JP6593151B2

JP6593151B2 - Packing material

Info

Publication number: JP6593151B2
Application number: JP2015247715A
Authority: JP
Inventors: 坂本　　明
Original assignee: Icom Inc
Current assignee: Icom Inc
Priority date: 2015-12-18
Filing date: 2015-12-18
Publication date: 2019-10-23
Anticipated expiration: 2035-12-18
Also published as: JP2017109787A

Description

本発明は、梱包材、特に、電子部品が実装された回路基板など厚みの薄い板材を梱包するための梱包材に関する。 The present invention relates to a packaging material, and more particularly to a packaging material for packaging a thin plate material such as a circuit board on which electronic components are mounted.

一般的に、電気機器を梱包するために、例えば特許文献１などに記載されているように、段ボール製の外装箱及び外装箱の内部で電気機器を保持するための段ボール製の梱包材が用いられている。段ボール製の梱包材の場合、抜き型を上下方向に移動させて所定の位置に折り曲げ線を付けたり、所定形状に打ち抜いたりすることが行われている。周知のように、段ボールは、断面が波形になるように形成された中芯を上下からライナーで補強した複合材であり、最も薄いものでも１ｍｍ程度、一般的には３〜５ｍｍ程度の厚みを有している。また、抜き型に取り付けられた刃が波形に形成された中芯のどの部分を突き抜けるかによって切断条件が変わるため、一定寸法（例えば３ｍｍ）より小さい穴又は狭いスリットを打ち抜くことができない。 Generally, in order to pack electrical equipment, for example, as described in Patent Document 1, a corrugated cardboard packaging box and a packaging material made of corrugated cardboard for holding the electrical equipment inside the packaging box are used. It has been. In the case of a corrugated packaging material, a punching die is moved in the vertical direction so that a folding line is formed at a predetermined position or punched into a predetermined shape. As is well known, a corrugated cardboard is a composite material in which a core formed so as to have a corrugated cross section is reinforced with a liner from above and below, and even the thinnest has a thickness of about 1 mm, generally about 3 to 5 mm. Have. Further, since the cutting conditions change depending on which part of the core formed in a corrugated shape by the blade attached to the punching die, it is impossible to punch holes or narrow slits smaller than a certain dimension (for example, 3 mm).

一方、外装箱に収納されて販売等される電気機器の中には、電子部品が実装された回路基板など筐体の内部に固定されていない部品等も含まれる。回路基板の厚みは、一般的には１〜２ｍｍ程度である。上記特許文献１では、梱包材の側壁に回路基板の厚みよりも大きな係合孔を形成し、回路基板を包装する樹脂製の緩衝材などによって係合孔と回路基板の隙間を埋めている。 On the other hand, the electrical equipment housed in the outer box and sold includes parts that are not fixed inside the casing, such as a circuit board on which electronic parts are mounted. The thickness of the circuit board is generally about 1 to 2 mm. In Patent Document 1, an engagement hole larger than the thickness of the circuit board is formed on the side wall of the packaging material, and a gap between the engagement hole and the circuit board is filled with a resin cushioning material or the like that wraps the circuit board.

一方、最も基本的な従来の梱包材１１０は、図５に示すように、例えば外装箱１００の内側の高さとほぼ等しい幅を有するベース材（段ボール製）１１１の上に、複数枚の段ボール片をその厚み方向（図中左右方向）に接着剤で貼り合わせた２つのブロック１１２を、回路基板１０１の厚みに合わせた隙間１１３を空けてさらに接着して形成されている。回路基板１０１を収納するにあたっては、２つの梱包材１１０を用いて、隙間１１３に回路基板１０１の両端部を差し込み、回路基板１０１が略水平でベース材１１１が略垂直になるように、外装箱１００の内部に収納する。 On the other hand, as shown in FIG. 5, the most basic conventional packing material 110 has a plurality of cardboard pieces on a base material (made of cardboard) 111 having a width substantially equal to the inner height of the exterior box 100, for example. The two blocks 112 bonded together with an adhesive in the thickness direction (left and right direction in the figure) are further bonded together with a gap 113 corresponding to the thickness of the circuit board 101. When storing the circuit board 101, the two packaging materials 110 are used to insert both ends of the circuit board 101 into the gap 113 so that the circuit board 101 is substantially horizontal and the base material 111 is substantially vertical. 100 is housed inside.

このような従来の梱包材１１０は、ブロック１１２の接着位置を調節することにより様々な厚みの回路基板に対応することができるけれども、製造工程が複雑であり、製造コストが高くなる。さらに、外装箱とは異なり、開梱後に折りたたむことができないため、梱包材１１０がそのままゴミ箱に投入され、リサイクルされにくいという問題点を有している。 Such a conventional packing material 110 can be applied to circuit boards having various thicknesses by adjusting the bonding position of the block 112, but the manufacturing process is complicated and the manufacturing cost increases. Furthermore, unlike the exterior box, since it cannot be folded after unpacking, there is a problem that the packing material 110 is put into the trash box as it is and is not easily recycled.

そこで、本出願人は、従来の梱包材１１０の問題点を解決するべく、図６〜９に示すような改良された従来の梱包材１２０を提案している。図６は梱包材１２０の構成を示す斜視図、図７は梱包材1２０の展開図、図８及び図９は被梱包物（回路基板１０１）を保持した状態で梱包材１２０を外装箱１００に収納する手順を示す図である。 Therefore, the present applicant has proposed an improved conventional packaging material 120 as shown in FIGS. 6 to 9 in order to solve the problems of the conventional packaging material 110. 6 is a perspective view showing the configuration of the packing material 120, FIG. 7 is a development view of the packing material 120, and FIGS. 8 and 9 are drawings showing the packing material 120 in the outer box 100 while holding an object to be packed (circuit board 101). It is a figure which shows the procedure to store.

