JP3033929U - Liquid storage bag with hanging handle - Google Patents

Abstract

(57) Abstract: In a liquid containing bag made of a plastic film, the unstable deformability of the form when the liquid is contained is improved to improve the handling property in transportation and use. SOLUTION: A non-sealing space part (9) is formed by inner and outer fusion-bonding line parts (2, 3) parallel to an upper sealing edge (4) of a liquid containing bag.
And a backflow-preventing flat liquid passage (20) communicating with the inside and outside of the bag is provided at a part of the seal edge (S), and the outflow pipe (10) inserted and used in the non-seal space part (9) is inserted to form a reinforced handle portion.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a plastic film liquid storage bag capable of inflow storage and outflow use of liquids such as water, fruit juice, and seasoning liquid, and in particular, the inside and outside of the bag are communicated only by a flat liquid pipe made of a plastic film having a backflow prevention property. In addition, the purpose of the present invention is to provide a liquid containing bag that has a hanging part formed on the upper edge of the bag and is easy to handle during transportation and use.

[0002]

[Prior art]

 In a liquid storage bag made of a plastic film, it is possible to provide a backflow preventing liquid passage part at a part of the seal edge and a straw storage part to be inserted into the liquid passage part on the outside of the bag. It is conventionally known as disclosed in Japanese Utility Model Publication No. 38-23183.

[0003]

[Problems to be solved by the device]

 The liquid storage bag with a straw as described above is suitable for carrying a relatively small amount of beverage, but in the case of a large bag containing a large amount of liquid, the weight of the bag increases and the deformability of the storage bag becomes unstable. Due to this, there was a problem that handling during transportation was difficult.

[0004]

[Means for Solving the Problems]

 According to the present invention, in a liquid containing bag made of a plastic film, a flat flow pipe made of a plastic film having a backflow preventing property for communicating between the inside and the outside of the bag is fixedly provided at a part of a sealing edge at the periphery of the bag, and An outer fusion line portion and an inner fusion line portion, which are parallel to each other at a distance along the edge, form an upper sealing edge having a non-sealing space portion therebetween, and an opening is formed at an end of the non-sealing space portion. Further, the liquid storage bag with a hanging handle is characterized in that a handle opening is opened in the center of the non-sealed space.

The liquid storage bag made of the above plastic film is made by heat-sealing a film of a thermoplastic synthetic resin such as polyethylene, polypropylene, polyester, polyvinyl chloride, or nylon, and usually two rectangular films are formed. It is a square-shaped bag formed by stacking and sealing four sides thereof, or folding and folding a rectangular film to seal three sides or sealing both opening edges of a tubular film.

The flat liquid pipe made of a plastic film is itself a flow path formed in the longitudinal direction by stacking two rectangular films of the same thermoplastic synthetic resin as described above and heat-sealing both side edges. A flat tubular body having a backflow preventing property may be used, but a film having a film valve body interposed in the flow channel to strengthen the backflow preventing function is preferably used. This flat liquid tube is preliminarily intervened between the double-sided films and heat-sealed at the same time when the sealing edge is formed during the bag making of the liquid containing bag, and therefore the heat-sealing portion is fixed. It is necessary to provide a heat seal impeding surface on the inner surface of the flow passage of the flat liquid passage, which is a type of cellulose ink coating.

The upper sealing edge of the liquid containing bag is provided with a reinforcing shape-retaining property by an outer fusion bonding line portion and an inner fusion bonding line portion which are parallel to each other with a space along the upper edge of the bag, and a non-sealing space therebetween. The double-sided film at the center of the part has a handle opening, and an opening is formed at the end of the non-sealed space, and a rigid shape-retaining member such as a rigid rod or pipe is inserted into the space. To get it.

The flat liquid passage having the backflow preventive property can be fixed at any position of the seal edge of the liquid containing bag, but in particular, the side seal vertically or through the upper seal edge is close to the side seal. It is preferable that it is horizontal to the upper side of the edge or inclined downward in the bag and fixed at an intermediate position in the lengthwise direction, so that the flat liquid passage has a reinforced shape retention at the protruding part into the bag. In addition, it is easy to maintain a stable backflow prevention property in the vicinity of the upper seal edge, and the protruding portion extending out of the bag is on the upper side of the bag, so that the liquid inflow / outflow operation can be facilitated.

