Patent ID: 6089164
Filing Date: 2000-07-18
Classification: B66C

Abstract:
A gantry system, the gantry system comprising:a gantry cross member, the cross member being movable along an axis of movement; andat least two essentially parallel support beams supporting the cross member, the axis of movement of the cross member being essentially perpendicular to the at least two parallel support beams, at least two of the support beams each having a horizontal surface and a vertical surface, and at one point of along cross member, the cross member is supported by one of the support beams through a fixed bogy and at another point, the cross member is supported by another of the support beams through a spring bogy wherein a payload is supported and movable along the cross member,wherein the fixed bogy includes a frame supporting load carrying wheels vertically mounted and effective to roll along the horizontal surface of one of the support beams, and horizontal wheels are effective to roll along the vertical surface of one of the support beams; anda single drive to move the crossmembers along the support beams, andthe spring bogy includes a frame supporting load carrying wheels vertically mounted and effective to roll along the horizontal surface of one of the support beams, and horizontal wheels effective to roll along the vertical surface of one of the support beams, wherein the vertical surfaces face opposite directions and the spring bogy further comprises a spring mechanism effective to urge the horizontal wheels toward the vertical surface on which it rolls.