JP3333917B2 - Cooling container and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a container body having a side wall and a bottom wall of a heat insulating structure, and a drainage device provided at or near the bottom of the container body. And a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, in this type of cold storage container, a container body having side walls and a bottom wall is formed of, for example, a foamed resin to form a heat insulating structure, and a container such as fresh fish is stored in the container body together with ice. A lid plate is also provided to keep fresh fish cool for a long time.

[0003] By the way, ice filled with fresh fish melts with the passage of time, and the fresh fish is immersed in the water in which the ice is melted.
For this reason, for example, a drainage device including a drainage hole vertically penetrating the bottom wall is provided, and water collected in the container body is drained through the drainage hole.

However, due to space limitations, the container bodies accommodating fresh fish are often used in a plurality of stacked layers. As described above, a vertical drain hole is provided in the bottom wall of each container body. When stacked, the drain holes of the container body located at the top will be closed by the lid plate of the container body located at the bottom, and it has been necessary to provide drainage guide grooves and gaps on the upper surface of the lid plate, When a plurality of layers are stacked without providing the lid plate, water drained from the container body located at the upper portion flows into the container body located at the lower portion, and containers other than the container body stacked at the uppermost portion The fresh fish stored in the main body cannot be kept cool in a good condition.

In order to solve such a problem, a horizontal drain hole is provided in a side wall of the container body, and FIG.
6 , the side wall A and the bottom wall B of the container body C
And a drain hole E formed at the same time as the container body C is formed,
When the container body C is used in a stacked state, the water drained from the drain hole E of the container body C located at the top is
It travels along the side wall of the lower container main body C and merges with the water generated in the container main body C , and sequentially moves toward the lower container main body C.
It flows and drains.

[0006]

However, in the conventional cold storage container constructed as described above, water is drained from the container body C to the lower side and to the side through the drain hole E. The container is cooled by primary cooling by heat conduction in direct contact with ice and secondary cooling by cooling air cooled by ice in the container body C. However, there was a problem that the cooling function was greatly reduced. In other words, the drainage hole E provided to prevent the container from being immersed in water is located at the lowermost portion of the container main body C and opens entirely toward the outside of the container main body C, so that the molten water is melted. In addition to draining water to the outside, the air cooled by ice and having a higher specific gravity is discharged to the outside from the bottom of the container body C before exerting the cooling effect. There was a defect of causing a so-called convection phenomenon in which warm outside air was successively drawn into the container body C from the gap between the upper part C and the cover plate D. As a result, not only does the insulated product have insufficient cooling, but also the ice melts quickly due to convection inside and outside the container body C, increasing the consumption of ice.
In addition, there was a problem that the cooling effect of ice could not be maintained for a long time,
In addition, there is also a problem that fresh fish, which is an object to be stored, is dried or oxidized due to the convection phenomenon, and a smell of the fresh fish leaks out of the container body C.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a main object of the present invention is to provide a cold storage container capable of preventing cold air from flowing out while draining water from the container body. Another object of the present invention is to provide a manufacturing method that can easily form the cold storage container.

[0008]

In order to achieve the above object, according to the present invention, there is provided a heat insulating material in which a side wall and a bottom wall are integrally formed.
A container body of the structure, and a cold container provided with a drain device and provided in the bottom or near the bottom of the vessel the body, the drainage device, the drainage inlet mouth that opens to the inside of the container the body,
A drainage exit opening to the outside, opening out drainage with these drainage inlet mouth
It consists of a water guiding hole connecting the bets, the water guide hole, the drain entry
It was equipped with a liquid seal portion for the liquid seal and the port output and drainage mouth.

Preferably, the lower end height H2 of the drain outlet 4 is higher than the upper end height H1 of the drain inlet 3.

Further, but it may also be the lower end height of the drainage outlet 4 and H2 and the upper end height H1 of the drainage inlet 3 at the same height.

Further , the lower end height H2 of the drain outlet 4 is made lower than the upper end height H1 of the drain inlet 3, and the difference between the lower end height H2 and the upper end height H1 is determined by the drain outlet 4. May be less than or equal to the water head pressure height H3 generated by the surface tension on the lower end side of the head.

Further, the lower end height H2 of the drainage outlet 4 is made lower than the upper end side height H1 of the drainage inlet 3, and a predetermined length extending horizontally at least at the inlet side of the water introduction hole 5 continuous with the drainage inlet 3. A water head that is provided with an upper inner surface 7 having a length and that generates a height difference between a lower end side height H2 of the drain outlet 4 and an upper end side height H1 of the drain outlet 3 due to surface tension at the lower end side of the drain outlet 4. The pressure height H3 and the upper inner surface 7
The height may be equal to or less than the total height with the water film thickness due to the surface tension in the above.

Thus, the side wall 11 and the bottom wall 1 of the heat insulating structure
2, a drain inlet 3 opening inward at or near the bottom of the container body 1, a drain outlet 4 opening outward, and a water introduction hole 5 connecting these drain inlets 3 and drain outlet 4. and a drainage device comprising a, the when the the water guide hole 5 the drainage inlet 3 to the drainage outlet 4 to produce a cold container and a liquid seal portion 6 for the liquid seal, forming the container main body 1 Male mold 101 and female mold 10
A molding piece 1 for molding a drain inlet 3, a drain outlet 4, and a water introduction hole 5 of the drainage device on at least one mold back surface of the mold 2;
13 or 114, and when a molding material is supplied to a molding space between the male mold 101 and the female mold 102 to mold the container body 1, the molding piece 113 or 114 is provided.
Thus, the drainage device is formed at the same time.

On the back of the male mold 101, a first molding piece 11 for molding the drainage inlet 3 and the inlet side of the water introduction hole 5 is formed.
3 and a drain outlet 4 is provided on the back of the female mold 102.
And a second molding piece 114 for molding the outlet side of the water introduction hole 5 is provided, and a molding material is supplied to a molding space between the male mold 101 and the female mold 102 to mold the container body 1. At this time, it is preferable that the first and second molding pieces 113 and 114 simultaneously form the drainage device including the drainage inlet 3, the drainage outlet 4, and the water introduction hole 5.

Further, a container body 1 having a side wall 11 and a bottom wall 12 of a heat insulating structure, a drain inlet 3 opening inward at or near the bottom of the container body 1, a drain outlet 4 opening outward, and A cold storage container including a drainage device including a water guide hole 5 connecting the drainage inlet 3 and the drainage outlet 4, and a liquid seal portion 6 for liquid sealing the drainage inlet 3 and the drainage outlet 4 in the water guide hole 5. When manufacturing the container body 1, the molded body 8 of the drainage device is provided, and at the time of molding the container main body 1, the fitting hole 81 of the molded body 8 is molded at the bottom of the container main body 1 to form Thereafter, the molded body 8 may be fitted into the fitting hole 81 and connected thereto .

A container body 1 having a side wall 11 and a bottom wall 12 of a heat insulating structure, a drain inlet 3 opening inward near the bottom or lower portion of the container body 1, a drain outlet 4 opening outward, and A drainage device comprising a water inlet 5 connecting the drainage inlet 3 and the drainage outlet 4, and a liquid seal portion 6 for liquid sealing the drainage inlet 3 and the drainage outlet 4 in the water inlet 5; manufacturing method of the container, after forming the container body 1, the drainage device having the liquid seal portion 6 may be drilled by piercer.

Further, a male mold 10 for molding the container body 1 is provided.
1 and the female mold 102, on the back side of one of the molds, the inlet side of the drainage inlet 3 and the water introduction hole 5 in the drainage device, and the drainage outlet 4
Mold 113 for molding one of the water guide hole 5 and the outlet side.
Or 114 is disposed and when the container body 1 is molded,
After simultaneously forming one of the drainage inlet 3 and the water introduction hole 5 and the drainage outlet 4 and the water conduction hole 5 of the drainage device by the molding die 113 or 114, the other of the drainage device is pierced. May be used for drilling.

[0018]

When the object to be housed is stored in the container body 1 and is kept cool, the water in which the ice filled with the object is melted flows out from the drain outlet 4. The liquid sealing portion of the water guide hole 5 is used. cold air in the container body 1 is liquid sealed by 6, cold
The can not pass through the water guide holes 5, it is possible to prevent the outflow from the container main body 1 of the cool air.

