| 摘要 |
The invention according to patent ... (Patent Application P 3329548) is further developed in that two piston cylinder devices which are arranged so as to counteract one another are provided, the movable elements of which devices are permanently connected to one another and bear two deflection rollers, and in that the two traction elements are guided originating from an attachment point associated with one vehicle part via a deflection roller mounted permanently on the other vehicle part and then in a deflection of approximately 180 DEG via one of the two deflection rollers borne by the piston cylinder devices to the attachment point permanently arranged on the other vehicle part.
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