JPS626578Y2 - - Google Patents
Info
- Publication number
- JPS626578Y2 JPS626578Y2 JP1979138677U JP13867779U JPS626578Y2 JP S626578 Y2 JPS626578 Y2 JP S626578Y2 JP 1979138677 U JP1979138677 U JP 1979138677U JP 13867779 U JP13867779 U JP 13867779U JP S626578 Y2 JPS626578 Y2 JP S626578Y2
- Authority
- JP
- Japan
- Prior art keywords
- head
- pair
- elastic bodies
- magnetic head
- electro
- 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
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案はバイモルフ等の電気−機械変換素子を
用いてヘツドを移動させ、これによつてトラツキ
ング補正を行いながらヘツドを記録媒体に対接さ
せて記録および／または再生を行うようにした記
録再生装置におけるヘツドの支持装置に関するも
のである。[Detailed Description of the Invention] The present invention uses an electro-mechanical transducer such as a bimorph to move the head, and performs tracking correction while bringing the head into contact with the recording medium to perform recording and/or reproduction. The present invention relates to a head support device in a recording/reproducing apparatus.
回転ヘツド方式のヘリカルスキヤン型VTR
（ビデオテープレコーダ）においては通常、巻付
けられたテープのドラムに対する傾斜、テープ走
行速度及び回転ヘツドの回転速度等に応じて傾斜
した記録トラツクが磁気テープ上に形成される。
その為磁気テープを記録時の速度と異つた速度で
走行させて再生しようとする場合、例えば、スチ
ル、スローモーシヨン、倍速等の各モードにおけ
る再生の場合には、ヘツドの走査軌跡が上述した
記録トラツクとは異なつた傾斜となる為に、ヘツ
ドは所定の記録トラツクから外れて走査すること
になる。このように磁気ヘツドが所定の記録トラ
ツクを外れて走査すると、ガードバンドノイズや
クロストークが発生するので好ましくない。そこ
でこの種VTRにおいては、いかなるモードにお
いても磁気ヘツドが記録トラツク上を正しく走査
するようにする為のトラツキング補正手段が必要
となる。このようなトラツキング補正手段とし
て、電気−機械変換素子、例えばバイモルフを用
いた磁気ヘツド支持装置が公知である。 Rotating head type helical scan type VTR
In a video tape recorder, a recording track is usually formed on a magnetic tape with an inclination depending on the inclination of the wound tape with respect to the drum, the running speed of the tape, the rotational speed of a rotary head, and the like.
Therefore, when playing back a magnetic tape by running it at a speed different from the speed at which it was recorded, for example, when playing in various modes such as still, slow motion, and double speed, the scanning locus of the head is The different slope from the track causes the head to scan off the predetermined recording track. If the magnetic head scans off the predetermined recording track in this way, guard band noise and crosstalk will occur, which is undesirable. Therefore, in this type of VTR, a tracking correction means is required to ensure that the magnetic head correctly scans the recording track in any mode. As such a tracking correction means, a magnetic head support device using an electro-mechanical transducer, such as a bimorph, is known.
バイモルフを用いた従来の磁気ヘツド支持装置
の構造を第１Ａ図に概略的に示す。磁気ヘツド支
持装置は、２枚の薄板状の電歪素子１ａ，１ｂを
中央電極２を介して互にはり合わせた構造のいわ
ゆるバイモルフ板３から成つている。磁気ヘツド
４はバイモルフ板３の先端部に接着等により取付
けられており、バイモルフ板３の他端部は図示の
如くヘツドドラム３３に固定されている。また電
歪素子１ａ，１ｂの片面には夫々電極５ａ，５ｂ
が被着されている。このような構造の磁気ヘツド
支持装置において、電歪素子１ａ，１ｂに各電極
を通じて適当な方向の電圧を印加すると、電歪現
象（圧電効果）によつて、例えば第１Ｂ図に示す
如く、バイモルフ板３は印加電圧に応じて湾曲
し、従つて磁気ヘツド４は磁気テープ６に沿つて
上下方向に変位することになる。この磁気ヘツド
４の変位を印加電圧によつて適当にコントロール
すれば、上述したトラツキング補正が可能であ
る。 The structure of a conventional magnetic head support device using a bimorph is schematically shown in FIG. 1A. The magnetic head support device is composed of a so-called bimorph plate 3 having a structure in which two thin plate-shaped electrostrictive elements 1a and 1b are glued together with a central electrode 2 interposed therebetween. The magnetic head 4 is attached to the tip of the bimorph plate 3 by adhesive or the like, and the other end of the bimorph plate 3 is fixed to a head drum 33 as shown. Further, electrodes 5a and 5b are provided on one side of the electrostrictive elements 1a and 1b, respectively.
