JP5713173B2 - Goods transport equipment - Google Patents

Goods transport equipment Download PDF

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JP5713173B2
JP5713173B2 JP2010140966A JP2010140966A JP5713173B2 JP 5713173 B2 JP5713173 B2 JP 5713173B2 JP 2010140966 A JP2010140966 A JP 2010140966A JP 2010140966 A JP2010140966 A JP 2010140966A JP 5713173 B2 JP5713173 B2 JP 5713173B2
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fall prevention
prevention body
ladder
state
traveling direction
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水越 弘
弘 水越
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Daifuku Co Ltd
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Description

本発明は、走行方向に沿って走行する走行台車と、前記走行台車における前記走行方向一方側の端部に立設された支柱に沿って昇降する昇降台と、前記支柱の前記走行方向一方側に位置して作業者が昇り降り可能な昇降具とを備えて構成されたスタッカークレーンが設けられ、物品を搬送するときに前記スタッカークレーンが走行する搬送用範囲と、当該搬送用範囲を含み且つ前記搬送用範囲より前記走行方向の両側に延びるスタッカークレーンが走行可能な走行用範囲とが設定されている物品搬送設備に関する。   The present invention includes a traveling cart that travels along a traveling direction, a lifting platform that moves up and down along a support column that is erected on one end of the traveling direction of the traveling vehicle, and one traveling direction side of the support column. A stacker crane that is provided with a lifting tool that can be moved up and down by an operator and includes a transport range in which the stacker crane travels when transporting an article, and the transport range. The present invention relates to an article transport facility in which a travel range in which a stacker crane that extends on both sides in the travel direction from the transport range can travel is set.

かかる物品搬送設備は、スタッカークレーンが搬送用範囲を走行して物品を搬送するものであり、スタッカークレーンに対してメンテナンス作業を行う場合には、そのスタッカークレーンに備えられた昇降具を作業者が昇り降りしてメンテナンス作業を行うものである。
そして、このような物品搬送設備では従来から、スタッカークレーンが走行可能な走行用範囲は、スタッカークレーンが走行方向一方側の端部に位置する状態において支柱とその支柱より走行方向一方側に設置された設置物(例えば制御手段を囲う柵や建屋に設置された梁等)との間に干渉防止用の隙間が形成されるように設定されている。これにより、誤動作等によりスタッカークレーンが搬送用範囲からオーバーランして走行用範囲の走行方向一方側の端部まで走行したとしても、支柱が設置物に接触しないようになっている。
また、昇降具が、作業者が昇り降りする上下方向に沿って設けられた梯子にて構成されており、干渉防止用の隙間を、支柱から梯子の走行方向一方側の端部までの幅より広く設定している。これにより、スタッカークレーンが走行用範囲の走行方向一方側の端部まで走行したとしても、梯子が設置物に接触しないようになっている(例えば、特許文献1参照。)。
Such an article transporting equipment is one in which a stacker crane travels in a transport range and transports an article. When performing maintenance work on a stacker crane, an operator installs a lifting tool provided in the stacker crane. Ascending and descending to perform maintenance work.
Conventionally, in such an article conveying facility, the traveling range in which the stacker crane can travel is installed on the one side in the traveling direction from the support column and the support column in a state where the stacker crane is located at one end in the traveling direction. It is set so that a gap for preventing interference is formed between the installed object (for example, a fence surrounding the control means or a beam installed in the building). Thereby, even if the stacker crane overruns from the conveyance range due to a malfunction or the like and travels to the end on one side in the traveling direction of the traveling range, the column does not contact the installation object.
In addition, the lifting tool is composed of a ladder provided along the vertical direction in which the worker ascends and descends, and the interference prevention gap is formed from the width from the column to the end on one side of the ladder in the traveling direction. Widely set. Thereby, even if the stacker crane travels to the end on one side in the traveling direction of the traveling range, the ladder does not come into contact with the installation (see, for example, Patent Document 1).

特開2005−231841号公報JP 2005-231841 A

このように従来では、昇降具を、作業者が昇り降りする梯子にて構成されているが、その昇降具に、梯子を昇り降りする作業者の乗降経路の走行方向一方側及び横幅方向の両側を覆う落下防止用の落下防止体を備えて、梯子を昇り降りする作業者が落下することを防止することが考えられる。
しかし、昇降具に上記のような落下防止体を備えると、支柱から昇降具の走行方向一方側の端部までの幅が大きくなるため、スタッカークレーンが走行用範囲の走行方向一方側の端部まで走行しても昇降具が設置物に接触しないように、干渉防止用の隙間を、落下防止体を備えた昇降具の支柱から走行方向一方側の端部までの幅より大きくする必要がある。
ちなみに、干渉防止用の隙間を大きくすると、設置物を走行用範囲から大きく離して設置する必要があるために物品搬送設備が走行方向に大型化するという不都合や、走行用範囲を設置物近くまで設定することができないために走行用範囲が走行方向に狭くなるため結果として搬送用範囲が狭くなるといった不都合が生じる。
As described above, conventionally, the lifting tool is configured by a ladder on which an operator ascends and descends. It is conceivable to provide a fall prevention body for preventing fall of the worker to prevent the worker who goes up and down the ladder from falling.
However, if the lifting tool is provided with a fall prevention body as described above, the width from the support column to the end on one side in the traveling direction of the lifting tool is increased, so the stacker crane has one end in the traveling direction in the traveling range. It is necessary to make the gap for preventing interference larger than the width from the column of the lifting tool provided with the fall prevention body to the end on one side in the traveling direction so that the lifting tool does not come into contact with the installation object even when traveling to .
By the way, if the gap for preventing interference is increased, it is necessary to install the installation object greatly away from the traveling range, so that the inconvenience that the article transport equipment becomes larger in the traveling direction and the traveling range to the vicinity of the installation object. Since it cannot be set, the travel range is narrowed in the travel direction, resulting in a disadvantage that the transport range is narrowed.

本発明は、上記実状に鑑みて為されたものであって、その目的は、昇降具に落下防止体を備えながらも干渉防止用の隙間を小さくできる物品搬送設備を提供する点にある。   The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an article transport facility that can reduce the interference-preventing gap while the lifting tool includes the fall prevention body.

本発明にかかる物品搬送設備は、走行方向に沿って走行する走行台車と、前記走行台車における前記走行方向一方側の端部に立設された支柱に沿って昇降する昇降台と、前記支柱の前記走行方向一方側に位置して作業者が昇り降り可能な昇降具とを備えて構成されたスタッカークレーンが設けられ、物品を搬送するときに前記スタッカークレーンが走行する搬送用範囲と、当該搬送用範囲を含み且つ前記搬送用範囲より前記走行方向の両側に延びるスタッカークレーンが走行可能な走行用範囲とが設定されているものであって、その第1特徴構成は、
前記昇降具が、作業者が昇り降りする上下方向に沿って設けられた梯子と、その梯子を昇り降りする作業者の乗降経路の前記走行方向の一方側及び前記走行方向と交差する横幅方向の両側を覆う落下防止用の落下防止体とを備えて構成され、前記走行用範囲が、前記スタッカークレーンが前記走行用範囲の前記走行方向一方側の端部に位置する状態において、前記支柱とその支柱より前記走行方向一方側に設置された設置物との間に干渉防止用の間隔が形成されるように設定され、前記昇降具が、前記支柱から前記昇降具の前記走行方向一方側の端部までの幅を前記干渉防止用の間隔より広くした幅広状態と、前記支柱から前記昇降具の前記走行方向一方側端部までの幅を前記干渉防止用の隙間より狭くした幅狭状態とに切り換え可能に構成されている点にある。
An article conveying facility according to the present invention includes a traveling carriage that travels along a traveling direction, a lifting platform that moves up and down along a pillar that is erected on one end of the traveling carriage in the traveling direction, A stacker crane provided with a lifting tool that is positioned on one side of the traveling direction and capable of ascending and descending by an operator is provided, and a transport range in which the stacker crane travels when transporting an article, and the transport A traveling range in which a stacker crane including a working range and extending on both sides in the traveling direction from the transporting range is set, and the first characteristic configuration is
The elevating tool has a ladder provided along a vertical direction in which an operator ascends and descends, and one side of the traveling direction of an operator getting on and off the ladder and a lateral direction intersecting the traveling direction. A fall prevention body that covers both sides, and the travel range is in a state where the stacker crane is located at one end of the travel range on the one side in the travel direction. It sets so that the space | interval for interference prevention may be formed between the installation objects installed in the said traveling direction one side from the support | pillar, and the said lifting tool is an edge of the said traveling direction one side of the said lifting tool from the said support | pillar A wide state in which the width to the portion is wider than the interval for preventing interference, and a narrow state in which the width from the support column to the one end portion in the traveling direction of the lifting tool is narrower than the gap for preventing interference. Switchable configuration It lies in the fact that is.

