JP2001180661A - Carton - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carton carton which can be easily resealed with a simple structure even in the case of a small and thin carton. SOLUTION: The carton 1 comprises a top face 2, a rear face 3, a base 4, a front face 5 and a sticking tab 6 which are connected in this sequence, and main flaps 7 or side flaps 8 at both ends of each of the faces, wherein openings at both ends of a parallelopiped formed by connecting the top face 2 with the sticking tab 6 are closed by the main flaps 7 and the side flaps 8. In this case, the top face includes an opening guide 12 to be opened from a side of the front face 5 with at least a part connected, an open/close lid 13 formed by separating at the guide 12 and a lock 14 to be locked with the sticking tab 6 with an end of the top face 2 or a part of the lid 13 deformed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a carton,
In particular, the present invention relates to a carton that can reseal an opening after opening.

[0002]

2. Description of the Related Art Conventionally, carton containers for food and the like are often used in such a manner that when the contents are not used up after opening, the opening is resealed for hygiene and preservation. For example, a folded portion is provided in the lid portion that closes the opening, and the folded portion is folded into the opening and sealed, or the tip of the lid is inserted into the edge of the opening and sealed. Things are known.

[0003]

However, as described above, there are various types of cartons having a resealable form. However, if the cartons are small or particularly small in size, they must have resealability. There is a problem that is difficult. In other words, forming a folding allowance in a small, narrow and limited space, or working on the opening,
This complicates the manufacturing process and leads to an increase in cost.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a carton that can be easily resealed with a simple structure even if the carton is small and thin. I do.

[0005]

According to the present invention, in order to achieve the above object, a top flap, a back flap, a bottom flap, a front flap, and a glue allowance are connected in this order, and main flaps or side flaps are provided at both ends of each face. In a carton having openings at both ends of a cylindrical body formed by connecting the top surface and the glue margin, the top surface has at least a part thereof. An opening guiding portion for connecting and opening from the front side, an opening / closing portion formed by separating at the opening guiding portion, and an end portion of the top surface or a part of the opening / closing portion to deform the glue. It is characterized by having a locking portion locked in place.

According to the present invention, the opening / closing portion can be easily formed by forming the opening guiding portion on the top surface of the carton and separating the opening guiding portion at the time of opening, so that the opening portion can be easily formed. By deforming the part and locking it to the glue allowance, resealing can be easily performed with a simple configuration without greatly changing the conventional design.

[0007] It is preferable that the glue allowance is provided with an overcoat at least on a portion to be bonded to the opening / closing portion. According to this, since the surface is processed to give a gloss by coating with a resin paint, the surface can be processed at a low cost, and the opening / closing part can be easily peeled off from the adhesive margin at the time of opening. Damage to the locking portion on the side can be prevented. In addition, it is preferable that the glue allowance is applied with a press coat or a roll coat at least on a portion to be bonded to the opening / closing section. According to this, there is an effect that even when glued, the releasability is more excellent than the overcoat treatment. The material of the overcoat is preferably an acrylic, epoxy, or rosin-modified phenolic polymer resin paint. According to this, the opening / closing section can be more easily opened. In addition, it is preferable that a cut portion is provided near a portion of the glue allowance where the locking portion is locked. According to this, the portion where the locking portion of the glue allowance can be easily deformed, so that the locking portion can be held without difficulty and the resealing can be performed reliably.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an exploded view of a carton according to an embodiment of the present invention, FIG. 2A is an explanatory view showing a state where the carton is assembled, FIG. 2B is an explanatory view showing an opened state of the carton, and FIG. FIG. 4 is an explanatory view showing a state of a locking portion when the carton is sealed. In this embodiment, as shown in FIG. 1 and FIG. 2A, the top surface 2, the back surface 3, the bottom surface 4, the front surface 5, and the glue allowance 6 are connected in this order. Main flaps 7 are formed at both ends,
Side flaps 8 are formed at both side ends of the rear surface 3 and the front surface 5, and both ends of a cylindrical body having a square cross section formed by overlapping and connecting the top surface 2 and the margin 6. Is a carton 1 whose opening is closed by the main flap 7 and the side flap 8.

