EP0702906B1 - Synchronisiertes Gelenkpaar zur schwenkbaren Befestigung eines Visiers an einem Helm - Google Patents

Synchronisiertes Gelenkpaar zur schwenkbaren Befestigung eines Visiers an einem Helm Download PDF

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Publication number
EP0702906B1
EP0702906B1 EP95402088A EP95402088A EP0702906B1 EP 0702906 B1 EP0702906 B1 EP 0702906B1 EP 95402088 A EP95402088 A EP 95402088A EP 95402088 A EP95402088 A EP 95402088A EP 0702906 B1 EP0702906 B1 EP 0702906B1
Authority
EP
European Patent Office
Prior art keywords
helmet
visor
hinges
pair
pin
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
EP95402088A
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English (en)
French (fr)
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EP0702906A1 (de
Inventor
Eric Petit
Vincent Vitte
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.)
Thales Avionics SAS
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Thales Avionics SAS
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Filing date
Publication date
Application filed by Thales Avionics SAS filed Critical Thales Avionics SAS
Publication of EP0702906A1 publication Critical patent/EP0702906A1/de
Application granted granted Critical
Publication of EP0702906B1 publication Critical patent/EP0702906B1/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

Definitions

  • the present invention relates to an articulated fixing for a visor helmet that can be operated with one hand while allowing tilting of the visor relative to the helmet from a position folded over the face to a raised position revealing the face and inversely according to a complex movement starting with a translation moving the visor away from the helmet in order to release it from a possible seal or ledge and continuing to the raised position with a rotation retracting the visor above the face.
  • Visor helmets are used to protect the head of a pilot in the event of an impact.
  • the helmet protects the skull while the visor protects the face and is used for visual comfort in an aggressive atmosphere: wind, dust, light, fog ... and possibly protection of the environment aggressive chemical.
  • sealing must be ensured between the helmet shell and the visor in the folded position. This requires the presence of a peripheral seal and imposes a frontal docking on the visor causing the latter a tilting movement that does not not limited to a simple rotation and which can no longer be obtained by a direct manipulation of the visor because such manipulation would require the controls a complex movement requiring both hands.
  • helmets are equipped with a helmet sight which is an optical image projection system using a semi-reflecting area visor in the folded position to display in front of the eyes of the driver's driving aid symbols. This requires very precise and excellent reproducibility of the visor position by compared to the other optical elements worn by the helmet.
  • a device comprising the characteristics of the preamble of the claim 1 is known from WO-A-87/04323.
  • the object of the present invention is an articulated fixing of a visor on a helmet which gives the visor a movement of complex tilting based on translation and rotation, and which is can be operated directly by the helmet wearer, with one hand, by simple rotation of a joystick, without requiring motor assistance electric.
  • mechanical means of synchronization include: a cable which slides in a sheath connecting the two joints following the outline of the helmet shell and which is equipped with its two ends of a rack, and two toothed pinions integral with the pivot pins and crank pins of the joints that mesh with the racks so that a rotational movement of a crankpin causes the cable to slide in its sheath and a movement of identical rotation of the other crankpin.
  • the pinions and racks are then mounted in gear boxes housed at the base of each joint.
  • the handles have the shape of a shell having on its outer face depressions facilitating their gripping.
  • the helmet has a protective shell 1 enveloping the skull with the exception of the face.
  • This shell 1 is closed at the front by a fairing 2 in its lower part and by a visor 3 in its upper part.
  • the visor 3 is articulated laterally to the shell 1 of the helmet so that it can be lowered or raised, the visor being operated by means of a lever 4 covering each joint.
  • the shell 1 of the helmet contains, as shown in FIG. 2, a hoop-shaped plate 5 which supports an image-generating tube 6 associated with an optical image projection system 7 on a semi-reflecting area of the visor and the hinges 8 for fixing the visor 3.
  • the image generator tube 6 and the associated optical system 7 are mount on the plate 5 by means of lugs 10, 11 fitting onto tabs placed one 12 at the top of the plate 5, the other 13 on the back of the articulation support 8.
  • the joints 8 for attaching the visor 3 to the helmet are mounted at the ends of the arch of the plate 5, at the temples wearing a helmet and joined together by a sheathed cable 9 of motion synchronization.
  • This facilitates adjustments the respective positions of the elements of the optical system of image projection, avoids the problems posed by the lack of rigidity of the helmet shell 1 on the stability of the adjustment of the relative positions of the visor and other elements of the optical image projection system and simplifies maintenance of the helmet visor.
