JPS63242632A - Manufacture of built-up packaging box - Google Patents
Manufacture of built-up packaging boxInfo
- Publication number
- JPS63242632A JPS63242632A JP62075983A JP7598387A JPS63242632A JP S63242632 A JPS63242632 A JP S63242632A JP 62075983 A JP62075983 A JP 62075983A JP 7598387 A JP7598387 A JP 7598387A JP S63242632 A JPS63242632 A JP S63242632A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- foamed synthetic
- resin sheet
- pieces
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004806 packaging method and process Methods 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 229920003002 synthetic resin Polymers 0.000 claims description 42
- 239000000057 synthetic resin Substances 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 25
- 239000010410 layer Substances 0.000 claims description 24
- 239000011087 paperboard Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 12
- 239000012790 adhesive layer Substances 0.000 claims description 10
- 238000007666 vacuum forming Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 description 10
- 238000005520 cutting process Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Cartons (AREA)
- Making Paper Articles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
本発明は、板紙の片面側に発泡合成樹脂シートを積層し
た複合シートを用いて箱を組立てたとき、三重になって
接合する側板片と折込み片の相対向した重合部分の発泡
合成樹脂シート層を他の部分の発泡合成樹脂シート層よ
り薄く形成することができる組立て包装箱の製造方法に
関する。The present invention provides that when a box is assembled using a composite sheet in which a foamed synthetic resin sheet is laminated on one side of a paperboard, the foamed synthetic resin sheet layer is formed in the facing overlapped portions of the side plate pieces and the folded pieces that are joined in triple layers. The present invention relates to a method for manufacturing an assembled packaging box in which the foamed synthetic resin sheet layer can be formed thinner than other parts of the foamed synthetic resin sheet layer.
板紙の片面側に発泡合成樹脂シートが積層されている複
合シートを用い、発泡合成樹脂シート側に設けた膨出部
の内面と板紙との間に空気室を形成し、この複合シート
をヒンジ部により折曲げて箱状に組立てることができる
組立て箱は従来公知（−例として、実開昭５９−１５５
９７２号公報。
特開昭６０−２４２０４０号公報を参照）である。Using a composite sheet in which a foamed synthetic resin sheet is laminated on one side of a paperboard, an air chamber is formed between the inner surface of the bulge provided on the foamed synthetic resin sheet side and the paperboard, and this composite sheet is attached to the hinge section. An assembly box that can be folded and assembled into a box shape is conventionally known (for example,
Publication No. 972. (See Japanese Patent Application Laid-Open No. 60-242040).
上記公知の組立て箱は、隣り合った側板片の一方の側板
片に折込み片を連設し、複合シートを箱状に組立てたと
きに折込み片が他方の側板片上に内接して折込まれるよ
うに構成されており、組立てられた箱の各自（コーナー
）部は強度が弱く、保形性や断熱性に欠けている。
そこで１本発明者は上記公知のものと同様な複合シート
を用い、箱を組立てたときに各角部が三重になって接合
し、また、箱の内面となる総ての部分に空気室を形成で
きる膨出部を設けて、強度及び断熱性の優れた組立て箱
を開発した。 この開発された組立て包装箱は、第７図
及び第８図に示すごとく四角形である底板１の各辺に側
板片２〜５が、これら側板片のうちの相対向した一方の
組の側板片２，４にはその上側辺に相対向した先端部側
が互いに重ね合いできる大きさに形成された蓋板片６，
７が、また相対向した他方の組の側板片３，５にはその
上側辺に上面折込み片８，９がそれぞれヒンジ部１０，
１１．１２を介して連設されている一方、隣り合った側
板片２と３．３と４．４と５及び５と２の側辺間に二つ
折り自在であるである内側折込み片１３〜１６がヒンジ
部１７を介して連設されているシート材ａを、板紙すの
片面側に接着剤層ｄを介して発泡合成樹脂シートＣが積
層された複合材により形成し、このシート材ａの底板１
を含めた各構成片上には、内側折込み片１３〜１６が二
つ折りされて重合する側板片２，４の部分２ａ、４ａ及
び該部分２ａ、４ａと接合する内側折込み片１３〜１６
の片側部分１３ａ〜１６ａを除いて、発泡合成樹脂シー
トＣ側を膨出させて形成した膨出部１８をそれぞれ設け
、これら膨出部１８の内面と板紙ａとの間に空気室１９
を形成した構造である。
この組立て包装箱を各ヒンジ部１０〜１２及び１７によ
って折曲げて箱状に組立てると、内側折込み片１３〜１
６が二つ折りされて隣り合った側板片のうちの一方の側
板片２．４上に重合し、その重合部分、即ち箱の各角部
は三重となる（第９図参照）、 このように重合部分
