JP2013193744A

JP2013193744A - Wrap-round case

Info

Publication number: JP2013193744A
Application number: JP2012059851A
Authority: JP
Inventors: Kazushi Ishii; 一志石井; Hiroyuki Kishi; 宏幸岸
Original assignee: Rengo Co Ltd
Current assignee: Rengo Co Ltd
Priority date: 2012-03-16
Filing date: 2012-03-16
Publication date: 2013-09-30
Anticipated expiration: 2032-03-16
Also published as: JP5981176B2

Abstract

PROBLEM TO BE SOLVED: To prevent body swelling even if PET bottles etc. are packaged and a large stacking load is applied in a humid condition.SOLUTION: There is provided a wrap-round case formed by continuously providing a bottom plate 1, a pair of side plates 2, and a top plate 3, and sticking end flaps 5 extended from the side plates 2 to end flaps 6 extended from the bottom plate 1 and top plate 3 and sealing. In the wrap-round case, the side plates 2 are formed with intermediate valley-folding lines 9 provided between end parts to which the end flaps 5 are connected, ridge portion mountain-folding lines 12 where a bottom surface side separates from a top surface side and intermediate parts cross or approach are provided at boundary portions of the side plates 2 and end flaps 5 to thereby form narrowing ridge surface portions 13, and ridge portion valley-folding lines 14 where the bottom surface side and top surface side reach or approach both ends of the ridge portion mountain-folding lines 12 of the end flaps 5, and the intermediate parts separate from the ridge portion mountain-folding lines 12 are provided to form expanding ridge surface portions 15. Even if buckling occurs, the surface side is recessedly deformed, to thereby prevent a body-swelled shape from occurring.

Description

この発明は、飲料容器の集合包装等に使用する段ボール製ラップラウンドケースに関するものである。 The present invention relates to a corrugated cardboard wrap round case used for collective packaging of beverage containers.

例えば、図５に示すように、ビール等の飲料缶Ｃを集合包装する際には、連設した底面板５１、一対の側面板５２及び天面板５３により、集積した缶Ｃを包み込み、一方の側面板５２に連設した継代片５４に天面板５３を貼り付け、側面板５２から延出した端フラップ５５と、底面板５１及び天面板５３から延出した端フラップ５６とを貼り合わせて封緘する段ボール製のラップラウンドケースが使用される。 For example, as shown in FIG. 5, when collecting and packaging beverage cans C such as beer, the accumulated cans C are wrapped by the bottom plate 51, the pair of side plates 52 and the top plate 53 which are continuously provided. The top plate 53 is attached to the passage piece 54 provided continuously to the side plate 52, and the end flap 55 extending from the side plate 52 and the end flap 56 extending from the bottom plate 51 and the top plate 53 are bonded together. A sealed cardboard wrap round case is used.

このようなラップラウンドケースは、物流過程で大きな積上荷重が作用すると、側面板５２が樽状に膨出する胴膨れ現象が生じることがある。 In such a wrap round case, when a large load is applied in the physical distribution process, a side wall 52 may swell in a barrel shape.

その対策を施したラップラウンドケースとして、下記特許文献１には、図６に示すように、側面板５２と端フラップ５５の境界部分に、底面側及び天面側で接近し、中間部で間隔が広がる２本の弧状山折線５７，５８を入れ、山折線５７，５８の間に湾曲する稜面部５９を形成して、胴膨れを防止しようとするものが記載されている。 As a wrap round case for which such countermeasures have been taken, in Patent Document 1 below, as shown in FIG. 6, the boundary portion between the side plate 52 and the end flap 55 approaches the bottom surface side and the top surface side, and is spaced at the middle portion. Is described in which two arcuate mountain fold lines 57 and 58 are spread and a curved ridge surface 59 is formed between the mountain fold lines 57 and 58 to prevent swelling of the body.

