EP0572760B1 - Visier für Schutzhelme - Google Patents

Visier für Schutzhelme Download PDF

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Publication number
EP0572760B1
EP0572760B1 EP92850130A EP92850130A EP0572760B1 EP 0572760 B1 EP0572760 B1 EP 0572760B1 EP 92850130 A EP92850130 A EP 92850130A EP 92850130 A EP92850130 A EP 92850130A EP 0572760 B1 EP0572760 B1 EP 0572760B1
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EP
European Patent Office
Prior art keywords
visor
helmet
hinge
locking means
shield
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
EP92850130A
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English (en)
French (fr)
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EP0572760A1 (de
Inventor
Leif Palmaer
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3M Svenska AB
Original Assignee
Peltor AB
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Filing date
Publication date
Application filed by Peltor AB filed Critical Peltor AB
Priority to AT92850130T priority Critical patent/ATE171600T1/de
Priority to DE69227184T priority patent/DE69227184T2/de
Priority to EP92850130A priority patent/EP0572760B1/de
Publication of EP0572760A1 publication Critical patent/EP0572760A1/de
Application granted granted Critical
Publication of EP0572760B1 publication Critical patent/EP0572760B1/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
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/225—Visors with full face protection, e.g. for industrial safety applications

Definitions

  • the invention relates to a visor for safety helmets, particularily for safety helmets for persons working in an environment rich in light, airborne, medium-size airborne particles, comprising a shield assembly including a substantially transparent shield mounted in a frame, and further comprising attaching means for attaching the visor to a safety helmet.
  • Visors of the above-mentioned kind are preferentially used in situations where light particles of medium size, that is, particles with a diameter of between about 0,3 to about 3,0 mm, constitute a major fraction of total airborne material.
  • light particles of medium size that is, particles with a diameter of between about 0,3 to about 3,0 mm
  • airborne denotes particles that are being kept airborne for a while, especially when supported by moderate air movements or turbulence.
  • Such particles will generally have a specific weight or, if of a porous or similar nature, an apparent specific weight of less than 1.
  • Saw dust is a good example for a material rich in such particles.
  • Visors protecting the eyes against particles of the aforementioned kind comprise a substantially transparent shield made of a close-meshed net arranged within a frame. Under most working conditions, the meshes of the net do not substantially impede the view of the bearer. This, however, does not hold true for certain conditions, for example conditions with lighting by a light source placed above and slightly in front of the bearer. Under such conditions, light reflection by the net becomes a nuisance that may be aggravated by other factors, such as rainy weather or humid conditions in general, light reflection by a wet shield net being substantially larger than by a dry one. Humidity also promotes adherence of particles to the net and, thus, further reduces visibility.
  • WO-A-86/03656 discloses a hinge device for a retractable face guard on a safety helmet.
  • an attachement associated with the guard as well as a holder removably mounted on the helmet.
  • the holder is mounted on the helmet via an attachment member.
  • the attachment has a substantially flat guide portion, accomodated in guide means in the holder.
  • the attachment is pivotable in the holder around a pin, which has its axis at right angles to the guide portion.
  • a latching means enables latching the attachment in different angular positions in relation to the holder. Included in the latching means are edge surfaces on the attachment and a latch member disposed in the holder for spring biassed coaction with the edge surfaces.
  • the latch member is here a spring plate fixed at one end in the holder, with its free end directed forwards.
  • the object of the present invention is to provide an improved visor for safety helmets of the aforementioned kind that substantially reduces light-reflection problems.
  • a visor for safety helmets of the aforementioned kind which visor comprises a shield assembly removably attached to the shield holder, a frontal bill portion projecting generally forwardly from the interconnecting portion and a rear bill portion projecting generally backwordly from the interconnecting portion, and wherein said supporting arms each is joined to and extending from either end of the interconnecting portion, wherein said anchoring elements are removably fixed to the respective supporting arm and the respective side wall of the helmet, wherein the hinge and locking means comprise a wedge-shaped bearing tap portion arranged at an essentially flat lateral surface of the respective supporting arm near the free end of the supporting arm and being fitted into a bearing ring portion having a triangular opening with rounded corners adapted to receive and hold said bearing tap portion, said bearing ring portion forming part of the anchoring element.
  • the supporting arms prefferably be arranged in planes essentially perpendicular to the plane defined by the rims of the front bill portion and the rear bill portion, respectively, the planes of the essentially flat front bill portion and rear bill portion being tilted in relation to each other, and the shield having essentially the configuration of a portion of a cylinder mantle, the axis of the corresponding cylinder being arranged about perpendicular to the plane defined by the rims of the front bill portion and the rear bill portion.
