EP3459376A1 - Interverrouillage de doublure de gestion d'énergie de casque co-moulé - Google Patents

Interverrouillage de doublure de gestion d'énergie de casque co-moulé Download PDF

Info

Publication number
EP3459376A1
EP3459376A1 EP18193569.3A EP18193569A EP3459376A1 EP 3459376 A1 EP3459376 A1 EP 3459376A1 EP 18193569 A EP18193569 A EP 18193569A EP 3459376 A1 EP3459376 A1 EP 3459376A1
Authority
EP
European Patent Office
Prior art keywords
liner
inner liner
energy management
helmet
outside surface
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Withdrawn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
EP18193569.3A
Other languages
German (de)
English (en)
Inventor
Samuel J. Shaffer
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.)
Bell Sports Inc
Original Assignee
Bell Sports 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 Bell Sports Inc filed Critical Bell Sports Inc
Publication of EP3459376A1 publication Critical patent/EP3459376A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • A42B3/06—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
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A42B3/062—Impact-absorbing shells, e.g. of crash helmets with reinforcing means
    • A42B3/063—Impact-absorbing shells, e.g. of crash helmets with reinforcing means using layered structures
    • 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
    • A42B3/08—Chin straps or similar retention devices
    • 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
    • A42B3/12—Cushioning devices
    • A42B3/125—Cushioning devices with a padded structure, e.g. foam
    • 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
    • A42B3/12—Cushioning devices
    • A42B3/125—Cushioning devices with a padded structure, e.g. foam
    • A42B3/128—Cushioning devices with a padded structure, e.g. foam with zones of different density
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42C—MANUFACTURING OR TRIMMING HEAD COVERINGS, e.g. HATS
    • A42C2/00—Manufacturing helmets by processes not otherwise provided for
    • A42C2/002—In-mould forming

