JP6571429B2 - Paper container - Google Patents

Description

  The present invention relates to a paper container having a gable roof type top that contains a liquid beverage such as milk or juice, and a paper container (including a brick type paper container) having a flat top type top.

  Conventionally, a pair of gable roof forming panels and a pair of gable wall forming panels folded on the inside are provided on a trunk formed in a square cylindrical shape by a seal of a vertical seal panel, which has four trunk panels. A gable roof type (gable top type) paper container having a top portion constituted by a pair of bottom panel under the trunk portion and a bottom portion constituted by a pair of inner surface panels folded inside thereof, and a pair And a bottom part constituted by a pair of bottom panels and a pair of inner panels folded inside the trunk part. A flat-top type paper container having the above has been widely used.

  In general, this type of paper container is often used for a paper container having a large capacity. However, depending on the weight of the contents, there is a risk of causing a so-called swollen body. In addition, since this type of paper container is handled by gripping the trunk when the contents are poured out or carried, it becomes difficult to hold when the trunk is swollen. In particular, when the capacity of the paper container is large or when water droplets are attached to the surface due to condensation, the paper container may slip and drop from the hand. In order to avoid this, it is common to use a paper material having a large basis weight and a high rigidity.

As a paper container that can cope with such a situation, each trunk panel of the trunk section is formed with a ridge in parallel with the bottom, and at the corner where each adjacent trunk panel intersects, that is, at the ridge line section and its vicinity. A paper container in which a region continuous with a ridge is formed in a recess has been proposed (see, for example, Patent Document 1).
In the paper container described in Patent Document 1, the rigidity of each body panel is increased by the protrusions formed on each body panel of the body part, and it is possible to prevent the swelling of the body. Further, the paper container is gripped by the protrusions. It is easy to hold without slipping.

JP 2007-55637 A

In the paper container described in Patent Document 1, the rigidity of each body panel is increased by the ridges formed on each body panel of the body part, and the body bulge is prevented, and further, the ridges are easily grasped. Although it can hold | maintain without slipping, since a protrusion protrudes from the trunk | drum of a paper container, there exists a problem that a protrusion may be damaged at the time of storage and conveyance of a paper container.
In addition, the prevention of torsion and slipping depends on the protruding height of the ridge, and if the height of the ridge is low, the rigidity of each torso panel is reduced accordingly, and the effect of preventing torso is reduced. Since it becomes easy to slip when grasped, it is necessary to increase the height of the momentary protrusion in order to prevent the swelling of the trunk and the prevention of slipping. However, if the height of the ridge is increased, for example, a large gap is formed between the paper containers when the paper containers are arranged, so that the storage amount and transport amount of the paper containers are reduced, and the storage and transport of the paper containers are reduced. There is a problem of causing trouble.

An object of the present invention is to prevent the deformation, it grabbed slide down can easily have prevented when it, further to provide a paper container without the risk of causing a trouble in storage, transport, etc. .

In order to achieve the above object, the invention described in claim 1 is composed of a paper material in which a thermoplastic resin is laminated on the front and back surfaces, and includes four body panels arranged continuously through a body vertical folding line. A square body is formed by a vertical seal panel that is connected to the open end edge of the body panel via a seal vertical fold line, and a pair of the body panels that are opposed to each other via a top horizontal fold line at the upper end of the body panel And a pair of side panels facing each other and positioned between the pair of top panels, and the pair of top panels and the pair of side panels are folded and sealed to be sealed. A top portion is formed, and at the lower end of the body panel, a pair of bottom panels facing each other via a bottom lateral folding line, and a pair of inner panels facing each other positioned between the pair of bottom panels The pair In the paper container bottom is formed by the bottom panel and the pair of inner surface panels are sealed are sealed folded, on one or both of the body portion panel of both sides of the barrel longitudinal fold line, said barrel An arc-shaped first rib forming fold line is provided along the vertical fold line, and a region surrounded by the first rib forming fold line and the body vertical fold line becomes a first rib forming portion, and the first rib forming portion Are bonded to adjacent panels, and a first rib recessed in an arc shape is formed in a part on the trunk vertical folding line .

The invention described in claim 2 is characterized in that the first rib forming fold line described in claim 1 is connected to or close to the body vertical fold line.

The invention described in claim 3 is made of a paper material in which a thermoplastic resin is laminated on the front and back surfaces, and includes four body panels that are arranged continuously via a body vertical folding line, and is provided at an open edge of the body panel. A rectangular barrel is formed by a longitudinal seal panel that is provided continuously through a seal vertical fold line, and a pair of top surface panels that are opposed to each other via a top horizontal fold line at the upper end of the barrel panel, and the pair of pairs A pair of side panels facing each other and positioned between the top panels are connected to each other, and the pair of top panels and the pair of side panels are folded, sealed, and sealed to form a top, A pair of bottom panels facing each other via a bottom horizontal folding line and a pair of facing inner panels positioned between the pair of bottom panels are connected to the lower end of the body panel, and the pair of bottom panels And the pair of inner surfaces In the paper container bottom is formed by the channel is sealed is sealed folded, on one or both of the barrel panels located on both sides of the sealing longitudinal fold line and the longitudinal sealing panel, the seal An arc-shaped second rib forming fold line is provided along the vertical fold line, and a region surrounded by the second rib forming fold line and the seal vertical fold line is a second rib forming portion, and the second rib forming portion is adjacent. A second rib that is bonded to the panel and is recessed in a circular arc shape is formed on a part of the seal vertical folding line .

According to a fourth aspect of the present invention, in the paper container of the first aspect, the seal vertical fold line is provided on one or both of the body panel and the vertical seal panel located on both sides of the seal vertical fold line. A second rib-forming fold line is provided along an arc, and a region surrounded by the second rib-forming fold line and the seal vertical fold line is a second rib-forming portion, and the second rib-forming portion is adjacent to the panel. A second rib that is recessed in a circular arc shape is formed on a part of the vertical folding line of the seal.

The invention according to claim 5, according to claim 3 or 4, wherein the second rib forming fold line, characterized in that both ends are connected before Symbol sealing longitudinal fold line or close.

The invention described in claim 6 is made of a paper material in which a thermoplastic resin is laminated on the front and back surfaces, and includes four body panels that are arranged continuously through a body vertical folding line, and is provided at an open edge of the body panel. A rectangular barrel is formed by a longitudinal seal panel that is provided continuously through a seal vertical fold line, and a pair of top surface panels that are opposed to each other via a top horizontal fold line at the upper end of the barrel panel, and the pair of pairs A pair of side panels facing each other and positioned between the top panels are connected to each other, and the pair of top panels and the pair of side panels are folded, sealed, and sealed to form a top, A pair of bottom panels facing each other via a bottom horizontal folding line and a pair of facing inner panels positioned between the pair of bottom panels are connected to the lower end of the body panel, and the pair of bottom panels And the pair of inner surfaces In the paper container bottom is formed by being sealed been panel is folded seal, on one or both of the body panel and the pair of top surface panels positioned on both sides of the top transverse fold lines, and And / or one or both of the body panel and the pair of side panels located on both sides of the top horizontal fold line is provided with an arc-shaped third rib forming fold line along the top horizontal fold line, A region surrounded by the third rib forming fold line and the top horizontal fold line is a third rib forming portion, and the third rib forming portion is bonded to an adjacent panel and is recessed in an arc shape on the top horizontal fold line. A rib is formed .

The invention according to claim 7 is the paper container according to any one of claims 1 to 5 , wherein one of the body panel and the pair of top panels positioned on both sides of the top horizontal folding line. Alternatively, and / or on one or both of the body panel and the pair of side panels located on both sides of the top horizontal fold line, and a fold line for forming a third rib in an arc shape along the top horizontal fold line A region surrounded by the third rib forming fold line and the top horizontal fold line becomes a third rib forming portion, and the third rib forming portion is bonded to an adjacent panel and is arcuate on the top horizontal fold line. A third rib that is recessed is formed .

