KR102301107B1 - Folderable and reusable cool bag - Google Patents

Abstract

The present invention relates to a reusable and foldable cold storage bag that can be easily folded and stored in a small space when not in use. Specifically, the cold storage bag can be folded to be one side for simple storage and can be easily unfolded during use. In addition, the cold storage bag can increase loadability of the cold storage bag by a simple coupling structure and maintain coolness for a long time.

Description

Reusable and reusable cool bag

The present invention relates to a reusable cooling bag, and more particularly, to a reusable cooling bag having excellent storability after use because it is easy to fold.

In recent years, as the daily temperature is rising due to global warming, and eco-friendly and human-friendly foods with reduced content of preservatives such as organic foods have appeared on the market, it has become difficult to maintain the freshness for a relatively long time. Even under such circumstances, outdoor cooking or camping has become a culture today, and babies are often fed with baby food. Therefore, the utilization of an insulated bag that is fresh and convenient to move by maintaining cool air is becoming more important than ever.

What's more, as online and mobile channels expand, fresh food delivery is getting closer to consumers, social distancing is strongly recommended due to the recent coronavirus-19, and using delivery rather than buying groceries in-store is encouraged. is becoming The most important thing in the delivery of fresh food is to maintain the temperature of the food. Accordingly, many companies use cold storage paper boxes or Styrofoam boxes to deliver fresh food, and it is common to put several ice packs or ice packs inside with the ingredients ordered by the consumer. Although these boxes have excellent thermal insulation and cooling power, they are generally used for single use, thereby rapidly increasing the amount of waste including recycling. In addition, these boxes have a disadvantage in that they are difficult to separate and store, so they take up a lot of space during storage, and the Styrofoam box emits a lot of Styrofoam powder even in the process of opening it, which is not only bad for hygiene but also cumbersome.

Accordingly, some companies, including E-Mart, are providing reusable insulated bags free of charge only once, and the positive response to them is considerable. However, since such an insulated bag does not have a rigid configuration, it is impossible to load items neatly and firmly on the upper part, and even if it is loaded, the upper part cannot overcome the weight, so it is impossible to completely protect stored foodstuffs such as fruits or milk. Also, when storing without using an insulated bag, it is difficult to organize due to its large volume, or it is difficult to organize by folding it neatly even if it is folded.

An object of the present invention is to solve the problems of the above-mentioned cold insulation paper box and Styrofoam box and the problems of the multi-use insulated bag, and to provide a collapsible cold storage bag that can be used in a variety of ways. Specifically, an object of the present invention is to provide an insulated bag with improved loadability and improved storage when not in use by making it easy to fold.

According to another embodiment of the present invention, an object of the present invention is to provide a method for easily manufacturing the cooling bag.

According to one embodiment of the present invention,

The first side and the second side are installed on a pair of opposite side ends of the lower surface so that they can be folded over the lower surface, and the front and rear portions are installed at the other pair of opposite side ends of the lower surface, the rear portion on which the lower surface is installed The upper surface part is installed on one side end other than the side end,

A folded portion is formed at one end or both ends in the longitudinal direction of the first side and the second side,

The folded part is integrally formed with the front part or the rear part by the fold line,

There is provided a foldable cooling bag, characterized in that the joint formed in the folded portion and the joint formed on the inner surfaces of the front and rear portions are joined to each other to form a bag.

According to another embodiment of the present invention,

(a) providing a first surface layer;

(b) dividing the upper surface portion, the lower surface portion, the first side portion, the second side portion, the front portion, the lower surface portion and the folded portion into the first surface layer;

(c) providing a support and a thermal barrier layer in each partition divided on the first surface layer;

(d) covering the second surface layer;

There is provided a method for manufacturing a foldable insulated bag, comprising the step of (e) fusing the first surface layer and the second surface layer along the boundary line and the fold line of each compartment.

The foldable cold storage bag according to an embodiment of the present invention can be easily and flatly folded when not in use, so it does not occupy a large volume and can be easily stored. do.

