Cooler box

Abstract

To improve an issue of a conventional cooler box resulted from a protection structure for a heat insulation property, in particular in an empty load state.SOLUTION: A cooler box 10 includes a storage bag 20 and a plurality of heat insulation panels. The storage bag 20 can be developed into a box shape. The plurality of heat insulation panels is arranged in a detachable / attachable manner on an inner surface of the storage bag 20. Each of the insulation panels is formed in a flat plate shape, and includes a flat plate-like heat insulation material 52 and a protection panel 53. The plurality of heat insulation panels includes a front surface panel 31, a rear surface panel 32, a bottom surface panel 35, a right surface panel 33, and a left surface panel 34 respectively arranged on an inner front surface 21, an inner rear surface 22, an inner bottom surface 25, an inner right surface 23, and an inner left surface 24 of the storage bag 20. Further, the front surface panel 31, the rear surface panel 32, the bottom surface panel 35, the right surface panel 33, and the left surface panel 34 are connected by connection fabrics 42-45.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] Disclosed herein is a cooler box. [Background technology]

[0002] The cooler box disclosed in Patent Document 1 includes an outer box and an inner box. Furthermore, a vacuum insulation material is arranged between the outer box and the inner box. The vacuum insulation material is arranged along the side walls of the outer box and the inner box. More specifically, the vacuum insulation material is composed of U-shaped components in plan view that are arranged along three side walls of the outer box and the inner box, and a flat-plate-shaped component that is arranged along the remaining side wall. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-212042 Summary of the Invention [Problem to be solved by the invention]

[0004] The housing (outer box) of a cooler box is designed to withstand loads. By suppressing deformation of the housing itself, deformation of the internal insulation material is prevented. Due to the protective structure for insulation, conventional cooler boxes have room for improvement in terms of storage capacity, especially when empty. [Means for solving the problem]

[0005] This specification discloses a cooler box. The cooler box includes a storage bag and multiple insulating panels. The storage bag can be unfolded into a box shape. The multiple insulating panels are detachably arranged on the inner surface of the storage bag. Each insulating panel has a flat plate shape and includes a flat insulating material and a protective panel. The multiple insulating panels include a front panel, a rear panel, a bottom panel, a right side panel, and a left side panel, which are arranged on the inner front, rear, bottom, right side, and left side of the storage bag. Furthermore, the front panel, rear panel, bottom panel, right side panel, and left side panel are each connected by a connecting cloth.

[0006] According to the above configuration, the front panel, rear panel, bottom panel, right side panel, and left side panel are connected by fabric, so these insulating panels can be folded inside the storage bag, and then the storage bag can be collapsed to reduce the volume of the cooler box.

[0007] In the above configuration, a plurality of connecting fabrics may be stretched from the front panel to connect to the rear panel, bottom panel, right side panel, and left side panel, respectively, so that the stretched length of the connecting fabrics connecting the front panel and the rear panel exceeds the front-to-rear dimension of the bottom panel, which is the dimension from the front panel to the rear panel.

[0008] According to the above configuration, the rear panel, bottom panel, right side panel, and left side panel can be folded toward the front panel, so that the cooler box can be stored in a collapsed state in the front-to-rear direction.

[0009] In addition, in the above configuration, the cooler box may include a waterproof inner bag that is detachably positioned inside the front panel, rear panel, bottom panel, right side panel, and left side panel contained in the storage bag.

[0010] According to the above configuration, the heat insulating panel is prevented from being exposed to moisture.

[0011] In the above configuration, the inner bag may include a base and an expanded diameter portion. The base has a depth equal to or greater than the heights of the front panel, rear panel, right side panel, and left side panel contained in the storage bag. The expanded diameter portion extends upward from the upper end of the base and has a larger diameter than the base. Furthermore, a fastening portion is provided on the outer surface of the expanded diameter portion for fastening to the inner surface of the storage bag.

[0012] According to the above-mentioned configuration, each of the heat insulating panels is surrounded by the storage bag and the inner bag, thereby ensuring airtightness around the heat insulating panels.

[0013] In the above configuration, the cooler box may include a belt that is fixed to the outer bottom surface of the storage bag when it is unfolded into a box shape and that extends to an adjuster attached to the outer rear surface of the storage bag.