が三重になると、シート材ａは複合構造であるから重合
部分が嵩張って折曲げにくく、しかも、箱の形状が損な
われて商品価値が低下するという問題のあることが判っ
た。In the above-mentioned known assembly box, a folding piece is provided in a row on one side plate piece of the adjacent side plate pieces, so that when the composite sheet is assembled into a box shape, the folding piece is inscribed on the other side plate piece and folded. Each corner of the assembled box has weak strength and lacks shape retention and heat insulation. Therefore, the present inventor used a composite sheet similar to the above-mentioned known one, and when the box was assembled, each corner was joined in three layers, and air chambers were formed in all parts that would become the inner surface of the box. We have developed an assembly box with excellent strength and heat insulation by providing a bulge that can be formed. As shown in FIGS. 7 and 8, this developed assembly packaging box has side plate pieces 2 to 5 on each side of a rectangular bottom plate 1, and side plate pieces 2 to 5 of one pair of side plate pieces facing each other among these side plate pieces. 2 and 4 have lid plate pieces 6 formed in such a size that their distal ends opposite to each other can be stacked on top of each other;
7, and the side plate pieces 3 and 5 of the other set opposite to each other have upper surface folding pieces 8 and 9 on their upper sides, respectively, with hinge parts 10 and 5.
11. Inner folding pieces 13 to 12 are connected to each other via 12, and can be folded in half between adjacent side plate pieces 2, 3.3, 4.4, and 5, and 5 and 2. 16 are connected via a hinge part 17, the sheet material a is formed of a composite material in which a foamed synthetic resin sheet C is laminated on one side of a paperboard via an adhesive layer d, and this sheet material a bottom plate 1
On each of the constituent pieces including the inner folding pieces 13 to 16 are folded in half and overlapped parts 2a and 4a of the side plate pieces 2 and 4, and inner folding pieces 13 to 16 joined to the parts 2a and 4a.
Except for one side portions 13a to 16a, bulging portions 18 formed by bulging the foamed synthetic resin sheet C side are provided, and an air chamber 19 is provided between the inner surface of these bulging portions 18 and the paperboard a.
This is the structure that formed the . When this assembled packaging box is assembled into a box shape by folding at each hinge part 10 to 12 and 17, inner folding pieces 13 to 1
6 is folded in half and superimposed on one of the adjacent side plate pieces 2.4, and the overlapped part, that is, each corner of the box becomes triple (see Figure 9), like this. It has been found that when the overlapped portion becomes triple-layered, the overlapped portion becomes bulky and difficult to bend because sheet material a has a composite structure, and furthermore, the shape of the box is impaired, resulting in a decrease in commercial value.
本発明は上記の点に鑑みてなされたものであって、その
目的は板紙の片面側に発泡合成樹脂シートが積層され、
発泡合成樹脂シート側に設けた膨出部の内面と板紙との
間に空気室を形成したシート材を用い、このシート材を
折曲げて箱状に組立てたときに、三重の状態で重なり合
う箱の角部分の相対向した重合部分の発泡合成樹脂シー
ト層を他の部分の発泡合成樹脂シート層より薄く形成し
、箱を組立てるときの折曲げ操作が容易にできることは
勿論のこと、保形性や断熱性等に優れた組立て包装箱の
製造方法を提供することある。
しかして、本発明の上記目的は片面側に接着剤層を有す
る発泡合成樹脂シート上には、箱の組立に必要である底
板、この底板の各辺に連設された側板片、これら側板片
の隣り合った側板片間に連設された折込み片等の部材に
相当する部分に対応させて、真空成形法を用いて膨出部
をそれぞれ形成し、この膨出部の成形段階で上記発泡合
成樹脂シートの接着剤層側に板紙を積層して、上記各膨
出部の内面と板紙との間に空気室を設けたシート材を形
成する段階で、該シート材が成形後に裁断されて得られ
た箱の成形生地を箱状に組立てたときに、上記折込み片
が二つ折りされて隣り合った側板片の一方の側板片と重
