JP7282505B2 - paper container with flange - Google Patents

paper container with flange Download PDF

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JP7282505B2
JP7282505B2 JP2018215001A JP2018215001A JP7282505B2 JP 7282505 B2 JP7282505 B2 JP 7282505B2 JP 2018215001 A JP2018215001 A JP 2018215001A JP 2018215001 A JP2018215001 A JP 2018215001A JP 7282505 B2 JP7282505 B2 JP 7282505B2
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plate
folding
side plate
edge
folded
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JP2020083326A (en
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政博 浜村
裕一 内藤
有理 大石
聡美 早川
啓一 大盛
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Nippon Paper Industries Co Ltd
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Nippon Paper Industries Co Ltd
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Description

本発明は、粉末状或いは液体状の食品などを充填した後に蓋体で熱接着して封緘するフランジ付き紙容器に関する。 TECHNICAL FIELD The present invention relates to a flanged paper container that is filled with powdery or liquid food or the like and then sealed by thermal bonding with a lid.

従来、粉末状或いは液体状の食品などを充填した後に蓋体で熱接着して封緘するフランジ付き紙容器として、方形の底面板１００の相対向する二辺に、それぞれ谷折線を介して側面板１０１が連設され、側面板１０１の外周に、山折線を介して縁片１０２が連設され、縁片１０２の左右端に、それぞれ横方向に延びる舌片１０３が設けられ、側面板１０１の左右端に、それぞれ谷折線を介して逆三角形状の折込接合板１０４が連設され、折込接合板１０４の外周には、山折り線を介して接合縁片１０５が連設され、底面板１００の相対向する二辺に、それぞれ谷折線を介して第２側面板１０６が連設され、第２側面板１０６の外周に、山折線を介して第２縁片１０７が連設され、第２縁片１０７の左右端に、それぞれ横方向に延びる第２舌片１０８が設けられ、第２側面板１０６の左右端に、それぞれ山折線を介して逆三角形状の第２折込接合板１０９が連設され、折込接合板１０４の側面板１０１と連設していない方の端縁と、第２折込接合板１０９の第２側面板１０６と連設していない方の端縁とは、谷折線を介して連設されるとともに、各側面板１０１，１０６を折り曲げてトレー状に組み立てた際、縁片１０２、第２縁片１０７、接合縁片１０５がそれぞれ同一平面を形成するように設定されているトレー容器用ブランクであって、各隅角の第２舌片１０８と第２折込接合板１０９が接する近傍の第２舌片１０８の端縁に第２折込接合板１０９側に突出する小突起１１０が設けられているトレー容器用ブランク（図６参照。）により成形されたフランジ付き紙容器がある（例えば、特許文献１参照。）。 Conventionally, as a flanged paper container that is filled with powdered or liquid food or the like and then sealed by thermal bonding with a lid body, side plates are attached to two opposite sides of a square bottom plate 100 with valley fold lines, respectively. An edge piece 102 is continuously provided on the outer periphery of the side plate 101 via a mountain fold line, and laterally extending tongue pieces 103 are provided at the left and right ends of the edge piece 102, respectively. Inverted triangular folded joint plates 104 are provided continuously at the left and right ends via valley fold lines, respectively, and joint edge pieces 105 are continuously provided on the outer periphery of the folded joint plates 104 via mountain fold lines. A second side plate 106 is connected to each of the two sides facing each other via a valley fold line, and a second edge piece 107 is connected to the outer periphery of the second side plate 106 via a mountain fold line. A second tongue piece 108 extending in the horizontal direction is provided on each of the left and right ends of the edge piece 107, and a second folded joint plate 109 in the shape of an inverted triangle is connected to each of the left and right ends of the second side plate 106 via a mountain fold line. The edge of the folded joint plate 104 that is not connected to the side plate 101 and the edge of the second folded joint plate 109 that is not connected to the second side plate 106 are aligned with the valley fold line When the side plates 101 and 106 are folded and assembled into a tray shape, the edge piece 102, the second edge piece 107, and the joint edge piece 105 are set to form the same plane. In the blank for a tray container, a small protrusion protruding toward the second folding joint plate 109 is provided at the edge of the second tongue piece 108 in the vicinity of the corner where the second tongue piece 108 and the second folding joint plate 109 contact each other. There is a flanged paper container formed from a tray container blank (see FIG. 6) provided with projections 110 (see, for example, Patent Document 1).

特許文献１に記載のフランジ付き紙容器では、成形されたフランジ付き紙容器に蓋体を被せて密封した際に、隅角の側面板１０１と折込接合板１０４と第２折込接合板１０９と第２側面板１０６との交点で、縁片１０２の舌片１０３と第２縁片１０７の第２舌片１０８が重なる部分に針先程度の微細な孔があくという問題を解決するために、各隅角の第２舌片１０８と第２折込接合板１０９が接する近傍の第２舌片１０８の端縁に第２折込接合板１０９側に突出する小突起１１０を設けることにより、小突起１１０により交点を覆い、縁片１０２の舌片１０３と第２縁片１０７の第２舌片１０８が重なる部分に針先程度の微細な孔の発生がなくなるとしている。 In the flanged paper container described in Patent Document 1, when the formed flanged paper container is covered with the lid and sealed, the side plate 101 at the corner, the folded joint plate 104, the second folded joint plate 109, and the second folded joint plate 109 are formed. In order to solve the problem that a fine hole of the size of a needle is formed in the overlapping portion of the tongue 103 of the edge 102 and the second tongue 108 of the second edge 107 at the intersection with the two side plates 106, each By providing a small projection 110 protruding toward the second folding joint plate 109 on the edge of the second tongue piece 108 in the vicinity where the second corner tongue 108 and the second folding joint plate 109 contact, the small projection 110 It is assumed that the overlapped portion of the tongue 103 of the edge piece 102 and the second tongue piece 108 of the second edge piece 107 will not have a fine hole of the size of the tip of the needle.

