JP2017013861A - Blank plate and container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blank plate capable of easily producing a container which may be easily held by a consumer.SOLUTION: A plurality of drum panels 14a, 14b, 14c, 14d, 14e constructing a drum part of a container are consecutively arranged with interposed ruled lines 25 comprising projecting parts formed in a projecting manner on the side of inner surface of a laminated product constructing a blank plate 20. In addition, a pair of first sub ruled lines 26 is arranged in a manner where a ruled line between the drum panels is interposed therebetween. The height of projecting part of the pair of first sub ruled lines is smaller than the height of projecting part of ruled line interposed between the pair of first sub ruled lines.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a blank plate for producing a container. The present invention also relates to a container formed by bending a blank plate.

  Conventionally, a container formed by bending a blank board including a paper base material layer is used as a container for containing contents. The container including the paper base material layer is lightweight and has high shape retention while being easily discarded. For this reason, it is suitably used as a container for containing liquid contents. For example, containers containing paper base layers are used to contain beverages such as milk, milk drinks, fruit drinks, alcohols, and industrial liquids such as detergents and motor oils. In addition, solid contents such as confectionery may be stored in the container.

  Containers made by folding a blank board containing a paper base layer are classified into processed paper containers, composite cans, insert-molded containers, double containers, bag-in-boxes, bag-in-cartons, etc. Is done. In particular, processed paper containers are classified into one-piece type, two-piece type, three-piece type, and the like based on the number of members used. The one-piece type includes a regular tetrahedron type, a govel top type, and a flat top type. The two-piece type includes a paper cup, a cone type, and a tray type carton. The three-piece type includes a paper can type and a rectangular parallelepiped type in which a closing member is provided at the upper and lower opening ends of a cylindrical member.

  The blank plate has a plurality of body panels constituting the cylindrical body part of the container, a plurality of bottom panels constituting the bottom part for closing the lower end of the container body part, and an upper end of the container body part being closed. And a plurality of top panels constituting a top portion for performing the operation. Each panel is continuously provided via a plurality of ruled lines including convex portions formed so as to protrude toward the inner surface side of the blank plate. The body portion of the container formed by bending such a blank plate usually has a rectangular cross-sectional shape. That is, in the state of the container, the two adjacent body panels bent along the ruled line form an angle of 90 degrees. For this reason, the corner | angular part which makes 90 degree | times exists in the trunk | drum of a container. Since the corner portion forming 90 degrees is hard and sharp, if the finger touches the corner portion when the consumer holds the container, the consumer feels pain or discomfort.

  In consideration of such a problem, for example, as disclosed in Patent Documents 1 to 4, it has been proposed to provide a recessed portion at a location that is a corner portion of the trunk portion in the conventional container. This is expected to reduce the pain and discomfort that consumers feel when gripping the container. Further, since the appearance of the container is different from that of the conventional container, an effect that it is easy to attract the eyes of consumers, that is, an eye catching effect is also expected.

  In Patent Documents 1 to 4, the above-described dent is realized by forming a pair of ruled lines on the blank plate so as to sandwich a place that was a corner of the trunk in a conventional container. Further, no ruled line is provided at a location that was a corner of the trunk in the conventional container.

Japanese Patent Application Laid-Open No. 2012-197082 JP 2010-527866 Gazette Special table 2000-506821 Special table 2013-502349 gazette

  In general, in the process of producing a container using a blank plate, first, the blank plate is folded in half. Moreover, one side and the other side of the blank plate folded in half are connected through a marginal panel. Thereby, a blank plate in a folded state, that is, a so-called sack-attached carton is produced. Next, the sachet carton is put into a cylindrical body by putting the sack affixed carton into a filling device and boxing the sac affixed carton using the filling device. Thereafter, one end of the cylindrical body is sealed by bending one of the top panel or the bottom panel. Next, the contents are filled into the cylindrical body from the other end of the cylindrical body. Thereafter, the other end of the cylindrical body is sealed by bending the other of the top panel or the bottom panel. In this way, a container filled with the contents can be produced.

  On the other hand, in the containers described in Patent Documents 1 to 4, since the ruled lines are not provided at the corners of the trunk in the conventional containers, the blank board is folded to form a sack-attached carton. I can't. For this reason, in the containers described in Patent Documents 1 to 4, a conventional filling apparatus cannot be used as a filling apparatus for forming a container by forming a blank plate and filling the container with contents. That is, the design change or modification of the filling device is required.

  The present invention has been made in consideration of such points, and an object of the present invention is to provide a blank plate that can easily produce a container that is easy for a consumer to hold.

  The present invention is a blank plate for producing a container, and includes a laminate in which an outer thermoplastic resin layer, a paper base material layer, and an inner thermoplastic resin layer are laminated, and the laminate is a laminate of the laminate. A pair of panels which are partitioned into a plurality of panels connected via a plurality of ruled lines including convex portions formed so as to protrude to the inner surface side, and each of the plurality of ruled lines intersects with another ruled line or an outer edge of the blank plate. And an intermediate portion positioned between the pair of end portions, and the plurality of panels include a plurality of trunk panels constituting a barrel portion of the container and a plurality of portions constituting a top portion of the container. And a plurality of bottom panels constituting the bottom of the container, and the blank plate is arranged so as to sandwich the ruled line between the two trunk panels arranged in series, Formed so as to protrude to the inner or outer surface side of the laminate At least a pair of first sub-ruled lines including a convex part, and the height of the convex parts of the pair of first sub-ruled lines is the convex part of the ruled lines sandwiched between the pair of first sub-ruled lines It is a blank board which is smaller than the height of the.

  In the blank plate according to the present invention, the height of the convex portions of the pair of first sub-ruled lines may be not more than half the height of the convex portions of the ruled lines sandwiched between the pair of first sub-ruled lines. .

  The blank board by this invention WHEREIN: The said blank board is arrange | positioned so that the said pair of 1st sub-ruled line may be pinched | interposed, and at least one pair containing the convex part formed so that it might protrude in the inner surface side or the outer surface side of the said laminated body. The second sub-ruled line may be further formed.

  The blank board by this invention WHEREIN: The height of the convex part of a pair of said 2nd sub-ruled line may be larger than the height of said pair of 1st sub-ruled line.

  The present invention is a container formed by bending a blank plate, the blank plate comprising a laminate in which an outer thermoplastic resin layer, a paper base material layer, and an inner thermoplastic resin layer are laminated, and the laminate The body is partitioned into a plurality of panels arranged continuously through a plurality of ruled lines including convex portions formed so as to protrude toward the inner surface side of the laminate, and the plurality of ruled lines are each another ruled line or the above-mentioned A pair of end portions intersecting with the outer edge of the blank plate, and an intermediate portion located between the pair of end portions, the plurality of panels, a plurality of body panel constituting the body of the container; A plurality of top panels constituting the top of the container; and a plurality of bottom panels constituting the bottom of the container; and the blank plate is provided with the ruled line between the two trunk panels arranged in series. The inner surface of the laminate is arranged to sandwich Alternatively, at least a pair of first sub-ruled lines including a convex portion formed so as to protrude to the outer surface side is further formed, and the height of the convex portions of the pair of first sub-ruled lines is set to the pair of first sub-ruled lines. It is smaller than the height of the convex part of the ruled line sandwiched between the ruled lines, and the ruled line sandwiched between the pair of first sub-ruled lines is positioned outside the pair of first sub-ruled lines, It is a container.