In addition, since each wall of the bag includes supporters, the shape of the bag can be supported, and even if another bag is loaded on the bag, the shape of the bag can be maintained by distributing the load to other supports, thereby maintaining the shape of the contents. .

In addition, by installing a divider inside the bag, refrigeration and freezing can be separated and stored.

In addition, the handle can be made due to the simple fastening structure and the fastening string, and the load can be securely loaded without collapsing through the fastening between the bags during loading.

In addition, the thermal insulation layer, the ice pack receiving part, the heat absorbing member, etc. have better cooling properties, so that the freshness of the food can be maintained even after a considerable period of time has elapsed.

The foldable cooling bag according to another embodiment of the present invention is formed on one side, so it can be easily manufactured by a fusion method without sewing.

1 is a schematic view of the foldable cooling bag of the present invention folded on one side.
Figure 2 is a schematic diagram of the unfolding process of the cooling bag of the present invention.
3 is a schematic diagram of the form in which the cooling bag of the present invention is completely assembled into a bag.
4 is a view showing various embodiments of the cooling bag of the present invention by a fastening member and a fastening string.
5 is a view showing the configuration of one surface of the cooling bag of the present invention.
Figure 6 is a schematic view of the divider installed inside the cooling bag of the present invention.
7 is a view showing various embodiments in which the divider is installed inside the cooling bag of the present invention.
8 is a flowchart for a method of manufacturing the cooling bag of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the following description describes the present invention by way of specific examples, and the technical spirit of the present invention is not limited to the following description. And the accompanying drawings are provided to help the understanding of the present invention, and the technical spirit of the present invention is not limited to the accompanying drawings. In addition, in the drawings, the thickness or size of each member may be exaggerated, omitted, or schematically illustrated for convenience of description.

Unless otherwise specified, in the description of the structure of the present invention described herein, the positional relationship or direction is based on the drawings attached to the present specification.

In the present invention, it should be understood that what is described as “first” or “second” is only for distinction, not for specific purpose.

1 is an exploded view in which the cooling bag 100 is completely folded according to an embodiment of the present invention. The first side 120 and the second side 120 may be installed on a pair of opposite side ends of the lower surface part 110, and the front part 130 and the rear part ( 140) may be installed. Among the side ends of the rear part, the upper surface part 150 may be installed at one side end other than the rear part side end where the lower surface part is installed, and more preferably, the lower surface part and the upper surface part may be installed to face each other at the opposite side ends of the rear part.

In addition, folded portions 121a , 121b , 121c , and 121d may be formed at one or both ends of the first side 120 and the second side 120 in the longitudinal direction. The folded portion may be formed integrally with each surface to be joined. Specifically, the folded part may be integrally coupled to the front part or the rear part based on the fold lines 122a, 122b, 122c, and 122d.

According to this structure, the first side 120 and the second side 120 may be folded and superimposed on the lower surface. At this time, the height length of the first side surface 120 and the second side surface 120 may be formed to be less than the horizontal length of the lower surface portion (110). That is, when one side is folded, since the width of the lower surface portion 110 is not exceeded, the first side 120 and the second side 120 are overlapped to facilitate storage, and the height is increased to increase the storage capacity of the insulated bag. can increase

According to another embodiment, the sum of the height and length of the first side 120 and the second side 120 may be formed to be less than or equal to the horizontal length of the lower surface portion 110 . That is, since the width of the lower surface portion 110 is not exceeded even when both sides are folded, storage is facilitated when not in use, and each side can form a more organic bonding relationship. The cooling bag can be installed and folded more easily.

