JP4679227B2 - Cardboard packaging box - Google Patents

Description

  The present invention relates to a corrugated packaging box having an improved handle portion.

As a conventional packaging box made of this kind of corrugated cardboard, for example, the one disclosed in Patent Document 1 is known. In the packaging box disclosed in Patent Document 1, a handle hole is formed by pushing a tongue piece formed by making a score line into a side plate portion in an upright state, and the tip of the tongue piece is formed. Is in contact with the inner surface of the top plate to form a triangular structure having a triangular cross section by the tongue piece, the side plate portion, and the top plate. And a user carries a packaging box by inserting a hand in a handle hole and holding a triangular structure.
JP 2002-293321 A

  In the configuration of the packaging box disclosed in Patent Document 1 described above, the user carries the packaging box by inserting the hand into the handle hole and gripping the triangular structure. When carrying the packaging box, the load is applied to the outside of the triangular structure due to the load of the packaging box (including the packaged item), and tearing occurs from both ends of the base end of the tongue piece, making it difficult to carry after that There was a problem of coming.

  An object of the present invention is to solve such a problem and to provide a corrugated packaging box in which the strength of the handle portion is increased.

  The packaging box made of corrugated cardboard according to claim 1 of the present invention is made of corrugated cardboard as a material, and is provided with two sets of opposing side plates 2, 2, 3, 3 and lower ends of the opposing side plates 2, 2, 3, 3 Consecutive bottom plate forming flaps 4, 4, 5, 5 and upper lid forming flaps 6, 6, 7, 7 connected to the upper ends of the opposing side plates 2, 2, 3, 3 are provided. It is a packaging box 1 having a rectangular planar shape, and a handle hole 12 is formed by pushing a tongue piece 11 formed by making a score line 10 inward in the vicinity of the upper end of at least one side plate 2. The fold line 13 of the tongue piece 11 is formed without being connected to the upper end of the cut line 10, and the tongue piece 11 is not pushed into the central portion of the tongue piece 11 and is flush with the side plate 2. A substantially bowl-shaped cut line 14 is formed, and below this cut line 14 Is formed between the side plate 2 and the upper cover plate forming flap 6 at the upper end of the side plate 2. And the tongue 11 surrounded by the cut line 10 is pushed inward with the folding line 13 as the center of rotation, so that the tip end portion 11a of the bending line 15 is surrounded by the cut line 14 11b. Are bent with respect to the base side portion 11c of the tongue piece 11 surrounding the cut line 14 with the folding line 15 as the center of rotation, and are in surface contact with the inner surface of the upper lid plate forming flap 6 connected to the upper end of the side plate 2, simultaneously. The tip of the portion 11b surrounded by the cut line 14 is in contact with the connecting line between the side plate 2 and the upper lid plate forming flap 6 at the upper end thereof, and the base portion 11c of the tongue piece 11 is inclined with respect to the side plate 2 Characterized by being configured such that.

  The packaging box made of corrugated cardboard according to claim 2 is made of corrugated cardboard as a material, and is connected to two sets of opposing side plates 2, 2, 3, and 3 and the lower ends of the opposing side plates 2, 2, 3, and 3. The bottom plate forming flaps 4, 4, 5, 5 and the upper lid forming flaps 6, 6, 7, 7 connected to the upper ends of the opposing side plates 2, 2, 3, 3 have a planar shape. It is a rectangular packaging box 1, and a tongue piece 17 formed by inserting a score line 16 into an upper lid plate forming flap 6 connected to the upper end of at least one side plate 2 on the short side is pushed downward inward. As a result, a handle hole 18 is formed, both ends of the cut line 16 are not connected, and a fold line 19 of the tongue piece 17 is formed. This fold line 19 is connected to the upper lid plate forming flap 6 and one side. The tip of the tongue piece 17 is connected to the side plate 2 side of the A substantially scissor-shaped cut line 20 is formed in a state of being flush with the upper cover plate forming flap 6 without being pushed into the central portion of the tongue piece 17 and facing the opposite side. A fold line 21 is formed between both ends of the line of sight 20 and the cut line 16, and the fold line 19 and the fold line 21 are formed on the upper cover plate forming flap 6 and the upper cover plate forming flap 6. The distal end portion 17a of the folding line 21 is pushed inwardly with the tongue piece 17 surrounded by the cut line 16 being inward with the folding line 19 as the center of rotation. The portion 17b surrounded by the cut line 20 is bent with respect to the base portion 17c of the tongue piece 17 surrounding the cut line 20 with the bending line 21 as a rotation center, and is connected to the flap 6 for forming the upper lid plate. The tip of the portion 17b that is in surface contact with the inner surface of the side plate 2 and is surrounded by the cut line 20 is in contact with the connecting line between the upper lid plate forming flap 6 and one side plate 2, and the base side of the tongue piece 17 The portion 17c is configured to be inclined with respect to the upper lid plate forming flap 6.

