Zero free-play joint for deployable space structures

摘要

A hinged butt joint for connecting struts to multijoint fittings used in space structures is disclosed as two end fittings pivoted together, one of which is bifurcated and the other having a cammed butt end extending between the bifurcation with a pivot pin through aligned openings so that the fittings are rotatable to a desired angular position. Nominal manufacturing tolerances are used throughout. A wedge is forcibly fitted into the base of the bifurcation when the fittings are colinear, and bonded to the base in that position during manufacture or assembly, to preclude freeplay in the joint under alternating compression and tension leads and to create a solid mechanical path though which load is transmitted and heat and electricity conducted.