Therefore, since no cool air is discharged, convection inside and outside the container body 1 does not occur, the temperature rise in the container body 1 is suppressed, and the ice for cooling is prevented from melting faster than the conventional example. In addition, since the convection phenomenon does not occur, the air flow in each container body 1 can be almost eliminated, and the drying and oxidation of the contained objects such as fresh fish can be reduced. As a result, it is possible to maintain the cooling effect for a long time while saving the consumption of ice for cooling,
The container main body 1 can be made smaller than conventional ones, and the odor of fresh fish does not flow out of the container main body 1, so that the environment around the container main body 1 can be favorably maintained.

When the lower end height H2 of the drain outlet 4 is higher than the upper end height H1 of the drain inlet 3, the water in which ice melts flows out of the drain outlet 4 to the outside of the container body 1. The liquid seal part 6 for preventing the outflow of cool air can be reliably formed in the water guide hole 5.

When the lower end height H2 of the drain outlet 4 and the upper end height H1 of the drain inlet 3 are the same, the water in which the ice melts becomes the lower end height H2 of the drain outlet 4. When it reaches, it flows to the drain outlet 4, but only the tip of water rises due to surface tension, and does not start flowing out from the drain outlet 4 unless the amount of rise exceeds the water head pressure height due to surface tension. . For this reason, the liquid seal portion 6 corresponding to the water head pressure height at which water swells according to the surface tension can be formed in the water introduction hole 5, and the liquid seal portion 6 prevents cold air from flowing out. Can be.

Further, the lower end height H2 of the drain outlet 4 is made lower than the upper end height H1 of the drain inlet 3, and the difference between the lower end height H2 and the upper end height H1 is determined by the drain outlet 4. When the water head pressure height H3 generated by surface tension on the lower end side of the water is not more than H3,
As shown in FIG. 5 , the swelling due to surface tension causes the swelling height to reach the head height H3, and then starts flowing out of the drain outlet 4.
The liquid seal portion 6 corresponding to the water head pressure height H3 at the time of starting outflow from the lower end portion of the container can be formed in the water introduction hole 5, and this liquid seal portion 6 prevents cold air from flowing out of the container body 1. Can be prevented.

Further, the lower end height H2 of the drain outlet 4 is made lower than the upper end height H1 of the drain inlet 3, and a predetermined length extending in the horizontal direction at least at the inlet side of the water introduction hole 5 continuous with the drain inlet 3. A water head that is provided with an upper inner surface 7 having a length and that generates a height difference between a lower end side height H2 of the drain outlet 4 and an upper end side height H1 of the drain outlet 3 due to surface tension at the lower end side of the drain outlet 4. The pressure height H3 and the upper inner surface 7
In the case where the height is not more than the total height of the water film thickness due to the surface tension, the tip of the water that has reached the lower end of the drain outlet 4 rises due to the surface tension, while the rise causes the water level to rise. When approaching the upper inner surface 7, a water film is formed between the upper inner surface 7 and the raised water surface due to surface tension.
And the liquid seal portion 6 having a total height of the height corresponding to the thickness of the water film can be formed in the water guide hole 5, and the liquid seal portion 6 allows cool air to flow out of the container body 1. Can be prevented.

Next, a container body 1 having a side wall 11 and a bottom wall 12 of a heat insulating structure, a drain port 3 opening inward at the bottom of the container body 1, a drain port 4 opening outward, and these drain ports A cooling device having a drainage device comprising a water guide hole 5 connecting the drainage outlet 3 and the drainage outlet 4, and a liquid seal portion 6 for liquid sealing the drainage inlet 3 and the drainage outlet 4 in the water guide hole 5; At the time, at least one of the male mold 101 and the female mold 102 for molding the container body 1 has a drain inlet 3 and a drain outlet 4 of the drainage device.
And a molding piece 113 or 114 for molding the water introduction hole 5 is provided, and a molding material is supplied to a molding space between the male mold 101 and the female mold 102 to mold the container body 1. Accordingly, the drainage inlet 3, the drainage outlet 4, and the water introduction hole 5 of the drainage device can be formed at the same time as the container body 1 by the molding pieces 113 or 114, and a cold storage container having the drainage device can be easily manufactured. be able to.

A first forming piece 11 for forming the drainage inlet 3 and the inlet side of the water introduction hole 5 is formed on the back of the male mold 101.
3 and a drain outlet 4 is provided on the back of the female mold 102.
And a second molding piece 114 for molding the outlet side of the water introduction hole 5 is provided, and a molding material is supplied to a molding space between the male mold 101 and the female mold 102 to mold the container body 1. When the drainage device including the drainage inlet 3, the drainage outlet 4, and the water introduction hole 5 is simultaneously formed by the first and second forming pieces 113 and 114, for example, as shown in FIGS.
From a horizontal through hole and a vertical groove at one end of the through hole
5 and FIG. 6 and the refrigerating container having each of the drainage devices shown in FIGS. 7 to 15 can be easily manufactured.

Further, a container body 1 having a side wall 11 and a bottom wall 12 of a heat insulating structure, a drain inlet 3 opening inward near the bottom or lower portion of the container body 1, a drain outlet 4 opening outward, and A drainage device comprising a water inlet 5 connecting the drainage inlet 3 and the drainage outlet 4, and a liquid seal portion 6 for liquid sealing the drainage inlet 3 and the drainage outlet 4 in the water inlet 5; A method for manufacturing a container, comprising: forming a molded body 8 of the drainage device; and forming a fitting hole 81 of the molded body 8 at the bottom of the container main body 1 when the container main body 1 is molded.
When the molded body 8 is fitted into the fitting hole 81 and joined after the molding of the container body 1, the molded body 8 is more resistant than the heat insulating structure made of the foamed resin constituting the side wall 11. The container body 1 can be formed of a material having high impact strength and high strength, and the strength of the container body 1 is increased, and the durability of the drainage device can be improved.

In the case where the drainage device having the liquid seal portion 6 is pierced by a piercing tool after the container body 1 is formed, the drainage device can be freely formed without using a complicated forming device having a forming piece. It is possible to easily process a cold storage container having a drainage device with a shape.

Further, a male mold 10 for molding the container body 1 is provided.
1 and a female mold 102, a mold for molding one of the drainage inlet 3 and the inlet side of the water guide hole 5 and the drainage outlet 4 and the outlet side of the water guide hole 5 in the drainage device. 1
When the container main body 1 is formed by disposing 13 or 114, the molding die 113 or 114 is used for the drainage inlet 3 and the water inlet 5 side of the drainage device, and the drainage outlet 4 is formed.
When one of the drainage device and the outlet side of the water guide hole 5 are simultaneously formed, and the other of the drainage devices is drilled with a piercing tool, the drainage inlet 3 and the inlet side of the water guide hole 5 in the drainage device, and the drainage outlet 4 Further, since it is possible to select a direction in which the water hole 5 is easily drilled with the outlet side, the water hole 5 can be easily formed even when the shape of the water hole 5 is stepped or V-shaped.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 2, a refrigerating container used in a plurality of layers as shown in FIG. 2 is, for example, a box-shaped article having a heat insulating structure formed by foaming a foamed resin as shown in FIG. A container body 1 comprising a side wall 11 and a bottom wall 12 of a heat insulating structure;
A lid plate 2 for closing an upper open portion of the container body 1; a drainage device having a through hole at the bottom of the side wall 11; and fresh fish and the like are contained in the container body 1 as objects to be contained. The ice for cooling is filled, the fresh fish is stored while being cooled by the ice, and the water in which the ice is melted is drained from the container body 1 through the drainage device.
When a plurality of container bodies 1 are stacked as shown in FIG. 2, the lid plate 2
May not be provided.

According to the present invention, the drainage device is
A drain inlet 3 opening inside the container body 1, a drain outlet 4 opening outside, the drain inlet 3 and the drain outlet 4
And a water guide hole 5 connecting the water guide hole 5
Further, a liquid seal portion 6 for liquid sealing the drainage inlet 3 and the drainage outlet 4 is provided.

That is, as shown in FIG. 3 in a partially enlarged manner, a concave groove 13 is provided in a peripheral portion of the bottom wall 12 in the container body 1, and a lower outside of the side wall 11 is provided.
At the lower end, tilt downward from the outside to the inside
A vertical groove 29 having an inclined portion 29a is provided, and one end is
The inside of the side wall 11 is open, and the other end is the vertical groove.
29 is a horizontal hole opened near the lower end of the inclined portion 29a.
30 are provided and open to the inside of the side wall 11 of the horizontal hole 30
The opening is the drainage inlet 3 and the vertical groove 29
The upper end side of the inclined portion 29a is defined as the drain outlet 4,
The drain hole 3 is formed by the flat hole 30 and the inclined portion 29a.
A water guide hole 5 connecting to the drain outlet 4 is formed.

