JPH01178268A - Clothing for searching infrared ray source - Google Patents

Abstract

PURPOSE:To discover a victim quickly by interweaving all over or a part of a cloth with heat-generating elements which are capable of generating heat higher than 20 deg.C. CONSTITUTION:Heat-producing elements include, for examples, fibers vacuum- evaporated or electro-plated with electro-conductive metals, polyester films vacuum-evaporated with Au, In-Sn or other oxides, or fabrics woven with alloy and cotton fibers and covered with polyester films. As an energy source for generating heat, a battery may be connected to the heat-generating elements via a switch which is turned ON to supply electricity as needed. The target object for search can be easily recognized by detecting the infrared rays generated from the cloth by using an infrared image monitoring instrument applied with CCD (charge coupled device). One or more plastic envelopes filled with quicklime and provided with a device for gradually introducing moisture into them can be also attached to the cloth to use them as heat-generating elements.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to clothing for infrared search, which can quickly find a lost person in a sea area or a mountainous area, regardless of weather conditions, and even at night. It is particularly effective in saving lives during cold seasons.

[Prior art] For example, in preparation for a marine accident in northern waters during the cold season,
Water-resistant and cold-resistant life jackets have been developed for the purpose of saving lives, and some of these have retroreflective sheets attached to part of their outer surface to facilitate nighttime maritime investigations using searchlights. There is something.

[Problems to be Solved by the Invention] In order to find a person in distress using such a method, it is essential to conduct the search from a short distance where light can reach. However, searching for victims often requires a quick and safe search over a wide area during stormy weather, and the search is generally conducted from high above by aircraft. The light could not reach the sea and it was not possible to see the victims.

The present invention was made in view of these circumstances, and
It is an object of the present invention to provide clothing for infrared search that can easily achieve the search purpose even in the case of nighttime search from a long distance by aircraft.

[Means for Solving the Problems] The gist of the present invention is that a heating element capable of generating heat to a temperature of 20° C. or higher is disposed in all or part of the clothing.

[Operations] In short, the present invention uses CCD (
The key point of this system is that it is configured so that the object to be searched can be easily confirmed by capturing it using an infrared imaging device that uses a charge-coupled device (charge-coupled device).

All objects at a temperature above absolute zero emit infrared rays from their surfaces, and such infrared rays are detected by an infrared imaging device (hereinafter sometimes referred to as COD in a car). In this case, 3 to 5 μm and 8 to 12 μm are less susceptible to noise from atmospheric water vapor, CO2, etc.
m wavelength band is used for detection.

However, since the body surface temperature of a person in distress floating in cold water is low, the generation of infrared rays not only in the 3-5 μm wavelength band but also in the 8-12 μm wavelength band is extremely weak and cannot be detected by a CCD.

Therefore, the present inventors came up with the idea of arranging a heating element in the clothing of workers and mountain climbers of ship operators. If the heating element generates sufficient infrared rays of the above-mentioned wavelengths and generates heat to a certain temperature, it will be easy to detect by COD, and therefore it will be possible to detect victims wearing such clothing from high in the air. is easy.

The heating element used in the present invention is not particularly limited in type or configuration as long as it is made of a material that can be placed on clothing. Au or IT on plated or polyester film
Examples include surface heating elements such as ones on which metal such as O (In-Sn oxide) is vapor-deposited, or knitted fabrics made by aligning alloy wires and threads such as cotton, and covered with polyester films. .

To generate heat, connect a battery to the heating element and turn it on with a switch when necessary.

In addition, one or more synthetic resin film bags containing, for example, quicklime are attached to clothing, and a moisture introducing means for gradually introducing moisture into the synthetic resin film bag is provided at an appropriate position on the bag. can also be used as a heating element. This is because the quicklime inside the bag generates heat due to moisture that has entered the bag through the moisture introducing means.

The moisture introducing means may be anything that allows moisture to seep into the bag little by little, and its configuration is not particularly limited, but for example, rayon or other hydrophilic fibers, hollow fibers, If a fiber bundle such as a synthetic fiber whose surface has been made hydrophilic is released from the inside of the bag to the outside, moisture can be introduced through the capillary action of the fibers.

Moreover, in addition to the type that automatically introduces moisture as described above, it is also possible to use one in which the user manually introduces moisture.

In addition, if an automatic type and multiple manual types are installed in combination, and after the automatic type finishes heating, the user can introduce moisture into each bag at different times. , the heating time of the heating element can be sustained.

In addition to quicklime, the exothermic agents include Na, Co3゜Fe5C.
)4. MgCl2, 2SO4, LiBr, etc. can be used.

The synthetic resin film used in the present invention may be any material as long as it is water-impermeable and has a melting point higher than the exothermic temperature of the exothermic agent such as quicklime, and examples thereof include polyethylene, polypropylene, polyvinyl chloride, polyester, and polyvinyl alcohol. be done. Such a heating element utilizes the reaction heat generated by the reaction between quicklime and moisture, and therefore can be used primarily for sea rescue purposes.

Another method is to place ceramics near the heat source and use the infrared rays generated by heating the ceramics with the heat source.

