JPH0518260Y2 - - Google Patents

Description

【考案の詳細な説明】 ［考案の目的］ （産業上の利用分野） 本考案は、例えば家庭電化製品や野菜・果物等
を梱包するのに好適な、蓋の開閉構造が改善され
た折り畳み式段ボール箱に関する。[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention is a folding type with an improved lid opening/closing structure suitable for packaging home appliances, vegetables, fruits, etc. Regarding cardboard boxes.

（従来の技術） 従来の段ボール箱は、角筒状周壁部の四壁面の
夫々の上辺と下辺とに、折り目を介して蓋片と底
片とを一体に形成した形態を備えていて、箱を潰
した状態に折り畳める様になつている。(Prior Art) A conventional corrugated box has a structure in which a lid piece and a bottom piece are integrally formed on the upper and lower sides of each of the four wall surfaces of a rectangular cylindrical peripheral wall through folds. It is designed so that it can be folded into a crushed state.

そして、折り畳まれた箱を組み立てるには、周
壁部を角筒状に拡げたうえ、相対向して位置する
蓋片同士及び底片同士を順次折り合わせて底閉じ
及び蓋閉じを行い、それらの重ね合わせ部分をテ
ープ止めするか、止め金で固定していた。 To assemble the folded box, the peripheral wall is expanded into a rectangular tube shape, and the opposing lid pieces and bottom pieces are successively folded together to close the bottom and lid, and then overlap them. The mating parts were taped or secured with clasps.

又、家庭電化製品の様に季節毎に物品を出し入
れする使い方をする箱では、相対向する蓋片の一
方に設けた係合用舌片を、他方の蓋片に設けた切
れ目に嵌め込ませて、閉じた蓋を簡便に固定出来
る様にしたものも用いられている。 In addition, for boxes such as home appliances that are used to put items in and take them out depending on the season, the engaging tongue piece provided on one of the opposing lid pieces is fitted into the slit provided on the other lid piece. A device with a closed lid that can be easily fixed is also used.

（考案が解決しようとする課題） 上記の如き組立構造をもつた段ボール箱の１つ
の欠点は、閉じられていた箱の蓋を開いた時、４
枚の蓋片は夫々折りぐせが付いているので、此等
を完全に開いた状態に保持させるのが厄介で、こ
の点使い勝手が悪かつた。又、箱を開き又は折り
畳む為に、４枚の蓋片を一枚一枚曲げ又は延ばす
操作も煩わしく非能率でつた。(Problem to be solved by the invention) One drawback of the cardboard box with the assembly structure described above is that when the lid of the box is opened, the
Since each of the lid pieces had a crease, it was troublesome to hold them completely open, which made it inconvenient to use. Furthermore, the operation of bending or extending the four lid pieces one by one in order to open or fold the box was cumbersome and inefficient.

更に、係合用舌片を設けたものでは、蓋を反復
開閉しているうちに舌片がちぎれてしまつたり、
切れ目にスムーズに嵌め込み難かつたりする難点
があつた。 Furthermore, in cases where an engaging tongue piece is provided, the tongue piece may be torn off while the lid is repeatedly opened and closed.
The problem was that it was difficult to fit smoothly into the cut and it would slip.

そこで、本考案の目的は、蓋の開閉及び閉ざし
た蓋を固定させる作業を簡単確実に行えるように
した折り畳み式段ボール箱を提供するにある。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a foldable cardboard box in which the operations of opening and closing the lid and fixing the closed lid can be easily and reliably performed.

