WO2005082187A1 - Casque de protection semi-rigide - Google Patents
Casque de protection semi-rigide Download PDFInfo
- Publication number
- WO2005082187A1 WO2005082187A1 PCT/FR2005/000111 FR2005000111W WO2005082187A1 WO 2005082187 A1 WO2005082187 A1 WO 2005082187A1 FR 2005000111 W FR2005000111 W FR 2005000111W WO 2005082187 A1 WO2005082187 A1 WO 2005082187A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- scales
- cap
- helmet
- helmet according
- scale
- Prior art date
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
- A42B3/06—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
- A42B3/064—Impact-absorbing shells, e.g. of crash helmets with reinforcing means using layered structures with relative movement between layers
-
- 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
-
- 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
Definitions
- the invention relates to a protective helmet comprising a deformable inner cap, a plurality of rigid outer flakes spread over the cap so as to form at least one crest scale, at least one occipital flake and a plurality of lateral transverse flakes, and connecting means of flexible material, ensuring the join between the scales.
- the helmet is relatively heavy, bulky, with a one-piece outer shell to ensure protection and safety, to the detriment of the aesthetic appearance and comfort sought by the user.
- the document WO-A1-9806285 describes a protective helmet adapting to the morphology of the head of the user, in order to guarantee both protection, safety and comfort.
- the helmet 1 comprises an inner layer 3 consisting of a damping element 2 and a plurality of structures 3a to 3g fixed on the damping element 2 and separated into several regular parts.
- the helmet 1 also comprises an outer layer 4 consisting of a plurality of longitudinal panels 4a to 4g of substantially identical shape and spaced longitudinally so as to be interposed between the structures 3a to 3g.
- the panels 4a to 4g are all connected by their upper edge to an upper ring 5.
- the structures 3a to 3g are connected to the panels 4a to 4g by flexible connection means 6, flexible elastic material ( Figure 2).
- These elastic links 6 allow the structures 3a to 3g to deviate from each other and to vary the size of the helmet 1, during the introduction of the helmet 1 on the head of the user. This configuration of the helmet 1 thus allows the user to adapt the size of the helmet 1 to the morphology of his head.
- the structures 3a to 3g and the panels 4a to 4g are provided by the structures 3a to 3g and the panels 4a to 4g, made of relatively rigid materials.
- the adaptation to the morphology of the head of the user is provided by the elastic links 6, consisting of flexible elastic textile pieces connecting the structures 3a to 3g to the panels 4a to 4g.
- the deformation of the helmet 1 is not optimum. Indeed, the panels 4a to 4g are all longitudinal ( Figure 1). Their deformation is therefore regular over the entire circumference of the helmet 1. This deformation is constrained by the elastic links 6, which generate a phenomenon of elastic return of the panels 4a to 4g on the structures 3a to 3g. The elastic links 6 urge the panels 4a to 4g towards their rest position, and cause a compression effect at the head. The user may then feel headaches after prolonged use of the helmet 1.
- the adaptation to the morphology of the head is not optimal. Comfort is also problematic because the damping element 2 is connected to the panels 4a to 4g through the structures 3a to 3g.
- the relative deformations of the panels 4a to 4g and the structures 3a to 3g are therefore dependent.
- the structure of this helmet 1 generates, moreover, congestion problems, especially in storage mode, because the panels 4a to 4g, connected to the upper ring 5, are rigid and hardly foldable.
- the documents DE 199 36 368 and US 3208080 each describe a protective helmet having a large number of small scales distributed over the entire outer layer of the helmet.
- the helmet comprises a network of cords inserted in its inner layer, to adjust the size of the helmet according to the size of the head of the user.
- the object of the invention is to remedy these drawbacks and to provide a protective helmet that can be adapted to different head morphologies, and to optimize the comfort and protection of a user.
- this object is achieved by a helmet according to the appended claims and, more particularly, by the fact that the scales and the connecting means of flexible material are connected to the cap, so as to allow a slight slip between the calotin and at least some of the scales.
- Figure 1 shows a protective helmet according to the prior art.
- FIG. 2 shows a sectional view of the helmet according to FIG. 1.
- FIGS. 3 and 4 show two perspective views of one embodiment of a helmet according to the invention.
- Figures 5 and 6 show schematically two views in exploded perspective of an alternative embodiment of a protective helmet according to the invention.
- FIG. 7 represents a perspective view of the helmet without the cap according to FIGS. 3 and 4.
