EP0081210B1 - Safety helmet, especially for the users of motor vehicles - Google Patents

Safety helmet, especially for the users of motor vehicles Download PDF

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Publication number
EP0081210B1
EP0081210B1 EP82111178A EP82111178A EP0081210B1 EP 0081210 B1 EP0081210 B1 EP 0081210B1 EP 82111178 A EP82111178 A EP 82111178A EP 82111178 A EP82111178 A EP 82111178A EP 0081210 B1 EP0081210 B1 EP 0081210B1
Authority
EP
European Patent Office
Prior art keywords
air
protective helmet
chin guard
ventilation
visor
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
Application number
EP82111178A
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German (de)
French (fr)
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EP0081210A3 (en
EP0081210A2 (en
Inventor
Siegfried Ing. Grad. Huber
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to AT82111178T priority Critical patent/ATE39210T1/en
Publication of EP0081210A2 publication Critical patent/EP0081210A2/en
Publication of EP0081210A3 publication Critical patent/EP0081210A3/en
Application granted granted Critical
Publication of EP0081210B1 publication Critical patent/EP0081210B1/en
Expired legal-status Critical Current

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    • 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
    • A42B3/281—Air ducting systems
    • 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
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/24—Visors with means for avoiding fogging or misting

Definitions

  • the invention relates to a protective helmet of the type mentioned in the preamble of claim 1, which emerges from GB-A-1 556 723 (Fig. 5).
  • the protective helmet disclosed in this document has a ventilation opening on the two side areas of its chin guard, from which a ventilation channel leads into the area of the inside of the helmet cap, air flowing into the two ventilation channels due to back pressure via the air outlet openings provided on the inside of the helmet cap the top of the head of the hard hat wearer.
  • a ventilation channel leads into the area of the inside of the helmet cap, air flowing into the two ventilation channels due to back pressure via the air outlet openings provided on the inside of the helmet cap the top of the head of the hard hat wearer.
  • damp, rainy weather however, water can disadvantageously penetrate through the ventilation openings into the ventilation channels and finally reach the helmet interior via the air outlet openings and thus onto the viewing window and onto the head of the protective helmet wearer.
  • the ventilation openings are provided at the bottom edge region of the viewing opening and are slit-shaped, an air gap being formed between the bottom edge region and the outer surface of the facing edge of the viewing opening when the viewing window is closed.
  • air flows through this to the ventilation openings and, via these, into the interior of the helmet.
  • the ventilation openings are at the level of the driver's mouth, the inflowing air flow is also directed towards the driver's eyes, which can lead to tears in the eyes and eye irritation.
  • the ventilation openings are only arranged at the edge area of the viewing opening, fogging of the inside of the viewing window with moisture precipitation cannot be prevented to a sufficient extent by the air stream passing through them into the inside of the helmet.
  • the protective helmet finally known from DE-U-7 837 986 has a flat air guiding part on its chin guard, which extends obliquely into the helmet interior, its free end being in the field of view of the visor. Since the air guiding part has an outline contour corresponding approximately to the mouth and nose area of the helmet wearer, it can at best prevent fogging on the inside of the viewing window due to the air escaping directly to the mouth and nose of the helmet wearer and directed towards the viewing window. However, after this can spread throughout the helmet interior, the air duct part - especially at low outside temperatures - does not completely prevent fogging on the inside of the lens.
  • the object of the invention is therefore to provide a device in a protective helmet of the type mentioned in the preamble of claim 1, by means of which, through a targeted and effective directed towards the inside of the viewing window but deflected by the driver's eyes air exposure to the inside of the viewing window moisture condensation is kept fog-free, the air stream generated here should contain drip-free air even in damp weather. As far as possible, air should also be applied at different vehicle speeds.
  • the air flow continuously introduced into the helmet interior serves mainly to act on the inside of the viewing window, but is also advantageous as fresh air supplied for the well-being of the driver; Furthermore, a pressure equalization to the outside air, especially in the face area of the driver, is achieved by the introduced air flow, whereby the helmet comfort is improved.
  • any water that may penetrate through the ventilation openings and the air passage openings can collect and flow out of this again through a provided water outlet opening leading to the underside of the helmet, so that even in damp weather, the two , ventilation pipes located at the end regions of the air collection chamber (feature of claim 4), drip-free air enters the helmet interior; since the ventilation pipes - which are provided in a simple manner as an air duct and are used in the feeding of the protective helmet (feature of claim 3) - have a large longitudinal extent, atmospheric moisture can condense on their walls, so that the ventilation pipe also contributes to dehumidification.
  • the ventilation openings provided on the chin guard can be completely or partially closed as required by a slide or by a rubber-elastic cover - which can only release the ventilation openings if air is suitably dimensioned (feature of claims 7 and 8). Since the ventilation openings on the chin guard are arranged on a section which, in turn, has a truncated cone-shaped shape that reinforces the action of force, the chin guard is hardly weakened by the ventilation openings (feature of claim 7).
  • the protective helmet 1 shown in FIGS. 1 and 2 has a viewing opening 2 which can be covered by a viewing window 3.
  • This is mounted on the protective helmet 1 via two opposite bearing bolts 3 'together with a chin guard 4 provided with two lateral articulation parts 4 ".
  • the viewing window 3 and the chin guard 4 are articulated together on the bearing pins 3' so that the viewing window 3 can be independent be pivoted up and down by or together with the chin guard 4, while when the chin guard 4 is pivoted up, the visor 3 is inevitably also displaced.
  • the chin guard 4 lying along a parting line a on the lower part of the helmet is provided with a truncated cone-shaped section 4 'on its longitudinal central region.
  • a plurality of ventilation openings 5 lying side by side and horizontally extending are arranged, which open into an air collecting chamber 6, which is formed by a thin rubber-elastic wall 7 that is airtightly placed at a distance b on the inside of the chin guard 4 and runs approximately parallel to this is that si ch extends along the central region of the chin guard 4 and corresponding to its height.
  • a ventilation tube 8 which serves as an air duct, leads away from the top edge thereof, both of which are inserted into the lining 9 of the protective helmet 1, that is to say connected to the latter and connected in each case via an arch 8 ′ to their region in the region of the upper edge of the Visible opening 2 lying pipe end sections 8 ".
  • These are in the vicinity of the viewing pane 3 and are arranged such that in their side view (FIG. 2) they enclose an upwardly open angle of approximately 30 ° to the inside of the viewing pane 3.
  • the section of the ventilation pipes 8 leading away from the air collection chamber 6 and their bend 8 ′ run below or laterally offset from the edges of the viewing opening 2, so that the view through them is not impaired by the ventilation pipes 8.
  • the free ends of the End sections 8 "of the ventilation pipes 8 are laterally offset from the plane of symmetry of the protective helmet 1 and lie approximately at the height of the upper edge of the viewing opening 2.
  • more than two ventilation pipes leading away from the air collection chamber 6 can of course also be required, if necessary 8.
  • a number of additional air passage openings 12 are arranged next to one another in the longitudinal central region of the upper edge area 4' "of the chin guard 4, which lead together with the ventilation openings 5 into the air collection chamber 6.
  • the air passage openings 12, like the ventilation openings 5, are slit-shaped, with a horizontally extending longitudinal axis, as can be seen in FIGS. 2 and 3, the surface of the upper edge region 4 ′ ′′ of the chin guard 4, which has the air passage openings 12 and faces the inside, runs in the same inclined position as the inside of the lens 3 in its closed position, which is shown in solid lines in the two figures. It is thereby achieved that the air passage openings 12 are closed by this when the viewing window 3 is closed - the inside of which lies flat against the facing surface of the chin guard 4.
  • the air flow generated by dynamic pressure penetrates through the ventilation openings 5 while passing through the air collection chamber 6 into the ventilation pipes 8 when the motorcycle is in operation; From its pipe end sections 8 ", the air flow shown schematically in FIG. 2 with the arrows c is directed from above, away from the eyes of the driver, directly onto the inside of the viewing window 3, so that it is largely prevented from misting up with moisture precipitation. If the viewing window 3 is opened a gap e (shown in FIGS.
  • the edge 14, which extends radially from the protective helmet 1 to the neck of the helmet wearer can be extended obliquely downwards.
  • a slide 15' provided with ventilation openings 5 '; these are assigned to the ventilation openings 5 and cooperate with them in such a way that the ventilation openings 5 can be completely or partially closed by the slide 15.
  • a handle 16 is provided on the slide 15 for actuating it.
  • a rubber-elastic cover covering the ventilation openings 5 can also be provided on the inside of the chin guard 4, which has a thickness such that it releases the ventilation openings 5 with appropriate air exposure.
  • the slide 15 or the rubber-elastic cover can be covered by a mesh filter. Any water that may get into the air-collecting chamber 6 can flow off via a water drain opening 17 which is arranged in the region of the lowest point of the air-collecting chamber 6 and leads to the underside of the helmet.

