Cooler box

Abstract

To provide a cooler box that can improve operability of a lid member.SOLUTION: A cooler box 1 includes a box body 3 and a lid member 5. The box body 3 has a sidewall 13 and an opening 15. The lid member 5 has an outer shell 21, an inner shell 23, a heat insulating material 25, and an air guide part 27. The inner shell 23 is disposed inside the outer shell 21. The inner shell 23 covers the opening 15. The inner shell 23 has a mounted surface 35. The mounted surface 35 is placed on an end surface 13a of the sidewall 13. The heat insulating material 25 is disposed in a storage space S of the lid member 5. The air guide part 27 penetrates the inner shell 23 between the heat insulating material 25 and the mounted surface 35. The air guide part 27 guides air from inside the box body 3 to outside the outer shell 21.SELECTED DRAWING: Figure 5

Description

[Technical Field]

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

[0002] The cooler box of Patent Document 1 comprises a main body forming a refrigerated compartment and a lid member. The lid member has an outer frame, an inner lid, a heat insulating material, small holes, and a breathable waterproof sheet. The inner lid is attached to the outer frame. The outer frame and inner frame cover the opening of the main body. The heat insulating material is disposed in the storage space between the outer frame and the inner frame. The heat insulating material is in contact with the bottom of the inner lid.

[0003] The small holes penetrate the bottom of the inner lid and extend from the cold storage compartment of the main body toward the insulation. The breathable waterproof sheet is used to prevent moisture from the cold storage compartment from reaching the insulation through the small holes. The breathable waterproof sheet is attached to the inside of the inner lid on the cold storage compartment side so as to cover the small holes.

[0004] The cooler box of Patent Document 2 comprises a container portion forming a cold storage compartment and a lid portion. The lid portion has an outer shell portion, an inner shell portion, a heat insulating material, and a drain hole. The inner shell portion is provided on the outer shell portion. The outer shell portion and the inner shell portion cover the opening of the main body. The heat insulating material is disposed in the storage space between the outer shell portion and the inner shell portion. The drain hole is used to drain water that has entered the heat insulating material. The drain hole is provided on the inner peripheral side of the packing groove of the inner shell portion. The drain hole penetrates the bottom of the inner shell portion and extends from the cold storage compartment of the container portion toward the heat insulating material. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 4308048 [Patent Document 2] Patent No. 3993701 Summary of the Invention [Problem to be solved by the invention]

[0006] Generally, when the temperature of the cold storage compartment of a cooler box drops below the temperature outside the cooler box, the cold storage compartment goes into a negative pressure state, which increases the adhesion of the lid member of the cooler box to the box body, making it difficult to open the lid member.

[0007] The cooler box of Patent Document 1 reduces the adhesion by providing small holes in the inner lid. However, in this cooler box, the small holes are covered with insulating material, making it difficult to sufficiently guide the air from the refrigerated compartment into the storage space between the outer frame and the inner frame. In other words, with the cooler box of Patent Document 1, it is difficult to sufficiently reduce the pressure in the refrigerated compartment.

[0008] In addition, the breathable waterproof sheet covers the small holes. Because the small holes are small, delicate manual work is required to attach the breathable waterproof sheet to the small holes. This may reduce the ease of assembly of the cooler box. In addition, because the breathable waterproof sheet is a special waterproof sheet, there is a problem of increased costs.

[0009] The cooler box of Patent Document 2 has drainage holes that extend from the cold storage compartment of the container toward the insulating material on the inner circumferential side of the packing groove of the inner shell. The drainage holes are intended to drain water that has entered the insulating material, but can be used in the same way as the small holes in the cooler box of Patent Document 1.

[0010] However, in the cooler box of Patent Document 2, the drainage holes are covered with insulating material, just like in the cooler box of Patent Document 1, making it difficult to sufficiently reduce the pressure in the cold storage compartment. Furthermore, this configuration assumes that moisture in the cold storage compartment will penetrate the insulating material, which could degrade the performance of the insulating material. In other words, in the cooler box of Patent Document 2, there is a risk of degrading the performance of the lid member.

