JPH07291369A - Method for preventing deformation of container of cold reserving and cold reserving apparatus - Google Patents

Abstract

PURPOSE:To make a cold reserving apparatus so attractive that it can be suitably used in a wedding reception or the like, lower a cost, and set a relatively large amount of cold reserving agent in a container to have a sufficient cold reserving effect. CONSTITUTION:A cold reserving body 1 consists of cold reserving members 11, 12. On inner surfaces 14 thereof, recessed parts 15, 15 are juxtaposed. Reinforcing grooves 150... and circular holes 18... are provided in the inner surfaces. A cold reserving agent is set inside the cold reserving members 11, 12. The cold reserving agent is prepared by dispersedly mixing foamed polypropylene granules in a mixture of soft water and hygroscopic polymer. The cold reserving members 11, 12 are housed in an inner box 2. Cylindrical bottle containing parts 10, 10 are formed in the cold reserving body. The inner box housing the cold reserving body is housed in an outer box 3. Bottle holes 30, 30 are formed on a top surface 32 of the outer box at positions corresponding to the bottle containing parts 10, 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold-keeping device for keeping foods, beers, champagnes, drinks such as wine, etc., and a method for preventing deformation of the container shape due to expansion of the cold-keeping agent during freezing. .

[0002]

2. Description of the Related Art For example, at a wedding reception or a food and drink party for various events, a toast is first held. This toast is usually done with beer. When making a toast, before the toast is taken, the women in charge serve the cold beer all at once and pour it into a glass to prepare. But,
There is no problem with this method for small parties, but for large-scale parties, a large number of service personnel are required only for a toast, which is inefficient in staffing. Therefore, conventionally, for example, a cold-insulating device that is used by wrapping an object to be cold-wrapped in a mat shape containing a cold-retaining agent, or a stationary device that has a storage part and stores the cold-storing product in the storage part is used. Has been done.

[0003]

However, the above-mentioned conventional cold insulator has the following problems. (A) Since the conventional cold insulator is used with the appliance itself exposed, it does not look good when placed on a table at a wedding reception or the like. (B) The mat-like cold-retaining device requires a lot of work because it needs to wrap the objects to be cooled, such as beer bottles, and it is not a problem for personal use, but it is unsuitable for use at receptions and the like.

(C) In the stationary cold-keeping device having the containing portion, the containing portion is not deformed due to expansion of the cold-retaining agent during freezing, so that the object to be kept cold such as a beer bottle cannot be stored.
It was necessary to make the container extremely strong, which resulted in high costs. Also, since the wall thickness of the container inevitably becomes thicker, the amount of the cooling agent that can be stored becomes relatively small,
A sufficient cooling effect was not obtained.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to make the cold storage equipment look good when placed on a table or the like, and to make it suitable for use at a reception or the like. Another object of the present invention is to reduce the cost of the container of the cold-retaining device so that a relatively large amount of the cold-retaining agent can be stored in the container so that a sufficient cold-retaining effect can be obtained.

[0006]

[Means for Achieving the Object] The means of the present invention for achieving the above object are as follows. The first means is a method for preventing deformation of the container shape of the cold insulator, which involves mixing and dispersing a required number of expansion absorbers having a deformation recovery property in the cold insulator in the container, A method for preventing deformation of a container of a cold insulating device, wherein expansion of the cold insulator during freezing is absorbed by the expansion absorber to prevent deformation of the container shape.

The second means is a cold-retaining device, which contains a cold-retaining body having a hollow portion, a cold-retaining agent filled in the hollow portion of the cold-retaining body, and the cold-retaining body. A storage container having an insertion hole that communicates with the storage portion, and the cold insulator is divided into a plurality of parts, and a combination of them is stored in the storage container to form a substantially cylindrical shape. This is a cold-retaining device in which a required number of parts are formed and the cold-insulating body is provided with deformation preventing means for preventing deformation due to expansion of the cold-insulating agent during freezing.