The top surface 2 and the bottom surface 4 have a rectangular shape having substantially the same external dimensions, and the back surface 3 and the front surface 5
However, it has a rectangular shape having substantially the same external dimensions. The main flap 7 has the same size as the width of the rear surface 3 and the front surface 5 and the top surface 2 and the bottom surface 4.
Are formed so as to protrude in a rectangular shape from both side ends. The side flaps 8 are formed to have rectangular dimensions slightly shorter than the widths of the rear surface 3 and the front surface 5 and protrude in a rectangular shape from both side ends of the rear surface 3 and the front surface 5. A bent portion 9 is formed at a boundary between the respective surfaces constituting the carton 1.

The top surface 2 has a trapezoidal opening knob 11 protrudingly formed at the center of one long side end 2a.
Perforated slits 12a, 12b, 12 are formed in a substantially house shape (substantially modified pentagonal shape) with the opening knob 11 as a vertex.
An opening guiding portion 12 is formed by c, 12d, 12e, 12f and a bent portion 12g. The portion surrounded by the opening guide 12 is the opening / closing lid 13.

The opening guide 12 is formed symmetrically with respect to the carton center line. The slits 12a, 1
2b is formed with a predetermined length in a direction substantially perpendicular to the longitudinal direction of the top surface 2 from an intersection 11a of the one long side end 2a and the opening knob 11, and a slit 12
c and 12d are formed. The slit 12c12
d is formed at a predetermined angle and a predetermined length in the longitudinal direction of the top surface 2, and slits 12e,
2f is formed. The slits 12e, 12f
Is formed with a predetermined length substantially perpendicular to the longitudinal direction of the top surface 2. The bent portion 12g is formed at a predetermined interval substantially in parallel with the bent portion 3a at the boundary with the back surface 3 while connecting the end portions of the slits 12e and 12f.

An engaging portion 14 is formed near the opening knob 11 on the top surface 2 which becomes the opening / closing lid 13 after opening. The locking portion 14 has the opening side of the opening knob portion 11 on the arc side.
This is formed by forming a semicircular slit 14a directed toward. In addition, the locking portion 14 is provided as shown in FIG.
As shown in (a) and (b), when the top surface 2 and the glue allowance 6 are overlapped to form the carton 1 in a box shape,
It is formed at a position facing the glue margin 6, and is arranged at a position where the apex of the arc portion of the locking portion 14 enters inside the side end 6 a of the glue margin 6.

A slit 6b is formed at a position opposite to the locking portion 14 at a substantially central portion of the side end 6a of the glue margin 6 and slightly outside the width of the locking portion 14, and a slit 6b is formed in the longitudinal direction of the glue margin 6. It is formed with a predetermined length substantially perpendicular to the direction. Further, a portion sandwiched between the slits 6b is a holding portion 6c of the locking portion 14. Opening / closing lid 2 for the glue allowance 6
The portion that overlaps with c is overcoated. As a material of the overcoat, an acrylic resin paint is used.

When the carton 1 constructed as described above is formed three-dimensionally, first, the boundary between the surfaces is bent, and the top surface 2 and the glue allowance 6 are overlapped and bonded. At this time, since the overcoat is applied to the portion of the adhesive margin 6 that overlaps the opening / closing lid 2c, the opening / closing lid 2c can be easily peeled off from the adhesive margin 6 at the time of opening. Next, the main flap 7 of the bottom surface 4 is superimposed on the outside of the side flap 8, and the main flap 7 of the top surface 2 is superimposed and pasted on the outside thereof. In this way, a thin box shape is formed as shown in FIG. Here, top surface 2
And the front face 4 form a corner, but since the open / close knob 11 protrudes from the side end of the top surface 2,
The open / close knob 11 is configured to protrude from the front surface 4.

Next, opening and closing of the carton 1 of the present embodiment will be described with reference to the drawings. First, when opening the carton 1, as shown in FIGS. 2 (a) and 2 (b), the protruding opening / closing knob 11 is pulled upward, and the opening / closing knob 11 and the top surface 2 are closed. The top surface 2 extends along the slits 12a to 12f from the boundary of the side end 2a.
Then, the opening / closing lid 13 is separated leaving the bent portion 12g.
At this time, since the adhesive margin 6 and the vicinity of the opening / closing knob 11 are overcoated, they are easy to peel off, and the other parts are attached to the adhesive margin 6, so that the opening / closing lid 13 is easily separated. can do.

