JPH07121743B2 - Product packaging bag - Google Patents

Description

Description: [Industrial field of use] The present invention relates to a bag that is displayed and displayed at a store in a state where products are stored.

[Conventional technology]

Conventionally, bags for displaying and displaying products in stores are
It is known that a bag is made of a synthetic resin film, and a product storage chamber having one end opened between front and back films is formed. Such a bag is provided with a sealing piece that can open and close the opening, and after the product is stored in the product storage chamber through the opening, the opening is sealed by the sealing piece. Further, a header having a hanging hole is provided on the upper part of the bag, and is provided for the convenience of hanging and displaying.

[Problems to be Solved by the Invention]

The above-mentioned known bag constitutes a front and back film by half-fold polymerizing a belt-shaped synthetic resin film, and by fusion-welding the front and back film along a direction perpendicular to the longitudinal direction of the belt, the front and back films at both edges. Is manufactured as a welded bag. Therefore, the bag has a flat sheet shape, and when a bulky product is stored, the bag is forcibly expanded according to the volume of the product. Therefore, a wrinkle due to tension is generated between the portion of the film spread by the stored product and the portion of the film that is not spread, and the appearance of the bag is unsightly.

Further, according to the known bag, when the opening is sealed with the sealing piece, the sealing piece must be bonded in a state where the opening formed between the front and back films is sealed in a straight line. However, in the state where the bulky product is stored in the bag, it is difficult to seal the opening in a straight line as described above.
There is a problem such as sticking the sealing piece with wrinkles.

[Means for Solving the Problems]

The present invention provides a product packaging bag that solves the above problems.

Therefore, the present invention is configured as the first means,
In the bag body in which the product storage chamber (7) having one end opened (14) between the front and back films (4) and (5) is formed: the opening (1)
A rigid sheet (18) covering almost the entire width of the bag is provided on at least one of the front and back films (4) and (5) so as to face 4);
The rigid sheet (18) has a belt-like body (20) that borders the opening edge of the opening (14) formed by at least one of the front and back films (4) and (5), and the body (20). And a lid portion (22) that is bendable with respect to the body portion (20) through an arcuate hinge line (21) that bulges toward the outside and that opens and closes the opening (7). It is in.

Further, the second aspect of the present invention is that a bag body in which a product storage chamber (7) having one end opened (14) between front and back films (4) and (5) is formed: at least the opening (14) ) Is provided with a rigid sheet (18b) (18c) that covers almost the entire width of the bag on one of the front and back films (4) and (5), and the other of the front and back films (4) and (5) extends from the film. The sealing pieces (36) (36a) are provided; the rigid sheets (18b) (18c) form the body parts (20b) (20c) forming at least a part of the product storage chamber (7).
And the hinge lines (21b) (2) with respect to the body (20b) (20c).
1c) and a lid part (22b) (22c) which is bendable through the opening (14) and can be opened and closed; the film sealing pieces (36) (36a) are openings. Adhesive means () that can be bent so as to overlap the lid portions (22b) (22c) that close the (14) and that attaches the sealing pieces (36) (36a) to the lid portions (22b) (22c). 15b) and (15c) are provided.

The present invention is configured as a third means in that the body portion (20c) of the rigid sheet (18c) in the second means is formed.
Is at least one of the front and back films (4) and (5) (5)
Is formed by a belt-shaped sheet portion that borders the opening edge of the opening (14) formed by.

