JPH0376245U

JPH0376245U -

Info

Publication number: JPH0376245U
Application number: JP13443089U
Authority: JP
Priority date: 1989-11-21
Filing date: 1989-11-21
Publication date: 1991-07-31
Anticipated expiration: 2004-11-21
Also published as: JP2518941Y2

Description

[Brief explanation of drawings]

第１図〜第９図は本考案の第１実施例図であつ
て、第１図はデイスク駆動装置の要部断面図、第
２図はデイスク駆動装置の下面図、第３図は本例
のデイスク駆動装置に適用される情報記録デイス
クの一例を示す断面図、第４図はこの情報記録デ
イスクの要部平面図、第５図は係合ピンと情報記
録デイスクとの係合動作を示す要部平面図、第６
図は係合ピンと情報記録デイスクとの当接状態を
示す要部断面図、第７図は係合ピンと情報記録デ
イスクとの係合状態を示す要部断面図、第８図及
び第９図は係合ピンの配列を示す要部平面図であ
る。第１０図〜第１２図は本考案の第２実施例図
であつて、第１０図はデイスク駆動装置の非クラ
ンプ状態を示す要部断面図、第１１図はデイスク
駆動装置のクランプ状態を示す要部断面図、第１
２図はデイスク駆動装置の要部斜視図である。１……スピンドル、２……ターンテーブル、３
……マグネツト、４……ばね部材、５……係合ピ
ン、１２……転動手段、３１……レバー、３２…
…回転軸、３３……押圧部材。 1 to 9 are views of a first embodiment of the present invention, in which FIG. 1 is a sectional view of the main part of the disk drive device, FIG. 2 is a bottom view of the disk drive device, and FIG. 3 is the present embodiment. FIG. 4 is a cross-sectional view showing an example of an information recording disk applied to a disk drive device, FIG. 4 is a plan view of the main part of this information recording disk, and FIG. Sectional plan, No. 6
The figure is a cross-sectional view of the main part showing the state of contact between the engagement pin and the information recording disk, FIG. 7 is a cross-sectional view of the main part showing the state of engagement between the engagement pin and the information recording disk, and FIGS. 8 and 9 are FIG. 3 is a plan view of main parts showing an arrangement of engagement pins. 10 to 12 are views of a second embodiment of the present invention, in which FIG. 10 is a sectional view of the main part showing the disk drive device in an unclamped state, and FIG. 11 shows the disk drive device in a clamped state. Main part sectional view, 1st
FIG. 2 is a perspective view of the main parts of the disk drive device. 1...Spindle, 2...Turntable, 3
... Magnet, 4 ... Spring member, 5 ... Engagement pin, 12 ... Rolling means, 31 ... Lever, 32 ...
...rotating shaft, 33...pressing member.

Claims

[Claims for Utility Model Registration] (1) A spindle for centering an information recording disk, a turntable attached to this spindle for placing the information recording disk, and a turntable attached to this turntable for placing the information recording disk. A disk drive device comprising an engaging pin that engages in a rotational direction, characterized in that a rolling means that rolls in contact with the surface of the information recording disk is provided at the tip of the engaging pin. Drive device. (2) a spindle for centering the information recording disk; a turntable attached to the spindle on which the information recording disk is placed; a disk clamp member disposed opposite to the turntable; and a disk clamp member attached to the turntable. and an engagement pin that engages the disk clamp member in a rotational direction, wherein a rolling means is provided at a tip end of the engagement pin for rolling in contact with a surface of the disk clamp member. A disk drive device characterized by: (3) The disk drive device according to claim 1 or 2, wherein the rolling means is a spherical body. (4) The disk drive device according to claim 1 or 2, wherein the rolling means is a roller. (5) The disk drive device according to claim 1 or 2, wherein the turntable is provided with a plurality of engagement pins. (6) In claim 1, when one or more of the engagement pins are engaged with an information recording disk in which a plurality of engagement holes are equally formed at positions facing the engagement pins. When engaged with a mating hole, the other mating pins are disposed on a flat surface between two adjacent mating holes, so that the number of mating pins is larger than that of the mating pins that are engaged with the mating hole. A disk drive device characterized by being provided with an engagement pin. (7) In claim 2, when any one or more of the engagement pins are engaged with a disc clamp member in which a plurality of engagement holes are equally formed at positions facing the engagement pins. When engaged with a mating hole, the other mating pins are disposed on a flat surface between two adjacent mating holes, so that the number of mating pins is larger than that of the mating pins that are engaged with the mating hole. A disk drive device characterized by being provided with an engagement pin.