JP7106111B2 - folding container - Google Patents

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JP7106111B2
JP7106111B2 JP2018145671A JP2018145671A JP7106111B2 JP 7106111 B2 JP7106111 B2 JP 7106111B2 JP 2018145671 A JP2018145671 A JP 2018145671A JP 2018145671 A JP2018145671 A JP 2018145671A JP 7106111 B2 JP7106111 B2 JP 7106111B2
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side wall
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憲司 秋山
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Sanko Co Ltd
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Description

本発明は、物品の運搬等に使用される折畳み容器に関するものである。 The present invention relates to a collapsible container used for transporting articles and the like.

従来、物品の運搬等に使用される容器として、平面視略矩形状の底壁構成部と、底壁構成部の各側辺部に対応して、底壁構成部の側辺部の上方に立設される起立姿勢と、底壁構成部の中央部側に寝かされる寝かせ姿勢との間を姿勢変化可能に設けられた側壁部とを備え、全ての側壁部が起立姿勢とされた組立状態と、全ての側壁部が寝かせ姿勢とされた折畳み状態とに状態変化可能な折畳み容器が知られている。また、側壁部は、折畳み容器の組立状態において相対する一対の第１側壁部と、一対の第１側壁部の側辺部間に配置される相対する一対の第２側壁部とを備えている。折畳み容器は、折畳み状態から組立状態とされる場合に、一対の第１側壁部を起立姿勢とすることで、第２側壁部を起立姿勢とすることが可能に構成されている。さらに、各第１側壁部には、両側部から内方に突出する支持突部が設けられており、折畳み容器の組立状態において、第２側壁部の外面側が、第１側壁部の支持突部に略当接して支持されるようになっている。 2. Description of the Related Art Conventionally, as a container used for transportation of goods, a bottom wall forming part having a substantially rectangular shape in a plan view and a The side wall part is provided so as to be able to change its posture between an upright posture and a lying posture lying on the central part side of the bottom wall forming part, and an assembled state in which all the side wall parts are in the standing posture. , and a folded state in which all side walls are in a laid-down position. In addition, the side wall portion includes a pair of first side wall portions that face each other in the assembled state of the folding container, and a pair of second side wall portions that face each other and are arranged between the side portions of the pair of first side wall portions. . The collapsible container is configured such that when the folding container is changed from the folded state to the assembled state, the pair of first side wall portions can be set to the standing posture, so that the second side wall portion can be set to the standing posture. Further, each of the first side walls is provided with support protrusions protruding inward from both sides thereof. It is supported by substantially abutting on the .

ところで、折畳み容器の折畳み状態において、第１側壁部同士が上下に重なる場合には、上側の第１側壁部の支持突部が、下側の第１側壁部の外面（上側を向いている面）に当接し、上側の第１側壁部の内面（下側を向いている面）と、下側の第１側壁部の外面との間に、支持突部の突出長と同じ距離の隙間が形成されてしまうことが懸念される。 By the way, in the folded state of the collapsible container, when the first side walls are vertically overlapped, the support protrusion of the upper side first side wall is positioned on the outer surface (upward facing side) of the lower side first side wall. ), and a gap of the same distance as the projection length of the support protrusion is provided between the inner surface of the upper first side wall portion (the surface facing downward) and the outer surface of the lower first side wall portion. It is feared that it will be formed.

これに対し、第１側壁部の外面側において、折畳み容器を折畳み状態とした場合に、上側の第１側壁部の支持突部が挿入される挿入凹部を設けるといった技術がある（例えば、特許文献１等参照。）。 On the other hand, there is a technique of providing an insertion recess into which the support protrusion of the upper first side wall is inserted when the collapsible container is folded, on the outer surface side of the first side wall (for example, Patent Document 1st prize).

特開平７－８９５４６号公報JP-A-7-89546

上記特許文献１の技術を採用することで、折畳み容器の折畳み状態において、一対の第１側壁部のうち下側に寝かせ姿勢とされている第１側壁部の外面（上面）と、上側に寝かせ姿勢とされている第１側壁部の内面（下面）との間の距離を比較的短くすることができ、結果として、折畳み容器の折畳み状態における高さを低くすることができる。しかしながら、折畳み容器の折畳み状態における運搬・保管効率に関して、更なる改善等が要望されているのも実状である。 By adopting the technique of Patent Document 1, in the folded state of the folding container, the outer surface (upper surface) of the first side wall of the pair of first side walls, which is laid down on the lower side, and the outer surface (upper surface) of the first side wall, which is laid down on the upper side, are arranged. The distance between the inner surface (lower surface) of the first side wall portion in the posture can be made relatively short, and as a result, the height of the collapsible container in the folded state can be reduced. However, in reality, there is a demand for further improvements in transportation and storage efficiency in the folded state of the foldable container.

本発明は、上記例示した問題点等を解決するためになされたものであって、その目的は、折畳み状態における高さを低くすることのできる折畳み容器を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a collapsible container that can be reduced in height when folded.

以下、上記目的等を解決するのに適した各手段につき項分けして説明する。なお、必要に応じて対応する手段に特有の作用効果等を付記する。 Hereinafter, each means suitable for solving the above object will be described separately. It should be noted that actions and effects specific to the corresponding means will be added as necessary.

手段１．平面視略矩形状の底壁構成部と、
前記底壁構成部の各側辺部に対応して、前記底壁構成部の側辺部の上方に立設される起立姿勢と、前記底壁構成部の中央部側に寝かされる寝かせ姿勢との間を姿勢変化可能に設けられた側壁部とを備え、
全ての前記側壁部が前記起立姿勢とされた組立状態と、全ての前記側壁部が前記寝かせ姿勢とされた折畳み状態とに状態変化可能な折畳み容器において、
前記側壁部は、前記組立状態において相対する一対の第１側壁部と、前記一対の第１側壁部の側辺部間に配置される相対する一対の第２側壁部とを備え、
前記第１側壁部は、当該第１側壁部の内面の両側部から内方に突出する支持突部を備え、
前記組立状態において、前記第２側壁部の外面側が、前記第１側壁部の前記支持突部に当接、又は、近接する構成であって、
前記第１側壁部は、前記底壁構成部に対して着脱可能に構成され、
前記第１側壁部の両側部には、前記第１側壁部の厚み方向に貫通する支持収容部が、前記第１側壁部の高さ方向における前記支持突部の上方又は下方に位置するようにして設けられ、
前記折畳み状態において、
前記一対の第１側壁部同士が上下に重なり、
前記一対の第１側壁部のうち下側に配置される第１側壁部は、外面が下向きとなるように前記底壁構成部の上方に載置され、
前記一対の第１側壁部のうち上側に配置される第１側壁部は、外面が上向きとなるように前記底壁構成部の上方に載置され、
前記下側に配置される第１側壁部の前記支持突部が、前記上側に配置される第１側壁部の前記支持収容部に挿入され、
前記上側に配置される第１側壁部の前記支持突部が、前記下側に配置される第１側壁部の前記支持収容部に挿入されることを特徴とする折畳み容器。 Means 1. a bottom wall forming portion having a substantially rectangular shape in a plan view;
A standing posture in which the player is erected above the side portions of the bottom wall-constituting portion corresponding to each side portion of the bottom wall-constituting portion, and a lying posture in which the player is laid down on the central portion side of the bottom wall-constituting portion. A side wall portion provided so that the posture can be changed between
In a collapsible container capable of changing its state between an assembled state in which all of the side walls are in the upright posture and a folded state in which all of the side walls are in the lying posture,
The side wall portion includes a pair of first side wall portions that face each other in the assembled state, and a pair of second side wall portions that face each other and are arranged between side portions of the pair of first side wall portions,
The first side wall includes support protrusions that protrude inward from both sides of the inner surface of the first side wall,
In the assembled state, the outer surface side of the second side wall is in contact with or close to the support protrusion of the first side wall,
The first side wall portion is configured to be detachable with respect to the bottom wall forming portion,
On both sides of the first side wall, support housing portions penetrating in the thickness direction of the first side wall are positioned above or below the support projections in the height direction of the first side wall. and
In the folded state,
The pair of first side wall portions overlap vertically,
The first side wall portion arranged on the lower side of the pair of first side wall portions is placed above the bottom wall forming portion so that the outer surface faces downward,
The first side wall portion arranged on the upper side of the pair of first side wall portions is placed above the bottom wall forming portion so that the outer surface faces upward,
the support protrusion of the first side wall portion arranged on the lower side is inserted into the support accommodating portion of the first side wall portion arranged on the upper side;
A collapsible container, wherein the support protrusion of the upper side first side wall is inserted into the support receiving portion of the lower side first side wall.

手段１によれば、折畳み容器の折畳み状態においては、一対の第１側壁部が、底壁構成部から取外され、互いに内面同士が向かい合わせとされるようにして、上下に重ねられている。さらに、各第１側壁部には、第１側壁部を厚み方向に貫通する支持収容部が設けられ、第１側壁部同士を前記のように重ねた場合には、一対の第１側壁部のそれぞれに関し、支持突部の少なくとも一部が、相手側の第１側壁部の支持収容部に収容されて、相手側の第１側壁部（本体部分）の厚みに収まるように構成されている。従って、一対の第１側壁部を重ねた場合の厚みを極力小さくすることができ、ひいては、折畳み状態における折畳み容器の高さを極力低くすることができる。結果として、折畳み容器の折畳み状態における運搬・保管効率の向上等を図ることができる。 According to Means 1, when the collapsible container is folded, the pair of first side walls are detached from the bottom wall-constituting portion, and are stacked vertically so that the inner surfaces face each other. . Further, each of the first side wall portions is provided with a support accommodating portion penetrating through the first side wall portion in the thickness direction, and when the first side wall portions are overlapped as described above, the pair of first side wall portions In each case, at least a portion of the support protrusion is accommodated in the support accommodation portion of the mating first side wall portion and is configured to fit within the thickness of the mating first side wall portion (main body portion). Therefore, it is possible to minimize the thickness when the pair of first side walls are overlapped, and furthermore, it is possible to minimize the height of the folding container in the folded state. As a result, it is possible to improve the transportation and storage efficiency of the collapsible container in the folded state.

また、支持収容部は、第１側壁部の厚み方向に貫通して設けられることで、第１側壁部同士を前記のように重ねた場合に、一対の支持突部の間に、相手側の第１側壁部のうち側部に支持収容部が形成された範囲を挿入させることができる（一対の第１側壁部の支持突部同士を極力近付けることができる）。従って、折畳み状態の折畳み容器を平面視した場合の一対の第１側壁部の面積を極力小さく構成する（底壁構成部から外方にはみ出さないように、底壁構成部の大きさに合わせる）こともでき、折畳み容器の折畳み状態における運搬・保管効率の向上、或いは、利便性の向上等を図ることができる。 Further, the support housing portion is provided so as to penetrate the first side wall portion in the thickness direction, so that when the first side wall portions are overlapped as described above, there is a gap between the pair of support protrusions. It is possible to insert the range in which the support accommodating portion is formed in the side portion of the first side wall portion (the support protrusions of the pair of first side wall portions can be brought as close as possible). Therefore, when the folding container in the folded state is viewed from above, the area of the pair of first side walls is made as small as possible. ), it is possible to improve the transportation and storage efficiency of the collapsible container in the folded state, or to improve the convenience.

手段２．前記支持収容部は、前記第１側壁部の高さ方向における前記支持突部の下方であって、前記第１側壁部の側辺部の下端部を含む位置に設けられていることを特徴とする手段１に記載の折畳み容器。 Means 2. The support housing portion is provided below the support protrusion in the height direction of the first side wall portion and at a position including the lower end portion of the side portion of the first side wall portion. The collapsible container according to the means 1 to do.

手段２によれば、第１側壁部の側辺部の上端部付近において支持収容部が形成されることを回避し、第１側壁部の側辺部の上端部付近に支持突部を設けることができる。従って、折畳み容器の組立状態において、第１側壁部の上部と、第２側壁部の上部との間の位置ずれ等をより確実に防止することができる。結果として、組立状態の折畳み容器を上下に積み重ねた状態（段積み状態）の安定化等を図ることができる。 According to the means 2, it is possible to avoid the formation of the support accommodating portion in the vicinity of the upper end portion of the side portion of the first side wall portion, and to provide the support protrusion in the vicinity of the upper end portion of the side portion of the first side wall portion. can be done. Therefore, in the assembled state of the folding container, it is possible to more reliably prevent positional deviation between the upper portion of the first side wall portion and the upper portion of the second side wall portion. As a result, it is possible to stabilize the state in which the folded containers in the assembled state are vertically stacked (stacked state).

手段３．前記底壁構成部は、当該底壁構成部の側辺部に沿って上方に突出し、前記起立姿勢にある前記第１側壁部と連結される第１土台部と、
前記第１土台部の内面の両側部から内方に突出する補助凸部とを備え、
前記折畳み状態において、一対の前記第１側壁部が、一対の前記第１土台部の間に設置されるとともに、前記第１側壁部のそれぞれが、前記第１土台部、及び、前記補助凸部と当接、又は、近接していることを特徴とする手段１又は２に記載の折畳み容器。 Means 3. the bottom wall forming portion protrudes upward along a side portion of the bottom wall forming portion and is connected to the first side wall portion in the standing posture;
and an auxiliary convex portion projecting inward from both sides of the inner surface of the first base portion,
In the folded state, the pair of first side wall portions are installed between the pair of first base portions, and each of the first side wall portions includes the first base portion and the auxiliary convex portion. 3. The collapsible container according to means 1 or 2, characterized in that it is in contact with or in close proximity to.

手段３によれば、折畳み容器の折畳み状態において、第１側壁部の脱落や、水平方向における位置ずれを防止することができる。 According to the means 3, it is possible to prevent the first side wall from coming off and the displacement in the horizontal direction when the collapsible container is folded.

尚、「前記底壁構成部は、前記一対の第１土台部の両側部間に配置され、前記底壁構成部の側辺部に沿って上方に突出し、前記起立姿勢にある前記第２側壁部と連結される第２土台部を備え、前記折畳み状態において、前記一対の第２側壁部は、前記一対の第１側壁部の下方において、前記底壁構成部の上方に前記寝かせ姿勢とされ、前記一対の第１側壁部のうち下側に配置される第１側壁部は、前記寝かせ姿勢にある前記第２側壁部の上方を向いている面、及び、前記第２土台部の上面に当接して支持され、前記一対の第１側壁部のうち上側に配置される第１側壁部は、前記寝かせ姿勢にある前記第２側壁部の上方を向いている面、及び、前記第２土台部の上面に当接して支持されること」としてもよい。当該構成を採用することにより、折畳み容器の折畳み状態において第１側壁部をより安定して支持することができる。 The bottom wall-constituting portion is arranged between both side portions of the pair of first base portions, protrudes upward along the side portions of the bottom wall-constituting portion, and the second side wall in the upright posture. and a second base portion connected to the base portion, and in the folded state, the pair of second side wall portions are laid down above the bottom wall forming portion below the pair of first side wall portions. , the first side wall portion arranged on the lower side of the pair of first side wall portions is provided on the surface facing upward of the second side wall portion in the lying posture and on the upper surface of the second base portion. The first side wall portion, which is supported in contact with the upper side of the pair of first side wall portions, has a surface facing upward of the second side wall portion in the lying posture and the second base. be supported in contact with the upper surface of the part". By adopting this configuration, it is possible to more stably support the first side wall portion in the folded state of the foldable container.

手段４．前記一対の第１側壁部は、互いに同一形状をなしていることを特徴とする手段１乃至３のいずれかに記載の折畳み容器。 Means 4. 4. The collapsible container according to any one of means 1 to 3, wherein the pair of first side walls have the same shape.

手段４によれば、例えば、一対の第１側壁部の形状が互いに異なる場合のように、一対の第１側壁部を寝かせ姿勢とする順番や、一対の第１側壁部の取付け位置を間違える等といった事態が生じることを回避することができる。従って、折畳み容器の組立や折畳みに際しての作業性の向上等を図ることができる。さらに、折畳み容器の生産性の向上、及び、製造コストの低減等を図ることができる。 According to means 4, for example, when the shape of the pair of first side walls is different from each other, the order in which the pair of first side walls are laid down or the mounting position of the pair of first side walls is wrong. Such situations can be avoided. Therefore, it is possible to improve workability in assembling and folding the folding container. Furthermore, it is possible to improve the productivity of the folding container and reduce the manufacturing cost.

組立状態にあるボックスパレットの斜視図である。1 is a perspective view of a box pallet in an assembled state; FIG. 折畳み状態にあるボックスパレットの斜視図である。1 is a perspective view of a box pallet in a folded state; FIG. 組立状態と、折畳み状態との間を状態変化させる過程のボックスパレットを示す分解斜視図である。FIG. 4 is an exploded perspective view showing the box pallet in the process of changing its state between an assembled state and a folded state; 折畳み状態にあるボックスパレットの一対の第１側壁部を上方に離間させた状態を示す分解斜視図である。FIG. 4 is an exploded perspective view showing a state in which a pair of first side wall portions of the box pallet in a folded state are separated upward. 第１側壁部の内面側を示す斜視図である。It is a perspective view which shows the inner surface side of a 1st side wall part. 第１側壁部の外面側を示す斜視図である。It is a perspective view which shows the outer surface side of a 1st side wall part. 第２側壁部の外面側を示す斜視図である。It is a perspective view which shows the outer surface side of a 2nd side wall part. 第２側壁部の内面側を示す斜視図である。It is a perspective view which shows the inner surface side of a 2nd side wall part. 一対の第１側壁部を寝かせ姿勢として重ね合せた状態を示す斜視図である。It is a perspective view which shows the state which overlap|superposed the pair of 1st side wall parts in the lying attitude|position. 一対の第１側壁部を寝かせ姿勢とした状態を示す斜視図である。It is a perspective view which shows the state which made a pair of 1st side wall part the lying attitude|position. 折畳み状態にあるボックスパレットを示す一部断面を含む斜視図である。FIG. 4 is a perspective view including a partial cross section showing the box pallet in a folded state; 折畳み状態にあるボックスパレットを示す一部断面を含む斜視図である。FIG. 4 is a perspective view including a partial cross section showing the box pallet in a folded state; 折畳み状態にあるボックスパレット（図１１のボックスパレットに対し、一対の第２側壁部のうち上側に寝かせ姿勢とされている第２側壁部と、一対の第１側壁部のうち下側に寝かせ姿勢とされている第１側壁部との相対位置が異なる）を示す一部断面を含む斜視図である。A box pallet in a folded state (with respect to the box pallet in FIG. 11, the second side wall of the pair of second side walls is laid down on the upper side, and the side wall of the pair of first side walls is laid down on the lower side). 1 is a perspective view including a partial cross section showing a different position relative to the first side wall portion, which is assumed to be the same. 別の実施形態におけるボックスパレットの運搬・保管方法を示す斜視図である。It is a perspective view which shows the transportation and storage method of the box pallet in another embodiment.

