TW202124230A - Cold insulation box to provide a cold insulation box in which water is difficult to enter a thermally insulated material filling space - Google Patents

Abstract

The subject of the present invention is to provide a cold insulation box in which water is difficult to enter a thermally insulated material filling space. The solution of the present invention is a cold insulation box, which is characterized by: a box body 2 formed by fitting an outer box 5 and an inner box 6, a thermally insulated material arranged in the thermally insulated material filling space 7 between the outer box 5 and the inner box 6, a cover body 3 for opening and closing the opening portion of the box body 2, and a water stop portion M formed by fitting a side wall 11 of the outer box 5 and the flange portion 33 that protrudes outwards from the tip end of the inner box 6. The side wall 11 of the outer box 5 has an outer box protrusion portion 16 which is further protruding outwards than the side wall 11, and the flange portion 33 of the inner box 6 has an inner box protrusion portion 52 protruding outwards. The outer box protrusion portion 16 and the inner box protrusion portion 52 are fit at further outside than the water stop portion M.

Description

Cold box

The present invention relates to a cold storage box.

A storage space is formed in the cold storage box in which a refrigerant (refrigerant) can be stored together with storage items such as caught fish, drinks, and food. The containment space is isolated from the outside air, and can keep fish and other containment items from being heated by the outside air.

For example, Patent Document 1 discloses a cold insulation box having: a box body formed by fitting an outer box and an inner box; a heat insulating material (heat insulating material) arranged between the outer box and the inner box; The opening of the box body opens and closes.

Fig. 6 is an example of a conventional cold storage box, and is a cross-sectional view showing a fitting portion after the outer box and the inner box are fitted. As shown in Fig. 6, the inner box 101 has a fitting groove 102 formed all over the outer periphery of the tip side and opening downward. The fitting convex portion 111 arranged at the tip of the outer box 110 is fitted into the fitting groove 102 to form a fitting portion. In addition, the inner surface of the fitting groove 102 is in contact with the outer surface of the fitting convex portion 111 to form a water stop 120 that prevents water from entering. An insulating material filled space 130 filled with an insulating material (not shown) is formed between the inner box 101 and the outer box 110.

[Patent Document 1] Japanese Patent Application Publication No. 2000-4753

Since the conventional cold storage box shown in FIG. 6 has a structure in which water easily hits the water stop 120, if it is used in heavy rain or washed with strong water pressure, water will penetrate from the water stop 120 to the insulation. The problem of material filling the space 130. Furthermore, if water adheres to the fitting convex portion 111, there is a problem that the water is sucked up by the capillary phenomenon of the water stop portion 120, and the water penetrates into the insulating material filled space 130. Since water easily transfers heat, there is a problem that when water enters the insulating material-filled space 130, the thermal insulation performance is reduced.

The present invention is a creation made to solve the aforementioned problems, and its purpose is to provide a cold storage box in which water is difficult to enter the space filled with the insulating material.

In order to achieve the foregoing object, the cold insulation box of the present invention is characterized by having: a box body formed by fitting the outer box and the inner box; an insulating material, which is arranged between the outer box and the inner box to fill the space with the insulating material; The cover body opens and closes the opening of the box body; and the water stop is formed by fitting the side wall of the outer box with a flange portion protruding outward from the top end of the inner box, and the outer The side wall of the box has an outer box protrusion that protrudes further outward than the side wall, the flange portion of the inner box has an inner box protrusion that protrudes outward, and the outer box protrusion and the inner box protrusion are more than the aforementioned The water part is also attached to the outside.

According to this, since the outer side of the water stop is protected by the outer box protrusion and the inner box protrusion, it is possible to prevent water from directly hitting the water stop. According to this, it is possible to prevent water from penetrating into the insulating material of the cold storage box to fill the space.

Furthermore, it is preferable that a drainage hole is formed in the protrusion of the outer box. According to this, even if water enters the outer box protrusion from the bonded portion, the water accumulated in the outer box protrusion can be discharged to the outside of the cold storage box.

Furthermore, it is preferable that the protruding portion of the outer box slope downward toward the drain hole. According to this, the water accumulated in the protrusion of the outer box can be efficiently discharged to the outside.

Moreover, the fitting recesses formed by the inner ribs and outer ribs of the flange part are fitted with the fitting convex parts arranged at the top end of the side wall of the outer box to form a fitting part. The outer rib is in contact with the fitting convex portion to form the water stop, and the top end of the outer rib is preferably separated from the outer box protrusion.