  • Each end of the arch of the plate 5 ends substantially vertically by an ear 20 pierced with a median hole 21 for a horizontal pivot axis 22 having a flattened circular head 23 extended by a rod 24.
  • the pivot axis 22 is threaded into the hole 21 of the ear 20 from the inside. Its circular head 23 is pressed against the rear wall of the ear 20 while its rod 24 protrudes horizontally from the front wall of the ear in a gearbox.
  • a cover 28 of the box gear is threaded on the pivot axis 22 to close the box gear and secure the pinion 25 and the rack 26.
  • This cover 28 has an extension on the outside tubular 29 serving as a hinge axis surrounded by an annular plate 30 serving as a bearing for the joint.
  • the first and second washers 31, 33 serve as shims thick. They are peelable. By adjusting their individual thicknesses while keeping them a constant overall thickness, we can vary the lateral position of the lug 32 of the visor relative to the plate 5 for fine transverse adjustment of the visor position by compared to the helmet which is useful for adjusting the system elements image projection optics.
  • the lateral attachment tab 32 of the visor is threaded on the tubular extension 29 of the cover 28 of the gearbox surrounding the rod of the pivot axis 22 through a hole 40 in the form of buttonhole whose width determines the amplitude of the travel in translation of the visor relative to the helmet. It has a cam-shaped notch 41 in which a guide finger slides 42 fixed to the outer wall of the gearbox and integral with the wall side of the helmet to define the components in translation and rotation of the tilting movement of the visor relative to the helmet.
  • This notch 41 has a part in an arc 41a defining the rotational movement to bring the visor from its position retracted to its folded position, extended by a straight portion 41b almost radial towards the outside of the part in an arc 41a, of same width and orientation as the buttonhole, defining the translational movement to bring the visor closer to the helmet to ensure its docking when it is folded down.
  • the lateral attachment tab 32 of the visor also has a ovalized hole 43 for its mechanical drive by the crankpin 34 and a flange 44 for its attachment to the visor 3. As can be seen in FIG. 2, the flange 44 is screwed to an intermediate piece 45 riveted to the visor.
  • the crankpin 34 is screwed onto the end of the rod 24 of the axis of pivot thanks to a screw 46 so as to be integral in rotation with the latter like the toothed pinion 25. It has a main arm 47 which ends by a lug 48 for training which is turned towards the lateral attachment tab 32 and which struggles in the ovalized hole 42 and two auxiliary arms arranged star, one 49 for fixing a shell-shaped handle 4 allowing the crankpin 34 to be operated by hand, the other 50 for fixing a spring recalling the crankpin 34 in its extreme positrons of travel corresponding to the folded and retracted positions of the visor 3.
  • the tension spring recalling the crankpin 34 in its positions extremes is visible in Figures 4 to 6. It is a tension spring 51 bearing between a lug 52 of the auxiliary arm 50 of the crankpin 34 turned inward of lever 4 and a fixed pin 53 attached to the outer wall of the gearbox.
  • the handle 4 has a shell shape adapted to the shape of the palm with depressions 54 for the fingertips which makes it easy to manipulate blind.
  • Figure 4 shows, front views, the respective positions of the crankpin 34, side lug 32 of visor and spring traction 51 when the visor 3 is in the folded position.
  • the guide finger 42 is located at the straight end of the notch 41, the actuating lug 48 crankpin at the top of the ovalized hole 43 of the side lug 32 and the pivot axis 22 at the far left of the buttonhole hole 40, on the side of notch 41.
  • Figure 5 shows, still viewed from the front, the positions respective of the crankpin 34, the lateral attachment tab 32 and the spring of traction 51 when the visor is in an intermediate folded position but already moved away from the rim of the helmet.
  • the guide finger 42 is located at the junction of the rectilinear and circular parts of the notch 41, the lug of maneuver 48 of the crankpin at the base of the ovalized hole 43 of the lug lateral 32 and the pivot axis 22 at the extreme right of the buttonhole hole 40 on the side opposite notch 41.
  • Figure 6 shows, still viewed from the front, the respective positions crankpin 34, side lug 32 and tension spring 51 when the visor is in the retracted position above the face.
  • Finger guide 42 is at the end of the circular part of the notch 41, the lug 48 of the crank pin remaining at the base of the ovalized hole 43 and pivot axis 22 to the far right of the buttonhole hole 40 on the opposite side at notch 41.
  • crank pin 34 When a rotational movement is imposed manually on the lever 4, it drives the crank pin 34 and the toothed pinion 25 in rotation.
  • the crankpin 34 causes the lateral attachment tab 32 to tilt and therefore of the visor 3 according to a complex movement of rotation and translation determined by guiding the finger 42 in the notch 41 while that the toothed pinion 25 moves the rack 26 driving the cable in translation in its sheath 27.
  • the cable moves the rack on the other joint which then rotates the toothed pinion and the crankpin on the other joint which is then actuated in synchronism without the need to use his controller.

