JP2559981B2 - Cold storage container and manufacturing method thereof - 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. The present invention relates to a cold insulation container in which an object is kept cold with the ice and a method for manufacturing the same.

[0002]

2. Description of the Related Art Heretofore, in this type of cold storage container, a container body having a side wall and a bottom wall is made of, for example, foamed resin to have a heat insulating structure, and a container such as fresh fish is stored in the container body together with ice. Along with the lid plate, fresh fish is kept cold for a long time.

By the way, the ice filled with the fresh fish is melted with the passage of time, and the fresh fish is immersed in the water in which the ice is melted. Therefore, it is necessary to drain the water melted from the container body.
For this reason, for example, a drainage device including a drainage hole penetrating in the vertical direction is provided on the bottom wall, and water accumulated in the container body is drained through the drainage hole.

However, because of space limitations, the container bodies containing fresh fish are often used by stacking in a plurality of stages. As described above, the vertical drain holes are provided in the bottom wall of each container body. When stacked, the drain holes of the container body located at the top are closed by the lid plate of the container body located at the bottom, and it is necessary to provide a drainage guide groove or a gap on the upper surface of the lid plate. When stacking a plurality of stages without providing the lid plate, the water drained from the container body located at the upper part will flow into the container body located at the lower part, and containers other than the container body stacked at the uppermost part. This means that the fresh fish stored in the main body cannot be kept in good condition.

In order to solve such a problem, horizontal drainage holes are provided on the side wall of the container body, and FIG.
As shown in 0, the side wall A and the bottom wall B of the container body C
A drainage hole E is formed in the corner of and at the same time as the container body C,
When the container main body C is used in a laminated state, the water drained from the drainage hole E of the container main body C located above is
The dissolved water generated in the container body C merges with the side wall of the lower container body C, and sequentially flows toward the lower container body C for drainage.

[0006]

However, in the conventional cold storage container configured as described above, the drain hole E is
In order to completely drain the water inside,
The outlet of the drainage hole E is below the inlet so that water flows.
It has a structure located, that is, the drainage hole E is provided in order to prevent the contained object is flooded, located at the bottom of the container body C, and the waste water inlet from the outlet
Since the whole surface is open downward toward the outside of the container body C so as to be located above, the cold air cooled by ice and having a higher specific gravity after the dissolved water is discharged to the outside of the container C also exhibits a cooling effect. The cool air is discharged to the outside from the bottom drainage hole E of the main body C, and warm outside air is sequentially drawn into the container main body C from the gap between the upper portion of the container main body C and the cover plate D.
Murrell so-called convection there is a defect that occurs.

As a result, not only is the heat insulation of the contained object insufficient, but also the ice is rapidly melted due to the convection phenomenon in the container main body C , and the ice consumption increases. There is a problem that the fish cannot be held for a long time, and that the convection phenomenon causes the fresh fish that is the object to be contained to be dried or oxidized, and that the smell of the fresh fish leaks to the outside of the container body C. there were.

Therefore, the present invention has been made to solve the above problems, and its main purpose is to provide a simple structure.
It is possible to prevent cold air from flowing out while being able to drain water from the container body, and yet to provide a cold storage container that facilitates drilling of a drainage device when molding the container body. Another object of the present invention is to provide a manufacturing method capable of easily forming a cold insulation container having the drainage device .

[0009]

In order to achieve the above object, in the invention described in claim 1, a container body 1 having a side wall 11 and a bottom wall 12 of a heat insulating structure, and a bottom portion or a bottom portion of the container body 1. The container body 1 having a drainage device provided in the vicinity thereof
In the cold storage container, which is filled with ice together with the object to be contained, and cools the object to be contained by the ice, the drainage device,
Inside the container body 1 below the side wall 11 of the container body 1.
It comprises a drainage inlet 3 to be opened, a drainage outlet 4 to be opened to the outside of the container body 1, and a water guiding hole 5 connecting the drainage inlet 3 and the draining outlet 4, and the water guiding hole 5 is formed into a straight line ,
Lower end position H2 of the drainage outlet 4, the drainage inlet 3 as located at the upper end level H1 above the height of the drainage inlet 3
Towards the drainage outlet 4 is inclined obliquely upward, the water guide hole 5, than is provided with a liquid seal portion 6 for the liquid sealed to the drainage outlet 4 the drainage inlet 3.

