JP2004155478A - Packaging box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging box which can be simply and surely separated (a strip can be torn) for forming a tray. <P>SOLUTION: The wrap-around-type packaging box includes an upper face plate, a bottom face plate, a belt-like barrel formed having side face plates for coupling the upper and bottom face plates, and inner and outer flaps. A pair of start-to-tear pieces formed at an interval of a predetermined distance are formed approximately at the center of the side face plate. Opposite ends of the pair of tear pieces are substantially coupled via a linear start-to-cut line formed within the predetermined interval. The linear start-to-cut line is cut off, and thereafter the pair of start-to-tear pieces are pulled from the center of the side plate toward both ends respectively. Thus a tear strip connecting with the start-to-tear piece is removed, and upper and lower portions of the box are respectively separated accordingly. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a so-called wrap-around paper packaging box that stores container products such as can products so as to wrap them, and in particular, when displaying the contents of a container product at a storefront, for example, a pre-formed packaging box. The present invention relates to a packaging box having a function of dividing a paper box up and down by tearing a tear strip along a cutting line (perforated zipper) to form a tray.
[0002]
[Prior art]
[Patent Document 1] Japanese Patent Application Laid-Open No. 9-193923 [Patent Document 2] Japanese Patent Application Laid-Open No. 10-101664 [Patent Document 3] Japanese Patent Application Laid-Open No. 11-171172 [Patent Document 4] Japanese Patent Application Laid-Open No. 2000-335554 [Patent Document 4] Reference 5: Japanese Patent Application Laid-Open No. 8-53127
Packaging of a container product in a so-called wrap-around type packaging box is generally performed in the following manner. That is, generally, after a container product is housed in a band-shaped body portion formed by connecting four side plates in a wrapping manner, both ends of the body portion that is kept open are respectively a pair of inner flap and outer flap. , The packaging box in which the container product is stored is completed.
[0004]
In the wrap-around type packaging box formed in this way, when the contents of the container are displayed at a store, the wrap-around type packaging box is torn along a cutting line (perforated zipper) formed in advance in the packaging box. There is a type in which a paper box is divided into upper and lower parts by tearing a band, a top cover is removed, and the remaining lower box remaining at the lower part can be used as a paper tray for directly placing products.
[0005]
FIG. 9 shows a form of this type of packaging box which has been generally used in the past.
The so-called zipper function of the conventional can wrap-around carton case 100 shown in FIG. 9 is constituted by perforations formed on the side surface 120 in a belt shape in advance. The state depicted by the dotted line in the figure is the state before opening, but it is common that only the trapezoidal tear-starting piece is perforated and the other parts are cut inside.
[0006]
By tearing the pair of trapezoidal tear-starting pieces 121 and 125 formed so as to be substantially in close contact with the center of the side face from the center of the side face toward both ends (in the direction of the arrow) (in the unsealed state). Finally, the upper and lower sides of the box are each divided into trays.
[0007]
[Problems to be solved by the invention]
However, the so-called zipper of such a conventional wrap-around carton case, when displayed at a storefront, the carton part which is torn while being formed in a band shape is cut off during the tearing, or the band width gradually decreases. In some cases, the tray may not be stably and reliably formed due to incomplete tearing due to convergence.
[0008]
If the box opening operation is interrupted in such a state, it is necessary to newly continue the operation of manufacturing the zipper tray by using some method. As described above, the operation after the band is once broken is extremely complicated, and the contents inside the box may be damaged depending on the operation method. The appearance of the tear surface is also poor. Furthermore, the scattered amount of generated garbage increases, and the subsequent clearing and disposal requires a great deal of labor. Also, upon opening, the trapping allowance of the trapezoidal tear-starting pieces adjacent to each other in contact with each other cannot be said to be sufficient, and it is generally difficult to firmly grip the tear-off starting pieces. Therefore, it can be said that the labor required for tearing and opening the so-called zipper (tearing strip) is enormous, and the physical load is large.
