JPH0958661A - Corrugated fiberboard box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a corrugated fiberboard box to be freely folded and assembled and to prevent a bottom from dropping due to a heavy object received by overlaying flaps provided at an opening of an upper part and the bottom in three layers at the bottom and two layers at the upper part and bonding them with pieces of Velcro. SOLUTION: In a corrugated fiberboard box having openings at an upper part and a bottom, a plurality of movable closing faces (flaps) 7, 8, 11, 12 with pieces of Velcro placed for extending to the bottom opening form three layers at the time of assembly and extend across the rectangular opening for a single stage face. In addition, for a plurality of closing faces 5, 6, 9, 10 with pieces of Velcro placed for extending to the upper face opening, at least two or more laminated layers are formed at the time of assembly wherein the second stage face 5 and the third stage face 6 extend across a rectangular opening for a single stage face. Thus the pieces of Velcro placed on faces contacting each other of the second stage faces 5, 7 and the third stage faces 6, 8 extending fully across the upper and bottom openings enable a corrugated fiberboard box to resist against force when the boxes are stacked or a heavy object is put.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、上部と底部に開口
部を有し、積層する閉じ面にマジックテープを設置した
段ボール箱に関するもので、閉じ面にマジックテープを
使用したため折り畳み並びに組み立てが自在で、底部は
重量物を収容しても底抜けせず十分耐えられるよう三層
構造にしてあり、上部は少なくとも二層以上の構造を有
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrugated cardboard box having openings at the top and bottom and having a velcro tape on the closing surface to be stacked. Since the velcro tape is used on the closing surface, it can be folded and assembled. In addition, the bottom has a three-layer structure so that even if a heavy object is accommodated, the bottom does not slip out and can withstand sufficiently, and the top has a structure of at least two layers.

【０００２】[0002]

【従来の技術】従来の上下開口型段ボール箱は展開しや
すい反面、展開時並びに組み立て時の双方移行過程に難
点を持ち、段ボール箱自体で完結性を持つものではなか
った。そのため、内容物収容時には底部を固定するため
に閉じ面を接着、又はガムテープ、ステイプル等で補強
して、負荷が掛かっても底が抜けないようにしている。
また、上面開口部も同じような接合手段を取っていた。2. Description of the Related Art Conventional top-and-bottom opening corrugated cardboard boxes are easy to deploy, but have a difficulty in the transition process both during deployment and assembly, and the corrugated cardboard boxes themselves are not complete. Therefore, when the contents are stored, the closing surface is adhered to fix the bottom portion, or the bottom surface is prevented from coming off even if a load is applied by reinforcing the closing surface with gum tape, staples, or the like.
Further, the upper surface opening portion also employs a similar joining means.

【０００３】[0003]

【発明が解決しようとする課題】段ボール箱は使い捨て
が主流であったので、ライフサイクルが短く、それ程強
度的に考慮して作られていたとは言い難い。また組み立
て時に必ず接着剤やガムテープその他の補助用具が必要
であり、そのため展開時に段ボール自体が傷んでしま
い、再使用には差し支えるなどの問題が起きていた。ま
た再使用段ボール箱に蓋をする方法は、卍型に四方のフ
ラップを組むなどの手段によっていた。Since the corrugated cardboard box is mainly disposable, it has a short life cycle, and it is hard to say that it was made in consideration of its strength. In addition, adhesives, gum tape, and other auxiliary tools are always required at the time of assembly, so the corrugated cardboard itself is damaged at the time of unfolding, causing problems such as hindering reuse. In addition, the method of covering the reusable cardboard box is to assemble a four-sided flap into a swastika type.

【０００４】マジックテープをこれまでの上下開口型段
ボール箱構造に適応するには、マジックテープ自体が上
下の引き剥がし力に比較的弱く、高負荷の内容物重量に
耐えられない等の問題点があった。In order to apply the velcro tape to the conventional top-and-bottom opening type corrugated box structure, the velcro tape itself is relatively weak against the upper and lower peeling forces, and there is a problem that it cannot withstand the heavy load of contents. there were.

【０００５】[0005]

【課題を解決するための手段】上記の問題を解決するた
め、本発明は耐負荷構造に関わる一段当たりの閉じ面の
面積を四角形開口部一杯にまで広げ、マジックテープの
設定位置を工夫することで、負荷は第一段面では、直
接、第二段面の紙の引っ張り抵抗力、第二段面と第三段
面では梃の原理による紙の荷重抗力で置き換えるように
している。また、積み重ね対応型の場合、上部第一段面
縦幅どおしをｃ／２以上の長さに延長し、重複した中央
部にマジックテープを設置することにより、積み重ね時
の横ｃ方向への張り出しを防止している。In order to solve the above problems, the present invention is to devise the setting position of the magic tape by expanding the area of the closing surface per step related to the load bearing structure to the full size of the rectangular opening. Then, the load is directly replaced by the pulling resistance of the paper on the second step surface on the first step surface and the load drag force of the paper on the second step surface and the third step surface by the leverage principle. Also, in the case of stackable type, by extending the vertical width of the upper first step surface to a length of c / 2 or more and installing a magic tape in the overlapping center part, it can be moved in the horizontal c direction during stacking. To prevent overhang.

