Vehicle roof and vehicle

Abstract

A vehicle roof has a roof opening and a planar, transparent or translucent, roof element which seals the roof opening and is permanently connected to a roof frame of the vehicle roof. A ventilation device is integrated in the roof element and has a ventilation flap. The ventilation flap can be pivoted between a closed position in which the ventilation flap seals a ventilation opening and an open position in which the ventilation flap exposes the ventilation opening. A vehicle is equipped with a vehicle roof of this type.

Claims

1. A vehicle roof, comprising: a roof opening; a planar, transparent or translucent, roof element that closes the roof opening; a roof frame of the vehicle roof, the roof element being connected to the roof frame in a fixed manner; an interior roof liner; a ventilation device having a ventilation flap, the ventilation device being integrated in the roof element, wherein the ventilation flap is pivotable between a closed position, in which the ventilation flap closes a ventilation opening, and an open position, in which the ventilation flap opens the ventilation opening; and a rotatable roller blind extendible relative to the vehicle roof, wherein at least one portion of the roller blind is equipped with an air-permeable net fabric to provide for air exchange between an environment external to the vehicle and an interior of the vehicle when the roller blind is extended relative to the vehicle roof; wherein the roller bind is arranged between the roof liner and the roof element; wherein the ventilation device is offset longitudinally in a direction of vehicle travel from an opening in the roof liner, and wherein an air exchange gap formed between the roof liner and the vehicle roof traverses the longitudinal offset, via which air exchange occurs between the environment external to the vehicle and the interior of the vehicle; and wherein a wall separates the roller blind in a retracted position from the air exchange gap.

2. The vehicle roof according to claim 1, wherein the ventilation flap is pivotable into the open position such that an edge of the ventilation flap is lowered below a roof surface of the vehicle roof.

3. The vehicle roof according to claim 1, wherein the ventilation flap is pivotable such that the ventilation opening faces the roof element or faces away from the roof element.

4. The vehicle roof according to claim 1, wherein the ventilation device is integrated in a cut-out in the roof element and/or in a cut-out in a screen.

5. The vehicle roof according to claim 1, wherein the ventilation device has a drive, which drive is connected to the ventilation flap in order to pivot the ventilation flap between the closed position and the open position.

6. The vehicle roof according to claim 5, wherein the ventilation flap is coupled to the drive via a lever device.

7. The vehicle roof according to claim 1, wherein the ventilation flap has cover plates.

8. The vehicle roof according to claim 1, wherein the roof element comprises a glass panel.

9. A vehicle comprising a vehicle roof according to claim 1.

10. A vehicle roof, comprising: a roof opening; a planar, transparent or translucent, roof element that closes the roof opening; a roof frame of the vehicle roof, the roof element being connected to the roof frame in a fixed manner; a ventilation device having a ventilation flap, the ventilation device being integrated in the roof element, wherein the ventilation flap is pivotable between a closed position, in which the ventilation flap closes a ventilation opening, and an open position, in which the ventilation flap opens the ventilation opening; the ventilation device has a housing, within which the ventilation flap is mounted so as to be pivotable about a pivot axis, and a water channel integrated internally within the housing is configured to conduct and discharge water from the housing.

11. The vehicle roof according to claim 10, wherein the ventilation flap is pivotable into the open position such that an edge of the ventilation flap is lowered below a roof surface of the vehicle roof.

12. The vehicle roof according to claim 10, wherein the ventilation flap is pivotable such that the ventilation opening faces the roof element or faces away from the roof element.

13. The vehicle roof according to claim 10, wherein the ventilation device is integrated in a cut-out in the roof element and/or in a cut-out in a screen.

14. The vehicle roof according to claim 10, wherein the ventilation device has a drive, which drive is connected to the ventilation flap in order to pivot the ventilation flap between the closed position and the open position.

15. The vehicle roof according to claim 10, wherein the ventilation flap is coupled to the drive via a lever device.

16. The vehicle roof according to claim 10, wherein the ventilation flap has cover plates.

17. The vehicle roof according to claim 10, wherein the roof element comprises a glass panel.

18. A vehicle comprising a vehicle roof according to claim 10.

19. The vehicle roof according to claim 1, wherein the ventilation flap is pivotable into the open position such that an edge of the ventilation flap is raised above a roof surface of the vehicle roof.

