JP2021160811A - Cushioning structure and packaging material with the same - Google Patents

Abstract

To provide a cushioning structure such that a cushioning position for a packaged object can be easily and precisely determined and assembly workability can be maintained, and a packaging material with the same.SOLUTION: A cushioning structure comprises one or more cushioning members which come into contact with a cushioning surface of a packaged object, and a flat plate-type retaining member which has a retaining part retaining the cushioning member at a predetermined position. The cushioning member is a polyhedron including a contact surface coming into contacting with the cushioning surface, an opposed surface facing the contact surface, and a first side face and a second side face, and has an engagement groove formed including a first engagement groove extending from the opposite surface to the contact surface, and a second engagement groove communicating with the first engagement groove and extending in a direction crossing the first engagement groove. The retaining part has a first insert piece raised substantially vertically from the retaining member, and a second insert piece extending substantially perpendicularly to the first insert piece. The first insert piece and second insert piece are inserted into the first engagement groove and second engagement groove respectively to retain the cushioning member for the retaining member.SELECTED DRAWING: Figure 8

Description

本発明は、包装箱と、包装箱に収納される被梱包物との隙間に配置される緩衝構造体、およびそれを備えた包装材に関するものである。 The present invention relates to a buffer structure arranged in a gap between a packaging box and an object to be packed stored in the packaging box, and a packaging material provided with the buffer structure.

従来、包装箱を用いて被梱包物を梱包する際に、被梱包物と包装箱との隙間に外部からの衝撃や振動を吸収する緩衝材を配置する。このような緩衝材は、被梱包物の外形に合わせて、衝撃を緩衝したい箇所に位置決めを行う必要がある。しかし、一部材で緩衝力と位置決め機能を両立させようとすると、緩衝力や緩衝位置を変更したい場合に設計面の制約によって変更が困難なことが多かった。 Conventionally, when packing an object to be packed using a packaging box, a cushioning material that absorbs an external impact or vibration is arranged in a gap between the object to be packed and the packaging box. Such a cushioning material needs to be positioned at a position where it is desired to cushion the impact according to the outer shape of the packaged object. However, when trying to achieve both the buffering force and the positioning function with one member, it is often difficult to change the buffering force and the buffering position due to design restrictions.

そこで、緩衝材の位置決めを容易に行う方法が提案されており、例えば特許文献１には、段ボール又は板材と緩衝ブロックとを組み合わせてなる緩衝材において、胴体に段ボールの板が進入するスリットを切り込んだ緩衝ブロックと、緩衝ブロックがスリットを板面に平行にした姿勢で進入可能な貫通孔を備えた板状の段ボールとから成り、緩衝ブロックを貫通孔に挿入してスリットを貫通孔の縁に係止させる緩衝材が開示されている。 Therefore, a method for easily positioning the cushioning material has been proposed. For example, in Patent Document 1, in a cushioning material formed by combining a corrugated cardboard or a plate material and a cushioning block, a slit through which the corrugated cardboard plate enters the body is cut. It consists of a cushioning block and a plate-shaped corrugated cardboard with a through hole that allows the cushioning block to enter with the slit parallel to the plate surface. A cushioning material to be locked is disclosed.

特開２００５−２２７１７号公報Japanese Unexamined Patent Publication No. 2005-22717

特許文献１の緩衝材では、緩衝ブロックを段ボール又は板材の貫通孔に挿入してスリットを貫通孔の縁に係止させた状態で、緩衝ブロックの一部が段ボール又は板材の外側に突出する。そのため、被梱包物に緩衝材を装着した状態で外箱を被せる際に外箱が緩衝材の突出部分に引っ掛かるという問題点があった。 In the cushioning material of Patent Document 1, a part of the cushioning block projects to the outside of the corrugated cardboard or the plate material in a state where the cushioning block is inserted into the through hole of the corrugated cardboard or the plate material and the slit is locked to the edge of the through hole. Therefore, there is a problem that the outer box is caught in the protruding portion of the cushioning material when the outer box is covered with the cushioning material attached to the packaged object.

本発明は、上記問題点に鑑み、被梱包物に対する緩衝位置を容易に且つ精度よく位置決め可能であり、組み立て作業性も維持可能な緩衝構造体およびそれを備えた包装材を提供することを目的とする。 In view of the above problems, it is an object of the present invention to provide a buffer structure capable of easily and accurately positioning a buffer position with respect to an object to be packed and maintaining assembly workability, and a packaging material provided with the buffer structure. And.

上記目的を達成するために本発明の第１の構成は、包装箱と、包装箱に収納される被梱包物との間に配置され、被梱包物に加わる衝撃を緩衝する緩衝構造体である。緩衝構造体は、被梱包物の緩衝面に接触する一つ以上の緩衝部材と、緩衝部材を所定位置に着脱可能に保持する保持部を有する保持部材と、を備える。緩衝部材は、緩衝面に接触する接触面と、接触面に対向する対向面と、接触面および対向面と交差する第１側面と、第１側面と対向する第２側面と、を含む多面体である。緩衝部材には、対向面を横断するように対向面から接触面に向けて延びる第１係合溝と、第１係合溝に連通して第１係合溝に交差する方向に延在し、第１側面から第２側面まで貫通する第２係合溝と、を含む係合溝が形成されている。保持部は、保持部材の所定箇所から第１折り線および平面視コ字状の第１切り込み線に沿って切り起こされ、保持部材から第１折り線を介して略垂直に起立する第１挿入片と、第１折り線と平行な第２折り線を介して第１挿入片に対し略垂直に延在する第２挿入片と、を有する。第１挿入片および第２挿入片を、それぞれ第１係合溝および第２係合溝に挿入することで、保持部材に対し緩衝部材を保持する。 In order to achieve the above object, the first configuration of the present invention is a buffer structure that is arranged between the packaging box and the packaged object stored in the packaging box and cushions the impact applied to the packaged object. .. The cushioning structure includes one or more cushioning members that come into contact with the cushioning surface of the packaged object, and a holding member having a holding portion that detachably holds the cushioning member in a predetermined position. The cushioning member is a polyhedron including a contact surface in contact with the cushioning surface, a facing surface facing the contact surface, a first side surface intersecting the contact surface and the facing surface, and a second side surface facing the first side surface. be. The cushioning member extends in a direction in which a first engaging groove extends from the facing surface toward the contact surface so as to cross the facing surface, and the first engaging groove communicates with the first engaging groove and intersects the first engaging groove. , A second engaging groove penetrating from the first side surface to the second side surface, and an engaging groove including the second engaging groove are formed. The holding portion is cut up from a predetermined position of the holding member along the first fold line and the first U-shaped cut line in a plan view, and the first insertion that stands up substantially vertically from the holding member via the first fold line. It has a piece and a second insert piece extending substantially perpendicular to the first insert piece via a second fold line parallel to the first fold line. By inserting the first insertion piece and the second insertion piece into the first engagement groove and the second engagement groove, respectively, the cushioning member is held against the holding member.