is covered. In the magnetic head support device having such a structure, when a voltage is applied in an appropriate direction to the electrostrictive elements 1a and 1b through the respective electrodes, a bimorph is formed due to the electrostrictive phenomenon (piezoelectric effect), as shown in FIG. 1B, for example. The plate 3 curves in response to the applied voltage, so that the magnetic head 4 is displaced vertically along the magnetic tape 6. If the displacement of the magnetic head 4 is appropriately controlled by the applied voltage, the tracking correction described above is possible.
即ち、磁気テープ６は第２図に示すように一対
のテープガイド３１，３２によつてヘツドドラム
３３の外周面にヘリカルに巻付けられている。そ
してこの磁気テープ６は図外の駆動手段によつて
V1の速度で走行している。一方磁気ヘツド４は
バイモルフ板３を介して回転するヘツドドラム３
３に保持されており、周速V2で走行しながら上
記磁気テープ６と接触している。従つてこの装置
で記録を行うと第３図に示すように多数の互に平
行な記録トラツクT1が磁気テープ６の長さ方向
に対して傾斜してこのテープ６上に形成される。
従つて記録時と同じ速度V1で磁気テープ６を走
行させるノーマル再生においては、磁気ヘツド４
は正しく上記記録トラツクT1上を走査すること
になり、記録トラツクT1から外れることはな
い。 That is, the magnetic tape 6 is helically wound around the outer peripheral surface of the head drum 33 by a pair of tape guides 31 and 32, as shown in FIG. This magnetic tape 6 is then driven by a drive means (not shown).
It is traveling at a speed of V 1 . On the other hand, the magnetic head 4 is connected to a head drum 3 which rotates via a bimorph plate 3.
3, and is in contact with the magnetic tape 6 while traveling at a circumferential speed of V2 . Therefore, when recording is performed with this apparatus, a large number of mutually parallel recording tracks T1 are formed on the magnetic tape 6 at an angle with respect to the longitudinal direction of the magnetic tape 6, as shown in FIG.
Therefore, during normal playback in which the magnetic tape 6 is run at the same speed V1 as during recording, the magnetic head 4
will correctly scan the recording track T1 and will not deviate from the recording track T1 .
しかし上記V1よりも遅い速度で磁気テープ６
を走行させながら再生を行う場合、例えばスロー
モーシヨンやスチルモーシヨン（Ｖ＝０となる）
のモードにおいては、第３図において点線で示す
ように磁気ヘツド４の走査軌跡T2の傾斜角が記
録トラツクT1の傾斜角よりも大きくなる。これ
によつて記録トラツクT1と磁気ヘツド４の軌跡
とが一致しなくなり、ガードバンドノイズやクロ
ストークが生ずることになる。そこで電圧を印加
してバイモルフ板３を適当に変形させることによ
つて磁気ヘツド４を第１Ｂ図に示すように変位さ
せると所定の記録トラツクT1を外れないように
走査させることができる。 However, at a speed slower than V 1 above, the magnetic tape 6
When playing while running, for example, slow motion or still motion (V = 0)
In this mode, the inclination angle of the scanning locus T2 of the magnetic head 4 becomes larger than the inclination angle of the recording track T1 , as shown by the dotted line in FIG. As a result, the recording track T1 and the locus of the magnetic head 4 no longer match, resulting in guard band noise and crosstalk. Therefore, by applying a voltage to appropriately deform the bimorph plate 3 and displacing the magnetic head 4 as shown in FIG. 1B, it is possible to scan the predetermined recording track T1 without deviating from it.
磁気テープ６の走行速度が上記V1よりも速い
場合についてもバイモルフ板３の変形によつてト
ラツキング補正がなされる。すなわち、例えば倍
速（Ｖ＝2V1）においては、第３図において鎖線
で示すように磁気ヘツド４の走査軌跡T3の傾斜
角が記録トラツクT1の傾斜角よりも小さくな
る。そこでこの場合にもバイモルフ板３を適当に
変形させ、記録トラツクT1と一致させることが
できる。 Tracking correction is also performed by deforming the bimorph plate 3 even when the running speed of the magnetic tape 6 is faster than V1 . That is, at double speed (V=2V 1 ), for example, the inclination angle of the scanning locus T 3 of the magnetic head 4 becomes smaller than the inclination angle of the recording track T 1 as shown by the chain line in FIG. Therefore, in this case as well, the bimorph plate 3 can be appropriately deformed to match the recording track T1 .