［考案の構成］ （課題を解決するための手段） 上記目的を達成するために、本考案の折り畳み
式段ボール箱は、箱の長手側壁部３，５と幅側壁
部２，４とを折曲自在な連接部Ａ，Ｂ，Ｃ，Ｊを
介して交互に連接させて折り畳み可能とした角筒
状の周壁部６と、該周壁部６の上縁を巡る様に折
曲自在な連接部を介して延設され箱の長さ方向に
沿う長手側蓋片１１，１３と幅方向に沿う幅側蓋
片１０，１２とが折曲自在な連接部Ｆ，Ｇ，Ｈ，
Ｋを介して交互に連接された形態を備えてその延
設長さ寸法が箱の幅寸法の1/2に等しい蓋部９と、
前記周壁部６の下縁に折曲自在な連接部Ｌ，Ｍ，
Ｎ，Ｏを介して延設された底片部２３〜２６とを
備えてなり、且つ前記幅側蓋片１０，１２にはそ
の底辺を底辺とする台形切欠１４，１５を設ける
と共に、各上縁の中央部に方形切欠１６，１７を
設け、此等両切欠１４，１６及び１５，１７の間
に形成された小台形部１８，１９の上縁には夫々
方形切欠内に突出する突片２０，２０を一体形成
し、且つ、前記小台形部の両斜辺には夫々折り目
Ｉを設け、前記幅側壁部にはこの折り目に沿つて
前記幅側蓋片の内側面に折り重ねられた前記小台
形部を嵌合させるくり抜き穴７，８を設け、箱を
開いた状態で前記両長手側蓋片をその連接部を介
して観音扉状に閉ざすことによつて、前記幅側蓋
片が前記小台形部の折り目Ｉを境に台形に折り畳
まれて蓋止め片部２９，２９が形成され、この蓋
止め片部を前記幅側壁部の外側面に沿わせる様に
折り曲げたうえ前記小台形部を前記くり抜き穴に
嵌合させ且つ前記突片を前記くり抜き穴の口縁に
掛合わせることによつて蓋閉じ状態を固定させる
構成とした。[Structure of the invention] (Means for solving the problem) In order to achieve the above object, the foldable cardboard box of the present invention has the longitudinal side walls 3, 5 and the width side walls 2, 4 bent. A rectangular cylindrical peripheral wall part 6 that can be folded by being alternately connected through flexible connecting parts A, B, C, and J, and a connecting part that can be bent freely so as to go around the upper edge of the peripheral wall part 6. Connecting parts F, G, H, which are extended through the box, and the longitudinal side lid pieces 11, 13 along the length direction of the box and the width side lid pieces 10, 12 along the width direction are bendable.
Lid portions 9 are alternately connected via K and have an extended length equal to 1/2 of the width of the box;
Bendable connecting portions L, M at the lower edge of the peripheral wall portion 6,
The width side lid pieces 10, 12 are provided with trapezoidal notches 14, 15 whose bases are the bases, and the upper edges Rectangular notches 16 and 17 are provided in the center of the cutouts 14 and 16, and small trapezoidal portions 18 and 19 formed between the cutouts 14 and 15 and 17 are provided with protruding pieces 20 on the upper edges thereof, respectively, that protrude into the square cutouts. . By providing hollow holes 7 and 8 into which the trapezoidal parts are fitted, and closing both longitudinal side lid pieces in a double-door shape via their connecting parts with the box open, the width side lid pieces can be The small trapezoidal portion is folded into a trapezoid along the crease I to form the lid stopper pieces 29, 29, and the lid stopper pieces are bent along the outer surface of the width side wall portion and then folded into the small trapezoidal portion. The closed state of the lid is fixed by fitting the lid into the hollow hole and hooking the projecting piece onto the edge of the hollow hole.

そして、前記小台形部１８，１９の底縁にも、
前記くり抜き穴７，８の口縁に掛合わさせる突片
３０，３０を一体形成させる様にしてもよい。 Also, on the bottom edges of the small trapezoidal parts 18 and 19,
Projecting pieces 30, 30 which are engaged with the edges of the hollow holes 7, 8 may be integrally formed.

又、 前記両幅側壁２，４及び前記幅側蓋片１
０，１２に、夫々手掛け穴２７を設ける様にする
とよい。 Also, the both width side walls 2 and 4 and the width side cover piece 1
It is preferable to provide hand holes 27 at 0 and 12, respectively.

更に、前記底片部２３〜２６を、前記蓋部９と
同一の構成としてもよい。 Furthermore, the bottom pieces 23 to 26 may have the same structure as the lid 9.

（作用） 折り畳み式の段ボール箱の周壁部６を角筒状に
拡げると共に、底辺部２３〜２６を折曲して箱の
底面を形成させた状態で、両長手側蓋片１１，１
３をその連接部Ｄ，Ｅに沿つて観音扉状に閉ざし
て行くと、この動きを伝えられた両幅側蓋片１
０，１２の両側半部は夫々折り目Ｉに沿つて折曲
されて、台形をした蓋止め片部２９，２９が、箱
の両幅側端から突出する状態のもとに自ずから形
成される。そこで、この蓋止め片部をその連接部
Ｆ，Ｇ，Ｈ，Ｋに沿つて折り曲げ、幅側壁部２，
４の外側面に沿わせて小台形部１８，１９を夫々
くり抜き穴７，８に嵌合させると共に、突片２
０，２０をくり抜き穴７，８の口縁に夫々掛合さ
せれば、簡単迅速に蓋閉じと、閉じた蓋部９の固
定が完了する。(Function) With the peripheral wall 6 of the foldable cardboard box expanded into a rectangular tube shape and the bottom sides 23 to 26 bent to form the bottom of the box, both longitudinal side lid pieces 11 and 1 are opened.
3 is closed along the connecting parts D and E in a double door shape, both width side lid pieces 1 which are transmitted with this movement
Both half portions of boxes 0 and 12 are bent along the fold line I, respectively, and trapezoidal lid stopper pieces 29 and 29 are naturally formed in a state in which they protrude from both width side ends of the box. Therefore, this lid stopper piece was bent along its connecting parts F, G, H, and K, and the width side wall part 2,
The small trapezoidal parts 18 and 19 are fitted into the hollow holes 7 and 8, respectively, along the outer surface of the projecting piece 2.
0 and 20 are engaged with the edges of the hollow holes 7 and 8, respectively, the lid can be easily and quickly closed and the closed lid part 9 can be fixed.

