JP2012192963A - Cushioning material, and packing box - Google Patents

Cushioning material, and packing box Download PDF

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JP2012192963A
JP2012192963A JP2011059244A JP2011059244A JP2012192963A JP 2012192963 A JP2012192963 A JP 2012192963A JP 2011059244 A JP2011059244 A JP 2011059244A JP 2011059244 A JP2011059244 A JP 2011059244A JP 2012192963 A JP2012192963 A JP 2012192963A
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cushioning material
wing
valley
peak
energy
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JP5686007B2 (en
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Masanori Ueda
正則 上田
Juichi Furui
寿一 古井
Shusaku Nishiyama
秀作 西山
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Fujitsu Ltd
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Fujitsu Ltd
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Abstract

PROBLEM TO BE SOLVED: To reduce a size of a cushioning material and absorb energy of a wide range simultaneously.SOLUTION: The cushioning material arranged along an inner circumferential surface of the packing box includes a peak part and a valley part, which are alternately formed, and a wing part continuously formed to a connection part for connecting the peak part and the valley part on an inner side of the peak part. The wing part includes a first edge part positioned inward from a line linking the two adjacent valley parts. The first edge part forms a clearance with an inner circumferential wall of the packing box when it is arranged in the packing box. The cushioning material has a wave shape formed by continuing the peak part and the valley part. When the wave shape is elongated and contracted, an impact of small energy such as vibration is absorbed. In addition, when the wing part is plastically deformed, drop impact or the like of large energy is absorbed.

Description

本発明は、梱包箱に物品と共に収容される緩衝材及び梱包箱に関する。   The present invention relates to a cushioning material and a packaging box that are accommodated together with articles in a packaging box.

従来、ダンボール板紙を波状に交互に折り曲げた緩衝部材を物品の底面に非接着で配置した梱包箱が知られている（例えば、特許文献１）。波状の緩衝部材は、衝撃を受けたときに伸縮することにより垂直方向の衝撃力を分散することができるとしている。   2. Description of the Related Art Conventionally, a packaging box is known in which cushioning members obtained by alternately folding corrugated cardboard are disposed on the bottom surface of an article in a non-adhesive manner (for example, Patent Document 1). The wavy shock absorbing member can disperse the impact force in the vertical direction by expanding and contracting when receiving an impact.

特開２００２−２５５１５７号公報JP 2002-255157 A

ところで、山部と谷部が交互に配置された波形の緩衝材は、その材質や形状によって緩衝材全体としての固有のばね定数を有する。物品の振動および衝撃エネルギを、ばね変形により吸収し、物品の損傷を低減する。しかしながら、物品が収容された梱包箱が受けるエネルギの範囲は広い。例えば、輸送時に受ける振動はエネルギが小さい。一方、落下衝撃の場合のエネルギは大きい。このため、従来の波形の緩衝材が広範囲のエネルギ吸収を受け持つこととすると、以下のような問題が生じることがある。   By the way, the corrugated cushioning material in which peaks and valleys are alternately arranged has an inherent spring constant as the entire cushioning material depending on the material and shape thereof. The vibration and impact energy of the article is absorbed by the spring deformation to reduce damage to the article. However, the range of energy received by the packaging box containing the articles is wide. For example, the vibration received during transportation has low energy. On the other hand, the energy in the case of a drop impact is large. For this reason, if the conventional corrugated cushioning material is responsible for a wide range of energy absorption, the following problems may occur.

例えば、緩衝材の固有のばね定数が小さい場合、輸送時の振動に対しては、梱包箱の振動が絶縁され、振動は内容物である物品に伝わりにくい。このため、長時間の振動による物品の損傷を低減することができる。しかしながら、エネルギが大きい落下衝撃にも対応しようとすると、エネルギ吸収に必要とする伸縮量が大きくなるため、緩衝材が大型化する問題がある。   For example, when the intrinsic spring constant of the cushioning material is small, the vibration of the packaging box is insulated from the vibration during transportation, and the vibration is difficult to be transmitted to the article as the contents. For this reason, damage to the article due to long-time vibration can be reduced. However, when trying to cope with a drop impact with large energy, the amount of expansion and contraction required for energy absorption increases, and there is a problem that the cushioning material is enlarged.

一方、緩衝材の固有のばね定数が大きい場合、輸送時の振動に対しては、梱包箱の振動が内容物である物品に直接伝わりやすい。このため、梱包箱が長時間の振動に曝されると物品の損傷が大きくなる。加えて、エネルギ吸収に必要とする伸縮量は小さくなるため、緩衝材の小型化を図れるが、物品に加わる力は大きくなる。すなわち、ばね定数が大きいほど、梱包箱が落下したときに内容物である物品に大きな加速度Ｇ値が加わるため、物品の損傷が大きくなる。   On the other hand, when the intrinsic spring constant of the cushioning material is large, the vibration of the packaging box is easily transmitted directly to the article as the contents against the vibration during transportation. For this reason, if the packaging box is exposed to vibration for a long time, the damage to the article increases. In addition, since the amount of expansion and contraction required for energy absorption is reduced, the cushioning material can be reduced in size, but the force applied to the article is increased. That is, the larger the spring constant, the larger the acceleration G value is applied to the article as the contents when the packaging box is dropped, so that the article is more damaged.

