EP2976957B1 - Schutzhelm mit beweglichem kieferschild mit automatischem displayerfassungsmechanismus - Google Patents

Schutzhelm mit beweglichem kieferschild mit automatischem displayerfassungsmechanismus Download PDF

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Publication number
EP2976957B1
EP2976957B1 EP15176832.2A EP15176832A EP2976957B1 EP 2976957 B1 EP2976957 B1 EP 2976957B1 EP 15176832 A EP15176832 A EP 15176832A EP 2976957 B1 EP2976957 B1 EP 2976957B1
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EP
European Patent Office
Prior art keywords
screen
cam
helmet
chin guard
shell
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EP15176832.2A
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English (en)
French (fr)
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EP2976957A1 (de
Inventor
Philippe Berthier
Jean François MAILLARD
Moïse ARRIBARD
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Shark
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Shark
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    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/32—Collapsible helmets; Helmets made of separable parts ; Helmets with movable parts, e.g. adjustable
    • A42B3/326—Helmets with movable or separable chin or jaw guard
    • 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

Definitions

  • the present invention relates to a protective helmet, in particular for a motorcyclist.
  • a protective helmet of the type comprising a shell on which are mounted mobile screen and chinrest.
  • EP 1 806 986 proposes that the screen, when lowered, bears against an upper outer edge of the closed chin bar, and the chin strap cooperates with shaped guide means for guiding it in a non-circular trajectory, combining rotation and translation, whereby the chin guard deviates from the hull and tilts backward over the screen to its open position.
  • the present invention aims to solve this problem by providing a helmet equipped with at least one automatic lifting mechanism of the screen when the chinrest is moved from the open position to the closed position.
  • the tilting of the chinrest forward from the open position concomitantly causes the lifting of the screen, initially lowered, taking advantage of the or each guide pin which guides the chin in its movement to rotate one or two rotating cams which will act on one or two respective follower elements to raise the screen.
  • cam-follower system which will be located to the right or to the left of the hull, or to have two cam-follower systems, which will be located to the right and to the left of the hull.
  • the or each cam follower system is shaped so that, starting from a configuration in which the chinrest is in the open position and the screen is in lowered position, when the cam pivots under the effect of the movement closing the chin guard, said cam comes into contact with the follower element and controls the displacement of the screen by acting on the follower element in the direction of at least a partial recovery of the screen.
  • the cam and the follower member may be in contact, so that the lifting of the screen starts as soon as the chinrest begins to tilt forward.
  • the cam is spaced from the follower member with a predefined mounting clearance, and comes into contact with the follower element after the chin guard has traveled a certain portion of the return path to the position. closed.
  • the lifting of the screen does not start immediately when the chinrest leaves its open position.
  • the or each cam follower system is shaped so that, starting from the first configuration, when the cam pivots under the effect of the closing movement of the chinrest, the cam drives the displacement of the screen by acting on the follower element in the sense of raising the screen to a partially raised intermediate position, and then the cam and the follower member leave the contact once the screen in said intermediate position while the cam continues to rotate until the chinrest reaches its closed position.
  • the or each cam follower system causes a partial lifting of the screen under the effect of the closing movement of the chinrest, to allow degrees of freedom necessary for the proper operation of the lifting mechanism of the chinrest. Indeed, by ensuring that the or each cam leaves the contact with its follower before the screen is in the raised position (thus locked in the fully raised position), it avoids a blocking potential situation.
  • the lifting mechanism further comprises at least one biasing element urging the screen from the intermediate position to the raised position.
  • the return element or elements preferably of the elastic return element type, take over from the cam follower system (s) in order to finish raising the screen, once the or each cam has left contact with its element. follower and left the screen in its intermediate position partially raised.
  • each lateral arm of the screen supports, at a free end, a hinge pin slidably mounted in an oblong hole provided on a wall integral with the shell.
  • this oblong hole allows a displacement of the screen from front to back, or from back to front, thus allowing a complex movement of the screen, combining translation and rotation, advantageous for the concomitant kinematics of the screen and the chin strap, and particularly to bring the screen closer to the hull when it is raised to facilitate the passage of the chin guard over the screen.
