| 摘要 |
A security barrier comprising: a rear support element having a top edge and a bottom edge; and a bulbous barrier element having a top edge and a bottom edge with a curved protruding section extending at least partially between the top and bottom edges, the protruding section extending away from the plane containing the top and bottom edges, wherein: the top edge of the support element meets the top edge of the barrier element; the bottom edge of the support element meets the bottom edge of the barrier element to form a lower support region that may rest on a surface; the security barrier comprises a rail engagement arrangement to engage a rail which is raised above, and parallel with, the surface; and the distance between the lower support region and the rail engagement arrangement may be adjusted. |
