JP5016384B2

JP5016384B2 - Folding container

Info

Publication number: JP5016384B2
Application number: JP2007139489A
Authority: JP
Inventors: 真人岩井
Original assignee: Gifu Plastic Industry Co Ltd
Current assignee: Gifu Plastic Industry Co Ltd
Priority date: 2007-05-25
Filing date: 2007-05-25
Publication date: 2012-09-05
Anticipated expiration: 2027-05-25
Also published as: JP2008290752A

Description

本発明は、折り畳みコンテナに関するものである。 The present invention relates to a folding container.

従来から、矩形状の底板と、底板の上方に配置した矩形枠状の口枠と、底板の対向する一対の辺と口枠の対向する一対の辺との間にそれぞれ配置した折り畳み用側板と、底板の対向する他の一対の辺と口枠の対向する他の一対の辺との間にそれぞれ配置した起倒用側板とを具備し、起倒用側板の上端を口枠に回動自在に連結して起倒用側板を起倒自在とし、折り畳み用側板を上半分の上側板と下半分の下側板とで構成して上側板の上端を口枠に回転自在に連結すると共に下側板の下端を底板に回転自在に連結し且つ上側板の下端と下側板の上端を回転自在に連結した折り畳みコンテナが知られている。 Conventionally, a rectangular bottom plate, a rectangular frame-shaped mouth frame disposed above the bottom plate, and a folding side plate respectively disposed between a pair of opposite sides of the bottom plate and a pair of opposite sides of the mouth frame. A side plate for raising and lowering disposed between another pair of opposite sides of the bottom plate and another pair of opposite sides of the mouth frame, and the upper end of the side plate for raising and lowering is rotatable about the mouth frame The folding side plate is composed of an upper half upper plate and a lower half lower plate, and the upper end of the upper plate is rotatably connected to the mouth frame and the lower side plate. There is known a folding container in which the lower end of the upper plate is rotatably connected to the bottom plate and the lower end of the upper plate and the upper end of the lower plate are rotatably connected.

上記のような折り畳みコンテナにおいて、側板の上端を口枠に回動自在に取付けるに当たって、口枠に一体に軸受け用の横孔を形成すると共に、側板の上端に横軸を一体に形成し、先端が自由端となった横軸を横孔に弾性を利用して強制的に嵌合することにより取付けていた。 In the folding container as described above, when the upper end of the side plate is rotatably attached to the mouth frame, a horizontal hole for bearing is integrally formed in the mouth frame, and the horizontal axis is integrally formed at the upper end of the side plate, Was attached by forcibly fitting the horizontal axis that became a free end into the horizontal hole using elasticity.

ところが、折り畳みコンテナを組み立てて箱状とした場合、側板に外力を加えたり、あるいは他の理由で大きな外力が加えられたりすると、弾性変形して先端が自由端となった横軸が横孔から外れてしまうという問題があった。 However, when the folding container is assembled into a box shape, when the external force is applied to the side plate, or when a large external force is applied for other reasons, the horizontal axis with the free end at the tip is elastically deformed. There was a problem of detachment.

このため、側板に外から外力が作用した際に横軸が横孔から外れないようにするために上記横軸と横孔との軸支部分とは異なる位置において、側板の上端部に別の外れ防止横軸を一体に設けると共に、口枠の内周側において下方に突出する外れ防止片を一体に垂設し、側板に外方向から外力が作用して弾性変形して横軸が横孔から外れようとしても、外れ防止横軸が外れ防止片に当たることで、横軸の横孔からの外れを防止するようにしたものが特許文献１により知られている。 For this reason, when an external force is applied to the side plate from outside, the horizontal axis is not separated from the horizontal hole. A horizontal axis is provided integrally with the anti-separation axis, and an anti-separation piece projecting downward on the inner peripheral side of the mouth frame is integrally suspended, and an external force acts on the side plate from the outside to elastically deform the horizontal axis. Japanese Patent Application Laid-Open No. 2004-133867 discloses that the horizontal axis prevents the horizontal axis from coming off from the horizontal hole even if the horizontal axis strikes the release prevention piece.

ところが、上記特許文献１に示された従来例にあっては、側板に外方から外力が作用した場合には横軸が横孔から外れるのを防止できるかも知れないが、折り畳みコンテナを箱状に組み立てて内部に収納物を入れた状態で、口枠を手で持って持ち上げると、口枠を除く、底板、側板、内容物の全ての重量が横軸と横孔との軸支部分に掛かり、内容物の重量が重い場合は横軸が横孔から外れてしまうおそれがある。特に、折り畳み用側板と口枠との軸支部分においては、口枠を手で持って持ち上げた際に、底板、側板、内容物の重量が集中して掛って、外れ易いという問題がある。
特開平１１−１４７５２５号公報 However, in the conventional example shown in the above-mentioned Patent Document 1, when an external force is applied to the side plate from the outside, it may be possible to prevent the horizontal axis from coming off the horizontal hole. If you hold the frame with your hand and lift it with the contents inside, all the weight of the bottom plate, side plate, and contents excluding the frame will be applied to the support part of the horizontal axis and horizontal hole. If the weight of the contents is heavy, the horizontal axis may be removed from the horizontal hole. In particular, in the shaft support portion between the folding side plate and the mouth frame, there is a problem that when the mouth frame is lifted by hand, the weight of the bottom plate, the side plate, and the contents are concentrated and easily come off.
JP-A-11-147525

本発明は上記の従来の問題点に鑑みて発明したものであって、折り畳みコンテナを組み立てた状態で口枠を手で持って上方に持ち上げた場合、内容物の重みにより折り畳み用側板の上側板と口枠との軸支部分が外れるのを確実に防止することができ、また、折り畳み、組み立てをスムーズ且つ精度良く行うことができる折り畳みコンテナを提供することを課題とするものである。 The present invention was invented in view of the above-described conventional problems, and when the folding container is assembled, when the mouth frame is lifted upward by hand, the upper side plate of the folding side plate due to the weight of the contents It is an object of the present invention to provide a folding container that can surely prevent the shaft support portion between the lip and the mouth frame from coming off, and that can be folded and assembled smoothly and accurately.

上記課題を解決するために本発明に係る折り畳みコンテナは、矩形状の底板２と、底板２の上方に配置した矩形枠状の口枠３と、底板２の対向する一対の辺と口枠３の対向する一対の辺との間にそれぞれ配置した折り畳み用側板４と、底板２の対向する他の一対の辺と口枠３の対向する他の一対の辺との間にそれぞれ配置した起倒用側板９とを具備し、起倒用側板９の上端を口枠３に回動自在に連結して起倒用側板９を起倒自在とし、折り畳み用側板４を上半分の上側板５と下半分の下側板６とで構成して上側板５の上端を口枠３に回転自在に連結すると共に下側板６の下端を底板２に回転自在に連結し且つ上側板５の下端と下側板６の上端を回転自在に連結した折り畳みコンテナ１において、口枠３と上側板５の上端とを連結する連結部分に、口枠３と上側板５とを回動自在に軸支する上軸部１１と上軸受け部１２とよりなる上軸支部１０と、上軸部１１が上軸受け部１２から外れるのを防止するための上外れ防止部１３を隣接して設け、該上外れ防止部１３が、少なくとも上側板５が垂直姿勢となった状態で、口枠３を持ち上げた際に、上側板５に作用する下向きの荷重により口枠３の軸支部分の隣に設けた上支持部１５の上面に当接して上側板５を口枠３に支持させるための上外れ防止片１４を上側板５に備えたものであって、上支持部１５に上軸受け部１２となる軸孔１２ａを設け、上側板５が垂直姿勢から略水平姿勢となるまで回動するときに、上外れ防止片１４が、上支持部１５の上面に対向する位置から当該上支持部１５の口枠３外側の側面部に対向する位置まで上支持部１５の外面に沿って移動することを特徴とするものである。 In order to solve the above problems, a folding container according to the present invention includes a rectangular bottom plate 2, a rectangular frame-shaped mouth frame 3 disposed above the bottom plate 2, a pair of opposite sides of the bottom plate 2 and a mouth frame 3. The folding side plate 4 disposed between a pair of opposing sides of the slab and the folding plate disposed between the other pair of opposing sides of the bottom plate 2 and the other pair of opposing sides of the mouth frame 3 respectively. And the upper side plate 9 for raising and lowering is pivotably connected to the mouth frame 3 so that the side plate 9 for raising and lowering can be raised and lowered, and the folding side plate 4 and the upper side plate 5 for the upper half. The lower plate 6 is composed of the lower plate 6 of the lower half and the upper end of the upper plate 5 is rotatably connected to the mouth frame 3 and the lower end of the lower plate 6 is rotatably connected to the bottom plate 2 and the lower end of the upper plate 5 and the lower plate In the folding container 1 in which the upper end of 6 is rotatably connected, a connecting portion that connects the mouth frame 3 and the upper end of the upper plate 5 The upper shaft support portion 10 including the upper shaft portion 11 and the upper bearing portion 12 that pivotally support the mouth frame 3 and the upper plate 5 is prevented, and the upper shaft portion 11 is prevented from being detached from the upper bearing portion 12. For preventing the detachment of the upper plate 5 from being applied to the upper plate 5 when the lip frame 3 is lifted with at least the upper plate 5 in the vertical posture. The upper plate 5 is provided with an anti-disengagement piece 14 for contacting the upper surface of the upper support portion 15 provided next to the shaft support portion of the mouth frame 3 by the load of the upper frame 5 so that the upper plate 5 is supported by the mouth frame 3. When the upper support portion 15 is provided with a shaft hole 12a to be the upper bearing portion 12 and the upper plate 5 is rotated from the vertical posture to the substantially horizontal posture, the upper slip prevention piece 14 is moved to the upper support portion. 15 from the position facing the upper surface of 15 to the position facing the outer side surface of the mouth frame 3 of the upper support 15 It is characterized in that the movement along the outer surface of the lifting portion 15.

