Patent Application
20250089838
The present invention relates to an inner system for a protective helmet, in particular a ballistic protective helmet or an impact protection helmet, and a corresponding protective helmet.
Protective helmets, especially ballistic helmets and impact protection helmets, are used in a wide range of police and military applications. They protect the wearer from head injuries caused by indirect or direct fire and splinters or from blunt head injuries caused by impact.
An inner system of a protective helmet is intended to ensure an optimum fit of the protective helmet. Inner systems for protective helmets are known from WO 2014/055722 A1 and WO 2015/065902 A1. It is of crucial importance for effective protection that the protective helmet always has a centered fit, regardless of the wearer's head size. This cannot be achieved with the existing inner systems. On the contrary, with inner systems as known from the prior art, a protective helmet often has a rear-heavy fit for medium-sized and smaller heads and the head is shifted forwards when the size is adjusted. As a result, the helmet sits unbalanced and insecure, so that an optimum protective effect cannot be achieved.
In the prior art, it is also known to adjust the size of a protective helmet using interchangeable pads. Some suppliers also offer helmets in different sizes. In practice, this has proven to be time-consuming and cost intensive. For example, in some regions protective helmets are assigned to a police vehicle and not to a police officer. If the vehicle is shared by police officers with different head sizes, then the helmet size would either have to be adjusted at the beginning of each police operation, which is time-consuming, or it would be necessary to carry a large number of helmets of different sizes. This has proven to be disadvantageous, so that it is an object of the present invention to provide a protective helmet which can be manufactured in a uniform size, which can be quickly adapted to the individual head size and head shape of a wearer and yet always provides an optimum fit, i.e. in particular a central fit.
However, the protective effect of such helmets is often limited by critical weak points. In the prior art, inner systems were attached to the helmet dome by means of bolts or screws engaging in the helmet dome. One finding underlying the present invention is that such bolts or screws engaging in the helmet dome reduce the protective effect of the helmet. Thus, a bolt or screw can become a secondary projectile when the helmet is hit, which can seriously injure the head. Furthermore, although the material of a bullet is a solid, it behaves like a liquid at high speeds and under the high pressures that occur on impact. On impact, the bullet can therefore “trickle through” even small gaps between the bolt/screw and the bore or thread in the dome and thus also seriously injure the head of the wearer directly.
A further object of the present invention is therefore to improve the protective effect of a protective helmet.
These objects are met by the subject matter of the independent claims.
One aspect of the invention relates to an inner system for a protective helmet, comprising:
An inner system according to the invention prevents the head from being pushed forward when the size is adjusted, as the headband is essentially circumferential. As a result, the wearer's head is essentially clamped from all sides when adjusting the size. This means that an ideal fit (Best Fit) with a centered fit (Best Balance) can be achieved, even if the helmet itself is only available in one size (One Size Fits All). Furthermore, no replacement pads are required to adjust the size. The size can also be adjusted very quickly (Quick Size System).
In the present context, the term “essentially” means that the headband is designed to be circumferential, with the exception of insignificant intermediate elements, such as padding elements or adjustment elements. As a rule, “substantially circumferential” therefore means circumferential over at least 65%, preferably 75%, of the circumference of an oval shape around which the headband is placed.
The headband preferably has a width of at least 1 cm, preferably at least 1.5 cm, more preferably at least 2 cm. This ensures a stable fit on the wearer's head.
The headband may comprise leather or imitation leather, or a synthetic material. The headband can be knitted, warp-knitted or woven, or comprise a non-woven material. For example, the headband may be covered with leather or synthetic leather and a core of the headband may comprise a flexible polymer (plastic). This combination is particularly comfortable and durable.
The adhesive elements can be spatially and physically separated from each other. It is possible for the adhesive elements to overlap, but gaps can also be formed between the adhesive elements. In addition, several adhesive elements (a plurality of adhesive elements) can also be designed as one integral adhesive element. The designations first, second and third adhesive element are only used to differentiate the corresponding area.
