发明名称 Process of manufacturing a sleeve and wedge for an anchor bolt
摘要 A structure and method of manufacture of a sleeve for an anchor bolt which has a wedge held in its bolt hole, not separate from the sleeve body. The wedge is formed by striking the sleeve from the side opposite to the bolt hole on an area smaller than the cross-sectional area of the bolt hole.
申请公布号 US4520521(A) 申请公布日期 1985.06.04
申请号 US19830473341 申请日期 1983.03.08
申请人 MIYAKE, AKIRA 发明人 MIYAKE, AKIRA
分类号 E04B1/41;B21K1/76;B23P15/00;E04C5/12;F16B13/10;F16B13/12;(IPC1-7):B21K1/44;B21D31/00 主分类号 E04B1/41
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