Invention Grant
- Patent Title: Drilling tool with a cutting element that is configured as a plate or head
- Patent Title (中): 钻具具有配置为板或头的切割元件
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Application No.: US10589317Application Date: 2005-08-04
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Publication No.: US07740089B2Publication Date: 2010-06-22
- Inventor: Bernhard Moser , Rainer Widmann
- Applicant: Bernhard Moser , Rainer Widmann
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agent Michael J. Striker
- Priority: DE102004047469 20040930
- International Application: PCT/EP2005/053851 WO 20050804
- International Announcement: WO2006/034912 WO 20060406
- Main IPC: E21B10/58
- IPC: E21B10/58

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.
Public/Granted literature
- US20070169965A1 Drilling tool with a cutting element that is configured as a plate or head Public/Granted day:2007-07-26
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