According to another embodiment,

The surface on which the first side 120 or the second side 120 and the bonding is to be made is the front part 130 or the rear part 140 , and specifically, when the first side 120 is bonded to the front part 130 , , the second side 120 is bonded to at least the rear portion 140 , and when the second side 120 is bonded to the front portion 130 , the first side 120 is at least the rear portion 140 and bonding is made More specifically, both the first side 120 and the second side 120 may be bonded to the front part 130 and the rear part 140 . Through this, even if either one of the first side 120 or the second side 120 is erected in order to have a bag shape, the other side forming the height of the bag is naturally built together, and bonding can be facilitated. In addition, the handle 123 may be installed on the outer surface of the first side 120 or the second side 120 . According to this, one side or both sides 120 is easily erected through the handle 123, and then the front part 130 and the rear part 140 are naturally erected, so installation may be easier, and using the handle 123 The bag is easy to carry.

According to one embodiment of the present invention,

The bonding of each surface may be made of at least one of bonding by Velcro 170 , bonding by zipper, bonding by magnetic force, and bonding by male and female bonding, but is not limited thereto. In the case of joining by Velcro, the weight of the cooling bag can be reduced and joining can be easy, and joining by zipper can be joined more strongly, and joining by magnetic force is easy and can always match a certain joining position. , fastening by male and female coupling can be easily coupled with only a small amount of pressure, and the shape can be maintained strongly. Specifically, the fastening by the male-female coupling may be the fastening by the buckle. In addition, the fastening between the upper surface and both sides, the front part and the rear part may include a locking device. Specifically, the locking device may be to install a lock on different zippers, such as a travel carrier.

3 is an exploded view of a form in which the cooling bag is assembled into a bag according to an embodiment of the present invention, and FIG. 4 is an embodiment of the cooling bag according to the fastening member of the present invention. Referring to FIG. 4A , a plurality of fastening members 124 may be formed on a pair of opposing side surfaces. Specifically, a plurality of fastening members 124 may be formed on at least one of a pair of the first side 120 and the second side 120 and the other pair of the front side 130 and the rear side 140 . The fastening member 124 may be formed by male and female coupling. The fastening member 124 may be fastened to the fastening string 125 . The fastening string 125 may be adjustable in length. More specifically, the fastening members 124 may be fastened to both ends of the fastening string 125 , and may be fastened to the opposite fastening members of the cooling bag, or to the fastening members 124 installed diagonally.

Referring to Figure 4a, the fastening strap fastened to the fastening member can be used as a handle, it can be worn on the shoulder. In addition, referring to FIG. 4b , by adjusting the length of the fastening string, the upper surface portion is pressed so that the upper surface is not opened, thereby improving the coolness. Referring to Figure 4c, when loading a plurality of the cooling bag of the present invention, the fastening can be made between the fastening members of different bags so as to be securely loaded, according to another embodiment, the fastening members of different bags using a fastening string and It can be fastened and the length can be adjusted so that different cooling bags are not loaded loosely so that they can be loaded without shaking. According to this, it is possible to further increase the coolness by the interaction between the different cold storage bags by loading.

5 is a view showing the configuration of one surface of the cooling bag according to an embodiment of the present invention. 5, the surface layer exposed to the outside is composed of a bag inner surface layer 101 and a bag outer surface layer 102. . Specifically, the surface layers 101 and 102 may be formed of a general polymer resin composition, a fiber material, or a combination thereof. More specifically, the polymer resin composition includes a polyethylene-based composition, a polypropylene-based composition, an ABS resin-based composition, an AES resin-based composition, an AS resin-based composition, an acrylic resin-based composition, a polystyrene-based composition, a polyvinyl chloride-based composition (ex. tarpaulin), Polymethylpentene-based composition, polyamide-based composition, polyethylene terephthalate-based composition, polyarylate-based composition, polyacetal-based resin composition, polycarbonate-based composition, polyphenylene ether-based composition, polysulfone-based composition, polyphenylene sulfide-based composition composition, polyethersulfone-based composition, polybutadiene-based composition, and polyformaldehyde-based composition may be at least one selected from the group consisting of, or a copolymer thereof or a modified product thereof. In addition, the surface layers 101 and 102 may be a material that is water-repellent, such as a water-repellent coating. That is, it is possible to solve problems such as the moisture vapor condensing due to the cold air inside the cooling bag, causing the inner surface to become wet and smelly, and to prevent the outer surface layer 102 from getting wet by the heat absorbing member to be described later.