この梱包材１２０は、１枚の段ボールを折り曲げて形成され、図６、図８及び図９に示すように、正面視で略Ｈ状の断面を有している。図７は、矢印Ａ方向（裏側）から見た展開図であり、実線は完全切断線、太い破線は表側からの半切断線（山折線）、細い破線は裏側からの半切断線（谷折線）を表す。まず、ベース部１２１に対して、谷折線１２１ａに沿って第１側壁１２２を略垂直となるように折り曲げる。次に、山折線１２２ａに沿って第２側壁１２３を第１側壁１２２とほぼ重なるように折り曲げる。さらに、山折線１２３ａに沿って第３側壁１２４を第２側壁１２３とほぼ重なるように第１側壁１２２側に折り曲げる。反対側の各側壁についても同様に折り曲げる。そうすると、図６、図８及び図９に示すように、正面断面が略Ｈ状の梱包材１２０が完成する。なお、第１側壁１２２の一方の端部は第３側壁１２４よりも内側に位置し、後述するスリット１２６に回路基板１０１を差し込む際のストッパ１２５として機能する。 The packaging material 120 is formed by bending a single cardboard and has a substantially H-shaped cross section when viewed from the front, as shown in FIGS. FIG. 7 is a development view seen from the direction of arrow A (back side), where the solid line is a complete cut line, the thick broken line is a half cut line (mountain fold line) from the front side, and the thin broken line is a half cut line (valley fold line from the back side) ). First, the first side wall 122 is bent with respect to the base portion 121 along the valley fold line 121a so as to be substantially vertical. Next, the second side wall 123 is bent along the mountain fold line 122 a so as to substantially overlap the first side wall 122. Further, the third side wall 124 is bent toward the first side wall 122 so as to substantially overlap the second side wall 123 along the mountain fold line 123a. The other side wall is bent in the same manner. Then, as shown in FIGS. 6, 8, and 9, the packaging material 120 having a substantially H-shaped front section is completed. One end of the first side wall 122 is located on the inner side of the third side wall 124 and functions as a stopper 125 when the circuit board 101 is inserted into a slit 126 described later.

図６、図８及び図９からわかるように、第１側壁１２２の中央部付近の上端面１２２ｂは、ベース１２１の上面（又は谷折線１２１ａ）よりも上方に突出しており、第３側壁１２４の下端面１２４ａに対向している。高さ方向（図７の左右方向）において、第１側壁１２２の高さ（谷折線１２２ａから第１側壁１２２の中央部付近の上端面１２２ｂまでの寸法）をＨ１、第２側壁１２３の高さ（山折線１２２ａから山折線１２３ａまでの寸法）をＨ２、第３側壁１２４の高さ（山折線１２３ａから第３側壁１２４の下端面１２４ａまでの寸法）をＨ３とすると、第１側壁１２２の上端面１２２ｂと第３側壁１２４の下端面１２４ａの間に形成されるスリット１２６の幅Ｓｔは、Ｓｔ＝Ｈ２−（Ｈ１＋Ｈ３）で表される。これら第１側壁１２２、第２側壁１２３及び第３側壁１２４の寸法を適宜選択することにより、回路基板１０１の厚みとほぼ同じ幅Ｓｔのスリット１２６を形成することができる。 As can be seen from FIGS. 6, 8, and 9, the upper end surface 122 b near the center of the first side wall 122 protrudes above the upper surface (or valley fold line 121 a) of the base 121, It faces the lower end surface 124a. In the height direction (left-right direction in FIG. 7), the height of the first side wall 122 (the dimension from the valley fold line 122a to the upper end surface 122b near the center of the first side wall 122) is H1, and the height of the second side wall 123 Assuming that (the dimension from the mountain fold line 122a to the mountain fold line 123a) is H2, and the height of the third side wall 124 (the dimension from the mountain fold line 123a to the lower end surface 124a of the third side wall 124) is H3, The width St of the slit 126 formed between the end surface 122b and the lower end surface 124a of the third side wall 124 is represented by St = H2- (H1 + H3). By appropriately selecting the dimensions of the first side wall 122, the second side wall 123, and the third side wall 124, it is possible to form the slit 126 having a width St substantially the same as the thickness of the circuit board 101.

梱包材１２０を用いて回路基板１０１を外装箱１００の内部に収納する場合、図６に示すように、ストッパ１２５とは反対側からスリット１２６と平行に回路基板１０１をスリット１２６に挿入する。その際、図８（ａ）に示すように、回路基板１０１がベース部１２１と平行になるように、左右両側の側壁１２２〜１２４の中央部を２本の指で挟む。そして、その状態のまま、回路基板１０１を保持した梱包材１２０を外装箱１００の内部に収納する。 When the circuit board 101 is stored in the exterior box 100 using the packing material 120, the circuit board 101 is inserted into the slit 126 in parallel with the slit 126 from the side opposite to the stopper 125, as shown in FIG. 6. At this time, as shown in FIG. 8A, the center portions of the left and right side walls 122 to 124 are sandwiched between two fingers so that the circuit board 101 is parallel to the base portion 121. And the packaging material 120 holding the circuit board 101 is accommodated in the exterior box 100 in that state.

特開平０８−１９８３７８号公報Japanese Patent Application Laid-Open No. 08-198378

この梱包材１２０は、ベース部１２１が底部ではなく、高さ方向の中央付近に設けられているので、例えば左右両側の側壁１２２〜１２４の上端部付近を２本の指で挟むと、側壁１２２〜１２４が内側に倒れ込んでしまう。そのため、図８（ａ）に示すように、左右両側の側壁１２２〜１２４の中央部を２本の指で挟まなければならない。そうすると、図８（ｂ）に示すように、指が外装箱１００の蓋や側壁と干渉するため、少しずつ指をずらさなければならず、作業性があまりよくない。このことは、指の代わりに専用の梱包機械を用いて連続的に作業する場合であっても解決されない。また、取り扱い説明書やその他の付属品などを予め外装箱の底面に載置しておかなければならず、取り扱い説明書などの位置がずれていると、梱包材１２０の側壁１２２〜１２４の下端部と干渉する虞があり、その場合には梱包作業をやり直さなければならなくなる。 In the packing material 120, the base portion 121 is provided not near the bottom portion but near the center in the height direction. For example, when the vicinity of the upper end portions of the left and right side walls 122 to 124 is sandwiched between two fingers, the side wall 122 is provided. ~ 124 falls inward. Therefore, as shown to Fig.8 (a), you have to pinch | interpose the center part of the side walls 122-124 of right and left both sides with two fingers. Then, as shown in FIG. 8B, since the finger interferes with the lid and the side wall of the outer box 100, the finger must be shifted little by little, and workability is not so good. This is not solved even when working continuously using a dedicated packing machine instead of fingers. Further, an instruction manual or other accessories must be placed on the bottom surface of the outer box in advance, and if the position of the instruction manual is shifted, the lower ends of the side walls 122 to 124 of the packing material 120 are shifted. There is a risk of interfering with the parts, and in that case, the packing operation must be performed again.

本発明は、上記従来例の問題を解決するためになされたものであり、段ボールを所定形状に打ち抜き、さらに所定形状に折り曲げて形成される梱包材において、容易に板材の厚みに応じた幅の狭いスリット状の保持部を形成することができ、且つ、回路基板などの被梱包物を安定した状態で保持することができ、外装箱に容易に収納することが可能な梱包材を提供することを目的とする。 The present invention has been made in order to solve the above-described problems of the conventional example. In a packaging material formed by punching a cardboard into a predetermined shape and bending the cardboard into a predetermined shape, the width easily corresponds to the thickness of the plate material. To provide a packing material that can form a narrow slit-shaped holding portion, can hold an object to be packed such as a circuit board in a stable state, and can be easily stored in an outer box. With the goal.

