EP0481860A1 - Vorrichtung zum Verriegeln einer Visierscheibe und Helm mit wenigstens einer derartigen Vorrichtung - Google Patents

Vorrichtung zum Verriegeln einer Visierscheibe und Helm mit wenigstens einer derartigen Vorrichtung Download PDF

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Publication number
EP0481860A1
EP0481860A1 EP91402726A EP91402726A EP0481860A1 EP 0481860 A1 EP0481860 A1 EP 0481860A1 EP 91402726 A EP91402726 A EP 91402726A EP 91402726 A EP91402726 A EP 91402726A EP 0481860 A1 EP0481860 A1 EP 0481860A1
Authority
EP
European Patent Office
Prior art keywords
visor
pawl
hook
assembly
locking device
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.)
Withdrawn
Application number
EP91402726A
Other languages
English (en)
French (fr)
Inventor
Joel Baudou
Patrick Lacroux
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 EP0481860A1 publication Critical patent/EP0481860A1/de
Withdrawn legal-status Critical Current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
    • A42B3/221—Attaching visors to helmet shells, e.g. on motorcycle helmets
    • A42B3/222—Attaching visors to helmet shells, e.g. on motorcycle helmets in an articulated manner, e.g. hinge devices
    • A42B3/223—Attaching visors to helmet shells, e.g. on motorcycle helmets in an articulated manner, e.g. hinge devices with means for locking the visor in a fully open, intermediate or closed position

Definitions

  • the present invention relates to a locking device for holding a helmet visor in a given position.
  • Helmets with at least one visor lock fitted in particular, but not exclusively, to pilots of airplanes and helicopters.
  • the helmet bearing the reference OS 458 and which is manufactured by the company Optique Scientifique Gueneau has two retractable visors, one colorless, the other forming an anti-sun screen.
  • the colorless visor is intended, in particular, to protect the pilot in the event of an impact inside the cabin and to protect him from the blast effect in the event of glass breakage or election; this is why the colorless visor must be lowered for the duration of a flight.
  • the two visors are operated using mechanisms located one on the left side of the helmet, the other on the right side.
  • the colorless visor, controlled by the right mechanism is held in the low position by a locking device constituted by a spiral spring; this maintenance is insufficient in the event of high speed ejection.
  • the present invention aims to avoid this drawback while allowing the mounting of the locking device according to the invention on equipment initially equipped with a locking device according to the known art.
  • a blocking device for blocking a first mechanical assembly comprising a visor, relative to a second mechanical assembly comprising a shell, the first assembly being rotatably mounted about a main axis, so that it can be rotated, relative to the second assembly, between two extreme angular positions, characterized in that it comprises a pawl associated with a spring reminder, the pawl pivoting about a secondary axis at least substantially parallel to the main axis, and a fixed hook to lock the pawl when the first assembly is in one, predetermined, of the two extreme positions, the spring acting on the pawl to hold it in the hook, and in that the pawl, with the spring, is part of one of the two sets and the hook of the other of the two sets.
  • FIG. 1 represents the shockproof helmet produced by Optique Scientifique Gueneau under the reference OS 458 and intended more particularly for aircraft pilots.
  • This helmet comprises a shell 1, which constitutes the cap itself, and two visors, one of which constitutes a sunscreen and the other, 2, a colorless screen; the two visors are controlled by mechanisms located respectively on the left side and on the right side of the shell.
  • the colorless visor, 2 appears and it has been drawn in the two extreme positions 2a, 2b, which it occupies when it is lowered and when it is raised.
  • the visor 2 rotates around a mechanical axis, A, fixed on the shell and is secured to a drive lever 5.
  • a spiral spring, 6, secured to one of its ends of the axis A acts on the lever 5 to help bring and keep the visor 2 in the lowered position.
  • the flange has an oblong hole, 30, which is crossed by a mechanical axis B secured to the lever 5 and parallel to the axis A.
  • An operating button 40 integral with the axis B, allows the visor 2 to be raised or lowered manually. The visor 2 is held in the raised position by an automatic locking device, not shown.
  • Figure 2 shows how, by changing the operating button, 40, original and by ad) anointing a hook 10, the visor is securely held in the lowered position.
  • the hook 10 is fixed to the helmet using two of the screws which make the flange 3 integral with the shell 1.
  • the original button, 40 is replaced by a button 4, part of which has been torn off; the edges Y of this snatch have been hatched in FIG. 2.
  • the body 41 of the button 4 is significantly larger than the original button 40 so as to house a mechanical assembly there which makes it possible to see the torn off and which, in cooperation with the hook 10, constitutes a lock preventing the visor 2 from get up accidentally.
  • the body 41 of the button 4 is mounted, in the same way as the button 40 according to FIG. 1, secured to the axis B.
  • an elastic clearance take-up stopper 11 is fixed to the body of the button in a position where it comes into contact with the hook 10 when the pawl is snapped in. 7.
  • the visor 2 is lowered. by applying pressure with the thumb of the right hand, as shown in Figure 2, on the rear area of the button body; at the end of the stroke, the automatic locking takes place by snap-fastening.
  • the raising of the visor 2 is obtained by the single pressure of the index finger of the right hand, as indicated in FIG. 2, on the head of the pusher 9; this pressure brings the pusher 9 into contact with the pawl 7 which then pivots around the axis C and is thus released from the hook 10.
  • the mechanical assembly contained in the body of the button 4 of FIG. 2 can be modified by making the end stop 11 of the pawl, adjustable by a screw-nut system in order to adjust the visor to the morphology. of the pilot's face.
  • the stop 11 is glued to a screw head and the hook 10 has two parts: the screw on which the stop is glued and a fixed part which is connected to the shell 1 of the same way as the hook 10 of Figure 2, and in which is screwed more or less deeply the screw with its stop; it is then the head of this screw which constitutes the hook proper and it should be noted that, relative to the assembly according to FIG. 2, this hook proper and therefore the hook of the pawl 7 must be slightly shifted downwards in due to the presence of one of the two screws which hold the hook 10 on the shell 1.
  • the invention is applicable to any helmet provided with a visor and in particular, to helmets for motorcyclists, for drivers of cars and for sportsmen practicing a sport at risk.
  • the invention relates to any visor locking device in the extreme position, that is to say in the raised or lowered position, which comprises a movable pawl and a fixed hook; and, contrary to what is described with the aid of FIG. 2, the pawl can have its mechanical axis secured to the shell of the helmet while the hook can pivot with the visor.
EP91402726A 1990-10-16 1991-10-11 Vorrichtung zum Verriegeln einer Visierscheibe und Helm mit wenigstens einer derartigen Vorrichtung Withdrawn EP0481860A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9012740A FR2667765A1 (fr) 1990-10-16 1990-10-16 Dispositif de blocage d'une visiere et casque equipe d'au moins un tel dispositif.
FR9012740 1990-10-16

Publications (1)

Publication Number Publication Date
EP0481860A1 true EP0481860A1 (de) 1992-04-22

Family

ID=9401254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91402726A Withdrawn EP0481860A1 (de) 1990-10-16 1991-10-11 Vorrichtung zum Verriegeln einer Visierscheibe und Helm mit wenigstens einer derartigen Vorrichtung

Country Status (3)

Country Link
EP (1) EP0481860A1 (de)
CA (1) CA2053069A1 (de)
FR (1) FR2667765A1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705871A1 (fr) * 1993-06-04 1994-12-09 Sextant Avionique Dispositif de fixation articulée d'une visière sur un casque.
FR2742636A1 (fr) * 1995-12-26 1997-06-27 Sextant Avionique Casque a dispositif de vision nocturne a securite et ergonomie optimisees
EP0783842A1 (de) * 1995-12-22 1997-07-16 E.D.C. Sa Vorrichtung zur Verriegelung des Visiers eines Helms für Motorradfahrer und dergleichen
US5813048A (en) * 1995-08-01 1998-09-29 Gec-Marconi Avonics (Holdings) Limited Helmet visor release apparatus
US6795978B2 (en) * 2002-03-12 2004-09-28 Bombardier Recreational Products Inc. Cold-weather helmet with spring loaded sunshield
FR2878127A1 (fr) * 2004-11-22 2006-05-26 4Thirty6 Sarl Casque muni d'une visiere, notamment pour la pratique de sport de glisse ou encore utilise pour la chute libre.
EP2319338A1 (de) * 2009-11-10 2011-05-11 Shark Helm mit abschwenkbar Visier
US11583026B2 (en) 2021-02-09 2023-02-21 LIFT Airborne Technologies LLC Automatic visor locking system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9125447B2 (en) 2010-09-20 2015-09-08 Revision Military S.A.R.L. Helmet attachment mechanism for visor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1446416A (fr) * 1965-06-09 1966-07-22 Optique Scient L Casque de pilote d'avion avec mécanisme de manoeuvre et de verrouillage de l'écrande protection
FR2391664A1 (fr) * 1977-05-24 1978-12-22 Ph Diffusion Visiere relevable ph d
FR2394262A1 (fr) * 1977-06-13 1979-01-12 Kiwi Sa Casque a visiere mobile, en particulier pour motocyclistes
FR2413892A1 (fr) * 1978-01-10 1979-08-03 Landi Cesare Casque pourvu d'un dispositif de soulevement automatique de la visiere
US4170042A (en) * 1978-02-06 1979-10-09 Gentex Corporation Readily releasable powered visor-and-lock assembly for helmet
FR2434251A1 (fr) * 1978-07-11 1980-03-21 Elliott Brothers London Ltd Mecanisme de verrouillage, notamment de la visiere d'un casque
EP0270368A1 (de) * 1986-12-03 1988-06-08 Helmets Limited Visiereinrichtung für Helme

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1446416A (fr) * 1965-06-09 1966-07-22 Optique Scient L Casque de pilote d'avion avec mécanisme de manoeuvre et de verrouillage de l'écrande protection
FR2391664A1 (fr) * 1977-05-24 1978-12-22 Ph Diffusion Visiere relevable ph d
FR2394262A1 (fr) * 1977-06-13 1979-01-12 Kiwi Sa Casque a visiere mobile, en particulier pour motocyclistes
FR2413892A1 (fr) * 1978-01-10 1979-08-03 Landi Cesare Casque pourvu d'un dispositif de soulevement automatique de la visiere
US4170042A (en) * 1978-02-06 1979-10-09 Gentex Corporation Readily releasable powered visor-and-lock assembly for helmet
FR2434251A1 (fr) * 1978-07-11 1980-03-21 Elliott Brothers London Ltd Mecanisme de verrouillage, notamment de la visiere d'un casque
EP0270368A1 (de) * 1986-12-03 1988-06-08 Helmets Limited Visiereinrichtung für Helme

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705871A1 (fr) * 1993-06-04 1994-12-09 Sextant Avionique Dispositif de fixation articulée d'une visière sur un casque.
EP0628261A1 (de) * 1993-06-04 1994-12-14 Sextant Avionique Vorrichtung zur gelenkigen Befestigung einer Visierscheibe an einem Helm
US5813048A (en) * 1995-08-01 1998-09-29 Gec-Marconi Avonics (Holdings) Limited Helmet visor release apparatus
EP0783842A1 (de) * 1995-12-22 1997-07-16 E.D.C. Sa Vorrichtung zur Verriegelung des Visiers eines Helms für Motorradfahrer und dergleichen
FR2742636A1 (fr) * 1995-12-26 1997-06-27 Sextant Avionique Casque a dispositif de vision nocturne a securite et ergonomie optimisees
EP0783843A1 (de) * 1995-12-26 1997-07-16 Sextant Avionique Helm mit Nachtsichtvorrichtung und optimierter Sicherheit und Ergonomie
US5822126A (en) * 1995-12-26 1998-10-13 Sextant Avionique Helmet with night-vision device providing optimized safety and ergonomy
US6795978B2 (en) * 2002-03-12 2004-09-28 Bombardier Recreational Products Inc. Cold-weather helmet with spring loaded sunshield
FR2878127A1 (fr) * 2004-11-22 2006-05-26 4Thirty6 Sarl Casque muni d'une visiere, notamment pour la pratique de sport de glisse ou encore utilise pour la chute libre.
EP2319338A1 (de) * 2009-11-10 2011-05-11 Shark Helm mit abschwenkbar Visier
FR2952277A1 (fr) * 2009-11-10 2011-05-13 Shark Casque a ecran pivotant
US11583026B2 (en) 2021-02-09 2023-02-21 LIFT Airborne Technologies LLC Automatic visor locking system

Also Published As

Publication number Publication date
CA2053069A1 (en) 1992-04-17
FR2667765A1 (fr) 1992-04-17

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