【０００６】閉じ面が積層するため、側面３及び４の上
下隣接線の高度修正により無理な面どおしの軋轢が起き
ないようにした。また、マジックテープは上下の引っ張
り力には弱く、横ずれの抵抗力が極めて強いため、その
特性を考慮した配置が必要であった。後記する配置によ
り、マジックテープでも従来の接着並びにガムテープ等
の固定手段と同等の強度を確保することができた。Since the closed surfaces are laminated, the heights of the adjacent lines of the side surfaces 3 and 4 are adjusted to prevent unreasonable friction between the surfaces. Further, since the velcro tape is weak in pulling force in the vertical direction and has extremely strong resistance to lateral displacement, it is necessary to arrange the velcro tape in consideration of its characteristics. By the arrangement described later, even with the velcro tape, it was possible to secure the same strength as the conventional adhesion and fixing means such as gum tape.

【０００７】[0007]

【発明の実施の形態】組み立ては、まず折り畳んだ状態
から側面ｃ寸法のいずれかの面を下にし、ａ寸法の面を
起こし開口部を四角形にした後、閉じ面の積層順に底部
を組み立て、底部を地面に置き据え、マジックテープが
よく着面しているか内側から押して確認し、内容物を入
れた後に上部の閉じ面を組み立てる。BEST MODE FOR CARRYING OUT THE INVENTION Assembling, first, from the folded state, one of the side surfaces c dimension is faced down, the a dimension surface is raised to make the opening square, and then the bottom portion is assembled in the order of stacking the closed surfaces, Place the bottom on the ground, press it from the inside to check if the Velcro is well attached, and after assembling the contents, assemble the top closing surface.

【０００８】５mmの段ボールシートを折り曲げた場合、
内側延長は損失するのに対し、外側はロスが生じない。
つまり、展開図設計上の線が段ボール箱の表面寸法にな
る。それゆえ内容積空間を設計する際、面の端の辺を外
側にシートの厚さ分５mmだけ余計に取れば正確な設計が
できる。When a 5 mm corrugated cardboard sheet is folded,
The inner extension loses, while the outer does not.
In other words, the line on the development plan becomes the surface dimension of the cardboard box. Therefore, when designing the inner volume space, an accurate design can be achieved by taking an extra 5 mm for the thickness of the sheet on the outside of the edge of the surface.

【０００９】ｔmmの厚さの段ボールシートで作った場合
を例にとり、上部から説明する。箱の設計内部空間は、
奥行きａ×横ｃ×高さｂとする。The case of using a corrugated cardboard sheet having a thickness of tmm will be described as an example from the top. The internal design space of the box is
Depth a × width c × height b.

【００１０】設計に使用するシートの厚さにつき、内容
積空間と直接接する面１０、面９、面１、面３、面２、
面４、面１２、面１１のシート厚さはｔ＝５mmとし、面
５、面６、面８、面７の閉じ面積層部の１シートあたり
の厚さは、使用による継続的な押え付けや内容物による
加重などによる損失分等を考慮しｔ´＝４．５mmとし
た。With respect to the thickness of the sheet used for the design, the surface 10, the surface 9, the surface 1, the surface 3, the surface 2, which are in direct contact with the inner volume space,
The sheet thickness of surface 4, surface 12 and surface 11 is t = 5 mm, and the thickness per sheet of the closed area layer portion of surface 5, surface 6, surface 8 and surface 7 is continuous pressing by use. Considering the loss due to the weight of the contents and the content, t '= 4.5 mm.

【００１１】縦方向の設計；上部側面高さ及び閉じ面の
設計において、展開図の構造は面１と面２を基準とす
る。（図２参照。なお図２の場合のみ、実線は裁断線で
あり、点線は折り目中心線である）面１の隣接線１４の
延長線は、面２の隣接線１５と一致する。隣接線１４−
隣接線１５の延長線を基準にして、隣接線１８は閉じ面
５の厚さ分（ｔ´）、隣接線１９はおおよそ閉じ面５、
６の厚さ分だけ中央線２４から見て高くしてある。な
お、中央線２４は説明のための仮定上の線である。Longitudinal design: In the design of the upper side surface height and the closed surface, the structure of the developed view is based on the surfaces 1 and 2. (See FIG. 2. Only in FIG. 2, the solid line is the cutting line and the dotted line is the center line of the fold line.) The extension line of the adjacent line 14 of the surface 1 coincides with the adjacent line 15 of the surface 2. Adjacent line 14-
Based on the extension of the adjacent line 15, the adjacent line 18 is the thickness (t ′) of the closed surface 5, and the adjacent line 19 is approximately the closed surface 5,
It is raised by a thickness of 6 from the center line 24. The center line 24 is a hypothetical line for explanation.