- FIG. 8 represents a perspective view of the cap of the helmet according to FIGS. 3, 4 and 7.
- Figures 9 and 10 show schematically two embodiments of an adjusting element of the head of two embodiments of a protective helmet according to the invention.
- FIG. 11 schematically represents a sectional view of part of the helmet structure according to FIGS. 3, 4 and 7 to 10.
- Figure 12 schematically shows a sectional view of a portion of the structure of an alternative embodiment of a helmet according to the invention.
- Figure 13 schematically shows a sectional view of a portion of the structure of an alternative embodiment of a protective helmet according to the invention.
- Figure 14 schematically shows a sectional view of a portion of a cap of an alternative embodiment of a helmet according to the invention.
- Figures 15 to 18 show schematically a part of the structure of several embodiments of a protective helmet according to the invention.
- a helmet 1 comprises an inner layer constituted by a deformable quill 7, flexible connecting means constituted, for example, by a cap 8, and an outer layer constituted by a plurality of rigid flakes 9.
- the flakes 9 are integral with the cap 8 and are articulated with respect to each other via the cap 8.
- the scales 9 are fixed and distributed on the cup 8 so as to form a crest scale 9a, an occipital scale 9b, four lateral transverse scales 9c, and a frontal scale
- the different flakes 9 are non-contiguous and are separated from each other by intervals 10. These separation intervals 10 allow for a very flexible articulation of the flakes 9, when the installation of the helmet 1 on the head of the user.
- the cap 8 is connected to the cap 7 so as to allow a slight slippage between the cap 7 and part of the scales 9, during the shaping of the helmet 1 on the head of a user.
- the connection between the cap 7 and the cap 8 is made, for example, by a back of the cap 8, which comes to wrap the cap
- An alternative embodiment consists in making the connection between the cap 7 and the cap 8 by gluing the cap 7 and the cap 8 under the crest scale 9a.
- the crest scale 9a is then fixed on the cap 7, while the frontal flake 9d, the occipital flake 9b and the lateral transverse flakes 9c form "the headband" of the helmet 1 and are intended to make the slight slip relative to the cap 7, during the introduction of the helmet 1 on the head of the user.
- the scales 9 are rigid and, preferably, of impact resistant material.
- the chosen material should preferably be sufficiently rigid so as to distribute the impact of the shocks evenly over the entire cap 7.
- the material is chosen, for example, from a polycarbonate (PC), a copolymer formed from Acrylonitrile, butadiene and styrene (denoted ABS), a long fiber composite with a thermoplastic or thermosetting matrix, or even aluminum.
- the thickness of the flakes 9 is preferably of the order 1 mm to 3 mm.
- Flakes 9 are made by methods known in the industry, including injection, thermoforming, compression or stamping. For example, it is possible to directly inject the crest scale 9a on the cup 8, and to glue or weld the other scales 9 on the cup 8. It is also possible to weld, sew or even paste all the scales 9, or part of the scales 9, in the same way.
- the protective helmet 1 differs from the preceding embodiment in the shape of the flakes 9.
- These may comprise edges 19, of smaller thickness or equal to that of the scales 9, intended to obstruct the separation intervals 10 between the scales 9, to prevent penetration of sharp object and enhance the safety of the user.
- the edges 19 are superimposed above or below the adjacent scales 9 with which they cooperate, to optimize the safety of the user.
- the transverse lateral scales 9c comprise edges 19c intended to cooperate with the crestal flake 9a and the occipital flake 9b
- the frontal flake 9d includes an edge 19d intended to cooperate with the flake crest 9a and part of the transverse side scales 9c
- the occipital shuck 9b has an edge 19b, intended to cooperate with the crest scale 9a.
- the flakes 9 are thermoformed in the same plate, so as to form a single shell completely covering the cap 7, with thick areas constituting the scales 9 and thin areas constituting bridges of material connecting the scales 9.
- the thinned zones constitute hinges for the articulation of the scales 9 and make it possible to meet the various safety criteria, concerning in particular the test of penetration of a cone imposed, in particular, by the standard EN 1077 .
- the cup 8 is textile or elastomer. It is preferably perforated to promote aeration.
- the cup 8 is preferably made with an anti-perforation textile promoting ventilation, the high tenacity polyester type.
- the helmet 1 advantageously comprises fastening straps 12 integral with the cap 8.
- the helmet 1 comprises a jugular strap 12a and a harness strap 12b.
