WO2018235789A1 - Packaging box - Google Patents

Packaging box Download PDF

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Publication number
WO2018235789A1
WO2018235789A1 PCT/JP2018/023190 JP2018023190W WO2018235789A1 WO 2018235789 A1 WO2018235789 A1 WO 2018235789A1 JP 2018023190 W JP2018023190 W JP 2018023190W WO 2018235789 A1 WO2018235789 A1 WO 2018235789A1
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WO
WIPO (PCT)
Prior art keywords
plate
breaking
side plate
packaging box
flap
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PCT/JP2018/023190
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French (fr)
Japanese (ja)
Inventor
一志 石井
耕太郎 長原
晶博 坪田
大谷　昌義
Original Assignee
レンゴー株式会社
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Publication date
Application filed by レンゴー株式会社 filed Critical レンゴー株式会社
Priority to JP2019525615A priority Critical patent/JP7221201B2/en
Publication of WO2018235789A1 publication Critical patent/WO2018235789A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing

Definitions

  • the packaging box 10 is formed by bending and fixing a single blank shown in FIG. 2 at a predetermined portion.
  • the blank is formed by punching out a cardboard sheet made of paper by a well-known carton punching device.
  • the corrugated cardboard sheet has a configuration in which a corrugated centerline is disposed between the front liner and the back liner.
  • the dashed-dotted line in FIG. 2 is a general-purpose ruled line formed by scoring from the side of the back liner so as to compress the thickness.
  • the solid line in FIG. 2 is a cutting line formed by inserting a blade from the back liner to the front liner and a shape line (side) by punching.
  • the dashed-two dotted line in FIG. 9 mentioned later is the reverse ruled line which put and formed the scribe from the direction of front liner so that thickness may be compressed.
  • the packaging box 10 includes a pair of end plates (first side plates) 13A and 13B and a pair of side plates (second side plates) 14A and 14B.
  • the end plates 13A and 13B have substantially the same rectangular shape extending along the YZ plane, and are arranged to face both ends of the side plates 14A and 14B at intervals in the X direction.
  • the side plates 14A and 14B have substantially the same rectangular shape extending along the ZX plane, and are arranged to face both ends of the end plates 13A and 13B at intervals in the Y direction.
  • the upper lid portion (first continuous plate) 24 includes a pair of inner flaps 25A, 25B and a pair of outer flaps 27A, 27B.
  • the inner flaps 25A and 25B are substantially the same rectangular shape, and are continuously connected to the upper side (second side) of the end plates 13A and 13B via a folding line 26 formed of general-purpose ruled lines.
  • the outer flaps 27A and 27B have substantially the same rectangular shape, and are continuously provided on the upper side (third side) of the side plates 14A and 14B via a folding line 28 formed of general-purpose ruled lines.
  • the first operation portion 30 is constituted by a fold line 31, a pair of first broken lines 32, 32 and a second broken line 33, and the inner flaps 25A, 25B are continuously provided. It is operated toward the bent line (second side) 26.
  • the fold line 31 is a general ruled line and extends in the Y direction along the fold line 26.
  • the first breaking line 32 is composed of two or more cutting lines, and extends from both ends of the folding line 31 in an arc shape in the Y direction.
  • the second breaking line 33 is composed of two or more cutting lines, and extends in an arc shape from one of the outer ends of the pair of first breaking lines 32, 32 in the Y direction to the other.
  • the first operation portion 30 of the end plate 13A is provided at a position biased toward the side plate 14A
  • the first operation portion 30 of the end plate 13B is provided at a position biased toward the side plate 14B. .
  • the end 35 b of the first breaking portion 35 on the bending line 16 side and the end 42 b of the second breaking portion 42 on the bending line 16 side are spaced apart from each other by a predetermined first distance A. It is done.
  • the first distance A is set based on the linear distance (creeping distance) between the end 35 b of the first broken portion 35 and the end 42 b of the second broken portion 42 in the blank state.
  • the total length L1 of the incised portion 44 is set to 2 mm or more and 20 mm or less.
  • full length L2 (full height of the packaging box 10) of the folding curve 16 of this embodiment is 146 mm.
  • the first fracture portion 35 and the second fracture portion 42 are formed in a discontinuous state, and the incised portion 44 and the first fracture portion 35, as well as the incised portion 44 and the second fracture portion 42 are also discontinuous. It is formed. Therefore, the impact resistance can be improved as compared with the conventional packaging box in which the break line and the cut line are continuous.
  • the strength of the ridge between the end plates 13A and 13B and the side plates 14A and 14B is provided by providing the first fractured portion 35, the second fractured portion 42, and the notched portion 44 for opening the packaging box 10. Can be prevented from falling excessively.
  • the reduction in rigidity of the packaging box 10 can be minimized. As a result, even if the packaging box 10 drops or collides with another item during transportation, the buttocks will not be crushed. In addition, even when the packaging boxes 10 are stacked, the buttocks are not crushed.
  • the second auxiliary folding line 47 of the end plates 13A and 13B is formed of two general-purpose ruled lines extending in parallel, and the first auxiliary folding line 46 is extended from the side of the notch 44 away from the first operation part 30.
  • the line and the slope 26 are inclined toward the intersection.
  • the end of the second auxiliary bending line 47 on the side of the cut portion 44 is located at a distance from the cut portion 44.
  • the end on the upper lid 24 side of the second auxiliary folding line 47 is located at a distance from the folding line 26.
  • the side plates 55A and 55B are provided with an operation portion 37 similar to that of the first embodiment, and a second breaking portion 42 for breaking the side plates 55A and 55B by the operation of the operation portion 37.
  • the second breaking portion 42 extends in the X direction from the outer end of the operation portion 37 in the X direction toward the folding line 62 on the inner flap 61 side, along the folding line 57 on the top plate 54 side of the side plates 55A and 55B. There is.
  • the incised portion 44 is provided on a fold curve 62 between the inner flap 61 and the side plates 55A, 55B.
  • the relationship between the end 35b of the first breaking portion 35, the end 42b of the second breaking portion 42, and the formation positions of the notches 44 is the same as that of the first embodiment. Is set smaller than the first interval A (A> B), and the third interval C is set smaller than the first interval A (A> C). Further, the relationship (distance D1, D2) between the positions 44a and 44b of the notched portion 44 and the positions of the folding lines 64 and 65 is also provided as in the first embodiment.
  • the operation portion 37 is opened, and a hand is inserted into the opening portion or into the packaging box 50, and the top plate 54 side of the side plates 55A and 55B is pulled outward in the Y direction and upward in the Z direction as shown by arrow ⁇ . .
  • breakage of the side plates 55A, 55B is started along the second breakage portion 42.
  • the side plates 55A and 55B are broken along the first auxiliary folding line 48, and the side plates 55A and 55B are broken along the second auxiliary bending line 49.
  • the bending of the auxiliary bending curves 48, 49 promotes the breakage of the side plates 55A, 55B along the second breakage portion 42. And this fracture
  • the packaging box 50 is in an opened state in which the bottom plate 53 is in the form of a tray, and the top plate 54 is in the form of an expanded sheet.
  • the inner flap 61 may be broken after the side plates 55A, 55B are broken.
  • the notches 44 are provided such that one end of the inclined cutting line is located on the fold lines 16 and 62.
  • the upper end 44 a of the notch 44 is positioned lower than the end 35 b of the first break line 35, and the lower end 44 b of the notch 44 is closer to the end 42 b of the second break line 42. Is also located on the upper side.
  • the end of the cut portion 44 on the second broken portion 42 side is positioned on the bending curves 16 and 62, even if the end on the first broken portion 35 side is positioned on the bending curves 16 and 62 Good.
  • the inclination direction of the cutting line which comprises the cutting part 44 may be reverse direction.
  • the outer peripheral portion 12 may include a chamfered plate 70 between the end plates 13A and 13B and the side plates 14A and 14B.
  • the notches 44 may be provided on the fold line 16 between the end plates 13A and 13B and the chamfered plate 70 as shown, or the fold line 16 between the side plates 14A and 14B and the chamfered plate 70. It may be provided on top.
  • a chamfered plate 71 may be provided between the inner flaps 61, 61 and the side plates 55A, 55B.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Abstract

The packaging box (10) is provided with: first side panels (13A, 13B); second side panels (14A, 14B) provided in a linked manner with the first side panels (13A, 13B); a first manipulation part (30) disposed on the first side panels (13A, 13B); a first rupture part (35) disposed on the first side panels (13A, 13B); a second rupture part (42) disposed on the second side panels (14A, 14B); and cut parts (44) disposed on first sides (16) of the first side panels (13A, 13B). End (35b) of the first rupture part (35) and end (42b) of the second rupture part (42) are positioned apart with a prescribed first interval (A) therebetween. The end (35b) of the first rupture part (35) and the cut part (44) are positioned apart with a prescribed second interval (B) smaller than the first interval (A) therebetween. The end (42b) of the second rupture part (42) and the cut part (44) are positioned apart with a prescribed third interval (C) smaller than the first interval (A) therebetween.

Description

包装箱Packaging box
　本発明は、包装箱に関する。 The present invention relates to a packaging box.
　特許文献１には、底板、一対の側板、及び天板で構成された外周部と、一対の内フラップ、及び一対の外フラップで構成された蓋部とを備えるラップアラウンド形式の包装箱が開示されている。側板には、操作部と、この操作部から側板と内フラップとの間の折曲線にかけて延びる破断線とが設けられている。また、側板と内フラップとの間の折曲線上には、破断線から天板にかけて切込線が設けられている。 Patent Document 1 discloses a wraparound type packaging box including an outer peripheral portion formed of a bottom plate, a pair of side plates, and a top plate, and a lid portion formed of a pair of inner flaps and a pair of outer flaps. It is done. The side plate is provided with an operating portion and a break line extending from the operating portion to a bending curve between the side plate and the inner flap. Moreover, on the folding line between the side plate and the inner flap, a cutting line is provided from the breaking line to the top plate.
　特許文献１の包装箱では、操作部を操作することで、破断線と切込線に沿って側板を破断する。その後、天板に連続した上側外フラップを操作することで、内フラップから上側外フラップを剥がす。これにより、天板側を展開状態で分離し、底板側をトレイ状とした開封状態とすることができる。 In the packaging box of Patent Document 1, the side plate is broken along the break line and the cut line by operating the operation unit. Thereafter, the upper outer flap is peeled from the inner flap by operating the upper outer flap continuous with the top plate. As a result, the top plate side can be separated in the unfolded state, and the bottom plate side can be in the opened state with the tray shape.
特開２０１２－９１７９９号公報JP 2012-91799 A
　特許文献１の包装箱では、側板を破断するための破断線と、側板と内フラップの間を破断するための切込線とが連続しているため、その連続部分（側板と内フラップの間の稜部）の強度が低下する。よって、搬送中に包装箱を落としたり他の物品が衝突したりすると、稜部が潰れ易い。また、包装箱を積み重ねた場合にも、稜部が潰れる可能性がある。 In the packaging box of Patent Document 1, since the break line for breaking the side plate and the cut line for breaking between the side plate and the inner flap are continuous, the continuous portion (between the side plate and the inner flap) Strength of the buttocks). Therefore, when the packaging box is dropped or other articles collide during transportation, the buttocks are easily crushed. Also, when the packaging boxes are stacked, there is a possibility that the buttocks may be crushed.
　本発明は、開封用の破断部による剛性低下を抑えることが可能な包装箱を提供することを課題とする。 An object of the present invention is to provide a packaging box capable of suppressing a reduction in rigidity due to a broken part for opening.
　本発明の第１態様は、第１辺と、前記第１辺に交差する第２辺を有する第１側板と、前記第１辺と前記第２辺に交差する第３辺を有し、前記第１辺に連設され、前記第１側板に対して折り曲げられた第２側板と、前記第１側板に設けられ、前記第２辺に向けて操作される第１操作部と、前記第１側板に設けられ、前記第１操作部側から前記第１辺に向けて前記第２辺に沿って延び、前記第１操作部の操作により前記第１側板を破断するための第１破断部と、前記第２側板に設けられ、前記第３辺に沿って延び、前記第２側板を破断するための第２破断部と、前記第１側板の前記第１辺上に設けられた切込部とを備え、前記第１破断部の前記第１辺側の端と、前記第２破断部の前記第１辺側の端とは、前記第１側板の前記第１辺が延びる方向に間隔をあけて位置するとともに、定められた第１の間隔をあけて位置し、前記第１破断部の前記端と前記切込部は、前記第１の間隔よりも小さい第２の間隔をあけて位置し、前記第２破断部の前記端と前記切込部は、前記第１の間隔よりも小さい第３の間隔をあけて位置している、包装箱を提供する。 A first aspect of the present invention has a first side plate having a first side, a second side intersecting the first side, and a third side intersecting the first side and the second side, A second side plate continuously connected to the first side and bent with respect to the first side plate, a first operation portion provided on the first side plate, and operated toward the second side, the first side A first breaking portion provided on the side plate, extending along the second side from the side of the first operation portion toward the first side and for breaking the first side plate by the operation of the first operation portion; A second breaking portion provided on the second side plate, extending along the third side, for breaking the second side plate, and a cut portion provided on the first side of the first side plate And a direction in which the first side of the first side plate extends with the end on the first side of the first broken portion and the end on the first side of the second broken portion. Located at a distance and at a defined first distance, the end of the first break and the cut open a second distance smaller than the first distance. The packaging box is provided, wherein the end of the second breaking portion and the cut portion are positioned at a third distance smaller than the first distance.
　この包装箱では、第１操作部を持って操作を行うことで、第１破断部に沿って第１側板を破断する。この第１側板の破断は、第１破断部の端が第２破断部の端よりも切込部の方に近いため、切込部に至ることで止まる。第１操作部の操作を続けると、切込部を起点として、第１側板と第２側板の間が第１辺（稜部）に沿って破断される。その後、第２破断部に沿って第２側板を破断することで、包装箱が開封される。 In this packaging box, the first side plate is broken along the first breaking portion by holding the first operation portion and performing the operation. The breakage of the first side plate is stopped by reaching the cut portion because the end of the first cut portion is closer to the cut portion than the end of the second cut portion. When the operation of the first operation unit is continued, the space between the first side plate and the second side plate is broken along the first side (the ridge portion), starting from the cut portion. Thereafter, the packaging box is opened by breaking the second side plate along the second breaking portion.
