KR20210082382A - Cold insulation box - Google Patents

Abstract

The present invention is to provide a cool box which prevents water from entering a heat insulating material filling space. The cold box includes: a box body (2) formed by fitting an outer box (5) and an inner box (6); a heat insulating material arranged in a heat insulating material filling space (7) between the outer box (5) and the inner box (6); a lid (3) which opens and closes an opening of the box body (2); and a water blocking part (M) formed by fitting a side wall (11) of the outer box (5) and a flange part (33) projecting outward from the tip part of the inner box (6). The side wall (11) of the outer box (5) has an outer box overhanging part (16) which projects outward from the side wall (11). The flange part (33) of the inner box (6) has an inner box overhanging part (52) which projects outward. The outer box overhanging part (16) and the inner box overhanging part (52) are butted outside the water blocking part (M).

Description

Insulation box {COLD INSULATION BOX}

The present invention relates to a cold storage box.

In the cold storage box, an accommodation space for accommodating accommodating goods such as fish caught together with the cold storage agent, drink or food is formed. This accommodation space is blocked from outside air, and it can hold|maintain so that accommodation objects, such as a fish, do not become warm by outside air.

For example, Patent Document 1 discloses a cold storage box having a box body configured by fitting an outer box and an inner box, a heat insulating material disposed between the outer box and the inner box, and a lid for opening and closing the opening of the box body, have.

Fig. 6 is an example of a conventional cold storage box, and is a cross-sectional view showing a fitting portion in which an outer box and an inner box are fitted. As shown in FIG. 6, the inner box 101 has the fitting recessed groove 102 which is formed over the outer periphery of the front-end|tip side and opens downward. A fitting convex portion 111 provided at the tip of the outer box 110 is fitted into the fitting concave groove 102 to form a fitting portion. Further, when the inner surface of the fitting concave groove 102 and the outer surface of the fitting convex portion 111 come into contact with each other, a water shutoff portion 120 for preventing water from entering is formed. Between the inner box 101 and the outer box 110, a heat insulating material filling space 130 in which a heat insulating material (not shown) is filled is formed.

Japanese Patent Laid-Open No. 2000-4753

Since the conventional cold storage box shown in FIG. 6 has a structure in which water easily comes into contact with the water shutoff unit 120, it is used in rain or washed with strong water pressure. There is a problem with water ingress. In addition, if water adheres to the fitting convex portion 111 , water is sucked up by the capillary phenomenon of the water shutoff portion 120 , and there is a problem that water enters the insulating material filling space 130 . Since water is easy to transfer heat, there is a problem in that when water enters the insulating material filling space 130, the thermal insulation performance is deteriorated.

This invention has been made in order to solve the said subject, and an object of this invention is to provide the cold storage box which water hardly enters into a heat insulating material filling space.

In order to achieve the above object, the cold storage box of the present invention includes a box body configured by fitting an outer box and an inner box, a heat insulating material disposed in a heat insulating material filling space between the outer box and the inner box, and an opening of the box body a cover for opening and closing, a side wall of the outer box, and a water shutoff portion formed by fitting a flange portion protruding outward from the tip of the inner box, the side wall of the outer box having an outer box projecting portion projecting outward from the side wall and the flange portion of the inner box has an inner box projecting portion protruding outward, and the outer box projecting portion and the inner box projecting portion are facing each other outside the water shutoff portion.

By doing in this way, since the outside of the water shutoff portion is protected by the outer box protrusion and the inner box protrusion, direct contact of water with the water shutoff portion can be prevented. Thereby, it can prevent that water infiltrates into the heat insulating material filling space of a cold storage box.

In addition, it is preferable that a water drain hole is formed in the protrusion of the outer box. By doing in this way, even if, for example, water enters the outer box protrusion from the butted portion, the water drawn on the outer box protrusion can be discharged to the outside of the cold storage box.

Moreover, it is preferable that the said outer box protrusion is inclined downward toward the said water drain hole. By doing in this way, the water collected on the outer box protrusion can be efficiently discharged to the outside.

In addition, the fitting concave portion composed of the inner rib and the outer rib of the flange portion and the fitting convex portion provided at the tip of the side wall of the outer box are fitted to form a fitting portion, and the outer rib and the fitting convex portion It is preferable that the water shutoff portion is formed by contacting, and the tip of the outer rib is spaced apart from the outer box projecting portion.