According to another embodiment of the present invention, the one-surface configuration of the cooling bag may further include an antibacterial functional material. For example, an antibacterial component may be further included in at least one material of the inner surface layer and the outer surface layer, and for example, a film or sheet containing an antibacterial component in at least one of the inner surface layer and the outer surface layer may be further included. Specifically, the antibacterial component may be a natural material, may be an antibacterial resin composition, may be an antibacterial metal, or may be a combination thereof.

More specifically, the antimicrobial metal is a metal exhibiting antimicrobial activity, and may be a metal capable of killing or inhibiting microorganisms. The metal may be a safe metal that has toxicity to microorganisms and is not harmless or toxic to the human body at the same time. In one embodiment, the antimicrobial metal may be silver (Ag), copper (Cu), gold (Au), platinum (Pt), manganese (Mn), zinc (Zn), or a combination thereof. The antimicrobial metal may be a monovalent, divalent, trivalent, or tetravalent cation of the above-mentioned metals such as silver ion (Ag ⁺ ), copper ion (Cu ²⁺ ), gold ion (Au ³⁺ ), platinum ion (Pt) ⁴⁺ ), manganese ions (Mn ²⁺ ), and zinc ions (Zn ²⁺ ) may be included.

For example, the antimicrobial metal may be silver (Ag) or copper (Cu). Silver (Ag) is harmless and non-toxic to the human body, and it is known that it kills various kinds of harmful bacteria by inhibiting the metabolic function of microorganisms in various ways. In particular, in the case of silver (Ag) used as an antibacterial agent, it has excellent antibacterial activity, is non-toxic and non-irritating to the human body, has chemical durability and excellent heat resistance. great. Silver ions (Ag+) emitted by the metal silver (Ag) are known to have antibacterial and bactericidal effects by affecting the reproductive function of microorganisms due to their electrical ability. Copper (Cu), like silver, is known to have an intrinsic antibacterial action. Such a metal-based antibacterial material may be used for the purpose of preparing for and treating infectious diseases caused by microorganisms.

Accordingly, it is possible to prevent contamination due to leakage of contents that may occur during delivery or contamination due to exposure to microorganisms, bacteria, fungi, algae, or viruses.

In addition, the support 103 may be included in the surface layer. Specifically, when assembled to store things, a relatively rigid support 103 capable of maintaining its shape may be included on each side of the cooling bag, and the surface layers 101 and 102, which are fiber materials, may have a structure surrounding it. . The shape of the insulated bag can be maintained by the support 103, and even when other objects or the same cooling bag are loaded on the upper part, the shape can be maintained to completely protect the internal storage. Specifically, even when a heavy object is loaded, the upper support can support the weight and at the same time distribute the load to the side support, so that it can withstand a considerable weight. That is, it is sufficient if the support 103 can withstand a certain level of load to maintain its shape.

According to another embodiment, the thermal barrier layer 104 may be installed inside the surface layer. The thermal barrier layer 104 is sufficient as long as it is a material that prevents external heat from entering the interior and prevents internal cold air from exiting to the outside. Specifically, the thermal barrier layer 104 may include an inorganic oxide, an organic compound, or the like. The inorganic oxide may consist of one or two or more selected from the group consisting of antimony oxide, indium oxide, zinc oxide, and aluminum oxide, but is not limited thereto. In addition, examples of the organic compound include, but are not limited to, dimonium, phthalocyanide, hexaboride, and the like. According to another embodiment, the thermal barrier layer 104 may include a plurality of pores. Heat conduction is made more difficult due to the plurality of pores, making it difficult for internal cold air to go out, and for external warmth to become difficult to enter.

