JP2002005551A - Cold-roll box and cool-storage body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cold-storage box and a cool-storage body, which can maintain uniform temperature in the cold roll box efficiently and in a good workability. SOLUTION: The cold-roll box comprises a cold-roll box main body 11 having an article-holding part 13 in the inside, and a cool-storage body 30 placed in the article-holding part 13. In the box main body, a shelf-supporting part 16 is formed on the internal surface 15a of the side 15 opposite to the part 13. An article shelf 20 composed of a base board and a guide 25 for holding the cool-storage body is supported by the edge of the base 21 in the shelf-supporting part 16. A cool-storage body is erected between the side of a guide for holding the cool-storage body and the article-holding part. A cool-storage medium is held in a flat hollow container for the cool-storage body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold roll box for cold-delivery and delivery of foodstuffs and the like, and a cold storage unit thereof.

[0002]

2. Description of the Related Art For example, when transporting foods, medicines, parts or the like in a state where they are kept cool at a predetermined temperature or less, conventionally, casters or the like are provided at the bottom of a heat insulating box having an article storage section provided therein. Using a so-called cold roll box which is free, a cold storage shelf having a net or a hole for dropping cool air downward is provided at the uppermost part of the article storage section of the cold roll box, and the cold storage body is placed. Then, the stored articles were accommodated below the regenerator to keep them cool.

[0003] However, since the cold storage body is disposed only at the uppermost portion of the article storage section, there is a problem that the temperature of the articles stored in the cold roll box is not uniform. In particular, the stored articles disposed below the cold roll box are far away from the cold storage body, do not exhibit a cooling effect, and may not maintain a desired product temperature. Therefore, it was necessary to arrange a large number of regenerators on the upper regenerator shelf to increase the cooling capacity.

[0004] However, even if the number of regenerators in the upper regenerator shelf is increased, the cooling efficiency is lower for the lower articles because the regenerators are located far away and other articles are interposed between the regenerators. However, there is a limit to the space that can be allocated to the cool storage body in the article storage section composed of a limited space, so that the increase in the cool storage body is limited, and a sufficient improvement in the cooling effect cannot be expected. As a result, it has been difficult to keep the article at a desired temperature. Furthermore, even if a plurality of regenerators are accommodated in one place, the entire inside of the article storage section cannot be kept at a uniform temperature, and a temperature difference occurs depending on the location in the article storage section. There is a problem that cannot be done.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has good cooling efficiency, has a sufficient space for storing articles, and keeps the inside of a cold roll box cool at a uniform temperature. Further, the present invention provides a cold roll box and a cold storage unit having good workability for storing and removing the cold storage unit.

[0006]

That is, the invention of claim 1 comprises a cold roll box main body having an article storage section therein, and a cold storage body disposed in the article storage section. In the main body, shelf supports are formed at predetermined intervals in the vertical direction on the inner surfaces of the opposite sides of the article accommodating section, and the shelf supports have a substrate and a cold storage that projects vertically above and below the substrate at positions inside both ends of the substrate. An article shelf comprising a body holding guide portion is supported at both ends of the substrate, and between the cold storage body holding guide portion of the article shelf and a side inner surface of the article storage portion,
The present invention relates to a cold roll box, wherein a cold storage body containing a cold storage agent is stored and held in a flat hollow cold storage body container.

The invention according to a second aspect is characterized in that the substrate of the article shelf according to the first aspect is provided with a ventilation portion penetrating between upper and lower surfaces thereof.

According to a third aspect of the present invention, the cold storage container according to the first or second aspect is characterized in that the cold storage container is a tapered flat-plate-shaped hollow container that is thinner at a front end corresponding to the inner side of the cold roll box. I do.

According to a fourth aspect of the present invention, there is provided a cold storage container according to any one of the first to third aspects, wherein a holding recess is formed on both outer surfaces on the base side corresponding to the entrance side of the cold roll box. It is characterized by becoming.

According to a fifth aspect of the present invention, the cold storage body disposed on the inner side surface of the article accommodating portion in the cold roll box main body has a tapered flat plate shape which is thinner at a front end side corresponding to the inner side of the cold roll box. The present invention relates to a cold storage device for a cold roll box, comprising a cold storage container containing a cold storage agent.

