Cooler bag

The cooler bag with a multi-layered fabric design addresses the challenge of maintaining cold temperatures and portability by providing double insulation and secure handling for cooler containers, ensuring prolonged cooling and ease of use in outdoor settings.

JP2025121099APending Publication Date: 2025-08-19YAMASHIN SEIKYO

Patent Information

Application Number
JP2024016322
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-02-06
Publication Date
2025-08-19

AI Technical Summary

Technical Problem

Existing cooler containers for PET bottles are inadequate in extreme heat conditions and are bulky, making them difficult to carry, while solutions that enhance cooling functionality increase size and weight, and there is a need for a compact and efficient cooling solution for outdoor use.

Method used

A cooler bag with a multi-layered fabric construction, including an exterior polyester fabric and aluminum-coated interior, designed to wrap a cooler container, providing double insulation and easy handling, with features like handles, pockets, and a lid that keeps the container secure and prevents rattling.

Benefits of technology

The cooler bag effectively maintains the cold temperature of PET bottles for extended periods, is compact and easy to carry, and can accommodate various items, offering versatility beyond just PET bottles, while maintaining structural integrity during transport.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a new cooler bag to replace a frozen plastic bottle with a new one regardless of locations, since water circulating through a tube laid in a cooling garment hits and cools the plastic bottle, and the cooling effect is lost when the drink or the like in the plastic bottle is completely melted.SOLUTION: A cooler bag 1 includes: a storage body 3 and a lid body 35. The storage body 3 is configured a multi-layer fabric 9 in which an exterior material 5 made of polyester fabric and an interior material 7 made of an aluminum-coated fabric with a heat insulating property are layered together; and a space-maintaining sheet inserted into a bottom part 11. The lid body 35 is also configured in the same manner as the bottom part 11 and is opened and closed by a wire fastener 37. A cooler container 39 containing four PET bottles P can be smoothly taken in and out, and no rattle occurs when stored. The PET bottle P in the cooler container 39 is doubly insulated by the cooler bag 1, so that it can be kept frozen for a long time even in an extremely hot outdoor environment.SELECTED DRAWING: Figure 2
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Description

[Technical Field]

[0001] The present invention relates to a cooler bag suitable for storing a cooler container of a specific size, such as a cooler container for a PET bottle, and providing double cooling. [Background technology]

[0002] The cooling garment described in Patent Document 1 has tubes that are exposed on the inner surface. A storage compartment is attached to the outer surface of the back of the garment, and stores beverages or frozen PET bottles. The tubes and the storage compartment are connected, and when a pump is activated, the water in the tubes flows into the storage compartment, where it hits the PET bottles and is cooled, before returning to the tubes. Therefore, if the beverage or other liquid inside the PET bottle melts completely, the cooling effect is lost and it is necessary to replace the bottle with a new one. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-11483 [Patent Document 2] Japanese Patent Application Publication No. 2023-26710 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in outdoor work sites and the like, it is not possible to have a freezer, and there are often no stores nearby where frozen drinks or the like can be purchased in plastic bottles. Patent Document 2 describes a cooler container for PET bottles, but its cooling function may be insufficient in extreme heat. On the other hand, the cooler container is constructed with a rigid specification and equipped with a vacuum insulation layer, and further strengthening the cooling function would increase the size and weight, making it difficult to carry on-site, which is undesirable.

[0005] The present invention has been made in light of the above-mentioned conventional problems, and its object is to provide a new and useful cooler bag that can be used to wrap a rigid cooler container such as a cooler container for PET bottles in a cover-like shape, effectively providing double cooling functionality, while being compact and easy to carry. [Means for solving the problem]

[0006] The present invention provides an insulated bag comprising a cylindrical storage body with a bottom made of fabric, a lid for opening and closing the upper opening of the storage body, a linear fastener attached to the opening edge of the storage body and the outer edge of the lid, a pair of handles facing the outer surface of the storage body, and a pocket and a hanging part attached to the outer surface of the storage body, wherein the storage body is sized to allow insertion and removal of a cooler container of a specific size and rigidity specifications without rattling.

[0007] Preferably, a pair of strips of material, each with its ends pressed against the outer surface of the storage body to form an inverted U-shape, a strip of material straddling the two ends and pressed completely against the outer surface of the storage body in its entire circumferential direction to form a ring, and a strip of material pressed intermittently against the outer surface of the ring-shaped strips in its entire circumferential direction, with a gap between them separating them from the outer surface, are sewn together and integrated with the outer surface of the storage body, and the handle is formed from the inverted U-shaped strips, and the hanging part is formed from the strip of material forming the gap.

[0008] Preferably, an external pocket is provided below the hanging portion and opens upward.

