[go: up one dir, main page]

WO2007067133A1 - Casque de protection - Google Patents

Casque de protection Download PDF

Info

Publication number
WO2007067133A1
WO2007067133A1 PCT/SE2006/001398 SE2006001398W WO2007067133A1 WO 2007067133 A1 WO2007067133 A1 WO 2007067133A1 SE 2006001398 W SE2006001398 W SE 2006001398W WO 2007067133 A1 WO2007067133 A1 WO 2007067133A1
Authority
WO
WIPO (PCT)
Prior art keywords
helmet
foam
protective helmet
substance
water vapour
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/SE2006/001398
Other languages
English (en)
Inventor
Cecilia Hertz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2007067133A1 publication Critical patent/WO2007067133A1/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
    • A42B3/10—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
    • A42B3/28—Ventilating arrangements

Definitions

  • the present invention relates to a protective helmet according to the introductory portion of the independent claim.
  • Protective helmets such as ski helmets, motorcycle helmets and bicycle helmets are typically constituted by a hard outer surface substance having on its interior an elastic substance such as EPS (Expanded Polystyrene) or EPP (Expanded polypropylene) which is intended to attenuate mechanical chocks.
  • EPS Expanded Polystyrene
  • EPP Expanded polypropylene
  • the helmet fits the wearers head closely and in a crash the retardation of the head inside the helmet is not only attenuated as intended, but the movement of the head inside the helmet tend to have resonant properties, i.e. the head bounces back and forth inside the helmet. This is due to the elasticity of the EPS or EPP and the result my be disadvantageous or in a worst case counteract the intended protective action of the helmet by causing a larger degree of acceleration of the head than what would had been the case without the helmet.
  • a patent related to helmets with a inner cushioning layer attempting to dimmish the problems arising from the elasticity of EPS or EPP is WO03059102 which discloses a helmet with a cushioning layer of a foamized substances such as Silica Aerogel or Carbon Aerogel.
  • the suggested substances are intended to absorb the impact forces by irreversibly deforming rather than being elastic.
  • the disclosed foamized substances are however, like EPS and EPP, unfortunately highly impenetrable to water and water vapour.
  • the invention relates to a protective helmet with a hard outer surface 2 that has a cushioning substance 3 extending over its interior, where the cushioning substance 3 is aluminum foam.
  • the cushioning substance 3 is aluminum foam.
  • the hard outer surface 2 of the helmet may advantageously have ventilation openings (4a-b) to allow water vapour to be emitted through the openings rather than having to permeate a longer distance through the foam and being vented at the edges of the foam.
  • Fig. 1 shows a first embodiment of the protective helmet in cross section
  • Fig. 2 shows an external view of a second embodiment of the protective helmet
  • Fig. 1 shows in cross section a first embodiment of the protective helmet 1 which protects only the neck and top of the head. It has an outer shell 2 of a hard substance such as a polymer, metal or layers of both polymers and metal.
  • the outer shell has on its inside a layer of aluminium foam 3 which upon impact deforms irreversibly and thereby absorbs impact forces, rather than acting as an elastic substance.
  • Fig. 2 shows an external view of a second embodiment of the protective helmet which is embodied to protect the whole head and is provided with a transparent front portion.
  • This embodiment also has an outer shell of a hard substance which on its inside has a layer of aluminium foam.
  • the aluminium foam which has the advantageous property of being permeable to water vapour and water, keeps the wearers head dry by allowing the water vapour to be emitted though openings 4a, 4b in the hard outer shell.
  • the openings on the top 4a and on the sides 4b of the helmet is particularly useful with this embodiment of the helmet as it encloses the whole of the head, but water vapour can obviously also permeate the aluminium foam an be emitted at the edges of the foam rather than through its surface.
  • aluminium foam that allows it to be permeable to water vapour is that it may be described as a contiguous series of interconnected air pockets, defined by a solid structure of aluminium, whereas such substances as EPS or EPP should rather be described as a near solid polymer with embedded, separate, air pockets.
  • the aluminium foam may be produced of different types, having a larger or smaller portion of air per substance volume and also possibly incorporating a larger or smaller percentage of air pockets that are fully enclosed in the aluminium.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

