WO2013171038A1

WO2013171038A1 - Covering device

Info

Publication number: WO2013171038A1
Application number: PCT/EP2013/058389
Authority: WO
Inventors: Jean-Paul Albert
Original assignee: Webasto SE
Priority date: 2012-05-15
Filing date: 2013-04-23
Publication date: 2013-11-21
Also published as: FR2990653B1; FR2990653A1

Abstract

The invention relates to a covering device comprising a cover arrangement (3) that is moveably mounted for the purpose of shifting between a spread position in which it extends relative to a zone to be covered, and a storage position, said cover arrangement (3) comprising two sections (31, 32) of a web laid one over the other, and the device allowing the relative translation of the sections (31, 32) in a cover arrangement (3) spreading direction in order to adjust the transparency of said cover arrangement (3). A first edge (311) of the first section (31) is secured to a first winding device (4), and a first edge (321) of the second section (32) is secured, on the same side as the first edge (311) of the first section (31), to a suspension device (5, 22') that is independent of said first winding device (4).

Description

description

Covering device Technical area

The invention relates to a covering device which makes it possible to cover an opening at least partially by modulating the transparency of the device, in particular in a passenger compartment of a motor vehicle.

Background of the invention

Certain motor vehicles are equipped with an opening which allows the light to penetrate into the interior of the passenger compartment, in particular through the car roof of the vehicle. Such an opening accommodates, for example, a glass or plastic disk in a fixed manner or in a movable manner in the case of a sunroof. It is also the case of a windshield that extends to a substantially horizontal part over the seats of the occupants of the vehicle. The disc can be completely transparent, tinted or translucent. Compared to such openings, covering devices are provided to enable the users of the vehicle to control the brightness inside the vehicle and possibly protect themselves from direct radiation and to limit the greenhouse effect on the days of strong solar radiation.

From the document FR 2941735 Al a covering device is known, which makes it possible to regulate the degree of transparency, it has the ge ^¬ genüber the opening. For this purpose, it comprises a covering device which can be displaced between an extended position in which it extends in relation to the zone to be covered and a storage position in which it is wound onto a winding device, which is arranged ent ^¬ long an edge of the opening, movably ^¬ is introduced. The cover comprises two superimposed web pieces, each having a variety of bright zones and dark or opaque zones. The device enables the relative translation of the pieces according to the propagation direction of the cover. Thus, the cover means can be controlled so that the bright zones of each piece face each other and provide the maximum transparency, or on the contrary, bring a light zone from one of the pieces to an opaque zone of the other piece and thus cover the cover To maximize opacity. The brightness can be controlled by arranging the pieces in each intermediate position between the two previously described positions.

In order to control the relative position of the pieces, one of the pieces is connected to the other piece in an elastic manner near the edge of the piece attached to the winding device. The regulation of the relative position of the pieces is also possible only when the cover is in the deployed position.

Consequently, it is an object of the invention to provide a Abdeckvor- direction, which makes it possible to the transparency of a cover not only when the latter is in the extended position, but also in any intermediate position in the direction of the storage position to graduate.

According to one embodiment of the invention, a covering device comprises a covering device which is movably mounted for displacement between a deployed position in which it extends in relation to a zone to be covered and a storage position, the covering device comprising two superimposed pieces of web the relative translation of the pieces in one Propagation direction of the cover allows to adjust the transparency of the cover, characterized in that a first edge of the first piece is attached to a first winding device, wherein a first edge of the second piece on the same side as the first

Edge of the first piece is attached to a suspension device independent of the first winding device.

By separating the two web pieces so that they are not wound up on the same reeling device, they do not block each other in the storage position and thus may shift with respect to each other, even in positions other than the deployed position. The functionality of the choice of the degree of transparency thus remains available, even if the covering device is not completely spread out. The concept of degree of transparency must be understood globally with respect to the covering means, namely their ability to transmit part of the light from the outside into the interior of the vehicle. This light can be direct, as in the case of a glass pane, but also diffused or distributed between light zones and dark zones.

According to a first embodiment, the suspension means is a second winding device, which is parallel to the first take-up device, wherein the device further comprises a pull rod for actuating the expansion of the cover, wherein the pull rod includes means for ^¬ Regu-regulation of the relative position of the two pieces. Each piece unwinds independently on its own winding device. In each position of the tie rod, the regulating means can be controlled to direct a ^¬ Ver reduction of the pieces in the direction of propagation. Each of the windup devices keeps their respective part tensioned, with nothing preventing the relative displacement of the pieces. According to a constructive arrangement, the winding devices are offset with respect to each other in the propagation direction. The addition of a coiler does not imply an increase in the thickness of the cover, but only in its length. The height left in the passenger compartment is unaffected in relation to the prior art.

