JP5977930B2 - Fitting tool and bag with fitting tool - Google Patents

Description

  The present invention relates to a fitting tool and a bag body with a fitting tool.

In various fields such as food and medicine, a bag body with a fitting tool to which a fitting tool for opening and closing the opening of the bag body is attached is widely used. As a bag body with a fitting tool, for example, a bag body 101 with a fitting tool exemplified in FIG. 9 (hereinafter referred to as “bag body 101”) is known (for example, Patent Documents 1 and 2).
The bag body 101 includes a bag main body 120 for storing contents, which is formed into a bag shape by combining film materials 121 and 122, and a fitting tool 110 attached to the inner surface of the bag main body 120 in the vicinity of the opening 123. The fitting tool 110 includes a male fitting portion 113 and a female fitting portion 114 that is detachably fitted to the male fitting portion 113 on each of the pair of belt-like base materials 111 and 112. It is provided along the longitudinal direction of the materials 111 and 112. The male fitting portion 113 includes a trunk portion 113a that rises from the base material 111, and a head portion 113b that is larger than the trunk portion 113a formed at the distal end portion of the trunk portion 113a. The female fitting portion 114 includes arm portions 114a and 114b that rise in an arc from the base material 112, and a concave portion 114c is formed by the arm portions 114a and 114b. In the fitting tool 110, the base material 111 is attached to the inner surface of the film material 121 of the bag body 120, and the base material 112 is attached to the inner surface of the film material 122 of the bag body, and the male fitting portion 113 and the female fitting portion By attaching and detaching 114, the opening 123 of the bag body 101 can be repeatedly opened and closed.

  However, in the bag body 101, when the internal pressure of the bag body 120 increases, such as when there are many contents to be stored in the bag body 120, as shown in FIG. By expanding, the contents side of the base materials 111 and 112 of the fitting tool 101 are also expanded. At this time, the trunk portion 113a of the male fitting portion 113 falls to the opening 123 side, whereby the arm portion 114a on the opening 123 side in the female fitting portion 114 is pushed down, and the concave portion 114c is expanded. Therefore, the male side fitting part 113 becomes easy to detach | leave from the female side fitting part 114, and the bag body 101 may open.

As a bag body with a fitting tool that can prevent the fitting tool from opening from the contents side, for example, a bag body 102 with a fitting tool exemplified in FIG. 11 (hereinafter referred to as “bag body 102”) is known. (For example, Patent Documents 3 and 4). In the bag body 102, the same parts as those of the bag body 101 are denoted by the same reference numerals, and description thereof is omitted.
The bag body 102 is the same as the bag body 101 except that the bag body 102 has a fitting tool 110A having base materials 111A and 112A instead of the base materials 111 and 112. The bases 111A and 112A are provided with recesses 115 and 116 along the longitudinal direction at portions corresponding to the male fitting portion 113 and the female fitting portion 114 on the outer surface side. That is, in the fitting tool 110 </ b> A, the concave portions 115 and 116 of the base materials 111 </ b> A and 1112 </ b> A are not welded to the film materials 121 and 122 of the bag body 120. Therefore, the concave portions 115 and 116 of the base materials 111 </ b> A and 112 </ b> A in the fitting tool 110 </ b> A are not easily affected by the movement of the film materials 121 and 122 of the bag body 120. Thereby, even if the content side of the film materials 121 and 122 spreads, the movement of the concave portions 115 and 116 of the base materials 111A and 112A in the fitting tool 110A is reduced, and the male fitting portion 113 and the female fitting are reduced. It becomes easy to maintain the fitting form of the joining part 114, and it is suppressed that a bag body opens.
However, even in the bag body 102, the effect of suppressing the fitting tool 110A from opening from the contents side is not yet sufficient, and further performance improvement is desired.

Japanese Patent Laid-Open No. 10-264946 Japanese Patent No. 3529503 JP-A-4-339768 JP-A-56-14536

  The present invention is a fitting that is attached to a bag body and seals the opening of the bag body so as to be openable and closable, and can be prevented from opening from the contents side even when the internal pressure of the bag body increases, and the fitting An object is to provide a bag body with a fitting tool provided with the fitting tool.

