JP4383209B2 - carton - Google Patents

Description

  The present invention relates to a carton that houses a plurality of articles such as cans, and more particularly to a technique for improving safety when opening a carton.

  2. Description of the Related Art Conventionally, cartons for storing a plurality of articles such as beverage cans such as soft drinks for distribution and use by consumers have been provided. When a consumer purchases such an article in a carton unit, the consumer pulls the cut panel formed on the top of the carton to break the zipper, destroys the carton, and takes out the article.

  Generally, when a carton is broken by pulling a strip-shaped cut panel with weakened lines such as zippers and perforations formed by punching straight at both ends, the weakened lines that should be originally broken do not break, The broken line propagated toward the center of the cut panel, which was a problem.

  In order to solve such a problem, a zipper composed of a plurality of rectangular short slits has been proposed (for example, see Patent Document 1). According to such a zipper, one of the two sides constituting the short slit shape is punched along the breaking direction, and the other side is the center of the cut-out panel with respect to the direction in which the zipper extends. Since the rupture occurs from the predetermined direction toward the center portion, the rupture line is formed by the intersection of the rupture line and the short slit inclined toward the center side. By guiding in the original direction and repeating this process, the fracture can be performed in a desired path.

  FIG. 1 shows a carton based on such a conventional technique. When opening the carton, the finger hook tab 35 (breaking start portion) formed on the cut panel 16 is grasped and pulled upward or toward the rear end of the carton. As a result, breakage occurs from both ends of the finger hanging tab 35, and this breakage propagates to the first short slit 56 formed closest to the finger hanging tab 35, and with the further tearing of the finger hanging tab 35, The short slit is torn and breaks at the rear end of the first short slit. This breakage further propagates to the second short slit, and in the same manner, the breakage propagates sequentially between the adjacent short slits to break the zipper 51b, and the carton is opened.

US Pat. No. 3,747,801 (drawings, abstract)

  However, when such a cut-out panel 16 is broken along the zipper 51b, for example, as shown in FIG. 2 (B), the zipper 51b is broken among the plural short slits 56 forming the zipper 51b. The sharp protrusion 55 remains at the cut end of the short slit formed in the direction inclined from the direction. Moreover, since the short slit is formed to be inclined toward the center of the cut panel 16 as described above, the protrusion 55 is not formed on the cut panel 16 to be removed, and the top wall of the carton body. It remains on the panel 13 side. Further, since the carton is generally formed of hard paper such as cardboard, the projections may hurt the hand of the person who opens the carton.

  The present invention has been made in view of the above circumstances, and a carton and a carton blank in which sharp protrusions are prevented from being formed in a carton when the cut panel is removed, and safety and convenience are improved. The purpose is to provide.

The present invention is a carton for holding a plurality of articles such as cans, and the carton includes a plurality of panels including a bottom wall panel, a side wall panel, and a top wall panel for forming a cylindrical structure, and the top wall panel is provided with a cut panels delimited on both sides by a pair of zipper to break upon opening the carton, each of the pair of zipper, first being embossed from one side of the carton in the thickness direction of the carton 1 and semi-out line and made from the second half cutting lines that are embossed from the other surface of the carton in the thickness direction of the carton, the first and second half-broken lines directed apart from the direction parallel to each other extending Mashimashi, at least one of the first and second half-broken lines Ri semi Broken lines der continuous waveform, each of the pair of zipper, the one end portion of the cut panel, first half Cut line and second half cut A break starting point that is an intersection with the line, a break end point that is an intersection of the first half-cut line and the second half-cut line at the other end of the cut-out panel, and a pair of zippers each extends spread out from one another from the fracture starting point, then extend parallel to each other, then are the extending Mashimasu characterized Rukoto to failure end point converge with each other.

  In the carton having the above-described configuration, the half-cut line is formed in a continuous waveform, so that the end of the carton body and / or the end of the cut-out panel after the break are formed in a waveform. Therefore, since the sharp protrusion is not formed when the cut panel is removed, there is no possibility that the unsealed person will be injured. Further, since the half-cut lines forming the zipper are formed by stamping from the front and back of the carton so as to be separated from each other, the zipper breaks in a state where the separated portion is peeled off. Therefore, the end part of the carton body after breaking and the end part of the cut-out panel are thinner than other parts of the carton. Therefore, the injured person can be prevented.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 3 shows a blank made of cardboard or similar foldable sheet material for forming a carton for containing a plurality of articles such as cans. In FIG. 3, the blank 10 includes a first bottom wall panel 11, a first side wall panel 12, a top wall panel 13, a second side wall panel 14, and a second bottom wall panel 15, which are crease lines. It is connected continuously by 21, 22, 23, 24 so that it can be bent. These panels 11 to 15 form a rectangular cylindrical body, and various panels and flaps described below are formed on the edges of the panels 11 to 15.

