Rotary disk holding device

Abstract

Abstract PURPOSE:To improve the reliability of a rotary disk holding device, by providing an elastic part which presses a center shaft to two planes of a center hole and unifying the elastic part with a hub by means of thermoplastic resin, etc. in a form having elasticity. CONSTITUTION:A rotary disk and its holding device consist of a square center hole 10, a hub 9 having a driving hole 11 and set at a position apart from the hole 10, a turntable 17 containing a center shaft 12 and a driving shaft 13 with which the holes 10 and 11 are fitted to each other in order to mount the hub 9, and a carriage 15 containing a lower head 16 and an upper pad 14. The shaft 13 gives force F1 to the hub 9, and the shaft 12 gives force F3=F1 to the hub 9 as the reaction of the force F1. Thus the moment MD is produced to turn a disk 1 clockwise. While the disk 1 is held between the pad 14 and the head 16 and produces the frictional force F2. This force F2 serves as the counterclockwise revolution resistance moment MR to the shaft 12.

Inventors

• 👤 Hiroshi Kanai
• 👤 金井　博志
• 👤 Seiichi Hayashi
• 👤 精一 林

Bibliographic Details