JP3348360B2 - Foaming container for freezing and cooling - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foaming container for refrigeration / cooling, and more particularly, to freezing a frozen object in a state where the object is stored in a foaming container, or a refrigeration container for cooling and storing a precooled object to be cooled. The present invention relates to a foam container for cooling.

[0002]

2. Description of the Related Art In recent years, foam containers made of foam resin have been used for transportation of fresh foods such as fresh fish and fruits and vegetables in terms of lightness, heat insulation and supply stability. Has come to be used in large numbers. In particular, in the transportation of fresh food products, fresh food products are preferably frozen or cooled to a low temperature in order to maintain freshness, and it is preferable to transport them while maintaining their state. Excellent foam containers are used.

Here, a description will be given of a foaming container used to transport frozen fresh fish. As shown in FIG. 10 , an example of the foamed container is composed of a plurality of container bodies 3 in which a bottom 1 and a side wall 2 are integrally formed of a foamed resin, and a lid (not shown). The container bodies 3 in the lower tier are hermetically closed by stacking the container bodies 3 of the same type, and the container main body 3 in the uppermost tier can be hermetically sealed with a lid. Put freshly frozen fish 4 in the container body 3 or put fresh fish 4 in the container body 3 and freeze and freeze the fresh fish 4 in them. Was. By the way, when the fresh fish 4 is thawed in the container main body 3 or when the fresh fresh fish 4 is put in the container main body 3, a drip such as blood juice flows out from the fresh fish 4 into the container main body 3, or the fresh fish 4 Since the drainage or the like adhering to the container accumulates in the container body 3, an adsorbent 5 made of a water-absorbing polymer or the like that adsorbs the drip or the drainage is spread on the bottom 1 of the container body 3.

[0004] However, when blood is adsorbed to the adsorbent 5, the blood can be seen from the outside, and the appearance is poor and the commercial value of the fresh fish 4 is reduced. Also,
Since the fresh fish 4 is placed in contact with the adsorbent 5 that has adsorbed blood and the like, the fresh fish 4 may be discolored or deteriorated in freshness at the contact portion. In addition, since the adsorbent 5 is used, the cost is high, and there is a problem that labor for laying the adsorbent 5 on the bottom 1 is required. Furthermore, when the amount of drainage or the like adhering to the fresh fish 4 itself is extremely large and the amount of adsorption of the adsorbent 5 is insufficient, the drainage is frozen in a state of being collected at the bottom of the container body 3, The frozen effluent will damage the fresh fish 4.

[0005] Therefore, as shown in FIG.
There is also used a foaming container in which a drain hole 8 is provided in the bottom 7 and a drip such as drainage or blood juice flows out from the drain hole 8 to the outside. However, this foaming container solves the above-mentioned problems caused by blood juice, drainage, and the like, but has a problem that airtightness and coolness are reduced. That is, the drain hole 8
The outside air flows into the container main body 6 through the container, so that the frozen fresh fish 4 is easily thawed, and the moisture evaporated from the surface of the frozen fresh fish 4 comes out of the drain hole 8 to the outside. For this reason, the surface of the fresh fish 4 may be discolored or dry.

Therefore, the present inventors can eliminate the drip or the like so that the frozen or cooled material such as fresh fish does not come into direct contact with the drip or the drainage flowing out of the frozen object or the like, and furthermore, is airtight. As a result of diligent studies to obtain a foaming container for freezing and cooling, which has heat- and cold-holding properties, the present invention has been achieved.

[0007]

The gist of the foaming container for freezing and cooling according to the present invention is a foaming container in which a container body having a bottom and a side wall is integrally formed of a foamed resin. The bottom of the container body has a built-in water retention means having an opening that opens to the inner surface of the bottom, and the water retention means has a narrow opening.
There are only a few vacancies .

[0008] In such a freezing-cold foam container, before
The vacant space of the water retaining means may be formed of a substantially spherical concave portion .

