| 摘要 |
<p>PURPOSE:To enable control of a change in the rotation diameter and the number of revolutions of wind mill through simple constitution, by a method wherein plates, serving as a fulcrum of a blade, are vertically moved by means of a force of blades itself which are obliquely connected to an upper and a lower shaft and the one end is coupled to a central mounting shaft. CONSTITUTION:Blades 1 are mounted obliquely to an upper and a lower mounting shaft 3, and an end 2 of the blade 1 is obliquely located by means of a mounting shaft 4. Namely, the blade 1 is obliquely mounted to plates 6 and 10, and 2 sets of the plates, as shown in a drawing, to which the 2 or more blades 1 are attached, are superposed, and are obliquely connected to the end 2 part of the blade 1. A shaft 8, secured to the plate 6 serving as a fulcrum of the blade 1, is formed slidably over a vertical shaft 9, and spring, not shown, from which a magnet 5 is hung down, is incorporated in the shaft 8 and the vertical shaft 9. This constitution causes vertical movement of the plate 6, serving as the fulcrums of the blades 1, by means of the centrifugal force of the blades 1 itself, and enables change of the pitch of the blades 1 depending upon a wind direction and control of the number of revolutions.</p> |