  In the container according to the present invention, the height of the convex portions of the pair of first sub-ruled lines may be half or less than the height of the convex portions of the ruled lines sandwiched between the pair of first sub-ruled lines.

  In the container according to the present invention, the blank plate includes at least a pair of convex portions that are disposed so as to sandwich the pair of first sub-ruled lines and that protrude to the inner surface side or the outer surface side of the laminate. A second sub-ruled line may be further formed.

  In the container according to the present invention, the height of the convex portions of the pair of second sub-ruled lines may be greater than the height of the pair of first sub-ruled lines.

  In the blank plate of the present invention, a plurality of body panels constituting the body portion of the container are continuously provided via ruled lines including convex portions formed so as to protrude to the inner surface side of the laminate constituting the blank plate. Has been. In addition, a pair of first sub-ruled lines for adjusting the shape of the corners of the body part of the container so that the consumer can easily grasp the container are arranged so as to sandwich the ruled line between the body panels. For this reason, when producing a so-called sack-attached carton by folding the blank plate in half, the blank plate can be folded in half along the ruled line between the body panels. As a result, a sack-attached carton having the same shape as that of a conventional container having a rectangular cross-sectional shape can be obtained. Therefore, a sack-attached carton can be manufactured using a conventional filling device. This makes it possible to easily produce a container that is easy for a consumer to hold. Further, the eye catching effect of the container can be enhanced by the pair of first sub-ruled lines.

  In the blank plate of the present invention, the height of the convex portions of the pair of first sub-ruled lines is smaller than the height of the convex portions of the ruled lines sandwiched between the pair of first sub-ruled lines. Accordingly, when a force for bending the blank plate is applied to the blank plate, the blank plate is more easily bent along the ruled line than the first sub-ruled line. For this reason, it can suppress that the width | variety of a sack pasting carton varies. This can increase the productivity of the container.

FIG. 1 is a plan view showing a blank plate according to the present embodiment. FIG. 2 is an enlarged plan view showing a portion surrounded by a two-dot chain line denoted by reference numeral II in the blank plate shown in FIG. FIG. 3 is a cross-sectional view showing a case where the blank plate shown in FIG. 2 is cut along line III-III. FIG. 4 is a cross-sectional view illustrating an example of a layer configuration of a laminate that forms a blank plate. FIG. 5 is a plan view showing a sack-attached carton obtained by bending a blank plate. FIG. 6 is a perspective view showing a container obtained by folding a blank plate to make a box. FIG. 7A is a cross-sectional view showing a case where the container shown in FIG. 6 is cut along line VIIA-VIIA. 7B is a cross-sectional view showing a case where the container shown in FIG. 6 is cut along line VIIB-VIIB. FIG. 7C is a cross-sectional view showing a case where the container shown in FIG. 6 is cut along line VIIC-VIIC. FIG. 7D is a diagram in which the cross-sectional views shown in FIGS. 7A, 7B, and 7C are overlapped. FIG. 8 is a plan view showing a modification of the sub-ruled line of the blank plate. FIG. 9 is a plan view showing a modification of the sub-ruled line of the blank plate. FIG. 10 is a plan view showing a modification of the sub-ruled line of the blank plate.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 7D. First, with reference to FIG. 1, the blank board 20 for producing the container 10 by embodiment of this invention is demonstrated.

(Blank board)
As shown in FIG. 1, a plurality of ruled lines 25 are formed on the blank plate 20. The ruled line 25 is a linear part that has been processed so that the blank plate 20 is easily bent. When such a ruled line 25 is provided on the blank plate 20, when a force to bend the blank plate 20 is applied to the blank plate 20, the portion where the ruled line 25 is formed is compared to the other portions. It becomes easy to bend. For this reason, even if the rigidity of the blank plate 20 itself is high, the blank plate 20 can be accurately folded along the ruled line 25. Therefore, the moldability of the blank plate 20 can be ensured by the ruled lines 25 while ensuring the shape retention of the container 10 by the rigidity of the blank plate 20 itself. As will be described later, the ruled lines 25 include convex portions formed on the surface of the laminate constituting the blank plate 20.

  The blank plate 20 is partitioned into a plurality of panels that are continuously provided via a plurality of ruled lines 25. The plurality of panels include a plurality of body panels constituting the body 14 of the container 10, a plurality of top panels constituting the top 12 of the container 10, and a plurality of bottom panels constituting the bottom 16 of the container 10. Have. In FIG. 1, ruled lines 25 formed on the blank plate 20 are represented by dotted lines. FIG. 1 shows a case where the blank plate 20 is drawn from the outer surface 21 side. As will be described later, the convex portion of the ruled line 25 protrudes toward the inner surface 22 located on the opposite side of the outer surface 21.

  In the present embodiment, the body portion 14 of the container 10 has a substantially rectangular cross-sectional shape. In this case, the plurality of trunk panels include four panels, specifically, a trunk first panel 14a, a trunk second panel 14b, a trunk third panel 14c, and a trunk fourth panel 14d. . Similarly, the plurality of top panels includes a top first panel 12a, a top second panel 12b, a top third panel 12c, and a top fourth panel 12d. The plurality of bottom panels include a bottom first panel 16a, a bottom second panel 16b, a bottom third panel 16c, and a bottom fourth panel 16d. In the present embodiment, the “substantially rectangular shape” is a concept including a case where a corner portion of the body portion 14 is chamfered or rounded as described later.

  A panel 14e that is positioned at the end of the plurality of body panels 14a to 14d, for example, the body fourth panel 14d, is connected to the body margin panel 14e via a ruled line 25. Similarly, a top margin panel 12e is connected to the top fourth panel 12d via a ruled line 25, and a bottom margin panel 16e is connected to the bottom fourth panel 16d via a ruled line 25. .

  Further, as shown in FIG. 1, among the plurality of top panels 12 a to 12 d and the top margin panel 12 e, the portions near the outer edge 20 a of the blank plate 20 are joined to each other when sealing the top 12 of the container 10. Panels 12f, 12g, and 12h may be included.

  When the container 10 is a Gobeltop type container, the top first panel 12a and the top third panel 12c among the top panels 12a to 12d are the top second panel 12b in a state where the blank plate 20 is boxed in the container. And the top fourth panel 12d are panels that are folded inward along the folding ruled line 25c. In this case, as shown in FIG. 1, the top margin panel 12f located in the vicinity of the outer edge 20a of the blank plate 20 of the top first panel 12a and the top third panel 12c has a pair of top margins by folding ruled lines 25c. It is partitioned into a panel 12f. When the blank plate 20 is boxed to form a container, the outer surface 21 of the top marginal panels 12e and 12h and the inner surface 22 of the top first panel 12a and the top marginal panel 12f are joined to each other to form a pair of top margins. By joining the outer surfaces 21 of the panels 12f and the inner surface 22 of the top margin panel 12f and the inner surface of the top margin panel 12g, the top first panel 12a and the top third panel 12c are the top second panel 12b and the top fourth panel 12d. It is possible to maintain the folded state between the two. When the blank plate 20 is boxed to form a container, the inner surface 22 of the top margin panel 12f, the inner surface 22 of the top margin panel 12g, and the inner surfaces 22 of the top margin panel 12g are also sealed to seal the container 10. Be joined. In addition, in order to make it easy to open the top part 12, it joins with the inner surface 22 of the top margin panel 12f of the top third panel 12c, and the inner surface 22 of the top margin panel 12f of the top third panel 12c when boxed. A heat seal inhibitor may be provided on the inner surface 22 of the top marginal panel 12g.