[0011] An object of the present invention is to provide a cooler box that can improve the operability of the lid member. Another object of the present invention is to provide a cooler box that can improve the assembly of the lid member, reduce the cost of the lid member, and prevent deterioration of the performance of the lid member. [Means for solving the problem]

[0012] According to a first aspect of the present invention, a cooler box includes a box body and a lid member. The box body has a sidewall and an opening. The sidewall surrounds and extends from a bottom. The opening is formed by an inner peripheral edge at a tip of the sidewall. The lid member has an outer shell, an inner shell, a thermal insulator, and an air guide.

[0013] The inner shell is disposed inside the outer shell. The inner shell forms a storage space together with the outer shell. The inner shell covers the opening. The inner shell has a support surface. The support surface is placed on an end surface of the side wall. The heat insulating material is disposed in the storage space. The air guide portion penetrates the inner shell between the heat insulating material and the support surface. The air guide portion guides air from inside the box body to outside the outer shell.

[0014] In the cooler box according to the first aspect of the present invention, the air guide penetrates the inner shell between the insulating material and the support surface, guiding air from inside the box body to outside the outer shell. With this configuration, the air flow from inside the box body to outside the outer shell is not obstructed by the insulating material, so the pressure inside the box body can be reduced appropriately. In other words, this cooler box allows for improved operability of the lid member.

[0015] In addition, with this cooler box, the air guide section is not covered by the insulating material, so there is no need to prepare a waterproof sheet or the like. In other words, with this cooler box, the assembly of the lid member can be improved and the cost of the lid member can be reduced. Furthermore, with this cooler box, moisture inside the box body does not penetrate into the insulating material through the air guide section, so deterioration of the insulating material's performance, i.e., deterioration of the lid member's performance, can be suppressed.

[0016] With regard to the second aspect of the present invention, the cooler box according to the first aspect may be configured as follows: The cooler box further includes a sealing member. The sealing member is provided on the inner shell. The sealing member is disposed between the end surface of the side wall and the inner shell. The first air guide portion is provided between the insulating material and the sealing member.

[0017] In the cooler box according to the second aspect of the present invention, the first air guide is provided between the heat insulating material and the seal member, with the seal member being disposed between the end face of the side wall and the inner shell. In this configuration, by providing the first air guide between the heat insulating material and the seal member, the pressure inside the box body can be suitably reduced.

[0018] With respect to the third aspect of the present invention, the cooler box according to the second aspect may be configured as follows: The inner shell has a retaining groove that retains the sealing member. The first air guide section has a through hole and a first guide passage. The through hole penetrates the bottom surface of the retaining groove. The first guide passage extends from the through hole toward the inside of the box body, between the wall surface of the retaining groove on the insulating material side and the sealing member.

[0019] In the cooler box according to the third aspect of the present invention, the through-hole of the first air guide section and the first guide passage of the first air guide section are provided between the heat insulating material and the sealing member by utilizing a retaining groove. This simple configuration makes it possible to effectively reduce the pressure inside the box body.

[0020] With respect to the fourth aspect of the present invention, the cooler box according to the third aspect may be configured as follows: The first guide passage is a first groove portion, and the first groove portion is provided on the wall surface of the holding groove on the side of the heat insulating material.

[0021] In the cooler box according to the fourth aspect of the present invention, by providing the first groove portion on the wall surface of the holding groove on the side of the heat insulating material, the first guide passage can be easily formed without processing the sealing member.

[0022] With regard to the fifth aspect of the present invention, the cooler box according to the second aspect may be configured as follows: the air guide portion has a second air guide portion. The second air guide portion is connected to the first air guide portion. The second air guide portion is provided between the outer shell and the inner shell.

[0023] In the cooler box according to the fifth aspect of the present invention, the air inside the box body that has passed through the first air guide section is guided to the outside of the outer shell by the second air guide section, which allows the pressure inside the box body to be reduced more effectively.

[0024] With respect to a sixth aspect of the present invention, the cooler box according to the fifth aspect may be configured as follows: the second air guide section has a second guide passage, and the second guide passage extends from the first air guide section away from the insulating material.

[0025] In the cooler box according to the sixth aspect of the present invention, the air inside the box body that has passed through the first air guide portion can be suitably guided to the outside of the outer shell by the second guide passage.

[0026] With regard to a seventh aspect of the present invention, the cooler box according to the sixth aspect may be configured as follows: The second guide passage is a second groove portion provided in the inner shell between the joining surfaces of the inner shell and the outer shell joined to the inner shell.

