JP4212908B2

JP4212908B2 - Handrail entrance safety device for passenger conveyors

Info

Publication number: JP4212908B2
Application number: JP2003017264A
Authority: JP
Inventors: 大介千村
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2003-01-27
Filing date: 2003-01-27
Publication date: 2009-01-21
Anticipated expiration: 2023-01-27
Also published as: JP2004224553A

Description

【０００１】
【発明の属する技術分野】
この発明は、乗客コンベアの手摺侵入口の安全装置に関するものである。
【０００２】
【従来の技術】
従来の乗客コンベアにおいては、移動手摺は、欄干の一端部で欄干基部から出て、欄干の外周部に配設されたガイドレールに案内されて欄干の長手方向に移動し、欄干の他端部で欄干基部に形成された開口部から欄干基部内に侵入する。そして、欄干基部の開口部周りが外力を受けて変形する構成とされ、さらにこの開口部周りの変形を検出するスイッチを備え、障害物が開口部に挟まれた際の変形をスイッチで検出し、乗客コンベアを非常停止するようにしている。この時、移動手摺の外周に対向する開口端部に変形し易い薄肉部を設け、移動手摺と開口端部との間で障害物の侵入物を圧迫し難くしている。（例えば、特許文献１参照）
【０００３】
【特許文献１】
特開昭６１−１１９５８５号公報（図１）
【０００４】
【発明が解決しようとする課題】
この従来の乗客コンベアの手摺侵入口安全装置は、移動手摺の外周に対向する開口端部の剛性を他の部位に対して下げているため、障害物が挟まれた際に、開口端部のみが内側に曲がってしまい、開口部周りの変形を検出するスイッチが作動せず、乗客コンベアが非常停止しなくなる恐れがあるという不具合があった。また、開口端部の剛性を下げているので、障害物が奥深く挟まれてスイッチが作動することになり、挟まれた障害物を解放するには欄干基部の開口部周りを切断しなければならなくなり、経済的ではなく、復旧までの時間も長くなるという不具合もあった。
【０００５】
この発明は、上記の課題を解消するためになされたもので、乗客コンベアの停止時には保護体の少なくとも反インレット側を周方向に分離可能にし、かつ、乗客コンベアの運転時には保護体の相対する分離面を強制的に結合一体化させるように構成し、障害物が挟まった際の乗客コンベアの停止を確実とし、保護体を分離して障害物を速やかに解放できるようにした乗客コンベアの手摺侵入口安全装置を提供するものである。
【０００６】
【課題を解決するための手段】
この発明に係る乗客コンベアの手摺侵入口安全装置は、移動手摺が侵入する開口部を有する欄干のインレットと、上記開口部の内形に沿った外形形状に形成され、一端を上記開口部内に位置させて上記移動手摺に遊嵌状態に外嵌され、上記開口部から所定量突出した正常位置と該上記開口部内に所定量埋没した異常発生位置との間を進退自在に、かつ、少なくとも反インレット側が周方向に分離可能に構成された断面Ｃ状の保護体と、上記保護体を上記正常位置側に付勢するバネ部材と、上記保護体が上記異常発生位置になったときに作動する異常検出手段と、上記保護体の相対する分離面を互いに引き寄せる力を発生する係合手段と、上記異常検出手段の非作動時には、上記係合手段を駆動して上記引き寄せる力を発生させて相対する上記分離面を結合一体化させ、上記異常検出手段の作動時には、乗客コンベアを停止するとともに、上記係合手段の駆動を停止して上記引き寄せる力を消失させて上記保護体を周方向に分離可能にする制御装置とを備えたものである。
【０００７】
【発明の実施の形態】
以下、この発明の実施の形態を図について説明する。
実施の形態１．
図１はこの発明の実施の形態１に係る乗客コンベアの欄干端部を示す要部側面図、図２は図１のＡ部周りを示す断面図、図３はこの発明の実施の形態１に係る乗客コンベアの手摺侵入口安全装置周りを示す正面図、図４および図５はそれぞれこの発明の実施の形態１に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
【０００８】
各図において、欄干１は、乗客コンベアの踏段や踏板（図示せず）の両側に設置され、その上部にはガイドレール２が形成され、欄干１のインレット３には後述する保護体６の外形形状に沿って開口する開口部３ａが形成されている。そして、移動手摺４は、断面Ｃ状をなす無端状に形成され、ガイドレール２に案内されて矢印Ｂで示す運転方向（欄干１の長手方向）に移動し、乗降口でインレット３の開口部３ａから欄干１内部に入り込むようになっている。さらに、手摺侵入口安全装置５が欄干１のインレット３に装着されている。
【０００９】
この手摺侵入口安全装置５は、運転方向に正常位置と異常発生位置との間を往復移動可能にインレット３に装着された保護体６と、保護体６が正常位置から異常発生位置に到達したときに作動する異常検出手段としてのスイッチ１１と、保護体６をスイッチ１１から離反する正常位置に復帰するように付勢するバネ部材としての圧縮コイルバネ１２と、スイッチ１１の作動により乗客コンベアを非常停止する制御装置１３とを備えている。
【００１０】
保護体６は、ゴム等の弾性材料で作製され、移動手摺４の外形形状に沿った内形形状を有する断面Ｃ状に形成されている。そして、この保護体６は、図３および図４に示されるように、周方向の中央位置で、他端から一端側に至るように分割されている。これにより、保護体６は、第１保護体辺６ａと第２保護体辺６ｂとが連結部６ｃを支点として周方向に開脚・閉脚可能となっている。さらに、電磁石１４が第１保護体辺６ａの分割端面（分離面）に配設され、磁性金属板１５が第２保護体辺６ｂの分割端面（分離面）に配設されている。電磁石１４と磁性金属板１５とは、結合手段を構成し、第１および第２保護体辺６ａ、６ｂの分割端面同士を結合させたときに、相対する位置関係になっている。
【００１１】
この保護体６は、移動手摺４に遊嵌状態に外嵌され、その一端（連結部６ｃ側）が開口部３ａ内に挿入されている。そして、フランジ７が保護体６の一端に取り付けられている。また、取付板８がフランジ７に相対するように欄干１内に配設されている。そして、フランジ７に立設された取付棒９が、取付板８に摺動可能に挿通され、ストッパ１０が取付棒９の取付板８からの延出部に取り付けられている。さらに、圧縮コイルバネ１２が取付棒９に装着されて取付板８とフランジ７との間に縮設され、保護体６を取付板８から離反する方向に付勢している。
【００１２】
スイッチ１１は、作動部１１ａをフランジ７に対向させて取付板８に取り付けられ、フランジ７が取付板８に接近したときに作動するように構成されている。また、制御装置１３は、信号線１６ａ、１６ｂを介して電磁石１４およびスイッチ１１に電気的に接続されている。
【００１３】
つぎに、この手摺侵入口安全装置５の動作について説明する。
まず、制御装置１３は、信号線１６ｂを介してスイッチ１１の動作状態をモニターしている。そして、通常時には、保護体６は、圧縮コイルバネ１２の付勢力により、開口部３ａから延出する方向に、ストッパ１０が取付板８に当接するまで移動している。この位置が、保護体６が開口部３ａから所定量突出した正常位置となる。この時、フランジ７がスイッチ１１の作動棒１１ａから離反している。そこで、制御装置１３は、スイッチ１１の非動作を認識し、信号線１６ａを介して電磁石１４に電力を供給する。これにより、電磁石１４は磁気吸引力を発生し、磁性金属板１５を磁気吸引して、第１および第２保護体辺６ａ、６ｂが連結部６ｃを支点として閉脚し、両者の分離面同士が接合一体化される。
【００１４】
そして、移動手摺４は、ガイドレール２に案内されて矢印Ｂで示す運転方向に移動し、乗降口でインレット３の開口部３ａから欄干１内部に入り込む。この時、保護体６は、遊嵌状態に移動手摺４に外嵌されているので、移動手摺４の移動力は保護体６に作用せず、正常位置に維持される。
