A filler body (F) occupies at least part of the space beneath the cover cap (26) in the top of the backrest for the guide for the headrest support rod (14).The filler body extends right down to the point (21) where the guide is joined to the backrest struc...

Armrest comprises a guiding edge (41) for the guiding pin (S) of the locking element (32) which is formed from a notch (A) arranged between the tongue heel (W) and the tongue end (E) on one side of a longitudinal edge of the tongue parting (22). Preferred ...