| 摘要 |
The invention relates to a system for treating objects, wherein said objects are transported by means of at least one transport carriage (5) and immersed into at least one treatment container, in which a treatment medium can be applied to the objects. The transport carriage (5) comprises at least one swivel arm (50, 51) connected to the chassis in an articulated manner, on which swivel arm the object can be fastened. A hydraulically operating piston-cylinder unit (80) having a first working chamber (80a) is provided to drive the swivel arm (50, 51) and at the same time to provide weight balancing. The first working chamber is made smaller during the downward motion of the swivel arm (50, 51) and is connected in a closed system to a first pressure accumulator (84). The second working chamber (80b) of the piston-cylinder unit (80), which is made larger during the downward motion of the swivel arm (50, 51), is connected to a source (83, 85) for pressurized hydraulic fluid and can be drained during the downward motion of the swivel arm (50, 51). The pressure of the hydraulic fluid in the first pressure accumulator (84) is sufficient to swivel the swivel arm (50, 51) together with the object upward if the pressure in the second working chamber (80b) of the piston-cylinder unit (80) is sufficiently low. |