La présente invention concerne un casque de protection présentant une surface extérieure dure (2) ayant une substance de rembourrage protecteur (3) s'étendant sur tout son intérieur, la substance de rembourrage protecteur (3) étant une mousse d'aluminium. La surface extérieure dure (2) du casque peut présenter de façon avantageuse des ouvertures d’aération (4a-b) permettant à la vapeur d'eau de traverser les ouvertures plutôt que d'être absorbée par de s'imprégner profondément dans la mousse avant de s'échapper au niveau des bords de la mousse.
PCT/SE2006/001398 2005-12-09 2006-12-08 Casque de protection Ceased WO2007067133A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0502713 2005-12-09
SESE-0502713-1 2005-12-09

Publications (1)

Publication Number Publication Date
WO2007067133A1 true WO2007067133A1 (fr) 2007-06-14

Family

ID=38123166

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2006/001398 Ceased WO2007067133A1 (fr) 2005-12-09 2006-12-08 Casque de protection

Country Status (1)

Country Link
WO (1) WO2007067133A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107865475A (zh) * 2017-11-22 2018-04-03 国网内蒙古东部电力有限公司电力科学研究院 电力安全帽的制作方法及应用
USD974663S1 (en) 2020-10-05 2023-01-03 Milwaukee Electric Tool Corporation Hard hat
US11583023B2 (en) 2019-11-14 2023-02-21 Milwaukee Electric Tool Corporation Hard hat attachment system and safety equipment
US12156560B2 (en) 2021-03-12 2024-12-03 Milwaukee Electric Tool Corporation Safety headwear systems and accessories

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845916A1 (de) * 1998-10-06 2000-04-13 Juergen Gehrmann Metallschwämme als Schockabsorber für Helme und Prallflächen
WO2006005143A1 (fr) * 2004-07-13 2006-01-19 K.U. Leuven Research & Development Casque de protection

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845916A1 (de) * 1998-10-06 2000-04-13 Juergen Gehrmann Metallschwämme als Schockabsorber für Helme und Prallflächen
WO2006005143A1 (fr) * 2004-07-13 2006-01-19 K.U. Leuven Research & Development Casque de protection

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107865475A (zh) * 2017-11-22 2018-04-03 国网内蒙古东部电力有限公司电力科学研究院 电力安全帽的制作方法及应用
US11583023B2 (en) 2019-11-14 2023-02-21 Milwaukee Electric Tool Corporation Hard hat attachment system and safety equipment
US12029270B2 (en) 2019-11-14 2024-07-09 Milwaukee Electric Tool Corporation Hard hat attachment system and saftey equipment
USD974663S1 (en) 2020-10-05 2023-01-03 Milwaukee Electric Tool Corporation Hard hat
USD1036784S1 (en) 2020-10-05 2024-07-23 Milwaukee Electric Tool Corporation Hard hat
US12156560B2 (en) 2021-03-12 2024-12-03 Milwaukee Electric Tool Corporation Safety headwear systems and accessories

Similar Documents

Publication Publication Date Title
US11033797B2 (en) Football helmet having improved impact absorption
US9603408B2 (en) Football helmet having improved impact absorption
US20140373257A1 (en) Layered protective structures
CN109068783B (zh) 用于头盔和其他物品的保护衬里
US10791786B2 (en) Energy absorbing football helmet
US20170280811A1 (en) Protective Headgear With Non-Rigid Outer Shell
US10834987B1 (en) Protective liner for helmets and other articles
US20120036619A1 (en) Helmet
JP2016023400A (ja) 緩衝ヘルメット
US20080172774A1 (en) Method to produce in-mould helmets and in-mould helmets according to the method
US20120324634A1 (en) Natural Fiber Impact Attenuation System
US20200163399A1 (en) Football helmet
US20160278467A1 (en) Safety Helmet
US20150230535A1 (en) Helmet with varying shock absorption
JP5433642B2 (ja) 衝撃吸収構造体及び人体保護具
US11337481B2 (en) Helmet with foam layer having an array of holes
WO2007067133A1 (fr) Casque de protection
JPH1072719A (ja) 安全帽子
CN214407176U (zh) 一种减震透气的军警防弹头盔
JP2021147731A (ja) ヘルメット
CN1075867A (zh) 可缓冲撞击力的安全帽
JP2021147732A (ja) ヘルメット
KR200474963Y1 (ko) 코르크로 제작된 헬멧
US20180242675A1 (en) Helmet
KR100294330B1 (ko) 모자

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 06835825

Country of ref document: EP

Kind code of ref document: A1