JPH0119228Y2 - - Google Patents
Info
- Publication number
- JPH0119228Y2 JPH0119228Y2 JP1353183U JP1353183U JPH0119228Y2 JP H0119228 Y2 JPH0119228 Y2 JP H0119228Y2 JP 1353183 U JP1353183 U JP 1353183U JP 1353183 U JP1353183 U JP 1353183U JP H0119228 Y2 JPH0119228 Y2 JP H0119228Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- holding frame
- band member
- tilt angle
- head
- 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
Links
- 230000007246 mechanism Effects 0.000 claims description 17
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は磁気ヘツドがテープ走行方向に応じて
半回転する磁気ヘツド機構に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a magnetic head mechanism in which the magnetic head rotates half a turn in accordance with the tape running direction.
従来技術
一般にオートリバース機能を有するテープレコ
ーダの磁気ヘツド機構は、一例として、テープ走
行方向の反転に応じて磁気ヘツドが半回転して通
常位置と反転位置とをとる構成としてある。この
構成の磁気ヘツド機構では、磁気ヘツドが水平面
に対して傾斜していると、ヘツド面の磁気テープ
への添接姿勢が通常位置と反転位置とで相違し、
ノーマル再生時とリバース再生時とで再生出力レ
ベルに差が出てしまうことになり、好ましくな
い。この磁気ヘツド機構において、再生出力レベ
ルの差を無くするには、磁気ヘツドが、水平面に
対する俯仰角（チルト角）を0゜とされた状態で組
付けられている必要がある。しかし、従来の磁気
ヘツド機構においては、磁気ヘツドのチルト角を
調整する機構は備わつておらず、部品精度によつ
ては磁気ヘツドのチルト角が許容値を越えたりし
て、品質及び歩留りの点で難点があつた。BACKGROUND OF THE INVENTION In general, a magnetic head mechanism of a tape recorder having an auto-reverse function is configured such that the magnetic head rotates half a turn in response to a reversal of the tape running direction to take a normal position and a reversed position. In the magnetic head mechanism with this configuration, when the magnetic head is tilted with respect to the horizontal plane, the attachment posture of the head surface to the magnetic tape is different between the normal position and the reversed position.
This is undesirable since there will be a difference in the playback output level between normal playback and reverse playback. In this magnetic head mechanism, in order to eliminate differences in reproduction output levels, the magnetic head must be assembled with its elevation angle (tilt angle) relative to the horizontal plane at 0 degrees. However, conventional magnetic head mechanisms do not have a mechanism to adjust the tilt angle of the magnetic head, and depending on the precision of the parts, the tilt angle of the magnetic head may exceed the allowable value, resulting in poor quality and yield. There were some difficulties.
問題点を解決するための手段
本考案は上記問題点を解決した磁気ヘツド機構
を提供することを目的とするものであり、磁気ヘ
ツドを取付台に回転可能に支持されている保持枠
内に組込んで設け、該磁気ヘツドがテープ走査方
向に応じて該保持枠と一体的に半回転して通常位
置と反転位置とをとる磁気ヘツド機構において、
該磁気ヘツドを囲繞して該磁気ヘツドに嵌着され
たばね性を有するバンド部材と、該バンド部材に
螺合して該磁気ヘツドを該保持枠の内部に固定す
る固定用ねじと、該保持枠に螺合してこの内部に
突出して該磁気ヘツドを押し該磁気ヘツドの俯仰
角を該バンド部材の弾性変形を伴つて変える調整
ねじとよりなる該磁気ヘツドの俯仰角を調整しう
る機構を備えてなる構成としたものである。Means for Solving the Problems The purpose of the present invention is to provide a magnetic head mechanism that solves the above problems, in which the magnetic head is assembled within a holding frame that is rotatably supported on a mounting base. In a magnetic head mechanism, the magnetic head is provided in a tape scanning direction, and the magnetic head rotates half a rotation integrally with the holding frame to take a normal position and an inverted position according to the tape scanning direction,
A band member having spring properties that surrounds the magnetic head and is fitted onto the magnetic head; a fixing screw that is screwed into the band member to fix the magnetic head inside the holding frame; and the holding frame. and a mechanism capable of adjusting the elevation angle of the magnetic head, which comprises an adjustment screw that is screwed into the band member and protrudes into the inside thereof to push the magnetic head and change the elevation angle of the magnetic head with elastic deformation of the band member. The structure is as follows.
実施例
次に本考案になる磁気ヘツド機構の一実施例に
ついて説明する。Embodiment Next, an embodiment of the magnetic head mechanism according to the present invention will be described.
