JPH074228Y2 - Cold storage container - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention mainly relates to a cold storage container suitable for precooling and shipping of vegetables.

[Problems to be solved with conventional technology] Generally, when shipping and transporting raw vegetables such as strawberries, pods, carrots, lettuce, spinach, and broccoli to a distant place, these vegetables are stored in a heat-insulating box or the like. Vacuum precooling and differential pressure precooling are performed in the state of being housed in a container and kept in a cold state.

For example, in the differential pressure pre-cooling, as illustrated in FIG. 8, a large number of containers (A) containing vegetables are stacked in a cooling chamber (B) and arranged side by side in a row, and cool air is cooled by a cooling device (C). While supplying into the cooling chamber (B), a pressure difference is provided on both sides of the row of the containers by a blowing means such as a fan or a suction means.
The vegetables in the container are cooled by circulating cold air through the container portion.

As such a container for precooling and shipping, it has a heat insulating property for keeping cold, and at the same time, a part of it can be opened during precooling. It is necessary that cold air can flow through the container containing the vegetables.

Conventionally, as a cold insulation container used for this type of differential pressure precooling, as shown in FIG. 9, for example, a container body (10 ′)
At least one side wall (2 ') (2') facing each other
There is provided an opening (3 ') for circulating cold air so that cold air can flow through the container (A') during precooling.

However, as described above, the opposite side walls (2 ')
Providing a simple opening (3 ') in (2') accelerates the temperature rise after precooling and makes it easier for water of vegetables to evaporate.
Therefore, it is necessary to close the openings (3 ') with an adhesive tape or the like after precooling, and in particular, the openings (3') are provided in at least opposite side walls (2 ') (2'). Therefore, the closing work is troublesome and extremely troublesome.

Also, as shown in FIG. 10, the side walls (2 ') facing each other.
On the upper part of (2 ') is provided an openable and closable mouth portion (5') provided with a freely fittable occlusion body (4 ') so that the mouth portion (5') is opened during the precooling. There is also a container (A ') formed in this way, but in this case as well, after cooling, the small mouth portion (5') of the side walls (2 ') (2') is also closed in the same manner as described above.
Must be closed by the fitting, and the work is extremely troublesome.

In view of the above, the present invention provides a lid body that closes the upper opening of the container body so that it can be pulled out to one side, so that the lid body can be easily inserted and removed during and after precooling from one side of the container. Another object of the present invention is to provide a cold insulation container in which both sides of the container can be partially opened and closed at the same time and differential pressure precooling can be suitably performed.

[Means for Solving the Problems] A cold storage container of the present invention for solving the above problems comprises a container body made of synthetic resin foam and a lid body fitted inside the opening of the container body. Has a stepped portion inside the opening, which is notched so that an upper end thereof is flush with the stepped portion on one side wall of the four side walls, and a recessed portion dropped from the notched portion. A part is formed, and the other lid body is provided such that one end fits in the cutout portion and can be pulled out to one side from the cutout portion, and a drooping protrusion fitted on the lower surface of the one end portion fits in the recessed portion. A portion is provided, and the recessed portion can be opened by pulling out the lid.

In the above, it is particularly preferable that a notch is provided at the upper end of the side wall of the container body opposite to the side where the lid is pulled out, and a projection that fits into the notch is provided at the end of the corresponding lid. Is.

[Operation] According to the cold insulation container of the present invention having the above-mentioned configuration, in the state where the lid body is fitted inside the opening of the container body, the lid body is located at one side of the cutout portion at the upper end of one side wall of the container body. When the lid body is pulled out by more than the thickness of the side wall, the hanging protrusion on the lower surface of one end of the lid body is pulled out from the recessed portion on the side wall on the drawer side. The recessed portion opens. At the same time, on the opposite side portions, the side end of the lid body is separated from the side wall and opens at least upward.

Therefore, when carrying out the differential pressure pre-cooling by stacking the cold-insulating containers of the present invention in multiple stages in a cooling chamber and arranging them side by side in rows, only one side of the rows of the containers needs to pull out the lid of each container by the required length as described above. Thus, both side portions of the container can be partially opened at the same time as ventilation portions, and both side portions of the container can be communicated with each other. When differential pressure precooling is performed in this state, cold air flows through the opening and the container due to the pressure difference between the one side and the other side of the container row, and the vegetables and the like in the container are cooled by this cold air flow. It

Further, after the differential pressure precooling, the lid body pulled out to one side of the container may be pushed in again, whereby the drooping convex portion on the lower surface of one end fits into the concave cutout portion on one side wall of the container body. Then, it is held in a predetermined closed state and can be kept in a cold state.

