ROTARY JOINT, FRAMEWORK CONSTRUCTION KIT, FRAMEWORK WITH ROTARY JOINTS AND METHOD FOR MANUFACTURING A ROTARY JOINT

摘要

A rotary joint (10) comprises a socket rod (2) having a socket rod flange (5) with a basically spheroid concave bearing surface (5a) at a first end, a housing nut encircling the socket rod (2) and having a threaded wrenching head, and a ball rod (6) having a basically spheroid convex bearing surface (6a) and threaded side walls (6c) around the bearing surface (6a). A diameter of the threaded side walls (6c) of the ball rod (6) corresponds to a diameter of the threaded wrenching head of the housing nut. A plurality of first guiding tracks (5b) are arranged on the concave bearing surface (5a) and are oriented into a first swivelling direction (S1), the socket rod (2) being swivable with respect to the ball rod (6) along the first guiding tracks (5b) into the first swivelling direction (S1). A plurality of second guiding tracks (6b) are arranged on the convex bearing surface (6a) and are oriented into a second swivelling direction (S2), the socket rod (2) being swivable with respect to the ball rod (6) along the second guiding tracks (6b) into the second swivelling direction (S2).