JPH0454047U

JPH0454047U -

Info

Publication number: JPH0454047U
Application number: JP9655990U
Authority: JP
Priority date: 1990-09-17
Filing date: 1990-09-17
Publication date: 1992-05-08

Description

[Brief explanation of drawings]

第１図乃至第３図はこの考案に係るデイスクク
ランプ機構の実施例を示し、第１図は斜視図、第
２図はデイスクをターンテーブルに載置した状態
を示す断面図、第３図はデイスクをクランプした
状態を示す断面図である。第４図は従来例のデイ
スククランプ機構でデイスクをクランプした状態
を示す断面図である。主な符号の説明、１……分割軸、１ａ……第１
のテーパ、１ｂ……第１の孔、１ｃ……つば部、
２……クランパ、２ａ……中央凹部、２ｂ……孔
、２ｃ……押圧部、３……第１のバネ部材、４…
…第２のバネ部材、５……キヤツプ、６……分割
求心部材、６ａ……第２のテーパ部、７……ター
ンテーブル、７ａ……内周凹部、８……第３のバ
ネ部材、９……モータシヤフト、１０……デイス
ク、１０ａ……円孔。 1 to 3 show an embodiment of the disk clamp mechanism according to this invention, FIG. 1 is a perspective view, FIG. 2 is a sectional view showing the state in which the disk is placed on a turntable, and FIG. FIG. 3 is a cross-sectional view showing a state in which the disk is clamped. FIG. 4 is a sectional view showing a state in which a disk is clamped by a conventional disk clamp mechanism. Explanation of main symbols, 1...Division axis, 1a...1st
taper, 1b...first hole, 1c...flange part,
2... Clamper, 2a... Central recess, 2b... Hole, 2c... Pressing part, 3... First spring member, 4...
...Second spring member, 5...Cap, 6...Divided centripetal member, 6a...Second tapered portion, 7...Turntable, 7a...Inner peripheral recess, 8...Third spring member, 9...Motor shaft, 10...Disk, 10a...Circular hole.

Claims

[Scope of Claim for Utility Model Registration] 1. In a disk clamping mechanism consisting of a turntable fixed to a motor shaft and a clamper that presses the disk in order to fix the disk to the turntable, the inner circumference of the clamper is divided into a plurality of parts, and the lower outer circumference is divided into a plurality of parts. A dividing shaft having a first tapered part and a first hole in the center is provided in the part, and is supported slidably in the vertical and radial directions, and the dividing shaft is urged in the central direction and downward direction, respectively. First and second spring members are provided, the inner circumference of the turntable is divided into a plurality of parts, a second tapered part guides the disc at the upper part of the outer circumference, and a second tapered part is fitted to the center part of the turntable. A split centripetal member having a hole is provided and supported slidably in the radial direction,
A third spring member is provided that urges this split centripetal member toward the center, and when the disk is clamped, the motor shaft and the first hole fit together, and the first tapered part fits into the second hole. A disk clamp mechanism characterized in that it is configured to push and spread a mating division shaft and a division centripetal member. 2. The disk clamp mechanism according to claim 1, wherein the second hole is an upwardly opened tapered hole to reduce frictional resistance when fitting with the first tapered portion.