特開２０００－２５５５４６号公報JP-A-2000-255546

特許文献１に記載されているトレー容器用ブランクで形成されたフランジ付き紙容器では、側面板１０１の左右端に連設された折込接合板１０４を谷折りし、第２側面板１０６に連設された第２折込接合板１０９を山折りして重ね、そして、側面板１０１の外周に連設された縁片１０２及び第２側面板１０６の外周に連設された第２縁片１０７を山折りして、縁片１０２の舌片１０３と第２縁片１０７の第２舌片１０８を重ねたとき、第２舌片１０８の端縁に設けた小突起１１０が、側面板１０１と折込接合板１０４と第２折込接合板１０９と第２側面板１０６との交点を覆う。 In the paper container with a flange formed of a tray container blank described in Patent Document 1, folding joint plates 104 connected to the left and right ends of the side plate 101 are valley-folded and connected to the second side plate 106. The second folded joining plate 109 is mountain-folded and overlapped, and the edge piece 102 connected to the outer periphery of the side plate 101 and the second edge piece 107 connected to the outer periphery of the second side plate 106 are mountain-folded. When the tongue 103 of the edge piece 102 and the second tongue piece 108 of the second edge piece 107 are folded and overlapped, the small projection 110 provided on the edge of the second tongue piece 108 is folded and joined to the side plate 101. The intersections of the plate 104, the second folding joint plate 109 and the second side plate 106 are covered.

この交点を覆う小突起１１０は、側面板１０１の内面と側面板１０１の外周に連設された縁片１０２の外面に重ねて覆うようになっているので、小突起１１０に側面板１０１の内面との間で谷折りし、縁片１０２との間で山折りすることになり、小突起１１０に山折り、谷折りといった互いに相反する折り曲げ応力が生じることになる。しかも小突起１１０は小片であるので、小突起１１０を適切な位置で谷折り、山折りすることは容易ではなく、僅かな力加減で山折り、谷折りの位置がずれ、小突起１１０により交点を覆うことができなくなる場合があるといった問題がある。 The small projections 110 that cover these intersections overlap the inner surface of the side plate 101 and the outer surface of the edge piece 102 connected to the outer periphery of the side plate 101 . and a mountain fold with the edge piece 102 , so that mutually contradictory bending stresses such as mountain fold and valley fold are generated in the small projection 110 . Moreover, since the small protrusions 110 are small pieces, it is not easy to fold the small protrusions 110 into valley folds or mountain folds at appropriate positions. There is a problem that it may not be possible to cover the

本発明の目的は、粉末状或いは液体状の食品などが漏れ難くまた、外気との接触もし難く、さらには製造が容易なフランジ付き紙容器を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a paper container with a flange that prevents powdery or liquid food from leaking, hardly comes into contact with the outside air, and is easy to manufacture.

上記の目的を達成するために、請求項１に記載の発明は、少なくとも容器の内面となる側に熱可塑性樹脂層が積層された紙基材からなり、矩形状の底面板の相対向する二辺にそれぞれ第１折線を介して第１側面板が設けられ、前記底面板の他の相対向する二辺にそれぞれ第２折線を介して第２側面板が設けられ、前記第１側面板の外端縁に第３折線を介して第１フランジ板が設けられ、前記第２側面板の外端縁に第４折線を介して第２フランジ板が設けられ、隣り合う第１側面板と第２側面板の側端縁の間には、両側端縁にそれぞれ第５折線、第６折線を介して連結するとともに中央で第７折線を介して折り畳み自在に互いに連結する逆三角形の第１折込接合板と第２折込接合板が設けられ、前記第１折込接合板の外縁に第８折線を介してフランジ接合片が設けられ、前記第１フランジ板の両端には第１突出片が設けられ、前記第２フランジ板の両端に第２突出片が設けられたブランクを、前記第１折線、第２折線を谷折りして第１側面板、第２側面板を立ち上げるとともに、第７折線を谷折りして第１折込接合板と第２折込接合板を重ね合わせ、重ね合わせた箇所を接着し、前記第５折線を谷折りし、前記第６折線を山折りして、重ね合わせた前記第１折込接合板、第２折込接合板を前記第２側面板の外面に重ね合わせるとともに、前記フランジ接合片および前記第１突出片を、前記第２突出片を含む前記第２フランジ板の外側に位置するように重ね合わせ、重ね合わせた箇所を接着し、第３折線、第４折線を山折りして前記第１フランジ板、第２フランジ板を横方向に倒して組み立てられるフランジ付き紙容器であって、前記第１突出片の突端から前記第１側面板に向かう縁端が前記第５折線の近傍で前記第１折込接合板の外縁と繋がり、前記第２突出片の突端から前記第２側面板に向かう縁端が前記第６折線の近傍で前記第２折込接合板の外縁と繋がっており、前記第１突出片の突端から前記第１側面板に向かう前記縁端と前記第５折線との間および 前記第２突出片の突端から前記第２側面板に向かう前記縁端と前記第６折線との間の長さは、１ｍｍ以上、３ｍｍ以下であることを特徴とする。 In order to achieve the above object, the invention according to claim 1 consists of a paper substrate with a thermoplastic resin layer laminated at least on the inner surface of the container, and has two rectangular bottom plates facing each other. A first side plate is provided on each side through a first fold line, and a second side plate is provided on each of the other two opposite sides of the bottom plate through a second fold line. A first flange plate is provided on the outer edge via a third fold line, and a second flange plate is provided on the outer edge of the second side plate via a fourth fold line. Between the side edges of the two side plates, a first fold of an inverted triangle is connected to both side edges via a fifth fold line and a sixth fold line, respectively, and is foldably connected to each other via a seventh fold line at the center. A joining plate and a second folding joining plate are provided, a flange joining piece is provided on the outer edge of the first folding joining plate via an eighth folding line, and first projecting pieces are provided on both ends of the first flange plate. , the blank provided with the second projecting pieces at both ends of the second flange plate is valley-folded along the first and second folding lines to raise the first and second side plates, and the seventh folding line are folded, the first folding joint plate and the second folding joint plate are overlapped, the overlapping parts are glued, the fifth folding line is valley-folded, the sixth folding line is mountain-folded, and overlapped The first folded joint plate and the second folded joint plate are superimposed on the outer surface of the second side plate, and the flange joint piece and the first projecting piece are attached to the second flange plate including the second projecting piece. Flanged paper that is assembled by stacking so as to be positioned on the outside, bonding the stacked portions, mountain-folding the third and fourth folding lines, and laying down the first flange plate and the second flange plate in the horizontal direction. In the container, the edge from the tip of the first projecting piece toward the first side plate is connected to the outer edge of the first folding joint plate near the fifth folding line, and the tip of the second projecting piece is connected to the edge of the first side plate. The edge toward the second side plate is connected to the outer edge of the second folding joint plate in the vicinity of the sixth folding line, and the edge toward the first side plate from the tip of the first projecting piece and the first side plate The length between the 5-fold line and between the edge from the tip of the second protruding piece toward the second side plate and the 6-fold line is 1 mm or more and 3 mm or less.

