JP7294096B2 - Packaging boxes and blanks of said packaging boxes - Google Patents

Description

TECHNICAL FIELD The present invention relates to a packaging box and a blank of the packaging box in which packaged goods can be quickly displayed.

2. Description of the Related Art Conventionally, packaging boxes such as corrugated cardboard boxes (hereinafter also simply referred to as packaging boxes) have been widely used for packaging and containing articles in order to prevent them from being soiled or damaged in the process of distributing articles. Goods to be distributed are displayed at stores as commodities, for example, and it is generally required that this display be performed efficiently.

Therefore, for example, in Patent Document 1, a break line is provided on the top surface and side surfaces of the packaging box to form an opening from which the product can be taken out, so that the product can be stored in the packaging box. As a result of being able to display the product in the shop, it is disclosed that the efficiency of product display is improved.

Utility Model Registration No. 3206139

However, in the packaging box described in Patent Document 1, a break start portion for starting breakage of the break line is provided on the break line. Since the degree of insertion varies depending on the user, the breaking force may cause wrinkles and creases on the outer surface of the opening adjacent to the break start part, and the outer surface of the opening may be damaged by the consumer. If it is provided in a visible position, it may be judged that the appearance of the packaging box after opening and displaying is not good.

In addition, in the packaging box described in Patent Document 1, the breakage initiation portion is provided on the side surface of the body of the packaging box. When the user breaks the break line from the break start part, for example, the finger inserted from the break start part or the surface part of the break start part pushed toward the inside of the packaging box comes into contact with the stored product and damages the product. There is a risk.

An object of the present invention is to improve the appearance of the packaging box after opening, and to reduce the possibility of damaging the contained goods when breaking the break line using the break initiation part. To provide blanks for boxes and packaging boxes.

A packaging box according to the present invention is a packaging box having a body portion for containing an article and a top portion covering a top surface of the body portion, wherein the top portion and a side portion of the body portion continuing thereto are broken. and a break start portion located at a position away from the break line within a region where the take-out opening is formed in the surface portion constituting the top portion It is characterized by

A packaging box blank according to the present invention is a rectangular first fold line having mutually parallel first and second fold lines and a pair of mutually parallel third fold lines orthogonal to said first fold lines. a plane portion, a fifth fold line parallel to the first fold line, and a pair of mutually parallel fourth fold lines perpendicular to the first fold line; It has a second surface portion connected via lines and a pair of mutually parallel sixth bending lines orthogonal to the second bending lines, and is connected to the first surface portion via the second bending lines. a rectangular third surface, an eighth folding line parallel to the fifth folding line, and a pair of mutually parallel seventh folding lines orthogonal to the fifth folding line; a fourth surface portion connected via the fifth bending line; a pair of first outer flap portions connected to the first surface portion via the pair of third bending lines; a pair of first inner flap portions respectively connected via a pair of fourth folding lines; and a pair of second inner flap portions respectively connected to the third surface portion via the pair of sixth folding lines; a pair of second outer flap portions connected to the fourth surface portion via the pair of seventh folding lines, respectively, and a take-out opening formed by breaking when the blank is assembled into the packaging box. is formed in one of the pair of first outer flap portions and the first face portion connected thereto, and/or in one of the pair of second outer flap portions and connected thereto One of the pair of first outer flap portions and/or the pair of second outer flap portions which are formed on the fourth surface portion and whose free edges are butted against each other on the top surface side of the packaging box It is characterized in that a break start portion is provided so as to be arranged at a position away from the break line within the region where the take-out opening is formed.

According to the present invention, the breakage starting portion is provided in the region corresponding to the take-out opening of the surface portion of the packaging box so as not to be in contact with the breaking line, and is spaced apart from the surface portion outside the opening. , When the break line is broken using the break start part, the breaking force is less likely to be transmitted to the surface portion outside the opening, and the surface portion outside the opening is less likely to deform, resulting in the appearance of the packaging box after opening ( appearance) can be improved. In addition, according to the present invention, since the surface portion of the packaging box facing the space where the article does not exist is provided with the breakage start portion, when the breakage line is broken using the breakage start portion in order to open the packaging box, As a result, it becomes difficult for the user's finger or the surface part separated by breakage to come into contact with the accommodated article, and as a result, it is possible to suppress damage to the accommodated article when the package is opened.

