GLASS ROOF ARRANGEMENT FOR A MOTOR VEHICLE

Abstract

A glass roof arrangement, having a support frame fixedly connected to roof structure parts of a vehicle body. At least one transparent roof panel is fixedly arranged on the support frame, and a shading device is assigned to the underside of the roof panel and has a shading structure displaceable longitudinally in guide rails fastened to an underside of the roof panel. A guide profile cross-section of each guide rail is formed from an edge limb supported substantiall orthogonally on the underside of the roof panel, and a guide limb extends substantially parallel to the underside and is attached to the edge limb that a lateral guide channel for the shading structure is formed and delimited by the underside of the roof panel, the edge limb, and the guide limb.

Claims

1. A glass roof arrangement for a motor vehicle, having a support frame, which, in the operating state, in which the support frame is mounted in a manner fixed on the vehicle, is fixedly connected to roof structure parts of a vehicle body, wherein at least one transparent roof panel is fixedly arranged on the support frame, and the glass roof arrangement also having a shading device, assigned to the underside of the at least one roof panel and having a shading structure, which shading structure can be displaced longitudinally in guide rails, wherein the guide rails are fastened to an underside of the at least one roof panel, wherein a guide profile cross-section of each guide rail, in which guide profile cross-section the shading structure is guided laterally in each case, is formed from an edge limb attached at least largely orthogonally to the underside of the roof panel, and a guide limb extending at least largely parallel to the underside of the roof panel and attached to the edge limb, in such a way that a lateral guide channel for the shading structure is formed and delimited by the underside of the roof panel, the edge limb, and the guide limb.

2. The glass roof arrangement according to claim 1, wherein each guide rail has an adhesive limb projecting from the edge limb in the opposite direction to the guide limb and is positioned at a distance from the underside of the roof panel.

3. The glass roof arrangement according to claim 2, wherein the distance of the adhesive limb from the underside of the roof panel is such that a gap is formed to accommodate an adhesive bead.

4. The glass roof arrangement according to claim 2, wherein the distance of the adhesive limb to the underside of the roof panel is less than a distance of the guide limb to the underside of the roof panel.

5. The glass roof arrangement according to claim 1, the guide rail consists of plastic, at least in portions.

6. The glass roof arrangement according to claim 1, wherein the edge limb is provided with an elastically flexible damping material at least in an edge region facing the underside of the roof panel.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. 1 shows a plan view of an embodiment of a glass roof arrangement for a passenger car according to the invention;

[0012] FIG. 2 shows, in an enlarged view, a cross-section along line of section II-II through a subregion of the glass roof arrangement according to FIG. 1; and

[0013] FIG. 3 shows the illustration according to FIG. 2, but in which the shading structure is shown in somewhat more detail.

DETAILED DESCRIPTION

[0014] According to FIGS. 1 to 3, a glass roof arrangement 1 for a passenger car has a transparent roof panel 2, which is fixedly connected on the underside in the region of its peripheral edge to a dimensionally stable support frame 3, 4. As can be seen from FIGS. 2 and 3, the roof panel 2 is bonded at the edge in the region of its underside to support profile portions 4 which are parts of the support frame 3, 4. On the basis of FIGS. 2 and 3, a headliner portion 5 of a vehicle interior is also additionally indicated and is intended to cover lateral roof frame regions of the vehicle body that are not shown. The lateral roof frame portions are roof structure parts of the vehicle body in the sense of the invention. The support frame 3, 4 is fixedly connected to corresponding roof structure parts of the vehicle body in the ready-for-use assembled state.

[0015] It can be seen from FIGS. 2 and 3 that a shading structure 6 of a shading device is associated with the roof panel 2 in the region of its underside. The shading structure has a flexible shading web 8, which is held in a manner not shown so that it can be wound onto and unwound from a roller shaft. The roller shaft is mounted in the region of the support frame 3, 4 so as to be rotatable about an axis of rotation extending in the transverse direction of the vehicle. In a rest position, in which the underside of the roof panel 2 is exposed, the shading web 8 is wound at least almost completely onto the roller shaft. In a shading position, in which the shading web 8 covers the underside of the roof panel 2 in the longitudinal direction of the vehicle and in the transverse direction of the vehicle, the shading web 8 is extended and stretched over its surface. The shading web 8 has a flexible design and is preferably made of a textile sheet material, in particular a textile knitted fabric.

