| 摘要 |
A side curtain tensioning hook device for semi trailers and trailers is provided with a base plate (6) having two sidewalls (5) that define a substantially U-shaped configuration, with a lever (17) having two side wings (117) that define a substantially U-shaped profile hinged to the side walls (5) of the base plate (6), and with a hook (101) associated to operate with the lever (17); the side walls (5) each have a respective elongated slot (105); two links (20) are hinged at an end to the side wings (117) and, at the opposite end, 'to a pin (21), whose ends slide in the slots (105), while a shank portion (1) of the hook (101) is suspended from a central portion of the pin (21); when the lever (17) is operated, the hook (101) is raised to a hook-up position on a sideboard (S) or lowered to an unhooked position. |
