| 摘要 |
The invention relates to an apparatus for maintaining a constant tension on a web of material, in particular on a label web used in a labeling machine (E), said apparatus comprising: a stationary rotary axle device ( 30 ) with a geometric rotational axis (M) and a tension compensation device ( 40 ) rotatable from a starting position about said rotational axis (M) of said rotary axle device ( 30 ), said tension compensation device ( 40 ) comprising a force unit ( 60 ) which exerts a force on the tension compensation device ( 40 ) that counteracts the rotational movement of the tension compensation device ( 40 ) from the starting position. It is further provided that the force applied by the force unit ( 60 ) is a linear force acting on the tension compensation device ( 40 ) at a force application point ( 65 ) with a radial spacing to the rotational axis (M) of the rotary axle device ( 30 ).
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