Cold insulation bag

Abstract

To provide a cold insulation bag that comprises a vacuum heat insulation panel, and enhances shock resistance of the vacuum heat insulation panel.SOLUTION: A cold insulation bag 1 comprises a bag body 2, and a heat insulation unit 4. The bag body 2 comprises an outer bag 28 in which a first heat insulation material 28c is contained, and a waterproof bag 30 having waterproofness and forming a housing space inside the outer bag 28. The waterproof bag 30 forms the housing space inside the outer bag 28. The heat insulation unit 4 is detachably attached between the outer bag 28 and the waterproof bag 30. The heat insulation unit 4 comprises a vacuum heat insulation panel 41, a first protection member 42 covering a peripheral edge 41c of the vacuum heat insulation panel 41, a second protection member 43 covering an outside surface 41a of the vacuum heat insulation panel 41, a third protection member 44 covering an inside surface 41b of the vacuum heat insulation panel 41, and a housing bag 46 housing the first to third protection members 42-44.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a cooler bag. [Background technology]

[0002] 2. Description of the Related Art Conventionally, a cooler bag equipped with a vacuum insulation panel is known (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2021-508265 Summary of the Invention [Problem to be solved by the invention]

[0004] In a cooler bag equipped with a vacuum insulation panel, in order to maintain the insulating performance of the vacuum insulation panel, it is preferable to protect the vacuum insulation panel from impact and prevent damage to the vacuum insulation panel.

[0005] An object of the present invention is to improve the impact resistance of a vacuum insulation panel in a cooler bag equipped with a vacuum insulation panel. [Means for solving the problem]

[0006] A cooler bag according to a first aspect of the present invention includes a bag body and a heat insulating unit. The bag body includes an outer bag containing a first heat insulating material, and a waterproof bag that is waterproof and forms a storage space inside the outer bag. The heat insulating unit is detachably attached between the outer bag and the waterproof bag. The heat insulating unit includes a vacuum insulation panel, a first protective member that covers the periphery of the vacuum insulation panel, a second protective member that covers the outer side of the vacuum insulation panel, a third protective member that covers the inner side of the vacuum insulation panel, and a storage bag that stores the first to third protective members.

[0007] In this cooler bag, the outer surface of the vacuum insulation panel is entirely covered by the first to third protective members, thereby improving the impact resistance of the vacuum insulation panel. Furthermore, the first insulating material improves the impact resistance of the insulation unit. Also, since the insulation unit is detachably attached between the outer bag and the waterproof bag, the insulation unit can be attached to the bag body, for example, after the bag body is manufactured. This improves the productivity of the cooler bag. Also, since the insulation unit can be removed from the bag body, it becomes possible to store the cooler bag with the bag body folded, and the cooler bag is easy to maintain.

[0008] The heat insulating unit of the cooler bag according to the second aspect of the present invention is detachably attached to the bag body via a hook-and-loop fastener, in which case the heat insulating unit can be easily attached and detached to the cooler bag.

[0009] The bag body of the cooler bag according to the first, second or third aspect of the present invention further has an inner bag disposed between the outer bag and the waterproof bag and containing a second insulating material, and the insulating unit is detachably attached between the outer bag and the inner bag. In this case, since the insulating unit is disposed between the first insulating material and the second insulating material, the impact resistance of the insulating unit can be further improved.

[0010] At least one of the second protection member and the third protection member of the cooler bag according to a fourth aspect according to any one of the first aspect to the third aspect of the present invention is a heat insulating member. In this case, the cooler bag can have an improved cooling effect.

[0011] The bag body of the cooler bag according to any one of the first to fourth aspects of the present invention has a bottom having a first bottom surface and a second bottom surface, and a seam portion joining the first bottom surface and the second bottom surface, the seam portion being located at the center of the bottom. In this case, the seam portion functions as a water drain for draining moisture from the inside of the bag body 2 to the outside of the bag body 2.

[0012] The insulation unit of the cooler bag according to any one of the first to fifth aspects of the present invention further includes a core member arranged to sandwich at least one of the second and third protective members together with the vacuum insulation panel, in which case the rigidity of the core member can prevent the vacuum insulation panel from being damaged by a bending force acting on the insulation unit.

