| 摘要 |
<p>A vane (10, 20) for a rotary display apparatus comprises an elongate core member (30) defining a triangular cross-section. The core (30) is mountable for rotation about its long axis (28) when mounted in a rotary display apparatus in parallel with a set of similar vanes such that three display surfaces (12, 14, 16) can be presented. The core of aluminium say has a pair of parallel elongate lugs (54a, 56b) associated with each triangular side which are shaped to receive cooperating legs (72a, 72b) of a facet member (40, 42, 44) of resilient material. A clear acrylic is preferred. A respective facet member (40, 42, 44) is detachably mounted to each side (32, 34, 36) of the core and has a pair of opposed elongate slots (87a, 87b) for receiving the edges of a strip of display material. The slots (87a, 87b) are provided by reflexed lips (86a, 86b) and the outer edges (80a, 80b) of the facet members meet to define a triangular shape in cross-section. The core has three radially projecting parts (52a, 52b, 52c) that provide location and support for the facet members (40, 42, 44) at the corners of the triangle. The disclosed structure is particularly useful in making up cassettes (120) of vanes pre-loaded with strips of display material. <IMAGE></p> |
