ARM STRUCTURE OF INTERNAL PRESSURE EXPLOSION-PROOF ROBOT

摘要

PROBLEM TO BE SOLVED: To easily adopt a desired explosion-proof structure with the simple constitution. SOLUTION: This arm structure is provided with a steel material arm member 14 having a cross-sectional shape set in an I shape or an H shape, a cover body 32 installed on the first housing part 18 side of the arm member 14 and a pressurized chamber 38 blocked up by and formed of the arm member 14 and the cover body 32, and first and second servomotors 80 and 82 are housed in this pressurized chamber 38.