EP0702906A1 - 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
EP0702906A1
EP0702906A1 EP95402088A EP95402088A EP0702906A1 EP 0702906 A1 EP0702906 A1 EP 0702906A1 EP 95402088 A EP95402088 A EP 95402088A EP 95402088 A EP95402088 A EP 95402088A EP 0702906 A1 EP0702906 A1 EP 0702906A1
Authority
EP
European Patent Office
Prior art keywords
helmet
visor
pair
articulations
crankpin
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.)
Granted
Application number
EP95402088A
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English (en)
French (fr)
Other versions
EP0702906B1 (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
Original Assignee
Thales Avionics SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 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 attachment for a helmet visor which can be operated with one hand while allowing the visor to tilt relative to the helmet from a position folded over the face to a raised position revealing the face and vice versa according to a movement. complex starting with a translation moving the visor away from the helmet in order to free it from a possible seal or rim and continuing to the raised position by a rotation retracting the visor above the face.
  • Visor helmets are used to protect a pilot's head 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 environment: wind, dust, light, fog ... and, possibly for protection in an aggressive chemical environment.
  • the seal 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 front docking on the visor, causing the latter to tilt, which is not limited to a simple rotation and which can no longer be obtained by direct manipulation of the visor because such manipulation would impose on the pilot a complex movement requiring both hands.
  • helmets are equipped with a helmet viewfinder which is an optical image projection system using a semi-reflecting area of the visor in the folded position to display driving assistance symbols before the eyes of the pilot. This requires very precise adjustment and excellent reproducibility of the position of the visor with respect to the other optical elements carried by the helmet.
  • the object of the present invention is to provide an articulated fixing of a visor to a helmet which gives the visor a complex tilting movement based on translation and rotation, and which can be operated directly by the helmet wearer, with one hand , by simple rotation of a lever, without requiring the assistance of electric motors.
  • the mechanical synchronization means comprise: a cable which slides in a sheath connecting the two articulations following the contour of the shell of the helmet and which is equipped at its two ends with a rack, and two toothed pinions integral with the pivot axes and crank pins of the joints which mesh with the racks so that a rotational movement of a crank pin causes the cable to slide in its sheath and an identical rotational movement of the other crank pin.
  • 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 as to be able to be lowered or raised, the operation of the visor being effected by means of a lever 4 covering each articulation.
  • 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 joints 8 for fixing the visor 3.
  • the image generator tube 6 and the associated optical system 7 are mounted on the plate 5 by means of lugs 10, 11 which fit onto tongues placed one 12 at the top of the plate 5, the other 13 on the back of the support of a joint 8.
  • the joints 8 for fixing the visor 3 to the helmet are mounted at the ends of the arch of the plate 5, at the level of the temples of the helmet wearer and joined together by a sheathed cable 9 of movement synchronization.
  • This facilitates the adjustments of the respective positions of the elements of the optical image projection system avoids the problems posed by the lack of rigidity of the shell 1 of the helmet on the stability of the adjustment of the relative positions of the visor and of the other elements of the helmet. optical image projection system and simplifies maintenance of the helmet viewfinder.
  • 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 axis of pivot 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 gear box.
  • This toothed pinion 25 is integral in rotation with the pivot axis 22 by means of grooves of complementary profiles made on the surface of the rod 23 of the pivot axis and inside its bore. It is housed in the gearbox in the company of a rack 26 on which it meshes. The rack 26, which is moved back and forth, is attached to the rack of the other joint by means of a cable sliding in a sheath 9 connecting the gear boxes of the two joints.
  • a cover 28 of the gearbox is threaded on the pivot axis 22 to close the gearbox and secure the pinion 25 and the rack 26 in place.
  • This cover 28 has externally a tubular extension 29 serving as an articulation axis surrounded by an annular plate 30 serving as a bearing for the articulation.
  • the first and second washers 31, 33 serve as shims. They are peelable. By adjusting their individual thicknesses while keeping them a constant overall thickness, the lateral position of the attachment tab 32 of the visor relative to the plate 5 can be varied for fine transverse adjustment of the position of the visor relative to headphones which is useful for adjusting the elements of the optical image projection system.
  • the lateral attachment tab 32 of the visor is threaded onto the tubular extension 29 of the cover 28 of the gearbox surrounding the rod of the pivot axis 22 by means of a hole 40 in the form of a buttonhole whose width determines the amplitude of the travel in translation of the visor relative to the helmet. It is provided with a cam-shaped notch 41 in which slides a guide finger 42 fixed to the outer wall of the gearbox and integral with the side wall of the helmet to define the components in translation and rotation of the movement of tilting of the visor relative to the helmet.
  • This notch 41 has a part in an arc 41a defining the rotational movement making it possible to bring the visor from its retracted position to its folded position, extended by a rectilinear part 41b almost radial turned towards the outside of the arc part of circle 41a, of the same width and of the same orientation as the buttonhole, defining the translational movement allowing the visor to be brought closer to the helmet to ensure it comes into contact when it is folded down.
  • the lateral attachment tab 32 of the visor also has an 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 crank pin 34 is screwed onto the end of the rod 24 of the pivot axis by means of 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 in a drive pin 48 which is turned towards the lateral attachment tab 32 and which struggles in the ovalized hole 42 and two auxiliary arms arranged in a star, one 49 for fixing a lever 4 in the form of a shell allowing the crankpin 34 to be operated by hand, the other 50 for fixing a spring recalling the crankpin 34 in its extreme positions of travel corresponding to the folded and retracted positions of the visor 3.
  • the tension spring recalling the crank pin 34 in its extreme positions is visible in FIGS. 4 to 6. It is a tension spring 51 bearing between a lug 52 of the auxiliary arm 50 of the crank pin 34 turned towards the inside of the handle 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 of the hand with depressions 54 for the tips of the fingers which makes its manipulation in blind easy.
  • FIG. 4 shows, seen from the front, the respective positions of the crankpin 34, of the lateral attachment tab 32 of the visor and of the tension spring 51 when the visor 3 is in the folded position.
  • the guide finger 42 is located at the rectilinear end of the notch 41, the operating lug 48 of the crank pin at the top of the ovalized hole 43 of the lateral attachment tab 32 and the pivot axis 22 to the far left of the buttonhole hole 40, on the side of the notch 41.
  • FIG. 5 shows, still viewed from the front, the respective positions of the crankpin 34, of the lateral attachment tab 32 and of the tension spring 51 when the visor is in a folded intermediate position but already spaced 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 actuating lug 48 of the crank pin at the base of the ovalized hole 43 of the fastening tab lateral 32 and the pivot axis 22 at the extreme right of the buttonhole hole 40 on the side opposite the notch 41.
  • FIG. 6 shows, still viewed from the front, the respective positions of the crankpin 34, the lateral attachment tab 32 and the tension spring 51 when the visor is in the retracted position above the face.
  • the guide finger 42 is located 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 the pivot axis 22 on the far right of the buttonhole hole 40 on the side opposite the notch 41.
  • crank pin 34 When a rotary movement is imposed manually on the handle 4, it drives the crank pin 34 and the toothed pinion 25 in rotation.
  • the crank pin 34 causes the lateral fastening tab 32 and therefore the visor 3 to topple over according to a complex movement of rotation and translation determined by the guiding of the finger 42 in the notch 41 while the toothed pinion 25 moves the rack 26 driving the cable in translation in its sheath 27.
  • the cable moves the rack of the other articulation which then rotates the toothed pinion and the crank pin of the other articulation which is then actuated in synchronism without having to use its lever .