- the harness strap 12b surrounds the cap 7 from above and from the rear, to ensure good safety and good resistance to loosening.
- the jugular strap 12a and the harness strap 12b are, for example, sewn or riveted on the cup 8.
- the cap 7 illustrated in Figures 7 and 8 is made of a semi-rigid cellular material, absorbing the energy of shocks in compression, and deformable in flexion by its material and its geometry, in order to marry to the maximum the shape of the head of the user, when setting up the helmet 1.
- the helmet 1 behaves like a real deformable shell.
- the bung 7 is made, for example, by a flat cut in a sheet of polymer foam, for example, expanded polypropylene.
- the foam is calibrated in thickness, of the order of 15mm to 30mm, and in density, of the order of 60 g / l to 100g / l.
- the damping properties of this type of foam have a memory effect allowing the resumption of its initial shape after an impact.
- the calotin 7 returns to its original shape after an impact on the helmet 1.
- the cap 7 advantageously comprises a plurality of cutouts 11 on the thickness of the wall of the cap 7.
- the cuts 11 are preferably offset with respect to the intervals 10 separating the scales 9, in particular for reasons of safety and to avoid any possible penetration of sharp objects.
- the main purpose of cutouts 11 is to promote the deformation of the calotin 7, during the introduction of the helmet 1 on the head of the user. They also allow good air circulation captured by ventilation openings 15 made in the crest scale 9a ( Figures 3 and 7). Indeed, the openings 15 are preferably opposite the cutouts 11 of the cap 7 ( Figure 7).
- the helmet 1 advantageously comprises an adjustment element 14 of the headband, designed to adjust the size of the helmet 1 and better distribute the tightening at the headband of the head. user, to optimize comfort.
- the adjustment element 14 is preferably inserted in the occipital shingles 9b and makes it possible to bring together all the scales 9 constituting the headband of the helmet 1, namely the occipital shingles 9b, the frontal shingles 9d and a part of transverse lateral scales 9c.
- the adjustment element 14 is constituted by a fast fastening strip, or a self-gripping band, connecting the occipital flaking 9b and two transverse lateral flakes 9c.
- the adjustment is effected by means of a multidirectional lacing system.
- the adjustment element 14 comprises a lace 20 wrapping around a knurled knob 21 fixed, preferably, on the occipital shingles 9b.
- the lace 20 interconnects the scales 9 forming the headband of the helmet 1, passing through clamping points 22, preferably arranged on the edges of the scales 9.
- the operation of the adjusting element 14 is to actuate the button 21, for example, clockwise, to tighten the helmet
- the adjustment is effected by means of a rack and pinion system.
- the adjusting element 14 comprises a tongue 23, provided with a plurality of teeth 24 constituting a rack, intended to cooperate with a pinion 25 fixed, preferably, on occipital scale 9b.
- the tongue 23 is formed, for example, in the extension of a lateral shell 9c and fits into the pinion 25 of occipital scale 9b, to bring the scales 9 forming the headband of the helmet 1.
- Telement 14 is to slide the teeth 24 inside the pinion 25, to tighten the helmet 1, and to press two buttons 26 of the pinion 25, to release the tongue 23 and loosen the helmet 1.
- FIG 11 the arrangement of the three layers, namely the cap 7, the cap 8 and the scales 9, is shown.
- the cap 8 completely covers the cap 7, and the cutouts 11 of the cap 7 are offset with respect to the intervals 10 between the scales 9.
- the cap 8 represents the flexible connection ensuring the articulation between the scales 9. This configuration therefore promotes sliding sought between the cap 7 and the scales 9 to obtain optimum deformation of the helmet 1.
- the embodiment variant according to FIG. 12 is distinguished from the previous embodiment by the shape of the cap 7.
- the cap 7 comprises thinned areas 16 in the thickness of the wall of the cap 7, so as to promote the deformation of the cap 7
- the thinned zones 16 are preferably offset with respect to the intervals between the scales 9. This configuration of the cap 7 with the thinned zones 16 makes it possible to avoid any risk of introduction of a sharp object through the helmet 1, significantly improving the safety of the user.
- An alternative embodiment shown in Figure 13 consists of making a cap 7 having a structure in mille-feuille.
- the cap 7 is constituted by a superposition of sheets 27, having good compression damping characteristics and flexural flexibility, in order to ensure greater deformation ability of the entire cap 7, for comfort and ease. the user's security.
