JP4024391B2 - Heat-resistant protective clothing - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to improvement of heat-resistant protective clothing worn by fire fighters engaged in fire fighting activities, workers engaged in pre-furnace work, and the like during work.
[0002]
[Prior art]
Conventionally, heat-resistant protective clothing that is generally used for use has been developed and designed to protect the wearer's body with an emphasis on the reflective or waterproof function against heat, flame, etc. from the outside. The heat insulation performance of the internal structure of the clothes is not so good, and the wearer is currently suffering from heat stroke during work, or is forced to retreat from the site just before the heat stroke occurs.
In recent years, gas fires and liquid fires have increased, and the risk of encountering explosions, very high levels of radiant heat, convection heat, and contact heat has increased. Therefore, high heat resistance, fire resistance, heat insulation, and the like have been required for heat-resistant protective clothing.
In order to meet the above requirements, recent heat-resistant protective clothing is composed of heat-resistant and fire-resistant outer garments and waterproof and heat-insulating inner garments, or those that integrate these components. In particular, those with improved insulation performance have been developed.
[0003]
However, the protection against external heat has increased, and conversely, when the person wearing the protective clothing works, it becomes difficult to release the heat generated in the wearer's body to the outside of the protective clothing. It has been. And if excessive heat storage occurs in the human body, due to the heat stress, the body temperature, which is normally maintained constant, will rise rapidly, causing heat stroke such as consciousness becoming trapped during work In extreme cases, it can be fatal and has serious problems.
[0004]
In order to solve the above-mentioned problems, various studies have been conducted, such as using a coolant in clothes, installing a forced ventilation device, and improving moisture permeability. However, it has not yet reached a configuration that satisfies all the problems such as insufficient performance, and in particular, how to eliminate the heat storage inside the heat-resistant protective clothing has not yet been solved.
[0005]
[Problems to be solved by the invention]
According to the present invention, high-temperature, high-humidity air stored between the outer garment and the garment's garment is heated by heating the outer garment surface of the heat-resistant protective garment or by the increase in the body temperature of the garment. A heat dissipating means having a function of releasing from the inside of the heat-resistant protective clothing to the outside is disposed on the back side of the protective clothing, thereby releasing the high-temperature and high-humidity air in the protective clothing to the atmosphere, The purpose is to provide heat-resistant protective clothing that prevents deterioration of work ability due to thermal fatigue, prevents accidents due to thermal fatigue, etc., has excellent heat resistance and fire resistance, and can maintain the temperature and humidity in the clothes low. And
[0006]
Further, the present invention is configured such that the heat radiation means can be dressed such as a vest, and is configured separately from the heat-resistant protective clothing, and by being layered on the inside of the protective clothing, the heat-resistant protective clothing and the wearer The purpose is to provide heat-resistant protective clothing that releases high-temperature, high-humidity air that generates and stores heat to the outside of the clothing.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 incorporates a high-functional cushion material having a spring structure of a continuous linear random loop formed of a rubber elastic material into at least a part of the back side of the outer garment of the garment or garment system having a heat protection function. The heat dissipating means composed of a reticular elastic body is provided.
The invention of claim 2 is the heat protective garment according to claim 1, the compression direction of the thickness of the heat dissipating means, is obtained by being a thickness of 2 to 100 mm.
According to a third aspect of the present invention, there is provided a heat-resistant protective garment comprising an outer garment and a trouser, wherein the outer garment and the inner garment are attached to the outer garment detachably or by sewing. Is provided with a heat dissipating means composed of a net-like elastic body incorporating a high-performance cushion material having a spring structure of a continuous linear random loop formed of a rubber elastic material .
[0008]
In the present invention, heat-resistant protective clothing refers to at least general fire-fighting clothing, special heat-resistant clothing, or furnace front clothing, and all include upper garments and trousers.
[0009]
The heat-resistant protective function of the present invention means at least heat resistance, fire resistance, and heat insulation. In order to impart heat resistance and fire resistance to the heat-resistant protective clothing, there is a method of using a knitted fabric using fibers such as polybenzoxazole (PBO), glass, aramid, polyimide and the like. According to the said method, it becomes possible to provide high heat resistance, fire resistance, and heat insulation by the radiant heat reflection effect because the surface is aluminized. Moreover, in order to provide heat insulation, the method of using the laminated nonwoven fabric etc. which consist of aramid, a polyimide fiber, etc. is mentioned. There is also a method of using an aramid flame retardant fiber whose outer garment surface is not aluminized.
