EP1016352A1 - Casque muni d'une calotte intérieure à densité multiple - Google Patents

Casque muni d'une calotte intérieure à densité multiple Download PDF

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Publication number
EP1016352A1
EP1016352A1 EP98830815A EP98830815A EP1016352A1 EP 1016352 A1 EP1016352 A1 EP 1016352A1 EP 98830815 A EP98830815 A EP 98830815A EP 98830815 A EP98830815 A EP 98830815A EP 1016352 A1 EP1016352 A1 EP 1016352A1
Authority
EP
European Patent Office
Prior art keywords
helmet
cap
layer
inner layer
helmet according
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Withdrawn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
EP98830815A
Other languages
German (de)
English (en)
Inventor
Maurizio Casale
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.)
Camau System Di Casale and C SNC
Original Assignee
Camau System Di Casale and C SNC
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 Camau System Di Casale and C SNC filed Critical Camau System Di Casale and C SNC
Priority to EP98830815A priority Critical patent/EP1016352A1/fr
Publication of EP1016352A1 publication Critical patent/EP1016352A1/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the present invention refers to a protective helmet.
  • the invention refers to an helmet of the type comprising a substantially rigid outer shell and an inner cap made of a material suitable for absorbing eventual shocks.
  • the helmets are generally realised coupling to an outer shell made of plastic material, an internal padding made of a shock-absorbing material, subsequently covered by a tissue or other material for a better comfort.
  • the outer shell can be molded using a coloured plastic material and afterwards decorated at will by means of paint and/or plastic adhesive sheets having various shapes and colours, according to uses.
  • This type of helmets provided with aerating holes is used particularly by those who practice cycling, skate-boarding, roller-skating, etc.
  • the outer shell is completely closed, in order to guarantee an higher robustness and rigidity and, consequently, better protection.
  • the inner cap molded in a single element, is normally realised in foamed plastic material, for example polystyrene foam. That material has in fact suitable characteristics of lightness, shock resistance, shock absorbing capacity, and low cost.
  • the high rigidity of the inner cap can reduce the internal comfort of the helmet.
  • a first object of the present invention it is therefore to provide a helmet having a particularly light and comfortable inner cap but having high safety characteristics.
  • Another object of the present invention it is to provide a particularly light helmet easy and cost effective to manufacture.
  • the helmet's inner cap comprises two superimposed layers having different densities, a low density inner layer in contact with user's head, and an outer layer having higher density.
  • the helmet according to the invention has better comfort characteristics in respect to prior art but allows, thanks to the high density outer shell, to maintain high safety characteristics.
  • the inner cap comprises two separated elements, or layers, shown respectively in Figure 1 and in Figure 2, made of foamed plastic material, having different densities and easily matchable by gluing.
  • Figure 1 shows laterally the inner layer 2 of the cap, comprising a portion 2 substantially hemispherical, which defines an inner volume suitable for containing the user's head, and a perimetrical edge 4.
  • the perimetrical edge 4, which is larger than the hemispherical portion 6, provides a perimetrical supporting surface 8 for the outer layer 10 of the cap, shown in Figure 2.
  • the inner layer 2 in contact with the user's head, is made of low density polystyrene foam, for example 70 g/l, a light material, relatively soft and suitable for easily absorbing an eventual shock.
  • the outer layer 10, shown in Figure 2 is made of a single piece of high density polystyrene foam, for example a density double compared with the density of the inner layer, in order to confer rigidity and robustness to the helmet.
  • the outer layer 10 defines internally an hollow volume, having a shape complementary to the external surface of the portion 6 of the inner layer 2, so that it can be perfectly superimposed and it presents a very large gluing surface.
  • the inner layer can be made of three or more superimposed layers, having different densities, glued together in order to obtain a single element.
  • the cap is not provided with aerating through holes and both layers, made of a single piece, can be manufactured using a mold for plastic material simple and cheap.
  • a decorative outer shell preferably made of transparent or coloured polycarbonate.
  • the decorative shell can be painted at will, according to models, uses and fashion, and can be provided with decorative adhesive sheets.
  • the function of the outer shell is mainly decorative, however, as it is strongly glued to the cap, it reinforces the structure and the rigidity of the helmet.
  • the outer shell could be co-molded together with the outer layer 10 of the cap, using well known co-molding techniques for plastic materials, obtaining a more compact and robust structure and avoiding a gluing phase.
  • the cap consists of two separate elements, or layers 14 and 24, shown in top views, respectively in Figure 3 and in Figure 4.
  • the layers 14 and 24 are made of foamed plastic material, have different densities and are provided with aerating through holes.
  • the inner layer 14 comprises perimetrically a supporting edge 22 for the outer layer 24 of the cap, provided with some dowels or pins 26 suitable for coupling with corresponding holes or grooves made in the lower edge of the outer layer 24.
  • the outer layer 24, shown in Figure 4 overlapped to the inner layer 14, comprises three separate portions 24a, 24b and 24c, glued together to form a single cap.
  • Each portion is made of high density polystyrene foam, for example having a density double than the density of the inner layer 14, in order to guarantee rigidity and robustness to the helmet.
  • the three external portions 24a, 24b and 24c can be made of materials having different densities, for example could be necessary, in order to make more robust a particular area of the helmet, to realise one portion with a density particularly high, leaving unaltered the remaining portions.
  • the three portions 24a, 24b and 24c of the external layer form internally a hollow volume having a shape complementary to the external surface of the inner layer 2, in order to allow a perfect superimposition.
  • the rigid and robust outer layer 24 is thus glued onto the inner layer 14, which is light and easily compressible in case of impact, obtaining a light cap, very robust, particularly comfortable and safe in case of impacts.
  • each portion of the outer layer 24a, 24b, 24c is provided with a plurality of through openings 16 in correspondence with the through openings in the inner layer 14.
  • each portion can be easily taken out from the mold along a single direction, a direction coinciding with the axis of the through openings 16.
  • a coloured shell made of polycarbonate, painted or decorated with adhesive sheets.
  • the decorative shell firmly glued onto the cap, improves also the structural robustness of the helmet and its rigidity.
  • the decorative shell subdivided in suitable portions, can be co-molded with the single portions of the outer layer 24, using well known comolding technics for plastic materials.
  • FIG 5 it is shown, in a sectional view, a particular of an helmet according to the present invention, for example an helmet incorporating the double layers cap shown in Figures 1 and 2, in which are visible the inner layer 2 made of low density foam polystyrene, the outer layer 10 made of high density foam polystyrene and the decorative shell 30.
  • the two superimposed layers having different densities which form the inner cap of the helmet according to the invention confer better comfort characteristics and allow, thanks to the high density outer layer, to reach high safety levels.
  • the helmet according to the invention is lighter than an helmet provided with a single density cap and has equivalent technical and esthetical characteristics.
EP98830815A 1998-12-31 1998-12-31 Casque muni d'une calotte intérieure à densité multiple Withdrawn EP1016352A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98830815A EP1016352A1 (fr) 1998-12-31 1998-12-31 Casque muni d'une calotte intérieure à densité multiple

