DE202021001122U1 - Visor for a ballistic protective helmet - Google Patents

Abstract

Visor for a ballistic protective helmet, comprising:
a visor;
a splinter protection lip arranged in an edge region of the visor, the splinter protection lip at least partially enclosing an edge of the visor.

Description

Field of technology

The present invention relates to a visor for a ballistic protective helmet.

State of the art

A ballistic protective helmet protects the wearer's head from direct fire with firearms, but also from splinters and the effects of cutting and stabbing weapons as well as from hits with hard objects. Such helmets are therefore worn by special forces and increasingly also by patrol officers who arrive at the scene first (so-called “first responders”) for their own protection.

The basic protective effect of a protective helmet consists in stopping an impacting projectile (e.g. a projectile or a splinter) and preventing the projectile from penetrating the head of the person wearing the protective helmet. Another important aspect of the protective effect is to keep the effect of the kinetic energy of the projectile on the wearer's head as low as possible.

To protect the face, especially the eyes, ballistic protective helmets are often equipped with visors. These can be permanently or detachably attached to the safety helmet and can usually be removed from the field of vision by rotating, e.g. if there is currently no hazardous situation. The protective effect of such visors is based on visor discs, which are able to dissipate the energy of impacting projectiles, splinters or blows and prevent the impact of the projectiles, splinters or blows on the wearer's face or at least the risk of injury to a ) to reduce the threatening minimum.

However, the protective effect of visors for ballistic protective helmets usually decreases towards the edges. In particular, hits by projectiles, splinters or blows in an edge region of the visor can cause splintering or breaking of one or more visor panes, which in turn means a risk of injury for the wearer of the ballistic protective helmet. The bullet resistance of visors known from the prior art also generally decreases towards the edge.

Summary of the invention

The present invention is therefore based on the object of providing a visor for a ballistic protective helmet which minimizes the risk of injury, especially in the event of impacts in the edge area, e.g. from projectiles, splinters or blows.

This object is achieved according to claim 1 of the present invention by a visor for a ballistic protective helmet, comprising a visor and a splinter protection lip arranged in an edge region of the visor, the splinter protection lip at least partially enclosing an edge of the visor.

The splinter protection lip according to the invention achieves a number of advantageous effects. First of all, the protection against splinters should be mentioned here. The splinter protection lip encloses the edge (which can e.g. be milled) of the visor, which can consist of at least one but also of several layers that are connected to one another. When bombarded with projectiles or splinters or through blows, complex processes such as breakage, deformation, separation occur. As a rule, splinters form. With increasing proximity to the edge, the following mechanisms can lead to fragmentation: (i.) By separating individual visors, fragments that have formed near the hit can escape and lead to injury or even death of the wearer. The splinter protection lip according to the claims avoids such splintering or at least reduces its effect. (ii.) As a result of the hit near the edge, splinters form directly on the edge of the sight, which as secondary projectiles can lead to injury or even death of the wearer. The splinter protection lip according to the claims prevents or at least greatly restricts the escape of splinters and the exit of splinters that form directly on the visor edge as secondary projectiles.

The splinter protection lip according to the invention also provides protection against breakage. Shooting with projectiles or the action of splinters or blows can namely act on the visor such forces that lead to breakage or partial breakage of the visor screen by kinking or shearing it off. This process also produces splinters which, as secondary projectiles, can lead to injury or even death of the wearer. The splinter protection lip, with its high elongation at break and sufficient strength, dampens this behavior and, in the best case, prevents it from escaping as secondary projectiles and, in the worst case, prevents bullet penetration.

Another advantage of the splinter protection lip according to the claims is its flame-retardant effect. According to the standards, the products to be tested (visor, helmet, etc.) are exposed to a flame with a temperature of 800 +/- 50 ° C exposed for 12 seconds. After exposure to the flame, the tested product may burn / afterglow or drip off for a maximum of 2 seconds. The splinter protection lip according to the claims improves the flame-retardant properties of the visor in comparison to a visor without a splinter protection lip, since the visor edge without a splinter protection lip is generally susceptible to flame, i.e. if the test flame is exposed, the visor disc burns for an inadmissibly long time at the point of exposure to the flame.

However, if splinters are formed in the edge area, the splinter protection lip, because it surrounds the visor, reduces the probability of splinters coming off and flying around. In any case, the kinetic energy of broken fragments is significantly reduced and thus the potential for injury is reduced.

The visor can be a ballistic visor, a splinter protection visor and / or an impact protection visor. Ballistic protective helmets are advantageously equipped with visors of this type in order to also protect the field of vision of a wearer from projectiles, splinters or blows. As already explained, the splinter protection lip according to the invention prevents the formation of splinters in the edge area of the visor and thus increases the protective effect of the visor.

