JPS6161650U

JPS6161650U -

Info

Publication number: JPS6161650U
Application number: JP14470584U
Authority: JP
Priority date: 1984-09-25
Filing date: 1984-09-25
Publication date: 1986-04-25

Description

[Brief explanation of the drawing]

第１図は本考案の実施例としてのデイスク駆動
機構の要部縦断面図、第２図及び第３図は該デイ
スク駆動機構の一部詳細図、第４図は第１図に示
されない他のターンテーブルとその周辺部材の縦
断面図である。主要部分の符号の説明、１…支持体、２…押圧
部材、２ａ…テーパ部、２ｂ…凸部、２ｃ，２ｄ
…環状押圧突起、３…固定部材、４…リフト部材
、５，１９…ターンテーブル、７…球状ベアリン
グ部材、８…ベアリング受け部材、９…固定板、
１０…ネジ、１４…センタ台、１４ａ…凹部、１
５…センタリングハブ、１７…デイスク。 FIG. 1 is a vertical cross-sectional view of a main part of a disk drive mechanism as an embodiment of the present invention, FIGS. 2 and 3 are detailed views of a part of the disk drive mechanism, and FIG. 4 is a view of other parts not shown in FIG. 1. FIG. 3 is a vertical cross-sectional view of the turntable and its peripheral members. Explanation of symbols of main parts, 1...Support body, 2...Press member, 2a...Tapered part, 2b...Convex part, 2c, 2d
...Annular pressing projection, 3...Fixing member, 4...Lift member, 5, 19...Turntable, 7...Spherical bearing member, 8...Bearing receiving member, 9...Fixing plate,
10...screw, 14...center stand, 14a...recess, 1
5...Centering hub, 17...Disc.

Claims

[Scope of utility model registration request]

A turntable that rotates a disc to be played, a pressing member that cooperates with the turntable to clamp the disc, and a support mechanism that rotatably supports the pressing member, the turntable and the pressing member A convex portion and a concave portion that fit into each other are provided at each rotation center of the press member, and the support mechanism includes a spherical bearing member that is a disc pressing back surface of the press member and is brought into contact with the rotation center of the press member, and a cylindrical a fixing member that is formed in a shape and is fitted onto the bearing member so that the upper end of the bearing member protrudes, and fixes the bearing member to the pressing member; a support member having a contact surface that contacts the upper end portion and rotatably supports the pressing member, and a portion of the pressing member that contacts the bearing member has a contact surface that extends from the disk pressing back surface to the derosc pressing surface. A disk drive mechanism characterized in that a tapered portion is formed whose diameter decreases in the direction toward which the fixing member faces, and the inner circumferential surface of the fixing member engages only the upper half of the bearing member.