JP2015157638A - Package and manufacturing method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a package capable of inhibiting deflection from occurring in portions of a bag body which close cylindrical ends of a sleeve, and to provide a manufacturing method of the package.SOLUTION: A package 10 includes: a cylindrical sleeve 30 having two cylindrical ends 31; and a bag body 20 positioned at the inner side of the sleeve 30 and including two flap parts 21 positioned at the outer side of each cylindrical end 31, the bag body 20 in which each of the two flap parts 21 is folded to an outer peripheral surface of the sleeve 30 and bonded to the outer peripheral surface at each cylindrical end 31.

Description

  The technology of the present disclosure relates to a package for packaging an object to be packaged, and a method for manufacturing the package.

  As a package for packaging an article to be packaged, a package including a resin bag and a cylindrical paper or resin sleeve is known. The sleeve is accommodated inside the bag body and has a function of holding the shape of the bag body in a predetermined shape. In the bag body, for example, a flap portion that protrudes from the lower cylinder end of the sleeve is heat-welded to a portion of the bag body that closes the lower cylinder end in a state of being bent inward from the lower cylinder end. (For example, refer to Patent Document 1).

JP 2001-322187 A

  By the way, when a flap part is bend | folded inside a lower cylinder end, a bending may arise in the part which plugs a lower cylinder end in a bag. When such bending occurs, for example, when the bottom of the packaging body is placed on the placement surface, the position of the packaging body is not easily kept stable, and thus the packaging body tends to collapse. In addition, in the structure by which the flap part which protrudes from an upper cylinder end is bent, the bending mentioned above may arise in the part which plugs up an upper cylinder end in a bag. When such bending occurs, for example, when another packaging body is placed on the packaging body, the position of the other packaging body is hardly maintained stably.

  An object of the technology of the present disclosure is to provide a packaging body capable of suppressing the occurrence of bending at a portion of the bag body that closes the cylindrical end of the sleeve, and a method for manufacturing the packaging body.

  One aspect of the packaging body according to the technology of the present disclosure is a sleeve having a cylindrical shape having a first cylinder end and a second cylinder end, located inside the sleeve, and outside the first cylinder end. Each of the two flap portions is folded toward the outer peripheral surface of the sleeve at the first tube end and bonded to the outer peripheral surface.

  In one aspect of the method for manufacturing a package in the technology of the present disclosure, the bag is disposed in a sleeve having a cylindrical shape having a step of forming a bag and a first cylinder end and a second cylinder end, And the process of arrange | positioning two flap parts on the outer side of the said 1st cylinder end, Each of the said 2 flap parts is turned back toward the outer peripheral surface of the said sleeve in the said 1st cylinder end, and is adhere | attached on the said outer peripheral surface A process.

  According to one aspect of the technology of the present disclosure, since the flap portion is folded back from the first tube end of the sleeve toward the outer peripheral surface of the sleeve, the portion that closes the first tube end in the bag body is from the inside of the sleeve. It is pulled toward the outer peripheral surface of the sleeve. As a result, the portion of the bag that closes the first tube end is less likely to be bent.

  In another aspect of the packaging body in the technology of the present disclosure, the two flap portions are two first flap portions, and the bag body includes two second flap portions positioned outside the second cylinder end. Preferably, each of the two second flap portions is folded back toward the outer peripheral surface of the sleeve at the second cylinder end and bonded to the outer peripheral surface.

  According to another aspect of the packaging body in the technology of the present disclosure, since the flap portion is folded back from the second cylinder end of the sleeve toward the outer peripheral surface of the sleeve, the portion that closes the second cylinder end in the bag body is Pulled from the inside of the sleeve toward the outer peripheral surface of the sleeve. As a result, the portion of the bag that closes the second cylinder end is less likely to be bent.

In another aspect of the packaging body in the technology of the present disclosure, it is preferable that the bag body further includes an opening portion in which a cut is formed along an opening direction that is one direction.
According to the other aspect of the package in the technique of the present disclosure, the bag is easily opened.

  In another aspect of the packaging body according to the technology of the present disclosure, it is preferable that the bag body further includes an opening assisting portion that extends along the opening direction and has a mechanical strength lower than that of the other portion of the bag body. .

According to another aspect of the packaging body in the technology of the present disclosure, the bag body is opened along the opening assisting portion, so that the bag body is further easily opened.
In another aspect of the packaging body according to the technology of the present disclosure, the bag body includes at least one resin sheet, and a plurality of sealing portions that are portions where edges of the resin sheet are bonded to each other And a crimping part that is a part where the one resin sheet is folded and bonded, and the opening part is preferably the crimping part.

According to the other aspect of the package in the technology of the present disclosure, the degree of freedom of the position of the opening portion is increased as compared with the configuration in which the opening portion is a sealing portion.
In another aspect of the packaging body according to the technology of the present disclosure, the bag body includes at least one resin sheet, and a plurality of sealing portions that are portions where edges of the resin sheet are bonded to each other It is preferable that the opening portion is the sealing portion.

  According to another aspect of the packaging body in the technology of the present disclosure, since the opening portion is a sealing portion, the bag body is a portion different from the sealing portion and has a portion for forming a cut. The structure of the package becomes simple because it is not necessary. Therefore, manufacture of a package becomes easy.

  In another aspect of the package of the present disclosure, the sleeve further includes an opening that exposes the cut to the outside of the sleeve at a position different from the first cylinder end and the second cylinder end. Is preferred.

  According to another aspect of the packaging body in the technology of the present disclosure, since the cut is exposed to the outside of the sleeve, the bag body can be opened in a state where the bag body is surrounded by the sleeve. Therefore, the article to be packaged accommodated in the bag body is kept protected by the sleeve even when the bag body is opened.

  In another aspect of the package according to the technology of the present disclosure, a folded portion that is a concave portion that is recessed toward the second tube end is formed at the first tube end, and the flap portion is folded inside the folded portion. It is preferable that

  According to the other aspect of the packaging body in the technology of the present disclosure, since the flap portion is folded in the folded portion, the portion other than the folded portion in the first cylinder end is, for example, the packaging body on the mounting surface. When placed, it functions as a part that supports the package. Therefore, the packaging body is less likely to fall compared to the configuration in which the flap portion supports the packaging body.

  In another aspect of the package according to the technology of the present disclosure, the first tube end includes a folded portion that protrudes in a direction away from the second tube end, and the flap portion is folded at the folded portion. Preferably it is.

  According to the other aspect of the package in the technology of the present disclosure, the flap portion is folded at the folded portion that is a portion protruding at the first cylinder end, and therefore the flap portion is easily folded.

  In another aspect of the package of the technology of the present disclosure, the opening portion is divided into two parts by the cut, and the sleeve is located at a position different from the first cylinder end and the second cylinder end. An opening that is formed, the opening exposing the cut to the outside of the sleeve, and a lid that covers the opening and connects to at least a part of the edge of the opening, It is preferable that the lid is bonded to one of the divided two parts.

  According to another aspect of the packaging body in the technology of the present disclosure, the bag body is easily broken following the breaking of the sleeve by the opening operation, and therefore the bag body and the sleeve can be opened at the same time. The operation to open the body is simple.

  According to the technology of the present disclosure, it is possible to suppress the occurrence of bending at a portion of the bag body that closes the cylindrical end of the sleeve.