請求項１に記載の発明によれば、前記第１突出片の突端から前記第１側面板に向かう縁端が前記第５折線の近傍で前記第１折込接合板の外縁と繋がり、前記第２突出片の突端から前記第２側面板に向かう縁端が前記第６折線の近傍で前記第２折込接合板の外縁と繋がっているので、前記第１突出片の突端から前記第１側面板に向かう縁端と前記第５折線との間における前記第１突出片と前記第１折込接合板とが連接し、前記第２突出片の突端から前記第２側面板に向かう縁端と前記第６折線との間における前記第２突出片と前記第２折込接合板とが連接した状態にある。
これにより、前記第５折線を谷折りし前記第６折線を山折りして重ね合わせた前記第１折込接合板、第２折込接合板を、前記第２側面板の外面に重ね合わせたとき、前記第１突出片の前記縁端と前記第５折線との間にある前記第１折込接合板の一部が谷折りした前記第５折線に沿って谷折り方向へ弾性変形し、そして、前記第２突出片の前記縁端と前記第６折線との間ある前記第２折込接合板の一部が山折りした前記第６折線に沿って山折り方向へ弾性変形して互いに強く密着した状態で重なり合うので、重ね合わせた前記第１折込接合板と前記第２折込接合板との隙間を無くすことができる。
さらに、前記フランジ接合片および前記第１突出片を、前記第２突出片を含む前記第２フランジ板の外側に位置するように重ね合わせた状態で、前記第３折線、前記第４折線を山折りして前記第１フランジ板、第２フランジ板を横方向に倒したとき、前記第１突出片の前記縁端と前記第５折線との間にある前記第１突出片と前記第１折込接合板との連接部位と、前記第２突出片の前記縁端と前記第６折線との間にある前記第２突出片と前記第２折込接合板との連接部位とが弾性変形し、前記第１突出片の前記縁端と前記第２突出片の前記縁端とが互いに強く密着した状態で重なり合うので、前記第１突出片の前記縁端と前記第２突出片の前記縁端との隙間を無くすことができる。
そして、前記第１突出片の突端から前記第１側面板に向かう前記縁端と前記第５折線との間および 前記第２突出片の突端から前記第２側面板に向かう前記縁端と前記第６折線との間の長さは、１ｍｍ以上、３ｍｍ以下であるので、重ね合わせた前記第１折込接合板と前記第２折込接合板との隙間および前記第１突出片の前記縁端と前記第２突出片の前記縁端との隙間をより効果的に無くすことができる。
このように、重ね合わせた前記第１折込接合板と前記第２折込接合板との隙間および前記第１突出片の前記縁端と前記第２突出片の前記縁端との隙間を無くすことができるので、粉末状或いは液体状の食品などが漏れ難くまた、外気との接触もし難いものとなる。 According to the invention of claim 1, the edge from the tip of the first projecting piece toward the first side plate is connected to the outer edge of the first folding joint plate in the vicinity of the fifth folding line, and the second Since the edge from the tip of the protruding piece toward the second side plate is connected to the outer edge of the second folding joint plate in the vicinity of the sixth folding line, the tip of the first protruding piece can move from the tip of the first side plate to the first side plate. The first projecting piece and the first folding joining plate are connected between the facing edge and the fifth folding line, and the edge extending from the tip of the second projecting piece toward the second side plate and the sixth The second protruding piece and the second folding joint plate are connected to each other between the folding lines.
As a result, when the first folded joint plate and the second folded joint plate, which are formed by folding the fifth folding line into the valley and folding the sixth folding line into the mountain and superimposing them, on the outer surface of the second side plate, A portion of the first folding joint plate between the edge of the first projecting piece and the fifth folding line is elastically deformed in the valley-folding direction along the fifth folding line, and A state in which a part of the second folding joining plate between the edge of the second protruding piece and the sixth folding line is elastically deformed in a mountain folding direction along the mountain folding line, and is strongly attached to each other. , the gap between the first folded joint plate and the second folded joint plate can be eliminated.
Furthermore, the flange joint piece and the first protruding piece are overlapped so as to be positioned outside the second flange plate including the second protruding piece, and the third folding line and the fourth folding line are folded into a mountain. When the first flange plate and the second flange plate are folded and laid down in the horizontal direction, the first projecting piece and the first fold are located between the edge of the first projecting piece and the fifth folding line. A connecting portion with the joining plate and a connecting portion between the second projecting piece and the second folding joining plate located between the edge of the second projecting piece and the sixth folding line are elastically deformed, Since the edge of the first projecting piece and the edge of the second projecting piece overlap each other in a tightly adhered state, the edge of the first projecting piece and the edge of the second projecting piece overlap. You can eliminate gaps.
Between the edge extending from the tip of the first protruding piece to the first side plate and the fifth folding line, and between the edge extending from the tip of the second protruding piece to the second side plate and the second side plate Since the length between the 6 fold lines is 1 mm or more and 3 mm or less, the gap between the first folded joint plate and the second folded joint plate that are superimposed and the edge of the first projecting piece and the The gap between the edge of the second projecting piece and the edge can be more effectively eliminated.
Thus, it is possible to eliminate the gap between the first folded joint plate and the second folded joint plate and the gap between the edge of the first projecting piece and the edge of the second projecting piece. As a result, powdery or liquid foodstuffs are less likely to leak and are less likely to come into contact with the outside air.

