JPH0720047Y2 - Container lid structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a cool container in which a refrigerant container is housed inside a lid, such as frozen food, raw meat, ham, sausage, fish meat, raw vegetables, dairy products. The present invention relates to a structure of a lid of a cold storage container used as a shipping container or a packaging for shipping and transporting products such as various chemicals, frozen desserts such as ice cream, confectionery such as cakes, fresh fish and the like that require cold storage.

[Prior Art] Conventionally, in a container used for shipping, transporting, or packaging of this type of product that needs to be kept cold, a lid body that can be fitted into the container body has a recessed central portion on the upper surface. In addition, a lid plate other than the lid body is fitted into the recessed portion to form a double structure, and by utilizing this double structure, the inside thereof, that is, the recessed portion space is used as a storage chamber and cooling is performed. There has been proposed a container capable of accommodating a refrigerant retaining material such as a cooling material and a cold storage material.

The applicant of the present invention also provides a convex portion on which the refrigerant holder can be placed on the bottom wall of the recessed portion space that serves as a storage chamber for the refrigerant holder, and provides a space between the bottom wall surface and the protrusion. Therefore, a lid structure with improved cold air flowability has been proposed (Japanese Utility Model Publication No. 2-4916).

[Problems to be Solved by the Invention] However, when the refrigerant retaining body accommodated in the accommodation chamber is smaller than the accommodation chamber, it is not possible to completely prevent the refrigerant retaining body from moving or being biased during transportation.

On the other hand, if a refrigerant retaining body having a size formed in accordance with the compartment of the accommodation chamber of the refrigerant retaining body is used, the movement of the refrigerant retaining body during transportation can be restricted, which is desirable from the standpoint of preventing the floating, but in this case, Almost the entire bottom wall of the storage chamber is blocked by the refrigerant retainer itself, obstructing the vertical flowability of the refrigerant retainer, and the cold air above the refrigerant retainer cannot flow downward, which reduces the cold insulation effect. Will be done.

Also, when the container for storing the cold storage material such as the cold storage material is repeatedly used as a box, the cold storage material such as the cold storage material stored in the storage chamber needs to be cooled each time, but the lid plate on the top of the lid body is required every time. To open and close to take out the cooling medium and cool it, it takes time to take out and store this cooling medium.
It is inefficient.

Therefore, the cooling medium was placed in a freezer or a cooling chamber with the cooling medium stored in the lid, and in this case, in order to increase the cooling efficiency of the cooling medium inside the lid, cold air is stored in the cooling chamber. It is necessary to be able to fully distribute around the.

However, if the refrigerant carrier is formed to fit the size of the storage chamber as described above, the refrigerant carrier itself impedes the flowability in the accommodation chamber, and therefore a sufficient cooling effect cannot be expected. become.

The present invention has been made in view of the above, and has a structure in which a refrigerant holding body is stored in a storage portion formed by a recessed portion of a lid body and cold air is circulated from a bottom wall thereof. Even when storing a refrigerant holder of a size corresponding to the compartment, the cold air flowability in the storage chamber is good, and the refrigerant is excellent in the effect of keeping it cold when it is fitted in the container body, and the refrigerant holder is housed in the lid. It is an object of the present invention to provide a lid structure that can be sufficiently and efficiently cooled as it is.

[Means for Solving the Problems] According to the present invention, a lid body mainly made of synthetic resin foam that can be fitted into a container body is provided with a concave central portion on the upper surface, and an upper portion of the concave portion is provided. A lid plate mainly made of synthetic resin foam is detachably fitted, and the recessed space serves as a storage chamber for the refrigerant container, and a large number of ventilation openings are formed in the bottom wall of the storage chamber. In addition, in the lid of the container provided with a convex portion for supporting the refrigerant holder on the upper surface of the bottom wall, in particular, in order to solve the above-mentioned problems, at a plurality of side surfaces of the storage chamber, from the side surface lower end It is characterized in that a vertical groove extending upward is provided.
It is preferable that this groove portion is provided by penetrating the bottom wall,
Further, it is preferable to form it continuously with a part of the openings formed in the bottom wall.

