JP2857070B2 - Cooling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold-retaining tool which has a long cooling-retention time during use, has an appropriate shape, and provides a comfortable use.

[0002]

2. Description of the Related Art A number of applications have been filed with respect to a cooling tool in which a bag is filled with a cooling agent (also referred to as a cooling agent) as a tool for cooling the back of the head, forehead, neck, and other local parts. Here, a polymer-based coolant and an antifreeze are used as the coolant. This cooling tool is used after being cooled for several hours to overnight in a freezer or refrigerator.

[0003] Although it is not related to cold storage tools, Japanese Utility Model Laid-Open Publication No. Hei 6-13640 and Japanese Utility Model Laid-Open Publication No. Hei 6-17548, which are filed by one of the present applicants, disclose a spherical body made of a synthetic resin material. There is a disclosure of a filling made hollow inside and having openings on both sides of the sphere.

[0004]

The cooling device proposed so far achieves the purpose of cooling a local part of the human body, but the cooling effect is reduced in a relatively short time, and is always satisfactory in terms of sustainability. It was not something. In addition, when used as a cool pillow, there was a tendency that flexibility was excessive and comfort was insufficient. Therefore, various measures have been proposed, including a method of using a cooling agent in combination with a foam mat, but the intended purpose of improvement could not be sufficiently achieved despite the complicated structure.

[0005] The object of the present invention is to provide a cold-retaining tool which has a long time for maintaining the cold-retaining property during use, has an appropriate shaping property, and gives a comfortable feeling of use in such a background. Things.

[0006]

According to the present invention, there is provided a cooling device comprising a bag.
(1) is filled with a viscous liquid cooling agent (2) and a spherical shell-like filling (3) consisting of a spherical body having a hollow opening.

Hereinafter, the present invention will be described in detail.

As the bag (1), plastics film, cloth (non-woven fabric, woven fabric, knitted fabric), moisture-permeable waterproof sheet (sheet which has a property that liquid does not leak but water vapor passes), or these A laminate of two or more layers can be used. The bag (1) may or may not have transparency, but if at least part of at least one of the front and back surfaces has transparency, the filling can be confirmed, so This is also preferable.

As the viscous liquid cooling agent (2), hydroxyethyl cellulose, methyl cellulose, ethyl cellulose, carboxymethyl cellulose, polyvinyl alcohol, polyacrylamide, polyethylene oxide, polyacrylate, polyvinyl pyrrolidone, polyvinyl methyl ether, water-soluble polyester, water-soluble polyester Acrylic resin, carboxyvinyl polymer, alginate, gum arabic, gum tragacanth, guar gum, xanthan gum, carrageenan, locust bean gum, casein,
Water-soluble polymers such as glue, gelatin, pectin, dextrin, and other viscous substances derived from animals and plants dissolved in water; super-absorbent polymers swelled with water;
Liquid polymers having an appropriate viscosity such as silicone-based polymers and urethane-based polymers are used.

[0010] As the spherical shell-like filling (3), a spherical shell-like filling consisting of a spherical body having a hollow and an opening is used. A small cylindrical filling obtained by cutting a pipe body is inadequate for the purpose of the present invention because of its poor slidability and damage to the bag (1). Further, in the case of a simple ball-shaped filling, the movement of the viscous liquid cooling agent (2) during use is small, and the desired effect cannot be sufficiently obtained.

Since the spherical shell-shaped filling (3) is used as a cooling tool at a low temperature, it is preferably formed of cold-resistant plastics, especially low-density or high-density polyethylene. Is desirable. Polyethylene is most suitable for the purpose of the present invention in terms of cold resistance, strength, flexibility and cost.

The spherical shell-like filling (3) has a diameter D of 8 to 1 mm.
It is particularly preferable that an opening having a diameter d of 0.2D to 0.7D is formed at a position corresponding to the south pole and the north pole of a hollow spherical body of 8 mm. When the entire diameter D or the diameter d of the opening is extremely out of the above range, the intended effect tends to be insufficiently exhibited.

