JP2007076663A

JP2007076663A - Cushioning member

Info

Publication number: JP2007076663A
Application number: JP2005264011A
Authority: JP
Inventors: Masayuki Hyodo; 雅幸兵頭
Original assignee: Ube Nitto Kasei Co Ltd
Current assignee: Ube Exsymo Co Ltd
Priority date: 2005-09-12
Filing date: 2005-09-12
Publication date: 2007-03-29

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cushioning member that is excellent in (1) cushioning properties and (2) strength characteristics. <P>SOLUTION: Layered air caps, which are air cushion members 2, are disposed between two Danplate (R) panels, which are face materials, and thereby a laminated body 10 is formed. The faces of the laminated body 10 are integrated with a shrink film 3 and thus the cushioning member 100 is formed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、物品間に緩衝性を保持させるための緩衝部材に関する。 The present invention relates to a buffer member for maintaining buffering properties between articles.

従来、物品間に緩衝性を保持させるための緩衝部材としては、例えば、エアキャップやエアバック等の空気緩衝部材が用いられている。これらの空気緩衝部材は、（１）緩衝性（クッション性、断熱性、保温性など）を有するが、（２）平板としての強度特性（破壊強度、衝撃性など）を有していない。また、空気緩衝部材のうちエアキャップは、独立気泡が形成されており、その一部が損傷しても全体としての著しい機能低下が起こりにくい一方で、その厚みを増して緩衝効果を上げるには、気泡そのものを大型化する必要がある。しかし、このように気泡を大型化した場合には、鋭利な突き刺し衝撃に対し全体としての著しい機能低下を引き起こしてしまう。そのため、気泡を大型化すること困難であり、（１）緩衝性に優れているとはいえない。 Conventionally, for example, an air cushioning member such as an air cap or an air bag is used as a cushioning member for retaining cushioning properties between articles. These air cushioning members have (1) cushioning properties (cushioning properties, heat insulation properties, heat retention properties, etc.), but (2) do not have strength characteristics (destructive strength, impact properties, etc.) as flat plates. In addition, the air cap of the air buffer member is formed with closed cells, and even if a part of the air cap is damaged, it is difficult for the function to be significantly reduced as a whole. On the other hand, increasing the thickness of the air cap increases the buffer effect. The bubble itself needs to be enlarged. However, when the bubbles are increased in size in this way, the overall function is significantly deteriorated against a sharp stab impact. Therefore, it is difficult to increase the size of the bubbles, and (1) it cannot be said that the buffering property is excellent.

一方、（２）強度特性を有する緩衝部材としては、例えば、ベニア板、発泡スチロール、プラスチックダンボール等が用いられている（下記特許文献１〜４参照）。しかし、これらの緩衝部材は、（１）緩衝性に優れているとはいえない。
特開２００１−３５４２７０号公報特開２００３−２００９６１号公報特開２００３−２６７４２４号公報特開２００３−２６７４２５号公報 On the other hand, (2) As a buffer member having strength characteristics, for example, a veneer plate, a polystyrene foam, a plastic cardboard, or the like is used (see Patent Documents 1 to 4 below). However, these buffer members are not (1) excellent in buffering properties.
JP 2001-354270 A Japanese Patent Laid-Open No. 2003-200961 JP 2003-267424 A JP 2003-267425 A

すなわち、従来の技術にあっては、未だ、上記（１）及び（２）の特性に優れた緩衝部材が開発されていない。 That is, in the prior art, a buffer member excellent in the characteristics (1) and (2) has not been developed yet.

本発明は、かかる従来の問題に鑑みてなされてものであり、その目的とするところは、（１）緩衝性及び（２）強度特性に優れた緩衝部材を提供することにある。 The present invention has been made in view of such conventional problems, and an object thereof is to provide a buffer member excellent in (1) shock-absorbing property and (2) strength characteristics.

上記課題を解決するために、本発明の緩衝部材は、二枚の面材の間に空気緩衝部材を積層させて積層体とし、該積層体の表面をシュリンクして一体化している。
また、本発明において、前記面材は、二枚の合成樹脂製シート間に多数の平行なリブを配列してなる合成樹脂製段ボールが好ましい。
また、本発明において、前記空気緩衝部材は、エアキャップが好ましい。
また、本発明において前記面材には、直線状の切込部を設けたものが好ましい。 In order to solve the above-described problems, the cushioning member of the present invention is formed by laminating an air cushioning member between two face members to form a laminate, and the surface of the laminate is shrunk and integrated.
In the present invention, the face material is preferably a synthetic resin corrugated cardboard formed by arranging a large number of parallel ribs between two synthetic resin sheets.
In the present invention, the air cushioning member is preferably an air cap.
In the present invention, the face material is preferably provided with a linear cut portion.

