公开(公告)号：US6147950A

公开(公告)日：2000-11-14

申请号：US944685

申请日：1997-10-07

申请人： Hiroshi Sakamoto ,  Nobuaki Hisamatsu ,  Tomohiro Obita ,  Takahiro Yamaguchi ,  Yozo Tanaka

发明人： Hiroshi Sakamoto ,  Nobuaki Hisamatsu ,  Tomohiro Obita ,  Takahiro Yamaguchi ,  Yozo Tanaka

IPC分类号： G11B17/22 ,  G11B7/28 ,  G11B27/00 ,  G11B27/034 ,  G11B27/11 ,  G11B27/34 ,  G11B27/36 ,  G11B7/80

CPC分类号： G11B27/36 ,  G11B27/002 ,  G11B27/034 ,  G11B27/11 ,  G11B7/28 ,  G11B2220/20 ,  G11B2220/218 ,  G11B2220/2525 ,  G11B2220/2545 ,  G11B2220/65 ,  G11B27/34

摘要： A turntable is a table mounted to a shaft (4) of a spindle motor and the turntable supports a laminated disc thereon and drives the disc in rotation. The laminated disc includes a lower disc and an upper disc stacked on the lower disc, and is supported on a disc-supporting surface. When the disc is loaded on the turntable, a fitting member fits into the center hole of the laminated disc for centering the laminated disc with respect to the shaft. The fitting member fits the center hole of the lower disc when the laminated disc is supported on said disc-supporting surface. The turntable may include a tapered member which guides the laminated disc to the disc-supporting surface. The laminated disc includes lower and upper discs each having an edge which defines the center hole. The corners of the edges are cut away along a circumference of the center hole. The upper and lower discs are placed together so that the cut-away corner directly face each other.

摘要翻译： 转台是安装在主轴电动机的轴（4）上的工作台，并且转台在其上支撑层压盘，并驱动盘旋转。 层压盘包括下盘和堆叠在下盘上的上盘，并且支撑在盘支撑表面上。 当盘被装载在转盘上时，配合构件装配在层压盘的中心孔中，用于使层压盘相对于轴定心。 当层压盘被支撑在所述盘支撑表面上时，配合构件适合于下盘的中心孔。 转台可以包括锥形构件，其将层叠的盘引导到盘支撑表面。 层压盘包括每个具有限定中心孔的边缘的下盘和上盘。 沿着中心孔的圆周切割边缘的角。 上下盘被放置在一起，使得切割角直接面对彼此。