EP3284359B1 - Steam-formed double-layer shock-absorption sports helmet - Google Patents

Steam-formed double-layer shock-absorption sports helmet Download PDF

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Publication number
EP3284359B1
EP3284359B1 EP17171530.3A EP17171530A EP3284359B1 EP 3284359 B1 EP3284359 B1 EP 3284359B1 EP 17171530 A EP17171530 A EP 17171530A EP 3284359 B1 EP3284359 B1 EP 3284359B1
Authority
EP
European Patent Office
Prior art keywords
material layer
eps
epp
helmet
layer
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
EP17171530.3A
Other languages
German (de)
French (fr)
Other versions
EP3284359A1 (en
Inventor
Guoding Wang
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.)
Eon Sporting Goods Co Ltd
Original Assignee
Eon Sporting Goods Co Ltd
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 Eon Sporting Goods Co Ltd filed Critical Eon Sporting Goods Co Ltd
Publication of EP3284359A1 publication Critical patent/EP3284359A1/en
Application granted granted Critical
Publication of EP3284359B1 publication Critical patent/EP3284359B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A42B3/066—Impact-absorbing shells, e.g. of crash helmets specially adapted for cycling helmets, e.g. for soft shelled helmets
    • 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
    • A42B3/10—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
    • A42C—MANUFACTURING OR TRIMMING HEAD COVERINGS, e.g. HATS
    • A42C2/00—Manufacturing helmets by processes not otherwise provided for
    • A42C2/002—In-mould forming
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
    • A63B71/10—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the head