In particular, when the upper end of the side wall on the side opposite to the drawer side is notched and the corresponding end of the lid is provided with a protrusion that fits into the notch, the protrusion of the lid causes protrusion. Even if the upper end of the side wall is opened laterally by removing from the notch and there is no space between the upper and lower containers stacked in multiple stages, the container is connected from one side to the other side.

[Embodiment] Next, an embodiment of the present invention will be described with reference to FIGS.

In the figure, (10) is a container body made of synthetic resin foam and having a substantially rectangular shape in plan view, and (20) is a lid body made of the same material as described above, which is fitted into the inside of the opening of the container body (10) from above. It is free and can be pulled out to one side as described below.

Inside the opening of the container body (10), a step (11) is provided for receiving the lid (20) fitted in the opening. The step portion (11) may be provided only on both side walls (12a) (12b) facing each other along the pulling direction of the lid (20), but as shown in the figure, the other side wall facing each other. (12c) (12d)
It is desirable to continuously form the stepped portion (11) inside the upper end of the.

One side wall (12) of both side walls (12c) (12d) facing each other
The upper end of c) is cut out so as to be flush with the step (11), and a part of the central upper portion of the side wall (12c) is further dropped from the cutout (13). A recessed portion (14) communicating with the inside and outside of the container is provided.

The upper end of the side wall (12d) facing the side wall (12c) is flush with the step (11) at a part such as the center of the projecting edge (15) outside the step (11). A notch (16) is formed.

On the other hand, the lid body (20) has a notched portion (13) at one end (22c) on the side corresponding to the side wall (12c) in a closed state in which the lid body is fitted inside the opening of the container body (10). It is provided so as to be fitted in, so that it can be pulled out to one side from the notch (14). In particular, since the synthetic resin foams are brought into contact with each other, the synthetic resin foams are brought into sliding contact with each other in an elastically fitted state to give a predetermined withdrawal resistance. Further, a drooping convex portion (24) fitted to the recessed portion (14) is provided on the lower surface of the one end portion (22c), and the recessed portion (14) is pulled out by pulling out the lid body (20). It is configured to open. Further, a projecting portion (26) that fits into the cutout (16) is extended to the opposite end (22d), and the projecting portion (26) is cut out by pulling out the lid (20). 16) Removed from the notch (16)
Is designed to open to the side. The notch (16) and the protrusion (26) can also be formed by further dropping like the recess (14) and the drooping protrusion (24).

The concave portion (14), the hanging convex portion (24) fitted to the concave portion, the notch (16) and the protruding portion (2) fitted to the notch (16).
6) is not limited to one as shown in the figure, but can be multiple. Further, their size and shape can be appropriately set.

In the case of the embodiment shown in the drawing, the convex portions (17) corresponding to each other at the upper and lower ends of the four corners of the container body (10) are provided with concave portions (18), and when a plurality of containers (A) are stacked, The convex portion (17) and the concave portion (18) of the container (A) (A) are fitted to each other. Particularly, the convex portion (17) is the concave portion (18)
Is slightly higher than the depth of the container, and the bottom of the upper container (A) when stacked is a lid of the lower container (A) (20).
It is provided so that it does not come into contact with, so that the lid body (20) can be pulled out in a stacked state without any trouble.

Further, the bottom surface of the bottom of the container body (10) is provided with a recessed portion (19) communicating in the vertical and horizontal directions, and in the stacked state as described above, a space (s) is formed between the upper and lower containers (A) (A). I am able to raise my child.

In particular, as described above, the space (s) is formed between the upper and lower containers (A) and (A).
When holding the notch (1) on the side wall (12d) side
6) and the protruding part (26) fitted to this can be omitted so that the lid (20) is opened only when it is pulled out. Therefore, it is preferable to form the side wall (12d) so that it can be opened as in the illustrated embodiment.

Examples of the synthetic resin foam which is a constituent material of the container body (1) and the lid (2) include polystyrene and a styrene resin foam such as a copolymer mainly containing styrene, a polyolefin resin foam, and a polyresin. A vinyl chloride resin foam or other synthetic resin foam can be used, and in particular, a reinforcing skin layer made of a non-foamed resin can be provided on the surface of the foam.

In the cold insulation container (A) configured as described above, the vegetables (a) are stored in the container, and the lid body (20) is attached to the container body (10).
The stepped portion (11) inside the opening is fitted so as to come into contact with the stepped portion (11) and the lid is closed (FIGS. 2 and 3). When performing differential pressure precooling, the required number of the containers (A) are stacked in the cooling chamber (B) in multiple stages as shown in FIG. At this time, both side walls (12
c) Arrange so that (12d) is on both sides of the row of containers.