ここで、障害物が移動手摺４と保護体６との間に挟まれると、保護体６は移動手摺４の移動力により圧縮コイルバネ１２の付勢力に抗して開口部３ａ内に引き込まれる。そして、フランジ７が作動棒１１ａに当接すると、制御装置１３がスイッチ１１の作動状態を認識し、乗客コンベアを停止させる。同時に、制御装置１３は、信号線１６ａを介しての電磁石１４への電力の供給を停止する。これにより、電磁石１４の磁気吸引力がなくなり、電磁石１４と磁性金属板１５との結合が解除され、保護体６の第１および第２保護体辺６ａ、６ｂが連結部６ｃを支点として開脚（分離）可能となる。そこで、第１および第２保護体辺６ａ、６ｂを周方向に開脚させて、障害物を解放することができる。
なお、フランジ７が作動棒１１ａに当接する位置が、保護体６が開口部３ａ内に所定量埋没した異常発生位置となる。
【００１５】
このように、この実施の形態１によれば、保護体６が正常位置と異常発生位置との間を移動可能にインレット３に装着され、スイッチ１１が保護体６の異常発生位置で動作するように配設されている。そして、保護体６が連結部６ｃを支点として第１および第２保護体辺６ａ、６ｂを開閉脚可能に構成され、電磁石１４を第１保護体辺６ａの分離面に配設し、磁性金属板１５を第２保護体辺６ｂの分離面に配設している。さらに、スイッチ１１の非動作時には、制御装置１３が電磁石１４に電力を供給して磁性金属板１５を磁気吸引させて連結部６ｃを支点として第１および第２保護体辺６ａ、６ｂを閉脚（結合）させ、スイッチ１１の動作時には、制御装置１３が乗客コンベアを停止するとともに、電磁石１４への電力の供給を停止して電磁石１４の磁気吸引力を消失させ、第１および第２保護体辺６ａ、６ｂを開脚（分離）可能にしている。
そこで、障害物が保護体６と移動手摺４との間に挟まれると、保護体６は正常位置から異常発生位置に速やかに移動し、スイッチ１１が動作して乗客コンベアを停止できる。同時に、保護体６の第１および第２保護体辺６ａ、６ｂが分離可能となり、障害物が容易に引き抜け、被害者の苦痛が軽減できる。
また、保護体６を切断する必要がなく、障害物を解放した後、電磁石１４に電力を供給することで、乗客コンベアの運転を再開できるので、経済的であるとともに、復旧までの時間を極めて短くできる。
【００１６】
なお、上記実施の形態１では、電磁石１４を第１保護体辺６ａの分離面に配設し、磁性金属板１５を第２保護体辺６ｂの分離面に配設するものとしているが、電磁石１４を第１および第２保護体辺６ａ、６ｂの分離面にそれぞれ配設し、通常時には両電磁石１４に磁気吸引力を発生させるように電力を供給し、異常発生時には両電磁石１４に磁気反発力を発生させるように電力を供給するようにしてもよい。この場合、異常発生がスイッチ１１で検知されると、保護体６の第１および第２保護体６ａ、６ｂが自ずと分離され、挟まれた障害物が速やかに解放される。
また、上記実施の形態１では、電磁石１４と磁性金属板１５との組み合わせにより結合手段を構成するものとしているが、結合手段は、第１および第２保護体辺６ａ、６ｂの結合・結合解除をできるものであればよく、例えば第１保護体辺６ａに吸引孔を穿設し、第２保護体辺６ｂの分離面に吸引板を配設し、真空ポンプを用いて、吸引孔を介して吸引板を吸引するようにしたものでもよい。
【００１７】
実施の形態２．
図６はこの発明の実施の形態２に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
図６において、保護体２０は、ゴム等の弾性材料で作製され、移動手摺４の外形形状に沿った内形形状を有する断面Ｃ状に形成されている。そして、この保護体２０は、周方向の中央位置で、第１分割保護体２０ａと第２分割保護体２０ｂとに２分割されている。また、電磁石１４が第１分割保護体２０ａの分離面に配設され、磁性金属板１５が第２分割保護体２０ｂの分離面に配設されている。
なお、保護体６に代えて保護体２０を用いている点を除いて、上記実施の形態１と同様に構成されている。
【００１８】
この実施の形態２では、スイッチ１１の非動作時には、電磁石１４に電力を供給して磁性金属板１５を磁気吸引させて第１および第２分割保護体２０ａ、２０ｂを結合一体化させ、スイッチ１１の動作時には、電磁石１４への電力の供給を停止して、電磁石１４の磁気吸引力を消失させ、第１および第２分割保護体２０ａ、２０ｂの結合を解除、つまり分離可能にしている。
従って、この実施の形態２においても、上記実施の形態１と同様の効果が得られる。
【００１９】
実施の形態３．
図７はこの発明の実施の形態３に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
図７において、保護体２１は、ゴム等の弾性材料で作製され、移動手摺４の外形形状に沿った内形形状を有する断面Ｃ状に形成されている。そして、この保護体２１は、周方向に、第１分割保護体２１ａ、第２分割保護体２１ｂおよび第３分割保護体２０ｃに３分割されている。さらに、電磁石１４が第１分割保護体２１ａおよび第３分割保護体２１ｃの各分離面に配設され、磁性金属板１５（図示せず）が第２分割保護体２１ｂの両分離面に配設されている。
なお、保護体２０に代えて保護体２１を用いている点を除いて、上記実施の形態２と同様に構成されている。
【００２０】
この実施の形態３では、スイッチ１１の非動作時には、電磁石１４に電力を供給して磁性金属板１５を磁気吸引させて第１、第２および第３分割保護体２１ａ、２１ｂ、２１ｃを結合一体化させ、スイッチ１１の動作時には、電磁石１４への電力の供給を停止して、電磁石１４の磁気吸引力を消失させ、保護体２１を、第１、第２および第３分割保護体２１ａ、２１ｂ、２１ｃに分割可能にしている。
従って、この実施の形態３においても、上記実施の形態２と同様の効果が得られる。
【００２１】
なお、上記実施の形態３では、保護体２１を３分割するものとしているが、保護体を４以上に分割するようにしてもよい。
【００２２】
実施の形態４．
図８はこの発明の実施の形態４に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
図８において、保護体６Ａは、ゴム等の弾性材料で作製され、移動手摺４の外形形状に沿った内形形状を有する断面Ｃ状に形成されている。そして、この保護体６Ａは、周方向の中央位置で、他端から一端側に至るように分割されている。これにより、保護体６Ａは、第１保護体辺６ａと第２保護体辺６ｂとが連結部６ｃ（図示せず）を支点として周方向に開脚・閉脚可能となっている。また、電磁石１４が第１保護体辺６ａの分離面に配設され、磁性金属板１５が第２保護体辺６ｂの分離面に配設されている。さらに、位置決めピン２２が第２保護体辺６ｂの分離面の他端縁部に立設され、ガイド穴２３が第１保護体編ａの分離面の他端縁部に位置決めピン２２に相対するように形成されている。この保護体６Ａは、上記実施の形態１における保護体６に位置決めピン２２とガイド穴２３とからなる位置決め機構を設けたものである。
【００２３】
この実施の形態４は、保護体６に代えて保護体６Ａを用いている点を除いて上記実施の形態１と同様に構成されている。そこで、この実施の形態４においても、上記実施の形態１と同様の効果が得られる。
この実施の形態４では、連結部を支点として第１および第２保護体辺６ａ、６ｂを閉脚したときに、位置決めピン２２がガイド穴２３に挿入されて、第１および第２保護体辺６ａ、６ｂが閉脚される。従って、第１および第２保護体辺６ａ、６ｂは高精度に位置決めされて閉脚状態となり、電磁石１４と磁性金属板１５との結合位置が高精度に保たれ、第１および第２保護体辺６ａ、６ｂの閉脚状態の保持力が大きくなる。
【００２４】
なお、上記実施の形態４では、位置決めピン２２とガイド穴２３とを第１および第２保護体辺６ａ、６ｂの分離面の他端縁部に設けるものとしているが、位置決めピン２２とガイド穴２３とは第１および第２保護体辺６ａ、６ｂの分離面のいずれの位置に設けてもよい。
