【０００１】
【発明の属する技術分野】
本発明は、複数台の並列する昇降車両支持台の内、任意の１台を入出庫レベルへ昇降可能にした駐車装置に関するものである。
【０００２】
【従来の技術】
上記のような駐車装置として、複数台の並列する昇降車両支持台の内、任意の１台を入出庫レベルへ昇降可能にする前記昇降車両支持台の内、前記横行車両支持台が在席しない空き位置に対応する１台の昇降車両支持台のみを入出庫レベルへ昇降可能にする切換手段と、繰り出し引き込みにより昇降車両支持台が昇降するように並列する複数台の昇降車両支持台を連続して吊り下げる吊り索と、当該吊り索の繰り出し引き込み手段とが設けられ、並列する複数台の昇降車両支持台を１台の吊り索繰り出し引き込み手段で昇降駆動出来るように構成したものが知られている。
【０００３】
係る構成の駐車装置に於ける前記吊り索（例えばワイヤーロープ）は、例えば特許文献１〜３及び非特許文献１に記載されているように、その一端が固定フレーム側に係止されると共に他端が前記繰り出し引き込み手段に係止されており、両端間の吊り索を、固定フレーム側に軸支された位置固定回転案内輪と各昇降車両支持台側に軸支された吊下用回転案内輪とに順次掛け渡して、各昇降車両支持台を吊り下げ、前記繰り出し引き込み手段で吊り索を引き込むことにより昇降車両支持台を上昇させ、当該繰り出し引き込み手段で吊り索を繰り出すことにより昇降車両支持台を下降させるように構成されている。従って、１本の吊り索で各昇降車両支持台を吊り下げる場合は、当該１本の吊り索にかかる荷重に相応する引っ張り強度を備えた太い吊り索が必要になり、単に吊り索コストが高くつくというだけでなく、許容曲げ半径も大きくなるので、併用される多数個の回転案内輪も大径になり、設備コストが非常に高くつくことになる。勿論、細い吊り索を２本合わせて使用することも出来るが、各吊り索に均等に負荷を掛けることが困難であり、安全性の点で実用化出来なかった。
【０００４】
【特許文献１】
特開２０００−２６５６９７号公報
【特許文献２】
特開２００２−６１４０３号公報
【特許文献３】
特許第３０３７６５２号公報
【非特許文献１】
特願２００２−８７３０６号
【０００５】
【課題を解決するための手段】
本発明は上記のような従来の問題点を解消し得る駐車装置を提供することを目的とするものであって、その手段を後述する実施形態の参照符号を付して示すと、複数台の並列する昇降車両支持台２Ａ〜３Ｃの内、任意の１台を入出庫レベルＮへ昇降可能にする切換手段（各別下降阻止手段２０ａ〜２０ｃ、一括下降阻止手段２１、各別上昇阻止手段２２ａ〜２２ｃ、一括上昇阻止手段２３）と、繰り出し引き込みにより昇降車両支持台２Ａ〜３Ｃが昇降するように、並列する複数台の昇降車両支持台２Ａ〜２Ｃ，３Ａ〜３Ｃを連続して吊り下げる吊り索１１と、当該吊り索１１の繰り出し引き込み手段１２とが設けられた駐車装置であって、前記吊り索１１は、１本の吊り索１１を固定フレーム側に設けられた回転案内輪４０に掛け回して二重吊り索としたもので、その中間の二重吊り索１１で各昇降車両支持台２Ａ〜３Ｃを吊り下げた構成となっている。
【０００６】
上記構成の本発明を実施するについて、前記回転案内輪４０は、固定フレーム側の定位置に軸支しても良いが、吊り索１１を緊張させる方向にスプリング４６で付勢された被検出可動体４７とセンサー４８ａ〜４８ｃとを備えた吊り索張力検出器１６が併用される場合、当該吊り索張力検出器１６の前記被検出可動体４７に軸支することが出来る。
【０００７】
又、前記繰り出し引き込み手段１２が、吊り索巻き取りドラム１４と当該ドラム１４を正逆回転駆動するモーター１５とから構成される場合、前記吊り索巻き取りドラム１４には、並列する二条の吊り索嵌合溝４４ａ，４４ｂを、当該ドラム１４の軸方向一端側から他端側へ螺旋状に形成することが出来る。
【０００８】
【発明の実施の形態】
以下に本発明の実施形態を添付の例示図に基づいて説明するが、先ず最初に、図１〜図４に基づいて駐車装置全体の基本的な構成を説明すると、図示の駐車装置は、グランドレベルと略同一の入出庫レベルＮと、当該入出庫レベルＮより上方の上側支持レベルＵと、当該入出庫レベルＮより下方の下側支持レベルＤとから成る、地上２階地下１階の３層構造の駐車装置であり、入出庫レベルＮには２台の横行車両支持台１Ａ，１Ｂが配設され、上側支持レベルＵと下側支持レベルＤとには、それぞれ３台の昇降車両支持台２Ａ〜２Ｃ，３Ａ〜３Ｃが並設されている。
【０００９】
横行車両支持台１Ａ，１Ｂは、前後両端がそれぞれ固定フレーム側のガイドレール４ａ，４ｂ上にそれぞれ車輪５ａ，５ｂを介して支持されると共に、これら車輪５ａ，５ｂの内、少なくとも１つを正逆回転駆動する走行用駆動手段が搭載され、各別に左右任意の方向に自走可能に構成されている。
【００１０】
上側の昇降車両支持台２Ａ〜２Ｃ及び下側の昇降車両支持台３Ａ〜３Ｃは、図示省略しているが、それぞれ後端側にガイドローラーが軸支され、固定フレーム側には、前記ガイドローラーが係合する昇降用ガイドレールが立設され、それぞれ各別に車両支持姿勢を保って昇降し得るように構成されたものであり、上側の昇降車両支持台２Ａ〜２Ｃは、上側支持レベルＵに併設された固定フレーム側の上昇限ストッパー６ａ〜６ｃと入出庫レベルＮに併設された固定フレーム側の下降限ストッパー７ａ〜７ｃとの間で昇降可能であり、下側の昇降車両支持台３Ａ〜３Ｃは、下側支持レベルＤに於ける下降限ストッパー面８ａ〜８ｃと入出庫レベルＮに於ける上昇限ストッパー９ａ〜９ｃとの間で昇降可能である。
【００１１】
尚、上側の昇降車両支持台２Ａ〜２Ｃのための下降限ストッパー７ａ〜７ｃは、入出庫レベルＮに架設される横行車両支持台用のガイドレール４ａ，４ｂ（実際は、レール材が敷設された水平形鋼等）で兼用させることが出来る。又、下側の昇降車両支持台３Ａ〜３Ｃのための下降限ストッパー面８ａ〜８ｃは、図１〜図３では判り易くするために特別な突起があるように示しているが、実際は、図４に示すように、下側支持レベルＤでの車両格納空間を形成する地下ピット１０の床面で構成することが出来る。更に、上昇限ストッパー９ａ〜９ｃは、入出庫レベルＮに架設される横行車両支持台用の後側ガイドレール４ｂ（実際は、レール材が敷設された水平形鋼等）で兼用させることが出来る。
【００１２】
上下各昇降車両支持台２Ａ〜３Ｃの昇降駆動手段は、吊り索１１と吊り索１１の繰り出し引き込み手段１２とから構成されている。繰り出し引き込み手段１２は、上部固定フレーム１３の一端部に支持されたもので、吊り索巻き取りドラム１４と当該ドラム１４を正逆回転駆動するモーター１５とから構成されている。吊り索１１は、その一端が前記吊り索巻き取りドラム１４に係止されると共に、他端が前記上部固定フレーム１３の一端部に取り付けられた吊り索張力検出器１６に係止され、両端の中間部で全ての昇降車両支持台２Ａ〜３Ｃを吊り下げている。
【００１３】
具体的に説明すると、各昇降車両支持台２Ａ〜３Ｃには、後端部に左右一対の被吊下用回転案内輪１７ａ〜１７ｃ，１８ａ〜１８ｃが軸支され、上部固定フレーム１３には、図示のような配置で吊下用回転案内輪１９ａ〜１９ｈが軸支されており、吊り索巻き取りドラム１４から垂下した吊り索１１は、当該ドラム１４と吊下用回転案内輪１９ａとの間、吊下用回転案内輪１９ａ，１９ｂ間、及び吊下用回転案内輪１９ｂ，１９ｃ間でそれぞれ被吊下用回転案内輪１８ａ〜１８ｃを介して下側昇降車両支持台３Ａ〜３Ｃを順番に吊り下げた後、吊下用回転案内輪１９ｄを経由してＵターンし、続いて、吊下用回転案内輪１９ｅ，１９ｆ間、吊下用回転案内輪１９ｆ，１９ｇ間、及び吊下用回転案内輪１９ｇ，１９ｈ間でそれぞれ被吊下用回転案内輪１７ａ〜１７ｃを介して上側昇降車両支持台２Ａ〜２Ｃを順番に吊り下げ、そして端末が吊り索張力検出器１６に係止されている。
【００１４】
前記昇降車両支持台２Ａ〜３Ｃの内、前記横行車両支持台１Ａ，１Ｂが在席しない空き位置に対応する１台の昇降車両支持台のみを入出庫レベルＮへ昇降可能にする切換手段が併設されている。図１〜図３では、前記非特許文献１に記載された切換手段を模式的に示しており、当該切換手段は、各上側昇降車両支持台２Ａ〜２Ｃのそれぞれに対応する各別下降阻止手段２０ａ〜２０ｃ、上側昇降車両支持台２Ａ〜２Ｃの全てに作用する一括下降阻止手段２１、各下側昇降車両支持台３Ａ〜３Ｃのそれぞれに対応する各別上昇阻止手段２２ａ〜２２ｃ、及び下側昇降車両支持台３Ａ〜３Ｃの全てに作用する一括上昇阻止手段２３から構成され、この実施形態では更に、入出庫レベルＮまで上げられた下側昇降車両支持台３Ａ〜３Ｃの落下防止手段２４が併設されている。
【００１５】
各別下降阻止手段２０ａ〜２０ｃや各別上昇阻止手段２２ａ〜２２ｃは、非特許文献１に記載されたものの他、特許文献１〜３に記載された従来周知のものも利用出来る。何れにしても、各別下降阻止手段２０ａ〜２０ｃと各別上昇阻止手段２２ａ〜２２ｃとは、入出庫レベルＮに於ける空き位置（横行車両支持台１Ａ，１Ｂが在席しない位置）に対応する手段が昇降車両支持台２Ａ〜３Ｃの昇降を許す非作用状態に切り換えられ、横行車両支持台１Ａ，１Ｂが在席する位置に対応する手段は、昇降車両支持台２Ａ〜３Ｃの昇降を阻止する作用状態に切り換えられるものであれば良い。従って、それぞれ各別に切換用アクチェーターを備えた手段２０ａ〜２０ｃ，２２ａ〜２２ｃを各昇降車両支持台２Ａ〜３Ｃに対応する定位置に配設した構成でも良いが、コストや制御の点で、前記各特許文献１〜３や非特許文献１に記載されたように、横行車両支持台１Ａ，１Ｂや下側昇降車両支持台３Ａ〜３Ｃに前記手段２０ａ〜２０ｃ，２２ａ〜２２ｃを設ける構成や、各昇降車両支持台２Ａ〜３Ｃに対応する定位置に配設された前記手段２０ａ〜２０ｃ，２２ａ〜２２ｃを横行車両支持台１Ａ，１Ｂによって切り換える構成等を採用するのが望ましい。
【００１６】