本発明によれば、（１）緩衝性及び（２）強度特性に優れた緩衝部材を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the buffer member excellent in (1) shock absorbing property and (2) intensity | strength characteristics can be provided.

以下、添付図面を参照しながら、本発明を実施するための最良の形態について説明する。 The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

図１は、本発明における緩衝部材の構成例を示す概略断面図である。図１に示すように、緩衝部材１０は、二枚の面材１ａ，１ｂの間に空気緩衝部材２を積層させて積層体１０とし、この積層体１０の表面をシュリンクフィルム３で被覆することにより、面材１ａ，１ｂと空気緩衝部材２とを、シュリンクフィルム３で一体化したものである。 FIG. 1 is a schematic cross-sectional view showing a configuration example of a buffer member in the present invention. As shown in FIG. 1, the cushioning member 10 is formed by laminating the air cushioning member 2 between the two face materials 1 a and 1 b to form a laminate 10, and the surface of the laminate 10 is covered with the shrink film 3. Thus, the face materials 1a and 1b and the air cushioning member 2 are integrated by the shrink film 3.

上記の面材１ａ，１ｂとしては、プラスチック製ダンボールなどが挙げられ、例えば、中空構造板（宇部日東化成株式会社製；商品名「ツインコーン」ＷＯ０３／０８０３２６号参照）やシート状物（宇部日東化成株式会社製；商品名「シングルコーン」：特願２００４−３３３４８６号、特願２００５−１４４８６号参照）などがあり、特に、二枚の合成樹脂製シート間に多数の平行なリブを配列してなる合成樹脂製段ボール（宇部日東化成株式会社製；商品名「ダンプレート」）が好ましい。また、前記ダンプレートには、リブと直角方向に罫線を入れたものや、リブと平行方向に罫線を入れたものを使用してもよい（図示せず）。かかる罫線は、直線状の切込部に該当するものである。 Examples of the face materials 1a and 1b include plastic cardboard and the like. For example, a hollow structure board (manufactured by Ube Nitto Kasei Co., Ltd .; see “Twin Cone” WO 03/080326) or a sheet (Ube Nitto) Manufactured by Kasei Co., Ltd .; trade name “single cone”: Japanese Patent Application No. 2004-333486, Japanese Patent Application No. 2005-14486), and in particular, a large number of parallel ribs are arranged between two synthetic resin sheets. Corrugated cardboard made of synthetic resin (manufactured by Ube Nitto Kasei Co., Ltd .; trade name “Danplate”) is preferable. Moreover, you may use for the said damper plate what put a ruled line in the direction orthogonal to a rib, and what put a ruled line in the direction parallel to a rib (not shown). Such ruled lines correspond to straight cut portions.

上記の空気緩衝部材２としては、エアキャップが好ましく、さらに、筒状にした前記シート状物（以下、「シングルコーン筒」という）の中に、エアキャップを詰めたものを空気緩衝部材２として用いてもよい。その場合には、ブイ形状物等の作製が可能となる。また、空気緩衝部材２として、エアキャップの替わりにシングルコーン筒を用いてもよい。 The air cushion member 2 is preferably an air cap, and the air cushion member 2 is a tubular sheet-like material (hereinafter referred to as “single cone cylinder”) filled with an air cap. It may be used. In that case, a buoy-shaped object or the like can be produced. Further, as the air cushioning member 2, a single cone cylinder may be used instead of the air cap.