Further, the fourth aspect of the present invention is that the bag body in which the product storage chamber (7) having one end opened (14) between the front and back films (4) and (5) is formed: at least the opening (14) ), A rigid sheet (18) (19) is provided on both the front and back films (4) and (5) over substantially the entire width of the bag; one rigid sheet (18) is the product storage chamber (7).
A body portion (20) constituting one side of the body, and the opening (1) that is bendable with respect to the body portion (20) via a hinge line (21).
4) is formed with a lid portion (22) that can be opened and closed, the hinge line (21) is formed in an arc shape that bulges toward the body portion (20), and the edge of the lid portion (22) ( 23) the hinge wire (2
The rigid sheet (19) is formed in an arc shape that is substantially symmetrical to that of 1); and the other rigid sheet (19) includes a body portion (24) that constitutes the other side portion of the product storage chamber (7) and the body portion (24). ) To the hinge wire (2
5) and a lid portion (22) that is foldable through the lid portion (22) that closes the opening (14) and is made to overlap with the lid portion (26), and the hinge line (25) is connected to the trunk portion (24). ) Is formed in the shape of an arc that bulges toward.

Further, the present invention is configured as a fifth means in a bag body having a product storage chamber (7) having an opening (14) at one end between front and back films (4) and (5): at least the opening (14) ), A rigid sheet (18b, 18c) is provided on one of the front and back films (4) and (5) over almost the entire width of the bag body, and at least the sealing sheet (36) is provided on the other of the front and back films facing the opening (14). , 36a); the rigid sheet (18b, 18c) is provided with respect to the body portion (20b, 20c) forming at least a part of the product storage chamber (7) and the body portion (20b, 20c). A lid portion (22b, 22c) that is bendable via a hinge line (21b, 21c) and that can open and close the opening (14) is formed, and the hinge line (21b, 21c) is connected to the body portion (20b). , 20c) and bulges toward the lid (22b, 22c).
The edge (23b, 23c) of c) is formed in an arc shape which is substantially symmetrical to the hinge line (21b, 21c); the sealing piece (36, 36a)
The point is that it is constituted by a film piece that can be overlapped with the lid portions (22b, 22c) that close the opening (14).

Furthermore, the sixth aspect of the present invention is that a bag body in which a product storage chamber (7) having one end opened (14) between the front and back films (4) and (5) is formed: at least the opening (14) ), A rigid sheet (18) is provided on at least one of the front and back films (4) and (5) over substantially the entire width of the bag; the rigid sheet (18) is the product storage chamber (7).
(20) forming at least a part of the
A lid portion (22) that is bendable with respect to 0) via a hinge line (21) and that can open and close the opening (14),
The hinge line (21) is formed in an arc shape that bulges toward the body (20).

〔Example〕

 Embodiments of the present invention will be described in detail below with reference to the drawings.

(First Embodiment) In the first embodiment of the present invention shown in FIGS. 1 to 4, the bag body 1 is a synthetic resin half-fold polymerized in the bottom portion 3 having a gusset 2 formed by folding in a V-shaped cross section. It is made up of front and back films 4 and 5. The front and back films 4 and 5 are fused and welded on both side edges 6 and 6 of the bag body 1 to form a product storage chamber 7 between the films 4 and 5. The back film 5 extends upward and is folded back with a shape-retaining sheet 8 made of a thick synthetic paper or a thick synthetic resin sheet sandwiched between the back film 5 and the back film 5. Both side edges 10, 10 of the header portion 9 are simultaneously welded and welded on the extension lines of the both side edges 6, 6 of the bag body 1 to integrate the shape-retaining sheet 8 and the film 5 covering the front and back sides thereof into a sandwich shape. There is. Preferably, the film 5 and the shape-retaining sheet 8 are welded on both front and back surfaces or one surface of the header portion 9, and the welded portion 11 is shown. A hanging hole 12 is formed in the header portion 9.

The front film 4 is provided with an extension film portion 13 extended to the vicinity of the header portion 9, and the extension film portion 13 is provided.
An opening 14 of the product storage chamber 7 is formed between 13 and the back film 5. On the outer surface of the extension film portion 13, adhesive means
15 is provided, and the adhesion means 15 is composed of an adhesive layer 16 such as a double-sided adhesive tape and a peelable release film 17 that covers the adhesive layer 16.

Rigid sheets 18 and 19 facing the opening 14 are provided on the front and back films 4 and 5, respectively. Each of these rigid sheets 18 and 19 is made of a thick synthetic resin sheet, preferably a hard synthetic resin sheet.