[0009]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the scenes. FIG. 1 is a plan view of a liquid storage bag with a hanging handle, in which the liquid storage bag 1 is formed by stacking two rectangular plastic films and heat-sealing the four edges thereof to form an upper seal edge 4, both side seal edges 5, When the bag is made as the bottom seal edge 6, the non-seal space portion 9 is formed between the outer fusion line portion 2 and the inner fusion line portion 3 which are parallel to each other as the upper seal edge 4 along the upper edge of the bag with a space therebetween. And a flat flow tube 20 made of a plastic film and having a backflow preventing property is inserted vertically at a position close to the side seal edge 5 on the upper edge of the bag before heat sealing, and the upper seal edge 4 Simultaneously with the formation of, the outer and inner fused wire portions 2 and 3 are heat-sealed and fixed.

The flat liquid passage 20 is formed by stacking two rectangular plastic films and heat-sealing both side edges thereof to have a flow path 25 inside. The heat-seal of the upper sealing edge 4 of the bag is described above. On one film surface of the flow path 25 including the portion, a thermal adhesion inhibiting layer made of a cellulose-based ink is formed in advance. Reference numeral 21 is a protruding portion outside the bag, and 22 is a protruding portion into the bag.

The non-sealing space portion 9 of the upper sealing edge 4 of the liquid containing bag 1 manufactured as described above has both side sealing edges 5 cut off to form openings 11 at both ends, and a non-sealing space is also formed. On the central surface of the double-sided film between both ends of the portion 9, a linear opening in the longitudinal direction is provided for the handle 15. Reference numeral 10 is an outflow pipe inserted and housed over substantially the entire length of the non-sealed space portion 9.

FIG. 2 is a plan view of a main part of a liquid containing bag 1 showing another embodiment, in which the flat liquid passage 20 is located on the upper side of the side seal edge 5 near the upper seal edge 4 of the bag. It is fixed in the horizontal direction, and the both side sealing edges 5 of the non-sealing space portion 9 of the upper sealing edge 4 are left as they are, and an opening 11 is formed by cutting out the film on both sides in the vicinity of the one side sealing edge 5. It is exactly the same as the form.

FIG. 3 is a plan view showing a particularly preferable formation of the backflow-preventing flat liquid passage 20 made of a plastic film, in which two square films are superposed on each other to form the sealing edges on both sides thereof. The heat-adhesion inhibiting layer 29 is formed on the inner surface of one of the films in the range including the portion fixed to the heat-sealing edge S of No. 1 and the two backflows are prevented in the flow path of the protrusion 22 into the bag. The film valve bodies 22 and 23 are spaced from each other, and the side edges of the respective tip openings 26 are set as free ends, and the opposite edges thereof are fixed to different liquid passage film surfaces, respectively. B is a width of the liquid passage of the flat liquid passage 20 placed on the protruding portion 21, and the liquid passage is directed toward the tip opening 26 at the protruding portion 22. The threaded line part 27 Is provided.

[0014]

【Example】

 The liquid containing bag 1 is made of a composite film having a thickness of 100 μm, in which a nylon film and a polyethylene film are laminated, and two square films having a length and width of 440 × 300 mm are abutted on each other, and the polyethylene film surfaces are brought into contact with each other. The inner and outer fusion-bonded line portions 2 and 3 were separated from each other by a gap of 60 mm, the respective seal widths were 5 mm, and the both side seal edges 5 and the bottom seal edge 6 had a seal width of 10 mm. .

The flat liquid passage 20 has the structure shown in FIG. 3, and two 80 × 240 mm rectangular films of a 70 μ thick polyethylene film are stacked, and both side edges are heat-sealed with a width of 5 mm. Two thin film valve bodies 23, 24 spaced apart in the flow path 25 on the side of the inward portion of the bag have free ends at the end openings 26 of the flow path 25 in the direction of the front end opening 26, and the opposite end edges are different from each other. Both sides are fixed to both sides of the pipeline on the film surface of the pipeline, and the width of the channel is gradually narrowed toward the tip opening 26 by the fusion line 27. The width B is 70 mm at the outer bag protruding portion 21, becomes gradually smaller at the inner bag protruding portion 22, and is 18 mm at the tip opening 26.