The protective helmet can, for example, be a ballistic protective helmet or an impact protection helmet. The described advantages of the invention have a particularly great effect on ballistic protective helmets and impact protection helmets. In particular, however, completely different problems arise with ballistic protective helmets and impact protection helmets than is the case, for example, with lighter helmets, such as bicycle helmets or helmets such as are usually worn on construction sites. In particular, balance is less important with lighter helmets than it is with a (in many cases heavier) ballistic or impact protection helmet. Concepts known from bicycle helmets or “construction site helmets” can therefore not be easily transferred to ballistic protective helmets and impact protection helmets.
An adhesive element is an element that can be attached to another object by means of an adhesive connection. An adhesive connection can be an adhesive bond, for example. The first, second or third adhesive element can be used to attach the inner system to a helmet dome via an adhesive connection.
The first, second, third or any other tab can be elongated. This enables optimum access to the adhesive element.
The first, second, third, or any further tab may be integrally formed with or attached to the headband, for example by means of a rivet, a seam, a hook and loop fastener, or by other means. Further, a first, second, third, or any other tab may be welded to the headband (e.g., by a plastic/ultrasonic welding process). All three embodiments (integral shaping, fastening or welding) fall under the term “connected”. Fastening makes it particularly easy to replace defective components. An integral or welded design, on the other hand, is particularly resistant and durable.
It is possible that none of the tabs comprises an engagement or reach-through element or a receptacle formed for an engagement or reach-through element. An engagement or reach-through element can comprise a bolt, a screw, a rivet or similar, in particular for engaging or reaching into or through a helmet dome.
This means that it is possible to attach the inner system to the helmet dome without an engagement or penetration element. This improves the safety of the protective helmet, as an engaging or penetrating element can become a secondary projectile when the helmet is hit, which can seriously injure the head.
In a first alternative, it is possible that the first adhesive element can be connected to the first tab in a detachable adhesive connection, wherein furthermore the second adhesive element can be connected to the second tab in a detachable adhesive connection and wherein furthermore the third adhesive element can be connected to the third tab in a detachable adhesive connection.
A detachable adhesive connection can include a hook-and-loop fastener, for example. This means that hard connecting elements such as rivets can also be avoided in the interior of a dome (i.e. not only as an engagement or penetrating element in or through a dome). This can improve the comfort of the protective helmet. A surprising finding of the inventors is that even with heavy protective helmets, a detachable adhesive connection can be sufficiently strong so that the protective helmet can remain on the wearer's head even under great stress, for example in the event of a stroke or under fire.
In a second alternative, the first adhesive element can be positively connected to the first tab,
It is possible that the circumference of the headband can be adjusted by an adjustment system, whereby the adjustment system is operated by a rotary knob. The adjustment system can, for example, comprise a gear and/or a toothed rack. This allows the user to easily adjust the circumference of the headband to the size of their own head. For example, this can be done blindly and with one hand, i.e. without having to remove the helmet. The adjustment system can be located at the back of the head. This enables easy access and effective adjustment.
It is possible that the first tab comprises a first connection point, wherein the headband is connected to the first tab at the first connection point; wherein the first tab further comprises a second connection point, wherein the first tab is adapted to be connected to the first adhesive member at the second connection point, and wherein the first connection point is spaced apart from the second connection point so that the headband can be floatingly attached to the first adhesive member via the first tab.
This arrangement relates to a particularly advantageous embodiment of the present invention. By spacing the first connection point and the second connection point, a floating attachment of the headband in the first adhesive element can be achieved. A similar connection is correspondingly possible for the second and third adhesive elements. In other words:
It is possible that the second tab comprises a third connection point, wherein the headband is connected to the second tab at the third connection point; wherein the second tab further comprises a fourth connection point, wherein the second tab is adapted to be connected to the second adhesive member at the fourth connection point, and wherein the third connection point is spaced from the fourth connection point so that the headband can be floatingly attached to the second adhesive member via the second tab.
It is possible that the third tab has a fifth connection point, wherein the headband is connected to the third tab at the fifth connection point; wherein the third tab further has a sixth connection point, wherein the third tab is adapted to be connected to the third adhesive member at the sixth connection point, and wherein the fifth connection point is spaced from the sixth connection point so that the headband can be floatingly attached to the third adhesive member via the third tab.
