Motor vehicle seat

Motor vehicle seat (1) comprising:

• a frame (2) covered by a padding cushion (3), said cushion being covered by a covering (4) made of knitted textile,
• a protection system secured to said frame, said system comprising an airbag (5) and a device for inflating said bag in an accident situation, knowing that:
• said cushion is provided with a passage (6) allowing said bag to be deployed outside said covering,
• said covering is provided with a weakened zone (7) of lesser tear resistance than the rest of said covering, said zone extending in a rectilinear reference direction (8) between two opposite parts (9a, 9b) of said covering and facing said passage,
• said parts present a mesh consisting of a plurality of rows (10) of structural loops (11) arranged side by side in said reference direction, each of said loops being linked to the loops (11) surrounding it by a plurality of interweavings (12),
• said seat being characterized in that said zone results from the knitting of said covering and in that each of said parts is provided with a thread (17) for blocking its elongation in a direction (18) perpendicular to said reference direction, said thread:
• having been knitted with said loops during the knitting of said covering,
• extending in zigzags by defining a plurality of rectilinear portions (19) extending in said perpendicular direction and a plurality of portions (20) for connecting said rectilinear portions to each other, said connecting portions extending generally in said reference direction,
• interweaving with said structural loops so as to be integrated into said covering.