JP2010133772A - Protective clothing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To supply protective clothing which can maintain wearer's safety and has good workability on a site pertaining to nuclear power, chemicals and bacteria and to provide protective clothing which can also shield wearers from thermal neutrons. <P>SOLUTION: The protective clothing 1 has a hood 11 and includes hooded coveralls 10 which cover the almost whole body from a wearer's head to arms and legs so as to seal it, protective gloves 20 to protect his or her hands, protective shoes 30 to protect his or her feet and a body temperature maintaining vest 40 which is worn under the hooded coveralls 10 to maintain his or her body temperature. As to the hooded coveralls 10, liquid and dust repellent surface finishing is given to a material with the resistance to heat, chemicals and the like. The body temperature maintaining vest 40 uses a material containing a phase transition material where phase transition occurs at a prescribed temperature to maintain the wearer's body temperature. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to protective clothing worn in the field in the event of an accident or incident involving nuclear power, chemicals, or bacteria, and more particularly to protective clothing worn in the event of an accident related to nuclear power.

  Nuclear accidents include fires and criticality accidents at nuclear power plants and facilities that handle radioactive materials. In addition, accidents related to chemical substances include leakage of toxic chemical substances due to fires at chemical factories and overturning accidents of tank trucks during transportation. Examples of incidents where toxic chemicals were used include the Matsumoto Sarin Incident and the Subway Sarin Incident. As for bacteria, there may be a leakage accident from a laboratory that handles bacteria. Furthermore, there are no terrorist incidents involving radioactive substances, toxic chemicals, and bacteria.

  In any of these cases, the protective clothing worn by the worker who works at the site is required to have good workability as well as ensuring the safety of the worker himself / herself in the site environment. In order to improve workability, it is necessary to be light and not bulky. Also, in terms of both worker safety and workability, the tensile and tear strength is high, and it is not only a coverall-type protective clothing, but also because the body temperature rises in the protective clothing shielded from the external environment. It is also necessary to take measures against heat stress.

  For example, as radiation protective clothing worn in the event of a nuclear accident, there is one described in Patent Document 1.

  That is, the outer clothing of the protective clothing, part or all of which is made of moisture-permeable material, the inner hood that is worn under the outer clothing and covers the upper part from the neck, and the inner hood A headband formed so as to cover the wearer's head, with an air supply hole, a portable electric blower with filter and an air supply hose that is attached to outer clothes and supplies air to the headband; With moisture-permeable material outer clothes, moisture in the outer clothes is discharged to the external environment relatively quickly, and the air blown into the inner hood removes heat and sweat from the wearer, resulting in heat stress. It corresponds.

JP-A-10-197688

  However, in such a conventional technique, radioactive aerosols enter the outer clothes by completely sealing the outer clothes and increasing the internal pressure in the outer clothes from the external environment by supplying air into the outer clothes. Although it is possible to prevent internal exposure by preventing this, there is a problem that it does not provide any protection against external exposure by neutron radiation.

  In addition, when the outer clothes with the radioactive aerosol attached are worn for a long time, there is a problem that the external radiation is caused by the radiation emitted by the radioactive aerosol. In addition, when such protective clothing is used in an accident site where toxic chemicals or bacteria are leaking, it cannot be used because toxic chemicals or bacteria may adhere to the outer clothing. There was a problem.

  The present invention has been made paying attention to such problems of the conventional technology, and protects the wearer at the site of accidents and incidents related to nuclear power, chemicals and bacteria, and has good workability. The purpose is to provide clothing, and further to provide protective clothing that can shield thermal neutrons at the site of accidents involving nuclear power.

