JPH0714738B2 - Foam synthetic resin container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a foamed synthetic resin container, and more specifically, it utilizes elastic properties of rubber, has a simple structure, is inexpensive, and can be opened and closed easily and reliably. The present invention relates to a foam synthetic resin container having a window for injecting warm air.

“Prior Art and Problems” Conventionally, foamed synthetic resins represented by expanded polystyrene have been widely used for various packaging containers, transportation containers, etc. because they have excellent cushioning properties and heat insulating properties.

As a typical example, seafood, vegetables, fruits, and other regional special products are delivered to consumers while maintaining their freshness, and ingredients such as dinner are available to consumers. There are packaging and shipping containers for courier that are ready to cook, and that are processed and seasoned and the consumer only sells them in a microwave oven for the freshness.

In the case of seafood, cooking materials, etc., a system is used in which the product is stored in a container in a frozen state and then filled with dry ice, a cold storage agent or ice necessary for delivery to a destination.
However, if it takes longer than planned time to deliver if it is cold, dry ice etc. will run short, resulting in deterioration of the quality of the stored items and in some cases decay, resulting in a total loss of commercialability. Become. On the other hand, if an excessive amount of dry ice or the like is packed to prevent this, the storage efficiency will be reduced and the cost will be increased.

In order to make up for these drawbacks, seafood, vegetables, fruits, cooking materials, etc. are often used in cold storage or frozen vehicles depending on the destination, application, distance, etc. To be However, even in this case, cooling is performed from the outer circumference of the closed cool container, and since it is a cold container originally made of a heat insulating material, the cooling effect is very poor, and only the outer circumference of the container is cooled depending on the transportation distance and time. Is
It often happens that the contents are not cooled, and the original Nerai of the refrigerating car is often not utilized, so if the structure is such that it can be easily cooled through the container wall, then the container will be exposed to the outside atmosphere after cooling. When placed, it causes a defect such as a rapid temperature rise of the contents. Therefore, it is considered that the cooling effect is unavoidable, and the cold storage container is cooled.

Thus, complicated transportation routes, for example, collecting frozen foods of many individuals and maintaining the frozen state safely and surely and delivering them to many destinations are cost, facility, and transportation system-related. Impossible.

On the other hand, vegetables and the like are generally stored in a container, precooled by, for example, differential pressure precooling, and then delivered to a destination. Even in this case, if the delivery time is longer than the scheduled delivery time, the same problem as described above occurs.

“Means for Solving Problems” As a result of intensive research conducted by the present inventors in view of such actual circumstances, in the case where contents are stored, a container storing the contents is loaded in a transportation vehicle, or sorted at a terminal. Other than the above, for example, while waiting until it is loaded at a collection shop or during transportation by a transport vehicle, open the window provided in the container to introduce cold air into the container to cool the contents, By adopting a method in which the window is closed during the sorting or sorting to cool air in the container, the above problems can be solved all at once, and fresh food can be delivered in a fresh state with maximum storage efficiency. The present invention has led to the provision of a foamed synthetic resin container which is inexpensive and has a simple structure, has no malfunction of opening and closing windows, and allows unmanned work.

That is, the present invention is a heat-insulating container comprising a lid body made of foam synthetic resin and a container body, wherein a window portion is provided on at least one surface of the lid body or the container body, and the window portion is a window frame and the window. It is composed of a movable plate attached to the frame with rubber,
When the movable plate receives a pressing force in the direction perpendicular to the plane from the outside, the rubber expands to press and open to form a vent hole, and when the pressing force is removed, the rubber contracts. By this, the movable plate returns to its original position to close the vent hole, and the content is a foamed synthetic resin container.

The present invention will be described with reference to the drawings showing an embodiment. FIG. 1 is a perspective view of a container of the present invention, and FIG. 2 is an exploded perspective view of the same. In these figures, the container of the present invention comprises a lid (1) and a container body (11), and window portions (21) (21 ') are formed on opposite side wall surfaces (12) (12') of the container body (11). ) Is provided.

3 is an exploded perspective view of the window portion (21), FIG. 4 (A) is a front view, FIG. 4 (B) is a rear view, FIG. 4 (B) is a rear view, and FIG. 4 (C). 4) is a sectional view taken along the line AA in FIG. 4 (A), which is composed of a window frame (31), a movable plate (41), and a rubber band (51) as a stretchable material.

The window frame (31) is provided with through holes (32) (32 ') on both sides, the through holes are connected to the movable plate accommodating portions (33) (33') projecting rearward, and projecting on the outer peripheral side surface part. An edge portion (34) is provided so as to project, and rubber hook portions (35) (35 ') are provided on the upper and lower sides.

The movable plate (41) has door portions (42) (42 ') fitted and closed in the through holes (32) (32') on both sides of the front surface and rubber mounting grooves (43) (43 ') on the back surface thereof. Hemispherical bulging portions (44) (44 ') are provided on the surfaces of the door portions (42) (42').
A through hole (45) is bored in an intermediate portion of the door portion (42) (42 '), and this portion is formed as a concave portion (46) recessed from the surface of the door portion (42) (42'). ing. Both side surfaces of the movable plate (41) have taper portions (47) (47 ') that converge on portions near the back surface.