The visor can additionally have a visor carrier which is set up to connect the visor to a ballistic protective helmet. In this way, the visor can be removed or permanently attached to the protective helmet. In a further embodiment, the visor carrier is also rotatably mounted on the protective helmet so that the visor can be rotated out of the field of vision, e.g. outside of a specific dangerous situation.

The visor can have a plurality of layers. This increases the protective effect of the visor. The layers can be individual panes of different materials, such as glass, ceramics and plastics such as PMMA and PC, which are connected to one another.

The layers can be connected to one another by means of an adhesive. It is advantageously an elastic adhesive which enables a shearing movement of the layers relative to one another in order to absorb part of the kinetic energy of a hit by a projectile, a splinter or an impact. The adhesive is preferably a film adhesive, more preferably based on polyurethane. Adhesives that cure under UV light are also conceivable. Basically, the adhesive should have a high elongation at break.

The splinter protection lip can be made of a flame-retardant material. This prevents the splinter protection lip from burning off or scorching due to the thermal energy generated by a hit or when it comes into contact with burning substances. In one embodiment, the splinter protection lip is made of polyurethane, the flame-retardant effect of which has been increased by an additive.

The splinter protection lip can be made of polyurethane. Polyurethane has proven to be particularly advantageous because it fulfills two basic requirements: Firstly, polyurethane is sufficiently strong to prevent splinters that have formed as a result of projectiles, splinters or blows from penetrating the splinter protection lip. On the other hand, polyurethane has a high elongation at break in order to support the conversion of the kinetic energy of an impacting projectile, splinter or impact into a deformation of the visor.

The splinter protection lip is preferably glued to the visor. In this way, the formation of splinters can be prevented or at least reduced even more effectively. This effect is reinforced by the use of adhesive with a high elongation at break.

The splinter protection lip can have a wall thickness of 1 mm to 4 mm. In this area, the splinter protection lip optimally fulfills the two requirements already mentioned: firstly, the loss of splinters as a secondary projectile is effectively prevented or at least reduced, and secondly, breaking by bending and shearing the visor slide is effectively prevented or at least reduced.

The visor can have an outside and an opposite inside and the splinter protection lip can cover at least part of the outside, at least part of the inside and at least part of an edge of the visor. In this way, the discharge of splinters on all sides in the edge area of the visor is effectively prevented or at least mitigated.

The splinter protection lip can have a U-shaped or L-shaped cross section. These cross-sections have proven to be particularly advantageous in order to prevent or at least reduce the loss of splinters.

The splinter protection lip can cover an edge area of 1 mm to 20 mm of the outside and / or the inside of the visor, in each case measured from the edge of the visor. In this area, the splinter protection lip already fulfills this mentioned requirements, namely protection against splinters, break protection and flame protection in an optimal way.

The splinter protection lip can enclose more than 25% of the circumferential edge of the visor. More preferably, the splinter protection lip can enclose more than 50% of the circumferential edge of the visor, even more preferably the splinter protection lip can enclose more than 75% of the circumferential edge of the visor. The splinter protection lip and the visor carrier can together enclose more than 90% of the circumferential edge of the visor. In this way, specific edge areas of the visor can be protected by the splinter protection lip in a very targeted manner or essentially the entire circumferential edge area can be protected by the splinter protection lip.

Another aspect of the present invention relates to a ballistic protective helmet having a visor as described herein.

Figure list

• 1A: Eine Vorderansicht eines Ausführungsbeispiels eines erfindungsgemäßen Visiers;
• 1B: Einen Schnitt entlang der in der 1A gezeigten Ebene A-A;
• 1C: Eine perspektivische Ansicht des Ausführungsbeispiels aus den 1A und 1B.

The present invention is explained below on the basis of preferred exemplary embodiments with reference to the drawings. The drawing show:

• 1A : A front view of an embodiment of a visor according to the invention;
• 1B : Make a cut along the in the 1A level AA shown;
• 1C : A perspective view of the embodiment from FIG 1A and 1B .

Detailed description of preferred exemplary embodiments

An embodiment of a visor according to the invention 1 for a ballistic protective helmet (not shown in the figures) is in the 1A , 1B and 1C shown, the 1A represents a front view showing 1B a section along the in the 1A level AA and the 1C a perspective view.

The visor 1 has a visor 2 and one in an edge area of the visor 2 arranged splinter protection lip 3 on, with the splinter protection lip 3 an edge 4th the visor 2 at least partially. The visor 1 is basically suitable for a ballistic protective helmet, such as that worn by the police or special task forces. Also a military use of the protective helmet or the visor according to the invention 1 is conceivable.

