JPS6211254U

JPS6211254U -

Info

Publication number: JPS6211254U
Application number: JP9902585U
Authority: JP
Priority date: 1985-07-01
Filing date: 1985-07-01
Publication date: 1987-01-23

Description

[Brief explanation of the drawing]

第１図ないし第６図はこの考案の実施例を説明
するためのもので、第１図は第１の実施例に係る
クランプ装置の概略を示す断面図、第２図は第１
の実施例においてコレツトが傾いてハブに当接し
た状態を示す概略断面図、第３図はコレツトとハ
ブの関係を示す平面図、第４図は第２の実施例に
係るコレツトとハブの概略を示す断面図、第５図
は第２の実施例においてコレツトが傾いてハブに
当接した形状を示す概略断面図、第６図は第２の
実施例におけるコレツトとハブの関係を示す要部
断面図、第７図ないし第１０図は従来例を説明す
るためのもので、第７図はクランプ装置の概略を
示す断面図、第８図はその要部断面図、第９図は
コレツトが傾いた際のコレツトとハブの状態を示
す平面図、第１０図はその概略を示す断面図であ
る。２……スピンドル、２ａ……環状壁、４……ハ
ブ、４ａ……セグメント、４ｂ……縁部、４ｃ…
…当接部、４ｄ……当接縁、５……コレツト、５
ｂ……当接部、１１……デイスク、Ｏ……傾動中
心、Ｒ……当接部の半径。 1 to 6 are for explaining an embodiment of this invention. FIG. 1 is a sectional view schematically showing a clamp device according to the first embodiment, and FIG.
FIG. 3 is a plan view showing the relationship between the collet and the hub, and FIG. 4 is a schematic diagram of the collet and hub according to the second embodiment. 5 is a schematic sectional view showing the shape of the collet tilted and abutting the hub in the second embodiment. FIG. 6 is a main part showing the relationship between the collet and the hub in the second embodiment. The sectional views, FIGS. 7 to 10, are for explaining the conventional example. FIG. 7 is a sectional view showing the outline of the clamp device, FIG. 8 is a sectional view of the main part thereof, and FIG. FIG. 10 is a plan view showing the state of the collet and hub when tilted, and a cross-sectional view schematically showing the state of the collet and hub. 2... Spindle, 2a... Annular wall, 4... Hub, 4a... Segment, 4b... Edge, 4c...
...Abutment part, 4d...Abutment edge, 5...Collection, 5
b...Contacting part, 11...Disk, O...Tilt center, R...Radius of the contacting part.

Claims

[Scope of utility model registration request]

The disk is centered by the upper surface of the annular wall of the spindle and the segment of the flexible hub, and a part of the outer peripheral surface of the collet is brought into contact with and pressed against a part of the inner peripheral surface of the hub, and the spindle In a disk clamping device that clamps and rotates a disk by an upper surface of an annular wall and an outwardly protruding edge of the hub, the contact portion on the inner peripheral surface side of the hub and the outer periphery of the collet are in contact with each other. A disk clamp device characterized in that at least one of the contact portions on the surface side is formed into a substantially spherical shape with a radius equal to the distance between the center of tilting of the collet and the contact point between the collet and the hub.