H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
H01Q 1/10 (2006.01) H01Q 1/32 (2006.01)
Patent
CA 2046435
As the first aspect of the invention, an actuator in a power antenna device comprises: a worm gear provided on a shaft of the motor; a first gear unit integrally including a worm wheel and a small intermediate gear; a second gear unit integrally including a large internal gear and a part of a clutch device; reduction gears including the first speed reducing gears, a pair of the worm gear and the worm wheel, and the second speed reducing gears, a pair of the small intermediate gear and the large internal gear; a support board made of hard material such as metal and integrally fixed to casing, and which rotatably supports the first and second gear units on the side where the small intermediate gear and the large internal gear engage. As the second aspect of the invention, the actuator comprises: a cord case for casing a drive cord; first speed reducing gears placed close to the bottom of the cord case and inside an imaginary cylinder as the extended outer periphery of the cord case; a clutch device arranged in an upper part of the case and inside the internal periphery of the case; and second speed reducing gears arranged inside the internal periphery of the cord case.
Hosoya Yukiteru
Sato Masaei
Macrae & Co.
Mitsuba Corporation
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