以下に、一実施形態について図面を参照して説明する。図１～図３に示すように、折畳み容器としてのボックスパレット１は、平面視略矩形状（略正方形状）の底壁部３と、底壁部３の相対する一対の側辺部に沿って底壁部３からそれぞれ上方に突出する第１土台部４と、前記一対の第１土台部４の両側部間に配置され、底壁部３から上方に突出する第２土台部５とを具備する底壁構成部２を備えている。本実施形態の底壁部３は、パレット形状をなしており、複数の支柱部６と、支柱部６の上端部間を連結する上デッキ部７とを備え、支柱部６同士の間には、ハンドリフトやフォークリフトのフォークを差込み可能なフォーク差込み部８が形成されている。 An embodiment will be described below with reference to the drawings. As shown in FIGS. 1 to 3, a box pallet 1 as a folding container includes a bottom wall portion 3 having a substantially rectangular shape (substantially square shape) in a plan view, and along a pair of opposing side portions of the bottom wall portion 3. A first base portion 4 protruding upward from the bottom wall portion 3, and a second base portion 5 disposed between both sides of the pair of first base portions 4 and protruding upward from the bottom wall portion 3. The bottom wall forming part 2 is provided. The bottom wall portion 3 of the present embodiment has a pallet shape, and includes a plurality of strut portions 6 and an upper deck portion 7 that connects the upper end portions of the strut portions 6. Between the strut portions 6, A fork insertion portion 8 into which a fork of a handlift or forklift can be inserted is formed.

また、ボックスパレット１は、各第１土台部４に対してそれぞれ着脱自在に設けられた第１側壁部１１と、各第２土台部５に対してそれぞれ回動可能に設けられた第２側壁部２１とを備えている。第１側壁部１１、及び、第２側壁部２１は、それぞれ第１土台部４、及び、第２土台部５の上方に立設される起立姿勢と、底壁部３の上方に寝かされる寝かせ姿勢との間を姿勢変位可能に構成されている。さらに、第１土台部４の底壁部３からの突出長は、第２土台部５の底壁部３からの突出長よりも長くなっている。加えて、第１側壁部１１の横幅は、第１土台部４の長手方向における長さ（第１土台部４と対応する底壁構成部２の幅）とほぼ同じに構成され、第２側壁部２１の横幅は、一対の第１土台部４間の距離とほぼ同じに構成されている。 In addition, the box pallet 1 includes first side walls 11 detachably attached to the first bases 4, and second side walls rotatably provided to the second bases 5. a portion 21; The first side wall portion 11 and the second side wall portion 21 have a standing posture in which they are erected above the first base portion 4 and the second base portion 5, respectively, and a lying posture in which they are laid down above the bottom wall portion 3. The posture is configured to be displaceable between the postures. Furthermore, the projection length of the first base portion 4 from the bottom wall portion 3 is longer than the projection length of the second base portion 5 from the bottom wall portion 3 . In addition, the width of the first side wall portion 11 is configured to be substantially the same as the length in the longitudinal direction of the first base portion 4 (the width of the bottom wall forming portion 2 corresponding to the first base portion 4). The width of the portion 21 is configured to be approximately the same as the distance between the pair of first base portions 4 .

このため、本実施形態では、全ての第１側壁部１１、及び、第２側壁部２１が起立姿勢とされた組立状態（図１参照）にあるボックスパレット１を、全ての第１側壁部１１、及び、第２側壁部２１が寝かせ姿勢とされた折畳み状態（図２参照）とする場合には、図３に示すように、一対の第２側壁部２１を先に寝かせ姿勢としてから、第１側壁部１１を寝かせ姿勢とするようになっている。尚、詳しくは後述するが、本実施形態では、第１側壁部１１を、起立姿勢から寝かせ姿勢へと姿勢変化させる場合には、第１側壁部１１を底壁構成部２から一旦取り外し、第１側壁部１１の姿勢等を変更して、底壁構成部２（既に寝かせ姿勢とされている第２側壁部２１）の上方に載置するよう構成されている。 For this reason, in the present embodiment, the box pallet 1 in the assembled state (see FIG. 1) in which all the first side walls 11 and the second side walls 21 are in the upright posture is , and when the folded state (see FIG. 2) in which the second side wall portions 21 are laid down, as shown in FIG. 1 side wall portion 11 is laid down. Although details will be described later, in the present embodiment, when the posture of the first side wall portion 11 is changed from the standing posture to the lying posture, the first side wall portion 11 is once removed from the bottom wall forming portion 2, and the first side wall portion 11 is 1 side wall portion 11 is configured to be placed above the bottom wall forming portion 2 (the second side wall portion 21 already laid down) by changing the posture or the like.

また、ボックスパレット１を折畳み状態から組立状態とする場合には、一対の第１側壁部１１を起立姿勢とすることで、第２側壁部２１を起立姿勢とすることが可能となっている。本実施形態では、一対の第１側壁部１１は、互いに同一形状をなし、一対の第２側壁部２１は、互いに同一形状をなしている。尚、本実施形態では、底壁構成部２、第１側壁部１１、及び、第２側壁部２１は、それぞれポリプロピレンにより構成されている。 Further, when the box pallet 1 is changed from the folded state to the assembled state, the pair of first side wall portions 11 are set to the standing posture, thereby allowing the second side wall portion 21 to be set to the standing posture. In this embodiment, the pair of first side wall portions 11 have the same shape, and the pair of second side wall portions 21 have the same shape. In this embodiment, the bottom wall forming portion 2, the first side wall portion 11, and the second side wall portion 21 are each made of polypropylene.

図５、図６等に示すように、各第１側壁部１１は、正面視略矩形状の第１ベース部１２と、第１ベース部１２の下辺部から下方に突出する第１挿入部１３と、第１ベース部１２の内面の両側辺部から突出する支持突部としての係止壁１４とを備えている。係止壁１４は、第１ベース部１２の側辺部から内方に突出し、第１側壁部１１の高さ方向に延在する略矩形板状の係止板部１５と、係止板部１５のうち第１側壁部１１の横幅方向中央部側の面に連結された係止突部１６、及び、ロック係止部１７とを備えている。係止突部１６は、第１ベース部１２から内方（係止壁１４の突出方向先端側）に突出する第１片部と、第１辺部の先端部から上方に突出する第２片部とを備えて略Ｌ字状をなしている。ロック係止部１７は、第１ベース部１２から内方（係止壁１４の突出方向先端側）に突出して、当該突出方向先方側に開口する略四角筒状をなしている。本実施形態では、係止壁１４の第１ベース部１２からの突出長は、第１ベース部１２の厚みと同じとなっている。 As shown in FIGS. 5, 6, etc., each first side wall portion 11 includes a first base portion 12 having a substantially rectangular shape when viewed from the front, and a first insertion portion 13 projecting downward from the lower side portion of the first base portion 12 . and locking walls 14 as support protrusions projecting from both side portions of the inner surface of the first base portion 12 . The locking wall 14 includes a substantially rectangular plate-shaped locking plate portion 15 protruding inward from the side portion of the first base portion 12 and extending in the height direction of the first side wall portion 11, and a locking plate portion. 15 , a locking protrusion 16 connected to the surface of the first side wall portion 11 on the side of the lateral width direction central portion, and a lock locking portion 17 . The locking protrusion 16 includes a first piece projecting inward (toward the distal end of the locking wall 14 in the projecting direction) from the first base portion 12 and a second piece projecting upward from the distal end of the first side portion. It has a substantially L shape with a part. The lock engaging portion 17 protrudes inward from the first base portion 12 (toward the distal end in the projecting direction of the engaging wall 14) and has a substantially square tubular shape that opens forward in the projecting direction. In this embodiment, the projection length of the locking wall 14 from the first base portion 12 is the same as the thickness of the first base portion 12 .

また、本実施形態の係止板部１５は、第１ベース部１２の上端部から、第１ベース部１２の下端部付近にかけて延在するよう構成されている。さらに、係止突部１６は、各係止板部１５において、上下に互いに離間するようにして４箇所に設けられ、上から１番目の係止突部１６は、係止板部１５の上端部に設けられている。また、上から１番目の係止突部１６と、上から２番目の係止突部１６との間に、ロック係止部１７が設けられるようになっている。加えて、係止板部１５の上辺部から第１側壁部１１の横幅方向中央部側に突出する係止上辺凸部１８が設けられている。本実施形態では、係止上辺凸部１８と、上から一番目の係止突部１６とが一体的に構成されている上、係止上辺凸部１８の上面が第１側壁部１１（第１ベース部１２）の上面と面一となっている。 Further, the locking plate portion 15 of this embodiment is configured to extend from the upper end portion of the first base portion 12 to near the lower end portion of the first base portion 12 . Further, the locking projections 16 are provided at four locations on each locking plate portion 15 so as to be spaced apart from each other in the vertical direction. provided in the department. A lock engaging portion 17 is provided between the first engaging projection 16 from the top and the second engaging projection 16 from the top. In addition, a locking upper side projection 18 is provided that protrudes from the upper side of the locking plate 15 toward the central side in the width direction of the first side wall 11 . In this embodiment, the locking upper side protrusion 18 and the first locking protrusion 16 from the top are integrally formed, and the upper surface of the locking upper side protrusion 18 is the first side wall portion 11 (the first side wall portion 11). 1 base portion 12) is flush with the upper surface of the base portion 12).

また、本実施形態では、各第１側壁部１１の第１ベース部１２の下辺部において、互いに所定間隔を隔てて３箇所に第１挿入用凹部１９が設けられており、当該第１挿入用凹部１９の横幅方向中央部において前記第１挿入部１３が設けられている。第１挿入部１３は、その大部分が第１挿入用凹部１９に収容され、下端部を含む部位が第１挿入用凹部１９（第１ベース部１２の下辺部）よりも下方に突出している。さらに、各第１挿入部１３は、当該第１挿入部１３の側面の下端部から側方に突出する挿入突部２０を備えている。各第１挿入部１３の外面は、挿入突部２０の外面も含め、第１側壁部１１（第１ベース部１２）の外面よりも内側に位置している。一方、第１挿入部１３の内面は、第１側壁部１１の内面と面一とされ、挿入突部２０の内面は、第１側壁部１１の内面よりも外側に位置している。 Further, in the present embodiment, three first insertion recesses 19 are provided at predetermined intervals on the lower side of the first base portion 12 of each first side wall portion 11 . The first insertion portion 13 is provided at the central portion of the recess 19 in the lateral width direction. Most of the first insertion portion 13 is accommodated in the first insertion recess 19, and a portion including the lower end protrudes downward from the first insertion recess 19 (lower side portion of the first base portion 12). . Further, each first insertion portion 13 has an insertion protrusion 20 that protrudes laterally from the lower end of the side surface of the first insertion portion 13 . The outer surface of each first insertion portion 13 , including the outer surface of the insertion protrusion 20 , is located inside the outer surface of the first side wall portion 11 (first base portion 12 ). On the other hand, the inner surface of the first insertion portion 13 is flush with the inner surface of the first side wall portion 11 , and the inner surface of the insertion protrusion 20 is located outside the inner surface of the first side wall portion 11 .

図７、図８等に示すように、各第２側壁部２１は、正面視略矩形状の第２ベース部２２と、第２ベース部２２の下辺部から下方に突出する第２挿入部２３とを備えている。第２挿入部２３は、第２側壁部２１の下辺部において、互いに所定間隔を隔てて３箇所に設けられている。第２挿入部２３の内面は、第２側壁部２１（第２ベース部２２）の内面と面一であり、第２挿入部２３の外面は、第２側壁部２１の外面よりも内側に位置している。 As shown in FIGS. 7, 8, etc., each second side wall portion 21 includes a second base portion 22 having a substantially rectangular shape in a front view and a second insertion portion 23 projecting downward from the lower side portion of the second base portion 22. and The second insertion portions 23 are provided at three locations on the lower side portion of the second side wall portion 21 at predetermined intervals. The inner surface of the second insertion portion 23 is flush with the inner surface of the second side wall portion 21 (the second base portion 22), and the outer surface of the second insertion portion 23 is located inside the outer surface of the second side wall portion 21. is doing.

また、第２ベース部２２の外面側の両側部には、ボックスパレット１の組立状態において、第１側壁部１１の係止壁１４と当接して支持される被係止構成部２４が設けられている。被係止構成部２４は、第２ベース部２２の外面側の肉厚が省略される格好で薄肉化された被係止板部２５と、被係止板部２５の外面から突出する被係止突部２６とを備えている。尚、被係止突部２６は、第２側壁部２１の横幅方向における側方に延びる第１片部と、第１辺部の側端部から上方に延びる第２片部とを備えて略Ｌ字状をなしている。 In addition, on both sides of the outer surface of the second base portion 22, locked components 24 are provided that are supported in contact with the locking walls 14 of the first side wall portions 11 when the box pallet 1 is assembled. ing. The engaged component 24 includes an engaged plate portion 25 that is thinned so that the thickness of the outer surface side of the second base portion 22 is omitted, and an engaged plate portion 25 that protrudes from the outer surface of the engaged plate portion 25 . and a stop protrusion 26 . The locked protrusion 26 includes a first piece extending laterally in the width direction of the second side wall portion 21 and a second piece extending upward from the side end of the first side portion. It is L-shaped.

さらに、図７に示すように、各第２側壁部２１の外面側の上部の両側部近傍部位には、ボックスパレット１の組立状態において、第２側壁部２１と、第１側壁部１１との間を連結するためのロック部材２７が装着されている。各ロック部材２７は、第２側壁部２１の外面側から操作可能、かつ、左右にスライド変位可能に構成され、ロック部材２７が側方に変位させられることで、ロック部材２７が被係止構成部２４に突出するようになっている。 Further, as shown in FIG. 7 , in the assembled state of the box pallet 1 , the second side wall 21 and the first side wall 11 are provided near both sides of the upper portion of the outer surface side of each of the second side walls 21 . A lock member 27 is mounted for connecting between them. Each lock member 27 is configured to be operable from the outer surface side of the second side wall portion 21 and slidable to the left and right. It protrudes to the part 24. As shown in FIG.

そして、図１に示すように、第１側壁部１１、及び、第２側壁部２１を起立姿勢とすることで、第２側壁部２１の被係止構成部２４の外面（図７参照）が、第１側壁部１１の係止壁１４（図５参照）に略当接（当接、又は、近接）し、第１側壁部１１の係止突部１６と、第２側壁部２１の被係止突部２６とが係止状態とされるとともに、ロック部材２７を側方にスライドさせることで、ロック部材２７がロック係止部１７に挿入される（係止状態とされる）ようになっている。これにより、第２側壁部２１の内方への変位が防止され、ボックスパレット１の組立状態が保持されるようになっている。尚、被係止構成部２４の被係止板部２５は、係止壁１４の係止上辺凸部１８との干渉を避けるべく、第２ベース部２２の上辺部よりも一段低く構成され、ボックスパレット１の組立状態において、被係止板部２５の上辺部が、係止上辺凸部１８の下面と略当接するようになっている。 Then, as shown in FIG. 1, by setting the first side wall portion 11 and the second side wall portion 21 in the upright posture, the outer surface of the locked component portion 24 of the second side wall portion 21 (see FIG. 7) is , substantially abuts (contacts or approaches) the locking wall 14 (see FIG. 5) of the first side wall 11, and the locking projection 16 of the first side wall 11 and the cover of the second side wall 21 By sliding the lock member 27 sideways while the locking protrusion 26 is locked, the lock member 27 is inserted into the lock locking portion 17 (locked). It's becoming As a result, the inward displacement of the second side wall portion 21 is prevented, and the assembled state of the box pallet 1 is maintained. In addition, the locked plate portion 25 of the locked structure portion 24 is configured to be one step lower than the upper side portion of the second base portion 22 in order to avoid interference with the locking upper side convex portion 18 of the locking wall 14. In the assembled state of the box pallet 1 , the upper side portion of the locked plate portion 25 is substantially in contact with the lower surface of the locking upper side convex portion 18 .

また、第１側壁部１１の上面側、及び、第２側壁部２１の上面側には、第１ベース部１２の上面、及び、第２ベース部２２の上面から上方に突出する段積み用凸部２８が設けられている。これに対し、底壁構成部２の下面側にはボックスパレット１を組立状態として上下に重ねた（段積みした）場合に、下側のボックスパレット１の段積み用凸部２８が挿入される段積み用凹部２９が設けられている。 Moreover, on the upper surface side of the first side wall portion 11 and the upper surface side of the second side wall portion 21, stacking projections protruding upward from the upper surface of the first base portion 12 and the upper surface of the second base portion 22 are provided. A section 28 is provided. On the other hand, when the box pallets 1 are vertically stacked (stacked) in an assembled state, the stacking protrusions 28 of the box pallet 1 on the lower side are inserted into the lower surface side of the bottom wall forming portion 2 . A stacking recess 29 is provided.

図２～図４等に示すように、底壁構成部２の第１土台部４の上面側には、上方に突出する第１土台突部３１が、第１側壁部１１の第１ベース部１２の下辺部に設けられた第１挿入用凹部１９に対応するようにして３箇所に設けられている。各第１土台突部３１には、横幅方向中央部において上方に開口し、第１側壁部１１の第１挿入部１３を挿入可能とする第１被挿入部３２が設けられている。図１、図３等に示すように、本実施形態では、第１側壁部１１を起立姿勢として上方から第１挿入部１３を第１被挿入部３２に挿入することで、第１土台突部３１が、第１挿入用凹部１９に挿入されるようになっている。尚、第１被挿入部３２のうち、挿入突部２０を除く第１挿入部１３の内面に対応する部位は、内方にも開口している。 As shown in FIGS. 2 to 4 and the like, on the upper surface side of the first base portion 4 of the bottom wall-constituting portion 2, a first base protrusion 31 protruding upward is attached to the first base portion of the first side wall portion 11. 12 are provided at three locations so as to correspond to the first insertion recesses 19 provided in the lower side portion of the reference numeral 12 . Each first base protrusion 31 is provided with a first inserted portion 32 that opens upward at the center in the width direction and allows the first insertion portion 13 of the first side wall portion 11 to be inserted thereinto. As shown in FIGS. 1, 3, etc., in the present embodiment, the first base protrusion is inserted into the first inserted portion 32 from above with the first side wall portion 11 in an upright posture. 31 is adapted to be inserted into the first insertion recess 19 . A portion of the first inserted portion 32 corresponding to the inner surface of the first insertion portion 13 excluding the insertion protrusion 20 is also opened inward.