次に、箱を折り畳むには、突片２０，２０をく
り抜き穴７，８から引出し、両長手側蓋片１１，
１３を観音開き状に開きながら、周壁部６を側方
から押し潰せばよい。 Next, in order to fold the box, the projecting pieces 20, 20 are pulled out from the hollow holes 7, 8, and both longitudinal side lid pieces 11,
What is necessary is just to crush the surrounding wall part 6 from the side while opening 13 in a double-door shape.

（実施例） 以下に本考案の一実施例につき第１図〜第６図
を参照しながら説明する。(Example) An example of the present invention will be described below with reference to FIGS. 1 to 6.

本考案の段ボール箱は、一枚の段ボールを第１
図の様に所定の形状に打ち抜くと共に所定箇所に
折曲自在な連接部を設けた素材シート１を、折り
曲げ及び糊付け加工して作られるので、先ず、こ
の素材シート１の形状を説明する。 The cardboard box of this invention consists of a single piece of cardboard.
First, the shape of the material sheet 1 will be explained because it is made by bending and gluing a material sheet 1 that is punched out into a predetermined shape as shown in the figure and provided with bendable connecting portions at predetermined locations.

全体として略長方形をした素材シート１は、そ
の長手方向中央部に第１図の左側から順に、一方
の幅側壁部２、一方の長手側壁部３、他方の幅側
壁部４、他方の長手側壁部５が夫々折曲自在な連
接部Ａ，Ｂ，Ｃを介して一体に連続されて、段ボ
ール箱の周壁部６を成している。 The material sheet 1, which is approximately rectangular overall, has one width side wall portion 2, one length side wall portion 3, the other width side wall portion 4, and the other length side wall portion 5 connected together in order from the left side in Figure 1 at the center in the longitudinal direction via freely foldable connecting portions A, B, and C, respectively, to form the peripheral wall portion 6 of the cardboard box.

７及び８は、夫々幅側壁部２，４の上部に設け
た逆台形をしたくり抜き穴である。 Reference numerals 7 and 8 indicate inverted trapezoidal hollow holes provided in the upper portions of the width side wall portions 2 and 4, respectively.

９はこの周壁部６の上縁を巡る様に延設した蓋
部で、その延設長さ寸法は箱の幅寸法（図中にＷ
で示す）の1/2に設定している。此の蓋部９は、
幅側壁部２に隣る幅側蓋片１０と、長手側壁３に
折曲自在な連接部Ｄを介して上方に連接された長
手側蓋片１１と、幅側壁部４に隣る幅側蓋片１２
と、長手側壁部５に折曲自在な連接部Ｅを介して
上方に連接された長手側蓋片１３とが、夫々折曲
自在な連接部Ｆ，Ｇ，Ｈを介して横方向に一体に
連接されて構成されている。 Reference numeral 9 denotes a lid extending around the upper edge of the peripheral wall 6, and its extended length is equal to the width of the box (W in the figure).
) is set to 1/2. This lid part 9 is
A width side lid piece 10 adjacent to the width side wall part 2, a longitudinal side lid piece 11 connected upwardly to the longitudinal side wall 3 via a bendable connecting part D, and a width side lid adjacent to the width side wall part 4. Piece 12
and a longitudinal side cover piece 13 connected upwardly to the longitudinal side wall portion 5 via a bendable connecting portion E, which are integrated in the lateral direction via bendable connecting portions F, G, and H, respectively. constructed in a connected manner.

