| 摘要 |
PURPOSE:To secure the engagement between teeth inspite of the amount of rotation by a method wherein a circular ring, having teeth around the periphery thereof, is held by an elastic member with respect to the center thereof and a circular disk, having a diameter smaller than the inner diameter of the circular ring, is provided concentrically at the inside of the circular ring. CONSTITUTION:The elastic member 6 is connected to the circular ring 4, having a plurality of teeth 4a therearound, and the circular ring 4 is held with respect to the center of the elastic member 6. The disk 7, having the diameter smaller than the inner diameter of the circular ring 4, is provided concentrically at the inside of the circular ring 4. According to this method, the amount of deformation of the circular ring 4 regulates the deformation of the circular ring 4 so as to obtain a proper meshing condition depending upon the kind of the circular disk 7, therefore, a backlash is decreased and the engagement of the teeth may be secured inspite of the magnitude of the rotating force therefor. |