  • interconnecting portion comprises gripping means, particularly gripping means of the snap-in closure type, for gripping and holding the top portion of the shield frame.
  • the rim of the rear bill portion of the holder fits the surface of the helmet both in the protecting and the non-protecting position.
  • the means for attaching the visor to the helmet to comprise tongue means of the respective anchoring element for insertion into horizontal slots arranged at the respective lateral wall of the helmet, the tongue means preferably being provided with the male part of snap-in locking means cooperating with a corresponding female part arranged on the inside of the helmet.
  • the bearing tap portion includes a circumferential groove for receiving and holding the bearing ring portion.
  • the tap portion has about the form of two hemicircles of different diameter arranged at a distance from each other and symmetrical in respect to a line connecting their centers and with their greatest distance at their intersections with this central line and connected by side lines tangentially joining the respective hemicircle.
  • the shield assembly consists of a mesh of metallic wire or polymer material in a frame.
  • the shield assembly prefferably includes a curved sheet of translucent plastic material.
  • this object is met by a hinge and locking means for visors for safety helmets of the aforementioned kind, wherein the shield assembly is removably attached to the supporting arms and the anchoring elements are removably fixed to the respective supporting arm and the respective side wall of the helmet, wherein the hinge and locking means also comprises a wedge-shaped bearing tap portion arranged at an essentially flat lateral surface of the respective supporting arm near the free end of the supporting arm, and being fitted into a bearing ring portion having an opening, adapted to receive and hold said bearing tap portion, said bearing ring portion forming part of the anchoring element.
  • the hinge and locking means also comprises tongue means of the respective anchoring element for insertion into horizontal slots, arranged at the respective lateral wall of the helmet, the tongue means being provided with the male part of snap-in locking means cooperating with a corresponding female part arranged on the helmet.
  • the bearing tap portion includes a circumferential groove and a flange for receiving and holding the bearing ring portion.
  • the tap portion has about the form of two hemicircles of different diameter arranged at a distance from each other and symmetrical in respect to a line connecting their centers and with their greatest distance at their intersections with this central line and connected by side lines tangentially joining the respective hemicircle.
  • the width of the groove is slightly larger than the thickness of the bearing ring portion.
  • the opening of the bearing ring portion is defined by a longer sidewall and two shorter sidewalls of equal length, wherein the opening is triangular with corners and wherein the smaller hemicircle is situated in the corner defined by the sidewalls and the greater hemicircle is situated in the corner defined by the sidewalls when in one locking position and wherein the smaller hemicircle is situated in the corner defined by the sidewalls and the greater hemicircle is situated in the corner defined by the sidewalls when in the other locking position.
  • a visor for a safety helmet 1 comprises a shield assembly 2 consisting of a shield 3 made of a net of metallic wire with a mesh width (diagonal) of about 1,5 mm embedded in a quadrilateral plastic frame 4 surrounding the net shield 3 and having rounded lower corners, the shield 3 together with the frame 4 having a spatial configuration approximating that of a portion of a cylinder mantle, and a shield holder 5 to which the shield is removably mounted.
  • the shield holder 5 is made of a hard but resilient polymer material and is rougly half-moon shaped with an outer rim 51 and an inner rim 52 extending between tips 53 and 54, and, except for what is said below, has a predominantly planar extension which is best approximated by the plane P (Fig. 2) defined by rims 51 and 52.
  • the shield holder 5 two parallel flanges 56, 57, essentially perpendicular to the plane defined by the rear bill portion of the holder 5 and with a narrow grove between them, extend between the tips 53 and 54.
  • the flanges 56, 57 divide the shield holder into a larger frontal bill portion 20 and the smaller rear bill portion 21 and, together with the portion of the holder extending in-between them, define a interconnecting portion 22 joined to the bill portions 20, 21.
  • a mirror plane perpendicular to line A - A in Fig. 1 divides the visor into two symmetric halves.
  • the two parallel and resilient flanges 56, 57 are arranged for gripping contact with the upper frame rim portion 24 of the shield assembly 2.
  • the upper rim 24 fits into the groove between the flanges 56 and 57.
  • the rim 24 is locked in place by the locking cooperation of the flanges 56, 57 and the rim 24 profile, as evident from Fig. 3.
  • the respective upper surfaces of the inner bill portion 21, including that of the interconnecting portion 22, and the outer bill portion 20 are slightly tilted in respect of each other, the tilting angle ⁇ being in the order of 5 to 15°; said surfaces meet at a ridge 28 at about center of the shield holder 5.
  • the holder 5 At its end regions 62, 63 extending for a distance of about 3 cm from the tips 53, 54 the holder 5 is provided with supporting arms 60, 61 extending backwards from the holder 5 and rigidly attached, preferably by moulding the holder 5 and the arms 60, 61 in one single piece, to it at said end regions 62, 63 where the holder 5 has fortified portions B and C, respectively (indicated by point-dashed lines in Fig. 1), the supporting arms 60, 61 with their respective exterior lateral surfaces tangentially joining the outer rim 51.