  In FIG. 1, the lengths and widths of the trunk panels 14a to 14d constituting the trunk section 14 of the container 10 are represented by reference numerals T1 and T2, respectively. The blank plate 20 is configured so that the length T1 of the body panels 14a to 14d is larger than the width T2. For example, the length T1 is in the range of 75 to 325 mm, and the width T2 is in the range of 35 to 95 mm.

(Ruled lines)
Hereinafter, the ruled lines 25 formed on the blank plate 20 will be described in detail. FIG. 2 is an enlarged plan view showing a portion surrounded by a two-dot chain line denoted by reference numeral II in the blank plate shown in FIG. In the present embodiment, each of the plurality of ruled lines 25 is divided into a pair of end portions 25a intersecting with the other ruled lines 25 or the outer edge 20a of the blank plate 20, and an intermediate portion 25b positioned between the pair of end portions 25a. Is done. In other words, in the following description, after distinguishing the ruled line 25 into the end portion 25a and the intermediate portion 25b, the characteristics of the blank plate 20 according to the present embodiment will be described. As shown in FIG. 2, for example, the ruled line 25 between the top second panel 12b and the trunk second panel 14b is an end 25a that intersects the ruled line 25 between the top second panel 12b and the top third panel 12c. And an intermediate portion 25b.

  As shown in FIG. 1, the ruled line 25 between the two body panels has an end 25a between the two corresponding top panels and an end 25a between the two corresponding bottom panels. It extends linearly in one direction between 25a. Further, the ruled line 25 between the top second panel 12b and the top third panel 12c, the ruled line 25 between the trunk second panel 14b and the trunk third panel 14c, and the bottom second panel 16b and the bottom third The ruled lines 25 between the panels 16c are all arranged on a straight line. Therefore, as will be described later, for example, the blank plate 20 is folded in two along the ruled line 25 between the body second panel 14b and the body third panel 14c, and the same sack pasting carton as in the case of the conventional container is used. 35 can be formed.

  In the present embodiment, the ruled lines 25 extending in the vertical direction when the box 10 is made into a container 10 also extend in parallel with each other even in the state of the blank plate 20. For example, the ruled line 25 connecting two adjacent top panels, the ruled line 25 connecting two adjacent trunk panels, and the ruled line 25 connecting two adjacent bottom panels all extend in parallel with each other. Further, the ruled lines 25 extending in the horizontal direction when the box 10 is made into a container 10 also extend in parallel with each other even in the state of the blank plate 20. For example, the ruled line 25 connecting the adjacent top panel and the body panel and the ruled line 25 connecting the adjacent bottom panel and the body panel both extend in parallel with each other.

(First sub-ruled line)
As shown in FIG. 1 and FIG. 2, the body panel of the blank plate 20 has at least a pair of first sub-ruled lines 26 arranged so as to sandwich the ruled line 25 between two continuously disposed body panels. Is formed. In the example shown in FIG. 1, the ruled line 25 between the trunk first panel 14a and the trunk second panel 14b, the ruled line 25 between the trunk second panel 14b and the trunk third panel 14c, and the trunk Three pairs of first sub-ruled lines 26 are formed so as to sandwich the ruled lines 25 between the part third panel 14c and the body part fourth panel 14d, respectively. Further, as shown in FIG. 1, the first sub-ruled line 26 may be formed on the trunk fourth panel 14d along the ruled line 25 between the trunk fourth panel 14d and the marginal panel 14e. Good.

  As will be described later, the first sub-ruled line 26 also includes a convex portion formed so as to protrude toward the inner surface 22 side of the laminate constituting the blank plate 20, similarly to the ruled line 25. For this reason, when applying a force to bend the blank plate 20 to the blank plate 20, the blank plate 20 is easily bent not only along the ruled line 25 but also along the first sub-ruled line 26. As a result, as will be described later, in the state where the blank plate 20 is boxed and the container 10 is formed, the angle formed by the two trunk panels connected via the ruled line 25 at the ruled line 25 is more than 90 degrees. Can be bigger. This can reduce pain and discomfort that the consumer feels when gripping the container 10.

  In addition, the part close | similar to the outer edge 20a of the blank board 20 among the trunk | drum 1st panels 14a is a part joined with the marginal panel 14e of a trunk | drum. In this case, if the first sub-ruled line 26 is formed in a portion of the body first panel 14a that is close to the outer edge 20a of the blank plate 20, the body first panel 14a is joined to the body margin panel 14e. It is conceivable that the portion to be bent bends along the first sub-ruled line 26, and as a result, the body first panel 14a and the body margin panel 14e become partially non-parallel. In this case, there is a concern that the adhesion between the body first panel 14a and the body margin panel 14e may be reduced. Considering such a problem, it is preferable not to form the first sub-ruled line 26 in the portion of the body first panel 14a adjacent to the outer edge 20a of the blank plate 20 as shown in FIG. For the same reason, it is preferable not to form the first sub-ruled line 26 in the portion adjacent to the ruled line 25 in the margin panel 14e. The same applies to a second sub-ruled line 29 described later.

  Hereinafter, the first sub-ruled line 26 will be described in detail. In the present embodiment, the first sub-ruled line 26 is formed with an intermediate portion 25b of the ruled line 25 connecting the trunk panel and the top panel where the first sub-ruled line 26 is formed, and the first sub-ruled line 26. It is comprised so that it may not cross | intersect the intermediate part 25b of the ruled line 25 which connects the trunk | drum panel and bottom part panel which are connected. For example, as shown in FIG. 2, of the pair of first sub-ruled lines 26 formed so as to sandwich the ruled line 25 between the trunk second panel 14b and the trunk third panel 14c, the trunk second panel 14b. The first sub-ruled line 26 on the side is an intermediate portion 25b of the ruled line 25 between the trunk second panel 14b and the top second panel 12b, and a ruled line between the trunk second panel 14b and the bottom second panel 16b. It is comprised so that it may not cross | intersect the intermediate part 25b of 25. The first sub ruled line 26 may intersect with the end 25a of the ruled line 25. For example, in the example shown in FIG. 2, the first sub-ruled line 26 on the body second panel 14b crosses the end 25a of the ruled line 25 between the body second panel 14b and the body third panel 14c. .