このように少なくとも上側板５が垂直姿勢となった状態で、口枠３を持ち上げた際に、上側板５に作用する下向きの荷重により口枠３の軸支部分の隣に設けた上支持部１５の上面に当接して上側板５を口枠３に支持させるための上外れ防止片１４を備えているので、口枠３を手で持って折り畳みコンテナ１を持ち上げた際に、上外れ防止片１４が上支持部１５の上面部に当たって、収納物の重量が上外れ防止片１４から上支持部１５に掛ることになり、上軸部１１と上軸受け部１２との軸支が上下方向に外れるのが防止できる。また、上軸支部１０と上外れ防止部１３を隣接して設けてあるので、上軸支部１０を構成する上軸部１１及び上軸受け部１２と、上外れ防止部１３に備えた上支持部１５及び上外れ防止片１４との相互の位置関係が正確に確保でき、組み立てが簡単且つ正確に行えて、口枠３を手で持って折り畳みコンテナ１を持ち上げた際に、上外れ防止片１４が上支持部１５の上面部に確実に当たって、上軸部１１と上軸受け部１２との軸支が上下方向に外れるのを防止することができる。 Thus, when the upper frame 5 is lifted in a state where at least the upper plate 5 is in the vertical posture, the upper support portion provided next to the shaft support portion of the frame 3 by the downward load acting on the upper plate 5. 15 is provided with an up-slip prevention piece 14 for contacting the upper surface of 15 and supporting the upper plate 5 on the mouth frame 3, so that when the folding container 1 is lifted by holding the mouth frame 3 by hand, it is prevented from coming off. The piece 14 hits the upper surface portion of the upper support portion 15, and the weight of the stored article is applied to the upper support portion 15 from the anti-disengagement piece 14, so that the shaft support between the upper shaft portion 11 and the upper bearing portion 12 is in the vertical direction. It can be prevented from coming off. Further, since the preventing portion 13 deviates above the upper shaft support 10 is provided adjacent to, the upper shaft portion 11 and the upper bearing portion 12 of the upper shaft support 10, on provided above the outer Re preventing portion 13 supporting The mutual positional relationship between the portion 15 and the up-slip prevention piece 14 can be ensured accurately, the assembly can be performed easily and accurately, and when the folding container 1 is lifted by holding the mouth frame 3 by hand, the up-slip prevention piece It is possible to prevent the shaft support between the upper shaft portion 11 and the upper bearing portion 12 from coming off in the vertical direction by reliably hitting the upper surface portion of the upper support portion 15.

また、底板２と下側板６の下端とを連結する連結部分に、底板２と下側板６とを回動自在に軸支する下軸部１７と下軸受け部１８とよりなる下軸支部１６と、下軸部１７が下軸受け部１８から外れるのを防止するための下外れ防止部１９を隣接して設け、該下外れ防止部１９が、少なくとも下側板６が垂直姿勢となった状態で、口枠３を持ち上げた際に、底板２に作用する下向きの荷重により底板２の軸支部分の隣に設けた下支持部２０の下面に当接して底板２を下側板６に支持させるための下外れ防止片２１を下側板６に備えていることが好ましい。 Further, a lower shaft support portion 16 including a lower shaft portion 17 and a lower bearing portion 18 that pivotally supports the bottom plate 2 and the lower plate 6 at a connecting portion that connects the bottom plate 2 and the lower end of the lower plate 6. The lower shaft portion 17 is provided adjacent to the lower shaft portion 17 to prevent the lower shaft portion 17 from coming off from the lower bearing portion 18, and the lower plate portion 17 is at least in a state where the lower plate 6 is in a vertical posture. When the mouth frame 3 is lifted, a downward load acting on the bottom plate 2 makes contact with the lower surface of the lower support portion 20 provided next to the shaft support portion of the bottom plate 2 so that the bottom plate 2 is supported by the lower plate 6. It is preferable that the lower plate 6 is provided with the lower detachment prevention piece 21.

このように少なくとも下側板６が垂直姿勢となった状態で、口枠３を持ち上げた際に、底板２に作用する下向きの荷重により底板２の軸支部分の隣に設けた下支持部２０の下面に当接して底板２を下側板６に支持させるための下外れ防止片２１を下側板６に備えているので、口枠３を手で持って折り畳みコンテナ１を持ち下げた際に、下外れ防止片２１が下支持部２０の下面部に当たって、収納物の重量が下外れ防止片２１から下支持部２０に掛ることになり、下軸部１７と下軸受け部１８との軸支が上下方向に外れるのが防止できる。また、下軸支部１６と下外れ防止部１９を隣接して設けてあるので、下軸支部１６を構成する下軸部１７及び下軸受け部１８と、下外れ防止部１９に備えた下支持部２０及び下外れ防止片２１との相互の位置関係が正確に確保でき、組み立てが簡単且つ正確に行えて、口枠３を手で持って折り畳みコンテナ１を持ち下げた際に、下外れ防止片２１が下支持部２０の下面部に確実に当たって、下軸部１７と下軸受け部１８との軸支が上下方向に外れるのを防止することができる。 Thus, at least when the lower plate 6 is in the vertical posture, when the mouth frame 3 is lifted, the lower support portion 20 provided next to the shaft support portion of the bottom plate 2 due to the downward load acting on the bottom plate 2. Since the lower plate 6 is provided with a fall-off prevention piece 21 for contacting the lower surface and supporting the bottom plate 2 to the lower plate 6, when the folding container 1 is lowered by holding the mouth frame 3 by hand, The fall prevention piece 21 hits the lower surface portion of the lower support portion 20, and the weight of the stored item is applied to the lower support portion 20 from the lower fall prevention piece 21. It can be prevented from moving in the direction. Further, since is provided adjacent the prevention part 19 off the lower and the lower pivot portion 16, a lower shaft portion 17 and the lower bearing portion 18 constituting the lower shaft support 16, the lower support with the lower outer Re preventing portion 19 The mutual positional relationship between the portion 20 and the fall-off prevention piece 21 can be ensured accurately, the assembly can be performed easily and accurately, and the fall-out prevention can be prevented when the folding container 1 is lifted by holding the mouth frame 3 by hand. It is possible to prevent the piece 21 from coming into contact with the lower surface portion of the lower support portion 20 and the shaft support between the lower shaft portion 17 and the lower bearing portion 18 from coming off in the vertical direction.

