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1. 发明公开

EP0255563A1 Fletching for stabilizing arrow flight 失效
标题翻译： Befiederung eines Pfeiles zur Flugstabilisierung。
公开(公告)号：EP0255563A1
公开(公告)日：1988-02-10
申请号：EP86850274.1
申请日：1986-08-08
申请人： Bengtson, Björn
发明人： Bengtson, Björn
IPC分类号： F42B6/02
CPC分类号： F42B6/06
摘要： A fletching for guiding and stabilizing the flight of an arrow projected through the air by a bow. The fletching has an elongated, relatively thin and substantially planar body (10). An inner edge portion provides a base (24) of sufficient transverse width for mounting the fletching on the shaft (12) of an arrow. An outer vane portion 20 includes means for providing a turbulent flow of air over this outer portion of the fletching at flight velocity. An inner vane portion (22) connects the outer vane portion to the base (24) and has continuous and substantially smooth side surfaces for providing a laminar flow of air over this inner portion of the fletching. The height of the smooth inner vane portion provides a moment arm for transmitting the effects of outer portion turbulence to the arrow shaft. The amount of turbulence and the length of the moment arm are sufficient to quickly stabilize the flight of the arrow after it leaves the bow when at least three of the fletchings are mounted on the arrow shaft adjacent its nock end.
摘要翻译：引导和稳定箭头投射在空中的箭头的飞行物。起绒具有细长的，相对薄且基本上平坦的主体（10）。内边缘部分提供足够横向宽度的基部（24），用于将定影件安装在箭头的轴（12）上。外部叶片部分20包括用于以飞行速度在该起酥油的该外部部分上提供湍流空气的装置。内叶片部分（22）将外叶片部分连接到基部（24）并且具有连续且基本平滑的侧表面，用于在该切片的该内部部分上提供层流的空气流。平滑的内叶片部分的高度提供了一个力矩臂，用于将外部湍流的作用传递到箭头轴。湍流量和时间臂的长度足以在箭头离开弓之后迅速稳定箭头的飞行，当至少三个起丝器安装在邻近其末端的箭头轴上时。

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