The third means is the cold-insulating device according to the second means, in which a required number of expansion absorbers having a deformation recovery property are mixed and dispersed in the cold-insulating agent.

The fourth means is a cold-retaining device, which comprises a cold-retaining body having a hollow portion and a cold-retaining agent filled in the hollow portion of the cold-retaining body. The agent is a cold-retention device in which a required number of expansion absorbers having a deformation recovery property are mixed and dispersed.

[0010]

[Function] If the cold insulator is cooled in a freezer or the like, and the cold insulating agent is frozen and then stored in the storage container, and the bottled beverage such as beer is stored in the storage portion, the cold storage effect of the cold storage body allows for a long time. Can be kept at a low temperature. Therefore, even if a relatively long time elapses after the bottled beverage is left at room temperature until it is drunk, it can be drunk deliciously. In addition, even if a bottled beverage containing carbon dioxide gas such as beer is placed with the stopper open, the carbon dioxide gas is difficult to escape because it is kept at a low temperature, and there is a concern that it will not be drinkable unless it is so long There is no.

Further, in the case of the cold insulation device combined with the storage container, even when the bottle is cooled and dew condensation occurs on the bottle surface,
Since the dropped water drops are collected in the container, they do not wet the table cloth or the like. Furthermore, when the cold insulating agent inside the cold insulator freezes, the cold insulator is less likely to be deformed by the deformation preventing means. Therefore, the size of the container can be set so that the inner wall is close to the bottle surface, for example, within a range in which water droplets condensed on the bottle surface do not freeze, so that the cooling effect is further enhanced.

When the required number of expansion absorbers having a deformation recovery property are mixed and dispersed in the cold insulator, the expanded portion is absorbed by the compressive deformation of the expanded absorber even if the cold insulator expands due to freezing. It Therefore, deformation due to the internal pressure of the cold insulator container is unlikely to occur or does not occur.

[0013]

The present invention will be described in more detail based on the embodiments shown in the drawings. FIG. 1 is an exploded perspective view showing an embodiment in which the present invention is applied to a bottled beverage, FIG. 2 is a front view showing the structure of a cold insulating member, and FIG. 3 is a plan view showing a part of the structure of the cold insulating member in section. Is. The cold insulation device for bottled beverages includes a cold insulator 1. The cold insulator 1 is composed of two cold insulating members 11 and 12. Since the cold insulation member 11 and the cold insulation member 12 have the same structure, only the structure of the cold insulation member 11 will be described here.

The cold insulating member 11 is made of plastic (PE) and has a hollow container shape. The cold insulating member 11 has a quadrangular shape when viewed from the front, and the outer side surface 13 is formed in a flat shape and is formed by blow molding. In blow molding, the wall thickness is difficult to be constant, and for example, it does not affect the accommodation of bottles and the like, and the wall thickness of the outer surface is made thin and fragile so that the outer surface is deformed when the cold insulating agent 19 described later expands. It is difficult to make adjustments such as setting. Also, if the outer surface is deformed, it will not fit in the inner box 2 described later. Therefore, the cold insulation member 11 in the present embodiment
In particular, by providing a deformation preventing means, it is made difficult for the concave portions 15, 15 described later to be deformed.

On the inner surface 14 of the cold insulating member 11, concave portions 15 and 15 having a substantially semicircular cross section which form the bottle accommodating portions 10 and 10 to be described later are provided in parallel. Further, the inner side surface 14 has a plurality of reinforcing grooves 150, 150
.. are provided in parallel with the upper surface 16 and the lower surface 17.
Further, circular holes 18, 18, ... As deformation preventing means are provided at two upper and lower positions at the deepest portions of the concave portions 15, 15. As shown in FIG. 3, the circular holes 18, 18 ... Are closed by a back plate 180 which is provided flush with the outer surface 13.

