WO2018207814A1 - Packaging box - Google Patents

Packaging box Download PDF

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Publication number
WO2018207814A1
WO2018207814A1 PCT/JP2018/017913 JP2018017913W WO2018207814A1 WO 2018207814 A1 WO2018207814 A1 WO 2018207814A1 JP 2018017913 W JP2018017913 W JP 2018017913W WO 2018207814 A1 WO2018207814 A1 WO 2018207814A1
Authority
WO
WIPO (PCT)
Prior art keywords
line
side plate
outer flap
flap
folding
Prior art date
Application number
PCT/JP2018/017913
Other languages
French (fr)
Japanese (ja)
Inventor
西川　洋一
大谷　昌義
一志 石井
政 張
賢司 十代
Original Assignee
レンゴー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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 JP2019517660A priority Critical patent/JP7073352B2/en
Publication of WO2018207814A1 publication Critical patent/WO2018207814A1/en

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Classifications

    • 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
    • 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
    • B65D5/64—Lids
    • B65D5/66—Hinged lids

Definitions

  • the present invention relates to a packaging box.
  • Patent Document 1 discloses a wrap-around type packaging box in which the end of a square cylindrical outer peripheral wall is closed with a pair of outer flaps and a pair of inner flaps.
  • the outer peripheral wall of the packaging box includes a first side plate provided with an outer flap and a second side plate provided with an inner flap.
  • One of the pair of second side plates is provided with a breaking portion from one of the pair of inner flaps to the other.
  • the pair of first side plates is provided with a folding line from one of the pair of outer flaps to the other.
  • Each outer flap is provided with a breaking line from the front end of the outer flap to the folding curve of the first side plate.
  • the second side plate is broken by the breaking portion
  • the outer flap is broken by the breaking line
  • the first side plate is bent along the folding line, thereby opening the packaging box to both the left and right ( Can be opened.
  • the outwardly opened portion is elastically returned in the closing direction, so that workability is poor.
  • An object of the present invention is to provide a packaging box that can improve the workability of taking out articles in an opened state.
  • a first side plate an outer flap that is connected to a pair of opposing first sides of the first side plate, and is bent with respect to the first side plate;
  • a second side plate that is connected to a pair of second sides that intersect with the first side and is bent in the same direction as the outer flap with respect to the first side plate, and intersects the second side of the first side plate.
  • a packaging box is provided that includes an outer flap folding line that extends toward a tip and bends the outer flap when the outer flap breaks along the second breaking line.
  • the first side plate is broken along the first break line
  • the outer flap is broken along the second break line
  • the second side plate is broken along the third break line.
  • the outer flap when the outer flap is broken along the second breaking line, the outer flap is bent along the outer flap folding curve, so that the operation force for breaking can be concentrated on the second breaking line. Therefore, the workability of the outer flap can be improved.
  • the inner flap is provided with a notch having a side extending along the outer flap folding curve.
  • a notch having a side extending along the outer flap folding curve.
  • the inner flap is provided with an inner flap folding curve that extends along the outer flap folding curve and bends the inner flap.
  • the inner flap bends along the inner flap folding curve, the bending of the outer flap along the outer flap folding curve can be promoted. Therefore, the workability of the outer flap can be effectively improved.
  • the second side plate extends from the third break line toward the second side of the first side plate, and bends the second side plate when the second side plate breaks along the third break line.
  • a two-side plate folding curve is provided. According to this aspect, when the second side plate is broken along the third breaking line, the second side plate is bent along the second side plate folding curve, so that the operation force for breaking is concentrated on the third breaking line. Can be made. Therefore, the workability of breaking the second side plate can be improved.
  • a first side plate an outer flap that is connected to a pair of opposing first sides of the first side plate and is bent with respect to the first side plate, and the first side plate.
  • a second side plate that is connected to a pair of second sides intersecting with the first side and is bent in the same direction as the outer flap with respect to the first side plate, and the second side of the first side plate,
  • An inner flap that is connected to a pair of third sides of the intersecting second side plate and is bent with respect to the second side plate so as to be positioned on an inner surface of the outer flap; and provided on the first side plate,
  • An operating portion for breaking the first side plate a first breaking line provided on the first side plate extending from the operating portion to the first side; provided on the outer flap; and the first breaking line;
  • a second break line that is continuous and extends toward the tip of the outer flap;
  • a third break line provided on at least one of the second side plates and extending from one side to the other of the pair of third sides of the second side plate
  • the inner flap is provided with a fourth break line extending from the tip side of the inner flap so as to be continuous with the third break line.
  • a notch for breaking the inner flap along the fourth breaking line is formed at the tip of the inner flap. According to this aspect, it is possible to improve the break workability of the inner flap along the fourth break line.
  • the upper side portion of the packaging box is removed by breaking the first side plate, the outer flap, and the second side plate along each breaking line. Can be improved. Further, when the outer flap breaks, the outer flap is bent along the outer flap folding curve, so that the workability of breaking along the second breaking line can be improved.
  • the perspective view which shows the packaging box which concerns on 1st Embodiment of this invention Sectional drawing of the packaging box of FIG.
  • work of a packaging box.
  • Sectional drawing of the packaging box of FIG. The top view which shows the blank of the packaging box of FIG.
  • Sectional drawing of the packaging box of FIG. The top view which shows the blank of the packaging box of FIG.
  • Sectional drawing of the packaging box of FIG. The top view which shows the blank of the packaging box of FIG.
  • Sectional drawing of the packaging box of FIG. The top view which shows the blank of the packaging box of FIG.
  • the top view which shows the blank of the packaging box of a modification The top view which shows the blank of the packaging box of another modification.
  • the top view which shows the blank of the packaging box of another modification. The top view which shows the blank of the packaging box of another modification.
  • the top view which shows the blank of the packaging box of another modification. The top view which shows the blank of the packaging box of another modification.
  • the top view which shows the blank of the packaging box of another modification. The top view which shows the blank of the packaging box of another modification.
  • the top view which shows the blank of the packaging box of another modification The top view which shows the blank of the packaging box of another modification.
  • the top view which shows the blank of the packaging box of another modification. The top view which shows the blank of the packaging box of another modification.
  • the top view which shows the blank of the packaging box of another modification. Sectional drawing of the packaging box of another modification.
  • FIGS. 1 and 2 show a packaging box 10 according to a first embodiment of the present invention.
  • the packaging box 10 is a wrap-around case including a square cylindrical outer peripheral wall 12 and lid walls 20 and 20 that close openings at both ends of the outer peripheral wall 12.
  • the break lines 35 and 45 are provided on the outer peripheral wall 12 and the break lines 40 and 50 are provided on the lid wall 20 so that the article can be opened in a good state.
  • the packaging box 10 is formed by bending and pasting a predetermined portion of one blank 10 ′ shown in FIG.
  • the blank 10 ' is formed by punching the paper cardboard sheet 1 with a known paper container punching device.
  • the corrugated cardboard sheet 1 has a configuration in which a corrugated shin 4 is disposed between the front liner 2 and the back liner 3.
  • a one-dot chain line in FIG. 3 is a general ruled line formed by putting a rule from the back liner 3 so as to compress the thickness as shown in FIG. 4B.
  • FIG. 3 is a cutting line formed by inserting a blade from the back liner 3 to the front liner 2 and a shape line (edge) by punching, as shown in FIG. 4C.
  • FIG. 4D shows a reverse ruled line formed by putting a rule from the front liner 2 so as to compress the wall thickness.
  • This reverse ruled line is used in a blank 10 ′ of a packaging box of a modified example shown in FIG. 33, which will be described later, and is indicated by a two-dot chain line in FIG.
  • the outer peripheral wall 12 includes a bottom plate 13, a top plate (first side plate) 14, and a pair of side plates (second side plates) 15A and 15B.
  • the bottom plate 13 and the top plate 14 have a rectangular shape in which the dimension in the X (width) direction is shorter than the dimension in the Y (depth) direction, and is arranged in parallel to face each other.
  • the side plates 15A and 15B have a rectangular shape in which the dimension in the Y direction is longer than the dimension in the Z (height) direction, and are arranged in parallel to face each other.
  • the bottom plate 13 and the top plate 14 and the side plates 15A and 15B have the same dimension in the Y direction and are bent so as to extend in the orthogonal direction.
  • the dimension in the X direction of the bottom plate 13 and the top plate 14 is longer than the dimension in the Z direction of the side plates 15A and 15B.
  • the side plate 15B, the bottom plate 13, the side plate 15A, and the top plate 14 are connected in series through a folding line 17 from the left side to the right side.
  • a sticking plate 16 is connected to the side plate 15B located at the left end via a folding line 17.
  • the sticking plate 16 is stuck (hot melted) to the inner surface (back liner 3 side) of the top plate 14 located at the right end in FIG. 3 using an adhesive such as a hot melt resin.
  • the folding line 17 is formed of a general ruled line, and extends in the Y direction in the assembled state of FIGS.
  • the lid walls 20 and 20 have a rectangular shape in which the dimension in the Z direction is shorter than the dimension in the X direction, and are arranged in parallel to face each other.
  • the dimension of the lid wall 20 in the X direction is the same as the dimension of the bottom plate 13 and the top plate 14 in the X direction
  • the dimension of the lid wall 20 in the Z direction is the same as the dimensions of the side plates 15A and 15B in the Z direction.
  • the lid wall 20 includes an outer flap 21 connected to the end of the bottom plate 13, an outer flap 22 connected to the end of the top plate 14, and inner flaps 23, 23 connected to the ends of the side plates 15A and 15B. It consists of and.
  • the outer flaps 21 and 22 are connected to the bottom plate 13 and the top plate 14 via a folding line 24 formed of a general ruled line extending in the X direction.
  • the outer flap 21 is bent in the same upward direction as the side plates 15A and 15B with respect to the bottom plate 13, and the outer flap 22 is bent in the same downward direction as the side plates 15A and 15B with respect to the top plate 14.
  • the outer flaps 21 and 22 have a rectangular shape in which the dimension in the X direction is longer than the dimension in the Z direction.
  • the projecting dimension (Z-direction dimension) of the outer flaps 21 and 22 from the folding curve (base end) 24 to the distal end is set to a length (half the dimension of the side plates 15A and 15B in the Z-direction) where the distal ends abut each other. Has been.
  • the inner flap 23 is connected to the side plates 15A and 15B via a folding line 25 made of a general ruled line extending in the Z direction.
  • the inner flaps 23, 23 are bent with respect to the side plates 15 ⁇ / b> A, 15 ⁇ / b> B so as to be positioned on the inner surfaces (the back liner 3 side) of the outer flaps 21, 22.
  • All the inner flaps 23 have a rectangular shape in which the dimension in the X direction is shorter than the dimension in the Z direction.
  • the projecting dimension of the inner flap 23 from the folding line 25 to the tip is set to a length in which the tip of the inner flap 23 and the tips of the outer flaps 21 and 22 are positioned on a straight line in the state of the blank 10 'shown in FIG. Has been.
  • the end of the top plate 14 where the outer flap 22 is continuous and the folding lines 24 and 24 are formed is a pair of first sides facing the top plate (first side plate) 14.
  • the ends of the top plate 14 where the side plates 15A and 15B are continuous and the folding lines 17 and 17 are formed are a pair of second sides of the top plate (first side plate) 14.
  • the ends of the side plates 15A and 15B where the inner flaps 23 and 23 are continuous and the folding lines 25 and 25 are formed are a pair of third sides of the side plates (second side plates) 15A and 15B.
  • the folding line (second side) 17 extends in a direction orthogonal to the folding line (first side) 24, and the folding line (third side) 25 includes the folding line (first side) 24 and the folding line. It extends in a direction perpendicular to the (second side) 17.
  • the packaging box 10 is sealed as follows. First, in the state of the blank 10 ′ in FIG. 3, an article to be accommodated on the upper surface (back liner 3 side) of the bottom plate 13 is arranged. Next, the side plates 15 ⁇ / b> A and 15 ⁇ / b> B are bent with respect to the bottom plate 13. Thereafter, the sticking plate 16 is bent with respect to the side plate 15B, the top plate 14 is bent with respect to the side plate 15A, and the sticking plate 16 and the top plate 14 are attached by hot melt.
  • the inner flaps 23 and 23 are bent with respect to the side plates 15A and 15B.
  • the outer flap 21 is bent with respect to the bottom plate 13 and the outer flap 22 is bent with respect to the top plate 14. And the overlapping part of the inner flaps 23 and 23 and the outer flaps 21 and 22 is stuck by hot melt.
  • the cover wall 20 is formed and the opening of both ends of the outer peripheral wall 12 is sealed.
  • a hot melt (sticking portion) 70 for sticking the outer flap 22 and the inner flap 23 is indicated by a broken line.
  • the packaging box 10 is configured to be selectively opened in any of the first opened state shown in FIG. 6, the second opened state shown in FIG. 7, and the third opened state shown in FIG. In order to open in these states, as shown in FIGS. 1 and 2, the packaging box 10 includes an operation unit 30 for opening operation, a first break line 35, a second break line 40, and a third break line 45. , And a fourth break line 50 is provided.
  • the operation unit 30 is formed at the center of the top plate 14.
  • the operation unit 30 includes a folding line 31, a pair of first breaking parts 32, and a second breaking part 33.
  • the folding line 31 is formed of general-purpose ruled lines, and extends in the Y direction so as to be parallel to the folding line 17.
  • the first breaking portion 32 is provided at both ends of the folding line 31.
  • Each of the first breakage portions 32 includes a plurality of cutting lines provided at predetermined intervals so as to form a perforation, and extends in the Y direction from the end of the folding line 31 toward the outer flap 22.
  • rupture part 33 is comprised by the some cutting line provided at predetermined intervals so that the perforated shape might be made.
  • the second break portion 33 is formed in an arc shape from one outer end of the pair of first break portions 32, 32 to the other outer end so as to extend along the folding line 31 and the first break portion 32. ing.
  • the first break line 35 is provided on both sides of the operation unit 30 of the top plate 14. Each first break line 35 extends in the Y direction from the end in the Y direction of the operation unit 30 to the folding line 24 between the top plate 14 and the outer flap 22.
  • the first breaking line 35 is composed of a plurality of cutting lines formed in a Y shape, and these cutting lines are provided at predetermined intervals in the Y direction.
  • the cutting line is provided in such a posture that the bifurcated branch is positioned on the operation unit 30 side.
  • the second break line 40 is provided on the outer flap 22.
  • the second break line 40 extends from the folding line 24 toward the tip of the outer flap 22 so as to be continuous with the first break line 35.
  • the second break line 40 is formed so as to bend or incline toward the side plate 15A.
  • the curvature or inclination angle of the second break line 40 is set to a size that passes through the front end side of the outer flap 22 in the hot melt 70.
  • rupture line 40 is comprised by the linear 1st cutting line and the Y-shaped 2nd cutting line.
  • the second cutting line is provided in such a posture that the bifurcated branch is located on the top plate 14 side.
  • the end of the first break line 35 and the end of the second break line 40 may be positioned at the same point on the folding line 24, or may be positioned at a predetermined interval. That is, the second break line 40 provided so as to be continuous with the first break line 35 means that the outer flap 22 is formed along the second break line 40 following the break of the top plate 14 along the first break line 35. It means a form that can be broken, and the first break line 35 and the second break line 40 may be strictly continuous or may be substantially continuous.
  • the third break line 45 is provided on each of the side plates 15A and 15B.
  • the third breaking line 45 extends in the Y direction from one to the other among the folding lines 25, 25 at both ends of the side plates 15A, 15B.
  • the third break line 45 includes a first break portion 46 and a second break portion 47.
  • rupture part 46 is comprised by the two cutting lines which incline downward toward the inner side from the outer side of a Y direction.
  • the outer end in the Y direction of the first fracture portion 46 is located at the center of the folding line 25 in the Z direction.
  • rupture part 47 is comprised by the several linear cutting line formed at predetermined intervals in the Y direction.
  • the end in the Y direction of the second breakage portion 47 is disposed at a distance from the inner end in the Y direction of the pair of first breakage portions 46, 46.
  • rupture part 47 of this embodiment is comprised by 2 types of linear cutting lines from which the full length of a Y direction differs.
  • the fourth break line 50 is provided on each of the four inner flaps 23.
  • the fourth break line 50 extends in the X direction from the tip of the inner flap 23 to the folding line 25 so as to be continuous with the third break line 45.
  • the end of the third break line 45 and the end of the fourth break line 50 may be positioned at the same point on the folding line 25, or may be positioned at a predetermined interval. That is, the fourth break line 50 provided so as to be continuous with the third break line 45 is the side plates 15A and 15B along the third break line 45 following the break of the inner flap 23 along the fourth break line 50.
  • the third break line 45 and the fourth break line 50 may be strictly continuous or may be substantially continuous.
  • the 4th broken line 50 of this embodiment is comprised by the 1st fracture
  • the first fracture portion 51 is composed of a first cutting line and a second cutting line that are inclined downward from the inner side (front end) in the X direction of the inner flap 23 toward the outer side (base end).
  • the first cutting line is linear and extends in the X direction from the center in the Z direction at the tip of the inner flap 23.
  • the second cutting line has a curved shape curved downward, and three lines are provided at predetermined intervals.
  • the second break portion 52 includes a first cut line and a second cut line that are inclined upward from the outer end in the X direction of the first break portion 51 toward the intersection of the second break portion 47 and the folding line 25. It is configured.
  • the first cutting line is straight and extends in the X direction from the outer end of the first breakage portion 51 in the X direction.
  • the second cutting line has a curved shape curved downward, and is provided between the first fracture portion 51 and the folding line 25.
  • the inside of the operation unit 30 surrounded by the folding line 31, the first breaking part 32, and the second breaking part 33 shown in FIG. 1 is pushed from the outside. Thereby, the top plate 14 is broken along the first breakage portion 32 and the second breakage portion 33, and the operation portion 30 is opened.
  • a hand is inserted into the packaging box 10 from the opening of the operation unit 30, and the side where the second break line 40 of the outer flap 22 extends, that is, the side plate 15 ⁇ / b> A side of the top plate 14 is gripped. Pull up. Thereby, the top plate 14 is broken along the first break line 35.
  • the pair of outer flaps 22 and 22 are broken along the second break line 40 by continuously performing the opening operation that holds the operation unit 30. Further, the inner flaps 23, 23 attached to the outer flaps 22, 22 are broken along the fourth break lines 50, 50. Further, the side plate 15 ⁇ / b> A is broken along the first break portion 46 of the third break line 45, and the side plate 15 ⁇ / b> A is valley-folded along the second break portion 47.
  • the side plate 15B side of the top plate 14 is gripped and pulled up.
  • the inner flaps 23, 23 continuing to the side plate 15 ⁇ / b> B are broken along the fourth break lines 50, 50.
  • the side plate 15B is broken along the first broken portion 46 of the third broken line 45, and the side plate 15B is valley-folded along the second broken portion 47.
  • the packaging box 10 to be in a first opened state where it is opened on both the left and right sides.
  • the top plate 14 side can be opened and closed with the second broken portion 47 of the third broken line 45 as a hinge. Therefore, when only a part of the articles in the packaging box 10 is taken out and the remaining articles are not taken out from the packaging box 10, it can be resealed, which is preferable.
  • the top plate 14 side is separated as shown in FIG. Can be in the second opened state.
  • a part of the side plates 15A, 15B above the third break line 45 including the top plate 14 is part of the remaining side plates 15A, 15B below the third break line 45 including the bottom plate 13.
  • the packaging box 10 is brought into the third opened state by removing only the side plate 15 ⁇ / b> A side including a part of the top plate 14 without removing the side plate 15 ⁇ / b> B side including a part of the top plate 14. You can also.
