JPS5810508Y2 - thermal container - Google Patents

Description

[Detailed explanation of the invention] Currently, vacuum double bottles are used for thermos containers such as thermos flasks, water bottles, lunch jars, etc., but although vacuum double bottles have excellent insulation properties, they are easily damaged and expensive. There were drawbacks.

Therefore, the present invention aims to provide an inexpensive heat-insulating container that has almost the same excellent heat-retaining properties as a vacuum double bottle, but is resistant to breakage and has excellent durability.

An embodiment of the present invention will be described in detail below with reference to the drawings.

In the heat insulation container 1 shown in the drawing, 2 is a container main body,
It is made of transparent glass.

Reference numeral 3 denotes a mirror-like reflective coating, which is formed by vapor-depositing a silver metal on the outer circumferential surface 2a of the container body 2.

A silver protective film 4 made of resin paint or the like is formed on the outer peripheral surface of the specular reflective film 3.

5 is a casing, and the container body 2 is housed inside.

Reference numeral 6 denotes a heat insulating material made of elastic polystyrene foam, and this heat insulating material 6 is placed between the casing 5 and the container body 2.

A lattice-shaped partition wall 11 is integrally provided on the inner surface of the heat insulating material 6 to divide it into a plurality of independent chambers 9a, and this lattice-shaped partition wall 11 is brought into direct contact with the outer surface of the container body 2. This constitutes a heat insulating air layer 9.

By dividing the heat insulating air layer 9 into a plurality of independent chambers in this manner, a static state of the air is obtained, the thermal conductivity of the heat insulating air layer 9 is reduced, and heat retention is improved.

Reference numeral 10 denotes a stopper for opening and closing the upper spout 2b of the container living body 2, and is screwed onto the upper part of the casing 5.

In the heat-retaining container configured as described above, the heat radiated from the contents of the container body 2 during use is radiated outward, but the specular reflective coating 3 on the outer circumferential surface 2a of the container body 2 prevents the heat from being emitted from the outside of the container body 2. radiation of heat to is prevented.

Furthermore, the heat conducted to the outside through the container body 2 is prevented from being conducted to the outside by the outer circumferential heat insulating air layer 9 formed by the plurality of independent chambers 9a.

Moreover, since there is a heat insulating material 6 directly on the outer periphery of the heat insulating air layer 9, the heat insulating effects of the heat insulating air layer 9 and the heat insulating material 6 work together to exhibit an excellent heat insulating effect, and the temperature of the contents of the container body 2 decreases. It has almost the same insulation properties as using a vacuum double bottle, and can be kept warm for a long time.

Furthermore, during manufacturing, a lattice-like partition wall 1 is provided on the inner surface of the heat insulating material 6.
It is only necessary to form the container body 1 integrally and press it against the outer surface of the container body 2 which the reflective coating 3 has, and it can be provided at a lower cost than that using a vacuum double bottle.

In the above embodiment, the sizes of the plurality of independent chambers 9a are made equal, but as shown in FIG. It is also possible to make the insulation air layer 9 different.

When the sizes of the adjacent independent chambers 9 a and 9 b are made different in this way, a pressure difference is generated due to air expansion within the independent chambers, a heat generation effect is obtained, and heat retention is further improved.

The present invention can be applied to various types of heat-retaining containers other than heat-retaining containers, such as water bottles and lunch jars.

Further, the material of the container body is not limited to glass, and any material such as aluminum or stainless steel may be used, and the thinner the container body is, the worse the thermal conductivity and the better the heat retention.

The specular reflective coating may be provided not only on the outer circumference of the container body but also on the inner circumference.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, Fig. 3 is a partially enlarged sectional view of Fig. 1, Fig. 4 is a partial perspective view showing the main parts, and Fig. 5 FIG. 2 is a partial perspective view of main parts showing another embodiment. 2...Container body, 3...Specular reflective coating, 5...Casing, 9...Insulating air layer, 9a, 9b... ...Independent room.

Claims (1)

[Scope of utility model registration request] 1. A container body is provided inside the casing, a mirror-like reflective coating is formed on the inner peripheral surface or outer peripheral surface of the container body, and the container body and the casing are partitioned by a lattice-like partition wall integrally protruding from the inside, and a plurality of independent A heat insulating container characterized in that a chamber is filled with an elastic heat insulating material such as styrofoam, and the inner surface of the partition wall of the heat insulating material is brought into direct contact with the outer surface of the container body to form an insulating air layer on the outside of the container body. 2. The heat-insulating container according to item 1, wherein the adjacent independent chambers have different sizes.