摘要 |
This device is a computer mouse according to engineering of the human body. The existing mouse is inconvenient in view of the following: 1) fingers become tired due to tension of the thumb and the middle finger when used for hours, 2) the movement of the point grows dull, 3) it is inconvenient to click twice when the double clik is necessary. The device has improved such inconveniences as follows: by grasping it like a pencil, 1) fingers are always comfortably free from tension, 2) the movement of the point is delicate and free, 3) devised so as to be one click when pulled short, while double click when pulled long, thus this is a very comfortable computer mouse. |