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1. 发明授权

US06623385B1 Arrowhead bushing 失效
标题翻译：箭头套管
公开(公告)号：US06623385B1
公开(公告)日：2003-09-23
申请号：US10139884
申请日：2002-05-06
申请人： Brian J. Cole , Ronald W. Bryie
发明人： Brian J. Cole , Ronald W. Bryie
IPC分类号： F42B604
CPC分类号： F42B6/04
摘要： An arrow that is easily assembled and exhibits improved concentricity between the arrowhead and the arrow shaft includes a hollow arrow shaft, an arrowhead having a tip and a cylindrical shank, and a bushing having a cylindrical section and a tapered section, wherein the cylindrical section of the bushing is received in an end of the hollow arrow shaft and secured to the hollow arrow shaft with an adhesive. The tapered section has a bore in which the shank portion of the arrowhead is received, and the shank portion of the arrowhead is secured within the bore using an adhesive. In accordance with an aspect of the invention, the cylindrical shank portion of the arrowhead has smooth surfaces that engage smooth surfaces of the bore extending through the tapered section of the bushing, whereby the absence of threads and other irregularities on the engaging surfaces between the arrowhead and the bushing improve concentricity among the arrowhead, bushing and arrow shaft.
摘要翻译：容易组装并且在箭头和箭头轴之间呈现改善的同心度的箭头包括中空箭头轴，具有尖端和圆柱形柄部的箭头以及具有圆柱形部分和锥形部分的套管，其中圆柱形部分衬套被容纳在中空箭头轴的端部中并用粘合剂固定到空心箭头轴上。锥形部分具有其中容纳箭头的柄部分的孔，并且使用粘合剂将箭头的柄部分固定在孔内。根据本发明的一个方面，箭头的圆柱形柄部分具有光滑的表面，其接合延伸穿过衬套的锥形部分的孔的平滑表面，由此在箭头之间的接合表面上不存在螺纹和其它不规则并且套筒提高了箭头，衬套和箭头轴之间的同心度。

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