EP3498120A1 - Fahrradhelm mit belüftungsplatte - Google Patents

Fahrradhelm mit belüftungsplatte Download PDF

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Publication number
EP3498120A1
EP3498120A1 EP18211541.0A EP18211541A EP3498120A1 EP 3498120 A1 EP3498120 A1 EP 3498120A1 EP 18211541 A EP18211541 A EP 18211541A EP 3498120 A1 EP3498120 A1 EP 3498120A1
Authority
EP
European Patent Office
Prior art keywords
bicycle helmet
helmet
plate
approximately
rails
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.)
Withdrawn
Application number
EP18211541.0A
Other languages
English (en)
French (fr)
Inventor
Michael Joseph KRYNOCK
Nicholas Reid Gosseen
Alan OKAMURA
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.)
Specialized Bicycle Components Holding Co Inc
Original Assignee
Specialized Bicycle Components Inc
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 Specialized Bicycle Components Inc filed Critical Specialized Bicycle Components Inc
Publication of EP3498120A1 publication Critical patent/EP3498120A1/de
Withdrawn legal-status Critical Current

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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
    • A42B3/0493—Aerodynamic helmets; Air guiding means therefor
    • 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
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • 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
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A42B3/066—Impact-absorbing shells, e.g. of crash helmets specially adapted for cycling helmets, e.g. for soft shelled helmets
    • 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
    • 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

  • the present invention relates generally to the field of bicycle helmets and specifically to bicycle helmets designed for improved ventilation.
  • Bicycle helmets are designed to protect a user's head in the event of an accident.
  • Bicycle helmets typically include a thick liner of expanded polystyrene (EPS) covered with a thin shell of a hard plastic material, such as lexan, polycarbonate, or acrylonitrile butadiene styrene (ABS).
  • EPS expanded polystyrene
  • ABS acrylonitrile butadiene styrene
  • bicycle helmets may be designed to be lightweight and/or to have ventilation so that the user's head is cooled while riding.
  • ventilation may include inlet ventilation ports on the front of the bicycle helmet and outlet ventilation ports on the rear of the bicycle helmet, thereby facilitating the flow of air through the bicycle helmet.
  • ventilation ports have generally become larger and more numerous in order to increase the amount of air flowing through the helmet.
  • struts As the size of ventilation ports have increased, reinforcing struts have been added to enhance the strength of the bicycle helmet. These struts can extend laterally across the ventilation ports in order to provide strength to the underlying liner. Struts can be made of a variety of materials, such as plastic mesh or plastic strip, and the struts are often covered with a layer of EPS.
  • a bicycle helmet has a front portion, a rear portion, an overall length, and an overall width.
  • the bicycle helmet includes a liner having a plurality of vents at the front portion of the bicycle helmet and being impact-absorbing.
  • the bicycle helmet further includes a shell over an outer surface of the liner at the front portion of the bicycle helmet, and a plate over the outer surface of the liner at the rear portion of the bicycle helmet.
  • the plate is devoid of vents in a narrow region starting at approximately 45% to 65% of the overall length from a front of the bicycle helmet and extending to a rear of the bicycle helmet.
  • the narrow region is laterally centered on the bicycle helmet and has a width of approximately 30% to 50% of the overall width.
  • a bicycle helmet has a front portion, a rear portion, an overall length, and an overall width.
  • the bicycle helmet includes a liner including a plurality of rails defining vents at the front portion of the bicycle helmet, and a plurality of struts extending between the plurality of rails.
  • the bicycle helmet further includes a shell over an outer surface of the liner at the front portion of the bicycle helmet, and a plate over the outer surface of the liner at the rear portion of the bicycle helmet.
  • the plate is devoid of vents and defines air channels beneath the plate and between the plurality of rails. The plate extends approximately from a center of the bicycle helmet to a rear of the bicycle helmet.
  • the plate can be made from a very stiff material, such as a carbon fiber composite, and thus substantially adds to the strength and stiffness of the rear portion of the bicycle helmet. As a result of this increased strength and stiffness, less liner material can be needed in this region of the bicycle helmet, resulting in larger air channels for cooling the rider. In addition, the lack of vents in this region of the bicycle helmet results in cooling air being channeled parallel and close to the surface of a user's head, which can enhance the cooling provided by the airflow.
  • a very stiff material such as a carbon fiber composite
  • the bicycle helmet 20 illustrated in Figs. 1-10 comprises a liner 22, a shell 24, and a plate 26.
  • the bicycle helmet 20 can be configured to receive a head of a user, such as, for example, to protect the head of the user from impacts.
  • the bicycle helmet 20 can receive the head of the user at an interior surface 48 ( FIG. 11 ) of the liner 22.
  • the shell 24 and/or the plate 26 can be over (e.g., partially over) and/or secured (e.g., partially secured) to an outer surface of the liner 22 opposite the interior surface 48 ( FIG. 11 ) of the liner 22.
  • part or all of the liner 22 can be omitted from under the plate 26.
  • the bicycle helmet 20 also can include one or more pads between the liner 22 and a user's head to enhance comfort and to absorb sweat.
  • the pad(s) can be located at the interior surface 48 ( FIG. 11 ) of liner 22.
  • head straps and buckles of bicycle helmet 20 are not shown, but can be used for securing the bicycle helmet 20 to a user's head.
  • the liner 22 can surround a portion (e.g., a large portion) of the user's head when bicycle helmet 20 is worn by the user. Further, the liner 22 can be impact-absorbing.
  • the liner 22 can comprise a layer of at least one material.
  • One of more of the material(s) implemented for liner 22 can be lightweight and/or energy-absorbing.
  • one or more of the material(s) implemented for liner 22 can be EPS and/or polyurethane foam.
  • the liner 22 can have a thickness of up to approximately 20 millimeters or more. The thickness can be measured between the interior surface 48 ( FIG. 11 ) and outer surface of the liner 22. In some embodiments, the thickness can be approximately constant. However, in other embodiments, the thickness can vary at different portions of the liner 22.
  • the thickness of the liner 22 under at least part of the plate 26 can be less than the thickness of the liner 22 under at least part of the shell 24.
  • the liner 22 can include a plurality of vents (i.e., ventilation ports) that facilitate airflow through the bicycle helmet 20 when the user is riding.
  • the bicycle helmet 20 can include five longitudinal vents: a center vent 30, right and left frontal vents 32, and right and left temporal vents 34. Each of these longitudinal vents can extend generally from a frontal region (e.g., front portion) 35 of the bicycle helmet 20 to a parietal region (e.g., rear portion) 36 of the bicycle helmet 20, as illustrated in FIGS. 1 and 2 .
  • the five longitudinal vents can divide the liner 22 into six longitudinally extending rails: left and right center rails 40, left and right parietal rails 42, and left and right temporal rails 44.
  • longitudinal vents and/or longitudinally extending rails can be implemented.
  • three longitudinal vents and four longitudinally extending rails can be implemented, or seven longitudinal vents and eight longitudinally extending rails can be implemented
  • the bicycle helmet 20 further can include lateral struts 46 spanning one or more of the longitudinal vents between adjacent rails of the longitudinally extending rails.
  • the lateral struts 46 can be generally thinner (e.g., approximately 5 to 20 mm from the head, upward) than the liner 22.
  • the lateral struts 46 can be the same thickness or thicker than the liner 22.
  • the lateral struts 46 can comprise polycarbonate plastic or another suitable reinforcing material, such as, for example, injected nylon.
  • the lateral struts 46 can be molded into the liner 22 during a process of molding the liner 22.
  • one or more of lateral struts 46 can be implemented for one or more of the longitudinal vents.
  • the shell 24 can be secured to the outer surface of the liner 22.
  • the shell 24 and liner 22 can be bonded together, or the liner 22 can be molded into the shell 24.
  • the shell 24 can comprise polycarbonate that is approximately 0.5 to 1 millimeter thick, but in other embodiments, different or additional materials can be implemented, such as, for example, ultra-high molecular weight polyurethane (e.g., Dyneema composite sold by Royal DSM N.V. of Heerlen, Netherlands)), injected nylon, graphene, ABS, Polyethylene, etc.; and/or a different thickness can be implemented.
  • ultra-high molecular weight polyurethane e.g., Dyneema composite sold by Royal DSM N.V. of Heerlen, Netherlands
  • injected nylon graphene
  • ABS Polyethylene
  • Polyethylene polyethylene
  • the shell 24 can cover the outer surface of the liner 22, except for the region covered by the plate 26, as described below in more detail. In other embodiments, the shell 24 can cover part or all of the region covered by the plate 26. For example, in these embodiments, the plate 26 can cover part of the shell 24 and/or can be secured to part of the shell 24.
  • the plate 26 can be positioned over the parietal, or rear, region 36 and as illustrated in FIG. 2 can provide a connection between rear regions or ends 37 of the center rails 40 and parietal rails 42.
  • the plate 26 can be approximately 1 millimeter to 5 millimeters thick and can be made from at least one material.
  • the material(s) used to implement the plate 26 can be strong and/or impact resistant.
  • the material(s) used to implement the plate 26 can comprise a composite reinforced polymer.
  • Different or additional material(s) can be implemented for the plate 26, such as ultra-high molecular weight polyurethane (e.g., Dyneema composite sold by Royal DSM N.V.
  • a fiberglass fabric and epoxy matrix e.g., Texalium composite sold by Hexcel Corporation of Stamford, Connecticut, United States of America
  • a polypropylene weave composite e.g., Curv composite sold by Propex, Inc. of Chattanooga, Tennessee, United State of America
  • fiberglass a tri-weave of Kevlar/fiberglass/carbon, or polycarbonate folded onto itself with a midlayer for support/adhesion.
  • the plate 26 can be positioned over and/or adjacent the outer surface of the liner 22 over the center rails 40, spaced from the interior surface 48, thereby creating large airflow channels 50 between the longitudinally extending rails.
  • the plate 26 can provide strength and/or impact resistance over the parietal region, thus reducing the amount of material (e.g., a thickness of the liner 22) needed in that region.
  • part or all of the liner 22 can be omitted from under the plate 26 in the airflow channels 50.
  • a thin layer of material e.g., EPS, expanded polypropylene (EPP), ethylene vinyl acetate (EVA), polycarbonate, etc.
  • EPP expanded polypropylene
  • EVA ethylene vinyl acetate
  • polycarbonate etc.
  • the material(s) implemented for the liner 22 under the plate 26 can be the same as a reminder of the liner 22, or in other embodiments, can be different or additional material(s).
  • the plate 26 further can permit reinforcing struts to be reduced or omitted under the plate 26. Accordingly, positioning the plate 26 on the outer surface of the liner 22 can reduce or eliminate the liner 22 under the plate 26, and/or reduce or eliminate reinforcing struts under the plate 26, and as a result, a larger amount of airflow can be accommodated, thereby enhancing the cooling effect and reducing the choking of airflow under the plate 26.
  • the plate 26 can be devoid of vents and/or a portion of the liner 22 under the plate 26, which can encourage airflow close to the user's head (e.g., at interior surface 48 ( FIG. 11 )), instead of out exit vents, thereby enhancing the cooling effect.
  • the portion of the bicycle helmet 20 with no vents can include a narrow region or area 52 and wider region or area 54. The precise dimensions of these regions can vary depending on the size of the bicycle helmet 20, and can be generally proportional to the overall length L1 ( FIG. 7 ) and overall width W1 ( FIG. 4 ) of the bicycle helmet 20.
  • the bicycle helmet 20 can have an overall length L1 of approximately 270 millimeters and/or an overall width W1 of approximately 210 millimeters.
  • the illustrated narrow region 52 can be centered on the bicycle helmet 20 and/or can have a width W2 ( FIGs. 4 & 7 ) of approximately 86 millimeters, which can be approximately 41% of the overall width ( FIG. 4 ) of the bicycle helmet 20.
  • the narrow region 52 can start at the back of the bicycle helmet 20 and/or can have a length L2 ( FIG. 7 ) of approximately 118 millimeters, which can be approximately 44% of the overall length L1 ( FIG. 7 ) of the bicycle helmet 20.
  • the wider region 54 in this example can be centered in the bicycle helmet 20 and/or can have a width W3 ( FIGs. 4 & 7 )) of approximately 174 millimeters, which can be approximately 83% of the overall width W1 ( FIG. 4 ) of the bicycle helmet 20.
  • the wider region 54 can start at the back of the bicycle helmet 20 and/or can have a length L3 ( FIGs. 4 & 7 ) of approximately 85 millimeters, which can be approximately 31% of the overall length L1 ( FIG. 7 ) of the bicycle helmet 20.
  • these ratios of lengths and/or widths can be applied to different dimensions of the overall length L1 ( FIG. 7 ) and the overall width W1 ( FIG. 4 ).
  • the positioning of the narrow and wide regions 52, 54 can vary.
  • the narrow region 52 of the illustrated embodiment starts approximately 56% of the overall length L1 ( FIG. 7 ) from a front or foremost point 58 ( FIG. 7 ) of the bicycle helmet 20, this could vary from approximately 45% to 65% (the length L1 being measured from the front or foremost point 58 to a rear or rearmost point 60).
  • the wider region 54 of the illustrated embodiment starts approximately 69% of the overall length L1 ( FIG. 7 ) from the front or foremost point 58 of the bicycle helmet 20, this could vary from approximately 55% to 80%.
  • the width W2 ( FIGs. 4 & 7 ) of the narrow region 52 can be approximately 30%-50% of the overall width W1 ( FIG. 7 )
  • the width W3 ( FIGs. 4 & 7 ) of the wider region 54 can be approximately 70%-90% of the overall width W1 ( FIG. 4 ).
  • the illustrated airflow channels 50 created by the plate 26 can be large and can facilitate enhanced cooling.
  • Fig. 11 shows the size of the center channel 56 relative to the adjacent center rails 40 rearward of the front of the narrow region 52 of the bicycle helmet 20 (corresponding with the section of Fig. 8 ).
  • the center rails 40 can have a thickness T1 of approximately 25 millimeters and/or have an average width W4 of approximately 21 millimeters, resulting in a total cross sectional area of the center two rails 40 of about 1050 millimeters 2 .
  • the center channel 56 can have a thickness T2 of approximately 25 millimeters and/or a width W5 of approximately 36 millimeters, for a total cross sectional area of approximately 900 millimeters 2 .
  • the area of the airflow channel can be approximately 86% of the cross-sectional area of the liner 22, but that can vary from approximately 70% to 100% in other embodiments.
  • the thicknesses T1 and/or T2, and/or the widths W4 and/or W5 can be different in other embodiments.
  • the total cross sectional area of the center two rails 40 is approximately 1080 millimeters 2
  • the area of the airflow channel can be approximately 89% of the cross-sectional area of the liner 22.
  • Fig. 12 shows the size of the center channel 56 relative to the adjacent center rails 40 rearward of the front of the wider region 54 of the bicycle helmet 20 (corresponding with the section of Fig. 9 ).
  • the center rails 40 can have a thickness T3 of approximately 25 millimeters and/or can have an average width W6 of approximately 20 millimeters, resulting in a total cross sectional area of the center two rails 40 of approximately 1000 millimeters 2 .
  • the center channel 56 can have a thickness T4 of approximately 25 millimeters and a width W7 of approximately 30 millimeters, for a total cross sectional area of about 750mm 2 .
  • the area of the airflow channel is approximately 75% of the cross-sectional area of the liner 22, but that can vary from approximately 65% to 90%, in other embodiments.
  • the thicknesses T3 and/or T4, and/or the widths W6 and/or W7 can be different in other embodiments.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Helmets And Other Head Coverings (AREA)
EP18211541.0A 2017-12-15 2018-12-11 Fahrradhelm mit belüftungsplatte Withdrawn EP3498120A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201762599565P 2017-12-15 2017-12-15

