发明名称 Wind-off device
摘要 A wind-off assistance device for coreless film rolls comprises two receiving element being insertable into a coreless film roll. The receiving element are connected to each other via a cylindrical connection element. The two receiving element are surrounded by a ring-shaped bearing so that the film roll is rotatably connected to the receiving element. A second bearing ring is located between the cylindrical connection element and the receiving element so that the connection element can be rotated on the receiving element.
申请公布号 US7438254(B2) 申请公布日期 2008.10.21
申请号 US20060351256 申请日期 2006.02.10
申请人 ILLINOIS TOOL WORKS INC. 发明人 OETTERSHAGEN BODO
分类号 B65H75/18;B65H75/10 主分类号 B65H75/18
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