EP3434127A1 - Sporthelm mit verstärkten belüftungs- und antibeschlagseigenschaften - Google Patents

Sporthelm mit verstärkten belüftungs- und antibeschlagseigenschaften Download PDF

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Publication number
EP3434127A1
EP3434127A1 EP18184979.5A EP18184979A EP3434127A1 EP 3434127 A1 EP3434127 A1 EP 3434127A1 EP 18184979 A EP18184979 A EP 18184979A EP 3434127 A1 EP3434127 A1 EP 3434127A1
Authority
EP
European Patent Office
Prior art keywords
ventilation circuit
sports helmet
cap
ventilation
helmet according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18184979.5A
Other languages
English (en)
French (fr)
Other versions
EP3434127B1 (de
Inventor
Frédéric Michel
Christophe Chedal-Anglay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Skis Rossignol SA
Club Rossignol SA
Original Assignee
Rossignol SA
Club Rossignol SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rossignol SA, Club Rossignol SA filed Critical Rossignol SA
Publication of EP3434127A1 publication Critical patent/EP3434127A1/de
Application granted granted Critical
Publication of EP3434127B1 publication Critical patent/EP3434127B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/28—Ventilating arrangements
    • A42B3/281—Air ducting systems
    • A42B3/283—Air inlets or outlets, with or without closure shutters
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/24—Visors with means for avoiding fogging or misting
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42C—MANUFACTURING OR TRIMMING HEAD COVERINGS, e.g. HATS
    • A42C5/00—Fittings or trimmings for hats, e.g. hat-bands
    • A42C5/04—Ventilating arrangements for head coverings
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/18—Face protection devices
    • A42B3/185—Securing goggles or spectacles on helmet shells