Definitions

  • the present invention relates to a sports helmet, and specifically, to a steam-formed double-layer shock-absorption sports helmet, which belongs to the technical field of sports equipment.
  • a safety helmet is a fitting for protecting head of people.
  • vehicle-used helmet or baseball sport helmets and other sports helmets are indispensable tools for people in transportations or sports.
  • Most of helmets are generally in a semicircular shape and each includes a shell and a liner.
  • a shock absorption structure is arranged between the shell and the liner. This structure is required to have certain hardness, anti-hitting performance, certain softness and certain cushioning performance.
  • the existing shock absorption structure employs the following manner: the liner of the structure is made of EPS that is a high-density material. Although the EPS material has a little elasticity, the hardness is high so the shock absorption effect is poor.
  • FR 2 379 262 discloses a helmet with a shock-absorption layer comprising a layer of expanded polyethylene (EPE) and a layer of expanded polystyrene (EPS).
  • EPE expanded polyethylene
  • EPS expanded polystyrene
  • WO 2016/112987 discloses a helmet with a shock-absorbing layer comprising expanded polystyrene (EPS) or expanded polypropylene (EPP).
  • EPS expanded polystyrene
  • EPP expanded polypropylene
  • the present invention aims at solving the technical problems that the helmet cannot have both the anti-hitting capability and the softness and is poor in use comfort by providing a steam-formed double-layer shock-absorption sports helmet.
  • the steam-formed double-layer shock-absorption sports helmet of the present invention includes a helmet body; the helmet body includes a surface hard shell, an EPS material layer and an EPP material layer; the surface hard shell, the EPS material layer and the EPP material layer are successively mounted in a fitting manner; the surface hard shell is wrapped on an outer surface of the EPS material layer; and the EPP material layer is wrapped on an inner surface of the EPS material layer.
  • the EPS material layer is made of an EPS material.
  • the EPP material layer is made of an EPP material.
  • the steam-formed double-layer shock-absorption sports helmet consists of the surface hard shell, the middle EPS material layer and the lower EPP material layer, has good anti-hitting performance, water resistance, heat resistance and thermal insulation properties.
  • the EPP material layer with good shock resistance and energy absorption properties, high deformation recovery rate, and good heat resistance, oil resistance and thermal insulation properties is used.
  • the EPP material layer has light weight, so that the article weight can be greatly reduced.
  • 1 helmet body
  • 2 hard surface shell
  • 3 EPS material layer
  • 4 EPP material layer
  • a steam-formed double-layer shock-absorption sports helmet includes a helmet body 1; the helmet body 1 includes a surface hard shell 2, an EPS material layer 3 and an EPP material layer 4; the surface hard shell 2, the EPS material layer 3 and the EPP material layer 4 are successively mounted in a fitting manner; the surface hard shell 2 is wrapped on an outer surface of the EPS material layer 3; and the EPP material layer 4 is wrapped on an inner surface of the EPS material layer 3.
  • the EPS material layer 3 is made of an EPS material.
  • the EPP material layer 4 is made of an EPP material.
  • the present invention relates to a helmet used for cycling sports and outdoor sports, and in particular relates to an EPP structure for a helmet, which can achieve a shock-absorption and cushioning effect, and is suitable for vehicle-used helmets, baseball sports helmet and other sports helmets.
  • the helmet mainly consists of the surface hard shell 2, the middle EPS material layer 3 and the lower EPP material layer 4; the surface hard shell 2 is mainly used to resist the external hit; the EPS material layer 3 is mainly made of an expandable polystyrene material and has functions of water resistance, heat resistance and heat insulation, thereby effectively improving the wearing comfort; the EPP material layer 4 is mainly made of a polypropylene plastic foam material, has good shock resistance and energy absorption performance, high deformation recovery rate and good heat resistance, oil resistance and thermal insulation properties; and furthermore, the EPP material layer has light weight, so that the article weight can be greatly reduced.
  • the steam-formed double-layer shock-absorption sports helmet consists of the surface hard shell, the middle EPS material layer and the lower EPP material layer, has good anti-hitting performance, water resistance, heat resistance and thermal insulation properties. Moreover, the EPP material layer having the characteristics of good shock resistance and energy absorption properties, high deformation recovery rate, and good heat resistance, oil resistance and thermal insulation properties is used. Furthermore, the EPP material layer has light weight, so that the article weight can be greatly reduced.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a sports helmet, and specifically, to a steam-formed double-layer shock-absorption sports helmet, which belongs to the technical field of sports equipment.
    • BACKGROUND OF THE INVENTION
  • A safety helmet is a fitting for protecting head of people. For example, vehicle-used helmet or baseball sport helmets and other sports helmets are indispensable tools for people in transportations or sports. Most of helmets are generally in a semicircular shape and each includes a shell and a liner. A shock absorption structure is arranged between the shell and the liner. This structure is required to have certain hardness, anti-hitting performance, certain softness and certain cushioning performance. However, the above requirements cannot be realized because a same material has identical density. The existing shock absorption structure employs the following manner: the liner of the structure is made of EPS that is a high-density material. Although the EPS material has a little elasticity, the hardness is high so the shock absorption effect is poor. Since the liner directly contacts the head of people, the helmet is poor in wearing comfort and is uncomfortable to wear because of the high hardness FR 2 379 262 discloses a helmet with a shock-absorption layer comprising a layer of expanded polyethylene (EPE) and a layer of expanded polystyrene (EPS).
  • WO 2016/112987 discloses a helmet with a shock-absorbing layer comprising expanded polystyrene (EPS) or expanded polypropylene (EPP).
    • SUMMARY OF THE INVENTION
