JP2006082850A - Conical package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conical package which ensures that its circumferential part is torn out to allow an upper sealing part to be removed in a fine manner. <P>SOLUTION: The conical package comprises an unsealing tab 2 formed on a conical circumferential wall, a first break line 3 on the side of a cone apex 26, and a second break line 4 on the side of a larger-diameter part, the break lines 3, 4 extending circumferentially on the circumferential wall surface across a gap determined by the tab 2. The conical package is unsealed by tearing away the circumferential portion between the first and second break lines 3, 4, which is provided with auxiliary cut lines 5a, 5b that approach the second break line 4 as they go away from the tab 2. Even if an actual tearing line deflects from the second break line 4 toward the first break line 3, the deflecting tearing line is guided along the auxiliary cut lines 5a, 5b to go back to the second break line 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a conical package for use in packaging ice cream, confectionery, etc. that is eaten by holding a conical cone portion. More specifically, the present invention relates to a conical package that can be opened by pulling a knob provided on a side surface of the cone.

  Conventionally, a conical package that wraps ice cream, confectionery, etc. by rolling the wrapping paper into a conical shape and sealing the upper end portion by bringing them together in a radial fashion and sealing them (for example, patents) is known. Reference 1).

  A blank 30 constituting the conical package of Patent Document 1 is shown in FIG. The conical blank 30 includes an opening tab (a knob) 16 provided on one side, and a first breaking line 18 and a second breaking line 22 formed so as to extend in the circumferential direction from the upper and lower ends thereof. Have. FIG. 8 shows a packaged state where the opening tab 16 can be broken along the peripheral wall in the direction of arrow A.

  In FIG. 7, the first breaking line 18 is formed in an arc shape with the vertex 26 of the blank 30 as the center. On the other hand, the second breaking line 22 is not concentric with the first breaking line 18, but is formed so as to move away from the first breaking line 18 as the breaking operation proceeds. Thereby, the break line along the 2nd breaking line 22 advances spirally from the position of the tab 16, As a result, the upper sealing part 32 can be removed favorably.

JP 2001-171643 A

  However, in the above-mentioned conical package, the actual break line does not necessarily advance upward spirally along the second breaking line 22. In particular, in the vicinity of the upper sealing portion 32 of the package body, the conical circumferential surface often has a complicated uneven shape due to the influence of the three thermally bonded portions formed radially, and this causes break lines. It is conceivable that the second breaking line 22 deviates from the second breaking line 22 and proceeds toward the first breaking line 18. If such a thing occurs, it will become meaningless to form the 2nd breaking line 22 away from the 1st breaking line 18 after all, and it becomes impossible to remove the upper sealing part 32 favorably. .

  In view of the above-described conventional problems, the present invention provides a conical packaging body that can be opened by tearing the conical peripheral wall portion, and the conical packaging that reliably tears the peripheral wall portion so that the upper sealing portion can be satisfactorily removed. The purpose is to provide a body.

  The present invention was conceived in order to effectively solve the above problems, and provides a conical package having the following features.

  The conical package of the present invention includes an opening knob provided on a conical peripheral wall, and a first fracture on the apex side of the cone extending in the circumferential direction on the peripheral wall surface with the knob interposed therebetween. And a second breaking line on the large-diameter side. The peripheral wall part between the first breaking line and the second breaking line is torn and opened. And the auxiliary | assistant cut line extended in the direction approaching a 2nd break line as it leaves | separates from a knob | pick part is provided in the surrounding wall part between a 1st break line and a 2nd break line.

  In the conical package of the present invention having the above-described configuration, even when the actual breaking line deviates from the second breaking line toward the first breaking line, the deviating breaking line is guided to the auxiliary breaking line, Returned to the second breaking line. Therefore, it can be surely broken along each breaking line, and the opening operation can be performed easily and reliably.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
<< First Embodiment >>
FIG. 1 is a perspective view of a conical package 1 according to the first embodiment of the present invention. The packaging body 1 is formed by concentrating the substantially fan-shaped packaging material (blank) 10 shown in FIG. 2 in a conical shape to adhere both side ends, and three adhesive portions 7 formed radially at substantially equal intervals. Thus, the large diameter side is sealed (upper sealing portion 32).
Although FIG. 1 shows an example in which three bonding portions 7 are formed, the present invention can be applied to a case where the number of bonding portions 7 is four or more.

