Invention Application
US20030138304A1 Rock drill 有权
摇滚钻

  • Patent Title: Rock drill
  • Patent Title (中): 摇滚钻
  • Application No.: US10275433
    Application Date: 2002-11-06
  • Publication No.: US20030138304A1
    Publication Date: 2003-07-24
  • Inventor: August HaussmannGerhard Schwarz
  • Priority: DE10024433.5 20000519
  • Main IPC: B23B051/00
  • IPC: B23B051/00
Rock drill
Abstract:
A rock drill having a helical shank (3) and a drill head (2) is proposed, this rock drill having a main cutting tip (6), inclined in a roof shape, and secondary cutting tips (14, 15) arranged in a cross shape thereto. In order to produce an enlarged chip space for the secondary cutting tips (14, 15), the end face (20) of the drill head (2) is designed in a step shape, so that a shoulder (25) is obtained for forming an additional chip volume (27).
Public/Granted literature
Information query
Patent Agency Ranking
0/0