そこで、本明細書開示の緩衝材は、小型化と広範囲のエネルギ吸収の両立を課題とする。   Therefore, the cushioning material disclosed in this specification has a problem of achieving both a reduction in size and a wide range of energy absorption.

本明細書開示の緩衝材は、梱包箱の内周面に沿って配置される緩衝材であって、交互に設けられた山部及び谷部と、前記山部の内側に、前記山部と谷部とを接続する縁部に連続して設けられた翼状部と、を備え、前記翼状部は、隣接する二つの前記谷部を結ぶ線分よりも内側に位置する縁部を備えたことを特徴とする。   The cushioning material disclosed in the present specification is a cushioning material arranged along the inner peripheral surface of the packaging box, and the ridges and valleys provided alternately, the ridges on the inside of the ridges, A wing-like portion provided continuously to an edge connecting the valley, and the wing-like provided with an edge located inside a line segment connecting the two adjacent valleys. It is characterized by.

山部と谷部が連続することによって、緩衝材の伸縮が可能となり、弾性が発揮され、輸送時の振動のようなエネルギの小さい微小振動を効率よく吸収することができる。翼状部は、落下衝撃のようなエネルギが大きいときに塑性変形することによってエネルギを吸収する。翼状部は、隣接する二つの前記谷部を結ぶ線分よりも内側に位置する縁部を備える。これにより、谷部を梱包箱の内周面に対向させて梱包箱内に配置したときに、翼状部と内周面との間に隙間を形成することができる。これにより、緩衝材の山部と谷部が連続する方向への伸縮が許容される。   When the crest and trough are continuous, the cushioning material can be expanded and contracted, elasticity is exhibited, and minute vibrations with small energy such as vibration during transportation can be efficiently absorbed. The wing-like portion absorbs energy by plastic deformation when energy such as a drop impact is large. The wing-like portion includes an edge portion located on the inner side of a line segment connecting two adjacent valley portions. Thereby, a gap can be formed between the wing-like portion and the inner peripheral surface when the valley portion is disposed in the packing box so as to face the inner peripheral surface of the packing box. Thereby, the expansion-contraction to the direction where the peak part and trough part of a shock absorbing material continue is accept | permitted.

このように、本明細書開示の緩衝材は、伸縮による弾性変形により小さいエネルギを吸収する部分と、翼状部の塑性変形により大きいエネルギを吸収する部分とを分けることにより、小型であるにも拘らず、広範囲のエネルギ吸収を可能としている。   As described above, the cushioning material disclosed in this specification is small in size by separating the portion that absorbs smaller energy into elastic deformation due to expansion and contraction and the portion that absorbs larger energy into plastic deformation of the wing-like portion. Therefore, a wide range of energy absorption is possible.

本明細書開示の緩衝材によれば、緩衝材の小型化と広範囲のエネルギ吸収を実現することができる。   According to the cushioning material disclosed in the present specification, it is possible to realize a reduction in size of the cushioning material and a wide range of energy absorption.

図１は、周囲に実施例１の緩衝材が配置された物品を梱包箱に収容する様子を示す説明図である。FIG. 1 is an explanatory diagram illustrating a state in which an article having the cushioning material of Example 1 disposed therein is accommodated in a packing box. 図２は、緩衝材が配置された梱包箱に他の緩衝材が収納される様子を説明する説明図である。FIG. 2 is an explanatory view for explaining a state in which another cushioning material is stored in the packing box in which the cushioning material is arranged. 図３は、緩衝材の一部を拡大して示す斜視図である。FIG. 3 is an enlarged perspective view showing a part of the cushioning material. 図４は、梱包箱の内周面の一つである底面に緩衝材を配置した様子を模式的に説明する説明図である。FIG. 4 is an explanatory diagram schematically illustrating a state in which the cushioning material is arranged on the bottom surface that is one of the inner peripheral surfaces of the packaging box. 図５は、緩衝材の展開図となる型紙の一例を説明する説明図である。FIG. 5 is an explanatory diagram for explaining an example of a paper pattern that is a developed view of the cushioning material. 図６は、型紙を折り曲げて緩衝材を形成する工程を説明する図であり、図６（Ａ）は型紙を準備した状態を説明する図であり、図６（Ｂ）は突起部を折り曲げる工程を説明する説明図であり、図６（Ｃ）は緩衝材を完成させる工程を説明する説明図である。6A and 6B are diagrams illustrating a process of forming a cushioning material by folding a pattern, FIG. 6A is a diagram illustrating a state in which the pattern is prepared, and FIG. 6B is a process of bending a protrusion. FIG. 6C is an explanatory diagram illustrating a process of completing the cushioning material. 図７は、梱包箱にエネルギが小さい振動が加わったときの緩衝材の動きを説明する説明図であり、図７（Ａ）は緩衝材に振動が加わっていない状態を説明する説明図であり、図７（Ｂ）は緩衝材が伸びた状態を説明する説明図である。FIG. 7 is an explanatory diagram for explaining the movement of the cushioning material when vibration with low energy is applied to the packing box, and FIG. 7 (A) is an explanatory diagram for explaining a state in which no vibration is applied to the cushioning material. FIG. 7B is an explanatory diagram for explaining a state in which the cushioning material is extended. 図８は、梱包箱にエネルギが大きい衝撃が加わったときの緩衝材の動きを説明する説明図である。FIG. 8 is an explanatory diagram for explaining the movement of the cushioning material when an impact with large energy is applied to the packing box. 図９は、翼状部の角部が塑性変形した状態を説明する説明図である。FIG. 9 is an explanatory diagram for explaining a state where the corner portion of the wing-like portion is plastically deformed. 図１０（Ａ）は、実施例２の緩衝材の展開図となる型紙を説明する説明図であり、図１０（Ｂ）は、実施例２の緩衝材を説明する斜視図である。FIG. 10A is an explanatory diagram for explaining a pattern paper as a development view of the cushioning material of the second embodiment, and FIG. 10B is a perspective view for explaining the cushioning material of the second embodiment. 図１１は、実施例３の緩衝材の展開図となる型紙を説明する説明図である。FIG. 11 is an explanatory diagram for explaining a paper pattern that is a developed view of the cushioning material according to the third embodiment. 図１２（Ａ）は他の緩衝材が備える翼状部の形状を説明図であり、図１２（Ｂ）はさらに他の緩衝材が備える翼状部の形状を説明図である。FIG. 12A is an explanatory diagram illustrating the shape of a wing-like part included in another shock-absorbing material, and FIG. 12B is an explanatory diagram illustrating the shape of a wing-like part included in another shock-absorbing material.

