| 摘要 |
<p>PURPOSE:To provide a large capacitance without the strength of a stator lowered and at the same time to simplify the manufacturing process to reduce a manufacturing cost. CONSTITUTION:This variable capacitor is provided with a stator 2 in which a stator electrode 1 is formed inside and an external electrode 7a electrically connected to the stator electrode 1 is formed outside, a rotor 3 rotatably mounted on the stator 2, a spring member 4 provided on the upper surface side of the rotor 3 to press the rotor 3 against the stator 2, a rotor lead-out electrode 5 electrically in continuity to the rotor 3 and a shaft 11 which passes through the stator 2 and the rotor 3 and also is engaged with the rotor 3 in such a manner that the rotor 3 rotates together therewith and at the same time is engaged with the spring member 4, thereby being held so as to be able to slide and rotate with the rotor 3 being pressed against the stator 2 with the elastic force thereof, in the lower-side end surface of which a driver groove 14 is formed.</p> |