  As shown in FIG. 2, the first sub-ruled line 26 includes a first part 27 extending along a ruled line 25 between two continuous body panels, an end part 27 a of the first part 27, and a top panel or And a second portion 28 located at least partially between the bottom panel. For example, as shown in FIG. 2, of the pair of first sub-ruled lines 26 formed so as to sandwich the ruled line 25 between the trunk second panel 14b and the trunk third panel 14c, the trunk second panel 14b. The first sub-ruled line 26 on the side includes a first portion 27 extending along a ruled line 25 between the body second panel 14b and the body third panel 14c, an end portion 27a of the first portion 27, and a second top portion. A second portion 28 located between the panel 12b and a second portion 28 located between the end 27a of the first portion 27 and the bottom second panel 16b is included. In the example shown in FIG. 2, the second portion 28 is formed so that one end thereof intersects with the end portion 27a of the first portion 27 and the other end intersects with the end portion 25a of the ruled line 25 between the two body panels. Has been. By forming the second portion 28, as will be described later, the influence of bending the blank plate 20 along the first portion 27 of the first sub-ruled line 26 is caused by the body portion where the first sub-ruled line 26 is formed. It is possible to suppress the ruled line 25 between the panel and the top panel and the ruled line 25 between the trunk panel and the bottom panel where the first sub-ruled line 26 is formed. Thereby, the formability of the top portion and the bottom portion can be more reliably maintained. Further, the effect of bending the blank plate 20 along the ruled line 25 between the trunk panel and the top panel or the ruled line 25 between the trunk panel and the bottom panel is affected by the first portion 27 of the first sub-ruled line 26. Can be suppressed. That is, the second portion 28 of the first sub-ruled line 26 includes the ruled line 25 between the trunk panel and the top panel or the ruled line 25 between the trunk panel and the bottom panel, and the first portion 27 of the first sub-ruled line 26. This is a portion formed to suppress the mutual influence of each other.

  As described above, the second portion 28 folds the blank plate 20 along the first portion 27 of the first sub-ruled line 26, or the ruled line 25 between the trunk panel and the top panel or the trunk panel and the bottom panel. The influence on the ruled line 25 between the two can be suppressed. For this reason, when the 2nd part 28 is provided, the edge part 27a of the 1st part 27 is made into the ruled line 25 between a trunk | drum panel and a top panel, or the ruled line 25 between a trunk | drum panel and a bottom panel. Can be placed close together. That is, the length of the first portion 27 can be further increased. As a result, the blank plate 20 can be more reliably bent along the first sub-ruled line 26. In addition, the ruled line 25 between the trunk panel and the top panel or the ruled line 25 between the trunk panel and the bottom panel, and the end of the first portion 27 in the direction in which the ruled line 25 between the two trunk panels extends. In consideration of the productivity of the container 10, the distance D between the portion 27a is preferably 10 mm or more. On the other hand, the effect of bending the blank plate 20 along the first portion 27 of the first sub-ruled line 26 on the ruled line 25 between the trunk panel and the top panel or the ruled line 25 between the trunk panel and the bottom panel. In order to suppress this, it is preferable that D / T1, which is the ratio of the distance D to the length T1 of the body portion, is 0.2 or less. When the length T1 of the trunk portion is 75 mm, D / T1 = 0.2 means that the distance D is 15 mm.

  Note that “the first portion 27 extends along the ruled line 25” means that the distance S1 between the first portion 27 of the first sub-ruled line 26 and the ruled line 25 in the direction perpendicular to the ruled line 25 is within a certain range. It means that there is. For example, the interval S1 is in the range of 1.5 to 5 mm. FIG. 2 shows an example in which the first portion 27 extends linearly in parallel with the ruled line 25.

(Second sub-ruled line)
As shown in FIGS. 1 and 2, the body panels 14 a to 14 d of the blank plate 20 may further have a second sub-ruled line 29 arranged so as to sandwich the pair of first sub-ruled lines 26. . As will be described later, the second sub-ruled line 29 also includes a convex portion formed so as to protrude toward the inner surface 22 side of the laminate constituting the blank plate 20, similarly to the ruled line 25 and the first sub-ruled line 26. For this reason, when a force to bend the blank plate 20 is applied to the blank plate 20, the blank plate 20 is easily bent not only along the ruled lines 25 and the first sub-ruled lines 26 but also along the second sub-ruled lines 29. .

  Similar to the first sub-ruled line 26, the second sub-ruled line 29 also includes a first part 30 extending along the ruled line 25 between the two trunk panels provided in series, and an end part 30a and a top part of the first part 30. A second portion 31 located at least partially between the panel or the bottom panel. The arrangement and shape of the first portion 30 and the second portion 31 of the second sub-ruled line 29 in the plan view, except that they are formed at a position farther from the ruled line 25 between the two trunk panels provided in series. Since this is the same as the arrangement and shape of the first portion 27 and the second portion 28 of the first sub-ruled line 26, detailed description thereof will be omitted.

  In FIG. 2, reference numeral S <b> 2 represents a distance S <b> 2 between the first portion 27 of the first sub-ruled line 26 and the first portion 30 of the second sub-ruled line 29. The interval S2 is in the range of 1.5 to 5 mm, for example.

  In addition to the first sub-ruled line 26, the second sub-ruled line 29 is further formed, so that two body panels connected via the ruled line 25 in a state where the blank plate 20 is boxed and the container 10 is formed. Can further increase the angle formed by the ruled line 25. This can further reduce pain and discomfort that the consumer feels when holding the container 10. Although not shown, other sub-ruled lines such as a third sub-ruled line arranged so as to sandwich the first sub-ruled line 26 and the second sub-ruled line 29 may be further formed on the blank plate 20.

(Cross-sectional shape of ruled line, first sub-ruled line and second sub-ruled line)
Next, an example of the cross-sectional shapes of the ruled line 25, the first sub-ruled line 26, and the second sub-ruled line 29 will be described with reference to FIG. FIG. 3 is a cross-sectional view showing a case where the blank plate 20 shown in FIG. 2 is cut along line III-III.

  As shown in FIG. 3, the ruled lines 25, the first sub-ruled lines 26, and the second sub-ruled lines 29 each include a convex portion that protrudes toward the inner surface 22 side of the blank plate 20. Such a convex part is located in the outer surface 21 side of the laminated body 40 which comprises the blank board 20, for example, is located in the inner surface 22 side of the male type | mold which has a some convex part, and the laminated body 40, and is male. It can be formed by pressing the laminate 40 using a female die having a recess formed at a location corresponding to the convex portion of the mold.

  In FIG. 3, the height of the convex portion of the ruled line 25, the height of the convex portion of the first sub-ruled line 26, and the height of the convex portion of the second sub-ruled line 29 are represented by symbols H1, H2, and H3, respectively. . In addition, the width of the convex portion of the ruled line 25, the width of the convex portion of the first sub-ruled line 26, and the width of the convex portion of the second sub-ruled line 29 are represented by symbols W1, W2, and W3, respectively. In the present embodiment, the height H2 of the convex portion of the first sub-ruled line 26 and the height H3 of the convex portion of the second sub-ruled line 29 are smaller than the height H1 of the convex portion of the ruled line 25. Thus, when a force for bending the blank plate 20 is applied to the blank plate 20, the blank plate 20 is more likely to bend more accurately along the ruled line 25 than the first sub-ruled line 26 and the second sub-ruled line 29. For this reason, it can suppress that the width W of the sack pasting carton 35 mentioned later varies.

  The height H2 of the convex portion of the first sub-ruled line 26 may be smaller than the height H3 of the convex portion of the second sub-ruled line 29, as shown in FIG. Alternatively, although not shown, the height H2 of the convex portion of the first sub-ruled line 26 may be greater than the height H3 of the convex portion of the second sub-ruled line 29, or the convexity of the second sub-ruled line 29. The height H3 of the part may be the same. Further, the height H3 of the convex portion of the second sub-ruled line 29 may be the same as the height H1 of the ruled line 25.

