CN113023118A

CN113023118A - Cold insulation box

Info

Publication number: CN113023118A
Application number: CN202011122943.3A
Authority: CN
Inventors: 平安洋一郎; 山崎光洋; 泊佑树
Original assignee: Globeride Inc; Nissen Chemitec Corp
Current assignee: Globeride Inc; Nissen Chemitec Corp
Priority date: 2019-12-25
Filing date: 2020-10-20
Publication date: 2021-06-25
Anticipated expiration: 2040-10-20
Also published as: KR20210082382A; TWI740682B; JP2021102464A; TW202124230A; CN113023118B; JP7249934B2

Abstract

The invention provides a cold insulation box which is not easy to feed water into a heat insulation material filling space. Specifically, the cold insulation box includes: a box body (2) formed by embedding an outer box (5) and an inner box (6); a heat insulating material disposed in a heat insulating material filling space (7) between the outer box (5) and the inner box (6); a cover body (3) for opening and closing the opening of the box body (2); and a water stop part M formed by fitting a side wall (11) of the outer box (5) with a flange part (33) extending outward from the top end part of the inner box (6), characterized in that the side wall (11) of the outer box (5) has an outer box extending part (16) extending outward than the side wall (11), the flange part (33) of the inner box (6) has an inner box extending part (52) extending outward, and the outer box extending part (16) and the inner box extending part (52) are bonded to each other further outward than the water stop part M.

Description

Cold insulation box

Technical Field

The present invention relates to a cold insulation box.

Background

In the cold insulation box, a storage space is formed for storing the fished fish, beverage, food, and other stored goods together with the cold insulation agent. The accommodating space is isolated from the outside air, so that the accommodated objects such as fish can be kept from being heated by the outside air.

For example, patent document 1 discloses a cooling box including: a box body formed by embedding the outer box and the inner box; a heat insulating material disposed between the outer case and the inner case; and a cover body for opening and closing the opening of the box body.

Fig. 6 is a cross-sectional view showing a fitting portion of the conventional cooling box after the outer box and the inner box are fitted to each other. As shown in fig. 6, the inner case 101 has a fitting recess 102, and the fitting recess 102 is formed in the outer peripheral edge of the tip end side and opens downward. A fitting protrusion 111 provided at the top end of the outer box 110 is fitted into the fitting groove 102 to form a fitting portion. Further, a water stop portion 120 that prevents water from entering is formed by the inner surface of the fitting recess 102 contacting the outer surface of the fitting projection 111. An insulating material filling space 130 filled with an insulating material (not shown) is formed between the inner box 101 and the outer box 110.

Patent document

Patent document 1: japanese laid-open patent publication No. 2000-4753

Disclosure of Invention

Since the conventional cold box shown in fig. 6 has a structure in which water easily hits the water stop portion 120, there is a problem that water enters the heat insulating material filling space 130 from the water stop portion 120 when the cold box is used in heavy rain or cleaned by strong water pressure. Further, if water adheres to the fitting projection 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 filling space 130. Since water easily conducts heat, there is a problem that when water enters the insulating material filling space 130, the insulating performance is lowered.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a cooling box in which water is not easily introduced into a space filled with an insulating material.

In order to achieve the above object, a cold insulation box according to the present invention includes: a box body formed by embedding the outer box and the inner box; a heat insulating material disposed in a heat insulating material filling space between the outer box and the inner box; a lid body that opens and closes an opening of the box body; and a water stop part formed by fitting a side wall of the outer box with a flange part extending outward from a top end part of the inner box, wherein the side wall of the outer box has an outer box extending part extending outward more than the side wall, the flange part of the inner box has an inner box extending part extending outward, and the outer box extending part and the inner box extending part are bonded to each other further outward than the water stop part.

Thus, the outer side of the water stop part is protected by the outer box extending part and the inner box extending part, so that water can be prevented from directly contacting the water stop part. This prevents water from entering the heat insulating material filling space of the cold-storage box.

Preferably, a drain hole is formed in the outer box extension portion. Thus, even if water enters the outer box extension from the bonded portion, the water accumulated in the outer box extension can be discharged to the outside of the cooling box.

