JP2009119037A - Corrugated fiberboard casket - Google Patents

Corrugated fiberboard casket Download PDF

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JP2009119037A
JP2009119037A JP2007296558A JP2007296558A JP2009119037A JP 2009119037 A JP2009119037 A JP 2009119037A JP 2007296558 A JP2007296558 A JP 2007296558A JP 2007296558 A JP2007296558 A JP 2007296558A JP 2009119037 A JP2009119037 A JP 2009119037A
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plate
box
corrugated
lower box
longitudinal direction
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Akira Hibi
章 日比
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HEIWA CASKET KK
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HEIWA CASKET KK
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Priority to JP2007296558A priority Critical patent/JP2009119037A/en
Priority to CN 200810110615 priority patent/CN101433489B/en
Publication of JP2009119037A publication Critical patent/JP2009119037A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a box-shaped corrugated fiberboard casket with excellent stability, which is not easily distorted even when receiving loads and is not easily deformed by the change of a temperature or humidity. <P>SOLUTION: For the corrugated fiberboard casket 10, a lower box 12 (box body) is formed by bending the unfolded sheet of a strengthened corrugated fiberboard material. The lower box 12 is provided with a bottom plate 12A, side plates 12B raised roughly vertically on the right and left in the longitudinal direction of the bottom plate 12A, and side planks 12C raised roughly vertically at the front and back in the longitudinal direction of the bottom plate. On the at least center part in the longitudinal direction at the right and left corners of the inner side bottom part of the lower box 12, a diagonal brace plate 16 for supporting the wall surface of the side plate 12B and the wall surface of the bottom plate 12A is provided. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、段ボール棺に関するもので、詳しくは、段ボール棺の箱形状を強化するための補強構造に関するものである。   The present invention relates to a corrugated cardboard cage, and more particularly to a reinforcing structure for reinforcing the box shape of the corrugated cardboard cage.

従来より、木製棺に代わる棺として段ボール棺が知られている。段ボール棺は、木製棺に比べ軽量で燃焼性および加工性に優れるため、環境に優しい葬送品として注目されている。   Conventionally, a corrugated cardboard basket is known as an alternative to a wooden basket. Corrugated cardboard boxes are attracting attention as environmentally friendly funerals because they are lighter and more combustible and workable than wooden boxes.

最近では、強化段ボール材を採用した段ボール棺が開発されている。この種の段ボール棺は、強化段ボール材の展開シートを箱状に折り曲げて形成される。
例えば、図11に示すように、展開シートP0は、矩形の底板2Aの左右に側板2B,2Bが設けられ、底板2Aの前後に妻板2C,2Cが設けられる。底板2Aと、側板2Bおよび妻板2Cとの境界には、折曲げ用の縦V溝y0、横V溝x0がほぼ90゜角のV字状の断面をもって形成される。
図11の状態から底板2Aに対し側板2Bと妻板2Cを垂直に折り曲げ、これらのV溝面を貼り合わせて下箱2を組み立てる。下箱2の上方には、強化段ボール材で別個に作成された上蓋が開閉可能に載置される。
Recently, corrugated cardboard cages using reinforced corrugated cardboard materials have been developed. This type of corrugated board is formed by folding a development sheet of reinforced corrugated board material into a box shape.
For example, as shown in FIG. 11, the unfolded sheet P0 is provided with side plates 2B and 2B on the left and right sides of the rectangular bottom plate 2A, and with end plates 2C and 2C before and after the bottom plate 2A. At the boundary between the bottom plate 2A, the side plate 2B, and the end plate 2C, a vertical V groove y0 and a horizontal V groove x0 for bending are formed with a V-shaped cross section having a substantially 90 ° angle.
From the state shown in FIG. 11, the side plate 2B and the end plate 2C are bent perpendicularly to the bottom plate 2A, and the lower box 2 is assembled by bonding these V-groove surfaces together. Above the lower box 2, an upper lid separately made of reinforced cardboard material is placed so as to be openable and closable.

なお、段ボール棺の補強に係る先行技術としては、特許文献1および2が開示されている。   Note that Patent Documents 1 and 2 are disclosed as prior art relating to reinforcement of corrugated board cages.

特開2004−208860号公報 請求項4、図4「補強材25C」参照JP, 2004-208860, A Refer to claim 4 and Drawing 4 "reinforcing material 25C". 実開平7−17225号公報 請求項2〜4、図7「厚紙(第一補強部材20)」参照Japanese Utility Model Laid-Open No. 7-17225 Refer to Claims 2 to 4 and FIG. 7 "Thick paper (first reinforcing member 20)".

しかしながら、このような従来の段ボール棺(図11参照)は、段ボール材の強度が木材よりも小さいため、木製棺に比べて耐荷重性が劣る。特に、下箱には、荷重が直接作用するため、荷重負荷が大きくなると箱形状が大きく歪む。
また、段ボール材が温度や湿度の変化の影響を受けやすいため、長期間保管していると、箱形状が変形してしまい、段ボール棺の製品価値を損ねるといった問題もある。
However, such a conventional corrugated cardboard basket (see FIG. 11) is inferior in load resistance compared to a wooden basket because the strength of the corrugated cardboard material is smaller than that of wood. In particular, since the load acts directly on the lower box, the box shape is greatly distorted when the load is increased.
Further, since the corrugated cardboard material is easily affected by changes in temperature and humidity, there is also a problem that when stored for a long period of time, the box shape is deformed and the product value of the corrugated cardboard bag is impaired.

