Fitting system for a vehicle seat

1. A fitting system for a vehicle seat, the system defining a pivot axis of a backrest, the system comprising:

a fitting lower part on each of two sides of the vehicle seat;

a fitting upper part on the two sides of the vehicle seat, wherein each fitting upper part is pivotable about the pivot axis of the backrest relative to the associated fitting lower part;

a lock, said fitting upper part on one side of the vehicle seat having said lock cooperating with an opposing element to lock the fitting system in a use position; and

a prestressed latch cooperating with another opposing element and receiving same on the other side of the vehicle seat located opposite the lock, wherein said another opposing element received by said latch is movable over an idle path relative to said latch including when said lock is locked with the fitting system in the use position.

2. A fitting system in accordance with claim 1 , wherein said lock and said latch are provided on the fitting lower parts and the opposing elements are provided on the fitting upper parts.

3. A fitting system in accordance with claim 1 , further comprising:

a shaft mounted rotatably at the two fitting lower parts or at the two fitting upper parts.

4. A fitting system in accordance with claim 3 , further comprising:

a plate cam connected to said shaft for rotation in unison therewith, said plate cam being arranged on a side of the vehicle seat on which said latch is located.

5. A fitting system in accordance with claim 4 , wherein:

said latch has a control pin; and

said plate cam is in contact with said latch at said control pin of said latch.

6. A fitting system in accordance with claim 5 , wherein said shaft rotates said plate cam which opens said latch to release said opposing element of said lock.

7. A fitting system in accordance with claim 6 , wherein:

said plate cam has one or more catches; and

said plate cam keeps said latch open with said catches.

8. A fitting system in accordance with claim 4 , wherein:

said latch has a closing arm;

a prestressed buckling spring exerts a closing torque on said latch and is arranged between a closing arm of said latch and said plate cam.

9. A fitting system in accordance with claim 3 , further comprising: a carrier lever is connected to said shaft for rotation in unison therewith, wherein:

said carrier lever is in contact with said opposing element of said lock and said carrier lever is arranged on a side of said vehicle seat on which said lock is located.

10. A fitting system in accordance with claim 9 , wherein for passing over from the use position into an out-of-use position, said lock is unlocked and said fitting upper parts pivot relative to said fitting lower parts.

11. A fitting system in accordance with claim 9 , wherein said pivoting fitting upper part on a side of the vehicle seat on which said lock is located pivots said carrier lever by said opposing element to rotate said shaft.

12. A motor vehicle seat comprising a backrest and a fitting system for pivoting said backrest relative to a vehicle body about a backrest pivot axis and for locking the backrest relative to the vehicle body, the fitting system comprising:

a first side fitting lower part;

a first side fitting upper part, said first side fitting upper part being pivotable about the backrest pivot axis relative to said first side fitting lower part;

a second side fitting lower part;

a second side fitting upper part, said second side fitting upper part being pivotable about the backrest pivot axis relative to said second side fitting lower part;

a lock associated with said first side and cooperating with an opposing element to lock said fitting system in a use position; and

a prestressed latch associated with said second side for receiving another opposing element, wherein said another opposing element received by said latch is movable over an idle path relative to said latch including when said lock is locked with the fitting system in said use position.

13. A motor vehicle seat in accordance with claim 12 , wherein said lock and said latch are provided on the fitting lower parts and the opposing elements are provided on the fitting upper parts.

14. A motor vehicle seat in accordance with claim 12 , further comprising:

a shaft mounted rotatably at the two fitting lower parts or at the two fitting upper parts; and

a plate cam connected to said shaft for rotation in unison therewith, said plate cam being arranged on a side of the vehicle seat on which said latch is located.

15. A motor vehicle seat in accordance with claim 14 , wherein:

said latch has a control pin; and

said plate cam is in contact with said latch at said control pin of said latch.

16. A motor vehicle seat in accordance with claim 14 , wherein:

said latch has a closing arm;

a prestressed buckling spring exerts a closing torque on said latch and is arranged between a closing arm of said latch and said plate cam.

17. A motor vehicle seat in accordance with claim 14 , further comprising: a carrier lever is connected to said shaft for rotation in unison therewith, wherein:

said carrier lever is in contact with said opposing element of said lock and said carrier lever is arranged on a side of said vehicle seat on which said lock is located.

18. A motor vehicle seat in accordance with claim 17 , wherein:

for passing over from the use position into an out-of-use position, said lock is unlocked and said fitting upper parts pivot relative to said fitting lower parts;

said first pivoting fitting upper part pivots said carrier lever by said opposing element to rotate said shaft.

19. A motor vehicle seat comprising a backrest and a fitting system for pivoting said backrest relative to a vehicle body about a backrest pivot axis and for locking the backrest relative to the vehicle body, the fitting system comprising:

a first side fitting lower part;

a first side fitting upper part, said first side fitting upper part being pivotable about the backrest pivot axis relative to said first side fitting lower part;

a second side fitting lower part;

a second side fitting upper part, said second side fitting upper part being pivotable about the backrest pivot axis relative to said second side fitting lower part;

a lock associated with said first side and cooperating with an opposing element to lock said fitting system in a use position;

a prestressed latch associated with said second side for receiving another opposing element;

a shaft mounted rotatably at the two fitting lower parts or at the two fitting upper parts;

a plate cam connected to said shaft for rotation in unison therewith, said plate cam being arranged on a side of the vehicle seat on which said latch is located, said latch having a control pin, said plate cam being in contact with said latch at said control pin of said latch.