According to the second aspect of the present invention, the container body 1 having the side wall 11 and the bottom wall 12 of the heat insulating structure, and the lower side wall 11 of the container body 1 is opened into the container body 1. It is composed of a drainage inlet 3, a drainage outlet 4 opened to the outside of the container body 1 and a water guiding hole 5 connecting the drainage inlet 3 and the drainage outlet 4. The water guiding hole 5 is formed into a straight line, and The lower end position H2 is the upper end position H1 of the drainage inlet 3.
Drainage from the drainage inlet 3 as it is located at the above height
When manufacturing a cold insulation container having a drainage device that is inclined obliquely upward toward the mouth 4 and has a liquid seal portion 6 that liquid-seals the drainage inlet 3 to the drainage outlet 4 in the water guide hole 5. Is a male mold 10 that forms the container body 1.
1 and at least one of the female mold 102 on the mold back surface,
A molding piece 114 for molding the drainage inlet 3, the drainage outlet 4, and the water guide hole 5 of the drainage device is provided, and the male mold 10 is provided.
1 and the female die 102, a molding material is supplied to a molding space between the molding die 114 and the female mold 102 to mold the container body 1.
Is pushed into the molding space, the drainage device is simultaneously molded by the molding piece 114, and after the container body 1 is cooled, the molding piece 114 is extracted before the container body 1 is released.

Further, according to the third aspect of the present invention, the container body 1 having the side wall 11 and the bottom wall 12 of the heat insulating structure, and the lower side wall 11 of the container body 1 is opened into the container body 1.
A drain inlet 3 that the drainage outlet 4 for opening the container body 1 outside
And a water guiding hole 5 that connects the drainage inlet 3 and the drainage outlet 4, the water guiding hole 5 is a straight line, and the lower end position H2 of the drainage outlet 4 is the upper end position H of the drainage inlet 3.
Drainage from the drainage inlet 3 as it is located at a height of 1 or more
When manufacturing a cold insulation container provided with a drainage device that is inclined obliquely upward toward the outlet 4 and has a liquid seal portion 6 that liquid-seals the drainage inlet 3 to the drainage outlet 4 in the water guide hole 5. After the container body 1 is molded, the drainage device having the liquid seal portion 6 is perforated by a perforating tool.

[0012]

[Action] In the first aspect of the present invention, when the cold accommodating the contained object to the container body 1, when Ru ice melts to fill with contained object, the water flows to the drainage inlet 3 straight
The water flows out from the drainage outlet 4 to the outside of the container main body 1 through the water guiding hole 5 of the wire .
The drainage inlet 3 as the lower end position H2 of the drainage outlet 4, located at the upper end level H1 above the height of the drainage inlet 3
Since the water guiding hole 5 is formed by inclining upward from the drainage outlet 4 to the drainage outlet 4 , the water in the container body 1 is drained.
It collects in the water guide hole 5 until it reaches the lower end position H2 of the outlet 4.
Therefore, it does not flow out of the container main body 1 and the lower end position H2
When it gets too high, it will be drained.

[0013] Consequently, when the water in the container body 1 became the upper level H1 above the height of the drainage inlet 3, drainage
The inlet 3 is closed with water, and the lower end position H2 of the drain outlet 4 is
And the uppermost position H1 of the drainage inlet 3 between the water guiding hole 5
Since the liquid seal portion 6 is formed inside the liquid, the liquid seal portion 6 causes the drain inlet 3 to be drained from the drain outlet 4.
Sealed to reliably seal the cool air inside the container body 1,
Only water with melted ice flows out from the water guide hole 5 and cold air cannot pass therethrough, and it is possible to reliably prevent the cool air from flowing out of the container body 1.

Therefore, since the cool air is not discharged , the convection phenomenon does not occur in the container body 1, so that the temperature rise in the container body 1 is suppressed and the ice for cooling is prevented from melting faster than the conventional example. Further, 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 object such as fresh fish can be reduced.

From the above, it is easy to form the water guiding hole 5.
As a straight line, the inclination angle of the water guiding hole 5 and the drainage inlet 3
The positional relationship of the drainage outlet 4 with respect to the
The drainage device provided with the liquid seal portion 6 can be easily
It is easy to form, and this simple structure
By the liquid seal portion 6 consisting formed to save consumption of ice for cold storage can be kept longer the cold effect to be miniaturized as compared with the container body 1 with the prior art, also, fish Since the odor of (1) does not flow out of the container body 1, the environment around the container body 1 can be maintained well.