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  • Helmets And Other Head Coverings (AREA)

Abstract

The safety helmet has a viewing opening which can be covered by a visor. Several vent openings and air passage openings are arranged at the chin protector of the safety helmet. Such openings terminate together into an air-collecting chamber provided on the inside of the chin protector. Two ventilating tubes extending to the top edge of the viewing opening lead away from this air-collecting chamber. An air stream produced by a pressure head passes through the vent openings-as well as through the air passage openings if the visor is opened somewhat-into the air-collecting chamber and is conducted by the ventilating tubes onto the inside of the visor, thereby substantially preventing any fogging of the visor by moisture precipitation.

Description

Die Erfindung bezieht sich auf einen Schutzhelm der im Oberbegriff des Patentanspruchs 1 genannten Art, welche aus der GB-A-1 556 723 (Fig. 5) hervorgeht.The invention relates to a protective helmet of the type mentioned in the preamble of claim 1, which emerges from GB-A-1 556 723 (Fig. 5).

Der in dieser Druckschrift offenbarte Schutzhelm hat an den beiden Seitenbereichen seines Kinnschutzes jeweils eine zu dessen Frontseite hin offene Belüftungsöffnung, von der ein Belüftungskanal in den Bereich der Helmkuppeninnenseite führt, wobei durch Staudruck in die beiden Belüftungskanäle einströmende Luft über die an der Helmkuppeninnenseite vorgesehenen Luftaustrittsöffnungen auf die Kopfoberseite des Schutzhelmträgers gelangt. Bei feuchter, regnerischer Witterung kann jedoch nachteiligerweise auch Wasser über die Belüftungsöffnungen in die Belüftungskanale eindringen und schließlich über die Luftaustrittsöffnungen in den Helminnenraum und damit auf die Sichtscheibe sowie auf den Kopf des Schützhelmträgers gelangen.The protective helmet disclosed in this document has a ventilation opening on the two side areas of its chin guard, from which a ventilation channel leads into the area of the inside of the helmet cap, air flowing into the two ventilation channels due to back pressure via the air outlet openings provided on the inside of the helmet cap the top of the head of the hard hat wearer. In damp, rainy weather, however, water can disadvantageously penetrate through the ventilation openings into the ventilation channels and finally reach the helmet interior via the air outlet openings and thus onto the viewing window and onto the head of the protective helmet wearer.

