| 摘要 |
<p>An industrial robot of an explosion preventing type in which air-tight chambers (30, 31-33) are formed in a robot body (10), robot-moving portions (12, 13, 14) are contained in the air-tight chambers, a compressed gas is supplied from outside the robot body (10) to maintain the internal pressure, the compressed gas is taken out from a rear portion (33a) of the air-tight chambers (30, 31-33) and is exhausted out of the robot body (10) to generate a circulating stream of gas in the air-tight chambers (30, 31-33), and a ventilation tube (70) is provided to exhaust inflammable gas that enters from the external side together with the circulating stream of gas when the robot is at rest.</p> |