In the window section (21) of the present invention, the movable plate (41) is fitted into the movable plate accommodating sections (33) (33 ') on the rear surface of the window frame (31), and the door section (4
2) Insert (42 ') into the through holes (32) (32') and move the movable plate (4
Insert the 1) and the window frame (31) into the rubber band (51) (51 ')
Are attached to the upper and lower sides of the rubber hooks (35) and (35 '), respectively, to be assembled.

The window parts (21) (21 ') assembled as described above are attached to the concave mounting parts (13) (13') provided on the side surface parts (12) (12 ') of the container body (11). That is, the projecting edge portion (34) of the window frame may be fitted into the concave grooves (14) (14 ') of the mounting portions (13) (13').

FIG. 5 is a cross-sectional view showing a state in which ventilation holes are formed through the through holes. In the figure, the door parts (42) (42 ') are formed by the rod-shaped bodies (2) (2') via the bulging parts (44) (44 ').
When the movable plate (41) is pressed and the movable plate (41) receives a pressing force in a direction perpendicular to its plane, the rubber bands (51) (51 ') are expanded and the movable plate (41) is accommodated in the window frame (31). (33) (33 ') Retreating inside the window frame (31) through holes (32) (32') and door (42)
A gap is formed between the through hole (32 ') and the through hole (45') so that a ventilation hole is formed between the through hole (32) and the through hole (45 ') as shown by the arrow. Is introduced into the container.
However, in this case, though not shown, the through hole (32)
Part of the cool air introduced from (32 ') gets over the upper and lower concave surface portions (46) of the movable plate (41) and is introduced into the container. Therefore, even if the movable plate (41) is configured only with the through hole (45) or with only the concave surface portion (46) without providing the through hole, the object is sufficiently achieved.

Further, since the movable plate (41) only needs to receive an external force in the vertical direction, the bulging portions (44) (44 ') are not always necessary, and even if the door portions (42) (42') receive the external force directly. good. Further, although FIG. 5 shows the case where both door parts (42) (42 ') are pressed, the movable plate (41) has tapered parts (47) (47') near the back surface. Since there is a door (42)
Even if an external force is applied to either one of (42 '), the movable plate (41) is retracted in an inclined state to form a vent hole. Further, it is preferable to provide two windows on opposite side wall surfaces in the case of differential pressure precooling.

The lid, the container body, and the window of the present invention are made of a foamed synthetic resin, and as the foamed synthetic resin, polystyrene-based, polyolefin-based resins such as polyethylene and polypropylene, and polyurethane-based resin are suitable. In the present invention, the window is not necessarily attached detachably, and for example, the window frame may use the side surface of the container itself.

FIG. 6 is an exploded perspective view showing another embodiment of the window portion used in the present invention. The window portion comprises a window frame (31), a movable plate (41) and a rubber band (51) as an elastic material. Has been done. The window frame (31) is integrally provided with a through hole (32) (32 ') for accommodating the door portion and a through hole (36) for forming a ventilation hole formed therebetween, and Movable plate accommodating parts (33) (33 ') are continuously provided behind the holes (32) (32'), and a projecting edge part (34) is projectingly provided on the outer peripheral side surface part, and rubber catching parts ( 35) (3
5 ') is provided.

The movable plate (41) has door portions (42) (42 ') fitted and closed in the through holes (32) (32') on both sides of the front surface, and rubber mounting grooves (43) (43 ') on the back surface thereof. Hemispherical bulging portions (44) (44 ') are provided on the surfaces of the door portions (42) (42').
An intermediate portion of the door portions (42) (42 ') is recessed from the surface of the door portions (42) (42') to form a concave surface portion (46). Both side surfaces of the movable plate (41) have taper portions (47) (47 ') that converge on portions near the back surface.

The movable plate (41) is housed in the movable plate housing parts (33) (33 ') of the window frame (31), and the door parts (42) (42') are placed in the window frame (31).
The window frame (31) and the movable plate (41) are integrally assembled by being inserted into the through holes (32) (32 ') of the rubber band (51) (51') and the rubber mounting groove (43). The assembly is completed by being hooked on the upper and lower hook portions (35) and (35 ') via (43').

FIG. 7 shows the window frame (31) of the window part assembled as described above.
FIG. 3 is a cross-sectional view showing a state in which a ventilation hole is formed between the movable plate (41) and the movable plate (41).
When a vertical pressing force is applied to the door parts (42) (42 ') from the outside through the (44'), the rubber bands (51) (51 ') are extended and the movable plate (41) is retracted, so that the window A gap is formed between the frame (31) and the movable plate (41) and, as a result, reaches the through hole (36) and the surface of the concave surface portion (46) and passes through the upper and lower ends of the concave surface portion (46). Pores are formed and, for example, cold air is guided as shown by the arrow. When the rod-shaped bodies (2) and (2 ') are removed and the pressing force is removed, the movable plate (41) becomes the rubber band (51).
The contraction force of (51 ') moves forward and makes close contact with the window frame (31),
The through hole (36) is tightly closed by the concave surface portion (46). At the same time, the through holes (32) (32 ') are also closed by the door portions (42) (42'). In the explanation of FIG. 7 above, the numbers with dashes are used for convenience of explanation, but they are not shown.

