| 主权项 |
1. A movement device configured for moving a payload, the movement device comprising:
a first support; a second support; three intermediate supports, each operatively disposed between the first support and the second support; wherein each of the three intermediate supports is jointed to the first support at a respective pair of first joints and jointed to the second support at a respective pair of second joints; wherein the second support is configured for supporting the payload; wherein one of each pair of the first joints is pivotable about a respective upper first axis of rotation such that the respective intermediate support is movable relative to the first support; wherein the other one of each pair of the first joints is pivotable about a respective upper second axis of rotation such that the respective intermediate support is movable relative to the first support; wherein one of each pair of the second joints is pivotable about a respective lower first axis of rotation such that the second support is moveable relative to each of the intermediate supports; wherein the other one of each pair of the second joints is pivotable about a respective lower second axis of rotation such that the second support is moveable relative to each of the intermediate supports; wherein each of the upper and lower first axes of rotation extend in spaced and generally parallel relationship to one another; wherein each of the upper and lower second axes of rotation extend in spaced and generally parallel relationship to one another; wherein each of the upper and lower first axes of rotation are in spaced and generally perpendicular relationship to each of the upper and lower second axes of rotation such that the second support is moveable relative to the first support in only two degrees of freedom; wherein the second support is movable relative to the first support in a first horizontal direction, relative to the ground, in response to each of the two first joints, corresponding to each of the three intermediate supports, pivoting about the respective first axes of rotation; wherein the second support is movable relative to the first support in a second horizontal direction, relative to the ground, in response to each of the two second joints, corresponding to each of the three intermediate supports, pivoting about the respective second axes of rotation; and wherein the movement of the second support in the first horizontal direction is perpendicular to the movement of the second support in the second horizontal direction. |