1 is a perspective view of a packaging box after opening according to one embodiment of the present invention; FIG. 1 is a plan view of a blank developed from a packaging box according to an embodiment of the present invention; FIG. 1 is a perspective view of a packaging box before opening according to one embodiment of the present invention; FIG. 4 is a front view of the packaging box shown in FIG. 3; FIG. FIG. 3 is an enlarged view of the zipper formed on the blank shown in FIG. Zipper Z11 formed in the corresponding portion, (b) zipper Z13 formed along the curve of the U-shaped breaking line C1, and (c) zipper Z31 formed in the first inner flap portion on the top side. indicates FIG. 10 is a perspective view of the packaging box in the middle of opening according to one embodiment of the present invention, in which the breakage initiation portion provided at the free end of the outer flap portion on the top surface side of the packaging box is grasped with fingers and upward It is a figure which shows the state to pull up. FIG. 2 is a perspective view of the packaging box in the middle of opening according to one embodiment of the present invention, showing part of a pair of outer flap portions on the top surface side of the packaging box and a pair of surface portions respectively continuous with the pair of outer flap portions; It is a figure which shows the state after each breaking and removing a part along a breaking line.

DETAILED DESCRIPTION OF THE INVENTION Embodiments for carrying out the present invention will be described in detail below with reference to FIGS. 1 to 7. FIG. However, the present invention is not limited to this embodiment.

In the description of this specification and the scope of claims, the terms "top surface" and "bottom surface" are referred to as referring to the surface itself of the article storage space defined by the packaging box. However, it goes without saying that these terms are for convenience only and do not define absolute positions in the direction of gravity. The same applies to terms such as "top" and "bottom". "Bottom" is referred to as referring to the substantial portion of the packaging box that is located at the "bottom". On the other hand, the “top portion” refers to a portion including the top surface portion, which is a substantial portion covering the top surface, and additional portions as necessary.

In addition, in the description of this specification and claims, the term "rectangle" includes not only rectangles but also squares, and the term "substantially rectangular parallelepipeds" includes cuboids as well as rectangular parallelepipeds.

Furthermore, in the description of this specification and the scope of claims, the term “package” refers to a packaging box in which an article is housed, particularly after the article is housed and packed in the packaging box and before opening. say something

<Construction of packaging box>
FIG. 1 shows a perspective view of a packaging box 10'' after opening according to one embodiment of the present invention, and FIG. 2 shows a plane of a blank 10B in which the packaging box 10 (see FIG. 3) according to this embodiment is unfolded. Figure shows. 3 shows a perspective view of the packaging box before opening according to the present embodiment, and FIG. 4 is a front view of the packaging box shown in FIG. In FIG. 3, the articles 50 housed in the packaging box 10 are omitted for convenience of explanation.

The packaging body according to this embodiment is configured by housing an article (12 so-called gusset-type coffee bean bags having gusset portions on both sides in this embodiment) in a packaging box 10 (the article is 50). However, in the present invention, the article 50 may be any article as long as the effect of the present invention of not damaging the contained articles when unsealing and improving the appearance of the opening of the packaging box is exhibited. , the shape of the article 50 is not limited to a gusset shape.

The packaging box 10 according to this embodiment has a substantially rectangular parallelepiped shape, and as shown in FIG. . Specifically, the packaging box 10 is, as shown in FIGS. 14 four rectangular face portions, a pair of first inner flap portions (the code on the top side is 22a, the code on the bottom side is 22b) and a pair of second inner flap portions (the code on the top side is 23a, 23b on the bottom side), a pair of first outer flaps (31a on the top side and 31b on the bottom side) and a pair of second outer flaps ( 34a on the top side and 34b on the bottom side). In the packaging box 10 according to this embodiment, the fourth surface portion 14, the second surface portion 12, the first surface portion 11, and the third surface portion 13 are continuous in this order.