  Specific numerical values for the height H1 of the convex portion of the ruled line 25, the height H2 of the convex portion of the first sub-ruled line 26, and the height H3 of the convex portion of the second sub-ruled line 29 are the widths W1 and W2 of the convex portions. It is appropriately determined according to W3, the thickness of the blank plate 20, and the like. For example, the thickness of the blank plate 20 is in the range of 0.40 to 0.75 mm, the width W1 of the convex portion of the ruled line 25, the width W2 of the convex portion of the first sub-ruled line 26, and the convex portion of the second sub-ruled line 29 When the width W3 is 1.3 to 2.8 mm, 1.3 to 2.8 mm, and 1.3 to 2.8 mm, the height H1 of the convex portion of the ruled line 25 and the convex of the first sub-ruled line 26 The height H2 of the portion and the height H3 of the convex portion of the second sub-ruled line 29 can be set to 0.07 to 0.30 mm, 0.02 to 0.30 mm, and 0.02 to 0.30 mm, respectively. Moreover, it is preferable that the height H2 of the convex portion of the first sub-ruled line 26 is not more than half of the height H1 of the convex portion of the ruled line 25.

  The cross-sectional shape of the convex portion of the ruled line 25, the cross-sectional shape of the convex portion of the first sub-ruled line 26, and the cross-sectional shape of the convex portion of the second sub-ruled line 29 may be the same or different. FIG. 3 shows an example in which the convex portions of the ruled lines 25 and the convex portions of the second sub-ruled lines 29 have a trapezoidal cross-sectional shape. That is, the ruled lines 25 and the second sub-ruled lines 29 are configured as so-called square rules. FIG. 3 shows an example in which the convex portion of the first sub-ruled line 26 has a semicircular cross-sectional shape. That is, the first sub-ruled line 26 is configured as a so-called round ruled line. In general, the blank plate 20 is more likely to bend along the convex portion when the convex cross-sectional shape is trapezoidal than when the convex sectional shape is a semicircular shape. Moreover, when the cross-sectional shape of a convex part is semicircle shape, in the container 10 produced by boxing the blank board 20, the outline of the outer surface 21 in the said convex part shall be more rounded Can do. Although not shown, the cross-sectional shape of the convex portion of the ruled line 25, the cross-sectional shape of the convex portion of the first sub-ruled line 26, and the cross-sectional shape of the convex portion of the second sub-ruled line 29 may be trapezoidal. Both may be semicircular. The cross-sectional shape of the convex portion of the ruled line 25 may be a trapezoidal shape, and the cross-sectional shape of the convex portion of the first sub-ruled line 26 and the cross-sectional shape of the convex portion of the second sub-ruled line 29 may be semicircular.

(Layer structure of the laminate)
Next, with reference to FIG. 4, an example of the layer structure of the laminated body 40 which comprises the blank board 20 is demonstrated. As shown in FIG. 4, the laminated body 40 is comprised by laminating | stacking the outer side thermoplastic resin layer 43, the paper base material layer 45, the intermediate | middle layer 46, and the inner side thermoplastic resin layer 44 in order. The outer thermoplastic resin layer 43 is a layer constituting the outer surface 21 of the blank plate 20. The inner thermoplastic resin layer 44 is a layer constituting the inner surface 22 of the blank plate 20.

(Inner thermoplastic resin layer)
The inner thermoplastic resin layer 44 is a layer provided to join the inner surfaces 22 of the panels for sealing the container 10, such as the top panels 12a to 12d and the bottom panels 16a to 16d. In addition, inner surfaces 22 of the panels 12a, 14a, and 16a including end portions of the end portions of the blank plate 20 on the side opposite to the margin panels 12e, 14e, and 16e are provided on the outer surface 21 of the margin panels 12e, 14e, and 16e. The inner thermoplastic resin layer 44 can also act when joining.

  The inner thermoplastic resin layer 44 can also play a role of preventing contents such as liquid from leaking from the container 10. For example, when the blank plate 20 is boxed to form a container, the top of the top first panel 12a folded inward (the portion of the folding ruled line 25c between the adjacent top marginal panels 12f) and the inside are folded inward. Further, the apex of the top third panel 12c (the portion of the folding ruled line 25c between adjacent top margin panels 12f) comes to face. At this time, by melting the inner thermoplastic resin layer 44 constituting the inner surface 22 of the apex of each panel 12a, 12c folded inward, a gap between the apexes of each panel 12a, 12c folded inward is created. The resin portion including the melted inner thermoplastic resin layer 44 can be filled. Thereby, it is possible to more firmly prevent the contents such as the liquid from leaking from the container 10. In addition, leakage of contents such as liquid is caused by joining the inner surface 22 of the top margin panel 12f, the inner surface 22 of the top margin panel 12g, and the inner surfaces 22 of the top margin panel 12g above the apexes of the panels 12a and 12c. Can also be prevented.

  As a material constituting the inner thermoplastic resin layer 44, low density polyethylene (LLDPE), linear low density polyethylene (LLDPE), or the like can be used. The inner thermoplastic resin layer 44 has a thickness in the range of 20 to 120 μm, for example.

[Outer side thermoplastic resin layer]
The outer thermoplastic resin layer 43 is a layer provided to join the outer surface 21 of the marginal panels 12e, 14e, 16e to the inner surface 22 of the panels 12a, 14a, 16a.

  As a material constituting the outer thermoplastic resin layer 43, the same or similar material as that constituting the inner thermoplastic resin layer 44 can be used. The thickness of the outer thermoplastic resin layer 43 is, for example, in the range of 10 to 50 μm.

(Paper base layer)
The paper base layer 45 is a layer configured to impart sufficient rigidity to the blank board 20. For example the basis weight of the paper substrate layer 45, 100 g / ^{m 2} or more, preferably it is within the range of 200-500 g / ^{m 2.} As the paper base layer 45, various paper materials such as pure white roll paper, kraft paper, paperboard, processed paper, milk cardboard, and the like can be used. The paper base layer 45 may be a stack of a plurality of these paper materials.

[Middle layer]
As shown in FIG. 4, the blank board 20 may further include an intermediate layer 46 provided between the paper base material layer 45 and the inner thermoplastic resin layer 44. As the intermediate layer, an appropriate one can be selected according to required performance such as water vapor and other gas barrier properties, light shielding properties, various mechanical strengths, and the like. For example, a metal layer such as an aluminum foil, a metal oxide such as aluminum, a metal oxide such as aluminum oxide, or an inorganic oxide such as silicon oxide can be provided as the intermediate layer. In addition, a resin layer having a high gas barrier property such as an ethylene-vinyl alcohol copolymer (EVOH), a polyvinylidene chloride resin (PVDC), or an aromatic polyamide such as nylon MXD6 may be provided as an intermediate layer. . By providing such an intermediate layer, it is possible to prevent oxygen and water vapor from entering the container 10. Further, as the intermediate layer, a stretched plastic film such as a stretched nylon film or a stretched polyethylene terephthalate film may be provided.

(Container manufacturing method)
Next, a method for producing the container 10 by making the blank plate 20 will be described.