Further, the invention according to claim 6 is characterized in that the regenerator container according to claim 5 is formed by forming concave portions for gripping on both outer surfaces on the base side corresponding to the entrance side of the cold roll box. .

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a front view showing a cold roll box according to an embodiment of the present invention with a door opened, FIG. 2 is an enlarged front view showing a part of an article storage section, and FIG. -3 cross-sectional view, FIG. 4 is a perspective view showing an embodiment of an article shelf, FIG. 4 is a front view and a side view showing an embodiment of a regenerator of the present invention, and FIG. It is the graph which measured the temperature distribution in a roll box.

A cold roll box 10 shown in FIG.
Comprises a cold roll box main body 11 and a regenerator 30 disposed therein. The cold roll box main body 11 is composed of a vertically long, substantially rectangular parallelepiped heat-insulating box having an openable and closable door body 12 attached to the front entrance side. A heat insulating material such as hard polyurethane is embedded in the wall of the cold roll box main body 11.
A caster 14 is provided on the lower surface of the bottom and is movable. In the cold roll box main body 11, an article storage section 13 for storing the cool storage body 30 together with an article P such as food or medicine is formed. The cold roll box main body 11 of this example is provided with an article storage section 13 divided into two upper and lower sections.

As can be seen from the enlarged view of FIG. 2, shelf support portions 16 are formed at predetermined intervals in the vertical direction on inner surfaces 15a of the left and right side portions 15 facing each other in the article storage portion 13. Is provided with an article shelf 20.

The shelf support section 16 is not only formed by an overhang-shaped projection projecting inwardly than the article storage section 13 as in this example, but is also recessed outward from the inner surface 15a of the side section 15. It may be formed by a concave portion. Further, the shelf support portion 16 is not limited to one formed continuously from the entrance side of the cold roll box 10 to the back, and may be formed intermittently. Further, the vertical interval between the shelf support portions 16 is set to an appropriate interval according to the stored articles and the like.

As shown in FIG. 4, the article shelf 20 comprises a substrate 21 and a regenerator holding guide 25 projecting up and down the substrate 21 at a position inside the right and left ends 22, 22 of the substrate 21. Left and right ends 22, 22 of the substrate 21 are placed and supported on the shelf support portion 16.

The substrate 21 has a ventilation portion 23 formed of a large number of groove-shaped openings 21a penetrating between the upper and lower surfaces of the substrate 21, or a net-like portion having a ventilation portion formed of a mesh (not shown). And the like are preferable from the viewpoint of improving the cooling efficiency in the article storage unit 13.

The cold storage body holding guide 25 is provided between the cold storage body 30 and the inner surface 15a of the side portion 15 of the article storage section 13.
It is for holding. The cold storage body holding guide portion 25 of this example is made of a separate member from the substrate 21, and in a state combined with the substrate 21, projects upward on the upper surface side of the substrate 21, and similarly protrudes downward. It is composed of left and right lower guide portions 27 and has a fence-like overall shape with an open front at the entrance side of the cold roll box 10. The side guide 27 is inserted. The substrate 2
The distance between the left and right ends 22 and the cold storage body holding guide portion 25 is slightly larger than the thickness of the cold storage body 30, whereby the cold storage body 30 is moved to the inner surface 1 of the side part 15 of the article storage unit 13.
5a and the cold storage body holding guide 25 are held so as not to fall down, and can be placed on the upper surfaces of both ends 22 of the substrate 21 of the portion.

The substrate 21 and the cold storage body holding guide 25 may be integrally formed. However, if they are formed as separate members as in this example, some of the article shelves 20 may be separated from each other. When the articles P to be accommodated are large or the quantity is large, it is possible to widen the article accommodation space by removing the cold storage body holding guide 25.

As shown in FIG. 5, the regenerator 30 is a flat hollow regenerator container 31 containing a known regenerator. The cold storage container 31 is made of a synthetic resin such as polyethylene, polypropylene, ABS, and polystyrene, and is formed into a generally rectangular flat plate shape by a known blow molding or the like. An inlet 32 for injecting the cold storage agent is formed at one end face of the container 31 on the short side 31a side.