  • the supporting arms 60, 61 are essentially straight and of moderate width (a few mm) (Fig. 1). For stability reasons their extension (Figs.
  • the supporting arms 60, 61 are provided with hinge and locking means (Figs. 5 - 8) arranged for pivoting movement of the visor between a protecting position (G, Fig. 4) and a non-protecting position (H, Fig. 4), and for temporarily locking the visor in the respective position.
  • FIG. 5 to 8 Only the hinge and locking means of the right supporting arm 61 is shown in more detail in Figs. 5 to 8. It consists of a bearing tap portion 75 forming part of the free-end portion the supporting arm 61 and of a bearing ring portion 77, 80, 81 forming part of an anchoring element 71.
  • the opening 76 of the bearing ring portion 77, 80, 81 is about triangular in form and defined by a longer sidewall 77 and two shorter sidewalls 80, 81 of equal length. The corners formed by the longer sidewall 77 and the shorter sidewalls 80, 81 are well rounded.
  • the wedge-formed bearing tap 75 portion is joined to the flat outer surface at the end region of supporting arm 60 from which it protrudes. It has a flat top surface parallel to the flat surface of supporting arm 60 from which it raises by a few mm.
  • the tap portion 75 When seen in a direction perpendicular to said flat outer surface of the supporting arm 60, the tap portion 75 has about the form of two hemicircles of different diameter arranged at a distance from each other and symmetrical in respect to a line connecting their centers and with their greatest distance at their intersections with this central line and connected by side lines tangentially joining the respective hemicircle.
  • the smaller hemicircle end of the tap portion 75 is arranged close to the free end of the supporting arm 60 and with said center line having an extension parallel to the edges of the supporting arm.
  • the lateral wall of the tap portion 75 is provided with a circumferential groove 79, the inner lateral wall of which coincides with the surface of the supportiong arm portion 60 to which the tap portion 75 is joined.
  • the width of the groove 79 is slightly larger than the thickness of the bearing ring portion 77, 80, 81.
  • the hinge and locking means is assembled by inserting the bearing tap portion 75 in the opening 76 of bearing ring portion 77, 80, 81 and turning the tap portion 75 until it snaps into one of the two stable positions illustrated in Figs. 5 and 7.
  • the hemicurcular (center at point 85) end of the tap portion 75 with the smaller radius will then be fitted into the corner between the shorter sidewalls 80, 81 and the other end of the tap portion 75 will assume a position close to one of the rounded corners (rounded with a radius slightly larger than that of the larger one of the two hemicircles of the tap portion 75) between the shorter sidewalls 80, 81 and the longer sidewall 77, in which position it will be locked.
  • the tap portion 75 By applying an upward lateral force to the supporting arm 60 either directly or indirectly, e.g. by lifting the visor, the tap portion 75 will turn around the center 85 of the smaller circle defining the wedge tip end of the tap portion 75.
  • the locking and hinge means 70 thus can occupy either of the two stable positions shown in Figs. 5.
  • the comparatively flat anchoring element 71 is provided with a rectangular tongue 72 for mounting it in a horizontal slot 73 of a vertical pocket (not shown) arranged in the lower part of the right lateral wall of the helmet 1.
  • the visor can be removably fixed to the helmet.
  • the tongue 72 is adapted to function as the male part and the pocket 74 to function as the female part of the snap-in connection.
  • Supporting arm 62 is provided with corresponding hinge and fixation means not shown, mirroring the arrangement illustrated in Figs. 5 - 7.
  • Fig. 4 the visor holder 5, (the supporting arms 60, 61 having been excluded for the sake of clarity) is shown in positional relation to the on safety helmet 1 on which it is mounted, the helmet 1 having a front bill portion 11 and being borne by a person with the head in a normal, upright position.
  • the inner bill 21 of the visor overlaps the front bill portion 11 of the helmet, thereby preventing airborne particles or light to enter from above between the shield and the face of the bearer. Entrance of water between the bills 11 and 21 can be avoided by arranging a sealing element (not shown) made of, for example, spongy polyurethane rubber, at the underside of bill 21 and parallel to rim 52, thus closing the gap between the bills 11 and 21.
  • a sealing element made of, for example, spongy polyurethane rubber
  • Figure 4 also shows that the outer bill 22 is tilting downwards in the protecting position G.
  • a moderate upward pressure on the shield holder 5 or the shield 2 assembly suffices for moving the visor from the protecting position G to the non-protecting position H and to lock it in the latter, each part of the holder and the shield thereby being displaced along circular paths having their center at point 85.
  • the negative curved shape of the inner rim 52 of the shield holder 5 is made to correspond about to the positive curved shape of the frontal profile of the helmet 1, the hinge means 70, as well as the corresponding hinge means for the left supporting arm 60, being positioned (center of rotation 85 in Fig. 4) for maintaining said fit in the protecting position G and in the non-protecting position H, thereby minimizing the dimensions of the supporting arms 60, 61 necessary to provide a reliable and safe connection of the visor to the helmet 1.