特許第４５４２３１０号公報Japanese Patent No. 4542310

しかしながら、上記特許文献１に記載されたようなラップラウンドケースでは、缶ではなく耐圧強度の小さいペットボトルを包装した場合、段ボールの強度が低下する多湿条件下で胴膨れを十分防止できないという問題がある。 However, in the wrap round case described in the above-mentioned Patent Document 1, when a plastic bottle with a small pressure strength is packaged instead of a can, there is a problem that the swelling of the trunk cannot be sufficiently prevented under a humid condition in which the strength of the cardboard is reduced. is there.

そこで、この発明は、ペットボトル等を包装し、多湿条件下で大きな積上荷重が作用しても、胴膨れを防止できるようにすることを課題とする。 In view of this, an object of the present invention is to wrap plastic bottles and the like, and to prevent swelling of the body even when a large load is applied under humid conditions.

上記課題を解決するため、この発明は、底面板、一対の側面板及び天面板を連設し、側面板から延出した端フラップと、底面板及び天面板から延出した端フラップとを貼り合わせて封緘するラップラウンドケースにおいて、前記側面板に、端フラップが繋がる端部間に亘って中間谷折線を入れ、側面板と端フラップの境界部分に、底面側及び天面側が離反し、中間部が交差又は接近した稜部山折線を入れて、中括稜面部を形成すると共に、底面側及び天面側が端フラップ側の稜部山折線の両端に一致又は接近し、中間部が稜部山折線から離れた稜部谷折線を入れて、中拡稜面部を形成したのである。 In order to solve the above-mentioned problems, the present invention is provided with a bottom plate, a pair of side plates and a top plate, and an end flap extending from the side plate and an end flap extending from the bottom plate and the top plate are pasted. In the wrap round case that seals together, the intermediate side fold line is put on the side plate between the end portions where the end flaps are connected, and the bottom surface side and the top surface side are separated from each other at the boundary portion between the side plate and the end flap. The ridge part fold line where the part intersects or approaches is inserted to form the middle ridge face part, and the bottom side and the top side coincide with or approach both ends of the ridge part crease line on the end flap side, and the middle part is the ridge part The middle ridge surface part was formed by putting a ridge valley fold line away from the mountain fold line.

この発明に係るラップラウンドケースでは、コーナー部分において、中括稜面部と中拡稜面部とが耐圧荷重に優れた多面構造を形成するので、段ボールの強度が低下する多湿条件下で大きな積上荷重が作用しても、胴膨れが生じにくく、また、仮に座屈が生じても、中間谷折線及び稜部谷折線に沿って表面側が窪むように変形するので、胴膨れした形状となることがない。 In the wrap round case according to the present invention, in the corner portion, the intermediate ridge surface portion and the intermediate expanded ridge surface portion form a multi-face structure excellent in pressure-resistant load, so a large loading load under a high humidity condition in which the strength of the cardboard is reduced. Even if it acts, it will be difficult to swell, and even if buckling occurs, it will deform so that the surface side will be recessed along the intermediate valley fold line and the ridge valley fold line, so that it will not become a bulging shape .

この発明の実施形態に係るラップラウンドケースのブランクを示す図The figure which shows the blank of the wrap round case which concerns on embodiment of this invention 同上の包装状態を示す斜視図The perspective view which shows a packaging state same as the above 同上の端フラップ側からの側面図Side view from the end flap side 同上の座屈発生後の状態を示す側面図Side view showing the state after buckling occurs 従来の一般的なラップラウンドケースの包装状態を示す斜視図The perspective view which shows the packaging state of the conventional general wrap round case 特許文献１に記載のラップラウンドケースの包装状態を示す斜視図The perspective view which shows the packaging state of the wrap round case of patent document 1

以下、この発明の実施形態を添付図面に基づいて説明する。 Embodiments of the present invention will be described below with reference to the accompanying drawings.

このラップラウンドケースは、飲料入りペットボトルを集合包装するものであり、図１に示すような段ボール製のブランクを組み立てて形成される。 This wrap round case collects and wraps plastic bottles with beverages, and is formed by assembling a cardboard blank as shown in FIG.