Definitions

  • the invention relates to a sports helmet with enhanced aeration and demisting capabilities.
  • the invention is more particularly concerned with a helmet for sliding sports and, in particular, winter sports such as downhill or cross-country skiing, cross-country skiing, surfing or sledging.
  • the helmet of the invention can also be used for cycling, cycling or mountain biking.
  • Protective helmets used for the practice of boardsports and, in particular, winter sports, are intended to ensure the protection of the skull of the sportsman in case of fall or shock against obstacles.
  • the helmets Given the relatively low temperatures prevailing in snowy areas and / or at altitude, the helmets also have thermal insulation properties vis-à-vis the cold environment outside.
  • helmets In order to effectively perform these various functions, traditional helmets include a rigid outer shell enclosing a damping and thermally insulating inner bonnet.
  • these helmets are generally provided with means ensuring the escape of the hot air produced at the head because of the physical efforts of the user.
  • These evacuation means comprise a ventilation circuit opening outwards on the upper face of the helmet via ducts defined between slots formed through the rigid outer shell and the inner cap.
  • Some helmets are equipped with an adjustable shutter system of the ventilation circuit which allows the user to adjust the temperature inside his helmet according to the circumstances, by displacement, for example by translation, of a shutter.
  • the shutter system is constituted by a plate disposed between the inner cap and the outer shell and which can be moved by the user in translation by an actuating pin, accessible from the outside headphones, to close the slots of the ventilation circuit.
  • the masks generally have an upper edge which is lined with a porous foam band and / or orifices communicating with the outside in order to limit condensation phenomena inside the mask.
  • a helmet and a mask promotes the appearance of steam (water vapor) inside the mask due to, in particular, that the lower edge of the helmet tends to hinder the evacuation of fog.
  • some helmets are equipped with integrated means facilitating demisting of the mask.
  • defogging means comprise a ventilation circuit housed in the helmet and communicating with the interior volume of the mask via the foam strip or the orifices.
  • the communication is established by suction mouths, formed on the lower edge of the inner cap facing the upper edge of the mask and opening outward on the front face of the helmet via channels and ejection gills on his outer shell.
  • Such helmets are described, in particular, in patents US 2011/0167541 and US 5915537 .
  • the hot air evacuation means and defogging means provided on the existing helmets are generally independent.
  • the ventilation circuit of the helmet and the ventilation circuit of the mask are designed so that they are necessarily separate and can only be isolated from each other on the known helmets.
  • the object of the present invention is to optimize the aeration and defogging capabilities of the helmets by coupling the circuits specific to these functions so that the respective flow rates of the hot air evacuation flow and the ejection of the water vapor are significantly increased by synergistic effect.
  • a sports helmet comprising an outer shell and an inner bonnet characterized in that said shell and said bonnet delimit between them, on the one hand, a ventilation circuit for to the evacuation of hot air, delimited between slots provided, respectively, through the inner bonnet and the outer shell and, on the other hand, a ventilation circuit for defogging an independent vision device, delimited between suction mouths provided on the part front of the helmet and ejection openings provided on the outer shell, said helmet further comprising an adjustable shutter for modifying the air flow of the ventilation circuit and the ventilation circuit in a reversible manner.
  • the shutter connects the ventilation circuit to the ventilation circuit.
  • the shutter comprises a longitudinal opening.
  • the shutter comprises a maneuvering nipple which protrudes through the outer shell.
  • the adjustable shutter comprises an axial tongue provided with a longitudinal opening and connected, on both sides, to two arms, each carrying a valve flap between the ventilation circuit and the ventilation circuit. .
  • the aeration circuit comprises, on the cap, a central cavity and at least two lateral cavities, said cavities receiving said adjustable shutter and communicating with said slots.
  • the ventilation circuit comprises at least two lateral channels formed on the cap between the suction mouths and said lateral cavities of the aeration circuit with which they communicate via a conduit.
  • the axial tongue slides in the central cavity while the flaps pivot in the lateral cavities by moving the arms under the action of the tongue, between an isolation position of the ventilation and ventilation circuits respectively and a communication position in which the lateral channels of the ventilation circuit open, via the duct, into the lateral cavities of the ventilation circuit.
  • the ejection openings of the ventilation circuit communicate with said channels upstream of said duct.
  • the channels of the ventilation circuit have a narrowed section from upstream to downstream.
  • the arms have a curvilinear profile and slide in circular guide grooves formed between the central cavity and the lateral cavities of the cap.
  • the flaps are made on rods connected to said arms and rotatably fixed in said lateral cavities.
  • the shutter is made in one piece consisting of the tongue, flexible arms and rods carrying the shutters.
  • the aeration circuit comprises, on the one hand, at least one axial slot of the caulk coming opposite at least one axial slot of the shell and, on the other hand, at least two side slots of the cap being extended offset from at least two corresponding slots of the shell.
  • the upper face of the rods forms a hatch closing the slots of the hull.
  • the ventilation circuit comprises at least two front suction ports on the cap and at least two corresponding ejection ports on the shell which extend staggered towards the rear of the helmet.
  • the invention makes it possible to modify and adjust the flow rate of the ventilation and ventilation circuits by means of a single shutter integrated into the helmet.
  • the flow rates of aeration and ventilation flows are significantly greater, which makes it possible to obtain both a better regulation of the temperature inside the helmet as well as a faster and more efficient defogging. effective mask.
  • the figure 1 represents an exploded perspective view of an embodiment of the helmet of the invention in use with a mask.
