发明名称 Method for fixing the position of a tab having an anti-rotation bead formed from the panel of a sheet metal lid (steep anti rotation device).
摘要 Method for shaping a sheet metal lid, preferably for a beverage can, which includes a panel, an openable area defined in the panel by a score line, and a mounting place for a tab for breaking into the openable area. At least one projection in the panel is shaped twice, such that a pre-form of the projection is shaped out of the panel of the sheet metal lid, in which the pre-form is located near an attaching portion of the tab, but at a distance from a the mounting place, and at least a front edge of the pre-form of at least one projection is re-formed, so that no score line is provided in the panel during shaping or re-forming. Further, to obtain better blocking of an outer edge portion of the attaching portion, an outer edge portion is associated with the re-formed front edge. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
申请公布号 US7165926(B2) 申请公布日期 2007.01.23
申请号 US20030184007 申请日期 2003.11.03
申请人 RIECK HAJO;GRAY MARTIN;CHALK RICHARD 发明人 RIECK HAJO;GRAY MARTIN;CHALK RICHARD
分类号 B21D51/44;B65D17/34 主分类号 B21D51/44
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