以下、本発明の実施形態について、添付図面を参照しつつ説明する。ただし、図面中、各部の寸法、比率等は、実際のものと完全に一致するようには図示されていない場合がある。   Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, in the drawings, the dimensions, ratios, and the like of each part may not be shown so as to completely match the actual ones.

実施例１の緩衝材１０、２０、３０について図面を参照しつつ説明する。図１は、周囲に実施例１の緩衝材１０、２０、３０が配置された物品１を梱包箱２に収容する様子を示す説明図である。図２は、緩衝材２０、３０が配置された梱包箱２に緩衝材１０が収納される様子を説明する説明図である。図３は、緩衝材１０の一部を拡大して示す斜視図である。図４は、梱包箱２の内周面２ａの一つである底面に緩衝材１０を配置した様子を模式的に説明する説明図である。   The cushioning materials 10, 20, and 30 of Example 1 will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing a state in which an article 1 in which the cushioning materials 10, 20, and 30 according to the first embodiment are arranged is housed in a packing box 2. FIG. 2 is an explanatory view for explaining a state in which the cushioning material 10 is stored in the packaging box 2 in which the cushioning materials 20 and 30 are arranged. FIG. 3 is an enlarged perspective view showing a part of the cushioning material 10. FIG. 4 is an explanatory diagram schematically illustrating a state in which the cushioning material 10 is disposed on the bottom surface which is one of the inner peripheral surfaces 2 a of the packaging box 2.

図１で説明されるように、梱包対象物となる物品１は、その６面を囲うように緩衝材１０、２０、３０が配置され、梱包箱２内へ収納される。一対となった緩衝材１０が対向して配置され、一対となった緩衝材２０が対向して配置される。さらに、一対となった緩衝材３０が対向して配置される。緩衝材１０、２０、３０は、図２に説明されるように、それぞれ梱包箱２の内周面２ａに沿って配置される。緩衝材１０、２０、３０は、物品１を梱包箱２内で所定の位置に保持すると共に、梱包箱２に外部から加わる種々の振動、衝撃によるエネルギを吸収する。緩衝材１０、２０、３０は、物品の形状、寸法及び梱包箱２内に配置される位置に応じて、異なる寸法を有するが、同様の構成要素を備える。以後の具体的な説明は、代表して緩衝材１０について行う。   As illustrated in FIG. 1, a cushioning material 10, 20, and 30 is disposed so as to surround the six surfaces of an article 1 that is an object to be packed, and is stored in a packaging box 2. A pair of cushioning materials 10 are disposed to face each other, and a pair of cushioning materials 20 are disposed to face each other. Further, a pair of cushioning materials 30 are arranged to face each other. As illustrated in FIG. 2, the cushioning materials 10, 20, and 30 are each disposed along the inner peripheral surface 2 a of the packaging box 2. The cushioning materials 10, 20, and 30 hold the article 1 at a predetermined position in the packaging box 2 and absorb energy from various vibrations and impacts applied to the packaging box 2 from the outside. The cushioning materials 10, 20, and 30 have different dimensions depending on the shape and size of the article and the position in the packaging box 2, but include similar components. The following specific description will be made on the cushioning material 10 as a representative.