Landscapes

  • Helmets And Other Head Coverings (AREA)
  • Sealing Devices (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Claims (15)

  1. Schirm für Sicherheitshelme, insbesondere für Sicherheitshelme für Personen, die in Umgebungen mit leichten in der Luft enthaltene Partikeln mit einer Teilchengröße zwischen 0,3 und 3,0 mm und einem scheinbaren spezifischen Gewicht von unter 1 arbeiten, umfassend eine im wesentlichen transparente Schildbaugruppe (2), die aus einem in einem Rahmen (4) montierten Schild (3) besteht, und weiter umfassend Befestigungsmittel zur Befestigung des Schirms an einem Sicherheitshelm, wobei der Schirm einen im wesentlichen nicht transparenten Schildhalter (5) umfaßt, an dem die Schildbaugruppe (2) befestigt ist, der genannte Halter (5) einen Verbindungsteil (22) umfaßt, der im wesentlichen den Verlauf eines Teils eines Kreisbandes hat, und zwei Stützarme (60, 61), wobei die genannten Stützarme (60, 61) so angeordnet sind, daß sie abnehmbar mittels eines Scharniers an einem Sicherheitshelm (1) befestigt werden können, der mit einem vorderen Ansatzstück (11) ausgestattet ist, das in einer im wesentlichen horizontalen Ebene verläuft, wobei das Mittel zum Anbringen des Schirms am Helm (1) und das Scharnier Verankerungselemente (71) umfassen, die zwischen dem betreffenden Stützarm (61) und der betreffenden Seitenwand des Helms (1) angeordnet sind, wodurch der Schirm beweglich zwischen einer Schutzposition (G, Fig. 4) und einer ungeschützten Position (H, Fig. 4) angeordnet ist und vorübergehend mit Hilfe eines Verriegelungsmittels in diesen beiden Positionen gehalten werden kann, dadurch gekennzeichnet, daß die genannte Schildbaugruppe (2) abnehmbar an dem genannten Halter (5) befestigt ist, der genannte Halter (5) außerdem ein vorderes Ansatzstück (20) umfaßt, das generell von dem Verbindungsabschnitt (22) nach vorne ragt, und ein hinteres Ansatzstück (21), das von dem Verbindungsteil (22) generell nach hinten ragt, und dadurch, daß die genannten Stützarme (60, 61) jeweils verbunden sind mit dem Verbindungsteil (22) und von beiden Enden des Verbindungsteils (22) abgehen, bei dem die genannten Verankerungselemente (71) abnehmbar an dem jeweiligen Stützarm (61) und der jeweiligen Seitenwand des Helms (1) befestigt sind, bei dem das Scharnier- und Verriegelungsmittel einen keilförmigen Lagerzapfenabschnitt (75) umfaßt, der an einer im wesentlichen flachen Seitenfläche des jeweiligen Stützarms (61) angeordnet ist, nahe dem freien Ende des Stützarms (61) und eingebaut in einen Lagerringabschnitt (77, 80, 81) mit einer dreieckigen Öffnung mit abgerundeten Ecken, die den genannten Lagerzapfenabschnitt (75) aufnehmen und halten können, wobei der genannte Lagerringabschnitt (77, 80, 81) einen Teil des Verankerungselements (71) bildet.
  2. Schirm nach Anspruch 1, dadurch gekennzeichnet, daß die Stützarme (60, 61) in Ebenen angeordnet sind, die im wesentlichen senkrecht zu der durch die Ränder (51, 52) des vorderen Ansatzes (20) bzw. des hinteren Ansatzes (21) definierten Ebene angeordnet sind, wobei die Ebenen des im wesentlichen flachen vorderen Ansatzstückes (20) und des hinteren Ansatzstückes (21) gegeneinander geneigt sind, und die Schildbaugruppe (2) im wesentlichen die Konfiguration eines Teils eines Zylindermantels hat, wobei die Achse des entsprechenden Zylinders in etwa senkrecht zu der Ebene ausgerichtet ist, die von den Rändern (51, 52) des vorderen Ansatzstückes (20) und des hinteren Ansatzstückes (21) definiert wird.
