Patent ID: 7019701

Claim:
An antenna device mounted on a vehicle body, comprising: an antenna element; an antenna base, to which a distal end of the antenna element is attached, the antenna base comprising: a conductive screw projection, electrically connected with the antenna element and inserted into a hole formed in the vehicle body; a first insulative member, mounted on an outer face of the vehicle body to electrically insulate the screw projection from the vehicle body; a conductive washer, disposed inside the vehicle body such that the screw projection is inserted therethrough; a conductive nut, disposed inside the vehicle body to be screwed to the screw projection to form a conductive path between the antenna element and an electric equipment disposed inside the vehicle; and a second insulative member, disposed inside the vehicle body to electrically insulate the screw projection from the washer, and to electrically insulate the nut from the washer.