一括下降阻止手段２１は、図１及び図７に示すように、上側支持レベルＵに位置する上側昇降車両支持台２Ａ〜２Ｃを、上昇限ストッパー６ａ〜６ｃで上昇を制止されるレベルと各別下降阻止手段２０ａ〜２０ｃで受け止められるレベルとの中間レベルで一括して下降制止するもので、各上側昇降車両支持台２Ａ〜２Ｃの後端側左右両側を支持する複数の係留フック２５ａ〜２５ｄと、これら係留フック２５ａ〜２５ｄを連動駆動する共通駆動軸２６と、この共通駆動軸２６をリンク機構２７等を介して正逆回転駆動する駆動手段（モーター、シリンダー、ソレノイド等）２８とから構成され、当該駆動手段２８により、作用状態（各係留フック２５ａ〜２５ｄが上側昇降車両支持台２Ａ〜２Ｃの下降を制止する状態）と、非作用状態（各係留フック２５ａ〜２５ｄが上側昇降車両支持台２Ａ〜２Ｃの下降を許す状態）とに切り換えることが出来る。
【００１７】
尚、図７に示すように、各上側昇降車両支持台２Ａ〜２Ｃの前端側を支持する複数の係留手段２９（例えば前記係留フック２５ａ〜２５ｄと同一のもの）を配設することが出来る。この場合、各係留手段２９を各別に動作させるアクチェーターを併設しても良いが、各係留手段２９を、その後方に位置する各係留フック２５ａ〜２５ｄとリンク機構３０等により連動連結することも出来る。
【００１８】
一括上昇阻止手段２３は、図１及び図７に示すように、下側支持レベルＤに位置する下側昇降車両支持台３Ａ〜３Ｃを、各別上昇阻止手段２０ａ〜２０ｃで受け止められるレベルより若干上側のレベルで一括して上昇制止するもので、各下側昇降車両支持台３Ａ〜３Ｃの後端側左右両側を支持する複数の係留フック３１ａ〜３１ｄと、これら係留フック３１ａ〜３１ｄを連動駆動する共通駆動軸３２と、この共通駆動軸３２をリンク機構３３等を介して正逆回転駆動する駆動手段（モーター、シリンダー、ソレノイド等）３４とから構成され、当該駆動手段３４により、作用状態（各係留フック３１ａ〜３１ｄが下側昇降車両支持台３Ａ〜３Ｃの上昇を制止する状態）と、非作用状態（各係留フック３１ａ〜３１ｄが下側昇降車両支持台３Ａ〜３Ｃの上昇を許す状態）とに切り換えることが出来る。
【００１９】
前記落下防止手段２４は、図１及び図７に示すように、入出庫レベルＮまで上げられた下側昇降車両支持台３Ａ〜３Ｃを、上昇限ストッパー９ａ〜９ｃで上昇を制止されるレベルより若干下側のレベルで受け止めるもので、各下側昇降車両支持台３Ａ〜３Ｃの後端側左右両側を支持する複数の係留フック３５ａ〜３５ｄと、これら係留フック３５ａ〜３５ｄを連動駆動する共通駆動軸３６と、この共通駆動軸３６をリンク機構３７等を介して正逆回転駆動する駆動手段（モーター、シリンダー、ソレノイド等）３４とから構成され、駆動手段３４により、作用状態（下側昇降車両支持台３Ａ〜３Ｃが入出庫レベルＮから下降するのを各係留フック３５ａ〜３５ｄが制止する状態）と、非作用状態（入出庫レベルＮから下降する下側昇降車両支持台３Ａ〜３Ｃに各係留フック３５ａ〜３５ｄが干渉しない状態）とに切り換えることが出来る。
【００２０】
尚、この実施形態では、一括上昇阻止手段２３と落下防止手段２４とを共通の駆動手段３４で、両手段２３，３４の作用状態と非作用状態とが逆になるように連動駆動するように構成しているが、一括上昇阻止手段２３と落下防止手段２４とにそれぞれ専用の駆動手段を設けることも出来る。又、この実施形態では、図７に示すように、入出庫レベルＮまで上げられた各下側昇降車両支持台３Ａ〜３Ｃの前端側を支持する複数の係留手段３８（例えば前記係留フック３５ａ〜３５ｄと同一のもの）を配設することが出来る。この場合、各係留手段３８を各別に動作させるアクチェーターを併設しても良いが、各係留手段３８を、その後方に位置する各係留フック３５ａ〜３５ｄとリンク機構３９等により連動連結することも出来る。
【００２１】
前記吊り索１１は、１本のワイヤーロープを吊り索張力検出器１６側で折り返して二重吊り索としたものである。従って、図５に示すように二重吊り索１１の両端１１ａ，１１ｂは、繰り出し引き込み手段１２の吊り索巻き取りドラム１４に係止され、図６に示すように二重吊り索１１のＵターン部１１ｃは、吊り索張力検出器１６に設けられた回転案内輪４０に掛け回されている。従って、この二重吊り索が掛け回される各被吊下用回転案内輪１７ａ〜１８ｃ及び各吊下用回転案内輪１９ａ〜１９ｈは、全て２つの同径案内輪を同心状に並設した２連案内輪となっている。
【００２２】
具体的に説明すると、図５に示すように、吊り索巻き取りドラム１４は、モーター１５側の小歯輪４１とチエン４２によって連動連結される大歯輪４３が一端に固着されたもので、その周面には、並列する二条の吊り索嵌合溝４４ａ，４４ｂが、当該ドラム１４の軸方向一端側から他端側へ螺旋状に形成されている。而して、前記二重吊り索１１の両端１１ａ，１１ｂは、ドラム１４の一端（大歯輪４３に隣接する側）の端面板１４ａに適当な締結金具４５ａ，４５ｂを介して固定された状態で当該ドラム１４の一端外側に引き出され、前記並列する二条の吊り索嵌合溝４４ａ，４４ｂに嵌合するように螺旋状に巻回される。１４ｂは、吊り索巻き取りドラム１４の支軸である。一方、前記吊り索張力検出器１６は、図６に示すように、二重吊り索１１を緊張させる方向にスプリング４６で付勢された被検出可動体４７とセンサー４８ａ〜４８ｃとを備えたもので、前記被検出可動体４７の端部に前記回転案内輪４０が軸支されている。即ち、前記被検出可動体４７は、支持フレーム４９に横動自在に貫通支持されたロッド４７ａと、このロッド４７ａの外端に結合された被検出用磁性体４７ｂとから成り、この被検出用磁性体４７ｂの外端に前記回転案内輪４０が軸支された軸受体５０が結合されている。前記スプリング４６は、ロッド４７ａの内端に取り付けられたバネ受け座５１と前記支持フレーム４９との間に介装されている。５２は、支持フレーム４９に取り付けられたセンサー支持フレームであり、このセンサー支持フレーム５２にそれぞれ位置調整可能に取り付けられた各センサー４８ａ〜４８ｃが被検出用磁性体４７ｂによってＯＮ，ＯＦＦ動作し、このセンサー４８ａ〜４８ｃのＯＮ，ＯＦＦ状態から吊り索１１に作用している張力、換言すれば昇降車両支持台２Ａ〜３Ｃの位置を検出する。
【００２３】
以下、使用方法及び作用を説明すると、入出庫レベルＮにある横行車両支持台１Ａ，１Ｂに対しては、車両の自走による積み下ろし作業は自由に行える。上側支持レベルＵにある上側昇降車両支持台２Ａ〜２Ｃの内の任意の１台、又は下側支持レベルＤにある下側昇降車両支持台３Ａ〜３Ｃの内の任意の１台に対して車両の自走による積み下ろし作業を行うときは、当該作業対象の昇降車両支持台の真下又は真上位置に於いて入出庫レベルＮに空きスペースがなければならないが、当該作業対象の昇降車両支持台の真下又は真上位置に横行車両支持台１Ａ又は１Ｂが在席しているときは、先ず最初に当該空きスペースを確保するために、横行車両支持台１Ａ，１Ｂを横動させる。
【００２４】
例えば、図１に於いて、下側昇降車両支持台３Ｃを入出庫レベルＮに上昇させるときは、当該下側昇降車両支持台３Ｃの真上に在席する横行車両支持台１Ｂを図の右方に横動させるのであるが、このとき、先に説明したように、各別下降阻止手段２０ａ〜２０ｃや各別上昇阻止手段２２ａ〜２２ｃが横行車両支持台１Ａ，１Ｂ又は下側昇降車両支持台３Ａ〜３Ｃに設けられた構成や、当該手段２０ａ〜２０ｃ，２２ａ〜２２ｃの切換用アクチェーターを横行車両支持台１Ａ，１Ｂで構成させている場合、当該手段２０ａ〜２０ｃ，２２ａ〜２２ｃに昇降車両支持台２Ａ〜３Ｃ側からの負荷が作用していると、横行車両支持台１Ａ，１Ｂを無理なく円滑に横動させることが出来ないので、横行車両支持台１Ａ，１Ｂを横動させるときは、図１に示すように全ての上側昇降車両支持台２Ａ〜２Ｃが一括下降阻止手段２１で受け止められると共に、全ての下側昇降車両支持台３Ａ〜３Ｃが下降限ストッパー面８ａ〜８ｃで受け止められた初期状態にあることを条件とする。
【００２５】
上記の初期状態を得る方法は、全ての下側昇降車両支持台３Ａ〜３Ｃが下降限ストッパー面８ａ〜８ｃで受け止められると共に一括上昇阻止手段２３が作用状態に切り換えられ、且つ一括下降阻止手段２１が非作用状態に切り換えられている状態で、繰り出し引き込み手段１２の吊り索巻き取りドラム１４をモーター１５により吊り索巻き取り方向に回転駆動し、二重吊り索１１を当該ドラム１４で巻き取らせて、全ての下側昇降車両支持台３Ａ〜３Ｃを一括上昇阻止手段２３で制止される位置まで上昇させると共に、全ての上側昇降車両支持台２Ａ〜２Ｃを上昇限ストッパー６ａ〜６ｃで制止される位置まで上昇させる（このとき、図６に示す張力検出器１６が許容最大張力を検出した状態、即ち、センサー４８ａ，４８ｃがＯＮし、センサー２８ｂのみがＯＦＦになる）。この後、一括下降阻止手段２１を作用状態に切り換えた状態で前記吊り索巻き取りドラム１４を吊り索巻き取り方向に回転駆動するか又はフリーにする。この結果、全ての昇降車両支持台２Ａ〜３Ｃが重力で下降し、上側昇降車両支持台２Ａ〜２Ｃが一括下降阻止手段２１で受け止められると共に、下側昇降車両支持台３Ａ〜３Ｃが下降限ストッパー面８ａ〜８ｃで受け止められる初期状態になる（このとき、図６に示す張力検出器１６が最小張力を検出した状態、即ち、センサー４８ｂ，４８ｃがＯＮし、センサー２８ａのみがＯＦＦになる）。
【００２６】
上記の初期状態では、各別下降阻止手段２０ａ〜２０ｃと上側昇降車両支持台２Ａ〜２Ｃ、及び各別上昇阻止手段２２ａ〜２２ｃと下側昇降車両支持台３Ａ〜３Ｃとは、それぞれ互いに小間隙を隔てて離間した状態にあるから、先に説明した構成を採用していても、横行車両支持台１Ａ，１Ｂを問題なく横動させることが出来る。而して、図１に仮想線で示すように、作業対象の下側昇降車両支持台３Ｃの真上に空きスペースを確保するために、横行車両支持台１Ｂを図の右方へ横動させ、各横行車両支持台１Ａ，１Ｂを下側昇降車両支持台３Ａ，３Ｂの真上位置（上側昇降車両支持台２Ａ，２Ｂの真下位置）に位置させる。一方、横行車両支持台１Ｂの横動に伴って、各別下降阻止手段２０ａ〜２０ｃ及び各別上昇阻止手段２２ａ〜２２ｃの内、横行車両支持台１Ａ，１Ｂが在席しない入出庫レベルＮの空きスペースの上下に対応する手段２０ｃ，２２ｃのみが自動的に非作用状態に切り換えられる。
