| 摘要 |
An elastomeric joint (100) that comprises a wing plate (102) including a base plate (104) generally extending along a first axis and generally perpendicular to a second axis is provided. The wing plate further includes a mutually opposite first and second bushing-receiving bores (120) co-axially aligned relative to a third axis perpendicular to said first and second axes. A plurality of elastomeric shear pads (106) is affixed on mutually opposite sides of the base plate. The plurality of shear pads is stacked generally perpendicular to the second axis. Top and bottom elastomeric bushings (122) are received by said respective bushing-receiving bores. Each elastomeric bushing comprises a plurality of torsion pads (124) and includes a respective pin-receiving bore(128). Each of the shear pads and torsion pads comprises a plurality of alternating layers of resilient and nonextensible materials, wherein the shear pads are compressed to provide stiff opposition to forces along said second axis, while accommodating differential displacement along the first axis and/or along the third axis, and wherein said elastomeric bushings are compressed to enable pivotal movement about the third axis while providing stiff opposition to radial forces on the bushings. |
