Vehicle seat

A vehicle seat, comprising:

• a seat cushion;
• and
• a seat movement mechanism configured to reciprocate the seat cushion between a first position and a second position different from each other in a predetermined direction;
• wherein:
• the seat movement mechanism includes
• a first rotary link and a second rotary link configured to rotate relative to a vehicle floor and rotate relative to the seat cushion when the seat cushion moves between the first position and the second position, and
• a biasing member configured to provide, to the seat cushion, biasing force in a direction from one end fixed to the vehicle floor toward the other end attached to the seat cushion;
• a virtual plane passing through a center line of a first rotary shaft configured to rotatably support the first rotary link and a center line of a first coupling shaft provided to couple the first rotary link to the seat cushion is a first plane;
• a virtual plane passing through a center line of a second rotary shaft configured to rotatably support the second rotary link and a center line of a second coupling shaft provided to couple the second rotary link to the seat cushion is a second plane;
• and
• in a zone in which the seat movement mechanism moves the seat cushion between the first position and the second position, both of the first rotary link and the second rotary link rotating relative to the vehicle floor rotate relative to the seat cushion, and in this manner, an intersection line between the first plane and the second plane is, while both of the first rotary link and the second rotary link incline to be closer to the second position than to the first position in the zone, positioned above the seat cushion and the biasing member biases the seat cushion toward the first position.