JPH0723174B2 - Foam synthetic resin container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a foamed synthetic resin container, and more particularly to a foamed synthetic resin container provided with a window for injecting cold air or warm air that can be opened and closed easily and reliably. Is.

“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, local special products such as seafood, vegetables and fruits are delivered to consumers while keeping 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 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case, cooling is performed from the outer circumference of the closed cool container, and since it is a cold container originally made of a heat insulating material, the cooling effect is very poor, and only the outer circumference of the container is cooled depending on the transportation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 earnest research in view of such actual circumstances, the inventors of the present invention store the contents, load a container storing the contents on a transportation vehicle, or sort at a terminal. Except, etc., for example, while waiting for cargo to be loaded at a collection store or while being transported by transport vehicle, the windows provided on the container can be easily opened in the refrigerator or freezer provided to introduce cold air into the container. The above problems can be solved all at once by adopting a method in which the window is automatically closed and cold air is enclosed in the container during the other collection or sorting of the above, and the maximum storage efficiency is achieved. It has been found that perishables can be delivered in a fresh state, and the present invention has led to the provision of a foamed synthetic resin container that is inexpensive and has a simple structure, does not malfunction when opening and closing windows, and can be safely operated unattended.

That is, the present invention is a heat-insulated 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 at least one slant. A window frame provided with a hole, and a door provided with a projection that is attached to the window frame by an elastic material and that is inclined or descends in the oblique hole due to expansion and contraction of the elastic material,
When the door receives a pressing force parallel to the plane and in the horizontal direction, the elastic material expands and the projection descends in the oblique hole, so that the door slides in the substantially vertical direction. When the pressing force is removed, the elastic material contracts and the projections ascend in the slanted hole to return the door to the original position and close or form the vented hole. The present invention is directed to a foamed synthetic resin resin container characterized by having the above structure.

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. Further, rubber, spring, etc. are suitable as the stretchable material used in the present invention.
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 feature of the present invention is that when the door receives a pressing force in the horizontal direction, the door moves in a direction different from the pressing force direction, that is, in the vertical direction to form or close the opening, and the pressing force is removed. Then, the opening is closed or formed by returning to the original position. As such a configuration, for example, at least one swash hole is provided in a window frame having an opening, and a projection is provided on the door to slide the projection into the swash hole to expose or close the opening. The structure for opening or closing the opening provided in the window frame and the opening provided in the door by sliding the openings in the same manner as described above to overlap or shift the two openings. Can be mentioned. Note that, contrary to the above, the window frame may be provided with a projection and the door may be provided with an oblique hole.

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.

FIG. 3 is an exploded perspective view of the window portion (21), which is composed of a window frame (22), a door (23), and rubber bands (24) and (24 ') as elastic materials.

The window frame (22) is provided with an opening (25) and oblique holes (26) (26 ') provided in parallel with each other, and the oblique holes (26) (26') are respectively the opening (25) and the window. Rubber band mounting grooves (27) (27 ') facing the side surface of the frame (22) are engraved. Meanwhile, the door (2
3) is a protrusion (28) (2) that fits into the oblique hole (26) (26 ').
8 '), and each of the protrusions (28), (28') is provided with a rubber band mounting groove (29) (29 ') on the outer peripheral surface thereof.

In the window portion (21), the protrusions (28) and (28 ') of the door (23) are fitted into the oblique holes (26) and (26') of the window frame (22), and the rubber band (24) is protruded (28). The rubber band mounting groove (29) and the rubber band mounting groove (27) of the window frame (22) and the rubber band (24 ') are hooked in the rubber band mounting grooves (29') and (27 '), respectively, to complete the assembly. At this time, as shown in FIG. 2, the protrusions (28) of the door (23) are contracted by the contracting force of the rubber bands (24) (24 ').
(28 ') is in a state of being pulled up to the upper portions of the oblique holes (26) and (26'), and in this state, the door (23) has the window frame (22).
When the opening (25) of the above is closed and the pressing force (F) in the direction of the arrow is applied to the door (23), the projections (28) (28 ') are formed in the oblique holes (26) (26'). Is designed so that the door (23) descends and the opening (25) of the window frame (22) is exposed.

The window parts (21) (21 ') assembled as described above are attached to the side wall surfaces (12) (12') of the container body (11). The side wall (12) of the container body (11) has an inner wall (12a) and an outer wall (1).
Window compartment (13) surrounded by 2b) and open on one side
The inner wall (12a) has an opening (14) of substantially the same size as the opening (25) of the window frame (22), and the outer wall (12b) has substantially the same height as the opening (14). It has a step (15). The opposite side wall (12 ') is also surrounded by the inner wall (12a') and the wall (12b '), and is provided with a window accommodating portion (13') which is open on one side, and the inner wall (12a ') is open. Division (14 ′)
The outer wall (12b ') has a step (15').