すなわち、昇降具が、作業者が昇り降りする梯子に加えて、その梯子を昇り降りする乗降経路を覆う落下防止用の落下防止体を備えて構成されているため、この落下防止体で作業者を受け止めることで昇降具から作業者が転落することを防止できる。   That is, since the lifting tool is configured to include a fall prevention body for preventing the fall that covers the boarding / alighting path for ascending / descending the ladder in addition to the ladder where the worker ascends / descends, By receiving, it is possible to prevent the operator from falling from the lifting tool.

そして、このように落下防止体が備えられた昇降具は、支柱から走行方向一方側の端部までの幅を干渉防止用の間隔より広くした幅広状態と、支柱から走行方向一方側端部までの幅を干渉回避用の隙間より狭くした幅狭状態とに切り換え可能に構成されている。つまり、昇降具を幅狭状態に切り換えておくことで、スタッカークレーンを走行用範囲の走行方向一方側の端部まで走行したとしても、昇降具が設置物に接触することを回避することができる。   And the lifting tool provided with the fall prevention body in this way has a wide state in which the width from the support column to the end portion on one side in the traveling direction is wider than the interval for preventing interference, and from the support column to the one end portion in the traveling direction. Can be switched to a narrow state in which the width is narrower than the interference avoidance gap. That is, by switching the lifting tool to the narrow state, even if the stacker crane travels to the end on one side in the traveling direction of the traveling range, it can be avoided that the lifting tool contacts the installation object. .

また、干渉防止用の隙間は、昇降具を幅狭状態に切り換えられた状態における支柱から昇降具の走行方向一方側の端部までの幅より大きければよく、干渉防止用の隙間を幅広状態に切り換えられた昇降具の支柱から走行方向一方側の端部までの幅より大きくする場合に比べて、干渉防止用の隙間を小さくできる。   In addition, the interference prevention gap needs only to be larger than the width from the support column to the end on one side in the traveling direction of the lifting tool when the lifting tool is switched to the narrow state. The interference prevention gap can be made smaller than in the case where the width is larger than the width from the support column of the switched lifting tool to the end on one side in the traveling direction.

従って、昇降具に落下防止体を備えながらも干渉防止用の隙間を小さくできる物品搬送設備を提供することができるに至った。   Therefore, it has been possible to provide an article transport facility that can reduce the interference preventing gap while the lifting tool is provided with a fall prevention body.

本発明にかかる物品搬送設備の第2特徴構成は、第1特徴構成において、前記梯子が、前記支柱に固定状態で連結支持され、前記落下防止体が、前記走行方向一方側に移動させて前記梯子から離間させた離間位置と、前記走行方向他方側に移動させて前記梯子に近接させた近接位置とに移動可能に構成され、前記昇降具が、前記落下防止体を前記離間位置に移動させることで前記幅広状態に切り換えられ、前記落下防止体を前記近接位置に移動させることで前記幅狭状態に切り換えられるように構成されている点にある。   According to a second characteristic configuration of the article conveying facility according to the present invention, in the first characteristic configuration, the ladder is fixedly connected to the support column in a fixed state, and the fall prevention body is moved to one side in the traveling direction. It is configured to be movable to a separation position separated from the ladder and a proximity position moved to the other side in the traveling direction and close to the ladder, and the lifting tool moves the fall prevention body to the separation position. Thus, it is configured to be switched to the wide state and to be switched to the narrow state by moving the fall prevention body to the close position.

すなわち、梯子が支柱に固定状態で連結支持されているため、作業者が梯子を昇り降りするときに梯子ががたつき難く、作業者が上り下りし易いものとなる。また、落下防止体を離間位置と近接位置に移動させることで、梯子を動かすことなく昇降具を幅広状態と幅狭状態に切り換えることができるため、落下防止体と梯子とを一体的に移動させて昇降具を切り換えるものに比べて、軽い力で昇降具を幅広状態と幅狭状態とに切り換えることができる。   That is, since the ladder is connected and supported to the support column in a fixed state, the ladder is less likely to rattle when the worker ascends and descends the ladder, and the operator can easily ascend and descend. In addition, by moving the fall prevention body to the separation position and the proximity position, the lifting tool can be switched between the wide state and the narrow state without moving the ladder, so that the fall prevention body and the ladder are moved together. Therefore, the lifting / lowering tool can be switched between the wide state and the narrow state with a light force as compared with the switching of the lifting / lowering tool.

本発明にかかる物品搬送設備の第3特徴構成は、第2特徴構成において、前記落下防止体を支持する支持手段が、前記落下防止体が前記離間位置から前記走行方向一方側に移動することを規制する規制部材と、前記落下防止体の前記離間位置から前記走行方向他方側となる近接位置側への移動を許容する状態で前記落下防止体を離間位置に保持する保持部材とを備えて構成されている点にある。   According to a third characteristic configuration of the article conveying facility according to the present invention, in the second characteristic configuration, the supporting means for supporting the fall prevention body moves the fall prevention body from the separated position to the one side in the traveling direction. A regulating member that regulates, and a holding member that holds the fall prevention body at the separation position in a state in which the movement of the fall prevention body from the separation position to the proximity position that is the other side in the traveling direction is permitted. It is in the point.

すなわち、落下防止体は、規制部材と保持部材とで離間位置で保持されているため、作業者が昇降具を昇り降りしているときに落下防止体が不意に離間位置から移動することを防止することができる。
そして、昇降具が幅広状態に切り換えられた状態でスタッカークレーンが搬送用範囲からオーバーランして走行用範囲の走行方向一方側の端部まで走行したとしても、その端部に走行する手前で落下防止体に設置物が当接した後は、スタッカークレーンの走行方向一方側への移動によって落下防止体が走行方向他方側に押し操作されるため、落下防止体を近接位置に移動させることができる。よって、昇降具が幅広状態に切り換えられている状態でスタッカークレーンが走行用範囲の走行方向一方側の端部まで走行しても、昇降具が幅広状態から幅狭状態に切り換えられることで、昇降具の破損を防止することができる。
That is, since the fall prevention body is held at the separated position by the regulating member and the holding member, the fall prevention body is prevented from unexpectedly moving from the separated position when the operator ascends and descends the lifting tool. can do.
And even if the stacker crane overruns from the conveyance range and travels to the end on one side in the traveling direction of the traveling range with the lifting tool switched to the wide state, it falls before traveling to that end. After the installation object comes into contact with the prevention body, the fall prevention body is pushed to the other side in the traveling direction by the movement of the stacker crane to the one side in the traveling direction, so that the fall prevention body can be moved to the close position. . Therefore, even if the stacker crane travels to one end in the traveling direction of the traveling range while the lifting tool is switched to the wide state, the lifting tool is switched from the wide state to the narrow state. Damage to the tool can be prevented.

本発明にかかる物品搬送設備の第4特徴構成は、第3特徴構成において、前記落下防止体が、前記支持手段にて前記梯子に連結されている点にある。   A fourth characteristic configuration of the article conveying facility according to the present invention is that, in the third characteristic configuration, the fall prevention body is connected to the ladder by the support means.

すなわち、落下防止体は、支持手段にて梯子に連結されているため、その梯子より走行方向他方側に位置する支柱に落下防止体を連結する場合に比べて、落下防止体を走行方向にコンパクトに構成して、昇降具の軽量化を図ることができる。   In other words, since the fall prevention body is connected to the ladder by the support means, the fall prevention body is more compact in the running direction than when the fall prevention body is connected to the column located on the other side of the running direction from the ladder. Thus, the weight of the lifting tool can be reduced.