　このように、この包装箱によれば、第１破断部、第２破断部、及び切込部の形成位置の設定により、意図した開封形態を実現できる。また、第１破断部と第２破断部とが不連続状態であり、切込部と第１破断部、並びに切込部と第２破断部も不連続状態である。よって、破断線と切込線が連続した従来の包装箱よりも、耐衝撃性を向上できる。つまり、切込部が形成された稜部の強度が過度に低下することはなく、包装箱の剛性低下を抑えることができる。その結果、搬送中に包装箱と落としたり他の物品が衝突したりしても、稜部が潰れることはない。また、包装箱を積み重ねた場合にも、稜部が潰れることはない。しかも、第１破断部の第１辺側の端と第２破断部の第１辺側の端とは第１辺が延びる方向に間隔をあけて位置し、第１破断部と第２破断部は、直線上ではなく段違いで形成されているため、第１破断部と第２破断部を設けることによる包装箱の剛性低下を最小限に抑えることができる。 Thus, according to this packaging box, the intended opening form can be realized by setting the formation positions of the first breaking portion, the second breaking portion, and the incision. Further, the first and second fractured parts are in a discontinuous state, and the incised part and the first fractured part, and the incised part and the second fractured part are also in a discontinuous state. Therefore, the impact resistance can be improved as compared with the conventional packaging box in which the break line and the cut line are continuous. That is, the strength of the buttocks in which the incised portion is formed is not excessively reduced, and the reduction in rigidity of the packaging box can be suppressed. As a result, even if the packaging box is dropped or collides with another item during transportation, the buttocks will not be crushed. Also, when the packaging boxes are stacked, the buttocks will not be crushed. Moreover, the end on the first side of the first broken part and the end on the first side of the second broken part are spaced apart in the direction in which the first side extends, and the first broken part and the second broken part In this case, the rigidity of the packaging box can be minimized due to the provision of the first and second fractured portions, since they are formed not in a straight line but in steps.
　前記第１側板は、対向して一対配置され、前記第２側板は、前記第１側板の両端に対向して一対配置されており、前記第１側板の前記第２辺と、前記第２側板の前記第３辺とにそれぞれ連設された第１連続板と、前記第１側板の前記第２辺と対向する辺と、前記第２側板の前記第３辺と対向する辺とにそれぞれ連設された第２連続板とを更に備え、前記第１破断部と前記第２破断部に沿って、前記第１側板と第２側板を破断するとともに、前記切込部を起点として前記第１辺に沿って前記第１側板と前記第２側板の間を破断することで、前記第１連続板側と前記第２連続板側とに分割される。この態様によれば、第２連続板側をトレイ状とし、第１連続板側を展開状態に解体するという、意図した開封を確実に行うことができる。この開封状態では、取り除いた第１連続板側が展開状態に解体されているため、廃棄する際の利便性を向上できる。 The first side plates are disposed in a pair facing each other, and the second side plates are disposed in a pair facing the both ends of the first side plate, and the second side of the first side plate and the second side plate And a side of the first side plate facing the second side and a side facing the third side of the second side plate. The first side plate and the second side plate are broken along the first breaking portion and the second breaking portion, and the first continuous plate is started from the cut portion as a starting point. By breaking between the first side plate and the second side plate along the side, it is divided into the first continuous plate side and the second continuous plate side. According to this aspect, it is possible to reliably perform the intended unsealing by forming the second continuous plate side into a tray shape and disassembling the first continuous plate side into the unfolded state. In this opened state, since the removed first continuous plate side is disassembled into the expanded state, the convenience at the time of discarding can be improved.
　前記切込部の少なくとも一部は、前記第１破断部及び前記第２破断部よりも、前記第１側板の前記第２辺側へ突出している。この態様によれば、第１破断部又は第２破断部に沿った第１側板又は第２側板の破断を、切込部によって確実に止めることができる。 At least a part of the cut portion protrudes toward the second side of the first side plate with respect to the first and second breaking portions. According to this aspect, breakage of the first side plate or the second side plate along the first breakage portion or the second breakage portion can be reliably stopped by the cut portion.
　前記第２側板には、前記第２側板の前記第３辺に向けて操作される第２操作部が設けられており、前記第２破断部は、前記第２操作部側から前記第１辺に向けて設けられている。この態様によれば、第２操作部を持って操作することで、第２側板を第２破断部に沿って破断できるため、開封作業性を向上できる。 The second side plate is provided with a second operation portion operated toward the third side of the second side plate, and the second broken portion is the first side from the second operation portion side. It is provided toward the According to this aspect, since the second side plate can be broken along the second breaking portion by holding and operating the second operation portion, the unsealing workability can be improved.
　前記第１側板の前記第２辺側に位置する前記切込部の端は、前記第１側板の前記第２辺に対して定められた間隔をあけて位置している。また、前記第１側板の前記第２辺と対向する対向辺側に位置する前記切込部の端は、前記第１側板の前記対向辺に対して定められた間隔をあけて位置している。これらの態様によれば、切込部を設けることによる包装箱の剛性低下を最小限に抑えることができる。 The end of the cut portion positioned on the second side of the first side plate is positioned at a predetermined distance from the second side of the first side plate. Further, the end of the cut portion located on the opposite side opposite to the second side of the first side plate is located at a predetermined distance from the opposite side of the first side plate. . According to these aspects, it is possible to minimize the reduction in the rigidity of the packaging box due to the provision of the incisions.
　本発明の第２態様は、内フラップと、前記内フラップの第１辺に交差する第２辺を有し、前記内フラップの外面に固着され、前記第２辺に向けて開封操作される第１外フラップと、前記内フラップの前記第１辺と前記第１外フラップの前記第２辺と交差する第３辺を有し、前記内フラップの前記第１辺に連設され、前記内フラップに対して折り曲げられた側板と、前記内フラップに設けられ、前記内フラップの前記第１辺と対向する先端側から前記第１辺に向けて前記第１外フラップの前記第２辺に沿って延び、前記第１外フラップの操作により前記内フラップを破断するための第１破断部と、前記側板に設けられ、前記第３辺に沿って延び、前記側板を破断するための第２破断部と、前記内フラップの前記第１辺上に設けられた切込部とを備え、前記第１破断部の前記第１辺側の端と、前記第２破断部の前記第１辺側の端とは、前記第１側板の前記第１辺が延びる方向に間隔をあけて位置するとともに、定められた第１の間隔をあけて位置し、前記第１破断部の前記端と前記切込部は、前記第１の間隔よりも小さい第２の間隔をあけて位置し、前記第２破断部の前記端と前記切込部は、前記第１の間隔よりも小さい第３の間隔をあけて位置している、包装箱を提供する。 A second aspect of the present invention has an inner flap and a second side intersecting the first side of the inner flap, is fixed to the outer surface of the inner flap, and is opened toward the second side. (I) an outer flap, and a third side intersecting the first side of the inner flap and the second side of the first outer flap, and continuously provided to the first side of the inner flap; Along the second side of the first outer flap toward the first side from the tip side of the inner flap that is provided on the side plate bent with respect to the inner flap and that is opposed to the first side of the inner flap A first breaking portion for breaking the inner flap by the operation of the first outer flap, and a second breaking portion provided on the side plate for extending along the third side and breaking the side plate And a notch provided on the first side of the inner flap The end of the first side of the first broken portion and the end of the first side of the second broken portion are spaced apart in the direction in which the first side of the first side plate extends. And positioned with a defined first spacing, the end of the first break and the cut having a second spacing smaller than the first spacing, The packaging box is provided, wherein the end of the second fracture portion and the cut portion are positioned at a third distance smaller than the first distance.
　この包装箱では、第１外フラップを持って操作を行うことで、第１破断部に沿って内フラップを破断する。この内フラップの破断は、第１破断部の端が第２破断部の端よりも切込部の方に近いため、切込部に至ることで止まる。第１外フラップの操作を続けると、切込部を起点として、内フラップと側板の間が第１辺（稜部）に沿って破断される。その後、第２破断部に沿って側板を破断することで、包装箱が開封される。そして、この第２態様の包装箱では、第１態様の包装箱と同様の効果を得ることができる。 In this packaging box, the operation is performed with the first outer flap to break the inner flap along the first breaking portion. The fracture of the inner flap is stopped by reaching the incision since the end of the first fracture is closer to the incision than the end of the second fracture. When the operation of the first outer flap is continued, the space between the inner flap and the side plate is broken along the first side (the buttocks) starting from the incision. Thereafter, the packaging box is opened by breaking the side plate along the second breaking portion. And in the packaging box of this 2nd aspect, the effect similar to the packaging box of a 1st aspect can be acquired.
　対向配置された一対の前記内フラップと、前記内フラップにそれぞれ固着された前記第１外フラップと、前記内フラップの前記第１辺に沿って前記第１外フラップに並べて前記内フラップにそれぞれ固着された第２外フラップとを有し、間隔をあけて対向配置された一対の前記側板の両端に対向配置された一対の蓋部と、前記第１外フラップと前記側板にそれぞれ連設された第１連続板と、前記第２外フラップと前記側板にそれぞれ連設された第２連続板とを更に備え、前記第１破断部と前記第２破断部に沿って、前記内フラップと前記側板を破断するとともに、前記切込部を起点として前記第１辺に沿って前記内フラップと前記側板の間を破断することで、前記第１連続板側と前記第２連続板側とに分割される。この態様によれば、第２連続板側をトレイ状とし、第１連続板側を展開状態に解体するという、意図した開封を確実に行うことができる。この開封状態では、取り除いた第１連続板側が展開状態に解体されているため、廃棄する際の利便性を向上できる。 A pair of oppositely arranged inner flaps, the first outer flaps fixed to the inner flaps respectively, and the first outer flaps along the first side of the inner flaps aligned with the first flaps and fixed to the inner flaps respectively And a pair of lid portions disposed opposite to both ends of the pair of side plates opposed to each other at a distance, and the first outer flap and the side plate are continuously provided. The apparatus further comprises a first continuous plate, a second continuous plate connected to the second outer flap and the side plate, and the inner flap and the side plate along the first broken portion and the second broken portion. Is divided into the first continuous plate side and the second continuous plate side by breaking the space between the inner flap and the side plate along the first side starting from the cut portion. . According to this aspect, it is possible to reliably perform the intended unsealing by forming the second continuous plate side into a tray shape and disassembling the first continuous plate side into the unfolded state. In this opened state, since the removed first continuous plate side is disassembled into the expanded state, the convenience at the time of discarding can be improved.
　本発明の包装箱では、第１破断部と第２破断部とが不連続状態であり、切込部と第１破断部、並びに切込部と第２破断部も不連続状態であるため、破断線と切込線が連続した従来の包装箱よりも、耐衝撃性を向上できる。よって、切込部が形成された稜部の過度の強度低下を防止できるため、包装箱の剛性低下を抑えることができ、切込部を形成した稜部が潰れることを確実に防止できる。しかも、第１破断部と第２破断部が直線上ではなく段違いで形成されているため、第１破断部と第２破断部を設けることによる包装箱の剛性低下を最小限に抑えることができる。 In the packaging box of the present invention, the first and second fractured parts are in a discontinuous state, and the incised part and the first fractured part, and the incised part and the second fractured part are also in a discontinuous state, The impact resistance can be improved over the conventional packaging box in which the break line and the cut line are continuous. Therefore, since it is possible to prevent an excessive reduction in strength of the ridge portion in which the cut portion is formed, it is possible to suppress a decrease in rigidity of the packaging box and to reliably prevent the ridge portion in which the cut portion is formed from being crushed. And since the 1st fracture part and the 2nd fracture part are not formed on a straight line but in a step difference, the rigid fall of the packaging box by providing the 1st fracture part and the 2nd fracture part can be minimized. .
第１実施形態の包装箱の斜視図。The perspective view of the packaging box of 1st Embodiment. 図１の包装箱のブランクを示す平面図。The top view which shows the blank of the packaging box of FIG. 図２の一部拡大図。The elements on larger scale of FIG. 開封作業の一工程を示す斜視図。The perspective view which shows 1 process of opening operation. 開封作業の他の一工程を示す斜視図。The perspective view which shows one process of opening operation. 図１の包装箱の開封状態を示す斜視図。The perspective view which shows the unopened state of the packaging box of FIG. 第２実施形態の包装箱の斜視図。The perspective view of the packaging box of 2nd Embodiment. 図７の断面図。FIG. 8 is a cross-sectional view of FIG. 図７の包装箱のブランクを示す平面図。The top view which shows the blank of the packaging box of FIG. 図９の一部拡大図。The elements on larger scale of FIG. 開封作業の一工程を示す斜視図。The perspective view which shows 1 process of opening operation. 図７の包装箱の開封状態を示す斜視図。The perspective view which shows the unopened state of the packaging box of FIG. 包装箱の変形例のブランクの一部拡大図。The elements on larger scale of the blank of the modification of a packaging box. 包装箱の他の変形例のブランクの一部拡大図。The elements on larger scale of the blank of the other modification of a packaging box. 包装箱の他の変形例のブランクの一部拡大図。The elements on larger scale of the blank of the other modification of a packaging box. 包装箱の他の変形例のブランクの一部拡大図。The elements on larger scale of the blank of the other modification of a packaging box. 包装箱の他の変形例のブランクの一部拡大図。The elements on larger scale of the blank of the other modification of a packaging box. 包装箱の他の変形例のブランクの一部拡大図。The elements on larger scale of the blank of the other modification of a packaging box. 包装箱の他の変形例のブランクの一部拡大図。The elements on larger scale of the blank of the other modification of a packaging box. 第１実施形態の包装箱の変形例を示す斜視図。The perspective view which shows the modification of the packaging box of 1st Embodiment. 第２実施形態の包装箱の変形例を示す斜視図。The perspective view which shows the modification of the packaging box of 2nd Embodiment.
　以下、本発明の実施の形態を図面に従って説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
（第１実施形態）
　図１から図６は、本発明の第１実施形態に係る包装箱１０を示す。図１に示すように、この包装箱１０は、四角筒状の外周部１２と、外周部１２の下端開口を塞ぐ下蓋部（第２連続板）１８と、外周部１２の上端開口を塞ぐ上蓋部（第１連続板）２４とを備える汎用ケースである。外周部１２には、開封用の破断部３５，４２と切込部４４が設けられている。本実施形態では、破断部３５，４２と切込部４４を設けることで、包装箱１０の意図した開封と、包装箱１０の剛性低下の抑制の両立を図る。 First Embodiment
1 to 6 show a packaging box 10 according to a first embodiment of the present invention. As shown in FIG. 1, the packaging box 10 has a rectangular cylindrical outer peripheral portion 12, a lower lid portion (second continuous plate) 18 that closes the lower end opening of the outer peripheral portion 12, and an upper end opening of the outer peripheral portion 12. It is a general-purpose case provided with an upper lid (first continuous plate) 24. The outer peripheral portion 12 is provided with tear-off portions 35 and 42 and a cut-in portion 44 for opening. In the present embodiment, by providing the broken parts 35 and 42 and the cut part 44, both the intended opening of the packaging box 10 and the suppression of the reduction in the rigidity of the packaging box 10 can be achieved.