Then, in this state, when the lid (20) of each container (A) is pulled toward the side wall (12c) by more than the thickness of the side wall (12c), the drooping protrusions on the lower surface of one end of the lid (20). The part (24) is removed from the recessed part (14) to open the recessed part (14), and at the other end side, the end face of the lid (20) is separated from the side wall (12d). While the space between the end surface and the side wall (12d) is opened upward, the protrusion (26) is pulled out from the notch (16) of the side wall (12d) and opened laterally (see FIGS. 5, 6 and 6). (Fig. 7). In particular, since the lid body (20) is provided so as to be pulled out laterally, both side portions can be partially opened by only pulling out operation from one side as described above.

In this state, while supplying cool air into the cooling chamber (20), using a blowing means such as a fan or a suction means,
While supplying cold air into the cooling chamber (B), the lid (20)
By making a pressure difference between the side from which the cold air is drawn and the other side, the cold air is circulated from one side to the other side. This cold air flows into the container (A) through the opening formed by the recessed portion (14) of the side wall (12c) on one side and flows inside the container, and the side wall (12d) on the other side and the end surface of the lid (20). It flows out from the opening part between or and the opening part by the notch (16). In this way, the vegetables (a), which are the items stored in the container, are cooled while the cool air flows through the container (A).

When pre-cooling is completed by cooling for a certain period of time, the protrusion (26) fits into the notch (16) and the drooping protrusion (24) is simply pushed in by pushing the lid (20) pulled out as described above. ) Is fitted in the recessed portion (14), and a predetermined closed state is established. As a result, the vegetable (a) in the container can be kept in a cold state and can be shipped as it is.

Also when confirming the vegetables (a) in the stacked containers (A) during transportation, if the lid (20) is pulled out by the required length in the same manner as above, a part of the side wall is opened. Confirmation is easy. Further, although the lid body (20) can be pulled out to one side, the lid body (20) and the container body (10) are made of synthetic resin foam. By elastically fitting the body (20),
Although it does not come out naturally, it can be pulled out by applying a certain amount of force.

The container (A) of the present invention is not limited to the above-described differential pressure pre-cooling, but also in so-called vacuum pre-cooling in which the cooling chamber is decompressed and vacuumed to be cooled, similarly to the above, by pulling out the lid body (20) before pre-cooling. It can be used by partially opening both sides of the container and pressing the lid (20) after precooling to close the lid.
The opening and closing operation can be easily performed.

[Advantages of the Invention] As described above, according to the cold insulation container of the present invention, not only is it made of synthetic resin foam and has excellent heat insulating properties, but also the lid body is pulled out to the side so that both sides of the container body facing each other are opposed to each other. Since a part of each portion can be easily opened, differential pressure pre-cooling can be easily performed, and the cool air can be reliably flowed from one side to the other side in the container. Even when a large number of containers are stacked and arranged side by side, part of both sides can be opened at the same time by only pulling out the lid from one side of the row of the containers, and after precooling, the above-mentioned lids are opened. It is possible to close the openings on both sides simply by pushing in the body, which makes opening and closing operations extremely easy and efficient.

In addition, in the closed state, the lid body fits inside the opening of the container body, and the drooping protrusion fits in the recessed portion of the side wall, so that it can be reliably held in a predetermined closed state, and the constituent material is Combined with the fact that it is made of synthetic resin foam, it is possible to maintain a good cold state.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention in which a container body and a lid are separated, and FIG. 2 is a perspective view in which the lid is fitted to the container body.
FIG. 3 is a sectional view taken along line III-III in the previous figure, FIG. 4 is a perspective view in which a lid is partially pulled out, FIG. 5 is a sectional view of the same as above, FIG. 6 is a perspective view from below the container, and FIG. The figure shows the cross section of the pre-cooled state, No. 8
The drawings are explanatory views of a differential pressure precooling system, and FIGS. 9 and 10 are perspective views each illustrating a conventional cold insulation container used for differential pressure precooling. (A) …… Cold container, (10) …… Container body, (20) ……
Lid, (11) ... Step, (12a) (12b) (12c) (12d)
…… Side wall, (13) …… Cutout, (14) …… Recessed, (1
5) …… Convex edge, (16) …… Notch, (22c) (22d) ……
End of the lid, (24) ...... hanging protrusion, (26) ...... protrusion,
(A) ... Vegetables, (B) ... Cooling chamber, (C) ... Cooling device.

Claims (1)

[Scope of utility model registration request] 1. A container main body made of synthetic resin foam and a lid fitted inside the opening of the container main body. The container main body has a stepped portion for receiving the lid inside the opening, and has four steps. An upper end of one side wall is cut out so that the upper end thereof is flush with the stepped portion, and a recessed part that is dropped from the cutout is formed.On the other hand, one end of the lid is formed in the cutout. It is provided so as to be fitted and can be pulled out to one side from the cutout portion, and a drooping convex portion that fits into the concave cutout portion is provided on the lower surface of the one end portion, and the concave cutout portion is formed by pulling out the lid body. A cool container characterized by being configured to be openable.