JPS63138971A - Foamed synthetic resin vessel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a foamed synthetic resin container, and more particularly to a foamed synthetic resin container equipped with a window for injecting cold or hot air that can be easily and reliably opened and closed. It is.

"Prior Art and Problems" Conventionally, foamed synthetic resins such as foamed polystyrene have been widely used in various packaging containers, transportation containers, etc. because they have excellent cushioning and heat insulation properties.

Typical examples of this include delivering local specialties such as seafood, vegetables, and fruits to consumers while preserving their freshness, as well as preparing ingredients for dinner, etc., and delivering them to consumers. There are packaging and transportation containers for home delivery that sell products that are ready to be cooked, or are processed and seasoned, and consumers only need to heat them in a microwave oven to promote their freshness.

In the case of seafood and cooking ingredients, a method is used in which containers are stored in a frozen or cooled state and then filled with dry ice, cold storage agents, and ice necessary for delivery to the destination. For example, if delivery takes longer than the scheduled time, there will be a shortage of dry ice, and as a result, the quality of the stored items will deteriorate, and in some cases, they will spoil, resulting in a complete loss of marketability. becomes. On the other hand, if excessive dry ice or the like is packed in an attempt to prevent this, the storage efficiency will decrease accordingly, leading to cost savings.

To compensate for these shortcomings, seafood, vegetables, fruits, cooking ingredients, etc. are often transported using refrigerated trucks or refrigerated trucks to keep them cool or frozen, depending on the destination, purpose, distance, etc. It will be done. However, even in this case, cooling is performed from the outer periphery of the sealed refrigerated container, and since the refrigerated container is originally made of insulating material, the cooling effect is very poor. cooled,
There are many cases where the contents are not cooled down, and the original properties of the refrigerated vehicle are not utilized. If the container is left in the container, the temperature of the contents will rise rapidly. For this reason, the poor cooling effect is considered to be unavoidable, and the entire cold storage container is cooled.

In this way, complicated transportation routes, such as collecting frozen foods from many individuals and delivering them to many destinations while safely and reliably maintaining the frozen state, are difficult in terms of cost, equipment, and transportation system. is impossible.

On the other hand, it has become common for vegetables and the like to be pre-cooled before shipping. Advantages of precooling include stable quality, shipping to remote locations, and adjustment of shipping location, and one of the precooling methods is vacuum precooling. Vacuum precooling is a method of cooling vegetables by removing the heat of evaporation that accompanies water evaporation from vegetables, and has the advantage of fast cooling speed and uniform cooling.

However, on the other hand, during storage or transportation, high-temperature outside air flows into the container from the opening for vacuum cooling, and the cooling effect is reduced.

In order to solve this problem, for example,
No. 569 proposes a cold storage container having a structure in which an opening leading to the inside of the container is formed in the fitted state with the lid on, and the opening is closed in the opposite fitted state. However, in such a cold storage container, it is necessary to reload all the cargo in the vacuum precooling chamber in order to turn the lid in the opposite direction after vacuum precooling, which greatly reduces work efficiency.

``Means for Solving the Problems'' In view of the above circumstances, the inventors of the present invention have conducted intensive research and found that when the contents are stored, the containers containing the contents are loaded onto transport vehicles, and when they are sorted at the terminal. For example, when waiting for cargo to be loaded at a collection store or while being transported in a transport vehicle, the window on the container may be opened automatically or easily in the refrigerator or freezer provided to allow cold air to flow into the container. By adopting a method in which the contents are cooled by introducing the container, and the cough window is automatically closed during the collection and sorting mentioned above to seal cold air inside the container, the above problems can be solved all at once. The company discovered that it is possible to deliver perishables in a fresh state with maximum storage efficiency, and it is inexpensive and has a simple structure, there is no malfunction of window opening/closing, and safe unmanned operation is possible. In the case of pre-cooling or differential pressure pre-cooling, the door closes at the same time as the vacuum pre-cooling ends, sealing the cold air, and even in the case of differential pressure pre-cooling, we have now provided a foamed synthetic resin container that can be easily opened and closed. be.

That is, the present invention provides an insulated container comprising a lid made of foamed synthetic resin and a container body, in which at least one surface of the lid or the container body is provided with a sharp edge, and the window portion is a window frame having an opening. , and a door attached to the window frame using an elastic material such as rubber or a spring, and the other is a door facing the window frame so that it can be opened at an acute angle from its free end by means of the elastic material.
When the end is attached to the window frame and a force is applied in the direction of lifting it from the free end, Ml opens against the contraction force of the stretchable material and forms a ventilation hole, and when the nuclear force is removed, the secondary The content is a foamed synthetic resin container characterized by a structure in which the door returns to its original position and closes the ventilation hole.

