Patent ID: 8500108
Filing Date: 2013-08-06
Classification: F16F,Y10T

Abstract:
1. A disc spring system comprising: a first disc spring having a first radial inner portion defining a center hole therein; a first radial outer portion of said first disc spring; said first radial inner portion having a downwardly-depending portion and said first radial outer portion having an upwardly-extending portion; a first intermediate portion of said first disc spring which deflects under axial load, said first intermediate portion extending from said first radial outer portion to said first radial inner portion; said first intermediate portion comprising a first top intermediate side and a first bottom intermediate side, said first radial inner portion having a first top inner side and a first bottom inner side, wherein said first disc spring is stacked in parallel with a second disc spring, said first intermediate portion and a second intermediate portion of said second disc spring deflecting under axial-load; and wherein said first top intermediate portion comprises a first radially inward facing adjacent surface located at an endmost point of said first top intermediate side closest to said first top inner side and bounded by said first top intermediate side and said first top inner side, said first adjacent surface and a second radially outward facing adjacent surface of a second inner portion of said second disc spring-facing one another and bounding a space therebetween so as to avoid friction wear when said first intermediate portion of said first disc spring and a second intermediate portion of said second disc spring deflect under the axial load, said second radially outwardly facing adjacent surface located at an end of a second bottom inner side of a second radial inner portion of said second disc spring and bounded by said second bottom inner side and said second bottom intermediate side.