| 摘要 |
The present invention provides a speed control system, a speed control wheel mechanism and a spring compression system where magnetism is used as a unique speed reduction means to control excessive speed of a free rolling wheel, roller or pulley. The action takes place where a plurality of braking fins between two side plates are forced outward by the means of centrifugal force into one or more magnetic braking calipers. The braking fins are retained by the means of springs that are overcome by inertia of the centrifugal force with increasing speed. With the addition of the spring compression system using multiple springs of different compressive resistance over a wire rope or cable, a cushioning effect can be achieved over any given distance depending upon the speed and weight of the vehicle or device. |
