Motor vehicle, in particular a cabriolet, having a rollover protection device arrange behind the seats

1. A motor vehicle, comprising:

seats;

a vehicle supporting structure;

a rollover protection device disposed behind said seats, said rollover protection device containing:

a supporting frame extending in a vehicle transverse direction and fastened to said vehicle supporting structure, said supporting frame having two lateral upright column sections, a transversely running connecting profile, and two support elements connected to said lateral upright column sections; and

at least one rollover protection cassette having a deployable rollover body and a housing, at least one of said at least one rollover protection cassette and said housing being a constituent part of said supporting frame, said rollover protection cassette is disposed externally adjacent to said lateral upright column sections.

2. The motor vehicle according to claim 1 , wherein:

said rollover protection cassette is one of two rollover protection cassettes having outer ends;

said connecting profile extending in said vehicle transverse direction is disposed between said two rollover protection cassettes;

said two lateral upright column sections are connected in each case to one of said outer ends of said rollover protection cassettes; and

said two support elements connect said two lateral upright column sections to said vehicle supporting structure.

3. The motor vehicle according to claim 2 , wherein components of said rollover protection device are one of welded, screwed and riveted to one another.

4. The motor vehicle according to claim 2 , wherein components of said rollover protection device are formed from one of metal, a light metal, a cast metal and fiber-reinforced plastics.

5. The motor vehicle according to claim 2 , wherein at least one of said connecting profile, said two lateral upright column sections, and said housings of said rollover protection cassettes are formed from extruded profile parts.

6. The motor vehicle according to claim 2 , wherein:

said two lateral upright column sections each have an upper edge; and

said housings have an upper edge region approximately aligned with said upper edge of said two lateral upright column sections adjoining said housings, said housings and said connecting profile have a lower height extent than said lateral upright column sections such that a free space remains between a lower edge of one of said housings and of said connecting profile and said vehicle supporting structure.

7. The motor vehicle according to claim 1 , wherein said two lateral upright column sections have lower ends with supporting feet detachably connected to said underlying vehicle supporting structure with an interposition of said supporting feet.

8. The motor vehicle according to claim 1 , wherein said two lateral upright column sections are connected to said vehicle supporting structure in each case by said support elements being rearwardly aligned support elements.

9. The motor vehicle according to claim 8 , further comprising a retaining angle bracket welded to a rear side of said two lateral upright column sections in each case and approximately in a middle to upper region of a height extent of said two lateral upright column sections, to which said retaining angle bracket can be fastened a front end of said rearwardly aligned supporting elements.

10. The motor vehicle according to claim 1 , wherein:

said vehicle supporting structure has a rear longitudinal beam; and

said support elements each being a rearwardly aligned support element having a rear end detachably fastened to said rear longitudinal beam of said vehicle supporting structure.

11. The motor vehicle according to claim 1 , wherein said two support elements are forwardly aligned support elements, said two lateral column sections of said rollover protection device are connected to said vehicle supporting structure in each case by one of said forwardly aligned support elements.

12. The motor vehicle according to claim 11 , further comprising in each case one lateral retainer attached to upright outer sides of said two lateral upright two column sections, to which said lateral retainer is detachably fastened a rear end of one of said forwardly aligned support elements.

13. The motor vehicle according to claim 11 , further comprising a side impact protection device, a front end of each of said forwardly aligned support elements is detachably connected to a component of said side impact protection device.

14. The motor vehicle according to claim 11 , further comprising in each case one lateral retainer attached to upright outer sides of said two lateral upright two column sections, to which said lateral retainer is detachably fastened a rear end of one of said rearwardly aligned support elements.

15. The motor vehicle according to claim 1 , wherein the motor vehicle is a cabriolet.

16. A rollover protection device disposed behind seats of a motor vehicle, said motor vehicle further having a vehicle supporting structure, the rollover protection device comprising:

a supporting frame extending in a vehicle transverse direction and fastened to the vehicle supporting structure, said supporting frame having two lateral upright column sections directly connected to the vehicle supporting structure, a transversely running connecting profile, and two support elements connected to said lateral upright column sections; and

at least one rollover protection cassette having a deployable rollover body and a housing, at least one of said at least one rollover protection cassette and said housing being a constituent part of said supporting frame, said rollover protection cassette is disposed externally adjacent to said lateral upright column sections.