| 摘要 |
A security barrier 10 comprising a support 12, 14 and a barrier member 18, 20 movable relative to the support between stowed and deployed positions. The barrier member has at least two telescopic posts, the inner post 20 being lowermost in the deployed position. A linkage is provided between the outer post 18 and the inner post. In use, motion of the outer post between the stowed position and the deployed position causes corresponding motion of the inner post. In the deployed position an upper end of the inner post is disposed at a predetermined distance from a lower end of the outer post. The inner post may be provided with a reinforcing member. Preferably, the outer post includes a base plate 24 that is disposed at ground level when in the deployed position. |
