Vehicle seat, in particular motor vehicle seat

1. A vehicle seat, comprising:

a first structural part;

a second structural part; and

at least one fitting configured to be locked and unlocked, the at least one fitting having a first fitting part at least indirectly connected to the first structural part and a second fitting part at least indirectly connected to the second structural part,

wherein, when the at least one fitting is unlocked, an angular position of the second structural part relative to the first structural part can be varied about an axis,

wherein in at least one angular position of the second structural part relative to the first structural part a spring element braces the first fitting part and the second fitting part with respect to each other in a radial direction, and in at least one further angular position of the second structural part relative to the first structural part, the spring element has no influence on the at least one fitting;

wherein the first structural part is a seat part structure of a seat part and the second structural part is a backrest structure of a backrest

wherein the vehicle seat comprises a use position suitable for transporting passengers, in which the backrest is substantially upright, and the vehicle seat comprises a non-use position in which the backrest is pivoted about the axis to the front relative to the use position;

wherein in the use position the spring element has no influence on the fitting and in the non-use position the spring element braces the first fitting part and the second fitting part relative to one another in the radial direction.

2. The vehicle seat as claimed in claim 1 , wherein the first fitting part is connected to the seat part structure by an adapter.

3. The vehicle seat as claimed in claim 1 , wherein the second fitting part is connected to the backrest structure by an adapter.

4. The vehicle seat as claimed in claim 1 , wherein in the non-use position the backrest is pivoted into a substantially horizontal position.

5. The vehicle seat as claimed in claim 1 , wherein the spring element is supported in the radial direction on one of the first fitting part and the second fitting part and the spring element is fixedly fastened to the one of the first fitting part and the second fitting part, and a finger braces the spring element in the at least one angular position of the second structural part relative to the first structural part in the radial direction.

6. The vehicle seat as claimed in claim 5 , wherein the finger pivots with another one of the first fitting part and the second fitting part about the axis.

7. The vehicle seat as claimed in claim 6 , wherein a radially inwardly facing internal surface of the finger is curved in a peripheral direction with a radius about the axis.

8. The vehicle seat as claimed in claim 5 , wherein the finger is fastened to the second structural part or an adapter connected to the second structural part, the second structural part being a backrest structure.

9. The vehicle seat as claimed in claim 5 , wherein when adopting at least one angular position the finger comes into contact with a flange of the spring element.

10. The vehicle seat as claimed in claim 9 , wherein the flange comprises at least one flange portion arranged further radially outwardly than a radially inwardly facing surface of the finger.

11. The vehicle seat as claimed in claim 1 , wherein the spring element is of wedge-shaped configuration in a peripheral direction.

12. The vehicle seat as claimed in claim 1 , wherein the spring element has a lead-in chamfer extending in a wedge-shaped manner in a peripheral direction.