| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for preventing a rotary joint from being worn by sliding.SOLUTION: In the rotary joint configured to electrically connect a stationary body and a rotating body, a base part is electrically connected to any one of the stationary body and the rotating body. A rotary shaft 18 is electrically connected to the other of the stationary body and the rotating body and is rotatable relatively to the base part. A first plate part 24 is provided successively to or engaged with the rotary shaft 18 and rotated relatively to the base part while being linked with the rotary shaft 18. A second plate part 30 is opposite to the first plate part 24. A plurality of balls 26 conduct the first plate part 24 and the second plate part 30 while being held between the first plate part 24 and the second plate part 30. A ring body 32 is abutted to the base part and the second plate part 30 and conducted and energizes the second plate part 30 toward the first plate part 24. |