  • a part of the top plate 14 on the side plate 15B side remains, so that another packaging box 10 can be stacked thereon. Therefore, it is suitable when selling at a store or the like.
  • the packaging box 10 has an outer flap folding curve 60 and a side plate folding curve (second side folding curve) 65 in order to improve the breaking workability along the breaking lines 40 and 45. Is provided.
  • the outer flap folding line 60 is provided on the outer flap 22.
  • the outer flap folding line 60 concentrates the opening operation force on the second breaking line 40 by folding the outer flap 22 when the outer flap 22 breaks along the second breaking line 40.
  • the outer flap folding line 60 is formed of a general ruled line, and extends from the folding line 24 in an inclined manner toward the tip of the outer flap 22.
  • the outer flap fold curve 60 extends from the intersection of the fold curve 24 and the fold curve 25 toward the tip of the second break line 40.
  • the inclination angle of the outer flap folding line 60 is set to a size that passes between the hot melt 70 and the folding line 24 without intersecting the hot melt 70.
  • One end of the outer flap folding line 60 located on the folding line 24 side and the intersection of the folding line 24 and the folding line 25 are located at a predetermined interval.
  • the other end of the outer flap folding line 60 located on the front end side of the outer flap 22 and the front end of the second break line 40 are located at a predetermined interval.
  • the direction of the opening operation is on the same ZX plane as the direction in which the outer flap 22 extends. That is, when the outer flap folding line 60 is not provided, the outer flap 22 is torn along the second breaking line 40, so that the breaking operation is difficult.
  • the outer flap 22 when the outer flap 22 breaks along the second break line 40, the outer flap 22 folds along the outer flap folding curve 60. Therefore, since a shearing force acts on the outer flap 22 along the second break line 40, the workability of the outer flap 22 along the second break line 40 can be improved.
  • the outer flap folding curve 60 also has a function of promoting the breaking of the inner flap 23 along the fourth breaking line 50. Specifically, when the outer flap 22 is bent along the outer flap folding curve 60, the operating force is transmitted to the inner flap 23 via the hot melt 70, and the inner flap 23 is pulled upward in the Z direction. Thereby, since a pulling force acts on the fourth break line 50, the break workability of the inner flap 23 along the fourth break line 50 can be improved.
  • Side plate folding curves 65 are provided on both sides of the side plates 15A and 15B, respectively.
  • the side plate folding curve 65 concentrates the opening operation force on the third breaking line 45 by bending the side plates 15A and 15B when the side plates 15A and 15B break along the third breaking line 45.
  • the side plate folding curve 65 consists of a general ruled line, and it inclines and extends from the 3rd broken line 45 toward the folding curve 17 of the boundary of the top plate 14 and side plate 15A, 15B.
  • the pair of side plate folding curves 65 are inclined toward the folding curve 17 from the center in the Y direction of the first fracture portion 46 of the third fracture line 45 in a direction approaching gradually.
  • One end of the side plate folding curve 65 located on the first breakage portion 46 side is located at a predetermined interval with respect to the first breakage portion 46.
  • the other end of the side plate folding curve 65 located on the folding curve 17 side is located at a predetermined interval with respect to the folding curve 17.
  • the opening operation is performed by using the third fracture line 45 as a fulcrum for the upper portion of the side plates 15A and 15B. It becomes the direction to rotate as. That is, when the side plate folding curve 65 is not provided, the force due to the opening operation hardly acts on the front liner 2 of the side plates 15A and 15B, so that the breaking operation is difficult.
  • the side plates 15A and 15B are broken along the third break line 45, the side plates 15A and 15B are bent along the side plate folding curve 65. Therefore, since a shearing force outward in the X direction acts on the front liner 2 of the side plates 15A and 15B, the workability of the side plates 15A and 15B along the third break line 45 can be improved.
  • the outer flap 22 when the outer flap 22 is broken along the second breaking line 40, the outer flap 22 is bent along the outer flap folding curve 60. Can be concentrated on the second breaking line 40. At this time, the operating force of the outer flap 22 can be transmitted to the inner flap 23 via the hot melt 70, and the operating force for breaking can be concentrated on the fourth breaking line 50. Further, when the side plates 15A and 15B are broken along the third breaking line 45, the side plates 15A and 15B are bent along the side plate folding curve 65, so that the operating force for breaking is changed to the third breaking line 45. Can concentrate. Therefore, the opening workability
  • (Second Embodiment) 9 to 11 show the packaging box 10 of the second embodiment.
  • This packaging box 10 is higher in overall height in the Z direction than the packaging box 10 of the first embodiment.
  • the lid wall 20 is configured by a short flap in which the tips of the outer flaps 21 and 22 are positioned with a space between them, and the tips of the inner flaps 23 and 23 are positioned with a space between them.
  • the rupture structure of the entire top plate 14 including the operation unit 30 and the pair of first rupture lines 35 and 35 is formed in a generally convex shape.
  • Each of the first break lines 35 has a shape that is generally curved in an S shape so that the end on the folding line 24 side is positioned on the side plate 15A side with respect to the operation unit 30.
  • the first break line 35 includes a first break portion 36 that is curved toward the side plate 15 ⁇ / b> A, and a second break portion 37 that is curved from the first break portion 36 toward the folding line 24.
  • the second break line 40 is formed from the folding line 24 to the tip of the outer flap 22 so as to be continuous with the first break line 35.
  • the third break line 45 is formed in a wave shape that repeats arc-shaped irregularities from one end to the other end in the Y direction of the side plates 15A and 15B. Further, the third break line 45 is formed so as to be positioned at the upper end of the outer flap 21 continuous with the bottom plate 13.
  • the fourth fracture line 50 is formed so as to extend linearly in the X direction as a whole.
  • the fourth break line 50 is formed so as to be positioned at the upper end of the outer flap 21, as with the third break line 45.
  • a notch 53 that is recessed outward in the X direction is provided at the tip of the inner flap 23.
  • the notch 53 is an operation part for starting the breaking operation of the inner flap 23 along the fourth breaking line 50.
  • the outer flap folding line 60 has an inclination angle determined from the intersection of the folding line 24 and the folding line 25 so as to pass between the hot melt (not shown) and the folding line 24.
  • the outer flap 22 is formed.
  • Side plate folding curves 65 are provided on both sides of the side plates 15A and 15B, respectively, as in the first embodiment.
  • a pair of side plate folding curves 65 formed on the individual side plates 15A and 15B are inclined in a direction gradually approaching from the third breaking line 45 toward the folding curve 17.
  • sealing and unsealing are performed as in the first embodiment.
  • the outer flap 22 is bent along the outer flap folding curve 60, so that the operation force for breaking can be concentrated on the second breaking line 40, so that the outer flap 22 is broken. Workability can be improved.
  • the notch 53 is provided in the inner flap 23, the rupture operability of the inner flap 23 along the fourth break line 50 can be improved.
  • the side plates 15A and 15B are bent along the side plate folding curve 65, the operating force for breaking can be concentrated on the third breaking line 45, so that the workability of breaking the side plates 15A and 15B can be improved.
  • (Third embodiment) 12-14 shows the packaging box 10 of 3rd Embodiment.
  • This packaging box 10 is higher in overall height in the Z direction than the packaging box 10 of the second embodiment.
  • the lid wall 20 is set to a length (half the dimension in the X direction of the bottom plate 13 and the top plate 14) where the tips of the inner flaps 23 and 23 abut each other, and the tips of the outer flaps 21 and 22 are spaced from each other.
  • the dimension is set to be open.
  • the sticking plate 16 is stuck to the inner surface (back liner 3) of the top plate 14.
  • the breaking structure of the entire top plate 14 including the operating portion 30 and the pair of first breaking lines 35, 35 is formed in a linear shape inclined with respect to the folding line 17 extending in the Y direction.
  • the first breaking line 35 located on the folding lines 24, 24 one is biased toward the side plate 15A and the other is biased toward the side plate 15B.
  • the cutting line which comprises the 1st breaking line 35 is comprised by the single zipper provided with the 1st cutting part extended along a breaking direction, and the 2nd cutting part extended incline with respect to a 1st cutting part. ing.
  • the second cutting unit is disposed toward the operation unit 30.
  • the two operation parts 30 are provided along the inclination direction of the 1st breaking lines 35 and 35. As shown in FIG. These operation parts 30 are composed of a folding line 31 and a substantially semicircular fracture part 33.
  • the folding lines 31 and 31 are formed so as to be positioned on a straight line with respect to the first breaking line 35.
  • the second fracture portion 33 has one end located at one end of the folding line 31 and the other end located at the other end of the folding line 31.
  • the breaking portion 33 of one operation portion 30 protrudes to the side plate 15A side, and the breaking portion 33 of the other operation portion 30 protrudes to the side plate 15B side.
  • the second break line 40 is formed from the folding line 24 to the center of the tip of the outer flap 22.
  • the end of the second break line 40 on the top plate 14 side and the end of the first break line 35 on the outer flap 22 side are located at the same point on the folding line 24. That is, the first break line 35 and the second break line 40 are continuous.
  • the second break line 40 formed on one outer flap 22 is inclined toward one side plate 15A, and the second break line 40 formed on the other outer flap 22 is inclined toward the other side plate 15B. Has been.
  • the third break line 45 is generally formed in a V shape as a whole. That is, the third break line 45 includes break portions 48 a and 48 b that are inclined downward from the folding line 25 along the Y direction. The upper ends of the fracture portions 48 a and 48 b are arranged at a position slightly higher than the upper end of the outer flap 21.
  • the fourth break line 50 is inclined upward from the front end of the inner flap 23 to the folding line 25 so as to continue to the third break line 45 subsequent to the fourth break line 50. is doing.
  • a notch 53 is provided at the tip of the inner flap 23 as in the second embodiment.
  • the outer flap folding line 60 is provided on the outer flap 22 on the side where the second breaking line 40 is inclined. That is, the outer flap folding line 60 is formed on the outer flap 22 in which the second breaking line 40 is inclined toward the side plate 15A toward the side plate 15A. On the outer flap 22 where the second breaking line 40 is inclined toward the side plate 15B, an outer flap folding curve 60 is formed toward the side plate 15B.
  • Side plate folding curves 65 are provided on both sides of the side plates 15A and 15B, respectively, as in the first embodiment.
  • the pair of side plate folding curves 65 are inclined so as to gradually approach the top plate 14.
  • sealing and unsealing are performed as in the second embodiment.
  • the outer flap 22 is bent along the outer flap folding curve 60, so that the operation force for breaking can be concentrated on the second breaking line 40, so that the outer flap 22 is broken. Workability can be improved.
  • the notch 53 is provided in the inner flap 23, the rupture operability of the inner flap 23 along the fourth break line 50 can be improved.
  • the side plates 15A and 15B are bent along the side plate folding curve 65, the operating force for breaking can be concentrated on the third breaking line 45, so that the workability of breaking the side plates 15A and 15B can be improved.
  • the packaging box 10 includes a chamfered portion 27 between the bottom plate 13 and the side plates 15A and 15B and between the top plate 14 and the side plates 15A and 15B (sticking plate 16).
  • a chamfered portion 27 is also provided between the top plate 14 and the pair of outer flaps 22 and 22.
  • the folding line 17 and the folding line 24 are not provided.
  • the formation (design) of the break lines 35 and 40 and the auxiliary folding curves 55 and 60 is performed by regarding the chamfered portion 27 as part of the folding lines 17 and 24.
  • a first break line 35 formed on the top plate 14, a second break line 40 formed on the outer flap 22, a third break line 45 formed on the side plates 15A and 15B, and a fourth break line 50 formed on the inner flap 23 are: This is the same as in the first embodiment.
  • the outer flap folding line 60 is provided in the outer flap 22 as in the first embodiment.
  • the side plate folding curve 65 is provided on both sides of the side plates 15A and 15B, and is provided from the third fracture line 45 toward the folding curve 17 so as to be orthogonal to the folding curve 17 (the chamfered portion 27). . *
  • the packaging box 10 of the fourth embodiment configured as described above can obtain the same operations and effects as those of the first embodiment.
  • (Fifth embodiment) 18 to 21 show the packaging box 10 of the fifth embodiment. Similar to the third embodiment, the packaging box 10 has an overall height in the Z direction higher than that of the packaging box 10 of the first embodiment, the leading ends of the inner flaps 23 and 23 abut each other, and the outer flaps 21 and 22 The dimensions are set such that the tips are positioned at an interval. Moreover, the front end of the outer flaps 21 and 22 and the front end of the inner flaps 23 and 23 are set to dimensions that are not uniform in the state of the blank 10 ′.
  • the first break line 35 including the operation unit 30 is formed at a position biased toward the side plate 15B.
  • the second break line 40 is provided from the folding line 24 to the tip of the outer flap 22.
  • the third break line 45 is obtained by increasing the entire length in the Y direction of the first break portion 46 and shortening the entire length in the Y direction of the second break portion 47 as compared with the first embodiment.
  • the fourth break line 50 is configured to extend linearly in the X direction as in the second embodiment.
  • the outer flap folding line 60 is provided on the outer flap 22 so as to be located on the side plate 15A side, as in the first embodiment.
  • the side plate folding curve 65 is provided on both sides of the side plates 15A and 15B in the same manner as in the first embodiment.
  • a notch 72 is provided on the upper portion of the inner flap 23 continuous with the side plate 15A.
  • the notch 72 has a first side 72a inclined upward along the outer flap folding line 60 from the tip of the inner flap 23 toward the folding line 25, and from the upper end of the first side 72a toward the upper end of the inner flap 23. And a second side 72b extending.
  • the bottom plate 13 has a pair of operation portions 75 and 75 constituted by a folding line 76, a first breakage portion 77, and a second breakage portion 78 spaced apart in the X direction. Is formed. Further, the bottom plate 13 is provided with a breaking line 80 extending from the folding line 17 located at the end of the bottom plate 13 in the X direction to the end of the operation portion 75 in the Y direction. The breaking line 80 is formed by forming a linear cutting line at a predetermined interval.
  • the packaging box 10 is provided with the first breaking line 35 on the top plate 14, the second breaking line 40 on the outer flap 22, and the side plates 15A and 15B.
  • the third break lines 45, 45 and providing the fourth break line 50 on the inner flap 23 it is possible to improve the workability of taking out the article because it can be opened in a necessary state.
  • outer flap folding curve 60 on the outer flap 22 and providing the side plate folding curves 65, 65 on the side plates 15A, 15B, it is possible to improve the breaking workability of the packaging box 10 along the breaking lines 40, 45.
  • the width in the X direction, the depth in the Y direction, and the height in the Z direction of the packaging box 10 can be changed as necessary.
  • the protrusion dimension of the outer flaps 21 and 22 and the inner flaps 23 and 23 which comprise the cover wall 20 can also be changed as needed.
  • the first break line 35, the second break line 40, the third break line 45, the fourth break line 50, the outer flap fold curve 60, and the side plate fold curve 65 are provided.
  • the packaging box 10 can be opened in a state where the take-out workability is good.
  • Modification of packaging box 22 to 33 show modifications of the packaging box blank 10 '. Like these blanks 10 ', the configuration of the first break line 35, the second break line 40, the third break line 45, the fourth break line 50, the outer flap folding curve 60, and the side plate folding curve 65 is necessary. It can be changed accordingly. Further, the top plate 14 may be provided with a top plate bent portion 55 for accelerating breakage of the top plate 14 along the first break line 35 as necessary.
  • the first breaking line 35 of the first embodiment is formed in a straight line parallel to the folding line 17.
  • the same configuration as the first break line 35 is used in the fourth embodiment of FIG. 17, the fifth embodiment of FIG. 21, and the modifications of FIGS. 22 to 29 and FIG.
  • first breaking line 35 may have a shape other than a straight line as shown in the modification examples of FIGS. 30 and 31.
  • the entire pair of first break lines 35, 35 including the operation unit 30 is formed in an arc shape.
  • first break line 35 of the second embodiment in FIG. 11 is characterized in that a part including the operation part 30 is in a position protruding from the other part.
  • the same configuration as the first break line 35 of the second embodiment is used in the modification of FIG.
  • first break line 35 of the third embodiment in FIG. 14 is characterized in that the whole including the operation unit 30 is inclined with respect to the folding line 17.
  • the first break line 35 may be in any form of a straight line, a circular arc, a V shape, or a shape in which only a part protrudes. Further, the angle with respect to the folding line 17 can be changed as necessary.
  • the second break line 40 extends from the folding line 24 to the tip of the outer flap 22, and is inclined (curved) toward the side plate 15A.
  • the same configuration as the second break line 40 is used in the modified examples of FIGS. 21 to 24, 27, 28, and 30 to 32.
  • the tip of the second break line 40 is positioned at a predetermined interval with respect to the tip of the outer flap 22, and the second break line 40 of the second embodiment is Is different.
  • the same configuration as the second break line 40 of the first embodiment is used in the fourth embodiment in FIG. 17 and the modified examples in FIGS. 25 and 33.
  • the direction in which the second break line 40 is inclined is different between one of the pair of outer flaps 22 and 22 and the other.
  • two second break lines 40 are provided so as to extend to both the side plates 15A and 15B.
  • the second break line 40 is not inclined, but is a straight line extending in a direction orthogonal to the folding line 24.
  • the number of the second break lines 40 may be only one, or two. Moreover, you may change the inclination-angle and curvature rate of the 2nd fracture
  • outer flap folding line 60 As a typical form of the outer flap folding line 60 formed on the outer flap 22, the first embodiment of FIG. The outer flap folding line 60 is inclined from the folding line 24 toward the tip of the outer flap 22.
  • the configuration similar to the outer flap folding line 60 is the second to fifth embodiments shown in FIGS. 11, 14, 17, and 21, FIGS. 22, 24, 25, and 27 to 29. 32 and 33 are used in the modified example.
  • a pair of outer flap folding curves 60 are provided on both sides of the outer flap 22.
  • outer flap folding curve 60 may be provided, or two outer flap folding lines 60 may be provided on both sides of the second breaking line 40. Moreover, you may change the inclination-angle of the outer flap folding curve 60 as needed. Moreover, it is good also as a structure which provides only the side plate folding curve 65, without providing the outer flap folding curve 60 like the modification of FIG.
  • the third break line 45 includes a first break portion 46 that is inclined inward and downward from the folding lines 25 and 25 on both sides of the side plates 15A and 15B, and a second breaking portion 47 that is parallel to the folding line 17. ing.
  • the same configuration as the third break line 45 is used in the fourth embodiment of FIG. 17, the fifth embodiment of FIG. 21, and the modified examples of FIGS. 22 and 24 to 33.
  • the third break line 45 is formed in a wave shape that repeats arc-shaped irregularities.
  • the same configuration as the third break line 45 of the second embodiment is used in the modification of FIG.
  • the 3rd broken line 45 is formed in the V shape as a whole.
  • the shape of the third break line 45 may be changed as necessary. Moreover, you may provide the part which protrudes in the 2nd fracture
  • a typical embodiment of the side plate folding curve 65 formed on the side plates 15A and 15B is the first embodiment shown in FIG.
  • a pair of the side plate folding curves 65 are provided with respect to the side plates 15A and 15B, and they are inclined so as to gradually approach from the third breaking line 45 toward the folding curve 17 on the top plate 14 side.
  • the same configuration as the side plate folding curve 65 includes the second embodiment shown in FIG. 11, the third embodiment shown in FIG. 14, the fifth embodiment shown in FIG. 21, the FIGS. 22, 24, 26, 28, 29, and 29. It is used in the modified example of FIGS.
  • the side plate folding curve 65 may be provided only on one side of the side plates 15A and 15B. Further, the side plate folding curve 65 may be provided so as to extend in a direction orthogonal to the folding curve 17 as shown in the fourth embodiment of FIG. 17 and the modification examples of FIGS. Can be changed as necessary. Moreover, it is good also as a structure which does not provide the side plate folding curve 65 like the modification of FIG.23 and FIG.30.
