| 摘要 |
PURPOSE:To prevent backlash by forming uniformly folded sections on the bottom edge section of a hollow truncated conical belleville spring, providing several stopper slots in the radial direction, and forming return sections on the side fronting rotating bodies of the slots. CONSTITUTION:Stopper slots 1621 cutting into folded sections 163 are provided to the bottom edge section 162 of a belleville spring 160, and the restriction of the peripheral surface is eliminated at the folded sections 163. The number of slots21 is properly selected, and a new characteristic nearly allied to the characteristic of the belleville spring without the folded sections 163. |