On the conical peripheral wall of the package body 1, a knob part 2 for opening is formed, and two breaking lines are provided so as to sandwich the knob part 2. That is, the first break line 3 on the side close to the conical vertex 26 and the second break line 4 on the large diameter side located on the upper side in FIGS. 1 and 2.
The first breaking line 3 is formed in an arc shape with the conical vertex 26 as the center. On the other hand, the second breaking line 4 is formed in a substantially spiral shape so as to gradually move away from the first breaking line 3 as the distance from the knob 2 increases.
The conical package 1 can be opened by picking the knob 2 and breaking the peripheral wall portion between the first breaking line 3 and the second breaking line 4.

  Two auxiliary cut lines 5a and 5b are provided on the peripheral wall portion between the first break line 3 and the second break line 4. Each auxiliary cutting line 5a, 5b extends in a direction approaching the second breaking cutting line 4 as the distance from the knob 2 increases. The operation of the auxiliary cutting lines 5a and 5b is as follows.

≪Operation of auxiliary cutting line≫
FIG. 3A shows the state of FIG. From this state, the knob portion 2 of the conical package 1 is grasped, and then it is torn and opened in the lateral direction. At that time, for the first breaking line 3, the actual breaking line is favorably broken along the breaking line 3, but for the second breaking line 4 on the upper side, the peak portion in the vicinity of the sealing portion 32. Due to the influence of 8 and the valley 9, the actual break line is likely to deviate downward from the second break line 4 (that is, in the direction toward the first break line 3).
That is, as shown in FIG. 3 (b), on the descending slope beyond the peak portion 8a, the actual break line does not tear along the second break line 4, and the point A on the second break line 4 May flow downward. Even in that case, since the auxiliary cutting line 5a exists, the actual breaking line that has flowed downward is guided by the auxiliary cutting line 5a and proceeds from the point B toward the second breaking line 4, and the second breaking line. 4 will join. Thereafter, the actual breaking line proceeds along the second breaking line 4.
After that, the actual breaking line reaches the next peak 8b. However, when the breaking line flows downward on the down slope beyond the peak 8b, the second auxiliary cutting line 5b By the same principle, the broken line that has flowed is returned to the second breaking line 4.

  In the example of FIG. 1, since there are three crests 8, it is preferable to form three auxiliary cutting lines (second embodiment), but about half of the peripheral wall (180 °) along the second breaking cutting line 4. 3), the upper sealing portion 32 is often removable, so it is not always necessary to provide three auxiliary cutting lines, and only one auxiliary cutting line may be provided, or four or more auxiliary cutting lines may be provided. Also good. The greater the number of auxiliary cutting lines, the greater the flow prevention effect.

In FIG. 2, the region on the left side of the alternate long and short dash line M is an overlap when the conical peripheral wall is wound, and the front surface side and the back surface side of the packaging material (blank) 10 are bonded in the entire region. It becomes. The auxiliary cutting line 5a closest to the knob 2 has a starting point 5a 'in the overlapping area or in the vicinity thereof.
When the tearing operation is started by picking the knob 2, the tear line easily flows downward, and when the position of the radially formed adhesive portion 7 is not determined, the above-described peak portion is the knob 2. In some cases, the tear line is likely to flow downward. In such a configuration, the flow at the start of the tearing operation can be reliably corrected.