According to the second aspect of the present invention, the container body 1 having the side wall 11 and the bottom wall 12 of the heat insulating structure, and the side wall 11 of the container body 1 is opened inside the container body 1. It is composed of a drainage inlet 3, a drainage outlet 4 opened to the outside of the container body 1 and a water guiding hole 5 connecting the drainage inlet 3 and the drainage outlet 4. The water guiding hole 5 is formed into a straight line, and The lower end position H2 is the upper end position H1 of the drainage inlet 3.
Drainage from the drainage inlet 3 as it is located at the above height
When manufacturing a cold insulation container having a drainage device that is inclined obliquely upward toward the mouth 4 and has a liquid seal portion 6 that liquid-seals the drainage inlet 3 to the drainage outlet 4 in the water guide hole 5. Is a male mold 10 that forms the container body 1.
1 and at least one of the female mold 102 on the mold back surface,
A molding piece 114 for molding the drainage inlet 3, the drainage outlet 4, and the water guide hole 5 of the drainage device is provided, and the male mold 10 is provided.
1 and the female die 102, a molding material is supplied to a molding space between the molding die 114 and the female mold 102 to mold the container body 1.
Is pushed into the molding space, the drainage device is simultaneously molded by the molding piece 114, and after the container body 1 is cooled, the molding piece 114 is pulled out before the mold release of the container body 1. By the molding piece 114, the drainage inlet 3, the drainage outlet 4, and the water guide hole 5 of the drainage device can be molded at the same time as the container body 1, and a cold container having the drainage device can be easily manufactured.

Furthermore, when the container body 1 is molded and then the drainage device having the liquid sealing portion 6 is perforated by a perforating tool as in the third aspect of the present invention , a molding piece is provided. kill is possible to easily process the cold container having a Ku wastewater device using a complicated molding apparatus.

[0018]

EXAMPLE As shown in FIG. 1, a cold-insulating container used by stacking in a plurality of stages as shown in FIG. 2 is a box-shaped article having a heat insulating structure formed by foaming a foamed resin, for example. A container body 1 composed of a side wall 11 and a bottom wall 12 of a heat insulating structure,
The container main body 1 is provided with a lid plate 2 for closing the upper open portion thereof, and a drainage device formed of a through hole is provided in the lower portion of the side wall 11, and in the container main body 1, fresh fish or the like is stored as an object to be stored. Ice for cooling is filled, the fresh fish is stored while being cooled, and the water in which the ice is melted is drained from the container body 1 through the drainage device.
In addition, when a plurality of container main bodies 1 are stacked as shown in FIG. 2, the lid 2 is provided on each container main body 1 other than the uppermost one.
May not be provided.

Therefore, in the present invention, the drainage device is
Inside the container body 1 below the side wall 11 of the container body 1.
The drainage inlet 3 is opened, the drainage outlet 4 is opened to the outside of the container body 1 , and the water guiding hole 5 that connects the drainage inlet 3 and the drainage outlet 4 is formed.
Together to, as a lower end position H2 of the drainage outlet 4 is located at the upper end level H1 above the height of the drainage inlet 3 wherein
Inclined obliquely upward from drainage inlet 3 to drainage outlet 4.
The drainage inlet 3 into the drainage outlet 4 in the water guiding hole 5.
The liquid seal portion 6 for sealing the liquid against the liquid is provided.

That is, as shown in a partially enlarged view in FIG. 3, a concave groove 13 is provided in the peripheral portion of the bottom wall 12 inside the container body 1 and outside the lower portion of the side wall 11. A drainage closing prevention concave portion 14 is provided at a portion where the drainage outlet 4 opens so that drainage can be performed even when the side walls are in close contact with each other, and the side wall 11 near the bottom wall 12 has the container body. 1 open inside, and
The drainage inlet 3 having the upper end side end portion A1 and the lower end side end portion A2, and the drainage outlet 4 having the upper end side end portion C1 and the lower end side end portion C2 which are open to the drainage closing prevention concave portion 14 and The drainage device including the water guiding hole 5 connecting the drainage inlet 3 and the drainage outlet 4 is provided, and the water guiding hole 5 is arranged so that the drainage outlet 4 side is higher than the drainage inlet 3 side.
Is formed in a straight line and in an inclined shape, and the height of the lower end side end portion C2 of the drainage outlet 4 from the lower end portion of the bottom wall 12, that is, the lower end position H2 of the drainage outlet 4 is The height of the upper end A1 of the drainage inlet 3 from the lower end of the bottom wall 12, that is, the upper end position H of the drainage inlet 3.
It should be higher than 1.