[0010]
The clothing of the present invention refers to the state of a single piece of clothing such as an upper garment, a lower garment, a cover, etc., and the clothing system refers to the total worn clothing in a state where the outer garment and the inner garment are layered. A method for realizing all of the performance of the present invention with a single sheet or a method for realizing the performance of the present invention by layering a plurality of clothes shall be included.
[0011]
The heat dissipating means of the present invention is configured to dissipate the heat storage air in the garment and between the garment and the garment, in other words, from the garment's garment neck, cuffs, waist, hem and other clothing openings. It is a general term for a configuration including the feature that the heat radiation effect (pump effect) by ventilation that releases air at the same time as air is dissipated to the outside becomes more prominent.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Although the embodiment concerning the heat-resistant protective clothing of this invention is shown, it should be understood that the heat-resistant protective clothing of the present invention is not limited to the following embodiments.
Further, as is apparent from the materials used, the garment or the garment system is provided with a basic heat protection function.
[0013]
Hereinafter, the heat-resistant protective clothing which concerns on one Embodiment of this invention is demonstrated with reference to FIGS.
In the figure, 10 is a fire fighting suit, and the fire fighting suit 10 is composed of an outer garment 11 and an inner garment 30. The outer garment 11 includes a left and right front body 12, a rear body 13, a left and right shoulder cloth 14,衿 15, left and right sleeves 16, front sleeve portion 17 of left and right sleeves 16, upper and lower rear sleeve portions 18 and 19, left and right cuff fabric 20, and left and right gusset portions 21, left and right A main body 28 is formed by a turn 22, a back turn 23, a front application cloth 24, and the like, and a pocket 25, these flaps 25 a, a belt return loop 26, a barb 27, and a reflection sheet 29, an outer fabric composed of aluminized polybenzoxazole (PBO) fibers, an intermediate fabric obtained by processing a fluoroporous film into a fabric composed of aramid fibers, and an aramid fiber blend Non-woven fabric and aramid And lining was quilting fabric consisting Wei is being used.
[0014]
As shown in FIG. 3, the inner garment 30 that is stacked on the inner side of the outer garment 11 sews the left and right front bodies 31 and the rear body 32 to form a main body portion 33. An armhole 34 is formed on both right sides, and a base end portion of the left and right sleeves 35 is connected to a peripheral portion of these armholes 34 via a left and right gusset portion 36 in most of the circumferential direction. .
[0015]
The left and right sleeves 35 are formed in a cylindrical shape by sewing upper and lower rear sleeves 37 and 38 to a long front sleeve portion 35a and connecting opposite edges of the upper and lower rear sleeve portions 37 and 38. A tack 38a is formed at the longitudinal intermediate portion of the elbow-side sewn portion of the lower rear sleeve portion 38, and an elbow front bending margin portion 39 is provided on the left and right sleeves 35.
[0016]
The left and right gusset portions 36 have a front end located at the upper end portion of the front body 31, a rear end located near the upper end of the rear body 32, and the gusset portion 36 having a half or more along the circumferential direction of the proximal end portion of the sleeve 35. The front body 31 which is biased to the rear side via the neck and is sewn on the upper part of the back body 32 and the upper part of the back body 32, and the remaining part along the circumferential direction of the base end portion of the sleeve 35 forms the armhole 34 31 and the upper end of the back body 32 are directly sewn, and front and rear and upper bending margins 39 from the shoulders of the arms are formed at the connecting portions of the main body 33 and the left and right sleeves 35, respectively.