  3. Schirm nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Verbindungsabschnitt (22) Greifmittel (24, 56, 57), speziell Greifmittel vom Typ eines Einschnappverschlusses, umfaßt, zum Greifen und Halten des oberen Abschnitts des Schildrahmens (4).
  4. Schirm nach einem der Ansprüche 1-3, dadurch gekennzeichnet, daß der Rand (52) des hinteren Ansatzstückes (21) des Halters (5) sich der Oberfläche des Helms (1) sowohl in der Schutzstellung (G, Fig. 4) als auch in der Nicht-Schutzstellung (H, Fig. 5) nähert, um eine gute Passung zu erreichen.
  5. Schirm nach Anspruch 4, dadurch gekennzeichnet, daß das Mittel zum Anbringen des Schirms am Helm Zungenmittel (72) des betreffenden Verankerungselements (71) umfaßt, zum Einführen in horizontale Schlitze (73), die an der betreffenden Seitenwand des Helms (1) angeordnet sind, wobei das Zungenmittel (72) mit dem Steckteil der Einschnapp-Verriegelung ausgestattet ist, der mit dem entsprechenden Aufnahmeteil zusammenwirkt, das auf der Innenseite des Helms (1) angeordnet ist.
  6. Schirm nach Anspruch 5, dadurch gekennzeichnet, daß der Lagerzapfenteil (75) eine umlaufende Rille (79) umfaßt, zur Aufnahme und zum Halten des Lagerringabschnitts (77, 80, 81).
  7. Schirm nach Anspruch 6, dadurch gekennzeichnet, daß der Zapfenteil (75) etwa die Form zweier Halbkreise unterschiedlichen Durchmessers hat, die mit einem Abstand zueinander angeordnet sind und, bezogen auf eine Linie, die ihre Mittelpunkte miteinander verbindet, symmetrisch sind, und ihre größte Distanz an ihren Schnittpunkten mit dieser Mittelline haben, und durch Seitenlinien verbunden sind, die den jeweiligen Halbkreis tangential schneiden.
  8. Schirm nach einem jeden vorangehenden Anspruch, dadurch gekennzeichnet, daß er einen Schild (3) umfaßt, der aus einem Geflecht aus Metalldraht oder Polymermaterial in einem Rahmen (4) besteht.
  9. Schirm nach einem jeden vorangehenden Anspruch, dadurch gekennzeichnet, daß er einen Schild (3) umfaßt, der eine gebogene Platte aus transparentem Kunststoff umfaßt.
  10. Scharnier- und Verriegelungsmittel für Schirme für Sicherheitshelme, wobei ein solcher Schirm eine im wesentlichen transparente Schildbaugruppe (2) umfaßt, bestehend aus einem Schild (3), der in einem Rahmen (4) montiert ist, und weiter umfaßt Befestigungsmittel zur Befestigung des Schirms an einem Sicherheitshelm, bei dem das Scharnier- und Verriegelungsmittel zwei Stützarme (60, 61) umfaßt, an denen die Schildbaugruppe (2) befestigt ist, Verankerungselemente (71), die zwischen dem jeweiligen Stützarm (61) und der jeweiligen Seitenwand des Helms (1) angeordnet sind, wodurch der Schirm mit Hilfe des genannten Scharnier- und Verriegelungsmittels zwischen einer Schutzposition (G, Fig. 4) und einer ungeschützten Position (H, Fig. 4) beweglich ist, und vorübergehend in jeder der beiden Positionen gehalten werden kann, dadurch gekennzeichnet, daß die Schildbaugruppe (2) abnehmbar an den Stützarmen (60, 