When draining the ice-melted water through the water guiding hole 5, the height difference between the lower end position H2 of the drainage outlet 4 and the upper end position H1 of the drainage inlet 3 is introduced into the water guiding hole 5. The liquid seal portion 6 having a height corresponding to
Therefore, it can be formed as shown by the dotted line.

Thus, the container body 1 is filled with fresh fish and is filled with ice for keeping cold, and the lid plate 2 is provided on the upper part of the container body 1 to keep the fresh fish cold. Until the water reaches the upper end A1 of the drainage inlet 3, the cold air in the container body 1 flows out of the drainage outlet 4 to the outside of the container body 1, but the water level of the melted water is the drainage inlet. When the height is higher than the upper end position H1 of 3, the liquid seal portion 6 is formed in the water guide hole 5, and the drain outlet 4 is liquid sealed to the drain inlet 3 by the liquid seal portion 6. . Therefore , the water in the container body 1
Although the water is drained when it goes beyond the lower end position H2 of the drainage outlet 4, the cold air in the container body 1 is blocked by the liquid seal portion 6 and the cold air can be prevented from flowing out of the container body 1.

Therefore, since the cool air is not discharged as described above, the convection phenomenon of the air in the container body 1 does not occur, and the ice for cooling can be prevented from melting faster than in the conventional example. It is also possible to reduce the drying and oxidation of the contained matter such as fresh fish caused by the air flow due to the convection phenomenon. As a result, the amount of ice used for keeping cold can be saved and the effect of keeping cold can be maintained for a long time. Further, since the amount of ice used can be reduced, the container body 1 can be made smaller than the conventional one. Also, 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 in a good condition.

Further, since the water guiding hole 5 is formed as a straight and oblique hole, the processing for forming the hole can be carried out on the straight axis, which facilitates the processing.

Further, since the drainage outlet 4 is provided in the drainage closing prevention recess 14, even when a plurality of container bodies 1 are stacked adjacent to each other, the drainage outlet 4 is adjacent to another container body. Since it is not closed by the side wall 11 of 1, the drainage from the drainage outlet 4 is not blocked, and the drainage device is inclined so that the drainage outlet 4 is higher than the drainage inlet 3. Because
When the water in the container body 1 is lower than the drainage inlet 3 in the initial stage of the formation of the liquid seal portion 6, the cold air having a large specific gravity, which tends to flow downward, becomes a conventional one having a horizontal drainage hole. In comparison, the amount of cold air flowing out of the container body 1 can be reduced.

Further, when the position H2 of the lower end C2 of the drainage outlet 4 is made lower than the height of the upper surface of the bottom wall 12, the ice-melted water is stored in the concave groove 13 and the bottom wall Before reaching the upper surface of 12, the water can be drained from the drain outlet 4 through the water guide hole 5, so that the fresh fish can be prevented from being immersed in the water, and the fish can be kept cool in a good state.

In the embodiment shown in FIG. 3, the lower end position H2 of the drainage outlet 4 is replaced with the upper end position H of the drainage inlet 3.
Although it is higher than 1, the lower end position H2 of the drainage outlet 4,
It goes without saying that the upper end position H1 of the drainage inlet 3 may have the same height.

In this case, the ice-melted water is the drain outlet 4
When reaching the lower end position H2 of the water, the water reaches the lower end side end portion C2 of the drainage outlet 4, but due to surface tension, the lower end side end portion C2.
The tip of the water that has reached is only swelling, and unless the amount of swelling exceeds the head pressure height due to surface tension, the water does not start flowing out from the lower end C2. Therefore, the liquid seal portion 6 corresponding to the height of the water head pressure at which water rises according to the surface tension is formed in the water guide hole 5. Therefore, the liquid seal portion 6 can prevent cold air from flowing out of the container body 1.

As shown in FIG. 4, the drainage device is provided with a fitting hole 81 near the bottom of the side wall 11 of the container body 1 for fitting the molded body 8 made of a tube having open ends. The one end opening of the molded body 8 fitted into the fitting hole 81 and opening into the container body 1 is used as the drainage inlet 3, and the drainage closing prevention recess 14 is formed.
The other end opening to the bottom of the drainage outlet 4 is used as the drainage outlet 4, and the water guiding hole 5 is formed over the entire length of the molded body 8. On the other hand, the lower end position H2 of the drainage outlet 4 is located at the drainage inlet 3 as in FIG. Above the upper end position H1 of the water, and water with ice melted
When draining through the water guide hole 5, the liquid seal portion 6 having a height corresponding to the height difference between the lower end position H2 of the drainage outlet 4 and the upper end position H1 of the drainage inlet 3, in the water guide hole 5,
It may be formed as shown by the dotted line.