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98830815A EP1016352A1 (fr) 1998-12-31 1998-12-31 Casque muni d'une calotte intérieure à densité multiple

Publications (1)

Publication Number Publication Date
EP1016352A1 true EP1016352A1 (fr) 2000-07-05

Family

ID=8236957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98830815A Withdrawn EP1016352A1 (fr) 1998-12-31 1998-12-31 Casque muni d'une calotte intérieure à densité multiple

Country Status (1)

Country Link
EP (1) EP1016352A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1388300A2 (fr) * 2002-08-09 2004-02-11 Shoei Co., Ltd. Garniture intérieure pour casques de protection et casques de protection munis d'une telle garniture
DE102007056616A1 (de) * 2007-11-23 2009-06-04 Uvex Sports Gmbh & Co. Kg Schutzhelm, insbesondere Motorradhelm
EP2293696A1 (fr) * 2008-07-02 2011-03-16 Edward Morgan Donald Chemisage compressible pour protection contre les impacts
US9107466B2 (en) 2009-08-31 2015-08-18 Rawlings Sporting Goods Company, Inc. Batting helmet having localized impact protection
WO2016116872A1 (fr) * 2015-01-21 2016-07-28 Dainese S.P.A. Casque et procédé de fabrication d'un tel casque
CN106102497A (zh) * 2014-03-07 2016-11-09 贝尔运动股份有限公司 带有护罩安装件的多主体头盔构造
WO2018140787A1 (fr) 2017-01-26 2018-08-02 Bell Sports, Inc. Casque comprenant une coque segmentée
US10757995B2 (en) 2014-03-07 2020-09-01 Bell Sports, Inc. Multi-body helmet construction with shield mounting
EP3977884A4 (fr) * 2019-05-30 2023-07-26 Yun Ho Kim Casque de sécurité multicouche amélioré