しかしながら、上述したような従来のヘツド支
持装置では、バイモルフ板３の長さ方向が磁気テ
ープ６の面に対して垂直になるようにこのバイモ
ルフ板３を配しているので、電圧が印加されると
バイモルフ板３は円弧状にたわむことになる。こ
のために磁気ヘツド４は上下方向に移動するばか
りでなく傾斜することになる。この結果、磁気ヘ
ツド４の先端面と磁気テープ６との間に第１Ｂ図
に示す如く磁気ヘツド４の変位に応じて大きくな
るような角度θが生ずる。また磁気ヘツド４の変
位が大きくなつた場合には、磁気ヘツド４が磁気
テープ６から離れてしまう恐れもある。このよう
に磁気ヘツド４と磁気テープ６との間に角度がつ
いたり、磁気ヘツド４が磁気テープ６から離れて
しまつたような場合には、スペーシングロスの為
に再生信号が減少して、充分な大きさの再生信号
を得ることが出来ないという欠点があつた。 However, in the conventional head support device as described above, the bimorph plate 3 is arranged so that the length direction of the bimorph plate 3 is perpendicular to the surface of the magnetic tape 6, so that the voltage is not applied. Then, the bimorph plate 3 bends in an arc shape. For this reason, the magnetic head 4 not only moves vertically but also tilts. As a result, an angle .theta. is created between the tip end surface of the magnetic head 4 and the magnetic tape 6, as shown in FIG. 1B, which increases as the magnetic head 4 is displaced. Furthermore, if the displacement of the magnetic head 4 becomes large, there is a possibility that the magnetic head 4 will separate from the magnetic tape 6. In this way, if there is an angle between the magnetic head 4 and the magnetic tape 6, or if the magnetic head 4 is separated from the magnetic tape 6, the reproduction signal will decrease due to spacing loss. The drawback was that it was not possible to obtain a reproduced signal of sufficient size.
本考案は上述の問題点に鑑みてなされたもので
あつて、電気−機械変換素子を用いてヘツドを移
動可能にするとともに、このヘツドを記録媒体に
対接させて記録および／または再生を行なうよう
にした回転磁気ヘツド記録再生装置において、
一端が固定されている互いに平行な一対の弾性
体の自由端を互いに連結するとともに、連結され
た前記自由端に前記ヘツドを支持するようにな
し、
前記一対の弾性体の間にこれら一対の弾性体と
略平行に前記電気−機械変換素子を配し、
この電気−機械変換素子の一端を前記一対の弾
性体の前記一端とともに固定し、
前記電気−機械変換素子の自由端を前記一対の
弾性体の前記自由端に連結し、
前記電気−機械変換素子を用いて前記一対の弾
性体を弾性変形させるようにしたことを特徴とす
る回転磁気ヘツド記録再生装置におけるヘツドの
支持装置に係るものである。このように構成する
ことによつて、ヘツドはほゞ平行に移動すること
になり、従つてヘツドが記録媒体に対して傾くこ
ともなく、スペーシングロスを防止することが出
来る。よつてトラツキング補正を行つても再生信
号が減衰することはない。 The present invention has been developed in view of the above-mentioned problems, and uses an electro-mechanical transducer to make a head movable, and also brings this head into contact with a recording medium to perform recording and/or reproduction. In the rotating magnetic head recording and reproducing apparatus, the free ends of a pair of parallel elastic bodies each having one end fixed are connected to each other, and the head is supported by the connected free ends, and the head is supported by the connected free ends. The electro-mechanical conversion element is disposed between a pair of elastic bodies substantially parallel to the pair of elastic bodies, one end of the electro-mechanical conversion element is fixed together with the one end of the pair of elastic bodies, and the electro-mechanical conversion element is fixed to the one end of the pair of elastic bodies. A rotary magnetic head recording characterized in that a free end of a mechanical transducer is connected to the free ends of the pair of elastic bodies, and the electro-mechanical transducer is used to elastically deform the pair of elastic bodies. This invention relates to a support device for a head in a playback device. With this configuration, the head moves substantially parallel to the recording medium, and therefore the head does not tilt relative to the recording medium, thereby preventing spacing loss. Therefore, even if tracking correction is performed, the reproduced signal will not be attenuated.