各幅側蓋片１０，１２には、夫々その底辺を底
辺とする台形切欠１４，１５を設けており、その
高さ寸法は1/4Ｗとし、両斜辺の傾斜角度は45°に
設定している。又、各幅側蓋片部１０，１２の上
縁中央部には、夫々方形切欠１６，１７を設ける
ことによつて、此等両切欠の間に夫々小台形部１
８，１９を形成させている。この小台形部１８，
１９の高さ寸法は1/6Ｗとしている。Ｉは、その
両斜辺に段ボールの厚さの略２倍に等しい幅を以
て設けた２条の折り目で、此等の折り目に沿つて
折曲が確実に行なわれる様に短い切れ目を点綴状
に設けている。更に、小台形部１８，１９の上縁
には、方形切欠１６，１７内に突出する様に突片
２０，２０を一体に設けている。 Each width side cover piece 10, 12 is provided with a trapezoidal notch 14, 15 whose base is the base thereof, the height dimension thereof is 1/4W, and the inclination angle of both hypotenuses is set to 45°. There is. Furthermore, by providing rectangular notches 16 and 17 at the center of the upper edge of each of the width side lid pieces 10 and 12, a small trapezoidal portion 1 is formed between these notches.
8 and 19 are formed. This small trapezoidal part 18,
The height dimension of 19 is 1/6W. I is two folds with a width approximately twice the thickness of the cardboard on both oblique sides, and short cuts are made in a dotted pattern to ensure folding along these folds. It is set up. Further, projecting pieces 20, 20 are integrally provided on the upper edges of the small trapezoidal parts 18, 19 so as to project into the rectangular notches 16, 17.

２１，２２は素材シート１を角筒状に折り曲げ
た状態で、この角筒形状を固定させる為の夫々糊
付け片で、折曲自在な連接部Ｊ，Ｋを介して夫々
幅側壁部２及び幅側蓋片１０に一体に連接されて
いる。 21 and 22 are glued pieces for fixing the rectangular tube shape when the material sheet 1 is bent into a rectangular tube shape, and the width side wall portion 2 and the width It is integrally connected to the side cover piece 10.

２３，２４，２５及び２６は夫々周壁部６の４
側壁部２〜５の各下辺に折曲自在な連接部Ｌ，
Ｍ，Ｎ，Ｏを介して一体に連接された底片部であ
つて、そのうち底片部２４及び２６には、各左下
隅部に折り目Ｐ，Ｑによつて区切られた三角形の
糊付け部２４ａ，２６ａを設けている。 23, 24, 25 and 26 are 4 of the peripheral wall portion 6, respectively.
A bendable connecting portion L on each lower side of the side wall portions 2 to 5;
The bottom pieces 24 and 26 are integrally connected via M, N, and O, and the bottom pieces 24 and 26 have triangular glued parts 24a and 26a separated by folds P and Q at the lower left corners, respectively. has been established.

尚、２７は両幅側壁部２，４のくり抜き穴７，
８の上部に夫々設けた手掛け穴であり、２８はこ
の手掛穴２７の形成位置に対応させて両幅側蓋片
１０，１２に夫々設けた手掛穴形成用の切欠であ
る。 In addition, 27 is a hollow hole 7 in both width side walls 2 and 4,
Reference numeral 8 indicates a hand hole formed in the upper part of each hand hole 27, and 28 indicates a notch for forming a hand hole provided in each of the lid pieces 10 and 12 on both width sides in correspondence with the formation position of the hand hole 27.

次に上記構成の作用を説明する。 Next, the operation of the above configuration will be explained.

先ず、段ボール箱を作るには、素材シート１を
段ボールの打ち抜き加工によつて作成し、これを
連接部Ａ，Ｆ，Ｂ，Ｇ，Ｃ，Ｈに沿つて角筒状に
折り曲げたうえ、糊付け片２１，２２を素材シー
ト１の右端（第１図で）に貼り着けることによつ
て周壁部６を形成させる。次いで、各底片部２３
〜２６を箱の内側に向けて折り曲げながら第６図
に示した様に、カメラのシヤツタ状に互いに重ね
合わせたうえ、糊付け部２４ａ，２６ａにおいて
重ね合わせ部分を貼り合わせることによつて、段
ボール箱が出来上がる。 First, in order to make a cardboard box, a material sheet 1 is created by punching cardboard, which is folded into a rectangular tube shape along the connecting parts A, F, B, G, C, and H, and then glued. The peripheral wall portion 6 is formed by pasting the pieces 21 and 22 to the right end (in FIG. 1) of the material sheet 1. Next, each bottom piece portion 23
26 are folded toward the inside of the box, stacked on top of each other in the shape of a camera shutter, as shown in FIG. is completed.

