EP2425728A1 - Casque avec support intégré pour le verrouiller de manière sécurisée - Google Patents

Casque avec support intégré pour le verrouiller de manière sécurisée Download PDF

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Publication number
EP2425728A1
EP2425728A1 EP10175265A EP10175265A EP2425728A1 EP 2425728 A1 EP2425728 A1 EP 2425728A1 EP 10175265 A EP10175265 A EP 10175265A EP 10175265 A EP10175265 A EP 10175265A EP 2425728 A1 EP2425728 A1 EP 2425728A1
Authority
EP
European Patent Office
Prior art keywords
helmet
straps
lock
strap
locking
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Withdrawn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
EP10175265A
Other languages
German (de)
English (en)
Inventor
Sean Van Waes
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.)
Lazer Sport NV
Original Assignee
Lazer Sport NV
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 Lazer Sport NV filed Critical Lazer Sport NV
Priority to EP10175265A priority Critical patent/EP2425728A1/fr
Priority to EP11751611.2A priority patent/EP2611318B1/fr
Priority to CA2810106A priority patent/CA2810106C/fr
Priority to DK11751611.2T priority patent/DK2611318T3/en
Priority to US13/820,730 priority patent/US20130219597A1/en
Priority to PCT/EP2011/065306 priority patent/WO2012028742A1/fr
Priority to AU2011298307A priority patent/AU2011298307B2/en
Priority to ES11751611.2T priority patent/ES2527026T3/es
Priority to JP2013526500A priority patent/JP5951611B2/ja
Publication of EP2425728A1 publication Critical patent/EP2425728A1/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Withdrawn legal-status Critical Current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
    • A42B3/0406—Accessories for helmets
    • A42B3/0413—Anti-theft arrangements