20. The vehicle roof according to claim 10, wherein the ventilation flap is pivotable into the open position such that an edge of the ventilation flap is raised above a roof surface of the vehicle roof.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a vehicle with a vehicle roof;

(2) FIG. 2 is a plan view of a vehicle roof with a ventilation device according to a first embodiment;

(3) FIG. 3 is a perspective illustration of the vehicle roof with the ventilation device according to the first embodiment, wherein a ventilation flap of the ventilation device is pivoted downwards;

(4) FIG. 4 is a cross section through the ventilation device of FIG. 3 along the line IV-IV with the ventilation flap in a closed position and an open position;

(5) FIG. 5 is a cross section through a ventilation device according to the first embodiment with a roller blind with a vent insert and a support-bow holder, wherein the vent insert is covered;

(6) FIG. 6 is a cross section through a ventilation device according to the first embodiment with a roller blind with a vent insert and a support-bow holder, wherein the vent insert is exposed;

(7) FIG. 7 is a perspective illustration of a ventilation device according to a second embodiment, wherein the ventilation flap of the ventilation device is pivoted upwards;

(8) FIG. 8 is a cross section through the ventilation device of FIG. 7 along the line VII-VII with the ventilation flap in a closed position and an open position; and

(9) FIG. 9 is a perspective illustration of a vehicle roof with a ventilation device according to a third embodiment.

DETAILED DESCRIPTION OF THE DRAWINGS

(10) FIG. 1 shows a vehicle 10, which has a vehicle roof 12. The vehicle 10 may be a motor vehicle with an internal combustion engine or a drive machine designed as an electric motor.

(11) As can be seen in FIGS. 2 to 6, the vehicle roof 12 has a roof opening 14, a planar, transparent or translucent roof element 16 and a ventilation device 18.

(12) The planar, transparent or translucent roof element 16 is designed as a glass panel 20 and closes the roof opening 14 in that it is connected to a roof frame 22 of the vehicle roof 12 in a fixed manner, in particular adhesively bonded to the roof frame 22. As can be seen in particular in FIGS. 2 and 3, the glass panel is equipped with a circumferential frame 24, which is a black print.

(13) The ventilation device 18 is integrated in a parabolic cutout 26 of the glass panel 20 and has a housing 28, a ventilation flap 30 which is pivotably arranged within the housing 28, a lever device 32 and a drive device 34.

(14) The housing 28 is materially bonded, in particular adhesively bonded, to the roof frame 22. The housing 28 moreover has a water channel 36, which surrounds the housing 28 and is arranged, with a seal 38, between the ventilation flap 30 and a screen 39 covering the cutout 26. The water which is transported away via the water channel 36 is conducted outwards via discharge tubes (not illustrated), which may be designed as hoses.

(15) The seal 38 is connected to the ventilation flap 30 and surrounds this. The seal 38 prevents water from penetrating between the glass panel 20, the screen 39 and the ventilation flap 30. The seal 38 is made of an elastic material, for example an elastomer or EPDM.

(16) The ventilation flap 30 may be made of metal, plastic material or glass and, as described above, is pivotably arranged within the housing 28. As can be seen in particular in FIG. 4, the ventilation flap 30 pivots about a pivot axis 41 or swivel axis. The pivot axis 41 is arranged at a rear end 40 of the ventilation flap 30 and is realized via a swivel joint (not illustrated), which is connected to the housing 28.

(17) For pivoting purposes, the ventilation flap 30 is connected to the drive device 34 via the lever device 32. The drive device 34 may be an electric motor. The lever device 32 is designed as a lever 48, which is connected to the drive device 34, wherein the lever 48 transfers a movement of the drive device 34 to the ventilation flap 30 so that the ventilation flap is pivoted about the pivot axis 41.

(18) As can be seen in particular in FIG. 4, the ventilation flap 30 pivots between a closed position, in which the ventilation flap 30 closes a ventilation opening 42, and an open position, in which the ventilation flap 30 opens the ventilation opening 42. In the open position, a front edge 44 of the ventilation flap 30 is lowered below a roof surface 46 of the vehicle roof 12.

(19) In the embodiment illustrated in FIGS. 1 to 6, the ventilation device 18 is arranged adjacent to a front window 50 or windshield and is therefore situated in the region with the greatest negative pressure on the vehicle roof 12. Air is thus sucked out of a vehicle interior in the open position of the ventilation flap 30. To this end, the air flows laterally into the housing 28 through a ventilation grille (not illustrated) and outwards via the ventilation opening 42.

(20) As can moreover be seen in FIGS. 4 to 6, for protection against solar radiation and as a barrier against wind, the vehicle roof 12 has an electrically driven roller blind 52, which is equipped at one end with a support bow 54 which is guided in guide rails (not illustrated). In the closed position (shown in FIGS. 5 to 6) of the roller blind 52, the support bow is guided into a support-bow holder 56 formed in the vehicle roof 12. In order to enable an air exchange between the vehicle interior and the environment when the roller blind 52 is closed and the ventilation flap 30 is open, the roller blind 52 has a vent insert 58 in the form of netting or a net fabric. So that an air exchange between the interior and the environment takes place effectively, the support-bow holder 56 is designed in such a way that the support bow 54 may move further rearwards than is shown in FIG. 6, so that the vent insert 58 is no longer covered and points into the vehicle interior. A roof liner 19 is arranged below the roller blind 52. The roof liner 19 extends from a front window 50 to a region of the support-bow holder 56 and along a roof side frame and over a region in front of a rear window. An gap for air exchange with the vehicle interior is therefore provided between the support-bow holder 56 and the roof element 16.

(21) Further embodiments of the vehicle roof 12 are explained below, wherein the same reference signs are used for similar or functionally similar parts.

(22) In FIGS. 7 and 8, a second embodiment of the ventilation device 18 is shown, which differs from the first embodiment in that a rear edge 62 of the ventilation flap 30 is raised above the roof surface 46 in the open position so that the ventilation opening 42 points rearwards in the longitudinal vehicle direction, i.e. away from the front window 50.

(23) In order to raise the rear edge 62 above the roof surface 46, the pivot axis 41 is arranged in a front end 60 of the ventilation flap 30. As can be seen in FIG. 8, the pivot axis 41 is a swivel joint 63, which is connected to the housing 68 in a fixed manner.

(24) In order to pivot the ventilation flap 30 between the open and closed position, the lever device 32 has a lever 48, which is connected to a web 66 protruding from the ventilation flap 30, via a receiving element 64, which is rotatably mounted on the lever 48. The lever 48 is connected to the drive device 34, which is designed as an electric motor. To connect the receiving element 64 to the web 66, the receiving element 64 has a T-shaped groove 68, in which a corresponding T-shaped end portion 70 of the web 66 engages.

(25) To improve the aeroacoustics, the ventilation flap 30 is equipped with lateral cover plates 72.

(26) In the exemplary embodiment shown in FIGS. 7 and 8, the seal 38 is connected to the glass panel 20.

(27) In FIG. 9, a third embodiment of the vehicle roof 12 is shown, which differs from the other embodiments in that the ventilation flap 30 is pivotably arranged within the housing 28 in such a way that, in the open position, the ventilation opening 42 points forwards in the longitudinal vehicle direction, i.e. in the direction of travel. A dynamic pressure is thus generated at high speed so that the outside air is conducted into the vehicle interior.

(28) In an embodiment (not illustrated) of the vehicle roof 12, the ventilation device 18 is designed in such a way that the ventilation opening 42 points forwards in the longitudinal vehicle direction, i.e. in the direction of travel, and in such a way that, depending on a speed of the vehicle, the front edge 44 of the ventilation flap 30 is lowered below the roof surface 46 of the vehicle roof 12 in order to generate a dynamic pressure, or in such a way that the front edge 44 of the ventilation flap 30 is raised above the roof surface 46 of the vehicle roof 12 in order to generate a negative pressure.

(29) In a further embodiment (not illustrated), the ventilation deice 18 is integrated in the roof element 16 such that it is adjacent to a rear window. The ventilation flap 30 is thus situated in a region with the relative positive pressure, i.e. the ventilation flap 30 is situated behind the glass roof, as seen in the longitudinal vehicle direction. In this case, outside air is conducted into the vehicle interior.

(30) The combination of a roof element 16, which is designed as a glass panel 20 and is connected to the roof frame 22 in a fixed manner, and a ventilation flap 30 results in good light transmittance and greater light penetration into the vehicle interior, and therefore a good spatial effect, on the one hand, and, on the other, the ventilation flap 30 enables ventilation of the vehicle interior and therefore temperature-regulation within the vehicle interior. Therefore, in the open position, air may exit the vehicle interior or flow into the vehicle interior and therefore support the climate control.

LIST OF REFERENCE SIGNS

(31) 10 Vehicle 12 Vehicle roof 14 Roof opening 16 Roof element 18 Ventilation device 20 Glass panel 22 Roof frame 24 Frame 26 Cutout 28 Housing 30 Ventilation flap 32 Lever device 34 Drive device 36 Water channel 38 Seal 39 Screen 40 Rear end 41 Pivot axis 42 Ventilation opening 44 Front edge 46 Roof surface 48 Lever 50 Front window 52 Roller blind 54 Support bow 56 Support-bow holder 58 Vent inert 60 Front end 62 Rear edge 63 Swivel joint 64 Receiving element 66 Web 68 T-shaped groove 70 T-shaped end portion 72 Cover plate