| 摘要 |
PURPOSE:To improve economics, safety and operational efficiency with the operation simplified through extremely-simple unit constitution, by making it possible to build up an antenna unit by raising up and turning the antenna unit after being assembled while laid on an installation surface. CONSTITUTION:A couple of X-axis bearing parts 2 support main reflex mirror part 1 rotatably and then prescribe its elevation axis, namely, the X axis, and a couple of Y-axis bearing parts 3, supported on antenna installation base 4, prescribe a rotation axis perpendicular to the X axis, namely, the Y axis and support antenna support structure body 5 rotatably. To pin joints 5a and 1a, and 4a and 5b, X- expander and Y-expander 8 are linked expansibly. Because of the constitution like this, the antenna unit can be lain down on the antenna installation surface by turning the antenna support unit on the Y axis; and it is assembled while being lain on the installation surface at a lower position and raised up immediately after its assembling, so that it can be built upright. |
