【０００１】
【発明の属する技術分野】
本発明は、入出庫レベルと上側支持レベルとの間で昇降する複数台の並列する上側昇降車両支持台と、入出庫レベルと下側支持レベルとの間で昇降する複数台の並列する下側昇降車両支持台とを備え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に於いて、入出庫レベルから上側支持レベルへ上昇する上側昇降車両支持台によって下側昇降車両支持台を吊り上げ、当該下側昇降車両支持台を下側支持レベルから入出庫レベルへ上昇させるようにした駐車装置が、特許文献１によって知られている。この特許文献１に記載された従来の駐車装置では、下側昇降車両支持台を吊り上げるための、互いに係脱自在な被係合部材とフックとから成る吊り上げ手段が、昇降車両支持台の左右巾方向の中央位置に設けられていた。この構成では、車両搭載時に左右巾方向の両側辺に車両重量がかかる下側昇降車両支持台の左右巾方向の中央位置を吊り上げることになるので、当該下側昇降車両支持台には、左右巾方向の中央位置を支点にして左右両側辺が下がる方向に大きな曲げ応力が作用することになり、下側昇降車両支持台を構成する左右巾方向の強度部材の曲げ強度を十分に高めなければならず、下側昇降車両支持台の重量アップや厚さの増大につながる結果となっていた。
【０００３】
【特許文献１】
特開２０００−２４８７６８号公報
【０００４】
【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、入出庫レベルＮとこれより上方の上側支持レベルＵとの間で昇降する複数台の並列する上側昇降車両支持台２Ａ〜２Ｃと、入出庫レベルＮとこれより下方の下側支持レベルＤとの間で昇降する複数台の並列する下側昇降車両支持台３Ａ〜３Ｃと、各上側昇降車両支持台２Ａ〜２Ｃと各下側昇降車両支持台３Ａ〜３Ｃとの内の一方に設けられた被係合部材２１と他方に設けられて前記被係合部材２１に係合可能なフック２２とから成る吊り上げ手段２０ａ〜２０ｃと、当該吊り上げ手段２０ａ〜２０ｃを作用状態と非作用状態とに切り換える切換手段３０とを備え、上側昇降車両支持台２Ａ〜２Ｃが入出庫レベルＮから上側支持レベルＵまで上昇するとき、作用状態にある前記吊り上げ手段２０ａ〜２０ｃを介して真下位置の下側昇降車両支持台３Ａ〜３Ｃを入出庫レベルＮまで吊り上げるように構成された駐車装置であって、前記吊り上げ手段２０ａ〜２０ｃが、各昇降車両支持台２Ａ〜３Ｃの左右巾方向の中央位置より一側方にずれた位置に設けられ、各下側昇降車両支持台３Ａ〜３Ｃには、その左右巾方向の水平姿勢を保持するための水平姿勢保持手段３７が併設された構成となっている。
【０００５】
上記構成の本発明を実施するについて、前記吊り上げ手段２０ａ〜２０ｃのフック２２は、入出庫レベルＮにある上側昇降車両支持台２Ａ〜２Ｃの被係合部材２１に対して係合し得る作用姿勢と当該被係合部材２１に対して係合しない非作用姿勢とに切り換え自在に下側昇降車両支持台３Ａ〜３Ｃに立設し、前記切換手段３０は、各下側昇降車両支持台３Ａ〜３Ｃが下側支持レベルＤにあるとき、全ての下側昇降車両支持台３Ａ〜３Ｃの前記フック２２を一斉に作用姿勢と非作用姿勢とに切り換えるように、固定フレーム側に設けることが出来る。
【０００６】
又、上側昇降車両支持台２Ａ〜２Ｃの昇降駆動手段が、各上側昇降車両支持台２Ａ〜２Ｃを吊り下げる引き込み繰り出し可能な吊り索１１を備えたものであるとき、当該吊り索１１による各上側昇降車両支持台２Ａ〜２Ｃの吊り下げ位置を、前記吊り上げ手段２０ａ〜２０ｃによる下側昇降車両支持台３Ａ〜３Ｃの吊り上げ位置と左右巾方向に関して略同一になるように、左右巾方向の中央位置より一側方にずらし、各上側昇降車両支持台２Ａ〜２Ｃにも、その左右巾方向の水平姿勢を保持するための水平姿勢保持手段３７を併設することが出来る。
【０００７】
下側昇降車両支持台３Ａ〜３Ｃや上側昇降車両支持台２Ａ〜２Ｃに併設される前記水平姿勢保持手段３７は、昇降車両支持台２Ａ〜３Ｃの左右巾方向一対の案内輪４２ａ，４２ｂと、この両案内輪４２ａ，４２ｂの内、前記吊り上げ手段２０ａ〜２０ｃのある側とは反対側の案内輪４２ａを吊り下げるように、前記両案内輪４２ａ，４２ｂに倒伏Ｚ字形に掛け渡されて上向き一端４３ａと下向き他端４３ｂとが固定フレーム側に係止された索状体４３とから構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と、図１〜図５に示すようにこの実施形態に示す駐車装置は、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６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、それぞれ後端左右両角部に、各昇降車両支持台の後端部を挟むように配置された固定フレーム側の昇降用ガイドレール兼用支柱（例えばＨ形鋼）７に係合する、左右横方向及び前後方向の位置決め（振れ止め）用ガイドローラー（例えばＨ形鋼のエッジ部が嵌合する溝付きのガイドローラー）８，９が軸支されたもので、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Ｓ１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Ｓ２（横行車両支持台１Ａ，１Ｂを案内する後側ガイドレール４ｂの上端面を利用）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Ｓ３（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の床面を利用）と入出庫レベルＮとの間で昇降可能である。
【００１１】
上側昇降車両支持台２Ａ〜２Ｃ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の他端部に取り付けられた吊り索張力検出器１６に係止され、両端間の中間部で全ての上側昇降車両支持台２Ａ〜２Ｃを吊り下げている。
【００１２】
即ち、各上側昇降車両支持台２Ａ〜２Ｃには、後端部の左右巾方向中央位置に被吊下用同軸２連回転案内輪１７ａ〜１７ｃが軸支され、上部固定フレーム１３には、各被吊下用同軸２連回転案内輪１７ａ〜１７ｃの真上位置で吊下用同軸３連回転案内輪１８ａ〜１８ｃが軸支されており、吊り索巻き取りドラム１４から繰り出された吊り索１１は、当該ドラム１４に対する巻回方向と同一方向に、各吊下用同軸３連回転案内輪１８ａ〜１８ｃとその真下位置の各被吊下用同軸２連回転案内輪１７ａ〜１７ｃとに、それぞれ順次２回巻きされた後、端末が吊り索張力検出器１６に係止されている。而して、ドラム１４から吊り索１１を繰り出すことにより、全ての上側昇降車両支持台２Ａ〜２Ｃの重力による下降を許し、ドラム１４で吊り索１１を巻き取ることにより、全ての上側昇降車両支持台２Ａ〜２Ｃが上昇限ストッパーＳ１に制止される上昇限位置まで吊り上げられることになるが、ここで重要なことは、吊り索１１による各上側昇降車両支持台２Ａ〜２Ｃの吊り下げ位置、即ち、被吊下用同軸２連回転案内輪１７ａ〜１７ｃ及び吊下用同軸３連回転案内輪１８ａ〜１８ｃの位置が、各上側昇降車両支持台２Ａ〜２Ｃの左右巾方向の中央位置ではなく、左右何れか片側（左右の端部位置を含む）にずらされている点にある。
【００１３】
尚、被吊下用２連回転案内輪１７ａ〜１７ｃと吊下用３連回転案内輪１８ａ〜１８ｃとを使用して、上下の被吊下用２連回転案内輪１７ａ〜１７ｃと吊下用３連回転案内輪１８ａ〜１８ｃとの間で吊り索１１を２回巻きにしているが、巻回数は１回でも良いし、３回以上であっても良い。又、被吊下用同軸２連回転案内輪１７ａ〜１７ｃ及び吊下用同軸３連回転案内輪１８ａ〜１８ｃに代えて、左右横方向に小間隔を隔てて軸支された各２つの回転案内輪（必要に応じて同軸２連又は同軸３連の回転案内輪）を使用し、図示例のような長円形ではなく、矩形状に吊り索１１を巻回しても良い。
【００１４】
前記上側昇降車両支持台２Ａ〜２Ｃの内、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台の上側昇降車両支持台のみを入出庫レベルＮへ下降可能にする手段が併設されている。当該手段として図示の実施形態では、各横行車両支持台１Ａ，１Ｂに、真上位置の上側昇降車両支持台２Ａ〜２Ｃを受け止める受け止め手段（例えば門形フレーム）１９ａ，１９ｂが設けられているが、当該手段は、この受け止め手段１９ａ，１９ｂを使用する構成に限定されない。例えば、各上側昇降車両支持台２Ａ〜２Ｃに対応させて固定フレーム側に、スプリングで非作用状態に付勢保持された受け止め具を配設し、この各受け止め具の内、横行車両支持台１Ａ，１Ｂが在席する位置に対応する２つの受け止め具を、例えば横行車両支持台１Ａ，１Ｂに設けた操作部で作用状態に切り換えるように構成したもの等、他の如何なる構成の手段であっても良い。
【００１５】
前記各上側昇降車両支持台２Ａ〜２Ｃと各下側昇降車両支持台３Ａ〜３Ｃとには、各上側昇降車両支持台２Ａ〜２Ｃでその真下位置の各下側昇降車両支持台３Ａ〜３Ｃを吊り上げる吊り上げ手段２０ａ〜２０ｃが設けられている。これら各吊り上げ手段２０ａ〜２０ｃは、各上側昇降車両支持台２Ａ〜２Ｃの後端部に設けられた被係合部材２１と各下側昇降車両支持台３Ａ〜３Ｃの後端部に立設されたフック２２とから構成されているが、ここで重要なことは、当該吊り上げ手段２０ａ〜２０ｃが、各上側昇降車両支持台２Ａ〜２Ｃの吊り索１１による吊り下げ位置と左右横方向に関して略同一位置となるように、各昇降車両支持台２Ａ〜３Ｃの後端部で左右巾方向の中央位置から一側方に離れた位置に配設されている点である。
【００１６】
各吊り上げ手段２０ａ〜２０ｃのフック２２は、図７に示すように、各下側昇降車両支持台３Ａ〜３Ｃの後端左右水平フレーム２３上に、下端が左右水平方向の支軸２４の周りに前後方向一定範囲内で揺動自在に支承され、スプリング２５によって垂直に起立する後方揺動限位置、即ち、作用姿勢に付勢保持されており、上端には、門形の係合部２６が設けられている。前記後端左右水平フレーム２３は、その左右両端が連結部材２７を介して下側昇降車両支持台３Ａ〜３Ｃの本体に結合されている。
【００１７】
各吊り上げ手段２０ａ〜２０ｃの被係合部材２１は、作用姿勢にある前記フック２２に対する相対下降運動により、当該フック２２を一旦スプリング２５に抗して前方へ揺動させてその門形係合部２６を下方に通過した後、スプリング２５で作用姿勢に復帰するフック２２の門形係合部２６内に嵌まり込むことが出来る鉤形のもので、各上側昇降車両支持台２Ａ〜２Ｃの後端左右水平フレーム２８に前方向きに突設されている。前記後端左右水平フレーム２８は、前記被吊下用２連回転案内輪１７ａ〜１７ｃをその上側で軸支するものであって、その左右両端が連結部材２９を介して上側昇降車両支持台２Ａ〜２Ｃの本体に結合されており、図７に示すように、各上側昇降車両支持台２Ａ〜２Ｃに対する下降限ストッパーＳ２（ガイドレール４ｂの上端面）は、前記連結部材２９に対して作用する。
【００１８】
尚、各吊り上げ手段２０ａ〜２０ｃのフック２２は、横行車両支持台１Ａ，１Ｂを案内する後側ガイドレール４ｂと各上側昇降車両支持台２Ａ〜２Ｃの後端左右水平フレーム２８の昇降経路との中間位置で起立しており、図６Ａ及び図７に仮想線で示すように前傾の非作用姿勢にあっても、横行車両支持台１Ａ，１Ｂの横動に対して干渉しないように構成されている。
【００１９】
下側支持レベルＤにある各下側昇降車両支持台３Ａ〜３Ｃのフック２２は、切換手段３０により一斉に非作用姿勢に切り換えることが出来る。この切換手段３０は、図７に示すように、下側支持レベルＤにある各下側昇降車両支持台３Ａ〜３Ｃのフック２２の中間高さ位置で当該フック２２の後側に位置するように、固定フレーム側の例えば昇降用ガイドレール兼用支柱７に支承された水平駆動軸３１と、当該水平駆動軸３１の各フック２２の後側位置に取り付けられたカム３２と、前記水平駆動軸３１の回転駆動用アクチェーター（図１参照）３３とから構成されている。各フック２２には、その後側の各カム３２に対応する位置にカム従動部材３４が取り付けられている。而して、図７に実線で示すようにカム３２がホームポジションにあるときは、各下側昇降車両支持台３Ａ〜３Ｃの昇降運動時に当該各下側昇降車両支持台３Ａ〜３Ｃとカム３２とが干渉することはなく、各フック２２はスプリング５によって付勢保持された作用姿勢を維持することが出来、水平駆動軸３１により各カム３２をホームポジションから所定角度だけ回転させることにより、下側支持レベルＤにある各下側昇降車両支持台３Ａ〜３Ｃのフック２２をスプリング２５の付勢力に抗して一斉に、図７に仮想線で示す非作用姿勢、即ち、各フック２２の上端門形係合部２６が上側昇降車両支持台２Ａ〜２Ｃの被係合部材２１に係合しない前傾姿勢に切り換えることが出来るように構成されている。
【００２０】
図９に示すように、全ての昇降車両支持台２Ａ〜３Ｃには水平姿勢保持手段３５が併設されている。この水平姿勢保持手段３５は、前後方向水平姿勢保持手段３６と左右方向水平姿勢保持手段３７とから構成され、前後方向水平姿勢保持手段３６は、各昇降車両支持台２Ａ〜３Ｃの前端近傍左右両側に同心状の左右水平軸で軸支された回転案内輪３８ａ，３８ｂと、各昇降車両支持台２Ａ〜３Ｃの後端近傍左右両側に同心状の左右水平軸で軸支された回転案内輪３９ａ，３９ｂと、前側の回転案内輪３８ａ，３８ｂを吊り下げる方向で前後一対の回転案内輪３８ａ，３９ａ及び３８ｂ，３９ｂに倒伏Ｚ字形に掛け渡されると共に上向き前端４０ａ，４１ａと下向き後端４０ｂ，４１ｂとを固定フレーム側に係止した左右一対の索状体（例えばワイヤーロープ）４０，４１とから構成されている。従って、各昇降車両支持台２Ａ〜３Ｃが、その後端部左右一対のガイドローラー８，９のみで昇降用ガイドレール兼用支柱７に案内されるものであっても、前端が重力で下るように傾くのを上記構成の前後方向水平姿勢保持手段３６によって確実に防止し、前後方向に関して水平姿勢を保持させながら昇降移動させることが出来る。
【００２１】
又、左右方向水平姿勢保持手段３７は、各昇降車両支持台２Ａ〜３Ｃの後端左右両側にそれぞれ前後方向水平軸で軸支された回転案内輪４２ａ，４２ｂと、各昇降車両支持台２Ａ〜３Ｃの吊り下げ位置（上側昇降車両支持台２Ａ〜２Ｃでは被吊下用同軸２連回転案内輪１７ａ〜１７ｃの位置、下側昇降車両支持台３Ａ〜３Ｃではフック２２の位置）とは反対側の回転案内輪４２ａを吊り下げる方向で左右一対の回転案内輪４２ａ，４２ｂに倒伏Ｚ字形に掛け渡されると共に上向き一端４３ａと下向き他端４３ｂとを固定フレーム側に係止した索状体（例えばワイヤーロープ）４３とから構成されている。従って、各昇降車両支持台２Ａ〜３Ｃが、その後端部左右一対のガイドローラー８，９のみで昇降用ガイドレール兼用支柱７に案内されるものであって且つ後端左右一側辺寄りの吊り下げ位置（被吊下用同軸２連回転案内輪１７ａ〜１７ｃの位置、及びフック２２の位置）で吊り下げられるものであっても、その吊り下げ位置とは反対側の後端左右他側辺が重力で下るように傾くのを上記構成の左右方向水平姿勢保持手段３７によって確実に防止し、左右方向に関して水平姿勢を保持させながら昇降移動させることが出来る。
【００２２】
尚、水平姿勢保持手段３５の構成は、この実施形態の構成に限定されない。例えば、各昇降車両支持台２Ａ〜３Ｃの後端部には、固定フレーム側の昇降用ガイドレール兼用支柱７に係合する昇降用ローラーユニットが設けられるが、この昇降用ローラーユニットで各昇降車両支持台２Ａ〜３Ｃの前後方向水平姿勢と左右方向の水平姿勢とを保持出来るように構成することが出来る。又、図９に示したような回転案内輪と索状体とを使用する水平姿勢保持手段３５を利用する場合でも、回転案内輪の配置や索状体の掛け回し形態は、上記実施形態のものに限定されない。更に、回転案内輪と索状体とを使用する水平姿勢保持手段３５を利用する場合、上記実施形態のように前後方向水平姿勢保持手段３６と左右方向水平姿勢保持手段３７とに分けるのではなく、例えば前後方向水平姿勢保持手段３６の回転案内輪の内、少なくとも後側左右一対の回転案内輪３９ａ，３９ｂとして歯輪を使用すると共に両回転案内輪３９ａ，３９ｂを伝動軸で連動連結して一体に回転するようにし、更に索状体４０，４１の少なくとも回転案内輪３９ａ，３９ｂと咬合する適当長さ部分はチエンを使用して構成することにより、前後方向水平姿勢保持手段３６で左右方向水平姿勢保持手段３７を兼用させ、別途設けた左右方向水平姿勢保持手段３７の回転案内輪４２ａ，４２ｂと索状体４３とを省くことも可能である。
