JPS63178966A - 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 freshness, such as those that can be processed and seasoned, and consumers can simply heat them in a microwave oven.

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 the delivery takes longer than the scheduled time, there will be a shortage of dry ice, resulting in a decline in the quality of the stored items and, in some cases, spoilage, resulting in a total loss of marketability. . 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, causing an increase in costs.

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 cold container.

Since the container is originally made of insulating material, the cooling effect is very poor, and depending on the transportation distance and time, it often happens that only the outer periphery of the container is cooled and the contents are not cooled as well. In many cases, the original properties of the container are not utilized, and if the structure is such that it can be easily cooled through the container wall, the temperature of the contents will rise rapidly when the container is placed in the outside atmosphere after cooling. This results in disadvantages such as: 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 and, for example, collecting frozen food crystals from many individuals and delivering them to many destinations while maintaining a safe and reliably frozen state, are difficult in terms of cost, equipment, and transportation. Systematically 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, there is a problem in that high-temperature outside air flows into the container from the opening of the vacuum cooling container during storage or transportation, reducing the cold insulation effect.

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, it is easy to open the window on the container in the built-in refrigerator or freezer to introduce cold air into the container. By adopting a method that cools the items and then closes the liquid inside the container during the collection and sorting mentioned above and seals cold air inside the container, the above problems can be solved all at once, and the containers can be kept fresh with maximum storage efficiency. The inventors have discovered that fresh produce can be delivered in the same condition, and have also provided a foamed synthetic resin container whose door can be easily opened and closed even when pre-cooling vegetables and the like.

That is, the present invention provides an insulated container comprising a lid made of foamed synthetic resin and a container body, in which a window is provided on at least one surface of the lid or the container body, and the cough window has an opening and a projection. A window frame having a door accommodating wall surface and a door slidably attached to the window frame by an elastic material such as rubber or a spring, and having a protrusion on the back surface that engages with the protrusion. When the door is moved to the door housing wall surface, the door opens against the contraction force of the elastic material, and the two protrusions engage with each other to form a ventilation hole, and when the engagement between the protrusions is released, The content of the container is a foamed synthetic resin container characterized in that the door returns to its original position by the contraction force of the stretchable material 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 with reference to the drawings showing embodiments.

FIG. 1 is a perspective view of the container of the present invention, FIG. 2 is a sectional view taken along line A-A,
FIG. 3 is an exploded perspective view of the vicinity of the window, and FIG. 4 is a sectional view showing the door opened and a ventilation hole 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 on both side walls of the container body (2). ing.

The window section (3) includes an opening section (4), a flat housing wall surface (5), a substantially U-shaped window frame (6) surrounding these, and an rR that covers the opening section (4) of the window frame (6). (7) and said 1(7) to the window frame (6
) and a ring-shaped rubber (8) for attachment.

The above 13i1 (7) has projecting edges (9) (9) on both sides and the top.
') and (9'), and the protruding edges (9) and (9') are provided with rubber mounting grooves (10) and (10'), and the surface has a groove for inserting a finger and pulling down the door. A concave part (11) and a convex part (12) for picking with fingers when raising the door are provided,
On the other hand, there are protrusions (13) (13') (however, (13') not shown) at the bottom of the back surface, and a rubber mounting groove that communicates with the rubber mounting grooves (10) (10') at the lower end. (14) is engraved.

The window frame (6) has a rubber mounting groove (15) on the outer circumferential surface and door accommodation grooves (16) (16') on both inner surfaces, and the opening (4) shown in the above figure and the door accommodation wall surface (5) at the bottom. ). Above the door housing wall surface (5) is a protrusion for preventing the door from popping out (
17) (17'), and there is also a door fixing protrusion (18) below.
) (18') is provided protrudingly. (19) The recess is the door (7
) to make it easier to pick up the protrusion (12).

The door (7) is installed from above the window frame (6) with the ring-shaped rubber (8) attached to the rubber attachment groove (14) on the back side and the rubber attachment grooves (10) (10') on both sides. The projecting edge (9) (of the door (7)) is inserted into the door accommodation groove (16) (16') of (6).
9'), and the ring-shaped rubber (8) is attached to the rubber mounting groove (15) of the window frame (6), so that m (7) can freely slide on the window frame (6) via the ring-shaped rubber. can be attached to.

Figure 2 shows a state in which the opening (4) is covered with the door (7) and the ventilation hole is closed.
), the protrusion (13) provided at the bottom of the door housing wall (
It engages with the protrusion (17) for preventing the door from popping out (5), overcomes the contractile force of the ring-shaped rubber (8), prevents R (7) from popping out, and maintains the vent closed state. In addition, in the above, the protrusion (13') is also the protrusion (13') for preventing the door from popping out.
7'), but not shown.