According to this, since water can be prevented from intruding into the insulating material-filled space by the capillary phenomenon, the water-stopping performance can be further improved.

Furthermore, it is preferable that the bonding surface formed by bonding the front end surface of the outer box protrusion part and the front end surface of the inner box protrusion part is parallel to the upper surface of the cover body. According to this, since it is difficult for water to enter from the bonding surface, the water stopping performance can be further improved.

According to the present invention, it is possible to obtain a cold storage box in which it is difficult for water to enter the space filled with the insulating material.

Hereinafter, the cold storage box according to the embodiment of the present invention will be described with reference to the drawings. In each embodiment, the same symbols are assigned to the same parts, and repeated descriptions are omitted. In the description, [up and down], [left and right], and [front and rear] follow the arrows in Figure 1.

(Cold box) As shown in FIGS. 1 and 2, the cold storage box 1 of the present embodiment is a box formed in a rectangular parallelepiped shape that is longer than the front-rear direction in the left-right direction. The cold storage box 1 is mainly composed of a box body 2 and a cover 3 and locking levers 4 and 4. A storage space S (refer to FIG. 2) in which a cooling agent can be stored together with storage items such as caught fish, drinks, food, etc. is formed in the inside of the cold storage box 1 (see FIG. 2).

As shown in FIG. 2, the box body 2 includes an outer box 5 and an inner box 6 and an insulating material filled space 7 filled with an insulating material (not shown). The insulating material filling space 7 is formed all over the circumference. As the heat insulating material, for example, urethane foam, styrene foam, and the like can be used. The cold insulation box 1 has a three-layer structure of the outer box 5, the inner box 6 and the insulation material, and can exhibit high insulation performance. In addition, the cold storage box 1 of the present embodiment has a symmetrical structure in the front and rear and left and right directions.

(Outer box) As shown in FIG. 3, the outer box 5 is a resin-made bottomed cylindrical member composed of a bottom wall 10 and four side walls 11. The bottom wall 10 has a rectangular shape that is long in the left-right direction (also referred to as the width direction). The side wall 11 rises substantially perpendicularly from the periphery of the bottom wall 10. The side walls 11 are referred to as side walls 11A, side walls 11B, side walls 11C, and side walls 11D, and they are distinguished as necessary. The side walls 11A and 11B face each other and are parallel to the left-right direction. The side walls 11C and 11D face each other and are parallel to the front-rear direction.

Among the top ends of the outer box 5, the parts corresponding to the side walls 11A and 11B are formed at a lower position than the parts corresponding to the side walls 11C and 11D. In addition, the portion corresponding to the side walls 11A and 11B among the top end portions of the outer box 5 is inclined downward toward the center portion in the left-right direction.

As shown in FIG. 4, the fitting convex part 15 and the outer box protrusion part 16 are formed in the front-end|tip part of the outer box 5 over the whole circumference. The fitting convex portion 15 is a protrusion arranged at the top end of the side wall 11 and is thinner than other parts of the side wall 11. The outer box protrusion 16 protrudes from the side wall 11 to the outside (the side wall 11 is the opposite side of the storage space S), and extends upward at the same time. In more detail, the outer box protrusion 16 has a first upright portion 16a protruding diagonally upward from the side wall 11A, and a second upright portion that rises in the vertical direction from the end of the first upright portion 16a. 16b constitutes.

As shown in FIG. 3 and FIG. 5, in the part corresponding to the side walls 11A and 11B in the outer box protrusion part 16, the drainage hole 17 is formed in the center part in the left-right direction. The drain hole 17 is formed by penetrating in the vertical direction with a predetermined width on the base end side of the first rising portion 16a of the outer box projecting portion 16.

As shown in FIG. 4, a boss support portion 18 and a hub hole 19 are formed in the side wall 11. The hub support portion 18 is a portion that protrudes inward from the inner surface of the side wall 11 to support the hub hole 19. The hub hole 19 is erected from the hub support part 18, and a threaded groove is formed inside. The hub support part 18 and the hub hole 19 are formed in the upper part of the side wall 11 at predetermined intervals in plural places.

(Inner box) As shown in FIG. 3, the inner box 6 is a bottomed cylindrical member made of resin composed of a bottom wall 30 and four side walls 31. Since the inner box 6 is housed in the outer box 5 except for the top end, it is formed to be a circle smaller than the outer box 5. The bottom wall 30 has a rectangular shape that is long in the left-right direction. The side wall 31 rises substantially perpendicularly from the periphery of the bottom wall 30. The side walls 31 are called side walls 31A, side walls 31B, side walls 31C, and side walls 31D, and they are distinguished as necessary. The side walls 31A and 31B face each other and are parallel to the left-right direction. The side walls 31C and 31D face each other and are parallel to the front-rear direction.