本発明の請求項１記載の発明にあっては、上記のように上外れ防止片を備えているので、口枠を手で持って折り畳みコンテナを持ち上げた際に、上外れ防止片が上支持部の上面部に当たって、収納物の重量が上外れ防止片から上支持部に掛り、上軸部と上軸受け部との軸支が上下方向に外れるのを確実に防止でき、従って、折り畳みコンテナ内に重量の重い収納物を収納した状態で口枠を手で持ち上げても、軸支部分が外れない。また、上軸支部と上外れ防止部を隣接して設けてあるので、相互の位置関係が正確に確保でき、組み立てが簡単且つ正確に行えると共に、口枠を手で持って折り畳みコンテナを持ち上げた際に、上外れ防止片が上支持部の上面部に確実に当たって、上軸部と上軸受け部との軸支が上下方向に外れるのを防止することができる。 The invention according to claim 1 of the present invention is provided with the anti-disengagement piece as described above, so that the anti-disengagement piece is supported upward when the folding container is lifted by holding the mouth frame by hand. The weight of the stored item hits the upper support part from the anti-slip piece to the upper support part, and it is possible to reliably prevent the shaft support between the upper shaft part and the upper bearing part from coming off in the vertical direction. Even if a heavy frame is stored in the container, even if the frame is lifted by hand, the shaft support part does not come off. In addition, since the upper shaft support part and the upside prevention part are provided adjacent to each other, the mutual positional relationship can be ensured accurately, the assembly can be performed easily and accurately, and the folding container is lifted by holding the mouth frame by hand. At this time, it is possible to prevent the upper-separation preventing piece from coming into contact with the upper surface portion of the upper support portion, and the shaft support between the upper shaft portion and the upper bearing portion from coming off in the vertical direction.

また、請求項２記載の発明にあっては、上記請求項１記載の発明の効果に加えて、口枠を手で持って折り畳みコンテナを持ち上げた際に、下外れ防止片が下支持部の下面部に当たって、収納物の重量が下支持部から下外れ防止片に掛り、下軸部と下軸受け部との軸支が上下方向に外れるのを確実に防止でき、従って、折り畳みコンテナ内に重量の重い収納物を収納した状態で口枠を手で持ち上げても、軸支部分が外れない。また、下軸支部と下外れ防止部を隣接して設けてあるので、相互の位置関係が正確に確保でき、組み立てが簡単且つ正確に行えると共に、口枠を手で持って折り畳みコンテナを持ち上げた際に、下外れ防止片が下支持部の下面部に確実に当たって、下軸部と下軸受け部との軸支が上下方向に外れるのを防止することができる。 In addition, in the invention described in claim 2, in addition to the effect of the invention described in claim 1, when the folding container is lifted by holding the mouth frame by hand, the fall-off prevention piece is provided on the lower support portion. The weight of the stored item hits the lower support part when it hits the lower surface part, and it is possible to reliably prevent the shaft support between the lower shaft part and the lower bearing part from coming off in the vertical direction. The shaft support part does not come off even when the frame is lifted by hand with a heavy storage item. In addition, since the lower shaft support part and the lower detachment prevention part are provided adjacent to each other, the mutual positional relationship can be accurately secured, the assembly can be performed easily and accurately, and the folding container is lifted by holding the mouth frame by hand. At this time, it is possible to prevent the lower detachment preventing piece from reliably coming into contact with the lower surface portion of the lower support portion, and the shaft support between the lower shaft portion and the lower bearing portion from being detached in the vertical direction.

以下、本発明を添付図面に示す実施形態に基いて説明する。 Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

本実施形態の折り畳みコンテナ１は、図１〜図６に示すように、合成樹脂により形成した矩形状の底板２と、底板２の上方に配置した合成樹脂により形成した矩形枠状の口枠３と、底板２の対向する一対の辺と口枠３の対向する一対の辺との間にそれぞれ配置した折り畳み用側板４と、底板２の対向する他の一対の辺と口枠３の対向する他の一対の辺との間にそれぞれ配置した合成樹脂により形成した起倒用側板９とを具備している。 As shown in FIGS. 1 to 6, the folding container 1 of the present embodiment includes a rectangular bottom plate 2 formed of a synthetic resin and a rectangular frame-shaped mouth frame 3 formed of a synthetic resin disposed above the bottom plate 2. And the folding side plate 4 disposed between a pair of opposing sides of the bottom plate 2 and a pair of opposing sides of the mouth frame 3, and another pair of opposing sides of the bottom plate 2 and the mouth frame 3 are opposed to each other. A side plate 9 for raising / lowering formed of a synthetic resin, which is disposed between the other pair of sides, is provided.

起倒用側板９の上端は口枠３に回動自在に連結してあって、起倒用側板９が起倒自在となっている。また、折り畳み用側板４は合成樹脂により形成した上半分の上側板５と、合成樹脂により形成した下半分の下側板６とで構成してあり、上側板５の下端と下側板６の上端とが中間軸支部８により回動自在に連結してあって折り畳み用側板４は上下方向の中間部分で内側に折り畳み自在となっている。この中間部分で折り畳み自在となった折り畳み用側板４は、上側板５の上端を口枠３に回転自在に連結すると共に下側板６の下端を底板２に回転自在に連結し且つ上側板５の下端と下側板６の上端を回転自在に連結してある。 An upper end of the raising / lowering side plate 9 is rotatably connected to the mouth frame 3 so that the raising / lowering side plate 9 can be raised and lowered. The folding side plate 4 is composed of an upper half upper plate 5 made of synthetic resin and a lower half lower plate 6 made of synthetic resin, and includes a lower end of the upper plate 5 and an upper end of the lower plate 6. Are connected to each other by an intermediate shaft support portion 8 so that the folding side plate 4 can be folded inward at an intermediate portion in the vertical direction. The folding side plate 4 that can be folded at the intermediate portion is configured such that the upper end of the upper plate 5 is rotatably connected to the mouth frame 3 and the lower end of the lower plate 6 is rotatably connected to the bottom plate 2. The lower end and the upper end of the lower plate 6 are rotatably connected.

口枠３は矩形状に形成してある。この口枠３の上面には図１のように開口部を開閉する蓋板を設けない場合と、図１３に示すように開口部を開閉する合成樹脂製の２枚の蓋板７を軸支部３ａにより回動自在に取付ける場合とがあるが、いずれであってもよい。なお、蓋板７を設ける場合、２枚の蓋板７の各先端に、互いに重複する重複片を設けて、該重複片に相互に噛み合って係合する凹凸係合部をそれぞれ設ける。 The mouth frame 3 is formed in a rectangular shape. The upper surface of the mouth frame 3 is not provided with a cover plate for opening and closing the opening as shown in FIG. 1, and two cover plates 7 made of synthetic resin for opening and closing the opening as shown in FIG. There is a case where it can be pivotably attached by 3a, but either may be used. In addition, when providing the cover plate 7, the overlapping piece which mutually overlaps is provided in each front-end | tip of the two cover plates 7, and the uneven | corrugated engaging part which meshes | engages and engages with this overlap piece is each provided.

矩形状（図に示す実施形態においては長方形状）をした口枠３の対向する一対の辺（図に示す実施形態においては対向する長辺）は図７、図９に示すように断面略逆Ｕ字状をしており、断面略逆Ｕ字状の外側片２３は内側片２２よりも上下長さが長く、外側片２３の下端が内側片２２の下端よりも下方に位置している。内側片２２の下端から複数の下向き突片２４が一体に垂設してあり、下向き突片２４及びこれに連続する内側片２２と外側片２３との間に連結片２５が一体に架設してあり、該連結片２５から外側片２３と平行に横向き円柱状をした上支持部１５が一体に突設してある。これら下向き突片２４、連結片２５の下端は外側片２３の下端とほぼ同じレベルとなっている。 A pair of opposing sides (long sides opposing in the embodiment shown in the figure) of the mouth frame 3 having a rectangular shape (rectangular shape in the embodiment shown in the figure) are substantially opposite in cross section as shown in FIGS. The outer piece 23 having a U-shape and a substantially inverted U-shaped cross section is longer in the vertical direction than the inner piece 22, and the lower end of the outer piece 23 is positioned below the lower end of the inner piece 22. A plurality of downward projecting pieces 24 are integrally suspended from the lower end of the inner piece 22, and a connecting piece 25 is integrally constructed between the downward projecting piece 24 and the inner piece 22 and the outer piece 23 continuous thereto. In addition, an upper support portion 15 that is formed in a horizontal columnar shape in parallel with the outer piece 23 extends from the connecting piece 25 so as to project integrally. The lower ends of the downward projecting piece 24 and the connecting piece 25 are at substantially the same level as the lower end of the outer piece 23.