このブランクでは、底面板１の一側に側面板２及び天面板３が、他側に側面板２及び継代片４がそれぞれ順次連設され、側面板２の両端に端フラップ５が、底面板１及び天面板３の両端に端フラップ６がそれぞれ連設されている。 In this blank, the side plate 2 and the top plate 3 are sequentially connected to one side of the bottom plate 1, the side plate 2 and the passage piece 4 are sequentially connected to the other side, and end flaps 5 are provided at both ends of the side plate 2. End flaps 6 are connected to both ends of the face plate 1 and the top face plate 3, respectively.

底面板１及び天面板３は、長方形の四隅に短い斜辺を有する八角形状とされ、側面板２は、底面板１及び天面板３の長辺に繋がっている。端フラップ６の両側縁は、後述する稜部谷折線１４より内側に位置するように、斜めに切断されている。 The bottom plate 1 and the top plate 3 are octagonal shapes having short oblique sides at the four corners of the rectangle, and the side plate 2 is connected to the long sides of the bottom plate 1 and the top plate 3. Both side edges of the end flap 6 are cut obliquely so as to be located inside a ridge-valley fold line 14 to be described later.

底面板１、一対の側面板２、天面板３及び継代片４の境界をなす稜部山折線７は、中央側が側面板２へ迫り出すように僅かにＶ字状に屈曲し、底面板１及び天面板３と端フラップの境界をなす稜部山折線８は、水平となっている。 The ridge mountain fold line 7 that forms the boundary between the bottom plate 1, the pair of side plates 2, the top plate 3, and the passage piece 4 is slightly bent in a V shape so that the center side protrudes toward the side plate 2. 1 and the ridge part mountain fold line 8 which makes the boundary of the top plate 3 and an end flap are horizontal.

側面板２とその両端の端フラップ５には、幅方向の中間部に中間谷折線９が入れられ、中間谷折線９は、表面側が窪む谷折り方向へ折れ曲がりやすいように、表面側から押圧した逆罫線又は裏面側から厚さ方向の途中まで切り込んだ半切線とされている。 The side plate 2 and the end flaps 5 at both ends thereof are provided with an intermediate valley fold line 9 at the intermediate portion in the width direction, and the intermediate valley fold line 9 is pressed from the surface side so as to be easily bent in the valley fold direction where the surface side is recessed. The reverse ruled line or the half-cut line cut from the back side to the middle in the thickness direction.

また、側面板２及びその両端の端フラップ５には、中間谷折線９の位置に、開封用の引裂帯としてカットテープが貼着され、側面板２の中央部には、Ｈ字状に切込を入れてその摘み部１０が形成されている。端フラップ５，６には、取手穴１１が設けられている。 Further, a cut tape is attached to the side plate 2 and the end flaps 5 at both ends thereof as a tear strip for opening at the position of the intermediate valley fold line 9, and the side plate 2 is cut into an H shape at the center. The knob 10 is formed with the insert. The end flaps 5 and 6 are provided with handle holes 11.

そして、側面板２と端フラップ５の境界部分には、両端側が離反し、中間部が接近して交差したＸ字状をなす２本の稜部山折線１２が入れられ、中央部が括れた中括稜面部１３が形成されている。稜部山折線１２は、表面側が突き出す山折り方向へ折れ曲がりやすいように、裏面側から押圧した通常の罫線とされている。 And in the boundary part of the side plate 2 and the end flap 5, the two ridge part mountain fold lines 12 which make the X shape which both ends side separated and the intermediate part approached and crossed were put, and the center part was bundled An intermediate ridge surface portion 13 is formed. The ridge mountain fold line 12 is a normal ruled line pressed from the back side so that it can be easily bent in the mountain fold direction protruding from the front side.