Bei einem ferner aus dem DE-U-7 631 760 hervorgehenden Schutzhelm sind die Belüftungsöffnungen am untenliegenden Randbereich der Sichtöffnung vorgesehen und schlitzförmig ausgebildet, wobei bei geschlossener Sichtscheibe zwischen deren untenliegendem Randbereich und der Außenfläche des zugewandten Randes der Sichtöffnung ein Luftspalt gebildet ist. Durch diesen strömt beim Fahrbetrieb des Motorrads infolge des hierbei entstehenden Staudrucks Luft zu den Belüftungsöffnungen und über diese ins Helminnere ein. Die Belüftungsöffnungen liegen zwar in Höhe des Mundes des Fahrers, jedoch wird der einströmende Luftstrom auch zu dessen Augen hin geleitet, was zum Tränen der Augen und zu Augenreizungen führen kann. Da ferner die Belüftungsöffnungen lediglich am Randbereich der Sichtöffnung angeordnet sind, kann durch den über sie ins Helminnere gelangenden Luftstrom das Beschlagen der Innenseite der Sichtscheibe mit Feuchtigkeitsniederschlag nicht in ausreichendem Maße verhindert werden.In a protective helmet also emerging from DE-U-7 631 760, the ventilation openings are provided at the bottom edge region of the viewing opening and are slit-shaped, an air gap being formed between the bottom edge region and the outer surface of the facing edge of the viewing opening when the viewing window is closed. As a result of the resulting dynamic pressure, air flows through this to the ventilation openings and, via these, into the interior of the helmet. Although the ventilation openings are at the level of the driver's mouth, the inflowing air flow is also directed towards the driver's eyes, which can lead to tears in the eyes and eye irritation. Furthermore, since the ventilation openings are only arranged at the edge area of the viewing opening, fogging of the inside of the viewing window with moisture precipitation cannot be prevented to a sufficient extent by the air stream passing through them into the inside of the helmet.

Der schließlich aus dem DE-U-7 837 986 bekannte Schutzhelm hat an seinem Kinnschutz ein flächiges Luftführungsteil, das sich schräg in den Helminnenraum erstreckt, wobei sein freies Ende im Sichtfeld der Sichtscheibe liegt. Da das Luftführungsteil eine etwa der Mund- und Nasenpartie des Helmträgers entsprechende Umrißkontur aufweist, kann es allenfalls das Beschlagen der Sichtscheiben innenseite durch die unmittelbar dem Mund und der Nase des Helmträgers entweichende, zur Sichtscheibe hin gerichtete Luft verhindern. Nachdem sich diese jedoch im ganzen Helminnenraum ausbreiten kann, wird durch das Luftführungsteil - insbesondere bei tiefen Außentemperaturen - ein Beschlagen der Sichtscheibeninnenseite nicht vollkommen verhindert.The protective helmet finally known from DE-U-7 837 986 has a flat air guiding part on its chin guard, which extends obliquely into the helmet interior, its free end being in the field of view of the visor. Since the air guiding part has an outline contour corresponding approximately to the mouth and nose area of the helmet wearer, it can at best prevent fogging on the inside of the viewing window due to the air escaping directly to the mouth and nose of the helmet wearer and directed towards the viewing window. However, after this can spread throughout the helmet interior, the air duct part - especially at low outside temperatures - does not completely prevent fogging on the inside of the lens.

Aufgabe der Erfindung ist es daher, bei einem Schutzhelm der im Oberbegriff des Patentanspruchs 1 genannten Art eine Einrichtung zu schaffen, mittels der durch eine gezielt und wirkungsvoll auf die Innenseite der Sichtscheibe hin gerichtete dabei jedoch von den Augen des Fahrers abgelenkte Luftbeaufschlagung die Innenseite der Sichtscheibe von Feuchtigkeitsniederschlag beschlagfrei gehalten wird, wobei der hierbei erzeugte Luftstrum selbst bei feuchter Witterung eine tropfenfreie Luft enthalten soll. Dabei soll möglichst eine Luftbeaufschlagung auch bei unterschiedlichen Fahrzeuggeschwindigkeiten erfolgen.The object of the invention is therefore to provide a device in a protective helmet of the type mentioned in the preamble of claim 1, by means of which, through a targeted and effective directed towards the inside of the viewing window but deflected by the driver's eyes air exposure to the inside of the viewing window moisture condensation is kept fog-free, the air stream generated here should contain drip-free air even in damp weather. As far as possible, air should also be applied at different vehicle speeds.

Zur Lösung der Aufgabe sind die im kennzeichnenden Teil des Patentanspruchs 1 angegebenen Merkmale vorgesehen.To achieve the object, the features specified in the characterizing part of claim 1 are provided.

Durch die erfindungsgemäß vorgesehene Luftsammelkammer kann sich in dieser ein über die Belüftungsöffnung(en) eindringendes Wasser ansammeln und durch eine an ihrer Unterseite vorgesehene Wasserablauföffnung auch wieder abfließen, so daß selbst bei feuchter Witterung über den Luftführungskanal vorteilhafterweise eine tropfenfreie Luft in den Helminnenraum gelangt.Through the air collecting chamber provided according to the invention, water penetrating through the ventilation opening (s) can accumulate in it and flow out again through a water drain opening provided on its underside, so that even in wet weather, drip-free air advantageously enters the helmet interior through the air duct.