[0017]
40 is a heat radiating means formed on the back side of the back body 32 of the inner garment 30, and the heat radiating means 40 is a back side of the back body 32 of the inner garment 30 as shown in a partially enlarged sectional view in FIG. 4. A high-performance cushioning material having a bulk density of 0.045 g / cm3 and a thickness of 20 mm, which is formed by forming a continuous linear random loop spring structure on the surface of the quilting cloth 32a, The neck portion, shoulder portion, left and right chest portions, and a portion corresponding to the central portion of the back are arranged in a substantially bowl shape, and is configured by a net-like elastic body 41 in which the surface 42 of the cushion material is covered with a net body 43 subjected to a flame retardant treatment, The end portion 43a of the net body 43 is fixed to the quilting cloth 32a, which is the back side cloth of the back body 32, by means such as sewing.
[0018]
The structure of the reticular elastic body 41 is a reticular structure having no closed cells, and may be a random structure or a regular structure such as a honeycomb structure, and stress concentration on a part of the body. In order to provide a natural comfort without causing the occurrence of the problem, it is important to use a relatively large area. From this point, a mesh cushion structure having an air layer flowing in the elastic body 41 itself is desirable. Further, in the structure of the net-like elastic body 41, it is more desirable to take a random structure because air easily flows.
[0019]
The net-like elastic body 41 has a spring structure in which continuous fibers of elastic resin are entangled with each other and the contact portions are fused to each other, and has a continuous linear random loop.
The elastic resin is made of polyester, nylon, urethane, polybenzoxazole, aramid elastomer or the like.
[0020]
Furthermore, it is desirable that the elastic resin is a polyester-based elastomer because the balance of handleability, heat resistance, and cushioning properties is balanced. When forming the net-like elastic body 41 of the present invention, the elastic body 41 has excellent air permeability when the bulk density of the elastic body 41 is 0.005 to 0.150 g / cm ³ , and 0.01 to 0.1. If it is 10 g / cm ^3, it is desirable to balance air permeability and cushioning. Furthermore, it is desirable that the balance be in the range of 0.02 to 0.08 g / cm ³ . Furthermore, the air permeability needs to be at least 200 cc / cm ² / sec. Preferably, if it is 300 cc / cm ² / sec or more, the heat radiation effect (pump effect) is remarkably exhibited.
[0021]
In the configuration of the net-like elastic body 41 which is the heat radiating means 40, the thickness in the compression direction is 2 to 100 mm. If the thickness is less than 2 mm, the effect of dissipating heat generated in the body by ventilation is small, and it is difficult to reduce the burden on the body. Also, if the thickness exceeds 100 mm, the wearer becomes difficult to move and hinders activities. In particular, if the thickness is in the range of 5 to 40 mm, the heat dissipation effect and the operability are balanced, which is desirable.
[0022]
Further, the arrangement position of the mesh elastic body 41 constituting the heat radiating means 40 is not particularly limited, and may be arranged anywhere such as the back, chest, shoulder, knee, thigh, and divided and arranged. Alternatively, it may be arranged as an integral part without being disassembled.
Desirably, when it is arranged as a single piece from the shoulder to the back, it is easy to move when being worn, and can feel a light weight. Furthermore, it is preferable that the back is very easy to move if the width is narrowed from the upper side to the lower side and it is arranged in a form that does not cover the armpits of both arms.
[0023]
As the cushion material of the mesh-like elastic body 41, an elastic resin having a spring structure of a continuous linear random loop is used, so that it has excellent compression recovery property, returns to its original state with an appropriate repulsive force, and hangs due to long-term use. On the other hand, it is durable and has a large gap due to its spring structure, and it has excellent air permeability and heat diffusibility, and since it has a large gap, it has good drainage and excellent washing and drying properties. Note that the net-like elastic body 41 can be made flame-retardant and antibacterial as required.
[0024]
In the present invention, the main body portion 33 of the inner garment 30 and the main body portion 28 of the outer garment 11 are stacked inside and outside, and the left and right sleeves 35 of the inner garment 30 are fitted into the left and right sleeves 16 of the outer garment 11, respectively. 30 is removable from the outer garment 11.
That is, the opposite side edge and the upper edge of the rear body 32 from the lower end of the left and right front body 31 of the inner garment 30, and the opposite side and upper side of the outer garment 11 from the lower end of the left and right front turn 22 of the outer garment 11. The main body portion 33 of the inner garment 30 is detachably attached to the main body portion 28 of the outer garment 11 by a series of attachment fasteners 30a and 30b.
