JP6744568B2 - Pouch - Google Patents

Description

The present invention relates to a pouch including a plurality of guide wires.

Pouches that store contents such as food are known. As shown in FIG. 9, a pouch 900 of Patent Document 1, which is an example thereof, has a bag 910 constituted by a first sheet 911 and a second sheet 912 facing each other, and a closing piece for closing the opening of the bag 910, as shown in FIG. Includes a guide wire 920 for cutting out 910A. In the example shown in FIG. 9, the first sheet 911 constitutes the front surface of the bag 910 and the second sheet 912 constitutes the back surface of the bag 910. The guide line 920 is provided on the first sheet 911 so as to extend in the width direction of the bag 910, and the second guide line 920 is provided on the second sheet 912 so as to extend in the width direction of the bag 910. Guide line 922.

The first guide line 921 includes a first straight line portion 921A, an upper curved portion 921B, and a second straight line portion 921C. The first straight portion 921A extends in the width direction of the bag 910 from the edge of one side portion of the first sheet 911. The second straight portion 921C extends in the width direction of the bag 910 from the edge of the other side portion of the first sheet 911. The upper curved portion 921B connects the first linear portion 921A and the second linear portion 921C to each other and projects upward in the vertical direction of the bag 910.

The second guide line 922 includes a first straight section 922A, a downward curved section 922B, and a second straight section 922C. The first straight portion 922A extends in the width direction of the bag 910 from the edge of one side of the second sheet 912. The second straight portion 922C extends in the width direction of the bag 910 from the edge of the other side portion of the second sheet 912. The downward curved portion 922B connects the first linear portion 922A and the second linear portion 922C to each other, and projects downward in the vertical direction of the bag 910.

By cutting a part of the bag 910 along each of the guide lines 921 and 922, the bag 910 is separated into the closing piece 910A and the bag body 910B. That is, as shown in FIG. 10, the closing piece 910A is cut out from the bag 910 to open the bag 910. Accordingly, the first step portion 931 is formed in a portion between the upper curved portion 921B and the lower curved portion 922B in the vertical direction of the bag body 910B, and the upper curved portion 921B and the lower curved portion in the vertical direction of the closing piece 910A are formed. A second step portion 932 is formed in a portion between 922B and 922B. In the example shown in FIG. 10, the first step portion 931 is formed on the first sheet 911 of the bag body 910B, and the second step portion 932 is formed on the second sheet 912 of the closing piece 910A. To be done. A user who uses the pouch 900 can easily open the pouch 900 by gripping the first step portion 931, for example.

JP, 2005-289396, A

As a procedure for cutting the closing piece 910A from the bag 910, a first cutting procedure and a second cutting procedure can be considered. The first cutting procedure is, for example, a procedure of cutting the closing piece 910A from the bag 910 by the user pulling the closing piece 910A toward the bag body 910B. The second cutting procedure is a procedure of cutting the closing piece 910A from the bag 910 by, for example, the user pushing the closing piece 910A inwardly with respect to the bag body 910B.

When the closing piece 910A is cut off from the bag 910 by the first cutting procedure, the portion corresponding to the first step portion 931 of the first sheet 911 and the second step portion 932 of the second sheet 912 are cut in the process. The corresponding portion interferes with the operation of cutting off the closing piece 910A from the bag 910. Therefore, the closing piece 910A may not be cut off smoothly. In the pouch in which the first guide wire 921 is provided on the second sheet 912 and the second guide wire 922 is provided on the first sheet 911, when the closing piece 910A is cut off by the second cutting procedure. Similar issues arise.

[1] One form of a pouch according to the present invention is such that a bag is composed of a first sheet, a second sheet facing the first sheet, the first sheet and the second sheet. A sealing part for joining the first sheet and the second sheet together, and a closing piece including a part of the sealing part for forming an opening in the bag, so that the closing part can be separated from the bag. A first sheet and a guide portion provided on the second sheet, the guide portion including an inner surface of the first sheet and the second portion at the opening when the closing piece is separated from the bag. The shape of the opening when the closing piece is separated from the bag so that at least one of the inner surfaces of the sheet is exposed, and the closing piece pops out toward the first sheet, and the closing The closing piece is provided so as to have a shape different from that of the opening when the closing piece is separated from the bag so that the piece pops out toward the second sheet side.

According to the pouch, the shape of the opening of the bag when the closing piece is cut from the bag by the first cutting procedure described above, and the shape of the bag when the closing piece is cut from the bag by the second cutting procedure. The shape of the opening is different. This is related to the difference between the guide portion used in the first cutting procedure and the guide portion used in the second cutting procedure. That is, before the interference between the first sheet and the second sheet increases during the process of cutting the closing piece from the bag, the closing piece is cut from the bag in both the first cutting procedure and the second cutting procedure. The guide part is provided so as to be provided. Therefore, the pouch can cut off the closing piece smoothly.

