| 摘要 |
PURPOSE:To provide electromagnetic shield for antennae in a tower and on an elevator car and facilitate the coordination of the two antennae by furnishing a channel-shaped metal bracket for fixation of antenna both inside the tower and on each elevator car, and fixing the antenna to a recess provided in each bracket. CONSTITUTION:Using a metal fixture 5, a cable antenna 3 is fixed to a channel- shaped bracket 1. which is fastened to a bracket 6 by a bolt 7. Confronting the cable antenna 3, another antenna 8 as a coupler to be installed on an elevator car is attached to another channel-shaped bracket 2 by a screw 9, and further secured to a bracket 11 using a bolt 10. Thus electromagnetic shield can be made by the channel-shaped brackets 1, 2, and it is possible to perform the shield and installation of the antennae 3, 8 simultaneously. |