The invention described in claim 8 is characterized in that the third rib forming fold line according to claim 6 or 7 is connected to or close to the top lateral fold line.

The invention according to claim 9 is made of a paper material in which a thermoplastic resin is laminated on the front and back surfaces, and includes four body panels connected continuously via a body vertical folding line, and is provided at an open edge of the body panel. A rectangular barrel is formed by a longitudinal seal panel that is provided continuously through a seal vertical fold line, and a pair of top surface panels that are opposed to each other via a top horizontal fold line at the upper end of the barrel panel, and the pair of pairs A pair of side panels facing each other and positioned between the top panels are connected to each other, and the pair of top panels and the pair of side panels are folded, sealed, and sealed to form a top, A pair of bottom panels facing each other via a bottom horizontal folding line and a pair of facing inner panels positioned between the pair of bottom panels are connected to the lower end of the body panel, and the pair of bottom panels And the pair of inner surfaces In the paper container bottom is formed by being sealed been panel is folded seal, on one or both of the barrel panels located on both sides of the bottom lateral fold line and said pair of bottom panels, and / Alternatively, an arc-shaped fourth rib forming fold line is provided along one or both of the body panel and the pair of inner surface panels located on both sides of the bottom horizontal fold line, A region surrounded by the four rib forming fold line and the bottom horizontal fold line becomes a fourth rib forming portion, and the fourth rib forming portion is bonded to an adjacent panel and is recessed in an arc shape on the bottom horizontal fold line. Is formed .

The invention according to claim 10 is the paper container according to any one of claims 1 to 8 , wherein one of the body panel and the pair of bottom panels positioned on both sides of the bottom horizontal folding line or On one or both of the body panel and the pair of inner surface panels located on both sides and / or on both sides of the bottom horizontal fold line, an arc-shaped fourth rib forming fold line is formed along the bottom horizontal fold line. And a region surrounded by the fourth rib forming fold line and the bottom horizontal fold line is a fourth rib forming portion, and the fourth rib forming portion is bonded to an adjacent panel so as to form an arc on the bottom horizontal fold line. A recessed fourth rib is formed .

According to an eleventh aspect of the present invention, the fourth rib forming fold line according to the ninth or tenth aspect is characterized in that both ends thereof are connected to or close to the bottom horizontal fold line.

According to the paper container of claim 1, since adhered to on the barrel longitudinal fold line to the adjacent panels of the first rib forming portion forms a first rib, the rigidity of the body portion by the first rib Can be prevented and swelling of the trunk can be prevented.
In addition, since the first ribs are formed by bonding the body panel on both sides, the bonded body panel is recessed inward by that amount, and the first rib is in a state of standing up from the recess. In addition, since the first rib is as thick as two body panels, the rib itself has high rigidity, and a finger can be firmly hooked on the first rib. In this way, when the body portion is held, a finger is hooked on the first rib, so that slipping down when the paper container is gripped can be surely prevented, and the paper container can be easily held.
Furthermore, since the first rib fits within the outer dimensions of the paper container and does not protrude from the body portion, the first rib does not get in the way when the paper container is stored and transported, and the storage and transport of the paper container is hindered. There is no fear.
Also , since one or both of the body panel on both sides sandwiching the body vertical fold line is provided with the arc-shaped first rib forming fold line along the body vertical fold line , the first rib forming fold line A 1st rib can be easily formed by bending along.

According to the second aspect of the present invention, since the first rib forming fold line is connected to or close to the body vertical fold line, the first rib forming fold line is bent along the first rib forming fold line. The first rib can be easily formed on the vertical folding line.

According to the invention of claim 3, since you adhered to the panel adjacent the second rib forming portion forms a second rib on the sealing longitudinal fold lines, increasing the rigidity of the body portion by the second rib , Can prevent swelling.
In addition, since the second ribs are formed by bonding the body panel on both sides, the bonded body panel is recessed inward by that amount, and the second ribs stand out from this recess. In addition, since the second rib is as thick as two body panels, the rigidity of the rib itself is high and a finger can be firmly hooked on the second rib. In this way, when the body portion is held, the finger is hooked on the second rib, so that slipping down when the paper container is gripped can be surely prevented, and the paper container can be easily held .
Et al is, the second rib fits in the outer dimensions of the paper container, because it does not protrude from the body part, second ribs during storage and transportation of the paper container is not a hindrance, trouble in storage and transport, etc. of the paper container There is no risk of coming.

According to the invention described in claim 4 , since the first rib is formed on the body vertical fold line and the second rib is formed on the seal vertical fold line , the body portion is formed by the first rib and the second rib. The rigidity of the body can be increased and swelling of the trunk can be prevented.

According to the invention of claim 5, for the second rib forming fold line, so that both ends are connected to the body portion longitudinal fold line or close, by folding along the second rib forming fold line, shea The second rib can be easily formed on the vertical folding line.

According to the invention of claim 6, since adhered to the panel adjacent the third rib forming portion forms a third rib on top transverse fold line, the top by the third ribs, in particular the top horizontal fold line When the container is stored or transported, force is applied to the top horizontal fold line, and the top fold line in the mountain fold state is recessed into the valley fold to prevent deformation of the paper container. be able to.
In addition, by forming the third rib along the top horizontal fold line, when grasping the upper portion of the body portion of the paper container and taking out the paper container, the finger can be firmly hooked on the third rib, It is possible to reliably prevent slipping off when grasped, and to easily hold the paper container.
Furthermore, since the third rib fits within the outer dimensions of the paper container and does not protrude from the body portion, the third rib does not interfere with the storage and transportation of the paper container, which hinders the storage and transportation of the paper container. There is no fear.

According to the invention described in claim 7 , since the first rib on the trunk vertical fold line and / or the second rib on the seal vertical fold line and the third rib on the top horizontal fold line are formed, not only the top, The rigidity of the body portion is also increased, and the deformation of the paper container can be further prevented.
In addition, since the first rib is formed on the body vertical fold line and the third rib is formed on the top horizontal fold line, not only when the paper container is taken out by grasping the upper part of the body of the paper container, Since the fingers can be firmly hooked to the 1st and 3rd ribs when holding and carrying the container, it is possible to reliably prevent slipping down when holding the paper container and to hold the paper container easily Will be able to.

According to the eighth aspect of the present invention, the third rib forming fold line is connected to or close to the top horizontal fold line, so that the third rib forming fold line can be bent along the third rib forming fold line. The third rib can be easily formed on the broken line.

According to the invention described in claim 9, since the adhesive to on the bottom transverse fold line to the adjacent panels of the fourth rib forming portions to form the fourth rib, the bottom by the fourth rib, in particular the bottom horizontal fold line When the paper container is stored or transported, a force is applied to the bottom horizontal fold line, and the bottom horizontal fold line in the mountain folded state becomes a valley folded state to prevent deformation of the paper container. be able to.
In addition, by forming the fourth rib on the bottom transverse fold lines that face each other, a recess is formed at the bottom, preventing the center of the bottom from swelling due to the weight of the contents and preventing the paper container from becoming seated. can do.
Furthermore, since the fourth rib fits within the outer dimensions of the paper container and does not protrude from the body portion, the fourth rib does not interfere with the storage and transport of the paper container, which hinders the storage and transport of the paper container. There is no fear.

According to the tenth aspect of the present invention, the first rib on the trunk vertical fold line and / or the second rib on the seal vertical fold line and / or the fourth on the third rib and bottom horizontal fold line on the top horizontal fold line . Since the rib is formed, not only the bottom but also the rigidity of the trunk and / or the top is increased, and the deformation of the paper container can be prevented more reliably.

