Head protection bonnet

Abstract

The present invention relates to a head protection bonnet 1 for wearing under a steel helmet or a ballistic helmet 4, comprising an outer layer 3, a damping layer 1.1 at least indirectly adjacent to said outer layer 3, and an inner fabric layer 1.2, said outer layer 3 being fire or flame resistant, cut resistant and puncture resistant.

Description

[Technical field]

[0001] The present invention relates to a head protection bonnet for wearing inside a steel helmet or under a ballistic helmet, comprising an outer layer, a damping layer at least indirectly adjacent to said outer layer, and an inner layer. [Background technology]

[0002] A protective head covering is already known from DE 9108221 U1.

[0003] US 2002 / 0068152 A1 describes an inner layer for a helmet having a plurality of cells filled with paraffin for cooling purposes.

[0004] WO 2008 / 149127 A1 describes a multi-layer fabric in which one layer is provided with paraffin microcapsules for cooling purposes.

[0005] The invention is based on the problem of designing and arranging a head protection bonnet in such a way that comfort and safety when worn are ensured. Summary of the Invention

[0006] According to the invention, this problem is solved in that the outer layer is fire or flame resistant, cut resistant and puncture resistant, thereby ensuring maximum protection for the armored soldier not wearing a ballistic helmet. The outer layer is also at least one of the following: non-melting and non-dripping, water repellent, dimensionally stable, abrasion resistant, tear resistant and washable. The outer layer is formed from one or several threads or fibres. The first thread or fibre has a dTex value T1 of 300≦T1≦440 or T1=370. The second thread or fibre has a dTex value T2 of 500≦T2≦600 or T2=550. The dTex values ​​have the unit g / 10 km. The inner layer has a dTex value T1 of 350 g / m 2 ≦Gf≦410g / m 2 , or Gf=380g / m 2The sheet has a basis weight Gf of 1000 g.

[0007] Each fabric layer can be advantageously designed as a fabric layer with a corresponding woven structure of the fabric fibers. Depending on the material used, the fabric has advantageous physical properties. For example, the fabric has higher strength or has higher resistance. Nonwoven materials can have a lower density and therefore are relatively light.

[0008] The present invention relates to a system consisting of a head protection bonnet as an under-helmet for a steel helmet or a ballistic helmet.

[0009] Fire or flame-resistant, cut-resistant, and / or puncture-resistant fibers such as aramid or modacrylic are used in the manufacture of head protection bonnets. Aramid is a liquid crystal polymer. Aramid or aromatic polyamide (polyaramid) is not a polyamide that itself has aromatic groups in its backbone, but rather, as defined by the US Federal Trade Commission, is only a long-chain synthetic polyamide in which at least 85% of the amide groups are directly attached to two aromatic rings. Modacrylic is a synthetic copolymer. Modacrylic fiber is a modified acrylic fiber composed of acrylonitrile, but with large amounts of other polymers added to produce a copolymer.

[0010] It may also be advantageous if the inner fabric layer is fire resistant or flame retardant, which provides good protection, and the inner fabric layer is also at least one of the following: non-melting, non-dripping, absorbent, soft, and washable.

[0011] Furthermore, it is advantageous if the inner fabric layer is designed as a cooling layer and has a cooling medium connected to it or integrally contained therein, always present in it, so that when heat is introduced, the cooling medium changes its state of mass. The cooling medium is a so-called PCM (phase change material). The PCM is able to absorb body heat, thereby at least partially changing its state of mass from solid to liquid. This ensures a uniform temperature between the inner material layer and the scalp. This cooling property of the inner fabric layer increases the comfort when worn. The fabric layer can also be designed as a fabric layer. Since the cooling medium is an integral part of the inner fabric layer, it has capsules or chambers in which the actual cooling agent (PCM) is contained. The capsules or chambers are connected to or woven into the inner fabric layer so that they do not detach from the fabric layer.

[0012] The capsules or chambers are a few tenths of a micrometer in size and cannot be seen or felt in the inner fabric layer. The inner fabric layer can be applied directly to the part of the body to be protected, for example the head. An additional intermediate layer between the inner fabric layer and the part of the body would be disadvantageous, since it could isolate the part of the body against the inner fabric layer.

[0013] It may also be advantageous if the cooling medium comprises a coolant and is integrated or absorbed into the fabric layer, with paraffin being provided as the coolant. Paraffin is stable with a given melting point of approximately 30° C. and is contained in a capsule or chamber. In the case of the fabric layer, the paraffin is integrated into the fabric layer via a capsule or absorbed into the fabric layer. The capsule or chamber does not change its assembly state. Only the coolant contained therein (paraffin in this example) changes its assembly state upon absorption or release of thermal energy.

[0014] Advantageously, the damping layer can be designed as an impact protection layer made of plastic or foam and capable of adapting to the shape of the head, the foam design making it more comfortable to wear.

[0015] In the present invention, it may be very important that at least one first intermediate layer is provided, which is designed as a spacer layer and is adjacent to the inner fabric layer. The second intermediate layer has a thickness of 4.5 mm to 7 mm, or 5.5 mm to 6 mm. The cooling effect of the inner layer is improved by the spacer layer and the associated air cushion. Also, the drying of the inner fabric layer and therefore the absorption of sweat is improved.