Further, when the closing piece of the pouch is cut out from the bag, at least one of the inner surface of the first sheet and the inner surface of the second sheet is exposed at the opening of the bag. Therefore, a user who uses the pouch can easily open the opening by gripping the exposed portion. In this way, the pouch can cut off the closing piece smoothly, and the opening can be easily opened.

[2] According to an example of the pouch, the guide portion includes a plurality of first guide lines provided on the first sheet, and at least one second guide provided on the second sheet. Including lines.

[3] According to an example of the pouch, the plurality of first guide wires are a first outer guide wire provided at a position near the seal portion included in the closing piece, and the first outer wire. A first inner guide line is provided at a position farther from the seal portion included in the closing piece than a guide line, and the at least one second guide line is the first outer side on the projection plane. It intersects or contacts at least one of the guide line and the first inner guide line.

[4] According to an example of the pouch, the guide portion includes a plurality of the second guide wires, and the plurality of second guide wires are provided at a position near the seal portion included in the closing piece. A second outer guide wire provided, and a second inner guide wire provided at a position farther from the seal portion included in the closing piece than the second outer guide wire, the second outer guide wire The guide line intersects the first outer guide line on the projection surface, and the second inner guide line intersects the first inner guide line on the projection surface.

[5] According to an example of the pouch, the guide portion further includes a notch provided in the seal portion, the end of the first outer guide wire and the end of the second inner guide wire, or An end of the first inner guide wire and an end of the second outer guide wire are connected to the tip portion of the notch.

[6] According to an example of the pouch, at least one of the first guide line and the second guide line is a wavy line.
[7] According to an example of the pouch, the phases of the first outer guide line and the first inner guide line are the same, and the phases of the second outer guide line and the second inner guide line are the same. Are the same and are out of phase with the first outer guide line and the first inner guide line.

[8] According to an example of the pouch, the deviation between the first outer guide line and the first inner guide line and the second outer guide line and the second inner guide line is a half cycle. The apex of the valley of the first outer guide line and the apex of the crest of the second inner guide line are in contact with each other on the projection plane, and the apex of the crest of the first inner guide line and the second The vertices of the valleys of the outer guide lines are in contact with each other on the projection surface.

According to the pouch, the closing piece can be cut off smoothly, and the opening can be easily opened.

The front view of the pouch of 1st Embodiment. The enlarged view which shows each guide line of FIG. 1, and its periphery. The enlarged view of the A section of FIG. The perspective view showing the state where the closing piece is cut off from the bag by the 1st cutting procedure. The perspective view showing the state where the closing piece is cut off from the bag by the 2nd cutting procedure. The enlarged view which shows each guide line of the pouch of 2nd Embodiment, and its periphery. The enlarged view which shows each guide line of the pouch of a modification, and its periphery. The enlarged view which shows each guide line of the pouch of a modification, and its periphery. The front view of the conventional pouch. The front view which shows the state by which the closure piece is cut out from the pouch bag of FIG.

(First embodiment)
FIG. 1 is an external view of a pouch 1 containing a content 100. The form of the pouch 1 is a flat pouch. The pouch 1 includes a bag 10. The bag 10 includes a first sheet 11, a second sheet 12, and a seal portion 20. The first sheet 11 and the second sheet 12 face each other. The function of the seal portion 20 is to join the first sheet 11 and the second sheet 12 so that the bag 10 is constituted by the first sheet 11 and the second sheet 12. In one example, the bag 10 is configured by sealing the edges of the sheets 11 and 12 to each other. In addition, the dots shown are the seal portions 20.

Each of the sheets 11 and 12 is a laminated sheet having the same layer structure, and includes, for example, an outermost layer, an intermediate layer, and an innermost layer made of a transparent material. An example of the material forming the outermost layer is polyethylene terephthalate. The intermediate layer includes, for example, a printing layer, a first adhesive layer, a stretched nylon layer, and a second adhesive layer. The print layer is provided inside the outermost layer, and a picture, text of product description, and the like are printed on the outer surface. The first adhesive layer is provided inside the printed layer. The stretched nylon layer is provided inside the first adhesive layer. The second adhesive layer is provided inside the stretched nylon layer. The innermost layer is provided inside the second adhesive layer. An example of the material forming the innermost layer is unstretched polypropylene.

The seal portion 20 includes a first side seal portion 21, a second side seal portion 22, a top seal portion 23, and a bottom seal portion 24. The first side seal portion 21 is a portion in which one side portion of each of the sheets 11 and 12 is sealed with each other. The second side seal portion 22 is a portion where the other side portions of the sheets 11 and 12 are sealed to each other. The upper seal portion 23 is a portion in which the upper portions of the sheets 11 and 12 in front view are mutually sealed. The bottom seal portion 24 is a portion where the bottom portions of the sheets 11 and 12 in front view are mutually sealed.

The bag 10 further includes a storage space 13. The accommodation space 13 is a space surrounded by the inner surface of the first sheet 11 and the inner surface of the second sheet 12. That is, the first sheet 11 and the second sheet 12 face each other with the accommodation space 13 in between. The content 100 is stored in the storage space 13. An example of the content 100 is a food.