In the fitting of the present invention, the male side fitting part of the ridge and the female side fitting part that is detachably fitted to the male side fitting part are respectively formed on the inner surfaces of the pair of strip-like base materials. It is a fitting that is provided along the longitudinal direction of the material and is attached to the inner surface of the bag body that accommodates the contents, wherein the female-side fitting portion has a recess into which the male-side fitting portion is fitted. Forming a first arm portion which becomes an opening side when attached to the bag body and a second arm portion which becomes a content side when attached to the bag body, The second arm of the head of the male fitting portion when the height is higher than the height of the first arm portion, in a fitted state, and when the pair of base materials are in a parallel state The part side is not in contact with the tip of the second arm part.
Moreover, the fitting tool of this invention is the said 1st arm part of the said female side fitting part fitted by the said male side fitting part on the inner surface of the base material in which the said male side fitting part was provided. It is preferable that a protrusion that contacts the outer surface of the first arm portion is provided when the arm falls to the outside.
Moreover, it is preferable that the groove | channel is formed in the part corresponding to the said male side fitting part and the female side fitting part in the at least one outer surface side of a pair of said base material along a longitudinal direction.

  Moreover, the bag body with a fitting tool of this invention comprises the bag main body which accommodates the contents, and the fitting tool of this invention attached to the inner surface of this bag main body, The said fitting tool is said 2nd. The arm portion is attached so as to be on the contents side of the bag body.

The fitting tool of the present invention is a fitting tool that is attached to the bag body and seals the opening of the bag body so as to be freely opened and closed, and can be prevented from opening from the contents side even when the internal pressure of the bag body increases.
Moreover, the bag body with a fitting tool of the present invention is difficult to open from the contents side even if the internal pressure of the bag body is increased.

It is sectional drawing which showed an example of the fitting tool of this invention. It is the front view which showed an example of the bag body with a fitting tool of this invention. It is sectional drawing when the bag body with a fitting tool of FIG. 2 is cut | disconnected by straight line I-I '. It is sectional drawing which showed a mode that the bag body with a fitting tool of FIG. 2 was opened. It is sectional drawing which showed a mode that the contents side of the bag body with a fitting tool of FIG. 4 expanded. It is sectional drawing which showed the other example of the fitting tool of this invention. It is sectional drawing which showed a mode that the content side of the bag body with a fitting tool which attached the fitting tool of FIG. 6 expanded. It is sectional drawing which showed the other example of the fitting tool of this invention. It is sectional drawing which showed an example of the conventional bag body with a fitting tool. It is sectional drawing which showed a mode that the contents side of the bag body with a fitting tool of FIG. 9 expanded. It is sectional drawing which showed an example of the conventional bag body with a fitting tool.

Hereinafter, an example of a fitting tool of the present invention and a bag body with a fitting tool to which the fitting tool is attached will be described in detail.
[First Embodiment]
(Fitting tool)
FIG. 1 is a cross-sectional view of the fitting 10 of the present embodiment when cut along the width direction. The same applies to the cross-sectional views of the other fittings.
As shown in FIG. 1, the fitting 10 of the present embodiment has a pair of strip-shaped first base material 11 and second base material 12.
On the inner surface 11 a of the first base material 11, a male-side fitting portion 13 of a ridge is provided along the longitudinal direction of the first base material 11. On the inner surface 12 a of the second base material 12, a female side fitting portion 14 that is detachably fitted to the male side fitting portion 13 is provided along the longitudinal direction of the second base material 12. The female side fitting part 14 has the 1st arm part 14a and the 2nd arm part 14b which form the recessed part 14c in which the male side fitting part 13 fits.
The fitting 10 is attached to the inner surface of the bag body with the second arm portion 14b side being the content side of the bag body. That is, the side edges 11c and 12c on the first arm portion 14a side of the first base material 11 and the second base material 12 are the opening sides formed in the bag body, and the first base material 11 and the second base material 11 are formed. The material 12 is attached to the bag body such that the side ends 11d, 12d on the second arm portion 14b side of the material 12 are on the contents side of the bag body.