また、上記実施の形態４では、位置決めピン２２とガイド穴２３との一対を第１および第２保護体辺６ａ、６ｂの分離面に設けるものとしているが、位置決めピン２２とガイド穴２３とを複数対設けてもよい。この場合、第１および第２保護体辺６ａ、６ｂはさらに高精度に位置決めされて閉脚状態となり、電磁石１４と磁性金属板１５との結合位置精度が高められる。
【００２５】
実施の形態５．
図９はこの発明の実施の形態５に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
図９において、保護体６Ｂは、係合突起２４が第１保護体辺６ａの分離面の外周縁部を枠状に切り落として形成され、係合凹部２５が第２保護体辺６ｂの分離面の外周縁部を枠状に突出させて形成されている。そして、係合突起２４と係合凹部２５とは印ろう構造をとる形状に形成されている。
なお、位置決め機構を位置決めピン２２とガイド穴２３とに代えて係合突起２４と係合凹部２５とで構成している点を除いて、上記実施の形態４と同様に構成されている。
【００２６】
この実施の形態５においても、連結部６ｃを支点として第１および第２保護体辺６ａ、６ｂを閉脚したときに、係合突起２４が係合凹部２５に嵌合されて、第１および第２保護体辺６ａ、６ｂが閉脚される。従って、第１および第２保護体辺６ａ、６ｂは高精度に位置決めされて閉脚状態となり、電磁石１４と磁性金属板１５との結合位置が高精度に保たれ、第１および第２保護体辺６ａ、６ｂの閉脚状態の保持力が大きくなる。
【００２７】
実施の形態６．
図１０はこの発明の実施の形態６に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
図１０において、保護体６Ｃは、クリップ２６が第２保護体辺６ｂの他端外周縁部から分離面の外方に延設され、係合凹部２７が第１保護体辺６ａの他端外周縁部の分離面近傍に凹設されている。そして、内周側に凸状の断面円弧状の係合凸部２６ａがクリップ２６の先端部に形成されている。
なお、この保護体６Ｃは、上記実施の形態１における保護体６にクリップ２６および係合凹部２７を形成したものである。
【００２８】
つぎに、この実施の形態６の動作について説明する。
まず、電磁石１４への電力が供給され、磁気吸引力が発生すると、第１および第２保護体６ａ、６ｂが連結部６ｃを支点として閉脚動作を開始する。そして、係合突起２６ａの先端が第１保護体辺６ａの分離面に当接する。そこで、係合突起２６ａが断面円弧状に形成されているので、係合突起２６ａと分離面との係合によりクリップ２６を外周側に押圧する力が発生し、クリップ２６が弾性変形し、係合突起２６ａが第１保護体辺６ａの外周に乗り上げ、ついには係合突起２６ａが係合凹部２７に嵌合する。そこで、乗客コンベアの電源遮断時、電磁石１４への電力の供給が停止されても、第１および第２保護体辺６ａ、６ｂの閉脚状態が維持される。
【００２９】
そして、障害物が挟まると、スイッチ１１が動作し、乗客コンベアが停止される。そこで、第１および第２保護体辺６ａ、６ｂを開脚する方向に押し広げると、係合凹部２７の分離面側の縁部が係合突起２６ａの断面円弧状の内周面上を摺動し、係合突起２６ａが係合凹部２７内から排出され、ついには係合突起２６ａと係合凹部２７との係合状態が解除される。そして、第１および第２保護体辺６ａ、６ｂが連結部６ｃを支点として開脚され、挟まった障害物が解放される。
【００３０】
ここで、クリップ２６および係合凹部２７が形成されていない場合には、乗客コンベアの電源遮断時、電磁石１４への電力の供給が停止されると、第１および第２保護体辺６ａ、６ｂの閉脚状態の保持力がなくなる。そこで、連結部６ｃを支点として第１および第２保護体辺６ａ、６ｂが自然に開脚したり、ずれたりしてしまう。その結果、乗客コンベアを再起動するたびに、保護体６の開閉脚状態をチェックし、第１および第２保護体辺６ａ、６ｂが開脚やずれたりしてれば、第１および第２保護体辺６ａ、６ｂの位置決め調整を行って閉脚させる必要があり、運転再開までの時間がかかってしまう。
【００３１】
しかし、この実施の形態６によれば、電磁石１４への電力の供給が停止されても、第１および第２保護体辺６ａ、６ｂの閉脚状態が係合突起２６ａと係合凹部２７との嵌合により維持されるので、乗客コンベアの再起動のたびに、保護体の開閉脚状態のチェック作業、第１および第２保護体辺６ａ、６ｂの位置決め調整作業が不要となり、速やかに運転再開できる。
また、係合突起２６ａが断面円弧状に形成されているので、比較的弱い力で係合突起２６ａと係合凹部２７との係合状態を解除できる。そこで、障害物が挟まった場合でも、比較的弱い力で挟まった障害物を速やかに解放できる。
【００３２】
実施の形態７．
図１１はこの発明の実施の形態７に係る乗客コンベアの手摺侵入口安全装置の保護体の要部を示す側面図である。
図１１において、保護体６Ｄは、クリップ２８が第２保護体辺６ｂの他端外周縁部から分離面の外方に延設され、係合凹部２９が第１保護体辺６ａの他端外周縁部の分離面近傍に凹設されている。そして、クリップ２８の先端部に形成された係合凸部２８ａは、内周側に凸状であり、その内周面は、先端から根元側に向かって、漸次外周側に向かう傾斜面に形成されている。さらに、係合突起２８ａの先端の端面は第２保護体辺６ｂの分離面と略平行となっている。また、係合凹部２９は、係合突起２８ａの外形形状に沿った内形形状に形成されている。
なお、この保護体６Ｄは、上記実施の形態６におけるクリップ２６および係合凹部２７に代えてクリップ２８および係合凹部２９を形成したものである。
【００３３】
つぎに、この実施の形態７の動作について説明する。
まず、電磁石１４への電力が供給され、磁気吸引力が発生すると、第１および第２保護体６ａ、６ｂが連結部６ｃを支点として閉脚動作を開始する。そして、係合突起２８ａの先端が第１保護体辺６ａの分離面に当接する。そこで、係合突起２６ａの先端端面が第２保護体辺６ｂの分離面と略平行に形成されているので、係合突起２８ａと第１保護体辺６ａの分離面との係合によりクリップ２８を外周側に押圧する力は発生せず、係合突起２８ａと係合凹部２９との嵌合は実現されない。
そこで、人力によりクリップ２８の先端側を外周側に押圧し、クリップ２８を弾性変形させて係合突起２８ａを第１保護体辺６ａの外周に乗り上げさせる。この後、電磁石１４の磁気吸引力により、第１および第２保護体辺６ａ、６ｂが連結部６ｃを支点として閉脚し、ついには係合突起２８ａと係合凹部２９とが嵌合する。そこで、乗客コンベアの電源遮断時、電磁石１４への電力の供給が停止されても、第１および第２保護体辺６ａ、６ｂの閉脚状態が維持される。
【００３４】
そして、障害物が挟まると、スイッチ１１が動作し、乗客コンベアが停止される。そこで、第１および第２保護体辺６ａ、６ｂを開脚する方向に押し広げると、係合凹部２９の分離面側の縁部が係合突起２８ａの傾斜面（内周面）上を摺動し、係合突起２８ａが係合凹部２９内から排出され、ついには係合突起２８ａと係合凹部２９との係合状態が解除される。そして、第１および第２保護体辺６ａ、６ｂが連結部６ｃを支点として開脚され、挟まった障害物が解放される。
【００３５】
従って、この実施の形態７においても、電磁石１４への電力の供給が停止されても、第１および第２保護体辺６ａ、６ｂの閉脚状態が係合突起２８ａと係合凹部２９との嵌合により維持されるので、乗客コンベアの再起動のたびに、保護体の開閉脚状態のチェック作業、第１および第２保護体辺６ａ、６ｂの位置決め調整作業が不要となり、速やかに運転再開できる。
また、係合突起２８ａの内周面が、先端から根元側に向かって、漸次外周側に向かう傾斜面に形成されているので、比較的弱い力で係合突起２８ａと係合凹部２９との係合状態を解除できる。そこで、障害物が挟まった場合でも、比較的弱い力で挟まった障害物を速やかに解放できる。
【００３６】
さらに、係合突起２８ａの先端端面が、第２保護体辺６ｂの分離面に略平行に形成されているので、第１および第２保護体辺６ａ、６ｂを閉脚しようとしても、係合突起２８ａの先端端面が第１保護体辺６ａの分離面に当接し、第１および第２保護体辺６ａ、６ｂの開脚状態が維持される。そこで、障害物が挟まれた際に、乗客が自力で第１および第２保護体辺６ａ、６ｂを開脚して障害物を解放した場合、第１および第２保護体辺６ａ、６ｂの開脚状態が維持される。その結果、後から係員が現場に到着したとき、乗客コンベアの非常停止が手摺侵入口安全装置の作動によるものであることを特定することができる。