[0016] With regard to the design and arrangement according to the invention, it may be advantageous if the inner fabric layer is composed of 60% to 80% of base fabric B and 20% to 40% of functional fabric F, the base fabric B being made of cotton or other moisture-absorbing materials such as modacrylic and / or lyocell, the functional fabric F having a cooling or temperature-levelling effect. The functional fabric F has a cellulose content of approximately 50 to 65% or 55 to 57% by weight. In the functional fabric F, the paraffin-treated yarns have a proportion of 25 to 34% or 28 to 30% by weight. The functional fabric F also has organically modified minerals. The base fabric B consists of 100% cotton, or 70 to 80% modacrylic and 20 to 30% lyocell. Lyocell is an artificial fabric and consists of processed wood fibres. This type of synthetic fabric is also known under the trade name Tencel.

[0017] It may also be advantageous if the outer layer is formed from aramid and / or para-aramid and / or modacrylic and / or antistatic conductive carbon-containing lightweight fibers, such as fibers under the trade name Belltron. The outer layer may consist of 93% aramid, 5% para-aramid, and 2% lightweight fibers. The outer layer is therefore fire and flame resistant, as well as cut and puncture resistant.

[0018] With regard to the formation and arrangement according to the invention, it may be advantageous if the first intermediate layer is formed from a plurality of rods or hairs arranged parallel to one another or at an acute angle α to one another and aligned transversely to the inner fabric layer, thereby ensuring its function as a spacer layer.

[0019] In the present invention, it may be advantageous if a second intermediate layer is provided and the first intermediate layer is woven into the second intermediate layer and into the inner fabric layer, which ensures a stable structure.

[0020] It may also be the case that the spacer layer together with the second intermediate layer or together with the fabric layer forms a composite layer and the head protection bonnet has a three-layer design, or that the spacer layer together with the fabric layer and the second intermediate layer are considered as a composite layer and the head protection bonnet has a two-layer design. The spacer layer is by definition only formed from hairs arranged next to each other and is therefore not stable by itself. In view of this, only the spacer layer can be further processed as part of the composite layer. That is, it can be combined with at least a damping layer to form a protective head cover. In the case of a composite layer consisting of three layers, the protective head cover has only two layers. In the case of a two-layer composite layer, the head protection bonnet has only three layers. Only if no composite layer is used, the head protection bonnet has four layers. However, more than four layers are not necessary. This makes the structure of the head protection bonnet less heavy, less costly and less production-intensive.

[0021] Additionally, it may be advantageous to use fire or flame resistant, cut and puncture resistant fibers such as aramid or modacrylic in the outer layers of the head protection bonnet, particularly the fabric layers.

[0022] A bulletproof helmet for bullet protection may be a steel helmet.

[0023] Further advantages and details of the invention are set forth in the claims and in the specification and shown in the drawings. [Brief description of the drawings]

[0024] [Figure 1] FIG. 2 is a cross-sectional view of a head protection bonnet as a schematic sketch. [Diagram 2] A bulletproof helmet with a protective head bonnet inserted. [Figure 3a] Exaggerated detail of the middle layer. [Figure 3an] An alternative embodiment to FIG. 3a. [Figure 3c] Close-up detail of the middle layer. [Figure 4] A capsule having a coolant inside. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] The head protection bonnet 1, which is shown in principle in the cross-section of Figure 1, has a four-layer structure. It comprises an outer layer 3, a damping layer 1.1 at least indirectly adjacent to the outer layer 3, and an inner fabric layer 1.2. A first intermediate layer 1.3 and a second intermediate layer 1.4 are arranged between the damping layer 1.1 and the fabric layer 1.2, so that the first intermediate layer 1.3 is located between the inner layer 1.2 and the second intermediate layer 1.4. The damping layer 1.1 is preferably made of foam and forms a cushioning impact protection layer.

[0026] The first intermediate layer 1.3 is designed as a so-called spacer layer and ensures a spatial distance between the inner layer 1.2 and the second intermediate layer 1.4, which improves the weldability and removal capability of the inner layer 1.2.

[0027] The inner layer 1.2 also comprises a cooling medium 2 which is integrally contained or arranged in the inner layer 1.2 and is in the form of paraffin, which has a corresponding heat capacity and ensures a heat absorption property aimed at cooling the scalp of the wearer of the head protection bonnet 1.

[0028] In the embodiment of FIG. 2, the head protection bonnet 1 is integrated as an inner liner into a steel or ballistic helmet 4. The relevant functional properties are as explained in the embodiment of FIG.

