EP2137017A1 - Sun shade for automobile - Google Patents

Sun shade for automobile

Info

Publication number
EP2137017A1
EP2137017A1 EP08788113A EP08788113A EP2137017A1 EP 2137017 A1 EP2137017 A1 EP 2137017A1 EP 08788113 A EP08788113 A EP 08788113A EP 08788113 A EP08788113 A EP 08788113A EP 2137017 A1 EP2137017 A1 EP 2137017A1
Authority
EP
European Patent Office
Prior art keywords
extension
support
sun visor
arms
arm
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Withdrawn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
EP08788113A
Other languages
German (de)
French (fr)
Inventor
Frédéric Rousseau
Vincent Bernard
Stéphane Richard
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.)
PSA Automobiles SA
Grupo Antolin France SAS
Original Assignee
Peugeot Citroen Automobiles SA
Grupo Antolin France 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 Peugeot Citroen Automobiles SA, Grupo Antolin France SAS filed Critical Peugeot Citroen Automobiles SA
Publication of EP2137017A1 publication Critical patent/EP2137017A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/02—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in position
    • B60J3/0204—Sun visors

Definitions

  • the invention relates to a sun visor for a motor vehicle, of the type comprising a support structure, an extension structure movable in translation relative to the support structure, and a connecting mechanism connecting the extension structure to the structure support and allowing translation of the extension structure between a retracted position and an extended position.
  • EP-B-138 510 discloses a sun visor comprising a support structure and an extension structure movable in translation relative to the support structure between a retracted position within the support structure and an extended position in which the extension structure extends partly outside the support structure.
  • the extension structure includes a mirror.
  • the sun visor also includes a link mechanism comprising an attachment bar on the support structure, an attachment bar on the extension structure and two arms connecting the two bars.
  • the two arms are articulated in their middle on one another in a purely rotational and X-shaped manner.
  • the two arms are articulated in a purely rotary manner on one and the same side of the bars and are articulated to rotate and slide on an opposite side. bars.
  • the attachment bar on the extension structure is mounted purely sliding inside the support structure. However, the difference in the occultation surface between the deployed position and the retracted position of the sun visor is not sufficient to be mounted to a narrow cross member.
  • An object of the invention is to increase the concealment surface of the sun visor when the extension structure is deployed.
  • the subject of the invention is a sun visor of the aforementioned type, characterized in that the connecting mechanism is such that it extends beyond the support structure when the extension structure is in position. deployed position.
  • the sun visor comprises one or more of the following characteristics, taken in isolation or according to all the technically possible combinations:
  • the sun visor comprises occulting means extending between the support structure and the extension structure when the extension structure is in the deployed position, the concealment means masking the connection mechanism;
  • the occultation means comprise an occultation cloth and a canvas winder making it possible to adjust the length of the cloth to the position of the extension structure;
  • the linking mechanism comprises two support arms articulated on the support structure and two extension arms distinct from the support arms, the extension arms being articulated on the extension structure, the extension arms being articulated to the support arm; - Each support arm is articulated purely rotary on the support structure, each extension arm being articulated purely rotary on the extension structure, and each support arm being articulated purely rotary to a single extension arm;
  • each arm is articulated to a support arm and an extension arm by direct engagement of gear teeth provided on a toothed end of each arm;
  • the connecting mechanism comprises two rigid arms articulated together in their middle, each arm being articulated to the support structure and the extension structure at two opposite ends;
  • connection mechanism comprises differential friction means, the friction generated by said friction means when the extension structure is displaced towards its deployed position being smaller than the friction generated by said friction means when the extension structure is moved to its retracted position;
  • said friction means comprise at least one slider slidably mounted on a rail of one of the support structure and of the extension structure, the slider being furthermore pivotable on the rail between a low friction position and a high friction position, one of the arms being articulated to the pad;
  • the or each movable shoe has a groove mounted to slide and tiltable on the rail, the groove surrounding the rail, the groove having a throat and four walls converging two by two to the throat.
  • FIG. 1 is a schematic sectional view of a portion of a motor vehicle, illustrating a sun visor according to the invention
  • FIG. 2 is a schematic top view partially broken away of a sun visor according to a first embodiment, on which a shade screen has not been shown for better visibility;
  • FIG. 3 is a sectional view along line I-111 of the sun visor of FIG. 2, the occulting fabric being shown;
  • FIG. 4 is an enlarged view of detail IV of FIG. 2;
  • FIG. 5 is a view similar to FIG. 2 of a sun visor according to a second embodiment of the invention;
  • FIG. 6 is a view similar to FIG. 3 of the sun visor of FIG. 5;
  • FIG. 7 is a view similar to Figures 3 and 5 of a sun visor according to a third embodiment.
  • FIG. 8 is an enlarged view of a detail VIII of Figure 7.
  • FIG. 1 illustrates a portion of a front windshield 2 and a roof 4 of a motor vehicle.
  • the terms “front” and “rear” are understood by reference to the direction of movement of the vehicle in the forward direction, illustrated by an arrow S in FIG. 1.
  • the roof 4 comprises a front cross member 6 along the windshield 2 and a glazed flag 8 at the rear of the crossbar 6.
  • the vehicle comprises an extensible sun visor 10 articulated on the crossbar 6.
  • the sun visor 10 is thus rotatable between a storage position in which the sun visor 10 is substantially parallel to the crossbar 6 and applied against the crossbar 6 , and a plurality of use positions in which the sun visor 10 provides a light concealment surface from the windshield 2 or the glazed flag 8.
  • the sun visor 10 comprises a support structure 12 articulated at the rear on the crossmember 6 and an extension structure 14 that can move in translation relative to the support structure 12, following a direction XX, between a plurality of positions including a retracted position and an extended position.
  • the retracted position is very compact, which allows the use of a cross member 6 of small width. It is thus possible to maximize the glass area of the windshield 2 and / or the roof 8.
  • the support structure 12 comprises a reflection device of the illuminated courtesy mirror type.
  • the sun visor 10 comprises a connecting mechanism 16 connecting the support and extension structures 12, 14.
  • the extension structure 14 is carried only by the mechanism 16.
  • the sun visor 10 comprises means 20 for concealing the light, illustrated in FIG. 3.
  • the means 20 for concealment comprise a mask 22 concealing the mechanism 16 and extending between the structures 12 , 14, and a retractor 24 of fabric for adjusting the length of the fabric 22 to the position of the extension structure 14 so that the fabric 22 is always stretched, as shown in Figure 3.
  • the fabric 22 extends on both sides of the mechanism 16 and surrounds.
  • Support and extension structures 12, 14 respectively comprise a support shell 26 and an extension shell 28.
  • Each shell 26, 28 is formed of two half-shells respectively lower and upper 34 substantially symmetrical with respect to each other and contiguous to each other (see Figure 3).
  • the half-shells 30, 34 are for example glued, welded and / or nested with each other. Nevertheless, each shell 26, 28 is for example a single piece of material.
  • the structures 12, 14 have the same length corresponding to the length of the shells 26, 28, measured transversely to the X-X direction.
  • Each shell 26, 28 comprises an end edge 38 delimiting a mouth 40 towards the inside of the shell 26, 28.
  • the shells 26, 28 have a generally U-shaped cross section. The U of each shell 26, 28 are turned towards each other and aligned. Thus, when the extension structure 14 is in the retracted position, the edges 38 of the two shells 26, 28 are contiguous. The mouths 40 of the two shells 26, 28 have the same dimensions. When the shells 26, 28 are contiguous, the edges 38 coincide and the sun visor 10 has a substantially smooth outer surface and continuous. In the retracted position, the connecting mechanism 16 and the fabric 22 are entirely inside the enclosure defined by the two shells 26, 28. They are therefore not visible.
  • the width of the sun visor 10 in the retracted position, measured parallel to the extension direction X-X, is for example between 80 and 90 mm, preferably about 80 mm.
  • the width of the sun visor 10 in the extended position is for example between 160 and 190 mm, preferably approximately equal to 160 mm.
  • the linking mechanism 16 connects the support and extension shells 26, 28.
  • the mechanism 16 comprises four arms 44, 46 of the same length, including two support arms 44 bearing on the support structure 12 and two extension arms 46 resting on the extension structure 14.
  • the support and extension structures 12, 14 comprise means 50 for receiving the arms 44, 46.
  • Each arm 44, 46 has a bearing end 52 hinged to the receiving means 50 and a toothed end 54 opposite the bearing end 52 and
  • the toothed rings 56 of the four arms 44, 46 comprise teeth 58 and are engaged with each other by engagement of the teeth 58, as illustrated in FIGS. 2 and 4.
  • mechanism 16 comprises a clamping base 60 carrying the four ends 54 in a purely rotary manner.
  • the base 60 comprises a lower half-pedestal 62 provided with four rods 64 projecting towards an upper half-pedestal (not shown) and each through a bore 66 of a respective arm 44, 46, the four rods 64 being arranged at the four corners of a square.
  • the teeth 58 of each arm 44, 46 are in direct contact with the teeth 58 of an extension arm 46 and with the teeth 58 of a support arm 44.
  • a rotation of one of the arms 44, 46 around the associated rod 64 of the base 60 of an undirected angle causes a rotation of each of the arms 44, 46 around its rod 64 associated at the same angle.
  • the upper half-base is for example screwed on the lower half-base 62.
  • the friction of the base 60 on the toothed ends 56 of the arms 44, 46 are adjusted by tightening more or less the upper half-base on the lower half-base 62.
  • the bearing ends 52 of a support arm 44 and an extension arm 46 adjacent to each other are mounted purely rotatably on the support structure 12 and the extension structure 14 respectively.
  • the means 50 are each equipped with a pivot 68.
  • the bearing ends 52 of the other support arm 44 and of the other extension arm 46 are rotatably articulated sliding respectively on the support structure 12 and the extension structure 14.