【００１２】内容積寸法ｂの確保のため、中央線２４か
ら見て隣接線１４及び隣接線１５をｂの上限からｔだけ
高くとる。つまり、中央線２４から隣接線１４並びに１
５までの高さは、ｂ／２＋ｔとなる。第一段面の面９及
び面１０は高度差がないため高さ調整の必要はない。普
通型の場合、面９及び面１０の縦幅は、第二段面５の仮
支え及び側面補強の役割のみを担うため、１０cm程度で
良い。（図３）In order to secure the inner volume dimension b, the adjacent line 14 and the adjacent line 15 are set higher than the upper limit of b by t as viewed from the center line 24. That is, from the center line 24 to the adjacent lines 14 and 1
The height up to 5 is b / 2 + t. Since there is no difference in altitude between the first and second surfaces 9 and 10, there is no need to adjust the height. In the case of the ordinary type, the vertical width of the surface 9 and the surface 10 may be about 10 cm because they serve only as a temporary support and side reinforcement of the second step surface 5. (Fig. 3)

【００１３】普通型と積み重ね型の展開図上の相違は、
上部閉じ面１４、１５の縦の長さ及び形状だけである。
積重ね型においては、上部閉じ面１０及び９を閉じた場
合、ｆcm重複するようにするためには、縦の長さをｃ／
２＋ｔ＋ｆ／２にする。展開時、手を差し入れ易くする
ため、閉じ面１０については左上端角、閉じ面９につい
ては右上端角を、それぞれ縦長の三角形に切り取る。閉
じ面９については左上端角もやや小さく三角形に切り取
る。（図４）The difference between the normal type and the stacked type in the development view is that
Only the vertical length and shape of the upper closure surfaces 14,15.
In the stacking type, when the upper closing faces 10 and 9 are closed, the vertical length is c /
Set to 2 + t + f / 2. At the time of unfolding, in order to make it easier to insert a hand, the upper left corner of the closed surface 10 and the upper right corner of the closed surface 9 are cut into vertically long triangles. The closed surface 9 is also cut into a triangle with the upper left corner slightly smaller. (FIG. 4)

【００１４】隣接線１８は、面５の厚さによる面９並び
に１０との高度調整のため、中央線２４から見て隣接線
１４より４．５mm（ｔ´）高くする。面５の縦幅も側面
ａ方向の増過に対応して２ｔだけ延ばす。The adjoining line 18 is higher than the adjoining line 14 by 4.5 mm (t ') as viewed from the center line 24 in order to adjust the height with the faces 9 and 10 by the thickness of the face 5. The vertical width of the surface 5 is also extended by 2t corresponding to the increase in the direction of the side surface a.

【００１５】また、面６それ自身の高度調整のため、隣
接線１９は１８の高度より更に２．５mmだけ高くする。
（理論上は２ｔ´で隣接線１５との高度差は９mmである
が、経験値から面６の長さに２mm延長分を計上した方
が、より緊密に仕上がる。）つまり隣接線１９は隣接線
１５より７mm高くなる（ｄ）。また、面６の縦の長さ増
過分は（側面ａ方向の増過分２ｔ＋面５、６の厚さ２ｔ
´）−ｄとなり、ここではｄ＝７mmであるから、（２×
５＋２×４．５）−７＝１２mmとなる。段ボールの硬度
や内容物重量により、ｔ´やｄの値は変わる。Also, due to the height adjustment of the surface 6 itself, the adjacent line 19 is raised above the height of 18 by an additional 2.5 mm.
(Theoretically, the height difference with the adjacent line 15 is 2t ', which is 9mm, but if the 2mm extension is added to the length of the surface 6 from the empirical value, it will be finished more closely.) That is, the adjacent line 19 is adjacent. It is 7 mm higher than line 15 (d). Also, the vertical length increase of the surface 6 is (the increase of the side surface a direction 2t + the thickness of the surfaces 5 and 2t
′) −d, where d = 7 mm, so (2 ×
5 + 2 × 4.5) −7 = 12 mm. The values of t'and d vary depending on the hardness of the corrugated board and the weight of the contents.