The 1st base material 11 is not specifically limited, What is used for the base material of a well-known fitting tool can be used, and the base material which consists of laminated films is preferable. Examples of the first base material 11 made of a laminated film include a film in which a heat resistant layer and a heat seal layer are laminated from the inner surface 11a side. The first substrate 11 may have a barrier layer between the heat-resistant layer and the heat seal layer.
Examples of the material for the heat-resistant layer include biaxially stretched nylon and biaxially stretched polypropylene.
Examples of the material for the heat seal layer include linear low density polyethylene, unstretched polypropylene, ethylene-vinyl acetate copolymer, and ionomer.
Examples of the material for the barrier layer include polyvinyl alcohol.

The 1st base material 11 may consist of 1 type of resin, and may consist of the resin composition containing 2 or more types of resin. Moreover, well-known additives, such as a stabilizer, antioxidant, a lubricant, an antistatic agent, and a coloring agent, may be added as needed.
Moreover, the 1st base material 11 is not limited to the base material which consists of laminated films, The base material which consists of a single layer film may be sufficient.
As the 2nd base material 12, the same base material as the 1st base material 11 is mentioned, and a desirable mode is also the same.

  The male-side fitting portion 13 has a trunk portion 13a that rises from the inner surface 11a of the first base member 11, and a head portion 13b that is provided at the distal end portion of the trunk portion 13a and has a substantially semicircular cross section larger than the trunk portion 13a. ing. The female-side fitting portion 14 includes a first arm portion 14a and a second arm portion 14b that rise in an arc shape in cross section from the inner surface 12a of the second base member 12, and the first arm portion 14a and the second arm portion 14b. A concave portion 14c is formed by the arm portion 14b. The male side fitting part 13 and the female side fitting part 14 can be detachably fitted by fitting the head part 13b of the male side fitting part 13 into the concave part 14c of the female side fitting part 14. ing.

The height of the 2nd arm part 14b of the female side fitting part 14 is higher than the height of the 1st arm part 14a. Here, the heights of the first arm portion 14 a and the second arm portion 14 b mean the height from the inner surface 12 a of the second substrate 12. In the fitting 10, when the first base material 11 and the second base material 12 are parallel with the male side fitting part 13 and the female side fitting part 14 being fitted, Even if the first arm portion 14a side of the head portion 13b in the side fitting portion 13 is in contact with the tip portion of the first arm portion 14a, the second arm portion 14b of the head portion 13b in the male side fitting portion 13 is used. The side is not in contact with the tip of the second arm portion 14b. That is, in the state where the male side fitting part 13 and the female side fitting part 14 are fitted, a space exists on the distal end side of the second arm part 14 b in the concave part 14 c of the female side fitting part 14.
When the height of the second arm portion 14b is higher than the height of the first arm portion 14a, when the second arm portion 14b side of the first base material 11 and the second base material 12 is opened, The first arm portion 14 a of the female side fitting portion 14 is suppressed from being expanded by the trunk portion 13 a of the male side fitting portion 13, and the male side fitting portion 13 is detached from the female side fitting portion 14. Is suppressed. Factors for obtaining this effect will be described later.

  The ratio of the height of the second arm portion 14b to the height of the first arm portion 14a is such that when the second arm portion 14b side of the first base material 11 and the second base material 12 is opened, 1.1 or more are preferable and 1.2 or more are more preferable from the point which suppresses that the side fitting part 13 detach | leaves from the female side fitting part 14. FIG. Further, the ratio of the height of the second arm portion 14b to the height of the first arm portion 14a is as follows: 1. The male side fitting portion 13 and the female side fitting portion 14 can be sufficiently fitted. 5 or less is preferable and 1.4 or less is more preferable.

