| 摘要 |
<p>The element e.g. coupling (10) has axially opposite cavities receiving proximal ends (8.1.2, 8.2.2) of semi side rails (8.1, 8.2), where the element is formed as a single part. The cavities have an inner shape corresponding to that of the ends and a shape adapted to that of the semi side rails. The cavities are axially delimited by edges that are arranged in planes which are axially shifted. The cavities communicate through their bottom such that a communication passage is formed between the cavities. An annular surface edges the passage for forming an axial stop surface for the proximal ends. Independent claims are also included for the following: (1) a method for manufacturing a side rail (2) a method for repairing a side rail.</p> |
