EP2316291B1 - Schutzhelmschale aus Verbundmaterial - Google Patents

Schutzhelmschale aus Verbundmaterial Download PDF

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Publication number
EP2316291B1
EP2316291B1 EP10189124A EP10189124A EP2316291B1 EP 2316291 B1 EP2316291 B1 EP 2316291B1 EP 10189124 A EP10189124 A EP 10189124A EP 10189124 A EP10189124 A EP 10189124A EP 2316291 B1 EP2316291 B1 EP 2316291B1
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EP
European Patent Office
Prior art keywords
resin
base
helmet shell
parts
impregnated
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.)
Active
Application number
EP10189124A
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English (en)
French (fr)
Other versions
EP2316291A1 (de
Inventor
Jean-Noël Perbet
Christophe Coupeaud
Laurent Laluque
Jean-Noël Baudou
Philippe Viot
Sébastien Denneulin
Virginie Rejsek
Matthieu Gervais
Alain Soum
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.)
Thales SA
Original Assignee
Thales SA
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Publication date
Application filed by Thales SA filed Critical Thales SA
Publication of EP2316291A1 publication Critical patent/EP2316291A1/de
Application granted granted Critical
Publication of EP2316291B1 publication Critical patent/EP2316291B1/de
Active legal-status Critical Current
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Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42C—MANUFACTURING OR TRIMMING HEAD COVERINGS, e.g. HATS
    • A42C2/00—Manufacturing helmets by processes not otherwise provided for
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1362—Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]

Definitions

  • EP 1 300 089 describes a method for decorating and reinforcing a high-strength protective helmet and a helmet obtained thereby.
  • the structure according to the invention makes it possible either to improve the impact and penetration resistance for a given thickness of composite, or to reduce the composite thickness for a given impact and penetration resistance.
  • the technical solution is to add particular polymers to the resin of the composite in order to increase impact and penetration resistance at equivalent weight. This addition is very simple industrially, since particles are dispersed in the base of a resin, then the resin is prepared, drapes and coats the composite according to the same process as a conventional preparation. In order to simplify the realization of the composite, the use of this solution is limited to the most sensitive areas of the head. It has been shown that the regions of the top of the head and ears support lower energies than the rest of the skull before injury. We will refer to the study of J. McEntire, in Helmet Mounted Displays: Design Issues for Rotary-Wing Aircraft, edited by CE Rash for all the details on this subject.
  • the invention firstly relates to a helmet shell of composite material comprising at least one "armor” fabric impregnated with a resin matrix, characterized in that certain parts of the "armor” are impregnated with a resin matrix comprising an adjuvant capable of reinforcing the mechanical strength of the shell, said parts corresponding to the most fragile zones of a human head, the rest of the "armor” being impregnated with a resin matrix not containing said adjuvant.
  • the invention also has for its second object a pilot's helmet comprising at least one helmet shell according to one of the preceding characteristics.
  • a helmet shell of composite material according to the invention comprises at least one "armor" of fabrics, some parts of which are impregnated with a resin matrix comprising an adjuvant capable of reinforcing the mechanical strength of the shell, said portions corresponding to the most fragile areas of a human head.
  • a conventional resin is retained for the other areas of the shell.
  • Such a shell is represented in figure 3 .
  • the Z N parts of the shell C comprising the adjuvant comprises a dotted pattern, the Z parts not comprising the adjuvant are blank in this figure.
  • the head H is shown in dotted lines.
  • An epoxy-type resin is more particularly used and the adjuvant chosen is based on acrylic block copolymers.
  • the polymers added have a so-called "triblock” structure, which once formulated with an epoxy resin makes it possible to obtain a structuring of the matrix at the nanoscale. This structuring makes it possible to significantly modify the mechanical properties of the composite.
  • a composite "armor” consisting of three plies of poly-para-phenylene terephthalamide, better known under the trademark "Kevlar”.
  • Kevlar poly-para-phenylene terephthalamide
  • the reinforced parts being made of the same number of plies, the same reinforcing fabric but with an epoxy matrix loaded with "Nanostrength M22N”.
  • the percentage of "Nanostrength M22N” can be between 5% and 15%. Mechanical impact resistance tests on control plates show that the deformation of the "Nanostrength®" reinforced parts is approximately ten times lower than that of the unreinforced parts.
  • the method of preparation of the polymer-free composite "Nanostrength®" is identical except that no adjuvant is added to the epoxy base. Press parameters such as pressure or time and polymerization such as temperature, pressure or time are the same as those mentioned above for uncharged resin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Helmets And Other Head Coverings (AREA)

Claims (6)