  • The present invention aims at solving the technical problems that the helmet cannot have both the anti-hitting capability and the softness and is poor in use comfort by providing a steam-formed double-layer shock-absorption sports helmet.
  • In order to solve the above-mentioned technical problems, the present invention provides a technical solution as follows:
    The steam-formed double-layer shock-absorption sports helmet of the present invention includes a helmet body; the helmet body includes a surface hard shell, an EPS material layer and an EPP material layer; the surface hard shell, the EPS material layer and the EPP material layer are successively mounted in a fitting manner; the surface hard shell is wrapped on an outer surface of the EPS material layer; and the EPP material layer is wrapped on an inner surface of the EPS material layer.
  • As a preferable technical solution of the present invention, the EPS material layer is made of an EPS material.
  • As a preferable technical solution of the present invention, the EPP material layer is made of an EPP material.
  • The present invention has the beneficial effects that: the steam-formed double-layer shock-absorption sports helmet consists of the surface hard shell, the middle EPS material layer and the lower EPP material layer, has good anti-hitting performance, water resistance, heat resistance and thermal insulation properties. Moreover, the EPP material layer with good shock resistance and energy absorption properties, high deformation recovery rate, and good heat resistance, oil resistance and thermal insulation properties is used. Furthermore, the EPP material layer has light weight, so that the article weight can be greatly reduced.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The drawings are used to further understand the present invention and constitute a part of the description. The drawings are used to explain the present invention together with embodiments of the present invention but not to limit the present invention. In the drawings:
    • Fig. 1 is a top structural schematic diagram of the present invention;
    • Fig. 2 is a sectional view at A-Ain Fig. 1; and
    • Fig. 3 is a sectional view at B-B in Fig. 1.
  • In the drawings: 1: helmet body; 2: hard surface shell; 3: EPS material layer; and 4: EPP material layer
    • DETAILED DESCRIPTION OF THE INVENTION
  • Preferred embodiments of the present invention are described below in combination with the drawings. It shall be appreciated that the preferred embodiments described herein are only used to illustrate and explain the present invention rather than limit the present invention.
    • Embodiment 1
  • As shown in Fig. 1 to Fig. 3, a steam-formed double-layer shock-absorption sports helmet includes a helmet body 1; the helmet body 1 includes a surface hard shell 2, an EPS material layer 3 and an EPP material layer 4; the surface hard shell 2, the EPS material layer 3 and the EPP material layer 4 are successively mounted in a fitting manner; the surface hard shell 2 is wrapped on an outer surface of the EPS material layer 3; and the EPP material layer 4 is wrapped on an inner surface of the EPS material layer 3.
  • The EPS material layer 3 is made of an EPS material. The EPP material layer 4 is made of an EPP material.
  • Specifically, the present invention relates to a helmet used for cycling sports and outdoor sports, and in particular relates to an EPP structure for a helmet, which can achieve a shock-absorption and cushioning effect, and is suitable for vehicle-used helmets, baseball sports helmet and other sports helmets. The helmet mainly consists of the surface hard shell 2, the middle EPS material layer 3 and the lower EPP material layer 4; the surface hard shell 2 is mainly used to resist the external hit; the EPS material layer 3 is mainly made of an expandable polystyrene material and has functions of water resistance, heat resistance and heat insulation, thereby effectively improving the wearing comfort; the EPP material layer 4 is mainly made of a polypropylene plastic foam material, has good shock resistance and energy absorption performance, high deformation recovery rate and good heat resistance, oil resistance and thermal insulation properties; and furthermore, the EPP material layer has light weight, so that the article weight can be greatly reduced.
  • The specific production steps are as follows:
    1. 1. Preparing the hard shell of the helmet (molding a PC material in a die casting manner), and forming an independent hard shell component;
    2. 2. Preparing the EPP material layer (molding the EPP material in a die casting manner), baking the EPP, spraying a treating agent onto the surface layer, and finally brushing a layer of glue (so that the EPP material layer can be well bonded together with the EPS at the next step), thereby forming an independent shock-absorption layer component;
    3. 3. Placing the hard shell component and the EPP material layer component into a helmet production mold and separately being fixed at corresponding positions (the hard shell) of the mold, and forming a gap (convenient for pouring the EPS raw material) between the hard shell component and the EPP material layer component;
    4. 4. Pouring the EPS raw material into the mold (at the gap between the hard shell component and the EPP material layer component); the hard shell component, the EPP material layer component and the EPS raw material are all in the mold at the moment; then injecting high-temperature steam into the entire mold; fusing and molding the EPS raw material under the effect of high temperature and high pressure to form the EPS material layer; bonding the EPS and the EPP together at the same time; and bonding the EPS with the hard shell component.
  • After the above process is completed, the steam is released, the pressure and the temperature are lowered, the mold is stripped, and finally the sports helmet is well produced.
  • The steam-formed double-layer shock-absorption sports helmet consists of the surface hard shell, the middle EPS material layer and the lower EPP material layer, has good anti-hitting performance, water resistance, heat resistance and thermal insulation properties. Moreover, the EPP material layer having the characteristics of good shock resistance and energy absorption properties, high deformation recovery rate, and good heat resistance, oil resistance and thermal insulation properties is used. Furthermore, the EPP material layer has light weight, so that the article weight can be greatly reduced.
  • Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art still can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some of the technical features, but the scope of protection is defined by the claims.