[0029] Figures 3a and 3b show an enlarged view of the inner fabric layer 1.2 together with the first and second intermediate layers 1.3 and 1.4 arranged thereon. The second intermediate layer 1.4 adjoins the first intermediate layer 1.3 or spacer layer at the top. Whereas the fabric layers 1.2 and 1.4 are made of fibrous material, the spacer layer 1.3 has a rod-like or hair-like structure. These rods or hairs are formed as pile yarns. According to the embodiment of Figure 3a, the hairs or sticks 1.3a are arranged at an angle α to each other. This angle α is an acute angle of about 40°. According to the embodiment of Figure 3b, the sticks or hairs 1.3 are aligned parallel to each other and at the same time perpendicular to the adjacent fabric layer 1.2 or intermediate layer 1.4. The spacer layer 1.3 is mechanically connected to both the fabric layer 1.2 and the second intermediate layer 1.4, for example by weaving. The spacer layer 1.3 together with the second intermediate layer 1.4 can also be considered a composite layer. Similarly, the spacer layer 1.3 together with the fabric layer 1.2 and the second intermediate layer 1.4 can also be considered a composite layer. This is because the spacer layer 1.3 is not stable on its own, since by definition it is simply made up of hairs placed next to each other.

[0030] In principle, as shown in Fig. 3b, the spacer layer 1.3 has a volume V. The volume V is composed of the volume S of the sticks 1.3 arranged inside and the remaining air volume L. The ratio S / L of the air volume L to the volume S is approximately 0.01 to 0.1.

[0031] As shown in Figures 3a and 3b, the fabric layer 1.2 has an outer surface 1.2a and a cooling medium 2, such as paraffin, integrated into the fabric layer 1.2.

[0032] According to the embodiment of FIG. 3c, the damping layer 1.1 is arranged adjacent to a second intermediate layer 1.4.

[0033] The same is contemplated for the example embodiment Fig. 3a. The configuration of the first intermediate layer 1.3, ie the rod-like structures or hair-like structures, is independent of the first intermediate layer 1.3 or the second intermediate layer 1.4.

[0034] Figure 4 shows a capsule or chamber 2.1 with a coolant 2.2, which is a PCM material. The chamber 2.1 itself does not change its assembly state. The chamber 2.1 acts as a container and is mechanically connected to the fabric of the fabric layer 1.2 so that it is integrated into the inner fabric layer 1.2.

[0035] 1 Head protection bonnet 1.1 Outer layer, damping layer 1.2 Inner fabric layer, inner layer 1.2a Exterior 1.3 First intermediate layer, spacer layer 1.3a Sticks, hair-like objects 1.4 The second middle tier 2 Cooling medium 2.1 Capsule, chamber 2.2 Coolant 3 outer layer 4 Steel helmet, bulletproof helmet L Volume S Volume V Volume α angle

Claims

1. A head protection bonnet (1) for wearing under a steel or ballistic helmet (4), comprising an outer layer (3), a damping layer (1.1) at least indirectly adjacent to said outer layer (3), and an inner fabric layer (1.2), In the head protection bonnet (1), the outer layer (3) has fire resistance or flame retardancy, cut resistance, and puncture resistance, said inner fabric layer (1.2) being composed of 60% to 80% of a base fabric B and 20% to 40% of a functional fabric F; said base fabric B being made of cotton, or modacrylic and / or lyocell, or other moisture-absorbing material; A head protection bonnet (1) characterized in that the functional fabric F is made of a material having a cooling effect.

2. said inner fabric layer (1.2) being fire-resistant or flame-retardant; A head protection bonnet (1) according to claim 1.

3. the inner fabric layer (1.2) is designed as a cooling layer and has a cooling medium (2) connected to it or contained integrally in it, the cooling medium (2) always being present within the inner fabric layer (1.2), When heat is introduced, the cooling medium (2) changes its state of mass. A head protection bonnet (1) according to claim 1.

4. The cooling medium (2) comprises a coolant (2.2) and is integrated into or absorbed in the inner fabric layer (1.2), Paraffin is provided as the coolant (2.2), Head protection bonnet (1) according to claim 3.

5. the damping layer (1.1) being designed as an impact protection layer made of plastic or foam and capable of adapting to the shape of the head, A head protection bonnet (1) according to claim 1.

6. At least one first intermediate layer (1.3) is provided, which is designed as a spacer layer and which is adjacent to said inner fabric layer (1.2), A head protection bonnet (1) according to claim 1.

7. said outer layer (3) being formed from aramid and / or para-aramid and / or modacrylic and / or antistatic conductive carbon-containing lightweight fibers; A head protection bonnet (1) according to claim 1.

8. the first intermediate layer (1.3) is formed from a plurality of sticks (1.3a) or hairs arranged parallel to one another or at an acute angle α to one another and aligned transversely to the inner fabric layer (1.2); Head protection bonnet (1) according to claim 6.

9. A second intermediate layer (1.4) is provided, said first intermediate layer (1.3) is woven into said second intermediate layer (1.4) and into said inner fabric layer (1.2); Head protection bonnet (1) according to claim 6.

10. said first intermediate layer (1.3) forms a composite layer together with said second intermediate layer (1.4) or with said inner fabric layer (1.2), said head protection bonnet having a three-layer design; or said first intermediate layer (1.3) together with said inner fabric layer (1.2) and said second intermediate layer (1.4) is considered a composite layer, said head protection bonnet being of two-layer design; Head protection bonnet (1) according to claim 9.

11. A system comprising a head protection bonnet (1) according to one of the claims 1 to 10 and a bulletproof helmet (4).

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