The gist of the present invention for achieving the object lies in the inventions of the following items.
[1] Protective clothing (1) to be worn when working in an environment where toxic chemicals, radioactive substances, and radiation exist.
A hooded coverall (10) having a hood (11) and covering almost the whole body from the wearer's head to arms and legs, a protective glove (20) for protecting the wearer's hand, and wearing A protective shoe (30) for protecting a person's feet, and a body temperature maintenance vest (40) for wearing under the hooded coverall (10) to maintain the body temperature of the wearer,
The hooded coverall (10), protective gloves (20) and protective shoes (30) are each made of a material having at least heat resistance, fire spread resistance, heat conductive resistance, radiant heat resistance, tensile tear strength, and chemical resistance. , Liquid and dust repellent surface treatment to prevent chemicals and radioactive materials from sticking to the surface,
The body temperature maintenance vest (40) is made of a material including a phase change material that changes the phase at a predetermined temperature to maintain the body temperature of the wearer (1).

[2] A thermal neutron shielding vest (50) for shielding thermal neutrons, which is worn between the hooded coverall (10) and the body temperature maintenance vest (40),
And a thermal neutron shielding headgear (60) that shields thermal neutrons and is worn from above the hood (11) of the hooded coverall (10) so as to cover the head of the wearer. 1] Protective clothing (1).

[3] An adsorbent material that adsorbs toxic chemicals and bacteria, an adsorbent inner (71) worn between the hooded coverall (10) and the body temperature maintaining vest (40), and the adsorbent material. An adsorbent head cover (72) worn so as to cover the head inside the hood (11), and an adsorbent foot cover (73) made of the adsorbent material and worn under the protective shoes (30) The protective clothing (1) according to [1] or [2], characterized by comprising:

The present invention operates as follows.
Work in an environment such as an accident site where radioactive aerosol or radiation is present in an accident site where a toxic chemical substance is leaked due to an accident at a chemical factory or an accident involving a tank truck being transported, or an accident at a nuclear facility. Wear protective clothing (1).

  When wearing the protective clothing (1), first, the body temperature maintenance vest (40) is first worn on normal clothing, and then the hooded coverall (10) is worn and the hood (11) is covered. At this time, if necessary, a mask or a helmet is appropriately worn so that the whole body is sealed. Next, protective gloves (20) and protective shoes (30) are worn.

  As a result, in a field environment where toxic chemical substances are leaking, solution-type chemical substances and solid chemical substances are covered with hooded coveralls (10), protective gloves (20) and protective gloves with a liquid-repellent and dust-repellent surface treatment. It does not adhere to the shoes (30) and can be prevented from entering the protective clothing (1). In addition, even in the field environment where radioactive aerosol is present, the hooded coverall (10) with the liquid-repellent and dust-repellent surface processed does not adhere to the hood and prevents the radioactive aerosol from entering the protective clothing (1). Can be prevented.

  The hooded coverall (10), protective gloves (20) and protective shoes (30) have at least heat resistance, fire spread resistance, heat resistance, radiation heat resistance, tensile tear strength, and chemical resistance. Therefore, even when the site is accompanied by a fire, the wearer wearing the protective clothing (1) is protected from the flame. In addition, the body temperature maintenance vest (40) worn under the hooded coverall (10) is made of a material including a phase change material that changes from a solid to a liquid at a predetermined temperature. It is possible to prevent the body temperature from rising and maintain the body temperature, thereby ensuring the safety of the wearer during work and improving workability. The predetermined temperature is a temperature lower than the average body temperature of the human body in a normal living environment, and is about 28 ° C., for example.

  Furthermore, in a field environment where thermal neutron radiation is generated, when wearing protective clothing (1), a thermal neutron shielding vest (50) is worn on top of the body temperature maintenance vest (40). Wear a hooded coverall (10). Further, the thermal neutron shielding headgear (60) is worn from above the hood (11) of the hooded coverall (10) so as to cover the head of the wearer. In this case, in order to protect the eyeball from radiation, an eyeball protector (200) made of special glass that shields radiation may be attached to the inside of the mask (90).

  In addition, when the field environment requires a higher level of protection against toxic chemicals, for example when highly toxic chemicals are present or when a higher level of protection is required against bacteria. Wears the absorbent inner (71) on the body temperature maintaining vest (40), and attaches the absorbent head cover (72) to cover the head inside the hood (11) of the hooded coverall (10). What is necessary is just to wear | wear and to wear an absorptive foot cover (73) under protective shoes (30).