Regarding the shell thickness t, when the shell thickness is extremely thin, the flexibility becomes excessive, and when the shell thickness t is extremely thick, it becomes difficult to deform. Therefore, for example, the entire diameter D is 10 mm, and the diameter d of the opening is 5 mm. In some cases, it is desirable to set it to about 0.3 to 1 mm.

A hollow ellipsoidal sphere having openings at locations corresponding to both poles, a hollow molded article having a rounded shape in the shape of a fish or an animal, with openings formed at the mouth and tail. Since the shape similar to a sphere also has the same action as a true sphere, it can be used as the spherical shell-like filling (3).

It is desirable that at least one of the above-mentioned bag (1), viscous liquid cooling agent (2) and spherical shell-like filling (3) carry a deodorant or an antibacterial agent. Preferred examples of such deodorants or antibacterial agents are those derived from plants, especially those obtained by vacuum distillation of plants such as tea or their extracts with water or organic solvents.

Viscous liquid refrigerant (2) spherical shell filling per kg
The number of (3) used is usually desirably about 200 to 2,000, particularly desirably about 250 to 1500. When the number of the spherical shell-shaped fillings (3) is out of this range, it is difficult to obtain a sufficient interaction between them.

The cold storage device of the present invention having the above-mentioned structure is provided with a device for cooling the occiput, forehead, neck, and other local parts,
For example, it is useful as a cooling pillow, a cooling headband, an ice sac replacement member, an inflammation affected part cooling member, a tooth pain relief cooling member, a sports cooling member, and the like. Further, the present invention is not limited to the local part of the human body, and can be used as a cool keeping tool for animals and a cool keeping tool for food and drink.

[0018]

The cooling device of the present invention is cooled by placing it in a freezer or a refrigerator before use. However, bag (1)
If you pay attention to the material and its thickness, the viscous liquid coolant (2) can give a considerable cooling feeling even at room temperature, so it is recommended to use it as it is without prior cooling.

In the bag (1), the viscous liquid cooling agent (2) and the spherical shell-like filling (3) interact with each other, and an excellent action and effect that cannot be obtained by either one alone is exhibited.

That is, when a local part of the human body comes into contact with the cooling device, the whole filling material moves along the local shape, and the viscous liquid cooling agent (2) moves by the spherical shell-like filling (3).
The viscous liquid cooling agent (2) entering the hollow portion of the spherical shell-like filling (3) is discharged and flows due to the deformation of the spherical shell-like filling (3). Therefore, an appropriate cooling effect is always exerted, and the cooling effect is maintained for a long time. At this time, since the viscous liquid cooling agent (2) has viscosity, the movement of the spherical shell-like filling (3) at the time of local contact is moderately suppressed, so that a suitable shapeability is obtained and the spherical shell-like filling (3) is obtained. The presence of (3) also provides a pleasant acupressure or stimulating action. And, since the spherical shell-like filling (3) is made of a spherical body, it slides smoothly when a local part comes into contact, and does not damage the bag (1) even when it is thin.

Based on the above-mentioned effects, the comfort of the combined use of the viscous liquid cooling agent (2) and the spherical shell-like filling (3) is remarkably superior to the case where each is used alone.

[0022]

The present invention will be further described with reference to the following examples.

Embodiment 1 FIG. 1 is a cross-sectional view showing an example of the cool keeping tool of the present invention.
FIG. 2 is an explanatory view showing an example of a spherical shell-like filling (3),
(A) is a front view, (B) is a plan view, (C) is a longitudinal sectional view,
(D) is shown in a cross-sectional view.

