Patent ID: 11920619
Assignee: HILTI AKTIENGESELLSCHAFT
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An expansion anchor comprising:
an anchor bolt; and
at least one expansion shell located at the anchor bolt;
the anchor bolt including:
a wedge zone for expanding the at least one expansion shell;
a neck zone accommodating at least parts of the expansion shell, the neck zone being located rearwardly of the wedge zone;
an abutment zone forming a rearward stop for the expansion shell, the abutment zone being located rearwardly of the neck zone; and
a rear zone for intruding tensile force into the anchor bolt, the rear zone being located rearwardly of the abutment zone;
at least one forwards groove, located in front of the abutment zone; and
at least one aligned rearwards groove aligned with the at least one forwards groove, and located rearwardly of the abutment zone.