請求項２に記載の発明は、請求項１に記載の、前記第１突出片の突端から前記第１側面板に向かう前記縁端と前記第１折込接合板の外縁との繋がり部および前記第２突出片の突端から前記第２側面板に向かう前記縁端と前記第２折込接合板の外縁との繋がり部がアール形状となっていることを特徴とする。 The invention according to claim 2 is characterized in that, according to claim 1 , the connecting portion between the edge extending from the tip of the first projecting piece toward the first side plate and the outer edge of the first folding joint plate and the second A connecting portion between the edge extending from the tip end of the two protruding pieces toward the second side plate and the outer edge of the second folding joining plate is rounded.

請求項２に記載の発明によれば、前記第１突出片の突端から前記第１側面板に向かう前記縁端と前記第１折込接合板の外縁との繋がり部及び前記第２突出片の突端から前記第２側面板に向かう前記縁端と前記第２折込接合板の外縁との繋がり部がアール形状となっているので、前記第５折線を谷折りし、前記第６折線を山折りして、重ね合わせた前記第１折込接合板、第２折込接合板を前記第２側面板の外面に重ね合わせたとき、前記第１突出片の突端から前記第１側面板に向かう前記縁端と前記第１折込接合板の外縁との繋がり部及び前記第２突出片の突端から前記第２側面板に向かう前記縁端と前記第２折込接合板の外縁との繋がり部がアール形状により誘導されて確実に当接し、前記繋がり部により、前記第１折込接合板、第２折込接合板が前記第５折線と前記第６折線の部分を包み込むような形状となり、重ね合わせた前記第１折込接合板と前記第２折込接合板との隙間を一層効果的に無くすことができる。 According to the invention of claim 2 , the connecting portion between the edge extending from the tip of the first projecting piece toward the first side plate and the outer edge of the first folding joint plate and the tip of the second projecting piece Since the connection portion between the edge extending from the second side plate and the outer edge of the second folding joint plate is rounded, the fifth folding line is valley-folded, and the sixth folding line is mountain-folded. Then, when the first folded joint plate and the second folded joint plate are overlapped on the outer surface of the second side plate, the edge from the tip of the first projecting piece toward the first side plate A connecting portion between the outer edge of the first folding joint plate and a connecting portion between the edge extending from the tip end of the second projecting piece toward the second side plate and the outer edge of the second folding joint plate are guided by a rounded shape. The connecting portion ensures that the first folding joint plate and the second folding joint plate wrap around the fifth fold line and the sixth fold line, and the first fold joint is overlapped. The gap between the plate and the second folding joint plate can be eliminated more effectively.

本発明に係るフランジ付き紙容器によれば、粉末状或いは液体状の食品などの内容物漏れや、食品などと外気との接触を効果的に防止することができ、また、構成が簡単なので容易に製造することができる。 According to the flanged paper container according to the present invention, it is possible to effectively prevent leakage of contents such as powdery or liquid food and contact of food with the outside air, and it is easy to handle because of its simple structure. can be manufactured to

本発明に係るフランジ付き紙容器の実施の形態の一例をブランクで示す展開説明図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a development explanatory view showing an example of an embodiment of a flanged paper container according to the present invention with a blank; 図１の一部拡大図である。FIG. 2 is a partially enlarged view of FIG. 1; 図１に示すブランクで組み立てられた本発明に係るフランジ付き紙容器の斜視図である。Figure 2 is a perspective view of a flanged paper container according to the present invention assembled from the blank shown in Figure 1; 図３に示すフランジ付き紙容器の内側を斜め上方から見た一部拡大説明図である。FIG. 4 is a partially enlarged explanatory view of the inside of the flanged paper container shown in FIG. 3 as seen obliquely from above; 図３に示すフランジ付き紙容器の外側を斜め下方から見た一部拡大説明図である。4 is a partially enlarged explanatory view of the outer side of the flanged paper container shown in FIG. 3 as seen obliquely from below; FIG. 従来のフランジ付き紙容器をブランクで示す展開説明図である。It is an expansion|deployment explanatory drawing which shows the conventional paper container with a flange with a blank.

以下、本発明に係るフランジ付き紙容器の実施の形態の一例を図面を参照して詳細に説明する。
図１は本発明に係るフランジ付き紙容器の実施の形態の一例をブランクで示す展開説明図、図２は図１の一部拡大図、図３は図１に示すブランクで組み立てられたフランジ付き紙容器の斜視図、図４は図３に示すフランジ付き紙容器の内側を斜め上方から見た一部拡大説明図、図５は図３に示すフランジ付き紙容器の外側を斜め下方から見た一部拡大説明図である。 BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a flanged paper container according to the present invention will be described in detail below with reference to the drawings.
FIG. 1 is an exploded explanatory view showing an example of an embodiment of a flanged paper container according to the present invention with a blank, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. 3 is a flange assembled with the blank shown in FIG. A perspective view of a paper container, FIG. 4 is a partially enlarged explanatory view of the inside of the flanged paper container shown in FIG. 3 as viewed obliquely from above, and FIG. It is a partially enlarged explanatory view.

