JP3765612B2

JP3765612B2 - Packing cushion

Info

Publication number: JP3765612B2
Application number: JP12017796A
Authority: JP
Inventors: 健中島
Original assignee: Rengo Co Ltd
Current assignee: Rengo Co Ltd
Priority date: 1996-05-15
Filing date: 1996-05-15
Publication date: 2006-04-12
Anticipated expiration: 2016-05-15
Also published as: JPH09301352A

Description

【０００１】
【発明の属する技術分野】
この発明は、被包装物品の嵌込凹所を有する箱状に形成されており、この嵌込凹所に被包装物品の端部を嵌め込んだ状態で包装箱に収容されて被包装物品を衝撃から保護する緩衝体に関するものである。
【０００２】
【従来の技術】
従来より、このような緩衝体としては、登録実用新案公報第３００８１２９号に記載のものがあり、この緩衝体は、図６に示すように、それぞれ内外二重の底壁２６と側壁と端壁からなる箱体に形成されている。この包装用緩衝体２５の側壁は、頂壁２９と、この頂壁２９を介して折り返された、互いに間隔をあけて対向する外側壁２７及び内側壁２８とからなり、端壁は、側壁と同様に、頂壁３２と外端壁３０と内端壁３１とからなる。そして、この包装用緩衝体２５の嵌込凹所３３は、底壁２６と内側壁２８と内端壁３１とで囲まれることとなる。
【０００３】
この包装用緩衝体２５は、通常一対で使用され、それぞれの嵌込凹所３３に被包装物品の両端部が嵌め込まれた状態で包装箱に収容される。そして、緩衝体２５の外側壁２７及び内側壁２８と外端壁３０及び内端壁３１とが、それぞれの頂壁２９、３２で保持されている空間により外方からの衝撃を緩和するので、被包装物品が保護されることとなる。
【０００４】
【発明が解決しようとする課題】
ところが、このような緩衝体２５は、通常一枚の段ボールシートにより形成されるので、側壁と端壁とのそれぞれの頂壁２９、３２における段目が互いに平行となる。したがって、頂壁２９、３２の強度は、その段目が端壁と平行ならば、側壁から受ける外力に対しては高く、端壁から受ける外力に対しては低くなり、また、頂壁２９、３２の段目が側壁と平行ならば、端壁から受ける外力に対しては高く、側壁から受ける外力に対しては低くなる。このため、側壁側と端壁側からの衝撃をともに確実に緩和する緩衝体を段ボールシートにより形成することは困難で、環境的に良くない発泡スチロール等を使用しなければならない、という問題がある。
【０００５】
また、頂壁２９、３２の外力に対する強度は、緩衝体２５の緩衝能力に直接関係し、高すぎると被包装物品への衝撃があまり吸収されないし、低すぎると頂壁２９、３２が潰れて衝撃が被包装物品に直接伝わる。このため、緩衝力をより高めるためには、頂壁は適度な強度に設定されるとよい。
【０００６】
そこで、この発明は、側壁側と端壁側からの衝撃をともに確実に緩和する緩衝体を段ボールシートにより形成することを課題とする。
【０００７】
【課題を解決するための手段】
上記の課題を解決するために、この発明は、矩形の底壁の端縁から端壁を起立させ、この端壁の側縁に内面が当接する外側壁を上記底壁の側縁から起立させ、この外側壁の上縁から頂壁を介して内側に内側壁を折り返して形成した、底壁と端壁と内側壁とに囲まれた被包装物品の嵌込凹所を有する箱体と、この箱体の嵌込凹所に嵌まる内底壁の側縁に、下方に折り曲げられて上記内側壁の内面に重なる重合側壁を連設し、上記内底壁の端縁に、上方に折り曲げられて上記端壁の内面に重なる重合端壁を連設し、この重合端壁の側縁に、外方へ折り曲げられて上記端壁に形成した挿入スリットから突出する補強片を連設した内底体とからなり、上記箱体と内底体が、上記頂壁の段目が上記外側壁及び内側壁と直交し、上記補強片の段目が上記挿入スリットから突出する状態で上記端壁と直交するように、それぞれ一枚の段ボールシートにより形成して、包装用緩衝体を構成した。また、上記頂壁に、その段目に沿う方向の外力に対する強度を弱める切込部を設けてもよい。
【０００８】
さらに、内側壁の両側部を、補強片と重なった状態で挿入スリットから外方へ突出するようにしてもよい。