Definitions

  • aspects of this document relate generally to assembling multiple helmet liners, and more specifically to a helmet comprising a co-molded energy management liner and methods for assembling such a helmet.
  • Protective headgear and helmets have wide uses. Multiple liners are used for comfort and protection. To assemble a multi-liner helmet, the liners are glued together or fastened together through components like plastic parts or pins, which requires additional manufacturing parts and steps. Further, the glue or the fastening components may deteriorate with time or use and lose its strength in holding the liners together. As a result, the multiple liners may separate and fall apart.
  • a helmet may comprise a helmet body and a fit system, an outer shell and an in-molded energy management liner inside the outer shell.
  • the in-molded energy management liner may include an inner liner of expanded polypropylene (EPP) and an outer liner of expanded polystyrene (EPS) with at least one hole through the inner liner, an inside surface, an outside surface, and sides connecting the inside surface with the outside surface.
  • the outer liner may be formed around the inner liner such that the outer liner extends through the at least one hole and around at least two of the sides of the inner liner, covering a majority of the outside surface and at least a portion of the inside surface.
  • the fit system is disposed within the in-molded energy management liner and coupled to the helmet body.
  • Particular embodiments may comprise one or more of the following features.
  • One or more standoffs extending outward through the outside surface of the outer liner. Both the inner liner and the outer liner may be exposed on an inside of the in-molded energy management liner.
  • the outer liner may engage the inner liner mechanically and without a chemical bond.
  • the outer liner extending at least partially around all of the sides of the inner liner.
  • an in-molded energy management liner may comprise an inner liner of expanded polypropylene (EPP) and an outer liner of expanded polystyrene (EPS).
  • the inner liner of expanded polypropylene (EPP) may have at least one hole through the inner liner, an inside surface, an outside surface, and sides connecting the inside surface with the outside surface.
  • the outer liner of expanded polystyrene (EPS) may be formed around the inner liner such that the outer liner extends through the at least one hole and around at least two of the sides of the inner liner, covering a majority of the outside surface and at least a portion of the inside surface.
  • Particular embodiments may comprise one or more of the following features.
  • One or more standoffs extending outward from the inner liner through the outside surface of the outer liner. Both the inner liner and the outer liner may be exposed on an inside of the in-molded energy management liner.
  • the outer liner may engage the inner liner mechanically and without a chemical bond.
  • the outer liner may extend at least partially around all of the sides of the inner liner.
  • a method of assembling a multi-liner helmet may comprise injecting a first material into an inner-liner mold to form an inner liner, placing the inner liner in an outer-liner mold, and injecting a second material different from the first material into the outer-liner mold to form an outer liner around the inner liner, wherein the outer liner extends through at least one hole in the inner liner and around at least two of sides of the inner liner, covering a majority of an outside surface of the inner liner, and both the outer liner and the inner liner are exposed on an inside of an in-molded energy management liner comprising the inner liner and the outer liner.
  • the first material may be expanded polypropylene (EPP) and the second material may be expanded polystyrene (EPS).
  • EPP expanded polypropylene
  • EPS expanded polystyrene
  • the inner liner may comprise standoffs extending outward and injecting a second material comprises injecting the second material such that the standoffs extend outward through an outside surface of the outer liner.
  • a helmet may comprise a helmet body with an outer shell and an in-molded energy management liner inside the outer shell that includes an inner liner of a first material and an outer liner of a second material different from the first material.
  • the inner liner may have at least one hole through the inner liner, an inside surface, an outside surface, and sides connecting the inside surface with the outside surface.
  • the outer liner may be formed around the inner liner such that the outer liner extends through the at least one hole and around at least two of the sides of the inner liner, covering a majority of the outside surface and at least a portion of the inside surface, and both the inner liner and the outer liner are exposed on an inside of the in-molded energy management liner.
  • a fit system disposed within the in-molded energy management liner and coupled to the helmet body.
  • the first material may be EPP and the second material may be EPS.
  • the inner liner may comprise one or more standoffs extending outward through the outside surface of the outer liner.
  • the outer liner may engage the inner liner mechanically and without a chemical bond.
  • the outer liner may extend at least partially around all of the sides of the inner liner.
  • noun, term, or phrase is intended to be further characterized, specified, or narrowed in some way, such noun, term, or phrase will expressly include additional adjectives, descriptive terms, or other modifiers in accordance with the normal precepts of English grammar. Absent the use of such adjectives, descriptive terms, or modifiers, it is the intent that such nouns, terms, or phrases be given their plain, and ordinary English meaning to those skilled in the applicable arts as set forth above.
  • Protective head gear and helmets have been used in a wide variety of applications and across a number of industries including recreation, sports, athletics, construction, mining, military defense, and others, to prevent damage to users' heads and brains. Damage and injury to a user can be prevented or reduced by preventing hard objects, sharp objects, or both, from directly contacting the user's head, and also by absorbing, distributing, or otherwise managing energy of an impact between the object and the user's head. Straps or webbing are typically used to allow a user to releasably wear their helmet, and to ensure the helmet remains on the user's head during an impact.
  • Protective headgear or helmets can be used for a snow skier, a cyclist, football player, hockey player, baseball player, lacrosse player, polo player, climber, auto racer, motorcycle rider, motocross racer, snowboarder or other snow or water athlete, sky diver or any other athlete, recreational or professional, in a sport.
  • Other non-athlete users such as workers involved in industry, including without limitation construction workers or other workers or persons in dangerous work environments can also benefit from the protective headgear described herein, as well as the system and method for providing the protective head gear.