緩衝材１０は、図３に説明されるように、交互に設けられた山部１１及び谷部１２を備えている。交互に山部１１と谷部１２が設けられることにより、隣接する二つの谷部１２と、その間に位置する一つの山部１１とで一つの三角形が形成されている。そして連続する波形が形成されている。緩衝材１０は、山部１１の内側に、山部１１と谷部１２とを接続する縁部１３に連続して設けられた翼状部１４を備えている。この翼状部１４は、隣接する二つの谷部１２を結ぶ線分Ｌ１よりも内側に位置する第１の縁部１４ａを備えている。なお、本明細書において山部１１と谷部１２が連続する方向をＸ方向、山部１１と谷部１２が連続する方向と直交する方向をＹ方向とする。   As illustrated in FIG. 3, the cushioning material 10 includes crests 11 and troughs 12 provided alternately. By alternately providing the crests 11 and the troughs 12, two triangles 12 adjacent to each other and one crest 11 located between them form one triangle. A continuous waveform is formed. The cushioning material 10 includes a wing-like portion 14 that is continuously provided on the inner side of the peak portion 11 and the edge portion 13 that connects the peak portion 11 and the valley portion 12. The wing-like portion 14 includes a first edge portion 14a located on the inner side of a line segment L1 connecting two adjacent valley portions 12. In this specification, the direction in which the peaks 11 and the valleys 12 are continuous is defined as the X direction, and the direction orthogonal to the direction in which the peaks 11 and the valleys 12 are continuous is defined as the Y direction.

緩衝材１０が梱包箱２内に配置されたとき、二つの谷部１２を結ぶ線分Ｌ１は、内周面２ａ上に位置する。第１の縁部１４ａが、線分Ｌ１よりも内側、すなわち、隣接する二つの谷部１２の間に位置する山部１１に近い側に位置することにより、第１の縁部１４ａと内周面２ａとの間に隙間Ｓ１が形成されている。   When the cushioning material 10 is disposed in the packaging box 2, the line segment L1 connecting the two valleys 12 is located on the inner peripheral surface 2a. Since the first edge portion 14a is located on the inner side of the line segment L1, that is, on the side closer to the peak portion 11 located between the two adjacent valley portions 12, the first edge portion 14a and the inner circumference A gap S1 is formed between the surface 2a.

翼状部１４は、一の山部１１から延びる二つの縁部１３のそれぞれに設けられている。すなわち、一の山部１１と二つの谷部１２とによって形成される三角形内に二つの翼状部１４が設けられている。そして、この二つの翼状部１４の間、具体的には第２の縁部１４ｂの間には隙間Ｓ２が形成されている。   The wing-like portion 14 is provided on each of the two edge portions 13 extending from the one peak portion 11. That is, two wing-like parts 14 are provided in a triangle formed by one peak part 11 and two valley parts 12. A gap S2 is formed between the two wing-like parts 14, specifically between the second edge parts 14b.

図４に説明するように、山部１１は、物品１に当接し、物品１を支持する。谷部１２は、梱包箱２の内周面２ａに対向し、内周面２ａに当接する。   As illustrated in FIG. 4, the mountain portion 11 abuts on the article 1 and supports the article 1. The trough 12 faces the inner peripheral surface 2a of the packaging box 2 and abuts on the inner peripheral surface 2a.

緩衝材１０の両端の山部１１１には、翼状部１４が設けられていない。緩衝材は、伸縮自在であるが、梱包箱２内に配置された状態では、その全長は箱２の内周面の長さと一致する。後に詳述するように、緩衝材１０は、伸びることによりエネルギ吸収する。緩衝材１０の両端の山部１１１は、このようにエネルギ吸収のために緩衝材１０の一部が伸びたときに収縮して緩衝材１０の全長を維持する役割を有する。このように、翼状部１４が設けられていない山部１１１は緩衝材１０の両側に設けてもよいが、片側だけであってもよい。   Wings 14 are not provided at the peaks 111 at both ends of the cushioning material 10. Although the cushioning material is extendable and contractible, the total length of the cushioning material coincides with the length of the inner peripheral surface of the box 2 in a state where the cushioning material is disposed in the packaging box 2. As will be described in detail later, the cushioning material 10 absorbs energy by stretching. The crest portions 111 at both ends of the cushioning material 10 have a role of contracting and maintaining the entire length of the cushioning material 10 when a part of the cushioning material 10 is extended for energy absorption. Thus, although the peak part 111 in which the wing-like part 14 is not provided may be provided in the both sides of the shock absorbing material 10, it may be only in one side.

つぎに、このような緩衝材１０の組み立てについて図５、図６（Ａ）、図６（Ｂ）及び図６（Ｃ）を参照して説明する。図５は、緩衝材１０の展開図となる型紙１５の一例を説明する説明図である。図６は、型紙１５を折り曲げて緩衝材１０を形成する工程を説明する図であり、図６（Ａ）は型紙１５を準備した状態を説明する図である。図６（Ｂ）は突起部１８を折り曲げる工程を説明する説明図である。図６（Ｃ）は緩衝材１０を完成させる工程を説明する説明図である。   Next, assembly of the cushioning material 10 will be described with reference to FIGS. 5, 6 (A), 6 (B), and 6 (C). FIG. 5 is an explanatory view illustrating an example of a pattern 15 that is a developed view of the cushioning material 10. FIG. 6 is a diagram illustrating a process of forming the cushioning material 10 by bending the pattern paper 15, and FIG. 6A is a diagram illustrating a state in which the pattern paper 15 is prepared. FIG. 6B is an explanatory diagram illustrating a process of bending the protrusion 18. FIG. 6C is an explanatory diagram illustrating a process of completing the cushioning material 10.

