JP3429918B2 - Portable liquid bag - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable liquid bag, and more particularly to a liquid bag suitable for carrying a liquid such as water by human power mainly during outdoor leisure or disaster. Is.

[0002]

2. Description of the Related Art Conventionally, a solid plastic container having a capacity of about 10 to 20 liters has been used for manually carrying a liquid such as a beverage such as water or a fuel such as kerosene. In recent years, a relatively flexible blow-molded plastic container has been used as a container for carrying water during outdoor leisure. Since the container of this blow molded product has an appropriate thickness that is neither thin nor thick, it is thinner and lighter in weight than conventional hard plastic containers and can be folded,
On the other hand, the wall thickness is secured to the extent that the rigidity of the wall surface of the container is not impaired and it is also self-supporting.

Although the blow-molded container can be folded for some time, it is bulky when folded and is inconvenient for storage and storage because it is too thick to be neatly folded. On the other hand, if the wall thickness of the container is made thinner, it will be able to fold neatly, but on the other hand, the rigidity of the container wall will decrease and the self-supporting property will be impaired, or the strength of the container wall will decrease and it will rupture or rub against impact. It is easy for tears and the like to occur.

When carrying a plastic hard container or a blow molded product container, the container is lifted by grasping a handle attached to the container or holding a side surface or a bottom surface of the container. However, when the capacity of the container is relatively large, the weight at the time of filling becomes considerably heavy to be carried by human power, so even if it is attempted to lift by such a method, it is difficult to carry the force and it is difficult to carry.

[0005]

SUMMARY OF THE INVENTION The present invention has been accomplished in view of the above circumstances, and an object thereof is self-sustainability despite having flexibility enough to be folded small during storage. It is to provide a portable liquid bag which has excellent strength, is convenient for transportation at the time of filling, and can be easily transported even when the capacity is large.

[0006]

In the present invention, in order to achieve the above object, a liquid bag is formed into a pair of (a) a pair of flat surface portions and a fold-shape that are opposed to each other and constitute a front side and a back side of the bag. A bag body of a four-side seal having two side portions formed so as to have a valley fold line folded inward, and a gripping or suspending member for transportation attached to the bag body (hereinafter, simply referred to as " (B) a flat surface portion and a side surface portion that form the bag body are formed by at least two synthetic resin films that are overlapped with each other, and At each corner of the bag body, a closing seal portion and a triangular fin portion are formed, and (d) the closing seal portion is a bag body in which a pair of flat surface portions are overlapped and between flat surface portions. The two side parts with the valley fold line are The inner surfaces of the bag bodies facing each other in a folded state so that there is a linear strip extending from an arbitrary position of one of the top seal portion and the bottom seal portion to an arbitrary position of the side seal portion. (E) The triangular fin portion is surrounded by the seal portion, the side seal portion, and the closed seal portion of the top seal portion and the bottom seal portion. Formed ,
Moreover, the opposite vertices of the front and back corners of the bag body are bonded
Are those which are, (f) gripping or suspending members for the conveying, it
It is attached to the bag body using front and rear fins of at least two of the triangular fins formed at each corner at these attachment positions. It is configured to be a portable liquid bag.

In the portable liquid bag, preferably, (f-1) the carrying gripping or suspending member is a carrying member, and the carrying member is an upper right fin portion, an upper left fin portion, It is attached so as to extend from any one of the lower right fin portion and the lower left fin portion to the other fin portion, and both ends of the handbag member are provided with front and rear fin portions at respective attachment positions. Configured to be attached.

In another preferred embodiment, the above-mentioned portable liquid bag is (f-2) the holding or suspending member for carrying is a pair of left and right backpack members, and the pair of left and right backpack members are provided. One of the backpack members is attached to the bag body at the upper right fin portion and the lower right fin portion, and the other backpack member is attached to the bag body at the upper left fin portion and the lower left fin portion.

In the latter case, more preferably,
(G) The pair of left and right carrying members is composed of one string,
(H) One end of the cord is attached to the lower right front and rear fins, and the other end is attached to the lower left front and rear fins. (I) The cord is attached to one end of the lower right fin. From the attachment part, through the front side of the bag body, reach the upper right fin part,
It passes through the front fin section and the rear fin section on the upper right one by one, and protrudes to the back side of the bag body, then passes through the back side of the bag body to reach the lower right fin section, and the lower right rear fin section and front fin section. To the front side of the bag main body, then to the lower left fin section through the front side of the bag main body, and to the rear left side of the bag main body by sequentially penetrating the lower left front fin section and the rear fin section. It projects, then passes through the back side of the bag body to reach the upper left fin section, sequentially penetrates the upper left rear fin section and the front fin section, projects again to the front side of the bag body, and then passes through the front side of the bag body to the lower left. It is configured so as to reach the other end mounting portion of the fin portion.

[0010]

The liquid bag of the present invention has the following structural features by having the above-mentioned configuration.

(1) Since the gusset bag is made of a thin synthetic resin film and is highly flexible, the gusset can be folded into a small fold during storage, and the bag can be sufficiently secured in depth when filling the contents. Instead, it can be filled with a large volume of liquid.

