| 摘要 |
<p>The present invention concerns an assembly (1) of control and manoeuvre for moving and controlling the blades of a switch point. It comprises a group of manoeuvre (3) coupled with a group of control. The group of manoeuvre (3) comprises a coupling element (11) connected to a manoeuvre hook (10) through a seat (15) obtained at an end (14) of the coupling element (11) and into which an end (13) of the manoeuvre hook (10) engages slidingly and rotatably, the end (15) being open on one side in such a way as to allow the fall outside of eventual external residues and/or residues of fretting interposed in the connection and wherein the end (13) further presents, a surface (17) of contact with the sliding seat (15) which is substantially spherical.</p> |