そして、積層体１０は、かかる面材１ａ,１ｂの間に、少なくとも1層以上の空気緩衝部材２を積層させたものであり（図１の場合には３層）、面材１ａ,１ｂと空気緩衝部材２とを熱融着したり、あるいは所定の接着剤で接着したりする必要はない。積層体１０の表面をシュリンクフィルム３で被覆することにより、面材１ａ,１ｂと空気緩衝部材２とが一体化されるため、緩衝部材１００としての機能を有する。なお、このシュリンクフィルム３は、曲げなどの形状変化に対して追従可能な柔軟性と、引張強度特性の低下を起こさせない程度の剛性と、を兼ね備えた合成樹脂フィルムである。この合成樹脂フィルムは、例えば高圧法低密度ポリエチレン系樹脂、高密度ポリエチレン系樹脂、ポリプロピレン系樹脂、ポリブテン系樹脂、ポリエチレンテフタレート樹脂、ポリスチレン樹脂などが適宜用いられる。さらに大気中のホコリや塵を吸着しないようにしたり、また取扱中に静電気が蓄積されないように、帯電防止用の添加剤をこのシュリンクフィルムに付与させてもよい。 The laminate 10 is obtained by laminating at least one layer of the air cushioning member 2 between the face materials 1a and 1b (three layers in the case of FIG. 1), and the face materials 1a and 1b. There is no need to heat-seal the air cushioning member 2 or bond it with a predetermined adhesive. By covering the surface of the laminated body 10 with the shrink film 3, the face materials 1 a and 1 b and the air cushioning member 2 are integrated, so that the cushioning member 100 functions. The shrink film 3 is a synthetic resin film having both flexibility that can follow a shape change such as bending and rigidity that does not cause a decrease in tensile strength characteristics. As this synthetic resin film, for example, a high pressure method low density polyethylene resin, a high density polyethylene resin, a polypropylene resin, a polybutene resin, a polyethylene terephthalate resin, a polystyrene resin, or the like is appropriately used. Further, an antistatic additive may be added to the shrink film so as not to adsorb dust and dust in the atmosphere or to prevent static electricity from being accumulated during handling.

以上の構成によれば、（１）及び（２）の特性に優れており、加えて、（３）〜（５）の特性をも有する。すなわち、本発明を構成する空気緩衝部材２は、その性質上当然に緩衝性に優れているので、本発明の緩衝部材１００は、（１）緩衝性に優れた効果を奏する。また、本発明を構成する面材１ａ，１ｂは、その性質上当然に強度に優れているので、本発明の緩衝部材１００は、（２）強度特性にも優れた効果を奏する。なお、空気緩衝部材２は、面材１ａ,１ｂで挟まれて保護された状態にある。そのため、空気緩衝部材２としてエアキャップを用いた場合に、その気泡を大型化して空気緩衝効果を上げたとしても、突き刺し衝撃などに対する機能低下を招くこともない。また、かかる構成の緩衝部材１００は、曲げ剛性が強くなり、荷崩れを防止することができる（以下、かかる性質を「荷崩れ防止性」とする）。 According to the above structure, it is excellent in the characteristics of (1) and (2), and also has the characteristics of (3) to (5). That is, since the air cushioning member 2 constituting the present invention is naturally excellent in cushioning property, the cushioning member 100 of the present invention has the effect of (1) superior cushioning property. Moreover, since the face materials 1a and 1b constituting the present invention are naturally excellent in strength due to their properties, the buffer member 100 of the present invention has an effect of (2) excellent strength characteristics. The air cushioning member 2 is in a state of being protected by being sandwiched between the face materials 1a and 1b. Therefore, when an air cap is used as the air cushioning member 2, even if the bubbles are enlarged and the air cushioning effect is increased, the function against the stab impact is not reduced. Further, the buffer member 100 having such a configuration has a high bending rigidity and can prevent the collapse of the load (hereinafter, this property is referred to as “load collapse prevention property”).

さらに、本発明は、二枚の面材の間に軽量な空気緩衝部材２を挟んだ構成であるため、空気緩衝部材２の作用により、（３）軽量性及び（４）柔軟性を有する。 Furthermore, since this invention is the structure which sandwiched the lightweight air shock absorbing member 2 between the two face materials, it has (3) light weight and (4) flexibility by the effect | action of the air shock absorbing member 2. FIG.

さらに、本発明は、面材１ａ，１ｂと空気緩衝部材２とをシュリンクフィルム３で一体化させただけの簡易な構成であり、金型や設備投資などは不要である。従って、本発明によれば、緩衝部材１００の製造に関し、（５）低コスト化を実現することができる。また、本発明は、面材１ａ，１ｂと空気緩衝部材２とを一体化するにあたり、面材１ａ，１ｂと空気緩衝部材２とを熱融着させたり、あるいは接着剤で接着させる必要もない。そのため、本発明の緩衝部材１００にあっては、シュリンクフィルム３を剥がすことにより、容易に面材１ａ，１ｂと空気緩衝部材２とに分離できるので、リサイクルに適している。また、接着剤等を除去するための作業も必要ないので、（５）低コスト化を実現することもできる。 Furthermore, the present invention has a simple configuration in which the face materials 1a and 1b and the air cushioning member 2 are simply integrated by the shrink film 3, and a mold and capital investment are unnecessary. Therefore, according to the present invention, regarding the manufacture of the buffer member 100, (5) cost reduction can be realized. In the present invention, when the face materials 1a and 1b and the air cushioning member 2 are integrated, it is not necessary to heat-seal the face materials 1a and 1b and the air cushioning member 2 or to bond them with an adhesive. . Therefore, the cushioning member 100 of the present invention is suitable for recycling because it can be easily separated into the face materials 1a and 1b and the air cushioning member 2 by peeling the shrink film 3. Moreover, since the operation | work for removing an adhesive agent etc. is also unnecessary, (5) cost reduction can also be implement | achieved.