[0027] In the cooler box according to the seventh aspect of the present invention, by providing a second groove portion in the portion of the inner shell that is joined to the joining surface of the outer shell, the pressure inside the box body can be more effectively reduced with a simple configuration. [Effects of the Invention]

[0028] According to the present invention, the operability of the lid member in the cooler box can be improved. [Brief explanation of the drawings]

[0029] [Figure 1] FIG. [Figure 2] FIG. 2 is an overall perspective view of the cooler box with the lid member removed. [Figure 3] This is an overall perspective view of the cooler box with the outer shell and insulation removed. [Figure 4] FIG. 2 is a partially enlarged cross-sectional view taken along line IX in FIG. [Figure 5] FIG. 5 is a further enlarged cross-sectional view of FIG. 4 for explaining the air guide portion. [Figure 6] FIG. 4 is a partially enlarged perspective view illustrating an air guide portion. DETAILED DESCRIPTION OF THE INVENTION

[0030] As shown in Fig. 1, a cooler box 1 according to one embodiment of the present invention has a box body 3, a lid member 5, and a sealing member 7 (see Fig. 4). The box body 3 is formed in a rectangular box shape. As shown in Figs. 1 and 2, a handle 8 is attached to the side of the box body 3.

[0031] In the following description, the direction in which gravity acts when the box body 3 is in contact with the ground is defined as "downward" and "lower side." The direction opposite to the direction in which gravity acts is defined as "upward" and "upper side."

[0032] As shown in Fig. 1, the box body 3 has a bottom 11 and a side wall 13. As shown in Fig. 2, the box body 3 has an opening 15. In this embodiment, as shown in Figs. 1 and 2, the bottom 11 is formed in a rectangular shape. The bottom 11 may have other shapes.

[0033] As shown in FIGS. 1 and 2, the sidewall 13 surrounds the bottom 11 and extends from the bottom 11. Specifically, the sidewall 13 is integrally formed with the outer periphery of the bottom 11 and extends upward from the outer periphery of the bottom 11. A heat insulating material 13b (see FIG. 4) is preferably disposed inside the sidewall 13. As shown in FIG. 2, the opening 15 is formed by an upper end portion 13a1 of the sidewall 13. Specifically, the opening 15 is formed by the inner peripheral edge of the upper end portion 13a1 of the sidewall 13.

[0034] The lid member 5 shown in FIG. 1 is formed separately from the box body 3. The lid member 5 is detachably attached to the box body 3 via a hook 9. The lid member 5 covers the opening 15 of the side wall 13 shown in FIG. 2. As shown in FIGS. 1, 3, and 4, the lid member 5 has an outer shell 21 (see FIGS. 1 and 4), an inner shell 23 (see FIGS. 3 and 4), a heat insulating material 25 (see FIGS. 3 and 4), and an air guide portion 27 (see FIGS. 3 and 4).

[0035] As shown in Fig. 1, outer shell 21 forms the outer surface of lid member 5. As shown in Fig. 4, outer shell 21 has a first bonding surface 22 that is bonded to inner shell 23. First bonding surface 22 is provided on the lower surface of outer shell 21, at the outer periphery of outer shell 21. First bonding surface 22 is bonded to second bonding surface 37 of inner shell 23, which will be described later.

[0036] As shown in FIG. 4 , the inner shell 23 is disposed inside the outer shell 21 and attached to the outer shell 21. The inner shell 23 forms the lower surface of the lid member 5. The inner shell 23 covers the opening 15 of the box body. More specifically, with the lid member 5 attached to the box body 3 by the hooks 9, the inner shell 23 covers the opening 15 of the box body. In this state, the inner shell 23 is disposed between the box body 3 and the outer shell 21.

[0037] As shown in Fig. 4, inner shell 23 and outer shell 21 form a storage space S. Storage space S is formed between the inner surface of outer shell 21 and the upper surface of inner shell 23. As shown in Fig. 3, inner shell 23 has a main body portion 29 and a pair of wall portions 31a, 31b. As shown in Fig. 4, inner shell 23 further has a holding groove 33, a mounting surface 35, and a second joining surface 37.

[0038] 3, the main body 29 is formed in a substantially rectangular shape. The pair of walls 31a, 31b are provided on the upper surface of the main body 29 along the outer periphery of the main body 29. Specifically, the pair of walls 31a, 31b protrude upward from the upper surface of the main body 29 and extend along the outer periphery of the main body 29. Each of the pair of walls 31a, 31b is formed in a U-shape when viewed from above. Both ends of the wall 31a and both ends of the wall 31b are arranged at a predetermined distance from each other.