本発明は、このような現状に鑑みなされたもので、荷重負荷を受けても歪みにくく、温度や湿度の変化により変形しにくい箱形状の安定性に優れた段ボール棺を提供することを目的としている。   The present invention has been made in view of such a situation, and an object of the present invention is to provide a corrugated cardboard cage excellent in stability of a box shape that is not easily distorted even when subjected to a load, and that is not easily deformed by changes in temperature and humidity. Yes.

このような状況の下、本発明者らは、強化段ボール材からなる展開シートを折り曲げて形成した下箱サイズの箱体について、納棺時の負荷の大きさ・位置を仮定した耐荷重性の試験を繰り返し行い、箱形状の歪みや変形の状況を調査した。この結果、箱体が潰れるときの形状変化の過程には、一定の法則性があることを知見し、このような箱体の長手方向の中央部の特定箇所を強化することで、箱全体の強度が大幅に高められることを見出した。   Under such circumstances, the present inventors conducted a load resistance test assuming the size and position of the load at the time of storage for a lower box size box formed by folding a development sheet made of reinforced corrugated cardboard material. Was repeated to investigate the state of distortion and deformation of the box shape. As a result, the process of shape change when the box is crushed knows that there is a certain law, and by strengthening the specific part of the central part in the longitudinal direction of such a box, It has been found that the strength can be greatly increased.

[第1発明]
すなわち、前記課題を解決するための本発明の段ボール棺は、
強化段ボール材の展開シートを折り曲げて箱体を形成するようにした段ボール棺において、
前記箱体は、
底板と、
この底板の長手方向の左右にほぼ垂直に立ち上げられる側板と、
前記底板の長手方向の前後にほぼ垂直に立ち上げられる妻板を備え、
前記箱体の内側底部の左右隅であって長手方向の少なくとも中央部に、前記側板壁面と前記底板壁面とを突っ張る筋交い板を設ける構成とした。
[First invention]
That is, the cardboard box of the present invention for solving the above problem is
In the corrugated cardboard cage in which the development sheet of the reinforced corrugated cardboard material is folded to form a box,
The box is
The bottom plate,
A side plate that rises almost vertically to the left and right in the longitudinal direction of the bottom plate;
It is provided with a end plate that is raised almost vertically before and after the longitudinal direction of the bottom plate,
A bracing plate that stretches the side plate wall surface and the bottom plate wall surface is provided at the left and right corners of the inner bottom portion of the box and at least in the center portion in the longitudinal direction.

前述した本発明者らによる耐荷重試験によれば、箱体内部への荷重負荷が大きくなると、最初に図12(A)に示すように、左右の側板2Bの中央部に内向きの負荷がかかる。この負荷に側板2Bが耐えきれなくなると、図12(B)に示すように、側板2Bが内側に倒れ始めて同時に底板2Aが長手方向(前後方向)に撓み出す。
さらに、荷重が大きくなると、図12(C)に示すように、側板2Bがさらに内側に倒れ込んで、箱体上部の長手方向の中央付近で潰れが起こり、この潰れ部分を支点にして箱全体が中央に折り畳まれるように折れ曲がる。
According to the above-described load resistance test by the present inventors, when the load load inside the box increases, first, as shown in FIG. 12 (A), an inward load is applied to the center portion of the left and right side plates 2B. Take it. When the side plate 2B cannot withstand this load, as shown in FIG. 12B, the side plate 2B starts to fall inward and at the same time, the bottom plate 2A begins to bend in the longitudinal direction (front-rear direction).
When the load further increases, as shown in FIG. 12 (C), the side plate 2B further falls inward, causing crushing in the vicinity of the center in the longitudinal direction of the upper part of the box. Bend to fold in the center.

第1発明の構成では、箱体の内側底部で筋交い板によって底板および側板の長手方向中央部の壁面を突っ張ることで、側板の初期段階の内側への倒れ込みを防止する。これにより、箱体への荷重負荷が箱全体に分散されて箱形状の歪みを抑えることができる。   In the configuration of the first invention, the wall of the bottom plate and the central portion in the longitudinal direction of the side plate is stretched by the bracing plate at the inner bottom portion of the box, thereby preventing the side plate from falling inward in the initial stage. Thereby, the load load to a box is disperse | distributed to the whole box, and box-shaped distortion can be suppressed.

また、温度や湿度の変化により段ボール棺が変形する場合には、通常、側板が長手方向に伸びて、この伸びが側板の中央部を内側へ反らせる。第1発明の構成によれば、側板の内側への反りを筋交い板によって止めることで側板を真っ直ぐに保つ。この結果、温度や湿度の変化による箱形状の変形を抑えることができる。   Further, when the corrugated board is deformed due to changes in temperature and humidity, the side plate usually extends in the longitudinal direction, and this elongation causes the center portion of the side plate to warp inward. According to the structure of 1st invention, a side board is kept straight by stopping the curvature to the inner side of a side board with a bracing board. As a result, deformation of the box shape due to changes in temperature and humidity can be suppressed.