また、面材１ａ，１ｂとして、前述したダンプレートを用いた場合には、（１）〜（５）の点でより優れた効果を奏し、さらに空気緩衝部材２として、前述したエアキャップを用いた場合にも、（１）〜（５）の点で優れた効果を奏する。特に、前述のように空気緩衝部材２としてシングルコーン筒を用いた場合には、緩衝部材１００は嵩高くなり、（１）緩衝性、（３）軽量性の点でより優れた効果を奏する。 In addition, when the above-described damper plate is used as the face materials 1a and 1b, the effects described in (1) to (5) are more excellent, and the above-described air cap is used as the air cushioning member 2. Even in the case, there are excellent effects in terms of (1) to (5). In particular, when a single cone cylinder is used as the air cushioning member 2 as described above, the cushioning member 100 becomes bulky, and has more excellent effects in terms of (1) cushioning and (3) lightweight.

また、面材２に直線状の切込部（図示せず）を設けた場合には、緩衝部材１００は、切込部の作用が付加されて折り曲げやすくなり、（３）柔軟性の点でより優れた効果を奏する。特に、面材１ａ，１ｂであるダンプレートに対して切込部である罫線を入れた場合には、（４）柔軟性の点でより優れた効果を奏する。但し、かかる場合においても、各罫線が直交するように面材１ａ，１ｂを配置すれば、罫線の作用は相互に打ち消されてしまうため、緩衝部材１００の（４）柔軟性が低下することもある。本発明の構成は、かかる形態を含むことはいうまでもない。 Further, when the face material 2 is provided with a linear notch (not shown), the buffer member 100 is easily bent by the action of the notch, and (3) in terms of flexibility. There is a better effect. In particular, when a ruled line that is a cut portion is inserted into the damper plate that is the face materials 1a and 1b, (4) a more excellent effect can be obtained in terms of flexibility. However, even in such a case, if the face materials 1a and 1b are arranged so that the respective ruled lines are orthogonal to each other, the action of the ruled lines is canceled by each other. is there. It goes without saying that the configuration of the present invention includes such a form.

ところで、上記の本実施形態においては、面材１a，１ｂの表面をシュリンクフィルム３で直接被覆した構成であり、面材１a，１ｂとシュリンクフィルム３との間には、空気緩衝部材２などは介在していない。しかし、本発明の構成は、かかる実施形態に限定されるものではなく、例えば面材１a，１ｂとシュリンクフィルム３との間に、空気緩衝部材２などを介在させた構成としてもよい。かかる構成とした場合においても、上記（１）〜（５）の効果を奏する。 By the way, in this embodiment, the surface of the face materials 1a and 1b is directly covered with the shrink film 3, and the air cushioning member 2 and the like are provided between the face materials 1a and 1b and the shrink film 3. There is no intervention. However, the configuration of the present invention is not limited to such an embodiment. For example, an air cushioning member 2 may be interposed between the face materials 1a and 1b and the shrink film 3. Even in such a configuration, the effects (1) to (5) are obtained.

次に、本発明の実施例について説明する。 Next, examples of the present invention will be described.

本実施例においては、面材１ａ，１ｂとしてダンプレート（品番；Ａ−３−４０、目付；４００ｇ／ｍ^２、１，２００ｃｍ×２，０００ｃｍ）を二枚用い、空気緩衝部材２としてエアキャップ（品番；Ｄ−６５０、目付；９０ｇ／ｍ^２、１，２００ｃｍ×２，０００ｃｍ）を四枚用いた。そして、二枚のダンプレートの間にエアキャップ四枚を積層させて積層体１０とし、この積層体１０をシュリンクフィルム３で被覆した。これにより、緩衝部材１００（板材合計目付；２．８ｋｇ／ｍ^２，板厚；４０ｍｍ）を作製した。 In the present embodiment, two plate plates (part number: A-3-40, basis weight: 400 g / m ² , 1,200 cm × 2,000 cm) are used as the face materials 1 a, 1 b, and an air cap is used as the air cushioning member 2. (Product number: D-650, basis weight: 90 g / m ² , 1,200 cm × 2,000 cm) was used. And four air caps were laminated | stacked between the two dump plates, and it was set as the laminated body 10, and this laminated body 10 was coat | covered with the shrink film 3. FIG. Thereby, the buffer member 100 (plate material total fabric weight; 2.8 kg / m ² , plate thickness; 40 mm) was produced.