The male side fitting part 13 may have any cross-sectional shape as long as the male side fitting part 13 and the female side fitting part 14 can be repeatedly opened and closed by opening and closing the opening formed in the bag body. Can be adopted.
The cross-sectional shape of the female fitting portion 14 is such that the male fitting portion 13 and the female fitting portion 14 are attached and detached except that the height of the second arm portion 14b is higher than the height of the first arm portion 14a. And what is necessary is just to be able to repeat opening and closing of the opening formed in the bag body. For example, the female-side fitting portion 14 of this example has a form in which the first arm portion 14a and the second arm portion 14b are directly raised from the inner surface 12a of the second base material 12, but the second base The female side fitting part of the form which has a neck part which stands | starts up from the inner surface 12a of the material 12, and a 1st arm part and a 2nd arm part stand up from this neck part in circular arc shape may be sufficient.
As the material of the male side fitting part 13 and the female side fitting part 14, the same material as the 1st base material 11 and the 2nd base material 12 can be used.

(Bag with fitting)
Hereinafter, as an example of a bag body with a fitting tool of the present invention, a bag body with a fitting tool 1 (hereinafter referred to as “bag body 1”) to which the fitting tool 10 is attached will be described.
As shown in FIGS. 2 and 3, the bag body 1 according to the present embodiment is attached along the lateral direction to the bag body 20 in a sealed state for containing contents and the inner surface of the upper portion in the bag body 20. The fitting tool 10 is provided.
The bag main body 20 is formed by superimposing the first film material 21 and the second film material 22 and heat-sealing all the peripheral portions 23 thereof, and is in a sealed state. Moreover, the cutting auxiliary line 24 is provided in the upper side rather than the fitting tool 10 in the bag main body 20 along the horizontal direction, and the notch 25 is formed in the edge part. That is, the bag body 1 can cut | disconnect the 1st film material 21 and the 2nd film material 22 of the bag main body 20 along the auxiliary cutting line 24 from the notch 25, and can open an upper part. The opened bag body 1 can freely open and close the formed opening by attaching and detaching the male side fitting part 13 and the female side fitting part 14 of the fitting 10.

  The shape of the bag body 20 is rectangular in this embodiment. However, the shape of the bag body 20 is not limited to a rectangle. Further, the size of the bag body 20 is not particularly limited, and may be appropriately selected depending on the contents accommodated in the bag body 20.

The 1st film material 21 and the 2nd film material 22 which form the bag main body 20 should just be what can weld the fitting 10 by heat seal, and are the lamination | stacking which has a sealant layer and a base material layer at least from an inner surface side. A film is preferred.
Examples of the base material layer include biaxially stretched nylon and biaxially stretched polypropylene.
Examples of the sealant layer include linear low density polyethylene, unstretched polypropylene, ethylene-vinyl acetate copolymer, ionomer and the like.
The laminated film may be provided with a functional layer such as a barrier layer.
Moreover, the 1st film material 21 and the 2nd film material 22 may be a single layer film which consists only of a sealant layer.

  The fitting 10 is such that the side end 11 c side of the first base material 11 and the side end 12 c side of the second base material 12 face the upper side of the bag body 1, and the side end 11 d of the first base material 11. The side and the side end 12d side of the second base material 12 are attached to the inner surface of the bag body 20 so as to be the contents side. That is, the fitting 10 is configured so that the first arm portion 14a of the female side fitting portion 14 is on the opening side of the bag body 1 and the second arm portion 14b of the female side fitting portion 14 is on the contents side. It is attached.

  As shown in FIG. 3, the outer surface 11 b of the first base material 11 of the fitting tool 10 is welded to the first film material 21 of the bag body 20. The outer surface 12 b of the base material 12 is welded to the second film material 22 of the bag body 20.

The cutting auxiliary line 24 is a line that assists in cutting and opening the bag body 20. As the cutting auxiliary line 24, for example, from a weakened line or a perforation in which the portion of the cutting auxiliary line 24 in the first film material 21 and the second film material 22 of the bag body 20 is thinner than the other parts. And weakening lines composed of pores formed in a row. Further, the cutting auxiliary line 24 is not limited to the weakening line, and may be a line formed by printing or the like indicating a position to be cut with a scissor or a cutter.
Although the cutting auxiliary line 24 is formed along the width direction of the bag body 20 in the present embodiment, the cutting auxiliary line 24 is not limited to this form, and may be provided inclined with respect to the width direction of the bag body 20. Good.