The first rigid sheet 18 is disposed on the inner surface of the front film 4 including the extension film portion 13 and forms a side portion of the commodity storage chamber 7, and a hinge line with respect to the body portion 20. A lid portion 22 including the extension film portion 13 that is bendable via 21 and that can open and close the opening 14 is configured. The hinge line 21 is formed from the outer surface of the front film 4 to the first rigid sheet 18
The narrow groove formed to reach the side edges 6 of the bag body 1,
It is formed so as to represent an arc-shaped line bulging from 6 toward the body portion 20. An edge 23 of the lid portion 22 welds the edges of both the extension film portion 13 of the surface film 4 and the first rigid sheet 18, and is formed in an arc shape which is substantially symmetrical to the hinge line 21. ing. That is, the end edge 23 represents an arc-shaped line that bulges upward from both side edges 6 of the bag body 1.

The second rigid sheet 19 is disposed on the inner surface of the back film 5, and is a body portion 24 that forms a part of the product storage chamber 7, and is bendable with respect to the body portion 24 via a hinge line 25. And the sealing portion 26. The hinge line 25 forms a narrow groove formed from the outer surface of the back film 5 to the second rigid sheet 19, and has an arc shape that bulges from both side edges 6, 6 of the bag body 1 toward the body portion 24. It is formed to represent a line. That is, the hinge line 25 has the same shape or a shape similar to the hinge line 21 of the first rigid sheet 18 described above. The sealing part
The edge of 26 is formed in an arc shape that is substantially symmetrical to the hinge line 25. That is, the edge of the sealing portion 26 has the same shape or a shape similar to the edge 23 of the lid portion 22.

The first and second rigid sheets 18 and 19 are the side edges 6 of the bag body 1,
When 6 is melted and welded, it is simultaneously melted and welded while being interposed between the front and back films 4 and 5. Therefore, at the side edges 6 and 6, the body portions 20 and 24 of the rigid sheets 18 and 19 are
Are welded to each other and the front and back films 4, 5
It is welded and integrated into a sandwich.

According to the bag body 1 of the first embodiment, after the product is inserted from the opening 14 and stored in the product storage chamber 7, as shown in FIGS. 3 and 4, the lid portion 22 and the sealing portion 26 are respectively opened. Hinge wire 2
The opening 14 is sealed by bending along the lines 1 and 25.

First, when the lid portion 22 of the first rigid sheet 18 is folded horizontally along the hinge line 21, the lid portion 22 pushes the front and back films 4 and 5 and expands the product storage chamber 7. At this time, the body portion 20 of the first rigid sheet 18 is curved outward along the arcuate line of the hinge line 21, and acts so as to bulge the entire front film 4 in an arc shape. Further, the arcuate edge 23 of the lid portion 22 spreads the second rigid sheet 19 and causes the second rigid sheet 19 and the back film 5 to bulge in an arc shape.

Next, when the sealing portion 26 of the second rigid sheet 19 is bent horizontally along the hinge line 25, the sealing portion 26 is superposed on the lid portion 22. At this time, the body portion 24 of the second rigid sheet 19 is curved outward along the arc-shaped line of the hinge line 25, and acts so as to bulge the entire back film 5 in an arc shape.

As a result, the bag body 1 expands the gusset 2 of the bottom portion 3 while curving the front and back films 4 and 5 outward, and expands the gusset 2 of the bottom portion 3 to store the product in the product storage chamber 7 with a margin. The sealing part 26 is bonded to the lid part 22 by the bonding means 15. That is,
As described above, when the sealing portion 26 is superposed on the lid portion 22, the release film 17 is peeled off to expose the adhesive layer 16, and the sealing portion 26 is polymerized and pressed onto the adhesive layer 16.

(Example of Manufacturing Method of First Embodiment) FIGS. 5 to 10 show a method for manufacturing the bag according to the first embodiment.