また、図２に示すように、ボックスパレット１の折畳み状態においては、第１土台突部３１が、寝かせ姿勢とされた第１側壁部１１よりも上方に突出するようになっている。本実施形態では、折畳み状態にあるボックスパレット１同士を段積みする場合に、下側のボックスパレット１の第１土台突部３１が、上側のボックスパレット１の底壁構成部２の段積み用凹部２９に挿入されるようになっている。 Further, as shown in FIG. 2, in the folded state of the box pallet 1, the first base protrusion 31 protrudes above the first side wall 11 in the lying posture. In this embodiment, when stacking the box pallets 1 in the folded state, the first base protrusion 31 of the lower box pallet 1 is used for stacking the bottom wall forming part 2 of the upper box pallet 1. It is adapted to be inserted into the recess 29 .

図３等に示すように、第２土台部５には、上方に開口し、第２側壁部２１の第２挿入部２３を挿入可能とする第２被挿入部３３が設けられている。第２被挿入部３３は、第２側壁部２１に設けられた３つの第２挿入部２３に対応して３箇所に設けられている。また、第２被挿入部３３は内方にも開口しており、第２挿入部２３を第２被挿入部３３に挿入した状態のまま、第２側壁部２１の回動変位が許容されるようになっている。尚、第２挿入部２３には、側面下部から側方に突出する軸部が設けられ、第２被挿入部３３には、軸部を軸支する軸受部が設けられることとしてもよい。 As shown in FIG. 3 and the like, the second base portion 5 is provided with a second inserted portion 33 that is open upward and into which the second insertion portion 23 of the second side wall portion 21 can be inserted. The second inserted portions 33 are provided at three locations corresponding to the three second insertion portions 23 provided on the second side wall portion 21 . In addition, the second inserted portion 33 is also opened inward, and the rotational displacement of the second side wall portion 21 is allowed while the second inserted portion 23 is inserted into the second inserted portion 33. It's like The second insertion portion 23 may be provided with a shaft portion that protrudes sideways from the lower portion of the side surface, and the second inserted portion 33 may be provided with a bearing portion that supports the shaft portion.

加えて、底壁構成部１は、第１土台部４の両端部から第２土台部５の上方に突出し、第２土台部５の上面側と連結された補助凸部３４を備えている。補助凸部３４の上面は、第１土台部４の上面と面一とされている。さらに、本実施形態の補助凸部３４の厚みは、第２土台部５の厚みよりも若干小さく構成されており、補助凸部３４の外面は、第２土台部５の外面と面一であるのに対し、補助凸部３４の内面は、第２土台部５の内面よりも外方に位置している（補助凸部３４よりも内方において第２土台部５の上面が残存するようになっている）。加えて、補助凸部３４の突出方向先端側の下部には、補助切欠き部３５が設けられている。 In addition, the bottom wall-constituting portion 1 includes auxiliary protrusions 34 that protrude upward from the second base portion 5 from both ends of the first base portion 4 and are connected to the upper surface side of the second base portion 5 . The upper surface of the auxiliary convex portion 34 is flush with the upper surface of the first base portion 4 . Furthermore, the thickness of the auxiliary convex portion 34 of the present embodiment is configured to be slightly smaller than the thickness of the second base portion 5, and the outer surface of the auxiliary convex portion 34 is flush with the outer surface of the second base portion 5. On the other hand, the inner surface of the auxiliary convex portion 34 is located outside the inner surface of the second base portion 5 (so that the upper surface of the second base portion 5 remains inside the auxiliary convex portion 34). is). In addition, an auxiliary cutout portion 35 is provided at the lower portion of the auxiliary convex portion 34 on the leading end side in the projecting direction.

これに対し、図１、図７に示すように、第２側壁部２１の外面側には、補助凸部３４に対応した形状の補助許容凹部３６が設けられ、第２側壁部２１が起立姿勢とされた場合に、底壁構成部２の補助凸部３４が補助許容凹部３６に収容されるようになっている。これにより、第２側壁部２１の側部の下部と、補助凸部３４とが、上下方向において係止状態とされる。 On the other hand, as shown in FIGS. 1 and 7, on the outer surface side of the second side wall portion 21, an auxiliary allowable concave portion 36 having a shape corresponding to the auxiliary convex portion 34 is provided so that the second side wall portion 21 is in the standing posture. , the auxiliary convex portion 34 of the bottom wall forming portion 2 is accommodated in the auxiliary allowable concave portion 36 . As a result, the lower portion of the side portion of the second side wall portion 21 and the auxiliary convex portion 34 are locked in the vertical direction.

また、図３等に示すように、本実施形態では、一対の第２土台部５間の距離は、第２側壁部２１（第２ベース部２２）の上下幅（高さ）の２倍の長さよりも短くなっている。さらに、図１２に示すように、第２土台部５の底壁部３からの突出長は、第２側壁部２１（第２ベース部２２）の厚みの２倍の長さとほぼ同じとされている上、第２挿入部２３の一部を第２被挿入部３３に挿入した状態のまま、上下に第２ベース部２２の厚みよりも長い距離をスライド可能に構成されている。このため、一対の第２側壁部２１を寝かせ姿勢とした状態（ボックスパレット１の折畳み状態）では、一対の第２側壁部２１同士が上下に重なるように構成されている。 Further, as shown in FIG. 3 and the like, in the present embodiment, the distance between the pair of second base portions 5 is twice the vertical width (height) of the second side wall portion 21 (second base portion 22). shorter than it is long. Furthermore, as shown in FIG. 12, the protruding length of the second base portion 5 from the bottom wall portion 3 is approximately equal to twice the thickness of the second side wall portion 21 (second base portion 22). In addition, while a part of the second insertion portion 23 is inserted into the second inserted portion 33 , it is configured to be slidable vertically over a distance longer than the thickness of the second base portion 22 . Therefore, in a state in which the pair of second side wall portions 21 are laid down (a state in which the box pallet 1 is folded), the pair of second side wall portions 21 are configured to vertically overlap each other.

また、図３等に示すように、一対の第１土台部４間の距離は、第１側壁部１１（第１ベース部１２）の上下幅（高さ）の２倍の長さよりも短くなっている。さらに、図２、図１２等に示すように、第１土台部４の底壁部３からの突出長は、第２側壁部２１（第２ベース部２２）の厚みの２倍の長さと、第１側壁部１１（第１ベース部１２）の厚みの２倍の長さとを足した長さとほぼ同じとされている。但し、第１被挿入部３２は、第１挿入部１３の一部を第１挿入部に挿入した状態のまま、上下に第１ベース部１２の厚みよりも長い距離を変位させることは不可能に構成されている。加えて、本実施形態では、一対の第１土台部４間の距離は、第１側壁部１１の横幅とほぼ同じ（第１側壁部１１の横幅よりも若干短い）となっている。 Further, as shown in FIG. 3 and the like, the distance between the pair of first base portions 4 is shorter than twice the vertical width (height) of the first side wall portion 11 (first base portion 12). ing. Furthermore, as shown in FIGS. 2, 12, etc., the projection length of the first base portion 4 from the bottom wall portion 3 is twice the thickness of the second side wall portion 21 (second base portion 22), The length is approximately the same as the length obtained by adding twice the thickness of the first side wall portion 11 (first base portion 12). However, the first inserted portion 32 cannot be vertically displaced by a distance longer than the thickness of the first base portion 12 while a part of the first inserted portion 13 is inserted into the first inserted portion. is configured to In addition, in this embodiment, the distance between the pair of first base portions 4 is substantially the same as the width of the first side wall portion 11 (slightly shorter than the width of the first side wall portion 11).

さて、上記のように、本実施形態の第１側壁部１１は、底壁構成部２に対して着脱可能に構成されている。また、図５等に示すように、第１側壁部１１の両側部の下端部を含む位置には、第１側壁部１１の厚み方向に貫通する支持収容部としての係止収容部４１が設けられている。本実施形態の係止収容部４１は、係止壁１４の下方の範囲全体が切欠かれるようにして設けられている。すなわち、係止収容部４１は、係止壁１４の下端部と連続し、下方や側方にも開口するとともに、第１側壁部１１の横幅方向において、係止突部１６やロック係止部１７を含む係止壁１４の厚みとほぼ同じ幅（係止収容部４１の方が若干大きい）を有している。 Now, as described above, the first side wall portion 11 of the present embodiment is configured to be detachable from the bottom wall forming portion 2 . Further, as shown in FIG. 5 and the like, at positions including the lower end portions of both sides of the first side wall portion 11, locking housing portions 41 as support housing portions penetrating in the thickness direction of the first side wall portion 11 are provided. It is The locking accommodating portion 41 of the present embodiment is provided so that the entire lower range of the locking wall 14 is notched. That is, the locking housing portion 41 is continuous with the lower end portion of the locking wall 14 , opens downward and laterally, and extends in the lateral width direction of the first side wall portion 11 such that the locking protrusion 16 and the lock locking portion It has a width that is substantially the same as the thickness of the locking wall 14 including the locking wall 17 (the locking accommodating portion 41 is slightly larger).