  • the figure 2 represents a top view of the inner bonnet used in the embodiment of the helmet of the figure 1 .
  • the figure 3 represents a view from above of the outer shell used in the embodiment of the helmet of the figure 1 .
  • the figure 4 represents an exploded perspective view of the shutter and the quill used in the embodiment of the helmet of the figure 1 .
  • FIGS 5A, 5B represent top views of the embodiment of the figure 1 respectively in the isolation position of the ventilation and ventilation circuits and in the communication position of these two circuits.
  • the figure 1 is an exploded perspective view of an embodiment of a helmet according to the invention for the practice of alpine skiing and used here with a mask M.
  • This helmet is symmetrical with respect to a median longitudinal axis.
  • This helmet comprises a calotte 1 whose concave inner profile substantially matches the skull and which, for reasons of comfort and safety, is made with a shock-absorbing material (for example, a cellular material of the expanded polystyrene type EPS or expanded polypropylene EPP).
  • the helmet may also include a comfort liner, usually of flexible foam or textile, and positioned between the user's head and the cap.
  • This helmet also includes a rigid outer shell 2 made of a material of greater hardness to form a shield against shocks.
  • the material that forms the shell is a thermoplastic material such as PVC, ABS, or polycarbonate, obtained by injection.
  • the plastic material forming the shell may be loaded with fibers, for example glass, carbon or Kevlar, or any other type of fiber, possibly natural.
  • the helmet is provided, in a traditional manner, a set of adjustable links (not shown) ensuring its positioning and its holding on the head of the user.
  • the helmet may be provided on its front edge with a visor B, as in the embodiment illustrated by the figure 1 .
  • the inner calotin 1 and the outer shell 2 are secured to one another (for example, by gluing, or any other technique of securing a cap with a shell) delimiting between them, on the one hand, a ventilation circuit A and, on the other hand, a ventilation circuit V.
  • the ventilation circuit A is intended to improve comfort by ensuring the evacuation of hot air trapped around the skull of the user.
  • This aeration circuit A comprises two sets of through slots.
  • a first set of slots consists of at least one upper slot and, here, three upper slots 11a formed through the wall of the cap 1 and facing with at least one upper slot and here three upper slots 21a formed through the outer shell 2, as illustrated by the figures 1 and 3 .
  • a second set of slots consists of at least two lower slots 11b formed laterally and symmetrically on each side of the helmet, through the wall of the cap 1 and facing with at least two corresponding lower slots 21b formed through the outer shell 2, as illustrated by the figures 1 and 3 .
  • the air passages delimited by the slots in the present figures could have different and varied profiles, to take the form of recesses or orifices, for example, with rounded contours or in parallelepiped.
  • This aeration circuit A further comprises, on the cap 1, an upper central cavity 12 in which open the upper slots 11a, and at least two lower lateral cavities 13 in which open the lower slots 11b.
  • the ventilation circuit V is, meanwhile, for defogging the mask M ensuring the escape of condensed water vapor and trapped in the mask M.
  • the ventilation circuit V remains operational and effective if the user wears glasses, sunglasses, or a retractable visor possibly integrated into the helmet or mounted on the outside of the hull.
  • the ventilation circuit V is delimited between at least one suction mouth and, preferably as in the embodiment shown, two mouths 10 provided on the front edge or, more generally, on the front part of the inner bonnet 1 (under the optional visor B) and at least one, and here two, ejection ears 20 corresponding formed on the outer shell 2 and extending staggered towards the rear of the helmet.
  • the mouths 10 may be provided on a protective piece attached to the front edge of the cap, or possibly made in the outer shell itself.
  • the ventilation circuit V further comprises at least two lateral channels 15 formed on the cap 1 between the suction mouths 10 and the lateral cavities. 13 of the ventilation circuit A with which they can be connected and communicate via a duct 16 forming a lock for the passage of air.
  • the ejection openings 20 of the ventilation circuit V communicate with the channels 15 upstream of the duct 16.
  • the suction ports 10 of the helmet are positioned in the immediate vicinity of the upper edge of the mask.
  • This upper edge is, in general, lined with a porous foam (not shown) and, where appropriate, orifices for communicating with the outside intended to dissipate the condensation in the mask and which are then placed opposite the suction vents 10 of the helmet.
  • the lateral cavities 13 and the channels 15 are covered by the wall of the outer shell 2, as illustrated by FIG. figure 1 .
  • a variant not shown is to invert this structure by leaving the side cavities and channels in the wall of the shell instead of that of the cap.
  • the shell 2 is provided with complementary orifices 22 opposite the mouths 10 of the cap 1 on the lateral flanks of the visor B, when it exists, as illustrated in the variants of FIGS. figures 1 and 3 .
  • the hot air present in the upper part of the helmet is driven outwards by the speed-generated laminar air flows which create, via the slits 21a, 21b, a depression in the internal ventilation circuit A of the helmet, as illustrated by the dashed arrows shown in the drawings.
  • these laminar flows create, at the level of the openings 20, a depression in the ventilation circuit V which allows the extraction of the water vapor of the mask M via the mouths 10 and the openings 20, as illustrated by the arrows solid lines appearing on the drawings.
  • the lower slots 21a, 21b and the louvers 20 are oriented on the helmet in the longitudinal direction and have beveled edges, as illustrated by the drawings.
  • the respective air exhausts of the ventilation circuit A and of the ventilation circuit V are substantially perpendicular, as visible on the figure 1 .
  • the channels 15 of the ventilation circuit V have a narrowed section from upstream to downstream, as illustrated by the figure 1 , which promotes the aspiration of the air and its acceleration in the channels 15, in order to optimize the extraction rate of the mist of the mask M from the mouths 10.
  • the ventilation circuit V is intended to couple the ventilation circuit V with the ventilation circuit A to increase the level of vacuum in the ventilation circuit V and optimize the extraction rate of the steam.
