CN215124793U - Composite structure protective boots - Google Patents

Abstract

The utility model relates to a composite construction protective boot, wherein, protective boot include boot main part and boot end, the boot main part locate the boot end on, the skin of boot main part make by flexible surface fabric, the outside cladding of the vamp portion in the boot main part have the design protective layer. Adopt this composite construction protective boot can satisfy protective boot's protection characteristic, comfort level when can ensure protective boot wearing simultaneously avoids the uncomfortable sense that the leg of a boot portion adopted harder material to bring, simultaneously because the design protective layer only wraps the outside at the boot face portion in the boot main part, so it is more light, and this composite construction protective boot still possesses the characteristics that the cost is lower, application scope is wide simultaneously.

Description

Composite structure protective boots

Technical Field

The utility model relates to a protection apparatus technical field especially relates to foot protection technical field, specifically indicates a composite construction protection boots.

Background

From human physiology's angle, people's foot and shank are distributed a large amount of skeletons, muscle and nerve, so whether reasonable in boot structural design can influence the experience when walking in the very big degree, and to some boots that have the protectiveness requirement, whether reasonable in its structural design influences this boot in the very big degree and whether can satisfy the safeguard function to foot and shank.

Take fire control protection boots as an example, in order to effectively protect the fireman's shank, this kind of protection boots not only need satisfy fire-retardant demand when putting out a fire rescue, still need satisfy requirements such as antiseep, prevent pounding, resistant puncture, fire-fighting boots among the prior art generally adopt materials such as rubber or leather to constitute the boots face portion and the boots barrel portion of fire control protection boots based on these requirements, because fire-retardant rubber and leather have better fire-retardant, high temperature resistant and anti-cutting, mechanical protective properties such as resistant puncture, can satisfy protective properties, but these two kinds of materials texture are harder, the unit weight is heavier, can cause higher physiological burden to causing the fireman, also do not be favorable to the leg foot bending in the walking process.

At present, firefighters in China need to wear and wear protective equipment such as fire-fighting protective clothing, air respirators and the like when carrying out fire-fighting and disaster-relieving operations, and need to carry fire-fighting equipment such as fire hoses, water guns and the like. According to statistics, the total load on a fire fighter who is currently performing fire fighting is about 30 kg. Because the sole has set up the bottom plate of preventing puncturing, and this type of bottom plate of preventing puncturing among the prior art generally adopts the steel sheet to make, the bottom plate of preventing puncturing that the steel sheet was made is relatively poor in flexibility, can not make corresponding deformation along with the bending that the metatarsophalangeal position takes place in the motion process, the phenomenon of not following the foot appears easily, can produce great adverse effect to fire fighter's operating efficiency, and these heavy burdens on the fire fighter will be through being equipped with the sole reaction of bottom of the boot that prevents puncturing bottom plate and act on the leg foot, produce the effort that is equivalent to the total of complete equipment and individual weight 2-4 times to the leg foot. And firefighters often need to make strenuous movements on hard ground, increasing the impact force on their feet. Therefore, symptoms such as joint injury, shin bone pain and the like appear after long-term operation of many firemen, and other foot injuries such as foot sprain and foot abrasion and the like also easily appear in the walking process of the firemen. According to the GA 6-2004 standard, the weight of each pair of fire-extinguishing protective boots for the firefighters should not exceed 3.0kg, but the firefighters still generally reflect that the weight is too heavy and the physical strength is large. Through biomechanical tests, if the weight of the shoe is increased by 100g, the energy consumption is improved by 1%; for every 200g weight of the shoe, the energy consumption should be increased by 0.63J/min. According to the research of the Physiological influence of the Weight and style of the fire-extinguishing protective boots of the Firefighters on the Firefighters (physical Effects of fire Weight and Design on fire fighters) of the American occupational safety and health Association, the lung ventilation of the Firefighters is increased by 9 percent, the oxygen intake is increased by 5-6 percent, and the heartbeat frequency is increased by 6 percent when the Weight of the fire-extinguishing protective boots of the Firefighters is increased by 1.0kg, which also proves that the Weight of the fire-extinguishing protective boots of the Firefighters has important influence on the physical consumption of the Firefighters in the operation process.

Therefore, a protective boot with good protection performance and light weight is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a composite construction protection boots that the comfort level is good, the performance is good, can effectively satisfy protection demand.