Summary of the foaming container for freezing and cooling according to the present invention
The container body consisting of the bottom and side walls is made of foam resin
A foamed container integrally formed by
Water retention means having an opening at the bottom of the body and opening to the inner surface of the bottom
A built-in, it is an-holding water means a pore of 1 or more water retention formed on the bottom of the container body.

Summary of the foaming container for freezing and cooling according to the present invention
The container body consisting of the bottom and side walls is made of foam resin
A foamed container integrally formed by
Water retention means having an opening at the bottom of the body and opening to the inner surface of the bottom
And a cold storage agent is provided in part or all of the water retention means.

Further, in such a foaming container for freezing / cooling, a cold storage means is built in a container body of the foaming container .

[0012]

The foaming container for freezing and cooling according to the present invention has a built-in water retaining means at the bottom of the container body, and the water retaining means is opened on the inner surface side of the container body. Therefore, when putting frozen objects such as fresh fish and insulated objects such as fruits and vegetables in the container body of the foaming container, the water and the like adhering to these are not collected at the bottom of the container body, but are built into the bottom of the container body. It will accumulate in the water retention means. As a result, since the frozen object is not immersed in water in the container body, it can be prevented from being deteriorated or decayed, and in the case of fresh fish, etc., the blood juice from the fish enters the water retention means. Because it is almost invisible from the outside, there is a sense of cleanliness and the commercial value increases.

[0013] The water retention means may be a cavity formed by a concave portion or a groove which can collect water or the like integrally formed at the bottom of the container body, a cavity formed by fitting another member, or the like. In each case, an opening is provided so that a liquid such as water flows from the inside of the container body into the empty room. Further, the water retention means can be constituted by means capable of retaining water using the adhesion of water or the adhesion and surface tension. In other words, it is configured such that the slit-like or dot-like pores formed at the bottom of the container body retain water using capillary action, or the liquid accumulates in the pores due to the adhesive force and surface tension of the liquid. It can hold water.

In addition, a known cold storage agent is provided in a part or the whole of the water holding means built in the bottom of the container body, and the cold storage agent can be frozen to enhance the cold insulating property.

Next, the foaming container for freezing / cooling according to the present invention is provided on the bottom or the side wall of the container main body or separately from the water retaining means provided on the bottom of the container main body. A cold storage means can be built in the foaming container for freezing / cooling for a long period of time.

[0016]

Next, an embodiment of a foaming container for freezing / cooling according to the present invention will be described in detail with reference to the drawings.

In FIG. 1, reference numeral 10 denotes a container body of a foaming container 12 for freezing / cooling according to the present invention.
0 is covered with a cover (not shown) so as to be sealed. The container body 10 has a bottom 14 and a side wall 16 integrally formed of a foamed resin. The container body 10 and the lid are formed of expanded polystyrene resin, expanded polyolefin resin such as expanded polyethylene or expanded polypropylene, expanded resin obtained by expanding a copolymer of styrene and ethylene or propylene, expanded polyurethane, or the like. A foamed polystyrene resin is most preferable in terms of cost and the like. Further, the container body 10 and the lid may be formed of a single body of these foamed resins,
Aluminum foamed films are laminated or inserted on the inner surface or inside of the foam container to improve heat insulation and airtightness, or a cardboard box is laminated or inserted on the inner surface or inside of a cardboard box. May be. Further, these may be formed by extrusion molding of expanded polystyrene, so-called polystyrene paper by vacuum molding, or plastic cardboard made of polypropylene.

The opening of the container main body 10 is configured such that a convex ridge 18 formed at an end of the side wall 16 and a concave ridge formed on the lid are fitted and hermetically sealed. Further, a concave ridge 20 is formed on the outer peripheral portion of the bottom 14 of the container main body 10, and when a plurality of container main bodies 10 are stacked and used, the convex ridge 18 of the lower container main body 10 and the upper container main body 1
The lower container body 10 is hermetically sealed by fitting with the 0 concave streak 20. The container main body 10 is formed in a size that can accommodate several fish in a row according to the size of the fish to be stored, for example, a fresh fish such as a snapper or a flatfish, or a salted fish such as a salt mackerel. It is needless to say that the fitting relationship between the convex ridge and the concave ridge formed on each of the container body and the lid may be formed so as to be opposite to the above-described embodiment.

