図８は夫々図５及び図６の門扉装置の要部の門扉本体の閉状態及び開状態の一部断面平面図であり、図９及び図１０は夫々、図５の門扉装置の固定支柱及び回転体の組み付け状態の平面図及び縦断図である。
【００２０】
各図中、門扉本体３１を支える支柱部分３２は筒状固定支柱３３及びこれに回転自在に嵌合した四角筒状回転体３４からなり、門扉本体３１は四角筒状回転体３４の一辺外面に取付け固着される。従って、図５乃至図７に示す如く、門扉本体３１は閉じている時に壁３５及び戸当たり柱３６間の出入り口空間を閉鎖し、また図８に示す如く門扉本体３１が図７R>７の状態から時計方向へ略１８０度門の内側方向へ回転したときに、出入り口空間を完全に開放する。なお、四角筒状回転体３４は断面四角形に限らず、円筒形、又は５角形以上の多角形筒状体でも良い。
【００２１】
門扉本体３１は、支柱部分３２側の上部に１対のねじ孔３１ａ（図５、７参照）を、且つ下部に取り付け板部３１ｂ（孔３１ｃを有する；図７、８、１４参照）を夫々有する。
【００２２】
固定支柱３３は、図１０乃至図１２に示す如く、円筒体３７の上部に上方保持台３８を嵌入してボルト４５（図１１参照）により固着し、且つ下部外周に下方保持台４０を溶接固着し、下端に基礎板４６を溶接固着してなる。下方保持台４０はその上端に小径段部４０ａ（図１１参照）を且つ下端外周の１カ所に半径方向に突出する当接部４０ｂ（図７，８、１１、１８参照）を夫々有する。なお、後述する如く円錐ころ軸受５５の内輪部５６を固定支柱３３に上方から遊嵌するときに、上方保持台３８の外径が該内輪部５６の内径と干渉しないほど小さければ、上方保持台３８は固定支柱３３と予め一体形成しておいても良い。又下方保持台４０は固定支柱３３と一体に大径部４０として一体形成しても良い。
【００２３】
四角筒状回転体３４は、図９乃至図１１及び図１３に示す如く、四角筒状体４１の上部に軸部部材としての上方四角形フランジ４２（下方突出の円柱状軸部４２ａ及びボルト孔４２ｂを有する）を嵌入して溶接固着し、且つ下部内周に下方四角形リング状フランジ４３（リングの断面は略Ｌ字形）を溶接固着してなる。又、四角筒状回転体３４は上端に１対のボルト孔３４ａを有し、且つ下部に水平方向の門扉本体調整ボルト４４を溶接固着され、また下端の１対の対向辺内面に１対の当接部３４ｂ（図７、８、１１、１３、１８参照）を固着される。
【００２４】
５１は自動調心ころ軸受で、図１１及び１６に示す如く、内輪５２及び外輪５３間に２列複数のころ５４が介装されてなる。
５５は円錐ころ軸受で、図１１及び１７に示す如く、内輪５６及び外輪５７間に１列複数の円錐ころ５８が介装されており、これら内輪５６、外輪５７及び１列複数の円錐ころ５８は適宜分解できる。
【００２５】
なお、勿論、自動調心ころ軸受５１及び円錐ころ軸受５５は、各１個に限らず、何れか一方又は両方を複数個ずつ設けても良い。
次に、前記本発明門扉装置の組み付けについて説明する。
【００２６】
まず、未だその上方保持台３８を取付ける以前の固定支柱３３に対して、該固定支柱３３の上側から円錐ころ軸受５５を嵌合して下方へ移動させ、その内輪５６を第２の下方保持台４０の小径部４０ａに嵌合当接させる。
【００２７】
しかる後に、固定支柱３３の上端に上方保持台３８を嵌入した後にボルト４５により締め付け固着し（図１１参照）、この上方保持台３８の円筒部３８ａ内に自動調心ころ軸受５１を圧入嵌合して取付ける。
【００２８】
続いて、四角筒状回転体３４を固定支柱３３の上側から該固定支柱３３に遊嵌させ、上方フランジ４２の軸部４２ａを自動調心ころ軸受５１の内輪５２内に圧入嵌合させ、同時に下方フランジ４３のリング状Ｌ形断面部を円錐ころ軸受５５の外輪５７に当接させる。このときＬ形断面の一辺を外輪５７の上面に且つ他辺を外輪５７の外周面に当接接触させる。次いで、ボルト５９をフランジ４２のボルト孔４２ｂを介して上方保持台３８のねじ孔３８ａに螺入し固定する。かくして、四角筒状回転体３４の自重は、２つの軸受５１及び５５を介して固定支柱３３により保持される。
【００２９】
次に、図７、８、１４、１５に示す如く、門扉本体３１は、支柱部分３２に対して次の如く取付けられる。門扉本体３１の支柱部分３２側一端部の上部において、１対のボルト６０、６１が四角筒状回転体３４の所定の面（図７の如く、門扉本体３１が閉じた状態で前面側の面）の内側よりボルト孔３４ａを介してねじ孔３１ａに螺入されて固定され、同時に下部において、取り付け板部３１ｂの孔３１ｃが門扉本体調整ボルト４４に遊嵌され取り付け板部３１ｂの両側においてこのボルト４４に螺合された１対のナット６２により締め付け固定される。
【００３０】
なお、上記とは逆に、取り付け板部３１ｂを筒状回転体３４側に設け、且つ調整ボルト４４が門扉本体３１側に設けても良い。
【００３１】
従って、門扉本体３１は、１対のボルト６０、６１及び調整ボルト４４（取り付け板部３１ｂ）の３点で支持されていることになる。従って、門扉本体３１の張り出し方向上面が水平方向と一致するようにレベル調節する場合は、特に門扉本体側のボルト６１を多少緩めた状態で調整ボルト４４のナット６２を操作することにより、調整ボルト４４に対する取り付け板部３１ｂの位置を移動調節すると、門扉本体３１は、門扉本体３１とは反対側のボルト６０を中心に垂直面内で若干回転して上記レベル調整が行われる。しかる後に、上記ボルト６１及びナット６２を締め付ける。