[0014] When folding, the rear panel is pushed toward the front panel, creating a gap between the rear panel and the inner rear surface of the storage bag. At this time, the gap can be closed by pulling the belt. [Effects of the Invention]

[0015] The cooler box disclosed in this specification can be folded when empty, improving storage ease. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 2 is an exploded perspective view illustrating components of the cooler box according to the embodiment. [Figure 2] FIG. 1 is a perspective view illustrating an insulating panel set. [Figure 3] FIG. 10 is a perspective view illustrating how to fold the insulation panel set. [Figure 4] FIG. 10 is a perspective view illustrating the insulating panel set after folding is complete. [Figure 5] FIG. 10 is a perspective view illustrating how to crush the storage bag. DETAILED DESCRIPTION OF THE INVENTION

[0017] The cooler box according to this embodiment will be described below with reference to the drawings. The shapes, materials, quantities, and values ​​described below are examples for the purpose of explanation and can be changed as appropriate depending on the specifications of the cooler box. In addition, the same reference numerals will be used to designate the same elements in all drawings.

[0018] 1 to 5, a Cartesian coordinate system consisting of an X-axis, a Y-axis, and a Z-axis is used to represent the position and direction of each component. The X-axis is the front-to-back axis of the cooler box 10. The Y-axis is the left-to-right axis of the cooler box 10. The Z-axis is the height axis of the cooler box 10. For example, the cooler box 10 is composed of a horizontally long box body.

[0019] <Overall structure> The components that make up a cooler box 10 according to this embodiment are illustrated in Figure 1. The cooler box 10 includes a storage bag 20, an insulating panel set 30, an inner bag 60, and a lid panel 70.

[0020] The insulating panel set 30 is housed in the storage bag 20. As will be described later, the insulating panel set 30 is fastened to the inner surfaces of the storage bag 20, namely, the inner front surface 21, the inner rear surface 22, the inner right side surface 23, the inner left side surface 24, and the inner bottom surface 25, and functions as walls supporting these surfaces.

[0021] An inner bag 60 is housed inside the insulating panel set 30. As will be described later, the inner bag 60 is shaped to fit the inner surface of the insulating panel set 30. The top surface of the insulating panel set 30 is covered by the unfolded portion 65 of the inner bag 60.

[0022] The space within the base 61 of the inner bag 60 becomes the cold storage space. After the items are stored in this cold storage space, the lid panel 70 is placed on the unfolding portion 65 of the inner bag 60. Finally, the storage bag 20 is closed with the fastener 29.

[0023] <Storage bag> The storage bag 20 is a deformable, flexible bag that can be expanded into a box shape. The storage bag 20 is formed, for example, by sewing canvas. For example, in FIG. 1 , the storage bag 20 is shaped into a rectangular parallelepiped shape with the left-right direction as the longitudinal direction, in accordance with the shape of the insulation panel set 30. However, due to its flexibility, the storage bag 20 can also be deformed into shapes other than a rectangular parallelepiped shape.

[0024] The storage bag 20 has an inner surface and an outer surface. As the inner surface, the storage bag 20 has an inner front surface 21, an inner rear surface 22, an inner right side surface 23, an inner left side surface 24, and an inner bottom surface 25. The storage bag 20 also has an outer rear surface 22C as the back surface (opposite surface) of the inner rear surface 22, and an outer bottom surface 25C as the back surface of the inner bottom surface 25.

[0025] Hook and loop fasteners are attached to the inner surface of storage bag 20 as fastening parts. For example, the hook and loop fasteners are sewn to the inner surface of storage bag 20. More specifically, hook and loop fasteners 21A and 21B are attached to inner front surface 21. Similarly, hook and loop fasteners 22A and 22B are attached to inner rear surface 22. Hook and loop fasteners 23A and 23B are attached to inner right side surface 23, and hook and loop fasteners 24A and 24B are attached to inner left side surface 24.

[0026] Hook and loop fasteners 22A-24A are positioned higher than hook and loop fasteners 21B-24B. As will be described later, hook and loop fasteners 22A-24A are fastened to hook and loop fasteners 61A-64A positioned on enlarged diameter portion 63 of inner bag 60. Hook and loop fasteners 21B-24B are fastened to hook and loop fasteners 31B-34B of insulation panel set 30.

[0027] It should be noted that a hook-and-loop fastener need not be provided on the inner bottom surface 25 of the storage bag 20. As will be described later, a connecting cloth 42 is disposed between the inner bottom surface 25 and the bottom panel 35. Based on this arrangement, hook-and-loop fasteners are omitted from the inner bottom surface 25 and the bottom panel 35.

[0028] A male part 28A of the buckle is attached to an outer right side surface 23C of the storage bag 20. A female part 28B of the buckle is attached to an outer right side surface 24C of the storage bag 20. As shown in FIG. 5, which will be described later, when the cooler box 10 is folded and stored, the upper end portion of the storage bag 20 is rolled up, and then the male part 28A and the female part 28B of the buckle are joined together.

[0029] A belt 27 extends from the outer bottom surface 25C of the storage bag 20 to the outer rear surface 22C. For example, one end of the belt 27 is fixed to the outer bottom surface 25C by sewing or the like. The other end of the belt 27 passes through an adjuster 26 and is brought out to the outer rear surface 22C side. The adjuster 26 is fixed to the outer rear surface 22C by sewing or the like. For example, the adjuster 26 and the belt 27 are provided as a pair on the storage bag 20.

[0030] <Insulation panel set and cover panel> An example of an insulating panel set 30 is shown in Figures 1 and 2. Of the multiple insulating panels, the rear panel 32 is shown lying flat to clearly illustrate each component of the insulating panel set 30. The insulating panel set 30 has five insulating panels. That is, the insulating panel set 30 has a front panel 31, a rear panel 32, a right side panel 33, a left side panel 34, and a bottom panel 35. Each insulating panel is formed in a flat plate shape.

[0031] The insulating panel set 30 is detachably arranged on the inner surface of the storage bag 20. More specifically, the front panel 31 is attached to the inner front surface 21 of the storage bag 20. The rear panel 32 is attached to the inner rear surface 22. The right side panel 33 is attached to the inner right side surface 23. The left side panel 34 is attached to the inner left side surface 24. The bottom panel 35 is placed on the inner bottom surface 25 via a connecting cloth 42.

[0032] The front panel 31, rear panel 32, right side panel 33, left side panel 34, and bottom panel 35 are connected by connecting fabrics 42-45, respectively. The connecting fabrics 42-45 are made of polyester fabric, such as tarpaulin. Because the connecting fabrics 42-45 are flexible fabric parts, the front panel 31, rear panel 32, right side panel 33, left side panel 34, and bottom panel 35 are rotatable relative to each other.

[0033] 2, one end of each of the connecting pieces 42-45 is connected to the front panel 31. Connecting piece 43 extends from the one end and is connected from the front surface of the front panel 31 to the front end (front panel side end) of the right side panel 33. Connecting piece 44 is connected from the front surface of the front panel 31 to the front end of the left side panel 34.

[0034] For example, the widths of the connecting cloths 43 and 44 (the Z-direction dimension in FIG. 2) are set to be equal to or smaller than the height dimensions H3, H4 of the right side panel 33 and the left side panel 34. For example, the widths of the connecting cloths 43 and 44 are set to be in the range of 70% to 100% of the height dimensions H3, H4 of the right side panel 33 and the left side panel 34.

[0035] The length of the connecting cloth 43 (the dimension in the X direction in FIG. 2) is determined so as not to prevent the right-angle arrangement of the front panel 31 and the right side panel 33 as shown in FIG. 2. For example, the length of the connecting cloth 43 is determined to be equal to or greater than the thickness T1 of the front panel 31. Similarly, the length of the connecting cloth 44 is determined to be equal to or greater than the thickness T1 of the front panel 31.

[0036] In addition, connecting cloth 42 extends from the lower end of front panel 31 to the lower end of rear panel 32. Connecting cloth 45 extends from the lower end of front panel 31 and is connected to the front end of bottom panel 35 (front panel side end).

[0037] For example, the widths of connecting cloths 42 and 45 (dimension in the Y direction in FIG. 2) are set to be equal to or less than the width dimensions W2, W5 of rear panel 32 and bottom panel 35. For example, the widths of connecting cloths 42 and 45 are set to be in the range of 70% to 100% of the width dimensions W2, W5 of rear panel 32 and bottom panel 35. In addition, the length of connecting cloth 45 (dimension in the X direction in FIG. 2) is set to be equal to or greater than the thickness T5 of bottom panel 35, for example.