本発明の第１の構成によれば、緩衝部材に形成された第１係合溝および第２係合溝に、保持部の第１挿入片および第２挿入片を挿入することで、保持部材に対し緩衝部材の上下方向および内外方向の移動を規制することができる。従って、輸送中の振動や衝撃等によって緩衝部材が移動し難いため、被梱包物に対する緩衝部材の緩衝位置を精度よく位置決めすることができる。また、保持部は保持部材から切り起こして組み立てるだけの簡単な構造であり、緩衝部材を保持するための別部材を必要としないため、緩衝構造体の構成の簡素化や部材点数の削減、梱包材料の低コスト化、組み立て作業性も維持することができる。さらに、緩衝部材が保持部材の外側面から突出しないため、被梱包物に緩衝構造体を装着して上箱を被せる際に上箱が緩衝部材の突出部分に引っ掛かるおそれもなくなる。 According to the first configuration of the present invention, the holding member is formed by inserting the first insertion piece and the second insertion piece of the holding portion into the first engaging groove and the second engaging groove formed in the cushioning member. On the other hand, the movement of the cushioning member in the vertical direction and the inward / outward direction can be restricted. Therefore, since the cushioning member is difficult to move due to vibration, impact, or the like during transportation, the cushioning position of the cushioning member with respect to the packaged object can be accurately positioned. In addition, the holding part has a simple structure that is simply cut up from the holding member and assembled, and does not require a separate member for holding the cushioning member. Therefore, the structure of the cushioning structure is simplified, the number of members is reduced, and packaging is performed. The cost of the material can be reduced and the assembly workability can be maintained. Further, since the cushioning member does not protrude from the outer surface of the holding member, there is no possibility that the upper box is caught in the protruding portion of the cushioning member when the cushioning structure is attached to the packaged object and the upper box is covered.

本発明の緩衝構造体７ｂを用いる包装材１００の分解斜視図An exploded perspective view of the packaging material 100 using the buffer structure 7b of the present invention. 包装箱１に使用される止め具１０の使用前の状態を第１ヒンジ部１８ａ、１８ｂと垂直な方向から見た側面断面図Side sectional view of the stopper 10 used for the packaging box 1 before use as viewed from a direction perpendicular to the first hinge portions 18a and 18b. 止め具１０のキー部材１５が筒状部１６の内部に挿入された状態を鍔部１７側から見た斜視図Perspective view of the state in which the key member 15 of the stopper 10 is inserted into the tubular portion 16 as viewed from the flange portion 17 side. 製品４の周囲に下緩衝材７ａ、緩衝構造体７ｂを配置した状態を示す斜視図A perspective view showing a state in which the lower cushioning material 7a and the cushioning structure 7b are arranged around the product 4. 本発明の第１実施形態に係る緩衝構造体７ｂを構成する緩衝部材３３の斜視図Perspective view of the cushioning member 33 constituting the cushioning structure 7b according to the first embodiment of the present invention. 第１実施形態の緩衝構造体７ｂを構成する保持部材３１の保持部３７の組み立て前の状態を示す平面図The plan view which shows the state before assembling the holding part 37 of the holding member 31 which constitutes the cushioning structure 7b of 1st Embodiment. 第１実施形態の緩衝構造体７ｂを構成する保持部材３１の保持部３７を組み立てた状態を示す斜視図A perspective view showing a state in which the holding portion 37 of the holding member 31 constituting the buffer structure 7b of the first embodiment is assembled. 図７の状態に組み立てられた保持部３７を、第２係合片４３側から緩衝部材３３の係合溝３５に挿入する様子を示す斜視図A perspective view showing how the holding portion 37 assembled in the state of FIG. 7 is inserted into the engaging groove 35 of the cushioning member 33 from the second engaging piece 43 side. 緩衝部材３３への保持部３７の挿入が完了した状態を第２側面３３ｄ側から見た斜視図A perspective view of a state in which the holding portion 37 has been inserted into the cushioning member 33 as viewed from the second side surface 33d side. 図９の状態から第２係合片４３の折り曲げ状態を元に戻した状態を示す斜視図A perspective view showing a state in which the bent state of the second engaging piece 43 is restored from the state of FIG. 保持部材３１の保持部３７に保持された緩衝部材３３を内側から見た斜視図Perspective view of the cushioning member 33 held by the holding portion 37 of the holding member 31 as viewed from the inside. 保持部材３１の保持部３７に保持された緩衝部材３３を外側から見た斜視図Perspective view of the cushioning member 33 held by the holding portion 37 of the holding member 31 as viewed from the outside. 本発明の第２実施形態に係る緩衝構造体７ｂを構成する保持部材３１の保持部３７の組み立て前の状態を示す平面図Top view showing the state before assembling the holding part 37 of the holding member 31 constituting the cushioning structure 7b which concerns on 2nd Embodiment of this invention. 第２実施形態の緩衝構造体７ｂを構成する保持部材３１の保持部３７を組み立てた状態を示す斜視図A perspective view showing a state in which the holding portion 37 of the holding member 31 constituting the buffer structure 7b of the second embodiment is assembled. 図１４の状態に組み立てられた保持部３７を、第２係合片４３側から緩衝部材３３の係合溝３５に挿入する様子を示す斜視図A perspective view showing how the holding portion 37 assembled in the state of FIG. 14 is inserted into the engaging groove 35 of the cushioning member 33 from the second engaging piece 43 side.

以下、図面を参照しながら本発明の実施形態について説明する。図１は、本発明の緩衝構造体７ｂを用いる包装材１００の分解斜視図である。包装材１００は、包装箱１と、包装箱１内に配置される下緩衝材７ａおよび緩衝構造体７ｂ（いずれも図４参照）を含む。包装箱１は、トレイ付きパレット２と、上箱３とから構成されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a packaging material 100 using the buffer structure 7b of the present invention. The packaging material 100 includes a packaging box 1, a lower cushioning material 7a and a cushioning structure 7b (both of which are referred to in FIG. 4) arranged in the packaging box 1. The packaging box 1 is composed of a pallet 2 with a tray and an upper box 3.

トレイ付きパレット２は、製品４（被梱包物）や下緩衝材７ａ（いずれも図４参照）が載置される底面５ａおよび底面５ａの周縁に立設された側壁５ｂから成るトレイ５と、トレイ５の下面に固定されるパレット６とを有する。トレイ５の各側壁５ｂの中央部には長円形状の第１貫通穴８ａが形成されている。 The pallet 2 with a tray includes a tray 5 composed of a bottom surface 5a on which the product 4 (packed object) and the lower cushioning material 7a (both of which see FIG. 4) are placed, and a side wall 5b erected on the peripheral edge of the bottom surface 5a. It has a pallet 6 fixed to the lower surface of the tray 5. An oval-shaped first through hole 8a is formed in the central portion of each side wall 5b of the tray 5.