(2) Since the flat surface portion and the side surface portion of the bag main body are formed of at least two synthetic resin films that are overlapped with each other, they have sufficient strength and durability as well as lightness and flexibility.

That is, in the liquid bag of the present invention,
Only the outer synthetic resin film wears due to friction with the outer box,
Since the inner synthetic resin film is less likely to wear due to slippage with respect to the outer synthetic resin film, it is less likely to be torn than the flat and side portions formed of one synthetic resin film and having the same thickness. In addition, when the flat surface portion and the side surface portion of the bag body are formed of a plurality of synthetic resin films stacked as described above, the flat surface portion and the side surface portion having the same thickness are formed by one synthetic resin film. Compared to the case, the bag as a whole is more flexible, so it is easier to fold.

(3) Since the closing seal portions are formed at the respective corners of the bag body, the bag body has self-standing property, good discharge property (content liquid discharge property) and impact resistance. That is, when the liquid bag of the present invention is filled with liquid and expanded, the pillar structure is surrounded by the front and rear flat surface portions and the two side surface portions having the gussets, and the top and bottom portions have a total of eight front, rear, left and right sides. A straight band-shaped closing seal portion provided so as to cut out a corner obliquely takes a shape close to a cube or a rectangular parallelepiped. Since the liquid bag of the present invention takes such a cubic shape or a rectangular parallelepiped shape at the time of filling, it is self-supporting although it is a bag made of a thin synthetic resin film and having not so much rigidity.

Further, at each corner of the liquid bag of the present invention, a triangular fin portion is formed which is completely closed from the filling inner space of the bag main body by the closing seal portion and the contents cannot enter. There is. For this reason, the residual liquid does not collect even when the corner is bent during use, and the residual liquid discharge performance is improved.

Further, the linear band-shaped closed seal portion formed by cutting each corner as if it were obliquely has a stress-dispersing effect against impact, so that the impact resistance of the bag is improved.

(4) Since the triangular fins are formed at the respective corners, a gripping or suspending member for transportation can be attached thereto. That is, at each corner of the bag body, a triangular fin portion is inevitably formed in association with the formation of the closing seal portion, but this portion is attached to a gripping or hanging member for transportation. Can be used as As a gripping or suspending member for transportation, for example, one that is attached to the top of the bag body such as a handbag or a handle of a suitcase, or one that is attached to both sides of the bag body such as a backpack of a rucksack. Although there are some, etc., the triangular fins are in a good position to mount these carrying members. Also, in terms of ease of installation, firstly, the internal space for filling is completely separated by the closing seal part, and it is necessary to perform punching and other mounting processing without worrying about leakage of the contents. Secondly, since the fin portion has a sufficiently large area, it is easy to mount. Further, in terms of mounting strength, the triangular fin portion has a durable structure in which a flat surface portion formed by stacking two or more synthetic resin films and a side surface portion formed by stacking two or more synthetic resin films are bonded together. As a result, sufficient mounting strength is secured.

The liquid bag of the present invention having the above-mentioned structural features has a number of excellent effects as described below, and its practical value is extremely high. (1) The liquid bag of the present invention is a flexible gusset bag made of a thin synthetic resin film, and can be folded small and neatly, so it is convenient to store and carry when not in use, and has a light weight.
Nevertheless, when used, it has a large depth and a large capacity, is self-supporting, and is excellent in strength, abrasion resistance and impact resistance, and has high durability. In addition, residual liquid does not easily accumulate.

(2) The liquid bag of the present invention is provided with 3 at each corner.
Since the gripping or suspending member for transportation is attached with sufficient strength using the rectangular fin portion, it is convenient for carrying and transportation during filling. Moreover, since the mounting process of the transportation member is easy, the productivity at the time of manufacturing is high.

In the liquid bag of the present invention, preferably, the carrying member as a carrying member has an upper right fin portion, an upper left fin portion,
The fins are attached so as to extend from any one of the lower right fin portion and the lower left fin portion to the other fin portion, and the front and rear two fin portions are attached at the attachment position. In this case, the liquid bag of the present invention is
By gripping and lifting the carrying member, it can be carried like a carrying bag or a suitcase. Moreover, since the two front and rear fins are used for mounting at one mounting position, the mounting portion has sufficient strength and is strong.

As another aspect, a pair of left and right carrying members as carrying members are attached to the liquid bag of the present invention from the upper right fin portion to the lower right fin portion and from the upper left fin portion to the lower left fin portion. In this case, since the liquid bag of the present invention can be carried on the back-carrying member through the arm like a rucksack, it can be easily transported in a heavy state during filling. Further, since the bag body is formed of a flexible synthetic resin film, it does not hurt when it hits the back during transportation. Therefore, it is particularly convenient when the volume of the container is large.

Furthermore, since this backpack member can be used as a hanging member other than for carrying during use,
It can be hung on a tree branch without using a special member, and is very practical in outdoor activities and in the event of a disaster. Further, since the pair of left and right carrying members can be gripped by two or more people unlike a small handle, it is convenient for a plurality of people to carry one liquid bag in a heavy state at the time of filling.