【０００９】
この発明に係る包装用緩衝体は、頂壁の段目が外側壁及び内側壁と直交すると共に、端壁から外方へ突出する補強片の段目が端壁と直交するので、頂壁と補強片が外力によりつぶれることがなく、側壁側と端壁側からの衝撃がともに確実に緩和される。また、頂壁にその段目に沿う方向の外力に対する強度を弱める切込部を設けると、外側壁又は内側壁からの外力に対して頂壁が適度な強度を有することとなるので、側壁側からの衝撃がより確実に緩和される。
【００１０】
【発明の実施の形態】
この発明に係る包装用緩衝体の実施の形態を、添付図面に基づいて説明する。図１に示す包装用緩衝体１は、被包装物品の端部が上方から嵌まる嵌込凹所４が形成された箱体２と、この箱体２の嵌込凹所４内に収容されて二重底を形成すると共に被包装物品の端面を受ける内底体３とからなり、箱体２と内底体３は、それぞれ一枚の段ボールシートの折り込みによって形成されている。
【００１１】
箱体２は、図１及び図２に示すように、矩形の底壁５と、この底壁５の側縁に順次連設された外側壁６、頂壁７、内側壁８及びスペーサー壁９と、上記底壁５の端縁に連設された端壁１０とからなり、嵌込凹所４は、底壁５と端壁１０と内側壁８とに囲まれている。
【００１２】
底壁５は、その中央部分に、貫孔１１が穿設されている。
【００１３】
外側壁６は、底壁５より幅広に形成され、起立状態で端壁１０の側縁に内面が当接するようになっている。また、外側壁６の両端部には、端壁１０の側縁に設けられた係止片１２を係止させる係止孔１３が穿設されている。
【００１４】
頂壁７は、外側壁６と同幅に形成されており、図１に示すように、段目が起立状態の外側壁６及び内側壁８と直交している。また、頂壁７には、その段目に沿う方向の外力に対する強度を弱めるために、Ｖ字形と円弧形の切込部１４、１５がそれぞれ設けられている。円弧形の切込部１５は、図１に示す組立状態においては、切り起こされて貫通孔１６を形成し、この貫通孔１６が衝撃の吸収力を一層高めている。
【００１５】
内側壁８は、図３に示すように、頂壁７を介して内側に折り返されて、外側壁６と間隔をあけて対向する。また、内側壁８の頂壁７との境目部分には、両側から切欠部１７が形成されており、この切欠部１７により、内側壁８の両端部が、端壁１０に形成した挿入スリット１８から外方へ突出することとなる。
【００１６】
スペーサー壁９は、頂壁７とほぼ同じ奥行きになるよう形成されており、図３に示すように、外方に折り曲げられ底壁５の内面に重ね合わされた状態で、外側壁６の内面に当接して外側壁６と内側壁８の間隔を保持している。
【００１７】
端壁１０は、図１及び図２に示すように、先端縁に、互いに重なった状態で頂壁７の下面に当接する一対の重合片１９、１９が順次連設されている。
【００１８】
内底体３は、図１及び図４に示すように、箱体２の嵌込凹所４にぴったりと嵌まる形状寸法の内底壁２０と、この内底壁２０の側縁から下方に折り曲げられて上記箱体２の内側壁８の内面に重なる重合側壁２１と、上記内底壁２０の端縁から上方に折り曲げられて上記箱体２の端壁１０の内面に重なる重合端壁２２と、この重合端壁２２の側縁から外方へ折り曲げられて、図５に示すように上記内側壁８の両端部内面と重なり合った状態で上記端壁１０の挿入スリット１８から突出する補強片２３とからなる。
【００１９】
内底壁２０は、その中央を挟む一対の貫孔２４が穿設されており、重合側壁２１の先端が箱体２の底壁５の内面に当接することによって、底壁５から間隔をあけて位置して緩衝体１の衝撃吸収用の二重底を形成している。
【００２０】
重合側壁２１は、その段目が上記内側壁８と重なった状態で上下方向に延びており、被包装物品の重みに充分耐え得るようになっている。
【００２１】
また、補強片２３は、挿入スリット１８から突出する状態においては、図１及び図５に示すように、その段目が箱体２の端壁１０と直交しているので、緩衝体１は、端壁１０側からの外力に対する強度が高められることとなる。
【００２２】
この包装用緩衝体１は、図５に示すように、頂壁７が外側壁６及び内側壁８と直交する段目を備え、補強片２３が端壁１０と直交する段目を備えているので、側壁及び端壁部分の強度が充分確保されて側壁６、８側と端壁１０側からの衝撃がともに確実に緩和される。また、頂壁にその段目に沿う方向の外力に対する強度を弱める切込部１４、１５が設けられているので、頂壁７の強度が適度となって側壁６、８側からの外力が側壁６、８により効果的に吸収される。さらに、この包装用緩衝体１は、外側壁６及び内側壁８が端壁１０と平行な段目を備え、補強片２３が端壁１０と直交する段目を備えているので、端壁部分の強度が適度となって、端壁１０側からの外力が外側壁６及び内側壁８の両端部と補強片２３とにより受け止められて効果的に吸収される。