第１図及び第２図に示すように、磁気ヘツド機
構１は、大略、ヘツドベース（図示せず）上に固
定されたヘツドマウントベース２と、この内部に
回転可能に支持されている磁気ヘツド構造体３と
よりなる。磁気ヘツド構造体３は、第３図に併せ
て示すように、磁気ヘツド４と、磁気ヘツド４を
囲んでこれを保持する矩形状の保持枠５と、保持
枠５を内部に収納保持する略筒状のホルダ６とよ
りなる三重構造となつている。磁気ヘツド４は調
整ねじ７により高さ位置を調整され、また別の調
整ねじ８により後述するようにチルト角を調整さ
れた状態で組込まれている。 As shown in FIGS. 1 and 2, the magnetic head mechanism 1 generally includes a head mount base 2 fixed on a head base (not shown), and a magnetic head structure rotatably supported inside the head mount base 2. Consists of body 3. As shown in FIG. 3, the magnetic head structure 3 includes a magnetic head 4, a rectangular holding frame 5 that surrounds and holds the magnetic head 4, and a rectangular holding frame 5 that houses and holds the holding frame 5 inside. It has a triple structure consisting of a cylindrical holder 6. The magnetic head 4 is installed with its height adjusted by an adjustment screw 7 and its tilt angle adjusted by another adjustment screw 8, as will be described later.
テープレコーダのノーマル再生時、磁気ヘツド
構造体３は、第１図に示すように、ホルダ６の鍔
部６ａが一側のアジマス調整ねじ９に当接した回
動位置にあり、磁気ヘツド４は同図に示す通常位
置にある。 During normal playback of the tape recorder, the magnetic head structure 3 is in a rotational position where the flange 6a of the holder 6 is in contact with the azimuth adjustment screw 9 on one side, as shown in FIG. It is in the normal position shown in the figure.
リバース再生に際しては、磁気ヘツド構造体３
が時計方向にクリツク的に半回転して第２図に示
すように鍔部６ａが他側のアジマス調整ねじ１０
に当接した状態となり、磁気ヘツド４は同図に示
す反転状態となる。 During reverse playback, the magnetic head structure 3
rotates half a turn clockwise, and as shown in FIG.
The magnetic head 4 is in the inverted state shown in the figure.
次に本考案の要部について、第４図乃至第６図
を併せ参照して説明する。 Next, the main parts of the present invention will be explained with reference to FIGS. 4 to 6.
磁気ヘツド４は、第４図に示すように、この後
端寄りの個所に、ばね性を有するバンド部材１１
が嵌着された状態で、保持枠５内に組込まれてい
る。バンド部材１１は、第５図に示すように、細
長のステンレス製板片の両側をＬ字形に対称に折
曲形成して、上端の一部が開いている矩形枠状と
したものであり、下側基部の中央にはねじ孔１１
ａを有する。このバンド部材１１は、磁気ヘツド
４を囲繞してこれを周囲よりバネ力により挾み込
むような格好で、即ち、左右の垂立腕１１ｂ，１
１ｃが左右に多少押し拡げられた格好で、磁気ヘ
ツド４に嵌着してある。 As shown in FIG. 4, the magnetic head 4 has a band member 11 having a spring property near the rear end.
It is assembled into the holding frame 5 in a fitted state. As shown in FIG. 5, the band member 11 is formed by bending both sides of an elongated stainless steel plate symmetrically into an L shape to form a rectangular frame shape with a part of the upper end open. There is a screw hole 11 in the center of the lower base.
It has a. This band member 11 is arranged so as to surround the magnetic head 4 and sandwich it from the surroundings by a spring force.
1c is fitted onto the magnetic head 4 with the shape being expanded slightly from side to side.
この磁気ヘツド４は、第６図に示すように、保
持枠５の下側より挿入された固定ねじ１２がバン
ド部材１１のねじ孔１１ａと螺合した状態で、即
ち、バンド部材１１の基部側を固定されて保持枠
５内に仮固定してある。ここで保持枠５は、内側
の下面５ａが第６図中保持枠開口に向かつて下方
に小なる角度θ傾斜した面とされた形状としてあ
る。このため、磁気ヘツド４は上記の仮固定状態
では、傾斜下面５ａに沿い、その軸線Ｃが水平面
Ｈに対して下方に角度θ傾斜した状態となつてい
る。 As shown in FIG. 6, the magnetic head 4 is mounted in a state in which the fixing screw 12 inserted from the lower side of the holding frame 5 is screwed into the screw hole 11a of the band member 11, that is, the base side of the band member 11. is fixed and temporarily fixed within the holding frame 5. Here, the holding frame 5 has a shape in which an inner lower surface 5a is inclined downward at a small angle θ toward the holding frame opening in FIG. Therefore, in the temporarily fixed state, the magnetic head 4 is in a state where its axis C is inclined downward at an angle θ with respect to the horizontal plane H along the inclined lower surface 5a.