本発明にかかる物品搬送設備の第5特徴構成は、第3又は第4特徴構成において、前記保持部材が、近接位置に移動した前記落下防止体を前記近接位置に保持するように構成されている点にある。   A fifth feature configuration of the article transport facility according to the present invention is configured such that, in the third or fourth feature configuration, the holding member holds the fall prevention body moved to the close position at the close position. In the point.

すなわち、落下防止体が近接位置に移動したときにその落下防止体を保持手段にて近接位置に保持することができるため、落下防止体が近接位置に移動した後に落下防止体が走行方向に移動することを防止できるため、スタッカークレーンが走行用範囲の走行方向一方側の端部から離れた場合でも、落下防止体の状態からスタッカークレーンが走行用範囲の走行方向一方側の端部まで走行したことを作業者が認識することができる。   That is, when the fall prevention body moves to the proximity position, the fall prevention body can be held at the proximity position by the holding means, so that the fall prevention body moves in the traveling direction after the fall prevention body moves to the proximity position. Therefore, even when the stacker crane is separated from the end on the one side in the traveling direction of the traveling range, the stacker crane travels from the state of the fall prevention body to the end on the one side in the traveling direction of the traveling range. An operator can recognize this.

本発明にかかる物品搬送設備の第6特徴構成は、第1特徴構成において、前記梯子が、非使用時に位置させる収納位置とこの収納位置より下方の使用位置とに移動操作可能に構成され、前記昇降具が、前記梯子が前記使用位置に移動操作されるに伴って前記落下防止体が前記梯子から離間して前記幅広状態に切り換えられ、且つ、前記梯子が前記収納位置に移動操作されるに伴って前記落下防止体が前記梯子に近接して前記幅狭状態に切り換えられるべく、前記梯子と前記落下防止体とを連動連結する連動手段を備えて構成されている点にある。   According to a sixth characteristic configuration of the article conveying facility according to the present invention, in the first characteristic configuration, the ladder is configured to be movable and operated between a storage position to be positioned when not in use and a use position below the storage position, As the elevating tool is operated to move the ladder to the use position, the fall prevention body is separated from the ladder and switched to the wide state, and the ladder is moved to the storage position. Accordingly, the fall prevention body is provided with interlocking means for interlockingly connecting the ladder and the fall prevention body so that the fall prevention body can be switched to the narrow state in the vicinity of the ladder.

すなわち、梯子を下方の使用位置に移動操作することで、落下防止体が離間位置に移動して昇降具が幅広状態に切り換えられ、梯子を上方の収納位置に移動操作することで、落下防止体が近接位置に移動して昇降具が幅狭状態に切り換えられる。
よって、作業者が梯子を昇り降りするときには、梯子を使用位置に移動操作することにより落下防止体が梯子から離間して作業者の乗降経路が形成されるため、作業者は梯子を昇り降りし易くなり、作業者が梯子を昇り降りしないときには、梯子を格納状態に移動操作することにより落下防止体が梯子に近接して昇降具が幅狭状態に切り換えられるため、スタッカークレーンが走行用範囲の走行方向一方側の端部まで走行したときに昇降具が設置物に接触することを防止することができる。
That is, by moving the ladder to the lower use position, the fall prevention body moves to the separated position and the lifting tool is switched to the wide state, and by moving the ladder to the upper storage position, the fall prevention body Moves to a close position and the lifting tool is switched to a narrow state.
Therefore, when the worker ascends and descends the ladder, the fall prevention body is separated from the ladder by moving the ladder to the use position, so that the entry / exit route for the worker is formed. When the operator does not go up and down the ladder, moving the ladder to the retracted state causes the fall prevention body to move closer to the ladder and the lifting tool is switched to the narrow state, so that the stacker crane is in the traveling range. It is possible to prevent the lifting tool from coming into contact with the installation object when traveling to one end in the traveling direction.

第1実施形態における物品搬送設備の正面図Front view of article transport equipment in the first embodiment 第1実施形態における物品搬送設備の側面図Side view of article transport equipment in the first embodiment 第1実施形態におけるスタッカークレーンが搬送用範囲の前方側端部に走行した状態を示す側面図The side view which shows the state which the stacker crane in 1st Embodiment traveled to the front side edge part of the range for conveyance. 第1実施形態におけるスタッカークレーンが走行用範囲の前方側端部に走行した状態を示す側面図The side view which shows the state which the stacker crane in 1st Embodiment drive | worked to the front side edge part of the range for driving | running | working. 第1実施形態における昇降具の斜視図The perspective view of the raising / lowering tool in 1st Embodiment 第1実施形態における幅広状態の昇降具の平面図The top view of the lifting tool of the wide state in 1st Embodiment 第1実施形態における幅狭状態の昇降具の平面図The top view of the raising / lowering tool of the narrow state in 1st Embodiment 第1実施形態における昇降具の一部拡大側面図The partially expanded side view of the lifting tool in 1st Embodiment 第2実施形態における幅広状態の昇降具の平面図The top view of the lifting tool of the wide state in 2nd Embodiment 第2実施形態における幅広状態(a)と幅狭状態(b)とを示す昇降具の側面図Side view of lifting tool showing wide state (a) and narrow state (b) in the second embodiment

〔第1実施形態〕
次に、本発明の物品搬送設備の第1実施形態について図面に基づいて説明する。
図1及び図2に示すように、物品搬送設備には、物品収納用の収納部を棚横幅方向及び上下方向に並べて備えた収納棚1と、収納棚1の前方側を収納棚1の横幅方向に延びる走行経路に沿って走行するスタッカークレーン2と、スタッカークレーン2の走行経路に対して収納棚1が存在する側とは反対側に配設された荷受台3とが設けられている。
以下、スタッカークレーン2の走行方向一方側を前方側(図2における下側)、スタッカークレーン2の走行方向他方側を後方側(図2における上側)と称し、走行方向と直交する水平方向を横幅方向と称して説明する。
[First Embodiment]
Next, a first embodiment of the article transport facility of the present invention will be described based on the drawings.
As shown in FIGS. 1 and 2, the article transport facility includes a storage shelf 1 in which storage units for storing articles are arranged in the horizontal and vertical directions of the shelf, and the front side of the storage shelf 1 is the horizontal width of the storage shelf 1. A stacker crane 2 that travels along a traveling path that extends in the direction is provided, and a load receiving platform 3 that is disposed on the opposite side of the traveling path of the stacker crane 2 from the side on which the storage rack 1 exists.
Hereinafter, one side in the traveling direction of the stacker crane 2 is referred to as the front side (lower side in FIG. 2), and the other side in the traveling direction of the stacker crane 2 is referred to as the rear side (upper side in FIG. 2). This will be described as a direction.

収納棚1及びスタッカークレーン2は、建屋の1階の床面上に設置されており、建屋における収納棚1及びスタッカークレーン2が設置される箇所は、1階から3階まで吹き抜けとなっている。また、収納棚1及びスタッカークレーン2は、1階の床面上に立設された周壁4の内側に設けられている。荷受台3は、建屋の1階、2階及び3階の夫々の床面上設置されており、周壁4の外側に設けられている。   The storage shelf 1 and the stacker crane 2 are installed on the floor of the first floor of the building, and the place where the storage shelf 1 and the stacker crane 2 are installed in the building is atrium from the first floor to the third floor. . Moreover, the storage shelf 1 and the stacker crane 2 are provided inside the peripheral wall 4 erected on the floor surface of the first floor. The receiving platform 3 is installed on the floors of the first, second and third floors of the building, and is provided outside the peripheral wall 4.

