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Rotary joint, framework construction kit, framework with rotary joints and method for manufacturing a rotary joint

  • US 10,378,198 B2
  • Filed: 08/25/2016
  • Issued: 08/13/2019
  • Est. Priority Date: 08/27/2015
  • Status: Active Grant
First Claim
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1. A rotary joint comprising:

  • a socket rod having a socket rod flange with a basically 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 a basically spheroid convex bearing surface and threaded side walls around the bearing surface; and

    a concave-convex sliding washer with a basically spheroid convex washer surface and a basically spheroid concave washer surface;

    wherein a diameter of the threaded side walls of the ball rod corresponds to a diameter of the threaded wrenching head of the housing nut;

    wherein a plurality of first guiding tracks are on the concave bearing surface and are oriented into a first swivelling direction, the socket rod being swivellable with respect to the ball rod along the first guiding tracks into the first swivelling direction;

    wherein a plurality of second guiding tracks are on the convex bearing surface and are oriented into a second swivelling direction, the socket rod being swivellable with respect to the ball rod along the second guiding tracks into the second swivelling direction; and

    wherein a plurality of first washer guiding tracks are on the convex washer surface and oriented into the first swivelling direction and wherein a plurality of second washer guiding tracks are on the concave washer surface and oriented into the second swivelling direction.

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