In order to achieve the above object, the composite structure protective boot of the present invention has the following configurations:

the composite-structure protective boot is mainly characterized by comprising a boot main body and a boot bottom, wherein the boot main body is arranged on the boot bottom, the outer layer of the boot main body is made of flexible fabric, and the outer side of the boot surface part in the boot main body is coated with a shaping protective layer.

Preferably, the flexible fabric is a flame-retardant flexible fabric, and the boot main body further comprises an insulating waterproof layer and a comfortable layer which are arranged on the inner side of the outer layer.

Preferably, the flame-retardant flexible fabric is formed by aramid woven fabric with a polytetrafluoroethylene film adhered to the inner side;

the insulating waterproof layer is formed by compounding an expanded polytetrafluoroethylene film and an aromatic polyamide electric insulating felt.

Furthermore, the aramid woven fabric is made of a fabric comprising para-aramid fibers, meta-aramid fibers and antistatic yarns.

Preferably, the boot main body further comprises an inner bottom portion and a boot shaft portion, the inner bottom portion is positioned at the bottom of the boot surface portion, and the boot shaft portion is positioned above the boot surface portion;

the boot main body is connected with the boot bottom through the inner bottom, the protective boot further comprises a puncture-proof insole, and the puncture-proof insole is arranged between the inner bottom and the boot bottom.

More preferably, the anti-puncture middle sole is made of aromatic polyamide fiber felt.

Preferably, the sizing protective layer is made of first flame-retardant rubber, the boot sole is made of second flame-retardant rubber, and the sizing protective layer and the boot sole are of an integrated structure or a split structure connected with each other.

Preferably, the shaping protective layer is made of flame-retardant cowhide.

Preferably, a toe box is further arranged between the vamp part and the shaping protective layer, and the toe box is positioned at the toe box part of the vamp part;

the outer side of the shaping protective layer is also provided with an outer wrapping head, and the outer wrapping head is positioned at the shoe head part of the shaping protective layer.

Preferably, the inner cap is a glass fiber cap, and the outer cap is a rubber cap.

Preferably, the protective boot further comprises an ankle protective layer, and the ankle protective layer is positioned at the outer ankle part of the boot tube part in the boot main body.

Preferably, the protective boots further comprise a heel stabilizing piece, and the heel stabilizing piece is arranged at the heel part of the boot tube part in the boot main body.

The utility model discloses a composite construction protection boots include boot main part and boot end, the boot main part locate the boot end on, the skin of boot main part make by flexible surface fabric, the facial outside cladding of boots in the boot main part have the design protective layer. Can satisfy the protection characteristic of protection boots through such structural design, comfort level when can ensure the protection boots simultaneously and wear avoids the uncomfortable sense that the leg of a boot portion adopted harder material to bring, simultaneously because the design protective layer only wraps the outside at the face portion of the boots in the boot main part, so it is more light, and this composite construction protection boots still possesses the characteristics that the cost is lower, application scope is wide simultaneously.

Drawings

Fig. 1 is a schematic structural view of a composite-structured protective boot.

Fig. 2 is a schematic view of the hierarchical structure of the boot main body of the composite-structure boot.

Figure 3 is a schematic cross-sectional view of a composite construction boot.

Reference numerals

1 boot body

11 flame-retardant flexible fabric

111 aramid woven fabric

112 Polytetrafluoroethylene film

12 insulating waterproof layer

121 aromatic polyamide electric insulation felt

122 expanded polytetrafluoroethylene film

13 comfort layer

2 boot sole

3 shaping protective layer

4 outer wrapping head

5 inner tap

6 ankle bone protective layer

7 puncture-proof insole

8 heel stabilizing sheet

Detailed Description

In order to more clearly describe the technical content of the present invention, the following further description is given with reference to specific embodiments.

The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In this embodiment, the composite-structure protective boot includes a boot main body 1 and a boot sole 2, the boot main body 1 is disposed on the boot sole 2, an outer layer of the boot main body 1 is made of a flexible fabric, and a shaping protective layer 3 is coated on an outer side of a boot vamp in the boot main body 1, and the specific structure can be seen in fig. 1 and fig. 3, that is, the shaping protective layer 3 sequentially covers a toe part of the boot, an instep part of the boot, and a heel part of the boot.