【００３２】
続いて、その操作について説明する。
図７中、門扉本体３１が閉じている状態では、回転体３４の１対の当接部３４ｂ、３４ｃのうち当接部３４ｂが固定支柱３３の当接部４０ｂに当接している。ここで、門扉本体３１を時計方向へ略１８０度だけ回転させると、回転体３４も一体回転して、図８に示す如く、今度は他の当接部３４ｃが前記当接部４０ｂに当接して図８の門扉本体３１が開いた状態となる。
【００３３】
次に、門扉本体３１を閉じるときは、上記の場合と逆に図８の状態より図７の状態になる。
【００３４】
このとき、図１１中、回転体３４の回転に伴い、装置の上部では回転体３４の固定支柱３３に対するスラスト力及びラジアル力が自動調心軸受５１により受けられ、また装置の下部では回転体３４の固定支柱３３に対するスラスト力及びラジアル力が円錐ころ軸受５５により受けられ、これにより回転体３４の円滑な回転を保証できる。特に自動調心軸受５１は固定支柱３３の軸線に対する回転体３４の軸線の傾きも吸収することができる。
【００３５】
なお、前記実施の形態は、門扉本体３１が片側開きであったが、勿論２つの門扉本体３１及び２つの支柱部分３２を設けて両側開き形式としてもよい。
【００３６】
【発明の効果】
本発明の上記構成によれば、次に示す利点がある。
（Ｉ）門扉本体３１の回転を支持するための軸受は既成の合計２個の自動調心ころ軸受５１及び円錐ころ軸受５５のみであり、構成が極めて簡単であり極めて安価である。また、既成の軸受のみを使用するので、軸受は摩耗を生じ難く門扉本体３１の動きにガタを生じ難く、長期的信頼性が向上する。
【００３７】
（ＩＩ）またこれら軸受５１、５５を取り付けるためには、固定支柱３３の上下部に夫々上方保持台３８、下方保持台４０を設け、且つ筒状回転体３４は自動調心軸受５１の内輪部５２に嵌入する軸部４２ａを有する軸部部材（四角形フランジ４２）及び円錐ころ軸受５５の外輪部５２に当接するリング状フランジ部材（リング状フランジ４３）を設けるのみでよいため、全体の取り付け構成も必要最低限の個数の部材で良く構成が簡単であり、一層コストを低減し得る。
【００３８】
（ＩＩＩ）前記門扉本体３１は前記筒状回転体３４に対して、門扉本体の閉じ状態において、該筒状回転体３４の前面側に直接的に取付けられているため、前面側から見て前記筒状回転体が該門扉本体に隠れて見えないので、その分美観を向上しうる。
【００３９】
（ＩＶ）門扉本体３１は筒状回転体３４に対して、該筒状回転体の上部の略水平方向へ離間した２カ所においてボルト締めにより取付けられ、且つ該筒状回転体の下部の１カ所において該門扉本体の取り付け部３１ｂが移動調整機構（例えば、ボルト４４及び２つのナット６２）を介して該筒状回転体に取付けられているため、該筒状回転体３４に対して三点支持された状態で上記移動調整機構の調整操作により該門扉本体の張り出し方向の上面レベルの傾きを調整し得、従って、従来の特別のＵ字形板及び水平凸部（図２参照）を設けてレベル調整を行うものに比して、部品点数を低減し構成を簡単化し得る。
【図面の簡単な説明】
【図１】従来の門扉装置の一例の縦断図である。
【図２】図１の従来例の要部の分解斜視図である。
【図３】図１の従来例の他の例の要部の縦断図である。
【図４】図３中、４−４線に沿った断面図である。
【図５】本発明の門扉装置の一実施形態の門扉本体の閉状態の正面図である。
【図６】図５の門扉装置の、門扉本体の閉状態の平面図である。
【図７】図５の門扉装置の要部の、門扉本体の閉状態の一部断面平面図である。
【図８】図５の門扉装置の要部の、門扉本体の開状態の一部断面平面図ある。
【図９】図５の門扉装置の、固定支柱及び回転体の組み付け状態の平面図である。
【図１０】図５の門扉装置の、固定支柱及び回転体の組み付け状態の縦断図である。
【図１１】図５の門扉装置の、固定支柱及び回転体の組み付け状態の要部の拡大縦断図である。
【図１２】図５の門扉装置の、固定支柱の縦断図である。
【図１３】図５の門扉装置の、回転体の縦断図である。
【図１４】図５の門扉装置の、門扉本体の一部側面図である。
【図１５】図５の門扉装置の、門扉本体と回転体との取付け部を示す側面図である。
【図１６】図５の門扉装置に使用する自動調心ころ軸受の縦断図である。
【図１７】図５の門扉装置に使用する円錐ころ軸受の縦断図である。
【図１８】図５の門扉装置の要部の一部断面斜視図である。
【符号の説明】
１、３３：固定支柱
２、３４：筒状回転体
３、３１：門扉本体
４：上部軸受
５、５′：下部軸受
９：Ｕ字形板
１０、１１：スラストボール軸受
１２：ラジアルボール軸受
１５、１６：円筒形軸受部
１７：水平凸部
２７：ローラ
３２：支柱部分
３４ｂ、３４ｃ：第２の当接部
３５：壁
３７：円筒体
３８：上方保持台
４０：下方保持台（大径部）
４０ａ：小径段部
４０ａ：第１の当接部
４１：四角筒状体
４２：上方四角形フランジ
４４：門扉本体調整ボルト
４６：基礎板
５１：自動調心ころ軸受
５５：円錐ころ軸受
６０、６１：ボルト
