JP2022116773A - bag - Google Patents

Abstract

To provide a bag with gusset having a function of preventing a case where the bag is unintentionally folded due to a folded crease of the gusset of the bag itself without requiring a separate shape-holding tool.SOLUTION: An upper edge of a side surface panel 14 as a gusset for a bag 10 is further provided with a right-left pair of side flaps 14b each being rotationally connected. The side flaps 14b are switchable between: a standing position where the flaps stand from the upper edge of the side surface panel 14 and foldable inside along with the folding of the side surface panel 14; and a folding position where the flaps are folded from the upper edge of the side surface panel 14 and overlapped with the side surface panel 14. At the folding position of the side flap 14b, the bag 10 is not folded and an opening in a top surface thereof is held in order to prevent the side surface panel 14 from being naturally folded due to the folding crease of the folding line 14a. Since the folding is prevented by the side flap 14b which is integrally formed with the bag 10, a separate shape-holding tool is not required.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to a bag, preferably to a cold insulation bag.

So-called gusseted foldable bags are known. This type of bag includes a bottom plate, a front plate connected to the front edge of the bottom plate, a back plate connected to the rear edge of the bottom plate, and left and right edges of the bottom plate connected to each other. Left and right side plates functioning as gussets are provided, and the top surface is open.
The side plates can be folded inward along the folding lines, and the folding causes the front plate and the back plate to overlap each other, thereby folding the bag.

Such a bag with folding lines attached to the left and right side plates may be unintentionally folded as a result of being repeatedly folded along the folding lines.
When the bag is unexpectedly folded, the top opening of the bag is shrunk or closed.
For this reason, as in Patent Documents 1 and 2, a shape-retaining tool having a special shape separate from the bag is put in the bottom of the bag like an insole, and the shape-retaining tool is used to connect the front plate and the back plate. Attempts have also been made to prevent unintentional folding of the bag by interposing.

Japanese Utility Model Laid-Open No. 3-114736 Japanese Utility Model Laid-Open No. 7-20839

However, it is troublesome and costly to separately prepare a shape retainer in order to prevent the bag from being unintentionally folded.

Therefore, the problem to be solved by the present invention is that a bag having a gusset does not need to use a separate shape retainer, and the bag itself has a function to prevent the bag from being unintentionally folded due to the folding habit of the gusset. It is to have.

In order to solve the above-described problems, a bottom plate, a front plate connected to the front edge of the bottom plate, a rear plate connected to the rear edge of the bottom plate, and left and right edges of the bottom plate, respectively. The present invention relates to a collapsible invention comprising left and right side plates which are continuous and can be folded inward or outward along folding lines so that the front plate and the back plate overlap each other, and the top face is open. The bag further comprises a pair of left and right side flaps rotatably connected to the upper edges of the side plates, wherein the side flaps stand up from the upper edges of the side plates and are together when the side plates are folded. an upright position that can be folded inwardly or outwardly, and the side plate falls down from the upper edge and overlaps the side plate to prevent the side plate from being naturally folded due to the fold line of the folding line; A configuration is adopted in which switching is possible between the lying position that holds the opening of the top surface.

When the bag according to the invention is configured as described above, when it is desired to prevent the bag from being unintentionally folded, the side flaps can be rotated to the laid-down position. It becomes a resistance to additional folding. Also, when the front plate and the back plate are about to come close to each other, the side flaps will hit each other. Therefore, unintentional folding of the bag is suppressed. Since the opening of the top surface of the bag can be kept almost fully open, it is easy to put in and take out items.
Also, when the bag is to be folded, if the side flaps are rotated to the upright position, they can be folded inward or outward together with the side plates, so that folding is not obstructed.
Since the side flaps provided on the bag itself have the function of preventing folding, there is no need for a separate shape retainer. Therefore, the trouble of arranging the shape retainer in the bag can be saved, and the cost can be saved.

In the bag according to the invention, the side plate and the side flap are provided with connecting means for detachably connecting the side flap and the side plate in the folded position of the side flap. is preferred.
With this configuration, the side flaps can be fixed in a state of being overlapped with the side plate, so that the side flaps can be prevented from unintentionally rising from the side plate, and the above-described folding prevention effect can be further exhibited.