In this embodiment, as shown in FIG. 3, the packaging box 10 is arranged such that the free edge of the first outer flap portion 31b on the bottom side and the free edge of the second outer flap portion 34b are butted and adhered with tape T3. , the free edge of the first outer flap portion 31a on the top surface side and the free edge of the second outer flap portion 34a are butted against each other, and from the vicinity of the left and right ends of the butted portions, the upper surfaces of the second and third surface portions 12 and 13 It is sealed by adhering with tapes T1 and T2 respectively over the parts. The present invention is not limited to this, and without using tapes T1-T3, the proximal side of the first inner flap portion 22a (from the break line C3 described later) and the second inner flap portion 23a (the break line described later) C4), both side edges of the first outer flap portion 31a (from a breaking line C1 described later) and both side edges of the second outer flap portion 34a (from a breaking line C2 described later) are bonded together. It may be adhered with an agent (for example, hot melt).

The first surface portion 11 has a first edge L1 and a second edge L2 that are parallel to each other, and a pair of third edges L3a and L3b that are parallel to each other and orthogonal to the first edge L1.

The second surface portion 12 has a fifth edge L5 parallel to the first edge L1 and a pair of mutually parallel fourth edges L4a and L4b orthogonal to the first edge L1 and extending from the first edge L1. is bent at a right angle.

The third surface portion 13 has a pair of mutually parallel sixth edges L6a and L6b orthogonal to the second edge L2, extends from the second edge L2, and is bent at right angles to face the second surface portion 12. are doing.

The fourth surface portion 14 has an eighth edge L8 parallel to the fifth edge L5, and a pair of mutually parallel seventh edges L7a and L7b orthogonal to the fifth edge L5. and faces the first surface portion 11 .

A pair of first inner flap portions 22a and 22b extend from the second surface portion 12, respectively. Specifically, the pair of first inner flap portions 22a and 22b extend from the pair of fourth edge sides L4a and L4b of the second surface portion 12, respectively, and are bent at right angles to face each other. A pair of second inner flap portions 23a and 23b extend from the third surface portion 13 respectively. Specifically, the pair of second inner flap portions 23a and 23b extend from the pair of sixth edge sides L6a and L6b of the third surface portion 13, respectively, and are bent at right angles to face each other.

A pair of first outer flap portions 31a and 31b extend from the first surface portion 11 respectively. Specifically, the pair of first outer flap portions 31a and 31b extend from the pair of third edge sides L3a and L3b of the first surface portion 11, respectively, and are bent at right angles to face each other. A pair of second outer flap portions 34a and 34b extend from the fourth surface portion 14, respectively. Specifically, the pair of second outer flap portions 34a and 34b extend from the pair of seventh edge sides L7a and L7b of the fourth surface portion 14, respectively, and are bent at right angles to face each other.

In the present invention, the packaging box 10 is provided with take-out openings O1 and O2 by breaking the top portion 1 and the side portions of the body portion 2 (in this embodiment, the first side portion 11 and the fourth side portion 14) connected thereto. are formed, and areas A ₀₁ and A 02 of the surface portion forming the top 1 where the extraction openings O1 and _O2 are formed, and are arranged at positions apart from the break lines C1 and C2. rupture initiation portions S1 and S2. In this embodiment, the rupture starting portions S1 and S2 are provided on the top surface portion of the packaging box 10 . More specifically, in the present embodiment, the top surface portion of the packaging box 10 includes a pair of first inner flap portion 22a, second inner flap portion 23a, and a pair of first outer flap portion 31a, second outer flap portion 34a. The break start portions S1 and S2 are provided on the free edge sides of the first outer flap portion 31a and the second outer flap portion 34a, respectively. However, in the present invention, this is not the case. It may be formed in any place.