[Operation] According to the present invention described above, a cooling medium such as a cool storage material is stored in the storage chamber inside the lid, and the cover plate is used by being fitted in the recessed portion and covered. The medium is supported by the convex portion provided on the bottom wall and has a space between the medium and the bottom wall surface, and the flowability under the refrigerant retainer is maintained by this space.

Even if the refrigerant holder has a size corresponding to the compartment of the storage chamber and may come into contact with the side surface of the accommodation chamber, the vertical groove of the side surface causes the vertical space of the refrigerant holder. Can communicate with each other to ensure sufficient distribution.

Therefore, in a use state in which the lid body is fitted over the container body, the cool air of the refrigerant retaining body stored in the storage chamber inside the lid is circulated from the opening of the bottom wall into the lower container body, and more particularly than the refrigerant retaining body. The cool air in the upper space can also flow to the lower side of the refrigerant retaining body through the vertical groove on the side surface, and can flow to the lower containing portion through the opening or the like.

And a container that is repeatedly used as a returnable box,
When cooling the cooling medium in the storage chamber, if the cooling medium is placed in the cooling chamber together with the cooling medium stored in the cooling chamber, the cool air in the cooling chamber passes through the opening in the bottom wall and the convex portion in the storage chamber. It can flow into the gap between the refrigerant carrier body and the bottom wall surface supported by, and can also flow into the upper space of the refrigerant carrier body through the concave groove provided on the side surface of the storage chamber. It can be cooled.

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

(1) is mainly made of synthetic resin foam and the container body (2
The lid body is formed so as to be freely fitted to 0), and the central portion of the upper surface is recessed to a required depth so as to leave a required peripheral edge width.
A lid plate (10) mainly made of synthetic resin foam similar to the lid body (1) is detachably fitted on the recessed portion (2),
The space formed by the recessed portion (2) is configured as a storage chamber (3) for a refrigerant retaining body such as a cool storage material.

The bottom portion of the recessed portion (2), that is, the bottom wall (4) of the storage chamber (3) is provided with a required number of openings (5) for ventilation, and in the case of FIG. ing. The opening (5) located in the outer peripheral row is formed at a position in contact with the side surface (3a) of the storage chamber (3). The size (diameter) and the number of the openings (5) can be appropriately set in consideration of the flowability of cold air and the strength of the bottom wall (4).

(6) is a large number of convex portions for receiving and supporting the refrigerant, which are provided on the upper surface of the bottom wall (4). For example, as shown in the figure, a portion surrounded by four openings (5) vertically and horizontally adjacent to each other. Are arranged in parallel or in any other array or in a scattered form with a required interval. The convex portion (6) may have any shape as long as it can support the refrigerant container (30) stored in the storage chamber (3) by floating it from the bottom wall surface. In the embodiment shown in the drawing, the flat top surface is provided so that the flat refrigerant storage material (30) such as the cold storage material can be stably supported. It is also possible to form it in a substantially prefixed cone shape or a truncated pyramid shape which is an inclined surface continuous with the top surface. The height, size, interval and the like of the convex portion (6) can be arbitrarily determined according to the size and the like of the refrigerant container (30) mounted and housed therein.

Then, at the required location on the side surface (3a) on the four sides of the storage room (3),
A vertical ventilation groove (7) extending upward from the lower end of the side surface (3a) is provided. It is desirable that the groove (7) is formed by continuously forming a hole (7a) penetrating the bottom wall (4) at the position of the groove (7) as in the illustrated embodiment. Further, the hole (7a) at the location of the concave groove (7) is continuously formed with the opening (5) as shown in the figure, and the opening (5) is partially inserted into the side surface (3a) to form this opening. It is also possible to form a concave groove continuous to (5) on the side surface.

The bottom wall (4) of the storage chamber (3) is not shown,
Depending on the thickness and area, reinforcing ribs (not shown) may be provided at appropriate places such as the central portion in the longitudinal direction. In this case, since the storage chamber (3) is divided by the ribs, the opening (5) and the convex portion (6) are formed on the bottom wall of each of the divided storage portions as described above. In addition to the formation in (4), the vertical concave groove (7) can be formed in the same manner as above on the rib side surface which is the side surface of the storage chamber.

Further, the bottom wall (4) is preferably formed integrally with the lid body (1), but a bottom wall member formed separately from the peripheral edge portion (11) of the lid body (1) is fitted to the peripheral edge portion (11). It can also be mounted by other means, in which case the bottom wall member can be made of foamed or non-foamed synthetic resin or other material.

