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EP 3 854 246 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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07.02.2024 Bulletin 2024/06 |
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Date of filing: 29.12.2020 |
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International Patent Classification (IPC):
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PROTECTIVE HELMET
SCHUTZHELM
CASQUE DE PROTECTION
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Designated Contracting States: |
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AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
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Priority: |
24.01.2020 IT 202000001420
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Date of publication of application: |
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28.07.2021 Bulletin 2021/30 |
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Proprietor: Dainese S.p.A. |
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36064 Colceresa (Vicenza) (IT) |
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Inventor: |
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- MONTAGNER, Renato
36064 Colceresa (Vicenza) (IT)
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Representative: Manfrin, Marta et al |
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Società Italiana Brevetti S.p.A.
Stradone San Fermo 21 sc. B 37121 Verona (VR) 37121 Verona (VR) (IT) |
(56) |
References cited: :
EP-A1- 2 555 645
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US-A1- 2012 005 810
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Note: Within nine months from the publication of the mention of the grant of the European
patent, any person may give notice to the European Patent Office of opposition to
the European patent
granted. Notice of opposition shall be filed in a written reasoned statement. It shall
not be deemed to
have been filed until the opposition fee has been paid. (Art. 99(1) European Patent
Convention).
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[0001] The present invention relates in general to the technical sector of protective helmets,
more preferably a protective helmet for skiing.
[0002] More particularly, a protective helmet includes a layer of polystyrene or other foam
material or generally an energy absorption layer coated with a protective coating
shell. The energy absorption layer is then associated with an inner padding for accommodating
the head of a user.
[0003] According to the prior art, the outer protective coating shell may be made using
two main technologies.
[0004] A first technology is so-called in-molding technology. According to this technology,
the outer shell is a polycarbonate sheet which is directly thermoformed on the polystyrene
layer. Normally a shell obtained by means of the in-molding technique is a very light
shell which guarantees the lightness of the helmet, but is not always able to ensure
a very high impact resistance. The shell obtained by means of in-molding technology
moreover is not suitable for stably fixing accessories for the helmet, such as ventilation
elements or buttons for fixing the visor or other accessories which are normally associated
with the protective helmet.
[0005] Another technology is that of so-called ABS shells which are obtained by means of
the molding of plastic material, where a pre-molded ABS shell is associated with the
polystyrene layer.
[0006] So-called ABS shells have the advantage of offering a greater production capacity,
but have the drawback of a greater weight, which prevents achieving optimum comfort
of the helmet, owing to the additional weight.
[0007] Patent Application
US 2012/005810 A1 discloses a safety helmet having an outer shell formed from a Polycarbonate (PC)
crown and an Acrylonitrile Butadiene Styrene (ABS) skirt, and an inner shell formed
from expanded polystyrene. The inner shell is co-moulded with the outer shell.
[0008] One technical problem underlying the present disclosure consists in providing a helmet
which may offer the advantages of protection from impacts of a helmet with ABS shell,
without excessively increasing the overall weight of the helmet, and/or which provides
further advantages. This technical problem is solved by a helmet according to Claim
1 and by a method according to Claim 16. Secondary characteristic features forming
the subject of the present disclosure are defined in the corresponding dependent claims.
[0009] In particular, according to the present disclosure, the helmet includes an outer
coating which coats and covers an inner energy absorption layer. The outer coating
includes a cap-shaped or shell-shaped portion arranged in a top area of the helmet,
namely at the top of the helmet, and a crown-like portion, which is located at least
partially around the cap-shaped portion and covers at least the temples of a user.
[0010] The cap-shaped portion has a respective resistance to, or capacity for protection
from, impacts or knocks, for example a respective penetration protection. The crown-like
portion has a respective impact resistance or protection capacity greater than the
impact resistance of the cap-shaped portion. The impact resistance is to be understood
as meaning, for example, the capacity to remain intact, or capacity to withstand deformations,
in the event of knocks, as in the case of an impact or fall.
[0011] The crown-like portion is to be understood as meaning a portion which follows at
least partly a perimetral zone or a bottom edge of the cap-shaped portion or covers
the area of the temples, and preferably the forehead area (above the visor area of
the helmet) and the nape area.
[0012] This enables a helmet to be obtained where the more resistant material occupies the
most important zone to be protected, namely the area of the temples, and if necessary
also the forehead area, while the lighter material occupies a top part of the helmet,
which is normally less subject to serious impacts.