なり合う部分に存在する発泡合成樹脂シート層を加熱圧
縮し、該部分の発泡合成樹脂シート層を他の部分の発泡
合成樹脂シート層より薄く形成するようにした組立て包
装箱の製造方法により達成される。The present invention has been made in view of the above points, and its purpose is to laminate a foamed synthetic resin sheet on one side of paperboard,
A sheet material with an air chamber formed between the inner surface of the bulge provided on the foamed synthetic resin sheet side and the paperboard is used, and when this sheet material is folded and assembled into a box shape, the box overlaps in a triple-layered state. The foamed synthetic resin sheet layer in the opposing polymerized parts of the corners of the box is formed thinner than the foamed synthetic resin sheet layer in other parts, which not only facilitates the folding operation when assembling the box, but also improves shape retention. There is also provided a method for manufacturing an assembled packaging box having excellent heat insulation properties and the like. The above object of the present invention is to provide a base plate necessary for assembling the box, side plate pieces connected to each side of the bottom plate, and these side plate pieces on a foamed synthetic resin sheet having an adhesive layer on one side. A bulging portion is formed using a vacuum forming method to correspond to a part corresponding to a member such as a folding piece that is connected between adjacent side plate pieces, and the above-mentioned foaming At the stage of laminating paperboard on the adhesive layer side of the synthetic resin sheet to form a sheet material in which an air chamber is provided between the inner surface of each bulge and the paperboard, the sheet material is cut after being formed. When the formed fabric of the obtained box is assembled into a box shape, the foamed synthetic resin sheet layer present in the portion where the folded piece is folded in half and overlaps one of the adjacent side plate pieces is heated and compressed, This is achieved by a method for manufacturing an assembled packaging box in which the foamed synthetic resin sheet layer in this portion is formed thinner than the foamed synthetic resin sheet layer in other portions.
本発明製造方法に用いるシート材ａは、第８図に示す如
く接着剤層ｄを介して板紙すの片面側に発泡合成樹脂シ
ートＣを積層した複合構造である。
このシート材ａを形成するに先立って、第１図に示す如
く箱の組立てに必要である底板２１、この底板２１の各
辺に連設された側板片２２〜２５、これら側板片２２〜
２５のうちの隣り合った側板片間にそれぞれ連設された
折込み片（内側折込み片）２６〜２９等の部材に相当す
る部分に対応させて、接着剤層ｄが積層されている発泡
合成樹脂シートＣ上に真空成形法を用いて膨出部３１を
設ける段階で、上記折込み片２６〜２９が二つ折りされ
て隣り合った側板片のうちの一方の側板片と重なり合う
部分３１ａを加熱圧縮し、この成形時に発泡合成樹脂シ
ートＣと板紙すを積層状態に接着して、上記各膨出部３
１の内面と板紙すとの間に空気室３２（第８図参照）を
形成する６ 次いで、上記のように形成されたシート材
ａを冷却し。
このシート材ａ上には、底板２１と各側板片２２〜２５
との間及び各側板片２２〜２５と各折込み片２６〜２９
との間に相当する部分に、後述する刃を用いてヒンジ部
３３．３４となる切込みを設ける一方、該シート材ａを
裁断して、上記折込み片２６〜２９が二つ折りされて隣
り合った一方の側板片２２．２４と重合する部分に存在
する発泡合成樹脂シートＭ２２ ａ 、 ２４ ａ 、
２６ ａ 〜２９ａを他の部分の発泡合成樹脂シート
層より２〜３閣程度薄く形成した箱の展開形状である成
形生地５０を製造する（第２図参照）、 なお、第２図
には相対向した一方の組の側板片２２．２４にヒンジ部
３５を介して蓋板片３６．３７がまた相対向した他方の
組の側板片２３，２５にヒンジ部３８を介して上面折込
み片３９．４１がそれぞれ連設されている箱の成形生地
５０が示されている。
図中、４２は折込み片２６〜２９の二つ折り部分に設け
た折り目である。
以上説明の製造方法において１箱の成形生地５０（即ち
組立て包装箱）を連続的に製造するには。
第３図に示す如く接着剤層ｄが予め積層されている発泡
合成樹脂シートＣの進行通路上に臨ませて、手前側（図
上左側）から加熱室６１．真空成形上金型６２と下金型
６３、冷却室６４及び裁断室６５を順次設置した製造装
置が用いられる。 この製造装置によれば、接着剤層ｄ
を下側にして進行する発泡合成樹脂シートＣは加熱室６
１を通過するときに加熱溶融し１次いで、真空成形上金
型６２によって発泡合成樹脂シートＣ上には前述した状
態で膨出部３１が賦形され、この成形時の段階で下金型
６３を上昇させ、該下金型６３上に積層されている板紙
すを１枚づつ接着剤層ｄを介して発泡合成樹脂シートＣ
に接着し、膨出部３１の内面と板紙すとの間に空気室３
２を形成すると共に。
発泡合成樹脂シートＣ層の一部が加熱圧縮されている複
合構造のシート材ａを形成する。 次に、シート材ａは
冷却室６４を通って裁断室６５に送られる。 この裁断
室６５には、進行してきたシート材ａを支持する受台６
