| 摘要 |
The present invention relates to a pointing stick device. The pointing stick device comprises a base plate, a stick, a cap and a base stand. The bottom end of the stick is vertically mounted in a hole in the base plate, and a plurality of strain gauges are installed around the middle portion of the stick to sense pressure and generate corresponding sensing signals. The cap has a cone-shaped mouth to contain the top end of the stick and the middle portion of the stick. The base stand, of a cone shape to match the mouth of the cap, covers the middle portion of the stick. A plurality of strain gauges extend into the middle portion of the stick and are covered by the base stand so that the top ends of the strain gauges sense the pressure coming form cap, improving the sensitivity of the pointing stick device.
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