JPS59185065A - Head vibrationproof structure of floppy disc device - Google Patents
Head vibrationproof structure of floppy disc deviceInfo
- Publication number
- JPS59185065A JPS59185065A JP5973983A JP5973983A JPS59185065A JP S59185065 A JPS59185065 A JP S59185065A JP 5973983 A JP5973983 A JP 5973983A JP 5973983 A JP5973983 A JP 5973983A JP S59185065 A JPS59185065 A JP S59185065A
- Authority
- JP
- Japan
- Prior art keywords
- head
- medium
- vibration absorber
- dynamic vibration
- damping effect
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
- G11B33/08—Insulation or absorption of undesired vibrations or sounds
Abstract
Description
【発明の詳細な説明】
発明の技術分野
本発明はフロッピィディスク装置に係シ、特にディスク
媒体に対する情報の安定したリード、ライトを可能にす
るヘッド防振構造に関する。TECHNICAL FIELD OF THE INVENTION The present invention relates to a floppy disk device, and more particularly to a head vibration isolation structure that enables stable reading and writing of information to and from a disk medium.
従来技術と問題点
従来のフロッピィディスク装置のヘッド組立構造を第１
，２図に示す。第１図は正面図、第２図は平面図で、図
中、１は下部ヘッド、２は上部ヘッドである。下部ヘッ
ド１は、ヘッド支持板６にジンバル４を介し支持されて
いる。上部ヘッド２は、ヘッドアーム５にジンバル６を
介し支持され、ヘッドアーム５はヘッド支持板３に板は
ね７を介し連結されている。８，９はシールド板である
。ヘッド１，２はディスク媒体を挾持して該ディスク媒
体に対する情報のリード、ライトを行う。Conventional technology and problems The head assembly structure of the conventional floppy disk device was
, shown in Figure 2. FIG. 1 is a front view, and FIG. 2 is a plan view. In the figures, 1 is a lower head and 2 is an upper head. The lower head 1 is supported by a head support plate 6 via a gimbal 4. The upper head 2 is supported by a head arm 5 via a gimbal 6, and the head arm 5 is connected to a head support plate 3 via a plate spring 7. 8 and 9 are shield plates. Heads 1 and 2 sandwich a disk medium and read and write information to and from the disk medium.
ところが、このようなヘッド組立構造を有するフロッピ
ィディスク装置においては、長時間使用による媒体表面
状態の変化（ｅ面劣化）に伴って媒体とヘッド間に１０
００Ｈｚ以下の異常振動（異常音）が発生し、リードエ
ラーが発生するのみならず、媒体剥離を起すという問題
があった。However, in a floppy disk device having such a head assembly structure, due to changes in the surface condition of the medium (e-surface deterioration) due to long-term use, there is a gap of 10% between the medium and the head.
There is a problem in that abnormal vibrations (abnormal sounds) of 00 Hz or less occur, which not only cause read errors but also cause medium peeling.
発明の目的
本発明は上述の問題を解決するだめのもので、媒体に対
する情報の安定したリード、ライトを可能にするヘッド
防振構造を提供することを目的としている。OBJECTS OF THE INVENTION The present invention is intended to solve the above-mentioned problems, and it is an object of the present invention to provide a head vibration isolation structure that enables stable reading and writing of information to and from a medium.
発明の構成
本発明では、上述の目的を達成するため、可動側のヘッ
ドを支持するヘッドアームにダンピング効果の高い動吸
振器を取シ付けてヘッドの振動を防止している。Structure of the Invention In order to achieve the above-mentioned object, the present invention prevents head vibration by attaching a dynamic vibration reducer with a high damping effect to the head arm that supports the movable head.
発明の実施例
以下、第６図乃至第５図に関連して本発明の詳細な説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to FIGS. 6-5.
第３図は本発明を適用したヘッド組立槁′造を示す正面
図、第４図は同平面図で、従来と同一構成の部材は従来
と同一符号を付している。FIG. 3 is a front view showing a head assembly structure to which the present invention is applied, and FIG. 4 is a plan view of the same, in which members having the same structure as the conventional one are given the same symbols as the conventional one.
図中、１１はダンピング効果の高い動吸振器（粘性ダン
パ）で、シールド板９のヘッド２と対向する位置に取シ
付けられている。In the figure, reference numeral 11 denotes a dynamic vibration absorber (viscous damper) with a high damping effect, which is attached to a position facing the head 2 of the shield plate 9.
動吸振器１１は、第５図に詳細を示すように、板厚０．
２開の銅板よシ形成されたケース１２の中に粘度５００
〜１０００ ｃａｔのシリコンオイル１６を入れ、その
中に重さ２ｇ程度の銅、鉛等の重！１１１４を収納して
構成されている。As shown in detail in FIG. 5, the dynamic vibration absorber 11 has a plate thickness of 0.
A case 12 with a viscosity of 500
~ Put 1000 cat silicone oil 16, and put about 2g of copper, lead, etc. in it! 1114.
このような動吸振器を設けていない従来の構造の場合は
、前述したように媒体とヘッドの間に媒体表面劣化に伴
って１０００Ｈｚ以下の異常振動が発生し、ひいては媒
体剥離が発生するという問題があった。この振動を更に
詳しく説明すると、可動側のヘッド２が回転方向に刻し
て前後方向に振動し、かつ該ヘッド２が媒体と一体にな
って振動を起す。In the case of a conventional structure that does not have such a dynamic vibration absorber, as mentioned above, abnormal vibrations of 1000 Hz or less occur between the medium and the head due to the deterioration of the medium surface, which in turn causes the problem of medium separation. was there. To explain this vibration in more detail, the head 2 on the movable side vibrates in the forward and backward directions in the direction of rotation, and the head 2 vibrates in unison with the medium.
このように従来問題となっていた振動は、動吸振器１１
を付加することにより除去（吸振）されることが実験の
結果確かめられた。実験に用いた動吸振器１１の寸法は
、高さＨ＝ ２ ｍｍ 、外径Ｄ＝１２ｒｒａｎ。In this way, the vibration that has been a problem in the past can be solved by the dynamic vibration absorber 11
Experiments have confirmed that vibration can be removed (absorbed) by adding . The dimensions of the dynamic vibration absorber 11 used in the experiment were height H = 2 mm and outer diameter D = 12 rran.
であシ、この動吸振器１１を取９付けたヘッド組立構造
は、第３，４図に縮尺１／１で示したものである。The head assembly structure in which this dynamic vibration absorber 11 is attached is shown on a scale of 1/1 in FIGS. 3 and 4.
発明の効果
以上述べたように、本発明によれば、可動側のヘッドを
支持するヘッドアームに動吸振器が取シ付けられておｐ
、媒体表面劣化に伴って媒体とヘッド間に発生する振動
をこの動吸振器により吸振して除去することが可能であ
る。従って、安定したリード、ライトが実現できる。Effects of the Invention As described above, according to the present invention, a dynamic vibration absorber is attached to the head arm that supports the head on the movable side.
This dynamic vibration absorber can absorb and eliminate vibrations that occur between the medium and the head due to deterioration of the medium surface. Therefore, stable reading and writing can be achieved.
第１図は従来のヘッド組立構造を示す正面図、第２図は
同平面図、第６図乃至第５図は本発明に係るフロッピィ
ディスク装置のヘッド防振構造の実施例を示すもので、
第４図は本発明を適用したヘッド組立構造の正面図、第
４図は同平面図、第５図はダンピング効果の高い動吸振
器の正面断面図である。
図中、１，２はヘッド、６はヘッド支持板、４，６はジ
ンバル、５はへラドアーム、７は板はね、１１はダンピ
ング効果の高い動吸振器、１２はケース、１３はシリコ
ンオイル、１４は重シである。
特許出願人 富士通株式会社
代理人 弁理士玉蟲久五部（外）名）
第 １ 図
第２図FIG. 1 is a front view showing a conventional head assembly structure, FIG. 2 is a plan view thereof, and FIGS. 6 to 5 show an embodiment of a head vibration isolation structure for a floppy disk device according to the present invention.
FIG. 4 is a front view of a head assembly structure to which the present invention is applied, FIG. 4 is a plan view thereof, and FIG. 5 is a front sectional view of a dynamic vibration absorber having a high damping effect. In the figure, 1 and 2 are the head, 6 is the head support plate, 4 and 6 are the gimbals, 5 is the helad arm, 7 is the plate spring, 11 is the dynamic vibration absorber with high damping effect, 12 is the case, and 13 is silicone oil , 14 are heavy. Patent applicant Fujitsu Ltd. agent Patent attorney Gobe Tamamushi (external name) Figure 1 Figure 2
Claims (1)
支持板に板ばねを介して連結されたヘッドアームに設け
られた第２のヘッドとの間にディスク媒体を挾持して該
ディスク媒体に対する情報のリード、ライトを行うフロ
ッピィディスク装置において、前記へラドアームにダン
ピング効果の高い動吸振器を取υ付けたことを特徴とす
るフロッピィディスク装置のヘッド防振構造。A disk medium is sandwiched between a first head provided on a head support plate and a second head provided on a head arm connected to the head support plate via a leaf spring. A head vibration isolation structure for a floppy disk device that reads and writes information, characterized in that a dynamic vibration absorber with a high damping effect is attached to the helad arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5973983A JPS59185065A (en) | 1983-04-04 | 1983-04-04 | Head vibrationproof structure of floppy disc device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5973983A JPS59185065A (en) | 1983-04-04 | 1983-04-04 | Head vibrationproof structure of floppy disc device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59185065A true JPS59185065A (en) | 1984-10-20 |
| JPH054743B2 JPH054743B2 (en) | 1993-01-20 |
Family
ID=13121886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5973983A Granted JPS59185065A (en) | 1983-04-04 | 1983-04-04 | Head vibrationproof structure of floppy disc device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59185065A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56105358A (en) * | 1980-01-22 | 1981-08-21 | Mitsubishi Electric Corp | Magnetic head supporting mechanism |
| JPS5794962A (en) * | 1980-12-03 | 1982-06-12 | Hitachi Ltd | Magnetic disk storage device |
-
1983
- 1983-04-04 JP JP5973983A patent/JPS59185065A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56105358A (en) * | 1980-01-22 | 1981-08-21 | Mitsubishi Electric Corp | Magnetic head supporting mechanism |
| JPS5794962A (en) * | 1980-12-03 | 1982-06-12 | Hitachi Ltd | Magnetic disk storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH054743B2 (en) | 1993-01-20 |
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