（包装箱の概要）
　包装箱１０は、図２に示す一枚のブランクを所定部位で折り曲げて固着することで形成されている。ブランクは、周知の紙器打抜装置によって紙製の段ボールシートを打ち抜いて形成されている。段ボールシートは、表ライナと裏ライナの間に波状の中しんを配設した構成である。図２中の一点鎖線は、肉厚を圧縮するように裏ライナの方から罫を入れて形成した汎用罫線である。図２中の実線は、裏ライナから表ライナにかけて刃を入れて形成した切断線、及び打ち抜きによる形状線（辺）である。なお、後述する図９中の二点鎖線は、肉厚を圧縮するように表ライナの方から罫を入れて形成した逆罫線である。 (Overview of packaging box)
The packaging box 10 is formed by bending and fixing a single blank shown in FIG. 2 at a predetermined portion. The blank is formed by punching out a cardboard sheet made of paper by a well-known carton punching device. The corrugated cardboard sheet has a configuration in which a corrugated centerline is disposed between the front liner and the back liner. The dashed-dotted line in FIG. 2 is a general-purpose ruled line formed by scoring from the side of the back liner so as to compress the thickness. The solid line in FIG. 2 is a cutting line formed by inserting a blade from the back liner to the front liner and a shape line (side) by punching. In addition, the dashed-two dotted line in FIG. 9 mentioned later is the reverse ruled line which put and formed the scribe from the direction of front liner so that thickness may be compressed.
　以下の説明では、包装箱１０の長手方向をＸ方向といい、包装箱１０の短手方向をＹ方向といい、包装箱１０の高さ方向をＺ方向という。但し、包装箱１０によっては、Ｘ方向とＹ方向が同一寸法で形成される場合もあり、このような態様も本発明に含まれる。 In the following description, the longitudinal direction of the packaging box 10 is referred to as the X direction, the short direction of the packaging box 10 is referred to as the Y direction, and the height direction of the packaging box 10 is referred to as the Z direction. However, depending on the packaging box 10, the X direction and the Y direction may be formed in the same dimension, and such an embodiment is also included in the present invention.
　図１に示すように、包装箱１０は、一対の端板（第１側板）１３Ａ，１３Ｂと、一対の側板（第２側板）１４Ａ，１４Ｂとを備える。端板１３Ａ，１３Ｂは、ＹＺ平面に沿って延びる概ね同一の四角形状であり、Ｘ方向に間隔をあけて側板１４Ａ，１４Ｂの両端に対向配置されている。側板１４Ａ，１４Ｂは、ＺＸ平面に沿って延びる概ね同一の四角形状であり、Ｙ方向に間隔をあけて端板１３Ａ，１３Ｂの両端に対向配置されている。 As shown in FIG. 1, the packaging box 10 includes a pair of end plates (first side plates) 13A and 13B and a pair of side plates (second side plates) 14A and 14B. The end plates 13A and 13B have substantially the same rectangular shape extending along the YZ plane, and are arranged to face both ends of the side plates 14A and 14B at intervals in the X direction. The side plates 14A and 14B have substantially the same rectangular shape extending along the ZX plane, and are arranged to face both ends of the end plates 13A and 13B at intervals in the Y direction.
　図２を参照すると、側板１４Ａ、端板１３Ａ、側板１４Ｂ、及び端板１３Ｂは、この順で左側から、汎用罫線からなる折曲線１６を介して連設されている。図２において、左端に位置する側板１４Ａには、右端に位置する端板１３Ｂに貼着するための貼着板１５が、折曲線１６を介して連設されている。折曲線１６の形成部分は、端板１３Ａ，１３Ｂの第１辺である。 Referring to FIG. 2, the side plate 14A, the end plate 13A, the side plate 14B, and the end plate 13B are connected in this order from the left side via a fold line 16 formed of a general ruled line. In FIG. 2, a sticking plate 15 for sticking to the end plate 13 </ b> B positioned at the right end is continuously provided via a fold line 16 on the side plate 14 </ b> A positioned at the left end. The portion where the fold line 16 is formed is the first side of the end plates 13A and 13B.
　図６に示すように、下蓋部（第２連続板）１８は、一対の内フラップ１９Ａ，１９Ｂと、一対の外フラップ２１Ａ，２１Ｂとを備える。図２を併せて参照すると、内フラップ１９Ａ，１９Ｂは、概ね同一の四角形状であり、汎用罫線からなる折曲線２０を介して、端板１３Ａ，１３Ｂの下辺（第２辺と対向する辺）に連設されている。外フラップ２１Ａ，２１Ｂは、概ね同一の四角形状であり、汎用罫線からなる折曲線２２を介して、側板１４Ａ，１４Ｂの下辺（第３辺と対向する辺）に連設されている。 As shown in FIG. 6, the lower lid (second continuous plate) 18 includes a pair of inner flaps 19A, 19B and a pair of outer flaps 21A, 21B. Referring also to FIG. 2, the inner flaps 19A and 19B have substantially the same rectangular shape, and the lower side (the side opposite to the second side) of the end plates 13A and 13B via a folding line 20 made of general-purpose ruled lines. It is connected to the The outer flaps 21A and 21B have substantially the same rectangular shape, and are continuously provided on the lower side (side opposite to the third side) of the side plates 14A and 14B via a fold line 22 formed of general-purpose ruled lines.
　図１に示すように、上蓋部（第１連続板）２４は、一対の内フラップ２５Ａ，２５Ｂと、一対の外フラップ２７Ａ，２７Ｂとを備える。図２を併せて参照すると、内フラップ２５Ａ，２５Ｂは、概ね同一の四角形状であり、汎用罫線からなる折曲線２６を介して、端板１３Ａ，１３Ｂの上辺（第２辺）に連設されている。外フラップ２７Ａ，２７Ｂは、概ね同一の四角形状であり、汎用罫線からなる折曲線２８を介して、側板１４Ａ，１４Ｂの上辺（第３辺）に連設されている。 As shown in FIG. 1, the upper lid portion (first continuous plate) 24 includes a pair of inner flaps 25A, 25B and a pair of outer flaps 27A, 27B. Referring also to FIG. 2, the inner flaps 25A and 25B are substantially the same rectangular shape, and are continuously connected to the upper side (second side) of the end plates 13A and 13B via a folding line 26 formed of general-purpose ruled lines. ing. The outer flaps 27A and 27B have substantially the same rectangular shape, and are continuously provided on the upper side (third side) of the side plates 14A and 14B via a folding line 28 formed of general-purpose ruled lines.
　包装箱１０は、端板１３Ａに対して側板１４Ａが１８０度折り曲げられ、側板１４Ｂに対して端板１３Ｂが１８０度折り曲げられ、重なり合う貼着板１５と端板１３Ｂが、例えば酢酸ビニルエマルジョン系の接着剤によって固着された状態で、出荷される。 In the packaging box 10, the side plate 14A is bent 180 degrees with respect to the end plate 13A, the end plate 13B is bent 180 degrees with respect to the side plate 14B, and the overlapping adhesive plate 15 and the end plate 13B are, for example, vinyl acetate emulsion systems. It is shipped in a state of being fixed by an adhesive.
　包装箱１０を使用する際には、折曲線１６に沿って端板１３Ａ、側板１４Ａ、端板１３Ｂ、及び側板１４Ｂを折り曲げ、外周部１２を四角筒状とする。 When using the packaging box 10, the end plate 13A, the side plate 14A, the end plate 13B, and the side plate 14B are bent along the folding line 16 so that the outer peripheral portion 12 has a square tubular shape.
　次に、端板１３Ａ，１３Ｂに対して内フラップ１９Ａ，１９Ｂを側板１４Ａ，１４Ｂと同じ向きに折り曲げた後、側板１４Ａ，１４Ｂに対して外フラップ２１Ａ，２１Ｂを端板１３Ａ，１３Ｂと同じ向きに折り曲げる（図６参照）。そして、これらの重なり合った部分を接着剤で固着、又は外フラップ２１Ａ，２１Ｂの先端を粘着テープで固着することで、外周部１２の下端開口を閉塞する。この状態で包装箱１０の内部に物品を収容する。 Next, after bending the inner flaps 19A and 19B in the same direction as the side plates 14A and 14B with respect to the end plates 13A and 13B, the outer flaps 21A and 21B have the same direction as the end plates 13A and 13B with respect to the side plates 14A and 14B. Fold into (see Figure 6). The lower end opening of the outer peripheral portion 12 is closed by fixing the overlapped portions with an adhesive or fixing the tips of the outer flaps 21A and 21B with an adhesive tape. In this state, the articles are accommodated inside the packaging box 10.
　物品の収容後、端板１３Ａ，１３Ｂに対して内フラップ２５Ａ，２５Ｂを側板１４Ａ，１４Ｂと同じ向きに折り曲げた後、側板１４Ａ，１４Ｂに対して外フラップ２７Ａ，２７Ｂを端板１３Ａ，１３Ｂと同じ向きに折り曲げる。そして、下蓋部１８と同様に、外周部１２の上端開口を上蓋部２４で閉塞する。 After housing the articles, the inner flaps 25A, 25B are bent in the same direction as the side plates 14A, 14B with respect to the end plates 13A, 13B, and then the outer flaps 27A, 27B are made with the end plates 13A, 13B with the side plates 14A, 14B. Bend in the same direction. Then, the upper end opening of the outer peripheral portion 12 is closed by the upper lid portion 24 in the same manner as the lower lid portion 18.
（開封用破断部の構造）
　図１及び図６に示すように、包装箱１０には、上蓋部２４側と下蓋部１８側に二分割するために、第１操作部３０、第１破断部３５、第２操作部３７、及び第２破断部４２が設けられている。また、包装箱１０には、上蓋部２４側と下蓋部１８側の分割と同時に、上蓋部２４側を展開状態に解体するために、切込部４４が設けられている。第１操作部３０と第１破断部３５は端板１３Ａ，１３Ｂにそれぞれ形成され、第２操作部３７と第２破断部４２は側板１４Ａ，１４Ｂにそれぞれ形成されている。切込部４４は、端板１３Ａ，１３Ｂと側板１４Ａ，１４Ｂの間の折曲線１６上にそれぞれ形成されている。 (Structure of opening for opening)
As shown in FIGS. 1 and 6, in order to divide the packaging box 10 into two parts, the upper lid 24 side and the lower lid 18 side, a first operation part 30, a first broken part 35, and a second operation part 37. , And a second breaking portion 42 are provided. Further, in the packaging box 10, at the same time as the division on the upper lid 24 side and the lower lid 18 side, a cutaway portion 44 is provided in order to disassemble the upper lid 24 side into the expanded state. The first operation portion 30 and the first broken portion 35 are respectively formed on the end plates 13A and 13B, and the second operation portion 37 and the second broken portion 42 are respectively formed on the side plates 14A and 14B. The notches 44 are respectively formed on the fold line 16 between the end plates 13A and 13B and the side plates 14A and 14B.
　図１及び図２に示すように、第１操作部３０は、折曲線３１、一対の第１破断線３２，３２、及び第２破断線３３によって構成され、内フラップ２５Ａ，２５Ｂが連設された折曲線（第２辺）２６に向けて操作される。折曲線３１は、汎用罫線からなり、折曲線２６に沿ってＹ方向に延びている。第１破断線３２は、２以上の切断線からなり、折曲線３１の両端からＹ方向へ円弧状に延びている。第２破断線３３は、２以上の切断線からなり、一対の第１破断線３２，３２のＹ方向の外端のうち、一方から他方へ円弧状に延びている。本実施形態では、端板１３Ａの第１操作部３０は側板１４Ａの方へ偏った位置に設けられ、端板１３Ｂの第１操作部３０は側板１４Ｂの方へ偏った位置に設けられている。 As shown in FIGS. 1 and 2, the first operation portion 30 is constituted by a fold line 31, a pair of first broken lines 32, 32 and a second broken line 33, and the inner flaps 25A, 25B are continuously provided. It is operated toward the bent line (second side) 26. The fold line 31 is a general ruled line and extends in the Y direction along the fold line 26. The first breaking line 32 is composed of two or more cutting lines, and extends from both ends of the folding line 31 in an arc shape in the Y direction. The second breaking line 33 is composed of two or more cutting lines, and extends in an arc shape from one of the outer ends of the pair of first breaking lines 32, 32 in the Y direction to the other. In the present embodiment, the first operation portion 30 of the end plate 13A is provided at a position biased toward the side plate 14A, and the first operation portion 30 of the end plate 13B is provided at a position biased toward the side plate 14B. .
　第１破断部３５は、第１操作部３０の操作により端板１３Ａ，１３Ｂを破断するために設けられている。この第１破断部３５は、所定間隔をあけて設けた複数の切断線からなり、第１操作部３０のＹ方向両側にそれぞれ設けられている。第１破断部３５は、第１操作部３０から折曲線１６に向けて、折曲線２６に沿って延びている。また、第１破断部３５は、端板１３Ｂの内面に一体化された貼着板１５にも形成されている。全体として第１破断部３５は、直線状に形成されているが、円弧状に形成してもよいし、波状に形成してもよいし、その形状は必要に応じて変更が可能である。 The first breaking portion 35 is provided to break the end plates 13A and 13B by the operation of the first operation portion 30. The first breaking portions 35 are formed of a plurality of cutting lines provided at predetermined intervals, and are provided on both sides of the first operation portion 30 in the Y direction. The first breaking portion 35 extends along the fold line 26 from the first operation portion 30 toward the fold line 16. Moreover, the 1st fracture | rupture part 35 is also formed in the sticking board 15 integrated with the inner surface of the end plate 13B. As a whole, the first fractured portion 35 is formed in a linear shape, but may be formed in an arc shape or may be formed in a wave shape, and the shape can be changed as needed.
