| 摘要 |
<p>PURPOSE: To provide the device with which an operator can surely and easily input a rotational angles around three axes. CONSTITUTION: This device is composed of a spherical object 1 to be grasped by the operator, three or more small balls 2 for holding the spherical object 1 so as to rotate it around orthogonal axes, sensors 3 for detecting the rotating angles of small balls 2, arithmetic unit 4 for finding the rotating angles of the spherical object from the outputs of the sensors 3, suction nozzle 5 and negative pressure generator 6 for surely bringing the spherical object 1 into contact with breathing. The small balls 2 are arranged so that the spherical object 1 can stably ride on them, and the spherical object 1 is let ride on those small balls. The suction nozzle 5 is arranged near the center of a polygon composed of plural small balls 2 and connected with the negative pressure generator while securing a little distance to the spherical object to suck air so that the spherical object 1 can stably touch the small balls 2.</p> |