In this case, the molded body 8 can be formed of a material having a higher impact resistance and a stronger strength than the heat insulating structure made of the foamed resin forming the side wall 11, which enhances the strength of the container body 1, and accordingly The durability of the drainage device can be improved.

Further, the drainage device may be formed as shown in FIGS. First, in the drainage device shown in FIG. 5, when the container body 1 is stacked on the end portion of the outer surface of the bottom wall 12 on the side wall 11 side, drainage can be performed even if the side walls 11 are in close contact with each other in the vertical direction. And a sloped hole 20 having a straight axis line which is open to the inside and the outside of the side wall 11 and inclines so that the outside opening is higher than the inside opening, and the inclined hole 20. A vertical hole 21 that opens in the middle of 20 and the drainage closing prevention recess 15 provided below the bottom wall 12 is provided, and the opening of the inclined hole 20 that opens inside the container body 1 is defined as the drainage inlet 3 In addition, the communication part of the inclined hole 20 to the opening of the vertical hole 21 is defined as the drainage outlet 4, and the drainage inlet 3 to the drainage outlet 4 in the inclined hole 20.
The portion leading to is the water guide hole 5.

The embodiment shown in FIG. 5 is different from the embodiment shown in FIG. 3 in that the lower end position H2 of the drain outlet 4 is set.
When the vertical hole 21 is opened in the inclined hole 20 so that the upper end position H1 of the drainage inlet 3 is at the same height and the drainage is performed from the drainage outlet 4 through the vertical hole 21, The liquid seal portion 6 is formed in the water guide hole 5 as shown by the dotted line.

In the drainage device shown in FIG. 6, when the container main body 1 is stacked on the end portion of the bottom wall 12 on the side wall 11 side, the side walls 11 can be drained even if the side walls 11 are in close contact with each other in the vertical direction. The drainage closing prevention concave portion 15 is provided, one end portion is opened to the inside of the side wall 11 and the other end portion is closed, and the closing side end portion has a straight axis line that is inclined as the height becomes higher than the inner opening portion. The inclined hole 22 and the inclined hole 22
And a vertical hole 21 that opens to the drainage closing prevention concave portion 15 provided below the bottom wall 12 and the inside of the side wall 11 of the inclined hole 22 is formed into the drainage inlet 3 with a, a communicating portion to the opening of the longitudinal hole 21 in the inclined hole 2 2 and the drainage outlet 4, the drainage outlet 4 from the waste water inlet 3 in the inclined hole 22
The portion leading to is the water guide hole 5.

Further, the embodiment shown in FIG. 6, the lower end position H2 in the same manner the drainage outlet 4 in the embodiment shown in FIG. 3
However, the vertical hole 21 is opened in the inclined hole 20 so as to be higher than the upper end position H1 in the drainage inlet 3,
When draining from the drainage outlet 4 through the vertical hole 21,
In the water guide hole 5, the liquid seal portion 6 having a height corresponding to the height difference between the lower end position H2 of the drainage outlet 4 and the upper end position H1 of the drainage inlet 3 is formed.

In the embodiment shown in FIG. 7, the side wall 11 is provided with
An inclined hole 24 is formed which is open to the inside and the outside of the side wall 11 and has a straight axis which inclines as the outside opening becomes higher than the inside opening, and the outside of the side wall 11 is provided with the inclined hole 24. A vertical groove 23 extending downward from the outer opening of the inclined hole 24 is formed, and the opening opening to the inside of the side wall 11 of the inclined hole 24 serves as the drainage inlet 3, and the inclined hole 24 extends to the vertical groove 23. The opening is the drainage outlet 4. In this case, since the drainage can be compensated by the vertical groove 23, the drainage closing prevention recess 14 provided on the outer side of the side wall 11 and the drainage closing prevention recess 15 provided on the bottom wall 12 of the container body 1 are not required as described above.