[第2発明]
第2発明の段ボール棺は、第1発明の構成を有するものであって、
前記筋交い板が、一対の厚板の間に波板を積層してなる強化段ボール材からなり、かつ、前記波板の凹凸条が前記下箱の長手方向に配向される構成とした。
[Second invention]
The corrugated cardboard cage of the second invention has the configuration of the first invention,
The bracing plate is made of a reinforced corrugated board material in which corrugated plates are laminated between a pair of thick plates, and the corrugated strips of the corrugated plate are oriented in the longitudinal direction of the lower box.

このような構成によれば、箱体とともに筋交い板を強化段ボール材で形成することができるため、軽量で燃焼性に優れる段ボール棺の特性を損なうことがない。
また、筋交い板の段ボール材における波板の凹凸条が、箱体の長手方向に向いて設けられるから、筋交い板の長手方向の曲げ強度が大きくなり、段ボール棺の中央部の強度を効果的に高めることが可能になる。
According to such a configuration, the bracing plate can be formed of a reinforced corrugated cardboard material together with the box, so that the characteristics of the corrugated cardboard cage that is lightweight and excellent in combustibility are not impaired.
In addition, since the corrugated strips on the corrugated board material of the bracing plate are provided in the longitudinal direction of the box, the bending strength in the longitudinal direction of the bracing board is increased, and the strength of the central part of the corrugated board is effectively increased. It becomes possible to increase.

[第3発明]
発明者らの試験によれば、箱体の内側底部の左右隅に筋交い板を設ける場合、箱体の長手方向中間位置を基準として一定の範囲の長さを確保すれば、それ以上筋交い板を長くしても箱体の耐荷重性は大きく向上しないことが確認された。具体的には、箱体の長手方向の全長に対し、その中心位置から1/20〜1/2程度の範囲で筋交い板を設ければ箱体の強度を一般的な使用に十分に耐える程度に高めることができる。
[Third invention]
According to the tests by the inventors, when bracing plates are provided at the left and right corners of the inner bottom of the box, if a certain range of length is secured with reference to the middle position in the longitudinal direction of the box, the bracing plate is further increased. It was confirmed that the load resistance of the box did not greatly improve even when the length was increased. Specifically, if the bracing plate is provided in the range of about 1/20 to 1/2 from the center position with respect to the full length in the longitudinal direction of the box, the strength of the box is sufficiently durable for general use. Can be increased.

そこで、第3発明の段ボール棺は、第1または2発明の構成を有するものであって、
前記筋交い板の長さが、前記箱体の長手方向中間位置に前記筋交い板の長手方向中間位置を一致させた状態で、前記箱体の全長の1/20〜1/2の範囲に設定される構成とした。
Accordingly, the corrugated cardboard cage of the third invention has the configuration of the first or second invention,
The length of the bracing plate is set in the range of 1/20 to 1/2 of the total length of the box with the longitudinal intermediate position of the bracing plate aligned with the longitudinal intermediate position of the box. The configuration is as follows.

このように筋交い板の長さを上記範囲に制限することで、箱形状を補強しつつ、材料コストを節約し、段ボール棺の軽量化を図ることが可能になる。   Thus, by limiting the length of the bracing plate to the above range, it is possible to reinforce the box shape, save the material cost, and reduce the weight of the corrugated board bag.

[第4発明]
第4発明の段ボール棺は、第1〜3発明のいずれかの構成を有するものであって、
前記箱体の上端部に、前記側板および前記妻板の先端を内側に折り返してなる補強枠が形成される構成とした。
[Fourth Invention]
The corrugated cardboard cage of the fourth invention has any one of the first to third inventions,
A reinforcing frame is formed at the upper end of the box by folding the ends of the side plate and the end plate inward.

前述したように、箱体が荷重負荷を受けると、その長手方向中央部で折り曲がる直前に側板の上端中央付近が局部的に圧縮されて潰れる。同時に、前後の妻板が内側に倒れ込むように傾く。第4発明の構成では、このような側板の上端部の潰れと妻板の傾きを補強枠が防止する。これにより、段ボール棺の強度を高めることができる。   As described above, when the box is subjected to a load, the vicinity of the center of the upper end of the side plate is locally compressed and crushed immediately before being bent at the center in the longitudinal direction. At the same time, it tilts so that the front and back wives fall inside. In the configuration of the fourth aspect of the invention, the reinforcing frame prevents such collapse of the upper end portion of the side plate and inclination of the end plate. Thereby, the intensity | strength of a cardboard box can be raised.

なお、側板の内側上部には、補強枠に加えて側板の上部中央を補強するための補助板を追加してもよい。このように箱体の潰れが起こりやすい部分を集中的に補強することで、段ボール棺の強度をさらに向上させることが可能になる。   In addition to the reinforcing frame, an auxiliary plate for reinforcing the upper center of the side plate may be added to the inner upper portion of the side plate. In this way, the strength of the corrugated board can be further improved by intensively reinforcing the portion where the box is easily crushed.

