| 摘要 |
The device has a return spring subjugated to a pivot (2) mounted on a supporting part (3). The pivot (2) is auto-aligned with fixed and moving points corresponding to shifting of a lever. The spring is not pre-constrained to obtain synchronization between tools. The pivot (2) and the part (3) make a complementary arrangement to assure a locking in translation of the pivot after its auto-alignment. |
