JP3690561B2 - Transport vehicle - Google Patents

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JP3690561B2
JP3690561B2 JP4716198A JP4716198A JP3690561B2 JP 3690561 B2 JP3690561 B2 JP 3690561B2 JP 4716198 A JP4716198 A JP 4716198A JP 4716198 A JP4716198 A JP 4716198A JP 3690561 B2 JP3690561 B2 JP 3690561B2
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traveling rail
wheel
vehicle
traveling
vehicle body
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JPH11246007A (en
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渉 清川
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Daifuku Co Ltd
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Daifuku Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、走行レール上を走行自在な複数の車輪と、前記走行レールに対する車体横幅方向での位置を規制するように前記走行レールに係合する規制部材とを備えると共に、前記複数の車輪のうちの少なくとも一部が、駆動装置にて駆動される推進用の駆動輪に構成されて、前記走行レールに沿って自走自在に構成された搬送車に関する。
【0002】
【従来の技術】
上記搬送車は、規制部材によって走行レールに対する車体横幅方向での位置が規制されながら、駆動装置にて駆動される推進用の駆動輪で走行レールに沿って自走するものであり、その駆動装置になんらかのトラブル、例えば、駆動装置が電動式の駆動モータを備えたものであって、その駆動モータに必要な電力を供給できない停電時や、駆動装置の故障等のトラブルが発生すると自走させることができなくなり、この場合は、手押し式形態等の手動力にて搬送車を走行レールに沿って走行させる必要がある。
そして、上記のようなトラブル発生時に手動力にて搬送車を走行させるにあたり、従来、駆動輪を走行レールに接当させた状態で手動力にて走行させている。
【0003】
【発明が解決しようとする課題】
この為、搬送車を走行させるに必要な手動力が大きなものとなり、搬送車を小さな手動力にて簡便に走行させることができない欠点がある。
つまり、駆動装置と駆動輪は減速ギア等を介して連動されており、駆動輪を手動力で強制的に回転させて搬送車を走行レールに沿って走行させるには、駆動輪の回転に伴ってその駆動装置を強制的に動かす必要があり、駆動装置が搬送車の走行の抵抗になるからである。
この欠点を解決するために、例えば、駆動装置と駆動輪との間に電動断続用のクラッチを設けておいて、トラブル発生時には駆動装置と駆動輪との連動を断つことで、搬送車を小さな手動力にて走行させることができるように構成することが考えられるが、この場合は、必要な推進力を駆動装置から駆動輪に伝達できるように、伝動トルクが大きな大型で高価なクラッチを設けなければならない欠点が新たに生じる。
本発明は上記実情に鑑みてなされたものであって、トラブル発生時に手動力にて搬送車を走行レールに沿って走行させるにあたり、その搬送車を小さな手動力にて簡便に走行させることができ、しかも、構成の簡素化を図ることができるようにすることを目的とする。
【0004】
【課題を解決するための手段】
請求項1記載の搬送車は、遊転式の補助輪を手動操作にて昇降調節して、トラブル発生時には、補助輪が走行レールに接当する支持作用状態に切り換えると、規制部材の走行レールに対する係合を維持する範囲、つまり、規制部材によって走行レールに対する車体横幅方向での位置が規制されている状態で、推進用の駆動輪が走行レールから浮上し、トラブルが発生していない通常の走行時には、補助輪が走行レールから浮上する非支持作用状態に切り換えると、駆動輪が走行レールに接当して、駆動装置による駆動で自走させることができる。
従って、トラブル発生時に手動力にて搬送車を走行レールに沿って走行させるにあたり、駆動輪に代えて補助輪にて走行レール上を走行させることができるので、駆動輪を手動力で強制的に回転させる必要がなく、駆動装置が手動力による搬送車の走行の抵抗にならないので、搬送車を従来に比べて小さな手動力にて簡便に走行させることができる。
しかも、規制部材の規制機能を利用しながら、トラブル発生時に駆動輪に代えて走行レールに接当させる補助輪を単に設けるものであるから、構成の簡素化を図り易いものとなる。
また、請求項1記載の搬送車は、上下揺動操作される操作ハンドルにて、屈伸リンクを屈折状態と伸展状態とに屈伸操作して、補助輪を支持作用状態と非支持作用状態とに切り換えることができる。
従って、操作ハンドルの梃作用により操作力の軽減を図りながらも、螺進機構等を用いる場合に比べて、支持作用状態と非支持作用状態との切換を迅速に行い易い。
請求項2記載の搬送車は、補助輪を支持作用状態に切り換えるに伴って、車体前後方向の他端側の従動輪を支点として車体が揺動し、車体前後方向の一端側の駆動輪が浮上する。