The composite structure protective boot in the embodiment combines the structural characteristics of human bodies and the protection requirements, adopts flexible fabrics to make the outer layer of the boot main body 1, and the outer side of the boot surface part of the boot main body 1 is coated with the shaping protective layer 3. Meanwhile, in the application environment of the protective boot, the situation that a foreign object can knock and smash the instep is frequently encountered, and the external object does not knock and smash the boot leg part generally, namely although the boot leg part also needs to have certain characteristics of tearing prevention, cutting prevention and the like, the tearing prevention, cutting prevention and smashing requirements of the boot leg part are not so high as the requirements of the boot face part and the boot bottom part, based on the characteristic, the utility model discloses in the boot face part in the boot main body 1, the boot face part is provided with the shaping protective layer 3 to protect the instep of a wearer and the boot face part in the boot main body 1, and the setting of the shaping protective layer 3 can make the boot face position have a relatively fixed outline, effectively avoid the problem of inconvenience brought to walking due to the over-softness of the whole boot face, and effectively prolong the service life of the boot. Moreover, because the outer layer of the boot main body 1 is made of flexible fabric, and the shaping protective layer 3 only covers the outer side of the vamp part in the boot main body 1, compared with the prior art that the outer layers of other vamp and boot barrel parts are made of the same harder material (such as rubber, leather and the like), the boot is lighter and lighter on the basis of effectively realizing the same protection function.

In the manufacturing process of the composite structure protective boot, the boot main body 1 can be bonded with the boot sole 2 and the shaping protective layer 3 through the glue film melted at high temperature to form the whole boot.

As shown in fig. 2, in this embodiment, the flexible fabric is a flame retardant flexible fabric 11, and the boot main body 1 further includes an insulating waterproof layer 12 and a comfort layer 13 disposed inside the outer layer.

In this embodiment, the flame-retardant flexible fabric 11 is made of aramid woven fabric 111 with a polytetrafluoroethylene film 112 (i.e., PTFE film) adhered to the inner side;

the insulating waterproof layer 12 is formed by compounding an expanded polytetrafluoroethylene film 122 (namely an ePTFE film) and an aromatic polyamide electric insulating felt 121.

In this embodiment, the aramid woven fabric 111 is made of a fabric including para-aramid fibers, meta-aramid fibers, and antistatic yarns, that is, the aramid woven fabric 111 may be woven of para-aramid fibers, meta-aramid fibers, and antistatic yarns.

In the embodiment, the boot barrel part adopts the aramid shuttle-woven cloth 111 with the polytetrafluoroethylene film 112 adhered on the inner side to form the flame-retardant flexible fabric 11, the aramid shuttle-woven cloth has better flame-retardant, high-temperature-resistant, cutting-resistant, puncture-resistant and other mechanical protection performances, and simultaneously compared with flame-retardant rubber and leather which are manufactured into the outer layer of the protection boot in the prior art, the aramid shuttle-woven cloth is soft in texture and is a flexible fabric, and meanwhile, the aramid shuttle-woven cloth is light and thin and has lighter unit weight. And the polytetrafluoroethylene film 112 is adhered to the inner side of the aramid woven fabric, so that the antifouling, oil-resistant and water-repellent properties of the protective boot can be effectively improved. Namely, the flame-retardant flexible fabric 11 composed of the aramid woven fabric 111 with the polytetrafluoroethylene film 112 adhered to the inner side in the embodiment is used as the outer layer of the boot main body 1, so that the high-temperature resistance and flame-retardant performance of 260 ℃ is realized, and the boot has good mechanical protection performance of puncture resistance, cutting resistance and the like, and has the performances of stain resistance, easy decontamination, oil resistance, water repellency and the like. The material is soft and light in texture, greatly improves the wearing dexterity and comfort of the whole boot, and effectively protects the shank of a wearer.

Meanwhile, in order to protect the human body in a high-voltage environment with water leakage, the boot main body 1 is further provided with an insulating waterproof layer 12, and in this embodiment, the insulating waterproof layer 12 is formed by compounding an expanded polytetrafluoroethylene film 122 and an aromatic polyamide electric insulating felt 121. In order to ensure the safety protection performance and wearing comfort of the whole boot in the actual production process, a hot-pressing composite technology can be adopted to carry out multi-layer compounding on an expanded polytetrafluoroethylene film 122 (namely, a novel ePTFE waterproof breathable film) and an aromatic polyamide electric insulating felt 121 material to form a composite layer with the characteristics of electric insulation, water resistance and ventilation, and the functions of preventing liquid permeation, soaking electric insulation and discharging damp and hot gas in a boot cavity are achieved.

