WO2013030474A1 - Motor vehicle sun screen - Google Patents

Abstract

The invention relates to a sun screen (10) for a motor vehicle, comprising on the one hand a roll-up blind comprising a block-out screen panel (11) mounted on a winder (12) allowing the screen panel to be unwound in a longitudinal direction (X) from a wound-up position, and on the other hand a device for the translation guidance of the screen panel in the longitudinal direction comprising two guide way elements positioned in the longitudinal direction and each configured to collaborate in sliding with at least one engagement element (16) borne by the screen panel, and offset in a lateral direction (Y) so as laterally to flank the screen panel and guide it along the longitudinal edges thereof irrespective of the unwound position, the sun screen being characterized in that the guide way elements are connected together laterally by at least one spacer piece element (17, 18) consisting of a guide device securing pin (18), said securing pin being configured so that the guide device can be pivot-mounted on part of the vehicle.

Description

 Sun visor for a motor vehicle

TECHNICAL FIELD OF THE INVENTION The invention relates to a sun visor, in particular a sun visor intended to be integrated into a panoramic-looking automobile passenger compartment, in particular with a roof made of transparent material.

The invention more particularly relates to a sun visor for a motor vehicle, an arrangement comprising such a sun visor, and a vehicle comprising such an arrangement.

State of the art The sun visor is an essential accessory of a motor vehicle. It generally consists of an opaque screen, movable and adjustable, fixed to the surface of the ceiling of the passenger compartment of the vehicle, usually on a crossbar above the windshield. It helps protect the eyes of the driver or passenger from the sun's rays.

When not in use, the sun visor is folded out of the glazing field, being folded against the ceiling of the vehicle. But more and more often there are panoramic-view cockpits, associated with the possible presence of a large glass roof, in which the structural elements (upper crossbar) capable of supporting and accommodating the folded sunshades diminished size (in width). In addition the cross is often moved back towards the middle of the cabin to be positioned almost above the heads of the front occupants. When the roof of the cabin is transparent, the current sunshades exceed the opaque space formed by the cross on which they are fixed and overflow on the area of the glass roof. To reduce the visible portion on the roof, some sunshades are made using at least one roller blind comprising a shade cloth mounted on a reel for unwinding the fabric in a longitudinal direction from a position wound. The documents FR-A1 -2891493 and FR-A1 -2940194 describe such solutions where support elements are provided for carrying the fabric in the unwrapped position. The sun visor, including its awning and the fabric support members, can be hingedly mounted at the reel on a vehicle part, particularly near the roof surface.

When the sun visor is not used, the awning is retracted so that the fabric is in rolled up position. The fabric support members act in a stowed position in the manner of a blind while maintaining the side edge of the web opposite the reel cantilevered. More specifically, to form such support elements, the side edge of the web opposite to the road rou r is associated with a movable extension portion relative to a fixed portion comprising the winder, a linking mechanism connecting the fixed part and the extension part being provided to allow longitudinal displacement of the extension part and thus allow the winding or unwinding of the fabric from the reel. The connecting mechanism belonging to the fabric support elements, in the known floors, implement deployment members for example with two branches hinged together in the manner of a chisel, or double linkage type toggle. A first disadvantage thus lies in the complexity and cost of the support elements, given the design of the connecting mechanism and the obligation of the development of an extension part. By moreover, the bulk of the support elements implies that even when the blind is rolled up, the width of the folded sunshade may still be too wide compared to the width of the crossbar joining a panoramic windshield with a glass roof, may interfere with panoramic vision. On the other hand the sun visor does not always offer the desired coverage in the maximum unwound position of the blind. In addition, all these solutions are fragile because of the use of many parts in relative movements, which can lead to risks of breakage in practice, which is obviously not satisfactory.

Object of the invention

The object of the present invention is to provide a sunshade solution that overcomes the disadvantages listed above.

In particular, a problem to be solved is to have a sun visor that can be integrated into a panoramic view cockpit, associated with the possible presence of a large glass roof, without the sun visor hindering the panoramic vision when not used to obscure the light.

A first aspect of the invention relates to a sun visor for a motor vehicle, comprising on the one hand a roller blind comprising a shade cloth mounted on a reel allowing the unwinding of the fabric in a longitudinal direction from a wound position and on the other hand, a guiding device for translating the fabric in the longitudinal direction, comprising two slide elements arranged in the longitudinal direction, each configured to cooperate slidingly with at least one engagement element carried by the fabric, and deca les da ns a lateral di rection in order to frame laterally the canvas and to guide it on its longitudinal edges whatever the unwound position, the sun visor being characterized in that the slide elements are laterally connected to each other by at least one spacer element constituted by a fixing axis of the guide device, said fixing pin being configured so that pivotally mounting the guide device on a vehicle element.