The pair of left and right carrying members as the carrying member preferably uses only one cord and one end of the cord is right, as shown in the above configurations (g) to (i). It is formed by attaching to the lower fin portion, then penetrating each fin portion in a predetermined order and stretching around the bag body, and then attaching the other end of the cord to the lower left fin portion.

When such a mode is adopted, the string used functions as a pair of backpack strings (backpack members) on the front side of the bag body, that is, on the side that contacts the back when the backpack is carried, while the string of the bag body is used. On the back side, it functions as a tightening string (tightening member) for preventing the bag body from moving around on the back. In this case, since the bag body is tightened in a balanced manner with one string, the tightening effect is enhanced and the bag body is very stable on the back. Moreover, since it is sufficient to adjust the length of only one string, the length of the string can be easily adjusted. Further, in this case, since only one string is used, only one end of the string exists on each of the left and right sides of the bag body, and the end does not get in the way.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described more specifically by showing Examples of the present invention. In the present specification, one of the both sides of the bag body is referred to as "right side" and the other is referred to as "left side". Particularly, in the case of a liquid bag having a back member, the back member that the user passes through the right arm. The side on which is attached is called the “right side”, and the side on which the backpack member through which the user passes his left arm is attached is called the “left side”. This definition explains the relative positional relationship of each part of the bag. This is for the purpose of doing so, and it is safe to read the terms "right" and "left" completely in reverse.

1 and 2 are views relating to a reference example (201) of the liquid bag of the present invention, and more specifically, FIG. 1 is a front view showing a state in which the liquid bag 201 is folded. 2 is a front side perspective view of the liquid bag 201 filled with contents. The liquid bag 201 is of a type to which a carrying bag or a handle-like carrying member of a suitcase is attached as a carrying member.

6 to 9 are views relating to a reference example (202) of the liquid bag of the present invention. More specifically, FIG. 6 is a front view showing a state in which the liquid bag 202 is folded, and FIG. 8 is a left side view of the liquid bag 202, and FIG. 9 is a front perspective view of the liquid bag 202 filled with contents.

FIG. 10 is a rear view showing a folded state of the reference example (203) of the liquid bag of the present invention. 11 to 14 show another example of the liquid bag of the present invention (20
4), more specifically, FIG. 11 is a front view showing the liquid bag 204 folded, FIG. 12 is a rear view showing the liquid bag 204 folded, and FIG. 13 is a liquid bag 204. FIG. 14 is a front perspective view showing a state where the contents are filled, and FIG. 14 is a rear side perspective view showing a state where the liquid bag 204 is filled with the contents.

These liquid bags 202, 203, 204
Is a type in which a hanging member in the form of a backpack of a rucksack is attached as a carrying member. As shown in the above drawings, in the present invention, the gripping or suspending member 30 for transportation is attached to the bag body 1 at one or at two or more fin portions 11. The carrying member 30 is a member for manually lifting, supporting, and carrying the liquid container of the present invention. For example, like the liquid bag 201 of FIG. 1, the carrying member 30 has a handle-like shape such as a carrying bag or a suitcase. -A and the liquid bag 2 of FIG.
02, a pair of left and right carrying members 30-b (30-b
1, 30-b2) can be exemplified.

Examples of the contents to be filled and transported in the liquid bag of the present invention include water such as drinking water and domestic water, but the kind of the contents is not particularly limited. Further, the capacity is not particularly limited, but usually, it is appropriately set within the range of 5 to 30 liters. Considering the weight at the time of filling, when the carrying member is the carrying member 30-a, the volume is preferably 10 liters or less, and particularly preferably about 3 to 5 liters. On the other hand, when the carrying members are a pair of left and right carrying members 30-b1 and 30-b2, the capacity is 1
It is preferably about 0 to 20 liters. The capacity in the above range is heavy for carrying by human power, but it is a quantity that can be carried relatively easily by carrying it on the back, and is a range of capacity in which the advantages of this type of liquid bag can be particularly utilized. .

Hereinafter, the illustrated liquid bags 201 to 204 will be sequentially described. Liquid bag 2 shown in FIGS. 1 and 2.
01 is a bag body 1 formed of a synthetic resin film
And the four fin portions on the top side of the bag body 1 (the upper right front fin portion 11-a, the upper right rear fin portion 11-e, the upper left front fin portion 11-c, and the upper left rear fin portion). 11-g) and a carrying member 30-a attached thereto.

FIG. 3 shows a front view of the liquid bag 201 of FIG. 1 in a state where the bag body 1 is folded. The bag body 1 of the liquid bag 201 is formed so as to include a pair of opposed flat surface portions 2 and 3 that form the front side and the back side of the bag and a valley fold line 6 folded inward in a fold shape. It is a four-sided sealed bag body having two side surface parts 5 and having a top seal part 7, a bottom seal part 8 and a side seal part 9 on the periphery of the bag body. The closing seal portion 10 and the triangular fin portion 11 (11a to 11a) are provided at each of the corners 4 at a total of 8 positions on the upper, lower, left, right, front, and rear of the bag body.
1h) are formed. In addition, in the four fin portions on the top side (front right upper fin portion 11-a, upper right rear fin portion 11-e, upper left front fin portion 11-c, and upper left rear fin portion 11-g) Is provided with a through hole 20 for attaching a handbag member.
The circumference 0 is reinforced by a ring 21 made of metal or plastic.

