发明名称 Tool system
摘要 The invention relates to a tool system having a bit holder and a shank bit, the bit holder comprising a bit receptacle that comprises a first and a second diameter region that lead into one another via a transitional segment (taper), a bit shank of the shank bit comprising a first and a second cross-sectional region that lead into one another via a transitional segment. With a tool system of this kind, a wear-optimized design results from the fact that the transitional segments of the shank bit and of the bit holder are arranged spaced away from one another in the direction of the longitudinal center axis of the shank bit, in order to form a resetting space.
申请公布号 US9222354(B2) 申请公布日期 2015.12.29
申请号 US201214347405 申请日期 2012.10.11
申请人 Wirtgen GmbH 发明人 Allgaier Thomas;Lehnert Thomas;Roth Markus
分类号 E21C35/19;E21C35/197;E21C35/18 主分类号 E21C35/19
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 system, comprising: a bit holder including a bit receptacle, the bit receptacle including a first diameter region, a second diameter region, and a receptacle transitional segment between the first diameter region and the second diameter region; and a bit including a bit shank having a longitudinal center axis, the bit including a first cylindrical segment, a second cylindrical segment, and a shank transitional segment between the first cylindrical segment and the second cylindrical segment; wherein the receptacle transitional segment and the shank transitional segment are spaced from one another in the direction of the longitudinal center axis to form a resetting space having a length in a range of from 4 mm to 20 mm; wherein the first cylindrical segment of the bit shank has a diameter in a range of from 18 mm to 30 mm, and a length in the direction of the longitudinal center axis less than or equal to 30 mm; and a securing element disposed about the bit shank and slidable for the entire length of the resetting space in the direction of the longitudinal center axis along a slide guide of the bit receptacle.
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