JP2003300526A - Folding box - Google Patents
Folding boxInfo
- Publication number
- JP2003300526A JP2003300526A JP2003031697A JP2003031697A JP2003300526A JP 2003300526 A JP2003300526 A JP 2003300526A JP 2003031697 A JP2003031697 A JP 2003031697A JP 2003031697 A JP2003031697 A JP 2003031697A JP 2003300526 A JP2003300526 A JP 2003300526A
- Authority
- JP
- Japan
- Prior art keywords
- folding
- long side
- side plate
- edge
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Rigid Containers With Two Or More Constituent Elements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、折畳み箱の改良に
関する。TECHNICAL FIELD The present invention relates to an improvement of a folding box.
【０００２】[0002]
【従来の技術】折畳み可能な通い箱等の箱の従来技術と
して、先に、本出願人は、次のような折畳み箱を特許出
願し、実用化もしている（特許文献１）。このものは、
ポリプロピレン（以下、ＰＰと略記する）製の二枚の基
板間に同じくＰＰ製の中空コア材をサンドイッチ状に一
体成形したＰＰ製段ボールをカットして得られた底板
と、底板の両側に折曲げにより立設され、長尺側側面部
を構成する長尺側側板と、長尺側側板の前後開口部に配
置される同じくＰＰ製段ボールからなる一対の短尺側側
板と、両側板の上縁に嵌合されて枠組を構成する枠縁
と、各枠縁が突合わされるコーナ部に嵌合されて縁枠を
連結する４つの上部コーナ材、並びに底板のコーナ部に
嵌合されて、各側板の立上げ形状を保持する４つの下部
コーナ材とを備えている。2. Description of the Related Art As a conventional technique for a foldable returnable box or the like, the present applicant has previously filed a patent for the following foldable box and has put it into practical use (Patent Document 1). This one is
A bottom plate obtained by cutting a PP corrugated board integrally formed with a polypropylene hollow core material in a sandwich shape between two substrates made of polypropylene (hereinafter abbreviated as PP), and bent to both sides of the bottom plate. And a pair of short side plates also made of PP corrugated cardboard, which are arranged at the front and rear openings of the long side plates, and the upper edges of both side plates. Frame edges that are fitted together to form a framework, four upper corner members that are fitted to corner portions where each frame edge abuts and connect the edge frames, and fitted to the corner portions of the bottom plate, and each side plate And four lower corner materials that maintain the rising shape of the.
【０００３】そして、各長尺側側板には上部、下部及び
中央にヒンジとなる折畳み線が形成され、底面板側に向
けてく字形に折畳み可能としたものであり、各短尺側側
板の上部には折畳み線を形成し、縁枠の内側に向けて折
畳み可能としたものであり、各側板の上縁を枠縁及びコ
ーナ材により箱枠状に一体に組立てた状態で、各折畳み
線をヒンジとして折畳むことにより、縁枠内に平坦化さ
れ、かつ折畳み線をヒンジとして、各側板を立ち上げる
ことで箱形状に造形されるものである。Folding lines serving as hinges are formed on the upper, lower, and central portions of each long side plate so that they can be folded in a V shape toward the bottom plate side. On the upper side of each short side plate. Is a fold line that can be folded toward the inside of the edge frame, and each fold line is hinged when the upper edge of each side plate is integrally assembled into a box frame shape with the frame edge and corner material. As a result, it is flattened in the edge frame by folding as, and is shaped into a box by raising each side plate using the folding line as a hinge.
【０００４】この従来技術では、箱の保管時には、これ
を平坦化して段積みすることにより減容化でき、使用時
においては簡単な組上げ操作で箱状に展開形成すること
ができ、またＰＰの持つ材料強度により繰返し何度でも
使用できるといった利点がある。In this prior art, when the boxes are stored, they can be flattened and stacked to reduce the volume, and when used, they can be developed and formed into a box by a simple assembling operation. It has the advantage that it can be used repeatedly as many times as it has strength of material.
【０００５】[0005]
【特許文献１】特許第２５４６３１７号公報[Patent Document 1] Japanese Patent No. 2546317
【０００６】[0006]
【特許文献２】特開平６−１３５４４０号公報[Patent Document 2] JP-A-6-135440
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、特に、
上述した特許文献２に開示された従来の折畳み箱にあっ
ては、折畳みを可能とするためのすべての折畳み線が、
ＰＰ製段ボールのうちの一方の基板を残して他方の基板
及びコアに直交してその長手方向に切れ目を入れること
により外側の基板をヒンジとして折畳み展開可能に形成
されるもの（いわゆる半切り）となっているが、ＰＰの
ヒンジ特性による耐久性はあるものの、さらなる耐久性
の向上が要請されるほか、切れ目がナイフエッジであっ
て、この部分に異物が挟み込まれると最終展開すること
ができないという欠点があった。However, in particular,
In the conventional folding box disclosed in Patent Document 2 mentioned above, all folding lines for enabling folding are
What is formed so as to be able to fold and expand by using the outer substrate as a hinge by leaving a substrate of one of the PP corrugated board and making a cut in the longitudinal direction thereof orthogonal to the other substrate and the core (so-called half-cut) However, although it has durability due to the hinge characteristics of PP, further improvement in durability is required, and it is said that the cut is a knife edge and if foreign matter is caught in this part, final deployment is not possible. There was a flaw.
【０００８】また、実際の物流に係わる梱包現場におい
ては、箱を乱雑に取扱うことが多いため、前記構造の折
畳み箱にあっては、片持ち支持された側の短尺側側面板
を正規の位置に固定することが難しく、箱の内側に向う
大きな外力が加わると、簡単にへたりこんでしまい、造
形が保てなくなる場合が多かった。また、その逆に重量
物を梱包して段積みすると、短尺側側板が外側に開いて
しまい、これが戻る際に長尺側側板の端部にかじり込ん
でしまい、元に戻す作業が面倒となっていた。[0008] In addition, since the boxes are often handled in a random manner at the packing site related to the actual physical distribution, in the folding box having the above structure, the short side plate on the cantilevered side is in the proper position. It was difficult to fix it to, and when a large external force was applied to the inside of the box, it easily dented, and it was often impossible to maintain the modeling. On the other hand, if heavy items are packed and stacked, the short side plates will open outward, and when they return, they will bite into the ends of the long side plates, making it difficult to restore them. Was there.
【０００９】このような脆弱性を防止するためには、四
隅部分に補強用のコーナ支柱を設けたり、内倒れ防止ス
トッパなどを設けることも考えられるが、いずれも構造
の複雑さや部品点数の増加を伴い、不経済であり、加え
て、折畳み及び展開時の作業が複雑で面倒なものとな
り、実際の現場に即応できないものとなるといった課題
がある。In order to prevent such fragility, it is conceivable to provide reinforcing corner struts at the four corners or to provide inward fall prevention stoppers, but both of them increase the complexity of the structure and the number of parts. Therefore, there is a problem that it is uneconomical, and in addition, the work at the time of folding and unfolding is complicated and troublesome, and it becomes impossible to immediately respond to the actual site.
【００１０】本発明は、以上の課題を解決するものであ
って、その目的は、構造が簡単で部品点数が少なく、し
かも容易に折畳み及び立上げ展開することができ、組上
げた状態では、きわめて堅牢な折畳み箱を提供せんとす
るものである。The present invention is intended to solve the above problems, and its purpose is to have a simple structure, a small number of parts, and can be easily folded and set up and deployed. It aims to provide a robust folding box.
