| 摘要 |
<p>PROBLEM TO BE SOLVED: To dispense with guide mechanism by installing sensors at a seat body, and advancing the seat body straight by a driving body installed at the seat body while making a track correction between the sensors and detecting markers installed so as not to impair levelness of the floor face. SOLUTION: When a moving seat body 17 starts advancing, first and second advance sensors 14a, 14d are arranged outside of first and second advance detecting markers. When the body 17 starts meandering to the right due to a floor face state or the like, the first advance sensors 14a approaches the first advance detecting marker, and the sensor 14a is put in operation and outputs a signal. Then a main control panel 18 decelerates a first driving part 8a driving the left side part of the body 17 so as to make a track correction of the body 17 to the left. When the sensor 14a goes away from the detecting marker, operation is stopped, and the main control panel 18 equalizes the speed of the driving parts 8a, 8b again. When the body 17 meanders to the left, the sensor 14d is put in operation, and the driving part 8b is decelerated to correct the body 17 to the right. The floor face of a gymnasium or the like can therefore be used safely.</p> |