Preferably, the outer box extension portion is inclined downward toward the drain hole. This enables water accumulated in the outer tank extension to be efficiently discharged to the outside.

Preferably, a fitting concave portion formed by an inner edge and an outer edge of the flange portion is fitted to a fitting convex portion provided at a distal end of a side wall of the outer box to form a fitting portion, and the outer edge is brought into contact with the fitting convex portion to form the water stop portion, and the distal end of the outer edge is spaced apart from the outer box extending portion.

This prevents water from entering the heat insulating material-filled space from the water-stopping portion due to a capillary phenomenon, and therefore, the water-stopping performance can be further improved.

Preferably, a joint surface formed by joining the distal end surface of the outer box extension and the distal end surface of the inner box extension is parallel to the upper surface of the lid body. This makes it difficult for water to enter from the bonding surface, and therefore, the water stopping performance can be further improved.

According to the present invention, a cold insulation box in which water is not easily supplied to a space filled with a heat insulating material can be obtained.

Drawings

Fig. 1 is an overall perspective view of the cooling box according to the present embodiment.

Fig. 2 is a perspective view of the heat retention box cut at the center in the width direction.

Fig. 3 is an exploded perspective view of the outer case and the inner case.

Fig. 4 is a sectional view around the drain hole.

Fig. 5 is a perspective view of the front side around the drain hole.

Fig. 6 is a cross-sectional view showing a fitting portion of the conventional cooling box after the outer box and the inner box are fitted to each other.

Description of the symbols

1-a cold insulation box; 2-the box body; 3-a cover body; 4-a locking bar; 5-outer box; 6-inner box; 7-thermal insulation material filling space; 15-a fitting projection; 16-outer box extension; 17-a drain hole; 33-flange portion; 52-inner box extension; 53-inner edge; 54-outer lateral edge; 60-a mating recess; 70-finger insertion; j-bonding surface; m-water stop part.

Detailed Description

Next, a cooling box according to an embodiment of the present invention will be described with reference to the drawings. In each embodiment, the same portions are denoted by the same reference numerals, and redundant description thereof is omitted. The "up and down", "left and right", and "front and back" in the description follow the arrows in fig. 1.

(Cold insulation box)

As shown in fig. 1 and 2, the cooling box 1 of the present embodiment is a box formed in a rectangular parallelepiped shape longer in the left-right direction than in the front-rear direction. The cold insulation box 1 mainly comprises a box body 2, a cover body 3 and lock rods 4 and 4. Inside the cold storage box 1, a storage space S (see fig. 2) is formed in which stored items such as fished fish, beverages, and foods can be stored together with the cold insulating agent.

As shown in fig. 2, the box main body 2 includes an outer box 5, an inner box 6, and a heat insulating material filling space 7 filled with a heat insulating material (not shown). A thermal insulation material-filled space 7 is formed in the entire circumferential direction. Examples of the heat insulating material include polyurethane foam and polystyrene foam. The cooling box 1 has a three-layer structure of the outer box 5, the inner box 6, and a heat insulating material, and thus exhibits high heat insulating performance. The cooling box 1 of the present embodiment has a front-rear and left-right symmetrical structure.

(outer case)

As shown in fig. 3, the outer box 5 is a resin bottomed cylindrical member composed of a bottom wall 10 and 4 side walls 11. The bottom wall 10 is a rectangle elongated in the left-right direction (also referred to as the width direction). The side wall 11 rises substantially vertically from the peripheral edge of the bottom wall 10. The side walls 11 may be referred to as side walls 11A, 11B, 11C, 11D for distinction as needed. The side walls 11A, 11B are opposed to each other and parallel to the left-right direction. The side walls 11C, 11D are opposed to each other and parallel to the front-rear direction.

Of the front end portion of the outer box 5, portions corresponding to the side walls 11A and 11B are formed at a lower level than portions corresponding to the side walls 11C and 11D. Further, of the distal end portion of the outer box 5, portions corresponding to the side walls 11A, 11B are inclined downward toward the center in the left-right direction.

