公开(公告)号：US3881729A

公开(公告)日：1975-05-06

申请号：US43168174

申请日：1974-01-09

申请人： BLOCK MILTON L ,  GOLDBERG DAVID D ,  DOUTHIT KENNETH S

发明人： BLOCK MILTON L ,  GOLDBERG DAVID D ,  DOUTHIT KENNETH S

IPC分类号： A63B65/08 ,  A63H27/00

CPC分类号： A63B65/08 ,  A63B2208/12

摘要： A flying toy of the boomerang type having either three or four equiangularly spaced arms extending radially from a central junction and disposed substantially in a common plane, the arms having alternate or consecutive tips turned upward and downward. The arms may be either planar or cambered and are preferably tapered from wider to narrower in the direction from the central junction toward the arm tips with the edges of the arms being beveled to a relatively thin leading edge. the central junction or hub is provided with an air permeable aerodynamic resistance element in the form of a cylindrical tube to which a stabilizing disc or cap may also be attached.

摘要翻译： 飞镖型的飞行玩具具有三个或四个等角度间隔开的臂，其中心臂从中心连接处径向延伸并且基本上设置在公共平面中，所述臂具有交替的或连续的尖端向上和向下转动。 臂可以是平面的或弧形的，并且优选地在从中心连接朝向臂顶端的方向上从较宽到较窄地逐渐变细，其中臂的边缘被倒角到相对薄的前缘。 中心连接点或轮毂设置有圆柱形管形式的透气性空气动力阻力元件，稳定盘或盖也可以连接到该空气阻力元件。