US 12,049,913 B2 · System for securing an anchor in a mineral substrate

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, said furrowing tool comprising the following: a main part with a leading end and a trailing end, wherein a force is applied via which a torque can be transmitted to the main part in order to rotate the furrowing tool (10) into the borehole and furrow the thread, and the main part has an outer surface equipped with a furrowing thread which is suitable for furrowing the internal thread into the wall of the borehole. The furrowing tool has a drive element on the leading end of the furrowing tool, said drive element being suitable for interacting with an application of force to the anchor or a part thereof which is to be screwed into the borehole machined by the furrowing tool.

Claims31

Dependent claims

A system for fastening an anchor in a borehole in a mineral substrate, in particular concrete, mortar or masonry, comprising

an anchor having a core section and a thread section, the core section having a core diameter dK and the thread section having an outer diameter dG, and
a grooving tool for grooving an internal thread in the borehole, the grooving tool comprising the following:
a base body having a leading and a trailing end, a force application device being provided, via which a torque for screwing the grooving tool into the borehole and for grooving the thread is transmitted to the base body, the base body having an outer surface on which a grooving thread is formed, which is suitable for grooving the internal thread into the wall of the borehole, wherein the grooving tool has a drive element at its leading end, which is suitable to interact with a force application device of the anchor or a part of the same, which is to be screwed into the borehole treated with the grooving tool.

A method for fastening an anchor having a core section and a thread section in a borehole in a mineral substrate, comprising the following steps:

drilling a borehole,
a grooving step of grooving an internal thread in the borehole by screwing a grooving tool into the borehole, and
inserting the anchor into the borehole,
the grooving tool comprising the following:
a base body having a leading and a trailing end, a force application device being provided via which a torque for screwing the grooving tool into the borehole and for grooving the thread is transferred to the base body, the base body having an outer surface on which a grooving thread is formed, which is used in said grooving step for grooving said inner thread into said wall of said borehole, wherein the grooving tool at its leading end has a drive element suitable for interacting with a force application device of the anchor or of a part of the same, and which is used, in said step of inserting said anchor into the borehole, for screwing said anchor or the part of the same into the borehole treated with the grooving tool.

2 more elements

Dependencies are inferred from the claim text.

System for securing an anchor in a mineral substrate

Life of this patent

System for securing an anchor in a mineral substrate

Life of this patent

Abstract

Claims31