| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide the operation mechanism of a slide type capacitance type force sensor equipped with a circular or annular shaped fixed electrode divided into four parts like sectors, a movable electrode slidably faced through a dielectric film to the fixed electrode surface and a measuring circuit which detects an inter-electrode capacitance for making the movable electrode slide to the fixed electrode by an operation to incline an operation key. <P>SOLUTION: This operation mechanism 10 is provided with an input shaft 3 made of hard materials, and configured of a short prism positioned at the center axis of a movable electrode surface 2 to transmit a horizontal force to be added to the short prism, and to make the movable electrode slide in a radial direction, an operation key 4 made of hard materials, and equipped with a recess part 5 opened downward in which the short prism of the input shaft is stored on the center axis, and configured to make a horizontal force act on the input shaft 3 by inclining the center axis, and equipped with a plane part 8 at the upper part and a pad 6 made of a rubber like elastic body, and configured to hold the body part of the operation key with its peripheral part fixed to a supporting part 7 surrounding the operation key, and to make a force to vertically restore the operation key act at the time of inclining the operation key. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
