WO1990005464A1 - Casque protecteur - Google Patents

Casque protecteur Download PDF

Info

Publication number
WO1990005464A1
WO1990005464A1 PCT/AU1989/000490 AU8900490W WO9005464A1 WO 1990005464 A1 WO1990005464 A1 WO 1990005464A1 AU 8900490 W AU8900490 W AU 8900490W WO 9005464 A1 WO9005464 A1 WO 9005464A1
Authority
WO
WIPO (PCT)
Prior art keywords
helmet
cheek
chin
bar
bars
Prior art date
Application number
PCT/AU1989/000490
Other languages
English (en)
Inventor
Rodney Dean Cooter
John David David
Original Assignee
Rodney Dean Cooter
John David David
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 Rodney Dean Cooter, John David David filed Critical Rodney Dean Cooter
Publication of WO1990005464A1 publication Critical patent/WO1990005464A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/32—Collapsible helmets; Helmets made of separable parts ; Helmets with movable parts, e.g. adjustable
    • A42B3/326—Helmets with movable or separable chin or jaw guard
    • 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

Definitions

  • This invention relates to protective helmets of a type used by motor cycle riders and racing car drivers.
  • a full face helmet of conventional current design normally includes a chin bar (sometimes referred to as a face bar) which is a projecting part extending around the chin of a user and having as its purpose protection against abrasion of the lower face.
  • a chin bar sometimes referred to as a face bar
  • an impact on the chin bar can be transmitted directly as a lifting force through the chin strap on to the jaw of the user and through this through the mandibular condyles in such a way that there is a force transmitted through to the skull base which in turn causes a fracture along the floor of the middle cranial fossa on which the brain rests.
  • a proposed helmet including a chin bar and chin strap characterized in that there are means to effect substantial energy absorption upon deformation of parts of the helmet in the event of a frontal force being effected against the chin bar.
  • the helmet includes means to interengage with respect to the cheek bones of a user whereby to impede rearward movement of the helmet relative to the head of a wearer in the event of a rearward pressure on the helmet through a chin bar.
  • such an arrangement includes two cheek bars one of which extends from each respective side of the helmet and each of which is located so as to be normally in a sufficiently close relationship with the cheek bone of a user so that in the event of significant forces occurring on the helmet in a rearward direction, these will inevitably intersect against the cheek and significantly retard such further movement.
  • the cause of the fatalities hitherto has been a combination of the arrangement of the outer helmet which includes a rigidly connected chin bar, and an interconnected strap which extends below the chin which of course transmits the substantially upward force in the event of an accident trauma.
  • the cheek bars are arranged firstly so that they will retard the relative motion of a helmet from a rearward upward direction.
  • cheek bars that can be varied in position and can be interlocked in selected positions which are appropriately comfortable for a user but adequately positioned in the event of an accident for the purposes stated.
  • an inner helmet means incorporating respective cheek bars adapted to engage against respective cheek bones of a user and to be integrally secured one with respect to the other by an inner helmet part, an outer helmet including a forwardly extending chin bar, and an elastomeric connector between said inner helmet means and said outer helmet means.
  • such inner helmet means and outer helmet define a space there between which is filled with an appropriate shock absorbing material.
  • energy absorption means within the structure of the face bar and further, the chin strap is anchored in such a way that it will cause substantial inward defamation of the helmet at its anchor point, and such therefore that, energy absorption occurs by such means.
  • FIGURE 1 is a side elevation in which the shape of the helmet according to a standard design is shown in outline with the details of the human head is also shown in continuous outline so that the forces effective during the impact on the chin bar can be seen,
  • FIGURE 2 is the same view as in Figure 1 with, however, the further stage being reached in which the fractures expected are shown,
  • FIGURE 3 is a cross sectional view looking from above of a helmet according to the first embodiment located around in schematic layout, the skull of the user,
  • FIGURE 4 is a side elevation in part cross section and partly schematic showing the arrangement of the same helmet as in FIGURE 3 located on the head of the user,
  • FIGURE 5 shows the arrangement for a second embodiment showing in schematic detail the use of chin bars attached to a helmet, and showing the a position at which the cheek bars are in their normal position.
  • FIGURE 6 is the same cross sectional view as in FIGURE 5 showing however the cheek bars in a diverted position.
  • FIGURE 7 is a side view of the helmet of the second embodiment.
  • a helmet 1 which includes an inner helmet means 2 which is comprised of relatively rigid plastics materials in relatively thin sheet form but adapted to conform to the external shape of the skull of the user and in particular such that there are two cheek bars at 3 and 4 which are adapted to fit around and both engage against and slightly underneath the cheeks of the person shown at 5.
  • This inner helmet means 2 is secured and maintained with respect to the head of the person 5 by a chin strap 6.
  • An outer helmet 7 is connected to the inner helmet means 2 by two blocks 8 and 9 which are comprised of an elastomeric material such as polyurethane plastics material or such that in the event of significant relative forces occurring between the outer helmet means 7 and the inner helmet means 2, then these elastomeric blocks 8 and 9 will be caused to deform and provide significant energy losses as well as relative loss of impact forces between the two.
  • an elastomeric material such as polyurethane plastics material
  • the chin bar 11 it is rigidly connected to the outer helmet means 7, but nonetheless there are significant energy absorbing means between the outer helmet and the inner helmet means and the cheek bars retard further rearward relative movement action.
  • this includes cheek bars 12 and 13 which are comprised integrally with the external shell of a crash helmet of traditional dimensions and type.
  • cheek bars 12 and 13 which project across the respective cheeks 14 and 15 of a user and there is provided a cushioning material of a resilient urethane foam at 16 and 17.
  • the energy losses are caused by deflection of the cheek bars to a position as shown in FIGURE 6 in dotted outline at 18 and 19 which is of course given simply by way of example.
  • chin strap is changed in position to become a neck strap and has its anchor point changed so that it is either at a rear of the helmet shape at 20 or in preference, it encircles some of the energy absorbing materials at 21 so that there is firstly a differing anchor point and more particularly, more energy absorption being caused by a compression of this material by a tightening of the chin strap or neck strap as the case might be.
  • the number of turns and shapes of the strap can be selected as appropriate.
  • a helmet 31 which as is traditionally the case is made of a material to resist substantial abrasion but which at the same time is manufactured to be substantially rigid and to provide a substantially rigid interconnection through to the chin straps 33.
  • the chin strap 33 is conventionally made of a leather or substantially non extensible but pliable material by means which allow for pivotable freedom about a substantially horizontal axis at 34 but which otherwise will now allow any other freedom of movement.
  • the mandibular condyles 36 are therefore trapped into forcing part of the skull base which in turn causes a fracture along the floor of the middle cranial fossa with the result that the brain 38 will be lifted fracturing the spinal column at 39.