Further, in FIG. 7, as in FIG. 3, the lower end position H2 at the drainage outlet 4 is made higher than the upper end position H1 at the drainage inlet 3, and drainage is performed from the drainage outlet 4 through the vertical groove 23. At this time, the liquid having a height corresponding to the height difference between the lower end position H2 of the drainage outlet 4 and the upper end position H1 of the drainage inlet 3 in the water guiding hole 5 extending from the drainage inlet 3 to the drainage outlet 4. The seal portion 6 is formed.

Next, description will be made of a case where a cold storage container having a drainage device as shown in FIG. 3 is manufactured by using the molding device shown in FIG. The molding apparatus shown in FIG. 8 includes a male mold 101 and a female mold 102 for molding the container body 1. The male mold 101 is attached to a movable male frame 103 and a mounting plate 104. Is installed through. Further, the female mold 102 is attached to a stationary female frame 105 via a mounting plate 106, and inside the male and female frames 103, 105, a male mold capable of selectively injecting steam and water and Female heating / cooling chamber 107,
108 are provided respectively.

Then, the female die 1 of the male die 101
When the container body 1 is molded from a foaming resin such as polystyrene or polyolefin, a molding space 110 is formed between the molds 101 and 102 by the close movement to the mold 02.
It is formed as shown in FIG. Incidentally, 111
Is a feeder for supplying a foamable resin material such as polystyrene or polyolefin to the molding space 110,
Further, 112 is a knock pin for pushing out the container body 1 molded in the molding space 110 from the female mold 102.

Further, the female mold 102 is provided with a holder 116 for reciprocatingly holding a molding piece 114 for molding the drainage inlet 3, drainage outlet 4 and water guide hole 5 of the drainage device, and An air cylinder 117 is attached to the rear side of the shape heating / cooling chamber 108 via a hollow member 119 that movably accommodates a piston 118 of the cylinder 117. Then, by using a push-pull type flexible operation cable 122 composed of an inner cable 120 and an outer cylinder 121, the molding piece 114 is interlocked with the reciprocating motion of the piston 118 with respect to the molding space 110. I am able to move forward and backward. That is, as shown in the enlarged view of FIG. 9, the female die 1 of the outer cylinder 121 is shown.
The end portion on the 02 side is connected to the holder 116 provided on the female mold 102, and the inner cable 120
While the end of the female mold 102 on the side of the female mold 102 is connected to the molding piece 114, the end of the outer cylinder 121 on the side of the cylinder 117 is connected to the female heating / cooling chamber 10 as shown in FIG.
8 is fixed to the back plate 123 and the end of the inner cable 120 on the cylinder 117 side is the hollow member 1
It is made to plunge into 19 and is connected to the piston 118.

Therefore, the drainage inlet 3, the drainage outlet 4 and the water guide 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 die 10
1 is brought close to the female mold 102, and the respective molds 101, 10
After forming the molding space 110 between the two, the piston 118 moves to move the molding piece 114 from the holder 116 to the molding space 110 via the inner cable 120 as shown in FIGS. 8 and 9. It is made to plunge into, and the plunge tip is brought into contact with the male die 101.

Then, in a state where the molding piece 114 is projected into the molding space 110, a foaming resin is supplied to the molding space 110 from the feeder 111, and steam is injected into the heating / cooling chambers 107 and 108. By doing so, the foamable resin is foamed in the molding space 110. Further, after the foaming is completed, water is sent into the heating / cooling chambers 107 and 108 to cool the container body 1 molded in the molding space 110, thereby completing the molding. Further, after the molding is completed, the molding piece 11 is moved by the movement of the piston 118.
4 is retracted from the molding space 110 into the holder 116, and the male die 101 is moved to the female die 1
02, the container body 1 molded by the projecting movement of the knock pin 112 is attached to the female mold 10.
Take out from 2.

As described above, by using the molding apparatus in which the molding piece 114 is moved forward and backward with respect to the molding space 110, the drainage inlet 3 of the drainage device is moved by moving the molding piece 114 forward and backward with respect to the molding space 110. , Drainage outlet 4
Also, the water guide hole 5 can be formed at the same time as the container body 1, and a cold container having the drainage device can be easily manufactured.

In the molding apparatus shown in FIG. 8, the molding piece 114 is provided on the female die 102 side, but it goes without saying that it may be provided on the male die 101 side. Further, although the push-pull type operation cable is used, a pull type operation cable may be used by using, for example, a spring for urging the molding piece 114 into the molding space 110. A driving device such as an air cylinder may be provided near each holder 116 so that the molding piece 114 can be directly moved by this driving device.

