Cooler bag

Abstract

To provide a cooling bag capable of keeping liquid in a bottle frozen for a long period of time. The inner surface of the outer bag 3 comes into contact with the outer surface of the inner bag 47, and adjacent outer surfaces of the inner bags 47 also come into contact with each other. Heat insulating material 65 is built into the bottom surface 51a, front, rear, left, and right sides 51b, 51c, and lid of the inner bag body, and heat insulating material 31 is built into the bottom surface 7a, front, rear, left, and right sides 7b, 7c, opening / closing body 21, and protrusions of the outer bag body 7, so the double insulating effect of the outer bag 3 and inner bag 47 is reliably achieved.

Description

[Technical Field]

[0001] This invention relates to a cooler bag used to carry frozen liquid in a bottle. [Background technology]

[0002] The cooling garment described in Patent Document 1 has a tube running exposed on its inner surface. A storage compartment is attached to the outer surface of the back, which contains a bottle with its contents frozen. When the pump is activated, water in the tube flows into the storage compartment from the top as droplets, cools as it hits the outer surface of the bottle, and then returns to the tube through the outlet at the bottom. The ice in the bottle melts, but the ice on the top remains until the end. The cooling effect can be maintained for a relatively long time by the water coming into contact with the bottle. In order to maintain the cooling effect of the conventional cooling garments, it is necessary to replace the bottle with a new bottle containing frozen liquid before the ice in the bottle melts. Therefore, the bottles are stored in a cooler container for bottles as shown in Patent Document 2 and are carried around. This bottle cooler container has a vacuum insulation layer between the outer container and the inner container, providing excellent coolness retention. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7273426 [Patent Document 2] Japanese Patent Application Publication No. 2023-26710 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in workplaces where temperatures reach around 40°C, conventional bottle cooler containers alone may not be able to keep the liquid in the bottle frozen for long periods of time. The present invention was made in response to the above-mentioned conventional problems, and its object is to provide a cooler bag that can keep the liquid in the bottle frozen for a long period of time and is easy to carry. [Means for solving the problem]

[0005] The present invention relates to an insulated bag comprising an outer bag and an inner bag housed in the outer bag, wherein the outer bag has a box-shaped outer bag body with an opening at the top, a lid for opening and closing the opening, a fastening means for fastening the lid when the opening is closed by the lid, and a handle provided on the outer bag body; the inner bag has a box-shaped inner bag body with an opening at the top, a lid for opening and closing the opening, a fastening means for fastening the lid when the opening is closed by the lid, and a handle provided on the inner bag body; the outer bag has thermal insulation between its outer and inner surfaces, and the inner bag has thermal insulation between its outer and inner surfaces.

[0006] Preferably, the outer bag body has a protruding portion that protrudes from the opening, and the lid body has a flat portion that covers the opening and a raised portion that protrudes downward along the edge of the flat portion, and when the opening is closed with the lid body, the raised portion overlaps the protruding portion from the outside.

[0007] Preferably, the outer bag can accommodate a plurality of inner bags, and the outer surfaces of the accommodated inner bags contact the inner surfaces of the outer bags.

[0008] Preferably, adjacent outer surfaces of the inner bags are in contact with each other.

[0009] Preferably, a plate-shaped protrusion containing a heat insulating material is provided on the underside of the lid of the outer bag, and when the lid is closed, the underside of the plate-shaped protrusion comes into contact with the upper surface of the inner bag contained in the outer bag.

[0010] Preferably, an opening is formed in the lid of the outer bag, and the lid is provided with an opening / closing body that opens and closes the opening, and has a fixing means that fixes the opening / closing body to the lid when the opening is closed by the opening / closing body, and a plate-shaped protrusion is provided on the underside of the opening / closing body, and when the opening / closing body is closed, the plate-shaped protrusion protrudes from the opening to the underside of the lid.