At present, various clothes needing waterproof function are generally made of PTFE, PU and other waterproof and breathable materials, so that the clothes have certain functions of preventing water from permeating and removing damp and hot gas on the body surface. The common PTFE waterproof breathable film is prepared by rolling and double-sided stretching polytetrafluoroethylene resin, has the advantages of high temperature resistance, electric insulation, acid and alkali resistance and physical and chemical properties of resisting various organic solvents, and hundreds of millions of capillary air holes are distributed on the surface, the size of the capillary air holes is ten thousand times smaller than that of water drops and about 700 times smaller than that of gas molecules, so that the common PTFE waterproof breathable film has good breathability while being waterproof. However, PTFE materials have a relatively strong affinity for a variety of lipid molecules, and thus, when used beyond a certain limit, a large amount of lipid secreted from the skin surface of the human body accumulates on the membrane, and when accumulated to a certain extent, the lipid increases the tension of the membrane surface, thereby allowing water droplets to penetrate from the membrane side, causing permeation. To solve this problem, most PTFE membranes are severely reduced in breathability by coating the body-facing side of the membrane with a polyurethane layer that blocks body surface oils on one side, but also covers all the micropores in the membrane surface. If such a PTFE membrane is used, moisture will be slowly absorbed into the polyurethane layer only when the humidity within the boot cavity reaches a certain level, and then when the heat within the boot cavity reaches a sufficiently high level, excess moisture will be transferred through the polyurethane layer to the outside of the boot cavity, causing the microclimate within the boot cavity to remain moist for a long period of time. This "wet system" effect will severely degrade the original comfort function and may even cause foot frostbite in extremely low temperature environments.

To the situation, the utility model adopts an expanded polytetrafluoroethylene film (namely ePTFE waterproof ventilated film) with the function of active moisture conduction and an aromatic polyamide electric insulation felt 121 to realize the waterproof and insulating functions. The expanded polytetrafluoroethylene film realizes that pores of the film are always kept open through the continuous change of a polymer structure, ensures that moisture in a boot cavity can be horizontally conducted with high efficiency, helps a human body to reduce perspiration to the minimum limit, avoids the trouble of overhigh temperature of the human body, and realizes the maximum comfort. Through tests, the moisture permeability of the material reaches 20000g/m2 & 24h, and the PTFE film compounded by the common polyurethane layer is 10000g/m2 & 24h, wherein the former can obviously improve the waterproof and breathable comfort in the boot cavity compared with the latter.

And simultaneously, the utility model discloses in adopt aromatic polyamide electric insulation felt 121 (it is the surface fabric of being made into by aromatic polyamide material) to realize insulating function, the aromatic polyamide electric insulation felt material that uses in the insulating and waterproof layer has higher mechanical strength, flexibility and good electric property, can keep its characteristic under higher temperature moreover. According to experiments, when the thickness of the aromatic polyamide electric insulation felt exceeds 0.18m, the power saving strength basically reaches 33kV/mm, and the aromatic polyamide electric insulation felt has higher high-voltage electric breakdown resistance. The dielectric constant of the material is continuously increased along with the increase of the thickness, and when the test frequency is 60Hz, the dielectric constant of the aromatic polyamide electric insulation felt with the thickness of 0.61mm can reach 3.7. By comprehensive consideration, the composite-structure protective boots in the embodiment use the aromatic polyamide electric insulation felt with the thickness of 0.25mm and the expanded polytetrafluoroethylene film to be compounded into the insulation waterproof layer in the boot main body 1.

Tests prove that the temperature has no obvious influence on the dielectric constant and the dielectric strength of the aromatic polyamide electric insulation felt, and the characteristic makes the composite structure protective boot of the structure very suitable for being used as a fire-fighting protective boot for firemen needing to wear and use under various temperature environments.