Da der von der Luftsammelkammer weg führende Belüftungskanal zum oberen Bereich der Sichtscheibe geführt ist, wird ein beim Fahrbetrieb eines Motorrads die Belüftungsöffnungen passierender, durch bloßen Staudruck erzeugter Luftstrom schräg von oben direkt auf die Innenseite der Sichtscheibe hin gerichtet, wodurch nicht nur ein Beschlagen der Sichtscheibe mit Feuchtigkeitsniederschlag weitgehend verhindert wird, sondern der abwärts, von den Augen des Fahrers wegströmende Luftstrom kann sich auch mit der ebenfalls nach unten gerichteten Atemluft des Fahrers vermischen und wird zusammen mit dieser zugfrei ab einer bestimmten FahrzeugGeschwindigkeit durch den im Kinnbereich des Fahrers herrschenden Unterdruck (der durch den zwischen dem Hals des Helmträgers und dem Schutzhelm vorhandenen Ringspalt beim Fahrbetrieb entsteht) abgesaugt. Der kontinuierlich in den Helminnenraum eingeleitete Luftstrom dient zwar hauptsächlich zur Beaufschlagung der Innenseite der Sichtscheibe, ist aber auch als zugeführte Frischluft für das Wohlbefinden des Fahrers von Vorteil; ferner wird durch den eingeleiteten Luftstrom ein Druckausgleich zur Außenluft speziell im Gesichtsbereich des Fahrers erreicht, wodurch der Helmkomfort verbessert wird.Since the ventilation duct leading away from the air collection chamber leads to the upper area of the visor, an air flow passing through the ventilation openings when the motorcycle is in operation and generated by sheer back pressure is directed obliquely from above directly onto the inside of the visor, thereby not only fogging the visor with moisture precipitation is largely prevented, but the downward airflow flowing away from the driver's eyes can also mix with the driver's breathing air, which is also directed downwards, and together with this is draft-free from a certain vehicle speed due to the negative pressure prevailing in the driver's chin area (the through the annular gap between the neck of the helmet wearer and the protective helmet when driving). The air flow continuously introduced into the helmet interior serves mainly to act on the inside of the viewing window, but is also advantageous as fresh air supplied for the well-being of the driver; Furthermore, a pressure equalization to the outside air, especially in the face area of the driver, is achieved by the introduced air flow, whereby the helmet comfort is improved.

Gemäß dem Merknal des Patentanspruchs 2 sind am obenliegenden Randbereich des Kinnschutzes weitere, in die Luftsammelkammer führende Luftdurchtrittsöffnungen vorgesehen, die bei mit ihrem untenliegenden Randbereich flächig an der zugewandten Oberfläche des Kinnschutzes anliegender Sichtscheibe durch diese verschlossen werden. Durch die am Kinnschutz angeordneten Belüftungsöffnungen und Luftdurchtrittsöffnungen wird erreicht, daß, wenn letztere durch die Sichtscheibe verschlossen sind, beim Fahrbetrieb des Motorrads lediglich durch die Belüftungsöffnungen Luft in den Helminnenraum strömt, was ab einer mittleren Fahrzeuggeschwindigkeit von beispielsweise 50 km/h der Fall ist. Somit kann mit dem erfindungsgemäßen Schutzhelm bei geschlossener Sichtscheibe von der Höchstgeschwindigkeit des Motorrads bis herab zum erwähnten Geschwindigkeitsbereich gefahren werden, wobei vorteilhafterweise der Helminnenraum belüftet wird, ohne daß dabei in diesen Wasser eindringen kann. Wird jedoch die Sichtscheibe manuell einen Spalt geöffnet (wobei über diesen kaum Wasser in den Helminnenraum eindringen kann), so kann sowohl durch die Luftdurchtrittsöffnungen, als auch durch die Belüftungsöffnungen Luft in die Luftsammelkammer und von dieser auf die Innenseite der Sichtscheibe hinströmen. Durch den dabei vorhandenen, gegenüber der geschlossenen Sichtscheibe wesentlich größeren Luftdurchsatz wird bereits bei niedrigerer, vornehmlich bei Stadtfahrten vorhandener Fahrzeuggeschwindigkeit (nämlich beispielsweise ab 20 km/h) Luft in den Helminnenraum eingeleitet. Dabei kann sich in der im Bereich des Kinnschutzes auf dessen Innenseite vorgesehenen Luftsammelkammer ein ggf. über die Belüftungsöffnungen und die Luftdurchtrittsöffnungen eindringendes Wasser ansammeln und aus dieser durch eine vorgesehene, zur Helmunterseite hin führende Wasserabiauföffnung wieder abfließen, so daß selbst bei feuchter Witterung über die beiden, sich an den Endbereichen der Luftsammelkammer befindenden Belüftungsrohre (Merkmal des Patentanspruchs 4) tropfenfreie Luft in den Helminnenraum gelangt; da die Belüftungsrohre - welche in einfacher Weise als Luftführungskanal vorgesehen und in die Fütterung des Schutzhelms eingesetzt sind (Merkmal des Anspruchs 3) - eine große Längserstreckung haben, kann sich an ihren Wandungen Luftfeuchtigkeit niederschlagen, so daß auch die Belüftungsrohr zur Luftentfeuchtung beitragen.According to the feature of claim 2, further air passage openings leading into the air collection chamber are provided on the upper edge area of the chin guard, which are closed by the lower face area lying flat against the facing surface of the chin guard. Through the ventilation openings on the chin guard and air passage openings is achieved in that, when the latter are closed by the viewing window, air flows into the helmet interior only through the ventilation openings when the motorcycle is in operation, which is the case from an average vehicle speed of, for example, 50 km / h. Thus, with the protective helmet according to the invention, with the visor closed, the motorcycle can be driven from the maximum speed down to the mentioned speed range, the helmet interior advantageously being ventilated without water being able to penetrate into it. However, if the viewing window is opened manually (with hardly any water being able to penetrate into the helmet interior), air can flow through the air passage openings as well as through the ventilation openings into the air collection chamber and from there to the inside of the viewing window. Due to the air throughput, which is considerably greater than that of the closed visor, air is introduced into the interior of the helmet even at a lower vehicle speed, especially when driving around town (namely, for example, from 20 km / h). In this case, in the area of the chin guard on the inside of the air collecting chamber, any water that may penetrate through the ventilation openings and the air passage openings can collect and flow out of this again through a provided water outlet opening leading to the underside of the helmet, so that even in damp weather, the two , ventilation pipes located at the end regions of the air collection chamber (feature of claim 4), drip-free air enters the helmet interior; since the ventilation pipes - which are provided in a simple manner as an air duct and are used in the feeding of the protective helmet (feature of claim 3) - have a large longitudinal extent, atmospheric moisture can condense on their walls, so that the ventilation pipe also contributes to dehumidification.