Next, when the opened carton 1 is to be sealed, as shown in FIGS.
Is pushed in the closing direction. The opening / closing lid 1
3, as shown in (c) of FIG. 2, the glue margin 6 first contacts the opening / closing knob 11. At this time, the holding portion 6 of the glue allowance 6
The tips of the locking portions 14 on c overlap. Then, when the cover 13 is further pushed down, the adhesive margin 6 of the cover 13 is reduced.
A portion in the vicinity tries to stop at the upper part of the margin 6, but the vicinity of the locking portion 14 is pushed down. At this time, the holding unit 6
c and the locking portion 14 are deformed, the end of the locking portion 14 is disengaged from the end of the holding portion 6c, and enters the back side of the holding portion 6c. In this state, when the operation of pushing the opening / closing lid 13 is stopped, the opening / closing lid 14 tries to open with a slight restoring force due to bending. However, the locking portion 14
Is inserted into the lower side of the holding portion 6c, so that the sealed state by the opening / closing lid 14 can be held. In other words, the sealing operation can be performed by an extremely simple operation of simply pushing the opening / closing lid 13 into the opening and releasing it.

According to the above configuration, the locking portion 14 is formed on the opening / closing lid 13 formed on the top surface 2 so that the locking portion 14 can be easily resealed with an extremely simple configuration in which a part of the adhesive margin is held. can do. Also, by applying an overcoat to a portion of the glue allowance 6 that comes into contact with the opening / closing lid 14, the opening / closing lid 14 can be easily peeled from the glue allowance 6 at the time of opening. Damage to the portion 6c can be prevented. In addition, since the cut portion is provided in the vicinity of the portion of the glue allowance 6 where the locking portion is locked, the holding portion 6c can be deformed with a slight force, so that the locking portion can be easily held. And the resealing can be performed reliably.

Next, a modification of this embodiment will be described with reference to the drawings. FIG. 3A is an explanatory diagram showing a configuration of a carton with a hook according to a modification, and FIG. 3B is an explanatory diagram showing details of a hook portion of the carton. The components having the same configuration and operation as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted. This modification is shown in FIG.
As shown in (b), the top surface 2, the back surface 3, the bottom surface 4, the front surface 5, and the glue allowance 6 are connected in this order, and main flaps 7 are formed on both side edges of the top surface 22 and the bottom surface 4. Side flaps 8 are formed at both ends of the back surface 3 and the front surface 5. The top surface 22 and the glue allowance 6 are overlapped and connected to each other. The opening is formed by the main flap 7 and the side flap 8
Is a carton 21 closed by

The top surface 22 has a rectangular shape, one long side end 22a of which extends in the width direction larger than the bottom surface 4 and has a convex shape at a substantially central portion thereof for an elongated hole hook. Hole 30
Are formed. The hook hole 30 is used as a hanging hole at the time of sale. Starting from a part of one side of the hook hole 30, a substantially house-shaped perforated slit 12a, 12b, 12c, 12d, 12e, 12f and an opening guiding portion 12 formed by a bent portion 12g are formed in a substantially convex shape. ing. The portion surrounded by the opening guide 12 is the opening / closing lid 23.

An engaging portion 14 is formed near the opening knob 31 on the top surface 2 which becomes the opening / closing lid 23 after opening. The locking portion 14 is formed by the opening knob portion 31 on the arc side.
This is formed by forming a semicircular slit 14a directed toward. As shown in FIG. 3B, when the top surface 22 and the glue allowance 6 are overlapped and the carton 21 is formed in a box shape, the locking portion 14 faces the glue allowance 6. And the apex of the arc portion of the locking portion 14 is disposed at a position where it enters inside the side end 6 a of the margin 6.

A slit 6b is provided at a position substantially opposite to the locking portion 14 at a substantially central portion of the side end 6a of the glue margin 6 and slightly outside the width of the locking portion 14 so that the slit 6b extends longitudinally. It is formed with a predetermined length substantially perpendicular to the direction. Further, a portion sandwiched between the slits 6b is a holding portion 6c of the locking portion 14.

Next, the opening of the carton 21 which is a modification of this embodiment will be described with reference to the drawings. First, when opening the carton 21, as shown in FIG. 3B, the opening / closing knob 31 is pulled upward starting from a part of the contour of the hook hole 30, and is moved along the slits 12 a to 12 f. The opening / closing lid 23 is bent from the top surface 22 to form a bent portion 12g.
To separate. At this time, glue allowance 6 and opening / closing knob 3
Since the vicinity of 1 is overcoated, it is easy to peel off, and the other parts are attached to the margin 6, so that the open / close lid 23 can be easily separated.