[第1〜4発明]
第1〜4発明は、強化段ボール材からなる展開シートを折り曲げて箱体を組み立てる段ボール棺に適用することができる。通常は、段ボール棺の下箱と上蓋のうち、下箱に本発明を適用することが想定されるが、上蓋が箱状になっている場合には、このような上蓋にも本発明を適用することができる。
段ボール棺の用途(人用、ペット用等)や種類(寝棺、座棺等)は、特に限定されることはない。
[First to Fourth Inventions]
The first to fourth inventions can be applied to a corrugated cardboard basket that folds a developed sheet made of a reinforced corrugated cardboard material to assemble a box. Usually, it is assumed that the present invention is applied to the lower box among the lower box and the upper lid of the cardboard box. However, when the upper lid is box-shaped, the present invention is also applied to such an upper lid. can do.
There are no particular limitations on the use (such as for humans and pets) and the type (such as sleeping robes and seats) of cardboard baskets.

なお、第1〜4発明は、単独で適用してもよいし、これらの発明を必要に応じて組み合わせて適用することもできる。また、第1〜4発明に本明細書に記載される他の発明を組み合わせてもよい。   In addition, the 1st-4th invention may be applied independently, and can also apply combining these inventions as needed. Further, the first to fourth inventions may be combined with other inventions described in this specification.

以下、本発明の実施形態を図面に基づいて説明する。本実施形態は、段ボール棺の下箱に本発明を適用したものである。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, the present invention is applied to a lower box of a cardboard box.

[第1実施形態]
図1に示すように、段ボール棺10は、下箱12と蓋13とからなる。下箱12の上方に蓋13が載置される。蓋13の前側上部には、小窓14が設けられる。この小窓14には観音扉が取り付けられ、これらの扉を開くことで棺の内部が覗けるようになっている。
段ボール棺10の寸法は、例えば長さが170〜200cm程度、幅が50〜70cm程度、下箱12と上蓋13を含めた高さが40〜50cm程度である。
[First Embodiment]
As shown in FIG. 1, the cardboard box 10 includes a lower box 12 and a lid 13. A lid 13 is placed above the lower box 12. A small window 14 is provided on the upper front side of the lid 13. A kannon door is attached to the small window 14, and by opening these doors, the inside of the bag can be seen.
The dimensions of the corrugated board 10 are, for example, a length of about 170 to 200 cm, a width of about 50 to 70 cm, and a height including the lower box 12 and the upper lid 13 of about 40 to 50 cm.

下箱12および上蓋13は、強化段ボール材により形成される。強化段ボール材としては、例えば、板厚10〜20mm程度の三層強化段ボール材(例えばトライウォール社製)が採用される。この種の段ボール材は、図5の部分拡大図に示すように、2枚の厚板(ライナー)Rf,Rbとの間に、3層の波板r1〜r3が仕切り板r4およびr5を介して積層されてなるもので、優れた耐圧性・耐水性をもつ。
強化段ボール材に折曲げ用のV溝を形成する際には、これらの層のうち厚板Rf,Rbのいずれかを残して他の層を回転刃等を用いて切削する。強化段ボール材の板を折り曲げる際には、残した片方の厚板(ライナー)のみを折り曲げて、V溝の傾斜する溝面を互いに密着させる。V溝の溝角がほぼ90゜になるようにV溝加工を施せば、隣り合う板同士がほぼ垂直に折れ曲がる。なお、他のV溝の形成方法としては、プレス機等で段ボール面を断面V字状に圧縮して形成することもできる。
The lower box 12 and the upper lid 13 are formed of a reinforced corrugated cardboard material. As the reinforced cardboard material, for example, a three-layer reinforced cardboard material having a thickness of about 10 to 20 mm (for example, manufactured by Triwall) is employed. As shown in the partially enlarged view of FIG. 5, this type of corrugated board material has three layers of corrugated plates r1 to r3 interposed between two thick plates (liners) Rf and Rb via partition plates r4 and r5. It is laminated and has excellent pressure resistance and water resistance.
When the V-groove for bending is formed in the reinforced corrugated cardboard material, the other layers are cut using a rotary blade or the like while leaving one of the thick plates Rf and Rb. When the reinforced corrugated board is folded, only the remaining thick plate (liner) is folded and the inclined groove surfaces of the V-groove are brought into close contact with each other. If V-groove processing is performed so that the groove angle of the V-groove is approximately 90 °, adjacent plates bend substantially vertically. As another V-groove forming method, the corrugated board surface can be compressed into a V-shaped cross section with a press or the like.

段ボール棺10の表面には、必要に応じて布やフィルムなどの化粧シートが貼り付けられる。このような化粧仕上げ施すことで、段ボール材の表面が隠れて棺の外観が高級感のあるものに仕上がる。   A decorative sheet such as a cloth or a film is affixed to the surface of the cardboard box 10 as necessary. By applying such a cosmetic finish, the surface of the corrugated cardboard material is hidden, and the appearance of the bag is finished to a high-class appearance.

図2に示すように、下箱12の展開シートP1は、矩形の底板12Aの左右に側板12B,12Bが設けられ、底板12Aの前後に妻板12C,12Cが設けられる。底板12Aと、側板12Bおよび妻板12Cとの境界には、折曲げ用の縦V溝y1、横V溝x1が形成されている。これらの縦V溝y1、横V溝x1は、ほぼ90゜角のV字状の断面をもつ。
側板12Bおよび妻板12Cの先端部には、W溝(ほぼ90゜角にカットされたV溝を2列に並設して形成した溝)を挟んで枠板12Dが設けられる。図2の状態では、枠板12DがW溝により180゜折り返されている。
As shown in FIG. 2, the development sheet P1 of the lower box 12 is provided with side plates 12B and 12B on the left and right sides of the rectangular bottom plate 12A, and with end plates 12C and 12C before and after the bottom plate 12A. A vertical V groove y1 and a horizontal V groove x1 for bending are formed at the boundary between the bottom plate 12A, the side plate 12B, and the end plate 12C. These vertical V-groove y1 and horizontal V-groove x1 have a V-shaped cross section of approximately 90 °.
A frame plate 12D is provided at the front end portions of the side plate 12B and the end plate 12C with a W groove (a groove formed by arranging V grooves cut at approximately 90 ° in two rows in parallel) interposed therebetween. In the state of FIG. 2, the frame plate 12D is folded back 180 ° by the W groove.