[0013] The bag body of the cooler bag according to any one of the first to sixth aspects of the present invention has a bottom and two opposing side parts standing up from the bottom, and the heat insulating unit is disposed at the bottom and the two side parts of the bag body. In this case, the cooler bag can have an improved cooling effect. Effect of the Invention

[0014] According to the present invention, in a cooler bag equipped with a vacuum insulation panel, the impact resistance of the vacuum insulation panel can be improved. [Brief description of the drawings]

[0015] [Figure 1] Front view of the cooler bag. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. 4 is a schematic cross-sectional view of a bag body and an insulating unit. [Figure 6] 13 is a diagram for explaining how to attach and detach the outer and inner linings of a waterproof bag. [Figure 7] FIG. 2 is a front view of the vacuum insulation panel and the first protective member. [Figure 8] FIG. 4 is a diagram for explaining a heat insulating unit. [Figure 9] FIG. [Figure 10] Rear view of the insulation unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] As shown in FIGS. 1 to 5, a cooler bag 1 according to an embodiment of the present invention includes a bag body 2 and a heat insulating unit 4. The cooler bag 1 includes a bag body 2 and a heat insulating unit 4. The bag body 2 and the heat insulating unit 4 are made of a plastic.

[0017] The bag body 2 has flexibility. The bag body 2 has an upper portion 21, a bottom portion 22, a front portion 23, a rear portion 24, a left portion 25, and a right portion 26. The upper portion 21 has an opening for putting in and taking out an item. The opening can be opened and closed by a slide fastener 21a. The slide fastener 21a extends in the left-right direction. The slide fastener 21a is treated to be waterproof. As shown in FIG. 1, the dimension of the upper portion 21 in the left-right direction is larger than the dimension of the bottom portion 22 in the left-right direction.

[0018] The bottom 22 is formed in a substantially rectangular shape. The bottom 22 is located below the upper portion 21. The bottom 22 has a first bottom surface 22a, a second bottom surface 22b, and a joint portion 22c. The first bottom surface 22a is aligned with the second bottom surface 22b in the front-rear direction. The second bottom surface 22b is located in front of the first bottom surface 22a. The joint portion 22c joins the first bottom surface 22a and the second bottom surface 22b by sewing. The joint portion 22c is located in the center of the bottom 22 and extends in the left-right direction. The joint portion 22c functions as a drain for draining moisture from the inside of the bag body 2 to the outside of the bag body 2.

[0019] The front side portion 23 rises from the front end of the bottom portion 22 and extends to the upper portion 21. The front side portion 23 is connected to the left side portion 25 and the right side portion 26. The rear side portion 24 rises from the rear end of the bottom portion 22 and extends to the upper portion 21. The rear side portion 24 faces the front side portion 23 in the front-to-rear direction. The rear side portion 24 is connected to the left side portion 25 and the right side portion 26. The left side portion 25 rises from the left end of the bottom portion 22 and extends to the upper portion 21. The right side portion 26 rises from the right end of the bottom portion 22 and extends to the upper portion 21. The right side portion 26 faces the left side portion 25 in the left-right direction.

[0020] Here, as shown in FIGS. 1 to 4, the cooler bag 1 includes belts 5 and 6, fastened members 7 and 8, a handle 9, and a plurality of D-rings 10. As shown in FIG.

[0021] Belt 5 is disposed on the outer surface of left side portion 25. One end of belt 5 is fixed to left side portion 25, and the other end of belt 5 is a free end. Belt 5 includes a locking member 5a. Locking member 5a is disposed at the free end of belt 5. Locking member 5a is, for example, a buckle (here, a male buckle). The position of locking member 5a can be adjusted with respect to belt 5. Belt 6 is disposed on the outer surface of right side portion 26. Belt 6 is disposed in a position symmetrical to belt 5. Belt 6 includes a locking member 6a. Belt 6 has the same configuration as belt 5.

[0022] The locked member 7 is disposed at the left end of the upper portion 21. The locked member 7 is engageable with the locking member 5a. The locked member 7 is, for example, a buckle (here, a female buckle). As shown in FIG. 4, when the locked member 7 is locked to the locking member 5a, the left end of the upper portion 21 is held in a state where it is bent downward. The locked member 8 is disposed at the right end of the upper portion 21. The locked member 8 is engageable with the locking member 6a. When the locked member 8 is locked to the locking member 6a, the right end of the upper portion 21 is held in a state where it is bent downward.

[0023] The handles 9 are disposed on the front side portion 23 and the rear side portion 24, respectively, and can be connected to each other by, for example, a hook-and-loop fastener. A plurality of D-rings 10 are disposed near both ends of the handles 9. The plurality of D-rings 10 can be connected to a shoulder belt (not shown).

