JP2001253437A - Heat regenerative body container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat regenerative body container equipped with fitting parts which allow the containers to be attached with one another easily regardless of the directions without bringing play even when the containers are piled up and make the containers easily detachable from one another. SOLUTION: Each of positioning dents 20 is formed of protuberant parts 21 and an inside bottom face 22, and each of positioning protuberances 25 is formed in a shape fitted into the positioning dent. The relation between the distance (a) from the general surface of the container to the front end of the protuberant part and the distance A from the general surface to the center at the top of the protuberance is (a)=A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regenerator container which contains a regenerator therein and which is used for freezing other articles after freezing the regenerator.

[0002]

2. Description of the Related Art Conventionally, a regenerator container is formed of a hollow plastic flat plate capable of storing a regenerator therein, and is used for freezing, storing or transporting the regenerator.
A plurality of them were stacked and placed on the bottom of a freezer, warehouse, or transport vehicle. In addition, on both outer surfaces of the cold storage container, collapse (falling) occurs when the cold storage containers are stacked.
In order to prevent this, positioning concave portions and convex portions are formed at appropriate positions, and the positioning concave portions and convex portions of the cold storage containers which are vertically arranged at the time of stacking are fitted to each other.

[0003] Further, the positioning concave portion and the convex portion form a predetermined gap between upper and lower regenerator containers to prevent the regenerator containers from sticking to each other when the regenerator containers are stacked and stored in a freezer. This also has the effect of increasing the cooling efficiency.

As a conventional cold storage container having the positioning concave and convex portions, for example, as shown in FIG. 7 and a cold storage container 40 shown in FIG. Positioning convex portion 41 protruding outward from 40a
In some cases, only the shallow concave portion 42 which is recessed from the general surface 40a into the container 40 is provided on the other outer surface.
Reference numeral 43 is a cool storage agent storage space.

However, in the cold storage container 40, the surface having the positioning projection 41 and the positioning recess 42
Are distinguished, the orientation (front and back) is checked for all of the cold storage containers 40 when they are stacked, and the cold storage containers 40 are positioned so that the positioning projections 41 or the positioning recesses 42 are in the same direction. The orientation had to be aligned, and the handling work was very complicated.

If the cold storage containers 40 are stacked in the wrong orientation (front / back), the positioning projection 41 and the recess 4
2 does not fit, and the cold storage container is easily collapsed. Moreover, since the outer surfaces of the upper and lower regenerator containers 40 are closely contacted between the regenerator containers 40 stacked so that the outer surfaces where the positioning recesses 42 exist overlap each other, each regenerator is frozen when the regenerator is frozen in the freezer. Cold air does not efficiently contact the container 40, and extra freezing time is required. Further, the cold storage agent freezes and expands in volume, whereby the cold storage container 40
Since the outer surface of the heat storage body 40 expands outward, the cold storage containers 40 that are vertically stacked closely are more likely to collapse. Further, since the positioning convex portion 41 and the concave portion 42 are formed of low or shallow curved surfaces, there is also a problem that the regenerator body container collapses due to a weak engaging force at the time of stacking and a slight force or inclination. there were.

Further, as shown in FIG. 9 and a cold storage container 50 shown in FIG. 10 which is a sectional view taken along the line Z-Z, a positioning concave portion 52 and a positioning convex portion 51 are provided on both outer surfaces so as to be at diagonal positions. In some cases, the containers 50 can be stacked without distinction between the front and back surfaces.
Reference numeral 53 is a cool storage agent storage space.

However, in the cold storage container 50, positioning projections 51 protruding outward from the general surface 50a.
In addition, since both positioning recesses 52 recessed from the general surface 50a into the container 50 are present on the same surface and at diagonal positions, it is inevitable that the lowermost container 50 is rattled or tilted when the cold storage containers 50 are stacked. In addition, there is a problem that the regenerator body containers 50 stacked at a right angle are easily inclined due to a large inclination.

In this type of cold storage container, a plurality of cold storage containers are stacked and accommodated in a freezer or a packing case. However, when the space is small, the stacked cold storage containers are raised. It may be necessary to slide them out side by side in order. In order to facilitate the removal by the slide, the fitting of the positioning concave portion and the convex portion may be made shallow, but if the fitting is made shallow, the collapse at the time of stacking is liable to occur.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and there is no distinction between front and back when stacked.
In addition, the present invention provides a cold storage container provided with a positioning fitting portion which does not rattle even when stacked and which is easily detachable during stacking.