In this embodiment, the locking portion 14
Is formed in an arc shape, but the present invention is not limited to this. For example, if the locking portion 14 has a shape held by the glue allowance 6, the locking portion 14 may have a rectangular shape or the like. ,
It may have a wedge shape.

In this embodiment, the slit 6b is formed in two places in the glue allowance 6, but the present invention is not limited to the configuration of the glue allowance. If a margin is used, for example, a slit may be formed at one place in the glue margin, or a holding part may be formed to project from the glue margin. Needless to say, those used are also included in the present invention.

Further, in this embodiment, the bent portion 12g is formed in the opening / closing portion. However, the present invention is not limited to the configuration of the opening / closing portion. A perforated slit may be formed, or a bent portion may not be formed.

Further, in the present embodiment, the bent portion is formed at the boundary between the respective surfaces constituting the carton. However, the present invention is not limited to the configuration of the carton, for example, It may not have a bent portion at the boundary of each surface.

In this embodiment, an acrylic resin paint is used as a material for the overcoat. However, the present invention is not limited to this.
An epoxy resin coating or a resin coating of a rosin-modified phenolic polymer may be used. In these cases as well, as in the present embodiment, the adhesive portion can be opened without breaking, so that the locking portion is not damaged.

In the present embodiment, the overcoat is applied to the paste allowance 6, but the present invention is not limited to this, and a press coat or a roll coat may be applied to the paste allowance. . In this case, after coating with the resin paint, the surface is further processed by applying heat and bringing it into contact with the glossy surface, so that there is an effect that the smoothness of the bonded portion is improved and the adhesive portion is easily peeled off.

[0029]

As described above, according to the present invention, the opening guide portion is formed on the top surface of the carton, and the opening / closing lid can be easily formed by separating the opening guide portion when opening the carton. Alternatively, a locking portion is formed on a part of the opening / closing lid, and the locking portion is deformed and locked to the adhesive margin, so that resealing can be easily performed with a simple configuration without greatly changing the conventional design. Will be possible. In addition, by applying an overcoat to a portion of the glue allowance that is bonded to the opening / closing lid, the opening / closing lid can be easily peeled from the glue allowance at the time of opening, thereby preventing damage to the locking portion on the glue allowance side. It has the effect that it can be done. Further, by providing the cut portion in the vicinity of the portion where the locking portion of the glue margin is locked, the portion where the locking portion of the glue margin is hooked can be easily deformed.
This has the effect that the locking portion can be held without difficulty and resealing can be performed reliably.

[Brief description of the drawings]

FIG. 1 is a development view showing a configuration of a carton according to an embodiment of the present invention.

2 (a) is an explanatory view showing an assembled state of the carton, FIG. 2 (b) is an explanatory view showing an opened state of the carton, and FIG. 2 (c) shows a state of a locking portion when the carton is sealed. FIG.

FIG. 3A is a development view showing a configuration of a carton with a hook according to a modification, and FIG. 3B is an explanatory diagram showing details of a hook portion of the carton.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 21 Carton 2, 22 Top surface 3 Back surface 4 Bottom surface 5 Front surface 6 Gap allowance 6c Holding portion 7 Main flap 8 Side flap 9 Bending portion 11, 31 Opening knob portion 12 Opening guide portion 12a to 12f Slit 12g Bending portion 13, 23 Opening / closing lid 14 Locking part 30 Hook hole

Claims (5)

[Claims] 1. A top face, a back face, a bottom face, a front face, and a margin are connected in this order, and a main flap or a side flap is provided at both ends of each face, and the top face and the margin are connected and formed. In a carton in which the openings at both ends of the cylindrical body to be closed are closed by the main flap and the side flaps, the top surface is at least partially connected to an opening guiding portion for opening from the front side, An opening / closing portion formed by separating at the opening guiding portion, and a locking portion locked by the glue margin by deforming an end of the top surface or a part of the opening / closing portion. Carton to do. 2. The carton according to claim 1, wherein the glue margin is formed by applying an overcoat to at least a portion bonded to the opening / closing portion. 3. The carton according to claim 1, wherein the paste margin is formed by applying a press coat or a roll coat to at least a portion to be bonded to the opening / closing portion. 4. The carton according to claim 1, wherein the material of the overcoat is an acrylic, epoxy, or rosin-modified phenol-based polymer resin paint. 5. The carton according to claim 1, wherein a cut portion is provided near a portion of the glue allowance where the locking portion is locked.