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WO2014081363A1 - Dispositif de protection pour casque - Google Patents

Dispositif de protection pour casque Download PDF

Info

Publication number
WO2014081363A1
WO2014081363A1 PCT/SE2012/051300 SE2012051300W WO2014081363A1 WO 2014081363 A1 WO2014081363 A1 WO 2014081363A1 SE 2012051300 W SE2012051300 W SE 2012051300W WO 2014081363 A1 WO2014081363 A1 WO 2014081363A1
Authority
WO
WIPO (PCT)
Prior art keywords
helmet
energy absorbing
absorbing material
outer shell
protection device
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/SE2012/051300
Other languages
English (en)
Inventor
Jan Woxing
Fredrik Hallander
Oscar HUSS
Stefan Ytterborn
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.)
POC SWEDEN AB
Original Assignee
POC SWEDEN AB
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 POC SWEDEN AB filed Critical POC SWEDEN AB
Priority to PCT/SE2012/051300 priority Critical patent/WO2014081363A1/fr
Priority to EP12888729.6A priority patent/EP2922433A1/fr
Priority to US14/442,386 priority patent/US20150359288A1/en
Publication of WO2014081363A1 publication Critical patent/WO2014081363A1/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
    • A42B3/128—Cushioning devices with a padded structure, e.g. foam with zones of different density
    • 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
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A42B3/069—Impact-absorbing shells, e.g. of crash helmets with soft external layer, e.g. for use in impact sports
    • 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

Definitions

  • the present invention relates generally to a protection device for a helmet.
  • helmets comprising inner portions of energy or shock absorbing material such as for instance expanded polystyrene (EPS ) or expanded polypropylene ( EPP ) to provide light-weight helmets with energy absorbing capabilities.
  • energy or shock absorbing material such as for instance expanded polystyrene (EPS ) or expanded polypropylene ( EPP )
  • EPS expanded polystyrene
  • EPP expanded polypropylene
  • An object of the present invention is to alleviate some of the disadvantages of the prior art and to provide an improved helmet, which improves the helmets ability to protect the users head in a crash-situation after a prolonged use involving repeated impacts.
  • Another object of the invention is to provide a light-weight and aerodynamic helmet that protects the users head during repeated impact from reaching undesirable acceleration levels.
  • a helmet comprising: a rigid outer shell, at least one inner portion comprising a first energy absorbing material, wherein the helmet further comprising a protection device comprising a protective section, wherein the protective section comprises a surface portion, wherein a second energy absorbing material is arranged between the first energy absorbing material and the surface portion of the protective section.
  • the protective section comprises a raised protective section extending from the rigid outer shell.
  • the second energy absorbing material is arranged adjacent the first energy absorbing material.
  • the protection device is formed integrally with the rigid outer shell, wherein the protective section comprises the rigid outer shell, wherein the protective section forms an inner space, wherein the second energy absorbing material is arranged in the inner space.
  • the protection device is arranged on the rigid outer shell, wherein the rigid outer shell is arranged between the first energy absorbing material and the second energy absorbing material.
  • the protective section further comprises an edge portion wherein the surface portion and edge portion forms the inner space and the edge portion has an angle a in relation to the surface portion, wherein a>90D, preferably in the range of 110D - 160D .
  • the protection device comprises a plurality of raised protective sections.
  • the helmet comprises a front portion and a rear portion, wherein the protection device is formed on the front portion of the helmet.
  • the first energy absorbing material comprises Expanded Polypropylene.
  • the second energy absorbing material comprises foam polyurethane, preferably viscoelastic flexible polyurethane.
  • the surface portion comprises a low friction material having a friction coefficient ⁇ against itself, i.e. wherein the countersurface/material is formed by the low friction material, below 0,6, more preferably being in the range of 0,1 ⁇ 0,4.
  • a helmet comprising: a rigid outer shell, at least one inner portion comprising a first energy absorbing material; wherein the rigid outer shell comprises a low friction material.
  • Fig. 1 shows a perspective view of a helmet with a protection device.
  • Fig. 2 shows a cross-section of the helmet according to Fig. 1 .
  • Fig. 3 shows a side view of the helmet according to Fig. 1 . Description of embodiments
  • Fig. 1 shows a perspective view of a helmet 1 comprising a rigid outer shell 2 and inner portion of a first energy absorbing material 4.
  • the outer shell 2 may comprise more than one layer, for example an outer polycarbonate layer and an inner glass fibre reinforced resin layer.
  • the outer shell comprises ABS.
  • the outer shell comprises polycarbonate.
  • the inner portion of energy absorbing material 4 may comprise more than one layer, for example a layer of honeycomb material, a layer of Expanded Polypropylene ( EPP ) or Expanded Polystyrene ( EPS ) , and a layer of soft foamed plastic.
  • EPP Expanded Polypropylene
  • EPS Expanded Polystyrene
  • the inner portion 4 comprises a liner of EPP or another type of foam Polypropylene with elastic properties, i.e. a so called multi-impact material with the ability to return to its original shape after being deformed by impacts on the material.
  • the inner portion 4 comprises a liner of EPS.
  • the helmet 1 further comprises a protection device 3 comprising a protective section 3a or panel.
  • the protective section 3a is raised above the rest of the helmet 1 or at least raised above a separate non-raised section of the outer shell 2, i.e. extends from the non-raised section of the outer shell 2.
  • a raised protective section 3a or point on a raised protective section 3a is radially more distant from a center of the helmet than a non- raised section or point on the non-raised section along the same radial line from the center of the helmet 1.
  • the raised protective section 3a forms a surface portion 3b and an edge portion 3c, wherein the surface portion 3b and the edge portion 3c may be formed by the same or a different material.
  • the surface portion 3b may comprise the entire protective section 3a, i.e. wherein there is no clear edge portion 3c but simply a smooth bending of the surface portion 3b forming the raised protective section 3a.
  • the protection device 3 or panel is formed integrally with the rigid outer shell 2, by a protective section 3a of the rigid outer shell 2.
  • the shape of the outer shell 2 comprising the protective section 3a is injection moulded in one piece.
  • the protective section is raised a distance d above the rest of the outer shell 2, the distance d preferably being in the range 1 mm ⁇ d ⁇ 5 mm, more preferably 2 mm ⁇ d ⁇ 3 mm.
  • the angle between the edge portion 3c and the surface portion 3b may vary but is preferably more than 90D , more preferably in the range of 1 10D - 1 60D , wherein a smooth and aerodynamic transition from the non-raised section of the outer shell and the raised protective section 3a is formed.
  • the smoothness of the helmet is increasing the safety for the user of the helmet in that the risk of hooking into e.g. poles or other objects in for instance a crash situation can be reduced.
  • the curvature of the surface portion 3b of the protective section 3a follows the curvature of the helmet.
