JPS61162817A - Adjusting mechanism for azimuth of recording and playback head - Google Patents
Adjusting mechanism for azimuth of recording and playback headInfo
- Publication number
- JPS61162817A JPS61162817A JP268185A JP268185A JPS61162817A JP S61162817 A JPS61162817 A JP S61162817A JP 268185 A JP268185 A JP 268185A JP 268185 A JP268185 A JP 268185A JP S61162817 A JPS61162817 A JP S61162817A
- Authority
- JP
- Japan
- Prior art keywords
- head
- center
- azimuth
- holder
- head holder
- 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.)
- Pending
Links
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
- G11B5/56—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 support for the purpose of adjusting the position of the head relative to the record carrier, e.g. manual adjustment for azimuth correction or track centering
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
Description
【発明の詳細な説明】
【産業上の利用分野〕
この発明は、たとえばオートリバースカセットプレーヤ
における磁気録再ヘッドのアジマス調整機構に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an azimuth adjustment mechanism for a magnetic recording/reproducing head in, for example, an auto-reverse cassette player.
第２図は、従来のカセットオートリバースヘッドのアジ
マス画歪機構（以下、ダブルアジャスト機構という）を
示しており、図において、（１）はヘッドベース、（２
）はヘッド、（３）はヘッドで２）に固定されヘッド（
２）を支持するヘッド台板、（４）は、ヘッド（２）に
固定され、ヘッド（２）に圧接されるテープをガイドす
るテープガイド、（５）はヘッド固定用ねじ、（６ａ）
、（６ｂ）は、走行方向に対応したアジマス調整用ねじ
、（７）は、ねじ（６ａ）、（６ｂ）の緩みを防止する
ねじ回り止めばね、（８）は、ヘッド（２）をヘッドベ
ース（１）の方向へ押し付ける付勢ばね、■は、走行方
向切換時、ヘッド台板（３）の片側を上下に移動させア
ジマス調整を行うためのアジマス調整ボス、＋ｉａ＋は
、アジマス調整ボスＤと連動して動く摩擦板、（１４１
は、ヘッド固定ピン、（機は、アジマス調整ボス１１２
１の回転軸として、また、スラスト方向のガイドとして
、さらに、ヘッド台板（３）のガイドとして働くガイド
ピンである。Figure 2 shows the azimuth image distortion mechanism (hereinafter referred to as the double adjustment mechanism) of a conventional cassette auto-reverse head.
) is the head, (3) is the head and is fixed to 2) and the head (
(2) is a head base plate that supports, (4) is a tape guide that is fixed to the head (2) and guides the tape that is pressed against the head (2), (5) is a head fixing screw, (6a)
, (6b) is an azimuth adjustment screw corresponding to the running direction, (7) is a screw rotation stopper spring that prevents the screws (6a) and (6b) from loosening, and (8) is a screw for adjusting the head (2). A biasing spring that presses in the direction of the base (1), ■ is an azimuth adjustment boss that moves one side of the head base plate (3) up and down to adjust the azimuth when switching the running direction, +ia+ is an azimuth adjustment boss D Friction plate that moves in conjunction with (141
is the head fixing pin (the machine is the azimuth adjustment boss 112
This is a guide pin that functions as a rotation axis for the head base plate (3), as a guide in the thrust direction, and as a guide for the head base plate (3).
従来のダブルアジャスト機構は、上記のように構成され
ていて、たとえは、フォワード側走行時、アジマス―整
ねじ（６ａ）でアジマス調整ボス＠のヘッドベース（１
）からの篩さを調整し、ヘッド固定ピン（１４との簡さ
関係からヘッド（２）を適正な角度填ける。また、走行
方向切換時、アジマス調整ボスＵを回転させ、リバース
側走行時、アジマス調擾ねじ（６ｂ）で、アジマス調整
ボスじのヘッドベース（１）からの筒さを調姫し、ヘッ
ド固定ピン＋１４）との縞さ関係からヘッド（２）を適
正角度傾ける（第３図（ｂ）、ｉ３図（ｅ）参照）。な
お、フォワード側が（６ｂ）、リバース側が（６ａ）と
いう関係となることもある。The conventional double adjustment mechanism is configured as described above. For example, when traveling on the forward side, the azimuth adjustment screw (6a) is used to adjust the head base (1) of the azimuth adjustment boss @.
) and fit the head (2) at an appropriate angle due to its simplicity with the head fixing pin (14).Also, when switching the running direction, rotate the azimuth adjustment boss U, and when running on the reverse side , use the azimuth adjustment screw (6b) to adjust the cylindrical shape of the azimuth adjustment boss from the head base (1), and tilt the head (2) at an appropriate angle (the first (See Figure 3(b), i3(e)). Note that the relationship may be such that the forward side is (6b) and the reverse side is (6a).