図2の状態から底板12Aに対し側板12Bと妻板12Cを垂直に折り曲げ、これらのV溝面を接着剤、粘着テープ等で貼り合わせると、図1に示す下箱12となる。下箱12の上端部には、前後左右の4つの枠板12Dが合わさって補強枠が形成される。   When the side plate 12B and the end plate 12C are bent perpendicularly to the bottom plate 12A from the state of FIG. 2 and these V-groove surfaces are bonded together with an adhesive, an adhesive tape or the like, the lower box 12 shown in FIG. At the upper end of the lower box 12, four frame plates 12D on the front, rear, left and right are combined to form a reinforcing frame.

図1および図3に示すように、下箱12の内側底部の左右隅には、強化段ボール材からなる筋交い板16が設けられる。筋交い板16は、一定の幅と厚みをもつ帯状の板であり、側板12Bと底板12Aの間にほぼ45゜の傾斜をもって架け渡されている(図4参照)。筋交い板16の左右側端は、その表裏の板面に対して45゜の傾斜で左右対称にカットされ、これらの傾斜面が接着剤、粘着テープ等により側板12Bと底板12Aとの壁面に強固に固定されている。   As shown in FIGS. 1 and 3, bracing plates 16 made of reinforced corrugated cardboard material are provided at the left and right corners of the inner bottom of the lower box 12. The bracing plate 16 is a belt-like plate having a certain width and thickness, and is spanned between the side plate 12B and the bottom plate 12A with an inclination of approximately 45 ° (see FIG. 4). The left and right side edges of the bracing plate 16 are cut symmetrically with an inclination of 45 ° with respect to the front and back plate surfaces, and these inclined surfaces are firmly attached to the wall surfaces of the side plate 12B and the bottom plate 12A by an adhesive, adhesive tape or the like. It is fixed to.

筋交い板16の長さについては、下箱12の長手方向中間位置に筋交い板16の長手方向中間位置を一致させた状態で、下箱12の全長の1/2程度(80〜100cm程度)に設定される。また、筋交い板16の板幅は、5〜10cm程度に設定される。
なお、筋交い板16は、下箱12の内側底部の左右隅に位置するため、棺に遺体を入れるときの邪魔になることはない。また、下箱12の仕上げに伴って化粧布で筋交い板16が隠れるため、棺の使用時に下箱12の内側に筋交い板16が見えることはない。
The length of the bracing plate 16 is about ½ of the total length of the lower box 12 (about 80 to 100 cm) in a state where the longitudinal middle position of the bracing plate 16 is matched with the longitudinal middle position of the lower box 12. Is set. Further, the width of the bracing plate 16 is set to about 5 to 10 cm.
In addition, since the bracing plate 16 is located in the left and right corners of the inner bottom portion of the lower box 12, it does not interfere with putting the body in the bag. Further, since the bracing plate 16 is hidden by the decorative cloth as the lower box 12 is finished, the bracing plate 16 is not seen inside the lower box 12 when the bag is used.

図5に示すように、筋交い板16の横断面には、強化段ボール材の内部構造として厚板Rb,Rfの間に波板r1〜r3の積層構造が現れる。これらの波板r1〜r3の凹凸条は、下箱12の長手方向に連なって延びる。これにより、筋交い板16の長手方向に対する曲げ強度が十分に大きく確保されている。   As shown in FIG. 5, in the cross section of the bracing plate 16, a laminated structure of corrugated plates r1 to r3 appears between the thick plates Rb and Rf as the internal structure of the reinforced corrugated board material. The corrugated strips of these corrugated plates r 1 to r 3 extend continuously in the longitudinal direction of the lower box 12. Thereby, the bending strength with respect to the longitudinal direction of the bracing plate 16 is secured sufficiently large.

なお、下箱12については、その波板の凹凸条が筋交い板16の凹凸条と直交する方向に向けられている。すなわち、図2の展開シートP1において、波板の凹凸条は、上下方向に延びている。
このように下箱12と筋交い板16との間で波板の凹凸条を直交させることで、下箱12の長手方向および短手方向の強度がバランスよく補強される。特に、本実施形態の構成では、底板12Aと側板12Bとの間で角部の寸法精度が高くなり、しかも、下箱12の中央部の強度が大きい高品質の段ボール棺10を得ることができる。もちろん下箱12と筋交い板16における凹凸条の向きを反対にすることも可能である。この場合でも、下箱12の長手方向および短手方向の強度をバランスよく補強することができる。
For the lower box 12, the corrugated strips of the corrugated sheet are oriented in a direction orthogonal to the corrugated strips of the bracing plate 16. That is, in the unfolded sheet P1 in FIG. 2, the corrugated strips extend in the vertical direction.
In this way, by making the corrugated strips perpendicular to each other between the lower box 12 and the brace 16, the strength of the lower box 12 in the longitudinal direction and the lateral direction is reinforced in a well-balanced manner. In particular, in the configuration of the present embodiment, the dimensional accuracy of the corner portion between the bottom plate 12A and the side plate 12B is increased, and the high-quality corrugated cardboard cage 10 having high strength at the center portion of the lower box 12 can be obtained. . Of course, it is also possible to reverse the direction of the projections and depressions in the lower box 12 and the bracing plate 16. Even in this case, the strength of the lower box 12 in the longitudinal direction and the lateral direction can be reinforced with a good balance.