上箱３は、製品４の側方および上方を覆う底面が開口した角筒状であり、側板３ａに連設された４枚のフラップを閉じることで天面３ｂが形成される。上箱３の各側板３ａの下部には、トレイ付きパレット２の第１貫通穴８ａと重なる位置に、第２貫通穴８ｂが形成されている。第１貫通穴８ａ、８ｂを重ねた状態で止め具１０（図２参照）を差し込むことにより、トレイ付きパレット２と上箱３とを連結する。 The upper box 3 has a square cylindrical shape with an open bottom surface covering the sides and the upper side of the product 4, and the top surface 3b is formed by closing the four flaps connected to the side plate 3a. A second through hole 8b is formed at a position overlapping the first through hole 8a of the tray-equipped pallet 2 at the lower portion of each side plate 3a of the upper box 3. The pallet with tray 2 and the upper box 3 are connected by inserting the stopper 10 (see FIG. 2) in a state where the first through holes 8a and 8b are overlapped.

パレット６は、例えば段ボールシートを積層して形成した複数の支柱部６ａと、各支柱部６ａの上下面に固定される天板（図示せず）および底板６ｂとから成り、各支柱部６ａの間には、フォークリフトやハンドパレット（パレット運搬用台車）のアームを挿入するアーム挿入穴９が形成されている。 The pallet 6 is composed of, for example, a plurality of support columns 6a formed by laminating corrugated cardboard sheets, and a top plate (not shown) and a bottom plate 6b fixed to the upper and lower surfaces of each support column 6a. An arm insertion hole 9 for inserting an arm of a forklift or a hand pallet (pallet transport trolley) is formed between them.

図２は、包装箱１に使用される止め具１０の使用前の状態を第１ヒンジ部１８ａ、１８ｂと垂直な方向から見た側面断面図である。図３は、止め具１０のキー部材１５が筒状部１６の内部に挿入された状態を鍔部１７側（包装箱１の外側）から見た斜視図である。 FIG. 2 is a side sectional view of the stopper 10 used for the packaging box 1 as viewed from a direction perpendicular to the first hinge portions 18a and 18b. FIG. 3 is a perspective view of the state in which the key member 15 of the stopper 10 is inserted into the tubular portion 16 as viewed from the flange portion 17 side (outside of the packaging box 1).

図２および図３に示すように、止め具１０は、ベース部材１４と、ベース部材１４に対し折り曲げ可能に連結されるキー部材１５とで構成される。ベース部材１４は、筒状部１６と、筒状部１６の一端に設けられた鍔部１７と、筒状部１６の相対向する内面に第１ヒンジ部１８ａ、１８ｂを介して回動可能に連結された一対のフック部材１９ａ、１９ｂを有している。フック部材１９ａ、１９ｂは、それぞれ第１ヒンジ部１８ａ、１８ｂを基端部として断面視Ｌ字形状に屈曲しており、先端部が筒状部１６から突出している。 As shown in FIGS. 2 and 3, the stopper 10 is composed of a base member 14 and a key member 15 that is foldably connected to the base member 14. The base member 14 can be rotated via the first hinge portions 18a and 18b on the cylindrical portion 16, the flange portion 17 provided at one end of the tubular portion 16, and the opposing inner surfaces of the tubular portion 16. It has a pair of hook members 19a and 19b connected to each other. The hook members 19a and 19b are bent in an L-shape in cross section with the first hinge portions 18a and 18b as base ends, respectively, and the tip portions protrude from the tubular portion 16.

キー部材１５は、筒状部１６の内寸とほぼ同じ外寸の押し開き部２５を有する。第２ヒンジ部２４に沿ってキー部材１５を折り曲げてベース部材１４側へ折り返すことにより、押し開き部２５がフック部材１９ａ、１９ｂに当接する。そして、押し開き部２５をベース部材１４の鍔部１７側から筒状部１６の内部に挿入する。これにより、フック部材１９ａ、１９ｂが押し開き部２５によって押圧され、フック部材１９ａ、１９ｂは、それぞれ第１ヒンジ部１８ａ、１８ｂを回動軸として筒状部１６の外側（図２の矢印方向）に回動する。 The key member 15 has a push-open portion 25 having an outer dimension substantially the same as the inner dimension of the tubular portion 16. By bending the key member 15 along the second hinge portion 24 and folding it back toward the base member 14, the push-open portion 25 comes into contact with the hook members 19a and 19b. Then, the push-open portion 25 is inserted into the tubular portion 16 from the flange portion 17 side of the base member 14. As a result, the hook members 19a and 19b are pressed by the push-open portion 25, and the hook members 19a and 19b are outside the cylindrical portion 16 with the first hinge portions 18a and 18b as rotation axes (in the direction of the arrow in FIG. 2). Rotates to.

図３に示すように、キー部材１５が完全にベース部１４（筒状部１６）の内部に挿入された状態では、押し開き部２５によって押圧されたフック部材１９ａ、１９ｂの先端が筒状部１６から鍔部１７と略平行に突出する。これにより、トレイ付きパレット２の側壁５ｂと上箱３とが鍔部１７とフック部材１９ａ、１９ｂによって挟持される。 As shown in FIG. 3, when the key member 15 is completely inserted into the base portion 14 (cylindrical portion 16), the tips of the hook members 19a and 19b pressed by the push-opening portion 25 are tubular portions. It protrudes from 16 substantially parallel to the flange portion 17. As a result, the side wall 5b of the tray-equipped pallet 2 and the upper box 3 are sandwiched by the flange portion 17 and the hook members 19a and 19b.

図４は、製品４の周囲に下緩衝材７ａ、緩衝構造体７ｂを配置した状態を示す斜視図である。図４ではトレイ付きパレット２および上箱３の記載を省略している。下緩衝材７ａは、製品４の下端部の４隅に配置され、製品４の下部を外部衝撃から保護する。 FIG. 4 is a perspective view showing a state in which the lower cushioning material 7a and the cushioning structure 7b are arranged around the product 4. In FIG. 4, the description of the pallet with tray 2 and the upper box 3 is omitted. The lower cushioning material 7a is arranged at the four corners of the lower end portion of the product 4, and protects the lower portion of the product 4 from an external impact.

緩衝構造体７ｂは、製品４の上面から左側面および右側面に沿って配置され、製品４の左側面および右側面を外部衝撃から保護する。緩衝構造体７ｂは、保持部材３１と、緩衝部材３３とを有する。保持部材３１は、一枚の段ボールシートを折り曲げて形成される。保持部材３１は、製品４の上面に対向する上面部３１ａと、上面部３１ａに隣接する３つの側面部３１ｂ（図４では２つの側面部３１ｂが視認可能）とを有する。緩衝部材３３は、製品４の側面と対峙する保持部材３１の３つの側面部３１ｂの１箇所以上（図４では４箇所が視認可能）に保持される。 The buffer structure 7b is arranged along the left side surface and the right side surface from the upper surface of the product 4 to protect the left side surface and the right side surface of the product 4 from external impact. The buffer structure 7b has a holding member 31 and a buffer member 33. The holding member 31 is formed by bending a single corrugated cardboard sheet. The holding member 31 has an upper surface portion 31a facing the upper surface of the product 4 and three side surface portions 31b adjacent to the upper surface portion 31a (two side surface portions 31b are visible in FIG. 4). The cushioning member 33 is held at one or more of the three side surface portions 31b of the holding member 31 facing the side surface of the product 4 (four locations are visible in FIG. 4).