A spout 12 for repeatedly filling and discharging the contents is provided on the top side of the front flat surface portion 2 of the bag body 1. The mounting position of the extraction port 12 is not particularly limited, but when it is provided on the top side of the flat part, the spout does not get in the way during transportation, it does not get dirty when dropped on the ground, and the dischargeability of the contents is good. Is also good.

Each flat surface portion and each side surface portion are square or rectangular, and in the case of the bag body 1 of FIG. 3, the flat surface portions 2 and 3 and the side surface portion 5 are all rectangular. Top seal 7,
Bottom seal 8, side seal 9 and closure seal 1
Adhesion for forming 0 is usually performed by a heat sealing method. By bending and forming the film for forming the bag body, part of the top seal portion 7, the bottom seal portion 8 and the side seal portion 9 can be omitted.

FIG. 4 is a view schematically showing a horizontal cut surface of the bag body 1 in a filled state. As shown in FIG. 4, the flat surface portions 2 and 3 and the side surface portion 5 are formed by at least two synthetic resin films that are overlapped with each other, and have a buffer hammer type structure. Here, "formed by at least two synthetic resin films that are superposed" means that a plurality of synthetic resin films are separated or have a structure in which they are superposed in a separable state. As such a structure, for example, a structure in which they are superposed in a non-bonded state as shown in FIG. 4 can be exemplified. Further, as another example, it is possible to exemplify a laminated structure in which the bag is pseudo-bonded with an adhesive strength such that the bag is peeled off after the start of use. The pseudo-bonded film is easy to handle during the bag manufacturing stage.

In FIG. 4, the front flat portion 2 will be described as an example. The flat portion 2 is formed of an outer film 2-a and an inner film 2-b, and the film 2 is formed in each seal portion such as the side seal portion 9. -A and 2-b are adhered, and a space 1 is provided between both films in the other non-adhered portion.
There are four. However, both films have side seals 9
It may be locally adhered at a portion 15 other than each seal portion such as. Each film may be a single layer film like 2-b or a composite film like 2-a.

The material resin, thickness, etc. of each synthetic resin film or each layer in the film is appropriately determined in consideration of the properties of the contents and various conditions such as the strength required for the bag. Specifically, the outer film 2-a or the outer layer 2-a1 of the outer film is determined by emphasizing performance such as strength and abrasion resistance required in relation to the external environment, while the inner film 2 -B or the inner layer of the inner film (not present in 2-b), the performance such as water resistance, chemical resistance, gas barrier property or sealing property required in relation to the internal environment is emphasized. It is determined. Further, in the relationship between the outer film 2-a and the inner film 2-b, or between the inner layer 2-a3 of the outer film and the outer layer of the inner film (not present in 2-b),
It is preferable to select a combination in which the slip between them is improved as much as possible.

For example, the flat surface portions 2, 3 of the bag body 1 described above.
And in the side surface part 5, the outer film 2-a is a composite film, and the layer structure [outer layer 2-a1 / intermediate layer 2-a2 / inner layer 2-a3] has a stretched nylon (ON) of 15 μm / 20μm polyethylene (PE) / 60μ
m linear low density polyethylene (LLDPE). On the other hand, the inner film 2-b is a single layer film and has a thickness of 60 μm.
m LLDPE film.

Other specific examples are: (1) Outer film [from outside to inside, 15 μm
m polyvinylidene chloride coat ON layer (K coat ON)
/ 20 μm PE / 60 μm LLDPE] and inner film [60 μm LLDPE], (2) Outer film [12 μm metal evaporated polyethylene terephthalate layer (VMPET) / 15 μm ON / 2]
0 μm PE / 60 μm LLDPE] and inner film [60 μm LLDPE], (3) Outer film [15 μm ON / 20 μm PE]
/ 60 μm LLDPE ・ ON ・ LLDPE coextrusion film] and inner film [60 μm LLDPE ・ ON
・ LLDPE coextrusion film], or (4) outer film [15 μm ON / 20 μm PE
/ 60 μm LLDPE / ethylene-vinyl alcohol copolymer (EVOH) / LLDPE coextrusion film]
And inner film [60 μm LLDPE / EVAL / L
LDPE co-extrusion film] (5) Outer film [12 μm silica evaporated polyethylene terephthalate layer / 15 μm ON / 20 μm PE
/ 60 μm LLDPE] and inner film [60 μm LLDPE] (6) Outer film [12 μm alumina-deposited polyethylene terephthalate layer / 15 μm ON / 20 μm P
E / 60 μm LLDPE] and inner film [60 μm
LLDPE] and the like can be exemplified.

In the above example, ON is effective for improving strength, and K coat ON, VMPET, and EVOH are effective for improving barrier properties. Further, (3) is suitable especially when strength is desired to be improved.