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006496A (en) * 1975-08-13 1977-02-08 Land Tool Company Safety helmet
DE2941019A1 (de) * 1979-10-10 1981-04-23 Uvex Winter Optik GmbH, 8510 Fürth Schutzhelm mit daempfend wirkender auskleidung
GB2160148A (en) * 1984-06-15 1985-12-18 Devi Spa Machine for the moulding of layered articles of plasstic material
DE3607583A1 (de) * 1986-03-07 1987-09-17 Ralph Heim Schutzhelm
US5309576A (en) * 1991-06-19 1994-05-10 Bell Helmets Inc. Multiple density helmet body compositions to strengthen helmet
JPH07109609A (ja) * 1993-10-08 1995-04-25 Shoei Kako Kk フルフェイス型ヘルメットの帽体
US5745924A (en) * 1993-09-17 1998-05-05 Specialized Bicycle Components, Inc. Bicycle helmet
WO1998046095A2 (fr) * 1997-04-11 1998-10-22 Bell Sports, Inc. Casque de securite en deux parties, a partie interne et a coque externe ventilees

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006496A (en) * 1975-08-13 1977-02-08 Land Tool Company Safety helmet
DE2941019A1 (de) * 1979-10-10 1981-04-23 Uvex Winter Optik GmbH, 8510 Fürth Schutzhelm mit daempfend wirkender auskleidung
GB2160148A (en) * 1984-06-15 1985-12-18 Devi Spa Machine for the moulding of layered articles of plasstic material
DE3607583A1 (de) * 1986-03-07 1987-09-17 Ralph Heim Schutzhelm
US5309576A (en) * 1991-06-19 1994-05-10 Bell Helmets Inc. Multiple density helmet body compositions to strengthen helmet
US5745924A (en) * 1993-09-17 1998-05-05 Specialized Bicycle Components, Inc. Bicycle helmet
JPH07109609A (ja) * 1993-10-08 1995-04-25 Shoei Kako Kk フルフェイス型ヘルメットの帽体
WO1998046095A2 (fr) * 1997-04-11 1998-10-22 Bell Sports, Inc. Casque de securite en deux parties, a partie interne et a coque externe ventilees

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 095, no. 007 31 August 1995 (1995-08-31) *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1388300A2 (fr) * 2002-08-09 2004-02-11 Shoei Co., Ltd. Garniture intérieure pour casques de protection et casques de protection munis d'une telle garniture
EP1388300A3 (fr) * 2002-08-09 2005-07-06 Shoei Co., Ltd. Garniture intérieure pour casques de protection et casques de protection munis d'une telle garniture
DE102007056616A1 (de) * 2007-11-23 2009-06-04 Uvex Sports Gmbh & Co. Kg Schutzhelm, insbesondere Motorradhelm
EP2293696A1 (fr) * 2008-07-02 2011-03-16 Edward Morgan Donald Chemisage compressible pour protection contre les impacts
EP2293696A4 (fr) * 2008-07-02 2013-07-17 Edward Morgan Donald Chemisage compressible pour protection contre les impacts
US9107466B2 (en) 2009-08-31 2015-08-18 Rawlings Sporting Goods Company, Inc. Batting helmet having localized impact protection
US9808042B2 (en) 2009-08-31 2017-11-07 Rawlings Sporting Goods Company, Inc. Batting helmet having localized impact protection
EP3096637A4 (fr) * 2014-03-07 2017-09-20 Bell Sports Inc. Constructionde casque multicorps et procédé de fixation de sangle
CN106102497A (zh) * 2014-03-07 2016-11-09 贝尔运动股份有限公司 带有护罩安装件的多主体头盔构造
EP3099193A4 (fr) * 2014-03-07 2017-09-27 Bell Sports Inc. Construction de casque multi-corps ayant un élément de montage d'écran de protection
US10016007B2 (en) 2014-03-07 2018-07-10 Bell Sports, Inc. Multi-body helmet construction and strap attachment method
US10757995B2 (en) 2014-03-07 2020-09-01 Bell Sports, Inc. Multi-body helmet construction with shield mounting
US10881161B2 (en) 2014-03-07 2021-01-05 Bell Sports, Inc. Multi-body helmet construction and strap attachment method
WO2016116872A1 (fr) * 2015-01-21 2016-07-28 Dainese S.P.A. Casque et procédé de fabrication d'un tel casque
WO2018140787A1 (fr) 2017-01-26 2018-08-02 Bell Sports, Inc. Casque comprenant une coque segmentée
CN110381763A (zh) * 2017-01-26 2019-10-25 贝尔运动股份有限公司 具有分段式外壳的头盔
EP3558045A4 (fr) * 2017-01-26 2021-01-06 Bell Sports, Inc. Casque comprenant une coque segmentée
US11839257B2 (en) 2017-01-26 2023-12-12 Bell Sports, Inc. Helmet comprising a segmented shell
EP3977884A4 (fr) * 2019-05-30 2023-07-26 Yun Ho Kim Casque de sécurité multicouche amélioré

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