Publications (1)

Publication Number Publication Date
EP3498120A1 true EP3498120A1 (de) 2019-06-19

Family

ID=64664646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18211541.0A Withdrawn EP3498120A1 (de) 2017-12-15 2018-12-11 Fahrradhelm mit belüftungsplatte

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US (1) US20190183203A1 (de)
EP (1) EP3498120A1 (de)
CN (1) CN109998215A (de)

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Publication number Priority date Publication date Assignee Title
AU201711990S (en) * 2016-10-25 2017-04-20 ABUS AUGUST BREMICKER SAƒA¶HNE KG Bicycle helmet
USD902493S1 (en) * 2018-06-18 2020-11-17 Bell Sports, Inc. Cycling helmet
USD897046S1 (en) * 2018-06-18 2020-09-22 Bell Sports, Inc. Cycling helmet
US11812809B2 (en) * 2019-03-29 2023-11-14 Baptist Health South Florida, Inc. Helmet with extended portions configured to protect squamous temporal bones of a wearer
CN112438460A (zh) * 2019-08-29 2021-03-05 东莞市益安运动用品有限公司 一种骑行头盔及加工方法
USD1010231S1 (en) * 2021-02-19 2024-01-02 Specialized Bicycle Components, Inc. Helmet
USD1017142S1 (en) * 2021-05-03 2024-03-05 Bell Sports, Inc. Helmet
USD970820S1 (en) * 2021-08-05 2022-11-22 Jiqiang Gong Helmet

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EP2071968A2 (de) * 2007-12-21 2009-06-24 Dainese S.p.A. Schutzhelm
US20130340151A1 (en) * 2012-06-22 2013-12-26 Specialized Bicycle Components, Inc Bicycle helmet with vent

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Publication number Priority date Publication date Assignee Title
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EP2071968A2 (de) * 2007-12-21 2009-06-24 Dainese S.p.A. Schutzhelm
US20130340151A1 (en) * 2012-06-22 2013-12-26 Specialized Bicycle Components, Inc Bicycle helmet with vent

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Publication number Publication date
CN109998215A (zh) 2019-07-12
US20190183203A1 (en) 2019-06-20

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