| 摘要 |
A joint support structure comprising means forming a housing defining a chamber embodies an axially movable wall portion constituting a clamping device which forms one wall portion of the chamber. This chamber contains radially movable means and means responsive to movement of the axially movable wall portion to induce or accommodate a radial shift of said radially movable means. Means projecting outwardly of the housing includes a rod axially movable in response to movements of said radially movable means to clamp a related joint element to or release the related joint element from a defined seat. Various arrangements are provided to constitute the means responsive to movement of the axially movable wall portion, each of which dictates that essentially the total of the applied forces are translated into a direct radial movement of the rod or rods associated with the joint support structure. |
