Anchor rod for composite anchors
AssigneeHilti Aktiengesellschaft
InventorsErwin Schiefer, Franz Popp
Life of this patent
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Abstract
An anchor rod for use as a composite anchor is secured in a receiving borehole by one of a hardenable or curable organic and inorganic mortar mass. The anchor rod has a means (3) at a trailing end region (2) for engaging a load. The anchor rod has an anchoring region (4) insertable into the receiving borehole and has a thread-like profiling (5) for interaction with the mortar mass injected into the receiving borehole. The thread-like profiling is a coarse screw thread (5) and has a thread pitch (s) which reduces in the axial direction from the leading end toward the trailing end of the anchor rod (1).
Claims8
An anchor rod for use in a composite anchor where the anchor rod is inserted into a borehole in an anchorage base material containing at least one of an organic and inorganic mortar mass in the borehole, wherein the anchor rod comprises an axially extending rod having a leading end inserted first into the borehole and a trailing end, said rod has an axially extending anchoring region (4) with a thread-like profiling (5) extending axially from the leading end towards the trailing end on an outer surface thereof arranged to interact with the mortar mass in the borehole, means for engaging a load on a trailing end region (2) extending axially from the trailing end towards said anchoring region (4), said thread-like profiling (5) comprises a coarse screw thread having thread pitches (s) diminishing in the axial direction from said leading end to said trailing end region (2).
Dependencies are inferred from the claim text.