| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve operability at a standing position or sitting position by providing the unit with a foot operator containing a foot operated electric switch, a display selector cooperating with this switch, and an execution means for selected screen modes. SOLUTION: A foot operator 16 is composed of a heel rest table 17, a heel circumference wall 18, a foot sidewall 19, and a pedal 21. One or more mode select switches 23, 23' are provided inside a pedal front table 22. With a center of gravity on the pedal front table 22 using the front of a foot sole, a toe is moved up and down to actuate the switch to select modes. Switch manipulations are also performed in combination with an up and down/right and left operations with a heel as a center or a forth operation of toe while the heel is shifting. The average of these is outputted from transmitters 32 and 32' to either of AND circuits 34 and 34' of a computer 37. Outputs of average compatible mode output circuits 35 and 35' are outputted to the other AND circuit 34 or 34'. If the both are coincide, the output signal is outputted to a display 16, and a selected mode is displayed.</p> |
