forcing it against the opening 38 of the sleeve the pressure of the rod will cause the sleeve to deform resiliently with resulting separation of the two segments 44 46 of the sleeve as the segments separate the opening enlarges sufficiently to allow the rod to pass between the two segments and to be removed from the fastener the lateral rod 14b may be reattached to the fastener by forcing the rod against the exterior faces of two segments of the sleeve to cause the segments to separate sufficiently to allow the rod to pass between the two segments to the interior or bore of the sleeve with reference to fig6 the lateral rod is made up of three segments 50a b c which are interconnected by means of an elastic cord 52 in the same manner as the tubes of the strut a sleeve 56 is attached to the end of segment 50c adjacent to an end of segment 50b and a like sleeve 58 is attached to the other end of the segment 50b the sleeves like sleeve 30 of the strut are for interconnecting the segments of the lateral rod so that their longitudinal axes are aligned like the strut the segments of the lateral rod may be disconnected as illustrated in fig6 and folded together for storage the structure of the.