Method for producing a rear wall of a seat backrest

1. A method of manufacturing at least one of a vehicle seat structure, a vehicle seat and a vehicle seat bench, comprising:

forming at least one back shell extending in a direction transverse to a direction of travel and having a front side relative to the direction of travel and a back side relative to the direction of travel, a frame structure shell, reinforcement ribs arranged on the front side of the back shell, absorption ribs arranged on the back side of the back shell, and structural insertion components arranged on the back shell and/or the frame structure,

wherein said forming includes connecting at least the back shell and the frame structure to each other in a plastic to plastic manner by melting surfaces of the back shell and the frame structure and subsequently joining the back shell and the frame structure at those melted surfaces to form a one-piece integrated structural component,

wherein the back shell comprises an inner portion and an outer portion,

wherein the back shell and the frame structure are molded such that the frame structure surrounds and encloses the inner portion of the back shell in the direction transverse to the direction of travel and separates the inner portion of the back shell from the outer portion of the back shell,

wherein the back shell and/or the frame structure include thermoplastic, and said forming includes encasing at least areas of the structural insertion components in the thermoplastic of the back shell and/or the frame structure, and

wherein the reinforcement ribs and the absorption ribs each include a plurality of horizontal ribs and vertical ribs,

wherein the reinforcement ribs and the absorption ribs surround the structural insertion components on the front side and back side, respectively, of the back shell in the direction transverse to the direction of travel,

wherein the reinforcement ribs are arranged on the inner portion and the outer portion of the front side of the back shell,

wherein the absorption ribs are arranged on the inner portion and the outer portion of the back side of the back shell.

2. The method according to claim 1 , wherein the back shell and the frame structure are formed from the same thermoplastic, and the thermoplastic is fiber-reinforced.

3. The method according to claim 1 , wherein the frame structure extends across the front side of the back shell in the direction transverse to the direction of travel.

4. The method according to claim 1 , wherein the structural insertion components are manufactured from a metallic material or from a semi-product consisting of a fiber composite.

5. The method according to claim 1 , wherein said forming includes creating a loading opening in the back shell.

6. The method according to claim 1 , wherein the structural insertion components are formed as a structural support component and, in a corresponding manner, as a formed structural covering component and integrated into the frame structure.

7. The method according to claim 1 , wherein the structural insertion components are formed as a belt connection structural component.

8. The method according to claim 1 , wherein the structural insertion components are formed as a trim conduit.

9. The method according to claim 1 , wherein the structural insertion components are formed as armrest receivers.

10. The method according to claim 1 , wherein the structural insertion components are formed as rest pivot bearing areas.

11. The method according to claim 1 , wherein at least one trim hook is formed on a front side of the back shell.

12. The method according to claim 1 , wherein at least one bush is pressed into the vehicle seat structure.

13. The method according to claim 1 , wherein other structural components are arranged on the vehicle seat structure by a connector.

14. The method according to claim 1 , wherein the reinforcement ribs abut the frame structure on the front side of the back shell.

15. The method according to claim 1 , wherein the frame structure extends circumferentially around the inner portion of the back shell.

16. The method according to claim 1 , wherein the back shell is configured for use within at least one of a vehicle seat structure, a vehicle seat and a vehicle seat bench.