[0009]
The present invention has been devised based on such a situation, and an object of the present invention is to solve the above-described problems and to easily and reliably perform a box cutting operation (a tearing operation of a band) for forming a tray. It is to provide a packaging box that can be used. More specifically, it is an object of the present invention to provide a packaging box which can easily perform a work of tearing a tear strip, and furthermore, the tear strip does not break off during tearing, thereby reducing the amount of garbage generated. It is in.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the wrap-around packaging box of the present invention includes a top-shaped plate, a bottom plate, and a band-shaped body formed having side plates connecting these, and an inner flap and an outer flap. A pair of tear-starting pieces formed at regular intervals in the center of the side plate are formed at regular intervals, and opposing ends of the pair of tear-starting pieces are spaced apart from each other by the predetermined distance. Are substantially connected by a linear cut start line formed therein, and cut off the linear cut start line. Thereafter, the pair of tear start pieces are respectively directed from the center of the side plate to both ends. By tearing, the tear strip connected to the tear start piece is removed, and the upper and lower sides of the box are cut off accordingly.
[0011]
As a preferred embodiment of the present invention, the opposite ends of the pair of tear-starting pieces are provided with a curved portion that is close to the opposite side, and the curved portions are connected by a linear cutting start line. Is done.
[0012]
As a preferred aspect of the present invention, when the height of the tearing start piece at the opposing portion is Hw, the linear cutting start line is connected to a position of not less than 1 / 5Hw and not more than 3 / 5Hw from below the curved portion. It is configured as follows.
[0013]
As a preferred aspect of the present invention, after the linear cut start line is cut off, the cut start line is provided as a lower end portion, and a part of the side plate located above the cut start line is gripped to grip the pair of tear start pieces. It is configured so that space can be secured.
[0014]
As a preferred embodiment of the present invention, the length of the linear cutting start line corresponding to the predetermined distance is 60 to 100 mm.
[0015]
As a preferred embodiment of the present invention, the pair of tear-starting pieces are configured to be connected to the cut-out strips formed on the side face portions and the connected inner flaps, respectively, so that the upper and lower portions of the box body are separated from each other. .
[0016]
As a preferred embodiment of the present invention, a linear cut start line corresponding to the predetermined distance is formed at a substantially central portion of the side plate, and a maximum depth gap of the filling in the packaging box exists at the substantially central portion. It is configured to be.
[0017]
At a substantially central portion of the side plate of the packaging box of the present invention, a pair of tear start pieces formed at intervals of a predetermined distance are formed, and opposing ends of the pair of tear start pieces are the aforementioned It is substantially connected by a linear cut start line formed within a certain interval, cuts off the linear cut start line, and then, the pair of tear start pieces, respectively, from the center of the side plate By pulling toward both ends, the tear strip connected to the tear start piece is removed, and the upper and lower sides of the box are cut off accordingly. First, the linear cutting start line is cut off and the side plate located above it is turned up, so that a sufficient space for gripping the pair of tearing start pieces can be secured, and the opening work can be easily performed. I do. The presence of the linear cut start line serves to shorten the length of the strip for opening and to reduce the possibility of cutting during the course.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example of a specific embodiment of the packaging box of the present invention will be described with reference to FIGS.
[0019]
FIG. 1 shows an example of an exploded view of the packaging box 1 of the present invention, and FIG. 2 is a perspective view in which the exploded box original paper shown in FIG. 1 is assembled. FIGS. 3 to 7 respectively divide the paper box up and down by tearing the tear strip through the tear start piece formed on the side surface of the packaging box (product shipping box) assembled as shown in FIG. FIG. 4 is a schematic perspective view for explaining a state of forming a tray over time. FIG. 8 is a partially enlarged view in which the relevant portion is enlarged to explain a configuration near a pair of tear start pieces. The assembled perspective views in FIGS. 2 to 7 are simplified as rectangular boxes in order to easily explain only the main parts of the invention as will be described later.
[0020]
As can be easily understood from the development view shown in FIG. 1 and the assembly view shown in FIG. 2, for example, first, a plurality of (four in this embodiment) After storing the container product (a group of canned products such as canned beer) in a band-shaped body formed by connecting the bodies 11, 21, 15, and 25, the band-shaped body is sealed with a glue margin piece 9. A cylindrical body is formed by integrally fixing the body.
[0021]
Thereafter, the four side pieces 38 (substantially rectangular shape) are folded inward from the fold lines 61, 65, 81, and 85 shown in FIG. 1, and further, the four inner flaps 31 and, from the fold lines 62, 66, 82, and 86. 31, 35, 35 are folded inward.
[0022]
Next, the four inner flaps 31, 31, 35, 35 are glued to predetermined positions on the outer surface.