Definitions

  • the present invention relates to the field of helmets.
  • helmets provided with integrated means for securely locking it, and preferably for securing it to an accessory such as a bicycle, a snowboard, skateboard, skis, or the like, which requires the use of said helmet.
  • a helmet to protect the head of an individual, such as for example activities in the fields of military, building, mining, and in particular sports such as flying (paragliding, hang gliding), mountaineering, skating, and cycling.
  • the helmet is generally held on the head with straps running under the chin, which must be adjusted to fit the individual, with generally a first strap running from the helmet, over the temple region and down to the chin and often a second strap starting from behind the ear and joining the first strap to further stabilize the helmet.
  • a helmet is a rather cumbersome object to carry around and it is often left behind until it is needed again.
  • the present invention concerns a helmet for protecting the head of a wearer from external impacts, said helmet comprising a shell, at least a pair of straps, one end of each of said straps being attached with attachment means to the shell and the other end comprising fastening means suitable for fastening the two straps together such that a continuous strap is formed running from one attachment means to the other, and passing under the chin of a person when worn, wherein,
  • the straps preferably comprise a fabric made of para-aramid fibres, UHMwPE, or glass fibres.
  • the fabric of the straps may have a density of at least 300 g / m 2 , preferably at least 400 g / m 2 , more preferably at least 500 g / m 2 .
  • the straps may also have a core / sheath structure.
  • the edges of the straps are preferably reinforced by one or a combination of: (a) hemming the edges one or several folds thick, (b) serging the edges with overlock stitches, or (c) coating the edges with a reinforcing material comprising a flexible polymer filled with particles of e.g., carbon, metal, or aramid.
  • the lock of the fastening means (8) may be unlocked with one or a combination of (a) a physical key to be introduced into a keyhole, (b) an alpha-numerical combination, (c) an electronic signal, and (d) an acoustic or optical signal.
  • a physical key to be introduced into a keyhole preferably a physical key to be introduced into a keyhole
  • an alpha-numerical combination preferably a a physical key to be introduced into a keyhole
  • an alpha-numerical combination e.g., an alpha-numerical combination
  • an electronic signal e.g., a acoustic or optical signal.
  • an acoustic or optical signal e.g., acoustic or optical signal.
  • a separate lock station suitable for locking at least one strap (3) of the helmet may advantageously be mounted onto an accessory requiring the use of said helmet, such as a bicycle, a motorcycle, skis, ski sticks, a snowboard, a skateboard, skates, and a paragliding bag.
  • the present invention also concerns the use of the chin straps of a helmet for locking said helmet together with an accessory requiring the use of said helmet, said accessory being selected among a bicycle, a motorcycle, skis, ski sticks, a snowboard, a skateboard, skates, and a paragliding bag.
  • a helmet as defined above is used.
  • the helmet may be locked together with said accessory by fastening and locking the two straps together, forming a continuous strap passing through an aperture in said accessory.
  • one strap may be fastened and locked to a locking station mounted on said accessory. It is safer if at least one of the straps is further passed through an aperture of an immovable object.
  • a traditional helmet provided with normal chin straps e.g., made of nylon, may easily be transformed into a helmet according to the present invention by using a kit of parts comprising
  • the lock slings are preferably made of a tough material such as fibres of para-aramid, UHMwPE, or glass to provide the necessary cut resistance to the composite straps.
  • the slings may be bonded to the helmet chin straps by using an adhesive or by sewing them together. A combination of adhesive and sewing is of course more secure.
  • the slings may be bonded to one face to the straps onto form a laminate, or to both faces to form a sandwich. Alternatively, the slings may be wide enough to wrap each strap and thus form a sheath around the nylon straps.
  • the present invention concerns a helmet (1) comprising means for securely locking it.
  • Figure 1 illustrates a helmet for bicycles but the present invention concerns any type of helmets (1) comprising a pair of chin straps (3) with fastening means (8) for fastening the two straps together under the chin of the wearer.
  • helmets for sports activities such as cycling, skiing, snowboarding, skateboarding, skating, paragliding, hangliding, and the like. It may also concern helmets for professional activities performed by the army, fire department, building companies, etc.
  • the present invention provides a helmet comprising integrated means for securely locking it to another object, preferably an immovable object or at least a more voluminous or heavier object which is difficult to displace inconspicuously. Contrary to solutions providing an additional shackle or cable integrated in the helmet, the present invention does not require any additional components to a helmet, but a locking functionality is added to the chin straps (3) of the helmet (1).
  • chin strap is sometimes used herein to refer to the straps (3) which are fixed to the helmet with fixing means (7), and that are to be run under the chin.
  • the chin straps (3) are usually provided with adjusting means (6) to adjust the length of the straps when fastened together. As a rule of thumb, it should not be possible to insert more than one finger's thickness between the strap and the throat.
  • the fastening means (8) for fastening the two straps together should be strong enough to resist impacts to be expected in the field of activity a helmet is designed for and, at the same time, should be easy to fasten and release.
  • the chin straps (3) are most often made of textile fibres, such as polyamide (nylon), polypropylene, or even polyaramid (e.g., Kevlar) for high quality helmets, which are woven, braided, or even knitted.
  • the straps (3) should be sufficiently resistant to maintain the helmet in place in case of impact.
  • the present invention provides the chin straps (3) with an additional locking function for securely locking the helmet to another object, such as a post or a fence, when not in use. This is achieved by using a cut resistant strap (3) and fastening means (8) having a lock (8A).
  • the word "lock” is used herein to refer to a closing device which can be opened only with a key.
  • the key may be a physical key, an alpha-numerical combination, an electronic signal, an acoustic or optical signal and the like.
  • securely locking means herein that once locked, it is not possible for a third person to take away the helmet without special tools or special abilities for picking locks. Theft proof locks do not exist.
  • the straps (3) of the helmets of the present invention must have a cut resistance of at least 20 g / mm, measured according to ASTM F1790-05.
  • the straps (3) have a cut resistance of at least 40 g / mm, more preferably at least 75 g / mm, at least 100 g / mm or at least 1 20 g / mm, and most preferably at least 140 g / mm. The higher the cut resistance of the straps, the higher the level of security against theft can be achieved.
  • the chin straps (3) for the helmets of the present invention must be as comfortable as nylon straps (3) and at the same time highly cut resistant. This can be achieved in different ways.
  • a core/sheath structure can be used, with a traditional sheath fabric made of e.g. nylon, and a cut resistant core, such as a metal strip or fabric, or other well known tough materials.
  • This solution substantially increases the cut-resistance of the straps, but is not adapted for helmets where weight is important, such as in most sports.
  • An alternative solution is to replace the nylon fibres of traditional straps with tough fibres and/or to increase the webbing density.
  • fibres such as para aramid (e.g., Kevlar®, Twaron®), UHMwPE (e.g., Dyneema®), glass fibres are regularly used for making cut resistant gloves because they are extremely strong and tough. Special shears are required to cut fabrics made of these materials which would not yield to normal scissors or knives. Examples of shears designed for cutting such fabrics can be found in http://jaeberly.com/id7.html.
  • Kevlar ® Helmets provided with straps made of Kevlar ® are available on the market (cf. http://www.spoke.ie/2010 /03/on ⁇ test ⁇ met ⁇ helmets/), but such straps do not necessarily meet the cut resistance requirements of a locking system, because the cut resistance of the straps also depends on the density of the webbing. It is clear that a loose braid is easier to cut than a densely braided strap. For instance, a strap made of a 680 g / m 2 braid made of para-aramid fibres (Kevlar ® ) has a cut resistance of about 50 g / mm (ASTM F1 790-05).
  • straps made of para-aramid fibres should preferably have a density of at least 400 g / m 2 , preferably at least 500 g / m 2 .
  • Lower web densities of the order of at least 300 g/m 2 can be used with UHMwPE because the fibres themselves have a lower density than para-aramid fibres.
  • the cut resistance of the straps (3) can further be enhanced by reinforcing the edges thereof.
  • the edges may be reinforced with a higher fibre concentration, e.g., by hemming the edges one or several folds thick and/or by serging the edges with overlock stitches.
  • the edges may be coated with a reinforcing material, such as a flexible polymer filled with particles of carbon, metal, aramid, and the like.
  • the fastening means (8) of the straps (3) must be provided with locking means (8A) to secure the helmet when not in use.
  • the locking means (8A) may be unlocked with any type of key such as a physical key to be introduced into a keyhole, an alpha-numerical combination, an electronic signal, an acoustic or optical signal, like a barcode. It is clear that locking the fastening means by accident when the helmet is being worn is to be avoided at all cost, since it would be quite uncomfortable to try to unlock an alpha-numerical lock located under the wearer's chin. This can be avoided quite simply by providing activating means (8B) for activating the locking function of the fastening means (8).
  • such lock activating means (8B) may consist of a switch with an on/off position, or a pair of buttons to be pressed simultaneously while fastening the straps, e.g., located on either side of the fastening means, on the faces facing towards and away from the wearer's skin.
  • a double movement of simultaneously pressing and rotating some feature of the fastening means would efficiently prevent any accidental locking of the straps, and still be easy to lock when needed.
  • the locking means (8A) of the helmets (1) of the present invention should be suitable for locking the two straps (3) together. They may also be suitable for locking one strap (3) of the helmet to a mating locking station mounted on an accessory requiring the use of said helmet, such as a bicycle, a motorcycle, skis, ski sticks, a snowboard, a skateboard, skates, or a paragliding bag.
  • the helmet and accessory can thus be locked together by running one strap through an opening too small to allow neither the helmet nor the accessory therethrough, such as between two spokes of a bike wheel or through a wire mesh fence.
  • a wearer may be reluctant to purchase a new helmet. It is possible to transform a traditional helmet comprising normal chin straps (3) e.g., made of nylon (PA6) and fastening means (8) which are not suitable for securely locking the helmet, into a secure locking helmet according to the present invention.
  • the lock (8A) should be suitable for comfortably and easily fastening and un-fastening the chin straps under the chin when in use, and for securely locking the helmet when not in use.
  • the fastening means (8) mounted on the helmet straps (3) shall be dispensed of.
  • An interlocking element of the lock (8A) is tied to a sling (1 3), either permanently, e.g., with stitches or simply by running the sling (13) into a slot of the lock element (8A).
  • at least one sling is tied to a lock element such as to allow adjustment of the length thereof, without allowing, however, its removal.
  • the sling (13) is made of a cut resistant material such as discussed above with respect of other embodiments of the present invention, such as fibres of para-aramid, UHMWPE, or glass.
  • the sling (13) may be bonded to the nylon straps (3) with any known means allowing a permanent bond to be formed without impairing the integrity of the straps and slings. It is preferred to use an adhesive (21) as bonding means. Many adhesive allow a secure bonding between two fabrics to be obtained quite simply, optionally by application of heat and/or pressure to the surfaces to be bonded. Alternatively or additionally, the two fabrics may be sewed together with stitches (21) at appropriate locations.
  • the composite strap thus obtained shall be cut resistant with a cut resistance according to ASTM F1790-05 of at least 20g/mm, preferably of at least 40 g / mm, more preferably at least 75 g / mm, at least 1 00 g / mm or at least 120 g / mm, and most preferably at least 140 g / mm.
  • the sling should preferably cover the whole length of the nylon straps (3) up to their fixing point (7) to the helmet, or at least over the whole length which is easily accessible with a knife, in order to not allow access to a section of the straps which is easy to cut with normal scissors or knife.
  • a sling (13) may simply be laminated onto a strap (3) to form a two layer laminate, with optionally a coat of glue in between.
  • a three layer laminated strap can be obtained with a nylon strap (3)sandwiched between two layers of reinforcing slings (13) as illustrated in Figure 2(b) by passing the sling into a slot in the lock (8A) to yield two sling ends and by sandwiching the strap (3) with the two sling ends thus obtained.
  • the sling ends may be glued and/or stitched to the strap (3).
  • the sling may also be wide enough to wrap the strap (3) to form a sheath around the strap as illustrated in Figure 2(c) .