61) befestigt ist, und daß die Verankerungselemente (71) abnehmbar an dem jeweiligen Stützarm (61) und der jeweiligen Seitenwand des Helms (1) befestigt sind, wobei das Scharnier- und Verriegelungsmittel außerdem einen keilförmigen Lagerzapfenabschnitt (75) umfaßt, der an einer im wesentlichen flachen Seitenfläche des jeweiligen Stützarms (61) nahe dem freien Ende des Stützarms (61) angeordnet ist, und in einen Lagerringabschnitt (77, 80, 81) eingebaut ist, mit einer Öffnung (76), die den genannten Lagerzapfenabschnitt (75) aufnehmen und halten kann, wobei der genannte Lagerringabschnitt (77, 80, 81) Teil des Verankerungselements (71) ist.
  11. Scharnier- und Verriegelungsmittel nach Anspruch 10, dadurch gekennzeichnet, daß es außerdem eine Zunge (72) des betreffenden Verankerungselements (71) umfaßt, die in horizontale Schlitze (73) eingeführt wird, welche an der betreffenden Seitenwand des Helms (1) angeordnet sind, wobei die Zunge (72) mit dem Steckteil eines Einschnapp-Verriegelungsmittels ausgestattet ist, der mit einem entsprechenden Aufnahmeteil am Helm (1) zusammenwirkt.
  12. Scharnier- und Verriegelungsmittel nach Anspruch 11, dadurch gekennzeichnet, daß der Lagerzapfenteil (75) eine umlaufende Rille (79) umfaßt und einen Flansch (78) zur Aufnahme und zum Halten des Lagerringteils (77, 80, 81).
  13. Scharnier- und Verriegelungsmittel nach Anspruch 12, dadurch gekennzeichnet, daß der Zapfenteil (75) etwa die Form zweier Halbkreise unterschiedlichen Durchmessers hat, die in einem Abstand zueinander angeordnet und, bezogen auf eine Linie, die ihre Mittelpunkte miteinander verbindet, symmetrisch sind, mit ihrem größten Abstand an ihren Schnittpunkten mit dieser Mittellinie und verbunden durch Seitenlinien, die tangential den jeweiligen Halbkreis schneiden.
  14. Scharnier- und Verriegelungsmittel nach Anspruch 13, dadurch gekennzeichnet, daß die Breite der Rille (79) geringfügig über der Dicke des Lagerringabschnitts (77, 80. 81) liegt.
  15. Scharnier- und Verriegelungsmittel nach Anspruch 13, dadurch gekennzeichnet, daß die Öffnung (76) des Lagerringabschnitts (77, 80, 81) definiert wird durch eine längere Seitenwand (77) und zwei kürzere Seitenwände (80, 81) von gleicher Länge, wobei die Öffnung (76) dreieckig mit abgerundeten Ecken ist und wobei der kleinere Halbkreis in der Ecke liegt, die durch die Seitenwände (80, 81) definiert wird, und der größere Halbkreis in der einen Verriegelungsstellung in der Ecke liegt, die durch die Seitenwände (77, 81) definiert wird, und der kleinere Halbkreis in der Ecke liegt, die definiert wird durch die Seitenwände (80, 81) und der größere Halbkreis in der Ecke liegt, die in der anderen Verriegelungsposition definiert wird durch die Seitenwände (77, 80).
EP92850130A 1992-06-05 1992-06-05 Visier für Schutzhelme Expired - Lifetime EP0572760B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT92850130T ATE171600T1 (de) 1992-06-05 1992-06-05 Visier für schutzhelme
DE69227184T DE69227184T2 (de) 1992-06-05 1992-06-05 Visier für Schutzhelme
EP92850130A EP0572760B1 (de) 1992-06-05 1992-06-05 Visier für Schutzhelme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92850130A EP0572760B1 (de) 1992-06-05 1992-06-05 Visier für Schutzhelme