【００２７】
この後、一括上昇阻止手段２３を非作用状態に切り換えた状態で、吊り索巻き取りドラム１４をモーター１５により吊り索巻き取り方向に回転駆動し、二重吊り索１１を当該ドラム１４で巻き取らせて、全ての昇降車両支持台２Ａ〜３Ｃを上昇駆動させると、図２に示すように、全ての上側昇降車両支持台２Ａ〜２Ｃは再び上昇限ストッパー６ａ〜６ｃで制止される位置まで上昇し、下側昇降車両支持台３Ａ〜３Ｃの内、昇降車両支持台３Ａ，３Ｂは、作用状態にある各別上昇阻止手段２２ａ，２２ｂで上昇阻止され、作業対象の昇降車両支持台３Ｃのみが入出庫レベルＮに於ける上昇限ストッパー９ｃで制止される位置まで上昇する（このとき、図６に示す張力検出器１６が許容最大張力を検出した状態、即ち、センサー４８ａ，４８ｃがＯＮし、センサー２８ｂのみがＯＦＦになる）。尚、このときは、入出庫レベルＮに於ける落下防止手段２４は、一括上昇阻止手段２３を非作用状態に切り換えたことに連動して自動的に作用状態に切り換えられているので、上昇してくる下側昇降車両支持台３Ｃが当該作用状態の落下防止手段２４と干渉する前に一括上昇阻止手段２３を作用状態に戻して、落下防止手段２４を非作用状態に切り換えておく必要がある。
【００２８】
作業対象の下側昇降車両支持台３Ｃが入出庫レベルＮまで上昇せしめられたならば、当該下側昇降車両支持台３Ｃに対して車両の自走による積み下ろし作業を行うことが出来るが、この作業に先立って、落下防止手段２４を作用状態に切り換えておく（一括上昇阻止手段２３は非作用状態に切り換わる）ことにより、仮に二重吊り索１１の破断事故等が生じても、当該二重吊り索１１に吊り下げられた状態の下側昇降車両支持台３Ｃが入出庫レベルＮから落下するのを、当該落下防止手段２４の係留フック３５ｃ，３５ｄで受け止めて阻止させることが出来る。このとき一括上昇阻止手段２３は、落下防止手段２４を作用状態に切り換えたことに連動して自動的に非作用状態に切り換えられる。
【００２９】
車両積み下ろし作業が完了した入出庫レベルＮの下側昇降車両支持台３Ｃを元の下側支持レベルＤに下降させるときは、落下防止手段２４を非作用状態に切り換え（一括上昇阻止手段２３は作用状態に切り換わる）た状態で、吊り索巻き取りドラム１４をモーター１５により吊り索繰り出し方向に回転駆動し、二重吊り索１１を当該ドラム１４から繰り出して、全ての昇降車両支持台２Ａ〜３Ｃを重力で下降させる。この結果、全ての上側昇降車両支持台２Ａ〜２Ｃは、作用状態にある一括下降阻止手段２１によって受け止められて上側支持レベルＵに留まり、入出庫レベルＮに引き上げられていた下側昇降車両支持台３Ｃが下側支持レベルＤの下降限ストッパー面８ｃで受け止められる下降限位置まで下降する。他の下側昇降車両支持台３Ａ，３Ｂは、作用状態にある各別上昇阻止手段２２ａ，２２ｂから若干下降して、それぞれ下降限ストッパー面８ａ，８ｂで受け止められる。即ち、図１に示す初期状態に戻ることになる。
【００３０】
下側昇降車両支持台３Ｃに代えて上側昇降車両支持台２Ｃを入出庫レベルＮに確保された空きスペースに下降させて車両の自走による積み下ろし作業を行うときは、上記作業時と同様に、初期状態から横行車両支持台１Ｂを図１の右方に横動させて、作業対象の上側昇降車両支持台２Ｃの真下の入出庫レベルＮに空きスペースを確保した後、一括上昇阻止手段２３が作用状態にある状態で二重吊り索１１の巻き取りにより全ての昇降車両支持台２Ａ〜３Ｃを一旦上昇させ、下側昇降車両支持台３Ａ〜３Ｃの内、入出庫レベルＮの空きスペースの真下にある下側昇降車両支持台３Ｃは、一括上昇阻止手段２３で上昇を制止して下側支持レベルＤに留めると共に、残りの下側昇降車両支持台３Ａ，３Ｂは、作用状態の各別上昇阻止手段２２ａ，２２ｂで上昇を制止して下側支持レベルＤに留め、上側昇降車両支持台２Ａ〜２Ｃは上昇限ストッパー６ａ〜６ｃで上昇を制止して、一括下降阻止手段２１から若干浮上させる。
【００３１】
上記の状態で、一括下降阻止手段２１を非作用状態に切り換えた後、二重吊り索１１を繰り出すことにより、全ての昇降車両支持台２Ａ〜３Ｃを下降させると、図３に示すように、下側昇降車両支持台３Ａ〜３Ｃは再び下側支持レベルＤの下降限ストッパー面８ａ〜８ｃで受け止められると共に、上側昇降車両支持台２Ａ〜２Ｃの内、真下に横行車両支持台１Ａ，１Ｂが位置する上側昇降車両支持台２Ａ，２Ｂは、作用状態にある各別下降阻止手段２０ａ，２０ｂで受け止められて上側支持レベルＵに留まるが、真下の入出庫レベルＮが空きスペースである上側昇降車両支持台２Ｃは、その位置の各別下降阻止手段２０ｃが非作用状態にあるので、二重吊り索１１の繰り出しに伴って入出庫レベルＮまで下降し、下降限ストッパー７ｃで受け止められる。従って、当該上側昇降車両支持台２Ｃに対して車両の自走による積み下ろし作業を行うことが出来る。この入出庫レベルＮまで下ろされた上側昇降車両支持台２Ｃを元の上側支持レベルＵまで戻すときは、二重吊り索１１を巻き取り駆動すれば良い。このとき下側昇降車両支持台３Ａ，３Ｂは、作用状態の各別上昇阻止手段２２ａ，２２ｂで上昇を制止され、下側昇降車両支持台３Ｃは、作用状態の一括上昇阻止手段２３で上昇を制止されるので、入出庫レベルＮまで下降している上側昇降車両支持台２Ｃのみが上側支持レベルＵまで引き上げられる。
【００３２】
他の下側昇降車両支持台３Ａ，３Ｂを入出庫レベルＮに引き上げる場合、或いは他の上側昇降車両支持台２Ａ，２Ｂを入出庫レベルＮまで下ろす場合も、これら作業対象の昇降車両支持台に対応する入出庫レベルＮに空きスペースを確保すべく横行車両支持台１Ａ，１Ｂを横動させた後、上記の要領で一括下降阻止手段２１、一括上昇阻止手段２３、及び落下防止手段２４を切り換え操作すると共に、二重吊り索１１の巻き取り繰り出し駆動を行えば良いことは、容易に理解されよう。
【００３３】
尚、上記実施形態では、下側支持レベルＤにある下側昇降車両支持台３Ａ〜３Ｃに対する一括上昇阻止手段２３の係留フック３１ａ〜３１ｃと、入出庫レベルＮにある下側昇降車両支持台３Ａ〜３Ｃに対する落下防止手段２４の係留フック３５ａ〜３５ｃとを別々に配設したが、図８に示すように、落下防止手段２４の係留フック３５ａ〜３５ｃで一括上昇阻止手段２３の係留フックを兼用させることも出来る。
【００３４】
即ち、各下側昇降車両支持台３Ａ〜３Ｃの後端部に、入出庫レベルＮの直下位置に達する立ち上がり部材５３を立設し、作用状態にある落下防止手段２４の係留フック３５ａ〜３５ｃが下側支持レベルＤにある下側昇降車両支持台３Ａ〜３Ｃの前記立ち上がり部材５３の上側に隣接するように構成することにより、作用状態にある落下防止手段２４の係留フック３５ａ〜３５ｃは、前記立ち上がり部材５３を介して、下側支持レベルＤにある下側昇降車両支持台３Ａ〜３Ｃの上昇を阻止することが出来る。
【００３５】
図９〜図１１は、上記実施形態に於ける各別上昇阻止手段２２ａ〜２２ｃに関する新規な具体構造を示している。即ち、先の実施形態では、固定フレーム側の各下側昇降車両支持台３Ａ〜３Ｃに対応する３箇所に各別上昇阻止手段２２ａ〜２２ｃが設けられ、この各別上昇阻止手段２２ａ〜２２ｃを横行車両支持台１Ａ，１Ｂの横動に伴って、真上に横行車両支持台が位置しない１つの各別上昇阻止手段のみが自動的に非作用状態に切り換えられるように構成されている（非特許文献１参照）が、この図９〜図１１に示す実施形態では、各下側昇降車両支持台３Ａ〜３Ｃに設けられた立ち上がりフレーム５４と、各横行車両支持台１Ａ，１Ｂに設けられた中継部材５５と、上昇阻止用固定フレーム５６とで、前記各別上昇阻止手段２２ａ〜２２ｃに代わる新規な各別上昇阻止手段５７を構成している。
【００３６】
具体的に説明すると、各下側昇降車両支持台３Ａ〜３Ｃの後端部には、左右一対の支柱部材５４ａ，５４ｂと当該両支柱部材５４ａ，５４ｂの上端間に架設された水平部材５４ｃとで構成された門形の立ち上がりフレーム５４が立設されている。又、各横行車両支持台１Ａ，１Ｂの後端部には、下側昇降車両支持台３Ａ〜３Ｃの真上位置にあるときに前記立ち上がりフレーム５４の水平部材５４ｃの真上に位置し且つ当該水平部材５４ｃより左右両側に突出する長さの水平の中継部材５５が、その左右両端近傍位置から前方に突設された左右一対のブラケット５５ａと左右一対の球面ジョイント５５ｂとを介して一定範囲内で上下揺動自在に支承され、前記左右一対のブラケット５５ａに軸支された車輪５５ｃが、当該横行車両支持台１Ａ，１Ｂの後側左右一対の車輪５ｂ（図４参照）を支持するガイドレール４ｂ上に転動可能に載置されている。又、各横行車両支持台１Ａ，１Ｂが下側昇降車両支持台３Ａ〜３Ｃの真上位置にあるとき、前記中継部材５５の両端の上側で且つ各下側昇降車両支持台３Ａ〜３Ｃが入出庫レベルＮに上昇するときにその門形の立ち上がりフレーム５４と干渉しない位置に上昇阻止用固定ストッパー５６が配設されている。これら各上昇阻止用固定ストッパー５６は、図１０の仮想線及び図１１に示すように、固定フレーム側の支柱５９に付設することが出来る。
【００３７】
而して、上記構成により前記中継部材５５は、真下位置にある下側昇降車両支持台３Ａ〜３Ｃの立ち上がりフレーム５４の水平部材５４ｃと、前記上昇阻止用固定ストッパー５６との間で、これら両者に対し小間隙を隔てて配置されルことになる。尚、中継部材５５の両端下側には、立ち上がりフレーム５４の水平部材５４ｃの両端上側面に対面するゴムクッション５５ｄが付設されると共に、中継部材５５の両端上側には、各上昇阻止用固定ストッパー５６の下側面に対面するゴムクッション５５ｅが付設されている。
【００３８】