It is a perspective view which shows the perspective structure of the package in 1st Embodiment which actualized the package of this indication. It is a partial side view which shows a part of side structure of the package in 1st Embodiment. It is a perspective view which shows the perspective structure of the sleeve in 1st Embodiment. It is a front view which shows the front structure in the state where the bag body in the 1st Embodiment was crushed. It is process drawing for demonstrating the manufacturing method of the package in 1st Embodiment. It is process drawing for demonstrating the manufacturing method of the package in 1st Embodiment. It is process drawing for demonstrating the manufacturing method of the package in 1st Embodiment. It is process drawing for demonstrating the manufacturing method of the package in 1st Embodiment. It is process drawing for demonstrating the manufacturing method of the package in 1st Embodiment. It is process drawing for demonstrating the manufacturing method of the package in 1st Embodiment. It is process drawing for demonstrating the manufacturing method of the package in 1st Embodiment. It is process drawing for demonstrating the manufacturing method of the package in 1st Embodiment. It is a perspective view which shows the perspective structure of the package in 2nd Embodiment which actualized the package of this indication. It is a top view which shows the upper surface structure of the package body in 2nd Embodiment. It is an effect | action figure for demonstrating the effect | action of the package in 2nd Embodiment. It is a perspective view which shows the perspective structure of the package in 3rd Embodiment which actualized the package of this indication. It is a front view which shows the front structure in the state which the bag body in 3rd Embodiment was crushed. It is process drawing for demonstrating the manufacturing method of the package in 3rd Embodiment. It is process drawing for demonstrating the manufacturing method of the package in 3rd Embodiment. It is a perspective view which shows the perspective structure of the package in the modification of 3rd Embodiment. It is a perspective view which shows the perspective structure of the package in the modification of 3rd Embodiment. It is explanatory drawing for demonstrating the effect | action in the modification of 3rd Embodiment. It is a perspective view which shows the perspective structure of the package in 4th Embodiment which actualized the package of this indication. It is a partial side view which shows a part of side structure of the package in 4th Embodiment. It is a perspective view which shows the perspective structure of the package in 5th Embodiment which actualized the package of this indication. It is a partial side view which shows a part of side structure of the package in 5th Embodiment. It is a perspective view which shows the perspective structure of the package in 6th Embodiment which actualized the package of this indication. It is a front view which shows the front structure of the package in 6th Embodiment. It is an effect | action figure for demonstrating the effect | action of the package in 6th Embodiment. It is an effect | action figure for demonstrating the effect | action of the package in 6th Embodiment. It is process drawing for demonstrating the manufacturing method of the package in 6th Embodiment. It is process drawing for demonstrating the manufacturing method of the package in 6th Embodiment.

[First Embodiment]
With reference to FIGS. 1-12, 1st Embodiment which actualized the package of this indication and the manufacturing method of a package is described. Below, the structure of a package and the manufacturing method of a package are demonstrated in order.

[Composition of package]
The structure of a package is demonstrated with reference to FIGS. In addition, FIG. 4 has shown the bag body of the collapsed state in which the to-be-packaged object is not packaged for the convenience of explaining the structure of a bag body.

  As shown in FIG. 1, the packaging body 10 includes a bag body 20 and a sleeve 30 having a cylindrical shape surrounding the bag body 20. The sleeve 30 has two cylindrical ends 31, and each portion of the bag body 20 extending from each cylindrical end 31 toward the outside of each cylindrical end 31 is a flap portion 21. One of the two tube ends 31 is an example of a first tube end, and the other of the two tube ends is an example of a second tube end. For each of the two tube ends 31, the bag body 20 has two flap portions 21 positioned outside the tube end 31. The outer peripheral surface of the sleeve 30 includes the outer surfaces of the two wall portions 32 that face each other, and the two flap portions 21 for each tube end 31 are folded back at the tube end 31, one for each wall portion 32. They are glued one by one.

  As shown in FIG. 2, the flap portion 21 and the wall portion 32 of the sleeve 30 are bonded to each other at the bonding portion 11 located between the flap portion 21 and the wall portion 32. For example, the bonding portion 11 is a portion indicated by dots for convenience in FIG. 2, and extends to a part of the portion of the flap portion 21 that faces the wall portion 32. Note that the adhesive portion 11 may extend over the entire portion of the flap portion 21 that faces the wall portion 32.

  Each of the flap portions 21 of the bag body 20 is folded at a part of one cylindrical end 31 and is disposed along the outer peripheral surface of the sleeve 30. Each of the flap portions 21 is bonded to the sleeve 30 by the bonding portion 11 formed on the outer peripheral surface of the sleeve 30. Therefore, even if the sleeve 30 and the bag body 20 are not bonded at a portion other than the bonding portion 11, the bag body 20 is less likely to be bent due to the folding of the flap portion 21. Therefore, the flap portion 21 is formed in a state where the bending of the bag body 20 is suppressed. As a result, when the flap portion 21 comes into contact with the surface that supports the package 10, the package 10 is unlikely to fall down.

  Further, if the flap portion 21 is folded at the tube end 31, the flap portion 21 is supported by the edge of the wall portion 32 over substantially the entire edge of the wall portion 32. Such a support structure of the flap portion 21 is generally the same whether only the tip of the flap portion 21 is bonded to the sleeve 30 or the entire flap portion 21 is bonded to the sleeve 30. And even if it is a case where the bag body 20 is easy to deform | transform like the case where many air etc. are contained in the inside of the bag body 20, it can suppress that the part which plugs the cylinder end 31 in the bag body 20 is bent. . On the other hand, for example, in the configuration in which the flap portion 21 is bonded to the inner peripheral surface of the sleeve 30, the portion of the bag body 20 that closes the tube end 31 is easily bent.

  The adhesion part 11 may be comprised by the adhesive agent located between the flap part 21 and the wall part 32, and may be comprised by the part welded to the wall part 32 among the flap parts 21. FIG. Or the adhesion part 11 may be comprised by both the adhesive agent located between the flap part 21 and the wall part 32, and the part welded to the wall part 32 among the flap parts 21. FIG.

  As shown in FIG. 3, the sleeve 30 has, for example, a rectangular cylindrical shape, but may have a polygonal cylindrical shape, an elliptical cylindrical shape, or a cylindrical shape. It may be. The sleeve 30 has higher rigidity than the bag body 20, and is composed of, for example, one paper sheet. The constituent material of the sleeve 30 is, for example, various paperboards. The sleeve 30 includes a pasting portion 30a, and two end portions in one direction of one paper sheet are pasted to each other in the pasting portion 30a. The length of the sleeve 30 in the direction in which the sleeve 30 extends is the distance between the two tube ends 31 and the height H.

  Since the sleeve 30 has a cylindrical shape, for example, the area of the paperboard used for one package 10 is smaller than the package in which the bag 20 is accommodated in the box. Therefore, the cost for manufacturing the package 10 can be reduced.

  As shown in FIG. 4, the bag body 20 is composed of, for example, a single resin sheet, and the constituent material of the resin sheet is, for example, a synthetic resin. The constituent material of the resin sheet is, for example, any one of polyester resin, polyamide resin, polyaramid resin, polyolefin resin, polycarbonate resin, polystyrene resin, polyacetal resin, and fluorine resin. Good. Or the resin-made sheet | seat may be the laminated body on which the some sheet | seat formed with mutually different resin was piled up. The bag body 20 may be composed of a plurality of resin sheets.

  In the bonding portion 11, the resin bag body 20 and the paper sleeve 30 are bonded together at the bonding portion 11. Therefore, compared with the structure in which a part of the resin bag body 20 and another part of the same bag body 20 are bonded, the bonding strength at the bonding portion 11 can be increased. Further, when the flap portion 21 is peeled off from the sleeve 30, a part of the sleeve 30 is torn and adheres to the flap portion 21. Therefore, when the flap part 21 is deliberately peeled off from the sleeve 30, the abnormality of the package 10 becomes easy to understand.

  The bag body 20 in the present embodiment includes a plurality of sealing portions 22 for forming a bag shape. For example, as an example of the bag body 20, as shown in FIG. 4, when the bag body 20 is composed of a single resin sheet, the bag body 20 includes three sealing portions 22. For convenience of explanation, in FIG. 4, dots are attached to each of the three sealing portions 22. The sealing portion 22 includes a cylindrical sealing portion 22a for forming a cylindrical body from a single resin sheet, and two end sealing portions 22b for closing each of the two cylindrical ends of the cylindrical body. Including. Each sealing portion 22 is formed by thermocompression bonding of the edge of the resin sheet with the other edge of the resin sheet. Of the sealing portions 22, the cylindrical sealing portion 22 a may constitute the outer peripheral surface of the bag body 20, or has a belt shape extending from the outer peripheral surface of the bag body 20 toward the outside of the bag body 20. You may have. When the bag body 20 has a flat bag shape, the bag body 20 has a sealing surface 20a that is a surface on which the cylindrical sealing portion 22a is formed, and a flat surface 20b that overlaps the sealing surface 20a.

