BALLISTIC PROTECTIVE HELMET

Abstract

(in connection with FIG. 1)

The invention relates to a ballistic protective helmet (10) comprising a shell (21) comprising a shell material that is produced from a number of textile layers (11, 12) connected in a connection matrix.

The shell (21) of the protective helmet (10) according to the invention has a blind hole (22), wherein a threaded sleeve (23) has an outer thread (25) that penetrates into the shell material which surrounds the blind hole (22) in a peripheral direction, and wherein the threaded sleeve (23) has an inner thread (26) for connecting to a screwing means (24) having an outer thread (31).

Claims

1-15. (canceled)

16: A ballistic protective helmet comprising a shell comprising a shell material that is produced from a number of textile layers connected in a connection matrix, wherein the shell has a blind hole, wherein a threaded sleeve is introduced into the blind hole, wherein the threaded sleeve has an outer thread that penetrates into the shell material which surrounds the blind hole in a peripheral direction, and wherein the threaded sleeve has an inner thread for connecting to a screwing means having an outer thread.

17: The ballistic protective helmet according to claim 16, wherein the threaded sleeve is glued in the blind hole.

18: The ballistic protective helmet according to claim 16, wherein the blind hole has a depth of 4 mm to 10 mm.

19: The ballistic protective helmet according to claim 18, wherein the length of the threaded sleeve is the same depth as the blind hole.

20: The ballistic protective helmet according to claim 16, wherein the outer thread of the threaded sleeve has a thread pitch (h) of 1/7 to 3/7 relative to an outer diameter (DA) of the threaded sleeve.

21: The ballistic protective helmet according to claim 16, wherein the outer thread has a thread depth (I) of 3/28 to 2/7 relative to an outer diameter (DA) of the threaded sleeve.

22: The ballistic protective helmet according to claim 16, wherein the threaded sleeve has a wall thickness (W) of 0.5 mm to 3.0 mm.

23: The ballistic protective helmet according to claim 16, wherein the threaded sleeve has a warning color, at least on a part that is visible in a state in which the threaded sleeve is introduced into the blind hole.

24: The ballistic protective helmet according to claim 16, wherein the screwing means having the outer thread is screwed into the threaded sleeve.

25: The ballistic protective helmet according to claim 24, wherein the screwing means has a head that has a head width which is two to four times as large as an outer diameter of the outer thread.

26: The ballistic protective helmet according to claim 24, wherein the head has a thickness at a thinnest point that is greater than a wall thickness (W) of the threaded sleeve.

27: The ballistic protective helmet according to claim 16, wherein the threaded sleeve comprises a shoulder.

28: The ballistic protective helmet according to claim 27, wherein the threaded sleeve serves to attach at least one component to the protective helmet.

29: The ballistic protective helmet according to claim 28, wherein the threaded sleeve serves to attach at least one first and/or at least one second component, wherein the at least one first component is accommodated between the shell of the protective helmet and the shoulder of the threaded sleeve, and the at least one second component is accommodated at the threaded sleeve by means of the screwing means.

30: The ballistic protective helmet according to claim 29, wherein the at least one component is a neck guard, a visual protection, an ear protection and/or a click rail for releasably attaching at least one additional component.

31: The ballistic protective helmet according to claim 16, wherein a plurality of threaded sleeves are introduced into a plurality of blind holes.

32: The ballistic protective helmet according to claim 31, wherein at least a fraction of the plurality of blind holes are introduced symmetrical to each other into the shell.

Description

[0037] The invention is described below, without restricting the general idea of the invention, based on exemplary embodiments in reference to the drawings, whereby we expressly refer to the drawings with regard to the disclosure of all details according to the invention that are not explained in greater detail in the text. In the following:

[0038] FIG. 1 shows a schematic sectional view of a ballistic protective helmet,

[0039] FIG. 2 shows a schematic partially sectional view of a threaded sleeve,

[0040] FIG. 3 shows a schematic plan view of the threaded sleeve from FIG. 2,

[0041] FIG. 4 shows a schematic view of a screwing means,

[0042] FIG. 5 shows a plan view of the screwing means from FIG. 4 in a schematic form,

[0043] FIG. 6 shows a schematic sectional view of another ballistic protective helmet,

[0044] FIG. 7 shows a schematic partially sectional view of another threaded sleeve, and

[0045] FIG. 8 shows a schematic plan view of the threaded sleeve from FIG. 7.