上記の各別上昇阻止手段５７に於いては、各下側昇降車両支持台３Ａ〜３Ｃが下降限位置、即ち、図１に示す下側支持レベルＤの下降限ストッパー面８ａ〜８ｃで支持されているとき、その立ち上がりフレーム５４と横行車両支持台１Ａ，１Ｂ側の中継部材５５とは上下に互いに離れているので、横行車両支持台１Ａ，１Ｂを立ち上がりフレーム５４に干渉されずに円滑に横動させることが出来る。そして、各下側昇降車両支持台３Ａ〜３Ｃを二重吊り索１１の巻き上げにより上昇させるとき、真上に横行車両支持台１Ａ，１Ｂが位置する２台の下側昇降車両支持台は、一体に上昇する立ち上がりフレーム５４が横行車両支持台１Ａ，１Ｂ側の中継部材５５を、ゴムクッション５５ｄを介して突き上げ、当該中継部材５５を球面ジョイント５５ｂを支点に上方に揺動させて、その上側の左右一対の上昇阻止用固定ストッパー５６にゴムクッション５５ｅを介して圧接させるので、立ち上がりフレーム５４、中継部材５５、及び上昇阻止用固定ストッパー５６を介して上昇を制止され、下側支持レベルＤに留められる。
【００３９】
即ち、上記構成の各別上昇阻止手段５７によれば、下側昇降車両支持台３Ａ〜３Ｃの上昇制止は上昇阻止用固定ストッパー５６で行い、横行車両支持台１Ａ，１Ｂには上向きに突き上げ力が作用しないので、当該横行車両支持台１Ａ，１Ｂの安定性を高めることが出来ると共に、ガイドレール４ｂに対する車輪５ｂの上下動に伴う異音の発生も解消する。しかも、各下側昇降車両支持台３Ａ〜３Ｃに対応させて固定フレーム側にアクチェーターで切り換えられる各別上昇阻止手段を配設する場合と比較して、設備全体を安価に構成することが出来ると共に、制御も容易になる。
【００４０】
尚、図９及び図１１に示す横行車両支持台１Ａ，１Ｂには、その後端部に、前記下側昇降車両支持台３Ａ〜３Ｃの立ち上がりフレーム５４と同様の門形の上側昇降車両支持台受け止め用フレーム５８が立設されており、当該フレーム５８により、上側支持レベルＵから下降する上側昇降車両支持台２Ａ〜２Ｃの内、横行車両支持台１Ａ，１Ｂの真上に位置する２台の上側昇降車両支持台を受け止めて、上側支持レベルＵに留めておくように構成されている。即ち、この上側昇降車両支持台受け止め用フレーム５８が、先の実施形態に於ける各別下降阻止手段２０ａ〜２０ｃに代わる各別下降阻止手段を構成している。
【００４１】
上記の実施形態では、入出庫レベルＮの上下に昇降車両支持台２Ａ〜３Ｃの支持レベルＵ，Ｄを備えた３層構造の駐車装置に於いて、上側昇降車両支持台２Ａ〜２Ｃと下側昇降車両支持台３Ａ〜３Ｃの全てを一つの昇降駆動手段、即ち、１系統の吊り索１１とその繰り出し引き込み手段１２とで各別に昇降駆動出来るように構成しているが、上側昇降車両支持台２Ａ〜２Ｃを各別に昇降駆動するための昇降駆動手段と、下側昇降車両支持台３Ａ〜３Ｃを各別に昇降駆動するための昇降駆動手段とを別々に設けることも出来る。この場合は、一括下降阻止手段２１や一括上昇阻止手段２３は不要である。又、入出庫レベルＮに対して上下何れかのみに昇降車両支持台を備えた２層構造の駐車装置として実施することも出来る。何れの構成を採用する場合でも、昇降車両支持台の内、横行車両支持台が在席しない空き位置に対応する１台の昇降車両支持台のみを入出庫レベルへ昇降可能にする切換手段は、上記実施形態や前記特許文献１〜３や非特許文献１に記載のものに限定されるものではない。勿論、入出庫レベルＮに配設される横行車両支持台１Ａ，１Ｂは、本発明に於いて必須のものではなく、入出庫レベルＮに横行車両支持台１Ａ，１Ｂが設けられない駐車装置としても実施出来る。例えば、上側昇降車両支持台２Ａ〜２Ｃのみを備えた駐車装置であって、入出庫レベルＮは地盤又はこれに代わる架設スラブとし、この入出庫レベルＮの内、上側昇降車両支持台が下降していない場所を必要に応じて車両格納スペースとして利用し、上側昇降車両支持台を入出庫レベルＮに下降させるときは、その場所にある車両を一旦出庫させるようにした駐車装置として実施することも出来る。
【００４２】
尚、図１、図７及び図８に例示した一括下降阻止手段２１、一括上昇阻止手段２３、及び落下防止手段２４、或いは図９〜図１１に例示した各別上昇阻止手段５７は、本発明に係る二重吊り索１１を利用した昇降車両支持台の昇降駆動手段とは異なる、従来周知の各種昇降駆動手段等、他の昇降駆動手段を採用した駐車装置にも活用することが出来るものである。
【００４３】
更に、吊り索の繰り出し引き込み手段は、実施形態に示した吊り索巻き取りドラム１４を使用するものに限定されない。例えば、固定フレーム側に設けられた回転案内輪に掛け回される側とは反対側の二重吊り索の端部（１本の吊り索の同一位置にある両端部）をシリンダー装置等で直線状に繰り出したり引き込んだりする形式の繰り出し引き込み手段であっても良いし、前記二重吊り索の端部（１本の吊り索の同一位置にある両端部）を固定フレーム側に固定し、当該二重吊り索の中間任意の位置に係合させた回転案内輪（同心状に並列する２つの案内輪）をシリンダー装置等で吊り索緊張方向と吊り索弛緩方向とに往復移動させる形式の繰り出し引き込み手段であっても良い。この場合は、１本の吊り索の両端を互いに接続してループ状に構成し、固定フレーム側に設けた２つの回転案内輪に前記ループ状吊り索を掛張し、両回転案内輪間の中間の二重吊り索で各昇降車両支持台を吊り下げると共に、当該中間の二重吊り索の任意の位置に係合させた回転案内輪（同心状に並列する２つの案内輪）をシリンダー装置等で吊り索緊張方向と吊り索弛緩方向とに往復移動させるように構成することも可能である。
【００４４】
【発明の効果】
本発明は以上のように実施し且つ使用することが出来るものであって、係る本発明の駐車装置によれば、繰り出し引き込みにより昇降車両支持台が昇降するように、並列する複数台の昇降車両支持台を連続して吊り下げる吊り索を、１本の吊り索を固定フレーム側に設けられた回転案内輪に掛け回して二重吊り索とし、その中間の二重吊り索で各昇降車両支持台を吊り下げる構成としたので、各昇降車両支持台を２本の吊り索で吊り下げることになり、１本の吊り索で吊り下げる構成と比較して、細くて安価な吊り索を使用することが出来、吊り索コストが削減出来るだけでなく、許容曲げ半径も小さくなるので、併用される多数個の回転案内輪として小径のものを利用することが出来、設備全体としてのコストダウンを図ることが出来る。しかも、二重吊り索の各吊り索部分は回転案内輪を経由して連続する１本の吊り索であるから、二重吊り索の各吊り索部分に均等に負荷を分散させることが出来、片側の吊り索部分に過大な負荷が作用して破断事故を招くというような問題も生じないので、安全に使用することが出来る。
【００４５】
尚、請求項２に記載の構成によれば、２本の吊り索で各昇降車両支持台を吊り下げる構成でありながら、従来通り１つの吊り索張力検出器を使用し、２本の吊り索全体に作用する張力を検出して昇降車両支持台の昇降位置検出を行い、それに基づいて吊り索の繰り出し引き込み制御を容易に行うことが出来る。
【００４６】
又、請求項３に記載の構成によれば、２本の吊り索で各昇降車両支持台を吊り下げる構成でありながら、その繰り出し引き込み手段としての吊り索巻き取りドラムの吊り索案内用嵌合溝を、従来のように互いに逆螺旋方向の二組の吊り索案内用嵌合溝を形成する場合と比較して、容易且つ安価に形成することが出来る。
【図面の簡単な説明】
【図１】装置全体の構成を、全ての昇降車両支持台がホームポジションにある状態で説明する概略正面図である。
【図２】装置全体の構成を、１台の下側昇降車両支持台が入出庫レベルに上げられた状態で説明する概略正面図である。
【図３】装置全体の構成を、１台の上側昇降車両支持台が入出庫レベルに下ろされた状態で説明する概略正面図である。
【図４】装置全体の構成を説明する概略側面図である。
【図５】Ａ図は吊り索繰り出し引き込み手段の詳細を示す一部切欠き側面図であり、Ｂ図はその吊り索巻き取りドラムの正面図である。
【図６】Ａ図は吊り索張力検出器の詳細を示す平面図であり、Ｂ図はその側面図である。
【図７】一括下降阻止手段、一括上昇阻止手段、及び落下防止手段を説明する側面図である。
【図８】一括上昇阻止手段と落下防止手段の別実施形態を説明する側面図である。
【図９】一括上昇阻止手段の別実施形態に於ける中継部材を説明する横行車両支持台の一部切欠き背面図である。
【図１０】同上別実施形態に於ける立ち上がりフレーム及び上昇阻止用固定フレームを説明する下側昇降車両支持台の一部切欠き背面図である。
【図１１】同上別実施形態の全体を説明する要部の一部縦断側面図である。
【符号の説明】
１Ａ，１Ｂ 横行車両支持台
２Ａ〜２Ｃ 上側昇降車両支持台
３Ａ〜３Ｃ 下側昇降車両支持台
４ａ，４ｂ 横行車両支持台のガイドレール
６ａ〜６ｃ 上側昇降車両支持台の上昇限ストッパー
７ａ〜７ｃ 上側昇降車両支持台の下降限ストッパー
Ｎ 入出庫レベル
Ｕ 上側支持レベル
Ｄ 下側支持レベル
８ａ〜８ｃ 下側昇降車両支持台の下降限ストッパー面
９ａ〜９ｃ 下側昇降車両支持台の上昇限ストッパー
１１ 二重吊り索
１１ａ，１１ｂ 二重吊り索の両端
１１ｃ 二重吊り索のＵターン部
１２ 吊り索繰り出し引き込み手段
１４ 吊り索巻き取りドラム
１５ ドラム駆動用モーター
１６ 吊り索張力検出器
１７ａ〜１８ｃ 被吊下用回転案内輪
１９ａ〜１９ｈ 吊下用回転案内輪
２０ａ〜２０ｃ 各別下降阻止手段
２１ 一括下降阻止手段
２２ａ〜２２ｃ，５７ 各別上昇阻止手段
２３ 一括上昇阻止手段
２４ 落下防止手段２４
２５ａ〜２５ｄ，２９，３１ａ〜３１ｄ，３５ａ〜３５ｄ，３８ 係留フック２８，３４ 係留フック駆動手段
４０ 二重吊り索Ｕターン部案内用回転案内輪
４４ａ，４４ｂ 並列する二条の吊り索嵌合溝
４７ 吊り索張力検出器の被検出可動体
４８ａ〜４８ｃ 同検出器のセンサー
５４ 立ち上がりフレーム（各別上昇阻止手段）
５５ 中継部材（各別上昇阻止手段）
５６ 上昇阻止用固定ストッパー（各別上昇阻止手段）[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a parking device in which an arbitrary one of a plurality of parallel elevating vehicle supports can be moved up and down to a loading / unloading level.