  As a result, even if the contaminated atmosphere in the field containing toxic chemicals and bacteria enters the coverall (10) with the hood of the protective clothing (1), the adsorbent inner (71), the adsorbent head cover (72), Since they are adsorbed and made harmless by the adsorbent foot cover (73), the safety of the wearer is maintained.

  According to the protective clothing according to the present invention, hooded coveralls, protective gloves, and protective shoes prevent invasion of toxic chemicals and radioactive aerosols and prevent adhesion to the protective clothing, and body temperature maintenance vests suppress increase in body temperature. Therefore, the wearer's safety can be maintained and good workability can be provided.

  Furthermore, by wearing the thermal neutron shielding vest and the thermal neutron shielding headgear together and using the thermal neutron shielding eyeball protector, the wearer can be protected from exposure to thermal neutron rays.

  In addition, by wearing an adsorbent inner, an adsorbent head cover, and an adsorbent foot cover in combination, even if an atmosphere contaminated with toxic chemicals or bacteria enters the hooded coverall, Since the adsorbed substances and the bacteria are harmless to the wearer, the safety of the wearer can be maintained even in an environment where a high level of protection against toxic chemicals and bacteria is required.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.
Each figure shows an embodiment of the present invention. Drawing 1 is an explanatory view explaining the state where all the protective clothing concerning a 1 embodiment of the present invention was worn. FIG. 2 is a front view showing the hooded coverall in FIG. 1. FIG. 3 is a rear view of the hooded coverall of FIG. 2 as viewed from the back. In addition, the right half of FIG. 1 has shown what is worn under the coverall with a hood.

  As shown in FIG. 1, the protective garment 1 is worn under a hooded coverall 10 having a hood 11, a thermal neutron shielding vest 50 to be worn under the hood 11, an adsorbent inner 71 to be worn below, and an adsorbent inner 71. Body temperature maintenance vest 40, adsorbent head cover 72 worn so as to cover the head inside the hood 11, adsorbent foot cover 73 worn on the foot, protective shoes 30 worn on the adsorbent foot cover 73, protective gloves 20, The thermal neutron shielding headgear 60 worn from above the hood 11 of the hooded coverall 10 can be worn in an appropriate combination. When wearing the protective clothing 1 at the site, a helmet 80 as shown in FIGS. 6 and 9, a mask 90 as shown in FIG. 10, and a respiratory protection device as shown in FIG. 100, eye protection 200, etc. are worn.

  The coverall 10 with a hood shown in FIGS. 1 and 2 is a connection type having a hood 11. This hooded coverall 10 and protective gloves 20 and protective shoes 30 are high in strength, excellent in liquid repellency, fire spread resistance, heat resistance, radiation heat resistance, tensile tear strength, chemical resistance, etc., and exhibit high functionality. As a heat-resistant fiber, a meta-aramid fiber of polyamide / imide fiber (Kelmel material) manufactured by Kelmer is used.

  The hooded coverall 10 can be opened and closed by an opening / closing part 12 on the front side of the trunk, and can be opened when the hooded coverall 10 is worn and taken off, and can be closed so that it can be sealed while wearing. . Moreover, rubber is contained in the front surface of the hood 11 of the hooded coverall 10 around the portion where the face is exposed when worn, so that the exposed area of the face is reduced.

  Thus, the hooded coverall 10 can prevent a contaminated atmosphere contaminated with radioactive aerosol or toxic chemicals from entering the protective clothing 1 when appropriately worn with the helmet 80 and the mask 90. Moreover, the coverall 10 with a hood, the protective gloves 20, and the protective shoes 30 are subjected to aluminum vapor deposition, and the heat reflection performance is enhanced. Furthermore, since Teflon processing ("Teflon" is a registered trademark of DuPont) is applied from above, excellent liquid repellency and dust repellency can be exhibited.

  FIG. 4 is a front view showing the thermal neutron cutoff vest in FIG. 1, and FIG. 5 is a rear view of the thermal neutron cutoff vest in FIG. The thermal neutron shielding vest 50 shown in FIGS. 4 and 5 is intended to shield the wearer's torso from exposure to thermal neutrons by blocking thermal neutrons in the radiation.

