WO2007093059A1 - Ensemble d'évacuation d'air pour climat froid - Google Patents

Ensemble d'évacuation d'air pour climat froid Download PDF

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Publication number
WO2007093059A1
WO2007093059A1 PCT/CA2007/000240 CA2007000240W WO2007093059A1 WO 2007093059 A1 WO2007093059 A1 WO 2007093059A1 CA 2007000240 W CA2007000240 W CA 2007000240W WO 2007093059 A1 WO2007093059 A1 WO 2007093059A1
Authority
WO
WIPO (PCT)
Prior art keywords
face shield
apertures
adjustment member
helmet
sealing element
Prior art date
Application number
PCT/CA2007/000240
Other languages
English (en)
Other versions
WO2007093059A8 (fr
Inventor
Stéphane DION
Original Assignee
Jiangmen Pengcheng Helmets Ltd.
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 Jiangmen Pengcheng Helmets Ltd. filed Critical Jiangmen Pengcheng Helmets Ltd.
Publication of WO2007093059A1 publication Critical patent/WO2007093059A1/fr
Publication of WO2007093059A8 publication Critical patent/WO2007093059A8/fr

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
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/24—Visors with means for avoiding fogging or misting

Definitions

  • the present invention generally relates to cold climate protective headwear including helmets such as motorcycle and snowmobile helmets provided with a face shield. More particularly but not exclusively, the present invention is concerned with an air evacuation assembly for such helmets in view of decreasing the fogging of the inside surface of the face shield.
  • helmets that are provided with a clear or tinted face shield.
  • these helmets are generally provided with apertures that may be open or closed by the user to evacuate the moisture laden air.
  • Such helmets include a ventilation system for a closed helmet provided with an outlet valve that allows a control of the amount of air exiting the helmet.
  • Other helmets provide an air intake that is provided with a shutter plate that has three psritions (closed, partially open and fully opened). Notches and projections can maintain the shutter plate in the desired position.
  • Face shields specially designed for winter use are also known and are provided with defogging features; two separate air inlets are provided and one of these inlets is provided with a closing mechanism. [0004]
  • the adjustment of the opening is often confusing and requires guesswork in the adjustment of the air flow.
  • An object of the present invention is therefore to provide an air evacuation assembly for full-face helmets provided with a face shield.
  • a protective headwear comprising: a helmet; a face shield mounted to the helmet; and an air evacuation assembly mounted to the face shield and comprising apertures for providing air within the helmet to evacuate therefrom, an adjustment member for closing, partially opening and/or fully opening the apertures during actuation thereof, and a control element mounted to the adjustment member for actuation thereof; wherein movement of the control element provides for so actuating said adjustment member as to close, partially open and/or fully open the apertures thereby selectively avoiding air evacuation, providing partial air evacuation, and/or providing maximum air evacuation from the helmet.
  • a face shield for a helmet comprising an evacuation assembly, the evacuation assembly comprising apertures for providing air within the helmet to evacuate therefrom, an adjustment member for closing, partially opening and/or fully opening the apertures during actuation thereof, and a control element mounted to the adjustment member for actuation thereof, wherein movement of the control element provides for so actuating the adjustment member as to close, partially open and/or fully open the apertures thereby selectively avoiding air evacuation, providing partial air evacuation, and/or providing maximum air evacuation from the helmet.
  • an evacuation assembly for being mounted to the face shield of a helmet, the evacuation assembly comprising: a sealing element for being mounted to the face shield and configured to a abut the external surface of the helmet, the sealing element comprising apertures for providing for air to evacuate from the helmet, an adjustment member for being movingly mounted to the face shield and adjacently positioned relative to the sealing element, the adjustment member comprising a solid portion and a portion having openings, the openings corresponding to the apertures, the adjustment member being so moveable as to close the apertures with the solid portion thereof, or as to partially open the apertures with the openings thereof or as to fully open the apertures with the openings thereof, and a control element for being mounted to the face shield and mounted to the adjustment member for actuation thereof; wherein, movement of the control element provides for so actuating the adjustment member as to close, partially open and/or fully open the apertures thereby selectively avoiding air evacuation, providing partial air evacuation, and/or providing maximum air evacuation from
  • Figure 1 is a perspective view illustrating a full-face helmet provided with a face shield that includes an air evacuation assembly according to an illustrative embodiment of the present invention
  • Figure 2 is an exploded view of the face shield of the helmet of Figurei ;
  • Figure 3 is a sectional view taken along line 3-3 of Figure 1 ;
  • Figure 4 is a close up view of a portion of the helmet of Figure 1 illustrating the control of the air evacuation assembly
  • Figure 5 is a elevation view illustrating the air evacuation assembly in a minus 30 degree position
  • Figure 6 is a elevation view similar to Figure 5, illustrating the air evacuation assembly in a minus 15 degree position
  • Figure 7 is a elevation view similar to Figure 5, illustrating the air evacuation assembly in a zero degree position
  • Figure 8 is an exploded perspective view of a face shield according to a second illustrative embodiment of the present invention.
  • Figure 9 is a perspective view of the face shield of Figure 8. DETAILED DESCRIPTION OF THE ILLUSTRATIVE EMBODIMENTS
  • the present invention is concerned with an air evacuation assembly mounted to the face shield of a cold climate full-face helmet.
  • the air evacuation assembly includes apertures that may be closed, partially open or fully open via a control button depending on the outside temperature. Accordingly the user may easily determine at which position to set the control button simply by reading a conventional thermometer.
