Method of Forming Anchors
AssigneeHilti Aktiengesellschaft
InventorsSimon Kind, Simon Oppeneiger, Hideki Shimahara
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Abstract
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.
Claims20
A method of forming anchors, comprising:
- roll forming a rod-shaped workpiece by penetrating the rod-shaped workpiece with two wedge-shaped tools at two points, wherein the two points are arranged on opposite sides of and axially separated by a plane perpendicular to an axis of the rod-shaped workpiece, and wherein the two wedge-shaped tools are configured to axially approach the plane as the rod-shaped workpiece is revolved around the axis;
- dividing the roll-formed workpiece along the plane for forming two anchor bolts;
- and
- applying a sleeve around the anchor bolts.
Dependencies are inferred from the claim text.