  The corrugated cardboard packaging box according to claim 3 is the corrugated cardboard packaging box according to claim 2, wherein the opposing side plates 3, 3 on the long side are located at the position of the handle hole 18 formed by making the score line 16. A perforated cut line 22 is inserted into the upper lid plate forming flaps 7 and 7 that are connected to the upper ends of the side plates 2 and 2 on the short side and are connected to the upper ends of the upper lid plate 6 and 6. Thus, a cutout hole 23 slightly larger than the handle hole 18 is formed.

  The corrugated cardboard packaging box according to claim 4 is the corrugated cardboard packaging box according to claim 2, wherein the opposing side plates 3, 3 on the long side are located at the position of the handle hole 18 formed by making the score line 16. A cutout hole slightly larger than the handle hole 18 in the upper cover plate forming flaps 7, 7 that is connected to the upper ends of the side plates 2, 2 on the short side and that overlaps the upper cover plate forming flaps 6, 6. 23 is formed.

  As described above, in the cardboard packaging box according to claim 1 of the present invention, when the packaging box 1 is carried, the hand inserted into the handle hole 12 formed in the side plate 2 is the base side portion of the tongue piece 11. By maintaining the state in contact with 11c and the distal end portion 11a, the base portion 11c of the tongue piece 11 is inclined with respect to the side plate 2, and the distal end portion 11a of the tongue piece 11 is formed as an upper lid plate. The front end of the portion 11b that is in surface contact with the inner surface of the flap 6 and surrounded by the cut line 14 is in contact with the connecting line between the side plate 2 and the upper cover plate forming flap 6 at its upper end, and the base side portion of the tongue piece 11 Even if a force that warps outward is applied to the base of 11c, that is, a portion surrounded by the cut line 14 even if a force in the direction of pushing the side plate 2 portion above the base of the base portion 11c of the tongue piece 11 is applied inward. The tip of 11b is connected to the side plate 2 The side plate 2 may be damaged near the base of the base portion 11c of the tongue 11 because the connecting line with the upper cover plate forming flap 6 is strongly abutted while applying force outward from the inside. The strength of the handle can be increased.

  Further, the corrugated packaging box according to claim 2 has a handle hole 18 formed by pushing a tongue piece 17 formed by inserting a score line 16 into the upper cover plate forming flap 6 inward downward. In this case as well, the strength of the handle portion can be increased in this case as well.

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, the first embodiment shown in FIGS. 1 to 6 will be described. Reference numeral 1 denotes a rectangular packaging box made of a corrugated cardboard material and having a rectangular shape (or a square shape). Side plates 2, 2, 3, 3; bottom plate forming flaps 4, 4, 5, 5 connected to lower ends of the opposed side plates 2, 2, 3, 3; and opposed side plates 2, 2, 3, 3 And upper lid forming flaps 6, 6, 7, and 7 connected to the upper end of the upper lid. Specifically, the width of one opposing side plate 2, 2 out of the two sets of opposing side plates 2, 2, 3, 3 is set shorter than the width of the other opposing side plate 3, 3. In the bottom plate forming flaps 4, 4, 5 and 5, the bottom plate forming flaps 4 and 4 connected to the lower ends of the opposing side plates 2 and 2 on the short side are first bent, and then facing the long side. The bottom plate forming flaps 5, 5 connected to the lower ends of the side plates 3, 3 are bent so that the end surfaces of the bottom plate forming flaps 5, 5 are in contact with each other, and the bottom plate forming flaps 4, 5 are joined together with an adhesive. To form a bottom plate.

  After the bottom plate is formed, six plastic bottles 9 containing 2 liters of contents such as drinking water, for example, so-called 2 liter plastic bottles 9 are stored in the packaging box 1 as flaps 6 for forming the upper lid. Close 6, 7, 7. The closing order of the upper lid forming flaps 6, 6, 7 and 7 is the same as that of the bottom plate forming flaps 4, 4, 5 and 5, and is connected to the upper ends of the opposing side plates 2 and 2 on the short side. The cover plate forming flaps 6 and 6 are bent first, and then the upper cover plate forming flaps 7 and 7 connected to the upper ends of the opposing side plates 3 and 3 on the long side are bent to form the upper cover plate forming flap 7. The upper lid is formed by joining the upper and lower end plate forming flaps 6 and 7 with an adhesive with the end faces of the front end portions of the. The plastic bottle 9 is provided with a cap 9a that can be freely opened and closed at the upper end, and the shoulder portion 9b of the plastic bottle 9 connected to the cap 9a mounting position is inclined downwardly toward the trunk portion 9c. Yes.