従って、駆動輪が車体前後方向の両端側夫々に設けられていて、トラブル発生時に車体を補助輪だけで支持するような場合に比べて、車体を従動輪と補助輪とで安定に支持して確実に走行させ易い
求項記載の搬送車は、収納棚の長手方向に沿って設置された走行レールに沿っての走行と、荷移載用の昇降台の駆動昇降操作とによって、収納棚に対して物品を入出庫することができる。
【0005】
【発明の実施の形態】
図1は自動倉庫等の物品保管設備を示し、この物品保管設備には、物品出し入れ方向が互いに対向するように間隔を隔てて設置した二基の収納棚Aと、それらの収納棚Aどうしの間に形成した作業通路Bを自動走行する本発明による搬送車の一例としてのスタッカークレーンCとが設けられ、各収納棚Aには多数の物品収納部Dが上下多段かつ左右に並設されている。
【0006】
前記作業通路Bには、収納棚Aの長手方向に沿って単一の走行レール1が設置され、作業通路Bの一端側に設置した物品搬出入部Eには、入出庫指令をスタッカークレーンCに入力するコントローラE1と、走行レール1を挟んで一対の荷載置台E2とが設けられ、スタッカークレーンCは、入出庫指令に基づいて走行レール1に沿って走行して、荷載置台E2と物品収納部Dとの間でのパレットPに載せた物品Fの出し入れを行う入出庫用の搬送車として構成されている。
【0007】
前記スタッカークレーンCは、図2に示すように、走行レール1に沿って走行する走行車体2に、荷移載用の昇降台としての昇降キャレッジ3と、その昇降キャレッジ3を昇降操作自在に案内支持する前後一対の支柱4とを設けて構成され、昇降キャレッジ3には物品移載用のフォーク装置5が設けられている。
【0008】
前記各支柱4の下端部は、走行車体2に固定した支柱固定用ブラケット4aにボルト固定され、各支柱4の上端部どうしは、作業通路上方に設置したガイドレール6に沿って案内支持される上部フレーム7にて連結されている。
【0009】
前記昇降キャレッジ3は、その左右両側に連結した昇降用チェーン8にて吊下げ支持され、この昇降用チェーン8は、上部フレーム7に設けた案内スプロケット9と一方の支柱4に設けた案内スプロケット10とに巻き掛けられて、走行車体2の一端に装備した巻き取りドラム11に連結されている。
そして、巻き取りドラム11を昇降用電動モータM1にて正逆に駆動回転させて、昇降用チェーン8の繰り出しや巻き取り操作で昇降キャレッジ3を駆動昇降させるように構成されている。
【0010】
前記走行車体2には、図3,図4に示すように、走行レール1上を走行自在な前後二つの車輪12と、走行レール1に対する車体横幅方向での位置を規制するように走行レール1に係合する前後二箇所に設けた規制部材13と、走行用電動モータM2を備えた走行用駆動装置14と、走行車体2に対する昇降によって、走行レール1に接当される支持作用状態と走行レール1から浮上される非支持作用状態とに切換えられる遊転式の補助輪15を備えた補助輪昇降ユニット16とが設けられ、更に、床面側に設置した給電装置から集電する図外の集電装置やスタッカークレーンCの作動を制御する図外の制御装置が設けられている。
【0011】
前記規制部材13の各々は、車輪12近くの左右横側方において、走行レール1を左右から挟み込んで、スタッカークレーンCの走行に伴って、その側面に沿って上下軸周りで転動する左右一対の下部遊転ローラ13aを設けて構成されている。
また、上部フレーム7には、ガイドレール6を左右から挟み込んで、スタッカークレーンCの走行に伴って、その側面に沿って上下軸周りで転動する左右一対の上部遊転ローラ17が走行方向の前後端部に設けられている。
【0012】
そして、二つの車輪12のうちの車体前後方向の一端側の車輪が、走行用駆動装置14にて駆動される推進用の駆動輪12aに構成され、車体前後方向の他端側の車輪が、遊転自在な従動輪12bとして構成され、スタッカークレーンCは、上部フレーム7に設けた上部遊転ローラ17にて倒れ止めされながら、走行用駆動装置14による駆動で走行レール1に沿って自走自在に構成されている。
【0013】
前記補助輪昇降ユニット16は、図5,図6に示すように、走行車体2の駆動輪12a側前面に設けた固定部18に固定され、補助輪15を走行方向に直交する横軸芯X1周りで回転自在に支持する車輪支持枠20と、その車輪支持枠20を手動操作にて昇降させて補助輪15を昇降調節する昇降操作具21とをベースフレーム22に組付けて構成され、ベースフレーム22には、固定部18に対する固定用のベース板23が設けられている。
【0014】
前記固定部18には、ベース板23が車体横方向から挿脱自在に嵌め込まれる蟻溝状のガイド溝19が形成され、このガイド溝19に嵌め込んだベース板23をボルト等で固定部18に固定して、補助輪昇降ユニット16が走行車体2に対して着脱自在に固定されている。
従って、通常の走行時には補助輪昇降ユニット16を走行車体2から外しておき、走行用電動モータM2に電力を供給出来ない停電等のトラブル発生時には、補助輪昇降ユニット16を走行車体2に装着することができる。
【0015】
前記昇降操作具21は、図7にも示すように、上下揺動操作される手動式の操作ハンドル24と、その操作ハンドル24の上下揺動操作で屈折状態と伸展状態とに屈伸操作される屈伸リンク25と、車輪支持枠20の上面に固定したスライド軸部材26とを備え、屈伸リンク25は上下一対のリンク部材25a,25bを連結ピン29にて横軸芯X2周りで揺動自在に連結して構成され、スライド軸部材26の上下スライド移動を案内するガイド部材27がベースフレーム22に設けられている。
【0016】