The pouch 1 further includes a fastener 30. The function of the fastener 30 is to open and close the pouch 1. The fastener 30 is provided on the inner surface of each sheet 11, 12 along the longitudinal direction of the upper seal portion 23 in the range from the first side seal portion 21 to the second side seal portion 22. The accommodation space 13 constitutes a space closer to the bottom seal portion 24 than the fastener 30 in the space surrounded by the inner surfaces of the seats 11 and 12.

When the fastener 30 is opened, the opening 14 that is the opening of the bag 10 communicates with the accommodation space 13, and the opening 14 is opened. When the fastener 30 is closed, the opening 14 is closed. In the example shown in FIG. 1, the opening 14 is closed by the upper seal portion 23 and the fastener 30.

The pouch 1 further includes a guide portion 40. The function of the guide portion 40 is to assist in cutting a part of the bag 10. The bag 10 is separated into a closing piece 10A and a bag body 10B by cutting a part thereof. The closing piece 10A is a portion of the bag 10 including the upper seal portion 23. The bag body 10B is a part of the bag 10 excluding the closing piece 10A. The guide portion 40 is provided on the first sheet 11 and the second sheet 12 so that the closing piece 10A can be separated from the bag body 10B to form the opening 14 in the bag 10. The opening 14 can be opened by cutting the closing piece 10A from the bag body 10B.

The guide portion 40 is provided so that at least one of the inner surface of the first sheet 11 and the inner surface of the second sheet 12 is exposed in the opening 14 of the bag 10 when the closing piece 10A is separated from the bag 10. In addition, the guide portion 40 has a shape of the opening portion 14 when the closing piece 10A is separated from the bag 10 so that the closing piece 10A projects toward the first sheet 11 side, and the closing piece 10A has the second sheet 12 side. The opening 14 is provided so as to have a shape different from that of the opening 14 when the closing piece 10A is separated from the bag 10 so as to pop out.

At least a first direction and a second direction are defined in the pouch 1. The first direction is a direction along the opening 14 when the pouch 1 is viewed from the front. The second direction is a direction orthogonal to the first direction when the pouch 1 is viewed from the front.

The guide portion 40 includes a plurality of first guide wires 50, a plurality of second guide wires 60, and a pair of notches 70. One notch 70 is provided on the upper seal portion 23 side of the first side seal portion 21. The other notch 70 is provided on the upper seal portion 23 side of the second side seal portion 22. For example, each notch 70 is provided at the same distance from the upper seal portion 23 in the second direction.

The first guide wire 50 is provided on the first sheet 11 so as to extend in the first direction, for example, in the range from the one notch 70 to the other notch 70. An example of the number of the plurality of first guide lines 50 is two. The second guide wire 60 is provided on the second sheet 12 so as to extend in the first direction, for example, in the range from the one notch 70 to the other notch 70. An example of the number of the plurality of second guide wires 60 is two. The guide lines 50 and 60 are formed by using, for example, a rotary die cutter.

The closing piece 10A is cut from the bag body 10B according to the notch 70 and the guide lines 50 and 60, so that the closing piece 10A and the bag body 10B are separated from each other. The one-dot chain line shown is a virtual line VL connecting the apex 70A of the one notch 70 and the apex 70A of the other notch 70.

As shown in FIG. 2, the plurality of first guide lines 50 includes a first outer guide line 51 and a first inner guide line 52. The first outer guide wire 51 is provided at a position of the first sheet 11 near the upper seal portion 23. The first inner guide wire 52 is provided at a position farther from the upper seal portion 23 than the first outer guide wire 51 in the first sheet 11 in the second direction.

The first outer guide wire 51 is, for example, a wavy line, and includes a plurality of outer curved portions 51A and a plurality of inner curved portions 51B. The outer curved portion 51A is a portion protruding toward the upper seal portion 23 side. The inner curved portion 51B is a portion that projects in a direction opposite to the upper seal portion 23 side. The first outer guide wire 51 is provided such that the outer curved portions 51A and the inner curved portions 51B are alternately continuous.

The first inner guide wire 52 is, for example, a wavy line, and includes a plurality of outer curved portions 52A and a plurality of inner curved portions 52B. The outer curved portion 52A is a portion that protrudes toward the upper seal portion 23 side. The inner curved portion 52B is a portion that projects in a direction opposite to the upper seal portion 23 side. The first inner guide wire 52 is provided so that the outer curved portions 52A and the inner curved portions 51B are alternately continuous. The first outer guide wire 51 and the first inner guide wire 52 have the same phase.

The plurality of second guide wires 60 include a second outer guide wire 61 and a second inner guide wire 62. The second outer guide wire 61 is provided in a portion of the second sheet 12 near the upper seal portion 23. The second inner guide wire 62 is provided at a position farther from the upper seal portion 23 than the second outer guide wire 61 of the second sheet 12 in the second direction.