As shown in FIG. 1, the flat liquid pipe 20 is located at a position close to the side seal edge 5 of the upper seal edge 4 in the vertical direction. It is fixed so as to have a protrusion portion 22 of 148 mm inward from the landing portion 3.

The non-sealing space portion 9 of the liquid containing bag 1 has a handle opening 15 in the center thereof, and side seal edges 5 at both ends thereof are cut off to form an opening 11, and an outflow pipe 10 is provided therein. To be inserted and accommodated. As the outflow pipe 10, a pipe made of polypropylene having a length of 290 mm, an outer diameter of 12 mm and a wall thickness of 1 mm was used.

The liquid storage bag with a hanging handle can receive and store the liquid through the flat liquid passage 20, and the contained liquid is sealed without leaking due to the backflow prevention property of the flat liquid pipe 20 and has a reinforced shape retention property. The upper seal edge 4 has a stable hanging part formed by the outflow pipe 10 inserted in the non-sealing space 9, so that the inflow of the liquid and its transportation are easy, and the outflow pipe 10 is flat. By leaking from the outer peripheral surface of the outflow pipe 10 by inserting it into the liquid pipe 20, releasing its backflow prevention property, and closely inserting the pipe tip into the tip opening 26 of the flattened liquid pipe 20. It is possible to carry out the outflow of the stored liquid.

[0019]

[Effect of the invention]

 As described above, according to the present invention, in the liquid containing bag made of plastic film, the upper seal edge is reinforced and shaped by the inner and outer fusion bonding lines, and the outflow pipe is inserted into the non-seal space. As a result, a stable and strong hanging part is formed, and the liquid flow-in and out by the flat flow tube made of plastic film with backflow prevention and the sealing of the stored liquid can be easily and surely made. It can be used as a supply bag, or as a water bag for waterproofing or as a portable liquid storage bag.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment.

FIG. 2 is a plan view of a main part showing another embodiment.

FIG. 3 is a plan view of a flat liquid pipe made of a plastic film having a backflow preventing property.

[Explanation of symbols]

 1 Liquid Storage Bag 2 Outer Fusing Line Part 3 Inner Fusing Line Part 4 Upper Seal Edge 5 Side Seal Edge 6 Bottom Seal Edge 9 Non-Seal Space Area 10 Outflow Pipe 11 Opening 15 Handle Opening 20 Flat Liquid Pipe 21 Projection 22 Entry portion 25 Flow path 26 Tip opening B Flow path width S Seal edge

Claims (4)

[Utility model registration claims] 1. In a liquid containing bag (1) made of a plastic film, a flat flow-through pipe (20) made of a plastic film for communicating the inside and outside of the bag with a part of a sealing edge (S) at the periphery of the bag and having a backflow prevention property ) Is fixed, and a non-sealing space part (8) is provided between the outer fusion line part (2) and the inner fusion line part (3) which are parallel to each other with a space along the upper edge of the bag. An upper sealing edge (4) is formed, and an opening (11) is formed at the end of the non-sealing space (8) and a handle opening (15) is formed in the center of the non-sealing space. Liquid storage bag with hanging handle. 2. The liquid with a handle according to claim 1, wherein an outflow pipe (10) to be inserted into the flat liquid pipe (20) is inserted and housed therein over substantially the entire length of the non-sealed space (8). Storage bag. 3. The flat liquid passage (20) has a liquid containing bag (1).
Midway along its length, either vertically through the upper seal edge (4) or downward through the upper side of the side seal edge (5) close to the upper seal edge (4) horizontally or into the bag. The liquid storage bag with a handle according to claim 1, wherein the liquid storage bag is fixed to the bag. 4. A liquid passage width (B) of the flat liquid passage (20).
Is wider in the protruding portion (21) outside the bag, and is gradually narrowed toward the narrow end opening (26) in the protruding portion (22) into the bag. The liquid storage bag with a hanging handle according to any one of the above.