上記目的を達成するため、発明に係る梱包材は、段ボールを所定形状に打ち抜き、さらに所定形状に折り曲げて形成される梱包材であって、
板状の被梱包物の少なくとも一辺を、段ボールを少なくとも１回折り重ねて形成された側壁部で係合保持するように、前記側壁部の折り重ねられた部分のそれぞれに、前記被梱包物の厚み方向において異なる位置に略矩形のスリットが形成されており、前記それぞれのスリットの短尺方向の寸法は、前記被梱包物の厚みより大きく、前記段ボールを折り重ねたときに前記それぞれのスリットは、短尺方向に一部重複し、前記重複部分の寸法が、前記被梱包物の厚みにほぼ等しくなるように構成されていることを特徴とする。
In order to achieve the above object, a packaging material according to the invention is a packaging material formed by punching cardboard into a predetermined shape and further bending it into a predetermined shape,
At least one side of the plate-shaped package is engaged with each of the folded portions of the side wall portion so that the side wall portion formed by folding the corrugated cardboard at least once is folded. A substantially rectangular slit is formed at a different position in the thickness direction, the dimension in the short direction of each of the slits is larger than the thickness of the article to be packed, and each of the slits when the cardboard is folded , It is characterized in that it is partially overlapped in the short direction, and the dimension of the overlapped part is substantially equal to the thickness of the packaged item.

また、発明に係る梱包材は、１枚の段ボールを所定形状に打ち抜き、さらに所定形状に折り曲げて形成される梱包材であって、
板状の被梱包物を保持した状態において、前記被梱包物と略平行となるベース部と、前記ベース部に対して略垂直であって、前記被梱包物を係合保持する、互いに対抗する１組の側壁部とを備え、
前記１組の側壁部はそれぞれ前記段ボールを少なくとも１回折り重ねて形成され、折り重ねられた部分には、それぞれ前記ベース部に対して略垂直な方向において異なる位置に略矩形のスリットが形成されており、前記ベース部に対して略垂直な方向における前記スリットの重複部分の寸法が、前記被梱包物の厚みにほぼ等しくなるように構成されていることを特徴とする。 Further, the packaging material according to the invention is a packaging material formed by punching one cardboard into a predetermined shape and further bending it into a predetermined shape,
In a state where the plate-shaped packaged object is held, a base part that is substantially parallel to the packaged object, and a substantially perpendicular to the base part that engages and holds the packaged object, which are opposed to each other. A set of side walls,
Each of the pair of side wall portions is formed by folding the corrugated cardboard at least once, and substantially rectangular slits are formed in the folded portions at different positions in a direction substantially perpendicular to the base portion. The dimension of the overlapping portion of the slit in a direction substantially perpendicular to the base portion is configured to be substantially equal to the thickness of the packaged object.

前記ベース部は、第１方向において、前記被梱包物と略等しい幅を有し、前記第１方向に直交する第２方向における前記スリットの長さは、同方向における前記被梱包物の長さに略等しいことが好ましい。 The base portion has a width substantially equal to the packaged object in the first direction, and the length of the slit in the second direction orthogonal to the first direction is the length of the packaged object in the same direction. Is preferably approximately equal to

前記１組の側壁部は、それぞれ
前記第１方向における前記ベース部の両端部に位置し、前記第１方向に直交する第２方向に平行な第１折り曲げ線に沿って前記ベース部に対して略垂直に折り曲げられ、前記第１方向において第１所定寸法を有する第１側壁と、
前記第１方向における前記第１側壁の前記ベース部とは反対側の端部に位置し、前記第２方向に平行な第２折り曲げ線に沿って前記第１側壁に対して略垂直に折り曲げられ、前記第１方向において前記段ボールの厚みとほぼ等しい第２所定寸法を有するスペーサ部と、
前記第１方向における前記スペーサ部の前記第１側壁とは反対側の端部に位置し、前記第２方向に平行な第３折り曲げ線に沿って前記第１側壁に対して略平行に折り曲げられ、前記第１方向において前記第１所定寸法と略等しい寸法を有する第２側壁と、
前記第１方向における前記第２側壁の前記スペーサ部とは反対側の端部に位置し、前記第２方向に平行な第４折り曲げ線に沿って前記第１側壁に対して略平行に折り曲げられ、前記第１側壁と前記第２側壁の間に挟持され、前記第１の方向において前記第１所定寸法と略等しい寸法を有する第３側壁とを備え、
前記スリットは、それぞれ前記第２側壁及び前記第３側壁に設けられていることが好ましい。 The pair of side wall portions are respectively located at both ends of the base portion in the first direction, and with respect to the base portion along a first fold line parallel to a second direction orthogonal to the first direction. A first side wall bent substantially vertically and having a first predetermined dimension in the first direction;
The first side wall in the first direction is located at the end of the first side wall opposite to the base portion, and is bent substantially perpendicularly to the first side wall along a second fold line parallel to the second direction. A spacer portion having a second predetermined dimension substantially equal to the thickness of the cardboard in the first direction;
The spacer portion in the first direction is located at the end opposite to the first side wall and is bent substantially parallel to the first side wall along a third fold line parallel to the second direction. A second side wall having a dimension substantially equal to the first predetermined dimension in the first direction;
The second side wall in the first direction is located at the end of the second side opposite to the spacer portion, and is bent substantially parallel to the first side wall along a fourth fold line parallel to the second direction. A third side wall sandwiched between the first side wall and the second side wall and having a dimension substantially equal to the first predetermined dimension in the first direction,
The slits are preferably provided in the second side wall and the third side wall, respectively.

前記第１方向において、前記第２側壁には、前記第４折り曲げ線を基準として前記第３側壁とは反対側に前記第４折り曲げ線から第３所定寸法だけ離れた位置に、前記第１方向における第５所定寸法、前記第２方向における前記被梱包物の長さとほぼ同じ第６所定寸法を有する略矩形の第１スリットが形成されており、
前記第１方向において、前記第３側壁には、前記第４折り曲げ線を基準として前記第２側壁とは反対側に前記第４折り曲げ線から第４所定寸法だけ離れた位置に、前記第１スリットと略等しい寸法を有する略矩形の第２スリットが形成されており、
前記第２側壁と前記第３側壁を折り重ねた状態で、前記第１方向における前記第１スリットと前記第２スリットの重複する部分の寸法が前記被梱包物の厚みとほぼ等しいことが好ましい。 In the first direction, the second side wall has a first predetermined direction away from the fourth fold line on a side opposite to the third side wall with respect to the fourth fold line. A substantially rectangular first slit having a sixth predetermined dimension and a sixth predetermined dimension substantially the same as the length of the packaged object in the second direction is formed,
In the first direction, the first slit is formed on the third side wall at a position away from the fourth bend line by a fourth predetermined dimension on the side opposite to the second side wall with respect to the fourth bend line. A substantially rectangular second slit having substantially the same dimensions as
In a state where the second side wall and the third side wall are folded, it is preferable that the dimension of the overlapping portion of the first slit and the second slit in the first direction is substantially equal to the thickness of the packaged object.