【００１６】下部の設計；ここでは展開図を１８０度回
転して、元の図の下方面に長さが伸びることを中央線２
４から見て「高くなる」ということにする。上記の隣接
線１４−１５と同じように、側面１の下端線１６の延長
線と側面２の下端線１７は一致する。内容積寸法ｂの確
保のため、隣接線１６・１７も中央線２４から見て、ｔ
だけｂの下限より高くなる。ここでは、閉じ面１１と１
２は組み合わされ第一段面となるため、上端線２２と上
端線２３が合わせ辺となる。閉じ面１１及び１２の縦の
長さは、それぞれｃ／２＋ｔになる。Design of the lower part; here, the development view is rotated 180 degrees so that the length is extended to the lower surface of the original view.
From the point of view of 4, it will be "higher". The extension line of the lower end line 16 of the side surface 1 and the lower end line 17 of the side surface 2 coincide with each other in the same manner as the adjacent line 14-15. In order to secure the inner volume dimension b, the adjacent lines 16 and 17 are also t when viewed from the center line 24.
Is higher than the lower limit of b. Here, the closing surfaces 11 and 1
Since the two are combined to form the first step surface, the upper end line 22 and the upper end line 23 form a mating side. The vertical lengths of the closed surfaces 11 and 12 are c / 2 + t, respectively.

【００１７】第二段面７の側面４との隣接線２０も、面
７自体の厚さによる面１１、１２との高さ調整で隣接線
１６より４．５mm（ｔ´）高くなる。また、面７はａ方
向の増過分２ｔ＝１０mmだけ縦に長くなる。The adjacent line 20 to the side surface 4 of the second step surface 7 is also 4.5 mm (t ') higher than the adjacent line 16 due to the height adjustment of the surfaces 11 and 12 by the thickness of the surface 7 itself. Further, the surface 7 is lengthened by 2t = 10 mm in the a direction.

【００１８】面８の隣接線２１も、上部面６の隣接線１
９の説明と同じような理由で、隣接線１６より７mm高く
なる（ｄ）。また面８は面６と同様、（２ｔ＋２ｔ´）
−ｄ＝１２mmだけ縦に長くなる。The adjoining line 21 of the face 8 is also the adjoining line 1 of the upper face 6.
For the same reason as explained in No. 9, it is 7 mm higher than the adjacent line 16 (d). In addition, the surface 8 is (2t + 2t ′), like the surface 6.
-D = 12mm lengthens vertically.

【００１９】横方向の設計；段ボール箱の構造上、展開
図側面の右端か左端一箇所に接着面１３を設けなくては
ならず、そのため展開図上の対辺の長さを同じく取って
は正確に長方形とはならない。図５は接着面１３を面４
に固定後、底部開口部を下から見上げたものである。
（図例では接着接合部１３の横幅は５０mmとして設定。
分かりやすくするため、段ボール箱側面シートの厚さを
極端に厚く描いている）面１の横幅の長さ増加をｔだけ
にすることによって、段ボール箱表面のａ方向対面の横
寸法が一致するようにした。Lateral design: Due to the structure of the cardboard box, the adhesive surface 13 must be provided at one place on the right side or the left side of the side view of the development view. Therefore, if the length of the opposite side on the development view is the same, it is correct. It is not rectangular. FIG. 5 shows the adhesive surface 13 as the surface 4
After fixing to, the bottom opening is looked up from below.
(In the example shown, the width of the adhesive joint 13 is set to 50 mm.
To make it easier to understand, the thickness of the side sheet of the cardboard box is drawn extremely thick.) By increasing the lateral width of surface 1 only by t, the lateral dimensions of the cardboard box surface in the a direction facing each other can be matched. I chose

【００２０】その場合、底部第一段面を内側に倒したと
き、２ｔだけ横幅を増やした面１１とのギャップ上、面
１２の隣接線２０接触部につきｔだけの隙間ができるの
で、面１２についてはｔだけ面１の横幅から張り出すよ
うにして、面１１と同様、奥行き幅をａ＋２ｔの長さに
する。上部１０面も同様にする。接着接合部１３につい
ては、面１の上下隣接線と同じ高さまで上限、下限を延
ばしたため、閉じ面を閉じたとき面１０及び面１２とに
重複箇所ができる。解決方法は、図６のように接着接合
部１３の面１０及び１２と本来重複する側を切り口から
深さ１５mm以上（図例では２０mm）の範囲に渡ってシー
ト中芯中央で２層に分断し（斜線部）分離層を接着する
ことにより、その部分だけシート厚さを２mm程度にす
る。また、面１２においては接着接合部１３との重複を
避けるため図８（面１０においては図７）のように斜線
部を除去する。In this case, when the bottom first step surface is tilted inward, a gap of t is formed at the contact portion of the adjacent line 20 of the face 12 on the gap with the face 11 whose lateral width is increased by 2t. For t, the depth width is set to a + 2t as in the case of the surface 11 by projecting from the lateral width of the surface 1 by t. The same applies to the upper 10 surfaces. Since the upper limit and the lower limit of the adhesive bonding portion 13 are extended to the same height as the upper and lower adjacent lines of the surface 1, overlapping portions are formed on the surface 10 and the surface 12 when the closed surface is closed. The solution is to divide the side that originally overlaps with the surfaces 10 and 12 of the adhesive joint 13 as shown in FIG. 6 into two layers at the center of the sheet core over a range of a depth of 15 mm or more (20 mm in the example) from the cut end. By adhering the separation layer (hatched portion), the sheet thickness is made about 2 mm only in that portion. Further, in order to avoid overlapping with the adhesive joint portion 13 on the surface 12, the shaded portion is removed as shown in FIG. 8 (on the surface 10, FIG. 7).