A folded-back wall portion 32 and a flange portion 33 are formed at the top end portion of the inner box 6. As shown in FIG. 2, the folded-back wall portion 32 is formed to be folded back outward from the tips of the side walls 31A, 31B, and is substantially parallel to the side walls 31A, 31B.

As shown in Figures 2 and 3, the flange portion 33 is a portion protruding outward from the side walls 31C, 31D and the folded-back wall portion 32, and is provided by the first flange portion 41, the second flange portion 42, and the third protrusion The edge portion 43, the first inclined flange portion 44, and the second inclined flange portion 45 are constituted. Since the inner box 6 is also symmetrically formed back and forth and left and right, the corner on the right side of the front is illustrated here as an example.

The first flange portion 41 protrudes toward the outside (right side) from the side wall 31D. The first flange portion 41 is formed over the entire front and rear direction of the side wall 31D. The second flange portion 42 protrudes toward the outside (front side) in the right end side of the turn-back wall portion 32. The second flange portion 42 is formed at a lower position than the first flange portion 41. A lock lever 4 is arranged opposite to the second flange portion 42.

The third flange portion 43 protrudes from the lower end of the folded-back wall portion 32 toward the outside (front side). The third flange portion 43 is inclined downward from the second inclined flange portion 45 toward the central portion.

The first inclined flange portion 44 protrudes outward (front side) from the right end of the folded-back wall portion 32, and connects the first flange portion 41 and the second flange portion 42 obliquely. The second inclined flange portion 45 protrudes outward (front side) from the folded-back wall portion 32 and connects the second flange portion 42 and the third flange portion 43 obliquely.

As shown in FIG. 4, on the bottom surface of the flange portion 33, a fitting concave portion 60 into which the fitting convex portion 15 of the outer box 5 is fitted is formed over the entire circumferential direction. Here, the third flange portion 43 is exemplified, and the structure of the fitting portion will be described. The third flange portion 43 is formed by the flange body 51 and the inner box protrusion 52. The flange body 51 protrudes outward (front side) from the lower end of the folded-back wall portion 32. An inner rib 53 extending from the bottom surface to the lower side is formed on the front end side of the flange main body 51. In the flange main body 51, a screw hole 55 is formed in the center part in the left-right direction. The threaded hole 55 communicates with the hub hole 19. By screwing the screw R from the threaded hole 55 to the hub hole 19, the outer box 5 and the inner box 6 can be firmly locked.

The inner box protrusion 52 protrudes further to the outside (front side) from the top end of the flange body 51. The inner box projecting portion 52 is formed between the second inclined flange portions 45 and 45 that face each other in the left-right direction (refer to FIG. 3 ). The inner box projecting portion 52 is composed of an inclined portion 52a that is inclined downward as it goes to the outside (front side), and a hanging portion 52b that hangs down from the tip of the inclined portion 52a. The inclined portion 52a of the inner box projecting portion 52 is formed with an outer rib 54 extending from the bottom surface to the lower side.

The front end surface 52c of the inner box protrusion part 52 and the front end surface 16c of the outer box protrusion part 16 are bonded together, and the bonding surface J is formed. The bonding surface J is formed at the same height position as the water stop M described later. The bonding surface J is parallel to the upper surface of the cover 3. The bonding surface J is formed over the entire left-right direction of the third flange portion 43. Although the bonding surface J is in surface contact in the present embodiment, it may be opposed to each other with a gap slightly.

The third flange portion 43 and the inner rib 53 and the outer rib 54 form a fitting recess 60. The fitting recessed portion 60 is also formed in another flange portion constituting the flange portion 33. That is, the fitting recessed portion 60 is formed over the entire circumferential direction of the flange portion 33. By fitting the fitting convex portion 15 of the outer box 5 to the fitting concave portion 60 of the inner box 6, the inner box 6 and the outer box 5 are integrated.

Furthermore, the water stop M is formed by the outer surface of the fitting convex portion 15 and the inner surface of the outer rib 54 being in contact (surface contact). The water stop M is also formed over the entire circumferential direction along the fitting part. When the fitting concave portion 60 is fitted into the fitting convex portion 15, the top end (lower end) of the outer rib 54 is separated from the outer box protrusion 16. In addition, the fitting convex portion 15 and the inner rib 53 are separated in order to ensure a fitting clearance (fitting margin), but they may be brought into contact with each other.

