| 摘要 |
<p>@ Callapsible aerial including bar-like base structure with aerial rods (2) stifty attached thereto. The base structure comprises bars (1) which are connected in pairs to each other via a longitudinal joint (5), the bars associated with different pairs (3, 4) being connected via transverse joints (6). In the operational state of the aerial the pivotal axis of the longitudinal joints (5) coincide, and the transverse joints (6) have separate pivotal axis. When a locking device (7) is released, the aerial rods (2) may be pivoted about the longitudinal joints (5) into a partially collapsed state, with the aerial rods on one side of the structure. The pivoting axis of the transverse hinges (6) then coincide so that the aerial rods can be swung about these joints to an entirely collapsed state. In this state the aerial rods (2) on the different bar pairs (3, 4) cross over each other.</p> |