  • Figure 1 of the appended drawings illustrates a protective headwear such as a full-face helmet 10 provided with a face shield 12 mounted thereto, the face shield 12 provided with an air evacuation assembly 11 according to an illustrative embodiment of the present invention.
  • the air evacuation assembly 11 includes apertures as will be explained herein.
  • the face shield 12 includes a frame
  • a control element or button 16 for the air evacuation assembly a first transparent layer 18 bonded to a secondary frame 20, a second transparent layer 22 bonded to the first transparent layer 18, a sealing element 24, an adjustment member such as a moveable or slidable member 26 associated with the control button 16 for movements therewith and a fastener 28 mounting the slidable member 26 to the frame 14.
  • the frame 14 includes a channel 30 in which the sealing element 24 may be mounted to via an adhesive (not shown).
  • the sealing element 24 is typically a closed cell foam element provided with notches 32 (see Figure 2) the purpose of which will be described hereinbelow.
  • the channel 30 is not continuous but is also provided with notches 34.
  • notches 32 and 34 comprise the apertures that are to be closed, partially open and fully open within the context of the present invention. These apertures when open lead to the external environment as will be explained herein.
  • the sealing element 24 includes a helmet abutting surface 36 that contacts the external surface of the helmet 10 when the face shield 12 is in the closed position illustrated in Figure 1.
  • FIG. 3 Also visible from Figure 3 is a smaller continuous channel 38 configured and sized as to receive the slidable member 26 therein.
  • the slidable member 26 includes generally triangular notches 40 so positioned as to correspond to the notches 32 and 34 of the member 24 and channel 30, respectively.
  • the slidable member 26 also includes a projection 42 that is used to removably secure the member 26 to the frame 14 via the fastener 28 as can be seen from Figure 3. It is to be noted that the fastener 28 does not prevent the slidable member 26 to slide in the channel 38.
  • FIG 3 also illustrates the gap between the first and second transparent layers 18 and 22, respectively Indeed, the second transparent layer 22 is mounted to the first transparent layer 18 via an adhesive provided on the periphery of the second transparent layer 22.
  • FIG 4 is a close up illustration of the control button 16 of the face shield 12.
  • the control button 16 includes a fixed portion 46 and a movable portion 48.
  • the fixed portion 46 includes temperature indications 50 marked both in the Celsius and Fahrenheit scales.
  • the movable portion 48 which may be actuated by the user, includes a pointer 52.
  • control button 16 is illustrated as a three-position button indicating three different temperatures (zero, minus 15 and minus 30 degrees Celsius), the number of positions and the temperature corresponding to these positions could be modified.
  • the slidable element 26 further includes a rectangular aperture 54 provided at an end thereof. This aperture is designed to be connected to an inwardly projecting element 56 of the movable portion 48 of the control button 16 (see Figures 5 to 7) This interconnection allows the user to control the slidable movement of the slidable member 26 via the control button 16.
  • Figure 5 illustrates the air evacuation assembly when the control button 16 is in the minus 30 degrees position.
  • the air evacuation assembly In this extremely cold position, since there is less moisture in the air, the air evacuation assembly is completely closed. Accordingly, the notches 40 of the slidable member 26 are not registering with the notches 34 of the channel 30. As such, the solid portion of the slidable member 26 is positioned above notches 34. Therefore, virtually no air is evacuated from the helmet via the air evacuation assembly.
  • extremely cold temperature such as minus 30 degrees Celsius, it is interesting to restrict the flow of air inside the helmet for the comfort of the helmet wearer or user.
  • FIG. 6 illustrates the air evacuation assembly when the control button 16 is in the minus 15 degrees position.
  • the air evacuation assembly In this moderately cold position, since there is a some moisture in the air, the air evacuation assembly is partially open. Accordingly, the notches 40 of the slidable member 26 are partially registering with the notches 34 of the channel 30. Hence, the portion of the slidable member 26 having openings (such as notches 40) is partially positioned above the notches 34. Therefore, some air is evacuated from the helmet via the air evacuation assembly. It is to be noted that there is still some restriction to the evacuation of the air from the helmet since the notches 40 are not fully registering with the notches 34. At moderately cold temperatures, such as minus 15 degrees Celsius, it is interesting to partially restrict the flow of air inside the helmet for the comfort of the helmet wearer.
  • FIG. 7 illustrates the air evacuation assembly when the control button 16 is in the zero degree position.
  • the air evacuation assembly In this relatively warm position, since there is a lot of moisture in the air, the air evacuation assembly is completely open. Accordingly, the notches 40 of the slidable member 26 are fully registering with the notches 34 of the channel 30. Therefore, the maximal quantity of air is evacuated from the helmet via the air evacuation assembly.
  • relatively warm temperatures such as zero degree Celsius
  • the air inside the helmet is laden with moisture and should be flowing continuously.
  • the helmet wearer's comfort is not problematic at this relatively warm temperature.
  • FIG. 8 and 9 of the appended drawings a face shield 100 according to a second illustrative embodiment of the present invention will be briefly described. It is to be noted that since the face shield 100 is very similar to the face shield 12 of Figures 1 to 7, only the difference therebetween will be described herein, for concision purpose.
  • the face shield 100 includes a third transparent layer 102 removably installed inside the second layer 22.
  • This third transparent layer 102 is, for example, colored and/or polarized for the wearer's comfort and/or safety.
  • the layer 102 is generally flat and is made of a resilient material to allow it to be curved.
  • the layer 102 includes four apertures 104 that are configured, positioned and sized as to be removably inserted in posts 106 that are mounted to the first and second layers 18 and 22 via fasteners 108.
  • the helmet user may therefore change the color of the transparent portion of the face shield at will and without tools.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

Ensemble d'évacuation d'air pour écran facial de casque. L'ensemble d'évacuation d'air comprend des ouvertures, un élément de réglage et un élément de commande. Les ouvertures permettent à l'air se trouvant à l'intérieur du casque d'en être évacué. L'élément de réglage est destiné à fermer, ouvrir partiellement et/ou totalement les ouvertures. L'élément de commande actionne l'élément de réglage. L'utilisateur peut ainsi sélectivement empêcher l'évacuation de l'air, réaliser une évacuation partielle et/ou une évacuation complète de l'air hors du casque. Dès lors, l'utilisateur peut aisément déterminer sur quelle position régler l'élément de commande à la simple lecture d'un thermomètre ordinaire. L'invention concerne également à un casque de protection comme un casque intégral pour climat froid muni d'un tel ensemble d'évacuation d'air. L'invention concerne enfin également des écrans faciaux disposant de tels ensembles d'évacuation d'air.
PCT/CA2007/000240 2006-02-16 2007-02-16 Ensemble d'évacuation d'air pour climat froid WO2007093059A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77368106P 2006-02-16 2006-02-16
US60/773,681 2006-02-16

Publications (2)

Publication Number Publication Date
WO2007093059A1 true WO2007093059A1 (fr) 2007-08-23
WO2007093059A8 WO2007093059A8 (fr) 2007-10-18

Family

ID=38371157

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2007/000240 WO2007093059A1 (fr) 2006-02-16 2007-02-16 Ensemble d'évacuation d'air pour climat froid

Country Status (1)

Country Link
WO (1) WO2007093059A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0474941A1 (fr) * 1990-08-31 1992-03-18 Shoei Kako Kabushiki Kaisha Casque équipé d'un système de ventilation
US5394566A (en) * 1993-12-14 1995-03-07 Hong Jin Crown America, Inc. Cold weather ventilation system for faceshield defogging
US5694650A (en) * 1995-04-13 1997-12-09 Hong Jin Crown America, Inc. Heated double lens face shield with passive defogging
EP1462017A1 (fr) * 2003-03-24 2004-09-29 HJC Co., Ltd. Structure de prise d'air pour casque

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0474941A1 (fr) * 1990-08-31 1992-03-18 Shoei Kako Kabushiki Kaisha Casque équipé d'un système de ventilation
US5394566A (en) * 1993-12-14 1995-03-07 Hong Jin Crown America, Inc. Cold weather ventilation system for faceshield defogging
US5694650A (en) * 1995-04-13 1997-12-09 Hong Jin Crown America, Inc. Heated double lens face shield with passive defogging
EP1462017A1 (fr) * 2003-03-24 2004-09-29 HJC Co., Ltd. Structure de prise d'air pour casque

Also Published As

Publication number Publication date
WO2007093059A8 (fr) 2007-10-18

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