Inside the bottom 16 of the container body 10, there are formed a plurality of recesses 24 each having an opening 22 which opens into the inner surface thereof. It is formed so as to store liquid. The concave portion 24 has a substantially spherical shape as shown in an enlarged view in FIG. 2B, and the maximum diameter of the concave portion 24 is formed larger than the diameter of the opening portion 22, so that a large amount of liquid accumulates inside. It is configured as follows. The concave portion 24 having such a shape is integrally formed at the same time when the container body 10 is molded, and the mold of the concave portion 24 is released by elastically deforming the foamed resin in the opening 22.

[0020] The foaming container 1 for freezing and cooling according to the above configuration.
In 2, first, frozen objects such as salted fish and fresh fish such as salted mackerel are put into the container body 10. Drainage such as water adhering to the frozen object or blood drip flowing out of the frozen object flows through the bottom 14 of the container body 10 and flows from the opening 22 into the recess 24. When the drip or the like flows into the concave portion 24, the frozen object and the drip or the like are placed in a separated state. Thereafter, the container body 10 is placed in a freezer without being sealed, and the frozen object is frozen. The frozen object is frozen while being separated from the drip or the like, while the recess 2
The drip etc. accumulated in 4 can be frozen at the same time. After the object to be frozen is frozen, the foaming container for freezing / cooling 12
When the container is carried out of the freezer or the like, the container main bodies 10 are stacked and the lid is placed on the uppermost container main body 10, so that the container main body 10 is sealed.

As described above, the upper opening of the container main body 10 is sealed by the cover and the bottom 14 of the container main body 10. The inside of the container main body 10 is kept cool and airtight, and the inside of the container main body 10 is frozen. The object is prevented from so-called freezing and burning, and is hardly affected by changes in the outside air temperature, and is kept cool at a substantially constant temperature. Further, since a liquid such as a drip is frozen in the concave portion 24 formed in the bottom 14 of the container body 10, the frozen liquid is
It will enhance the heat insulation and insulation effect in the interior. Furthermore, although the inside of the foaming container 12 is kept airtight, even if the humidity in the container 12 decreases, the frozen drip or the like evaporates from the recessed portion 24 to replenish the water, and Will not dry out.

In the case where a frozen object previously frozen is put in the foaming container 12, when the frozen object is thawed and a drip such as blood juice or drainage flows out, The drip etc. are on the bottom 1 of the container body 10.
4 does not flow into the recess 24 formed in the container 4 and the frozen object is not dipped in the drip or the like in the container body 10. Therefore, the thawing of the frozen material is not promoted, and there is no decay or discoloration. Moreover, since blood and the like flow into the recessed portion 24 in this manner,
Blood juice is hardly visible, and the appearance can be kept clean.

Although the embodiment of the foaming container for freezing and cooling according to the present invention has been described in detail, the present invention can be embodied in other forms.

For example, as shown in FIG. 2, the foaming container 26 for freezing / cooling according to the present invention has a plurality of bag-like grooves 34 having slit-like openings 32 formed in the bottom 30 of the container body 28. May be. The cross-sectional shape of the bag-shaped groove 34 may be circular, may be oval as shown in FIG. 3 (a), or may have an angled bottom as shown in FIG. 3 (b). It may have a bottle shape, and is not limited at all. By forming the bag-shaped groove 34 in the bottom 30 in this manner, it is possible to set a large amount of water retention, and to reduce the area where the frozen object or the cooled object comes into contact with the drip, drainage, and the like. , The maintenance of quality is ensured.

In the above-described embodiment, the bag-shaped groove 34 is integrally formed at the same time when the container body 28 is formed.
Since the mold is removed by using the elasticity of the foamed resin, there is a limit to the ratio of the size of the groove 34 and the size of the opening 32 that can be integrally formed. Therefore, when the water holding amount of the container body is set to be larger, it becomes possible by using a separate member.