６２：調整ナット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gate device, and in particular, the structure itself is inexpensive and assembled by attaching a cylindrical rotating body to which a gate body is attached to a fixed column via a self-aligning roller bearing and a tapered roller bearing. It is an object to provide a gate device that is also easy.
[0002]
[Prior art]
In general, the gate device is small, and the gate body is rotatably attached to the fixed support by a hinge, and the middle or large one is attached to the lower part of the gate body to roll on the ground, Alternatively, the gate body is attached in a cantilever manner, that is, in a fishing manner, to a rotating body that is coaxially and rotatably fitted to a fixed column via a journal bearing. However, in the middle- or large-sized gate device, there is a case where a gap is formed in the journal bearing with long-term use, and the movement of the gate main body may be loose. For this reason, there are some medium-sized gate devices that use pre-made ball or roller bearings instead of journal bearings.
[0003]
As a conventional gate door device, there is Japanese Patent No. 3038150 (Japanese Patent Application No. Hei 8-174923) which becomes the present applicant, and its configuration is shown in FIGS. In FIG. 1, 1 is a cylindrical fixed support, 2 is a cylindrical rotating body, 3 is a gate body, and 4 and 5 are upper and lower parts for supporting and guiding the cylindrical rotating body 2 with respect to the fixed support 1, respectively. It is a bearing, and a flange 6 is provided above the fixed support 1, and a flange 7, a top plate 8, and a U-shaped plate 9 are provided above the rotating body 2. The upper bearing 4 includes pre-made ball thrust bearings 10 and 11 housed in the upper and lower recesses of the flange 7, and a pre-made radial bearing 12 housed between the flanges 6 and 7. The ball thrust bearing 11 is disposed between the flanges 6 and 7 and is disposed between the pressing plate 14 attached to the top of the bolt 7 by the bolt 13 and the bottom surface of the upper concave portion of the flange 7. It receives a vertical force, ie, a thrust force. The radial bearing 12 is also arranged between the flanges 6 and 7 and receives a radial force on the fixed column 1 of the cylindrical rotating body 2.