According to the invention described in claim 11, for the fourth rib forming fold line, so that both ends are connected to the bottom transverse fold line or close, by folding along the fourth rib forming fold line, the bottom horizontal The fourth rib can be easily formed on the broken line.

It is a perspective view which shows the 1st example of this invention. It is a side view of the paper container in the 1st example. It is a trunk | drum cross-sectional view of the paper container in a 1st example. It is an expanded view which shows the carton blanks before the assembly process of the paper container in a 1st example. It is an expanded view which shows the carton blanks before an assembly process which shows an example of the broken line for 1st rib formation. It is a perspective view which shows the 2nd example of this invention. It is a side view of the paper container in the 2nd example. It is a trunk | drum cross-sectional view of the paper container in a 2nd example. It is an expanded view which shows the carton blanks before the assembly process of the paper container in a 2nd example. It is an expanded view which shows the carton blanks before an assembly process which shows an example of the folding line for 1st rib formation, and the folding line for 2nd rib formation . It is a perspective view which shows an example which implemented the 2nd example in the flat top type paper container. It is an expanded view which shows the carton blanks before the assembly process of the paper container in a 3rd example. It is a partial top longitudinal section view of the paper container in the third example. It is a perspective view which shows an example which implemented the 3rd example in the flat top type paper container. It is an expanded view which shows the carton blanks before the assembly process of the paper container in a 4th example. It is a top part longitudinal section of the paper container in the 4th example. It is an expanded view which shows the carton blanks before an assembly process which shows an example of the broken line for 3rd rib formation. It is an expanded view which shows the carton blanks before the assembly process of the paper container in a 5th example. It is an expanded view which shows the carton blanks before the assembly process of the paper container in a 6th example. It is a bottom part longitudinal section figure of the paper container in the 6th example. It is a perspective view which shows an example which implemented the 6th example to the flat top type paper container. It is an expanded view which shows the carton blanks before the assembly process of the paper container in a 7th example. It is a bottom part longitudinal section figure of the paper container in the 7th example. It is an expanded view which shows the carton blanks before an assembly process which shows an example of the broken line for 4th rib formation. It is an expanded view which shows the carton blanks before the assembly process of the paper container in an 8th example. It is an expanded view which shows the carton blanks before the assembly process of the paper container in a 9th example.

Hereinafter, an example of an embodiment of a paper container according to the present invention will be described in detail with reference to the drawings.
1 to 5 show a first example in which the present invention is applied to a gable roof type paper container, FIG. 1 is a perspective view showing the paper container of this example, and FIG. 2 is a side view of the paper container of this example. 3 is a cross-sectional view of the trunk of the paper container of this example, FIG. 4 is a development view showing the carton blanks before the assembling process of this example, and FIG. 5 is an example before the assembling process showing an example of the first rib forming folding line in this example. It is a development view showing carton blanks.

The gable roof type paper container of this example is assembled by carton blanks having the unfolded structure shown in FIG.
The carton blanks for assembling the paper container of this example are made of a paper material in which a thermoplastic resin is laminated on the front and back surfaces, and the four body panels 4, 5, 6, 7 are connected via the body vertical folding lines 1, 2, 3. In addition, a longitudinal seal panel 9 is connected to the open end edge of the body panel 7 via a seal longitudinal fold line 8.

A pair of top surface panels 14, 15 facing each other are connected to the upper ends of the body panels 4, 6, with outer top seal panels 12, 13 at the top via top lateral folding lines 10, 11. . Further, at the upper ends of the other opposing body panels 5, 7, there are inner top seal panels 18, 19 at the top via top horizontal folding lines 16, 17, and between the pair of top surface panels 14, 15. A pair of side panels 20 and 21 which are positioned and opposed to each other are connected.
In the gable roof type paper container of this example, the pair of top panels 14 and 15 are a pair of gable roof forming panels, and the pair of side panels 20 and 21 are a pair of gable wall forming panels.
In this example, at the time of opening, one side panel that has been heat-sealed is drawn out as a spout, but this is not limiting, and a plug serving as a spout is attached to one of the top panels. Also good.

  In addition, a pair of bottom panels 24 and 25 facing each other through bottom bottom folding lines 22 and 23 are connected to the lower ends of the body panels 4 and 6, and the bottom sides of the body panels 5 and 7 are connected to the bottom side. A pair of inner surface panels 28 and 29 which are located between the pair of bottom surface panels 24 and 25 and are opposed to each other via the broken lines 26 and 27 are connected.

Then, a first rib forming fold line 30 is provided along the trunk vertical fold line 1 on one trunk panel 5 of the trunk panels 4 and 5 on both sides of the trunk vertical fold line 1. A first rib forming fold line 31 is provided along the body vertical fold line 2 on one body panel 5 of the body panels 5 and 6 on both sides of the fold line 2.

Both ends of the first rib forming folding line 30 are connected to or close to the trunk vertical folding line 1, and both ends of the first rib forming folding line 31 are connected to the trunk vertical folding line 2. Or in close proximity. Here, the proximity means that when the first rib forming fold lines 30 and 31 are bent, the first rib forming fold lines 30 and 31 are easily bent along the extended lines to the body vertical fold lines 1 and 2. It means a certain distance. In this example, the first rib forming fold lines 30 and 31 are arc-shaped with both ends connected to the trunk vertical fold lines 1 and 2, respectively, and are provided symmetrically inward with respect to each other.

The region surrounded by the first rib forming fold line 30 and the body vertical fold line 1 becomes the first rib forming portion 32, and the region surrounded by the first rib forming fold line 31 and the body vertical fold line 2 is the first rib forming. Part 33.

The position at which the first rib forming folding lines 30 and 31 are provided is not particularly limited. However, since the swelling of the paper container filled with the contents occurs on the bottom side of the trunk due to the weight of the contents, the first rib forming folding lines are not provided. 30 and 31 are preferably provided on the bottom side of the middle position of the body.

Further, as shown in FIG. 5, first rib forming folding lines 30 a and 30 b are provided on both of the body panel 4 and 5 on both sides of the body vertical folding line 1, and both sides of the body vertical folding line 2 are sandwiched. The first rib forming fold lines 31a and 31b may be provided on both the body panels 5 and 6.

  In the assembly of the paper container of the first example by the carton blanks having such a development structure, first, the body vertical fold lines 1, 2, 3 and the seal vertical fold line 8 are bent, and the vertical seal panel 9 is attached to the body panel 4. A square cylindrical body 36 is formed by sealing at the vertical edge.

Then, the first rib forming folding lines 30 and 31 provided on the trunk panel 5 are valley-folded, and the first rib forming sections 32 and 33 are bonded to the adjacent trunk panels 4 and 6 to form the trunk vertical folding line 1. , 2 are formed with first ribs 34, 35.
As another assembly example, the body vertical folding lines 1, 2, 3 and the seal vertical folding line 8 are folded, the first rib forming folding lines 30, 31 are valley-folded, and the first rib forming sections 32, 33 are adjacent to each other. After forming the first ribs 34 and 35 by bonding to the body panels 4 and 6 to be formed, the longitudinal seal panel 9 is sealed to the longitudinal edge of the body panel 4 to form a square cylindrical body portion 36. .

By forming the first ribs 34 and 35 in this manner, the body panel 5 between the first rib forming fold lines 30 and 31 has the concave portions 37 having the first ribs 34 and 35 standing upright on both sides. It is formed.

  In the body portion 36 formed in this way, the body portions 5 and 7 are connected to the lower ends of the inner surface panels 28 and 29, and are connected to the lower ends of the body portion panels 4 and 6. The pair of bottom panels 24 and 25 are folded, sealed, and sealed to form the bottom 38.

  Next, a pair of side panels 20 and 21 connected to the upper ends of the body panels 5 and 7 are provided between the pair of top surface panels 14 and 15 connected to the upper ends of the body panels 4 and 6. The top 39 is formed by being folded and sealed between the outer top seal panels 12 and 13 and the inner top seal panels 18 and 19 at predetermined positions.

According to the paper container configured as described above, the rigidity of the body part 36 is increased by the first ribs 34 and 35 formed on the body part vertical folding lines 1 and 2, and the body swelling can be prevented.
Moreover, the 1st ribs 34 and 35 formed on the trunk | drum vertical folding lines 1 and 2 are the states cut | disconnected from the trunk | drum panel 5, and in addition, the 1st ribs 34 and 35 are two trunk | drum panels. Since the thickness of the rib is high, the rigidity of the rib itself is high, and the finger can be firmly hooked on the first ribs 34 and 35. As described above, when the body portion 36 is held, the fingers can be hooked on the first ribs 34 and 35 to prevent slipping off when the paper container is grasped, and the paper container can be easily held. Can do.
Further, since the first ribs 34 and 35 fit within the outer dimensions of the paper container and do not protrude from the body portion 36, the first ribs 34 and 35 do not interfere with the storage and transportation of the paper container, and the paper container is stored. There is no risk of disrupting transport.

Next, a second example of the embodiment of the paper container according to the present invention will be described.
6 to 10 show a second example in which the present invention is applied to a gable roof type paper container, FIG. 6 is a perspective view showing the paper container of this example, and FIG. 7 is a side view of the paper container of this example. 8 is a cross-sectional view of the trunk of the paper container of this example, FIG. 9 is a development view showing the carton blanks before assembly processing of this example, and FIG. 10 is a fold line for forming the first rib and a fold line for forming the second rib in this example. It is an expanded view which shows the carton blanks before the assembly process which shows an example.
About the paper container of the 2nd example, the same numerals are attached about the same composition as the 1st example, the explanation is omitted, and only the composition different from the 1st example is explained.

The gable roof type paper container of the second example is assembled by carton blanks having the unfolded structure shown in FIG.
In the second example, first rib forming folding lines 30 and 31 are provided along the trunk vertical folding lines 1 and 2, and one trunk of the trunk panels 6 and 7 on both sides sandwiching the trunk vertical folding line 3 is provided. A first rib-forming fold line 40 is provided on the body panel 7 along the body vertical fold line 3, and one body body of the body panel 7 and the longitudinal seal panel 9 located on both sides of the seal vertical fold line 8. A second rib forming fold line 41 is provided on the part panel 7 along the seal vertical fold line 8.

The first rib forming fold line 30, 31, 40 has its opposite ends are provided with connecting to the body portion longitudinal fold lines 1, 2 and 3, respectively, or near, the second rib forming fold line 41, whose ends It is connected to or close to the seal vertical folding line 8. Here, the proximity means that when the first rib forming fold lines 30, 31, 40 and the second rib forming fold line 41 are bent, the first rib forming fold lines 30, 31, 40 and the second rib forming fold line. 41 means the distance of the extent which can be bent without difficulty to the trunk | drum vertical fold line 1,2,3 or the seal vertical fold line 8 along the extension line. In this example, the first rib forming fold lines 30, 31, 40 and the second rib forming fold line 41 have arc shapes in which both ends thereof are connected to the body vertical fold lines 1, 2, 3 or the seal vertical fold line 8, respectively. The first rib forming fold lines 30 and 31 provided on the body panel 5 and the first rib forming fold line 40 and the second rib forming fold line 41 provided on the body panel 7 are inward of each other. It is provided in line symmetry.

The region surrounded by the first rib forming fold line 30 and the body vertical fold line 1 becomes the first rib forming portion 32, and the region surrounded by the first rib forming fold line 31 and the body vertical fold line 2 is the first rib forming. The region surrounded by the first rib forming fold line 40 and the body vertical fold line 3 becomes the first rib forming portion 42, and the region surrounded by the second rib forming fold line 41 and the seal vertical fold line 8 is the second rib. It becomes the formation part 43.

The position where the first rib forming fold lines 30, 31, 40 and the second rib forming fold line 41 are provided is not particularly limited, but the swelling of the paper container filled with the contents is below the trunk due to the weight of the contents. In order to generate | occur | produce, it is preferable to provide the 1st rib formation folding line 30,31,40 and the 2nd rib formation folding line 41 below the intermediate position of a trunk | drum.

Further, as shown in FIG. 10, first rib forming folding lines 30 a and 30 b are provided on both of the body panel 4 and 5 on both sides of the body vertical fold line 1, and both sides of the body vertical fold line 2 are sandwiched. the first rib forming fold line 31a to both of the body panels 5,6, and provided 31b, both the rib forming fold line first 40a of both sides of the body portion longitudinal fold line 3 of the body panels 6,7 and 40b The second rib forming fold lines 41a and 41b are provided on both sides of the body panel 7 and the longitudinal seal panel 9 on both sides of the seal longitudinal fold line 8 and the longitudinal edge of the body panel 4 to which the longitudinal seal panel 9 is bonded. , 41c may be provided.

  In the assembly of the paper container of the second example by the carton blanks having such a development structure, first, the body vertical fold lines 1, 2, 3 and the seal vertical fold line 8 are bent, and the vertical seal panel 9 is attached to the body panel 7. A square cylindrical body 36 is formed by sealing at the vertical edge.

Then, the first rib forming folding lines 30 and 31 provided on the trunk panel 5 and the first rib forming folding lines 40 and the second rib forming folding lines 41 provided on the trunk panel 7 are valley-folded . The first rib forming portions 32 and 33 are bonded to the adjacent barrel panels 4 and 6, and the first rib forming portion 42 and the second rib forming portion 43 are bonded to the adjacent barrel panel 6 and the vertical seal panel 9. First ribs 34, 35, 44 are formed on the body vertical folding lines 1, 2, 3 and second ribs 45 are formed on the seal vertical folding lines 8 .

As another assembly example, the body vertical fold lines 1, 2, 3 and the seal vertical fold line 8 are folded, the first rib forming fold lines 30, 31, 40 and the second rib forming fold line 41 are valley-folded, The first rib forming portions 32 and 33 are bonded to the adjacent barrel panels 4 and 6, and the first rib forming portion 42 and the second rib forming portion 43 are bonded to the adjacent barrel panel 6 and the vertical seal panel 9. After forming the first ribs 34, 35, 44 and the second rib 45, the vertical seal panel 9 is sealed to the vertical edge of the body panel 4 to form a rectangular tubular body 36.

By forming the first ribs 34, 35, 44 and the second ribs 45 in this way, the body panel 5 between the inwardly facing first rib forming fold lines 30, 31 has the first recess 37 having a first rib 34, 35 is formed, also, inward in the body panel 7 between the first rib forming fold lines 40 and the second rib forming fold line 41, first rib steep on both sides A recess 46 having 44 and a second rib 45 is formed.

According to the paper container thus configured, the rigidity of the body portion 36 is determined by the first ribs 34, 35, 44 and the second rib 45 formed on the body vertical fold lines 1, 2, 3 and the seal vertical fold line 8. Can be prevented and swelling of the trunk can be prevented. In particular, in this example, the first ribs 34, 35, 44 and the second ribs 45 are formed at all the corners of the body part 36 formed at the positions of the body part vertical folding lines 1, 2, 3 and the seal vertical folding line 8. Therefore, the rigidity of the trunk portion 36 is further increased, and the swelling of the trunk portion can be reliably prevented.
Further, by forming the first ribs 34, 35, 44 and the second rib 45 along the body vertical fold lines 1, 2, 3 and the seal vertical fold line 8, the recesses 37, 46 are formed in the body panels 5, 7. By forming and gripping the part by hand, the paper container can be easily held, and slipping down when the paper container is gripped can be surely prevented.
Further, since the first ribs 34, 35, 44 and the second rib 45 fit within the outer dimensions of the paper container and do not protrude from the body portion 36, the first ribs 34, 35, 44 and The second rib 45 does not get in the way, and there is no risk of hindering storage or conveyance of the paper container.

FIG. 11 is a perspective view showing an example in which the second example of the present invention is implemented in a flat-top type paper container.
Even in this example, the first ribs 34, 35, 44 and the second rib 45 are formed on the trunk vertical folding lines 1, 2, 3 and the seal vertical folding line 8 by the same assembly as the gable roof type paper container. The first ribs 34, 35, 44 and the second rib 45 form recesses 37, 46 in the body portion 36. The pair of bottom panels connected to the lower end of the body panel is folded and sealed on the outside of the pair of inner panels connected to the lower end of the body panel in the body 36 formed in this way. The bottom portion 38 is formed by being sealed, and a pair of top surface panels connected to the body panel outside the pair of side panels connected to the upper end of the body panel. The top 39 is formed by folding.

Next, a third example of the embodiment of the paper container according to the present invention will be described.
12 and 13 show a third example in which the present invention is applied to a gable roof type paper container, FIG. 12 is a development view showing the carton blanks before assembly processing of this example, and FIG. 13 shows the paper container in this example. It is a top part longitudinal section.
About the paper container of 3rd example, about the same structure as 1st example and 2nd example, the same code | symbol is attached | subjected and the description is abbreviate | omitted, and only a different structure from 1st example and 2nd example is demonstrated.

The gable roof type paper container of the third example is assembled by carton blanks having the unfolded structure shown in FIG.
In the third example, a third rib forming fold line 47 is provided along the top horizontal fold line 10 on one of the body panel 4 of the body panel 4 and the top panel 14 positioned on both sides of the top horizontal fold line 10. Further, third rib forming fold line 48 along the top horizontal fold line 11 is provided on one of the body panels 6 of the body panel 6 and the top surface panel 15 across the top transverse fold line 11.

The third rib forming folding lines 47 and 48 are provided such that both ends thereof are connected to or close to the top horizontal folding lines 10 and 11, respectively. Here, the proximity means that when the third rib forming fold lines 47 and 48 are bent, the third rib forming fold lines 47 and 48 are reasonably bent along the extended lines to the top lateral fold lines 10 and 11. Mean distance. In this example, the third rib forming fold lines 47 and 48 are provided in an arc shape in which both ends thereof are connected to the top horizontal fold lines 10 and 11, respectively.
A region surrounded by the third rib forming fold line 47 and the top horizontal fold line 10 is the third rib forming portion 49, and a region surrounded by the third rib forming fold line 48 and the top horizontal fold line 11 is the third rib forming portion 50. It becomes.

In the assembly of the paper container of the third example by the carton blanks having such an unfolded structure, first, the rectangular cylindrical body portion 36 is formed, and the bottom portion 38 is formed in the same manner as in the first and second examples. .
Next, the pair of side panels 20, 21 are folded between the pair of top panels 14, 15, and the third rib forming fold line 47 provided on the trunk panel 4 and the third panel provided on the trunk panel 6 are provided . The rib forming fold line 48 is valley-folded, and the third rib forming portions 49 and 50 are bonded to the adjacent top panel 14 and 15 to form the third ribs 51 and 52 on the top horizontal fold lines 10 and 11, and the outside. The top seal panels 12 and 13 and the inner top seal panels 18 and 19 are sealed at predetermined positions to form a top portion 39.

According to the paper container thus configured, the third ribs 51 and 52 formed on the top horizontal fold lines 10 and 11 increase the rigidity of the top 39, particularly the top horizontal fold lines 10 and 11, and the paper container It is possible to prevent the paper container from being deformed, such as when a force is applied to the top horizontal folding lines 10 and 11 during storage or transportation, and the top horizontal folding lines 10 and 11 in the mountain folded state are recessed into a valley.
In addition, by forming the third ribs 51 and 52 along the top horizontal folding lines 10 and 11, when grasping the upper portion of the body portion 36 of the paper container and taking out the paper container, a finger is applied to the third ribs 51 and 52. Since it can be firmly hooked, it is possible to reliably prevent slipping down when the paper container is gripped, and the paper container can be easily held.
Further, since the third ribs 51 and 52 fit within the outer dimensions of the paper container and do not protrude from the body 36, the third ribs 51 and 52 do not interfere with the storage and transport of the paper container, and the paper container is stored. There is no risk of disrupting transport.

FIG. 14 is a perspective view showing an example in which the third example according to the present invention is implemented in a flat-top type paper container.
Even in this example, by assembling the same paper container of gable roof, the third ribs 51, 52 along the upper top horizontal fold line 10 and 11 are formed, recesses in the top portion 39 by the third ribs 51, 52 53 is formed.

Next, a fourth example of the embodiment of the paper container according to the present invention will be described.
15 and 16 show a fourth example in which the present invention is implemented in a gable roof type paper container, FIG. 15 is a development view showing the carton blanks before assembly processing in this example, and FIG. 16 shows the paper container in this example. It is a top part longitudinal section.
Regarding the paper container of the fourth example, the same components as those of the first to third examples are denoted by the same reference numerals and the description thereof is omitted, and only the components different from the first to third examples will be described.

The gable roof type paper container of the fourth example is assembled by carton blanks having the unfolded structure shown in FIG.
In the fourth example, a third rib forming fold line 54 is provided along the top horizontal fold line 16 on one body panel 5 of the body panel 5 and the side panel 20 located on both sides across the top horizontal fold line 16, the third rib forming fold line 55 along the top horizontal fold line 17 is provided on one of the body panel 7 of the top transverse fold line 17 a sandwiched body panel 7 and side panels 21.

Both ends of the third rib forming folding lines 54 and 55 are respectively connected to or close to the top horizontal folding lines 16 and 17. Here, when the third rib forming fold lines 54 and 55 are bent, the third rib forming fold lines 54 and 55 are reasonably bent along the extended lines to the top lateral fold lines 16 and 17. Mean distance. In this example, the third rib forming folding lines 54 and 55 are provided in an arc shape in which both ends thereof are connected to the top horizontal folding lines 16 and 17, respectively.
The region surrounded by the third rib forming fold line 54 and the top horizontal fold line 16 is the third rib forming portion 56, and the region surrounded by the third rib forming fold line 55 and the top horizontal fold line 17 is the third rib forming portion 57. It becomes.

In the assembly of the paper container of the fourth example by the carton blanks having such an unfolded structure, first, the rectangular cylindrical body portion 36 is formed, and the bottom portion 38 is formed in the same manner as in the first and second examples. .
Next, the pair of side panels 20 and 21 are folded between the pair of top panels 14 and 15, and the third rib forming fold line 54 provided on the trunk panel 5 and the third fold line 54 provided on the trunk panel 7 . The rib forming fold line 55 is valley-folded, and the third rib forming portions 56 and 57 are bonded to the adjacent side panels 20 and 21 to form the third ribs 58 and 59 on the top lateral fold lines 16 and 17, and the outer top. The seal panels 12 and 13 and the inner top seal panels 18 and 19 are sealed at predetermined positions to form a top portion 39.

According to the paper container configured as described above, the third ribs 58 and 59 formed on the top horizontal folding lines 16 and 17 increase the rigidity of the top 39, particularly the top horizontal folding lines 16 and 17, and the paper container During storage, transportation, etc., a force is applied to the top horizontal fold lines 16 and 17, and the deformation of the paper container such as the top fold lines 16 and 17 in the mountain fold state being recessed and recessed can be prevented.
Further, by forming the third ribs 58 and 59 along the top horizontal folding lines 16 and 17, when grasping the upper portion of the body portion 36 of the paper container and taking out the paper container, the fingers are firmly attached to the third ribs 58 and 59. Therefore, slipping down when the paper container is gripped can be surely prevented, and the paper container can be easily held.
Further, since the third ribs 58 and 59 fit within the outer dimensions of the paper container and do not protrude from the body 36, the third ribs 58 and 59 do not interfere with the storage and transport of the paper container, and the paper container is stored. There is no risk of disrupting transport.

In the third example, the third rib forming fold line 47 is provided along the top transverse fold line 10 and 11, also in the fourth example, a third rib formed along the top transverse fold line 16, 17 Although the folding lines 54 and 55 are provided, the third rib forming folding lines 47, 48, 54, and 55 may be provided along all the top horizontal folding lines 10, 11, 16, and 17, respectively. 17, third rib forming folding lines 47 a and 47 b are provided on both the body panel 4 and the top panel 14 on both sides of the top horizontal fold line 10, and the body parts on both sides of the top lateral fold line 11 are disposed. third rib forming fold line 48a to both panels 6 and top surface panel 15, the provided 48b, third rib forming fold line 54a to both opposite sides of the top transverse fold line 16 of the body panel 5 and the side panels 20, 54b provided on both sides sandwiching the top horizontal folding line 17 Third rib forming fold line 55a to both the panel 7 and side panels 21, 55b may be provided.
Further, the third rib forming fold lines 47 , 48 , 54 , and 55 provided along the top horizontal fold lines 10 , 11 , 16, and 17 are both ends of the top horizontal fold lines 10 , 11 , 16, and 17 and the trunk vertical fold lines. You may form in the full length of the top horizontal folding line 10 , 11 , 16 , 17 connected to the intersection with 1, 2, 3 or the seal vertical folding line 8. FIG.

Next, a fifth example of the embodiment of the paper container according to the present invention will be described.
FIG. 18 is a developed view showing a carton blank before assembly processing of a fifth example in which the present invention is applied to a gable roof type paper container.
Regarding the paper container of the fifth example, the same components as those of the first to fourth examples are denoted by the same reference numerals, and the description thereof is omitted. Only the components different from the first to fourth examples will be described.

The gable roof type paper container of the fifth example is assembled by carton blanks having the unfolded structure shown in FIG.
The fifth example is a combination of the second example and the fourth example, and the first rib forming folding lines 30 and 31 provided along the body vertical folding lines 1, 2 and 3 and the seal vertical folding line 8. , 40 and the second rib forming fold line 41, third rib forming fold lines 54, 55 are provided along the top horizontal fold lines 16, 17, respectively.

The assembling of the paper container of the fifth example by the carton blanks having such an unfolded structure forms the body part 36, the bottom part 38, and the top part 39 in the same manner as the second example and the fourth example.
According to the thus configured paper container, the first ribs 34, 35, 44 and the second rib 45 formed on the body vertical folding lines 1, 2, 3 and the seal vertical folding line 8 and the top horizontal folding line 16, The third ribs 58 and 59 formed on the upper portion 17 increase the rigidity of the body portion 36 and the top portion 39, thereby further preventing the paper container from being deformed.
The first ribs 34, 35, 44, the second rib 45, the second rib 45, the second rib 45, the second rib 45, the second rib 45, the second rib 45, the second rib 45, the second rib 45, Since the fingers can be firmly hooked on the three ribs 58 and 59 , slipping down when the paper container is gripped can be surely prevented, and the paper container can be easily held.
Since the other effects are the same as those of the second and fourth examples, the description of the second and fourth examples is cited and the description thereof is omitted.

Next, a sixth example of the embodiment of the paper container according to the present invention will be described.
19 and 20 show a sixth example in which the present invention is applied to a gable roof type paper container, FIG. 19 is a development view showing the carton blanks before assembly processing of this example, and FIG. 20 shows the paper container in this example. It is a bottom part partial longitudinal cross-sectional view.
Regarding the paper container of the sixth example, the same components as those of the first to fifth examples are denoted by the same reference numerals, and the description thereof is omitted. Only the components different from the first to fifth examples will be described.

The gable roof type paper container of the sixth example is assembled by carton blanks having the unfolded structure shown in FIG.
In the sixth example, a fourth rib forming fold line 60 is provided along the bottom lateral fold line 22 on one body panel 4 of the body panel 4 and the bottom panel 24 located on both sides of the bottom lateral fold line 22. the fourth rib forming fold line 61 along the bottom horizontal fold line 23 to one of the body panels 6 of the bottom transverse fold line 23 barrel panel 6 and the bottom panel 25 across the is provided.

Both ends of the fourth rib forming folding lines 60 and 61 are connected to or close to the bottom horizontal folding lines 22 and 23, respectively. Here, the proximity means that when the fourth rib forming folding lines 60, 61 are bent, the fourth rib forming folding lines 60, 61 are reasonably bent along the extended lines to the bottom horizontal folding lines 22, 23. Mean distance. In this example, the fourth rib forming folding lines 60 and 61 are provided in an arc shape whose both ends are connected to the bottom horizontal folding lines 22 and 23, respectively.
A region surrounded by the fourth rib forming fold line 60 and the bottom horizontal fold line 22 becomes the fourth rib forming portion 62, and a region surrounded by the fourth rib forming fold line 61 and the bottom horizontal fold line 23 is the fourth rib forming portion 63. It becomes.

In the assembly of the paper container of the sixth example by the carton blanks having such an unfolded structure, first, a square cylindrical body portion 36 is formed, and a pair of bottom panel 24, 25, the fourth rib forming fold line 60 provided on the body panel 4 and the fourth rib forming fold line 61 provided on the body panel 6 are valley-folded, and the fourth rib forming parts 62, 63 are The fourth ribs 64 and 65 are formed on the bottom lateral folding lines 22 and 23 by bonding to the adjacent inner surface panels 24 and 25. By forming the fourth ribs 64 and 65 in this way, the recess 66 is formed in the bottom 38.
Next, the bottom panels 24 and 25 are sealed to the inner panels 28 and 29 to form the bottom 38, and the top 39 is formed in the same manner as in the first and second examples.

According to the paper container configured as described above, the fourth ribs 64 and 65 formed on the bottom horizontal folding lines 22 and 23 increase the rigidity of the bottom 38, particularly the bottom horizontal folding lines 22 and 23, and the paper container During storage or transportation, a force is applied to the bottom horizontal fold lines 22 and 23, and deformation of the paper container such as the bottom fold lines 22 and 23 in the mountain fold state being recessed and recessed can be prevented.
Moreover, since the recessed part 66 is formed in the bottom part 38 by forming the 4th ribs 64 and 65 on the bottom horizontal folding line 22 and 23, the center part of the bottom part 38 swells with the weight of the contents, and the paper container It is possible to prevent the user from sitting down.
Further, since the fourth ribs 64 and 65 fit within the outer dimensions of the paper container and do not protrude from the body 36, the fourth ribs 64 and 65 do not interfere with the storage and transport of the paper container, and the paper container is stored. There is no risk of disrupting transport.

FIG. 21 is a perspective view showing an example in which the sixth embodiment according to the present invention is implemented in a flat-top type paper container.
Even in this example, the fourth ribs 64 and 65 are formed on the bottom horizontal folding lines 22 and 23 by the same assembly as the gable roof type paper container, and the recesses 66 are formed in the bottom 38 by the fourth ribs 64 and 65. It is formed.

Next, a seventh example of the embodiment of the paper container according to the present invention will be described.
22 and 23 show a seventh example in which the present invention is applied to a gable roof type paper container, FIG. 22 is a developed view showing the carton blanks before assembly processing of this example, and FIG. 23 shows the paper container in this example. It is a bottom part partial longitudinal cross-sectional view.
Regarding the paper container of the seventh example, the same components as those of the first to sixth examples are denoted by the same reference numerals, and the description thereof is omitted. Only the components different from the first to sixth examples will be described.