前記ベースフレーム22には左右一対のブラケット28が固定され、操作ハンドル24は、ブラケット28に横軸芯X3周りで上下揺動自在に支持され、上下一対のリンク部材のうちの上部リンク部材25aの上端部がブラケット28に横軸芯X4周りで上下揺動自在に連結され、下部リンク部材25bの下端部がスライド軸部材26の上端部に横軸芯X4周りで上下揺動自在に連結されている。
【0017】
前記操作ハンドル24には、屈伸リンク25の連結ピン29が挿通され、かつ、その連結ピン29の外径よりも大径のピン挿通孔30が、操作ハンドル24の上下揺動操作に伴って一体に揺動するように設けられている。
そして、操作ハンドル24によるピン挿通孔30の揺動に伴う連結ピン29の押し引きで、屈伸リンク25を屈折状態と伸展状態とに屈伸操作するとともに、スライド軸部材26を車輪支持枠20と共に上下にスライド移動させて、補助輪15が屈伸リンク25に屈伸により昇降調節されるように連係されている。
【0018】
そして、補助輪15は、屈伸リンク25の伸展状態では支持作用状態に切り換えられて、規制部材13の走行レール1に対する係合を維持する範囲で駆動輪12aが走行レール1から浮上し、屈伸リンク25の屈折状態では非支持作用状態に切り換えられて、駆動輪12aが走行レール1に接当する。
尚、操作ハンドル24には、その揺動範囲の端部位置において、操作ハンドル24の操作位置を固定する図外の固定具が、固定状態と固定解除状態とに切換自在に設けられている。
【0019】
次に、昇降操作具21による補助輪15の走行車体2に対する昇降操作について説明する。
図7(イ)は、操作ハンドル24を押し下げて補助輪15が非支持作用状態に切り換えられている状態を示し、連結ピン29が車体前方側に引き出されて屈伸リンク25が屈折状態に操作され、これによってスライド軸部材26が車輪支持枠20と共に上方にスライド移動されて、補助輪15が走行レール1から浮上している。
【0020】
上記の補助輪15が走行レール1から浮上している支持作用状態から、操作ハンドル24を押し上げるに伴って、連結ピン29が支柱4側に向けて押し込まれ、スライド軸部材26が下方にスライド移動して、補助輪15が走行レール1に接当する。
【0021】
そして、補助輪15が走行レール1に接当している状態で、操作ハンドル24を更に押し上げて、屈伸リンク25が伸展状態になるように操作すると、図5に示すように、補助輪15が、従動輪12bを支点にして走行車体2を上下に揺動させ、図7(ロ)に示すように、補助輪15が支持作用状態に切り換えられて、駆動輪12aが走行レール1から僅かな浮上量H(本実施形態では約1mm)で浮上し、スタッカークレーンCは従動輪12bと補助輪15とで走行レール1に支持される。
【0022】
前記補助輪15を支持作用状態に切り換えるに伴って、走行車体2が従動輪12bを支点にして上揺動されるので、規制部材13の各々に設けた下部遊転ローラ13aは走行レール1の側面に沿って上方向に摺動するが、駆動輪12aの浮上量Hは、下部遊転ローラ13aによる走行レール1に対する上下方向での係合量に比べて小さく、駆動輪12aは、規制部材13の走行レール1に対する係合を維持する範囲で走行レール1から浮上している。
【0023】
また、補助輪15を支持作用状態に切り換えるに伴って、ガイドレール6を挟み込んでいる上部遊転ローラ17もガイドレール6の側面に沿って上方向に摺動するが、駆動輪12aの浮上量Hは、上部遊転ローラ17のガイドレール6に対する上下方向での挟み込み量に比べて小さく、上部遊転ローラ17はガイドレール6の側面に沿って転動できる状態に維持されている。
【0024】
従って、走行用電動モータM2に電力を供給できない停電等のトラブル発生時には、上部遊転ローラ17にて倒れ止めされているスタッカークレーンCを、小さな手動力で走行レール1に沿って走行させることができる。
【0025】
〔その他の実施形態〕
1.上記実施形態では、走行方向の前後に設けた2個の車輪で単一の走行レールに沿って走行する搬送車を示したが、走行方向の前後に左右対称に設けた3個以上の車輪で複数の走行レールに沿って走行する搬送車であっても良い。
2.上記実施形態では、走行レール上を走行自在な二個の車輪のうちの一個を駆動装置にて駆動される推進用の駆動輪に構成したが、複数の車輪の全部が推進用の駆動輪に構成されていても良い。
3.上記実施形態では、床面等の地上側から供給される電力で駆動される駆動装置を設けた搬送車を示したが、バッテリーを搭載していて、そのバッテリーから供給される電力で駆動される駆動装置を設けた搬送車であっても良い。
この場合、バッテリーが消耗して駆動装置を駆動できなくなるトラブルが発生すると、補助輪にて走行させることができる。
4.搬送車の走行レールに対する車体横幅方向での位置を規制するように走行レールに係合する規制部材は、車輪の外周部に一体形成した脱輪防止用の鍔であっても良い
【図面の簡単な説明】
【図1】物品保管設備の斜視図
【図2】搬送車(スタッカークレーン)の一部省略側面図
【図3】搬送車(スタッカークレーン)の要部側面図
【図4】搬送車(スタッカークレーン)の要部平面図
【図5】要部の側面図
【図6】要部の正面図
【図7】要部の拡大側面図
【符号の説明】
1 走行レール
2 車体
3 昇降台
12 車輪
12a 駆動輪
12b 従動輪
13 規制部材
14 駆動装置
15 補助輪
24 操作ハンドル
25 屈伸リンク
A 収納棚
F 物品
[0001]
BACKGROUND OF THE INVENTION