First, as shown in FIG. 5, a belt-shaped synthetic resin film 10
One side edge portion of 0 is folded back, and the tape-shaped shape retention sheet 108 is inserted into the folded back portion 109. In this state, the film 100 and the sheet 108 are conveyed in the longitudinal direction by the conveyor, and the folded portion 109 and the overlapped portion of the sheet 108 are passed between the pair of heated welding rollers 127 and 128, and the overlapped portion 11 is welded.
Melt and integrate by 1.

Next, as shown in FIG. 6, the film 100 is folded back through the V-shaped folded portion 102, the film portion extending from the folded portion 109 is used as a back film 105, and the film portion folded back in a half-fold shape is used as a front film. 104. At this time, the extended end portion 113 of the front film 104 faces the folded-back portion 109. In this facing portion, the first strip-shaped rigid sheet 118 is overlaid inside the extended end 113 of the front film 104, and the second strip-shaped rigid sheet 119 is overlaid inside the back film 105. In addition, an adhesive means 115 composed of a double-sided adhesive tape covered with a release film is fixed in advance in the longitudinal direction outside the end of the front film 104. The composites of these films and sheets are intermittently transferred in the longitudinal direction of the strip, and the composites are fused at once by the fusing and welding blade 106 as shown in FIG. Therefore, due to this fusing,
A bag semi-finished product 101 as shown is obtained.

After that, the semi-finished product 101 is melt-fused with the first and second rigid sheets 118 and 119 by a fusing blade 123 having an arc-shaped blade as shown in FIG. At the time of this fusing, as shown in FIGS. 7 and 8, a protective plate 129 is inserted between the back film 105 and the second rigid sheet 119, and the protective plate 129 is inserted.
A second rigid sheet 119, a first rigid sheet 118, an extension end 113 of the front film, and an adhesive means 11 which are sequentially laminated on 129.
Fuse 5 at once. At this time, as shown in Fig. 8, the facing portions of the first and second rigid sheets 118 and 119 are previously coated with a deposition inhibitor 130 such as paint or ink by printing or the like. Therefore, due to the fusing of the fusing blade 123, the first and second rigid sheets 118 and 119 are respectively fused in an arc shape along the shape of the fusing blade 123, but are not welded to each other at the fusing point. Instead, they are separated and independent. On the other hand, the extended end portion 113 of the front film 104 and the first rigid sheet 11
8 are welded to each other at the portions which are blown by the fusing blade 123. In addition, the semi-finished product 101 is melted by the melting blade 123.
The scraps separated from are discarded.

Further, as shown in FIG. 7, a tubular fusing blade 11 having an annular blade is provided.
2, the hole 12 is formed at the location of the header portion.

Further, as shown in Fig. 9 and Fig. 10, semi-finished products
A pair of melting blades 121 and 125 arranged above and below with 101 in between are used. Each of the melting blades 121 and 125 has an arc-shaped blade. As shown in the tenth illustration, the upper melting blade 121
Is the first rigid sheet from the extended end 113 of the front film 104.
The hinge wire 21 is formed by cutting into 118. Lower melting blade 1
25, the hinge film 25 is formed by biting from the back film 105 into the second rigid sheet 119.

By completing the above steps, as shown in FIG. 9, the bag 1 of the first embodiment described above is completed.

The steps sequentially shown in FIG. 5 to FIG. 10 are not limited or restricted in the order, and the order can be changed appropriately.

(Second to Fourth Embodiments) The second embodiment shown in FIG. 11 has basically the same configuration as that of the first embodiment described above, and the shape-retaining sheet 8 forming the header portion 9 is It is characterized in that an extended shape-retaining portion 31 extending downward beyond the second rigid sheet 19 is provided. Therefore, according to this second embodiment, when the first and second rigid sheets 18 and 19 are bent along the hinge lines 21 and 25, the shape-retaining sheet 8 includes the extended shape-retaining portion 31 as a whole. Is curved in an arc shape and serves to keep the product storage chamber 7 in a cylindrical shape. Other configurations are almost the same as those in the first embodiment.

