Adjustable vehicle roof having a fabric cover

1. An adjustable vehicle roof having a flexible cover that may be moved between a closed position and a stored position, the roof comprising:

a cover rod assembly having a main arch which is articulately fixed to the vehicle body, and a corner arch articulately supported on the vehicle body, the main arch being located in front of the corner arch in the longitudinal direction of the vehicle when the vehicle roof is closed;

a cover supported by the cover rod assembly and having a rear window that is integrated into the cover; and

wherein the rear window in the stored position is stored between the corner arch and the main arch.

2. Vehicle roof according to claim 1 further comprising a spring element that engages the corner arch and biases the corner arch in the direction of the stored position.

3. Vehicle roof according to claim 2 wherein the spring element is attached to the vehicle body.

4. Vehicle roof according to claim 1 wherein the corner arch is connected to the main arch via a tensioning belt, the tensioning belt being tensioned when the vehicle roof is in the closed position and holding the corner arch in a raised position.

5. Vehicle roof according to claims 1 wherein the rear window is pivotably supported.

6. Vehicle roof according to claim 5 wherein the rear window is pivotably supported about a rotary joint which is rigidly attached to the body and faces toward the rear of the vehicle.

7. Vehicle roof according to claim 1 wherein the rear window is intrinsically rigid.

8. Vehicle roof according to claim 1 further comprising a kinematic control system for the main arch that supports the corner arch in an articulated manner on the main arch.

9. A roof for a vehicle having a passenger compartment, the roof being adjustable between a raised position and a stored position, the roof comprising:

a flexible cover having a back portion that is attached to the vehicle proximate a rear portion of the passenger compartment, the cover having a front portion that may be selectively attached to the vehicle at a location forward of the rear attachment location;

a rod assembly having a first arch secured to the vehicle in an articulated manner to be movable in a forward and rearward direction relative to the vehicle, the first arch supporting the flexible cover material when the roof is in the raised position, the rod assembly having a second arch that is disposed behind the first arch and is secured to the vehicle in an articulated manner to be movable in a forward and rearward direction relative to the vehicle, the second arch supporting the flexible cover when the roof is in the raised position; and

a rear window integrally secured to the flexible cover, wherein the rear window is disposed between the first and second arches when the vehicle roof is in the stored position.

10. The roof of claim 9 further comprising a spring element engaging the second arch that biases the second arch towards the position of the second arch when the roof is in the stored position.

11. The roof of claim 9 further comprising a tension element that connects the first arch to the second arch, wherein the tension element is in tension when the vehicle roof is in the raised position and wherein the tension element holds the second arch in the raised position.

12. The roof of claim 9 wherein the rear window is pivotably supported relative to the vehicle.

13. The roof of claim 9 wherein the rear window is pivotably supported by a rotary joint that is rigidly attached to the vehicle.

14. The roof of claim 9 wherein the window is rigid.

15. The roof of claim 9 wherein the first arch and the second arch are articulated independently of one another.

16. The roof of claim 9 further comprising a kinematic control system that controls articulation of the first arch.

17. The roof of claim 16 wherein the second arch is supported in an articulated manner on the kinematic control system.