[0011] Preferably, the outer surface of the outer bag body is provided with a tool holding portion consisting of an annular insertion portion for inserting tools from above and holding them, and a pocket provided below the insertion portion. [Effects of the Invention]

[0012] The cooler bag of the present invention makes it possible to keep the liquid in the bottle frozen for a long period of time. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a front view of an outer bag of a cooler bag according to an embodiment of the present invention; [Figure 2] FIG. 2 is a rear view of the outer bag of the cooler bag of FIG. [Figure 3] FIG. 2 is a side view of the outer bag of the cooler bag of FIG. [Figure 4] 2 is a view showing a state in which the opening and closing body of the outer bag of the cooler bag of FIG. 1 is opened. FIG. [Figure 5] 2 is a diagram showing the cooler bag of FIG. 1 in a state where an inner bag is placed in an outer bag and the lid of the outer bag is open. [Figure 6] FIG. 6 is a front view of the inner bag of the cooler bag of FIG. 5. [Figure 7] 7 is a diagram showing a state in which a bottle cooler container is placed in the inner bag of the cooler bag of FIG. 6 and the lid is open. FIG. [Figure 8] FIG. 8 is a diagram of the inner bag and bottle cooler container of the cooler bag of FIG. 7. [Figure 9] 9 is a diagram showing a state in which a bottle is housed in the main body of the bottle cooler container of FIG. 8. FIG. [Figure 10]2 is a cross-sectional view of the cooler bag of FIG. 1, showing a state in which a bottle cooler container with a bottle placed therein is housed in the cooler bag. FIG. [Figure 11] 2 is a cross-sectional view of the cooler bag of FIG. 1 cut at the center as viewed from the front side, with a bottle cooler container placed inside the cooler bag. FIG. 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. Reference numeral 3 denotes an outer bag, which has a box-shaped outer bag body 7 having a rectangular opening 5 on the top surface.

[0015] The outer surface of the outer bag body 7 is made of a synthetic resin cloth 27, and the inner surface is made of a water-repellent synthetic resin sheet 29. The outer bag body 7 is formed in a box shape by sewing together a cloth 27 and a sheet 29 with a plate-shaped heat insulating material 31 made of synthetic resin interposed therebetween. Therefore, the outer bag body 7 has a bottom surface 7a and front, rear, left and right side surfaces 7b, 7c, 7d and 7e with heat insulating material 31 built in.

[0016] Furthermore, sheet 29 is folded back above opening 5, and the tip of the folded back portion is sewn to the inner surface of the edge of opening 5. Therefore, sheet 29 forms protruding portion 29a that protrudes from opening 5. Heat insulating material 31 is built into protruding portion 29a.

[0017] Handles 33 are attached to the front and rear sides 7b, 7c of the outer bag body 7, and ends of shoulder straps 35 are connected to the left and right sides 7d, 7e. Additionally, an inner belt-like body 37 is sewn to the front and rear side surfaces 7b, 7c of the outer bag main body 7. Furthermore, the upper and lower ends of the inner belt-like body 37 are sewn to the left and right side surfaces 7d, 7e, except for the center portion, and both the left and right sides of this unsewn center portion of the inner belt-like body 37 are sewn vertically, and the portion sandwiched between these vertically sewn portions forms a handle 39.

[0018] The outer belt 41 is sewn to the inner belt 37 at multiple locations with intervals between them in the vertical direction, and an annular insertion portion 43 that penetrates vertically is formed by the inner belt 37 and the outer belt 41. Multiple insertion portions 43 are provided, and pockets 45 that open upward are provided below the insertion portions 43 on the front, rear, left, and right sides 7b, 7c, 7d, and 7e of the outer bag body 7.