Figure 4 shows the state where the ventilation hole is formed, and the door (7) can be opened by touching the recess (11) shown in Figure 3 with your finger or by touching the convex part (
12) and is pushed down against the contraction force of the rubber (8), engaging the protrusion (13) on the back of the door and the door fixing protrusion (18) provided at the bottom of the door housing wall (5). In the above, the protrusion (13'
) is similarly engaged with the door fixing protrusion (18'), but is not shown.

FIG. 5 is a perspective view showing another embodiment of the present invention, FIG. 6 is an exploded perspective view of the window, and FIG. 7 is the container body with the opening covered with a door and the vent closed. The cutaway view, FIG. 8, is a cross-sectional view of the container body showing a state in which the door is open and a ventilation hole is formed.

In these figures, the window section is composed of a window frame (20) (20'), a door (21), and a ring-shaped rubber (22).

The window frame (20) (20') is arranged on both sides so as to sandwich the opening (23) and the door accommodation wall surface (24) below it, and is provided with a door accommodation groove (25) (25') on the inside. A bulge at the top to prevent the door from popping out (26)
(26') (Jl), and the upper end is rubber equipped with 8 grooves (27).
(27'), the lower end is equipped with a rubber hooking part (2B>(28'). The lower part of the door housing wall surface (24) is provided with door fixing protrusions (29) (29'). .

J3 (21) is equipped with projecting edges (30) (30') and rubber fittings TL (31) (31') on both sides, and the upper part is attached to the window frame (
It has notches (32) (32') that engage with the bulges (26) (2G') of 20) (20'), a recess (32) for placing a finger on the front surface, and a recess (32) for placing a finger on the back surface. A rubber mounting groove (34) is carved in the lower part that communicates with the lower end of the rubber mounting fr groove (31) (31'), and a door fixing projection (29) of the melon storage wall surface (24) is provided at the lower end. (29') are provided with protrusions (35) (35') (35' not shown) that engage with the protrusions (35').

The above door (21) has rubber mounting grooves (34) and (31)
Window frame (20) (20') door accommodation groove (25) from below using ta with ring-shaped rubber (22) attached to (31')
The rear side projecting edges (30) (30') are accommodated in the window frames (20) (25'), and the rubber (22) is attached to the window frames (20) (20)
') Pass through the rubber mounting grooves (27) (27') at the upper end and hook onto the rubber hooking part (28) <28') at the lower end to complete the assembly.

Figure 7 shows the vent hole closed, the door (21) being pulled upward by the contraction force of the rubber (22), and the bulges (26) (26) of the window frame (20) (20'). ') and door (
21) and the notches (32) (32') mesh with each other to cover the opening.

No. 8121 shows a state in which a ventilation hole is formed, and the door (21
) against the contraction force of the rubber (22), and fix the door in a state where the protrusion (35) at the bottom of the door is engaged with the door fixing protrusion (29) at the bottom of the door housing wall (24). The opening is opened. Although not shown, the protrusion (35') similarly engages with the door fixing protrusion (29').

FIG. 9 shows another embodiment B of the present invention, in which a hook-and-loop fastener (36) is adhered to the surface of l3 (21). With this structure, as shown in FIG. 10, when precooling vegetables by differential pressure, for example, the hook-and-loop fasteners (36) (36') can be attached with Q (21) (21') opened, respectively.
By joining them together, you can prevent the door from accidentally closing during pre-cooling, and after the pre-cooling is finished, the hook-and-loop fastener (36) (3
By peeling off 6'), 1 (21) and (21') will be lifted up, and as a result, the engagement between the door fixing protrusion on the door storage wall and the door protrusion is released, and the contraction force of the rubber automatically releases the engagement. The door is pulled upwards and closed. That is, after the precooling is completed, there is an advantage that when each container is loaded onto a transport vehicle or transferred to another location, the door is automatically closed at the same time as the connection by the hook-and-loop fastener is separated.

A feature of the present invention is that an elastic material is used to open the door, which requires other external force, but when the door is closed, the contraction force of the elastic material is used to automatically close the door at low cost. (Therefore, many variations are possible in addition to the above examples. For example, the opening is not limited to a notch shape, and as the elastic material, in addition to rubber, a spring etc. can also be used. However, even if rubber is used, it is not limited to a ring-shaped one, and many other variations are possible in terms of the position, shape, number of openings, opening/closing direction of the door, how to attach the elastic material, etc. These are included in the present invention as long as they do not deviate from the i+7 aspect 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. Typical work steps in this case are: Cooking - Freezing - Packaging (closed; window open/closed, the same applies hereafter) - Collection store (open) - Loading i (closed) - Refrigerated transport vehicle (open) - Terminal sorting (closed) - Refrigerated transport vehicle (open) - Terminal sorting (closed) - Refrigerated transport vehicle (open) - Home delivery, and the process of opening and closing must be repeated several times, but with the use of the container of the present invention. This can be done efficiently and reliably. That is, in the process of collecting goods and refrigerated transport vehicles, the windows are placed in the freezer with the windows open, cold air is introduced, and once pre-cooling is completed, it can be easily cooled manually or automatically (for example, the method shown in Figures 9 and 10). Moreover, the door can reliably return to its original position and close the ventilation hole.