The lid, container body, and window of the present invention are made of a foamed synthetic resin, and suitable foamed synthetic resins include polyolefin resins such as polystyrene, polyethylene, and polypropylene, and polyurethane resins.

"Example" The present invention will be explained based on drawings showing embodiments.

Fig. 1 is a sectional view of the container of the present invention, Fig. 2 is an enlarged perspective view of the vicinity of the window, Fig. 3 (A) is a front view of the lid, Fig. 3 (B) is a bottom view thereof, and Fig. 4 is a sectional view showing a state in which the door is open and a ventilation hole is formed.

1 to 4, the container of the present invention is composed of a lid (1) and a container body (2), and windows (3) (3') are provided at both ends of the lid (1) in the longitudinal direction. is provided.

As shown in FIG. 2, the window portion (3) includes a window frame (5) having an opening (4) and a door (5) covering the opening (4) of the window frame (5).
6) and a ring-shaped rubber (7) for attaching the separate part (6) to the window frame (5).

The door (6) has tongue pieces (8) (8') on one side, retaining protrusions (9) (9') protruding from its surface, and the other side has tongue pieces (8) (8'). A rubber mounting groove (10) is carved.

The window frame (5) is equipped with a door accommodating part (11), and at the back of both sides there are door holding parts (12) (12') that have a tapered shape that widens as it gets closer to the back and have an angle of α degree (Fig. 1). Also provided are insertion holes (13) (13') for inserting the tongue pieces (8) (8') of the door, and the insertion holes (13)
) (13') has a concave groove (14) (14') (for example, the first
) is provided. Is (15) equipped with rubber? 1i, this communicates with the rubber hook (16) (Fig. 3(B)).

In addition, the recess (17) of the window frame (5) and the recess (1) of the door (6)
8) are each fitted with a convex portion (19) extending on the upper part of the peripheral wall of the container (2) to ensure airtightness.

The door (6) is housed in the door accommodating part (11) of the window frame (5), and the melon tongue pieces (8) (8') are inserted into the insertion holes (13) of the window frame.
(13'), and the ring-shaped rubber (7) connects to the rubber fitting groove (10) of the door (6), the rubber fitting groove (15) of the window frame (5), and the rubber hook part (16). passed on. At this time, the engaging projections (9) (9') on the tongue pieces (8) (8')
and grooves (14) (1) in the insertion holes (13) (13')
4'), thereby preventing the FB (6) from accidentally coming off the window frame (5).

Door (6) fitted into window frame (5) (5') as above
(6') normally covers and closes the openings (4) (4') due to the contraction force of the ring-shaped rubber (7) (7'), but when a force is applied from its free end in the direction of lifting it up. In this case, as shown in No. 4, the door holding portions (12) (12') are opened diagonally upward by an angle α degree from the free end against the contraction force to form a ventilation hole. be able to.

On the other hand, as shown in FIG. 1, the container body (2) has a convex portion (19) on the upper side wall, and a recess for opening the door (20) on the bottom surface.
(20') is provided. The recess for opening the door (20
) (20') is configured to be accommodated with the door (6) (6') opened by α degree.

Figure 5 shows an example of the usage state of the container of the present invention (vacuum precooling). When vegetables, etc. are stored in the container of the present invention and then stacked vertically and horizontally and then evacuated, the shrinkage force of the rubber In contrast, the door opens obliquely upward to form a ventilation hole, and adjacent ventilation holes communicate with each other to efficiently introduce cold air. As soon as cooling is completed and the vacuum state is released, the door closes due to the contraction force of the rubber, closing the ventilation hole and sealing the cold air inside the container.

FIGS. 6A and 6B and FIGS. 7A and 7B respectively show examples of door stopper mechanisms in the case of manual operation. In FIGS. 6(A) and (B), a protrusion (21) is provided at the bottom near the tip of the door (6), and the window frame (
5) A groove (22) is provided in the door accommodating part, and a protrusion (22) is provided at the top.
3) is provided. Thus, when the door (6) is lifted, the protrusion (21) moves along the groove (22) and uses the flexibility of the material to climb over the protrusion (23), resulting in the opening state shown in FIG. 6(B). The state in which the ventilation holes are formed is maintained. door(
6) to close the ventilation hole, move the door (6) slightly to the right and move the protrusion (21) under the protrusion (23) to reduce the contraction force of the ring-shaped rubber (not shown). automatically closes.

P is another container of the present invention stacked on the lid, and (20) is a recess for opening the door. In FIGS. 7(A) and (B), a protrusion (21) is provided approximately at the center of the door (6), while a protrusion (23) is provided for opening the door of other containers P stacked on top. It is provided on the side wall of the recess (20), and in order to open the door (6), the protrusion (21) must be raised along m (22) and the protrusion (23)
) to create a state as shown in FIG. 7(B).

