JP2543161B2 - Head drum device of magnetic recording / reproducing apparatus - Google Patents
Head drum device of magnetic recording / reproducing apparatusInfo
- Publication number
- JP2543161B2 JP2543161B2 JP63291209A JP29120988A JP2543161B2 JP 2543161 B2 JP2543161 B2 JP 2543161B2 JP 63291209 A JP63291209 A JP 63291209A JP 29120988 A JP29120988 A JP 29120988A JP 2543161 B2 JP2543161 B2 JP 2543161B2
- Authority
- JP
- Japan
- Prior art keywords
- head
- magnetic recording
- reproducing apparatus
- drum device
- elastic member
- 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 - Fee Related
Links
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、VTR等のヘリカル走査記録再生方法の磁気
記録再生装置のヘッドドラム装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head drum device of a magnetic recording / reproducing apparatus for a helical scanning recording / reproducing method such as a VTR.
従来の技術 従来の磁気記録再生装置について説明する。2. Description of the Related Art A conventional magnetic recording / reproducing apparatus will be described.
第４図は、この従来の磁気記録再生装置のヘッドドラ
ム装置の上ドラムの断面図である。図中、１は上ドラ
ム、２はヘッドベース、３はヘッド、４は締結手段、５
は虫ネジよりなるヘッド高さ変換手段である。FIG. 4 is a sectional view of the upper drum of the head drum device of this conventional magnetic recording / reproducing apparatus. In the figure, 1 is an upper drum, 2 is a head base, 3 is a head, 4 is a fastening means, 5
Is a head height converting means composed of an insect screw.
第４図に示すように、ヘッド３を有するヘッドベース
２は締結手段４により上ドラム１に固定されている。As shown in FIG. 4, the head base 2 having the head 3 is fixed to the upper drum 1 by the fastening means 4.
以上のように構成されたヘッドドラム装置の動作につ
いて説明する。The operation of the head drum device configured as above will be described.
まずヘッド高さ変換手段５はヘッドベース２に当接し
ており、ヘッド高さ変換手段５の移動によりヘッドベー
ス２を変形させヘッド３の高さを調整するのである。First, the head height converting means 5 is in contact with the head base 2, and the head height converting means 5 is moved to deform the head base 2 to adjust the height of the head 3.
発明が解決しようとする課題 しかしながら上記の従来の構成ではヘッド高さ変換手
段５が直接ヘッドベース２に当接しておりヘッド高さ変
換手段５の移動量が直接ヘッドベース２の移動量となり
ヘッド３の移動量がさらに拡大され精密な調整が困難で
あるという問題点を有していた。However, in the above-mentioned conventional configuration, the head height converting means 5 is in direct contact with the head base 2, and the moving amount of the head height converting means 5 becomes the moving amount of the head base 2 directly. However, there is a problem in that the amount of movement is further increased and precise adjustment is difficult.
本発明は上記従来の問題点を解決するもので、ヘッド
の高さ調整を簡単に精密に行える磁気記録再生装置のヘ
ッドドラム装置を提供するものである。The present invention solves the above-mentioned conventional problems, and provides a head drum device of a magnetic recording / reproducing apparatus in which the height of the head can be adjusted easily and precisely.
課題を解決するための手段 この目的を達成するため本発明はヘッドドラム装置の
上ドラムにヘッド高さ調整手段を有し、ヘッド高さ調整
手段はヘッド高さ変換手段とヘッド高さ変換手段とヘッ
ドベースとの間に設けた弾性部材とを備えた構成を有し
ている。In order to achieve this object, the present invention has a head height adjusting means on an upper drum of a head drum device, and the head height adjusting means comprises a head height converting means and a head height converting means. The elastic member is provided between the head base and the elastic member.
作用 本発明は上記した構成により、ヘッド高さ変換手段の
移動量が弾性部材の変形により縮小されてヘッドベース
に伝達され微少な高さ調整が可能となる。Action According to the present invention, due to the above-described configuration, the movement amount of the head height converting means is reduced by the deformation of the elastic member and transmitted to the head base, thereby enabling a minute height adjustment.
