Hydro elastic articulation for actuating rod in motor vehicle, has elastically deformable element arranged such that element is stressed by shearing during radial displacements of actuating part due to compression/expansion of chambers

摘要

The articulation has an outer body (3) for housing an actuating part, and an elastically deformable element interposed between the part and the body. The element is conformed for forming sealed incompressible fluid e.g. oil, chambers (4, 5) between a portion of the element and an inner surface of the body. Each chamber is provided against an outer surface of the part for allowing radial displacements of the part relative to the body by compression/expansion of the chambers. The element is arranged such that it is stressed by shearing during the displacements of the part. Independent claims are also included for the following: (1) an actuating device comprising a hydro elastic articulation and an actuation controlling system (2) an actuating rod comprising an actuating device and a rigid arm.