Here, hook-and-loop fasteners provided on the inner surface or the outer surface of the side plate and the side flap are preferable as the connecting means.
With this configuration, a connection means that is easy to attach and detach can be realized at a low cost, and since the hook-and-loop fastener has flexibility, if the bag itself is made of a flexible material, its flexibility is not impaired.

In the bag according to the invention, it is preferable that the width of the side flaps is equal to the width of the side plate.
With this configuration, the side flaps superimposed on the side plates can be pushed back between the front plate and the back plate more easily than when the side flaps are narrower than the side plates, and the opening of the bag can be fully opened. It becomes easier to hold.
Also, compared to the case where the side flaps are wider than the side plates, it becomes easier to insert the side flaps from the opening of the bag into the inner surface side of the side plates.

In the bag according to the invention, when the side flaps are in the upright position on the upper edges of the front plate and the rear plate, the upper edges of the front plate and the rear plate are superimposed so that the side flaps fall down. When it is in the position, the front plate and the rear plate are bent so that their upper edges face each other, whereby a configuration can be adopted in which opening/closing means for the top surface opening that can be attached to and detached from each other is provided. .
With this configuration, the opening of the bag can be closed regardless of the position of the side flaps, so that the heat retention and cold retention properties of the bag can be improved, and items stored in the bag can be prevented from popping out. can be prevented or

The bag according to the invention further comprises a belt having one end fixed to the front plate or the back plate and the other end detachably connected to the front plate or the back plate, the belt being the bag. It is preferable to employ a configuration in which the folded state can be maintained by winding between the front plate and the rear plate and connecting the other end when folding.
With this configuration, when the bag is not in use, it can be folded and restrained by the belt, thereby preventing the bag from expanding due to the resilience of the material, and maintaining a compact state.

The bag according to the invention is preferably a cold-insulating bag in which at least the bottom plate, the front plate, the back plate and the side plates are made of a material containing a heat insulating material.

Since the bag according to the invention is constructed as described above, it is not necessary to use a separate shape retainer, and the function of preventing the bag from being unintentionally folded due to the folds of the side plates as gussets is provided. It became possible to have it.

Overall perspective view of the bag Perspective view of essential parts of the bag Perspective view of essential parts of the bag (a) is a vertical cross-sectional view, (b) is a horizontal cross-sectional view, and (c) is a horizontal cross-sectional view of the main part of the bag. Overall perspective view of the folded bag Overall perspective view of the folded bag (a) is a cross-sectional view of the main part of the bag of another example, and (b) is a horizontal cross-sectional view of the bag. (a) is a vertical cross-sectional view of the main part of the bag of another example, and (b) is a horizontal cross-sectional view of the bag.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The cold insulation bag 10 of the embodiment shown in FIGS. 1 to 6 is suitable for carrying cold beverages, frozen foods, frozen desserts, and other articles stored therein while maintaining the refrigerated or frozen state. The side plate 14 functioning as a gusset is unintentionally folded along the folding line 14a by the fold line 14a, and the whole is folded to prevent the opening from being narrowed during the storage work.

As shown in FIGS. 1 to 4, the cooling bag 10 includes a rectangular bottom plate 11, a front plate 12 connected to the front edge of the bottom plate 11, and a rear plate 13 connected to the rear edge of the bottom plate 11. , a pair of left and right side plates 14 connected to the left and right edges of the bottom plate 11 .
The front edge of the bottom plate 11 and the lower edge of the front plate 12, the rear edge of the bottom plate 11 and the lower edge of the back plate 13, the right and left edges of the bottom plate 11 and the lower edges of the side plates 14 are sewn or sewn together. Concatenated. Similarly, the left and right edges of the front panel 12 and the front edges of the side panels 14, and the left and right edges of the back panel 13 and the rear edges of the side panels 14 are connected by appropriate means such as sewing.

Thus, a storage space surrounded by the bottom plate 11, the front plate 12, the rear plate 13, and the side plates 14 is formed inside the cool bag 10. - 特許庁The side plate 14 functions as a gusset, and the size of the storage space is increased compared to when the side plate 14 does not exist.
Moreover, the top surface of the cool bag 10 is open.
The upper edges of the front plate 12, the rear plate 13 and the side plates 14, the boundary between the front plate 12 and the side plates 14, the boundary between the rear plate 13 and the side plates 14, and the boundary between the bottom plate 11 and the side plates 14 are bordered. being processed.