型紙１５は、紙製、具体的にはダンボール板紙であり、各部を折り曲げることによって緩衝材１０を形成することができる。型紙１５は、交互に連続して配置された山折部１６及び谷折部１７を備えている。山折部１６は完成した緩衝材１０の山部１１に相当する。谷折部１７は完成後の緩衝材１０の谷部１２に相当する。型紙１５は、山折部１６及び谷折部１７が連続する方向であるＸ方向に沿った辺縁に折り曲げ線Ｌ２を介して設けられた突起部１８を備えている。   The pattern paper 15 is made of paper, specifically cardboard board, and the cushioning material 10 can be formed by bending each part. The pattern paper 15 includes mountain folds 16 and valley folds 17 that are alternately and continuously arranged. The mountain fold 16 corresponds to the mountain 11 of the completed cushioning material 10. The valley fold 17 corresponds to the valley 12 of the cushioning material 10 after completion. The pattern paper 15 is provided with a protrusion 18 provided on the edge along the X direction, which is a direction in which the mountain fold 16 and the valley fold 17 are continuous, via a fold line L2.

突起部１８は、三角形状を有し、その三角形状の二つの角部が折り曲げ線Ｌ２上に位置し、接続端部１８ａ、１８ｂを形成している。また、三角形状の突起部１８は、それぞれの谷折部１７に近い側の辺部１８ｃを備える、この辺部１８ｃは、組み立て後の第１の縁部１４ａに相当する。さらに、突起部１８は、山折部１６に近い側の辺部１８ｄを備える。この辺部１８ｄは、組み立て後の第２の縁部１４ｂに相当する。   The protrusion 18 has a triangular shape, and two corners of the triangular shape are located on the folding line L2 to form connection end portions 18a and 18b. Moreover, the triangular projection part 18 is provided with the side part 18c of the side close | similar to each valley folding part 17, and this side part 18c is corresponded to the 1st edge part 14a after an assembly. Further, the protrusion 18 includes a side portion 18 d on the side close to the mountain fold portion 16. The side portion 18d corresponds to the second edge portion 14b after assembly.

突起部１８は、折り曲げ線Ｌ２において、谷折部１７から離して設けられている。すなわち、突起部１８における接続端部１８ａは、谷折部１７から離して設けられている。これにより、型紙１５が組み立てられ、緩衝材１０となったときに隙間Ｓ１が形成される。   The protrusion 18 is provided away from the valley fold 17 at the fold line L2. That is, the connection end 18 a of the protrusion 18 is provided away from the valley fold 17. Thereby, when the pattern paper 15 is assembled and becomes the cushioning material 10, a gap S1 is formed.

突起部１８の接続端部１８ａと異なる側の接続端部１８ｂも、隣接する突起部１８同士で離して設けられている。すなわち、突起部１８における接続端部１８ｂは、二つの谷折部１７の間に位置する山折部１６から離して設けられている。これにより、型紙に組み立てられ、緩衝材１０となったときに辺縁１８ｄに相当する第２の縁部１４ｂ同士の間に隙間Ｓ２が形成される。   The connection end 18b on the side different from the connection end 18a of the protrusion 18 is also provided apart from the adjacent protrusion 18. That is, the connection end 18 b of the protrusion 18 is provided apart from the mountain fold 16 positioned between the two valley folds 17. As a result, a gap S <b> 2 is formed between the second edge portions 14 b corresponding to the edge 18 d when assembled into the pattern paper and becomes the cushioning material 10.

まず、図６（Ａ）に示すように、型紙１５を準備する。型紙１５は、平抜き機を用い、ダンボール板紙を打ち抜くことによって準備することが出来る。そして、型紙１５の突起部１８が、図６（Ｂ）に説明するように、折り曲げ線Ｌ２に沿って折り曲げられる。折り曲げ方向は、完成時に谷部１２が突出する方向、すなわち、梱包箱２内に配置されたときにその内周面２ａと対向する側と一致している。ついで、型紙１５は、図６（Ｃ）に説明するように、山折部１６が山部１１となるように、谷折部１７が谷部１２となるように交互に折り曲げられる。これにより、型紙１５から緩衝材１０を組み立てることができる。   First, as shown in FIG. 6A, a pattern paper 15 is prepared. The pattern paper 15 can be prepared by punching out cardboard board using a flat cutting machine. Then, the protrusion 18 of the pattern 15 is folded along the folding line L2, as described in FIG. 6B. The folding direction coincides with the direction in which the valley 12 protrudes when completed, that is, the side facing the inner peripheral surface 2a when it is arranged in the packaging box 2. Then, the pattern 15 is alternately bent so that the mountain folds 16 become the peaks 11 and the valley folds 17 become the valleys 12 as described in FIG. 6C. Thereby, the cushioning material 10 can be assembled from the pattern 15.