  The thermal neutron shielding vest 50 is to be worn under the hooded coverall 10 and is to be worn on the body temperature maintaining vest 40 described later, and the adsorbing inner 71 described later is worn on the body temperature maintaining vest 40. If it is, it is worn on the adsorbent inner 71.

  The thermal neutron shielding vest 50 uses a material obtained by adding boron carbide to silicon rubber as a shielding material for shielding thermal neutron rays. That is, inside the cover of the illustrated thermal neutron shielding vest 50, a thermal neutron radiation shielding plate (not shown) made of silicon rubber to which boron carbide is added almost entirely is contained.

  The thermal neutron shielding vest 50 protects the front protection part 51 that protects from the neck to the lower part of the crotch and from the front side to the side of the trunk, and the back protection that protects from the neck to the lower part of the crotch part and from the back side of the trunk to the side. Part 52. The front protection part 51 and the back protection part 52 have a portion on one shoulder that can be opened and closed by a hook-and-loop fastener 53, and the hooks and loop fasteners 54 and 55 that connect around the side of the body and the lower part of the crotch. A hook-and-loop fastener 56 to be connected and a hook-and-loop fastener 57 for adjusting the circumference of the neck are provided. These hook-and-loop fasteners 53 to 57 can be worn effectively and comfortably regardless of the wearer's physique. The hook-and-loop fasteners 53 to 57 may be male hook-and-loop fasteners, and the cover of the thermal neutron shielding vest 50 may be treated to have the same function as the hook-and-loop fastener female, or a female hook-and-loop fastener may be provided on the cover. Good.

1 and 6 to 8 show a thermal neutron shielding headgear 60 for protecting a wearer's head from thermal neutron rays.
The thermal neutron shielding headgear 60 is attached to the inside of the helmet 80 as shown in FIGS. 1, 6, and 7, and the thermal neutron protection scoro 61 that covers from the back of the wearer to the face side, FIG. 1 and FIG. 8, the thermal neutron protection head cover 62 is attached to the outside of the helmet 80 and covers the entire helmet 80. In these cases, silicon rubber to which boron carbide is added is used as a thermal neutron shielding material in the same manner as the thermal neutron shielding vest 50.

  As shown in FIG. 7, the thermal neutron protection scoro 61 is formed in a curved band shape. The thermal neutron protection scoro 61 is made by sandwiching a thermal neutron shielding plate 61c made of silicon rubber to which boron carbide is added between a front surface side covering material 61a and a back surface side covering material 61b. Of at least the front surface side covering material 61a and the back surface side covering material 61b, at least the front surface side covering material 61a is made of the same material as the hooded coverall 10 and is subjected to the same surface treatment.

  The thermal neutron shielding headgear 60 is provided with a stopper 66 for attaching to the helmet 80. The stopper 66 is detachable from a button (not shown) provided on the helmet 80 side, for example, as a button. Further, the stopper 66 may be a male or female hook-and-loop fastener, and a female or male hook-and-loop fastener may be provided on the helmet 80 side to make it detachable. Furthermore, you may fix to the helmet 80 with a screw.

  The thermal neutron shielding headgear 60 is long enough to be overlapped when attached to the helmet 80 and the wearer wears the helmet 80 and puts both ends of the thermal neutron shielding headgear 60 together. A male hook-and-loop fastener is attached to one end of the thermal neutron shielding headgear 60, and a female hook-and-loop fastener is attached to the other end. Thereby, the thermal neutron shielding headgear 60 can be maintained in a state in which both ends are combined. This state can cover everything except the peripheral part of the eye from the wearer's neck to the face, like a shark's face.

  The thermal neutron protection head cover 62 shown in FIG. 8 is formed so that it can be put on the outside of the helmet 80. The thermal neutron protection head cover 62 is of a size that can cover the entire helmet 80, and rubber is passed through the hem thereof. When the thermal neutron protective head cover 62 is worn on the helmet 80, the hem of the thermal neutron protective head cover 62 placed on the helmet 80 is lowered to the bottom of the helmet 81 and then released, so that the hem is squeezed with rubber and the hem is reduced to the helmet 80. It is attached to the hook 81 of the.