The third embodiment shown in FIG. 12 has basically the same configuration as that of the first embodiment, and the first and second rigid sheets 18 and 19 are provided.
However, it is characterized in that extension trunks 32 and 33 are provided by extending the respective trunks 20 and 24 downward. Therefore, according to the third embodiment, when the lid portion 22 and the sealing portion 26 are bent along the hinge lines 21 and 25, respectively, the body portions 20 and 24 that are curved in an arc shape are simultaneously formed in the extension body. The parts 32 and 33 are curved in an arc shape, which serves to keep the product storage chamber 7 in a cylindrical shape as a whole. Other configurations are the same as those in the first embodiment.

In the fourth embodiment shown in FIG. 13, the body portions of the first rigid sheet 18 and the second rigid sheet 19 are provided at the upper ends of the front film 4 and the back film 5 for forming the product storage chamber 7, respectively.
20 and 24 are fixed. The structures of the first and second rigid sheets 18 and 19 are almost the same as those in the first embodiment. However, it does not have the header portion as in the first embodiment. However, also in the fourth embodiment, when the lid portion 22 of the first rigid sheet 18 is bent along the hinge line 21,
The body portion 20 bulges in an arcuate shape along the arcuate line of the hinge line 21 while bulging the surface film 4, and the arcuate edge 23 of the lid portion 22 arcuately forms the second rigid sheet 19. Spread to.
Then, when the sealing portion 26 of the second rigid sheet 19 is bent along the hinge line 25, the back film 5 swells while the body portion 24 arches along the arc line of the hinge line 25. To do.
Therefore, the same bulging bag as in the first embodiment can be obtained.

(Fifth Embodiment) In the fifth embodiment shown in FIGS. 14 to 16, the shape-retaining sheet 8 constituting the header portion 9 has an extension portion 34 extending to the bottom portion 3 of the bag body 1. The feature is that the extension portion 34 itself is provided with a sealing portion 26a by punching, and a downward arcuate hinge line 25a for making the sealing portion 26a bendable is formed on the extension portion 34 itself. Have. That is, as shown in FIG.
The sealing portion 26a is formed by fusing and cutting with an arc-shaped fusing blade leaving 35. On the front film 4,
A rigid sheet 18a is provided, and this rigid sheet 18a
The same as the first rigid sheet in the first embodiment, the body portion 20a, the hinge line 21a that draws an arc-shaped line toward the body portion, the end that curves the hinge line in a substantially symmetrical arc shape. A lid 22a having a rim 23a is provided, and an adhesive means 15a is provided outside the lid 22a. Therefore, according to the fifth embodiment, after the lid portion 22a is bent along the hinge line 21a, the lid portion 22a is folded along the hinge line 25a and overlapped on the lid portion 22a. It is formed by a part of the sheet 8.

(Sixth Embodiment) In a sixth embodiment shown in FIGS. 17 and 18, the front film 4 is provided with the same rigid sheet 18b as that of the third embodiment (FIG. 12). That is, the rigid sheet 18b forms a downward arcuate hinge line 21b, a portion below the hinge line 21b is a body portion 20b, and a portion above the hinge line 21b is a lid portion 22b. An end edge 23b of the lid portion 22b is formed as an arc edge directed upward. An adhesive means 15b is provided on the outside of the lid portion 22b. On the other hand, the back film 5 is not provided with the second rigid sheet as in the first embodiment (Fig. 2) and the third embodiment (Fig. 12). Instead, the back film 5 extends downward from the header portion 9 and includes a sealing piece 36 extending into the opening 14. The sealing piece 36 represents a welding line 37 which is welded to the back film 5 at the position facing the opening 14 over the entire width of the bag. Therefore, the sealing piece 36
Is bent with the welding line 37 as a hinge fulcrum.

Therefore, according to the sixth embodiment, the sealing piece 36 is attached to the welding line 37.
With the part folded back above the opening 14 with the fulcrum as a fulcrum, the lid 22b
Is bent through the hinge line 21b, the body film 24b bulges along the arc line of the hinge line 21b while bending in a bow shape as shown in FIG. Also, the lid 22
Since the arcuate edge 23b of b pushes the back film 5,
The back film 5 bulges while curving in an arc shape. After that, the sealing piece 36 may be superposed on the horizontally arranged lid portion 22b, and the sealing piece 36 may be bonded to the bonding means 15b.

(Seventh Embodiment) A seventh embodiment shown in FIGS. 19 and 20 is an opening 14 of the bag body 1.
A rigid sheet 18c is provided on the back film 5 to face.
The rigid sheet 18c has the same structure as the second rigid sheet as shown in the first embodiment (Fig. 2) and the second embodiment (Fig. 11), but in this embodiment, Rigid sheet 18
The lid is formed by c. Therefore, the rigid sheet 18c
Has an arcuate hinge line 21c that curves downward, and a portion below the hinge line 21c is a body portion 20c.
A portion above the lid 22c is a lid 22c, and an edge 23c of the lid 22c.
Is formed on the arc edge that faces upward.

On the other hand, the surface film 4 is provided with a sealing piece 36a extending above the opening 14, and the body portion 20c is formed on the inner surface of the surface film 4.
A tape-shaped rigid sheet 38 is provided to face with. still,
Adhesive means 15c is provided on the inner surface of the sealing piece 36a.

Therefore, according to the seventh embodiment, the lid 22c is attached to the hinge line 2
If it is bent through 1c, as shown in Fig. 20, the hinge line
The back film 5 is bulged while the body portion 24c is curved in an arc along the arc line of 21c. Further, since the arc-shaped edge 23c of the lid portion 22c pushes the front film 4 wide, the front film 4
Bulges while curving in a bow shape. Then, the sealing piece 36a is superposed on the horizontally arranged lid portion 22c. At this time, the sealing piece 36a is bent along the upper edge of the tape-shaped rigid sheet 38. Therefore, the bonding means 15c of the sealing piece 36a may be bonded to the lid portion 22c.

(Eighth Embodiment) The eighth embodiment shown in FIGS. 21 and 22 is basically the same as the fourth embodiment (FIG. 13). That is, the front and back films 4 and 5 (only the front film is shown in the drawing) are provided with the first and second rigid sheets 18d and 19d, respectively, and both the sheets have a downward arcuate hinge line. twenty one
d and 25d are provided. However, in the eighth embodiment, the first rigid sheet 18d has a half lid portion 22d as a portion above the hinge line 21d, and the end edge of the half lid portion 22d forms a straight line extending in the width direction of the bag. Is forming. Further, the second rigid sheet 19d has a half lid portion 22e at a portion above the hinge line 25d, and an end edge of the half lid portion 22e is formed in a straight line extending in the width direction of the bag. A film piece 39 extending upward is provided on the one half lid portion 22e, and an adhesive means 15d is provided on the film piece 39.

According to this eighth embodiment, the first and second rigid sheets 18
Connect the half lids 22d and 22e of d and 19d to the hinge lines 21d and 25d, respectively.
When bent along, the rigid sheets 18d and 19d are curved in an arc shape along the arc-shaped lines of the hinge lines 21d and 25d, and the front and back films 4 and 5 are swollen. Therefore, the end edges of the pair of semi-covers 22d and 22e may be brought into contact with each other, and the bonding means 15d of the film piece 39 may be bonded to the semi-cover 22d.

(Other Examples) It goes without saying that the present invention is not limited to the above examples,
Various modifications can be made based on the description of the claims.

For example, in the first to seventh embodiments described above, the edge 23 of the lid 22 is formed in a shape that bulges in an arc shape, and the hinge line 21 that allows the lid 22 to be bent is substantially symmetrical to the edge 23. Although shown as an arcuate line forming a shape, the hinge line 21 may be a straight line extending in the width direction of the bag. Even in this case,
If the end edge 23 of the lid 22 is formed into a shape that bulges in an arc,
When the lid portion 22 is bent in the horizontal direction, the lid portion 22 spreads the front and back films 4 and 5, and the straight hinge line 21 serves as a guide for bulging the rigid sheet in an arched shape. It works and is able to inflate the entire bag into a generally tubular shape.