Landscapes

  • Helmets And Other Head Coverings (AREA)
  • Pivots And Pivotal Connections (AREA)

Claims (5)

  1. Synchronisiertes Gelenkpaar zur schwenkbaren Befestigung eines Visiers (3) an einem Helm, mit einer Schwenkachse (22), die um eine mit der Seitenwand des Helms verbundene Achse schwenkbar ist, dadurch gekennzeichnet, daS die Gelenke jeweils
    eine Lasche (32) zur seitlichen Befestigung des Visiers (3) enthalten, die auf die Schwenkachse (22) durch eine knopflochförmige Aussparung (40) aufgeschoben ist, deren Breite neben einer Drehbewegung eine Ausfederung des Visiers (3) translatorisch bezüglich des Helms (1) ermöglicht, und die mit einem kurvenförmigen Einschnitt (41) versehen ist, in dem ein an der Seitenwand des Helms befestigter Dorn (42) gleitet, um das Visier (3) während dessen Schwenkbewegung translationsbewegbar und drehbar bezüglich des Helms zu führen,
    einen an der Schwenkachse (22) befestigten Drehzapfen (34), der in eine ovale Aussparung (43) der Befestigungslasche (32) so eingreift, daß er durch seine Drehbewegung mit der Schwenkachse (22) die Schwenkbewegung der Befestigungslasche (32) hervorruft,
    eine Handhabe (4), die am Zapfen (34) an der Außenseite des Gelenks befestigt ist, um seine Drehung per Hand zu ermöglichen, und
    Rückholfedermittel (51), die den Zapfen (34) in die Endstellungen seines drehbaren Ausfederungsbereichs zurückführen,
    und daß die Gelenke durch mechanische Synchronisationsmittel (25, 26, 27) gekoppelt sind, welche die Bewegungen ihrer Zapfen (34) synchronisieren.
  2. Gelenkpaar nach Anspruch 1, dadurch gekennzeichnet, daß die mechanischen Synchronisationsmittel folgende Teile enthalten: ein Kabel, das in einer Hülle (9) gleitet, welche die beiden Gelenke am Umriß der Helmschale (1) entlang verbindet, und das an seinen beiden Enden mit einer Zahnstange (26) versehen ist, und zwei Zahnräder (25), die mit den Schwenkachsen (22) und den Zapfen (34) der Gelenke verbunden sind, welche mit den Zahnstangen (26) in Eingriff sind, so daS eine Drehbewegung eines Zapfens (34) eine Verschiebung des Kabels in seiner Hülle (27) und eine identische Drehbewegung des anderen Zapfens hervorruft.
  3. Gelenkpaar nach Anspruch 1, dadurch gekennzeichnet, daß die Zahnräder (25) und die Zahnstangen (26) in einem Getriebekasten angeordnet sind, der an der Basis eines jeden Gelenks aufgenommen ist.
  4. Gelenkpaar nach Anspruch 1, dadurch gekennzeichnet, daß die Handhabe (4) die Form einer Muschel hat, die an ihrer Außenseite Vertiefungen aufweist, um für die Fingerspitzen das Ergreifen zu erleichtern.
  5. Gelenkpaar nach Anspruch 1, dadurch gekennzeichnet, daß die Rückholfedermittel, welche den Zapfen (34) in die Endstellungen seines drehbaren Ausfederungsbereichs zurückführen eine Zugfeder (51) enthalten, die zwischen einem Vorsprung (52) eines Hilfsarms des Zapfens (34) und einem ortsfesten, mit einem Kopf versehenen Teil (53) befestigt ist, das mit der Seitenwand des Helms verbunden ist.
EP95402088A 1994-09-20 1995-09-15 Synchronisiertes Gelenkpaar zur schwenkbaren Befestigung eines Visiers an einem Helm Expired - Lifetime EP0702906B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9411176 1994-09-20
FR9411176A FR2724541B1 (fr) 1994-09-20 1994-09-20 Paire d'articulations a manoeuvres synchronisees pour la fixation d'une visiere escamotable sur un casque

