| 摘要 |
<p>The safety structure consists of a rigid central bar (1) inside a concentric tubular structure (2) fixed to the seat back rigid protection structure (3, 3a). One of the bars (1, 2) is connected to a component (4) that is deformable by twisting when one of the bars is subjected to torsion, with one end of the deformable component connected to the central bar and the other (6) fixed to the tube. The joint between the first end and the central bar is in the form of a nut (10b) that slides between the bar and tube on a system of grooves, lugs and spiral ramps.</p> |