  • Helmets function to provide protection while minimizing interference with an activity.
  • the shape of a helmet may be adapted to provide both protection and comfort (e.g. ventilation, size, etc.).
  • Some helmets are made of two or more bodies of energy-absorbing material formed in shapes that would be difficult, if not impossible, to achieve in a single molded piece.
  • the protective shell may be formed of an energy absorbing material such as expanded polystyrene (EPS), expanded polyurethane (EPU), expanded polyolefin (EPO), expanded polypropylene (EPP), or other suitable material.
  • EPS expanded polystyrene
  • EPU expanded polyurethane
  • EPO expanded polyolefin
  • EPP expanded polypropylene
  • the energy absorbing material can be used as part of a hard-shell helmet such as skate bucket helmets, motorcycle helmets, snow sport helmets, football helmets, batting helmets, catcher's helmets, or hockey helmets, and include an additional outer protective shell disposed outside, or over, the protective shell.
  • the energy absorbing material may comprise one or more layers of EPP and provide more flexibility.
  • the energy absorbing material may be part of an in-molded helmet such as a bicycle helmet or cycling helmet.
  • An outer shell layer such as a layer of stamped polyethylene terephthalate or a polycarbonate shell, may be included on an outer surface of the protective shell of the helmet and be bonded directly to the energy management liner.
  • a multi-liner helmet having a co-molded energy management liner, as well as a method of assembling such a helmet.
  • a helmet 100 comprises a helmet body 102 ( FIG. 1 ).
  • a helmet 100 may further comprise a fit system 400.
  • the helmet body 102 comprises an outer shell 104 and an in-molded or co-molded energy management liner, energy absorbing liner, or impact liner 200 inside the outer shell 104.
  • the fit system 400 may be disposed within the in-molded energy management liner 200 and coupled to the helmet body 102.
  • the in-molded energy management liner 200 comprises an inner liner 202 and an outer liner 300 ( FIGs. 2 and 3 ).
  • the outer liner 300 is depicted as transparent to show the structure of the inner liner 202.
  • the inner liner 202 and the outer liner 300 may be formed by molding.
  • the inner liner 202 comprises an inside surface 210, an outside surface 212, and sides 214 connecting the inside surface 210 with the outside surface 212.
  • the inner liner 202 comprises at least one hole 208 through the inner liner 202.
  • the outer liner 300 may be formed around the inner liner 202 such that the outer liner 300 extends through the holes 208 and around at least two of the sides 214 of the inner liner 202, covering a majority of the outside surface 212 and at least a portion of the inside surface 210. In some embodiments, the outer liner 300 extends at least partially around all of the sides 214 of the inner liner 202. In some embodiments, both the inner liner 202 and the outer liner 300 are exposed on the inside 216 of the in-molded energy management liner 200 ( FIG. 4 ). In FIG. 4 , the inner liner 202 is depicted in light gray and the outer liner 300 is depicted in dark gray.
  • the inner liner 202 is made of a first material.
  • the outer liner 300 is made of a second material.
  • the first material and second materials may be different.
  • the first and second materials may be of any types of material used to manage energy impact to the helmet 100.
  • the first and second materials may be any types of material that can be expanded and, during the process of molding, formed into bigger objects.
  • the pre-expanded materials are also called beads.
  • the first or second material may be EPS, EPP, EPU, or EPO.
  • the first material is EPP and the second material is EPS.
  • the inner liner may further comprise one or more standoffs 204.
  • the standoffs 204 extend outward through the outside surface 302 of the outer liner 300.
  • the standoffs 204 can be seen extending outward through the outside surface 302 of the outer liner 300.
  • the standoffs may extend from the sides of the inner liner through the sides of the outer liner (not shown). The standoffs help hold the inner liner in place inside an outer-liner mold when the second materials are injected, often at a high speed, into the outer liner mold.
  • the inner liner may be held in place in an outer-liner mold through other methods or structures, such as adhesive tapes and hooks-and-loops fasteners.
  • Method 500 comprises injecting a first material into an inner-liner mold to form an inner liner (502), placing the inner liner in an out-liner mold (504), and injecting a second material different from the first material into the outer-liner mold to form an outer liner around the inner liner (506).
  • the outer liner formed by the method 500 may extend through at least one hole in the inner liner and around at least two sides of the inner liner, covering a majority of an outside surface of the inner liner, and both the inner liner and the outer liner are exposed on an inside of an in-molded energy management liner comprising the inner liner and the outer liner.
  • the first material is EPP and the second material is EPS.
  • the inner-liner comprises one or more standoffs extending outward and injecting a second material further comprises injecting the second material such that the standoffs extend outward through an outside surface of the outer liner.
  • the two materials may stay separate and not form a chemical bond under heat and pressure during molding.
  • the holes 208 of the inner liner 202 allow the second material for the outer liner to flow through and accumulate on the inside surface 210 of the inner liner 202 ( FIGs. 3 and 4 ).
  • the outer liner 300 is formed around, through, and under the inner liner 202 during the molding, and the two liners 202 and 300 are interlocked and held together by mechanical forces. No additional manufacturing parts or steps are required to hold the liners in the energy management liner together.
  • the multi-liner helmets made in this manner are also more compact and lighter than those manufactured with a conventional method. Further, the design of the liners, such as the geometries of the liners, is not constrained by the fastening components used to fasten them together and, thus, more design freedom is provided.
  • helmets, co-molded energy management liners, and methods of assembling a helmet may comprise any shape, size, style, type, model, version, class, grade, measurement, concentration, material, quantity, the like as is known in the art for such apparatus, methods, and implementing components, and/or the like consistent with the intended operation of the helmet, co-molded energy management liners, and methods of assembling a helmet may be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Helmets And Other Head Coverings (AREA)
EP18193569.3A 2017-09-22 2018-09-10 Interverrouillage de doublure de gestion d'énergie de casque co-moulé Withdrawn EP3459376A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15/713,517 US20190090574A1 (en) 2017-09-22 2017-09-22 Interlocking co-molded helmet energy management liner

Publications (1)

Publication Number Publication Date
EP3459376A1 true EP3459376A1 (fr) 2019-03-27

Family

ID=63556255

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18193569.3A Withdrawn EP3459376A1 (fr) 2017-09-22 2018-09-10 Interverrouillage de doublure de gestion d'énergie de casque co-moulé

Country Status (3)

Country Link
US (1) US20190090574A1 (fr)
EP (1) EP3459376A1 (fr)
CN (1) CN109527690A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11399589B2 (en) 2018-08-16 2022-08-02 Riddell, Inc. System and method for designing and manufacturing a protective helmet tailored to a selected group of helmet wearers
CA3169309A1 (fr) 2018-11-21 2020-05-28 Riddell, Inc. Casque de sport recreatif de protection avec des composants fabriques de facon additive pour gerer des forces d'impact
USD927084S1 (en) 2018-11-22 2021-08-03 Riddell, Inc. Pad member of an internal padding assembly of a protective sports helmet
US11849793B2 (en) * 2019-03-29 2023-12-26 Bell Sports, Inc. Flexible slip plane for helmet energy management liner
KR102052335B1 (ko) * 2019-05-30 2019-12-06 김윤호 개량형 다중 레이어 안전 헬멧
USD938657S1 (en) * 2020-05-07 2021-12-14 Bell Sports, Inc. Cycling helmet with visor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379262A1 (fr) * 1977-02-07 1978-09-01 Finquel Michel Casque multicoques notamment pour motocycliste
US20150250248A1 (en) * 2014-03-07 2015-09-10 Bell Sports, Inc. Multi-body helmet construction and strap attachment method
CN205963032U (zh) * 2016-08-17 2017-02-22 东莞市益安运动用品有限公司 一种蒸汽成型的双层减震运动头盔
EP3175728A1 (fr) * 2015-12-04 2017-06-07 Zedel Casque de protection multi-matiere