Each corner 4 of the bag body has a bag body 1 at the time of filling.
Has a shape close to a cube or a rectangular parallelepiped as much as possible, and a closing seal portion 10 is formed to form a triangular fin portion 11 at each corner 4. Also,
Since the closing seal portion 10 has an effect of dispersing stress against impact, it also has a role of improving impact resistance of the liquid bag of the present invention.

The closing seal portion 10 folds the bag main body so that a pair of flat surface portions 2 and 3 are overlapped and two side surface portions 5 having valley fold lines 6 are interposed between the flat surface portions. Under the condition, that is, under the condition shown in FIG.
It is formed by adhering the inner surfaces of the bag bodies facing each other in a linear band shape from an arbitrary position P of any one of the top seal portion and the bottom seal portion to an arbitrary position Q of the side face seal portion. .

From the viewpoint of making the bag body 1 at the time of filling into a shape close to a cube or a rectangular parallelepiped as much as possible, the closed seal portion 10 is configured so that the triangular fin portion 11 has a shape as close as possible to an isosceles right triangle. It is preferably formed. For that purpose, the narrow angle m sandwiched between any one of the top seal portion and the bottom seal portion and the closed seal portion and the narrow angle n sandwiched between the side surface seal portion and the closed seal portion are usually 30 to The angle is 60 °, preferably 40 to 50 °, and particularly preferably m = n = 45 °. In the bag body 1, m = n = 45 ° is adopted.

Similarly to the above, from the viewpoint that the bag body 1 at the time of filling has a shape as close to a cube or a rectangular parallelepiped as possible, the arbitrary position P is the top seal portion 7 and the bottom seal portion 8 and the valley fold line 6 as much as possible. The point closer to the intersection with is preferable. Therefore, the arbitrary position P is usually the top seal portion 7
And ± 1c from the intersection of the bottom seal part 8 and the valley fold line 6.
It is provided within the range of m, preferably on the intersection.

Further, from the same viewpoint as above, the respective closing seal portions 10 existing in the respective corner portions 4 have different positional relationships between the right side and the left side, the front side and the rear side, and the top side and the bottom side of the bag body. It is preferred that certain closure seals are as symmetrical as possible.

At each corner 4 of the bag body, by being surrounded by any one of the top sealing portion 7 and the bottom sealing portion 8, the side sealing portion 9 and the closing sealing portion 10, the closing sealing portion 10 is formed. The fin portion 11 having a triangular shape is formed integrally with the. In the present invention, the fin portion 11 is utilized as a mounting portion for the transportation member. The fin portion 11, which is formed in association with the formation of the closing seal portion 10, is a very convenient portion for attaching the carrying member.

The advantage of attaching the carrying member to the fin portion 11 is that, first of all, the fin portion 11 is in a position which is just right for attaching the carrying member. Secondly, the ease of attachment processing is mentioned. That is, the internal space of the fin portion 11 has the closed seal portion 10
Is completely separated from the inner space for filling the bag body, and the contents cannot enter into it. Therefore,
Even if the fin portion 11 is processed by drilling or any other method for attaching the carrying member, leakage of the contents does not occur. In addition, since the fin portion 11 has a sufficiently large area, the mounting process can be easily performed in that respect as well.

Thirdly, it is possible to secure sufficient attachment strength. That is, since the fin portion 11 is formed by sticking together a flat surface portion on which two or more synthetic resin films are stacked and a side surface portion on which two or more synthetic resin films are stacked, a total of four or more sheets are formed. It has a sturdy structure in which synthetic resin films are laminated.

Since the contents do not flow into the triangular fin portion 11, even if each corner 4 is bent, the residual liquid does not accumulate there and the residual liquid can be discharged well.
The inner surfaces of the bag body facing each other in the triangular fin portion 11 may not be adhered to each other as shown in FIG. 1, but may be continuously or discontinuously adhered to the adhesion portion of the closing seal portion 10. Good. In this case, the internal space of the fin portion 11 is reduced or completely lost.

When the bag main body is filled with the contents, the triangular fin portion 11 bounces up or bends in an unspecified direction, so that handling at the time of filling is complicated. In order to eliminate such complicatedness in handling, it is preferable to bond the opposite vertices R of the front and rear corners of the bag body to each other, as in the liquid bag 204 shown in FIGS. 11 to 14. . By doing so, not only the triangular fin portion 11 does not get in the way but also the upper and lower portions of the bag body are covered with the fin portion 11 at the time of filling, so that the bag is rubbed and torn. , Or pinholes are prevented.

When bonding the vertices R to each other,
The vicinity may be further bonded. For example, the top seal portions 7 or the bottom seal portions 8 facing each other on the front side and the back side of the bag body may be bonded continuously or discontinuously to the bonding portion of the apex R. In addition, when adhering the apexes of the corners, the adhering device used for forming the respective sealing portions of the bag body can be used.

As shown in FIG. 1, in the liquid bag 201, a cord (rope) having a circular or elliptical cross section is used as the carrying member 30-a. The string has four fin portions 11-a, 11-e, 11 on the top side at one end thereof.
They are attached to the bag body 1 by sequentially passing through the through holes 20 in -g and 11-c and tying both ends thereof. In this case, the strap, which is the carrying member 30-a, is free to move in the through hole.