つぎに、緩衝材１０の振動エネルギ吸収の様子について図７（Ａ）、図７（Ｂ）、図８及び図９を参照しつつ説明する。図７は、梱包箱２にエネルギが小さい振動が加わったときの緩衝材１０の動きを説明する説明図である。具体的には、図７（Ａ）は緩衝材１０に振動が加わっていない平常状態を説明する説明図であり、図７（Ｂ）は振動により緩衝材１０が伸びた状態を説明する説明図である。図８は、梱包箱２にエネルギが大きい衝撃が加わったときの緩衝材の動きを説明する説明図である。図９は、翼状部１４の角部１４ｃが塑性変形した状態を説明する説明図である。これらの図面は、梱包箱２の底面に配置された緩衝材１０についてその動き、作用を説明しているが、他の緩衝材１０、２０、３０についても同様である。   Next, the state of vibration energy absorption of the cushioning material 10 will be described with reference to FIGS. 7A, 7B, 8 and 9. FIG. FIG. 7 is an explanatory diagram for explaining the movement of the cushioning material 10 when vibration with low energy is applied to the packaging box 2. Specifically, FIG. 7A is an explanatory diagram for explaining a normal state in which vibration is not applied to the buffer material 10, and FIG. 7B is an explanatory diagram for explaining a state in which the buffer material 10 is extended by vibration. It is. FIG. 8 is an explanatory diagram for explaining the movement of the cushioning material when an impact with large energy is applied to the packaging box 2. FIG. 9 is an explanatory diagram for explaining a state in which the corner portion 14c of the wing-like portion 14 is plastically deformed. These drawings describe the movement and action of the cushioning material 10 disposed on the bottom surface of the packaging box 2, but the same applies to the other cushioning materials 10, 20, and 30.

図７（Ａ）に説明するように、平常時、物品１は、山部１１に当接して緩衝材１０に支持されている。このとき、緩衝材１０は縮んだ状態となっており、内周面２ａと第１の縁部１４ａとの間には隙間Ｓ１が形成されている。なお、隙間Ｓ１は、振動が加わることにより刻々と変化するものである。   As illustrated in FIG. 7A, the article 1 is supported by the cushioning material 10 in contact with the mountain portion 11 in a normal state. At this time, the cushioning material 10 is in a contracted state, and a gap S1 is formed between the inner peripheral surface 2a and the first edge portion 14a. Note that the gap S1 changes every moment when vibration is applied.

振動が加わり、物品１が内周壁２ａ側へ移動しようとすると、緩衝材１０は、翼状部１４を備えた領域において矢示Ｘ１に示すように、伸びる。これによりエネルギを吸収する。緩衝材１０が伸びることにより隙間Ｓ１は小さくなる。緩衝材１０が矢示Ｘ１で示すように伸びた分は、両端の山部１１１がそれぞれ矢示Ｘ２で示すように収縮して、緩衝材１０の全長を維持するようにしている。   When vibration is applied and the article 1 attempts to move toward the inner peripheral wall 2a, the cushioning material 10 extends in the region provided with the wing-like portion 14, as indicated by an arrow X1. This absorbs energy. As the cushioning material 10 extends, the gap S1 becomes smaller. As the cushioning material 10 extends as indicated by the arrow X1, the crests 111 at both ends contract as indicated by the arrow X2, respectively, so that the entire length of the cushioning material 10 is maintained.

緩衝材１０は、エネルギの小さい振動を受けているとき、上記のような伸縮動作を繰り返すことにより、エネルギを吸収している。なお、振動の状態によっては、第２の縁部１４ｂ同士が接近することも考えられるが、隙間Ｓ２が設けられていることにより、翼状部１４同士が衝突することが抑制され、緩衝材１０のスムーズな伸縮を可能としている。   The shock absorbing material 10 absorbs energy by repeating the expansion and contraction operation as described above when receiving vibration with low energy. Depending on the state of vibration, the second edge portions 14b may approach each other. However, the provision of the gap S2 prevents the wing-like portions 14 from colliding with each other. Smooth expansion and contraction is possible.

つぎに、エネルギが大きい衝撃が梱包箱２に加わったときの緩衝材１０の動きを説明する。梱包箱２に加わるエネルギが大きいと、物品１が緩衝材１０の山部１１を大きな力で押す。このため、緩衝材１０が伸び、翼状部１４の角部１４ｃが内周面２ｃに衝突して変形する。この角部１４ｃの塑性変形により、エネルギが吸収される。このように、緩衝材１０は、大きなエネルギを吸収することができる。   Next, the movement of the cushioning material 10 when an impact with large energy is applied to the packaging box 2 will be described. When the energy applied to the packaging box 2 is large, the article 1 pushes the peak portion 11 of the cushioning material 10 with a large force. For this reason, the buffer material 10 is extended, and the corner portion 14c of the wing-like portion 14 collides with the inner peripheral surface 2c and deforms. Energy is absorbed by the plastic deformation of the corner portion 14c. Thus, the buffer material 10 can absorb a large amount of energy.

図９は、一旦大きな衝撃を受けたことにより、翼状部１４の角部１４ｃが塑性変形した状態を説明している。緩衝材１０の翼状部１４は変形しているが、山部１１と谷部１２が連続した波形状は維持されている。従って、緩衝材１０は、その後も伸縮による振動吸収を継続することができる。また、波形状が維持されているため、物品１を梱包箱２内で所定の位置に保持することができる。また、翼状部１４は、塑性変形を繰り返すことにより複数回の落下衝撃等の大きなエネルギを吸収することができる。   FIG. 9 illustrates a state where the corner portion 14c of the wing-like portion 14 is plastically deformed due to a large impact. Although the wing-like portion 14 of the cushioning material 10 is deformed, the wave shape in which the peak portion 11 and the valley portion 12 are continuous is maintained. Therefore, the cushioning material 10 can continue to absorb vibration due to expansion and contraction. Further, since the wave shape is maintained, the article 1 can be held in a predetermined position in the packaging box 2. Further, the wing-like portion 14 can absorb large energy such as a plurality of drop impacts by repeating plastic deformation.