〔The invention's effect〕

In the present invention described in any of the claims, the bag body has a flat sheet shape, but when inserting and storing the product in the bag body, the lid portion is folded through the hinge line. By bending, the front and back films are spread by the lid portion, so that the product storage chamber can be expanded and the product can be stored with a margin. At this time, since the body portion of the rigid sheet is curved outwardly in the bow shape using the hinge line as a guide, the curved body portion can be used as a skeleton to hold the film in a swollen state. As described above, wrinkles caused by tension due to local expansion are not generated, and the appearance is not unsightly, and an extremely ordered appearance can be maintained. Furthermore, according to the present invention, even when the bag is inflated, it is easy to align the sealing portion to be polymerized and bonded in a straight line, so that the sealing portion does not have wrinkles as in the past and has a beautiful appearance. It can guarantee a good adhesive sealing.

[Brief description of drawings]

FIG. 1 is a front view showing a state of a bag according to a first embodiment of the present invention before storing products, and FIG. 2 is a sectional view taken along line II-II of FIG.
FIG. 3 is a front view showing the state of the bag of the same embodiment after storing the product, FIG. 4 is a sectional view taken along line IV-IV of FIG. 3, and FIG. 5 is a bag according to the first embodiment. FIG. 6 is a perspective view showing the first step of the method, FIG. 6 is a perspective view showing the second step of the method, FIG. 7 is a perspective view showing the state before and after the third step of the method, and FIG. 8 is the same. An enlarged vertical cross-sectional view showing the fusing work state in the second step,
FIG. 9 is a perspective view showing the state before and after the fourth step of the method,
FIG. 10 is an enlarged vertical sectional view showing a working state of hinge line formation in the same fourth step, and FIG. 11 is a vertical sectional view showing a state of a bag according to a second embodiment of the present invention before storing a product, FIG. 12 is a vertical cross-sectional view showing the bag of the third embodiment of the present invention before the product is stored, and FIG. 13 is a longitudinal section showing the bag of the fourth embodiment of the present invention before the storage of the product. FIG. 14 is a front view showing a state before storing a product in a bag according to a fifth embodiment of the present invention.
FIG. 16 is a sectional view taken along line XV-XV in FIG. 14, FIG. 16 is a vertical sectional view showing the state of the bag after storing the product, and FIG. 17 is a bag of the sixth embodiment of the present invention before storing the product. FIG. 18 is a vertical cross-sectional view showing the state of the bag after storing the product, and FIG. 19 is a vertical sectional view showing the state of the bag of the seventh embodiment of the present invention before storing the product. FIG. 20 is a vertical cross-sectional view showing the state of the same bag after storing the product, FIG. 21 is a perspective view showing the state of the bag of the eighth embodiment of the present invention before storing the product, and FIG. [Fig. 4] is a perspective view showing a state after storing the same bag in a product. 1 ... Bag, 2 ... Gazette, 3 ... Bottom, 4 ... Front film, 5 ... Back film, 7 ... Product storage room, 8 ...
Shape-retaining sheet, 9 ... Header section, 14 ... Opening, 15 ... Adhesive means, 18, 18a, 18b, 18c ... First rigid sheet, 19
...... Second rigid sheet, 20, 20a, 20b, 20c, 24 …… Body, 21, 21a, 21b, 21c, 25, 25a …… Hinge wire, 22, 22
a, 22b, 22c ... Lid, 22d, 22e ... Half lid, 23, 23a,
23b, 23c ... edge, 26, 26a ... sealing part, 36, 36a ... sealing piece.