この段ボール箱を保管の為に折り畳むには、そ
の底面を下側から押し上げると、互いに貼り合わ
されている底片部２３，２４及び２５，２６は、
夫々折れ目Ｐ，Ｑを境に上向き方向に折り畳まれ
て行くと共に、この動きに伴つて周壁部６も平行
四辺形状に折り畳まれて行くので、そのまま押し
潰せば完全に偏平に折り畳める。 To fold this cardboard box for storage, push up the bottom from below, and the bottom pieces 23, 24 and 25, 26 that are attached to each other will
They are folded upward at the creases P and Q, and along with this movement, the peripheral wall portion 6 is also folded into a parallelogram shape, so if it is crushed as it is, it can be completely folded flat.

次に、この畳まれた段ボール箱を拡げるには、
周壁部６の対角線方向の２つの角を互いに近ずく
方向に押しやれば、各底片部２３〜２６は上記と
は逆の動きをして、周壁部６は自ずから角筒状に
拡げられると共に箱の底面が形成される。この
時、蓋部９は周壁部６の上縁部を上方に延長した
様に角筒状をなして立ち上がつた状態になるの
で、段ボール箱内に容易に物を納めることが出来
る。 Next, to unfold this folded cardboard box,
If the two diagonal corners of the peripheral wall 6 are pushed toward each other, each of the bottom pieces 23 to 26 moves in the opposite direction to the above, and the peripheral wall 6 naturally expands into a rectangular tube shape and forms a box. The bottom surface of is formed. At this time, the lid part 9 stands up in a rectangular tube shape as if by extending the upper edge of the peripheral wall part 6 upward, so that items can be easily stored in the cardboard box.

次いで、蓋部９を閉ざすには、第２図に示した
様に、両長手側蓋片１１，１３を連接部Ｄ，Ｅに
沿つて同時に観音扉状に閉ざして行くと、それに
伴つて両幅側蓋片１０，１２は連接部Ｆ，Ｇ，
Ｈ，Ｋに沿つて箱の両幅側端から突出する様に折
り曲げられて行き、その動きに伴つて小台形部１
８，１９は折り目Ｉに沿つて折曲され、両幅側蓋
片１０，１２の裏側面に折り重ねられて行き、最
後には第３図、第４図に示した様に台形をした蓋
止め片部２９，２９が形成される。 Next, in order to close the lid part 9, as shown in FIG. The width side lid pieces 10, 12 have connecting parts F, G,
It is bent along H and K so as to protrude from both width sides of the box, and as it moves, the small trapezoidal part 1
8 and 19 are folded along the fold line I, and then folded over the back surfaces of the lid pieces 10 and 12 on both width sides, and finally a trapezoidal lid is formed as shown in FIGS. 3 and 4. Stopper pieces 29, 29 are formed.

そして、この蓋止め片部２９，２９を第４図、
第５図に示した様に幅側壁部２，４の外側面に完
全に折り重ねると、蓋止め片部２９の裏側に突出
した状態にある小台形部１８，１９が台形をした
くり抜き穴７，８内にぴつたり嵌合される。この
嵌合の際に、その先端の突片２０，２０を夫々く
り抜き穴７，８の口縁部裏側に押し込めば、突片
２０，２０による掛合効果によつて、第５図に示
した閉じられた状態に固定される。 Then, the lid stopper pieces 29, 29 are shown in FIG.
As shown in FIG. 5, when the width side walls 2 and 4 are completely folded over each other, the small trapezoidal parts 18 and 19 protruding from the back side of the lid stopper piece 29 form a trapezoidal hollow hole 7. , 8 is a tight fit. At the time of this fitting, if the protrusions 20, 20 at the tips are pushed into the back sides of the mouth edges of the hollow holes 7, 8, the engagement effect of the protrusions 20, 20 will cause the closing shown in FIG. Fixed state.

閉じられた蓋部９を開くには、蓋止め片部２９
を持ち上げて突片２０，２０をくり抜き穴７，８
から離脱させたうえ、両長手側蓋片１１，１３を
観音開き状に拡開させて行けば、再び元の角筒状
に完全に展開される。 To open the closed lid part 9, use the lid stopper part 29.
Lift up the protrusions 20, 20 and cut out the holes 7, 8.
If the lid pieces 11 and 13 on both longitudinal sides are opened in a double-door shape, the lid pieces will be completely expanded into the original rectangular tube shape again.

この様に、上記構成によれば、周壁部６の上辺
に一体形成した蓋部９は、従来のものが４つの蓋
片に分割されていたのとは異なつて、連接部Ｆ，
Ｇ，Ｈ，Ｋ介して一体に連接されており、且つ特
定の形状を備えているので、長手側蓋片１１，１
３を観音開き状に開閉させるという極めて簡単な
動作を行うだけで、蓋部９を確実に開閉させるこ
とが出来る。 In this way, according to the above structure, the lid part 9 integrally formed on the upper side of the peripheral wall part 6 has a connecting part F, unlike the conventional one which is divided into four lid pieces.
Since they are integrally connected via G, H, and K and have a specific shape, the longitudinal side lid pieces 11, 1
The lid part 9 can be opened and closed reliably by performing an extremely simple operation of opening and closing the lid part 3 in a double-door shape.

