| 摘要 |
The device brakes a first rotary shaft (3) and has a braking element (6) fixed in rotation to the shaft and movable along the axis (9) between a first position (13) and a second position (14). The device has parts for displacing the element between the second (14) and first (13) positions. The device also has a second shaft (5) co-axial to the first (3), the braking element (6) being fixed to the second shaft (5). The parts for displacing the element (6) comprises a part (20a, 20b) and surface (22a, 23a) forming a ramp for the part (20a, 20b). |
