Cbrn protective clothing with partially foldable hood

Abstract

The invention relates to a garment (10) for protecting at least an upper portion of the body of a wearer against the effects of a contaminating agent, the garment including a hood (14) comprising in its thickness from an external environment, in which the wearer of the garment is moving, towards the body of said wearer, the following: - a first layer of material, referred to as the outer layer (20), configured to stop the contaminating agent present in liquid phase; and - a second layer of material, referred to as the inner layer (30), configured to absorb and / or adsorb the vapours from the contaminating agent, characterised in that the outer and inner layers each comprise a peripheral edge (21, 31) defining an opening intended for the user's face to pass through, and in that the peripheral edge (21) of the outer layer (20) is securely assembled to the peripheral edge (31) of the inner layer (30) only at a lower portion.

Description

[0001] Description

[0002] Title of the invention: CBRN protective clothing with partially foldable hood

[0003] Technical field of the invention

[0004] The present invention relates to the field of manufacturing protective clothing against nuclear, radiological, biological and chemical attacks. The present invention relates more particularly to a hood for CBRN protective clothing, such as a jacket or suit. The invention is intended for both military and civilian applications.

[0005] Prior art

[0006] There are many types of protective clothing, particularly for military use. Among them is protective clothing against NRBC risks (acronym for Nuclear, Radiological, Biological and Chemical). This clothing covers all or part of the user's body and is intended to protect the user against the effects of contaminating agents, whether chemical, biological or other in nature, in particular by preventing contact of these contaminating agents, whether in liquid, vapor or aerosol form, with the user's skin or mucous membranes.

[0007] Generally, a protective garment against CBRN risks consists of at least two layers of material, each one fulfilling a specific function:

[0008] - a layer, called external, intended to guarantee the non-penetration of contaminating agents in liquid form,

[0009] - a layer, called internal, intended to ensure the adsorption and / or absorption of contaminating agents in vapor form.

[0010] Various ranges of protective clothing have been developed, including items such as jackets, trousers, overalls and hoods.

[0011] In the specific example of the jacket, or the suit, it includes a hood intended to cover the user's head and neck, except for the face. The face is covered by a gas mask. When the user has to wear a helmet over the hood, it causes discomfort for the user. Indeed, the space between the helmet and the user's head is very limited, some helmets are even adapted to the morphology of the user's head. The extra thickness created by the different layers and by the seams constituting the hood generates compression zones which cause discomfort. In addition, in the example of helmets adapted to the morphology of the user's head, these are generally equipped with a sighting system. If the helmet is poorly adjusted on the head because of the hood, the user may no longer be operational.Removing the hood while wearing the helmet would mean that the user would no longer be protected, particularly against contaminants in vapor form, which is not an option. The same applies to the balaclava.

[0012] Presentation of the invention

[0013] The present invention aims to remedy the drawbacks of the solutions proposed by the prior art, in particular those set out above.

[0014] The present invention aims in particular to provide an effective solution making it possible to guarantee protection of the user, when wearing a helmet, against the effects of contaminating agents in all their forms, at least in liquid or vapor form, while maintaining comfort.

[0015] An additional objective of the invention is that this protective clothing remains simple to manufacture.

[0016] For this purpose, the present invention provides a protective garment for at least an upper part of a user's body against the effects of a contaminating agent, said protective garment comprising a hood. The protective garment is called CBRN protective garment.

[0017] Protective clothing is, for example, a jacket or a suit.

[0018] The hood preferably covers the user's head and neck, except for the face.

[0019] The protective clothing may include a front part, a back part which can be connected to each other and to the hood, and sleeves.

[0020] A contaminant is any toxic substance in liquid, vapor, or aerosol form, including chemical and / or biological, natural or synthetic, such as mustard gas. Protective clothing is intended primarily for military use. It may also be used for civilian purposes, for example by police, hospital personnel, and firefighters.

[0021] The hood, and more generally the protective clothing, includes in its thickness, from an external environment in which the user of the protective clothing moves towards the body of said user:

[0022] - a layer of material, preferably a textile layer, called the outer layer, configured to stop the contaminating agent in liquid form, having a dual hydrophobic and oleophobic characteristic,

[0023] - a layer of material, called the inner layer, configured to absorb and / or adsorb vapors from the contaminating agent.