次に、段ボール棺10の作用・効果を説明する。
図6に示すように、下箱12の内部で下向きの荷重負荷が大きくなると、側板12Bには底板12Aに引っ張られて内側へ倒れ込もうとする負荷(矢印t参照)が作用する。しかしながら、段ボール棺10では、筋交い板16が底板12Aと側板12Bの壁面を突っ張って側板12Bの倒れ込みを防止するため、前述したような下箱12が潰れる際の初期の変形が起こらない(図12(B)参照)。この結果、箱形状の歪みを抑えて耐荷重性を大幅に向上させることができる。発明者らの実験によれば、筋交い板16の付いたものでは、付いていないものに比べ耐荷重性が60〜80kg高められることが確認された。
Next, the operation and effect of the corrugated cardboard cage 10 will be described.
As shown in FIG. 6, when a downward load is increased inside the lower box 12, a load (see arrow t) is applied to the side plate 12 </ b> B that is pulled by the bottom plate 12 </ b> A and falls inside. However, in the corrugated board 10, since the bracing plate 16 stretches the wall surfaces of the bottom plate 12A and the side plate 12B to prevent the side plate 12B from collapsing, the initial deformation when the lower box 12 is crushed does not occur (FIG. 12). (See (B)). As a result, the load resistance can be greatly improved by suppressing the distortion of the box shape. According to the experiments by the inventors, it was confirmed that the load resistance is increased by 60 to 80 kg in the case with the bracing plate 16 as compared with the case without the bracing plate 16.

また、温度や湿度の変化により側板12Bが長手方向に伸びて内側に反ろうとしても、筋交い板16が側板12Bの中央部の壁面を支持して内側への反りを止める。このため、側板12Bの姿勢を真っ直ぐに保ち、温度や湿度の変化による箱形状の変形を抑えることができる。   Further, even if the side plate 12B extends in the longitudinal direction and warps inward due to changes in temperature and humidity, the bracing plate 16 supports the wall surface of the central portion of the side plate 12B and stops warping inward. For this reason, the attitude | position of the side plate 12B can be kept straight, and the box-shaped deformation | transformation by the change of temperature and humidity can be suppressed.

さらに、段ボール棺10では、側板12Bおよび妻板12Cの上端部に補強枠(枠板12D)が折り返されるため、これらの枠板12Dによっても下箱12の歪みや変形を抑えることができる。つまり、筋交い板16の突っ張り力に加えて補強枠(枠板12D)が側板12Bおよび妻板12Cの内側へ倒れ込みを防止し、筋交い板16と相俟って下箱12強度を高めることができる。   Furthermore, in the corrugated cardboard cage 10, the reinforcing frame (frame plate 12D) is folded back at the upper ends of the side plate 12B and the end plate 12C, so that distortion and deformation of the lower box 12 can also be suppressed by these frame plates 12D. That is, the reinforcing frame (frame plate 12D) can be prevented from falling inside the side plate 12B and the end plate 12C in addition to the tension force of the bracing plate 16, and the strength of the lower box 12 can be increased in combination with the bracing plate 16.

[第2実施形態]
次に、本発明の第2実施形態を図8および図9に示した。第2実施形態の段ボール棺20は、側板12Bの内側上部に補助板21を追加したものである。
段ボール棺20は、下箱12と上蓋13とからなり、下箱12の内側底部の左右隅に第1実施形態と同様な筋交い板16が設けられる。下箱12の上端部には、側板12Bおよび妻板12Cの先端を内側に折り返して補強枠(枠板D)が形成されている。
側板12Bの内側上部であって補強枠(枠板12D)の直ぐ下には、補助板21が固定される(図9参照)。補助板21は、同様な強化段ボール材を一定幅に切断して形成されるもので、筋交い板16とほぼ同じ長さで、その波板の凹凸条を下箱12の長手方向に向けている。
[Second Embodiment]
Next, a second embodiment of the present invention is shown in FIGS. The corrugated cardboard trough 20 of the second embodiment is obtained by adding an auxiliary plate 21 to the inner upper part of the side plate 12B.
The cardboard box 20 includes a lower box 12 and an upper lid 13, and bracing plates 16 similar to those of the first embodiment are provided at the left and right corners of the inner bottom portion of the lower box 12. A reinforcing frame (frame plate D) is formed at the upper end of the lower box 12 by folding the ends of the side plate 12B and the end plate 12C inward.
The auxiliary plate 21 is fixed on the inner upper portion of the side plate 12B and immediately below the reinforcing frame (frame plate 12D) (see FIG. 9). The auxiliary plate 21 is formed by cutting a similar reinforced corrugated cardboard material to a certain width, and has substantially the same length as the brace plate 16 with the corrugated strips facing the longitudinal direction of the lower box 12. .

