JPS645735Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to the improvement of a cold storage container used, for example, in a machine for producing frozen desserts such as ice cream, a cooler for soft drinks such as iced coffee, or an ice bucket.

Generally, when frozen dessert ingredients are placed in a frozen cold storage container, they start to freeze on the inside of the container, but because they stick to the inside of the container so strongly, it is troublesome to scrape off the frozen dessert with a scraper, spoon, spatula, etc. If scraped off with strong force, the tip of a spoon or spatula could damage the container.

This invention was made with the intention of solving the above problem, and its gist is that the inner peripheral surface of the cold storage container is coated with a non-adhesive resin. By making use of smoothness, that is, a small coefficient of friction, it improves the peelability of frozen desserts, etc., and the frozen layer can be quickly replaced with the unfrozen part, which shortens the production time of frozen desserts, etc. Furthermore, it is an object of the present invention to provide a cold storage container characterized in that the inner surface is made smooth to improve hygiene.

Examples of this invention will be described below based on the drawings.

FIG. 1 is a longitudinal cross-sectional view showing an example of the cold storage container of this invention, and shows the case where it is used for manufacturing frozen desserts such as ice cream, ice buckets, etc. In the figure, 1 is a bottomed cylindrical outer container made of metal such as aluminum, and 2 is a bottomed cylindrical inner container also made of aluminum or other metal, and the openings of these inner and outer containers 1 and 2 are A space 3 is formed between both containers 1 and 2 by being rolled and tightened together.
is formed. In this case, before the containers 1 and 2 are rolled together, the cold storage agent 5 is sealed in the space 3, leaving a predetermined gap 4. The cold storage agent 5 is, for example, based on water or carbonated water to which a necessary amount of organic or inorganic substances such as alcohol, glycol, ethylene glycol, and sodium chloride, and an organic thickener to achieve a desired viscosity are added.
Its melting temperature is adjusted within the range of -7°C to -17°C.

On the other hand, the inner peripheral surface of the inner container 2 is coated with a non-adhesive resin 6 to smooth the inner peripheral surface of the inner container 2 and improve hygiene. In other words, even if frozen dessert material (not shown) is poured into a frozen container, the non-adhesive properties of the resin 6 smooth the surface and reduce the coefficient of friction, so that the frozen dessert material does not stick to the inner container 2 and is easily removed. It is designed so that it can be scraped off with a scraper, spoon, spatula, etc. In this case, the non-adhesive resin 6 is, for example, a fluororesin or a silicone resin.

Next, the processing mode of the non-adhesive resin 6 will be explained with reference to FIGS. 2 to 4.

FIG. 2 shows a case where the inner circumferential surface of the inner container 2 is directly coated with the resin 6. After coating the resin 6 of the above material on the inner circumferential surface of the inner container 2 made of aluminum, baking is performed. This is a case where coating processing is performed.

Figure 3 a and b show alumina 7 on the inner peripheral surface of the inner container 2.
This is a case where the resin 6 is sprayed, then painted and fired. In this case, the inner container 2 is processed into a hollow cylinder and then anodized.

4a and 4b show the case where the inner circumferential surface of the inner container 2 is shot blasted with a sandblast or the like to form a rough surface 8, and the surface is coated with resin 6 and fired. In this case, shot blasting is performed before the inner container 2 is deep drawn.

On the other hand, the outer container 1 is subjected to alumite processing after drawing.

Note that a recess 2a for guiding a shaft (not shown) of a stirring blade (scraper), etc. is formed in the center of the bottom of the inner container 2;
It is also desirable to coat the surface of the opening expanding surface portion 2b of the inner container 2 with the resin 6 in the same manner.

As explained above, the cold storage container of this invention is made by coating the inner peripheral surface of the inner container 2, which cooperates with the outer container 1 to form a double container, with a non-adhesive resin 6. The inner circumferential surface of the indoor water heater 2 is made smooth to reduce the coefficient of friction, and even when frozen dessert ingredients are put in, there is no fear that the frozen dessert ingredients will stick to the inner circumferential surface, and it can be easily scraped with a scraper, spoon, etc. You can scrape off frozen desserts with a spatula. In addition, during the process of making frozen desserts, the frozen layer can be peeled off from the inner surface of the cold storage container and quickly replaced with unfrozen ingredients, increasing the heat exchange efficiency between the frozen dessert ingredients and the cold storage container. be able to.

The cold storage container of this invention can also be used as a container other than the above-mentioned frozen dessert maker such as ice cream or an ice bucket. For example, when used as a cooler for iced coffee, etc., the non-adhesive resin 6 It has remarkable utility value, such as being resistant to stains and being advantageous in terms of hygiene.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing an example of a cold storage container of this invention, Fig. 2 is a sectional view of main parts showing a first embodiment of resin coating processing in this invention, and Figs. 3 a and b are resin coatings. FIGS. 4A and 4B are sectional views of main parts showing a second embodiment of processing, and FIGS. 4A and 4B are sectional views of main parts showing a third embodiment of resin coating processing. In the figure, 1...outer container, 2...inner container, 3
...Space, 4...Void, 5...Cold storage agent, 6...Non-adhesive resin, 7...Alumina, 8...Rough surface.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A metal bottomed cylindrical outer container and a metal bottomed cylindrical inner container whose inner peripheral surface is treated with non-adhesive resin. This cold storage container is made by wrapping the container together to form a double container, and filling and sealing a cold storage agent into the space between the inner and outer containers. 2. The cold storage container according to claim 1, wherein the non-adhesive resin is a fluororesin. 3. The cool storage container according to claim 1, wherein the non-adhesive resin is a silicone resin.