The effect of humidity on the electrically insulating felt is very important since the use of fire fighter fire protection boots may have a large amount of liquid present and may even require wading. Experiments show that the relative humidity has small influence on the dielectric strength and the dielectric constant of the material, and is suitable for application in fire fighting actual combat operation environments. Because a fireman often needs to work for a long time in a fire-fighting and disaster-relief site with deep water accumulation and is very easy to seep water to bury hidden danger for electric shock accidents of the fireman, the composite-structure protective boots are immersed into the water in the test process, the height of the water surface 30mm away from the boot opening is kept, the protective boots are detected by adopting a 'wet method' detection mode specified in 5.13 in GB 20991 plus 2007 test method of individual protective equipment shoes, the leakage current of the protective boots is measured to be 0.07mA, and the protective boots are not punctured through 5kV voltage, so that the composite-structure protective boots can be effectively applied to fire-fighting operation. Of course, the composite structure protective boot can be used in other similar environments besides fire fighting operation, and achieves the protective function.

As shown in fig. 3, in this embodiment, the boot main body 1 further includes an inner bottom portion located at the bottom of the boot surface portion, and a boot shaft portion located above the boot surface portion;

the boot main body 1 is connected with the boot bottom 2 through the inner bottom, the protective boot further comprises a puncture-proof insole 7, and the puncture-proof insole 7 is arranged between the inner bottom and the boot bottom 2.

In this embodiment, the anti-puncturing midsole 7 is made of aramid fiber felt, and in this embodiment, the thickness of the aramid fiber felt is greater than or equal to 5mm, which can effectively prevent puncturing. Because the fiber felt made of the aromatic polyamide fiber felt not only has the characteristics of puncture resistance and cutting resistance, but also is very soft, the puncture-proof insole 7 of the composite structure protective boots made of the aromatic polyamide fiber felt not only can ensure that the protective boots have the same puncture-proof performance as the protective boots provided with the stainless steel puncture-proof insole 7 in the prior art, effectively prevent the feet of a wearer from being punctured by sharp objects, but also have good flexibility, can be properly deformed along with gait, reduce the energy consumption required by the flexing motion of the boot bottom when the wearer wears the protective boots, and follow the feet, reduce the heavy and fatigue feeling when the wearer wears the protective boots in the past, and not only can effectively reduce the impact force on the feet compared with the puncture-proof insole 7 made of a steel plate in the prior art, better protects the joint, the shin bone and other parts of the wearer.

In this embodiment, the shaped protective layer 3 is made of a first flame-retardant rubber, the sole is made of a second flame-retardant rubber, and the shaped protective layer and the sole are of an integral structure or a split structure connected with each other. If the sizing protection layer and the boot sole are of a split structure which is connected with each other, the sizing protection layer and the boot sole can be connected in a sewing or gluing mode and the like.

In other embodiments, the setting protective layer can also be made of flame-retardant cowhide.

In this embodiment, an inner toe 5 is further disposed between the boot-side portion and the shaping protective layer, and the inner toe 5 is located at the toe-side portion of the boot-side portion;

the outer side of the shaping protective layer is also provided with an outer cap 4, and the outer cap 4 is positioned at the toe cap part of the shaping protective layer; the specific structure can be seen in fig. 3.

In this embodiment, the inner cap 5 is a glass fiber cap, and the outer cap 4 is a rubber cap.

The glass fiber material constitutes inner toe 5 and can effectively realize preventing pounding the function, protects the toe portion of the wearer, and in considering the foot activity process, often can play the thing during toe portion position, so toe portion position is more fragile than other positions of shoes, and the protection boots in this embodiment realize protecting the design protective layer through setting up rubber-made outer toe 4 in toe portion position, effectively increases the life of protection boots.

In the embodiment, the glass fiber material is adopted to form the inner toe cap 5, so that compared with the protective boots adopting stainless steel materials to form the toe cap in the prior art, the protective boots have lighter weight and can effectively reduce the weight of the whole boot.

In this embodiment, the boot further comprises an ankle bone protector 6, and the ankle bone protector 6 is located at a lateral ankle bone portion of the shaft portion of the boot main body 1.

As shown in fig. 1, the ankle protecting layers 6 are positioned on the left and right sides of the position close to the heel part in the boot, so as to effectively control the movement of the heel part in the lateral direction, effectively prevent the wearer from spraining in a complicated working environment and protect the leg and the ankle.

The ankle protective layer 6 can be made of flame retardant rubber as the sizing protective layer, and when the ankle protective layer 6 is made of flame retardant rubber, the sizing protective layer, the ankle protective layer and the boot sole can be integrally formed.