【００１１】[0011]
【課題を解決するための手段】以上の目的を達成するた
め、本発明のうち請求項１に記載の発明は、ポリプロピ
レン製の二枚の基板間に同じくポリプロピレン製の中空
コア材をサンドイッチ状に一体成形したポリプロピレン
製段ボールをカットして得られた底板と、底板の両側に
折曲げにより立設され、長尺側側面部を構成する長尺側
側板と、長尺側側板の前後開口部に９０°交叉して配置
される同じくポリプロピレン製段ボール製の一対の短尺
側側板と、両側板の上縁に嵌合されて枠組を構成する枠
縁と、各枠縁が突合わされるコーナ部に嵌合されて縁枠
を連結する４つの上部コーナ材とを備え、前記各長尺側
側板には上部、下部及び中央にヒンジとなる折畳み線が
形成され、前記底面板側に向けてく字形に折畳み可能と
したものであり、前記各短尺側側板の上部には折畳み線
を形成し、縁枠の内側に向けて折畳み可能としたもので
あり、前記各側板の上縁を前記枠縁及びコーナ材により
箱枠状に一体に組立てた状態で、各折畳み線をヒンジと
して折畳むことにより、縁枠内に平坦化され、かつ折畳
み線をヒンジとして、各側板を立ち上げることで箱形状
に造形される折畳み箱において、前記長尺側側板の中央
に形成される折畳み線は、外側の基板を残して長手方向
に切れ目を入れることにより外側の基板をヒンジとして
折畳み展開可能にしたものであって、その両端部を所定
の長さの非切れ目部位とし、前記長尺側及び短尺側側板
の上部に形成される折畳み線は、熱溶融により断面Ｖ字
形に形成されたものであることを特徴とするものであ
る。In order to achieve the above object, the invention according to claim 1 of the present invention is such that a polypropylene hollow core material is sandwiched between two polypropylene substrates. The bottom plate obtained by cutting the integrally formed polypropylene corrugated board, the long side plates that are vertically installed on both sides of the bottom plate and constitute the long side surfaces, and the front and rear openings of the long side plate. A pair of short side plates, also made of polypropylene corrugated board, which are arranged so as to intersect each other by 90 °, a frame edge that is fitted to the upper edges of both side plates to form a framework, and a corner part where each frame edge abuts. And four upper corner members that are joined together to connect the edge frames. Fold lines that serve as hinges are formed in the upper, lower, and central portions of each of the long side plates, and are folded in a V shape toward the bottom plate side. It was possible, A folding line is formed on the upper part of each short side plate so that it can be folded toward the inside of the edge frame, and the upper edge of each side plate is integrally formed into a box frame shape by the frame edge and corner material. In the folded box in which the folding lines are flattened in the edge frame by folding each folding line as a hinge in the assembled state, and the folding lines are used as hinges to form each side plate into a box shape, The fold line formed at the center of the shaku side plate is a fold line that allows the outer substrate to be folded and expanded as a hinge by leaving a slit in the longitudinal direction while leaving the outer substrate, and its both ends have a predetermined length. The fold line formed in the upper portion of the long side plate and the short side plate as a non-discontinuity portion is formed in a V-shaped cross section by heat fusion.
【００１２】従って、本発明では、中央の折畳み線の両
側を非切れ目部位とすることで、端部からの亀裂の発生
を防止でき、繰返し折畳み展開に伴うヒンジの劣化を防
止し、耐久性を向上できる。また、上部側折畳み線はＶ
字形の溝形状となっているため、開閉に際し、この部分
に異物が挟み込まれることがない。Therefore, in the present invention, by forming both sides of the central folding line as non-cutting portions, it is possible to prevent the occurrence of cracks from the ends, prevent the hinge from deteriorating due to repeated folding and unfolding, and improve durability. Can be improved. The upper folding line is V
Since it has a V-shaped groove, foreign matter is not caught in this portion when opening and closing.
【００１３】本発明のうち請求項２に記載の発明は、二
枚の基板間に中空コア材をサンドイッチ状に一体成形し
た段ボールをカットして得られた底板と、底板の両側に
折曲げにより立設され長尺側側面部を構成する長尺側側
板と、長尺側側板の前後開口部に配置される段ボール製
の一対の短尺側側板と、両側板の上縁に嵌合されて枠組
を構成する枠縁と、各枠縁が突合わされるコーナ部に嵌
合されて縁枠を連結する４つの上部コーナ材とを備え、
前記各長尺側側板には上部、下部及び中央にヒンジとな
る折畳み線が形成され、前記底面板側に向けてく字形に
折畳み可能としたものであり、前記各短尺側側板の上部
には折畳み線を形成し、縁枠の内側に向けて折畳み可能
としたものであり、前記各側板の上縁を前記枠縁及びコ
ーナ材により箱枠状に一体に組立てた状態で、各折畳み
線をヒンジとして折畳むことにより、縁枠内に平坦化さ
れ、かつ折畳み線をヒンジとして、各側板を立ち上げる
ことで箱形状に造形される折畳み箱において、前記長尺
側側板の中央に形成される折畳み線は、基板及びコアを
全通した全切断線と、これと連続する罫線とが交互に所
定ピッチで連続するものであることを特徴とするもので
ある。According to a second aspect of the present invention, a bottom plate obtained by cutting a corrugated cardboard in which a hollow core material is integrally molded in a sandwich shape between two substrates is cut, and by bending both sides of the bottom plate. A long side plate standing upright to form a long side face, a pair of short side plates made of corrugated board arranged in front and rear openings of the long side plate, and a frame fitted to the upper edges of both side plates. And four upper corner members that are fitted to the corner portions where the respective frame edges are abutted to connect the edge frames,
Folding lines serving as hinges are formed on the upper, lower, and central portions of each of the long side plates, so that they can be folded in a V shape toward the bottom plate side. A line is formed so that it can be folded toward the inside of the edge frame, and each fold line is hinged with the upper edge of each side plate being integrally assembled into a box frame shape by the frame edge and corner material. In a folding box that is flattened in the edge frame by folding as a box, and the folding line is used as a hinge to form each side plate into a box shape, a folding formed at the center of the long side plate. The line is characterized in that all cutting lines that pass completely through the substrate and the core and ruled lines that are continuous with the cutting lines are alternately continuous at a predetermined pitch.
【００１４】従って、本発明では、中央の折畳み線を、
全切断線と、これと連続する罫線とが交互に所定ピッチ
で連続するものとすることで、繰返し折畳み展開に伴う
ヒンジの劣化を防止し、耐久性を向上できる。Therefore, in the present invention, the central folding line is
By making all the cutting lines and the ruled lines that are continuous with each other alternately at a predetermined pitch, it is possible to prevent deterioration of the hinge due to repeated folding and unfolding, and improve the durability.
【００１５】本発明のうち請求項３に記載の発明は、前
記長尺側側板の両側部には箱端面より突出する短尺側側
板の噛み込み防止用タブを一体に形成したことにより、
重量物により、側板が外方に湾曲膨出したとしても噛み
込み防止用タブの存在により、これが戻る際の板同士の
噛み込みがなく、作業性が向上する。According to a third aspect of the present invention, tabs for preventing the short side plates protruding from the box end face are integrally formed on both sides of the long side plate.
Even if the side plate is curved and bulged outward due to the heavy object, the presence of the tab for preventing biting prevents the plates from being bitten when returning, and the workability is improved.
