| 摘要 |
PURPOSE:To stably support a rotary disk by abutting an auxiliary pin on a metal-made hub, locking a leaf spring to a locking member and loading a position regulation pin to a positioning hole nearly vertically. CONSTITUTION:The leaf spring 33 prolonged to the circumferential ridge of a driving hub 23 through the lower side of a throughhole 27 is fitted to the lower face of a driving hub 23 and the leaf spring 33 is locked at the circumferential ridge of the driving hub 23 at the locking member 39. The position regulation pin 37 is tilted so that its tip is parted from the rotary shaft 21 and supported to the leaf spring 33 and the auxiliary pin 51 is implanted to the leaf spring 33 so that the pin is inserted to the positioning hole 61 of the rotary disk 55 together with the positioning pin 37 and the pin 51 is protruded higher than the pin 37. In loading the rotary disk 55, the driving hub 23 is rotated and the auxiliary pin 51 is fitted to the positioning hole 61 and the positioning regulation pin 37 is fitted surely and simply to the hole 61 vertically or almost vertically to prevent the rotary disk 55 from being floated.
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