[0024] As shown in FIG. 5, the bag body 2 has an outer bag 28, an inner bag 29, and a waterproof bag 30. The outer bag 28 is formed in a bag shape and opens upward. The outer bag 28 has an outer material 28a, a lining material 28b, and a first insulating material 28c. The outer material 28a and the lining material 28b are flexible. The outer material 28a constitutes the outer surface of the bag body 2. The outer material 28a is made of, for example, nylon. The outer material 28a may be made of polyester. The lining material 21b is disposed inside the outer material 28a. The lining material 28b is sewn to the outer material 28a. The lining material 28b is made of, for example, polyester. The lining material 28b may be made of nylon.

[0025] The first insulating material 28c is contained in the outer bag 28. The first insulating material 28c is disposed between the outer layer 28a and the inner layer 28b. The first insulating material 28c is, for example, a sheet material, and is a polyethylene resin foam material. The first insulating material 28c may be a resin foam material such as polyurethane. The first insulating material 28c is laminated on the outer layer 28a.

[0026] As shown in Fig. 5, the inner bag 29 is formed in a bag shape and opens upward. The inner bag 29 forms a storage space inside the outer bag 28. The inner bag 29 is disposed between the outer bag 28 and the waterproof bag 30. The inner bag 29 is detachably attached to the outer bag 28 via a hook-and-loop fastener 34. The hook-and-loop fastener 34 is provided on the surface of the lining 28b of the outer bag 28 and on the outer side surface of the inner bag 29.

[0027] The inner bag 29 has an outer material 29a, a lining 29b, and a second insulating material 29c. The outer material 29a and the lining 29b are flexible. The outer material 29a and the lining 29b are made of, for example, polyester. The outer material 29a and the lining 29b may be made of nylon. The lining 29b is disposed inside the outer material 29a. The lining 29b is sewn to the outer material 29a.

[0028] The second insulating material 29c is contained in the inner bag 29. The second insulating material 29c is disposed between the outer material 29a and the inner material 29b. The second insulating material 29c is, for example, a sheet material, and is a polyethylene resin foam material. The second insulating material 29c may be a resin foam material such as polyurethane.

[0029] As shown in Fig. 5 and Fig. 6, the waterproof bag 30 is formed in a bag shape and opens upward. The waterproof bag 30 forms a storage space inside the inner bag 29. The waterproof bag 30 is detachably attached to the outer bag 28. In detail, the waterproof bag 30 is detachably attached to the lining 28b of the outer bag 28 via a hook-and-loop fastener arranged near the back side of the slide fastener 21a. The waterproof bag 30 is waterproof. The waterproof bag 30 is made of a material such as TPU (thermoplastic polyurethane elastomer) or PVC (polyvinyl chloride).

[0030] The waterproof bag 30 has an outer material 31 and a lining material 32. The outer material 31 is attached to the lining material 32 via hook-and-loop fasteners 35 and 36. The hook-and-loop fastener 35 is provided on the inner peripheral edge of the opening 31a of the outer material 31 and on the outer peripheral edge of the opening 32a of the lining material 32. The outer peripheral edge of the opening 32a of the lining material 32 is attached to the inner peripheral edge of the opening 31a of the outer material 31 via the hook-and-loop fastener 35. The hook-and-loop fastener 36 is provided on a part of the outer peripheral edge of the opening 31a of the outer material 31 and on the flap portion 32b of the lining material 32. The flap portion 32b is disposed so as to cover a part of the outer peripheral edge of the opening 31a of the outer material 31. The flap portion 32b is attached to the outer peripheral edge of the opening 31a of the outer material 31 via the hook-and-loop fastener 36. The waterproof bag 30 may be made of a single piece of fabric.

[0031] The insulation unit 4 is detachably attached between the outer bag 28 and the waterproof bag 30. In this embodiment, the insulation unit 4 is detachably attached between the outer bag 28 and the inner bag 29. The insulation unit 4 is detachably attached to the outer bag 28 via a hook-and-loop fastener 37. The insulation unit 4 is detachably attached to the inner bag 29 via a hook-and-loop fastener 38. The insulation unit 4 is disposed at the bottom portion 22, the front portion 23, and the rear portion 24.

[0032] As shown in FIGS. 5 and 8, the insulation unit 4 has a vacuum insulation panel 41, a first protective member 42, a second protective member 43, a third protective member 44, a core member 45, and a storage bag 46.