以上のような動作で、各々の走行方向に適したヘッドア
ジマス角を得る構造となっている。Through the above operations, the structure is such that a head azimuth angle suitable for each running direction is obtained.
上記のような従来のダブルアジャスト機構では、第２図
、第３図中）および第３図（Ｃ）に示すアジマスｖＩ４
ｙ時の回動中心−を支点とし、ヘッド台板（３）のガイ
ドピン四側を作用点□□□として、アジマス請輩ボス■
の簡さを変化させることで、ヘッド（２）自体の績角を
変化させる構造となっているが、第３図（ａ）に示した
ように、テープは走行方向によって、水平基準に対する
躍きは変化するか、ヘッドの垂直基準とテープの中心線
の叉点の高さ位置はほとんど変化しない。したがって、
従来のダブルアジャスト機構は、たとえは、第３図中）
のように、作用点（至）が水平基準における作用点より
上がり、ヘッド（２）がθｌ傾くと、ヘッド中心α印は
ｓ １１１ｔｄｎθ１、作用点側テープガイド（４）は
Ａｚｇｉｎ０１程度、それぞれ上へ変位する。また逆に
、作用点（２）が水平基準における作用点より下がり、
上記ヘッド（２）がθ２傾くと、上記ヘッド中心１６１
は、１ｌｔ−０２、作用点側テープガイド（４）はｌ！
―θ鵞桶度、それぞれ下へ変位する。したがって、従来
のダブルアジャスト機構では、テープ走行方向の違いに
より、傾きは曾致させるが、上記ヘッド中心（１６１と
テープのセンタは合致しないという結果を生じ、テープ
走行間での角度走が犬きくなると、テープ走行が不安定
となシ、クロストーク等の不具合が生じるという問題点
がある。In the conventional double adjustment mechanism as described above, the azimuth vI4 shown in Figs. 2 and 3) and Fig. 3(C) is
With the center of rotation at y as the fulcrum, and the fourth side of the guide pin on the head base plate (3) as the point of action □□□, rotate the azimuth contract boss ■
The head (2) has a structure in which the angle of movement of the head (2) itself is changed by changing the ease of movement of the tape. changes, or the height position of the intersection of the vertical reference of the head and the center line of the tape hardly changes. therefore,
For example, the conventional double adjustment mechanism is shown in Fig. 3)
As shown in the figure, when the point of application (to) is higher than the point of application in the horizontal reference and the head (2) is tilted by θ1, the head center mark α is s111tdnθ1, and the tape guide (4) on the side of the application point is upward by about Azgin01, respectively. Displace. Conversely, the point of action (2) is lower than the point of action on the horizontal standard,
When the head (2) is tilted by θ2, the head center 161
is 1lt-02, and the tape guide (4) on the application point side is l!
- θ oke degrees, respectively, are displaced downward. Therefore, in the conventional double adjustment mechanism, the inclination is equalized due to the difference in the tape running direction, but the result is that the head center (161) does not match the center of the tape, and the angular run between tape runs becomes narrower. This causes problems such as unstable tape running and crosstalk.
この発明は、このような問題点ｋｍ決するためになされ
たもので、アジマス調整ボスに、ヘッド中心（１６１の
簡さが変化しないようにしたアジマス調ｇ機梼を提供す
ることを目的とする。This invention was made to solve such problems, and an object of the present invention is to provide an azimuth adjustment boss in which the head center (161) does not change in simplicity.
この発明に係るアジマス調整機構は、ヘッド（２）を保
持するホルダ（社）と、このホルダＩをアジマス調螢方
向に回動可能〈支持するベース（１）と、上記ヘッドホ
ルダαＤの回動中心−から離れて位置し、このヘッドホ
ルダＩに設けられてヘッドホルダＩの回動方向へ進退自
任な調整部材（６ａ）、（６ｂ）と、上記調整部材（６
ａ）、（６ｂ）の当接によシ、ヘッドホルダ（１１）の
１頃きを制限するプレート（９）とを備え、上記ヘッド
ホルダｌの回動中心■）とヘッド中心＜１６１とが合致
する榊属をとっている。The azimuth adjustment mechanism according to the present invention includes a holder (company) that holds a head (2), a base (1) that supports the holder I, which is rotatable in the azimuth adjustment direction, and a rotation of the head holder αD. Adjustment members (6a) and (6b) located away from the center and provided on this head holder I and capable of moving forward and backward in the rotating direction of the head holder I;
a) and (6b) are provided with a plate (9) that limits the first rotation of the head holder (11), and the center of rotation of the head holder (1) and the head center <161 are provided. The matching Sakaki genus is taken.
