| 摘要 |
The invention relates to a sub-assembly (2) that comprises a device (8) for attaching a first component (6) on a second component (4), including first, second and third threaded members (20, 21, 22). The first and second threaded members have complementary threads (52, 64) including an axis and a first pitch. The second and third members have complementary threads (74, 88) including said axis and a second pitch opposed to the first one, and having chamfer (90) adapted so as to break beyond a predetermined torque. The rotation of the third member in the second screwing direction results in the unscrewing of the second member until the predetermined torque is reached, an additional rotation resulting in the screwing of the third member onto the second member. The first component and the first member have complementary features for blocking the rotation of the first member relative to the first component about the axis of the threads. |