If further tabs and corresponding adhesive elements are present, it is of course possible, but not absolutely necessary, that these further tabs and the corresponding adhesive elements are also connected to each other in a floating manner via such an arrangement.
It should be noted that it is possible to connect the first tab directly or indirectly to the first adhesive element at the second connection point. For example, in the case of an indirect connection, a first intermediate element may be present, as described below. The same applies accordingly to the second tab and the third tab or other tabs.
The floating arrangement enables a shock-absorbing effect to be achieved, as a dome is movable in relation to the inner system, as the headband is attached to one or more of the adhesive elements in a floating manner. Furthermore, this achieves an optimum balance (Best Balance) in which the protective helmet is always held in a central position. For example, when the headband is shortened, the headband is pulled towards the wearer's head due to its floating attachment to one or more of the adhesive elements. This ensures that the head is not pulled in a certain direction, for example forwards, when the headband is shortened, which would negatively affect the balance.
It is possible for the first tab to be attached to a first intermediate element at the second connection point and for the first intermediate element to be attached to the first adhesive element in a detachable adhesive connection, so that the first tab can be attached indirectly to the first adhesive element in a detachable adhesive connection. Such an arrangement enables greater flexibility in the design of the inner system. In particular, this allows the inner system to be fastened relatively deep in a helmet dome and ensures a stable hold of the inner system on the spherical cap and on the head of the carrier.
The first tab can be sewn to the first intermediate element at the second connection point. Such a connection is advantageous because it does not include any hard elements that could injure the head of a wearer, yet still allows for a stable and durable connection. The second flap and/or the third flap can be sewn to the second and/or third intermediate element accordingly (namely to the fourth and/or sixth connection point).
Alternatively, it is possible for the first, second and/or third strap to be attached to the first, second and/or third intermediate element at the second, fourth and/or sixth connection point via rivets. This advantageously enables a rotatable connection, which can contribute to greater wearing comfort and better absorption of shocks.
The detachable adhesive connection of the first and/or the second and/or the third adhesive element may comprise a hook-and-loop fastener. The inventors have found that this is a particularly advantageous embodiment. Without limiting the subject matter of the invention, it is believed that a hook-and-loop fastener is highly resistant to lateral forces and is therefore particularly suitable. Although a hook-and-loop connection can relatively easily be released by pulling off an element in a direction perpendicular to the connection interface, such an application of force is very rare when using a protective helmet. If this occurs, then it can generally be assumed that it was deliberately applied by a wearer to adjust the inner system and was not caused unintentionally, for example by the impact of a projectile, which can lead to compressive forces perpendicular to the connection interface, but regularly not to pulling forces that would be required to release the hook-and-loop connection. Lateral impact of a projectile on an edge area of the protective helmet can result in transverse forces, but a hook-and-loop connection is very resistant to these transverse forces.
It is possible that the hook and loop fastener comprises a hook tape and a corresponding fleece tape (or felt tape). For example, the first, second or third adhesive element can comprise a hook tape and the first, second or third intermediate element a corresponding fleece tape. The arrangement can also be reversed. This achieves good adhesion and a flat profile with low weight.
It is also possible that the hook-and-loop connection includes a mushroom-head band and a corresponding velour tape, which enables stronger adhesion.
It is also possible that the hook and loop fastener comprises a mushroom-head strap and a corresponding fleece strap, which provides particularly good resistance to lateral forces.
For applications where the focus is on less mechanical stress and greater comfort, such as protective helmets that are used for longer periods of time in situations with a lower risk potential (e.g. during a peaceful demonstration), the hook-and-loop fastener can comprise extruded hooks or mushrooms on knitted fabric. For example, the first, second or third adhesive element can comprise hooks and the first, second or third intermediate element can comprise knitted fabric. This allows a particularly high level of comfort to be achieved.
The hook-and-loop fastener can include non-flammable materials or be impregnated in such a way that it is non-flammable. This ensures that the wearer's head is protected even in situations with an acute fire hazard.
The inner system can also include a head net. A head net ensures that the distance between the head and the dome above the head is not too large or too small, even when the size is adjusted (an example of Best Fit).
The head net can be attached to the headband. This has the advantage that the head net can be adjusted together with the headband and thus ensures an optimum fit for different head sizes.
The head net can, for example, be arranged in a central area and be completely or partially enclosed by the headband. For example, it is possible that at least a first head net fastening element is attached to the head net or that the head net is integrally formed with the first head net fastening element, wherein the first head net fastening element extends through an opening in the headband. This arrangement has the advantage that the headband can additionally be attached directly to the dome (see below) when the inner system is used in a protective helmet comprising a dome.
The first head net attachment element may comprise a first region and a second region, wherein a releasable adhesive connection may be created between the first and second regions. This releasable adhesive connection may comprise a hook-and-loop connection as described herein. This enables a connection to the headband without a connection to the dome, if this is desired. For example, a particularly high dynamic mobility of the inner system can be achieved in this way, which may be preferred for certain applications.
Of course, several head net fastening elements can be attached to the head net, for example a first, second, third and fourth head net fastening element. It is possible for several head net fastening elements to pass through the same or different openings in the headband.
The head net can also be attached to at least one of the first, second, third or fourth tabs. This has the advantage that the head net can move together with the strap and thus ensures optimum support even during dynamic movement sequences.
The first adhesive element and the corresponding first strap can be arranged on the left side of a protective helmet. The second adhesive element and the corresponding second strap can be designed to be positioned at the rear of a protective helmet. The third adhesive element and the corresponding third strap can be designed for arrangement on a right-hand side of a protective helmet. The fourth adhesive element and the corresponding fourth strap can be designed to be positioned at the front of a protective helmet. It is particularly advantageous if the head net is attached to the second strap (rear) and the fourth strap (front). This ensures the best stability and still allows the head net to move with the size adjustment.
The head net can be at least partially knitted, warp-knitted or woven, or comprise a non-woven material. The head net preferably comprises a plurality of openings so that air can circulate between the wearer's head and the head net.
The head net can comprise a spacer fabric. A spacer fabric is a three-dimensional knitted fabric in which two opposing surfaces are connected by spacer connecting elements. This makes the padding and ventilation particularly effective.
The head net can comprise at least one flat band. A flat band is a textile whose width is considerably greater than its thickness. Preferably, a flat band is at least three times as wide as it is thick, more preferably at least five times as wide as it is thick, most preferably at least ten times as wide as it is thick. This has the advantage that the positioning of the head is improved by the flat band, as this gives the head net additional rigidity.
The head net may comprise at least a first and a second flat band, wherein the first flat band and the second flat band are arranged substantially at right angles to each other. In the present case, substantially at right angles means that two intersecting edges of the first and second flat bands form an angle of between 45° and 135°, more preferably 60° and 120°.
This improves the positioning of the head along two axes, namely along a first longitudinal axis of the first flat belt and a second longitudinal axis of the second flat belt.
The first longitudinal axis can essentially run from front to back. The second longitudinal axis can run essentially from a right side to a left side. Essentially means within the scope of the variations customary in the art for soft components of inner systems for protective helmets, which comprise variations of about 20°.
The first and or second band can have a width of at least 1 cm and at most 6 cm, preferably at least 1.5 cm and at most 5.5 cm, most preferably at least 2 cm and at most 4 cm. The greater the width, the greater the rigidity of the head net. However, excessive rigidity can also be undesirable, as this can reduce the accuracy of fit.
The invention further relates to a protective helmet comprising: (a) a dome, (b) an inner system as described herein, (c) wherein each of the adhesive elements of the inner system is attached to the dome.
The protective helmet therefore benefits from the advantages of the inner system described above. In particular, it offers good balance (Best Balance), a good fit (Best Fit), can be adjusted quickly (Quick Size) and can be produced in a single size and still be used by a variety of people of different head sizes (One Size Fits All).
The protective helmet can be a ballistic protective helmet or an impact protection helmet. Therefore, the dome can be designed to be bullet-resistant or impact-resistant. The term “bullet-resistant” refers to an inhibiting effect against the impact of projectiles or splinters (e.g. shrapnel). The dome can also provide protection against slashing and stabbing weapons.