  • the fourth break line 50 is formed in a V shape so as to continue from the tip of the inner flap 23 to the third break line 45.
  • the same configuration as the third break line 45 is used in the fourth embodiment shown in FIG. 17 and the modifications shown in FIGS. 22, 24, 26, 27, 29, 30, and 33.
  • the fourth break line 50 is formed in a straight line shape.
  • the configuration similar to the fourth breaking line 50 of the second embodiment is the same as that of the third embodiment of FIG. 14, the fifth embodiment of FIG. 21, and the modifications of FIGS. 23, 25, 28, 31, and 32. Used in examples.
  • a notch 53 is provided at the tip of the inner flap 23.
  • the shape and inclination angle of the fourth break line 50 may be changed as necessary. Further, the inner flap 23 may be easily broken along the fourth breaking line 50 by the notch 53.
  • the top plate 14 may also be provided with a top plate folding curve 55 that promotes breakage of the top plate 14 along the first break line 35.
  • An example of the top plate folding curve 55 is shown in FIG.
  • the top plate folding curve 55 concentrates the opening operation force on the first breaking line 35 by bending the top plate 14 when the top plate 14 breaks along the first breaking line 35.
  • the top plate folding curve 55 is provided on both sides of the first breaking line 35.
  • Each top plate folding curve 55 includes a pair of first bent portions 55a and 55a extending from the first breaking line 35 toward the side plates 15A and 15B.
  • a pair of 1st bending part 55a consists of a general ruled line, and inclines in the direction which leaves
  • One end of the first bent portion 55a located on the operation unit 30 side is located at a predetermined interval from the operation unit 30.
  • a folding line 55c made of a general ruled line is constructed at one end of the pair of first bent portions 55a.
  • the other end of the first bent portion 55 a located on the folding line 17 side is located at a predetermined interval from the folding line 17.
  • top plate folding curve 55 may be as shown in a modification shown in FIG.
  • the top plate folding curve 55 of this modification is provided on both sides with the first break line 35 in between.
  • Each top plate folding curve 55 includes a pair of second bent portions 55b made of reverse ruled lines.
  • the pair of second bent portions 55b are inclined toward the side plates 15A and 15B from both ends of the first break line 35 so as to gradually approach each other.
  • One end of the second bent portion 55b located on the first break line 35 side is located at a predetermined interval from the intersection of the first break line 35 and the folding line 24.
  • the other end of the second bent portion 55b located on the folding line 17 side is located at a predetermined interval from the folding line 17.
  • the first bent portion 55 a is not limited to the configuration inclined outward from the operation unit 30, and may be provided in parallel along the folding line 25. Further, the inclination angle of the second bent portion 55b can be changed as necessary. Further, the top plate folding curve 55 may be provided on only one of the pair of side plates 15A and 15B in the first breaking line 35.
  • a typical form of the notch 72 formed in the inner flap 23 is the fifth embodiment of FIG.
  • the cutout 72 includes a first side 72 a extending along the outer flap folding curve 60 and a second side 72 b extending from the upper end of the first side 72 a toward the upper end of the inner flap 23.
  • a configuration similar to this notch 72 is used in the modified examples of FIGS. 22, 28, 30, and 32.
  • the cutout 72 may be configured only by the first side 72a.
  • the inner flap 23 may be provided with an inner flap folding curve 85 that extends along the outer flap folding curve 60 and bends the inner flap 23.
  • An example of the inner flap folding curve 85 is shown in the modified examples of FIGS.
  • the inner flap fold curve 85 is provided for promoting breakage of the outer flap 22 along the second break line 40 and for promoting breakage of the inner flap 23 along the third break line 45.
  • the inner flap fold curve 85 is a general ruled line, and is provided from the intersection of the fold curves 17 and 25 to the tip of the inner flap 23.
  • the inclination angle of the inner flap folding curve 85 is the same as the inclination angle of the outer flap folding curve 60 located outside in the assembled state.
  • the outer flap 22 After breaking the top plate 14 along the first break line 35, the outer flap 22 is broken along the second break line 40 and the inner flap 23 is broken along the fourth break line 50.
  • the outer flap 22 bends along the curve 60, and the inner flap 23 bends along the inner flap fold curve 85. Therefore, bending of the outer flap 22 along the outer flap folding curve 60 can be promoted. Therefore, the breaking workability of the outer flap 22 can be effectively improved, and the breaking workability of the inner flap 23 can be effectively improved by the bending of the inner flap 23.
  • the shapes of the first break line 35, the second break line 40, the third break line 45, and the fourth break line 50 can be changed as necessary. Further, the shape of the cutting line constituting each of the breaking lines 35 to 50 can be changed as necessary. Moreover, the shape and inclination angle of the top plate folding curve 55, the outer flap folding curve 60, the side plate folding curve 65, and the notch 72 or the inner flap folding curve 85 can be changed as necessary.
  • the packaging box 10 has the 1st broken line 35, the 2nd broken line 40, the 3rd broken line 45, the 4th broken line 50, the top plate folding curve 55 and the outer flap folding curve 60 besides the form shown in each figure.
  • the side plate folding curve 65 and the notch 72 or the inner flap folding curve 85 can be combined as necessary.
  • the inner flap 23 may be provided with a horizontal J-shaped cutting line 82 in place of the fourth breaking line 50. In this way, when a load is applied to the packaging box 10 from above, when the tip portion of the upper outer flap 22 overlaps the tip portion of the lower outer flap 21, the cutting line 82 The cutting edge of the inner flap 23 can overlap. Therefore, when the packaging boxes 10 are stacked, the lower packaging box 10 can be prevented from buckling due to the load of the upper packaging box 10.
  • the packaging box is not limited to a wraparound case, and may be a general-purpose packaging box having open ends at the top and bottom of the outer peripheral wall, and closing the open ends with flaps.
  • the material of the packaging box 10 is not limited to a paper cardboard sheet, and may be a resin cardboard sheet.
  • the material of the packaging box 10 is not limited to a corrugated cardboard sheet, and may be a single cardboard or a resin sheet.
  • second fracture part 40 ... second fracture line 45 ... third fracture line 46 ... first fracture part 47 ... second fracture part 48a , 48b ... fracture part 50 ... fourth fracture line 51 ... first fracture part 52 ... second fracture part 53 ... notch part 55 ... top plate folding curve 55a ... first folding part 55b ... second folding part 55c ... folding Curve 60 ... Outer flap fold curve 65 ... Side plate fold curve (second side fold curve) DESCRIPTION OF SYMBOLS 70 ... Hot melt 72 ... Notch 72a ... 1st edge 72b ... 2nd edge 75 ... Operation part 76 ... Folding curve 77 ... 1st fracture

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  • Mechanical Engineering (AREA)
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Abstract

A packaging box (10) is provided with: a first lateral plate (14); an outer flap (22) connected to the first lateral plate (14); a second lateral plate (15A, 15B) connected to the first lateral plate (14); and an inner flap (23) connected to the second lateral plate (15A, 15B). The first lateral plate (14) has an operation part (30) and a first break line (35), the outer flap (22) has a second break line (40), and the second lateral plate (15A, 15B) has a third break line (45). The outer flap (22) has an outer flap folding line (60) that extends from a first side (24) of the first lateral plate (14) to a tip end of the outer flap (22), the outer flap folding line (60) being configured to fold the outer flap (22) when the outer flap (22) is broken along the second break line (22).

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、四角筒状の外周壁の端部を、一対の外フラップと一対の内フラップとで塞いだラップアラウンド形式の包装箱が開示されている。この包装箱の外周壁は、外フラップが連設された第１側板と、内フラップが連設された第２側板とを備える。一対の第２側板のうちの一方には、一対の内フラップのうちの一方から他方にかけて破断部が設けられている。一対の第１側板には、一対の外フラップのうちの一方から他方にかけて折曲線が設けられている。各外フラップには、外フラップの先端から第１側板の折曲線にかけて破断線が設けられている。 Patent Document 1 discloses a wrap-around type packaging box in which the end of a square cylindrical outer peripheral wall is closed with a pair of outer flaps and a pair of inner flaps. The outer peripheral wall of the packaging box includes a first side plate provided with an outer flap and a second side plate provided with an inner flap. One of the pair of second side plates is provided with a breaking portion from one of the pair of inner flaps to the other. The pair of first side plates is provided with a folding line from one of the pair of outer flaps to the other. Each outer flap is provided with a breaking line from the front end of the outer flap to the folding curve of the first side plate.
実用新案登録第２５３７２９５号公報Utility Model Registration No. 2537295
　特許文献１の包装箱では、破断部によって第２側板を破断するとともに、破断線によって外フラップを破断し、折曲線に沿って第１側板を折り曲げることで、包装箱を左右両方に開くこと（観音開き）ができる。しかし、包装箱では、内部の物品を全て取り出す際に、外向きに開いた部分が閉じる向きに弾性的に戻るため、作業性が悪い。 In the packaging box of Patent Document 1, the second side plate is broken by the breaking portion, the outer flap is broken by the breaking line, and the first side plate is bent along the folding line, thereby opening the packaging box to both the left and right ( Can be opened. However, in the packaging box, when all the items inside are taken out, the outwardly opened portion is elastically returned in the closing direction, so that workability is poor.
　本発明は、開封状態での物品の取出作業性を向上できる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 that can improve the workability of taking out articles in an opened state.
　本発明の第１態様は、第１側板と、前記第１側板の対向する一対の第１辺に連設され、前記第１側板に対して折り曲げられた外フラップと、前記第１側板の前記第１辺と交差する一対の第２辺に連設され、前記第１側板に対して前記外フラップと同じ向きに折り曲げられた第２側板と、前記第１側板の前記第２辺と交差する前記第２側板の第３辺に連設され、前記外フラップの内面に位置するように前記第２側板に対して折り曲げられた内フラップと、前記第１側板に設けられ、前記第１側板を破断操作するための操作部と、前記第１側板に設けられ、前記操作部から前記第１辺にかけて延びる第１破断線と、前記外フラップに設けられ、前記第１破断線と連続し、前記外フラップの先端に向けて延びる第２破断線と、一対の前記第２側板のうちの少なくとも一方に設けられ、前記一対の第３辺のうち、一方から他方にかけて延びる第３破断線と、前記外フラップに設けられ、前記第１側板の前記第１辺側から前記外フラップの先端に向けて延び、前記第２破断線に沿った前記外フラップの破断時に、前記外フラップを折り曲げる外フラップ折曲線とを備える、包装箱を提供する。 According to a first aspect of the present invention, a first side plate, an outer flap that is connected to a pair of opposing first sides of the first side plate, and is bent with respect to the first side plate; A second side plate that is connected to a pair of second sides that intersect with the first side and is bent in the same direction as the outer flap with respect to the first side plate, and intersects the second side of the first side plate. An inner flap that is connected to the third side of the second side plate and is bent with respect to the second side plate so as to be located on the inner surface of the outer flap, and is provided on the first side plate, and the first side plate is An operating portion for performing a breaking operation; a first breaking line provided on the first side plate; extending from the operating portion to the first side; provided on the outer flap; continuous with the first breaking line; A second break line extending toward the front end of the outer flap and the pair of second side plates A third breaking line provided on at least one of the pair of third sides and extending from one to the other of the pair of third sides; provided on the outer flap; and on the outer flap from the first side of the first side plate. A packaging box is provided that includes an outer flap folding line that extends toward a tip and bends the outer flap when the outer flap breaks along the second breaking line.
　この包装箱によれば、第１破断線に沿って第１側板を破断し、第２破断線に沿って外フラップを破断し、第３破断線に沿って第２側板を破断する。これにより、第１側板を含む第３破断線よりも上側の第２側板を、第３破断線よりも下側の第２側板から分離できる。この開封状態では、包装箱の上側部分が取り除かれるため、包装箱内に収容した物品の取出作業性を向上できる。 According to this packaging box, the first side plate is broken along the first break line, the outer flap is broken along the second break line, and the second side plate is broken along the third break line. Thereby, the 2nd side plate above the 3rd fracture line containing the 1st side plate can be separated from the 2nd side plate below the 3rd fracture line. In this opened state, since the upper part of the packaging box is removed, the workability of taking out the articles stored in the packaging box can be improved.
　また、第２破断線に沿って外フラップを破断する際には、外フラップ折曲線に沿って外フラップが折れ曲がるため、破断のための操作力を第２破断線に集中させることができる。よって、外フラップの破断作業性を向上できる。 Further, when the outer flap is broken along the second breaking line, the outer flap is bent along the outer flap folding curve, so that the operation force for breaking can be concentrated on the second breaking line. Therefore, the workability of the outer flap can be improved.
　前記内フラップには、前記外フラップ折曲線に沿って延びる辺を有する切り欠きが設けられている。内フラップの基端から先端までの寸法が長く、外フラップ折曲線の背面側が内フラップで覆われる場合、外フラップ折曲線に沿った外フラップの折り曲げが困難になる。しかし、この態様によれば、内フラップに切り欠きが設けられているため、外フラップ折曲線に沿う辺をガイドとし、外フラップ折曲線に沿った外フラップの折り曲げを促進できる。よって、外フラップの破断作業性を効果的に向上できる。 The inner flap is provided with a notch having a side extending along the outer flap folding curve. When the dimension from the base end of the inner flap to the tip is long and the back side of the outer flap folding curve is covered with the inner flap, it is difficult to bend the outer flap along the outer flap folding curve. However, according to this aspect, since the notch is provided in the inner flap, the side along the outer flap folding curve can be used as a guide, and the bending of the outer flap along the outer flap folding curve can be promoted. Therefore, the workability of the outer flap can be effectively improved.
　又は、前記内フラップには、前記外フラップ折曲線に沿って延び、前記内フラップを折り曲げる内フラップ折曲線が設けられている。この態様によれば、内フラップ折曲線に沿って内フラップが折れ曲がるため、外フラップ折曲線に沿った外フラップの折り曲げを促進できる。よって、外フラップの破断作業性を効果的に向上できる。 Alternatively, the inner flap is provided with an inner flap folding curve that extends along the outer flap folding curve and bends the inner flap. According to this aspect, since the inner flap bends along the inner flap folding curve, the bending of the outer flap along the outer flap folding curve can be promoted. Therefore, the workability of the outer flap can be effectively improved.
　前記第２側板には、前記第３破断線から前記第１側板の前記第２辺に向けて延び、前記第３破断線に沿った前記第２側板の破断時に、前記第２側板を折り曲げる第２側板折曲線が設けられている。この態様によれば、第３破断線に沿って第２側板を破断する際に、第２側板折曲線に沿って第２側板が折れ曲がるため、破断のための操作力を第３破断線に集中させることができる。よって、第２側板の破断作業性を向上できる。 The second side plate extends from the third break line toward the second side of the first side plate, and bends the second side plate when the second side plate breaks along the third break line. A two-side plate folding curve is provided. According to this aspect, when the second side plate is broken along the third breaking line, the second side plate is bent along the second side plate folding curve, so that the operation force for breaking is concentrated on the third breaking line. Can be made. Therefore, the workability of breaking the second side plate can be improved.
　また、本発明の第２態様は、第１側板と、前記第１側板の対向する一対の第１辺に連設され、前記第１側板に対して折り曲げられた外フラップと、前記第１側板の前記第１辺と交差する一対の第２辺に連設され、前記第１側板に対して前記外フラップと同じ向きに折り曲げられた第２側板と、前記第１側板の前記第２辺と交差する前記第２側板の一対の第３辺に連設され、前記外フラップの内面に位置するように前記第２側板に対して折り曲げられた内フラップと、前記第１側板に設けられ、前記第１側板を破断操作するための操作部と、前記第１側板に設けられ、前記操作部から前記第１辺にかけて延びる第１破断線と、前記外フラップに設けられ、前記第１破断線と連続し、前記外フラップの先端に向けて延びる第２破断線と、一対の前記第２側板のうちの少なくとも一方に設けられ、前記第２側板の前記一対の第３辺のうち、一方から他方にかけて延びる第３破断線と、前記第２側板に設けられ、前記第３破断線から前記第１側板の前記第２辺に向けて延び、前記第３破断線に沿った前記第２側板の破断時に、前記第２側板を折り曲げる第２側板折曲線とを備える、包装箱を提供する。 According to a second aspect of the present invention, there is provided a first side plate, an outer flap that is connected to a pair of opposing first sides of the first side plate and is bent with respect to the first side plate, and the first side plate. A second side plate that is connected to a pair of second sides intersecting with the first side and is bent in the same direction as the outer flap with respect to the first side plate, and the second side of the first side plate, An inner flap that is connected to a pair of third sides of the intersecting second side plate and is bent with respect to the second side plate so as to be positioned on an inner surface of the outer flap; and provided on the first side plate, An operating portion for breaking the first side plate; a first breaking line provided on the first side plate extending from the operating portion to the first side; provided on the outer flap; and the first breaking line; A second break line that is continuous and extends toward the tip of the outer flap; A third break line provided on at least one of the second side plates and extending from one side to the other of the pair of third sides of the second side plate, and provided on the second side plate, the third break A packaging box comprising: a second side plate folding curve extending from the line toward the second side of the first side plate and bending the second side plate when the second side plate is broken along the third breaking line. provide.
　前記内フラップには、前記内フラップの先端側から前記第３破断線に連続するように延びる第４破断線が設けられている。この場合、前記内フラップの先端には、前記内フラップを前記第４破断線に沿って破断操作するための切欠部が形成されていることが好ましい。この態様によれば、第４破断線に沿った内フラップの破断作業性を向上できる。 The inner flap is provided with a fourth break line extending from the tip side of the inner flap so as to be continuous with the third break line. In this case, it is preferable that a notch for breaking the inner flap along the fourth breaking line is formed at the tip of the inner flap. According to this aspect, it is possible to improve the break workability of the inner flap along the fourth break line.
　本発明の包装箱では、各破断線に沿って、第１側板、外フラップ、及び第２側板を破断することで、包装箱の上側部分が取り除かれるため、包装箱内の物品の取出作業性を向上できる。また、外フラップの破断時には、外フラップ折曲線に沿って外フラップが折れ曲がるため、第２破断線に沿った破断作業性を向上できる。 In the packaging box of the present invention, the upper side portion of the packaging box is removed by breaking the first side plate, the outer flap, and the second side plate along each breaking line. Can be improved. Further, when the outer flap breaks, the outer flap is bent along the outer flap folding curve, so that the workability of breaking along the second breaking line can be improved.
