| 摘要 |
PURPOSE:To obtain a straight blow off stream and miniaturize the magnets by using a pair of electromagnets and a controlling spring. CONSTITUTION:Flat plate shaped wind direction guiding plates 4a-4c are provided in parallel in a main fluid passage 3 within a frame body 2 in a swingable manner by pivots 5a-5c, and the rear ends of the guiding plates are connected by a connecting rod 11, both ends of the connecting rod 11 being joined to the free ends of operating rods 9a and 9b by pins in a freely rotatable manner. The operating rods 9a and 9b are made of a magnetic material. One end of each of operating rods 9a and 9b is rotatably connected to the inner end of each of L-shaped brackets 6a and 6b, and absorbed by electromagnets 8a and 8b. A controlling spring 12 is interposed between the center of the rear end of the upper wall plate of a frame body 2 and the rear end of the wind direction guide plate 4b. When electromagnets 8a and 8b are turned OFF, the wind direction guiding plates 4a-4c are restored to and retained at the neutral position, and when the electromagets 8a and 8b are turned ON, the guiding plates are swung from neutral positions to deviated positions. |
