发明名称 Method for the production of an edge protector for a sheet-metal coil
摘要 A description is given of a method for the production of a sheet-metal edge protector for a sheet-metal coil. The edge protector consists of an inner ring and an outer ring, possibly with a sheet-metal disc between the two rings. The inner ring rests against the inner front edge of the sheet-metal coil and the outer ring rests against the outer front edge of the sheet-metal coil. Both rings have an L-shaped profile. According to the invention, the end flange of the inner ring is cold formed at a multiplicity of mutually spaced points in regions widening radially outwards. The inner ring is thereby provided with its desired shape without the risk of the end flange of the inner ring tearing.
申请公布号 DE3436200(A1) 申请公布日期 1986.04.03
申请号 DE19843436200 申请日期 1984.10.03
申请人 KUNZ,DIETER,DIPL.-ING. 发明人 KUNZ,DIETER,DIPL.-ING.
分类号 B21D11/08;B21D53/16;B65H75/02;(IPC1-7):B21D53/16;B21D11/10 主分类号 B21D11/08
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