According to a constructive arrangement, the regulating means comprise a regulating rod which is slidably mounted on the drawbar and to which a second edge of the second piece is attached. Thus, one has simple and compact means for controlling the displacement between the two pieces.

According to an improvement of the regulation means comprise a rotary knob which drives an eccentric which cooperates with a groove extending in the direction of the regu ^¬ approximately rod. By turning the knob, the relative translation of the drawbar and the regulating rod is controlled, wherein the eccentric acts on the groove of the regulating ^¬ rod to obtain their relative displacement.

According to a second embodiment, the Aufhängungsein- is direction a with respect to the to be covered zone solid Ele ^¬ ment, the apparatus further comprises a pull rod for STEU ^¬ s of propagation of the cover, wherein the pull bar comprises a recirculation device, wherein the first piece and the second piece of one and the same web, which runs over the recirculation device. The two pieces that overlap come from one and the same web, thus looping at the level of the recycle device. The zones of different degrees of transparency of the second piece appear to be fixed with respect to the zone to be covered, while only the zones of the first piece shift. By controlling the position of the tie rod, the position of the zones with different degrees of transparency will become the first piece and thus the match with the zones of the second piece or not determined. Consequently, the global transparency of the covering device for the entire run of the drawbar between the storage position and the extended position can be modulated.

According to a perfection, the covering device comprises means for motorization for displacing the drawbar, the position of the drawbar being determined as a function of a controlled degree of transparency. By controlling, for example, a ^degree of transparency between 0 and 100% between the possible ends, the motorization system is given the care of positioning the drawbar in the position which is useful for obtaining the desired degree of transparency.

In particular, the pieces comprise strips with a predetermined degree of transparency alternating with bands of a predetermined Opa ^¬ zitätsgrades, wherein the bands extend in a transverse direction. The degree of opacity must be understood as an intrinsic degree, which more or less hinders the passage of light.

Brief description of the figures

The invention will be better understood and other Besonderhei ^¬ th and advantages will become apparent upon reading the following description, which description makes reference to the accompanying drawings, in which:

FIGS. 1 to 4 are views from below, d. H. from inside a passenger compartment, from a cover device according to a first embodiment of the invention to different positions of a cover device;

Fig. 5 is a sectional view along line VV of Fig. 1; FIG. 6 is a sectional view along the line VI-VI of FIG. 2; FIG. Fig. 7 is a sectional view taken along the line VII-VII of Fig. 3;

Fig. 8 is a sectional view taken along the line VIII-VIII of Fig. 4;

Figures 9 to 12 are schematic side views of the apparatus of Figure 1 in various positions, including a storage position and partial transparency positions; Fig. 13 is a view of detail XIII of Fig. 2;

- Fig. 14 and 15 are perspective cutaway views of an eccentric, which is gesteu ^¬ ert through the button of Fig. 13;

Figs. 16a and 16b are sectional views of the detail XVI of Fig. 5 in two positions modulating the degree of transparency; Fig. 17 is a sectional view of the detail XVII of Fig. 5;

- Fig. 18 to 21 are schematic side views of a cover device according to a second embodiment of the invention in various positions, including a storage position and different positions with partial Transparent ^¬ rence.

DETAILED DESCRIPTION OF EXPORT FORMS

In the following description, because of the light expressions, front and back, top and bottom, are longitudinal and transversely to orientations or directions relative to a vehicle in the normal position of use.

With reference to FIGS. 1 and 2, a cover device according to a first embodiment is intended to control the transparency of an opening 10 in the car roof 1 of a motor vehicle. The opening 10 is realized by a glass pane. The glass sheet may be a solid plate or a movable plate by teilwei ^¬ ses opening or by sliding over a conventional mechanics mechanism which is not shown.

The covering device comprises a frame 2 having two lateral elements 21 extending in a longitudinal direction and a rear transverse strut 22 and a front transverse strut 23 extending in a transverse direction. A cover 3 is provided to spread out from the opening 10 between the rear cross member 22 and the front cross member 23, as shown in Figs. 1 and 2, or to be stored at the level of the rear cross member 22, as shown in FIG 9 schematically illustrated.

The covering device 3 comprises a pull rod 30 which is displaced between the front transverse strut 23 and the rear transverse strut 22, being substantially parallel to the latter. The drawbar 30 is conventionally guided in longitudinal rails, not shown, carried by the lateral elements 21 of the frame 2, the drawbar 30 being driven by motorisation means which are not described here and are not illustrated in the figures.

The covering device also comprises two winding devices 4, 5, of which the first 4 is intended to wind up a first piece 31 of the covering device 3, while the second winding device 5 is intended to wind up a second piece 32 of the covering device 3. The second winding device 5 is parallel to the first winding device 4 in the rear staggered manner arranged. The two pieces 31, 32 erstre ^¬ CKEN one above the other between the tie rod 30, and their respective winding device 4, 5. A first edge 311 of the first piece 31 is moun- ted on the first take-up device 4, a first edge 321 of the second piece 32 is on the same side as the first edge 311 of the first piece 31 attached to the second winding device 5, which plays the role of a suspension device that is independent of the first take-up device 4 plays. A second edge 312 of the first piece 31 opposite the first edge 311 is attached to the pull rod 30, while a second edge 322 of the second piece 32 is fixed to a control rod 301 opposite the first edge 321. The winding ^¬ devices 4, 5 maintain a tension on the pieces 31, 32 upright, which are ^{festgehal ¬} th by their respective rod 30, 301 th.

The regulation rod 301 is slidably attached to the pull rod 30. The drawbar 30 also includes a knob 302 and an eccentric 303 driven by the knob 302 and cooperating with a groove 305 of the regulating rod 301 extending in the transverse direction. A half revolution of the knob 302 and hence the cam 303 drives the sliding of the control rod 301 with respect to the pull rod 30 between a dark Posi ^¬ tion, as shown in Figs. 1, 5, 10, 14 and 16a shown, and a brightness position as shown in Figs. 2, 6, 12, 15 and 16b, to. Each piece 31, 32 of the cover 3 is a web of textile with a change of transverse bands with a first and a second degree of transparency. The degree of transparency is obtained for example by very tight weave for a transparency of zero or near zero for so-called dark bands 313, 323 or by weaving, leaving spaces between the stitches for a large Transpa ^¬ ence, for so-called bright ribbons 314, 324th The cover 3 can also with pieces of film made of plastic with impressions for modu ^¬ lieren the transparency be realized.

The widths of the bands are essentially identical, where the darker bands 313, 323 may slightly be wider than the lighter bands 314, 324. The first piece comprises rods 33, which extend transversely and ermögli ^¬ chen, the first piece 31, a to give a special shape. The second piece 32 also follows the same shape by also resting on the rods 33. Preferably, the Stäb ^¬ surfaces 33 are arranged at the level of the dark bands 313th

When using the cover device, the cover device 3 can be arranged in a storage position, as shown in Fig. 9. The pull rod 30 is then closest to the winding devices 4, 5, the pieces 31, 32 are wound on this. The covering device 3 can also be arranged in an intermediate position, as shown in FIGS. 3, 4, 7 and 8, wherein the covering device 3 covers only a part of the opening 10 on the side of the rear transverse strut 22. In this intermediate position, the degree of transparency can be set by the knob 302: in the Dunkelheitspo ^¬ sition the dark bands are 313 of the first piece 31 relative to the light strips 324 of the second piece 32 and vice versa. In the brightness position, the regulatory ^¬ rod 301 drives the second piece 32 so as to be offset with respect to the first piece 31 by the dark bands 313, 323 opposite to each other and the light bands are 314, 324 placed opposite each other. This shift is made mög ^¬ Lich by the independence of the two winding devices 4; 5. In the dark position of the dark bands 313 stop 323 the major part of light on the Ge ^¬ totality of the surface of the cover 3, as it is intercepted by the dark bands 313, 323 of one or the other of the pieces 31, 32nd In the brightness position, however, the light, the passenger compartment can by übereinan ^¬ the specified light bands 314, reaching the 324th The covering device 3 can also be arranged in a deployed position, as shown in FIGS. 1, 2, 5, 6, 10, 11 and 12. In this position, the covering device 3 lies opposite the entirety of the surface of the opening

10, wherein the pull rod 30 is closest to the front Quererstre ^¬ be 23. The knob 302 can also be in the dark Posi ^¬ tion, as shown in Figs. 1, 5 and 10, shown in a Hellig ^¬ keitszwischenposition, as shown in Fig. 11, or in a luminance position, as shown in Figs. 2, 6 and 12 are arranged. The effects of the cover 3, as previously described, are thus extended to the entire surface of the opening 10. In a second embodiment, which is shown schematically in FIGS. 18 to 21, the covering device comprises a first winding device 4 ', a drawbar 30' with a return device 306 and a covering device 3 ', which consists of a web which turns around the return device 306 is thus separated by a first piece 31 'and a second piece 32' on both sides of the return device 306. The first piece 31 'is attached to the first winding device 4' by a first edge 311 '. The second piece 32 'is fixed by a first edge 321' to a fixed suspension means, namely the rear cross member 22 '. The web includes a change of dark bands 313 'and bright bands 314'. The pull rod 30 'is driven by not illustrated ^¬ set motorization.

Fig. 18 shows a storage position in which the web is wound on the winding device 4 'and the pull rod 30' is closest to the winding device 4 '. The cover 3 leaves the opening 10 completely free.

By displacing the drawbar 30 'in the direction of propagation, the cover 3 is arranged in front of the opening 10, the web sliding on the recirculating device 306 for part of the web to pass from the first piece 31 'to the second piece 32' while the first piece 31 'unwinds from the coiler 4'. FIG. 19 shows an expanded position in which the opening 10 is completely covered by the covering device 3. It should also be noted in this position that the dark bands 313 'of the first piece 31' alternate with the dark bands 323 'of the second piece 32', which corresponds to a maximum coverage.

From this propagation position, the recycle device 306 can be easily approximated in the direction of the windup device. The dark bands of the second piece 32s maintain the same position with respect to the opening 10, but on the other hand, the dark bands of the first piece 31 approach the winding device by being taken up by the winding device. Fig. 20 shows this displacement phase. When the dark bands 313 ', 323' of the first and second pieces 31, 32 coincide, this also applies to the bright bands 314 ', 324', and the brightness position is reached in which the light passes through the aperture 10 to the passenger compartment bright bands 314 ', 324' as shown in Fig. 21. This position can be achieved by providing regulation means 302, 301 as in the first embodiment by replacing the regulation rod with the recirculation device 306.

As soon as the propagation position is reached by the pull rod 30, the regulation of the degree of transparency can be achieved manually with the knob. In complementary Wei ^¬ se can be provided that the drive means the

Pull rod 30 'can stop in predetermined intermediate positions, which are offset by a period of a length corresponding to the Sum ^¬ me a width of a bright band and a dark band. On the basis of these predetermined positions, the degree of transparency can be regulated with the knob. In a variant it can be provided that the degree of transparency is controlled directly in an electrical manner by the choice of a matched interface, which is not shown in detail, of one of the predetermined positions and a variation on the basis of this predetermined position, depending on the desired degree of transparency. The ^{Antriebmit ¬} tel thus bring the pull rod 30 'in the commanded Posi ^¬ tion.

The invention is not limited to the embodiment which has been described by way of example only. The bands of the capping means 3 are not necessarily transversal but may have a different geometry which allows the superimposition of the shaped forms to form a plate completely filled with dark shapes or to transmit light.

Claims

claims

A cover device comprising cover means (3) movably mounted for displacement between a deployed position in which it extends opposite a zone to be covered and a storage position, said cover means (3) comprising two superimposed pieces (31, 32) includes a path, the apparatus enables the rela- tive translation of the pieces (31, 32) in a propagation direction ^¬ the cover means (3) to adjust the transparency of the cover (3), characterized in that a first edge (311 ) of the first piece (31) is attached to a first winding device (4), wherein a first edge (321) of the second piece (32) on the same side as the first edge (311) of the first piece (31) on a suspension device ( 5, 22 ') independent of the first winding device (4).

2. Device according to claim 1, wherein the suspension device is a second winding device (5) parallel to the first winding device (4), wherein the device further comprises a pull rod (30) for controlling the propagation of the cover device (3), wherein the pull rod ( 30) comprises means for controlling the relative position of the two pieces (31, 32).

3. Device according to claim 2, wherein the winding devices (4, 5) are offset relative to each other in the direction of propagation.

Apparatus according to claim 2, wherein the regulating means comprises a regulating rod (301) slidably mounted on the drawbar (30) and to which a second edge (322) of the second piece (32) is attached.

Apparatus according to claim 4, wherein the regulating means comprises a knob (302) which drives an eccentric (303) cooperating with a groove (305) extending in the direction of the regulating rod (301).

6. The apparatus of claim 1, wherein the suspension means ', wherein the apparatus further comprises a tie rod (30 a fixed with respect to the zone to be covered Ele ^¬ ment (22)' holds) environmentally for controlling the propagation of the covering, the Drawbar (30 ') comprises a recirculation device (306), wherein the first piece (31') and the second piece (32 ') originate from one and the same web which passes over the recirculation device (306).

7. Apparatus according to claim 6, characterized in that it ', wherein the position of the pull rod (30 motorization means for displacing the draw bar (30)') is determined in dependence of a commanded from ^¬ degree of transparency.

8. Device according to one of claims 1 to 7, wherein the pieces (31, 32) bands (313, 323) with a predetermined degree of transparency alternate with bands (314, 324) of a predetermined degree of opacity, wherein the bands which extend in a transverse direction.