スタッカークレーン2には、1F床面上に設置された走行レール6上を走行方向に沿って走行する走行台車7と、走行台車7における走行方向の両側端部の夫々に立設された一対の支柱8に沿って昇降する昇降台9と、昇降台9に支持されて自己と収納棚1及び荷受台3との間で物品を移載する移載装置10とが備えられている。そして、スタッカークレーン2は、走行台車7の走行、昇降台9の昇降及び移載装置10の作動により、収納棚1と各階に設置された荷受台3との間で物品を搬送するように構成されている。   The stacker crane 2 includes a traveling carriage 7 that travels along a traveling direction on a traveling rail 6 installed on the floor of the first floor, and a pair of erected on both side ends of the traveling carriage 7 in the traveling direction. An elevator 9 that moves up and down along the column 8 and a transfer device 10 that is supported by the elevator 9 and transfers articles between itself, the storage shelf 1 and the cargo receiver 3 are provided. The stacker crane 2 is configured to convey articles between the storage shelf 1 and the load receiving platform 3 installed on each floor by the traveling of the traveling carriage 7, the lifting and lowering of the lifting platform 9, and the operation of the transfer device 10. Has been.

物品搬送設備には、スタッカークレーン2の作動を制御する制御手段(図示せず)が設けられており、この制御手段は、収納棚1と各階の荷受台3との間で物品を搬送するべくスタッカークレーン2の作動を制御する搬送処理を実行するように構成されている。そして、このように制御手段にて搬送処理が実行されてスタッカークレーン2が走行する範囲が、物品を搬送するときにスタッカークレーン2が走行する搬送用範囲Aとして設定されている。   The article transport facility is provided with a control means (not shown) for controlling the operation of the stacker crane 2, and this control means is intended to transport the articles between the storage shelf 1 and the receiving platform 3 on each floor. It is comprised so that the conveyance process which controls the action | operation of the stacker crane 2 may be performed. The range in which the stacker crane 2 travels when the transport process is executed by the control means in this way is set as a transport range A in which the stacker crane 2 travels when transporting articles.

また、走行レール6の両端部に対応する箇所の夫々には、スタッカークレーン2の走行台車7に当接してスタッカークレーン2が走行用範囲Bからオーバーランすることを規制する一対のストッパ11が設けられており、誤動作等によりスタッカークレーン2が搬送用範囲Aからオーバーランした場合でも、走行用範囲Bからオーバーランすることをストッパ11により規制して、スタッカークレーン2が周壁4に衝突しないように構成されている。そして、一対のストッパ11の間のスタッカークレーン2が物理的に走行可能な範囲が、搬送用範囲Aを含み且つ搬送用範囲Aより走行方向の両側に延びるスタッカークレーン2が走行可能な走行用範囲Bとして設定されている。   In addition, a pair of stoppers 11 that abut against the traveling carriage 7 of the stacker crane 2 and restrict the stacker crane 2 from overrunning the traveling range B are provided at locations corresponding to both ends of the traveling rail 6. Even if the stacker crane 2 overruns from the transport range A due to malfunction or the like, the stopper 11 restricts the overrun from the travel range B so that the stacker crane 2 does not collide with the peripheral wall 4. It is configured. The range in which the stacker crane 2 between the pair of stoppers 11 can physically travel includes the transport range A, and the travel range in which the stacker crane 2 extending from the transport range A to both sides in the travel direction can travel. B is set.

走行用範囲Bは、図4に示すようにスタッカークレーン2が走行用範囲Bの前方側端部に位置する状態において、一対の支柱8における前方側の支柱8aとその前方側の支柱8aより前方側に設置された周壁4の前壁部分4aとの間に干渉防止用の間隔Cが形成されるように設定されている。尚、周壁4が設置物に相当し、周壁4における前壁部分4aからは階間にある梁4bが後方側に張り出しており、この梁4bと前方側の支柱8aとの間に干渉防止用の間隔Cが形成されている。また、搬送用範囲Aは、図3に示すようにスタッカークレーン2が搬送用範囲Aの前方側端部に位置する状態において、前方側の支柱8aと梁4bとの間に、干渉防止用の間隔Cより広い間隔Dが形成されている。   As shown in FIG. 4, the traveling range B is forward of the front column 8 a and the front column 8 a of the pair of columns 8 in a state where the stacker crane 2 is positioned at the front end of the traveling range B. The distance C for preventing interference is set between the peripheral wall 4 and the front wall portion 4a installed on the side. Note that the peripheral wall 4 corresponds to an installation, and a beam 4b between the floors protrudes from the front wall portion 4a of the peripheral wall 4 to the rear side, and for preventing interference between the beam 4b and the front column 8a. The interval C is formed. Further, as shown in FIG. 3, the conveyance range A is a state for preventing interference between the front column 8 a and the beam 4 b in a state where the stacker crane 2 is located at the front end of the conveyance range A. A distance D wider than the distance C is formed.

図3及び図4に示すように、スタッカークレーン2には、前方側の支柱8aを走行台車7における前方側の端部に立設された支柱8として、その前方側の支柱8aの走行方向一方側に位置して作業者が昇り降り可能な昇降具12が備えられている。   As shown in FIG. 3 and FIG. 4, the stacker crane 2 includes a front column 8 a as a column 8 standing on the front end of the traveling carriage 7, and one side in the traveling direction of the front column 8 a. A lifting tool 12 that is positioned on the side and that allows an operator to go up and down is provided.

図5に示すように、昇降具12は、作業者が昇り降りする上下方向に沿って設けられた梯子14と、その梯子14を昇り降りする作業者の乗降経路Sの前方側及び横幅方向の両側を覆う落下防止用の落下防止体15とを備えて構成されている。
そして、落下防止体15は、前方側に移動させて梯子14から離間させた離間位置(図3及び図6参照)と、後方側に移動させて梯子14に近接させた近接位置(図4及び図7参照)とに前後方向に移動可能に構成されており、昇降具12は、落下防止体15を離間位置に移動させることで支柱8から前方側の端部までの幅Eを干渉防止用の間隔Cより広く且つ間隔Dより狭くした幅広状態(図3参照)に切り換えられ、落下防止体15を近接位置に移動させることで支柱8から前方側の端部までの幅Fを干渉防止用の間隔Cより狭くした幅狭状態(図4参照)に切り換えられるように構成されている。
つまり、昇降具12は、落下防止体15を前後方向に移動させることにより、幅広状態と幅狭状態とに切り換え可能に構成されている。ちなみに、図4では、落下防止体15を部分的に後方側に移動させて、昇降具12を部分的に幅狭状態に切り換えられている。
As shown in FIG. 5, the lifting tool 12 includes a ladder 14 provided along an up-down direction in which an operator ascends and descends, and a front side and a lateral width direction of an entry / exit route S of an operator who ascends and descends the ladder 14. The fall prevention body 15 for fall prevention which covers both sides is comprised.
The fall prevention body 15 is moved to the front side and separated from the ladder 14 (see FIGS. 3 and 6), and the fall prevention body 15 is moved to the rear side and close to the ladder 14 (FIGS. 4 and 4). 7), the lifting / lowering tool 12 moves the fall prevention body 15 to the separated position so that the width E from the support column 8 to the front end is for interference prevention. Is switched to a wide state (see FIG. 3) that is wider than the interval C and narrower than the interval D, and the fall prevention body 15 is moved to a close position so that the width F from the support column 8 to the front end is for interference prevention. It is configured to be switched to a narrow state (see FIG. 4) narrower than the interval C.
That is, the lifting tool 12 is configured to be switchable between the wide state and the narrow state by moving the fall prevention body 15 in the front-rear direction. Incidentally, in FIG. 4, the fall prevention body 15 is partially moved to the rear side, and the lifting tool 12 is partially switched to the narrow state.

また、図5に示すように、昇降具12は、落下防止体15が離間位置に移動させて幅広状態に切り換えられた状態では、落下防止体15の内側に作業者の乗降経路Sが形成されて、作業者が昇り降り可能な状態となり、落下防止体15が近接位置に移動させて幅狭状態に切り換えられた状態では、落下防止体15が乗降経路Sに位置して、作業者が昇り降りすることを規制するようになっている。   Further, as shown in FIG. 5, in the lifting tool 12, when the fall prevention body 15 is moved to the separated position and switched to the wide state, an operator getting-on / off path S is formed inside the fall prevention body 15. Thus, in a state where the worker can go up and down and the fall prevention body 15 is moved to the close position and switched to the narrow state, the fall prevention body 15 is positioned in the getting-on / off route S and the worker rises. It has come to regulate getting off.