  The shape of the notch 25 is a triangular shape in this example, but is not particularly limited, and may be a semicircular shape, a linear shape, or the like.

The bag body 1 can be opened by forming an opening 26 in the upper portion by cutting and removing the upper portion of the bag body 20 from the notch 25 along the auxiliary cutting line 24 as shown in FIG. The opening 26 formed in the bag body 1 can be opened and closed repeatedly by attaching and detaching the male side fitting part 13 and the female side fitting part 14 of the fitting 10.
The bag body 1 is attached to the bag body 20 by attaching the fitting 10 having the female fitting portion 14 in which the height of the second arm portion 14b is higher than the height of the first arm portion 14a. Even when the internal pressure of the bag body 20 is high, such as when the amount of contents to be stored in the container is large, the fitting 10 is difficult to open from the contents side. Therefore, the bag 1 can stably maintain the state in which the opening 26 is closed by the fitting 10 even when the internal pressure increases. The factors for obtaining the effect by the female-side fitting portion 14 are considered as follows.

As described above, in the bag body 101, as shown in FIG. 10, when the internal pressure of the bag main body 120 increases, the base material 111, 112 of the fitting tool 101 together with the film material 121 and the film material 122 on the contents side. The contents side of the male side fitting part 113 spreads and the trunk part 113a of the male side fitting part 113 falls into the opening 123 side. Then, since the arm portion 114a on the opening 123 side in the female fitting portion 114 is pushed down by the trunk portion 113a of the male fitting portion 113 that has fallen, the concave portion 114c is expanded and the male fitting portion 113 is fitted to the female fitting. It becomes easy to detach from the portion 114.
On the other hand, in the bag body 1, as shown in FIG. 5, the internal pressure of the bag body 20 is increased, and together with the first film material 21 and the second film material 22, the first base material of the fitting 10. When the contents side of 11 and the second base material 12 spreads, the trunk portion 13a of the male side fitting portion 13 falls to the opening 26 side as in the case of the bag body 101. However, at this time, unlike the case of the bag body 101, the female side fitting part 13 has the contents side of the head part 13 b in contact with the distal end part of the second arm part 14 b of the female side fitting part 14. The male side fitting part 13 is pulled up in the recessed part 14c of the side fitting part 14. FIG. As a result, the trunk portion 13 a of the male fitting portion 13 moves away from the first arm portion 14 a of the female fitting portion 14. Therefore, even if the head portion 13b of the male fitting portion 13 falls to the opening 26 side, the degree to which the trunk portion 13a of the male fitting portion 13 pushes down the first arm portion 14a to the opening 26 side is small. The spread of the concave portion 14c of the female side fitting portion 14 can be reduced. Therefore, even if the internal pressure of the bag main body 20 is increased, the male side fitting portion 13 is not easily detached from the female side fitting portion 14, and the bag body 1 can be prevented from opening.

[Other Embodiments]
The fitting tool of the present invention is not limited to the fitting tool 10. For example, the fitting tool 10A illustrated in FIG. 6 may be used. The same portions of the fitting 10A as those of the fitting 10 are denoted by the same reference numerals and description thereof is omitted. When the first arm portion 14a of the female side fitting portion 14 fitted to the male side fitting portion 13 falls on the inner surface 11a of the first base material 11 when the fitting tool 10A falls to the outside. This is the same as the fitting tool 10 except that a protrusion 15 that contacts the outer surface 14d of the arm portion 14a is provided.

  In the bag body with a fitting tool in which the fitting tool 10 </ b> A is attached to the bag body 20, as shown in FIG. 7, the internal pressure of the bag body 20 increases and the second of the first base material 11 and the second base material 12. Even if the first arm portion 14a is pushed outward (opening side) due to the opening of the arm portion 14b side (content side) and the fall of the trunk portion 13a of the male side fitting portion 13, the projection portion 15 The fall of the first arm portion 14a is suppressed. Thereby, it can reduce more stably that the recessed part 14c of the female side fitting part 14 spreads.