上記構成によれば、外装箱に梱包材を収納する際、ベース部が外装箱の底面側に位置し、被梱包物とベース部と１組の側壁で略四角形の断面を構成するので、１組の側壁部の上端部を２本の指で挟持したとしても、１組の側壁部は内側に倒れ込むことはない。そのため、被梱包物を梱包材で安定した状態で保持したまま、外装箱に収納することができる。さらに、被梱包物を保持した状態で梱包材を外装箱の内部に収納する際、指を少しずつずらす必要がなくなり、作業性が向上する。さらに、側壁部に形成されるスリットの位置をベース部に垂直な方向にずらすことによって、例えば段ボールの厚みよりも狭い所望する幅を有するスリットを簡単に形成することができるので、様々な厚みの板状の被梱包物を梱包することができる。 According to the above configuration, when the packaging material is stored in the outer box, the base portion is positioned on the bottom surface side of the outer box, and the package object, the base portion, and the pair of side walls constitute a substantially rectangular cross section. Even if the upper ends of the pair of side wall portions are sandwiched between two fingers, the one set of side wall portions does not fall inward. Therefore, it is possible to store the packaged item in the exterior box while being held in a stable state by the packing material. Furthermore, when the packing material is stored inside the outer box while holding the packaged item, it is not necessary to move the finger little by little, and workability is improved. Furthermore, by shifting the position of the slit formed in the side wall portion in a direction perpendicular to the base portion, for example, a slit having a desired width narrower than the thickness of the cardboard can be easily formed, so various thicknesses can be formed. A plate-shaped article can be packed.

本発明の一実施形態に係る梱包材の構成を示す斜視図。The perspective view which shows the structure of the packaging material which concerns on one Embodiment of this invention. 上記実施形態に係る梱包材の展開図。The expanded view of the packing material which concerns on the said embodiment. 上記実施形態に係る梱包材を外装箱に収納する手順を示す図。The figure which shows the procedure which accommodates the packing material which concerns on the said embodiment in an exterior box. 上記実施形態に係る梱包材を外装箱に収納する手順の続きを示す図。The figure which shows the continuation of the procedure which accommodates the packing material which concerns on the said embodiment in an exterior box. 最も基本的な従来の梱包材の構成を示す正面断面図。Front sectional drawing which shows the structure of the most basic conventional packing material. 改良された従来の梱包材の構成を示す斜視図。The perspective view which shows the structure of the conventional packaging material improved. 改良された従来の梱包材の展開図。The developed view of the improved conventional packaging material. 改良された従来の梱包材を外装箱の収納する手順を示す図。The figure which shows the procedure which accommodates the improved conventional packing material in an exterior box. 改良された従来の梱包材を外装箱に収納する手順の続きを示す図。The figure which shows the continuation of the procedure which accommodates the improved conventional packing material in an exterior box.

本発明の一実施形態に係る梱包材について、図１〜図４を参照しつつ説明する。図１は本実施形態に係る梱包材１の構成を示す斜視図、図２は梱包材1の展開図、図３及び図４は被梱包物（回路基板１０１）を保持した状態で梱包材１を外装箱１００に収納する手順を示す図である。 A packaging material according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing a configuration of a packaging material 1 according to the present embodiment, FIG. 2 is a development view of the packaging material 1, and FIGS. 3 and 4 are packaging materials 1 in a state where an object to be packed (circuit board 101) is held. It is a figure which shows the procedure which accommodates in the exterior box.

本実施形態に係る梱包材１は、１枚の段ボールを所定形状に打ち抜き、さらに所定形状に折り曲げて形成される梱包材であって、略矩形板状のベース部１１と、ベース部１１に対して略垂直な互いに対抗する１組の側壁部１２を有している。この実施形態では、側壁部１２は段ボールを２回折り重ねて形成された３枚重ね構造である。図２に示すように、板状の被梱包物である回路基板１０１を保持した状態において、ベース部１１は回路基板１０１と略平行となる。１組の側壁部１２は、ベース部１１に対して略垂直な状態において回路基板１０１の両端部と係合し、回路基板１０１を略水平に保持する。 The packaging material 1 according to the present embodiment is a packaging material formed by punching a single cardboard into a predetermined shape, and further bending the cardboard into a predetermined shape. And a pair of side wall portions 12 that are substantially perpendicular to each other. In this embodiment, the side wall portion 12 has a three-layer structure formed by corrugating cardboards twice. As shown in FIG. 2, the base portion 11 is substantially parallel to the circuit board 101 in a state where the circuit board 101, which is a plate-shaped packaged object, is held. The pair of side wall portions 12 engages with both end portions of the circuit board 101 in a state substantially perpendicular to the base portion 11, and holds the circuit board 101 substantially horizontally.

図２の展開図は、図１における矢印Ｂ方向（裏側）から見た状態を示し、実線は完全切断線、破線は裏側からの半切断線（谷折線））を示す。ベース部１１は、切断される段ボール片の中央部に位置し、第１方向（図中横方向）における寸法Ｗは、同方向における回路基板１０１の幅とほぼ同じである。１組の側壁部１２は、それぞれ第１方向においてベース部１１の両側に配置されており、それぞれ同じ方向（内側）に折り曲げられる第１側壁１３、スペーサ部１４、第２側壁１５及び第３側壁１６を備えている。 The development of FIG. 2 shows the state seen from the arrow B direction (back side) in FIG. 1, and a solid line shows a complete cut line and a broken line shows a half cut line (valley line) from the back side. The base portion 11 is located at the center of the corrugated cardboard piece to be cut, and the dimension W in the first direction (lateral direction in the figure) is substantially the same as the width of the circuit board 101 in the same direction. The pair of side wall portions 12 are respectively disposed on both sides of the base portion 11 in the first direction, and are each a first side wall 13, a spacer portion 14, a second side wall 15, and a third side wall that are bent in the same direction (inner side). 16 is provided.