[0002]
[Prior art]
As the parking device as described above, the traversing vehicle support is not present among the ascending and descending vehicle supports that allow any one of a plurality of parallel ascending and descending vehicle supports to be able to ascend and descend to the entry / exit level. A switching means for allowing only one elevating vehicle support corresponding to the empty position to be able to move up and down to the entry / exit level, and a plurality of elevating vehicle supports arranged in parallel so that the elevating vehicle support is raised and lowered by extension and retraction. There is known a structure in which a hanging cable to be suspended and extending and a pulling-in and pulling-out means of the hanging rope are provided, and a plurality of parallel lifting and lowering vehicle support bases can be driven up and down by one hanging-line pulling and pulling-in means. I have.
[0003]
As described in Patent Literatures 1 to 3 and Non-Patent Literature 1, for example, the hanging rope (for example, a wire rope) in the parking device having the above configuration has one end locked to the fixed frame side and the other. An end is locked to the extension pulling-in means, and a suspension cable between both ends is provided with a position-fixed rotation guide wheel pivotally supported on a fixed frame side and a suspension rotation guide pivotally supported on each lifting vehicle support base side. The lifting and lowering vehicle support is suspended by suspending the respective lifting and lowering vehicle supports by lifting the lifting and lowering vehicle support by pulling in the hanging ropes by the extension and retraction means, and extending the lifting and lowering ropes by the extension and retraction means. It is configured to lower the table. Therefore, when suspending each elevating vehicle support with one suspension cable, a large suspension cable having a tensile strength corresponding to the load applied to the one suspension cable is required, and the suspension cable cost is simply high. Not only that, but also the permissible bending radius becomes large, so that a large number of rotary guide wheels used in combination also have a large diameter, resulting in very high equipment costs. Of course, two thin suspension cables can be used together, but it is difficult to apply a load equally to each suspension cable, and it has not been practically used in terms of safety.
[0004]
[Patent Document 1]
JP 2000-265697 A
[Patent Document 2]
JP-A-2002-61403
[Patent Document 3]
Japanese Patent No. 3037652
[Non-patent document 1]
Japanese Patent Application No. 2002-87306
[0005]
[Means for Solving the Problems]
An object of the present invention is to provide a parking apparatus capable of solving the above-described conventional problems, and the means is provided with a reference numeral of an embodiment described later, and a plurality of parking apparatuses are provided. Switching means for enabling any one of the parallel ascending and descending vehicle support bases 2A to 3C to ascend and descend to the loading / unloading level N (separate descent prevention means 20a to 20c, collective descent prevention means 21, and individual ascent prevention means 22a And a plurality of parallel lift vehicles 2A to 2C and 3A to 3C are suspended so that the lift vehicles 2A to 3C move up and down by pulling in and pulling out. A parking device provided with a cable 11 and a pulling-out means 12 for pulling out the cable 11, wherein the cable 11 hangs one cable 11 on a rotation guide wheel 40 provided on a fixed frame side. Turn two Suspension obtained by the search, and has a structure in which suspended the elevator car support base 2A~3C in between the double slings 11.
[0006]
In implementing the present invention having the above-described configuration, the rotation guide wheel 40 may be pivotally supported at a fixed position on the fixed frame side, but the movable guide wheel 40 is urged by a spring 46 in a direction to tension the hanging cable 11. When the hanging rope tension detector 16 including the body 47 and the sensors 48a to 48c is used together, the hanging rope tension detector 16 can be supported by the detected movable body 47 of the hanging rope tension detector 16.
[0007]
When the feeding and pulling-in means 12 is composed of a hanging rope winding drum 14 and a motor 15 for driving the drum 14 to rotate forward and backward, the hanging rope winding drum 14 has two parallel hanging ropes. The fitting grooves 44a and 44b can be formed spirally from one axial end of the drum 14 to the other axial end.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. First, a basic configuration of the entire parking device will be described with reference to FIGS. 1 to 4. 3 levels, 2 floors above ground and 1 floor below ground, comprising an entry / exit level N substantially equal to the level, an upper support level U above the entry / exit level N, and a lower support level D below the entry / exit level N This is a parking device having a layered structure, in which two traversing vehicle supports 1A and 1B are disposed at the entrance / exit level N, and three elevating vehicle supports are provided at the upper support level U and the lower support level D, respectively. The tables 2A to 2C and 3A to 3C are arranged side by side.
[0009]
The traversing vehicle supports 1A and 1B have front and rear ends supported on guide rails 4a and 4b on the fixed frame side via wheels 5a and 5b, respectively, and at least one of the wheels 5a and 5b is fixed. A driving unit for driving to rotate in the reverse direction is mounted, and is configured to be capable of self-propelling in an arbitrary left and right direction.
[0010]
Although the upper lifting vehicle support bases 2A to 2C and the lower lifting vehicle support bases 3A to 3C are not shown, guide rollers are respectively supported on the rear end side, and the guide rollers are provided on the fixed frame side. Are configured so as to be able to ascend and descend while maintaining the vehicle support posture respectively. The upper ascending and descending vehicle support bases 2A to 2C are at the upper support level U. It is possible to ascend and descend between the ascending limit stoppers 6a to 6c on the fixed frame side and the ascending limit stoppers 7a to 7c on the fixed frame side attached to the loading / unloading level N, and the lower ascending and descending vehicle support bases 3A to 3C. 3C can move up and down between the lower limit stopper surfaces 8a to 8c at the lower support level D and the upper limit stoppers 9a to 9c at the entry / exit level N.
[0011]
The lower limit stoppers 7a to 7c for the upper ascending and descending vehicle supports 2A to 2C are guide rails 4a and 4b (actually rail materials are laid) for the traversing vehicle support that is installed at the loading / unloading level N. Horizontal section steel). Also, the lower limit stopper surfaces 8a to 8c for the lower ascending and descending vehicle support bases 3A to 3C are shown in FIG. 1 to FIG. 3 as having special projections for easy understanding. As shown in FIG. 4, it can be constituted by the floor surface of the underground pit 10 forming the vehicle storage space at the lower support level D. Further, the ascending limit stoppers 9a to 9c can be shared by a rear guide rail 4b (actually, a horizontal section steel on which rail materials are laid) for a traversing vehicle support erected at the entry / exit level N.
[0012]
The lifting and lowering driving means of the upper and lower lifting vehicle supports 2A to 3C includes a hanging cable 11 and a pulling-out and pulling-in means 12 of the hanging cable 11. The feeding / pulling-out means 12 is supported at one end of the upper fixed frame 13 and includes a hanging rope winding drum 14 and a motor 15 for driving the drum 14 to rotate forward and reverse. The hanging cable 11 has one end locked to the hanging cable winding drum 14 and the other end locked to a hanging cable tension detector 16 attached to one end of the upper fixed frame 13. At the middle part, all the lift vehicle support bases 2A to 3C are suspended.
[0013]
More specifically, a pair of left and right suspended rotation guide wheels 17a to 17c and 18a to 18c are pivotally supported at the rear ends of the lift vehicle supports 2A to 3C. The suspension rotation guide wheels 19a to 19h are pivotally supported in the arrangement as shown in the drawing, and the suspension cable 11 hanging from the suspension cable winding drum 14 moves between the drum 14 and the suspension rotation guide wheel 19a. The lower ascending and descending vehicle support bases 3A to 3C are sequentially connected via the suspended rotation guide wheels 18a to 18c between the suspension rotation guide wheels 19a and 19b and between the suspension rotation guide wheels 19b and 19c, respectively. After the suspension, a U-turn is made via the suspension rotation guide wheel 19d, and subsequently, between the suspension rotation guide wheels 19e and 19f, between the suspension rotation guide wheels 19f and 19g, and between the suspension rotation guide wheels 19f and 19g. Rotation for suspension between guide wheels 19g and 19h Hanging upper elevator car support base 2A~2C sequentially through the inner ring 17a to 17c, and is engaged with the rope tension detector 16 terminal hanging.
[0014]
A switching means is provided for enabling only one elevating vehicle support corresponding to an empty position where the traversing vehicle supports 1A and 1B are not present to be moved up and down to the entry / exit level N among the elevating vehicle supports 2A to 3C. Have been. FIGS. 1 to 3 schematically show the switching means described in Non-Patent Document 1, and the switching means is a separate descent prevention means corresponding to each of the upper ascending and descending vehicle support bases 2A to 2C. 20a-20c, collective lowering prevention means 21 acting on all of the upper lifting vehicle support bases 2A-2C, separate lifting prevention means 22a-22c corresponding to each of the lower lifting vehicle support bases 3A-3C, and lower side In the present embodiment, there is further provided a drop prevention means 24 for the lower ascending and descending vehicle supports 3A to 3C raised to the entry / exit level N. It is attached.