As shown in fig. 4, a fitting convex portion 15 and a case extending portion 16 are formed on the entire circumference of the distal end portion of the case 5. The fitting protrusion 15 is a protrusion provided at the tip end of the side wall 11, and is thinner than the other portions of the side wall 11. The outer box extending portion 16 extends upward while extending outward from the side wall 11 (opposite to the side wall 11 with respect to the housing space S). More specifically, the outer box extending portion 16 includes a 1 st rising portion 16a extending obliquely upward from the side wall 11A, and a 2 nd rising portion 16b rising vertically from an end portion of the 1 st rising portion 16 a.

As shown in fig. 3 and 5, a drain hole 17 is formed in a central portion in the left-right direction in a portion of the outer case extension 16 corresponding to the side walls 11A, 11B. The drain hole 17 is formed to penetrate in the vertical direction with a predetermined width at the root end side of the 1 st rising portion 16a of the outer case extension portion 16.

As shown in fig. 4, boss support portions 18 and boss holes 19 are formed in the side wall 11. The boss supporting portion 18 is a portion protruding inward from the inner surface of the side wall 11 so as to support the boss hole 19. The boss hole 19 rises from the boss supporting portion 18, and a thread groove is formed therein. Boss support portions 18 and boss holes 19 are formed at a plurality of locations at predetermined intervals in the upper portion of the side wall 11.

(inner box)

As shown in fig. 3, the inner box 6 is a resin bottomed cylindrical member composed of a bottom wall 30 and 4 side walls 31. The inner box 6 is housed inside the outer box 5 except for the tip end portion, and is formed to be one smaller than the outer box 5. The bottom wall 30 is rectangular long in the left-right direction. The side wall 31 rises substantially vertically from the peripheral edge of the bottom wall 30. The side walls 31 may be referred to as side walls 31A, 31B, 31C, 31D for distinction as desired. The side walls 31A, 31B are opposed to each other and parallel to the left-right direction. The side walls 31C, 31D are opposed to each other and parallel to the front-rear direction.

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

As shown in fig. 2 and 3, the flange portion 33 is a portion extending outward from the side walls 31C and 31D and the folded wall portion 32, and is composed of a 1 st flange portion 41, a 2 nd flange portion 42, a 3 rd flange portion 43, a 1 st inclined flange portion 44, and a 2 nd inclined flange portion 45. Since the inner box 6 is also symmetrical in the front-rear direction and the left-right direction, the front and right corners will be exemplified for the description.

The 1 st flange 41 projects outward (rightward) from the side wall 31D. The 1 st flange portion 41 is formed on the entire front-rear direction of the side wall 31D. The 2 nd flange portion 42 projects outward (forward) on the right end side of the folded-back wall portion 32. The 2 nd flange portion 42 is formed at a position one step lower than the 1 st flange portion 41. Lock lever 4 is disposed on second flange 42 so as to face thereto.

The 3 rd flange portion 43 projects outward (forward) from the lower end of the folded-back wall portion 32. The 3 rd flange part 43 is inclined downward from the 2 nd inclined flange part 45 toward the central part.

The 1 st inclined flange portion 44 projects outward (forward) from the right end of the folded wall portion 32, and connects the 1 st flange portion 41 and the 2 nd flange portion 42 obliquely. The 2 nd inclined flange portion 45 projects outward (forward) from the folded-back wall portion 32, and connects the 2 nd flange portion 42 and the 3 rd flange portion 43 obliquely.

As shown in fig. 4, a fitting recess 60 into which the fitting protrusion 15 of the outer box 5 is fitted is formed on the entire circumferential direction of the lower surface of the flange portion 33. Here, the structure of the fitting portion will be described by exemplifying the 3 rd flange portion 43. The 3 rd flange 43 is formed by a flange body 51 and an inner case extension 52. The flange body 51 projects outward (forward) from the lower end of the folded wall portion 32. An inner rib 53 extending downward from the lower surface is formed on the tip end side of the flange main body 51. A screw hole 55 is formed in the flange body 51 at the center in the left-right direction. The screw hole 55 communicates with the boss hole 19. By screwing the screw R into the boss hole 19 from the screw hole 55, the outer case 5 and the inner case 6 can be firmly fastened.

