| 摘要 |
PROBLEM TO BE SOLVED: To provide an air channel switching device which inhibits the air leakage to a part excluding an air lead-out part to which the air should be supplied, and improves the responsiveness so that the rotor can be smoothly rotated even immediately after the stop of air supply. SOLUTION: This air channel switching device comprises the rotor having an air inflow part in the rotating shaft direction, and an air outflow part communicated to the air inflow part in the circumferential direction, a housing 72 rotatably accommodating the rotor 71, and having an air inflow part in the rotating shaft direction, and a plurality of air outflow parts in the circumferential direction, and a motor 73 for rotating and driving the rotor 71 so that its air outflow part is communicated to one of the air outflow parts of the housing 72. The rotor 71 is molded into the approximately umbrella-shape, an inner face of the housing 72 is shaped corresponding to an outer face of the rotor 71, a material of high hardness is used for a shaft part 71m of the rotor 71 connected to a driving shaft 73i of the motor 73, and a soft material of low hardness is used in the umbrella part 71k, of the rotor 71. COPYRIGHT: (C)2003,JPO
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