[Sack-attached carton forming process]
First, the blank board 20 shown in FIG. 1 is prepared. Next, the blank plate 20 is folded in two along the ruled line 25 between the trunk second panel 14b and the trunk third panel 14c. Further, the top margin panel 12e, the trunk margin panel 14e, and the bottom margin panel 16e are folded back along the ruled line 25 between the trunk fourth panel 14d and the trunk margin panel 14e. Then, by heat-sealing, the outer surface 21 of the top margin panel 12h, the top margin panel 12e, the trunk margin panel 14e and the bottom margin panel 16e, the top first panel 12a, the trunk first panel 14a and the bottom first panel. The inner surface 22 of the panel 16a is joined. Thereby, as shown in FIG. 5, the blank board of the folded state, what is called a sack pasting carton 35 is obtained.

  Here, in the present embodiment, as described above, the ruled line 25 between the top second panel 12b and the top third panel 12c, and the ruled line 25 between the trunk second panel 14b and the trunk third panel 14c. , And the ruled lines 25 between the bottom second panel 16b and the bottom third panel 16c are all arranged on a straight line. A plurality of ruled lines 25 extending from the top 12 side to the bottom 16 side are all arranged in parallel. For this reason, it can suppress that the width W of the sack pasting carton 35 varies. Therefore, the container 10 can be produced by boxing the sack-attached carton 35 using a conventional filling device, and the contents can be filled into the container 10.

  In the present embodiment, the height H2 of the convex portion of the first sub-ruled line 26 and the height H3 of the convex portion of the second sub-ruled line 29 are smaller than the height H1 of the convex portion of the ruled line 25. . For this reason, when the blank board 20 is bent to form the sack-attached carton 35, the blank board 20 is more easily bent along the ruled line 25 than the first sub-ruled line 26 and the second sub-ruled line 29. Accordingly, the ruled line 25 between the top second panel 12b and the top third panel 12c, the ruled line 25 between the trunk second panel 14b and the trunk third panel 14c, and the bottom second panel 16b and the bottom third The blank board 20 can be more accurately bent along the ruled line 25 between the panel 16c. This can prevent the width W of the sack pasting carton 35 from varying. In general, in order to manufacture the container 10 by automatically boxing the sack-applied carton 35 using a machine such as a filling device, the width W of the sac-applied carton 35 is required to be within a certain range. For this reason, suppressing the variation in the width W of the sachet carton 35 is effective in increasing the productivity of the container 10.

[Box-making process and filling process]
Next, the sack pasting carton 35 is put into a filling device (not shown), and the sack pasting carton 35 is boxed by using the filling unit, whereby the sack pasting carton 35 is formed into a cylindrical body. Thereafter, one end of the tubular body is sealed by bending one of the top panels 12a to 12d or the bottom panels 16a to 16d and then heat-sealing. Next, the contents are filled into the cylindrical body from the other end of the cylindrical body. Thereafter, the other end of the cylindrical body is sealed by heat-sealing after bending the other of the top panels 12a to 12d or the bottom panels 16a to 16d. In this way, the container 10 filled with the contents can be produced. FIG. 6 is a perspective view showing the produced container 10.

  Here, in the present embodiment, as described above, the first sub-ruled line 26, particularly the first portion 27 of the first sub-ruled line 26, and the body panels 14a to 14d on which the first sub-ruled line 26 is formed An intermediate part 25b of the ruled line 25 connecting the top panels 12a to 12d and an intermediate part of the ruled line 25 connecting the trunk panels 14a to 14d and the bottom panels 16a to 16d where the first sub-ruled lines 26 are formed. It is configured not to cross 25b. For example, as described above, the end of the ruled line 25 sandwiched by the first sub-ruled line 26 between the end 27a of the first portion 27 of the first sub-ruled line 26 and the top panels 12a to 12d and the bottom panels 16a to 16d. A second portion 28 that intersects the portion 25a is disposed. For this reason, the folding line formed in the blank board 20 by bending the blank board 20 along the 1st part 27 of the 1st sub-ruled line 26 connects the trunk | drum panel 14a-14d and the top panels 12a-12d continuously. It is possible to prevent the ruled line 25 connecting the body panels 14a to 14d and the bottom panels 16a to 16d in which the ruled line 25 and the first sub-ruled line 26 are formed from reaching the ruled line 25. That is, when the container 10 is formed by boxing the sack-applied carton 35 of the blank plate 20, the first sub-ruled line 26 is formed due to the effect of bending the blank plate 20 along the first sub-ruled line 26. Ruled lines 25 connecting the trunk panels 14a to 14d and the top panels 12a to 12d, and ruled lines 25 connecting the trunk panels 14a to 14d on which the first sub-ruled lines 26 are formed and the bottom panels 16a to 16d. Can be suppressed. Accordingly, the top panels 12a to 12d and the bottom panels 16a to 16d can be more accurately bent along the ruled lines 25 between the trunk panels 14a to 14d with respect to the trunk panels 14a to 14d. Thus, the cross-sectional shape of the container 10 at the boundary between the top panels 12a-12d and the trunk panels 14a-14d, and the container at the boundary between the bottom panels 16a-16d and the trunk panels 14a-14d. The cross-sectional shape of 10 can be made into a desired shape according to the ruled line 25, for example, a rectangular shape. That is, even when the first sub-ruled line 26 and the second sub-ruled line 29 are formed on the body panel 14a to 14d, the formability of the top 12 and the bottom 16 of the container 10 can be sufficiently maintained.

  Generally, the container 10 is designed so that the hermeticity of the container 10 is the highest when the container 10 is boxed in a desired shape according to the ruled line 25. For example, the container 10 is boxed in a desired shape according to the ruled line 25. As a result, the cross-sectional shape of the container 10 at the boundary between the top panels 12a to 12d and the trunk panels 14a to 14d is rectangular. In this case, the gap between the apex of the top first panel 12a folded inward and the apex of the top third panel 12c folded inward is the smallest. Alternatively, the vertices of the panels 12a and 12c are in contact with each other. For this reason, the gap between the vertices of the panels 12a and 12c can be easily filled with the resin portion including the melted inner thermoplastic resin layer 44. Thereby, it can prevent more firmly that contents, such as a drink, leak from the container 10. FIG. That is, the container can be sufficiently sealed.

  FIG. 7A is a cross-sectional view showing a case where the container 10 shown in FIG. 6 is cut along a line VIIA-VIIA passing through a boundary portion between the top panels 12a to 12d and the trunk panels 14a to 14d. 7B is a cross-sectional view showing a case where the container 10 shown in FIG. 6 is cut along a line VIIB-VIIB passing through the second portion 28 of the first sub-ruled line 26 formed in the body panels 14a to 14d. is there. 7C is a cross-sectional view showing a case where the container 10 shown in FIG. 6 is cut along a line VIIC-VIIC passing through the first portion 27 of the first sub-ruled line 26 formed in the body panels 14a to 14d. is there. FIG. 7D is a diagram in which the cross-sectional views shown in FIGS. 7A, 7B, and 7C are overlapped and the corner portion 14x of the body portion 14 is enlarged. 7A to 7D, the cross section of the body portion 14 is drawn ignoring the thickness of each body panel 14a to 14d. 7D, the cross-sectional view of the container 10 along the line VIIA-VIIA is drawn with a solid line, the cross-sectional view of the container 10 along the line VIIB-VIIB is drawn with a dotted line, A cross-sectional view along the line is drawn with a one-dot chain line.