5A and 5B are enlarged views of the zipper Z11 formed on the blank 10B shown in FIG. A zipper Z11 formed at a portion corresponding to the vertical bar of the U-shaped breaking line C1 shown in FIG. indicates the zipper Z31 formed on the first inner flap portion 22a on the top surface side.

In this embodiment, as shown in FIGS. 1 to 3 and 5, the breaking line C1 is the first breaking element Za extending in the main direction of breaking and the breaking start portion S1 of the first breaking element Za. Zippers Z11 and Z12 provided by successively forming a plurality of broken pieces Zf1 consisting of a second breaking element Zb continuing to the proximal end and extending outwardly of the removal opening O1. respectively. Further, in the present embodiment, as shown in FIGS. 1 to 3 and 5, the breaking line C2 is defined by the first breaking element Za extending in the main breaking direction and the breaking start portion S2 of the first breaking element Za. A zipper Z21 provided by continuously forming a plurality of broken pieces Zf1 consisting of a second breaking element Zb continuing to the end on the proximal side of the zipper Z21 and extending toward the outside of the take-out opening O2. and Z22, respectively.

More specifically, in the present embodiment, as shown in FIGS. 1 to 3, the breaking line C1 is the first side portion 11 connected to the proximal end of the first outer flap portion 31a. A pair of broken-line zippers Z11 and Z12 are provided at positions corresponding to a pair of parallel vertical bars in the U shape. Moreover, in this embodiment, as shown in FIGS. A pair of breaking line zippers Z21 and Z22 are provided at positions corresponding to a pair of parallel vertical bars in the U shape.

With this configuration, as shown in FIG. 1, the second breaking element Zb of the breaking piece Zf1 extends toward the outside of the take-out openings O1 and O2. No sharp part is formed, and the shape is such that when the article 50 is taken out from the packaging box 10, it will not be damaged even if it comes into contact with the hand.

On the other hand, the zippers Z13 and Z14 at the bottom of the U-shape have the opposite shape to the zippers Z11 and Z12, and the zippers Z23 and Z24 at the bottom of the U-shape have the shapes of the zippers Z21 and Z22. is the opposite. As shown in FIG. 2, the zippers Z11-Z14 and Z21-24 provided at the breaking lines C1 and C2 of the U-shape are symmetrical with respect to the center line of the U-shape. In the present embodiment, the breaking line C1 is continuous to the first breaking element Za extending (in a curved line) in the main breaking direction and the ends of the first breaking element Za on both edge sides of the first surface portion 11, Further includes zippers Z13 and Z14 provided by continuously forming a plurality of broken pieces Zf2 consisting of a third breaking element Zc extending toward the inside of the take-out opening O1. Further, in the present embodiment, the breaking line C2 is continuous to the first breaking element Za extending (in a curved line) in the main breaking direction and the ends of the first breaking element Za on both edge sides of the fourth surface portion 14. and a third breaking element Zc extending toward the inside of the take-out opening O2.

With this configuration, the user cuts out by breaking the breaking lines C1 and C2, that is, a part of the first outer flap part 31a, a part of the first surface part 11, a part of the second outer flap part 34a, and a part of the second outer flap part 34a. When part of the four-sided portion 14 is pulled up above the packaging box 10, the zippers Z13 and Z14 can be successfully broken. Therefore, on the bottom side of the U-shape, as shown in FIG. 2, the form in which the branched portions of the zipper face toward the inside of the areas A ₀₁ and A ₀₂ forming the take-out openings O1 and O2 is faster to rupture. It is more preferable for breaking the wire.
Further, in the present embodiment, as shown in FIG. 2, breaking lines C3 and C4 formed in the first inner flap portion 22a and the second inner flap portion 23a include zippers Z31 and Z32 and zippers Z41 and Z42, respectively. . The shapes of the zippers Z31 and Z32, Z41 and Z42 provided at the breaking lines C3 and C4 are, as shown in FIG. symmetrical. Specifically, the breaking line C3 is continuous with the first breaking element Za extending in the main direction of breaking and the end portions of the first inner flap portion 22a on both edge sides, and the base end of the first inner flap portion 22a. and zippers Z31 and Z32 provided by successively forming a plurality of broken pieces Zf3 consisting of a fourth breaking element Zd extending toward the side. Further, the breaking line C4 is continuous with the first breaking element Za extending in the main direction of breaking and the end portions of the second inner flap portion 23a on both side edge sides, and extends toward the base end side of the second inner flap portion 23a. and zippers Z41 and Z42 provided by continuously forming a plurality of broken pieces Zf3 consisting of:

