| 摘要 |
The invention relates to a retainer for a winning tool, in particular a chisel bit jumper used to extract raw material by shearing or ploughing off or to cut rock, with a retainer body (1) that has a pocket to hold the winning tool and is connected to an appropriate winning or heading machine, the wear on the retainer body (1) being minimized to extend its service life in that the holder body (1) has, in the region of its principal wear tracks, a number of wear-protection elements (4) that project out from the retainer body (1) and that are fixed in recesses (5) provided in the retainer body (1). |
