Vehicle seat with automatic front anchoring, and vehicle comprising such a seat

A vehicle seat comprising a seat part adapted to be mounted on the floor of the vehicle by means of a rear connection and a front connection which include at least one catch, wherein the catch comprises:

• a frontwards open notch intended to engage with a first transverse horizontal spindle integral with the floor to pivot the seat rearwards, during the installation of this seat on the floor from a tipped over position, around said first spindle and to bring it into a use position where the seat part extends substantially horizontally and where the rear connection engages with means of fixing to the floor;
• a guide surface intended to engage with complementary means integral with the floor in order to bring the notch opposite the first spindle, during the installation of the seat, said guide surface being concave and being, in the use position of the seat, located approximately in front of and above the notch;
• and
• a finger which projects frontwards in the use position of the seat, this finger being intended to be inserted between the first spindle and the complementary means during the installation of the seat.