JPS5845260Y2 - insulated container - Google Patents

Description

[Detailed Description of the Invention] The present invention mainly relates to an insulated container that stores fish, food, and drinks together with ice to maintain the temperature at a low temperature.

Generally, this type of insulated container is designed to provide heat insulation by filling a heat insulating material such as styrofoam between the outer can and the inner pot, but the heat insulating effect of this heat insulating material is not sufficient, and it is not suitable for fishing, fishing, eating or drinking. There are problems in that it is not possible to maintain the contents such as objects at a low temperature for a long period of time, the weight is relatively heavy, the manufacturing is complicated and time-consuming, and the manufacturing cost is high.

Therefore, the present invention was devised to solve these problems.The purpose is to be easy to manufacture and reduce costs, while having a high insulation effect that can be used to store fish, food, etc. for a long time. To provide a heat insulating container which can maintain contents at a low temperature and is extremely light and convenient to handle and transport.

That is, the present invention is a container consisting of a container main body with an open upper surface and a lid attached to the main body so as to be openable and closable, and an inner plate and an outer plate are provided by blow molding the surrounding wall of the container main body. The main body is formed into a sealed hollow shape, and at least one of the inner plate and the outer plate is formed with a number of support columns facing the other, and the air in the hollow part of the main body is sucked to create a vacuum. It is something.

Embodiments of the present invention will be described below based on the drawings.

In the figure, 1 is a container body whose top surface is open, and 2 is a lid attached to the top of the container body 1 so as to be openable and closable in order to close the opening of the container body 1. The surrounding wall of the container body 1 is formed by blow molding. It is formed into a sealed hollow shape, and the air inside the hollow part of the surrounding wall is sucked through the air bleed port 31 to create a vacuum.

Note that this air bleed port 31 is sealed with an air bleed plug 3 or the like.

Therefore, the surrounding wall of the container body 1 includes an inner plate 11 and an outer plate 12.
The inner plate 11 and the outer plate 12 are integrally formed in a closed hollow shape, and a large number of support columns are formed on at least one of the inner plate 11 and the outer plate 12, which face the other.

What is shown in the drawing is that this outer panel 12 is partially connected to the inner panel 11.
A large number of inwardly curved concave portions 13 are formed on the outer plate 12 so as to be close to the container body 1. Forming a large number of mutually communicating compartments 14 in the hollow part,
The vacuum of each compartment 14... measures the heat insulation in the surrounding wall of the container body 1, and each of the concave curved portions 13...
... was used to strengthen the surrounding wall.

Further, 15 constitutes the support column together with the concave curved portions 13, and is a bulging protrusion formed at the top of each concave curved portion 13. 15...
When the inner cavity of the enclosure wall in the container body 1 is evacuated by .
Prevent contact with...

Further, numeral 16 in the figure is a decorative outer plate.

On the other hand, the lid 2 is also formed into a sealed hollow shape by blow molding like the container body 1, and the air inside the hollow part of the lid 2 is sucked through an air bleed port 41 to create a vacuum, and after the air is bleed, the air bleed port 41 is plugged. 4, etc. to seal it.

The lid body 2 is integrally formed with an inner plate 21 and an outer plate 22 in a sealed hollow shape, and a large number of parts are attached to the inner plate 21 so that the inner plate 21 is partially close to the outer plate 22. The lid body 2
A large number of mutually communicating compartments 24 are provided in the inner hollow part.
are formed, and the insulation of the lid body 2 is measured by the vacuum of each compartment 24.
This is intended to strengthen the lid body 2.

In the figure, numerals 25, . . . are projections formed on the tops of the respective concave curved portions 23, and numeral 5 is a ring-shaped packing.

According to the insulated container of the present invention, a large load is applied to the inner and outer plates in the direction toward each other due to the pressure difference between the vacuum pressure inside the inner and outer plates and the atmospheric pressure outside. Even if both the inner and outer panels are made sufficiently thin, the struts provided between the inner and outer panels will ensure that they are supported at a predetermined distance from each other, making the overall structure strong and lightweight. , it can be made convenient for handling and transportation, and at the same time,
Because there is a vacuum between the outer panels, it has a great insulation function.Moreover, since the inner, outer panels, and struts are integrally formed by blow molding, it is easy to manufacture parts for the container body, and there are no parts for the entire container. The number of parts is small, the number of assembly steps can be reduced, and it can be done extremely economically.

As shown in FIG. 3, in the present invention, the container body 1 is composed of an inner chisel 1a and an outer wire 1b, and the inner and outer wires 1a, lb
is formed into a sealed hollow shape by blow molding as in the previously described embodiment, and the concave curved portion 13a of this inner chisel 1a serves as the support.
......, the compartment 14b of the outside line 1b...
The inner and outer wires 1a and 1b are fitted to each other so that the concave curved portion 13b of the outer wire 1b corresponds to the compartment 14a of the inner bolt 1a to further enhance insulation and reinforcement. Alternatively, the lid body 2 may also be configured in the same manner.

Further, as shown in FIG. 3, each concave portion 23 of the lid body 2...
. . . may be filled with a heat insulating material such as polyurethane foam or polystyrene foam, and in the embodiment described above, each concave portion 13 of the container body 1 may be filled with a heat insulating material in the same way. You may.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway perspective view thereof, FIG. 2 is a vertical sectional view thereof, and FIG. 3 is a partially cutaway front view showing another embodiment. 1...Container body, 11...Inner plate, 12
...Outer plate, 2...Lid body.

Claims (1)

[Scope of utility model registration request] A container consisting of a container body with an open upper surface and a lid attached to the main body so as to be openable and closable, and the surrounding wall of the container body is formed by blow molding into a sealed hollow shape having an inner plate and an outer plate. and at least one of the inner plate and the outer plate,
A heat insulating container characterized by forming a large number of pillars facing the other side, and sucking air from a hollow part of the main body to create a vacuum.