[0024] For the purposes of this description, a layer having a hydrophobic characteristic means a layer which tends to repel water, whether by nature or by treatment.

[0025] For the purposes of this description, a layer having an oleophobic characteristic is understood to mean a layer which tends to repel oils, whether by nature or by treatment.

[0026] The outer layer and said inner layer of the hood each have a peripheral edge defining an opening for the user's face to pass through.

[0027] Advantageously, the peripheral edge of the outer layer of the hood is securely joined to the peripheral edge of the inner layer of the hood only at a lower portion.

[0028] In other words, the inner layer and the outer layer are irreversibly bonded together, for example by sewing, at the lower part of their peripheral edge, but are independent of each other on the remaining part of their peripheral edge.

[0029] Thus, a user of the protective clothing, when wearing the hood and wishing to put on his helmet, can partially separate the outer layer from the inner layer and fold it down towards the nape of the neck, then put on his helmet. The user advantageously continues to be protected against CBRN risks, the helmet then acting as protection against the contaminating agent in the liquid phase, thus fulfilling the role of the outer layer. Such an invention advantageously makes it possible to reduce the thickness of the hood, by removing the outer layer, which will considerably improve the comfort of the user and allow a better fit of the helmet, and consequently, in particular, better aiming for the user, when the helmet is equipped with a sighting system.

[0030] The invention also advantageously allows the user to be able to fold down and replace the outer layer whenever he wishes.

[0031] Preferably, the lower portion of the peripheral edge of the outer layer corresponds, when the user is wearing a helmet, to the portion of the peripheral edge of the outer layer that is not protected by the user's helmet. For example, this lower portion of the peripheral edge of the outer layer corresponds to a portion of the peripheral edge intended to be located under the user's ears, at the submandibular region, when the hood is worn by the user and closed.

[0032] The outer layer of the hood is advantageously not completely removable, which allows protection against the contaminating agent to be maintained in liquid form between the bottom of the helmet and the ventral and dorsal parts of the garment, particularly at the neck.

[0033] According to particular embodiments, the protective clothing according to the invention also meets the following characteristics, implemented separately or in each of their technically operational combinations.

[0034] In preferred embodiments of the invention, the inner layer comprises, at its peripheral edge, a first opening tightening system. The first opening tightening system makes it possible, when the user closes the hood around a gas mask, to ensure adjustment of the opening according to the size of the gas mask, and to exert tension around said gas mask.

[0035] The invention thus advantageously makes it possible to ensure, at the interface between the gas mask and the internal layer of the hood, a total seal so as to effectively prevent the spread of chemical agents in vapor form.

[0036] In preferred embodiments of the invention, the outer layer comprises, at its peripheral edge, a second opening clamping system. The second opening clamping system allows, when the user superimposes the outer layer on the inner layer, to press the peripheral edge of the outer layer against or close to the peripheral edge of the inner layer.

[0037] The invention thus advantageously makes it possible to ensure, at the interface between the peripheral edge of the internal layer and the peripheral edge of the external layer, a total seal so as to effectively prevent the passage of the contaminating agent, whether in liquid or vapor form, between the peripheral edges of the internal and external layers.

[0038] In preferred embodiments of the invention, the second opening tightening system comprises an elastic tightening cord.

[0039] In preferred embodiments of the invention, the outer layer and the inner layer each comprise, at their respective peripheral edges, reversible cooperating members for their attachment to each other. The reversible cooperating members are preferably distributed over all or part of the remaining part of the peripheral edges of the inner and outer layers. The reversible cooperating members for their attachment to each other are, for example, of the hook and loop type.

[0040] In alternative embodiments, the outer layer has a smaller dimension than the inner layer. When the outer layer is brought back onto the inner layer, said outer layer is tightly retained on the inner layer.

[0041] The invention thus advantageously makes it possible to ensure, at the interface between the peripheral edge of the internal layer and the peripheral edge of the external layer, a total seal so as to effectively prevent the passage of the contaminating agent, whether in liquid or vapor form, between the peripheral edges of the internal and external layers.