本発明の第１実施形態に係る包装箱を示す斜視図。The perspective view which shows the packaging box which concerns on 1st Embodiment of this invention. 図１の包装箱の断面図。Sectional drawing of the packaging box of FIG. 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. 包装箱を構成する段ボールシートを示す断面図。Sectional drawing which shows the cardboard sheet | seat which comprises a packaging box. 段ボールシートに形成した汎用罫線を示す断面図。Sectional drawing which shows the general ruled line formed in the corrugated cardboard sheet. 段ボールシートに形成した切断線を示す断面図。Sectional drawing which shows the cutting line formed in the corrugated cardboard sheet. 段ボールシートに形成した逆罫線を示す断面図。Sectional drawing which shows the reverse ruled line formed in the cardboard sheet | seat. 包装箱の開封作業の一工程を示す斜視図。The perspective view which shows 1 process of the opening operation | work of a packaging box. 包装箱の開封状態を示す斜視図。The perspective view which shows the opening state of a packaging box. 包装箱の他の開封状態を示す斜視図。The perspective view which shows the other opening state of a packaging box. 包装箱の他の開封状態を示す斜視図。The perspective view which shows the other opening state of a packaging box. 第２実施形態に係る包装箱を示す斜視図。The perspective view which shows the packaging box which concerns on 2nd Embodiment. 図９の包装箱の断面図。Sectional drawing of the packaging box of FIG. 図９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. 第３実施形態に係る包装箱を示す斜視図。The perspective view which shows the packaging box which concerns on 3rd Embodiment. 図１２の包装箱の断面図。Sectional drawing of the packaging box of FIG. 図１２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. 第４実施形態に係る包装箱を示す斜視図。The perspective view which shows the packaging box which concerns on 4th Embodiment. 図１５の包装箱の断面図。Sectional drawing of the packaging box of FIG. 図１５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. 第５実施形態に係る包装箱を示す上方斜視図。The upper perspective view which shows the packaging box which concerns on 5th Embodiment. 第５実施形態に係る包装箱を示す下方斜視図。The lower perspective view which shows the packaging box which concerns on 5th Embodiment. 図１８の包装箱の断面図。Sectional drawing of the packaging box of FIG. 図１８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. 変形例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 a modification. 他の変形例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 another modification. 他の変形例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 another modification. 他の変形例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 another modification. 他の変形例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 another modification. 他の変形例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 another modification. 他の変形例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 another modification. 他の変形例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 another modification. 他の変形例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 another modification. 他の変形例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 another modification. 他の変形例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 another modification. 他の変形例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 another modification. 他の変形例の包装箱の断面図。Sectional drawing of the packaging box of another modification.
　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８は、本発明の第１実施形態に係る包装箱１０を示す。図１及び図２に示すように、包装箱１０は、四角筒状の外周壁１２と、外周壁１２の両端の開口を塞ぐ蓋壁２０，２０とを備えるラップアラウンドケースである。本発明では、外周壁１２に破断線３５，４５を設けるとともに、蓋壁２０に破断線４０，５０を設け、物品の取出作業性が良好な状態に開封可能とする。 (First embodiment)
1 to 8 show a packaging box 10 according to a first embodiment of the present invention. As shown in FIGS. 1 and 2, the packaging box 10 is a wrap-around case including a square cylindrical outer peripheral wall 12 and lid walls 20 and 20 that close openings at both ends of the outer peripheral wall 12. In the present invention, the break lines 35 and 45 are provided on the outer peripheral wall 12 and the break lines 40 and 50 are provided on the lid wall 20 so that the article can be opened in a good state.
（包装箱の概要）
　包装箱１０は、図３に示す一枚のブランク１０’の所定部位を折り曲げて糊付けすることで形成されている。ブランク１０’は、周知の紙器打抜装置によって紙製の段ボールシート１を打ち抜いて形成されている。図４Ａに示すように、段ボールシート１は、表ライナ２と裏ライナ３の間に波状の中しん４を配設した構成である。図３中の一点鎖線は、図４Ｂに示すように、肉厚を圧縮するように裏ライナ３の方から罫を入れて形成した汎用罫線である。図３中の実線は、図４Ｃに示すように、裏ライナ３から表ライナ２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（縁）である。なお、図４Ｄは、肉厚を圧縮するように表ライナ２の方から罫を入れて形成した逆罫線を示す。この逆罫線は後述する図３３に示す変形例の包装箱のブランク１０’に用いられており、図３３に二点鎖線で記載されている。 (Outline of the packaging box)
The packaging box 10 is formed by bending and pasting a predetermined portion of one blank 10 ′ shown in FIG. The blank 10 'is formed by punching the paper cardboard sheet 1 with a known paper container punching device. As shown in FIG. 4A, the corrugated cardboard sheet 1 has a configuration in which a corrugated shin 4 is disposed between the front liner 2 and the back liner 3. A one-dot chain line in FIG. 3 is a general ruled line formed by putting a rule from the back liner 3 so as to compress the thickness as shown in FIG. 4B. The solid line in FIG. 3 is a cutting line formed by inserting a blade from the back liner 3 to the front liner 2 and a shape line (edge) by punching, as shown in FIG. 4C. FIG. 4D shows a reverse ruled line formed by putting a rule from the front liner 2 so as to compress the wall thickness. This reverse ruled line is used in a blank 10 ′ of a packaging box of a modified example shown in FIG. 33, which will be described later, and is indicated by a two-dot chain line in FIG.
　図１及び図２に示すように、外周壁１２は、底板１３、天板（第１側板）１４、及び一対の側板（第２側板）１５Ａ，１５Ｂを備える。そのうち、底板１３と天板１４は、Ｘ（幅）方向の寸法がＹ（奥行き）方向の寸法よりも短い長方形状であり、互いに対向して平行に配置されている。側板１５Ａ，１５Ｂは、Ｙ方向の寸法がＺ（高さ）方向の寸法よりも長い長方形状であり、互いに対向して平行に配置されている。底板１３及び天板１４と側板１５Ａ，１５Ｂとは、Ｙ方向の寸法が同一であり、互いに直交方向に延びるように折り曲げられている。底板１３及び天板１４のＸ方向の寸法は、側板１５Ａ，１５ＢのＺ方向の寸法よりも長い。 1 and 2, the outer peripheral wall 12 includes a bottom plate 13, a top plate (first side plate) 14, and a pair of side plates (second side plates) 15A and 15B. Among them, the bottom plate 13 and the top plate 14 have a rectangular shape in which the dimension in the X (width) direction is shorter than the dimension in the Y (depth) direction, and is arranged in parallel to face each other. The side plates 15A and 15B have a rectangular shape in which the dimension in the Y direction is longer than the dimension in the Z (height) direction, and are arranged in parallel to face each other. The bottom plate 13 and the top plate 14 and the side plates 15A and 15B have the same dimension in the Y direction and are bent so as to extend in the orthogonal direction. The dimension in the X direction of the bottom plate 13 and the top plate 14 is longer than the dimension in the Z direction of the side plates 15A and 15B.
　図３を参照すると、側板１５Ｂ、底板１３、側板１５Ａ、及び天板１４は、この順で左側から右側に向けて、折曲線１７を介して連設されている。左端に位置する側板１５Ｂには、折曲線１７を介して貼着板１６が連設されている。貼着板１６は、図３において右端に位置する天板１４の内面（裏ライナ３側）に、熱溶融樹脂等の接着剤を用いて貼着（ホットメルト）されている。折曲線１７は、汎用罫線からなり、図１及び図２の組立状態ではＹ方向に延びている。 Referring to FIG. 3, the side plate 15B, the bottom plate 13, the side plate 15A, and the top plate 14 are connected in series through a folding line 17 from the left side to the right side. A sticking plate 16 is connected to the side plate 15B located at the left end via a folding line 17. The sticking plate 16 is stuck (hot melted) to the inner surface (back liner 3 side) of the top plate 14 located at the right end in FIG. 3 using an adhesive such as a hot melt resin. The folding line 17 is formed of a general ruled line, and extends in the Y direction in the assembled state of FIGS.
　引き続いて図１及び図２を参照すると、蓋壁２０，２０は、Ｚ方向の寸法がＸ方向の寸法よりも短い長方形状であり、互いに対向して平行に配置されている。蓋壁２０のＸ方向の寸法は、底板１３及び天板１４のＸ方向の寸法と同一であり、蓋壁２０のＺ方向の寸法は、側板１５Ａ，１５ＢのＺ方向の寸法と同一である。蓋壁２０は、底板１３の端に連設された外フラップ２１と、天板１４の端に連設された外フラップ２２と、側板１５Ａ，１５Ｂの端に連設された内フラップ２３，２３とで構成されている。 1 and 2, the lid walls 20 and 20 have a rectangular shape in which the dimension in the Z direction is shorter than the dimension in the X direction, and are arranged in parallel to face each other. The dimension of the lid wall 20 in the X direction is the same as the dimension of the bottom plate 13 and the top plate 14 in the X direction, and the dimension of the lid wall 20 in the Z direction is the same as the dimensions of the side plates 15A and 15B in the Z direction. The lid wall 20 includes an outer flap 21 connected to the end of the bottom plate 13, an outer flap 22 connected to the end of the top plate 14, and inner flaps 23, 23 connected to the ends of the side plates 15A and 15B. It consists of and.
　外フラップ２１，２２は、底板１３及び天板１４に対して、Ｘ方向に延びる汎用罫線からなる折曲線２４を介して連設されている。外フラップ２１は、底板１３に対して側板１５Ａ，１５Ｂと同じ上向きに折り曲げられ、外フラップ２２は、天板１４に対して側板１５Ａ，１５Ｂと同じ下向きに折り曲げられている。外フラップ２１，２２は、Ｘ方向の寸法がＺ方向の寸法よりも長い長方形状である。折曲線（基端）２４から先端までの外フラップ２１，２２の突出寸法（Ｚ方向の寸法）は、互いの先端が突き合う長さ（側板１５Ａ，１５ＢのＺ方向の寸法の半分）に設定されている。 The outer flaps 21 and 22 are connected to the bottom plate 13 and the top plate 14 via a folding line 24 formed of a general ruled line extending in the X direction. The outer flap 21 is bent in the same upward direction as the side plates 15A and 15B with respect to the bottom plate 13, and the outer flap 22 is bent in the same downward direction as the side plates 15A and 15B with respect to the top plate 14. The outer flaps 21 and 22 have a rectangular shape in which the dimension in the X direction is longer than the dimension in the Z direction. The projecting dimension (Z-direction dimension) of the outer flaps 21 and 22 from the folding curve (base end) 24 to the distal end is set to a length (half the dimension of the side plates 15A and 15B in the Z-direction) where the distal ends abut each other. Has been.
　内フラップ２３は、側板１５Ａ，１５Ｂに対して、Ｚ方向に延びる汎用罫線からなる折曲線２５を介して連設されている。内フラップ２３，２３は、外フラップ２１，２２の内面（裏ライナ３側）に位置するように、側板１５Ａ，１５Ｂに対して折り曲げられている。全ての内フラップ２３は、Ｘ方向の寸法がＺ方向の寸法よりも短い長方形状である。折曲線２５から先端までの内フラップ２３の突出寸法は、図３に示すブランク１０’の状態で、内フラップ２３の先端と外フラップ２１，２２の先端とが直線上に位置する長さに設定されている。 The inner flap 23 is connected to the side plates 15A and 15B via a folding line 25 made of a general ruled line extending in the Z direction. The inner flaps 23, 23 are bent with respect to the side plates 15 </ b> A, 15 </ b> B so as to be positioned on the inner surfaces (the back liner 3 side) of the outer flaps 21, 22. All the inner flaps 23 have a rectangular shape in which the dimension in the X direction is shorter than the dimension in the Z direction. The projecting dimension of the inner flap 23 from the folding line 25 to the tip is set to a length in which the tip of the inner flap 23 and the tips of the outer flaps 21 and 22 are positioned on a straight line in the state of the blank 10 'shown in FIG. Has been.
　外フラップ２２が連続し、折曲線２４，２４が形成されている天板１４の端は、天板（第１側板）１４の対向する一対の第１辺である。側板１５Ａ，１５Ｂが連続し、折曲線１７，１７が形成されている天板１４の端は、天板（第１側板）１４の一対の第２辺である。内フラップ２３，２３が連続し、折曲線２５，２５が形成されている側板１５Ａ，１５Ｂの端は、側板（第２側板）１５Ａ，１５Ｂの一対の第３辺である。折曲線（第２辺）１７は、折曲線（第１辺）２４に対して直交する方向に延びており、折曲線（第３辺）２５は、折曲線（第１辺）２４及び折曲線（第２辺）１７に対して直交する方向に延びている。 The end of the top plate 14 where the outer flap 22 is continuous and the folding lines 24 and 24 are formed is a pair of first sides facing the top plate (first side plate) 14. The ends of the top plate 14 where the side plates 15A and 15B are continuous and the folding lines 17 and 17 are formed are a pair of second sides of the top plate (first side plate) 14. The ends of the side plates 15A and 15B where the inner flaps 23 and 23 are continuous and the folding lines 25 and 25 are formed are a pair of third sides of the side plates (second side plates) 15A and 15B. The folding line (second side) 17 extends in a direction orthogonal to the folding line (first side) 24, and the folding line (third side) 25 includes the folding line (first side) 24 and the folding line. It extends in a direction perpendicular to the (second side) 17.
　例えば包装箱１０は、次のように封緘される。まず、図３のブランク１０’の状態で、底板１３の上面（裏ライナ３側）に収容する物品を配置する。ついで、底板１３に対して側板１５Ａ，１５Ｂを折り曲げる。その後、側板１５Ｂに対して貼着板１６を折り曲げるとともに、側板１５Ａに対して天板１４を折り曲げ、貼着板１６と天板１４とをホットメルトによって貼着する。 For example, the packaging box 10 is sealed as follows. First, in the state of the blank 10 ′ in FIG. 3, an article to be accommodated on the upper surface (back liner 3 side) of the bottom plate 13 is arranged. Next, the side plates 15 </ b> A and 15 </ b> B are bent with respect to the bottom plate 13. Thereafter, the sticking plate 16 is bent with respect to the side plate 15B, the top plate 14 is bent with respect to the side plate 15A, and the sticking plate 16 and the top plate 14 are attached by hot melt.
　次に、側板１５Ａ，１５Ｂに対して内フラップ２３，２３を折り曲げる。ついで、底板１３に対して外フラップ２１を折り曲げるとともに、天板１４に対して外フラップ２２を折り曲げる。そして、内フラップ２３，２３と外フラップ２１，２２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、蓋壁２０が形成され、外周壁１２の両端の開口が封緘される。図１及び図３には、外フラップ２２と内フラップ２３を貼着するホットメルト（貼着部）７０が破線で示されている。 Next, the inner flaps 23 and 23 are bent with respect to the side plates 15A and 15B. Next, the outer flap 21 is bent with respect to the bottom plate 13 and the outer flap 22 is bent with respect to the top plate 14. And the overlapping part of the inner flaps 23 and 23 and the outer flaps 21 and 22 is stuck by hot melt. Thereby, the cover wall 20 is formed and the opening of both ends of the outer peripheral wall 12 is sealed. 1 and 3, a hot melt (sticking portion) 70 for sticking the outer flap 22 and the inner flap 23 is indicated by a broken line.
（包装箱の開封構造）
　包装箱１０は、図６に示す第１開封状態、図７に示す第２開封状態、及び図８に示す第３開封状態のいずれかに、選択的に開封できるように構成されている。これらの状態に開封するために、図１及び図２に示すように、包装箱１０には、開封操作用の操作部３０、第１破断線３５、第２破断線４０、第３破断線４５、及び第４破断線５０が設けられている。 (Opening structure of the packaging box)
The packaging box 10 is configured to be selectively opened in any of the first opened state shown in FIG. 6, the second opened state shown in FIG. 7, and the third opened state shown in FIG. In order to open in these states, as shown in FIGS. 1 and 2, the packaging box 10 includes an operation unit 30 for opening operation, a first break line 35, a second break line 40, and a third break line 45. , And a fourth break line 50 is provided.
　図１及び図３に示すように、操作部３０は、天板１４の中央に形成されている。この操作部３０は、折曲線３１、一対の第１破断部３２、及び第２破断部３３を備える。折曲線３１は、汎用罫線からなり、折曲線１７と平行に位置ようにＹ方向へ延びている。第１破断部３２は、折曲線３１の両端に設けられている。個々の第１破断部３２は、ミシン目状をなすように所定間隔をあけて設けた複数の切断線からなり、折曲線３１の端から外フラップ２２に向けてＹ方向にそれぞれ延びている。第２破断部３３は、ミシン目状をなすように所定間隔をあけて設けた複数の切断線によって構成されている。第２破断部３３は、折曲線３１と第１破断部３２に沿って延びるように、一対の第１破断部３２，３２のうちの一方の外端から他方の外端にかけて円弧状に形成されている。 As shown in FIGS. 1 and 3, the operation unit 30 is formed at the center of the top plate 14. The operation unit 30 includes a folding line 31, a pair of first breaking parts 32, and a second breaking part 33. The folding line 31 is formed of general-purpose ruled lines, and extends in the Y direction so as to be parallel to the folding line 17. The first breaking portion 32 is provided at both ends of the folding line 31. Each of the first breakage portions 32 includes a plurality of cutting lines provided at predetermined intervals so as to form a perforation, and extends in the Y direction from the end of the folding line 31 toward the outer flap 22. The 2nd fracture | rupture part 33 is comprised by the some cutting line provided at predetermined intervals so that the perforated shape might be made. The second break portion 33 is formed in an arc shape from one outer end of the pair of first break portions 32, 32 to the other outer end so as to extend along the folding line 31 and the first break portion 32. ing.
　第１破断線３５は、天板１４の操作部３０の両側に設けられている。個々の第１破断線３５は、操作部３０のＹ方向の端から、天板１４と外フラップ２２の間の折曲線２４にかけてＹ方向へ延びている。第１破断線３５は、Ｙ字形状に形成された複数の切断線からなり、これらの切断線をＹ方向へ所定間隔をあけて設けたものである。切断線は、二又に分岐した方が操作部３０側に位置する姿勢で設けられている。 The first break line 35 is provided on both sides of the operation unit 30 of the top plate 14. Each first break line 35 extends in the Y direction from the end in the Y direction of the operation unit 30 to the folding line 24 between the top plate 14 and the outer flap 22. The first breaking line 35 is composed of a plurality of cutting lines formed in a Y shape, and these cutting lines are provided at predetermined intervals in the Y direction. The cutting line is provided in such a posture that the bifurcated branch is positioned on the operation unit 30 side.
　第２破断線４０は、外フラップ２２に設けられている。この第２破断線４０は、第１破断線３５と連続するように、折曲線２４から外フラップ２２の先端に向けて延びている。また、第２破断線４０は、側板１５Ａの方へ湾曲又は傾斜するように形成されている。第２破断線４０の曲率又は傾斜角は、ホットメルト７０における外フラップ２２の先端側を通る大きさに設定されている。第２破断線４０は、直線状の第１切断線と、Ｙ字形状の第２切断線とで構成されている。第２切断線は、二又に分岐した方が天板１４側に位置する姿勢で設けられている。 The second break line 40 is provided on the outer flap 22. The second break line 40 extends from the folding line 24 toward the tip of the outer flap 22 so as to be continuous with the first break line 35. The second break line 40 is formed so as to bend or incline toward the side plate 15A. The curvature or inclination angle of the second break line 40 is set to a size that passes through the front end side of the outer flap 22 in the hot melt 70. The 2nd fracture | rupture line 40 is comprised by the linear 1st cutting line and the Y-shaped 2nd cutting line. The second cutting line is provided in such a posture that the bifurcated branch is located on the top plate 14 side.
　第１破断線３５の端と第２破断線４０の端とは、折曲線２４上の同一点に位置する形態としてもよいし、所定間隔をあけて位置する形態としてもよい。つまり、第１破断線３５と連続するように設ける第２破断線４０とは、第１破断線３５に沿った天板１４の破断に引き続いて、第２破断線４０に沿って外フラップ２２を破断することが可能な形態を意味し、第１破断線３５と第２破断線４０は、厳密に連続していてもよいし、実質的に連続していてもよい。 The end of the first break line 35 and the end of the second break line 40 may be positioned at the same point on the folding line 24, or may be positioned at a predetermined interval. That is, the second break line 40 provided so as to be continuous with the first break line 35 means that the outer flap 22 is formed along the second break line 40 following the break of the top plate 14 along the first break line 35. It means a form that can be broken, and the first break line 35 and the second break line 40 may be strictly continuous or may be substantially continuous.
　第３破断線４５は、側板１５Ａ，１５Ｂにそれぞれ設けられている。この第３破断線４５は、側板１５Ａ，１５Ｂの両端の折曲線２５，２５のうち、一方から他方にかけてＹ方向に延びている。第３破断線４５は、第１破断部４６、及び第２破断部４７によって構成されている。 The third break line 45 is provided on each of the side plates 15A and 15B. The third breaking line 45 extends in the Y direction from one to the other among the folding lines 25, 25 at both ends of the side plates 15A, 15B. The third break line 45 includes a first break portion 46 and a second break portion 47.
　第１破断部４６は、Ｙ方向の外側から内側に向けて下向きに傾斜する２本の切断線によって構成されている。第１破断部４６のＹ方向の外側端は、折曲線２５のＺ方向の中央に位置されている。 The 1st fracture | rupture part 46 is comprised by the two cutting lines which incline downward toward the inner side from the outer side of a Y direction. The outer end in the Y direction of the first fracture portion 46 is located at the center of the folding line 25 in the Z direction.
　第２破断部４７は、Ｙ方向に所定間隔をあけて形成した複数の直線状の切断線によって構成されている。第２破断部４７のＹ方向の端は、一対の第１破断部４６，４６のＹ方向の内側端と間隔をあけて配置されている。本実施形態の第２破断部４７は、Ｙ方向の全長が異なる２種の直線状の切断線によって構成されている。 The 2nd fracture | rupture part 47 is comprised by the several linear cutting line formed at predetermined intervals in the Y direction. The end in the Y direction of the second breakage portion 47 is disposed at a distance from the inner end in the Y direction of the pair of first breakage portions 46, 46. The 2nd fracture | rupture part 47 of this embodiment is comprised by 2 types of linear cutting lines from which the full length of a Y direction differs.
　図２に示すように、第４破断線５０は、４枚の内フラップ２３にそれぞれ設けられている。第４破断線５０は、第３破断線４５に連続するように、内フラップ２３の先端から折曲線２５にかけてＸ方向に延びている。第３破断線４５の端と第４破断線５０の端とは、折曲線２５上の同一点に位置する形態としてもよいし、所定間隔をあけて位置する形態としてもよい。つまり、第３破断線４５と連続するように設ける第４破断線５０とは、第４破断線５０に沿った内フラップ２３の破断に引き続いて、第３破断線４５に沿って側板１５Ａ，１５Ｂを破断することが可能な形態を意味し、第３破断線４５と第４破断線５０は、厳密に連続していてもよいし、実質的に連続していてもよい。本実施形態の第４破断線５０は、第１破断部５１、及び第２破断部５２によって構成されており、全体として概ねＶ字形状に形成されている。 As shown in FIG. 2, the fourth break line 50 is provided on each of the four inner flaps 23. The fourth break line 50 extends in the X direction from the tip of the inner flap 23 to the folding line 25 so as to be continuous with the third break line 45. The end of the third break line 45 and the end of the fourth break line 50 may be positioned at the same point on the folding line 25, or may be positioned at a predetermined interval. That is, the fourth break line 50 provided so as to be continuous with the third break line 45 is the side plates 15A and 15B along the third break line 45 following the break of the inner flap 23 along the fourth break line 50. The third break line 45 and the fourth break line 50 may be strictly continuous or may be substantially continuous. The 4th broken line 50 of this embodiment is comprised by the 1st fracture | rupture part 51 and the 2nd fracture | rupture part 52, and is formed in the substantially V shape as a whole.
　第１破断部５１は、内フラップ２３のＸ方向の内側（先端）から外側（基端）に向けて下向きに傾斜する第１切断線と第２切断線とで構成されている。第１切断線は、直線状であり、内フラップ２３の先端のＺ方向の中央からＸ方向に延びている。第２切断線は、下向きに湾曲した曲線状であり、所定間隔をあけて３本設けられている。 The first fracture portion 51 is composed of a first cutting line and a second cutting line that are inclined downward from the inner side (front end) in the X direction of the inner flap 23 toward the outer side (base end). The first cutting line is linear and extends in the X direction from the center in the Z direction at the tip of the inner flap 23. The second cutting line has a curved shape curved downward, and three lines are provided at predetermined intervals.
　第２破断部５２は、第１破断部５１のＸ方向の外端から、第２破断部４７と折曲線２５の交点に向けて、上向きに傾斜する第１切断線と第２切断線とで構成されている。第１切断線は、直線状であり、第１破断部５１のＸ方向の外端からＸ方向に延びている。第２切断線は、下向きに湾曲した曲線状であり、第１破断部５１と折曲線２５の間に設けられている。 The second break portion 52 includes a first cut line and a second cut line that are inclined upward from the outer end in the X direction of the first break portion 51 toward the intersection of the second break portion 47 and the folding line 25. It is configured. The first cutting line is straight and extends in the X direction from the outer end of the first breakage portion 51 in the X direction. The second cutting line has a curved shape curved downward, and is provided between the first fracture portion 51 and the folding line 25.
　包装箱１０を開封する場合、まず、図１に示す折曲線３１、第１破断部３２、及び第２破断部３３で囲まれた操作部３０の内部を外方から押す。これにより、第１破断部３２と第２破断部３３に沿って天板１４を破断し、操作部３０を開口させる。 When opening the packaging box 10, first, the inside of the operation unit 30 surrounded by the folding line 31, the first breaking part 32, and the second breaking part 33 shown in FIG. 1 is pushed from the outside. Thereby, the top plate 14 is broken along the first breakage portion 32 and the second breakage portion 33, and the operation portion 30 is opened.
　ついで、図５に示すように、操作部３０の開口部分から包装箱１０内に手を差し込み、外フラップ２２の第２破断線４０が延びる方、つまり天板１４の側板１５Ａ側を把持して引き上げる。これにより、第１破断線３５に沿って天板１４を破断する。 Next, as shown in FIG. 5, a hand is inserted into the packaging box 10 from the opening of the operation unit 30, and the side where the second break line 40 of the outer flap 22 extends, that is, the side plate 15 </ b> A side of the top plate 14 is gripped. Pull up. Thereby, the top plate 14 is broken along the first break line 35.
　天板１４の破断が完了した後、操作部３０を把持した開封操作を続けて行うことで、第２破断線４０に沿って一対の外フラップ２２，２２を破断する。また、外フラップ２２，２２に貼着された内フラップ２３，２３を、第４破断線５０，５０に沿って破断する。さらに、第３破断線４５の第１破断部４６に沿って側板１５Ａを破断し、第２破断部４７に沿って側板１５Ａを谷折りする。 After the top plate 14 is completely broken, the pair of outer flaps 22 and 22 are broken along the second break line 40 by continuously performing the opening operation that holds the operation unit 30. Further, the inner flaps 23, 23 attached to the outer flaps 22, 22 are broken along the fourth break lines 50, 50. Further, the side plate 15 </ b> A is broken along the first break portion 46 of the third break line 45, and the side plate 15 </ b> A is valley-folded along the second break portion 47.
　次に、図６に示すように、天板１４の側板１５Ｂ側を把持して引き上げる。これにより、側板１５Ｂに連続する内フラップ２３，２３を、第４破断線５０，５０に沿って破断する。また、第３破断線４５の第１破断部４６に沿って側板１５Ｂを破断し、第２破断部４７に沿って側板１５Ｂを谷折りする。 Next, as shown in FIG. 6, the side plate 15B side of the top plate 14 is gripped and pulled up. As a result, the inner flaps 23, 23 continuing to the side plate 15 </ b> B are broken along the fourth break lines 50, 50. Further, the side plate 15B is broken along the first broken portion 46 of the third broken line 45, and the side plate 15B is valley-folded along the second broken portion 47.
　これにより、包装箱１０を左右両側に開いた第１開封状態とすることができる。この第１開封状態では、第３破断線４５の第２破断部４７をヒンジとして天板１４側を開閉できる。よって、包装箱１０内の物品の一部だけを取り出し、残りの物品を包装箱１０から取り出さない場合に、再封緘することができるため、好適である。 This allows the packaging box 10 to be in a first opened state where it is opened on both the left and right sides. In the first opened state, the top plate 14 side can be opened and closed with the second broken portion 47 of the third broken line 45 as a hinge. Therefore, when only a part of the articles in the packaging box 10 is taken out and the remaining articles are not taken out from the packaging box 10, it can be resealed, which is preferable.
　図６に示す第１開封状態から第３破断線４５の第２破断部４７に沿って側板１５Ａ，１５Ｂを破断することで、図７に示すように、天板１４側を切り離し、包装箱１０を第２開封状態とすることができる。この第２開封状態では、天板１４を含む第３破断線４５よりも上側の側板１５Ａ，１５Ｂの一部が、底板１３を含む第３破断線４５よりも下側の側板１５Ａ，１５Ｂの残りから分離される。つまり、上側部分を取り除くことで、包装箱１０をトレー状にすることができるため、包装箱１０内に収容した物品の取出作業性を向上できる。 By breaking the side plates 15A and 15B along the second breaking portion 47 of the third breaking line 45 from the first opened state shown in FIG. 6, the top plate 14 side is separated as shown in FIG. Can be in the second opened state. In the second opened state, a part of the side plates 15A, 15B above the third break line 45 including the top plate 14 is part of the remaining side plates 15A, 15B below the third break line 45 including the bottom plate 13. Separated from. That is, by removing the upper portion, the packaging box 10 can be made into a tray shape, so that the workability of taking out articles stored in the packaging box 10 can be improved.
　図８に示すように、天板１４の一部を含む側板１５Ｂ側は取り除くことなく、天板１４の一部を含む側板１５Ａ側だけを取り除くことで、包装箱１０を第３開封状態とすることもできる。この第３開封状態では、側板１５Ｂ側の天板１４の一部が残っているため、その上に他の包装箱１０を積み重ねることができる。よって、店頭等で陳列販売する際に好適である。 As shown in FIG. 8, the packaging box 10 is brought into the third opened state by removing only the side plate 15 </ b> A side including a part of the top plate 14 without removing the side plate 15 </ b> B side including a part of the top plate 14. You can also. In the third opened state, a part of the top plate 14 on the side plate 15B side remains, so that another packaging box 10 can be stacked thereon. Therefore, it is suitable when selling at a store or the like.
（包装箱の開封補助構造）
　破断線４０，４５に沿って包装箱１０を破断するには、大きな操作力が必要である。そこで、図１に示すように、包装箱１０には、破断線４０，４５に沿った破断作業性を向上するために、外フラップ折曲線６０、及び側板折曲線（第２側板折曲線）６５が設けられている。 (Packing box opening assist structure)
In order to break the packaging box 10 along the breaking lines 40 and 45, a large operating force is required. Therefore, as shown in FIG. 1, the packaging box 10 has an outer flap folding curve 60 and a side plate folding curve (second side folding curve) 65 in order to improve the breaking workability along the breaking lines 40 and 45. Is provided.
　外フラップ折曲線６０は、外フラップ２２に設けられている。この外フラップ折曲線６０は、第２破断線４０に沿った外フラップ２２の破断時に、外フラップ２２を折り曲げることで、開封操作力を第２破断線４０に集中させるものである。外フラップ折曲線６０は、汎用罫線からなり、折曲線２４から外フラップ２２の先端に向けて傾斜して延びている。 The outer flap folding line 60 is provided on the outer flap 22. The outer flap folding line 60 concentrates the opening operation force on the second breaking line 40 by folding the outer flap 22 when the outer flap 22 breaks along the second breaking line 40. The outer flap folding line 60 is formed of a general ruled line, and extends from the folding line 24 in an inclined manner toward the tip of the outer flap 22.
　詳しくは、外フラップ折曲線６０は、折曲線２４と折曲線２５の交点から、第２破断線４０の先端に向けて延びている。外フラップ折曲線６０の傾斜角は、ホットメルト７０に交差することなく、ホットメルト７０と折曲線２４の間を通る大きさに設定されている。折曲線２４側に位置する外フラップ折曲線６０の一端と、折曲線２４と折曲線２５の交点とは、定められた間隔をあけて位置している。外フラップ２２の先端側に位置する外フラップ折曲線６０の他端と、第２破断線４０の先端とは、定められた間隔をあけて位置している。 Specifically, the outer flap fold curve 60 extends from the intersection of the fold curve 24 and the fold curve 25 toward the tip of the second break line 40. The inclination angle of the outer flap folding line 60 is set to a size that passes between the hot melt 70 and the folding line 24 without intersecting the hot melt 70. One end of the outer flap folding line 60 located on the folding line 24 side and the intersection of the folding line 24 and the folding line 25 are located at a predetermined interval. The other end of the outer flap folding line 60 located on the front end side of the outer flap 22 and the front end of the second break line 40 are located at a predetermined interval.
　前述のように、天板１４の破断後、引き続いて第２破断線４０に沿って外フラップ２２を破断する場合、開封操作の向きは、外フラップ２２が延びる方向と同じＺＸ平面上に沿う。つまり、外フラップ折曲線６０が設けられてない場合、外フラップ２２を第２破断線４０に沿って引き裂くことになるため、破断作業が困難である。 As described above, when the outer flap 22 is subsequently broken along the second breaking line 40 after the top plate 14 is broken, the direction of the opening operation is on the same ZX plane as the direction in which the outer flap 22 extends. That is, when the outer flap folding line 60 is not provided, the outer flap 22 is torn along the second breaking line 40, so that the breaking operation is difficult.
　これに対して、本実施形態では、第２破断線４０に沿った外フラップ２２の破断時には、外フラップ２２が外フラップ折曲線６０に沿って山折れする。よって、外フラップ２２には、第２破断線４０に沿ってせん断力が作用するため、第２破断線４０に沿った外フラップ２２の破断作業性を向上できる。 In contrast, in the present embodiment, when the outer flap 22 breaks along the second break line 40, the outer flap 22 folds along the outer flap folding curve 60. Therefore, since a shearing force acts on the outer flap 22 along the second break line 40, the workability of the outer flap 22 along the second break line 40 can be improved.
　また、外フラップ折曲線６０は、第４破断線５０に沿った内フラップ２３の破断を促進する機能も兼ね備えている。詳しくは、外フラップ折曲線６０に沿って外フラップ２２が折れ曲がることで、ホットメルト７０を介して内フラップ２３に操作力が伝わり、内フラップ２３がＺ方向上向きに引っ張られる。これにより、第４破断線５０には引っ張り力が作用するため、第４破断線５０に沿った内フラップ２３の破断作業性を向上できる。 Further, the outer flap folding curve 60 also has a function of promoting the breaking of the inner flap 23 along the fourth breaking line 50. Specifically, when the outer flap 22 is bent along the outer flap folding curve 60, the operating force is transmitted to the inner flap 23 via the hot melt 70, and the inner flap 23 is pulled upward in the Z direction. Thereby, since a pulling force acts on the fourth break line 50, the break workability of the inner flap 23 along the fourth break line 50 can be improved.
　側板折曲線６５は、側板１５Ａ，１５Ｂの両側にそれぞれ設けられている。この側板折曲線６５は、第３破断線４５に沿った側板１５Ａ，１５Ｂの破断時に、側板１５Ａ，１５Ｂを折り曲げることで、開封操作力を第３破断線４５に集中させるものである。側板折曲線６５は、汎用罫線からなり、第３破断線４５から天板１４と側板１５Ａ，１５Ｂの境界の折曲線１７に向けて傾斜して延びている。 Side plate folding curves 65 are provided on both sides of the side plates 15A and 15B, respectively. The side plate folding curve 65 concentrates the opening operation force on the third breaking line 45 by bending the side plates 15A and 15B when the side plates 15A and 15B break along the third breaking line 45. The side plate folding curve 65 consists of a general ruled line, and it inclines and extends from the 3rd broken line 45 toward the folding curve 17 of the boundary of the top plate 14 and side plate 15A, 15B.
　詳しくは、一対の側板折曲線６５は、第３破断線４５の第１破断部４６のＹ方向中央から折曲線１７に向けて、次第に近づく向きに傾斜している。第１破断部４６側に位置する側板折曲線６５の一端は、第１破断部４６に対して定められた間隔をあけて位置している。折曲線１７側に位置する側板折曲線６５の他端は、折曲線１７に対して定められた間隔をあけて位置している。 Specifically, the pair of side plate folding curves 65 are inclined toward the folding curve 17 from the center in the Y direction of the first fracture portion 46 of the third fracture line 45 in a direction approaching gradually. One end of the side plate folding curve 65 located on the first breakage portion 46 side is located at a predetermined interval with respect to the first breakage portion 46. The other end of the side plate folding curve 65 located on the folding curve 17 side is located at a predetermined interval with respect to the folding curve 17.
　前述のように、内フラップ２３の破断後、引き続いて第３破断線４５に沿って側板１５Ａ，１５Ｂを破断する場合、開封操作は、側板１５Ａ，１５Ｂの上側部分を第３破断線４５を支点として回転させる向きになる。つまり、側板折曲線６５が設けられていない場合、側板１５Ａ，１５Ｂの表ライナ２には開封操作による力が殆ど作用しないため、破断作業が困難である。 As described above, when the side plates 15A and 15B are subsequently broken along the third fracture line 45 after the inner flap 23 is broken, the opening operation is performed by using the third fracture line 45 as a fulcrum for the upper portion of the side plates 15A and 15B. It becomes the direction to rotate as. That is, when the side plate folding curve 65 is not provided, the force due to the opening operation hardly acts on the front liner 2 of the side plates 15A and 15B, so that the breaking operation is difficult.
　これに対して、本実施形態では、第３破断線４５に沿った側板１５Ａ，１５Ｂの破断時には、側板１５Ａ，１５Ｂが側板折曲線６５に沿って山折れする。よって、側板１５Ａ，１５Ｂの表ライナ２にはＸ方向外向きのせん断力が作用するため、第３破断線４５に沿った側板１５Ａ，１５Ｂの破断作業性を向上できる。 In contrast, in the present embodiment, when the side plates 15A and 15B are broken along the third break line 45, the side plates 15A and 15B are bent along the side plate folding curve 65. Therefore, since a shearing force outward in the X direction acts on the front liner 2 of the side plates 15A and 15B, the workability of the side plates 15A and 15B along the third break line 45 can be improved.
　このように、本実施形態の包装箱１０では、第２破断線４０に沿って外フラップ２２を破断する際には、外フラップ折曲線６０に沿って外フラップ２２が折れ曲がることで、破断のための操作力を第２破断線４０に集中させることができる。この際、ホットメルト７０を介して外フラップ２２の操作力を内フラップ２３に伝え、破断のための操作力を第４破断線５０にも集中させることができる。さらに、第３破断線４５に沿って側板１５Ａ，１５Ｂを破断する際には、側板折曲線６５に沿って側板１５Ａ，１５Ｂが折れ曲がることで、破断のための操作力を第３破断線４５に集中させることができる。よって、包装箱１０の開封作業性を向上できる。 As described above, in the packaging box 10 of the present embodiment, when the outer flap 22 is broken along the second breaking line 40, the outer flap 22 is bent along the outer flap folding curve 60. Can be concentrated on the second breaking line 40. At this time, the operating force of the outer flap 22 can be transmitted to the inner flap 23 via the hot melt 70, and the operating force for breaking can be concentrated on the fourth breaking line 50. Further, when the side plates 15A and 15B are broken along the third breaking line 45, the side plates 15A and 15B are bent along the side plate folding curve 65, so that the operating force for breaking is changed to the third breaking line 45. Can concentrate. Therefore, the opening workability | operativity of the packaging box 10 can be improved.
（第２実施形態）
　図９から図１１は第２実施形態の包装箱１０を示す。この包装箱１０は、第１実施形態の包装箱１０よりも、Ｚ方向の全高を高くしたものである。また、蓋壁２０は、外フラップ２１，２２の先端同士が間隔をあけて位置し、内フラップ２３，２３の先端同士が間隔をあけて位置する、ショートフラップによって構成されている。 (Second Embodiment)
9 to 11 show the packaging box 10 of the second embodiment. This packaging box 10 is higher in overall height in the Z direction than the packaging box 10 of the first embodiment. Further, the lid wall 20 is configured by a short flap in which the tips of the outer flaps 21 and 22 are positioned with a space between them, and the tips of the inner flaps 23 and 23 are positioned with a space between them.