Further, the fitting structure of the cover plate (10) with respect to the recessed portion (2) may be any form as long as it can hold a space serving as the storage chamber (4) between the bottom wall (4). But you can
As shown, the side of the recessed portion (2), that is, the storage chamber (4)
It is easy to implement by providing a step portion (12) with a notch on the inner periphery of the and fitting the lid body (10) on the step portion (12). Further, the shape of the lid plate (10) is not limited to a simple plate shape as shown in the figure, and for example, a finger hook portion for opening and closing is partially formed,
Various implementations are possible.

Further, the lid body (1) is slightly recessed from the upper surface of the lid body at the peripheral edge portion of the recessed portion (2) on the top surface of the lid plate (1).
0) is provided so as to fit into the recessed portion (2) substantially flush with the recessed surface portion (13). Further, the outer peripheral portion of the bottom surface of the container body (20) is cut out (21) so that the inner portion can be fitted and positioned in the recessed surface portion (13) in the container stacked state. It is also possible to provide convex portions that fit inside the concave surface portion (13) at required places such as four corners on the bottom surface of the container body (20), in which case dirt will be attached to the upper surface of the lid by stacking. It will also be possible to prevent.

The fitting structure of the lid body (1) with respect to the container body (20) can be implemented in various forms, but in the illustrated embodiment, the lid body (1) is provided with an opening edge portion of the container body (20). (2
It is structured to fit inside 2), and further, the peripheral flange portion (14) of the lid body (1) is mounted on the upper surface of the opening edge portion (22) of the container body (20).

As the lid body (1), the lid plate (10) and the container body (20), a polystyrene resin and a styrene resin foam such as a copolymer containing styrene as a main component, polyethylene or polypropylene, and a copolymer weight containing these as a main component A polyolefin resin foam or a polyvinyl chloride resin foam such as a coalesce may be used alone, or a surface of the synthetic resin foam covered with a non-foaming synthetic resin as a skin layer may be used.

The container using the lid having the above-mentioned configuration is used as a shipping container for shipping and transportation of frozen desserts such as ice cream, cakes, fresh fish, and other foods and other products that require cooling, or as a cold container for packaging. Then, the refrigerant container (30) is appropriately housed in the housing chamber (4) provided inside the lid body (1) according to the necessity of use.

As the heat-retaining body (30), for example, a bag-shaped cold storage material obtained by enclosing a gel or jelly-like substance having a large heat capacity and having a cold storage effect in a relatively flat synthetic resin bag is particularly preferably used. The bag-shaped cool storage material and the like can be stored so as to be lined up on the bottom wall (4) in the storage chamber (3), but from the viewpoint of looseness in handling during transportation and uneven distribution, the storage chamber (3 The size corresponding to the section of () is preferably used.

The refrigerant retaining body (30) thus accommodated in the accommodating chamber (3) has a size corresponding to the compartment of the accommodating chamber, and the outer peripheral portion of the refrigerant retaining body (30) is a side surface of the accommodating chamber (3). Even if it comes close to or comes into contact with (3a), since the vertical groove (7) is provided at a required position on the side surface (3a), the heat retaining body (30) is provided by this groove (7). The upper and lower spaces of) can communicate with each other to ensure sufficient flowability.

Therefore, when cooling the refrigerant retaining body (30) such as the regenerator material in the use of the above-mentioned container, particularly when it is repeatedly used as a returnable box, only the refrigerant retaining body (30) is taken out from the lid body (1) and put in the cooling chamber for cooling. It is not necessary to do so, and it becomes possible to cool the refrigerant retaining body (30) in the cooling chamber for each lid while being stored in the lid body (1).

That is, when the refrigerant retaining body is cooled together with the lid stored in the lid body (1) as described above, the cool air in the cooling chamber is present in the bottom wall (4) of the housing portion (3) of the lid body (1). Open hole (5)
Further, it flows into the storage chamber (3) and comes into contact with the refrigerant container (30). In particular, since the heat retaining body (30) is supported by the convex portion (6) and has a gap between the bottom wall (4) and the heat retaining body (3).
As a result, cold air circulation underneath 0) can be secured.
Moreover, through the vertical groove (7) formed on the side surface (3a) of the storage portion (3), it can be sufficiently distributed to the upper space of the refrigerant retaining body (30), and thus is stored in the lid body (1). Despite this, the refrigerant carrier (30) can be efficiently cooled from the upper and lower sides thereof, and the entire lid can be cooled without any problem.