Landscapes

  • Helmets And Other Head Coverings (AREA)
  • Pivots And Pivotal Connections (AREA)
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 true EP0702906A1 (de) 1996-03-27
EP0702906B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2737392A1 (fr) * 1995-08-01 1997-02-07 Gec Marconi Avionics Holdings Appareil de liberation de la visiere d'un casque
IT202200027348A1 (it) * 2022-12-30 2024-06-30 Dainese Spa Casco di protezione

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
KR102878214B1 (ko) * 2024-05-07 2025-10-29 (주)에이치제이씨 헬멧

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2014432A (en) * 1978-02-13 1979-08-30 Nava P Device for supporting and moving the visor of a helmet or similar headgear
GB2054351A (en) * 1979-07-27 1981-02-18 Nava Pier Luigi Device to actuate visors particularly for motorcyclists
EP0080202A2 (de) * 1981-11-20 1983-06-01 ESSEPI S.r.l. Scharnier für ein versenkbares Visier für Schutzhelme
WO1987004323A1 (fr) * 1986-01-21 1987-07-30 Demir, Jocelyne Systeme aerodynamique et antibuee de coque et d'ecran de vision d'un casque de protection
FR2637468A1 (fr) * 1988-08-30 1990-04-13 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
DE9207186U1 (de) * 1992-05-27 1992-09-03 Tunger, Henry, 8670 Hof Neuer-Motorradfahrer-Helm
FR2688661A1 (fr) * 1992-03-20 1993-09-24 Sextant Avionique Casque a visiere articulee et verrouillable.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4621377A (en) * 1985-03-12 1986-11-11 Figgie International Inc. Helmet assembly
GB9120363D0 (en) * 1991-09-25 1991-11-06 Helmets Ltd Helmets

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2014432A (en) * 1978-02-13 1979-08-30 Nava P Device for supporting and moving the visor of a helmet or similar headgear
GB2054351A (en) * 1979-07-27 1981-02-18 Nava Pier Luigi Device to actuate visors particularly for motorcyclists
EP0080202A2 (de) * 1981-11-20 1983-06-01 ESSEPI S.r.l. Scharnier für ein versenkbares Visier für Schutzhelme
WO1987004323A1 (fr) * 1986-01-21 1987-07-30 Demir, Jocelyne Systeme aerodynamique et antibuee de coque et d'ecran de vision d'un casque de protection
FR2637468A1 (fr) * 1988-08-30 1990-04-13 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
FR2688661A1 (fr) * 1992-03-20 1993-09-24 Sextant Avionique Casque a visiere articulee et verrouillable.
DE9207186U1 (de) * 1992-05-27 1992-09-03 Tunger, Henry, 8670 Hof Neuer-Motorradfahrer-Helm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2737392A1 (fr) * 1995-08-01 1997-02-07 Gec Marconi Avionics Holdings Appareil de liberation de la visiere d'un casque
IT202200027348A1 (it) * 2022-12-30 2024-06-30 Dainese Spa Casco di protezione

Also Published As

Publication number Publication date
DE69506067T2 (de) 1999-06-10
DE69506067D1 (de) 1998-12-24
FR2724541A1 (fr) 1996-03-22
IL115326A (en) 1998-06-15
CA2158620A1 (fr) 1996-03-21
IL115326A0 (en) 1995-12-31
EP0702906B1 (de) 1998-11-18
FR2724541B1 (fr) 1996-12-06
JPH08170212A (ja) 1996-07-02
US5604930A (en) 1997-02-25

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