[0019] Reference numeral 9 denotes a lid, which has a flat plate portion 11 and a rising portion 13. The flat plate portion 11 is set to a shape and size that covers the opening 5. The outer surface of the flat plate portion 11 of the lid body 9 is made of a synthetic resin cloth 27, and the inner surface is made of a synthetic resin sheet 29 having water repellency. The flat plate portion 11 is formed into a plate shape by sewing together a cloth 27 and a sheet 29 via a plate-shaped heat insulating material 31 made of synthetic resin. Furthermore, a rising portion 13 is provided along the edge of the flat plate portion 11 and protrudes downward.

[0020] The rear long side of rising portion 13 is attached to the edge of the rear long side of opening 5 via a strip-shaped connector 15. Connector 15 is set to a dimension slightly shorter than the rear long side of opening 5, so the rear long side of rising portion 13 is connected to connector 15 except for both ends. The edges of the opening 5 and the rising portion 13, excluding the portion attached to the connector 15, are provided with fasteners 17 as fixing means.

[0021] The flat plate portion 11 is formed with a pair of substantially square openings 19, 19. Furthermore, a pair of opening / closing bodies 21, 21 have rear end portions attached to the long rear side of the flat plate portion 11. The opening / closing body 21 is substantially square and slightly larger than the opening 19, and is capable of opening and closing the opening 19. The outer surface of the opening / closing body 21 is made of a synthetic resin cloth 27, and the inner surface is made of a water-repellent synthetic resin sheet 29. The opening / closing body 21 is formed in a plate shape by sewing together a cloth 27 and a sheet 29 via a plate-shaped heat insulating material 31 made of synthetic resin. A handle 22 is attached to the front end of the opening / closing body 21. The handle 22 is configured by sewing both ends of a narrow belt to the front end of the opening / closing body 21 in a loose state. A plate-shaped protrusion 23 is provided on the underside of the opening / closing body 21, and the outer surface of this protrusion 23 is made of a water-repellent synthetic resin sheet 29, and a plate-shaped insulating material 31 made of synthetic resin is built in. This plate-like protrusion 23 is formed in a square shape that is slightly smaller than the opening / closing body 21. When the opening 19 is closed by the opening / closing body 21, the plate-like protrusion 23 fits into the opening 19 and protrudes from the underside of the lid body 9.

[0022] The upper surface of the flat plate portion 11 is provided with a female side portion 25a of a hook-and-loop fastener 25 as a fastening means, and this female side portion 25a is arranged along the outer periphery of the pair of openings 19, 19 except for the rear side. Additionally, male side portions 25b of hook-and-loop fasteners 25 are provided on the undersides of the pair of opening / closing bodies 21, 21, and these male side portions 25b are arranged on the front side and on both the left and right ends in correspondence with the female side portions 25a.

[0023] Reference numeral 47 denotes an inner bag, and this inner bag 47 has a box-shaped inner bag body 51 having a substantially square opening 49 on the top surface. Reference numeral 53 denotes a lid, the outer surface of which is made of synthetic resin cloth 61, and the inner surface of which is made of synthetic resin sheet 63 having water repellency. The cover 53 is formed in a plate shape by sewing together a cloth 61 and a sheet 63 via a synthetic resin plate-shaped heat insulating material 65. The cover 53 is set in a shape and size that covers the opening 49. One side of the lid 53 is attached to the edge of one side of the opening 49 via a strip-shaped connector 55. The connector 55 is set to a dimension slightly shorter than the side of the opening 49, so that one side of the lid 53 is connected to the connector 55, leaving both ends unconnected. Fasteners 57 are provided as fixing means on the edge of the opening 49 and the edge of the lid 53, excluding the attachment portion of the connector 55.

[0024] The outer surface of the inner bag body 51 of the inner bag 47 is made of a synthetic resin cloth 61, and the inner surface is made of a water-repellent synthetic resin sheet 63. The inner bag body 51 is formed in a box shape by sewing together a cloth 61 and a sheet 63 with a plate-shaped heat insulating material 65 made of synthetic resin interposed therebetween. Therefore, the inner bag body 51 has a bottom surface 51 a , front and rear side surfaces 51 b , 51 c , 51 d , and 51 e , and a cover 53 filled with heat insulating material 65 .