The hollow portion 110 inside the cold insulating member 11 is filled with a cold insulating agent 19. The cooling agent 19 is a mixture of soft water and a water-absorbing polymer, and the cooling agent 19 has expanded polypropylene particles 190 as an expansion absorber mixed and dispersed therein.
Other expandable plastics, such as expanded polystyrene particles, may be used as the expansion absorber as long as the expansion recovery property is good. As the water-absorbing polymer, Aqualic CA [trade name: model number H-2: Nippon Shokubai Chemical Industry Co., Ltd .: composition-crosslinked sodium polyacrylate] is used in this example.

The expanded polypropylene granules 190 use Eperan PP [trade name: model number LBS18: Kanegafuchi Chemical Industry Co., Ltd .: composition-polypropylene, additives-calcium stearate, butyl dolacresol], and the deformation recovery rate is approximately. It is 94%. Reference numeral 101 is an injection port for injecting the cooling agent 19 and the expanded polypropylene particles 190.
Reference numeral 02 is a seal cap. The seal cap 102 is welded by an ultrasonic plastic welder after injecting the cold insulating agent 19 and the expanded polypropylene particles 190. In this embodiment, the cooling agent 19 and the expanded polypropylene particles 19 are used.
The volume occupancy of the hollow portion 110 of 0 is set to 91 to 92%.

The method of making the cold insulating agent 19 in this embodiment is as follows. First, 1000 ml of soft water at 20 ° C. and 8.3 g of a water absorbing polymer are mixed and stirred. The water-absorbing polymer in this example is granular with a size of about 1 to 2 mm. When left for about 30 minutes, the water-absorbing polymer absorbs the soft water and becomes independent agar. 333 ml of expanded polypropylene particles 190 was mixed with this and stirred for about 5 minutes, and the expanded polypropylene particles 190 contained air between the expanded polypropylene particles 190 and the absorbed water-absorbing polymer to provide a cooling agent 1
9 so as to be distributed almost evenly.

The proportion of soft water and water-absorbing polymer is appropriately adjusted depending on the water quality. Note that hard water can be used instead of soft water, but in that case, the water absorption rate becomes small, so it is necessary to increase the amount of the water-absorbing polymer used. Further, the mixing ratio of the expanded polypropylene particles 190 is preferably within 40% in volume ratio within a range in which the container of the cold insulating member 11 is unlikely to be deformed when the cold insulating agent 19 is expanded. If it exceeds that, the cold insulating effect becomes unsuitable for practical use. Also, the ice pack 1
It is also possible to use glue or paste-like material as 9.

As shown in FIG. 1, the cold insulating members 11 and 12 are housed in the inner box 2 which constitutes a housing container with the inner side surfaces 14 and 14 facing each other. Inner box 2 is made of paper,
It is a box-like body having a square shape in plan view with an open top, and is a cold insulation member 1
It is formed according to the outer shapes of 1 and 12, that is, so that the outer surface portion thereof fits in with almost no space. The inner box 2 is an assembly type and can be folded when not in use. The entire inner surface of the inner box 2 is waterproofed, and a water absorbing sheet (not shown) is laid on the bottom. This prevents the table cloth and the like from getting wet even if water droplets drop due to dew condensation on the bottle surface during use. In addition, in FIG. 1, the same parts as those of the cold insulation member 11 are denoted by the same reference numerals in the cold insulation member 12.

In the cold insulator 1 housed in the inner box 2 with the inner side surfaces 14, 14 facing each other, the cold insulator members 11, 12 are provided.
By the concave portions 15, 15, the substantially cylindrical-shaped bottle accommodating portions 10, 10 which are accommodating portions are formed. Bottle storage part 1
In the present embodiment, the size of the bottles of 0 and 10 is such that the inner bottle of beer has a slight gap (4 to 5 m) from the inner wall of the bottle housing portions 10 and 10.
m). This prevents water droplets from freezing and becoming unable to be removed when dew condensation forms on the bottle surface. On the other hand, if the gap is larger than the above, the air layer becomes thick and a sufficient cooling effect cannot be obtained.