上記構成により、ヘッドホルダ（１１１の回動中心（ハ
）がヘッド（２）の中心（１６１と一致し、ヘッド中心
（１Ｇ＋位置に変化を与えることなく、ヘッドホルダＩ
は回転して、アジマス、、４蟹が行なえるため、ヘッド
中心ｕ６１とテープのセンタとの不一致を解消し、かつ
、テープガイド（４）の悪影響を除去することができる
。With the above configuration, the rotation center (C) of the head holder (111) coincides with the center (161) of the head (2), and the head holder I
Since the head can be rotated to perform azimuth, . . . 4 crabs, it is possible to eliminate the mismatch between the head center U61 and the center of the tape, and also to eliminate the adverse effects of the tape guide (4).
以下、この発明に係るアジマスａ１４至機構の一実施例
を図に基づいて説明する。Hereinafter, one embodiment of the azimuth a14 mechanism according to the present invention will be described based on the drawings.
第１図はこの釦用の一実施例を示すもので、（ａ）は、
ヘッド（２）周辺を示す一部切欠平一図であり、Φ）は
、ヘッド（２）周辺を示す一部を切欠した分解正面図で
ある。図において、（１）はへラドベースで、直角に９
９曲げして立設された立上がり部αηには孔叩が穿設さ
れ、この立上がり部面とヘッドホルダＩとは、支軸側で
共ガシメされている。Figure 1 shows an example of this button, and (a) shows
FIG. 2 is a partially cutaway plan view showing the periphery of the head (2), and Φ) is an exploded front view with a portion cut away showing the periphery of the head (2). In the figure, (1) is a helad base, with a right angle of 9
A hole is drilled in the rising portion αη which is bent by 9 degrees, and the surface of this rising portion and the head holder I are crimped together on the support shaft side.
上記ヘッドホルダ（１１１は、上記支軸（１０１によυ
軸盾された支持板α（ト）の両端に、ヘッド台板（３）
およびアジマス調整部材としての調整ねじ（６ａ）、（
６ｂ）の取付は部［株］、□□□を突設したもので、ヘ
ッドホルダ１１１１の回動中心□□□はヘッド中心ｔ１
０と合致している。上記取付は部−０■には、ヘッドホ
ルダ（１１１の内側方向に向かう上板（２０ａ）、（２
０ａ）およびヘッドホルダＩの外側方向に向かう下板（
２０ｂ）、（２０ｂ）が設けられており、上板（２０ａ
）、（２０ａ）には、ヘッド（２）が、固定用ねじｆ５
） 、 （５１でヘッド台板（３）をねじ止めすること
により固層され、一方、下板（２０ｂ）、（２０ｂ）に
はアジマスｈｘねじ（６ａ）、（６ｂ）が設けられてい
る。The head holder (111 is υ
A head base plate (3) is attached to both ends of the shaft-shielded support plate α (g).
and an adjustment screw (6a) as an azimuth adjustment member, (
6b) is installed by protruding □□□, and the rotation center □□□ of the head holder 1111 is the head center t1.
It matches 0. For the above installation, the upper plate (20a) facing the inside of the head holder (111), (2
0a) and the lower plate (
20b), (20b) are provided, and the upper plate (20a
), (20a), the head (2) is fixed with the fixing screw f5.
), (51 is fixed by screwing the head base plate (3), while the lower plates (20b), (20b) are provided with azimuth hx screws (6a), (6b).
上記アジマス調量ねじ（６ａ）、（６ｂ）は走行方向切
挟時、スライドプレー） ＋９） ’Ｃ当たシ、ヘッド
ホルダ（１１Ｊの傾角、すなわちヘッド（２）の傾角を
ａｌ１４Ｍする。上記スライドプレート（９）は図の左
石方回にスライドする支持体＋２１１の立上がり Ｗ６
（２１ａ）、（２１ａ）の上端にプレート部―、■を
設けたもので、したがって、両プレート部−１■は連動
している。また、ヘッドホルダαＤは、付勢はね（８）
によシ、石回シまたは左回シのバイアスを与えられてい
る。たとえば、８ｇ１図〜）のように、スライドプレー
ト（９）が、図で圧の位置にある時、ヘッドホルダ（１
１１は図で左回りのバイアスを得て、左のアジマス耐、
４量ねじ（６ａ）で、アジマス調量をする０
上記拠１１１例では、プレート（９）はスライドする構
ａｔとっているが、細動する傅奴にしてもよい。The above azimuth adjusting screws (6a) and (6b) are used when cutting in the running direction, slide play) Plate (9) is the support body that slides to the left stone direction in the figure + 211 rise W6
(21a) and (21a) are provided with plate portions 1 and 2 at their upper ends, and therefore both plate portions 1 and 2 are interlocked. In addition, the head holder αD has a biasing spring (8)
It is given a bias of yoshi, stone times, or left times. For example, when the slide plate (9) is in the pressure position as shown in the figure, the head holder (1
11 obtains the counterclockwise bias in the figure, and the left azimuth resistance,
Azimuth adjustment is carried out using the four-volume screw (6a). In the above example 111, the plate (9) is configured to slide, but it may also be a fibrillating screw.