[0009] Preferably, a fabric material longer than the entire circumference of the storage body is formed into a ring around the outer surface of the storage body, and the fabric material is sewn to the outer surface of the storage body in lines in the vertical direction at circumferential intervals to form partitions, and the lower edge side of the fabric material is folded in pleats against the partition and sewn to the outer surface of the storage body, forming a plurality of external pockets using the fabric material as an outer bag cloth.

[0010] Preferably, the fabric forming the exterior of the storage body is used as the outer bag fabric to form the external pocket.

[0011] Preferably, the cooler container has a storage body capable of storing multiple PET bottles filled with freezable liquid, a lid body for opening and closing the opening of the storage body, and a lid body fixing means for fixing the lid body to the body with the opening closed, and the outer edge of the upper surface of the lid body is a stepped portion that is one step lower than the inside, and a pair of opposing handles are movable between a state in which they are stored in the stepped portion and a state in which they are undulating upward, and when the cooler container is stored in the cooler bag with the handles stored in the stepped portion, the lid body of the cooler bag is kept flat. [Effects of the Invention]

[0012] The cooler bag of the present invention can be used to wrap a rigid cooler container such as a cooler container for PET bottles in a cover-like shape, effectively providing double cooler function while being compact and easy to carry. Furthermore, although the size has been adjusted to accommodate a specific PET bottle cooler container, the container is not limited to PET bottle coolers, and pockets etc. can be provided on the exterior, making it convenient for other uses as well. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a perspective view of a cooler bag according to an embodiment of the present invention. [Figure 2] 2 is a perspective view of the cooler bag of FIG. 1 with the lid open. FIG. [Figure 3] FIG. 3 is a perspective view of the empty cooler bag after the cooler container for PET bottles has been removed from FIG. 2. [Figure 4] FIG. 3 is a perspective view of the cooler container taken out from FIG. 2. [Figure 5] 5 is a perspective view of the cooler container of FIG. 4 with the lid removed. FIG. [Figure 6]FIG. 4 is a perspective view of the cooler bag of FIG. 3 in a folded state. DETAILED DESCRIPTION OF THE INVENTION

[0014] A cooler bag 1 according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, this cooler bag 1 comprises a cylindrical storage body 3 with a bottom, and a lid 35 for opening and closing the upper opening of the storage body 3. The storage body 3 is made of a multi-layer fabric 9, which is made by overlapping an exterior material 5 made of polyester fabric and an interior material 7 made of aluminum-coated fabric with heat insulation properties, with the circular cut portion being the bottom portion 11 and the rectangular cut portion having opposing edges sewn together to form a cylindrical shape being the side portion 13. A shape-retaining sheet (not shown) is inserted into the bottom portion 11 to give it a certain degree of rigidity and make it difficult to bend.

[0015] The exterior material 5 alone forms the bag cloth of the external pocket 15 . The exterior material 5 is cut into a square shape and sewn at opposing edges to form a tube that surrounds the side surface 13 of the housing body 3 from the outside. The circumferential length of the exterior material 5 is longer than the circumferential length of the side surface 13, but the exterior material 5 is sewn linearly in the up-down direction against the outer surface of the side surface 13 at regular circumferential intervals with the lower edge of the exterior material 5 aligned with the lower edge of the side surface 13. This linear stitching forms circumferential partitions 15a.

[0016] Between two circumferentially adjacent partitions 15a, the circumferential length of the exterior material 5 is longer than the circumferential length of the side portion 13, but on the lower edge side, it is folded toward the partition 15a to form pleats, and the circumferential length of the lower edge of the exterior material 5 is matched to the circumferential length of the side portion 13. The lower edge of the bag is aligned with the lower edge of the side surface portion 13, and is also aligned with the outer edge of the bottom surface portion 11. These aligned edges are wrapped from the outside with a band tape 17 and sewn together to form the storage body 3 and the external pocket 15. The inner bag fabric of the external pocket 15 is made up of the exterior material 5 on the side of the multilayer fabric 9 of the side surface portion 13. The plurality of external pockets 15, 15, . . . are adjacent to each other in the circumferential direction with a partition 15a sandwiched between them.

[0017] The external pocket 15 is open upward at a height approximately half the height of the side surface 13 of the storage body 3. The pleats of the exterior material 5 forming the outer bag cloth open upward, so the pocket opening widens outward.

[0018] Above the external pockets 15, 15, ..., a plurality of strips made of nylon material are attached. Both longitudinal ends of the strips 19, 19 are abutted against the outer surface of the side surface 13, forming an inverted U-shape, and the length is adjusted so that when the top of the inverted U-shape is pulled upward, it will be above the upper opening of the storage body 3. A pair of strips 19, 19 are positioned opposite each other with the side surface 13 in between, forming a pair of handles 21, 21.