そして、ボックスパレット１を折畳み状態とする場合には、図３に示すように、先に一対の第２側壁部２１を寝かせ姿勢とした後、一方の第１側壁部１１を底壁構成部２から取外し、その外面が下向きとされ、かつ、第１側壁部１１の高さ方向が第１土台部４の長手方向に沿って延在する向きで、底壁構成部２の上方（既に寝かせ姿勢とされている第２側壁部２１の上方）に載置する（図２、図４参照）。続いて、図２に示すように、他方の第１側壁部１１を底壁構成部２から取外し、その外面が上向きとされ、かつ、第１側壁部１１の高さ方向が第１土台部４の長手方向に沿って延在する向きで、底壁構成部２の上方（既に寝かせ姿勢とされている第１側壁部１１及び第２側壁部２１の上方）に載置する。 When the box pallet 1 is to be folded, as shown in FIG. , with the outer surface facing downward, and the height direction of the first side wall portion 11 extending along the longitudinal direction of the first base portion 4, above the bottom wall constituting portion 2 (already lying posture). above the second side wall portion 21 (see FIGS. 2 and 4). Subsequently, as shown in FIG. 2, the other first side wall portion 11 is removed from the bottom wall forming portion 2 so that its outer surface faces upward and the height direction of the first side wall portion 11 is aligned with the first base portion 4 . is placed above the bottom wall forming portion 2 (above the first side wall portion 11 and the second side wall portion 21 already laid down) in a direction extending along the longitudinal direction of .

このとき、図４、図９～図１１に示すように、一対の第１側壁部１１のうち、下側に配置される第１側壁部１１の係止壁１４が、上側に配置される第１側壁部１１の係止収容部４１に挿入され、かつ、上側に配置される第１側壁部１１の係止壁１４が、下側に配置される第１側壁部１１の係止収容部４１に挿入されるように設置する。これにより、第１側壁部１１のうち両側部に係止収容部４１が形成されている部位が、相手側の第１側壁部１１の一対の係止壁１４の間に挿入されるようにして、上下に重ねられた一対の第１側壁部１１の第１ベース部１２同士が上下に略当接（当接、又は、近接）するとともに、第１土台部４の長手方向において、係止壁１４の下辺部が、相手側の第１側壁部１１（係止収容部４１の上縁部）と略当接するようになっている。 At this time, as shown in FIGS. 4 and 9 to 11, of the pair of first side wall portions 11, the locking wall 14 of the first side wall portion 11 arranged on the lower side The locking wall 14 of the first side wall portion 11 is inserted into the locking accommodation portion 41 of the first side wall portion 11, and the locking wall 14 of the first side wall portion 11 arranged on the upper side is inserted into the locking accommodation portion 41 of the first side wall portion 11 arranged on the lower side. installed to be inserted into the As a result, the portions of the first side wall portion 11 on which the locking accommodating portions 41 are formed on both sides are inserted between the pair of locking walls 14 of the first side wall portion 11 on the other side. , the first base portions 12 of the pair of vertically stacked first side wall portions 11 substantially abut (abut or approach) vertically, and in the longitudinal direction of the first base portion 4, the locking wall The lower side portion 14 is substantially in contact with the first side wall portion 11 (the upper edge portion of the locking housing portion 41) on the mating side.

また、上記のように、係止壁１４の第１ベース部１２からの突出長は、第１ベース部１２の厚みと同じである。このため、図９、図１１に示すように、ボックスパレット１の折畳み状態では、下側に配置される第１側壁部１１の外面（下側を向く面）と、上側に配置される第１側壁部１１の係止壁１４の先端面（下側を向く面）とが略面一となり、上側に配置される第１側壁部１１の外面（上側を向く面）と、下側に配置される第１側壁部１１の係止壁１４の先端面（上側を向く面）とが略面一となっている。 Further, as described above, the projection length of the locking wall 14 from the first base portion 12 is the same as the thickness of the first base portion 12 . Therefore, as shown in FIGS. 9 and 11, in the folded state of the box pallet 1, the outer surface (the surface facing downward) of the first side wall portion 11 arranged on the lower side and the first side wall portion 11 arranged on the upper side The tip surface (surface facing downward) of the locking wall 14 of the side wall portion 11 is substantially flush with the outer surface (surface facing upward) of the first side wall portion 11 arranged on the upper side. The tip surface (the surface facing upward) of the locking wall 14 of the first side wall portion 11 is substantially flush.

さらに、図２等に示すように、ボックスパレット１の折畳み状態においては、各第１側壁部１１の両側辺部（及び、係止壁１４の外面）が、それぞれ第１土台部４の内面と略当接し（当接、又は、近接）し、各第１側壁部１１の上辺部の両側部が、それぞれ補助凸部３４と略当接するように構成されている。尚、上下に重ねられた一対の第１側壁部１１の重なり合う面積が増える方向への変位は、係止壁１４の下辺部が、相手側の第１側壁部１１と当接することで規制されるようになっている（図９、図１０参照）。 Furthermore, as shown in FIG. 2 and the like, in the folded state of the box pallet 1, both side portions of each first side wall portion 11 (and the outer surface of the locking wall 14) are aligned with the inner surface of the first base portion 4, respectively. Both side portions of the upper side portion of each first side wall portion 11 are configured to substantially abut (abut or approach) the auxiliary convex portion 34 respectively. Displacement in the direction in which the overlapping area of the pair of first side wall portions 11 that are stacked vertically is increased is regulated by the contact of the lower side portion of the locking wall 14 with the first side wall portion 11 on the other side. (See FIGS. 9 and 10).

加えて、図２、図１１、図１２に示すように、ボックスパレット１の折畳み状態においては、一対の第１側壁部１１のうち下側に配置される第１側壁部１１は、第２側壁部２１の外面（上側を向く面）と当接するだけでなく、第２土台部５の上面とも当接し、支持されるように構成されている。さらに、上側に配置される第１側壁部１１についても、第２側壁部２１の外面、及び、第２土台部５の上面（並びに、下側に配置される第１側壁部１１の第１ベース部１２のうち上側を向いている内面）に当接し、支持されるように構成されている。 In addition, as shown in FIGS. 2, 11, and 12, in the folded state of the box pallet 1, the first side wall portion 11 arranged on the lower side of the pair of first side wall portions 11 is It is configured to contact not only the outer surface (upward facing surface) of the portion 21 but also the upper surface of the second base portion 5 so as to be supported. Further, regarding the first side wall portion 11 arranged on the upper side, the outer surface of the second side wall portion 21 and the upper surface of the second base portion 5 (and the first base of the first side wall portion 11 arranged on the lower side) It is configured to be in contact with and supported by the inner surface facing upward of the portion 12 .

より具体的には、上記のように、補助凸部３４の厚みは、第２土台部５の厚みよりも薄く、補助凸部３４よりも内方において、第２土台部５の上面が残存する上、上下に重ねられた一対の第１側壁部１１のうち第１土台部４の長手方向における長さは、第１土台部４の両端部に設けられた（第１土台部４の長手方向において対向する）一対の補助凸部３４間の距離とほぼ同じ（それよりも若干短い）となっている。このため、下側に配置される第１側壁部１１に関しては、外面の上辺部近傍部位、及び、段積み用凸部２８が、第２土台部５の上面に載置されるようになっている。また、上側に配置される第１側壁部１１に関しては、係止壁１４の突出方向先端面において、寝かせ姿勢とされている第２側壁部２１の外面と、第２土台部５の上面とに当接するようになっている。 More specifically, as described above, the thickness of the auxiliary convex portion 34 is thinner than the thickness of the second base portion 5, and the upper surface of the second base portion 5 remains inside the auxiliary convex portion 34. The length in the longitudinal direction of the first base portion 4 of the pair of first side wall portions 11 stacked vertically is the length provided at both end portions of the first base portion 4 (the length in the longitudinal direction of the first base portion 4). The distance is approximately the same as (slightly shorter than) the distance between the pair of auxiliary projections 34 facing each other at . For this reason, with respect to the first side wall portion 11 arranged on the lower side, the portion near the upper side portion of the outer surface and the stacking convex portion 28 are placed on the upper surface of the second base portion 5 . there is Regarding the first side wall portion 11 arranged on the upper side, the outer surface of the second side wall portion 21 in the lying posture and the upper surface of the second base portion 5 are attached to the front end surface of the locking wall 14 in the projecting direction. It is designed to abut.

尚、図１１に示すように、ボックスパレット１の折畳み状態において、一対の第１側壁部１１のうち下側に配置される第１側壁部１１が、一対の第２側壁部２１のうち上側に配置された第２側壁部２１が連結されている第２土台部５とは異なる第２土台部５に載置される場合だけでなく、図１３に示すように、下側に配置される第１側壁部１１が、上側に配置される第２側壁部２１が連結されている第２土台部５に載置される場合においても、上側に配置される第１側壁部１１は、上側に配置される第２側壁部２１に対し（接触面積は減るものの）当接して支持されるようになっている。 Incidentally, as shown in FIG. 11, in the folded state of the box pallet 1, the first side wall portion 11 arranged on the lower side of the pair of first side wall portions 11 is arranged on the upper side of the pair of second side wall portions 21. Not only when the arranged second side wall portion 21 is placed on the second base portion 5 different from the second base portion 5 to which it is connected, but also when the second side wall portion 21 is placed on the lower side as shown in FIG. Even when one side wall portion 11 is placed on the second base portion 5 to which the second side wall portion 21 arranged on the upper side is connected, the first side wall portion 11 arranged on the upper side is arranged on the upper side. It is supported in contact with the second side wall portion 21 (although the contact area is reduced).