The inner case extension portion 52 extends further outward (forward) from the tip of the flange body 51. The inner case extension portion 52 is formed between the 2 nd inclined

flange portions

45, 45 opposed to each other in the left-right direction (see fig. 3). The inner box extension portion 52 includes an inclined portion 52a inclined downward as it goes outward (forward), and a hanging portion 52b hanging down from the top end of the inclined portion 52 a. An outer side edge 54 extending downward from the lower surface is formed on the inclined portion 52a of the inner case extension portion 52.

The front end surface 52c of the inner case extension 52 is bonded to the front end surface 16c of the outer case extension 16 to form a bonding surface J. The bonding surface J is formed at the same height as the water stop portion M described later. The bonding surface J is parallel to the upper surface of the lid 3. A contact surface J is formed on the entire 3 rd flange portion 43 in the left-right direction. In the present embodiment, the bonding surfaces J are in surface contact with each other, but may be opposed to each other with a slight gap therebetween.

The fitting recess 60 is formed by the 3 rd flange 43, the inner rib 53, and the outer rib 54. The fitting recess 60 is also formed in the other flange portion constituting the flange portion 33. That is, the fitting recess 60 is formed in the entire circumferential direction of the flange portion 33. The inner box 6 and the outer box 5 can be integrated by fitting the fitting convex portion 15 of the outer box 5 into the fitting concave portion 60 of the inner box 6.

The outer surface of the fitting convex portion 15 is in contact with (surface-contacted with) the inner surface of the outer edge 54, thereby forming the water stop portion M. The water stop portion M is also formed along the fitting portion as a whole in the circumferential direction. When the fitting concave portion 60 is fitted to the fitting convex portion 15, the tip end (lower end) of the outer rib 54 is spaced apart from the outer box extending portion 16. In addition, in order to secure a fitting margin (fitting margin), the fitting convex portion 15 is separated from the inner edge 53, but may be brought into contact therewith.

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

As shown in fig. 2, lock levers 4 are provided at the front end and the rear end of the lower surface of the lid body 3, respectively. The lock lever 4 is an operation member for locking or unlocking the lid 3 to or from the box body 2. Although the length of the lock lever 4 may be set as appropriate, it is formed substantially entirely in the left-right direction in the present embodiment. The lock lever 4 is attached to the lower surface of the lid 3 via a hinge portion so as to be rotatable in the vertical direction.

A finger insertion portion 70, which is a gap for inserting a finger, is formed between the lock lever 4, the folded-back wall portion 32, and the flange portion 33 (the 3 rd flange portion 43, the 2 nd inclined flange portions 45, 45). When a finger is inserted into the finger insertion portion 70, the lock lever 4 is rotated upward, and the user releases the engagement with the box body 2 to unlock the lid 3. Further, the lid 3 is locked by closing the lid 3 and rotating the lock lever 4 downward. 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 main body 2.

(Effect)

According to the cooling box 1 of the present embodiment described above, as shown in fig. 4, the outer side of the water stop portion M is protected by the outer box extension portion 16 and the inner box extension portion 52, so that water can be prevented from directly hitting the water stop portion M. This prevents water from entering the heat insulating material-filled space 7 of the cold-insulating box 1.

Further, according to the present embodiment, even if water enters from the bonding surface J and accumulates in the space surrounded by the fitting convex portion 15, the outer box extending portion 16, and the inner box extending portion 52, the water drain hole 17 is formed on the root end side of the outer box extending portion 16, and therefore, the water accumulating in the outer box extending portion 16 can be drained to the outside of the cooling box 1.

Further, the outer case extension 16 is inclined downward toward the drain hole 17 to efficiently drain water. That is, in the present embodiment, as shown in fig. 4, the outer box extending portion 16 is inclined downward from the outside toward the inside in a side view. As shown in fig. 3, the outer box extension portion 16 is inclined downward from both the left and right sides toward the center portion where the drain hole 17 is formed, as viewed from the front side. Thus, the water in the outer case extension 16 is collected at the root end side of the outer case extension 16, and flows easily from both sides in the left-right direction to the drain hole 17 in the center.

