JP2529281B2 - Tape head magnetic head device - Google Patents
Tape head magnetic head deviceInfo
- Publication number
- JP2529281B2 JP2529281B2 JP62184030A JP18403087A JP2529281B2 JP 2529281 B2 JP2529281 B2 JP 2529281B2 JP 62184030 A JP62184030 A JP 62184030A JP 18403087 A JP18403087 A JP 18403087A JP 2529281 B2 JP2529281 B2 JP 2529281B2
- Authority
- JP
- Japan
- Prior art keywords
- azimuth
- adjusting screw
- head
- magnetic head
- azimuth adjusting
- 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
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、磁気テープのトラック位置切換えを磁気ヘ
ッドの回転で行なう往復録音再生可能なテープレコーダ
の磁気ヘッド装置に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head device of a tape recorder capable of reciprocal recording / reproduction in which track positions of a magnetic tape are switched by rotating a magnetic head.
従来の技術 最近、磁気ヘッドを回転させて磁気テープのトラック
位置の切換えを行なう往復録音再生可能なテープレコー
ダが提案され、特にカセット式テープレコーダにおいて
は磁気テープ走行の負荷軽減によるワウ・フラッタの向
上、及び機械的精度を向上させる点に着眼され、主流と
なりつつある。2. Description of the Related Art Recently, a tape recorder capable of reciprocal recording and reproduction by rotating a magnetic head to switch the track position of a magnetic tape has been proposed. In particular, in a cassette type tape recorder, wow and flutter are improved by reducing the load of magnetic tape running. , And it is becoming the mainstream due to its focus on improving mechanical accuracy.
従来、この磁気ヘッド装置としては、回転自在に構成
され、磁気ヘッドを担持した保持部材の回転腕を所定の
回転角度位置で停止させるアジマス調整ビスを有してお
り、そのアジマス調整ビスはそのバックラッシ分を弾性
体（例：コイルばね）でビス軸方向に付勢し、調整後、
アジマス調整ビスがゆるまないように固定剤（例：ネジ
ロック）で固着する方法を用いたものが知られている。Conventionally, this magnetic head device has an azimuth adjusting screw that is configured to be rotatable and that stops a rotating arm of a holding member carrying a magnetic head at a predetermined rotation angle position. The azimuth adjusting screw has a backlash. Component is urged in the screw axial direction with an elastic body (eg coil spring), and after adjustment,
It is known that the azimuth adjusting screw is fixed with a fixing agent (eg, screw lock) so as not to loosen.
以下図面を参照しながら従来のテープレコーダの磁気
ヘッド装置について説明する。A conventional magnetic head device for a tape recorder will be described below with reference to the drawings.
第４図，第５図はそれぞれ従来のテープレコーダの磁
気ヘッド装置の正面図とアジマス調整部を示す部分断面
図である。第４図，第５図において、１はメカニズムに
固定されたヘッドベースで、２はアジマスプレートであ
る。上記アジマスプレート２はヘッドベース１に固定さ
れ、ヘッド回転支軸（図示せず）を有し、アジマス調整
用メネジ部2aが構成されている。上記回転支軸中心に回
転自在に構成された磁気ヘッド保持部材３は磁気ヘッド
４を収納固定し、外周面に回転腕3aを有している。５は
アジマス調整ビスであり、先端が上記回転腕3aに対応す
る位置になるべくアジマスプレート２のメネジ部2aにね
じ込まれ、コイルばね６により頭部を矢印Ａ方向に付勢
されている。このアジマス調整ビス５を調整することに
より、磁気ヘッド保持部材３を経由し磁気ヘッド４のア
ジマス角度を調整した後、矢印Ｂ方向に固定剤を注入
し、固着する構成となっている。FIG. 4 and FIG. 5 are a front view of a magnetic head device of a conventional tape recorder and a partial sectional view showing an azimuth adjusting portion, respectively. In FIGS. 4 and 5, 1 is a head base fixed to the mechanism, and 2 is an azimuth plate. The azimuth plate 2 is fixed to the head base 1, has a head rotation support shaft (not shown), and has an azimuth adjusting female screw portion 2a. The magnetic head holding member 3, which is configured to be rotatable around the above-mentioned rotation spindle, accommodates and fixes the magnetic head 4, and has a rotating arm 3a on the outer peripheral surface. Reference numeral 5 denotes an azimuth adjusting screw, which is screwed into the female screw portion 2a of the azimuth plate 2 so that its tip end is located at a position corresponding to the rotary arm 3a, and its head is urged by the coil spring 6 in the direction of arrow A. By adjusting the azimuth adjusting screw 5, the azimuth angle of the magnetic head 4 is adjusted via the magnetic head holding member 3, and then a fixing agent is injected in the direction of arrow B to fix the azimuth.