  • the helmet is provided with an adjustable shutter 3 allowing the user, both reversibly, to modify and adjust the hot air outlet flow rate of the aeration circuit A, and so the temperature inside the helmet, and modify and adjust the air flow in the ventilation circuit V to thereby change the demisting capacity.
  • the adjustable shutter 3 makes it possible to connect the ventilation circuit A to the ventilation circuit V thus modifying the demisting capacity.
  • the adjustable shutter 3 comprises, for this purpose, an axial tongue 31 provided with a longitudinal opening 30 and a maneuvering stud 35 which projects through the outer shell 2.
  • the opening 30 is likely to come, by translation of the tongue 31, facing the upper slots 11a of the cap 1 and the upper slots 21a of the shell 2 to open the aeration circuit A.
  • the tongue 31 rests on a longitudinal flat surface 12a forming a slide formed on the edge of the central cavity 12, as illustrated by FIG. figure 2 .
  • the longitudinal ends of the flat portion 12a of the central cavity 12 form stop stops for the sliding of the tongue 31.
  • small pins could protrude around the slot upper central 11a and come engage in corresponding holes made on the axial tongue 31 to wedge it in the median position in the cavity 12.
  • the shutter would be supported by the shell in the wall of which would be formed holes cooperating with the pins of the shutter.
  • the tongue 31 is connected, on both sides, to two flexible arms 32 each carrying a flap 33 forming a valve between the ventilation circuit A and the ventilation circuit V.
  • the two arms 32 are housed and slidably integrated in two circular guide grooves 14 formed between the central cavity 12 and the lateral cavities 13 of the cap 1, as illustrated by the FIG. Figures 5A, 5B .
  • the shutter 3 is devoid of axial tab.
  • the side arms 32 actuating the flaps 33 would thus be connected to each other via a connecting element and maneuver or left independent being each provided with their own operating element.
  • the ventilation circuit A does not comprise a central discharge orifice and the exhaust of the hot air is only effected by the lower slots 11b, 21b and the lateral cavities 13.
  • the lateral cavities 13 have, at their front periphery, a first flat portion 13a on which rests and slides a support tab of the flap 33.
  • each link 34 has a curved profile and carries a pin (not shown) forming a pivot which is rotatably engaged in the cap, in a corresponding orifice formed on a second flat surface 13b located at the periphery rear of the lateral cavity 13.
  • the rods 34 have an upper face 34b which extends under the shell 2 by marrying its inner wall, and away from the bottom of the lateral cavities 13.
  • the flaps 33 extend, for their part, transversely to the outer wall of the cap 1 and to the inner wall of the shell 2 and thus substantially perpendicular to the upper face 34b of the rods 34.
  • the shutter 3 is integrated and wedged vertically between the shell 2 and the bonnet 1 during assembly of the helmet. It is thus expected that its general envelope matches the outer profile of the cap without presenting extra thickness, with the exception of the pin 35 for actuating the shutter 3.
  • the axial tongue 31 is housed entirely in the central cavity 12 and the flaps 33 are integrated in the two lateral cavities 13 of the cap 1. The assembly of the cap bearing the shutter with the shell is thus facilitated.
  • the two arms 32 providing the connection between the tongue 31 and the flaps 33 are symmetrical and have a curvilinear profile curved forward. They are made here with a small thickness of material and therefore have a capacity for elastic deformation.
  • the shutter is preferably made by molding a single piece of plastic material.
  • This material may, for example, be a thermoplastic material such as a polyamide or a polyurethane.
  • the shutter material could be a fiber filled plastic, or possibly a metallic material.
  • the axial tongue 31 is slidable back and forth in the central cavity 12 of the cap 1 between its two longitudinal ends.
  • the translation of the axial tongue 31 causes the curvilinear sliding of the arms 32 in the grooves 14 and the pivoting of the rods 34 and, consequently, that of the flaps 33 in the lateral cavities 13.
  • the flaps 33 are pivoted between an isolation position of the two circuits, respectively, ventilation A and ventilation V, and a communication position between these circuits.
  • the stroke of the central tongue 31 allows the positioning of the shutter in any intermediate opening position.
  • the displacement of the flaps 33 in the cavity 13 is accompanied by a tangential displacement of the upper face 34b of the rods 34.
  • the upper face 34b of the rods 34 has an orifice capable of coming opposite the slots 21b of the shell 2 to allow a limited escape of the hot air trapped in the upper part of the helmet and therefore a minimum opening of the aeration circuit A.
  • the lateral channels 15 of the ventilation circuit V then open, via the ducts 16, into the lateral cavities 13 of the ventilation circuit A.
  • the channels 15 then communicate with the outside both via the openings 20 and the slots 21b.
  • the extreme communication position ( Figure 5B ) also corresponds to the maximum opening of the aeration circuit A since the upper slots 11a, 21a and the lower slots 11b, 21b of the cap and the shell open out.
  • the ventilation circuits V and ventilation A may be independent and isolated from each other, for example, by a transverse wall formed in the lateral cavity 13 or carried by the shutter 3. The air arriving from the ventilation circuit V can then escape through the slots 21b which would also serve to exhaust the ventilation circuit A.
  • the helmet may be manufactured according to an "in-mold” process.
  • This manufacturing process consists of molding the helmet by fusing the outer shell with the inner cap in the same mold.
  • the shell is obtained by injection molding and the cap is overmolded inside the shell.
  • the advantage of this method is to lighten the structure of the helmet while enhancing its shock absorption capacity.
  • the cap In a first mode, the cap is manufactured in two parts to integrate the shutter: a first part of calotin, thin thickness, is molded on the shell. Another part of calotin, made in a second mold and carrying the shutter, can be reported from the inside of the helmet. The shutter then moves between two layers of calotin.
  • the shell is made in two parts: a first shell part is then molded and the cap is molded over or vice versa.
  • the calotin then carries the lateral cavities and the channels. We then returns the shutter in the recess of the shell and completes the first shell portion by assembly with a second shell part molded separately.