[0016] At a front end region in the pull-out direction, the shading web 8 is connected to a dimensionally stable pull-out profile 7, which extends across the width of the shading web 8 in the transverse direction. FIG. 3 shows that the shading web 8 is folded around the extension profile 7. This ensures a particularly intimate and high-quality connection between the extension profile 7 and the shading web 8. The pull-out profile 7 has, at each of its opposite end faces, a guide slider 9 which is inserted into an open side of the pull-out profile 7, which is embodied as a hollow profile, and is fixedly connected to the pull-out profile 7. The guide slider 9 is slidably guided on the opposite longitudinal sides of the shading web 8 in a guide rail 10 in each case, wherein only one guide rail 10 is shown on the basis of FIGS. 2 and 3. The opposite guide rail 10 is mirror-symmetrical to a vertical vehicle center longitudinal plane, but otherwise is of identical design.

[0017] The guide rail 10 is formed by a dimensionally stable longitudinal profile made of a light metal alloy or a suitable plastics material. The guide rail 10 has a guide limb 11, which faces the vehicle interior, is spaced at least largely parallel to the underside of the roof panel 2, and can be seen in cross-section in FIGS. 2 and 3. The guide limb 11 projects in one piece from an edge limb 12 pointing approximately at right angles in the direction of the underside of the roof panel 2. In addition, an adhesive limb 13 is provided, which also projects in one piece from the edge limb 12, but in the opposite direction to the guide limb 11. In addition, the distance of the adhesive limb 13 from the underside of the roof panel 2 is less than the distance of the guide limb 11 from the underside of the roof panel 2. The adhesive limb 13 and the guide limb 11 are oriented parallel to one another. All three limbs, i.e. the edge limb 12, the guide limb 11 and the adhesive limb 13, are embodied as rectilinear ribs and form integral portions of the one-part longitudinal profile which constitutes the guide rail 10.

[0018] As can be seen from FIGS. 2 and 3, the edge limb 12 is fitted in a manner butted against the surface of the underside of the roof panel 2. In this case, the edge limb 12 is supported on the underside of the roof panel 2 by its upwardly pointing, longitudinal end face, so that this end face of the edge limb 12 directly contacts the underside of the roof panel 2 in a linear manner. A height of the edge limb 12 corresponds to the distance of the guide limb 11 to the underside of the roof panel 2.

[0019] An upwardly facing inner side of the guide limb 11, a longitudinal side of the edge limb 12 pointing to the right in the plane of the drawing, and the underside of the roof panel 2 form a guide channel for the guide slider 9, said guide channel extending in the longitudinal direction of the glass roof arrangement 2. In the illustrated exemplary embodiment, the opposing guide rails 10 are oriented parallel to one another in their mounted operating state on the underside of the roof panel 2.

[0020] To fix the longitudinal profile forming the guide rail 10 to the underside of the roof panel 2, an adhesive bead K is provided laterally outside the guide channel of the guide rail 10 and thus offset laterally outwardly from the edge limb 12, and forms an adhesive layer for bonding the longitudinal profile to the underside of the roof panel 2. The adhesive bead K is dimensioned such that it fills a gap between the adhesive limb 13, the outwardly facing longitudinal side of the edge limb 12, and the underside of the roof panel 2 at least largely completely and over the surface. For an assembly of the guide rail 10, the adhesive bead K can already be continuously applied to the adhesive limb 13 before the longitudinal profile, i.e. the guide rail 10, is pressed from below against the underside of the roof panel 2. Alternatively, the adhesive bead K can be provided on the underside of the roof panel 2, and the longitudinal profile is pressed against the adhesive bead K. In both cases, once the adhesive bead K has cured, a stable connection between the guide rail 10 and the underside of the roof panel 2 is achieved. On the basis of FIG. 3, the orientations of the adhesive limb 13, the edge limb 12 and the guide limb 11 of the longitudinal profile are more strongly emphasized in order to be able to clearly recognize the longitudinal gap for the adhesive bead K on the one hand and the guide channel for the guide slider 9 on the other hand.