[0019] The middle portions of the strips 19, 19 are folded in half to narrow the width, and as shown in Figure 6, a rectangular holding portion 23 made by joining small pieces of outer material 5, 5 is sewn to the middle portion of one of the strips 19, spanning the strip 19 in the width direction, to form an integrated unit, and hook portions 25a and loop portions 25b of a hook-and-loop fastener 25 are attached to both sides of the spanning portion. Therefore, by bringing the pair of handles 21, 21 together, wrapping them with the holding portion 23, and overlapping and closing the hook-and-loop fastener 25, the pair of handles 21, 21 can be bundled together so that they are easy to hold.

[0020] A band-like element 27 of the same width is attached to the outer surface of the side portion 13 across the entire periphery, straddling and covering both ends of the band-like elements 19, 19. Another band-like element 29, slightly narrower in width, is also attached to the outer surface of the band-like element 27, forming a ring. The circumferential length of the band-like element 29 is longer than that of the band-like element 27, and the band-like element 29 is intermittently attached to the outer surface of the band-like element 27 at regular circumferential intervals, sewn linearly in the up-and-down direction. The linear stitching 29a separates the band-like element 29 from the band-like element 27, and the linear stitching 29a supports the adjacent linear stitching 29a in the circumferential direction, forming a bracket-like hanging element 31. The hanging element 31 is spaced apart from the base band-like element 27 at its intermediate position, leaving a gap between the base band-like element 27 and the hanging element 31. Multiple hanging elements 31, 31, ... are arranged in a circumferential direction. The upper opening of the external pocket 15 faces the lower side of this hanging portion 31. The strips 19, 27, 29 are joined to the outer surface of the side portion 13 by sewing in the above-mentioned positional relationship, and are integrated.

[0021] The upper edge of the side surface portion 13 is divided into the interior material 7 side and the exterior material 5 side, and the upper edge on the interior material 7 side is wrapped in a band tape 33 and sewn on. The lid 35 is formed in a disk shape similar to the bottom surface portion 11 of the storage body 3. However, the edge on the interior material 7 side is wrapped in a band tape 33 and sewn on. A wire fastener 37 is attached to the upper edge of the exterior material 5 on the side surface portion 13 side, that is, straddling the opening edge of the housing body 3 and the outer edge of the lid body 35. The base end of the linear fastener 37 is fixed, and even when the linear fastener 37 is opened and fully opened, the lid body 35 remains connected to the side surface portion 13.

[0022] Cooling bag 1 is configured as described above and has a size suitable for accommodating cooling container 39 for PET bottles. 4, cooler container 39 is made of metal and plastic and is composed of a substantially cylindrical storage body 41 with a bottom, and lid 43 that is closed by being placed over the open upper edge of storage body 41 and screwed in place, and when closed, the outer surface of lid 43 is substantially flush with storage body 41. In addition, a step 43a is formed along the outer edge of the top surface of lid 43, making the outer edge side one step lower.

[0023] A pair of handles 45, 45 are attached to the lid 43. The rod-shaped handle 45 is curved in a semicircular arc and is supported by shafts connected to both ends so that it can rotate freely relative to the lid 43. By rotating, the handle 45 can be moved from a state in which it is collapsed and stored in the step portion 43a to a state in which it is raised and stands up from the top surface of the lid 43. The pair of handles 45, 45 are attached to the lid body 43 in a positional relationship opposite to each other, and the stepped portion 43a is divided into semicircular arcs and is used for storage.

[0024] The storage body 41 of the cooler container 39 has a vacuum insulation layer as an intermediate layer, which keeps the contents stored therein cool. 5, this cooler container 39 can simultaneously accommodate four 650 ml PET bottles P. PET bottles P of this size are suitable for use in the cooling garment described in Patent Document 1. The size of the inside of the cooler bag 1 is set to be slightly larger than the outer shape of the cooler container 39, so that the cooler container 39 can be smoothly taken in and out of the cooler bag 1 while standing upright.

[0025] When the cooler container 39 is placed in the cooler bag 1, as shown in Fig. 2, the handles 45, 45 can be folded down and stored in the stepped portion 43a of the lid 43, so that the handles 45, 45 fit inside the lid 43. Therefore, as shown in Fig. 1, the lid 35 can be closed with the lid 35 placed on top of the cooler container 39. The cooler bag 1 is sized to accommodate the cooler container 39 without rattle, so that even when the cooler bag 1 is lifted by grasping the handles 21, 21 with the hands, the cooler bag 1 does not deform and the cooler container 39 does not rattle.

[0026] The PET bottle P in the cooler container 39 is doubly insulated by the cooler bag 1, so it can remain frozen for a long time even in an extremely hot outdoor environment. In addition, since the top surface of the lid is relatively rigid, when the cooler container 39 is stored inside, the flattened lid 35 of the cooler bag 1 can be used as a stand or chair. The cooler container 39 can be easily removed from the cooler bag 1 by raising and grabbing the handles 45, 45.