  • a corresponding angle to the angle between the surface portion 3b and the edge portion 3c can be found between the non-raised portion of the outer shell 2 at a point of transition from a non-raised portion of the shell 2 to the edge portion 3c and the edge portion 3c.
  • an inner space 6 is formed by the protective section 3a being hollow and defined by the surface portion 3b and, when present, the edge portion 3c.
  • a second energy absorbing and chock absorbing protective material 5 is arranged below the protective section 3a, on the inner surface, facing the inner space 6, of the surface portion 3b of the protective device 3a.
  • an adhesive is used to fixedly arrange the second energy absorbing material onto inner surface of the surface portion 3b.
  • the second energy absorbing material 5 is arranged in the inner space 6.
  • the protective second energy absorbing material 5 is arranged directly onto and adjacent the first energy absorbing material 4 by the use of an adhesive, i.e. wherein an adhesive is arranged between the first energy absorbing material and the second energy absorbing material.
  • the protection device 3 is arranged onto the outer shell 2, i.e. whereby the rigid outer shell 2 is arranged between the first energy absorbing material 4 and the second energy absorbing material 5.
  • a separate protection device 3 may be arranged onto the outer shell 2 of the helmet 1.
  • the separate protection device 3 may have a shell formed by the same material as the outer shell 2, and forms a separate inner space 6 which may be filled with the second energy absorbing material 5.
  • the second energy absorbing material 5 comprises a viscoelastic flexible polyurethane foam also known by the registered trademark VPD® by the applicant.
  • the protective material 5 may comprise any type of polyurethane foam having elastic and energy absorbing capabilities. Such material is commonly referred to as a multi- impact material.
  • the second energy absorbing material 5 may comprise any kind of polymeric foam.
  • the second energy absorbing material may be a shock absorbing pad.
  • the second energy absorbing material may comprise honeycomb material.
  • the protective section 3a, and at least the surface portion 3b may be formed by a low friction material having a lower friction coefficient than the outer shell 2 against a given countersurface/material, to reduce the friction between e.g. the poles and the helmet during impact and, subsequently, the sliding of the pole against the helmet as the skier passes the pole/gate.
  • the protective section 3a may be covered by a thin layer of low friction material having a lower friction coefficient than the outer shell 2 against a given countersurface/material.
  • a helmet comprising a rigid outer shell 2, and an inner portion 4 comprising an energy absorbing material 4, wherein the rigid outer shell 2 comprises a low friction material.
  • the helmet 1 may be provided comprising a rigid outer shell 2, and an inner portion 4 comprising an energy absorbing material 4, wherein the entire shell 2 is covered by a material having a low friction coefficient.
  • the rigid outer shell 2 may also be formed by a low friction material.
  • the low friction material has a friction coefficient which is lower than that of polycarbonate or ABS against a given and same countersurface/material.
  • the friction coefficient ⁇ of the low friction material against itself i.e. wherein the
  • countersurface/material is formed by the low friction material is below 0, 6, more preferably in the range of 0,1 ⁇ 0,4.
  • the protection device 3 is arranged on the helmet in an area where the most frequent engagement or hitting of the poles against the helmet has been found to occur from a plurality of studies.
  • Fig. 3 shows the helmet 1 from the side, i.e. a first side, in a normal use position by a user, wherein the normal direction of the crown of the user's head is essentially pointing in a vertical direction.
  • the helmet 1 is symmetrically designed and has a similar and corresponding second side as the side shown in Fig. 3, although not shown.
  • a center plane (not shown ) with a surface in the vertical plane and having a normal direction extending in a forward direction, divides the helmet in two halves, half way between a rearmost portion furthest to the right in Fig. 3 and a foremost portion of the helmet furthest to the left in Fig. 3 in the normal use position of Fig. 3.
  • the center plane comprises the vertical axis (not shown ) extending in a vertical direction.
  • the portions left of the center plane is defined as the front portion of the helmet 1 and the portions right of the helmet 1 is defined as the rear portion of the helmet 1 in Fig. 3.
  • the protection device is arranged on the front portion of the helmet.
  • the protection device 3 extends along the side of the helmet towards and past the center plane to also be arranged on the back portion of the helmet 1 and thereby essentially forming a U-shape.
  • one end i.e. the bottom of the U of the protection device 3 is arranged essentially at the foremost portion of the helmet or at least within the range of 1 mm to 2 cm from the foremost portion of the helmet and extends towards the vertical axis and such that the protection device has a width covering between 40% - 70% of the length from the first end to the vertical axis.
  • the width of the protection device slightly increases as the protection device 3 extends along the sides of the helmet.
  • the protection device 3 extends passed the center plane towards the rearmost portion of the helmet, so that the protection device covers 25% -50% of the distance from the center plane to the rearmost portion of the helmet 1.
  • a center of the helmet 1 corresponds to a point on the center plane in the interior of the helmet 1 half-way between the uppermost intersection of the center plane and the helmet 1 and the lowermost intersection of the center plane and the helmet 1 .
  • the protection device 3 may comprise a plurality of protective sections 3a (not shown ) distributed on suitable areas of the surface of the helmet, i.e. areas comprised by the area as previously defined.
  • a protection device for helmet according to the invention has been described. However, the person skilled in the art realizes that this can be varied within the scope of the appended claims without depart ⁇ ing from the inventive idea.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