　図９及び図１１に示すように、操作部３０と一対の第１破断線３５，３５を含む、天板１４全体の破断構造は、概ね凸形状に形成されている。個々の第１破断線３５は、折曲線２４側の端が操作部３０よりも側板１５Ａ側に位置するように、全体として概ねＳ字形状に湾曲した形状である。第１破断線３５は、側板１５Ａの方へ向かうように湾曲した第１破断部３６と、第１破断部３６から折曲線２４に向かうように湾曲した第２破断部３７とを備える。 As shown in FIGS. 9 and 11, the rupture structure of the entire top plate 14 including the operation unit 30 and the pair of first rupture lines 35 and 35 is formed in a generally convex shape. Each of the first break lines 35 has a shape that is generally curved in an S shape so that the end on the folding line 24 side is positioned on the side plate 15A side with respect to the operation unit 30. The first break line 35 includes a first break portion 36 that is curved toward the side plate 15 </ b> A, and a second break portion 37 that is curved from the first break portion 36 toward the folding line 24.
　第２破断線４０は、第１破断線３５と連続するように、折曲線２４から外フラップ２２の先端にかけて形成されている。 The second break line 40 is formed from the folding line 24 to the tip of the outer flap 22 so as to be continuous with the first break line 35.
　第３破断線４５は、側板１５Ａ，１５ＢのＹ方向の一端から他端にかけて、円弧状の凹凸を繰り返す波状に形成されている。また、第３破断線４５は、底板１３に連続した外フラップ２１の上端に位置するように形成されている。 The third break line 45 is formed in a wave shape that repeats arc-shaped irregularities from one end to the other end in the Y direction of the side plates 15A and 15B. Further, the third break line 45 is formed so as to be positioned at the upper end of the outer flap 21 continuous with the bottom plate 13.
　図１０及び図１１に示すように、第４破断線５０は、全体としてＸ方向に直線的に延びるように形成されている。また、第４破断線５０は、第３破断線４５と同様に、外フラップ２１の上端に位置するように形成されている。 As shown in FIGS. 10 and 11, the fourth fracture line 50 is formed so as to extend linearly in the X direction as a whole. The fourth break line 50 is formed so as to be positioned at the upper end of the outer flap 21, as with the third break line 45.
　内フラップ２３の先端には、Ｘ方向外向きに窪む切欠部５３が設けられている。この切欠部５３は、第４破断線５０に沿った内フラップ２３の破断操作を開始するための操作部である。 A notch 53 that is recessed outward in the X direction is provided at the tip of the inner flap 23. The notch 53 is an operation part for starting the breaking operation of the inner flap 23 along the fourth breaking line 50.
　外フラップ折曲線６０は、第１実施形態と同様に、ホットメルト（図示せず）と折曲線２４の間を通るように、折曲線２４と折曲線２５の交点から定められた傾斜角で、外フラップ２２に形成されている。 As with the first embodiment, the outer flap folding line 60 has an inclination angle determined from the intersection of the folding line 24 and the folding line 25 so as to pass between the hot melt (not shown) and the folding line 24. The outer flap 22 is formed.
　側板折曲線６５は、第１実施形態と同様に、側板１５Ａ，１５Ｂの両側にそれぞれ設けられている。個々の側板１５Ａ，１５Ｂに形成された一対の側板折曲線６５は、第３破断線４５から折曲線１７に向けて、次第に近づく向きに傾斜している。 Side plate folding curves 65 are provided on both sides of the side plates 15A and 15B, respectively, as in the first embodiment. A pair of side plate folding curves 65 formed on the individual side plates 15A and 15B are inclined in a direction gradually approaching from the third breaking line 45 toward the folding curve 17.
　この包装箱１０では、第１実施形態と同様に、封緘と開封が行われる。そして、包装箱１０を開封する際には、外フラップ折曲線６０に沿って外フラップ２２が折れ曲がることで、破断のための操作力を第２破断線４０に集中できるため、外フラップ２２を破断する作業性を向上できる。また、内フラップ２３には切欠部５３が設けられているため、第４破断線５０に沿った内フラップ２３の破断操作性を向上できる。さらに、側板折曲線６５に沿って側板１５Ａ，１５Ｂが折れ曲がることで、破断のための操作力を第３破断線４５に集中できるため、側板１５Ａ，１５Ｂを破断する作業性を向上できる。 In this packaging box 10, sealing and unsealing are performed as in the first embodiment. When the packaging box 10 is opened, the outer flap 22 is bent along the outer flap folding curve 60, so that the operation force for breaking can be concentrated on the second breaking line 40, so that the outer flap 22 is broken. Workability can be improved. Moreover, since the notch 53 is provided in the inner flap 23, the rupture operability of the inner flap 23 along the fourth break line 50 can be improved. Furthermore, since the side plates 15A and 15B are bent along the side plate folding curve 65, the operating force for breaking can be concentrated on the third breaking line 45, so that the workability of breaking the side plates 15A and 15B can be improved.
（第３実施形態）
　図１２から図１４は第３実施形態の包装箱１０を示す。この包装箱１０は、第２実施形態の包装箱１０よりも、Ｚ方向の全高を更に高くしたものである。また、蓋壁２０は、内フラップ２３，２３の先端同士が突き合う長さ（底板１３と天板１４のＸ方向の寸法の半分）に設定され、外フラップ２１，２２の先端同士が間隔をあけて位置する寸法に設定されている。また、貼着板１６は、天板１４の内面（裏ライナ３）に貼着されている。 (Third embodiment)
12-14 shows the packaging box 10 of 3rd Embodiment. This packaging box 10 is higher in overall height in the Z direction than the packaging box 10 of the second embodiment. Further, the lid wall 20 is set to a length (half the dimension in the X direction of the bottom plate 13 and the top plate 14) where the tips of the inner flaps 23 and 23 abut each other, and the tips of the outer flaps 21 and 22 are spaced from each other. The dimension is set to be open. The sticking plate 16 is stuck to the inner surface (back liner 3) of the top plate 14.
　図１２及び図１４に示すように、操作部３０と一対の第１破断線３５，３５を含む天板１４全体の破断構造は、Ｙ方向に延びる折曲線１７に対して傾斜する直線状に形成されている。折曲線２４，２４上に位置する第１破断線３５の両端のうち、一方は側板１５Ａの方に偏って位置し、他方は側板１５Ｂの方に偏って位置している。また、第１破断線３５を構成する切断線は、破断方向に沿って延びる第１切断部と、第１切断部に対して傾斜して延びる第２切断部とを備える、片ジッパーによって構成されている。第２切断部は、操作部３０の方に配置されている。 As shown in FIGS. 12 and 14, the breaking structure of the entire top plate 14 including the operating portion 30 and the pair of first breaking lines 35, 35 is formed in a linear shape inclined with respect to the folding line 17 extending in the Y direction. Has been. Of the both ends of the first breaking line 35 located on the folding lines 24, 24, one is biased toward the side plate 15A and the other is biased toward the side plate 15B. Moreover, the cutting line which comprises the 1st breaking line 35 is comprised by the single zipper provided with the 1st cutting part extended along a breaking direction, and the 2nd cutting part extended incline with respect to a 1st cutting part. ing. The second cutting unit is disposed toward the operation unit 30.
　操作部３０は、第１破断線３５，３５の傾斜方向に沿って２個設けられている。これらの操作部３０は、折曲線３１と、概ね半円形状の破断部３３とで構成されている。折曲線３１，３１は、第１破断線３５に対して直線上に位置するように形成されている。第２破断部３３は、一端が折曲線３１の一端に位置し、他端が折曲線３１の他端に位置している。一方の操作部３０の破断部３３は、側板１５Ａ側に突出し、他方の操作部３０の破断部３３は、側板１５Ｂ側に突出している。 The two operation parts 30 are provided along the inclination direction of the 1st breaking lines 35 and 35. As shown in FIG. These operation parts 30 are composed of a folding line 31 and a substantially semicircular fracture part 33. The folding lines 31 and 31 are formed so as to be positioned on a straight line with respect to the first breaking line 35. The second fracture portion 33 has one end located at one end of the folding line 31 and the other end located at the other end of the folding line 31. The breaking portion 33 of one operation portion 30 protrudes to the side plate 15A side, and the breaking portion 33 of the other operation portion 30 protrudes to the side plate 15B side.
　第２破断線４０は、折曲線２４から外フラップ２２の先端中央にかけて形成されている。第２破断線４０の天板１４側の端と、第１破断線３５の外フラップ２２側の端とは、折曲線２４上の同一点に位置している。つまり、第１破断線３５と第２破断線４０は連続している。一方の外フラップ２２に形成された第２破断線４０は、一方の側板１５Ａに向けて傾斜され、他方の外フラップ２２に形成された第２破断線４０は、他方の側板１５Ｂに向けて傾斜されている。 The second break line 40 is formed from the folding line 24 to the center of the tip of the outer flap 22. The end of the second break line 40 on the top plate 14 side and the end of the first break line 35 on the outer flap 22 side are located at the same point on the folding line 24. That is, the first break line 35 and the second break line 40 are continuous. The second break line 40 formed on one outer flap 22 is inclined toward one side plate 15A, and the second break line 40 formed on the other outer flap 22 is inclined toward the other side plate 15B. Has been.
　第３破断線４５は、全体として概ねＶ字形状に形成されている。つまり、第３破断線４５は、折曲線２５からＹ方向に沿って下向きに傾斜する破断部４８ａ，４８ｂを備える。破断部４８ａ，４８ｂの上端は、外フラップ２１の上端よりも若干高い位置に配置されている。 The third break line 45 is generally formed in a V shape as a whole. That is, the third break line 45 includes break portions 48 a and 48 b that are inclined downward from the folding line 25 along the Y direction. The upper ends of the fracture portions 48 a and 48 b are arranged at a position slightly higher than the upper end of the outer flap 21.
　図１３及び図１４に示すように、第４破断線５０は、この第４破断線５０に引き続いて第３破断線４５に連続するように、内フラップ２３の先端から折曲線２５にかけて上向きに傾斜している。内フラップ２３の先端には、第２実施形態と同様に切欠部５３が設けられている。 As shown in FIGS. 13 and 14, the fourth break line 50 is inclined upward from the front end of the inner flap 23 to the folding line 25 so as to continue to the third break line 45 subsequent to the fourth break line 50. is doing. A notch 53 is provided at the tip of the inner flap 23 as in the second embodiment.
外フラップ折曲線６０は、外フラップ２２において第２破断線４０が傾斜した方に設けられている。つまり、側板１５Ａに向けて第２破断線４０が傾斜されている外フラップ２２には、側板１５Ａの方に外フラップ折曲線６０が形成されている。側板１５Ｂに向けて第２破断線４０が傾斜されている外フラップ２２には、側板１５Ｂの方に外フラップ折曲線６０が形成されている。 The outer flap folding line 60 is provided on the outer flap 22 on the side where the second breaking line 40 is inclined. That is, the outer flap folding line 60 is formed on the outer flap 22 in which the second breaking line 40 is inclined toward the side plate 15A toward the side plate 15A. On the outer flap 22 where the second breaking line 40 is inclined toward the side plate 15B, an outer flap folding curve 60 is formed toward the side plate 15B.
　側板折曲線６５は、第１実施形態と同様に、側板１５Ａ，１５Ｂの両側にそれぞれ設けられている。一対の側板折曲線６５は、天板１４に向けて次第に近づく向きに傾斜されている。 Side plate folding curves 65 are provided on both sides of the side plates 15A and 15B, respectively, as in the first embodiment. The pair of side plate folding curves 65 are inclined so as to gradually approach the top plate 14.
　この包装箱１０では、第２実施形態と同様に、封緘と開封が行われる。そして、包装箱１０を開封する際には、外フラップ折曲線６０に沿って外フラップ２２が折れ曲がることで、破断のための操作力を第２破断線４０に集中できるため、外フラップ２２を破断する作業性を向上できる。また、内フラップ２３には切欠部５３が設けられているため、第４破断線５０に沿った内フラップ２３の破断操作性を向上できる。さらに、側板折曲線６５に沿って側板１５Ａ，１５Ｂが折れ曲がることで、破断のための操作力を第３破断線４５に集中できるため、側板１５Ａ，１５Ｂを破断する作業性を向上できる。 In this packaging box 10, sealing and unsealing are performed as in the second embodiment. When the packaging box 10 is opened, the outer flap 22 is bent along the outer flap folding curve 60, so that the operation force for breaking can be concentrated on the second breaking line 40, so that the outer flap 22 is broken. Workability can be improved. Moreover, since the notch 53 is provided in the inner flap 23, the rupture operability of the inner flap 23 along the fourth break line 50 can be improved. Furthermore, since the side plates 15A and 15B are bent along the side plate folding curve 65, the operating force for breaking can be concentrated on the third breaking line 45, so that the workability of breaking the side plates 15A and 15B can be improved.
（第４実施形態）
　図１５から図１７は第４実施形態の包装箱１０を示す。この包装箱１０は、底板１３と側板１５Ａ，１５Ｂの間と、天板１４と側板１５Ａ，１５Ｂ（貼着板１６）の間に、面取り部２７を備えている。また、天板１４と一対の外フラップ２２，２２の間にも、面取り部２７が設けられている。面取り部２７内には、折曲線１７と折曲線２４は設けられていない。但し、破断線３５，４０と補助折曲線５５，６０の形成（設計）は、面取り部２７を折曲線１７と折曲線２４の一部とみなして行われる。 (Fourth embodiment)
15 to 17 show the packaging box 10 of the fourth embodiment. The packaging box 10 includes a chamfered portion 27 between the bottom plate 13 and the side plates 15A and 15B and between the top plate 14 and the side plates 15A and 15B (sticking plate 16). A chamfered portion 27 is also provided between the top plate 14 and the pair of outer flaps 22 and 22. In the chamfer 27, the folding line 17 and the folding line 24 are not provided. However, the formation (design) of the break lines 35 and 40 and the auxiliary folding curves 55 and 60 is performed by regarding the chamfered portion 27 as part of the folding lines 17 and 24.
　天板１４に形成する第１破断線３５、外フラップ２２に形成する第２破断線４０、側板１５Ａ，１５Ｂに形成する第３破断線４５、及び内フラップ２３に形成する第４破断線５０は、第１実施形態と同様である。 A first break line 35 formed on the top plate 14, a second break line 40 formed on the outer flap 22, a third break line 45 formed on the side plates 15A and 15B, and a fourth break line 50 formed on the inner flap 23 are: This is the same as in the first embodiment.
外フラップ折曲線６０は、第１実施形態と同様に、外フラップ２２に設けられている。側板折曲線６５は、側板１５Ａ，１５Ｂの両側に設けられており、折曲線１７（面取り部２７）に対して直交するように、第３破断線４５から折曲線１７に向けて設けられている。　 The outer flap folding line 60 is provided in the outer flap 22 as in the first embodiment. The side plate folding curve 65 is provided on both sides of the side plates 15A and 15B, and is provided from the third fracture line 45 toward the folding curve 17 so as to be orthogonal to the folding curve 17 (the chamfered portion 27). . *
　このようにした第４実施形態の包装箱１０は、第１実施形態と同様の作用及び効果を得ることができる。 The packaging box 10 of the fourth embodiment configured as described above can obtain the same operations and effects as those of the first embodiment.
（第５実施形態）
　図１８から図２１は第５実施形態の包装箱１０を示す。この包装箱１０は、第３実施形態と同様に、第１実施形態の包装箱１０よりもＺ方向の全高を高くし、内フラップ２３，２３の先端同士が突き合い、外フラップ２１，２２の先端同士が間隔をあけて位置する寸法に設定されている。また、外フラップ２１，２２の先端と内フラップ２３，２３の先端とは、ブランク１０’の状態で不揃いになる寸法に設定されている。 (Fifth embodiment)
18 to 21 show the packaging box 10 of the fifth embodiment. Similar to the third embodiment, the packaging box 10 has an overall height in the Z direction higher than that of the packaging box 10 of the first embodiment, the leading ends of the inner flaps 23 and 23 abut each other, and the outer flaps 21 and 22 The dimensions are set such that the tips are positioned at an interval. Moreover, the front end of the outer flaps 21 and 22 and the front end of the inner flaps 23 and 23 are set to dimensions that are not uniform in the state of the blank 10 ′.
　図１８及び図２１に示すように、操作部３０を含む第１破断線３５は、側板１５Ｂの方へ偏った位置に形成されている。第２破断線４０は、折曲線２４から外フラップ２２の先端にかけて設けられている。第３破断線４５は、第１実施形態と比較して、第１破断部４６のＹ方向の全長を長くし、第２破断部４７のＹ方向の全長を短くしたものである。図２０及び図２１に示すように、第４破断線５０は、第２実施形態と同様に、Ｘ方向に直線状に延びるように構成されている。 As shown in FIGS. 18 and 21, the first break line 35 including the operation unit 30 is formed at a position biased toward the side plate 15B. The second break line 40 is provided from the folding line 24 to the tip of the outer flap 22. The third break line 45 is obtained by increasing the entire length in the Y direction of the first break portion 46 and shortening the entire length in the Y direction of the second break portion 47 as compared with the first embodiment. As shown in FIGS. 20 and 21, the fourth break line 50 is configured to extend linearly in the X direction as in the second embodiment.
　図１８及び図２１に示すように、外フラップ折曲線６０は、第１実施形態と同様に、側板１５Ａ側に位置するように外フラップ２２に設けられている。側板折曲線６５は、側板１５Ａ，１５Ｂの両側に第１実施形態と同様に設けられている。 As shown in FIGS. 18 and 21, the outer flap folding line 60 is provided on the outer flap 22 so as to be located on the side plate 15A side, as in the first embodiment. The side plate folding curve 65 is provided on both sides of the side plates 15A and 15B in the same manner as in the first embodiment.
　図２０及び図２１に示すように、側板１５Ａに連続した内フラップ２３の上部には、切り欠き７２が設けられている。切り欠き７２は、内フラップ２３の先端から折曲線２５に向けて外フラップ折曲線６０に沿って上向きに傾斜した第１辺７２ａと、第１辺７２ａの上端から内フラップ２３の上端に向けて延びる第２辺７２ｂとを備える。 As shown in FIGS. 20 and 21, a notch 72 is provided on the upper portion of the inner flap 23 continuous with the side plate 15A. The notch 72 has a first side 72a inclined upward along the outer flap folding line 60 from the tip of the inner flap 23 toward the folding line 25, and from the upper end of the first side 72a toward the upper end of the inner flap 23. And a second side 72b extending.
　内フラップ２３の基端（折曲線２５）から先端までの寸法が長く、外フラップ折曲線６０の背面側が内フラップ６０で覆われる場合、外フラップ折曲線６０に沿った外フラップ２２の折り曲げが困難になることがある。しかし、切り欠き７２を内フラップ２３に設けることで、外フラップ折曲線６０に沿う第１辺７２ａをガイドとし、外フラップ折曲線６０に沿った外フラップ２２の折り曲げを促進できる。よって、外フラップ２２の破断作業性を効果的に向上できる。 When the dimension from the base end (folding curve 25) to the tip of the inner flap 23 is long and the back side of the outer flap folding curve 60 is covered with the inner flap 60, it is difficult to bend the outer flap 22 along the outer flap folding curve 60. May be. However, by providing the notch 72 in the inner flap 23, the first side 72a along the outer flap folding curve 60 can be used as a guide, and bending of the outer flap 22 along the outer flap folding curve 60 can be promoted. Therefore, the workability of breaking the outer flap 22 can be effectively improved.
　図１９及び図２１に示すように、底板１３には、折曲線７６、第１破断部７７、及び第２破断部７８によって構成された一対の操作部７５，７５が、Ｘ方向に間隔をあけて形成されている。また、底板１３には、底板１３のＸ方向の端に位置する折曲線１７から、操作部７５のＹ方向の端にかけて延びる破断線８０が設けられている。この破断線８０は、直線状の切断線を所定間隔をあけて形成したものである。 As shown in FIGS. 19 and 21, the bottom plate 13 has a pair of operation portions 75 and 75 constituted by a folding line 76, a first breakage portion 77, and a second breakage portion 78 spaced apart in the X direction. Is formed. Further, the bottom plate 13 is provided with a breaking line 80 extending from the folding line 17 located at the end of the bottom plate 13 in the X direction to the end of the operation portion 75 in the Y direction. The breaking line 80 is formed by forming a linear cutting line at a predetermined interval.
　以上の第１実施形態から第５実施形態に示すように、包装箱１０は、天板１４に第１破断線３５を設け、外フラップ２２に第２破断線４０を設け、側板１５Ａ，１５Ｂに第３破断線４５，４５を設け、内フラップ２３に第４破断線５０を設けることで、必要に応じた状態に開封できるため、物品の取出作業性を向上できる。 As shown in the first to fifth embodiments described above, the packaging box 10 is provided with the first breaking line 35 on the top plate 14, the second breaking line 40 on the outer flap 22, and the side plates 15A and 15B. By providing the third break lines 45, 45 and providing the fourth break line 50 on the inner flap 23, it is possible to improve the workability of taking out the article because it can be opened in a necessary state.
　また、外フラップ２２に外フラップ折曲線６０を設けるとともに、側板１５Ａ，１５Ｂに側板折曲線６５，６５を設けることで、破断線４０，４５に沿った包装箱１０の破断作業性を向上できる。 Further, by providing the outer flap folding curve 60 on the outer flap 22 and providing the side plate folding curves 65, 65 on the side plates 15A, 15B, it is possible to improve the breaking workability of the packaging box 10 along the breaking lines 40, 45.
　また、包装箱１０のＸ方向の幅、Ｙ方向の奥行き、及びＺ方向の高さは、必要に応じて変更が可能である。また、蓋壁２０を構成する外フラップ２１，２２と内フラップ２３，２３の突出寸法も、必要に応じて変更が可能である。いずれのように構成しても、第１破断線３５、第２破断線４０、第３破断線４５、第４破断線５０、外フラップ折曲線６０、及び側板折曲線６５を設けることで、物品の取出作業性が良好な状態に、包装箱１０を開封できる。 Further, the width in the X direction, the depth in the Y direction, and the height in the Z direction of the packaging box 10 can be changed as necessary. Moreover, the protrusion dimension of the outer flaps 21 and 22 and the inner flaps 23 and 23 which comprise the cover wall 20 can also be changed as needed. Regardless of the configuration, the first break line 35, the second break line 40, the third break line 45, the fourth break line 50, the outer flap fold curve 60, and the side plate fold curve 65 are provided. The packaging box 10 can be opened in a state where the take-out workability is good.
（包装箱の変形例）
　図２２から図３３は、包装箱のブランク１０’の変形例を示す。これらのブランク１０’のように、第１破断線３５、第２破断線４０、第３破断線４５、第４破断線５０、外フラップ折曲線６０、及び側板折曲線６５の構成は、必要に応じて変更することができる。また、天板１４には、第１破断線３５に沿った天板１４の破断を促進するための天板折曲部５５を必要に応じて設けてもよい。 (Modification of packaging box)
22 to 33 show modifications of the packaging box blank 10 '. Like these blanks 10 ', the configuration of the first break line 35, the second break line 40, the third break line 45, the fourth break line 50, the outer flap folding curve 60, and the side plate folding curve 65 is necessary. It can be changed accordingly. Further, the top plate 14 may be provided with a top plate bent portion 55 for accelerating breakage of the top plate 14 along the first break line 35 as necessary.
（第１破断線の変形例）
　天板１４に形成する第１破断線３５の代表的な形態としては、図３の第１実施形態が挙げられる。この第１実施形態の第１破断線３５は、折曲線１７に対して平行な直線状に形成されている。この第１破断線３５と同様の構成は、図１７の第４実施形態、図２１の第５実施形態、図２２から図２９及び図３３の変形例に用いられている。 (Modification of first break line)
As a typical form of the 1st breaking line 35 formed in the top plate 14, 1st Embodiment of FIG. 3 is mentioned. The first breaking line 35 of the first embodiment is formed in a straight line parallel to the folding line 17. The same configuration as the first break line 35 is used in the fourth embodiment of FIG. 17, the fifth embodiment of FIG. 21, and the modifications of FIGS. 22 to 29 and FIG.
　図２７の変形例では、ブランク１０’の状態で底板１３と天板１４の位置が、第１実施形態と異なっている。図２８の変形例では、操作部３０を２個設けている点で、第１実施形態と異なっている。図２９の変形例では、一対の外フラップ２２，２２のうちの一方に操作部３０を近づけた点で、第１実施形態と異なっている。 27, the positions of the bottom plate 13 and the top plate 14 in the state of the blank 10 'are different from those of the first embodiment. 28 is different from the first embodiment in that two operation units 30 are provided. 29 is different from the first embodiment in that the operation unit 30 is brought close to one of the pair of outer flaps 22 and 22.
　また、第１破断線３５は、図３０及び図３１の変形例に示すように、直線以外の形状としてもよい。図３０及び図３１の変形例では、操作部３０を含む一対の第１破断線３５，３５全体が、円弧状に形成されている。 Further, the first breaking line 35 may have a shape other than a straight line as shown in the modification examples of FIGS. 30 and 31. In the modification of FIGS. 30 and 31, the entire pair of first break lines 35, 35 including the operation unit 30 is formed in an arc shape.
　また、図１１の第２実施形態の第１破断線３５は、操作部３０を含む一部分が他の部分よりも突出した位置にあることに特徴を有する。この第２実施形態の第１破断線３５と同様の構成は、図３２の変形例に用いられている。 Further, the first break line 35 of the second embodiment in FIG. 11 is characterized in that a part including the operation part 30 is in a position protruding from the other part. The same configuration as the first break line 35 of the second embodiment is used in the modification of FIG.
　また、図１４の第３実施形態の第１破断線３５は、操作部３０を含む全体を折曲線１７に対して傾斜させたことに特徴を有する。 Further, the first break line 35 of the third embodiment in FIG. 14 is characterized in that the whole including the operation unit 30 is inclined with respect to the folding line 17.
　これらのように、第１破断線３５は、直線状、円弧状、Ｖ字状、一部のみが突出する形状のいずれの形態としてもよい。また、折曲線１７に対する角度も必要に応じて変更が可能である。 As described above, the first break line 35 may be in any form of a straight line, a circular arc, a V shape, or a shape in which only a part protrudes. Further, the angle with respect to the folding line 17 can be changed as necessary.
（第２破断線の変形例）
　外フラップ２２に形成する第２破断線４０の代表的な形態としては、図１１の第２実施形態が挙げられる。この第２破断線４０は、折曲線２４から外フラップ２２の先端にかけて延び、側板１５Ａの方へ傾斜（湾曲）している。この第２破断線４０と同様の構成は、図２１から図２４、図２７、図２８、及び図３０から図３２の変形例に用いられている。 (Modification of second break line)
As a typical form of the second break line 40 formed in the outer flap 22, the second embodiment of FIG. The second break line 40 extends from the folding line 24 to the tip of the outer flap 22, and is inclined (curved) toward the side plate 15A. The same configuration as the second break line 40 is used in the modified examples of FIGS. 21 to 24, 27, 28, and 30 to 32.
　図３の第１実施形態では、第２破断線４０の先端を、外フラップ２２の先端に対して定められた間隔をあけて位置させた点で、第２実施形態の第２破断線４０と異なっている。この第１実施形態の第２破断線４０と同様の構成は、図１７の第４実施形態、図２５及び図３３の変形例に用いられている。 In the first embodiment of FIG. 3, the tip of the second break line 40 is positioned at a predetermined interval with respect to the tip of the outer flap 22, and the second break line 40 of the second embodiment is Is different. The same configuration as the second break line 40 of the first embodiment is used in the fourth embodiment in FIG. 17 and the modified examples in FIGS. 25 and 33.
　図１４の第３実施形態では、第２破断線４０が傾斜する向きを、一対の外フラップ２２，２２のうちの一方と他方で異ならせている。図２６の変形例では、第２破断線４０を、側板１５Ａ，１５Ｂの両方へ延びるように２本設けている。図２９の変形例では、第２破断線４０を傾斜させることなく、折曲線２４に対して直交する方向に延びる直線状としている。 In the third embodiment of FIG. 14, the direction in which the second break line 40 is inclined is different between one of the pair of outer flaps 22 and 22 and the other. In the modification of FIG. 26, two second break lines 40 are provided so as to extend to both the side plates 15A and 15B. In the modification of FIG. 29, the second break line 40 is not inclined, but is a straight line extending in a direction orthogonal to the folding line 24.
　このように、第２破断線４０は、１本のみとしてもよいし、２本設けてもよい。また、第２破断線４０の傾斜角度や湾曲率は、必要に応じて変更してもよい。 Thus, the number of the second break lines 40 may be only one, or two. Moreover, you may change the inclination-angle and curvature rate of the 2nd fracture | rupture line 40 as needed.
（外フラップ折曲線の変形例）
　外フラップ２２に形成する外フラップ折曲線６０の代表的な形態としては、図３の第１実施形態が挙げられる。この外フラップ折曲線６０は、折曲線２４から外フラップ２２の先端に向けて傾斜している。この外フラップ折曲線６０と同様の構成は、図１１、図１４、図１７、及び図２１に示す第２実施形態から第５実施形態、図２２、図２４、図２５、図２７から図２９、図３２、及び図３３に示す変形例に用いられている。 (Modification of outer flap folding curve)
As a typical form of the outer flap folding line 60 formed on the outer flap 22, the first embodiment of FIG. The outer flap folding line 60 is inclined from the folding line 24 toward the tip of the outer flap 22. The configuration similar to the outer flap folding line 60 is the second to fifth embodiments shown in FIGS. 11, 14, 17, and 21, FIGS. 22, 24, 25, and 27 to 29. 32 and 33 are used in the modified example.
　図２３、図２６及び図３０の変形例では、外フラップ折曲線６０を、外フラップ２２の両側に一対設けている。 23, 26 and 30, a pair of outer flap folding curves 60 are provided on both sides of the outer flap 22.
　このように、外フラップ折曲線６０は、１本のみとしてもよいし、第２破断線４０の両側に２本設けてもよい。また、外フラップ折曲線６０の傾斜角度は、必要に応じて変更してもよい。また、図３１の変形例のように、外フラップ折曲線６０を設けずに、側板折曲線６５だけを設ける構成としてもよい。 Thus, only one outer flap folding curve 60 may be provided, or two outer flap folding lines 60 may be provided on both sides of the second breaking line 40. Moreover, you may change the inclination-angle of the outer flap folding curve 60 as needed. Moreover, it is good also as a structure which provides only the side plate folding curve 65, without providing the outer flap folding curve 60 like the modification of FIG.
（第３破断線の変形例）
　側板１５Ａ，１５Ｂに形成する第３破断線４５の代表的な形態としては、図３の第１実施形態が挙げられる。この第３破断線４５は、側板１５Ａ，１５Ｂの両側の折曲線２５，２５から内側下向きに傾斜する第１破断部４６と、折曲線１７に対して平行な第２破断部４７とで構成されている。この第３破断線４５と同様の構成は、図１７の第４実施形態、図２１の第５実施形態、図２２、図２４から図３３の変形例に用いられている。 (Modification of third break line)
As a typical form of the third break line 45 formed on the side plates 15A and 15B, the first embodiment shown in FIG. The third break line 45 includes a first break portion 46 that is inclined inward and downward from the folding lines 25 and 25 on both sides of the side plates 15A and 15B, and a second breaking portion 47 that is parallel to the folding line 17. ing. The same configuration as the third break line 45 is used in the fourth embodiment of FIG. 17, the fifth embodiment of FIG. 21, and the modified examples of FIGS. 22 and 24 to 33.
　図１１の第２実施形態では、第３破断線４５は、円弧状の凹凸を繰り返す波状に形成されている。この第２実施形態の第３破断線４５と同様の構成は、図２３の変形例に用いられている。また、図１４の第３実施形態では、第３破断線４５は、全体としてＶ字形状に形成されている。 In the second embodiment of FIG. 11, the third break line 45 is formed in a wave shape that repeats arc-shaped irregularities. The same configuration as the third break line 45 of the second embodiment is used in the modification of FIG. Moreover, in 3rd Embodiment of FIG. 14, the 3rd broken line 45 is formed in the V shape as a whole.
　このように、第３破断線４５の形状は、必要に応じて変更してもよい。また、第３破断線４５の第２破断部４７には、天板１４側又は底板１３側に突出する部分を設けてもよい。さらに、第３破断線４５は、一対の側板１５Ａ，１５Ｂのうちの一方だけに設けてもよい。 Thus, the shape of the third break line 45 may be changed as necessary. Moreover, you may provide the part which protrudes in the 2nd fracture | rupture part 47 of the 3rd fracture | rupture line 45 to the top-plate 14 side or the baseplate 13 side. Further, the third break line 45 may be provided only on one of the pair of side plates 15A and 15B.
（側板折曲線の変形例）
　側板１５Ａ，１５Ｂに形成する側板折曲線６５の代表的な形態としては、図３の第１実施形態が挙げられる。この側板折曲線６５は、側板１５Ａ，１５Ｂに対して一対設けられ、これらが第３破断線４５の方から天板１４側の折曲線１７に向けて次第に近づくように傾斜している。この側板折曲線６５と同様の構成は、図１１の第２実施形態、図１４の第３実施形態、図２１の第５実施形態、図２２、図２４、図２６、図２８、図２９、図３１から図３３の変形例に用いられている。 (Modification of side plate folding curve)
A typical embodiment of the side plate folding curve 65 formed on the side plates 15A and 15B is the first embodiment shown in FIG. A pair of the side plate folding curves 65 are provided with respect to the side plates 15A and 15B, and they are inclined so as to gradually approach from the third breaking line 45 toward the folding curve 17 on the top plate 14 side. The same configuration as the side plate folding curve 65 includes the second embodiment shown in FIG. 11, the third embodiment shown in FIG. 14, the fifth embodiment shown in FIG. 21, the FIGS. 22, 24, 26, 28, 29, and 29. It is used in the modified example of FIGS.
　但し、側板折曲線６５は、側板１５Ａ，１５Ｂの一側だけに設けてもよい。また、側板折曲線６５は、図１７の第４実施形態、図２５及び図２７の変形例に示すように、折曲線１７に対して直交する方向に延びるように設けてもよく、その傾斜角度は必要に応じて変更が可能である。また、図２３及び図３０の変形例のように、側板折曲線６５を設けない構成としてもよい。 However, the side plate folding curve 65 may be provided only on one side of the side plates 15A and 15B. Further, the side plate folding curve 65 may be provided so as to extend in a direction orthogonal to the folding curve 17 as shown in the fourth embodiment of FIG. 17 and the modification examples of FIGS. Can be changed as necessary. Moreover, it is good also as a structure which does not provide the side plate folding curve 65 like the modification of FIG.23 and FIG.30.
（第４破断線の変形例）
　内フラップ２３に形成する折曲線３１の代表的な形態としては、図３の第１実施形態が挙げられる。この第４破断線５０は、内フラップ２３の先端から第３破断線４５に連続するように、Ｖ字状に形成されている。この第３破断線４５と同様の構成は、図１７の第４実施形態、図２２、図２４、図２６、図２７、図２９、図３０、及び図３３の変形例に用いられている。 (Modification of the fourth break line)
As a typical form of the folding line 31 formed on the inner flap 23, the first embodiment of FIG. The fourth break line 50 is formed in a V shape so as to continue from the tip of the inner flap 23 to the third break line 45. The same configuration as the third break line 45 is used in the fourth embodiment shown in FIG. 17 and the modifications shown in FIGS. 22, 24, 26, 27, 29, 30, and 33.
　図１１の第２実施形態では、第４破断線５０は、直線状に形成されている。この第２実施形態の第４破断線５０と同様の構成は、図１４の第３実施形態、図２１の第５実施形態、図２３、図２５、図２８、図３１、及び図３２の変形例に用いられている。また、図１１の第２実施形態、図１４の第３実施形態、図２１の第５実施形態、図２２から図２４、図２６、図２８、図２９、図３１、及び図３２の変形例では、内フラップ２３の先端に切欠部５３を設けている。 In the second embodiment of FIG. 11, the fourth break line 50 is formed in a straight line shape. The configuration similar to the fourth breaking line 50 of the second embodiment is the same as that of the third embodiment of FIG. 14, the fifth embodiment of FIG. 21, and the modifications of FIGS. 23, 25, 28, 31, and 32. Used in examples. Also, the second embodiment of FIG. 11, the third embodiment of FIG. 14, the fifth embodiment of FIG. 21, and the modifications of FIGS. 22 to 24, 26, 28, 29, 31, and 32. Then, a notch 53 is provided at the tip of the inner flap 23.
　このように、第４破断線５０の形状や傾斜角度は、必要に応じて変更してもよい。また、切欠部５３によって、第４破断線５０に沿って内フラップ２３を簡単に破断できるようにしてもよい。 Thus, the shape and inclination angle of the fourth break line 50 may be changed as necessary. Further, the inner flap 23 may be easily broken along the fourth breaking line 50 by the notch 53.
（天板折曲線の追加）
　天板１４にも、第１破断線３５に沿った天板１４の破断を促進する天板折曲線５５を設けてもよい。この天板折曲線５５の一例を図２８に示す。天板折曲線５５は、第１破断線３５に沿った天板１４の破断時に、天板１４を折り曲げることで、開封操作力を第１破断線３５に集中させるものである。天板折曲線５５は、第１破断線３５を挟んで両側に設けられている。個々の天板折曲線５５は、第１破断線３５から側板１５Ａ，１５Ｂに向けて延びる一対の第１折曲部５５ａ，５５ａを備える。一対の第１折曲部５５ａは、汎用罫線からなり、操作部３０から側壁１５Ａ，１５Ｂに向けて、次第に離れる向きに傾斜している。 (Adding a top plate folding curve)
The top plate 14 may also be provided with a top plate folding curve 55 that promotes breakage of the top plate 14 along the first break line 35. An example of the top plate folding curve 55 is shown in FIG. The top plate folding curve 55 concentrates the opening operation force on the first breaking line 35 by bending the top plate 14 when the top plate 14 breaks along the first breaking line 35. The top plate folding curve 55 is provided on both sides of the first breaking line 35. Each top plate folding curve 55 includes a pair of first bent portions 55a and 55a extending from the first breaking line 35 toward the side plates 15A and 15B. A pair of 1st bending part 55a consists of a general ruled line, and inclines in the direction which leaves | separates gradually toward the side walls 15A and 15B from the operation part 30. As shown in FIG.
　操作部３０側に位置する第１折曲部５５ａの一端は、操作部３０と定められた間隔をあけて位置している。一対の第１折曲部５５ａの一端には、汎用罫線からなる折曲線５５ｃが架設されている。折曲線１７側に位置する第１折曲部５５ａの他端は、折曲線１７と定められた間隔をあけて位置している。 One end of the first bent portion 55a located on the operation unit 30 side is located at a predetermined interval from the operation unit 30. A folding line 55c made of a general ruled line is constructed at one end of the pair of first bent portions 55a. The other end of the first bent portion 55 a located on the folding line 17 side is located at a predetermined interval from the folding line 17.