It is possible for each of the adhesive elements to be attached to the dome without an element engaging or penetrating the dome. This prevents an engaging or penetrating element from developing into a secondary projectile under fire or injuring the head when struck.
Each of the adhesive elements can be attached to the dome via an adhesive connection. As described, this improves the protection of the head against injuries.
The first, second, third or fourth strap can be Y-shaped, i.e. have three connection points. It is possible for the first, second, third or fourth strap to have one connection point to the headband and two connection points to the corresponding adhesive element (also indirectly via an intermediate element). The Y-shaped design has the advantage of creating a torsionally stable connection. As a result, the inner system rotates directly with the rotational movements of the head and does not “slip”. This also serves to improve the protective effect by providing a better hold.
The first adhesive element and the corresponding first strap can be arranged on the left side of the protective helmet. The second adhesive element and the corresponding second strap can be arranged at the back of the protective helmet. The third adhesive element and the corresponding third strap can be arranged on a right-hand side of the protective helmet. The fourth adhesive element and the corresponding fourth strap can be arranged at the front of the protective helmet. It is particularly advantageous if the second strap (rear) and the fourth strap (front) are Y-shaped. This secures the helmet particularly effectively against lateral upward and downward movement towards the head position.
If the inner system comprises a head net, the head net can also be attached directly to the dome via at least one first head net fastening element, where “directly” in this context means that the first (and possibly second, third, fourth, etc.) head net fastening element is attached directly to the dome (i.e. not only via intervening objects such as the headband). The headband is not a head net fastening element. This direct attachment to the dome has the advantage that the head net does not move upwards in volume when the headband is reduced all the way round. This results in a better fit and a more stable fit of the protective helmet, which is maintained when the size is adjusted.
The head net can be attached to a left-hand side of the dome via a first head net fastening element and attached to a right-hand side of the dome via a second head net fastening element. The advantage of this attachment is that it is very stable.
The head net can also be attached to a left side of the dome via a third head net fastening element and attached to a right side of the dome via a fourth head net fastening element. In this arrangement, the first head net fastening element can be arranged at the left rear, the second head net fastening element at the right rear, the third head net fastening element at the left front and the fourth head net fastening element at the right front of the dome.
This type of attachment is very torsionally rigid, i.e. stable, even when the head rotates.
At least one of the first, second, third and fourth head net fastening elements can be passed through—respectively—a first, second, third and fourth opening, for example each in the form of a gap, in the headband. For example, the first and second head net fastening elements can be passed through a first and second gap in the headband, respectively.
This has the advantage of simple and space-saving guidance of the head net fastening element(s), even with a complex inner system.
As described above, it is particularly advantageous if the head net is attached to the second flap (rear) and the fourth flap (front). This has the unexpected synergistic effect of further stabilizing the inner system as a whole without negatively affecting the adaptability to different head sizes even further.
The protective helmet can also include a shock absorber ring. The damping ring may cover a part of the headband on an inner side, i.e. the side facing the head. It is possible that the damping ring only covers a part of the headband. Preferably, the damper ring covers at least 30%, more preferably at least 50%, most preferably at least 60% of the headband. The damper ring is therefore not necessarily circumferential. However, the cushioning ring can be circumferential in order to offer maximum comfort. The damping ring significantly improves the wearing comfort and protective effect of the protective helmet.
It is possible that the damper ring is attached to the headband. This has the advantage that the headband is always (at least partially) covered by the shock absorber ring, even when the headband is adjusted. The damping ring can comprise a foam material. The cushioning ring can, for example, comprise ethylene-vinyl acetate copolymers, EVA. This offers advantageous damping properties and low abrasion.
The damper ring can have a large number of ventilation cams and protrusions, which are arranged alternately. This improves the ventilation of the head and thus the wearing comfort.
The protective helmet may further comprise a harness system, wherein the harness system is attached to the dome via a detachable adhesive connection. A further advantage of the present invention is that the harness system can be designed independently of the inner system. In other words, the harness system is basically attached to the dome at different points than the inner system. This advantageously increases the adjustment options for the wearer. The detachable adhesive connection of the system improves the protection of the head against injuries, as described.
The harness system can include:
The left/right, top/bottom, front/rear positions are always described from the wearer's perspective and not from the perspective of a third party looking at the helmet from the outside.
This design enables a stable fit of the protective helmet and versatile adjustment options for the wearer.
It is possible that each of the described straps can be adjusted separately in length.
It is also possible for the harness system to comprise a Y-shaped harness in which a strap is attached to the rear area of the helmet dome, which splits into a left and right strap towards the front area of the helmet dome.
A fastener can be attached in the chin area. To increase comfort and prevent the fastener from rubbing against the skin, a pad, such as a piece of leather, can be attached under the fastener.
A pad, for example a piece of leather, can also be attached under the left and right front straps to further increase comfort.
It is also possible that a pad, for example a piece of leather, is fitted under the rotary knob of the adjustment system, which is used to adjust the circumference of the headband.
Each of the aforementioned padding elements, in particular a left upper padding element, a right upper padding element, a rear and/or a front padding element, can comprise a ventilation channel. This has the advantage of improving ventilation and thus wearing comfort.
The dome can include titanium. Titanium provides excellent protection while being lightweight. The applicant has succeeded in optimizing the manufacturing process for domes comprising titanium to such an extent that they are suitable for practical use.
It is also possible for the dome to comprise PE-titanium, aramid-titanium, PE-carbon-aramid or similar hybrid configurations. PE stands for polyethylene. These enable a lower weight.
The inner system 10 comprises:
The circumference of the headband 11 is adjusted by an adjustment system (see
The protective helmet offers excellent balance and outstanding protection against projectiles as well as slashing and stabbing weapons. It can be manufactured in just one size and still fits the vast majority of adult wearers. The size can be adjusted very quickly and comfortably thanks to the adjustable headband.
In the example shown, all three adhesive elements 12 are glued into the spherical cap 16.
The straps 14 are attached to the headband 11 via rivets. The first tab 14a is attached to the headband 11 via a rivet 21. However, it is also possible to make the tabs integral with the headband 11 or to connect them to the headband 11 via a seam, for example.
The tabs 14 are elongated and thus allow a certain distance between the adhesive elements and the headband 11.
The inner system 10 can be attached to the helmet dome 16 without an engagement or reach-through element and therefore offers optimum head protection.
In this example, the first adhesive element 12a can be connected to the first tab 14a in a detachable adhesive connection, furthermore, the second adhesive element 12b can be connected to the second tab 14b in a releasable adhesive connection, furthermore, the third adhesive element 12c can be connected to the third tab 14c in a releasable adhesive connection.
However, it is also possible for the adhesive element to be connected to the tabs in a form-fit, for example via rivets.
The first tab 14a has a first connection point 31, wherein the headband 11 is connected to the first tab 14a at the first connection point 31; wherein the first tab 14a further has a second connection point 32, wherein the first tab 14a is adapted to be connected to the first adhesive member 12a at the second connection point 32, and wherein the first connection point 31 is spaced apart from the second connection point 32 so that the headband 11 can be floatingly attached to the first adhesive member 12a via the first tab 14a. In this example, the distance between the first connection point 31 and the second connection point 32 is approximately 4 cm. The second strap 14b and the third strap are correspondingly connected to the second adhesive element 12b and the third adhesive element 12c, respectively.
The detachable adhesive connections are indirect connections. Thus, the first tab 14a is attached to a first intermediate element 13a at the second connection point 32 and the first intermediate element 13a is attached to the first adhesive element 12a in a detachable adhesive connection. In this example, the first tab 14a is attached to the first intermediate element 13a at the second connection point 32 via a rivet 22. The same applies to the second 14b and third 14c tabs.
The fourth strap 14d is arranged in a front area of the protective helmet 1 and is Y-shaped. The fourth strap 14d is connected to the headband 11 at a seventh connection point (not shown). The fourth strap 14d is attached to the fourth intermediate element 13d at an eighth connection point 33 and a ninth connection point 34. The fourth intermediate element 13d is in turn attached to the fourth adhesive element 12d via a detachable adhesive connection.