With this configuration, as shown in FIG. 1, the fourth breaking element Zd of the breaking piece Zf1 extends toward the base ends of the first inner flap portion 22a and the second inner flap portion 23a. , Z32, Z41, and Z42 are not formed with a sharp edge, and the article 50 is shaped so as not to be damaged even if the article 50 is taken out from the packaging box 10 by touching it with a hand.

Further, the fourth breaking element Zd of the breaking lines C3 and C4 may be configured to extend toward the free end side of the first inner flap portion 22a and the second inner flap portion 23a instead of the base end side thereof. According to this configuration, the portion to be cut off by the user breaking the breaking lines C3 and C4, that is, the free end side of the first inner flap portion 22a and the free end side of the second inner flap portion 23a are placed above the center of the packaging box 10. It is possible to successfully break the zippers Z31, Z32, Z41, Z42 when pulling up toward .

In the present invention, the shape of the zippers Z11-Z14, Z21-Z24, Z31, Z32, Z41, and Z42 is not limited to this, and various shapes can be adopted as long as the effects of the present invention are achieved.

In the present embodiment, as described above, the first inner flap portion 22a and the second inner flap portion 23a are formed with breaking lines C3 and C4 as shown in FIG. 2 and FIG. 7 described later. With the configuration of the break lines C3 and C4, by breaking the break start portions S1 and S2, a portion of the first outer flap portion 31a, a portion of the second outer flap portion 34a, a portion of the first surface portion 11, and After part of the fourth surface portion 14 is removed, the first inner flap portion 22a and the second inner flap portion 23a are broken along the breaking lines C3 and C4 to form the openings O1 and O2 in the packaging box 10. , the packaging box 10'' after opening functions as a tray, and the articles 50 can be taken out from the packaging box 10. - 特許庁

On the other hand, the remaining portion of the first inner flap portion 22a after breaking along the breaking line C3 and the remaining portion of the second inner flap portion 23a after breaking along the breaking line C4 are, as shown in FIG. It functions as a shoulder when stacking ''.

<Configuration of packaging box blank>
2, in the blank 10B in this embodiment, the second surface portion 12 is connected to the first surface portion 11 via the first edge (first bending line) L1, and the third surface portion 13 is connected to the first The fourth surface portion 14 is connected to the surface portion 11 via a second edge (second folding line) L2, and the fourth surface portion 14 is connected to the second surface portion 12 via a fifth edge (fifth folding line) L5. The fifth surface portion 15, which is a joint allowance, is connected to the fourth surface portion 14 via an eighth edge (eighth bending line) L8.

The pair of first inner flap portions 22a and 22b are connected to the second surface portion 12 via a pair of fourth edge sides (fourth folding lines) L4a and L4b, respectively, and the pair of second inner flap portions 23a and 23b are connected. are connected to the third surface portion 13 via a pair of sixth edges (sixth bending lines) L6a and L6b, respectively. The pair of first outer flap portions 31a, 31b are connected to the first surface portion 11 via a pair of third edges (third folding lines) L3a, L3b, respectively, and the pair of second outer flap portions 34a, 34b are connected to the fourth surface portion 14 via a pair of seventh edges (seventh folding lines) L7a and L7b, respectively.

The blank 10B according to this embodiment includes a joint margin 15 for connecting the third surface portion 13 and the fourth surface portion 14 . The joint allowance 15 is connected to the third surface portion 13 via an eighth edge (eighth folding line) L8. In addition, in the present invention, the joint allowance 15 may be connected from the fourth surface portion 14 instead of the third surface portion 13 .