[0025]
Further, as shown in FIG. 5, the base end portions of the left and right communicating cylinders 44 having air permeability are connected to the left and right sleeves 35 on the outer peripheral surface of the inner garment 30 near the hems, respectively. The left and right cuff cylinders 45 that are elastically expandable at the end of the cuffs protruding from the communicating cylinder 44 of the left and right sleeves 35, such as a jersey that protrudes toward the front end, are folded back and connected to the left and right, and the left The tip of the right communication tube 44 and the tubular cuff cloth 20 provided at the tip of the left and right sleeves 16 of the outer garment 11 are detachably connected by a cuff velvet fastener 46 over the entire circumferential direction. It is.
[0026]
The left and right front bodies 31 and the back body 32 constituting the inner garment 30, the front sleeve portion 35 a of the left and right sleeves 35, the upper and lower rear sleeves 37 and 38, and the left and right waist portions 36 are a front cloth, It is assumed that a core material such as a non-woven fabric or a net-like material is interposed between the lining cloths, and a cloth edge protection tape 47 is sewn in a U-shaped cross section at least on the peripheral part of the inner garment 30 except for the fastener mounting part. It is.
The main body portion and the left and right sleeves of the outer garment 11 and the main body portion and the sleeve portion of the inner garment 30 are substantially similar, and the inner garment 30 is slightly smaller than the outer garment 11.
[0027]
FIG. 6 shows a trouser 50 of fireproof clothing, and the trouser 50 is composed of an outer garment 51 and an inner garment 61 and includes main body parts 52 and 62 and left and right leg parts 53 and 63, respectively. 54 is a waist back support and 55 is a suspension belt.
[0028]
FIG. 7 shows an inner garment 61 of the trouser 50, and a main body 62 of the inner garment 61 is formed by sewing left and right front bodies 64 and left and right rear bodies 65 to form cylindrical left and right leg parts 63. The upper and lower body parts 66 are formed, a leg bending margin part 67 is formed on the rear side of the body part 66, and a front matching part 68 is formed on the front surface. The knee bending margin 69 is formed on the front side of the connecting portion.
[0029]
A number of upper stoppers 70 are fixed to the outer surface of the upper end portion of the main body 62 of the inner garment 61 at a required interval, and are detachably engaged with stoppers 59 provided on the inner surface of the main body 52 of the outer trouser 51. In addition, a plurality of lower stoppers 71 are also fixed to the outer surfaces of the lower end portions of the left and right leg portions 63 of the inner garment at a required interval, and can be attached to and detached from the stoppers 72 provided on the inner surfaces of the left and right leg portions of the outer garment of the trousers. By engaging, the pants inner garment 61 can be detachably fitted and held in the pants outer garment 51.
The left, right front body, left, right back body, and left and right legs of the main body part of the trousers 50 constituting the inner garment 61 are each composed of a front cloth and a back cloth, and the front cloth and the back cloth are flame-retardant. A treated woven fabric is used.
[0030]
Reference numeral 80 denotes a heat radiating means, which is positioned on the left and right thighs above the knee bending margin 69 of the left and right upper leg parts, and the upper waist part 73 and has a highly functional cushion material on the front side of the back fabric. A reticulated elastic body 82 similar to that described above, wherein the cushion material is covered with a flame-retardant net body 81 and attached.
[0031]
The above-described fire protection garment 10 according to an embodiment of the present invention includes a heat dissipation means 40 configured by incorporating high-functional cushion materials on the inner garment 30 of the outer garment 30 and the inner garment 61 of the trousers 50, respectively. , 80, each having a net-like elastic body, so that when a user wears a jacket and pants and performs fire extinguishing activities at the fire site, the outer garment and inner garment are heated by the heat of the fire. Although the inside of the fire protection garment 10 becomes high temperature, an air layer is formed between the inner garment 30 and the wearer's garment by forming a space between the garment of the wearer and the inner garment 30. In addition, high heat is not directly conducted into the wearer's body, the space can be prevented from rapidly becoming hot, the wearer's thermal fatigue can be reduced, and fire fighting activities can be facilitated.