As shown in FIGS. 1 to 6, decorative belts 12a and 13a are attached to the upper outer surface of the front plate 12 and the upper outer surface of the rear plate 13 by appropriate means such as sewing. there is
As shown in FIG. 1, both ends of a curved carrying belt 15 are similarly attached to the decorative belts 12a and 13a by sewing or the like. By gripping the handbag belt 15, the cold bag 10 can be carried.

As shown in FIGS. 1 to 3, each side plate 14 is formed with an inverted Y-shaped folding line 14a.
Along the folding line 14a, the side plate 14 can be folded and folded into the cooling bag 10 as shown in FIGS.
As a result, the front plate 12 and the rear plate 13 approach each other, and the cold bag 10 is folded.

Materials for the bottom plate 11, the front plate 12, the rear plate 13, and the side plates 14 are not particularly limited, but are preferably excellent in cold insulation and flexibility.
As an example, there is a material having a multi-layer structure in which aluminum-deposited films or aluminum foils and foamed heat insulating sheets such as foamed polyethylene are laminated in order from the outer surface to the inner surface. In addition, a resin film may be separately laminated on the inner and outer surfaces (hereinafter also referred to as a laminate layer).
The aluminum vapor-deposited film or aluminum foil can enhance reflectivity and suppress light absorption, and the heat insulating sheet can suppress heat conduction into the cooling bag 10 . Moreover, when a laminate layer is formed, it is possible to suppress damage such as tearing of the heat insulating sheet, which is inferior in strength, due to the laminate layer.
Moreover, in order to enhance the design, the outer surface and the inner surface may be printed.

Moreover, the upper part of the side plate 14 is divided as the side flap 14b. In the embodiment, the side flap 14b and the side plate 14 are integrally formed of the same sheet.
Here, the width of the side flap 14b is substantially the same as the width of the side plate 14. As shown in FIG.
Further, the tip of the side flap 14b (the upper edge of the side plate 14) and the upper edges of the front plate 12 and the rear plate 13 have substantially the same height.

As described above, the front and rear edges of the side plates 14 are connected to the front plate 12 and the rear plate 13, respectively. and the back plate 13.
Therefore, the side flap 14b is rotatable around the boundary between the side plate 14 and the main body, and can be positioned in an upright position where it stands up from the upper edge of the side plate 14 and in a side position where it falls down from the upper edge of the side plate 14. It is possible to switch between the lying positions superimposed on the inner surface of the face plate 14 .

As shown in FIGS. 2(b) to 3, when the top surface of the cooling bag 10 is open and the side flap 14b is rotated to the collapsed position, the opening can be kept fully open.
That is, as shown in FIGS. 4(b) and 4(c), the side flaps 14b overlap the side plates 14 and the side surfaces of the cooling bag 10 are doubled, thereby increasing the rigidity and increasing the resistance to folding. Also, when the front plate 12 and the rear plate 13 try to approach each other, they will bump into the side flaps 14b. In addition, when the side flap 14b and the side plate 14 overlap each other, the directions of the creases are reversed, so that the forces are balanced.
Therefore, the cooling bag 10 is prevented from being unintentionally folded and the opening being reduced.
In addition, the side flaps 14b are overlapped with the side plates 14 and the side surfaces of the cold insulating bag 10 are doubled, so that the heat insulating properties of the side surfaces are improved and a high cold insulating effect can be obtained.

A detachable connection means 14c made of hook-and-loop fastener is provided on the lower portion of the side plate 14 and the inner surface of the side flap 14b. Attachment of the connecting means 14c to the side flaps 14b and the like is performed by an appropriate means such as adhesion.
By connecting the connecting means 14c when the side flap 14b is in the laid down position, the side flap 14b is unintentionally rotated due to the resilience of the material, etc., and is displaced from the laid down position, thereby holding the opening. is prevented from decreasing.

Here, the folding line 14a of the side plate 14 is extended in the vertical direction as it is to the side flap 14b.
Therefore, as shown in FIGS. 1, 2(a), and 4(a), when the side flaps 14b are in the upright position, the side flaps 14b can be folded into the cooling bag 10 together with the side plate 14. It has become. Therefore, the existence of the side flaps 14b does not interfere with the folding of the cooling bag 10. As shown in FIG.