The material, shape, attachment method, etc. of the carrying member are not limited to those described above. For example, as shown in FIG. 5, a flexible and flat plastic handbag member 30-a having a coupling portion 36 provided with a protrusion 34 and a fitting portion 35 at both ends is used, and the protrusion 34 is The handbag member 30-a may be detachably attached to the bag body 1 by passing through the through hole 20 of the fin portion and then fitting the fitting portion 35. Although it is an example of a backpack member, as shown in FIG. 16, a belt-shaped cord (30-b2) having a flat cross section is used, and the cord is sandwiched between metal or plastic fixtures 22. The string may be attached so that it does not move at the attachment portion.

The one or more fin portions to which the gripping or suspension members for transportation are attached are eight fin portions (1
1-a to 11-h) can be appropriately selected, but in the case where the carrying member is a carrying member, the viewpoint of stability during handling, handleability, mounting strength of the carrying member, etc. Therefore, normally, as in the liquid bag 201 of FIG. 1, the front and rear fin portions 11-a and 11-e on the upper right and the front and rear fin portions 11- on the upper left are provided so as to extend from the upper right fin portion to the upper left fin portion.
It attaches to the bag main body 1 using c and 11-g.

As shown in FIG. 2, since the liquid bag 201 has a substantially rectangular parallelepiped shape or a cubic shape at the time of filling, it has a self-supporting property and is convenient. The fact that it is a rectangular parallelepiped or a cube means that the bag has a depth on one side, so that it is compact because it can be filled with a large volume of liquid in spite of being bulky.

On the other hand, during storage, the liquid bag 201 can be folded neatly as shown in FIG. 1, and since it is extremely flexible, it can be folded further smaller.
Further, the weight is also light as described above. Therefore, it is very convenient to store and carry.

The liquid bag 202 shown in FIGS. 6 to 9 is a rucksack type liquid bag composed of a bag body 1 formed of a synthetic resin film and a pair of left and right back carrying members 30-b1 and 30-b2. . The bag body 1 of the liquid bag 202
Is basically configured similarly to the bag body of the liquid bag 201 shown in FIG. 3, but the eight fin portions (11-a to 11
-H) Through hole 2 for attaching the backpack member to all
0 is provided, and a spout 12 is provided on the top side of the back flat surface portion 3 of the bag body (see FIG. 7). In the case of the back-carrying type, the spout 12 may be provided anywhere as long as it does not hit the back when the liquid bag is carried on the back, but when it is provided on the top side of the rear flat surface part, the spout 12 is an obstacle. It does not become dirty, does not get dirty when dropped on the ground, and discharges the contents well.

In the liquid bag 202, the backpack member 30
-B1 and 30-b2 are cords (ropes) having a circular or elliptical cross section. As shown in FIG. 8, the left backpack member 30-b2 has one end sequentially passed through the through holes 20, 20 in the front left and right fin portions 11-c and 11-g, while the other end is lower left. Before and after the fin 11-
It is attached to the bag body 1 by sequentially passing through the through holes 20 and 20 in d and 11-h, and fixing the stoppers 32 to both ends of the backpack member. Similarly, the right shoulder member 30-b1 is also attached to the bag body 1 at the upper right and lower front fin portions and the lower right front and rear fin portions. The stoppers 32 are backpack members 30-b1, 3
Not only can the terminal portion of 0-b2 be prevented from coming out of the through hole, but it can also be moved to an arbitrary position of the backpack member and fastened, which is convenient for adjusting the length of the backpack member.

The back member may be attached to the fin portion 11 by using only one of the front and rear fin portions (11-c) as shown in FIG. 15, but as shown in FIG. 8 and FIG. It is preferable to use both fins in terms of mounting strength.

As shown in FIG. 9, the liquid bag 202 has a substantially rectangular parallelepiped shape or a cubic shape at the time of filling. At the time of this filling, the user puts his right arm on the right shoulder member 30.
The liquid bag 202 can be carried on the back by passing the left arm through the left shoulder member 30-b2, which is easy to carry. Further, since the bag body 1 is formed of a thin synthetic resin film, the bag itself does not hurt when it is carried on the back and the weight of the bag itself is light. These points are also factors that improve the ease of carrying the liquid bag 202.

Further, since the liquid bag 202 becomes a rectangular parallelepiped or a cube when filled, it is convenient because it has self-supporting property during use. The fact that it is a rectangular parallelepiped or a cube means that the bag has a depth on one side, so that it is compact because it can be filled with a large volume of liquid in spite of being bulky. Furthermore, the backpack member 30-b is
Since it can also be used as a hanging string to hang it on a tree branch as it is, it is very practical during outdoor activities and disasters.

On the other hand, during storage, the liquid bag 202 can be neatly folded as shown in FIGS. 6 and 7.
It is extremely flexible and can be folded even smaller. Further, the weight is also light as described above. Therefore, it is very convenient to store and carry.