[0038] 2, in order to form a cold storage space, the front panel 31 faces the rear panel 32 with the bottom panel 35 in between. To achieve this facing arrangement, the connecting cloth 42 passes under the bottom panel 35, extends further from the rear end of the bottom panel 35, and is connected to the rear panel 32. To enable this arrangement, the length (extended length) of the connecting cloth 42 is set to exceed the front-to-rear dimension L5 of the bottom panel 35, which is the dimension from the front panel 31 to the rear panel 32.

[0039] By connecting one end of each of the connecting fabrics 42-45 to the front panel 31, the right side panel 33, the left side panel 34, the bottom panel 35, and the rear panel 32 are folded toward the front panel 31, as illustrated in Figure 4.

[0040] 2, the thicknesses T1-T5 of the front panel 31, rear panel 32, right side panel 33, left side panel 34, and bottom panel 35 are all equal. The heights H1-H4 of the front panel 31, rear panel 32, right side panel 33, and left side panel 34 are all equal. Note that "equal" here also includes being substantially equal. For example, even if there is a difference in these dimensions, the dimensions are considered to be equal as long as the difference falls within the tolerances set in the manufacturing process of these insulation panels.

[0041] The length L5 of the bottom panel 35 is set to be equal to or greater than the widths W3 and W4 of the right and left side panels 33 and 34. The widths W3 and W4 of the right and left side panels 33 and 34 are each set to be equal to or less than half the width W1 of the front panel 31.

[0042] By making the widths W3 and W4 of the right side panel 33 and the left side panel 34 equal to or less than half the width W1 of the front panel 31, the right side panel 33 and the left side panel 34 can be aligned side by side when folding the insulation panel set 30, as illustrated in Figure 4. This makes it possible to reduce the thickness L10 of the insulation panel set 30 when folded.

[0043] 2, the right side panel 33 includes a case 50, a heat insulating material 52, and a protective panel 53. The case 50 is a soft case, and is formed by sewing a cloth such as tarpaulin in the same manner as the connecting cloths 42-45.

[0044] Case 50 is, for example, bag-shaped with an open top. A flap 51 is provided as an extension to the top of case 50. A hook-and-loop fastener 51A is arranged on flap 51 as a fastening means. Further, hook-and-loop fastener 50A is provided on the main body of case 50. Case 50 is sealed when hook-and-loop fasteners 50A, 51A adhere to each other.

[0045] A hook-and-loop fastener 33B is also provided below hook-and-loop fastener 50A. Hook-and-loop fastener 33B is attached to hook-and-loop fastener 23B arranged on the inner right side surface 23 of storage bag 20 (see FIG. 1). In this way, right side panel 33 is detachably arranged on the inner right side surface 23 of storage bag 20 via hook-and-loop fasteners 23B, 33B.

[0046] A heat insulating material 52 and a protective panel 53 are housed inside the case 50. The heat insulating material 52 has a flat plate shape and is made of, for example, polyurethane. The protective panel 53 is arranged at least closer to the inner surface of the cooler box 10 than the heat insulating material 52. For example, the protective panel 53 covers at least the entire inner surface of the heat insulating material 52. In the example of FIG. 2, the protective panel 53 covers the inner surface, outer surface, and top surface of the heat insulating material 52. The protective panel 53 is made of, for example, a resin plate.

[0047] The left side panel 34 has a structure similar to that of the right side panel 33. That is, the left side panel 34 has a case 50. The case 50 houses a heat insulating material 52 and a protective panel 53 (not shown). The case 50 is further provided with a hook-and-loop fastener 34B. The hook-and-loop fastener 34B is attached to the hook-and-loop fastener 24B on the inner left side surface 24 of the storage bag 20.

[0048] The front panel 31, like the right side panel 33, has a case 50. The case 50 houses a heat insulating material 52 and a protective panel 53. The heat insulating material 52 has a flat plate shape and may be, for example, a vacuum insulation panel. A vacuum insulation panel is obtained by, for example, placing granular silica in a bag, drawing a vacuum, and shaping it into a flat plate shape.

