JPH0714739B2 - 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, other special products such as seafood, vegetables and fruits are delivered to consumers while keeping freshness, and ingredients such as dinner are available for consumers to purchase. 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 method is adopted in which after being stored in a container in a frozen or cooled state, it is filled with dry ice, a cold storage agent or ice necessary for delivery to a destination. If, for example, the time required for delivery is longer than the scheduled time, dry ice will run short, resulting in deterioration of the quality of the stored items and, in some cases, spoilage, resulting in a total loss of commercialability. . 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case, cooling is performed from the outer circumference of the closed cool container, and since it is a cold container originally made of a heat insulating material, the cooling effect is very poor, and only the outer circumference of the container is cooled depending on the transportation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 from the outside in a direction parallel to the plane and in the horizontal or vertical direction, the rubber expands so that the movable plate slides to form a vent hole, and the pressing force is removed. The foamed synthetic resin container has a structure in which the movable plate returns to its original position when the rubber is contracted to close the ventilation hole when the rubber is contracted.

The lid, the container body and the window of the present invention are made of foam synthetic resin, and as the foam synthetic resin, polystyrene type, polyolefin type such as polyethylene and polypropylene, polyurethane type resin and the like are preferable. 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. Further, it is preferable to provide two windows on opposite side wall surfaces in the case of differential pressure precooling.

The present invention will be described with reference to the drawings showing an embodiment. FIG. 1 is an exploded perspective view of a container of the present invention. In the figure,
The container of the present invention comprises a lid (1) and a container body (11),
Windows (21) and (21 ') are provided on opposing side wall surfaces (12) and (12') of the container body (11).

2 is an exploded perspective view of the window portion (21), FIG. 3 (A) is a front view, FIG. 3 (B) is a rear view, and FIG. 3 (C) is A in FIG. 3 (A). -A sectional view, FIG. 3 (D) is a sectional view in the case where the ventilation hole is formed, and is the window frame (31) and the movable plate (41).
And a rubber band (51) (52) as a stretchable material.

The window frame (31) has through holes (32a) (32b) (32c) (32d) at approximately equal intervals, leaving a sliding part (36) on one side, and accommodates a movable plate protruding like a frame in the periphery. Part (33) (33 ') is provided,
At the same time, the accommodating portion (33 ') is provided with rubber hooking portions (33'a) (33').
It also serves as b). A protruding edge portion (34) is provided on the outer peripheral side surface portion, and rubber hooking portions (35) (35 ') are provided on the upper and lower protruding edge portions.

The movable plate (41) includes a sliding operation part (43) having a bulging part (42) on its surface and through holes (44a) (44b) (44c) (44d).
A rubber mounting groove (45) is engraved on a substantially intermediate back surface between the upper and lower end surfaces and the through holes (44c) (44d). As shown in FIGS. 3 (A) and 3 (C), the movable plate (41) is housed in the movable plate housing portions (33) (33 ') of the window frame (31) as will be described later. It is made smaller than the accommodating part by the width d when it is moved to the parts (35'a) (33'b) side, and in this state,
The through holes (44a) (44b) (44c) (44d) of the movable plate (41) are the sliding portion (36) and the non-permeable hole portion (37a) of the window frame (31), respectively.
When the movable plate (41) is closed by (37b) and (37c) and slides by the width d, the through holes (44a) to (44a) of the movable plate (41) to (44d) and window frame (31)
The through holes (32a) to (32d) are communicated with each other to form a vent hole.

In the window portion (21) of the present invention, the movable plate (41) is fitted into the movable plate accommodating portions (33) (33 ') on the surface of the window frame (31), and the rubber band (51) is attached to the rubber mounting groove ( 45), and attach the loop-shaped parts (51a ') (51b') of the rubber band to the window frame (31), respectively.
To the rubber hooks (33'a) (33'b) of the window frame (3
On the upper and lower rubber hooks (35) (35 ') of 1), other rubber bands (5
2) can be hung and assembled. As shown in FIGS. 3 (A) to (C), the assembled window portion has a movable plate (41) which is contracted by a rubber band (51) so that the movable plate (41) has a rubber hooking portion (33) in a movable plate accommodating portion of the window frame (31). ′ A) (33′b) side, and as shown in FIG. 3 (C), through holes (44a) through the movable plate (41)
(44d) is a sliding part (36) of the window frame (31), a non-permeable part (37a)
To (37c), and the through holes (32a) to (32d) of the window frame (31) are the non-through holes (46) of the movable plate (41).
They are in the closed state by a) to (46d).

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'). Incidentally, the projecting edge portion (34) of the upper surface forms a so-called inner-saddle type container together with the projecting portions (15) (15 ') of the container body after the window is mounted on the container body.

FIG. 3 (D) is a cross-sectional view showing a state in which ventilation holes are formed through the through holes. In the figure, when the movable plate (41) is pressed by the rod-shaped body (2) or the like through the bulging portion (42) from the outside in a direction parallel to the plane and in the horizontal direction, the rubber band (51) is When the movable plate (41) is extended, the movable plate (41) retracts inside the housing portions (33) (33 ') of the window frame (31) to move through the through hole (32
a) to (32d) and the through holes (44a) to (44d) of the movable plate communicate with each other to form a ventilation hole, and, for example, cool air is introduced into the container through the ventilation hole. When the pressing force is removed, the rubber band (51) contracts and returns to its original state, and the vent hole is closed.

4 (A) and (B) show another embodiment of the present invention,
The example which provided the temporary stop mechanism is shown.

