JP3396161B2 - Cold storage - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regenerator used as a cold-retaining agent for fresh foods and other items that require refrigeration.

[0002]

2. Description of the Related Art Conventionally, a hollow container 31 made of synthetic resin as shown in FIG. 4 has been used as a cooling agent for fresh foods and the like stored in a rectangular box made of Styrofoam instead of ice or dry ice. The regenerator 30 having the regenerator C enclosed therein is placed on the upper opening of the box.
This regenerator 30 is generally housed in a freezing rack R as shown in FIG. 5, and is previously housed in a refrigerator or the like to freeze the regenerator C in the container and then taken out from the rack R to prepare a fresh food product. It is economical because it can be used repeatedly because it is placed on top of the storage box.

Reference numeral 33 in FIG. 4 is an inlet for the cold storage agent C. Further, 34 is a positioning recess for stacking, and a positioning projection (not shown) corresponding to the positioning recess 34 is formed on the opposite surface. Reference numeral 35 denotes a small circular concave portion for increasing rigidity, which is in close contact with the inner surface of the container which faces it.

However, in the regenerator 30, it is inevitable that moisture in the air adheres to the outer surface 32 of the container as so-called dew condensation such as water drops or frost. further,
Since the worker wears gloves such as work gloves in order to prevent the hand from getting cold, when the regenerator 30 is taken out from the freezing rack R, the hand slips and it is difficult to take out the regenerator 30. Was bad.

In order to easily and surely hold the regenerator, a hole-shaped grasping portion (not shown) penetrating the inside and the outside is provided in a part of the hollow container of the regenerator. Although it is possible to eliminate the trouble of taking out from the rack R and carrying it around, in that case, the volume of the cold storage agent stored in the container is reduced by the amount of the grip portion formed of the through hole, and the cold storage agent C to be enclosed is reduced. Since the capacity is reduced, there is a problem that the cold insulation effect is reduced.

Further, when forming the grip portion formed of the through hole, the following problems occur in molding the hollow container. The hollow container is usually formed by a known blow molding method. However, for the gripping portion formed by the through hole, the inner surface of the parison is brought into close contact with it by blow molding, and the close contact portion is cut off after the blow molding. Then, the grip portion formed of the through hole must be formed. for that reason,
There is a problem that not only the blow molding material is additionally required, which is economically disadvantageous, but also an extra cutting operation is required. In addition, since the cutting space is used as the grip portion, the burr of the cutting trace must be carefully removed so that the cutting trace does not damage the hand of the regenerator gripper, which requires a troublesome post-processing.

[0007]

BRIEF Problem to be Solved] The present invention has been made in view of the above, along with eliminating have difficulty by condensation or the like adhering to the cold storage surface, without requiring a complicated and extra steps during manufacture In addition, the present invention provides a regenerator with a novel structure that can be economically manufactured.

[0008]

That is, the present invention is
Freezing rack that holds multiple regenerators in a horizontal orientation
In the cold accumulating material accommodated in, depressed the cold storage body with the refrigerant 13A in the hollow container is made of those enclosed, in the container so that a gap remains between the other side the inner surface of at least one side of the container Thus , a holding recess is formed at the center of the outer surface of the container in the longitudinal direction . It is preferable that the container is a flat plate having a substantially rectangular shape in a plan view, and gripping recesses are provided on both long sides of at least one outer surface of the container.

[0009]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings. 1 is a plan view showing an embodiment of a regenerator according to the present invention, FIG. 2 is an enlarged cross-sectional view taken along line 2-2 of FIG. 1, and FIG. 3 is an enlarged cross-sectional view of a main part showing another example of a grip portion. It is a figure.

The regenerator 10 shown in FIGS. 1 and 2 has a regenerator C enclosed in a hollow container 11, is frozen in a freezing rack R as described in the conventional section, and is then taken out from the rack R. Used. As the regenerator C to be enclosed, an aqueous solution of an inorganic salt such as sodium chloride, ammonium chloride or magnesium chloride, an aqueous alcohol solution such as methanol or ethanol, or a known gelling agent to a water-soluble polymer is added to form a gel. And the like are suitable, and these are appropriately selected and used.

The hollow container 11 is made of a synthetic resin such as polyethylene or polypropylene, and is formed into a flat plate having a substantially rectangular shape in plan view by known blow molding.
An injection port 14 for injecting the cold storage agent C is formed on a side surface of the container 11 on the short side, and the injection port 14 is formed.
Is sealed by, for example, heat welding after the cold storage agent C is injected.