[0015]
As each of the separate descent inhibiting means 20a to 20c and each of the ascending inhibition means 22a to 22c, besides the one described in Non-Patent Document 1, the conventionally known ones described in Patent Documents 1 to 3 can be used. In any case, the separate descent prevention means 20a to 20c and the respective descent prevention means 22a to 22c correspond to empty positions (positions where the traversing vehicle support tables 1A and 1B are not present) at the entry / exit level N. Is switched to a non-operating state that allows the ascending and descending vehicle supports 2A to 3C to move up and down, and the means corresponding to the position where the traversing vehicle supports 1A and 1B are seated prevents the ascending and descending vehicle supports 2A to 3C from moving up and down. What is necessary is just to be able to switch to the operating state of Accordingly, a configuration in which the means 20a to 20c and 22a to 22c having the switching actuators respectively are arranged at fixed positions corresponding to the respective lifting and lowering vehicle supports 2A to 3C may be employed. As described in Patent Documents 1 to 3 and Non-Patent Document 1, a configuration in which the means 20a to 20c and 22a to 22c are provided on the traversing vehicle supports 1A and 1B and the lower ascending and descending vehicle supports 3A to 3C, It is desirable to adopt a configuration in which the means 20a to 20c and 22a to 22c disposed at fixed positions corresponding to the respective lifting and lowering vehicle supports 2A to 3C are switched by the traversing vehicle supports 1A and 1B.
[0016]
As shown in FIGS. 1 and 7, the collective lowering prevention means 21 separates the upper lifting vehicle support bases 2A to 2C located at the upper support level U from the level at which the lifting is stopped by the lifting limit stoppers 6a to 6c. A plurality of mooring hooks 25a to 25d are provided to collectively stop the lowering at an intermediate level from the level received by the lowering prevention means 20a to 20c, and support the left and right sides of the rear end side of each of the upper ascending and descending vehicle support bases 2A to 2C. A common drive shaft 26 for interlockingly driving the mooring hooks 25a to 25d, and drive means (motor, cylinder, solenoid, etc.) 28 for driving the common drive shaft 26 to rotate forward and reverse via a link mechanism 27 and the like. By the driving means 28, an operating state (a state in which the mooring hooks 25a to 25d stop the lowering of the upper ascending and descending vehicle supports 2A to 2C) and a non-operating state (each Hook 25a~25d state to allow the lowering of the upper elevator car support base 2A-2C) and switched it is possible.
[0017]
As shown in FIG. 7, a plurality of mooring means 29 (e.g., the same as the mooring hooks 25a to 25d) for supporting the front ends of the upper and lower vehicle support bases 2A to 2C can be provided. In this case, an actuator for operating each of the mooring means 29 separately may be provided, but each mooring means 29 may be linked to each of the mooring hooks 25a to 25d located behind it by a link mechanism 30 or the like. .
[0018]
As shown in FIGS. 1 and 7, the collective ascent prevention means 23 lowers the lower ascending and descending vehicle support bases 3A to 3C located at the lower support level D to a level slightly lower than the level received by the individual ascent prevention means 20a to 20c. A plurality of mooring hooks 31a to 31d supporting the rear left and right sides of each of the lower ascending and descending vehicle support bases 3A to 3C and interlocking driving of these mooring hooks 31a to 31d. And a driving unit (motor, cylinder, solenoid, etc.) 34 for driving the common driving shaft 32 to rotate forward and reverse via a link mechanism 33 and the like. A state in which the mooring hooks 31a to 31d prevent the lower elevating vehicle support bases 3A to 3C from rising, and a non-operating state (each of the mooring hooks 31a to 31d are lower elevating vehicle support bases 3A). Forgive the rise of 3C state) and switched it can be.
[0019]
As shown in FIGS. 1 and 7, the fall prevention means 24 lowers the lower ascending and descending vehicle support bases 3A to 3C raised to the entry / exit level N from the level at which the ascending limit stoppers 9a to 9c stop the ascending. A plurality of mooring hooks 35a to 35d supporting the rear end right and left sides of each of the lower ascending and descending vehicle support bases 3A to 3C, and a common drive for interlocking and driving these mooring hooks 35a to 35d are received at a slightly lower level. A shaft 36 and a drive means (motor, cylinder, solenoid, etc.) 34 for driving the common drive shaft 36 to rotate forward and reverse via a link mechanism 37 and the like. The state where the mooring hooks 35a to 35d stop the lowering of the support bases 3A to 3C from the entrance / exit level N, and the non-operating state (the lower elevating vehicle support descending from the entrance / exit level N). Each mooring state in which the hook 35a~35d does not interfere) and switched it can be to stand 3A~3C.
[0020]
In this embodiment, the common ascending prevention means 23 and the fall prevention means 24 are driven by a common driving means 34 so that the working state and the non-working state of the two means 23 and 34 are reversed. Although it is configured, it is also possible to provide exclusive driving means for the collective ascent prevention means 23 and the fall prevention means 24, respectively. Further, in this embodiment, as shown in FIG. 7, a plurality of mooring means 38 (for example, the mooring hooks 35a to 35c) which support the front end side of each of the lower ascending and descending vehicle supports 3A to 3C raised to the entrance / exit level N. 35d). In this case, an actuator for operating each of the mooring means 38 separately may be provided. Alternatively, each of the mooring means 38 may be linked to each of the mooring hooks 35a to 35d located behind the mooring means 38 by a link mechanism 39 or the like. .
[0021]
The hanging cable 11 is formed by folding one wire rope on the hanging cable tension detector 16 side to form a double hanging cable. Therefore, as shown in FIG. 5, both ends 11a and 11b of the double hanging cable 11 are locked by the hanging cable winding drum 14 of the feeding / retracting means 12, and as shown in FIG. The portion 11c is wrapped around a rotation guide wheel 40 provided on the hanging rope tension detector 16. Therefore, each of the suspended rotation guide wheels 17a to 18c and the suspension rotation guide wheels 19a to 19h around which the double suspension cable is hung has two concentric guide wheels arranged in a concentric manner. It is a double guide wheel.
[0022]
More specifically, as shown in FIG. 5, the hanging rope winding drum 14 has a small tooth wheel 41 on the motor 15 side and a large tooth wheel 43 interlockingly connected by a chain 42 fixed to one end. On its peripheral surface, two parallel hanging rope fitting grooves 44a and 44b are formed spirally from one axial end to the other axial end of the drum 14. Thus, both ends 11a and 11b of the double hanging cable 11 are fixed to the end face plate 14a at one end (the side adjacent to the large tooth wheel 43) of the drum 14 via appropriate fasteners 45a and 45b. Then, the drum 14 is pulled out to the outside of one end of the drum 14 and spirally wound so as to fit in the two parallel hanging rope fitting grooves 44a and 44b. 14b is a support shaft of the hanging rope winding drum 14. On the other hand, as shown in FIG. 6, the hanging cable tension detector 16 includes a detected movable body 47 urged by a spring 46 in a direction to tension the double hanging cable 11, and sensors 48a to 48c. The rotation guide wheel 40 is supported at the end of the movable body 47 to be detected. That is, the detected movable body 47 includes a rod 47a that is supported by the support frame 49 so as to be able to move laterally and a magnetic body 47b to be detected that is coupled to the outer end of the rod 47a. A bearing body 50 on which the rotation guide wheel 40 is supported is connected to the outer end of the magnetic body 47b. The spring 46 is interposed between the support frame 49 and a spring receiving seat 51 attached to the inner end of the rod 47a. Reference numeral 52 denotes a sensor support frame attached to the support frame 49. Each of the sensors 48a to 48c attached to the sensor support frame 52 so as to be position-adjustable is turned on and off by the detection target magnetic body 47b. From the ON / OFF state of the sensors 48a to 48c, the tension acting on the hanging cable 11, in other words, the positions of the lifting vehicle supports 2A to 3C are detected.
[0023]
In the following, the method of use and the operation will be described. The loading / unloading operation of the traversing vehicle supports 1A and 1B at the entrance / exit level N can be freely performed by the vehicle running by itself. The vehicle for any one of the upper lifting vehicle supports 2A to 2C at the upper support level U or any one of the lower lifting vehicle supports 3A to 3C at the lower support level D When performing the unloading work by self-propelled, there must be an empty space at the entry / exit level N at a position directly below or directly above the lifting / lowering vehicle support of the work object. When the traversing vehicle support 1A or 1B is at a position directly below or directly above, the traversing vehicle support 1A or 1B is first moved sideways to secure the empty space.
[0024]
For example, in FIG. 1, when raising the lower elevating vehicle support 3C to the entry / exit level N, the traversing vehicle support 1B, which is seated directly above the lower elevating vehicle support 3C, is moved to the right in the figure. At this time, as described above, the separate descent prevention means 20a to 20c and the respective ascent prevention means 22a to 22c are moved to the traversing vehicle support bases 1A and 1B or the lower ascending and descending vehicle support. When the configuration provided on the tables 3A to 3C and the switching actuators for the means 20a to 20c and 22a to 22c are configured by the traversing vehicle support tables 1A and 1B, the means 20a to 20c and 22a to 22c move up and down. When a load is applied from the vehicle support bases 2A to 3C, the traversing vehicle support bases 1A and 1B cannot be moved smoothly and smoothly. Therefore, when the traversing vehicle support bases 1A and 1B are moved sideways. Is shown in Figure 1 In the initial state, all the upper ascending and descending vehicle supports 2A to 2C are received by the collective lowering prevention means 21 and all the lower ascending and descending vehicle supports 3A to 3C are received by the lower limit stopper surfaces 8a to 8c. There is a condition.
[0025]
A method for obtaining the above initial state is that all the lower ascending and descending vehicle support bases 3A to 3C are received by the descent limit stopper surfaces 8a to 8c, the collective ascent prevention means 23 is switched to the operating state, and the collective ascending prevention means 21 Is switched to the non-operating state, the hanging rope winding drum 14 of the feeding / retracting means 12 is rotationally driven by the motor 15 in the hanging rope winding direction, and the double hanging rope 11 is wound by the drum 14. Then, all the lower ascending and descending vehicle supports 3A to 3C are raised to the positions where they are stopped by the collective ascending prevention means 23, and all of the upper ascending and descending vehicle supports 2A to 2C are stopped by the ascending limit stoppers 6a to 6c. (At this time, the state in which the tension detector 16 shown in FIG. 6 detects the allowable maximum tension, that is, the sensors 48a and 48c are turned on, and Over 28b only is OFF). Thereafter, the hanging rope winding drum 14 is driven to rotate in the hanging rope winding direction or is free in a state where the collective lowering prevention means 21 is switched to the operating state. As a result, all the lift vehicle supports 2A to 3C descend by gravity, the upper lift vehicle supports 2A to 2C are received by the collective lowering prevention means 21, and the lower lift vehicle supports 3A to 3C are lowered by the lower limit stopper. The initial state is received by the surfaces 8a to 8c (at this time, the state where the tension detector 16 shown in FIG. 6 detects the minimum tension, that is, the sensors 48b and 48c are turned on and only the sensor 28a is turned off).