以下本考案を実施例につき図面を参照して説明
する。 The present invention will now be described with reference to the accompanying drawings.
先ず本考案の第１の実施例によるヘツド支持装
置の構造を第４図に概略的に示す。所定の間隔を
隔てて互に平行に配された一対の板ばね等から成
る弾性板７，８の自由端を構成する先端部間に、
例えば合成樹脂等から成形された支持部材９が固
着されており、この支持部材９によつて一対の弾
性板７，８の先端は連結されている。この支持部
材９には上記板ばね７，８の間にこれらとほぼ平
行に配されたバイモルフ板３の先端が連結されて
おり、これらの板ばね７，８及びバイモルフ板３
は上記回転ドラム３３内のボス部の近傍の所定箇
所に、例えば図示の如くねじ１０によつて一体的
に取付けられている。なおバイモルフ板３は第１
Ａ図に示した従来のものと同一構造のものであつ
て良い。磁気ヘツド４は弾性板７の先端部上面に
接着等により取付けられている。支持部材９の背
面側には凹部１１が形成されており、この凹部１
１の入口部分には互に対向して内側に突出した一
対の突起部１２が一体的に形成されている。バイ
モルフ板３の先端部は突起部１２の間から凹部１
１に挿入されて、これら一対の突起部１２によつ
て挾持されている。バイモルフ板３と支持部材９
との間の連結構造をこのような構成とすると、バ
イモルフ板３が変形する時に、その先端部は比較
的自由に動くことが出来、従つて変形時のバイモ
ルフ板３の内部応力を緩和することが出来る。こ
のためにバイモルフ板３の変形が容易となる。 First, the structure of a head support device according to a first embodiment of the present invention is schematically shown in FIG. Between the tips forming the free ends of elastic plates 7 and 8, which are made of a pair of leaf springs or the like, arranged parallel to each other with a predetermined interval apart,
For example, a support member 9 molded from synthetic resin or the like is fixed, and the tips of the pair of elastic plates 7 and 8 are connected by this support member 9. The support member 9 is connected to the tip of a bimorph plate 3 arranged between and parallel to the plate springs 7 and 8, and these plate springs 7 and 8 and the bimorph plate 3 are connected to each other.
is integrally attached to a predetermined location near the boss in the rotating drum 33 by, for example, a screw 10 as shown. Note that the bimorph plate 3 is the first
It may have the same structure as the conventional one shown in Figure A. The magnetic head 4 is attached to the upper surface of the tip of the elastic plate 7 by adhesive or the like. A recess 11 is formed on the back side of the support member 9.
A pair of protrusions 12 that face each other and protrude inward are integrally formed at the inlet portion of the protrusion 1 . The tip of the bimorph plate 3 is inserted into the recess 1 from between the protrusions 12.
1 and is held between the pair of protrusions 12. Bimorph plate 3 and support member 9
If the connecting structure between the bimorph plate 3 and the bimorph plate 3 is configured in this manner, the tip portion thereof can move relatively freely when the bimorph plate 3 is deformed, and therefore the internal stress of the bimorph plate 3 during deformation can be alleviated. I can do it. Therefore, the bimorph plate 3 can be easily deformed.
次に本実施例によるヘツド支持装置の動作を説
明する。バイモルフ板３に適当な方向及び大きさ
の電圧を印加すると、バイモルフ板３は、例えば
第４図に示す如く湾曲してこのバイモルフ板３と
連結されているヘツド支持部材９が上下方向に変
位しようとする。この時、支持部材９の上面およ
び下面にそれらの自由端が固着された板ばね７，
８は、バイモルフ板３が変形する平面内であつて
かつバイモルフ板３の上下方向の両側に互に所定
の間隔を隔てて配され、その変形部分の長さを互
に等しくとつてあるので、一対の板ばね７，８の
内の一方が伸びて他方が縮むような変形が起ら
ず、これらの板ばね７，８はバイモルフ板３の変
形に応じて、図示の如くほぼＳ字状に弾性変形す
る。この結果、支持部材９の回転がこれら板ばね
７，８によつて規制され、支持部材９は回転する
ことなくほゞ平行に上下方向に変位する。従つて
板ばね７の先端部に取付けられた磁気ヘツド４も
磁気テープ６の表面に沿つてほゞ平行に変位し、
回転することはない。すなわち磁気ヘツド４の先
端のテープ６との摺接面は常にこのテープ６と平
行に保たれた状態で上下方向に移動することにな
る。その為従来構造のように磁気ヘツド４と磁気
テープ６との間に角度がつかないので、スペーシ
ングロスの問題が起こらない。 Next, the operation of the head support device according to this embodiment will be explained. When a voltage of an appropriate direction and magnitude is applied to the bimorph plate 3, the bimorph plate 3 will curve as shown in FIG. 4, for example, and the head support member 9 connected to the bimorph plate 3 will be displaced in the vertical direction. shall be. At this time, the leaf springs 7 whose free ends are fixed to the upper and lower surfaces of the support member 9,
8 are arranged within the plane in which the bimorph plate 3 deforms and are spaced apart from each other by a predetermined distance on both sides of the bimorph plate 3 in the vertical direction, and the lengths of the deformed portions are set equal to each other, so that There is no deformation in which one of the pair of leaf springs 7, 8 expands and the other contracts, and these leaf springs 7, 8 form a substantially S-shape as shown in the figure in response to the deformation of the bimorph plate 3. Deforms elastically. As a result, the rotation of the support member 9 is restricted by the leaf springs 7 and 8, and the support member 9 is displaced in the vertical direction substantially in parallel without rotating. Therefore, the magnetic head 4 attached to the tip of the leaf spring 7 is also displaced approximately parallel to the surface of the magnetic tape 6.
