| 摘要 |
<p>A modular barrier consists of a plurality of identical barrier sections. Each section (10) includes a base portion (12) surmounted by an upright portion (14). The upright portion has projections (16, 18) with substantially semicylindrical outer surfaces at its ends. Correspondingly shaped recesses (20, 22) are also provided. At a femal end, the base portion (12) includes a nose (28). The surface of the nose is a surface of rotation of the profile of the base portion (12). At the male end, the base portion (12) includes a correspondingly shaped cavity (30). The first and second projections (16, 18) and nose (28) are provided with bores (32, 34, 36). When the female end of the barrier section (10) is brought up to a male end of a similar section, the projections mate with one another and the nose (28) is received in the cavity (30) of the similar section. A hinge pin (not shown) may then be passed through the bores (32, 34) and (36). By means of this device, one barrier section can be articulated to the next and the joint between the two portions of adjacent barrier sections presents an essentially smooth profile irrespective of the angle between the two.</p> |