【００３７】
なお、上記実施の形態４〜７では、上記実施の形態１の保護体６に適用するものとして説明しているが、上記実施の形態２又は３の保護体２０、２１に適用してもよいことはいうまでもないことである。
【００３８】
【発明の効果】
この発明は、以上説明したように、移動手摺が侵入する開口部を有する欄干のインレットと、上記開口部の内形に沿った外形形状に形成され、一端を上記開口部内に位置させて上記移動手摺に遊嵌状態に外嵌され、上記開口部から所定量突出した正常位置と該上記開口部内に所定量埋没した異常発生位置との間を進退自在に、かつ、少なくとも反インレット側が周方向に分離可能に構成された断面Ｃ状の保護体と、上記保護体を上記正常位置側に付勢するバネ部材と、上記保護体が上記異常発生位置になったときに作動する異常検出手段と、上記保護体の相対する分離面を互いに引き寄せる力を発生する係合手段と、上記異常検出手段の非作動時には、上記係合手段を駆動して上記引き寄せる力を発生させて相対する上記分離面を結合一体化させ、上記異常検出手段の作動時には、乗客コンベアを停止するとともに、上記係合手段の駆動を停止して上記引き寄せる力を消失させて上記保護体を周方向に分離可能にする制御装置とを備えているので、障害物が挟まった際の乗客コンベアの停止を確実とし、保護体を分離して障害物を速やかに解放できるようにした乗客コンベアの手摺侵入口安全装置が得られる。
【図面の簡単な説明】
【図１】この発明の実施の形態１に係る乗客コンベアの欄干端部を示す要部側面図である。
【図２】図１のＡ部周りを示す断面図である。
【図３】この発明の実施の形態１に係る乗客コンベアの手摺侵入口安全装置周りを示す正面図である。
【図４】この発明の実施の形態１に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
【図５】この発明の実施の形態１に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
【図６】この発明の実施の形態２に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
【図７】この発明の実施の形態３に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
【図８】この発明の実施の形態４に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
【図９】この発明の実施の形態５に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
【図１０】この発明の実施の形態６に係る乗客コンベアの手摺侵入口安全装置の保護体を示す斜視図である。
【図１１】この発明の実施の形態７に係る乗客コンベアの手摺侵入口安全装置の保護体の要部を示す側面図である。
【符号の説明】
１欄干、３インレット、３ａ開口部、４移動手摺、６、６Ａ、６Ｂ、６Ｃ、６Ｄ、２０、２１保護体、１１スイッチ（異常検出手段）、１２圧縮コイルバネ（バネ部材）、１３制御装置、１４電磁石（係合手段）、１５磁性金属板（係合手段）、２２位置決めピン（位置決め機構）、２３ガイド穴（位置決め機構）、２４係合突起（位置決め機構）、２５係合凹部（位置決め機構）、２６クリップ、２６ａ係合突起、２７係合凹部、２８クリップ、２８ａ係合突起、２９係合凹部。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a safety device for a handrail entrance of a passenger conveyor.
[0002]
[Prior art]
In the conventional passenger conveyor, the moving handrail exits from the balustrade base at one end of the balustrade and moves in the longitudinal direction of the balustrade, guided by a guide rail disposed on the outer periphery of the balustrade, and the other end of the balustrade Intrudes into the balustrade base from the opening formed in the balustrade base. The balustrade base is configured to be deformed by receiving an external force around the opening of the balustrade base, and further includes a switch for detecting deformation around the opening, and the deformation when the obstacle is sandwiched between the openings is detected by the switch. The passenger conveyor is trying to make an emergency stop. At this time, an easily deformable thin portion is provided at the opening end facing the outer periphery of the moving handrail, and it is difficult to press the obstacle intruder between the moving handrail and the opening end. (For example, see Patent Document 1)
[0003]
[Patent Document 1]
JP 61-119585 A (FIG. 1)
[0004]
[Problems to be solved by the invention]
In this conventional handrail entrance safety device for passenger conveyors, the rigidity of the opening end facing the outer periphery of the moving handrail is lowered relative to other parts, so that when the obstacle is caught, only the opening end Is bent inward, the switch for detecting deformation around the opening does not operate, and there is a problem that the passenger conveyor may not stop emergency. In addition, since the rigidity of the opening end is lowered, the obstacle is deeply pinched and the switch is operated, and in order to release the pinched obstacle, it is necessary to cut around the opening of the balustrade base There was also a problem that it was not economical and the time to recovery became longer.