For example, as shown in FIG. 4A, a slit-shaped or dot-shaped opening 40 is provided in the bottom 38 of the container body 36, and a bag-shaped groove 42 as a water retention means is built in the bottom 38. It is also possible. As shown in FIG. 2B, the water retention means first forms a slit-shaped or point-shaped opening 40 and a long groove-shaped recess 41 in the bottom 38 of the container body 36, and separately forms the recess 41 in the recess 41. A container 44 formed of resin or the like is fitted and joined to form a bag-like groove 42 as shown in FIG. In such a configuration, the container body 36 can be reinforced by forming the container 44 from a hard resin or the like. Further, with such a configuration, in the molding operation of the container main body 36, the mold release is facilitated, and the workability is improved.

As shown in FIG. 5, a long groove-shaped concave portion 49 is provided inside the bottom 48 of the container body 46, and a cover member 50 is fitted into the concave portion 49 to form a bag serving as a water retaining means. A groove 52 may be formed.

The cover member 50 has a slit shape.
Is provided with a point-like opening 54, and this opening 54
Is configured to allow drip and drainage to flow through
You. The cover member 50 has a groove 56 in the recess 49.
It is preferable to form the groove 56
By collecting drip etc. efficiently, the bag-like groove 5
2 can be poured .

Next, as shown in FIGS. 6 (a) and 6 (b), a plurality of fine holes 68 are provided on the bottom 66 of the container main body 64, and drip and the like are retained in the fine holes 68 by utilizing the capillary phenomenon. It may be configured as follows. The pores 68 may be not only point-shaped holes but also slit-shaped holes, and are not limited at all. Here, the pores 68 may have the same diameter as shown in FIG. 7B, but may have an enlarged diameter portion 70 as shown in FIG. 7A. By providing the enlarged diameter portion 70,
It is possible to prevent the drainage of water or the like outside the container body 64 from being sucked up by capillary action. Also, in place of the point-like or slit-like pores 68,
As shown in (b), a water absorbing member 72 may be provided to retain water. As the water absorbing member 72, a bundle of fibers or a porous body arranged in a large number in one direction is used.

Further, in the embodiment shown in FIG. 6 , the pores 68 are formed by slits or holes having such a gap as to cause a capillary phenomenon. However, water adheres to the pores 68 due to the adhesion of water and the surface tension. The diameter of the pores 68 may be set to be large enough to be retained. By configuring the pores 68 in this manner, when a liquid such as water accumulates in the container body 64, the liquid in the container body 64 is discharged to the outside through the pores 68 due to the gravity of the liquid. On the other hand, when the liquid is lost in a portion above the bottom 66 of the container body 64, the liquid is held in the pores 68 by its adhesive force and surface tension. When the frozen object is frozen in such a state, the liquid in the pores 68 is also frozen, and the pores 68 are closed, so that the airtightness in the container body 64 is maintained.

The embodiments of the foaming container for freezing / cooling provided with the water retaining means according to the present invention have been described above.
The water retaining means can be appropriately configured. Further, by freezing the liquid such as water stored by the water retention means, it is possible to keep the frozen object or the cold object in the container main body for a long period of time. By arranging the regenerator, it is possible to keep cold for a longer period of time. As the regenerator, known ones can be used, and those which are harmless to humans and animals are particularly preferable. The regenerator may be disposed directly in the recess 24 shown in FIG. 1 or in the bag-like groove 34 shown in FIG. 2, for example. However, the regenerator is subjected to a surface treatment so that the regenerator does not leak outside. May be. Further, only the cool storage agent may be frozen in advance, and the frozen cool storage agent may be disposed in the recess 24 or the like, and there is no limitation.