- the sheets 27, preferably made of foam, may be of different types, in order to offer a gradual variation in the density of the cap 7, to promote comfort and shock absorption.
- FIG. 14 An alternative embodiment of the helmet 1, shown schematically in Figure 14, differs from the previous by the shape of the cup 8.
- compartments 13, in which are housed the scales 9, are formed on the cup 8.
- the scales 9 are free inside the compartments 13, integral with the cup 8.
- the compartments 13 are formed on their inner face with a material identical to that of the cup 8 and on their outer face, with a much more decorative material.
- the helmet 1 allows a slight slip between the scales 9 and the cap 8.
- the deformation of the helmet 1 is optimum with a slight slip at a time between the cap 7 and the scales 9, and between the cup 8 and the scales 9.
- this embodiment makes it possible to choose different fabrics for the compartments 13 covering the scales 9 and to use, for example, scales 9 having a coarse finish state.
- the advantage of such a solution with respect to the welding or gluing resides, also, in the exploitation of the possibly elastic properties of the textile over the entire surface of the cup 8.
- the embodiment variant of the helmet 1 differs from the preceding ones by the flexible linkage means articulating the scales 9.
- the cap 7 is integral with the crest scale 9a and has the cutouts 11 offset with respect to the separation intervals 10 between the scales 9.
- the crest scale 9a and the lateral transverse flakes 9c are hinged relative to each other by means of strips 17, for example, of flexible material.
- the strips 17 are made, for example, with the same fabric as that used for the cap 8 in the previous embodiments.
- the strips 17 may be made of elastomer.
- the flakes 9 are non-contiguous and the separation intervals 10 between the flakes 9 are filled by telastomere constituting the strips 17, which avoids any possible penetration of an object and improves the safety of the user.
- the scales 9 may have a slight overlap, in order to guarantee the anti-perforation characteristic of the helmet 1 and, particularly, to satisfy the requirements of the EN 1077 standard.
- the scales 9 are hinged by strips 17 of flexible material or elastomer and the covering of the scales 9 does not affect the slight slippage between the cap 7 and the scales 9, during the introduction of the helmet 1 on the head of the user.
- the helmet 1 may comprise a plurality of additional flakes 18 integral with the cap 7 and arranged opposite the separation intervals 10 between the flakes 9.
- the flakes 9 are articulated by strips 17 of material flexible or elastomeric, arranged opposite additional scales 18. The anti-perforation characteristic of the helmet 1 is then ensured.
- the helmet 1 advantageously comprises an outer textile shell covering the scales
- This outer shell provides a helmet 1 with a much more aesthetic appearance.
- the outer shell may cover only a portion of the scales 9. It is possible, for example, to leave the crest scale 9a apparent and to cover the other scales 9b, 9c and 9d with the outer shell.
- This very advantageous configuration makes it possible to envisage a multitude of possible ranges for the helmet 1, by varying the combinations of materials and colors of the outer envelope and the scallop scale 9a.
- the helmet 1 thus becomes easier to store and transport, for example, in a backpack.
- This deformable helmet structure can cover several sizes of helmets (2 to 3 sizes), due to the flexibility of the structure, the possibility of sliding between the layers and adjusting element 14 of the headband.
- This helmet can realize a coverage of sizes (for example from size 50 to size 63) with a limited number of references.
- the reduction of the weight of the helmet 1 is important, thanks to an optimization of the thicknesses and the volume of the cap 7.
- the useful thickness of the foam of the cap 7 is optimized to match the shape of the head.
- the reduction of the dead volume usually necessary to adjust the comfort makes it possible to place the cap 7 as close to the head as possible.
- the main effect is the decrease of the lever effect caused by a shock on a surface too far from the head.
- the helmet 1 does not accelerate before abutting on the user's head.
- the impact surface is better distributed, resulting in improved comfort and safety.
- the configuration of the helmet 1 with the scales 9 allows a real boot of the helmet 1, with an excellent adaptation to the shape of the head, thanks to the relative mobility of each shell 9.
- the occipital scale 9b well pressed against the head of the the user leads to a better helmet 1 and an increased sense of security.
- the position and the distinctive shape of the scales 9 and the intervals 10 result in optimum deformation.
- the greater the number of scales 9 is important, the more the comfort of the user is improved.
- the user does not feel a springback can cause headaches and the headset 1 has a reduced overall volume, while remaining easy and comfortable to put on.
- the helmet 1 is more aesthetic, less protruding, because its overall appearance is more like a hat.