La présente invention concerne un casque (1) comprenant les éléments suivants : une coque externe rigide (2) ; et au moins une partie interne (4) comportant un premier matériau d'absorption d'énergie. Ledit casque (1) comprend en outre un dispositif de protection (3) comportant une section de protection (3a), ladite section de protection (3a) incluant une partie de surface (3b). Un second matériau d'absorption d'énergie (5) est placé entre le premier matériau d'absorption d'énergie (4) et la partie de surface (3b) de la section de protection (3a).
PCT/SE2012/051300 2012-11-23 2012-11-23 Dispositif de protection pour casque Ceased WO2014081363A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/SE2012/051300 WO2014081363A1 (fr) 2012-11-23 2012-11-23 Dispositif de protection pour casque
EP12888729.6A EP2922433A1 (fr) 2012-11-23 2012-11-23 Dispositif de protection pour casque
US14/442,386 US20150359288A1 (en) 2012-11-23 2012-11-23 Protection device for helmet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2012/051300 WO2014081363A1 (fr) 2012-11-23 2012-11-23 Dispositif de protection pour casque

Publications (1)

Publication Number Publication Date
WO2014081363A1 true WO2014081363A1 (fr) 2014-05-30

Family

ID=50776399

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2012/051300 Ceased WO2014081363A1 (fr) 2012-11-23 2012-11-23 Dispositif de protection pour casque

Country Status (3)

Country Link
US (1) US20150359288A1 (fr)
EP (1) EP2922433A1 (fr)
WO (1) WO2014081363A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3019103A1 (fr) * 2016-03-27 2017-10-05 Catalin TUTUNARU Casque de football americain
US12324473B2 (en) 2016-03-27 2025-06-10 Impact Solutions Protective headgear and methods for making same
WO2018144420A1 (fr) 2017-01-31 2018-08-09 Tutunaru Catalin Casque de football américain
US10010127B1 (en) * 2017-06-29 2018-07-03 Bell Sports, Inc. Protective helmet with multi-density impact liners and method for same
AU2021270289A1 (en) 2020-05-12 2022-12-15 Milwaukee Electric Tool Corporation Hard hat with impact protection material
USD1083308S1 (en) * 2023-07-11 2025-07-15 Poc Sweden Ab Helmet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6272692B1 (en) * 2001-01-04 2001-08-14 Carl Joel Abraham Apparatus for enhancing absorption and dissipation of impact forces for all protective headgear
US6425141B1 (en) * 1998-07-30 2002-07-30 Cerebrix Protective helmet
US20120036619A1 (en) * 2004-09-07 2012-02-16 Poc Sweden Ab Helmet

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168542A (en) * 1978-07-07 1979-09-25 Small Irwin A Helmet for racquet ball and other sports
CA2495016A1 (fr) * 2002-08-08 2004-02-19 Marc S. Schneider Casque de sport a absorption d'energie
US20040117896A1 (en) * 2002-10-04 2004-06-24 Madey Steven M. Load diversion method and apparatus for head protective devices
US9107466B2 (en) * 2009-08-31 2015-08-18 Rawlings Sporting Goods Company, Inc. Batting helmet having localized impact protection
US8756719B2 (en) * 2011-03-17 2014-06-24 Waldemar Veazie Method and apparatus for an adaptive impact absorbing helmet system
US8938817B1 (en) * 2013-03-11 2015-01-27 Apalone, Inc. External helmet cushioning system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6425141B1 (en) * 1998-07-30 2002-07-30 Cerebrix Protective helmet
US6272692B1 (en) * 2001-01-04 2001-08-14 Carl Joel Abraham Apparatus for enhancing absorption and dissipation of impact forces for all protective headgear
US20120036619A1 (en) * 2004-09-07 2012-02-16 Poc Sweden Ab Helmet

Also Published As

Publication number Publication date
EP2922433A1 (fr) 2015-09-30
US20150359288A1 (en) 2015-12-17

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