It is also possible to configure the water retaining means and the cool storage means separately. For example, as shown in FIG.
At the bottom 76 of the container body 74, a bag-shaped groove 80 having an opening 78 opened on the upper surface is built in as a water retaining means, and a cool storage chamber 82 in which a cool storage agent is put separately from the bag-shaped groove 80 is built. It is possible to make the configuration . In addition, the regenerator can be built in the side wall.

Further, as shown in FIG. 9 , it is possible to arrange a cool storage chamber 94 in a lid 92 that closes the opening of the container main body, in order to enhance the cooling performance of the foaming container for freezing / cooling.
By providing the cool storage chamber 94 in the lid 92, the inside of the container body can be cooled from the top and kept cool, and can be kept cool for a long time.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above-described drawings. For example, the foamed container shown in the above-described embodiment shows an example in which the present invention is applied to a container body of a conventional shape, but the present invention is a frozen object stored in a state where a plurality of foamed containers are bound with a string or the like. The present invention can be applied to a foamed container having a vent hole developed so as to be able to freeze, and is not limited at all.

Further, in the above-described embodiment, an example in which fresh fish and shellfish such as salted mackerel and fresh fish are stored in a foaming container and frozen is described, but the foaming container for freezing and cooling according to the present invention is described. Can be applied to a cold storage container.
Here, the cold storage container is a container for cooling the fruits and vegetables and the like and keeping the fruits and vegetables at a low temperature in order to maintain the freshness of the fruits and vegetables when they are shipped to the market. The shape of the cold storage container is set according to the type of fruit and vegetables put therein, and the shape and size are not limited in the present invention. The method of cooling the insulated object such as fruits and vegetables stored in the insulated container is such that the insulated object is brought into direct contact with the cool air, or brought into contact with the forcibly sucked cool air by creating a pressure difference inside and outside the container, Alternatively, there is a method of removing latent heat by evaporating water from the surface of the object to be cooled by exposing it to a reduced pressure, and in addition, a frozen regenerator is disposed in the refrigerating means, or a regenerator is provided. It is also possible to freeze the lid in a freezer and to keep the container closed by closing the container body with the lid.

Further, only the side wall of the container main body may be formed of expanded beads having a low expansion ratio to increase the strength of the foaming container for freezing / cooling. In addition to changing the expansion ratio, by changing the type of foamed resin, for example, the side wall of the container body is made of a copolymer of polystyrene and polyethylene copolymer resin, and the bottom of the container body is made of another foam such as polystyrene. It may be integrally formed using a known partial two-layer molding method. In this way, the properties of a polystyrene / polyethylene copolymer foam having high flexibility and being difficult to be broken, but being easily deformed, and a polystyrene foam having being hard and being hard to be deformed, being easily broken, are provided. And a high-strength foaming container for freezing / cooling provided with: The combination and mixing ratio of the foamed resin can be appropriately set in consideration of the use and cost of the foaming container for freezing / cooling, and are not limited to the above-described embodiment.

Various embodiments of the present invention have been described above.
The foaming container for freezing / cooling according to the present invention can be configured by appropriately combining the above-described embodiments. Others
When a partition plate that partitions the inside of the foaming container for freezing / cooling is used, the present invention can be applied to the partition plate, and the present invention does not depart from the spirit thereof.
Based on the knowledge of those skilled in the art, various improvements, modifications and changes can be made.

[0038]

According to the present invention, since the water-retaining means having an opening which opens to the inner surface side is built in the bottom of the container body of the foaming container for freezing / cooling according to the present invention, the material to be frozen such as fresh fish and fruits and vegetables can be obtained. The water or the sap flowing from fresh fish or the like adhering to the cold-retained material is stored in the water-retaining means through the opening, and the frozen material is not immersed in a liquid such as water. Therefore, when the frozen object is frozen, it is not frozen in ice, and the frozen object is not immersed in cold water, and the frozen object is altered or putrid. I will not do it. In addition, by freezing the water and the like stored in the water holding means together with the frozen object, the cooling effect can be improved, and not only can the cold be kept for a long time, but also the temperature inside the foaming container can be kept low while maintaining the low temperature. It becomes possible to expose to outside air for hours.