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  • Helmets And Other Head Coverings (AREA)
EP10175265A 2010-09-03 2010-09-03 Casque avec support intégré pour le verrouiller de manière sécurisée Withdrawn EP2425728A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP10175265A EP2425728A1 (fr) 2010-09-03 2010-09-03 Casque avec support intégré pour le verrouiller de manière sécurisée
EP11751611.2A EP2611318B1 (fr) 2010-09-03 2011-09-05 Casque comprenant un moyen intégré destiné à le verrouiller fixement
CA2810106A CA2810106C (fr) 2010-09-03 2011-09-05 Casque comprenant un moyen integre destine a le verrouiller fixement
DK11751611.2T DK2611318T3 (en) 2010-09-03 2011-09-05 HELMET WITH BUILT-IN EQUIPMENT FOR SAFE LOCKING
US13/820,730 US20130219597A1 (en) 2010-09-03 2011-09-05 Helmet with integrated means for securely locking it
PCT/EP2011/065306 WO2012028742A1 (fr) 2010-09-03 2011-09-05 Casque comprenant un moyen intégré destiné à le verrouiller fixement
AU2011298307A AU2011298307B2 (en) 2010-09-03 2011-09-05 Helmet with integrated means for securely locking it
ES11751611.2T ES2527026T3 (es) 2010-09-03 2011-09-05 Casco con medios integrados para bloquearlo de manera segura
JP2013526500A JP5951611B2 (ja) 2010-09-03 2011-09-05 ヘルメットを確実に固定するための一体手段を備えたヘルメット