≪Auxiliary cutting line form≫
Next, the form of the auxiliary cut lines 5a and 5b formed in the packaging material 10 will be described. FIG. 4 is an enlarged view of the portion of the second breaking line 4 and the auxiliary cutting line 5b in FIG.
In FIG. 4, the alternate long and short dash line A indicates the extending direction of the second breaking cut line 4, and the alternate long and short dash line B indicates the extending direction of the auxiliary cut line 5b. Moreover, the dashed-dotted line C has shown the extension direction of the 2nd part 102 of the auxiliary | assistant cut line 5b mentioned later.

The auxiliary cut line 5b is composed of a large number of cuts 100 formed intermittently at a predetermined interval, and each cut 100 is composed of a first part 101 and a second part 102 which are connected in series.
The first portion 101 extends along the extending direction of the auxiliary cutting line 5b indicated by the alternate long and short dash line B. On the other hand, the second portion 102 is bent from the terminal end side of the first portion 101 located on the opposite side to the knob 2 and extends in the direction indicated by the alternate long and short dash line C.

An angle β formed by the alternate long and short dashed line C and the alternate long and short dashed line A (that is, an angle β formed by the second portion 102 of the auxiliary cutting line 5b and the second fractured cutting line 4) is an angle α formed by the alternate long and short dashed line A and the alternate long and short dashed line B. That is, it is configured to be larger than the angle α) formed by the second breaking line 4 and the auxiliary cutting line 5b.
With such an angle configuration, the actual breaking line that flows downward from the second breaking line 4 can be received by the auxiliary cutting line 5b, and the received breaking line can be transferred to the second breaking line 4 on the upper side. It can be guided to return. In addition, it is preferable to set the angle (alpha) which the 2nd breaking cut line 4 and the auxiliary | assistant cut line 5b make to 15 to 45 degree | times.

  In the illustrated example, both the first portion 101 and the second portion 102 of the cut 100 are linear and both are bent to form an L shape. However, each cut 100 has a specific shape. For example, the first portion 101 may be arcuate and the overall shape of the cut 100 may be J-shaped.

  Although the form of the auxiliary cutting line 5b has been described above, the same applies to the auxiliary cutting line 5a.

≪Blank laminated structure and broken cut line structure≫
The laminated structure of the packaging material (blank) 10 for producing the conical packaging body 1 is “plastic film / aluminum foil / paper / thermoadhesive resin layer” from the outer surface side. As the plastic film, biaxially stretched polyethylene terephthalate or biaxially stretched polypropylene can be used.
The first breaking line 3, the second breaking line 4, the auxiliary cutting line 5a, and the auxiliary cutting line 5b are formed in a state where they penetrate through the plastic film, the aluminum foil, and the paper and are cut to the middle of the thermal adhesive resin layer. Yes. That is, each cutting line does not penetrate the entire packaging material 10, but is in a half-cut state. By setting it as a half-cut state, the food inside can be blocked from the outside, which is preferable in terms of hygiene and can reduce the risk of inadvertent breakage.
Since the heat-adhesive resin layer has a relatively small tear strength, if the plastic film, the aluminum foil, and the paper are allowed to penetrate, the heat-adhesive resin layer can be easily torn along each cut line.

  In addition, when the aluminum layer is included in the laminated structure, the above-described unevenness that becomes the ridges or valleys tends to occur on the peripheral wall surface in the vicinity of the radial bonding portion due to the plasticity of aluminum. Or the unevenness | corrugation is easy to be formed deeply. When such unevenness occurs, the actual break line is likely to deviate from the second break cut. Therefore, it is particularly effective to provide auxiliary cuts as in the present invention.

<< Second Embodiment >>
FIG. 5 shows a packaging material (blank) 10 ′ used for the conical packaging according to the second embodiment of the present invention.
In the first embodiment, the two auxiliary cutting lines 5a and 5b are provided, but in the second embodiment, the three auxiliary cutting lines 5a, 5b and 5c are provided. The function and form of each auxiliary cutting line and the laminated structure of the packaging material are as described in the first embodiment.

  In the present invention, the number of auxiliary cutting lines may be one or plural, but the number of the radial adhesive portions 7 constituting the large diameter side upper sealing portion 32 shown in the upper part of FIG. It is preferable to provide as many auxiliary cutting lines as equal. As described above, it is sufficient that the upper sealing portion 32 can be removed by opening about half (180 °), so that the upper sealing portion 32 may be formed at intervals or at intervals.

  In general, since the radial adhesive portions 7 constituting the upper sealing portion 32 are arranged at equal intervals, the peak portions 8 and the valley portions 9 are also present at equal intervals. Therefore, it is preferable to arrange the auxiliary cutting lines 5a to 5b at equal intervals.

  About this space | interval, when it winds to cone shape, one auxiliary | assistant cut line will exist in the surrounding wall part corresponding to 120 degrees (namely, 360 degrees / 3 = 120 degrees) of central angles. And each auxiliary | assistant cut line exists in the surrounding wall part corresponding to a half central angle (namely, 120 degrees / 2 = 60 degrees) in each surrounding wall part. This is based on the idea that there are as many valleys as there are peaks and it is unlikely that the actual break line will flow downward at the valleys.

  When the upper sealing portion 32 is composed of four radial adhesive portions arranged at equal intervals, it corresponds to a central angle of 90 ° (360 ° / 4 = 90 °) in the same way as described above. One auxiliary cutting line exists in the peripheral wall portion, and each auxiliary cutting line extends to the peripheral wall portion corresponding to a half central angle (90 ° / 2 = 45 °) in each peripheral wall portion.

Generally speaking, when there are n radial adhesive portions 7 at equal intervals, the number of auxiliary cut lines is also n. And each auxiliary | assistant cutting line will be arrange | positioned at equal intervals on a cone-shaped surrounding wall, and will extend on the surrounding wall part corresponding to the center angle 360 degrees / 2n.
That is, since there is a high possibility that a tear line flows from the peak to the deepest part of the valley, the circumferential interval between the auxiliary cut lines (the width of the portion where the auxiliary cut lines are not formed) is 360 at the maximum. If it is set to ° / 2n and it is the space | interval less than that, even if it deviates from the 2nd breaking line 4, it can catch the said broken breaking line fundamentally.

  In addition, when providing a some auxiliary | assistant cut line, it is preferable to comprise so that the angle | corner which each auxiliary | assistant cut line and the 2nd fracture | rupture cutting line 4 make may become so large that the auxiliary cut | disconnection far from the knob | pick part 2. That is, as shown in FIG. 5, if the angles formed by the auxiliary cutting lines 5a, 5b, and 5c and the second breaking cutting line 4 are A, B, and C, respectively, the relationship of A <B <C may be satisfied. preferable. The reason for this is considered that the longer the torn part, the longer the distance from the knob 2 gripped by the hand, the easier it is for the downward force to act, and the greater the possibility of deviation. Because. Even in such a case, the auxiliary cutting line farther from the knob 2 is formed so that the angle becomes deeper in order to reliably receive the broken tear line.

<< Third Embodiment >>
FIG. 6 shows a packaging material (blank) 10 ″ used for the conical packaging according to the third embodiment of the present invention.
In the third embodiment, four auxiliary cut lines 5a, 5b, 5c, 5d are provided, and the first break line 3 and the second break line 4 are partially omitted as will be described later. This is different from the first embodiment and the second embodiment. The function and form of each auxiliary cutting line and the laminated structure of the packaging material are the same as those in the first embodiment and the second embodiment.

About the 1st breaking line 3 and the 2nd breaking line 4, a part of each breaking line is abbreviate | omitted in the location shown by 3 'and 4' near the knob part 2, respectively. This is to prevent inadvertent breakage other than during breakage.
In addition, each auxiliary cutting line 5a to 5d extends to a position where it merges with the second breaking line 4, and the second breaking line 4 is partially omitted in the joining region 4 '', and each auxiliary cutting line 5a to 5d. The upper end is substantially continuous with the second breaking line 4. By adopting such a configuration, it is possible to prevent inadvertent breakage as described above, and to reliably return the actual break line that has flowed downward onto the second break line 4.

As can be seen from the above description, in the present invention, when the actual breaking line flows downward from the second breaking line 4, the broken line that has flowed on the second breaking line 4 is utilized by using the auxiliary breaking line. There is a feature in returning to. Therefore, the formation position of the 2nd breaking line 4 itself is not limited to a specific thing in this invention.
However, since it is premised that the upper sealing portion 32 (see FIG. 1) can be removed satisfactorily when it is properly broken along the second breaking line 4, the second breaking line is at least the contents. It is preferable to extend upward beyond the largest diameter portion of the conical object.

The perspective view of the conical packaging body which concerns on 1st Embodiment of this invention. The top view of the packaging material used for the conical packaging body of FIG. The figure explaining the opening method of the conical package of FIG. FIG. 3 is a partially enlarged view of FIG. 2. The top view of the packaging material used for the conical packaging body which concerns on 2nd Embodiment of this invention. The top view of the packaging material used for the conical packaging body which concerns on 3rd Embodiment of this invention. The figure explaining a prior art example. The figure explaining a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conical package 2 Knob part 3 1st breaking line 4 2nd breaking line 5a, 5b, 5c, 5d Auxiliary cutting line 6 Side edge heat bonding part 7 Radial heat bonding part 8 Mountain part 9 Valley parts 10, 10 ', 10 '' Packaging material (blank)
16 Tab for opening (pick part)
18 First breaking line 22 Second breaking line 26 Conical vertex 30 Packaging material (blank)
32 Upper sealing part

Claims (7)

An opening knob (2) provided on the conical peripheral wall, a first breaking line (3) on the apex side of the cone extending in the circumferential direction on the peripheral wall surface with the knob interposed therebetween, and a large A second breaking line (4) on the radial side,
In the conical package configured to tear and open the peripheral wall portion between the first breaking line (3) and the second breaking line (4),
Auxiliary cutting line (5) extending in a direction approaching the second breaking line (4) as it moves away from the knob (2) is formed on the peripheral wall portion between the first breaking line (3) and the second breaking line (4). A conical package characterized in that it is provided. The conical peripheral wall is formed into a conical shape by bonding a substantially fan-shaped blank (10, 10 ′) in a conical shape and bonding both end portions on top of each other.
The conical package according to claim 1, characterized in that the auxiliary cutting line has a starting point (5a ') at the overlapping portion.   The conical package according to claim 1, wherein a plurality of the auxiliary cutting lines (5a, 5b, 5c) are formed at intervals in the circumferential direction of the conical peripheral wall.   The conical package according to claim 3, characterized in that the angle formed by the auxiliary cutting line (5a, 5b, 5c) and the second breaking cutting line (4) is larger as the auxiliary cutting line is farther from the knob (2). . The conical package according to claim 3, wherein the large diameter side of the conical peripheral wall is sealed with n adhesive portions (7) arranged radially at substantially equal intervals,
The plurality of formed auxiliary cutting lines (5a, 5b, 5c) are formed to extend in the circumferential wall portion with a central angle interval of 360 ° / 2n or less in the circumferential direction. , Conical packaging. The auxiliary cut line (5a, 5b, 5c) is composed of a number of cuts (100) formed intermittently at a predetermined interval.
Each incision (100) is composed of a first part (101) and a second part (102) arranged in series,
The first portion (101) extends along the extending direction of the auxiliary cutting line (5a, 5b, 5c),
The angle formed by the second portion (102) and the second breaking line (4) is larger than the angle formed by the auxiliary cutting line (5a, 5b, 5c) and the second breaking line (4). The conical package according to any one of claims 1 to 5. The conical peripheral wall has a laminated structure of plastic film / aluminum foil / paper / thermal adhesive resin layer,
Each of the first breaking line (3), the second breaking line (4), and the auxiliary cutting lines (5a, 5b, 5c) is formed as a half cut that penetrates the plastic film / aluminum foil / paper. The conical package according to any one of claims 1 to 6, characterized in that

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