この横向き円柱状をした上支持部１５には該上支持部１５と同心状に上軸受け部１２となる軸孔１２ａが設けてある。 A shaft hole 12 a serving as the upper bearing portion 12 is provided concentrically with the upper support portion 15 in the horizontally supporting upper support portion 15.

上側板５の上端部には上軸受け部１２に回動自在に軸支される上軸部１１と、上支持部１５に回動自在に被嵌される上被嵌片２７とが一体に形成してある。添付図面に示す実施形態では、上側板５の上端部に複数の上凹部２６が形成してあり、各上凹部２６内の一内側面に先端が自由端となった上軸部１１を横方向に突設し、また、上凹部２６の外側端部に板状をした略逆Ｊ字状をした上被嵌片２７が設けてあり、この上被嵌片２７は縦片部２８と縦片部２８の上端部に連設した弧状をした上外れ防止片１４とで構成してある。上被嵌片２７は下端と一側端とが上凹部２６の外側下端と一側端（上軸部１１を突設していない方の側端）とに一体に連設してあり、上凹部２６の上軸部１１を突設した方の一内側面と、上外れ防止部１３の他側端との間に隙間２９が形成してある。また、板状をした上外れ防止部１３の上端部は弧状に湾曲した上外れ防止片１４となっている。 An upper shaft portion 11 that is rotatably supported by the upper bearing portion 12 and an upper fitting piece 27 that is rotatably fitted to the upper support portion 15 are integrally formed at the upper end portion of the upper plate 5. It is. In the embodiment shown in the accompanying drawings, a plurality of upper concave portions 26 are formed at the upper end portion of the upper plate 5, and the upper shaft portion 11 whose distal end is a free end on one inner side surface in each upper concave portion 26 is arranged in the lateral direction. And an upper fitting piece 27 having a substantially inverted J shape, which is plate-like, is provided on the outer end of the upper recess 26. The upper fitting piece 27 includes a vertical piece 28 and a vertical piece. It is comprised with the up-slip prevention piece 14 which carried out the arc shape continuously provided in the upper end part of the part 28. As shown in FIG. The upper cover piece 27 has a lower end and one side end integrally connected to an outer lower end and one side end (the side end on which the upper shaft portion 11 is not projected) of the upper recess 26, A gap 29 is formed between one inner side surface of the concave shaft 26 where the upper shaft portion 11 protrudes and the other side end of the upper slip prevention portion 13. Further, the upper end portion of the plate-like upward / disengagement preventing portion 13 is an upward / disengagement preventing piece 14 curved in an arc shape.

口枠３の一対の辺にそれぞれ上側板５を取付けるに当たっては、下向き突片２４を上凹部２６内に位置させ、先端が自由端となった上軸部１１を上軸受け部１２を構成する軸孔１２ａに無理嵌めにより嵌合することで回動自在に軸支し、また、同時に上端部が弧状をした上外れ防止片１４となった上被嵌片２７を外側片２３と上支持部１５との間から差し込んで上支持部１５に回動自在に嵌め込むことにより、上側板５の上端を口枠３に回動自在に取付けるものである。この場合、隙間２９に連結片２５が位置することで、折り畳み用側板４が中間部分で内側に折り畳むことができるように上側板５が口枠３に対して支障なく回動できるようになっている。 In attaching the upper plate 5 to each of the pair of sides of the mouth frame 3, the downward projecting piece 24 is positioned in the upper concave portion 26, and the upper shaft portion 11 whose tip is a free end is used as a shaft constituting the upper bearing portion 12. The upper cover piece 27 which is pivotally supported by being fitted into the hole 12a by being forcedly fitted, and at the same time, the upper end piece 27 having an upper end portion formed in an arc shape is formed as an outer piece 23 and an upper support portion 15. The upper end of the upper plate 5 is pivotably attached to the mouth frame 3 by being inserted from between the upper support portion 15 and rotatably fitted into the upper support portion 15. In this case, since the connecting piece 25 is positioned in the gap 29, the upper plate 5 can be rotated with respect to the mouth frame 3 without any trouble so that the folding side plate 4 can be folded inward at the intermediate portion. Yes.

上記のように、上軸部１１を上軸受け部１２に回動自在に軸支することで、上側板５を口枠３に回動自在に軸支する上軸支部１０が構成される。また、上被嵌片２７と外側片２３と上支持部１５とで、上軸部１１が上軸受け部１２から外れるのを防止するための上外れ防止部１３が構成される。そして、上軸支部１０と上外れ防止部１３とは隣接して位置している。 As described above, the upper shaft portion 11 that pivotally supports the upper plate 5 on the mouth frame 3 is configured by pivotally supporting the upper shaft portion 11 on the upper bearing portion 12. Further, the upper cover piece 27, the outer piece 23, and the upper support portion 15 constitute an upper slip prevention portion 13 for preventing the upper shaft portion 11 from being detached from the upper bearing portion 12. The upper shaft support portion 10 and the upside prevention portion 13 are located adjacent to each other.

ここで、図７（ａ）のように上側板５が垂直姿勢となった状態（折り畳みコンテナ１を箱状に組み立てた状態）、図７（ｃ）のように上側板５が略水平となった状態（折り畳みコンテナ１を折り畳んだ状態）、及び、図７（ｂ）のように上側板５が垂直姿勢と略水平姿勢との間で回動している状態において、上被嵌片２７の垂直な縦片部２８又は先端部の弧状をした上外れ防止片１４が外側片２３と上支持部１５との間に位置し、口枠３や上側板５に横方向の力が作用した場合（例えば、口枠３を手で持って引いたり、上側板５に外側又は内側から横方向の力が作用した場合）、上被嵌片２７の垂直な部分又は先端部の弧状をした上外れ防止片１４が、外側片２３又は上支持部１５の側面部に当たるようになっていて、これにより、先端が自由端となった上軸部１１が上軸受け部１２から横方向に外れるのが防止されるようになっている。また、上側板５が垂直姿勢となった状態では図７（ａ）のように上外れ防止片１４が上支持部１５の上面に当接又は上面との間にごく僅かな隙間を介して位置するように構成してあり、口枠３を持ち上げた際に、上側板５に作用する下向きの荷重により口枠３の軸支部分の隣に設けた上支持部１５の上面に当接するようになっており、これにより、口枠３を持ち上げた際に収納物の重量により上軸部１１が上軸受け部１２から上下方向に抜けるのが防止されるようになっている。 Here, the upper plate 5 is in a vertical position as shown in FIG. 7A (the folded container 1 is assembled in a box shape), and the upper plate 5 is substantially horizontal as shown in FIG. 7C. state (state folded folding container 1), and, in a state where the upper plate 5 is rotated between the vertical position and the substantially horizontal position as shown in FIG. 7 (b), the above object Hamahen 27 When the vertical vertical piece 28 or the arcuate upper and lower prevention piece 14 is positioned between the outer piece 23 and the upper support 15 and a lateral force acts on the mouth frame 3 or the upper plate 5 (e.g., pulling with opening frame 3 by hand, if the lateral forces from the outside or inside the upper side plate 5 is applied), on which the arcuate vertical portion or tip portion of the upper target Hamahen 27 The detachment prevention piece 14 comes into contact with the side piece of the outer piece 23 or the upper support part 15, so that the tip is Upper shaft portion 11 became Yoshitan is adapted to be prevented from coming off the upper bearing portion 12 in the lateral direction. In the state where the upper plate 5 is in the vertical posture, the up-slip prevention piece 14 is in contact with the upper surface of the upper support portion 15 as shown in FIG. When the mouth frame 3 is lifted, it is configured to come into contact with the upper surface of the upper support portion 15 provided next to the shaft support portion of the mouth frame 3 by a downward load acting on the upper plate 5. Thus, when the mouth frame 3 is lifted, the upper shaft portion 11 is prevented from coming off from the upper bearing portion 12 in the vertical direction due to the weight of the stored item.