発明が解決しようとする問題点 しかしながら、上記の従来の方法では、矢印Ｂ方向か
らアジマス調整後のアジマス調整ビス５を固着する為の
固定剤を注入する際、コイルばね６のわずかな隙間Ｈか
ら固定剤を注入するために固定剤がネジ部2aに流入しに
くく、ビスのゆるみ防止が充分でなく、磁気ヘッド回転
時の衝撃力によりアジマス調整ビスがゆるむことによっ
て生ずる「ヘッドアジマスずれ」という問題点を有して
いた。さらにコイルばね６の隙間Ｈから固定剤を注入し
ようとした時は、隙間Ｈをかなり広げなければならず、
コイルばねの取付長Ｌが大きくなり、メカニズム全体の
厚みも厚くなってしまい、メカニズムさらにはセットの
小型化に課題となっていた。However, according to the above-mentioned conventional method, when injecting the fixing agent for fixing the azimuth adjusting screw 5 after the azimuth adjustment from the direction of the arrow B, from the slight gap H of the coil spring 6 The problem of "head azimuth shift" caused by loosening of the azimuth adjusting screw due to impact force when the magnetic head rotates because the fixative does not easily flow into the screw part 2a to inject the fixative and the screw is not sufficiently prevented from loosening. Had a point. Furthermore, when attempting to inject the fixative through the gap H of the coil spring 6, the gap H must be widened considerably,
The attachment length L of the coil spring is increased, and the thickness of the entire mechanism is increased, which has been a problem for downsizing the mechanism and the set.
本発明は、簡単な構成により、アジマス調整ビスを固
着する固定剤を最も固着効率のよい部分へ注入可能と
し、ヘッド回転時のアジマス調整ビスのゆるみを防止す
るとともに、ヘッド構成を薄くすることのできるテープ
レコーダの磁気ヘッド装置を提供するものである。According to the present invention, the fixing agent for fixing the azimuth adjusting screw can be injected into the portion having the highest fixing efficiency with a simple structure, the azimuth adjusting screw is prevented from loosening when the head is rotated, and the head structure is made thin. A magnetic head device for a tape recorder that can be used.
問題点を解決するための手段 本発明のテープレコーダの磁気ヘッド装置は、ヘッド
ベースに固定されたアジマスプレートに回転自在に構成
され、磁気ヘッドを担持した保持部材と、この保持部材
の回転腕と当接し、上記磁気ヘッドの回転角度を調整す
るように上記アジマスプレートに締め込まれたアジマス
調整ビスと、このアジマス調整ビスを締め込むアジマス
プレートに対向して上記ヘッドベースに構成され、上記
アジマス調整ビスの軸と直交する少くとも一方向に開口
部を有する座と、この座と上記アジマス調整ビスの頭部
との間に構成され、上記アジマス調整ビスを軸方向に付
勢するコイルばねとを備えたものである。Means for Solving the Problems A magnetic head device of a tape recorder according to the present invention is configured to be rotatable on an azimuth plate fixed to a head base, a holding member carrying a magnetic head, and a rotating arm of the holding member. The azimuth adjusting screw which is abutted and is tightened in the azimuth plate so as to adjust the rotation angle of the magnetic head, and the head base which faces the azimuth plate in which the azimuth adjusting screw is tightened, A seat having an opening in at least one direction orthogonal to the axis of the screw, and a coil spring configured between the seat and the head of the azimuth adjusting screw to urge the azimuth adjusting screw in the axial direction. Be prepared.