[0046] In the drawings, the same or similar elements and/or parts are always provided with the same reference numbers; a reintroduction will therefore always be omitted.

[0047] FIG. 1 schematically portrays a sectional view of a ballistic protective helmet 10. The shell 21 of the ballistic protective helmet 10 is produced from a number of textile layers 11 connected in a connection matrix. A resin such as a polyester resin or an epoxide resin can serve as the connection matrix. The textile layers can also be glued to each other. To prevent delamination from other layers upon being shot with a projectile, the textile layers 11 that are arranged in the layered structure 12 are sewn with seams 17, 18. The seams 17, 18 substantially run radially from the inside to the outside or from the outside to the inside to connect the layers with each other in a radial direction. The seams 17, 18 can also be meandering, wherein part of the meandering shape represents a seam 17, 18 portrayed in the radial direction.

[0048] Sections 19, 20 are formed by the seams 17, 18 and are separated from each other by the seams 17, 18. The outside 14 and the inside 13 of the ballistic protective helmet 10 can each be provided with a protective layer 15, 16. This protective layer 15, 16 can be a textile layer 11 that is glued on or laminated after sewing the ballistic protective helmet 10 and correspondingly pressing the ballistic protective helmet 10 as this is described in EP 1 750 921 B1.

[0049] Two blind holes 22 are introduced into the shell 21 in this exemplary embodiment, wherein one blind hole 22 on the left side is not yet provided with a threaded sleeve 23 in the view in FIG. 1, and the other blind hole 22 on the right side is provided with a threaded sleeve 23. A screwing means 24 comprising a head 32 is introduced into the threaded sleeve 23. The length of the threaded sleeve 23 is adapted to the depth of the blind hole 22, in particular is substantially the same size, so that the threaded sleeve 23 is flush with the outside 14 of the ballistic protective helmet 10. The screwing means 24 is adapted in terms of length 37 to the length of the interior of the threaded sleeve 23 in order to enable a secure connection, i.e., a connection that does not independently come loose if at all possible.

[0050] In the event that no other component, or respectively no accessory part is to be attached at a corresponding site of a blind hole 22 of the ballistic protective helmet 10, it is sufficient for the use of the ballistic protective helmet when the screwing means 24 is completely screwed into the threaded sleeve 23. In the event that an accessory part such as a click rail is to be attached, corresponding bolts can be used that are somewhat longer in order to take into account the thickness of the accessory part at the site at which the bolt penetrates this accessory part. A click rail can for example serve to easily fasten other components in a releasably connectable manner such as an ear protection, a visual protection such as a ballistic visor, or the like.

[0051] FIG. 2 schematically shows a partial sectional view of a threaded sleeve 23. The cut is made along line A1-A1 from FIG. 3. FIG. 3 shows a plan view of the threaded sleeve 23 from FIG. 2.

[0052] The threaded sleeve 23 has an outer thread 25 that serves to be screwed into the blind hole 22. The outer thread 25 has a thread pitch h that for example is 1/7 to 3/7, preferably 2/7, of the outer diameter D.sub.A of the threaded sleeve 23. Moreover, the outer thread 25 has a flank angle between 30 and 70, preferably between 55 and 65. The length 27 of the outer thread 25 is adapted to the depth of the blind hole 22. In particular, the length 27 is somewhat more than one-half of the thickness of the shell 21 of the ballistic protective helmet 10. The profile depth I of the outer thread 25, i.e., the thread depth I, is 3/28 to 2/7, in particular 1/7 of the outer diameter D.sub.A of the threaded sleeve 23.

[0053] The wall thickness W, i.e., the core diameter D.sub.K of the outer thread 25 minus the outer diameter D.sub.AI of the inner thread 26 is preferably 1.0 mm in this exemplary embodiment.

[0054] The screwing means 24 has a bolt thread 39 that is adapted in terms of length 37 to the length of the inner thread 26 of the threaded sleeve 23. The outer diameter 34 of the thread of the screwing means 24 lies within the range of the outer diameter D.sub.AI of the inner thread 26 of the threaded sleeve 23. The bolt thread 39 can be rounded at the transition to the head 32 of the screwing means 24. A chamfer can also be provided here. The rounding, or respectively chamfer can be complementary in shape to a chamfer or rounding of the threaded sleeve 23 in the top region i.e., at the opening of the threaded sleeve 23 for screwing into the inner thread 26. This produces a good lock.

