发明名称 LARGE-AREA WASHER
摘要 In a large-area washer (1) there is an aperture for the insertion of a fastener and a bead (16) to stiffen the washer (1). To provide better engagement with a plate and/or web to be fastened there are engagement components (13) on the underside of the washer (1) which are pressed out of the whole material of the washer (1) and project approximately perpendicularly downwards from it. The engagement components (13) are conical or truncated cones.
申请公布号 CA2178653(A1) 申请公布日期 1995.06.15
申请号 CA19942178653 申请日期 1994.12.05
申请人 SFS INDUSTRIE HOLDING AG 发明人 STERLE, HELMUT;STEFEN, MARKUS;BAUMGARTNER, STEFAN
分类号 E04D3/36;E04D5/14;(IPC1-7):E04D5/14 主分类号 E04D3/36
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