The gable roof type paper container of the seventh example is assembled by carton blanks having the unfolded structure shown in FIG.
In the seventh example, a fourth rib forming fold line 67 is provided along the bottom lateral fold line 26 on one body panel 5 of the body panel 5 and the inner surface panel 28 located on both sides of the bottom lateral fold line 26, the fourth rib forming fold line 68 along the bottom horizontal fold line 27 to one of the body panel 7 of the bottom transverse fold line 27 barrel panel 7 sandwiching an inner surface panel 29 is provided.

The both ends of the fourth rib forming folding lines 67 and 68 are connected to or close to the bottom horizontal folding lines 26 and 27, respectively. Here, the proximity means that when the fourth rib forming fold lines 67 and 68 are bent, the fourth rib forming fold lines 67 and 68 are easily bent along the extended lines to the bottom lateral fold lines 26 and 27. Mean distance. In this example, the fourth rib forming folding lines 67 and 68 are provided in an arc shape in which both ends thereof are connected to the bottom horizontal folding lines 26 and 27, respectively.
The region surrounded by the fourth rib forming fold line 67 and the bottom horizontal fold line 26 is the fourth rib forming portion 69, and the region surrounded by the fourth rib forming fold line 68 and the bottom horizontal fold line 27 is the fourth rib forming portion 70. It becomes.

In the assembly of the paper container of the seventh example by the carton blanks having such an unfolded structure, first, a square cylindrical body portion 36 is formed, a pair of inner surface panels 28 and 29 are bent, and the body portion panel 5 is provided. The fourth rib forming fold line 67 and the fourth rib forming fold line 68 provided on the body panel 7 are valley-folded, and the fourth rib forming portions 69 and 70 are bonded to the adjacent inner surface panels 28 and 29. The fourth ribs 71 and 72 are formed on the bottom horizontal folding lines 26 and 27. By forming the fourth ribs 71 and 72 in this way, a recess 73 is formed in the bottom 38.
Next, the pair of bottom panels 24 and 25 are folded, and the bottom panels 24 and 25 are sealed to the inner panels 28 and 29 to form the bottom 38, and the top 39 is formed in the same manner as in the first and second examples.

According to the paper container configured as described above, the fourth ribs 71 and 72 formed on the bottom horizontal folding lines 26 and 27 increase the rigidity of the bottom portion 38, particularly the bottom horizontal folding lines 26 and 27, and During storage or transportation, a force is applied to the bottom horizontal fold lines 26, 27, and deformation of the paper container, such as the bottom fold lines 26, 27 in the mountain fold state being recessed into a valley, can be prevented.
In addition, by forming the fourth ribs 71 and 72 on the bottom horizontal folding lines 26 and 27 facing each other, the concave portion 73 is formed in the bottom 38, so that the central portion of the bottom 38 swells due to the weight of the contents, It is possible to prevent the sitting of the paper container from being disturbed.
Further, since the fourth ribs 71 and 72 fit within the outer dimensions of the paper container and do not protrude from the body portion 36, the fourth ribs 71 and 72 do not interfere with the storage and transportation of the paper container, and the paper container is stored. There is no risk of disrupting transport.

In the sixth example, fourth rib forming folding lines 60 and 61 are provided along the bottom horizontal folding lines 22 and 23, and in the seventh example, fourth rib forming lines are formed along the bottom horizontal folding lines 26 and 27. Although the folding lines 67, 68 are provided, the fourth rib forming folding lines 60, 61, 67, 68 may be provided along all the top horizontal folding lines 22, 23, 26, 27, respectively. 24, fourth rib forming folding lines 60a and 60b are provided on both of the body panel 4 and the bottom panel 24 on both sides of the bottom horizontal folding line 22, and the body panels on both sides of the bottom lateral folding line 23 are disposed. 6 and the bottom panel 25 are provided with fourth rib forming fold lines 61a and 61b, and the fourth rib forming fold lines 67a and 67b are provided on both the body panel 5 and the inner panel 28 on both sides of the bottom horizontal fold line 26. The body part on both sides with the bottom horizontal folding line 27 in between The fourth rib forming fold line 68a to both the panel 7 and the inner panel 29, 68b may be provided.
Also, the fourth rib forming folding lines 60 , 61 , 67 , 68 provided along the bottom horizontal folding lines 26 , 27 are both ends of the bottom horizontal folding lines 26 , 27 and the trunk vertical folding lines 1, 2, 3 or the vertical seal lines. You may form in the full length of the bottom part horizontal folding lines 26 and 27 connected to the intersection with the folding line 8. FIG.

Next, an eighth example of the embodiment of the paper container according to the present invention will be described.
FIG. 25 is a developed view showing a carton blank before assembly processing of an eighth example in which the present invention is applied to a gable roof type paper container.
Regarding the paper container of the eighth example, the same components as those of the first to seventh examples are denoted by the same reference numerals, and the description thereof is omitted. Only the components different from the first to seventh examples will be described.

The gable roof type paper container of the eighth example is assembled by carton blanks having the unfolded structure shown in FIG.
The eighth example is a combination of the second example and the seventh example, and the first rib forming folding lines 30 and 31 provided along the body vertical folding lines 1, 2, 3 and the seal vertical folding line 8. , 40 and the second rib forming fold line 41, fourth rib forming fold lines 67 and 68 are provided along the bottom lateral fold lines 26 and 27, respectively.

The assembling of the paper container of the eighth example by the carton blanks having such an unfolded structure forms the body part 36, the bottom part 38, and the top part 39 in the same manner as the second example and the seventh example.
According to the thus configured paper container, the first ribs 34, 35, 44 and the second rib 45 formed on the body vertical folding lines 1, 2, 3 and the seal vertical folding line 8 and the bottom horizontal folding line 26, The fourth ribs 71 and 72 formed on the upper portion 27 increase the rigidity of the body portion 36 and the bottom portion 38, thereby further preventing the paper container from being deformed.
Since the other effects are the same as those of the second and seventh examples, the descriptions of the second and seventh examples are cited and the description thereof is omitted.

Next, a ninth example of the embodiment of the paper container according to the present invention will be described.
FIG. 26 is a developed view showing a carton blank before assembly processing of a ninth example in which the present invention is applied to a gable roof type paper container.
Regarding the paper container of the ninth example, the same components as those of the first to eighth examples are denoted by the same reference numerals, and the description thereof is omitted. Only the components different from the first to eighth examples will be described.

The gable roof type paper container of the ninth example is assembled by carton blanks having the unfolded structure shown in FIG.
The ninth example is a combination of the second example, the fourth example, and the seventh example, and is used for forming the first rib provided along the body vertical fold lines 1, 2, 3 and the seal vertical fold line 8. In addition to the folding lines 30, 31, 40 and the second rib forming folding line 41, the third rib forming folding lines 54, 55 and the bottom lateral folding lines 26, 27 respectively along the top horizontal folding lines 16, 17, respectively . Four rib forming folding lines 67 and 68 are provided.

In the assembly of the paper container of the ninth example by the carton blanks having such a development structure, the body part 36, the bottom part 38, and the top part 39 are formed in the same manner as the second example, the fourth example, and the seventh example.
According to the thus configured paper container, the first ribs 34, 35, 44 and the second rib 45 formed on the body vertical folding lines 1, 2, 3 and the seal vertical folding line 8 and the top horizontal folding line 16, The third ribs 58 and 59 formed on the top 17 and the fourth ribs 71 and 72 formed on the bottom lateral folding lines 26 and 27 increase the rigidity of the entire paper container and more reliably prevent deformation of the paper container. be able to.
Since the other effects are the same as those of the second example, the fourth example, and the seventh example, the description of the second example, the fourth example, and the seventh example is cited, and the description thereof is omitted.