以上説明したように、緩衝材１０は、弾性変形により小さいエネルギを吸収する波形状の部分と、塑性変形により大きいエネルギを吸収する翼状部とを分けることにより、小型であるにも拘らず、広範囲のエネルギ吸収を可能としている。実施例１の緩衝材１０、２０、３０によれば、緩衝材の小型化と広範囲のエネルギ吸収を実現することができる。緩衝材を小型化することにより、コスト低減、省資源化の点で有利となる。また、緩衝材１０は、一枚の型紙１５から折り曲げ加工によって製造することができるため、この点でもコスト低減となる。   As described above, the cushioning material 10 has a wide range in spite of its small size by separating the wave-shaped portion that absorbs smaller energy into elastic deformation and the wing-shaped portion that absorbs larger energy into plastic deformation. Energy absorption. According to the shock absorbers 10, 20, and 30 of the first embodiment, the shock absorber can be downsized and a wide range of energy absorption can be realized. By downsizing the buffer material, it is advantageous in terms of cost reduction and resource saving. Further, since the cushioning material 10 can be manufactured from a single pattern 15 by bending, the cost is reduced in this respect as well.

つぎに、実施例２の緩衝材５０について、図１０（Ａ）、図１０（Ｂ）を参照しつつ説明する。図１０（Ａ）は、実施例２の緩衝材５０の展開図となる型紙５５を説明する説明図であり、図１０（Ｂ）は、緩衝材５０を説明する斜視図である。   Next, the cushioning material 50 of the second embodiment will be described with reference to FIGS. 10 (A) and 10 (B). FIG. 10A is an explanatory diagram for explaining a pattern 55 serving as a development view of the cushioning material 50 according to the second embodiment, and FIG. 10B is a perspective view for explaining the cushioning material 50.

実施例２の緩衝材５０が、実施例１の緩衝材１０と異なる点は、緩衝材５０の翼状部５４が、山部５１と谷部５２が連続する方向、すなわちＸ方向と直交する方向、すなわちＹ方向に沿って、複数設けられている点である。翼状部５４は、端部に設けられたものであっても、Ｙ方向の中途に設けられたものであっても塑性変形によって、大きなエネルギを吸収する点で同様である。   The shock absorbing material 50 of the second embodiment is different from the shock absorbing material 10 of the first embodiment in that the wing-like portion 54 of the shock absorbing material 50 is a direction in which the crest 51 and the trough 52 are continuous, that is, a direction orthogonal to the X direction. That is, a plurality of points are provided along the Y direction. The wing-like portion 54 is the same in that it absorbs a large amount of energy by plastic deformation, whether it is provided at the end or in the middle of the Y direction.

緩衝材５０の型紙５５は、Ｙ方向の途中に押出部５９を備えている。この押出部５９は、実施例１の突起部１８に相当する突起部５８と同様に折り曲げられることにより縁部５３から連続する翼状部５４を形成する。このように、Ｙ方向に複数の翼状部５４を設けることにより、波形状の保形性が高まる。特に、Ｙ方向に長い物品を保持する場合等は、Ｙ方向の中途に位置する翼状部５４が有効に機能する。このように保形性が高まることにより、繰り返しの衝撃にも対応し易くなる。   The pattern 55 of the cushioning material 50 includes an extruding portion 59 in the middle of the Y direction. The extruded portion 59 is bent in the same manner as the protruding portion 58 corresponding to the protruding portion 18 of the first embodiment, thereby forming a wing-shaped portion 54 continuous from the edge portion 53. As described above, by providing the plurality of wing-like portions 54 in the Y direction, the shape retention of the wave shape is enhanced. In particular, when holding an article that is long in the Y direction, the wing-like portion 54 located in the middle of the Y direction functions effectively. Thus, it becomes easy to cope with repeated impacts by increasing the shape retention.

つぎに、実施例３について図１１を参照しつつ説明する。図１１は、実施例３の緩衝材の展開図となる型紙６５を説明する説明図である。型紙６５は、実施例２と同様に突起部６８及び押出部６９を備えている。実施例３が実施例２と異なる点は、実施例２の押出部５９が一か所につき、一対の押出部５９を備えているのに対し、実施例３の押出部６９は一か所につき、一つずつ設けられている点である。   Next, Example 3 will be described with reference to FIG. FIG. 11 is an explanatory diagram for explaining a pattern 65 serving as a development view of the cushioning material according to the third embodiment. The pattern paper 65 includes a protrusion 68 and an extrusion 69 as in the second embodiment. Example 3 differs from Example 2 in that the extrusion part 59 of Example 2 is provided with a pair of extrusion parts 59, whereas the extrusion part 69 of Example 3 is provided with one part. , One by one.

押出部６９の配置、すなわち、翼状部の配置は、必要に応じて適宜変更することができる。例えば、物品の性質によって、重量が大きい部位を支持する箇所には、多数の翼状部を配置するようにしてもよい。   The arrangement of the extruding part 69, that is, the arrangement of the wing-like part can be appropriately changed as necessary. For example, depending on the property of the article, a large number of wing-like portions may be arranged at a location that supports a portion having a large weight.