実施例 本発明の一実施例を図面をもとに説明する。Embodiment An embodiment of the present invention will be described with reference to the drawings.
第１図は本発明第１の実施例を示す磁気記録再生装置
のヘッドドラム装置の上ドラムの断面図で第４図と同一
部には同一番号をつける。（以下同じ）第１図におい
て、上ドラム１にヘッド３を有するヘッドベース２が締
結手段４により固定され虫ネジよりなるヘッド高さ変換
手段５とヘッドベース２との間に弾性部材６が構成され
ている。FIG. 1 is a sectional view of an upper drum of a head drum device of a magnetic recording / reproducing apparatus showing a first embodiment of the present invention, and the same parts as those in FIG. (Same below) In FIG. 1, a head base 2 having a head 3 on an upper drum 1 is fixed by a fastening means 4, and an elastic member 6 is arranged between a head height converting means 5 composed of an insect screw and a head base 2. Has been done.
以上のように構成された磁気記録再生装置のヘッドド
ラム装置について以下にその動作について説明する。The operation of the head drum device of the magnetic recording / reproducing apparatus configured as described above will be described below.
虫ネジよりなるヘッド高さ変換手段５を移動させると
弾性部材６を移動させその移動によりヘッドベース２を
移動させようとするがヘッドベース２は締結手段４によ
り上ドラム１に固定されているため片持ばりの条件にな
って反力を弾性部材６に与える。その反力により弾性部
材が変形し、ヘッド高さ変換手段５の移動量が縮小して
ヘッドベース２を移動させる。これを計算式により説明
すると以下のようになる。When the head height converting means 5 composed of an insect screw is moved, the elastic member 6 is moved and the head base 2 is moved by the movement, but the head base 2 is fixed to the upper drum 1 by the fastening means 4. Under the condition of cantilever, a reaction force is applied to the elastic member 6. The elastic force is deformed by the reaction force, the movement amount of the head height converting means 5 is reduced, and the head base 2 is moved. This will be described below by a calculation formula.
dH＝Ke＊H/（Kb＋Ke） ここで、dH:ヘッドベース２の移動量 H :ヘッド高さ変換手段の移動量 Kb:ヘッドベースのバネ係数 Ke:弾性部材のバネ係数 である。dH = Ke * H / (Kb + Ke) where, dH: moving amount of head base 2 H: moving amount of head height converting means Kb: spring coefficient of head base Ke: spring coefficient of elastic member.
例えば、Ke＝Kbとすると、dH＝0.5Hになって従来の２
倍の精度で高さの設定ができる。この弾性部材６の材料
としてはアルミ材あるいはエンジニアリングプラスティ
ック等があり、前記計算式に基づいて任意に選べば良
い。For example, if Ke = Kb, dH = 0.5H
The height can be set with double precision. The material of the elastic member 6 may be an aluminum material, an engineering plastic, or the like, and may be arbitrarily selected based on the above calculation formula.
第２図は本発明の第２の実施例を示す磁気記録再生装
置のヘッドドラム装置の上ドラムの断面図で、７は弾性
部材である。FIG. 2 is a sectional view of an upper drum of a head drum device of a magnetic recording / reproducing apparatus showing a second embodiment of the present invention, and 7 is an elastic member.
第２の実施例における弾性部材７は、第１の実施例に
おける弾性部材６の代わりに一端の閉じた中空部材とし
形状的にそのバネ係数を低下させたものでその働きは第
１の実施例と同じである。The elastic member 7 in the second embodiment is a hollow member with one end closed instead of the elastic member 6 in the first embodiment, and its spring coefficient is reduced in terms of shape, and its function is the first embodiment. Is the same as.
第３図は本発明の第３の実施例を示す磁気記録再生装
置のヘッドドラム装置の上ドラムの断面図で、８は弾性
部材である。FIG. 3 is a sectional view of the upper drum of the head drum device of the magnetic recording / reproducing apparatus showing the third embodiment of the present invention, and 8 is an elastic member.
第３の実施例における弾性部材８は、第１の実施例に
おける弾性部材６の代わりに板バネ形状にして、形状的
にそのバネ係数を低下させたものでその働きは第１の実
施例と同じである。The elastic member 8 in the third embodiment has a leaf spring shape in place of the elastic member 6 in the first embodiment, and its spring coefficient is reduced geometrically, and its function is the same as that of the first embodiment. Is the same.