次に、昇降具12について説明を加える。
図5〜図7に示すように、梯子14は、左右一対の縦枠14aを上下方向に複数並設される横枠14bにて連結して構成されている。そして、梯子連結部材17にて縦枠14aと支柱8とが連結されており、このように梯子14は、梯子連結部材17にて支柱8に固定状態で連結支持されている。尚、梯子14は、走行台車7の前方側端部より前方側に突出しない状態で設けられている。
Next, the lifting tool 12 will be described.
As shown in FIGS. 5 to 7, the ladder 14 is configured by connecting a pair of left and right vertical frames 14 a with a plurality of horizontal frames 14 b arranged in the vertical direction. And the vertical frame 14a and the support | pillar 8 are connected by the ladder connection member 17, and the ladder 14 is connected and supported to the support | pillar 8 by the ladder connection member 17 in this way. The ladder 14 is provided so as not to protrude forward from the front end of the traveling carriage 7.

落下防止体15は、上下方向に複数並設される平面視U字状の背カゴ枠15aにて構成されている。そして、複数の背カゴ枠15aの夫々は、その後端部が防止体連結部材18にて梯子14の縦枠14aに連結されており、このように落下防止体15は、防止体連結部材18にて梯子14に連結されている。尚、防止体連結部材18が、落下防止体15を支持する支持手段に相当する。また、落下防止体15は、走行台車7の前方側端部より前方側に突出する状態で設けられている。   The fall prevention body 15 is constituted by a back cage frame 15a having a U-shape in a plan view and arranged in parallel in the vertical direction. Each of the plurality of back cage frames 15 a has a rear end portion connected to the vertical frame 14 a of the ladder 14 by the prevention body connecting member 18, and the fall prevention body 15 is thus connected to the prevention body connecting member 18. Connected to the ladder 14. The prevention body connecting member 18 corresponds to a support means for supporting the fall prevention body 15. Further, the fall prevention body 15 is provided in a state of protruding forward from the front end of the traveling carriage 7.

複数の背カゴ枠15aの夫々は、前後方向にスライド移動可能に防止体連結部材18に連結支持されており、複数の背カゴ枠15aの一部又は全部を防止体連結部材18に対して前方側にスライド移動させることで落下防止体15が離間位置に移動し、複数の背カゴ枠15aの一部又は全部を防止体連結部材18に対して後方側にスライド移動させることで、落下防止体15が近接位置に移動するように構成されている。
また、防止体連結部材18には、落下防止体15が離間位置から前方側に移動することを規制する規制部材21と、落下防止体15を離間位置及び近接位置で保持する保持部材22とを備えて構成されている。
Each of the plurality of back cage frames 15a is connected to and supported by the prevention body connecting member 18 so as to be slidable in the front-rear direction, and a part or all of the plurality of back basket frames 15a is forward of the prevention body connection member 18. The fall prevention body 15 is moved to the separated position by sliding to the side, and a part or all of the plurality of back cage frames 15a are slid rearward with respect to the prevention body connecting member 18, thereby the fall prevention body. 15 is configured to move to a proximity position.
Further, the prevention body connecting member 18 includes a regulation member 21 that regulates the movement of the fall prevention body 15 from the separation position to the front side, and a holding member 22 that holds the fall prevention body 15 at the separation position and the proximity position. It is prepared for.

次に、落下防止体15と防止体連結部材18との連結構造について説明を加える。
図8に示すように、背カゴ枠15aにおける前後方向に延びる部分の後端部及び防止体連結部材18の前端部の夫々は筒状に形成されており、その背カゴ枠15aの後端部が防止体連結部材18の前端部に嵌合されている。
Next, the connection structure between the fall prevention body 15 and the prevention body connecting member 18 will be described.
As shown in FIG. 8, the rear end portion of the back cage frame 15a extending in the front-rear direction and the front end portion of the prevention member connecting member 18 are each formed in a cylindrical shape, and the rear end portion of the back cage frame 15a. Is fitted to the front end portion of the prevention member connecting member 18.

防止体連結部材18には、上方に突出する状態で且つ上下方向に移動不能な状態で規制部材21が取り付けられている。この規制部材21は、前面及び後面が鉛直面に形成されており、落下防止体15が離間位置や近接位置に位置している状態では、落下防止体15の上部に形成された被係合孔15bに位置している。そして、落下防止体15が離間位置に位置している状態では、規制部材21の後面が落下防止体15に当接することで落下防止体15が離間位置より前方側に移動することが規制され、落下防止体15が近接位置に位置している状態では、規制部材21の前面が落下防止体15に当接することで落下防止体15が近接位置より後方側に移動することが規制される。   The regulating member 21 is attached to the prevention body connecting member 18 in a state of protruding upward and being unable to move in the vertical direction. The restricting member 21 has a front surface and a rear surface formed in a vertical surface, and in a state where the fall prevention body 15 is located at a separation position or a close position, an engaged hole formed in the upper part of the fall prevention body 15. 15b. And in the state where the fall prevention body 15 is located at the separation position, the rear surface of the regulation member 21 is in contact with the fall prevention body 15 so that the fall prevention body 15 is restricted from moving forward from the separation position. In a state where the fall prevention body 15 is located at the close position, the front face of the regulating member 21 is in contact with the fall prevention body 15 so that the fall prevention body 15 is restricted from moving rearward from the close position.

また、防止体連結部材18には、規制部材21が取り付けられた箇所より後方側に、上方に突出する状態で且つ上下方向に移動可能な状態で保持部材22が取り付けられている。この保持部材22は、前面が前方側ほど下方に位置する傾斜面に形成され且つ後面が鉛直面に形成されており、落下防止体15が離間位置に位置している状態では落下防止体15より後方側に位置し、また、落下防止体15が近接位置に位置している状態では、落下防止体15の被係合孔15bに位置している。そして、落下防止体15が離間位置に位置している状態では、保持部材22の前面が落下防止体15に当接することで落下防止体15が離間位置より後方側に移動しないように保持され、落下防止体15が近接位置に位置している状態では、保持部材22の後面が落下防止体15に当接することで落下防止体15が近接位置より前方側に移動しないように保持されている。   In addition, a holding member 22 is attached to the prevention body connecting member 18 in a state of protruding upward and movable in the vertical direction on the rear side from the place where the regulating member 21 is attached. The holding member 22 is formed in an inclined surface that is positioned lower on the front side toward the front side, and the rear surface is formed in a vertical surface. In the state where the fall prevention body 15 is located in the separated position, the fall prevention body 15 In the state where it is located on the rear side and the fall prevention body 15 is located in the proximity position, it is located in the engaged hole 15b of the fall prevention body 15. And in the state where the fall prevention body 15 is located at the separated position, the fall prevention body 15 is held so as not to move to the rear side from the separated position by the front surface of the holding member 22 coming into contact with the fall prevention body 15. In a state where the fall prevention body 15 is located at the close position, the rear surface of the holding member 22 is held against the fall prevention body 15 so that the fall prevention body 15 is not moved forward from the close position.