以上詳述したように、本実施形態によれば、ボックスパレット１の折畳み状態においては、一対の第１側壁部１１が、底壁構成部２から取外され、互いに内面同士が向かい合わせとされるようにして、上下に重ねられている。さらに、各第１側壁部１１には、第１側壁部１１を厚み方向に貫通する係止収容部４１が設けられ、第１側壁部１１同士を前記のように重ねた場合には、一対の第１側壁部１１のそれぞれに関し、係止壁１４が、相手側の第１側壁部１１の係止収容部４１に収容されて、相手側の第１側壁部１１（第１ベース部１２）の厚みに収まるように構成されている。従って、一対の第１側壁部１１を重ねた場合の厚みを極力小さくすることができ、ひいては、折畳み状態におけるボックスパレット１の高さを極力低くすることができる。結果として、ボックスパレット１の折畳み状態における運搬・保管効率の向上等を図ることができる。 As described in detail above, according to the present embodiment, when the box pallet 1 is folded, the pair of first side walls 11 are removed from the bottom wall forming part 2 and the inner surfaces face each other. In this way, they are stacked one on top of the other. Further, each of the first side wall portions 11 is provided with a locking accommodating portion 41 that penetrates the first side wall portion 11 in the thickness direction. For each of the first side wall portions 11, the locking wall 14 is accommodated in the locking housing portion 41 of the mating first side wall portion 11, and the mating first side wall portion 11 (first base portion 12) is It is configured to fit in the thickness. Therefore, the thickness when the pair of first side walls 11 are overlapped can be minimized, and the height of the box pallet 1 in the folded state can be minimized. As a result, it is possible to improve the transportation and storage efficiency of the box pallet 1 in the folded state.

また、係止収容部４１は、第１側壁部１１の厚み方向に貫通して設けられることで、第１側壁部１１同士を前記のように重ねた場合に、一対の係止壁１４の間に、相手側の第１側壁部１１（第１ベース部１２）のうち両側部に係止収容部４１が形成された範囲を挿入させることができる（一対の第１側壁部１１の係止壁１４同士を極力近付けることができる）。従って、折畳み状態のボックスパレット１を平面視した場合の一対の第１側壁部１１の面積を極力小さく構成する（底壁構成部２から外方にはみ出さないように、底壁構成部２の大きさに合わせる）こともでき、ボックスパレット１の折畳み状態における運搬・保管効率の向上、或いは、利便性の向上等を図ることができる。 In addition, since the locking accommodation portion 41 is provided so as to pass through the first side wall portion 11 in the thickness direction, when the first side wall portions 11 are overlapped as described above, the locking housing portion 41 is provided between the pair of locking walls 14 . In addition, it is possible to insert the range in which the locking housing portions 41 are formed on both sides of the mating first side wall portion 11 (first base portion 12) (the locking walls of the pair of first side wall portions 11). 14 can be brought as close as possible). Therefore, when the box pallet 1 in the folded state is viewed from above, the area of the pair of first side wall portions 11 is made as small as possible. The size of the box pallet 1 can be adjusted to the size of the box pallet.

さらに、係止収容部４１は、第１側壁部１１の高さ方向における係止壁１４の下方であって、第１側壁部１１の側辺部の下端部を含む位置に設けられている。このため、第１側壁部１１の側辺部の上端部付近において係止収容部４１が形成されることを回避し、第１側壁部１１の側辺部の上端部に係止壁１４を設けることができる。従って、ボックスパレット１の組立状態において、第１側壁部１１の上部と、第２側壁部２１の上部との間の位置ずれ等をより確実に防止することができる。結果として、組立状態にあるボックスパレット１の段積み状態の安定化等を図ることができる。 Further, the locking accommodation portion 41 is provided below the locking wall 14 in the height direction of the first side wall portion 11 and at a position including the lower end portion of the side portion of the first side wall portion 11 . For this reason, it is possible to avoid the formation of the locking accommodating portion 41 near the upper end of the side portion of the first side wall portion 11, and to provide the locking wall 14 at the upper end portion of the side portion of the first side wall portion 11. be able to. Therefore, in the assembled state of the box pallet 1, positional deviation or the like between the upper portion of the first side wall portion 11 and the upper portion of the second side wall portion 21 can be prevented more reliably. As a result, the stacking state of the box pallets 1 in the assembled state can be stabilized.

また、ボックスパレット１の折畳み状態において、各第１側壁部１１が、一対の第１土台部４の間に設置されるとともに、第１土台部４、及び、補助凸部３４と当接、又は、近接するように構成されている。このため、ボックスパレット１の折畳み状態において、第１側壁部１１の脱落や、水平方向における位置ずれを防止することができる。 Further, in the folded state of the box pallet 1, each first side wall portion 11 is installed between the pair of first base portions 4, and is in contact with the first base portion 4 and the auxiliary convex portion 34, or , are configured to be in close proximity. Therefore, in the folded state of the box pallet 1, it is possible to prevent the first side wall portion 11 from coming off and the displacement in the horizontal direction.

さらに、ボックスパレット１の折畳み状態において、一対の第１側壁部１１のうち下側に配置される第１側壁部１１、及び、上側に配置される第１側壁部１１のどちらについても、寝かせ姿勢にある第２側壁部２１の上方を向いている面、及び、第２土台部５の上面に当接して支持されるようになっている。このため、ボックスパレット１の折畳み状態において第１側壁部１１をより安定して支持することができる。 Furthermore, in the folded state of the box pallet 1, both the first side wall portion 11 arranged on the lower side and the first side wall portion 11 arranged on the upper side of the pair of first side wall portions 11 are in the lying posture. The upper surface of the second side wall portion 21 and the upper surface of the second base portion 5 contact and are supported. Therefore, the first side wall portion 11 can be more stably supported when the box pallet 1 is folded.

加えて、一対の第１側壁部１１は、互いに同一形状をなしている。このため、例えば、一対の第１側壁部１１の形状が互いに異なる場合のように、一対の第１側壁部１１を寝かせ姿勢とする順番や、一対の第１側壁部１１の取付け位置を間違える等といった事態が生じることを回避することができる。従って、ボックスパレット１の組立や折畳みに際しての作業性の向上等を図ることができる。さらに、ボックスパレット１の生産性の向上、及び、製造コストの低減等を図ることができる。 In addition, the pair of first side wall portions 11 have the same shape. For this reason, for example, as in the case where the pair of first side wall portions 11 have different shapes, the order in which the pair of first side wall portions 11 are laid down or the mounting positions of the pair of first side wall portions 11 are mistaken. Such situations can be avoided. Therefore, it is possible to improve the workability in assembling and folding the box pallet 1, and the like. Furthermore, it is possible to improve the productivity of the box pallet 1 and reduce the manufacturing cost.

尚、上記実施形態の記載内容に限定されず、例えば次のように実施してもよい。勿論、以下において例示しない他の応用例、変更例も当然可能である。 In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other applications and modifications not exemplified below are naturally possible.

（ａ）上記実施形態では、各第２側壁部２１が底壁構成部２に対して回動変位可能に連結されているが、例えば、第１側壁部１１のように、起立姿勢と、寝かせ姿勢との間で姿勢を変化させる場合には、第２側壁部２１を底壁構成部２から取外すように構成してもよい。 (a) In the above embodiment, each second side wall portion 21 is connected to the bottom wall forming portion 2 so as to be rotatably displaceable. The second side wall portion 21 may be configured to be removed from the bottom wall forming portion 2 when changing the posture between the postures.

（ｂ）また、上記実施形態では、ボックスパレット１の折畳み状態において、一対の第２側壁部２１を寝かせ姿勢とし、その上方に一対の第１側壁部１１を寝かせ姿勢として重ねるように構成されているが、例えば、第２側壁部２１を底壁構成部２から取外し、底壁構成部２の底壁部３に対して寝かせ姿勢とされた一対の第１側壁部１１を直接載置する（例えば、第２土台部５の上面を底壁部３の上面と面一とすれば設置可能）ように構成してもよい。この場合、底壁構成部２（第１土台部４）の高さを極力低く構成することができ、折畳み状態におけるボックスパレット１の運搬・保管効率の向上を図ることができる。尚、当該構成を採用する場合には、図１４に示すように、底壁構成部２から取外された第２側壁部２１を、組立状態にある所定のボックスパレット１にまとめて収容して運搬・保管することが考えられる。 (b) In the above-described embodiment, when the box pallet 1 is folded, the pair of second side walls 21 are laid down, and the pair of first side walls 11 are stacked on top of them in a laid down position. However, for example, the second side wall portion 21 is removed from the bottom wall forming portion 2, and the pair of first side wall portions 11 laid down on the bottom wall portion 3 of the bottom wall forming portion 2 are directly placed ( For example, if the upper surface of the second base portion 5 is made flush with the upper surface of the bottom wall portion 3, installation may be possible. In this case, the height of the bottom wall forming part 2 (first base part 4) can be made as low as possible, and the efficiency of transportation and storage of the box pallet 1 in the folded state can be improved. When adopting this configuration, as shown in FIG. 14, the second side wall portions 21 removed from the bottom wall forming portion 2 are housed collectively in a predetermined box pallet 1 in the assembled state. It can be considered to be transported and stored.

