JP7385346B2 - gable top container - Google Patents

Description

The present invention relates to a gable-top container for storing liquid beverages such as milk, milk drinks, and juices, and gel-like foods such as yogurt and jelly.

BACKGROUND ART Conventionally, as a paper container for beverages, such as a milk carton, there is a gable-top container made of a paperboard material with thermoplastic resin laminated on the front and back sides. The gable top type container includes a cylindrical body in which a liquid beverage or the like is stored, and a gable roof connected to the upper end of the cylindrical body. A gable roof is formed by joining a pair of roof panels, a pair of gable panels folded inward between the pair of gable roofs, and the upper ends of the pair of roof panels and the upper ends of the pair of gable panels. It is equipped with a top seal.

As such a gable-top type container, one in which the corners of the cylindrical body are formed into a planar shape is known (see, for example, Patent Documents 1 and 2). By making the corners of the cylindrical body into a planar shape, it is expected that the eye attraction will be improved.

Unexamined Japanese Patent Publication No. 2016-16905 Japanese Patent Application Publication No. 2012-197082

Conventional gable-top containers such as those described in Patent Documents 1 and 2 have a problem in that the corner portions are formed into a planar shape, which reduces the rigidity of the corner portions, thereby reducing the gripability of the container.

An object of the present invention is to provide a gable-top type container that can prevent the gripability of the container from decreasing.

The gable top type container of the present invention includes a cylindrical body, a bottom connected to a lower end of the cylindrical body, and a gable roof connected to an upper end of the cylindrical body, The roof includes a pair of roof panels facing each other, a pair of gable panels facing each other in a direction intersecting the opposing direction of the pair of roof panels and folded between the pair of roof panels, and the pair of roof panels. and a top seal formed by joining the upper end of the panel and the upper end of the pair of end wall panels, and the cylindrical body continues in the circumferential direction of the cylindrical body, and the cylindrical body is continuous at the connecting portion with each other. It includes four body panels that form corners, and a plurality of corner sections that are vertically arranged in the corner sections and have a planar shape. It is characterized in that an intersection point or line of intersection is formed between adjacent body panels with the body panels sandwiched therebetween.

According to the present invention, since the intersection point or the intersection line between the body panels adjacent to each other with the corner in between is formed between the plurality of corner sections provided at the corner section, the intersection point or the intersection line is formed between the corner section sections. can be made into a square shape. Thereby, it is possible to prevent the rigidity of the corner portion from decreasing, so that it is possible to prevent the gripability of the container from decreasing.

In the gable top type container of the present invention, the intersection point or line of intersection between the body panels is provided at a position within a range of 45% or more and 80% or less of the height of the cylindrical body from the bottom. is preferred.

According to the present invention, since the corners can be made into a square shape near the height position where the user tends to grip the gable-top container, the decrease in gripability of the gable-top container can be effectively prevented. can be prevented.

In the gable top type container of the present invention, the corner portion includes two first folded lines that constitute an upper end portion of the corner portion, and that branch from the corner portion and are spaced apart from each other downward. two second folding lines forming a lower end portion and approaching each other downward and merging at the corner; at least one of the first folding line and the second folding line is at the corner of the corner; It is preferable that the angle formed by the straight line connecting the upper end and the lower end is 30 degrees or less.

According to the present invention, since the angle of at least one of the first folding line and the second folding line constituting the end of the corner part is small, the periphery of the end of the corner part may be wrinkled or the corner part may not be wrinkled before forming the container. It is possible to suppress distortion of the gable-top type container panel.

In the gable top type container of the present invention, the corner portion includes two first folded lines that constitute an upper end portion of the corner portion, and that branch from the corner portion and are spaced apart from each other downward. two second folding lines forming a lower end portion and approaching each other downward and merging at the corner; at least one of the first folding line and the second folding line is on the corner side It is preferable that an end portion of the curved portion be formed, and that an angle between a tangent to the curved portion at the corner portion and a straight line connecting the upper and lower ends of the corner portion is 30 degrees or less.

According to the present invention, since the angle of at least one of the first folding line and the second folding line constituting the end of the corner part is small, the periphery of the end of the corner part may be wrinkled or the corner part may not be wrinkled before forming the container. It is possible to suppress distortion of the gable-top type container panel.

The gable-top type container of the present invention is preferably used for storing beverage liquids such as milk, milk drinks, and juices, and gel-like foods such as yogurt and jelly.

According to the present invention, the gable-top container is used to store beverage liquids such as milk, milk drinks, and juices, and gel-like foods such as yogurt and jelly, so that the versatility of the gable-top container can be utilized.