Abstract

Le casque extérieur décrit (1) comprend un casque intérieur (2) avec des barres de joue (3, 4) qui s'étendent autour des joues de l'utilisateur avec lesquelles elles sont en contact. Des organes d'absorption d'énergie élastomères (8, 9) joignent le casque intérieur (2) et le casque extérieur (1).
PCT/AU1989/000490 1988-11-15 1989-11-15 Casque protecteur WO1990005464A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPJ145488 1988-11-15
AUPJ1454 1988-11-15
AUPJ5180 1989-07-10
AUPJ518089 1989-07-10

Publications (1)

Publication Number Publication Date
WO1990005464A1 true WO1990005464A1 (fr) 1990-05-31

Family

ID=25643582

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1989/000490 WO1990005464A1 (fr) 1988-11-15 1989-11-15 Casque protecteur

Country Status (1)

Country Link
WO (1) WO1990005464A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020133A1 (fr) * 1997-10-17 1999-04-29 Markus Krauter Casque de protection comportant une coque indeformable
EP0966893A1 (fr) * 1998-06-23 1999-12-29 Arai Helmet Limited Casque du type dit intégral
EP0976336A1 (fr) * 1998-07-31 2000-02-02 Arai Helmet Limited Casque
WO2009133437A1 (fr) * 2008-04-29 2009-11-05 Givi S.R.L. Casque à protection intégrée dans la visière
ITRM20080450A1 (it) * 2008-08-08 2010-02-09 Dainese Spa Casco perfezionato.
US20150074875A1 (en) * 2011-12-19 2015-03-19 Oliver Schimpf Protective helmet; method for reducing or preventing a head injury
EP3468403A4 (fr) * 2016-06-14 2020-01-15 Darryl Rodney Flack Casque avec zone d'écrasement de menton et ventilation intégrée
IT201900006796A1 (it) * 2019-05-14 2020-11-14 S Italia S R L Casco di protezione ad elevata sicurezza di impiego.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU3095177A (en) * 1976-11-29 1979-05-31 J. Littler Brian Protective collar suitable for use witha crash helmet
AU4998485A (en) * 1984-11-22 1986-05-29 Pier Luigi Nava Padded sports helmet
AU4972985A (en) * 1984-11-26 1986-06-05 Santini, J-J.G.R. Protective helmet for sport or work
AU5308686A (en) * 1984-12-21 1986-07-22 Sonda S.R.L. Protective buffer padding element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU3095177A (en) * 1976-11-29 1979-05-31 J. Littler Brian Protective collar suitable for use witha crash helmet
AU4998485A (en) * 1984-11-22 1986-05-29 Pier Luigi Nava Padded sports helmet
AU4972985A (en) * 1984-11-26 1986-06-05 Santini, J-J.G.R. Protective helmet for sport or work
AU5308686A (en) * 1984-12-21 1986-07-22 Sonda S.R.L. Protective buffer padding element

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020133A1 (fr) * 1997-10-17 1999-04-29 Markus Krauter Casque de protection comportant une coque indeformable
EP0966893A1 (fr) * 1998-06-23 1999-12-29 Arai Helmet Limited Casque du type dit intégral
EP0976336A1 (fr) * 1998-07-31 2000-02-02 Arai Helmet Limited Casque
US6138284A (en) * 1998-07-31 2000-10-31 Arai; Michio Helmet
WO2009133437A1 (fr) * 2008-04-29 2009-11-05 Givi S.R.L. Casque à protection intégrée dans la visière
ITRM20080450A1 (it) * 2008-08-08 2010-02-09 Dainese Spa Casco perfezionato.
WO2010016032A3 (fr) * 2008-08-08 2010-03-25 Dainese S.P.A. Casque amélioré
US8667618B2 (en) 2008-08-08 2014-03-11 Dainese S.P.A. Helmet
US20150074875A1 (en) * 2011-12-19 2015-03-19 Oliver Schimpf Protective helmet; method for reducing or preventing a head injury
EP3468403A4 (fr) * 2016-06-14 2020-01-15 Darryl Rodney Flack Casque avec zone d'écrasement de menton et ventilation intégrée
US11172720B2 (en) 2016-06-14 2021-11-16 Darryl Rodney FLACK Helmet with chin crush zone and integrated ventilation
IT201900006796A1 (it) * 2019-05-14 2020-11-14 S Italia S R L Casco di protezione ad elevata sicurezza di impiego.

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