| 摘要 |
The invention relates to a rock drilling tool (1) for the rotational percussive machining of concrete, rock, masonry and such materials, said tool comprising a drilling head (2) provided with a cutting body (3), and a helix arranged between the drilling head (2) and a shaft (5), the cutting body (3) extending continuously over a nominal diameter (N) of the rock drilling tool (1) and having, in the active direction of the stone drilling tool (1), a lower base region (8) and an upper head region (9). The head region (9) of the cutting body (3) is formed as a pyramid or as a truncated pyramid, at least one basic surface thereof extending over the nominal diameter (N) of the rock drilling tool (1), and comprises pyramidal edges extending from the basic surface to the top (10) of the pyramid (11) or the truncated pyramid. Lateral surfaces are located between the pyramid edges, and at least one lateral surface is curved. |