　第２操作部３７は、折曲線３８、一対の第１破断線３９，３９、及び第２破断線４０によって構成され、外フラップ２７Ａ，２７Ｂが連設された折曲線（第３辺）２８に向けて操作される。折曲線３８は、汎用罫線からなり、折曲線２８に沿ってＸ方向に延びている。第１破断線３９は、２以上の切断線からなり、折曲線３８の両端からＸ方向へ円弧状に延びている。第２破断線４０は、２以上の切断線からなり、一対の第１破断線３９，３９のＸ方向の外端のうち、一方から他方へ円弧状に延びている。第２操作部３７は、側板１４Ａ，１４ＢのＸ方向の中央に設けられている。また、第２操作部３７は、第１操作部３０よりも下蓋部１８側（操作する向きの反対側）に配置されている。 The second operation portion 37 is constituted by a folding line 38, a pair of first breaking lines 39, 39, and a second breaking line 40, and is connected to a folding line (third side) 28 in which the outer flaps 27A, 27B are connected. It is operated towards. The fold line 38 is a general ruled line and extends in the X direction along the fold line 28. The first breaking line 39 is composed of two or more cutting lines, and extends from both ends of the bending line 38 in an arc shape in the X direction. The second breaking line 40 is composed of two or more cutting lines, and extends in an arc shape from one of the outer ends in the X direction of the pair of first breaking lines 39, 39 to the other. The second operation unit 37 is provided at the center of the side plates 14A and 14B in the X direction. The second operation unit 37 is disposed closer to the lower lid 18 than the first operation unit 30 (opposite to the direction in which the operation is performed).
　第２破断部４２は、第２操作部３７の操作により側板１４Ａ，１４Ｂを破断するために設けられている。この第２破断部４２は、所定間隔をあけて設けた複数の切断線からなり、第２操作部３７のＸ方向両側にそれぞれ設けられている。第２破断部４２は、第２操作部３７から折曲線１６に向けて、折曲線２８に沿って延びている。また、第２破断部４２は、第１破断部３５よりも下蓋部１８側（操作する向きの反対側）に配置されている。つまり、第１破断部３５と第２破断部４２は、折曲線１６が延びるＺ方向に間隔をあけて設けられている。これにより、第１破断部３５の折曲線１６側の端３５ｂと、第２破断部４２の折曲線１６側の端３５ｂとは、折曲線１６が延びるＺ方向に間隔をあけて位置する。全体として第２破断部４２は、直線状に形成されているが、円弧状に形成してもよいし、波状（図１５参照）に形成してもよいし、その形状は必要に応じて変更が可能である。　 The second breaking portion 42 is provided to break the side plates 14A and 14B by the operation of the second operation portion 37. The second fractured portion 42 is composed of a plurality of cutting lines provided at predetermined intervals, and is provided on both sides of the second operation portion 37 in the X direction. The second breaking portion 42 extends along the fold line 28 from the second operation portion 37 toward the fold line 16. In addition, the second breakage portion 42 is disposed closer to the lower lid portion 18 than the first breakage portion 35 (opposite to the operation direction). That is, the first breaking portion 35 and the second breaking portion 42 are provided at an interval in the Z direction in which the folding line 16 extends. As a result, the end 35b of the first breaking portion 35 on the bending curve 16 side and the end 35b of the second breaking portion 42 on the bending curve 16 side are spaced apart in the Z direction in which the bending curve 16 extends. As a whole, the second fractured portion 42 is formed in a linear shape, but may be formed in an arc shape or may be formed in a wave shape (see FIG. 15), and the shape may be changed as necessary Is possible.
　切込部４４は、折曲線１６に沿って延びる切断線からなり、第１破断部３５と第２破断部４２の間に形成されている。図３を参照すると、上蓋部２４側（操作する向きの前側）に位置する切込部４４の端４４ａは、上蓋部２４側に位置する第１破断部３５よりも上方に位置している。つまり、切込部４４の上部は、第１破断部３５及び第２破断部４２よりも、上蓋部２４側へ突出している。下蓋部１８側（操作する向きの反対側）に位置する切込部４４の端４４ｂは、Ｚ方向において第１破断部３５と第２破断部４２の間に位置している。 The notch 44 is a cutting line extending along the fold line 16 and is formed between the first breaking portion 35 and the second breaking portion 42. Referring to FIG. 3, the end 44 a of the notch 44 located on the upper lid 24 side (the front side in the operating direction) is located above the first fractured part 35 located on the upper lid 24. That is, the upper portion of the cut portion 44 protrudes toward the upper lid portion 24 more than the first cut portion 35 and the second cut portion 42. An end 44 b of the notch 44 located on the lower lid 18 side (opposite to the operating direction) is located between the first breaking portion 35 and the second breaking portion 42 in the Z direction.
（開封用破断部の詳細）
　図１及び図２に示すように、第１破断部３５の第１操作部３０側の端３５ａは、第１操作部３０の第１破断線３２と第２破断線３３の交点に位置されている。第２破断部４２の第２操作部３７側の端４２ａは、第２操作部３７の第１破断線３９と第２破断線４０の交点に位置されている。但し、これらの端３５ａ，４２ａは、操作部３０，３７の操作によって、破断部３５，４２に沿った外周部１２の破断を実現できる範囲で、間隔をあけて配置してもよい。 (Details of broken part for opening)
As shown in FIGS. 1 and 2, the end 35 a of the first break portion 35 on the side of the first operation portion 30 is located at the intersection of the first break line 32 and the second break line 33 of the first operation portion 30. There is. An end 42 a of the second broken part 42 on the second operation part 37 side is located at an intersection of the first broken line 39 and the second broken line 40 of the second operation part 37. However, the ends 35a and 42a may be arranged at intervals as long as breakage of the outer peripheral portion 12 along the broken portions 35 and 42 can be realized by the operation of the operation units 30 and 37.
　図３に示すように、第１破断部３５の折曲線１６側の端３５ｂと、第２破断部４２の折曲線１６側の端４２ｂとは、定められた第１の間隔Ａをあけて位置されている。この第１の間隔Ａは、ブランクの状態での第１破断部３５の端３５ｂと第２破断部４２の端４２ｂとの直線距離（沿面距離）に基づいて設定されている。 As shown in FIG. 3, the end 35 b of the first breaking portion 35 on the bending line 16 side and the end 42 b of the second breaking portion 42 on the bending line 16 side are spaced apart from each other by a predetermined first distance A. It is done. The first distance A is set based on the linear distance (creeping distance) between the end 35 b of the first broken portion 35 and the end 42 b of the second broken portion 42 in the blank state.
　第１破断部３５の端３５ｂと切込部４４は、定められた第２の間隔Ｂをあけて位置されている。また、第２破断部４２の端４２ｂと切込部４４は、定められた第３の間隔Ｃをあけて位置されている。第２の間隔Ｂと第３の間隔Ｃとは、端３５ｂ，４２ｂから切込部４４までの最短の沿面距離に基づいて設定されている。つまり、本実施形態の第２の間隔Ｂは、第１破断部３５の端３５ｂから切込部４４に直交する、第１破断部３５の延長線の寸法に相当する。また、第３の間隔Ｃは、第２破断部４２の端４２ｂから切込部４４の端４４ｂまでの距離に相当する。 The end 35 b of the first breaking portion 35 and the cutting portion 44 are positioned at a predetermined second distance B. Further, the end 42 b of the second broken portion 42 and the cut portion 44 are positioned at a predetermined third distance C. The second distance B and the third distance C are set based on the shortest creeping distance from the ends 35 b and 42 b to the cutout 44. That is, the second interval B of the present embodiment corresponds to the dimension of the extension line of the first broken part 35 which is orthogonal to the cut part 44 from the end 35 b of the first broken part 35. The third distance C corresponds to the distance from the end 42 b of the second broken portion 42 to the end 44 b of the cut portion 44.
　第２の間隔Ｂは、第１の間隔Ａよりも小さく設定され（Ａ＞Ｂ）、第３の間隔Ｃは、第１の間隔Ａよりも小さく設定されている（Ａ＞Ｃ）。これにより、第１破断部３５に沿った端板１３Ａ，１３Ｂの破断が、近くに位置する切込部４４で停止し、引き続いて第２破断部４２に沿って側板１４Ａ，１４Ｂが破断されることを防止している。また、第２破断部４２に沿った側板１４Ａ，１４Ｂの破断が、近くに位置する切込部４４で停止し、引き続いて第１破断部３５に沿って端板１３Ａ，１３Ｂが破断されることを防止している。 The second interval B is set smaller than the first interval A (A> B), and the third interval C is set smaller than the first interval A (A> C). As a result, breakage of the end plates 13A and 13B along the first breakage portion 35 is stopped at the notches 44 located near and the side plates 14A and 14B are subsequently broken along the second breakage portion 42. To prevent that. Further, breakage of the side plates 14A and 14B along the second breakage portion 42 is stopped at the notched portion 44 located near and the end plates 13A and 13B are subsequently broken along the first breakage portion 35. To prevent.
　第２の間隔Ｂと第３の間隔Ｃとは、次のように設定されている。第２の間隔Ｂと第３の間隔Ｃとを過剰に小さく設定すると、端板１３Ａ，１３Ｂと側板１４Ａ，１４Ｂの間の稜部の強度が低下するため、好ましくない。また、第２の間隔Ｂと第３の間隔Ｃとを過剰に大きく設定すると、破断部３５，４２に沿った外周部１２の破断が、端３５ｂ，４２ｂから切込部４４以外の意図しない部分に進むため、好ましくはない。そこで、稜部の強度低下を抑えつつ、外周部１２の破断を切込部４４で止めるために、第２の間隔Ｂと第３の間隔Ｃとは、０．５ｍｍ以上２０ｍｍ以下に設定されている。 The second interval B and the third interval C are set as follows. If the second distance B and the third distance C are set excessively small, the strength of the ridge between the end plates 13A and 13B and the side plates 14A and 14B is unfavorably reduced. In addition, if the second distance B and the third distance C are set too large, breakage of the outer peripheral portion 12 along the breakage portions 35 and 42 is an unintended portion other than the end 35 b and 42 b and the incision 44 It is not desirable to go to Therefore, the second interval B and the third interval C are set to 0.5 mm or more and 20 mm or less in order to stop the breakage of the outer peripheral portion 12 at the cut portion 44 while suppressing the strength reduction of the buttocks. There is.
　また、切込部４４の全長Ｌ１は、次のように設定されている。切込部４４の全長Ｌ１を過剰に短く設定すると、前述と同様に、破断部３５，４２に沿った外周部１２の破断が、端３５ｂ，４２ｂから切込部４４以外の意図しない部分に進むため、好ましくはない。また、切込部４４の全長Ｌ１を過剰に長く設定すると、包装箱１０のＺ方向の圧縮強度が低下するため、好ましくはない。そこで、圧縮強度の低下を抑えつつ、外周部１２の破断を切込部４４で止めるために、切込部４４の全長Ｌ１は、２ｍｍ以上２０ｍｍ以下に設定されている。なお、本実施形態の折曲線１６の全長Ｌ２（包装箱１０の全高）は１４６ｍｍである。 Moreover, the full length L1 of the cutting part 44 is set as follows. If the total length L1 of the incised portion 44 is set excessively short, the fracture of the outer peripheral portion 12 along the fractured portions 35 and 42 proceeds from the ends 35b and 42b to unintended portions other than the incised portion 44 as described above Therefore, it is not preferable. In addition, if the total length L1 of the incised portion 44 is set to be excessively long, the Z-direction compressive strength of the packaging box 10 is reduced, which is not preferable. Therefore, in order to stop the breakage of the outer peripheral portion 12 at the incised portion 44 while suppressing the decrease in the compressive strength, the total length L1 of the incised portion 44 is set to 2 mm or more and 20 mm or less. In addition, full length L2 (full height of the packaging box 10) of the folding curve 16 of this embodiment is 146 mm.
　図１及び図２に示すように、上蓋部２４側に位置する切込部４４の端４４ａは、折曲線２６に対して定められた間隔Ｄ１をあけて位置している。また、下蓋部１８側に位置する切込部４４の端４４ｂは、折曲線２０に対して定められた間隔Ｄ２をあけて位置している。これらの間隔Ｄ１，Ｄ２は、次のように設定されている。間隔Ｄ１，Ｄ２を過剰に小さくすると、端板１３Ａ，１３Ｂのいずれかと、側板１４Ａ，１４Ｂのいずれかと、下蓋部１８及び上蓋部２４のいずれかとが交わる角部の強度が低下するため、好ましくない。そこで、包装箱１０の角部の強度低下を抑えるために、間隔Ｄ１，Ｄ２は、３０ｍｍ以上に設定されている。 As shown in FIGS. 1 and 2, the end 44 a of the notch 44 located on the upper lid 24 side is located at a predetermined interval D 1 with respect to the folding line 26. Further, the end 44 b of the notch 44 located on the lower lid 18 side is located at a predetermined interval D 2 with respect to the bending curve 20. These intervals D1 and D2 are set as follows. If the intervals D1 and D2 are excessively reduced, the strength at the corner where one of the end plates 13A and 13B, one of the side plates 14A and 14B, and one of the lower lid portion 18 and the upper lid portion 24 decreases. Absent. Then, in order to suppress the strength reduction of the corner of packaging box 10, interval D1, D2 is set as 30 mm or more.
　このように、第１破断部３５と第２破断部４２は不連続状態で形成され、切込部４４と第１破断部３５、並びに切込部４４と第２破断部４２も不連続状態で形成されている。よって、破断線と切込線が連続した従来の包装箱よりも、耐衝撃性を向上できる。詳しくは、包装箱１０を開封するための第１破断部３５、第２破断部４２、及び切込部４４を設けることにより、端板１３Ａ，１３Ｂと側板１４Ａ，１４Ｂの間の稜部の強度が過度に低下することを防止できる。また、包装箱１０の剛性低下を最小限に抑えることができる。その結果、搬送中に包装箱１０と落としたり他の物品が衝突したりしても、稜部が潰れることはない。また、包装箱１０を積み重ねた場合にも、稜部が潰れることはない。 Thus, the first fracture portion 35 and the second fracture portion 42 are formed in a discontinuous state, and the incised portion 44 and the first fracture portion 35, as well as the incised portion 44 and the second fracture portion 42 are also discontinuous. It is formed. Therefore, the impact resistance can be improved as compared with the conventional packaging box in which the break line and the cut line are continuous. Specifically, the strength of the ridge between the end plates 13A and 13B and the side plates 14A and 14B is provided by providing the first fractured portion 35, the second fractured portion 42, and the notched portion 44 for opening the packaging box 10. Can be prevented from falling excessively. In addition, the reduction in rigidity of the packaging box 10 can be minimized. As a result, even if the packaging box 10 drops or collides with another item during transportation, the buttocks will not be crushed. In addition, even when the packaging boxes 10 are stacked, the buttocks are not crushed.