The present invention includes a plurality of wheels that can travel on a traveling rail, and a regulating member that engages with the traveling rail so as to regulate a position of the traveling rail in a lateral width direction of the vehicle body. The present invention relates to a transport vehicle in which at least a part thereof is configured as propulsion driving wheels driven by a driving device and is configured to be capable of traveling along the traveling rail.
[0002]
[Prior art]
The transport vehicle is a propulsion driving wheel driven by a driving device and is self-propelled along the traveling rail while the position in the vehicle body width direction with respect to the traveling rail is regulated by the regulating member. If the drive device is equipped with an electric drive motor and the drive motor cannot supply the necessary power, or if a failure such as a drive device failure occurs, the vehicle will run on its own. In this case, it is necessary to cause the transport vehicle to travel along the travel rail with a manual force such as a hand-held type.
And when making a conveyance vehicle drive | work with manual force at the time of the above trouble occurrence, it is made to drive | work with manual force in the state which contacted the driving wheel with the traveling rail conventionally.
[0003]
[Problems to be solved by the invention]
For this reason, the manual force required to run the transport vehicle becomes large, and there is a drawback that the transport vehicle cannot be easily traveled with a small manual force.
In other words, the drive device and the drive wheel are linked via a reduction gear or the like, and in order to force the drive wheel to rotate manually with a manual force and travel the carriage along the traveling rail, the drive wheel rotates. This is because it is necessary to forcibly move the drive device, and the drive device serves as resistance for traveling of the transport vehicle.
In order to solve this drawback, for example, an electric intermittent clutch is provided between the drive device and the drive wheel, and when the trouble occurs, the drive device and the drive wheel are disconnected, thereby reducing the size of the transport vehicle. It can be considered that the vehicle can be driven by manual force. In this case, a large and expensive clutch with a large transmission torque is provided so that the necessary propulsive force can be transmitted from the drive unit to the drive wheels. There are new disadvantages that must be made.