[0005]
The present invention has been made to solve the above-described problems. At the time when the passenger conveyor is stopped, at least the side opposite to the inlet of the protector can be separated in the circumferential direction, and when the passenger conveyor is operated, the protector is opposed to each other. Passenger conveyor handrail intrusion that is constructed so that the surfaces are forcibly joined and integrated, ensuring that the passenger conveyor stops when an obstacle is caught, and that the barrier is separated and the obstacle can be released quickly An oral safety device is provided.
[0006]
[Means for Solving the Problems]
A handrail entrance safety device for a passenger conveyor according to the present invention is formed in an outer shape of a balustrade inlet having an opening into which a moving handrail enters, and an inner shape of the opening, and one end is positioned in the opening. The movable handrail is externally fitted in a loosely fitted state, and is movable between a normal position protruding from the opening by a predetermined amount and an abnormality occurrence position buried in the opening by a predetermined amount, and at least anti-inlet. A C-shaped protective body whose side is separable in the circumferential direction, a spring member that urges the protective body toward the normal position, and an abnormality that operates when the protective body is in the abnormal position The detecting means, the engaging means for generating a force for pulling the opposing separation surfaces of the protector together, and the engaging means are driven to generate the pulling force when the abnormality detecting means is inoperative. the above The separation surfaces are combined and integrated, and when the abnormality detecting means is operated, the passenger conveyor is stopped, and the driving of the engaging means is stopped to eliminate the pulling force so that the protective body can be separated in the circumferential direction. And a control device.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a side view of a main part showing a balustrade end portion of a passenger conveyor according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view showing a portion A in FIG. 1, and FIG. 3 is Embodiment 1 of the present invention. The front view which shows the handrail entrance safety device periphery of the passenger conveyor which concerns, FIG. 4 and FIG. 5 are perspective views which respectively show the protection body of the handrail entrance safety device of the passenger conveyor which concerns on Embodiment 1 of this invention.
[0008]
In each figure, a balustrade 1 is installed on both sides of a step or a step board (not shown) of a passenger conveyor, a guide rail 2 is formed on the upper part thereof, and an outer shape of a protective body 6 to be described later is provided in an inlet 3 of the balustrade 1. An opening 3a that opens along the shape is formed. The moving handrail 4 is formed in an endless shape having a C-shaped cross section, is guided by the guide rail 2 and moves in the driving direction indicated by the arrow B (longitudinal direction of the balustrade 1), and the opening of the inlet 3 at the entrance / exit It enters into the inside of the balustrade 1 from 3a. Further, a balustrade entrance safety device 5 is attached to the inlet 3 of the balustrade 1.
[0009]
The handrail entrance safety device 5 includes a protector 6 attached to the inlet 3 so as to be reciprocally movable between a normal position and an abnormality occurrence position in the driving direction, and the protection body 6 has reached the abnormality occurrence position from the normal position. The switch 11 as an abnormality detecting means that operates sometimes, the compression coil spring 12 as a spring member that urges the protector 6 to return to the normal position away from the switch 11, and the operation of the switch 11 And a control device 13 for stopping.
[0010]
The protector 6 is made of an elastic material such as rubber, and is formed in a cross-sectional C shape having an inner shape along the outer shape of the moving handrail 4. As shown in FIGS. 3 and 4, the protector 6 is divided so as to reach the one end side from the other end at the center position in the circumferential direction. Thereby, the protector 6 can open and close the leg in the circumferential direction with the first protector side 6a and the second protector side 6b as the fulcrum. Further, the electromagnet 14 is disposed on the divided end surface (separation surface) of the first protective body side 6a, and the magnetic metal plate 15 is disposed on the divided end surface (separation surface) of the second protective body side 6b. The electromagnet 14 and the magnetic metal plate 15 constitute a coupling means, and are in a relative positional relationship when the divided end faces of the first and second protective body sides 6a and 6b are coupled to each other.
[0011]
The protector 6 is externally fitted to the movable handrail 4 in a loosely fitted state, and one end thereof (the connecting part 6c side) is inserted into the opening 3a. A flange 7 is attached to one end of the protector 6. Further, the mounting plate 8 is disposed in the balustrade 1 so as to face the flange 7. A mounting rod 9 erected on the flange 7 is slidably inserted into the mounting plate 8, and a stopper 10 is mounted on an extension portion of the mounting rod 9 from the mounting plate 8. Further, a compression coil spring 12 is mounted on the mounting rod 9 and is contracted between the mounting plate 8 and the flange 7 to urge the protector 6 in a direction away from the mounting plate 8.
[0012]
The switch 11 is attached to the mounting plate 8 with the operating portion 11 a facing the flange 7, and is configured to operate when the flange 7 approaches the mounting plate 8. The control device 13 is electrically connected to the electromagnet 14 and the switch 11 via signal lines 16a and 16b.
[0013]
Next, the operation of the handrail entrance safety device 5 will be described.
First, the control device 13 monitors the operating state of the switch 11 via the signal line 16b. In the normal state, the protector 6 is moved by the urging force of the compression coil spring 12 in the direction extending from the opening 3 a until the stopper 10 abuts the mounting plate 8. This position is a normal position where the protector 6 protrudes from the opening 3a by a predetermined amount. At this time, the flange 7 is separated from the operating rod 11 a of the switch 11. Therefore, the control device 13 recognizes the non-operation of the switch 11 and supplies power to the electromagnet 14 via the signal line 16a. As a result, the electromagnet 14 generates a magnetic attractive force, magnetically attracts the magnetic metal plate 15, the first and second protective body sides 6a and 6b are closed with the connecting portion 6c as a fulcrum, and the separation surfaces of the two are separated from each other. Bonded and integrated.
[0014]
The moving handrail 4 is guided by the guide rail 2 and moves in the driving direction indicated by the arrow B, and enters the inside of the balustrade 1 from the opening 3a of the inlet 3 at the entrance / exit. At this time, since the protection body 6 is externally fitted to the moving handrail 4 in the loosely fitted state, the moving force of the moving handrail 4 does not act on the protection body 6 and is maintained at the normal position.
Here, when the obstacle is sandwiched between the moving handrail 4 and the protective body 6, the protective body 6 is pulled into the opening 3 a against the urging force of the compression coil spring 12 by the moving force of the moving handrail 4. When the flange 7 comes into contact with the operating rod 11a, the control device 13 recognizes the operating state of the switch 11 and stops the passenger conveyor. At the same time, the control device 13 stops supplying electric power to the electromagnet 14 via the signal line 16a. Thereby, the magnetic attractive force of the electromagnet 14 is lost, the coupling between the electromagnet 14 and the magnetic metal plate 15 is released, and the first and second protective body sides 6a and 6b of the protective body 6 are opened with the connecting portion 6c as a fulcrum. (Separation) is possible. Therefore, the obstacles can be released by opening the first and second protection body sides 6a and 6b in the circumferential direction.
Note that the position where the flange 7 abuts against the operating rod 11a is the abnormality occurrence position where the protective body 6 is buried in a predetermined amount in the opening 3a.
[0015]
Thus, according to the first embodiment, the protector 6 is mounted on the inlet 3 so as to be movable between the normal position and the abnormality occurrence position, and the switch 11 operates at the abnormality occurrence position of the protector 6. It is arranged. The protector 6 is configured to be able to open and close the first and second protector sides 6a and 6b with the connecting portion 6c as a fulcrum, and the electromagnet 14 is disposed on the separation surface of the first protector side 6a. The plate 15 is disposed on the separation surface of the second protective body side 6b. Further, when the switch 11 is not in operation, the control device 13 supplies power to the electromagnet 14 to magnetically attract the magnetic metal plate 15 and closes the first and second protective body sides 6a and 6b with the connecting portion 6c as a fulcrum ( When the switch 11 is operated, the control device 13 stops the passenger conveyor, stops the supply of electric power to the electromagnet 14 and disappears the magnetic attractive force of the electromagnet 14, and the first and second protective body sides 6a and 6b can be opened (separated).