【００１６】本発明のうち請求項４に記載の発明は、前
記底板のコーナ部に嵌合されて各側板の立上げ形状を保
持する４つの下部コーナ材を備え、下部コーナ材の内側
に長尺側側板の内側に突出するストッパプレートを立ち
上げ形成し、このストッパプレートの内側に突起を突出
してなり、折畳み状態の短尺側側板を回動して立ち上げ
る際に、側板の端縁が前記突起を弾発的に乗越え、立上
げ状態で突起により戻り止めされることを特徴とするも
のである。従って、本発明では、外力による短尺側側板
の内側へのへたり込みがなく、十分な強度で立体造形を
維持できるとともに、折畳み時、或いは展開時には、突
起を乗越えて内側または外側に回動する瞬発的な力を加
えればよいため、折畳み展開作業も簡単である。The invention according to claim 4 of the present invention is provided with four lower corner members which are fitted into the corner portions of the bottom plate and hold the rising shape of each side plate. A stopper plate is formed so as to rise inside the shank side plate, and a protrusion is projected inside the stopper plate.When the short side plate in the folded state is rotated to stand up, the edge of the side plate is It is characterized in that it is elastically climbed over the projection and is detented by the projection in the standing state. Therefore, in the present invention, the short side plate is not set inward due to an external force, and the three-dimensional modeling can be maintained with sufficient strength, and at the time of folding or unfolding, the protrusion is overridden to rotate inward or outward. Folding and unfolding work is easy because it is only necessary to apply instantaneous power.
【００１７】本発明のうち請求項５に記載の発明は、前
記上部コーナ材のコーナ部下部に各側板の上部側端縁に
当接する延長部を一体に設けたことを特徴とするもので
ある。従って本発明では、立体造形時に上部側のコーナ
形状も正確に形状出しすることができる。The invention according to a fifth aspect of the present invention is characterized in that an extension portion, which abuts an upper side edge of each side plate, is integrally provided under a corner portion of the upper corner material. . Therefore, according to the present invention, the corner shape on the upper side can be accurately formed at the time of three-dimensional modeling.
【００１８】本発明のうち請求項６に記載の発明は、前
記長尺側側板の中央に形成される折畳み線をさけた位置
において、長尺側側板の端縁とこれと交差する短尺側側
板の端縁のそれぞれに互いに係合可能な係止部材を設け
たことを特徴とするものである。従って、本発明では、
短尺側側板の外方に対する湾曲膨出現象そのものがな
く、タブをなくすことができる。The invention according to claim 6 of the present invention is the short side plate which intersects with the edge of the long side plate at a position avoiding the folding line formed in the center of the long side plate. It is characterized in that a locking member capable of engaging with each other is provided on each of the end edges of the. Therefore, in the present invention,
There is no bending bulge phenomenon to the outside of the short side plate, and the tab can be eliminated.
【００１９】本発明のうち請求項７に記載の発明では、
前記底板の端縁に設けた下部枠縁の外端縁に立ち上げ部
を立設し、この立上げ部の内側に係合部を形成するとと
もに、下部枠縁の板面に戻り止め用の突起を突設する一
方、前記短尺側側板の下部枠縁の下端縁外側に前記凹部
に鈎形係合する係合部を形成したものであり、製箱状態
で前記短尺側側板の下部枠縁が前記突起を弾抜的に乗越
えて前記係合部同士が鈎形係合するとともに、前記突起
により戻り止めされることを特徴とする。従って、本発
明では、請求項３と同様な効果が得られ、また下部コー
ナ材も省略できる。In the invention according to claim 7 of the present invention,
A standing portion is provided upright on the outer edge of the lower frame edge provided on the edge of the bottom plate, and an engaging portion is formed inside the rising portion, and a detent is provided on the plate surface of the lower frame edge. On the outside of the lower edge of the lower frame edge of the short side plate while forming the protrusion, an engaging portion that engages in a hook shape with the recess is formed, and the lower frame edge of the short side plate in the box-making state. Is elastically crossed over the protrusion to engage the engaging portions with each other in a hook shape, and is detented by the protrusion. Therefore, in the present invention, the same effect as in claim 3 can be obtained, and the lower corner material can be omitted.
【００２０】本発明のうち請求項８に記載の発明は、長
尺側側板の折畳み状態で両折畳み面を離接可能に接合す
る手段を設けたことにより、折畳み状態での折畳み線位
置のヒンジ抵抗による戻りがなく、平担性を保持でき
る。In the invention according to claim 8 of the present invention, the hinge at the folding line position in the folded state is provided by providing means for joining both folding surfaces so as to be separable from each other when the long side plate is folded. There is no return due to resistance and flatness can be maintained.
【００２１】[0021]
【発明の実施の形態】以下、本発明の好ましい実施の形
態につき、添付図面を参照して詳細に説明する。図１〜
図３は本発明の第一実施形態を示し、このうち図１，図
２は、本発明に係る折畳み箱の部品構成を示す分解斜視
図であり、図３は同折畳み箱の組立状態を示す斜視図で
ある。Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Figure 1
FIG. 3 shows a first embodiment of the present invention, of which FIG. 1 and FIG. 2 are exploded perspective views showing a component structure of a folding box according to the present invention, and FIG. 3 shows an assembled state of the folding box. It is a perspective view.
【００２２】この折畳み箱を構成する全部品は、廃棄時
のダイオキシンの発生防止や、リサイクル等を考慮して
ポリプロピレン（以下、ＰＰと略記する）製の成形体か
らなっている。このうち、底板１、長尺側側板２、及び
短尺側側板３は、ＰＰ製の二枚の基板間に同じくＰＰ製
の中空コアをサンドイッチ状に一体成形したプラスチッ
ク製の段ボールからなっており、長尺側側板２は底板１
の両側に折曲げにより立ち上げ成形される。なお、図１
において、底板１及び側板２，３に形成された線の集合
はコアの形成方向を示すものであり、側板２，３を立ち
上げた状態で、強度が発現されるコア方向にカットされ
ている。All parts constituting this folding box are formed of polypropylene (hereinafter abbreviated as PP) molded body in consideration of prevention of generation of dioxin at the time of disposal, recycling and the like. Of these, the bottom plate 1, the long side plate 2 and the short side plate 3 are made of plastic corrugated cardboard integrally formed in a sandwich shape with a PP hollow core between two PP substrates. The long side plate 2 is the bottom plate 1
It is formed by bending up on both sides of. Note that FIG.
In, the set of lines formed on the bottom plate 1 and the side plates 2 and 3 indicates the core forming direction, and the side plates 2 and 3 are cut in the core direction in which strength is exhibited in a state of standing up. .
【００２３】また、上部縁枠４，５及び上部コーナ材
６、底板１の開口端面を縁取る縁枠７、底板１の隅角部
を補強する下部コーナ材８、短尺側側板３に取付けられ
る把手枠９及び短尺側側板３の下部縁枠１０はＰＰ製の
押出しまたは射出成形体から構成される。Further, the upper edge frames 4 and 5 and the upper corner material 6, the edge frame 7 which borders the open end surface of the bottom plate 1, the lower corner material 8 which reinforces the corners of the bottom plate 1, and the short side plate 3 are attached. The handle frame 9 and the lower edge frame 10 of the short side plate 3 are made of PP extruded or injection molded body.
【００２４】以上の各部材の組立手順としては、図２に
示すように、側板２の上部に上部縁枠４を嵌合し、また
両側板２を底板１から折曲げて立上げ、下部コーナ材８
を両者の各角部に超音波溶接等によって一体に組付け、
縁枠７を底板の端面に嵌合し、超音波溶着等によって各
部を接続する。同様に、短尺側側板３の上下縁にも上下
縁枠５，１０を嵌合し、また把手孔に把手枠９を取付
け、最終的に上部コーナ材６を上部縁枠４，５の接合端
に嵌合し、超音波溶着等をすることで、図３に示すよう
に、上部開口された折畳み箱が得られる。なお、図中、
小さな円が描かれた部分は超音波溶着によって穿たれた
孔である。図４はその一部を示す側断面図である。As shown in FIG. 2, the above-mentioned members are assembled by fitting the upper edge frame 4 to the upper part of the side plate 2 and bending the both side plates 2 from the bottom plate 1 to stand them up. Material 8
Assemble integrally to each corner of both by ultrasonic welding etc.