The blank 10B in this embodiment has a pair of third folding lines L3a and L3b, a pair of fourth folding lines L4a and L4b, a pair of sixth folding lines L6a and L6b, and a pair of seventh folding lines L7a and L7b. , and the first folding line L1, the second folding line L2, the fifth folding line L5, and the eighth folding line L8 are set to become the vertical creases of the cardboard (so-called creases). ing. Note that the direction in which the ruled lines are formed is not limited to this, and may be formed in any direction as long as the object of the present invention can be achieved.

In the blank 10B of the packaging box 10 according to the present invention, when the blank 10B is assembled into the packaging box 10, the break lines C1 and C2 along which the take-out openings O1 and O2 are formed by breaking the blank 10B are aligned with the pair of first outer Formed on one 31a of the flap portions 31a and 31b and the first surface portion 11 connected thereto, and formed on one 34a of the pair of second outer flap portions 34a and 34b and the fourth surface portion 14 connected thereto, Formed on one 31a of the pair of first outer flaps 31a and 31b and one 34a of the pair of second outer flaps 34a and 34b, the free edges of which face each other on the top side of the box 10, In addition, the break start portion S1 is arranged at a position away from the break lines C1 and C2 within the areas A _O1 and A _O2 forming the take-out openings O1 and O2 among the surfaces constituting the packaging box 10, S2 is provided.

In this embodiment, as described above, the rupture starting portions S1 and S2 are provided in the first outer flap portion 31a and the second outer flap portion 34a. The rupture start portion S1 includes a ninth folding line L9 formed parallel to the free edge of the first outer flap portion 31a, and a first cut line CL11 formed so as to extend leftward and rightward from both ends of the ninth folding line L9. , and a second cut line CL12, and the fracture start portion S2 is formed by a tenth folding line L10 formed in parallel with the free edge of the second outer flap portion 34a, and left and right from both ends of the tenth folding line L10. It is composed of a third cut line CL21 and a fourth cut line CL22 which are formed so as to spread out.

<Procedure for opening the packaging box>
FIG. 6 is a perspective view of the packaging box 10 in the middle of opening according to the present embodiment, and shows the breakage starting portion S2 provided at the free end of the second outer flap portion 34a on the top surface side of the packaging box 10. 7 is a perspective view of the packaging box 10′ in the middle of opening according to the present embodiment, and a pair of outer flaps on the top surface side of the packaging box 10 according to the present embodiment. 2 shows a state after parts of the parts 31a, 34a and parts of the pair of surface parts 11, 14 respectively continuous with the pair of outer flap parts 31a, 34a are broken along the breaking lines C1, C2 and removed. It is a diagram. In FIGS. 6 and 7, the articles 50 housed in the packaging box 10 are omitted for convenience of explanation.

First, as shown in FIG. 6, the user pushes the breaking start portion S2 provided at the free end of the second outer flap portion 34a on the top surface side of the packaging box 10 to the inside of the packaging box 10 with the fingers of the hand H. When the packaging box 10 is grasped while being pushed in and folded along the tenth folding line L10 and pulled upward in the direction of the arrow shown in FIG. 6 to form a packaging box 10 as shown in FIG.

Then, when the user grips the breaking start portion S2 of the second outer flap portion 34a and pushes down the packaging box 10, the zippers Z21 and Z22 formed on the second outer flap portion 34a reach the other end. Further, when the user grasps the break start portion S2 of the second outer flap portion 34a and pulls it upwards of the packaging box 10, the zippers Z23 and Z24 formed on the second outer flap portion 34a are opened. The portion (that is, the area A _O1 forming the extraction opening O1) surrounded by the break line C2 and the free edge of the second outer flap portion 34a is removed. Subsequently, when breaking the breaking line C1 formed on the first outer flap portion 31a and the first surface portion 11, the user starts breaking the first outer flap portion 31a in the same manner as when breaking the breaking line C2. When the portion S1 is pulled while being gripped, the zippers Z11 and Z12 formed on the first outer flap portion 31a are broken, the zippers Z13 and Z14 formed on the first outer flap portion 31a are broken, and the breaking line C1 and the second flap portion 31a are broken. When the portion surrounded by the free edge of the first outer flap portion 31a (that is, the area A _O2 forming the take-out opening O2) is removed, the packaging box 10' as shown in FIG. 7 is obtained.

Next, the user, from the packaging box 10' in the state as shown in FIG. When the projecting portion of the inner flap portion 23a is broken along the breaking line C3 (that is, the zippers Z31 and Z32) and along the breaking line C4 (that is, the zippers Z41 and Z42), the packaging box 10' is opened as shown in FIG. It becomes the packaging box 10'' of a state.

Conventionally, in the distribution process of goods, packaging boxes such as corrugated cardboard boxes have been widely used for packaging and containing goods so that they are not soiled or damaged. In view of the fact that this display is generally required to be performed efficiently, for example, in Patent Document 1, by breaking, openings are formed on the top and sides of the packaging box from which the product can be taken out. It is disclosed that, by providing the lines, the products can be displayed in the shop while being housed in the packaging box, thereby improving the efficiency of product display.

However, in the packaging box described in Patent Document 1, a break start portion for starting breakage of the break line is provided on the break line. Since the degree of insertion varies depending on the user, the breaking force may cause wrinkles and creases on the outer surface of the opening adjacent to the break start part, and the outer surface of the opening may be damaged by the consumer. If it is provided in a visible position, it may be judged that the appearance of the packaging box after opening and displaying is not good.

In addition, in the packaging box described in Patent Document 1, the breakage initiation portion is provided on the side surface of the body of the packaging box. When the user breaks the break line from the break start part, for example, the finger inserted from the break start part or the surface part of the break start part pushed toward the inside of the packaging box comes into contact with the stored product and damages the product. There is a risk.

According to the present embodiment, the break start portions S1 and S2 are located within the regions A _O1 and A _O2 of the surface portion of the packaging box 10 corresponding to the take-out openings O1 and O2 and are not in contact with the break lines C1 and C2. , and is arranged away from the outer surface portion of the take-out openings O1 and O2. , O2, and the outer surfaces of the take-out openings O1 and O2 are less likely to deform, so that the appearance of the packaging box 10'' after opening can be improved. Further, according to the present embodiment, since the rupture start portions S1 and S2 are provided in the surface portion of the packaging box 10 facing the space where the article 50 does not exist, the rupture start portions S1 and S2 are provided in order to open the packaging box 10 . When the break lines C1 and C2 are broken using , it becomes difficult for the user's finger or the surface part separated by the break to contact the stored article 50, so that the stored article 50 is prevented from being damaged when unsealed. becomes possible.

Further, even if the break lines C1 and C2 are broken using the break start portions S1 and S2, the surroundings of the break start portions S1 and S2 located within the regions A ₀₁ and A ₀₂ corresponding to the take-out openings O1 and O2 are Since the regions A ₀₁ , A ₀₂ and their surroundings are removed from the packaging box 10 even if they are deformed, when the opened packaging box 10'' is displayed in a store, consumers will not be able to see the deformed breakage initiation portion S1. , S2 and its surroundings, it is possible to improve the appearance of the packaging box 10'' after opening.

<Others>
The present invention is not limited to the above-described embodiments and modified examples described here and there, and appropriate modifications and variations are possible without departing from the technical idea of the present invention.

For example, the packaging box 10 according to each of the above-described embodiments and modifications is a so-called A-type cardboard box, but the present invention is not limited to this, and the same configuration can be applied to other types of cardboard boxes.

In addition, the material of the packaging box 10 and the blank 10B according to each of the above-described embodiments and modifications is cardboard, but is not limited to this, and any material can be used as long as the effects of the present invention can be exhibited. It may be made of cardboard or plastic, for example.

Furthermore, the packaging box 10 according to each of the above-described embodiments and modifications may be box-manufactured by containing the article 50 using a box-manufacturing machine.