図１に示した包装箱１を用いて製品４を梱包する手順について説明する。先ず、トレイ付きパレット２の底面５ａ上に製品４を載置する。次に、製品４の下方および側面に下緩衝材７ａ、緩衝構造体７ｂを装着し、上箱３を被せた後、トレイ付きパレット２の各側壁５ｂを起立させる。最後に、側壁５ｂの第１貫通穴８ａと、上箱３の第２貫通穴８ｂを重ねた状態で止め具１０のベース部１４を差し込み、押し開き部２５を筒状部１６の内部に挿入することにより、トレイ付きパレット２と上箱３とを一体に連結する。 A procedure for packing the product 4 using the packaging box 1 shown in FIG. 1 will be described. First, the product 4 is placed on the bottom surface 5a of the pallet 2 with a tray. Next, the lower cushioning material 7a and the cushioning structure 7b are attached to the lower and side surfaces of the product 4, the upper box 3 is covered, and then each side wall 5b of the tray-equipped pallet 2 is erected. Finally, the base portion 14 of the stopper 10 is inserted with the first through hole 8a of the side wall 5b and the second through hole 8b of the upper box 3 overlapped, and the push-open portion 25 is inserted inside the tubular portion 16. By doing so, the pallet 2 with a tray and the upper box 3 are integrally connected.

包装箱１を開梱する際は、図３の状態から止め具１０のキー部材１５を押し上げることにより、押し開き部２５を筒状部１６から引き抜く。押し開き部２５の引き抜き動作に伴い、押し開き部２５に押圧されて外側に回動していたフック部材１９ａ、１９ｂが第１ヒンジ部１８の復元力によって内側に回動し、図２の状態に戻る。最後にベース部１４を第１貫通穴８ａ、８ｂから引き抜いてトレイ付きパレット２の側壁５ｂと上箱３との連結を解除する。 When unpacking the packaging box 1, the push-opening portion 25 is pulled out from the tubular portion 16 by pushing up the key member 15 of the stopper 10 from the state shown in FIG. Along with the pulling-out operation of the push-open portion 25, the hook members 19a and 19b that were pressed by the push-open portion 25 and rotated outward are rotated inward by the restoring force of the first hinge portion 18, and the state shown in FIG. Return to. Finally, the base portion 14 is pulled out from the first through holes 8a and 8b to release the connection between the side wall 5b of the tray-equipped pallet 2 and the upper box 3.

図５は、本発明の第１実施形態に係る緩衝構造体７ｂを構成する緩衝部材３３を保持部材３１側から見た斜視図である。緩衝部材３３は、ＥＰＥ（発泡ポリエチレン）により直方体状に形成されている。緩衝部材３３の材質としては、ＥＰＥの他、発泡スチロール、ウレタン等の発泡性樹脂、若しくは段ボールシートを複数枚積層して形成された積層段ボール等が用いられる。 FIG. 5 is a perspective view of the cushioning member 33 constituting the cushioning structure 7b according to the first embodiment of the present invention as viewed from the holding member 31 side. The cushioning member 33 is formed in a rectangular parallelepiped shape by EPE (foamed polyethylene). As the material of the cushioning member 33, in addition to EPE, a foamable resin such as styrofoam or urethane, or a laminated corrugated cardboard formed by laminating a plurality of corrugated cardboard sheets is used.

緩衝部材３３は、製品４の外装面（緩衝面）に接触する接触面３３ａと、接触面３３ａと対向する対向面３３ｂと、接触面３３ａおよび対向面３３ｂと交差する第１側面３３ｃと、第１側面と対向する第２側面３３ｄと、を有する。緩衝部材３３には、対向面３３ｂを横断するように第１側面３３ｃから第２側面３３ｄまで貫通する係合溝３５が形成されている。係合溝３５は、対向面３３ｂから接触面３３ａに向けて延びる第１係合溝３５ａと、第１係合溝３５ａに連通して第１係合溝３５ａと直交する方向に延在する第２係合溝３５ｂとで構成される側面視Ｌ字状である。 The cushioning member 33 includes a contact surface 33a that contacts the exterior surface (buffer surface) of the product 4, a facing surface 33b that faces the contact surface 33a, and a first side surface 33c that intersects the contact surface 33a and the facing surface 33b. It has a second side surface 33d facing the first side surface. The cushioning member 33 is formed with an engaging groove 35 that penetrates from the first side surface 33c to the second side surface 33d so as to cross the facing surface 33b. The engaging groove 35 has a first engaging groove 35a extending from the facing surface 33b toward the contact surface 33a, and a first engaging groove 35a communicating with the first engaging groove 35a and extending in a direction orthogonal to the first engaging groove 35a. It has an L-shape when viewed from the side, which is composed of two engaging grooves 35b.

図６は、第１実施形態の緩衝構造体７ｂを構成する保持部材３１の保持部３７の組み立て前の状態を示す平面図である。保持部３７は、保持部材３１の所定箇所に形成されており、第１挿入片４０、第２挿入片４１、第１係合片４２、第２係合片４３を有する。 FIG. 6 is a plan view showing a state before assembling the holding portion 37 of the holding member 31 constituting the buffer structure 7b of the first embodiment. The holding portion 37 is formed at a predetermined position of the holding member 31, and has a first insertion piece 40, a second insertion piece 41, a first engaging piece 42, and a second engaging piece 43.

第１挿入片４０は、第１折り線Ｌ１と平面視コ字状の切り込み線Ｃ１とで囲まれており、第１折り線Ｌ１を介して保持部材３１に連設されている。第２挿入片４１は、第１折り線Ｌ１と平行な第２折り線Ｌ２と、第１切り込み線Ｃ１の第２折り線Ｌ２に対向する部分から第２折り線Ｌ２に向けて垂直に延びる一対の第２切り込み線Ｃ２とで囲まれており、第２折り線Ｌ２を介して第１挿入片４０に連設されている。第２挿入片４１の長手方向の両端部には、第２切り込み線Ｃ２を挟んで第１係合片４２、第２係合片４３が形成されている。第２折り線Ｌ２は第１挿入片４０と第２係合片４３との間まで延在している。 The first insertion piece 40 is surrounded by a first fold line L1 and a U-shaped cut line C1 in a plan view, and is connected to the holding member 31 via the first fold line L1. The second insertion piece 41 is a pair of a second fold line L2 parallel to the first fold line L1 and a pair extending vertically from the portion of the first cut line C1 facing the second fold line L2 toward the second fold line L2. It is surrounded by the second cutting line C2 of the above, and is connected to the first insertion piece 40 via the second folding line L2. A first engaging piece 42 and a second engaging piece 43 are formed at both ends of the second insertion piece 41 in the longitudinal direction with the second cutting line C2 interposed therebetween. The second folding line L2 extends between the first insertion piece 40 and the second engaging piece 43.