The second outer guide wire 61 is, for example, a wavy line, and includes a plurality of outer curved portions 61A and a plurality of inner curved portions 61B. The outer curved portion 61A is a portion that protrudes toward the upper seal portion 23 side. The inner curved portion 61B is a portion that projects in a direction opposite to the upper seal portion 23 side. The second outer guide wire 61 is provided such that the outer curved portions 61A and the inner curved portions 61B are alternately continuous.

The second inner guide wire 62 is, for example, a wavy line, and includes a plurality of outer curved portions 62A and a plurality of inner curved portions 62B. The outer curved portion 62A is a portion protruding toward the upper seal portion 23 side. The inner curved portion 62B is a portion that projects in a direction opposite to the upper seal portion 23 side. The second inner guide wire 62 is provided so that the outer curved portions 62A and the inner curved portions 62B are alternately continuous.

The phases of the second outer guide wire 61 and the second inner guide wire 62 are the same, but different from the phases of the first outer guide wire 51 and the first inner guide wire 52. In one example, the deviation between the first outer guide wire 51 and the first inner guide wire 52 and the second outer guide wire 61 and the second inner guide wire 62 is a half cycle.

The first outer guide wire 51 and the second outer guide wire 61 are provided at the same position in the second direction. For example, the distance between the upper seal portion 23 and the first outer guide wire 51 in the second direction is equal to the distance between the upper seal portion 23 and the second outer guide wire 61 in the second direction. Further, the first inner guide wire 52 and the second inner guide wire 62 are provided at the same position in the second direction.

When the guide lines 50 and 60 are projected on the projection surface, the positional relationship between the guide lines 50 and 60 is substantially the same as the relationship shown in FIG. That is, the first outer guide line 51 and the second outer guide line 61 intersect, and the first inner guide line 52 and the second inner guide line 62 intersect on the projection surface.

The apex of the inner curved portion 51B forming the valley of the first outer guide line 51 and the apex of the outer curved portion 62A forming the crest of the second inner guide line 62 are in contact with each other on the projection surface. The contact point between the first outer guide line 51 and the second inner guide line 62 on the projection surface is located on the virtual line VL, for example. The apex of the outer curved portion 52A forming the crest of the first inner guide line 52 and the apex of the inner curved portion 61B forming the valley of the second outer guide line 61 are in contact with each other on the projection surface. The contact point between the first inner guide line 52 and the second outer guide line 61 on the projection surface is located on the virtual line VL, for example.

The amplitude of the wave in each of the guide lines 50 and 60 is preferably 0.75 mm or more, and one example thereof is 0.75 mm. The distance between the apex of the outer curved portion 51A of the first outer guide line 51 and the apex of the inner curved portion 62B of the second inner guide line 62, and the apex of the outer curved portion 61A of the second outer guide line 61. The distance from the apex of the inner curved portion 52B of the first inner guide wire 52 is preferably 3.0 mm or more, and one example thereof is 3.0 mm. The wavelength of each guide wire 50, 60 is preferably 60 mm or more, and an example thereof is 60 mm.

The ends of each guide wire 50, 60 connect with a notch 70. Specifically, the end of the first outer guide wire 51 and the end of the second inner guide wire 62 on the second side seal portion 22 side (see FIG. 1) are connected to the tip of the notch 70. The tip of the notch 70 includes the apex 70A and its vicinity. Further, the end of the first inner guide wire 52 and the end of the second outer guide wire 61 on the side of the first side seal portion 21 are connected to the tip of the notch 70. In the example shown in FIG. 3, the end of the first inner guide wire 52 and the end of the second outer guide wire 61 on the side of the first side seal portion 21 are connected to the vicinity of the apex 70A of the notch 70. An example of the type of each guide wire 50, 60 is a C-shape (see FIG. 3).

A procedure for cutting off the pouch 1 will be described with reference to FIGS. 4 and 5.
As a procedure for a user who uses the pouch 1 to cut off the closing piece 10A from the bag 10, a first cutting procedure (see FIG. 4) and a second cutting procedure (see FIG. 5) can be considered. In the first cutting procedure, the user holds the bag body 10B with one hand so that the first sheet 11 faces itself, and the closing piece 10A with the other hand on the first sheet 11 side, that is, on itself. The closing piece 10A is cut out from the bag 10 so as to pop out toward the bag 10.

According to the first cutting procedure, the sheets 11 and 12 are typically cut as shown in FIG. 4 as follows. First, each sheet 11 along the imaginary line VL from the vertex 70A of the notch 70 or the vicinity thereof to a position corresponding to a contact point CA between the first inner guide line 52 and the second outer guide line 61 on the projection surface. , 12 are disconnected. The contact point CA is a contact point where the cut edges of the sheets 11 and 12 cut along the virtual line VL reach first. At this stage, the cutting paths in the sheets 11 and 12 are the same.

Next, the first sheet 11 is cut along the first inner guide line 52, and the second sheet 12 is cut along the second outer guide line 61. Thus, after the cutting path exceeds the contact CA, the sheets 11 and 12 are cut according to different cutting paths. Finally, when the cutting path of each sheet 11, 12 reaches the other notch 70, the closing piece 10A is cut off from the bag body 10B.

