| 摘要 |
<p>PROBLEM TO BE SOLVED: To sufficiently restrain an occupant when a collision occurs by moving a buckle in the direction of increasing a tensile force of webbing when predicting the collision of a vehicle. SOLUTION: A vehicle emergency condition detection means 11 outputting a signal due to the detection of a vehicle emergency condition is provided to drive the buckle 46 in the direction of increasing a tensile force of the webbing 25 by a buckle driving means 14 to impart pretension to the webbing 25 based on the signal from the vehicle emergency condition detection means 11.</p> |