本例のフランジ付き紙容器は、図１に示すブランクによって組み立てられる。
本例のフランジ付き紙容器を組み立てるブランクは、少なくとも容器の内面となる側に熱可塑性樹脂層が積層された紙基材からなる。
積層されている熱可塑性樹脂層は、熱可塑性樹脂フィルムをラミネートしたものや、熱可塑性樹脂を押出しラミネートしたものでもよく、また、熱可塑性樹脂を塗工、或いは印刷といった手段により積層したものであってもよい。
このような紙基材からなるブランクは、矩形状の底面板１の相対向する二辺にそれぞれ第１折線２を介して第１側面板３が設けられ、底面板１の他の相対向する二辺にそれぞれ第２折線４を介して第２側面板５が設けられている。
第１側面板３の外端縁には第３折線６を介して第１フランジ板７が設けられ、第２側面板５の外端縁には第４折線８を介して第２フランジ板９が設けられている。 The flanged paper container of this example is assembled by the blank shown in FIG.
The blank for assembling the flanged paper container of this example is made of a paper substrate laminated with a thermoplastic resin layer at least on the inner surface of the container.
The laminated thermoplastic resin layer may be one obtained by laminating a thermoplastic resin film, extrusion laminating a thermoplastic resin, or laminating a thermoplastic resin by means of coating or printing. may
A blank made of such a paper base material is provided with first side plates 3 on two opposite sides of a rectangular bottom plate 1 with first folding lines 2 interposed therebetween, and on the other opposite sides of the bottom plate 1. A second side plate 5 is provided on each of two sides with a second folding line 4 interposed therebetween.
A first flange plate 7 is provided on the outer edge of the first side plate 3 via a third folding line 6 , and a second flange plate 9 is provided on the outer edge of the second side plate 5 via a fourth folding line 8 . is provided.

隣り合う第１側面板３と第２側面板５の側端縁の間には、両側端縁にそれぞれ第５折線１０、第６折線１１を介して連結するとともに中央で第７折線１２を介して折り畳み自在に互いに連結する逆三角形の第１折込接合板１３と第２折込接合板１４が設けられている。
第１折込接合板１３の外縁に第８折線１５を介してフランジ接合片１６が設けられ、第１フランジ板７の両端には第１突出片１７が設けられ、第２フランジ板９の両端に第２突出片１８が設けられている。
そして、第１突出片１７は、その突端から第１側面板３に向かう縁端１９が第５折線１０の近傍で第１折込接合板１３の外縁と繋がり、第２突出片１８は、その突端から第２側面板５に向かう縁端２０が第６折線１１の近傍で第２折込接合板１４の外縁と繋がっている。 The side edges of the adjacent first side plate 3 and second side plate 5 are connected to both side edges via a fifth folding line 10 and a sixth folding line 11, respectively, and a seventh folding line 12 is provided at the center. A first folding joint plate 13 and a second folding joint plate 14 are provided, which are connected to each other so as to be freely foldable.
Flange joint pieces 16 are provided on the outer edge of the first folding joint plate 13 via the eighth folding line 15, first projecting pieces 17 are provided on both ends of the first flange plate 7, and both ends of the second flange plate 9 A second projecting piece 18 is provided.
The edge 19 of the first projecting piece 17 extending from the tip toward the first side plate 3 is connected to the outer edge of the first folding joint plate 13 near the fifth folding line 10, and the second projecting piece 18 is connected to the tip of the first side plate 3. The edge 20 extending from the second side plate 5 toward the second side plate 5 is connected to the outer edge of the second folding joint plate 14 in the vicinity of the sixth folding line 11 .

このように第１突出片１７の突端から第１側面板３に向かう縁端１９が第５折線１０の近傍で第１折込接合板１３の外縁と繋がり、第２突出片１８の突端から第２側面板５に向かう縁端２０が第６折線１１の近傍で第２折込接合板１４の外縁と繋がっているので、第１突出片１７の突端から第１側面板３に向かう縁端１９と第５折線１０との間における第１突出片１７と第１折込接合板１３とが連接し、第２突出片１８の突端から第２側面板５に向かう縁端２０と第６折線１１との間における第２突出片１８と第２折込接合板１４とが連接した状態にある。
In this way, the edge 19 from the tip of the first projecting piece 17 toward the first side plate 3 is connected to the outer edge of the first folding joint plate 13 near the fifth folding line 10, and the tip of the second projecting piece 18 is connected to the second Since the edge 20 toward the side plate 5 is connected to the outer edge of the second folding joint plate 14 in the vicinity of the sixth folding line 11, the edge 19 toward the first side plate 3 from the tip of the first protruding piece 17 and the second The first protruding piece 17 and the first folding joint plate 13 are connected between the 5 fold line 10, and the edge 20 from the tip of the second protruding piece 18 toward the second side plate 5 and the 6th fold line 11 , the second projecting piece 18 and the second folding joint plate 14 are connected to each other.