発明の効果 以上のように本発明は、ヘッド高さ調整手段をヘッド
高さ変換手段とヘッドベースとの間に弾性部材を設ける
構成にすることにより、ヘッド高さ変換手段の移動量よ
りヘッドベースの移動量を小さくすることができ、簡便
に高精密にさらに短時間にヘッド高さを合わせることが
でき、その実用的効果は大きい。EFFECTS OF THE INVENTION As described above, according to the present invention, the head height adjusting means is configured such that the elastic member is provided between the head height converting means and the head base. The amount of movement of the head can be reduced, and the head height can be easily adjusted with high precision in a shorter time, and its practical effect is great.
第１図は本発明の第１の実施例における磁気記録再生装
置のヘッドドラム装置の上ドラムの断面図、第２図，第
３図は本発明の第2,第３の実施例における磁気記録再生
装置のヘッドドラム装置の上ドラムの断面図、第４図は
従来の磁気記録再生装置のヘッドドラム装置の上ドラム
の断面図である。 １……上ドラム、２……ヘッドベース、３……ヘッド、
４……締結手段、５……ヘッド高さ変換手段、6,7,8…
…弾性部材。FIG. 1 is a sectional view of an upper drum of a head drum device of a magnetic recording / reproducing apparatus according to a first embodiment of the present invention, and FIGS. 2 and 3 are magnetic recording according to second and third embodiments of the present invention. FIG. 4 is a sectional view of the upper drum of the head drum device of the reproducing apparatus, and FIG. 4 is a sectional view of the upper drum of the head drum device of the conventional magnetic recording / reproducing apparatus. 1 ... Upper drum, 2 ... Head base, 3 ... Head,
4 ... Fastening means, 5 ... Head height converting means, 6, 7, 8 ...
... an elastic member.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 奥田 誠 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 実開 昭59−130231（ＪＰ，Ｕ) 実開 昭62−147120（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Makoto Okuda 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References: Development 59-130231 (JP, U) Development 62- 147120 (JP, U)
Claims (1)
と、前記上ドラム上に前記ヘッドベースを締結する締結
手段及び前記ヘッドの高さを調整するヘッド高さ調整手
段とを有し、前記ヘッド高さ調整手段は前記上ドラムに
設けたヘッド高さ変換手段及び前記ヘッド高さ変換手段
と前記ヘッドベースとの間に設けた弾性部材とより構成
したことを特徴とする磁気記録再生装置のヘッドドラム
装置。1. A head having an upper drum, a head base having a head, a fastening means for fastening the head base on the upper drum, and a head height adjusting means for adjusting the height of the head. The height adjusting means is composed of a head height converting means provided on the upper drum and an elastic member provided between the head height converting means and the head base. Drum device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63291209A JP2543161B2 (en) | 1988-11-17 | 1988-11-17 | Head drum device of magnetic recording / reproducing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63291209A JP2543161B2 (en) | 1988-11-17 | 1988-11-17 | Head drum device of magnetic recording / reproducing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02137111A JPH02137111A (en) | 1990-05-25 |
| JP2543161B2 true JP2543161B2 (en) | 1996-10-16 |
Family
ID=17765876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63291209A Expired - Fee Related JP2543161B2 (en) | 1988-11-17 | 1988-11-17 | Head drum device of magnetic recording / reproducing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2543161B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69519153T2 (en) * | 1994-12-27 | 2001-05-10 | Mitsubishi Chem Corp | Photosensitive resin composition and method of making photoresist patterns using the same |
| KR0119723Y1 (en) * | 1995-03-29 | 1998-08-01 | 배순훈 | Structure for fitting audio/control head of tape recorder |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59130231U (en) * | 1983-02-15 | 1984-09-01 | 三菱電機株式会社 | VTR head |
| JPS62147120U (en) * | 1986-03-08 | 1987-09-17 |
-
1988
- 1988-11-17 JP JP63291209A patent/JP2543161B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02137111A (en) | 1990-05-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |