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WO2019134767A1 - Casque, en particulier un casque intégral - Google Patents

Casque, en particulier un casque intégral Download PDF

Info

Publication number
WO2019134767A1
WO2019134767A1 PCT/EP2018/079601 EP2018079601W WO2019134767A1 WO 2019134767 A1 WO2019134767 A1 WO 2019134767A1 EP 2018079601 W EP2018079601 W EP 2018079601W WO 2019134767 A1 WO2019134767 A1 WO 2019134767A1
Authority
WO
WIPO (PCT)
Prior art keywords
helmet
filter element
receiving space
air
opening
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.)
Ceased
Application number
PCT/EP2018/079601
Other languages
English (en)
Inventor
Sandeep SUDHAKARAN
Sachin KAMATH
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.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel GmbH
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 Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Priority to EP18795562.0A priority Critical patent/EP3735143B1/fr
Publication of WO2019134767A1 publication Critical patent/WO2019134767A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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

Definitions

  • This disclosure generally relates to helmets, especially motorcycle helmets, especially full face helmets.
  • the disclosure further relates to helmets, especially motorcycle hel mets, comprising air filters for the breathing air of a person wearing the helmet.
  • Full face helmets usually comprise an outer shell with two main openings, the front opening being coverable by a visor, the lower opening going over the head of a person putting on the helmet and accommodating the neck of a person wearing the helmet.
  • WO Publication WO 99/62364 A1 shows a full face helmet comprising a flat filter mat below the visor area of the helmet. As the area of the filter is geometrically limited, the filter cannot be very efficient as the breathing resistance would be too high otherwise. Also, the helmet has other openings allowing air to enter the helmet, reducing the efficiency of the filter mat. Another helmet is known from WO 2017/032636 A1 .
  • a helmet especially a full face helmet, comprising an outer shell, a lower opening in the outer shell, a closable visor, an air intake opening in the outer shell for breathing air, a receiving space adapted to receive an air filter element inside the shell, the air intake opening allowing air to flow from the outside of the outer shell to the receiving space, a clean side opening con- necting the receiving space to the inside of the helmet for providing filtered air, and a removable air filter element, wherein the air filter element is positioned in the receiving space, wherein the receiving space comprises an access opening to the lower side of the helmet for servicing the filter element.
  • the advantage of using a pleated filter element inside the shell of the helmet allows for providing more filter media area.
  • the media can be selected to be of a higher filtration grade, as the restriction of the filter decreases with increasing the filter area.
  • Filter media can be preferably selected from media having filter classes G1 , G2, G3, G4, M5, M6, F 7, F8, F9 according to EN 779.
  • the filter media can comprise a single or multiple layers of paper, woven or non-woven filter media.
  • the media can comprise or consist of layers of textile media, synthetic nonwoven media, cellulose media, paper media laminated with fine or nano-fiber layers, active carbon particle layers, lami- nated paper media layers or fiber glass blended paper, non-woven or fabrics.
  • the receiving space and/or the access opening are curved.
  • the filter elements shape can be adapted to the general overall shape of the helmet or the shape of the head or chin of the person wearing the helmet. There- fore, more filter area can be accommodated inside the outer shell of the helmet.
  • the receiving space is provided in the lower front of the helmet, especially below the visor.
  • the filter element can be positioned closely to mouth and nose of the person wearing the helmet.
  • the filter element, the receiving space and the access opening are config- ured such that the filter element is replaceable by pulling and pushing the filter element through the access opening out of and into the receiving space.
  • the servicing direction is in vertical direction from the lower side of the helmet. Therefore, it is advantageous when the access opening is located in the lower edge of the outer shell, especially in the front, especially in the center of the front side. This allows for servicing the filter element also when wearing the helmet.
  • the filter element has a rectangular shape when in unmounted position and is elastically deformed to adopt the shape of the curved re- ceiving space when in mounted position and/or the curved shape of the access open- ing when being pushed inside the receiving space through the access opening.
  • the filter element can be held in the receiving space by friction without additional holding or securing means.
  • the sides of the filter element, especially the side bands can elastically and therefore sealingly contact the walls of the receiving space and/or at least one of the grilles. It has surprisingly been found that also when mounted in vertical direction from below, the compressive forces of the filter element mounted and deformed in such way are sufficient to hold the filter ele- ment operably in place.
  • the helmet further comprises an air intake grille provided on the air intake opening. This protects the air intake opening from bigger objects like insects entering the air intake opening.
  • the air filter element comprises a hydrophobic layer of filter media. This media preferably is facing the air intake opening. In this way, the amount of humidity entering the inside of the helmet can be reduced.
  • the air filter element comprises sealing means for sealingly contacting the receiving space.
  • the sealing means can be provided as a molded gasket surrounding the air filter element, especially made from polyurethane, or a textile or non-woven side band covering the side edges of the air filter element and adapted to abut against the side wall of the receiving space.
  • the air filter element comprises active carbon to reduce the amount of hazardous substances entering the helmet.
  • Filter media can be used as described in US 2014/0013957 A1 , WO2015/091822 A1 , US 2014/0157990 A1 , EP 188251 1 A2 which are incorporated herein to the fullest extend allowed by law.
  • the helmet comprises an outer shell, a lower opening in the outer shell, the lower opening preferably surrounding a neck of a person when wearing the helmet, a ring shaped layer covering the lower opening, the ring shaped layer being connected to the outer shell at the edge of the lower opening and sur- rounding an inner opening which is preferably adapted to sealingly rest against the neck of a person wearing the helmet.
  • the ring shaped layer comprises a soft padding attached to the edge of the inner opening of the ring shaped layer. The soft padding is adapted to abut on the neck, thereby sealing the inside of the helmet from the outside.
  • the ring shaped layer comprises or consists of a fabric, especially a non-breathable fabric. In this way, air entering the helmet through the fabric can be avoided or reduced, making the filtering effect more efficient.
  • the ring shaped layer comprises a cut region running radially from the inner opening to the outer region of the ring shaped layer, especially to the outer shell.
  • a closure means is provided to close the cut region when the helmet rests on the head of a person.
  • the closure means comprises a zipper and/or a hook-and-loop fas- tener.
  • the helmet has one or more air intake openings, in particular two air intake openings, which might have individual filter elements, e.g. pleated filter ele- ments, for each of the air intake openings or which might have one filter element for more than one air intake opening.
  • individual filter elements e.g. pleated filter ele- ments
  • the invention is also directed to a filter element adapted for being used in a helmet according to the invention and as described above and further below, comprising a pleated filter media bellow, at least two sealing means on opposite sides of the filter bellow to seal the zig-zag shaped side edges of the filter media bellow, wherein the filter element is configured to be pushed through the access opening and to be oper- ably accommodated in the receiving space.
  • the invention is also directed to the use of such a filter element in a helmet according to the invention.
  • the helmet according to the invention can be used as a motorcycle helmet, racing helmet, full face helmet, mining or construction site helmet, firefighter helmet or for other purposes where full face helmets can be used.
  • Figure 1 shows an embodiment of a full face helmet
  • Figure 2 shows a different view of the embodiment of Figure 1 ;
  • Figure 3 shows a detail of a section of the embodiment of Figure 1 cut in vertical direction as shown by the vertical inter line in Figure 1 ;
  • Figure 4 shows a detail of a section of the embodiment according to Figure 1 cut in horizontal direction as shown by the horizontal cut line in Figure 1 , wherein a filter element configured differently from the embodiment of Figure 3 is used;
  • Figure 5 shows a view from below into the frontal inside of the helmet according to any one of Figures 1 - 4.
  • Fig. 1 shows a full face helmet 1 , comprising an outer shell 4, a lower opening 3 in the outer shell 4 going over the head of a person putting on the helmet and accommodat- ing the neck of a person wearing the helmet, a closed or closable visor 2, an air intake opening 5 in the outer shell 4 for guiding breathing air to the inside of the helmet 1 , preferably located below the visor 2, a receiving space 6 adapted to receive a remov- able air filter element or air filter insert 7 inside the shell, the air intake opening 5 al- lowing air to flow from the outside of the outer shell 4 to the receiving space 6, and a removable air filter element 7 comprising a pleated filter bellow of filter media, wherein the air filter element 7 is sealingly positioned in the receiving space 6.
  • the embodiment preferably uses a pleated filter element inside the shell 4 of the hel met 1 which allows for providing more filter media area.
  • the media can be se- lected to be of a higher filtration grade, as the restriction of the filter decreases with increasing the filter area.
  • the helmet 1 further comprises an air intake grille 8 provided on outside the air intake opening 5. This protects the air intake opening 5 from bigger objects like insects en- tering the air intake opening 5.
  • the air filter element 7 comprises a hydrophobic layer of filter media. This media preferably is facing the air intake opening 5. In this way, the amount of humidity entering the inside of the helmet can be reduced.
  • the air filter element 7 comprises sealing means 9 for sealingly contacting the receiving space.
  • the sealing means can be provided as a molded bead (not shown) surrounding the air filter element 7, especially made from polyurethane, or as shown in Fig. 3, a textile or non-woven side band 9 covering at least two or all four side edges of the air filter element 7 and adapted to sealingly abut against the side wall 16 of the receiving space 6.
  • the air filter element 7 comprises active carbon to reduce the amount of hazardous substances entering the helmet.
  • a motorcycle helmet according to the invention preferably comprises an outer shell 4, a lower opening 3 in the outer shell, the lower opening 3 preferably surrounding a neck of a person when wearing the helmet 1 , a ring shaped closure layer 10 covering the lower opening 3, the ring shaped layer 10 being connected to the outer shell 4 at the edge of the lower opening 3 and surrounding an inner opening 30 which is preferably adapted to sealingly rest against the neck of a person wearing the helmet 1 .
  • the ring shaped layer 10 comprises a soft padding 14 attached to the edge of the inner opening 30 of the ring shaped layer 10.
  • the soft padding 14 is adapted to abut on the neck, thereby sealing the inside of the helmet 1 from the outside.
  • the ring shaped layer 10 comprises or consists of a fabric, especially a non-breathable fabric. In this way, air entering the helmet through the fabric can be avoided or reduced, making the filtering effect more efficient.
  • the ring shaped layer 10 comprises a cut region 1 1 running radially from the inner 30 opening to the outer edge of the ring shaped layer 10, especially to the outer shell 4.
  • a closure means is provided comprising a zipper 12 and/or a hook-and1 -loop fastener 13(obtainable un- der the trademark Velcro).
  • One part of the hook and loop fastener can be provided as an extension of the soft padding 14, projecting over the cut region 1 1 and being at- tachable to the second part of the hook and loop fastener, which is located at the opposite side of the cut region 1 1 on the ring shaped layer 10.
  • Fig. 3 shows a sectional view with a cut in vertical direction through the center of the front side of helmet 1 .
  • the filter element 7 may be located in the receiving space 6.
  • the upper side band 9 is sealingly contacting the upper wall of the receiving space 6.
  • the receiving space 6 is pro- vided by the outer shell 4 located in the front of the mouth of a person wearing the helmet.
  • the filter element 7 can be pushed into the receiving space 6 from the lower end through an access opening 22.
  • an inner grille or frame 15 is provided to hold the filter element 7 in place.
  • the inner grille comprises at least one and preferably a plurality of openings 23 for cleaned air to flow through from the filter element 7 to the person wearing the helmet 1 .
  • the inner grille 15 can be a unitary component of the outer shell 4, or, as shown in the embodiment of Figure 3, a separate component fixed to the outer shell with a flange 20.
  • the upper side band 9 sealingly abuts to the upper wall of the receiving space, and the lower side band 9 closes off the receiving space at the position of the access opening 22.
  • two additional side bands on the right and left side are provided, they preferably con- tact the two side walls of the receiving space 6 preferably in a sealing manner.
  • the pleat edges are cut in this view and are running in horizontal direction (in view direction of Fig, 3).
  • Fig. 4 shows a sectional view of the helmet 1 , wherein the cut is in horizontal direction through the filter element 7, approximately at the level of reference number 6 in Fig. 4.
  • Outer grille 8 is preferably fixed at positions 21 to the lower shell 4 by welding, gluing or snapping and may also be embodied as a unitary component of lower shell 4.
  • the receiving space 6 is preferably curved with a concave side on the inside and a convex side on the outside of the receiving space.
  • Outer grille 8 and inner grille 15 are shaped respectively.
  • a pleat direction opposite to the direction in Fig. 3 is also possible.
  • the pleated filter element 7 is bent to a shape that matches the shape of the receiving space 6, i.e. is bent to a curved shape in mounted position.
  • the side bands 9 are configured to rectangular in unmounted state but to be elastically deformable to a curved shape, preferably they are made from polyurethane or a flexible non-woven mat material and glued or welded to the pleated filter media body. This means that the upper (not visible) and lower side band 9 are bent slightly from a rectangular shape to an arcuate shape.
  • the side bands 9 and the filter element 7 can also be provided in an already curved shape that already matches the curved shape of the receiving space 6 of the helmet 1 .
  • the filter element pleated filter media has two elastically movable side flaps 26 on either side that project to the side and may adapted to sealingly contact the side walls of the receiving space 6.
  • the side flaps are the edges of the pleated filter media and may project over the side bands 9 in lateral direction.
  • the filter element 7 may in addition be configured in oversize in respect to the geometry of the receiving space.
  • the elastic deformation of the side bands 9 by bending to a curved shape, the elastic deformation of the optional side flaps 24 and the optional elastic deformation when mounting an oversized filter element 7 help to hold the filter element 7 in position such that no clo- sure element for the access opening 22 is required, however it is still a further option to provide a removable closure element for the access opening 22.
  • Figure 5 shows a view from below into the frontal inside of the helmet 1.
  • the filter element 7, of which only the lower side band 9 is visible, is mounted in the receiving space and closes the access opening 22.
  • the person wearing the helmet receives filtered air through a plurality of vertically oriented vent like openings 23 in the inner grille 15.
  • At least one of inner grille 15, access opening 22, receiving space 7 and openings 23 are preferably realized as one part in the inner wall structure of outer 4.
  • the embodiments preferably use a pleated filter element inside the shell 4 of the hel met 1 which allows for providing more filter media area.
  • the media can be se- lected to be of a higher filtration grade, as the restriction of the filter decreases with increasing the filter area.
  • other types of filter elements and filter media might be possible.
  • the skilled person is able to combine the features of this embodiment with the features of the other embodiments.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

La présente invention concerne un casque (1), en particulier un casque intégral, qui comprend une coque externe (3), une ouverture inférieure (3) dans la coque externe, une visière pouvant être fermée (2), une ouverture d'admission d'air (5) dans la coque externe pour respirer de l'air, un espace de réception (6) conçu pour recevoir un élément de filtre à air à l'intérieur de la coque, l'ouverture d'admission d'air permettant à l'air de circuler de l'extérieur de la coque externe jusqu'à l'espace de réception, une ouverture côté propre raccordant l'espace de réception à l'intérieur du casque pour fournir de l'air filtré, et un élément de filtre à air amovible (7), l'élément de filtre à air étant positionné dans l'espace de réception, l'espace de réception comprenant une ouverture d'accès (22) sur le côté inférieur (9) du casque pour l'entretien de l'élément de filtre.
PCT/EP2018/079601 2018-01-06 2018-10-29 Casque, en particulier un casque intégral Ceased WO2019134767A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18795562.0A EP3735143B1 (fr) 2018-01-06 2018-10-29 Casque, en particulier un casque intégral

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201821000678 2018-01-06
IN201821000678 2018-01-06

Publications (1)

Publication Number Publication Date
WO2019134767A1 true WO2019134767A1 (fr) 2019-07-11

Family

ID=64049251

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/079601 Ceased WO2019134767A1 (fr) 2018-01-06 2018-10-29 Casque, en particulier un casque intégral

Country Status (2)

Country Link
EP (1) EP3735143B1 (fr)
WO (1) WO2019134767A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999062364A1 (fr) 1998-06-02 1999-12-09 Hartmut Kunkel Casque pour motocycliste
EP1882511A2 (fr) 2006-07-26 2008-01-30 Mann+Hummel Gmbh Support de filtre doté d'une action bactérienne
EP2319339A1 (fr) * 2009-11-06 2011-05-11 AGV S.p.A. Casque comprenant un orifice d'admission d'air avant
US20140013957A1 (en) 2012-07-12 2014-01-16 Mann+Hummel Gmbh Filtering device, in particular for the air to be supplied to a fuel cell
US20140157990A1 (en) 2011-06-06 2014-06-12 Neenah Gessner Gmbh Antimicrobial Filter Medium and Filter Module
WO2015091822A1 (fr) 2013-12-18 2015-06-25 Mann+Hummel Gmbh Matériau filtrant, élément filtrant et système filtrant
WO2016079606A1 (fr) * 2014-11-19 2016-05-26 GORLE, Prem Kumar Casque de moto doté d'un système de filtration d'air intégré
WO2017032626A1 (fr) * 2015-08-24 2017-03-02 Mann+Hummel Gmbh Casque, notamment casque intégral
WO2017032636A1 (fr) 2015-08-27 2017-03-02 Unilever Plc Dispositif

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999062364A1 (fr) 1998-06-02 1999-12-09 Hartmut Kunkel Casque pour motocycliste
EP1882511A2 (fr) 2006-07-26 2008-01-30 Mann+Hummel Gmbh Support de filtre doté d'une action bactérienne
EP2319339A1 (fr) * 2009-11-06 2011-05-11 AGV S.p.A. Casque comprenant un orifice d'admission d'air avant
US20140157990A1 (en) 2011-06-06 2014-06-12 Neenah Gessner Gmbh Antimicrobial Filter Medium and Filter Module
US20140013957A1 (en) 2012-07-12 2014-01-16 Mann+Hummel Gmbh Filtering device, in particular for the air to be supplied to a fuel cell
WO2015091822A1 (fr) 2013-12-18 2015-06-25 Mann+Hummel Gmbh Matériau filtrant, élément filtrant et système filtrant
WO2016079606A1 (fr) * 2014-11-19 2016-05-26 GORLE, Prem Kumar Casque de moto doté d'un système de filtration d'air intégré
WO2017032626A1 (fr) * 2015-08-24 2017-03-02 Mann+Hummel Gmbh Casque, notamment casque intégral
WO2017032636A1 (fr) 2015-08-27 2017-03-02 Unilever Plc Dispositif

Also Published As

Publication number Publication date
EP3735143B1 (fr) 2023-03-29
EP3735143A1 (fr) 2020-11-11

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