By the visor 1 it can be a ballistic visor, a splinter protection visor and / or an impact protection visor. Ballistic visors protect the field of vision of a wearer from projectiles from firearms, slingshots, bows, etc., splinter protection visors from splinters and impact protection visors from impacts, including the impact of objects such as stones or glass bottles. Visors can in principle also have a combination of the properties mentioned, that is to say, for example, protect against projectiles, splinters and blows or protect against splinters and blows, etc. The protective effect is provided by the visor 2 in connection with the splinter protection lip 3 achieved. By the visor 2 it can basically be a single disk of suitable thickness or several layers of disks.

In the embodiment of 1A , 1B and 1C the visor has a single visor disc 2 on. As already mentioned, in other exemplary embodiments the visor can be constructed in multiple layers. As materials for the visor 2 For example, polymethyl methacrylate (PMMA) and polycarbonate (PC) are possible. In the case of a multilayer structure, the layers can be connected to one another by means of an adhesive.

A wide variety of materials can be used for the visor, such as glass, ceramics and plastics such as polymethyl methacrylate (PMMA) and polycarbonate (PC). Depending on the protection class, the lens can consist of just one material or a combination of the materials mentioned in which the visor is built up in layers. The individual layers are usually (preferably) connected by gluing, but mechanical connections such as screwing or a frame that holds the panes together are also conceivable.

In the embodiment of 1A , 1B and 1C points the visor 1 a visor carrier 5 on which is set up, the visor 1 to connect with a ballistic protective helmet (not shown in the figures). This way the visor can 1 removable or permanently attached to the safety helmet. The sight carrier has two bearings on the sides 10a and 10b on so that the visor 1 to those with the reference number 11 can rotate marked axis of rotation.

The splinter protection lip 3 is in the embodiment of 1A , 1B and 1C made of polyurethane. Specifically, it is a material that is specially optimized for flame-retardant applications. In principle, other materials are also conceivable as long as they have adequate flame retardancy, fracture toughness and strength.

The splinter protection lip 3 is glued to the visor. In the embodiment of 1A , 1B and 1C becomes an adhesive 12th based on polyurethane used. In principle, other adhesives can also be used, such as adhesives that cure under UV light. The prerequisite for this is that the adhesive has similar characteristics such as flexibility, elongation at break and strength as the splinter protection lip 3 self.

The splinter protection lip 3 has in the embodiment of 1A , 1B and 1C a wall thickness 6th from 2.2 mm to (see 1B) . In the 1B it is also shown that the splinter protection lip has a U-shaped cross section and thus the end face 9 the visor 2 , as well as their front 7th and back 8th at least partially covered. Other cross-sections are conceivable. For example, the cross section could be L-shaped so that the splinter protection lip 1 the front 9 and the outside 7th or the inside 8th the visor 2 covers.

In the embodiment of 1A , 1B and 1C grips the splinter protection lip 3 the circumferential edge of the visor 2 together with the visor carrier 5 almost completely. The splinter protection lip 3 alone, it encloses more than half of the circumferential edge, namely the sides and the underside, while the visor carrier encloses the upper side of the visor disc (see 1A) .

Claims (15)

Visor for a ballistic protective helmet, comprising: a visor; a splinter protection lip arranged in an edge region of the visor, the splinter protection lip at least partially enclosing an edge of the visor. Set your sights on Claim 1 , the visor being a ballistic visor, a splinter protection visor and / or an impact protection visor. Set your sights on one of the Claims 1 - 2 , additionally comprising: a visor carrier which is set up to connect the visor to a ballistic protective helmet. Set your sights on one of the Claims 1 - 3 wherein the visor has a plurality of layers. Set your sights on Claim 4 , wherein the layers are connected to one another by means of an adhesive. Set your sights on one of the Claims 1 - 5 , wherein the splinter protection lip is made of a flame-retardant material. Set your sights on one of the Claims 1 - 6th , whereby the splinter protection lip is made of polyurethane. Set your sights on one of the Claims 1 - 7th , whereby the splinter protection lip is glued to the visor. Set your sights on one of the Claims 1 - 8th , the splinter protection lip having a wall thickness of 1 mm to 4 mm. Set your sights on one of the Claims 1 - 9 wherein the visor has an outside and an opposite inside and the splinter protection lip covers at least part of the outside, at least part of the inside and at least part of an edge of the visor. Set your sights on one of the Claims 1 - 10 , wherein the splinter protection lip has a U-shaped or L-shaped cross section. Set your sights on one of the Claims 10 - 11 , wherein the splinter protection lip covers an edge area of 1 mm to 20 mm of the outside and / or the inside of the visor, in each case measured from the edge of the visor. Set your sights on one of the Claims 1 - 12th , whereby the splinter protection lip surrounds more than 25% of the circumferential edge of the visor. Set your sights on one of the Claims 3 - 13th , whereby the splinter protection lip and the visor carrier together enclose more than 90% of the circumferential edge of the visor. Ballistic protective helmet having a visor according to one of the Claims 1 - 14th .

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