发明名称 Machine designed to lift a flexible, flat workpiece off a support surface
摘要 A machine is disclosed for lifting flexible flat workpieces such as fabric from a support surface. The machine includes a needle holder onto which a circular needle is mounted. The leading edge of the needle holder initially extends through a slit in the housing to push down on the workpiece when the machine is first placed thereon to prevent folds from occurring in the slit. Thereafter, the needle holder is rotated so that the circular needle perforates the top workpiece whereby the machine can be raised to lift the workpiece and move it to a desired location. When the needle holder returns to its rest position the needle is pulled out of the workpiece allowing it to fall from the grasp of the machine.
申请公布号 US4641826(A) 申请公布日期 1987.02.10
申请号 US19850745296 申请日期 1985.06.14
申请人 BEISLER GMBH 发明人 VAN DER WEIDE, EGBERT J.
分类号 B65H3/22;(IPC1-7):B65H3/22 主分类号 B65H3/22
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