The edge frame 7 is fitted to the end surface of the bottom plate, and each part is connected by ultrasonic welding or the like. Similarly, the upper and lower edge frames 5 and 10 are fitted also to the upper and lower edges of the short side plate 3, the handle frame 9 is attached to the handle hole, and finally the upper corner member 6 is joined to the upper edge frames 4 and 5. Then, as shown in FIG. 3, a folding box having an upper opening can be obtained by fitting it to the base plate and performing ultrasonic welding or the like. In the figure,
The part with a small circle is a hole made by ultrasonic welding. FIG. 4 is a side sectional view showing a part thereof.
【００２５】以上において、長尺側側板２にはその長手
方向に沿って上下３つの折畳み線１１，１２，１４が形
成され、各折畳み線を介して内側にく字形の折畳みが可
能となっている。このうち、下部側折畳み線１１は、図
５（ａ）に示すように、外側の基板ａを残して内側の基
板ｂ及びコアｃに直交してその長手方向に切れ目ｄを入
れること（半切り）により外側の基板をヒンジとして折
畳み展開可能にしたものである。In the above, the long side plate 2 is formed with the upper and lower three folding lines 11, 12, and 14 along the longitudinal direction thereof, and it is possible to fold an inward V-shape through each folding line. There is. Of these, as shown in FIG. 5A, the lower folding line 11 is orthogonal to the inner substrate b and the core c except for the outer substrate a, and a cut d is formed in the longitudinal direction thereof (half cut). ), The outer substrate can be folded and expanded as a hinge.
【００２６】これに対し、中央の折畳み線１２は、前記
と同様に一般部においては図５（ａ）に示すように、外
側の基板ａを残して内側の基板ｂ及びコアｃに切れ目を
入れること（半切り）により外側の基板をヒンジとして
折畳み展開可能にしたものであるが、（ｂ），（ｃ）に
示すように、その両端部を非切れ目部分ｅとし、切れ目
ｄに沿ってコアｃの折曲げを行うようにしている。これ
は、ヒンジ特性が高いＰＰを用いたとしても、折曲げを
繰返すことで切れ目ｄの部分が裂けるためで、非切れ目
部分ｅを両端に形成することで、繰返し折曲げ性を向上
させている。なお、この部分における非切れ目部分ｅの
長さは、折曲げ作業性と裂け防止との兼合いで、３mm以
上１５mm以下とすることが好ましい。On the other hand, the central folding line 12 is notched in the inner substrate b and the core c while leaving the outer substrate a as shown in FIG. By this (half cut), the outer substrate is folded and expandable as a hinge. However, as shown in (b) and (c), the both ends are non-cut portions e, and the core is formed along the cut d. The c is bent. This is because even if PP having a high hinge characteristic is used, the part of the cut d is torn by repeating the bending, and thus the non-cut part e is formed at both ends to improve the repetitive bendability. . In addition, the length of the non-cut portion e in this portion is preferably 3 mm or more and 15 mm or less in terms of both bending workability and tear prevention.
【００２７】また、上部側折畳み線１４は、熱溶融によ
って断面Ｖ字形に形成されている。これは、例えば、図
６（ａ），（ｂ）に示すように、側板２の上縁に上部縁
枠４を嵌合し、縁枠４を含むヒンジ形成位置に先端部Ｖ
形をした熱刃１５を押し当て、断面Ｖ字形の折曲げ線１
４を形成するものである。この場合は、図７（ａ）に示
すように直立した状態で外側が断面Ｖ字形溝形状となっ
ているため、すべての折畳み線が半切りであるものと比
較して、繰り返しの曲げに対する耐久性が向上するとと
もに、この位置に異物が挟み込まれることがない。な
お、上述した下部側折畳み線１１については、図５
（ａ）に示されるように半切りとした例を示したが、図
６（ａ），（ｂ）及び図７（ａ），（ｂ）に示されるよ
うに熱溶融によって断面Ｖ字形に形成することが好まし
い。この場合、折畳み部分に中空部が露出しない結果、
ここからほこり等が中空部に侵入するのを阻止できるか
らである。The upper folding line 14 is formed in a V-shaped cross section by heat melting. For example, as shown in FIGS. 6A and 6B, the upper edge frame 4 is fitted to the upper edge of the side plate 2 and the tip portion V is formed at the hinge forming position including the edge frame 4.
Bending line 1 with a V-shaped cross section
4 is formed. In this case, as shown in Fig. 7 (a), since the outside has a V-shaped groove in cross section in an upright state, durability against repeated bending is greater than that in which all folding lines are half cut. As a result, the foreign matter is not caught in this position. Regarding the lower folding line 11 described above, FIG.
Although an example of half-cutting is shown as shown in (a), it is formed into a V-shaped cross section by heat melting as shown in FIGS. 6 (a), (b) and FIGS. 7 (a), (b). Preferably. In this case, as a result of not exposing the hollow part in the folded part,
This is because dust and the like can be prevented from entering the hollow portion from here.
【００２８】また、短尺側側板３の上部であって、上部
縁枠５の直下に折畳み線１６が形成され、枠縁内側への
折畳みを可能としている。この折畳み線１６もＶ字形ヒ
ンジとなっており、同じくこの部位における異物の挟み
込みを防止している。A fold line 16 is formed at the upper portion of the short side plate 3 and directly below the upper edge frame 5 to enable folding to the inside of the frame edge. The folding line 16 is also a V-shaped hinge, and similarly prevents foreign matter from being caught in this portion.
【００２９】さらに、長尺側側板２の長手方向両側に
は、その端縁からやや突出した一対のタブ１７が形成さ
れている。このタブ１７は、特に図４に想像線で示すよ
うに、短尺側側板３が長尺側側板２の端面外方に膨出
し、これが戻る際に側板２の端縁が側板３の内側に入り
込むことによる組上げ時の強度低下を防止するために設
けられている。Further, a pair of tabs 17 slightly projecting from the edge of the long side plate 2 are formed on both sides in the longitudinal direction of the long side plate 2. As shown in phantom lines in FIG. 4, this tab 17 is such that the short side plate 3 bulges outward from the end face of the long side plate 2, and when this returns, the edge of the side plate 2 enters the inside of the side plate 3. It is provided in order to prevent the strength from being lowered during assembly.
【００３０】また、下部コーナ材８の長尺側側板２の外
部に配置される壁部の内側には図１に白抜き矢印ａで拡
大して示すように、平板状のストッパプレート１８が長
尺側側板２に沿って起立した状態に一体に立設され、こ
れに対し、底板１の両側面にはこのプレート１８を受入
れるための切欠１ａが形成されている（白抜き矢印ｂで
拡大して示すように、ストッパプレート１８は底板にも
沿った断面Ｌ字状とすることもできる）。このストッパ
プレート１８は、短尺側側板３を立てた状態における内
側への戻りを防止するもので、外側に回動した状態で側
板３の端縁がストッパプレート１８の端面に突設された
突起１８ａを弾発的に乗越えることで、図４に示すよう
に、戻り止めされ、立体形状に保持される。Further, a flat plate-like stopper plate 18 is provided inside the wall portion of the lower corner member 8 which is disposed outside the long side plate 2 as shown by an enlarged arrow a in FIG. It is erected integrally along the shaku side plate 2 while standing upright, while notches 1a for receiving the plate 18 are formed on both side surfaces of the bottom plate 1 (enlarged by a white arrow b). The stopper plate 18 can also have an L-shaped cross section along the bottom plate, as shown in FIG. The stopper plate 18 prevents the short side plate 3 from returning to the inside when the short side plate 3 is in an upright state. When the side plate 3 is rotated outward, the end edge of the side plate 3 is provided on the end surface of the stopper plate 18 so as to project. By elastically crossing over, as shown in FIG. 4, it is detented and held in a three-dimensional shape.
