| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate fatigue by long hours' use of a mouse by enabling a natural movement of a hand to perform mouse operation. SOLUTION: In an operation mouse for a computer which has a ball 4 in a bottom part and performs input by click switches 2 and 3 by following an rotation movement of this ball 4 and moving a cursor, it is made possible to reduce fatigue even after a long hours' operation by selecting the mouse shape and the arrangement of the click switches 2 and 3 so that a thumb side is in upper position of a little finger side in an operation state and enabling the mouse 1 to be operated in a state in which a hand is naturally put upon a desk. Also, the click switches 2 and 3 are arranged with some angles so that the thumb side is in upper position of the little finger side in the operation state and finger movement in natural state is enabled to operate the click switches 2 and 3.</p> |