【００２３】
以下、使用方法及び作用を説明すると、図１に示すように、上側昇降車両支持台２Ａ〜２Ｃの内、横行車両支持台１Ａ，１Ｂが在席しない入出庫レベルＮの空きスペースには、その真上位置の上側昇降車両支持台（図１では上側昇降車両支持台２Ｂ）が下ろされている。係る状態では、吊り索１１を上側昇降車両支持台２Ａ〜２Ｃ側の負荷が掛からない状態に弛めておくことにより、入出庫レベルＮに下ろされた上側昇降車両支持台２Ｂは下降限ストッパーＳ２で受け止められ、上側支持レベルＵにある他の上側昇降車両支持台２Ａ，２Ｃは、その真下に位置する横行車両支持台１Ａ，１Ｂ上の受け止め手段１９ａ，１９ｂで受け止められているので、吊り索１１の破断による上側昇降車両支持台２Ａ〜２Ｃの落下事故が防止出来るので、係る状態を本駐車装置の初期状態とするのが望ましい。又、この初期状態では、全ての下側昇降車両支持台３Ａ〜３Ｃが下側支持レベルＤに降下して下降限ストッパーＳ３で受け止められた状態であるが、係る状態では、吊り上げ手段２０ａ〜２０ｃの各フック２２を、図６Ａ及び図７に仮想線で示すように、切換手段３０のカム３２を駆動して非作用姿勢に切り換えておく。
【００２４】
而して、図１に示す初期状態では、入出庫レベルＮにある横行車両支持台１Ａ，１Ｂ及び上側昇降車両支持台２Ｂ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。この状態から、上側支持レベルＵにある上側昇降車両支持台２Ａ，２Ｃ又は下側支持レベル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位置又は真上位置の入出庫レベルＮに空きスペースを確保し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位置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。
【００２５】
例えば、図１に於いて、上側昇降車両支持台２Ｃを入出庫レベルＮに下降させるときは、当該上側昇降車両支持台２Ｃの真下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、これに先立って、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、吊り索１１を当該ドラム１４で巻き取らせて、入出庫レベルＮに下降していた上側昇降車両支持台２Ｂを含む全ての上側昇降車両支持台２Ａ〜２Ｃを上昇限ストッパーＳ１で制止されるまで上昇移動させる。このとき、先に説明したように、下側支持レベルＤにある全ての下側昇降車両支持台３Ａ〜３Ｃのフック２２は非作用姿勢に切り換えられているので、入出庫レベルＮに下降していた上側昇降車両支持台２Ｂが上昇するとき、その被係合部材２１が、これに対応する下側昇降車両支持台３Ｂのフック２２の上端門形係合部２６と係合することなく上昇通過する。
【００２６】
上記のように全ての上側昇降車両支持台２Ａ〜２Ｃを上昇限位置まで上昇させることにより、横行車両支持台１Ａ，１Ｂの受け止め手段１９ａ，１９ｂとその真上の上側昇降車両支持台２Ａ，２Ｃとの間に隙間が確保され、横行車両支持台１Ａ，１Ｂが横動可能な状態となるので、係る状態で横行車両支持台１Ｂを、入出庫レベルＮから上側支持レベルＵまで上昇した上側昇降車両支持台２Ｂの真下位置まで横動させ、図２に示すように、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する。
【００２７】
次に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、吊り索１１を当該ドラム１４から繰り出して、全ての上側昇降車両支持台２Ａ〜２Ｃが吊り索１１の繰り出しに伴って重力で下降出来る状態にすると、真下に横行車両支持台１Ａ，１Ｂが在席する上側昇降車両支持台２Ａ，２Ｂは、少し降下して横行車両支持台１Ａ，１Ｂ上の受け止め手段１９ａ，１９ｂに受け止められ、上側支持レベルＵに保持されたままになるが、作業対象の上側昇降車両支持台２Ｃは、図３、図６Ａ、及び図７に示すように、入出庫レベルＮまで降下し、下降限ストッパーＳ２により受け止められるので、当該作業対象の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が行える。このとき、図７に示すように、上側昇降車両支持台２Ｃの被係合部材２１は、その真下位置の下側昇降車両支持台３Ｃの非作用姿勢に切り換えられているフック２２（仮想線で示す）の上端門形係合部２６より下方位置に達している。勿論、入出庫レベルＮと上側支持レベルＵとの間で昇降移動せしめられる上側昇降車両支持台２Ｂ，２Ｃは、吊り索１１による吊り下げ位置が後端左右一側辺寄りに偏っているにもかかわらず、前後方向及び左右方向の各水平姿勢保持手段３６，３７によって水平姿勢を保って昇降することは、先に説明した通りである。
【００２８】
図１に示す状態で、次の作業対象が下側昇降車両支持台３Ｃであるときは、当該作業対象の下側昇降車両支持台３Ｃの真上位置の上側昇降車両支持台２Ｃを以上の手順で入出庫レベルＮまで降下させた後、各吊り上げ手段２０ａ〜２０ｃの切換手段３０のカム３２を回転駆動し、下側支持レベルＤにある全ての下側昇降車両支持台３Ａ〜３Ｃのフック２２をスプリング２５の付勢力で図６Ａ及び図７に実線で示す作用姿勢に切り換える。この後、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、吊り索１１を当該ドラム１４で巻き取らせて、入出庫レベルＮに下降していた上側昇降車両支持台２Ｃを含む全ての上側昇降車両支持台２Ａ〜２Ｃを上昇限ストッパーＳ１で制止されるまで上昇移動させる。
【００２９】
而して、入出庫レベルＮから上側支持レベルＵまで吊り上げられる上側昇降車両支持台２Ｃは、その被係合部材２１が真下に位置する下側昇降車両支持台３Ｃの作用姿勢に切り換えられているフック２２の上端門形係合部２６に係合することにより、吊り上げ手段２０ｃを介して下側昇降車両支持台３Ｃを一体に吊り上げながら上昇することになる。従って、上側昇降車両支持台２Ｃが上昇限ストッパーＳ１で制止される上昇限に達したとき、吊り上げ手段２０ｃを介して吊り上げられる下側昇降車両支持台３Ｃが入出庫レベルＮに達しているようにフック２２の長さを設定しておけば、入出庫レベルＮまで一旦降下させた上側昇降車両支持台２Ｃを上昇限位置まで上昇させたとき、作業対象の下側昇降車両支持台３Ｃが、図４、図６Ｂ、及び図８に示すように入出庫レベルＮに到達することになり、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が行える。
【００３０】
入出庫レベルＮまで吊り上げた下側昇降車両支持台３Ｃに対する車両の積み下ろし作業が終了したときは、吊り索１１を繰り出し駆動して、当該下側昇降車両支持台３Ｃを吊り上げ手段２０ｃで吊り下げている上側昇降車両支持台２Ｃを入出庫レベルＮまで降下させることにより、当該下側昇降車両支持台３Ｃを下側支持レベルＤに下ろすと共に、切換手段３０により下側支持レベルＤにある全ての下側昇降車両支持台３Ａ〜３Ｃのフック２２を非作用姿勢に復帰させて、元の初期状態に戻しておくのが望ましい。勿論、入出庫レベルＮと下側支持レベルＤとの間で吊り上げ手段２０ｃを介して昇降移動せしめられる下側昇降車両支持台３Ｃは、そのフック２２のある吊り下げ位置が後端左右一側辺寄りに偏っているにもかかわらず、前後方向及び左右方向の各水平姿勢保持手段３６，３７によって水平姿勢を保って昇降することは、先に説明した通りである。
【００３１】
