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    • 3. 发明公开
    • WICKELWELLE
    • EP3057897A1
    • 2016-08-24
    • EP14786166.0
    • 2014-10-15
    • Windmöller & Hölscher KG
    • HOFFMANN, Frank
    • B65H75/24
    • B65H75/243B65H2401/112B65H2401/231B65H2404/41B65H2515/81
    • The invention relates to a tensioning shaft for winding a material web, in particular of plastic films, namely in particular of stretch films. In order to provide a tensioning shaft having the highest possible strength and rigidity, a tensioning shaft is provided which has a shaft body which in order to achieve the highest possible bending stiffness consists predominantly of fibre-reinforced plastic, and having cavities which are provided along the external circumference of the shaft body, wherein the cavities are delimited in the radial internal direction by a layer of the fibre-reinforced plastic are and wherein tensioning strips are expandable out of the cavities in the radial external direction.
    • 本发明涉及一种用于缠绕材料幅面,特别是塑料薄膜,特别是拉伸薄膜的张紧轴。 为了提供具有尽可能高的强度和刚度的张紧轴,提供了张紧轴,该张紧轴具有轴体,该轴体为了实现尽可能高的弯曲刚度而主要由纤维增强塑料构成,并且具有空腔 轴体的外圆周,其中腔体在径向内部方向上由纤维增强塑料层界定,并且其中张紧条在径向外部方向上可膨胀出腔体。