[0055] A relatively large head 32 of the screwing means 24 is provided to establish high ballistic suitability. The head 32 has a head width 33 that is at least twice as large as the outer diameter 34 of the outer thread 31 of the bolt thread 39 of the screwing means 24. Moreover the head 32 is sufficiently thick at the thinnest site, i.e., with a head thickness 35 that supports the ballistic properties of the protective helmet 10. In the middle of the head 32, the head thickness 35 is somewhat larger than at the edge.

[0056] FIG. 6 shows a schematic sectional view of another ballistic protective helmet 10. The structure of the shell 21 of the ballistic protective helmet 10 has already been explained in association with FIG. 1. For example, two blind holes 22 are introduced into the shell 21, wherein the blind hole 22 on the left side is not yet provided with a threaded sleeve 23 in the view in FIG. 6, and the opposing blind hole 22 on the right side is provided with a threaded sleeve 23 that comprises a shoulder 40. A screwing means 24 comprising a head 32 is introduced into the threaded sleeve 23.

[0057] Due to its design comprising a shoulder 40, the threaded sleeve 23 offers the possibility of accommodating first components in a first plane E1 (shown in a dashed line) as well as in a second plane E2 (shown in a dot-dashed line). The first components accommodated in the first plane E1 are accommodated between the shoulder 40 of the threaded sleeve 23 and an outer side of the shell 21 of the protective helmet 10. These first components are preferably those that remain permanently on the protective helmet 10, for example a neck guard, or the like. Such a first component is for example provided with holes through which the threaded sleeve 23 is guided. When screwing in the threaded sleeve 23 into the shell 21 of the protective helmet 10, a damped connection can also be realized between this first component and the outside of the shell 21 of the protective helmet 10. Second components can be accommodated in the second plane E2 with the assistance of the screwing means 24. Since the screwing means 24 enables a flexible installation of these second components, it is recommendable to provide such components as second components that are exchanged from time to time. In the event that no other component, or respectively no accessory part is to be attached at a corresponding site of a blind hole 22 of the ballistic protective helmet 10, it is sufficient for the use of the ballistic protective helmet when the screwing means 24 is completely screwed into the threaded sleeve 23.

[0058] FIG. 7 schematically shows a partial sectional view of the threaded sleeve 23 provided with a shoulder 40. The shoulder 40 is designed as a flange-like collar; it extends beyond an outer diameter D.sub.A of the threaded sleeve 23 in a radial direction that lies transverse, in particular perpendicular to a direction of the longitudinal extension (that corresponds to the screwing-in direction of the threaded sleeve 23) of the threaded sleeve 23. The shoulder is preferably designed integrally with the threaded sleeve 23.

[0059] FIG. 8 shows a plan view of the threaded sleeve 23 shown in FIG. 7. Since the shoulder 40 projects beyond the outer thread 25, it is invisible in the plan view of the top side of the threaded sleeve 23 and is therefore portrayed in a broken line. In the middle, the shoulder 40 leaves the passage open in the direction of the inner thread 26 of the threaded sleeve 23. With regard to the use of the screwing means 24, the threaded sleeve 23 that comprises the shoulder 40 therefore has the same functionality as the threaded sleeve 23 described above in conjunction with FIG. 1 to 3.

[0060] All named features, including those taken from the drawings alone as well as individual features that are disclosed in combination with other features, are considered, alone and in combination, to be essential for the invention. Embodiments according to the invention can be fulfilled by individual features or a combination of several features.

LIST OF REFERENCE SIGNS

[0061] 10 Protective helmet [0062] 11 Textile layer [0063] 12 Layered structure [0064] 13 Inside [0065] 14 Outside [0066] 15 Protective layer [0067] 16 Protective layer [0068] 17 Seam [0069] 18 Seam [0070] 19 Section [0071] 20 Section [0072] 21 Shell [0073] 22 Blind hole [0074] 23 Threaded sleeve [0075] 24 Screwing means [0076] 25 Outer thread [0077] 26 Inner thread [0078] 27 Length [0079] 31 Outer thread [0080] 32 Head [0081] 33 Head width [0082] 34 Outer diameter [0083] 35, 35 Head thickness [0084] 36 Thread length [0085] 37 Length [0086] 38 Curvature [0087] 39 Bolt thread [0088] 40 Shoulder [0089] E1 First plane [0090] E2 Second plane [0091] h Thread pitch [0092] I Thread depth [0093] Flank angle [0094] D.sub.A Outer diameter [0095] D.sub.K Core diameter [0096] D Outer diameter of the inner thread [0097] W Wall thickness