| 摘要 |
An overhead gantry system of the type used to mount traffic signs in constructed from a set of modulator parts. The main sections (5) are produced as metal extrusions that have tapped holes for securing preformed brackets at regular intervals along the length. The brackets have fixing points for the insertion of bracing struts (28) that are located along the length of the structure. Corner brackets are also used for fixing vertical and horizontal units together. |