  • the support means reception 50 comprise a slide rail 70 on each of the support and extension structures 12, 14, the support end 52 of the arm 44, 46 being articulated purely rotary on a profile 72 in I itself mounted purely sliding in the rail 70.
  • the joints of the bearing ends 52 are substantially frictionless.
  • the purely rotatable hinged arms 44, 46 are on the same side, i.e. they are adjacent and are meshed directly with each other.
  • the sliding rotary arms 44, 46 are on the opposite side and engage directly with each other.
  • Each arm 44, 46 is articulated directly or indirectly to each of the other arms 44, 46.
  • the forces are transmitted to the set of arms 44, 46. In this way, the movement of the arms 44, 46 is fluid and will not become blocked.
  • the reel 24 is mounted on the support structure 12, inside the shell 26.
  • the fabric 22 has a width measured perpendicular to the direction of extension
  • the fabric 22 has a first end 74 fixed on the reel 24 and a second end 76 fixed on the inside of the shell 26.
  • the structure 12 comprises, inside the shell 26, on the upper half-shell 34, a guide slot 78 along the edge, while the extension structure 14 has upper slots
  • the fabric 22 passes through the slot 78, then the slot 80, before making a half-turn around a tube 84 and through the slot 82. It then joins the support structure 12 to level of its second end 76.
  • the fabric 22 thus forms two upper sections 86 and lower 88 parallel. The sections 86, 88 extend on either side of the arms 44, 46.
  • the fabric 22 is made of a fabric suitable for the occultation of sunlight, for example of the glazed roof shade type 8 or door panel.
  • the winder 24 comprises a winding shaft 90 rotatably mounted on the inside of the shell 26 and a torsion spring (not shown) permanently generating a torque on the shaft 90 so as to exert tension on the fabric 22
  • the tensile force generated by the winder 24 on the fabric 22 is for example about 5 Newtons when the extension structure 14 is in the retracted position and about 10 Newtons when the extension structure 14 is in the deployed position. .
  • the fabric 22 being secured to the support structure 12 and the fabric 22 pressing on the tube 84, the winder 24 generates, via the fabric 22, a tensile force on the extension structure 14 equal to the tensile force of the retractor 24 on the canvas
  • the retractor 24 therefore tends to reduce the structure
  • the extension structure 14, because of its mass and the vertical movements of the vehicle, may have to withstand an acceleration of up to about 3 G, which can be about 5 N in the example shown.
  • the base 60 must generate sufficient friction forces to counter the combination of forces described above.
  • the base 60 is thus for example tightened so as to prevent the displacement of the extension structure 14 for a force along the direction XX less than or equal to about 15 N.
  • the user will have to generate a force in the X-X direction between 20 and 30 N to counter the combination of efforts of the reel 24 and friction forces.
  • the user will instead generate a force in the X-X direction between 5 and 10 N, the forces of the retractor 24 assisting the displacement to the retracted position.
  • the link mechanism 16 is adapted to maintain the extension structure 14 in any of the positions between the deployed and retracted positions.
  • the reel 24 is not necessarily located on the support structure 12, it is for example on the extension structure 14.
  • the link mechanism 16 extending at least partially beyond the support structure 12 when the extension structure 14 is in the deployed position, the extension structure 14 has dimensions independent of the structure 12, that is to say that in the plane of displacement of the extension structure, the mechanism extends between the structures 12 and 14.
  • the lengths of the two structures 12, 14 are identical; which would not be possible if the linking mechanism did not extend beyond the support structure 12 as explained above.
  • the sun visor 10 forms, thanks to this particular feature of the invention, substantially a rectangle and whatever the position of the extension structure 14. The occulting surface formed in the deployed position is important.
  • the width of the sun visor 10 in the retracted position of the extension structure 14 is small and the size of the sun visor 10 is small.
  • the sun visor 10 provides a discreet, aesthetic and adjustable occultation surface.
  • the sun visor 10 does not "pass" in front of the user's face when it is moved to a position of use. The discomfort associated with the installation of the sun visor 10 is thus reduced and the risk of accident also.
  • the sun visor 10 is partly identical but differs by its connecting mechanism 16 and the receiving means 50 of the support and extension structures 12, 14.
  • the mechanism 16 comprises two distinct pairs of arms 44, 46 hinged to each other.
  • Each pair 92 comprises a support arm 44 and an extension arm 46.
  • Each arm 44, 46 of each pair 92 has a purely rotary rotational end 52 on the receiving means 50 and an opposite end 104 of a purely rotatable articulated connection at the connecting end 94 of the other arm 44. , 46 of the same pair 92.
  • the receiving means 50 comprise pivots 68 receiving the bearing ends 52 in substantially friction-free rotation respectively on the upper half-shell 34 of the extension structure 14 and on the lower half-shell 30 of the support structure 12 .
  • connection ends 94 comprise a bore 96.
  • the bores 96 of the same pair 92 of arms 44, 46 are traversed by a connecting shaft 98.
  • the shaft 98 also passes through a friction ring 100 made of elastomer material mounted between the two connecting joints 94.
  • the two joints 94 are thus in contact with the ring 100. Nevertheless, the ring 100 is for example in all other suitable material.
  • the shaft 98 further comprises two rings 102 on either side of the arms 44, 46.
  • the position of the rings 102 makes it possible to tighten the arms 44, 46 more or less between them.
  • the elastomeric ring 100 is tightened so as to prevent the displacement of the extension structure 14 for a force in the direction XX less than or equal to about 15 N.
  • the ends 52 are preferably located near the longitudinal ends of the support and extension structures 12, 14, as illustrated in FIG. 5. In this way, the mechanism 16 has a more fluid displacement when the force of the user is applied to one end of the extension structure 14.
  • the fabric 22, the reel 24, and the guide slots 78, 80, 82 are identical to those of the first embodiment.
  • Figures 7 and 8 illustrate a third embodiment of the invention, which differs essentially from the other two embodiments by its connecting mechanism 16 and the receiving means 50. Elements similar to the previous embodiments bear the same numbers reference in Figures 7 and 8.
  • the mechanism 16 comprises only two arms 110 hinged together in a purely rotational manner in their middle.
  • the two arms 110 are identical and are arranged one on the other. They together form substantially an X.
  • Each arm 110 is articulated at a first end 112 on the support structure 12 and at a second end 114 opposite to the extension structure 14.
  • the articulation of the first end 112 of one arms 110 is purely rotary while the articulation of the second end 114 of the same arm 110 is slidingly rotating.
  • the articulation of the first end 112 of the other of the arms 110 on the support structure 12 is slidingly rotatable while the articulation of the second end 114 of the same arm 110 on the extension structure 14 is purely rotary.
  • the receiving means 50 of the support and extension structures 12, 14 each comprise a pivot 68 on which is articulated the purely rotary end of an arm 110.
  • the receiving means 50 of one of the The arms are located on the respective lower half-shells while the receiving means 50 of the other arm 110 are located on the respective upper half-shells 34.
  • the arms 110 constitute means of displacement in pure translation of the extension structure 14 relative to the support structure 12, the arms defining the diagonals of a rectangle.
  • the connecting mechanism 16 further comprises means 116 for differential friction in the direction of movement of the extension structure 14 comprising two identical pads 118.
  • Each sliding rotary end of the arms 110 is mounted purely rotatively on one of the shoes 118.
  • Each shoe 118 is itself slidably mounted on a rail 120 of the receiving means 50.
  • the shoe 118 has a groove 122 of which a section substantially forms a U surrounding the rail 120.
  • the groove 122 comprises four flat walls 124 converging two by two to a throat 126 of the groove 122.
  • the width "I" of the constriction 126 is substantially equal to the width of the rail 120. In this way, the groove 122 is slidably and tiltingly mounted on the rail 120, the tilting being effected around its throat 126.
  • the shoe 118 further comprises a friction spring 128 projecting towards a friction surface 130 of the receiving means 50.
  • the surface 130 is parallel to the rail 120.
  • the shoe 118 is tilting between a large friction position in which the spring 128 is pressed into a substantial frictional position against the surface 130 and a low friction position in which the spring 128 is placed only in a position of low friction against the surface 130 or spaced from the surface 130.
  • the articulation with the arm 110 and the constriction 126 are offset by a non-zero distance "d" along the longitudinal axis of the sun visor 10.
  • the pad 118 tilts in its large frictional position.
  • the arm “pulls” on the shoe 118 that is to say when the extension structure 14 is moved to its extended position, the shoe 118 switches to its low friction position.
  • the differential friction means generate low friction, for example, able to counter a stress on the extension structure of less than or equal to 10 N, when the extension structure 14 is moved to its deployed position.
  • the friction generated when the extension structure 14 is returned to its retracted position is important and is for example suitable to counter a force on the extension structure 14 in the X-X direction less than or equal to 15 N.
  • the effort to be applied by the user on the structure 14 to move it to its deployed position is about 7 to 12 Newtons, and to move it towards its retracted position the effort required is also about 7 to 12 Newtons.
  • the perceived quality of the sun visor 10 and its comfort are thus improved.
  • the pad 118 does not necessarily include a groove 122 as described above. It comprises for example a rail, the receiving means 50 comprising a groove receiving the rail sliding and tilting.
  • the rail comprises, for example, an enlarged zone and four walls converging two by two from the extended zone towards the ends of the rail.
  • the link mechanism 116 is substantially identical to that of the first embodiment illustrated in FIGS. 2 and 3, but also comprises the differential friction means of the third embodiment, at the level of the rotary joints. sliding arms 44, 46.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The invention relates to a sun shade (10) including a bearing structure (12), an extension structure (14) mobile in translation relative to the bearing structure (12), and a linking mechanism (16) linking the extension structure (14) with the bearing structure (12) and allowing the translation of the extension structure (14) between retracted position and an extended position. The linking mechanism (16) is such that it extends beyond the bearing structure (12) when the extension structure (14) is in the extended position.