In front of the lower end of the drain outlet 4,
The height from the lower end surface of the bottom wall 12, that is, the drain outlet 4
The lower end side height H2 at the upper end of the drainage inlet 3.
The height of the side end from the lower end surface of the bottom wall 12, that is,
Make the ice higher than the upper end side height H1 at the drainage inlet 3
Dissolved water is discharged from the drain outlet 4 through the water introduction hole 5
When draining, the drainage outlet 4
Lower end side height H2 and the upper end at the drainage inlet 3
The liquid system having a height corresponding to the height difference from the side height H1.
Is formed as shown by the dotted line in FIG.
You.

[0033] Thus, the ice for cold filled with accommodating the fish in the container body 1, when cold the fish by providing a container the cover plate 2 to the upper portion of the main body 1, the ice had melted water Until the water reaches the upper end of the drain inlet 3, the cool air inside the container body 1 flows out of the drain outlet 4 to the outside of the container body 1. When the height H2 is reached, the liquid seal portion 6 is formed in the water guide hole 5, and the liquid seal portion 6 forms
Will be liquid-sealed to the drainage inlet 3. For this reason, when the height exceeds the lower end side height H2 of the drain outlet 4, the water is drained, but the cool air in the container body 1 is shut off by the liquid seal portion 6 to prevent the cool air from flowing out of the container body 1. Can be.

Therefore, since the cool air is not discharged as described above, the convection phenomenon of the air inside and outside the container body 1 does not occur, so that the ice for cooling can be prevented from melting faster than the conventional example. In addition, it is possible to reduce drying and oxidation of the contained matter such as fresh fish generated by the air flow due to the convection phenomenon. As a result, the cooling effect can be maintained for a long time while the consumption of ice for cooling is saved, and the amount of ice used can be reduced, so that the container body 1 can be made smaller in size than the conventional one. In addition, the odor of fresh fish is
Since it does not flow out of the container body, the environment around the container body 1 can be favorably maintained.

Further, the height H2 of the lower end portion before Symbol drainage outlet 4, the bottom case of lower than the height of the upper surface of the wall 12, the ice had melted water reservoir Merare in the concave groove 13, the
The water in the concave groove 13 is set at a higher water level than the upper surface of the bottom wall 12.
Since the possible discharge from the drainage outlet 4 before the state can be fresh fish is you to prevent immersed in water, cold fish in good condition.

Further, in the embodiment shown in FIG. 3, the lower end height H2 of the drain outlet 4 is higher than the upper end height H1 of the drain inlet 3, but as shown in FIG. The lower end side height H2 of the outlet 4 and the upper end side H1 of the drainage inlet 3 may be the same height.

That is, the drainage device shown in FIG.
A vertical groove having a horizontal portion 31a at the lower end outside the lower portion of 11
31 and one end is opened inside the side wall 11.
Mouth and, and the other end is the horizontal portion 31a of the longitudinal grooves 31
Only set a horizontal hole 32 which opens near a <br/> both opening which opens into the inside of the side wall 11 of the horizontal hole 32 and the drainage inlet 3, the outer end of the horizontal portion 31a of the longitudinal grooves 31 the parts and the drainage outlet 4, before SL by the horizontal hole 32 and the horizontal portion 31a to form a conductive water hole 5 connecting the drainage outlet 4 and the drainage inlet 3 and the lower end height H of the drainage outlet 4
2, the same height as the upper end height H1 in the drainage inlet mouth 3, the time the water from the drainage outlet 4 is you outflow, the water head pressure height caused by the surface tension in the horizontal portion 31a of the drainage outlet 3 The liquid seal portion 6 having a height corresponding to H3
Is formed.

In this case, the water in which the ice has melted flows into the drain outlet 4.
When the water reaches the lower end height H2, the water flows to the lower end of the drain outlet 4 , that is, to the horizontal portion 31a , but the front end of the water that has reached the lower end due to surface tension rises only. Therefore, the water does not start flowing out from the lower end unless the rising amount exceeds the head height due to surface tension. Therefore, it is possible to form the liquid seal portion 6 corresponding to the water head pressure high is the water rises in response to surface tension on the water guide hole 5. Therefore, it is possible to prevent the cool air from flowing out of the container body 1 by the liquid seal portion 6.

As shown in FIG. 5 , the drainage device is formed in a horizontal and stepped shape.
The height of the lower end side C2 from the lower end surface of the bottom wall 12 at the lower end side , that is, the lower end side height H2 of the drain outlet 4 is set at the lower end side A1 of the drain inlet 3 below the bottom wall 12 of the upper end side A1. <br/> The height from the end face , that is, the height H on the upper end side of the drainage inlet 3.
1, lower end side height H2 and upper end side height H1.
Is less than or equal to the water head pressure height H3 generated by surface tension at the lower end side of the drain outlet 4, ie, H3> H1.
-H2 may be used.

In this case, the tip of the water reaching the lower end C2 of the drain outlet 4 from the drain inlet 3 rises due to surface tension, as shown in FIG. After reaching the height H3, the water starts flowing out from the lower end C2.
It said liquid seal portion 6 of the height corresponding to the water head pressure high H3 of when to begin flowing out will be formed as shown in FIG. 5 the dotted line in the water guide hole 5. Therefore, the drainage outlet 4 is liquid-sealed with respect to the drainage inlet 3 by the liquid seal portion 6, so that it is possible to prevent the cool air from flowing out of the container body 1.

Further, as shown in FIG. 6 , the drainage device is formed in a horizontal and stepped shape.
The height of the lower end side C2 from the lower end surface of the bottom wall 12 at the lower end side , that is, the lower end side height H2 of the drain outlet 4 is set at the lower end side A1 of the drain inlet 3 below the bottom wall 12 of the upper end side A1. <br/> The height from the end face , that is, the height H on the upper end side of the drainage inlet 3.
1 and an upper inner surface 7 of a predetermined length extending in the horizontal direction is provided at least on the inlet side of the water introduction hole 5 continuous with the drainage inlet 3, and the lower end side height H2 of the drainage outlet 4
And the height difference between the upper end side height H1 of the drainage inlet 3 and the water head pressure height H3 generated by the surface tension at the lower end side of the drainage outlet 4, and the water film thickness H4 due to the surface tension on the upper inner surface 7. Or less, ie, H1> H2,
In addition, H1−H2 <H3 + H4 may be satisfied.

In this case, the tip of the water reaching the lower end C2 of the drain outlet 4 from the drain inlet 3 rises due to surface tension, and the rise causes the water level to rise and approach the upper inner surface 7. At this time, a water film is formed between the upper inner surface 7 and the raised water surface due to surface tension, and as shown by a dotted line in FIG. The liquid seal portion 6 having a total height equal to the thickness of the liquid seal portion 6 can be formed in the water guide hole 5, and the liquid seal portion 6 allows the drain outlet 4 to be in contact with the drain inlet 3. Since it is sealed, it is possible to prevent the cool air from flowing out of the container body 1 by the liquid seal portion 6.

In the drainage device shown in FIG . 7 , a vertical groove 25 having a downwardly inclined portion 25a from the outside toward the inside is provided on the lower outside of the lower side of the side wall 11, and the lower end is provided with the vertical groove 25. An inclined hole 26 is formed near the inclined portion 25a of the vertical groove 25 and has an upper end opening inside the side wall 11, and the opening of the inclined hole 26 opening inside the side wall 11 is drained. In addition to the inlet 3, the upper end side of the inclined portion 25 a of the vertical groove 25 is the drainage outlet 4, and the water guide hole 5 is formed from the lower portion of the vertical groove 25 and the inclined hole 26.

In this embodiment, the lower end height H2 at the drain outlet 4 is lower than the lower end height H6 at the drain inlet 3, but the inclined hole 26 is the lowermost part of the vertical groove 25. The height of the upper end side H5 in the opening that opens to face the inclined portion 25a is set higher than the drainage outlet 4
When the water is drained from the lower part of the inclined hole 26 and the vertical groove 25, the drain outlet 4 has a height corresponding to a height difference between a lower end side height H2 and the upper end side height H5. The liquid seal portion 6 is formed.