  As shown to FIG. 7A, the container 10 has a rectangular-shaped cross-sectional shape in the boundary part between top panel 12a-12d and trunk | drum panel 14a-14d. According to the present embodiment, the ruled line 25 between the trunk panel 14a-14d and the top panel 12a-12d or the ruled line 25 and the first sub-ruled line between the trunk panel 14a-14d and the bottom panel 16a-16d. By inhibiting the first part 27 of 26 from affecting each other by the second part 28, a rectangular cross-sectional shape can be formed more accurately.

  As shown in FIGS. 7B to 7D, in the portion where the first sub-ruled line 26 and the second sub-ruled line 29 are formed, the body panels 14 a to 14 d are formed along the first sub-ruled line 26 and the first portion 27. It is bent slightly. In FIG. 7D, symbols β1 and β2 represent angles at which the body panels 14a to 14d are bent along the first sub-ruled line 26 and the second sub-ruled line 29, respectively. As a result, the angle α formed at the ruled line 25 by the two trunk panels connected via the ruled line 25 can be made larger than 90 degrees. Accordingly, the corner portion 14x of the body portion 14 is chamfered or rounded. For this reason, the pain and discomfort which a consumer feels when holding the container 10 can be reduced. Moreover, since the external appearance of the container 10 is different from that of the conventional container, an effect that it is easy to attract the eyes of consumers, that is, an eye catching effect is also expected. The angle α is a value obtained by adding 90 degrees to the sum of the angle β1 and the angle β2.

  In the present embodiment, as shown in FIGS. 7B to 7D, the ruled line 25 sandwiched between the pair of first sub-ruled lines 26 is located outside the pair of first sub-ruled lines 26. That is, the corner portion 14x of the body portion 14 is convex outward. Here, “located outside” means that, for example, as shown in FIG. 7C, the inner surface 22, not the outer surface 21 of the container 10, is positioned at a position of the ruled line 25 sandwiched between the pair of first sub-ruled lines 26. This means that it faces a straight line L passing through the first sub-ruled line 26.

  7B to 7D, the corner 14x between the body first panel 14a and the body fourth panel 14d is chamfered or rounded in the same manner as the other corners 14x. However, the present invention is not limited to this example. As described above, in the case where the first sub-ruled line 26 is not provided in the portion adjacent to the outer edge 20a of the blank plate 20 in the trunk first panel 14a, or in the portion adjacent to the ruled line 25 in the margin panel 14e. May not be provided with the first sub-ruled line 26. In this case, although not shown, the shape of the corner 14x between the body first panel 14a and the body fourth panel 14d may be different from the shapes of the other corners 14x.

  Note that various modifications can be made to the above-described embodiment. Hereinafter, modified examples will be described with reference to the drawings as necessary. In the following description and the drawings used in the following description, the same reference numerals as those used for the corresponding parts in the above embodiment are used for the parts that can be configured in the same manner as in the above embodiment. A duplicate description is omitted. In addition, when it is clear that the operational effects obtained in the above-described embodiment can be obtained in the modified example, the description thereof may be omitted.

  In the above-described embodiment, the example in which the first sub ruled line 26 is formed so that one end of the second portion 28 of the first sub ruled line 26 intersects the end portion 27a of the first part 27 has been described. However, the second portion 28 is at least partially located between the top panels 12a-12d and the end 27a of the first portion 27 or between the bottom panels 16a-16d and the end 27a of the first portion 27. As long as it does, as shown in FIG. 8, the 2nd part 28 and the 1st part 27 do not need to be connected. Further, the second portion 28 and the end portion 25a of the ruled line 25 may not be connected.

  In the above-described embodiment, the first sub-ruled line 26 is formed so that the other end of the second portion 28 of the first sub-ruled line 26 intersects the end 25a of the ruled line 25 between the two body panels. An example was given. However, the second portion 28 includes an intermediate portion 25b of the ruled line 25 connecting the trunk panel and the top panel in which the first sub-ruled line 26 is formed, and a trunk panel in which the first sub-ruled line 26 is formed. The arrangement of the other end of the second portion 28 is not particularly limited as long as it does not intersect with the intermediate portion 25b of the ruled line 25 that connects the bottom panel and the bottom panel. For example, as shown in FIG. 8, the other end of the second portion 28 may not intersect the ruled line 25 between the trunk second panel 14b and the trunk third panel 14c. As shown in FIG. 9, the other end of the second portion 28 may intersect an intermediate portion 25b of the ruled line 25 between the trunk second panel 14b and the trunk third panel 14c.

  If the other end of the second portion 28 of the first sub-ruled line 26 is not connected to the ruled line 25 as shown in FIG. 8, the second portion 28 is preferably connected to the ruled line 25 sandwiched between the pair of first sub-ruled lines 26. It is comprised so that it may extend toward. Further, when one end of the second portion 28 of the first sub-ruled line 26 is not connected to the first portion 27, the second portion 28 is preferably connected to the end portion 27 a of the first portion 27 on the side close to the second portion 28. It is comprised so that it may extend toward. As a result, the influence of bending the blank plate 20 along the second portion 28 is caused by the ruled line 25 between the body panel and the top panel where the first sub-ruled line 26 is formed, and the first sub-ruled line 26. It can suppress reaching the ruled line 25 between the trunk | drum panel and bottom panel currently formed. The term “extends toward the ruled line” means that the extension line obtained by virtually extending the second part 28 toward the other end of the second part 28 is a body panel and a top panel in which the first sub-ruled line 26 is formed. And the ruled line 25 sandwiched between the pair of first sub-ruled lines 26 before crossing the ruled line 25 between the body panel and the bottom panel where the first sub-ruled line 26 is formed. Means to meet. When the second portion 28 includes a curved portion, the direction in which the extension line obtained by virtually extending the second portion 28 to the other end side of the second portion 28 extends in the second direction at the other end of the second portion 28. The tangent line in contact with the portion 28 extends.

  Further, in the above-described embodiment, the first sub-ruled line 26 includes the middle part 25b of the ruled line 25 connecting the trunk panel and the top panel where the first sub-ruled line 26 is formed, and the first sub-ruled line. An example is shown in which the middle part 25b of the ruled line 25 connecting the trunk panel and the bottom panel in which the body 26 is formed is not intersected. However, the present invention is not limited to this, and as shown in FIG. 10, the first sub-ruled line 26 is an intermediate part of the ruled line 25 connecting the body panel and the top panel where the first sub-ruled line 26 is formed. 25b or an intermediate portion 25b of the ruled line 25 that continuously connects the body panel and the bottom panel on which the first sub-ruled line 26 is formed. Even in this case, by making the height H2 of the convex portion of the first sub-ruled line 26 smaller than the height H1 of the convex portion of the ruled line 25 sandwiched between the pair of first sub-ruled lines 26, the blank plate When a force for bending 20 is applied to the blank plate 20, the blank plate 20 can be more easily bent along the ruled line 25 than the first sub-ruled line 26. For this reason, it can suppress that the width W of the sack pasting carton 35 varies. Thereby, the productivity of the container 10 can be increased.