然も、蓋部９を閉じた状態に固定させるには、
幅側蓋片１０，１２に設けた突片２０，２０を単
にくり抜き穴７，８の口縁に掛合わさせるだけで
よく、従来の様に煩わしいテープ止めや、金具止
め作用は不要になる。 However, in order to fix the lid part 9 in the closed state,
The protrusions 20, 20 provided on the width side lid pieces 10, 12 need only be engaged with the edges of the hollow holes 7, 8, and the troublesome tape fastening and metal fitting fastening operations required in the past are unnecessary.

そして、幅側壁部２，４にくり抜き穴７，８を
設けたことによる箱の幾分かの強度低下は、此の
箇所に沿わされる二枚重ねに強化された蓋止め片
２９によつて十分に補はれる。 The slight decrease in the strength of the box due to the provision of the cut-out holes 7 and 8 in the width side walls 2 and 4 is sufficiently compensated for by the lid stopper piece 29, which is reinforced by two layers placed along these parts. Compensated.

第７図及び第８図は本考案の実施例を示してい
る。 7 and 8 show an embodiment of the invention.

上記実施例との相異点は、小台形部１８，１９
の下縁にも夫々突片３０を一体に設けたところに
ある。この実施例のものは、蓋止め片部２９が、
小台形部１８，１９の夫々の上下両縁に設けた１
組の突片２０，３０によつて、上下両方向に抜け
止めされた状態でくり抜き穴７，８の口縁に掛合
されるので、蓋止め片部２９はより確実に箱の側
壁部に固定される。 The difference from the above embodiment is that the small trapezoidal portions 18 and 19
The lower edge of each of the lid fasteners 29 has a protruding piece 30 formed integrally therewith.
The small trapezoidal portions 18 and 19 are provided at both upper and lower edges.
The pair of projections 20, 30 engages with the edges of the cutout holes 7, 8 while preventing the lid retaining piece 29 from slipping out in both the up and down directions, so that the lid retaining piece 29 is more securely fixed to the side wall of the box.

尚、上記各実施例では、観音扉状の開閉構造を
蓋部６にのみ設けているが、同様な開閉構造を箱
の底片部２３〜２６にも形成させる様にしてもよ
い。 In each of the embodiments described above, a double door-like opening/closing structure is provided only on the lid 6, but a similar opening/closing structure may also be formed on the bottom pieces 23 to 26 of the box.