[0025] Pockets 67 that open upward are provided on the front, rear, left and right side surfaces 51b, 51c, 51d, and 51e of the inner bag body 51. In addition, a handle 59 is attached to the top surface of the lid 53.

[0026] Reference numeral 71 denotes a cooler container for bottles having a structure similar to that of the cooler container for PET bottles shown in Patent Document 2. The main body 73 of the bottle cooler container 71 has a vacuum insulation layer between the outer container and the inner container, and can be opened and closed with a lid 75. The lid 75 is provided with a handle 77. This bottle cooler container 71 can accommodate two bottles B. The bottle B consists of a body Ba and a cap Bb.

[0027] Next, how to use the cooler bag 1 will be described. Bottles B are filled with water as a freezable liquid, and are then placed in a freezer to freeze the water, after which the two bottles B are placed in a bottle cooling container 71. Then, the bottle cooler container 71 is placed in the inner bag body 51, the lid body 53 is closed to close the opening 49, and the fastener 57 is closed. The two inner bags 47 each containing a bottle cooler container 71 are then placed in the outer bag body 7, the lid 9 is closed to close the opening 5, and the fastener 17 is then closed. The rising portion 13 of the lid body 9 overlaps the protruding portion 29a from the outside. The opening 19 of the lid 9 is closed by the opening / closing body 21, and the female side portion 25a and the male side portion 25b of the hook-and-loop fastener 25 are kept connected.

[0028] As shown in FIGS. 10 and 11, the inner surface of the outer bag 3 and the outer surface of the inner bag 47 come into contact with each other, and further, the outer surfaces of adjacent inner bags 47 also come into contact with each other. As described above, the bottom surface 51a, front, rear, left and right side surfaces 51b, 51c, 51d, 51e, and lid body 53 of the inner bag body 51 are provided with built-in heat insulating material 65, and the bottom surface 7a, front, rear, left and right side surfaces 7b, 7c, 7d, 7e, the opening / closing body 21, and the protrusion 23 of the outer bag body 7 are provided with built-in heat insulating material 31. That is, the outer bag 3 has a heat insulating material 31 between its outer surface and its inner surface, and the inner bag 47 also has a heat insulating material 65 between its outer surface and its inner surface, so that the double insulating effect of the outer bag 3 and the inner bag 47 is reliably exerted.

[0029] Furthermore, as mentioned above, the bottle cooler container 71 has a vacuum insulation layer between the outer container and the inner container, so the effect of this vacuum insulation layer is synergistically enhanced by the insulating effect of the outer bag 3 and the inner bag 47. Therefore, the water in Bottle B can remain frozen for a long period of time.

[0030] Furthermore, by opening the opening / closing body 21 of the opening 19 of the lid body 9 of the outer bag 3 and then opening the lid body 53 of the inner bag 47, the top surface of the bottle cooler container 71 can be exposed from the opening 19, so that the lid body 75 of the bottle cooler container 71 can be opened and the bottle B can be removed. Therefore, when the bottle B is taken out, the inside of the outer bag 3 can be kept to a minimum in terms of exposure to the outside air, and the temperature inside the outer bag 3 can be prevented from rising.

[0031] The cooler bag 1 can be easily carried by gripping the handle 33 or by hanging the shoulder strap 35 on the shoulder. Therefore, the cooler bag 1 can be easily carried to the work site. It is possible to hold a tool by inserting the tool into the insertion portion 43 and placing the bottom end of the tool in the pocket 45. Therefore, tools can be carried in addition to the bottle B in the cooler bag 1.