1 Top 2 Body 10 Packaging box 10B Blank 11 First surface 12 Second surface 13 Third surface 14 Fourth surface 15 Joint 22a, 22b First inner flap 23a, 23b Second inner flap 31a, 31b First first Outer Flap Portions 34a, 34b Second Outer Flap Portion 50 Articles A _O1 , A _O2 Areas C1, C2 Breaking Line L1 First Edge (First Folding Line)
L2 second edge (second fold line)
L3a, L3b Third edge (third folding line)
L4a, L4b Fourth edge (fourth folding line)
L5 Fifth edge (fifth fold line)
L6a, L6b 6th edge (6th folding line)
L7a, L7b 7th edge (7th folding line)
L8 8th edge (8th fold line)
L9 9th edge (9th fold line)
L10 10th edge (10th folding line)
O1, O2 Extraction openings S1, S2 Break start parts Z11-Z14, Z21-Z24, Z31, Z32, Z41, Z42 Zippers Zf1, Zf2, Zf3 Broken pieces Za First breaking element Zb Second breaking element Zc Third breaking element Zd fourth breaking element

Claims (5)

A packaging box having a body for containing an article and a top for covering the top surface of the body,
a break line along which an extraction opening is formed by breaking the top portion and the side surface portion of the body portion that is continuous with the top portion;
a break start portion located at a position away from the break line within a region where the take-out opening is formed in the surface portion constituting the top portion ;
The breakage starting portion is provided along at least one free edge of the pair of outer flap portions of the top surface portion of the packaging box configured by the pair of inner flap portions and the pair of outer flap portions. A packaging box characterized by: 2. The packaging box according to claim 1 , wherein the break start portion is also provided on the other of the pair of outer flap portions. The breaking line is continuous with a first breaking element extending in a main direction of breaking the breaking line, and an end of the first breaking element proximal to the breaking start portion, and is connected to the extraction opening. 3. A packaging box according to claim 1 or claim 2 , comprising a zipper provided by successively forming a plurality of tear strips comprising: The breaking lines are provided in a U-shape on the pair of side surface portions respectively connected to the base ends of the pair of outer flap portions so that the curved portions are arranged on the bottom portion side of the packaging box,
4. The packaging box according to claim 3 , wherein the zippers of the pair of breaking lines are provided at positions corresponding to the pair of parallel vertical bars in the U-shape. A packaging box blank according to claim 1 or claim 2 ,
a rectangular first surface having first and second mutually parallel folding lines and a pair of mutually parallel third folding lines orthogonal to the first folding lines;
It has a fifth folding line parallel to the first folding line, and a pair of mutually parallel fourth folding lines orthogonal to the first folding line, and the first surface portion is formed through the first folding line. a second surface portion connected by
a rectangular third surface portion having a pair of mutually parallel sixth bending lines orthogonal to the second bending lines and connected to the first surface portion via the second bending lines;
It has an eighth folding line parallel to the fifth folding line and a pair of mutually parallel seventh folding lines orthogonal to the fifth folding line. a fourth surface portion connected by
a pair of first outer flap portions respectively connected to the first surface portion via the pair of third folding lines;
a pair of first inner flap portions respectively connected to the second surface portion via the pair of fourth folding lines;
a pair of second inner flap portions respectively connected to the third surface portion via the pair of sixth folding lines;
a pair of second outer flap portions respectively connected to the fourth surface portion via the pair of seventh folding lines;
When the blank is assembled into the packaging box, a breaking line along which a take-out opening is formed by breaking is formed on one of the pair of first outer flap portions and the first surface portion connected thereto, and/or formed on one of the pair of second outer flap portions and the fourth surface portion connected thereto,
one of the pair of first outer flaps and/or one of the pair of second outer flaps whose free edges are butted against each other on the top surface side of the packaging box; one free edge of the pair of first outer flap portions and/or one free edge of the pair of second outer flap portions located within the region to be formed and away from the break line; A blank characterized in that a break initiation portion is provided along the .

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