  FIG. 9 shows a helmet 80 to which the thermal neutron protection head cover 62 is attached. The helmet 80 has a ridge 81. The headband 82 can be attached to the helmet 80 so as to go around the portion above the collar 81. The headband 82 has a silicon rubber plate with boron carbide added therein, and can block thermal neutron rays. The headband 82 is attached to the helmet 80 by a hook-and-loop fastener 83 attached to the side surface of the headband 82 and a hook-and-loop fastener 84 attached to the outside of the helmet 80. Surface fasteners 84 and 85 are also attached to both ends of the headband 82, and both ends can be connected.

  In the thermal neutron shielding headgear 60, the thermal neutron protection core 61 and the thermal neutron protection head cover 62 are shown as separate bodies, but they may be integrally formed. For example, it may be worn so as to cover the helmet 80 worn on the hood 11 of the hooded coverall 10 so as to cover the wearer's head.

  The thermal neutron shielding vest 50 and the thermal neutron shielding headgear 60 used silicon rubber to which boron carbide was added in order to block thermal neutron rays, but silicon rubber or flame retardant metallic water to which gadolinium oxide powder was added. Silicon rubber or the like to which an oxide and boron carbide are added may be used.

  The absorptive inner 71, the absorptive head cover 72, and the absorptive foot cover 73 shown in FIG. 1 are made of the same absorptive material that can adsorb toxic chemical substances and bacteria. As the material, a spherical activated carbon filter using spherical activated carbon is sandwiched between the base fabric and the outer layer fabric. This spherical activated carbon filter can adsorb toxic chemicals and radioactive aerosols. This spherical activated carbon filter can adsorb toxic chemical substances such as sarin, butane, soman, VX, etc., but even if it touches the spherical activated carbon filter adsorbing these toxic chemical substances by hand, they are directly in hand. There is no touch. Therefore, the same effect as that these toxic chemical substances are substantially rendered harmless is exhibited.

  The base fabric and outer layer fabric sandwiching the spherical activated carbon filter are preferably knitted materials from the standpoint of maintaining the adsorptivity of the spherical activated carbon filter and the feel when worn. However, the base fabric and the outer layer fabric are not limited to the knit material, and may be any material having good air permeability.

  The absorptive inner 71 is preferably a long-sleeved long pants coverall type. The adsorbent head cover 72 is preferably one that covers from the head and reaches the collar of the adsorbent inner 71. The adsorbent head cover 72 is opened so as to be exposed from the eyes to the mouth in order to secure a space when the mask is worn, and rubber is passed through the periphery of the opened portion. Thereby, when the mask 90 is worn, the opened portion is squeezed by the rubber, and the mask 90 and the adsorbent head cover 72 are brought into close contact with each other. The adsorptive foot cover 73 worn on the foot is cut high so as to reach a position sufficiently higher than the hem of the adsorptive inner 71 when worn.

  The body temperature maintaining vest 40 shown by a broken line in FIG. 1 is made of a material including a phase change material that absorbs heat and changes phase from a solid to a liquid when a predetermined temperature is exceeded. Thereby, body temperature can be maintained by absorbing heat even under conditions where the body temperature of the wearer rises. The predetermined temperature is a temperature lower than the average body temperature of the human body in a normal living environment, and is about 28 ° C., for example.

  What is shown in FIG. 10 is a mask 90 to be worn if necessary depending on the state of the field environment when the protective clothing 1 is worn. Moreover, what was shown in FIG. 11 is the respirator 100 used with the mask 90 if necessary depending on the state of the field environment when wearing the protective clothing 1, and is provided with a high-pressure air cylinder 101. .

  In the field environment exposed to thermal neutrons, an eye protection device 200 made of borosilicate glass that shields thermal neutrons is provided in the mask 90 as shown in FIG.

Next, the operation will be described.
The protective garment according to the present embodiment is appropriately used when working at a site where chemical substances are leaking, a site where radioactive aerosol is present or exposed to radiation, a site where bacteria are leaking, etc. It is possible to maintain the workability while ensuring the safety of the wearer.