By doing in this way, since it is possible to prevent water from entering the water insulator filling space from the water shutoff portion due to the capillary phenomenon, it is possible to further improve the water stop performance.

In addition, it is preferable that the abutting surface formed by the front end surface of the said outer box protrusion and the front end surface of the said inner box projecting part abutting is parallel to a horizontal direction. By doing in this way, since water becomes difficult to enter from the butt|matching surface, water retention performance can be improved further.

ADVANTAGE OF THE INVENTION According to this invention, the cold storage box which water hardly enters into the heat insulating material filling space is obtained.

BRIEF DESCRIPTION OF THE DRAWINGS It is the whole perspective view of the cold storage box which concerns on this embodiment.
Fig. 2 is a perspective view of the cold storage box broken at the central portion in the width direction;
3 is an exploded perspective view of an outer box and an inner box;
4 is a cross-sectional view around the drain hole.
Fig. 5 is a perspective view of the front side around the drain hole;
Fig. 6 is an example of a conventional cold storage box, and is a cross-sectional view showing a fitting portion in which an outer box and an inner box are fitted.

EMBODIMENT OF THE INVENTION Hereinafter, the cold storage box of embodiment of this invention is demonstrated with reference to drawings. In each embodiment, the same code|symbol is attached|subjected to the same part, and the overlapping description is abbreviate|omitted. In the description, “up and down”, “left and right”, and “front and back” follow the arrows in FIG. 1 .

(cold box)

1 and 2, the cooling box 1 of the present embodiment is a rectangular parallelepiped box formed longer in the left-right direction than in the front-rear direction. The cold storage box 1 is mainly comprised by the box main body 2, the lid|cover 3, and the lock levers 4 and 4. As shown in FIG. In the inside of the cold storage box 1, the accommodation space S (refer FIG. 2) which can accommodate accommodating goods, such as a fish caught with a cooling agent, a drink, or food, is formed.

As shown in FIG. 2, the box main body 2 is equipped with the outer box 5, the inner box 6, and the heat insulating material filling space 7 which fills the heat insulating material (not shown). The heat insulating material filling space 7 is formed over the whole circumferential direction. As a heat insulating material, foamed urethane, foamed styrene, etc. can be used, for example. The cold storage box 1 has a three-layer structure of the outer box 5, the inner box 6, and a heat insulating material, and can exhibit high heat insulation performance. In addition, the cooling box 1 of this embodiment has a symmetrical structure in front-back and left-right.

(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 elongated in the left-right direction (also referred to as a width direction). The side wall 11 is raised substantially vertically from the periphery of the bottom wall 10 . The side wall 11 is referred to as the side wall 11A, the side wall 11B, the side wall 11C, and the side wall 11D, and is 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 distal end portions of the outer box 5, a portion corresponding to the sidewalls 11A, 11B is formed at a position lowered by one step compared to a portion corresponding to the sidewalls 11C, 11D. Moreover, among the front-end|tip parts of the outer box 5, the site|part corresponding to the side walls 11A, 11B is inclined downward toward the center part in the left-right direction.

As shown in FIG. 4 , a fitting convex portion 15 and an outer box projecting portion 16 are formed at the distal end of the outer box 5 over the entire periphery. The fitting convex part 15 is a protrusion provided at the front-end|tip of the side wall 11, and is made thinner than the other part of the side wall 11. As shown in FIG. The outer box projecting portion 16 is provided to protrude from the side wall 11 to the outside (the opposite side of the accommodation space S with respect to the side wall 11) and to extend upward. More specifically, the outer box projection 16 includes a first rising portion 16a that protrudes obliquely upward from the sidewall 11A, and a second rising portion 16a that rises in a vertical direction from an end of the first rising portion 16a. It is comprised by the rising part 16b.