  In the present embodiment, the ruled line 25 between the trunk first panel 14a and the trunk second panel 14b, the ruled line 25 between the trunk second panel 14b and the trunk third panel 14c, In addition, an example is shown in which three pairs of first sub-ruled lines 26 are formed so as to sandwich the ruled lines 25 between the body third panel 14c and the body fourth panel 14d. However, the number and arrangement of pairs of first sub-ruled lines 26 formed on the blank plate 20 are not particularly limited. For example, although not shown, the ruled line 25 between the trunk first panel 14a and the trunk second panel 14b and the ruled line 25 between the trunk third panel 14c and the trunk fourth panel 14d are sandwiched, respectively. In this manner, two pairs of first sub-ruled lines 26 are formed, and on the other hand, the first sub-ruled lines 26 are not formed in the vicinity of the ruled line 25 between the body second panel 14b and the body third panel 14c. May be. Also, a pair of first sub-ruled lines 26 are formed so as to sandwich the ruled line 25 between the trunk second panel 14b and the trunk third panel 14c, while the trunk first panel 14a and the trunk second The first sub-ruled line 26 may not be formed in the vicinity of the ruled line 25 between the panel 14b and the ruled line 25 between the trunk third panel 14c and the trunk fourth panel 14d.

  Further, in the above-described embodiment and each modification, the first portion 27 and the second portion 28 of the first sub-ruled line 26 both extend linearly. However, the present invention is not limited to this, and although not shown, the first portion 27 and the second portion 28 may include curved portions.

  Further, in the above-described embodiment, an example in which the ruled line 25, the first sub-ruled line 26, and the second sub-ruled line 29 all include a convex portion that protrudes toward the inner surface 22 side of the blank plate 20 has been shown. However, the corner portion 14x of the trunk portion 14 in the portion where the first sub-ruled line 26 is formed has a border portion between the top portion 12 and the trunk portion 14 or a border portion between the bottom portion 16 and the trunk portion 14. The corner portion 14x of the body portion 14 is recessed outwardly from the corner portion 14x of the portion 14 (see FIG. 7D), and in the portion where the first sub-ruled line 26 is formed (see FIG. 7B and FIG. 7). 7C), the direction and shape of the convex portions constituting the ruled line 25, the first sub-ruled line 26, and the second sub-ruled line 29 are not particularly limited. For example, the convex portion of the ruled line 25 may protrude toward the inner surface 22 of the blank plate 20, and the convex portion of the first sub-ruled line 26 and the second sub-ruled line 29 may protrude toward the outer surface 21 of the blank plate 20.

  Further, in the present embodiment described above, an example is shown in which the blank plate 20 is first folded to produce the sack-attached carton 35, and then the sack-attached carton 35 is boxed to produce the container 10. However, the present invention is not limited to this, and the container 10 may be manufactured by making the blank plate 20 without going through the sack pasting carton 35. Even in this case, by making the height H2 of the convex portion of the first sub-ruled line 26 smaller than the height H1 of the convex portion of the ruled line 25 sandwiched between the pair of first sub-ruled lines 26, the blank plate 20 moldability can be improved.

  Moreover, in the above-mentioned embodiment, an example in which the gobber top type container 10 is formed based on the blank plate 20 shown in FIG. However, the present invention is not limited to this, and although not shown, other types of containers 10 such as a flat top type container 10 may be formed based on the blank plate 20 shown in FIG.

  In addition, although some modified examples with respect to the above-described embodiment have been described, naturally, a plurality of modified examples can be applied in combination as appropriate.

DESCRIPTION OF SYMBOLS 10 Container 12 Top part 12a-12e Top panel 14 Body part 14a-14e Body part panel 16 Bottom part 16a-16e Bottom panel 20 Blank board 20a Outer edge 21 Outer surface 22 Inner surface 25 Ruled line 25a End part 25b Middle part 26 1st sub-ruled line 27 1st Part 27a End part 28 Second part 29 Second sub-ruled line 30 First part 30a End part 31 Second part 35 Sack pasting carton 40 Laminate 43 Outer thermoplastic resin layer 44 Inner thermoplastic resin layer 45 Paper substrate layer 46 Intermediate layer

Claims (8)

A blank plate for producing a container,
Provided with a laminate in which an outer thermoplastic resin layer, a paper base material layer and an inner thermoplastic resin layer are laminated,
The laminate is partitioned into a plurality of panels that are continuously provided via a plurality of ruled lines that include convex portions formed so as to protrude to the inner surface side of the laminate,
Each of the plurality of ruled lines is partitioned into a pair of end portions intersecting with other ruled lines or an outer edge of the blank plate, and an intermediate portion located between the pair of end portions,
The plurality of panels have a plurality of body panels constituting the body of the container, a plurality of top panels constituting the top of the container, and a plurality of bottom panels constituting the bottom of the container,
The blank plate includes at least a convex portion that is disposed so as to sandwich the ruled line between the two trunk panels that are provided continuously, and that protrudes to the inner surface side or the outer surface side of the laminate. A pair of first sub-ruled lines are further formed,
The blank board in which the height of the convex part of the pair of first sub-ruled lines is smaller than the height of the convex part of the ruled line sandwiched between the pair of first sub-ruled lines.   2. The blank plate according to claim 1, wherein the height of the convex portions of the pair of first sub-ruled lines is equal to or less than half the height of the convex portions of the ruled lines sandwiched between the pair of first sub-ruled lines.   The blank plate further includes at least a pair of second sub-ruled lines including convex portions that are arranged so as to sandwich the pair of first sub-ruled lines and protrude to the inner surface side or outer surface side of the laminate. The blank board of Claim 1 or 2 currently formed.   The blank board according to claim 3, wherein the height of the convex portions of the pair of second sub-ruled lines is larger than the height of the pair of first sub-ruled lines. A container formed by bending a blank board,
The blank plate includes a laminate in which an outer thermoplastic resin layer, a paper base material layer, and an inner thermoplastic resin layer are laminated,
The laminate is partitioned into a plurality of panels that are continuously provided via a plurality of ruled lines that include convex portions formed so as to protrude to the inner surface side of the laminate,
Each of the plurality of ruled lines is partitioned into a pair of end portions intersecting with other ruled lines or an outer edge of the blank plate, and an intermediate portion located between the pair of end portions,
The plurality of panels have a plurality of body panels constituting the body of the container, a plurality of top panels constituting the top of the container, and a plurality of bottom panels constituting the bottom of the container,
The blank plate includes at least a convex portion that is disposed so as to sandwich the ruled line between the two trunk panels that are provided continuously, and that protrudes to the inner surface side or the outer surface side of the laminate. A pair of first sub-ruled lines are further formed,
The height of the convex portions of the pair of first sub-ruled lines is smaller than the height of the convex portions of the ruled lines sandwiched between the pair of first sub-ruled lines,
The container, wherein the ruled line sandwiched between the pair of first sub-ruled lines is positioned outside the pair of first sub-ruled lines.   The container according to claim 5, wherein the height of the convex portions of the pair of first sub-ruled lines is not more than half the height of the convex portions of the ruled lines sandwiched between the pair of first sub-ruled lines.   The blank plate further includes at least a pair of second sub-ruled lines including convex portions that are arranged so as to sandwich the pair of first sub-ruled lines and protrude to the inner surface side or outer surface side of the laminate. The container according to claim 5 or 6, wherein the container is formed.   The container according to claim 7, wherein the height of the convex portions of the pair of second sub-ruled lines is greater than the height of the pair of first sub-ruled lines.

Images