[0042] In preferred embodiments of the invention, the inner layer, at its peripheral edge, may be covered by a layer of material configured to stop the contaminating agent in liquid form, having a dual hydrophobic and oleophobic characteristic. Thus, if the peripheral edge of the outer layer were to shift slightly from the peripheral edge of the inner layer, for example during certain head movements of the user, the user would still remain protected against the spread of the contaminating agent in liquid form. Preferably, the layer of material used to cover the peripheral edge of the inner layer is identical to the outer layer.

[0043] In preferred embodiments of the invention, the hood may comprise a third layer of material, called an intermediate layer, configured to stop the contaminating agent in aerosol form, the intermediate layer being securely bonded to the inner layer. Thus, the outer layer can be folded down, independently of the inner layer and the intermediate layer.

[0044] In preferred embodiments, said intermediate layer may be securely assembled to the peripheral edge of the inner layer, or be laminated to an external surface of the inner layer, or even form an integral part of the inner layer.

[0045] In preferred embodiments of the invention, the hood may comprise a third layer of material, called an intermediate layer, configured to stop the contaminant in aerosol form, the intermediate layer being integrally bonded to the outer layer. Thus, the outer layer and the intermediate layer can be folded together, independently of the inner layer.

[0046] In preferred embodiments, said intermediate layer may be securely assembled to the peripheral edge of the outer layer, or be laminated to an internal surface of the outer layer, or even form an integral part of the outer layer.

[0047] Brief description of the figures

[0048] The invention will be better understood upon reading the following description, given by way of non-limiting example, and made with reference to the following figures: [Fig. 1] represents a side view of a user wearing protective clothing, with a hood, according to one embodiment of the invention;

[0049] [Fig. 2] shows, in side view, two illustrations of the progressive folding down, towards the user's neck, of an external layer of the hood of the protective clothing of figure 1;

[0050] [Fig. 3] shows, in side view, two illustrations of the user wearing the protective garment with the outer layer of the hood folded down of Figure 2, and a helmet; [Fig. 4] shows, in side view, two illustrations of the progressive folding down, towards the nape of the user's neck, of an inner layer of the hood of Figure 2.

[0051] In these figures, like reference numerals from one figure to another designate identical or similar elements. Furthermore, for reasons of clarity, the drawings are not to scale unless otherwise indicated.

[0052] Description of the embodiments

[0053] The invention will be described in the particular context of one of its preferred fields of application in which the NRBC protective clothing is a protective jacket, intended in particular for military use or for civilian use.

[0054] The invention is primarily intended, without this being limiting of the invention, for any person who may be required to use such a protective jacket in the context of their professional activity, such as for example a soldier, a gendarme, a police officer, a firefighter.

[0055] Such a protective jacket 10 is intended to protect the upper body of the user wearing it, in particular when said user has to move around in an outdoor environment contaminated by contaminating agents, such as for example chemical and / or biological agents.

[0056] The protective jacket 10 comprises, as illustrated in FIGS. 1 to 3, preferably a ventral part 11, intended to be arranged at the front of the user's body, i.e. at the level of his torso, and an opposite dorsal part 12, intended to be arranged at the level of the back of said user.

[0057] The protective jacket 10 preferably comprises two sleeves 13 (only one sleeve is shown in the figures), each intended to be arranged respectively at the level of one arm of the user.

[0058] The protective jacket 10 further comprises a hood 14, intended to be placed at the level of the user's head, covering the head, except the face, and the neck. When the hood is closed, the user's face emerges through an opening in the hood. More specifically, in the context of CBRN protective clothing, the user wears a gas mask 50 at face level. Thus, the face of the user equipped with the gas mask 50 worn by the user emerges through the opening in the hood. The protective jacket comprises, in its thickness, an external environment in which the body of the user wearing the protective jacket evolves under normal conditions of use, towards said body, at least:

[0059] - a first layer of material, called the outer layer 20,

[0060] - a second layer of material, called the internal layer 30, intended to be in direct or indirect contact with the body.

[0061] It is understood here that the ventral part, the dorsal part, the hood and the sleeves are all formed by the external layer 20 and the internal layer 30.

[0062] In Figure 1, only the outer layers 20 of the ventral part, the dorsal part, the hood and the sleeves are visible.

[0063] The outer layer 20 and the inner layer 30 are superimposed and preferably assembled together, by sewing, at least around the entire circumference of the ventral part, the dorsal part and the sleeves.