As shown in fig. 3, the protective boot further includes a heel stabilizing piece 8, the heel stabilizing piece 8 is disposed at the heel portion of the boot tube portion of the boot main body to protect the heel of the wearer, it should be noted that fig. 3 is drawn only for drawing the position of the heel stabilizing piece 8, and the actual heel stabilizing piece 8 is in the position drawn in fig. 3, but not at the innermost layer of the protective boot, the position of the heel stabilizing piece 8 fitting the foot of the wearer, but may be positioned between the outer layer and the comfort layer of the boot main body. In other embodiments, the heel stabilizing piece 8 may be made of rubber, and is disposed on the outermost layer of the boot tube, and forms an integral structure with the toe cap, the ankle protective layer, the shaping protective layer, and the sole.

Due to the complex use occasions of the fire-extinguishing protective boots for the firefighters, high temperature, flame and various liquids can exist, and once the firefighters cannot evaluate the risk factors of the accident scene in advance, the factors all have serious consequences. Therefore, in order to reduce the harm of site uncontrollable risk factors to firemen as much as possible and improve the safety factor of the firemen in the operation of accident sites, the material and the processing technology of the fire-extinguishing protective boots for the firemen are very important. The composite structure protective boots in the embodiment can effectively realize the characteristics of high temperature resistance, flame retardance, liquid immersion prevention, insulation and the like, and effectively meet the requirement of fire rescue, so the composite structure protective boots in the embodiment can be used as fire protection protective boots.

The utility model discloses a composite construction protection boots include boot main part and boot end, the boot main part locate the boot end on, the boot main part make by flexible material, the outside cladding of the boot face portion in the boot main part have the design protective layer. Can satisfy the protection characteristic of protection boots through such structural design, comfort level when can ensure the protection boots simultaneously and wear avoids the uncomfortable sense that the leg of a boot portion adopted harder material to bring, simultaneously because the design protective layer only wraps the outside at the face portion of the boots in the boot main part, so it is more light, and this composite construction protection boots still possesses the characteristics that the cost is lower, application scope is wide simultaneously.

In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims (11)

1. The protective boots with the composite structures are characterized by comprising boot main bodies and boot bottoms, wherein the boot main bodies are arranged on the boot bottoms, the outer layers of the boot main bodies are made of flexible fabrics, and shaping protective layers are coated on the outer sides of boot surface portions in the boot main bodies.

2. The composite-structure protective boot of claim 1, wherein the flexible fabric is a flame-retardant flexible fabric, and the boot body further comprises an insulating waterproof layer and a comfort layer arranged on the inner side of the outer layer.

3. The composite structural protective boot of claim 2,

the flame-retardant flexible fabric is formed by aramid woven fabric with a polytetrafluoroethylene film adhered to the inner side;

the insulating waterproof layer is formed by compounding an expanded polytetrafluoroethylene film and an aromatic polyamide electric insulating felt.

4. The composite construction protective boot of claim 1, wherein said boot body further comprises an inner sole portion positioned at the bottom of said vamp portion and a shaft portion positioned above said vamp portion;

the boot main body is connected with the boot bottom through the inner bottom, the protective boot further comprises a puncture-proof insole, and the puncture-proof insole is arranged between the inner bottom and the boot bottom.

5. The composite protective boot of claim 4 wherein the puncture resistant midsole is comprised of an aramid fiber felt.

6. The composite construction protective boot of claim 1 wherein the shaped protective layer comprises a first flame retardant rubber and the sole comprises a second flame retardant rubber, the shaped protective layer and the sole being of one piece construction or of separate pieces connected to one another.

7. The composite protective boot of claim 1 wherein said shaped protective layer is comprised of flame retardant kraft.

8. The composite protective boot as claimed in claim 1, wherein a toe box is further provided between the boot surface portion and the shaped protective layer, and the toe box is located at the toe box portion of the boot surface portion;

the outer side of the shaping protective layer is also provided with an outer wrapping head, and the outer wrapping head is positioned at the shoe head part of the shaping protective layer.

9. The composite protective boot of claim 8, wherein the inner toe cap is a fiberglass toe cap and the outer toe cap is a rubber toe cap.

10. The composite construction boot of claim 1, further comprising an ankle bone protector located at an ankle bone portion of the boot shell portion of the boot body.

11. The composite construction protective boot of claim 1 further comprising a heel stabilizing tab disposed in the boot body at the heel portion of the boot canister portion.

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