20120004089 | Lid-Section Mechanism for Rotor - The lid-section mechanism for rotors comprises a lid, a knob, a knob shaft, a circular plate, a plate spring, and an elastic body. The circular plate is attached to the surface of the lid that faces the knob and has click holes that are formed on a circle. The plate spring is attached to the surface of the knob that faces the circular plate and, if the distance between the knob and the lid is equal to or less than a predetermined value, the plate spring is caught in the click hole. The elastic body pushes the lid against the rotor depending on the distance. Turning the knob when the distance is equal to or less than the predetermined value repeats the cycle in which the plate spring is caught in the click hole and then the plate spring is bent and removed from the click hole. | 01-05-2012 |