[0023]
Next, the four outer flaps 41, 41, 45, 45 are folded from the fold lines 71, 75, 91, 95 toward the gluing surface, and the packaging box 1 as shown in FIG. 2 is completed. This state corresponds to a so-called shipping box.
[0024]
As can be seen from the developed view of FIG. 1, the packaging box assembled with the developed view has a form in which the corners of the body to which the inner flap is connected are cut off as a result of the presence of the four side pieces 38 (FIG. 1 corresponding to the symbol H). Therefore, the planar shape of the packaging box assembled from the developed view of FIG. 1 as viewed from the top plate 25 is a deformed octagon as if the corners of the box were cut off. However, the presence of the four side pieces 38 is not an essential requirement in the packaging box of the present invention, and thus may be in the form of a plane octagon in which the four side pieces 38 are present, or in the general absence of these. It may be a flat quadrilateral form. From this point of view, the assembled perspective views in FIGS. 2 to 7 are plan quadrilateral forms (only four side pieces 38 exist) in which only the main parts are appropriately drawn to simplify the drawings for explaining the main parts of the invention. (Not done).
[0025]
Such a packaging box 1 of the present invention, for example, when displaying the contents of a container at a store, a pair of tearing start pieces 12, 13, 16, 17 formed in advance on the side plate of the packaging box, respectively. By pulling from the center of the side plate toward both ends, the tear strips 4 and 5 connected to the tear start piece are removed, and the upper and lower sides of the box are cut off, and the upper lid is removed. The remaining lower box is used as a paper tray on which to place products.
[0026]
That is, as can be seen from the developed view of FIG. 1 and FIG. 2, the assembled packaging box 1 has a pair of opposed side plates 11 and 15 formed continuously on the side constituting the body of the top plate 25. Upper side outer flaps 45 are connected to both ends of the upper surface plate 25 on the opening side, respectively.
[0027]
Similarly, the pair of side plates 11 and 15 described above are continuously formed on the side of the bottom plate 21 forming the body, and the lower side outer flaps are provided at both ends of the bottom plate 21 on the opening side. 41, 41 are formed.
[0028]
Further, inner flaps 31, 31 are respectively formed at both ends on the opening side of the side plate 11 so as to be substantially connected to each other, and these form an integrated side portion 30.
[0029]
Similarly, inner flaps 35 and 35 are respectively formed at both ends of the side plate 15 on the opening side in a substantially continuous manner, and the integrated flaps 35 are formed by these. Here, the expression “substantial connection” is intended to include not only direct connection but also indirect connection. That is, the form in the developed view of FIG. 1 shows a form in which each side plate 11, 15 is indirectly connected to the inner flap via the side piece 38. Due to the formation of the side pieces 38, as described above, the planar shape viewed from the upper surface plate 25 in the embodiment of FIG. 1 is a deformed octagon as if a corner of the box was cut off. In the present invention, it is needless to say that a general plane quadrangular form without the side piece 38 may be used.
[0030]
A pair of tear-starting pieces 12, 13 and 16, 17 are formed at substantially the center of the side plates 11, 15 in the present invention, each having a predetermined distance D between them. The tear-starting pieces 12, 13 and 16, 17 have a so-called rounded U-shape, and a so-called perforation is formed along the U-shape (that is, intermittent so as to enable tearing). The form is formed by the cut line). In particular, it is desirable that the opposing ends of the pair of tear-starting pieces 12, 13 and 16, 17 have a curved portion that is close to the opposing side. Further, since the perforations are formed by punching out box paper in the thickness direction, the perforation length, the pitch, and the like may be determined in consideration of box strength, easiness of tearing, and the like.
[0031]
Opposite ends of each of the pair of tear-starting pieces 12, 13 and 16, 17 are connected by linear cut-off starting lines 14 and 18 formed within the predetermined interval D, respectively.
[0032]
Desirably, such linear cut start lines 14 and 18 are formed by so-called perforations, and can be cut along a line by pressing the line portions 14 and 18 with a finger. ing. In other words, the linear cut start lines 14 and 18 are formed as intermittent cut lines so as to be separable. Further, since the perforation is formed by punching out box paper in the thickness direction, the perforation length, the pitch, and the like are determined in consideration of box strength, easiness of tearing, and the like.