考案の効果 以上の説明によつて明らかな様に、本考案の折
り畳み式段ボール箱は、箱の長手側壁部３，５
と、幅側壁部２，４とを折曲自在な連接部Ａ，
Ｂ，Ｃ，Ｊを介して交互に連接させて折り畳み可
能とした角筒状の周壁部６と、該周壁部６の上縁
を巡る様に折曲自在な連接部を介して延設され箱
の長さ方向に沿うよう長手側蓋片１１，１３と幅
方向に沿う幅側蓋片１０，１２とが折曲自在な連
接部Ｆ，Ｇ，Ｈ，Ｋを介して交互に連接された形
態を備えてその延設長さ寸法が箱の幅寸法の1/2
に等しい蓋部９と、前記周壁部６の下縁に折曲自
在な連接部Ｌ，Ｍ，Ｎ，Ｏを介して延設された底
片部２３〜２６とを備えてなり、且つ前記幅側蓋
片１０，１２にはその底辺を底辺とする台形切欠
１４，１５を設けると共に、各上縁の中央部に方
形切欠１６，１７を設け、此等両切欠１４，１６
及び１５，１７の間に形成された小台形部１８，
１９の上縁には夫々方形切欠内に突出する突片２
０，２０を一体形成し、且つ、前記小台形部の両
斜辺には夫々折り目Ｉを設け、前記幅側壁部には
この折り目に沿つて幅側蓋片の内側面に折り重ね
られた前記小台形部を嵌合させるくり抜き穴７，
８を設け、箱を開いた状態で前記長手側蓋片をそ
の連接部を介して観音扉状に閉ざすことによつ
て、前記幅側蓋片が前記小台形部の折り目Ｉを境
に台形に折り畳まれて蓋止め片部２９，２９が形
成され、この蓋止め片部を前記幅側壁部の外側面
に沿わせる様に折り曲げたうえ前記小台形部を前
記くり抜き孔に嵌合させ且つ前記突片を前記くり
抜き穴の口縁に掛合わせることによつて蓋閉じ状
態を固定させる様に構成したので、蓋部の開閉及
び閉ざした蓋を固定させる作業を簡単且つ確実に
行うことが出来る。Effects of the invention As is clear from the above explanation, the foldable cardboard box of the invention has the longitudinal side walls 3 and 5 of the box.
and a connecting portion A that can freely bend the width side wall portions 2 and 4.
A rectangular cylindrical peripheral wall part 6 which is alternately connected via B, C, and J and can be folded, and a box extending through a bendable connecting part so as to go around the upper edge of the peripheral wall part 6. A configuration in which longitudinal side lid pieces 11, 13 along the length direction and width side lid pieces 10, 12 along the width direction are alternately connected via bendable connecting parts F, G, H, K. whose extended length dimension is 1/2 of the box width dimension
and bottom piece parts 23 to 26 extending from the lower edge of the peripheral wall part 6 via bendable connecting parts L, M, N, and O, and The lid pieces 10, 12 are provided with trapezoidal notches 14, 15 whose bases are the bases, and rectangular notches 16, 17 are provided in the center of each upper edge.
and a small trapezoidal part 18 formed between 15 and 17,
At the upper edge of 19, there are projecting pieces 2 protruding into the square notches.
0, 20 are integrally formed, and a crease I is provided on both oblique sides of the small trapezoidal part, and the small trapezoid part is folded over the inner surface of the width side lid piece along the crease on the width side wall part. Hole 7 into which the trapezoidal part is fitted;
8, and when the box is open, the longitudinal side lid piece is closed in the shape of a double door via the connecting part, so that the width side lid piece becomes trapezoidal with the crease I of the small trapezoidal part as a boundary. The lid retaining pieces 29 are folded to form lid retaining pieces 29, and the lid retaining pieces are bent along the outer surface of the width side wall, and the small trapezoidal portion is fitted into the hollow hole, and the protrusion is Since the lid is fixed in the closed state by hanging the piece over the mouth edge of the hollow hole, the work of opening and closing the lid and fixing the closed lid can be easily and reliably performed.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図〜第６図は本考案の一実施例を示すもの
で、第１図は素材シートの展開図、第２図は蓋部
を半ば閉ざした状態を示す斜視図、第３図は蓋部
を完全に閉ざした状態の斜視図、第４図及び第５
図は夫々蓋部を閉ざした状態に於ける側面図及び
側面部の部分拡大縦断面図、第６図は底面図であ
る。第７図及び第８図は本考案の別の実施例を示
すもので、第７図は素材シートの展開部分図、第
８図は第４図相当図である。 符号表、１……素材シート、２，４……幅側壁
部、３，５……長手側壁部、６……周壁部、７，
８……くり抜き穴、９……蓋部、１０，１２……
幅側蓋片、１１，１３……長手側蓋片、１４，１
５……台形切欠、１６，１７……方形切欠、１
８、１９……小台形部、２０，３０……突片、２
３〜２６……底片部、２７……手掛け穴、２９…
…蓋止め片部、Ａ〜Ｑ……折曲自在な連接部。 1 to 6 show one embodiment of the present invention, in which FIG. 1 is a development of the material sheet, FIG. 2 is a perspective view showing the lid part half-closed, FIG. 3 is a perspective view showing the lid part completely closed, and FIGS. 4 and 5
7 and 8 show another embodiment of the present invention, in which FIG. 7 is a partial development view of the material sheet, and FIG. 8 is a view equivalent to FIG. 4.
8: Hole; 9: Lid; 10, 12:
Width side cover pieces, 11, 13 ... Length side cover pieces, 14, 1
5... Trapezoidal notch, 16, 17... Square notch, 1
8, 19: Small trapezoidal portion, 20, 30: Projection piece, 2
3-26: Bottom piece, 27: Handle hole, 29:
... Lid stopping piece, A to Q... Freely bendable connecting part.