[0064] The outer layer 20 is composed of a material whose main functions are:

[0065] - on the one hand, to ensure the robustness of the protective jacket 10 by protection against external mechanical attacks / stresses, in particular resistance to abrasion and tearing, and

[0066] - on the other hand to guarantee the non-penetration of contaminating agents in liquid form.

[0067] The outer layer 20 also preferably has air permeability.

[0068] The outer layer 20 is preferably a textile layer. The outer layer 20 is for example composed of a woven, non-woven or knitted textile, made of natural fibers, synthetic fibers or cellular material.

[0069] The outer layer 20 is for example made of a fine fabric, for example a polyester fabric, a polyamide fabric, or a mixture with fibers such as for example cotton, aramid or viscose. Preferably, the outer layer is made of a mixture of the cotton / polyester or aramid / viscose type.

[0070] To ensure the non-penetration of contaminating agents in liquid form, the outer layer advantageously has a dual hydrophobic and oleophobic characteristic.

[0071] In one embodiment, this dual hydrophobic and oleophobic characteristic is generally obtained by applying, on one side of the textile, called the external side, located on the side of the external environment, a hydrophobic and oleophobic treatment, such as for example a treatment based on fluorocarbon resins, such as for example Teflon®.

[0072] In another embodiment, this dual hydrophobic and oleophobic characteristic is generally obtained by coating.

[0073] The outer layer 20 has, for example, a surface mass of between 150 and 250 g / m2, or more precisely of the order of 200 g / m2.

[0074] The inner layer 30 is composed of a material whose main function is to ensure the absorption and / or adsorption of contaminating agents in vapor form. This absorption and / or adsorption is generally obtained by an adsorbent medium which captures, by an adsorption or reaction phenomenon, the contaminating agents in vapor form.

[0075] The adsorbent medium is composed, for example, of activated carbon, zeolites, catalysts. The adsorbent medium is preferably integrated into the material in the form of powder, beads or even fibers.

[0076] The inner layer 30 also preferably has air permeability.

[0077] The inner layer 30 has, for example, a surface mass of between 60 and 450 g / m2, and more precisely between 200 and 350 g / m2.

[0078] In an alternative embodiment, the jacket may also include a third layer of material (not shown in the figures), called the intermediate layer, arranged between the outer layer 20 and the inner layer 30.

[0079] In an exemplary embodiment, the intermediate layer is composed of a material whose main function is to ensure the non-penetration of contaminating agents in aerosol form. The intermediate layer also preferably has air permeability. The intermediate layer is, for example, composed of a non-woven textile.

[0080] To ensure that contaminating agents in liquid and vapor form do not penetrate the interface between the hood and the ventral and dorsal parts, the hood 14 may preferably be assembled by sewing to said ventral and dorsal parts, or be made in one piece with the ventral and dorsal parts.

[0081] The hood 14 has a peripheral edge which, when the hood 14 is closed, delimits the opening intended for the passage of the face of the user equipped with the gas mask. The peripheral edge of the hood 14 is formed by a peripheral edge 31 of the inner layer 30 and a peripheral edge 21 of the outer layer 20.

[0082] In other words, the inner layer 30 of the hood 14 has a peripheral edge 31 and the outer layer 20 of the hood 14 has a peripheral edge 21, each defining an opening intended for the passage of the user's face, when the hood 14 is closed. When the hood is closed, the peripheral edge 21 of the outer layer 20 substantially overlaps the peripheral edge 31 of the inner layer 30, as illustrated in FIG. 1.

[0083] According to the invention, the peripheral edge 21 of the outer layer 20 of the hood 14 is securely assembled to the peripheral edge 31 of the inner layer 30 of the hood 14 only at a lower part 22.

[0084] By jointly assembled, it is meant that the outer layer 20 and the inner layer 30 of the hood 14 are irreversibly linked together.

[0085] Preferably, the outer layer 20 and the inner layer 30 of the hood 14 are connected to each other, at the lower part, by sewing.

[0086] The hood 14 according to the invention thus differs from existing hoods, where the outer layer 20 and the inner layer 30 are assembled together over their entire peripheral edge 21, 31.

[0087] The lower portion 22 of the peripheral edge 21 of the outer layer 20 and the lower portion 32 of the peripheral edge 31 of the inner layer 30 correspond to a lower portion of the opening.