[0026]
In the above initial state, each of the separate descent prevention means 20a to 20c and the upper ascending and descending vehicle support bases 2A to 2C, and each of the respective ascending prevention means 22a to 22c and the lower ascending and descending vehicle support bases 3A to 3C are small gaps from each other. , The traversing vehicle supports 1A and 1B can be moved sideways without any problem even if the above-described configuration is adopted. As shown by the phantom line in FIG. 1, the traversing vehicle support 1B is moved to the right in the figure to secure an empty space right above the lower elevating vehicle support 3C to be worked. Then, each of the traversing vehicle supports 1A, 1B is located at a position directly above the lower ascending and descending vehicle supports 3A, 3B (just below the upper ascending and descending vehicle supports 2A, 2B). On the other hand, with the lateral movement of the traversing vehicle support 1B, of the respective lowering prevention means 20a to 20c and the respective ascent prevention means 22a to 22c, of the entry / exit level N where the traversing vehicle support 1A, 1B is not present. Only the means 20c and 22c corresponding to the upper and lower portions of the empty space are automatically switched to the non-operation state.
[0027]
Thereafter, the hanging rope winding drum 14 is driven to rotate in the hanging rope winding direction by the motor 15 in a state where the collective lifting prevention means 23 is switched to the non-operating state, and the double hanging rope 11 is wound by the drum 14. Then, when all of the ascending and descending vehicle supports 2A to 3C are driven to ascend, as shown in FIG. 2, all of the upper ascending and descending vehicle supports 2A to 2C rise again to the positions where they are stopped by the ascending limit stoppers 6a to 6c. Of the lower ascending and descending vehicle supports 3A to 3C, the ascending and descending vehicle supports 3A and 3B are prevented from ascending by the separate ascending prevention means 22a and 22b in the operating state, and only the ascending and descending vehicle support 3C to be worked is provided. It rises to the position where it is stopped by the ascending limit stopper 9c at the entry / exit level N (at this time, the state in which the tension detector 16 shown in FIG. 6 detects the maximum allowable tension, that is, the sensors 48a and 48c And N, only the sensor 28b is OFF). At this time, the fall prevention means 24 at the entry / exit level N is automatically switched to the operating state in conjunction with the switching of the collective ascending prevention means 23 to the non-operating state. Before the coming lower ascending and descending vehicle support 3C interferes with the fall prevention means 24 in the operation state, it is necessary to return the collective rise prevention means 23 to the operation state and switch the fall prevention means 24 to the non-operation state. .
[0028]
If the lower elevating vehicle support 3C of the work object is raised to the entry / exit level N, the unloading operation of the lower elevating vehicle support 3C by the self-propelled vehicle can be performed. Before the fall, the fall prevention means 24 is switched to the operating state (the collective ascending prevention means 23 is switched to the non-operation state). It is possible to prevent the lower elevating vehicle support 3C suspended from the suspension cable 11 from falling from the entrance / exit level N by receiving the mooring hooks 35c and 35d of the fall prevention means 24. At this time, the collective ascent prevention means 23 is automatically switched to the non-operation state in conjunction with the switching of the fall prevention means 24 to the operation state.
[0029]
When lowering the lowering / lowering vehicle support 3C of the loading / unloading level N where the vehicle loading / unloading operation is completed to the original lower support level D, the fall prevention means 24 is switched to the non-operating state (the collective ascending prevention means 23 operates. In this state, the hanging rope winding drum 14 is rotationally driven by the motor 15 in the direction in which the hanging rope is pulled out, and the double hanging rope 11 is drawn out from the drum 14 and all the lifting vehicle support bases 2A to 3C are moved. Is lowered by gravity. As a result, all the upper lifting vehicle supports 2A to 2C are received by the collective lowering prevention means 21 in the operating state, stay at the upper support level U, and have been raised to the loading / unloading level N. 3C is lowered to the lower limit position where it is received by the lower limit stopper surface 8c of the lower support level D. The other lower ascending and descending vehicle supports 3A, 3B slightly descend from the respective ascending inhibiting means 22a, 22b in the operating state, and are received by the descending end stopper surfaces 8a, 8b, respectively. That is, the state returns to the initial state shown in FIG.
[0030]
When lowering the upper elevating vehicle support 2C in place of the lower elevating vehicle support 3C into the empty space secured at the entry / exit level N and performing the unloading operation by the self-propelled operation of the vehicle, similar to the above operation, From the initial state, the traversing vehicle support 1B is moved to the right in FIG. 1 to secure an empty space at the entry / exit level N immediately below the upper lifting vehicle support 2C to be worked. In the operating state, all the lifting vehicle supports 2A to 3C are once raised by winding up the double suspension cable 11, and the lower lifting vehicle supports 3A to 3C are directly below the empty space of the entrance / exit level N. Is stopped at the lower support level D by the collective ascent prevention means 23, and the remaining lower ascending and lowering vehicle supports 3A and 3B are respectively raised in the operating state. Blocking means 22a, 2 Fastened to the lower support level D to stop the rise in b, the upper elevator car support base 2A~2C to stop rising at a rising limit stopper 6 a to 6 c, is slightly floated from the batch falling prevention means 21.
[0031]
In the above state, after switching the collective lowering prevention means 21 to the non-operating state, by pulling out the double hanging cable 11, all the ascending and descending vehicle supports 2A to 3C are lowered, as shown in FIG. The lower ascending and descending vehicle supports 3A to 3C are again received by the lower limit stopper surfaces 8a to 8c of the lower supporting level D, and the traversing vehicle supports 1A and 1B are located directly below the upper ascending and descending vehicle supports 2A to 2C. The upper lift vehicle supports 2A, 2B located are received by the respective lowering prevention means 20a, 20b in the operating state and remain at the upper support level U, but the upper lift vehicle whose empty entry / exit level N is an empty space. Since the separate lowering prevention means 20c at that position is in a non-operating state, the support base 2C is lowered to the loading / unloading level N as the double hanging cable 11 is extended, and is received by the lower limit stopper 7c. It is fit. Therefore, it is possible to carry out the unloading work by the self-propelled movement of the vehicle on the upper elevating vehicle support 2C. In order to return the upper lifting / lowering vehicle support base 2C lowered to the entrance / exit level N to the original upper support level U, the double suspension cable 11 may be wound and driven. At this time, the lower ascending and descending vehicle support bases 3A and 3B are prevented from rising by the respective ascending prevention means 22a and 22b in the operating state, and the lower ascending and descending vehicle support base 3C is lifted by the collective ascending prevention means 23 in the operating state. Since the suspension is stopped, only the upper ascending and descending vehicle support base 2C that is lowered to the entry / exit level N is raised to the upper support level U.
[0032]
When raising the other lower lifting vehicle supports 3A, 3B to the loading / unloading level N, or lowering the other upper lifting vehicle support 2A, 2B to the loading / unloading level N, the work target lifting vehicle support is also used. After the traversing vehicle support bases 1A and 1B are traversed to secure an empty space at the corresponding entry / exit level N, the collective lowering preventing means 21, the collective ascending prevention means 23, and the falling prevention means 24 are switched in the above-described manner. It will be easily understood that it is sufficient to carry out the winding and unwinding drive of the double hanging cable 11 together with the operation.
[0033]
In the above embodiment, the mooring hooks 31a to 31c of the collective ascent prevention means 23 with respect to the lower ascending and descending vehicle supports 3A to 3C at the lower supporting level D, and the lower ascending and descending vehicle support 3A at the entry / exit level N are set. Although the mooring hooks 35a to 35c of the fall prevention means 24 are separately arranged with respect to 3C, the mooring hooks of the collective ascending prevention means 23 are also used as the mooring hooks 35a to 35c of the fall prevention means 24 as shown in FIG. It can also be done.
[0034]
That is, at the rear end of each of the lower ascending and descending vehicle supports 3A to 3C, the rising members 53 that reach the positions immediately below the entrance / exit level N are erected, and the mooring hooks 35a to 35c of the fall prevention means 24 in the operating state are provided. By being configured to be adjacent to the upper side of the rising member 53 of the lower ascending and descending vehicle support bases 3A to 3C at the lower support level D, the mooring hooks 35a to 35c of the fall prevention means 24 in the operating state are Through the rising member 53, it is possible to prevent the lower lift vehicle support bases 3A to 3C at the lower support level D from rising.
[0035]
FIG. 9 to FIG. 11 show a new specific structure relating to the individual ascent preventing means 22a to 22c in the above embodiment. That is, in the above-described embodiment, separate ascent-stopping means 22a to 22c are provided at three locations corresponding to the respective lower-elevating vehicle support bases 3A to 3C on the fixed frame side. In accordance with the lateral movement of the traversing vehicle supports 1A, 1B, only one of the ascending prevention means in which the traversing vehicle support is not located directly above is automatically switched to the non-operation state (non-operation state). In the embodiment shown in FIGS. 9 to 11, however, in the embodiment shown in FIGS. 9 to 11, the rising frames 54 provided on the lower elevating vehicle supports 3A to 3C and the traversing vehicle supports 1A and 1B are provided. The relay member 55 and the fixing frame 56 for ascending prevention constitute new individual ascent preventing means 57 in place of the individual ascent preventing means 22a to 22c.
[0036]
More specifically, a pair of left and right support members 54a and 54b and a horizontal member 54c provided between the upper ends of the support members 54a and 54b are provided at the rear ends of the lower ascending and lowering vehicle support bases 3A to 3C. A standing frame 54 having a gate shape is formed. The rear ends of the traversing vehicle supports 1A and 1B are located directly above the horizontal members 54c of the rising frame 54 when they are located directly above the lower ascending and descending vehicle supports 3A to 3C. A horizontal relay member 55 having a length protruding to the left and right sides from the horizontal member 54c is within a certain range via a pair of left and right brackets 55a and a pair of left and right spherical joints 55b protruding forward from positions near both the left and right ends. A guide rail that supports the pair of left and right wheels 5b (see FIG. 4) on the rear side of the traversing vehicle support bases 1A and 1B. 4b so as to be able to roll. When the traversing vehicle supports 1A and 1B are located directly above the lower ascending and descending vehicle supports 3A to 3C, the lower ascending and descending vehicle supports 3A to 3C are located above both ends of the relay member 55. An ascending-preventing fixed stopper 56 is provided at a position where it does not interfere with the portal-shaped rising frame 54 when the ascending level N rises. As shown in the imaginary line in FIG. 10 and in FIG. 11, each of the ascending prevention fixed stoppers 56 can be attached to the column 59 on the fixed frame side.
[0037]
Thus, with the above-described configuration, the relay member 55 is provided between the horizontal member 54c of the rising frame 54 of the lower ascending and descending vehicle support bases 3A to 3C, which is located directly below, and the fixed stopper 56 for preventing ascending. Are arranged with a small gap therebetween. In addition, rubber cushions 55d facing both upper surfaces of both ends of the horizontal member 54c of the rising frame 54 are attached to the lower sides of both ends of the relay member 55, and fixed stoppers for raising and lowering the upper ends of both ends of the relay member 55. A rubber cushion 55e facing the lower side surface of 56 is provided.