  The bag body 20 has a sealing length L, which is the length in the sealing direction in which the two end sealing portions 22 b are arranged, larger than the height H of the sleeve 30. The bag body 20 is disposed along the inner peripheral surface of the sleeve 30 and a portion of the two end portions in the sealing direction that protrudes from the sleeve 30 is crushed toward the center in the sealing direction. Thereby, the flap part 21 is formed in each of the four corners of the bag body 20.

  The bag 20 includes, for example, a cut 23 cut out from one end in the sealing direction toward the center of one of the two end sealing portions 22b. In addition, the bag body 20 may have the cut | interruption 23 in both the two edge part sealing parts 22b, and may have the several cut | interruption 23 in one end part sealing part 22b. Or the bag body 20 may have the cut | interruption 23 in the cylinder body sealing part 22a, and if the cut | interruption 23 is located in the cylinder body sealing part 22a, the cut | interruption 23 will be a thing of the cylinder body sealing part 22a. Among these, it is preferable that the sleeve 30 is located at a portion exposed from the tube end 31. Thereby, in the state where the bag body 20 is surrounded by the sleeve 30, the bag body 20 using the cut 23 can be opened. The sealing part 22 is an example of an opening part.

[Manufacturing method of package]
The manufacturing method of the package 10 will be described with reference to FIGS.
As shown in FIG. 5, when the package 10 is formed, first, a cylindrical body 41 having a cylindrical sealing portion 22 a is formed by thermocompression bonding of edges facing each other in one resin sheet. Is formed. And the paperboard 51 shape | molded by the predetermined | prescribed shape, for example, strip | belt shape, is affixed with respect to the cylinder 41. FIG. Note that the cylindrical body 41 may be formed from the resin sheet after the paperboard 51 is attached to the resin sheet.

  As shown in FIG. 6, the end sealing portion 22 b is formed at each of the two cylinder ends of the cylinder 41 to form the bag body 20. In addition, after the edge part sealing part 22b is formed in one of the two cylinder ends of the cylinder 41, the article to be packaged by the package 10 is filled. Then, after the article to be packaged is filled, the other end sealing portion 22b is formed. At this time, each of the four corners of the bag body 20 is formed with one portion to be the flap portion 21 by being folded toward the outer peripheral surface of the sleeve 30 in a later step.

  As shown in FIG. 7, the paperboard 51 is folded along a part of the outer peripheral surface of the bag body 20, and as shown in FIG. 8, the paperboard 51 is further moved along a part of the outer peripheral surface of the bag body 20. It can be bent. At this time, every time the paperboard 51 is folded, a portion of the paperboard 51 that is folded along the outer peripheral surface of the bag body 20 and a part of the bag body 20 may be bonded with an adhesive or the like.

  As shown in FIG. 9, the paperboard 51 is formed in a rectangular cylindrical shape surrounding the bag body 20 over the entire outer peripheral surface of the bag body 20, and two end portions in the circumferential direction of the paperboard 51 are mutually attached by an adhesive, for example. By adhering, the sleeve 30 having the pasting portion 30a is formed. Thereby, the bag body 20 is disposed in the sleeve 30, and the flap portion 21 is disposed outside the tube end 31.

  As shown in FIG. 10, a cut 23 is formed in one end sealing portion 22b. In addition, if it is after the edge part sealing part 22b is formed, the cut | interruption 23 may be formed before the sleeve 30 is formed, and may be formed in the middle of the sleeve 30 being formed. . Since the cut 23 is located at the end sealing portion 22 b, it is not necessary to form a portion different from the sealing portion 22 and for forming the cut 23. Therefore, the structure of the package 10 is simplified and the manufacture of the package 10 is facilitated.

  As shown in FIG. 11, each end sealing portion 22 b of the bag body 20 is crushed toward the center of the bag body 20 in the sealing direction described above, and the length of the bag body 20 in the sealing direction is reduced. , The height H of the sleeve 30 is adjusted. At this time, each of the four flap portions 21 is disposed outside the cylinder end 31 of the sleeve 30 and extends toward the outside of the cylinder end 31.

  As shown in FIG. 12, each of the four flap portions 21 is folded at the wall portion 32 of the sleeve 30. Therefore, the cylinder end 31 of the sleeve 30 functions as a support portion when the flap portion 21 is folded back. Therefore, the bag body 20 is less likely to bend as compared to the case where the flap portion 21 is folded without the support portion of the flap portion 21. Each flap portion 21 is bonded to the outer peripheral surface of the sleeve 30. Thereby, the adhesion part 11 is formed between each flap part 21 and the sleeve 30.

As described above, according to the package of the first embodiment and the method for manufacturing the package, the effects listed below can be obtained.
(1) Each of the flap portions 21 of the bag body 20 is folded at a part of one cylindrical end 31 and arranged along the outer peripheral surface of the sleeve 30. For this reason, the bag body 20 is less likely to bend at the portion closing the cylindrical end 31. Therefore, the flap portion 21 is formed in a state where the bending of the bag body 20 is suppressed.

  (2) Since the flap portion 21 covers a part of the cylindrical end 31 of the sleeve 30, the flap portion 21 bends to a portion that closes the cylindrical end 31 in the bag body 20 as compared with the configuration in which the flap portion 21 adheres to the inner peripheral surface of the sleeve 30. Is unlikely to occur.

  (3) Since the cut 23 is formed in the end sealing part 22b, the bag 20 is a part different from the sealing part 22 and does not have a part for forming the cut 23. Also good. Therefore, the structure of the package body 10 is simplified, and therefore, the manufacture of the package body 10 is facilitated.

(4) Since the area of the paperboard used for one package 10 becomes small as compared with the package in which the bag 20 is accommodated in the box, the cost for manufacturing the package 10 can be reduced. .
(5) Since the resin bag body 20 and the paper sleeve 30 are bonded, it is easy to understand the state in which the flap portion 21 is peeled off from the sleeve 30.

The first embodiment described above can be implemented with appropriate modifications as follows.
-The bag body 20 does not need to have the cut | interruption 23. FIG. Even in such a configuration, the flap portion 21 of the bag body 20 is folded back at the cylindrical end 31 of the sleeve 30, and the flap portion 21 and the sleeve 30 are bonded together at the bonding portion 11 on the outer peripheral surface of the sleeve 30. If it is a structure, the effect according to (1) mentioned above can be acquired at least.

  The bag body 20 only needs to be folded toward the outer peripheral surface of the sleeve 30 at at least one of the two cylindrical ends 31. Even in such a configuration, the flap portion 21 is folded back at the cylindrical end 31 of the sleeve 30 and the flap portion 21 and the sleeve 30 are bonded to each other at the bonding portion 11 on the outer peripheral surface of the sleeve 30. Thus, at least the effect according to (1) can be obtained.

  The sleeve 30 may not be made of paper, and may be made of a synthetic resin having higher rigidity than the bag body 20, for example. Even with this configuration, at least the effect according to (1) can be obtained.

[Second Embodiment]
With reference to FIG. 13 to FIG. 15, a second embodiment in which the package of the present disclosure and the method for manufacturing the package are embodied will be described. The packaging body of 2nd Embodiment mainly differs in the point which has a part which assists opening of the bag body by a cut compared with the packaging body of 1st Embodiment. Therefore, below, such a difference is demonstrated in detail and the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol to the structure equivalent to 1st Embodiment in the package of 2nd Embodiment. Moreover, below, the structure of a package, the effect | action of a package, and the manufacturing method of a package are demonstrated in order.

[Composition of package]
The structure of a package is demonstrated with reference to FIG. 13 and FIG.
As shown in FIG. 13, the bag body 20 has an end sealing portion 22b, and, for example, one cut 23 is located in the end sealing portion 22b. The bag body 20 includes an opening assisting portion 61 that extends along the opening direction of the cut 23. The opening assisting part 61 is, for example, a processing flaw formed by laser processing, and has a mechanical strength lower than that of the other part of the bag body 20.