According to another embodiment, the bag inner surface layer 101 may include a receiving part (not shown). The accommodating part may be an ice pack accommodating part in which a material such as an ice pack capable of providing cool air to the inside of the bag, such as an ice pack, is accommodated.

According to another embodiment, a detachable heat absorbing member (not shown) may be installed on the outer surface layer. The heat absorbing member may supplement the temperature maintenance performance of the cool bag 100 by reducing the external temperature of the cool bag 100 . The heat absorbing member may include a body and a porous material filled in the body. The body may be formed in a plate shape or a box shape, and may be formed of a gas-permeable material. The gas-permeable material may use a gas-permeable material commonly used, but is not limited to a specific material. Examples of the gas-permeable material include synthetic resin materials such as nonwoven fabric, hollow fiber, polypropylene, polypropylene film, polyethylene, polyethylene terephthalate, nylon, ethylene vinyl acetate, ethylene vinyl alcohol, and polyvinyl chloride.

The porous material is filled inside the body and may be used without limitation as long as a plurality of pores are formed on the surface. Examples of the porous material include zeolite, sponge mesoporous silica, and a porous metal material. A heat absorbing material is supported in the pores of the porous material. The endothermic material refers to, for example, a material that reacts with water to cause an endothermic reaction. Examples of endothermic substances include inorganic salts; inorganic ammonium salts such as ammonium nitrate, ammonium sulfate, acid ammonium sulfate, ammonium phosphate, diammonium hydrogen phosphate, ammonium metavanadate, ammonium chloride, ammonium bromide, and ammonium iodide; or alkali metal salts such as sodium nitrate and potassium nitrate; metal nitrate; and urea (urea), and the like, but are not limited to those listed above.

A bonding portion (not shown) may be formed on the rear surface of the body of the heat absorbing member formed in this way so as to be detachably attached to the cooling bag 100 .

When such a heat absorbing member is attached, when a small amount of water is supplied to the heat absorbing member, the heat absorbing materials supported on the porous material filled inside the body react to cause an endothermic reaction. Specifically, the endothermic reaction occurs while the endothermic materials are vaporized, thereby reducing the ambient temperature of the cooling bag 100 by 2 to 5°C. can be emitted. Therefore, the cooling effect of the cooling bag 100 can be increased by reducing the external temperature of the cooling bag 100 . In addition, since the surface layer is waterproof, supplying a small amount of water to the heat absorbing member does not affect the cooling bag 100 and the products contained therein. According to another embodiment, the heat absorbing member may further include an ice loading unit. When ice is loaded, not only does the ice itself increase the coolness, but water generated by melting the ice is provided to the heat absorbing member, so that an endothermic reaction can occur naturally. In addition, water can be continuously provided during the time the ice melts to maintain the coolness of the heat absorbing member for a long period of time.

6 and 7 show a form in which the divider 160 according to an embodiment of the present invention is formed. The divider 160 is installed to be detachably attached to the inside of the cooling bag, and serves to divide the inner space into two or more. That is, the space can be divided so that different objects do not mix, and objects having different storage environments such as temperature and humidity can be divided and stored. For example, by separately storing food to be refrigerated and food to be kept frozen, it is possible to enable storage and movement in a state in which each food can maintain the freshest form, respectively. It is sufficient that the divider 160 has a shape capable of separating a space. The divider 160 may include a rigid support, may include a heat-blocking material, and may have an ice pack receiving portion formed on one surface thereof.

According to another embodiment, the divider may be attached to cover and seal the inside when the food is stored inside the bag. Specifically, the divider may include a sealing member 161 . The sealing member 161 may be a device for increasing the sealing force to create different environments between the divided compartments when the compartment inside the cooling bag is divided by the divider 160 . It is sufficient if the sealing member 161 applies pressure to the divider 160 . Specifically, the sealing member 161 may be a string having elasticity. More specifically, by pulling and fixing it, the divider 160 is subjected to pressure and may be sealed. It is sufficient if the sealing member 161 applies pressure to the divider 160 . Specifically, the sealing member 161 may be a string having elasticity. More specifically, by pulling it and fixing it by a fixing member, the divider 160 is subjected to pressure and may be sealed.

