| 摘要 |
Molded plastic yo-yo halves are connectible to each other by an axial having threaded ends that are adapted to threadably engage threaded inserts press fitted into a specially designed socket. The inserts are polygonal as are the sockets with the insertion end of the socket being provided with a shallow registration socket adapted to orient the threaded insert with respect to the socket. The yo-yo halves are molded separately and the inserts are press fitted into the sockets into a subsequent operation, resulting in manufacturing efficiencies as well as a strong properly aligned yo-yo construction. |