The drainage device shown in FIG. 8 is a modification of FIG.
Form example, the bottom outer sides of the sidewall 11, the horizontal portion 2 to the lower end
A vertical groove 27 having 7a is provided upward and
One end is opened inside the side wall 11, and the other end is provided with a horizontal hole 28 opening near the horizontal portion 27 a of the vertical groove 27, and the opening is opened inside the side wall 11 of the horizontal hole 28. And the outer end of the vertical groove 27 in the horizontal portion 27a is referred to as the drain outlet 4.
The horizontal hole 28 and the horizontal portion 27a form a water introduction hole 5 connecting the drainage inlet 3 and the drainage outlet 4.

In this embodiment, as in FIG. 5 , the lower end height H2 at the drain outlet 4 is lower than the upper end height H1 at the drain inlet 3, and the lower end height H of the drain outlet 4 is reduced. The height difference between H2 and the height H1 on the upper end side of the drain outlet 4 is not more than the head height H3 generated by surface tension in the horizontal portion 27a of the vertical groove 27, and water flows out from the drain outlet 4. At this time, the upper end height H1 at the drain inlet 3 and the lower end height H at the drain outlet 4 are set.
The liquid seal portion 6 having a height equal to or larger than the height difference from the liquid seal portion 2 is formed.

The drainage device shown in FIG .
The upper side is horizontal, and the lower side is stepped,
A horizontal hole 33 is formed on the drain outlet side so as to form a restrictor. A large-diameter opening of the horizontal hole 33 opening inside the side wall 11 is defined as the drain inlet 3 and is opened outside the side wall 11. The small-diameter opening is the drain outlet 4, and the horizontal hole 33 forms a water guide hole 5 connecting the drain inlet 3 and the drain outlet 4. The lower end height H 2 of the drain outlet 4 is determined by the drain inlet 3. The height difference between the upper end side height H1 of the drainage inlet 3 and the lower end side height H2 of the drainage outlet 4 is lower than the upper end height H1 of the water head pressure height caused by surface tension at the small diameter opening. H3 or less, and when water flows out from the drain outlet 4, the liquid seal portion 6 having a height corresponding to the head pressure height H3 at the small-diameter opening portion.
Is formed.

The drainage device shown in FIG . 10 has an upper horizontal hole 34 having one end closed and the other end opened outside the side wall 11, one end opened inside the side wall 11, and the other end opened. And a lower horizontal hole 35 having a closed side.
5 is the drainage inlet 3, the opening of the upper horizontal hole 34 is the drainage outlet 4, and the closed portions of the upper and lower horizontal holes 34, 35 are both horizontal holes 3
The upper and lower horizontal holes 34 and 35 form a water guide hole 5 connecting the drainage inlet 3 and the drainage outlet 4 to each other.

Also, in this embodiment, the lower end height H2 of the drain outlet 4 is made equal to the upper end height H1 of the drain inlet 3, and when water flows out from the drain outlet 4, the upper horizontal The liquid seal portion 6 having a height corresponding to the water head pressure height H3 on the lower surface side of the hole 34 is formed.

The drainage device shown in FIG. 11, prior Symbol sidewall 11
A horizontal hole 36 having a closed small-diameter portion and a large-diameter opening opening inside the side wall 11, and a rounded portion 16 provided at an outer lower end of the side wall 11. A vertical hole 37 extending from the small-diameter portion to the round portion 16 and opening at the round portion 16 is provided. The large-diameter opening of the horizontal hole 36 is used as the drainage inlet 3 and the horizontal hole 3 is formed.
6, the communicating portion communicating with the vertical hole 37 is defined as the drain outlet 4, and the horizontal hole 36 is used to form the water guide hole 5. The lower end side height H2 of the drain outlet 4 is the same as in FIG. The upper end side height H1 of the drainage inlet 3 is lower than the upper end side height H1 of the drainage inlet 3 and the drainage outlet 4
The height difference from the lower end side height H2 of the drainage outlet 4 is not more than a water head pressure height H3 generated by surface tension at the drainage outlet 4, and when water flows out from the drainage outlet 4, the drainage outlet 4 formed in the communication portion is formed. The liquid seal portion 6 having a height corresponding to the water head pressure height H3 is formed.

[0051] Furthermore, the drainage device may be configured as shown in FIGS. 12 to 22.

The drainage device shown in FIG . 12 has a bent hole 40 having a lower bent portion 40 formed by bending the central portion in the longitudinal direction downward in the side wall 11 of the container body 1 near the bottom wall 12. An opening opening inside the side wall 11 of the bent hole 41 is defined as the drainage inlet 3, an opening opening outside the side wall 11 is defined as the drainage outlet 4, and the drainage opening 3 is provided with the drainage outlet 3. The lower end side height H2 of the drainage outlet 4 is set to be higher than the upper end side height H5 of the bent portion 40 so that the water flowing out of the drainage outlet 4 is set to the drainage hole. The liquid seal portion 6 has a height corresponding to a height difference between a lower end side height H2 of the outlet 4 and an upper end side height H5 of the bent portion 40.

The drainage device shown in FIG . 13 has an upper bent portion formed by bending the central portion in the longitudinal direction upward in the side wall 11 of the container body 1 near the bottom wall 12, contrary to FIG. A bent hole 43 having a bent hole 43 is provided, and an opening in which the bent hole 43 opens inside the side wall 11 is defined as the drainage inlet 3.
The opening that opens to the outside of the side wall 11 is referred to as the drain outlet 4, the portion from the drain inlet 3 to the drain outlet 4 is referred to as the water introduction hole 5, and the lower end side height H6 of the bent portion 42 is defined as the drain outlet 3. The height corresponding to the height difference between the lower end height H6 of the bent portion 42 and the upper end height H1 of the drainage inlet 3 when water flows out of the drainage outlet 4 is set higher than the upper end height H1 of the drainage outlet 4. The liquid seal portion 6 is formed.

The drainage device shown in FIG . 14 is obtained by making the bent hole 41 of FIG. 12 into a curved shape, and protrudes downward in the center in the length direction near the bottom wall 12 on the side wall 11 of the container body 1. Hole 45 having downward curved portion 44 curved
The height H2 of the lower end of the drain outlet 4 is made higher than the height H7 of the upper end of the bent portion 44. When water flows out of the drain outlet 4, the lower end height H2 of the drain outlet 4 is The liquid seal portion 6 has a height corresponding to the height difference between the bent portion 44 and the height H7 on the upper end side.

The drainage device shown in FIG . 15 is one in which the bent hole 43 of FIG. 13 is formed in a curved shape, and a central portion in the length direction projects upward near the bottom wall 12 on the side wall 11 of the container body 1. Hole 47 having an upper curved portion 46 curved
The lower end side height H8 of the curved portion 46 is made higher than the upper end side height H1 of the drainage inlet 3 so that when water flows out from the drainage outlet 4, the lower end side height H8 of the bent portion 46 The liquid seal portion 6 is formed at a height corresponding to a height difference from an upper end side height H1 of the drainage inlet 3.

The drainage device shown in FIG . 16 has a double curved hole 48 having one lower curved portion 48a and two upper curved portions 48b, 48b near the bottom wall 12 on the side wall 11 of the container body 1. An opening in which the double curved hole 48 opens to the inside of the side wall 11 is referred to as the drainage inlet 3.
The drain opening 4 is defined as the drain opening 4, and a portion extending from the drain inlet 3 to the drain outlet 4 is a water guiding hole 5.
The lower end side height H9 of the upper curved portion 48b located outside the lower curved portion 48a is
The height difference between the lower end height H9 of the upper curved portion 46b and the upper end side height H10 of the lower curved portion 48a when water flows out from the drain outlet 4 is set higher than the upper end height H10 of the lower curved portion 48a. The liquid seal portion 6 having a corresponding height is formed.

In FIG. 16 , reference numeral 49 denotes a fitting member to be fitted into a corner between the side wall 11 and the bottom wall 12 of the container body 1, and the upper end surface of the fitting member 49 is formed in a wave shape. hand,
The double curved hole 48 is formed together with the side wall 11.