3 and 5 , in the portion of the outer box protrusion 16 corresponding to the side walls 11A and 11B, a drain hole 17 is formed in the central portion in the left-right direction. The water drain hole 17 is formed to penetrate in the vertical direction with a predetermined width on the proximal 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 boss hole 19 are formed in the side wall 11 . The boss support portion 18 is a portion that protrudes inward from the inner surface of the side wall 11 to support the boss hole 19 . The boss hole 19 is raised from the boss support part 18, and the screw groove is formed in the inside. The boss support part 18 and the boss hole 19 are formed in the upper part of the side wall 11 in a plurality of places at predetermined intervals.

(inner box)

As shown in FIG. 3 , the inner box 6 is a resin-made bottomed cylindrical member composed of a bottom wall 30 and four side walls 31 . Since the inner box 6 is accommodated inside the outer box 5 except for the tip portion, it is formed one step smaller than the outer box 5 . The bottom wall 30 has a rectangular shape elongated in the left-right direction. The side wall 31 is raised substantially vertically from the periphery of the bottom wall 30 . The side wall 31 is referred to as a side wall 31A, a side wall 31B, a side wall 31C, and a side wall 31D, and is distinguished as necessary. The side walls 31A and 31B are opposite to each other and parallel to the left-right direction. The side walls 31C and 31D face each other and are parallel to the front-rear direction.

A folding wall portion 32 and a flange portion 33 are formed at the distal end of the inner box 6 . As shown in FIG. 2, the folding wall part 32 is folded outward from the front-end|tip of the side walls 31A, 31B, and is formed so that it may become substantially parallel to the side walls 31A, 31B.

The flange part 33 is a site|part protruding outward from the side walls 31C and 31D and the folding wall part 32, as shown in FIG.2 and FIG.3, The 1st flange part 41, the 2nd flange part (42), the 3rd flange part 43, the 1st inclined flange part 44, and the 2nd inclined flange part 45 are comprised. Since the inner box 6 is also formed front-to-back and left-right symmetry, the front right corner part is illustrated and demonstrated here.

The 1st flange part 41 protrudes toward the outer side (right side) from the side wall 31D. The 1st flange part 41 is formed over the whole front-back direction of the side wall 31D. The second flange portion 42 protrudes outward (front side) on the right end side of the folding wall portion 32 . The second flange portion 42 is formed at a position lower than the first flange portion 41 by one step. On the second flange portion 42 , a lock lever 4 is disposed oppositely.

The third flange portion 43 protrudes outward (front side) from the lower end of the folding wall portion 32 . The third flange portion 43 is inclined downward from the second inclined flange portion 45 toward the center portion.

The first inclined flange portion 44 protrudes outward (front side) from the right end of the folding wall portion 32, and is connected with the first flange portion 41 and the second flange portion 42 inclined. . The 2nd inclined flange part 45 protrudes outward (front side) from the folding wall part 32, The 2nd flange part 42 and the 3rd flange part 43 are inclined, and are connected.

As shown in Fig. 4, on the lower 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 3rd flange part 43 is illustrated and the structure of a fitting part is demonstrated. The third flange portion 43 is formed of a flange body 51 and an inner box projecting portion 52 . The flange body 51 protrudes outward (front side) from the lower end of the folding wall part 32 . An inner rib 53 extending downward from the lower surface is formed on the tip side of the flange body 51 . A screw hole 55 is formed in the central portion of the flange body 51 in the left-right direction. The screw hole 55 communicates with the boss hole 19 . By screwing the screw R from the screw hole 55 to the boss hole 19, the outer box 5 and the inner box 6 can be firmly fastened.

The inner box protrusion 52 protrudes further outward (front side) from the tip of the flange body 51 . The inner box projecting portion 52 is formed between the second inclined flange portions 45 and 45 opposite to the left and right (see Fig. 3). The inner box protrusion 52 is composed of an inclined portion 52a that inclines downward toward the outside (front side), and a drooping portion 52b that descends from the tip of the inclined portion 52a. An outer rib 54 extending downward from the lower surface is formed on the inclined portion 52a of the inner box projecting portion 52 .

The distal end face 52c of the inner box protrusion 52 and the distal end face 16c of the outer box protrusion 16 are abutted to form an abutting face J. The abutting surface J is formed at the same height position as the water shutoff part M mentioned later. The butt|matching surface J is parallel to a horizontal direction. The butt|matching surface J is formed over the whole left-right direction of the 3rd flange part 43. Although the butt|matching surface J is surface-contacting in this embodiment, it may oppose with a space|interval slightly.