  As a first example, it is a case of an accident site where a toxic chemical substance is leaked due to an accident at a chemical factory or a rollover of a tank lorry in transit, an accident at a nuclear facility, etc., and it is exposed to radioactive aerosol or radiation When working in an environment such as an accident site, the body temperature maintaining vest 40, the hooded coverall 10, the protective gloves 20, and the protective shoes 30 are worn together with the mask 90 shown in FIG. . Further, depending on the field environment, the mask 90 and the respiratory protection device 100 shown in FIG. 11 are used in combination.

  When the protective clothing 1 is worn, the body temperature maintenance vest 40 can be worn on normal clothing. Next, the opening / closing part 12 of the hooded coverall 10 is opened, arms and legs are put on the hooded coverall 10 and worn, and then the opening / closing part 12 is closed. Next, the protective shoes 30 are worn, and the hood 11 is put on after wearing the mask 90. At this time, in the hood 11, the rubber passing around the portion where the face is exposed shrinks to narrow the exposed portion, and the space between the hood 11 and the mask 90 is sealed. Finally, the protective gloves 20 are worn.

  Protective clothing 1 worn in such a combination is a hooded coverall with a liquid-repellent and dust-repellent surface processed by Teflon processing in the field environment where toxic chemicals are leaking. 10, does not adhere to the protective gloves 20 and the protective shoes 30, and is prevented from entering the sealed protective clothing 1. Further, even in the field environment where the radioactive aerosol exists, the radioactive aerosol does not adhere to the coverall 10 with the hood having the liquid and dust repellent surface processed in the same manner, and the penetration of the radioactive aerosol into the protective clothing 1 can be prevented. .

  The hooded coverall 10, the protective gloves 20, and the protective shoes 30 are each formed by depositing aluminum on a material having heat resistance, fire spread resistance, heat conductive resistance, radiant heat resistance, tensile tear strength, and chemical resistance. Therefore, it also has higher radiant heat performance. Thereby, even when the site is accompanied by a fire, the wearer who is working can be protected from flame and heat. In addition, when the site is accompanied by a fire or when there is no fire, the body temperature maintenance vest 40 worn under the hooded coverall 10 is used for the body temperature of the wearer and the hooded coverall 10. Since the internal heat is absorbed, an increase in the body temperature of the wearer can be prevented. Thereby, the safety of the wearer during work can be secured and workability can be improved.

  Next, as a second example, in the case of a field environment where thermal neutron rays are generated, in addition to wearing the protective clothing 1, the thermal neutron shielding vest 50 is placed on the body temperature maintaining vest 40. To wear. The thermal neutron shielding vest 50 is worn on the body temperature maintenance vest 40. Moreover, the helmet 80 which attached the thermal neutron shielding headgear 60 from the top of the hood 11 of the hooded coverall 10 so as to cover the wearer's head is worn. That is, the helmet 80 to which the thermal neutron protection roller 61 and the thermal neutron protection head cover 62 are attached is worn. At this time, in order to protect the eyeball from thermal neutrons, an eyeball protector 200 made of special glass such as borosilicate glass that blocks the thermal neutrons is mounted in the mask 90. Thereby, the wearer of the protective clothing 1 can avoid the exposure by a thermal neutron.

  As a third example, when a higher level of protection is required, such as the presence of highly toxic chemicals in the field environment, or when a higher level of protection is required against bacteria. In the case of coping, the protective clothing 1 of the combination worn in the first example is further worn with an adsorbent inner 71 on the body temperature maintenance vest 40 and an adsorbent head cover 72 to cover the head, What is necessary is just to wear the coverall 10 with a hood, and to wear the protective gloves 20 and the protective shoes 30, after wearing the adsorbent leg cover 73.

  As a result, even if air in the field environment containing toxic chemicals and bacteria enters the hooded coverall 10 of the protective garment 1, the toxic chemistry is caused by the adsorbent inner 71, the adsorbent head cover 72, and the adsorbent foot cover 73. Because it adsorbs substances and bacteria, the safety of the wearer is maintained.