Further, in FIG. 8 and FIG. 9, the molding piece 11 is
The case where 4 is provided only on the back side of the female mold 102 to manufacture the cold insulation container having the drainage device has been described. However, by using the two molding pieces 114, two molding pieces are respectively provided. By placing it in the position,
And a vertical hole 21 extending vertically as shown in FIG.
As shown in FIG. 7, the drainage device having the vertical groove 23,
It can be formed at the same time when the container body 1 is formed, so that the cold storage container can be easily manufactured.

Further, in the case of manufacturing a cold insulation container having a drainage device as shown in FIG. 3, a drill or a punching tool such as a heated nichrome wire is used without using the molding device shown in FIG. Perforation may be performed near the bottom wall 12 of the side wall 11 of the container body 1.

In the case of manufacturing a cold insulation container having a molded body 8 made of the tube whose both ends are open as shown in FIG. 4, the molded body 8 made of a tube is provided to mold the container body 1. At this time, even if the fitting hole 81 of the molded body 8 is molded in the lower portion of the container body 1, and after the molding of the container body 1, the molded body 8 is fitted into the fitting hole 81 to be joined. It's good. In this case, the molded body 8 can be made of a material having a higher impact resistance and a stronger strength than the heat insulating structure made of the foamed resin forming the side wall 11, so that the strength of the container body 1 is increased. When the container body 1 is molded, the molded body 8 is molded into the molding space 110 so that the molded body 8 is separated from the operation cable 122 after the container body 1 is molded. The molded body 8 may be embedded and molded by, and the molded body 8 may be formed by molding after the container body 1 is molded, as compared with the case where the molded body 8 is fitted into the fitting hole 81. It can be easily provided on the side wall 11.

When manufacturing a cool container having a drainage device as shown in FIG. 3 by using, for example, the molding device shown in FIG. 8, the back surface of the female mold 102 for molding the container body 1 is formed. The molding piece 114 for molding the drainage outlet 4 and the outlet side of the water guide hole 5 in the drainage device is provided.
4, the outlet side of the drainage outlet 4 and the outlet side of the water guide hole 5 in the drainage device may be formed at the same time, and then the inlet side of the drainage inlet 3 and the water guide hole 5 of the drainage device may be perforated by a punching tool. Further, a molding piece for molding the inlet side of the drainage inlet 3 and the water guide hole 5 in the drainage device is arranged on the back surface of the male mold 101 for molding the container body 1, and the molding piece is used to form the molding piece in the drainage device. After forming the drainage inlet 3 and the inlet side of the water guiding hole 5 at the same time, the inlet side of the drainage outlet 4 and the water guiding hole 5 of the drainage device may be perforated by a drilling tool such as a drill.

[0048]

As described above, according to the first aspect of the invention,
According to Ming, the water guide hole 5 is constructed as a straight line that is easy to form.
The container body 1 can be easily formed and easily processed.
The water inside has a height higher than the upper end position H1 of the drainage inlet 3.
Liquid sealing part 6 is formed inside the water guide hole 5 when
Te, drainage outlet to the drainage inlet 3 by the liquid seal portion 6
4 can be liquid-sealed to reliably seal the cool air in the container body 1. Therefore, it is possible to surely prevent the cool air from flowing out of the container body 1 by allowing only the melted water to pass through the water guiding hole 5. it can.

[0049] Therefore, prevention from not discharged cold air, the Ino such cause convection phenomenon in the container body 1, the ice for cold suppressed temperature rise in the container body 1 that dissolves faster than the prior art Moreover, since the convection phenomenon does not occur, the air flow in each container body 1 can be almost eliminated, and the drying or oxidation of the contained object such as fresh fish can be reduced.

From the above, it is easy to form the water guiding hole 5.
As a straight line, the inclination angle of the water guiding hole 5 and the drainage inlet 3
The positional relationship of the drainage outlet 4 with respect to
With a simple structure, the drainage device including the liquid seal portion 6
In addition, it can be easily processed, and
In the liquid seal portion 6 consisting of a simple structure, to save consumption of ice for cold storage it can be kept longer the cold effect,
The container body 1 can be made smaller than the conventional one, and the odor of fresh fish does not flow out of the container body 1 by the liquid sealing portion 6 , so that the environment around the container body 1 can be maintained well. it can.

Next, according to the second aspect of the invention, the drainage inlet 3 and the drainage outlet 4 of the drainage device are formed by the molding piece 114.
Also, the water guide hole 5 can be formed at the same time as the container body 1, and the cold storage container having the drainage device can be easily manufactured.