The window portions (21) (21 ') in the window portion accommodation portions (13) (13')
Are housed respectively, and the lid (1) is covered. The ends of the doors (23) (23 ') of the window parts (21) (21') project to the outside of the container body (11), and the recesses (2) of the lid body (1).
The door (2 ') and the doors (23) and (23') are fitted together.

4 and 5 are longitudinal and lateral (longitudinal) cross-sectional views of the container body with the window portion attached, respectively, and a rubber band (29).
Due to the contracting force of (29 '), the protrusions (28) and (28') are
6) Pulled to the top of (26 '), resulting in opening (1
4) (25) and the stepped portion (15) are closed by the door (23), and the ventilation hole is closed.

6 and 7 are longitudinal and lateral (longitudinal) cross-sectional views showing the state in which the ventilation holes are formed. As shown in FIG. 4, the door (23) has a protruding portion with respect to its plane. When parallel and horizontal pressing force (F) is applied, a rubber band (29)
(29 ') extends and the protrusions (28) and (28') descend in the slant holes (26) and (26 ') to the lower end, and as a result, the door (23) descends to open the opening. (14) (25) and step (15)
To communicate with each other to form a vent hole.

In the present invention, the position, shape, number of openings, sliding direction of the door, how to attach the elastic material, and the like can be varied in many ways, and these are included in the present invention without departing from the spirit of the present invention. .

For example, contrary to the above, the same effect can be obtained even if the oblique hole is provided in the door and the projection is provided in the window frame.

That is, in this case, the window part is attached to the door having at least one oblique hole and the elastic material, and the elastic material expands and contracts to obliquely ascend or descend into the oblique hole. A window frame provided with a projection, and when the door receives a pressing force in a horizontal direction parallel to the plane thereof, the elastic material stretches and the projection obliquely rises in the oblique hole,
The door slides in a substantially vertical direction to form or close with a ventilation hole, and when the pressing force is removed, the elastic material contracts and the protrusion descends in the slant hole, thereby the door. Return to their original position to close or form the vent.

"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 a number of times, but automatically using the container of the present invention It can be done reliably. That is, in the process of a collection shop and a refrigerated transport vehicle, it is necessary to place the container in the freezer with the window open to introduce cool air, but the container is housed so as to press the protruding portion of the door against the wall of the container. And automatically the door of the window portion of the present invention descends to form a ventilation hole,
The door returns to its original position at the same time as it is taken out of the refrigerator, and the ventilation hole is closed. Eventually, the window can be automatically opened simply by storing the container in the refrigerator, and the window can be closed at the same time when it is taken out from the freezer. It can be in a state.

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. Further, it goes without saying that the present invention can be widely applied not only to the cool box for home delivery, but also to the cool box for vegetables, the fish box, the cool box for direct delivery from the production area, the food distribution box, the medicine transportation box, and the like.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a container of the present invention, FIG. 2 is an exploded perspective view of the same, and FIG. 3 is an exploded perspective view of a window portion in the present invention, FIG. FIG. 5 is a cross-sectional view of the container body having a window attached in the longitudinal and lateral (longitudinal) directions, and FIGS. 6 and 7 show the state of the container having a window provided with a vent hole. FIG. 3 is a cross-sectional view in the vertical direction and the horizontal (longitudinal) direction. 1 ... Lid, 2, 2 '... Recessed portion 11 ... Container body, 12, 12' ... Side wall 12a, 12a '... Inner wall, 12b, 12b' ... Outer wall 13, 13 '... Window accommodation Part, 14, 14 '... opening part 15,15' ... step part, 21,21 '... window part 22,22' ... window frame, 23,23 '... door 24, 24' ... rubber band , 25, 25 '... Opening 26, 26' ... Oblique hole, 27, 27 '... Rubber band mounting groove 28, 28' ... Protrusion, 29, 29 '... Rubber band mounting groove

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 at least 1 part.
A window frame having individual sloping holes, and a door that is attached to the window frame with a stretchable material and has a protrusion that descends or rises in the swash hole due to expansion and contraction of the stretchable material, When the door receives a pressing force parallel to the plane and in the horizontal direction, the elastic material stretches and the protrusion descends in the oblique hole, so that the door slides in the substantially vertical direction. To form or close the vent hole, and when the pressing force is removed, the elastic material contracts and the protrusion obliquely rises in the slant hole, whereby the door returns to its original position and closes or forms the vent hole. A foamed synthetic resin container having the structure described below. 2. A door having a window portion having at least one oblique hole, and a projection attached to the door by a stretchable material, and the projection being slanted up or down in the slanted hole by expansion and contraction of the stretchable material. When the door receives a pressing force parallel to the plane and in the horizontal direction, the elastic material expands and the projection obliquely rises in the oblique hole, thereby Slides in a substantially vertical direction to form or close a ventilation hole, and when the pressing force is removed, the elastic material contracts and the projection descends in the slanted hole, so that the door is closed. The container according to claim 1, which has a structure that returns to the position of (1) and closes or forms a vent hole. 3. The container according to claim 1 or 2, wherein two window portions are provided on opposing side wall surfaces.