JP5640717B2 - Volume-reducing carton - Google Patents

Description

  The present invention relates to a carton that can be reduced in size (can be reduced in volume) when the content is reduced and reduced.

  2. Description of the Related Art Cartons that contain confectionery or the like and are sold are configured so that the size of the carton itself can be reduced when the content decreases and decreases. The carton that can be reduced in volume can save space during storage. Moreover, since it becomes unnecessary to prepare a refill container separately, it also contributes to resource saving (eco).

  Such a carton capable of volume reduction is disclosed in Patent Documents 1 and 2 and the like, but there is a problem that it becomes difficult to take out the contents from the carton after volume reduction.

  That is, in Patent Document 1, when the contents are reduced, the center part in the height direction of the hexahedron carton is folded and resealed so that the upper part of the carton is folded to the front wall side. When taking out the contents, the folded upper part of the carton is raised again, and the contents are taken out from the upper opening. At this time, since the height of the entire box is the same as before the volume reduction, it is troublesome to take out the remaining contents from the depth of the box.

  In the hexahedron carton of Patent Document 2, the upper part of the back plate (rear wall) is torn off along the perforation during volume reduction, so there is no trouble as described above, but the left and right side walls remain without being torn off. Therefore, when the box is resealed, it still involves troublesome operations such as folding the remaining side wall.

JP 2008-265818 A JP 2008-247442 A

  The present invention was devised in view of the above-mentioned conventional circumstances, and is a carton that is easy to take out the contents after volume reduction and the operation of resealing and has excellent visual design. The purpose is to provide.

According to the present invention, a carton having the following features is provided. That is, a carton having at least a top wall, a bottom wall, a front wall, a rear wall, a right side wall, and a left side wall, and torn after opening the opening flap and breaking the opening flap Has a ceiling part ".
(A)
The opening flap has a tip portion located on the top wall surface, and after being opened, from the “first point on the first ridge line between the rear wall and the right side wall” to the “between the rear wall and the left side wall” It rotates around a rotating crease extending to the “second point on the second ridge line”.
(I)
After breaking the opening flap, the ceiling portion is torn along a “breaking line extending from the first point to the second point through the right side wall, the front wall, and the left side wall”.
(U)
After breaking the ceiling, fold the volume reduction creases on the right and left walls to bring the front and rear walls closer together, and fasten the tip of the opening flap to the locking part on the front wall. And reseal.

  In the carton of the present invention having the above configuration, after opening, the volume is reduced by tearing (removing) the ceiling part constituting the upper part of the carton, so that the access to the remaining contents is easy. Therefore, it is easy to take out.

  Moreover, the torn ceiling portion includes the front wall and the left and right side walls, and as a result of the tearing, only the opening flap extending upward from the rear wall remains in the upper region of the carton. . Therefore, the operation of folding the opening flap forward and resealing it becomes easy.

  In addition, volume reduction creases are provided on the left and right side walls, and the front wall and rear wall are close to each other during volume reduction. Therefore, the carton is tapered toward the top after volume reduction. It changes to the form like this. Such visual changes will delight consumers' eyes, and sales promotion effects can also be expected.

The perspective view which shows the carton which concerns on one Embodiment of this invention from the front side. FIG. 1A shows a state before opening, and FIG. 1B shows a state where the opening flap is broken and opened. The perspective view which shows the carton of FIG. 1 from the back side. 2A and 2B correspond to FIGS. 1A and 1B, respectively. The perspective view which shows the state after tearing a ceiling part about the carton of FIG. 1, and the state which resealed. The figure explaining the modification with respect to the carton of FIGS. The figure explaining another modification.

  Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. 1-3 show a carton according to an embodiment of the present invention.

≪Overall structure of carton≫
The carton is a hexahedron and has a top wall 10, a bottom wall 20, a front wall 30, a rear wall 40, a right side wall 50, and a left side wall 60. As will be described in detail later, when opening, the opening flap 11 is first broken and then the ceiling 80 (FIG. 3a) is broken.

≪Opening flap 11≫
The opening flap 11 has a front end portion 11 a located on the top wall surface 10 and has an extension reaching the upper region of the rear wall 40. That is, after being torn open, the opening flap 11 rotates around the rotating crease 13 located on the rear wall surface 40.
The rotating crease 13 extends from the first point A on the first ridge line between the rear wall 40 and the right side wall 50 to the second point B on the second ridge line between the rear wall 40 and the left side wall 60. (FIG. 2a).

≪Ceiling part 80≫
As shown to Fig.3 (a), after opening the opening flap 11, the ceiling part 80 is torn off. The breaking line M (M1 + M2 + M3) at that time extends from the first point A to the second point B through the right side wall 50, the front wall 30, and the left side wall 60.
That is, the breaking line M is composed of “a part M1 running on the right side wall 50”, “a part M2 running on the front wall 30”, and “a part M3 running on the left side wall 60”.