[0032]
Furthermore, when the heat dissipating means 40 is provided on the back side of the inner garment 30, when it is necessary to carry a heavy fire extinguisher such as an oxygen cylinder during a fire extinguishing operation, the heat dissipating means 40 functions as a cushion and the wearer The high-temperature air held between the outer garment and the inner garment 30 of the fire protection garment 10 can be released to the outside air from the neck of the fire protection garment through the buttocks by the pump function accompanying the cushion action.
Further, since the outer garment of the outer garment and the left and right sleeves of the inner garment according to the present invention are connected via a communicating tube 44 having air permeability, the outer garment and the inner garment are reserved in the space. High-temperature air is discharged to the outside through the vent hole of the communication tube 44.
[0033]
Regarding the heat dissipation effect of heat generated in the wearer's body by actually wearing the heat-resistant protective clothing of the embodiment of the present invention configured as described above and exercising and measuring the temperature in the clothing, the heat dissipation means The results of a comparative study with the case of wearing a conventional garment not equipped with are shown below. At the same time, the subjects were also asked about the feeling of heat, swaying, operability, and lightness.
[0034]
In the wearing test, at an environmental room temperature of 16 ° C. and a humidity of 65%, after walking for 10 minutes, a treadmill was walked at an angle of 5 degrees for 20 minutes at a speed of 4 km / hr, and then a 10-minute break was taken. . In addition, the test was conducted with and without a respirator such as an oxygen cylinder on the back. The wearing test was conducted at the Yokohama Fire Training Center.
Test results,
Heat-resistant protective clothing of the present invention :
A) Temperature in the clothes on the back with a respiratory organ: 31.1 ° C
B) Temperature in the clothes on the back when there is no respiratory organ: 29.8 ° C
C) Temperature in the clothes at the back neck outlet with a respiratory organ: 27.1 ° C
D) Temperature in the clothes at the back neck outlet when there is no respiratory organ: 27.3 ° C
Conventional heat-resistant protective clothing :
A) Temperature in the clothes on the back when there is a respiratory organ: 35.3 ° C
B) Temperature in the clothes on the back when there is no respiratory organ: 32.3 ° C
C) Temperature in the clothes at the back neck outlet when there is a respiratory organ: 28.0 ° C
D) Temperature in the clothes at the back neck outlet without a respiratory organ: 29.3 ° C
Met.
[0035]
In the present invention, the result was that the feeling of heat was not hot, there was no sensation of feeling, the operability was good, and the feeling of lightness was felt light.
On the other hand, in the conventional example, the result was that the feeling of heat was very hot, there was a feeling of swell, there was a problem with the operability, and the feeling of lightness was felt very heavy.
[0036]
From the above answer results, it can be determined that by attaching the heat dissipating means, the back temperature in the clothes is low, and the back side neck outlet also tends to have a low temperature in the clothes, and the heat dissipation effect is recognized.
[0037]
Further, the structure of the mesh-like elastic body, which is a heat dissipation means in the above-described embodiment, has been described as a random structure taking a mesh-like form having no closed cells. However, the structure is not particularly limited to such a configuration, and is a bellows structure. The bellows structure may be any material as long as the material having the bellows shape has a heat dissipation effect (pump effect) by compressing and deforming by folding.
[0038]
For example, the material used for the bellows structure includes a fiber structure in which a non-woven fabric is partially fused, a woven fabric, and the like, and can be composed of fibers such as polyester, polybenzoxazole, aramid, polyimide, and the like.
Further, a three-dimensional knitted structure in which the fiber longitudinal direction of the fibers constituting the knitted fabric is present not only in the warp direction and the plane direction of the weft direction but also in the thickness direction may be used. Polyester, nylon, polybenzoxazole, aramid, various types Fibers made of elastomer can be used.
[0039]
Furthermore, the mounting position of the heat dissipation means 40 of the present invention is not limited to the above-described embodiment, and even if the back side of the clothes having a heat-resistant protective function, the front side of the inner garment, the back side, etc. are integrated with the clothes, Alternatively, it may exist as a single piece of clothing without being integrated with the clothing. A single garment is a vest that has only the function of heat dissipation means. “Integration” means fixing the heat dissipating means of the present invention to the garment, and includes a method of sewing, bonding, or attaching a net to the garment and inserting it into a bag-like portion between the net and the garment. . When using a net, the heat dissipating means of the present invention may be inserted and removed.