以上の要領で吊り索１１の引き込み繰り出し手段１２の駆動、横行車両支持台１Ａ，１Ｂの横動、及び切換手段３０による吊り上げ手段２０ａ〜２０ｃの作用姿勢又は非作用姿勢への切り換え操作を行うことにより、上側昇降車両支持台２Ａ〜２Ｃの内の任意の１台を入出庫レベルＮに呼び出し、又は下側昇降車両支持台３Ａ〜３Ｃの内の任意の１台を入出庫レベルＮに呼び出して、車両の積み下ろし作業が行えるのである。
【００３２】
尚、図８では、入出庫レベルＮまで吊り上げられた下側昇降車両支持台３Ｃの連結部材２７が横行車両支持台１Ａ，１Ｂを案内する後側ガイドレール４ｂの下端面に当接しているように示しているが、吊り上げ手段２０ａ〜２０ｃを介して上側昇降車両支持台２Ａ〜２Ｃにより吊り上げられる下側昇降車両支持台３Ａ〜３Ｃの上昇限位置は、上側昇降車両支持台２Ａ〜２Ｃの上昇限ストッパーＳ１の位置とフック２２の長さとで決まるので、前記ガイドレール４ｂ等、下側昇降車両支持台３Ａ〜３Ｃに対する上昇限ストッパーとして働くものはない方が望ましい。又、吊り上げ手段２０ａ〜２０ｃを介して上側昇降車両支持台２Ａ〜２Ｃにより下側昇降車両支持台３Ａ〜３Ｃを入出庫レベルＮまで吊り上げた状態（図４、図６Ｂ、及び図８に示す状態）では、吊り索１１が破断すると、上側昇降車両支持台２Ａ〜２Ｃが吊り上げている下側昇降車両支持台３Ａ〜３Ｃと共に落下事故を起こすことになるので、上側支持レベルＵにある全ての上側昇降車両支持台２Ａ〜２Ｃに対して一斉に働く、作用状態と非作用状態とに切り換え自在な落下防止用の一括受け止め手段を併設することが出来る。更に、入出庫レベルＮに吊り上げられた下側昇降車両支持台３Ａ〜３Ｃの、吊り上げ手段２０ａ〜２０ｃの破断による落下事故がおきる可能性が考えられるときは、入出庫レベルＮに吊り上げられた下側昇降車両支持台３Ａ〜３Ｃに対して一斉に働く、作用状態と非作用状態とに切り換え自在な落下防止用の一括受け止め手段を併設することも出来る。
【００３３】
尚、吊り上げ手段２０ａ〜２０ｃの構成は、上記実施形態のものに限定されない。例えば、被係合部材２１を下側昇降車両支持台３Ａ〜３Ｃに設け、上側昇降車両支持台２Ａ〜２Ｃからフック２２を垂下させるように設けることも出来る。又、フック２２ではなく、被係合部材２１をフック２２に対する作用姿勢と非作用姿勢とに切り換えるように構成したり、各吊り上げ手段２０ａ〜２０ｃごとに切換手段を併設することも出来る。
【００３４】
又、上側昇降車両支持台２Ａ〜２Ｃの昇降駆動手段は、基本的には、吊り索１１を使用しないもの等、どのような構成のものであっても良い。又、吊り索１１を利用するものであっても、その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るものではなく、例えば、吊り索を直接又は動滑車を介して引き込んだり繰り出したりするシリンダー装置を利用した繰り出し引き込み手段であっても良い。
【００３５】
【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、下側昇降車両支持台を吊り上げるための、互いに係脱自在な被係合部材とフックとから成る吊り上げ手段が、車両搭載時に左右巾方向の両側辺寄りに車両重量がかかる昇降車両支持台の左右巾方向の中央位置より一側方にずれた位置に設けられているので、下側昇降車両支持台の左右巾方向の中央位置に前記吊り上げ手段が設けられている場合と比較して、当該下側昇降車両支持台を構成する左右巾方向の強度部材に作用する曲げ応力が小さくなり、従って、当該左右巾方向の強度部材に要求される曲げ強度が小さくなり、下側昇降車両支持台の重量軽減や厚さの縮小を図ることが出来る。又、下側昇降車両支持台の左右巾方向の一側辺寄り位置を吊り下げるので、当該下側昇降車両支持台は、吊り下げ側とは反対側が下がるように傾動しようとするが、下側昇降車両支持台には、その左右巾方向の水平姿勢を保持するための水平姿勢保持手段が併設されているので、車両を安全に支持し、昇降させることが出来る。
【００３６】
又、吊り上げ手段の位置を、下側昇降車両支持台上で支持される車両を前後方向に延長させた領域から外側に外れるように、例えば下側昇降車両支持台の後端の左右何れかの角部付近までずらして配設すれば、この下側昇降車両支持台が入出庫レベルにあるときの車両の出入りを前記吊り上げ手段のある後端部側に於いても可能にすることが出来る。換言すれば、入出庫レベルに上げられた下側昇降車両支持台に対する車両の自走による積み下ろしを通過型とすることも可能である。
【００３７】
尚、請求項２に記載の構成によれば、各下側昇降車両支持台ごとに併設される吊り上げ手段を各別に作用状態と非作用状態とに切り換える場合と比較して、切換手段を含む全体の構成及び制御が簡単になり、安価に実施出来る。
【００３８】
又、請求項３に記載の構成によれば、上側昇降車両支持台に対しても、下側昇降車両支持台と同様に、その左右巾方向の強度部材に要求される曲げ強度を小さくして、その重量軽減や厚さの縮小を図ることが出来る。
【００３９】
更に、請求項４に記載の構成によれば、下側昇降車両支持台や、請求項３に記載の構成を採用する場合の上側昇降車両支持台に併設しなければならない水平姿勢保持手段の構成がシンプルになり、安価に実施することが出来る。
【図面の簡単な説明】
【図１】装置全体の構成を、初期状態で示す概略背面図である。
【図２】図１の初期状態から横行車両支持台を移動させた状態を示す概略背面図である。
【図３】図２の状態から１台の上側昇降車両支持台を入出庫レベルに下ろした状態を示す概略背面図である。
【図４】図３の状態から１台の下側昇降車両支持台を入出庫レベルまで吊り上げた状態を示す概略背面図である。
【図５】装置全体の構成を示す概略側面図である。
【図６】Ａ図は図３の状態の要部を示す概略側面図であり、Ｂ図は図４の状態の要部を示す概略側面図である。
【図７】図６Ａの要部の詳細を示す縦断側面図である。
【図８】図６Ｂの要部の詳細を示す縦断側面図である。
【図９】昇降車両支持台の水平姿勢保持手段を説明する概略斜視図である。
【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
７ 昇降用ガイドレール兼用支柱
８，９ 左右横方向及び前後方向の位置決め（振れ止め）用ガイドローラー
１１ 吊り索
１２ 吊り索の繰り出し引き込み手段
１６ 吊り索張力検出器
１７ａ〜１７ｃ 被吊下用同軸２連回転案内輪
１８ａ〜１８ｃ 吊下用同軸３連回転案内輪
１９ａ，１９ｂ 上側昇降車両支持台受け止め手段
２０ａ〜２０ｃ 吊り上げ手段
２１ 被係合部材（吊り上げ手段）
２２ フック（吊り上げ手段）
２５ スプリング（フック）
２６ 上端門形係合部（フック）
３０ 切換手段
３１ 水平駆動軸（切換手段）
３２ カム（切換手段）
３３ 駆動用アクチェーター（切換手段）
３４ カム従動部材（フック）
３５ 水平姿勢保持手段
３６ 前後方向水平姿勢保持手段
３７ 左右方向水平姿勢保持手段
３８ａ〜３９ｂ，４２ａ，４２ｂ 回転案内輪
４０ａ，４０ｂ，４３ 索状体
Ｓ１ 上側昇降車両支持台の上昇限ストッパー
Ｓ２ 上側昇降車両支持台の下降限ストッパー
Ｓ３ 下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[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a plurality of parallel upper and lower vehicle support bases that move up and down between an entrance / exit level and an upper support level, and a plurality of parallel lower elevations that move up and down between an entrance / exit level and a lower support level. The present invention relates to a parking device provided with a lifting vehicle support base.
