Vehicle roof comprising a roof opening system having two kinematics units

Abstract

A vehicle roof has a roof opening system comprising a lid element displaceable between a closed and open position displacement kinematics for displacing the lid, each of the displacement kinematics comprising a guide rail, a first and second kinematic unit guided in a guide rail, and a set of drive cables for the kinematic units, the second kinematic unit comprising a tilting lever, to which a gliding element is pivotably connected on which a guide track of a lid carrier of the lid element is guided when the lid element is displaced. The first kinematic unit is driven via a first drive cable by a first drive motor and the second kinematic unit has a control rod which is hinged to the tilting lever and to a drive slide which is driven via a second drive cable by a second drive motor.

Claims

1. A vehicle roof having a roof opening system, the vehicle roof comprising: a lid element displaceable between a closed position, in which a roof opening is closed, and an open position, in which the roof opening is open, displacement kinematics for displacing the lid element which are disposed on either side of a vertical longitudinal roof plane, each of the displacement kinematics comprising: a guide rail, a first kinematic unit guided in the guide rail and a second kinematic unit guided in the guide rail, and a set of drive cables for the two kinematic units, each second kinematic unit comprising a respective second tilting lever, to which a respective second gliding element is connected so as to be pivotable, on which a guide track of a lid carrier of the lid element is guided when the lid element is being displaced, wherein each first kinematic unit is driven via a respective first drive cable of the set of drive cables by a respective first drive motor and each second kinematic unit has a respective second control rod which is hinged to the respective second tilting lever and which is hinged to a respective second drive slide which is driven via a respective second drive cable of the set of drive cables by a second drive motor, and wherein each first kinematic unit is a front kinematic unit and comprises a respective first drive slide and a respective first tilting lever hinged to the lid carrier and comprising a respective first tilting slot in which a respective first pin is guided which is formed on the respective first drive slide of each first kinematic unit.

2. The vehicle roof according to claim 1, wherein the respective second gliding element and the respective second control rod have a shared pivot axis on the respective second tilting lever.

3. The vehicle roof according to claim 1, wherein the respective second tilting lever has a respective second bearing pin which defines a pivot axis of the respective second tilting lever on the guide rail and which is guided in a guide track of an assigned guide rail.

4. The vehicle roof according to claim 1, wherein the respective second tilting lever has a respective second control pin which is disposed in a slot of the guide rail in the closed position of the lid element, the slot initiating a tilting movement of the respective second tilting lever when the lid element is being displaced from the closed position to the open position.

5. The vehicle roof according to claim 1, wherein the respective second tilting lever has a respective second retaining pin which engages in a retaining track formed on the guide rail when the respective second tilting lever is being tilted.

Description

(1) One exemplary configuration of a vehicle roof according to the disclosure is illustrated in a schematically simplified manner in the drawing and will be explained in more detail in the following description.

(2) FIG. 1 is a schematic top view of a vehicle roof according to the disclosure;

(3) FIG. 2 is a schematic side view of a roof opening system of the vehicle roof of FIG. 1 with a lid element in a closed position;

(4) FIG. 3 is a view of the roof opening system corresponding to FIG. 2, but with the lid element in a ventilation position;

(5) FIG. 4 is also a view of the roof opening system corresponding to FIG. 2, but with the lid element moved slightly rearward;

(6) FIG. 5 is also a view of the roof opening system corresponding to FIG. 2, but with the lid element in an open position;

(7) FIG. 6 is an enlarged view of a front kinematic unit of the roof opening system for the closed position of the lid element;

(8) FIG. 7 is a view of the front kinematic unit corresponding to FIG. 6, but for the lifted state of the lid element;

(9) FIG. 8 shows a rear kinematic unit of the roof opening system for the closed position of the lid element;

(10) FIG. 9 is a view of the rear kinematic unit of the roof opening system corresponding to FIG. 8, but for the lifted state of the lid element; and

(11) FIG. 10 is a section through a guide rail of the roof opening system.

(12) In a highly schematic fashion, FIG. 1 shows a vehicle roof 10 which is an openable vehicle roof of a passenger car and which has a roof opening 12 limited by a solid roof portion 14 and capable of being selectively closed or at least partially opened by means of a lid element 16. Lid element 16 is part of a roof opening system 18 forming a spoiler roof.

(13) Roof opening system 18 of vehicle roof 10 comprises a guide rail 20 on either side of a vertical longitudinal roof plane. In each guide rail 20, a front first kinematic unit 22 and a rear second kinematic unit 24 is disposed. Front kinematic units 22 are driven by means of a first drive motor 28 via first drive cables 26. Rear kinematic units 24 are driven by means of a second drive motor 30 via second drive cables 30. In the embodiment at hand, drive motors 28 and 32 are each disposed centrally on a front frame part of a roof frame (not illustrated) forward of roof opening 12.

(14) Roof opening system 18, which is illustrated in detail in FIGS. 2 to 9, is essentially symmetrical relative to a vertical longitudinal roof plane. Thus, the following description is mostly aimed at the displacement kinematics disposed on the left relative to the forward direction of travel of the vehicle in question. The displacement kinematics disposed on the right relative to the forward direction of travel are essentially symmetrical and is therefore apparent by analogy. Additionally, components of the roof opening system which are disposed in different planes in the transverse roof direction are projected into the drawing plane in FIGS. 2 to 8.

(15) As described above, the displacement kinematics each comprise a front kinematic unit 22 and a rear kinematic unit 24 which are disposed in a shared guide rail 20 and which are connected to separate drive cables 26 and 30, respectively. Drive cables 26 and 30 are guided in respective guide rail 20 on top of each other in guide channels 34 and 36 formed in guide rail 20 on a side of a guide track 38. The cable duct sections for the two drive cables of the kinematic units which are assigned to a guide rail are in particular disposed on top of each other on one side of the guide track. Kinematic units 22 and 24 are guided or disposed in guide track 38.

(16) As shown in FIGS. 6 and 7 in particular, front kinematic unit 22 comprises a drive slide 40, which is connected to drive cable 26 guided in guide channel 34, and on which a pin 42 guided in a tilting 44 is formed. Tilting 44 is formed on a tilting lever 46 which is hinged to a slide 45 via a hinge point 48 at one end and to a lid carrier 52 via a hinge point 50 at the other end, lid carrier 52 being fastened to the underside of lid element 16. Furthermore, front kinematic unit 22 comprises a slotted track 54 which is formed on the front end of guide rail 20 and interacts with a guide pin 56 which is disposed on tilting lever 46.

(17) Rear kinematic unit 24, which is illustrated in detail in FIGS. 8 and 9, comprises a drive slide 58 which is connected to second drive cable 30 and which is guided in guide channel 36 of guide rail 20. A control rod 62 is hinged to second drive slide 58 via a hinge point 60, control rod 62 being hinged to a tilting lever 66 in a hinge point 64 by means of its end facing away from drive slide 58. A gliding element 68 is mounted so as to be pivotable on tilting lever 66, the pivot axis of gliding element 68 coinciding with the pivot axis of hinge point 64. Gliding element 68 is guided so as to be displaceable on a guide track 70 formed on lid carrier 52, which is disposed on the underside of lid element 16.

(18) In its end portion facing away from hinge point 64, tiling lever 66 has a bearing pin 72 which is guided so as to be displaceable in a guide track 74 formed on guide rail 20. Additionally, a control pin 76 is disposed on tilting lever 66 in an area distanced from bearing pin 72, control pin 76 interacting with a slot 78, which is also formed on guide rail 20 and has a curved shape with an outlet opening 80 on the upper side. In its end portion facing away from hinge point 64, tilting lever 66 has a retaining pin 82 which interacts with a retaining track 84 in the tilted state of tilting lever 66, retaining track 84 being formed on guide rail 20 and being essentially perpendicular.

(19) Roof opening system 18 which is described above operates in the manner described in the following.

(20) In order to shift lid element 16 from the closed position illustrated in FIG. 2 into the open position illustrated in FIG. 5, both drive motors 28 and 32 are operated first, whereby drive slide 40 is moved relative to slide 45 by means of the first drive cable, as illustrated in FIGS. 6 to 9, causing the front edge of lid element 16 to be slightly lifted by the interaction of pin 42 formed on drive slide 40 with tilting 44 of tilting lever 46 and by the interaction of guide pin 56 with slotted track 54. At the same time, tilting lever 66 is moved rearward via control rod 62 by means of second drive cable 30, whereby control pin 76 guided in slot 78 causes a tilting of tilting lever 66. Additionally, a torque acting in the tilting direction is introduced into tilting lever 66 via control rod 62. When bearing pin 72 comes into contact with the rear front face of guide track 74, retaining pin 82 of tilting lever 66 engages in retaining track 84 of guide rail 20. Thus, tilting lever 66 is secured in the longitudinal direction of guide rail 20. Drive slide 58 is being displaced until tilting lever 66 has reached its tilting position illustrated in FIG. 9. Control pin 76 has then left slot 78. Second drive motor 32 can then be stopped. A further actuation of first drive motor 28 drives drive slide 40 further in the direction of the rear via first drive cable 26. Pin 42 which is formed on drive slide 50 and disposed in tilting 44 thus pulls lid element 16 further in the direction of the rear, the tilting position of tilting lever 46 being secured by guide pin 56 disposed in a guide channel of guide rail 20. When lid element 16 is driven back, guide track 70 of lid carrier 52 is guided on gliding element 68 of rear second kinematic unit 24, such that lid element 16 is moved over solid roof portion 14.

(21) Lid element 16 is moved from its open position into its position in the analog opposite manner, such that a detailed description relating thereto is not required.

(22) Various other modifications and variations to the preferred embodiments can be made within the spirit and scope of the invention. Therefore, the invention should not be limited to the described embodiments. To ascertain the full scope of the invention, the following claims should be referenced.

REFERENCE SIGNS

(23) 10 vehicle roof 12 roof opening 14 solid roof portion 16 lid element 18 roof opening system 20 guide rail 22 first kinematic unit 24 second kinematic unit 26 first drive cable 28 first drive motor 30 second drive cable 32 second drive motor 34 first guide channel 36 second guide channel 38 guide track 40 drive slide 42 pin 44 tilting 45 slide 46 tilting lever 48 hinge point 50 hinge point 52 lid carrier 54 slotted track 56 guide pin 58 drive slide 60 hinge point 62 control rod 64 hinge point 66 tilting lever 68 sliding element 70 guide track 72 bearing pin 74 guide track 76 control pin 78 slot 80 outlet opening 82 retaining pin 84 retaining track