底板２は矩形状（図に示す実施形態においては長方形状）をしており、この底板２の上面部の外周には上方に向けて突縁部３０が突設してあり、底板２の対向する一対の辺（図に示す実施形態においては対向する長辺）に位置する突縁部３０には複数の下軸受け部１８を設けてある。この下軸受け部１８は、図８、図１０に示すように、突縁部３０に上面側に開口する軸受け凹所３１を形成すると共に該軸受け凹所３１の一側部に軸受け凹所３１に連通する軸受け孔３２を形成することで構成してある。軸受け凹所３１の上記軸受け孔３２と反対側の他側部には横方向に突出した下支持部２０が設けてある。突縁部３０の内側片３０ａの軸受け凹所３１に対応する部位は内側開口３６となっている。 The bottom plate 2 has a rectangular shape (in the embodiment shown in the drawing, a rectangular shape), and a projecting edge portion 30 protrudes upward on the outer periphery of the upper surface portion of the bottom plate 2 so as to face the bottom plate 2. A plurality of lower bearing portions 18 are provided on the projecting edge portion 30 located on a pair of sides (long sides facing each other in the embodiment shown in the figure). As shown in FIGS. 8 and 10, the lower bearing portion 18 is formed with a bearing recess 31 opening on the upper surface side in the protruding portion 30 and at one side portion of the bearing recess 31 in the bearing recess 31. It is configured by forming a bearing hole 32 that communicates. On the other side of the bearing recess 31 opposite to the bearing hole 32, a lower support portion 20 that protrudes in the lateral direction is provided. A portion corresponding to the bearing recess 31 of the inner piece 30 a of the protruding portion 30 is an inner opening 36.

下側板６の下端部には下軸受け部１８に回動自在に軸支される下軸部１７と、下支持部２０に回動自在に被嵌される下被嵌片３３とが一体に形成してある。添付図面に示す実施形態では、図８、図１０に示すように、下側板６の下端部に軸主体部３４を突設すると共に各軸主体部３４の一側部に横突軸３５を突設することで下軸部１７を構成してあり、軸主体部３４の下軸部１７を突設した方と反対側の側部の外側と連続するように略Ｊ字状をした下被嵌片３３を横突軸３５の突出方向と反対方向に一体に連設してあり、略Ｊ字状をした下被嵌片３３は縦片部３４と縦片部３４の下端部に連設した弧状をした下外れ防止片２１とで構成してある。 A lower shaft portion 17 that is rotatably supported by the lower bearing portion 18 and a lower fitting piece 33 that is rotatably fitted to the lower support portion 20 are integrally formed at the lower end portion of the lower plate 6. It is. In the embodiment shown in the accompanying drawings, as shown in FIGS. 8 and 10, the shaft main body 34 protrudes from the lower end portion of the lower plate 6 and the side protrusion shaft 35 protrudes from one side of each shaft main body 34. The lower shaft portion 17 is formed by providing a lower cover portion that is substantially J-shaped so as to be continuous with the outside of the side portion on the opposite side of the shaft main body portion 34 from which the lower shaft portion 17 protrudes. The piece 33 is continuously provided in the direction opposite to the protruding direction of the horizontal protruding shaft 35, and the substantially J-shaped lower covering piece 33 is provided continuously to the vertical piece portion 34 and the lower end portion of the vertical piece portion 34. It is comprised with the fall prevention piece 21 which carried out the arc shape.

底板２の一対の辺にそれぞれ下側板６を取付けるに当たっては、軸主体部３４を軸受け凹所３１に回動自在に嵌め込むと共に横突軸３５を軸受け孔３２に嵌め込むことにより、軸主体部３４と横突軸３５とよりなる下軸部１７を、軸受け凹所３１と軸受け孔３２とよりなる下軸受け部１８に回動自在に嵌め込むことにより取付け、また、同時に下端部が弧状をした下外れ防止片２１となった下被嵌片３３を突縁部３０の内側片３０ａと下支持部２０との間から差し込んで下支持部２０に回動自在に嵌め込むことにより、下側板６の下端を底板２に回動自在に取付けるものである。この場合、内側片３０ａの軸受け凹所３１に対応する部位に内側開口３６を形成してあるので、折り畳み用側板４が中間部分で内側に折り畳むことができるように下側板６が底板２に対して支障なく回動できるようになっている。 In attaching the lower plate 6 to each of the pair of sides of the bottom plate 2, the shaft main body 34 is rotatably fitted in the bearing recess 31 and the lateral projecting shaft 35 is fitted in the bearing hole 32, thereby The lower shaft portion 17 composed of the horizontal projection shaft 34 and the lateral projecting shaft 35 is mounted by being rotatably fitted in the lower bearing portion 18 composed of the bearing recess 31 and the bearing hole 32, and the lower end portion is arcuate at the same time. The lower plate 6 is formed by inserting the lower fitting piece 33 which becomes the lower detachment preventing piece 21 from between the inner piece 30a of the projecting edge portion 30 and the lower support portion 20 and rotatably fitting into the lower support portion 20. Is attached to the bottom plate 2 in a freely rotatable manner. In this case, since the inner opening 36 is formed at a portion corresponding to the bearing recess 31 of the inner piece 30a, the lower plate 6 is opposed to the bottom plate 2 so that the folding side plate 4 can be folded inward at the intermediate portion. Can be rotated without any problem.

上記のように、下軸部１７を下軸受け部１８に回動自在に軸支することで、下側板６を底板２に回動自在に軸支する下軸支部１６が構成される。また、下被嵌片３３と突縁部３０の外側片３０ｂと下支持部２０とで、下軸部１７が下軸受け部１８から外れるのを防止するための下外れ防止部１９が構成される。そして、下軸支部１６と下外れ防止部１９とは隣接して位置している。 As described above, the lower shaft support portion 16 that rotatably supports the lower plate 6 to the bottom plate 2 is configured by pivotally supporting the lower shaft portion 17 on the lower bearing portion 18. Further, the lower cover piece 33, the outer piece 30 b of the projecting edge portion 30, and the lower support portion 20 constitute a lower fall prevention portion 19 for preventing the lower shaft portion 17 from coming off the lower bearing portion 18. . The lower shaft support portion 16 and the lower detachment prevention portion 19 are located adjacent to each other.

ここで、図８（ａ）のように下側板６が垂直姿勢となった状態（折り畳みコンテナ１を箱状に組み立てた状態）、図８（ｃ）のように下側板６が略水平となった状態（折り畳みコンテナ１を折り畳んだ状態）、及び、図８（ｂ）のように下側板６が垂直姿勢と略水平姿勢との間で回動している状態において、下被嵌片３３の垂直な部分又は先端部の弧状をした下外れ防止片２１が外側片３０ｂと下支持部２０との間に位置し、底板２や下側板６に横方向の力が作用した場合、下被嵌片３３の垂直な部分又は先端部の弧状をした下外れ防止片２１が、外側片３０ｂ又は下支持部２０の側面部に当たるようになっていて、これにより、下軸部１７が下軸受け部１８から横方向に外れるのが防止されるようになっている。また、下側板６が垂直姿勢となった状態では図８（ａ）のように下外れ防止片２１が下支持部２０の下面に当接又は下面との間にごく僅かな隙間を介して下方に位置するように構成してあり、口枠３を持ち上げた際に、底板２に作用する下向きの荷重により下支持部２０の下面に当接するようになっており、これにより、口枠３を持ち上げた際に収納物の重量により下軸部１７が下軸受け部１８から上下方向に抜けるのが防止されるようになっている。 Here, a state where the lower plate 6 is in a vertical posture as shown in FIG. 8A (a state where the folding container 1 is assembled in a box shape), and the lower plate 6 is substantially horizontal as shown in FIG. 8C. In the folded state (the folded container 1 is folded) and the lower plate 6 is rotated between the vertical posture and the substantially horizontal posture as shown in FIG. When a vertical part or an arc-shaped lowering prevention piece 21 is positioned between the outer piece 30b and the lower support part 20 and a lateral force is applied to the bottom plate 2 or the lower side plate 6, the lower cover is fitted. The vertical part of the piece 33 or the arcuate fall-off prevention piece 21 at the tip end part comes into contact with the side piece of the outer piece 30b or the lower support part 20, so that the lower shaft part 17 becomes the lower bearing part 18. Is prevented from coming off in the horizontal direction. In the state where the lower plate 6 is in the vertical posture, the fall-off prevention piece 21 is in contact with the lower surface of the lower support portion 20 as shown in FIG. When the mouth frame 3 is lifted, it is brought into contact with the lower surface of the lower support portion 20 due to a downward load acting on the bottom plate 2. The lower shaft portion 17 is prevented from coming out of the lower bearing portion 18 in the vertical direction due to the weight of the stored item when it is lifted.

