JPS62202661U

JPS62202661U -

Info

Publication number: JPS62202661U
Application number: JP8932586U
Authority: JP
Priority date: 1986-06-13
Filing date: 1986-06-13
Publication date: 1987-12-24

Description

[Brief explanation of the drawing]

第１図ないし第３図はこの考案の実施例を説明
するためのもので、第１図は実施例に係るデイス
ク駆動装置の要部平面図、第２図は第１図におけ
るＣ−Ｃ線断面図、第３図ａ，ｂ，ｃはそれぞれ
センタリングの動作を説明する動作説明図、第４
図ないし第９図は従来例を説明するためのもので
、第４図は従来例に係るデイスク駆動装置の要部
断面図、第５図はターンテーブル部の分解斜視図
、第６図はばね部材の平面図、第７図はセンタリ
ング動作を説明する概略断面図、第８図ａ，ｂ，
ｃはそれぞれセンタリング動作を示す説明図、第
９図はセンタリング時の駆動ピンと金属ハブの関
係を示す概略断面図、第１０図は駆動されるデイ
スクカートリツジの底面図である。１……デイスク駆動モータ、２……スピンドル
軸、３……ターンテーブル、４……ＰＧ（パルス
ジエネレータ）、１９……駆動ピン、２０……Ｐ
Ｇマグネツト、２１……ＰＧピツクアツプ、２３
……デイスク、３１……支持部材。 1 to 3 are for explaining an embodiment of this invention. FIG. 1 is a plan view of the main part of a disk drive device according to the embodiment, and FIG. 2 is a line taken along line C-C in FIG. 1. The cross-sectional view, Figures 3a, b, and c are operation explanatory diagrams explaining the centering operation, and Figure 4.
9 to 9 are for explaining the conventional example. FIG. 4 is a sectional view of main parts of a disk drive device according to the conventional example, FIG. 5 is an exploded perspective view of the turntable section, and FIG. 6 is a spring A plan view of the member, FIG. 7 is a schematic sectional view explaining the centering operation, and FIGS. 8a, b,
FIG. 9 is a schematic sectional view showing the relationship between the drive pin and the metal hub during centering, and FIG. 10 is a bottom view of the disk cartridge being driven. 1...Disc drive motor, 2...Spindle axis, 3...Turntable, 4...PG (pulse generator), 19...Drive pin, 20...P
G Magnet, 21...PG Pickup, 23
... Disc, 31 ... Supporting member.

Claims

[Scope of utility model registration request]

A turntable is integrally attached to the spindle shaft of a motor that rotationally drives an information recording medium, and a drive pin is inserted through a drive pin insertion hole formed in the turntable and protrudes above the information recording medium mounting surface of the turntable. , a drive pin that transmits the rotational force of a drive motor to an information recording medium, and records or reproduces information, or records and reproduces information by rotationally driving the information recording medium. A disk drive device characterized in that a member that rotates integrally is provided between the spindle shaft and the drive pin, and further a signal generating means is provided on this member.