It never rotates. That is, the sliding surface of the tip of the magnetic head 4 that comes into contact with the tape 6 is always kept parallel to the tape 6 and moves in the vertical direction. Therefore, since there is no angle between the magnetic head 4 and the magnetic tape 6 unlike in the conventional structure, the problem of spacing loss does not occur.
次に本考案の第２の実施例によるヘツド支持装
置を第５図によつて説明する。なおこの実施例に
おいて第４図と対応する部分には同一の符号を付
してその説明を省略する。本実施例においては、
一対の弾性板７，８の自由端を連結する支持部材
９′の背面に結合部１３が一体的に形成されてい
る。結合部１３は薄肉部１４と嵌合部１５とから
成り、嵌合部１５に設けられた凹部１６にバイモ
ルフ板３の先端部が嵌合して取付けられている。
両者の間に接着されても良い。このような連結構
造とすると、薄肉部１４の弾性によつて嵌合部１
５が比較的自由に動き、従つてバイモルフ板３の
変形が容易となる。この場合、薄肉部１４の厚さ
は、バイモルフ板３の先端部の上下方向の運動を
あまり吸収しない程度とするのが良い。 Next, a head support device according to a second embodiment of the present invention will be explained with reference to FIG. In this embodiment, parts corresponding to those in FIG. 4 are designated by the same reference numerals, and their explanation will be omitted. In this example,
A connecting portion 13 is integrally formed on the back surface of the support member 9' that connects the free ends of the pair of elastic plates 7 and 8. The coupling part 13 consists of a thin part 14 and a fitting part 15, and the tip of the bimorph plate 3 is fitted into a recess 16 provided in the fitting part 15.
It may also be glued between the two. With such a connection structure, the elasticity of the thin part 14 allows the fitting part 1 to
5 can move relatively freely, and therefore the bimorph plate 3 can be easily deformed. In this case, the thickness of the thin portion 14 is preferably set to such a level that it does not absorb much of the vertical movement of the tip of the bimorph plate 3.
以上本考案を実施例につき説明したが、本考案
はその技術的思想に基づいて種々に変更が可能で
ある。例えば、上記実施例においては、２枚の板
ばね７，８を用いて一対の弾性体を構成したが、
第６図に示すように一枚の板ばねを中央部でコ字
状に折り曲げたものを用い、これによつて一対の
弾性体７，８を形成するとともに、この折曲げ部
分に支持部材９を保持することも出来る。又、磁
気ヘツド４は、上記実施例において板ばね７の先
端部に取付けられたが、板ばね８の先端部に取付
けられても良く、又支持部材９に取付箇所を設け
て取付けることも出来る。更に、磁気ヘツド４の
向きは必要に応じて様々に変更出来、例えばギヤ
ツプ部即ちテープ摺動面を板ばね７，８の側面と
平行になるように配し、磁気テープを図の紙面と
平行な面に沿つて走行させるようにしても良い。
更に、弾性体７，８と支持部材９とを一体に形成
することも出来る。 Although the present invention has been described above with reference to embodiments, the present invention can be modified in various ways based on its technical concept. For example, in the above embodiment, the pair of elastic bodies was constructed using two leaf springs 7 and 8.
