| 摘要 |
The invention relates to a chisel holder system which comprises a base part (10) and a chisel holder (20). The base part (10) comprises a socket (14) wherein the chisel holder (20) comprising a plug-in insert (21) is introduced. Said chisel holder (20) which comprises a bearing surface (27) is supported on a supporting surface (12) of the base part (10), and the base part (10) comprises a shoulder (13) which is connected to the supporting surface (12). A replacement chamber is formed between the shoulder (13) and a facing end surface (28.1) of the chisel holder (20). According to the invention, the supporting surface (12) is placed in the transition region in relation to the shoulder (13) by means of at least one recess (15) of the shoulder (13) such that the flat-shaped connection between the supporting surface and the shoulder (13), in the region of the recess (15), is interrupted in order to optimise the resistance to wear and tear of the base part (10).
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