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Parallel Kinematic Mechanism

  • US 20080093322A1
  • Filed: 10/04/2005
  • Published: 04/24/2008
  • Est. Priority Date: 10/11/2004
  • Status: Abandoned Application
First Claim
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1. A kinematic connection of a fixed platform (2) to a moving platform (3) with up to six degrees of freedom in closed kinematic chains, so-called parallel kinematics, where the connecting elements are actuators:

  • rods of variable length or rods of constant length with variable position of their base support points;

    possibly some passive rods;

    rods of constant length with base support points rigidly attached to the fixed platform; and

    possibly traction means;

    cables, chains, etc., wherein three connecting elements articulate at a common point of the moving platform (3) in the form of a pseudo-triple point (P3

    ), such that the pseudo-triple point satisfies one of the following definitions;

    a) each of the three connecting elements is separately attached near the points of attachment of the other two connecting elements to the moving platform;

    (b) two of the connecting elements are attached to the moving platform close to each other, and the third connecting element is attached to one of the other two connecting elements close to its point of attachment to the moving platform;

    (c) two of the connecting elements have a common point of attachment to the moving platform, and the third connecting element is attached to one of the other two connecting elements close to its point of attachment to the moving platform;

    (d) one connecting element is attached to a point on the moving platform;

    the second connecting element is attached to the first connecting element close to its point of attachment to the moving platform; and

    the third connecting element is attached to the second connecting element close to its point of attachment to the first connecting element;

    (e) one connecting element is attached to a point on the moving platform;

    the second connecting element is attached to the first connecting element close to its point of attachment to the moving platform; and

    the third connecting element is attached to the first connecting element close to the point of attachment to the second connecting element;

    (f) all three connecting elements are attached to one point on the moving platform.

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