Alternatively, it is possible to attach the tabs 14 to the intermediate elements 13 via a seam connection.
The detachable adhesive connection of the first adhesive element 12a to the first intermediate element 13a comprises a hook-and-loop fastener. The first adhesive element 12a has a hook tape, while the first intermediate element 13a has a corresponding loop tape. The arrangement can also be reversed. This has the advantage that the user can easily keep the components apart during assembly. The safety of not hooking anything incorrectly can also be ensured or further improved, for example, by a defined shape of the hook and loop elements.
The inner system 10 also has a head net 17, which has a large number of openings 18. The head net 17 is knitted. The head net 17 is stretched between an upper left upholstery element 19a and an upper right upholstery element 19b. The left and right upper padding elements 19a and 19b each have two ventilation channels. These are formed by a different thickness/leveling of the left/right upholstery element 19a, 19b. This has the advantage of improving ventilation and thus wearing comfort.
The protective helmet of
The adjustment system by means of which the circumference of the headband 11 can be adjusted is also shown. The adjustment system comprises a rotary knob 51. In this example, the headband 11 is essentially circumferential. In this example, the headband 11 is circumferential, with the exception of the adjustment mechanism. The headband 11 runs through the adjustment mechanism.
As can be seen in
The protective helmet 1 also has a front padding element 15. In the embodiment example of
The protective helmet 1 of
In this example, the detachable connection for opening the harness system is effected by a fastener 46, in this case: a buckle 46. The length of the left rear strap 42, the right rear strap 43, the left front strap 44, and the right front strap 45 can be adjusted. This ensures an optimum fit. In this example, the length can be adjusted using a buckle 48 in each case.
The first adhesive element 12a and the corresponding first strap 14a are arranged on a left side 91 of the protective helmet 1. The second adhesive element 12b and the corresponding second strap 14b are arranged at the rear 92 of the hard hat 1. The third adhesive element 12c and the corresponding third strap 14c are arranged on a right-hand side 93 of the protective helmet 1. A fourth adhesive element and a corresponding fourth strap are arranged at the front 94 of the protective helmet 1 (see
The inner system 10 has a head net 17. The head net 17 is attached directly to the dome 16 via a first head net fastening element 81 and a second head net fastening element 82. In this example, the fastening comprises a hook-and-loop fastener. “Directly” in this context means that the first 81 and second 82 head net fastening elements are fastened directly to the dome 16 (i.e. not only via intervening objects such as the headband 11). The headband 11 is not a head net fastening element.
The head net 17 is attached to a left side 91 of the dome 16 via a first head net fastening element 81 and attached to a right side 93 of the dome 16 via a second head net fastening element 82 (see
In this example, the head net 17 is additionally fastened to the pad 15 and the headband 11 via a third head net fastening element 83 on the left side 91 of the protective helmet 1. In this example, the head net 17 is additionally attached to the pad 15 and the headband 11 via a fourth head net attachment element 84 on the right side 93 of the protective helmet 1 (see
However, it is also possible, without changing the third 83 and fourth 84 fastening elements, that the head net 17 is fastened directly to the dome 16 on a left side 91 and is fastened directly to the dome 16 via a fourth head net fastening element 84 on a right side 93.
The head net 17 is attached to the second tab 14b (rear 92) via a suspension 85 (see
The harness system 41 is connected to the dome 16 via a detachable adhesive connection, in this example a hook-and-loop connection. The harness system 41 is connected to the dome 16 separately from the inner system 11. However, it is also possible that the harness system 41 is connected to the dome 16 at one or more identical points as the inner system 11.
The fitbox 54 also has a large number of drainage holes 55. In this example, there are seven drainage holes 55, of which only two have been provided with the reference sign 55 as an example. During intensive use, dirt often collects inside the fitbox 54. In order to prevent damage or blockage of the length adjustment mechanism, the fitbox 54 can be cleaned with water or cleaning agents. The drainage holes 55 are used to drain the water and/or cleaning agent. This improves the service life and reliability of the fitbox 54 and the length adjustment mechanism it contains.
