ANTENNA APPARATUS

• Main Author: ONO SADAO
• Format: Patent
• Language: English
• Published: 11.11.2004
• Edition: 7
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

PROBLEM TO BE SOLVED: To provide an antenna apparatus in which it is a robust oscillating mechanism without requiring resin molding because of an elastic member being inserted, and hence the number of parts is reduced. SOLUTION: A bottomed cylindrical member 12 is inserted between a pair of arms 16a erected on an antenna base 16, which member is formed with a conductive member at a base end of an antenna element 10 taking an oscillating support shaft 22 as an axial direction, and the oscillating support shaft 22 is disposed on the pair of the arms 16a and the cylindrical member 12. A feeding fitting 16c is disposed on the one arm 12a on which the bottom of the cylindrical member 12 abuts, and an engagement member 18 is disposed across an opening in the cylindrical member 12 such that it is movable axially and is prevented from mutually axially rotating. Further, an engagement member 20 is disposed on the other arm 12a so as to be prevented from mutually axially rotating, to which the engagement member 18 having a predetermined axial attitude is elastically engageable. Moreover, the engagement member 18 is elastically energized to the side of the engagement member 20 by loosely fitting, in compression, a spring coil 26 to the oscillating support shaft 22 between the bottom and the engagement member 18 in the cylindrical member 12. COPYRIGHT: (C)2005,JPO&NCIPI