[0049] In addition to the front panel 31, the bottom panel 35 and rear panel 32 have larger areas than the right side panel 33 and left side panel 34, so vacuum insulation panels with higher insulation properties than the right side panel 33 and left side panel 34 are housed in the case 50.

[0050] A hook-and-loop fastener 31B is arranged on the case 50 of the front panel 31. The hook-and-loop fastener 31B is removably attached to the hook-and-loop fastener 21B arranged on the inner front surface 21 of the storage bag 20 (see FIG. 1). Similarly, a hook-and-loop fastener 32B is arranged on the case 50 of the rear panel 32. The hook-and-loop fastener 32B is removably attached to the hook-and-loop fastener 22B arranged on the inner rear surface 22 of the storage bag 20.

[0051] Additionally, a loop 35A is attached to the upper surface (the surface exposed to the refrigerated space) of the bottom panel 35. The loop 35A is made of, for example, cloth and is collapsible. As will be described later, when the cooler box 10 is folded and stored, a finger is inserted into the loop 35A and the bottom panel 35 is pulled up.

[0052] 1, the lid panel 70, like the right side panel 33, includes a case 50, and a heat insulating material 52 and a protective panel 53 (not shown). The lid panel 70 is an insulating panel separated from the insulating panel set 30. The lid panel 70 is formed to be slightly larger than the bottom panel 35. For example, the lid panel 70 is placed on a rectangular frame formed by the upper edges of the front panel 31, rear panel 32, right side panel 33, and left side panel 34.

[0053] <Inner bag> As described above, the front panel 31, rear panel 32, right side panel 33, left side panel 34, and bottom panel 35 are housed inside the storage bag 20. The inner bag 60 is placed inside these insulating panels. The inner bag 60 is waterproof and made of a polyester fabric such as tarpaulin. The inner bag 60 functions as a lining that divides the heat-retaining space. The inner bag 60 has a square bottom to match the shape of the storage bag 20. In addition, creases 66 may be formed on the sides so that it can be folded when stored.

[0054] The inner bag 60 includes a base 61, an expansion portion 65, and an expanding portion 63. The base 61 is the lowermost portion of the inner bag 60, and is in contact with the front panel 31, the rear panel 32, the right side panel 33, the left side panel 34, and the bottom panel 35. The depth of the base 61 is equal to or greater than the height of each of the front panel 31, the rear panel 32, the right side panel 33, the left side panel 34, and the bottom panel 35.

[0055] The expanded diameter portion 63 extends upward from the upper end of the base portion 61. The expanded diameter portion 63 has a larger diameter than the base portion 61. An expanded portion 65 is provided between the base portion 61 and the expanded diameter portion 63. The base portion 61, the expanded diameter portion 63, and the expanded diameter portion 65 form a step structure.

[0056] For example, the unfolded portion 65 is placed over a frame formed by the upper edges of the front panel 31, the rear panel 32, the right side panel 33, and the left side panel 34. Furthermore, a lid panel 70 is placed on the unfolded portion 65.

[0057] A hook-and-loop fastener serving as a fastening portion is provided on the outer surface of the enlarged diameter portion 63. As described above, the inner bag 60 is expanded into a square-bottom bag shape, and hook-and-loop fasteners 61A-64A are arranged on each of the four outer surfaces. The hook-and-loop fasteners 61A-64A adhere to the hook-and-loop fasteners 21A-24A of the storage bag 20. In this way, the inner bag 60 is detachably attached to the storage bag 20.

[0058] The insulating panel set 30 is disposed between the containing bag 20 and the inner bag 60. By adopting such an arrangement, the sealing of the insulating panel set 30 is ensured.

[0059] <Cooler box folding process> The folding process of the cooler box 10 according to this embodiment is illustrated in Figures 3 to 5. To fold, the cover panel 70 (see Figure 1) is removed from the cooler box 10. Next, the inner bag 60 is peeled off from the storage bag 20. The inner bag 60 is folded into a sheet.

[0060] Next, as shown in Figure 3, a finger is inserted into loop 35A, and bottom panel 35 is pulled up toward front panel 31. Then, right side panel 33 and left side panel 34 are rotated toward front panel 31. Finally, rear panel 32 is moved toward front panel 31. Furthermore, as shown in Figure 4, lid panel 70 is also placed next to these panels.