[0039] As shown in FIG. 4 , the holding groove 33 is configured to hold the seal member 7. The holding groove 33 is provided on the lower surface of the main body 29 along the outer periphery of the main body 29. More specifically, the holding groove 33 is recessed upward from the lower surface of the main body 29 and extends along the outer periphery of the main body 29. The holding groove 33 is provided between the heat insulating material 25 and the mounting surface 35. The seal member 7 is placed in the holding groove 33.

[0040] 4, the mounting surface 35 is a surface that is placed on the upper end surface 13a2 of the side wall 13. The mounting surface 35 is provided on the lower side surface of the main body portion 29 along the outer periphery of the main body portion 29. The mounting surface 35 is provided outside the holding groove 33 when viewed from above.

[0041] The second bonding surface 37 is a surface where the inner shell 23 is bonded to the outer shell 21. The second bonding surface 37 is bonded to the first bonding surface 22 of the outer shell 21. The second bonding surface 37 is provided on the upper side surface of the main body portion 29, at the outer periphery of the main body portion 29. As shown in FIG. 3 , the second bonding surface 37 is provided between both ends of the wall portion 31a and both ends of the wall portion 31b.

[0042] As shown in Fig. 4, the heat insulating material 25 is disposed in the storage space S of the lid portion. More specifically, the heat insulating material 25 is disposed in the storage space S formed by the inner shell 23 and the outer shell 21. As shown in Fig. 3, the heat insulating material 25 is disposed inside the pair of wall portions 31a, 31b when viewed from above.

[0043] 5, the air guide portion 27 is configured to guide air from the inside of the box body 3 to the outside of the outer shell 21. The air guide portion 27 penetrates the inner shell 23 between the heat insulating material 25 and the placement surface 35.

[0044] 5 and 6, the air guide section 27 has a first air guide section 41 and a second air guide section 43. As shown in Fig. 5, the first air guide section 41 is provided between the heat insulating material 25 and the seal member 7.

[0045] 5 and 6, the first air guide portion 41 has a through hole 41a and a first guide passage 41b. The through hole 41a penetrates the bottom surface of the holding groove 33. In detail, the through hole 41a penetrates from the bottom surface of the holding groove 33 toward the second joint surface 37 of the inner shell 23.

[0046] As shown in Fig. 5, the first guide passage 41b extends from the through hole 41a toward the inside of the box body 3 between the wall surface 33a of the holding groove 33 on the heat insulating material 25 side and the sealing member 7. In this embodiment, as shown in Fig. 6, the first guide passage 41b is a first groove portion. The first groove portion 41b is provided in the wall surface 33a of the holding groove 33 on the heat insulating material 25 side.

[0047] As shown in Figures 5 and 6, the second air guide section 43 is connected to the first air guide section 41. The second air guide section 43 is provided between the outer shell 21 and the inner shell 23. The second air guide section 43 has a second guide passage 43a. The second guide passage 43a extends from the first air guide section 41 so as to be away from the thermal insulation material 25. Specifically, the second guide passage 43a extends from the through hole 41a so as to be away from the thermal insulation material 25.

[0048] In this embodiment, as shown in Figures 5 and 6, the second guide passage 43a is a second groove portion. As shown in Figure 5, the second groove portion 43a is provided in the second joint surface 37 of the inner shell 23, between the second joint surface 37 of the inner shell 23 and the first joint surface 22 of the outer shell 21. As shown in Figures 5 and 6, the second groove portion 43a extends from the through hole 41a on the second joint surface 37 of the inner shell 23 so as to be away from the thermal insulation material 25.

[0049] As shown in Figures 4 and 5, the sealing member 7 is provided on the inner shell 23. The sealing member 7 is disposed between the upper end surface 13a2 of the side wall 13 and the inner shell 23. The sealing member 7 is disposed between the heat insulating material 25 and the placement surface 35. The sealing member 7 is disposed in and held by the holding groove 33. When the cover member 5 is attached to the box body 3 by the hook 9, the sealing member 7 comes into contact with the upper end surface 13a2 of the side wall 13.

