come to the ball and glass

摘要

A joint includes a shaft on which a ball is formed, and a socket body about the ball. End retainers are fixed to the shaft on either side of the socket body, and annular resilient members are positioned on either side of the socket body and in contact with the end retainers and socket body to form a sealed joint. The resilient members are held in a compressed state, and limited rotation of the socket body about any axis perpendicular to the shaft, and about the longitudinal axis of the shaft, is permitted, the deflection of such resilient members allowing such rotation.