| 发明名称 | Chisel holder and lower tool part for a chisel holder | ||
| 摘要 | The invention relates to a bit holder having an insertion projection and having a bore-shaped bit receptacle that has a longitudinal center axis, a convexly curved support surface being provided on a base part. A bit holder of this kind can be implemented in compact and stable fashion in particular by the fact that the longitudinal center axis of the bit receptacle intersects the support surface. | ||
| 申请公布号 | US9267373(B2) | 申请公布日期 | 2016.02.23 |
| 申请号 | US201113989837 | 申请日期 | 2011.12.02 |
| 申请人 | Wirtgen GmbH | 发明人 | Kammerer Karl;Roth Markus;Diessner Bernhard;Lehnert Thomas;Buhr Karsten;Lenz Martin;Barimani Cyrus;Hähn Günter |
| 分类号 | E21C35/18;E21C35/19;E21C35/193 | 主分类号 | E21C35/18 |
| 代理机构 | Patterson Intellectual Property Law, PC | 代理人 | Beavers Lucian Wayne;Patterson Intellectual Property Law, PC |
| 主权项 | 1. A tool apparatus, comprising: a base part having a convexly curved support surface having a spherical surface contour; an insertion projection extending from the base part; and a bit longitudinal center axis defined in the base part, the bit longitudinal center axis intersecting the support surface. | ||
| 地址 | DE | ||