Therefore, when an obstacle is sandwiched between the protection body 6 and the moving handrail 4, the protection body 6 quickly moves from the normal position to the abnormality occurrence position, and the switch 11 operates to stop the passenger conveyor. At the same time, the first and second protective body sides 6a and 6b of the protective body 6 can be separated, so that obstacles can be easily pulled out and the suffering of the victim can be reduced.
Moreover, since it is not necessary to cut off the protective body 6 and the electric power is supplied to the electromagnet 14 after releasing the obstacle, the operation of the passenger conveyor can be resumed. Can be shortened.
[0016]
In the first embodiment, the electromagnet 14 is disposed on the separation surface of the first protection body side 6a and the magnetic metal plate 15 is disposed on the separation surface of the second protection body side 6b. 14 are arranged on the separation surfaces of the first and second protective body sides 6a and 6b, respectively, so that electric power is supplied so as to generate a magnetic attractive force to the two electromagnets 14 at normal times, and magnetic repulsion is applied to the two electromagnets 14 when an abnormality occurs Electric power may be supplied so as to generate a force. In this case, when the occurrence of abnormality is detected by the switch 11, the first and second protective bodies 6a and 6b of the protective body 6 are naturally separated, and the sandwiched obstacle is quickly released.
In the first embodiment, the coupling means is configured by the combination of the electromagnet 14 and the magnetic metal plate 15, but the coupling means is the coupling / uncoupling of the first and second protective body sides 6a, 6b. For example, a suction hole is formed in the first protective body side 6a, a suction plate is disposed on the separation surface of the second protective body side 6b, and a vacuum pump is used to insert the suction hole through the suction hole. The suction plate may be sucked.
[0017]
Embodiment 2. FIG.
6 is a perspective view showing a protector of a handrail entrance safety device for a passenger conveyor according to Embodiment 2 of the present invention.
In FIG. 6, the protector 20 is made of an elastic material such as rubber and is formed in a cross-sectional C shape having an inner shape along the outer shape of the moving handrail 4. The protector 20 is divided into two parts, a first split protector 20a and a second split protector 20b, at the center position in the circumferential direction. In addition, the electromagnet 14 is disposed on the separation surface of the first divided protective body 20a, and the magnetic metal plate 15 is disposed on the separation surface of the second divided protective body 20b.
The configuration is the same as that of the first embodiment except that the protector 20 is used instead of the protector 6.
[0018]
In the second embodiment, when the switch 11 is not in operation, electric power is supplied to the electromagnet 14 so that the magnetic metal plate 15 is magnetically attracted so that the first and second divided protective bodies 20a and 20b are coupled and integrated. During the operation, the supply of electric power to the electromagnet 14 is stopped, the magnetic attractive force of the electromagnet 14 is lost, and the coupling of the first and second divided protective bodies 20a and 20b is released, that is, can be separated.
Therefore, also in the second embodiment, the same effect as in the first embodiment can be obtained.
[0019]
Embodiment 3 FIG.
FIG. 7: is a perspective view which shows the protector of the handrail entrance safety device of the passenger conveyor which concerns on Embodiment 3 of this invention.
In FIG. 7, the protector 21 is made of an elastic material such as rubber and is formed in a cross-sectional C shape having an inner shape along the outer shape of the moving handrail 4. The protector 21 is divided into three parts in the circumferential direction: a first split protector 21a, a second split protector 21b, and a third split protector 20c. Further, the electromagnet 14 is disposed on each separation surface of the first divided protection body 21a and the third division protection body 21c, and the magnetic metal plate 15 (not shown) is disposed on both separation surfaces of the second division protection body 21b. Has been.
The configuration is the same as that of the second embodiment except that the protector 21 is used instead of the protector 20.
[0020]
In the third embodiment, when the switch 11 is not in operation, electric power is supplied to the electromagnet 14 to magnetically attract the magnetic metal plate 15, and the first, second, and third divided protectors 21a, 21b, and 21c are combined and integrated. When the switch 11 is operated, the supply of electric power to the electromagnet 14 is stopped, the magnetic attractive force of the electromagnet 14 is lost, and the protective body 21 is replaced with the first, second and third divided protective bodies 21a, 21b. , 21c.
Therefore, also in the third embodiment, the same effect as in the second embodiment can be obtained.
[0021]
In the third embodiment, the protector 21 is divided into three parts, but the protector may be divided into four or more parts.
[0022]
Embodiment 4 FIG.
FIG. 8: is a perspective view which shows the protector of the handrail entrance safety device of the passenger conveyor which concerns on Embodiment 4 of this invention.
In FIG. 8, the protector 6 </ b> A is made of an elastic material such as rubber and is formed in a cross-sectional C shape having an inner shape along the outer shape of the moving handrail 4. And this protector 6A is divided | segmented so that it may reach from the other end to one end side in the center position of the circumferential direction. As a result, in the protector 6A, the first protector side 6a and the second protector side 6b can be opened and closed in the circumferential direction with the connecting portion 6c (not shown) as a fulcrum. The electromagnet 14 is disposed on the separation surface of the first protection body side 6a, and the magnetic metal plate 15 is disposed on the separation surface of the second protection body side 6b. Further, the positioning pin 22 is erected on the other end edge of the separation surface of the second protective body side 6b, and the guide hole 23 is opposed to the positioning pin 22 on the other end edge of the separation surface of the first protective body knitting a. It is formed as follows. This protective body 6A is obtained by providing a positioning mechanism comprising positioning pins 22 and guide holes 23 on the protective body 6 in the first embodiment.
[0023]
The fourth embodiment is configured in the same manner as the first embodiment except that a protective body 6A is used instead of the protective body 6. Therefore, also in the fourth embodiment, the same effect as in the first embodiment can be obtained.
In the fourth embodiment, when the first and second protection body sides 6a and 6b are closed with the connecting portion as a fulcrum, the positioning pin 22 is inserted into the guide hole 23, and the first and second protection body sides 6a are inserted. 6b are closed. Accordingly, the first and second protection body sides 6a and 6b are positioned with high accuracy and closed, and the coupling position between the electromagnet 14 and the magnetic metal plate 15 is maintained with high accuracy. The holding force in the closed leg state of 6a, 6b is increased.
[0024]
In the fourth embodiment, the positioning pin 22 and the guide hole 23 are provided on the other end edge of the separation surface of the first and second protective body sides 6a and 6b. 23 may be provided at any position on the separation surface of the first and second protective body sides 6a and 6b.
In the fourth embodiment, a pair of the positioning pin 22 and the guide hole 23 is provided on the separation surface of the first and second protective body sides 6a and 6b. However, the positioning pin 22 and the guide hole 23 are provided. A plurality of pairs may be provided. In this case, the first and second protective body sides 6a and 6b are positioned with higher accuracy and are in a closed state, and the accuracy of the coupling position between the electromagnet 14 and the magnetic metal plate 15 is improved.
[0025]
Embodiment 5 FIG.
FIG. 9 is a perspective view showing a protector of a handrail entrance safety device for a passenger conveyor according to Embodiment 5 of the present invention.