FIG. 8 is an exploded perspective view showing still another embodiment of the window portion used in the present invention, which includes a window frame (31), a movable plate (41) and rubber bands (51) (51 ') as elastic materials. Become.

The window frame (31) has through holes (32a) to (32f) formed in a grid pattern.
The movable plate accommodating parts (33) (3
3 ') is projected. A projecting edge portion (34) is provided on the outer peripheral side surface portion of the window frame (31), and a rubber hooking portion (35) is provided above and below.
(35 ') is provided.

The movable plate (41) has through holes (32a) to (32f) in the window frame (31).
Has protrusions (48a) to (48e) that are fitted and closed at the both ends, and (48a) and (48f) at both ends project higher than others, and rubber mounting grooves (43) (43 ') are provided on the back surface thereof. Through holes (49a) to (49e) are formed between the adjacent protrusions.

The movable plate (41) is fitted into the movable plate accommodating portions (33) (33 ') of the window frame (31), and the through holes (32a) to (32) of the window frame (31).
With the protruding portions (48a) to (48f) of the movable plate (41) fitted and closed inside the f), the rubber bands (51) and (51 ') are inserted into the rubber mounting groove (4
3) Hook above and below the hooks (35) (35 ') via (43') to form a window.

FIG. 9 shows that the rod-shaped bodies (2) and (2 ') press the protrusions (48a) (48f) at both ends of the movable plate (41) and the movable plates (41) are stretched by the stretching force of the rubber bands (51) (51'). Retreating, the through holes (32b) to (32e) of the window frame (31) and the through holes (49a) to (49) of the movable plate (41).
e) Shows the state of communicating with and forming a ventilation hole. However, not only the through holes (49a) to (49e) but also a part of the vent hole is formed in the direction of getting over the upper end of the movable plate provided with these through holes.

"Operation / Effect" The container of the present invention is suitable for transportation of all perishables,
For example, door-to-door delivery in a fresh state of cooked food simply by heating in a microwave oven is possible by the following steps. To describe a typical work process example in this case, cooking → freezing → packaging (closed; window open / closed state, same below) → collection shop (open) → cargo (closed) → refrigeration transport vehicle (open) →
Terminal sorting (closed)-> refrigerated transportation vehicle (open)-> terminal sorting (closed)-> frozen transportation vehicle (open)-> home delivery, which requires repeated opening and closing operations, but using the container of the present invention makes it easy and reliable Can be done. That is, in the process of a collection shop and a refrigerated transportation vehicle, it is necessary to place the container in the freezer with the window open and introduce the cool air. If the rod-shaped body is designed so as to automatically press the movable plate of the window portion of the container of the present invention when stored in the container, the window is automatically opened only by storing the container in the container. It can be placed in the closed state as soon as it is taken out from the freezer.

Thus, according to the present invention, the extremely cheap and simple structure allows unmanned window opening and closing work of the container, and since there is no malfunction, higher quality assurance is possible, and cooking that is proud of in remote areas It is possible to exchange each other and deliver homemade dishes to single-employees' residences and boarding destinations, enabling an epoch-making delivery system that transcends the conventional delivery frame.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of the container of the present invention, FIG. 2 is an exploded perspective view thereof, FIG. 3 is an exploded perspective view of a window portion, FIG. 4 (A), ( B) and (C) are a front view, a rear view, and a sectional view taken along the line AA of the window, respectively, FIG. 5 is a sectional view showing the opened state of the window, and FIG. 7 is an exploded perspective view showing an embodiment of FIG. 7, FIG. 7 is a sectional view showing an opened state of the window portion, FIG. 8 is an exploded perspective view showing an embodiment of the window portion, and FIG. 9 is an opened state of the window portion. It is sectional drawing shown. 1 ... Lid 11 ... Container body 21, 22 '... Window 31 ... Window frame 41 ... Movable plate 51, 51' ... Elastic material (rubber band)

Claims (2)

[Claims] 1. A heat-insulating container comprising a lid body made of foam synthetic resin and a container body, wherein a window portion is provided on at least one surface of the lid body or the container body, and the window portion has a window frame and the window. The movable plate is attached to the frame with rubber, and when the movable plate receives a pressing force in the direction perpendicular to the plane from the outside, the rubber expands to push it open to form a vent hole. A foamed synthetic resin container having a structure in which when the pressing force is removed, the rubber contracts to return the movable plate to its original position to close the vent hole. 2. The container according to claim 1, wherein two window portions are provided on opposing side wall surfaces.