【００２１】マジックテープの設定位置；開口部に差し
延べる閉じ面を、組み立て後の状態で、閉じ面一片につ
き、箱の内側に向いている表面を「裏側」、外側に向い
ている表面を「表側」と呼ぶことにする。Setting position of the velcro tape: With the closed surface extending to the opening part, in the assembled state, with respect to each piece of the closed surface, the surface facing the inside of the box is the "back side", and the surface facing the outside is the one facing the outside. I will call it "front side".

【００２２】底部差し延べ面１１、１２、７における設
置（図９）；第一段面と第二段面での設置。マジックテ
ープの面１１、面１２における設置は、面１１、面１２
を箱の内側に押し倒した後、上端線２２、２３と隣接線
２１上の共通する頂点から、面１１、１２の各々の対角
に向かって頂点からやや放して、それぞれ表側に設置す
る（２５ａ、２６ａ）。対応するマジックテープ２５
ｂ、２６ｂは、隣接線２０を軸として線対称に面７の裏
側に設置する。Installation on the bottom extension surface 11, 12, 7 (FIG. 9); Installation on the first step surface and the second step surface. The installation on the surface 11 and the surface 12 of the velcro is the surface 11 and the surface 12.
After pushing down the inside of the box, from the common apex on the upper end lines 22 and 23 and the adjoining line 21, a little away from the apex toward the diagonals of the surfaces 11 and 12, and install them on the front side (25a). , 26a). Corresponding Velcro 25
b and 26b are installed on the back side of the surface 7 in line symmetry with the adjacent line 20 as an axis.

【００２３】第二段面と第三段面での設置（図１０）；
開口部内側に倒され第一断面と組み合わされた面７の表
側に、マジックテープ２７ａを面７上端線から平行にあ
る程度離して（図例では３０mm）、またマジックテープ
２８ａを隣接線２０と平行にやや離して（図例では２０
mm）設置する。マジックテープ２７ａ、２８ａの長さの
中心が隣接線２０の垂直二等分線に位置するように設置
する。対応するマジックテープ２７ｂ、２８ｂは隣接線
２１を軸として線対称に相応するよう面８の裏側に設置
する。Installation on the second and third steps (FIG. 10);
On the front side of the surface 7 which is folded inside the opening and combined with the first cross section, the magic tape 27a is separated from the upper end line of the surface 7 to some extent in parallel (30 mm in the example), and the magic tape 28a is parallel to the adjacent line 20. Slightly away (20 in the example
mm) Install. The magic tapes 27a and 28a are installed so that the centers of the lengths thereof are located on the perpendicular bisector of the adjacent line 20. The corresponding velcro tapes 27b and 28b are installed on the back side of the surface 8 so as to be symmetrical with respect to the adjacent line 21 as an axis.

【００２４】上部差し延べ面５、６における設置（図１
１）；第一段面９並びに１０を内側に倒し、次に面５を
倒し重ねた後、面５表側にマジックテープ２９ａを面５
上端線と平行にある程度離して（図例では３０mm）設置
する。また、マジックテープ３０ａを隣接線１８と平行
にやや離して（図例では２０mm）設置する。底部と同じ
ように、マジックテープの中心が、隣接線１８の垂直二
等分線を通るようにする。対応するマジックテープ２９
ｂ並びに３０ｂは、面５を内側に倒した状態で隣接線１
９を軸として線対称に相応するよう面６の裏側に設置す
る。Installation on the upper spreading surfaces 5 and 6 (see FIG. 1)
1); the first step surfaces 9 and 10 are laid inward, then the surface 5 is laid down and overlaid, and then the velcro tape 29a is placed on the surface side of the surface 5
Install parallel to the top line with some distance (30 mm in the example). Further, the velcro tape 30a is installed in parallel with the adjacent line 18 and at a distance (20 mm in the example). As with the bottom, the center of the velcro should pass through the perpendicular bisector of the adjacent line 18. Corresponding Velcro 29
b and 30b are the adjacent lines 1 with the surface 5 tilted inward.
It is installed on the back side of the surface 6 so as to be line-symmetrical about the axis 9.

