发明名称 Drive unit for a drilling or construction device
摘要 <p>The unit (10) has a carriage that is movable along a mast, and a drilling drive (40) arranged at the carriage, where the drilling drive drives drill rods. The carriage includes a carriage lower part (20) and a carriage upper part (30), where the carriage lower part is movable along the mast. The drilling drive is arranged at the carriage upper part that is pivotable around rotation axes with respect to the carriage lower part.</p>
申请公布号 EP2236733(A1) 申请公布日期 2010.10.06
申请号 EP20090004987 申请日期 2009.04.03
申请人 BAUER MASCHINEN GMBH 发明人 POECKL, RUDOLF, DIPL.-ING.
分类号 E21B3/02;E21B7/02;E21B19/08 主分类号 E21B3/02
代理机构 代理人
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