また、側面板２と端フラップ５の境界部分には、両端が端フラップ５側の稜部山折線１２の両端に一致し、中間部が稜部山折線１２の交差部から離れるように屈曲した稜部谷折線１４が入れられ、菱形状の中拡稜面部１５が形成されている。稜部谷折線１４は、谷折り方向へ折れ曲がりやすいように、表面側から押圧した逆罫線又は裏面側から厚さ方向の途中まで切り込んだ半切線とされている。 In addition, the boundary portion between the side plate 2 and the end flap 5 is bent so that both ends coincide with both ends of the ridge mountain fold line 12 on the end flap 5 side and the intermediate portion is separated from the intersection of the ridge mountain fold line 12. Ridge valley fold line 14 is inserted, and rhombus-shaped middle expanded ridge surface portion 15 is formed. The ridge-valley fold line 14 is a reverse ruled line pressed from the front surface side or a half-cut line cut from the back surface side to the middle in the thickness direction so as to be easily bent in the valley fold direction.

このようなブランクを組み立てて、図２及び図３に示すように、ペットボトルＢを包装する際には、底面板１に集積したペットボトルＢを載せ、一対の側面板２を稜部山折線７に沿って起立させ、継代片４を内側へ折り曲げ、天面板３を稜部山折線７に沿って折り曲げ、ペットボトルＢの上方に被せて、継代片４に貼り付け、端フラップ５，６を稜部山折線１２，８に沿って順次折り曲げ、貼り合わせることにより封緘する。 When assembling such a blank and packaging the plastic bottle B as shown in FIGS. 2 and 3, the plastic bottle B accumulated on the bottom plate 1 is placed, and the pair of side plates 2 are connected to the ridge mountain fold line. 7, the passage piece 4 is folded inward, the top plate 3 is folded along the ridge mountain fold line 7, and is put on the upper side of the plastic bottle B, and is attached to the passage piece 4, and the end flap 5 , 6 are sequentially bent along the ridge mountain fold lines 12 and 8 and sealed together by bonding.

この組み立てに際し、稜部山折線１２に沿った山折り方向への折り曲げに伴い、中括稜面部１３は、四隅のペットボトルＢに沿うように斜め向きとなり、中拡稜面部１５は、中括稜面部１３に引っ張られて、中間部の表面側が少し窪む。 At the time of this assembly, along with the folding in the mountain fold direction along the ridge mountain fold line 12, the middle ridge surface portion 13 is inclined so as to follow the plastic bottles B at the four corners, and the middle expanded ridge surface portion 15 is It is pulled by the ridge surface part 13 and the surface side of the intermediate part is slightly depressed.

上記のようなラップラウンドケースでは、コーナー部分において、中括稜面部１３と中拡稜面部１５とが耐圧荷重に優れた多面構造を形成し、また、稜部山折線７が僅かにＶ字状となり、主としてコーナー部分に荷重が作用するので、段ボールの強度が低下する多湿条件下で大きな積上荷重が作用しても、胴膨れが生じにくい。 In the wrap round case as described above, in the corner portion, the middle ridge surface portion 13 and the middle expanded ridge surface portion 15 form a polyhedral structure excellent in pressure resistance load, and the ridge mountain fold line 7 is slightly V-shaped. Thus, since the load mainly acts on the corner portion, even if a large lift load acts under a high humidity condition in which the strength of the cardboard is reduced, it is difficult for the body to swell.

また、仮に座屈が生じても、図４に示すように、中間谷折線９及び稜部谷折線１４に沿って表面側が窪むように変形するので、胴膨れした形状となることがない。 Further, even if buckling occurs, as shown in FIG. 4, the surface side is deformed so as to be recessed along the intermediate valley fold line 9 and the ridge valley fold line 14, so that it does not become a swollen shape.

なお、上記実施形態では、稜部山折線１２及び稜部谷折線１４が直線からなるものを例示したが、これらは、弧状の曲線としてもよい。 In addition, in the said embodiment, although the ridge mountain fold line 12 and the ridge valley fold line 14 illustrated what consists of a straight line, these are good also as an arc-shaped curve.