【００２５】上部の場合、２９ａ、２９ｂのマジックテ
ープは耐重量構造の主要な部分ではないので、箱の積み
重ねがなされない用途の場合は省略することが可能であ
る。In the case of the upper part, the velcro tapes 29a and 29b are not the main part of the weight-resistant structure, and can be omitted in the case where the boxes are not stacked.

【００２６】積み重ね対応型のマジックテープ配置；上
部閉じ面１０の表（３１ａ）、面９の裏（３１ｂ）に付
き、各々隣接線１４並びに１５からｃ／２＋ｔの距離の
中心線を基準に図のように設置する。（１２図）Stackable type velcro tape arrangement; attached to the front surface (31a) of the upper closed surface 10 and the back surface (31b) of the surface 9 based on the center line at a distance of c / 2 + t from the adjacent lines 14 and 15 respectively. Install it like. (Fig. 12)

【００２７】[0027]

【発明の効果】本発明は以上説明したように構成されて
いるので、以下に記載するような効果を奏する。Since the present invention is configured as described above, it has the following effects.

【００２８】上部並びに底部構造においてシート厚さｔ
を考慮した設計をしているので、内部寸法ａ、ｂ、ｃの
確保がなされている。Sheet thickness t in the top and bottom structures
The internal dimensions a, b, and c are ensured because the design is made in consideration of the above.

【００２９】また、側面３及び４の上部と下部における
隣接線の設計で、ｔ´及びｄの側面の高さ調整が行われ
ているため、各積層面が同高度であった場合発生する、
面どおしの軋轢や歪みが生じることを回避できる。Further, since the heights of the side surfaces of t'and d are adjusted by designing the adjacent lines on the upper and lower sides of the side surfaces 3 and 4, this occurs when the respective laminated surfaces have the same height.
It is possible to avoid friction and distortion between the faces.

【００３０】上部閉じ面５、６、底部閉じ面７、８の差
し渡し方向、折り畳み順の設定により、組立て並びに展
開時の作業の便宜が図られている。By setting the passing direction of the upper closing surfaces 5 and 6 and the bottom closing surfaces 7 and 8 and the folding order, convenience of work at the time of assembling and unfolding is achieved.

【００３１】接着接合部１３の長さを上下に面１０並び
に面１２と接触するまで延ばした箇所においては、側面
接着面積の増大に加え、上記したような部分的層分断、
接着処置により、出っ張り厚さ削減、捲れ防止がなさ
れ、より耐久性が増している。At the place where the length of the adhesive joint portion 13 is extended vertically until it comes into contact with the surface 10 and the surface 12, in addition to the increase of the side surface adhesive area, the partial layer division as described above,
The adhesive treatment reduces the thickness of the protrusion and prevents curling, which improves durability.

【００３２】また面１０及び面１２の横ａ方向幅を、接
合部１３との接触箇所以外でａ＋２ｔとし、接合部１３
との接触箇所においてもａ＋ｔから徐々にａ＋２ｔに移
行するような裁断処理をしたため、面１０の隣接線１９
側並びに面１２の隣接線２０側に発生する隙間の発生防
止がなされている。Further, the widths of the surfaces 10 and 12 in the lateral a direction are set to a + 2t except the contact point with the joint 13, and the joint 13
Since the cutting process is performed such that the contact point with a is gradually changed from a + t to a + 2t, the adjacent line 19 of the surface 10
The formation of a gap that occurs on the side and on the adjacent line 20 side of the surface 12 is prevented.

【００３３】底部第一段面においてマジックテープの設
置を、閉じ面７上端線上に相当する面１１並びに面１２
の共通する上端角から出るそれぞれの面の対角線上の隣
接線２１側にしたことにより、第一段、第二段面各面の
中芯の波の方向が違うことに原因する、局所加重がある
場合発生する各面のたわみによるマジックテープの剥離
が防止できる。The velcro tape is installed on the bottom first step surface, and the surface 11 and the surface 12 corresponding to the closed surface 7 and the upper end line are arranged.
The local weights caused by the difference in the direction of the center wave of each of the first and second step surfaces are set by making the adjacent line 21 on the diagonal line of each surface from the common top angle of In some cases, it is possible to prevent the Velcro tape from peeling due to the bending of each surface.

【００３４】また、上部並びに底部の開口部一杯にまで
広がった第二段面と第三段面、そしてそれらが互いに接
触する面において上記の例のように設置されたマジック
テープにより、箱の積み重ね又は、重内容物の際掛かる
下方向の力に拮抗する。The boxes are stacked by the velcro tapes installed as in the above example on the second step surface and the third step surface which extend to fill the openings at the top and bottom and the surfaces where they contact each other. Alternatively, it counteracts the downward force exerted on the heavy contents.

