| 摘要 |
<p>PURPOSE:To combine a circular motion and a linear motion on one base by engaging one center of rotation with a linear motion frame having the opposite sides fit to side frames through an eccentric cam and engaging the other center of rotation with a rotary base mounting the opposite side frames and a linear motion base, thereby rotating the one and the other concentric shafts independently. CONSTITUTION:Concentric centers 11, 12 of rotation are engaged, respectively, with independent drive motors 1, 1 where the inner center of rotation 11 is coupled with an eccentric cam 31 which is imparted with eccentric rotary motion. A linear motion base 4 has the opposite sides fit to side frames 5 through parallel bearings 9 and the linear motion base 4 is engaged with the eccentric cam 31 through a rotary bearing. The other center of rotation 12 is coupled directly with a rotary base to rotate the rotary base and also imparts rotation to the linear motion base 4 and the side frames 5 mounted thereon. When the center of rotation 11 rotates but the center of rotation 12 is stationary, the rotary bearing is pressed by the eccentric motion of the eccentric cam 31 and the linear moving base 4 moves straight along the side frames 5.</p> |
