| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase working efficiency during the normal operation of a windmill. <P>SOLUTION: In this variable wing type wind force converting mechanism A, a pair of holding plates 10a, 10b are vertically installed at the upper and lower parts of a rotating shaft 11x supported vertically. Variable vanes 14 receiving wind force which are installed on the holding plates 10, 10b at predetermined positions in the radial direction and at predetermined angular intervals in the circumferential direction. A weight 18 is fitted to the end of the arm 17 of a connection member extending in the radial direction of the extension 13xe of the support shaft. An elastic member 13b is fitted to one of the support shaft 13x and the connection member and the variable vanes 14 are held in a fully opened state by its elastic force up to a predetermined wind velocity. The variable vanes 14 are formed to be opened and closed so that when the variable vanes are rotating over the predetermined wind velocity, the centrifugal force of the weight 18 overcomes the elastic force of the elastic member 13b, and the variable vanes 14 are closed according to the magnitude of the wind velocity. <P>COPYRIGHT: (C)2007,JPO&INPIT |
