| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotation mechanism for making an operation link have a stable posture under any working posture by imparting energizing force to the operation link to be equal to application of gravity of an optional size in an optional direction.SOLUTION: This rotation mechanism 1 includes: a vertical support member 3 extending upward in a vertical direction; an inclination support member 5 which is rotatably supported by the vertical support member 3 and can be set at a prescribed angle with the vertical support member 3; the operation link 6 rotatably supported by the vertical support member 3; and a connection part 10 including an elastic part 14 for connecting the inclination support member 5 and the operation link 6. |
