| 摘要 |
A support arrangement which allows pivoting of a non-rotatable shaft has a flexure structure and a pair of axially-displaced inner and outer hubs respectively connected to, and disposed inwardly and outwardly of, the flexure structure. The flexure structure is composed of disk-shaped flexural elements disposed in stacked, axially spaced relation to one another and connected peripherally one to the next. The flexural elements together define a frictionless, laterally stiff, fulcrum or pivot point about which the shaft can pivot through a predefined range of angular motion. The inner hub is attached to an inner end one of the flexural elements at an interior peripheral edge thereof, whereas the outer hub is attached to an outer end one of the flexural elements at an exterior peripheral edge thereof. The shaft extends axially through the bores in the hubs and an opening in the flexure structure along a common axis, and is rigidly attached to the inner hub. The outer hub which supports the inner hub and thus the shaft, via the flexure structure, is attached to an external support structure. |
