| 摘要 |
PURPOSE:To endure against large centrifugal force due to a high speed rotation by engaging two bottomed cylindrical flywheels in opposite direction to each other, i.e., so that the bottoms are opposed and spaced and engaged. CONSTITUTION:The second flywheel 3 is opposed to the first flywheel so that the bottoms are directed oppositely, engaged with each other, and a magnet 31 is interposed between both. The magnet 31 is interposed between the projections 34 and 351, positioned and secured. The edge 22 of the flywheel 2 of the outside is plastically formed to be curled inside to hold the second flywheel 3. With this construction, it can endure against the large centrifugal force due to high speed rotation. |