[0013] The two portions are therefore both coating portions, namely which form a coating
for the energy absorption layer and are preferably made of thermoplastic material,
with smaller thicknesses than the energy absorption layer, preferably smaller than
one third of the thickness of the energy absorption layer. The energy absorption layer
is preferably a foam, such as preferably polystyrene or EPS.
[0014] The crown-like portion is preferably a closed-ring portion. The closed-ring form
ensures greater comfort for assembly with the energy absorption layer. The crown-like
portion, however, may also be of the type in the form of an open ring or including
a plurality of parts.
[0015] Preferably, the cap-shaped portion occupies a greater area than the crown-like portion,
and this allows the overall weight of the helmet to be reduced, without affecting
the level of protection. The coating which is obtained is preferably a visible coating
of the protective helmet, so as to avoid having additional layers.
[0016] For example, the cap-shaped portion has a substantially hemispherical or shell like
form. Areas not covered by the cap portion and crown-like portion are provided so
as to allow the fixing of helmet accessories directly to the underlying energy absorption
layer.
[0017] According to the invention, the uncovered areas support, a so-called deflector device.
The deflector device is supported directly on the energy absorption layer. Said uncovered
areas are the areas not covered by said cap portion and crown-like portion, and located
between said cap portion and crown-like portion. Alternatively, according the invention,
between the cap-shaped portion and the crown-like portion openings or slits are provided
for fixing ventilation bodies or other accessories, which are also attached to the
energy absorption layer.
[0018] According to a more preferred aspect of the present disclosure, the deflector device
has an rear air intake function. The air intake device, also called an air extractor,
is a device that allows sucking air in a rear area by depression and drawing it from
inside the helmet, creating a flow of ventilation.
[0019] More preferably, the deflector device includes a support frame, a deflector body
provided with through-openings and a slider with through-openings mounted movable
relative to the deflector body. The slider is movable with a predefined stroke. The
slider can be provided with a gripping element, or operating lever. The deflector
body is preferably snap-fit mounted on the support frame. A movement with a predefined
stroke of the slider allows adjusting the free opening of the through-openings of
the deflector body. As mentioned, the slider can be easily operated by a user for
obtaining a desired adjustment by means of a gripping element or lever, shaped like
a slide, fixed to the slider. Preferably, the support frame is mounted directly on
the energy absorption layer, and co-molded with the latter.
[0020] According to an even more preferred aspect of the present disclosure, the deflector
device has a double function as an air intake device and an anti-penetration protection
device. For this purpose, the deflector body is a rigid body and essentially occupies
the entire uncovered area. In this way, the helmet has an improved protection against
penetration also at the deflector device.
[0021] The crown-like portion can also act as a support for helmet accessories, such as,
for example, a fixing assembly for a helmet visor.
[0022] The coating therefore consists preferably of only two portions, i.e. a cap-shaped
portion and crown-shaped portion, and optionally of the deflector device. Since these
two portions are in fact different being preferably made of different materials, they
are associated in different times and in different ways with the energy absorption
layer.
[0023] Preferably, the cap-shaped portion is a sheet of thermoformable material, and therefore
may be easily thermoformed on the energy absorption layer and may be layer which has
a minimum thickness. Even more preferably, the cap-shaped portion is a shell which
is thermoformed, preferably using in-molding technology. The energy absorption layer
is, as mentioned, preferably made of polystyrene or EPS.
[0024] The cap-shaped portion may instead be a more resistant portion and, for this purpose,
the material is chosen, preferably, from the group of thermoplastic material including
polycarbonate, glass fiber, carbon fiber, a mixture of carbon fiber and glass fiber,
or in any case made of a material and/or a thickness intended to provide a greater
protection as regards the cap-shaped portion.
[0025] Even more preferably, the crown-like portion has a greater thickness than the cap-shaped
portion. For example, the cap-shaped portion has a thickness of between 0.3 and 1.5
mm, more preferably between 0.5 and 1.2 mm, more preferably between 0.6 and 0.8 mm.
The crown-like portion is made preferably with a thickness of between 1 and 3.5 mm,
more preferably between 1.2 and 3.5 mm.
