Rear seat system of a motor vehicle

1. A rear seat system of a motor vehicle, the rear seat system comprising:

at least one seat containing:

a seat surface; and

a backrest extending from said seat surface, said backrest having at least one lateral backrest sidewall extending at least over part of a height of said backrest and said backrest being foldable over forward about a pivot axis independently of said lateral backrest sidewall for enlarging a loading space situated behind the rear seat system, said lateral backrest sidewall being mounted to be pivotable about the pivot axis and configured such that said lateral backrest sidewall can be adjusted together with said backrest into at least two different backrest inclination positions, said backrest can be folded over forward about the pivot axis from each of the different backrest inclination positions independently of said lateral backrest sidewall, said lateral backrest sidewall having a construction space formed therein defining a storage compartment, said lateral backrest sidewall extending only over part of said height of said backrest, and said backrest having an integrated shoulder engaging over said lateral backrest sidewall and being pivotable about the pivot axis.

2. The rear seat system according to claim 1 , further comprising a retaining device for fixing said lateral backrest sidewall to a vehicle body of the motor vehicle.

3. The rear seat system according to claim 2 , wherein said retaining device has a locking bar disposed on the vehicle body and a lock disposed on one of said lateral backrest sidewall and said backrest and being releasably connected to said locking bar.

4. The rear seat system according to claim 3 , wherein said locking bar on the vehicle body is mounted on the vehicle body such that said locking bar can be adjusted generally horizontally with respect to an adjustment of backrest inclination.

5. The rear seat system according to claim 3 , further comprising an adjusting device provided for adjusting said locking bar on the vehicle body generally horizontally with respect to an adjustment of a backrest inclination.

6. The rear seat system according to claim 2 , wherein said retaining device has a lock disposed on the vehicle body and a locking bar disposed on one of said lateral backrest sidewall and said backrest and being releasably connected to said lock.

7. The rear seat system according to claim 6 , wherein said lock disposed on the vehicle body is mounted on the vehicle body such that said lock can be adjusted generally horizontally with respect to an adjustment of a backrest inclination.

8. The rear seat system according to claim 6 , further comprising an adjusting device provided for adjusting said lock on the vehicle body generally horizontally with respect to an adjustment of a backrest inclination.

9. The rear seat system according to claim 1 , wherein said backrest is fixed releasably to a vehicle body of the motor vehicle indirectly via said lateral backrest sidewall.

10. A rear seat system of a motor vehicle, the rear seat system comprising:

at least one seat containing:

a seat surface; and

a backrest extending from said seat surface, said backrest having at least one lateral backrest sidewall extending at least over part of a height of said backrest and said backrest being foldable over forward about a pivot axis independently of said lateral backrest sidewall for enlarging a loading space situated behind the rear seat system, said lateral backrest sidewall being mounted to be pivotable about the pivot axis and configured such that said lateral backrest sidewall can be adjusted together with said backrest into at least two different backrest inclination positions, said backrest can be folded over forward about the pivot axis from each of the different backrest inclination positions independently of said lateral backrest sidewall, said lateral backrest sidewall has a construction space formed therein for receiving at least one of a telecommunication device and an airbag, said backrest having an integrated shoulder engaging over said lateral backrest sidewall and being pivotable about the pivot axis; and

a retaining device for fixing said lateral backrest sidewall to a vehicle body of the motor vehicle, said retaining device having a lock disposed on the vehicle body and a locking bar disposed on one of said lateral backrest sidewall and said backrest and being releasably connected to said lock.

11. A rear seat system of a motor vehicle, the rear seat system comprising:

at least one seat containing:

a seat surface; and

a two-piece backrest extending from said seat surface, said backrest having a first piece being a lateral backrest sidewall extending over part of a height of said backrest and a second piece being a main backrest body having an integrated shoulder engaging over said lateral backrest sidewall, said main backrest body being foldable over forward about a pivot axis independently of said lateral backrest sidewall for enlarging a loading space situated behind the rear seat system, said lateral backrest sidewall being mounted to be pivotable about the pivot axis and configured such that said lateral backrest sidewall can be adjusted together with said main backrest body into at least two different backrest inclination positions, said main backrest body can be folded over forward about the pivot axis from each of the different backrest inclination positions independently of said lateral backrest sidewall, said lateral backrest sidewall having a construction space formed therein defining a storage compartment.