Abstract: 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.

Abstract: The present invention provides a pointing stick device for use with a computer. The pointing stick device has a base plate having an aperture, a stick having a lower portion, at least one strain gauge attached on the lower portion, and a binding compound filling the space between the lower portion of the stick and the aperture of the base plate. The lower portion of the stick is tapered. The binding compound covers the strain gauges and fixes the lower portion of the stick vertically in the aperture of the base plate. When the stick is vertically depressed, the strain gauge installed on the lower portion of the stick senses the vertical downward pressure from reaction forces transmitted through the binding compound and generates the corresponding sensing signals.