JPS63102066U

JPS63102066U -

Info

Publication number: JPS63102066U
Application number: JP20197286U
Authority: JP
Priority date: 1986-12-23
Filing date: 1986-12-23
Publication date: 1988-07-02

Description

[Brief explanation of the drawing]

第１図はこの考案による磁気デイスク装置を示
す揺動アーム支持軸の軸受ハウジング部の拡大断
面図、第２図及び第３図は第１図の磁気ヘツドと
トラツクの低温時及び高温時での位置関係を示す
説明図、第４図及び第５図は従来の磁気デイスク
装置の概要正面図及び側面断面図、第６図は第５
図の揺動アーム支持軸の軸受ハウジング部の拡大
断面図、第７図及び第８図は第６図の磁気ヘツド
とトラツクの低温時及び高温時での位置関係を示
す説明図である。１……磁気デイスク、２……磁気ヘツド、３…
…揺動アーム、４……支持軸、５……回動駆動源
（ステツピングモータ）、６……キヤプスタン、
７……バンド、８……駆動電動機、９……ハブ、
１２……軸受、２０……ベース、２０ａ……取付
け座、２０ｂ……取付け面、２１……軸受ハウジ
ング、２１ａ……取付け面。なお、図中同一符号
は同一又は相当部分を示す。 FIG. 1 is an enlarged sectional view of the bearing housing of the swing arm support shaft showing a magnetic disk device according to this invention, and FIGS. 2 and 3 show the magnetic head and track of FIG. 1 at low and high temperatures. 4 and 5 are schematic front and side sectional views of a conventional magnetic disk device, and FIG. 6 is an explanatory diagram showing the positional relationship.
7 and 8 are explanatory diagrams showing the positional relationship between the magnetic head and the track of FIG. 6 at low temperatures and high temperatures. 1...Magnetic disk, 2...Magnetic head, 3...
... Swinging arm, 4... Support shaft, 5... Rotating drive source (stepping motor), 6... Capstan,
7... Band, 8... Drive motor, 9... Hub,
12...Bearing, 20...Base, 20a...Mounting seat, 20b...Mounting surface, 21...Bearing housing, 21a...Mounting surface. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A magnetic disk rotated by a drive motor via a hub, a swinging arm whose middle portion is fixed to a rotatably supported support shaft, and a magnetic disk supported at the tip of this arm that corresponds to the magnetic disk. It consists of a head, means for rotating the swing arm by a rotation drive source, and a base that fixes the drive motor and rotation drive source and supports the support shaft by a bearing housing via a bearing. In the magnetic disk device, the bearing housing has a mounting surface opposite to the magnetic disk with respect to the support shaft, has an inclined surface whose upper part is larger than the lower part from the center line of the support shaft, and projects above the base. A magnetic disk device, which is mounted on an inclined mounting surface on the inside of a mounting seat provided with a base, and is made of a material that has a coefficient of thermal expansion different from that of the base and that reduces off-track due to temperature changes. .