[0033] The vacuum insulation panel 41 is formed in a substantially rectangular shape. The vacuum insulation panel 41 has an outer side 41a, an inner side 41b, and a peripheral edge 41c. The outer side 41a faces the outer bag 28. The inner side 41b is the side opposite to the outer side 41a and faces the inner bag 29. The peripheral edge 41c is a surface that connects the outer side 41a and the inner side 41b, and is located between the outer side 41a and the inner side 41b. In this embodiment, the peripheral edge 41c includes four side surfaces that extend from the outer edge of the outer side 41a to the outer edge of the inner side 41b. The thickness direction of the vacuum insulation panel 41 is perpendicular to the outer side 41a and the inner side 41b.

[0034] The first protective member 42 covers the periphery 41c of the vacuum insulation panel 41. The first protective member 42 covers the entire periphery 41c of the vacuum insulation panel 41. The first protective member 42 is, for example, a polyethylene resin foam material. As shown in FIG. 7, the first protective member 42 has a hole 42a for fitting the vacuum insulation panel 41. The hole 42a is rectangular and has a size approximately equal to that of the outer surface 41a. The hole 42a penetrates the first protective member 42 in the thickness direction of the vacuum insulation panel 41. By fitting the vacuum insulation panel 41 into the hole 42a of the first protective member 42, the periphery 41c of the vacuum insulation panel 41 is covered by the first protective member 42. The first protective member 42 is disposed between the second protective member 43 and the third protective member 44. In FIG. 8, the first protective member 42 is omitted from the illustration in order to make the drawing easier to see.

[0035] The second protective member 43 covers the outer surface 41a of the vacuum insulation panel 41. The second protective member 43 covers the entire outer surface 41a of the vacuum insulation panel 41. The second protective member 43 is an insulating member and is formed of, for example, a polyethylene resin foam material. The second protective member 43 faces the first protective member 42 in the thickness direction of the vacuum insulation panel 41. The thickness of the second protective member 43 is approximately the same as the thickness of the vacuum insulation panel 41.

[0036] The third protective member 44 covers the inner side surface 41b of the vacuum insulation panel 41. The third protective member 44 covers the entire inner side surface 41b of the vacuum insulation panel 41. The third protective member 44 is a heat insulating member, for example, a polyethylene resin foam material. The third protective member 44 faces the first protective member 42 in the thickness direction of the vacuum insulation panel 41. The thickness of the third protective member 44 is approximately the same as the thickness of the vacuum insulation panel 41. The first to third protective members 42 to 44 may be made of a resin foam material such as polyurethane.

[0037] The core member 45 is disposed so as to sandwich at least one of the second protective member 43 and the third protective member 44 together with the vacuum insulation panel 41. In this embodiment, the core member 45 is disposed so as to sandwich both the second protective member 43 and the third protective member 44 together with the vacuum insulation panel 41. The core member 45 is a plate-shaped member. The thickness of the core member 45 is thinner than the thickness of the second protective member 43.

[0038] The core member 45 has a first core member 45a and a second core member 45b. The first core member 45a is disposed outside the second protective member 43. The first core member 45a covers the outer side of the second protective member 43. The second core member 45b is disposed outside the third protective member 44. The second core member 45b covers the outer side of the third protective member 44. The vacuum insulation panel 41, the first protective member 42, the second protective member 43, and the third protective member 44 are sandwiched between the first core member 45a and the second core member 45b in the thickness direction of the vacuum insulation panel 41.

[0039] The storage bag 46 stores the first to third protective members 42 to 44. The storage bag 46 has a bag body 46a and a lid portion 46b. The bag body 46a is formed in a bag shape. The bag body 46a has an opening 46c. The opening 46c is an opening for placing the vacuum insulation panel 41, the first protective member 42, the second protective member 43, the third protective member 44, and the core member 45 into the storage bag 46.

[0040] The inner dimensions of the storage bag 46 are set so that the vacuum insulation panel 41, the first protective member 42, the second protective member 43, the third protective member 44, and the core member 45 fit snugly inside the storage bag 46. The vacuum insulation panel 41, the first protective member 42, the second protective member 43, the third protective member 44, and the core member 45 are in close contact with each other when stored in the storage bag 46.

[0041] The lid portion 46b opens and closes the opening 46c. One end of the lid portion 46b is fixed to a first surface 46d of the bag body 46a, and the other end of the lid portion 46b is a free end. When the opening 46c is closed, the free end of the lid portion 46b is fixed to a second surface 46e of the bag body 46a by a hook-and-loop fastener 50. The first surface 46d and the second surface 46e of the bag body 46a are formed in a rectangular shape and extend in a direction perpendicular to the thickness direction of the vacuum insulation panel 41.

