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EP0517091B1 - Schützende Kopfbedeckung - Google Patents

Schützende Kopfbedeckung Download PDF

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Publication number
EP0517091B1
EP0517091B1 EP19920108941 EP92108941A EP0517091B1 EP 0517091 B1 EP0517091 B1 EP 0517091B1 EP 19920108941 EP19920108941 EP 19920108941 EP 92108941 A EP92108941 A EP 92108941A EP 0517091 B1 EP0517091 B1 EP 0517091B1
Authority
EP
European Patent Office
Prior art keywords
insert
shell
rim portion
helmet
main portion
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.)
Expired - Lifetime
Application number
EP19920108941
Other languages
English (en)
French (fr)
Other versions
EP0517091A1 (de
Inventor
Louis Garneau
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.)
9001 6262 Quebec Inc
Original Assignee
9001 6262 Quebec Inc
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
Priority claimed from CA002043725A external-priority patent/CA2043725C/en
Application filed by 9001 6262 Quebec Inc filed Critical 9001 6262 Quebec Inc
Publication of EP0517091A1 publication Critical patent/EP0517091A1/de
Application granted granted Critical
Publication of EP0517091B1 publication Critical patent/EP0517091B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A42B3/06—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
    • A42B3/08—Chin straps or similar retention devices
    • 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
    • A42B3/28—Ventilating arrangements