Publications (2)

Publication Number Publication Date
EP0572760A1 EP0572760A1 (de) 1993-12-08
EP0572760B1 true EP0572760B1 (de) 1998-09-30

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EP92850130A Expired - Lifetime EP0572760B1 (de) 1992-06-05 1992-06-05 Visier für Schutzhelme

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EP (1) EP0572760B1 (de)
AT (1) ATE171600T1 (de)
DE (1) DE69227184T2 (de)

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Publication number Priority date Publication date Assignee Title
SE9704144L (sv) * 1997-11-12 1999-05-13 Hoernell International Ab Länkmekanism
DE202013103574U1 (de) 2013-08-08 2013-09-02 Ism Gmbh Sicherheitshelm
US10874159B1 (en) * 2017-03-30 2020-12-29 E.D. Bullard Company Protective helmet with attachment mechanism for securing accessories
EP4287902A1 (de) 2021-02-08 2023-12-13 Milwaukee Electric Tool Corporation Befestigungssystem für ein schutzdach für harte hut

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FR2373979A1 (fr) * 1975-12-30 1978-07-13 Norton Co Casque de protection avec visiere
US4067065A (en) * 1976-12-08 1978-01-10 American Optical Corporation Chemical splash shield
SE409539B (sv) * 1978-03-07 1979-08-27 Hellberg Protection Ab Anordning for att till en skyddshjelm lostagbart festa ett fellbart visir
US4475254A (en) * 1982-09-07 1984-10-09 Bay William P Visor attachment for helmet shield
SE455152B (sv) * 1984-12-19 1988-06-27 Bo Gunnar Lonnstedt Ledanordning for fellbart ansiktsskydd pa en skyddshjelm
US5012528A (en) * 1990-03-01 1991-05-07 Institut De Recherche En Sante Et En . . . Visor attachment for safety helmet
AT394300B (de) * 1990-06-15 1992-02-25 Oregon Ets Patentverwertung Schutzhelm

Also Published As

Publication number Publication date
ATE171600T1 (de) 1998-10-15
DE69227184D1 (de) 1998-11-05
EP0572760A1 (de) 1993-12-08
DE69227184T2 (de) 1999-02-18

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