Description

Pare-soleil pour véhicule automobile Sun visor for a motor vehicle
L'invention concerne un pare-soleil pour véhicule automobile, du type comprenant une structure de support, une structure d'extension mobile en translation par rapport à la structure de support, et un mécanisme de liaison reliant la structure d'extension à la structure de support et permettant la translation de la structure d'extension entre une position rétractée et une position déployée.The invention relates to a sun visor for a motor vehicle, of the type comprising a support structure, an extension structure movable in translation relative to the support structure, and a connecting mechanism connecting the extension structure to the structure support and allowing translation of the extension structure between a retracted position and an extended position.
EP-B-O 138 510 décrit un pare-soleil comprenant une structure de support et une structure d'extension mobile en translation par rapport à la structure de support entre une position rétractée à l'intérieur de la structure de support et une position déployée dans laquelle la structure d'extension s'étend en partie à l'extérieur de la structure de support. La structure d'extension comporte un miroir.EP-B-138 510 discloses a sun visor comprising a support structure and an extension structure movable in translation relative to the support structure between a retracted position within the support structure and an extended position in which the extension structure extends partly outside the support structure. The extension structure includes a mirror.
Le pare-soleil comprend également un mécanisme de liaison comprenant une barre d'attache sur la structure de support, une barre d'attache sur la structure d'extension et deux bras reliant les deux barres. Les deux bras sont articulés en leur milieu l'un sur l'autre de manière purement rotative et en forme de X. Les deux bras sont articulés de manière purement rotative sur un même côté des barres et sont articulés rotatifs et coulissants sur un côté opposé des barres. La barre d'attache sur la structure d'extension est montée purement coulissante à l'intérieur de la structure de support. Cependant, la différence de surface d'occultation entre la position déployée et la position rétractée du pare-soleil n'est pas suffisante pour être montée à une traverse de faible largeur.The sun visor also includes a link mechanism comprising an attachment bar on the support structure, an attachment bar on the extension structure and two arms connecting the two bars. The two arms are articulated in their middle on one another in a purely rotational and X-shaped manner. The two arms are articulated in a purely rotary manner on one and the same side of the bars and are articulated to rotate and slide on an opposite side. bars. The attachment bar on the extension structure is mounted purely sliding inside the support structure. However, the difference in the occultation surface between the deployed position and the retracted position of the sun visor is not sufficient to be mounted to a narrow cross member.
Un but de l'invention est d'augmenter la surface d'occultation du pare-soleil lorsque la structure d'extension est déployée. A cet effet, l'invention a pour objet un pare-soleil du type précité, caractérisé en ce que le mécanisme de liaison est tel qu'il s'étend au-delà de la structure de support lorsque la structure d'extension est en position déployée.An object of the invention is to increase the concealment surface of the sun visor when the extension structure is deployed. To this end, the subject of the invention is a sun visor of the aforementioned type, characterized in that the connecting mechanism is such that it extends beyond the support structure when the extension structure is in position. deployed position.
Suivant des modes particuliers de réalisation, le pare-soleil comporte l'une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou suivant toutes les com- binaisons techniquement possibles :According to particular embodiments, the sun visor comprises one or more of the following characteristics, taken in isolation or according to all the technically possible combinations:
- le pare-soleil comprend des moyens d'occultation s'étendant entre la structure de support et la structure d'extension lorsque la structure d'extension est en position déployée, les moyens d'occultation masquant le mécanisme de liaison ;the sun visor comprises occulting means extending between the support structure and the extension structure when the extension structure is in the deployed position, the concealment means masking the connection mechanism;
- les moyens d'occultation comprennent une toile d'occultation et un enrouleur de toile permettant d'ajuster la longueur de la toile à la position de la structure d'extension ; - le mécanisme de liaison comprend deux bras de support articulés sur la structure de support et deux bras d'extension distincts des bras de support, les bras d'extension étant articulés sur la structure d'extension, les bras d'extension étant articulés aux bras de support ; - chaque bras de support est articulé purement rotatif sur la structure de support, chaque bras d'extension étant articulé purement rotatif sur la structure d'extension, et chaque bras de support étant articulé purement rotatif à un seul bras d'extension ;the occultation means comprise an occultation cloth and a canvas winder making it possible to adjust the length of the cloth to the position of the extension structure; the linking mechanism comprises two support arms articulated on the support structure and two extension arms distinct from the support arms, the extension arms being articulated on the extension structure, the extension arms being articulated to the support arm; - Each support arm is articulated purely rotary on the support structure, each extension arm being articulated purely rotary on the extension structure, and each support arm being articulated purely rotary to a single extension arm;
- chaque bras est articulé à un bras de support et à un bras d'extension par mise en prise directe de dents d'engrenage prévues sur une extrémité dentée de chaque bras ;each arm is articulated to a support arm and an extension arm by direct engagement of gear teeth provided on a toothed end of each arm;
- le mécanisme de liaison comprend deux bras rigides articulés entre eux en leur milieu, chaque bras étant articulé à la structure de support et à la structure d'extension à deux extrémités opposées ;- The connecting mechanism comprises two rigid arms articulated together in their middle, each arm being articulated to the support structure and the extension structure at two opposite ends;
- le mécanisme de liaison comprend des moyens de frottement différentiel, les frottements générés par lesdits moyens de frottement lorsque la structure d'extension est déplacée vers sa position déployée étant plus faibles que les frottements générés par lesdits moyens de frottement lorsque la structure d'extension est déplacée vers sa position rétractée ;the connection mechanism comprises differential friction means, the friction generated by said friction means when the extension structure is displaced towards its deployed position being smaller than the friction generated by said friction means when the extension structure is moved to its retracted position;
- lesdits moyens de frottement comprennent au moins un patin monté coulissant sur un rail de l'une de la structure de support et de la structure d'extension, le patin étant en outre monté basculable sur le rail entre une position de faible frottement et une position de frottement important, l'un des bras étant articulé au patin ;said friction means comprise at least one slider slidably mounted on a rail of one of the support structure and of the extension structure, the slider being furthermore pivotable on the rail between a low friction position and a high friction position, one of the arms being articulated to the pad;
- le ou chaque patin mobile comporte une gorge montée coulissante et basculable sur le rail, la gorge entourant le rail, la gorge comportant un étranglement et quatre parois convergeant deux à deux vers l'étranglement.- The or each movable shoe has a groove mounted to slide and tiltable on the rail, the groove surrounding the rail, the groove having a throat and four walls converging two by two to the throat.
L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et se référant aux dessins annexés sur lesquels :The invention will be better understood on reading the description which will follow, given solely by way of example, and referring to the appended drawings in which:
- la figure 1 est une vue schématique en coupe d'une partie d'un véhicule automobile, illustrant un pare-soleil selon l'invention ; - la figure 2 est une vue schématique de dessus avec arrachement partiel d'un pare-soleil selon un premier mode de réalisation, sur laquelle une toile d'occultation n'a pas été représentée pour une meilleure visibilité ;- Figure 1 is a schematic sectional view of a portion of a motor vehicle, illustrating a sun visor according to the invention; - Figure 2 is a schematic top view partially broken away of a sun visor according to a first embodiment, on which a shade screen has not been shown for better visibility;
- la figure 3 est une vue en coupe suivant la ligne I N-111 du pare-soleil de la figure 2, la toile d'occultation étant représentée ; - la figure 4 est une vue agrandie d'un détail IV de la figure 2 ; - la figure 5 est une vue analogue à la figure 2 d'un pare-soleil selon un deuxième mode de réalisation de l'invention ;FIG. 3 is a sectional view along line I-111 of the sun visor of FIG. 2, the occulting fabric being shown; FIG. 4 is an enlarged view of detail IV of FIG. 2; FIG. 5 is a view similar to FIG. 2 of a sun visor according to a second embodiment of the invention;
