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摘要

A door system comprises a door leaf (4) which is movably mounted in guide sections (5) on both long sides, as well as a counterweight device (11) provided with a cable unit (12) comprising at least two cable parts (13) extending substantially parallel to each other. The cable unit is connected to the movable door leaf with a first end (16), whilst a second end (22) takes up a stationary position, said cable unit at least extending over a movable pulley (20)between said first and said second end, which counterweight device further comprises a spring unit (14) which engages the movable pulley, as well as a cable tension compensation device (41) working in concert with the cable unit for loading the cable parts substantially equally. The cable tension compensation device is provided with a compensation element (42) disposed between two cable parts, which is provided with a cable guide on either side thereof, against each of which cable guides a cable part abuts. The compensation element (42) is movable at least in a direction substantially transversely to the longitudinal direction of the cable parts under the influence of cable forces exerted on the compensation element by the cable parts.