第2実施形態によれば、側板12Bの上部中央を集中的に補強することで、下箱12の強度をさらに高めることができる。なお、補助板21は、枠板12Dの直ぐ下にを配置されるため、棺の使用時に邪魔になることはない。   According to the second embodiment, the strength of the lower box 12 can be further increased by intensively reinforcing the upper center of the side plate 12B. In addition, since the auxiliary | assistant board 21 is arrange | positioned just under the frame board 12D, it does not become obstructive at the time of use of a bag.

[第3実施形態]
本発明の第3実施形態を図10に示した。第3実施形態は、平面形状が八角形の棺に本発明を適用したものである。
図10に示すように、段ボール棺30は、下箱12と上蓋13が平面方向から見て八角形になるように四隅部が面取りされる。上蓋13の上端四隅は三角形に面取りされて宝飾品のような多面体の外観になっている。
下箱12の内側底部の左右隅には、第1実施形態と同様な筋交い板16が設けられる。下箱12の上端部には、側板12Bおよび妻板12Cの先端を内側に折り返して補強枠(枠板12D)が形成されている。側板12Bと妻板12Cとを繋ぐコーナ部分には、面取り板12Eが設けられる。
[Third Embodiment]
A third embodiment of the present invention is shown in FIG. In the third embodiment, the present invention is applied to a bag having an octagonal plan shape.
As shown in FIG. 10, the corrugated board 30 is chamfered at the four corners so that the lower box 12 and the upper lid 13 are octagonal when viewed from the plane direction. The upper four corners of the upper lid 13 are chamfered into a triangle to give a polyhedral appearance like jewelry.
Bracing plates 16 similar to those of the first embodiment are provided at the left and right corners of the inner bottom portion of the lower box 12. A reinforcing frame (frame plate 12D) is formed at the upper end portion of the lower box 12 by folding the ends of the side plate 12B and the end plate 12C inward. A chamfered plate 12E is provided at a corner portion connecting the side plate 12B and the end plate 12C.

第3実施形態によれば、第1実施形態と同様に、筋交い板16と補強枠(12D)により下箱12の歪みや変形を防止することができる。
また、下箱12と上蓋13に宝飾品のような面取りが施されるため、その外観の高級感が増して棺のデザイン性を高めることができる。
According to the third embodiment, similarly to the first embodiment, the brace plate 16 and the reinforcing frame (12D) can prevent the lower box 12 from being distorted or deformed.
Moreover, since chamfering like a jewelry is given to the lower box 12 and the upper lid 13, the high-quality feeling of the external appearance can be increased and the design of the bag can be enhanced.

[その他の実施形態]
以上、第1〜第3実施形態の段ボール棺を例示したが、本発明の実施形態はこれらに限定されることなく、下記の通り種々の変形・変更を伴ってもよい。
例えば、第1〜第3実施形態では、下箱12に本発明を適用しているが、上蓋13に本発明を適用してもよい。
また、第1〜3実施形態において、下箱12の枠板12Dについては、必ずしも設ける必要はなく、必要に応じて省略してもよい。
また、展開シートP1における底板12A、側板12Bおよび妻板12Cの配置については、第1〜3実施形態に限られず、例えば側板12Bの長手方向の前後端に妻板12Cの全部または一部を折り曲げ可能に設けてもよい。
さらに、強化段ボール材は、三層強化段ボールに限られず、その他の多層段ボール材、ハニカム構造の段ボール材等を用いてもよい。
[Other Embodiments]
As mentioned above, although the corrugated board cage | basket of 1st-3rd embodiment was illustrated, embodiment of this invention may be accompanied by various deformation | transformation and a change as follows, without being limited to these.
For example, in the first to third embodiments, the present invention is applied to the lower box 12, but the present invention may be applied to the upper lid 13.
In the first to third embodiments, the frame plate 12D of the lower box 12 is not necessarily provided, and may be omitted as necessary.
Further, the arrangement of the bottom plate 12A, the side plate 12B, and the end plate 12C in the unfolded sheet P1 is not limited to the first to third embodiments. For example, all or part of the end plate 12C can be bent at the front and rear ends in the longitudinal direction of the side plate 12B. It may be provided.
Further, the reinforced corrugated cardboard material is not limited to the three-layer reinforced corrugated cardboard, and other multi-layer corrugated cardboard material, a corrugated cardboard material having a honeycomb structure, or the like may be used.