Claims (1)

【実用新案登録請求の範囲】 (1) 箱の長手側壁部３，５と幅側壁部２，４とを
折曲自在な連接部Ａ，Ｂ，Ｃ，Ｊを介して交互
に連接させて折り畳み可能とした角筒状の周壁
部６と、該周壁部６の上縁を巡る様に折曲自在
な連接部を介して延設され箱の長さ方向に沿う
長手側蓋片１１，１３と幅方向に沿う幅側蓋片
１０，１２とが折曲自在な連接部Ｆ，Ｇ，Ｈ，
Ｋを介して交互に連接された形態を備えてその
延設長さ寸法が箱の幅寸法の1/2に等しい蓋部
９と、前記周壁部６の下縁に折曲自在な連接部
Ｌ，Ｍ，Ｎ，Ｏを介して延設された底片部２３
〜２６とを備えてなり、且つ前記幅側蓋片１
０，１２にはその底辺を底辺とする台形切欠１
４，１５を設けると共に、各上縁の中央部に方
形切欠１６，１７を設け、此等両切欠１４，１
６及び１５，１７の間に形成された小台形部１
８，１９の上縁には夫々方形切欠内に突出する
突片２０，２０を一体形成し、且つ、前記小台
形部の両斜辺には夫々折り目Ｉを設け、前記幅
側壁部にはこの折り目に沿つて前記幅側蓋片の
内側面に折り重ねられた前記小台形部を嵌合さ
せるくり抜き穴７，８を設け、箱を開いた状態
で前記両長手側蓋片をその連接部を介して観音
扉状に閉ざすことによつて、前記幅側蓋片が前
記小台形部の折り目Ｉを境に台形に折り畳まれ
て蓋止め片部２９，２９が形成され、この蓋止
め片部を前記幅側壁部の外側面に沿わせる様に
折り曲げたうえ前記小台形部を前記くり抜き穴
に嵌合させ且つ前記突片を前記くり抜き穴の口
縁に掛合わせることによつて蓋閉じ状態を固定
させる様に構成したことを特徴とする折り畳み
式段ボール箱。 (2) 前記小台形部１８，１９の底縁にも、前記く
り抜き穴７，８の口縁に掛合させる突片３０，
３０を夫々一体形成したことを特徴とする請求
項(1)項記載の折り畳み式段ボール箱。 (3) 前記幅側壁部２，４及び前記幅側蓋片１０，
１２に、夫々手掛け穴２７，２７を設けたこと
を特徴とする請求項(1)項又は(2)項記載の折り畳
み式段ボール箱。 (4) 前記底片部２３〜２６を、前記蓋部９と同一
の構成としたことを特徴とする請求項(1)項〜(3)
項のいずれかに記載の折り畳み式段ボール箱。[Scope of Claim for Utility Model Registration] (1) Long side walls 3, 5 and width side walls 2, 4 of the box are alternately connected via bendable connecting parts A, B, C, J and folded. a rectangular cylindrical peripheral wall portion 6, and longitudinal side lid pieces 11, 13 extending along the length direction of the box through bendable connecting portions so as to go around the upper edge of the peripheral wall portion 6; Connecting parts F, G, H, which can be bent freely with the width side lid pieces 10, 12 along the width direction,
Lid portions 9 are alternately connected via K and have an extended length equal to 1/2 of the width of the box, and a connecting portion L that is bendable at the lower edge of the peripheral wall portion 6. , M, N, and O.
-26, and the width side cover piece 1
0 and 12 have trapezoidal notches 1 whose bases are the bases.
4 and 15 are provided, and rectangular notches 16 and 17 are provided in the center of each upper edge, and both of these notches 14 and 1 are provided.
6 and a small trapezoidal part 1 formed between 15 and 17
Projections 20 and 20 protruding into the rectangular notches are integrally formed on the upper edges of 8 and 19, respectively, and creases I are provided on both oblique sides of the small trapezoidal portion, and the width side walls have these creases. Hollow holes 7 and 8 are provided in the inner surface of the width side lid piece to fit the folded small trapezoidal parts along the width side lid piece, and when the box is opened, both the longitudinal side lid pieces are inserted through the connecting parts. By closing it in a double-door shape, the width side lid piece is folded into a trapezoid along the crease I of the small trapezoidal part to form lid stopper pieces 29, 29. The closed state of the lid is fixed by bending it along the outer surface of the width side wall portion, fitting the small trapezoidal portion into the hollow hole, and engaging the protruding piece with the edge of the hollow hole. A foldable cardboard box characterized by being configured in the following manner. (2) The bottom edges of the small trapezoidal parts 18 and 19 are also provided with projecting pieces 30 that engage with the mouth edges of the hollow holes 7 and 8,
30. The foldable cardboard box according to claim 1, wherein each of the foldable cardboard boxes is integrally formed. (3) the width side wall parts 2, 4 and the width side cover piece 10,
12. A foldable corrugated cardboard box according to claim 1 or 2, characterized in that handle holes 27 and 27 are provided in each of the folding boxes 12 and 12, respectively. (4) Claims (1) to (3) characterized in that the bottom pieces 23 to 26 have the same structure as the lid part 9.
A folding cardboard box as described in any of the above.