  As shown in FIG. 14, when the bag 20 is opened from the cut 23, the bag 20 is torn along a straight line passing through the tip 23a of the cut 23 in a direction away from the tip 23a. Therefore, the direction in which the straight line passing through the tip 23a extends is the opening direction of the cut 23, for example, the direction in which the bisector, which is a straight line that bisects the angle formed by the tip 23a, extends. Note that the opening direction of the cut 23 may be a direction intersecting with the bisector of the tip 23a.

  The opening assisting portion 61 is located on the flat surface 20b and extends in the opening direction, and is bent in a direction perpendicular to the opening direction at a portion exposed from the sleeve 30 of the bag body 20. The opening assisting part 61 is further bent in a direction parallel to the opening direction from a direction orthogonal to the opening direction and extends toward the end sealing part 22b. Further, the opening assisting part 61 is located on the sealing surface 20a and is formed along the end sealing part 22b in a direction away from the tip part 23a of the cut 23. A gap is formed between the tip 23a of the cut 23 and the end of the opening assisting portion 61 near the tip 23a.

  Note that a gap may not be formed between the tip 23a of the cut 23 and the end of the opening assisting portion 61. In this case, the end of the opening assisting portion 61 is the end sealing portion. What is necessary is just to be located in 22b.

[Action of packaging]
The operation of the package 10 will be described with reference to FIGS. 13 and 15.
As shown in FIG. 13, when the bag body 20 is opened, the user of the package body 10, for example, places one of the portions sandwiching the cut 23 in the end sealing portion 22 b where the cut 23 is positioned. Pick with your finger and the other with your left hand. And a user tears the bag body 20 from the front-end | tip part 23a of the cut | interruption 23 by twisting one wrist in the state which pinched the edge part sealing part 22b. Thereby, the tearing part formed from the front-end | tip part 23a of the cut | interruption 23 is connected with the opening assistance part 61. FIG. Since the mechanical strength of the opening assisting portion 61 is lower than that of the other portions of the bag body 20, the bag body 20 is torn along the opening assisting portion 61 after the tearing portion and the opening assisting portion 61 are connected. .

  As shown in FIG. 15, when the bag body 20 is torn along the opening assisting portion 61, a bag body opening portion 62 that exposes the inside of the bag body 20 to the outside of the bag body 20 is formed in the bag body 20. Is done. A part of the bag body 20 that is surrounded by the opening assisting portion 61 in the bag body 20 before opening is separated from the bag body 20 as an opening piece 63. Therefore, compared with the structure in which the bag body 20 is provided with only the cut | interruption 23, the bag body 20 becomes easy to open.

[Manufacturing method of package]
The step of forming the opening assisting portion 61 is the step shown in FIG. 10 and may be performed after the step of forming the cut 23 or simultaneously with the step of forming the cut 23. Also good. Alternatively, the step of forming the opening assisting portion 61 may be performed before the step of forming the cut 23, and is performed before the step of forming the sleeve 30 shown in FIGS. Alternatively, it may be performed while the sleeve 30 is formed. Or the process in which the opening assistance part 61 is formed is a process which FIG. 6 shows, Comprising: You may perform before the process in which the edge part sealing part 22b is formed.

As described above, according to the package of the second embodiment and the method for manufacturing the package, the following effects can be obtained in addition to the effects according to (1) to (5) described above. .
(6) Compared with the configuration in which the bag body 20 includes only the cut line 23, the bag body 20 is easily opened by the amount provided with the opening assisting portion 61.

Note that the second embodiment described above can be implemented with appropriate modifications as follows.
-The opening assistance part 61 should just be formed along the opening direction at least, and even if it is such a structure, the effect according to (6) mentioned above can be acquired at least.

  -The opening assistance part 61 may be formed only in the flat surface 20b, and may be formed only in the sealing surface 20a. Even with such a configuration, at least the effect according to (6) described above can be obtained.

  -The opening assistance part 61 may not be formed only in the flat surface 20b and the sealing surface 20a, but may be formed in the edge part sealing part 22b in which the cut | interruption 23 was formed in addition to these surfaces. For example, the opening assisting portion 61 may be formed on the flat surface 20b and the end sealing portion 22b, or may be formed on the sealing surface 20a and the end sealing portion 22b.

  -As long as the opening assistance part 61 is the structure formed in the flat surface 20b and the sealing surface 20a among the bag bodies 20, the following structures may be sufficient. That is, when the bag body 20 has a flat bag shape, the opening assisting portion 61 formed on the flat surface 20b and the opening assisting portion 61 formed on the sealing surface 20a include the sealing surface 20a and the flat surface 20b. The positions may overlap with each other in the direction in which they face each other. According to such a configuration, the following effects can be obtained.

  (7) The opening assisting portion 61 of the sealing surface 20a and the opening assisting portion 61 of the flat surface 20b are substantially equal in distance from the cut 23. For this reason, the force for opening the flat surface 20b from the cut 23 and the force for opening the sealing surface 20a from the cut 23 are less likely to vary. Therefore, the bag body 20 is easily opened by the cut 23 and the opening assisting portion 61.

  When the opening assisting portion 61 is formed on both the flat surface 20b and the sealing surface 20a, the opening assisting portion formed on the flat surface 20b and the opening assisting portion formed on the sealing surface 20a are: The positions may not overlap each other in the direction in which the sealing surface 20a and the flat surface 20b face each other.

  -The opening assistance part 61 does not need to be formed by laser processing, and the point should just be a part whose mechanical strength is weaker than the other part of the bag 20. Even with such a configuration, at least the effect according to (6) described above can be obtained.

[Third Embodiment]
With reference to FIGS. 16 to 19, a third embodiment in which the package of the present disclosure and the method for manufacturing the package are embodied will be described. The packaging body of 3rd Embodiment mainly differs in the site | part in which the cut | interruption is formed in a bag body compared with the packaging body of 1st Embodiment. Therefore, in the following, such differences will be described in detail, and in the packaging body of the third embodiment, the same components as those in the first embodiment will be denoted by the same reference numerals, and detailed description thereof will be omitted. Moreover, below, the structure of a package, the effect | action of a package, and the manufacturing method of a package are demonstrated in order.

[Composition of package]
The configuration of the package will be described with reference to FIGS. 16 and 17. In addition, FIG. 17 has shown the bag body of the crushed state in which the to-be packaged object is not packaged for the convenience of describing the structure of a bag body.

  As shown in FIG. 16, the sleeve 30 includes an opening 71 that exposes a part of the bag body 20 to the outside of the sleeve 30 at a position different from the two cylindrical ends 31. On the other hand, the bag body 20 includes a crimping portion 72, and the crimping portion 72 is a portion of the bag body 20 that is different from the sealing portion 22 described above, and one resin sheet is folded over. It is a portion that has been crimped. The crimping part 72 has a band shape extending from the outer peripheral surface of the bag body 20 toward the outside of the bag body 20. In the crimping portion 72, a cut 73 is located at a portion exposed to the outside of the sleeve 30 through the opening 71 of the sleeve 30.

  As FIG. 17 shows, the crimping | compression-bonding part 72 is formed in the flat surface 20b of the bag body 20, for example, is formed over the whole sealing direction in the flat surface 20b, and the crimping | compression-bonding part 72 is assembled. Is formed in a portion overlapping the opening 71 of the sleeve 30. The crimping part 72 has a strip shape extending along the sealing direction. In FIG. 17, dots are attached to the end sealing portion 22b for convenience of showing the positional relationship between the end sealing portion 22b and the cylindrical body sealing portion 22a.

Note that the crimping portion 72 may be formed on the sealing surface 20 a of the bag body 20. Moreover, the crimping | compression-bonding part 72 may have a strip | belt shape extended along the direction which cross | intersects the sealing direction.
In the crimping portion 72, for example, one cut 73 cut out from the outer edge away from the bag body 20 toward the outer peripheral surface of the bag body 20 in the crimping portion 72 is located. The distal end portion 73 a of the cut 73 is located near the outer peripheral surface of the bag body 20 on the outer edge of the crimping portion 72. The cut 73 is formed at a position that overlaps the opening 71 of the sleeve 30 when the package 10 is assembled. Two or more cuts 73 may be formed in the crimping part 72.

Since the cut 73 is located in the crimping part 72 formed in the bag body 20, the degree of freedom of the position of the cut 73 is increased as compared with the configuration in which the cut is located in the sealing part 22.
[Action of packaging]
The operation of the package 10 will be described with reference to FIG.

  As shown in FIG. 16, when the bag 20 is opened, the user of the package 10 picks, for example, one of the parts sandwiching the cut 73 with the finger of the right hand of the crimping portion 72 where the cut 73 is located. , Pick the other with your left finger. And a user tears the bag body 20 from the front-end | tip part 73a of the cut 73 by twisting one wrist in the state which pinched the crimping | compression-bonding part 72. FIG. Thereby, even if the bag body 20 is opened, the bag body 20 is kept in a state surrounded by the sleeve 30. Therefore, the article to be packaged accommodated in the bag body 20 is kept protected by the sleeve 30 even when the bag body is opened.

[Manufacturing method of package]
The manufacturing method of a package is demonstrated with reference to FIG. 18 and FIG. 18 is a process prior to the manufacturing process shown in FIG. 5, and the manufacturing process shown in FIG. 19 corresponds to the manufacturing process shown in FIG.

  As shown in FIG. 18, when the package 10 is formed, first, a part of one resin sheet 81 and another part of the same resin sheet 81 are thermocompression-bonded, so that a crimping part is formed. 72 is formed. A cut 73 is formed in a part of the crimping portion 72.

  Here, when the cylindrical body sealing portion 22a is formed, since the thermocompression bonding is performed under the condition that the sealing performance of the bag body 20 is reliably obtained, the resin sheet is formed when the cylindrical body sealing portion 22a is formed. The pressure applied to 81 and the temperature of the resin sheet 81 are set high enough to obtain sealing performance. For this reason, the cylindrical body sealing portion 22a may be kinked. Therefore, in the structure in which the cut is formed in the cylindrical body sealing portion 22a, when the cut is formed, if the cut is formed, the cut width is smaller than the setting or the cut length is set. In some cases, a cut having a length smaller than the setting may be formed. Thereby, it becomes difficult for the bag 20 to be torn from the cut.

  On the other hand, since the crimping part 72 is not involved in the sealing performance of the bag body 20, the pressure applied to the resin sheet 81 when the crimping part 72 is formed, and the temperature of the resin sheet 81 are: What is necessary is just to set to such an extent that the crimp part 72 can be formed. That is, both the pressure applied to the resin sheet 81 and the temperature of the resin sheet 81 can be set lower than when the cylindrical sealing portion 22a is formed. Therefore, the conditions for forming the crimping part 72 can be set so that the crimping part 72 is less likely to be distorted. Therefore, the crimping portion 72 is easily formed with a cut 73 having a size substantially equal to the notch width and length. As a result, the bag body 20 using the cut 73 is easily torn.

  In addition, since the crimping part 72 is not involved in the adhesion of the bag body 20, the length of the crimping part 72 along the sealing direction and the width of the crimping part 72 along the direction orthogonal to the sealing direction. The degree of freedom of each increases.

  As shown in FIG. 19, in the resin sheet 81, two end portions in a direction orthogonal to the direction in which the crimping portion 72 extends are thermocompression bonded to each other to form a tubular body 82 having a tubular sealing portion 22a. The Then, the paperboard 83 having the opening 71 is attached to a portion where the crimping portion 72 and the cut 73 in the cylindrical body 82 are exposed from the opening 71. Note that the cylindrical body 82 may be formed from the resin sheet 81 after the paperboard 83 is attached to the resin sheet 81 in which the crimping portion 72 and the cut 73 are formed.

After the process shown in FIG. 19 is performed, the package 10 is manufactured by performing the same process as that of the first embodiment described above.
As described above, according to the package of the third embodiment and the method for manufacturing the package, in addition to the effects according to (1), (2), (4), and (5) described above, Thus, the effects listed below can be obtained.

  (8) Even when the bag body 20 is opened, the bag body 20 is kept in a state surrounded by the sleeve 30. Therefore, the article to be packaged accommodated in the bag body 20 is kept protected by the sleeve 30 even when the bag body 20 is opened.

(9) Since the cut 73 is located in the crimping part 72 formed in the bag body 20, the degree of freedom of the position of the cut 73 is increased as compared with the configuration in which the cut is located in the sealing part 22.
(10) Since the conditions when the crimping part 72 is formed can be a condition in which the crimping part 72 does not easily occur, the notch width and length are almost set in the crimping part 72. It becomes easy to form the cut 73 having the same size. As a result, the bag body 20 using the cut 73 is easily torn.

(11) Since the crimping part 72 is not involved in the adhesion of the bag body 20, the degree of freedom of the length and width of the crimping part 72 is increased.
Note that the third embodiment described above can be implemented with appropriate modifications as follows.

  The bag body 20 does not need to include the crimping part 72 and the cut 73 formed in the crimping part 72. In such a configuration, as shown in FIG. 20, it is only necessary that the cut 91 be located in a portion of the cylindrical body sealing portion 22 a exposed from the opening 71 of the sleeve 30. Even with such a configuration, it is possible to obtain at least the effect according to the above (8).

  -The package 10 of 3rd Embodiment can also be implemented in combination with the structure of the package 10 of 2nd Embodiment. That is, as shown in FIG. 21, the bag body 20 includes an opening assisting portion 92 on the flat surface 20b, and the opening assisting portion 92 is, for example, a processing flaw formed by laser processing. On the flat surface 20b, the opening assisting portion 92 is bent at the tip that extends along the opening direction, which is the direction in which the bisector of the tip end portion 73a extends, and one cylindrical end of the sleeve 30 along the sealing direction. It extends toward the opening cylinder end 31a which is 31. Further, the opening assisting portion 92 extends along the sealing direction from the distal end portion 73a at the portion between the wall portion 32 and the crimping portion 72 near the crimping portion 72 of the two wall portions 32 on the flat surface 20b. And extends toward the opening cylinder end 31a.

  When the bag body 20 is opened, the user of the package body 10 sandwiches one of the crimping portions 72 that sandwich the cut 73 with the finger of the right hand and the other hand with the finger of the left hand. And a user tears the bag body 20 from the front-end | tip part 73a of the cut 73 by twisting one wrist in the state which pinched the crimping | compression-bonding part 72. FIG. Thereby, the tearing part formed from the front-end | tip part 73a of the cut 73 is connected with the opening assistance part 92. FIG.

  As shown in FIG. 22, when the bag body 20 is torn along the opening assisting portion 92, a bag body opening portion 93 that exposes the inside of the bag body 20 to the outside of the bag body 20 is formed in the bag body 20. Is done. A part of the bag body 20 that is surrounded by the opening assisting portion 92 in the bag body 20 before opening is connected to a part in the circumferential direction of the bag body opening portion 93 as an opening piece 94.

In such a package 10, the opening assisting part 92 is formed on the resin sheet 81 as in the case of the crimping part 72 and the cut 73 as shown in FIG.
Here, the opening assistance part 92 is normally formed with respect to the resin-made sheet | seats 81 before the cylinder sealing part 22a is formed. Therefore, in the configuration in which the cut is located in the cylinder sealing part 22a, when the cylinder sealing part 22a is formed in the resin sheet 81, the opening assist is previously provided at a position where the cut of the cylinder sealing part 22a is sandwiched. A portion 92 is formed. Therefore, when the cylindrical body sealing portion 22a is formed, the position of the opening assisting portion 92 located on the opposite side of the cylindrical body sealing portion 22a is the direction in which the cylindrical body sealing portion 22a extends. In some cases, the directions may be shifted in the orthogonal direction. As a result, the tearing portion formed from the front end portion of the cut and the opening assisting portion 92 are not easily connected, and the bag body 20 is not easily opened.

  In contrast, in the configuration in which the packaging body 10 of the third embodiment and the packaging body 10 of the second embodiment are combined, the positions of the crimping part 72, the cut 73, and the opening assisting part 92 are determined. Thus, the resin sheet 81 is formed. Therefore, when the bag body 20 is opened, the tearing portion formed from the tip 73 a of the cut 73 is connected to the opening assisting portion 92. Therefore, the bag body 20 is easily opened.

  -The crimping | compression-bonding part 72 may be formed not only in the flat surface 20b of the bag body 20, but in the sealing surface 20a. Even in such a configuration, as long as the cut 73 formed in the crimping portion 72 is exposed to the outside of the sleeve 30 from the opening 71 of the sleeve 30, the effect according to the above (8) can be obtained. .

[Fourth Embodiment]
With reference to FIG. 23 and FIG. 24, 4th Embodiment which actualized the package of this indication is described. The package of the fourth embodiment is mainly different from the package of the first embodiment in the shape of the sleeve. Therefore, in the following, such differences will be described in detail, and in the package of the fourth embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[Composition of package]
The structure of a package is demonstrated with reference to FIG. 23 and FIG.
As shown in FIG. 23, the sleeve 30 has two cylindrical ends 31. Each cylinder end 31 includes an overlapping portion 31 b that is a portion that overlaps the flap portion 21 of the bag body 20, and a non-overlapping portion 31 c that is a portion that does not overlap the flap portion 21. Of each cylindrical end 31, the overlapping portion 31b is formed with a folded portion that is a concave portion that is recessed toward the other cylindrical end 31 with respect to the non-overlapping portion 31c. Each tube end 31 has a step formed by the overlapping portion 31b and the non-overlapping portion 31c.

  As shown in FIG. 24, the folded portion formed in the overlapping portion 31 b has an arc shape that is recessed toward the other cylinder end 31. In the overlapping portion 31 b, the overlapping width W <b> 1 that is the length between the two top portions 31 d that are the portions farthest from the other cylinder end 31 is larger than the flap width W <b> 2 that is the width of the flap portion 21. Therefore, when the wall portion 32 of the sleeve 30 and the flap portion 21 are bonded, the flap portion 21 overlaps a portion other than the top portion 31d of the overlapping portion 31b, and the flap portion 21 is folded back in the folded portion. Therefore, when the tube end 31 is placed on the placement surface on which the package 10 is placed, each top portion 31 d of the tube end 31 comes into contact with the placement surface of the package 10. As a result, the packaging body 10 is less likely to fall than the configuration in which the flap portion 21 of the bag body 20 contacts the placement surface.

As described above, according to the package of the fourth embodiment, in addition to the effects according to (1) to (5) described above, the following effects can be obtained.
(12) The flap portion 21 overlaps a portion other than the top portion 31d in the overlapping portion 31b. Therefore, when the tube end 31 is placed on the placement surface, each top portion 31d of the tube end 31 contacts the placement surface. Therefore, the packaging body 10 is less likely to fall than the configuration in which the flap portion 21 of the bag body 20 contacts the placement surface.

Note that the above-described fourth embodiment can be implemented with appropriate modifications as follows.
-Of each tube end 31, only one of the overlapping portions 31b may form a step with the non-overlapping portion 31c. Even in such a configuration, the flap portion 21 overlaps with the portion other than the top portion 31d in one of the overlapping portions 31b, so that it is possible to obtain the effect equivalent to the above-described (12).

  -The superimposition part 31b does not need to have circular arc shape. For example, the overlapping portion 31 b may have a triangular wave shape that is recessed toward the other tube end 31, or may have a rectangular wave shape that is recessed toward the other tube end 31. In short, it is only necessary that the tube end 31 is a recess that is recessed toward the other tube end 31 and has a folded portion that can accommodate the flap portion 21. Even with such a configuration, it is possible to obtain the effect according to the above-described (12).

-The bag body 20 does not need to have the cut | interruption 23. FIG. Even with such a configuration, it is possible to obtain the effect according to the above-described (12).
-The package 10 of 4th Embodiment can also be implemented in combination with the structure of the package 10 of 2nd Embodiment. That is, the bag body 20 may have an opening assisting part. If it is such a structure, the effect according to (6) mentioned above can also be acquired.

  -The package 10 of 4th Embodiment can also be implemented in combination with the structure of the package 10 of 3rd Embodiment. That is, the bag body 20 may include a crimping portion and a cut located in the crimping portion, and the sleeve 30 may have an opening. If it is such a structure, the effect according to (8) to (11) mentioned above can also be acquired.

  -The package 10 of 4th Embodiment can also be implemented in combination with the structure of the package 10 of 2nd Embodiment, and the structure of the package 10 of 3rd Embodiment. That is, the bag body 20 may include a crimping portion, a break located in the crimping portion, and an opening assisting portion, and the sleeve 30 may include an opening. If it is such a structure, the effect according to (6), (8) to (11) mentioned above can also be acquired.

[Fifth Embodiment]
With reference to FIG. 25 and FIG. 26, 5th Embodiment which actualized the package of this indication is described. The package of the fifth embodiment is mainly different from the package of the fourth embodiment in the shape of the sleeve. Therefore, in the following, such differences will be described in detail, and in the package of the fifth embodiment, the same reference numerals are given to the same components as those in the fourth embodiment, and detailed description thereof will be omitted.

[Composition of package]
With reference to FIG. 25 and FIG. 26, the structure of a package is demonstrated.
As shown in FIG. 25, the sleeve 30 has two cylindrical ends 31. Each cylinder end 31 includes an overlapping portion 31 e that is a portion that overlaps the flap portion 21 of the bag body 20 and a non-overlapping portion 31 c that is a portion that does not overlap the flap portion 21. Of each tube end 31, the overlapping portion 31e is formed with a folded portion protruding in a direction away from the other tube end 31 with respect to the non-overlapping portion 31c. Each tube end 31 has a step formed by the overlapping portion 31e and the non-overlapping portion 31c.

  As shown in FIG. 26, the folded portion formed in the overlapping portion 31 e has an arc shape protruding in a direction away from the other tube end 31. A part of the bent portion 21a that is a portion bent toward the cylindrical end 31 that is not in contact with the flap portion 21 in the flap portion 21 is a portion farthest from the other cylindrical end 31 in the overlapping portion 31e. It hits a certain top 31f. Of the bent portion 21 a, two corner portions 21 b that are two end portions in a direction orthogonal to the direction in which the flap portion 21 extends protrudes outside the sleeve 30.

  Therefore, the flap portion 21 bends along the outer peripheral surface of the sleeve 30 while abutting against the top portion 31f that is a portion protruding from the overlapping portion 31e. Thereby, the flap part 21 becomes easy to bend. Furthermore, since the flap part 21 is bonded to the sleeve 30 in a state where the flap part 21 is in contact with the top part 31f, the bent part 21a of the flap part 21 is pulled toward the top part 31f with the top part 31f as a fulcrum. It becomes a state. Therefore, even if the two corners 21b protrude outside the sleeve 30, the shape of each corner 21b is easily maintained in the shape formed by the three surfaces orthogonal to each other. Therefore, even if the corner portion 21b of the flap portion 21 is in contact with the surface that supports the packaging body 10, the packaging body 10 is unlikely to fall down.

As described above, according to the package of the fifth embodiment, in addition to the effects according to (1) to (5) described above, the following effects can be obtained.
(13) The flap portion 21 bends along the outer peripheral surface of the sleeve 30 while striking the top portion 31 f that is a portion protruding from the cylindrical end 31. Therefore, the flap part 21 becomes easy to bend.

The fifth embodiment described above can also be implemented with appropriate modifications as follows.
-Of each tube end 31, only one of the overlapping portions 31e may form a step with the non-overlapping portion 31c. Even in such a configuration, the flap portion 21 abuts on the top portion 31f in the one overlapping portion 31e, so that it is possible to obtain an effect equivalent to the above-described (13).

  -The superimposition part 31e does not need to have circular arc shape. The superimposing portion 31e may have, for example, a triangular wave shape protruding in a direction away from the other tube end 31, or a rectangular wave shape protruding in a direction away from the other tube end 31. In short, it is only necessary that the tube end 31 has a step. Even with such a configuration, it is possible to obtain the effect according to the above-described (13).