FIG. 1 is a perspective view of a gable-top container according to an embodiment of the present invention. Developed view of a gable-top container. FIG. 3 is a perspective view of a gable-top container according to a modification of the present invention. FIG. 3 is a perspective view of a gable-top container according to a modification of the present invention. FIG. 3 is a perspective view of a gable-top container according to a modification of the present invention.

Hereinafter, one embodiment of the present invention will be described based on the drawings.
In the following description, directions are expressed based on the state in which the gable-top container 1 is erected, as shown in FIG.

FIG. 1 is a perspective view showing a gable-top container 1 according to this embodiment. FIG. 2 is a developed view of the gable-top container 1 (a plan view of the gable-top container panel 10 (also referred to as a carton blank)). The gable-top container 1 is made of a paperboard material with thermoplastic resin laminated on its front and back surfaces, and is used to store liquid beverages such as milk, milk drinks, and juices, and gel-like foods such as yogurt and jelly.
In FIGS. 1 and 2, a gable-top container 1 includes a cylindrical body 2, a bottom 3 connected to the lower end of the cylindrical body 2, and a gable connected to the upper end of the cylindrical body 2. It includes a roof 4 and a spout 5 provided on the gable roof 4.

The cylindrical body part 2 has four body panels 21 to 24 that are continuous in the circumferential direction (horizontal direction) of the cylindrical body part 2 and form corner parts 21A, 22A, 23A, and 24A at mutual connection parts, The corner portion 23A includes a plurality of corner portions 25 and 26 arranged vertically in a plane shape, and a seal panel 27 connected to the body panel 24. The body panels 21 to 24 and the corner portions 25 and 26 form a substantially rectangular cylindrical body 2 by heat-sealing the seal panel 27 to the body panel 21.

The trunk panel 21 and the trunk panel 23, as well as the trunk panel 22 and the trunk panel 24, are connected via trunk vertical fold lines 21B and 22B, respectively, which extend in the vertical direction.
The body panel 22 and the body panel 23 are connected to each other via corner portions 25 and 26.

The corners 21A, 22A, 23A, and 24A are located on straight lines L1 to L4 that connect the corners C41 to C44 of the gable roof 4 and the corners C31 to C34 of the bottom part 3. Note that the straight lines L1, L2, and L4 coincide with the trunk vertical fold lines 21B, 22B, and 24B, respectively.
An intersection point CP between the body panels 22 and 23 adjacent to each other with the corner portion 23A in between is formed between the corner portions 25 and 26 of the corner portion 23A. That is, the body panels 22 and 23 are connected to each other via the intersection point CP, and are in contact with each other on the intersection point CP. The intersection point CP is arranged on the straight line L3, and serves as a node of the corner portion 23A to form a square shape between the corner portions 25 and 26. It is preferable that the intersection point CP is provided at a position within a range of 45% or more and 80% or less of the height of the cylindrical body 2 from the bottom 3. By arranging the intersection point CP in such a range, the corner 23A can be made into a square shape near the height position where the user tends to grasp the gable-top container 1. It is possible to effectively prevent the gripability from decreasing.

The corner section 25 constitutes the upper end of the corner section 25A, and includes two first folding lines 251 that branch from the corner section 23A (straight line L3) and are spaced apart from each other downward, and the lower end of the corner section 25. and a third folding line 253 connecting the first folding line 251 and the second folding line 252. It consists of
Each of the folding lines 251 to 253 is symmetrical with respect to a straight line L3 connecting the upper end (corner C43 of the gable roof 4) and the lower end (corner C33 of the bottom 3) of the corner 23A.
The first folding line 251 and the second folding line 252 are entirely linear including the end on the corner 23A side. It is preferable that at least one of the first folding line 251 and the second folding line 252 forms an angle θ with the straight line L3 of 30 degrees or less. When the angle θ is 30 degrees or less, it is possible to suppress wrinkles around the edges of the corner portions 25 and distortion of the gable-top container panel 10.
The third folding lines 253 are parallel to each other and extend parallel to the straight line L3. The interval between the third folding lines 253, that is, the width A of the corner portion 25 is preferably 10% or more and 40% or less of the interval between the corners 22A and 23A, that is, the width B of the cylindrical body portion 2. In the gable top type container 1, what is called a bulge in which the cylindrical body 2 swells due to the contents stored inside occurs, but by setting the width A of the corner portion 25 within such a range, the bulge can be prevented from forming the cylindrical body 2. The result is the same as when the container is not provided, and it is possible to prevent the gable-top container 1 from becoming a hindrance when storing it in a transport case (also referred to as a crate) or displaying it on a shelf.