The regenerator 30 of this embodiment is provided with a regenerator container 31 along the inner surface 15a of the side portion 15 of the article accommodating section 13.
Are arranged in such a manner that the short side 31a stands. The shape of the cold storage container 31 of this example is formed in a tapered flat plate shape that is thinner on the front end 34 side corresponding to the inner side of the cold roll box 10. Due to this tapered shape, the side portion 1 of the article storage portion 13 is formed.
It is easy to insert the regenerator 30 into the article storage unit 13 along the inner surface 5, and furthermore, the thickness of the base 35 side of the regenerator body 31 is adjusted to the inner surface 15 a of the side part 15 of the article storage unit and the guide for holding the regenerator. If the interval between the sections 25 is substantially equal to each other, when the cold storage body 30 is completely inserted into the article storage section 13, both sides of the base 35 of the cold storage container 31 are located on the side sections 1 of the article storage section 13.
The regenerator 30 is securely held in contact with the guide 5 and the guide portion 25, and is held without rattling.

Further, the cold storage container 31 of this embodiment is provided at the entrance side (the door 12 side) of the cold roll box 10.
The concave portions 33 for gripping are formed on both outer surfaces on the base portion 35 side corresponding to the above. By doing so, the cold storage body 30
Even in a wet state, the cold storage body 30 can be securely held without slipping by hooking the cold storage body 30 with a finger on the holding concave portion 33. Thereby, the work of putting the cold storage body 30 in and out along the side part 15 of the article storage part 13 becomes easy. The holding recess 33 is not limited to the one provided with two circular recesses on each side as in this example, and may be provided with an appropriate number of other shapes such as rectangular recesses.

Examples of the regenerator filled in the regenerator container 31 include an aqueous solution of an inorganic salt such as sodium chloride, ammonium chloride, and magnesium chloride, an aqueous alcohol solution such as methanol and ethanol, and a known gel for water-soluble polymers. A gelled product obtained by adding an agent is suitable, and these are appropriately selected and used.

In the cold roll box 10 having the above-described structure, first, the article shelves 20 are arranged on the respective shelf supports 16 of the article accommodating section 13, and the articles P are placed on the article shelves 20. An appropriate number of regenerators 30 are arranged at the uppermost article shelf 20 and the lowermost part of the storage section 13 as necessary.

A cold storage body 30 that has been frozen beforehand is stored and held between the cold storage body holding guide portion 25 between the article shelves 20 and the inner surface 15a of the side portion 15 of the article storage section 13. At this time, a finger is hung on the holding recess 33 of the cold storage container 31 to hold the base 35 side of the cold storage container 31, and the short side 31 a side of the cold storage container 31 is raised, and the tapered tip 34 side Is inserted between the cold storage body holding guide portion 25 and the inner surface 15 a of the side portion 15 of the article storage section 13 from the front side of the article storage section 13. As a result, the regenerator 30 is placed on both ends of the substrate 21 of the article shelf 20, as shown in the enlarged view of FIG. 2, and the inner surface 15 a of the side portion 15 of the article storage section 13 and the upper guide 26 of the guide section 25. And between the lower guide 27.

The number of regenerators 30 stored in the article storage section 13 is appropriately determined according to the storage amount of the articles P and the temperature of the cold storage. Absent. For example, when the number of the regenerators 30 is small, an article
By arranging it on the side, the temperature of the article storage section 13 may be uniform.

In the cold roll box 10 and the cold storage body 30, the cold storage body 30 is stored and held without obstructing the article storage space of the article storage section 13 and without falling down. Since the regenerator 30 does not come into contact with the food P or the like, which is the article P, there is no possibility of causing the article P to freeze and burn.

Next, the results of the cold insulation performance test on the cold roll box according to the embodiment of the present invention are shown in comparison with the cold roll box of the comparative example. The embodiment is shown in FIG.
The inner dimensions of the upper and lower article storage sections are 370 × 450 × 704.5 mm, and the overall outer dimensions are 490
A cold roll box body consisting of × 550 × 1570 mm (excluding casters) and a cold storage body, base part thickness 18 mm, tip side thickness 11 mm, short side dimension 100 m
m, a cold storage container having a long side dimension of 360 mm and containing 350 g of a regenerator is used in total, and three of the regenerators are placed on the uppermost article shelf in the upper article storage section, and Four pieces of two pieces were arranged at both ends of the middle article shelf in the article storage section, and the temperatures at the upper and lower positions in the article storage section were measured.