[0002]
[Prior art]
In the above-described parking device, the lower lift vehicle support is lifted by the upper lift vehicle support rising from the entrance / exit level to the upper support level, and the lower lift vehicle support is moved in and out of the lower support level. A parking device adapted to be raised to a level is known from US Pat. In the conventional parking device described in Patent Document 1, lifting means, which includes an engaging member and a hook which can be detachably engaged with each other, for lifting the lower elevating vehicle support, is provided with a left and right width of the elevating vehicle support. It was provided at the center position in the direction. In this configuration, when the vehicle is mounted, the center position in the left-right width direction of the lower elevating vehicle support that weighs the vehicle on both sides in the left-right width direction is lifted. A large bending stress acts in the direction in which the left and right sides are lowered with the center position in the direction as the fulcrum, and the bending strength of the left and right width direction strength members constituting the lower elevating vehicle support base must be sufficiently increased. Instead, the weight and thickness of the lower lifting vehicle support were increased.
[0003]
[Patent Document 1]
JP 2000-248768 A
[0004]
[Means for Solving the Problems]
An object of the present invention is to provide a parking apparatus that can solve the above-described conventional problems. N and a plurality of parallel upper and lower vehicle support bases 2A to 2C that move up and down between the upper support level U and the upper and lower support levels U, and between the entrance / exit level N and the lower support level D below this. To be engaged provided on one of the plurality of parallel lower elevating vehicle supports 3A to 3C, each of the upper elevating vehicle supports 2A to 2C, and each of the lower elevating vehicle supports 3A to 3C A lifting means 20a-20c comprising a hook 21 provided on the other side and engageable with the engaged member 21; and a switching means 30 for switching the lifting means 20a-20c between an active state and a non-active state. With upper side lifting vehicle support When 2A to 2C rises from the loading / unloading level N to the upper support level U, the lower lifting vehicle support bases 3A to 3C located immediately below are lifted to the loading / unloading level N via the lifting means 20a to 20c in the operating state. In the parking device configured as described above, the lifting means 20a to 20c are provided at positions deviated to one side from the center position in the left-right width direction of each of the ascending and descending vehicle support bases 2A to 3C. The vehicle support bases 3A to 3C are provided with horizontal posture holding means 37 for holding the horizontal posture in the left-right width direction.
[0005]
In the embodiment of the present invention having the above structure, the hook 22 of the lifting means 20a to 20c can be engaged with the engaged member 21 of the upper ascending and descending vehicle support bases 2A to 2C at the loading / unloading level N. The lower elevating vehicle support bases 3A to 3C are erected on the lower elevating vehicle support bases 3A to 3C so as to be freely switchable between the lower elevating vehicle support bases 3A to 3C. When 3C is at the lower support level D, the hooks 22 of all the lower elevating and lowering vehicle supports 3A to 3C can be provided on the fixed frame side such that the hooks 22 are simultaneously switched between the working posture and the non-working posture.
[0006]
Further, when the lifting drive means of the upper lifting vehicle support bases 2A to 2C is provided with a pull-in / extendable hanging cable 11 for hanging the upper lifting vehicle support bases 2A to 2C, The center position in the left and right width direction such that the suspension position of the lifting vehicle support bases 2A to 2C is substantially the same as the suspension position of the lower lifting vehicle support bases 3A to 3C by the lifting means 20a to 20c in the left and right width direction. The horizontal posture holding means 37 for maintaining the horizontal posture in the left-right width direction can be provided on each of the upper and lower vehicle support bases 2A to 2C further shifted to one side.
[0007]
The horizontal attitude holding means 37 provided alongside the lower elevating vehicle supports 3A to 3C and the upper elevating vehicle supports 2A to 2C includes a pair of guide wheels 42a and 42b in the left and right width directions of the elevating vehicle supports 2A to 3C. Of the two guide wheels 42a, 42b, the two guide wheels 42a, 42b are suspended in a Z-shape so as to hang the guide wheel 42a on the side opposite to the side on which the lifting means 20a to 20c are provided. One end 43a and the other end 43b facing downward can be composed of a cord-like body 43 locked on the fixed frame side.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIGS. 1 to 5, a parking apparatus according to this embodiment includes a parking level N that is substantially the same as a ground level, This is a three-layered parking device having two floors above ground and one below ground, which is composed of an upper support level U above the exit level N and a lower support level D below the entrance / exit level N. Is provided with two traversing vehicle supports 1A and 1B, and three ascending and descending vehicle supports 2A to 2C and 3A to 3C are juxtaposed at an upper support level U and a lower support level D, respectively. I have.
[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 means 6 for driving to rotate in the reverse direction is mounted, and is configured to be capable of self-propelling independently in left and right arbitrary directions.
[0010]
The upper ascending and lowering vehicle supports 2A to 2C and the lower ascending and descending vehicle supporting stands 3A to 3C are provided at the right and left corners of the rear end, respectively, on the fixed frame side arranged so as to sandwich the rear end of each ascending and descending vehicle support. A guide roller (for example, a grooved guide roller into which an edge portion of an H-shaped steel fits) for positioning (sway rest) in the left-right lateral direction and in the front-rear direction, which engages with a guide rail / post (e.g., an H-shaped steel) 7 for lifting and lowering. 8) and 9 are pivotally supported, and the upper ascending and descending vehicle support bases 2A to 2C are provided with a stationary limiter S1 on the fixed frame side attached to the upper support level U and a fixed frame attached to the loading / unloading level N. Can be moved up and down between the lower descent stopper S2 (using the upper end surface of the rear guide rail 4b for guiding the traversing vehicle supports 1A and 1B), and the lower ascending and descending vehicle supports 3A to 3C are lower. To side support level D Is vertically movable between the lowermost stopper S3 and (utilizing floor of the underground pit 10 to form a vehicle storage space in the lower support level D) and goods movements level N kicking.
[0011]
The lifting drive means of the upper lifting vehicle support bases 2 </ b> A to 2 </ b> C includes a hanging cable 11 and a pulling-in / drawing unit 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 the other end of the upper fixed frame 13. All upper lifting vehicle support bases 2A to 2C are suspended at an intermediate portion therebetween.
[0012]
That is, the coaxial double rotation guide wheels 17 a to 17 c for suspension are supported at the center of the rear end of the upper ascending and descending vehicle support bases 2 </ b> A to 2 </ b> C in the left-right width direction. The suspension coaxial triple rotation guide wheels 18a to 18c are supported at the positions directly above the suspended coaxial dual rotation guide wheels 17a to 17c, and the suspension cable 11 extended from the suspension cable winding drum 14 is provided. Are respectively provided in the same direction as the winding direction with respect to the drum 14 on each of the suspension coaxial triple rotation guide wheels 18a to 18c and the suspended coaxial dual rotation guide wheels 17a to 17c located immediately below the suspension coaxial triple rotation guide wheels 18a to 18c, respectively. After being sequentially wound twice, the terminal is locked to the hanging cable tension detector 16. By pulling out the suspension cable 11 from the drum 14, all the upper lifting vehicle support bases 2 </ b> A to 2 </ b> C are allowed to descend by gravity, and by winding the suspension cable 11 on the drum 14, all the upper lifting vehicle support is supported. The tables 2A to 2C are lifted up to the ascending limit position where they are stopped by the ascending limit stopper S1, but what is important here is the hanging position of each upper ascending and descending vehicle support base 2A to 2C by the hanging cable 11, that is, The position of the suspended coaxial dual rotary guide wheels 17a to 17c and the suspended coaxial triple rotary guide wheels 18a to 18c is not at the center of the upper lifting vehicle support bases 2A to 2C in the left-right width direction. The point is that it is shifted to one of the left and right sides (including the left and right end positions).
