| 摘要 |
The invention relates to an assembly set for a loading platform of a commercial vehicle. Said assembly set comprises an assembly console (1) that is to be fastened to the commercial vehicle, a carriage (16) that can be moved via a deploying and retracting cylinder mechanism (18, 19) to be longitudinally displaced on the assembly console (1), a lifting arm (20) which is pivotable via at least one lifting cylinder (50) and on which an adjustable loading platform is mounted, and a hydraulic unit (30) located on the carriage (16). The deploying and retracting cylinder mechanism is provided with at least one bi-medium cylinder (18, 19) encompassing a gas chamber and a hydraulic chamber (68) which is connected to the hydraulic unit via a hydraulic conduit (67), can be impinged upon by hydraulic fluid for deploying the carriage (16), and can be opened for retracting the carriage. The gas chamber is compressed for the deploying action so as to increase the internal pressure thereof while being expanded for the retracting action when the hydraulic conduit is open. According to the invention, only one hydraulic conduit is required from the hydraulic unit to the deploying and retracting cylinder mechanism, manually returning into a driving position being possible. |
