| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna device transportable by one vehicle, and allowing an antenna to be automatically expanded on a shelter, with a single-button operation, at use. Ž<P>SOLUTION: A post shown by a support point 6 is arranged at a predetermined position, for instance, a position in the vicinity of the upper surface of a shelter 3 for housing a radio apparatus connected to an antenna 1 in the inside; and an antenna base 2 for fixing the antenna 1 thereto is rotatably mounted around the post. An extensible cylinder 4, having a tip fixed to a side face of the antenna base 2, is extended/contracted by a button operation; in housing this antenna device, the antenna base 2 is rotated clockwise about the post to arrange the antenna 1 in a state of lying on its side to extend along the side face of the shelter 3; and when using the antenna device, the antenna base 2 is rotated counterclockwise at 90° so as to be moved into the expanded state where the antenna 1 is erected in the upper direction of the upper surface of the shelter 3. After moving the antenna 1 into the expanded state, an antenna fixing mechanism 7 is actuated to fix the antenna base 2. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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