第１突出片１７の突端から第１側面板３に向かう縁端１９と第５折線１０との間Ｗ１および第２突出片１８の突端から第２側面板５に向かう縁端２０と第６折線１１との間Ｗ２の長さは、１ｍｍ以上、３ｍｍ以下であることが好ましい。
Ｗ１、Ｗ２が１ｍｍ未満であると、後述するところのフランジ付き紙容器の組み立てに際し、第１折込接合板１３と第２折込接合板１４とを重ね合わせたとき、第１突出片１７の縁端１９と第２突出片１８の縁端２０との隙間を無くすことが難しくなる場合があり、 また、Ｗ１、Ｗ２が３ｍｍを超えると、第５折線１０を谷折りし、第６折線１１を山折りし、第７折線１２を谷折りして重ね合わせた第１折込接合板１３、第２折込接合板１４を第２側面板５の外面に重ね合わせることが困難になる場合がある。 Between the edge 19 extending from the tip of the first projecting piece 17 to the first side plate 3 and the fifth folding line 10 W1 and the edge 20 extending from the tip of the second projecting piece 18 to the second side plate 5 and the sixth folding line 11 is preferably 1 mm or more and 3 mm or less.
If W1 and W2 are less than 1 mm, the edges of the first protruding piece 17 will not be visible when the first folding joint plate 13 and the second folding joint plate 14 are overlapped when assembling a flanged paper container, which will be described later. 19 and the edge 20 of the second protruding piece 18 may be difficult to eliminate. It may be difficult to overlap the first folded joint plate 13 and the second folded joint plate 14, which are folded and folded along the seventh fold line 12, on the outer surface of the second side plate 5 in some cases.

また、本例では、第１突出片１７の突端から第１側面板３に向かう縁端１９と第１折込接合板１３の外縁との繋がり部Ａおよび第２突出片１８の突端から第２側面板５に向かう縁端２０と第２折込接合板１４の外縁との繋がり部Ｂがアール形状となっている。
繋がり部Ａ，Ｂのアール形状にあっては、第５折線１０を谷折りし、第６折線１１を山折りして重ね合わせた第１折込接合板１３、第２折込接合板１４を第２側面板５の外面に重ね合わせたとき、繋がり部Ａ，Ｂ同士が当接するように繋がり部Ａ，Ｂを誘導するものであり、繋がり部Ａ，Ｂ同士が当接するように繋がり部Ａ，Ｂを誘導できれば、アール形状の形や曲率は特に限定されない。 Further, in this example, the connecting portion A between the edge 19 extending from the tip of the first projecting piece 17 toward the first side plate 3 and the outer edge of the first folding joint plate 13 and the second side from the tip of the second projecting piece 18 A connection portion B between the edge 20 facing the face plate 5 and the outer edge of the second folding joint plate 14 has a rounded shape.
In the curved shape of the connecting portions A and B, the fifth folding line 10 is valley-folded and the sixth folding line 11 is mountain-folded, and the first folding joint plate 13 and the second folding joint plate 14 are superimposed to form the second folding joint plate. When superimposed on the outer surface of the side plate 5, the connecting portions A and B are guided so that the connecting portions A and B are in contact with each other. The shape and curvature of the rounded shape are not particularly limited as long as they can induce the .

このような展開構造を有するブランクによるフランジ付き紙容器の組み立ては、先ず、第１折線２、第２折線４を谷折りして第１側面板３、第２側面板５を立ち上げるとともに、第７折線１２を谷折りして第１折込接合板１３と第２折込接合板１４を重ね合わせ、重ね合わせた箇所を接着する。 To assemble a paper container with a flange using a blank having such an unfolded structure, first, the first folding line 2 and the second folding line 4 are valley-folded to raise the first side plate 3 and the second side plate 5, and then the second side plate 5 is folded. The 7-fold line 12 is valley-folded, the first folding joining plate 13 and the second folding joining plate 14 are overlapped, and the overlapped portions are adhered.

次に、第５折線１０を谷折りし、第６折線１１を山折りして、第２折込接合板１４の外面を第２側面板５の外面に重ね合わせるとともに、フランジ接合片１６および第１突出片１７の内面を、第２突出片１８を含む第２フランジ板９の外面に重ね合わせ、重ね合わせた箇所を接着する（図４，５参照。）。
そして、第３折線６、第４折線８を山折りして第１フランジ板７、第２フランジ板９を横方向に倒す。 Next, the fifth fold line 10 is valley-folded, the sixth fold line 11 is mountain-folded, and the outer surface of the second folding joint plate 14 is superimposed on the outer surface of the second side plate 5, and the flange joint piece 16 and the first The inner surface of the protruding piece 17 is overlapped with the outer surface of the second flange plate 9 including the second protruding piece 18, and the overlapped portion is adhered (see FIGS. 4 and 5).
Then, the third folding line 6 and the fourth folding line 8 are mountain-folded to lay down the first flange plate 7 and the second flange plate 9 in the horizontal direction.

このようにして組み立てられる本例のフランジ付き紙容器は、第１突出片１７の突端から第１側面板３に向かう縁端１９と第５折線１０との間における第１突出片１７と第１折込接合板１３とが連接し、第２突出片１８の突端から第２側面板５に向かう縁端２０と第６折線１１との間における第２突出片１８と第２折込接合板１４とが連接した状態にあるので、第５折線１０を谷折りし、第６折線１１を山折りして重ね合わせた第１折込接合板１３、第２折込接合板１４を第２側面板５の外面に重ね合わせたとき、第１突出片１７の縁端１９と第５折線１０との間にある第１折込接合板１３の一部が谷折りした第５折線１０に沿って谷折り方向へ弾性変形し、そして、第２突出片１８の縁端２０と第６折線１１との間ある第２折込接合板１４の一部が山折りした第６折線１１に沿って山折り方向へ弾性変形して互いに強く密着した状態で重なり合うことになり、第１折込接合板１３と第２折込接合板１４との隙間を無くすことができる。 The flanged paper container of the present example assembled in this manner has the first projecting piece 17 and the first projecting piece 17 between the edge 19 extending from the tip of the first projecting piece 17 toward the first side plate 3 and the fifth folding line 10 . The second protruding piece 18 and the second folding joint plate 14 are connected to each other between the second protruding piece 18 and the sixth folding line 11 and the edge 20 from the tip end of the second protruding piece 18 toward the second side plate 5 and the sixth fold line 11. Since it is in a connected state, the fifth fold line 10 is valley-folded and the sixth fold line 11 is mountain-folded, and the first folding joining plate 13 and the second folding joining plate 14 are superimposed on the outer surface of the second side plate 5. When superimposed, a part of the first folding joint plate 13 between the edge 19 of the first protruding piece 17 and the fifth folding line 10 is elastically deformed in the valley folding direction along the valley folding fifth folding line 10. Then, a part of the second folding joint plate 14 between the edge 20 of the second protruding piece 18 and the sixth folding line 11 is elastically deformed in the mountain folding direction along the mountain folding sixth folding line 11. Since they overlap each other in a strongly adhered state, the gap between the first folding joint plate 13 and the second folding joint plate 14 can be eliminated.