第１折り線Ｌ１と第２折り線Ｌ２との距離ｄ１は、緩衝部材３３の第１係合溝３５ａの深さｗ１（図５参照）と略等しい。第２折り線Ｌ２と第２挿入片４１、第１係合片４２および第２係合片４３の先端部との距離ｄ２は、緩衝部材３３の第２係合溝３５ｂの深さｗ２（図５参照）と略等しい。一対の第２切り込み線Ｃ２の間の距離ｄ３（後述する第１係合片４２と第２係合片４３との距離）は、緩衝部材３３の第１側面３３ｃから第２側面３３ｄまでの幅ｗ３（図５参照）と略等しい。 The distance d1 between the first fold line L1 and the second fold line L2 is substantially equal to the depth w1 (see FIG. 5) of the first engagement groove 35a of the cushioning member 33. The distance d2 between the second folding line L2 and the tips of the second insertion piece 41, the first engaging piece 42, and the second engaging piece 43 is the depth w2 of the second engaging groove 35b of the cushioning member 33 (FIG. 5) is almost equal to. The distance d3 (distance between the first engaging piece 42 and the second engaging piece 43, which will be described later) between the pair of second cutting lines C2 is the width from the first side surface 33c to the second side surface 33d of the cushioning member 33. It is substantially equal to w3 (see FIG. 5).

次に、本実施形態の緩衝構造体７ｂの組み立て方法について説明する。先ず、図６の状態から第１切り込み線Ｃ１に沿って第１挿入片４０を切り起こし、第１折り線Ｌ１に沿って保持部材３１の内側に略垂直に折り曲げる。次に、一対の第２切り込み線Ｃ２に沿って第２挿入片４１および第２係合片４３を切り起こし、第２折り線Ｌ２に沿って第１挿入片４０に対して略垂直に折り曲げる。 Next, a method of assembling the buffer structure 7b of the present embodiment will be described. First, from the state of FIG. 6, the first insertion piece 40 is cut up along the first cutting line C1 and bent substantially vertically inside the holding member 31 along the first folding line L1. Next, the second insertion piece 41 and the second engaging piece 43 are cut up along the pair of second cutting lines C2 and bent substantially perpendicular to the first insertion piece 40 along the second folding line L2.

図７は、第１実施形態の緩衝構造体７ｂを構成する保持部材３１の保持部３７を組み立てた状態を示す斜視図である。なお、保持部材３１は図４に示したように製品４の側面を覆うように延在しているが、図７および後述する図８〜図１１、図１４、図１５では、説明の便宜のため保持部材３１の一部のみを矩形状に記載している。 FIG. 7 is a perspective view showing a state in which the holding portion 37 of the holding member 31 constituting the buffer structure 7b of the first embodiment is assembled. The holding member 31 extends so as to cover the side surface of the product 4 as shown in FIG. 4, but it is for convenience of explanation in FIG. 7 and FIGS. 8 to 11, 14, and 15 which will be described later. Therefore, only a part of the holding member 31 is described in a rectangular shape.

図７に示すように、第１挿入片４０は、保持部材３１から第１折り線Ｌ１を介して略垂直に起立する。第２挿入片４１は、第１挿入片４０から第２折り線Ｌ２を介して保持部材３１と略平行に、即ち、第１挿入片４０と略垂直に延在する。第２係合片４３は、第２係合溝３５ｂへの挿入方向（図８の矢印方向）に対し第２挿入片４１の下流側に隣接して、第２折り線Ｌ２を介して保持部材３１と略平行に、即ち、第１挿入片４０と略垂直に延在する。また、第２挿入片４１の折り曲げによって、第１挿入片４０の第２係合片４３と反対側の端部に第１係合片４２が起立する。 As shown in FIG. 7, the first insertion piece 40 stands up substantially vertically from the holding member 31 via the first folding line L1. The second insertion piece 41 extends from the first insertion piece 40 via the second folding line L2 substantially parallel to the holding member 31, that is, substantially perpendicular to the first insertion piece 40. The second engaging piece 43 is adjacent to the downstream side of the second insertion piece 41 with respect to the insertion direction into the second engaging groove 35b (the direction of the arrow in FIG. 8), and is a holding member via the second folding line L2. It extends substantially parallel to 31, that is, approximately perpendicular to the first insertion piece 40. Further, by bending the second insertion piece 41, the first engagement piece 42 stands up at the end of the first insertion piece 40 opposite to the second engagement piece 43.

次に、図７の状態に組み立てられた保持部３７の第２係合片４３側を、図８に示すように緩衝部材３３の第１側面３３ｃ側から係合溝３５に挿入する。より詳細には、第１挿入片４０を第１係合溝３５ａに、第２係合片４３および第２挿入片４１を第２係合溝３５ｂに、それぞれ挿入する。そして、第１係合片４２が第１側面３３ｃに当接したとき挿入動作を終了する。 Next, the second engaging piece 43 side of the holding portion 37 assembled in the state of FIG. 7 is inserted into the engaging groove 35 from the first side surface 33c side of the cushioning member 33 as shown in FIG. More specifically, the first insertion piece 40 is inserted into the first engagement groove 35a, and the second engagement piece 43 and the second insertion piece 41 are inserted into the second engagement groove 35b, respectively. Then, when the first engaging piece 42 comes into contact with the first side surface 33c, the insertion operation ends.

図９は、緩衝部材３３への保持部３７の挿入が完了した状態を第２側面３３ｄ側から見た斜視図である。図９に示すように、緩衝部材３３の第２側面３３ｄから外側に第２係合片４３が突出している。この状態から、第２折り線Ｌ２に沿って折り曲げられていた第２係合片４３を第２切り込み線Ｃ２に沿って切り起こし、第２折り線Ｌ２での折り曲げ状態を元に戻す。 FIG. 9 is a perspective view of a state in which the holding portion 37 has been inserted into the cushioning member 33 as viewed from the second side surface 33d side. As shown in FIG. 9, the second engaging piece 43 projects outward from the second side surface 33d of the cushioning member 33. From this state, the second engaging piece 43 that has been bent along the second fold line L2 is cut up along the second cut line C2, and the bent state at the second fold line L2 is restored.

図１０は、図９の状態から第２係合片４３の折り曲げ状態を元に戻した状態を示す斜視図である。図１０に示すように、第２側面３３ｄ側では第２係合片４３が第２係合溝３５ｂに対して略垂直となるため、保持部３７の引き抜き方向（第１側面３３ｃ方向）への移動が規制される。一方、第１側面３３ｃ側では第１係合片４２が第２係合溝３５ｂに対して略垂直となっているため、保持部３７の挿入方向（第２側面３３ｄ方向）への移動が規制される。 FIG. 10 is a perspective view showing a state in which the bent state of the second engaging piece 43 is restored from the state of FIG. As shown in FIG. 10, since the second engaging piece 43 is substantially perpendicular to the second engaging groove 35b on the second side surface 33d side, the holding portion 37 is drawn in the pulling direction (first side surface 33c direction). Movement is restricted. On the other hand, on the first side surface 33c side, the first engaging piece 42 is substantially perpendicular to the second engaging groove 35b, so that the movement of the holding portion 37 in the insertion direction (second side surface 33d direction) is restricted. Will be done.