The outer surface 12 on one side and the outer surface 1 on the other side of the container 11
A concave portion 15 for positioning at the time of stacking is formed on one side of the sheet 3, and a convex portion (not shown) for positioning is formed on the other side at several positions respectively corresponding to each other. And
When the regenerators 10 are stacked, the convex portions of the other regenerator containers are fitted in the recesses 15 to prevent lateral displacement and the like, thereby enabling stable stacking. Reference numeral 16 is a small circular concave portion for increasing rigidity, which is provided corresponding to the outer surface 12 on one side and the outer surface 13 on the other side of the hollow container 11, and the bottom surface 16 thereof is provided.
The inside a is in close contact with the bottom surface 16a on the other side. The rigidity increasing recesses 16 also have an effect of efficiently cooling the regenerator material C inside the container 11 when the regenerator 10 is cooled by the refrigerator, and it is preferable to form an appropriate number near the center of the container 11.

Further, in the container 11 of this embodiment,
Grasping recess 20 formed by recessing one side in the container 11
Is provided at the central portion in the longitudinal direction of the outer surface on one side of the container 11. The holding recess 20 has a size that can be easily grasped by the operator's hand, and, as can be seen from the enlarged cross-sectional view of FIG. 2, the operator's finger is grasped when the side portion of the container 11 is grasped. The side surface 2 of the container 11 is located in the holding recess 20.
It is formed apart from 1 by a predetermined distance. Further, the holding concave portion 20 is formed to have an appropriate depth that allows reliable holding, but the bottom portion 22 thereof leaves a gap a between the facing surface, in this example, the inner surface 13a on the other side of the container. Is formed. Thus, at the position of the holding concave portion 20, a gap a is formed in the container.
By leaving the above, the decrease in the internal volume of the container 11 is suppressed, and the storage agent C can be stored also in the holding concave portion 20 so that a sufficient cold storage effect can be obtained.

Further, in this embodiment, the holding recess 2 is provided.
0 is formed on both long sides 17 of the outer surface of the container 11.
By providing the holding recess 20 at this position, as shown in FIG. 5 in the related art, when the cold storage rack 10 is housed in the freezing rack R in an upright position, the worker can hold the holding recess 20. Regardless of the position, the holding recess 2 is always
Since 0 is located on the opening side of the freezing rack R, the efficiency of the work of accommodating and taking out the regenerator 10 by the worker is improved.

Further, as in the other example shown in FIG. 3, it is preferable that the holding recesses 20A are provided on both long side 17 sides of both outer surfaces 12, 13 of the container 11. That way, container 1
Since the operator's fingers are caught in the holding recesses 20A on both surfaces of the cold storage body 1, the regenerator 10 can be held more reliably. Also in this case, the opposing gripping recesses 20A,
The bottom portions 22A, 22A of 20A do not adhere to each other,
There is a space left between 22A for storing the cold storage agent C. In FIG. 3, the same reference numerals as those in the embodiments of FIGS. 1 and 2 indicate the same parts. The holding recesses 20 and 2
In the present embodiment, 0A has a substantially semicircular shape in a plan view as shown in the drawing, but is not limited to this.

[0016]

As shown and described above, according to the regenerator of the present invention, since the container has the holding concave portion on the outer surface thereof,
Even if the surface of the regenerator is slippery due to dew condensation or the like, the regenerator can be reliably gripped, and the workability can be improved. Furthermore, since the holding recess is not a through hole and a gap remains in the container at the position of the holding recess, the reduction of the storage capacity of the cold storage agent due to the formation of the holding recess is minimized. It is possible,
A sufficient cooling effect can be obtained.

Further, if the hollow container of the regenerator is a flat plate having a substantially rectangular shape in plan view and holding concave portions are formed on both long sides thereof,
When storing or taking out to / from the freezing rack, the holding recess will always be located on the opening side of the freezing rack regardless of which long side is up or down. There is no need to perform work, and workability is extremely good.

Further, since the cold accumulating body of the present invention can form the holding concave portion at the time of blow molding and the post-processing for cutting the resin for forming the holding concave portion after the blow molding is unnecessary.
Not only the yield is good, but also the burr removal work for smoothing the excision trace is not required, and the cool storage body can be manufactured economically and efficiently.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a regenerator according to the present invention.

FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG.

FIG. 3 is an enlarged cross-sectional view of a main part showing another example of the grip portion.

FIG. 4 is a plan view showing an example of a conventional regenerator.

FIG. 5 is a perspective view showing an embodiment of a freezing rack for collectively refrigerating the regenerator.

[Explanation of symbols]

10 Regenerator 11 Hollow Container 15 Positioning Recess 16 When Stacking Stiffness Increasing Recess 17 Long Side 20 Gripping Recess C C Regenerator R Freezing Rack

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Claims (2)

(57) [Claims] 1. A plurality of regenerators are horizontally long and stand upright.
In the regenerator stored in the freezing rack,
Body consists of those the refrigerant 13A in the hollow vessel is sealed when co
In the longitudinal direction of the outer surface of the container, at least one side of the container is depressed into the container so that a gap remains between the inner surface and the other side.
A regenerator with a holding recess formed in the center . 2. The regenerator according to claim 1, wherein the container is a flat plate having a substantially rectangular shape in a plan view, and the holding recesses are provided on both long sides of at least one outer surface of the container. .