【００３５】積み重ね対応型で、横ｃ方向中央部に設置
されたマジックテープによる第一段面どおしの連結によ
り、箱積み重ね時の横ｃ方向の張り出しを軽減する。It is a stackable type, and the protrusions in the lateral c direction at the time of stacking the boxes can be reduced by connecting the first step faces with the magic tape installed at the central portion in the lateral c direction.

【００３６】積み重ね対応型の面１４、１５の上端角を
三角形を切り欠いた形状により、組み立て並びに展開時
の作業が容易になっている。The upper surface corners of the stackable surfaces 14 and 15 are formed by cutting out triangles to facilitate assembly and unfolding work.

【図面の簡単な説明】[Brief description of drawings]

【図１】段ボール箱全体の斜視図であるFIG. 1 is a perspective view of the entire cardboard box.

【図２】上記段ボール箱全体の展開図と各部位の呼称で
ある。FIG. 2 is a development view of the cardboard box as a whole and names of respective parts.

【図３】各辺並びに各面の寸法と高度関係を表した図で
あるFIG. 3 is a diagram showing a dimension and an altitude relationship of each side and each surface.

【図４】積み重ね対応型の上部展開図である。FIG. 4 is a top development view of a stackable type.

【図５】接着接合面１３を面４に接着し、折り目線を折
った後に、底部開口部を下から見上げた図である。FIG. 5 is a diagram in which a bottom opening portion is looked up from below after the adhesive bonding surface 13 is adhered to the surface 4 and a crease line is folded.

【図６】接着接合部１３における閉じ面１０並びに１２
との重複部であるために、層分断・接着処理する対象範
囲を示した図である。FIG. 6 is a view showing the closing surfaces 10 and 12 of the adhesive joint portion 13.
It is the figure which showed the object range which carries out a layer cutting / adhesion process because it is an overlapping part with.

【図７】面１２の接着接合部１３との重複箇所の裁断処
理部分の拡大図である。FIG. 7 is an enlarged view of a cutting processing portion of the overlapping portion of the surface 12 with the adhesive joint portion 13.

【図８】面１０の接着接合部１３との重複箇所の裁断処
理部分の拡大図である。FIG. 8 is an enlarged view of a cutting processing portion of the overlapping portion of the surface 10 with the adhesive joint portion 13.

【図９】底面開口部の第一段面と第二段面とにおけるマ
ジックテープの配置図である。FIG. 9 is a layout view of the velcro tape on the first step surface and the second step surface of the bottom opening.

【図１０】底面開口部の第二段面と第三段面とにおける
マジックテープの配置図である。FIG. 10 is a layout view of the velcro tape on the second step surface and the third step surface of the bottom opening.

【図１１】上面開口部の第二段面と第三段面とにおける
マジックテープの配置図である。FIG. 11 is a layout view of the velcro tape on the second step surface and the third step surface of the upper opening.

【図１２】積み重ね対応型におけるマジックテープの配
置図であり、閉じ面１０のみを内側に倒した状態で上か
ら見下ろした図である。FIG. 12 is a layout view of a velcro tape in a stackable type, and is a view looking down from above with only the closing surface 10 inclining inward.

【符号の説明】 １、２、３、４ 側面 ９、１０、１１、１２ 第一段閉じ面 ５、７ 第二段閉じ面 ６、８ 第三段閉じ面 １８、１９、２０、２１ 隣接線 １３ 接着接合面 ２５ａ、２６ａ、２７ａ、２８ａ、２９ａ、３０ａ、３
１ａ マジックテープ ２５ｂ、２６ｂ、２７ｂ、２８ｂ、２９ｂ、３０ｂ、３
１ｂ マジックテープ[Explanation of reference numerals] 1, 2, 3, 4 Side surfaces 9, 10, 11, 12 First stage closing surface 5, 7 Second stage closing surface 6, 8 Third stage closing surface 18, 19, 20, 21 Adjacent line 13 Adhesive bonding surfaces 25a, 26a, 27a, 28a, 29a, 30a, 3
1a Velcro tape 25b, 26b, 27b, 28b, 29b, 30b, 3
1b Velcro

Claims (6)