[0032] The above describes in detail the embodiment of the present invention, but the specific configuration is not limited to this embodiment, and design changes that do not deviate from the gist of the present invention are also included in the invention. For example, the lid 9 of the outer bag 3 may not be provided with the opening 19 or the opening / closing body 21. It is also possible to configure the outer bag 3 without the insertion portion 43 and the pocket 45. [Industrial Applicability]

[0033] The cooling bag of this invention can be used in the manufacturing and sales of cooling bags, and when used in combination with cooling clothing, it can greatly reduce the burden on people working in high-temperature environments. [Explanation of symbols]

[0034] 1... Cooler bag 3... Outer bag 5...Opening 7...Outer bag body 7a...Bottom of outer bag 7b, 7c...Front and rear sides of the outer bag 7d, 7e...Left and right sides of the outer bag 9...Lid body 11...Flat plate part 13...Rising portion 15...Connecting body 17...Zipper 19...Opening 21...Opening and closing body 22...Handle 23... Plate-shaped protrusion 25... Hook and loop fastener 25a...female side of hook and loop fastener 25b...male side of hook and loop fastener 27...Cloth 29...Sheet 29a...protrusion 31...insulating material 33...Handle 35...Shoulder strap 37...Inner band 39...Handle 41...Outer band 43...Insertion portion 45...Pocket 47...Inner bag 49...Opening 51...Inner bag body 51a...Bottom of inner bag body 51b, 51c...Front and rear sides of the inner bag body 51d, 51e...Left and right sides of the inner bag 53...Cover body 55...Connector body 57...Fastener 59...Handle 61...Cloth 63...Sheet 65...Insulation 67...Pocket 71... Bottle cooler container 73... Bottle cooler container body 75... Lid of bottle cooler container 77... Handle B...Bottle Ba...Bottle body Bb…Bottle cap

Claims

1. An outer bag and an inner bag accommodated in the outer bag, The outer bag has a box-shaped outer bag body with an opening at the top, a lid body for opening and closing the opening, a fixing means for fixing the lid body in a state where the opening is closed by the lid body, and a handle provided on the outer bag body, The inner bag has a box-shaped inner bag body with an opening at the top, a lid body for opening and closing the opening, a fixing means for fixing the lid body in a state where the opening is closed by the lid body, and a handle provided on the inner bag body, The outer bag has a heat insulating material between its outer surface and its inner surface, The cooler bag is characterized in that the inner bag has a heat insulating material between its outer surface and inner surface.

2. The cooler bag according to claim 1, The outer bag body has a protruding portion that protrudes from the opening, the lid body has a flat portion that covers the opening and a raised portion that protrudes downward along the edge of the flat portion, and when the opening is closed with the lid body, the raised portion overlaps the protruding portion from the outside.

3. The cooler bag according to claim 1, This cooler bag is characterized in that the outer bag can accommodate a plurality of inner bags, and the outer surfaces of the accommodated inner bags contact the inner surfaces of the outer bags.

4. The cooler bag according to claim 3, This cooler bag is characterized in that adjacent outer surfaces of the inner bags are in contact with each other.

5. The cooler bag according to claim 1, A cooler bag characterized in that a plate-shaped protrusion containing a heat insulating material is provided on the underside of the lid of the outer bag, and when the lid is closed, the underside of the plate-shaped protrusion comes into contact with the upper surface of the inner bag contained in the outer bag.

6. The cooler bag according to claim 5, An opening is formed in the lid of the outer bag, and the lid is provided with an opening / closing body that opens and closes the opening, and the opening / closing body has a fixing means that fixes the opening / closing body to the lid when the opening is closed by the opening / closing body, and a plate-shaped protrusion is provided on the underside of the opening / closing body, and the plate-shaped protrusion protrudes from the opening to the underside of the lid when the opening / closing body is closed.

7. The cooler bag according to claim 1, This cooler bag is characterized in that the outer surface of the outer bag body is provided with a ring-shaped insertion portion for inserting and holding tools from above, and a tool holding portion consisting of a pocket provided below the insertion portion.

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