| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna strut that facilitates installation within a short time, even in the night or on a rainy day and with which a coaxial cable can also be reliably connected simultaneously with strut connection. SOLUTION: An antenna strut 11 is configured with a prescribed height by connecting struts 12a, 12b, .... The upper-side strut 12a includes: a strut fastening nut 31 outside a lower end; a tapered part with an outer diameter at a distal end side being reduced sequentially on an outer circumferential surface of the lower end; and a jack side connector 40 inside the lower end. As for the lower-side strut 12b, its diameter of an upper end is formed a little large, so that the lower-side strut can be connected with the strut 12a, and there are provided a male screw on an outer circumferential surface of the upper end, a tapered part on an inner peripheral surface of the upper end, and a plug-side connector 58 inside the upper end. When connecting struts, the strut fastening nut 31 of the strut 12a is screwed with the male screw of the strut 12b and fastened, the tapered part at a side of the strut 12a is slid along with the inside of the tapered part at a side of the strut 12b, the struts 12a, 12b are coupled and simultaneously, the connectors 40, 58 are connected. COPYRIGHT: (C)2011,JPO&INPIT |
