公开(公告)号：US4153248A

公开(公告)日：1979-05-08

申请号：US861364

申请日：1977-12-16

申请人： Dale E. Holmes ,  Donald W. Konkle ,  C. James Warner ,  Richard L. Hansen

发明人： Dale E. Holmes ,  Donald W. Konkle ,  C. James Warner ,  Richard L. Hansen

IPC分类号： A63B37/10 ,  A63B37/00

CPC分类号： A63B37/10 ,  A63B2208/12

摘要： A monolithic ball structure made of resilient material and consisting of two equal diameter spherical sections connected by a neck portion of reduced diameter. The neck portion is defined by a segment of a surface generated by the revolution of a planar arc about an axis lying in its plane. The axis in this particular structure coincides with the common axis connecting the center points of the two aforementioned spheres. The radius of the arc is one-eighth of the diameter of the sphere in one particular embodiment thereof. The resilient material has a Durometer hardness value in the range of 40 shore A to 60 shore A.

摘要翻译： 由弹性材料制成并由两个相等直径的球形部分组成的整体球形结构，该球形部分通过直径减小的颈部连接。 颈部由平面弧的旋转围绕位于其平面中的轴产生的表面的一部分限定。 该特定结构中的轴线与连接两个上述球体的中心点的公共轴线重合。 在其一个具体实施例中，弧的半径是球的直径的八分之一。 弹性材料的硬度计硬度范围为40岸A至60岸A.