| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a position inputting device for making it unnecessary to clean a roller incorporated in the position inputting device while it is complicate and troublesome to clean the roller in a conventional manner. <P>SOLUTION: A roller is configured to come into contact with a sphere horizontally to the bottom face of a position input device over a horizontal face passing through the central point of the sphere. <P>COPYRIGHT: (C)2003,JPO</p> |