口枠３の対向する他の一対の辺（図の実施形態では口枠３の短辺）にはそれぞれ起倒用側板９の上端部が軸支部３７を介して回動自在に取付けてある。ここで、起倒用側板９は垂直姿勢から、底板２の上方位置において底板と略平行となる略水平姿勢の間で回動自在となっている。 The upper end portion of the raising and lowering side plate 9 is rotatably attached to the other pair of opposite sides of the mouth frame 3 (short sides of the mouth frame 3 in the illustrated embodiment) via the shaft support portion 37. Here, the raising and lowering side plate 9 is rotatable between a vertical posture and a substantially horizontal posture which is substantially parallel to the bottom plate at a position above the bottom plate 2.

図１１に示すように、起倒用側板９の下端部には下係止部３８が設けてあり、また、底板２の対向する他の一対の辺（図の実施形態では底板２の短辺）には突縁部３０の内側に下被係止部３９が設けてあり、起倒用側板９を垂直に起立させた状態で、該下係止部３８が下被係止部３９に着脱自在に係止して起倒用側板９と底板２とを着脱自在に連結するようになっている。 As shown in FIG. 11, a lower locking portion 38 is provided at the lower end portion of the raising and lowering side plate 9, and the other pair of opposite sides of the bottom plate 2 (the short side of the bottom plate 2 in the illustrated embodiment). ) Is provided with a lower locking portion 39 on the inner side of the projecting edge portion 30, and the lower locking portion 38 is attached to and detached from the lower locked portion 39 in a state where the side plate 9 for raising and lowering is vertically raised. The side plate for raising and lowering 9 and the bottom plate 2 are detachably connected by freely locking.

また、起倒用側板９の両側端部には側係止部４０が設けてあり、また、折り畳み用側板４を構成する上側板５と下側板６との両端部にはそれぞれ側被係止部４１が設けてあり、折り畳み用側板４を垂直姿勢にした後に、起倒用側板９を回動して垂直姿勢にすると、図１２に示すように起倒用側板９の両端部が折り畳み用側板４の端部内面に当接すると共に側係止部４０が側被係止部４１に係止して起倒用側板９と折り畳み用側板４とが着脱自在に連結されるようになっている。 Further, side locking portions 40 are provided at both end portions of the raising and lowering side plate 9, and side locked portions are respectively provided at both end portions of the upper side plate 5 and the lower side plate 6 constituting the folding side plate 4. When the folding side plate 4 is in a vertical posture after the folding side plate 4 is in a vertical posture, both ends of the folding side plate 9 are folded as shown in FIG. The side plate 40 is in contact with the inner surface of the end portion of the side plate 4 and the side locking portion 40 is locked to the side locked portion 41 so that the raising and lowering side plate 9 and the folding side plate 4 are detachably connected. .

上記の構成の折り畳みコンテナ１は図１乃至図３に示すような組み立て状態から折り畳む際は、図１の状態からまず両起倒用側板９を回動して略水平状態とし、その後、両折り畳み用側板４を中間部分で内側に２つ折りすることで、図４、図６に示すように、底板２上に２つ折りした両折り畳み用側板４が重なり、更に、２つ折りした折り畳み用側板４の上に起倒用側板９が重なり、底板２の周囲の突縁部３０上に口枠３が重なり、しかも、２つ折りした両折り畳み用側板４、起倒用側板９がいずれも底板２の周囲の突縁部３０と口枠３とで囲まれた空間内に収納される。 When the folding container 1 having the above configuration is folded from the assembled state as shown in FIGS. 1 to 3, first, the both side plates 9 are turned from the state shown in FIG. 1 to a substantially horizontal state, and then both folded. As shown in FIGS. 4 and 6, the folding side plate 4 is folded inward at the middle portion so that the folding side plates 4 are folded on the bottom plate 2, and the folding side plate 4 is further folded in two. The side plate 9 for raising / lowering overlaps, the frame 3 overlaps on the protruding edge 30 around the bottom plate 2, and both the side plate 4 for folding and the side plate 9 for raising / lowering both surround the bottom plate 2. Is housed in a space surrounded by the protruding edge portion 30 and the mouth frame 3.

一方、折り畳み状態から組み立てる際は、口枠３を底板２から離すように持ち上げることで、２つ折りされた両折り畳み用側板４が垂直姿勢となるように展開されるので、この状態で、両起倒用側板９を回動して垂直姿勢とすることで、起倒用側板９の両端部が垂直姿勢となった両折り畳み用側板４の端部内面に当接し、更に、下係止部３８と下被係止部３９とを係止すると共に側係止部４０と側被係止部４１とを係止することで、図１乃至図３に示すように箱形状に組み立てるものである。 Meanwhile, when assembling the folded state, on up Rukoto have to release the opening frame 3 from the bottom plate 2, since the 2-folded both folding side plates 4 were is expanded so that the vertical position, in this state By turning both the raising and lowering side plates 9 to the vertical posture, both end portions of the raising and lowering side plates 9 come into contact with the inner surfaces of the end portions of the folding side plates 4 that are in the vertical posture. As shown in FIG. 1 to FIG. 3, it is assembled in a box shape by locking the locking portion 38 and the lower locking portion 39 and locking the side locking portion 40 and the side locking portion 41. It is.

このようにして箱形状に組み立てた折り畳みコンテナ１内に収納物を収納して収納物の保管や搬送に利用する。 Thus, the stored items are stored in the folding container 1 assembled in a box shape and used for storing and transporting the stored items.

この際、箱形状に組み立てた折り畳みコンテナ１を手で持つ際に口枠３を手に持って持ち上げる場合がある。口枠３を持って折り畳みコンテナ１を持ち上げると、口枠３と折り畳み用側板４の上側板５との連結部分に、口枠３を除く折り畳みコンテナ１及び収納物の全重量がかかることになり、収納物が重量物の場合は、上軸部１１が上軸受け部１２から上下方向に外れようとするが、本発明においては、上側板５が垂直姿勢となった状態で、口枠３を持ち上げた際に、図７（ａ）のように、上外れ防止片１４が上支持部１５の上面部に当接するので、収納物の重量が上外れ防止片１４から上支持部１５に掛かって支持されることになり、上軸部１１と上軸受け部１２との軸支部分に収納物の重量が集中して掛からないか又は殆ど軸支部分に重量が掛からないようにできて、上軸部１１が上軸受け部１２から上下方向に外れることがない。 At this time, when holding the folding container 1 assembled in a box shape by hand, there are cases where the mouth frame 3 is held and lifted. When the folding container 1 is lifted with the mouth frame 3, the entire weight of the folding container 1 and the stored items excluding the mouth frame 3 is applied to the connecting portion between the mouth frame 3 and the upper side plate 5 of the folding side plate 4. When the stored item is a heavy item, the upper shaft portion 11 tends to be removed from the upper bearing portion 12 in the vertical direction. When lifted, as shown in FIG. 7 (a), the upper slip prevention piece 14 comes into contact with the upper surface portion of the upper support portion 15. Therefore, the weight of the stored item is applied to the upper support portion 15 from the upper slip prevention piece 14. The weight of the stored item is concentrated on the shaft support portion of the upper shaft portion 11 and the upper bearing portion 12 so that the weight is not applied to the shaft support portion or almost no weight is applied to the shaft support portion. The portion 11 is not detached from the upper bearing portion 12 in the vertical direction.