【００２３】
なお、図４に示す内底体３における、重合側壁２１の内底壁２０との境目部分（内底壁２０の側縁と、重合側壁２１の一点鎖線とで挟まれる部分）の中芯の波型を押し潰し、内底体３にいわゆる段潰しを施すと、包装用緩衝体１の緩衝性が向上する。このとき、重合端壁２２は、図５に示すように、箱体２の端壁１０の内面に重なった状態で、上記内側壁８の内面に重なる補強片２３が挿入スリット１８から外方へ突出しているので、段潰しによる内底壁２０の沈み込みを防止することとなる。
【００２４】
【効果】
この発明に係る包装用緩衝体は、側壁側及び端壁側からの外力をともに効果的に吸収できるので、衝撃を確実に緩和して被包装物品を保護することができる。また、この包装用緩衝体は、段ボールシートの折り込みにより形成されているので、廃棄による環境悪化の問題が発生しない。
【図面の簡単な説明】
【図１】この発明の包装用緩衝体の実施の一形態を示す分解斜視図
【図２】箱体の展開図
【図３】箱体の組立途中の斜視図
【図４】内底体の展開図
【図５】上記包装用緩衝体の斜視図
【図６】従来の包装用緩衝体の斜視図
【符号の説明】
１包装用緩衝体
２箱体
３内底体
４、３３嵌込凹所
５底壁
６外側壁
７頂壁
８内側壁
９スペーサー壁
１０端壁
１１、２４貫孔
１２係止片
１３係止孔
１４、１５切込部
１６貫通孔
１７切欠部
１８挿入スリット
１９重合片
２０内底壁
２１重合側壁
２２重合端壁
２３補強片
２５従来の包装用緩衝体
２６底壁
２７外側壁
２８内側壁
２９、３２頂壁
３０外端壁
３１内端壁[0001]
BACKGROUND OF THE INVENTION
The present invention is formed in a box shape having an insertion recess for a packaged article, and the packaged article is accommodated in the packaging box with the end of the packaged article fitted in the insertion recess. The present invention relates to a shock absorber that protects against impact.
[0002]
[Prior art]
Conventionally, as such a shock absorber, there is one described in registered utility model publication No. 300008129. As shown in FIG. 6, this shock absorber has inner and outer double bottom walls 26, side walls, and end walls, respectively. It is formed in the box which consists of. The side wall of the packaging buffer 25 is composed of a top wall 29 and an outer wall 27 and an inner wall 28 which are folded back via the top wall 29 and face each other with a space therebetween. Similarly, it consists of a top wall 32, an outer end wall 30, and an inner end wall 31. The insertion recess 33 of the packaging buffer 25 is surrounded by the bottom wall 26, the inner wall 28, and the inner end wall 31.