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10175265A EP2425728A1 (fr) 2010-09-03 2010-09-03 Casque avec support intégré pour le verrouiller de manière sécurisée

Publications (1)

Publication Number Publication Date
EP2425728A1 true EP2425728A1 (fr) 2012-03-07

Family

ID=43478687

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10175265A Withdrawn EP2425728A1 (fr) 2010-09-03 2010-09-03 Casque avec support intégré pour le verrouiller de manière sécurisée
EP11751611.2A Active EP2611318B1 (fr) 2010-09-03 2011-09-05 Casque comprenant un moyen intégré destiné à le verrouiller fixement

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11751611.2A Active EP2611318B1 (fr) 2010-09-03 2011-09-05 Casque comprenant un moyen intégré destiné à le verrouiller fixement

Country Status (8)

Country Link
US (1) US20130219597A1 (fr)
EP (2) EP2425728A1 (fr)
JP (1) JP5951611B2 (fr)
AU (1) AU2011298307B2 (fr)
CA (1) CA2810106C (fr)
DK (1) DK2611318T3 (fr)
ES (1) ES2527026T3 (fr)
WO (1) WO2012028742A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9125446B2 (en) 2012-09-11 2015-09-08 James D. Wegener Helmet with a chin strap buckle system
GB201306831D0 (en) 2013-04-15 2013-05-29 St Gallay Martin Helmet locking device
ITMI20131885A1 (it) * 2013-11-13 2015-05-14 Solotre Ltd Dispositivo antifurto
FR3020924B1 (fr) * 2014-05-16 2016-06-24 Zedel Serre-nuque basculant pour casque de protection
US10188177B2 (en) 2015-08-17 2019-01-29 Bell Sports, Inc. Friction stop strap adjustor
JP2023046503A (ja) * 2021-09-24 2023-04-05 株式会社Shoei ヘルメット及び顎紐
US20240188668A1 (en) * 2022-12-12 2024-06-13 Michael Arrington Helmet With Lock Assembly Device

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CA2810106C (fr) 2017-01-31
JP5951611B2 (ja) 2016-07-13
US20130219597A1 (en) 2013-08-29
WO2012028742A1 (fr) 2012-03-08
CA2810106A1 (fr) 2012-03-08
DK2611318T3 (en) 2015-01-19
EP2611318B1 (fr) 2014-11-12
EP2611318A1 (fr) 2013-07-10
JP2013536903A (ja) 2013-09-26
ES2527026T3 (es) 2015-01-19
AU2011298307A1 (en) 2013-03-14
AU2011298307B2 (en) 2015-07-16

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