| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna fitting nut with which ground of an antenna can securely be conducted to a body to be fitted. SOLUTION: The antenna fitting nut 4 is provided with a washer 5 positioned on an antenna main body 2-side, and a nut 6 screwed to a bolt part 3 of the antenna main body 2 through the washer part 5. The washer 5 is in an almost circular shape, and it has four first projecting parts 5a which are substantially arranged at equal intervals along an outer periphery. The first projecting parts 5a incline and project upward and outward, and tips have sharp shapes. The first projecting parts 5a of the washer 5 are pushed outward by contact pressure on a roof 1 in accordance with screwing of the nut 6 in the antenna fitting nut 4 to the bolt 3, and it tears off a coating layer 1b below the roof 1 so that it is scooped, and it passes through a metallic layer 1c. The antenna main body 2 to which the antenna element 2a is connected is fitted to the roof 1 of a vehicle. COPYRIGHT: (C)2005,JPO&NCIPI
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