Seat tilt adjustment mechanism and zero-gravity vehicle seat

Abstract

The present invention relates to a seat tilt adjustment mechanism () and a vehicle seat including the seat tilt adjustment mechanism (). The seat tilt adjustment mechanism () comprises: a left and a right base link (); a left and a right tilt adjustment link (), wherein lower ends of the left and the right tilt adjustment link () are hinged to front ends of the left and the right base link (); a left and a right front link (), wherein upper ends of the left and the right front link () are hinged to front ends of a left and a right link () of a seat cushion skeleton assembly (); a transverse link (), wherein a left end of the transverse link forms a rotary connection with an upper end of the left tilt adjustment link () and a lower end of the left front link () respectively, and a right end of the transverse link () forms a rotary connection with an upper end of the right tilt adjustment link () and a lower end of the right front link () respectively; and a driving electric motor mechanism which, by means of a gear-rack structure, can drive the left () and the right tilt adjustment link () to rotate synchronously, so as to adjust a cushion tilt angle.