Publications (2)

Publication Number Publication Date
EP0702906A1 EP0702906A1 (de) 1996-03-27
EP0702906B1 true EP0702906B1 (de) 1998-11-18

Family

ID=9467078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95402088A Expired - Lifetime EP0702906B1 (de) 1994-09-20 1995-09-15 Synchronisiertes Gelenkpaar zur schwenkbaren Befestigung eines Visiers an einem Helm

Country Status (7)

Country Link
US (1) US5604930A (de)
EP (1) EP0702906B1 (de)
JP (1) JPH08170212A (de)
CA (1) CA2158620A1 (de)
DE (1) DE69506067T2 (de)
FR (1) FR2724541B1 (de)
IL (1) IL115326A (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303872B (en) * 1995-08-01 1999-01-20 Gec Marconi Avionics Holdings Helmet visor release apparatus
US5901369A (en) * 1997-08-15 1999-05-11 Honeywell Inc. Headgear having an articulated mounting mechanism for a visor
FI982681A0 (fi) * 1998-12-11 1998-12-11 Arimo Ristola Kiinnityssovitelma suojaimien kiinnittämiseksi kypärään
FR2817713B1 (fr) * 2000-12-12 2003-11-28 Thomson Csf Casque a visieres escamotables a reconfiguration rapide jour/nuit
JP3875650B2 (ja) * 2002-07-30 2007-01-31 株式会社アライヘルメット フルフェースヘルメットにおけるマウスシャッタの支持構造
US7895678B2 (en) * 2007-08-06 2011-03-01 Bell Sports, Inc. Helmet with improved shield mount and precision shield control
US8214920B1 (en) * 2008-02-18 2012-07-10 Sperian Eye & Face Protection, Inc. Hard hat adapter for a welding helmet
US8291513B2 (en) * 2009-04-18 2012-10-23 Stephen John Prinkey Counter balanced, hands free, self positioning, protective shield
DE102010027015A1 (de) * 2010-07-13 2012-01-19 Anton Pfanner Gesichtsschutz zur Befestigung an einem Schutzhelm, insbesondere für Forstarbeiter
US9125447B2 (en) 2010-09-20 2015-09-08 Revision Military S.A.R.L. Helmet attachment mechanism for visor
US8813270B2 (en) * 2011-07-26 2014-08-26 Vladimiro Pizzi Helmet with flush aligned shield when closed
ITVR20120022A1 (it) * 2012-02-20 2013-08-21 Agv Spa Dispositivo di movimentazione per un casco per muovere un primo elemento del casco rispetto ad un secondo elemento del casco.
US8701212B2 (en) 2012-09-26 2014-04-22 3M Innovative Properties Company Elongated guide, and visor removably mountable thereto
US9775397B2 (en) 2013-03-15 2017-10-03 3M Innovative Properties Company Elongated guide, and visor removably mountable thereto
US11134741B2 (en) * 2017-05-25 2021-10-05 E.D. Bullard Company Protective helmet with a retractable and removable visor
US10786032B2 (en) * 2019-01-18 2020-09-29 Cookie Composites Group Pty Ltd. Skydiving helmet and visor mounting system
US11213089B2 (en) 2019-06-04 2022-01-04 Msa Technology, Llc Protective helmet with face protection shield and linkage mechanism
IT202200027348A1 (it) * 2022-12-30 2024-06-30 Dainese Spa Casco di protezione
KR102878214B1 (ko) * 2024-05-07 2025-10-29 (주)에이치제이씨 헬멧