By cutting the closing piece 10A from the bag 10 by the first cutting procedure, the bag body step portion 12A is formed on the second sheet 12 of the bag body 10B, and the first sheet 11 of the closing piece 10A is formed. A closing piece stepped portion 11B is formed at. The bag body step portion 12A is a portion surrounded by the second outer guide wire 61 and the first inner guide wire 52, and the inner surface of the second sheet 12 is exposed in the opening portion 14. The closing piece step portion 11B is a portion of the first sheet 11 that faces the bag body step portion 12A, and is the portion of the closing piece 10A where the inner surface of the first sheet 11 is exposed.

In the first cutting procedure, since the closing piece 10A jumps out to the first sheet 11 side, it is difficult for the closing piece step portion 11B to come into contact with the bag body 10B when the bag 10 is cut, and the second outer guide wire is formed. The inner curved portion 61B of 61 is also less likely to contact the bag body 10B. Therefore, the closing piece 10A is cut off smoothly. Also, the user can easily open the opening 14 by gripping the bag body step 12A.

In the second cutting procedure, the user holds the bag body 10B with one hand so that the first sheet 11 faces itself, and the closing piece 10A with the other hand, the second sheet 12 side, that is, the self. The closure piece 10A is cut out from the bag 10 so as to project toward the opposite side.

According to the second cutting procedure, the sheets 11 and 12 are typically cut as shown in FIG. 5 as follows. First, from the apex 70A of the notch 70 or the vicinity thereof to the position corresponding to the contact point CB of the first outer guide line 51 and the second inner guide line 62 on the projection surface, each sheet 11 is located along the imaginary line VL. , 12 are disconnected. The contact point CB is a contact point where the cut edges of the sheets 11 and 12 cut along the virtual line VL reach first. At this stage, the cutting paths in the sheets 11 and 12 are the same.

Next, the first sheet 11 is cut along the first outer guide line 51, and the second sheet 12 is cut along the second inner guide line 62. In this way, after the cutting path exceeds the contact point CB, the sheets 11 and 12 are cut according to different cutting paths. Finally, when the cutting path of each sheet 11, 12 reaches the other notch 70, the closing piece 10A is cut off from the bag body 10B.

By cutting the closing piece 10A from the bag 10 by the second cutting procedure, the bag body stepped portion 11A is formed on the first sheet 11 of the bag body 10B, and the second sheet 12 of the closing piece 10A is formed. A closing piece stepped portion 12B is formed at. The bag body step 11</b>A is a portion surrounded by the first outer guide wire 51 and the second inner guide wire 62, and the inner surface of the first sheet 11 is exposed in the opening 14. The closing piece step portion 12B is a portion of the second sheet 12 that faces the bag body step portion 11A, and is the portion of the closing piece 10A where the inner surface of the second sheet 12 is exposed.

In the second cutting procedure, since the closing piece 10A jumps out to the second sheet 12 side, it is difficult for the closing piece step portion 12B to come into contact with the bag body 10B as the bag 10 is cut, and the first outer guide wire is removed. The inner curved portion 51B of 51 is also unlikely to contact the bag body 10B. Therefore, the closing piece 10A is cut off smoothly. Also, the user can easily open the opening 14 by gripping the bag body step 11A.

In this way, when the closing piece 10A is cut by the first cutting procedure or the second cutting procedure, the bag 10 is cut along any one of the guide lines 50, 60. Which guide wire is cut depends mainly on the force applied to the pouch 1 to cut off the closing piece 10A.

According to the pouch 1 of the first embodiment, the following effects are further obtained.
When the number of the first guide wire 50 and the number of the second guide wire 60 are one, respectively, in the process in which the closing piece 10A is cut out from the bag 10 by either the first cutting procedure or the second cutting procedure. The interference between the first sheet 11 and the second sheet 12 becomes large, and the operation of cutting the closing piece 10A from the bag 10 is hindered. In this case, the cut portion, which is a portion where the closing piece 10A and the bag body 10B are separated from each other, may be derailed from the corresponding guide wires 50 and 60. Therefore, even if the closing piece 10A is cut out from the bag 10, the bag body step portions 11A and 12A used for easily opening the pouch 1 may not be properly formed.

On the other hand, according to the pouch 1, before the interference between the first sheet 11 and the second sheet 12 becomes large in the process of cutting the closing piece 10A from the bag 10, the first cutting procedure and the second cutting procedure are performed. In each case, the guide wires 50 and 60 are provided so that the closing piece 10A is cut out from the bag 10. Therefore, in the process of cutting the closing piece 10A from the bag 10, it is difficult for the cut end to be derailed from the corresponding guide lines 50 and 60. Therefore, the bag body step portions 11A and 12A are appropriately formed, and the pouch 1 can be easily formed. You can open it.

