US 12,031,600 B2
Vibration isolator with hard friction bushing
Jeremy Dyess, Tucson, AZ (US)
Assigned to Raytheon Company, Tewksbury, MA (US)
Filed by Raytheon Company, Waltham, MA (US)
Filed on Jun. 24, 2022, as Appl. No. 17/808,640.
Prior Publication US 2023/0417302 A1, Dec. 28, 2023
Int. Cl. F16F 13/00 (2006.01); F16F 15/02 (2006.01); F16M 13/02 (2006.01)
CPC F16F 13/005 (2013.01) [F16F 13/00 (2013.01); F16F 15/022 (2013.01); F16F 2222/04 (2013.01); F16F 2232/08 (2013.01); F16M 13/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A vibration isolator comprising
an upper bushing;
a lower bushing;
a friction bushing that is in contact with and slides relative to both the upper bushing and the lower bushing; and
a fastener having a shaft that passes through the upper bushing the lower bushing, and the friction bushing, wherein the friction bearing is a close fit around the fastener shaft,
wherein the upper bushing has an inward-facing upper bushing chamfered surface that engages an upper sloped surface of the friction bushing;
wherein the lower bushing has an inward-facing lower bushing chamfered surface that engages a lower sloped surface of the friction bushing,
wherein the friction bushing is captured between the upper and lower bushings and the shaft of the fastener.