  By the way, a handle hole 12 is formed by pushing a tongue piece 11 formed by making a score line 10 in the vicinity of the upper end of the opposing side plates 2 and 2 on the short side. Specifically, the handle hole 12 formed by pushing the tongue piece 11 surrounded by the cut line 10 inwardly is more vertically located than a general handle hole provided in a packaging box as disclosed in Patent Document 1 above. Large, the upper end of the score line 10 is not connected, a fold line 13 of the tongue piece 11 is formed, and the tongue piece 11 is not pushed into the central portion of the tongue piece 11 in a state of being substantially flush with the side plate 2. A cut line 14 is formed in which both sides extend downward, and a fold line 15 is formed between the lower end of the cut line 14 and the cut line 10. The fold line 13 and the fold line 15 are parallel to the continuous lines of the side plate 2 on the short side and the upper lid plate forming flaps 6, 6 on the upper side of the side plate 2. And when carrying the packaging box 1 in the packaging state which accommodated six PET bottles 9 containing 2 liters of contents in the packaging box 1 and closed the upper lid forming flaps 6, 6, 7, and 7, By pushing the tongue piece 11 surrounded by the cut line 10 inward with the folding line 13 as the center of rotation, the tip of the tongue piece 11 is folded inside the packaging box 1 while abutting against the shoulder 9b of the plastic bottle 9. As a result, the tip end portion 11a with respect to the fold line 15 is bent with respect to the base portion side portion 11c of the tongue piece 11 surrounding the cut line 14 with the fold line 15 as a rotation center integrally with the portion 11b surrounded by the cut line 14. Surface contact is made with the inner surface of the upper lid plate forming flap 6 connected to the upper end of the side plate 2 on the short side. At the same time, the tip of the portion 11b surrounded by the cut line 14 comes into contact with a continuous line between the side plate 2 and the upper cover plate forming flap 6 at its upper end. The base side portion 11c of the tongue piece 11 folded in this manner is inclined with respect to the side plate 2. That is, when the packaging box 1 is carried, the tongue inserted into the handle hole 12 formed in the side plate 2 is held in contact with the base portion 11c and the tip portion 11a of the tongue piece 11, thereby The base portion 11c of the piece 11 is inclined with respect to the side plate 2, and the tip end portion 11a of the tongue piece 11 is in surface contact with the inner surface of the upper lid plate forming flap 6 and is surrounded by the cut line 14b. The tip of the abutment abuts against the connecting line between the side plate 2 and the upper lid plate forming flap 6 at the upper end thereof, and even if a force of bending outward is applied to the base of the base side portion 11c of the tongue piece 11, that is, the tongue piece 11 Even if a force is applied to push the side plate 2 portion above the base of the base side portion 11c inward, the tip of the portion 11b surrounded by the cut line 14 is the side plate 2 and the upper lid plate forming flap 6 at the upper end. Inside the connection line Does not like the side plate 2 is broken at the base near the proximal portion 11c of the tongue 11 so abuts strongly while applying a force to al outwardly.

  In the first embodiment, the plastic bottle 9 having the shoulder portion 9b inclined downward is accommodated in the packaging box 1, but the above-mentioned plastic bottle 9 is used as an article to be packaged. The side plate 2 is not limited as long as it has a storage state in which a space in which the tongue piece 11 can be pushed inside the vicinity of the upper end of the side plate 2 in which the handle hole 12 is formed. When the tongue piece 11 is pushed into the inside, the tip end portion 11a of the tongue piece 11 may be bent with respect to the base side portion 11c while pushing the portion 11b surrounded by the cut line 14 with a finger.

  Further, in the first embodiment, the handle hole 12 is formed in the vicinity of the upper end of the opposing side plates 2 and 2 on the short side, but the handle hole 12 is formed only on one side plate 2. It may be. That is, it can be applied to a packaging box that is held by one hand.