　また、第１破断部３５と第２破断部４２は、段違いになるように、折曲線１６が延びるＺ方向に間隔をあけて設けられている。よって、外周部１２全体に第１破断部３５と第２破断部４２を設けることによる包装箱１０の剛性低下を抑えることができる。しかも、切込部４４の端４４ａは折曲線２６に対して定められた間隔Ｄ１で形成され、切込部４４の端４４ｂは折曲線２０に対して定められた間隔Ｄ２で形成されている。よって、切込部４４を設けることによる包装箱の剛性（圧縮強度）の低下を最小限に抑えることができる。 Further, the first breaking portion 35 and the second breaking portion 42 are provided at intervals in the Z direction in which the bending curve 16 extends so as to be stepped. Therefore, the rigid fall of packaging box 10 by providing the 1st fracture part 35 and the 2nd fracture part 42 in the perimeter part 12 whole can be controlled. Moreover, the end 44 a of the cut portion 44 is formed at a fixed distance D 1 with respect to the fold line 26, and the end 44 b of the cut portion 44 is formed at a fixed distance D 2 with respect to the fold line 20. Therefore, it is possible to minimize the decrease in the rigidity (compressive strength) of the packaging box due to the provision of the notches 44.
（開封用の補助折曲線）
　図１及び図２に示すように、端板１３Ａ，１３Ｂには、第１破断部３５に沿った破断を促進するための補助折曲線４６，４７が１組設けられている。また、側板１４Ａ，１４Ｂには、第２破断部４２に沿った破断を促進するための補助折曲線４８，４９が２組設けられている。具体的には、側板１４Ａ，１４Ｂには、第２操作部３７を中心として、端板１３Ａ側に１組の補助折曲線４８，４９が設けられ、端板１３Ｂ側に残りの１組の補助折曲線４８，４９が設けられている。 (Auxiliary folding curve for opening)
As shown in FIGS. 1 and 2, the end plates 13A and 13B are provided with a pair of auxiliary folding curves 46 and 47 for promoting fracture along the first fracture portion 35. The side plates 14A and 14B are provided with two sets of auxiliary folding curves 48 and 49 for promoting breakage along the second breakage part 42. Specifically, on the side plates 14A and 14B, a pair of auxiliary folding curves 48 and 49 are provided on the end plate 13A side with the second operation portion 37 as a center, and the remaining pair of auxiliary curves is provided on the end plate 13B side. Folded lines 48, 49 are provided.
　端板１３Ａ，１３Ｂの第１補助折曲線４６は、汎用罫線からなり、第１操作部３０の折曲線３１側から、第１操作部３０から離れた方の側板１４Ａ，１４Ｂに向けて、上蓋部２４側へ傾斜している。第１補助折曲線４６の第１操作部３０側の端は、折曲線３１に対して間隔をあけて位置している。第１補助折曲線４６の上蓋部２４側の端は、折曲線２６に対して間隔をあけて位置している。 The first auxiliary folding line 46 of the end plates 13A and 13B is a general-purpose ruled line, and from the folding line 31 side of the first operation unit 30 toward the side plates 14A and 14B away from the first operation unit 30, the upper lid It inclines to the part 24 side. The end on the first operation portion 30 side of the first auxiliary folding line 46 is located at an interval from the folding line 31. The end on the upper lid portion 24 side of the first auxiliary folding line 46 is located at a distance from the folding line 26.
　端板１３Ａ，１３Ｂの第２補助折曲線４７は、平行に延びる２本の汎用罫線からなり、第１操作部３０から離れた方の切込部４４側から、第１補助折曲線４６の延長線と折曲線２６が交差する部分に向けて傾斜している。第２補助折曲線４７の切込部４４側の端は、切込部４４に対して間隔をあけて位置している。第２補助折曲線４７の上蓋部２４側の端は、折曲線２６に対して間隔をあけて位置している。 The second auxiliary folding line 47 of the end plates 13A and 13B is formed of two general-purpose ruled lines extending in parallel, and the first auxiliary folding line 46 is extended from the side of the notch 44 away from the first operation part 30. The line and the slope 26 are inclined toward the intersection. The end of the second auxiliary bending line 47 on the side of the cut portion 44 is located at a distance from the cut portion 44. The end on the upper lid 24 side of the second auxiliary folding line 47 is located at a distance from the folding line 26.
　側板１４Ａ，１４Ｂの個々の第１補助折曲線４８は、汎用罫線からなり、第２操作部３７の折曲線３８側から、端板１３Ａ，１３Ｂ（両側）に向けて、上蓋部２４側へ傾斜している。第１補助折曲線４８の第２操作部３７側の端は、折曲線３８に対して間隔をあけて位置している。第１補助折曲線４８の上蓋部２４側の端は、折曲線２８に対して間隔をあけて位置している。 Each of the first auxiliary folding lines 48 of the side plates 14A and 14B is a general-purpose ruled line, and is inclined toward the upper cover 24 from the folding curve 38 side of the second operation part 37 toward the end plates 13A and 13B (both sides). doing. The end on the second operation portion 37 side of the first auxiliary folding line 48 is located at a distance from the folding line 38. The end on the upper lid portion 24 side of the first auxiliary folding curve 48 is positioned at a distance from the folding curve 28.
　側板１４Ａ，１４Ｂの個々の第２補助折曲線４９は、平行に延びる２本の汎用罫線からなり、切込部４４側から、第１補助折曲線４８の延長線と折曲線２８が交差する部分に向けて傾斜している。第２補助折曲線４９の切込部４４側の端は、切込部４４に対して間隔をあけて位置している。第２補助折曲線４９の上蓋部２４側の端は、折曲線２８に対して間隔をあけて位置している。 Each second auxiliary folding line 49 of the side plates 14A and 14B is composed of two general-purpose ruled lines extending in parallel, and from the side of the cut portion 44, a portion where the extension line of the first auxiliary folding line 48 and the folding line 28 intersect It is inclined towards. The end of the second auxiliary bending line 49 on the side of the cut portion 44 is located at a distance from the cut portion 44. The end on the upper lid 24 side of the second auxiliary folding line 49 is located at a distance from the folding line 28.
（包装箱の開封作業）
　包装箱１０を開封する場合、例えば、先に上蓋部２４側に位置する第１破断部３５に沿って端板１３Ａ，１３Ｂを破断する。詳しくは、折曲線３１、第１破断線３２、及び第２破断線３３で囲まれた内部を手で押し、図４に示すように、第１操作部３０を開口させる。 (Opening operation of packaging box)
When the packaging box 10 is unsealed, for example, the end plates 13A and 13B are broken along the first breaking portion 35 located on the upper lid 24 side first. Specifically, the inside surrounded by the folding line 31, the first breaking line 32, and the second breaking line 33 is pushed by hand to open the first operation portion 30 as shown in FIG.
　ついで、第１操作部３０から包装箱１０内に手を差し込み、矢印αで示すように、端板１３Ａ，１３Ｂの上蓋部２４側をＸ方向外向きかつＺ方向上向きに引っ張る。これにより、第１破断部３５に沿って端板１３Ａ，１３Ｂの破断が始まるとともに、第１補助折曲線４６と第２補助折曲線４７に沿って端板１３Ａ，１３Ｂが折れ曲がる。この補助折曲線４６，４７の折れ曲がりにより、第１破断部３５に沿った端板１３Ａ，１３Ｂの破断が促進される。そして、この破断は、第１破断部３５の端３５ｂから切込部４４に至ることで止まる。 Then, a hand is inserted from the first operation unit 30 into the packaging box 10, and the upper lid 24 side of the end plates 13A and 13B is pulled outward in the X direction and upward in the Z direction as shown by the arrow α. Thus, the end plates 13A and 13B start to break along the first breaking portion 35, and the end plates 13A and 13B bend along the first auxiliary folding line 46 and the second auxiliary folding line 47. The bending of the auxiliary folding lines 46 and 47 promotes the breaking of the end plates 13A and 13B along the first breaking portion 35. And this fracture | rupture stops by reaching from the end 35b of the 1st fracture | rupture part 35 to the notch part 44. As shown in FIG.
　この際、切込部４４の上側の端４４ａ（切込部４４の一部）は、上側の第１破断部３５よりも、更に上方（折曲線２６側）へ突出している。よって、第１破断部３５に沿った端板１３Ａ，１３Ｂの破断を、切込部４４によって確実に止めることができる。つまり、端板１３Ａ，１３Ｂの破断は、第１操作部３０を操作する向きに進む傾向があるが、この場合でも、破断を止めることができる。 At this time, the upper end 44 a (a part of the cut portion 44) of the cut portion 44 protrudes further upward (the side of the bending curve 26) than the upper first broken portion 35. Therefore, breakage of the end plates 13A and 13B along the first breakage portion 35 can be reliably stopped by the cut portion 44. That is, the breakage of the end plates 13A and 13B tends to proceed in the direction of operating the first operation unit 30, but even in this case, the breakage can be stopped.
　その後、図５に示すように、第１操作部３０を把持した操作を更に続けることで、切込部４４を起点として、操作方向と延在方向が同じ折曲線１６に沿って、端板１３Ａ，１３Ｂと側板１４Ａ，１４Ｂの間（稜部）が破断される。 Thereafter, as shown in FIG. 5, by continuing the operation of gripping the first operation unit 30, the end plate 13A is taken along the folding line 16 in which the operation direction and the extension direction are the same, starting from the cut portion 44. , 13B and the side plates 14A, 14B are broken.
　次に、折曲線３８、第１破断線３９、及び第２破断線４０で囲まれた内部を手で押し、第２操作部３７を開口させる。ついで、第２操作部３７から包装箱１０内に手を差し込み、矢印βで示すように、側板１４Ａ，１４Ｂの上蓋部２４側をＹ方向外向きかつＺ方向上向きに引っ張る。これにより、第２破断部４２に沿って側板１４Ａ，１４Ｂの破断が開始されるとともに、第１補助折曲線４８と第２補助折曲線４９に沿って側板１４Ａ，１４Ｂが折れ曲がる。この補助折曲線４８，４９の折れ曲がりにより、第２破断部４２に沿った側板１４Ａ，１４Ｂの破断が促進される。そして、この破断は、第２破断部４２の端４２ｂから切込部４４に至ることで止まる。 Next, the inside surrounded by the folding line 38, the first break line 39, and the second break line 40 is pushed by hand, and the second operation portion 37 is opened. Then, a hand is inserted into the packaging box 10 from the second operation portion 37, and as shown by the arrow β, the upper lid 24 side of the side plates 14A and 14B is pulled outward in the Y direction and upward in the Z direction. As a result, breakage of the side plates 14A and 14B is started along the second breaking portion 42, and the side plates 14A and 14B are bent along the first auxiliary folding line 48 and the second auxiliary folding line 49. The bending of the auxiliary bending curves 48, 49 promotes the breakage of the side plates 14A, 14B along the second breakage portion 42. And this fracture | rupture stops by reaching the incision part 44 from the end 42b of the 2nd fracture | rupture part 42. As shown in FIG.
　これにより包装箱１０は、図６に示すように、下蓋部１８側をトレイ状とし、上蓋部２４側を展開状態のシート状とした、開封状態になる。なお、包装箱１０の開封作業は、側板１４Ａ，１４Ｂの破断後、端板１３Ａ，１３Ｂの破断を行ってもよい。 As a result, as shown in FIG. 6, the packaging box 10 is in an opened state in which the lower lid portion 18 is in the form of a tray and the upper lid portion 24 is in the expanded sheet shape. In the opening operation of the packaging box 10, the end plates 13A and 13B may be broken after the side plates 14A and 14B are broken.
　このように、本実施形態の包装箱１０では、第１破断部３５、第２破断部４２、及び切込部４４の形成により、意図した開封形態を実現できる。また、この開封状態では、下蓋部１８側がトレイ状であるため、収容された物品の取出作業性を向上できる。しかも、上蓋部２４側は展開状態に解体されているため、嵩張ることはなく、廃棄する際の利便性を向上できる。 As described above, in the packaging box 10 according to the present embodiment, the intended opening form can be realized by the formation of the first breaking portion 35, the second breaking portion 42, and the incision portion 44. Further, in the opened state, the lower lid portion 18 side is in the form of a tray, so that the workability of taking out the stored articles can be improved. Moreover, since the upper lid 24 side is disassembled in the unfolded state, it is not bulky, and the convenience at the time of discarding can be improved.
　また、端板１３Ａ，１３Ｂの破断作業は、第１操作部３０の操作によって行うことができ、側板１４Ａ，１４Ｂの破断作業は第２操作部３７の操作によって行うことができる。しかも、端板１３Ａ，１３Ｂには補助折曲線４６，４７が設けられ、側板１４Ａ，１４Ｂには補助折曲線４８，４９が設けられている。よって、外周部１２の破断作業性を向上できるため、包装箱１０の開封作業性も向上できる。 The breaking operation of the end plates 13A and 13B can be performed by the operation of the first operation unit 30, and the breaking operation of the side plates 14A and 14B can be performed by the operation of the second operation unit 37. Moreover, the auxiliary folds 46 and 47 are provided on the end plates 13A and 13B, and the auxiliary folds 48 and 49 are provided on the side plates 14A and 14B. Therefore, since the fracture | rupture workability of the outer peripheral part 12 can be improved, the unsealing workability of the packaging box 10 can also be improved.
（第２実施形態）
　図７から図１２は第２実施形態の包装箱５０を示す。図７に示すように、この包装箱５０は、四角筒状の外周部５２と、外周部５２の両端の開口を塞ぐ蓋部６０，６０とを備えるラップアラウンドケースである。外周部５２は、底板（第２連続板）５３、天板（第１連続板）５４、及び一対の側板５５Ａ，５５Ｂで構成されている。個々の蓋部６０は、一対の内フラップ６１，６１、及び一対の外フラップ６３Ａ，６３Ｂで構成されている。包装箱５０には、第１破断部３５が内フラップ６１にそれぞれ形成され、第２破断部４２が側板５５Ａ，５５Ｂにそれぞれ形成され、切込部４４が内フラップ６１と側板５５Ａ，５５Ｂの間の折曲線６２にそれぞれ形成されている。 Second Embodiment
7 to 12 show a packaging box 50 of the second embodiment. As shown in FIG. 7, the packaging box 50 is a wrap around case provided with a rectangular cylindrical outer peripheral portion 52 and lid portions 60, 60 that close the openings at both ends of the outer peripheral portion 52. The outer peripheral portion 52 includes a bottom plate (second continuous plate) 53, a top plate (first continuous plate) 54, and a pair of side plates 55A and 55B. Each lid 60 includes a pair of inner flaps 61, 61 and a pair of outer flaps 63A, 63B. In the packaging box 50, a first breaking portion 35 is formed on the inner flap 61, a second breaking portion 42 is formed on the side plates 55A and 55B, and a notch 44 is formed between the inner flap 61 and the side plates 55A and 55B. Are respectively formed on the folding lines 62 of
（包装箱の概要）
　図７及び図８に示すように、底板５３と天板５４は、ＸＹ平面に沿って延びる概ね同一の長方形状であり、Ｚ方向に間隔をあけて対向配置され、側板５５Ａ，５５Ｂと蓋部６０，６０の端に連設されている。側板５５Ａ，５５Ｂは、ＺＸ平面に沿って延びる概ね同一の長方形状であり、Ｙ方向に間隔をあけて蓋部６０，６０の両端に対向配置されている。 (Overview of packaging box)
As shown in FIGS. 7 and 8, the bottom plate 53 and the top plate 54 have substantially the same rectangular shape extending along the XY plane, and are disposed opposite to each other at an interval in the Z direction. It is continuously installed at the end of 60, 60. The side plates 55A and 55B have substantially the same rectangular shape extending along the ZX plane, and are disposed to face both ends of the lids 60 and 60 at intervals in the Y direction.