以上のように、この発明によれは、アジマス調量時の回
動中心、すなわちヘッドホルダの回動中心はヘッド中心
と一致し、アジマス＃蛍時におけるヘッド中心の上下動
を少なくすることができるので、ヘッド中心とテープの
センタとのずれが少なくなり、テープ走行を女定化させ
ることができる。As described above, according to the present invention, the center of rotation during azimuth metering, that is, the center of rotation of the head holder, coincides with the center of the head, making it possible to reduce vertical movement of the center of the head when adjusting azimuth. Therefore, the deviation between the center of the head and the center of the tape is reduced, and tape running can be made uniform.
ｍ１図はこの発明の一実施例を示すものであり、（ａ）
は要部平面図、の）はヘッドの城付は過程を示す正面図
、第２図は従来例を示すものであり、（ａ）は要部平面
図、［有］）は要部正面図、第３図は、第２図のアジマ
ス１ｍ廉時の状態を示すものであり、（ａ）はテープと
ヘッドの位置関係を示す要部正圓図、φ）はヘッドが左
上がりになった状態を示す要部１１図、（Ｃ）はヘッド
が圧下がりになった状態を示す情部正圓図である。
（１）・・・ヘッドベース、（２ト・・ヘッド、（６ａ
）、（６ｂ）・・・アジマス調光部材、（９）・・・プ
レー）、（１１）・・・ヘッドホルダ、 （１６）・・
・ヘッド中心、―・・・ヘッドホルダの回動中心。
なお、各図中、同一符号は、同一または相当部分を示す
。Figure m1 shows one embodiment of this invention, (a)
(a) is a plan view of the main part, (a) is a front view showing the process of mounting the head, Fig. 2 is a conventional example, (a) is a plan view of the main part, and (a) is a front view of the main part. , Figure 3 shows the state of Figure 2 when the azimuth is 1m lower, (a) is a true circle view of the main part showing the positional relationship between the tape and the head, and φ) is when the head is tilted upward to the left. Figure 11 shows the main part, and (C) is a full-length diagram showing the head in a state where the pressure is lowered. (1)...Head base, (2t...Head, (6a
), (6b)...Azimuth light control member, (9)...Play), (11)...Head holder, (16)...
・Head center: Center of rotation of the head holder. Note that in each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
ホルダをアジマス調整方向に回動可能に支持するベース
と、上記ヘッドホルダの回動中心から離れて位置し、こ
のヘッドホルダに設けられてヘッドホルダの回動方向へ
進退自在な調整部材と、上記調整部材の当接により、ヘ
ッドホルダの傾きを制限するプレートとを備え、上記ヘ
ッドホルダの回動中心とヘッド中心が合致していること
を特徴とする録再ヘッドのアジマス調整機構。(1) a head holder that holds a head; a base that supports the head holder rotatably in the azimuth adjustment direction; The device includes an adjustment member that can move forward and backward in the direction of rotation of the holder, and a plate that limits the inclination of the head holder by abutting the adjustment member, and makes sure that the center of rotation of the head holder and the center of the head match. Features a recording/playback head azimuth adjustment mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP268185A JPS61162817A (en) | 1985-01-10 | 1985-01-10 | Adjusting mechanism for azimuth of recording and playback head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP268185A JPS61162817A (en) | 1985-01-10 | 1985-01-10 | Adjusting mechanism for azimuth of recording and playback head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61162817A true JPS61162817A (en) | 1986-07-23 |
Family
ID=11536038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP268185A Pending JPS61162817A (en) | 1985-01-10 | 1985-01-10 | Adjusting mechanism for azimuth of recording and playback head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61162817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809108A (en) * | 1986-01-10 | 1989-02-28 | Tanashin Denki Co., Ltd. | Tape running direction changeover mechanism with automatic tape head azimuth alignment |
-
1985
- 1985-01-10 JP JP268185A patent/JPS61162817A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809108A (en) * | 1986-01-10 | 1989-02-28 | Tanashin Denki Co., Ltd. | Tape running direction changeover mechanism with automatic tape head azimuth alignment |
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