Definitions

  • the present invention relates to safety or protective helmets for cyclists heads.
  • Conventional safety helmets comprise an impact resistant, hard external shell and an inner shock-absorbent liner which is contoured to fit and protect the head of the wearer.
  • the shock-absorbent portion of the helmet is made of a low-density soft material, such as expanded polystyrene foam, which is easily damaged and soiled during handling.
  • the liner of such a helmet must be relatively thick or the foam material of said liner must have a relatively high density, for instance ninety-six grams per liter (6 pounds per cubic foot).
  • Patent document FR-A-2 473 855 discloses (cf. page 2, line 9 - page 3, line 24 and Figs 1, 3, 5) a safety helmet for cyclists, comprising a hard external shell, a hard internal shell, and an intermediate shock-absorbing insert, said internal shell conforming with and adapted to fit the head of a wearer, and defining a bottom rim portion formed by an outwardly-extending web and a flange projecting upwardly from said web, said bottom rim portion thus defining an upwardly-opening trough, said insert conforming with and adhering to the outer surface of said internal shell and filling said trough, said insert having an external surface which is substantially flush with said flange, said external shell intimately conforming with, and adhering to, the external surface of said insert and having a bottom edge forming a joint with the top edge of said flange.
  • Patent documents US-A-4 845 786 discloses a safety helmet (see figs 1-4), wherein the external shell and internal shells form tube-like extensions surrounding their respective portions of said ventilation openings and protruding inwardly of said external shells and outwardly of said internal shell, respectively, the extensions of the external shell butting the extensions of the internal shell, said extensions forming a liner coating the surfaces of the insert which would otherwise be exposed in said ventilation openings .
  • An important object of the invention is to provide a safety helmet of the character described, having means to capture and retain to the helmet fragments of impacted parts thereof.
  • the preferred embodiment of the invention consists of a safety helmet for use with chin retention straps on a cyclist's head, comprising:
  • said rim portion has a front and a rear section adapted to extend across the forehead and the back of the head of the wearer, respectively, said insert being thicker at said rear section than at said front section, said web of said rear section having an orifice defined by a tubular extension upwardly extending in said trough and said insert being exposed in said orifice at the upper end of said tubular extension.
  • said internal shell is thinner relative to said external shell, and its flexibility, accordingly greater.
  • a generally annular marginal portion is defined between said rim portion and main portion of said internal shell, said marginal portion being flush with the adjacent areas of said insert main portion so that the whole internal face defined by said helmet be smooth, for comfort of said cyclist.
  • said joint is a lap joint.
  • said external shell forms inwardly-oriented tube-like extensions which protrude partially inside ventilation openings, said extensions forming a liner coating at least partially the surfaces of the insert.
  • said internal shell main portion further includes a number of transverse fingers spaced from one another, at least some of said fingers extending toward the inner face of said insert main portion and therethrough, so that the free end defined by each of said at least some of said fingers comes substantially flush with said insert main portion inner face.
  • the protective headgear or more commonly named safety helmet 10 of the invention, comprises an external shell 12, an internal shell 14, and a shock-absorbing insert 16.
  • Both shells 12 and 14 are made of hard yet resiliently flexible material, such as ABS, or similar thermoplastic material.
  • each shell 12, 14 has a thickness of about 0.3 millimeters.
  • the insert 16 is made of light weight, soft yet substantially rigid, shock-absorbing material, preferably expanded polystyrene foam.
  • the insert 16 preferably has a non-uniform thickness averaging about 30 millimeters.
  • the helmet of the invention has been provided with the insert having a density of only fifty-six (56) grams per liter (3.5 pounds per cubic foot).
  • the internal shell 14 is provided at its lower periphery with a bottom rim portion, indicated at 18, formed by an outwardly-extending web 20 and a flange 22 projecting upwardly from the web 20.
  • the rim portion 18 forms an upwardly-opening trough surrounding internal shell 14 and which is completely filled by the bottom portion of the insert 16.
  • the external shell 12 terminates downwardly short of the bottom portion of the insert 16, and its lower edge forms a joint 24 with the top edge of the flange 22.
  • the joint 24 is preferably a lap joint, as shown in Figure 5, but can be a butt joint, as shown at 24a in Figure 5a. In both cases, the joint is preferably covered, for aesthetic purposes, by a strip 26 adhered to the flange 22 and to the adjacent portion of the external shell 12. Strip 26 completely surrounds the helmet 10.
  • Internal shell 14 conforms with, and is adapted to cover, the wearer's head, including part of the forehead and the back of the head just above the neck.
  • the rear section of the rim portion 18 (at the left side of the figure) and the corresponding part of the insert 16 is thicker than the front section of rim portion 18 and corresponding part of the insert 16.
  • the rear section of the rim portion 18 is provided with a central orifice 28 defined by an upwardly-extending tubular extension 30, at the top of which is exposed the insert 16.
  • the orifice 28, with its tubular extension 30, is formed in an upwardly-recessed central section 32 of the rim portion 18, as shown in Figure 4.
  • Elongated cushioning patches 34 are adhered to the inside surface of the internal shell 14 and are adapted to contact the wearer's head while maintaining the internal shell 14 spaced from said head.
  • Each patch 34 includes velours or terry-like fabric.
  • the external shell 12 is provided with a pair of longitudinally-extending ribs 36, which protrude inwardly from the inner surface of the external shell 12, thereby forming grooves at the outer surface of the latter.
  • the internal shell 14 is provided with a pair of longitudinal grooves 38, which protrude outwardly from the external surface of the internal shell toward external shell 12.
  • the ribs 36 and 38 are longitudinally registering and are preferably diverging from back to front of the helmet.
  • Ventilation openings 40, 42 are formed through the helmet, more specifically through the external shell 12, the insert 16, and the internal shell 14. Ventilation openings 40 are located through the ribs 36, 38, while ventilating openings 42 are disposed along the central plane of the helmet, and also forwardly of the ribs 36 and 38. Obviously, additional ventilation openings could be provided. These ventilation openings are characterized by the fact that their portions formed in the internal shell 14 and external shell 12 are surrounded by tubular extensions 44 and 46, respectively. The extensions 44 inwardly protrude from the external shell 12, while the extensions 46 outwardly protrude from the internal shell 14. The two extensions abut against each other approximately mid-way of the thickness of the insert 16 to form a butt joint 50, as shown in Figure 6. Thus, the tubular extensions 44 and 46 completely line the surfaces of the insert 16 which would otherwise be exposed in the ventilation openings 40 and 42.