[0038]
In each of the above-mentioned separate ascending prevention means 57, each of the lower ascending and descending vehicle support bases 3A to 3C is supported at the lower limit position, that is, at the lower limit stopper surfaces 8a to 8c of the lower support level D shown in FIG. Since the rising frame 54 and the relay member 55 on the side of the traversing vehicle supports 1A and 1B are vertically separated from each other, the traversing vehicle supports 1A and 1B can be smoothly traversed without interference with the rising frame 54. Can be moved. When each of the lower ascending and lowering vehicle supports 3A to 3C is raised by hoisting the double suspension cable 11, the two lower ascending and descending vehicle supports where the traversing vehicle supports 1A and 1B are located directly above are integrated. The rising frame 54 that rises upward pushes up the relay member 55 on the side of the traversing vehicle support bases 1A and 1B via a rubber cushion 55d, and swings the relay member 55 upward with the spherical joint 55b as a fulcrum. The pair of right and left ascending stoppers 56 are pressed against each other via the rubber cushion 55e, so that the ascending is restrained through the rising frame 54, the relay member 55, and the ascending stopper 56, and is held at the lower support level D. Can be
[0039]
That is, according to the separate ascent preventing means 57 having the above-described structure, the ascent and descent of the lower ascending and descending vehicle support bases 3A to 3C is performed by the ascending prevention fixed stopper 56, and the upward thrust force is applied to the traversing vehicle support bases 1A and 1B. Does not act, the stability of the traversing vehicle supports 1A, 1B can be enhanced, and the generation of abnormal noise due to the vertical movement of the wheels 5b with respect to the guide rails 4b is eliminated. Moreover, the entire equipment can be constructed at a lower cost as compared with a case where separate ascending prevention means that can be switched by an actuator are provided on the fixed frame side corresponding to the respective lower ascending and descending vehicle support bases 3A to 3C. , Control becomes easy.
[0040]
In addition, the traversing vehicle supports 1A and 1B shown in FIGS. 9 and 11 have, at their rear ends, a gate-shaped upper ascending and descending vehicle support pedestal similar to the rising frame 54 of the lower ascending and descending vehicle supports 3A to 3C. Frame 58 is erected, and the upper frame of the two upper vehicles 2A to 2C, which are located just above the traversing vehicle supports 1A and 1B, out of the upper elevating vehicle supports 2A to 2C descending from the upper support level U. It is configured to receive the elevating vehicle support and keep it at the upper support level U. That is, the upper ascent / descent vehicle support stand receiving frame 58 constitutes each of the individual descent inhibiting means in place of the individual descent inhibiting means 20a to 20c in the above embodiment.
[0041]
In the above-described embodiment, in a three-layer structure parking device having support levels U and D of the elevator vehicle supports 2A to 3C above and below the entrance / exit level N, the upper elevator vehicle supports 2A to 2C and the lower side All of the lifting and lowering vehicle supports 3A to 3C are configured to be individually liftable and lowerable by one lifting and lowering driving means, that is, one system of a hanging cable 11 and its extension and retraction means 12. Elevating drive means for individually driving up and down the 2A to 2C and elevating drive means for individually driving the lower up and down vehicle support bases 3A to 3C may be separately provided. In this case, the collective lowering preventing means 21 and the collective rising preventing means 23 are unnecessary. Further, the present invention can also be implemented as a two-layered parking device provided with an ascending / descending vehicle support pedestal at either the upper or lower position relative to the entry / exit level N. In any case, the switching means for allowing only one elevating vehicle support corresponding to an empty position where the traversing vehicle support is not present among the elevating vehicle support to be able to move up and down to the entry / exit level is The present invention is not limited to the above-described embodiment, those described in Patent Documents 1 to 3 and Non-Patent Document 1. Of course, the traversing vehicle supports 1A, 1B disposed at the entrance / exit level N are not essential in the present invention, and are used as a parking device in which the traversing vehicle supports 1A, 1B are not provided at the entrance / exit level N. Can also be implemented. For example, it is a parking device provided with only the upper elevating vehicle support bases 2A to 2C, and the entrance / exit level N is the ground or an erecting slab instead of the ground, and the upper elevating vehicle support base is lowered in the entrance / exit level N. When lowering the upper elevating vehicle support base to the entry / exit level N by using an unoccupied place as a vehicle storage space as necessary, it may be implemented as a parking device that allows vehicles in that place to be ejected once. I can do it.
[0042]
The collective lowering preventing means 21, the collective raising preventing means 23 and the drop preventing means 24 illustrated in FIGS. 1, 7 and 8 or the separate raising preventing means 57 illustrated in FIGS. It can be used also for a parking device that employs other lifting drive means such as conventionally known various lifting drive means different from the lifting drive means of the lifting vehicle support base using the double hanging cable 11 according to the present invention. is there.
[0043]
Furthermore, the means for pulling out and pulling the hanging rope is not limited to the one using the hanging rope winding drum 14 shown in the embodiment. For example, the ends (both ends at the same position of one suspension cable) of the double suspension cable on the side opposite to the side that is hung around the rotary guide wheel provided on the fixed frame side are straightened by a cylinder device or the like. The pull-in / pull-out means may be a type of pull-in / pull-out type, or the ends of the double hanging rope (both ends of the single hanging rope at the same position) may be fixed to the fixed frame side. A payout of a type in which a rotary guide wheel (two guide wheels arranged concentrically) engaged at an arbitrary position in the middle of a double hanging cable is reciprocated in a hanging cable tension direction and a hanging cable relaxing direction by a cylinder device or the like. It may be a retracting means. In this case, both ends of one hanging cable are connected to each other to form a loop, and the two hanging guide wheels are provided on the fixed frame side, the loop-shaped hanging cable is hung on the two hanging guide wheels, and between the two rotating guide wheels. Each of the lifting and lowering vehicle supports is suspended by an intermediate double hanging cable, and a rotating guide wheel (two guide wheels arranged concentrically in parallel) engaged with an arbitrary position of the intermediate double hanging cable is a cylinder device. It is also possible to adopt a configuration in which the reciprocating movement is performed in the hanging cable tension direction and the hanging cable relaxing direction.
[0044]
【The invention's effect】
The present invention can be carried out and used as described above, and according to the parking device of the present invention, a plurality of elevating vehicles parallel to each other such that the elevating vehicle support pedestal moves up and down by extension and retraction. A suspension cable for continuously suspending the support base is wrapped around a rotating guide wheel provided on the fixed frame side to form a double suspension cable, and each lifting vehicle is supported by an intermediate double suspension cable. Since the platform is suspended, each elevating vehicle support platform is suspended by two suspension cables, and a thin and inexpensive suspension cable is used as compared with the configuration in which one suspension cable is suspended. Not only can the cost of the hanging cable be reduced, but also the allowable bending radius becomes smaller, so that a small number of rotating guide wheels can be used together to reduce the cost of the entire equipment. I can do it. In addition, since each suspension line portion of the double suspension line is one continuous suspension line via the rotating guide wheel, the load can be evenly distributed to each suspension line portion of the double suspension line, Since there is no problem that an excessive load acts on one side of the hanging cable portion to cause a breakage accident, it can be used safely.
[0045]
According to the second aspect of the present invention, each of the lifting and lowering vehicle supports is suspended by two suspension cables, but one suspension cable tension detector is used and two suspension cables are conventionally used. The lifting and lowering position of the lifting vehicle support base is detected by detecting the tension acting on the whole, and the pulling-out and pulling-in control of the hanging cable can be easily performed based on the detection.
[0046]
According to the third aspect of the present invention, each of the lifting and lowering vehicle support bases is hung by two hanging ropes, and the hanging rope guiding drum as a pulling-out and pulling-in means is fitted to the hanging rope guiding drum. The grooves can be formed easily and inexpensively as compared with the conventional case where two sets of hanging rope guide fitting grooves are formed in opposite spiral directions.
[Brief description of the drawings]
FIG. 1 is a schematic front view illustrating the configuration of the entire apparatus in a state where all elevator vehicle supports are at a home position.
FIG. 2 is a schematic front view illustrating the configuration of the entire apparatus in a state in which one lower elevating vehicle support stand is raised to a loading / unloading level.
FIG. 3 is a schematic front view illustrating a configuration of the entire apparatus in a state where one upper elevating vehicle support base is lowered to a loading / unloading level.
FIG. 4 is a schematic side view illustrating the configuration of the entire apparatus.
FIG. 5A is a partially cutaway side view showing details of a hanging rope pull-out / pull-in means, and FIG. 5B is a front view of the hanging rope winding drum.
FIG. 6A is a plan view showing details of a hanging rope tension detector, and FIG. 6B is a side view thereof.
FIG. 7 is a side view illustrating a collective lowering prevention unit, a collective upward prevention unit, and a fall prevention unit.
FIG. 8 is a side view illustrating another embodiment of the collective ascent prevention means and the fall prevention means.
FIG. 9 is a partially cutaway rear view of a traversing vehicle support for explaining a relay member in another embodiment of the collective ascent prevention means.
FIG. 10 is a partially cutaway rear view of a lower ascending and descending vehicle support for explaining a rising frame and an ascending prevention fixed frame in another embodiment.
FIG. 11 is a partial longitudinal side view of a main part for explaining the whole of another embodiment.
[Explanation of symbols]
1A, 1B Traversing vehicle support
2A ~ 2C Upper lifting vehicle support
3A ~ 3C Lower side elevating vehicle support base
4a, 4b Guide rails for traversing vehicle support
6a to 6c Upper limit stopper of upper lifting vehicle support base
7a-7c Lower limit stopper of upper elevating vehicle support base
N Entry / exit level
U Upper support level
D Lower support level
8a to 8c Lower limit stopper surface of lower lifting vehicle support base
9a-9c Lower limit stopper for lower-side lifting vehicle support
11 Double hanging cable
11a, 11b Both ends of double hanging cable
11c U-turn part of double hanging cable
12 Hanging cable pull-out means
14 Hanging rope winding drum
15 Drum drive motor
16 Hanging cable tension detector
17a-18c Suspended rotary guide wheels
19a-19h Rotating guide wheels for suspension
20a to 20c each separate descent prevention means
21 Collective descent prevention means
22a to 22c, 57 Ascent prevention means for each
23 Batch rise prevention means
24 Fall prevention means 24
25a to 25d, 29, 31a to 31d, 35a to 35d, 38 Mooring hooks 28, 34 Mooring hook driving means
40 Rotating guide wheels for U-turn guide
44a, 44b Two parallel hanging cable fitting grooves
47 Detectable movable body of hanging cable tension detector
48a-48c Sensor of the detector
54 Rising Frames (Each Rise Prevention Measure)
55 Intermediate members (separate ascent prevention means)
56 Fixed stopper for ascending prevention (each ascending prevention means)