[0033]
In the present invention, assuming that the height of the tearing start pieces 12, 13, 16 and 17 at the facing portions (curved portions) is Hw, the linear cutting start lines 14 and 18 are positioned below the curved portions (below the packaging box). From the side), it is desirable to be connected at a position of １ ／ Hw or more and ／ Hw or less, particularly, １ ／ Hw or more and less than ＨHw. With such a setting, after the linear cut start lines 14 and 18 are cut along the line, the cut start line is provided as a lower end portion, and a part of the side plate located above the cut start line is turned up to form a pair. In this case, a sufficient space for gripping the tear start piece can be secured. The height Hw at the opposing portions (curved portions) of the tear start pieces 12, 13 and 16, 17 depends on the size of the box, but is usually 15 to 50 mm, more preferably 20 to 30 mm.
[0034]
In addition, the length of the linear cutting start line corresponding to the predetermined distance (it may be considered to be substantially the same length as D) is 60 to 100 mm, preferably 70 to 90 mm. If this value exceeds 100 mm, problems tend to occur from the viewpoint of box strength. On the other hand, if it is less than 60 mm, it tends to be difficult to turn up the side plate located above the line after cutting off the line. In addition, due to the presence of such a linear cutting start line, the length of the strip that is actually torn for opening can be shortened, and the risk of breakage during opening can be reduced.
[0035]
Further, the pair of tear-starting pieces 12, 13 and 16, 17 are substantially formed on the cut-off strips 4, 5 formed on the side faces and the connected inner flaps, respectively, so that the upper and lower portions of the box are cut off. Are linked.
[0036]
That is, as shown in FIG. 1, tear bands 4, 5 are formed on the integrated side portions 30, 30 of the present invention, respectively, so that a pair of tear bands 4, 5 can be connected to the tear bands 4, 5. The tear start pieces 12, 13 and 16, 17 are formed.
[0037]
The tear band 4 is substantially formed by the line L1 (upper cut line L1) and line L2 (lower cut line L2) in FIG. 1, and the tear band 5 is formed by a line L3 (upper line) in FIG. The cut line L3) and the line L4 (lower cut line L4) are formed.
[0038]
It is preferable that the upper cut line L1 and the lower cut line L2, and the upper cut line L3 and the lower cut line L4, which potentially constitute the tear strips 4 and 5, respectively, are manufactured in the following manner. That is, each of these lines is formed by a liner cut formed in the integrated side portions 30, 30, in particular, an inner liner cut formed inside (inside of) the integrated side portions 30, 30 so as to be invisible from the outside. Is desirably formed by The so-called corrugated cardboard paper is formed by laminating an outer liner and an inner liner on both sides of the corrugated core as a core material. A process for forming a cut having a corresponding predetermined shape, that is, a liner cut.
[0039]
Such a liner cut is more advantageous for maintaining the strength of the box than a perforation (perforation line) formed by punching out the cardboard paper after lamination.
[0040]
A pair of tear-starting pieces 12, 13 and 16, 17 are connectable to the tear strips 4, 5 (formed with a strip width G as shown in FIG. 8) formed by such a liner cut. Are formed by punching with intermittent cut lines such as perforations. At the same time, the perforations or the like are arranged such that the cutting start lines 14 and 18 are substantially connected (to enable the operation of the present invention) to such a pair of tearing starting pieces 12, 13 and 16, 17. For example, it is punched and formed with intermittent cut lines.
[0041]
The cutting operation using such a linear cutting start line and tearing start piece is a main part of the present invention, and is shown in FIGS. 3 to 7 so that the main part configuration can be more easily understood. This will be described below in conjunction with the tearing operation over time. Since the specifications of the side plates 11 and 15 are substantially the same, the following description will be made with reference to the side plate 11 as a representative example.
[0042]
Formation of tray based on cutting operation When cutting and opening the packaging box 1 shown in FIG. 2, first, as shown in FIG. 3, the linear cut start line 14 is cut off by pushing a finger or the like. Thereafter, the cut start line is provided as a lower end portion, and the side plate portion 11a located above the cut start line is turned up. The roll-up direction may be on the inner side or the outer side of the box. However, it is easy to roll up to push in the box.
[0043]
By this operation, a space E for holding the pair of tear start pieces 12 and 13 can be secured. Usually, in a packaging box in which an even number of cylindrical containers such as beer cans are stored across the side plate, a maximum depth gap of the filling in the packaging box exists substantially in the center of a cutting start line formed in the center. . In the case of storing an odd number of pieces, the cutting start line may be shifted to a place where the maximum depth gap of the filler exists.
