发明名称 |
METHOD OF FORMING ANCHORS |
摘要 |
The inventive method of forming anchors comprises following steps. A rod-shaped workpiece is roll-formed by penetrating the rod-shaped workpiece with two wedge-shaped tools at two points. The two points are arranged on opposite sides and axially separated of a plane perpendicular to an axis of the rod-shaped workpiece. The two wedge-shaped tools are axially approaching to the plane while the rod-shaped workpiece is revolved around the axis. The roll-formed workpiece is separated along the plane for forming two bolts. A sleeve is applied around the anchor bolts. |
申请公布号 |
EP2533919(A1) |
申请公布日期 |
2012.12.19 |
申请号 |
EP20100705989 |
申请日期 |
2010.02.12 |
申请人 |
HILTI AKTIENGESELLSCHAFT |
发明人 |
SHIMAHARA, HIDEKI;OPPENEIGER, SIMON;KIND, SIMON |
分类号 |
B21H1/18;B21H3/02;B21H7/18 |
主分类号 |
B21H1/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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