[0061] As shown in Figure 4, the total thickness L10 of the folded panels is shorter than the front-to-rear dimension L11 of the unfolded insulation panel set 30. The front-to-rear dimension L11 is the sum of the front-to-rear dimension L5 of the bottom panel 35 (see Figure 2) and the thicknesses T1 and T2 of the front panel 31 and rear panel 32.

[0062] In this way, the cooler box 10 according to this embodiment has the insulation panels arranged vertically. For example, if a different storage method is adopted, such as stacking the bottom panel 35 as the lowest layer, there is a risk that a heavy object will be placed on top of the bottom panel. In such a case, a load exceeding the load capacity of the protective panel 53 may be applied to each panel, potentially damaging the insulation 52.

[0063] Therefore, in the cooler box 10 according to this embodiment, the insulation panels are arranged vertically, which would make the cooler box unstable if an object were placed on top of them. By arranging the panels in this manner, damage to the insulation material 52 can be prevented.

[0064] After the insulation panels are aligned vertically as shown in Figure 4, the inner bag 60, which has been folded into a sheet, is placed inside the storage bag 20. At this time, a space is created on the inner rear surface 22 side of the storage bag 20. To reduce this space, the belt 27 is pulled down by the adjuster 26, as shown in Figure 5. As described above, one end of the belt 27 is fixed to the outer bottom surface 25C of the storage bag 20, so when the belt 27 is pulled down, the side surface of the storage bag 20 contracts and the inner rear surface 22 is brought closer to the lid panel 70.

[0065] The upper end portions of the storage bag 20 are then aligned as shown in Figure 5 and rolled up. Finally, the male part 28A and female part 28B of the buckle are joined together. In this way, the front-to-back dimension of the cooler box 10 according to this embodiment is reduced by L20 when folded and stored. [Explanation of symbols]

[0066] 10 cooler box, 20 storage bag, 21 inner front, 22 inner rear, 22C outer rear, 23 inner right side, 23C outer right side, 24 inner left side, 24C outer right side, 25 inner bottom, 25C outer bottom, 26 adjuster, 27 belt, 30 insulation panel set, 31 front panel, 32 rear panel, 33 right side panel, 34 left side panel, 35 bottom panel, 42-45 connecting cloth, 52 insulation material, 53 protective panel, 60 inner bag, 61 base, 63 expansion part, 65 deployment part, 70 lid panel.

Claims

1. A storage bag that can be expanded into a box shape; A plurality of insulating panels detachably disposed on the inner surface of the storage bag; Equipped with Each of the insulation panels has a flat plate shape and includes a flat plate-shaped insulation material and a protective panel; The plurality of heat insulating panels include a front panel, a rear panel, a bottom panel, a right side panel, and a left side panel, which are arranged on an inner front surface, an inner rear surface, an inner bottom surface, an inner right side surface, and an inner left side surface of the storage bag, the front panel, the rear panel, the bottom panel, the right side panel, and the left side panel are connected by connecting fabrics, a plurality of connecting fabrics extending from the front panel and connecting to the rear panel, the bottom panel, the right side panel, and the left side panel, respectively; The extension length of the connecting fabric connecting the front panel and the rear panel exceeds the front-to-rear dimension of the bottom panel, which is the dimension from the front panel to the rear panel. Cooler box.

2. The cooler box according to claim 1, a waterproof inner bag that is detachably arranged inside the front panel, the rear panel, the bottom panel, the right side panel, and the left side panel that are housed in the housing bag; Cooler box.

3. The cooler box according to claim 2, The inner bag includes a base portion having a depth equal to or greater than the height of each of the front panel, the rear panel, the right side panel, and the left side panel contained in the storage bag, and an expanded diameter portion extending upward from an upper end of the base portion and having a larger diameter than the base portion, A fastening portion for fastening to the inner surface of the containing bag is provided on the outer surface of the enlarged diameter portion. Cooler box.

4. The cooler box according to any one of claims 1 to 3, A belt is provided which is fixed to the outer bottom surface of the container bag when the container bag is unfolded into a box shape and which extends to an adjuster attached to the outer rear surface of the container bag. Cooler box.

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