In FIG. 9, the protector 6 </ b> B is formed by cutting the engagement protrusion 24 into a frame shape at the outer peripheral edge of the separation surface of the first protection body side 6 a, and the engagement recess 25 is the separation surface of the second protection body side 6 b. The outer peripheral edge of each is formed in a frame shape. The engagement protrusion 24 and the engagement recess 25 are formed in a shape having a marking solder structure.
The positioning mechanism is configured in the same manner as in the fourth embodiment except that the positioning pin 22 and the guide hole 23 are replaced with an engaging protrusion 24 and an engaging recess 25.
[0026]
Also in the fifth embodiment, when the first and second protection body sides 6a and 6b are closed with the connecting portion 6c as a fulcrum, the engagement protrusion 24 is fitted into the engagement recess 25, and the first and first 2 The protector sides 6a and 6b are closed. Accordingly, the first and second protection body sides 6a and 6b are positioned with high accuracy and closed, and the coupling position between the electromagnet 14 and the magnetic metal plate 15 is maintained with high accuracy. The holding force in the closed leg state of 6a, 6b is increased.
[0027]
Embodiment 6 FIG.
FIG. 10: is a perspective view which shows the protector of the handrail entrance safety device of the passenger conveyor which concerns on Embodiment 6 of this invention.
In FIG. 10, in the protector 6C, the clip 26 extends from the outer peripheral edge of the other end of the second protector side 6b to the outside of the separation surface, and the engaging recess 27 is located outside the other end of the first protector side 6a. It is recessed in the vicinity of the separation surface at the peripheral edge. An engagement convex portion 26 a having a convex arcuate cross section is formed on the inner peripheral side at the tip of the clip 26.
The protector 6C is formed by forming the clip 26 and the engagement recess 27 on the protector 6 in the first embodiment.
[0028]
Next, the operation of the sixth embodiment will be described.
First, when electric power is supplied to the electromagnet 14 and a magnetic attractive force is generated, the first and second protectors 6a and 6b start a leg closing operation with the connecting portion 6c as a fulcrum. And the front-end | tip of the engagement protrusion 26a contact | abuts to the separation surface of the 1st protection body edge | side 6a. Therefore, since the engaging protrusion 26a is formed in an arc shape in cross section, a force that presses the clip 26 to the outer peripheral side is generated by the engagement between the engaging protrusion 26a and the separation surface, and the clip 26 is elastically deformed and engaged. The mating protrusion 26 a rides on the outer periphery of the first protective body side 6 a, and finally the engaging protrusion 26 a is fitted into the engaging recess 27. Therefore, even when the power supply to the electromagnet 14 is stopped when the passenger conveyor is powered off, the closed leg state of the first and second protective body sides 6a and 6b is maintained.
[0029]
When an obstacle is caught, the switch 11 operates and the passenger conveyor is stopped. Therefore, when the first and second protective body sides 6a and 6b are spread in the direction to open the legs, the edge on the separation surface side of the engagement recess 27 slides on the inner circumferential surface of the engagement protrusion 26a in the arc-shaped cross section. The engagement protrusion 26a is discharged from the engagement recess 27, and the engagement state between the engagement protrusion 26a and the engagement recess 27 is finally released. Then, the first and second protective body sides 6a and 6b are opened with the connecting portion 6c as a fulcrum, and the caught obstacle is released.
[0030]
Here, when the clip 26 and the engagement recess 27 are not formed, when the power supply to the electromagnet 14 is stopped when the passenger conveyor is powered off, the first and second protection body sides 6a and 6b are stopped. The holding power of the closed leg state is lost. Therefore, the first and second protective body sides 6a and 6b are naturally opened or displaced with the connecting portion 6c as a fulcrum. As a result, every time the passenger conveyor is restarted, the opening / closing leg state of the protection body 6 is checked. If the first and second protection body sides 6a, 6b are opened or displaced, the first and second It is necessary to adjust the positioning of the protection body sides 6a and 6b to close the legs, and it takes time to resume the operation.
[0031]
However, according to the sixth embodiment, even when the supply of electric power to the electromagnet 14 is stopped, the closed leg state of the first and second protective body sides 6a and 6b remains between the engagement protrusion 26a and the engagement recess 27. Since it is maintained by fitting, every time the passenger conveyor is restarted, the check operation of the opening / closing leg state of the protector and the positioning adjustment work of the first and second protector sides 6a and 6b are not required, and the operation is resumed promptly. it can.
Moreover, since the engagement protrusion 26a is formed in a circular arc shape, the engagement state between the engagement protrusion 26a and the engagement recess 27 can be released with a relatively weak force. Therefore, even when an obstacle is caught, the obstacle caught by a relatively weak force can be quickly released.
[0032]
Embodiment 7 FIG.
FIG. 11: is a side view which shows the principal part of the protection body of the handrail entrance safety device of the passenger conveyor which concerns on Embodiment 7 of this invention.
In FIG. 11, in the protector 6D, the clip 28 extends from the outer peripheral edge of the other end of the second protector side 6b to the outside of the separation surface, and the engaging recess 29 is outside the other end of the first protector side 6a. It is recessed in the vicinity of the separation surface at the peripheral edge. And the engagement convex part 28a formed in the front-end | tip part of the clip 28 is convex in the inner peripheral side, The inner peripheral surface is formed in the inclined surface which goes to an outer peripheral side gradually toward a base side from a front-end | tip. Has been. Furthermore, the end surface of the front end of the engagement protrusion 28a is substantially parallel to the separation surface of the second protective body side 6b. The engaging recess 29 is formed in an inner shape that follows the outer shape of the engaging protrusion 28a.
The protective body 6D is formed by forming a clip 28 and an engagement recess 29 in place of the clip 26 and the engagement recess 27 in the sixth embodiment.
[0033]
Next, the operation of the seventh embodiment will be described.
First, when electric power is supplied to the electromagnet 14 and a magnetic attractive force is generated, the first and second protectors 6a and 6b start a leg closing operation with the connecting portion 6c as a fulcrum. And the front-end | tip of the engagement protrusion 28a contact | abuts to the separation surface of the 1st protection body edge | side 6a. Therefore, since the tip end surface of the engagement protrusion 26a is formed substantially parallel to the separation surface of the second protection body side 6b, the clip 28 is engaged by the engagement of the engagement protrusion 28a and the separation surface of the first protection body side 6a. The force which presses the outer peripheral side is not generated, and the engagement between the engagement protrusion 28a and the engagement recess 29 is not realized.
Then, the front end side of the clip 28 is pressed to the outer peripheral side by human power, the clip 28 is elastically deformed, and the engaging projection 28a is ridden on the outer periphery of the first protective body side 6a. Thereafter, due to the magnetic attractive force of the electromagnet 14, the first and second protective body sides 6a and 6b are closed with the connecting portion 6c as a fulcrum, and the engaging protrusion 28a and the engaging recess 29 are finally fitted. Therefore, even when the power supply to the electromagnet 14 is stopped when the passenger conveyor is powered off, the closed leg state of the first and second protective body sides 6a and 6b is maintained.
[0034]
When an obstacle is caught, the switch 11 operates and the passenger conveyor is stopped. Therefore, when the first and second protection body sides 6a and 6b are spread in the direction of opening, the edge of the engagement recess 29 on the separation surface side slides on the inclined surface (inner peripheral surface) of the engagement protrusion 28a. The engagement protrusion 28a is discharged from the engagement recess 29, and the engagement state between the engagement protrusion 28a and the engagement recess 29 is finally released. Then, the first and second protective body sides 6a and 6b are opened with the connecting portion 6c as a fulcrum, and the caught obstacle is released.