  1. Schutzhelmschale (C) aus einem Verbundmaterial, das wenigstens eine "Armierung" aus Gewebe umfasst, die mit einer Harzmatrix imprägniert ist, dadurch gekennzeichnet, dass bestimmte dedizierte Teile (ZN) der "Armierung" mit einer Harzmatrix imprägniert sind, die einen Zusatzstoff zum Verstärken der mechanischen Festigkeit der Schale enthält, wobei die Teile den empfindlichsten Regionen eines menschlichen Kopfes entsprechen, wobei der Rest (Z) der "Armierung" mit einer Harzmatrix imprägniert ist, die den Zusatzstoff nicht enthält.
  2. Schutzhelmschale nach Anspruch 1, dadurch gekennzeichnet, dass der Harz ein Harz des Epoxidtyps ist und der Zusatzstoff auf Acryl-Blockcopolymeren basiert.
  3. Schutzhelmschale nach Anspruch 2, dadurch gekennzeichnet, dass die Acryl-Blockcopolymere von der von der Gesellschaft Arkéma vermarkteten Marke "Nanostrength®" sind.
  4. Schutzhelmschale nach Anspruch 1, dadurch gekennzeichnet, dass die den Zusatzstoff enthaltenden Teile der "Armierung" der obere Teil der Schale, der dem Scheitel des Schädels entspricht, und der linke und rechte Seitenteil sind, die den Ohren entsprechen.
  5. Pilotschutzhelm, der wenigstens eine Schutzhelmschale nach einem der vorherigen Ansprüche umfasst.
  6. Verfahren zur Herstellung einer Schutzhelmschale aus einem Verbundmaterial, das wenigstens eine "Armierung" aus Gewebe umfasst, die mit einer Harzmatrix imprägniert ist, wobei das Verfahren die folgenden Schritte beinhaltet:
    • Herstellen einer ersten Basis, die nur Epoxidharz beinhaltet;
    • Herstellen einer zweiten Basis, die Epoxidharz und einen Zusatzstoff zum Verstärken der mechanischen Festigkeit enthält;
    • Imprägnieren der Gewebe mit der zweiten Basis in den Teilen, die den empfindlichsten Regionen eines menschlichen Kopfes entsprechen;
    • Imprägnieren der Gewebe mit der ersten Basis außerhalb dieser Teile;
    • Polymerisieren der imprägnierten Gewebe.
EP10189124A 2009-11-03 2010-10-27 Schutzhelmschale aus Verbundmaterial Active EP2316291B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0905261A FR2951912B1 (fr) 2009-11-03 2009-11-03 Coque de casque en materiau composite

Publications (2)

Publication Number Publication Date
EP2316291A1 EP2316291A1 (de) 2011-05-04
EP2316291B1 true EP2316291B1 (de) 2012-09-19

Family

ID=42289551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10189124A Active EP2316291B1 (de) 2009-11-03 2010-10-27 Schutzhelmschale aus Verbundmaterial

Country Status (3)

Country Link
US (1) US8671466B2 (de)
EP (1) EP2316291B1 (de)
FR (1) FR2951912B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2988692A1 (fr) * 2012-04-03 2013-10-04 Sebastien Denneulin Pales en materiaux composites pour eolienne ou helicoptere
FR2991909B1 (fr) * 2012-06-19 2014-07-04 Thales Sa Heterostructure en materiau composite
USD869772S1 (en) * 2018-01-05 2019-12-10 Francois GAND Helmet
US20200054090A1 (en) * 2018-08-17 2020-02-20 Minson Enterprises Co., Ltd. Strengthened helmet with buffer portions and manufacturing method thereof

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2351235A (en) * 1942-06-18 1944-06-13 Gen Motors Corp Helmet
US3567568A (en) * 1967-09-29 1971-03-02 Dow Chemical Co Impact resistant sheet and method for the preparation thereof
US3956447A (en) * 1975-06-16 1976-05-11 The United States Of America As Represented By The Secretary Of The Army Method of making deep drawn, laminated articles
US3958276A (en) * 1975-07-09 1976-05-25 Clausen Carol W Helmet
US4023209A (en) * 1975-12-17 1977-05-17 Gentex Corporation Protective helmet assembly with segmental outer shell
US4748064A (en) * 1985-01-14 1988-05-31 Allied Corporation Ballistic-resistant composite article
JP2509285B2 (ja) * 1988-03-18 1996-06-19 富士通株式会社 半導体装置の試験方法
US6003424A (en) * 1990-03-08 1999-12-21 Alliedsignal Inc. Armor systems
US5361420A (en) * 1993-03-30 1994-11-08 C & P Products Protective head gear for wrestlers
US5749096A (en) * 1994-07-01 1998-05-12 Ilixco, Inc. Helmet with high performance head and face protection utilizing complementary materials
ITMI20012071A1 (it) * 2001-10-05 2003-04-05 New Max Srl Metodo per la decorazione e per il rinforzo di un casco di sicurezza ad elevata resistenza e casco prodotto con tale metodo
US6846758B2 (en) * 2002-04-19 2005-01-25 Honeywell International Inc. Ballistic fabric laminates
US7328462B1 (en) * 2004-02-17 2008-02-12 Albert E Straus Protective helmet
US9631898B2 (en) * 2007-02-15 2017-04-25 Honeywell International Inc. Protective helmets
US8782818B2 (en) * 2009-05-14 2014-07-22 Chang-Hsien Ho Safety helmet structure and processing method thereof
US9107466B2 (en) * 2009-08-31 2015-08-18 Rawlings Sporting Goods Company, Inc. Batting helmet having localized impact protection
US20110203024A1 (en) * 2010-02-25 2011-08-25 Morgan Arthur C Rifle Rated Ballistic Helmet

Also Published As

Publication number Publication date
FR2951912A1 (fr) 2011-05-06
US8671466B2 (en) 2014-03-18
US20110265235A1 (en) 2011-11-03
EP2316291A1 (de) 2011-05-04
FR2951912B1 (fr) 2011-12-02

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