公开(公告)号：US20060204345A1

公开(公告)日：2006-09-14

申请号：US11337099

申请日：2006-01-20

申请人： Bernhard Borschert ,  Ulrich Krenzer ,  Rainer Buttner

发明人： Bernhard Borschert ,  Ulrich Krenzer ,  Rainer Buttner

IPC分类号： B23B51/06

CPC分类号： B23B51/06 ,  B23B2251/046 ,  B23B2251/50 ,  Y10T408/455 ,  Y10T408/9097

摘要： A drill bit having a shank portion and a cutting portion, which cutting portion generally has at least two cutting edges, each with an at least partially spiraled or helical flute extending therefrom to the shaft portion. The drill bit has coolant channels that extend from the shaft portion and run substantially straight. The coolant channels have outlet openings that are arranged in the flutes and oriented toward the cutting edges. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

摘要翻译： 一种具有柄部分和切割部分的钻头，该切割部分通常具有至少两个切割边缘，每个切割边缘具有从其延伸到轴部分的至少部分螺旋形或螺旋形凹槽。 钻头具有从轴部分延伸并基本上直线运行的冷却剂通道。 冷却剂通道具有布置在凹槽中并且朝向切削刃定向的出口。 披露摘要根据37 C.F.R.的要求提交。 §1.72（b）。 如37 C.F.R. §1.72（b）：说明书中技术性披露的简要摘要必须在单独的表格上开始，优选按照权利要求，在“披露摘要”标题下。 摘要的目的是使专利商标局和公众一般能够从粗略检查中快速确定技术披露的性质和要点。 摘要不得用于解释权利要求的范围。 因此，与摘要有关的任何陈述不旨在以任何方式限制权利要求，也不应被解释为以任何方式限制权利要求。