Patent ID: 7509886

Claim:
Mechanical structure providing motion in six degrees of freedom, which comprises: a. A main plate; b. A base; c. At least three supporting structures, each comprising a lower bridge section supported by the base, and an upper section connected to said bridge section and to said main plate, wherein: I) Said bridge section comprising two supporting plates, two intermediate plates, and one middle plate, all being serially connected one to another by four hinges; II) Each pair of said supporting plates being slidable in linear displacement parallel to the base; III) Said upper section comprising two plates, a lower plate connected to said middle plate by a fifth hinge transverse to said lower plate but longitudinal with respect to said middle plate, and an upper plate connected to said lower plate by a sixth hinge longitudinal and connected to said main plate by a seventh hinge; d. At least six linear motors, wherein each of said linear motors is connected to one of said supporting plates, for applying a force thereon to effect a linear displacement of said plate; and e. A control unit for determining the linear displacement of each linear motor.