Seat pan of an automobile vehicle seat including an anti-submarining crossmember

摘要

Seat pan (3) of an automobile vehicle seat including an anti-submarining crossmember (6) which extends crosswise and which can move towards the rear from a rest position to an extension position and towards the front from the extension position. The crossmember (6) is installed so as to pivot around a transverse axis (A) on a sliding carriage (7) guided in translation on the seat pan framework. Extension means (10) are arranged to connect the crossmember (6) and the carriage (7) so as to pivot the crossmember in relation to the carriage from the rest position to the extension position and energy dissipation means (9) connecting the carriage (7) to the seat pan framework (5) to exert a retention force on the carriage during movement of the carriage forwards.