  • the helmet is provided with retention straps 52, 52a of known construction, and including length-adjusters 54 and chin straps 56, the latter only being partially shown.
  • the retaining strap 52 extends through a portion of two transversely-aligned ventilation openings 40 and underneath the external shell 12 through a passage formed by a transverse groove 58, made at the outer surface of the insert 16, and communicating with the two ventilation openings 40.
  • a pair of transversely-spaced strap-receiving orifices 60 are formed at the front of the helmet for the passage of the retaining strap 52a.
  • the two orifices 60 communicate with a transverse passage formed by a groove 62 at the outer surface of the insert 16.
  • the internal and external shells 14 and 12 are separately molded; the internal shell 14 is inserted in a mold in which is injected the material of the insert 16, the polystyrene then expanding within the mold to its final shape and adhering to the outer surface of the hot internal shell 14.
  • the resulting assembly once cured, is covered with the external shell 12 which is adhered to the insert 16 after the positioning of the retaining straps 52, 52a.
  • the patches 44 are finally positioned on the internal shell 14.
  • the resulting helmet is very light; it has a minimum of thickness and fully complies with the regulations governing the resistance to impact of such helmets.
  • the second preferred embodiment of helmet is illustrated at 110 in figures 10a and 11a, and referenced with the 100-series reference numerals corresponding to those of the first embodiment.
  • the alternate internal shell 114 - figures 8-11 - is made of a hard yet resiliently flexible material, similar to that of shell 14 of the first embodiment; however, its relative hardness will be substantially smaller.
  • shell 114 could then have a reduced thickness, e.g. 0,1 mm (about one third the thickness of shell 14). The reduced thickness of flexible shell 114 will consequently confer a greater flexibility thereto.
  • a second difference between the two internal shells is that shell 114 has preferably a much larger number of ventilation openings 140 formed therethrough.
  • the third and main difference between the internal shells is however in the way the internal shell 114 is mounted to the insert 116. Indeed, as best seen in figures 10a and 11a, the main portion of shell 114 is thicknesswisely embedded into insert 116, while the rim portion 118 of shell 114 is not - rim portion 118 forms an upwardly opening trough completely filled by the bottom edgewise portion of the insert 116.
  • the main, generally concave wall of internal shell 114 is concealed within the thickness of the insert 116, so that it is the inner wall of insert 116, and not the internal shell 114, that will come in contact with the top portion of the cyclist's head - except at the rim portion where internal shell portion 118 will project outwardly from the thickness of the insert 116 to engage around the side portions of the wearer's head in the known fashion.
  • a marginal annular portion 115 is thus defined on the inside face of the helmet 110, adjacent the rim portion 118, where the internal shell 114 transversely engages through the soft body of the insert 116 to become thicknesswisely embedded therein.
  • this marginal portion 115 will come flush with the internal wall of the insert 16, so as to define a smooth, non-irritating, inner surface joint for comfort of the wearer.
  • the second embodiment of helmet 110 there are in the second embodiment of helmet 110 two hard shells 112, 114 and one shock absorbing insert, 116.
  • all of the inner (concave) face of the helmet was lined with the internal shell 14
  • in the second embodiment 110 only the marginal rim portion 118 of the helmet is lined by the internal shell 114 while the major portion of its inner face is lined by the insert proper 116.
  • the advantage of having the internal shell 114 partially embedded into the soft bodied, yet substantially rigid insert 116, is in the impact absorbing capabilities of the helmet 110.
  • helmet 110 With the second embodiment of helmet 110, what will be enhanced is the capability of maintaining together a number of structural fragments of external shell 112 and/or internal shell 114 and/or insert 116, following impact fracturing of the helmet 110.
  • internal shell 114 which is embedded into the insert 116 (the latter covering the wearer's head), still provides a structural function for the helmet 110, in that it has a synergistic effect with the external shell 112 and insert 116, in providing very high impact resistance, as in the first embodiment of the invention.
  • the purpose of the helmet is to prevent head injuries, which usually occur when the cyclist loses control of his vehicle and falls to the ground. If the helmet becomes shattered and disintegrates after the initial ground impact, it will not help prevent head injuries if the cyclist's head strikes the ground for a second or third time - which could occur of course when the cyclist speed is relatively high before fall.
  • the outer face of the main concave wall portion of internal shell 114 is poked at a plurality of random locations, to define a plurality of inwardly projecting cavities 170.
  • Such cavities 170 define on the internal face of the internal shell 114, full convex "fingers" 170' (the mirror image of the cavities 170).
  • Cylindrical fingers 170' are destined to sink into the soft body of the insert 116 so as to more firmly anchor the shell 114 into the insert 116.
  • the apex of the internal shell 114 preferably also includes an outturned cylindrical finger 170'' with a conical tip, extending in a direction opposite fingers 170', for the same purpose as the latter.
  • the apices of outturned fingers 170' project through the inner face of the insert 116, so as to come flush with the inner face of insert 116.
  • the inner face of soft-bodied insert 116 is dotted with a number of small discs 170' made of hard material and spaced from each other.
  • the rear section of the rim portion 118 (at the left side of the figure) and the corresponding part of insert 116 is thicker than the front section of rim portion 118 and the corresponding part of insert 116.
  • the rear section of rim portion 118 is provided with a central orifice 128 defined by an upwardly-extending tubular extension 130, at the top of which is exposed insert 116.
  • Orifice 128, with its tubular extension 130, is formed in an upwardly-recessed central section 132 (figure 11a) of the rim portion 118.
  • the front and rear sections of rim portion 118 are adapted to extend across the forehead and the back of the head of the wearer, respectively.
  • Safety helmet 110 also has elongated ventilation openings 140 which are oriented in a substantially parallel fashion to the helmet longitudinal axis, as is known in the art.
  • external shell 112 forms tube-like extensions which protrude inside ventilation openings 140 and adjacent thereto to form a liner coating the insert 116 exterior surface. Since insert 116 is covered by internal shell 114 at the rim portion 118 and by external shell 112 on its outer surface and partially through ventilation openings 140, insert 116 will only be exposed partly on its inner surface, where cushioning patches (not shown) are applied, similar to patches 34 of the first embodiment of the invention.