（ｃ）上記実施形態では、底壁構成部２がパレット形状をなしているが、例えば、フォーク差込み部８を有していない底壁構成部を備え、第１側壁部１１についても、第１土台部４に対して回動変位可能に連結された折畳み容器に具体化することとしてもよい。 (c) In the above embodiment, the bottom wall forming part 2 has a pallet shape. It may also be embodied as a folding container that is connected to the base portion 4 so as to be rotatably displaceable.

（ｄ）また、係止壁１４や被係止構成部２４の具体的な構成や形成位置・形成範囲等についても特に限定されるものではなく、第１側壁部１１の係止壁１４が第２側壁部２１の外面側を支持することができるように構成されていればよい。尚、係止収容部４１については、ボックスパレット１の折畳み状態において、係止壁１４と上下に重なる範囲に形成されていればよく、第１側壁部１１の高さ方向において、係止壁１４の上方位置や、上下に係止壁１４が複数設けられた場合の係止壁１４の間の位置に係止収容部４１が設けられてもよい。 (d) Further, the specific configuration, formation position, formation range, etc. of the locking wall 14 and the locked component 24 are not particularly limited, and the locking wall 14 of the first side wall portion 11 is It is only necessary to be configured so as to be able to support the outer surface side of the two side wall portions 21 . Note that the locking accommodating portion 41 may be formed in a range that vertically overlaps the locking wall 14 when the box pallet 1 is folded. or a position between the locking walls 14 when a plurality of locking walls 14 are provided above and below.

（ｅ）上記実施形態では、ボックスパレット１の折畳み状態において、一対の第１側壁部１１は、第１側壁部１１の高さ（上下幅）方向が、第１土台部４の長手方向に延在するようにして載置されるように構成されているが、高さ方向が第２土台部５の長手方向に延在するようにして載置されるように構成してもよい。但し、第１側壁部１１の高さ方向が、第１土台部４の長手方向に延在するようにして第１側壁部１１を第２側壁部２１の上方に載置することで、第１側壁部１１の両側部の上部に切欠き等を設けなくても（上端部に係止壁１４を設けても）、４つの補助凸部３４の間に、寝かせ姿勢とされた一対の第１側壁部１１を収めることができる。 (e) In the above embodiment, when the box pallet 1 is in the folded state, the pair of first side wall portions 11 extend in the longitudinal direction of the first base portion 4 in the direction of the height (vertical width) of the first side wall portions 11 . Although it is configured to be placed so as to be present, it may be configured to be placed so that the height direction extends in the longitudinal direction of the second base portion 5 . However, by placing the first side wall portion 11 above the second side wall portion 21 so that the height direction of the first side wall portion 11 extends in the longitudinal direction of the first base portion 4, the first Even if notches or the like are provided in the upper portions of both side portions of the side wall portion 11 (even if the locking walls 14 are provided in the upper end portion), a pair of first first protrusions lying in a lying posture are provided between the four auxiliary convex portions 34 . The side wall portion 11 can be accommodated.

（ｆ）上記実施形態では、ボックスパレット１はポリプロピレンにより構成されているが、ポリエチレン、ＰＥＴ、ポリアミド等その他の樹脂材料により構成されることとしてもよい。 (f) In the above embodiment, the box pallet 1 is made of polypropylene, but it may be made of other resin materials such as polyethylene, PET, and polyamide.

１…ボックスパレット、２…底壁構成部、３…底壁部、４…第１土台部、５…第２土台部、１１…第１側壁部、１４…係止壁、２１…第２側壁部、３４…補助凸部、４１…係止収容部。 DESCRIPTION OF SYMBOLS 1... Box pallet, 2... Bottom wall structure part, 3... Bottom wall part, 4... First base part, 5... Second base part, 11... First side wall part, 14... Locking wall, 21... Second side wall Part, 34... Auxiliary convex part, 41... Lock accommodating part.

Claims (4)

平面視略矩形状の底壁構成部と、
前記底壁構成部の各側辺部に対応して、前記底壁構成部の側辺部の上方に立設される起立姿勢と、前記底壁構成部の中央部側に寝かされる寝かせ姿勢との間を姿勢変化可能に設けられた側壁部とを備え、
全ての前記側壁部が前記起立姿勢とされた組立状態と、全ての前記側壁部が前記寝かせ姿勢とされた折畳み状態とに状態変化可能な折畳み容器において、
前記側壁部は、前記組立状態において相対する一対の第１側壁部と、前記一対の第１側壁部の側辺部間に配置される相対する一対の第２側壁部とを備え、
前記第１側壁部は、当該第１側壁部の内面の両側部から内方に突出する支持突部を備え、
前記組立状態において、前記第２側壁部の外面側が、前記第１側壁部の前記支持突部に当接、又は、近接する構成であって、
前記第１側壁部は、前記底壁構成部に対して着脱可能に構成され、
前記第１側壁部の両側部には、前記第１側壁部の厚み方向に貫通する支持収容部が、前記第１側壁部の高さ方向における前記支持突部の上方又は下方に位置するようにして設けられ、
前記折畳み状態において、
前記一対の第１側壁部同士が上下に重なり、
前記一対の第１側壁部のうち下側に配置される第１側壁部は、外面が下向きとなるように前記底壁構成部の上方に載置され、
前記一対の第１側壁部のうち上側に配置される第１側壁部は、外面が上向きとなるように前記底壁構成部の上方に載置され、
前記下側に配置される第１側壁部の前記支持突部が、前記上側に配置される第１側壁部の前記支持収容部に挿入され、
前記上側に配置される第１側壁部の前記支持突部が、前記下側に配置される第１側壁部の前記支持収容部に挿入されることを特徴とする折畳み容器。 a bottom wall forming portion having a substantially rectangular shape in a plan view;
A standing posture in which the player is erected above the side portions of the bottom wall-constituting portion corresponding to each side portion of the bottom wall-constituting portion, and a lying posture in which the player is laid down on the central portion side of the bottom wall-constituting portion. A side wall portion provided so that the posture can be changed between
In a collapsible container capable of changing its state between an assembled state in which all of the side walls are in the upright posture and a folded state in which all of the side walls are in the lying posture,
The side wall portion includes a pair of first side wall portions that face each other in the assembled state, and a pair of second side wall portions that face each other and are arranged between side portions of the pair of first side wall portions,
The first side wall includes support protrusions that protrude inward from both sides of the inner surface of the first side wall,
In the assembled state, the outer surface side of the second side wall is in contact with or close to the support protrusion of the first side wall,
The first side wall portion is configured to be detachable with respect to the bottom wall forming portion,
On both sides of the first side wall, support housing portions penetrating in the thickness direction of the first side wall are positioned above or below the support projections in the height direction of the first side wall. and
In the folded state,
The pair of first side wall portions overlap vertically,
The first side wall portion arranged on the lower side of the pair of first side wall portions is placed above the bottom wall forming portion so that the outer surface faces downward,
The first side wall portion arranged on the upper side of the pair of first side wall portions is placed above the bottom wall forming portion so that the outer surface faces upward,
the support protrusion of the first side wall portion arranged on the lower side is inserted into the support accommodating portion of the first side wall portion arranged on the upper side;
A collapsible container, wherein the support protrusion of the upper side first side wall is inserted into the support receiving portion of the lower side first side wall. 前記支持収容部は、前記第１側壁部の高さ方向における前記支持突部の下方であって、前記第１側壁部の側辺部の下端部を含む位置に設けられていることを特徴とする請求項１に記載の折畳み容器。 The support housing portion is provided below the support protrusion in the height direction of the first side wall portion and at a position including the lower end portion of the side portion of the first side wall portion. The collapsible container according to claim 1. 前記底壁構成部は、当該底壁構成部の側辺部に沿って上方に突出し、前記起立姿勢にある前記第１側壁部と連結される第１土台部と、
前記第１土台部の内面の両側部から内方に突出する補助凸部とを備え、
前記折畳み状態において、一対の前記第１側壁部が、一対の前記第１土台部の間に設置されるとともに、前記第１側壁部のそれぞれが、前記第１土台部、及び、前記補助凸部と当接、又は、近接していることを特徴とする請求項１又は２に記載の折畳み容器。 the bottom wall forming portion protrudes upward along a side portion of the bottom wall forming portion and is connected to the first side wall portion in the standing posture;
and an auxiliary convex portion projecting inward from both sides of the inner surface of the first base portion,
In the folded state, the pair of first side wall portions are installed between the pair of first base portions, and each of the first side wall portions includes the first base portion and the auxiliary convex portion. 3. The collapsible container according to claim 1, wherein the collapsible container is in contact with or in close proximity to. 前記一対の第１側壁部は、互いに同一形状をなしていることを特徴とする請求項１乃至３のいずれかに記載の折畳み容器。 4. The collapsible container according to any one of claims 1 to 3, wherein said pair of first side walls have the same shape.
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JP2000128160A (en) 1998-10-21 2000-05-09 Daifuku Co Ltd Container for packing
JP2002002696A (en) 2000-06-15 2002-01-09 Gifu Plast Ind Co Ltd Mount structure of folding container

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JP2558416B2 (en) * 1992-07-21 1996-11-27 株式会社シンワコーポレーション Compact storage steel crate
JPH09323726A (en) * 1996-06-04 1997-12-16 Steel Center:Kk Assembly type packing container and its disassembly stacking method

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
JP2000128160A (en) 1998-10-21 2000-05-09 Daifuku Co Ltd Container for packing
JP2002002696A (en) 2000-06-15 2002-01-09 Gifu Plast Ind Co Ltd Mount structure of folding container

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