Upper portions of the front plate 12 and the rear plate 13 are partitioned as end flaps 12b and 13b. In the embodiment, the end flap 12b and the end flap 13b are integrally formed of the same sheet as the front plate 12 and the rear plate 13. As shown in FIG. The widths of the end flaps 12b and 13b are substantially the same as the widths of the front plate 12 and the rear plate 13, respectively.

As described above, the left and right edges of the front plate 12 and the rear plate 13 are connected to the side plates 14, respectively. , is not connected to the side plate 14 .
In other words, slits are formed between the side flap 14b and the end flaps 12b and 13b.
Therefore, the end flaps 12b and 13b can be bent around the boundary between the front plate 12 and the rear plate 13. As shown in FIG.
Therefore, as shown in FIG. 3(b), when the side flap 14b is in the folded position, the end flaps 12b and 13b can be folded so that their tip ends face each other.

Further, as shown in FIGS. 1 to 3, an openable/closable opening/closing means 16 consisting of a slide fastener is provided from the upper edge of the front plate 12 to the upper edge of the rear plate 13 . One end of the opening/closing means 16 is separated from the upper edges of the front plate 12 and the rear plate 13 .
By attaching and detaching the opening/closing means 16, the top opening of the cooling bag 10 can be opened or closed.

Here, when the side flap 14b is in the standing position as shown in FIG. will do.
As shown in FIG. 3B, when the side flap 14b is in the laid down position, the end flap 12b and the end flap 13b are bent substantially perpendicularly to the front plate 12 and the rear plate 13, and their tip portions (right The upper edges of the face plate 12 and the rear plate 13 are butted against each other and the opening is closed by the opening/closing means 16 .
In addition, although not shown in the figure, when storing articles up to the vicinity of the opening of the cooling bag 10, the side flaps 14b are placed in an intermediate position between the lying position and the standing position (that is, the side flaps 14b are parallel to the bottom plate 11). state). The side flap 14b has the effect of holding the top opening to a certain degree even at the intermediate position.
By doing so, the end flaps 12b and 13b are bent substantially perpendicularly to the front plate 12 and the rear plate 13, and the tip portions (upper edges of the front plate 12 and the rear plate 13) are butted to open and close. When the opening is closed by the means 16, the left and right side flaps 14b, the end flaps 12b, and the end flaps 13b overlap each other, and the left and right side flaps 14b reduce the occurrence of gaps near both ends of the opening of the cooling bag 10. It is possible to improve the cold insulation effect.

1 to 3, one end of a winding belt 17 is attached to the decoration belt 12a of the front plate 12. As shown in FIGS.
A hook-and-loop fastener is attached to the other end of the winding belt 17 separated from the front plate 12 , and a fixing portion 12 c made of a hook-and-loop fastener is provided at the center of the lower portion of the front plate 12 .
The other end of the tightening belt 17 and the fixing portion 12c can be detachably connected.

Therefore, as shown in FIGS. 5 and 6, the cold insulating bag 10 is folded, the winding belt 17 is wound in the vertical direction of the cold insulating bag 10, and the ends thereof are connected to the fixing portions 12c, whereby the cold insulating bag can be secured. can be prevented from expanding from the folded state by restoring elasticity, and a compact state can be maintained.

The embodiments disclosed this time are illustrative in all respects and are not restrictive. The scope of the present invention is indicated by the claims, and includes all modifications and variations within the scope of the claims and equivalents thereof.

For example, in the embodiment, the side flap 14b is bent toward the inner surface of the side plate 14 in the laid down position, but as shown in FIG. You may
In this case, as shown in the figure, when forming the connecting means 14c, they are provided on the lower part of the side plate 14 and the outer surface of the side flap 14b, contrary to the embodiment.
In addition, in the embodiment, the folding line 14a formed on the side plate 14 is configured so that it can be folded inward of the cooling bag 10, but it is configured so that it can be folded outward. may However, it is preferable that the fold line 14a is configured so that it can be folded inside the cooling bag 10, because the bag becomes more compact when folded.
In the embodiment, the connecting means 14c is configured by hook-and-loop fasteners, but may be configured by other detachable members such as snap buttons.
It is also possible to omit the connecting means 14c.