In the pouch 1, the apex of the outer curved portion 52A of the first inner guide line 52 and the apex of the inner curved portion 61B of the second outer guide line 61 are in contact with each other on the projection surface. According to this configuration, in the process of cutting the closing piece 10A from the bag 10 by the first cutting procedure, the cut end is easily guided to the first inner guide wire 52 and the second outer guide wire 61. Therefore, as compared with the case where the apex of the outer curved portion 52A of the first inner guide line 52 and the apex of the inner curved portion 61B of the second outer guide line 61 are separated from each other on the projection surface, Due to the cutting procedure, the closing piece 10A is easily cut off smoothly. Further, according to the pouch 1, since the apex of the inner curved portion 51B of the first outer guide line 51 and the apex of the outer curved portion 62A of the second inner guide line 62 are in contact with each other on the projection surface, the second pouch 1 The same effect can be obtained in the cutting procedure.

The first guide wire 50 and the second guide wire 60 are wavy lines. Therefore, as compared with the case where each of the guide lines 50 and 60 is a line including a plurality of vertices, the closing piece 10A is easily cut off smoothly. Further, when the closing piece 10A is cut out from the bag 10, the shape of the opening 14 of the bag 10 also forms a wavy line, so that the design of the opening 14 is improved.

When the type of the first guide line 50 and the second guide line 60 is a dotted line or a broken line arranged in a line, the cut end is cut from each of the guide lines 50 and 60 in the process of cutting the closing piece 10A from the bag 10. There is a risk of derailment. On the other hand, in the pouch 1, the type of each of the guide lines 50 and 60 is a C-shape. That is, the individual guide lines 50 and 60 are arranged in two rows. For this reason, in the process of cutting the closing piece 10A from the bag 10, the possibility that the cut edge derails from the guide lines 50 and 60 decreases, and the opening 14 of the bag 10 is likely to be formed smoothly.

(Second embodiment)
The pouch 1 of the second embodiment differs from the pouch 1 of the first embodiment in the points described below, and has substantially the same configuration as the pouch 1 of the first embodiment in other points. In the description of the pouch 1 of the second embodiment, the same components as those of the pouch 1 of the first embodiment are designated by the same reference numerals, and a part or all of the description of the configuration will be omitted.

As shown in FIG. 6, the guide portion 40 of the second embodiment includes a second guide line 160 instead of the second guide line 60 (see FIG. 1).
The second guide wire 160 is provided on the second sheet 12 so as to extend in the first direction, for example, in the range from the one notch 70 to the other notch 70. Specifically, the second guide wire 160 is provided on the second sheet 12 so as to connect the tip of one notch 70 and the tip of the other notch 70. In the example shown in FIG. 6, the second guide line 160 is a straight line. That is, the second guide line 160 exists on the virtual line VL (see FIG. 1).

The second guide line 160 contacts the first outer guide line 51 and the first inner guide line 52 on the projection plane, for example. Specifically, the apex of the inner curved portion 51B of the first outer guide line 51 and the second guide line 160 are in contact with each other on the projection surface. That is, the contact point between the first outer guide line 51 and the second guide line 160 on the projection surface is located on the virtual line VL. The apex of the outer curved portion 52A of the first inner guide line 52 and the second guide line 160 are in contact with each other on the projection surface. That is, the contact point between the first inner guide line 52 and the second guide line 160 on the projection surface is located on the virtual line VL.

An example of the amplitude of the wave on the first guide line 50 is 1.5 mm. That is, an example of the distance between the apex of the outer curved portion 51A of the first outer guide wire 51 and the second guide wire 160 is 3.0 mm. An example of the type of each of the guide lines 50 and 160 is a C-shape.

By cutting the closing piece 10A from the bag 10 according to the first cutting procedure, a bag body step portion (not shown) is formed on the second sheet 12 of the bag body 10B, and the first piece of the closing piece 10A is formed. A step portion (not shown) of the closing piece is formed on the seat 11. The stepped portion of the bag body is a portion surrounded by the first inner guide wire 52 and the second guide wire 160, and the inner surface of the second sheet 12 is exposed at the opening 14. The closing piece step portion is a portion of the first sheet 11 that faces the bag body step portion, and is the portion of the closing piece 10A where the inner surface of the first sheet 11 is exposed.

By cutting the closing piece 10A from the bag 10 by the second cutting procedure, a bag body step portion (not shown) is formed on the first sheet 11 of the bag body 10B, and the second piece of the closing piece 10A is formed. A step portion (not shown) of the closing piece is formed on the seat 12. The bag body step portion is a portion surrounded by the first outer guide wire 51 and the second guide wire 160, and the inner surface of the first sheet 11 is exposed in the opening portion 14. The closing piece step portion is a portion of the second sheet 12 that faces the bag body step portion, and is the portion of the closing piece 10A where the inner surface of the second sheet 12 is exposed. According to the pouch 1 of the second embodiment, substantially the same actions and effects as the pouch 1 of the first embodiment can be obtained.

(Modification)
The above description regarding the embodiment is an example of the form that the pouch according to the present invention can take, and is not intended to limit the form. The pouch according to the present invention may take a form in which, in addition to the above-described embodiment, for example, modified examples of the following embodiments and at least two modified examples that do not contradict each other are combined.