The drainage device shown in FIG . 17 has a lower inflection portion comprising a lower concave portion 50 and a lower projecting portion 51 in the longitudinal direction in the side wall 11 of the container body 1 near the bottom wall 12. A deformed bent hole 52 is provided, an opening of the deformed bent hole 52 opening inside the side wall 11 is the drainage inlet 3, and an opening opening outside the side wall 11 is defined as the drainage outlet 4.
A portion from the drainage inlet 3 to the drainage outlet 4 is defined as a water guide hole 5, and a lower end side height H2 of the drainage outlet 4 is defined as H2.
Higher than the lower end side height H11 of the lower protruding portion 51,
When water flows out from the drain outlet 4, the drain outlet 4
And a lower end height H of the lower protruding portion 51.
The liquid seal portion 6 having a height corresponding to the height difference from the liquid seal portion 11 is formed.

In FIG. 17 , reference numeral 53 denotes a fitting member to be fitted into the corner between the side wall 11 and the bottom wall 12 of the container body 1, and the lower concave portion 5 is provided on the upper end surface of the fitting member 53.
0 and the side wall 11 provided with the downward projection 51.
At the same time, the deformed bending hole 52 is formed.

In the drainage device shown in FIG . 18 , the bent hole 52 in FIG. 17 is inverted, and the upper recess 5 is provided in the side wall 11 of the container body 1 near the bottom wall 12 in the longitudinal direction.
A deformed bent hole 56 having an upper bent portion composed of the upper bent portion 4 and the upper projecting portion 55 is provided. The opening where the deformed bent hole 56 opens to the inside of the side wall 11 is the drainage inlet 3. The opening that opens is the drainage outlet 4, and the portion from the drainage inlet 3 to the drainage outlet 4 is the water introduction hole 5, and the upper end side height H12 of the upper protrusion 55
Is set higher than the height H1 on the upper end side of the drainage inlet 3, and when water flows out from the drainage outlet 4, the upper protruding portion 55
The liquid seal portion 6 having a height corresponding to a height difference between the upper end side height H12 of the drainage inlet 3 and the upper end side height H1 of the drainage inlet 3 is formed. In FIG. 18 ,
Reference numeral 57 denotes a fitting member fitted into a corner between the side wall 11 and the bottom wall 12 of the container main body 1. The upper projecting portion 55 is provided on an upper end surface of the fitting member 57, and the upper concave portion 54 is provided. The deformed bending hole 56 is formed together with the side wall 11 provided with.

The drainage device shown in FIG .
A recess 58 extending from the height of the side wall 11 to the lower end of the side wall 11 is formed outside the side wall 11.
Open inside the container body 1 and the other end of the recess 58
Forming a horizontally extending fitting hole 81 opening at the middle part in the height direction
Form, the Rutotomoni placed along the vertical portion 60 of the L-shaped pipe 59 which forms a molded body 8 in the recess 58, the water of the pipe 59
The flat portion 61 is fitted into the fitting hole 81 and the pipe 5
9 an upper end of the vertical portion 60 with an opening at the top in the recess 58 of the tip portion of the horizontal portion 61 is opened to the inside of the container body 1, the front end portion of the horizontal portion 61 and the drainage inlet 3 At the same time, the leading end of the vertical portion 60 is the drainage outlet 4, and the water guide hole 5 is formed by the entire length of the pipe 59.

In this embodiment, the vertical portion 60
The tip height H13 is a of being higher than the upper end height H1 at the tip of the horizontal portion 61, when the water from the drainage outlet 4 flows out, into the pipe 59, the vertical portion 60 The liquid seal portion 6 having a height corresponding to a height difference between the height H13 at the front end portion and the height H1 at the upper end side at the front end portion of the horizontal portion 61 is formed. In this case, the water level in the container body 1 can be lowered by reducing the height difference.

In this case, the L-shaped pipe 59 is used.
The molded body 8 is made of a foamed resin constituting the side wall 11.
Formed from a material that is more impact resistant and stronger than the heat insulation structure
And the strength of the container body 1 is increased.
Thus, the durability of the drainage device can be improved.

The drainage device shown in FIG .
A concave portion 62 extending from the middle in the height direction of the side wall 11 to the lower end thereof is formed outside the side wall 11, and one end is formed in the side wall 11.
Open inside the container body 1 and the other end of the recess 58
Forming a curved fitting hole 81 opening to the lower side in the height direction
Te, J-shaped pipe 63 which forms a molded body 8 in the recess 62
And along the straight portion 64 of Rutotomoni, the curved portion of the pipe 63
65 is fitted into the fitting hole 81, while opening the upper end of the linear portion 64 of the pipe 63 at the top inside the recess 62, thereby opening the distal end portion of the bending portion 65 to the inside of the container body 1 The tip of the curved portion 65 is connected to the drainage inlet 3.
The upper end of the straight portion 64 is used as the drain outlet 4 to form the water guide hole 5 over the entire length of the pipe 63.

In this embodiment, the linear portion 64
Is higher than the height H1 on the upper end side of the distal end of the curved portion 65. When water flows out from the drain outlet 4, the distal end of the linear portion 64 is formed in the pipe 63. The liquid seal portion 6 having a height corresponding to a height difference between the height H14 and the height H1 at the upper end side of the distal end portion of the curved portion 65 is formed. In this case as well, the water level in the container body 1 can be lowered by reducing the height difference.

The drainage device shown in FIG . 21 corresponds to FIGS.
In a modification of the fourth embodiment, a bent pipe 67 having a bent portion 66 protruding downward is provided near the bottom wall 12 of the side wall 11 at the center in the longitudinal direction of the molded body 8 ,
The opening that opens inside the side wall 11 of the pipe 67 is the drainage inlet 3, and the opening that opens outside the side wall 11 is the drainage inlet 3, and the water guide hole 5 is formed by the entire length of the pipe 67. It was done.

In this embodiment, as in FIGS. 12 and 14 , the lower end height H2 of the drain outlet 4 is higher than the upper end height H15 of the bent portion 66, and water flows out of the drain outlet 4. Then, the liquid seal portion 6 having a height corresponding to the height difference between the height H2 of the drain outlet 4 and the height H15 on the upper end side of the bent portion 66 is formed in the pipe 67. I have to.

The drainage device shown in FIG .
, Two groove members 69, 7 having recessed grooves 68 extending halfway in the width direction of the side wall 11 near the bottom wall 12.
0 is provided separately from the container body 1, and these groove members 69,
70 is formed such that a part of the depth of each of the recessed grooves 68 is opposed to each other in the up-down direction and communicates with each other. The recessed groove 68 of the groove member 69 located on the lower side is formed inside the side wall 11. The opening that opens is the drainage inlet 3, and the opening in which the recessed groove 68 of the groove member 70 located on the upper side opens to the outside of the side wall 11 is the drainage outlet 4, and the two recesses communicate with each other. The water guide holes 5 are formed by the inlet grooves 68.

In this embodiment, the lower end height H2 of the drain outlet 4 is set to be the same as the upper end height H1 of the drain inlet 3, and when water flows out of the drain outlet 4, the water guide hole is formed. The liquid seal portion 6 having a height corresponding to the water head pressure height H3 on the upper surface of the groove member 69 located on the lower side is formed in the inside 5.

Next, for example, curved, as shown in FIG. 14
FIG. 2 shows a cold storage container having a drainage device composed of water introduction holes 5 .
It will be described for manufacturing using a molding apparatus shown in 3.

The molding apparatus shown in FIG . 23 includes a male mold 101 and a female mold 102 for molding the container main body 1, and the male mold 101 is provided with a movable male frame 10.
3 is mounted via a mounting plate 104. In addition, the female mold 102 is attached to the immovable female frame 105 via the attachment plate 106, and the male and female frames 10
Male and female heating / cooling chambers 107 and 108 into which steam and water can be selectively injected are provided in the interiors of the chambers 3 and 105, respectively.

Then, the female mold 1 of the male mold 101
2, the molding space 110 for molding the container body 1 from a foamable resin such as polystyrene or polyolefin between the molds 101 and 102 is shown in FIG.
3 is formed. Incidentally, 111
Is a feeder for supplying a foamable resin material such as polystyrene or polyolefin to the molding space 110,
Reference numeral 112 denotes a knock pin for pushing out the container body 1 formed in the molding space 110 from the female mold 102.

