Patent ID: 6181327
Filing Date: 2001-01-30
Classification: G05G

Abstract:
A computer joystick comprising:a housing having an opening installed at its top;a control stick comprising a handle at its top section, a ball-shaped portion at its middle section rotatably installed in the opening of the housing, and a guiding knob at its bottom section;two mutually perpendicular sliding channels horizontally installed in the housing;two guiding plates slidably installed in the two sliding channels, each guiding plate comprising a protruding button;a sliding plate slidably positioned in the housing comprising a recess for engaging the guiding knob of the control stick and two linear sliding holes perpendicular to each other for engaging the two protruding buttons of the two guiding plates separately; andtwo optical encoders installed in the housing for detecting displacements of the two guiding plates in the two sliding channels and generating corresponding displacement signals;wherein when the handle at the top section of the control stick is horizontally rotated, the guiding knob at the bottom section of the control stick will actuate the sliding plate horizontally, and the two linear sliding holes of the sliding plate will concurrently drive the two guiding plates by using the protruding buttons of the two guiding plates so that the two optical encoders can generate the displacement signals corresponding to the displacement of the control stick.