| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved drilling machine tooth fixture.SOLUTION: A fastening member 26 has a spiral screw part formed on the fastening member 26. The screw part is eccentric to a body of the fastening member 26. A tooth 18 includes a pocket 24. The pocket 24 has at least one side wall and multiple insertion body engaging interface surfaces that are formed in the pocket 24 and entirely flat. One of the interface surfaces prevents the tooth 18 from rotating in one direction around an axis in a longer direction. The other interface surface prevents the tooth 18 from rotating in the opposite direction around the axis in the longer direction. The tooth 18 includes the pocket 24 formed by facing side walls. At least one of the side walls has an insertion body receiving concavity formed inside the side wall. The concavity receives the insertion body fitted to an adaptor nose 22.SELECTED DRAWING: Figure 13 |