第１側壁１３は、第１方向におけるベース部１１の両端部に位置し、第１方向に直交する第２方向（図中上下方向）に平行な第１折り曲げ線２１に沿ってベース部１１に対して略垂直に折り曲げられる。第１方向における第１側壁１３の寸法Ｈは、外装箱１００の内側の収納スペースの高さと略等しい第１所定寸法を有している。第１所定寸法は、段ボールの折り曲げ方向の内側を基準にする場合、段ボール厚みを考慮して外装箱１００の内側の収納スペースの高さよりも少し小さくする。スペーサ部１４は、段ボールの厚みを考慮したものであり、第１方向において段ボールの厚みとほぼ等しい第２所定寸法Ｔを有しており、第１方向における第１側壁１３のベース部１１とは反対側の端部に配置されている。スペーサ部１４は、第２方向に平行な第２折り曲げ線２２に沿って第１側壁１３に対して略垂直に折り曲げられ、ベース部１１と略平行となる。第２側壁１５は、第１方向におけるスペーサ部１４の第１側壁１３とは反対側の端部に位置し、第２方向に平行な第３折り曲げ線２３に沿って第１側壁１３に対して略平行に折り曲げられる。第２側壁１５は、第１方向において上記第１所定寸法Ｈと略等しい寸法Ｈ’を有している。第３側壁１６は、第１方向における第２側壁１５のスペーサ部１４とは反対側の端部に位置し、第２方向に平行な第４折り曲げ線２４に沿って第１側壁１３に対して略平行に折り曲げられ、第１側壁１３と第２側壁１５の間に挟持される。第３側壁１６は、第１方向において上記第１所定寸法Ｈと略等しい寸法Ｈ”を有している。 The first side wall 13 is located at both ends of the base portion 11 in the first direction, and extends along the first fold line 21 parallel to the second direction (vertical direction in the drawing) perpendicular to the first direction. On the other hand, it is bent substantially perpendicularly. The dimension H of the first side wall 13 in the first direction has a first predetermined dimension that is substantially equal to the height of the storage space inside the exterior box 100. The first predetermined dimension is set to be slightly smaller than the height of the storage space inside the outer box 100 in consideration of the thickness of the cardboard when the inner side in the cardboard folding direction is used as a reference. The spacer portion 14 takes into consideration the thickness of the cardboard, and has a second predetermined dimension T substantially equal to the thickness of the cardboard in the first direction. What is the base portion 11 of the first side wall 13 in the first direction? Arranged at the opposite end. The spacer portion 14 is bent substantially perpendicular to the first side wall 13 along a second fold line 22 parallel to the second direction, and becomes substantially parallel to the base portion 11. The second side wall 15 is located at the end of the spacer portion 14 on the opposite side of the first side wall 13 in the first direction, and is along the third fold line 23 parallel to the second direction with respect to the first side wall 13. It is bent almost in parallel. The second side wall 15 has a dimension H ′ substantially equal to the first predetermined dimension H in the first direction. The third side wall 16 is located at the end of the second side wall 15 opposite to the spacer part 14 in the first direction, and is along the fourth fold line 24 parallel to the second direction with respect to the first side wall 13. It is bent substantially in parallel and is sandwiched between the first side wall 13 and the second side wall 15. The third side wall 16 has a dimension H ″ substantially equal to the first predetermined dimension H in the first direction.

この梱包材１の組み立ては、図２において、両端部の第３側壁１６をそれぞれ第４折り曲げ線２４に沿って谷折りし、第２側壁１５に折り重ねる。次に、折り重ねられた第２側壁１５及び第３側壁１６を第３折り曲げ線２３に沿って谷折りする。そうすると、第３側壁１６がスペーサ部１４の上に略垂直な状態で位置する。その状態で、折り重ねられた第２側壁１５及び第３側壁１６を第２折り曲げ線２２に沿って谷折りする。そうすると、第２側壁１５及び第３側壁１６が第１側壁１３の上に折り重ねられる。最後に、３枚重ねに折り重ねられた第１側壁１３、第２側壁１５及び第３側壁１６を第１折り曲げ線２１に沿って谷折りする。このように段ボールを折り重ねて形成された１組の側壁部１２は段ボール３枚分の厚みを有しているため、図１に示すように折り曲げた状態からそれ以上内側に倒れ込んでしまうことはなく、１組の側壁部１２はそれぞれベース部１１に対して略垂直になる。 As shown in FIG. 2, the packaging material 1 is assembled by folding the third side walls 16 at both ends along the fourth fold line 24 and folding the third side walls 16 on the second side wall 15. Next, the folded second side wall 15 and third side wall 16 are valley-folded along the third fold line 23. Then, the third side wall 16 is positioned on the spacer portion 14 in a substantially vertical state. In this state, the folded second side wall 15 and third side wall 16 are valley-folded along the second fold line 22. Then, the second side wall 15 and the third side wall 16 are folded on the first side wall 13. Finally, the first side wall 13, the second side wall 15, and the third side wall 16 that are folded in three layers are valley-folded along the first fold line 21. The pair of side wall portions 12 formed by folding cardboard in this way has a thickness equivalent to three cardboards, so that it does not fall further inward from the folded state as shown in FIG. The pair of side wall portions 12 is substantially perpendicular to the base portion 11.

ベース部１１に対して図中左右方向にそれぞれ配置された２つの第２側壁１５には、それぞれ第２方向に細長い略矩形の第１スリット１７が形成され、同様に２つの第３側壁１６には第２方向に細長い略矩形の第２スリット１８が形成されている。この実施形態では、２つの第１スリット１７及び２つの第２スリット１８はそれぞれ同一寸法であり、また第１スリット１７と第２スリット１８もそれぞれ同一寸法である。第１方向における第１スリット１７及び第２スリット１８の幅Ｓｗ（第５所定寸法）は、例えば段ボールの厚みに応じて開口可能な最小寸法又はその最小寸法に対して多少余裕を持たせた寸法である。一方、第２方向における第１スリット１７及び第２スリット１８の長さＬ（第６所定寸法）は、同方向における被梱包物である回路基板１０１の長さとほぼ同じである。但し、被梱包物である回路基板１０１が平面視で四角形ではなく、切り欠きなどが形成され左右側辺の長さが異なる場合、回路基板１０１の形状に合わせて、第２方向における左右の第１スリット１７と第２スリット１８の寸法を変えることはいうまでもない。 The two second side walls 15 respectively arranged in the left-right direction in the drawing with respect to the base portion 11 are formed with substantially rectangular first slits 17 elongated in the second direction, and similarly in the two third side walls 16. Is formed with a substantially rectangular second slit 18 elongated in the second direction. In this embodiment, the two first slits 17 and the two second slits 18 have the same dimensions, and the first slit 17 and the second slit 18 also have the same dimensions. The width Sw (fifth predetermined dimension) of the first slit 17 and the second slit 18 in the first direction is, for example, the minimum dimension that can be opened according to the thickness of the cardboard, or a dimension that has some allowance for the minimum dimension. It is. On the other hand, the length L (sixth predetermined dimension) of the first slit 17 and the second slit 18 in the second direction is substantially the same as the length of the circuit board 101 that is an object to be packed in the same direction. However, when the circuit board 101 which is an object to be packaged is not a quadrangle in a plan view and a notch or the like is formed and the lengths of the left and right sides are different, the left and right second sides in the second direction are matched to the shape of the circuit board 101. Needless to say, the dimensions of the first slit 17 and the second slit 18 are changed.