[0042] The hook-and-loop fastener 37 is provided on the lining 28b of the outer bag 28 and on a first surface 46d of the storage bag 46. The hook-and-loop fastener 38 is provided on the outer surface 29a of the inner bag 29 and on a second surface 46e of the storage bag 46.

[0043] In the cooler bag 1 having the above configuration, the outer surface of the vacuum insulation panel 41 is entirely covered by the first to third protective members 42 to 44, so that the impact resistance of the vacuum insulation panel 41 can be improved. Furthermore, since the insulation unit 4 is disposed between the first insulation material 28c and the second insulation material 29c, the impact resistance of the insulation unit 4 can be improved by the first insulation material 28c and the second insulation material 29c. Furthermore, since the insulation unit 4 is detachably attached between the outer bag 28 and the inner bag 29, for example, the insulation unit 4 can be attached to the bag body 2 after the bag body 2 is manufactured. This improves the productivity of the cooler bag 1. Furthermore, since the insulation unit 4 can be removed from the bag body 2, it becomes possible to store the cooler bag 1 with the bag body 2 folded, and the maintenance of the cooler bag 1 is easy. Furthermore, since the first insulation material 28c is included in the outer bag 28, the outer bag 28 can be used as a simple cooler bag by itself. In addition, when cold insulation is not required, such as in winter, the insulation unit 4 can be removed and the cooler bag 1 can be used, thereby expanding the storage space of the cooler bag 1 and making the cooler bag 1 lighter than when the insulation unit 4 is attached to the bag body 2.

[0044] <Other embodiments> Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the gist of the invention.

[0045] The first to third protective members 42 to 44 may be made of a resin foam material such as polyethylene foam or urethane foam.

[0046] In the above embodiment, the first protective member 42 was integral with the second protective member 43 and the third protective member 44, but the first protective member 42 may be integral with one of the second protective member 43 and the third protective member 44.

[0047] The second protective member 43 and the third protective member 44 do not have to be thermal insulating members. The core member 45 may be omitted. The thermal insulating unit 4 may be disposed, for example, only on the bottom portion 22, or may be disposed on the left side portion 25 and the right side portion 26. The core member 45 may be disposed only on the outside of the second protective member 43 of the thermal insulating unit 4 disposed on the bottom portion 22.

[0048] The inner bag 29 may be omitted. In this case, the heat insulating unit 4 may be attached only to the outer bag 28, or may be detachably attached to the outer bag 28 and the waterproof bag 30 by providing a hook-and-loop fastener on the outer surface of the outer fabric 31 of the waterproof bag 30. [Explanation of symbols]

[0049] 1 Cooler Bag 2 bags 4. Insulation unit 22 Bottom 22c Joint 28 Outer bag 28c First insulation material 29 Inner bag 29c Second insulation material 41 Vacuum insulation panel 42-44 First to third protective members

Claims

1. A bag body including an outer bag containing a first insulating material and a waterproof bag having waterproof properties and forming a storage space inside the outer bag; an insulation unit including a vacuum insulation panel, a first protective member covering a periphery of the vacuum insulation panel, a second protective member covering an outer surface of the vacuum insulation panel, a third protective member covering an inner surface of the vacuum insulation panel, and a storage bag for storing the first to third protective members, the insulation unit being detachably attached between the outer bag and the waterproof bag; Equipped with Cooling bag.

2. The insulation unit is removably attached to the bag body via a hook-and-loop fastener. The cooler bag according to claim 1.

3. The bag body further includes an inner bag disposed between the outer bag and the waterproof bag and containing a second insulating material, The insulation unit is detachably attached between the outer bag and the inner bag. The cooler bag according to claim 1 or 2.

4. At least one of the second protective member and the third protective member is a heat insulating member. The cooler bag according to claim 1 or 2.

5. The bag body has a bottom portion having a first bottom surface and a second bottom surface, and a joint portion that joins the first bottom surface and the second bottom surface, The joint is located at the center of the bottom. The cooler bag according to claim 1 or 2.

6. The insulation unit further includes a core member arranged to sandwich at least one of the second protective member and the third protective member together with the vacuum insulation panel. The cooler bag according to claim 1 or 2.

7. The bag has a bottom and two opposing sides extending from the bottom, The insulation units are disposed on the bottom and the two sides. The cooler bag according to claim 1 or 2.

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