-In 1st Embodiment, the number of each guide wire 50, 60 can be changed arbitrarily. In one example, the number of each guide wire 50, 60 is three as shown in FIG.
The plurality of first guide wires 50 further include a first intermediate guide wire 53 in addition to the first outer guide wire 51 and the first inner guide wire 52. The first intermediate guide wire 53 is provided, for example, between the first outer guide wire 51 and the first inner guide wire 52 of the first sheet 11. The first intermediate guide wire 53 is, for example, a wavy line, and has the same phase as the first outer guide wire 51 and the first inner guide wire 52.

The plurality of second guide lines 60 further includes a second intermediate guide line 63 in addition to the second outer guide line 61 and the second inner guide line 62. The second intermediate guide wire 63 is provided, for example, between the second outer guide wire 61 and the second inner guide wire 62 of the second sheet 12. The second intermediate guide wire 63 is, for example, a wavy wire, and has the same phase as the second outer guide wire 61 and the second inner guide wire 62. The first intermediate guide line 53 intersects, for example, the second guide line 60 and the virtual line VL on the projection plane, and the second intermediate guide line 63, for example, on the projection plane the first guide line 50 and the virtual line VL. Intersect with.

According to this modification, even if the relationship between the guide wires 50, 60 and the notch 70 varies due to the tolerance in the manufacturing process of the pouch 1, the closing piece 10A is cut along either of the guide wires 50, 60. Easy to get rid of. That is, in the process of cutting the closing piece 10A from the bag 10, if the closing piece 10A cannot be cut smoothly along the corresponding guide lines 50 and 60, the closing piece 10A is cut along the respective intermediate guide lines 53 and 63. Will be available. When the closing piece 10A is cut off, the bag 10 is cut along any one of the guide lines 50 and 60. Which guide wire is cut depends mainly on the force applied to the pouch 1 to cut off the closing piece 10A. Further, the number of each guide wire 50, 60 may be four or more.

-In 2nd Embodiment, the number of the 1st guide wire 50 can be changed arbitrarily. In one example, as shown in FIG. 8, the number of the first guide lines 50 is three.
The plurality of first guide wires 50 further include a first intermediate guide wire 53 in addition to the first outer guide wire 51 and the first inner guide wire 52. The first intermediate guide wire 53 is provided, for example, between the first outer guide wire 51 and the first inner guide wire 52 of the first sheet 11. The first intermediate guide wire 53 is, for example, a wavy line, and has the same phase as the first outer guide wire 51 and the first inner guide wire 52. Further, the first intermediate guide line 53 intersects with the second guide line 160 on the projection plane, for example.

According to this modification, even if the relationship between the guide wires 50, 160 and the notch 70 varies due to the tolerance in the manufacturing process of the pouch 1, the closing piece 10A is cut along either of the guide wires 50, 160. Easy to get rid of. That is, in the process of cutting the closing piece 10A from the bag 10, if the closing piece 10A is not cut smoothly along the corresponding guide lines 50 and 160, the closing piece 10A may be cut into the first intermediate guide line 53 and the second intermediate guide line 53. It will be cut along the guide line 160. When the closing piece 10A is cut off, the bag 10 is cut along any one of the guide lines 50 and 60. Which guide wire is cut depends mainly on the force applied to the pouch 1 to cut off the closing piece 10A. Further, the number of the first guide wires 50 may be four or more.

The relationship between the apex of the inner curved portion 51B of the first outer guide wire 51 and the apex of the outer curved portion 62A of the second inner guide wire 62 in the first embodiment can be arbitrarily changed. In the first example, the apex of the inner curved portion 51B of the first outer guide line 51 and the apex of the outer curved portion 62A of the second inner guide line 62 have a predetermined space on the projection surface. The predetermined interval is 1 mm or less. In the second example, the apex of the inner curved portion 51B of the first outer guide line 51 and the apex of the outer curved portion 62A of the second inner guide line 62 intersect on the projection plane. The distance between the apex of the inner curved portion 51B of the first outer guide line 51 and the apex of the outer curved portion 62A of the second inner guide line 62 on the projection surface is 1 mm or less. It should be noted that the same deformation is established in the relationship between the apex of the outer curved portion 52A of the first inner guide wire 52 and the apex of the inner curved portion 61B of the second outer guide wire 61 in the first embodiment. Further, in the second embodiment, the relationship between the apex of the inner curved portion 51B of the first outer guide wire 51 and the second guide wire 160, and the apex of the outer curved portion 52A of the first inner guide wire 52 and the first The same deformation is established in the relationship with the second guide wire 160.

The relationship between the phase of the first guide wire 50 and the phase of the second guide wire 60 can be arbitrarily changed. In the first example, the second guide wire 60 is offset by 90° with respect to the first guide wire 50. In the second example, the second guide line 60 is displaced from the first guide line 50 by 270°.