[0026] The present invention also relates to a method for coating an energy absorption layer
of a protective helmet. A cap-shaped portion with a corresponding impact resistance
is associated, preferably thermoformed, on a top area of the helmet and a crown-like
portion is arranged at least partially around said cap-shaped portion at least in
the region of the temples of a user. The crown-like portion has an impact resistance
greater than the impact resistance of the cap-shaped portion. The cap-shaped portion
and the crown-like portion are made preferably using different technologies. The cap-shaped
portion is made preferably using in-molding technology. The crown-like portion is
made by means of molding of plastic material and is fixed after the cap-shaped portion.
[0027] Other characteristic features and modes of use of the subject of the present disclosure
will emerge more clearly from the following detailed description of a number of preferred
embodiments thereof, provided by way of a non-limiting example. It is nevertheless
evident that each embodiment may have one or more of the advantages listed above;
in any case it is nevertheless not necessary that each embodiment should have simultaneously
all the advantages listed.
[0028] It is also understood that the scope of the present disclosure includes all the possible
combinations of embodiments indicated above and of those described with reference
to the following detailed description, as long as they fall under the scope of protection
of the invention defined by the appended claims.
[0029] Reference will now be made to the figures in the attached drawings in which:
- Figure 1 shows an isometric view, from above and from the front, of a helmet according
to the present disclosure;
- Figure 2 shows an isometric view, from above and from behind, of a helmet according
to the present disclosure;
- Figure 3 shows a view of a helmet with separated parts according to the present disclosure;
- Figure 4 shows a cross-sectional view of a bottom portion of a helmet according to
the present disclosure;
- Figure 5 shows a cross-sectional view of a helmet according to the present disclosure;
- Figure 6 shows a side view of a further helmet according to the present disclosure;
- Figure 7 shows a partially sectional side view of the helmet of Figure 6;
- Figure 8 shows an exploded view of a deflector device for a helmet according to the
present disclosure;
- Figure 9 shows an enlargement IX of figure 7.
[0030] With reference to the attached figures, the reference number 10 indicates a helmet
according to the present disclosure. The helmet 10 includes a layer 15 made of polystyrene
or EPS and a coating 17 with a thickness smaller than that of the polystyrene layer
15. The polystyrene layer 15 may be replaced by another energy absorption layer, for
example another layer of foam material, known to the person skilled in the art.
[0031] The helmet 10 has a top region which may be identified as the area which is located
at the top of a user's head, preferably in the region of the parietal bones of the
skull. In the helmet there is also a bottom zone which is intended to cover the temples
and the nape and which is located closer to a front zone A of the helmet where the
face is intended to emerge and is normally intended for a visor of the helmet.
[0032] In the context of the present disclosure any spatial reference, such as above, below,
top, front or similar spatial references must be understood in a non-limiting manner,
in relation to the position of the helmet when it is worn by a user.
[0033] The coating 17 is a coating which has the function of providing protection against
impacts and penetration by external bodies, in the event of a fall or impact. The
coating 17 is made of thermoplastic material and has a very small thickness compared
to the thickness of the energy absorption layer 15, for example smaller than one third
of the thickness of the energy absorption layer.
[0034] The coating 17 is preferably made of two different portions and preferably with two
different thicknesses, being optionally also made of different materials.
[0035] Even more particularly, the coating 17 includes a cap-shaped portion 20 made of a
first material for protection against impacts and a crown-like portion 21 made of
a second material for protection against impacts. The crown-like portion 21 has an
impact resistance greater than that of the cap-shaped portion 20.
[0036] The cap-shaped portion 20 is substantially hemispherical or shell-shaped and is located
at the top of the helmet. The cap-shaped portion 20 is preferably a sheet made of
thermformable material, preferably using in-molding technology. It therefore consists
of a thermoformed shell.
[0037] The crown-like portion 21 is instead arranged in the region of the forehead area
and temples of the helmet, above the visor zone, and preferably runs around the whole
of the helmet as far as the nape.
[0038] The crown-like portion is made by means of molding of plastic material, for example
it consists of a portion made of polycarbonate, glass fiber glass, carbon fiber, a
mixture of carbon fiber and glass fiber and in any case a material intended to create
a greater protection compared to the cap-shaped portion made using in-molding technology.
The crown-like portion 21 is, as mentioned, a portion which is more resistant than
the cap-shaped portion 20.
[0039] Again preferably the cap-shaped portion 20 is made with a thickness of between 0.3
and 1.5 mm, more preferably between 0.5 and 1.2 mm, more preferably between 0.6 and
0.8 mm.
[0040] The crown-like portion 21 is preferably made with a thickness of between 1 and 3.5
mm, more preferably between 1.2 and 3.5 mm.