  It goes without saying that depending on the situation at the site, the helmet 80 with the thermal neutron shielding vest 50 and the thermal neutron shielding headgear 60 worn in the case of the second example may be worn.

  In the above description, the coverall 10 with the hood is integrated with the hood 11. However, as shown in FIG. 12, the coverall 10 is made of the same material as the coverall 10 with the hood and is not integrated with the hood 11. It may be 110.

It is explanatory drawing explaining the state which wore all the protective clothing which concerns on one embodiment of this invention. It is a front view which shows the coverall with a hood in FIG. It is the rear view which looked at the coverall with a hood of FIG. 2 from the back. It is a front view which shows the thermal neutron interruption | blocking vest in FIG. It is the rear view which looked at the thermal-neutron interruption | blocking vest of FIG. 4 from the back surface. It is a figure which shows the helmet which attached the thermal neutron protection heart of the thermal neutron shielding headgear, (A) is a front view, (B) is a side view. It is a figure which shows the thermal neutron protection wing of FIG. 6, (A) is a top view which shows the surface, (B) is a bottom view which shows a back surface, (C) is a figure which shows an inside. It is a figure which shows the thermal neutron protection head cover with which a helmet is mounted | worn in FIG. 1, (A) is a front view, (B) is a side view. It is a figure which shows the headband attached to a helmet and a helmet, (A) shows the front view of the helmet which attached the headband, (B) shows the side view of the helmet which attached the headband, (C) Fig. 4 shows a front view of a helmet with the headband removed, (D) shows a side view of the helmet with the headband removed, and (E) shows both sides of the headband. It is a perspective view which shows the mask used in combination with the protective clothing of FIG. 1 by use condition. It is a perspective view which shows the mask used in combination with the protective clothing of FIG. 1 by use condition. It is a figure which illustrates the front side and back side of the coverall which is not integral with a hood.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Protective clothing 10 ... Coverall with hood 11 ... Hood 12 ... Opening and closing part 20 ... Protective gloves 30 ... Protective shoes 40 ... Body temperature maintenance vest 50 ... Thermal neutron shielding vest 51 ... Front protection part 52 ... Back protection part 53, 54, 55 , 56, 57... Surface fastener 60. Thermal neutron shielding head gear 61. Inner inner 72 ... adsorbent head cover 73 ... adsorbent foot cover 80 ... helmet 81 ... 鍔 82 ... headband 83,84,85 ... hook fastener 90 ... mask 100 ... respiratory protection 101 ... high pressure air cylinder 110 ... coverall 200 ... eyeball Protective equipment

Claims (3)

Protective clothing to be worn when working in an environment where toxic chemicals, radioactive substances or radiation is present,
A hooded coverall that has a hood and covers almost the entire body from the wearer's head to arms and legs, protective gloves that protect the wearer's hands, and protective shoes that protect the wearer's feet , Comprising a body temperature maintenance vest that is worn under the hooded coverall and maintains the body temperature of the wearer,
Each of the hooded coveralls, protective gloves and protective shoes has a liquid-repellent and dust-repellent surface treatment applied to a material having at least heat resistance, flame spread resistance, heat resistance, radiant heat resistance, tensile tear strength, and chemical resistance. To prevent chemicals and radioactive materials from adhering to the surface,
The body temperature maintenance vest uses a material including a phase change material that changes phase at a predetermined temperature to maintain the body temperature of the wearer. A thermal neutron shielding vest that shields thermal neutrons, worn between the hooded coverall and the body temperature maintenance vest,
The protective garment according to claim 1, further comprising: a thermal neutron shielding headgear that shields thermal neutrons and is worn from above the hood of the hooded coverall so as to cover the head of the wearer.   It consists of an adsorbent material that adsorbs toxic chemicals and bacteria, and consists of an adsorbent inner worn between the hooded coverall and the body temperature maintaining vest, and the adsorbent material so that the head is covered inside the hood. The protective clothing according to claim 1, further comprising: an adsorptive head cover to be worn; and an adsorptive foot cover made of the adsorptive material and worn under the protective shoes.

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