  Next, the second embodiment shown in FIGS. 7 to 10 will be described. In the second embodiment, instead of providing a handle hole in the side plate 2 on the short side as in the first embodiment. A handle hole 18 is formed by pushing the tongue piece 17 formed by inserting a score line 16 into the upper lid plate forming flap 6 connected to the upper end of one side plate 2 on the short side side downward. It is like that. Specifically, both ends of the cut line 16 are not connected to each other, and a fold line 19 of the tongue piece 17 is formed. The fold line 19 is directed to the continuous line side of the upper cover plate forming flap 6 and the one side plate 2; A cut line 16 is formed so that the tip of the tongue piece 17 faces the side opposite to the continuous line. In addition, the tongue piece 17 is not pushed into the center portion of the tongue piece 17, and is cut substantially in the shape of a plane in the same plane as the upper cover plate forming flap 6, and both sides thereof extend to the front end side of the tongue piece 17. Are formed, and a fold line 21 is formed between both ends of the score line 20 and the score line 16. The fold line 19 and the fold line 21 are parallel to a continuous line between the upper lid plate forming flap 6 and one side plate 2 connected to the upper lid plate forming flap 6. Then, the tongue piece 17 surrounded by the cut line 16 is pushed inward with the folding line 19 as the rotation center, and the distal end portion 17a of the bending line 21 rotates the folding line 21 integrally with the part 17b surrounded by the cut line 20. It is bent with respect to the base side portion 17c of the tongue piece 17 surrounding the cut line 20 as the center, and is brought into surface contact with the inner surface of the side plate 2 on the short side connected to the flap 6 for forming the upper lid plate. The front end of the enclosed portion 17b can be brought into contact with a continuous line between the upper lid plate forming flap 6 and the side plate 2. The base portion 17c of the tongue piece 17 folded in this manner is inclined with respect to the upper lid plate forming flap 6. That is, the handle according to the second embodiment is oriented in the horizontal direction while the handle according to the first embodiment is oriented in the vertical direction. Further, in the second embodiment, at the position of the handle hole 18 formed by making the score line 16, the upper lid plate forming flap provided continuously with the upper ends of the opposing side plates 3, 3 on the long side. A cutout hole 23 slightly larger than the handle hole 18 can be formed by inserting a perforated cut line 22 into the holes 7 and 7. When the packaging box 1 is carried, the cutout hole 23 is formed and the handle hole 18 is formed. Can be formed. Alternatively, the upper cover plate forming flaps 7 and 7 may be formed with a punch hole from the beginning at the position of the handle hole 18 without the perforated cut line 22 being inserted. Although the packaging box of the second embodiment is a one-handed packaging box, a similar handle hole 18 is also formed in the upper lid plate forming flap 6 connected to the upper end of the other side plate 2 on the short side. You may do it.

  The shape of the handle hole 12 formed by the cut line 10 and the cut line 16 formed by the cut line 10 of the two embodiments described above is inclined so as to narrow toward the folding lines 13 and 19. However, as shown in FIG. 11, it is also possible to form a handle hole by a rectangular cut line 25 in which four corners 24 are rounded. The configuration inside the score line 25 is the same as in the two embodiments.

It is an expanded view of the corrugated packaging box in the 1st Embodiment of this invention. It is a perspective view which shows the state in the middle of the assembly of the packaging box. It is a perspective view which shows the state which accommodated the plastic bottle in the packaging box. It is a perspective view which shows the packing state by the packaging box. It is a principal part expansion perspective view which shows the state which inserted the hand in the handle hole of the packaging box. It is a principal part expanded sectional view which shows the state which inserted the hand into the handle hole of the packaging box and folded the tongue piece. It is an expanded view of the cardboard packaging box in the 2nd Embodiment of this invention. It is a perspective view which shows the packing state by the packaging box. It is a principal part expansion perspective view which shows the state which inserted the hand in the handle hole of the packaging box. It is a principal part expanded sectional view which shows the state which inserted the hand into the handle hole of the packaging box and folded the tongue piece. It is a principal part enlarged view which shows the modification of the handle hole of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packaging box 2,3 Side plate 4,5 Bottom plate formation flap 6,7 Upper lid formation flap 9 PET bottle 10 Cut line 11 Tongue piece 11a Tip side part 11b Part surrounded by cut line 11c Base side part 12 Handle hole 13 Bending Line 14 Cut line 15 Fold line 16 Cut line 17 Tongue piece 17a Tip side part 17b Part 17c surrounded by the cut line Base side part 18 Handle hole 19 Fold line 20 Cut line 21 Fold line 22 Perforated cut line 23 Cut hole 24 Corner 25 cut line

Claims (4)