As shown in FIG. 2, the lid 3 is a member that covers the opening of the box body 2 in an openable and closable manner. A fitting groove 3a into which the top end of the folded-back wall portion 32 is fitted is formed on the bottom surface of the lid body 3 over the entire circumferential direction. A sealing member may be provided on at least one of the fitting groove 3a and the tip of the folded-back wall portion 32 to improve the sealing performance.

As shown in FIG. 2, the lock rods 4 are respectively arranged at the front end and the rear end of the bottom surface of the cover 3. The lock lever 4 is an operating member for locking or unlocking the lid 3 of the box body 2. Although the length of the lock lever 4 may be appropriately set, in this embodiment, it is formed over substantially the entire side in the left-right direction. The lock lever 4 is mounted on the bottom surface of the cover 3 through a hinge portion that can be rotated in the up and down direction.

Between the lock lever 4 and the folded back wall portion 32 and the flange portion 33 (the third flange portion 43, the second inclined flange portions 45, 45) is formed a finger insertion portion that becomes a clearance for putting a finger in. 70. The user puts a finger in the finger insertion portion 70, rotates the lock lever 4 upward, and disengages the engagement with the box body 2, the lock is released, and the lid 3 can be opened. Furthermore, by closing the cover 3 and rotating the lock lever 4 downward, the cover 3 can be locked. The lid 3 may be opened only on one side in the front-rear direction, or the lock levers 4 on both sides in the front-rear direction may be released to remove the entire lid 3 from the box body 2.

(Effect) According to the cold storage box 1 of the present embodiment described above, as shown in FIG. 4, since the outer side of the water stop part M is protected by the outer box protrusion 16 and the inner box protrusion 52, it is possible to prevent water from directly hitting the water stop part. M. According to this, it is possible to prevent water from penetrating into the insulating material filling space 7 of the cold storage box 1.

Furthermore, according to the present embodiment, even if water enters from the bonding surface J and the water accumulates in the space surrounded by the fitting convex portion 15, the outer box protrusion portion 16, and the inner box protrusion portion 52, it is due to the fact that the outer box protrusion portion 16 Since the drainage hole 17 is formed on the base end side of the cooling box, the water accumulated in the outer box protrusion 16 can be drained to the outside of the cold storage box 1.

Also, the outer box protrusion 16 is inclined downward toward the drain hole 17 so that the water can be drained efficiently. That is, in this embodiment, as shown in FIG. 4, the outer box protrusion part 16 inclines below from the outside toward the inside in a side view. Moreover, as shown in FIG. 3, the outer box protrusion 16 is inclined downwardly from the left and right sides toward the central portion where the drain hole 17 is formed, as viewed from the front side. According to this, the water of the outer box protrusion 16 is collected on the base end side of the outer box protrusion 16, and it is easy to flow from both sides in the left-right direction to the drain hole 17 located in the center.

In addition, when the water stopping part M comes into contact with the accumulated water, for example, the water is sucked up by the capillary phenomenon, which may reduce the water stopping function. However, in this embodiment, the top end of the outer rib 54 is separated from the outer box protrusion 16. According to this, it is possible to prevent the water accumulated in the outer box projecting portion 16 from entering the insulating material filling space 7 from the water stopping portion M due to the capillary phenomenon, so that the water stopping performance can be further improved.

Furthermore, as shown in FIG. 4, according to this embodiment, the bonding surface J formed by bonding the distal end surface 16 c of the outer box protrusion 16 and the distal end surface 52 c of the inner box protrusion 52 is parallel to the upper surface of the lid 3. According to this, since it is difficult for water to enter from the bonding surface J, the water stopping performance can be further improved.

Furthermore, although the bonding surface J formed by the outer box protrusion 16 and the inner box protrusion 52 may be arranged on the entire circumference of the box body 2, it may be arranged only on the corresponding third The form of the part of the flange part 43 (lock lever 4). Since the lock lever 4 side (the front and rear sides of the cold insulation box 1) is often opposed to the sea side when fishing, for example, it is easily exposed to seawater. However, according to this embodiment, the outer box protrusion 16 and the inner box protrusion can be used 52 suitable to prevent.

Furthermore, since the inner box projecting portion 52 is inclined downward as it goes to the outside, it is easy to drain the water on the third flange portion 43 side to the outside.