[0013]
In addition, using the suspended double rotation guide wheels 17a to 17c and the suspension triple rotation guide wheels 18a to 18c, the upper and lower suspended double rotation guide wheels 17a to 17c and the suspension Although the suspension cable 11 is wound twice between the triple rotation guide wheels 18a to 18c, the number of turns may be one or three or more. In addition, instead of the suspended coaxial double rotation guide wheels 17a to 17c and the suspension coaxial triple rotation guide wheels 18a to 18c, two rotation guides each supported by a small horizontal space in the left and right direction. A loop (two coaxial or three coaxial rotary guide wheels as necessary) may be used, and the hanging cable 11 may be wound in a rectangular shape instead of an elliptical shape as in the illustrated example.
[0014]
A means is provided for enabling only one of the upper lifting vehicle supports 2A to 2C to be lowered to the entry / exit level N, only one upper lifting vehicle support corresponding to an empty position where the traversing vehicle supports 1A and 1B are not present. Have been. In the illustrated embodiment, receiving means (for example, a gate-shaped frame) 19a, 19b for receiving the upper ascending and descending vehicle supports 2A to 2C located directly above are provided in the illustrated embodiment as the means. The means is not limited to the configuration using the receiving means 19a, 19b. For example, a receiving device biased and held in a non-operating state by a spring is disposed on the fixed frame side corresponding to each of the upper ascending and descending vehicle supporting tables 2A to 2C. , 1B is a means having any other configuration, such as a configuration in which the two receiving members corresponding to the positions where the seats are located are switched to the operating state by operating portions provided on the traversing vehicle supports 1A, 1B. Is also good.
[0015]
The upper lifting vehicle supports 2A to 2C and the lower lifting vehicle supports 3A to 3C are respectively provided with the lower lifting vehicle supports 3A to 3C immediately below the upper lifting vehicle supports 2A to 2C. Lifting means 20a to 20c for lifting are provided. These lifting means 20a to 20c are erected on the engaged member 21 provided at the rear end of each upper lifting vehicle support 2A to 2C and at the rear end of each lower lifting vehicle support 3A to 3C. What is important here is that the lifting means 20a to 20c are substantially the same in the left and right and lateral directions as the hanging positions of the upper lifting vehicle support bases 2A to 2C by the hanging cables 11. This is a point that is located at a rear end of each of the ascending and descending vehicle support bases 2A to 3C so as to be one side away from the center position in the lateral width direction.
[0016]
As shown in FIG. 7, the hooks 22 of the lifting means 20a to 20c are mounted on the rear end left and right horizontal frames 23 of the lower ascending and descending vehicle supports 3A to 3C. It is supported swingably within a certain range in the front-rear direction, and is biased and held at a rear swing limit position vertically standing by a spring 25, that is, in a working posture. A gate-shaped engaging portion 26 is provided at the upper end. Is provided. The rear end left and right horizontal frame 23 has its left and right ends connected to the main bodies of the lower ascending and descending vehicle support bases 3A to 3C via connecting members 27.
[0017]
The engaged member 21 of each of the lifting means 20a to 20c causes the hook 22 to temporarily swing forward against the spring 25 by a relative descending movement with respect to the hook 22 in the operating posture, and the gate-shaped engaging portion thereof 26, which are hook-shaped and can be fitted into the gate-shaped engaging portions 26 of the hooks 22, which return to the operating position by the springs 25, after the upper ascending and descending vehicle supports 2A to 2C. The left and right horizontal frames 28 are provided to protrude forward. The rear end left and right horizontal frame 28 pivotally supports the suspended double rotation guide wheels 17a to 17c on its upper side, and the left and right ends thereof are connected to the upper elevating vehicle support base 2A via a connecting member 29. As shown in FIG. 7, the lower limit stopper S2 (the upper end surface of the guide rail 4b) for each of the upper ascending and descending vehicle support bases 2A to 2C acts on the connecting member 29 as shown in FIG. .
[0018]
The hooks 22 of the lifting means 20a to 20c are connected to the rear guide rails 4b for guiding the traversing vehicle supports 1A and 1B and the vertical path of the rear end left and right horizontal frames 28 of the upper lifting vehicle supports 2A to 2C. It is configured to stand up at the intermediate position so as not to interfere with the lateral movement of the traversing vehicle supports 1A and 1B even when it is in the forward non-acting posture as shown by phantom lines in FIGS. 6A and 7. ing.
[0019]
The hooks 22 of the lower lifting vehicle supports 3A to 3C at the lower support level D can be simultaneously switched to the non-operating posture by the switching means 30. As shown in FIG. 7, the switching means 30 is located at the intermediate height position of the hooks 22 of the lower ascending and descending vehicle support bases 3A to 3C at the lower support level D and behind the hooks 22. A horizontal drive shaft 31 supported on, for example, a lifting guide rail / support post 7 on the fixed frame side; a cam 32 attached to a position behind each hook 22 of the horizontal drive shaft 31; And a rotary drive actuator (see FIG. 1) 33. A cam driven member 34 is attached to each hook 22 at a position corresponding to each cam 32 on the rear side. When the cam 32 is at the home position as shown by the solid line in FIG. 7, the lower lift vehicle support bases 3A to 3C and the cam 32 move during the vertical movement of each lower lift vehicle support base 3A to 3C. Does not interfere with each other, each hook 22 can maintain the working posture biased and held by the spring 5, and by rotating each cam 32 from the home position by a predetermined angle by the horizontal drive shaft 31, The hooks 22 of the lower ascending and descending vehicle supports 3A to 3C at the side support level D are simultaneously acted against the urging force of the spring 25, and the non-operating posture indicated by a virtual line in FIG. The gate-shaped engaging portion 26 is configured to be able to switch to the forwardly inclined posture in which the gate-shaped engaging portion 26 does not engage with the engaged member 21 of the upper ascending and descending vehicle support bases 2A to 2C.
[0020]
As shown in FIG. 9, a horizontal attitude holding means 35 is provided on all of the lift vehicle supports 2A to 3C. The horizontal posture holding means 35 is composed of a front / rear horizontal posture holding means 36 and a left / right horizontal posture holding means 37. Rotating guide wheels 38a and 38b supported by concentric left and right horizontal shafts, and rotating guide wheels 39a supported by concentric left and right horizontal shafts on the left and right sides near the rear end of each of the lifting vehicle supports 2A to 3C. , 39b and a pair of front and rear rotary guide wheels 38a, 39a and 38b, 39b in a direction of hanging the front rotary guide wheels 38a, 38b in a falling Z-shape, and upward front ends 40a, 41a and downward rear end 40b, 41b and a pair of left and right cords (for example, wire ropes) 40 and 41 which are locked to the fixed frame side. Therefore, even if each of the ascending and descending vehicle support bases 2A to 3C is guided by the ascending and descending guide rail / post 7 only by the pair of left and right guide rollers 8, 9, the front end is inclined so as to descend by gravity. This can be reliably prevented by the front-rear direction horizontal posture holding means 36 having the above configuration, and can be moved up and down while maintaining the horizontal posture in the front-rear direction.
[0021]
The left and right horizontal posture holding means 37 includes rotating guide wheels 42a and 42b supported on the left and right sides of the rear end of each of the ascending and descending vehicle supports 2A to 3C by horizontal axes in the longitudinal direction, respectively, and the ascending and descending vehicle supports 2A to 2C. The position opposite to the 3C hanging position (the position of the suspended coaxial dual rotation guide wheels 17a to 17c in the upper lifting vehicle support bases 2A to 2C, and the position of the hook 22 in the lower lifting vehicle support bases 3A to 3C). A rope-shaped body (e.g., a rope-shaped body (e.g., a hook-and-loop body) that is hung over a pair of left and right rotation guide wheels 42a and 42b in a direction in which the rotation guide wheels 42a (Wire rope) 43. Therefore, each of the lifting vehicle support bases 2A to 3C is guided by the lifting guide rail / supporting column 7 by only a pair of left and right guide rollers 8 and 9, and is suspended near one rear left and right side. Even if it is hung at the lowering position (the position of the suspended coaxial dual rotation guide wheels 17a to 17c and the position of the hook 22), the rear end left and right other side opposite to the hanging position The horizontal posture holding means 37 having the above-mentioned configuration surely prevents the tilting of the robot from lowering due to the gravity, and can be moved up and down while maintaining the horizontal posture in the left and right directions.