- the helmet 1 also improves the field of view of the user because it is closer to the head.
- the variation of a range of helmet 1 is easy, thanks to all the possible combinations of materials and colors for Scales of Crest 9a, the other scales 9, and the possible outer envelope covering the scales 9.
- This concept of helmet 1 is available on stylistic and functional versions specific to each world of practice: aquatic, cycle, motorcycle, skate & roller, caving, mountain, climbing, skiing, snowboarding, etc.
- the invention is not limited to the various embodiments described above. As in all types of helmets, it is possible to fill the inside of the helmet 1 with a draining, breathable and antibacterial fabric to improve the comfort of contact between the head and the cap.
- the calotte 7 thus formed has, thanks to a granular behavior, a very great aptitude for deformation.
- the flakes 9 can be thermoformed in a single operation from a plate, then cut with a jet of water or a numerically controlled machining, and then fixed on the cap 8 or the strips 17.
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- Helmets And Other Head Coverings (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/587,337 US20070157370A1 (en) | 2004-01-28 | 2005-01-18 | Semi-rigid protective helmet |
EP05717442A EP1708587B1 (fr) | 2004-01-28 | 2005-01-18 | Casque de protection semi-rigide |
JP2006550228A JP2007522352A (ja) | 2004-01-28 | 2005-01-18 | 半硬質の保護用ヘルメット |
DE602005005786T DE602005005786T2 (de) | 2004-01-28 | 2005-01-18 | Halbstarrer schutzhelm |
ES05717442T ES2304693T3 (es) | 2004-01-28 | 2005-01-18 | Casco de proteccion semirrigido. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0400797A FR2865356B1 (fr) | 2004-01-28 | 2004-01-28 | Casque de protection semi-rigide |
FR0400797 | 2004-01-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005082187A1 true WO2005082187A1 (fr) | 2005-09-09 |
Family
ID=34717465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2005/000111 WO2005082187A1 (fr) | 2004-01-28 | 2005-01-18 | Casque de protection semi-rigide |
Country Status (9)
Country | Link |
---|---|
US (1) | US20070157370A1 (fr) |
EP (1) | EP1708587B1 (fr) |
JP (1) | JP2007522352A (fr) |
CN (1) | CN100500040C (fr) |
AT (1) | ATE390861T1 (fr) |
DE (1) | DE602005005786T2 (fr) |
ES (1) | ES2304693T3 (fr) |
FR (1) | FR2865356B1 (fr) |
WO (1) | WO2005082187A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009516779A (ja) * | 2005-11-23 | 2009-04-23 | ボズ コープ プロプライアタリ リミテッド | 保護ヘルメット |
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-
2005
- 2005-01-18 JP JP2006550228A patent/JP2007522352A/ja active Pending
- 2005-01-18 ES ES05717442T patent/ES2304693T3/es active Active
- 2005-01-18 US US10/587,337 patent/US20070157370A1/en not_active Abandoned
- 2005-01-18 AT AT05717442T patent/ATE390861T1/de not_active IP Right Cessation
- 2005-01-18 EP EP05717442A patent/EP1708587B1/fr not_active Not-in-force
- 2005-01-18 CN CNB2005800033714A patent/CN100500040C/zh not_active Expired - Fee Related
- 2005-01-18 WO PCT/FR2005/000111 patent/WO2005082187A1/fr active IP Right Grant
- 2005-01-18 DE DE602005005786T patent/DE602005005786T2/de active Active
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JP2009516779A (ja) * | 2005-11-23 | 2009-04-23 | ボズ コープ プロプライアタリ リミテッド | 保護ヘルメット |
US8176574B2 (en) | 2005-11-23 | 2012-05-15 | Voz Corp Pty Ltd | Protective helmet |
Also Published As
Publication number | Publication date |
---|---|
DE602005005786T2 (de) | 2009-04-09 |
EP1708587A1 (fr) | 2006-10-11 |
ATE390861T1 (de) | 2008-04-15 |
CN1913796A (zh) | 2007-02-14 |
US20070157370A1 (en) | 2007-07-12 |
ES2304693T3 (es) | 2008-10-16 |
JP2007522352A (ja) | 2007-08-09 |
EP1708587B1 (fr) | 2008-04-02 |
FR2865356A1 (fr) | 2005-07-29 |
FR2865356B1 (fr) | 2007-01-12 |
CN100500040C (zh) | 2009-06-17 |
DE602005005786D1 (de) | 2008-05-15 |
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