Although the embodiment of the present invention has been described above, design changes can be made as appropriate. For example, although the drainage hole 17 is provided in this embodiment, the drainage hole 17 may be omitted. In addition, in this embodiment, the drain holes 17 are arranged at two places in total of the side walls 11A and 11B, but the number or arrangement positions may be appropriately set. That is, the drain hole 17 may be arranged at a position corresponding to the side walls 11C and 11D. In addition, although the bonding surface J is preferably in surface contact with the tip surfaces 16c and 52c, it may be in a form of partial contact and may be slightly separated. In addition, although the bonding surface J is parallel to the upper surface of the lid 3, it may be parallel to other constituent members such as the bottom wall 10.

Furthermore, although in the present embodiment, the outer box protrusion 16 and the inner box protrusion 52 are arranged in the flange portion 33 at positions corresponding to the third flange portions 43, 43, and the two are attached and arranged at the same time. The bonding surface J may be a form in which the bonding surface J is arranged in another position of the flange portion 33.

In addition, although in this embodiment, the outer box 5 and the inner box 6 are fastened with screws R in plural places, the screws R may be omitted. Furthermore, although in the present embodiment, the outer box protrusion 16 is protruded outward and extended upward, while the inner box protrusion 52 is protruded outward and extended downward to adhere the two, However, as long as the two can be bonded together, other shapes are also acceptable.

1: cold box 2: Box body 3: cover body 4: lock lever 5: Outer box 6: inner box 7: Insulation material fills the space 10, 30: bottom wall 11, 11A, 11B, 11C, 11D, 31, 31A, 31B, 31C, 31D: side wall 15: Fitting convex part 16: Outer box protrusion 16a: The first upright part 16b: The second upright part 16c, 52c: top surface 17: Drain hole 18: Hub support 19: Hub hole 32: Fold back to the wall 33: Flange 41: First flange 42: second flange 43: Third flange 44: First inclined flange 45: second inclined flange 51: flange body 52: Inner box protrusion 52a: Inclined part 52b: Hanging part 53: medial rib 54: Lateral rib 55: threaded hole 60: Fitting recess 70: Finger insertion part 101: inner box 102: Mating groove 110: Outer box 111: Fitting convex part 120: Waterstop 130: Insulation material fills the space J: Fitting surface M: Waterstop R: Screw S: containment space

Fig. 1 is an overall perspective view of the cold storage box related to this embodiment. Fig. 2 is a perspective view of the cold storage box which is broken at the center in the width direction. Figure 3 is an exploded perspective view of the outer box and the inner box. Figure 4 is a cross-sectional view around the drain hole. Figure 5 is a perspective view of the front side around the drain hole. Fig. 6 is an example of a conventional cold storage box, showing a cross-sectional view of a fitting portion after the outer box and the inner box are fitted.

2: Box body

5: Outer box

6: inner box

7: Insulation material fills the space

11.11A: side wall

15: Fitting convex part

16: Outer box protrusion

16a: The first upright part

16b: The second upright part

16c, 52c: top surface

17: Drain hole

18: Hub support

19: Hub hole

32: Fold back to the wall

33: Flange

43: Third flange

51: flange body

52: Inner box protrusion

52a: Inclined part

52b: Hanging part

53: medial rib

54: Lateral rib

55: threaded hole

60: Fitting recess

J: Fitting surface

M: Waterstop

R: Screw

Claims (5)

A cold storage box, which is characterized by having: The box body is formed by fitting the outer box and the inner box; Insulating material, which is arranged between the outer box and the inner box to fill the space; A cover for opening and closing the opening of the box body; and The water stop is formed by fitting the side wall of the outer box with a flange protruding outward from the top end of the inner box, The side wall of the outer box has an outer box protrusion that protrudes further to the outside than the side wall, The flange portion of the inner box has an inner box protrusion that protrudes outward, The outer box protruding part and the inner box protruding part are attached to the outer side than the water stop part. Such as the cold storage box of claim 1, wherein a drainage hole is formed in the protrusion of the outer box. Such as the cold storage box of claim 2, wherein the protruding part of the outer box slopes downward toward the drain hole. For example, the cold insulation box of any one of claim 1 to claim 3, wherein the fitting concave portion formed by the inner rib and the outer rib of the flange portion and the fitting convex arranged on the top end of the side wall of the outer box Part is fitted to form a fitting part, and at the same time the water stop part is formed by the outer rib contacting the fitting convex part, The top end of the outer rib is separated from the protrusion of the outer box. Such as the cold storage box of any one of claim 1 to claim 4, wherein the top surface of the protrusion of the outer box and the top surface of the protrusion of the inner box are attached to form a bonding surface that is parallel to the upper surface of the cover .

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