[0040]
In the embodiment of the present invention, the heat dissipating means has been described for the configuration in which the heat dissipating means is disposed on the back side of the inner garment of the fireproof garment. However, the present invention is not limited to this, and if the outer garment is excellent in flame resistance and heat resistance, Of course, it is also possible to arrange the heat dissipating means directly on the back side of the outer garment so that the temperature in the protective garment can be reduced.
[0041]
【The invention's effect】
As described above, the heat-resistant protective clothing according to the present invention is a highly functional cushion material having a spring structure of a continuous linear random loop formed of a rubber elastic material while having excellent performance in heat resistance and fire resistance. By providing heat dissipation means composed of a net-like elastic body incorporating air, the air in clothes that has never existed flows and air is released to the outside by the pump effect (ventilation effect), and the temperature and humidity in the clothes are lowered. Has the effect of Such an effect reduces the risk of causing heat stroke during work because the heat accumulation in the body decreases and the body temperature hardly rises. In addition, the operability is not hindered and there is an effect of feeling lightness when worn.
[0042]
Further, the radiating means by providing the, if necessary piggyback extinguishing instrument during fire fighting with a weight such as oxygen cylinder occurs, heat dissipation means functions as a cushion, and between the inner clothing wearer of clothing and protective clothing It is possible to reduce the rise in air temperature and humidity inside the fire protection garment and increase the temperature by releasing the reserved high-temperature air to the outside air from the neck of the fire garment through the buttocks by the pump function accompanying the cushioning action. Therefore, it is possible to reduce thermal fatigue of wearers of heat-resistant protective clothing and improve workability such as fire fighting activities.
[Brief description of the drawings]
FIG. 1 is a partially cut-away front view showing an upper garment of a general fireproof suit, showing an embodiment of the heat-resistant protective suit of the present invention.
FIG. 2 is a rear view of the upper garment of the fireproof clothing shown in FIG.
FIG. 3 is a front view of the inner garment of the fireproof clothing shown in FIG.
4 is an enlarged sectional view taken along line AA in FIG. 3;
FIG. 5 is a partial longitudinal sectional view of a sleeve portion of the upper garment shown in FIG.
FIG. 6 is a front view showing the trousers of the fire protection suit according to the present invention.
FIG. 7 is a front view showing the inner garment of the trousers of the fireproof clothing according to the present invention.
[Explanation of symbols]
10 Fire fighting clothes 11 Upper garment 12 Left, right front body 13 Rear body 14 Left, right shoulder cloth 15 １６ 16 Left, right sleeve 17 Front sleeve 18 Upper rear sleeve 19 Lower rear sleeve 20 Left, right cuff cloth 21 Left, right Town part 22 Left, right turn 23 Back view 24 Dressing cloth 28 Main body part 30 Inner garment 31 Left, right front body 32 Rear body 33 Main body part 34 Cuffs 35 Left, right sleeve 36 Front sleeve part 37, 38 Upper, lower rear sleeve part 39 Bending margin 40 Heat radiation means 41 Reticulated elastic body 42 Surface 43 Net body 50 Pants 51 Outer clothes 61 Inner clothes 52, 62 Body part 53, 63 Left, right leg part 64 Left, right front body 65 Left, right rear body 66 Body part 67 Leg bending margin 80 Heat dissipation means

Claims (3)

It is composed of a net-like elastic body that incorporates a high-performance cushioning material with a spring structure of a continuous linear random loop formed from a rubber elastic material on at least a part of the back side of the outer garment of a garment or garment system that has a heat protection function. A heat-resistant protective clothing characterized by the provision of heat dissipation means. It said compression direction thickness of the heat dissipating means, according to claim 1 Symbol mounting refractory protective clothing, characterized in that the thickness of 2 to 100 mm. In heat-resistant protective clothing comprising an outer garment and an inner garment that is detachably attached to the outer garment or sewed on the outer garment, or a part of the backside cloth provided on the main body of the inner garment of the outer garment, a rubber elastic material A heat-resistant protective garment comprising heat radiation means composed of a net-like elastic body incorporating a high-performance cushion material having a spring structure of a continuous linear random loop formed from the above .

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