【００３１】さらに、各上部側コーナ材６のコーナ部下
部には下部側に伸びて折畳み線１４の外方を覆う延長部
６ａが形成され、この延長部６ａにより、両側板２，３
の上部側における外方への回動を規制し、立体造形され
た状態での箱の形状を正確に形づけると同時にこの部位
における保形性も確保している。Further, an extension portion 6a extending downward and covering the outside of the folding line 14 is formed at a lower portion of the corner portion of each upper side corner member 6, and the extension portions 6a form the side plates 2, 3 respectively.
The outer rotation of the upper side of the box is restricted to accurately shape the shape of the box in a three-dimensionally molded state, and at the same time, the shape retention in this part is secured.
【００３２】次に、以上の構成の折畳み箱の折畳み手順
を図８を用いて説明する。図３に示す立体造形状態か
ら、先ず（ａ）に示すように、短尺側側板３を折畳み線
１６をヒンジとして上部側枠形状の内側に向けて折畳
む。この操作は、ある程度強い力で側板３を内側に押す
ことにより、形状保持のための突起１８ａを乗越えて内
側に折畳まれる。なお、現場での作業では蹴り込みなど
によって行われることも想定される。そして、この状態
では、長尺側側板２を直線状に立設する機能は失われる
ため、（ｂ）に示すように、側面を内側に向けて押し付
けることにより、各折畳み線１１，１２，１４をヒンジ
として内側にく字形をなして折畳まれ、最終的に（ｃ）
に示すように上から押圧すると平坦状になり、この状態
で段積み積層することで、減容化した状態での保管が可
能となる。（ｃ）の状態から、箱状に造形するには以上
とは逆の手順で行えばよく、前記と同じくその作業も簡
単である。Next, the folding procedure of the folding box having the above construction will be described with reference to FIG. From the three-dimensional modeling state shown in FIG. 3, first, as shown in (a), the short side plate 3 is folded toward the inside of the upper frame shape using the folding line 16 as a hinge. In this operation, the side plate 3 is pushed inward with a strong force to some extent, and the protrusion 18a for maintaining the shape is overcome to be folded inward. In addition, it is expected that the work at the site will be performed by kicking. In this state, the function of standing up the long side plate 2 in a straight line is lost. Therefore, as shown in (b), the fold lines 11, 12, 14 are pressed by pushing the side faces inward. Is folded inward as a hinge, and finally (c)
As shown in (1), it becomes flat when pressed from above, and by stacking and stacking in this state, it becomes possible to store in a reduced volume state. From the state of (c), in order to form a box-like shape, the procedure reverse to the above may be performed, and the work is similar to the above.
【００３３】図９は、本発明の第二実施形態を示す。こ
の実施形態においては、噛み込み防止用のタブ１７が長
尺側側板２の両端部中央位置一ヶ所に突出形成されてい
る以外は前記実施形態と同様である。本実施形態では、
短尺側側板３が最も外方に膨出する中央位置に設けられ
ているので、噛み込み防止上有利であるとともに、タブ
形成位置の中央に設けられている折畳み線１２における
非切れ目部位をタブ形成位置とすれば良いので、折畳み
時におけるヒンジ抵抗も削減できる。FIG. 9 shows a second embodiment of the present invention. This embodiment is the same as the above-mentioned embodiment except that the tab 17 for preventing biting is formed to project at one central position on both ends of the long side plate 2. In this embodiment,
Since the short side plate 3 is provided at the central position where it bulges outward most, it is advantageous in preventing biting, and the non-interrupted portion of the fold line 12 provided at the center of the tab forming position is tab-formed. Since it may be located at the position, the hinge resistance at the time of folding can be reduced.
【００３４】図１０は、本発明の第三実施形態を示す。
この実施形態においては、前記第二実施形態と同じく中
央に突設されたタブ１７の上部位置において、長尺側側
板２及び短尺側側板３の交差位置で互いに係合する係止
片２０を超音波溶着により取付けたこと、及び下部コー
ナ材８のない点が前記各実施形態と異なるものである。FIG. 10 shows a third embodiment of the present invention.
In this embodiment, similarly to the second embodiment, at the upper position of the tab 17 protruding in the center, the locking piece 20 that engages with each other at the intersecting position of the long side plate 2 and the short side plate 3 is superposed. It differs from the above-described embodiments in that it is attached by sonic welding and that the lower corner material 8 is not provided.
【００３５】両係止片２０はいずれもチャンネル状の押
出成形体または射出成形体からなるもので、白抜き矢印
ｃで拡大して示すように前記各側板２，３を挟み込んだ
状態で固定されるベース２０ａと、ベース２０ａの側面
に一体化された断面コ字型の鈎状片２０ｂを備え、製箱
状態では、両鈎状片２０ｂ同士が係合することで短尺側
側板３の膨出を防止する構造としている。なお、短尺側
側板３の両端縁と係止片２０の端縁が同一線上となるよ
う、短尺側側板３に対する取付け位置に切り欠きを形成
し、この位置に係止片２０を取付けている。Both of the locking pieces 20 are made of a channel-shaped extrusion molded body or an injection molded body, and are fixed in a state in which the side plates 2 and 3 are sandwiched as shown by an enlargement of a blank arrow c. A base 20a and a hook-shaped piece 20b having a U-shaped cross section integrated on the side surface of the base 20a. In the box-making state, the hook-shaped pieces 20b are engaged with each other so that the short side plate 3 bulges out. The structure is designed to prevent In addition, a notch is formed at a mounting position with respect to the short side plate 3 so that both end edges of the short side plate 3 and an end edge of the locking piece 20 are on the same line, and the locking piece 20 is mounted at this position.
【００３６】また、底板１の下部枠縁２１と短尺側側板
３の下部枠縁２２との係合により、製箱状態に保持でき
るようにしている。すなわち白抜き矢印ｄに拡大して示
すように、底板１の下部枠縁２１の端縁に設けた立上げ
部２１ａの内側には凹部２１ｂが形成され、更に下部枠
縁２１の板面にはその長手方向に沿って戻り止め用の突
起２１ｃが突出形成されている。これに対し、短尺側側
板３の下部枠縁２２の下縁外側には長手方向に沿って前
記凹部２１ｂに鈎形係合する凹部２２ａが形成されてい
る。Further, the lower frame edge 21 of the bottom plate 1 and the lower frame edge 22 of the short side plate 3 are engaged with each other so that the box-making state can be maintained. That is, as enlargedly shown by a white arrow d, a recess 21b is formed inside the rising portion 21a provided at the edge of the lower frame edge 21 of the bottom plate 1, and the plate surface of the lower frame edge 21 is further formed. A detent projection 21c is formed along the longitudinal direction. On the other hand, on the outer side of the lower edge of the lower frame edge 22 of the short side plate 3, a recess 22a is formed along the longitudinal direction so as to be hooked with the recess 21b.
【００３７】従って、製箱時において、短尺側側板３の
下部枠縁２２の下端が図中想像線で示すように回動する
と突起２１ｃに突き当るが、この突起２１ｂを弾発的に
乗越えることで凹部２１ｂ，２２ａ同士が鈎形に係合
し、それ以上の回動が規制される。また、この側板３を
折畳み方向に押戻そうとする外力が加わった場合には、
枠縁２２の下縁が前記突起２１ａに度当りし、戻りが防
止される。なお、下部コーナ材８のない状態でも下部枠
縁２１の立上げ部２１ａの端縁が長尺側側板２の下部側
に当接することで、直角位置決めがなされ、形状保持性
を維持することができる。Therefore, during box making, when the lower end of the lower frame edge 22 of the short side plate 3 pivots as shown by the imaginary line in the figure, it abuts the projection 21c, but surmounts this projection 21b elastically. As a result, the recesses 21b and 22a are engaged with each other in a hook shape, and further rotation is restricted. When an external force is applied to push back the side plate 3 in the folding direction,
The lower edge of the frame edge 22 abuts against the protrusion 21a, and the return is prevented. Even when the lower corner member 8 is not provided, the edge of the rising portion 21a of the lower frame edge 21 abuts the lower side of the long side plate 2 to perform right-angle positioning and maintain shape retention. it can.
【００３８】次に、図１１，１２は本発明の第四実施形
態を示し、図１１は分解図、図１２は組立図である。本
実施形態では、タブ１７が省略されている以外は第三実
施形態と同様であるので、符号のみによりその説明は省
略する。但し、本実施形態において特筆すべきことは、
前記係止片２０によって、製箱状態では長尺側側板２と
短尺側側板３の交差部は強固に係合し、互いの膨出及び
これに伴う不具合は解消されるため、タブそのものも省
略することが可能であることに基づくもので、コーナ部
の形状が直線状に簡素化し、外観上も好ましいものとな
る。Next, FIGS. 11 and 12 show a fourth embodiment of the present invention, FIG. 11 is an exploded view, and FIG. 12 is an assembly view. The present embodiment is the same as the third embodiment except that the tab 17 is omitted, and therefore the description thereof will be omitted only with reference numerals. However, what is noteworthy in this embodiment is that
The tab 20 is also omitted because the locking piece 20 firmly engages the intersecting portion of the long side plate 2 and the short side plate 3 in the box-making state and bulges each other and troubles associated therewith are eliminated. It is possible to do so, and the shape of the corner portion is simplified into a linear shape, which is preferable in terms of appearance.
【００３９】次に、図１３，１４は第四実施形態を更に
発展させた第五実施形態を示し、本実施形態では係止片
２０を各コーナ部に付上下二つ設けたことにより、膨出
現象を更に確実に防止する点、並びに、図１３の一部に
拡大して示すように、長尺側側板３に設けられた上下の
係止片２０のベース２０ａに互いに嵌め合い係合する雌
雄の樹脂ファスナ３０，３１を設けた点が前記実施形態
とは異なる。Next, FIGS. 13 and 14 show a fifth embodiment, which is a further development of the fourth embodiment. In this embodiment, two locking pieces 20 are provided at each corner so that two corners are provided, one above the other. The point of further reliably preventing the protrusion phenomenon, and as shown in an enlarged view in a part of FIG. 13, the base 20a of the upper and lower locking pieces 20 provided on the long side plate 3 are fitted and engaged with each other. The difference from the above-described embodiment is that male and female resin fasteners 30 and 31 are provided.
【００４０】すなわち、折畳み状態で長尺側側板２は、
図１４に示すように折畳み先２をヒンジとして内側に向
けてく字形に折曲げられることになるが（同図では、厚
さ等を誇張して表現している）、このヒンジ位置におけ
る反発弾性により、常時元の状態に戻る力が加わってお
り、このままでは浮き上がりが生じて折畳み時における
平担性が保てない。折畳み線として、半切りではなく、
熱溶融を選択した場合には、箱を折り畳んだときの反力
がなおさら大きい。このような場合、折畳み時の箱につ
いて、収納性に難が生じることが懸念される。そこで、
折畳み時に最も接近する位置である係止片２０のベース
２０ａ位置にそれぞれ樹脂製の雌雄ファスナ３０，３１
を設け、ファスナ同士を係合（嵌め合い等）することで
折畳み形状を強制的に保ち、これによって箱の収納性を
確保するものである。That is, in the folded state, the long side plate 2 is
As shown in FIG. 14, the folding tip 2 serves as a hinge and is bent inward toward the inside (in the same figure, the thickness and the like are exaggerated), but due to the impact resilience at this hinge position. , The force that always returns to the original state is applied, and if it remains as it is, it will not be able to maintain its flatness when folded. As a folding line, not half cut
When heat melting is selected, the reaction force when the box is folded is even greater. In such a case, there is a concern that the foldable box may have difficulty in storing. Therefore,
At the base 20a position of the locking piece 20 which is the closest position at the time of folding, resin male and female fasteners 30, 31 are respectively provided.
Is provided and the fasteners are forcibly maintained in a folded shape by engaging (fitting, etc.) the fasteners with each other, and thereby the storability of the box is ensured.
【００４１】なお、本実施形態では、接合手段として樹
脂ファスナを用いたが、雌雄の面ファスナにより折畳み
保持できる構造とすることができ、また長尺側側板２に
対する取付け位置も、折畳み線１２を挟む他の対向位置
に配置することができる。In this embodiment, the resin fastener is used as the joining means, but it can be folded and held by the male and female hook-and-loop fasteners, and the folding line 12 can be attached to the long side plate 2. It can be arranged at other opposing positions to be sandwiched.
【００４２】以上における折畳み線の形成方法として
は、図５〜図７に示す切れ目あるいは、熱圧着による形
成方法のほか、図１５（ａ），（ｂ）に示す方法があ
る。この方法では、折畳み線に沿うＤ１部分を基板ａ，
ｂ及びコアｃを全て切断して全通した全切断線とし、そ
の間のＤ２部分を折り目を付与しやすくするための罫線
とし、これが交互に所定ピッチ及び長さで連続させるこ
とにより、恰も破線が連続する形の折畳み線を形成する
ものである（なお、同図では、本発明の理解を助けるた
めに、全切断線Ｄ１の幅寸法を誇張して描いているが、
実際は線状のものである）。この場合、全切断線Ｄ１と
罫線Ｄ２の長さ比（例えば、３cmづつ）に応じて、ヒン
ジの反発弾性が異なり、Ｄ１＞Ｄ２の場合には反発弾性
が小さい代りに、耐久性に乏しい。その逆である場合に
は反発弾性が高いが、耐久性に富むものとなる。また、
上記罫線については通常の加圧による罫線の他、加熱溶
融による熱罫線、外側の基板を残して長手方向に切れ目
を入れて形成される半切り罫線などが選択できる。従っ
て、本実施形態では、用途に応じてヒンジ特性の選択幅
が広がるものとなる。As a method of forming the folding line in the above, there is a method shown in FIGS. 15 (a) and 15 (b) in addition to the method of forming by the cuts or thermocompression shown in FIGS. In this method, the D1 portion along the fold line is placed on the substrate a,
b and the core c are all cut to form a full cut line, and the D2 portion between them is used as a ruled line for facilitating a crease. By alternately making this a predetermined pitch and length, a dashed line is also drawn. In order to facilitate understanding of the present invention, the width dimension of the entire cutting line D1 is exaggerated in order to form a continuous folding line.
Actually it is linear). In this case, the impact resilience of the hinge differs depending on the length ratio (for example, every 3 cm) between the total cutting line D1 and the ruled line D2, and when D1> D2, the impact resilience is small but the durability is poor. In the opposite case, the impact resilience is high, but the durability is high. Also,
As the ruled line, a regular ruled line by heat, a thermal ruled line by heating and melting, a half-cut ruled line formed by making a cut in the longitudinal direction while leaving the outer substrate, and the like can be selected. Therefore, in the present embodiment, the selection range of hinge characteristics is widened according to the application.
【００４３】なお、以上の各実施形態においては、モデ
ル的な箱形状としているが、その大きさや、縦横比、深
さなどは、要求される寸法に応じて、折畳み寸法などの
幾何的寸法が可能な範囲で種々変更可能であることは勿
論である。In each of the above embodiments, the box shape is modeled, but the size, aspect ratio, depth, etc. are geometrical dimensions such as folding dimensions depending on the required dimensions. Needless to say, various changes can be made within a possible range.