Claims (6)

[Claims] 1. A bag body having a product storage chamber (7) having an opening (14) at one end between front and back films (4) and (5): Front and back films (4) and (5) facing said opening (14). ) At least one of the rigid sheets (1
8) is provided; the rigid sheet (18) includes a band-shaped body (20) that borders the opening edge of the opening (14) formed by at least one of the front and back films (4) and (5), and the body. A lid portion (22) which is bendable with respect to the body portion (20) through an arcuate hinge wire (21) which bulges toward the portion (20) and which can open and close the opening (7). A product packaging bag characterized by being configured. 2. A bag body having a product storage chamber (7) having an opening (14) at one end between front and back films (4) and (5): Front and back film (4) facing at least said opening (14).
(5) On one side, a rigid sheet (18
b) (18c) and front and back films (4) (5)
On the other side, a film sealing piece (3
6) (36a) is provided; the rigid sheets (18b) and (18c) form a body portion (20b) (20c) that constitutes at least a part of the product storage chamber (7).
And the hinge lines (21b) (2) with respect to the body (20b) (20c).
1c) and a lid portion (22b) (22c) which is freely bendable via the opening (14) to open and close; and the film sealing pieces (36) (36a) are openings. (14)
The lids (22b) and (22c), which are closed, are foldable so as to overlap with the lids (22b) and (22c).
A product packaging bag, characterized in that it is provided with adhesive means (15b) (15c) for adhering to c). 3. A belt-shaped sheet in which a body portion (20c) of a rigid sheet (18c) borders an opening edge of the opening (14) formed by at least one of the front and back films (4) and (5). A second aspect of the present invention, characterized in that
Item packaging bag described in paragraph. 4. A bag body having a product storage chamber (7) having an opening (14) at one end between front and back films (4) and (5): Front and back film (4) facing at least said opening (14).
Rigid sheet (1
8) and (19) are provided; one rigid sheet (18) includes a body portion (20) forming one side of the product storage chamber (7) and a hinge line () for the body portion (20). A lid portion (22) that is bendable through the opening (14) and that can open and close the opening (14), and the hinge line (21) is bulged toward the body portion (20). And the edge (23) of the lid (22) is formed in an arc shape that is substantially symmetrical to the hinge line (21); the other rigid sheet (19) is the product storage chamber (7). ) A body portion (24) that constitutes the other side portion, and a lid portion (22) that is bendable with respect to the body portion (24) via a hinge line (25) and that closes the opening (14). And a hinged part (25) in the shape of an arc that bulges toward the body (24). 5. A bag body having a product storage chamber (7) having one end opening (14) between front and back films (4) and (5): Front and back films (4) facing at least the opening (14).
(5) On one side, a rigid sheet (18
b, 18c) and a sealing piece (36, 36a) is provided on the other side of the front and back films facing at least the opening (14); the rigid sheet (18b, 18c) is the product storage chamber (7).
(20b, 20c) forming at least a part of the body, and the opening (14) can be opened and closed by bending the body (20b, 20c) via hinge lines (21b, 21c) Lid part (22
b, 22c), and the hinge line (21b, 21c) is formed in an arc shape that bulges toward the body (20b, 20c), and the edge (23b, 22c) of the lid (22b, 22c). 23c) is formed in an arc shape that is substantially symmetrical to the hinge line (21b, 21c); the sealing piece (36, 36a) is formed on the lid portion (22b, 22c) that closes the opening (14). A product packaging bag comprising a film piece that can be polymerized. 6. A bag body having a product storage chamber (7) having an opening (14) at one end between front and back films (4) and (5): Front and back films (4) facing at least the opening (14).
A rigid sheet (18) is provided on at least one side of (5) over substantially the entire width of the bag body; the rigid sheet (18) includes a body portion (20) forming at least a part of the product storage chamber (7); A lid portion (22) that is bendable with respect to the body portion (20) via a hinge line (21) and that can open and close the opening (14) is formed, and the hinge line (21) is attached to the body portion (20). A product packaging bag, which is formed in an arc shape that bulges toward the portion (20).