６と該受台上に臨んで昇降自在な抑圧盤６７を設け、ま
た、抑圧盤６７には上記シート材ａ上にヒンジ部を設け
るための罫線（ヒンジ）刃６７ａ（第５図参照）及びシ
ート材ａを箱の展開形状に裁断するための抜き刃（図示
せず）を設けてあり、受台６６上にシート材ａが進行し
てきた時点で抑圧盤６７を下降させると、シート材ａを
所定の形状に裁断して箱の成形生地５０を製造できる。
しかして、前述した真空成形上金型６２は、第４図に示
す如く膨出部３１を賦形するための凹部６２ａと発泡合
成樹脂シートＣ層の一部を加熱圧縮するための加熱盤６
２ｂを備えており、加熱盤６２ｂは真空成形上金型６２
の下面より若干（１〜３閣程度）突出し、下金型６３が
上昇して該下金型６３上に積層されている板紙すが発泡
合成樹脂シートＣと接着するときに、加熱盤６２ｂによ
って発泡合成樹脂シートＣ層を部分的に加熱圧縮し、該
部分（第２図に示す発泡合成樹脂シート層２２ａ、２４
ａ、２６ａ〜２９ａ）の発泡合成樹脂シートＣ層の発泡
セルを押しつぶして、その圧縮部分を他の部分の発泡合
成樹脂シートＣ層より薄く形成する。The sheet material a used in the manufacturing method of the present invention has a composite structure in which a foamed synthetic resin sheet C is laminated on one side of a paperboard with an adhesive layer d interposed therebetween, as shown in FIG. Prior to forming this sheet material a, as shown in FIG.
A foamed synthetic resin on which an adhesive layer d is laminated in correspondence to the parts corresponding to the folding pieces (inner folding pieces) 26 to 29, etc., which are respectively arranged between adjacent side plate pieces of 25. At the stage of forming the bulging portion 31 on the sheet C using a vacuum forming method, the folded pieces 26 to 29 are folded in half and a portion 31a overlapping with one of the adjacent side plate pieces is heated and compressed. During this molding, the foamed synthetic resin sheet C and the paperboard are adhered in a laminated state to form each of the bulges 3.
An air chamber 32 (see FIG. 8) is formed between the inner surface of the sheet material 1 and the paperboard sheet 6. Next, the sheet material a formed as described above is cooled. On this sheet material a, there is a bottom plate 21 and each side plate piece 22 to 25.
and between each side plate piece 22 to 25 and each folding piece 26 to 29
Cut the sheet material a and cut the folded pieces 26 to 29 so that the folded pieces 26 to 29 are folded in half and placed next to each other. Foamed synthetic resin sheets M22 a , 24 a , which exist in the portion that overlaps with one side plate piece 22 , 24 ,
26a to 29a are formed to be about 2 to 3 times thinner than the other parts of the foamed synthetic resin sheet layer to produce a molded dough 50 in the developed shape of a box (see Figure 2). A lid plate piece 36.37 is attached to one set of side plate pieces 22, 24 facing each other via a hinge part 35, and a top folding piece 39. A box-formed dough 50 is shown in which each of the boxes 41 is arranged in a row. In the figure, 42 is a fold line provided in the bifold portion of the folding pieces 26 to 29. To continuously manufacture one box of molded dough 50 (namely, an assembled packaging box) using the manufacturing method described above. As shown in FIG. 3, the heating chamber 61. A manufacturing apparatus is used in which a vacuum forming upper mold 62, a lower mold 63, a cooling chamber 64, and a cutting chamber 65 are sequentially installed. According to this manufacturing apparatus, the adhesive layer d
The foamed synthetic resin sheet C that advances with the
1, the expanded portion 31 is formed on the foamed synthetic resin sheet C in the above-described state by the vacuum forming upper mold 62, and at this stage of molding, the lower mold 63 is raised, and the paperboard laminated on the lower mold 63 is applied one by one through the adhesive layer d to the foamed synthetic resin sheet C.
to form an air chamber 3 between the inner surface of the bulge 31 and the paperboard.
