| 摘要 |
<p>An improved rate controlling fulcrum surface for use with a Belleville spring having a cone height of the unslotted spring portion of about 1.7 to about 2.3 times the spring thickness. The fulcrum has a convex surface on which one face of the spring moves as a load is applied to the spring. The fulcrum is ring shaped and has a relatively wide convex face, the movement of the face of said spring on said fulcrum acting to modify the inherent rate variation in the Belleville spring to provide a greatly extended range of a substantially constant spring load or maintain a substantially linear rate of spring deflection during use.</p> |
