| 摘要 |
PROBLEM TO BE SOLVED: To provide an attaching/detaching tool for continuously and easily rotating a screwing part mounted on the lower part of an antenna element. SOLUTION: An attaching/detaching tool for an antenna is constituted of a cylindrical body 10 made of synthetic resin, and a through-hole 11 whose cross-section is shaped like hexagon is formed at the central part of the axial direction of the cylindrical body 10, and a slit 12 communicated with one corner part of the through-hole 11 is formed on the peripheral wall of the cylindrical body 10. An inner wall 11a of the through-hole 11 is formed so as to be fit into a screwing part 24 formed at the lower part of the antenna element 20 so that the both edge parts of the cylindrical body 10 can be constituted so as to be engaged with the screwing part 24. Taper faces 13 are formed at the peripheral edges of the openings of the both edge parts of the through-hole 11, and a taper face 14 is formed at the peripheral edge of the opening of the slit 12. Also, worked the outer surface of the cylindrical body 10 is knurled so that plural projecting and recessing parts 15 can be formed on the outer surface of the cylindrical body 10.
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