　図９を参照すると、天板５４、側板５５Ａ、底板５３、及び側板５５Ｂは、この順で上側から下側に向けて、汎用罫線からなる折曲線５７を介して連設されている。図９において、上端に位置する天板５４には、下端に位置する側板５５Ｂに貼着するための貼着板５６が、折曲線５７を介して連設されている。 Referring to FIG. 9, the top plate 54, the side plate 55A, the bottom plate 53, and the side plate 55B are continuously connected in this order from the upper side to the lower side via a folding line 57 formed of a general ruled line. In FIG. 9, an adhesive plate 56 for adhering to the side plate 55 </ b> B located at the lower end is continuously provided on the top plate 54 located at the upper end via a bending curve 57.
　引き続いて図７及び図８を参照すると、蓋部６０，６０は、ＹＺ平面に沿って延びる概ね同一の長方形状であり、Ｘ方向に間隔をあけて側板５５Ａ，５５Ｂの両端に対向配置されている。この蓋部６０は、側板５５Ａ，５５Ｂの端に連設された内フラップ６１，６１と、天板５４の端に連設された外フラップ（第１外フラップ）６３Ａと、底板５３の端に連設された外フラップ（第２外フラップ）６３Ｂとで構成されている。外フラップ６３Ａ，６３Ｂは、内フラップ６１の外面側にＺ方向に並べて配置されている。 7 and 8, lids 60, 60 have substantially the same rectangular shape extending along the YZ plane, and are disposed opposite to both ends of side plates 55A, 55B at intervals in the X direction. There is. The lid portion 60 includes inner flaps 61 and 61 connected to the ends of the side plates 55A and 55B, an outer flap (first outer flap) 63A connected to the end of the top plate 54, and an end of the bottom plate 53. It is comprised by the outer flap (2nd outer flap) 63B provided in series. The outer flaps 63A and 63B are arranged on the outer surface side of the inner flap 61 in the Z direction.
　図９を併せて参照すると、内フラップ６１，６１は、汎用罫線からなる折曲線（第１辺）６２を介して、側板５５Ａ，５５Ｂの端に連設されている。外フラップ６３Ａは、汎用罫線からなる折曲線６４（第２辺）を介して、天板５４の端に連設されている。外フラップ６３Ｂは、汎用罫線からなる折曲線６５を介して、底板５３の端に連設されている。なお、天板５４側に位置する折曲線５７の形成部分は、側板５５Ａ，５５Ｂの第３辺である。 Referring also to FIG. 9, the inner flaps 61, 61 are continuously provided at the ends of the side plates 55 A, 55 B via a fold line (first side) 62 formed of a general-purpose ruled line. The outer flap 63A is continuously provided to the end of the top plate 54 via a folding line 64 (second side) formed of a general-purpose ruled line. The outer flap 63B is connected to the end of the bottom plate 53 via a folding line 65 formed of a general-purpose ruled line. In addition, the formation part of the folding curve 57 located in the top plate 54 side is the 3rd side of side plate 55A, 55B.
　包装箱５０は、例えば次のように封緘される。まず、図９のブランクの状態で、底板５３の上面（裏ライナ側）に収容する物品を配置する。ついで、底板５３に対して側板５５Ａ，５５Ｂを折り曲げる。その後、側板５５Ａに対して天板５４を折り曲げるとともに、天板５４に対して貼着板５６を折り曲げる。そして、側板５５Ｂの外面と貼着板５６の内面とを、熱溶融樹脂等の接着剤を用いて貼着（ホットメルト）する。但し、側板５５Ｂの内面に貼着板５６を貼着してもよい。 The packaging box 50 is sealed, for example, as follows. First, in the state of the blank in FIG. 9, an article to be accommodated is disposed on the upper surface (back liner side) of the bottom plate 53. Next, the side plates 55A and 55B are bent with respect to the bottom plate 53. Thereafter, the top plate 54 is bent with respect to the side plate 55A, and the adhesive plate 56 is bent with respect to the top plate 54. Then, the outer surface of the side plate 55B and the inner surface of the bonding plate 56 are bonded (hot melt) using an adhesive such as a heat melting resin. However, the sticking plate 56 may be stuck to the inner surface of the side plate 55B.
　次に、側板５５Ａ，５５Ｂに対して内フラップ６１，６１を折り曲げる。ついで、天板５４に対して外フラップ６３Ａを折り曲げるとともに、底板５３に対して外フラップ６３Ｂを折り曲げる。そして、内フラップ６１，６１と外フラップ６３Ａ，６３Ｂの重なり合った部分を、ホットメルトによって貼着する。これにより、蓋部６０が形成され、外周部５２の両端の開口が封緘される。 Next, the inner flaps 61, 61 are bent with respect to the side plates 55A, 55B. Then, the outer flap 63A is bent with respect to the top plate 54, and the outer flap 63B is bent with respect to the bottom plate 53. Then, the overlapping portions of the inner flaps 61, 61 and the outer flaps 63A, 63B are attached by hot melt. Thereby, the lid portion 60 is formed, and the openings at both ends of the outer peripheral portion 52 are sealed.
（開封用破断部の構造）
　図７から図９に示すように、内フラップ６１には、外フラップ６３Ａの操作により内フラップ６１を破断するための第１破断部３５が設けられている。本実施形態の内フラップ６１には、先端から側板５５Ａ，５５Ｂに向けて、Ｙ方向に切り欠いた切欠部６７が形成されている。第１破断部３５は、この切欠部６７（先端側）から折曲線６２に向けて、外フラップ６３Ａの折曲線６４に沿って延びている。また、第１破断部３５を形成するＺ方向の高さ位置は、外フラップ６３Ｂの全高よりも天板５４側に偏っている。図８に最も明瞭に示すように、第２実施形態の第１破断部３５には、第１破断部３５を構成する複数の切断線のうちの１本に、下向きに傾斜したガイド部が形成されている。 (Structure of opening for opening)
As shown in FIGS. 7 to 9, the inner flap 61 is provided with a first breaking portion 35 for breaking the inner flap 61 by the operation of the outer flap 63 </ b> A. In the inner flap 61 of the present embodiment, a notch 67 cut out in the Y direction is formed from the tip toward the side plates 55A and 55B. The first breaking portion 35 extends along the folding line 64 of the outer flap 63A from the notch 67 (tip end side) toward the folding line 62. Further, the height position in the Z direction forming the first fracture portion 35 is biased to the top plate 54 side more than the entire height of the outer flap 63B. As shown most clearly in FIG. 8, in the first fracture portion 35 of the second embodiment, a guide portion inclined downward is formed on one of a plurality of cutting lines constituting the first fracture portion 35. It is done.
　側板５５Ａ，５５Ｂには、第１実施形態と同様の操作部３７と、操作部３７の操作により側板５５Ａ，５５Ｂを破断するため第２破断部４２とが設けられている。第２破断部４２は、操作部３７のＸ方向の外端から内フラップ６１側の折曲線６２に向けて、側板５５Ａ，５５Ｂの天板５４側の折曲線５７に沿ってＸ方向に延びている。 The side plates 55A and 55B are provided with an operation portion 37 similar to that of the first embodiment, and a second breaking portion 42 for breaking the side plates 55A and 55B by the operation of the operation portion 37. The second breaking portion 42 extends in the X direction from the outer end of the operation portion 37 in the X direction toward the folding line 62 on the inner flap 61 side, along the folding line 57 on the top plate 54 side of the side plates 55A and 55B. There is.
　第２実施形態では、開封状態での底板５３側の開口面積を大きくするために、操作部３７は、側板５５Ａ，５５ＢのＺ方向の中央よりも下側に形成されている。第２破断部４２は、操作部３７側の端４２ａが操作部３７の端（交点）に位置し、折曲線６２側の端４２ｂが側板５５Ａ，５５ＢのＺ方向の概ね中央に位置されている。詳しくは、第２破断部４２は、操作部３７からＸ方向外側に延びる第１破断線４２Ａと、第１破断線４２Ａの端から側板５５Ａ，５５ＢのＺ方向中央に向けて外向きに傾斜する第２破断線４２Ｂと、第２破断線４２Ｂの端から折曲線６２に向けて延びる第３破断線４２Ｃとを備える。 In the second embodiment, in order to increase the opening area on the bottom plate 53 side in the opened state, the operation portion 37 is formed below the center of the side plates 55A and 55B in the Z direction. In the second breaking portion 42, the end 42a on the operation portion 37 side is located at the end (intersection point) of the operation portion 37, and the end 42b on the bending curve 62 side is located approximately at the center of the side plates 55A and 55B in the Z direction. . Specifically, the second breaking portion 42 inclines outward from the end of the first breaking line 42A extending from the operation portion 37 outward in the X direction and the center of the side plates 55A and 55B from the end of the first breaking line 42A. A second broken line 42B and a third broken line 42C extending from the end of the second broken line 42B toward the bending line 62 are provided.
　切込部４４は、内フラップ６１と側板５５Ａ，５５Ｂの間の折曲線６２上に設けられている。 The incised portion 44 is provided on a fold curve 62 between the inner flap 61 and the side plates 55A, 55B.
　図１０に示すように、第１破断部３５の端３５ｂ、第２破断部４２の端４２ｂ、及び切込部４４の形成位置の関係は、第１実施形態と同様に、第２の間隔Ｂが第１の間隔Ａよりも小さく設定され（Ａ＞Ｂ）、第３の間隔Ｃが第１の間隔Ａよりも小さく設定されている（Ａ＞Ｃ）。また、切込部４４の端４４ａ，４４ｂと、折曲線６４，６５の位置の関係（間隔Ｄ１，Ｄ２）も、第１実施形態と同様に設けられている。 As shown in FIG. 10, the relationship between the end 35b of the first breaking portion 35, the end 42b of the second breaking portion 42, and the formation positions of the notches 44 is the same as that of the first embodiment. Is set smaller than the first interval A (A> B), and the third interval C is set smaller than the first interval A (A> C). Further, the relationship (distance D1, D2) between the positions 44a and 44b of the notched portion 44 and the positions of the folding lines 64 and 65 is also provided as in the first embodiment.
　よって、第２実施形態の包装箱５０では、第１実施形態と同様に、内フラップ６１と側板５５Ａ，５５Ｂの間の稜部の強度が過度に低下することを防止できる。また、包装箱５０の剛性低下を最小限に抑えることができる。その結果、搬送中に包装箱５０と落としたり他の物品が衝突したりしても、稜部が潰れることはない。また、包装箱５０を積み重ねた場合にも、稜部が潰れることはない。 Therefore, in the packaging box 50 of the second embodiment, as in the first embodiment, it is possible to prevent the strength of the buttocks between the inner flaps 61 and the side plates 55A and 55B from being excessively reduced. In addition, the reduction in rigidity of the packaging box 50 can be minimized. As a result, even if the packaging box 50 drops or collides with another article during transportation, the buttocks will not be crushed. In addition, even when the packaging boxes 50 are stacked, the buttocks are not crushed.
　側板５５Ａ，５５Ｂと、側板５５Ｂに一体化された貼着板５６には、開封用の補助折曲線４８，４９が設けられている。そのうち、第２補助折曲線４９は、１本の逆罫線によって構成されている点で、第１実施形態と相違する。なお、外フラップ６３Ａには、開封用の補助折曲線は形成していない。 The side plates 55A and 55B and the adhesive plate 56 integrated with the side plate 55B are provided with auxiliary folding curves 48 and 49 for opening. Among them, the second auxiliary folding line 49 is different from that of the first embodiment in that it is constituted by one reverse ruled line. In addition, the auxiliary folding curve for opening is not formed in the outer flap 63A.
（包装箱の開封作業）
　図７に示すように、包装箱５０を開封する場合、例えば、先に外フラップ６３Ａ，６３Ｂの間に手を差し込み、矢印αで示すように、天板５４側の外フラップ６３ＡをＸ方向外向きかつＺ方向上向きに引っ張る。これにより、第１破断部３５に沿って内フラップ６１が破断される。そして、この破断は、第１破断部３５の端３５ｂから切込部４４に至ることで止まる。 (Opening operation of packaging box)
As shown in FIG. 7, when the packaging box 50 is opened, for example, a hand is first inserted between the outer flaps 63A and 63B, and the outer flap 63A on the top plate 54 side is outside in the X direction as shown by arrow α. Pull in the direction and Z direction upwards. Thereby, the inner flap 61 is broken along the first breaking portion 35. And this fracture | rupture stops by reaching from the end 35b of the 1st fracture | rupture part 35 to the notch part 44. As shown in FIG.
　その後、図１１に示すように、外フラップ６３Ａを把持した操作を更に続けることで、切込部４４を起点として、操作方向と延在方向が同じ折曲線６２に沿って、内フラップ６１と側板５５Ａ，５５Ｂの間（稜部）が破断される。 Thereafter, as shown in FIG. 11, by further continuing the operation of gripping the outer flap 63A, the inner flap 61 and the side plate are taken along the folding line 62 having the same operation direction and extension direction starting from the cut portion 44. Between (55A, 55B) is broken.