Claims (3)

  1. A steam-formed double-layer shock-absorption sports helmet, comprising a helmet body (1), wherein the helmet body (1) comprises a hard surface shell (2), an EPS material layer (3) and an EPP material layer (4); the hard surface shell (2), the EPS material layer (3) and the EPP material layer (4) are successively mounted together in a fitting manner; the hard surface shell (2) is wrapped on an outer surface of the EPS material layer (3), and the EPP material layer (4) is wrapped on an inner surface of the EPS material layer (3).
  2. The steam-formed double-layer shock-absorption sports helmet of claim 1, wherein the EPS material layer (3) is made of an EPS material.
  3. The steam-formed double-layer shock-absorption sports helmet of claim 1, wherein the EPP material layer (4) is made of an EPP material.
EP17171530.3A 2016-08-17 2017-05-17 Steam-formed double-layer shock-absorption sports helmet Active EP3284359B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620894163.3U CN205963032U (en) 2016-08-17 2016-08-17 Fashioned double -deck shock attenuation campaign helmet of steam

Publications (2)

Publication Number Publication Date
EP3284359A1 EP3284359A1 (en) 2018-02-21
EP3284359B1 true EP3284359B1 (en) 2018-12-26

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Application Number Title Priority Date Filing Date
EP17171530.3A Active EP3284359B1 (en) 2016-08-17 2017-05-17 Steam-formed double-layer shock-absorption sports helmet

Country Status (3)

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US (1) US20180049502A1 (en)
EP (1) EP3284359B1 (en)
CN (1) CN205963032U (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190090574A1 (en) * 2017-09-22 2019-03-28 Bell Sports, Inc. Interlocking co-molded helmet energy management liner
CN108294395A (en) * 2018-03-22 2018-07-20 东莞市益安运动用品有限公司 A kind of single layer damping sports helmet of steam molding
CN109757816A (en) * 2019-01-30 2019-05-17 厦门新凯复材科技有限公司 A kind of safety cap manufacture craft

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
FR2379262A1 (en) * 1977-02-07 1978-09-01 Finquel Michel Protective helmets for motorcyclists etc. - with a flexible layer between outer rigid and inner semi-rigid layers to suppress light shock transmission
US6453476B1 (en) * 2000-09-27 2002-09-24 Team Wendy, Llc Protective helmet
RU2404061C2 (en) * 2004-07-14 2010-11-20 Армфоум Инк. Laminar panel and method of its production
US20100000009A1 (en) * 2008-07-02 2010-01-07 Morgan Donald E Compressible Liner for Impact Protection
WO2014019537A1 (en) * 2012-08-02 2014-02-06 Strategic Sports Limited Helmet with in-moulded memory foam member and process therefor
JP2016539253A (en) * 2013-12-06 2016-12-15 ベル スポーツ， インコーポレイテッド Flexible multilayer helmet and method for manufacturing the same
WO2016112987A1 (en) * 2015-01-15 2016-07-21 Cato Composite Innovations B.V. Flexible sports helmet

Non-Patent Citations (1)

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Title
None *

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Publication number Publication date
EP3284359A1 (en) 2018-02-21
US20180049502A1 (en) 2018-02-22
CN205963032U (en) 2017-02-22

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