[0004]
The lower bearing 5 is fixed to the lower outer periphery of the fixed column 1 and is slidably in contact with the inner periphery of the cylindrical bearing portion 15. It consists of a so-called journal bearing composed of a male cylindrical bearing portion 16 and receives a radial force on the fixed column 1 of the cylindrical rotating body 2.
[0005]
Further, as shown in FIG. 2, the horizontal convex portion 17 at the upper part of the gate body 3 is inserted into the U-shaped plate 9, and a bolt 19 with a nut 18 is screwed into the screw hole 17a through the hole 9a. The lower part of the gate body 3 is inserted between the pair of lower parallel plates 20 of the rotating body 2, and the bolt 21 is screwed into the screw hole 3a of the gate body 3 through the hole 20a, so that the gate body 3 rotates. Held against the body 2. Here, the rotation of the bolt 19 is adjusted so that the inclination of the upper surface level in the extending direction of the gate body 3 is appropriately adjusted, and the bolt 22 is screwed into the screw hole 17b of the horizontal convex portion 17 through the long hole 9b and fixed. To do.
[0006]
3 and 4 show another example of the lower bearing 5 ′, and the central diameter of the plurality of shafts 26 inserted and fixed at the circumferentially equal positions of the pair of horizontal flange portions 25 of the fixed column 1 is shown. A swelled roller 27 is rotatably attached, and this roller 27 rolls into contact with the inner periphery of the rotating body 2 and receives a radial force.
[0007]
[Problems to be solved by the invention]
The conventional example has the following problems.
(I) The upper bearing 4 requires two bearings 10 and 11 for receiving thrust, and further a bearing 12 for receiving radial force (radial force) and a total of three pre-made bearings. 5 requires specially processed cylindrical bearings 15 and 16, so the number of parts is large, the configuration is complicated, the cost is high as a whole, and the assembly work is troublesome because of the large number of bearings. Cost increases.
[0008]
In the lower bearing 5 'of the conventional example of FIG. 3, the parts 26 and 27 are specially manufactured, so that the processing cost is similarly high and the assembling work is troublesome.
[0009]
(II) Further, in order to adjust the inclination of the upper surface level in the extending direction of the gate body 3, the U-shaped plate 9, the horizontal convex portion 17 and the pair of parallel plates 20 are necessary, and the number of parts is large and the configuration is complicated. Cost increases.
[0010]
[Means for Solving the Problems]
According to the gate apparatus of the present invention, the fixed support (33) standingly fixed with respect to the ground, and the first support and the lower second bearing with respect to the fixed support (33). In the gate device comprising a cylindrical rotating body (34) fitted coaxially and rotatably, and a gate body (31) attached to the cylindrical rotating body, the first bearing is self-aligning. It is a roller bearing (51), and the second bearing is a tapered roller bearing (55), and the fixed column (33) has an outer ring portion (53) of the self-aligning roller bearing (51) at an upper portion thereof. An upper holding base (38) holding a lower holding base (40) holding the inner ring portion (56) of the tapered roller bearing (55), and the cylindrical rotating body (34). The upper part is fitted and fixed to the inner ring part (52) of the self-aligning roller bearing (51) from above. A shaft member (flange member) (42) having a shaft portion (42a) fixed to the cylindrical rotating body, and an outer ring portion (57) of the tapered roller bearing (55) at the lower portion from above. And a ring-shaped member (43) fixed to the cylindrical rotating body so as to come into contact therewith.
[0011]
Preferably, the upper holding base (38) is formed integrally or as a separate member on the upper part of the fixed column, and has a cylindrical part (38a), and the automatic part (38a) has the automatic part in the automatic part (38a). The outer ring portion (53) of the spherical roller bearing (51) is stored and held.
[0012]
Further preferably, the lower holding base (40) is a large-diameter portion (40) fixed integrally or as a separate member to the outer periphery of the lower portion of the fixed column, and is provided on the upper portion of the large-diameter portion (40). The inner ring portion (56) of the tapered roller bearing (55) is fitted into the small diameter step portion (40a).
[0013]
Preferably, the ring-shaped member (43) has a substantially L-shaped cross section, one side of the L-shape is on the upper surface of the tapered roller bearing outer ring portion (57), and the other side of the L-shaped is the cone. It contacts the outer peripheral surface of the roller bearing outer ring portion (57).
