| 摘要 |
PURPOSE:To obtain the position of a flexible disc, by providing a sensing member in the hollow part of a hollow disc laminated material, where plural flexible discs and spacers are piled on one shaft, without contacting with the disc laminated material. CONSTITUTION:In a disc laminated material 1, flexible discs 6 and spacers 7 having a center holes are piled alternately, and discs 8 at both ends are constricted in the axial direction by plural guide bolts 9 to make them into one body. A movable shaft 11 having the disc separating function is inserted to a hollow space 10 formed with center holes of discs 6 and spacers 7. The movable shaft 11 is provided with two partition plates 12 and a round nozzle 13 between them. A sensing member 14 fixed to the tip of the nozzle 13 faces to an inside edge 15 of the disc 6 or spacer 7 through a minute gap and moves in the axial direction to take out the number of discs as a change of the electrostatic capacity. Thus, the nozzle 13 is positioned to a desired disc 6 surely. |