A fitting recess 60 is formed by the third flange portion 43 , the inner rib 53 , and the outer rib 54 . The said fitting recessed part 60 is also formed in the other flange part which comprises the flange part 33. As shown in FIG. 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 recessed portion 60 of the inner box 6, the inner box 6 and the outer box 5 are integrated.

Further, when the outer surface of the fitting convex portion 15 and the inner surface of the outer rib 54 contact (surface contact), the water shutoff portion M is formed. The water shutoff portion M is also formed along the fitting portion over the entire circumferential direction. When the fitting concave portion 60 and the fitting convex portion 15 are fitted, the tip (lower end) of the outer rib 54 is spaced apart from the outer box projecting portion 16 . In addition, although the fitting convex part 15 and the inner rib 53 are spaced apart in order to ensure a fitting clearance part (fitting margin), you may make it contact.

As shown in FIG. 2 , the lid 3 is a member that covers the opening of the box body 2 so that opening and closing is possible. On the lower surface of the lid 3, a fitting groove 3a into which the tip of the folding wall portion 32 is fitted is formed over the entire circumferential direction. The sealing property may be improved by providing a sealing member in at least one of the front-end|tip of the fitting groove 3a and the folding wall part 32. As shown in FIG.

As shown in FIG. 2 , the lock lever 4 is provided at the front end and the rear end of the lower surface of the lid 3 , respectively. The lock lever 4 is an operation member for locking or unlocking the lid 3 with respect to the box body 2 . The length of the lock lever 4 may be appropriately set, but in the present embodiment, it is formed over substantially the entire left-right direction. The lock lever 4 is provided on the lower surface of the lid 3 so as to be rotatable in the vertical direction via a hinge portion.

A finger insertion portion serving as a clearance for inserting a finger between the lock lever 4, the folding wall portion 32, and the flange portion 33 (third flange portion 43, second inclined flange portion 45, 45) (70) is formed. The user inserts a finger into the finger insertion section 70 and rotates the lock lever 4 upward to release the engagement with the box body 2 to release the lock, thereby opening the lid 3 . In addition, the lid 3 can be locked by closing the lid 3 and rotating the lock lever 4 downward. The lid 3 may be openable only on one side in the front-rear direction, or the lock levers 4 on both sides of the front-rear direction may be released to remove the entire lid 3 from the box body 2 .

(action effect)

According to the cold storage box 1 of the present embodiment described above, as shown in FIG. 4 , the outside of the water shutoff portion M is protected by the outer box projection 16 and the inner box projection 52 , It is possible to prevent water from coming into direct contact with the part (M). Thereby, it can prevent that water infiltrates into the heat insulating material filling space 7 of the cold storage box 1 .

Moreover, according to this embodiment, for example, water infiltrates from the butt|matching surface J, and water accumulates in the space enclosed by the fitting convex part 15, the outer box protrusion part 16, and the inner box protrusion part 52. Even if it does, since the water drain hole 17 is formed in the base end side of the outer box protrusion part 16, the water drawn by the outer box protrusion part 16 can be discharged|emitted to the outside of the cold storage box 1 .

In addition, the outer box protrusion 16 is inclined downward toward the water drain hole 17 so that water can be discharged efficiently. That is, in this embodiment, as shown in FIG. 4, the outer box protrusion part 16 inclines downward as it goes from the outside to the inside in a side view. Further, as shown in Fig. 3, the outer box projecting portion 16 is inclined downward from the left and right both sides toward the central portion in which the water drain holes 17 are formed, as viewed from the front side. As a result, the water of the outer box projecting portion 16 is concentrated on the proximal end side of the outer box projecting portion 16 and easily flows from both sides of the outer box projecting portion 16 to the water draining hole 17 in the central portion.

In addition, when the water shutoff part M is in contact with stored water, for example, it sucks up water by a capillary phenomenon, and there is a possibility that the water shutoff function may be deteriorated. However, in this embodiment, the tip of the outer rib 54 is spaced apart from the outer box protrusion 16 . By doing in this way, it is possible to prevent the water stored in the outer box protrusion 16 from penetrating into the insulating material filling space 7 from the water shutoff portion M due to the capillary phenomenon, so that the water stop performance can be further improved.

Further, as shown in FIG. 4 , according to the present embodiment, a butt surface J formed by abutting the front end face 16c of the outer box protrusion 16 and the end face 52c of the inner box protrusion 52 to each other. ) is parallel to the horizontal direction. Since it becomes difficult for water to enter from the butt|matching surface J by doing in this way, water-stop performance can be further improved.

In addition, although the butt|matching surface J comprised from the outer box protrusion part 16 and the inner box protrusion part 52 may be provided in the whole circumferential direction of the box main body 2, the 3rd flange part 43 like this embodiment ) (the lock lever 4) may be provided only in a portion corresponding to it. The lock lever 4 side (front and back sides of the cold storage box 1) often faces the sea side when fishing, for example, so it is easy to receive seawater. However, according to this embodiment, the outer box protrusion (16) and the inner box protrusion (52) can be properly prevented.

Moreover, since the inner box protrusion part 52 inclines downward as it goes outward, it becomes easy to discharge the water on the 3rd flange part 43 side to the outside.

As mentioned above, although embodiment of this invention was described, a design change is possible suitably. For example, although the water drain hole 17 is provided in this embodiment, the water drain hole 17 may be abbreviate|omitted. In addition, in this embodiment, although the water drain hole 17 was provided in two places in total of side wall 11A, 11B, what is necessary is just to set a number and arrangement position suitably. That is, the water drain hole 17 may be provided at a position corresponding to the sidewalls 11C and 11D. Moreover, as for the butt|matching surface J, although it is preferable that the front-end surfaces 16c and 52c surface-contact, the form which a part contacts may be sufficient and it may be spaced apart slightly. Moreover, although it is preferable that the butt|matching surface J is parallel to a horizontal direction, it may be parallel to another direction.

Moreover, in this embodiment, while providing the outer box protrusion part 16 and the inner box protrusion part 52 at the position corresponding to the 3rd flange parts 43 and 43 among the flange parts 33, both are butt|matched. Although the surface J was provided, it is good also as a form which provides the butt|matching surface J in the other position of the flange part 33. As shown in FIG.

In addition, in this embodiment, although the outer box 5 and the inner box 6 are fastened with the screw R in several places, you may abbreviate|omit the screw R. Moreover, in this embodiment, the outer box protrusion 16 is extended upward while projecting outward, and the inner box protrusion 52 is extended downward while protruding outward, and both are facing each other. A different shape may be sufficient as it butts.

1: cold box
2: box body
3: cover
4: lock lever
5: Outer box
6: Inner box
7: Insulation filling space
15: fitting convex portion
16: outer box protrusion
17: drain hole
33: flange portion
52: inner box protrusion
53: inner rib
54: outer rib
60: fit recessed portion
70: finger insertion part
J: Face to face
M: Exponential part

Claims (5)

a box body comprising an outer box and an inner box fitted together;
a thermal insulation material disposed in a thermal insulation material filling space between the outer box and the inner box;
a cover for opening and closing the opening of the box body;
It has a water shutoff portion formed by fitting a side wall of the outer box and a flange portion protruding outward from the front end of the inner box,
The side wall of the outer box has an outer box protrusion that protrudes outward than the side wall,
The flange portion of the inner box has an inner box protrusion protruding outward,
The cooling box according to claim 1, wherein the outer box projecting portion and the inner box projecting portion are facing each other outside the water shutoff portion. The cooling box according to claim 1, wherein a water drain hole is formed in the protrusion of the outer box. The cooling box according to claim 2, wherein the outer box protrusion is inclined downward toward the water drain hole. 4. The fitting portion according to any one of claims 1 to 3, wherein a fitting concave portion composed of an inner rib and an outer rib of the flange portion and a fitting convex portion provided at the tip of the side wall of the outer box are fitted to form the fitting portion Together, the water shutoff portion is formed by contacting the outer rib and the fitting convex portion,
The front end of the outer rib is spaced apart from the outer box protrusion. The cooling box according to any one of claims 1 to 4, wherein the abutting surface formed by abutting the front end surface of the outer box protrusion and the front end surface of the inner box protrusion is parallel to the horizontal direction.

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