Die am Kinnschutz vorgesehenen Belüftungsöffnungen können durch einen Schieber oder durch eine gummielastische Abdeckung - die bei entsprechend dimensionierter Dicke lediglich durch Luftbeaufschlagung die Belüftungsöffnungen freigeben kann - bedarfsweise ganz oder teilweise verschlossen werden (Merkmal des Anspruchs 7 und 8). Da die Belüftungsöffnungen am Kinnschutz an einem seinerseits in Bezug auf eine Krafteinwirkung verstärkend wirkenden, kegelstumpfförmig einwärts verlaufenden Abschnitt angeordnet sind, wird der Kinnschutz durch die Belüftungsöffnungen kaum geschwächt (Merkmal des Anspruchs 7).The ventilation openings provided on the chin guard can be completely or partially closed as required by a slide or by a rubber-elastic cover - which can only release the ventilation openings if air is suitably dimensioned (feature of claims 7 and 8). Since the ventilation openings on the chin guard are arranged on a section which, in turn, has a truncated cone-shaped shape that reinforces the action of force, the chin guard is hardly weakened by the ventilation openings (feature of claim 7).

Durch Verengung des Durchflußquerschnitts der freien Enden der Belüftungsrohre - was auch durch eine Einsatzdüse erreicht werden kann - läßt sich eine Geschwindigkeitserhöhung der ausströmenden Luft, sowie eine Richtungsstabilität des Luftstroms erreichen (Merkmal des Anspruchs 5)By narrowing the flow cross-section of the free ends of the ventilation pipes - which can also be achieved by an insert nozzle - an increase in the speed of the outflowing air and a directional stability of the air flow can be achieved (feature of claim 5)

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden erläutert. Es zeigt:

  • Fig. 1 einen Schutzhelm in Vorderansicht
  • Fig. 2 eine Seitenansicht zur Fig. 1
  • Fig. 3 eine Ausschnittvergrößerung aus Fig. 2 mit dem obenliegenden Rand des Kinnschutzes.
An embodiment of the invention is shown in the drawing and is explained in the following. It shows:
  • Fig. 1 shows a protective helmet in front view
  • FIG. 2 shows a side view of FIG. 1
  • Fig. 3 is an enlarged detail of Fig. 2 with the top edge of the chin guard.

Der in den Fig. 1 und 2 dargestellte Schutzhelm 1 hat eine Sichtöffnung 2, welche von einer Sichtscheibe 3 überdeckbar ist. Diese ist am Schutzhelm 1 über zwei gegenüberliegende Lagerbolzen 3' samt einem mit zwei seitlichen Anlenkteilen 4" versehenen Kinnschutz 4 hoch-und niederschwenkbar gelagert. Da die Sichtscheibe 3 und der Kinnschutz 4 gemeinsam an den Lagerbolzen 3' angelenkt sind, kann die Sichtscheibe 3 unabhängig vom oder zusammen mit dem Kinnschutz 4 hoch- und niedergeschwenkt werden, während beim Hochschwenken des Kinnschutzes 4 zwangsläufig auch die Sichtscheibe 3 mit verlagert wird. Der längs einer Trennfuge a am Helmunterteil anliegende Kinnschutz 4 ist an seinem Längsmittelbereich mit einem kegelstumpförmig einwärts verlaufenden Abschnitt 4' versehen, an dem mehrere nebeneinanderliegende, schlitzförmig sich waagrecht erstreckende Belüftungsöffnungen 5 angeordnet sind. Diese münden in eine Luftsammelkammer 6, welche durch eine dünne gummielastische, in einem Abstand b auf die Innenseite des Kinnschutzes 4 luftdicht aufgesetzte und etwa parallel zu dieser verlaufende Wand 7 gebildet ist, die sich längs dem Mittelbereich des Kinnschutzes 4 und entsprechend dessen Höhe erstreckt. Von den beiden Endbereichen der Luftsammelkammer 6 führt an deren obenliegendem Rand jeweils ein als Luftführungskanal dienendes Belüftungsrohr 8 weg, die beide in die Fütterung 9 des Schutzhelmes 1 eingesetzt, also mit dieser verbunden und jeweils über einen Bogen 8' zu ihren im Bereich der Oberkante der Sichtöffnung 2 liegenden Rohrendabschnitten 8" geführt sind. Diese liegen in der Nähe der Sichtscheibe 3 und sind so angeordnet, daß sie in deren Seitenansicht (Fig. 2) zur Innenseite der Sichtscheibe 3 einen nach oben offenen Winkel von etwa 30° einschließen.The protective helmet 1 shown in FIGS. 1 and 2 has a viewing opening 2 which can be covered by a viewing window 3. This is mounted on the protective helmet 1 via two opposite bearing bolts 3 'together with a chin guard 4 provided with two lateral articulation parts 4 ". The viewing window 3 and the chin guard 4 are articulated together on the bearing pins 3' so that the viewing window 3 can be independent be pivoted up and down by or together with the chin guard 4, while when the chin guard 4 is pivoted up, the visor 3 is inevitably also displaced. The chin guard 4 lying along a parting line a on the lower part of the helmet is provided with a truncated cone-shaped section 4 'on its longitudinal central region. are provided, on which a plurality of ventilation openings 5 lying side by side and horizontally extending are arranged, which open into an air collecting chamber 6, which is formed by a thin rubber-elastic wall 7 that is airtightly placed at a distance b on the inside of the chin guard 4 and runs approximately parallel to this is that si ch extends along the central region of the chin guard 4 and corresponding to its height. From the two end regions of the air-collecting chamber 6, a ventilation tube 8, which serves as an air duct, leads away from the top edge thereof, both of which are inserted into the lining 9 of the protective helmet 1, that is to say connected to the latter and connected in each case via an arch 8 ′ to their region in the region of the upper edge of the Visible opening 2 lying pipe end sections 8 ". These are in the vicinity of the viewing pane 3 and are arranged such that in their side view (FIG. 2) they enclose an upwardly open angle of approximately 30 ° to the inside of the viewing pane 3.