図１１および図１２は、それぞれ保持部材３１の保持部３７に装着された緩衝部材３３を内側（製品４側）および外側（上箱３側）から見た斜視図である。緩衝部材３３は、第１係合片４２と第２係合片４３とによって緩衝部材３３の左右方向（図１１の矢印Ｘ方向）への移動が規制される。また、第２係合溝３５ｂに挿入された第２挿入片４１（図１０参照）によって緩衝部材３３の上下方向（図１１の矢印Ｙ方向）および内外方向（図１１の矢印Ｚ方向）への移動が規制される。 11 and 12 are perspective views of the cushioning member 33 attached to the holding portion 37 of the holding member 31 as viewed from the inside (product 4 side) and the outside (upper box 3 side), respectively. The cushioning member 33 is restricted from moving in the left-right direction (arrow X direction in FIG. 11) by the first engaging piece 42 and the second engaging piece 43. Further, the second insertion piece 41 (see FIG. 10) inserted into the second engagement groove 35b moves the cushioning member 33 in the vertical direction (arrow Y direction in FIG. 11) and inward / outward direction (arrow Z direction in FIG. 11). Movement is restricted.

従って、輸送中の振動や衝撃等によって緩衝部材３３が移動しないため、製品４に対する緩衝部材３３の緩衝位置を精度よく位置決めすることができる。また、保持部３７は保持部材３１から切り起こして組み立てるだけの簡単な構造であるため、緩衝構造体７ｂの構成の簡素化や組み立て作業性も維持することができる。さらに、緩衝部材３３の固定のための別部材を必要としないため、部材点数の削減や梱包材料の低コスト化を図ることができる。 Therefore, since the cushioning member 33 does not move due to vibration, impact, or the like during transportation, the buffering position of the cushioning member 33 with respect to the product 4 can be accurately positioned. Further, since the holding portion 37 has a simple structure that is simply cut up from the holding member 31 and assembled, the structure of the buffer structure 7b can be simplified and the assembling workability can be maintained. Further, since a separate member for fixing the cushioning member 33 is not required, the number of members can be reduced and the cost of the packaging material can be reduced.

緩衝構造体７ｂを廃棄する際は、図９に示すように第２係合片４３を第２折り線Ｌ２で再び折り曲げて緩衝部材３３を第１側面３３ｃ側から引き抜くことにより、保持部材３１と緩衝部材３３を簡単に分離することができる。従って、保持部材３１と緩衝部材３３の材質が異なる場合の分別廃棄が容易となり、リサイクル性も向上する。 When the cushioning structure 7b is discarded, as shown in FIG. 9, the second engaging piece 43 is bent again at the second folding line L2 and the cushioning member 33 is pulled out from the first side surface 33c side to form the holding member 31. The cushioning member 33 can be easily separated. Therefore, when the materials of the holding member 31 and the cushioning member 33 are different, the separate disposal becomes easy and the recyclability is improved.

また、図１２に示すように、緩衝部材３３が保持部材３１の外側面から突出しないため、製品４に緩衝構造体７ｂを装着して上箱３を被せる際に上箱３が緩衝部材３３の突出部分に引っ掛かるおそれもなくなる。 Further, as shown in FIG. 12, since the cushioning member 33 does not protrude from the outer surface of the holding member 31, the upper box 3 is attached to the cushioning member 33 when the cushioning structure 7b is attached to the product 4 and the upper box 3 is covered with the product 4. There is no risk of getting caught in the protruding part.

さらに、緩衝構造体７ｂは、保持部材３１と、保持部材３１の保持部３７に着脱可能に装着される緩衝部材３３とで構成されるため、保持部材３１に形成される保持部３７の位置を変更することにより製品４に対する緩衝部材３３の接触位置（緩衝位置）を任意に調整することができる。保持部３７の位置は、保持部材３１を形成する段ボールシートを打ち抜く金型の変更によって容易に変更することができる。 Further, since the cushioning structure 7b is composed of the holding member 31 and the cushioning member 33 that is detachably attached to the holding portion 37 of the holding member 31, the position of the holding portion 37 formed on the holding member 31 can be determined. By changing the contact position (buffer position) of the cushioning member 33 with respect to the product 4, the contact position (buffering position) can be arbitrarily adjusted. The position of the holding portion 37 can be easily changed by changing the die for punching the corrugated cardboard sheet forming the holding member 31.

図１３は、本発明の第２実施形態に係る緩衝構造体７ｂを構成する保持部材３１の保持部３７の組み立て前の状態を示す平面図である。本実施形態では、保持部３７は、第１挿入片４０、第２挿入片４１、第１係合片４２、第２係合片４３に加えて第３挿入片４５を有する。第３挿入片４５は、平面視コ字状の第３切り込み線Ｃ３で囲まれており、第２折り線Ｌ２を挟んで第２挿入片４１と反対側に、第１挿入片４０と重なるように形成されている。また、第２折り線Ｌ２は第２挿入片４１と第３挿入片４５との間には形成されていない。保持部３７の他の部分の構成は図６に示した第１実施形態と同様である。 FIG. 13 is a plan view showing a state before assembling the holding portion 37 of the holding member 31 constituting the buffer structure 7b according to the second embodiment of the present invention. In the present embodiment, the holding portion 37 has a third insertion piece 45 in addition to the first insertion piece 40, the second insertion piece 41, the first engagement piece 42, and the second engagement piece 43. The third insertion piece 45 is surrounded by a third cutting line C3 having a U-shape in a plan view, and overlaps the first insertion piece 40 on the opposite side of the second folding line L2 from the second insertion piece 41. Is formed in. Further, the second folding line L2 is not formed between the second insertion piece 41 and the third insertion piece 45. The configuration of the other portion of the holding portion 37 is the same as that of the first embodiment shown in FIG.

図１４は、第２実施形態の緩衝構造体７ｂを構成する保持部材３１の保持部３７を組み立てた状態を示す斜視図である。図１４に示すように、第２挿入片４１を第２折り線Ｌ２に沿って折り曲げることによって、第１挿入片４０から第３切り込み線Ｃ３に沿って第３挿入片４５が切り起こされる。 FIG. 14 is a perspective view showing a state in which the holding portion 37 of the holding member 31 constituting the buffer structure 7b of the second embodiment is assembled. As shown in FIG. 14, by bending the second insertion piece 41 along the second folding line L2, the third insertion piece 45 is cut and raised from the first insertion piece 40 along the third cutting line C3.

