| 摘要 |
The invention concerns a lifting device (1) attached to a vehicle (2), and designed to facilitate loading and unloading of the vehicle by raising and lowering a loading ramp (3). The lifting device comprises at least one upper lifting arm (4) and one lower lifiting arm (5), which arms (4, 5) are hingedly connected at one of the ends to a lifting frame (6) by means of one upper pivot point (7) in the frame and one lower pivot point (8) in the frame. At their opposite ends they are hingedly connected to the loading ramp (3) by means of pivot points (9, 10). Either one of said lifting arms (4, 5) are provided adjacent its point (7, 8) of pivotal connection with the frame, with a lifting lug (11), containing a point of pivotal connection (12) for lifting movements, and an actuating means (13) is disposed between the lifting pivot point (12) and a pivotal connection in the lifting frame. |