- la figure 6 est une vue analogue à la figure 3 du pare-soleil de la figure 5 ;FIG. 6 is a view similar to FIG. 3 of the sun visor of FIG. 5;
- la figure 7 est une vue analogue aux figures 3 et 5 d'un pare-soleil selon un troisième mode de réalisation ; et- Figure 7 is a view similar to Figures 3 and 5 of a sun visor according to a third embodiment; and
- la figure 8 est une vue agrandie d'un détail VIII de la figure 7.- Figure 8 is an enlarged view of a detail VIII of Figure 7.
La figure 1 illustre une partie d'un pare-brise 2 avant et d'un toit 4 de véhicule automobile. Dans la suite de la description, les termes "avant" et "arrière" s'entendent par référence à la direction de déplacement du véhicule en marche avant, illustrée par une flèche S sur la figure 1. Le toit 4 comprend une traverse 6 avant longeant le pare-brise 2 et un pavillon vitré 8 à l'arrière de la traverse 6.Figure 1 illustrates a portion of a front windshield 2 and a roof 4 of a motor vehicle. In the remainder of the description, the terms "front" and "rear" are understood by reference to the direction of movement of the vehicle in the forward direction, illustrated by an arrow S in FIG. 1. The roof 4 comprises a front cross member 6 along the windshield 2 and a glazed flag 8 at the rear of the crossbar 6.
Le véhicule comporte un pare-soleil 10 extensible articulé sur la traverse 6. Le pare-soleil 10 est ainsi mobile en rotation entre une position de rangement dans laquelle le pare-soleil 10 est sensiblement parallèle à la traverse 6 et appliqué contre la traverse 6, et une pluralité de positions d'usage dans lesquelles le pare-soleil 10 fournit une surface d'occultation à la lumière provenant du pare-brise 2 ou du pavillon vitré 8.The vehicle comprises an extensible sun visor 10 articulated on the crossbar 6. The sun visor 10 is thus rotatable between a storage position in which the sun visor 10 is substantially parallel to the crossbar 6 and applied against the crossbar 6 , and a plurality of use positions in which the sun visor 10 provides a light concealment surface from the windshield 2 or the glazed flag 8.
Dans la suite de la description, les termes "inférieur" et "supérieur" s'entendent par rapport au pare-soleil 10 dans la position de rangement.In the remainder of the description, the terms "lower" and "upper" refer to the sun visor 10 in the storage position.
Comme illustré sur les figures 1 et 2, le pare-soleil 10 comprend une structure 12 de support articulée à l'arrière sur la traverse 6 et une structure 14 d'extension mobile en translation par rapport à la structure de support 12, suivant une direction X-X, entre une pluralité de positions dont une position rétractée et une position déployée. Comme illustrée en trait continu à la figure 1 , la position rétractée est très compacte, ce qui permet l'utilisation d'une traverse 6 de faible largeur. On peut ainsi maximiser la surface vitrée de pare-brise 2 et/ou du pavillon 8.As illustrated in FIGS. 1 and 2, the sun visor 10 comprises a support structure 12 articulated at the rear on the crossmember 6 and an extension structure 14 that can move in translation relative to the support structure 12, following a direction XX, between a plurality of positions including a retracted position and an extended position. As shown in solid lines in Figure 1, the retracted position is very compact, which allows the use of a cross member 6 of small width. It is thus possible to maximize the glass area of the windshield 2 and / or the roof 8.
Préférentiellement, la structure de support 12 comporte un dispositif de réflexion du type miroir de courtoisie éclairé.Preferably, the support structure 12 comprises a reflection device of the illuminated courtesy mirror type.
Le pare-soleil 10 comporte un mécanisme 16 de liaison reliant les structures de support et d'extension 12, 14. La structure d'extension 14 est uniquement portée par le mécanisme 16.The sun visor 10 comprises a connecting mechanism 16 connecting the support and extension structures 12, 14. The extension structure 14 is carried only by the mechanism 16.
En outre, le pare-soleil 10 comporte des moyens 20 d'occultation de la lumière, illustrés sur la figure 3. Les moyens 20 d'occultation comprennent une toile 22 d'occultation masquant le mécanisme 16 et s'étendant entre les structures 12, 14, et un enrouleur 24 de toile permettant d'ajuster la longueur de la toile 22 à la position de la structure d'extension 14 de telle sorte que la toile 22 est toujours tendue, comme illustré sur la figure 3. La toile 22 s'étend de part et d'autre du mécanisme 16 et l'entoure.In addition, the sun visor 10 comprises means 20 for concealing the light, illustrated in FIG. 3. The means 20 for concealment comprise a mask 22 concealing the mechanism 16 and extending between the structures 12 , 14, and a retractor 24 of fabric for adjusting the length of the fabric 22 to the position of the extension structure 14 so that the fabric 22 is always stretched, as shown in Figure 3. The fabric 22 extends on both sides of the mechanism 16 and surrounds.
Les structures de support et d'extension 12, 14 comprennent respectivement une coque 26 de support et une coque 28 d'extension. Chaque coque 26, 28 est formée de deux demi-coques respectivement inférieure 30 et supérieure 34 sensiblement symétriques l'une par rapport à l'autre et accolées l'une à l'autre (voir figure 3). Les demi- coques 30, 34 sont par exemple collées, soudées et/ou emboîtées l'une avec l'autre. Néanmoins, chaque coque 26, 28 est par exemple d'une seule pièce venue de matière.Support and extension structures 12, 14 respectively comprise a support shell 26 and an extension shell 28. Each shell 26, 28 is formed of two half-shells respectively lower and upper 34 substantially symmetrical with respect to each other and contiguous to each other (see Figure 3). The half-shells 30, 34 are for example glued, welded and / or nested with each other. Nevertheless, each shell 26, 28 is for example a single piece of material.
Les structures 12, 14 ont une même longueur correspondant à la longueur des coques 26, 28, mesurée transversalement à la direction X-X.The structures 12, 14 have the same length corresponding to the length of the shells 26, 28, measured transversely to the X-X direction.
Chaque coque 26, 28 comprend un bord 38 d'extrémité délimitant une bouche 40 vers l'intérieur de la coque 26, 28. Les coques 26, 28 ont une section transversale en forme générale de U. Les U de chaque coque 26, 28 sont tournés l'un vers l'autre et alignés. Ainsi, lorsque la structure d'extension 14 est en position rétractée, les bords 38 des deux coques 26, 28 sont accolés. Les bouches 40 des deux coques 26, 28 ont les mêmes dimensions. Lorsque les coques 26, 28 sont accolées, les bords 38 coïncident et le pare-soleil 10 présente une surface externe sensiblement lisse et continue. En position rétractée, le mécanisme de liaison 16 et la toile 22 sont entièrement à l'intérieur de l'enceinte définie par les deux coques 26, 28. Ils ne sont donc pas visibles.Each shell 26, 28 comprises an end edge 38 delimiting a mouth 40 towards the inside of the shell 26, 28. The shells 26, 28 have a generally U-shaped cross section. The U of each shell 26, 28 are turned towards each other and aligned. Thus, when the extension structure 14 is in the retracted position, the edges 38 of the two shells 26, 28 are contiguous. The mouths 40 of the two shells 26, 28 have the same dimensions. When the shells 26, 28 are contiguous, the edges 38 coincide and the sun visor 10 has a substantially smooth outer surface and continuous. In the retracted position, the connecting mechanism 16 and the fabric 22 are entirely inside the enclosure defined by the two shells 26, 28. They are therefore not visible.
La largeur du pare-soleil 10 en position rétractée, mesurée parallèlement à la direction d'extension X-X, est par exemple comprise entre 80 et 90 mm, de préférence environ égale à 80 mm.The width of the sun visor 10 in the retracted position, measured parallel to the extension direction X-X, is for example between 80 and 90 mm, preferably about 80 mm.
Lorsque la structure d'extension 14 est en position déployée, les bords 38 des deux coques 26, 28 sont espacés suivant la direction X-X. La largeur du pare-soleil 10 en position déployée est par exemple comprise entre 160 et 190 mm, de préférence environ égale à 160 mm.When the extension structure 14 is in the deployed position, the edges 38 of the two shells 26, 28 are spaced in the direction X-X. The width of the sun visor 10 in the extended position is for example between 160 and 190 mm, preferably approximately equal to 160 mm.
Le mécanisme de liaison 16 relie les coques de support et d'extension 26, 28.The linking mechanism 16 connects the support and extension shells 26, 28.
Dans un premier mode de réalisation illustré sur les figures 2 et 3, le mécanisme 16 comprend quatre bras 44, 46 de même longueur dont deux bras 44 de support en appui sur la structure de support 12 et deux bras 46 d'extension en appui sur la structure d'extension 14. A cet effet, les structures de support et d'extension 12, 14 comprennent des moyens 50 de réception des bras 44, 46.In a first embodiment illustrated in FIGS. 2 and 3, the mechanism 16 comprises four arms 44, 46 of the same length, including two support arms 44 bearing on the support structure 12 and two extension arms 46 resting on the extension structure 14. For this purpose, the support and extension structures 12, 14 comprise means 50 for receiving the arms 44, 46.
Chaque bras 44, 46 comporte une extrémité 52 d'appui articulée sur les moyens de réception 50 et une extrémité 54 dentée opposée à l'extrémité d'appui 52 et corn- prenant une couronne dentée 56. Les couronnes dentées 56 des quatre bras 44, 46 comprennent des dents 58 et sont engrenées les unes avec les autres par mise en prise des dents 58, comme illustré sur les figures 2 et 4. A cet effet, le mécanisme 16 comporte un socle 60 de serrage portant les quatre extrémités 54 de manière purement rotative.Each arm 44, 46 has a bearing end 52 hinged to the receiving means 50 and a toothed end 54 opposite the bearing end 52 and The toothed rings 56 of the four arms 44, 46 comprise teeth 58 and are engaged with each other by engagement of the teeth 58, as illustrated in FIGS. 2 and 4. mechanism 16 comprises a clamping base 60 carrying the four ends 54 in a purely rotary manner.
Le socle 60 comprend un demi-socle 62 inférieur muni de quatre tiges 64 faisant saillie vers un demi-socle supérieur (non représenté) et traversant chacune un alésage 66 d'un bras 44, 46 respectif, les quatre tiges 64 étant disposées aux quatre coins d'un carré. Les dents 58 de chaque bras 44, 46 sont en prise directe avec les dents 58 d'un bras d'extension 46 et avec les dents 58 d'un bras de support 44. Ainsi, une rotation de l'un des bras 44, 46 autour de la tige 64 associée du socle 60 d'un angle non orienté entraîne une rotation de chacun des bras 44, 46 autour de sa tige 64 associée d'un même angle. Le demi-socle supérieur est par exemple vissé sur le demi-socle inférieur 62. Les frottements du socle 60 sur les extrémités dentées 56 des bras 44, 46 sont réglés en serrant plus ou moins le demi-socle supérieur sur le demi-socle inférieur 62.The base 60 comprises a lower half-pedestal 62 provided with four rods 64 projecting towards an upper half-pedestal (not shown) and each through a bore 66 of a respective arm 44, 46, the four rods 64 being arranged at the four corners of a square. The teeth 58 of each arm 44, 46 are in direct contact with the teeth 58 of an extension arm 46 and with the teeth 58 of a support arm 44. Thus, a rotation of one of the arms 44, 46 around the associated rod 64 of the base 60 of an undirected angle causes a rotation of each of the arms 44, 46 around its rod 64 associated at the same angle. The upper half-base is for example screwed on the lower half-base 62. The friction of the base 60 on the toothed ends 56 of the arms 44, 46 are adjusted by tightening more or less the upper half-base on the lower half-base 62.
Les extrémités d'appui 52 d'un bras de support 44 et d'un bras d'extension 46 adjacents entre eux sont montées purement rotatives sur respectivement la structure de support 12 et la structure d'extension 14. A cet effet, les moyens de réception 50 com- portent chacun un pivot 68.The bearing ends 52 of a support arm 44 and an extension arm 46 adjacent to each other are mounted purely rotatably on the support structure 12 and the extension structure 14 respectively. For this purpose, the means 50 are each equipped with a pivot 68.
Les extrémités d'appui 52 de l'autre bras de support 44 et de l'autre bras d'extension 46 sont articulés rotatives coulissantes sur respectivement la structure de support 12 et la structure d'extension 14. A cet effet, les moyens de réception 50 comportent un rail 70 de coulissement sur chacune des structures de support et d'extension 12, 14, l'extrémité d'appui 52 du bras 44, 46 étant articulée purement rotative sur un profilé 72 en I lui-même monté purement coulissant dans le rail 70.The bearing ends 52 of the other support arm 44 and of the other extension arm 46 are rotatably articulated sliding respectively on the support structure 12 and the extension structure 14. For this purpose, the support means reception 50 comprise a slide rail 70 on each of the support and extension structures 12, 14, the support end 52 of the arm 44, 46 being articulated purely rotary on a profile 72 in I itself mounted purely sliding in the rail 70.
Les articulations des extrémités d'appui 52 sont sensiblement sans frottement. Les bras 44, 46 articulés purement rotatifs sont d'un même côté, c'est-à-dire qu'ils sont adjacents et sont engrenés directement l'un avec l'autre. Les bras 44, 46 ar- ticulés rotatifs coulissants sont du côté opposé et sont engrenés directement l'un avec l'autre.The joints of the bearing ends 52 are substantially frictionless. The purely rotatable hinged arms 44, 46 are on the same side, i.e. they are adjacent and are meshed directly with each other. The sliding rotary arms 44, 46 are on the opposite side and engage directly with each other.
Chaque bras 44, 46 est articulé directement ou indirectement à chacun des autres bras 44, 46. Ainsi, en cas d'appui par l'utilisateur sur une extrémité de la coque 28, les efforts sont transmis à l'ensemble des bras 44, 46. De cette manière, le déplace- ment des bras 44, 46 est fluide et ne risque pas de se bloquer. L'enrouleur 24 est monté sur la structure de support 12, à l'intérieur de la coque 26.Each arm 44, 46 is articulated directly or indirectly to each of the other arms 44, 46. Thus, in the event of support by the user on one end of the shell 28, the forces are transmitted to the set of arms 44, 46. In this way, the movement of the arms 44, 46 is fluid and will not become blocked. The reel 24 is mounted on the support structure 12, inside the shell 26.
La toile 22 a une largeur mesurée perpendiculairement à la direction d'extensionThe fabric 22 has a width measured perpendicular to the direction of extension
X-X légèrement inférieure à la longueur des structures de support et d'extension 12, 14. La toile 22 comporte une première extrémité 74 fixée sur l'enrouleur 24 et une deuxième extrémité 76 fixée sur l'intérieur de la coque 26. La structure 12 comporte, à l'intérieur de la coque 26, sur la demi-coque supérieure 34, une fente 78 de guidage longeant le bord, tandis que la structure d'extension 14 comporte des fentes supérieureXX slightly less than the length of the support structures and extension 12, 14. The fabric 22 has a first end 74 fixed on the reel 24 and a second end 76 fixed on the inside of the shell 26. The structure 12 comprises, inside the shell 26, on the upper half-shell 34, a guide slot 78 along the edge, while the extension structure 14 has upper slots
80 et inférieure 82 de guidage sur respectivement les structures de support et d'extension 12, 14.80 and lower 82 guide respectively on the support and extension structures 12, 14.
En partant de la première extrémité 74, la toile 22 traverse la fente 78, puis la fente 80, avant de faire un demi-tour autour d'un tube 84 et de traverser la fente 82. Elle rejoint ensuite la structure de support 12 au niveau de sa deuxième extrémité 76. La toile 22 forme ainsi deux tronçons supérieur 86 et inférieur 88 parallèles. Les tronçons 86, 88 s'étendent de part et d'autre des bras 44, 46.Starting from the first end 74, the fabric 22 passes through the slot 78, then the slot 80, before making a half-turn around a tube 84 and through the slot 82. It then joins the support structure 12 to level of its second end 76. The fabric 22 thus forms two upper sections 86 and lower 88 parallel. The sections 86, 88 extend on either side of the arms 44, 46.
La toile 22 est réalisée dans un tissu approprié à l'occultation de la lumière du soleil, par exemple du type occulteur de pavillon vitré 8 ou de panneau de porte.The fabric 22 is made of a fabric suitable for the occultation of sunlight, for example of the glazed roof shade type 8 or door panel.
L'enrouleur 24 comporte un arbre 90 d'enroulement monté rotatif sur l'intérieur de la coque 26 et un ressort de torsion (non représenté) générant en permanence un couple sur l'arbre 90 de façon à exercer une tension sur la toile 22. L'effort de traction généré par l'enrouleur 24 sur la toile 22 est par exemple environ 5 Newtons lorsque la structure d'extension 14 est dans la position rétractée et environ 10 Newtons lorsque la structure d'extension 14 est dans la position déployée.The winder 24 comprises a winding shaft 90 rotatably mounted on the inside of the shell 26 and a torsion spring (not shown) permanently generating a torque on the shaft 90 so as to exert tension on the fabric 22 The tensile force generated by the winder 24 on the fabric 22 is for example about 5 Newtons when the extension structure 14 is in the retracted position and about 10 Newtons when the extension structure 14 is in the deployed position. .
La toile 22 étant solidaire de la structure de support 12 et la toile 22 appuyant sur le tube 84, l'enrouleur 24 génère, par l'intermédiaire de la toile 22, un effort de traction sur la structure d'extension 14 égale à l'effort de traction de l'enrouleur 24 sur la toileThe fabric 22 being secured to the support structure 12 and the fabric 22 pressing on the tube 84, the winder 24 generates, via the fabric 22, a tensile force on the extension structure 14 equal to the tensile force of the retractor 24 on the canvas
22, soit entre environ 5 et 10 Newtons. L'enrouleur 24 tend donc à ramener la structure22, or between about 5 and 10 Newtons. The retractor 24 therefore tends to reduce the structure
14 vers sa position rétractée.14 to its retracted position.
La structure d'extension 14, du fait de sa masse et des mouvements verticaux du véhicule, peut avoir à supporter une accélération allant jusqu'à environ 3 G, ce qui peut représenter environ 5 N dans l'exemple illustré.The extension structure 14, because of its mass and the vertical movements of the vehicle, may have to withstand an acceleration of up to about 3 G, which can be about 5 N in the example shown.