The inner box 2 containing the cold insulator 1 composed of the cold insulating members 11 and 12 is contained in an outer box 3 which constitutes a container as shown in FIG. The outer box 3 has a substantially rectangular tube shape with both sides open, and can be folded. Lower surface 31 of outer box 3
Is substantially the same as the length of the inner box 2, and the length of the upper surface 32 is set to be slightly longer than that of the lower surface 31. Also, a pattern 34 including the letter of Kotobuki is displayed on the side surfaces 33, 33. Then, on the upper surface 32, bottle holes 30, 30 which are insertion holes having the same diameter as the bottle housing portion 10 are formed at positions corresponding to the bottle housing portions 10, 10. In addition, bottle hole 3
The shapes of 0 and 30 are not limited to circles, but may be ellipses or polygons.

The size of each part of the bottled beverage cooler A is as follows. The thickness a of the cold insulating member 11 is 55
mm, width b is 208 mm, height c is 138 mm, the radius d of the recess is 39 mm, the diameter e of the circular hole 18 is 25 mm, and the diameter f of the bottle hole 30 of the outer box 3 is 80 mm. The size of each part is not limited to the above values, and may be set appropriately according to the size of the bottle to be stored.

(Operation) FIG. 4 is an explanatory view showing a use state,
FIG. 5 is a graph showing changes in the temperatures of the cold insulating member and the beer. The operation of this embodiment will be described with reference to FIGS. In a large-scale banquet or the like, the cold storage device A for bottled beverage is placed at a predetermined position on the table, and the beer bottle B with the stopper opened is stored in the bottle storage portions 10, 10. The bottle mouth is covered with decorative lids 4 and 4 made of paper and bent in a U shape. At this time, the cold storage device A for bottled beverages is
The cold insulation members 11 and 12 are set to -28 in a freezer etc.
The product is kept at 12 ° C. (preferably −28 ° C. to −15 ° C.) for about 12 hours, and the cold insulator 19 inside is completely frozen before use.

When the cold insulating agent 19 is stored in the freezer and the cold insulating agent 19 is frozen, the cold insulating agent 19 expands, but this expanded amount is absorbed by the compression deformation of the expanded polypropylene particles 190. Also, the cold insulation members 11, 1
Also in 2 itself, the reinforcing grooves 150, 150 which are the deformation preventing means.
.. and circular holes 18, 18 ... Are provided, so that the container of the cold insulating members 11, 12 can be prevented from being deformed. Since the expanded polypropylene granules 190 have a deformation recovery property,
When the cold-preserving agent 19 is thawed, it almost restores its original shape.

Therefore, it is possible to prevent the inconvenience that the inner wall of the bottle housing portion 10 bulges inward and deforms and the beer bottle B cannot be housed. In addition, the bottle container 1
For example, the size of 0 or 10 can be set so that the inner side surface 14 is close to the bottle surface within a range in which water droplets condensed on the bottle surface do not freeze. Further, this further enhances the cooling effect. Further, even when the beer bottle B is cooled and dew condensation is formed on the bottle surface, it is accumulated in the inner box 2,
Never wet table cloths. In addition, inner box 2
Since the inner surface of the is waterproofed, the dropped water is repelled and the inner box 2 made of paper does not get wet and break, and can be used repeatedly.

The graph of FIG. 5 shows changes in the temperature state when the beer bottle B cooled to 4 ° C. is stored in the bottle storing portions 10 and 10 of the cold drink holding device A for bottled beverages A at room temperature of 26 ° C. is there. The temperature of beer is 2 ° C after 30 minutes
Cool down. After that, the temperature gradually increased, but was 3 ° C. after 2 hours and 5 ° C. after 5 hours. Therefore, it was found that even if a long time elapses after placing the beer bottle B until the toast or before the toast is not limited to the toast, it is possible to keep the cold enough and to drink deliciously.
Further, even if the beer bottle B is placed with the stopper open, since it is kept at a low temperature, it is possible to sufficiently prevent the escape of carbon dioxide gas only by covering the decorative lids 4 and 4 described above.