The shape of the side flap 14b is not limited to the embodiment.
For example, as shown in FIG. 8( a ), the front end portion may be configured to be shorter than the front plate 12 and the rear plate 13 .
Moreover, it is good also as a semicircle like FIG.8(b). In addition, it may be polygonal.
In the embodiment, the side flap 14b is integrated with the side plate 14, but it is not limited to this, and may be formed separately and then connected.
Further, if the side plate 14 has the effect of preventing folding due to the fold line 14a, the width of the side flap 14b (the length in the direction from the front plate 12 to the rear plate 13) is the width of the side plate 14. The width may not be the same as (the length in the direction from the front plate 12 to the rear plate 13 ), and the width may be narrower than that of the side plate 14 .
If the width of the side flap 14b is at least half the width of the side plate 14 or more, it is possible to exhibit the effect of preventing folding. However, if the width of the side flap 14b is the same as the width of the side plate 14, this effect can be exhibited more reliably.

In the embodiment, the side plates 14 and the like of the cooling bag 10 are rectangular. It can also be other polygons such as triangles.
In the embodiment, the cool bag 10 is a hand-held type with a hand-held belt 15, but it is not limited to this, and may be a rucksack type provided with a shoulder belt.
It is also possible to omit the handbag and shoulder belt. Similarly, the winding belt 17 can also be omitted. Instead of the winding belt 17, a ring-shaped rubber cord or the like that is separate from the cooling bag 10 may be used to bind the folded cooling bag 10 so that it does not open.

The opening/closing means 16 is not limited to the slide fastener of the embodiment, and may be of a chuck type. It is also possible to omit the opening/closing means 16 .
In the embodiments, the bag is used as a cold insulation bag, but the use of the bag according to the invention is not limited to this, and it may be used as a heat insulation bag or as a bag not particularly used for cold insulation or heat insulation. The material of the bag is also not limited to the embodiment, and various materials such as cloth, plastic, and paper can be used depending on the application.

10 Insulated bag 11 Bottom plate 12 Front plate 12a Decoration belt 12b End flap 12c Fixing part 13 Back plate 13a Decoration belt 13b End flap 14 Side plate 14a Folding line 14b Side flap 14c Connection means 15 Carrying belt 16 Opening/closing means 17 Winding belt

Claims (7)

a bottom plate;
a front plate connected to the front edge of the bottom plate;
a back plate connected to the rear edge of the bottom plate;
left and right side plates that are connected to the left and right edges of the bottom plate and that can be folded inward or outward along folding lines so that the front plate and the back plate overlap,
A foldable bag with an open top,
Further comprising a pair of left and right side flaps rotatably connected to the upper edge of the side plate,
The side flaps are
a standing position where the side plate can be raised from the upper edge and can be folded inward or outward when the side plate is folded;
Between a lying position where the side plate is laid down from the upper edge of the side plate and superimposed on the side plate, the side plate is prevented from being naturally folded by the fold line of the folding line, and the opening of the top surface is held. So, a bag that can be switched. The side plate and the side flap include:
2. The bag according to claim 1, further comprising connecting means for detachably connecting the side flaps and the side plate in the folded position of the side flaps. 3. The bag according to claim 2, wherein said connecting means is hook-and-loop fasteners provided on inner or outer surfaces of said side plates and said side flaps. 4. A bag according to any preceding claim, wherein the width of the side flaps is equal to the width of the side plates. on the upper edge of the front plate and the back plate,
When the side flaps are in the upright position, by overlapping the upper edges of the front plate and the back plate,
When the side flaps are in the collapsed position, by bending the front plate and the back plate so that the upper edges face each other,
5. The bag according to any one of claims 1 to 4, further comprising means for opening and closing the top opening which can be attached to and detached from each other. further comprising a belt having one end fixed to the front plate or the back plate and the other end detachably connectable to the front plate or the back plate;
6. The belt according to any one of claims 1 to 5, wherein when the bag is folded, the belt is wound between the front plate and the back plate, and the other ends are connected to each other so that the folded state can be maintained. bag. 7. The cold insulating bag according to any one of claims 1 to 6, wherein at least the bottom plate, the front plate, the back plate and the side plates are made of a material containing a heat insulating material.

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