| 摘要 |
<p>A body of an industrial robot includes a fixed constituent part (11), and a plurality of movable constituent parts (12, 13, 14). The robot has air-tight chambers (15, 16, 17) in which at least some of the fixed and movable constituent parts are communicated with each other, and the pressure in which should be maintained at a level not lower than the level of the pressure of the external atmosphere. The air-tight chambers are provided therein with motors (18-23) for driving the movable constituent parts. A means (27) for driving and controlling the motors is connected thereto via electric cables provided in the air-tight chambers. The pressure switches (25) are adapted to detect the pressures in the air-tight chambers, and output a motor-stopping signal to the motor driving and control means when the pressure in the air-tight chambers drop below a predetermided level.</p> |
