| 摘要 |
PURPOSE:To facilitate the constitution of a motor driven antenna by providing a control part in the driving circuit of a motor driven antenna motor and expanding and reducing the electric antenna by interlocking to turning on and off the electric power source. CONSTITUTION:Respective variable connecting pieces 15 are turned by an operating part 11 and the contacting position to a switch plate 12 is suitably selected. A motor 14 built in the case is turned together with a motor 4 for the expanding and reducing operation of an antenna, the switch plate 12 is turned by the built-in motor, and the expanding and reducing quantity of the antenna is controlled by the switch plate turned in proportion to the antenna expanding and reducing quantity in the relation with the variable connecting piece suitably selected for the contacting position. The control part is provided in the compartment such as a driving room, and consequently, the expanding and reducing operation of the antenna and the setting of the contacting position of the variable connecting piece by the operating part are executed in the compartment.
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