To close the door (6), the protrusion (21) is moved below the protrusion (23). The stopper mechanism as described above is convenient when used for differential pressure precooling or as a window for checking stored items. In addition to the above, it goes without saying that any structure can be adopted as long as the door can be easily temporarily held in place at an arbitrary opening degree, and can be easily unlatched when the door is closed.

Although the example in which the window portion is provided in the lid has been described above, the window portion may also be provided in the side wall of the container body in the same manner as described above.

Furthermore, the opening is not limited to a notch shape. In addition to rubber, springs and the like can also be used as the elastic material. In addition, many variations are possible in the position, shape, number of openings, opening/closing direction of the door, method of attaching the elastic material, etc., and these are included in the present invention as long as they do not depart from the spirit of the present invention.

"Action/Effect" The container of the present invention is suitable for transporting all kinds of perishables, etc.
For example, it is possible to deliver fresh cooked food door-to-door by simply heating it in a microwave oven through the following process. A typical example of the work process in this case is: Cooking - Freezing - Packaging (closed; window open/closed, the same applies hereafter) - Collection store (open) - Loading (closed) - Reefer transport vehicle (open) - Terminal Sorting (closed) - Refrigerated transport vehicle (open) - Terminal sorting (closed) - Refrigerated transport vehicle (open) - Home delivery, which requires repeating the opening and closing operations countless times, but with the container of the present invention, this process can be done automatically and It can be done reliably. That is, in the process of collecting goods at a collection store or in a refrigerated transport vehicle, it is necessary to place the container in an open state in a freezer and introduce cold air. The door of the window opens to form a ventilation hole, and as soon as the vacuum is released, the door returns to its original position and closes the ventilation hole.In the end, just by placing the container inside the refrigerator, the window automatically closes. It can be opened and automatically closed when removed from the freezer.

In this way, according to the present invention, with an extremely inexpensive and simple structure, the opening and closing work of the container window can be automated, and since there is no malfunction, a higher level of quality assurance is possible, and it is possible to enjoy cooking with friends in remote areas. This enables an innovative delivery system that goes beyond the framework of conventional home delivery, allowing users to exchange food and deliver home-cooked meals to the homes and lodgings of people working alone. In addition, the present invention is applicable not only to cold boxes for home delivery, but also to vegetable cold boxes, fish boxes, farm-direct cold boxes, etc.
Needless to say, it can be widely used in food distribution boxes, pharmaceutical transportation boxes, etc.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing an embodiment of the container of the present invention, Figure 2 is an enlarged exploded perspective view of the vicinity of the window, Figure 3 (A) is a front view of the lid, and Figure 3 (B) is the same. A bottom view, FIG. 4 is a sectional view showing a state in which the door is open, FIG. 5 is a sectional view showing a state in which the container of the present invention is used, and FIGS. Figure 6 (A) is a sectional view with the door closed;
Figure (B) is a cross-sectional view of the door when it is open and stopped, and Figure 7 (
A) and (B) show yet another stopper mechanism for the door, FIG. 7(A) is a sectional view with the door closed, and FIG. 7(B) is a sectional view with the door open and stopped. It is. 1...Lid body, 2...Container body 3.3'...Window part, 4.4'...
・・Opening 5.5′・・Window frame, 6.6′・
...Door 7.7'...Ring-shaped rubber, 8.
8'... tongue piece 9.9'... engagement protrusion,
10...Rubber mounting groove 11...Door-shaped container part, 12.12'...Door holding part 13.13
'...Insertion hole, 14.14'...Concave groove 15...Rubber mounting groove, 16...
Rubber hook part 17.18...Concave part, 19.
...Convex part 20.20'...Concave part for opening the door,
21...Protrusion 22...Groove,
23. Old... Protrusion Figure 6 (A) Figure 6 (8)

Claims (1)

[Claims] 1. In a heat-insulating container consisting of a lid made of foamed synthetic resin and a container body, a window is provided on at least one surface of the lid or the container body, and the window has an opening. a window frame having;
A door is attached to the window frame using an elastic material such as rubber or a spring, and the opposite end of the door is attached to the window frame so that it can be opened from the free end at an acute angle. When a force is applied to lift the door from its free end, the opening opens against the contraction force of the elastic material to form a ventilation hole, and when the force is removed, the door returns to its original position. A foamed synthetic resin container characterized by having a structure that closes the ventilation hole. 2. The container according to claim 1, wherein the lid is provided with two windows, and the bottom of the container body is provided with two opening recesses.