Furthermore, since the bottled beverage cooler A itself has a weight of about 1.5 kg, it also has the advantage that the beer bottle accommodated is stable and does not easily fall.
In the bottled beverage cooler A, the cold insulator 1 is divided into two cold insulators 11 and 12, and the inner box 2 and the outer box 3 can be folded. As a result, the accommodation space can be reduced during accommodation when not in use.

In this embodiment, the cold insulator 1 is divided into the two cold insulating members 11 and 12, but it is not limited to this, and it may be divided into three or more. Further, the cold insulating members 11 and 12 are not limited to the above-mentioned usage, and may be used alone, for example, by laying them horizontally with the inner surface 14 facing downward and placing a sashimi plate or a towel on them. Further, it can be used as a heat retaining body. The present invention is not limited to the illustrated embodiment, but various modifications can be made within the scope of the claims.

[0030]

The present invention having the above-mentioned structure has the following effects. (A) In a cold storage device in which a cold insulator is housed in a container, if the container is made beautifully, it looks good even when placed on a table, so when using it at a wedding reception, etc. preferable.

(B) In the cold-retaining device in which the cold insulator is housed in the container, even when the bottle is cooled and dew condensation occurs on the bottle surface, the dropped water droplets are collected in the container. It does not get wet and there is no need for trouble when cleaning up.

(C) In the cold-retaining device in which the cold-retaining body is provided with the deformation preventing means, deformation does not easily occur even when the cold-retaining agent inside the cold-retaining body is frozen. Therefore, for example, the size of the container can be set so that the inner wall is close to the surface of the bottle within a range in which water droplets condensed on the surface of the bottle do not freeze, so that the cooling effect is further enhanced.

(D) With respect to the cooling agent in which a required number of expansion absorbers having a deformation recovery property are mixed and dispersed, even if the cooling agent expands due to freezing, the expanded portion is absorbed by the compressive deformation of the expansion absorber. It As a result, the container of the cold insulator is less likely to be deformed by the internal pressure. Therefore, the container of the cold insulator can be formed to be relatively thin, and the cost can be kept low. In addition, since a relatively large amount of the cold insulating agent can be filled in as much as the thickness is thin, a sufficient cold insulating effect can be obtained.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment in which the present invention is applied to a bottled beverage.

FIG. 2 is a front view showing the structure of a cold insulating member.

FIG. 3 is a partially sectional plan view showing the structure of a cold insulating member.

FIG. 4 is an explanatory view showing a usage state.

FIG. 5 is a graph showing changes in temperature of the cold insulating member and beer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cold-retaining body 11, 12 Cold-insulating member 10 Bottle accommodation part 110 Hollow part 14 Inner side surface 15 Recess 150 Reinforcing groove 18 Circular hole 19 Cooling agent 190 Foamed polypropylene grain 2 Inner box 3 Outer box 30 Bottle hole

Claims (4)

[Claims] 1. A method for preventing deformation of the shape of a container of a cold insulation device, which comprises mixing and dispersing a required number of expansion absorbers having a deformation recovery property in the cold insulation in the container, A method for preventing deformation of a container of a cold storage device, wherein the expansion absorber absorbs expansion during freezing to prevent deformation of the container shape. 2. A cold insulator, which comprises a cold insulator having a hollow portion, a cold insulator filled in the hollow portion of the cold insulator, and the cold insulator which can be housed in the housing portion. And a container having an insertion hole communicating with each other, the cold insulator is divided into a plurality, and by combining these into the container, a required number of substantially cylindrical container portions are formed. The cold insulator, wherein the cold insulator is provided with deformation preventing means for preventing deformation due to expansion of the cold insulator during freezing. 3. The cold insulator according to claim 2, wherein a required number of expansion absorbers having a deformation recovery property are mixed and dispersed in the cold insulator. 4. A cold insulator, which comprises a cold insulator having a hollow portion, and a cold insulator filled in the hollow portion of the cold insulator. A cooler in which a required number of expansion absorbers having are mixed and dispersed.