| 摘要 |
A tow hitch for trailer vehicles, comprising a support structure (2) having a central body (2a) that is engageable to a tractor, a first portion (2b) and a second portion (2c) extending from the central body (2a), and spaced away from each other so as to define a cavity (3) suitable for receiving a tow bar (4). A coupling pin (5) slidingly guided through the first portion (2b) and longitudinally movable along a work axis (X-X) between a closed position wherein it engages said cavity (3) and an open position wherein it frees access to said cavity (3); A locking device (23) that retains the pin in the open position, and releases the pin from the open position following movement of the pin along said work axis (X-X) away from the second portion (2c) of the support structure (2). The coupling pin (5) comprises a control head (8) and a holding portion (7) mutually movable transversely with respect to said work axis, so as to allow the extraction of the tow bar retaining the coupling pin (5) in the open position. |