  • each lateral arm of the screen supports a pin engaged in an arcuate groove mounted on the shell to impose a trajectory not completely circular to the screen between its lowered and raised positions.
  • the arcuate grooves are shaped to impose a trajectory combining translation and rotation in which when raising the screen, starting from the lowered position, the screen first deviates from the hull to the front , then follows a rotational movement, and finally approaches the hull to the raised position.
  • each lateral branch of the chinrest supports, on an inner face, at least one guiding pin engaged in a groove formed on a side wall integral with the shell, said groove defining a trajectory of the chinrest not entirely circular, combining rotation and translation, between its open and closed positions.
  • At least one guiding pin is in abutment against a corresponding guide pin when the chin guard is in the closed position.
  • At least one guide pin which optionally supports a cam, serves as a stop for the corresponding guide pin.
  • each groove has a starting portion which mainly defines a translation movement towards the front of the chin guard when it is opened from the closed position, so that the guide pin away from the guide finger before said guide finger begins to pivot with the chinrest or has rotated a few degrees.
  • the present invention also relates to the characteristic according to which at least one guide pin comprises an outer portion of shape oblong substantially complementary with the slide in which said guide pin is engaged.
  • This oblong portion embraces the interior of the slide and thus causes the rotation of the guide finger when the slide rotates (that is, when the chinrest rotates).
  • the or each cam has a protruding lug deviating radially from the transverse axis of rotation of the corresponding guide pin; this projecting tab defining at least partly the cam surface driving the displacement of the follower element, and thus the displacement of the screen.
  • the screen when the screen is in the lowered position and the chinrest in the closed position, the screen bears against an upper outer rim of the chin guard, with in particular an inner face of the screen in support against a seal carried by the outer upper edge of the chinrest.
  • the seal is optimal by being equivalent to that of a conventional full-face helmet with fixed chin.
  • a helmet 1 according to the invention comprises a rigid shell 2 generally shaped spherical cap open, intended to be worn on the head of a wearer and to protect it.
  • the helmet 1 also comprises a screen 3 and a chinrest 4 mounted mobile on the shell 2.
  • the screen 3 has a central visor 30 of curved shape, made of a transparent material and secured to two lateral arms 31 articulated on the shell 2, and in particular on the right and left side walls of the shell 2.
  • the lateral arms 31 are articulated on flanges 20 fixed integrally on the shell 2.
  • Each lateral arm 31 has a free end, opposite to the central visor 30, which integrally supports a hinge pin 32.
  • This hinge pin 32 is in the form of a cylindrical rod and projects towards the This hinge pin 32 terminates in an enlarged head 320 which forms a stop for the hinge axis 32.
  • each lateral arm 31 is slidably mounted inside an oblong orifice 21 formed through in the corresponding flange 20.
  • the enlarged head 320 transversely blocks the hinge axis 32 inside the oblong orifice 21.
  • the oblong orifice 21 extends rectilinearly substantially from front to back, and has a closer front bottom. from the front of the helmet 1 and a rear bottom located closer to the back of the helmet 1.
  • Each lateral arm 31 also integrally supports a pin 33 projecting towards the inside of the shell 2 and disposed at a predefined distance from the hinge axis 32, close to the central visor 30.
  • each lateral arm 31 is engaged in an arcuate groove 22 formed on a guide piece 23 integral with the shell 2, and more specifically fixed integrally on the flange 20.
  • the lateral arm 31, the hinge axis 32 and the pin 33 can be made in one piece, as in the example illustrated in the figures, or in several elements fixed together.
  • the guide piece 23 is a separate piece of the flange 20 and is fixed thereto, in particular by screwing or riveting, in the example illustrated in the figures, and in a variant the guide piece 23 and the flange 20 are formed of one piece.
  • the lower and upper bottoms of the groove 22 are situated substantially at the same distance from the oblong orifice 21, and these bottoms are the parts of the groove which are closest to the oblong orifice 21.
  • each pin 33 is housed in the lower bottom of the corresponding groove 22 and the hinge pin 32 is housed in the rear bottom of the oblong orifice 21.
  • each pin 33 is housed in the upper bottom of the corresponding groove 22 and the hinge pin 32 is housed in the rear bottom of the oblong orifice 21.
  • each pin 33 circulates in the intermediate portion of the corresponding groove 22 and the hinge pin 32 is housed in the front bottom of the oblong orifice 21.
  • each groove 22 has recesses which form bearings ensuring a stable hold of the pins 33 within these funds.
  • the intermediate portion of each groove 22 is bordered on the rear side by a notched edge which allows stepwise displacement of the screen 3.