また、第１方向において、第２側壁１５の第１スリット１７は、第４折り曲げ線２４を基準として第３側壁１６とは反対側に第４折り曲げ線２４から第３所定寸法Ｔ１だけ離れた位置に形成されている。同様に、第３側壁１６の第２スリット１８は、第４折り曲げ線２４を基準として第２側壁１５とは反対側に第４折り曲げ線２４から第４所定寸法Ｔ２だけ離れた位置に形成されている。ここで、第３所定寸法Ｔ１と第４所定寸法Ｔ２は異なる値であり、第２側壁１５と第３側壁１６を折り重ねた状態で、第１方向における第１スリット１７と第２スリット１８の重複部分の寸法が被梱包物である回路基板１０１の厚みとほぼ等しくなるように設定されている。回路基板１０１の厚みをｔとすると、ｔ≒Ｓｗ−|（Ｔ１−Ｔ２）|となる。 Further, in the first direction, the first slit 17 of the second side wall 15 is a position away from the fourth fold line 24 by the third predetermined dimension T1 on the side opposite to the third side wall 16 with respect to the fourth fold line 24. Is formed. Similarly, the second slit 18 of the third side wall 16 is formed at a position away from the fourth fold line 24 by a fourth predetermined dimension T2 on the side opposite to the second side wall 15 with respect to the fourth fold line 24. Yes. Here, the third predetermined dimension T1 and the fourth predetermined dimension T2 are different values, and the first slit 17 and the second slit 18 in the first direction are folded in a state where the second side wall 15 and the third side wall 16 are folded. The dimension of the overlapping portion is set so as to be approximately equal to the thickness of the circuit board 101 which is a packaged object. When the thickness of the circuit board 101 is t, t≈Sw− | (T1−T2) |.

次に、この梱包材１を用いて回路基板１０１を外装箱１００に梱包する手順について説明する。図１に示すように、左右両側の第１側壁１３、第２側壁１５及び第３側壁１６を折り重ねて側壁部１２をベース部１１に対して略垂直となるように形成する。次に、図３（ａ）に示すように、左右いずれか一方又は両方の側壁部１２を外側に拡げて、回路基板１０１の側部１０１ａを一方の側壁部１２の第１スリット１７及び第２スリット１８に挿入する。第１スリット１７及び第２スリット１８は、ベース部１１に対して略垂直な方向における位置がずれているので、第１スリット１７と第２スリット１８の重複部分の幅は、上記のように回路基板１０１の厚みと略等しくなり、回路基板１０１の側部を係合保持することができる。その際、スリットが形成されていない第１側壁１３が回路基板１０１の側部１０１ａのストッパとして機能する。回路基板１０１の反対側の側部１０１ｂを他方の側壁部１２の第１スリット１７及び第２スリット１８に挿入することにより、図３（ｂ）に示すように、１組の側壁部１２の間に回路基板１０１を係合保持することができる。また、梱包材１で回路基板１０１を係合保持した状態では、回路基板１０１とベース部１１と１組の側壁部１２で略四角形の断面を構成し、さらに１組の側壁部１２をそれぞれ構成する左右の第２側壁１５及び第３側壁１６がそれぞれベース部１１の上面と当接している。そのため、１組の側壁部１２の上端部を２本の指で挟持したとしても、側壁部１２が内側に倒れ込むことはない。 Next, a procedure for packing the circuit board 101 into the outer box 100 using the packing material 1 will be described. As shown in FIG. 1, the first side wall 13, the second side wall 15, and the third side wall 16 on both the left and right sides are folded so that the side wall portion 12 is substantially perpendicular to the base portion 11. Next, as shown in FIG. 3A, one or both of the left and right side wall portions 12 are expanded outward, and the side portion 101a of the circuit board 101 is moved to the first slit 17 and the second side wall portion 12 of the one side wall portion 12. Insert into slit 18. Since the positions of the first slit 17 and the second slit 18 are shifted in a direction substantially perpendicular to the base portion 11, the width of the overlapping portion of the first slit 17 and the second slit 18 is the circuit as described above. It becomes substantially equal to the thickness of the substrate 101, and the side portion of the circuit substrate 101 can be engaged and held. At this time, the first side wall 13 in which no slit is formed functions as a stopper for the side portion 101 a of the circuit board 101. By inserting the opposite side portion 101b of the circuit board 101 into the first slit 17 and the second slit 18 of the other side wall portion 12, as shown in FIG. The circuit board 101 can be engaged and held. Further, in a state where the circuit board 101 is engaged and held by the packing material 1, the circuit board 101, the base portion 11, and the pair of side wall portions 12 constitute a substantially square cross section, and further, the one set of side wall portions 12 constitutes each other. The left and right second side walls 15 and the third side wall 16 are in contact with the upper surface of the base portion 11. Therefore, even if the upper end portion of the pair of side wall portions 12 is sandwiched between two fingers, the side wall portion 12 does not fall inward.

このように、１組の側壁部１２の上端部を２本の指で挟持した状態で、図４（ａ）に示すように、外装箱１００の内部に回路基板１０１を保持した梱包材１を挿入することができる。その際、外装箱１００の蓋と指が干渉しないので、指を少しずつずらす必要が無くなり、梱包作業をスムーズに行うことができる。さらに、梱包材１を外装箱１００の内部に収納した状態で、ベース部１１が外装箱１００の底面と対向し、ほぼ全面で接触しているので、外装箱１００の底面を補強する効果が得られる。さらに、取り扱い説明書１０２やその他の付属品などを予めベース部１１上に載置しておくことができ、梱包作業をスムーズに行うことができる。 As shown in FIG. 4A, the packaging material 1 holding the circuit board 101 inside the exterior box 100 is held in a state where the upper ends of the pair of side wall portions 12 are sandwiched between two fingers in this way. Can be inserted. At that time, since the lid of the outer packaging box 100 and the finger do not interfere with each other, it is not necessary to shift the finger little by little, and the packing operation can be performed smoothly. Furthermore, since the base portion 11 faces the bottom surface of the exterior box 100 and is in contact with almost the entire surface in a state where the packaging material 1 is housed in the exterior box 100, the effect of reinforcing the bottom surface of the exterior box 100 is obtained. It is done. Furthermore, the instruction manual 102 and other accessories can be placed on the base portion 11 in advance, and the packing operation can be performed smoothly.