The corner section 26 has the same structure as the corner section 25 except that the length is different. Therefore, the corner portion 26 and each of the folding lines 261 to 263 are illustrated with the second 5 from the beginning of the code of the corner portion 25 and each of the folding lines 251 to 253 replaced with 6, and the explanation thereof will be omitted. .

The seal panel 27 is continuous with the body panel 24 via the body vertical fold line 24B.

The bottom part 3 is connected to four bottom panels 31 to 34 that are connected to each other via bottom vertical fold lines 31B, 32B, and 33B, and to the lower ends of the body panels 21 to 24 via bottom horizontal fold lines 31A, 32A, 33A, and 34A. , a seal panel 35 is connected to the bottom panel 34 via a bottom vertical fold line 34B and is connected to the lower end of the seal panel 27.
A pair of valley fold lines 311 and 321 are formed on the bottom panels 31 and 32.

The gable roof 4 includes a pair of roof panels 41, 42 facing each other, and a pair of roof panels 41, 42 facing each other in a direction intersecting the opposing direction of the pair of roof panels 41, 42, and folded between the pair of roof panels 41, 42. The end wall panels 43 and 44, the seal panel 45 that continues to the end wall panel 44 via the upper vertical fold line 44B and the upper end of the seal panel 27, the upper ends 412 and 422 of the pair of roof panels 41 and 42, and the pair of roof panels 41 and 42. A top seal 46 is formed by joining the upper end portions 435, 445 of the end wall panels 43, 44. The pair of roof panels 41 and 42 and the pair of gable panels 43 and 44 are continuous in the horizontal direction in the following order: roof panel 41, gable wall panel 43, roof panel 42, and gable wall panel 44.

The roof panel 41 is connected to the gable wall panel 43 via an upper vertical fold line 41B extending in the vertical direction, and to the body panel 21 via an upper horizontal fold line 41A extending in the horizontal direction. This roof panel 41 includes a valley fold line 411 formed along the horizontal direction, and an upper end portion 412 located above the valley fold line 411.

The roof panel 42 is connected to the gable panels 43 and 44 via upper vertical fold lines 43B and 42B extending in the vertical direction, and to the body panel 22 via an upper horizontal fold line 42A extending in the horizontal direction. This roof panel 42 includes a valley fold line 421 formed along the horizontal direction, an upper end portion 422 located above the valley fold line 421, and a spout mounting hole 423 for mounting the spout 5. .

The end wall panel 43 is connected to the body panel 23 via an upper transverse fold line 43A extending in the horizontal direction. This gable wall panel 43 has an intersection point P1 (corner C41 of the gable roof 4) between a mountain fold line 431 formed along the horizontal direction, an upper vertical fold line 41B and an upper horizontal fold line 43A (corner C41 of the gable roof 4), and an upper vertical fold line 43B and an upper horizontal fold line. A pair of valley fold lines 432 extending from the intersection P2 (corner C43 of the gable roof 4) with the mountain fold line 43A to the mutual intersection P3 located at the center of the mountain fold line 431, The first folding part 433, the second folding part 434 which is provided on both sides of the first folding part 433 (both sides of the first folding part 433 in the horizontal direction) and which are connected to the pair of roof panels 41 and 42, and the mountain fold line 431. and an upper end portion 435 located above.
The upper end portion 435 is provided with a folding line 436 extending upward from the intersection point P3 at its horizontal center, and forms a top seal 46 when folded back along the folding line 436.

The end wall panel 44 is connected to the body panel 24 via an upper transverse fold line 44A extending in the horizontal direction. Since the end wall panel 44 is configured in the same manner as the end wall panel 43, the second symbol 3 from the beginning of the reference numeral of the end wall panel 43 is shown replaced with 4, and the explanation thereof will be omitted.

The gable-top container 1 described above is formed from the gable-top container panel 10 shown in FIG. 2 in the following steps.
First, the seal panels 27, 35, 45 of the gable-top container panel 10 are heat-sealed to the body panel 21, bottom panel 31, and roof panel 41 to form a carton blank. Next, this carton blank is made into a rectangular tube shape. At this time, corner portions 25 and 26 are formed at the corner portion 23A. In this state, while valley-folding the bottom panels 31 and 32 along the valley fold lines 311 and 321, fold them inward between the bottom panels 33 and 34 along the bottom transverse fold lines 31A and 32A, and overlap them with the bottom panels 33 and 34. . Then, the entire overlapping portion of the bottom panels 31 to 34 is heat-sealed to form the bottom portion 3.