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  • Helmets And Other Head Coverings (AREA)

Claims (7)

  1. Schutzhelm (110) zur Verwendung mit Kinn-Sicherungsbändern zum Halten auf dem Kopf eines Radfahrers, welcher umfaßt:
    (a) eine harte, elastisch biegsame äußere Schale (112);
    (b) eine harte, elastisch biegsame innere Schale (114), die einen Hauptabschnitt und einen Krempenabschnitt (118) definiert, wobei der letztere Krempenabschnitt von einem sich nach außen erstreckenden Steg und einem von dem Steg außen nach oben vorstehenden Flansch (122) gebildet ist, wobei der letztere Krempenabschnitt (118) so eine sich nach oben öffnende Rinne bildet;
    (c) einen weichen, stoßdämpfenden Einsatz (116), der ebenfalls einen Hauptabschnitt und einen Krempenabschnitt definiert, wobei der Hauptabschnitt des Einsatzes eine äußere Oberfläche definiert, die mit dem Kopf des Radfahrers im allgemeinen übereinstimmt und so ausgebildet ist, daß er auf den Kopf paßt, wobei der Krempenabschnitt des Einsatzes mit der äußeren Oberfläche des Krempenabschnitts (118) der inneren Schale übereinstimmt und an ihr haftet und die Rinne füllt; wobei der Krempenabschnitt des Einsatzes eine äußere Oberfläche aufweist, die im wesentlichen mit dem Flansch bündig ist; wobei die äußere Schale (112) mit der äußeren Oberfläche des Einsatzes übereinstimmt und an ihr haftet und eine untere Kante aufweist, die eine Verbindung mit der oberen Kante des Flansches (122) bildet; und
    (d) Lüftungsöffnungen (140), die sich jeweils durch die innere Schale (114), den Einsatz (116) und die äußere Schale (112) hindurch erstrecken,
    dadurch gekennzeichnet, daß der Hauptabschnitt der inneren Schale der verbesserten strukturellen Einheit des Helms wegen in den Hauptabschnitt des Einsatzes in Bezug auf dessen Dicke eingebettet ist, wobei der Krempenabschnitt (118) der inneren Schale mit den Seiten des Kopfes des Radfahrers umgebend übereinstimmt und so ausgelegt ist, daß er darum herum paßt.
  2. Schutzhelm (110) nach Anspruch 1, dadurch gekennzeichnet, daß ein Vorderseiten- und ein Rückseitenabschnitt des Krempenabschnitts (118) so ausgelegt sind, daß sie sich über die Stirn bzw. die Hinterseite des Kopfs des Trägers erstrecken, wobei der Einsatz (116) am Rückseitenabschnitt dicker als am Vorderseitenabschnitt ist, wobei der Steg des Rückseitenabschnitts eine Öffnung (128) aufweist, die von einem röhrenförmigen Fortsatz (130) definiert ist, der sich in der Rinne aufwärts erstreckt, und wobei der Einsatz (116) in der Öffnung (128) am oberen Ende des röhrenförmigen Fortsatzes (130) unbedeckt ist.
  3. Schutzhelm (110) nach Anspruch 1, dadurch gekennzeichnet, daß die innere Schale (114) bezüglich der äußeren Schale (112) dünner und ihre Biegsamkeit folglich größer ist.
  4. Schutzhelm (110) nach Anspruch 1, dadurch gekennzeichnet, daß ein im allgemeinen ringförmiger Randabschnitt zwischen dem Krempenabschnitt (118) und dem Hauptabschnitt der inneren Schale (114) definiert ist, wobei der Randabschnitt mit den benachbarten Bereichen des Hauptabschnitts des Einsatzes bündig ist, so daß die vom Helm definierte gesamte Innenseite des Komforts des Radfahrers wegen glatt ist.
  5. Schutzhelm (110) nach Anspruch 1, dadurch gekennzeichnet, daß die Verbindung eine Überlappung ist.
  6. Schutzhelm (110) nach Anspruch 1, dadurch gekennzeichnet, daß die äußere Schale (112) nach innen gerichtete röhrenartige Fortsätze (130) bildet, die in den Lüftungsöffnungen (140) vorstehen, wobei die Fortsätze (130) eine Deckschicht bilden, die Wenigstens teilweise die Oberflächen des Einsatzes (116) bedecken, der sonst in den Lüftungsöffnungen (140) unbedeckt wäre.
  7. Schutzhelm (110) nach Anspruch 1, wobei der Hauptabschnitt der inneren Schale weiterhin eine Anzahl von quer verlaufenden Fingern (170', 170'') beinhaltet, die mit Anstand voneinander angeordnet sind, wobei sich wenigstens einige der Finger (170') zur Innenseite des Hauptabschnitts des Einsatzes (116) hin und hindurch erstrecken, so daß das von jedem der wenigstens einigen Finger (170') definierte freie Ende mit der Innenseite des Hauptabschnitts des Einsatzes im wesentlichen bündig ist.
EP19920108941 1991-05-31 1992-05-27 Schützende Kopfbedeckung Expired - Lifetime EP0517091B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CA002043725A CA2043725C (en) 1991-05-31 1991-05-31 Safety helmet for cyclists
CA2043725 1991-05-31
US829287 1992-02-03
US07/829,287 US5231703A (en) 1991-05-31 1992-02-03 Protective headgear