作 用 本発明は上記した構成によって、コイルばねを座に当
接することによりアジマスプレートから軸方向に上記座
に設けた開口部による隙間を構成し、この隙間から固定
剤がアジマスプレートのネジ部に直接注入できる。この
ため、アジマス調整ビスの固着を確実にし、磁気ヘッド
回転によるアジマス調整ビスのゆるみを防止し、またコ
イルばね取付長を短くできることによりヘッド構成の薄
型化が実現できるものである。Operation According to the present invention, the coil spring is brought into contact with the seat to form a gap by the opening provided in the seat in the axial direction from the azimuth plate, and the fixative is applied to the screw portion of the azimuth plate from the gap. Can be injected directly. Therefore, the azimuth adjusting screw is securely fixed, the azimuth adjusting screw is prevented from loosening due to the rotation of the magnetic head, and the coil spring mounting length can be shortened, so that the head structure can be made thin.
実施例 以下、本発明の実施例を図面に基づいて説明する。第
１図〜第３図はそれぞれ本発明の一実施例を示す正面
図、アジマス調整部を示す部分断面図、アジマス調整部
を示す斜視図である。Embodiment An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 are a front view showing one embodiment of the present invention, a partial sectional view showing an azimuth adjusting section, and a perspective view showing the azimuth adjusting section, respectively.
第１図〜第３図において第４図，第５図に同一符号は
同様の構成部品であり、第４図，第５図と異なるところ
はメカニズムに固定されたヘッドベース11にコイルばね
６とアジマスプレート２との間に位置する座11aを有し
ていることである。この構成ではアジマス調整ビス５に
て磁気ヘッド４のアジマス角度を調整した後、矢印Ｃ又
は矢印Ｄ方向から固定剤を座11aにより生ずるコイルば
ね６とアジマスプレート２との隙間Ｉに注入し、アジマ
ス調整ビス５を固着することができる。In FIGS. 1 to 3, the same reference numerals in FIGS. 4 and 5 are the same components. The difference from FIGS. 4 and 5 is that the coil spring 6 is attached to the head base 11 fixed to the mechanism. The seat 11a is located between the azimuth plate 2 and the azimuth plate 2. In this configuration, after adjusting the azimuth angle of the magnetic head 4 with the azimuth adjusting screw 5, the fixing agent is injected into the gap I between the coil spring 6 and the azimuth plate 2 generated by the seat 11a from the direction of the arrow C or the arrow D, and the azimuth is adjusted. The adjustment screw 5 can be fixed.
以上のように本実施例によれば、アジマス調整ビス５
を軸方向に付勢するコイルばね６を座11aによりアジマ
スプレート２から隙間を設けて構成することにより、ヘ
ッドアジマス調整後のアジマス調整ビスを固着する固定
剤を上記隙間に注入することができ、アジマスプレート
のメネジ部にてビスを確実に固着でき、ヘッド回転時の
アジマス調整ビスのゆるみを防止できる。さらに固定剤
をコイルばねの隙間Ｈ′から注入する必要がない為に
Ｈ′を小さくでき、従ってコイルばね取付長が短くてす
み、ヘッド構成の薄型化が実現できるものである。As described above, according to this embodiment, the azimuth adjusting screw 5
By forming the coil spring 6 for axially urging the azimuth plate with a gap from the azimuth plate 2 by the seat 11a, a fixing agent for fixing the azimuth adjusting screw after head azimuth adjustment can be injected into the gap. Screws can be securely fixed on the female thread of the azimuth plate, and the azimuth adjustment screw can be prevented from loosening when the head rotates. Further, since it is not necessary to inject the fixing agent from the gap H'of the coil spring, H'can be made small, and therefore the coil spring mounting length can be shortened, and the head structure can be made thin.