The present invention has been made in view of the above circumstances, and when a transport vehicle travels along a travel rail with a manual force when a trouble occurs, the transport vehicle can be easily traveled with a small manual force. And it aims at enabling it to aim at the simplification of a structure.
[0004]
[Means for Solving the Problems]
According to the first aspect of the present invention, when the auxiliary wheel of the idle type is moved up and down by manual operation and switched to a supporting operation state where the auxiliary wheel contacts the traveling rail when a trouble occurs, the traveling rail of the regulating member In the range where the engagement with the vehicle is maintained, that is, the position in the vehicle lateral direction relative to the traveling rail is regulated by the regulating member, the driving wheel for propulsion floats from the traveling rail and no trouble occurs. At the time of traveling, when the auxiliary wheel is switched to the non-supporting action state where the auxiliary wheel is lifted from the traveling rail, the driving wheel comes into contact with the traveling rail and can be driven by driving by the driving device.
Therefore, when the transport vehicle travels along the travel rail with manual force when trouble occurs, the drive wheel can be forced to travel on the travel rail with auxiliary wheels instead of the drive wheels. Since there is no need to rotate and the driving device does not become resistance to travel of the transport vehicle due to manual force, the transport vehicle can be traveled easily with less manual force than in the past.
In addition, since the auxiliary wheel that is brought into contact with the travel rail instead of the drive wheel when trouble occurs is simply provided using the restriction function of the restriction member, the configuration can be easily simplified.
Further, the carrier vehicle according to claim 1 is configured such that the bending / extension link is bent and extended between the bending state and the extending state by the operation handle that is operated to swing up and down, and the auxiliary wheel is set to the support action state and the non-support action state. Can be switched.
Therefore, it is easy to quickly switch between the supporting action state and the non-supporting action state as compared with the case where a screw advance mechanism or the like is used while reducing the operating force by the lever action of the operating handle.
In the transport vehicle according to the second aspect, as the auxiliary wheel is switched to the supporting action state, the vehicle body swings around the driven wheel on the other end side in the vehicle body front-rear direction, and the drive wheel on one end side in the vehicle body front-rear direction Surface.
Therefore, the drive wheels are provided on both ends in the longitudinal direction of the vehicle body, and the vehicle body is supported more stably by the driven wheels and auxiliary wheels than when the vehicle body is supported only by the auxiliary wheels when trouble occurs. Easy to drive reliably .
Motomeko 3 guided vehicle described, travel and in the longitudinal direction the installed running rail along the storage rack, by the lifting table drive lifting operations for load transfer, the article relative to storage rack You can enter and leave
[0005]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows an article storage facility such as an automatic warehouse. This article storage facility includes two storage shelves A that are installed at an interval so that the directions for putting in and out the articles face each other, and the storage shelves A. A stacker crane C as an example of a transport vehicle according to the present invention that automatically travels in a work path B formed therebetween is provided, and each storage shelf A has a large number of article storage portions D arranged in parallel in the upper and lower stages. Yes.
[0006]
A single traveling rail 1 is installed in the work path B along the longitudinal direction of the storage shelf A, and an article loading / unloading instruction E is provided to the stacker crane C in the article loading / unloading section E installed on one end side of the work path B. An input controller E1 and a pair of loading platforms E2 are provided across the traveling rail 1, and the stacker crane C travels along the traveling rail 1 based on the loading / unloading command, and the loading platform E2 and the article storage unit It is configured as a loading / unloading transport vehicle that loads and unloads articles F placed on pallet P with D.
[0007]
As shown in FIG. 2, the stacker crane C guides a traveling carriage 2 traveling along the traveling rail 1 to a lifting carriage 3 as a lifting platform for loading and unloading the lifting carriage 3 so as to be movable up and down. A pair of front and rear support columns 4 to be supported is provided, and the lifting carriage 3 is provided with a fork device 5 for transferring articles.
[0008]
The lower end portion of each support column 4 is bolted to a support column fixing bracket 4a fixed to the traveling vehicle body 2, and the upper end portions of the support columns 4 are guided and supported along guide rails 6 installed above the work path. The upper frame 7 is connected.
[0009]
The elevating carriage 3 is suspended and supported by elevating chains 8 connected to the left and right sides thereof. The elevating chain 8 includes a guide sprocket 9 provided on the upper frame 7 and a guide sprocket 10 provided on one support column 4. And is connected to a winding drum 11 provided at one end of the traveling vehicle body 2.
Then, the take-up drum 11 is driven and rotated in the forward and reverse directions by the elevating electric motor M1 so that the elevating carriage 3 is driven up and down by the drawing and winding operation of the elevating chain 8.
