Joint connector, rotary joint, framework construction kit and framework

A rotary joint, comprising:

• a socket rod having a socket rod flange with an at least partly spheroid concave bearing surface at a first end;
• a housing nut encircling the socket rod and having a threaded wrenching head;
• a ball rod having an at least partly spheroid convex bearing surface and threaded side walls around the bearing surface;
• a mounting shank coupled to the socket rod or the ball rod with a shank end portion;
• and
• a joint connector ring comprising a connector body formed as a hollow cylinder defining a hollow surrounding a connector opening and an annular groove formed in a top surface of the cylindrical connector body as a trench running circumferentially around the cylindrical connector body and having an approximately constant depth within the connector body, the joint connector ring being fixedly connected to the mounting shank opposite to the shank end portion,
• a diameter of the threaded side walls of the ball rod corresponding to a diameter of the threaded wrenching head of the housing nut.

A framework construction kit, comprising:

• at least one rotary joint comprising:
• a socket rod having a socket rod flange with an at least partly spheroid concave bearing surface at a first end;
• a housing nut encircling the socket rod and having a threaded wrenching head;
• a ball rod having an at least partly spheroid convex bearing surface and threaded side walls around the bearing surface;
• a mounting shank coupled to the socket rod or the ball rod with a shank end portion;
• and
• a joint connector ring comprising a connector body formed as a hollow cylinder defining a hollow surrounding a connector opening and an annular groove formed in a top surface of the cylindrical connector body as a trench running circumferentially around the cylindrical connector body and having an approximately constant depth within the connector body, the joint connector ring being fixedly connected to the mounting shank opposite to its shank end portion,
• a diameter of the threaded side walls of the ball rod corresponding to a diameter of the threaded wrenching head of the housing nut;
• and
• at least one tubular interconnection strut connected to the joint connector ring.

A framework, comprising:

• a plurality of rotary joints comprising:
• a socket rod having a socket rod flange with an at least partly spheroid concave bearing surface at a first end;
• a housing nut encircling the socket rod and having a threaded wrenching head;
• a ball rod having an at least partly spheroid convex bearing surface and threaded side walls around the bearing surface;
• a mounting shank coupled to the socket rod or the ball rod with a shank end portion;
• and
• a joint connector ring comprising a connector body formed as a hollow cylinder defining a hollow surrounding a connector opening and an annular groove formed in a top surface of the cylindrical connector body as a trench running circumferentially around the cylindrical connector body and having an approximately constant depth within the connector body, the joint connector ring being fixedly connected to the mounting shank opposite to its shank end portion,
• a diameter of the threaded side walls of the ball rod corresponding to a diameter of the threaded wrenching head of the housing nut, the rotary joints being attached to a plurality of bearing structures;
• and
• a plurality of interconnection struts, each connected to the joint connector rings of the plurality of rotary joints.