Pour assurer la stabilité de la position de la structure d'extension 14, le socle 60 doit générer des efforts de frottement suffisants pour contrer la combinaison des efforts décrits ci-dessus. Le socle 60 est ainsi par exemple serré de manière à empêcher le déplacement de la structure d'extension 14 pour un effort suivant la direction X-X inférieur ou égal à environ 15 N.To ensure the stability of the position of the extension structure 14, the base 60 must generate sufficient friction forces to counter the combination of forces described above. The base 60 is thus for example tightened so as to prevent the displacement of the extension structure 14 for a force along the direction XX less than or equal to about 15 N.
Pour déplacer la structure d'extension 14 vers sa position déployée, l'utilisateur devra donc générer un effort suivant la direction X-X compris entre 20 et 30 N pour contrer la combinaison des efforts de l'enrouleur 24 et des efforts de frottement. Pour déplacer la structure d'extension 14 vers sa position rétractée, l'utilisateur devra en revanche générer un effort suivant la direction X-X compris entre 5 et 10 N, les efforts de l'enrouleur 24 aidant au déplacement vers la position rétractée.To move the extension structure 14 to its deployed position, the user will have to generate a force in the X-X direction between 20 and 30 N to counter the combination of efforts of the reel 24 and friction forces. To move the extension structure 14 to its retracted position, the user will instead generate a force in the X-X direction between 5 and 10 N, the forces of the retractor 24 assisting the displacement to the retracted position.
Le mécanisme de liaison 16 est propre à maintenir la structure d'extension 14 dans l'une quelconque des positions comprises entre les positions déployées et rétractées.The link mechanism 16 is adapted to maintain the extension structure 14 in any of the positions between the deployed and retracted positions.
L'enrouleur 24 n'est pas nécessairement situé sur la structure de support 12, il est par exemple sur la structure d'extension 14.The reel 24 is not necessarily located on the support structure 12, it is for example on the extension structure 14.
Dans l'invention, le mécanisme de liaison 16 s'étendant au moins partiellement au-delà de la structure de support 12 lorsque la structure d'extension 14 est en position déployée, la structure d'extension 14 a des dimensions indépendantes de la structure de support 12, c'est-à-dire que dans le plan de déplacement de la structure d'extension, le mécanisme s'étend entre les structures 12 et 14. Ici, les longueurs des deux structures 12, 14 sont identiques, ce qui ne serait pas possible si le mécanisme de liaison ne s'étendait pas au-delà de la structure de support 12 comme expliqué ci-dessus. Le pare-soleil 10 forme, grâce à cette caractéristique particulière de l'invention, sensiblement un rectangle et ce quelque soit la position de la structure d'extension 14. La surface d'occultation formée en position déployée est importante.In the invention, the link mechanism 16 extending at least partially beyond the support structure 12 when the extension structure 14 is in the deployed position, the extension structure 14 has dimensions independent of the structure 12, that is to say that in the plane of displacement of the extension structure, the mechanism extends between the structures 12 and 14. Here, the lengths of the two structures 12, 14 are identical; which would not be possible if the linking mechanism did not extend beyond the support structure 12 as explained above. The sun visor 10 forms, thanks to this particular feature of the invention, substantially a rectangle and whatever the position of the extension structure 14. The occulting surface formed in the deployed position is important.
En outre, la largeur du pare-soleil 10 en position rétractée de la structure d'extension 14 est faible et l'encombrement du pare-soleil 10 est faible.In addition, the width of the sun visor 10 in the retracted position of the extension structure 14 is small and the size of the sun visor 10 is small.
Le pare-soleil 10 fournit une surface d'occultation discrète, esthétique et réglable.The sun visor 10 provides a discreet, aesthetic and adjustable occultation surface.
En outre, du fait de son articulation sur le toit 4 à l'arrière de la structure de support 12, le pare-soleil 10 ne "passe" pas devant le visage de l'utilisateur lorsqu'il est déplacé vers une position d'usage. La gêne liée à la mise en place du pare-soleil 10 est ainsi réduite et les risques d'accident également.In addition, because of its articulation on the roof 4 at the rear of the support structure 12, the sun visor 10 does not "pass" in front of the user's face when it is moved to a position of use. The discomfort associated with the installation of the sun visor 10 is thus reduced and the risk of accident also.
Un deuxième mode de réalisation est illustré sur les figures 5 et 6, où les références aux éléments semblables ont été conservées.A second embodiment is illustrated in Figures 5 and 6, where references to similar elements have been retained.
Le pare-soleil 10 est en partie identique mais diffère par son mécanisme de liaison 16 et les moyens de réception 50 des structures de support et d'extension 12, 14. Le mécanisme 16 comprend deux paires 92 distinctes de bras 44, 46 articulés entre eux l'un sur l'autre. Chaque paire 92 comprend un bras de support 44 et un bras d'extension 46.The sun visor 10 is partly identical but differs by its connecting mechanism 16 and the receiving means 50 of the support and extension structures 12, 14. The mechanism 16 comprises two distinct pairs of arms 44, 46 hinged to each other. Each pair 92 comprises a support arm 44 and an extension arm 46.
Chaque bras 44, 46 de chaque paire 92 comporte une extrémité d'appui 52 arti- culée purement rotative sur les moyens de réception 50 et une extrémité 94 opposée de liaison articulée purement rotative à l'extrémité de liaison 94 de l'autre bras 44, 46 de la même paire 92.Each arm 44, 46 of each pair 92 has a purely rotary rotational end 52 on the receiving means 50 and an opposite end 104 of a purely rotatable articulated connection at the connecting end 94 of the other arm 44. , 46 of the same pair 92.
Les moyens de réception 50 comportent des pivots 68 recevant les extrémités d'appui 52 en rotation sensiblement sans frottement respectivement sur la demi-coque supérieure 34 de la structure d'extension 14 et sur la demi-coque inférieure 30 de la structure de support 12.The receiving means 50 comprise pivots 68 receiving the bearing ends 52 in substantially friction-free rotation respectively on the upper half-shell 34 of the extension structure 14 and on the lower half-shell 30 of the support structure 12 .
Les extrémités de liaison 94 comportent un alésage 96. Les alésages 96 d'une même paire 92 de bras 44, 46 sont traversés par un arbre 98 de liaison. De cette manière, les bras 44, 46 sont articulés l'un sur l'autre purement rotatifs. L'arbre 98 traverse également un anneau 100 de frottement en matériau élasto- mère monté entre les deux articulations de liaison 94. Les deux articulations 94 sont ainsi au contact de l'anneau 100. Néanmoins, l'anneau 100 est par exemple dans tout autre matériau approprié.The connection ends 94 comprise a bore 96. The bores 96 of the same pair 92 of arms 44, 46 are traversed by a connecting shaft 98. In this way, the arms 44, 46 are hinged to each other purely rotary. The shaft 98 also passes through a friction ring 100 made of elastomer material mounted between the two connecting joints 94. The two joints 94 are thus in contact with the ring 100. Nevertheless, the ring 100 is for example in all other suitable material.
L'arbre 98 comporte en outre deux bagues 102 de part et d'autre des bras 44, 46. La position des bagues 102 permet de serrer plus ou moins les bras 44, 46 entre eux.The shaft 98 further comprises two rings 102 on either side of the arms 44, 46. The position of the rings 102 makes it possible to tighten the arms 44, 46 more or less between them.
Pour les mêmes raisons que dans le premier mode de réalisation, l'anneau 100 élastomère est serré de manière à empêcher le déplacement de la structure d'extension 14 pour un effort suivant la direction X-X inférieur ou égal à environ 15 N. Les extrémités d'appui 52 sont de préférence situées à proximité des extrémités longitudinales des structures de support et d'extension 12, 14, comme illustré sur la figure 5. De cette manière, le mécanisme 16 a un déplacement plus fluide lorsque l'effort de l'utilisateur est appliqué sur une extrémité de la structure d'extension 14.For the same reasons as in the first embodiment, the elastomeric ring 100 is tightened so as to prevent the displacement of the extension structure 14 for a force in the direction XX less than or equal to about 15 N. The ends 52 are preferably located near the longitudinal ends of the support and extension structures 12, 14, as illustrated in FIG. 5. In this way, the mechanism 16 has a more fluid displacement when the force of the user is applied to one end of the extension structure 14.
La toile 22, l'enrouleur 24, et les fentes de guidage 78, 80, 82 sont identiques à ceux du premier mode de réalisation.The fabric 22, the reel 24, and the guide slots 78, 80, 82 are identical to those of the first embodiment.
Les figures 7 et 8 illustrent un troisième mode de réalisation de l'invention, qui diffère essentiellement des deux autres modes de réalisation par son mécanisme de liaison 16 et les moyens de réception 50. Les éléments semblables aux précédents modes de réalisation portent les mêmes numéros de référence sur les figures 7 et 8. Dans ce troisième mode de réalisation, le mécanisme 16 comporte uniquement deux bras 110 articulés entre eux de manière purement rotative en leur milieu. Les deux bras 110 sont identiques et sont disposés l'un sur l'autre. Ils forment ensemble sensiblement un X. Chaque bras 110 est articulé à une première extrémité 112 sur la structure de support 12 et à une deuxième extrémité 114 opposée sur la structure d'extension 14. L'articulation de la première extrémité 112 de l'un des bras 110 est purement rotative tandis que l'articulation de la deuxième extrémité 114 du même bras 110 est rotative coulissante. L'articulation de la première extrémité 112 de l'autre des bras 110 sur la structure de support 12 est rotative coulissante tandis que l'articulation de la deuxième extrémité 114 du même bras 110 sur la structure d'extension 14 est purement rotative. A cet effet, les moyens de réception 50 des structures de support et d'extension 12, 14 comportent chacun un pivot 68 sur lequel est articulé l'extrémité purement rotative d'un bras 110. Les moyens de réception 50 de l'un des bras sont situés sur les demi-coques inférieures 30 respectives tandis que les moyens de réception 50 de l'autre des bras 110 sont situés sur les demi-coques supérieures 34 respectives.Figures 7 and 8 illustrate a third embodiment of the invention, which differs essentially from the other two embodiments by its connecting mechanism 16 and the receiving means 50. Elements similar to the previous embodiments bear the same numbers reference in Figures 7 and 8. In this third embodiment, the mechanism 16 comprises only two arms 110 hinged together in a purely rotational manner in their middle. The two arms 110 are identical and are arranged one on the other. They together form substantially an X. Each arm 110 is articulated at a first end 112 on the support structure 12 and at a second end 114 opposite to the extension structure 14. The articulation of the first end 112 of one arms 110 is purely rotary while the articulation of the second end 114 of the same arm 110 is slidingly rotating. The articulation of the first end 112 of the other of the arms 110 on the support structure 12 is slidingly rotatable while the articulation of the second end 114 of the same arm 110 on the extension structure 14 is purely rotary. For this purpose, the receiving means 50 of the support and extension structures 12, 14 each comprise a pivot 68 on which is articulated the purely rotary end of an arm 110. The receiving means 50 of one of the The arms are located on the respective lower half-shells while the receiving means 50 of the other arm 110 are located on the respective upper half-shells 34.
Les bras 110 constituent des moyens de déplacement en translation pure de la structure d'extension 14 par rapport à la structure de support 12, les bras définissant les diagonales d'un rectangle. Le mécanisme de liaison 16 comporte en outre des moyens 116 de frottement différentiel suivant le sens de déplacement de la structure d'extension 14 comprenant deux patins 118 identiques.The arms 110 constitute means of displacement in pure translation of the extension structure 14 relative to the support structure 12, the arms defining the diagonals of a rectangle. The connecting mechanism 16 further comprises means 116 for differential friction in the direction of movement of the extension structure 14 comprising two identical pads 118.
Chaque extrémité rotative coulissante des bras 110 est montée purement rotative sur l'un des patins 118. Chaque patin 118 est lui-même monté coulissant sur un rail 120 des moyens de réception 50. A cet effet, le patin 118 comporte une gorge 122 dont une section forme sensiblement un U entourant le rail 120. La gorge 122 comprend quatre parois 124 planes convergeant deux à deux vers un étranglement 126 de la gorge 122. La largeur « I » de l'étranglement 126 est sensiblement égale à la largeur du rail 120. De cette façon, la gorge 122 est montée coulissante et basculante sur le rail 120, le basculement s'effectuant autour de son étranglement 126.Each sliding rotary end of the arms 110 is mounted purely rotatively on one of the shoes 118. Each shoe 118 is itself slidably mounted on a rail 120 of the receiving means 50. For this purpose, the shoe 118 has a groove 122 of which a section substantially forms a U surrounding the rail 120. The groove 122 comprises four flat walls 124 converging two by two to a throat 126 of the groove 122. The width "I" of the constriction 126 is substantially equal to the width of the rail 120. In this way, the groove 122 is slidably and tiltingly mounted on the rail 120, the tilting being effected around its throat 126.
Le patin 118 comporte en outre un ressort 128 de frottement faisant saillie vers une surface 130 de frottement des moyens de réception 50. La surface 130 est parallèle au rail 120. Le patin 118 est basculant entre une position de frottement important dans laquelle le ressort 128 est plaqué dans une position de frottement important contre la surface 130 et une position de faible frottement dans laquelle le ressort 128 est pla- que dans une position de faible frottement contre de la surface 130 ou espacé de la surface 130.The shoe 118 further comprises a friction spring 128 projecting towards a friction surface 130 of the receiving means 50. The surface 130 is parallel to the rail 120. The shoe 118 is tilting between a large friction position in which the spring 128 is pressed into a substantial frictional position against the surface 130 and a low friction position in which the spring 128 is placed only in a position of low friction against the surface 130 or spaced from the surface 130.
L'articulation avec le bras 110 et l'étranglement 126 sont décalés d'une distance « d » non nulle suivant l'axe longitudinal du pare-soleil 10. Ainsi, lorsque le bras 110 "appuie" sur le patin 118, c'est-à-dire lorsque la structure d'extension 14 est déplacée vers sa position rétractée, le patin 118 bascule dans sa position de frottement important. Lorsque le bras « tire » sur le patin 118, c'est-à-dire lorsque la structure d'extension 14 est déplacée vers sa position déployée, le patin 118 bascule vers sa position de faible frottement. Les moyens de frottement différentiel génèrent des frottements faibles, par exemple propres à contrer un effort sur la structure d'extension inférieur ou égal à 10 N, lorsque la structure d'extension 14 est déplacée vers sa position déployée. Les frottements générés lorsque la structure d'extension 14 est ramenée vers sa position rétractée sont importants et sont par exemple propres à contrer un effort sur la structure d'extension 14 suivant la direction X-X inférieur ou égal à 15 N.The articulation with the arm 110 and the constriction 126 are offset by a non-zero distance "d" along the longitudinal axis of the sun visor 10. Thus, when the arm 110 "bears" on the pad 118, that is, when the extension structure 14 is moved to its retracted position, the pad 118 tilts in its large frictional position. When the arm "pulls" on the shoe 118, that is to say when the extension structure 14 is moved to its extended position, the shoe 118 switches to its low friction position. The differential friction means generate low friction, for example, able to counter a stress on the extension structure of less than or equal to 10 N, when the extension structure 14 is moved to its deployed position. The friction generated when the extension structure 14 is returned to its retracted position is important and is for example suitable to counter a force on the extension structure 14 in the X-X direction less than or equal to 15 N.
Du fait de l'action combinée des moyens 116 et de l'enrouleur 24, l'effort que doit appliquer l'utilisateur sur la structure 14 pour la déplacer vers sa position déployée est d'environ 7 à 12 Newtons, et pour la déplacer vers sa position rétractée l'effort nécessaire est également d'environ 7 à 12 Newtons. La qualité perçue du pare-soleil 10 et son confort sont ainsi améliorés.Due to the combined action of the means 116 and the reel 24, the effort to be applied by the user on the structure 14 to move it to its deployed position is about 7 to 12 Newtons, and to move it towards its retracted position the effort required is also about 7 to 12 Newtons. The perceived quality of the sun visor 10 and its comfort are thus improved.
Le patin 118 ne comporte pas nécessairement une gorge 122 telle que décrite ci- dessus. Il comprend par exemple un rail, les moyens de réception 50 comprenant une gorge recevant le rail en coulissement et en basculement. Le rail comprend par exemple une zone élargie et quatre parois convergeant deux à deux à partir de la zone élar- gie vers les extrémités du rail.The pad 118 does not necessarily include a groove 122 as described above. It comprises for example a rail, the receiving means 50 comprising a groove receiving the rail sliding and tilting. The rail comprises, for example, an enlarged zone and four walls converging two by two from the extended zone towards the ends of the rail.
Dans un quatrième mode de réalisation, le mécanisme de liaison 116 est sensiblement identique à celui du premier mode de réalisation illustré sur les figures 2 et 3, mais comprend en outre les moyens de frottement différentiel du troisième mode de réalisation, au niveau des articulations rotatives coulissantes des bras 44, 46. In a fourth embodiment, the link mechanism 116 is substantially identical to that of the first embodiment illustrated in FIGS. 2 and 3, but also comprises the differential friction means of the third embodiment, at the level of the rotary joints. sliding arms 44, 46.

Claims

REVENDICATIONS
1.- Pare-soleil (10) pour véhicule automobile, du type comprenant une structure (12) de support, une structure (14) d'extension mobile en translation par rapport à la structure de support (12), et un mécanisme (16) de liaison reliant la structure d'extension (14) à la structure de support (12) et permettant la translation de la structure d'extension (14) entre une position rétractée et une position déployée, caractérisé en ce que le mécanisme de liaison(16) est tel qu'il s'étend au-delà de la structure de support (12) lorsque la structure d'extension (14) est en position déployée.1. Sun visor (10) for a motor vehicle, of the type comprising a support structure (12), an extension structure (14) movable in translation relative to the support structure (12), and a mechanism ( 16) connecting the extension structure (14) to the support structure (12) and allowing the translation of the extension structure (14) between a retracted position and an extended position, characterized in that the link (16) is such that it extends beyond the support structure (12) when the extension structure (14) is in the deployed position.
2.- Pare-soleil (10) selon la revendication 1 , caractérisé en ce que le mécanisme de liaison (16) comprend des moyens (116) de frottement différentiel, les frottements générés par lesdits moyens de frottement (116) lorsque la structure d'extension (14) est déplacée vers sa position déployée étant plus faibles que les frottements générés par lesdits moyens de frottement (116) lorsque la structure d'extension (14) est déplacée vers sa position rétractée. 2. Sun visor (10) according to claim 1, characterized in that the connecting mechanism (16) comprises means (116) of differential friction, the friction generated by said friction means (116) when the structure of extension (14) is moved to its deployed position being smaller than the friction generated by said friction means (116) when the extension structure (14) is moved to its retracted position.
3.- Pare-soleil (10) selon la revendication 2, caractérisé en ce que lesdits moyens de frottement (116) comprennent au moins un patin (118) monté coulissant sur un rail (120) de l'une de la structure de support (12) et de la structure d'extension (14), le patin (118) étant en outre monté basculable sur le rail (120) entre une position de faible frottement et une position de frottement important. 3. Sun visor (10) according to claim 2, characterized in that said friction means (116) comprise at least one pad (118) slidably mounted on a rail (120) of one of the support structure (12) and the extension structure (14), the pad (118) being further pivotably mounted on the rail (120) between a low friction position and a large frictional position.
4.- Pare-soleil (10) selon la revendication 3, caractérisé en ce que le ou chaque patin (118) mobile comporte une gorge (122) montée coulissante et basculable sur le rail (120), la gorge (122) entourant le rail (120), la gorge (122) comportant un étranglement (126) et quatre parois (124) convergeant deux à deux vers l'étranglement (126). 4. Sun visor (10) according to claim 3, characterized in that the or each sliding shoe (118) comprises a groove (122) slidably mounted and tiltable on the rail (120), the groove (122) surrounding the rail (120), the groove (122) having a constriction (126) and four walls (124) converging two by two toward the constriction (126).
5.- Pare-soleil (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le pare-soleil (10) comprend des moyens d'occultation (20) s'étendant entre la structure de support (12) et la structure d'extension (14) lorsque la structure d'extension (14) est en position déployée, les moyens d'occultation (20) masquant le mécanisme de liaison(16).5. Sun visor (10) according to any one of the preceding claims, characterized in that the sun visor (10) comprises occulting means (20) extending between the support structure (12) and the extension structure (14) when the extension structure (14) is in the deployed position, the concealment means (20) masking the connecting mechanism (16).
6.- Pare-soleil (10) selon la revendication 5, caractérisé en ce que les moyens d'occultation (20) comprennent une toile (22) d'occultation et un enrouleur (24) de toile (22) permettant d'ajuster la longueur de la toile (22) à la position de la structure d'extension (14).6. Sun visor (10) according to claim 5, characterized in that the occulting means (20) comprise a canvas (22) for concealment and a retractor (24) of fabric (22) to adjust the length of the fabric (22) at the position of the extension structure (14).
7.- Pare-soleil (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le mécanisme de liaison (16) comprend deux bras (44) de support articulés sur la structure de support (12) et deux bras (46) d'extension distincts des bras de support (44), les bras d'extension (46) étant articulés sur la structure de support (44), les bras d'extension (46) étant articulés sur la structure d'extension (14), les bras d'extension (46) étant articulés aux bras de support (44).7. Sun visor (10) according to any one of the preceding claims, characterized in that the connecting mechanism (16) comprises two support arms (44) articulated on the support structure (12) and two arms ( 46) extending from the support arms (44), the extension arms (46) being hinged to the structure support member (44), the extension arms (46) being hinged to the extension structure (14), the extension arms (46) being articulated to the support arms (44).
8.- Pare-soleil (10) selon la revendication 7, caractérisé en ce que chaque bras (44) de support est articulé purement rotatif sur la structure de support (12), chaque bras d'extension (46) étant articulé purement rotatif sur la structure d'extension (14), et chaque bras de support (44) étant articulé purement rotatif à un seul bras d'extension (46).8. Sun visor (10) according to claim 7, characterized in that each support arm (44) is articulated purely rotary on the support structure (12), each extension arm (46) being articulated purely rotary on the extension structure (14), and each support arm (44) being hinged purely rotary to a single extension arm (46).
9.- Pare-soleil (10) selon la revendication 7, caractérisé en ce que chaque bras (44, 46) est articulé à un bras de support (44) et à un bras d'extension (46) par mise en prise de dents (58) d'engrenage prévues sur une extrémité (54) dentée de chaque bras (44, 46).9. Sun visor (10) according to claim 7, characterized in that each arm (44, 46) is articulated to a support arm (44) and to an extension arm (46) by engagement with gear teeth (58) provided on a toothed end (54) of each arm (44, 46).
10.- Pare-soleil (10) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le mécanisme de liaison (16) comprend deux bras rigides (110) articulés entre eux en leur milieu, chaque bras (110) étant articulé à la structure de support (12) et à la structure d'extension (14) à deux extrémités opposées (112, 114). 10. Sun visor (10) according to any one of claims 1 to 6, characterized in that the connecting mechanism (16) comprises two rigid arms (110) hinged together in their middle, each arm (110). being articulated to the support structure (12) and the extension structure (14) at two opposite ends (112, 114).
EP08788113A 2007-04-18 2008-04-03 Sun shade for automobile Withdrawn EP2137017A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0754547A FR2915139B1 (en) 2007-04-18 2007-04-18 SUNSCREEN FOR MOTOR VEHICLE.
PCT/FR2008/050589 WO2008145879A1 (en) 2007-04-18 2008-04-03 Sun shade for automobile

Publications (1)

Publication Number Publication Date
EP2137017A1 true EP2137017A1 (en) 2009-12-30

Family

ID=38668836

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Application Number Title Priority Date Filing Date
EP08788113A Withdrawn EP2137017A1 (en) 2007-04-18 2008-04-03 Sun shade for automobile

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EP (1) EP2137017A1 (en)
FR (1) FR2915139B1 (en)
WO (1) WO2008145879A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2940193B1 (en) * 2008-12-22 2011-02-04 Peugeot Citroen Automobiles Sa SUN VISOR OF MOTOR VEHICLE AND VEHICLE THEREFOR
FR2943954B1 (en) * 2009-04-03 2011-04-08 Peugeot Citroen Automobiles Sa EXTENSIBLE SUN SHIELD OF MOTOR VEHICLE.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4486819A (en) 1983-10-03 1984-12-04 Prince Corporation Vehicle visor lighting apparatus
FR2588307B1 (en) * 1985-10-04 1987-12-31 Farnier & Penin MOTORIZED SCREEN DEVICE
EP1769954B1 (en) * 2005-09-30 2009-08-05 Wagon Sas Sun visor device for a vehicle's windshield, with a roller blind, and corresponding vehicle
DE202006008039U1 (en) * 2006-05-19 2006-07-27 B & T Exact Gmbh Roller blind especially for vehicle has friction elements to hold the stabilizing struts in the selected positions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008145879A1 *

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Publication number Publication date
FR2915139B1 (en) 2011-07-29
FR2915139A1 (en) 2008-10-24
WO2008145879A1 (en) 2008-12-04

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