发明名称 SHANK-TYPE PICK
摘要 <p>The invention relates to a shank bit for a road milling machine or the like, having a bit head and a bit shank, the bit shank comprising a first cylindrical segment that is indirectly or directly adjacent to the bit head, and the bit shank comprising a second cylindrical segment that, facing away from the bit head, is indirectly or directly adjacent to the first cylindrical segment, and the diameter of the second cylindrical segment differing from the diameter of the first cylindrical segment. In a shank bit of this kind, improved utilization properties result from the fact that the first cylindrical segment has a diameter in the range between 18 mm and 30 mm, and an extent in the direction of the longitudinal center axis of the bit shank less than 30 mm.</p>
申请公布号 EP2766570(A2) 申请公布日期 2014.08.20
申请号 EP20120778275 申请日期 2012.10.11
申请人 BETEK GMBH & CO. KG;WIRTGEN GMBH 发明人 ROTH, MARKUS;ALLGAIER, THOMAS;LEHNERT, THOMAS
分类号 E21C35/18;E01C23/088;E21C35/197 主分类号 E21C35/18
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