また、フランジ接合片１６および第１突出片１７を、第２突出片１８を含む第２フランジ板９の外側に位置するように重ね合わせた状態で、第３折線６、第４折線８を山折りして第１フランジ板７、第２フランジ板９を横方向に倒したとき、第１突出片１７の縁端１９と第５折線１０との間にある第１突出片１７と第１折込接合板１３との連接部位と、第２突出片１８の縁端２０と第６折線１１との間にある第２突出片１８と第２折込接合板１４との連接部位とが弾性変形し、第１突出片１７の縁端１９と第２突出片１８の縁端２０とが互いに強く密着した状態で重なり合うことになり、第１突出片１７の縁端１９と第２突出片１８の縁端２０との隙間を無くすことができる。 Also, the flange joint piece 16 and the first protruding piece 17 are superimposed on each other so as to be located outside the second flange plate 9 including the second protruding piece 18, and the third folding line 6 and the fourth folding line 8 are formed into a mountain. When the first flange plate 7 and the second flange plate 9 are folded and laid down in the horizontal direction, the first projecting piece 17 and the first folded part are located between the edge 19 of the first projecting piece 17 and the fifth folding line 10. elastically deforming the connecting portion with the joining plate 13 and the connecting portion between the second projecting piece 18 and the second folded joining plate 14 between the edge 20 of the second projecting piece 18 and the sixth folding line 11, The edge 19 of the first projecting piece 17 and the edge 20 of the second projecting piece 18 overlap each other in a tightly adhered state, and the edge 19 of the first projecting piece 17 and the edge 20 of the second projecting piece 18 overlap each other. 20 can be eliminated.

また、本例では、第１突出片１７の突端から第１側面板３に向かう縁端１９と第１折込接合板１３の外縁との繋がり部Ａおよび第２突出片１８の突端から第２側面板５に向かう縁端２０と第２折込接合板１４の外縁との繋がり部Ｂがアール形状となっているので、第５折線１０を谷折りし、第６折線１１を山折りして重ね合わせた第１折込接合板１３、第２折込接合板１４を第２側面板５の外面に重ね合わせたとき、繋がり部Ａ，Ｂ同士がアール形状により誘導されて確実に当接し、繋がり部Ａ，Ｂにより、第１折込接合板１３、第２折込接合板１４が第５折線１０と第６折線１１の部分を包み込むような形状となり、重ね合わせた第１折込接合板１３と第２折込接合板１４との隙間を一層効果的に無くすことができる。 Further, in this example, the connecting portion A between the edge 19 extending from the tip of the first projecting piece 17 toward the first side plate 3 and the outer edge of the first folding joint plate 13 and the second side from the tip of the second projecting piece 18 Since the connecting portion B between the edge 20 facing the face plate 5 and the outer edge of the second folding joint plate 14 is rounded, the fifth folding line 10 is valley-folded and the sixth folding line 11 is mountain-folded and overlapped. When the first folded joint plate 13 and the second folded joint plate 14 are superimposed on the outer surface of the second side plate 5, the connecting portions A and B are guided by the rounded shape to securely contact each other, and the connecting portions A and B are brought into contact with each other. By B, the first folding joint plate 13 and the second folding joint plate 14 are shaped so as to wrap the portions of the fifth folding line 10 and the sixth folding line 11, and the first folding joining plate 13 and the second folding joining plate are overlapped. 14 can be eliminated more effectively.

このようにして組み立てられた本例のフランジ付き紙容器によれば、特に密封が困難であった重ね合わせた第１折込接合板１３と第２折込接合板１４との隙間や、重ね合わせた第１突出片１７の縁端１９と第２突出片１８の縁端２０との隙間を無くすことができるので、粉末状或いは液体状の食品などの内容物漏れや、食品などと外気との接触を防止することができる。 According to the flanged paper container of this example assembled in this way, the gap between the first folded joint plate 13 and the second folded joint plate 14 that were particularly difficult to seal, and the overlapped second folded joint plate 13 Since the gap between the edge 19 of the first projecting piece 17 and the edge 20 of the second projecting piece 18 can be eliminated, leakage of contents such as powdery or liquid food and contact of the food with the outside air can be prevented. can be prevented.

１ 底面板
２ 第１折線
３ 第１側面板
４ 第２折線
５ 第２側面板
６ 第３折線
７ 第１フランジ板
８ 第４折線
９ 第２フランジ板
１０ 第５折線
１１ 第６折線
１２ 第７折線
１３ 第１折込接合板
１４ 第２折込接合板
１５ 第８折線
１６ フランジ接合片
１７ 第１突出片
１８ 第２突出片
１９ 縁端
２０ 縁端
1 Bottom plate 2 First broken line 3 First side plate 4 Second broken line 5 Second side plate 6 Third broken line 7 First flange plate 8 Fourth broken line 9 Second flange plate 10 Fifth broken line 11 Sixth broken line 12 Seventh Folding line 13 First folded joining plate 14 Second folding joining plate 15 Eighth folding line 16 Flange joining piece 17 First projecting piece 18 Second projecting piece 19 Edge 20 Edge