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  • Helmets And Other Head Coverings (AREA)
EP18184979.5A 2017-07-26 2018-07-23 Sporthelm mit verstärkten belüftungs- und antibeschlagseigenschaften Active EP3434127B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1757102A FR3069418B1 (fr) 2017-07-26 2017-07-26 Casque de sport a capacites d’aeration et de desembuage renforcees

Publications (2)

Publication Number Publication Date
EP3434127A1 true EP3434127A1 (de) 2019-01-30
EP3434127B1 EP3434127B1 (de) 2020-04-01

Family

ID=60138506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18184979.5A Active EP3434127B1 (de) 2017-07-26 2018-07-23 Sporthelm mit verstärkten belüftungs- und antibeschlagseigenschaften

Country Status (3)

Country Link
US (1) US20190029356A1 (de)
EP (1) EP3434127B1 (de)
FR (1) FR3069418B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109984418A (zh) * 2019-02-01 2019-07-09 古正煇 内衬可调式头盔

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10602795B2 (en) 2017-01-26 2020-03-31 Bell Sports, Inc. Helmet comprising a segmented shell
GB2588684A (en) * 2019-11-04 2021-05-05 Globus Shetland Ltd Protective headgear with ventilation
US11064757B1 (en) * 2020-10-09 2021-07-20 Robert Huggins Weatherproof protective gear for cycling
US20220400803A1 (en) * 2021-06-21 2022-12-22 Aliaksei Chernyshou Helmet for impact energy displacement and/or absorption
DE102022103441B4 (de) * 2022-02-14 2024-03-21 Busch PROtective Germany GmbH & Co. KG Augenschutz, Augenschutzvorrichtung für eine Kopfbedeckung sowie Kopfbedeckung umfassend eine Augenschutzvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573289A1 (fr) * 1984-11-22 1986-05-23 Nava Pier Luigi Casque integral muni d'un systeme de ventilation perfectionne
EP1396200A1 (de) * 2001-06-12 2004-03-10 Shoei Co., Ltd. Helm
US20110167541A1 (en) * 2010-01-14 2011-07-14 Smith Optics, Inc. Helmet comprising surface reinforcing component with embedded anchors
US8683617B2 (en) * 2011-01-19 2014-04-01 Smith Optics, Inc. Multi-component helmet with ventilation shutter
WO2016157046A1 (en) * 2015-03-30 2016-10-06 Agv S.P.A. Protective helmet

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7975320B2 (en) * 2005-12-20 2011-07-12 Smith Optics, Inc. Helmet including vent and actuator assembly for moving vent shutter and methods of using same
JP6163366B2 (ja) * 2013-06-27 2017-07-12 株式会社Ｓｈｏｅｉ ヘルメット

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573289A1 (fr) * 1984-11-22 1986-05-23 Nava Pier Luigi Casque integral muni d'un systeme de ventilation perfectionne
EP1396200A1 (de) * 2001-06-12 2004-03-10 Shoei Co., Ltd. Helm
US20110167541A1 (en) * 2010-01-14 2011-07-14 Smith Optics, Inc. Helmet comprising surface reinforcing component with embedded anchors
US8683617B2 (en) * 2011-01-19 2014-04-01 Smith Optics, Inc. Multi-component helmet with ventilation shutter
WO2016157046A1 (en) * 2015-03-30 2016-10-06 Agv S.P.A. Protective helmet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109984418A (zh) * 2019-02-01 2019-07-09 古正煇 内衬可调式头盔

Also Published As

Publication number Publication date
FR3069418B1 (fr) 2019-11-29
US20190029356A1 (en) 2019-01-31
FR3069418A1 (fr) 2019-02-01
EP3434127B1 (de) 2020-04-01

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