| 摘要 |
A poster display hoarding comprises a cable tensioning system for tensioning a poster. The poster is attached to a primary cable which extends around cable guides provided round a frame of the hoarding and the poster is stretched as the primary cable is tautened. A cable management system is provided whereby the primary cable is attached to a large diameter pulley and a tensioning cable is attached to a coaxial small diameter, such that small movements of the tensioning cable are converted into large movements of the primary cable. The tensioning cable may be attached to a manual winch and may pass through a tension retention mechanism. As well as tensioning the poster, the primary cable also enables the poster to be lowered or raised so that it can be changed without ladders. |