なお、本発明は、上記実施形態の構成に限定されるものではなく、様々な変形が可能である。上記実施形態では、第３側壁１６で回路基板１０１の下面を支持し、第２側壁１５で回路基板１０１の上面を支持するように構成しているが、第２側壁１５で回路基板１０１の下面を支持し、第３側壁１６で回路基板１０１の上面を支持するように構成してもよい。後者の場合、平面視で第２側壁１５と重複する範囲にも回路基板１０１の上面の側端部付近に導電体パターンなどを配置することができ、回路基板１０１のデッドスペースを小さくすることができる。また、回路基板１０１の構造や導電体パターンなどに応じて、一方の側部１０１ａでは、第３側壁１６で回路基板１０１の下面を支持し、第２側壁１５で回路基板１０１の上面を支持し、他方の側部１０１ｂでは、第２側壁１５で回路基板１０１の下面を支持し、第３側壁１６で回路基板１０１の上面を支持するように構成してもよい。さらに、上記実施形態では、ベース部１１と１組の側壁部１２を一体化した例を示したが、上記ベース部１１も必ずしも必要ではなく、梱包材１が２つ以上の片に分離されていてもよい。例えば、板状の被梱包物の一辺を、段ボールを少なくとも１回折り重ねて形成された１組の側壁部で係合保持するように、折り重ねられた部分には、それぞれ被梱包物の板状部に対して略垂直な方向において異なる位置に略矩形のスリットが形成されており、同方向における前記スリットの重複部分の寸法が、前記被梱包物の厚みにほぼ等しくなるように構成されていればよく、折り重ね回数は特に限定されない。それによって、図５に示す従来の梱包材１１０と同様の梱包材を、接着剤を用いて段ボール片を貼り合わせることなく実現することができる。また、スリットが形成されていない上記第１側壁１３も、必ずしも必要ではない。 In addition, this invention is not limited to the structure of the said embodiment, A various deformation | transformation is possible. In the above embodiment, the third side wall 16 supports the lower surface of the circuit board 101 and the second side wall 15 supports the upper surface of the circuit board 101. However, the second side wall 15 supports the lower surface of the circuit board 101. The upper surface of the circuit board 101 may be supported by the third side wall 16. In the latter case, a conductor pattern or the like can be disposed in the vicinity of the side end portion of the upper surface of the circuit board 101 even in a range overlapping with the second side wall 15 in plan view, and the dead space of the circuit board 101 can be reduced. it can. Further, according to the structure of the circuit board 101, the conductor pattern, and the like, on one side 101a, the third side wall 16 supports the lower surface of the circuit board 101, and the second side wall 15 supports the upper surface of the circuit board 101. The other side portion 101 b may be configured such that the lower surface of the circuit board 101 is supported by the second side wall 15 and the upper surface of the circuit board 101 is supported by the third side wall 16. Furthermore, in the said embodiment, although the example which integrated the base part 11 and 1 set of side wall parts 12 was shown, the said base part 11 is not necessarily required, but the packing material 1 is isolate | separated into two or more pieces. May be. For example, each side of a plate-shaped packaged object is folded and folded so that a pair of side walls formed by corrugated cardboard is folded at least once. A substantially rectangular slit is formed at a different position in a direction substantially perpendicular to the shape part, and the dimension of the overlapping portion of the slit in the same direction is substantially equal to the thickness of the packaged object. The number of times of folding is not particularly limited. Thereby, a packaging material similar to the conventional packaging material 110 shown in FIG. 5 can be realized without bonding the cardboard pieces using an adhesive. Further, the first side wall 13 in which no slit is formed is not necessarily required.

１梱包材
１１ベース部
１２側壁部
１３第１側壁
１４スペーサ部
１５第２側壁
１６第３側壁
１７第１スリット
１８第２スリット
２１第１折り曲げ線
２２第２折り曲げ線
２３第３折り曲げ線
２４第４折り曲げ線
１００外装箱
１０１回路基板（板状の被梱包物）
１０２取り扱い説明書
Ｗ第１方向におけるベース部の幅（被梱包物の幅）
Ｈ第１側壁の寸法（第１所定寸法、外装箱収納スペースの高さと略等しい寸法）
Ｔ第１方向におけるスペーサ部の寸法（第２所定寸法、段ボールの厚みと略等しい寸法）
Ｈ’ 第１方向における第２側壁の寸法（第１所定寸法に略等しい寸法）
Ｈ” 第１方向における第３側壁の寸法（第１所定寸法に略等しい寸法）
Ｔ１第４折り曲げ線から第１スリットまでの距離（第３所定寸法）
Ｔ２第４折り曲げ線から第２スリットまでの距離（第４所定寸法）
Ｓｗ第１方向における第１及び第２スリットの幅（第５所定寸法）
Ｌ第２方向における第１及び第２スリットの長さ（第６所定寸法：被梱包物の長さ）
ｔ回路基板（被梱包物）の厚み DESCRIPTION OF SYMBOLS 1 Packing material 11 Base part 12 Side wall part 13 1st side wall 14 Spacer part 15 2nd side wall 16 3rd side wall 17 1st slit 18 2nd slit 21 1st fold line 22 2nd fold line 23 3rd fold line 24 4th Folding line 100 Outer box 101 Circuit board (plate-like packaged item)
102 Instruction Manual W Width of the base part in the first direction (width of the item to be packed)
H Dimension of first side wall (first predetermined dimension, dimension substantially equal to height of outer box storage space)
T dimension of the spacer portion in the first direction (second predetermined dimension, dimension substantially equal to the thickness of the cardboard)
H 'Dimensions of the second side wall in the first direction (dimensions substantially equal to the first predetermined dimension)
H "Dimension of third side wall in first direction (dimension substantially equal to first predetermined dimension)
T1 Distance from the fourth fold line to the first slit (third predetermined dimension)
T2 Distance from the fourth fold line to the second slit (fourth predetermined dimension)
Sw Width of first and second slits in first direction (fifth predetermined dimension)
L Length of the first and second slits in the second direction (sixth predetermined dimension: length of the packaged item)
t Circuit board (packaged) thickness

Claims

段ボールを所定形状に打ち抜き、さらに所定形状に折り曲げて形成される梱包材であって、
板状の被梱包物の少なくとも一辺を、段ボールを少なくとも１回折り重ねて形成された側壁部で係合保持するように、前記側壁部の折り重ねられた部分のそれぞれに、前記被梱包物の厚み方向において異なる位置に略矩形のスリットが形成されており、前記それぞれのスリットの短尺方向の寸法は、前記被梱包物の厚みより大きく、前記段ボールを折り重ねたときに前記それぞれのスリットは、短尺方向に一部重複し、前記重複部分の寸法が、前記被梱包物の厚みにほぼ等しくなるように構成されていることを特徴とする梱包材。 A packaging material formed by punching corrugated cardboard into a predetermined shape and bending it into a predetermined shape,
At least one side of the plate-shaped package is engaged with each of the folded portions of the side wall portion so that the side wall portion formed by folding the corrugated cardboard at least once is folded. A substantially rectangular slit is formed at a different position in the thickness direction, the dimension in the short direction of each of the slits is larger than the thickness of the article to be packed, and each of the slits when the cardboard is folded , A packaging material, wherein the packaging material is configured to partially overlap in a short length direction, and a dimension of the overlapping portion is substantially equal to a thickness of the packaged object.