Wie in Fig. 1 ersichtlich, verläuft der von der Luftsammelkammer 6 wegführende Abschnitt der Belüftungsrohre 8, sowie deren Bogen 8' unterhalb bzw. seitlich versetzt von den Rändern der Sichtöffnung 2, so daß der Durchblick durch diese nicht durch die Belüftungsrohre 8 beeinträchtigt wird. Die freien Enden der Endabschnitte 8" der Belüftungsrohre 8 sind seitlich versetzt von der Symmetrieebene des Schutzhelms 1 angeordnet und liegen etwa in Höhe der Oberkante der Sichtöffnung 2. Zur Erreichung einer optimalen Luftbeaufschlagung der Innenseite der Sichtscheibe 3 können natürlich bedarfsweise auch mehr als zwei von der Luftsammelkammer 6 wegführende Belüftungsrohre 8 vorgesehen werden. Zur Geschwindigkeitserhöhung der aus den Belüftungsrohren 8 ausströmenden Luft haben deren freie Enden einen verengten Durchflußquerschnitt, der durch Zusammendrücken des Rohrquerschnitts oder durch eine in die Rohrendabschnitte 8" eingesetzte Düse geschaffen werden kann. Nachdem der Kinnschutz 4 an Schutzhelm 1 hoch- und niederschwenkbar gelagert ist, müssen auch die Belüftungsrohre 8 im Bereich der Trennfuge a geteilt sein, d. h. ihre unteren, im Kinnschutz 4 angeordneten Abschnitte sind mit diesem verschwenkbar, während ihre obenliegenden Abschnitte sich fest in der Fütterung 9 befinden. Zur Abdichtung der somit an der Trennfuge a gebildeten, einander zugewandten Rohrenden der Belüftungsrohre 8, also bei herabgeschwenktem Kinnschutz 4, wie in den Fig. 1 und 2 dargestellt, sind an den Rohrenden jeweils miteinander zusammenwirkende Dichtmuffen 10 und 11 vorgesehen.As can be seen in FIG. 1, the section of the ventilation pipes 8 leading away from the air collection chamber 6 and their bend 8 ′ run below or laterally offset from the edges of the viewing opening 2, so that the view through them is not impaired by the ventilation pipes 8. The free ends of the End sections 8 "of the ventilation pipes 8 are laterally offset from the plane of symmetry of the protective helmet 1 and lie approximately at the height of the upper edge of the viewing opening 2. To achieve optimum air exposure to the inside of the viewing window 3, more than two ventilation pipes leading away from the air collection chamber 6 can of course also be required, if necessary 8. To increase the speed of the air flowing out of the ventilation pipes 8, their free ends have a narrowed flow cross section which can be created by compressing the pipe cross section or by a nozzle inserted into the pipe end sections 8 ″. After the chin guard 4 is mounted on the protective helmet 1 so that it can be swiveled up and down, the ventilation pipes 8 must also be divided in the region of the parting line a, ie their lower sections arranged in the chin guard 4 can be swiveled with the latter, while their upper sections are firmly attached to the feeding 9 are located. To seal the mutually facing pipe ends of the ventilation pipes 8 thus formed at the parting line a, that is to say when the chin guard 4 is pivoted down, as shown in FIGS. 1 and 2, mutually cooperating sealing sleeves 10 and 11 are provided on the pipe ends.