[0011]

Means for Solving the Problems That is, this claim 1
The invention has a flat plate shape having a cold storage agent accommodating space therein, and positioning recesses and projections are formed at predetermined positions on both outer surfaces when stacking the cold storage containers, and the other cold storage containers are stacked when the cold storage containers are stacked. In the cold storage container adapted to be fitted with the corresponding positioning projections and depressions, the positioning depressions have a raised portion projecting outward with respect to a general surface where the positioning depressions and the projections are not present, and the protrusions. The positioning convex part has a protruding shape that fits into the positioning concave part of the other cold storage container, the distance a between the general surface and the tip of the raised part, the general surface A = A, wherein a relationship between the distance A and the tip of the positioning convex portion is a = A.

According to a second aspect of the present invention, the positioning protrusion is
A central projection fitted into the positioning recess of the other cold storage container, and an outer peripheral projection formed around the center projection and abutting against the protruding tip of the positioning recess in the other cold storage container. It has a stepped shape, and has a distance a between the general surface and the tip of the protruding portion, a distance b between the tip of the protruding portion and the inner bottom surface, a distance A between the general surface and the tip of the positioning convex portion, and a tip of the positioning convex portion and the outer periphery. The relationship at the distance B between the protrusions is a> b, A
> B, a = A, b = B.

According to a third aspect of the present invention, the raised portion is formed of an annular shape.
≧ b ≧ 2 mm. Claim 5
In the invention, the gap d between the containers at the time of stacking the cold storage containers is described.
Is 8 mm ≧ d ≧ 3 mm. The invention according to claim 6, wherein the raised portion of the positioning concave portion has an expanded shape whose inner diameter increases toward the tip, and the positioning concave portion in the positioning convex portion. It is characterized in that the shape of the part that fits in is reduced in outer diameter toward the tip. The invention according to claim 7 is characterized in that a groove portion communicating with the inside and outside of the positioning recess is formed in the annular ridge of the positioning recess.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. 1 is a perspective view showing a cold storage container according to one embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line XX of FIG. 1, FIG. 3 is a cross-sectional view showing a part of FIG. Sectional drawing which expands and shows the fitting state of the positioning recessed part and convex part at the time of stacking a cold storage container, FIG. 5 is a side view which shows the state which mounted the cold storage container on a plane, FIG. FIG.

The cold storage container 10 shown in FIGS.
It is formed of a hollow flat plate having a cold storage agent accommodating space 12 inside, and positioning concave portions 20 and convex portions 25 for stacking cold storage containers are formed at predetermined positions on both outer surfaces thereof, and a cold storage body as shown in FIG. When the containers 10 are stacked, they are fitted with the corresponding positioning convex portions 25 and concave portions 20 of another cold storage container 10A.

The cold storage container main body 10 is made of a suitable synthetic resin such as polypropylene, polyethylene, ABS, etc., and in this example, is formed into a generally rectangular hollow flat plate in plan view by known blow molding or the like. This container 10
An injection port 13 for injecting a known regenerator is formed on the side surface on the short side. The injection port 13 is sealed with a cap or the like after storing the regenerator. Further, flange portions 14 are formed on the long side surface of the container 10.

The positioning recesses 20 and the projections 2 are, as is well understood from FIGS.
It comprises a protruding portion 21 protruding outward with respect to the general surface 11 where no 5 exists, and an inner bottom surface 22 surrounded by the protruding portion 21. The raised portion 21 is preferably annular as in this embodiment.

In this embodiment, as defined in claim 7, the annular ridge 21 in the positioning recess 20 is provided with a groove 23 communicating the inside and outside of the positioning recess 20 with the annular ridge 21. The groove 23 prevents water droplets from staying on the inner bottom surface 22 in the positioning recess 20 and facilitates removal of dirt attached to the inner bottom surface 22. In particular, if water accumulates in the positioning recess 20, not only does the accumulated water in the positioning recess 20 spill when handling the cold storage container 10, causing not only a problem that a worker or an object to be cooled is hung, but also the cold storage container 10. During the stack freezing, the accumulated water in the positioning recesses 20 freezes and expands in volume, impairing the fitting between the positioning recesses 20 and the positioning projections 25, and causing the cold storage containers 10 stacked upward to easily fall down. It will be easier. The groove 23 is extremely effective in solving such a problem.

The depth of the groove 23 is determined by the positioning recess 20.
The height is set to an appropriate value from the tip 21a of the raised portion 21. However, as in this example, the depth from the tip 21a of the raised portion 21 to the general surface 11 is suitable for drainage and removal of dirt. The number of the groove portions 23 is appropriately set for one positioning concave portion 20, and is two in this example. Further, the groove portion 23 may be formed in two different directions, for example, in the longitudinal direction of the cold storage container 10 and in the width direction orthogonal thereto, to further improve the drainage property.

