Patent · US Active

Drilling tool with a cutting element that is configured as a plate or head

US7740089B2 · kind B2 · utility

0Cited by

1References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Bernhard Moser · Altshausen, DE
Rainer Widmann · Trochtelfingen, DE

Key dates

Filing date	Aug 4, 2005
Grant date	Jun 22, 2010
Priority date	—
Expiry date	Feb 7, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/909
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a drilling tool, especially for percussion drilling, which comprises a cutting element (3) that is configured as a plate (3) or head and that has at least one cutting edge (11) defined by a cutting face (6) and a free face (10). The cutting edge (11) is associated with a first free face section (10a) which is limited in a cutting plane at a right angle to the cutting edge (11) and parallel to the longitudinal axis (L) of the drilling tool (1) by a convex bulge (13) or a convex polygon outline. The vertical height of a rib (14) defined by the first free face section (10a) and an associated first cutting face section (6a) ranges from 0.1 mm to 1.0 mm.

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