| 摘要 |
A mechanical linkage for attaching a first load-carrying member to a second load-carrying member includes an elongated race that defines an axis and at least one ball. The elongated race is formed with an aperture that is surrounded by two opposed faces and two opposed semi-circular surfaces. Importantly, each face is formed with a channel that extends in a direction that is substantially parallel to the direction of the axis of the race. The ball is formed with a cylindrical thru-hole that passes through the center of the ball to allow the ball to be attached to the first load-carrying member while disposed within the aperture of the race. The race holds the ball but allows for limited rotation of the ball and translational movement of the ball along the axis of the race. The race includes an extension for attachment to the second load-carrying member.
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