[0014]
Preferably, the fixed support (33) and the cylindrical rotating body (34) are provided with first and second contact portions (40b; 34b), respectively, and the gate body (31) and the cylindrical rotating body are provided. As the body (34) rotates by a predetermined angle, the first and second contact portions (40b; 34b) contact each other at both ends of the rotation range, and the gate body (31) is opened. Regulate the limit position of the closed state.
[0015]
Preferably, the gate main body (31) is attached to the cylindrical rotating body (34) directly on the front side of the cylindrical rotating body (34) when the gate main body (31) is closed. Installed on.
[0016]
Preferably, the gate main body (31) is tightened with bolts (60, 61) at two positions separated from the cylindrical rotating body (34) in the substantially horizontal direction at the upper part of the cylindrical rotating body (34). attached by, and cylindrical rotary member (34) cylindrical rotating body attaching portion of該門door body (31) in one place in the lower (31b) via a movement adjustment mechanism (44, 62) of (34 ), And the gate main body (31) is adjusted by the movement adjusting mechanism (44, 62) in a state where the gate main body (31) is supported at three points by the three locations with respect to the cylindrical rotating body (34). The inclination of the upper surface level in the projecting direction of (31) can be adjusted.
[0017]
Preferably, the attachment portion (31b) is an attachment plate portion (31b), and the movement adjusting mechanism (44, 62) is fixed to the cylindrical rotating body (34) and extends in a substantially horizontal direction. It consists of a bolt (44) penetrating the mounting plate portion (31b) and at least one pair of nuts (62) screwed into the bolt. A gate device characterized by that.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, one embodiment of a gate device of the present invention is described in detail with reference to drawings.
[0019]
FIGS. 5 and 6 are a front view and a plan view, respectively, of the gate body of the gate device according to an embodiment of the present invention in a closed state, and FIGS. 7 and 8 are main gates of the gate device of FIGS. 5 and 6, respectively. FIG. 9 and FIG. 10 are a plan view and a longitudinal sectional view, respectively, of an assembled state of a fixed column and a rotating body of the gate device of FIG. 5, respectively.
[0020]
In each figure, the column portion 32 that supports the gate body 31 is composed of a cylindrical fixed column 33 and a rectangular cylindrical rotating body 34 that is rotatably fitted to the cylindrical supporting column 33, and the gate body 31 is formed on one side outer surface of the rectangular cylindrical rotating body 34. Mounting fixed. Accordingly, as shown in FIGS. 5 to 7, when the gate main body 31 is closed, the entrance / exit space between the wall 35 and the door column 36 is closed, and as shown in FIG. 8, the gate main body 31 is in the state of FIG. The doorway space is completely opened when the door is rotated approximately 180 degrees clockwise from the inside. The rectangular cylindrical rotating body 34 is not limited to a quadrangular cross section, and may be a cylindrical shape or a polygonal cylindrical shape having a pentagonal shape or more.
[0021]
The gate body 31 has a pair of screw holes 31a (see FIGS. 5 and 7) in the upper part on the column part 32 side, and a mounting plate part 31b (having a hole 31c; see FIGS. 7, 8, and 14) in the lower part. Have.
[0022]
As shown in FIGS. 10 to 12, the fixed support 33 is fitted with an upper holding base 38 on the upper portion of the cylindrical body 37 and fixed by a bolt 45 (see FIG. 11), and the lower holding base 40 is fixed to the lower outer periphery by welding. The base plate 46 is fixedly welded to the lower end. The lower holding table 40 has a small-diameter step portion 40a (see FIG. 11) at the upper end and a contact portion 40b (see FIGS. 7, 8, 11, and 18) protruding radially at one place on the outer periphery of the lower end. As will be described later, when the inner ring portion 56 of the tapered roller bearing 55 is loosely fitted to the fixed support 33 from above, if the outer diameter of the upper holding table 38 is small enough not to interfere with the inner diameter of the inner ring portion 56, the upper holding table. 38 may be integrally formed with the fixed support 33 in advance. Further, the lower holding table 40 may be integrally formed as the large diameter portion 40 integrally with the fixed support 33.