Further, a drainage inlet 3, a drainage outlet 4, and a water introduction hole 5 of the drainage device are formed in the female mold 102.
A curved holder 116 for holding a curved molding piece 114 reciprocally is provided, and an air cylinder 117 is provided on the back side of the female heating / cooling chamber 108 with a piston 118 of the cylinder 117. It is mounted via a hollow member 119 that is movably housed. Then, using a push-pull flexible operating cable 122 composed of an inner cable 120 and an outer cylinder 121, the molding piece 114 is moved relative to the molding space 110 in conjunction with the reciprocation of the piston 118. You can go back and forth. That is, as shown in an enlarged manner in FIG.
The end of the female mold 102 on the side of the female mold 102 is
23 , while the end of the inner cable 120 on the female mold 102 side is connected to the molding piece 114, while the outer cylinder 121 is connected to the cylinder 117 side of the outer cylinder 121 as shown in FIG. The end is fixed to the back plate 123 of the female heating / cooling chamber 108 and the cylinder 117 of the inner cable 120 is fixed.
The side end protrudes into the hollow member 119 and is connected to the piston 118.

The drainage inlet 3, the drainage outlet 4, and the water introduction hole 5 are connected to the container body 1 by the molding piece 114.
It is molded at the same time as molding.

That is, the male mold 101 is brought close to the female mold 102 and the molding space 1 is inserted between the molds 101 and 102.
10 and then, by moving the piston 118, the molding piece 114 is attached to the holder 1 via the inner cable 120 as shown in FIGS.
From 16, it is made to protrude into the molding space 110, and the protruding tip is brought into contact with the male mold 101.

With the molding piece 114 protruding into the molding space 110, foamable resin is supplied from the feeder 111 to the molding space 110, and then steam is supplied to the heating / cooling chambers 107 and 108. By injecting, the foamable resin is foamed in the molding space 110. Furthermore,
After the foaming is completed, water is fed into each of the heating / cooling chambers 107 and 108, and the container body 1 molded in the molding space 110 is formed.
The cooling is completed to complete the molding. Also,
After the molding is completed, the molding piece 114 is retracted from the molding space 110 into the holder 116 by the movement of the piston 118, and the male mold 101 is retracted from the female mold 102. Then, the container body 1 formed by the protruding movement is taken out from the female mold 102.

As described above, by using the molding device in which the molding piece 114 is advanced and retracted with respect to the molding space 110, the drainage port 3 of the drainage device is formed by moving the molding piece 114 into and out of the molding space 110. , Drainage outlet 4
Further, the water introduction hole 5 can be formed at the same time as the container main body 1, and a cold storage container having the drainage device can be easily manufactured.

In the molding apparatus shown in FIG. 23 , the molding piece 114 is provided on the female mold 102 side, but it goes without saying that it may be provided on the male mold 101 side. Although the push-pull operation cable is used, a pull-type operation cable may be used, for example, by using a spring that urges the molding piece 114 to protrude into the molding space 110. A driving device such as an air cylinder may be provided near each holder 116, and the driving device may directly move the molding piece 114.

In the case of manufacturing a cold storage container having a drainage device as shown in FIG. 14 , the container body 1 can be formed using a piercing tool such as a heated nichrome wire without using the forming device shown in FIG. A hole may be formed near the bottom wall 12 of the side wall 11 or, for example, a notch may be formed at the corner of the container body 1 at the same time as the container body 1 is formed. It may be manufactured by fitting a fitting member manufactured separately from the container body 1 into the portion. In the case where the fitting member is used as described above, even the drainage device having a complicated shape shown in FIGS. 16 to 18 can be easily manufactured.

In FIGS. 23 and 24 , the molding piece 1
Although the case where the cold storage container having the drainage device is manufactured by providing only the rear side of the female mold 102 and providing the drain 14 has been described, as shown in FIG. A first molding piece 113 for molding the inlet side of the drainage inlet 3 and the water guide hole 5 is provided, and a second outlet for forming the drainage outlet 4 and the outlet side of the water guide hole 5 on the rear surface of the female mold 102. A molding piece 114 is provided, and the male mold 101 and the female mold 1 are provided.
02, when the molding material is supplied to the molding space 110 formed between the first and second molding spaces 110,
The drainage device including the drainage inlet 3, the drainage outlet 4, and the water introduction hole 5 may be formed simultaneously by the forming pieces 113 and 114.

That is, as shown in FIG.
01 is a column-shaped first molding piece 11 notched at the upper end.
3 is provided horizontally, and a first holder 116 is provided in the female mold 102 horizontally to accommodate a cylindrical second molding piece 114 so as to be movable. The center lines of the molding pieces 113 and 114 are slightly shifted up and down. In addition, each molding piece 113, 114
An inner cable 120 of an operation cable 122 is connected to a rear end portion of the cable, and the molding pieces 113 and 114 can be advanced and retracted with respect to the molding space 110 via the cable 120. 1
When the container body 1 is molded by supplying a molding material made of a foamed resin from 11, the molding pieces 113 and 114 are made to protrude into the molding space 110 so as to face each other, and come into contact with each other via the notch. After the foaming is completed, the molding pieces 113 and 114 are moved into the molding space 11 after the foaming is completed.
0, and then the molded container body 1 is placed in each mold 1
01, 102, the drainage inlet 3
And a drainage device comprising a drainage outlet 4 and a water introduction hole 5 are formed at the same time. In other words, the first molding piece 113 is formed into the drainage inlet 3 and the inlet side of the water introduction hole 5 by the reciprocation of the first molding piece 113 with respect to the molding space 110, and the second molding piece 11
4 with respect to the molding space 110, the drainage inlet 3
Since the outlet side of the water introduction hole 5 is formed, the drainage device can be easily formed at the same time as the container body 1 is formed, and the cool container can be easily manufactured.

As described above, the first and second molding pieces 113,
FIGS. 5 and 6 show a case where a cold storage container is formed using 114 .
It is possible to easily manufacture a cold container having a bent drainage device shown in FIG.
Each molding piece 11 is tilted so as to be V-shaped.
12 and 11 by matching the tips of
Also, a cold storage container having a V-shaped drainage device shown in FIG. 13 can be easily manufactured.

The first and second molding pieces 113, 114
3 and FIG.
4, vertical grooves 29, 31 , 2 as shown in FIGS.
The drainage device having the vertical holes 37 extending in the vertical direction as shown in FIG. 11 can be formed at the same time as the container body 1 is formed, and furthermore, as shown in FIG. Bei drainage device having a small diameter opening portion and the large diameter opening to
Can be easily manufactured.

In the case of manufacturing a cold storage container having a molded article 8 made of the tube whose both ends are open as shown in FIG. 21 , two molded articles 8 made of a tube are provided and the container body 1 is provided. When the container body 1 is formed, a fitting hole 81 of the molded body 8 is formed in a lower portion of the container body 1, and after the container body 1 is formed, the molded body 8 is inserted into the fitting hole 81 by the side wall 11.
It may be fitted and joined from both inside and outside . In this case, the molded body 8 can be formed from a material having a higher impact resistance and a stronger strength than the heat insulating structure made of the foamed resin constituting the side wall 11, so that the strength of the container body 1 is increased. When the container body 1 is molded, the container 8 is molded in a state where the molded body 8 is inserted into the molding space 110,
The molded body 8 may be embedded and molded by separating the molded body 8 from the operation cable 122 after the molding of the container body 1. The molded body 8 can be easily provided on the side wall 11 as compared with the case where the molded body 8 is fitted into the hole 81.

Further, the drainage device shown in FIG.
When manufacturing the cold container, bending the formed shape space 110
The container main body 1 is formed in a state where the pipe 67 is inserted.
By doing so, the pipe 67 is formed when the container body 1 is formed.
It may be formed by embedding, and in this case,
When the molded body 8 is formed in a bent shape,
Even if it is not possible to fit after forming, it is easy to make a cool container
Can be built.

Further, when a cool container having a drainage device as shown in FIG. 5 is manufactured by using, for example, a molding device as shown in FIG. 23 , a female mold 10 for molding the container body 1 is formed.
2. On the back surface, a forming piece 114 for forming the drainage outlet 4 and the outlet side of the water guide hole 5 in the drainage device is provided. After the simultaneous molding, the drainage inlet 3 and the inlet side of the water introduction hole 5 of the drainage device may be pierced with a piercing tool, or the male mold 101 for molding the container body 1 may be formed on the back surface. A forming piece 113 for forming the drainage inlet 3 and the inlet side of the water guide hole 5 in the drainage device is provided, and after the forming pieces 113 simultaneously form the drainage inlet 3 and the inlet side of the water guide hole 5 in the drainage device, The drainage outlet 4 and the inlet side of the water introduction hole 5 of the drainage device may be pierced by a piercing tool such as a drill.
In addition, it is possible to select one of the inlet side of the water guide hole 5 and the drain side 4 and the outlet side of the water guide hole 5 whichever is easier to perform the drilling process, so that the shape of the water guide hole 5 is stepped. Even if it has a V-shape, it can be easily processed.