また、稜部山折線１２が中間部で交差してＸ字状をなすものを例示したが、稜部山折線１２は、交差していなくても、中間部で接近していれば、同様の胴膨れ防止効果を得ることができる。 Moreover, although the ridge part mountain fold line 12 illustrated what crossed in an intermediate part and made | forms X shape, even if the ridge part mountain fold line 12 does not cross | intersect, if it is approaching in an intermediate part, it will be the same An effect of preventing torso swelling can be obtained.

さらに、稜部谷折線１４の両端が端フラップ５側の稜部山折線１２の両端に一致するものを例示したが、これらは一致していなくても、接近していれば、同様の胴膨れ防止効果を得ることができる。 Furthermore, although the example in which both ends of the ridge valley fold line 14 coincide with both ends of the ridge mountain fold line 12 on the side of the end flap 5 is illustrated, if these are not coincident but are close to each other, the same bulge The prevention effect can be obtained.

そのほか、中間谷折線９を側面板２の高さ方向の中間部に１本のみ入れたものを例示したが、中間谷折線９は、側面板２に上下に間隔をあけて２本入れてもよく、この場合、稜部山折線１２は、中間谷折線９の間では垂直方向に平行し、上下の中間谷折線９の上方及び下方で離反するように入れるとよい。 In addition, although an example in which only one intermediate valley fold line 9 is inserted in the intermediate portion in the height direction of the side plate 2 has been illustrated, two intermediate valley fold lines 9 may be inserted in the side plate 2 at intervals in the vertical direction. In this case, the ridge mountain fold line 12 may be inserted so as to be parallel to the vertical direction between the intermediate valley fold lines 9 and separated above and below the upper and lower intermediate valley fold lines 9.

１底面板
２側面板
３天面板
４継代片
５，６端フラップ
７，８稜部山折線
９中間谷折線
１０摘み部
１１取手穴
１２稜部山折線
１３中括稜面部
１４稜部谷折線
１５中拡稜面部 DESCRIPTION OF SYMBOLS 1 Bottom plate 2 Side plate 3 Top plate 4 Passage piece 5, 6 End flap 7, 8 Ridge mountain fold line 9 Middle valley fold line 10 Knob part 11 Handle hole 12 Ridge mountain fold line 13 Middle ridge surface part 14 Ridge valley fold line 15 Middle expanded ridge surface

Claims

底面板(1)、一対の側面板(2)及び天面板(3)を連設し、側面板(2)から延出した端フラップ(5)と、底面板(1)及び天面板(3)から延出した端フラップ(6)とを貼り合わせて封緘するラップラウンドケースにおいて、前記側面板(2)に、端フラップ(5)が繋がる端部間に亘って中間谷折線(9)を入れ、側面板(2)と端フラップ(5)の境界部分に、底面側及び天面側が離反し、中間部が交差又は接近した稜部山折線(12)を入れて、中括稜面部(13)を形成すると共に、底面側及び天面側が端フラップ側の稜部山折線(12)の両端に一致又は接近し、中間部が稜部山折線(12)から離れた稜部谷折線(14)を入れて、中拡稜面部(15)を形成したことを特徴とするラップラウンドケース。 A bottom plate (1), a pair of side plates (2) and a top plate (3) are connected in series, an end flap (5) extending from the side plate (2), a bottom plate (1) and a top plate (3 In the wrap round case that seals the end flap (6) that extends from the side flap (6), the side plate (2) has an intermediate valley fold line (9) across the end where the end flap (5) is connected. Put the ridge mountain fold line (12) where the bottom side and the top side are separated and the middle part intersects or approaches the boundary part between the side plate (2) and the end flap (5) 13) and the bottom side and the top side coincide with or approach both ends of the ridge part mountain fold line (12) on the end flap side, and the middle part is a ridge valley fold line separated from the ridge part mountain fold line (12) ( 14) A wrap round case characterized by forming a middle expanded ridge surface part (15).