[0023]
As shown in FIGS. 9 to 11 and 13, the rectangular cylindrical rotating body 34 has an upper rectangular flange 42 (a cylindrical shaft portion 42 a protruding downward and a bolt hole 42 b as a shaft member) on the upper portion of the rectangular cylindrical body 41. And a lower quadrangular ring-shaped flange 43 (the cross section of the ring is substantially L-shaped) is welded and fixed to the inner periphery of the lower part. Further, the rectangular cylindrical rotating body 34 has a pair of bolt holes 34a at the upper end, a horizontal gate body adjusting bolt 44 is welded and fixed to the lower portion, and a pair of inner surfaces of a pair of opposite sides at the lower end. The contact portion 34b (see FIGS. 7, 8, 11, 13, and 18) is fixed.
[0024]
A self-aligning roller bearing 51 includes two rows of rollers 54 interposed between an inner ring 52 and an outer ring 53 as shown in FIGS.
11 and 17, a plurality of tapered rollers 58 are interposed between the inner ring 56 and the outer ring 57. The inner ring 56, the outer ring 57, and a plurality of tapered rollers 58 are arranged in one row. Can be decomposed appropriately.
[0025]
Of course, the self-aligning roller bearing 51 and the tapered roller bearing 55 are not limited to one each, and a plurality of either one or both may be provided.
Next, the assembly of the gate device according to the present invention will be described.
[0026]
First, the tapered roller bearing 55 is fitted and moved downward from the upper side of the fixed column 33 with respect to the fixed column 33 before the upper holding table 38 is mounted, and the inner ring 56 is moved to the second lower holding table. The 40 small-diameter portions 40a are fitted and brought into contact with each other.
[0027]
Thereafter, the upper holding base 38 is inserted into the upper end of the fixed support 33 and then fastened and fixed with bolts 45 (see FIG. 11), and the self-aligning roller bearing 51 is press-fitted into the cylindrical portion 38a of the upper holding base 38. And install.
[0028]
Subsequently, the rectangular cylindrical rotating body 34 is loosely fitted to the fixed column 33 from above the fixed column 33, and the shaft portion 42a of the upper flange 42 is press-fitted into the inner ring 52 of the self-aligning roller bearing 51. The ring-shaped L-shaped cross section of the lower flange 43 is brought into contact with the outer ring 57 of the tapered roller bearing 55. At this time, one side of the L-shaped cross section is brought into contact with the upper surface of the outer ring 57 and the other side is brought into contact with the outer peripheral surface of the outer ring 57. Next, the bolt 59 is screwed into the screw hole 38 a of the upper holding base 38 through the bolt hole 42 b of the flange 42 and fixed. Thus, the dead weight of the rectangular cylindrical rotating body 34 is held by the fixed support 33 via the two bearings 51 and 55.
[0029]
Next, as shown in FIGS. 7, 8, 14, and 15, the gate body 31 is attached to the column portion 32 as follows. A pair of bolts 60 and 61 are provided on a predetermined surface of the rectangular cylindrical rotating body 34 (on the front surface in a state where the gate body 31 is closed as shown in FIG. ) Is screwed into the screw hole 31a through the bolt hole 34a from the inside and fixed at the same time, and at the lower part, the hole 31c of the mounting plate portion 31b is loosely fitted to the gate body adjusting bolt 44 and is mounted on both sides of the mounting plate portion 31b. It is fastened and fixed by a pair of nuts 62 screwed into the bolts 44.
[0030]
Contrary to the above, the attachment plate portion 31b may be provided on the cylindrical rotating body 34 side, and the adjustment bolt 44 may be provided on the gate body 31 side.
[0031]
Therefore, the gate main body 31 is supported at three points of the pair of bolts 60 and 61 and the adjusting bolt 44 (attachment plate portion 31b). Therefore, when adjusting the level so that the upper surface of the gate body 31 extends in the horizontal direction, the adjustment bolt 44 is operated by operating the nut 62 of the adjustment bolt 44 with the bolt 61 on the gate body side slightly loosened. When the position of the attachment plate portion 31b with respect to 44 is moved and adjusted, the gate body 31 is slightly rotated in the vertical plane around the bolt 60 on the side opposite to the gate body 31 to perform the level adjustment. Thereafter, the bolt 61 and the nut 62 are tightened.
[0032]
Subsequently, the operation will be described.
In FIG. 7, when the gate main body 31 is closed, the contact portion 34 b of the pair of contact portions 34 b and 34 c of the rotating body 34 is in contact with the contact portion 40 b of the fixed column 33. Here, when the gate body 31 is rotated clockwise by approximately 180 degrees, the rotating body 34 is also rotated integrally, and as shown in FIG. 8, the other abutment portion 34c is abutted against the abutment portion 40b. Thus, the gate body 31 of FIG. 8 is in an open state.