[0044]
Next, as shown in FIGS. 4 and 5, the operator inserts his hand into the space E and, at the same time, grips the tearing start pieces 12, 13 and tears them toward both ends (in the direction of the arrow).
[0045]
By such a tearing operation, the actual tearing is carried over from the tearing start pieces 12 and 13 to the tearing strip 4 and the tearing as shown in FIGS. 6 and 7 is continuously performed. Then, the tear band 4 is torn until reaching the final end of the inner flap 31, so that the upper and lower portions of the box are finally divided into trays.
[0046]
【The invention's effect】
As described above, the present invention relates to a wrap-around packaging box including a band-shaped body formed having a top plate, a bottom plate, and side plates connecting these, and an inner flap and an outer flap. In a substantially central portion of the side plate, a pair of tear start pieces formed at a constant distance are formed, and opposing ends of the pair of tear start pieces are fixed at the predetermined distance. Are substantially connected by a linear cut start line formed therein, and cut off the linear cut start line. Thereafter, the pair of tear start pieces are respectively directed from the center of the side plate to both ends. As a result, the upper and lower sides of the box are separated from each other, and the box separating operation for forming the tray (pulling the band) is performed. Can work) there is an effect that can be performed easily and reliably.
[Brief description of the drawings]
FIG. 1 shows an example of a development view of a packaging box of the present invention.
FIG. 2 is a perspective view of the assembled box original paper developed as shown in FIG. 1;
FIG. 3 is a schematic perspective view showing a box dividing operation for forming a tray over time.
FIG. 4 is a schematic perspective view showing a box cutting operation for forming a tray over time.
FIG. 5 is a schematic perspective view showing a box dividing operation for forming a tray over time.
FIG. 6 is a schematic perspective view showing a box cutting operation for forming a tray over time.
FIG. 7 is a schematic perspective view showing a box cutting operation for forming a tray over time.
FIG. 8 is a partially enlarged view illustrating the configuration in the vicinity of a pair of tear start pieces in order to explain the configuration.
FIG. 9 is a schematic perspective view schematically showing a box cutting operation for forming a tray according to the related art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Packaging boxes 4, 5 ... Tearing strips 11, 15 ... Side plates 12, 13, 16, 17 ... Tearing start piece 14, 18 ... Linear cutting start line 21 ... Bottom plate 25 ... Top plate 31, 35 ... Inner flap 41 ... Lower side outer flap 45 ... Upper side outer flap

Claims (7)

Top plate, bottom plate, and a band-shaped body formed having side plates connecting them, and a wrap-around packaging box including an inner flap and an outer flap,
At a substantially central portion of the side plate, a pair of tear start pieces formed at a certain distance are formed,
Opposite ends of the pair of tear start pieces are substantially connected by a linear cut start line formed within the predetermined interval,
The linear cutting start line is cut off, and thereafter, the pair of tearing start pieces are respectively drawn from the center of the side plate toward both ends, thereby removing the tear strip body connected to the tearing start piece. A packaging box characterized in that the upper and lower sides of the box are separated from each other. The packaging box according to claim 1, wherein opposing ends of the pair of tear-starting pieces have a curved portion that is close to the opposing side, and the curved portions are connected by a linear cut-off start line. 3. The linear cut-off start line is connected to a position of not less than ３ Hw and not more than ／ Hw from below the curved portion, assuming that the height of the tearing start piece at the facing portion is Hw. 4. Packaging box. After cutting off the linear cut start line, the cut start line is provided as a lower end portion, and a part of the side plate located above the cut start line is turned up to secure a space for gripping the pair of tear start pieces. The packaging box according to any one of claims 1 to 3, wherein: The packaging box according to any one of claims 1 to 4, wherein a length of the linear cutting start line corresponding to the predetermined distance is 60 to 100 mm. The pair of tear-starting pieces are respectively connected to a cut-off band formed on a side surface portion and an inner flap connected thereto so that the upper and lower sides of the box are separated from each other. The packaging box described. The linear cutting start line corresponding to the predetermined distance is formed at a substantially central portion of the side plate, and a maximum depth gap of the filling in the packaging box exists at the substantially central portion thereof. Item 7. A packaging box according to any one of Items 6.

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