In the case of a rucksack type liquid bag, it is preferable that the fastening members 31-a and 31-b are stretched around the back side of the bag like the liquid bag 203 shown in FIG. When the liquid bag of the present invention is filled with liquid and transported, the liquid as the content moves around in the bag and the bag continues to be deformed, which is unstable. On the other hand, when the liquid bag is tightened by the tightening member, the bag is prevented from being deformed during transportation, so that the stability of the bag is improved.

The tightening member 31 is stretched around the back side of the bag body, but is otherwise similar to the carrying member 30, and is attached to the bag body at the fin portion 11,
The material, shape, mounting method, etc. are not particularly limited. For example, in the liquid bag 203 of FIG. 10, a rope-like string is used, and the right tightening member 31-a has one end of the member at the upper right rear fin portion 11-e and the front fin portion 11.
-A (not shown) through each of the through holes 20, 20, while the other end is in the lower right rear fin portion 11-f and the front fin portion 11-b (not shown). Through hole 2
It is attached to the bag body 1 by sequentially passing through 0 and 20, and stoppers 32 at both ends of the member so that the member does not come out of the through hole. Similarly, the left tightening member 31-b is attached to the bag body 1 at the upper left and right front fin portions and the lower left front and rear fin portions.

Left and right shoulder members 30-b1 and 30-b2
As shown in FIG. 10, it is preferable that the distance between the two is narrower on the top side and wider on the bottom side. This makes it easier for the user to pass the arm through the backpack member.

On the other hand, the left and right tightening members 31-a, 31
Care should be taken not to attach -b too close to the side. This is because if the mounting position of the fastening member 31 in the fin portion 11 is too close to the side surface portion, the fastening member 31 will be disengaged from the back surface portion 3 during filling or transportation.

In the present invention, a pair of left and right back-carrying members 30-b1 and 30-b2 can be formed by attaching one string so as to penetrate each fin portion 11 in a predetermined order. Liquid bag 20 shown in FIGS. 11 to 14.
In No. 4, one end of one string is sequentially passed through the through holes 23, 23 provided in the rear fin portion 11-f and the front fin portion 11-b at the lower right of the bag main body, to the rear side of the bag. A stopper 32 is attached to one end of the projecting string. Then, starting from the attachment portion of one end of the cord formed of the through holes 23, 23, the other end of the cord is rotated from the lower right front fin portion 11-b to the front side of the bag body to reach the upper right fin portion, Upper right front fin 11-a and rear fin 11-e
Through the through-holes 20, 20 provided on the rear side of the bag so as to project to the rear side of the bag, and then the rear side of the bag body is rotated to reach the lower right fin portion, and the lower right rear fin portion 11-f and Through holes 20, 20 provided in the front fin portion 11-b
To the front side of the bag, and then the front side of the bag body is horizontally rotated to reach the lower left fin portion, and each of the lower left front fin portion 11-d and the rear fin portion 11-h is provided. It is sequentially passed through the through holes 20, 20 to be projected to the rear side of the bag body again, and then the rear side of the bag body is rotated to reach the upper left fin portion, and the upper left rear fin portion 11-g and the front fin portion 11- c is sequentially passed through to project to the front side of the bag body again, then the front side of the bag body is rotated to reach the lower left fin portion, and finally the lower left front fin portion 11-d and the rear fin portion 11-h are provided. Each through hole (the other end mounting part) 2
A stopper 32 is fastened to the other end of the projecting string by projecting it to the rear side of the bag body through Nos. 4 and 24. It should be noted that the one end attachment portion 23 and the other end attachment portion 24 may be attached by the fixtures 22 as shown in FIG. 16 instead of using the through holes.

Here, one end mounting portion 23 and the other end mounting portion 24
Are attached closer to the side surface than the other through holes 20. Therefore, the pair of left and right shoulder members 30-b1, 30
-B2 is wider on the bottom side than on the top side, and
The tightening members 31-a and 31-b do not come too close to the side surface portions, and further, on the bottom side of the front surface portion 2, the back carrying member 3 is provided.
0-b1, 30-b2 and string 3 stretched horizontally
It is designed so that it does not interfere with 3.

As shown in FIGS. 13 and 14, when the liquid bag 204 as described above is filled with liquid, a single string is provided on the front face 2 side as a pair of left and right backrest members 30-b1 and 3.
At the same time, it functions as a pair of left and right tightening members 31-a and 31-b on the rear surface 3 side. Further, the string 33 passing horizontally on the bottom side of the front surface portion 2 firmly supports the bottom portion which easily sags during filling. Therefore, since the bag body can be uniformly tightened with one string, the stability of the bag is very good.

Further, in the case of the liquid bag 204, since only one string is used and the one end mounting portion and the other end mounting portion of the string are provided on the bottom side of the bag body, the end portion of the string is There is only one on the left and one on the bottom of the bag and the ends are unobtrusive.

[0071]

As described above, the portable liquid bag of the present invention can be folded into a small size, is strong, light and self-supporting when it is filled, and has a large capacity despite being compact. Therefore, its practical value is extremely high, and it is very convenient especially for carrying water for outdoor leisure and disaster.

In the case where a backpack member is attached as a gripping or suspending member for transportation, the backpack member can be easily carried by carrying an arm through the arm like a rucksack, and the back does not hurt when carried. Since it can be hung on a tree without using any special equipment, it is especially convenient when the capacity is large.

In the present invention, the pair of backrest members and the pair of tightening members can be formed by one string. In that case, the tightening effect is particularly high, and since only one string is used, there are only two ends of the string, and the ends do not get in the way. Therefore, 1
It is more effective to form all the pair of backing members and the pair of tightening members with a string of books.

[Brief description of drawings]

FIG. 1 is a front view showing a folded state of a reference example (201) of a liquid bag of the present invention.

FIG. 2 is a front side perspective view of the liquid bag (201) of FIG. 1 in a state of being filled with contents.

3 is a front view showing a state in which the bag body of the liquid bag (201) of FIG. 1 is folded.

FIG. 4 is a view schematically showing a horizontal cross section of the liquid bag (201) of FIG. 1 in a filled state.

FIG. 5 is an explanatory diagram showing an example of a method of attaching a handbag member.

FIG. 6 is a front view showing a folded state of another reference example (202) of the liquid bag of the present invention.

7 is a rear view showing a state in which the liquid bag (202) of FIG. 6 is folded.

FIG. 8 is a left side view of the liquid bag (202) of FIG.

9 is a front side perspective view of the liquid bag (202) of FIG. 6 with contents filled therein.

FIG. 10 is a rear view showing a folded state of the reference example (203) of the liquid bag of the present invention.

FIG. 11 is a front view showing a state where an example (204) of the liquid bag of the present invention is folded.

FIG. 12 is a rear view showing a state in which the liquid bag (204) of FIG. 11 is folded.

13 is a front perspective view of the liquid bag (204) of FIG. 11 with contents filled therein.

14 is a rear perspective view of the liquid bag (204) of FIG. 11 with contents filled therein.

FIG. 15 is an explanatory diagram showing a reference example of a method of attaching a backpack member and a fastening member.

FIG. 16 is an explanatory view showing another reference example of a method of attaching a backpack member and a fastening member.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Sho 60-13370 (JP, U) Fukai Hei 2-66442 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65D 33/14 B65D 33/12 B65D 30/16-30/18

Claims (4)

(57) [Claims] 1. (a) A pair of opposed flat surfaces forming the front side and the back side of the bag, and two side surface portions formed so as to have valley fold lines folded inward in a fold shape. It is composed of a bag body with a four-way seal and a gripping or suspending member attached to the bag body for transportation. (B) The flat surface portion and the side surface portion constituting the bag body are at least two superposed ones. It is formed of a synthetic resin film, (c) at each corner of the bag body, a closing seal portion and a triangular fin portion are formed, (d) the closing seal portion, the bag body A top seal portion and a bottom seal are formed between the inner surfaces of the bag body that are opposed to each other in a folded state such that a pair of flat surface portions are overlapped and the two side surface portions having the valley fold line are interposed between the overlapping flat surface portions. One of the seals It is formed by adhering in a linear band shape from an arbitrary position to an arbitrary position of the side surface seal portion, and (e) the triangular fin portion is one of the top seal portion and the bottom seal portion. It is formed by being surrounded by the seal part, side seal part and closed seal part of
The front and rear corners of the bag body are adhered at opposite vertices, and (f) the carrying gripping or suspension member is formed at each mounting position at each corner. A portable liquid bag, characterized in that it is attached to a bag body by using front and rear fin parts of at least two positions of a triangular fin part. 2. (f-1) The gripping or suspending member for transportation is a handbag member, and the handbag member is any one of an upper right fin portion, an upper left fin portion, a lower right fin portion and a lower left fin portion. The portable liquid bag according to claim 1, wherein the portable liquid bag is attached so as to extend from one fin portion to another fin portion. 3. (f-2) The gripping or suspending member for transportation is a pair of left and right back carrying members, and one of the left and right back carrying members has one upper back fin portion and a lower right fin portion. 2. The portable liquid bag according to claim 1, wherein the other backpack member is attached to the bag body at the upper left fin portion and the lower left fin portion. (G) The pair of left and right carrying members is composed of a single cord, and (h) one end of the cord is a lower right front and rear fin part, and the other end is a lower left front and rear. It is attached to the side fin portion, and (i) the string reaches the upper right fin portion from one end attachment portion of the lower right fin portion through the front side of the bag main body, and connects the upper right front fin portion and the rear fin portion. Sequentially penetrates and protrudes to the back side of the bag body, then passes through the back side of the bag body to reach the lower right fin part, and sequentially penetrates the lower right rear fin part and the front fin part to the front side of the bag body. It projects, then passes through the front side of the bag body to reach the lower left fin section, sequentially penetrates the lower left front fin section and the rear fin section, projects again to the back side of the bag body, and then passes through the back side of the bag body. Reach the upper left fin, and then the upper left rear fin and front fin 4. The portable liquid bag according to claim 3, wherein the portable liquid bag penetrates and again projects to the front side of the bag body, and then passes through the front side of the bag body to reach the other end mounting portion of the lower left fin portion.