保持部材22による保持について説明を加えると、図8に示すように、落下防止体15が離間位置に位置している状態では、保持部材22の前面が落下防止体15に当接することで落下防止体15が離間位置より後方側に移動しないように保持されているが、落下防止体15が設定力以上の操作力で後方側に押し操作させることにより、落下防止体15が保持部材22を押し下げながら後方側に移動するように保持されている。そして、落下防止体15が近接位置に移動するに伴って、落下防止体15による保持部材22に対する押圧が解除されて図外の付勢手段の付勢力により保持部材22が被係合孔15bから上方に突出することで、落下防止体15が近接位置で保持されるように構成されている。
つまり、保持部材22は、落下防止体15が後方側に設定力以上の操作力で後方側に向けて押し操作されることで、落下防止体15の離間位置から後方側となる近接位置側への移動を許容する状態で、落下防止体15を離間位置で保持するように構成されている。
ちなみに、落下防止体15を近接位置から前方側に移動させるときは、作業者が保持部材22を押し下げた状態で落下防止体15を前方側に移動操作する。
When the holding by the holding member 22 is described, as shown in FIG. 8, in the state where the fall prevention body 15 is located at the separated position, the front of the holding member 22 abuts against the fall prevention body 15 to prevent the fall. Although the body 15 is held so as not to move to the rear side from the separation position, the fall prevention body 15 pushes the holding member 22 down by causing the fall prevention body 15 to push backward with an operation force equal to or greater than the set force. However, it is held so as to move backward. As the fall prevention body 15 moves to the close position, the pressure applied to the holding member 22 by the fall prevention body 15 is released, and the holding member 22 is released from the engaged hole 15b by the urging force of the urging means (not shown). By projecting upward, the fall prevention body 15 is configured to be held at the close position.
In other words, the holding member 22 is pushed from the separation position of the fall prevention body 15 toward the rear side by the pushing operation of the fall prevention body 15 to the rear side with an operation force equal to or greater than the set force to the rear side. The fall prevention body 15 is configured to be held at the separated position in a state in which the movement of this is allowed.
Incidentally, when the fall prevention body 15 is moved from the proximity position to the front side, the operator moves the fall prevention body 15 to the front side in a state where the holding member 22 is pushed down.

従って、図3に示すように、昇降具12が幅広状態に切り換えられていても、その昇降具12の支柱8aから前方側の端部までの幅Eが間隔Dより狭いため、スタッカークレーン2が物品を搬送するべく搬送用範囲Aを走行したときに昇降具12が周壁4に当接することを回避することができる。
また、昇降具12が幅広状態に切り換えられていると、スタッカークレーン2が搬送用範囲Aから前方側にオーバーランして走行用範囲Bの前方側の端部まで走行した場合に昇降具12の一部が周壁4に当接するが、スタッカークレーン2が前方側に走行して離間位置に位置する落下防止体15に周壁4に当接して当該周壁4にて落下防止体15が設定力以上の操作力で後方側に向けて押し操作されることで、落下防止体15が離間位置から近接位置に部分的に移動して、図4に示すように昇降具12が幅狭状態に切り換えられる。このようにスタッカークレーン2が前方側の端部に走行して落下防止体15が周壁4に接触しても、そのスタッカークレーン2の走行によって昇降具12が幅広状態から幅狭状態に切り換えられるため、昇降具12が周壁4に接触することにより破損することを回避できる。
ちなみに、図4では、スタッカークレーン2の走行による押し操作が解除された後も慣性力によって背カゴ枠15aが後方側に移動して落下防止体15が部分的に近接位置に移動した状態を示したが、スタッカークレーン2の走行速度が遅い場合等では、スタッカークレーン2による押し操作が解除されるに伴って背カゴ枠15aがその場所に停止して落下防止体15が部分的に離間位置と近接位置との途中の位置で停止する場合もある。
Therefore, as shown in FIG. 3, even if the lifting tool 12 is switched to the wide state, the width E from the column 8a of the lifting tool 12 to the end on the front side is narrower than the interval D. It is possible to avoid the lifting tool 12 from coming into contact with the peripheral wall 4 when traveling in the transport range A to transport the article.
Further, when the lifting tool 12 is switched to the wide state, when the stacker crane 2 overruns from the conveyance range A to the front side and travels to the front end of the traveling range B, the lifting tool 12 Although a part contacts the peripheral wall 4, the stacker crane 2 travels forward and comes into contact with the peripheral wall 4 against the fall prevention body 15 located at the separated position, and the fall prevention body 15 exceeds the set force at the peripheral wall 4. When the operation force is pushed toward the rear side, the fall prevention body 15 partially moves from the separation position to the proximity position, and the lifting tool 12 is switched to the narrow state as shown in FIG. In this way, even when the stacker crane 2 travels to the front end and the fall prevention body 15 contacts the peripheral wall 4, the lifting tool 12 is switched from the wide state to the narrow state by the travel of the stacker crane 2. It is possible to prevent the lifting tool 12 from being damaged by contacting the peripheral wall 4.
Incidentally, FIG. 4 shows a state in which the back cage frame 15a is moved to the rear side by the inertial force and the fall prevention body 15 is partially moved to the close position even after the pushing operation by the traveling of the stacker crane 2 is released. However, when the traveling speed of the stacker crane 2 is slow, etc., the back cage frame 15a stops at that position as the push operation by the stacker crane 2 is released, and the fall prevention body 15 is partially moved away from the separated position. In some cases, the vehicle stops at a position in the middle of the proximity position.

〔第2実施形態〕
次に、本発明の物品搬送設備の第2実施形態について図面に基づいて説明する。
尚、第2実施形態は、昇降具12の構成が異なる以外は第1実施形態と同様に構成されているため、第1実施形態と同様の構成については同じ符号をつけて説明は省略し、主に第1実施形態と異なる構成を説明する。
[Second Embodiment]
Next, a second embodiment of the article conveyance facility of the present invention will be described based on the drawings.
In addition, since 2nd Embodiment is comprised similarly to 1st Embodiment except the structure of the raising / lowering tool 12, it attaches | subjects the same code | symbol about the structure similar to 1st Embodiment, and abbreviate | omits description, A configuration different from the first embodiment will be mainly described.

図9及び図10に示すように、連結部材24にて背カゴ枠15aの前後中央部と前方側の支柱8aとが横幅方向に沿う軸心周りに揺動自在に連結されており、このように落下防止体15は、連結部材24にて前方側の支柱8aに横軸心周りに揺動自在に連結されている。   As shown in FIGS. 9 and 10, the connecting member 24 connects the front and rear central portions of the back cage frame 15a and the front support column 8a so as to be swingable about the axis along the lateral width direction. The fall prevention body 15 is connected to the front support column 8a by a connecting member 24 so as to be swingable around the horizontal axis.

複数の背カゴ枠15aの夫々は、横軸心周りに揺動することで、水平姿勢(図10(a)参照)とこの水平姿勢から後方側端部が上方に移動し且つ前方側端部が下方に移動した傾斜姿勢(図10(b)参照)とに姿勢変更されるように構成されており、背カゴ枠15aが水平姿勢に姿勢変更されることで落下防止体15の前端部が梯子14から離間するため、昇降具12が幅広状態に切り換えられ、背カゴ枠15aが傾斜姿勢に姿勢変更されることで落下防止体15の前端部が梯子14に近接するため、昇降具12が幅狭状態に切り換えられる。   Each of the plurality of back cage frames 15a swings around the horizontal axis, thereby moving the horizontal posture (see FIG. 10A) and the rear end portion upward from the horizontal posture, and the front end portion. The posture is changed to the inclined posture (see FIG. 10B) that has moved downward, and the posture of the fall prevention body 15 is changed by changing the posture of the back cage frame 15a to the horizontal posture. Since the lifting tool 12 is switched to the wide state to be separated from the ladder 14, and the posture of the back cage frame 15 a is changed to the inclined posture, the front end portion of the fall prevention body 15 approaches the ladder 14. Switch to the narrow state.

背カゴ枠15aの後方側端部に、梯子14が横幅方向に沿う軸心周りに揺動自在に連結されており、梯子14は、収納位置(図10(b)参照)とこの収納位置より下方の使用位置(図10(a)参照)とに上下方向に移動操作可能に構成されている。また、梯子14は、図外の弦巻バネ等の付勢部材にて収納位置に付勢されており、付勢部材の付勢力に抗して作業者の手動操作にて梯子14が引き下げられることにより梯子14が使用位置に移動操作され、また、作業者が梯子14から手を離すことで付勢部材の付勢力により収納位置に移動操作されるように構成されている。   A ladder 14 is connected to the rear side end portion of the back cage frame 15a so as to be swingable around an axial center along the lateral width direction. The ladder 14 is connected to the storage position (see FIG. 10B) and the storage position. It is configured to be movable up and down to the lower use position (see FIG. 10A). The ladder 14 is urged to the storage position by an urging member such as a string spring not shown in the figure, and the ladder 14 is pulled down manually by an operator against the urging force of the urging member. Thus, the ladder 14 is operated to move to the use position, and when the operator releases his / her hand from the ladder 14, the ladder 14 is moved to the storage position by the urging force of the urging member.