[0041] The cap-shaped portion 20 may be fixed at the time of thermoforming to the energy
absorption layer 15. The crown-like portion 21 is instead fixed using gluing technology
available to the person skilled in the art, at a later stage The crown-like portion
21 has preferably a folded edge 35 for insertion inside a corresponding slit 36 in
the energy absorption layer. The crown-like portion preferably has a C-shaped section
for embracing with a matching fit a corresponding portion of the energy absorption
layer 15. The energy absorption layer 15 has a cavity or recess 30 in the region of
the crown-like portion 21 for compensating for the difference in thickness with respect
to the cap-shaped portion (Figure 3).
[0042] The crown-like portion may have a lug 32 in the nape area for allowing the fixing
of accessories for the helmet, or for forming ventilation openings, or air intake
openings, or ventilation bodies or air intake bodies, which could not be fixed to
the cap-shaped portion. These accessories of the helmet are also fixed to the energy
absorption layer 15, in addition to the crown-like portion, through suitable slits
or access openings V provided between the cap-shaped portion 20 and the crown-like
portion 21, as can be seen in Figure 2.
[0043] With reference to Figures 6-9, another aspect of the helmet 10 according to the present
disclosure is shown. The helmet 10 of figures 6-9 has the same components as the helmet
of figures 1-5, and therefore the same reference numbers are used with the same function.
[0044] In particular, the above uncovered areas, or areas not covered by said cap portion
20 and crown-like portion 21, support a so-called deflector device 40. The deflector
device 40 is preferably supported directly on the energy absorption layer 15.
[0045] Preferably, the deflector device 40 has the function of rear air intake. The air
intake device also called as an air extractor is a device where air is sucked in a
rear area by depression and drawn from inside the helmet, creating a flow of ventilation.
[0046] More preferably, the deflector device 40 includes a support frame 41, a deflector
body 42, shaped like a grid and/or provided with through openings and a slider 43
with through openings placed on the deflector body. The slider is movably mounted
on the deflector body 42.
[0047] The slider 43 can be provided with a gripping element 44. The gripping element can
be fixed by means of a screw or similar fastening component 45. The fastening component
45 is inserted in a slot 46 of the deflector body 42.
[0048] The deflector body 42 is preferably snap-fit mounted on the support frame 41. A movement
with a predetermined stroke of the slider 43 allows to adjust the free opening of
the through-openings of the deflector body 42. As mentioned, the slider 43 can be
easily operated by a user for the adjustment to be obtained, by means of a gripping
element 44 fixed to the slider 43. Preferably, the support frame 41 is mounted directly
on the energy absorption layer 15, and co-molded with the latter.
[0049] Preferably, the deflector device 40 has a double function as an air intake device
and an anti-penetration protection device. For this purpose, the deflector body 42
is a rigid body and substantially occupies the entire uncovered area in the air intake
area. In this way, the helmet 10 has an improved protection against penetration also
in the region of the deflector device.
[0050] The crown-like portion 21 can also act as a support for helmet accessories, such
as for example an assembly for fixing a visor.
[0051] The subject-matter of the present invention has been described hitherto with reference
to preferred embodiments thereof. It is to be understood that other embodiments relating
to the same invention may exist, all of these falling within the scope of protection
of the claims which are attached here below.
1. Helmet (10) including at least one energy absorption layer (15) and an outer coating
(17) adapted to coat said energy absorption layer (15), wherein said outer coating
(17) includes a cap-shaped portion (20) arranged in a top area of the helmet (10)
and a crown-like portion (21) arranged at least partially around said cap-shaped portion
(20), in the region of the temples of a user, wherein the crown-like portion (21)
has an impact resistance greater than the impact resistance of the cap-shaped portion
(20),
characterized in that
a) the cap-shaped portion (20) and the crown-like portion (21) form the visible outer
coating of the energy absorption layer (15) and wherein it comprises uncovered areas,
or areas not covered by said cap-shaped portion (20) and crown-like portion (21) and
that said areas support a deflector device (40), wherein the deflector device (40)
is supported directly on the energy absorption layer (15), or
b) between the cap-shaped portion (20) and the crown-like portion (21) openings or
slits are provided for fixing ventilation bodies or other accessories, said ventilation
bodies or other accessories being attached to the energy absorption layer (15).
