| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a balancer mechanism.SOLUTION: A balancer mechanism which cancels a rotation moment acting on a rotary shaft which has a shaft center extending in a first direction comprises: an eccentric member which is so located as to be eccentric for the rotary shaft and is fixed to the rotary shaft; an energization member which energizes the eccentric member in a second direction orthogonal to the first direction; and a support member which so supports the energization member as to be movable along a third direction orthogonal to the first direction and the second direction.SELECTED DRAWING: Figure 2 |
