Patent ID: 8474872
Filing Date: 2013-07-02
Classification: B60N,B60R

Abstract:
1. A passive safety device comprising: an acceleration detecting unit that detects an acceleration of a vehicle; a seat adjusting unit that expands a seat side of a seat in order to prevent an occupant sitting down the seat from moving, the seat adjusting unit including a left side support and a right side support that are adapted to be adjacent a left side and a right side, respectively, of the occupant sitting in the seat so that the left side support and the right side support face one another; a safety belt adjusting unit that controls tension of a safety belt worn by the occupant; and a control unit that controls an expansion of the seat side so as to decrease a distance between the left side support and the right side support and the tension of the safety belt through the seat adjusting unit and the safety belt adjusting unit, based on the detected acceleration of the vehicle, wherein when the direction of the acceleration working on the occupant due to inertia to move the occupant in the vehicle by the detected acceleration of the vehicle is a front-side direction opposite to a shoulder where the safety belt is put on, the seat adjusting unit largely expands the seat side larger in comparison with a direction other than the front-side direction.