| 摘要 |
PROBLEM TO BE SOLVED: To provide an on-vehicle replacement antenna 10 that can be attached to a vehicle by being replaced with an on-vehicle pole antenna and is less liable to be stolen even when the antenna is kept attached.SOLUTION: A concealment screw 14 is embedded in a screw hole 11d for concealment screw. The leading end part of the concealment screw 14 is brought into firm contact with the bottom face of a ring groove 13e. Thereby, the antenna holder 11 is attached to a connection shaft 13 so as not to rotate. Meanwhile, the leading end part of the concealment screw 14 is a little separated from the bottom face of the ring groove 13e, also, this leading end part is locked to a side face of the ring groove 13e, and thereby the antenna holder 11 is attached to the connection shaft 13 so as to be rotatable and so as not to be separable. As long as the presence of the concealment screw 14 is not found, and even if others try to detach the antenna holder 11 from the antenna boss 21, the connection shaft 13 does not rotate although the antenna holder 11 can be rotated. Accordingly, detachment of the connection shaft 13 from the antenna boss 21 is prevented. Thus, since the antenna holder 11 cannot be detached from the antenna boss 21, theft of on-vehicle replacement antenna can be prevented. |