The method of attaching such a heating element to clothing is not particularly limited, but for example, adhesive may be used, it may be sewn into a seam allowance made in advance on clothing, or it may be fastened with hooks or the like.

By the way, the heat generation temperature of these heating elements is such that a sufficient amount of infrared rays in the 3 to 5 μm and 8 to 12 μm wavelength bands are generated, and the CCD
It is necessary to be in a temperature range that allows reliable exploration by
Any material that is adjusted to generate more heat may be used. The higher the temperature, the easier it is to generate infrared rays, but in consideration of the thermal effects on the human body and clothing, it is preferable that the temperature is 60° C. or lower.

The placement of such a heating element is not limited to the outer surface of the clothing; it may also be placed inside the clothing so that the temperature of the outer surface is 20°C or higher, but consideration must be given to heat generation efficiency. If so, it is preferable to arrange it on the outer surface of the garment. It may be placed on the entire surface of the clothing or on a part of the clothing, but if it is placed partially on the shoulders, the area extending from the shoulders to the chest, the arms, etc., it will prevent marine accidents. This is especially useful when searching for and rescuing a person in distress who is holding on to a life preserver and is drifting adrift with their shoulders, arms, etc. exposed above the water surface in the event of an accident.

By the way, as mentioned above, the present invention is constructed for the purpose of generating a sufficient amount of infrared rays since the infrared rays of the desired wavelength generated by the human body in a cold environment are weak.
From this point of view, if the clothing on which the heating element is provided is cold-resistant and water-resistant life-saving work clothes, it is particularly effective for saving lives in cold sea areas.

However, the period of use of the infrared exploration clothing according to the present invention is not limited to the cold season. The point of the present invention is to use the properties of infrared rays to search for victims who are difficult to see directly with the naked eye at night, so the key point of the present invention is what kind of clothing to choose and what kind of structure it should have. isn't it. Therefore, it goes without saying that the user can freely select clothing such as working clothes for ship operations worn outside the cold season, other mountain climbing clothing, or life jackets in case of an aircraft malfunction and landing on water.

Examples will be described below, but the present invention is not limited to the following examples, and it is within the technical scope of the present invention to make appropriate designs and changes in accordance with the spirit of the preceding and following descriptions.

[Example Example 1] A tricot made of polyester filament was used as the lining, a sheet of nylon filament fabric coated with vinyl chloride was used as the outer material, and a 3 mm thick urethane foam was placed between the lining and the outer material as a heat insulating layer. A bibal suit in the form of overalls was created using cold-resistant and water-resistant clothing materials laminated together. A surface heating element was sewn into the area of this survival suit ranging from the shoulders to the chest.

The surface heating element used was a knitted fabric made by aligning cotton threads and alloy wires, which was then covered with a polyester film. A nickel-cadmium battery was used as the heat source.

The output current was 0.8A, and the input terminal was 12V DC.

When this survival suit was worn in an environment with an outside temperature of -5°C and a wind speed of 5 m/sec, and electricity was applied to the heating element, the surface temperature of the heating element was 40 to 50°C.

In addition, without attaching a heating element to the above survival suit, the outside temperature -
The suit was worn in an environment of 5°C and a wind speed of 4 m/sec, and the surface temperature of the suit was measured to be -1 to 5°C.

Example 2 A doll wearing the survival suit of Example 1 was floated on the sea at a seawater temperature of 10 m/s and a wind speed of 10 m/s.
When we searched from 0m using an infrared imaging device using COD, we were able to clearly confirm its existence. On the other hand, Futa was unable to confirm the existence of the doll after wearing Ma's survival suit without the heating element and conducting a similar test.

Example 3 As shown in FIG. 1 as an explanatory sectional view, a plurality of polyester film bags 3 containing quicklime 2 were attached to both arms of the survival suit 1 of Example 1 using an adhesive. These eight bags were provided with bundles 4 of rayon fibers directed outward from inside the bags as a means for introducing moisture. When this suit was immersed in water, water gradually penetrated into the polyester film bag 3 through the rayon fibers 4 and the quicklime 2 generated heat. In this case, the surface temperature is 50 to 60 degrees Celsius in an environment with an outside temperature of -5 degrees Celsius and a wind speed of 5 m/s, and the generated infrared rays are detected by CC.
We were able to explore using D.

[Effects of the Invention] Since the infrared exploration clothing of the present invention is constructed as described above, it can be used in a disaster situation such as a sea area or a mountainous area, regardless of whether it is a cold season or at night, or even under bad weather. person can be easily detected.

[Brief explanation of the drawing]

FIG. 1 is a partial cross-sectional view of an embodiment of the invention. 1...Survival suit 2...quicklime 3...Polyester film bag 4...Rayon fiber bundle Figure 1

Claims (3)

[Claims] (1) Clothing for infrared exploration, characterized in that a heating element capable of generating heat to a temperature of 20° C. or higher is disposed in all or part of the garment. (2) The clothing for infrared exploration according to claim (1), wherein the clothing is a lifesaving clothing having cold resistance and water resistance. (3) Claim (1) in which the heating element is made of a material that generates heat when it comes into contact with moisture, and is arranged on the outermost surface of the garment.
Or the infrared exploration clothing described in (2).