Thereafter, while folding back the second folding parts 434, 444 along the valley fold lines 432, 442, the first folding parts 433, 443 are folded inward along the upper transverse fold lines 43A, 44A, and the gable wall is folded between the roof panels 41, 42. Fold in panels 43 and 44. At this time, the roof panels 41 and 42 are folded inward along the upper transverse fold lines 41A and 42A in conjunction with the folding of the end wall panels 43 and 44. Then, the roof panels 41 and 42 are valley folded along the valley fold lines 411 and 421, and the gable wall panels 43 and 44 are mountain folded along the mountain fold lines 431 and 441, and the gables are folded back at the fold lines 436 and 446. Upper ends 435, 445 of wall panels 43, 44 are interposed between upper ends 412, 422 of roof panels 41, 42. Then, the upper end portions 412, 422, 435, and 445 are heat-sealed to each other to form a top seal 46.

According to the embodiment described above, the intersection point CP between the body panels 22 and 23 adjacent to each other with the corner portion 23A in between is formed between the plurality of corner portions 25 and 26 provided on the corner portion 23A. , the corner portions 25 and 26 can be formed into a square shape at the intersection CP. This can prevent the rigidity of the corner portion 23A from decreasing, so that the corner portions 25 and 26 can improve the eye-catching properties and prevent the gripability of the container from decreasing.
Moreover, since the rigidity of the corner portion 23A can be prevented from decreasing, it is possible to suppress the corner portion 23A from being depressed or buckled, and it is possible to prevent the aesthetic appearance of the container from being impaired.

Furthermore, due to the arrangement of the intersection point CP, the corner 23A can be made into a square shape near the height position where the user tends to grip the gable-top container 1, so that the ease of gripping the gable-top container 1 is reduced. This can be effectively prevented.

Moreover, since the angle of at least one of the first folding lines 251, 261 and the second folding lines 252, 262 that constitute the ends of the corner parts 25, 26 is small, wrinkles are formed around the ends of the corner parts 25, 26. Therefore, it is possible to prevent the gable-top container panel 10 from being distorted before the container is formed.

Moreover, since the gable-top container 1 is used to store liquid beverages such as milk, milk drinks, and juices, and gel-like foods such as yogurt and jelly, the versatility of the gable-top container 1 can be utilized.

It should be noted that the present invention is not limited to the above-described embodiments, and the present invention includes modifications, improvements, etc. within a range that can achieve the purpose of the present invention.
For example, the cylindrical body 2 may have a rectangular tube shape with a triangular cross section or a rectangular tube shape with a cross section of five or more corners. In this case, the number of body panels 21 to 24 can be matched to the number of corner sections 21A, 22A, 23A, and 24A.
The cylindrical body 2 is not limited to a rectangular cylindrical shape; for example, the cylindrical body 2 may be partially cylindrical by curving the body panels 21 to 24 or any of them in the circumferential direction of the cylindrical body 2. good. In this case, the number of corner portions 21A, 22A, 23A, and 24A may be two or less, or five or more.
The trunk vertical fold lines 21B, 22B, and 24B are not limited to straight lines, but may be formed in curved shapes.

As shown in FIG. 3, an intersection line CL between the body panels 22 and 23 is formed between the corner portions 25 and 26 of the corner portion 23A, and the body panels 22 and 23 are in contact with each other on the intersection line CL. It's okay. Thereby, the rectangular region of the corner 23A becomes longer, and the strength of the corner 23A can be further increased. Note that the angle θ of the corner portions 25 and 26 in FIG. 3 is larger than that shown in FIGS. 1 and 2.
The corner portions 25 and 26 may be provided at the corner portions 21A, 22A, and 24A other than the corner portion 23A, or may be provided at two or three of the corner portions 21A, 22A, 23A, and 24A. However, they may be provided at all corners 21A, 22A, 23A, and 24A.
Three or more corner portions 25 and 26 may be provided in one corner portion 21A, 22A, 23A, and 24A. In this case, either the intersection point CP or the intersection line CL may be provided between the corner portions 25 and 26, or the intersection point CP and the intersection line CL may be provided together in one corner portion 21A, 22A, 23A, 24A. .
The widths A of the corner portions 25 and 26 may be the same or different.
The corner portions 25 and 26 do not need to be provided with the third folding lines 253 and 263, and may have a configuration in which the first folding lines 251 and 261 are connected to the second folding lines 252 and 262.