-The bag body 20 does not need to have the cut | interruption 23. FIG. Even with such a configuration, it is possible to obtain the effect according to the above-described (13).
-The package 10 of 5th Embodiment can also be implemented in combination with the structure of the package 10 of 2nd Embodiment. That is, the bag body 20 may have an opening assisting part. If it is such a structure, the effect according to (6) mentioned above can also be acquired.

  -The package 10 of 5th Embodiment can also be implemented in combination with the structure of the package 10 of 3rd Embodiment. That is, the bag body 20 may include a crimping portion and a cut located in the crimping portion, and the sleeve 30 may have an opening. If it is such a structure, the effect according to (8) to (11) mentioned above can also be acquired.

  -The package 10 of 5th Embodiment can also be implemented in combination with the structure of the package 10 of 2nd Embodiment, and the structure of the package 10 of 3rd Embodiment. That is, the bag body 20 may include a crimping portion, a break located in the crimping portion, and an opening assisting portion, and the sleeve 30 may include an opening. If it is such a structure, the effect according to (6), (8) to (11) mentioned above can also be acquired.

  -The package 10 of 5th Embodiment can also be implemented in combination with the structure of the package 10 of 4th Embodiment. That is, the tube end 31 is a recess that is recessed toward the other tube end 31, has a folded portion that can accommodate the flap portion 21, and the bottom of the folded portion is the other tube end. The structure which has the part protruded toward the direction away from 31 may be sufficient. With such a configuration, the effects according to the above (12) and (13) can be obtained.

  When the two cylinder ends 31 are constituted by the first cylinder end and the second cylinder end, the overlapping portion 31b of the first cylinder end has a shape protruding in a direction away from the second cylinder end, and The overlapping portion 31e at the second tube end may have a shape that is recessed toward the first tube end. In such a configuration, the effect according to (13) described above is obtained by the first tube end, while the effect according to (12) described above is obtained by the second tube end.

[Sixth Embodiment]
With reference to FIGS. 27 to 32, a sixth embodiment in which the package of the present disclosure and the method for manufacturing the package are embodied will be described. The sixth embodiment is mainly different from the third embodiment in the configuration for opening the bag and the configuration for opening the sleeve. Therefore, in the following, such differences will be described in detail, and in the packaging body of the sixth embodiment, the same components as those in the third embodiment will be denoted by the same reference numerals, and detailed description thereof will be omitted. Moreover, below, the structure of a package, the effect | action of a package, and the manufacturing method of a package are demonstrated in order.

[Composition of package]
The structure of a package is demonstrated with reference to FIG. 27 and FIG.
As shown in FIG. 27, the sleeve 30 includes an opening wall portion 33 that extends along a direction in which the two wall portions 32 face each other and is connected to the two wall portions 32, and the opening wall portion 33 has a substantially rectangular shape. An unsealing lid portion 34 is defined. The opening lid part 34 is partitioned by a folding line 34a for folding the opening lid part 34 in a direction crossing the opening wall part 33, and a separation line 34b for partitioning a substantially rectangular portion from the folding line 34a. The opening lid part 34 is connected to the sleeve 30 by a folding line 34a. The separation line 34 b enables the opening lid portion 34 to be separated from the opening wall portion 33. The opening lid part 34 covers the opening part formed in the sleeve 30 by the separation of the opening lid part 34.

  A part of the part of the separation line 34 b that faces the folding line 34 a is a cutting line 34 c that is separated from the opening wall 33. The portion surrounded by the cutting line 34 c in the opening lid 34 is a knob 35 that can be picked with a finger when the user of the package 10 opens the sleeve 30. The opening lid part 34 is an example of a lid part.

  As shown in FIG. 28, the bag body 20 includes a crimping portion 72 having a band shape extending over the entire sealing direction described above, and a part of the crimping portion 72 overlaps with the opening lid portion 34 of the sleeve 30. Is formed. A cut 73 is formed in the crimping portion 72 at a position overlapping the opening lid portion 34, and the cut 73 is cut out from the outer edge of the crimping portion 72 away from the bag body 20 toward the bag body 20.

  The bag body 20 includes an opening assisting portion 92, and the opening assisting portion 92 defines a substantially rectangular portion of the bag body 20 that overlaps with the portion defined by the separation line 34b. A part of the opening assisting portion 92 extends along the bisector of the tip 73a of the cut 73 and bends in the sealing direction. The other part of the opening assisting portion 92 extends along the crimping portion 72 at a position outside the crimping portion 72.

  The crimping portion 72 is a portion located inside the portion defined by the opening assisting portion 92, and is separated by the cut 73 from the portion closer to the fold line 34 a than the cut 73 and farther from the fold line 34 a than the cut 73. It is divided into parts. In the crimping portion 72, a portion above the cut 73 among the two portions defined by the cut 73 is bonded to the opening lid portion 34 by the bonding portion 101. The adhesion part 101 may be comprised by the adhesive agent, for example, and may be comprised by a part which was a part of the crimping | compression-bonding parts 72, and was adhere | attached on the opening lid part 34 by heat welding. In FIG. 28, for convenience of description of the bonding part 101, dots are attached to the bonding part 101. In addition, the crimping part 72 is an example of an opening part.

[Action of packaging]
The operation of the package will be described with reference to FIGS. 29 and 30. FIG.
As shown in FIG. 29, when the sleeve 30 is opened, the user of the package 10 picks up the knob 35 with his / her finger and lifts the opening lid 34 away from the opening wall 33, for example. Thereby, the opening cover part 34 is cut | disconnected from the opening wall part 33 along the separation line 34b in an order from the part close | similar to the knob | pick part 35. FIG.

  At this time, since a part of the crimping part 72 is adhered to the opening lid part 34 by the adhesive part 101, the crimping part 72 is pulled in a direction away from the bag body 20. Therefore, when the force in the direction in which the cut 73 extends is applied to the cut 73, the bag body 20 is torn from the tip 73 a of the cut 73. Further, when the opening lid portion 34 is further lifted, the torn portion of the bag body 20 is connected to the opening assisting portion 92, and the bag body 20 is torn along the opening assisting portion 92.

  Accordingly, as shown in FIG. 30, the bag body 20 is formed with a bag body opening 93 that exposes the inside of the bag body 20 to the outside of the bag body 20. A part of the bag body 20 that is surrounded by the opening assisting part 92 in the bag body 20 before opening is connected to a part in the circumferential direction of the bag body opening part 93 as an opening piece 94, and Bonded to the opening lid 34. And the opening part 71 is formed in the sleeve 30 because the part divided by the separation line 34b among the opening lid parts 34 is cut off from the opening wall part 33. The edge of the opening 71 is formed by a fold line 34 a and a separation line 34 b, and the opening lid 34 is connected to a fold line 34 a that is a part of the edge of the opening 71.

When the sleeve 30 is opened, the bag body 20 is also opened at the same time. Therefore, the opening of the package body 10 is simpler than the configuration in which the sleeve 30 and the bag body 20 are individually opened.
[Manufacturing method of package]
The manufacturing method of a package is demonstrated with reference to FIG. 31 and FIG. The manufacturing process shown in FIG. 31 is a process preceding the manufacturing process shown in FIG. 5 and corresponds to the manufacturing process shown in FIG. The manufacturing process shown in FIG. 32 corresponds to the manufacturing process shown in FIG. 5 and the manufacturing process shown in FIG.

  As shown in FIG. 31, when the packaging body 10 is formed, first, a part of one resin sheet 81 and another part of the same resin sheet 81 are thermocompression bonded, so 72 is formed, and a cut 73 is formed in a part of the crimping portion 72. And among the resin-made sheets 81, from the front-end | tip part 73a of the cut | interruption 73, the part along the outer edge connected to the resin-made sheet 81 in the crimping | compression-bonding part 72, the part along the bisector of the front-end | tip part 73a, and a bisector The opening assisting portion 92 is formed at a portion substantially perpendicular to the opening.

  As described above, in the configuration in which the cut is located in the cylindrical body sealing portion 22a, when the cylindrical body sealing portion 22a is formed, the opening assistance located on the opposite sides of the cylindrical body sealing portion 22a. The position of the portion 92 may be displaced in a direction orthogonal to the extending direction of the cylindrical sealing portion 22a. Thereby, the tearing part formed from the front-end | tip part of a cut | interruption, and the opening assistance part 92 become difficult to connect, and the bag body 20 becomes difficult to open.