Further, in the cold roll box of the comparative example having the same inner and outer dimensions as the above embodiment, a regenerator having 350 g of a regenerator stored in a regenerator container having a substantially constant thickness over its entirety is placed in the upper article storage section. The temperature was measured at the upper and lower positions in the article storage section by disposing five sheets at the upper part and two sheets at the lower part.

As a result, in the example, as shown in FIG. 6A, there was almost no temperature difference between the upper and lower positions of the article storage portion and about 5 ° C., whereas in the comparative example, it was shown in FIG. 6B. As described above, there was a maximum difference of 8 ° C. between the upper and lower positions, and the lower side had a temperature of about 10 ° C., which was not suitable for keeping cold.

As described above, it was confirmed that the cold roll box and the regenerator of the embodiment can make the temperature distribution in the article storage unit uniform and have excellent cooling efficiency. Further, since the cold roll box and the cold storage body of the embodiment have high cooling efficiency as described above, the amount of the cold storage agent to be used can be reduced. If the amount of the regenerator can be reduced, not only the cost becomes lower, but also the preparation time for storing the regenerator in the freezer and freezing it becomes shorter, leading to an improvement in working efficiency.

[0032]

As shown and described above, according to the cold roll box and the regenerator of the present invention, the cooling efficiency can be extremely high, and the temperature distribution in the article accommodating section can be made uniform. In addition, since the cooling efficiency is high as described above, the amount of the regenerator can be reduced, thereby reducing the cost and shortening the preparation time for freezing the regenerator.

Further, according to the present invention, since the regenerator has a tapered shape on the tip side, it is easy to put the regenerator into and out of the article storage portion. Furthermore, since the cold storage container has concave portions for holding formed on both outer surfaces on the base side corresponding to the entrance and exit side of the cold roll box, the cold storage body can be easily and reliably gripped, and the workability of taking in and out is improved. I do.

[Brief description of the drawings]

FIG. 1 is a front view of a cold roll box according to an embodiment of the present invention, showing a state where a door is opened.

FIG. 2 is an enlarged front view showing a part of an article storage unit.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 1;

FIG. 4 is a perspective view showing an embodiment of an article shelf.

FIG. 5 is a front view and a side view showing an embodiment of a cool storage body of the present invention.

FIG. 6 is a graph showing the measured temperature distribution in the cold roll boxes of the example and the comparative example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cold roll box 11 Cold roll box main body 13 Article storage part 16 Shelf support part 20 Article shelf 21 Substrate 25 Cold storage body holding guide part 30 Cold storage body 31 Cold storage body container 33 Holding concave part

Claims (6)

[Claims] 1. A cold roll box main body having an article storage section therein, and a regenerator disposed in the article storage section, wherein the cold roll box main body has a side inner surface facing the article storage section. A shelf supporting portion is formed at predetermined intervals in the vertical direction, and the shelf supporting portion includes an article shelf comprising a substrate and a cold storage body holding guide portion projecting vertically above and below the substrate at positions inside both ends of the substrate. It is supported at both ends, and a cold storage body in which a cold storage agent is stored in a flat hollow cold storage body container is held and held between a cold storage body holding guide section of the article shelf and a side inner surface of the article storage section. And cold roll box. 2. The cold roll box according to claim 1, wherein a ventilation portion penetrating between upper and lower surfaces of the substrate of the article shelf is formed. 3. The cold roll box according to claim 1, wherein the cold storage container comprises a tapered flat-plate-shaped hollow container which is thinner on a tip side corresponding to the inner side of the cold roll box. 4. The cold storage container according to claim 1, wherein the cold storage box is formed with a holding recess formed on both outer surfaces on the base side corresponding to the entrance and exit side of the cold roll box. Cold roll box as described in. 5. A cold regenerator disposed on a side inner surface of an article storage portion in a cold roll box main body is formed into a tapered flat plate-shaped hollow regenerator body thinned at a front end corresponding to a rear side of the cold roll box. A cold storage box for a cold roll box, comprising a cold storage agent. 6. The cold storage unit for a cold roll box according to claim 5, wherein the cold storage unit container is formed by forming a holding recess on both outer surfaces on the base side corresponding to the entrance side of the cold roll box. .