| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve a structure allowing a movement for simply moving an output member 103 in a z-axis direction by an easy control. <P>SOLUTION: First, second, third and fourth linear actuators 104, 105, 108 and 110 include movable elements 104a, 105a, 108a and 110a moving in the z-axis direction, respectively. Each of the movable elements 104a, 105a, 108a and 110a is connected to the output member 103 by each of link mechanisms 106, 107, 109 and 112. When the output member 103 is moved at an optional position with respect to an x-axis and a y-axis and in an optional direction in the z-axis direction by optional amount, each of movable element 104a, 105a, 108a and 110a is moved in the optional direction by substantially the same amount as the optional amount. <P>COPYRIGHT: (C)2013,JPO&INPIT |
