| 摘要 |
<p>The line has a connection element (10) with a body (16) fixed at a front end of an outer cylindrical envelope (32), and a guiding arm (18) to guide a front end (12) of a cylindrical conductor (14) that extends longitudinally backwards from the body. A free rear end (20) of the arm is received inside the conductor end to cooperate with an inner cylindrical surface (12i) of the conductor end. The rear end carries a wheel (22) that rotates freely relative to the rear end around a transverse axis (B). The conductor end rests vertically downward on the wheel at the level of the cylindrical surface.</p> |