2. Helmet (10) according to claim 1, wherein the cap-shaped portion (20) has a substantially
hemispherical or shell shape and covers an area of the energy absorption layer (15)
greater than that of the crown-like portion (21).
3. Helmet (10) according to claim 1 or 2, wherein the cap-shaped portion (20) and the
crown-like portion (21) each have a smaller thickness than the energy absorption layer
(15), preferably smaller than one third of the thickness of the energy absorption
layer (15).
4. Helmet (10) according to any one of the preceding claims, wherein the cap-shaped portion
(20) is a thermoformed sheet, preferably made using in-molding technology.
5. Helmet (10) according to any one of the preceding claims, wherein the crown-like portion
(21) is arranged around said cap-shaped portion (20) in the region of a forehead area
and the temples area of the helmet, above a visor area of the helmet, and more preferably
around the whole cap-shaped portion (20) from the forehead area to a nape area.
6. Helmet (10) according to any one of the preceding claims, wherein the crown-like portion
(21) is made of thermoplastic material, for example polycarbonate, glass fiber, carbon
fiber, a mixture of carbon fiber and glass fiber, or a material designed to create
greater protection than the cap-shaped portion (20).
7. Helmet (10) according to any one of the preceding claims, wherein the cap-shaped portion
(20) has a thickness comprised between 0.3 and 1.5 mm, more preferably between 0.5
and 1.2 mm, more preferably between 0.6 and 0.8 mm.
8. Helmet (10) according to any one of the preceding claims, wherein the crown-like portion
(21) is preferably made with a thickness of between 1 and 3.5 mm, more preferably
between 1.2 and 3.5 mm.
9. Helmet (10) according to any one of the preceding claims, wherein the cap-shaped portion
(20) has a smaller thickness than the crown-like portion (21).
10. Helmet (10) according to any one of the preceding claims, wherein the crown-like portion
(21) preferably has a folded edge (35) for insertion into a corresponding slit (36)
in the energy absorption layer, or wherein the crown-like portion (21) preferably
has a C-section for embracing with a matching fit a corresponding portion of the energy
absorption layer (15).
11. Helmet according to any one of the preceding claims, wherein the energy absorption
layer (15) is made of foam, preferably polystyrene or EPS.
12. Helmet according to any one of the preceding claims, wherein the cap-shaped portion
(20) and the crown-like portion (21) are made of different materials.
13. Helmet according to any one of the preceding claims and option a) of claim 1, wherein
said deflector device (40) acts as a rear air intake and includes a support frame
(41), a deflector body (42) provided with through-openings and a slider (43) with
through-openings mounted movable with respect to the deflector body (42).
14. Helmet according to claim 13, wherein said support frame (41) is incorporated in the
energy absorption layer (15).
15. Helmet according to claim 13 or 14, wherein the deflector device (40) has a double
function as an air intake device and an anti-penetration protection device.
16. Method for coating an energy absorption layer (15) of a protective helmet (10), wherein
a cap-shaped portion (20) having a respective impact resistance is fixed on a top
zone of the energy absorption layer (15) and a crown-like portion (21) is arranged
at least partially around said cap-shaped portion (20) at least in the region of the
temples of a user, wherein the crown-like portion (21) has an impact resistance greater
than the impact resistance of the cap-shaped portion (20),
characterized in that the cap-shaped portion (20) and the crown-like portion (21) are fixed to the energy
absorption layer (15) at different times.
17. Method according to claim 16, wherein the cap-shaped portion (20) is associated with
the energy absorption layer using a technology different from that used for the crown-like
portion (21).
18. Method according to any one of claims 16 and 17, wherein the cap-shaped portion (20)
is associated with the energy absorption layer by means of an in-molding technique.