Thus, according to the present invention, with an extremely inexpensive and simple structure, it is possible to streamline the work of opening and closing the window of the container, and a higher level of quality assurance is possible. Homemade meals can be delivered to the homes or lodgings of new employees, enabling an innovative delivery system that goes beyond traditional home delivery. It goes without saying that the present invention is widely applicable not only to cold boxes for home delivery, but also to cold boxes for vegetables, fish boxes, farm-direct cold boxes, food distribution boxes, medicine transport boxes, and the like.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the container of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 is an enlarged exploded perspective view of the vicinity of the window, and Fig. 4 is a ventilation hole formed. FIG. 5 is a perspective view showing another embodiment of the present invention,
Fig. 6 is an enlarged exploded perspective view of the vicinity of the window, Fig. 7 is a schematic diagram showing the vent closed, Fig. 8 is a sectional view showing the vent hole formed, and Fig. 9 is the main part. FIG. 10 is a schematic view of a container main body showing still another embodiment of the invention, and FIG. 10 is a schematic view showing a state of use. 1...■body, 2...container body 3.3'...window, 4...opening 5...door accommodation Wall surface, 6...Window frame 7...Door, 8...Ring-shaped rubber 9.9'9#...Protrusion 10, lO'. ...Rubber mounting groove 11...Concavity, 12...Protrusion 13.13'...Protrusion, 14...
・Rubber mounting groove 15...Rubber mounting groove, 16.
16'...Door accommodation groove 17.17'...
Door protrusion prevention protrusion 18, 18'... Door fixing protrusion 19... recess, 20, 20'
...Window frame 21 ...Door,
22... Ring-shaped rubber 23... Opening, 24... Door housing wall surface 25.25'.
...Door accommodation groove, 26.26'...Bulging part 27.27'...Rubber 'A@groove 28.28'.
...Rubber hooking part 29.29'...Door fixing protrusion 30.30'.
...Protruding edge portion, 31.31'...Rubber mounting groove 32.32'...Notch portion 33...Concave portion, 34...・Rubber mounting groove 35.35'...protrusion, 36.3
6'・・・Loop fastener Fig. 4 Fig. 5 Fig. 7 Fig. 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 is formed with an opening. , a window frame having a door housing wall surface having a protrusion, and a door that is slidably attached to the window frame using an elastic material such as rubber or a spring, and has a protrusion on the back surface that engages with the protrusion. When the door is moved to the door housing wall surface, the door opens against the contraction force of the elastic material, and the two protrusions engage with each other to form a ventilation hole, and the protrusions engage with each other. 1. A foamed synthetic resin container characterized in that when the door is opened, the door returns to its original position due to the contraction force of the elastic material and closes the ventilation hole. 2. The window frame is composed of an opening, a door housing wall surface, and a substantially U-shaped frame body surrounding these, and the frame body is provided with a rubber mounting groove on the outer peripheral surface and a door housing groove on both inner surfaces, and the door housing wall surface is The door has a protrusion to prevent the door from popping out at the top, a protrusion to fix the door at the bottom, and the door has a protrusion on both sides and a rubber mounting groove, and a protrusion on the back side that engages with the protrusion to prevent the door from popping out or the protrusion to fix the door. and rubber mounting grooves communicating with the lower ends of the rubber mounting grooves on both sides of the door, the projecting edge of the door is accommodated in the door receiving groove of the window frame, and the ring-shaped rubber is inserted into the rubber mounting groove of the door. The container according to claim 1, which is mounted in a rubber mounting groove of a window frame. 3. The window frame consists of an opening, a door-accommodating wall, and a pair of frames arranged so as to narrow these together, and the frame has a bulge at the top to prevent the door from popping out, and a rubber mounting groove at the top. The lower end is provided with a rubber engagement part, the lower part of the door housing wall is provided with a door fixing protrusion, the door has a projecting edge part and a rubber attachment groove on both sides, and the upper part engages with the bulge part of the window frame. The door has a notch, and a rear surface thereof is provided with a protrusion that engages with the door fixing protrusion, and a rubber attachment groove that communicates with the lower end of the rubber attachment groove of the window frame, and the projecting edge of the door is attached to the door of the window frame. 2. The container according to claim 1, wherein the container is accommodated in the storage groove and the ring-shaped rubber is attached to the rubber attachment groove of the window frame and the rubber attachment groove on the back surface of the door. 4. The container according to claim 1, 2 or 3, wherein two windows are provided on opposing side walls.