Then, after cooling in this way, the lid body (1) only has to be fitted on the container body (20) as it is. Therefore, even when the container is repeatedly used as a box to pass through, the heat-retaining refrigerant body (30) is required each time. It is not necessary to take in and out, and the labor and work time required for cooling can be greatly reduced.

Of course, when replacing the refrigerant container (30) with a new one, the cover plate (10) can be opened and taken out easily, and the replacement work is also easy.

Further, in the use state in which the lid body (1) is fitted on the container body (20), the cold air of the refrigerant retaining body (30) in the lid body (1) is the open hole (5) of the bottom wall (4). Through the inside of the lower container body (20), especially the cool air in the upper space of the refrigerant container (30) also flows to the lower side of the refrigerant container (30) through the concave groove (7) provided on the side surface (3a). At the same time, it will flow into the lower container body (20) through the hole (7a) and the opening (5) that are continuous with it, and the cold air emitted from the refrigerant container (30) can be effectively used.

[Advantages of the Invention] As described above, according to the present invention, the coolant retaining body housed in the storage chamber inside the lid has a size corresponding to the compartment of the storage chamber, and the coolant retaining body is close to the side surface. Alternatively, even if they come into contact with each other, the vertical groove formed on the side surface of the storage chamber can ensure the flowability of the upper and lower spaces of the refrigerant container,
This is combined with the fact that the convex portion formed on the bottom wall can support the refrigerant body and hold a gap with the bottom wall surface, so that the cool air of the refrigerant body in the storage chamber can be effectively used and the cold insulation effect is excellent. Will be things.

In addition, even when the cooling medium is stored in the cooling chamber with the lid stored therein, the upper and lower spaces of the cooling medium communicate with each other through the concave groove, so that the cool air is sufficiently distributed around the upper and lower sides of the cooling medium. The cooling efficiency can be improved.

In particular, since it becomes possible to cool the refrigerant retaining body together with the lid as described above, even when repeatedly used as a returnable box,
Each time, it is not necessary to take out the cooling body from the inside of the lid for cooling, and it is not necessary to take in and out the cooling body, so that the cooling work of the cooling body can be rationalized and streamlined, and the working time can be greatly shortened.

Further, since it becomes possible to store the refrigerant retaining body of a size corresponding to the compartment of the storage chamber without any problem as in the previous term, it is possible to prevent the refrigerant retaining body from wandering or being biased during mailing or other handling.

Therefore, the present invention can be suitably used in a shipping container for shipping desserts such as frozen desserts, cakes, fresh fish, ice creams, dipping products, and other products requiring cooling, or a cold container for packaging.

[Brief description of drawings]

1 is a perspective view of a lid body in which a lid plate is separated according to an embodiment of the present invention, FIG. 2 is a partially enlarged perspective view, FIG. 3 is a plan view of the lid body, and FIG. 4 is a lid body of a container body. FIG. 5 is an enlarged view of a part of the previous figure, showing a cross-sectional view of a use state in which the cover is fitted to. (1) ... Lid, (2) ... Recessed part, (3) ... Storage chamber, (3
a) ... Side surface, (4) ... Bottom wall, (5) ... Open hole, (6) ... Convex part, (7) ... Vertical groove, (8) ... Hole, (10) ... Lid plate, ( 20) ... Container body, (30) ... Refrigerant body.

Claims (1)

[Scope of utility model registration request] 1. A central portion of an upper surface of a lid body having a synthetic resin foam body as a main material, which can be fitted into a container body, is recessed, and
A lid plate mainly made of synthetic resin foam is detachably fitted on the upper portion of the recessed portion to form the recessed portion space as a storage chamber for the refrigerant container, and the bottom wall of the storage chamber is ventilated. A lid of a container having a large number of openings for opening and a convex portion for supporting the refrigerant container provided on the upper surface of the bottom wall, and extending upward from the lower end of the side surface at a plurality of side surfaces of the storage chamber. A lid structure for a container, characterized in that a vertical groove is provided.