A planar parallel mechanism having a platform movable in a plane along three degrees of freedom is described Existing technology fails to provide a manipulator with three degrees of freedom, wherein the mechanisms for moving the manipulator move in a decoupled fashion A manipulator and method of supporting and displacing an object which provides a solution to this problem comprises a base (1) and a moving portion (2) and articulated support legs (A1,A2,A3) between the moving portion (2) and the base (1) The articulated support legs (A1,A2,A3) are connected to the base (1) by a first translational joint, and jointly restrict movement of the moving portion to displacements in a plane in two translational degrees of freedom and one rotational degree of freedom A decoupled displacement of the moving portion (2) along a first of the two translational degrees of freedom and a decoupled displacement of the moving portion (2) along the rotational degree of freedom both result from actuation of at most two of the first translational joints Actuators (3,3a,3b,6,7) are operatively connected to a different one of the first translational joints so as to selectively control the displacements of the moving portion (2) in the three degrees of freedom of the moving portion (2).

 
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