  • Each lateral arm 31 has a so-called follower element 34 which is in the form of a portion projecting downwards from a lower edge of the lateral arm 31.
  • This follower element 34 is made of material with the lateral arm 31, but would have could be achieved independently and fixed on the lateral arm 31.
  • the chin guard 4 is provided with a locking system (not shown) on the shell 2 in the closed position.
  • the chinrest 4 has a central protective body 40 of curved shape, integral with two lateral branches 41 articulated on the shell 2, and in particular on the right and left side walls of the shell 2.
  • Each lateral branch 41 supports, on an inner face, a guiding pin 42 (visible on the Figures 14 to 16 ), this guide pin 41 being fixed in a housing provided on a stud 43 (visible on the figure 4 ) provided on the internal face of the lateral branch 41.
  • Each guiding pin 42 is slidably engaged in a groove 24 formed on a side wall or plate 25 integral with the shell 2.
  • Each plate 25 covers the corresponding lateral arm 31 of the screen 3, and the flange 20.
  • the groove 24 is formed through the plate 25 concerned, and has a generally curved shape and defines a guide rail for the guiding pin 42.
  • EP 1 806 986 which describes in detail such a groove.
  • these grooves 24 define a complex trajectory of the not completely circular chin 4, combining rotation and translation, between its open and closed positions.
  • each groove 24 has a fully curved shape, without rectilinear portion and without angle.
  • each lateral branch 41 has a slide 44 made in the form of an oblong through slot, and in which is slidably engaged a guide pin 26 fixed on the shell 2.
  • a slide 44 made in the form of an oblong through slot, and in which is slidably engaged a guide pin 26 fixed on the shell 2.
  • Each guide pin 26 has a through hole in which is engaged a rod 27 for fixing, in particular by screwing, on the shell 2.
  • each guide pin 26 is pivotally mounted on the shell 2 along a transverse axis of rotation defined by the stem 27.
  • the protruding lug 264 is curved and has a concave front surface 2641 (that is, bulging inwardly of the protruding lug 264), a convex dorsal surface (that is, bulging outwardly of the prosthesis), and an apex 2643 joining the front and back surfaces 2641, 2642.
  • the outer portion 261 of the guide finger 26 extends on the outer side of the plate 25 to cooperate with the slideway 44, while the cam 263 extends on the inner side of the plate 25 to cooperate with the element.
  • follower 34 of the corresponding lateral arm 31 (as described later); the intermediate portion 262 blocking the guide finger on the plate 25.
  • the chin strap 4 slides along the guide fingers 26 between its two extreme positions, and concomitantly the guide fingers 26 rotate around their respective axes of rotation, thereby causing the rotation of the cams 263, as illustrated on the figure 13 which represents a tilting sequence of the chin strap from its open position ( Figure 13 (a) ) to its closed position ( Figure 13 (f) ) with guide pin 42 running in groove 24.
  • the guide finger 26 is angularly positioned so that the protruding lug 264 of the cam 263 is oriented towards the front of the helmet 1, and more specifically with its top 2643 facing the front and bottom of the helmet 1 in situation on the carrier.
  • the guiding pin 42 bears against the convex dorsal surface 2642 of the protruding lug 264.
  • the follower element 34 can not come into contact with the cam 26, whatever the position of screen 3; a hollow 2644 (referenced on the figure 14 ) can be provided on the cam 26, in the continuity of the convex dorsal surface 2642 of the protruding lug 264, so that the follower element 34 is not in contact with the cam 26 when the screen 3 is in position lowered.
  • the guide finger 26 is angularly positioned so that the protruding lug 264 of the cam 263 is oriented toward the rear of the helmet 1, and more specifically with its top 2643 facing the rear and the top of the helmet 1 in situation on the wearer.
  • the guiding pin 42 bears against the convex dorsal surface 2642 of the projecting lug 264.
  • the follower element 34 bears against the cam 26, and more specifically against the concave frontal surface.
  • cam 26 and the follower element 34 are such that, when the chinrest 4 is in the open or closed position, the screen 3 is free to move between its lowered and raised positions.
  • cam-follower systems where each cam 26 defines a cam surface (itself defined mainly by the surfaces 2641, 2642 and by the top 2643 of the projecting tab 264) for contact with the follower element 34; these two cam-follower systems forming an automatic lifting mechanism of the screen 3 configured to partially raise the screen 3 from its lowered position during the closing movement of the chin guard 4 from its open position to its position closed.
  • Each elastic return member 5 may be in the form of a helical spring having a branch fixed on the plate 26 (thus fixed on the shell 2) and another branch acting on the corresponding lateral arm 31.
  • each elastic return member 5 may be in the form of an elastically deformable blade or any other elastically deformable member acting on the corresponding lateral arm 31 to move the screen 3 from the partially raised intermediate position of the figure 7 to the raised position.

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  • Helmets And Other Head Coverings (AREA)

Claims (12)

  1. Schutzhelm (1), vor allem für Motorradfahrer, in der Art eine Schale (2) umfassend, auf der beweglich ein Visier (3) und ein Kinnschutz (4) montiert sind, wobei der besagte Kinnschutz (4) zwischen einer geschlossenen Position an der Vorderseite der Schale (2) und einer offenen Position bewegt werden kann, in welcher der Kinnschutz (4) an der Rückseite der Schale (2) über den höchsten Punkt der Schale (2) hinweg positioniert ist, wobei der Kinnschutz (4) zwei seitliche Schenkel (41) aufweist, von denen jeder mit einer Gleitschiene (44) versehen ist, in welche zumindest ein Führungsstift (26) eingeführt wird, der fest mit der Schale (2) verbunden ist, sodass der Kinnschutz (4) entlang der besagten Führungsstifte (26) zwischen seinen beiden Positionen gleitet, und das besagte Visier (3) zwischen einer abgesenkten Position und einer angehobenen Position bewegt werden kann, und zwei auf der Schale (2) angelenkte seitliche Arme (31) aufweist, wobei der besagte Helm (1) einen automatischen Hebemechanismus des Visiers (3) umfasst, der konfiguriert ist, um das Visier (3) bei der Schließbewegung des Kinnschutzes (4) von seiner offenen Position bis in seine geschlossene Position aus seiner abgesenkten Position zumindest teilweise anzuheben, wobei der Hebemechanismus des Visiers (3) zumindest ein Nocken-Folgegliedsystem umfasst, wobei der besagte Helm dadurch gekennzeichnet ist, dass das Nocken-Folgegliedsystem Folgendes umfasst:
    - einen Drehnocken (263), der fest mit einem Führungsstift (26) verbunden ist, wobei der besagte Führungsstift (26) entsprechend einer querlaufenden Drehachse drehbar auf der Schale (2) montiert ist, und durch eine Formzusammenwirkung mit seiner Gleitschiene (44) drehbar mit dem entsprechenden seitlichen Schenkel (41) des Kinnschutzes (4) verbunden ist, und
    - ein Folgeglied (34), das fest mit einem seitlichen Arm (31) des Visiers (3) verbunden ist,
    wobei der Nocken (263) und das Folgeglied (34) über eine gegebene Nockenfläche zumindest teilweise in Kontakt stehen.
  2. Helm (1) nach Anspruch 1, wobei das oder jedes Nocken-Folgegliedsystem geformt ist, sodass, ausgehend von einer ersten Konfiguration, in welcher der Kinnschutz (4) in der offenen Position und das Visier (3) in der abgesenkten Position ist, wenn sich der Nocken (263) unter Einwirkung der Schließbewegung des Kinnschutzes (4) dreht, der besagte Nocken (263) in Kontakt mit dem Folgeglied (34) tritt, und die Bewegung des Visiers (3) ansteuert, indem er im Sinne eines zumindest teilweisen Anhebens des Visiers (3) auf das Folgeglied (34) einwirkt.
  3. Helm (1) nach Anspruch 2, wobei das oder jedes Nocken-Folgegliedsystem geformt ist, sodass, ausgehend von der ersten Konfiguration, wenn sich der Nocken (263) unter Einwirkung der Schließbewegung des Kinnschutzes (4) dreht, der Nocken (263) die Bewegung des Visiers (3) ansteuert, indem er auf das Folgeglied (34) im Sinne eines Anhebens des Visiers (3) bis in eine teilweise angehobene Zwischenposition einwirkt, und der Nocken (263) und das Folgeglied (34) danach den Kontakt verlieren, sobald das Visier (3) in der besagten Zwischenposition ist, während sich der Nocken (263) weiterdreht, bis der Kinnschutz (4) seine geschlossene Position erreicht.
  4. Helm (1) nach Anspruch 3, wobei der Hebemechanismus darüber hinaus zumindest ein elastisches Rückholelement (5) umfasst, welches das Visier (3) von der Zwischenposition in die angehobene Position drängt.
  5. Helm (1) nach irgendeinem der vorhergehenden Ansprüche, wobei jeder seitliche Arm (31) des Visiers (3) an einem freien Ende eine Gelenkachse (32) trägt, die gleitend in einem Langloch (21) montiert ist, das in einer Wandung (20) vorgesehen ist, die fest mit der Schale (2) verbunden ist.
  6. Helm (1) nach Anspruch 5, wobei jeder seitliche Arm (31) des Visiers (3) einen Stift (33) trägt, der in eine bogenförmige Nut (22) eingreift, die auf der Schale (2) montiert ist, um dem Visier (3) eine nicht vollkommen kreisförmige Bewegungsbahn zwischen seiner abgesenkten und angehobenen Position aufzuerlegen.
  7. Helm (1) nach Anspruch 6, wobei die bogenförmigen Nuten (22) geformt sind, um eine Bewegungsbahn aufzuerlegen, die Vorschub und Drehung kombiniert, bei der sich das Visier (3) beim Anheben des Visiers (3), ausgehend von der abgesenkten Position zuerst von der Schale (2) nach vorne abhebt und danach eine Drehbewegung durchführt, und sich schließlich der Schale (2) bis zur angehobenen Position annähert.
  8. Helm (1) nach irgendeinem der vorhergehenden Ansprüche, wobei jeder seitliche Schenkel (41) des Kinnschutzes (4) an einer Innenfläche zumindest einen Führungsstift (42) trägt, der in eine Nut (24) eingeführt wird, die auf einer seitlichen Wandung (25) gebildet wird, die fest mit der Schale (2) verbunden ist, wobei die besagte Nut (24) eine nicht vollkommen kreisförmige Bewegungsbahn des Kinnschutzes (4) zwischen der offenen und geschlossenen Position definiert, die Drehung und Vorschub kombiniert.
  9. Helm (1) nach Anspruch 8, wobei zumindest ein Führungsstift (42) auf Anschlag an einem entsprechenden Führungsstift (26) anliegt, wenn der Kinnschutz (4) in der geschlossenen Position ist.
  10. Helm (1) nach irgendeinem der vorhergehenden Ansprüche, wobei zumindest ein Führungsstift (26) einen äußeren Abschnitt (261) in länglicher Form in etwa ergänzend zur Gleitschiene (44) umfasst, in die der besagte Führungsstift (26) eingeführt wird.
  11. Helm (1) nach irgendeinem der vorhergehenden Ansprüche, wobei der oder die Nocken (263) eine überstehende Lasche (264) aufweist, die sich radial von der querlaufenden Drehachse des entsprechenden Führungsstifts (26) abhebt.
  12. Helm (1) nach irgendeinem der vorhergehenden Ansprüche, wobei das besagte Visier (3), wenn das Visier (3) in der abgesenkten Position ist und der Kinnschutz (4) in der geschlossenen Position ist, an einem oberen äußeren Rand (46) des Kinnschutzes (4) anliegt, vor allem mit einer Innenseite des Visiers (3) an einer Dichtung (47) anliegend, die vom oberen äußeren Rand (46) des Kinnschutzes (4) getragen wird.
EP15176832.2A 2014-07-21 2015-07-15 Schutzhelm mit beweglichem kieferschild mit automatischem displayerfassungsmechanismus Active EP2976957B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1457005A FR3023681B1 (fr) 2014-07-21 2014-07-21 Casque de protection a mentonniere mobile avec mecanisme de relevage automatique de l’ecran

Publications (2)

Publication Number Publication Date
EP2976957A1 EP2976957A1 (de) 2016-01-27
EP2976957B1 true EP2976957B1 (de) 2017-03-01

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EP15176832.2A Active EP2976957B1 (de) 2014-07-21 2015-07-15 Schutzhelm mit beweglichem kieferschild mit automatischem displayerfassungsmechanismus

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US (1) US9854866B2 (de)
EP (1) EP2976957B1 (de)
AU (1) AU2015205831B2 (de)
BR (1) BR102015017243B1 (de)
ES (1) ES2625394T3 (de)
FR (1) FR3023681B1 (de)

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KR102587766B1 (ko) * 2018-12-05 2023-10-12 주식회사 기도스포츠 턱 보호대 위치결정 조립체 및 이를 구비하는 헬멧
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CN109875177B (zh) 2019-03-04 2024-02-13 江门市鹏程头盔有限公司 一种齿轮约束型可变护颚结构头盔
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EP3001919B1 (de) * 2014-09-30 2018-03-14 Locatelli S.p.A. Helm zum motorradfahren

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* Cited by examiner, † Cited by third party
Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11213089B2 (en) 2019-06-04 2022-01-04 Msa Technology, Llc Protective helmet with face protection shield and linkage mechanism

Also Published As

Publication number Publication date
FR3023681A1 (fr) 2016-01-22
AU2015205831B2 (en) 2019-07-18
EP2976957A1 (de) 2016-01-27
BR102015017243A2 (pt) 2016-01-26
ES2625394T3 (es) 2017-07-19
FR3023681B1 (fr) 2016-08-19
US9854866B2 (en) 2018-01-02
BR102015017243B1 (pt) 2022-03-08
AU2015205831A1 (en) 2016-02-04
US20160015114A1 (en) 2016-01-21

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