  On the front end side (left side in FIG. 3) and rear end side (right side) of the first side wall panel 12 and the second side wall panel 14, a plurality of folding panels 32 are formed to be foldable via the crease line 25. Yes. In addition, on the front end side and the rear end side of the carton 11 to 15, an article support panel 33 is formed so as to be foldable via the crease lines in a state of straddling the crease lines 21, 22, 23, 24. These article support panels 33 are hooked on and supported by the upper and lower ends of the contents such as cans in the assembled state of the carton, and prevent the contents from falling off the carton.

  The first bottom wall panel 11 is formed by punching a plurality of engagement flaps 31 that become joints when assembling the carton, and is foldably connected to the first bottom wall panel 11 via a crease line, A plurality of engagement flap receiving portions 41 for receiving these engagement flaps 31 are formed in the second bottom wall panel 15 by punching.

  The top wall panel 13 has a half cut line 52 stamped in the thickness direction of the carton blank from one surface of the carton blank, and a half stamped in the thickness direction of the carton blank from the other surface of the carton blank. A cut panel 16 is formed in which cut lines 53 are formed at both ends. Half-cut lines 52 and 53 are formed in a continuous waveform, and are stamped from the surfaces facing each other. The half-cut lines 52 and 53 are separated from each other and extend in parallel directions. The part delimited by the half-cut lines 52 and 53 is a peeling part 54, and this part peels when the zipper breaks.

  At the front end of the carton of the cut-out panel 16, a finger tab 35 serving as a break starting point for opening the carton is formed. Further, a gripping means 34 is punched and formed at the center of the cut panel 16, and one side is foldably connected to the cut panel 16 via a crease line. The user can insert and hold a finger into the gripping means 34 and carry the carton.

  A continuous folding operation is performed to assemble the carton from the blank shown in FIG. The bending operation is performed without reversing or rotating the blank or carton with a linear machine line. The following shows the procedure, but the present invention is not limited to the following examples.

  First, an article such as a can is placed on the top wall panel 13 placed horizontally. At this time, it is normal to place the can on the top wall panel 13 with the upper end of the can facing down, but there is no particular limitation. Next, the first side wall panel 12 and the second side wall panel 14 are moved vertically upward along the crease lines 22 and 23 while the folding panel 32 is bent 180 degrees inward in the carton along the crease line 25 and closely attached to the side wall panel. The side wall panels 12 and 13 are closely attached to the side surfaces of the articles. Subsequently, the first bottom wall panel 11 and the second bottom wall panel 15 are bent at 90 degrees with respect to the first side wall panel 12 and the second side wall panel 14 along the crease lines 21 and 24, respectively, to the lower end of the can. The second bottom wall panel 15 and the first bottom wall panel 11 are overlapped in this order to form a rectangular cylindrical body having both ends opened. The engagement flap 31 formed on the first bottom wall panel 11 is pressed with, for example, a finger to insert the engagement flap 31 into the engagement flap receiving portion 41, and the first bottom wall panel 11 and the second bottom wall panel 15. Join. Instead of joining by the engagement flap 31, a joining method such as gluing can be arbitrarily selected. Thus, a package in which a plurality of cans are loaded in a carton is completed (see FIG. 7).

  In order to take out the can from the carton, the finger hook tab 35 formed on the cut panel 16 is grasped and pulled upward or toward the rear end of the carton. As a result, breakage occurs from breakage starting portions at both ends of the finger hook tab 35, and this breakage propagates to the half-cut lines 52 and 53. As the finger tab 35 is further torn, peeling occurs at the peeling portion 54 formed between the half-cut lines 52 and 53. This peeling propagates over 54 and the carton is opened (see FIG. 8).

  In the conventional carton shown in FIG. 1, one side of the short slit 56 constituting the zipper 51b is inclined toward the center of the cut panel 16 with respect to the extending direction of the zipper 51b. Therefore, as shown in FIG. 9, a large number of sharp protrusions 55 are formed at the end of the top wall panel 13 after the breakage, which causes injury to the unsealed hand. On the other hand, in the carton of this invention, the edge part of the top wall panel after opening is a waveform as shown to FIG. 10 (A). Therefore, it does not cause an injury by rubbing the hand of the unsealed person, which is preferable.