１枚の段ボールを所定形状に打ち抜き、さらに所定形状に折り曲げて形成される梱包材であって、
板状の被梱包物を保持した状態において、前記被梱包物と略平行となるベース部と、前記ベース部に対して略垂直であって、前記被梱包物を係合保持する、互いに対抗する１組の側壁部とを備え、
前記１組の側壁部はそれぞれ前記段ボールを少なくとも１回折り重ねて形成され、折り重ねられた部分には、それぞれ前記ベース部に対して略垂直な方向において異なる位置に略矩形のスリットが形成されており、前記ベース部に対して略垂直な方向における前記スリットの重複部分の寸法が、前記被梱包物の厚みにほぼ等しくなるように構成されていることを特徴とする梱包材。 A packaging material formed by punching one cardboard into a predetermined shape and bending it into a predetermined shape,
In a state where the plate-shaped packaged object is held, a base part that is substantially parallel to the packaged object, and a substantially perpendicular to the base part that engages and holds the packaged object, which are opposed to each other. A set of side walls,
Each of the pair of side wall portions is formed by folding the corrugated cardboard at least once, and substantially rectangular slits are formed in the folded portions at different positions in a direction substantially perpendicular to the base portion. The packaging material is characterized in that the dimension of the overlapping portion of the slit in a direction substantially perpendicular to the base portion is substantially equal to the thickness of the article to be packed.

前記ベース部は、第１方向において、前記被梱包物と略等しい幅を有し、前記第１方向に直交する第２方向における前記スリットの長さは、同方向における前記被梱包物の長さに略等しいことを特徴とする請求項２に記載の梱包材。 The base portion has a width substantially equal to the packaged object in the first direction, and the length of the slit in the second direction orthogonal to the first direction is the length of the packaged object in the same direction. The packaging material according to claim 2, which is substantially equal to

前記１組の側壁部は、それぞれ
前記第１方向における前記ベース部の両端部に位置し、前記第１方向に直交する第２方向に平行な第１折り曲げ線に沿って前記ベース部に対して略垂直に折り曲げられ、前記第１方向において第１所定寸法を有する第１側壁と、
前記第１方向における前記第１側壁の前記ベース部とは反対側の端部に位置し、前記第２方向に平行な第２折り曲げ線に沿って前記第１側壁に対して略垂直に折り曲げられ、前記第１方向において前記段ボールの厚みとほぼ等しい第２所定寸法を有するスペーサ部と、
前記第１方向における前記スペーサ部の前記第１側壁とは反対側の端部に位置し、前記第２方向に平行な第３折り曲げ線に沿って前記第１側壁に対して略平行に折り曲げられ、前記第１方向において前記第１所定寸法と略等しい寸法を有する第２側壁と、
前記第１方向における前記第２側壁の前記スペーサ部とは反対側の端部に位置し、前記第２方向に平行な第４折り曲げ線に沿って前記第１側壁に対して略平行に折り曲げられ、前記第１側壁と前記第２側壁の間に挟持され、前記第１の方向において前記第１所定寸法と略等しい寸法を有する第３側壁とを備え、
前記スリットは、それぞれ前記第２側壁及び前記第３側壁に設けられていることを特徴とする請求項２又は請求項３に記載の梱包材。 The pair of side wall portions are respectively located at both ends of the base portion in the first direction, and with respect to the base portion along a first fold line parallel to a second direction orthogonal to the first direction. A first side wall bent substantially vertically and having a first predetermined dimension in the first direction;
The first side wall in the first direction is located at the end of the first side wall opposite to the base portion, and is bent substantially perpendicularly to the first side wall along a second fold line parallel to the second direction. A spacer portion having a second predetermined dimension substantially equal to the thickness of the cardboard in the first direction;
The spacer portion in the first direction is located at the end opposite to the first side wall and is bent substantially parallel to the first side wall along a third fold line parallel to the second direction. A second side wall having a dimension substantially equal to the first predetermined dimension in the first direction;
The second side wall in the first direction is located at the end of the second side opposite to the spacer portion, and is bent substantially parallel to the first side wall along a fourth fold line parallel to the second direction. A third side wall sandwiched between the first side wall and the second side wall and having a dimension substantially equal to the first predetermined dimension in the first direction,
The packing material according to claim 2 or 3, wherein the slits are respectively provided in the second side wall and the third side wall.

前記第１方向において、前記第２側壁には、前記第４折り曲げ線を基準として前記第３側壁とは反対側に前記第４折り曲げ線から第３所定寸法だけ離れた位置に、前記第１方向における第５所定寸法、前記第２方向における前記被梱包物の長さとほぼ同じ第６所定寸法を有する略矩形の第１スリットが形成されており、
前記第１方向において、前記第３側壁には、前記第４折り曲げ線を基準として前記第２側壁とは反対側に前記第４折り曲げ線から第４所定寸法だけ離れた位置に、前記第１スリットと略等しい寸法を有する略矩形の第２スリットが形成されており、
前記第２側壁と前記第３側壁を折り重ねた状態で、前記第１方向における前記第１スリットと前記第２スリットの重複する部分の寸法が前記被梱包物の厚みとほぼ等しいことを特徴とする請求項４に記載の梱包材。 In the first direction, the second side wall has a first predetermined direction away from the fourth fold line on a side opposite to the third side wall with respect to the fourth fold line. A substantially rectangular first slit having a sixth predetermined dimension and a sixth predetermined dimension substantially the same as the length of the packaged object in the second direction is formed,
In the first direction, the first slit is formed on the third side wall at a position away from the fourth bend line by a fourth predetermined dimension on the side opposite to the second side wall with respect to the fourth bend line. A substantially rectangular second slit having substantially the same dimensions as
In the state where the second side wall and the third side wall are folded, the dimension of the overlapping portion of the first slit and the second slit in the first direction is substantially equal to the thickness of the packaged item. The packaging material according to claim 4.