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345338A (en) * 1979-10-05 1982-08-24 Gentex Corporation Custom-fitted helmet and method of making same
CA2043725C (fr) * 1991-05-31 1997-08-26 Louis Garneau Casque de protection pour cyclistes
US5351342A (en) * 1992-02-03 1994-10-04 Louis Garneau Protective headgear
US5619756A (en) * 1996-03-29 1997-04-15 9001 6262 Quebec Inc. Cyclist helmet with multiple apertures rim
US5794271A (en) * 1996-10-17 1998-08-18 Hastings; Dale Helmet shell structure
US5815846A (en) * 1996-11-27 1998-10-06 Tecno-Fluidos, S.L. Resistant helmet assembly
GB0116738D0 (en) * 2001-07-09 2001-08-29 Phillips Helmets Ltd Protective headgear and protective armour and a method of modifying protective headgear and protective armour
US7950073B2 (en) * 2007-08-06 2011-05-31 Xenith, Llc Headgear securement system
US8739317B2 (en) * 2010-04-19 2014-06-03 Patrick Abernethy Rebound-dampening headgear liners with positioning feature
US10561192B2 (en) * 2011-02-09 2020-02-18 6D Helmets, Llc Omnidirectional energy management systems and methods
CN103635112B (zh) * 2011-02-09 2015-12-23 6D头盔有限责任公司 头盔全向能量管理系统
US9572391B2 (en) * 2012-03-30 2017-02-21 Daniel Malcolm McInnis Protective helmet and insert with concussion reduction features
US20140223641A1 (en) * 2013-02-10 2014-08-14 Blake Henderson Helmet with custom foam liner and removable / replaceable layers of crushable energy absorption material
US10736373B2 (en) * 2013-08-13 2020-08-11 Smith Optics, Inc. Helmet with shock absorbing inserts
US9795180B2 (en) * 2013-09-27 2017-10-24 Bell Sports, Inc. System and method for coupling helmet components and liners
US10362829B2 (en) * 2013-12-06 2019-07-30 Bell Sports, Inc. Multi-layer helmet and method for making the same
JP2017509808A (ja) * 2014-04-01 2017-04-06 ベル スポーツ， インコーポレイテッド ヘルメット用係止ライナー
US9961952B2 (en) * 2015-08-17 2018-05-08 Bauer Hockey, Llc Helmet for impact protection
US20170265556A1 (en) * 2016-03-18 2017-09-21 Fox Head, Inc. Multi-layer progressive padding
CN109640726B (zh) * 2016-06-07 2022-01-11 贝尔运动股份有限公司 机械接合的头盔主体及其方法
US10010126B1 (en) * 2017-06-29 2018-07-03 Bell Sports, Inc. Protective helmet with integrated rotational limiter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379262A1 (fr) * 1977-02-07 1978-09-01 Finquel Michel Casque multicoques notamment pour motocycliste
US20150250248A1 (en) * 2014-03-07 2015-09-10 Bell Sports, Inc. Multi-body helmet construction and strap attachment method
EP3175728A1 (fr) * 2015-12-04 2017-06-07 Zedel Casque de protection multi-matiere
CN205963032U (zh) * 2016-08-17 2017-02-22 东莞市益安运动用品有限公司 一种蒸汽成型的双层减震运动头盔
EP3284359A1 (fr) * 2016-08-17 2018-02-21 Eon Sporting Goods Co., Ltd Casque de sports amortisseur de chocs à double couche formé à la vapeur

Also Published As

Publication number Publication date
CN109527690A (zh) 2019-03-29
US20190090574A1 (en) 2019-03-28

Similar Documents

Publication Publication Date Title
EP3459376A1 (fr) Interverrouillage de doublure de gestion d'énergie de casque co-moulé
US10398187B1 (en) Adjustable elastomeric helmet multi-liner retainer and method of assembling multi-liner helmet
US11998079B2 (en) Locking liner for helmet
US9795180B2 (en) System and method for coupling helmet components and liners
US11589631B2 (en) Helmet with integrated shoulder pad
US11103023B2 (en) Helmet strap attachment method and device
EP3446585B1 (fr) Visières de casque sans clip
US11812812B2 (en) Helmet goggle strap holder
US11419380B2 (en) Helmet with front end fit system elastic connectors
US11103024B2 (en) Helmet with magnetically-operated air vent
EP3217827B1 (fr) Procédé et dispositif de fixation de jugulaire de casque

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): 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

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20190820

RBV Designated contracting states (corrected)

Designated state(s): 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

17Q First examination report despatched

Effective date: 20200103

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20200331