[0027] The external pocket 15 and the hanging part 31 of this cooler bag 1 can be used to attach portable items. Furthermore, the cooler bag 1 is sized to fit the cooler container 39, but the object to be stored is not particularly limited as long as it fits within that size. For example, if it is sufficient to simply place the object in the cooler bag 1, then the object can be placed directly in the cooler bag 1 and kept cool. For example, you can put caught fish directly into the cooler bag 1, or when carrying the external pocket 15 and hanging part 31 to camp, you can put gloves in the external pocket 15, or hang cutlery with a carabiner on the hanging part 31 and put it in the external pocket 15. As shown in FIG. 3, the side portions 13 of the cooler bag 1 have a certain degree of rigidity so that the bag can stand on its own even when empty, and therefore the bag will not lose its shape even if fish or the like is placed directly inside the bag without the cooler container 39 inside.

[0028] On the other hand, the cooler bag 1 has a foldable side portion 13 of the storage body 3 made only of fabric material, so that when not in use it can be folded up to make it compact as shown in Figure 6. If you have this cooling bag 1 along with the cooling garment and the cooling container 39, you can wear the cooling garment and work comfortably regardless of the location or temperature conditions.

[0029] Although the embodiments of the present invention have been described in detail above, the specific configuration is not limited to these embodiments, and the invention also includes design changes within the scope of the present invention without departing from the gist of the present invention. For example, in the above embodiment, the shape and size of the cooler bag 1 are set so that it can easily accommodate the cooler container 39 for storing four PET bottles P and can be easily carried when stored inside, and if the shape and size of the cooler container 39 are different, the shape and size of the cooler bag 1 will also be different. [Explanation of symbols]

[0030] 1... Cooler bag 3... Storage body 5...Exterior material 7...Interior material 9...Multi-layer fabric 11...Bottom part 13...Side 15...External pocket 15a...Divider 17...Belt tape 19...Belt 21...Handle 23...Holding portion 25...Hook and loop fastener 25a...Hook part 25b...Loop part 27...Strip material 29...Strip material 29a...Linear stitching portion 31...Hooking portion 33... Belt tape 35... Lid 37...Line fastener 39...Cooler container 41...Storage body 43...Cover body 43a...Stepped part 45...Handle P...PET bottle

Claims

1. An insulated bag comprising a cylindrical storage body with a bottom made of fabric, a lid body for opening and closing the upper opening of the storage body, a wire fastener attached to the opening edge of the storage body and the outer edge of the lid body, a pair of handles facing the outer surface of the storage body, and a pocket and a hanging part attached to the outer surface of the storage body, wherein the storage body is sized to allow insertion and removal of a specific size of rigidity-specific insulated container and to store it without rattling.

2. The cooler bag according to claim 1, A pair of strips having opposite ends pressed against the outer surface of the storage body to form an inverted U shape, a strip straddling the opposite ends and pressed against the outer surface of the storage body in its entire circumferential direction to form a ring, and a strip intermittently pressed against the outer surface of the ring-shaped strips in its entire circumferential direction, with gaps formed between them, are integrated with the outer surface of the storage body by sewing, The cooler bag is characterized in that the handle is formed from the inverted U-shaped strip, and the hanging part is formed from the strip forming the gap.

3. The cooler bag according to claim 2, The cooler bag is characterized in that an external pocket is provided below the hanging part, opening upward.

4. The cooler bag according to claim 3, A cooler bag characterized in that a fabric material longer than the entire circumference of the storage body is formed into a ring around the outer surface of the storage body, the fabric material is sewn to the outer surface of the storage body in lines in the vertical direction at circumferential intervals to form partitions, and the lower edge side of the fabric material is folded in a pleated state against the partition and sewn to the outer surface of the storage body, and a plurality of external pockets are formed using the fabric material as an outer bag cloth.

5. The cooler bag according to claim 4, This cooler bag is characterized in that the fabric forming the exterior of the storage body is used as the outer bag cloth to form an external pocket.

6. The cooler bag according to any one of claims 1 to 5, The cooler container has a storage body capable of storing a plurality of PET bottles containing freezable liquids, a lid for opening and closing the opening of the storage body, and a lid fixing means for fixing the lid to the body with the opening closed, The outer edge of the top surface of the lid is a stepped portion that is one step lower than the inside, and the pair of opposing handles can move between a state in which they are stored in the stepped portion and a state in which they are raised and lowered upward, The cooler bag is characterized in that the lid of the cooler bag is held flat when the cooler container is housed in the cooler bag with the handle stored in the step portion.

Citation Information

Patent Citations

  • Cooling garment

    JP2023011483A

  • Plastic bottle insulated container

    JP2023026710A

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