[0050] Cooler box 1 having the above configuration has the following features: In cooler box 1, air guide portion 27 penetrates inner shell 23 between heat insulating material 25 and support surface 35, and guides air from inside box body 3 to the outside of outer shell 21.

[0051] In this configuration, the air flowing from inside the box body 3 to the outside of the outer shell 21 is not obstructed by the insulating material 25, so the pressure inside the box body 3 can be suitably reduced. That is, in this cooler box 1, the operability of the lid member 5 can be improved.

[0052] Furthermore, in cooler box 1, air guide portion 27 is not covered by insulating material 25, so there is no need to prepare a waterproof sheet or the like. That is, in cooler box 1, the assembly of lid member 5 can be improved and the cost of lid member 5 can be reduced. Furthermore, in cooler box 1, moisture inside box body 3 does not penetrate into insulating material 25 through air guide portion 27, so degradation of the performance of insulating material 25, i.e., degradation of the performance of lid member 5, can be suppressed.

[0053] In the cooler box 1, the first air guide section 41 is provided between the heat insulating material 25 and the seal member 7, with the seal member 7 being disposed between the upper end surface 13a2 of the side wall 13 and the inner shell 23. In this configuration, by providing the first air guide section 41 between the heat insulating material 25 and the seal member 7, the pressure inside the box body 3 can be suitably reduced.

[0054] In cooler box 1, through-hole 41a of first air guide section 41 and first guide passage 41b of first air guide section 41 are provided between heat insulating material 25 and sealing member 7 by utilizing retaining groove 33. With this simple configuration, the pressure inside box body 3 can be suitably reduced.

[0055] In the cooler box 1, the first groove portion 41b is provided on the wall surface 33a of the holding groove 33 on the side of the heat insulating material 25, so that the first guide passage 41b can be easily formed without processing the seal member 7.

[0056] In the cooler box 1, the air inside the box body 3 that has passed through the first air guide section 41 is guided to the outside of the outer shell 21 by the second guide passage 43a of the second air guide section 43. With this configuration, the pressure inside the box body 3 can be reduced more effectively.

[0057] In the cooler box 1, by providing the second groove portion 43a on the second joint surface 37 of the inner shell 23, the pressure inside the box body 3 can be reduced more suitably with a simple configuration. [Explanation of symbols]

[0058] 1 cooler box 3 Box body 5 Cover member 7 Sealing material 11 Bottom 13 Side wall 13a Upper end surface of side wall 15 Opening 22 1st joint surface 23 Inner shell 25 Insulation 27 Air guide section 33 Retaining groove 33a Wall surface of the retaining groove on the insulation side 35 Placement surface 37 Second joint surface 41 First air guide section 41a Through hole 41b First guide passage, first groove portion 43 Second air guide section 43a Second guide passage, second groove portion S Storage space

Claims

1. a box body having a bottom, a sidewall surrounding the bottom and extending from the bottom, and an opening formed by an inner peripheral edge at a tip of the sidewall; an outer shell; an inner shell disposed inside the outer shell, forming a storage space together with the outer shell, having a placement surface placed on an end surface of the side wall and covering the opening; a heat insulating material disposed in the storage space; and a lid member having an air guide portion that penetrates the inner shell between the heat insulating material and the placement surface and guides air from inside the box body to outside the outer shell; A cooler box equipped with:

2. a seal member provided on the inner shell and disposed between the end surface of the side wall and the inner shell; Furthermore, The air guide portion includes a first air guide portion provided between the heat insulating material and the seal member. The cooler box according to claim 1.

3. the inner shell has a retaining groove for retaining the seal member; The first air guide portion has a through hole penetrating a bottom surface of the holding groove, and a first guide passage extending from the through hole toward the inside of the box body between a wall surface of the holding groove on the heat insulating material side and the sealing member. The cooler box according to claim 2.

4. The first guide passage is a first groove portion provided in the wall surface of the holding groove on the side of the heat insulating material. The cooler box according to claim 3.

5. The air guide portion is connected to the first air guide portion and has a second air guide portion provided between the outer shell and the inner shell. The cooler box according to claim 2.

6. the second air guide portion has a second guide passage extending from the first air guide portion away from the thermal insulation material; The cooler box according to claim 5.

7. The second guide passage is a second groove portion provided in the inner shell between the inner shell and a joining surface of the outer shell joined to the inner shell. The cooler box according to claim 6.

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