Neben den am kegelstumpfförmig einwärts verlaufenden Abschnitt 4' des Kinnschutzes 4 vorgesehenen Belüftungsöffnungen 5 sind im Längsmittelbereich des obenliegenden Randbereichs 4'" des Kinnschutzes 4 eine Anzahl von zusätzlichen Luftdurchtrittsöffnungen 12 nebeneinanderliegend angeordnet, die zusammen mit den Belüftungsöffnungen 5 in die Luftsammelkammer 6 führen. Die Luftdurchtrittsöffnungen 12 sind ebenso wie die Belüftungsöffnungen 5 schlitzförmig, bei waagrecht verlaufender Längsachse, ausgebildet. Wie in Fig. 2 und 3 ersichtlich, verläuft die der Innenseite der Sichtscheibe 3 zugewandte Oberfläche des die Luftdurchtrittöffnungen 12 aufweisenden obenliegenden Randbereichs 4'" des Kinnschutzes 4 in gleicher Schräglage wie die Innenseite der Sichtscheibe 3 in deren Schließstellung, welche in den beiden Figuren mit ausgezogenen Linien dargestellt ist. Hierdurch ist erreicht, daß die Luftdurchtrittsöffnungen 12 bei geschlossener Sichtscheibe 3 - wobei deren Innenseite flächig an der zugewandten Oberfläche des Kinnschutzes 4 anliegt - durch diese verschlossen werden.In addition to the ventilation openings 5 provided on the truncated cone-shaped section 4 'of the chin guard 4, a number of additional air passage openings 12 are arranged next to one another in the longitudinal central region of the upper edge area 4' "of the chin guard 4, which lead together with the ventilation openings 5 into the air collection chamber 6. The air passage openings 12, like the ventilation openings 5, are slit-shaped, with a horizontally extending longitudinal axis, as can be seen in FIGS. 2 and 3, the surface of the upper edge region 4 ′ ″ of the chin guard 4, which has the air passage openings 12 and faces the inside, runs in the same inclined position as the inside of the lens 3 in its closed position, which is shown in solid lines in the two figures. It is thereby achieved that the air passage openings 12 are closed by this when the viewing window 3 is closed - the inside of which lies flat against the facing surface of the chin guard 4.

Bei geschlossener Sichtscheibe 3 des Schutzhelms 1 dringt beim Fahrbetrieb des Motorrads der dabei durch Staudruck erzeugte Luftstrom durch die Belüftungsöffnungen 5 unter Passage der Luftsammelkammer 6 in die Belüftungsrohre 8 ein; von deren Rohrendabschnitten 8" wird der in Fig. 2 mit den Pfeilen c schematisch dargestellt Luftstrom von oben, von den Augen des Fahrers weg, direkt auf die Innenseite der Sichtscheibe 3 hin gerichtet, so daß hierdurch deren Beschlagen mit Feuchtigkeitsniederschlag größtenteils verhindert wird. Wenn die Sichtscheibe 3 einen Spalt e geöffnet wird (in den Fig. 2 und 3 mit gestrichelten Linien dargestellt), strömt sowohl durch die Belüftungsöffnungen 5 als auch durch die Luftdurchtrittsöffnungen 12 Luft in die Luftsammelkammer 6 ein - also ein vergleichsweise größerer Luftdurchsatz -, wobei die jeweiligen Geschwindigkeitsbereiche des Motorrads hierfür eingangs erwähnt sind. Da beim Fahrbetrieb des Motorrads im Kinnbereich des Fahrers ein Unterdruck herrscht, wird durch diesen die in den Helminnenraum einströmende Luft über den zwischen dem Hals des Helmträgers und dem Schutzhelm 1 vorhandenen Ringspalt zusammen mit der ebenfalls nach unten, also in gleicher Richtung strömenden Atemluft des Fahrers abgesaugt, wie in Fig. 2 mit den Pfeilen d schematisch veranschaulicht. Zur Verbesserung der Luftabsaugung kann der sich radial vom Schutzhelm 1 zum Hals des Helmträgers hin erstreckende Rand 14 schräg nach unten ausgestellt werden.With the visor 3 of the protective helmet 1 closed, the air flow generated by dynamic pressure penetrates through the ventilation openings 5 while passing through the air collection chamber 6 into the ventilation pipes 8 when the motorcycle is in operation; From its pipe end sections 8 ", the air flow shown schematically in FIG. 2 with the arrows c is directed from above, away from the eyes of the driver, directly onto the inside of the viewing window 3, so that it is largely prevented from misting up with moisture precipitation. If the viewing window 3 is opened a gap e (shown in FIGS. 2 and 3 with dashed lines), air flows both through the ventilation openings 5 and through the air passage openings 12 into the air collection chamber 6 - that is to say a comparatively larger air throughput, the Since there is a negative pressure in the chin area of the driver when the motorcycle is being driven, the air flowing into the interior of the helmet is passed through the annular gap between the neck of the helmet wearer and the protective helmet 1 together with that also downwards , that is, breathing air flowing in the same direction sucked by the driver, as schematically illustrated in Fig. 2 with the arrows d. To improve the air extraction, the edge 14, which extends radially from the protective helmet 1 to the neck of the helmet wearer, can be extended obliquely downwards.