In a transparent bag (1) having a size of 25 cm × 33 cm made of a polyethylene / nylon / polyethylene three-layer laminate film, a viscous liquid cool comprising a polymer aqueous solution used for a commercial cool pillow 1 kg of agent (2) and Fig. 2
Spherical shell filling made of polyethylene having the shape shown in (3)
A mixture with 600 pieces was filled to prepare a cold-retaining pillow as an example of a cold-retaining tool. The spherical shell filling (3) has an overall diameter D of 10 mm, an opening diameter d of 5 mm, and a shell thickness t of 0.
The one having a size of 45 mm and a weight of 0.12 g was used.

When this chilled pillow is cooled in a freezer or refrigerator and then used, it has an appropriate shaping property for deforming into a shape of a head, a comfortable finger pressure or stimulating action, and an appropriate cooling of the head for a long time. It was extremely comfortable. Also, when the insulated pillow was used without cooling in a freezer or a refrigerator, a considerable cooling feeling was surprisingly obtained and the user had a comfortable use.

Example 2 According to Example 1, a viscous liquid cooling agent (2) composed of a polymer aqueous solution used for a commercial cooling pillow was placed in a transparent bag (1).
And the polyethylene spherical shell filling used in Example 1 (3)
A mixture of 350 or 700 pieces was filled to produce two types of pillows, A and B, as an example of a cooling tool. Let A be the cool pillow that used 350 spherical shell-shaped fillings (3), and B be the cool pillow that used 700 fillers. Further, as a control, a pillow O was prepared using only the polymer gel-based cooling agent (2) and not using the spherical shell-like filling (3). The weight of these cool pillows was 1071 g for O, 1018 g for A, and 104 for B.
8 g.

The pillows of A, B or O are kept at -15 ° C.
After cooling in a freezer for 24 hours, one piece was placed in a cooler box having a capacity of 6 liters, and the temperature in the box was measured over time. Table 1 shows the results. The unit of the air temperature in Table 1 is ° C.

[0028]

[Table 1] Pillow box temperature (℃) and elapsed time type 0hr 1hr 2hr 3hr 4hr 5hr 6hr 7hr 8hr 9hr 24hr O 11 -2 3 4 4 6 7 8 11 13 26 A 8 -4 -2 1 1 2 3 4 6 12 25 B 13 -2 0.5 0.5 1.5 3 4 5 7 10 25 Temperature 25.0 25.1 24.0 23.5 22.5 25.0 24.5 26.0 26.0 27.1 28.3

From the results in Table 1, it can be seen that a spherical shell-like filling made of a hollow and spherical body with an opening is provided together with the viscous liquid cooling agent (2).
It can be seen that when (3) is used together, the cooling effect is exhibited efficiently and lasts for a long time.

[0030]

The cooling tool of the present invention is a viscous liquid cooling agent.
The interaction between (2) and the spherical shell-like filling (3) consisting of a hollow body having an opening has an effective cooling effect, and the cooling effect is maintained for a longer time. A moderate shaping property to transform into a shape and a comfortable acupressure or stimulating action are also exerted to give a comfortable use.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example of the cool keeping tool of the present invention.

FIG. 2 is an explanatory view showing an example of a spherical shell-like filling (3);
(A) is a front view, (B) is a plan view, (C) is a longitudinal sectional view,
(D) is shown in a cross-sectional view.

[Explanation of symbols]

 (1)… bag, (2)… viscous liquid cooling agent, (3)… spherical shell filling

Claims (3)

(57) [Claims] 1. A cooling tool comprising a bag (1) filled with a viscous liquid cooling agent (2) and a spherical shell-like filling (3) formed of a hollow and spherical body having an opening. 2. A hollow shell made of cold-resistant plastics having a diameter D of 8 to 18 mm and having a diameter d of 0.2 to 0.7 D at a location corresponding to the south pole and the north pole. The cooling tool according to claim 1, wherein the opening is formed. 3. A cooling tool according to claim 1, wherein the bag (1) is filled with 200 to 2,000 spherical shell-shaped fillings (3) per kg of a viscous liquid cooling agent (2).