Along with forming 2. A sheet material a having a composite structure is formed by heating and compressing a portion of the foamed synthetic resin sheet C layer. Next, the sheet material a is sent to the cutting chamber 65 through the cooling chamber 64. In this cutting chamber 65, there is a pedestal 6 that supports the sheet material a that has advanced.
6 and a suppressing plate 67 that faces above the pedestal and can be raised and lowered freely, and the suppressing plate 67 has a ruled line (hinge) blade 67a (see FIG. 5) for providing a hinge portion on the sheet material a, and A punching blade (not shown) is provided for cutting the sheet material a into the unfolded shape of a box, and when the pressing plate 67 is lowered when the sheet material a has advanced onto the pedestal 66, the sheet material a The fabric 50 for forming a box can be manufactured by cutting the fabric into a predetermined shape. As shown in FIG. 4, the above-mentioned vacuum forming upper mold 62 has a recess 62a for shaping the bulging part 31 and a heating plate 6 for heating and compressing a part of the foamed synthetic resin sheet C layer.
2b, and the heating plate 62b is equipped with a vacuum forming upper mold 62.
The lower mold 63 protrudes slightly (about 1 to 3 degrees) from the lower surface, and when the lower mold 63 rises and adheres the paperboard layered on the lower mold 63 to the foamed synthetic resin sheet C, the heating plate 62b The foamed synthetic resin sheet layer C is partially heated and compressed to form the foamed synthetic resin sheet layers 22a and 24 shown in FIG.
The foamed cells of the foamed synthetic resin sheet C layer of a, 26a to 29a) are crushed to form the compressed portion thinner than the other portions of the foamed synthetic resin sheet C layer.
本発明は上記の如くであって、箱の組立て時に三重とな
って形成される角部分の相対向した内側の接合面部に存
在する発泡合成樹脂シート層の部分を該発泡合成樹脂シ
ートの成形時に加熱圧縮し、その圧縮部分を他の部分よ
り薄く（第５図及び第６図参照）形成したので、折曲げ
が容易であることは勿論のこと、重なり合った角部分は
薄くなって良好に密接し、体裁よく組立てできる包装箱
が得られる。 また、発泡合成樹脂シート層を部分的に
薄くする作業は、複合構造のシート材を形成する段階で
同時に行なうことができる製造工程上の利点があり、保
形性や断熱性、耐荷重性等に優れた包装箱を合理的に製
造できる効果がある。The present invention is as described above, and the portion of the foamed synthetic resin sheet layer existing at the opposing inner joining surfaces of the corner portions formed in triple layers when assembling the box is removed during molding of the foamed synthetic resin sheet. By heating and compressing, the compressed part is made thinner than the other parts (see Figures 5 and 6), so it is not only easy to bend, but also the overlapping corner parts are thinner and can be tightly closed. Thus, a packaging box that can be assembled in an attractive manner can be obtained. In addition, the process of partially thinning the foamed synthetic resin sheet layer has the advantage of being able to be carried out at the same time as forming the composite structure sheet material, which improves shape retention, heat insulation, load resistance, etc. This has the effect of making it possible to rationally manufacture packaging boxes of excellent quality.
第１図は真空成形されたシート材の平面図、第２図は本
発明方法により製造された成形生地の平面図、第３図は
本発明方法の実施に用いる製造装置の略示的説明図、第
４図は真空成形上金型の部分断面図、第５図は裁断室の
部分拡大図で裁断状態を示す図、第６図は本発明方法に
より製造された組立て包装箱を組立てたときの要部（角
部分）断面図、第７図は本発明方法により製造された成
形生地の比較例である組立て包装箱の展開図、第８図は
第７図Ａ−Ａ線断面図、第９図は第７図に示す組立て包
装箱を組立てたときの要部（角部分）断面図である。
図中、２１は底板、２２〜２５は側板片、２６〜２９は
折込み片、３１は膨出部、３１ａは重なり合う部分、３
２は空気室、２２ａ、２４ａ、２６ａ〜２９ａは薄く形
成された発泡合成樹脂シート層の部分、５０は成形生地
、ａはシート材、ｂは板紙、Ｃは発泡合成樹脂シート、
ｄは接着剤層である。FIG. 1 is a plan view of a vacuum-formed sheet material, FIG. 2 is a plan view of a formed dough produced by the method of the present invention, and FIG. 3 is a schematic explanatory diagram of the manufacturing apparatus used to carry out the method of the present invention. , Fig. 4 is a partial cross-sectional view of the upper mold for vacuum forming, Fig. 5 is a partially enlarged view of the cutting chamber showing the cutting state, and Fig. 6 is an assembled packaging box manufactured by the method of the present invention. FIG. 7 is a developed view of an assembled packaging box which is a comparative example of the molded dough produced by the method of the present invention, and FIG. 8 is a cross-sectional view taken along the line A-A in FIG. FIG. 9 is a sectional view of the main part (corner part) when the assembled packaging box shown in FIG. 7 is assembled. In the figure, 21 is a bottom plate, 22 to 25 are side plate pieces, 26 to 29 are folded pieces, 31 is a bulge, 31a is an overlapping part, 3
2 is an air chamber, 22a, 24a, 26a to 29a are parts of a thinly formed foamed synthetic resin sheet layer, 50 is a molded dough, a is a sheet material, b is paperboard, C is a foamed synthetic resin sheet,
d is an adhesive layer.
Claims (1)
箱の組立に必要である底板、この底板の各辺に連設され
た側板片、これら側板片の隣り合った側板片間に連設さ
れた折込み片等の部材に相当する部分に対応させて、真
空成形法を用いて膨出部をそれぞれ形成し、この膨出部
の成形時に上記発泡合成樹脂シートの接着剤層側に板紙
を積層して、上記各膨出部の内面と板紙との間に空気室
を設けたシート材を形成する段階で、該シート材が成形
後に裁断されて得られた箱の成形生地を箱状に組立てた
ときに、上記折込み片が二つ折りされて隣り合った側板
片の一方の側板片と重なり合う部分に存在する発泡合成
樹脂シート層を加熱圧縮し、該部分の発泡合成樹脂シー
ト層を他の部分の発泡合成樹脂シート層より薄く形成す
ることを特徴とする組立て包装箱の製造方法。On a foamed synthetic resin sheet with an adhesive layer on one side,
Corresponding to the parts necessary for assembling the box, such as the bottom plate, the side plate pieces continuous to each side of this bottom plate, and the folding pieces continuous between the adjacent side plate pieces. , each bulge is formed using a vacuum forming method, and when forming the bulge, paperboard is laminated on the adhesive layer side of the foamed synthetic resin sheet to form a bond between the inner surface of each bulge and the paperboard. At the stage of forming a sheet material with an air chamber between them, when the sheet material is cut after being formed and the resulting box fabric is assembled into a box shape, the above-mentioned folded pieces are folded in half and placed next to each other. The foamed synthetic resin sheet layer existing in the portion of the side plate pieces overlapping with one of the side plate pieces is heated and compressed to form the foamed synthetic resin sheet layer in this portion thinner than the foamed synthetic resin sheet layer in the other portion. A method for manufacturing assembled packaging boxes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62075983A JPS63242632A (en) | 1987-03-31 | 1987-03-31 | Manufacture of built-up packaging box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62075983A JPS63242632A (en) | 1987-03-31 | 1987-03-31 | Manufacture of built-up packaging box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63242632A true JPS63242632A (en) | 1988-10-07 |
Family
ID=13592007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62075983A Pending JPS63242632A (en) | 1987-03-31 | 1987-03-31 | Manufacture of built-up packaging box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63242632A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009202882A (en) * | 2008-02-26 | 2009-09-10 | Rengo Co Ltd | Simple assembly type corrugated fiberboard box |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS519154A (en) * | 1974-07-12 | 1976-01-24 | Jingo Seto | |
| JPS6213817U (en) * | 1985-07-12 | 1987-01-27 |
-
1987
- 1987-03-31 JP JP62075983A patent/JPS63242632A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS519154A (en) * | 1974-07-12 | 1976-01-24 | Jingo Seto | |
| JPS6213817U (en) * | 1985-07-12 | 1987-01-27 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009202882A (en) * | 2008-02-26 | 2009-09-10 | Rengo Co Ltd | Simple assembly type corrugated fiberboard box |
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