前記のチルト角調整ねじ８は、保持枠５の貫通
ねじ孔５ｂ螺合してあり、その先端８ａは磁気ヘ
ツド４の下面４ａのうちヘツド面４ｂ寄りの個所
に対向する。この調整ねじ８は、磁気ヘツド構造
体３が組立てられこれがヘツドマウントベース２
内に組込まれた状態で適宜ねじ込まれる。このね
じ込みにより、磁気ヘツド４はヘツド面４ｂ寄り
の個所を調整ねじ８の先端８ａにより押し上げら
れ、バンド部材１１の弾性変形を伴つて、上記固
定ねじ１２による固定個所Ｐを中心に第６図中上
方に回動変位し、最終的には、第３図中実線及び
第６図中二点鎖線で示すように軸線Ｃが水平面Ｈ
と一致した状態、即ちチルト角0゜の状態に調整さ
れる。 The tilt angle adjustment screw 8 is screwed into the through-hole 5b of the holding frame 5, and its tip 8a faces a portion of the lower surface 4a of the magnetic head 4 closer to the head surface 4b. This adjustment screw 8 is attached to the head mount base 2 when the magnetic head structure 3 is assembled.
It is screwed in as appropriate when it is assembled inside. As a result of this screwing, the magnetic head 4 is pushed up by the tip 8a of the adjusting screw 8 at a portion near the head surface 4b, and with the elastic deformation of the band member 11, the magnetic head 4 is centered around the point P fixed by the fixing screw 12 as shown in FIG. The axis C is rotated upward, and the axis C finally reaches the horizontal plane H as shown by the solid line in FIG.
The tilt angle is adjusted to a state consistent with that, that is, a state where the tilt angle is 0°.
なお、このチルト角調整済の状態では、ヘツド
面４ｂは、磁気ヘツド４が通常位置にあるときに
も反転位置にあるときにも共に垂直面となり、ヘ
ツド面４ｂの磁気テープへの添接状態は変化せ
ず、ノーマル再生時とリバース再生時とで再生出
力レベルは同一となり、差は無くなる。同じく、
左と右の各チヤンネルについても出力レベルの差
は無くなる。 In this tilt angle adjusted state, the head surface 4b is a vertical surface both when the magnetic head 4 is in the normal position and when it is in the reversed position, and the state in which the head surface 4b is attached to the magnetic tape is does not change, and the reproduction output level becomes the same during normal reproduction and during reverse reproduction, and there is no difference. Similarly,
There is also no difference in output level between the left and right channels.
また、チルト角調整済の状態では、磁気ヘツド
４は、弾性変形しているバンド部材１１のばね力
により第３図中時計方向に回動付勢され、下面４
ａが調整ねじ８の先端８ａに強力に押付けられた
状態となり、半回転を繰り返しても位置ずれを起
こすことなく、調整済の位置に安定に保たれる。 Further, in the state where the tilt angle has been adjusted, the magnetic head 4 is urged to rotate clockwise in FIG. 3 by the spring force of the elastically deformed band member 11, and the lower surface 4
a is strongly pressed against the tip 8a of the adjustment screw 8, and even after repeated half-turns, the position does not shift and is stably maintained at the adjusted position.
更には、チルト角調整は、磁気ヘツド構造体全
体を変位させるのではなく、磁気ヘツド４だけを
保持枠５の内部で変位させて行なうため、それだ
け精密に行なわれる。 Furthermore, since the tilt angle adjustment is performed by displacing only the magnetic head 4 inside the holding frame 5, rather than by displacing the entire magnetic head structure, the tilt angle can be adjusted with greater precision.
効 果
上述の如く、本考案になる磁気ヘツド機構によ
れば、以下に拳げる特長を有する。Effects As described above, the magnetic head mechanism according to the present invention has the following features.
磁気ヘツドの俯仰角を調整することが出来る
ため、部品精度及び組立精度が悪かつたとして
も、適宜調整することにより磁気ヘツドの俯仰
角を0゜とすることが出来る。然して、通常位置
と反転位置とにおいて、ヘツド面が同じ状態で
磁気テープに添接することになり、ノーマル再
生時とリバース再生時との出力レベルを同じと
することが出来る。 Since the elevation angle of the magnetic head can be adjusted, even if the parts precision and assembly accuracy are poor, the elevation angle of the magnetic head can be set to 0° by making appropriate adjustments. Therefore, the head surface is attached to the magnetic tape in the same state in the normal position and in the reverse position, and the output level can be made the same during normal playback and reverse playback.
部品精度及び組立精度のバラツキによる影響
を無くして、品質の一様化を図ることが出来
る。 It is possible to achieve uniform quality by eliminating the influence of variations in component precision and assembly precision.
