Patent · US Active

Tool system

US9222354B2 · kind B2 · utility

3Cited by

11References

18Claims

0Family size

Assignee

Wirtgen GmbH

Inventors

Thomas Allgaier · Schramberg, DE
Thomas Lehnert · Oberraden, DE
Markus Roth · Schenkenzell, DE

Key dates

Filing date	Oct 11, 2012
Grant date	Dec 29, 2015
Priority date	—
Expiry date	Oct 11, 2032

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/19
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

The invention relates to a tool system having a bit holder and a shank bit, the bit holder comprising a bit receptacle that comprises a first and a second diameter region that lead into one another via a transitional segment (taper), a bit shank of the shank bit comprising a first and a second cross-sectional region that lead into one another via a transitional segment. With a tool system of this kind, a wear-optimized design results from the fact that the transitional segments of the shank bit and of the bit holder are arranged spaced away from one another in the direction of the longitudinal center axis of the shank bit, in order to form a resetting space.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.