Since the ceiling 80 is thus torn off (removed) when the volume is reduced, the opening position for accessing the remaining contents is also lowered, and therefore the take-out becomes easy.
Moreover, the torn ceiling 80 includes the front wall 30 and the left and right side walls 50, 60 in the upper part of the carton. As a result of the tearing, the upper region of the carton remains above the rear wall 40. It becomes only the opening flap 11 extended to. Therefore, in the process shown in FIGS. 3A to 3B, the operation of folding the opening flap 11 forward and resealing it becomes easy.

≪Volume reduction 63 →
On the left and right side walls 50 and 60, mountain-shaped volume reduction folds 53 and 63 are formed, respectively. By folding the volume reduction creases 53 and 63, the upper regions of the front wall 30 and the rear wall 40 approach each other, and the volume of the carton is reduced. In that state, the opening flap 11 is folded down to the front wall 30 side and resealed.
FIG.3 (b) is a perspective view which shows the state which resealed. An insertion piece 15 is formed at the front end portion 11 a of the opening flap 11 by cutting, and the resealed state is maintained by engaging the insertion piece 15 with the slit 35 formed on the front wall 30.
Instead of providing the slit 35 in the front wall 30, as another example, an appropriate sealing mode such as inserting the opening flap 11 inside the front wall 30 can be adopted.

  The specific form of the volume reduction crease is not limited to the mountain shape as shown in the figure. For example, the front wall 30 and the rear wall 40 such as one fold line extending vertically or an inverted Y-shaped crease are provided. As long as it can approach and reduce the volume of the carton, an appropriate form of crease can be adopted.

≪Visual effects≫
As shown in FIGS. 1A and 2A, the carton before opening is a hexahedron. On the other hand, as shown in FIG. 3 (b), the carton after volume reduction and resealing has a form that tapers upward like a mountain of Tongari. And using the slit 35 formed in the front wall 30 of the carton and the insertion piece 15 of the opening flap 11, both are locked on the front surface of the carton to maintain the resealed state.
Such a morphological change of the entire carton before and after opening has the effect of delighting consumers' vision, and it can also be expected to promote sales.

  In the illustrated example, the opening flap 11 is locked using the slit 35 and the insertion piece 15. However, any other configuration can be used as long as the opening flap 11 can be locked and the resealed state can be maintained. The locking means can also be adopted.

≪Shape of break line L≫
The breaking line L for breaking open the opening flap 11 is a first portion L1 extending from the leading edge 11a of the opening flap to the first point A to the first point A, as best shown in FIG. And a second portion L2 extending from the leading end portion 11a of the opening flap to the second point B on the second ridge line.
If comprised in this way, since it will utilize especially a 1st ridgeline and a 2nd ridgeline as a fracture | rupture line, fracture | rupture operation is easy to perform. Further, since the ceiling portion 80 does not include the rear wall 40 portion, the tearing operation is facilitated when the ceiling portion 80 is torn later.

  However, the opening flap 11 only needs to be located on the surface of the rear wall 40 so that the ceiling 80 can be torn later. That is, the breaking lines L1 and L2 extending from the front end portion 11a of the opening flap 11 to both sides finally reach the “first and second points A and B on the ridgeline defining both ends of the rotating crease 13”. If you do. Therefore, as long as the condition is satisfied, the specific shape of the fracture line L (L1 + L2) is not limited to that illustrated.

<< Modification 1 (FIG. 4a) >>
FIG. 4 illustrates a modification of the carton. FIG. 4A shows the modification, and FIG. 4B shows the carton of FIGS. The modified example of FIG. 4A is different from the examples of FIGS. 1 to 3 in that the rotating crease 13 and the breaking line M2 have the same height.
That is, assuming that the height of the breaking line M2 is H1 and the rotating crease 13 is H2, H2> H1 in the embodiment of FIGS. 1 to 3, but H2 = H1 in the modified example.

In the example shown in FIGS. 1 to 3, the portion M <b> 2 that runs on the front wall 30 in the breaking line M for breaking the ceiling 80 is lower than the rotating crease 13 (that is, close to the bottom wall 20). Was formed). This brings about the following advantages.
(1) First, since the front wall 30 after rupture is lowered by the amount of the rupture line M2, the contents can be easily taken out.
(2) On the other hand, it is possible to prevent the height dimension (length dimension) of the opening flap 11 from being excessively increased by the height of the rotating crease 13, and as a result, the engagement between the insertion piece 15 and the slit 35 is achieved. The position can be kept relatively high.
If the opening flap 11 is excessively high (long), since the opening flap 11 is folded back to the front wall 30 side, the engagement position between the insertion piece 15 and the slit 35 is low (close to the bottom wall 20). .
In the carton shown in FIGS. 1 to 3, the engagement position between the insertion piece 15 and the slit 35 can be kept high. As a result, the engagement / disengagement operation of both is facilitated, and the design at the time of resealing is enhanced.

  However, as in the modification of FIG. 4A, even if the rotating crease 13 and the breaking line M2 are configured to have the same height, the contents can be easily taken out if the height is set appropriately. Now, it is possible to balance the simplicity of the engaging / disengaging operation of the opening flap 11 and the designability at the time of resealing.

<< Modification 2 (FIG. 5) >>
Another modification will be described with reference to FIG. As best shown in FIG. 2 (a), when adopting a configuration in which the first portion L1 and the second portion L2 of the breaking line L extend on the first and second ridge lines, respectively, FIG. It is also possible to make changes as shown in FIG.

That is, as shown in FIG. 5A, a portion 71 on the bottom wall 20 side from the first point A of the first ridge line and a portion 72 on the bottom wall 20 side from the second point B of the second ridge line Each of them is composed of lead rules.
As shown in FIG. 5 (b), the lead ruled line is formed by overlapping folding lines and perforations (intersecting cut lines), which is generally known per se. Thus, the folding operation can be easily performed with a smaller force than in the case of a simple crease. This configuration has the following meaning.

That is, the first ridge line is constituted by the breaking line L1 above the first point A, and similarly, the second ridge line is constituted by the breaking line L2 above the second point B, and This part is configured to be relatively easy to bend when assembling the carton. In that case, if the ridge line portion below the first point A and the second point B is a simple crease, the difference in ease of folding (necessary force) between the upper region and the lower region on the ridge line is large, This may cause wrinkles on the wall surface when assembling the carton, or the assembled carton may not be an accurate hexahedron, resulting in an irregular shape.
By adopting the lead rules 71 and 72 as shown in FIG. 5 (a), the bending strength of the portion is reduced by that amount, so that it is easy to bend the upper region and the lower region on the ridge line (necessary The difference in force) is reduced, and the above disadvantages can be avoided.

When the lead rules 71 and 72 are employed, as shown in FIG. 5A, the first portion L1 and the second portion L2 of the breaking line L are respectively the first point A and the second point. It is preferable to include break stop portions 75 and 76 that are folded back into a substantially U shape immediately before reaching B.
In the case of the lead rules 71 and 72, the breaking strength is weaker than that of a simple folding rule. For this reason, when the opening flap 11 is torn open, the breakage that progresses on the first and second ridgelines is surpassed, and proceeds to the lead rules 71 and 72 beyond the first and second points A and B. There is a fear. This can be effectively prevented by providing the break stop portions 75 and 76 that are folded back into a substantially U shape.

  Although the carton illustrated and described is a hexahedron, the present invention is applied to a carton having an appropriate form as long as it includes at least a top wall, a bottom wall, a front wall, a rear wall, a right side wall, and a left side wall. Is applicable.

DESCRIPTION OF SYMBOLS 10 Top wall 11 Opening flap 11a Tip part 13 Turning fold rule 15 Insertion piece 20 Bottom wall 30 Front wall 35 Slit 40 Rear wall 50 Right side wall 53 Volume reduction fold 60 Left side wall 63 Volume reduction fold 71, 72 Lead rule 75, 76 Breaking stop part 80 Ceiling part

Claims (5)

At least through the top wall (10), the bottom wall (20), the front wall (30), the rear wall (40), the right wall (50) connected to the rear wall via the first ridgeline, and the second ridgeline A carton including a left side wall (60) connected to the rear wall,
Having an opening flap (11) that can be torn when opened, and a ceiling portion (80) torn after opening the opening flap,

(A)
The opening flap (11)
(I) A first portion (L1) extending from the tip (11a) located on the top wall surface to the first point (A) on the first ridge line, and a second portion on the second ridge line from the tip (11a). A break line (L) consisting of a second part (L2) extending to 2 points (B);
(Ii) The rear wall (40) is partitioned by a rotating crease (13) extending from the first point (A) to the second point (B),

(I)
The ceiling (80)
From the first point (A) through the right side wall (50), the front wall (30), the left side wall (60) to the second point (B), the right side wall (50 ), Divided from the front wall (30) and the left side wall (60),
On the right side wall (50) and the left side wall (60), a volume reduction crease (53, 63) is provided at a position below the breaking line (M), respectively.

(U)
After breaking the opening flap (11) along the breaking line (L), tearing the ceiling (80) along the breaking line (M), and further folding the volume reduction ruled lines (53, 63). Then, the carton is resealed with the front wall (30) and the rear wall (40) approaching each other .
The portion of the first ridge line closer to the bottom wall (20) than the first point (A) and the portion of the second ridge line closer to the bottom wall (20) than the second point (B) are creased, respectively. The carton according to claim 1, wherein the carton is composed of lead rules made of perforations.
The carton according to claim 1 or 2, wherein the tip end portion (11a) of the opening flap is fastened to a locking portion (35) provided on the front wall during the re-sealing.
The first portion (L1) and the second portion (L2) of the breaking line (L) are folded back into a substantially U shape immediately before reaching the first point (A) and the second point (B), respectively. The carton according to any one of 1 to 3, comprising (75, 76).
  The part (M2) running on the front wall of the breaking line (M) for breaking the ceiling part (80) is formed at a position closer to the bottom wall than the rotating crease (13). The carton according to any one of claims 1 to 4.

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