System for securing an anchor in a mineral substrate

US12025167B2 · kind B2 · utility

Assignee

• Ludwig Hettich Holding GmbH & Co. KG · DE

Inventors

• Andreas Heck · Hamberg, DE
• Ulrich Hettich · Schramberg, DE

Key dates

• Filing date: Jul 31, 2020
• Grant date: Jul 2, 2024
• Expiry date: May 29, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B25/00
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a system for securing an anchor in a borehole in a mineral substrate, in particular concrete, mortar, or brickwork, comprising an anchor with a core section and a threaded section and comprising a furrowing tool for furrowing an internal thread in the borehole, wherein the furrowing tool comprises the following: a main part with a leading end and a trailing end, said main part having an outer surface on which a furrowing thread is formed that is suitable for furrowing the internal thread into the wall of the borehole. The outer surface of the main part is equipped with a plurality of elevations, each of which has a cutting edge, and all of the cutting edges lie at least partly on an imaginary cylinder with a diameter (do). The cutting edges are suitable for at least partially removing the inner wall of the borehole when the furrowing tool is rotated into the borehole in order to adapt the internal wall of the borehole to the imaginary cylinder.