[0033]
Next, when the gate body 31 is closed, the state shown in FIG. 7 is changed from the state shown in FIG. 8 contrary to the above case.
[0034]
At this time, in accordance with the rotation of the rotating body 34 in FIG. 11, the thrust force and the radial force of the rotating body 34 against the fixed support 33 are received by the self-aligning bearing 51 at the upper part of the apparatus, and the rotating body 34 at the lower part of the apparatus. The thrust force and radial force with respect to the fixed support 33 are received by the tapered roller bearing 55, thereby ensuring smooth rotation of the rotating body 34. In particular, the self-aligning bearing 51 can absorb the inclination of the axis of the rotating body 34 with respect to the axis of the fixed support 33.
[0035]
In the above-described embodiment, the gate body 31 is open on one side, but of course, two gate bodies 31 and two support columns 32 may be provided to open both sides.
[0036]
【The invention's effect】
The above configuration of the present invention has the following advantages.
(I) The bearings for supporting the rotation of the gate body 31 are only a total of two self-aligning roller bearings 51 and tapered roller bearings 55, and the configuration is very simple and extremely inexpensive. In addition, since only an existing bearing is used, the bearing is less likely to be worn, and the movement of the gate body 31 is less likely to be loose, which improves long-term reliability.
[0037]
(II) In order to attach these bearings 51 and 55, an upper holding base 38 and a lower holding base 40 are provided on the upper and lower portions of the fixed support 33, respectively, and the cylindrical rotating body 34 is an inner ring portion of the self-aligning bearing 51. Since only a shaft member (rectangular flange 42) having a shaft portion 42a to be fitted in 52 and a ring-shaped flange member (ring-shaped flange 43) contacting the outer ring portion 52 of the tapered roller bearing 55 need be provided, the entire mounting configuration However, the minimum number of members is sufficient, the configuration is simple, and the cost can be further reduced.
[0038]
(III) Since the gate main body 31 is directly attached to the front side of the cylindrical rotary body 34 in the closed state of the gate main body with respect to the cylindrical rotary body 34, the gate main body 31 is seen from the front side. Since the cylindrical rotating body is hidden behind the gate body and cannot be seen, the aesthetics can be improved accordingly.
[0039]
(IV) relative to the gates body 31 the cylindrical rotary member 34, attached by bolting the two locations spaced in substantially horizontal upper portion of the cylindrical rotating body, and one position of the lower portion of the cylindrical rotary member In this case, the attachment portion 31b of the gate body is attached to the cylindrical rotating body via a movement adjusting mechanism (for example, a bolt 44 and two nuts 62), so that the cylindrical rotating body 34 is supported at three points. In this state, the inclination of the upper surface level in the overhanging direction of the gate body can be adjusted by the adjustment operation of the movement adjusting mechanism. Therefore, a conventional special U-shaped plate and a horizontal convex portion (see FIG. 2) are provided to provide a level. The number of parts can be reduced and the configuration can be simplified as compared with the adjustment.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an example of a conventional gate device.
2 is an exploded perspective view of a main part of the conventional example of FIG.
FIG. 3 is a longitudinal sectional view of a main part of another example of the conventional example of FIG. 1;
4 is a cross-sectional view taken along line 4-4 in FIG.
FIG. 5 is a front view of the gate body in the closed state of the gate device according to the embodiment of the present invention.
6 is a plan view of the gate device of FIG. 5 in a closed state of the gate body.
7 is a partial cross-sectional plan view of the main part of the gate device of FIG. 5 in a closed state of the gate main body.
8 is a partial cross-sectional plan view of the main part of the gate device of FIG. 5 in the opened state of the gate body.
FIG. 9 is a plan view of the gate device of FIG. 5 in a state where the fixed support and the rotating body are assembled.
10 is a longitudinal sectional view of the gate device of FIG. 5 in a state where the fixed support and the rotating body are assembled.
11 is an enlarged vertical sectional view of a main part of the gate device of FIG. 5 in a state where the fixed support and the rotating body are assembled.
12 is a longitudinal sectional view of a fixed column of the gate device of FIG. 5. FIG.
13 is a longitudinal sectional view of a rotating body of the gate device of FIG. 5. FIG.
14 is a partial side view of the gate body of the gate device of FIG. 5. FIG.
15 is a side view showing an attachment portion between the gate main body and the rotating body of the gate device of FIG. 5. FIG.
16 is a longitudinal sectional view of a self-aligning roller bearing used in the gate device of FIG.
17 is a longitudinal sectional view of a tapered roller bearing used in the gate device of FIG.
