Invention Grant
US07740089B2 Drilling tool with a cutting element that is configured as a plate or head 有权
钻具具有配置为板或头的切割元件

  • 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
  • Application No.: US10589317
    Application Date: 2005-08-04
  • Publication No.: US07740089B2
    Publication Date: 2010-06-22
  • Inventor: Bernhard MoserRainer Widmann
  • Applicant: Bernhard MoserRainer 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
Drilling tool with a cutting element that is configured as a plate or head
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.
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