　次に、操作部３７を開口させ、その開口部分か包装箱５０内に手を差し込み、矢印βで示すように、側板５５Ａ，５５Ｂの天板５４側をＹ方向外向きかつＺ方向上向きに引っ張る。これにより、第２破断部４２に沿って側板５５Ａ，５５Ｂの破断が開始される。また、第１補助折曲線４８に沿って側板５５Ａ，５５Ｂが山折れし、第２補助折曲線４９に沿って側板５５Ａ，５５Ｂが谷折れする。この補助折曲線４８，４９の折れ曲がりにより、第２破断部４２に沿った側板５５Ａ，５５Ｂの破断が促進される。そして、この破断は、第２破断部４２の端４２ｂから切込部４４に至ることで止まる。 Next, the operation portion 37 is opened, and a hand is inserted into the opening portion or into the packaging box 50, and the top plate 54 side of the side plates 55A and 55B is pulled outward in the Y direction and upward in the Z direction as shown by arrow β. . Thereby, breakage of the side plates 55A, 55B is started along the second breakage portion 42. Further, the side plates 55A and 55B are broken along the first auxiliary folding line 48, and the side plates 55A and 55B are broken along the second auxiliary bending line 49. The bending of the auxiliary bending curves 48, 49 promotes the breakage of the side plates 55A, 55B along the second breakage portion 42. And this fracture | rupture stops by reaching the incision part 44 from the end 42b of the 2nd fracture | rupture part 42. As shown in FIG.
　これにより包装箱５０は、図１２に示すように、底板５３側をトレイ状とし、天板５４側を展開状態のシート状とした、開封状態になる。なお、包装箱５０の開封作業は、側板５５Ａ，５５Ｂの破断後、内フラップ６１の破断を行ってもよい。 As a result, as shown in FIG. 12, the packaging box 50 is in an opened state in which the bottom plate 53 is in the form of a tray, and the top plate 54 is in the form of an expanded sheet. In the opening operation of the packaging box 50, the inner flap 61 may be broken after the side plates 55A, 55B are broken.
　このように、第２実施形態の包装箱５０では、第１実施形態と同様に、意図した開封状態に作業性よく開封できる。また、天板５４側は展開状態に解体されているため、嵩張ることはなく、廃棄する際の利便性を向上できる。また、第２実施形態の包装箱５０は、第１実施形態に示す第１操作部３０を設ける必要がない分、包装箱５０の剛性低下を効果的に抑えることができる。 Thus, in the packaging box 50 of the second embodiment, as in the first embodiment, the packaging container 50 can be opened in an intended opened state with good workability. Moreover, since the top plate 54 side is disassembled in the unfolded state, it is not bulky, and the convenience at the time of discarding can be improved. Moreover, since it is not necessary to provide the 1st operation part 30 shown in 1st Embodiment, the packaging box 50 of 2nd Embodiment can suppress the rigid fall of the packaging box 50 effectively.
（切込部の変形例）
　図１３Ａから図１３Ｇは、折曲線１６，６２上に形成する切込部４４の変形例を示す。切込部４４は、図１３Ａと図１３Ｂのように形成位置を変更してもよいし、図１３Ｃから図１３Ｅのように一部又は全体を傾斜させてもよいし、図１３Ｆと図１３Ｇのように複数の切断線によって構成してもよい。 (Modified example of cut part)
13A to 13G show modifications of the notches 44 formed on the fold lines 16 and 62. FIG. The cut portion 44 may change the formation position as shown in FIGS. 13A and 13B, or may be partially or entirely inclined as shown in FIGS. 13C to 13E, or as shown in FIGS. 13F and 13G. Thus, it may be constituted by a plurality of cutting lines.
　図１３Ａの変形例では、切込部４４の下側の端４４ｂは、第１破断部３５と第２破断部４２のいずれよりも、折曲線２６，６４側（操作する向き）に位置するように設定されている。図１３Ｂの変形例では、切込部４４の下側の端４４ｂは、第１破断部３５と第２破断部４２のいずれよりも、折曲線２０，６５側（操作する向きと逆側）に位置するように設定されている。 In the modified example of FIG. 13A, the lower end 44b of the notch 44 is located on the folding line 26, 64 side (direction to be operated) relative to both the first breaking portion 35 and the second breaking portion 42. It is set to. In the modification of FIG. 13B, the lower end 44b of the notch 44 is closer to the folding line 20, 65 than the first breaking portion 35 and the second breaking portion 42 (opposite to the operating direction). It is set to be located.
　また、切込部４４の上側の端４４ａは、上側の第１破断部３５よりも折曲線２０，６５側（操作する向きと逆側）に位置し、切込部４４の下側の端４４ｂは、下側の第２破断部４２よりも折曲線２６，６４側（操作する向き）に位置するように、設定してもよい。つまり、切込部４４は、Ｚ方向における第１破断部３５と第２破断部４２の間に設けてもよい。 Further, the upper end 44 a of the cut portion 44 is located closer to the bending curves 20 and 65 than the upper first breaking portion 35 (opposite to the operating direction), and the lower end 44 b of the cut portion 44. May be set to be located on the side of the folding line 26, 64 (direction to operate) than the lower second breaking portion 42. That is, the cut portion 44 may be provided between the first breaking portion 35 and the second breaking portion 42 in the Z direction.
　図１３Ｃの変形例では、切込部４４は、折曲線１６，６２に沿って延びる鉛直部４４Ａと、鉛直部４４Ａの上端から折曲線１６，６２に対して傾斜して延びる傾斜部４４Ｂとを備える。図１３Ｄの変形例では、切込部４４は、折曲線１６，６２に沿って延びる鉛直部４４Ａと、鉛直部４４Ａの下端から折曲線１６，６２に対して傾斜して延びる傾斜部４４Ｂとを備える。これらの傾斜部４４Ｂは、２番目に破断することを基本として設定した第２破断部４２側へ突出している。 In the modification of FIG. 13C, the notched portion 44 includes a vertical portion 44A extending along the fold lines 16, 62, and an inclined portion 44B extending obliquely from the upper end of the vertical portion 44A with respect to the fold lines 16, 62. Prepare. In the modification of FIG. 13D, the notched portion 44 includes a vertical portion 44A extending along the fold lines 16 and 62, and a sloped portion 44B extending obliquely from the lower end of the vertical portion 44A with respect to the fold lines 16 and 62. Prepare. These inclined portions 44B protrude toward the second breaking portion 42 set on the basis of the second breaking.
　図１３Ｅの変形例では、切込部４４は、１本の切断線からなり、全体として折曲線１６，６２に対して傾斜されている。この例では、切込部４４の上側の端４４ａが、下側に位置する第２破断線４２側に位置し、切込部４４の下側の端４４ｂが、上側に位置する第１破断線３５側に位置するように、傾斜されている。これにより、第１破断線３５に沿った破断に続いて第２破断線４２に沿って破断すること、又は第２破断線４２に沿った破断に続いて第１破断線３５に沿って破断することを防止している。つまり、破断部３５，４２に沿った破断を切込部４４で確実に止めることができる。但し、切込部４４は、図１３Ｅとは逆向き（折曲線１６，６２に対して線対称）に傾斜させてもよい。 In the variant of FIG. 13E, the incisions 44 consist of a single cutting line and are generally inclined with respect to the fold lines 16 and 62. In this example, the upper end 44a of the incision 44 is located on the lower second breaking line 42 side, and the lower end 44b of the incision 44 is located on the upper side. It is inclined so as to be located on the 35 side. Thereby, breaking along the second breaking line 42 following breaking along the first breaking line 35 or breaking along the first breaking line 35 following the breaking along the second breaking line 42 To prevent that. That is, the breakage along the breakage portions 35 and 42 can be reliably stopped by the incision portion 44. However, the cut portion 44 may be inclined in the opposite direction (axisymmetric with respect to the fold lines 16 and 62) to that in FIG. 13E.
　図１３Ｆの変形例では、切込部４４は、折曲線１６，６２に対して傾斜された複数（図示では３本）の切断線からなる切断線群によって構成されている。個々の切断線は、折曲線１６，６２に沿って、定められた間隔をあけて設けられている。この場合、最も折曲線２６，６４側（操作する向き）に位置する切断線の端４４ａから、最も折曲線２０，６５側（操作する向きと逆側）に位置する切断線の端４４ｂまでの間隔（全長Ｌ１に相当）は、５ｍｍ以上１５０ｍｍ以下に設定することが好ましい。また、切込部４４を構成する個々の切断線の傾斜方向は、図１３Ｅと同様に、逆向きとしてもよい。 In the modification of FIG. 13F, the notches 44 are constituted by a cutting line group consisting of a plurality of (three in the drawing) cutting lines inclined with respect to the fold lines 16 and 62. The individual cutting lines are provided at defined intervals along the fold lines 16, 62. In this case, from the end 44a of the cutting line located closest to the folding line 26, 64 (direction to operate) to the end 44b of the cutting line located closest to the bending line 20, 65 (opposite to the direction to operate) The distance (corresponding to the total length L1) is preferably set to 5 mm or more and 150 mm or less. Further, the inclination directions of the individual cutting lines constituting the incisions 44 may be reversed as in FIG. 13E.
　図１３Ｇの変形例では、切込部４４は、傾斜した切断線の一端が折曲線１６，６２上に位置するように設けられている。この例では、切込部４４の上側の端４４ａは第１破断線３５の端３５ｂよりも下側に位置され、切込部４４の下側の端４４ｂは第２破断線４２の端４２ｂよりも上側に位置されている。また、切込部４４は、第２破断部４２側の端が折曲線１６，６２上に位置されているが、第１破断部３５側の端が折曲線１６，６２上に位置されてもよい。また、切込部４４を構成する切断線の傾斜方向は、逆向きでもよい。 In the modification of FIG. 13G, the notches 44 are provided such that one end of the inclined cutting line is located on the fold lines 16 and 62. In this example, the upper end 44 a of the notch 44 is positioned lower than the end 35 b of the first break line 35, and the lower end 44 b of the notch 44 is closer to the end 42 b of the second break line 42. Is also located on the upper side. Further, although the end of the cut portion 44 on the second broken portion 42 side is positioned on the bending curves 16 and 62, even if the end on the first broken portion 35 side is positioned on the bending curves 16 and 62 Good. Moreover, the inclination direction of the cutting line which comprises the cutting part 44 may be reverse direction.
　また、図１３Ｃから図１３Ｇに示すように、切込部４４は、一部が折曲線１６，６２（第１辺）上に位置していればよい。つまり、第１辺上に設けられた切込部とは、全体が第１辺上に位置する構成は勿論、一部だけが第１辺上に位置する構成が含まれる。 Further, as shown in FIG. 13C to FIG. 13G, it is only necessary that a part of the cut-in portion 44 is located on the fold lines 16 and 62 (first side). That is, not only the configuration in which the whole is located on the first side but also the configuration in which only a part is located on the first side are included in the cutout portion provided on the first side.
　なお、本発明の包装箱１０，５０は、前記実施形態の構成に限定されず、種々の変更が可能である。 In addition, the packaging boxes 10 and 50 of this invention are not limited to the structure of the said embodiment, A various change is possible.
　例えば、第１実施形態の包装箱１０では、一対の端板１３Ａ，１３Ｂのうちの一方だけに第１破断部３５を設け、一対の側板１４Ａ，１４Ｂのうちの一方だけに第２破断部４２を設けてもよい。また、第２実施形態の包装箱５０でも、一対の蓋部６０，６０のうちの一方の内フラップ６１だけに第１破断部３５を設け、一対の側板５５Ａ，５５Ｂのうちの一方だけに第２破断部４２を設けてもよい。つまり、包装箱の破断構造は、上下に二分割する構成に限られず、必要に応じて変更が可能である。 For example, in the packaging box 10 according to the first embodiment, the first breaking portion 35 is provided on only one of the pair of end plates 13A and 13B, and the second breaking portion 42 is provided on only one of the pair of side plates 14A and 14B. May be provided. Also in the packaging box 50 of the second embodiment, the first breaking portion 35 is provided only on the inner flap 61 of one of the pair of lids 60 and 60, and the first broken portion 35 is formed on only one of the pair of side plates 55A and 55B. A two fractured portion 42 may be provided. That is, the broken structure of the packaging box is not limited to the configuration in which the package is divided into two vertically, and can be changed as needed.
　図１４に示すように、第１実施形態の包装箱１０では、外周部１２は、端板１３Ａ，１３Ｂと側板１４Ａ，１４Ｂの間に面取り板７０を備えていてもよい。この場合、切込部４４は、図示のように端板１３Ａ，１３Ｂと面取り板７０の間の折曲線１６上に設けてもよいし、側板１４Ａ，１４Ｂと面取り板７０の間の折曲線１６上に設けてもよい。また、図１５に示すように、第２実施形態の包装箱５０でも、内フラップ６１，６１と側板５５Ａ，５５Ｂの間に面取り板７１を設けてもよい。 As shown in FIG. 14, in the packaging box 10 according to the first embodiment, the outer peripheral portion 12 may include a chamfered plate 70 between the end plates 13A and 13B and the side plates 14A and 14B. In this case, the notches 44 may be provided on the fold line 16 between the end plates 13A and 13B and the chamfered plate 70 as shown, or the fold line 16 between the side plates 14A and 14B and the chamfered plate 70. It may be provided on top. Further, as shown in FIG. 15, in the packaging box 50 of the second embodiment, a chamfered plate 71 may be provided between the inner flaps 61, 61 and the side plates 55A, 55B.
　つまり、第１実施形態の包装箱１０では、端板（第１側板）１３Ａ，１３Ｂと側板（第２側板）１４Ａ，１４Ｂとが、面取り板７０を介して連設されていてもよい。第２実施形態の包装箱５０では、内フラップ６１と側板５５Ａ，５５Ｂとが、面取り板７１を介して連設されていてもよい。このように、包装箱の平面視、側面視、並びに端面視の形状（角数）は、必要に応じて変更が可能である。 That is, in the packaging box 10 of the first embodiment, the end plates (first side plates) 13A and 13B and the side plates (second side plates) 14A and 14B may be provided in series via the chamfered plate 70. In the packaging box 50 according to the second embodiment, the inner flaps 61 and the side plates 55A and 55B may be connected to each other via the chamfered plate 71. Thus, the shapes (angles) in plan view, side view, and end view of the packaging box can be changed as needed.
　第１破断部３５と第２破断部４２とは、Ｚ方向の同じ位置に形成してもよいし、第１破断部３５よりも第２破断部４２の方を折曲線２６，６４側に配置してもよい。 The first breaking portion 35 and the second breaking portion 42 may be formed at the same position in the Z direction, and the second breaking portion 42 is disposed closer to the bending lines 26 and 64 than the first breaking portion 35. You may
　壁板の破断を促進するために、各実施形態では第１補助折曲線４６，４８と第２補助折曲線４７，４９を設けたが、図１５に示すように、第２補助折曲線４９（４７）は設けることなく、第１補助折曲線４８（４６）のみを設けてもよい。 In each embodiment, the first auxiliary folding line 46, 48 and the second auxiliary folding line 47, 49 are provided in order to accelerate the breakage of the wall plate, but as shown in FIG. Only the first auxiliary folding line 48 (46) may be provided without providing 47).
