Aufpralldämpfer für Gebirgsanker

Details

Veröffentlichungs-Nr.

EP3530878

Aktenzeichen

EP18158247

Anmeldetag

22. Februar 2018

Veröffentlichung

7. Juni 2023

Erteilung

7. Juni 2023

Rechtsraum

EP

IPC

E21D21/00

Abstract

A self-drilling rock bolt (1) for drilling a drill hole (2) in a material to be drilled (3) using a percussive rock drill and reinforcing the material surrounding the drill hole is provided. The rock bolt (1) comprises drilling means (4), a rock bolt body (5) for bolting the drill hole, an end anchor element (9) provided at the drilling end (7) of the rock bolt provided with anchor means for engaging with the material of the drill hole walls, and an impact absorber (26) arranged between the rock bolt body and the end anchor element to dampen the impact from percussive drilling.

Anmelder

Firma

Sandvik Mining and Construction Oy

Land

🇫🇮 Finnland

Fachgebiete