Further, as shown in FIG. 19 and FIG.
When forming the drainage device consisting of the pipes 59 and 63 in the shape of a letter or a letter J, after forming the container body 1, the pipes 59 and 63 are press-fitted into the container body 1 so that the cold storage container can be simplified. Can be manufactured.

[0088] Further, the waste water when the apparatus for manufacturing a cold container having the container body 1 in a state that said the molding space 110 is rush two <br/> one groove members 69, 70 shown in FIG. 22 by molding, there is to implant forming a pre SL each groove members 69 and 70 during the molding of the container body 1, the container body 1
Even when using the respective groove members 69, 70 fitted to it takes time, it is possible to easily manufacture a cold container.

As described above , according to the present invention ,
Water ice filling with contained object in serial containers present body is solved is flowing out from the drain exit, the more vessels present within the cold air to the liquid sealing portion of the water guiding hole is liquid sealed, the water guide holes can not pass through the cold air can be prevented from <br/> flowing out from the container the body.

Therefore, since no cool air is discharged, the convection inside and outside the container body 1 does not occur, the temperature rise in the container body 1 is suppressed, and the ice for cooling is prevented from melting faster than the conventional example. In addition, since there is no convection phenomenon, the air flow in the container main body 1 can be almost eliminated, and the drying and oxidation of the contained objects such as fresh fish can be reduced. As a result, the cooling effect can be maintained for a long time while the consumption of ice for cooling is saved, and the container body 1 can be downsized as compared with the conventional one.
Since the odor of fresh fish does not flow out of the container body 1, the environment around the container body 1 can be maintained well.

When the lower end height H2 of the drain outlet 4 is higher than the upper end height H1 of the drain inlet 3, the water in which the ice melts flows out of the drain outlet 4 to the outside of the container body 1. The liquid seal part 6 for preventing the outflow of cool air can be reliably formed in the water guide hole 5.

When the lower end side height H2 of the drainage outlet 4 and the upper end side height H1 of the drainage inlet 3 are made equal, the water in which the ice melts becomes the lower end side height H2 of the drainage outlet 4. When it reaches, it flows to the drain outlet 4, but the outflow tip of the water only swells due to surface tension, and does not start flowing out from the drain outlet 4 unless the amount of swelling exceeds the head pressure height due to surface tension. is there. For this reason, the liquid seal portion 6 corresponding to the water head pressure height at which water swells according to the surface tension can be formed in the water introduction hole 5, and the liquid seal portion 6 prevents cold air from flowing out. Can be.

Further, the lower end height H2 of the drain outlet 4 is made lower than the upper end height H1 of the drain inlet 3, and the difference between the lower end height H2 and the upper end height H1 is determined by the drain outlet 4 When the water head pressure height H3 generated by surface tension on the lower end side of the water is not more than H3,
As shown in FIG. 5 , the swelling due to surface tension causes the swelling height to reach the head height H3, and then starts flowing out of the drain outlet 4.
The liquid seal portion 6 corresponding to the water head pressure height H3 at the time of starting outflow from the lower end portion of the container can be formed in the water introduction hole 5, and this liquid seal portion 6 prevents cold air from flowing out of the container body 1. Can be prevented.

Further, the lower end height H2 of the drain outlet 4 is set lower than the upper end height H1 of the drain inlet 3, and a predetermined length extending in the horizontal direction at least at the inlet side of the water introduction hole 5 connected to the drain inlet 3. A water head that is provided with an upper inner surface 7 having a length and that generates a height difference between a lower end side height H2 of the drain outlet 4 and an upper end side height H1 of the drain outlet 3 due to surface tension at the lower end side of the drain outlet 4. The pressure height H3 and the upper inner surface 7
In the case where the height is equal to or less than the total height of the water film thickness due to the surface tension, the tip of the water reaching the lower end of the drain outlet 4 rises due to surface tension, while the water level rises and the upper inner surface 7 rises. , A water film is formed by the surface tension between the upper inner surface 7 and the raised water surface. At this time, the rising height H3 of the water surface and the height corresponding to the thickness of the water film are determined. The liquid seal portion 6 having a total height of the liquid seal portion 6 can be formed in the water guide hole 5.
Thereby, it is possible to prevent cold air from flowing out of the container body 1.

Next, the container body 1 having the side walls 11 and the bottom wall 12 of the heat insulating structure, the drainage inlet 3 opening inward at or near the bottom of the container body 1, the drainage outlet 4 opening outwardly, and A drainage device comprising a water inlet 5 connecting the drainage inlet 3 and the drainage outlet 4, and a liquid seal portion 6 for liquid sealing the drainage inlet 3 and the drainage outlet 4 in the water inlet 5; When manufacturing a container, a drain inlet 3, a drain outlet 4, and a water introduction hole 5 of the drainage device are provided on the back surface of at least one of the male mold 101 and the female mold 102 for molding the container body 1. A molding piece 113 or 114 to be molded is provided, and the male mold 101 and the female mold 10 are provided.
By supplying a molding material into a molding space between the molding pieces 113 and 114, the molding pieces 113 or 114 are formed.
Accordingly, the drainage inlet 3, the drainage outlet 4, and the water introduction hole 5 of the drainage device can be formed at the same time as the container main body 1, and the cool container having the drainage device can be easily manufactured.

The first molding piece 11 for molding the drainage inlet 3 and the inlet side of the water introduction hole 5 is formed on the back surface of the male mold 101.
3 and a drain outlet 4 is provided on the back of the female mold 102.
And a second molding piece 114 for molding the outlet side of the water introduction hole 5 is provided, and a molding material is supplied to a molding space between the male mold 101 and the female mold 102 to mold the container body 1. When the drainage device including the drainage inlet 3, the drainage outlet 4, and the water introduction hole 5 is simultaneously formed by the first and second forming pieces 113 and 114 , the horizontal shape shown in FIGS.
Drain comprising a through hole and a vertical groove opening at one end of the through hole
FIG. 7 shows the apparatus and the bent drainage apparatus shown in FIG. 5 and FIG .
It can be easily produced a cold container having the drainage device shown in-FIG 15.

Further, a container body 1 having a side wall 11 and a bottom wall 12 of a heat insulating structure, a drain port 3 opening inside at the bottom of the container body 1, a drain port 4 opening outside and these drain ports 3 And a drainage device comprising a water guide hole 5 connecting the drainage outlet 4 to the water discharge hole 4, and manufacturing a cold storage container having the water guide hole 5 provided with a liquid sealing portion 6 for liquid sealing the drainage inlet 3 and the drainage outlet 4. When the molded body 8 of the drainage device
When the container body 1 is formed, a fitting hole 81 of the molded body 8 is formed at the bottom of the container body 1. After the container body 1 is formed, the molded body 8 is formed in the fitting hole 81. Can be formed from a material having a higher impact resistance and a higher strength than the heat insulating structure made of the foamed resin constituting the side wall 11, so that the strength of the container body 1 can be increased. Thus, the durability of the drainage device can be improved.

When the drainage device having the liquid seal portion 6 is pierced by a piercing tool after the container body 1 is formed, the drainage device can be freely formed without using a complicated forming device having a forming piece. It is possible to easily process a cold storage container having a drainage device with a shape.

Further, a male mold 10 for molding the container body 1 is provided.
1 and a female mold 102, a mold for molding one of the drainage inlet 3 and the inlet side of the water guide hole 5 and the drainage outlet 4 and the outlet side of the water guide hole 5 in the drainage device. 1
13 or 114, and when the container body 1 is molded, the molding dies 113 or 114 are used to form the drainage inlet 3 and the water inlet 5 of the drainage device, and the drainage outlet 4 is formed.
When one of the drainage device and the outlet side of the water guide hole 5 are simultaneously formed, and the other of the drainage devices is drilled with a piercing tool, the drainage inlet 3 and the inlet side of the water guide hole 5 in the drainage device, and the drainage outlet 4 Further, since it is possible to select a direction in which the water hole 5 is easily drilled with the outlet side, the water hole 5 can be easily formed even when the shape of the water hole 5 is stepped or V-shaped.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a cold storage container according to the present invention.