図１５は、図１４の状態に組み立てられた保持部３７を、第２係合片４３側から緩衝部材３３の係合溝３５に挿入する様子を示す斜視図である。緩衝部材３３に形成される係合溝３５は、対向面３３ｂから接触面３３ａに向けて延びる第１係合溝３５ａと、第１係合溝３５ａに連通して第１係合溝３５ａと直交する方向に延在する第２係合溝３５ｂと、第１係合溝３５ａから第２係合溝３５ｂと反対側に延在する第３係合溝３５ｃと、で構成される側面視Ｔ字状である。 FIG. 15 is a perspective view showing how the holding portion 37 assembled in the state of FIG. 14 is inserted into the engaging groove 35 of the cushioning member 33 from the side of the second engaging piece 43. The engaging groove 35 formed in the cushioning member 33 communicates with the first engaging groove 35a extending from the facing surface 33b toward the contact surface 33a and the first engaging groove 35a, and is orthogonal to the first engaging groove 35a. A side view T-shape composed of a second engaging groove 35b extending in the direction of the first engaging groove and a third engaging groove 35c extending from the first engaging groove 35a to the opposite side of the second engaging groove 35b. It is in the shape.

図１４の状態に組み立てられた保持部３７の第２係合片４３側を、図１５に示すように緩衝部材３３の第１側面３３ｃ側から係合溝３５に挿入する。より詳細には、第１挿入片４０を第１係合溝３５ａに、第２係合片４３および第２挿入片４１を第２係合溝３５ｂに、第３挿入片４５を第３係合溝３５ｃに、それぞれ挿入する。そして、第１係合片４２が第１側面３３ｃに当接したとき挿入動作を終了する。 The second engaging piece 43 side of the holding portion 37 assembled in the state of FIG. 14 is inserted into the engaging groove 35 from the first side surface 33c side of the cushioning member 33 as shown in FIG. More specifically, the first insertion piece 40 is in the first engagement groove 35a, the second engagement piece 43 and the second insertion piece 41 are in the second engagement groove 35b, and the third insertion piece 45 is in the third engagement groove 35b. Each is inserted into the groove 35c. Then, when the first engaging piece 42 comes into contact with the first side surface 33c, the insertion operation ends.

第１実施形態の構成では、緩衝部材３３の上下端部を持ち上げて回転させる方向（図１５の矢印Ｒ、Ｒ′方向）の力が加えられたとき、第１挿入片４０および第２挿入片４１が、それぞれ第１係合溝３５ａおよび第２係合溝３５ｂから抜けてしまい、緩衝部材３３が保持部材３１から脱落するおそれがあった。特に、緩衝部材３３がＥＰＥ等の軟らかい材質で形成されている場合に緩衝部材３３の脱落が発生する可能性が高くなる。 In the configuration of the first embodiment, when a force is applied in the direction of lifting and rotating the upper and lower ends of the cushioning member 33 (directions of arrows R and R'in FIG. 15), the first insertion piece 40 and the second insertion piece 40 41 may come off from the first engaging groove 35a and the second engaging groove 35b, respectively, and the cushioning member 33 may fall off from the holding member 31. In particular, when the cushioning member 33 is made of a soft material such as EPE, there is a high possibility that the cushioning member 33 will fall off.

本実施形態では、保持部３７の第３挿入片４５が緩衝部材３３の第３係合溝３５ｃに挿入されることで、緩衝部材３３に回転方向（矢印Ｒ、Ｒ′方向）の力が加えられたとき第３挿入片４５が抜け止め（規制部）となる。従って、緩衝部材３３が軟らかい材質で形成されている場合であっても、保持部材３１からの緩衝部材３３の脱落を抑制することができる。 In the present embodiment, the third insertion piece 45 of the holding portion 37 is inserted into the third engaging groove 35c of the cushioning member 33, so that a force in the rotational direction (arrows R, R'direction) is applied to the cushioning member 33. When this is done, the third insertion piece 45 serves as a retaining (regulatory part). Therefore, even when the cushioning member 33 is made of a soft material, it is possible to prevent the cushioning member 33 from falling off from the holding member 31.

その他本発明は、上記各実施形態に限定されず、本発明の趣旨を逸脱しない範囲で種々の変更が可能である。例えば、上記各実施形態では、トレイ５とパレット６とから成るトレイ付きパレット２を用いた包装箱１に用いる緩衝構造体７ｂについて説明したが、本発明の緩衝構造体７ｂは、パレット６が設けられておらず、上箱３とトレイ５のみから成るＣ式包装箱や、上箱とトレイ（底面）が一体となったＡ式やＢ式の包装箱に対しても同様に適用できるのはもちろんである。 Others The present invention is not limited to each of the above embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, in each of the above embodiments, the buffer structure 7b used for the packaging box 1 using the pallet 2 with a tray composed of the tray 5 and the pallet 6 has been described, but the buffer structure 7b of the present invention is provided with the pallet 6. The same applies to C-type packaging boxes consisting of only the upper box 3 and tray 5, and A-type and B-type packaging boxes in which the upper box and tray (bottom surface) are integrated. Of course.

本発明は、被梱包物と、被梱包物を包装する包装箱との隙間に配置される緩衝構造体に利用可能である。本発明の利用により、被梱包物に対する緩衝位置や緩衝力を容易に変更可能であり、組み立て作業性も維持可能な緩衝構造体およびそれを備えた包装材を提供することができる。 The present invention can be used for a buffer structure arranged in a gap between a packaged object and a packaging box for packaging the packaged object. By utilizing the present invention, it is possible to provide a buffer structure in which the cushioning position and cushioning force with respect to the object to be packed can be easily changed and the assembly workability can be maintained, and a packaging material provided with the buffer structure.

１ 包装箱
２ トレイ付きパレット
３ 上箱
４ 製品（被梱包物）
４ａ 外装面（緩衝面）
７ａ 下緩衝材
７ｂ 緩衝構造体
３１ 保持部材
３３ 緩衝部材
３３ａ 接触面
３３ｂ 対向面
３３ｃ 第１側面
３３ｄ 第２側面
３５ 係合溝
３５ａ 第１係合溝
３５ｂ 第２係合溝
３５ｃ 第３係合溝
３７ 保持部
４０ 第１挿入片
４１ 第２挿入片
４２ 第１係合片
４３ 第２係合片
４５ 第３挿入片
１００ 包装材
Ｌ１ 第１折り線
Ｌ２ 第２折り線
Ｃ１ 第１切り込み線
Ｃ２、Ｃ３ 第２切り込み線
Ｃ４ 第３切り込み線 1 Packaging box 2 Pallet with tray 3 Upper box 4 Product (packed item)
4a Exterior surface (buffer surface)
7a Lower cushioning material 7b Cushioning structure 31 Holding member 33 Cushioning member 33a Contact surface 33b Opposing surface 33c First side surface 33d Second side surface 35 Engagement groove 35a First engagement groove 35b Second engagement groove 35c Third engagement groove 37 Holding part 40 1st insertion piece 41 2nd insertion piece 42 1st engagement piece 43 2nd engagement piece 45 3rd insertion piece 100 Packaging material L1 1st fold line L2 2nd fold line C1 1st cut line C2, C3 2nd cut line C4 3rd cut line

Claims (7)