-The amplitude of the wave in each guide wire 50 and 60 of 1st Embodiment can be changed arbitrarily. In the first example, the wave amplitude at each guide line 50, 60 is greater than 0.75 mm. In the second example, the wave amplitude at each guide line 50, 60 is less than 0.75 mm.

-The amplitude of the wave in the 1st guide wire 50 of a 2nd embodiment can be changed arbitrarily. In the first example, the amplitude of the wave on the first guide wire 50 is greater than 1.5 mm. In the second example, the amplitude of the wave on the first guide wire 50 is less than 1.5 mm.

-The wavelengths of the guide lines 50 and 60 can be arbitrarily changed. In the first example, the wavelength of each guide wire 50, 60 is greater than 60 mm. In the second example, the wavelength of each guide wire 50, 60 is less than 60 mm.

-Whether the first guide line 50 is a wavy line can be arbitrarily changed. In the first example, the first guide line 50 is a line including a plurality of vertices. In the second example, the first guide wire 50 is a wavy line including a straight line in a part thereof. Note that the same deformation also holds for the second guide wire 60.

The type of the first guide wire 50 can be changed arbitrarily. In the first example, the type of the first guide wire 50 is a straight line. In the second example, the type of the first guide line 50 is a broken line. In the third example, the type of the first guide line 50 is a dotted line. Note that the same deformation is also established in the second guide lines 60 and 160.

-The manufacturing method of each guide wire 50, 60, 160 can be arbitrarily changed. In one example, each guide line 50, 60, 160 is formed using a laser. The type of this laser is, for example, one of a carbon dioxide gas laser, a YAG laser, a semiconductor laser, and an argon laser.

The number of notches 70 can be changed arbitrarily. In the first example, the number of notches 70 is one. In the second example, the number of notches 70 is three or more.
-The pouch 1 may have a form in which the fastener 30 is omitted. In this modified example, the accommodation space 13 constitutes the entire space surrounded by the inner surfaces of the seats 11 and 12.

The form of the pouch 1 can be arbitrarily changed. In one example, pouch 1 is a standing pouch.

1: Pouch 10: Bag 10A: Closing piece 11: First sheet 12: Second sheet 14: Opening 20: Sealing part 40: Guide part 50: First guide wire 51: First outer guide wire 52 : First inner guide wire 60, 160: Second guide wire 61: Second outer guide wire 62: Second inner guide wire 70: Notch

Claims (5)

The first sheet,
A second sheet facing the first sheet;
A seal portion for joining the first sheet and the second sheet so that a bag is constituted by the first sheet and the second sheet,
A guide portion provided on the first sheet and the second sheet so that a closing piece including a part of the sealing portion can be separated from the bag to form an opening in the bag ;
Including a notch provided in the seal portion,
The guide portion includes a plurality of first guide lines provided on the first sheet and a plurality of second guide lines provided on the second sheet,
The plurality of first guide lines are provided on the closing piece included in the closing piece, the wavy line-shaped first outer guide line being provided at a position close to the seal portion, and the first outer guide line being closer to the closing piece. Including a wavy line-shaped first inner guide line provided at a location distant from the included seal portion,
The plurality of second guide wires are provided on the closing piece included in the closing piece, the wavy line-shaped second outer guide wire provided at a position near the seal portion, and the second outer guide wire being closer to the closing piece than the second outer guide wire. Including a wavy line-shaped second inner guide line provided at a position apart from the included seal portion,
The second outer guide line intersects the first outer guide line so as not to intersect the first inner guide line on the projection surface,
The second inner guide line intersects with the first inner guide line so as not to intersect with the first outer guide line on the projection plane,
The first outer guide line and the second inner guide line are arranged such that the apex of the valley of the first outer guide line and the apex of the peak of the second inner guide line are in contact with each other on the projection surface. Composed,
In the first inner guide line and the second outer guide line, the peaks of the peaks of the first inner guide line and the peaks of the valleys of the second outer guide line are in contact with each other on the projection surface, and A pouch configured such that a tip end portion of the notch is connected to a portion including a contact point between the first inner guide wire and the second outer guide wire . The guide portion is such that at least one of the inner surface of the first sheet and the inner surface of the second sheet is exposed at the opening when the closing piece is separated from the bag, and the closing piece Shape of the opening when the closing piece is separated from the bag so that the closing piece pops out toward the second sheet side, and the shape of the opening piece when the closing piece pops out toward the second sheet side. The pouch according to claim 1, wherein the pouch has a shape different from that of the opening when separated from the pouch. In addition to the notch, an additional notch provided in the seal portion is provided,
A tip portion of the additional notch is configured to connect to a portion including a contact point between the first outer guide wire and the second inner guide wire.
The pouch according to claim 1 or 2 . The phases of the first outer guide line and the first inner guide line are the same,
The second outer guide wire and the second inner guide wire have the same phase, and are different in phase from the first outer guide wire and the first inner guide wire.
The pouch according to any one of claims 1 to 3 . The pouch according to claim 4, wherein a deviation between the first outer guide line and the first inner guide line and the second outer guide line and the second inner guide line is a half cycle .

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