18 is a partial cross-sectional perspective view of a main part of the gate device of FIG. 5. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 33: Fixed support | pillar 2, 34: Cylindrical rotary body 3, 31: Gate main body 4: Upper bearing 5, 5 ': Lower bearing 9: U-shaped board 10, 11: Thrust ball bearing 12: Radial ball bearing 15, 16: Cylindrical bearing part 17: Horizontal convex part 27: Roller 32: Support | pillar part 34b, 34c: 2nd contact part 35: Wall 37: Cylindrical body 38: Upper holding stand 40: Lower holding stand (large diameter part)
40a: Small diameter step portion 40a: First contact portion 41: Square tubular body 42: Upper rectangular flange 44: Gate body adjustment bolt 46: Base plate 51: Spherical roller bearing 55: Tapered roller bearings 60, 61: Bolt 62: Adjustment nut

Claims

A fixed column (33) fixedly set up with respect to the ground;
A cylindrical rotating body (34) fitted coaxially and rotatably to the fixed support column (33) via an upper first bearing and a lower second bearing, and attached to the cylindrical rotating body A gate device comprising a gate body (31) formed,
The first bearing is a self-aligning roller bearing (51), and the second bearing is a tapered roller bearing (55);
The fixed strut (33) has an upper holding base (38) for holding the outer ring portion (53) of the self-aligning roller bearing (51) at an upper portion thereof, and an inner ring portion of the tapered roller bearing (55) at a lower portion thereof. A lower holding base (40) for holding (56),
The cylindrical rotating body (34) has a shaft portion (42a) fitted and fixed to the inner ring portion (52) of the self-aligning roller bearing (51) from above on the upper portion thereof. And a ring-shaped member (43) fixed to the cylindrical rotating body so as to abut on an outer ring portion (57) of the tapered roller bearing (55) at the lower part thereof from above. And having
A gate device characterized by that.

The gate device according to claim 1,
The upper holding base (38) is formed integrally or as a separate member on the upper part of the fixed support column and has a cylindrical portion (38a), and the self-aligning roller is provided in the cylindrical portion (38a). A gate device characterized in that an outer ring portion (53) of a bearing (51) is stored and held.

The gate device according to claim 1 or 2,
The lower holding base (40) is a large-diameter portion (40) formed integrally or as a separate member on the outer periphery of the lower portion of the fixed support column, and a small-diameter step portion provided on the upper portion of the large-diameter portion (40) ( 40a), the inner ring portion (56) of the tapered roller bearing (55) is fitted into the gate device.

The gate device according to any one of claims 1 to 3,
The ring-shaped member (43) has a substantially L-shaped cross section, one side of the L-shape is on the upper surface of the tapered roller bearing outer ring portion (57), and the other side of the L-shaped is the tapered roller bearing outer ring portion. A gate device characterized by contacting the outer peripheral surface of (57).

The gate device according to any one of claims 1 to 4,
The fixed support (33) and the cylindrical rotating body (34) are provided with first and second contact portions (40b; 34b), respectively, and the gate body (31) and the cylindrical rotating body (34). As the body integrally rotates by a predetermined angle, the first and second contact portions (40b; 34b) contact each other at both ends of the rotation range, and the gate body (31) is opened and closed. A gate device characterized by regulating a limit position of a state.

The gate device according to claim 5,
The gate body (31) is attached to the cylindrical rotating body (34) directly on the front side of the cylindrical rotating body (34) when the gate body (31) is closed. A gate device characterized by that.

The gate device according to any one of claims 1 to 6,
The gate main body (31) is attached to the cylindrical rotating body (34) by tightening bolts (60, 61) at two positions spaced apart in the substantially horizontal direction at the upper part of the cylindrical rotating body (34), and attached to the cylindrical rotary member attachment portion of該門door body (31) in one place in the lower (31b) via a movement adjustment mechanism (44, 62) of the cylindrical rotary member (34) (34) The gate main body (31) is adjusted by the movement adjusting mechanism (44, 62) in a state where the gate main body (31) is supported at three points by the three positions with respect to the cylindrical rotating body (34). A gate device characterized by being capable of adjusting the inclination of the upper surface level in the overhang direction.

The gate device according to claim 7,
The attachment portion (31b) is an attachment plate portion (31b), and the movement adjustment mechanism (44, 62) is fixed to the cylindrical rotating body (34) and extends in a substantially horizontal direction to attach the attachment plate portion ( 31b) A gate device comprising a bolt (44) penetrating 31b) and at least one pair of nuts (62) screwed to the bolt.