| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize a pointing device capable of easily and efficiently controlling pressure when a ball for transfer detection is pressed by a ball halting means. SOLUTION: This pointing device is provided with a roller supporting lever 32 to be operated as a lever, a roll 15 to be rotatably installed on a working point of the roller supporting lever 32, a magnet 42 to be installed on a power point of the roll supporting lever 32 and an electromagnetic coil 41 to generate electromagnetic force by feeding current and to be installed so that the ball 10 is pressed by the roll 15 by repulsion between the electromagnetic force and the magnet 42.</p> |