FIG. 2 is a schematic perspective view in which the cold storage containers shown in FIG. 1 are stacked.

FIG. 3 is an enlarged sectional view of a main part showing a drainage device for the cold storage container shown in FIG. 1;

FIG. 4 is an enlarged sectional view of a main part showing a second embodiment.

FIG. 5 is an enlarged sectional view of a main part showing a third embodiment.

FIG. 6 is an enlarged sectional view of a main part showing a fourth embodiment.

FIG. 7 is an enlarged sectional view of a main part showing a fifth embodiment.

FIG. 8 is an enlarged sectional view of a main part showing a sixth embodiment.

FIG. 9 is an enlarged sectional view of a main part showing a seventh embodiment.

FIG. 10 is an enlarged sectional view of a main part showing an eighth embodiment.

FIG. 11 is an enlarged sectional view of a main part showing a ninth embodiment.

FIG. 12 is an enlarged sectional view of a main part showing a tenth embodiment.

FIG. 13 is an enlarged sectional view of a main part showing an eleventh embodiment.

FIG. 14 is an enlarged sectional view of a main part showing a twelfth embodiment.

FIG. 15 is an enlarged sectional view of a main part showing a thirteenth embodiment.

FIG. 16 is an enlarged sectional view of a main part showing a fourteenth embodiment.

FIG. 17 is an enlarged sectional view of a main part showing a fifteenth embodiment.

FIG. 18 is an enlarged sectional view of a main part showing a sixteenth embodiment.

FIG. 19 is an enlarged sectional view of a main part showing a seventeenth embodiment.

FIG. 20 is an enlarged sectional view of a main part showing an eighteenth embodiment.

FIG. 21 is an enlarged sectional view of a main part showing a nineteenth embodiment.

FIG. 22 is an enlarged sectional view of a main part showing a twentieth embodiment.

FIG. 23 is a schematic sectional view of a molding apparatus for molding a container body.
is there.

FIG. 24 is an enlarged sectional view of a main part of the molding apparatus shown in FIG . 23;
You.

FIG. 25 is an enlarged sectional view of a main part showing another embodiment of the molding apparatus.
It is.

FIG. 26 is a sectional view of a container body showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 3 Drainage inlet 4 Drainage outlet 5 Water guide hole 6 Liquid seal part 7 Upper inner surface 8 Molded body 11 Side wall 12 Bottom wall 81 Fitting hole 101 Male mold 102 Female mold 113 (first) molding piece 114 ( 2) Molding piece H1 Upper end side height H2 Lower end side height H3 Head pressure height

Continuation of front page (56) References JP-A-56-32267 (JP, A) JP-A-3-295621 (JP, A) JP-A-59-16878 (JP, U) JP-A-60-148270 (JP) , U) Actually open Hei 4-45268 (JP, U) Actually open 1975-139103 (JP, U) Actually open 1975-202981 (JP, U) Actually open 1980-96183 (JP, U) Actually open 57-35229 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B65D 81/18 B29C 33/44 B29C 33/76

Claims (10)

(57) [Claims] A heat insulating structure in which a side wall and a bottom wall are integrally formed.
And forming the container body, provided at the bottom or near the bottom of the container the body
It was a cold container and a drainage device, the drainage device, the a drain inlet mouth that opens to the inside of the container the body and the drainage exit opening to the outside, opening out drainage with these drainage inlet mouth It consists of a water guiding hole connecting <br/> and, in the water guide hole, the drainage inlet mouth
Cold container, characterized in that it comprises a liquid sealing unit for liquid sealing and drainage exit with. Wherein the lower end height H2 of the drainage exit, the drainage inlet mouth
2. The cold storage container according to claim 1, wherein the height is higher than an upper end side height H1 of the container. 3. A drainage exit the lower end height H2 and drainage inlet mouth <br/> upper side height H1 and the cold insulating container of the same to the height to which claim 1 wherein the. 4. the lower end height H2 of the drainage exit below <br/> upper end height H1 of the wastewater entering the mouth, the height difference between these lower-side height H2 and the upper end height H1, cold container according to claim 1, characterized in that not more than the water head pressure high of H3 caused by surface tension at the lower end of the drainage exit. With wherein the lower end height H2 of the drainage exit below <br/> upper end height H1 of the wastewater entering the mouth, at least the inlet of the water conducting hole communicating <br/> connection to the waste water inlet mouth on the side, it has a predetermined length upper inner surface of the extending horizontally, the height difference between the upper side height H1 of the lower end height H2 and drainage inlet mouth of the drainage exit,
Wherein the water head pressure high of H3 caused by surface tension at the lower end of the drainage exit, the total cold container height follows to that claim 1, wherein the water film thickness due to the surface tension of definitive to the upper plane. 6. A container having a side wall and a bottom wall of a heat insulating structure.
Body and, the container present of the bottom or the waste water inlet mouth that opens to the inside in the lower portion near connecting the port output drainage opening to the outside 及 beauty these drainage inlet mouth and drainage exit effluent comprising a water guide hole device with the door, said water guide hole in the wastewater entering the mouth and drainage exit method of manufacturing a cold container and a liquid seal portion for the liquid seal, Okatachikin type and female forming said container body metal mold
At least one mold back with drainage <br/> entrance mouth of the drainage device, the first molded piece forming a drainage exit及 beauty water guiding hole or the
2 molded piece arranged, when forming the said container Body by supplying a molding material into the molding space between the Okatachikin type and Mesukatachikin type, the first molded piece and the second molded piece Wherein the drainage device is formed at the same time. 7. The mold back of Okatachikin type, disposed a first molded piece for molding the inlet side of the drainage inlet mouth及 beauty water guide hole, Mesukatachikin type
Of the mold back, it arranged a second mold piece for molding the outlet side of the drainage exit及 beauty water guiding holes, the molding material is supplied to the molding space between the Okatachikin type and Mesukatachikin type Te when molding the containers body, simultaneously molded to have claim 6, wherein the more the drainage drainage device consisting of entrance mouth and the drainage <br/> exit及 beauty water guide holes in the first and second mold piece Of manufacturing cold storage containers. 8. A container having a heat insulating structure having side walls and a bottom wall.
Body and, the container present of the bottom or the waste water inlet mouth that opens to the inside in the lower portion near connecting the port output drainage opening to the outside 及 beauty these drainage inlet mouth and drainage exit effluent comprising a water guide hole device with the door, said water guide hole in the wastewater entering the mouth and drainage exit method of manufacturing a cold container and a liquid seal portion for the liquid seal, provided with a molded body of the drainage device, the container present during molding of the body, by forming a fitting hole of the compact at the bottom of the container the body, said after molding of the container the body, fitted in front <br/> Symbol molded body into the fitting hole coupling A method for producing a cold storage container. 9. A container having a side wall and a bottom wall of a heat insulating structure.
Body and, the container present of the bottom or the waste water inlet mouth that opens to the inside in the lower portion near connecting the port output drainage opening to the outside 及 beauty these drainage inlet mouth and drainage exit effluent comprising a water guide hole device with the door, said water guide hole in the wastewater entering the mouth and drainage exit method of manufacturing a cold container and a liquid seal portion for the liquid seal, after forming the container the body, the liquid seal section
A method for producing a cold storage container, comprising: perforating the drainage device having a hole with a piercing tool. A container <br/> Main body having a side wall and bottom wall of 10. heat insulating structure, and the waste water inlet mouth that opens on the inner side in the bottom or lower portion near the container the body, leaving the drainage opening to the outside cold that is provided with a liquid seal portion comprises a drain device and comprising a mouth及 beauty water guiding hole connecting with these drainage inlet mouth and drainage exit, said drainage liquid sealing the inlet mouth and drainage exit the water guide hole a method of manufacturing a container, Okatachikin type for molding the container the body and Mesukatachikin
At the back of one mold with the mold,
When the inlet side of the mouth及 beauty water guide hole, which is disposed the first molded piece and the second molded piece forming one of the outlet side of the drainage exit及 beauty water guide holes, molding the container the body, the The first molding piece or
After simultaneously molding the inlet side of the drainage inlet mouth及 beauty water guiding holes, one of the outlet side of the drainage exit及 beauty water conducting hole in the drainage device by the second molding piece, perforated by piercer the other of said drainage device A method for producing a cool container characterized by processing.