そして、梯子14が使用位置に移動操作されるに伴って落下防止体15が水平姿勢に姿勢変更されて、昇降具12が幅広状態に切り換えられ、梯子14が収納位置に移動操作されるに伴って落下防止体15が傾斜姿勢に姿勢変更されて、昇降具12が幅狭状態に切り換えられるべく、昇降具12には梯子14と落下防止体15とを連動連結する連動手段25を備えられている。この連動手段25は、梯子14と落下防止体15と連結部材24とで構成されている。   As the ladder 14 is moved to the use position, the fall prevention body 15 is changed to the horizontal posture, the lifting tool 12 is switched to the wide state, and the ladder 14 is moved to the storage position. Accordingly, the lifting tool 12 is provided with interlocking means 25 for interlockingly connecting the ladder 14 and the fall prevention body 15 so that the fall preventing body 15 is changed to an inclined posture and the lifting tool 12 is switched to a narrow state. Yes. The interlocking means 25 includes a ladder 14, a fall prevention body 15, and a connecting member 24.

また、詳細な説明は省略するが、昇降具12には、昇降具12が幅狭状態か否かを検出する検出手段として、梯子14を収納位置に移動させるに伴ってオン操作されるリミットスイッチが設けられており、制御手段は、リミットスイッチがオン操作されている状態では搬送処理を実行し、リミットスイッチがオン操作されていない状態では搬送処理を実行しないように構成されている。   Although detailed description is omitted, the lifting tool 12 is a limit switch that is turned on when the ladder 14 is moved to the storage position as detection means for detecting whether or not the lifting tool 12 is in a narrow state. The control means is configured to execute the transfer process when the limit switch is turned on and not to execute the transfer process when the limit switch is not turned on.

従って、図10(a)に示すように、作業者が梯子14を使用位置に移動操作することで、落下防止体15が離間位置に移動して昇降具12が幅広状態に切り換えられ、また、このように梯子14を使用位置に移動操作された状態では搬送処理が実行されずにスタッカークレーン2が停止しているため、スタッカークレーン2が停止している状態で作業者は梯子14を昇り降りすることができる。
また、図10(b)に示すように、付勢部材の付勢力により梯子14を収納位置に移動操作することで、落下防止体15が接近位置に移動して昇降具12が幅狭状態に切り換えられ、このように昇降具12が幅狭状態に切り換えられている状態で搬送処理が実行されるため、スタッカークレーン2が搬送用範囲Aから前方側にオーバーランして走行用範囲Bの前方側の端部まで走行した場合でも昇降具12が周壁4に当接することがないようにできる。
Accordingly, as shown in FIG. 10 (a), when the operator moves the ladder 14 to the use position, the fall prevention body 15 moves to the separation position, and the lifting tool 12 is switched to the wide state. In this manner, when the ladder 14 is moved to the use position, the stacker crane 2 is stopped without performing the conveyance process. Therefore, the worker ascends and descends the ladder 14 while the stacker crane 2 is stopped. can do.
Further, as shown in FIG. 10B, by moving the ladder 14 to the storage position by the urging force of the urging member, the fall prevention body 15 is moved to the approach position, and the lifting tool 12 is in a narrow state. Since the transfer process is executed in such a state that the lifting tool 12 is switched to the narrow state in this way, the stacker crane 2 overruns from the transfer range A to the front side and moves forward of the travel range B. Even when traveling to the end on the side, the lifting tool 12 can be prevented from coming into contact with the peripheral wall 4.

〔別実施形態〕
(1) 上記第1実施形態では、複数の背カゴ枠15aの夫々を前後方向にスライド移動可能に構成して、落下防止体15を全体的に離間位置と近接位置とに移動可能にし、昇降具12を全体的に幅広状態と幅狭状態とに切り換え可能に構成したが、複数の背カゴ枠15aのうちの一部を前後方向にスライド移動可能に構成して、落下防止体15を部分的に離間位置と近接位置とに移動可能に構成し、昇降具12を部分的に幅広状態と幅狭状態とに切り換え可能に構成してもよい。
具体的には、例えば、複数の背カゴ枠15aのうちの設置物に当接する虞がある背カゴ枠15aを前後方向にスライド移動可能に防止体連結部材18に連結支持し、設置物に当接する虞のない背カゴ枠15aを前後方向にスライド移動不能に防止体連結部材18に連結支持してもよい。
[Another embodiment]
(1) In the first embodiment, each of the plurality of back cage frames 15a is configured to be slidable in the front-rear direction so that the fall prevention body 15 can be moved to the separation position and the proximity position as a whole. Although the tool 12 is configured to be switchable between a wide state and a narrow state as a whole, a part of the plurality of back cage frames 15a is configured to be slidable in the front-rear direction so that the fall prevention body 15 is partially In other words, it may be configured to be movable between the separated position and the close position, and the lifting tool 12 may be configured to be partially switchable between the wide state and the narrow state.
Specifically, for example, the back cage frame 15a that may come into contact with the installation object among the plurality of back cage frames 15a is connected and supported to the prevention body connecting member 18 so as to be slidable in the front-rear direction. You may connect and support the back cage | basket | frame 15a which does not have a possibility of contact | connecting to the prevention body connection member 18 so that sliding movement to the front-back direction is impossible.

また、上記第1実施形態のように複数の背カゴ枠15aの夫々を前後方向にスライド移動可能に構成して、昇降具12の全体を前後方向の幅を幅広状態と幅狭状態とに切り換え可能に構成した場合、複数の背カゴ枠15aを複数本の連結杆にて連結して、複数の背カゴ枠15aが一体的に前後方向にスライド移動するように構成してもよい。   Further, as in the first embodiment, each of the plurality of back cage frames 15a is configured to be slidable in the front-rear direction, and the entire lifting tool 12 is switched between the wide state and the narrow state in the front-rear direction. In the case where it is possible to configure, the plurality of back cage frames 15a may be connected by a plurality of connecting rods, and the plurality of back cage frames 15a may be configured to slide integrally in the front-rear direction.

(2) 上記第1実施形態では、支持部材に規制部材21と保持部材22とを備えて構成したが、落下防止体15に規制部材21と保持部材22とを備えて構成してもよい。つまり、落下防止体15に規制部材21と保持部材22とを備え、規制部材21が支持部材に当接することで落下防止体15が離間位置から走行方向一方側に移動することを規制し、保持部材22が支持部材に当接することで離間位置に保持するように構成してもよい。 (2) In the first embodiment, the support member includes the restriction member 21 and the holding member 22. However, the fall prevention body 15 may include the restriction member 21 and the holding member 22. In other words, the fall prevention body 15 includes the regulation member 21 and the holding member 22, and the regulation member 21 abuts on the support member to regulate and hold the fall prevention body 15 from moving from the separated position to one side in the traveling direction. You may comprise so that the member 22 may hold | maintain in a separated position by contact | abutting to a support member.

(3) 上記第1実施形態では、梯子14を、前方側の支柱8aに固定状態で連結支持し、落下防止体15を、離間位置と近接位置とに前後方向に移動可能に梯子14に連結支持して、梯子14と落下防止体15とのうちの落下防止体15のみを前後方向に移動させることで、昇降具12を幅広状態と幅狭状態とに切り換えるように構成したが、梯子14を、前方側の支柱8aに近接させた位置と前方側の支柱8aから離間させた位置とに前後方向に移動可能に前方側の支柱8aに連結支持し、落下防止体15を、梯子14に固定状態で連結支持して、梯子14と落下防止体15とを一体的に前後方向に移動させることで、昇降具12を幅広状態と幅狭状態とに切り換えるように構成してもよい。 (3) In the first embodiment, the ladder 14 is fixedly connected to the front column 8a in a fixed state, and the fall prevention body 15 is connected to the ladder 14 so as to be movable in the front-rear direction between the separated position and the adjacent position. By supporting and moving only the fall prevention body 15 of the ladder 14 and the fall prevention body 15 in the front-rear direction, the lifting tool 12 is configured to be switched between the wide state and the narrow state. Is connected and supported to the front column 8a so as to be movable in the front-rear direction to a position close to the front column 8a and a position separated from the front column 8a. The lifting tool 12 may be switched between the wide state and the narrow state by connecting and supporting in a fixed state and moving the ladder 14 and the fall prevention body 15 integrally in the front-rear direction.