That is, the sliding portion (36) of the window frame (31) is provided with a convex portion (38) on its surface, while the movable plate (36) is provided with a convex portion (38) on its surface, while Recesses (47) (47 ') into which the projections (38) can be fitted are provided on the back surface of the sliding operation portion (43) of the movable plate, and the recesses (47) (47') are shallower than the recesses (47) (47 ') between the recesses. And, a groove (48) is formed which is shallower toward (47 ') than (47). With such a structure, the movable plate (41)
When pressure is applied from the outside to the convex part (38), the convex part (38)
7) escapes, passes through the groove (48), reaches the recess (47 '), and is inserted. As a result, even if the pressing force is removed, it is possible to maintain the state in which the vent holes are formed as shown in FIG. 4 (B). Movable plate (41) when closing the vents
Grasp the bulging part (42) of the
8) is detached from the concave portion (47 '), and the vent hole of FIG. 4 (A) is closed by the contracting force of the rubber band (51).

FIG. 5 is an exploded perspective view showing another embodiment of the window portion used in the present invention, FIG. 6 (A) is a front view, and FIG. 6 (B) is B.
6B is a sectional view taken along the line CC, and the window portion includes the window frame (31), the movable plate (41), and a rubber band (5) as an elastic material.
It consists of 1) and (52). The window frame (31) has a lower half sliding portion (36) and upper half through holes (32a) (32b) (32).
c) (32d) with a movable plate accommodating part (33) projecting in the shape of a frame around it, and rubber mounting holes (33a) (33b) at the top and bottom
(33a ') and (33b') are engraved. A protruding edge (34) is provided on the outer peripheral side surface, and a rubber hooking portion (34a) (3
4a ') and (34b), (34b), (34b') and (34b ') are provided above and below.

The movable plate (41) has a width that can be accommodated in the movable plate accommodating portion of the window frame (31) and a height sufficient to close the through holes (32a) to (32d) of the window frame. Is provided with an inclined surface (43) whose cross section expands downward, and rubber mounting grooves (47) (47 ') are provided at both left and right ends thereof, and a rubber mounting groove (46) () is also provided on the inclined surface (43). 46 '). The rubber mounting groove (47) (47 ') communicates with the rubber mounting groove (47 ") formed on the back surface of the movable plate.

The movable plate (41) is placed in the movable plate housing (33) of the window frame (31).
, And a rubber band (51) is used, and (51c) is placed in the rubber mounting groove (47 ″) on the back of the movable plate, and loop parts (51a) (51
b) to the rubber mounting grooves (47) (4
7 '), (51d) is hooked on (34a) (34a'), the window frame (31) and the movable plate (41) are integrally assembled, and the rubber band (52) is attached to the movable plate accommodating portion ( 33) Upper rubber mounting groove (33a)
(33b) (33a ') (33b') and the rubber mounting grooves (46) (46 ') on the movable plate, the upper and lower hook portions (34b) (34b), (34b) on the projecting edge portion (34). ') (34b') is hooked to complete the assembly. In this state, the movable plate (41) receives the contraction force of the rubber band (51) and the housing portion (33) of the window frame (31).
The holes (32a) to (32d) are closed by being pulled upward.

FIG. 6 (D) is a cross-sectional view showing a state in which a vent hole is formed between the window frame (31) of the window part assembled as described above and the movable plate (41), and the rod-shaped body (2) is shown. When a pressing force is applied downward by the inclined surface (43) of the movable plate (41), that is, from the outside in a direction parallel to and perpendicular to the plane, the rubber band (5
1) is extended and the movable plate (41) is slid downward,
As a result, the through holes (32a) to (32d) of the window frame (41) are exposed to form ventilation holes, and, for example, cool air is guided into the container.
When the rod-shaped body (2) is removed and the pressing force is removed, the movable plate (41) is pulled upward by the contracting force of the rubber band (51) to close the through holes (32a) to (32d) and close the vent hole. It
In this case as well, it goes without saying that the temporary stop mechanism as shown in FIGS. Further, in the present invention, many variations such as the shape of the through holes, the number, the sliding direction of the movable plate, the way of applying the rubber, and the like are possible, and these variations are included in the present invention without departing from the spirit of the present invention. It

"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 transport vehicle, it is necessary to place it in a freezer with the window open and introduce cold air, but for example, a rod-shaped body is projected at a predetermined position on the inner wall of the freezer, and the container is 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 in a predetermined direction when the container is housed in the container, the window is automatically opened only by housing the container in the container. It can be opened and can be closed as soon as it is taken out of 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 drawings]

FIG. 1 is a perspective view showing an embodiment of the container of the present invention, FIG. 2 is an exploded perspective view of a window portion, and FIGS. 3 (A), (B), (C) and (D) are the window portions respectively. Front view, rear view, AA cross-sectional view, and cross-sectional view showing a state where a movable plate slides to form a vent hole, and FIGS. 4A and 4B show other embodiments of the window portion. 5 is an exploded perspective view showing still another embodiment of the window portion, FIGS. 6 (A), 6 (B) and 6 (C) are front views of the window portion, and a cross section taken along line BB, respectively. The figure, CC sectional drawing, and the same (D) are sectional views showing the state where the movable plate slid to form the ventilation holes. 1 ... Lid 11 ... Container body 21, 21 '... Window 31 ... Window frame 41 ... Movable plate 51, 52 ... Elastic material (rubber band)

Claims (3)

[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 by rubber, and when the movable plate receives a pressing force from the outside in a direction parallel to the plane and in the horizontal or vertical direction, the rubber expands to slide the movable plate. A foamed synthetic resin container having a structure that moves to form a vent hole, and when the pressing force is removed, the rubber contracts to return the movable plate to the 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. 3. When the movable plate slides by a pressing force to form a ventilation hole, the concave portion or the convex portion provided on the window frame and the convex portion or the concave portion provided on the movable plate are fitted and locked. The container according to claim 1 or 2, which has a structure of: