JPH0481829B2 - - Google Patents
Info
- Publication number
- JPH0481829B2 JPH0481829B2 JP18265884A JP18265884A JPH0481829B2 JP H0481829 B2 JPH0481829 B2 JP H0481829B2 JP 18265884 A JP18265884 A JP 18265884A JP 18265884 A JP18265884 A JP 18265884A JP H0481829 B2 JPH0481829 B2 JP H0481829B2
- Authority
- JP
- Japan
- Prior art keywords
- head
- head arm
- magnetic disk
- magnetic
- carriage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000006866 deterioration Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、磁気デイスク駆動装置に係り、特に
磁気ヘツド等回りの構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a magnetic disk drive device, and particularly to the structure around a magnetic head.
一般的に、磁気デイスク駆動装置（以下FDD
と略す）は、キヤリツジ先端部に磁気ヘツドを設
け、そのキヤリツジとステツピングモータをスチ
ールベルト等の手段で連結し、磁気デイスク面に
沿つてキヤリツジが平行移動して、磁気ヘツドが
磁気デイスク上の規定のトラツクに位置決めされ
る構成であることは、特公昭53−123911により周
知となつているものである。
Generally, magnetic disk drive (FDD)
(abbreviated as ), a magnetic head is installed at the tip of a carriage, and the carriage and a stepping motor are connected by means such as a steel belt. The arrangement of positioning on a prescribed track is well known from Japanese Patent Publication No. 53-123911.
又、上記キヤリツジの上側に設けられた磁気ヘ
ツド等が取り付けられたヘツドアームをヘツドア
ーム押しバネによつて規定圧力で磁気ヘツドに押
しつける構成も周知となつているものである。 It is also well known that a head arm, to which a magnetic head or the like is attached, is mounted on the upper side of the carriage and is pressed against the magnetic head with a specified pressure by a head arm push spring.
以上の周知構成をもとにした、現状のFDDで
はヘツドアーム押しバネはヘツドアームに設けら
れた溝状のバネ当接部挿入され、又この溝部には
磁気デイスクの中心方向に対するストツパーがな
い為次の問題があつた。 In the current FDD based on the above well-known configuration, the head arm push spring is inserted into a groove-shaped spring contact part provided on the head arm, and since this groove has no stopper in the direction of the center of the magnetic disk, the following There was a problem.
(1) 組立時、ヘツドアームを押し上げてカセツト
ホルダーを組み付ける工程があるが、このとき
必要以上にヘツドアームを押し上げてしまう
と、ヘツドアーム押しバネがヘツドアームの溝
状のバネ当接部から外れてしまう。(1) During assembly, there is a step in which the head arm is pushed up to assemble the cassette holder, but if the head arm is pushed up more than necessary at this time, the head arm push spring will come off the groove-shaped spring contact part of the head arm.
(2) 落下衝撃時等、強い衝撃が加わると、上記(1)
と同様にヘツドアーム押しバネがヘツドアーム
の溝状のバネ当接部から外れてしまう。(2) If a strong impact is applied, such as during a fall, the above (1)
Similarly, the head arm push spring comes off from the groove-shaped spring contact portion of the head arm.
上記(1)，(2)よりヘツドアームを規定圧力で磁気
ヘツドに押しつける事ができなくなる為、ヘツド
タツチの悪化（性能の低下）を招く結果となる。 From (1) and (2) above, it is no longer possible to press the head arm against the magnetic head with the specified pressure, resulting in deterioration in head touch (deterioration in performance).
本発明の目的は、上記した現状構造（従来技
術）の問題点をなくし、ヘツドタツチの品質を保
持する事である。
The purpose of the present invention is to eliminate the problems of the current structure (prior art) described above and maintain the quality of the head touch.
本発明の特徴とするところは、ヘツドアーム
の、磁気デイスクに規定圧力で押しつける為のヘ
ツドアーム押しバネ当接部の周囲に、該ヘツドア
ーム押しバネ外れ防止用の壁を設けた事である。
A feature of the present invention is that a wall for preventing the head arm push spring from coming off is provided around the contact portion of the head arm push spring for pressing the head arm against the magnetic disk with a specified pressure.
以下、図面に基づき本発明の一実施例を説明す
る。まず、現状のFDDの全体構成について説明
する。
Hereinafter, one embodiment of the present invention will be described based on the drawings. First, the overall configuration of the current FDD will be explained.
１はシヤーシであり、装置の各部品が取り付け
られる。４は磁気デイスク１１を回転させる為の
駆動装置であり、その中心部先端には磁気デイス
ク１１を装着するバブ受け１０が設けられてい
る。 1 is a chassis to which each component of the device is attached. Reference numeral 4 denotes a drive device for rotating the magnetic disk 11, and a bub receiver 10 on which the magnetic disk 11 is mounted is provided at the tip of its center.
１５は磁気デイスク１１をFDD本体に挿入し
たとき、ハブ受１０に装着する為のガイド及び押
えとなるカセツトホルダーである。１６は磁気デ
イスク１１をハブ受け１０にある圧力で押し付け
て、回転駆動させるためのコレツトであり、コレ
ツトホルダー１７に回転自在に取り付けられ、さ
らにコレツトホルダー１７はカセツトホルダー１
５の一部に支持、取付けられる。７，８は磁気デ
イスク１１に書き込み、読み出しを行うための第
１磁気ヘツドと第２磁気ヘツドであり、第１磁気
ヘツド７はキヤリツジ５に接着等の手段により取
り付けられている。又、第２磁気ヘツド８は、ヘ
ツドアーム１２に接着等の手段により取り付けら
れている。ヘツドアーム１２にはヘツドアームバ
ネ１４が一体成形され、ヘツドアーム１２はヘツ
ドアームバネ１４を介してキヤリツジ５に上下動
自在に取り付けられている。又、ヘツドアーム１
２はヘツドアーム押しバネ１３により規定圧力で
第１磁気ヘツド７、第２磁気ヘツド８を磁気デイ
スク１１に押しつける構成となつており、ヘツド
アーム押しバネ１３はキヤリツジ５に取付ネジ２
２により締付固定された軸支え１９のバネ挿入用
突起２１を支点として挿入され、その先端はヘツ
ドアーム１２の一部に設けられた溝状のバネ当接
部１８に挿入されている。３はキヤリツジ５を磁
気デイスク１１面に沿つて平行移動させる為のス
テツピングモータであり、スチールベルト２３を
介してキヤリツジ５に連結され、キヤリツジ５は
ガイドシヤフト６を介して摺動可能にシヤーシ１
に取り付けられる。２は各部品を制御するための
上基板であり、シヤーシ１に各部品取付後、最後
に取り付けられる。 Reference numeral 15 designates a cassette holder that serves as a guide and a press for attaching the magnetic disk 11 to the hub receiver 10 when it is inserted into the FDD main body. Reference numeral 16 denotes a collet for pressing the magnetic disk 11 against the hub receiver 10 with a certain pressure to drive it to rotate, and is rotatably attached to a collet holder 17, and the collet holder 17 is also attached to the cassette holder 1.
Supported and attached to a part of 5. Reference numerals 7 and 8 denote a first magnetic head and a second magnetic head for reading and writing data to and from the magnetic disk 11, and the first magnetic head 7 is attached to the carriage 5 by adhesive or other means. Further, the second magnetic head 8 is attached to the head arm 12 by adhesive or other means. A head arm spring 14 is integrally molded on the head arm 12, and the head arm 12 is attached to the carriage 5 via the head arm spring 14 so as to be vertically movable. Also, head arm 1
2 is configured to press the first magnetic head 7 and the second magnetic head 8 against the magnetic disk 11 with a specified pressure by a head arm push spring 13, and the head arm push spring 13 is attached to the carriage 5 by a mounting screw 2.
The spring insertion protrusion 21 of the shaft support 19, which is tightened and fixed by the shaft support 2, is used as a fulcrum for insertion, and its tip is inserted into a groove-shaped spring contact portion 18 provided in a part of the head arm 12. 3 is a stepping motor for moving the carriage 5 in parallel along the surface of the magnetic disk 11, and is connected to the carriage 5 via a steel belt 23, and the carriage 5 is slidably attached to the chassis 1 via a guide shaft 6.
can be attached to. Reference numeral 2 denotes an upper board for controlling each component, which is attached last after each component is attached to the chassis 1.
以上の構成のもとに、カセツトホルダー１５を
組み付ける時には、ヘツドアーム１２を磁気デイ
スク１１末装着時よりも図の矢印方向に押し上げ
る必要があるが、この時必要以上に押し上げてし
まうとヘツドアーム押しバネ１３の先端が溝状の
バネ当接部１８から外れてしまい、第１磁気ヘツ
ド７、第２磁気ヘツド８を磁気デイスク１１に規
定の圧力で押しつける事ができなくなり、ヘツド
タツチの悪化（性能の低下）を招く結果となつて
しまう。このことは、落下衝撃時等、強い衝撃が
加わつた時も全く同様の結果となつてしまう。 When assembling the cassette holder 15 based on the above configuration, it is necessary to push the head arm 12 up in the direction of the arrow in the figure more than when the magnetic disk 11 is attached at the end, but if it is pushed up more than necessary at this time, the head arm push spring 13 The tip of the head comes off the groove-shaped spring contact part 18, making it impossible to press the first magnetic head 7 and second magnetic head 8 against the magnetic disk 11 with the specified pressure, resulting in poor head touch (deterioration in performance). This results in the following. This results in exactly the same result when a strong impact is applied, such as during a fall impact.
次に本発明によるヘツドアーム部の構造につい
て説明する。ヘツドアーム１２のヘツドアーム押
しバネ１３の先端が挿入されるバネ当接部１８の
周囲には壁１９が設けられている。この壁１９の
バネ当接部１８からの高さは、ヘツドアーム押し
バネ１３の先端のＲ部よりもすこし高い程度のも
のである。又この壁１９は磁気デイスク１１の中
心方向及び、その両側面に設けられている。以上
本発明の構造によれば、カセツトホルダー１５組
み付け時、ヘツドアーム１２を磁気デイスク１１
未装着時よりも必要以上に図の矢印方向に押し上
げるとヘツドアーム押しバネ１３の先端がヘツド
アーム１２に設けた壁１９に当たり、ヘツドアー
ム１２はそれ以上、上がらなくなり、ヘツドアー
ム押しバネ１３のバネ当接部１８からの外れはな
くなる。 Next, the structure of the head arm portion according to the present invention will be explained. A wall 19 is provided around a spring contact portion 18 into which the tip of the head arm push spring 13 of the head arm 12 is inserted. The height of this wall 19 from the spring contact portion 18 is slightly higher than the R portion at the tip of the head arm push spring 13. Further, this wall 19 is provided toward the center of the magnetic disk 11 and on both sides thereof. According to the structure of the present invention, when the cassette holder 15 is assembled, the head arm 12 is attached to the magnetic disk 11.
If the head arm push spring 13 is pushed up in the direction of the arrow in the figure more than necessary when it is not installed, the tip of the head arm push spring 13 will hit the wall 19 provided on the head arm 12, and the head arm 12 will no longer rise, causing the spring contact portion 18 of the head arm push spring 13 to There will be no deviation from it.
落下衝撃時等、強い衝撃が加わつた時も全く同
様にヘツドアーム押しバネ１３のバネ当接部１８
からの外れはなくなる。 The spring abutting portion 18 of the head arm push spring 13 is also
There will be no deviation from it.
以上本発明によれば、組立時、落下衝撃時等の
ヘツドアーム押しバネのヘツドアーム当接部から
の外れがなくなる為、常にヘツドアームを規定圧
力で磁気ヘツドに押しつける事ができ、安定した
ヘツドタツチ（性能）を得る事ができるという効
果がある。
As described above, according to the present invention, the head arm pressing spring does not come off from the head arm contact portion during assembly, drop impact, etc., so the head arm can always be pressed against the magnetic head with a specified pressure, resulting in stable head touch (performance). It has the effect of being able to obtain
第１図は現状のFDDを上基板側から見た図、
第２図は磁気デイスク末装着時の要部断面図、第
３図は磁気デイスク装着時の要部断面図、第４図
は本発明によるヘツドアーム部の構造を示す断面
図、第５図は第４図のＢ視図である。
４……駆動装置、５……キヤリツジ、７……磁
気ヘツド(1)、８……磁気ヘツド(2)、１０……ハブ
受け、１１……磁気デイスク、１２……ヘツドア
ーム、１３……ヘツドアーム押しバネ、１８……
バネ当接部、１９……壁。
Figure 1 is a diagram of the current FDD viewed from the upper board side.
FIG. 2 is a cross-sectional view of the main part when the magnetic disk is installed at the end, FIG. 3 is a cross-sectional view of the main part when the magnetic disk is installed, FIG. 4 is a cross-sectional view showing the structure of the head arm according to the present invention, and FIG. 4 is a view from B in FIG. 4. FIG. 4... Drive device, 5... Carriage, 7... Magnetic head (1), 8... Magnetic head (2), 10... Hub holder, 11... Magnetic disk, 12... Head arm, 13... Head arm Push spring, 18...
Spring contact part, 19... wall.
Claims (1)
気デイスクに書き込み、読み出しを行うための磁
気ヘツドをキヤリツジの上下にあるいは片側に設
け、駆動装置先端にリブ受を備えて、磁気デイス
クを装着させ、磁気ヘツドを磁気デイスク面に平
行移動させる様構成した磁気デイスク駆動装置に
おいて、キヤリツジの上側に設けられた磁気ヘツ
ド等が取り付けられたヘツドアームの、磁気デイ
スクに規定圧力で押しつけるためのヘツドアーム
押しバネ当接部周囲に、該ヘツドアーム押しバネ
外れ防止用の壁を設けた事を特徴とする磁気デイ
スク駆動装置。1. A drive device for rotationally driving a magnetic disk and a magnetic head for writing and reading data on the magnetic disk are installed above and below the carriage or on one side, and a rib holder is provided at the tip of the drive device to attach the magnetic disk. In a magnetic disk drive device configured to move the head parallel to the magnetic disk surface, the head arm push spring contact portion of the head arm to which the magnetic head, etc., is attached, which is provided on the upper side of the carriage, is pressed against the magnetic disk with a specified pressure. A magnetic disk drive device characterized in that a wall is provided around the head arm to prevent the head arm push spring from coming off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18265884A JPS6161263A (en) | 1984-09-03 | 1984-09-03 | Magnetic disk driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18265884A JPS6161263A (en) | 1984-09-03 | 1984-09-03 | Magnetic disk driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6161263A JPS6161263A (en) | 1986-03-29 |
| JPH0481829B2 true JPH0481829B2 (en) | 1992-12-25 |
Family
ID=16122166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18265884A Granted JPS6161263A (en) | 1984-09-03 | 1984-09-03 | Magnetic disk driving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6161263A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2570702B2 (en) * | 1986-10-02 | 1997-01-16 | セイコーエプソン株式会社 | Magnetic recording device |
| JPH0428177U (en) * | 1990-07-03 | 1992-03-05 |
-
1984
- 1984-09-03 JP JP18265884A patent/JPS6161263A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6161263A (en) | 1986-03-29 |
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