[0010]
As shown in FIGS. 3 and 4, the traveling vehicle body 2 has two front and rear wheels 12 that can travel on the traveling rail 1, and the traveling rail 1 so as to regulate the position of the traveling rail 1 in the lateral width direction of the vehicle body. The supporting member is in contact with the traveling rail 1 by traveling up and down with respect to the traveling vehicle body 2 by the regulating member 13 provided at two places before and after engaging with the vehicle, the traveling drive device 14 provided with the traveling electric motor M2, and traveling. An auxiliary wheel lifting / lowering unit 16 having a freewheeling auxiliary wheel 15 that can be switched to an unsupported action state that is levitated from the rail 1 is provided, and further, current is collected from a power supply device installed on the floor surface side. A control device (not shown) for controlling the operation of the current collector and the stacker crane C is provided.
[0011]
Each of the regulating members 13 includes a pair of left and right wheels sandwiching the traveling rail 1 from the left and right sides near the wheel 12 and rolling around the vertical axis along the side surface of the stacker crane C as the vehicle travels. The lower idler roller 13a is provided.
In addition, a pair of left and right upper idle rollers 17 that roll around the vertical axis along the side surface of the stacker crane C as the stacker crane C travels are sandwiched between the upper rail 7 and the guide rail 6 from the left and right. It is provided at the front and rear ends.
[0012]
And the wheel of the one end side of the vehicle body front-back direction of the two wheels 12 is comprised by the drive wheel 12a for a propulsion driven with the drive device 14 for driving | running | working, and the wheel of the other end side of a vehicle body front-back direction is comprised. The stacker crane C is configured as a free-wheeling driven wheel 12b and is self-propelled along the traveling rail 1 by being driven by the traveling drive unit 14 while being prevented from falling by the upper idler roller 17 provided on the upper frame 7. It is configured freely.
[0013]
As shown in FIGS. 5 and 6, the auxiliary wheel lifting unit 16 is fixed to a fixing portion 18 provided on the front surface of the traveling vehicle body 2 on the side of the driving wheel 12 a, and the auxiliary wheel 15 is transverse axis X <b> 1 orthogonal to the traveling direction. A wheel support frame 20 that is rotatably supported around and a lifting operation tool 21 that lifts and lowers the auxiliary wheel 15 by manually moving the wheel support frame 20 up and down is assembled to a base frame 22. The frame 22 is provided with a base plate 23 for fixing to the fixing portion 18.
[0014]
The fixing portion 18 is formed with a dovetail guide groove 19 into which the base plate 23 is removably inserted from the lateral direction of the vehicle body. The base plate 23 fitted in the guide groove 19 is fixed with a bolt or the like. The auxiliary wheel lifting / lowering unit 16 is detachably fixed to the traveling vehicle body 2.
Therefore, the auxiliary wheel lifting / lowering unit 16 is removed from the traveling vehicle body 2 during normal traveling, and the auxiliary wheel lifting / lowering unit 16 is attached to the traveling vehicle body 2 when a trouble such as a power failure occurs where power cannot be supplied to the traveling electric motor M2. be able to.
[0015]
As shown in FIG. 7, the lifting / lowering operation tool 21 is operated to bend and extend into a bent state and an extended state by a manual operation handle 24 that is operated to swing up and down, and the operation handle 24 that swings up and down. A bending / extending link 25 and a slide shaft member 26 fixed to the upper surface of the wheel support frame 20 are provided. The bending / extending link 25 is capable of swinging a pair of upper and lower link members 25a, 25b around a horizontal axis X2 by a connecting pin 29. The base frame 22 is provided with a guide member 27 configured to be connected and guiding the slide movement of the slide shaft member 26 in the vertical direction.
[0016]
A pair of left and right brackets 28 are fixed to the base frame 22, and the operation handle 24 is supported by the bracket 28 so as to be swingable up and down around the horizontal axis X <b> 3, and of the upper link member 25 a of the pair of upper and lower link members. The upper end portion is connected to the bracket 28 so as to be swingable up and down around the horizontal axis X4, and the lower end portion of the lower link member 25b is connected to the upper end portion of the slide shaft member 26 so as to be swingable up and down around the horizontal axis X4. Yes.
[0017]
A connecting pin 29 of the bending / extending link 25 is inserted into the operation handle 24, and a pin insertion hole 30 having a diameter larger than the outer diameter of the connecting pin 29 is integrated as the operation handle 24 swings up and down. Is provided so as to swing.