The first folding lines 251, 261 and the second folding lines 252, 262 are, for example, like the first folding lines 254, 264 and the second folding lines 255, 265 shown in FIG. The folding lines 256 and 266 and the second folding lines 257 and 267 may be formed of curved lines. The first folding lines 256, 266 and the second folding lines 257, 267 shown in FIG. 5 are all curved parts including the end on the corner 23A side, and the tangent of the curved part at the corner 23A and the straight line L3 are The angle θ formed is 30 degrees or less.
The first folding lines 251, 254, 256, 261, 264, 266 and the second folding lines 252, 255, 257, 262, 265, 267 are not unified in combination with straight lines or curved lines. Alternatively, a straight line and a curved line may be combined. For example, the first folding line 251 made of a straight line and the second folding line 255 made of a curved line may be combined, or the first folding line 264 made of a curved line and the second folding line 264 made of a straight line may be combined. 262 may also be combined.
The first folding lines 251, 261 and the second folding lines 252, 262 may be partially curved.
The first folding lines 254, 256, 264, 266 and the second folding lines 255, 257, 265, 267 may be partially straight portions.
Each of the folding lines 251 to 257 and 261 to 267 does not have to be symmetrical with respect to the straight line L3.
The angle θ with the straight line L3 may be the same between the first folding lines 251, 254, 256, 261, 264, 266 and the second folding lines 252, 255, 257, 262, 265, 267, May be different.
The third folding lines 253 and 263 are not limited to straight lines, but may be formed from curved lines or wavy lines.

In the embodiment, the seal panels 27, 35, and 45 are formed to have the same width, but the present invention is not limited to this, and the seal panels 27, 35, and 45 may be formed to have different widths, or the seal panels 27, 35, and 45 may be formed to have different widths. , 35, and 45 may be formed to have the same width. Further, the seal panels 27, 35, and 45 do not need to have a constant width in the vertical direction, and may partially change the width.

In the embodiment, the upper transverse fold lines 41A, 42A, 43A, and 44A are formed in a straight line, but are not limited to this, and may be formed in a curved line. For example, the upper transverse fold lines 41A, 42A, 43A, and 44A may be downwardly convex curves.
The spout 5 may or may not be provided on the roof panel 41.

The present invention can be applied to various gable-top containers 1 capable of containing liquid beverages such as milk and juice, and gel-like foods such as yogurt and jelly.

DESCRIPTION OF SYMBOLS 1... Gable top type container, 2... Cylindrical body part, 3... Bottom part, 4... Gable roof, 21-24... Body panel, 21A, 22A, 23A, 24A... Corner part, 25, 26... Corner part, 41 , 42... Roof panel, 43, 44... Gable wall panel, 46... Top seal, 251, 254... First folding line, 252, 255... Second folding line, 261, 264... First folding line, 262, 265... Second folding line, 412, 422, 435, 445...upper end, CL...intersection line, CP...intersection point.

Claims (3)

A gable top type container,
a cylindrical body;
a bottom portion connected to the lower end of the cylindrical body;
a gable roof connected to the upper end of the cylindrical body;
The gable roof is
a pair of roof panels facing each other;
a pair of gable wall panels that face each other in a direction intersecting the opposing direction of the pair of roof panels and are folded between the pair of roof panels;
a top seal formed by joining the upper ends of the pair of roof panels and the upper ends of the pair of gable panels;
The cylindrical body portion is
four body panels that are continuous in the circumferential direction of the cylindrical body and form corners at their mutual connection parts;
a plurality of corner portions arranged vertically in the corner portion and each having a planar shape;
An intersection point or a line of intersection between adjacent body panels across the corner portion is formed between the corner surface portions of the corner portion ,
The gable top type, wherein all of the intersection points or lines of intersection between the body panels are located within a range of 45% or more and 80% or less of the height of the cylindrical body from the bottom. container. The corner portion is
two first folding lines that form the upper end of the corner portion and branch from the corner portion and are spaced apart from each other downward;
comprising two second folding lines forming the lower end of the corner, approaching each other downward and merging at the corner;
At least one of the first folding line and the second folding line has an end on the corner side as a straight part, and an angle between the straight part and a straight line connecting the upper and lower ends of the corner is 30 degrees. The gable top type container according to claim 1 , characterized in that: The corner portion is
two first folding lines that form the upper end of the corner portion and branch from the corner portion and are spaced apart from each other downward;
comprising two second folding lines forming the lower end of the corner, approaching each other downward and merging at the corner;
At least one of the first folding line and the second folding line has an end on the corner side as a curved part, and a straight line connecting a tangent to the curved part at the corner and an upper end and a lower end of the corner. 2. The gable-top container according to claim 1, wherein the angle formed by the gable-top container is 30 degrees or less.

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