| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gear in which air current can be generated, and the strength can be maintained without a drive source. <P>SOLUTION: The gear 76 has a gear main body 80 and an impeller 82 coaxially rotating, and a plurality of blades 84 are installed in the rotational direction side of the impeller 82. The gear main body 80 has, for example, a spur gear or a bevel gear formed on its circumference so that the drive force can be transmitted. The gear main body 80 and the impeller 82 are mutually connected by a connector 86 in the inside diameter part, and integrally rotated around the connector 86. The gear main body 80 and the impeller 82 may be integrally cast, for example, with a molten resin. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