Längs den Belüftungsöffnungen 5 ist auf der Innenseite des kegelstumpfförmigen Abschnitts 4' des Kinnschutzes 4 ein mit Belüftungsöffnungen 5' versehener Schieber 15 angebracht; diese sind den Belüftungsöffnungen 5 zugeordnet und wirken mit diesen so zusammen, daß die Belüftungsöffnungen 5 ganz oder teilweise durch den Schieber 15 verschließbar sind. Zur Betätigung des Schiebers 15 ist an diesem ein Handgriff 16 vorgesehen. Anstelle des Schiebers 15 kann auf der Innenseite des Kinnschutzes 4 auch eine die Belüftungsöffnungen 5 überdeckende, gummielastische Abdeckung vorgesehen werden, die eine solche Dicke hat, daß sie die Belüftungsöffnungen 5 bei entsprechender Luftbeaufschlagung freigibt. Um zu vermeiden, daß in die Luftsammelkammer 6 Fliegen oder dgl. gelangt, kann der Schieber 15 bzw. die gummielastische Abdeckung von einem Maschenfilter überdeckt werden. Über eine im Bereich der tiefstliegenden Stelle der Luftsammelkammer 6 angeordnete, zur Helmunterseite hin führende Wasserablauföffnung 17 kann ein ggf. in die Luftsammelkammer 6 gelangendes Wasser abfließen.Along the ventilation openings 5, on the inside of the frustoconical section 4 'of the chin guard 4, there is a slide 15' provided with ventilation openings 5 '; these are assigned to the ventilation openings 5 and cooperate with them in such a way that the ventilation openings 5 can be completely or partially closed by the slide 15. A handle 16 is provided on the slide 15 for actuating it. Instead of the slider 15, a rubber-elastic cover covering the ventilation openings 5 can also be provided on the inside of the chin guard 4, which has a thickness such that it releases the ventilation openings 5 with appropriate air exposure. To prevent flies or the like from entering the air collecting chamber 6, the slide 15 or the rubber-elastic cover can be covered by a mesh filter. Any water that may get into the air-collecting chamber 6 can flow off via a water drain opening 17 which is arranged in the region of the lowest point of the air-collecting chamber 6 and leads to the underside of the helmet.

Claims (10)

1. A protective helmet (1), especially for users of motor vehicles, with a visibility opening (29) which is coverable by a visor (3) and with at least one ventilation opening (5) lying in the region of the chin guard (4), with which opening at least one air conduction channel, extending into the upper interior region of the helmet, communicates, and via which channel a current of air can be introduced into the interior of the helmet, characterised in that the ventilation opening(s) (5) open into an air collection chamber (6) which is formed on the inner side of the chin guard (4) with the direction of oncoming flow of the air conduction channel being guided obliquely from above and at an acute angle to the inner side of the visor (3).
2. A protective helmet according to claim 1, characterised in that, at the edge region (4"') of the chin guard (4) and lying at the top, additional air passage openings (12) are provided which lead into the air collection chamber (6) and which, with the visor (3) resting with its edge region, lying at the bottom, flatly against the surface of the chin guard which faces it, are closed thereby.
3. A protective helmet according to claim 1, characterised in that the air conduction channel is formed by a ventilation pipe (8) which is inserted into the lining (9) of the protective helmet (1).
4. A protective helmet according to claim 1 or 3, characterised in that the air collection chamber (6) extends along the central region of the chin guard (4) and corresponds to its height, and is formed by a rubber elastic wall (7) disposed in an air-tight manner at a distance on its inner side and running approximately parallel thereto, in which in each case a ventilation pipe (8) leads away from the end regions of the air collection chamber, which pipes are in each case guided in a curve (8') to the pipe end sections (8") which, in side view, form an angle of approximately 30 degrees with the inner side of the visor (3).
5. A protective helmet according to claim 3 or 4, characterised in that the free ends of the ventilation pipes (8) have a narrowing throughflow cross-section.
6. A protective helmet with a removable chin guard, or with a chin guard which is able to be swivelled with the visor, according to claim 3 or 4, characterised in that the ventilation pipes (8) in each case have a separation point, in which in each case sealing sockets (10, 11), cooperating with each other, are associated with the pipe ends which face each other.
7. A protective helmet according to claim 1, characterised in that, on a section (4') which is constructed on the chin guard (4) and runs inwards in the shape of a truncated cone, a number of ventilation openings (5) is arranged, and these are able to be closed, completely or partially, by a slider (15).
8. A protective helmet according to claim 1 or 4, characterised in that the ventilation openings (5) are able to be closed, completely or partially, by a rubber elastic cover which is mounted on the inner side of the chin guard (4), and/or are covered by a mesh filter.
9. A protective helmet according to claim 1, characterised in that, in the region of the lowest point of the air collection chamber (6), a water outlet opening (17) is provided, leading to the underside of the helmet.
10. A protective helmet according to claim 1, characterised in that the edge (14), lying at the bottom and extending radially from the protective helmet (1) towards the wearer of the helmet, is disposed obliquely downwards.
EP82111178A 1981-12-09 1982-12-02 Safety helmet, especially for the users of motor vehicles Expired EP0081210B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82111178T ATE39210T1 (en) 1981-12-09 1982-12-02 PROTECTIVE HELMET, PARTICULARLY FOR USERS OF MOTOR VEHICLES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3148725A DE3148725C1 (en) 1981-12-09 1981-12-09 Protective helmet, in particular, for users of motor vehicles
DE3148725 1981-12-09

Publications (3)

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EP0081210A2 EP0081210A2 (en) 1983-06-15
EP0081210A3 EP0081210A3 (en) 1985-04-10
EP0081210B1 true EP0081210B1 (en) 1988-12-14

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Family Applications (1)

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EP82111178A Expired EP0081210B1 (en) 1981-12-09 1982-12-02 Safety helmet, especially for the users of motor vehicles

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US (1) US4514864A (en)
EP (1) EP0081210B1 (en)
AT (1) ATE39210T1 (en)
DE (2) DE3148725C1 (en)

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Also Published As

Publication number Publication date
EP0081210A3 (en) 1985-04-10
ATE39210T1 (en) 1988-12-15
DE3148725C1 (en) 1983-03-31
US4514864A (en) 1985-05-07
DE3279280D1 (en) 1989-01-19
EP0081210A2 (en) 1983-06-15

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