[0003]
The cushioning body 25 for packaging is normally used in a pair, and is accommodated in the packaging box in a state where both ends of the article to be packaged are fitted in the respective fitting recesses 33. And since the outer wall 27 and the inner wall 28 of the buffer body 25 and the outer end wall 30 and the inner end wall 31 alleviate the impact from the outside by the spaces held by the respective top walls 29 and 32, The packaged article will be protected.
[0004]
[Problems to be solved by the invention]
However, such a buffer body 25 is usually formed of a single corrugated cardboard sheet, so that the steps on the top walls 29 and 32 of the side wall and the end wall are parallel to each other. Therefore, if the step is parallel to the end wall, the strength of the top walls 29 and 32 is high with respect to the external force received from the side wall, and is low with respect to the external force received from the end wall. If the 32nd stage is parallel to the side wall, the external force received from the end wall is high, and the external force received from the side wall is low. For this reason, it is difficult to form a cushioning body that reliably relieves impacts from the side wall side and the end wall side by using a corrugated cardboard sheet, and there is a problem that it is necessary to use a polystyrene foam that is not environmentally good.
[0005]
In addition, the strength of the top walls 29 and 32 against the external force is directly related to the buffering capacity of the buffer body 25. If it is too high, the impact on the packaged article is not absorbed so much, and if it is too low, the top walls 29 and 32 are crushed. The impact is transmitted directly to the packaged article. For this reason, in order to raise buffering force more, a top wall is good to set to moderate intensity | strength.
[0006]
In view of the above, an object of the present invention is to form a shock-absorbing body that reliably relieves impacts from the side wall side and the end wall side, using a corrugated cardboard sheet.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention raises an end wall from an end edge of a rectangular bottom wall, and raises an outer wall whose inner surface abuts on the side edge of the end wall from the side edge of the bottom wall. A box having an insertion recess of a packaged article surrounded by a bottom wall, an end wall, and an inner wall, formed by folding the inner wall from the upper edge of the outer wall to the inside through the top wall; A side wall of the inner bottom wall that fits into the insertion recess of the box is connected to a side wall that overlaps with the inner surface of the inner wall, and is bent upward to the edge of the inner bottom wall. The inner wall of the end wall overlapped with the inner wall of the end wall, and a reinforcing piece protruding from the insertion slit formed in the end wall is formed on the side edge of the end wall. The box body and the inner bottom body, the step of the top wall is perpendicular to the outer wall and the inner wall, and the step of the reinforcing piece is the insertion So as to be perpendicular to the end wall in a state projecting from the slit, formed by a single cardboard sheet, respectively, to constitute a cushioning member. Moreover, you may provide the notch part which weakens the intensity | strength with respect to the external force of the direction in alignment with the said top wall in the said top wall.
[0008]
Furthermore, you may make it protrude the both sides of an inner side wall from an insertion slit in the state which overlapped with the reinforcement piece.
[0009]
In the packaging buffer according to the present invention, the top wall is orthogonal to the outer wall and the inner wall, and the step of the reinforcing piece protruding outward from the end wall is orthogonal to the end wall. The reinforcing piece is not crushed by an external force, and the impact from the side wall side and the end wall side is reliably alleviated. Also, if the top wall is provided with a notch that weakens the strength against the external force in the direction along the step, the top wall has an appropriate strength with respect to the external force from the outer wall or the inner wall. The shock from is more reliably mitigated.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a packaging buffer according to the present invention will be described with reference to the accompanying drawings. A packaging cushion 1 shown in FIG. 1 is accommodated in a box 2 in which an insertion recess 4 into which an end of a packaged article is fitted from above is formed, and an insertion recess 4 of the box 2. The inner bottom body 3 that forms the double bottom and receives the end face of the article to be packaged, and the box body 2 and the inner bottom body 3 are each formed by folding one cardboard sheet.