1. Helm (10), der mindestens eine Energieabsorptionsschicht (15) und eine äußere Beschichtung
(17), die angepasst ist, um die Energieabsorptionsschicht (15) zu beschichten, einschließt,
wobei die äußere Beschichtung (17) einen kappenförmigen Abschnitt (20), der in einem
oberen Bereich des Helms (10) angeordnet ist, und einen kranzartigen Abschnitt (21)
einschließt, der mindestens teilweise um den kappenförmigen Abschnitt (20) herum angeordnet
ist, in der Region der Schläfen eines Benutzers, wobei der kranzartige Abschnitt (21)
eine Schlagfestigkeit, die größer als die Schlagfestigkeit des kappenförmigen Abschnitts
(20) ist, aufweist,
dadurch gekennzeichnet, dass
a) der kappenförmige Abschnitt (20) und der kranzartige Abschnitt (21) die sichtbare
äußere Beschichtung der Energieabsorptionsschicht (15) ausbilden und wobei er unbedeckte
Bereiche oder Bereiche, die nicht durch den kappenförmigen Abschnitt (20) und den
kranzartigen Abschnitt (21) bedeckt sind, umfasst, und dass die Bereiche eine Ablenkvorrichtung
(40) unterstützen, wobei die Ablenkvorrichtung (40) direkt auf der Energieabsorptionsschicht
(15) gestützt wird, oder
b) zwischen dem kappenförmigen Abschnitt (20) und dem kranzartigen Abschnitt (21)
Öffnungen oder Schlitze zum Befestigen von Belüftungskörpern oder anderen Zubehörteilen
bereitgestellt sind, wobei die Belüftungskörper oder andere Zubehörteile an der Energieabsorptionsschicht
(15) angebracht sind.
2. Helm (10) nach Anspruch 1, wobei der kappenförmige Abschnitt (20) eine im Wesentlichen
halbkugelförmige oder Schalenform aufweist und einen Bereich der Energieabsorptionsschicht
(15), der größer als der des kranzartigen Abschnitts (21) ist, abdeckt.
3. Helm (10) nach Anspruch 1 oder 2, wobei der kappenförmige Abschnitt (20) und der kranzartige
Abschnitt (21) jeweils eine kleinere Dicke als die Energieabsorptionsschicht (15),
vorzugsweise kleiner als ein Drittel der Dicke der Energieabsorptionsschicht (15),
aufweisen.
4. Helm (10) nach einem der vorstehenden Ansprüche, wobei der kappenförmige Abschnitt
(20) eine warmgeformte Folie ist, die vorzugsweise unter Verwendung von Einformungstechnologie
hergestellt ist.
5. Helm (10) nach einem der vorstehenden Ansprüche, wobei der kranzartige Abschnitt (21)
um den kappenförmigen Abschnitt (20) in der Region eines Stirnbereichs und des Schläfenbereichs
des Helms über einem Schirmbereich des Helms und mehr bevorzugt um den gesamten kappenförmigen
Abschnitt (20) herum von dem Stirnbereich zu einem Nackenbereich angeordnet ist.
6. Helm (10) nach einem der vorstehenden Ansprüche, wobei der kranzartige Abschnitt (21)
aus thermoplastischem Material, zum Beispiel Polycarbonat, Glasfaser, Kohlefaser,
einer Mischung aus Kohlefaser und Glasfaser oder einem Material, das dazu ausgelegt
ist, einen größeren Schutz als der kappenförmige Abschnitt (20) zu erzeugen, hergestellt
ist.
7. Helm (10) nach einem der vorstehenden Ansprüche, wobei der kappenförmige Abschnitt
(20) eine Dicke zwischen 0,3 und 1,5 mm, mehr bevorzugt zwischen 0,5 und 1,2 mm, mehr
bevorzugt zwischen 0,6 und 0,8 mm, aufweist.
8. Helm (10) nach einem der vorstehenden Ansprüche, wobei der kranzartige Abschnitt (21)
vorzugsweise mit einer Dicke zwischen 1 und 3,5 mm, mehr bevorzugt zwischen 1,2 und
3,5 mm, hergestellt ist.
9. Helm (10) nach einem der vorstehenden Ansprüche, wobei der kappenförmige Abschnitt
(20) eine kleinere Dicke als der kranzartige Abschnitt (21) aufweist.
10. Helm (10) nach einem der vorstehenden Ansprüche, wobei der kranzartige Abschnitt (21)
vorzugsweise eine abgekantete Kante (35) zum Einführen in einen entsprechenden Schlitz
(36) in der Energieabsorptionsschicht aufweist, oder wobei der kranzartige Abschnitt
(21) vorzugsweise einen C-Abschnitt zum Einschließen mit einer passenden Anpassung
eines entsprechenden Abschnitts der Energieabsorptionsschicht (15) aufweist.
11. Helm nach einem der vorstehenden Ansprüche, wobei die Energieabsorptionsschicht (15)
aus Schaumstoff, vorzugsweise Polystyrol oder EPS, hergestellt ist.
12. Helm nach einem der vorstehenden Ansprüche, wobei der kappenförmige Abschnitt (20)
und der kranzartige Abschnitt (21) aus unterschiedlichen Materialien hergestellt sind.