従来は調整が出来ずに不良品となつていたも
のも、調整して良品とすることが出来、歩留り
を向上し得る。 Items that could not be adjusted and were defective in the past can now be adjusted and made into good items, improving yields.
磁気ヘツド自体を保持枠とは独立に変位させ
るため、調整を精密に行なうことが出来、且つ
アジマスを変化させずに行なうことが出来る。 Since the magnetic head itself is displaced independently of the holding frame, adjustments can be made precisely and without changing the azimuth.
第１図及び第２図は夫々本考案になる磁気ヘツ
ド機構の磁気ヘツドが通常位置及び反転位置にあ
るときでの状態を示す正面図、第３図は第１図中
磁気ヘツド構造体の内部構造を示す縦断側面図、
第４図は保持枠内に組込まれる磁気ヘツドの斜視
図、第５図は磁気ヘツドに嵌着されるバンド部材
の斜視図、第６図は磁気ヘツドが組付けられただ
けのチルト角調整前の状態を示す磁気ヘツドのチ
ルト角調整動作を説明するための図である。
１…磁気ヘツド機構、２…ヘツドマウントベー
ス、３…磁気ヘツド構造体、４…磁気ヘツド、４
ａ…下面、４ｂ…ヘツド面、５…保持枠、５ａ…
傾斜下面、５ｂ…貫通ねじ孔、６…ホルダ、７…
高さ調整ねじ、８…チルト角調整ねじ、８ａ…先
端、９，１０…アジマス調整ねじ、１１…バンド
部材、１１ａ…ねじ孔、１１ｂ，１１ｃ…垂立
腕、１２…固定ねじ。
1 and 2 are front views showing the magnetic head of the magnetic head mechanism according to the present invention in its normal position and inverted position, respectively, and FIG. 3 is the interior of the magnetic head structure in FIG. 1. A longitudinal side view showing the structure;
Fig. 4 is a perspective view of the magnetic head assembled into the holding frame, Fig. 5 is a perspective view of the band member fitted to the magnetic head, and Fig. 6 is the magnetic head assembled but before tilt angle adjustment. FIG. 3 is a diagram for explaining the tilt angle adjustment operation of the magnetic head in the state shown in FIG. DESCRIPTION OF SYMBOLS 1...Magnetic head mechanism, 2...Head mount base, 3...Magnetic head structure, 4...Magnetic head, 4
a... Lower surface, 4b... Head surface, 5... Holding frame, 5a...
Inclined lower surface, 5b...through screw hole, 6...holder, 7...
Height adjustment screw, 8... Tilt angle adjustment screw, 8a... Tip, 9, 10... Azimuth adjustment screw, 11... Band member, 11a... Screw hole, 11b, 11c... Vertical arm, 12... Fixing screw.
Claims (1)
る保持枠内に組込んで設け、該磁気ヘツドがテー
プ走査方向に応じて該保持枠と一体的に半回転し
て通常位置と反転位置とをとる磁気ヘツド機構に
おいて、該磁気ヘツドを囲繞して該磁気ヘツドに
嵌着されたばね性を有するバンド部材と、該バン
ド部材に螺合して該磁気ヘツドを該保持枠の内部
に固定する固定用ねじと、該保持枠に螺合してこ
の内部に突出して該磁気ヘツドを押し該磁気ヘツ
ドの俯仰角を該バンド部材の弾性変形を伴つて変
える調整ねじとよりなる該磁気ヘツドの俯仰角を
調整しうる機構を備えてなる構成の磁気ヘツド機
構。 A magnetic head is installed in a holding frame that is rotatably supported by a mounting base, and the magnetic head rotates half a turn integrally with the holding frame in accordance with the tape scanning direction to change between a normal position and an inverted position. In the magnetic head mechanism, a band member having spring properties that surrounds the magnetic head and is fitted onto the magnetic head, and a fixing member that is screwed onto the band member to fix the magnetic head inside the holding frame. and an adjustment screw that is screwed into the holding frame and protrudes into the inside of the holding frame to push the magnetic head and change the elevation angle of the magnetic head with elastic deformation of the band member. A magnetic head mechanism comprising an adjustable mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1353183U JPS59121729U (en) | 1983-02-01 | 1983-02-01 | magnetic head mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1353183U JPS59121729U (en) | 1983-02-01 | 1983-02-01 | magnetic head mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59121729U JPS59121729U (en) | 1984-08-16 |
| JPH0119228Y2 true JPH0119228Y2 (en) | 1989-06-05 |
Family
ID=30144913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1353183U Granted JPS59121729U (en) | 1983-02-01 | 1983-02-01 | magnetic head mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59121729U (en) |
-
1983
- 1983-02-01 JP JP1353183U patent/JPS59121729U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59121729U (en) | 1984-08-16 |
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