Chisel holder, and chisel holder system comprising a chisel holder and a base part

US9376911B2 · kind B2 · utility

Assignee

• Wirtgen GmbH

Inventors

• Thomas Lehnert · Oberraden, DE
• Karsten Buhr · Willroth, DE
• Cyrus Barimani · Rübhausen, DE
• Günter Hähn · Rübhausen, DE
• Karl Kammerer · Fluorn-Winzeln, DE
• Bernhard Diesner · Telfes im Stubai, AT
• Markus Roth · Schenkenzell, DE

Key dates

• Filing date: Dec 2, 2011
• Grant date: Jun 28, 2016
• Expiry date: Dec 2, 2031

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21C35/191
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A chisel holder comprises a body zone (12) having a chisel receiving opening (18) that is open at least in the direction of a chisel insertion end (14) of the body zone (12), and also comprises a fastening shaft (26) which extends from a supporting end (20) of the body zone (12) and has a longitudinal shaft axis (LB), the body zone (12) having a first supporting surface region (22) at its supporting end (20). Said chisel holder is characterized in that the body zone (12) has a second supporting surface region (24) at its supporting end (20), said second surface region (24) extending at an angle from the first supporting surface region (22), or/and the first supporting surface region (22) comprises a first supporting surface (28) and a second supporting surface (30) extending at an angle from the first supporting surface (28).