1, 2, 3 Body vertical fold line 4, 5, 6, 7 Body panel 8 Seal vertical fold line 9 Vertical seal panel 10, 11 Top horizontal fold line 12, 13 Outer top seal panels 14, 15 Top panel 16, 17 Top horizontal folding lines 18, 19 Inner top seal panels 20, 21 Side panels 22, 23 Bottom horizontal folding lines 24, 25 Bottom panels 26, 27 Bottom horizontal folding lines 28, 29 Inner panels 30, 31, 40 First rib forming folding lines 32, 33, 42 First rib forming portion 34, 35, 44 First rib 36 Body 37, 46 Recess 38 Bottom 39 Top 41 Second rib forming folding line 43 Second rib forming portion 45 Second rib 47, 48, 54, 55 third rib forming fold line 49,50,56,57 third rib forming portions 51,52,58,59 third rib 53 recesses 60,61,67,68 fourth rib forming fold line 62,63,69, 7 0 4th rib formation part 64,65,71,72 4th rib 66,73 Recessed part

Claims (11)

It consists of a paper material with thermoplastic resin laminated on the front and back surfaces, and has four body panels that are connected to each other through the body vertical folding line, and is connected to the open edge of the body panel through the seal vertical folding line. A rectangular body portion is formed by the vertical seal panel, and a pair of top surface panels facing each other via a top lateral folding line are disposed at the upper end of the body panel between the pair of top surface panels. A pair of side panels facing each other are connected in series, and the pair of top panels and the pair of side panels are folded, sealed, and sealed to form a top, and the bottom of the body panel is placed on the bottom side. A pair of bottom panels facing each other via a fold line and a pair of inner panels facing each other positioned between the pair of bottom panels are connected, and the pair of bottom panels and the pair of inner panels are folded. seal In the paper container bottom is formed by being sealed is,
One or both of the body panel on both sides sandwiching the body vertical fold line is provided with arc-shaped first rib forming fold lines along the body vertical fold line,
A region surrounded by the first rib forming fold line and the body vertical fold line is a first rib forming portion,
A paper container in which the first rib forming portion is bonded to an adjacent panel to form a first rib recessed in an arc shape in a part of the trunk vertical folding line. 2. The paper container according to claim 1 , wherein both ends of the first rib forming fold line are connected to or close to the body vertical fold line. 3. It consists of a paper material with thermoplastic resin laminated on the front and back surfaces, and has four body panels that are connected to each other through the body vertical folding line, and is connected to the open edge of the body panel through the seal vertical folding line. A rectangular body portion is formed by the vertical seal panel, and a pair of top surface panels facing each other via a top lateral folding line are disposed at the upper end of the body panel between the pair of top surface panels. A pair of side panels facing each other are connected in series, and the pair of top panels and the pair of side panels are folded, sealed, and sealed to form a top, and the bottom of the body panel is placed on the bottom side. A pair of bottom panels facing each other via a fold line and a pair of inner panels facing each other positioned between the pair of bottom panels are connected, and the pair of bottom panels and the pair of inner panels are folded. seal In the paper container bottom is formed by being sealed is,
One or both of the body panel and the longitudinal seal panel located on both sides of the seal vertical fold line are provided with arc-shaped second rib forming fold lines along the seal vertical fold line,
A region surrounded by the second rib forming fold line and the seal vertical fold line is a second rib forming portion,
The paper container, wherein the second rib forming portion is bonded to an adjacent panel to form a second rib recessed in an arc shape in a part on the seal vertical folding line . The paper container according to claim 1,
One or both of the body panel and the longitudinal seal panel located on both sides of the seal vertical fold line are provided with arc-shaped second rib forming fold lines along the seal vertical fold line,
A region surrounded by the second rib forming fold line and the seal vertical fold line is a second rib forming portion,
The paper container, wherein the second rib forming portion is bonded to an adjacent panel to form a second rib recessed in an arc shape in a part on the seal vertical folding line. The second rib forming fold line, the paper container according to claim 3 or 4, characterized in that both ends are connected before Symbol sealing longitudinal fold line or close. It consists of a paper material with thermoplastic resin laminated on the front and back surfaces, and has four body panels that are connected to each other through the body vertical folding line, and is connected to the open edge of the body panel through the seal vertical folding line. A rectangular body portion is formed by the vertical seal panel, and a pair of top surface panels facing each other via a top lateral folding line are disposed at the upper end of the body panel between the pair of top surface panels. A pair of side panels facing each other are connected in series, and the pair of top panels and the pair of side panels are folded, sealed, and sealed to form a top, and the bottom of the body panel is placed on the bottom side. A pair of bottom panels facing each other via a fold line and a pair of inner panels facing each other positioned between the pair of bottom panels are connected, and the pair of bottom panels and the pair of inner panels are folded. seal In the paper container bottom is formed by being sealed is,
One or both of the trunk panel and the pair of top panel located on both sides of the top horizontal fold line and / or the trunk panel and the pair of pair located on both sides of the top lateral fold line One or both of the side panels are provided with arc-shaped third rib forming fold lines along the top horizontal fold lines,
A region surrounded by the third rib forming fold line and the top horizontal fold line is a third rib forming portion,
A paper container, wherein the third rib forming portion is bonded to a panel adjacent to the third rib forming portion to form a third rib recessed in an arc shape on the top horizontal folding line . The paper container according to any one of claims 1 to 5 ,
One or both of the trunk panel and the pair of top panel located on both sides of the top horizontal fold line and / or the trunk panel and the pair of pair located on both sides of the top lateral fold line One or both of the side panels are provided with arc-shaped third rib forming fold lines along the top horizontal fold lines,
A region surrounded by the third rib forming fold line and the top horizontal fold line is a third rib forming portion,
The paper container, wherein the third rib forming portion is bonded to an adjacent panel to form a third rib recessed in an arc shape on the top horizontal folding line . The paper container according to claim 6 or 7 , wherein both ends of the third rib forming folding line are connected to or close to the top horizontal folding line. It consists of a paper material with thermoplastic resin laminated on the front and back surfaces, and has four body panels that are connected to each other through the body vertical folding line, and is connected to the open edge of the body panel through the seal vertical folding line. A rectangular body portion is formed by the vertical seal panel, and a pair of top surface panels facing each other via a top lateral folding line are disposed at the upper end of the body panel between the pair of top surface panels. A pair of side panels facing each other are connected in series, and the pair of top panels and the pair of side panels are folded, sealed, and sealed to form a top, and the bottom of the body panel is placed on the bottom side. A pair of bottom panels facing each other via a fold line and a pair of inner panels facing each other positioned between the pair of bottom panels are connected, and the pair of bottom panels and the pair of inner panels are folded. seal In the paper container bottom is formed by being sealed is,
The body panel and the pair of inner surfaces located on one or both of the body panel and the pair of bottom panels located on both sides of the bottom lateral fold line and / or the sides of the bottom lateral fold line. One or both of the panels are provided with arc-shaped fourth rib forming fold lines along the bottom horizontal fold lines,
A region surrounded by the fourth rib forming fold line and the bottom horizontal fold line is a fourth rib forming portion,
The paper container, wherein the fourth rib forming portion is bonded to an adjacent panel to form a fourth rib recessed in an arc shape on the bottom horizontal folding line . The paper container according to any one of claims 1 to 8 ,
The body panel and the pair of inner surfaces located on one or both of the body panel and the pair of bottom panels located on both sides of the bottom lateral fold line and / or the sides of the bottom lateral fold line. One or both of the panels are provided with arc-shaped fourth rib forming fold lines along the bottom horizontal fold lines,
A region surrounded by the fourth rib forming fold line and the bottom horizontal fold line is a fourth rib forming portion,
The paper container, wherein the fourth rib forming portion is bonded to an adjacent panel to form a fourth rib recessed in an arc shape on the bottom horizontal folding line . 11. The paper container according to claim 9, wherein both ends of the fourth rib forming folding line are connected to or close to the bottom horizontal folding line.

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