包装箱と、前記包装箱に収納される被梱包物との間に配置され、前記被梱包物に加わる衝撃を緩衝する緩衝構造体であって、
前記緩衝構造体は、
前記被梱包物の緩衝面に接触する一つ以上の緩衝部材と、
前記緩衝部材を所定位置に着脱可能に保持する保持部を有する平板状の保持部材と、
を備え、
前記緩衝部材は、前記緩衝面に接触する接触面と、前記接触面に対向する対向面と、前記接触面および前記対向面と交差する第１側面と、前記第１側面と対向する第２側面と、を含む多面体であり、
前記対向面を横断するように前記対向面から前記接触面に向けて延びる第１係合溝と、
前記第１係合溝に連通して前記第１係合溝に交差する方向に延在し、前記第１側面から前記第２側面まで貫通する第２係合溝と、
を含む係合溝が形成されており、
前記保持部は、前記保持部材の所定箇所から第１折り線および平面視コ字状の第１切り込み線に沿って切り起こされ、
前記保持部材から前記第１折り線を介して略垂直に起立する第１挿入片と、
前記第１折り線と平行な第２折り線を介して前記第１挿入片に対し略垂直に延在する第２挿入片と、
を有し、
前記第１挿入片および前記第２挿入片を、それぞれ前記第１係合溝および前記第２係合溝に挿入することで、前記保持部材に対し前記緩衝部材を保持することを特徴とする緩衝構造体。 It is a buffer structure that is arranged between the packaging box and the packaged object stored in the packaging box and cushions the impact applied to the packaged object.
The buffer structure is
One or more cushioning members that come into contact with the cushioning surface of the packaged object,
A flat plate-shaped holding member having a holding portion that detachably holds the cushioning member in a predetermined position,
With
The cushioning member includes a contact surface that contacts the cushioning surface, a facing surface that faces the contact surface, a first side surface that intersects the contact surface and the facing surface, and a second side surface that faces the first side surface. And is a polyhedron including
A first engaging groove extending from the facing surface toward the contact surface so as to cross the facing surface,
A second engaging groove that communicates with the first engaging groove and extends in a direction intersecting the first engaging groove and penetrates from the first side surface to the second side surface.
Engagement groove is formed including
The holding portion is cut up from a predetermined position of the holding member along the first folding line and the first U-shaped cut line in a plan view.
A first insertion piece that stands up substantially vertically from the holding member via the first folding line,
A second insert piece extending substantially perpendicular to the first insert piece via a second fold line parallel to the first fold line,
Have,
A buffer characterized by holding the cushioning member with respect to the holding member by inserting the first insertion piece and the second insertion piece into the first engaging groove and the second engaging groove, respectively. Structure. 前記保持部は、前記第１切り込み線の前記第２折り線に対向する部分から前記第２折り線に向けて延びる一対の第２切り込み線を有し、前記第２挿入片は、一対の前記第２切り込み線の間で前記第２折り線に沿って折り曲げて形成され、
前記第２係合溝への挿入方向に対し前記第２挿入片の上流側および下流側には、それぞれ前記第２折り線から前記第１挿入片に沿って延在する第１係合片および第２係合片が形成されており、
前記第１挿入片を第１係合溝に、前記第２挿入片および前記第３挿入片を第２係合溝にそれぞれ挿入した状態で、前記第１係合片および前記第２係合片が、それぞれ前記第１側面および前記第２側面の外側に突出することで前記緩衝部材の前記挿入方向の移動を規制することを特徴とする請求項１に記載の緩衝構造体。 The holding portion has a pair of second cut lines extending from a portion of the first cut line facing the second fold line toward the second fold line, and the second insertion piece is a pair of the above. It is formed by bending along the second fold line between the second cut lines.
On the upstream side and the downstream side of the second insertion piece with respect to the insertion direction into the second engagement groove, the first engagement piece and the first engagement piece extending along the first insertion piece from the second folding line, respectively. A second engagement piece is formed and
With the first insertion piece inserted into the first engaging groove and the second insertion piece and the third insertion piece inserted into the second engaging groove, the first engaging piece and the second engaging piece are inserted, respectively. The cushioning structure according to claim 1, wherein the first side surface and the second side surface project outwards to restrict the movement of the cushioning member in the insertion direction. 前記保持部の前記第１係合片と前記第２係合片との距離は、前記緩衝部材の前記第１側面から前記第２側面までの幅と略等しいことを特徴とする請求項２に記載の緩衝構造体。 2. The second aspect of the present invention is characterized in that the distance between the first engaging piece and the second engaging piece of the holding portion is substantially equal to the width from the first side surface to the second side surface of the cushioning member. The buffer structure described. 前記緩衝部材は、
前記第１係合溝および前記第２係合溝と、
前記第１係合溝に連通して前記第２係合溝と反対側に前記対向面と平行に延在し、前記第１側面から前記第２側面まで貫通する第３係合溝と、
で構成される前記係合溝が形成されており、
前記保持部は、一対の前記第２切り込み線の間で、前記第２折り線から前記第１折り線に向けて形成された平面視コ字状の第３切り込み線に沿って切り起こされ、前記第１挿入片に対し前記第２挿入片と反対側に略垂直に延在する第３挿入片を有し、
前記第１挿入片、前記第２挿入片および前記第３挿入片を、それぞれ前記第１係合溝、前記第２係合溝および前記第３係合溝に挿入することで、前記保持部材に対し前記緩衝部材を保持することを特徴とする請求項１乃至請求項３のいずれかに記載の緩衝構造体。 The cushioning member is
With the first engaging groove and the second engaging groove,
A third engaging groove that communicates with the first engaging groove, extends parallel to the facing surface on the side opposite to the second engaging groove, and penetrates from the first side surface to the second side surface.
The engaging groove composed of is formed.
The holding portion is cut and raised between the pair of the second cut lines along the plan-view U-shaped third cut line formed from the second fold line toward the first fold line. It has a third insert that extends substantially perpendicular to the first insert on the opposite side of the second insert.
By inserting the first insertion piece, the second insertion piece, and the third insertion piece into the first engagement groove, the second engagement groove, and the third engagement groove, respectively, the holding member is inserted. The cushioning structure according to any one of claims 1 to 3, wherein the cushioning member is held. 前記保持部材は、一枚の板状部材を折り曲げて形成され、前記被梱包物の上面に対向する上面部と、前記上面部に隣接する３つの側面部と、を有し、
前記保持部は、前記側面部に設けられていることを特徴とする請求項１乃至請求項４のいずれかに記載の緩衝構造体。 The holding member is formed by bending one plate-shaped member, and has an upper surface portion facing the upper surface of the packaged object and three side surface portions adjacent to the upper surface portion.
The buffer structure according to any one of claims 1 to 4, wherein the holding portion is provided on the side surface portion. 前記包装箱と、
請求項１乃至請求項５のいずれかに記載の緩衝構造体と、
を有する包装材。 With the packaging box
The buffer structure according to any one of claims 1 to 5.
Packaging material with. 前記包装箱は、前記緩衝構造体が装着された前記被梱包物に上方から被せる上箱を有することを特徴とする請求項６に記載の包装材。 The packaging material according to claim 6, wherein the packaging box has an upper box that covers the packaged object to which the buffer structure is mounted from above.

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