As shown in FIG. 6, the positioning convex portion 25 is located in the positioning concave portion 20 of the other cold storage container 10A when the cold storage container 10A is stacked with another cold storage container 10A having the same structure. In this example, the central projection 26 and the raised portion 2 of the positioning recess 20 formed around the central projection 26 in the other cold storage container 10A are fitted.
It has a two-step protruding shape with an outer peripheral protruding portion 27 abutting on one end 21a.

The positioning concave portion 20 and the convex portion 25 are arranged so that the front and back and the direction of the container 10 are not distinguished when the containers 10 are stacked, and the handling is not restricted.
In this example, positioning recesses 20 are formed at diagonal positions on both outer surfaces of the container 10 at a required distance, and positioning protrusions 25 are formed at other diagonal positions at a required distance, and positioning recesses formed on each surface are formed. The positioning projection 20 and the positioning projection 25 are located at the corners of the rectangle.

As can be seen from the enlarged views of FIGS. 3 and 4, the distance between the general surface 11 of the positioning recess 20 and the tip 21a of the raised portion 21 is a, and the distance between the general surface 11 and the tip of the positioning convex portion 25 is a. Assuming that the distance between them is A, it is preferable that a = A. With such a dimensional relationship, as shown in FIG. 5, when the cold storage container 10 is placed on a place such as a flat surface, rattling is eliminated, and stacking can be performed stably.

Further, when the positioning projection 25 is formed as a two-stage projecting shape of a center projection 26 and an outer projection 27 as in this embodiment, the tip 21a of the projection 21 and the inner bottom surface 22 are formed. Distance b, distance A between the general surface 11 of the positioning projection 25 and the tip of the central projection 26 (= tip of the positioning projection 25), distance between the tip of the center projection 26 (= tip of the positioning projection 25) and the outer circumference The relationship of the distance B between the protrusions 27 is a>
Preferably, b, A> B, a = A, and b = B.

By arranging the dimensional relationship between the positioning concave portion 20 and the convex portion 25 as described above, the tip of the center projection 26 of the positioning convex portion 25 is positioned inside the positioning concave portion 20 during stacking as shown in FIG. Since it comes into contact with the bottom surface 22 and the tip of the outer peripheral projection 27 of the positioning projection 25 comes into contact with the tip of the protruding portion 21 of the positioning recess 20, it is possible to securely fit and stably stack.

The positioning concave portion 20 and the positioning convex portion 25
Is preferably 5 mm ≧ b ≧ 2 mm, that is, the value of b (= B). With this range, the positioning concave portion 20 and the positioning convex portion 2 are formed.
5 enables reliable fitting and easy releasing when the containers 10 are stacked.

Further, the value d of the inter-container gap S when the regenerator containers 10 are stacked, in this embodiment, ab + A = AB
It is preferable that the value d of + a satisfies 8 mm ≧ d ≧ 3 mm. If the value d (the inter-container gap S) is smaller than the above range, for example, in the cold storage containers 10 stacked in the freezer, the cold storage agent in each of the cold storage containers 10 expands in volume due to freezing, whereby the cold storage material is expanded. The central part of the container 10 expands outward and comes into contact with the other upper and lower regenerators 10A, and the regenerator container 10 collapses, and it becomes difficult for cold air to enter between the regenerator containers 10, and the freezing time for the regenerator is reduced. Is likely to occur. If d (inter-container gap S) is larger than the above range, the whole of the cold storage containers 10 becomes bulky when the cold storage containers 10 are stacked, and the number of the cold storage containers 10 that can be accommodated in the limited space of the freezer decreases. There is a problem.

Further, the positioning concave portion 20 and the convex portion 2
5 is that the raised portion 21 of the positioning recess 20 has its tip 21a
In this case, a portion of the positioning protrusion 25 that fits into the positioning recess 20, in this example, the center projection 26 has an outer diameter f toward its tip 26 a.
It is preferable to make the structure smaller. By doing so, the positioning recess 20 at the time of stacking the containers 10
The fitting release is facilitated from the secure fitting state of the positioning protrusion 25 and the positioning protrusion 25. In other words, when taking out one cold storage container one by one from a plurality of cold storage containers stacked and housed in a freezer or a packing case, the cold storage container can be taken out by sliding the cold storage container in the lateral direction without lifting up so much. Become.

