Patent ID: 6302385
Filing Date: 2001-10-16
Classification: F16F

Abstract:
A vibration isolation mount for connecting a vibrating member to a support structure, the mount comprising:a shear mount shaped to be seated in a support structure and including an upper contacting member positioned between said vibrating member and said support structure, a lower contacting member extending downwardly from said support structure, and a tubular portion having a central bore, the tubular portion being movable relative to the upper contacting member and the lower contacting member and being connected to the upper contacting member by an annular rib;a spacing collar retained in said bore;a rate washer having a base with a bore therethrough and having a raised stack positioned about a periphery of said washer to contact said support structure; anda fastener shaped to extend through said rate washer bore and said shear mount bore to connect said upper contacting member to said rate washer and attach said mount to said vibrating member, such that vibrations of said vibrating member in a downward vertical direction are dampened by said shear mount, vibrations of said vibrating member in an upward vertical direction are dampened by said rate washer, and vibrations causing said vibrating member to pitch and yaw relative to said support structure are borne by said upper contacting member;the annular rib including no stiffening insert and having a curvilinear cross-sectional shape with a first lateral portion connected to the tubular portion, a second lateral portion connected to the upper contacting member and a middle portion connecting the first and second lateral portions and extending in an axial direction relative to the tubular portion and upper contacting member, whereby the shear mount provides low rate shear control of low amplitude lateral vibrations of the vibrating member.