| 摘要 |
PURPOSE: A seat of a vehicle is provided to prevent a driver from leaning toward one side by preparing a holder for holding both sides of the driver on both sides of a seat back. CONSTITUTION: When a vehicle suddenly turns on a curved road, a contact point bob of an interlocking bar prepared in a sensor(30) is contacted with a contact point terminal. A port on an air tank(51) and an air bag(42) side is opened in a solenoid valve(60) so that the air of the air tank enters the air bag. Herein, as the air bag is expanded and a holding member is rotated a certain angle, both sides of a driver are pressurized. When a vehicle travels on a straight road from the curved road, the contact point bob drops from the contact point terminal. Then the port is closed and the air bag is connected to the port leading to outside. Accordingly, the air of the air bag is discharged to the outside, and the holding member is returned to the original state by the restoration force of a spring fixed on a seat frame. Thereby, the held both sides of the driver are released.
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