[0035]
Therefore, also in the seventh embodiment, even when the supply of electric power to the electromagnet 14 is stopped, the closed leg state of the first and second protective body sides 6a and 6b is kept between the engagement protrusion 28a and the engagement recess 29. Therefore, every time the passenger conveyor is restarted, the check work of the opening / closing leg state of the protector and the positioning adjustment work of the first and second protector sides 6a and 6b are not required, and the operation can be resumed promptly. .
In addition, since the inner peripheral surface of the engagement protrusion 28a is formed as an inclined surface gradually toward the outer peripheral side from the tip toward the base side, the engagement protrusion 28a and the engagement recess 29 are formed with a relatively weak force. The engaged state can be released. Therefore, even when an obstacle is caught, the obstacle caught by a relatively weak force can be quickly released.
[0036]
Furthermore, since the tip end face of the engagement protrusion 28a is formed substantially parallel to the separation surface of the second protective body side 6b, the engagement protrusion 28a can be closed even if the first and second protective body sides 6a, 6b are closed. The tip end face of 28a abuts on the separation surface of the first protective body side 6a, and the open leg state of the first and second protective body sides 6a, 6b is maintained. Therefore, when an obstacle is sandwiched between the first and second protective body sides 6a, 6b when the passenger opens the first and second protective body sides 6a, 6b and releases the obstacle by himself, An open leg state is maintained. As a result, when the clerk arrives at the site later, it can be determined that the emergency stop of the passenger conveyor is due to the operation of the handrail entrance safety device.
[0037]
In addition, although the said Embodiment 4-7 demonstrated as what applies to the protector 6 of the said Embodiment 1, you may apply to the protectors 20 and 21 of the said Embodiment 2 or 3. It goes without saying.
[0038]
【The invention's effect】
As described above, the present invention is formed in the balustrade inlet having the opening into which the moving handrail enters, and the outer shape along the inner shape of the opening, and the one end is positioned in the opening and the movement is performed. It is externally fitted to the handrail in a loosely fitted state, and can move forward and backward between a normal position protruding a predetermined amount from the opening and an abnormality occurrence position buried in the opening by a predetermined amount, and at least the non-inlet side in the circumferential direction A protector having a C-shaped cross section configured to be separable, a spring member that biases the protector toward the normal position, an abnormality detection means that operates when the protector is in the abnormality occurrence position, An engaging means for generating a force for attracting the separating surfaces facing each other of the protector, and when the abnormality detecting means is inoperative, the engaging means is driven to generate the attracting force for opposing the separating surfaces. Integration A control device for stopping the passenger conveyor when the abnormality detecting means is activated, and for stopping the driving of the engaging means to eliminate the pulling force and separating the protective body in the circumferential direction. Therefore, the passenger conveyor handrail entry safety device that ensures the stoppage of the passenger conveyor when an obstacle is caught and separates the protective body so that the obstacle can be quickly released is obtained.
[Brief description of the drawings]
FIG. 1 is a side view of a main part showing a balustrade end portion of a passenger conveyor according to Embodiment 1 of the present invention.
FIG. 2 is a cross-sectional view showing the area A in FIG.
FIG. 3 is a front view showing around the handrail entrance safety device of the passenger conveyor according to the first embodiment of the present invention.
FIG. 4 is a perspective view showing a protector of a handrail entrance safety device for a passenger conveyor according to Embodiment 1 of the present invention.
FIG. 5 is a perspective view showing a protector of a handrail entrance safety device for a passenger conveyor according to Embodiment 1 of the present invention.
FIG. 6 is a perspective view showing a protector of a handrail entrance safety device for a passenger conveyor according to Embodiment 2 of the present invention.
FIG. 7 is a perspective view showing a protector of a handrail entrance safety device for a passenger conveyor according to Embodiment 3 of the present invention.
FIG. 8 is a perspective view showing a protector of a handrail entrance safety device for a passenger conveyor according to Embodiment 4 of the present invention.
FIG. 9 is a perspective view showing a protector of a handrail entrance safety device for a passenger conveyor according to Embodiment 5 of the present invention.
FIG. 10 is a perspective view showing a protector of a handrail entrance safety device for a passenger conveyor according to Embodiment 6 of the present invention.
FIG. 11 is a side view showing a main part of a protector of a handrail entrance safety device for a passenger conveyor according to Embodiment 7 of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Parapet, 3 inlet, 3a opening, 4 Moving handrail, 6, 6A, 6B, 6C, 6D, 20, 21 Protection body, 11 Switch (abnormality detection means), 12 Compression coil spring (spring member), 13 Control apparatus, 14 electromagnet (engagement means), 15 magnetic metal plate (engagement means), 22 positioning pin (positioning mechanism), 23 guide hole (positioning mechanism), 24 engagement protrusion (positioning mechanism), 25 engagement recess (positioning mechanism) ), 26 clip, 26a engagement protrusion, 27 engagement recess, 28 clip, 28a engagement protrusion, 29 engagement recess.

Claims

An inlet of a balustrade having an opening into which the moving handrail enters, and an outer shape along the inner shape of the opening, and one end is positioned in the opening and is fitted into the moving handrail in a loose fitting state; A C-shaped cross section configured to be movable back and forth between a normal position protruding from the opening by a predetermined amount and an abnormality occurrence position buried in the opening by a predetermined amount, and at least the anti-inlet side can be separated in the circumferential direction. A protector, a spring member that urges the protector toward the normal position, an abnormality detection means that operates when the protector is in the abnormality occurrence position, and an opposing separation surface of the protector. When the engaging means for generating the pulling force and the abnormality detecting means are not in operation, the engaging means is driven to generate the pulling force so that the opposing separation surfaces are coupled and integrated, and the abnormality detecting means In operation And a control device for stopping the passenger conveyor and stopping the driving of the engaging means to eliminate the pulling force and separating the protective body in the circumferential direction. Handrail entrance safety device.

The handrail entrance safety device for a passenger conveyor according to claim 1, further comprising a positioning mechanism for positioning opposing separating surfaces of the protectors.

An engaging recess is recessed on one side in the circumferential direction with the separation surface sandwiched between the outer peripheral surface of the protector, and a clip having an engaging protrusion at the tip that fits into the engaging recess is an outer peripheral surface of the protector Extending from the other side in the circumferential direction across the separation surface, and when the opposing separation surfaces are coupled and integrated, the engagement protrusions are fitted into the engagement recesses to face the The handrail entrance safety device for a passenger conveyor according to claim 1, wherein the safety device is configured to maintain a combined state of the separation surfaces.

When the inner peripheral surface of the engaging protrusion is configured as an inclined surface gradually moving toward the outer peripheral side with respect to the direction from the distal end side to the base side, and an external force acting in a direction to separate the opposing separating surfaces in the coupled state is applied. 4. A handrail entrance for a passenger conveyor according to claim 3, wherein an edge portion of the engagement recess slides on the inclined surface to release the engagement between the engagement recess and the engagement protrusion. Safety device.

The clip is configured such that when an external force that causes the opposing separation surfaces to approach is applied, an end surface of a tip of the engagement protrusion comes into contact with a separation surface on one side of the opposing separation surface. The handrail entrance safety device for a passenger conveyor according to claim 4, characterized in that: