| 摘要 |
PURPOSE:To amplify a rotation by energizing a pendulum board by the rotation of a rotary board in an inertia moving direction to increase the turning force. CONSTITUTION:A switch S1 is operated to rotate a motor A, thereby rotating a shaft H1. Shafts E2, E3 are rotated through spur gears D1, D2 and ratchets B2, B3 by the rotation of the shaft H1, and rotary boards E1, E2 are further rotated. Operating DC electromagnets L1, L2 and a weight V are mounted at the contact plates of the boards E1, E2, and permanent magnets N1, N2 and a weight V are mounted on the pendulum boards F1, F2 with cam spur gears opposed thereto. The coil L1 is connected in series with a DC power source together with a variable resistor VR, a relay contact and switches S3-S6 through a silicon controlled rectifier 2 and a changeover switch 2 to construct a self-reset type DC switch circuit together with the coil L2. Thus, when the boards E1, E2 rotate, the boards F1, F2 are energized in an inertia moving direc tion to amplify the rotation at the dropping speed of the weight V. |