[0011]
As shown in FIGS. 1 and 2, the box 2 includes a rectangular bottom wall 5, an outer wall 6, a top wall 7, an inner wall 8, and a spacer wall 9 that are successively connected to the side edges of the bottom wall 5. And the end wall 10 connected to the end edge of the bottom wall 5, and the fitting recess 4 is surrounded by the bottom wall 5, the end wall 10, and the inner wall 8.
[0012]
The bottom wall 5 has a through hole 11 formed in the center portion thereof.
[0013]
The outer side wall 6 is formed wider than the bottom wall 5, and the inner surface is in contact with the side edge of the end wall 10 in a standing state. Further, locking holes 13 for locking locking pieces 12 provided on the side edges of the end wall 10 are formed at both ends of the outer wall 6.
[0014]
The top wall 7 is formed to have the same width as the outer wall 6, and as shown in FIG. 1, the step is orthogonal to the outer wall 6 and the inner wall 8 in a standing state. Moreover, in order to weaken the intensity | strength with respect to the external force of the direction along the step | paragraph in the top wall 7, the V-shaped and circular arc shaped notch parts 14 and 15 are each provided. In the assembled state shown in FIG. 1, the arc-shaped cut portion 15 is cut and raised to form a through hole 16, and the through hole 16 further enhances the impact absorbing power.
[0015]
As shown in FIG. 3, the inner wall 8 is folded inward via the top wall 7 and faces the outer wall 6 with a gap. Further, a notch 17 is formed from both sides at the boundary between the inner wall 8 and the top wall 7, and the both ends of the inner wall 8 are inserted into the slit 18 formed in the end wall 10 by the notch 17. Will protrude outwards.
[0016]
The spacer wall 9 is formed so as to have substantially the same depth as the top wall 7, and is folded outward and overlapped with the inner surface of the bottom wall 5 as shown in FIG. The space between the outer wall 6 and the inner wall 8 is maintained by contact.
[0017]
As shown in FIGS. 1 and 2, the end wall 10 has a pair of overlapping pieces 19, 19 that are in contact with the lower surface of the top wall 7 in a state of being overlapped with each other.
[0018]
As shown in FIGS. 1 and 4, the inner bottom body 3 has an inner bottom wall 20 having a shape and dimension that fits snugly into the insertion recess 4 of the box 2, and downward from a side edge of the inner bottom wall 20. A superposed side wall 21 that is bent and overlaps the inner surface of the inner side wall 8 of the box 2, and a superposed end wall 22 that is bent upward from the edge of the inner bottom wall 20 and overlaps the inner surface of the end wall 10 of the box 2. And a reinforcing piece which is bent outward from the side edge of the overlapping end wall 22 and protrudes from the insertion slit 18 of the end wall 10 in a state where it overlaps with the inner surfaces of both ends of the inner wall 8 as shown in FIG. 23.
[0019]
The inner bottom wall 20 has a pair of through-holes 24 sandwiching the center thereof, and the tip of the overlapping side wall 21 is in contact with the inner surface of the bottom wall 5 of the box 2 so as to be spaced from the bottom wall 5. The double bottom for absorbing the shock of the shock absorber 1 is formed.
[0020]
The overlapping side wall 21 extends in the vertical direction in a state where the step overlaps the inner side wall 8 and can sufficiently withstand the weight of the article to be packaged.
[0021]
Further, in the state where the reinforcing piece 23 protrudes from the insertion slit 18, the step is perpendicular to the end wall 10 of the box 2, as shown in FIGS. The strength against the external force from the end wall 10 side is increased.