The left and right padding elements 19a, 19b are attached to the headband 11 with a hook-and-loop fastener. However, another type of fastening is possible. Adjusting the length of the headband 11 therefore also affects the left and right padding elements 19a, 19b. The harness system 41 described above is also indirectly connected to the headband 11. Thus, the rear left strap 42 and the rear right strap 43 are guided around the fitbox 54 via retaining tabs 56a, 56b.
The inner system 10 has a head net 17. The head net 17 is attached directly to the dome 16 via a first head net fastening element 81 on a left side 91 and a second head net fastening element 82 on a right side 93. In this example, the head net 17 is additionally attached directly to the dome 16 via a third head net attachment element 83 on a left side 91 and is attached directly to the dome 16 via a fourth head net attachment element 84 on a right side 93.
In this example, the attachment comprises a hook and loop fastener. “Directly” in this context means that the first 81, second 82, third 83 and fourth 84 head net fastening elements are attached directly to the dome 16 (i.e. not just via intervening objects such as the headband 11). The headband 11 is not a head net fastening element.
The first 81, second 82, third 83, and fourth 84 head net fastening element can, for example—respectively—pass through a first, second, third, fourth opening, in the form of a gap, in the headband 11.
If the headband is shortened (as indicated by the arrows), the headband also pushes the head downwards from above and upwards from below and therefore remains centered in the vertical direction. This improves the protective effect of the protective helmet 1.
The shock absorber ring 70 significantly improves the wearing comfort and increases the protective effect of the protective helmet 1. The shock absorber ring 70 is attached to the headband 11 so that it is always ensured that the shock absorber ring 70 covers the headband 11 even when the helmet is adjusted by adjusting the length of the headband. In this example, the fastening comprises a hook-and-loop fastener.
The inner system 10 comprises:
The inner system comprises a head net 17, which can be attached in various ways to the headband 11 and/or to a dome of a protective helmet.
The head net comprises a flat band 111, 112. In this example, the head net comprises a first 111 and a second 112 flat band, wherein the first flat band 111 and the second flat band 112 are arranged substantially perpendicular to each other. In this example, two intersecting edges of the first 111 and second 112 flat bands form an angle a 119 of about 85° to 95°. However, the angle a 119 can also be between 45° and 135°, for example.
The flat bands 111, 112 comprise a textile whose width 117, 118 is considerably greater than its thickness. In this case, the first flat band 111 has a first width 117 of approximately 2 cm. In this case, the second flat band 112 comprises a second width 118 of about 2 cm. The first 111 and second 112 flat bands are only 1-2 mm thick. The flat bands 111, 112 are arranged in the apex region.
The first flat band 111 comprises a first longitudinal axis 115. The second flat band 112 comprises a second longitudinal axis 116. The first 111 and second 112 flat bands improve positioning of the head along these two longitudinal axes 115, 116. In particular, the flat bands 111, 112 angle centrally so that positioning is thereby improved.
The first longitudinal axis 115 runs substantially from a front 94 to a rear 92. The second longitudinal axis 116 runs substantially from a right side 93 to a left side 91. Substantially means within the scope of variations customary in the art for soft components of inner systems for protective helmets, comprising variations of about 20°.
The first 111 and second 112 flat strips intersect at a central intersection 120.
Due to the weight of the dome, the dome tends to orient itself towards the front 94 via the lever arrangement of the side tabs 14a, 14c. The straps 14a to 14d attached to the headband 11 ensure that the helmet dome is always positioned centrally on all sides during any size adjustment. This is particularly important if the inner system is attached to the helmet dome via adhesive elements, as this type of attachment requires particularly good centering. Only a few possible embodiments of the invention have been described above by way of example. It should be understood that these exemplary embodiments can be modified and combined with each other in a variety of ways if they are compatible, and that certain features can be omitted if they appear to be dispensable.
The scope of protection is determined by the patent claims and is not limited by the embodiments.
| Number | Date | Country | Kind |
|---|---|---|---|
| 22151768.3 | Jan 2022 | EP | regional |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2023/050994 | 1/17/2023 | WO |