In addition, the cold storage effect can be further enhanced by disposing a cold storage agent in part or all of the water holding means of the foaming container for freezing / cooling according to the present invention. Further, by incorporating a regenerative means for regenerative storage in which a regenerative agent or the like is disposed on the bottom or side wall of the container body of the foaming container for freezing / cooling, or a lid placed on the container body, foaming having a refrigerating function is provided. A container can be configured.

[Brief description of the drawings]

FIG. 1 is a view showing a main part of a container body of a foaming container for freezing / cooling according to the present invention, wherein FIG. 1 (a) is a fragmentary perspective view of a main part, and FIG. It is an expanded sectional view of.

FIG. 2 is a fragmentary perspective view showing another embodiment of the container body of the foaming container for freezing / cooling according to the present invention.

FIGS. 3 (a) and 3 (b) both show the freezing and freezing shown in FIG.
It is a figure which shows the bag-shaped groove | channel which is a water retention means of the container main body of the foam container for cold insulation.

FIG. 4A is a front sectional view showing another embodiment of the container body of the foaming container for freezing / cooling according to the present invention, and FIG.
FIG. 4 is an explanatory cross-sectional view for explaining a method of manufacturing the container body of the foaming container for freezing / cooling shown in FIG.

FIG. 5 is a front sectional view showing another embodiment of the container body of the foaming container for freezing / cooling according to the present invention.

FIG. 6 (a) is a front sectional view showing still another embodiment of the container body of the foaming container for freezing / cooling according to the present invention.
(b) is an explanatory view showing an enlarged main part of the container main body shown in FIG. (a).

FIGS. 7 (a) and 7 (b) are cross-sectional views of essential parts showing still another embodiment of the container body of the foaming container for freezing / cooling according to the present invention.

FIG. 8 is a front sectional view showing still another embodiment of the container body of the foaming container for freezing / cooling according to the present invention.

FIG. 9 is a front sectional view showing an embodiment of the lid of the foaming container for freezing / cooling according to the present invention.

FIG. 10 is a front sectional view showing an example of a container body of a conventional foaming container for freezing / cooling.

FIG. 11 is a front sectional view showing another example of the container body of the conventional foaming container for freezing / cooling.

[Explanation of symbols]

10 , 28, 36 , 46, 64 , 74 ; container body 12, 26; foaming container for freezing / cooling 14 , 30 , 38 , 48 , 66 , 76 ; bottom 16; side wall 22 , 32 , 40 , 54 , 78; Opening 24; concave portion (water retaining means) 34, 42, 52, 80; bag-shaped groove (water retaining means) 68; pore (water retaining means) 72; water absorbing members (water retaining means) 82 , 94; cold storage chamber 92; Lid

Claims (5)

(57) [Claims] 1. A foamed container in which a container body composed of a bottom and a side wall is integrally formed of a foamed resin, wherein a water retention means having an opening opening into an inner surface of the bottom is built in the bottom of the container body. The water retention means is a plurality of vacant rooms having narrow openings.
Freezers and cold foam container, characterized in that that. 2. The water holding means according to claim 1, wherein said vacant space has a substantially spherical concave shape.
2. The refrigeration according to claim 1, wherein the refrigeration comprises a recess.
-Foam container for cooling . 3. A foamed resin body comprising a bottom and side walls.
A foam container formed more integrally, said container body
Water retaining means having an opening at the bottom of the
Built-in , and the water retention means is formed at the bottom of the container body.
Or refrigeration characterized by a plurality of water retaining pores
Foam container for cooling. 4. A container body comprising a bottom and side walls is made of a foamed resin.
A foam container formed more integrally, said container body
Water retaining means having an opening at the bottom of the
A foaming container for refrigeration / cooling, wherein the foaming container is built-in , and a regenerator is provided in part or all of the water retention means. 5. The foaming container for freezing / cooling according to claim 1, wherein a cool storage means is incorporated in a container body of said foaming container.