| 摘要 |
A crash barrier for deployment on a mobile body comprises: a support member (12) for attachment to the mobile body; a bumper (14) spaced from the support member ((12); a guide system (16) for guiding the bumper (14) towards the support member (12) during impact; and an energy absorber (18) configured to absorb impact energy as the bumper (14) is guided towards the support member (12). The guide system (16) comprises first and second elongate members (22, 24), one end of each being pivotally coupled at a variable acute angle (a) to the support member (12), and a third elongate member (26) pivotally coupled to the first and second members (22, 24) to define with the support member (12) a parallelogram structure. Separation between the third member (26) and the support member (12) varies with the variations in magnitude of acute angle (a). |