  The protrusion 15 may be provided so as to come into contact with the outer surface 14d of the first arm portion 14a when the first arm portion 14a of the female side fitting portion 14 falls to the outside. That is, in this example, when the male side fitting part 13 and the female side fitting part 14 are fitted in a state where the first base material 11 and the second base material 12 are parallel to each other, the protrusion 15 is a female part. Although it is not in contact with the first arm portion 14a of the side fitting portion 14, at this time, the protrusion 15 may be in contact with the outer surface of the first arm portion 14a.

The height of the protrusion 15 can be appropriately set so that the first arm portion 14a of the female fitting portion 14 contacts the outer surface 14d of the first arm portion 14a when the first arm portion 14a falls outward.
Moreover, the cross-sectional shape of the protrusion 15 is rectangular in this example. However, the cross-sectional shape of the protrusion 15 is not particularly limited, and may be a circular shape or the like. In addition, the cross-sectional shape of the projection part 15 is a cross-sectional shape when the fitting tool 10 is cut along the width direction.
Examples of the material of the protrusion 15 include the same materials as those of the first base material 11 and the second base material 12.

  The protrusion 15 may be provided continuously along the longitudinal direction of the first substrate 11 or may be provided intermittently along the longitudinal direction of the first substrate 11 in a broken line shape. . The protrusion 15 is provided continuously along the longitudinal direction of the first base material 11 from the viewpoint that it is easy to prevent the first arm portion 14 a of the female-side fitting portion 14 from falling outward and the recess 14 c from expanding. It is preferable that

Moreover, the fitting tool 10B illustrated in FIG. 8 may be sufficient as the fitting tool of this invention. About the same part as the fitting tool 10 in the fitting tool 10B, the same code | symbol is attached | subjected and description is abbreviate | omitted.
The fitting tool 10B is the same as the fitting tool 10 except that it has a first base material 11B and a second base material 12B instead of the first base material 11 and the second base material 12. The first base material 11B is provided with a recess 16 along the longitudinal direction at a portion corresponding to the male fitting portion 13 on the outer surface 11b side. In addition, the second base material 12B is provided with a recess 17 in a portion corresponding to the female side fitting portion 14 on the outer surface 12b side. That is, when the fitting tool 10B is attached to the bag body 20, the portion of the recess 16 in the first base 11B and the portion of the recess 17 in the second base 12B are the first of the bag body 20. The film material 21 and the second film material 22 are not welded.

  The fitting 10B includes a first film material 21 and a second film material of the bag body 20 in which the concave portion 16 portion of the first base material 11B and the concave portion 17 portion of the second base material 12B are formed. By being not welded to 22, the male-side fitting portion 13 and the female-side fitting portion 14 are not easily affected by the movement of the first film material 21 and the second film material 22. In particular, even if the contents side of the first film material 21 and the second film material 22 expands, the first base material 11 and the second base material 12 are recessed with the end portion 16a on the content side of the recess 16 and the concave portion 16a. By bending the end portion 17a on the content side of the strip 17 as a base point, the movement of the male side fitting portion 13 and the female side fitting portion 14 can be minimized. Thus, even if the content side of the 1st film material 21 and the 2nd film material 22 spreads, it becomes easy to maintain the fitting form of the male type fitting part 13 and the female type fitting part 14. FIG. Therefore, even if the internal pressure of the bag body 20 is increased, the male side fitting portion 13 can be further easily prevented from being detached from the female side fitting portion 14, and the bag body 1 can be more stably opened. Can be suppressed.