以上本発明の好ましい実施例について詳述したが、本発明は係る特定の実施例に限定されるものではなく、特許請求の範囲に記載された本発明の要旨の範囲内において、種々の変形、変更が可能である。   Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the specific embodiments, and various modifications, within the scope of the gist of the present invention described in the claims, It can be changed.

例えば、図１２（Ａ）により説明するように、隣接する二つの谷部７２を結ぶ線分Ｌ１よりも内側に位置する第１の縁部７４を谷部７２から延ばすことができる。すなわち、第１の縁部７４ａを谷部７２から山部７１側に向かって斜めに延ばすことができる。これにより、第１の縁部７４ａと第２の縁部７４ｂとが交わる角部７４ｃと内周面２ａとの間に隙間Ｓ１を形成することができる。   For example, as will be described with reference to FIG. 12A, the first edge portion 74 located on the inner side of the line segment L <b> 1 connecting the two adjacent valley portions 72 can be extended from the valley portion 72. That is, the first edge portion 74a can be extended obliquely from the valley portion 72 toward the mountain portion 71 side. Accordingly, a gap S1 can be formed between the corner 74c where the first edge 74a and the second edge 74b intersect with the inner peripheral surface 2a.

また、図１２（Ｂ）により説明するように、第１の縁部８４ａは、山部８１と谷部８２とを接続する縁部８３の途中から延ばしてもよい。これにより、第１の縁部８４ａと第２の縁部８４ｂとが交わる角部８４ｃと内周面２ａとの間に隙間Ｓ１を形成することができる。   Further, as described with reference to FIG. 12B, the first edge portion 84 a may extend from the middle of the edge portion 83 that connects the peak portion 81 and the valley portion 82. Accordingly, a gap S1 can be formed between the corner portion 84c where the first edge portion 84a and the second edge portion 84b intersect with the inner peripheral surface 2a.

１ 物品
２ 梱包箱
２ａ 内周面
１０、２０、３０ 緩衝材
１１、５１、７１ 山部
１２、５２、７２ 谷部
１３、５３ 縁部
１４、５４、７４、８４ 翼状部
１４ａ、５４ａ、７４ａ、８４ａ 第１の縁部
１４ｂ、７４ｂ、８４ｂ 第２の縁部
１４ｃ 角部
１５、５５、６５ 型紙
１６、５６ 山折部
１７、５７ 谷折部
１８、５８ 突起部
１８ａ、１８ｂ 接続端部
１８ｃ 辺部
１８ｄ 辺部
５９、６９ 押出部
Ｓ１ 隙間
Ｓ２ 隙間 DESCRIPTION OF SYMBOLS 1 Goods 2 Packing box 2a Inner peripheral surface 10, 20, 30 Cushioning material 11, 51, 71 Mountain part 12, 52, 72 Valley part 13, 53 Edge part 14, 54, 74, 84 Airfoil part 14a, 54a, 74a, 84a First edge portion 14b, 74b, 84b Second edge portion 14c Corner portion 15, 55, 65 Paper pattern 16, 56 Mountain fold portion 17, 57 Valley fold portion 18, 58 Projection portion 18a, 18b Connection end portion 18c Side portion 18d Side 59, 69 Extrusion part S1 gap S2 gap

Claims (5)

梱包箱の内周面に沿って配置される緩衝材であって、
交互に設けられた山部及び谷部と、
前記山部の内側に、前記山部と谷部とを接続する接続部と、
前記接続部に設けられた翼状部と、を備え、
前記翼状部は、隣接する二つの前記谷部を結ぶ線分よりも内側に位置する第１の縁部を備えたことを特徴とする緩衝材。 A cushioning material arranged along the inner peripheral surface of the packaging box,
Alternating peaks and valleys,
A connection part that connects the peak part and the valley part inside the peak part,
A wing-like part provided in the connection part,
The wing-like portion includes a first edge portion located on the inner side of a line segment connecting two adjacent valley portions. 前記翼状部は、一の前記山部から延びる二つの接続部のそれぞれに設けられ、二つの前記翼状部の対向する第２の縁部の間に隙間が形成されたことを特徴とする請求項１に記載の緩衝材。   The wing-like portion is provided in each of two connection portions extending from one peak portion, and a gap is formed between the second edge portions of the two wing-like portions facing each other. 1. The cushioning material according to 1. 前記翼状部は、前記山部と谷部が連続する方向と直交する方向に沿って、複数設けられたことを特徴とする請求項１又は２に記載の緩衝材。   The shock-absorbing material according to claim 1 or 2, wherein a plurality of the wing-like portions are provided along a direction orthogonal to a direction in which the peak and valley are continuous. 前記翼状部は、前記接続部の一部を折り曲げて形成されていることを特徴とする１乃至３のいずれか一項に記載の緩衝材   The cushioning material according to any one of claims 1 to 3, wherein the wing-like part is formed by bending a part of the connection part. 請求項１乃至４のいずれか一項に記載の緩衝材を内部に備えたことを特徴とする梱包箱。   A packaging box comprising the shock-absorbing material according to any one of claims 1 to 4 inside.
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JP6154927B1 (en) * 2016-02-15 2017-06-28 ソフトバンク株式会社 Packing box cushioning material, packing box cushioning material set and packing method
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