発明の効果 以上のように本発明は、アジマス調整ビスを締め込む
アジマスプレートに対向してヘッドベースに、アジマス
調整ビスの軸方向に直交する少くとも一方向に開口部を
有する座を設けたので、この座と上記アジマス調整ビス
の頭部との間に構成され、アジマス調整ビスを軸方向に
付勢するコイルばねとアジマスプレートとの間に上記座
に設けた開口による隙間を構成することができる。もっ
てヘッドアジマス調整後のアジマス調整ビスを固着する
為の固定剤を上記座によりアジマスプレートとコイルば
ねとの間に構成された隙間から注入可能とすることがで
き、ビスを確実に螺合、固着し、ヘッド回転時のアジマ
ス調整ビスのゆるみを防止することができる。さらにコ
イルばねの取付長を短くすることができ、ヘッド構成を
薄型化可能でメカニズム・セットの小型化を図ることが
できるという優れたテープレコーダの磁気ヘッド装置を
実現できるものである。As described above, according to the present invention, the seat having the opening in at least one direction orthogonal to the axial direction of the azimuth adjusting screw is provided on the head base so as to face the azimuth plate for tightening the azimuth adjusting screw. The gap formed by the opening provided in the seat may be formed between the azimuth plate and the coil spring that is formed between this seat and the head of the azimuth adjustment screw and axially biases the azimuth adjustment screw. it can. Therefore, the fixing agent for fixing the azimuth adjustment screw after adjusting the head azimuth can be injected through the gap formed between the azimuth plate and the coil spring by the above seat, and the screw is securely screwed and fixed. However, it is possible to prevent the azimuth adjusting screw from loosening when the head rotates. Further, it is possible to realize an excellent magnetic head device for a tape recorder in which the mounting length of the coil spring can be shortened, the head structure can be made thin, and the mechanism set can be miniaturized.
【図面の簡単な説明】 第１図は本発明の磁気ヘッド装置の一実施例を示す全体
の正面図、第２図は第１図中のアジマス調整部を示す部
分断面図、第３図は第１図中の主要部の分解斜視図、第
４図は従来の磁気ヘッド装置の正面図、第５図は第４図
中のアジマス調整部を示す部分断面図である。 ２……アジマスプレート、５……アジマス調整ビス、６
……コイルばね、11……ヘッドベース、11a……座。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall front view showing an embodiment of a magnetic head device of the present invention, FIG. 2 is a partial sectional view showing an azimuth adjusting portion in FIG. 1, and FIG. 1 is an exploded perspective view of a main part in FIG. 1, FIG. 4 is a front view of a conventional magnetic head device, and FIG. 5 is a partial sectional view showing an azimuth adjusting part in FIG. 2 ... Azimuth plate, 5 ... Azimuth adjusting screw, 6
...... Coil spring, 11 ...... Head base, 11a ...... Seat.
Claims (1)
トに回転自在に構成され磁気ヘッドを担持した保持部材
と、この保持部材の回転腕と当接し磁気ヘッドの回転角
度を調整するように上記アジマスプレートに締め込まれ
たアジマス調整ビスと、このアジマス調整ビスを締め込
んだアジマスプレートに対向して上記ヘッドベースに構
成され、上記アジマス調整ビスの軸と直交する少くとも
一方向に開口部を有する座と、この座と上記アジマス調
整ビスの頭部との間に構成され、上記アジマス調整ビス
を軸方向に付勢するコイルばねとを具備したことを特徴
とするテープレコーダの磁気ヘッド装置。1. A holding member rotatably mounted on an azimuth plate fixed to a head base and carrying a magnetic head, and the azimuth plate for abutting against a rotating arm of the holding member to adjust a rotation angle of the magnetic head. The azimuth adjusting screw fastened to the azimuth adjusting screw and the seat having the azimuth adjusting screw fastened to the head base so as to face the azimuth adjusting screw tightened and having an opening in at least one direction orthogonal to the axis of the azimuth adjusting screw. And a coil spring that is formed between the seat and the head of the azimuth adjusting screw and urges the azimuth adjusting screw in the axial direction, the magnetic head device of the tape recorder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62184030A JP2529281B2 (en) | 1987-07-23 | 1987-07-23 | Tape head magnetic head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62184030A JP2529281B2 (en) | 1987-07-23 | 1987-07-23 | Tape head magnetic head device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6427018A JPS6427018A (en) | 1989-01-30 |
| JP2529281B2 true JP2529281B2 (en) | 1996-08-28 |
Family
ID=16146125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62184030A Expired - Fee Related JP2529281B2 (en) | 1987-07-23 | 1987-07-23 | Tape head magnetic head device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2529281B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6269588B1 (en) | 1998-09-18 | 2001-08-07 | Shoko Ito | Flower pot for group planting |
-
1987
- 1987-07-23 JP JP62184030A patent/JP2529281B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6269588B1 (en) | 1998-09-18 | 2001-08-07 | Shoko Ito | Flower pot for group planting |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6427018A (en) | 1989-01-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |