| 摘要 |
The objective of the invention is to move a seat from a sitting area to an expansion area while protection performance for a passenger can be ensured. The vehicle seat device (30) is provided with a fixed slide rail (31), a movable slide rail (32), a seat (34) and a seat backrest (35). The fixed slide rail is arranged on a floor (22) of a vehicle body (21) and extends along the front and back directions of the vehicle body. The movable slide rail is capable of sliding in the front and back directions relative to the fixed slide rail. The seat is arranged on the movable slide rail. The seat backrest is capable of generating posture change relative to the seat so as to be in an up-right posture or a forwards inclining posture. When the seat backrest is in the forwards inclining posture, the seat can be allowed to slide to an expansion area (14) which is closer to the front than a common sitting area (13). The seat device is provided with a backrest posture keeping device (60) which is used for keeping the seat backrest to be in the forwards inclining posture when the seat is in the expansion area. |