Further, for example, when the water stopping portion M comes into contact with accumulated water, water may be sucked up by a capillary phenomenon, and the water stopping function may be deteriorated. However, in the present embodiment, the distal end of the outer rib 54 is spaced apart from the outer box extension 16. This prevents the water accumulated in the outer tank extension 16 from entering the insulation material-filled space 7 from the water stop portion M due to a pipe-pipe phenomenon, and therefore, the water stop performance can be further improved.

As shown in fig. 4, according to the present embodiment, the joint surface J formed by joining the front end surface 16c of the outer box extension 16 and the front end surface 52c of the inner box extension 52 is parallel to the upper surface of the lid 3. This makes it difficult for water to enter from the joint surface J, and therefore, the water stopping performance can be further improved.

Further, the joint surface J formed by the outer box extension 16 and the inner box extension 52 may be provided on the entire circumferential direction of the box main body 2, but may be provided only at a portion corresponding to the 3 rd flange portion 43 (lock lever 4) as in the present embodiment. The lock lever 4 side (front and rear sides of the refrigerator 1) is often exposed to sea water when fishing, for example, and therefore is susceptible to sea water, but according to the present embodiment, it can be appropriately prevented by the outer case extension portion 16 and the inner case extension portion 52.

Further, since the inner case extension portion 52 is inclined downward as it goes outward, it is convenient to discharge the water on the 3 rd flange portion 43 side to the outside.

Although the embodiments of the present invention have been described above, design changes may be appropriately made. For example, although the drain hole 17 is provided in the present embodiment, the drain hole 17 may be omitted. In the present embodiment, the drain holes 17 are provided at two positions in total of the side walls 11A and 11B, but the number and arrangement position may be set as appropriate. That is, the drain holes 17 may be provided at positions corresponding to the side walls 11C and 11D. The bonding surface J preferably comes into surface contact with the distal end surfaces 16c and 52c, but may be in a form of partial contact, or may be slightly separated. The bonding surface J is parallel to the upper surface of the lid 3, but may be parallel to another component, for example, the bottom wall 10.

In the present embodiment, the joint surface J is provided on the flange portion 33 at a position corresponding to the 3

rd flange portions

43 and 43, by providing the outer case extension portion 16 and the inner case extension portion 52 and joining them together, but the joint surface J may be provided at another position of the flange portion 33.

In the present embodiment, the outer box 5 and the inner box 6 are fastened by the screws R at a plurality of locations, but the screws R may be omitted. In the present embodiment, the outer box extending portion 16 is extended outward and extended upward, and the inner box extending portion 52 is extended outward and extended downward, so that they are bonded to each other.

Claims

1. A cold-keeping box having:

a box body formed by embedding the outer box and the inner box;

a heat insulating material disposed in a heat insulating material filling space between the outer box and the inner box;

a lid body that opens and closes an opening of the box body;

and a water stop part formed by fitting a flange part extending outward from the top end part of the inner box into a side wall of the outer box,

the side wall of the outer box is provided with an outer box extending part which extends outwards more than the side wall,

the flange portion of the inner box has an inner box projecting portion projecting outward,

the outer box extending part and the inner box extending part are attached to the outer side of the water stop part.

2. A refrigerator according to claim 1, wherein a drain hole is formed in the outer box extension.

3. A refrigerator according to claim 2, wherein the outer box extension is inclined downward toward the drain hole.

4. A cold-keeping box according to any one of claims 1 to 3,

a fitting concave portion formed by an inner edge and an outer edge of the flange portion is fitted to a fitting convex portion provided at a top end of a side wall of the outer box to form a fitting portion, and the outer edge is brought into contact with the fitting convex portion to form the water stop portion,

the top end of the outer side edge is separated from the outer box extending part.

5. A refrigerator according to any one of claims 1 to 4, wherein a joint surface formed by joining the top end surface of the outer box extension and the top end surface of the inner box extension is parallel to the upper surface of the lid body.