JPS5810509Y2 - 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 vacuum double bottles have excellent insulation properties, but are easily damaged and expensive. There was a drawback.

Therefore, the present invention aims to provide a heat-insulating container at a low cost that has excellent heat-retaining properties almost equivalent to those using a vacuum double-bottomed bottle, 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-insulating container 1 shown in FIGS. 1 to 3, reference numeral 2 denotes a container body, which is made of transparent glass.

3 is a mirror-like reflective coating, which covers the outer circumferential surface 2a of the container body 2.
It is formed by vacuum-depositing a silver-colored metal.

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 cover, which is made of airtight resin and covers the container body 2.
A pair of upper and lower cover members 5 formed to have slightly larger dimensions
It consists of double-strength spring members 5a and 5b, which are placed over the container body 2 from above and below, and are adhered to each other at the overlapping portion 5C.

In this case, a gap of about 3 to 4 mm is formed between the inner surface of the cover 5 and the outer surface of the container body 2, and a hermetically insulating air layer 6 is formed in this gap.

7 is a spacer provided between the container body 2 and the cover 5 and having heat insulating properties.

Reference numeral 8 denotes a casing, which accommodates the container body 2 inside.

Reference numeral 9 denotes a heat insulating material such as urethane foam or styrene, which is loaded between the cover 5 and the casing 8.

Reference numeral 10 denotes a stopper, which opens and closes the upper spout 2b of the container body 2, and is screwed onto the upper part of the casing 8.

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

Further, the heat conducted to the outside through the container body 2 is prevented from being conducted to the cover 5 by the heat insulating air layer 6 on the outer periphery.

In this case, the heat insulating air layer 6 is kept in a sealed state by the cover 8, and since there is no air circulation with the outside, the thermal conductivity is extremely poor.

Moreover, since there is a heat insulating material 9 around the outer periphery of the cover 5, heat conduction from the cover 5 to the outside is also prevented.

In this way, heat radiation and heat conduction are prevented and the drink is insulated, so the temperature of the drink inside the container body 2 decreases little and is kept warm for a long time.

In addition to the heat-insulating containers of the above-mentioned embodiments, the present invention can also be applied to various heat-insulating containers such as heat-insulating water bottles and lunch jars.

In addition, the material of the container body 2 is not limited to glass, but also aluminum,
Any material such as 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 peripheral surface of the container body but also on the inner peripheral surface.

As shown in the above embodiments, the heat insulating container of the present invention has a container main body inside a casing, a mirror-like reflective coating is formed on the inner peripheral surface or outer peripheral surface of the container main body, and a pair of upper and lower surfaces are formed on the entire outer peripheral surface of the container main body. The casing is covered with an airtight cover to form a sealed insulating air layer between the cover and the container, and a heat insulating material is loaded between the cover and the casing. With specular reflective coating,
Radiant heat emitted outward from the contents inside the container body is reflected inward to prevent heat dissipation to the outside.

In addition, the entire outer periphery of the container body is covered with an airtight cover.
Since it forms an insulating air layer that is kept in a sealed state,
It prevents heat conduction from the container body to the cover, and there is no air circulation between the insulating air layer and the outside, and it exhibits an excellent heat retention effect equivalent to using a vacuum double bottle.

Further, since the heat insulating air layer does not need to be evacuated and the cover is composed of a pair of upper and lower members, it is easy to assemble and can be provided at low cost.

In addition, the cover itself has a reinforcing effect, and the insulating air layer has a buffering effect against external impact, so even if a glass container body is used, it is difficult to break and has excellent durability.

[Brief explanation of the drawing]

1 to 3 show one embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG.
It is a partially enlarged sectional view of the figure. 2...Container body, 2a...Outer peripheral surface, 3
...Specular reflective coating, 5...Cover,
6...Insulating air layer.

Claims (1)

[Scope of utility model registration request] A container body is provided inside the casing, a mirror-like reflective coating is formed on the inner or outer peripheral surface of the container body, and the entire outer periphery of the container body is covered with a pair of upper and lower airtight covers, so that there is no space between the cover and the container. Forms a sealed insulating air layer in the
A heat-retaining container with a heat insulating material loaded between the cover and the casing.