| 摘要 |
A structural truss, eg to provide support in building, exhibition, display lighting, decorative and other structures, comprises an elongate framework at opposite ends of which are connectors 3, 3' of a common forked form spaced limbs 11, 12 of which have registering holes 14 for a retaining pin or bolt 15 and are disposed to be vertically spaced apart in a normal orientation of the truss in use. The arrangement of the connectors 3, 3' relieves the retaining pins or bolts 15 of at least a substantial portion of the load of, and on, the truss when it is in use. In the illustrated embodiment the connectors enable the truss to be inverted from one orientation to another for use, and two of the trusses to be connected together end to end. Securing in different orientations is facilitated by having the limbs 11, 12 of each connector offset relative to an anchorage 9 of the connector to the framework, and having the limbs of a connector at one end of the framework offset in the opposite direction to the limbs of a corresponding connector at the other end of the framework. <IMAGE> |