According to other advantageous features of the invention,

 two spacer elements are offset in the longitudinal direction so as to delimit in combination with the two slide elements a guide device in the form of a planar frame;

 at least a portion of the surface surrounded by the frame is transparent to the light;

 - The surface surrounded by the frame is recessed at least partially;

- The axis of rotation of the winder on the guide device coincides with the axis of attachment of the guide device;

 - The side edge of the web opposite the reel is equipped over at least a portion of its length, a gripping element.

A second aspect of the invention relates to a motor vehicle arrangement comprising an opaque transom connecting a window of the vehicle and a glazed roof, characterized in that it comprises at least one sun visor com carrying a roller blind comprising a fabric d occultation mounted on a reel allowing unwinding of the fabric in a longitudinal direction from a wound position, and support elements of the fabric whatever its unwound position comprising a device for guiding the fabric in translation in the longitudinal direction, by sliding the fabric along the guide device in the unwound position of the fabric, said visor being fixed to the cross member so as to be able to vary between a raised position in which the guide device is positioned along the surface roof of the vehicle, and a lowered position in which the guiding device is positioned along the surface of a window of the vehicle.

According to other advantageous features of the invention:

- Fixing the guide device on the cross member is such that the guide device is pivotally mounted on the cross member;

 - Fixing the guide device on the crossbar is configured so that in the raised position, the guide ispositif is at least partially positioned along the glazed roof;

- Fixing the guide device on the cross member is configured so that in the lowered position, the guide device is at least partially positioned along the vehicle window;

 - The vehicle window is constituted by the windshield of the vehicle;

 the translational guiding device comprises at least one glissier element arranged according to the long longitudinal direction and configured to slide collaboratively with at least one engagement element carried by the fabric, in particular two slide elements shifted in a direction. lateral direction so as to frame the canvas laterally and to guide it on its longitudinal edges whatever the unwound position; the slide elements are laterally connected to each other by at least one bracing member, in particular by means of bracing elements offset in the longitudinal direction so as to delimit, in combination with the two slide members, a device in the form of a planar frame.

at least a portion of the surface surrounded by the frame is transparent to the light, in particular the surface surrounded by the frame being hollowed out at least partially.

a bracing member is constituted by a fixing axis of the guiding device configured so as to pivotally mount the guiding device on the cross member, in particular the axis of rotation of the winder on the guiding device coinciding with the axis of attachment of the guide device.

Brief description of the drawings

Other advantages and features will emerge more clearly from the description that will be learned from particular embodiments of the invention given by way of nonlimiting examples and shown in the accompanying drawings, in which:

 FIG. 1 represents a perspective view of an example of a sun visor according to the invention,

 FIG. 2 is a sectional view A-A of the sun visor of FIG. 1,

FIG. 3 is a detail view of FIG. 2, at the level of the winder,

 - Figure 4 is a sectional view B-B of the sun visor of Figure 1.

Description of preferred modes of the invention

According to one embodiment, the sun visor 10 for a motor vehicle, comprises a roller blind comprising a shade cloth 1 1 mounted on a winder 12 for unwinding the fabric January 1 in a longitudinal direction X from a rolled position .

According to an important characteristic, the sun visor 10 comprises support elements of the fabric regardless of the unwound position occupied after unwinding from the wound position. The support elements of the fabric 1 1 comprise a device for guiding the fabric 1 1 in the longitudinal direction X, guiding the fabric 1 1 by sliding the fabric 1 1 along the guide device in the unwound position of the Web. The term "unrolled position" corresponds to any state occupied by the fabric 1 1 between the position wound on the reel 12 and the maximum unwound position occupied at the end of sliding stroke of the fabric along the guide device.

For a better understanding of the following description, a repository is associated with the sun visor 10, including the device g d id ag e d written below. The reference system comprises the longitudinal direction X along which the sliding of the wire 1 1 takes place, and a lateral direction Y oriented along the axis of rotation 13 of the winder 12.

Advantageously, because of its simplicity of design and implementation, the device for guiding the translation of the fabric comprises at least one slide element arranged in the longitudinal direction X and configured to cooperate slidingly with at least one engagement element. worn by the canvas 1 1. In the particular example which is illustrated, two slide elements 14, 1 5 are offset in the lateral direction Y so as to frame laterally the web 1 1 and to guide it on its longitudinal edges regardless of the unwound position. Each of the slide elements 14, 15 therefore comprises, for example, a shape for receiving an engagement element 16, of complementary shape, carried by the fabric 1 1 and allowing the element 16 to slide along the element of slide 14, 15 in which it is engaged. A possible arrangement is illustrated in FIG. 4, in which a slide element 14 comprises a hollow tube portion arranged longitudinally and provided with a longitudinal slot opening laterally towards the laterally opposite slide member. The slot is intended to be traversed by the fabric January 1 to the corresponding longitudinal edge, so that at least one engagement element (for example a roller or more simply a retention pin) integral with the fabric is housed in the volume of the hollow tube while maintaining a longitudinal mobility of the engagement element 16 along the element slide 14, 15 associated. However, any equivalent assembly can be envisaged without departing from the concept of the invention.