本発明の第1実施形態の段ボール棺を示す斜視図である。It is a perspective view which shows the corrugated board bag of 1st Embodiment of this invention. 同段ボール棺の下箱を組み立てる展開シートを示す平面図およびその破線方向の端面図である。It is the top view which shows the expansion | deployment sheet | seat which assembles the lower box of the cardboard box, and its end view of the broken line direction. 同段ボール棺の下箱を示す平面図である。It is a top view which shows the lower box of the cardboard box. 図3の[4]−[4]線横断面図である。FIG. 4 is a cross-sectional view taken along line [4]-[4] in FIG. 3. 同段ボール棺の筋交い板を示すもので、図4の[5]部分の拡大断面図である。FIG. 5 is an enlarged cross-sectional view of the [5] portion of FIG. 4, showing a bracing plate of the corrugated cardboard basket. 同段ボール棺の下箱の作用を説明するための部分横断面図である。It is a fragmentary cross-sectional view for demonstrating the effect | action of the lower box of the corrugated cardboard box. 同段ボール棺の下箱の作用を説明するための縦断面図である。It is a longitudinal cross-sectional view for demonstrating the effect | action of the lower box of the corrugated cardboard box. 本発明の第2実施形態の段ボール棺を示す斜視図である。It is a perspective view which shows the cardboard box of 2nd Embodiment of this invention. 同段ボール棺の下箱を示す横断面図である。It is a cross-sectional view showing a lower box of the cardboard box. 本発明の第3実施形態の段ボール棺を示す斜視図である。It is a perspective view which shows the corrugated board bag of 3rd Embodiment of this invention. 従来の段ボール棺の下箱を組み立てる展開シートを示す平面図およびその破線方向の端面図である。It is the top view which shows the expansion | deployment sheet | seat which assembles the lower box of the conventional cardboard box, and its end view of the broken line direction. 段ボール棺の荷重増加に伴う形状変化の過程を示すもので、(A)は変形前の斜視図およびその矢視方向断面図、(B)は変形開始後の斜視図およびその矢視方向断面図、(C)は潰れ発生時の側面図およびその矢視方向断面図である。The process of the shape change accompanying the load increase of a corrugated board bag is shown, (A) is the perspective view before a deformation | transformation, and its arrow direction sectional drawing, (B) is the perspective view after a deformation | transformation start, and its arrow direction sectional view. (C) is the side view at the time of occurrence of crushing, and its arrow direction sectional view.

符号の説明Explanation of symbols

10 段ボール棺
12 下箱(箱体)
12A 底板
12B,12B 側板
12C 妻板
12D 枠板(補強枠)
13 上蓋
14 小窓
16 筋交い板
21 補助板
P1 展開シート
x1 横V溝
y1 縦V溝
Rf,Rb 厚板
r1,r2,r3 波板
r4,r5 仕切り板
10 Corrugated cardboard box 12 Lower box (box)
12A Bottom plate 12B, 12B Side plate 12C End plate 12D Frame plate (reinforcement frame)
13 Upper cover 14 Small window 16 Bracing plate 21 Auxiliary plate P1 Deployment sheet x1 Horizontal V groove y1 Vertical V groove Rf, Rb Thick plates r1, r2, r3 Corrugated plates r4, r5 Partition plates

Claims (4)

強化段ボール材の展開シートを折り曲げて箱体を形成するようにした段ボール棺において、
前記箱体は、
底板と、
この底板の長手方向の左右にほぼ垂直に立ち上げられる側板と、
前記底板の長手方向の前後にほぼ垂直に立ち上げられる妻板を備え、
前記箱体の内側底部の左右隅であって長手方向の少なくとも中央部に、前記側板壁面と前記底板壁面とを突っ張る筋交い板を設けたことを特徴とする段ボール棺。
In the corrugated cardboard cage in which the development sheet of the reinforced corrugated cardboard material is folded to form a box,
The box is
The bottom plate,
A side plate that rises almost vertically to the left and right in the longitudinal direction of the bottom plate;
It is provided with a end plate that is raised almost vertically before and after the longitudinal direction of the bottom plate,
A corrugated board scissors provided with a bracing plate that stretches the side plate wall surface and the bottom plate wall surface at least at the center in the longitudinal direction at the left and right corners of the inner bottom portion of the box.
請求項1記載の段ボール棺であって、前記筋交い板が、一対の厚板の間に波板を積層してなる強化段ボール材からなり、かつ、前記波板の凹凸条が前記下箱の長手方向に配向される、段ボール棺。   The corrugated board bag according to claim 1, wherein the bracing plate is made of a reinforced corrugated board material in which corrugated sheets are laminated between a pair of thick plates, and the corrugated strips of the corrugated sheet are in the longitudinal direction of the lower box. Oriented, corrugated cardboard. 請求項1または2記載の段ボール棺であって、前記筋交い板の長さが、前記箱体の長手方向中間位置に前記筋交い板の長手方向中間位置を一致させた状態で、前記箱体の全長の1/20〜1/2の範囲に設定される、段ボール棺。   The cardboard trough according to claim 1 or 2, wherein the length of the bracing plate is such that the longitudinal intermediate position of the bracing plate coincides with the longitudinal intermediate position of the box. Corrugated cardboard basket set in the range of 1/20 to 1/2 of 請求項1、2または3記載の段ボール棺であって、前記箱体の上端部に、前記側板および前記妻板の先端を内側に折り返してなる補強枠が形成される、段ボール棺。   4. The cardboard box according to claim 1, wherein a reinforcing frame is formed at the upper end portion of the box body by folding the ends of the side plate and the end plate inward.
JP2007296558A 2007-11-15 2007-11-15 Corrugated fiberboard casket Pending JP2009119037A (en)

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JP2018177355A (en) * 2017-04-20 2018-11-15 株式会社神戸製鋼所 Placement pallet

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JP5661686B2 (en) * 2012-06-20 2015-01-28 有限会社平和カスケット Assembling model
CN110507510A (en) * 2019-08-28 2019-11-29 安徽恒杰新材料科技股份有限公司 Pet coffin

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