Invention Application
- Patent Title: Rock drill
- Patent Title (中): 摇滚钻
-
Application No.: US10275433Application Date: 2002-11-06
-
Publication No.: US20030138304A1Publication Date: 2003-07-24
- Inventor: August Haussmann , Gerhard Schwarz
- Priority: DE10024433.5 20000519
- Main IPC: B23B051/00
- IPC: B23B051/00

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
- US06868924B2 Rock drill Public/Granted day:2005-03-22
Information query