| 摘要 |
An improved ball jointed link includes a male ball at one end which is received in a female socket in an adjacent link. A central aperture extends through each of the links between the male ball and the female socket. The male ball is preferably more resistant to radially inward deformation than the female socket. A clamp which secures adjacent links together may thus be tightened to support relatively great loads. The male ball may have a greater wall thickness than the female socket, or may be formed of hardened metal. In a further feature, the clamps used to secure adjacent links have a ledge which abuts an axially forwardmost edge of the female socket to ensure the clamp is properly positioned on the links. |