一方、従来の構成例である比較例においては、本実施例と同じダンプレートを二枚貼り合わせたもの（比較例１、板材合計目付；１．９２ｋｇ，板厚；６ｍｍ）と、本実施例と同じエアキャップを一枚単体で構成したもの（比較例２、目付；０．２２ｋｇ／ｍ^２，板厚；１０ｍｍ）と、を用いた。 On the other hand, in the comparative example, which is a conventional configuration example, two of the same damper plates as those of this example are bonded together (Comparative Example 1, total sheet weight per unit: 1.92 kg, plate thickness: 6 mm), and this example. And a single air cap (Comparative Example 2, basis weight; 0.22 kg / m ² , plate thickness; 10 mm) was used.

以上の本実施例及び比較例１，２について、（１）緩衝性（クッション性、断熱・保温性）、（２）強度特性（荷崩れ防止性）、（３）軽量性、（４）柔軟性、（５）コスト面、を比較検討した。その結果を表１に示す。なお、（５）コスト面では、緩衝部材の製造コストのみならず、廃棄若しくはリサイクルコスト等をも考慮している。 About the present Example and Comparative Examples 1 and 2 above, (1) cushioning properties (cushioning properties, heat insulation and heat retaining properties), (2) strength properties (load collapse prevention properties), (3) light weight, and (4) flexibility And (5) cost. The results are shown in Table 1. (5) In terms of cost, not only the manufacturing cost of the buffer member but also the disposal or recycling cost is taken into consideration.

表１に示すように、本実施例の緩衝部材の場合には、（１）及び（２）の点で良好な特性を有し、（３）〜（５）の特性も有する結果を示した。これに対して、比較例１の緩衝部材の場合には、（１）及び（２）の特性を有するものの、いずれも良好とはいえない。また、比較例２の緩衝部材の場合には、（１）及び（３）〜（５）の点で良好な特性を有するものの、（２）の特性を有しておらず、良好な特性を有するとはいえない。 As shown in Table 1, in the case of the buffer member of this example, the results of having good characteristics in terms of (1) and (2) and also having the characteristics of (3) to (5) were shown. . On the other hand, although the buffer member of Comparative Example 1 has the characteristics (1) and (2), none of them is good. Moreover, in the case of the buffer member of the comparative example 2, although it has a favorable characteristic in the point of (1) and (3)-(5), it does not have the characteristic of (2) and has a favorable characteristic. I do not have it.

以上のように、本発明の構成（実施例）によれば、従来の構成（比較例1，２）の場合とは異なり、（１）緩衝性及び（２）強度特性に優れた効果を奏する。また、本発明の構成では、（３）軽量性及び（４）柔軟性も有する。また、本発明の緩衝部材は、面材と空気緩衝部材とをシュリンクフィルムで一体化させただけの簡易な構成であるため、（５）低コスト化を実現することもできる。 As described above, according to the configuration (Example) of the present invention, unlike the conventional configuration (Comparative Examples 1 and 2), (1) excellent buffering properties and (2) strength characteristics are obtained. . The configuration of the present invention also has (3) light weight and (4) flexibility. In addition, since the cushioning member of the present invention has a simple configuration in which the face material and the air cushioning member are simply integrated with the shrink film, (5) cost reduction can be realized.

緩衝部材の構成例を示す概略断面図である。It is a schematic sectional drawing which shows the structural example of a buffer member.

Explanation of symbols

１ａ,１ｂ面材
２空気緩衝材
３シュリンクフィルム
１０積層体
１００緩衝部材 DESCRIPTION OF SYMBOLS 1a, 1b Face material 2 Air buffer material 3 Shrink film 10 Laminated body 100 Buffer member

Claims

A cushioning member in which an air cushioning member is laminated between two face members to form a laminate, and the surface of the laminate is shrunk and integrated.

The shock-absorbing member according to claim 1,
The cushioning member, wherein the face material is a synthetic resin corrugated cardboard formed by arranging a large number of parallel ribs between two synthetic resin sheets.

The shock-absorbing member according to claim 1 or 2,
The cushioning member, wherein the air cushioning member is an air cap.

The shock-absorbing member according to any one of claims 1 to 3,
A cushioning member, wherein the face material is provided with a linear cut portion.