ここで、本発明においては、上軸支部１０と上外れ防止部１３を隣接して設けてあるので、上軸支部１０を構成する上軸部１１及び上軸受け部１２と、上外れ防止部１３に備えた上支持部１５及び上外れ防止片１４との相互の位置関係が正確に確保でき、変形等による相互の位置関係の誤差も少なくなる。したがって、口枠３と上側板５との組み立てが簡単且つ正確に行えることになり、このように組み立てが正確にできるので、口枠３を手で持って折り畳みコンテナ１を持ち上げた際に、上外れ防止片１４が上支持部１５の上面部に確実に当たって、いっそう上軸部１１と上軸受け部１２との軸支が上下方向に外れるのを防止することができる。 In the present invention, since the preventing portion 13 deviates above the upper shaft support 10 is provided adjacent to, the upper shaft portion 11 and the upper bearing portion 12 of the upper shaft support 10, on the outer Re preventing portion 13, the mutual positional relationship between the upper support portion 15 and the upper detachment preventing piece 14 can be accurately ensured, and errors in the mutual positional relationship due to deformation or the like are reduced. Accordingly, the assembling of the mouth frame 3 and the upper plate 5 can be performed easily and accurately. In this way, the assembling can be performed accurately, so that when the folding container 1 is lifted by holding the mouth frame 3 by hand, It is possible to prevent the disengagement prevention piece 14 from coming into contact with the upper surface portion of the upper support portion 15 and further prevent the shaft support between the upper shaft portion 11 and the upper bearing portion 12 from coming off in the vertical direction.

また、箱状に組み立てた状態で、口枠３を手で掴んで持ち上げた場合、底板２に掛かる収納物の重量が、底板２と下側板６との連結部分に掛かるが、図８（ａ）のように下外れ防止片２１が下支持部２０の下面部に当たって、収納物の重量が下外れ防止片２１から下支持部２０に掛って支持され、これにより、下軸部１７と下軸受け部１８との軸支部分に収納物の重量が集中して掛からないか又は殆ど軸支部分に重量が掛からないようにできて、下軸部１７が下軸受け部１８から上下方向に外れることがない。また、下軸支部１６と下外れ防止部１９を隣接して設けてあるので、下軸支部１６を構成する下軸部１７及び下軸受け部１８と、下外れ防止部１９に備えた下支持部２０及び下外れ防止片２１との相互の位置関係が正確に確保でき、組み立てが簡単且つ正確に行えて、口枠３を手で持って折り畳みコンテナ１を持ち下げた際に、下外れ防止片２１が下支持部２０の下面部に確実に当たって、下軸部１７と下軸受け部１８との軸支が上下方向に外れるのをいっそう防止することができる。 Further, when the mouth frame 3 is grasped and lifted by hand in the state of being assembled in a box shape, the weight of the stored item hanging on the bottom plate 2 is applied to the connecting portion between the bottom plate 2 and the lower plate 6, but FIG. ), The fall-off prevention piece 21 hits the lower surface portion of the lower support portion 20, and the weight of the stored item is supported from the lower fall-off prevention piece 21 to the lower support portion 20, whereby the lower shaft portion 17 and the lower bearing are supported. The weight of the stored item is concentrated on the shaft support portion with the portion 18 so that the weight is not applied to the shaft support portion, or almost no weight is applied to the shaft support portion, and the lower shaft portion 17 can be detached from the lower bearing portion 18 in the vertical direction. Absent. Further, since is provided adjacent the prevention part 19 off the lower and the lower pivot portion 16, a lower shaft portion 17 and the lower bearing portion 18 constituting the lower shaft support 16, the lower support with the lower outer Re preventing portion 19 The mutual positional relationship between the portion 20 and the fall-off prevention piece 21 can be ensured accurately, the assembly can be performed easily and accurately, and the fall-out prevention can be prevented when the folding container 1 is lifted by holding the mouth frame 3 by hand. It is possible to further prevent the piece 21 from coming into contact with the lower surface portion of the lower support portion 20 and the axial support of the lower shaft portion 17 and the lower bearing portion 18 from coming off in the vertical direction.

また、口枠３を手で持って手前に引いたり、あるいは、折り畳み用側板４に横方向の外力が作用した場合、上外れ防止部１３により上軸部１１と上軸受け部１２との軸支が横方向に外れるのが防止できると共に、下外れ防止部１９により下軸部１７と下軸受け部１８との軸支が横方向に外れるのが防止できる。 Further, when the frame 3 is held by hand and pulled forward, or when a lateral external force is applied to the folding side plate 4, the shaft support between the upper shaft portion 11 and the upper bearing portion 12 is provided by the upper slip prevention portion 13. Can be prevented from coming off in the lateral direction, and the shaft support between the lower shaft part 17 and the lower bearing part 18 can be prevented from coming off in the lateral direction by the lowering prevention part 19.

添付図面に示す上記実施形態では、上軸部１１を上側板５に設け、上軸受け部１８を口枠３に設けて上軸支部１０を構成した例を示したが、上軸部１１を口枠３に設け、上軸受け部１２を上側板５に設けて上軸支部１０を構成してもよい。 In the above-described embodiment shown in the accompanying drawings, an example is shown in which the upper shaft portion 11 is provided on the upper plate 5 and the upper bearing portion 18 is provided on the mouth frame 3 to constitute the upper shaft support portion 10. The upper shaft support portion 10 may be configured by providing the frame 3 and providing the upper bearing portion 12 on the upper plate 5.

また、添付図面に示す上記実施形態では、下軸部１７を下側板６に設け、下軸受け部１８に設けて下軸支部１６を構成した例を示したが、下軸部１７を底板２に設け、下軸受け部１８を下側板６に設けて下軸支部１６を構成してもよい。 Moreover, in the said embodiment shown to an accompanying drawing, although the lower shaft part 17 was provided in the lower side board 6, and the lower shaft support part 16 was comprised by providing in the lower bearing part 18, the lower shaft part 17 was shown in the baseplate 2. The lower shaft support portion 16 may be configured by providing the lower bearing portion 18 on the lower plate 6.

また、図示を省略しているが、口枠３と起倒用側板９の上端とを連結する連結部分に、本発明の上側板５と口枠３との連結と同じように、口枠３と起倒用側板９とを回動自在に軸支する上軸部と上軸受け部とよりなる上軸支部と、上軸部が上軸受け部から外れるのを防止するための上外れ防止部を隣接して設け、該上外れ防止部が、少なくとも起倒用側板９が垂直姿勢となった状態で、口枠を持ち上げた際に、起倒用側板９に作用する下向きの荷重により口枠の軸支部分の隣に設けた上支持部の上面に当接して起倒用側板９を口枠３に支持させるための上外れ防止片を起倒用側板９に備えてもよいものである。 Although not shown in the drawing, the connecting portion connecting the mouth frame 3 and the upper end of the raising and lowering side plate 9 is connected to the mouth frame 3 in the same manner as the connection between the upper plate 5 and the mouth frame 3 of the present invention. And an upper shaft supporting portion composed of an upper shaft portion and an upper bearing portion for pivotally supporting the raising / lowering side plate 9 and an upper slip prevention portion for preventing the upper shaft portion from being detached from the upper bearing portion. When the mouth frame is lifted in a state where at least the raising and lowering side plate 9 is in a vertical posture, the upward / sloping prevention portion is provided adjacent to the upper and lower side prevention portions by the downward load acting on the raising and lowering side plate 9. The raising / lowering side plate 9 may be provided with an anti-disengagement piece that contacts the upper surface of the upper support portion provided next to the shaft support portion to support the raising / lowering side plate 9 on the mouth frame 3.