[0088] Preferably, the lower part 22 of the peripheral edge 21 of the outer layer 20 corresponds, when the user wears a helmet 60, to the part of the peripheral edge 21 of the outer layer 20 which is not protected by the user's helmet 60.

[0089] In one embodiment, the lower portion of the peripheral edge 21 of the outer layer 20 corresponds to a portion of the peripheral edge intended to be located under the user's ears, at the submandibular region, when the hood is worn by the user and closed.

[0090] Thus, the inner layer 30 and the outer layer 20 are bonded together so that they can be shifted relative to each other from a fully assembled configuration, in which the outer layer is completely superimposed on the inner layer, to a partially assembled configuration, in which they are held together only at the lower portion of their peripheral edge 21, 31.

[0091] In other words, in the fully assembled configuration, the upper portion of the peripheral edge 21 of the outer layer 20 is superimposed on, or positioned close to, the upper portion of the peripheral edge 31 of the inner layer 30. In the partially assembled configuration, the upper portion of the peripheral edge 21 of the outer layer 20 is detached from the upper portion of the peripheral edge 31 of the inner layer 30 and the outer layer 20 can be folded down, independently of the inner layer 30. Preferably, the outer layer 20 can be folded down to the nape of the user's neck, when the user is wearing the hood.

[0092] Preferably, the inner layer 30 and the outer layer 20 are also securely connected together behind the head, from their peripheral edges. In a preferred embodiment, the inner layer 30 and the outer layer 20 are connected together at the ends of the lower part of the peripheral edges. The inner layer 30 and the outer layer 20 are for example securely connected by a seam 23, as illustrated in FIG. 1. Preferably, the inner layer 30 and the outer layer 20 are securely connected at the occiput of the user's head, when the user wears the hood. Preferably, when the user wears the hood, the secure connection, behind the head, between the inner layer 30 and the outer layer 20 is located above the outer peripheral edge of the outer layer, when the outer layer is folded down.So, even when the outer layer is folded down, and the helmet is put on, the user is protected, between the part located under the helmet and the folded down outer layer.

[0093] In a preferred embodiment (not shown), the inner layer 30, at its peripheral edge 31, may be covered by a layer of material configured to stop the contaminating agent in liquid form, having a dual hydrophobic and oleophobic characteristic. Thus, if the peripheral edge 21 of the outer layer 20 were to be slightly offset from the peripheral edge 31 of the inner layer 30, for example following certain head movements of the user, the user would nevertheless remain protected, between the two peripheral edges 21, 31, against the spread of the contaminating agent in liquid form. The layer of material used to cover the peripheral edge 31 of the inner layer 30 is preferably similar to the outer layer.

[0094] In the embodiment variant where the protective jacket comprises the intermediate layer, configured to stop the contaminating agent in aerosol form, said intermediate layer is preferably assembled integrally with the inner layer. Said intermediate layer may for example be assembled integrally with the peripheral edge 31 of the inner layer 30, or be laminated to an external surface of the inner layer 30, or even be an integral part of the inner layer 30. By external surface of the inner layer, is meant the surface of the inner layer which is opposite a surface of the inner layer facing the user's head. Thus, in the partially assembled configuration, the upper part of the peripheral edge 21 of the outer layer 20 is dissociated from the upper part of the peripheral edge 31 of the inner layer 30 and from the intermediate layer.The outer layer 20 can be folded down, independently of the inner layer 30 and the intermediate layer. Alternatively, the intermediate layer can be assembled to the outer layer. Said intermediate layer can for example be assembled integrally to the peripheral edge 21 of the outer layer 20, or be laminated to an inner surface of the outer layer 20, or even be an integral part of the outer layer 20. By inner surface of the outer layer is meant the surface facing the outer surface of the inner layer. Thus, in the partially assembled configuration, the outer layer 20 and the intermediate layer can be folded down together, independently of the inner layer 30.

[0095] Preferably, the inner layer 30 of the hood 14 comprises, at the peripheral edge 31, a system for tightening the opening, called the first tightening system (not shown in the figures). The first tightening system advantageously makes it possible to exert tension around the user's gas mask 50, when the hood 14 is closed, and to ensure adjustment of the circumference of the opening as a function of the size of the gas mask.