  On the other hand, according to the package 10 of the present embodiment, the resin sheet 81 is formed in a state where the positions of the crimping portion 72, the cut 73, and the opening assisting portion 92 are determined. Therefore, when the bag body 20 is opened, the tearing portion formed from the tip 73 a of the cut 73 is connected to the opening assisting portion 92. Therefore, the bag body 20 is easily opened.

  As shown in FIG. 32, in the resin sheet 81, two end portions in a direction orthogonal to the direction in which the crimping portion 72 extends are thermocompression bonded to each other to form a cylinder 82 having a cylinder sealing portion 22a. The Then, the paperboard 83 partitioned by the opening lid portion 34 is attached to a position where a part of the crimping portion 72, the cut 73, and the opening assisting portion 92 in the cylindrical body 82 overlap with the opening lid portion 34. At this time, the cylinder 82 and the paperboard 83 are bonded together by the bonding portion 101. Note that the cylindrical body 82 may be formed from the resin sheet 81 after the paperboard 83 is attached to the resin sheet 81 on which the crimping part 72, the cut 73, and the opening assisting part 92 are formed.

After the process shown in FIG. 32 is performed, the package 10 is manufactured by performing the same process as that of the first embodiment described above.
As described above, according to the package of the sixth embodiment and the method for manufacturing the package, the effects listed below can be obtained in addition to the effects according to (1) described above.

(14) When the sleeve 30 is opened, the bag body 20 is also opened at the same time. Therefore, the opening of the package body 10 is simpler than the configuration in which the sleeve 30 and the bag body 20 are individually opened.
The sixth embodiment described above can be implemented with appropriate modifications as follows.

  The bag body 20 may not include the crimp part 72 and the cut 73 formed in the crimp part 72. In such a configuration, it is only necessary that a cut is formed at a position overlapping the opening lid portion 34 of the sleeve 30 in the cylindrical body sealing portion 22a. Even with this configuration, at least the effect according to (14) can be obtained.

-The opening assistance part 92 should just be formed in a part in the opening direction of the cut 73, and even if it is such a structure, the effect according to (14) mentioned above can be acquired.
-The bag body 20 does not need to be provided with the opening assistance part 92. FIG. Even with such a configuration, it is possible to obtain the effect according to the above (14).

  The adhesive part 101 may be a part of the crimping part 72 that faces the sleeve 30 and extends to the whole part surrounded by the opening assisting part 92. Alternatively, the bonding portion 101 may be formed along the opening assisting portion 92 in a portion surrounded by the opening assisting portion 92 in the bag body 20. Alternatively, the bonding portion 101 may extend over the entire portion surrounded by the opening assisting portion 92 in the surface of the bag body 20 that faces the sleeve 30.

  -The package 10 of 6th Embodiment can also be implemented in combination with the structure of the package 10 of 4th Embodiment. That is, among the tube ends 31 of the sleeve 30, the overlapping portion that overlaps the flap portion 21 may be recessed toward the other tube end 31 rather than the non-overlapping portion that does not overlap the flap portion 21. According to such a structure, the effect according to (12) mentioned above can also be acquired.

  -The package 10 of 6th Embodiment can also be implemented in combination with the structure of the package 10 of 5th Embodiment. That is, among the tube ends 31 of the sleeve 30, the overlapping portion that overlaps the flap portion 21 is in a direction in which the overlapping portion that overlaps the flap portion 21 is farther from the other tube end than the non-overlapping portion that does not overlap the flap portion 21. It may stick out. According to such a structure, the effect according to (13) mentioned above can also be acquired.

  -The package 10 of 6th Embodiment can also be implemented in combination with the structure of the package 10 of 5th Embodiment, and the structure of the package 10 of 4th Embodiment. That is, the tube end 31 is a recess that is recessed toward the other tube end 31, has a folded portion that can accommodate the flap portion 21, and the bottom of the folded portion is the other tube end. The structure which has the part protruded toward the direction away from 31 may be sufficient. With such a configuration, the effects according to the above (12) and (13) can be obtained.

  When the two cylinder ends 31 are constituted by the first cylinder end and the second cylinder end, the overlapping portion 31b of the first cylinder end has a shape protruding in a direction away from the second cylinder end, and The overlapping portion 31e at the second tube end may have a shape that is recessed toward the first tube end. In such a configuration, the effect according to (13) described above is obtained by the first tube end, while the effect according to (12) described above is obtained by the second tube end.

  DESCRIPTION OF SYMBOLS 10 ... Packaging body, 11 ... Adhesion part, 20 ... Bag body, 20a ... Sealing surface, 20b ... Flat surface, 21 ... Flap part, 21a ... Bending part, 21b ... Corner | angular part, 22 ... Sealing part, 22a ... Tube Body sealing part, 22b ... end sealing part, 23, 73, 91 ... cut, 23a, 73a ... tip part, 30 ... sleeve, 30a ... sticking part, 31 ... cylinder end, 31a ... opening cylinder end, 31b, 31e: Superimposition part, 31c: Non-superimposition part, 31d, 31f ... Top part, 32 ... Wall part, 33 ... Opening wall part, 34 ... Opening cover part, 34a ... Bending line, 34b ... Separation line, 34c ... Cutting line, 35 ... Picking part, 41,82 ... Cylinder, 51 ... Paperboard, 61,92 ... Opening assisting part, 62,93 ... Bag body opening part, 63,94 ... Opening piece, 71 ... Opening part, 72 ... Pressing part, 81 ... resin sheet, 83 ... paperboard, 101 ... adhesive part.

Claims (11)

A sleeve having a cylindrical shape having a first tube end and a second tube end;
A bag body including two flap portions located inside the sleeve and outside the first tube end, each of the two flap portions being the sleeve at the first tube end. The bag body folded toward the outer peripheral surface of the bag and bonded to the outer peripheral surface;
A package comprising: The two flap portions are two first flap portions,
The bag body
Two second flap portions located outside the second cylinder end,
The package according to claim 1, wherein each of the two second flap portions is folded toward the outer peripheral surface of the sleeve at the second cylinder end and bonded to the outer peripheral surface. The bag body
The packaging body according to claim 1, further comprising an opening portion formed with a cut along an opening direction that is one direction. The bag body
The packaging body according to claim 3, further comprising an opening assisting portion extending along the opening direction and having a mechanical strength lower than that of the other portion of the bag body. The bag body
It is composed of at least one resin sheet,
A plurality of sealing portions that are bonded portions of edges of the resin sheet;
A crimping portion that is a portion where the one resin sheet is folded and bonded,
The package according to claim 3 or 4, wherein the opening portion is the crimping portion. The bag body
It is composed of at least one resin sheet,
Provided with a plurality of sealing parts that are the bonded parts of the edges of the resin sheet,
The package according to claim 3 or 4, wherein the opening portion is the sealing portion. The sleeve is
The package according to claim 5 or 6, further comprising an opening that exposes the cut to the outside of the sleeve at a position different from the first tube end and the second tube end. The first tube end is formed with a folded portion that is a recess recessed toward the second tube end,
The packaging body according to any one of claims 1 to 7, wherein the flap portion is folded in the folded portion. The first tube end is
A folded portion protruding toward the direction away from the second tube end;
The flap portion is
The package according to any one of claims 1 to 8, wherein the package is folded at the folded portion. The opening portion is divided into two parts by the cut,
The sleeve is
An opening formed at a position different from the first tube end and the second tube end, the opening exposing the cut to the outside of the sleeve;
A cover that covers the opening and connects to at least a part of an edge of the opening;
The packaging body according to claim 3, wherein the lid portion is bonded to one of the divided two parts. Forming a bag,
Disposing the bag body in a sleeve having a cylindrical shape having a first tube end and a second tube end, and disposing two flap portions outside the first tube end;
A step of folding each of the two flap portions toward the outer peripheral surface of the sleeve at the first cylinder end and bonding the folded portion to the outer peripheral surface.

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