[0028]

As described above, according to the cold storage container according to the first aspect of the present invention, when stacking the cold storage containers, the operation can be performed without distinguishing the front and back and the direction of the cold storage containers. And the cold storage containers can be reliably stacked without rattling or tilting.

According to the second and third aspects of the present invention, the cold storage containers can be stacked more reliably and stably. According to the invention of claim 4, the positioning recess and the projection are securely fitted to each other when the cold storage containers are stacked, and the fitting release when the cold storage container is removed from the stacked state is easy. .

According to the fifth aspect of the present invention, since an appropriate gap is formed between the stacked cold storage containers, the cold storage containers are accommodated in the freezer in a stacked state, and the cold storage agent in the cold storage container is stored. When freezing is used, it is possible to efficiently perform freezing, and since the refrigerating state of the regenerator becomes uniform among the regenerator containers, there is an effect that the use time of the regenerator is not varied.

According to the sixth aspect of the present invention, since the positioning concave and convex portions have a structure in which detachability is added, stable stacking can be performed while maintaining a secure fitting property. In addition, the cold storage container can be easily taken out of the stacking state in the packing case or the freezer,
Good workability.

According to the seventh aspect of the present invention, it is possible to prevent water from staying in the positioning recess and to easily remove dirt attached to the positioning recess. Further, when the regenerator containers are stacked and housed in a freezer, if there is water remaining in the positioning recess, the water stays frozen and expands in volume, thereby impairing the fitting between the positioning recess and the convex portion, Although the cold storage container easily falls down, such a problem can be solved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cold storage container according to one embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is an enlarged sectional view showing a part of FIG. 2;

FIG. 4 is an enlarged cross-sectional view showing a fitting state of positioning concave portions and convex portions at the time of stacking the cold storage containers.

FIG. 5 is a side view showing a state where the cold storage container is placed on a flat surface.

FIG. 6 is a perspective view showing a stacked state of cold storage containers.

FIG. 7 is a perspective view showing one embodiment of a conventional cold storage container.

FIG. 8 is a sectional view taken along the line YY of FIG. 7;

FIG. 9 is a perspective view showing another example of a conventional regenerator.

FIG. 10 is a sectional view taken along the line ZZ in FIG. 9;

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 cold storage container 12 cold storage agent storage space 20 positioning recess 21 ridge 22 inner bottom surface 25 positioning projection 26 center projection 27 outer projection

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E006 AA03 BA01 CA01 DA03 DA04 DB03 DB05 3E033 AA20 BA15 BA16 CA20 EA20 FA03 GA02

Claims (7)

[Claims] 1. A cold storage container having a cold storage agent storage space therein, and positioning recesses and projections for stacking cold storage containers formed on both outer surfaces thereof at predetermined positions. In the cold storage container adapted to be fitted with the corresponding positioning projections and recesses of the container, the positioning recesses have a raised portion projecting outward with respect to a general surface where the positioning recesses and projections are not present. An inner bottom surface surrounded by a protruding portion, wherein the positioning convex portion has a protruding shape fitted into a positioning concave portion of the other regenerator container, a distance a between the general surface and the protruding portion tip, the general A relation between the surface and the distance A between the tip of the positioning projection and a distance A is a = A. 2. A center projection that fits into a positioning recess of the other cold storage container, and a projection of the positioning recess in the other cold storage container formed around the center projection. It consists of a two-step projecting shape with an outer peripheral projection abutting on the tip of the portion, a distance a between the general surface and the tip of the raised portion, a distance b between the tip of the raised portion and the inner bottom surface, The relationship between the distance A and the distance B between the tip of the positioning projection and the outer peripheral projection is as follows: a> b, A> B, a = A, b
= B. The regenerator container according to claim 1, wherein = B. 3. The cold storage container according to claim 1, wherein the raised portion has an annular shape. 4. The cold storage container according to claim 2, wherein 5 mm ≧ b ≧ 2 mm. 5. A gap d between containers when stacking cold storage containers.
5. The cold storage container according to claim 1, wherein 8 mm ≧ d ≧ 3 mm. 6. The raised portion of the positioning concave portion has an expanded shape whose inner diameter increases toward the distal end, and the shape of the portion of the positioning convex portion that fits into the positioning concave portion has a smaller outer diameter toward the distal end. The cold storage container according to any one of claims 1 to 5, wherein 7. The cold storage container according to claim 3, wherein a groove communicating with the inside and outside of the positioning recess is formed in the annular ridge of the positioning recess.