[0096] In one embodiment of the first tightening system, said first opening tightening system is an elastic tightening cord. The elastic tightening cord may preferably be inserted into a receiving channel, for example formed by sewing from said inner layer. Said elastic tightening cord, for example a flat elastic, preferably has a length less than the circumference of the opening.

[0097] In another embodiment of the first tightening system, said tightening cord is a cord, elastic or not, inserted into a receiving channel, for example formed by sewing from said inner layer. The two free ends of the cord exit the receiving channel, via two eyelets made in said receiving channel, and which can be grasped and pulled by the user to reduce the length of the cord in the receiving channel, thus reducing the circumference of the opening. Locking means, of the blocker type, for example, are associated with the cord, to maintain the desired length of the cord in the receiving channel. Thus, when the user comes to close the hood around his gas mask, the user tightens the tightening cord of the inner layer 30 around the gas mask, reducing the length of the tightening cord, and consequently reduces the circumference of the opening, so as to adapt to the size of the gas mask.

[0098] In one embodiment, to hold the outer layer 20 against the inner layer 30 of the hood, and to prevent the penetration of the contaminating agent, in any form, between the peripheral edges of the two layers 20, 30, the outer layer has a smaller dimension than the inner layer. Thus, when the outer layer 20 is brought back onto the inner layer 30, said outer layer is tightly retained on the inner layer 30.

[0099] In an alternative embodiment, to hold the outer layer 20 against the inner layer 30 of the hood, and to prevent the penetration of the contaminating agent, in any form whatsoever, between the peripheral edges of the two layers 20, 30, the outer layer 20 of the hood 14 comprises, at its peripheral edge 21, a system for tightening the opening, called the second tightening system (not shown in the figures). The second tightening system advantageously makes it possible to exert tension on the inner layer 30, at its peripheral edge 31, when the hood 14 is closed.

[0100] In one embodiment of the second tightening system, said second tightening system is an elastic drawstring. The elastic drawstring may preferably be inserted into a receiving channel, for example formed by sewing from said inner layer. Said elastic drawstring, for example a flat elastic, preferably has a length less than the circumference of the opening.

[0101] In another alternative embodiment, to hold the outer layer 20 against the inner layer 30 of the hood, and to prevent the penetration of the contaminating agent, in any form whatsoever, between the peripheral edges of the two layers 20, 30, the outer layer 20 and the inner layer 30 each comprise, at their respective peripheral edge 21, 31, excluding the lower part, cooperating reversible members for fixing them together. Preferably, the cooperating reversible members are distributed over all or part of the peripheral edge of the inner layer 30 and that of the outer layer 20, excluding the lower part. Preferably, the cooperating reversible members are distributed over the entire peripheral edge of the inner layer 30 and that of the outer layer 20.

[0102] In one embodiment, the cooperating reversible members are of the hook and loop type, also called self-gripping strip, and notably marketed under the name Velcro®.

[0103] Figures 1 to 4 illustrate different examples of use of the protective jacket and its hood, with or without a helmet. In these different figures, the hood 14 comprises the inner layer 30 and the outer layer 20.

[0104] Figure 1 illustrates an example of a user wearing only the hood.

[0105] In this case, when the hood is closed, the outer layer 20 and the inner layer 30 of said hood 14 are in the fully assembled configuration. The peripheral edge 21 of the outer layer 20 is superimposed on the peripheral edge 31 of the inner layer 30. The peripheral edge 31 of the inner layer 30 is held tight against the user's gas mask, thanks to the first clamping system. The peripheral edge 21 of the outer layer 20 is tightly connected to the peripheral edge 31 of the inner layer 30, in order to prevent the penetration of the contaminating agent, in any form, between the two layers 20, 30. Each of the two layers plays its role in protecting the user together against CBRN risks.

[0106] When the user wants to wear a helmet 60, while keeping its hood 14, the outer layer 20 is previously partially disassembled from the inner layer 30 and folded down towards the nape of the user's neck. The outer layer 20 and the inner layer 30 of the hood 14 are then in the partially assembled configuration. The peripheral edge 21 of the outer layer 20 is moved away from the peripheral edge of the inner layer and the outer layer 20 is folded down at the nape of the user's neck. The two representations of FIG. 2 illustrate the progressive folding of the outer layer 20 towards the nape of the neck. The peripheral edge 31 of the inner layer 30 is always held tight, by the first tightening system, against the user's gas mask.