【００４４】[0044]
【発明の効果】以上の説明により明らかなように、本発
明による折畳み箱によれば、構造が簡単で部品点数が少
なく、しかも容易に折畳み及び立上げ展開でき、組上げ
た状態ではきわめて堅牢となる利点がある。As is apparent from the above description, according to the folding box of the present invention, the structure is simple, the number of parts is small, and the folding box can be folded up and deployed easily, and is extremely robust in the assembled state. There are advantages.
【図１】本発明の第一実施形態による折畳み箱の部品配
置を示す分解斜視図である。FIG. 1 is an exploded perspective view showing an arrangement of parts of a folding box according to a first embodiment of the present invention.
【図２】同取付形状を示す分解斜視図である。FIG. 2 is an exploded perspective view showing the same mounting shape.
【図３】同組立完成状態を示す斜視図である。FIG. 3 is a perspective view showing a completed state of the assembly.
【図４】同組立状態における部分側断面図である。FIG. 4 is a partial side sectional view in the assembled state.
【図５】（ａ）〜（ｃ）折畳み線の切れ目形成位置と、
非形成位置及びその配置を示す斜視図である。FIG. 5 (a) to (c) the break forming position of the folding line,
It is a perspective view which shows a non-forming position and its arrangement.
【図６】（ａ），（ｂ）は溶融による折畳み線形成手順
を示す説明図である。6 (a) and 6 (b) are explanatory views showing a folding line forming procedure by melting.
【図７】同折曲げ線をヒンジとした開閉形状を示す部分
断面図である。FIG. 7 is a partial cross-sectional view showing an open / close shape in which the same bending line is used as a hinge.
【図８】（ａ）〜（ｃ）は折畳み箱の折畳み手順を示す
斜視図である。8A to 8C are perspective views showing a folding procedure of the folding box.
【図９】本発明の第二実施形態における折畳み箱の立体
造形状態を示す斜視図である。FIG. 9 is a perspective view showing a three-dimensional modeling state of the folding box according to the second embodiment of the present invention.
【図１０】本発明の第三実施形態における折畳み箱の立
体造形状態を示す斜視図である。FIG. 10 is a perspective view showing a three-dimensional modeling state of the folding box according to the third embodiment of the present invention.
【図１１】本発明の第四実施形態による折畳み箱の部品
配置を示す分解斜視図である。FIG. 11 is an exploded perspective view showing an arrangement of parts of a folding box according to a fourth embodiment of the present invention.
【図１２】同立体造形状態を示す斜視図である。FIG. 12 is a perspective view showing the same three-dimensional modeling state.
【図１３】本発明の第五実施形態による折畳み箱の立体
造形状態を示す斜視図である。FIG. 13 is a perspective view showing a three-dimensional modeling state of a folding box according to a fifth embodiment of the present invention.
【図１４】同折畳み箱を折畳んだ状態の半断面図であ
る。FIG. 14 is a half sectional view of the folding box in a folded state.
【図１５】折畳み線の形成方法の他の実施形態を示す説
明図である。FIG. 15 is an explanatory view showing another embodiment of the folding line forming method.
１ 底板
２ 長尺側側板
３ 短尺側側板
４，５ 上部枠縁
６ 上部コーナ材
６ａ 下部延長片
７ 底板枠縁
８ 下部コーナ材
１０ 下部枠縁
１１，１２，１４，１６ 折畳み線（１４，１６ 熱溶
融Ｖ形溝）
１７ 噛み込み防止用タブ
１８ ストッパプレート
１８ａ 突起
２０ 係止片
２０ｂ 鈎状片
２１ 底板側下部枠縁
２１ａ 立上げ部
２１ｂ 凹部
２１ｃ 戻り止め用突起
２２ 短尺側側板の下部枠縁
２２ａ 凹部
３０，３１ 樹脂ファスナ（接合手段）
ａ，ｂ 基板
ｃ コア
ｄ 切れ目
ｅ 非切れ目部分
Ｄ１ 全切断線
Ｄ２ 罫線1 Bottom plate 2 Long side plate 3 Short side plate 4, 5 Upper frame edge 6 Upper corner material 6a Lower extension piece 7 Bottom plate frame edge 8 Lower corner material 10 Lower frame edge 11, 12, 14, 16 Folding line (14, 16) (Heat-melt V-shaped groove) 17 Biting prevention tab 18 Stopper plate 18a Protrusion 20 Locking piece 20b Hook-shaped piece 21 Bottom plate side lower frame edge 21a Rise portion 21b Recess 21c Detent protrusion 22 Short side side plate lower frame edge 22a recesses 30 and 31 resin fasteners (joining means) a and b substrate c core d cut e non-cut portion D1 total cutting line D2 ruled line
───────────────────────────────────────────────────── フロントページの続き (72)発明者 生野 浩司 愛知県名古屋市中区錦２−15−22 宇部日 東化成株式会社内 (72)発明者 木村 明弘 兵庫県加古郡稲美町六分一字百丁歩1362番 66 株式会社木村製作所内 (72)発明者 中山 喬夫 大阪府大阪市淀区西中島４−10−19 中山 産業株式会社内 Ｆターム(参考） 3E061 AA05 AB12 CA02 CA04 DB11 DB17 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Koji Ikuno 2-15-22 Nishiki, Naka-ku, Nagoya-shi, Aichi Ube day Tokasei Co., Ltd. (72) Inventor Akihiro Kimura 1362 Hyakuchou, 1-in-1, Inami-cho, Kako-gun, Hyogo Prefecture 66 Kimura Manufacturing Co., Ltd. (72) Inventor Takao Nakayama Osaka Prefecture Osaka City Yodo-ku Nishinakajima 4-10-19 Nakayama Sangyo Co., Ltd. F-term (reference) 3E061 AA05 AB12 CA02 CA04 DB11 DB17
Claims (8)
チ状に一体成形した段ボールをカットして得られた底板
と、底板の両側に折曲げにより立設され長尺側側面部を
構成する長尺側側板と、長尺側側板の前後開口部に配置
される段ボール製の一対の短尺側側板と、両側板の上縁
に嵌合されて枠組を構成する枠縁と、各枠縁が突合わさ
れるコーナ部に嵌合されて縁枠を連結する４つの上部コ
ーナ材とを備え、 前記各長尺側側板には上部、下部及び中央にヒンジとな
る折畳み線が形成され、前記底面板側に向けてく字形に
折畳み可能としたものであり、前記各短尺側側板の上部
には折畳み線を形成し、縁枠の内側に向けて折畳み可能
としたものであり、前記各側板の上縁を前記枠縁及びコ
ーナ材により箱枠状に一体に組立てた状態で、各折畳み
線をヒンジとして折畳むことにより、縁枠内に平坦化さ
れ、かつ折畳み線をヒンジとして、各側板を立ち上げる
ことで箱形状に造形される折畳み箱において、 前記長尺側側板の中央に形成される折畳み線は、外側の
基板を残して長手方向に切れ目を入れることにより外側
の基板をヒンジとして折畳み展開可能にしたものであっ
て、その両端部を所定の長さの非切れ目部位とし、 前記長尺側及び短尺側側板の上部に形成される折畳み線
は、熱溶融により断面Ｖ字形に形成されたものであるこ
とを特徴とする折畳み箱。1. A bottom plate obtained by cutting a corrugated cardboard in which a hollow core material is integrally molded in a sandwich shape between two substrates, and a long side surface portion formed by bending on both sides of the bottom plate. The long side plates, the pair of short side plates made of corrugated board arranged in the front and rear openings of the long side plates, the frame edges fitted to the upper edges of both side plates to form a frame, and each frame edge Four upper corner members that are fitted to the butted corner portions to connect the edge frames, and fold lines serving as hinges are formed in the upper, lower and center parts of each of the long side plates, and the bottom plate It is possible to fold in a V shape toward the side, a folding line is formed at the upper part of each of the short side plates, and it is possible to fold toward the inside of the edge frame. With each of the frame edges and corners assembled in a box frame shape, In the folding box that is flattened in the edge frame by folding as a hinge and is shaped into a box by raising each side plate with the folding line as the hinge, the folding box is formed in the center of the long side plate. The folding line is a folding line that allows the outer substrate to be folded and expanded as a hinge by leaving a cut in the longitudinal direction while leaving the outer substrate, and both end portions thereof are non-cut portions having a predetermined length, The folding box, wherein the folding lines formed on the upper side of the long side plate and the short side plate are formed in a V-shaped cross section by heat melting.