13. Helm nach einem der vorstehenden Ansprüche und Option a) von Anspruch 1, wobei die
Ablenkvorrichtung (40) als ein hinterer Lufteinlass fungiert und einen Stützrahmen
(41), einen mit Durchgangsöffnungen versehenen Ablenkkörper (42) und einen Schieber
(43) mit in Bezug auf den Ablenkkörper (42) bewegbaren Durchgangsöffnungen einschließt.
14. Helm nach Anspruch 13, wobei der Stützrahmen (41) in die Energieabsorptionsschicht
(15) integriert ist.
15. Helm nach Anspruch 13 oder 14, wobei die Ablenkvorrichtung (40) eine Doppelfunktion
als eine Lufteinlassvorrichtung und eine Antipenetrationsschutzvorrichtung aufweist.
16. Verfahren zum Beschichten einer Energieabsorptionsschicht (15) eines Schutzhelms (10),
wobei ein kappenförmiger Abschnitt (20), der eine jeweilige Schlagfestigkeit aufweist,
an einer oberen Zone der Energieabsorptionsschicht (15) befestigt ist und ein kranzartiger
Abschnitt (21) mindestens teilweise um den kappenförmigen Abschnitt (20) herum mindestens
in dem Bereich der Schläfen eines Benutzers angeordnet ist, wobei der kranzartige
Abschnitt (21) eine Schlagfestigkeit, die größer als die Schlagfestigkeit des kappenförmigen
Abschnitts (20) ist, aufweist,
dadurch gekennzeichnet, dass der kappenförmige Abschnitt (20) und der kranzartige Abschnitt (21) zu unterschiedlichen
Zeiten an der Energieabsorptionsschicht (15) befestigt sind.
17. Verfahren nach Anspruch 16, wobei der kappenförmige Abschnitt (20) der Energieabsorptionsschicht
unter Verwendung einer Technologie, die sich von der für den kranzartigen Abschnitt
(21) verwendeten unterscheidet, zugeordnet ist.
18. Verfahren nach einem der Ansprüche 16 und 17, wobei der kappenförmige Abschnitt (20)
der Energieabsorptionsschicht mittels einer Einformungstechnik zugeordnet ist.
1. Casque (10) comportant au moins une couche d'absorption d'énergie (15) et un revêtement
externe (17) conçu pour revêtir ladite couche d'absorption d'énergie (15), dans lequel
ledit revêtement externe (17) comporte une partie en forme de coiffe (20) agencée
dans une zone supérieure du casque (10) et une partie de type couronne (21) agencée
au moins partiellement autour de ladite partie en forme de coiffe (20), dans la région
des tempes d'un utilisateur, dans lequel la partie de type couronne (21) a une résistance
à l'impact plus grande que la résistance à l'impact de la partie en forme de coiffe
(20),
caractérisé en ce que
a) la partie en forme de coiffe (20) et la partie de type couronne (21) forment le
revêtement externe visible de la couche d'absorption d'énergie (15) et dans lequel
il comprend des zones découvertes, ou des zones non couvertes par lesdites partie
en forme de coiffe (20) et partie de type couronne (21) et en ce que lesdites zones supportent un dispositif déflecteur (40), dans lequel le dispositif
déflecteur (40) est supporté directement sur la couche d'absorption d'énergie (15),
ou
b) entre la partie en forme de coiffe (20) et la partie de type couronne (21) des
ouvertures ou fentes sont fournies pour la fixation de corps de ventilation ou d'autres
accessoires, lesdits corps de ventilation ou autres accessoires étant attachés à la
couche d'absorption d'énergie (15).
2. Casque (10) selon la revendication 1, dans lequel la partie en forme de coiffe (20)
a une forme sensiblement hémisphérique ou de coque et couvre une zone de la couche
d'absorption d'énergie (15) plus grande que celle de la partie de type couronne (21).
3. Casque (10) selon la revendication 1 ou 2, dans lequel la partie en forme de coiffe
(20) et la partie de type couronne (21) ont chacune une épaisseur plus petite que
la couche d'absorption d'énergie (15), de préférence plus petite qu'un tiers de l'épaisseur
de la couche d'absorption d'énergie (15).
4. Casque (10) selon l'une quelconque des revendications précédentes, dans lequel la
partie en forme de coiffe (20) est une feuille thermoformée, de préférence fabriquée
à l'aide d'une technologie de moulage en place.