[0107] Figure 3 illustrates the user with his helmet 60, and the outer layer 20 folded down. The left representation of Figure 3 shows the bottom of the helmet 60 overlapping the seam 23 (seam not visible). The right representation of Figure 3 shows the bottom of the helmet 60 not overlapping the seam 23 (seam visible), but close to it. The user advantageously continues to be protected against CBRN risks, the helmet 60 then acting as protection against the contaminating agent in liquid phase, thus fulfilling the role of the outer layer 20. Having one less layer on the head considerably improves the comfort of the user when wearing his helmet 60, allows him to remain operational (when the helmet is equipped with a sighting system), while guaranteeing him complete protection against CBRN risks.

[0108] The fact that the outer layer 20 of the hood 14 cannot be removed entirely advantageously prevents the user from losing it and maintains protection against the contaminating agent in liquid form between the bottom of the helmet 60 and the ventral and dorsal parts of the garment, in particular at the neck.

[0109] When the user removes his helmet 60, the user can immediately bring the outer layer 20 back over the head and replace the outer 20 and inner 30 layers of the hood 14 in the fully assembled configuration, where they overlap.

[0110] When the user wishes to remove his hood 14, the first tightening system is loosened and the inner layer 30 is folded down towards the nape of the neck. The two representations in FIG. 4 illustrate the progressive folding of the inner layer 30 towards the nape of the neck. The user can then remove his gas mask 50.

[0111] The above description clearly illustrates that through its various features and their advantages, the present invention achieves the objectives it set for itself. In particular, the invention provides a protective garment with a hood which allows the user, when he has to wear a helmet 60 over the hood, to continue to be protected against NRBC risks, while ensuring comfort for the user.

[0112] The hood also ensures a good interface between the inner and outer layers. A good interface means an interface capable of ensuring a complete seal between the two layers in order to effectively prevent the spread of the contaminating agent in all possible forms.

[0113] The protective clothing is described in the preferred example of a protective jacket, but it can also be in the form of a suit protecting at least one upper part of the body. All the features described above for the jacket are adaptable to the suit.

[0114] The hood features can also be adapted to a balaclava, in all the possible combinations described above.

Claims

Demands Claim 1. Protective clothing (10) covering at least one upper part of a user's body, against the effects of a contaminating agent, the protective clothing comprising a hood (14), said hood comprising within its thickness, protection from an external environment in which the user moves, from the protective clothing towards the body of said user: - a first layer of material, called the outer layer (20), configured to stop the contaminating agent in liquid phase, having a dual hydrophobic and oleophobic characteristic, - a second layer of material, called inner layer (30), configured to absorb and / or adsorb vapors from the contaminating agent, characterized in that said outer layer and said inner layer each have a peripheral edge (21, 31) defining an opening for the passage of the user's face, and in that the peripheral edge (21) of the outer layer (20) is assembled securely to the peripheral edge (31) of the inner layer (30) only at the level of a lower part (22, 32). Claim 2. Protective garment (10) according to claim 1 in which the inner layer (30) comprises, at its peripheral edge (31), a first opening tightening system. Claim s. Protective garment (10) according to claim 2 in which the outer layer (20) comprises, at its peripheral edge (21), a second opening tightening system. Claim 4. Protective garment (10) according to claim 3 in which the second opening tightening system comprises an elastic drawstring. Claim s. Protective garment (10) according to claim 2 in which the outer layer (20) and the inner layer (30) each have, at their respective peripheral edge (21, 31), reversible cooperating elements for their attachment to each other. Claim s. Protective garment (10) according to any one of the preceding claims, wherein the inner layer (30), at its peripheral edge (31), is covered by a layer of material configured to stop the contaminating agent in liquid form, exhibiting a dual hydrophobic and oleophobic characteristic. Claim 7. Protective clothing (10) according to any one of the preceding claims in which the hood (14) comprises a third layer of material, referred to as the intermediate layer, configured to stop the contaminant in aerosol form, said intermediate layer being bonded securely to the inner layer (30).

Images