With reference to FIG. 1, the slide elements 14, 15 are interconnected in the longitudinal direction Y, so as to keep them at a distance, potentially parallel to each other, by at least one spacer element, here two bracing members which are offset in the longitudinal direction X so as to delimit in combination with the two slide members 14, 15 a guiding device in the form of a planar frame. This plane corresponds to an X, Y plane. One of the bracing elements is constituted by a cross member 17 oriented in the lateral direction Y, at the ends of the slide elements 14, 15 opposite the winder 12. Another spacer element is constituted by an attachment pin 18 of the guiding device configured so as to pivotally mount the guiding device on a vehicle element, in particular an opaque cross member joining a window of the vehicle and a glass roof.

Advantageously but not exclusively, the axis of rotation 13 of the winder 12 on the guide device coincides with the fastening axis 18 of the guide device on the rest of the vehicle. Such a sun visor has the advantage of a very great compactness, a simplicity of design by a small number of parts, and allows to release the entire belted surface by the frame formed two by two by slide elements 14, 15 and the bracing members 17, 18 in the wound position of the fabric 1 1.

At least a portion of the surface surrounded by the frame, which adopts for example a rectangular shape, is transparent to light. For simplicity, the surface surrounded by the frame can be hollowed out at least partially, or even in totality. However, it remains possible to predict that all or part of the surface surrounded by the frame is covered with a wall, preferably formed in a material transparent to light. The fabric 1 1 is thus mounted on the slide elements 14, 15 of the guiding device so as to be slidably displaced along it, along the slide elements 14, 15. The direction of translation (arrow F FIGS. 1 and 2) of the fabric with respect to the guiding device correspond to the longitudinal direction X. The design of the assembly may especially be such that the fabric 1 1 can cover the entire belted surface by the delimited frame by the slide members 14, 15 and spacer members 17, 18. In this case, by translation relative to the guide device, the web 1 1 can come to occupy a maximum unwound position in which it covers the entire transparent surface to the light, being adjacent to the slide members 14, 15 arranged longitudinally and to the lateral cross member 17. It is furthermore that the fabric, in the unwound position, can adopt all the confi gurations covering the surface surrounded by the frame, with a recovery rate that can vary between 0% for example (in the particular case where in the wound position, the fabric 1 1 is totally clear of the transparent surface) and 100% for example (In the particular case where in the maximum unwound position, the fabric 1 1 completely covers the transparent surface), by adjusting the longitudinal position of the fabric along the guide device. For example in Figure 1, only a portion of the surface surrounded by the frame (ie the portion bordered by the winder 12) is covered by the fabric January 1. Moreover, to allow such adjustment manually, the lateral edge of the web 1 1 opposite the winder 12 is equipped, over at least a part of its length, or as illustrated on the whole, with an element of 19. A biasing member 22, such as a string running along the web to the side edge opposite the winder 12, may be provided for recall the canvas 1 1 to the wound position. However, the booster can be housed in the reel 12.

In addition, the guiding device comprises fixing elements configured so as to pivotally mount the guiding device on a vehicle element, in particular a cross member of the vehicle near the roof of the passenger compartment. These fastening elements, in addition to the attachment pin 18 previously mentioned and intended to cooperate by reversible engagement with a female member arranged on the crossbar of the vehicle, may further comprise a hinge system 20 integral with the guide device and intended to be fixed by any means to the vehicle roof transom. In addition, a tubular casing 21 may be arranged coaxially around the reel 12, in order to protect the wound cloth 1 1.

Thus, a possible motor vehicle arrangement comprising an opaque transom joining a vehicle window and a glass roof, may comprise at least one sun visor 10 as mentioned above, fixed on the cross member so as to be able to vary between a position raised in which the guiding device is positioned along the roof surface of the vehicle, and a lowered position in which the guiding device is positioned along the surface of a window of the vehicle. In particular, and thanks to the attachment pin 18 and the hinge system 20 for example, the fixing of the guide device on the cross member is such that the guide device is pivotally mounted on the cross member to move from the raised position. in the lowered position, or vice versa. It remains conceivable, however, that the passage from one position to the other of the sun visor 10 can be done by translation of the guide device relative to the cross member, in particular in a direction parallel to the longitudinal direction X associated with the sun visor 10 . In addition, the fixing of the guide device on the cross member can be configured so that in the raised position, the guide device is at least partially positioned along the glazed roof, allowing not to disturb the panoramic vision through or the glazed roof taking care to place the canvas 1 1 in its wound position.

On the other hand, the fixing of the guide device on the cross member can be configured so that in the lowered position, the guide device is at least partially positioned along the vehicle window. In this lowered position of the sun visor 10, the user can optionally adjust the light protection cover obtained through the sun visor 10 by adjusting the longitudinal position of the fabric 1 1 relative to the guide device from the wound position. In the foregoing, the vehicle glass is in particular constituted by the windshield of the vehicle, especially in the context of a panoramic vision vehicle implementing a panoramic windshield.

The sun visor 10 has the advantage of a good guiding of the fabric 1 1 in unwrapped position thanks to the presence of the sliding translation guide device, allowing a smaller complexity of a large sliding stroke of the fabric, so reliable, and therefore a very large light protection cover obtained by the sun visor.

Claims

1. Sun visor (10) for a motor vehicle, comprising on the one hand a roller blind comprising a shade cloth (1 1) mounted on a reel (1 2) allowing the fabric to unwind in a longitudinal direction (X) from a wound position and secondly a guiding device for translating the fabric in the longitudinal direction comprising two slide elements arranged in the longitudinal direction, each configured to cooperate slidably with at least one engagement element (1 6 ) carried by the fabric, and offset in a lateral direction (Y) so as to laterally frame the fabric and to guide it on its longitudinal edges whatever the unwound position, the sun visor being characterized in that the slide elements are laterally separated from each other by at least one bracing element (1 7, 1 8) constituted by a fixing pin (1 8) of the guiding device, said fixing pin being configured so as to pivotally mount the guide device on an element of the vehicle. 2. Sun visor according to claim 1, characterized in that two bracing elements are offset in the longitudinal direction so as to delimit in combination with the two slide members a guiding device in the form of a planar frame. 3. Sun visor according to claim 2, characterized in that at least a portion of the surface surrounded by the frame is transparent to light. 4. Sun visor according to claim 3, characterized in that the surface surrounded by the frame is recessed at least partially. 5. Sun visor according to one of claims 1 to 4, characterized in that the axis of rotation (13) of the winder (12) on the guide device coincides with the fastening axis (18) of the guiding device. 6. Sun visor according to one of claims 1 to 5, characterized in that the side edge of the web opposite the winder is equipped, over at least a part of its length, with a gripping element (19). ). Motor vehicle arrangement comprising an opaque cross-bar joining a window of the veh icule and a glazed roof, characterized in that it comprises at least one sun visor (10) comprising a roller blind comprising a shade cloth (1). 1) mounted on a winder (1 2) allowing a unwinding of the fabric in a longitudinal direction (X) from a wound position, and support elements of the fabric whatever its unwound position comprising a guide device for translational movement. the fabric according to the longitudinal direction (X), by a sliding of the fabric along the guide device in the unwound position of the fabric, said visor being fixed on the cross member so as to be able to vary between a raised position in which the guiding device is positioned along the roof surface of the vehicle, and a lowered position in which the guiding device is positioned along the surface of a window of the vehicle; vehicle. 8. Arrangement according to claim 7, characterized in that the fixing d ispositif gu idage on the crossbar is such that the ispositif guide is pivotally mounted on the crossbar. 9. Arrangement according to one of claims 7 and 8, characterized in that the fixing of the guide device on the cross is configured so that in the raised position, the guiding device is at least partially positioned along the glazed roof. 10. Arrangement according to one of claims 7 to 9, characterized in that the fixing of the guide device on the cross member is configured so that in the lowered position, the guide device is at least partially positioned along the window of vehicle. 1 1. Arrangement according to one of claims 7 to 10, characterized in that the vehicle window is constituted by the windshield of the vehicle. Arrangement according to one of Claims 7 to 11, characterized in that the translational guiding device comprises at least one slide element (14, 15) arranged in the longitudinal direction and configured to slide cooperatively with at least an engagement element (1 6) carried by the fabric, in particular two slider elements offset in a lateral direction (Y) so as to frame laterally the fabric and to guide it on its longitudinal edges whatever the unwound position. 3. Arrangement according to claim 1, characterized in that the slide elements are laterally connected to each other by at least one spacer element (1 7, 1 8), in particular by two spacer elements offset in the direction longitudinal so as to delimit in combination with the two slide elements a guide device in the form of a planar frame. 14. Arrangement according to claim 13, characterized in that at least a portion of the surface surrounded by the frame is transparent to light, in particular the surface surrounded by the frame being recessed at least partially. 15. Arrangement according to one of claims 13 and 14, characterized in that a spacer element is constituted by a fixing pin (18) of the guiding device configured so as to pivotally mount the guide device on the cross, including the axis of rotation (13) of the winder (1 2) on the guiding device coinciding with the axis of attachment (18) of the guide device.