チ状に一体成形した段ボールをカットして得られた底板
と、底板の両側に折曲げにより立設され長尺側側面部を
構成する長尺側側板と、長尺側側板の前後開口部に配置
される段ボール製の一対の短尺側側板と、両側板の上縁
に嵌合されて枠組を構成する枠縁と、各枠縁が突合わさ
れるコーナ部に嵌合されて縁枠を連結する４つの上部コ
ーナ材とを備え、 前記各長尺側側板には上部、下部及び中央にヒンジとな
る折畳み線が形成され、前記底面板側に向けてく字形に
折畳み可能としたものであり、前記各短尺側側板の上部
には折畳み線を形成し、縁枠の内側に向けて折畳み可能
としたものであり、前記各側板の上縁を前記枠縁及びコ
ーナ材により箱枠状に一体に組立てた状態で、各折畳み
線をヒンジとして折畳むことにより、縁枠内に平坦化さ
れ、かつ折畳み線をヒンジとして、各側板を立ち上げる
ことで箱形状に造形される折畳み箱において、 前記長尺側側板の中央に形成される折畳み線は、基板及
びコアを全通した全切断線と、これと連続する罫線とが
交互に所定ピッチで連続するものであることを特徴とす
る折畳み箱。2. A bottom plate obtained by cutting a corrugated cardboard in which a hollow core material is integrally molded in a sandwich shape between two substrates, and a long side surface portion formed by bending on both sides of the bottom plate. The long side plates, the pair of short side plates made of corrugated board arranged in the front and rear openings of the long side plates, the frame edges fitted to the upper edges of both side plates to form a frame, and each frame edge Four upper corner members that are fitted to the butted corner portions to connect the edge frames, and fold lines serving as hinges are formed in the upper, lower and center parts of each of the long side plates, and the bottom plate It is possible to fold in a V shape toward the side, a folding line is formed at the upper part of each of the short side plates, and it is possible to fold toward the inside of the edge frame. With each of the frame edges and corners assembled in a box frame shape, In the folding box that is flattened in the edge frame by folding as a hinge and is shaped into a box by raising each side plate with the folding line as the hinge, the folding box is formed in the center of the long side plate. The folding box is characterized in that all the cutting lines passing through the substrate and the core and the continuous ruled lines alternate with each other at a predetermined pitch.
り突出する短尺側側板の噛み込み防止用タブを一体に形
成したことを特徴とする請求項１または２に記載の折畳
み箱。3. The folding box according to claim 1, wherein tabs for preventing the short side plates protruding from the end face of the box are integrally formed on both sides of the long side plate. .
の立上げ形状を保持する４つの下部コーナ材を備え、下
部コーナ材の内側に長尺側側板の内側に突出するストッ
パプレートを立ち上げ形成し、このストッパプレートの
内側に突起を突出してなり、折畳み状態の短尺側側板を
回動して立ち上げる際に、側板の端縁が前記突起を弾発
的に乗越え、立上げ状態で突起により戻り止めされるこ
とを特徴とする請求項１〜３のいずれかの項に記載の折
畳み箱。4. A bottom plate is provided with four lower corner members fitted into the corner portions of the bottom plate to hold the rising shape of each side plate, and a stopper plate projecting inside the long side plate is provided inside the lower corner member. It is formed by rising, and the protrusion is projected inside the stopper plate, and when the folded short side plate is rotated and risen, the edge of the side plate elastically jumps over the protrusion and stands up. The folding box according to any one of claims 1 to 3, wherein the folding box is detented by a protrusion.
板の上部側端縁に当接する延長部を一体に設けたことを
特徴とする請求項１〜４のいずれかの項に記載の折畳み
箱。5. The folding according to claim 1, wherein an extension portion that abuts an upper side edge of each side plate is integrally provided at a lower portion of the corner portion of the upper corner material. box.
み線をさけた位置において、長尺側側板の端縁とこれと
交差する短尺側側板の端縁のそれぞれに互いに係合可能
な係止部材を設けたことを特徴とする請求項１〜５のい
ずれかの項に記載の折畳み箱。6. An end edge of the long side plate and an end edge of the short side plate that intersects with the fold line formed at the center of the long side plate are engageable with each other. The folding box according to claim 1, further comprising a locking member.
縁に立ち上げ部を立設し、この立上げ部の内側に係合部
を形成するとともに、下部枠縁の板面に戻り止め用の突
起を突設する一方、前記短尺側側板の下部枠縁の下端縁
外側に前記凹部に鈎形係合する係合部を形成したもので
あり、製箱状態で前記短尺側側板の下部枠縁が前記突起
を弾発的に乗越えて前記係合部同士が鈎形係合するとと
もに、前記突起により戻り止めされることを特徴とする
請求項１〜３のいずれかの項または請求項６に記載の折
畳み箱。7. A rising portion is provided upright on an outer edge of a lower frame edge provided on an edge of the bottom plate, and an engaging portion is formed inside the rising portion, and a plate surface of the lower frame edge is formed. On the outside of the lower end of the lower frame edge of the short side plate, an engaging portion that engages in a hook shape with the recess is formed, while the detent projection is projected on the short side. 4. The lower frame edge of the side plate elastically rides over the protrusion so that the engaging portions engage with each other in a hook shape, and the detent is retained by the protrusion. Alternatively, the folding box according to claim 6.
み面同士を離接可能に接合する手段を設けたことを特徴
とする請求項１〜７のいずれかの項に記載の折畳み箱。8. The folding box according to claim 1, further comprising means for joining the folding surfaces of the long side plate in a folded state so that the folding surfaces can be brought into contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003031697A JP4324389B2 (en) | 2002-02-07 | 2003-02-07 | Folding box |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002031351 | 2002-02-07 | ||
| JP2002-31351 | 2002-02-07 | ||
| JP2003031697A JP4324389B2 (en) | 2002-02-07 | 2003-02-07 | Folding box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003300526A true JP2003300526A (en) | 2003-10-21 |
| JP4324389B2 JP4324389B2 (en) | 2009-09-02 |
Family
ID=29404949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003031697A Expired - Lifetime JP4324389B2 (en) | 2002-02-07 | 2003-02-07 | Folding box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4324389B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2865460A1 (en) * | 2004-01-27 | 2005-07-29 | Etude Conditionnement Palettis | Folding rectangular parallelpiped plastic or cardboard box has two walls in form of hinged shutters and others made in one piece with base and folding lengthwise |
| JP2012224377A (en) * | 2011-04-20 | 2012-11-15 | Tokan Kogyo Co Ltd | Foldable container |
-
2003
- 2003-02-07 JP JP2003031697A patent/JP4324389B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2865460A1 (en) * | 2004-01-27 | 2005-07-29 | Etude Conditionnement Palettis | Folding rectangular parallelpiped plastic or cardboard box has two walls in form of hinged shutters and others made in one piece with base and folding lengthwise |
| WO2005082727A1 (en) * | 2004-01-27 | 2005-09-09 | Etude Conditionnement Palettisation | Folding rectangular parallelepiped box |
| JP2012224377A (en) * | 2011-04-20 | 2012-11-15 | Tokan Kogyo Co Ltd | Foldable container |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4324389B2 (en) | 2009-09-02 |
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