| 摘要 |
PROBLEM TO BE SOLVED: To obtain a highly reliable switch opening/closing mechanism in which movement of the lock pin end in the reverse direction can be prevented, even when the stepped portion in the cam groove bottom face is worn.SOLUTION: At each position of a movement position 1A, a movement position 1B, a lock position L, and a movement position 1C, the center of the upper end 40a is shifted from each position of a heart-shaped trajectory 6 corresponding to each point to the path side where the upper end 40a moves to the next position, for each point of a vertex 1a, a vertex 1b, a protrusion 3a, and a vertex 1c. |