Claims (2)

少なくとも容器の内面となる側に熱可塑性樹脂層が積層された紙基材からなり、矩形状の底面板の相対向する二辺にそれぞれ第１折線を介して第１側面板が設けられ、前記底面板の他の相対向する二辺にそれぞれ第２折線を介して第２側面板が設けられ、前記第１側面板の外端縁に第３折線を介して第１フランジ板が設けられ、前記第２側面板の外端縁に第４折線を介して第２フランジ板が設けられ、隣り合う第１側面板と第２側面板の側端縁の間には、両側端縁にそれぞれ第５折線、第６折線を介して連結するとともに中央で第７折線を介して折り畳み自在に互いに連結する逆三角形の第１折込接合板と第２折込接合板が設けられ、前記第１折込接合板の外縁に第８折線を介してフランジ接合片が設けられ、前記第１フランジ板の両端には第１突出片が設けられ、前記第２フランジ板の両端に第２突出片が設けられたブランクを、
前記第１折線、第２折線を谷折りして第１側面板、第２側面板を立ち上げるとともに、第７折線を谷折りして第１折込接合板と第２折込接合板を重ね合わせ、重ね合わせた箇所を接着し、前記第５折線を谷折りし、前記第６折線を山折りして、重ね合わせた前記第１折込接合板、第２折込接合板を前記第２側面板の外面に重ね合わせるとともに、前記フランジ接合片および前記第１突出片を、前記第２突出片を含む前記第２フランジ板の外側に位置するように重ね合わせ、重ね合わせた箇所を接着し、第３折線、第４折線を山折りして前記第１フランジ板、第２フランジ板を横方向に倒して組み立てられるフランジ付き紙容器であって、
前記第１突出片の突端から前記第１側面板に向かう縁端が前記第５折線の近傍で前記第１折込接合板の外縁と繋がり、前記第２突出片の突端から前記第２側面板に向かう縁端が前記第６折線の近傍で前記第２折込接合板の外縁と繋がっており、
前記第１突出片の突端から前記第１側面板に向かう前記縁端と前記第５折線との間および 前記第２突出片の突端から前記第２側面板に向かう前記縁端と前記第６折線との間の長さは、１ｍｍ以上、３ｍｍ以下であることを特徴とするフランジ付き紙容器。 A rectangular bottom plate made of a paper base material laminated with a thermoplastic resin layer at least on the inner surface side of the container, and a first side plate provided on each of two opposite sides of the rectangular bottom plate via the first fold line, A second side plate is provided on each of the other two opposite sides of the bottom plate via a second fold line, and a first flange plate is provided on the outer edge of the first side plate via a third fold line, A second flange plate is provided on the outer edge of the second side plate via a fourth folding line, and between the side edges of the adjacent first side plate and the second side plate, second flange plates are provided on both side edges, respectively. A first folded joint plate and a second folded joint plate having an inverted triangular shape are provided, which are connected via 5 fold lines and a 6 fold line and are foldably connected to each other through a 7 fold line at the center, wherein the first fold joint plate A blank is provided with a flange joint piece on the outer edge of the blank through an eighth fold line, a first projecting piece is provided on both ends of the first flange plate, and a second projecting piece is provided on both ends of the second flange plate of,
The first folding line and the second folding line are valley-folded to raise the first side plate and the second side plate, and the seventh folding line is valley-folded to overlap the first folding joint plate and the second folding joint plate, The overlapped portions are glued together, the fifth fold line is valley-folded, the sixth fold line is mountain-folded, and the first fold joint plate and the second fold joint plate that are overlapped are attached to the outer surface of the second side plate. , the flange joint piece and the first protruding piece are superimposed so as to be positioned outside the second flange plate including the second protruding piece, the overlapped portions are glued, and the third folding line , a flanged paper container that can be assembled by folding the fourth folding line into a mountain and laying down the first flange plate and the second flange plate in the horizontal direction,
The edge from the tip of the first protruding piece toward the first side plate is connected to the outer edge of the first folding joint plate near the fifth folding line, and the tip of the second protruding piece extends to the second side plate. The facing edge is connected to the outer edge of the second folding joint plate in the vicinity of the sixth folding line,
Between the edge extending from the tip of the first protruding piece to the first side plate and the fifth folding line, and between the edge extending from the tip of the second protruding piece to the second side plate and the sixth folding line A flanged paper container , wherein the length between and is 1 mm or more and 3 mm or less . 前記第１突出片の突端から前記第１側面板に向かう前記縁端と前記第１折込接合板の外縁との繋がり部および前記第２突出片の突端から前記第２側面板に向かう前記縁端と前記第２折込接合板の外縁との繋がり部がアール形状となっていることを特徴とする請求項１に記載のフランジ付き紙容器。 A connecting portion between the edge extending from the tip of the first protruding piece toward the first side plate and the outer edge of the first folded joining plate, and the edge extending from the tip of the second protruding piece toward the second side plate 2. The flanged paper container according to claim 1, wherein a connection portion between the outer edge of the second folding joining plate and the outer edge of the second folding joining plate is curved .
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5244145A (en) 1993-03-10 1993-09-14 Westvaco Corporation Two way opening for a tray type carton
JP2012188160A (en) 2011-03-14 2012-10-04 Toppan Printing Co Ltd Blank for paper container having flange, and paper container having flange

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4287112B2 (en) * 2002-09-09 2009-07-01 大日本印刷株式会社 Paper tray
JP4891169B2 (en) * 2007-07-24 2012-03-07 共同印刷株式会社 Container blanks and sealed containers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5244145A (en) 1993-03-10 1993-09-14 Westvaco Corporation Two way opening for a tray type carton
JP2012188160A (en) 2011-03-14 2012-10-04 Toppan Printing Co Ltd Blank for paper container having flange, and paper container having flange

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