Then, the bending / extension link 25 is bent and stretched in a bent state and an extended state by pushing and pulling the connecting pin 29 accompanying the swing of the pin insertion hole 30 by the operation handle 24, and the slide shaft member 26 is moved up and down together with the wheel support frame 20. The auxiliary wheel 15 is linked to the bending / extension link 25 so as to be adjusted up and down by bending and stretching.
[0018]
Then, the auxiliary wheel 15 is switched to the support operation state in the extended state of the bending / extending link 25, and the driving wheel 12a floats from the traveling rail 1 within a range in which the engagement of the restricting member 13 with the traveling rail 1 is maintained. In the refraction state of 25, the driving wheel 12a is brought into contact with the traveling rail 1 by switching to the non-supporting action state.
The operation handle 24 is provided with a fixing tool (not shown) for fixing the operation position of the operation handle 24 at the end position of the swing range so as to be switched between a fixed state and a fixed release state.
[0019]
Next, the raising / lowering operation with respect to the traveling vehicle body 2 of the auxiliary wheel 15 by the raising / lowering operation tool 21 is demonstrated.
FIG. 7 (a) shows a state in which the operation handle 24 is pushed down and the auxiliary wheel 15 is switched to the non-supporting state, and the connecting pin 29 is pulled out to the front side of the vehicle body, and the bending / extending link 25 is operated in the bending state. As a result, the slide shaft member 26 is slid upward together with the wheel support frame 20, and the auxiliary wheel 15 is levitated from the traveling rail 1.
[0020]
As the operating wheel 24 is pushed up from the supporting state where the auxiliary wheel 15 is lifted from the traveling rail 1, the connecting pin 29 is pushed toward the support column 4 and the slide shaft member 26 slides downward. Then, the auxiliary wheel 15 contacts the traveling rail 1.
[0021]
Then, when the auxiliary wheel 15 is in contact with the traveling rail 1 and the operation handle 24 is further pushed up to operate the bending / extension link 25 to be in the extended state, as shown in FIG. Then, the traveling vehicle body 2 is swung up and down with the driven wheel 12b as a fulcrum, the auxiliary wheel 15 is switched to the supporting action state as shown in FIG. The stacker crane C is lifted by a flying height H (about 1 mm in this embodiment), and the stacker crane C is supported on the traveling rail 1 by the driven wheel 12b and the auxiliary wheel 15.
[0022]
With the switch the auxiliary wheels 15 to support the action state, the vehicle body 2 so is UeYura movement in the fulcrum driven wheel 12b, the lower idle roller 13a which is provided in each of the regulating member 13 of the running rail 1 While sliding upwardly toward along the side, the flying height H of the drive wheel 12a is smaller than the engagement of the vertical direction relative to the running rail 1 by the lower idler roller 13a, the drive wheels 12a are regulating member It is levitated from the traveling rail 1 within a range in which the engagement of the 13 traveling rails 1 is maintained.
[0023]
Further, with the switching between the auxiliary wheels 15 to support the action state, the slide upward direction along the side surface of the upper idle roller 17 also guide rails 6 that sandwich the guide rail 6, the flying height of the drive wheels 12a H is smaller than the amount by which the upper free-rolling roller 17 is sandwiched in the vertical direction with respect to the guide rail 6, and the upper free-rolling roller 17 is maintained in a state where it can roll along the side surface of the guide rail 6.
[0024]
Therefore, when a trouble such as a power failure that cannot supply electric power to the traveling electric motor M2 occurs, the stacker crane C that is prevented from falling by the upper idler roller 17 can travel along the traveling rail 1 with a small manual force. it can.
[0025]
[Other Embodiments]
1. In the above embodiment, a transport vehicle that travels along a single travel rail with two wheels provided before and after the traveling direction is shown. However, with three or more wheels provided symmetrically before and after the traveling direction. It may be a transport vehicle that travels along a plurality of travel rails.
2. In the above embodiment, one of the two wheels that can freely travel on the traveling rail is configured as a driving wheel for propulsion driven by a driving device, but all of the plurality of wheels are configured as driving wheels for propulsion. It may be configured.
3. In the above embodiment, the transport vehicle provided with the driving device driven by the power supplied from the ground side such as the floor surface is shown, but the battery is mounted and driven by the power supplied from the battery. The conveyance vehicle provided with the drive device may be sufficient.
In this case, if a trouble occurs in which the battery is consumed and the drive device cannot be driven, the vehicle can be driven by the auxiliary wheel.
4). The regulating member that engages with the traveling rail so as to regulate the position in the vehicle body lateral direction with respect to the traveling rail of the transport vehicle may be a wheel for preventing the wheel from coming off integrally with the outer peripheral portion of the wheel .