[0022]
Note that the configuration of the horizontal attitude holding unit 35 is not limited to the configuration of this embodiment. For example, at the rear end of each of the lifting vehicle supports 2A to 3C, a lifting roller unit that engages with the lifting guide rail / post 7 on the fixed frame side is provided. The support bases 2A to 3C can be configured to be able to hold the horizontal posture in the front-rear direction and the horizontal posture in the left-right direction. Further, even when the horizontal attitude holding means 35 using the rotating guide wheels and the cords as shown in FIG. 9 is used, the arrangement of the rotating guide wheels and the manner of winding the cords are the same as those of the above embodiment. It is not limited to one. Further, when using the horizontal posture holding means 35 using the rotating guide wheels and the cord-like body, instead of being divided into the front and rear horizontal posture holding means 36 and the left and right horizontal posture holding means 37 as in the above embodiment, For example, among the rotation guide wheels of the front-rear direction horizontal attitude holding means 36, at least a pair of rotation guide wheels 39a and 39b on the rear side are used with tooth wheels, and the two rotation guide wheels 39a and 39b are interlocked and connected by a transmission shaft. By using a chain, at least an appropriate length portion of the cord-like bodies 40 and 41 that engages with the rotation guide wheels 39a and 39b is formed by using a chain. The horizontal attitude holding means 37 can also be used, and the separately provided rotating guide wheels 42a and 42b and the cord-like body 43 of the horizontal horizontal attitude holding means 37 can be omitted.
[0023]
In the following, the method of use and the operation will be described. As shown in FIG. The upper elevating vehicle support (the upper elevating vehicle support 2B in FIG. 1) at the position directly above is lowered. In such a state, the suspension cable 11 is loosened so that the load on the upper lifting / lowering vehicle support bases 2A to 2C is not applied, so that the upper lifting / lowering vehicle support base 2B lowered to the loading / unloading level N lowers the lower limit stopper S2. The other upper ascending and descending vehicle supports 2A, 2C at the upper support level U are received by the receiving means 19a, 19b on the traversing vehicle supports 1A, 1B located directly thereunder. Since it is possible to prevent a fall accident of the upper ascending and descending vehicle support bases 2A to 2C due to the breakage of 11, it is desirable to set such a state as the initial state of the present parking device. Further, in this initial state, all the lower lifting vehicle supports 3A to 3C are lowered to the lower support level D and received by the lower limit stopper S3, but in such a state, the lifting means 20a to 20c are provided. 6A and FIG. 7, the cam 32 of the switching means 30 is driven to switch to the non-operating position, as indicated by phantom lines.
[0024]
Thus, in the initial state shown in FIG. 1, the loading / unloading work by the self-propelled movement of the vehicle can be freely performed on the traversing vehicle supports 1A, 1B and the upper lifting / lowering vehicle support 2B at the entry / exit level N. From this state, when carrying out the unloading work by the self-propelled movement of the vehicle to the upper lifting vehicle support bases 2A and 2C at the upper support level U or the lower lifting vehicle support bases 3A to 3C at the lower support level D, An empty space must be secured at the entry / exit level N directly below or directly above the lifting / lowering vehicle support of the work object. When the vehicle 1A or 1B is present, the traversing vehicle supports 1A and 1B are first moved sideways to secure the empty space.
[0025]
For example, in FIG. 1, when lowering the upper ascending and lowering vehicle support 2C to the loading / unloading level N, the traversing vehicle support 1B, which is seated directly below the upper ascending and descending vehicle support 2C, is moved to the right in FIG. Prior to this, the hanging rope winding drum 14 is driven to rotate by the motor 15 in the hanging rope winding direction, and the hanging rope 11 is wound by the drum 14 and lowered to the entry / exit level N. All the upper ascending and descending vehicle supports 2A to 2C including the upper ascending and descending vehicle supporting stand 2B are moved upward until they are stopped by the ascending limit stopper S1. At this time, as described above, since the hooks 22 of all the lower elevating vehicle supports 3A to 3C at the lower support level D have been switched to the non-operating posture, they have been lowered to the entrance / exit level N. When the upper lifting vehicle support 2B rises, the engaged member 21 rises and passes without engaging with the corresponding upper end gate-shaped engaging portion 26 of the hook 22 of the lower lifting vehicle support 3B. I do.
[0026]
By raising all of the upper lifting vehicle supports 2A to 2C to the ascending position as described above, the receiving means 19a, 19b of the traversing vehicle supports 1A, 1B and the upper lifting vehicle supports 2A, 2C directly above them. And the horizontal vehicle support 1A, 1B is in a state in which it can move laterally, so that the horizontal vehicle support 1B is raised and lowered from the loading / unloading level N to the upper support level U in this state. It is traversed to a position directly below the vehicle support 2B, and as shown in FIG. 2, an empty space is secured at the entry / exit level N just below the upper target vehicle support 2C to be worked.
[0027]
Next, the hanging rope winding drum 14 is rotationally driven by the motor 15 in the hanging rope payout direction, and the hanging cable 11 is paid out from the drum 14, and all the upper ascending and descending vehicle support bases 2 </ b> A to 2 </ b> C are driven by the lifting of the hanging cable 11. When the vehicle can be lowered by gravity, the upper ascending and descending vehicle supports 2A and 2B, in which the transverse vehicle supports 1A and 1B are seated directly below, slightly descend and receive means 19a and 19b on the transverse vehicle supports 1A and 1B. , And remains at the upper support level U, but the upper lift vehicle support 2C to be worked descends to the entry / exit level N as shown in FIGS. 3, 6A, and 7, Since it is received by the lower limit stopper S2, the unloading work by the self-propelled movement of the vehicle can be performed on the upper elevating vehicle support 2C of the work object. At this time, as shown in FIG. 7, the engaged member 21 of the upper ascending and descending vehicle support 2C is connected to the hook 22 (in phantom line) which has been switched to the non-operating position of the lower ascending and descending vehicle support 3C immediately below. (Shown) below the upper end gate-shaped engaging portion 26. Of course, the upper lift vehicle support bases 2B and 2C which are moved up and down between the entrance / exit level N and the upper support level U may have a position where the suspension by the suspension cable 11 is biased to the rear left and right one side. Regardless, the horizontal posture holding means 36 and 37 in the front-rear direction and the left-right direction keep the horizontal posture and move up and down as described above.
[0028]
In the state shown in FIG. 1, when the next work object is the lower elevating vehicle support 3C, the upper elevating vehicle support 2C just above the lower elevating vehicle support 3C of the work object is subjected to the above procedure. , The cam 32 of the switching means 30 of each of the lifting means 20a to 20c is rotationally driven, and the hooks 22 of all the lower ascending and descending vehicle supports 3A to 3C at the lower supporting level D are driven. Is switched to the action posture indicated by the solid line in FIGS. 6A and 7 by the urging force of the spring 25. Thereafter, the hanging rope winding drum 14 is rotationally driven by the motor 15 in the hanging rope winding direction, and the hanging rope 11 is wound by the drum 14. All the upper ascending and descending vehicle supports 2A to 2C including 2C are moved up until stopped by the ascending limit stopper S1.
[0029]
Thus, the upper lifting vehicle support 2C suspended from the loading / unloading level N to the upper support level U is switched to the operating posture of the lower lifting vehicle support 3C whose engaged member 21 is located immediately below. By engaging with the upper gate-shaped engaging portion 26 of the hook 22, the lower ascending and descending vehicle support 3C is lifted up as one unit via the lifting means 20c. Therefore, when the upper ascending and descending vehicle support 2C reaches the ascending limit that is stopped by the ascending limit stopper S1, the lower ascending and descending vehicle support 3C suspended via the suspending means 20c reaches the entry / exit level N. If the length of the hook 22 is set, when the upper ascending and descending vehicle support 2C once lowered to the loading / unloading level N is raised to the ascending limit position, the lower ascending and descending vehicle support 3C to be worked is moved as shown in FIG. As shown in FIG. 4, FIG. 6B, and FIG. 8, the loading / unloading level N is reached, and the vehicle can be unloaded and loaded on the lower ascending / descending vehicle support 3C by self-propelled operation.
