| 摘要 |
<p>A drive system comprises a movement mechanism comprising a spherical holder (1) and a spherical bowl which, one inserted into the other, are rotatable relative to each other about an X-axis and a Y-axis, which axes lie in a plane substantially coinciding with the plane of the outside edge of the holder or extending parallel thereto. Viewed in the X-Y plane, the holder comprises two mutually perpendicular slots (4,5), provided through the holder, each of said slots having an adjusting element provided therein for motor displacement, which adjusting element is further freely movable in the bowl in a direction, viewed in the X-Y plane, perpendicular to that of the relevant slot in the holder. Through the relevant slot in the holder, the adjusting element is in an operative connection with a drive mechanism placed in the holder, which drive mechanism is connected to a motor that is likewise placed in the holder.</p> |