5. Casque (10) selon l'une quelconque des revendications précédentes, dans lequel la
partie de type couronne (21) est agencée autour de ladite partie en forme de coiffe
(20) dans la région d'une zone frontale et la zone de tempes du casque, au-dessus
d'une zone de visière du casque, et plus préférablement autour de la partie en forme
de coiffe (20) entière allant de la zone frontale à une zone de nuque.
6. Casque (10) selon l'une quelconque des revendications précédentes, dans lequel la
partie de type couronne (21) est constituée de matériau thermoplastique, par exemple
polycarbonate, de fibre de verre, de fibre de carbone, d'un mélange de fibre de carbone
et de fibre de verre, ou d'un matériau destiné à créer une plus grande protection
que la partie en forme de coiffe (20).
7. Casque (10) selon l'une quelconque des revendications précédentes, dans lequel la
partie en forme de coiffe (20) a une épaisseur comprise entre 0,3 et 1,5 mm, plus
préférablement entre 0,5 et 1,2 mm, plus préférablement entre 0,6 et 0,8 mm.
8. Casque (10) selon l'une quelconque des revendications précédentes, dans lequel la
partie de type couronne (21) est de préférence fabriquée avec une épaisseur comprise
entre 1 et 3,5 mm, plus préférablement entre 1,2 et 3,5 mm.
9. Casque (10) selon l'une quelconque des revendications précédentes, dans lequel la
partie en forme de coiffe (20) a une épaisseur plus petite que la partie de type couronne
(21).
10. Casque (10) selon l'une quelconque des revendications précédentes, dans lequel la
partie de type couronne (21) a de préférence un bord plié (35) pour insertion dans
une fente correspondante (36) dans la couche d'absorption d'énergie, ou dans lequel
la partie de type couronne (21) a de préférence une section en C destinée à envelopper
avec un ajustement concordant une partie correspondante de la couche d'absorption
d'énergie (15).
11. Casque selon l'une quelconque des revendications précédentes, dans lequel la couche
d'absorption d'énergie (15) est constituée de mousse, de préférence polystyrène ou
EPS.
12. Casque selon l'une quelconque des revendications précédentes, dans lequel la partie
en forme de coiffe (20) et la partie de type couronne (21) sont constituées de matériaux
différents.
13. Casque selon l'une quelconque des revendications précédentes et l'option a) de la
revendication 1, dans lequel ledit dispositif déflecteur (40) joue le rôle d'admission
d'air arrière et comporte un cadre de support (41), un corps de déflecteur (42) pourvu
d'ouvertures traversantes et une coulisse (43) avec des ouvertures traversantes montées
mobiles par rapport au corps de déflecteur (42).
14. Casque selon la revendication 13, dans lequel ledit cadre de support (41) est incorporé
dans la couche d'absorption d'énergie (15).
15. Casque selon la revendication 13 ou 14, dans lequel le dispositif déflecteur (40)
a une double fonction en tant que dispositif d'admission d'air et dispositif de protection
anti-pénétration.
16. Procédé permettant de revêtir une couche d'absorption d'énergie (15) d'un casque de
protection (10), dans lequel une partie en forme de coiffe (20) ayant une résistance
à l'impact respective est fixée sur une zone supérieure de la couche d'absorption
d'énergie (15) et une partie de type couronne (21) est agencée au moins partiellement
autour de ladite partie en forme de coiffe (20) au moins dans la région des tempes
d'un utilisateur, dans lequel la partie de type couronne (21) a une résistance à l'impact
plus grande que la résistance à l'impact de la partie en forme de coiffe (20),
caractérisé en ce que la partie en forme de coiffe (20) et la partie de type couronne (21) sont fixées
à la couche d'absorption d'énergie (15) à des moments différents.
17. Procédé selon la revendication 16, dans lequel la partie en forme de coiffe (20) est
associée à la couche d'absorption d'énergie à l'aide d'une technologie différente
de celle utilisée pour la partie de type couronne (21).
18. Procédé selon l'une quelconque des revendications 16 et 17, dans lequel la partie
en forme de coiffe (20) est associée à la couche d'absorption d'énergie au moyen d'une
technique de moulage en place.
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only.
It does not form part of the European patent document. Even though great care has
been taken in compiling the references, errors or omissions cannot be excluded and
the EPO disclaims all liability in this regard.
Patent documents cited in the description