[0022]
As shown in FIG. 5, the packaging buffer 1 includes a step in which the top wall 7 is orthogonal to the outer wall 6 and the inner wall 8, and a reinforcing piece 23 is provided in a step orthogonal to the end wall 10. Therefore, the strength of the side wall and the end wall portion is sufficiently secured, and the impacts from the side walls 6 and 8 side and the end wall 10 side are alleviated with certainty. Moreover, since the notches 14 and 15 which weaken the intensity | strength with respect to the external force of the direction along the step are provided in the top wall, the intensity | strength of the top wall 7 becomes moderate and the external force from the side walls 6 and 8 side is side wall. 6 and 8 are effectively absorbed. Further, the packaging buffer 1 has an outer wall 6 and an inner wall 8 provided with a step parallel to the end wall 10 and a reinforcing piece 23 provided with a step orthogonal to the end wall 10, so that the end wall portion Is moderately received, and the external force from the end wall 10 side is received by the both ends of the outer wall 6 and the inner wall 8 and the reinforcing piece 23 and effectively absorbed.
[0023]
In addition, in the inner bottom body 3 shown in FIG. 4, the center part of the boundary between the overlapping side wall 21 and the inner bottom wall 20 (the portion sandwiched between the side edge of the inner bottom wall 20 and the one-dot chain line of the overlapping side wall 21). When the corrugated shape is crushed and the inner bottom body 3 is so-called crushed, the cushioning property of the packaging cushion 1 is improved. At this time, as shown in FIG. 5, the overlapping end wall 22 is overlapped with the inner surface of the end wall 10 of the box 2, and the reinforcing piece 23 that overlaps the inner surface of the inner wall 8 is outward from the insertion slit 18. Since it protrudes, the inner bottom wall 20 is prevented from sinking due to stepping.
[0024]
【effect】
Since the packaging buffer according to the present invention can effectively absorb both external forces from the side wall side and the end wall side, it is possible to reliably reduce the impact and protect the article to be packaged. Moreover, since this packaging buffer is formed by folding a corrugated cardboard sheet, the problem of environmental deterioration due to disposal does not occur.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an embodiment of a packaging buffer according to the present invention. FIG. 2 is a developed view of a box. FIG. 3 is a perspective view in the middle of assembling the box. FIG. 5 is a perspective view of the packaging buffer body. FIG. 6 is a perspective view of a conventional packaging buffer body.
DESCRIPTION OF SYMBOLS 1 Packing buffer 2 Box 3 Inner bottom body 4,33 Insertion recessed part 5 Bottom wall 6 Outer side wall 7 Top wall 8 Inner side wall 9 Spacer wall 10 End wall 11, 24 Through-hole 12 Locking piece 13 Locking hole 14, 15 Cut portion 16 Through hole 17 Notch portion 18 Insert slit 19 Polymerized piece 20 Inner bottom wall 21 Polymerized side wall 22 Polymerized end wall 23 Reinforcing piece 25 Conventional packaging buffer 26 Bottom wall 27 Outer side wall 28 Inner side wall 29, 32 Top wall 30 Outer end wall 31 Inner end wall

Claims

The end wall is erected from the edge of the rectangular bottom wall, the outer wall whose inner surface abuts on the side edge of the end wall is erected from the side edge of the bottom wall, and the upper wall of the outer wall is passed through the top wall. A box body having an insertion recess for a packaged article surrounded by a bottom wall, an end wall, and the inner wall, and an inner bottom that fits in the insertion recess of the box, A polymerization side wall that is bent downward and overlaps the inner surface of the inner wall is connected to the side edge of the wall, and a polymerization end wall that is bent upward and overlaps the inner surface of the end wall is provided at the edge of the inner bottom wall. The box body and the inner bottom body are formed by connecting a reinforcing piece projecting from an insertion slit formed on the end wall by being bent outwardly on the side edge of the overlapping end wall. However, the step of the top wall is perpendicular to the outer wall and the inner wall, and the step of the reinforcing piece projects directly from the insertion slit with the step protruding from the insertion slit. To way, each formed by a single corrugated cardboard sheet, in the top wall, the cushioning member provided with a notch portion of the V-shaped weakening the strength against the external force direction along the stage.

The packaging buffer according to claim 1, wherein both end portions of the inner wall protrude outward from the insertion slit in a state where the both end portions overlap the reinforcing piece.