On the other hand, the foldable cooling bag according to the present invention is

(a) providing a first surface layer;

(b) dividing the upper surface portion, the lower surface portion, the first side portion, the second side portion, the front portion, the lower surface portion and the folded portion into the first surface layer;

(c) providing a support and a thermal barrier layer in each partition divided on the first surface layer;

(d) covering the second surface layer;

(e) may be prepared by fusing the first surface layer and the second surface layer along the boundary line and fold line of each compartment.

The first surface layer and the second surface layer may be an inner surface layer and an outer surface layer. Specifically, the first surface layer may be the inner surface layer 101, the second surface layer may be the outer surface layer 102, or the first surface layer may be the outer surface layer 102, and the first surface layer may be the inner surface layer 101 can

The boundary line may mean a boundary and an edge between the components of the cooling bag of the present invention, such as an upper surface part, a lower surface part, a front part, a lower surface part, a first side part, and a second side part.

The fold line may mean a part that needs to be folded according to the implementation principle of the cooling bag of the present invention. Specifically, it may be the boundary and the fold lines 122a, 122b, 122c, and 122d of each surface.

The fusion may be at least one of thermal fusion, high frequency fusion, and ultrasonic fusion, but is not limited thereto.

100: cold bag
101: inner surface layer 102: outer surface layer 103: support 104: thermal barrier layer
110: lower part
120: side part 121: fold part 122: fold line 123: handle
124: fastening member 125: fastening string
130: front 140: rear 150: upper surface
160: divider 161: sealing member
170: Velcro

Claims (10)

The first side and the second side are installed on a pair of opposite side ends of the lower surface to be folded over the lower surface, the front part and the rear part are installed on the other pair of opposite side ends of the lower surface part, and the rear part on which the lower surface part is installed The upper surface part is installed on one side end other than the side end,
A folded portion is formed at one end or both ends in the longitudinal direction of the first side and the second side,
The folded part is integrally formed with the front part or the rear part by the fold line,
In the foldable cooling bag formed by joining the joint formed in the folded portion and the joint formed on the inner surfaces of the front and rear parts to each other to form a bag,
The sum of the height lengths of the first side and the second side is formed to be less than or equal to the horizontal length of the lower surface,
The surface layer of the cooling bag is composed of a polymer resin composition, a fiber material, or a combination thereof, is waterproof, and includes a heat barrier layer and a support between the inner surface layer and the outer surface layer,
an ice pack receiving part on the inner surface layer;
Including a heat absorbing member detachable to the outer surface of the cooling bag,
It includes a handle on the outer surface of the first side and the second side,
Folding insulated bag further comprising a locking device. delete delete The method of claim 1,
The heat absorbing member includes a body formed of a gas-permeable material, a porous material filled inside the body, a heat absorbing material is supported in pores of the porous material, and an ice loading unit. 5. The method of claim 4,
A plurality of fastening members are formed on the outer surfaces of the first side and the second side,
Further comprising a fastening string that can be fastened with different fastening members,
The fastening strap is adjustable in length, a foldable cold storage bag. 6. The method of claim 5
A detachable divider is formed inside the first side and the second side facing each other or the front side and the rear side facing each other,
The divider includes a heat-blocking material, a foldable cold storage bag. 7. The method of claim 6
The divider further comprises a sealing member,
The sealing member is a foldable cooling bag comprising a string and a fixing member having elasticity. 8. The method of claim 7
Further comprising a film containing an antibacterial component in at least one of the inner surface layer and the outer surface layer,
The antibacterial ingredient is silver (Ag), copper (Cu), gold (Au), platinum (Pt), manganese (Mn), zinc (Zn), or a combination thereof. delete delete

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