[Brief description of the drawings]
FIG. 1 is a perspective view of an article storage facility. FIG. 2 is a partially omitted side view of a transport vehicle (stacker crane). FIG. 3 is a side view of an essential part of the transport vehicle (stacker crane). [Fig. 5] Side view of the main part [Fig. 6] Front view of the main part [Fig. 7] Enlarged side view of the main part [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Traveling rail 2 Car body 3 Lifting stand 12 Wheel 12a Drive wheel 12b Follower wheel 13 Restriction member 14 Drive device 15 Auxiliary wheel 24 Operation handle 25 Bending-extending link A Storage shelf F Article

Claims (3)

走行レール上を走行自在な複数の車輪と、前記走行レールに対する車体横幅方向での位置を規制するように前記走行レールに係合する規制部材とを備えると共に、前記複数の車輪のうちの少なくとも一部が、駆動装置にて駆動される推進用の駆動輪に構成されて、前記走行レールに沿って自走自在に構成された搬送車であって、
車体に対する昇降によって、前記規制部材の前記走行レールに対する係合を維持する範囲で前記駆動輪を前記走行レールから浮上させるように、前記走行レールに接当される支持作用状態と、前記駆動輪を前記走行レールに接当させるように、前記走行レールから浮上される非支持作用状態に切換えられる遊転式の補助輪が、手動操作にて昇降調節されるように前記車体に設けられ
上下揺動操作される操作ハンドルにて屈折状態と伸展状態とに屈伸操作される屈伸リンクに、その屈伸により昇降調節されるように前記補助輪が連係されている搬送車。
A plurality of wheels that can travel on the traveling rail; and a restricting member that engages with the traveling rail so as to restrict a position of the traveling rail in a lateral direction of the vehicle body, and at least one of the plurality of wheels. The part is configured as a propulsion driving wheel driven by a driving device, and is configured to be capable of self-propelling along the traveling rail,
A supporting action state in contact with the traveling rail so that the driving wheel is lifted from the traveling rail within a range in which engagement of the regulating member with the traveling rail is maintained by raising and lowering the vehicle body; A free-wheeling auxiliary wheel that is switched to a non-supporting action state that is levitated from the traveling rail so as to contact the traveling rail is provided in the vehicle body so as to be adjusted up and down by manual operation ,
A transport vehicle in which the auxiliary wheel is linked to a bending-extension link that is bent and extended in a bent state and an extended state by an operation handle that is vertically swung .
前記複数の車輪のうちの車体前後方向の一端側の車輪が、前記駆動装置にて駆動される推進用の駆動輪に構成され、車体前後方向の他端側の車輪が、遊転自在な従動輪として構成され、
前記補助輪が、前記従動輪を支点として車体を上下揺動させるように設けられている請求項1記載の搬送車。
A wheel on one end side in the vehicle longitudinal direction among the plurality of wheels is configured as a driving wheel for propulsion driven by the drive device, and a wheel on the other end side in the vehicle longitudinal direction is a freely rotatable slave. Configured as a driving wheel,
The transport vehicle according to claim 1, wherein the auxiliary wheel is provided so as to swing the vehicle body up and down with the driven wheel as a fulcrum.
駆動昇降操作自在な荷移載用の昇降台を備えて、収納棚の長手方向に沿って設置された前記走行レールに沿って走行して、前記収納棚に対する物品の出し入れを行う入出庫用の搬送車として構成されている請求項1又は2に記載の搬送車。 A loading / unloading platform that can be driven up and down freely, and travels along the traveling rail installed along the longitudinal direction of the storage shelf, for loading and unloading articles to and from the storage shelf. The conveyance vehicle of Claim 1 or 2 comprised as a conveyance vehicle.
JP4716198A 1998-02-27 1998-02-27 Transport vehicle Expired - Fee Related JP3690561B2 (en)

Priority Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010235289A (en) * 2009-03-31 2010-10-21 Daifuku Co Ltd Stacker crane
JPWO2014129066A1 (en) * 2013-02-20 2017-02-02 村田機械株式会社 Stacker crane and its operation method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002085394A (en) * 2000-09-14 2002-03-26 Ge Medical Systems Global Technology Co Llc Gantry-moved type ct scanner
JP5341055B2 (en) * 2010-12-07 2013-11-13 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Gantry mobile CT scanner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010235289A (en) * 2009-03-31 2010-10-21 Daifuku Co Ltd Stacker crane
JPWO2014129066A1 (en) * 2013-02-20 2017-02-02 村田機械株式会社 Stacker crane and its operation method

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