| 摘要 |
PURPOSE:To make a shift control device adaptable under any ambient conditions by integrally assembling a pilot control device and a belt transmission in a sealed or half-sealed housing, and controlling a servo adjusting device and the pilot control device with electric connection. CONSTITUTION:A pilot electric controller 110 is sealed and stored in the same chamber in a housing 27 storing a variable-diameter belt transmission 65, when a recycle motor 111 held by a cover 114 is driven, a shift controller continuously changes the shift ratio of the transmission 65 via a sprocket 113, a chain 74, and a large-diameter sprocket 73, and the rotation of the motor 111 is transferred to a fan. Internal circuits of the pilot controller 110, electric signal components of the motor 111 and movable portions are all stored in the housing 27. The belt transmission 65 such as a variable fan control device is made adaptable under any ambient conditions and ambient atmosphere. |