(4) 上記第1実施形態では、落下防止体15を防止体連結部材18にて梯子14に連結したが、落下防止体15を防止体連結部材18にて前方側の支柱8aに連結してもよい。 (4) In the first embodiment, the fall prevention body 15 is connected to the ladder 14 by the prevention body connecting member 18, but the fall prevention body 15 is connected to the front column 8 a by the prevention body connecting member 18. Also good.

(5) 上記第1実施形態では、保持部材22を、近接位置に移動した落下防止体15を近接位置に保持するように構成したが、保持部材22を、近接位置に移動した落下防止体15を近接位置に保持しないように構成してもよい。具体的には、例えば、保持部材22として、落下防止体15を前方側に付勢する圧縮スプリングを設けて、圧縮スプリングの付勢力に抗して設置物にて落下防止体15が押し操作されることで落下防止体15が離間位置から近接位置側に移動し、設置物による押し操作が解除されるに伴って圧縮スプリングの付勢力により落下防止体15が離間位置に復帰するように構成してもよい。 (5) In the first embodiment, the holding member 22 is configured to hold the fall prevention body 15 moved to the proximity position at the proximity position, but the fall prevention body 15 moved to the proximity position. May be configured not to be held in the proximity position. Specifically, for example, a compression spring that urges the fall prevention body 15 forward is provided as the holding member 22, and the fall prevention body 15 is pushed by an installation object against the urging force of the compression spring. Thus, the fall prevention body 15 moves from the separated position to the close position side, and the fall prevention body 15 returns to the separated position by the urging force of the compression spring as the push operation by the installation object is released. May be.

2 スタッカークレーン
7 走行台車
8a 支柱
9 昇降台
12 昇降具
14 梯子
15 落下防止体
18 支持手段
21 規制部材
22 保持部材
A 搬送用範囲
B 走行用範囲
C 干渉防止用の間隔
S 乗降経路
2 Stacker crane 7 Traveling carriage 8a Post 9 Lifting platform 12 Lifting tool 14 Ladder 15 Fall prevention body 18 Support means 21 Restricting member 22 Holding member A Transporting range B Traveling range C Interference prevention interval S Boarding route

Claims (6)

走行方向に沿って走行する走行台車と、前記走行台車における前記走行方向一方側の端部に立設された支柱に沿って昇降する昇降台と、前記支柱の前記走行方向一方側に位置して作業者が昇り降り可能な昇降具とを備えて構成されたスタッカークレーンが設けられ、
物品を搬送するときに前記スタッカークレーンが走行する搬送用範囲と、当該搬送用範囲を含み且つ前記搬送用範囲より前記走行方向の両側に延びるスタッカークレーンが走行可能な走行用範囲とが設定されている物品搬送設備であって、
前記昇降具が、作業者が昇り降りする上下方向に沿って設けられた梯子と、その梯子を昇り降りする作業者の乗降経路の前記走行方向の一方側及び前記走行方向と交差する横幅方向の両側を覆う落下防止用の落下防止体とを備えて構成され、
前記走行用範囲が、前記スタッカークレーンが前記走行用範囲の前記走行方向一方側の端部に位置する状態において、前記支柱とその支柱より前記走行方向一方側に設置された設置物との間に干渉防止用の間隔が形成されるように設定され、
前記昇降具が、前記支柱から前記昇降具の前記走行方向一方側の端部までの幅を前記干渉防止用の間隔より広くした幅広状態と、前記支柱から前記昇降具の前記走行方向一方側端部までの幅を前記干渉防止用の隙間より狭くした幅狭状態とに切り換え可能に構成されている物品搬送設備。
A traveling carriage that travels along the traveling direction; a lifting platform that moves up and down along a column that is erected on one end of the traveling direction of the traveling carriage; A stacker crane configured with a lifting tool that allows an operator to ascend and descend;
A transport range in which the stacker crane travels when transporting articles and a travel range in which the stacker crane that includes the transport range and extends on both sides in the travel direction from the transport range can travel are set. An article transport facility,
The elevating tool has a ladder provided along a vertical direction in which an operator ascends and descends, and one side of the traveling direction of an operator getting on and off the ladder and a lateral direction intersecting the traveling direction. It is configured with a fall prevention body for fall prevention covering both sides,
In the state where the travel range is located at the end of the travel range on one side of the travel range, the stacker crane is located between the support column and an installation installed on the one side in the travel direction from the support column. Set to form an interference prevention interval,
The lifting device has a wide state in which a width from the support column to the end portion on the one side in the traveling direction of the lifting device is wider than the interval for preventing interference, and one end in the traveling direction of the lifting device from the support column An article conveying facility configured to be switchable to a narrow state in which the width to the section is narrower than the interference prevention gap.
前記梯子が、前記支柱に固定状態で連結支持され、
前記落下防止体が、前記走行方向一方側に移動させて前記梯子から離間させた離間位置と、前記走行方向他方側に移動させて前記梯子に近接させた近接位置とに移動可能に構成され、
前記昇降具が、前記落下防止体を前記離間位置に移動させることで前記幅広状態に切り換えられ、前記落下防止体を前記近接位置に移動させることで前記幅狭状態に切り換えられるように構成されている請求項1記載の物品搬送設備。
The ladder is connected and supported in a fixed state to the column,
The fall prevention body is configured to be movable between a separation position moved to one side in the traveling direction and separated from the ladder, and a proximity position moved to the other side in the traveling direction and brought close to the ladder,
The elevating tool is configured to be switched to the wide state by moving the fall prevention body to the separation position, and to be switched to the narrow state by moving the fall prevention body to the proximity position. The article conveying facility according to claim 1.
前記落下防止体を支持する支持手段が、前記落下防止体が前記離間位置から前記走行方向一方側に移動することを規制する規制部材と、前記落下防止体の前記離間位置から前記走行方向他方側となる近接位置側への移動を許容する状態で前記落下防止体を離間位置に保持する保持部材とを備えて構成されている請求項2記載の物品搬送設備。   A supporting means for supporting the fall prevention body includes a regulating member that regulates movement of the fall prevention body from the separated position to the one side in the running direction, and the other side in the running direction from the separated position of the fall prevention body. The article conveyance facility according to claim 2, further comprising: a holding member that holds the fall prevention body at a separated position in a state in which movement toward the adjacent position is allowed. 前記落下防止体が、前記支持手段にて前記梯子に連結されている請求項3記載の物品搬送設備。   The article conveyance facility according to claim 3, wherein the fall prevention body is connected to the ladder by the support means. 前記保持部材が、近接位置に移動した前記落下防止体を前記近接位置に保持するように構成されている請求項3又は4記載の物品搬送設備。   The article conveying facility according to claim 3 or 4, wherein the holding member is configured to hold the fall prevention body moved to the proximity position at the proximity position. 前記梯子が、非使用時に位置させる収納位置とこの収納位置より下方の使用位置とに移動操作可能に構成され、
前記昇降具が、前記梯子が前記使用位置に移動操作されるに伴って前記落下防止体が前記梯子から離間して前記幅広状態に切り換えられ、且つ、前記梯子が前記収納位置に移動操作されるに伴って前記落下防止体が前記梯子に近接して前記幅狭状態に切り換えられるべく、前記梯子と前記落下防止体とを連動連結する連動手段を備えて構成されている請求項1記載の物品搬送設備。
The ladder is configured to be movable between a storage position to be positioned when not in use and a use position below the storage position,
When the ladder is moved to the use position, the fall prevention member is moved away from the ladder and switched to the wide state, and the ladder is moved to the storage position. The article according to claim 1, further comprising interlocking means for interlockingly connecting the ladder and the fall prevention body so that the fall prevention body is switched to the narrow state near the ladder. Transport equipment.
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