  In the present invention, as shown in the carton blank of FIG. 4, the half-cut line 52 may be a continuous straight line. Also by such an aspect, like the said aspect, as shown to FIG. 10 (B), the edge part of the top wall panel after opening is a waveform. Therefore, it does not cause an injury by rubbing the hand of the unsealed person, which is preferable.

  The depth of the cut of the half-cut line stamped on the carton blank is not particularly limited, but if the cut is too shallow, the strength of the carton is improved, but the half-cut line breaks and the peeled portion is not peeled off when opened. On the other hand, if the cut is too deep, the break of the half-cut line and the peeling of the peeled portion can be suitably performed, but the strength of the carton is lowered, and the carton is unsealed during transportation or the like. In practice, it is necessary to appropriately determine the cutting depth in consideration of such conditions.

  In the present invention, the waveform constituting the half-cut line of the waveform can be an arbitrary shape, but it is particularly preferable that the peak and valley are arcuate. According to such an embodiment, the end portion of the top wall panel after opening is not formed with sharp protrusions and is rounded, and it is preferable that the opening person's hand is not rubbed to cause injury. is there.

  In the present invention, as shown in FIG. 5 and FIG. 6, the half-cut lines are spread apart from the starting point of the break, and then extend parallel to each other, and then converge and extend to each other to break. It is also possible to form an end point and to form the break starting point and break end point symmetrically. By setting it as such an aspect, the finger hook tab 35 is formed in both the front-end side and rear-end side of a carton, and it becomes possible to reversely break a half-cut line from a break end point toward a break start point. Thereby, it is not necessary to confirm the breaking direction at the time of opening, and the carton which can be opened from any direction can be provided.

  The terms used in the above description for directions such as top, bottom, end, tip, back, inside, and outside do not limit each panel to such a direction, but simply distinguish the panels from each other. It is only for the purpose. The term crease line does not necessarily refer to a single crease line, and can easily be one or more score lines, for example lines perforated or thinned by press embossing, etc. without departing from the scope of the present invention. It may be a line that bends or bends. The present invention can also be applied to cartons of articles of various arrangements without departing from the scope of the invention.

  As described above, according to the present invention, it is possible to provide a carton and a carton blank for storing articles with improved safety and convenience when opened.

It is a perspective view which shows the conventional carton in the state which accommodated the articles | goods. It is a schematic diagram which shows the edge part of the conventional carton, (A) shows before a zipper fracture | rupture, (B) shows after a zipper fracture | rupture. It is a top view which shows the carton blank of this invention. It is a top view which shows the carton blank of this invention. It is a top view which shows the carton blank of this invention. It is a top view which shows the carton blank of this invention. It is a perspective view which shows the carton of this invention of the state which accommodated the articles | goods. It is a perspective view which shows the opening method of the carton of FIG. It is a schematic diagram of the projection part formed in the conventional carton. It is a schematic diagram of the uneven | corrugated | grooved part formed after the fracture | rupture of the carton of this invention.

Explanation of symbols

10 carton blank
DESCRIPTION OF SYMBOLS 11 1st bottom wall panel 12 1st side wall panel 13 Top wall panel 14 2nd side wall panel 15 2nd bottom wall panel 16 Cut-off panel 21, 22, 23, 24, 25 Fold line
31 Engagement flap 32 Folding panel 33 Article support panel 34 Grasping means 35 Finger tab 41 Engagement flap receiving part 51a, 51b Zipper 52, 53 Half-cut line 54 Peeling part 55 Projection part 56 Short slit

Claims (2)

A carton for holding a plurality of articles such as cans,
The carton includes a plurality of panels including a bottom wall panel, a side wall panel, and a top wall panel for forming a cylindrical structure,
The top wall panel includes a cut-out panel that is delimited on both sides by a pair of zippers that break when the carton is opened,
Each of the pair of zipper from one side of the carton the carton thickness direction in the first half-broken line and the carton from the other surface of the carton thickness direction to a second, which is embossed with the embossing Consisting of half-cut lines,
The first and second half-cut lines extend away from each other in a parallel direction;
It said at least one of the first and second half-broken lines Ri semi Broken lines der continuous waveform,
Each of the pair of zippers has, at one end of the cut panel, a break starting point that is an intersection of the first half cut line and the second half cut line, and the other of the cut panel At the end, it has a break end point that is the intersection of the first half-cut line and the second half-cut line,
Further, each of the pair of zipper, extends to spread out from one another from the fracture starting point, then extend parallel to each other, followed by extension Mashimasu wherein Rukoto until the broken end point converge with each other And carton.   The carton according to claim 1, wherein the corrugated peaks and valleys constituting the corrugated half-cut line are arcuate.

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