【特許請求の範囲】[Claims] 【請求項１】 上部と底部とに開口部を有する段ボール
箱で、底面開口部に差し延べるマジックテ−プを設置し
た複数の可動閉じ面（フラップ）が組立て時に三層を形
成し、一段面あたり四角形開口部一杯に広がって（四角
形開口部と合同で）おり、また上面開口部に差し延べる
マジックテープを設置した複数の閉じ面について、組立
て時に少なくとも二層以上の積層を形成し、第二段面及
び第三段面が一段面あたり四角形開口部一杯に広がって
いる（四角形開口部と合同である）段ボール箱。1. A cardboard box having openings at the top and bottom, wherein a plurality of movable closing surfaces (flaps) provided with a magic tape extending to the opening at the bottom form three layers at the time of assembly, and a single-step surface. Around the square opening, it is spread out (jointly with the square opening), and a plurality of closed surfaces with velcro attached to the top opening form a stack of at least two layers during assembly. A corrugated cardboard box in which the second step surface and the third step surface are spread over the entire square opening (which is congruent with the square opening). 【請求項２】 閉じ面が積層することによる積層面の歪
みの回避法として、第二段シートの厚みを加味した第二
段面隣接側面縦幅の長さ延長、及び第二並びに第三段シ
−トの厚みを加味した第三段面隣接側面縦幅の長さ延長
の設計、その他シートの厚さを考慮した内容積確保及び
全体の歪みの矯正のための折り目中心線の設計を行った
請求項１に記載の段ボール箱。2. As a method of avoiding the distortion of the laminated surface due to the lamination of the closed surfaces, the length extension of the vertical width of the side surface adjacent to the second step surface considering the thickness of the second step sheet, and the second and third steps We designed the extension of the vertical width of the side adjacent to the third step surface, taking into account the thickness of the sheet, and designed the center line of the fold to secure the inner volume and correct the overall distortion in consideration of other sheet thicknesses. The cardboard box according to claim 1. 【請求項３】 段ボール箱上部と下部において、閉じ面
差し延べ方向を第二段面ごとに見て逆方向、第三段面ご
とに見て逆方向にし、順次同じ動作で上部、底部の展開
並びに組み立てができるようにした積層面閉じ順の展開
構造を有する請求項１に記載の段ボール箱。3. In the upper and lower parts of the corrugated cardboard box, the extending directions of the closed surfaces are set to the opposite direction when viewed for each second step surface and the opposite direction when viewed for each third step surface, and the same operation is performed to develop the upper part and the bottom part. The corrugated cardboard box according to claim 1, which has a development structure in which the stacking surfaces are closed in order that they can be assembled. 【請求項４】 より少ない接着面積で高負荷耐重を実現
したマジックテープの配置、つまり底部においては、第
一段面１１並びに１２で、第二段面の差し延べ面上端中
央と第一段面合わせ辺との交差角から伸びる各々の面の
対角線上に配置され、閉じ面７と８の間で、それぞれの
閉じ面上端辺に沿った二つの内線上に配置され、上部に
おいては、閉じ面５と６の間で、閉じ面６上端線のみの
内線上又は閉じ面６及び５の上端線に沿った二つの内線
上に配置された、請求項１に記載の段ボール箱。4. The arrangement of the velcro tape which realizes high load bearing with a smaller bonding area, that is, at the bottom, is the first step surface 11 and 12, and the center of the upper end of the extending surface of the second step surface and the first step surface. Located on the diagonal of each face extending from the intersection with the mating side, between the closing faces 7 and 8 on two extensions along the top edge of each closing face, and at the top, the closing face. The cardboard box according to claim 1, which is arranged between 5 and 6 on the extension line of only the upper end line of the closing surface 6 or on two extension lines along the upper end line of the closing surfaces 6 and 5. 【請求項５】 第一段面閉じ面１４、１５共に縦幅を箱
の横幅ｃ方向中央より長めにとり、それによってできた
中央重複部にマジックテープを設置し互いを繋げること
によって、箱積み重ね時の上部からの圧迫による横方向
の長さ膨脹を防止し、更に作業の便宜を図って閉じ面１
４、１５の上端角を三角形に切り欠いた形状にした請求
項１に記載の段ボール箱。5. When stacking boxes, the first step closing surfaces 14 and 15 are made to have a vertical width longer than the center in the lateral width c direction of the box, and a Velcro tape is installed in the central overlapping portion formed thereby to connect them to each other. The lateral surface is prevented from expanding due to pressure from the upper part of the closing surface, and the closing surface 1
The corrugated cardboard box according to claim 1, wherein the upper corners 4 and 15 are notched in a triangular shape. 【請求項６】 接着接合部１３を箱のｂ方向、上限並び
に下限まで延ばし丈夫にした構造。接着接合部１３の上
端線並びに下端線双方の切り口から１．５cm以上の深さ
まで中芯の中央に切り込みを入れ、二層に分割した後そ
れらを接着し押し潰す等、それに関係する接合部と閉じ
面第一段面の空間的重複箇所の処理方法を行った請求項
１に記載の段ボール箱。6. A structure in which the adhesive bonding portion 13 is extended to the b direction of the box, the upper limit and the lower limit to make it strong. A cut is made in the center of the core to a depth of 1.5 cm or more from the cuts of both the upper end line and the lower end line of the adhesive joint 13, and the two are divided into two layers and then they are adhered and crushed. The corrugated cardboard box according to claim 1, wherein a method of treating a spatially overlapping portion of the first surface of the closed surface is performed.