The recess 16 has a trunk portion 13a of the male side fitting portion 13 on the outer surface 11b of the first base material 11 because the fitting form of the male side fitting portion 13 and the female side fitting portion 14 is more easily maintained. Preferably, it is formed so as to include at least a portion corresponding to the side end 11d side (content side). Similarly, the recess 17 is formed so that at least a portion corresponding to the second arm portion 14b (content side) of the female side fitting portion 14 in the outer surface 12b of the second base material 12 is included. It is preferable.
The depths and widths of the concave stripes 16 and 17 are fitted between the male fitting portion 13 and the female fitting portion 14 even if the contents of the first film material 21 and the second film material 22 are expanded. It may be set as appropriate so that is easily maintained. As the depth of the concave stripes 16 and 17 increases and the width increases, the male-side fitting portion 13 and the female-side fitting portion 14 are less affected by the movement of the first film material 21 and the second film material 22. Become.
Moreover, the cross-sectional shape of the concave stripes 16 and 17 is a rectangular shape in this example. However, the cross-sectional shape of the concave stripes 16 and 17 is not particularly limited, and may be a circular shape, a triangular shape, or the like. In addition, the cross-sectional shape of the concave strips 16 and 17 is a cross-sectional shape when the fitting tool 10 is cut along the width direction.

  Even if the concave strips 16 and 17 are provided continuously along the longitudinal direction of the first base material 11 and the second base material 12, the longitudinal lengths of the first base material 11 and the second base material 12. It may be provided in a broken line shape intermittently along the direction. From the point that it is easy to maintain the fitting form of the male side fitting part 13 and the female side fitting part 14, the concave strips 16 and 17 are along the longitudinal direction of the 1st base material 11 and the 2nd base material 12. It is preferable that they are provided continuously.

  Further, the fitting tool of the present invention may be a fitting tool in which the recess is formed only in one of the pair of base materials. Further, the fitting is provided with the above-described protrusion on the inner surface of the base material provided with the male-side fitting portion, and the above-described recess is formed on at least one outer surface side of the pair of base materials. Also good.

Moreover, the bag body with a fitting tool of this invention should just be what attached the fitting tool of this invention, and is not limited to the said bag body 1. FIG. For example, the bag body with a fitting tool which attached the fitting tool of the other form mentioned above may be sufficient.
Moreover, the bag main body of the bag body with a fitting tool is not specifically limited, The bag main body of various forms known as a bag main body of a bag body with a fitting tool is employable. For example, the bag body 1 is a sealed bag body until it is opened using the cutting auxiliary line 24, but it may be a bag body with a fitting tool having a bag body in which an opening is formed in advance.

DESCRIPTION OF SYMBOLS 1 Bag body with fitting tool 10, 10A, 10B Fitting tool 11, 11B 1st base material 12, 12B 2nd base material 11a, 12a Inner surface 11b, 12b Outer surface 13 Male side fitting part 13a Trunk part 13b Head 14 Female side fitting part 14a 1st arm part 14b 2nd arm part 14c Recessed part 14d Outer side surface 15 Protruding part 16, 17 Concave

Claims (4)

A male-side fitting portion of a ridge and a female-side fitting portion that is detachably fitted to the male-side fitting portion along the longitudinal direction of the base material, respectively, on the inner surfaces of the pair of belt-like base materials A fitting that is provided and attached to the inner surface of the bag body that contains the contents,
The female side fitting part forms a recess into which the male side fitting part is fitted, and the first arm part which is the opening side when attached to the bag body and the contents when attached to the bag body A second arm portion that is an object side, and a height of the second arm portion is higher than a height of the first arm portion;
When in the fitted state and the pair of base materials are in a parallel state, the second arm part side of the head part of the male side fitting part is in contact with the tip part of the second arm part. Not a fitting tool.   When the first arm part of the female side fitting part fitted to the male side fitting part falls outside on the inner surface of the base material provided with the male side fitting part, the first The fitting according to claim 1, wherein a protrusion that contacts the outer surface of the arm is provided.   The groove | channel is formed in the part corresponding to the said male side fitting part and the female side fitting part in the at least one outer surface side of a pair of said base material along a longitudinal direction. Fitting tool. A bag body containing contents, and the fitting according to any one of claims 1 to 3 attached to the inner surface of the bag body,
The bag body with a fitting tool to which the said fitting tool is attached so that the said 2nd arm part may become the contents side of the said bag main body.

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