Seat having back rest with different pivots for tilting and for folding level

摘要

A first separable pivot is at the height of the pelvis of an occupant and has a guide for supporting a back rest while the support thereof is being transferred from the first separable pivot to a second separable pivot near the bottom of the back rest. A pin secured to the back rest is positioned in a toothed slot for different positions of tilt while the first pivot is engaged and during folding is positioned in an adjusting arcuate slot for maintaining the second pivot engaged.