According to the third aspect of the present invention, since the container body 1 is molded and then the drainage device having the liquid sealing portion 6 is perforated by a perforating tool , a complicated molding piece is provided. it is wear easily processed Ku cold container having a wastewater apparatus using the Do forming apparatus.

[Brief description of drawings]

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

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

FIG. 3 is an enlarged cross-sectional view of an essential part showing a drainage device of the cold insulation container shown in FIG.

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

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

FIG. 6 is an enlarged cross-sectional view of an essential part showing a fourth embodiment.

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

FIG. 8 is a schematic cross-sectional view of a molding device that molds a container body.

9 is an enlarged cross-sectional view of a main part of the molding apparatus shown in FIG.

FIG. 10 is a cross-sectional view of a container body showing a conventional example.

[Explanation of symbols]

1 container body 3 wastewater inlet 4 drainage outlet 5 water guide hole 6 liquid sealing unit 11 side wall 12 bottom wall 101 Okatachikin type 102 female die 114 molded piece H1 upper position H2 lower end position

Claims (3)

(57) [Claims] 1. A side wall (11) and a bottom wall (12) of a heat insulating structure.
A container main body (1) having the above and a drainage device provided at or near the bottom of the container main body (1), the container main body (1) is filled with ice together with an object to be contained, and the container is contained by the ice. A cool container for cooling an object, wherein the drainage device is provided under a side wall (11) of the container body (1).
Drainage inlet (3) that opens into the container body (1) in the section
And a drain outlet (4) open to the outside of the container body (1) ,
It is composed of a water guiding hole (5) connecting the drainage inlet (3) and the drainage outlet (4), and when the water guiding hole (5) is formed as a straight line.
In addition, the lower end position (H2) of the drainage outlet (4) is located at a height higher than the upper end position (H1) of the drainage inlet (3) .
From the drainage inlet (3) to the drainage outlet (4)
Is inclined obliquely upward I, wherein the water guide holes (5) in, cold container which characterized in that it comprises a liquid sealing unit for a liquid seal (6) with respect to the drainage outlet to the drainage inlet (3) (4) . 2. A side wall (11) and a bottom wall (12) of a heat insulating structure.
And a side wall of the container body (1)
(11) In the lower part, a drainage inlet (3) that opens inside the container body (1), a drainage outlet (4) that opens outside the container body (1 ), and these drainage inlet (3) and drainage outlet (4) It is composed of a water guiding hole (5) that connects the water guiding hole (5) and a straight line
And the lower end position (H2) of the drain outlet (4)
Is higher than the upper end position (H1) of the drainage inlet (3)
Located from the drainage inlet (3) to the drainage outlet
(4) is inclined obliquely upward toward the the water guide holes (5) in the drainage inlet (3) drainage outlet (4) in pairs
A method for manufacturing a cold insulation container comprising a drainage device having a liquid sealing portion (6) for sealing liquid, comprising a male mold (101) and a female mold (that form the container body (1). 102), the drainage inlet (3), the drainage outlet (4), and the drainage outlet (4) of the drainage device, and
A molding piece (114) for molding the water guide 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 form the container body. When molding (1), the molding piece (114) is pushed into the molding space, the drainage device is simultaneously molded by the molding piece (114), and the molding piece is cooled after the container body (1) is cooled. A method for manufacturing a cold-insulating container, characterized in that (114) is extracted before releasing the container body (1). 3. Side wall (11) and bottom wall (12) of a heat insulating structure.
And a side wall of the container body (1)
(11) In the lower part, a drainage inlet (3) that opens inside the container body (1), a drainage outlet (4) that opens outside the container body (1 ), and these drainage inlet (3) and drainage outlet (4) It is composed of a water guiding hole (5) that connects the water guiding hole (5) and a straight line
And the lower end position (H2) of the drain outlet (4)
Is higher than the upper end position (H1) of the drainage inlet (3)
Located from the drainage inlet (3) to the drainage outlet
(4) is inclined obliquely upward toward the the water guide holes (5) in the drainage inlet (3) drainage outlet (4) in pairs
A method for manufacturing a cool container provided with a drainage device having a liquid sealing part (6) for sealing liquid, comprising the step of molding the container body (1) and then having the liquid sealing part (6). A method for manufacturing a cold insulation container, characterized in that the drainage device is perforated by a perforation tool.