Publications (2)

Publication Number Publication Date
EP0517091A1 EP0517091A1 (de) 1992-12-09
EP0517091B1 true EP0517091B1 (de) 1997-04-02

Family

ID=25674637

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920108941 Expired - Lifetime EP0517091B1 (de) 1991-05-31 1992-05-27 Schützende Kopfbedeckung

Country Status (2)

Country Link
EP (1) EP0517091B1 (de)
DE (1) DE69218661T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE164292T1 (de) * 1993-02-25 1998-04-15 Gerhard Sperber Helm, insbesondere fahrradsturzhelm sowie verfahren zu dessen herstellung
US5687426A (en) * 1993-02-25 1997-11-18 Elasto Form Bicycle helmet
CZ283823B6 (cs) * 1993-08-31 1998-06-17 Gerhard Sperber Přilba, zejména pro cyklisty, a způsob její výroby
USD372559S (en) 1995-01-17 1996-08-06 O.G.K. Hanbai Helmet for bicyclist
EP0975241A1 (de) * 1997-04-14 2000-02-02 9001 6262 Quebec Inc Radfahrerhelm mit einem mit mehreren öffnungen versehenen rand.
GB2409398A (en) * 2003-12-18 2005-06-29 Johnstone Safety Products Ltd Protective headgear
US7222374B2 (en) 2004-05-26 2007-05-29 Bell Sports, Inc. Head gear fitting system
US7111329B2 (en) 2004-06-29 2006-09-26 Bell Sports, Inc. Helmet reinforcement system
US7069601B1 (en) 2004-07-23 2006-07-04 Bell Sports, Inc. Head protection system and method
US8020219B2 (en) 2005-07-01 2011-09-20 Bell Sports, Inc. Strap anchor system and method
US9756893B2 (en) 2005-08-31 2017-09-12 Bell Sports, Inc. Integrated fit and retention system
US8117679B2 (en) 2006-03-22 2012-02-21 Fox Head, Inc. Molded articles and molding methods particularly for a protective helmet
EP3539402A1 (de) * 2018-03-12 2019-09-18 Jörn Steffens Stossdämpfende auskleidung für einen schutzhelm und schutzhelm mit dieser auskleidung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935044A (en) * 1971-12-23 1976-01-27 Noel Daly Method of manufacturing improved protective headgear
DE2901088A1 (de) * 1979-01-12 1980-07-17 Paul A Weigel Integralschutzhelm
FR2473855A1 (fr) * 1980-01-18 1981-07-24 Gallet Adrien Casque de protection
DE8120605U1 (de) * 1981-07-14 1981-10-01 Uvex Winter Optik GmbH, 8510 Fürth Schutzhelm
US4845786A (en) * 1987-06-24 1989-07-11 Chiarella Michele A Lightweight molded protective helmet
US4901373A (en) * 1988-03-07 1990-02-20 Bell Helmets, Inc. Helmet retention system with adjustable buckle
DE3910889A1 (de) * 1989-04-04 1990-10-11 Hochschorner K W Gmbh Helm
US4996724A (en) * 1989-10-20 1991-03-05 Innova-Dex Sports, Inc. Protective rim configuration for hard-shelled safety helmet

Also Published As

Publication number Publication date
EP0517091A1 (de) 1992-12-09
DE69218661D1 (de) 1997-05-07
DE69218661T2 (de) 1997-10-02

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