| 摘要 |
PURPOSE: To economically manufacture a turntable that is equipped with rotatable bearings. CONSTITUTION: A turntable element 10 has a flat bearing holder 16 and a plurality of bearing elements 22. The bearing elements are rotatably engaged in apertures 24 that are radially extending in radial inner side from outer rim of the bearing holder facing center of the rotary table element. The rotatable engagement is generated by support part of the bearing holder in coordination with the bearing elements. And, the turntable element having the bearing holder and a plurality of bearing elements is formed in one body. By this manner, the bearing elements are connected with the bearing holder through a frangible portion, this portion is broken while forcibly displacing the bearing elements, and the bearing elements are rotatably engaged with the bearing holder. |