[0030]
When the loading / unloading operation of the vehicle with respect to the lower elevating / lowering vehicle support 3C lifted to the loading / unloading level N is completed, the lifting cable 11 is extended and driven, and the lower elevating / lowering vehicle support 3C is hung by the lifting means 20c. The lower elevating vehicle support 2C is lowered to the loading / unloading level N, thereby lowering the lower elevating vehicle support 3C to the lower support level D, and the switching means 30 is used to lower all lower elevating vehicles D at the lower support level D. It is desirable to return the hooks 22 of the side elevating and lowering vehicle support bases 3A to 3C to the non-operating position to return to the initial state. Of course, the lower lifting vehicle support 3C which is moved up and down between the entrance / exit level N and the lower support level D via the lifting means 20c has a hanging position where the hook 22 is located at one of the rear left and right sides. As described above, it is possible to move up and down while maintaining the horizontal posture by the horizontal posture holding means 36 and 37 in the front-rear direction and the left-right direction despite being biased to the side.
[0031]
In the manner described above, the driving of the pull-in / pull-out means 12 of the hanging cable 11, the lateral movement of the traversing vehicle supports 1 A, 1 B, and the switching operation of the lifting means 20 a to 20 c by the switching means 30 to the working position or the non-working position are performed. Thus, any one of the upper ascending and descending vehicle supports 2A to 2C is called to the entrance / exit level N, or any of the lower ascending / descending vehicle supports 3A to 3C is called to the entrance / exit level N. Thus, the vehicle can be loaded and unloaded.
[0032]
In FIG. 8, the connecting member 27 of the lower elevating and lowering vehicle support 3C suspended to the entry / exit level N is in contact with the lower end surface of the rear guide rail 4b for guiding the traversing vehicle support 1A, 1B. As shown in FIG. 5, the ascending limit positions of the lower lifting vehicle supports 3A to 3C that are lifted by the upper lifting vehicle supports 2A to 2C via the lifting means 20a to 20c correspond to the rising of the upper lifting vehicle supports 2A to 2C. Since it is determined by the position of the limit stopper S1 and the length of the hook 22, it is desirable that no guide rail 4b or the like behave as a lift limit stopper for the lower lifting vehicle support bases 3A to 3C. Also, a state in which the lower lifting vehicle supports 3A to 3C are lifted to the loading / unloading level N by the upper lifting vehicle supports 2A to 2C via the lifting means 20a to 20c (the state shown in FIGS. 4, 6B, and 8). In (2), when the suspension cable 11 is broken, a falling accident occurs together with the lower lifting vehicle supports 3A to 3C which are lifted by the upper lifting vehicle supports 2A to 2C. A collective catching means for drop prevention, which can be switched between an active state and a non-active state, acting on the ascending and descending vehicle support bases 2A to 2C at the same time can be provided. Further, when there is a possibility that the lower lifting vehicle supports 3A to 3C suspended at the entry / exit level N may fall due to the breakage of the lifting means 20a to 20c, the lower part lifted at the entry / exit level N is considered. It is also possible to provide a collective catching means for drop prevention which works on the side lifting vehicle supports 3A to 3C at the same time and is switchable between an active state and a non-active state.
[0033]
In addition, the structure of the lifting means 20a to 20c is not limited to the above-described embodiment. For example, the engaged member 21 may be provided on the lower elevating vehicle support bases 3A to 3C, and the hook 22 may be provided so as to hang down from the upper elevating vehicle support bases 2A to 2C. Further, instead of the hook 22, the engaged member 21 may be configured to switch between the operating position and the non-operating position with respect to the hook 22, or a switching unit may be provided for each of the lifting units 20a to 20c.
[0034]
Further, the lifting drive means of the upper lifting vehicle support bases 2A to 2C may basically have any configuration, such as one not using the hanging cable 11. Further, even if the hanging rope 11 is used, 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. May be a draw-out draw-in means using a cylinder device that draws in or draws out the work directly or via a moving pulley.
[0035]
【The invention's effect】
The present invention can be implemented and used as described above. According to the parking device of the present invention, the engaged members detachable from each other for lifting the lower elevating vehicle support base. Since the lifting means consisting of a hook and a hook is provided at a position deviated to one side from the center position in the left-right width direction of the lifting / lowering vehicle support base that weighs the vehicle near both sides in the left-right width direction when mounted on the vehicle, Compared to the case where the lifting means is provided at the center position in the left-right width direction of the lower lifting vehicle support, the bending stress acting on the left-right width direction strength member constituting the lower lifting vehicle support is reduced. Therefore, the bending strength required for the strength member in the left-right width direction is reduced, and it is possible to reduce the weight and thickness of the lower elevating vehicle support base. In addition, since the position of the lower elevating vehicle support base near one side in the left-right width direction is hung, the lower elevating vehicle support base tends to tilt so that the side opposite to the hung side is lowered. Since the vertical vehicle support base is provided with horizontal posture holding means for maintaining the horizontal posture in the left-right width direction, the vehicle can be safely supported and raised and lowered.
[0036]
Further, the position of the lifting means may be deviated outward from a region in which the vehicle supported on the lower elevating vehicle support is extended in the front-rear direction. By displacing it near the corner, it is possible to allow the vehicle to enter and exit when the lower lifting vehicle support base is at the entry / exit level even at the rear end side where the lifting means is provided. In other words, it is also possible to use a passing type for the unloading of the vehicle on the lower elevating vehicle support table raised to the entrance / exit level by self-propelled.
[0037]
According to the second aspect of the present invention, as compared with the case where the lifting means provided for each of the lower elevating vehicle supports are separately switched between the active state and the non-active state, the entirety including the switching means is included. Is simple and can be implemented at low cost.
[0038]
In addition, according to the configuration of the third aspect, the bending strength required for the strength member in the left-right width direction is reduced for the upper elevating vehicle support similarly to the lower elevating vehicle support. Therefore, the weight can be reduced and the thickness can be reduced.
[0039]
Furthermore, according to the configuration of the fourth aspect, the configuration of the horizontal posture holding means that must be provided along with the lower elevating vehicle support or the upper elevating vehicle support when the configuration of the third aspect is adopted. Is simple and can be implemented at low cost.
[Brief description of the drawings]
FIG. 1 is a schematic rear view showing the configuration of the entire apparatus in an initial state.
FIG. 2 is a schematic rear view showing a state in which a traversing vehicle support is moved from an initial state in FIG. 1;
FIG. 3 is a schematic rear view showing a state in which one upper elevating vehicle support base is lowered to a loading / unloading level from the state of FIG. 2;
FIG. 4 is a schematic rear view showing a state in which one lower elevating vehicle support base is lifted to a loading / unloading level from the state of FIG. 3;
FIG. 5 is a schematic side view showing the configuration of the entire apparatus.
FIG. 6A is a schematic side view showing a main part in the state of FIG. 3, and FIG. B is a schematic side view showing a main part in the state of FIG.
FIG. 7 is a longitudinal sectional side view showing details of a main part of FIG. 6A.
FIG. 8 is a longitudinal sectional side view showing details of a main part of FIG. 6B.
FIG. 9 is a schematic perspective view illustrating a horizontal attitude holding unit of the lifting vehicle support base.
[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
7 Elevating guide rail combined support
8, 9 Guide rollers for positioning (sway stabilization) in the horizontal direction
11 Hanging rope
12 Means for pulling out and pulling up the hanging cable
16 Hanging cable tension detector
17a-17c Coaxial twin rotary guide wheels for suspension
18a to 18c Suspended coaxial triple rotary guide wheels
19a, 19b Upper and lower elevating vehicle support stand receiving means
20a to 20c lifting means
21 Engaged member (lifting means)
22 hooks (lifting means)
25 Spring (Hook)
26 Top Gate Engagement (Hook)
30 Switching means
31 Horizontal drive shaft (switching means)
32 cam (switching means)
33 Actuator for driving (switching means)
34 Cam follower (hook)
35 Horizontal attitude holding means
36 Front / rear horizontal attitude holding means
37 Horizontal orientation horizontal holding means
38a-39b, 42a, 42b Rotary guide wheels
40a, 40b, 43 cords
S1 Upper-end ascent / descent stopper
S2 Lowering stopper for upper support
S3 Lowering limit stopper for lower lifting vehicle support base
N Entry / exit level
U Upper support level
D Lower support level