本発明の折り畳みコンテナを箱状に組み立てた状態の斜視図である。It is a perspective view of the state which assembled the folding container of this invention in the box shape. 同上の箱状に組み立てた状態の側面断面図である。It is side surface sectional drawing of the state assembled in the box shape same as the above. 同上の箱状に組み立てた状態の側面図である。It is a side view of the state assembled in the box shape same as the above. 同上の折り畳んだ状態の側面断面図である。It is side surface sectional drawing of the folded state same as the above. 同上の折り畳んだ状態の側面図である。It is a side view of the folded state same as the above. 同上の折り畳んだ状態の正面断面図である。It is front sectional drawing of the folded state same as the above. （ａ）は同上の上側板の垂直状態における上外れ防止部部分の断面図であり、（ｂ）は上側板を回動している途中の状態における上外れ防止部部分の断面図であり、（ｃ）は上側板の略水平状態における上外れ防止部部分の断面図である。(A) is a cross-sectional view of the upper detachment prevention portion portion in the vertical state of the upper plate of the same, (b) is a cross-sectional view of the upper detachment prevention portion portion in the middle of rotating the upper plate, (C) is a cross-sectional view of the upper detachment prevention portion in the substantially horizontal state of the upper plate. （ａ）は同上の下側板の垂直状態における下外れ防止部部分の断面図であり、（ｂ）は下側板を回動している途中の状態における下外れ防止部部分の断面図であり、（ｃ）は下側板の略水平状態における下外れ防止部部分の断面図である。(A) is a cross-sectional view of the lower detachment prevention portion in the vertical state of the lower plate of the same, (b) is a cross-sectional view of the lower detachment prevention portion in the middle of rotating the lower plate, (C) is a cross-sectional view of the lower detachment prevention portion in the substantially horizontal state of the lower plate. 同上の口枠と上側板との連結部分を示す分解斜視図である。It is a disassembled perspective view which shows the connection part of a same opening frame and an upper side board. 同上の底板と下側板との連結部分を示す分解斜視図である。It is a disassembled perspective view which shows the connection part of a baseplate and a lower side board same as the above. 同上の起倒用側板の下端部の下係止部を底板に設けた下被係止部に係止した部分の断面図である。It is sectional drawing of the part which latched the lower latching | locking part of the lower end part of the raising side plate same as the above to the lower to-be-latched part provided in the bottom plate. 同上の起倒用側板の側端部の側係止部を折り畳み用側板の側被係止部に係止した部分の断面図である。It is sectional drawing of the part which latched the side latching | locking part of the side edge part of the side plate for raising same as the above to the side latching part of the side plate for folding. 本発明の他の実施形態の箱状に組み立てた状態の斜視図である。It is a perspective view of the state assembled in the box shape of other embodiments of the present invention.

符号の説明Explanation of symbols

１折り畳みコンテナ
２底板
３口枠
４折り畳み用側板
５上側板
６下側板
９起倒用側板
１０上軸支部
１１上軸部
１２上軸受け部
１３上外れ防止部
１４上外れ防止片
１５上支持部
１６下軸支部
１７下軸部
１８下軸受け部
１９下外れ防止部
２０下支持部
２１下外れ防止片 DESCRIPTION OF SYMBOLS 1 Folding container 2 Bottom plate 3 Mouth frame 4 Folding side plate 5 Upper side plate 6 Lower side plate 9 Tilting side plate 10 Upper shaft support portion 11 Upper shaft portion 12 Upper bearing portion 13 Upper removal prevention portion 14 Upper removal prevention piece 15 Upper support portion 16 Lower shaft support portion 17 Lower shaft portion 18 Lower bearing portion 19 Lower detachment prevention portion 20 Lower support portion 21 Lower detachment prevention piece

Claims

矩形状の底板と、底板の上方に配置した矩形枠状の口枠と、底板の対向する一対の辺と口枠の対向する一対の辺との間にそれぞれ配置した折り畳み用側板と、底板の対向する他の一対の辺と口枠の対向する他の一対の辺との間にそれぞれ配置した起倒用側板とを具備し、起倒用側板の上端を口枠に回動自在に連結して起倒用側板を起倒自在とし、折り畳み用側板を上半分の上側板と下半分の下側板とで構成して上側板の上端を口枠に回転自在に連結すると共に下側板の下端を底板に回転自在に連結し且つ上側板の下端と下側板の上端を回転自在に連結した折り畳みコンテナにおいて、口枠と上側板の上端とを連結する連結部分に、口枠と上側板とを回動自在に軸支する上軸部と上軸受け部とよりなる上軸支部と、上軸部が上軸受け部から外れるのを防止するための上外れ防止部を隣接して設け、該上外れ防止部が、少なくとも上側板が垂直姿勢となった状態で、口枠を持ち上げた際に、上側板に作用する下向きの荷重により口枠の軸支部分の隣に設けた上支持部の上面に当接して上側板を口枠に支持させるための上外れ防止片を上側板に備えたものであって、上支持部に上軸受け部となる軸孔を設け、上側板が垂直姿勢から略水平姿勢となるまで回動するときに、上外れ防止片が、上支持部の上面に対向する位置から当該上支持部の口枠外側の側面部に対向する位置まで上支持部の外面に沿って移動することを特徴とする折り畳みコンテナ。 A rectangular bottom plate, a rectangular frame-shaped mouth frame disposed above the bottom plate, a folding side plate disposed between a pair of opposite sides of the bottom plate and a pair of opposite sides of the mouth frame, and a bottom plate And a side plate for raising / lowering disposed between the other pair of opposing sides and the other pair of opposing sides of the mouth frame, and the upper end of the side plate for raising / lowering is rotatably connected to the mouth frame. The folding side plate is composed of an upper half upper plate and a lower half lower plate, the upper end of the upper plate is rotatably connected to the mouth frame, and the lower end of the lower plate is In a folding container that is rotatably connected to the bottom plate and rotatably connected to the lower end of the upper plate and the upper end of the lower plate, the mouth frame and the upper plate are rotated around the connecting portion that connects the upper frame and the upper end of the upper plate. An upper shaft support portion composed of an upper shaft portion and an upper bearing portion that are rotatably supported, and the upper shaft portion is disengaged from the upper bearing portion. An up-slip prevention part is provided adjacent to the top-side prevention part, and the up-slip prevention part acts downward on the upper plate when the mouth frame is lifted with at least the upper plate in a vertical posture. The upper support plate is provided with an anti-disengagement piece on the upper plate for contacting the upper surface of the upper support portion provided next to the shaft support portion of the mouth frame by the load so that the upper plate is supported by the mouth frame. A shaft hole serving as an upper bearing portion is provided in the upper support portion, and when the upper plate rotates from a vertical posture to a substantially horizontal posture, the upper detachment prevention piece is moved from a position facing the upper surface of the upper support portion. A folding container that moves along the outer surface of the upper support portion to a position facing the side surface portion on the outer side of the mouth frame .

底板と下側板の下端とを連結する連結部分に、底板と下側板とを回動自在に軸支する下軸部と下軸受け部とよりなる下軸支部と、下軸部が下軸受け部から外れるのを防止するための下外れ防止部を隣接して設け、該下外れ防止部が、少なくとも下側板が垂直姿勢となった状態で、口枠を持ち上げた際に、底板に作用する下向きの荷重により底板の軸支部分の隣に設けた下支持部の下面に当接して底板を下側板に支持させるための下外れ防止片を下側板に備えていることを特徴とする請求項１記載の折り畳みコンテナ。 A lower shaft support portion composed of a lower shaft portion and a lower bearing portion that pivotally supports the bottom plate and the lower plate at a connecting portion that connects the bottom plate and the lower end of the lower plate, and the lower shaft portion from the lower bearing portion A fall-off prevention part is provided adjacently to prevent detachment, and the fall-off prevention part is a downward-facing action that acts on the bottom plate when the mouth frame is lifted with at least the lower plate in a vertical posture. 2. The lower plate is provided with a fall-off preventing piece for contacting the lower surface of the lower support portion provided next to the shaft support portion of the bottom plate by a load so that the bottom plate is supported by the lower plate. Folding container.