　操作部３０に手を通して側板１５Ａ側の天板１４を把持し、天板１４を引き上げると、第１折曲部５５ａと折曲線５５ｃが山折れする。これにより、天板折曲線５５を支点として、操作力を第１破断線３５に作用させることができるため、第１破断線３５に沿った天板１４の破断作業を省力化できる。よって、天板１４の破断作業性を向上できる。 When the top plate 14 on the side plate 15A side is gripped through the operation unit 30 and the top plate 14 is pulled up, the first bent portion 55a and the folding line 55c are broken. Thereby, since the operating force can be applied to the first break line 35 with the top plate folding curve 55 as a fulcrum, labor for breaking the top plate 14 along the first break line 35 can be saved. Therefore, the workability of breaking the top plate 14 can be improved.
　また、天板折曲線５５は、図３３に示す変形例のようにしてもよい。この変形例の天板折曲線５５は、第１破断線３５を挟んで両側に設けられている。個々の天板折曲線５５は、逆罫線からなる一対の第２折曲部５５ｂを備える。一対の第２折曲部５５ｂは、第１破断線３５の両端から側板１５Ａ，１５Ｂに向けて、次第に近づく向きに傾斜されている。第１破断線３５側に位置する第２折曲部５５ｂの一端は、第１破断線３５と折曲線２４の交点と定められた間隔をあけて位置している。折曲線１７側に位置する第２折曲部５５ｂの他端は、折曲線１７と定められた間隔をあけて位置している。 Further, the top plate folding curve 55 may be as shown in a modification shown in FIG. The top plate folding curve 55 of this modification is provided on both sides with the first break line 35 in between. Each top plate folding curve 55 includes a pair of second bent portions 55b made of reverse ruled lines. The pair of second bent portions 55b are inclined toward the side plates 15A and 15B from both ends of the first break line 35 so as to gradually approach each other. One end of the second bent portion 55b located on the first break line 35 side is located at a predetermined interval from the intersection of the first break line 35 and the folding line 24. The other end of the second bent portion 55b located on the folding line 17 side is located at a predetermined interval from the folding line 17.
　図２８に示す第１折曲部５５ａ及び図３３に示す第２折曲部５５ｂの両方を天板１４に設けてもよい。また、第１折曲部５５ａは、操作部３０から外側へ傾斜する構成に限らず、折曲線２５に沿って平行に設けてもよい。また、第２折曲部５５ｂの傾斜角度も、必要に応じて変更が可能である。また、天板折曲線５５は、第１破断線３５において、一対の側板１５Ａ，１５Ｂのうちの一方だけに設けてもよい。 Both the first bent portion 55a shown in FIG. 28 and the second bent portion 55b shown in FIG. The first bent portion 55 a is not limited to the configuration inclined outward from the operation unit 30, and may be provided in parallel along the folding line 25. Further, the inclination angle of the second bent portion 55b can be changed as necessary. Further, the top plate folding curve 55 may be provided on only one of the pair of side plates 15A and 15B in the first breaking line 35.
（切り欠きの変形例）
　内フラップ２３に形成する切り欠き７２の代表的な形態としては、図２１の第５実施形態が挙げられる。切り欠き７２は、外フラップ折曲線６０に沿って延びる第１辺７２ａと、第１辺７２ａの上端から内フラップ２３の上端に向けて延びる第２辺７２ｂとを備える。この切り欠き７２と同様の構成は、図２２、図２８、図３０、及び図３２の変形例に用いられている。この切り欠き７２は、第１辺７２ａのみによって構成してもよい。 (Variation of notch)
A typical form of the notch 72 formed in the inner flap 23 is the fifth embodiment of FIG. The cutout 72 includes a first side 72 a extending along the outer flap folding curve 60 and a second side 72 b extending from the upper end of the first side 72 a toward the upper end of the inner flap 23. A configuration similar to this notch 72 is used in the modified examples of FIGS. 22, 28, 30, and 32. The cutout 72 may be configured only by the first side 72a.
（内フラップ折曲線の追加）
　切り欠き７２の代わりに、内フラップ２３には、外フラップ折曲線６０に沿って延び、内フラップ２３を折り曲げる内フラップ折曲線８５を設けてもよい。この内フラップ折曲線８５の一例を図２３と図２４の変形例に示す。 (Inner flap fold curve added)
Instead of the cutout 72, the inner flap 23 may be provided with an inner flap folding curve 85 that extends along the outer flap folding curve 60 and bends the inner flap 23. An example of the inner flap folding curve 85 is shown in the modified examples of FIGS.
　内フラップ折曲線８５は、第２破断線４０に沿った外フラップ２２の破断促進と、第３折曲線４５に沿った内フラップ２３の破断促進のために設けられている。内フラップ折曲線８５は、汎用罫線からなり、折曲線１７，２５の交点から内フラップ２３の先端にかけて設けられている。内フラップ折曲線８５の傾斜角度は、組立状態で外側に位置する外フラップ折曲線６０の傾斜角度と同一である。 The inner flap fold curve 85 is provided for promoting breakage of the outer flap 22 along the second break line 40 and for promoting breakage of the inner flap 23 along the third break line 45. The inner flap fold curve 85 is a general ruled line, and is provided from the intersection of the fold curves 17 and 25 to the tip of the inner flap 23. The inclination angle of the inner flap folding curve 85 is the same as the inclination angle of the outer flap folding curve 60 located outside in the assembled state.
　第１破断線３５に沿った天板１４の破断後、第２破断線４０に沿って外フラップ２２を破断するとともに、第４破断線５０に沿って内フラップ２３を破断する際、外フラップ折曲線６０に沿って外フラップ２２が折れ曲がるとともに、内フラップ折曲線８５に沿って内フラップ２３が折れ曲がる。そのため、外フラップ折曲線６０に沿った外フラップ２２の折り曲げを促進できる。よって、外フラップ２２の破断作業性を効果的に向上できるうえ、内フラップ２３の折れ曲がりによって内フラップ２３の破断作業性を効果的に向上できる。 After breaking the top plate 14 along the first break line 35, the outer flap 22 is broken along the second break line 40 and the inner flap 23 is broken along the fourth break line 50. The outer flap 22 bends along the curve 60, and the inner flap 23 bends along the inner flap fold curve 85. Therefore, bending of the outer flap 22 along the outer flap folding curve 60 can be promoted. Therefore, the breaking workability of the outer flap 22 can be effectively improved, and the breaking workability of the inner flap 23 can be effectively improved by the bending of the inner flap 23.
　以上のように、第１破断線３５、第２破断線４０、第３破断線４５、第４破断線５０の形状は、必要に応じて変更が可能である。また、各破断線３５～５０を構成する切断線の形状も必要に応じて変更が可能である。また、天板折曲線５５、外フラップ折曲線６０、側板折曲線６５、及び切り欠き７２又は内フラップ折曲線８５の形状や傾斜角度は、必要に応じて変更が可能である。 As described above, the shapes of the first break line 35, the second break line 40, the third break line 45, and the fourth break line 50 can be changed as necessary. Further, the shape of the cutting line constituting each of the breaking lines 35 to 50 can be changed as necessary. Moreover, the shape and inclination angle of the top plate folding curve 55, the outer flap folding curve 60, the side plate folding curve 65, and the notch 72 or the inner flap folding curve 85 can be changed as necessary.
　そして、包装箱１０は、各図に示す形態以外にも、第１破断線３５、第２破断線４０、第３破断線４５、第４破断線５０、天板折曲線５５外フラップ折曲線６０、側板折曲線６５、及び切り欠き７２又は内フラップ折曲線８５を、必要に応じて組み合わせて構成することができる。 And the packaging box 10 has the 1st broken line 35, the 2nd broken line 40, the 3rd broken line 45, the 4th broken line 50, the top plate folding curve 55 and the outer flap folding curve 60 besides the form shown in each figure. The side plate folding curve 65 and the notch 72 or the inner flap folding curve 85 can be combined as necessary.
　図３４に示すように、内フラップ２３には、第４破断線５０の代わりに、横Ｊ字形状の切断線８２を設けてもよい。このようにすれば、包装箱１０に対して上方から荷重が加わることで、上側の外フラップ２２の先端部分が、下側の外フラップ２１の先端部分にオーバーラップした際に、切断線８２によって内フラップ２３の切断縁がオーバーラップすることができる。よって、包装箱１０を積み重ねた際に、上側の包装箱１０の荷重で下側の包装箱１０が座屈することを防止できる。 34, the inner flap 23 may be provided with a horizontal J-shaped cutting line 82 in place of the fourth breaking line 50. In this way, when a load is applied to the packaging box 10 from above, when the tip portion of the upper outer flap 22 overlaps the tip portion of the lower outer flap 21, the cutting line 82 The cutting edge of the inner flap 23 can overlap. Therefore, when the packaging boxes 10 are stacked, the lower packaging box 10 can be prevented from buckling due to the load of the upper packaging box 10.
　包装箱は、ラップアラウンドケースに限られず、外周壁の上下に開口端を有し、この開口端をフラップで塞ぐようにした汎用包装箱であってもよい。また、包装箱１０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。 The packaging box is not limited to a wraparound case, and may be a general-purpose packaging box having open ends at the top and bottom of the outer peripheral wall, and closing the open ends with flaps. The material of the packaging box 10 is not limited to a paper cardboard sheet, and may be a resin cardboard sheet. The material of the packaging box 10 is not limited to a corrugated cardboard sheet, and may be a single cardboard or a resin sheet.
　１…段ボールシート
　２…表ライナ
　３…裏ライナ
　４…中しん
　１０…包装箱
　１０’…ブランク
　１２…外周壁
　１３…底板
　１４…天板（第１側板）
　１５Ａ，１５Ｂ…側板（第２側板）
　１６…貼着板
　１７…折曲線
　２０…蓋壁
　２１…外フラップ
　２２…外フラップ
　２３…内フラップ
　２４…折曲線
　２５…折曲線
　２７…面取り部
　３０…操作部
　３１…折曲線
　３２…第１破断部
　３３…第２破断部
　３５…第１破断線
　３６…第１破断部
　３７…第２破断部
　４０…第２破断線
　４５…第３破断線
　４６…第１破断部
　４７…第２破断部
　４８ａ，４８ｂ…破断部
　５０…第４破断線
　５１…第１破断部
　５２…第２破断部
　５３…切欠部
　５５…天板折曲線
　５５ａ…第１折曲部
　５５ｂ…第２折曲部
　５５ｃ…折曲線
　６０…外フラップ折曲線
　６５…側板折曲線（第２側板折曲線）
　７０…ホットメルト
　７２…切り欠き
　７２ａ…第１辺
　７２ｂ…第２辺
　７５…操作部
　７６…折曲線
　７７…第１破断部
　７８…第２破断部
　８０…破断線
　８２…切断線
　８５…内フラップ折曲線 DESCRIPTION OF SYMBOLS 1 ... Corrugated cardboard sheet 2 ... Front liner 3 ... Back liner 4 ... Middle shin 10 ... Packaging box 10 '... Blank 12 ... Outer peripheral wall 13 ... Bottom plate 14 ... Top plate (1st side plate)
15A, 15B ... side plate (second side plate)
DESCRIPTION OF SYMBOLS 16 ... Adhesion board 17 ... Folding curve 20 ... Lid wall 21 ... Outer flap 22 ... Outer flap 23 ... Inner flap 24 ... Folding curve 25 ... Folding curve 27 ... Chamfering part 30 ... Operation part 31 ... Folding curve 32 ... First break Part 33 ... second fracture part 35 ... first fracture line 36 ... first fracture part 37 ... second fracture part 40 ... second fracture line 45 ... third fracture line 46 ... first fracture part 47 ... second fracture part 48a , 48b ... fracture part 50 ... fourth fracture line 51 ... first fracture part 52 ... second fracture part 53 ... notch part 55 ... top plate folding curve 55a ... first folding part 55b ... second folding part 55c ... folding Curve 60 ... Outer flap fold curve 65 ... Side plate fold curve (second side fold curve)
DESCRIPTION OF SYMBOLS 70 ... Hot melt 72 ... Notch 72a ... 1st edge 72b ... 2nd edge 75 ... Operation part 76 ... Folding curve 77 ... 1st fracture | rupture part 78 ... 2nd fracture | rupture part 80 ... Breaking line 82 ... Cutting line 85 ... Inner flap Folding line

Claims (7)

  1. 　第１側板と、
    　前記第１側板の対向する一対の第１辺に連設され、前記第１側板に対して折り曲げられた外フラップと、
    　前記第１側板の前記第１辺と交差する一対の第２辺に連設され、前記第１側板に対して前記外フラップと同じ向きに折り曲げられた第２側板と、
    　前記第１側板の前記第２辺と交差する前記第２側板の一対の第３辺に連設され、前記外フラップの内面に位置するように前記第２側板に対して折り曲げられた内フラップと、
    　前記第１側板に設けられ、前記第１側板を破断操作するための操作部と、
    　前記第１側板に設けられ、前記操作部から前記第１辺にかけて延びる第１破断線と、
    　前記外フラップに設けられ、前記第１破断線と連続し、前記外フラップの先端に向けて延びる第２破断線と、
    　一対の前記第２側板のうちの少なくとも一方に設けられ、前記一対の第３辺のうち、一方から他方にかけて延びる第３破断線と、
    　前記外フラップに設けられ、前記第１側板の前記第１辺側から前記外フラップの先端に向けて延び、前記第２破断線に沿った前記外フラップの破断時に、前記外フラップを折り曲げる外フラップ折曲線と
    　を備える、包装箱。     A first side plate;
    An outer flap connected to a pair of opposing first sides of the first side plate and bent with respect to the first side plate;
    A second side plate connected to a pair of second sides intersecting with the first side of the first side plate and bent in the same direction as the outer flap with respect to the first side plate;
    An inner flap that is connected to a pair of third sides of the second side plate that intersects the second side of the first side plate and is bent with respect to the second side plate so as to be positioned on an inner surface of the outer flap; ,
    An operating portion provided on the first side plate for operating to break the first side plate;
    A first break line provided on the first side plate and extending from the operation portion to the first side;
    A second break line provided on the outer flap, continuous with the first break line, and extending toward a tip of the outer flap;
    A third break line provided on at least one of the pair of second side plates and extending from one to the other of the pair of third sides;
    An outer flap that is provided on the outer flap, extends from the first side of the first side plate toward the tip of the outer flap, and bends the outer flap when the outer flap breaks along the second breaking line. A packaging box comprising a folding line.
  2. 　前記内フラップには、前記外フラップ折曲線に沿って延びる辺を有する切り欠きが設けられている、請求項１に記載の包装箱。 The packaging box according to claim 1, wherein the inner flap is provided with a notch having a side extending along the outer flap folding curve.
  3. 　前記内フラップには、前記外フラップ折曲線に沿って延び、前記内フラップを折り曲げる内フラップ折曲線が設けられている、請求項１に記載の包装箱。 The packaging box according to claim 1, wherein the inner flap is provided with an inner flap folding curve that extends along the outer flap folding curve and bends the inner flap.
  4. 　前記第２側板には、前記第３破断線から前記第１側板の前記第２辺に向けて延び、前記第３破断線に沿った前記第２側板の破断時に、前記第２側板を折り曲げる第２側板折曲線が設けられている、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 extends from the third break line toward the second side of the first side plate, and bends the second side plate when the second side plate breaks along the third break line. The packaging box according to any one of claims 1 to 3, wherein a two-side plate folding curve is provided.
  5. 　第１側板と、
    　前記第１側板の対向する一対の第１辺に連設され、前記第１側板に対して折り曲げられた外フラップと、
    　前記第１側板の前記第１辺と交差する一対の第２辺に連設され、前記第１側板に対して前記外フラップと同じ向きに折り曲げられた第２側板と、
    　前記第１側板の前記第２辺と交差する前記第２側板の一対の第３辺に連設され、前記外フラップの内面に位置するように前記第２側板に対して折り曲げられた内フラップと、
    　前記第１側板に設けられ、前記第１側板を破断操作するための操作部と、
    　前記第１側板に設けられ、前記操作部から前記第１辺にかけて延びる第１破断線と、
    　前記外フラップに設けられ、前記第１破断線と連続し、前記外フラップの先端に向けて延びる第２破断線と、
    　一対の前記第２側板のうちの少なくとも一方に設けられ、前記第２側板の前記一対の第３辺のうち、一方から他方にかけて延びる第３破断線と、
    　前記第２側板に設けられ、前記第３破断線から前記第１側板の前記第２辺に向けて延び、前記第３破断線に沿った前記第２側板の破断時に、前記第２側板を折り曲げる第２側板折曲線と
    　を備える、包装箱。     A first side plate;
    An outer flap connected to a pair of opposing first sides of the first side plate and bent with respect to the first side plate;
    A second side plate connected to a pair of second sides intersecting with the first side of the first side plate and bent in the same direction as the outer flap with respect to the first side plate;
    An inner flap that is connected to a pair of third sides of the second side plate that intersects the second side of the first side plate and is bent with respect to the second side plate so as to be positioned on an inner surface of the outer flap; ,
    An operating portion provided on the first side plate for operating to break the first side plate;
    A first break line provided on the first side plate and extending from the operation portion to the first side;
    A second break line provided on the outer flap, continuous with the first break line, and extending toward a tip of the outer flap;
    A third break line provided on at least one of the pair of second side plates and extending from one to the other of the pair of third sides of the second side plate;
    The second side plate is provided on the second side plate, extends from the third break line toward the second side of the first side plate, and bends the second side plate when the second side plate breaks along the third break line. A packaging box comprising: a second side plate folding curve.
  6. 　前記内フラップには、前記内フラップの先端側から前記第３破断線に連続するように延びる第４破断線が設けられている、請求項１から５のいずれか１項に記載の包装箱。 The packaging box according to any one of claims 1 to 5, wherein the inner flap is provided with a fourth break line extending from the tip side of the inner flap so as to be continuous with the third break line.
  7. 　前記内フラップの先端には、前記内フラップを前記第４破断線に沿って破断操作するための切欠部が形成されている、請求項６に記載の包装箱。 The packaging box according to claim 6, wherein a notch for breaking the inner flap along the fourth breaking line is formed at a tip of the inner flap.
PCT/JP2018/017913 2017-05-10 2018-05-09 Packaging box WO2018207814A1 (en)

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JP2020075765A (en) * 2018-11-01 2020-05-21 レンゴー株式会社 Packaging box
JP2020104936A (en) * 2018-12-28 2020-07-09 株式会社トーモク Packaging box
JP2020172275A (en) * 2019-04-09 2020-10-22 雪印メグミルク株式会社 carton
JP2021123391A (en) * 2020-02-05 2021-08-30 王子ホールディングス株式会社 Packing box
JP2021123361A (en) * 2020-02-03 2021-08-30 王子ホールディングス株式会社 Packaging box
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JP2020075765A (en) * 2018-11-01 2020-05-21 レンゴー株式会社 Packaging box
JP2020104936A (en) * 2018-12-28 2020-07-09 株式会社トーモク Packaging box
JP7166914B2 (en) 2018-12-28 2022-11-08 株式会社トーモク packaging box
US20220161962A1 (en) * 2019-03-26 2022-05-26 Anheuser-Busch Inbev S.A. Tear strip for secondary packages
JP2020172275A (en) * 2019-04-09 2020-10-22 雪印メグミルク株式会社 carton
JP2021123361A (en) * 2020-02-03 2021-08-30 王子ホールディングス株式会社 Packaging box
JP7475878B2 (en) 2020-02-03 2024-04-30 王子ホールディングス株式会社 Packaging box
JP2021123391A (en) * 2020-02-05 2021-08-30 王子ホールディングス株式会社 Packing box
JP2021123420A (en) * 2020-02-05 2021-08-30 王子ホールディングス株式会社 Packing box

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