| 摘要 |
The system has a plate (41), a cylindrical rod (42) and a securing unit (43) for securing an end (44) of the rod to the plate. The plate has a width that is less than a width of a longitudinal opening (24), a length higher than the width and lower than a distance internally separating two U-shaped branches. The plate has a thickness that is lower than a minimal distance. The securing unit fixes the end of the rod to the plate such that the rod is approximately perpendicular to a plane of the plate constituted by a conical socket (50). The plate has an approximately parallelepipedic form. |