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US3050735A (en) * 1958-03-28 1962-08-28 Redwing Ltd Apparatus for automatically pivoting a hinged closure into closed position
US3128469A (en) * 1959-08-06 1964-04-14 Ml Aviation Co Ltd Flying helmets
GB1119409A (en) * 1965-11-09 1968-07-10 Ml Aviation Co Ltd Improvements relating to flying helmets
US3473166A (en) * 1968-01-29 1969-10-21 Eric Noel Mobbs Helmets
IT1092660B (it) * 1978-02-13 1985-07-12 Nava Pier Luigi Dispositivo per azionare visiere di caschi o simili
IT1207216B (it) * 1979-07-27 1989-05-17 Nava Pier Luigi Dispositivo per azionare visiere di caschi, particolarmente per motociclisti.
IT8123588U1 (it) * 1981-11-20 1983-05-20 Essepi Srl Cerniera per visiera ad incasso di caschi protettivi, in particolare per motociclisti.
US4621377A (en) * 1985-03-12 1986-11-11 Figgie International Inc. Helmet assembly
FR2593035B1 (fr) * 1986-01-21 1988-06-10 Chaise Francois Systeme aerodynamique et antibuee de coque et d'ecran de vision d'un casque de protection.
FR2637468B3 (fr) * 1988-08-30 1990-12-21 Chaise Francois Casque de protection equipe d'un ecran de vision au mouvement de relevage automatique et amorti
DE9007028U1 (de) * 1990-06-23 1990-08-30 Uvex Winter Optik GmbH, 8510 Fürth Schutzhelm, insbesondere Motorradschutzhelm
GB9120363D0 (en) * 1991-09-25 1991-11-06 Helmets Ltd Helmets
FR2688661B1 (fr) * 1992-03-20 1994-08-26 Sextant Avionique Casque a visiere articulee et verrouillable.
DE9207186U1 (de) * 1992-05-27 1992-09-03 Tunger, Henry, 8670 Hof Neuer-Motorradfahrer-Helm

Also Published As

Publication number Publication date
CA2158620A1 (fr) 1996-03-21
IL115326A (en) 1998-06-15
FR2724541B1 (fr) 1996-12-06
JPH08170212A (ja) 1996-07-02
FR2724541A1 (fr) 1996-03-22
DE69506067T2 (de) 1999-06-10
US5604930A (en) 1997-02-25
IL115326A0 (en) 1995-12-31
EP0702906A1 (de) 1996-03-27
DE69506067D1 (de) 1998-12-24

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