Made of corrugated cardboard as a material, two sets of opposing side plates 2, 2, 3, 3 and bottom plate forming flaps 4, 4, 5, 5 connected to the lower ends of the opposing side plates 2, 2, 3, 3 And a flat packaging box 1 having upper lid forming flaps 6, 6, 7, 7 connected to the upper ends of the opposing side plates 2, 2, 3, 3, and having at least one A handle hole 12 is formed in the vicinity of the upper end of the side plate 2 by pushing the tongue piece 11 formed by inserting the cut line 10 inward, and the upper end of the cut line 10 is not connected. A bending line 13 of the tongue piece 11 is formed, and a substantially scissor-shaped cut line 14 is formed in the center portion of the tongue piece 11 in a state flush with the side plate 2 without pushing the tongue piece 11. A fold line 15 is formed between the lower end of the cut line 14 and the cut line 10. The fold line 13 and the fold line 15 are parallel to a continuous line between the side plate 2 and the upper cover plate forming flap 6 at the upper end of the side plate 2, and are surrounded by the cut line 10. By pushing the tongue piece 11 inwardly with the fold line 13 as the center of rotation, the distal end portion 11a of the fold line 15 is integrated with the portion 11b surrounded by the sever line 14 so that the crease line 15 is centered on the fold line 15 as the center of rotation. Bent to the base side portion 11c of the surrounding tongue piece 11, is in surface contact with the inner surface of the upper lid plate forming flap 6 connected to the upper end of the side plate 2, and at the same time, the tip of the portion 11b surrounded by the score line 14 is the side plate 2 A corrugated cardboard having a structure in which a base side portion 11c of the tongue piece 11 is inclined with respect to the side plate 2 in contact with a continuous line with the upper lid plate forming flap 6 at the upper end. Packaging box. Made of corrugated cardboard as a material, two sets of opposing side plates 2, 2, 3, 3 and bottom plate forming flaps 4, 4, 5, 5 connected to the lower ends of the opposing side plates 2, 2, 3, 3 And a flat packaging box 1 having upper lid forming flaps 6, 6, 7, and 7 connected to the upper ends of the opposing side plates 2, 2, 3 and 3, and the short side A handle hole 18 is formed by pressing the tongue piece 17 formed by inserting a score line 16 into the flap 6 for forming the upper lid plate connected to the upper end of at least one side plate 2 inward downward. Both ends of the cut line 16 are not connected to each other, and a fold line 19 of the tongue piece 17 is formed. The fold line 19 is directed to the continuous line side of the upper cover plate forming flap 6 and the one side plate 2; The tip of the tongue piece 17 faces away from the continuous line, and is A substantially bowl-shaped cut line 20 is formed in a state flush with the upper cover plate forming flap 6 without pushing the tongue piece 17, and is bent between both ends of the cut line 20 and the cut line 16. A line 21 is formed, and the folding line 19 and the folding line 21 are parallel to a continuous line between the upper lid plate forming flap 6 and one side plate 2 connected to the upper lid plate forming flap 6. When the tongue piece 17 surrounded by the cut line 16 is pushed inward with the folding line 19 as a rotation center, the tip end portion 17a is bent more integrally with the part 17b surrounded by the cut line 20 than the folding line 21. 21 is bent with respect to the base portion 17c of the tongue piece 17 surrounding the score line 20 around the cut line 20, and is in surface contact with the inner surface of one side plate 2 connected to the flap 6 for forming the upper lid plate. The tip of the portion 17b surrounded by the line of sight 20 abuts the continuous line between the upper lid plate forming flap 6 and the one side plate 2, and the base portion 17c of the tongue piece 17 is against the upper lid plate forming flap 6. A cardboard packaging box characterized by being configured to be inclined. At the position of the handle hole 18 formed by making the cut line 16, an upper lid plate forming flap connected to the upper ends of the opposing side plates 3, 3 on the long side and connected to the upper ends of the side plates 2, 2 on the short side A cutout hole (23) slightly larger than the handle hole (18) is formed by inserting a perforated cut line (22) in the upper lid plate forming flaps (7,7) overlying (6,6). The cardboard packaging box described. At the position of the handle hole 18 formed by making the cut line 16, an upper lid plate forming flap connected to the upper ends of the opposing side plates 3, 3 on the long side and connected to the upper ends of the side plates 2, 2 on the short side A corrugated packaging box according to claim 2, wherein a cutout hole (23) slightly larger than the handle hole (18) is formed in the upper lid plate forming flaps (7,7) overlapping with the upper cover plate (6,6).

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