　また、包装箱１０，５０の素材は、紙製の段ボールシートに限らず、樹脂製の段ボールシートであってもよい。また、包装箱１０，５０の素材は、段ボールシートに限られず、単一の厚紙や樹脂シートであってもよい。 Further, the material of the packaging boxes 10 and 50 is not limited to a paper cardboard sheet, but may be a resin cardboard sheet. Moreover, the raw material of the packaging boxes 10 and 50 is not restricted to a corrugated-cardboard sheet, A single thick paper and a resin sheet may be sufficient.
　１０…包装箱
　１２…外周部
　１３Ａ，１３Ｂ…端板（第１側板）
　１４Ａ，１４Ｂ…側板（第２側板）
　１５…貼着板
　１６…折曲線（第１辺）
　１８…下蓋部（第２連続板）
　１９Ａ，１９Ｂ…内フラップ
　２０…折曲線（第２辺と対向する辺）
　２１Ａ，２１Ｂ…外フラップ
　２２…折曲線（第３辺と対向する辺）
　２４…上蓋部（第１連続板）
　２５Ａ，２５Ｂ…内フラップ
　２６…折曲線（第２辺）
　２７Ａ，２７Ｂ…外フラップ
　２８…折曲線（第３辺）
　３０…第１操作部
　３１…折曲線
　３２…第１破断線
　３３…第２破断線
　３５…第１破断部
　３５ａ…第１操作部側の端
　３５ｂ…第１辺側の端
　３７…第２操作部
　３８…折曲線
　３９…第１破断線
　４０…第２破断線
　４２…第２破断部
　４２ａ…第２操作部側の端
　４２ｂ…第１辺側の端
　４２Ａ…第１破断線
　４２Ｂ…第２破断線
　４２Ｃ…第３破断線
　４４…切込部
　４４ａ…上蓋部側の端
　４４ｂ…下蓋部側の端
　４６…第１補助折曲線
　４７…第２補助折曲線
　４８…第１補助折曲線
　４９…第２補助折曲線
　５０…包装箱
　５２…外周部
　５３…底板（第２連続板）
　５４…天板（第１連続板）
　５５Ａ，５５Ｂ…側板
　５６…貼着板
　５７…折曲線（第３辺）
　６０…蓋部
　６１…内フラップ
　６２…折曲線（第１辺）
　６３Ａ…外フラップ（第１外フラップ）
　６３Ｂ…外フラップ（第２外フラップ）
　６４…折曲線（第２辺）
　６５…折曲線
　６７…切欠部
　７０…面取り板
　７１…面取り板 DESCRIPTION OF SYMBOLS 10 ... Packaging box 12 ... Outer peripheral part 13A, 13B ... End plate (1st side plate)
14A, 14B ... side plate (second side plate)
15: Sticking plate 16: Folded curve (first side)
18 ... lower cover (second continuous plate)
19A, 19B: Inner flap 20: Folded curve (side opposite to the second side)
21A, 21B: Outside flap 22: Folded curve (side opposite to the third side)
24 Upper lid (first continuous plate)
25A, 25B: Inner flap 26: Folded curve (second side)
27A, 27B: Outside flap 28: Folded curve (third side)
Reference Signs List 30 first operation part 31 folding line 32 first breaking line 33 second breaking line 35 first breaking part 35a end of first operation side 35b first side side 37 second operation Part 38: Folded curve 39: First broken line 40: Second broken line 42: Second broken part 42a: End 42b on the second operation part side 42b: End on the first side 42A: First broken line 42B: Second Breaking line 42C: third breaking line 44: notch 44a: end on upper lid side 44b: end on lower lid side 46: first auxiliary folding curve 47: second auxiliary folding curve 48: first auxiliary folding curve 49 ... 2nd auxiliary folding curve 50 ... packaging box 52 ... outer peripheral part 53 ... bottom plate (second continuous plate)
54 ... top plate (first continuous plate)
55A, 55B: Side plate 56: Sticking plate 57: Folded curve (third side)
60 ... lid portion 61 ... inner flap 62 ... folding curve (first side)
63A ... outside flap (first outside flap)
63B ... outside flap (the 2nd outside flap)
64 ... folding line (second side)
65: bending line 67: notch 70: chamfered plate 71: chamfered plate

Claims (8)

  1. 　第１辺と、前記第１辺に交差する第２辺を有する第１側板と、
    　前記第１辺と前記第２辺に交差する第３辺を有し、前記第１辺に連設され、前記第１側板に対して折り曲げられた第２側板と、
    　前記第１側板に設けられ、前記第２辺に向けて操作される第１操作部と、
    　前記第１側板に設けられ、前記第１操作部側から前記第１辺に向けて前記第２辺に沿って延び、前記第１操作部の操作により前記第１側板を破断するための第１破断部と、
    　前記第２側板に設けられ、前記第３辺に沿って延び、前記第２側板を破断するための第２破断部と、
    　前記第１側板の前記第１辺上に設けられた切込部と
    　を備え、
    　前記第１破断部の前記第１辺側の端と、前記第２破断部の前記第１辺側の端とは、前記第１側板の前記第１辺が延びる方向に間隔をあけて位置するとともに、定められた第１の間隔をあけて位置し、
    　前記第１破断部の前記端と前記切込部は、前記第１の間隔よりも小さい第２の間隔をあけて位置し、
    　前記第２破断部の前記端と前記切込部は、前記第１の間隔よりも小さい第３の間隔をあけて位置している、包装箱。     A first side plate having a first side and a second side intersecting the first side;
    A second side plate which has a third side intersecting the first side and the second side, is provided continuously with the first side, and is bent with respect to the first side plate;
    A first operation unit provided on the first side plate and operated toward the second side;
    The first side plate is provided to extend from the side of the first operation portion toward the first side along the second side, and the first side plate is broken by the operation of the first operation portion. At the break,
    A second breaking portion provided on the second side plate, extending along the third side, for breaking the second side plate;
    And a notch provided on the first side of the first side plate;
    The end on the first side of the first broken portion and the end on the first side of the second broken portion are spaced apart in the direction in which the first side of the first side plate extends. Together with a defined first spacing,
    The end of the first fracture portion and the cut portion are positioned at a second distance smaller than the first distance,
    The packaging box, wherein the end of the second fracture portion and the cut portion are positioned at a third distance smaller than the first distance.
  2. 　前記第１側板は、対向して一対配置され、
    　前記第２側板は、前記第１側板の両端に対向して一対配置されており、
    　前記第１側板の前記第２辺と、前記第２側板の前記第３辺とにそれぞれ連設された第１連続板と、
    　前記第１側板の前記第２辺と対向する辺と、前記第２側板の前記第３辺と対向する辺とにそれぞれ連設された第２連続板と
    　を更に備え、
    　前記第１破断部と前記第２破断部に沿って、前記第１側板と第２側板を破断するとともに、前記切込部を起点として前記第１辺に沿って前記第１側板と前記第２側板の間を破断することで、前記第１連続板側と前記第２連続板側とに分割される、請求項１に記載の包装箱。     The first side plates are disposed to face each other,
    The second side plate is disposed in a pair so as to face both ends of the first side plate,
    A first continuous plate connected to the second side of the first side plate and the third side of the second side plate;
    And a second continuous plate continuously connected to a side of the first side plate facing the second side and a side of the second side plate facing the third side.
    The first side plate and the second side plate are broken along the first breaking portion and the second breaking portion, and the first side plate and the second side are taken along the first side starting from the cut portion. The packaging box according to claim 1, which is divided into the first continuous plate side and the second continuous plate side by breaking between the side plates.
  3. 　前記切込部の少なくとも一部は、前記第１破断部及び前記第２破断部よりも、前記第１側板の前記第２辺側へ突出している、請求項１又は２に記載の包装箱。 The packaging box according to claim 1, wherein at least a part of the cut-out portion protrudes toward the second side of the first side plate more than the first breaking portion and the second breaking portion.
  4. 　前記第２側板には、前記第２側板の前記第３辺に向けて操作される第２操作部が設けられており、
    　前記第２破断部は、前記第２操作部側から前記第１辺に向けて設けられている、請求項１から３のいずれか１項に記載の包装箱。     The second side plate is provided with a second operation unit operated toward the third side of the second side plate,
    The packaging box according to any one of claims 1 to 3, wherein the second broken part is provided from the second operation part side toward the first side.
  5. 　前記第１側板の前記第２辺側に位置する前記切込部の端は、前記第１側板の前記第２辺に対して定められた間隔をあけて位置している、請求項１から４のいずれか１項に記載の包装箱。 The end of the said notch part located in the said 2nd side of the said 1st side plate opens the fixed space | interval with respect to the said 2nd side of the said 1st side plate, It is positioned. Packaging box according to any one of the preceding.
  6. 　前記第１側板の前記第２辺と対向する対向辺側に位置する前記切込部の端は、前記第１側板の前記対向辺に対して定められた間隔をあけて位置している、請求項１から５のいずれか１項に記載の包装箱。 The end of the cut portion located on the side opposite to the first side of the first side plate facing the second side is spaced apart from the side opposite to the first side of the first side plate. A packaging box according to any one of Items 1 to 5.
  7. 　内フラップと、
    　前記内フラップの第１辺に交差する第２辺を有し、前記内フラップの外面に固着され、前記第２辺に向けて開封操作される第１外フラップと、
    　前記内フラップの前記第１辺と前記第１外フラップの前記第２辺と交差する第３辺を有し、前記内フラップの前記第１辺に連設され、前記内フラップに対して折り曲げられた側板と、
    　前記内フラップに設けられ、前記内フラップの前記第１辺と対向する先端側から前記第１辺に向けて前記第１外フラップの前記第２辺に沿って延び、前記第１外フラップの操作により前記内フラップを破断するための第１破断部と、
    　前記側板に設けられ、前記第３辺に沿って延び、前記側板を破断するための第２破断部と、
    　前記内フラップの前記第１辺上に設けられた切込部と
    　を備え、
    　前記第１破断部の前記第１辺側の端と、前記第２破断部の前記第１辺側の端とは、前記第１側板の前記第１辺が延びる方向に間隔をあけて位置するとともに、定められた第１の間隔をあけて位置し、
    　前記第１破断部の前記端と前記切込部は、前記第１の間隔よりも小さい第２の間隔をあけて位置し、
    　前記第２破断部の前記端と前記切込部は、前記第１の間隔よりも小さい第３の間隔をあけて位置している、包装箱。     With the inside flap,
    A first outer flap which has a second side intersecting the first side of the inner flap, is fixed to the outer surface of the inner flap, and is opened toward the second side;
    It has a third side which intersects the first side of the inner flap and the second side of the first outer flap, and is connected to the first side of the inner flap, and is bent with respect to the inner flap Side plates,
    The inner flap is provided and extends along the second side of the first outer flap from the end side facing the first side of the inner flap toward the first side, and the operation of the first outer flap A first breaking portion for breaking the inner flap by
    A second breaking portion provided on the side plate, extending along the third side, for breaking the side plate;
    A notch provided on the first side of the inner flap;
    The end on the first side of the first broken portion and the end on the first side of the second broken portion are spaced apart in the direction in which the first side of the first side plate extends. Together with a defined first spacing,
    The end of the first fracture portion and the cut portion are positioned at a second distance smaller than the first distance,
    The packaging box, wherein the end of the second fracture portion and the cut portion are positioned at a third distance smaller than the first distance.
  8. 　対向配置された一対の前記内フラップと、前記内フラップにそれぞれ固着された前記第１外フラップと、前記内フラップの前記第１辺に沿って前記第１外フラップに並べて前記内フラップにそれぞれ固着された第２外フラップとを有し、間隔をあけて対向配置された一対の前記側板の両端に対向配置された一対の蓋部と、
    　前記第１外フラップと前記側板にそれぞれ連設された第１連続板と、
    　前記第２外フラップと前記側板にそれぞれ連設された第２連続板と
    　を更に備え、
    　前記第１破断部と前記第２破断部に沿って、前記内フラップと前記側板を破断するとともに、前記切込部を起点として前記第１辺に沿って前記内フラップと前記側板の間を破断することで、前記第１連続板側と前記第２連続板側とに分割される、請求項７に記載の包装箱。     A pair of oppositely arranged inner flaps, the first outer flaps fixed to the inner flaps respectively, and the first outer flaps along the first side of the inner flaps aligned with the first flaps and fixed to the inner flaps respectively A pair of lid portions disposed opposite to both ends of the pair of side plates disposed opposite to each other and having a second outer flap,
    A first continuous plate connected to the first outer flap and the side plate;
    And a second continuous plate connected to the second outer flap and the side plate.
    The inner flap and the side plate are broken along the first breaking portion and the second breaking portion, and the space between the inner flap and the side plate is broken along the first side starting from the cut portion. The packaging box according to claim 7, which is divided into the first continuous plate side and the second continuous plate side.
PCT/JP2018/023190 2017-06-20 2018-06-19 Packaging box WO2018235789A1 (en)

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JP2017120783 2017-06-20

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08198247A (en) * 1995-01-24 1996-08-06 The Pack Kk Unsealing structure of packaging case
JP2000025746A (en) * 1998-07-10 2000-01-25 Nissin Food Prod Co Ltd Packaging paper box
JP2001278259A (en) * 2000-03-28 2001-10-10 Rengo Co Ltd Commodity display paper case
JP2010264741A (en) * 2009-05-15 2010-11-25 Yasuo Yugawa Hook blade and corrugated cardboard
JP2012091799A (en) * 2010-10-25 2012-05-17 Kirin Brewery Co Ltd Packaging box
JP2013151315A (en) * 2012-01-26 2013-08-08 Riken Technos Corp Corrugated cardboard box
JP2016216107A (en) * 2015-05-22 2016-12-22 王子ホールディングス株式会社 Packaging box

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08198247A (en) * 1995-01-24 1996-08-06 The Pack Kk Unsealing structure of packaging case
JP2000025746A (en) * 1998-07-10 2000-01-25 Nissin Food Prod Co Ltd Packaging paper box
JP2001278259A (en) * 2000-03-28 2001-10-10 Rengo Co Ltd Commodity display paper case
JP2010264741A (en) * 2009-05-15 2010-11-25 Yasuo Yugawa Hook blade and corrugated cardboard
JP2012091799A (en) * 2010-10-25 2012-05-17 Kirin Brewery Co Ltd Packaging box
JP2013151315A (en) * 2012-01-26 2013-08-08 Riken Technos Corp Corrugated cardboard box
JP2016216107A (en) * 2015-05-22 2016-12-22 王子ホールディングス株式会社 Packaging box

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JPWO2018235789A1 (en) 2020-04-23

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