As shown in FIG. 6, a single leaf spring is bent into a U-shape at the center, thereby forming a pair of elastic bodies 7 and 8, and a supporting member 9 is placed at this bent portion. It is also possible to hold. Further, although the magnetic head 4 was attached to the tip of the leaf spring 7 in the above embodiment, it may be attached to the tip of the leaf spring 8, or it can be attached by providing an attachment point on the support member 9. . Furthermore, the orientation of the magnetic head 4 can be changed in various ways as required. For example, the gap part, that is, the tape sliding surface is arranged parallel to the side surfaces of the leaf springs 7 and 8, and the magnetic tape is arranged parallel to the plane of the drawing. It is also possible to make the vehicle run along a certain surface.
Furthermore, the elastic bodies 7, 8 and the support member 9 can also be formed integrally.
以上説明したように、本考案によれば、電気−
機械変換素子の変位の方向即ちヘツドの移動方向
に互に所定の間隔を隔て、しかも互に平行な一対
の弾性体を配し、これらの弾性体の自由端を連結
し、この自由端にヘツドを支持するようにしてヘ
ツドの回転運動を規制しているので、ヘツドの変
位が記録媒体の面に沿つた平行移動となり、ヘツ
ドが記録媒体に対して傾くことがなく、従つてス
ペーシングロスを防止することが出来る。それ故
再生信号を減少させることなくトラツキング補正
を行なえる。 As explained above, according to the present invention, electricity
A pair of elastic bodies are arranged parallel to each other at a predetermined distance in the direction of displacement of the mechanical transducer element, that is, in the direction of movement of the head.The free ends of these elastic bodies are connected, and the head is attached to the free ends. Since the rotational movement of the head is regulated by supporting the head, the displacement of the head is a parallel movement along the surface of the recording medium, and the head is not tilted with respect to the recording medium, thus reducing spacing loss. It can be prevented. Therefore, tracking correction can be performed without reducing the reproduced signal.
又、本考案においては、バイモルフ等の電気−
機械変換素子を一対の弾性体の間に配し、上記電
気−機械変換素子の一端を上記一対の弾性体の一
端とともに固定し、上記電気−機械変換素子の自
由端を上記一対の弾性体の自由端に連結してい
る。従つて、ヘツド支持装置の高速応答性が良
く、しかも支持装置全体をコンパクトに構成する
ことが出来る。それ故、本考案は回転磁気ヘツド
の支持装置として特に好適なものである。 In addition, in the present invention, electric
A mechanical transducer is disposed between a pair of elastic bodies, one end of the electro-mechanical transducer is fixed together with one end of the pair of elastic bodies, and a free end of the electro-mechanical transducer is fixed between the two elastic bodies. Connected to the free end. Therefore, the head support device has good high-speed response, and the entire support device can be constructed compactly. Therefore, the present invention is particularly suitable as a support device for a rotating magnetic head.
第１Ａ図及び第１Ｂ図は従来構造のヘツド支持
装置を示す側面図、第２図はヘツドドラムの要部
平面図、第３図は磁気テープ上のトラツクを示す
このテープの平面図、第４図は本考案の第１実施
例によるヘツド支持装置を示す要部側面図、第５
図は本考案の第２の実施例を示す要部側面図、第
６図は上記第１の実施例の変形例を示す側面図で
ある。
なお図面に用いられている符号において、３…
…バイモルフ板、４……磁気ヘツド、６……磁気
テープ、７，８……弾性板（板バネ）、９……支
持部材、である。
1A and 1B are side views showing a head support device of conventional structure, FIG. 2 is a plan view of essential parts of the head drum, FIG. 3 is a plan view of this tape showing tracks on the magnetic tape, and FIG. 4 5 is a side view of main parts showing the head support device according to the first embodiment of the present invention;
The figure is a side view of essential parts showing a second embodiment of the present invention, and FIG. 6 is a side view showing a modification of the first embodiment. In addition, in the symbols used in the drawings, 3...
... bimorph plate, 4 ... magnetic head, 6 ... magnetic tape, 7, 8 ... elastic plate (plate spring), 9 ... support member.
Claims (1)
にするとともに、このヘツドを記録媒体に対接さ
せて記録および／または再生を行なうようにした
回転磁気ヘツド記録再生装置において、 一端が固定されている互いに平行な一対の弾性
体の自由端を互いに連結するとともに、連結され
た前記自由端に前記ヘツドを支持するようにな
し、 前記一対の弾性体の間にこれら一対の弾性体と
略平行に前記電気−機械変換素子を配し、 この電気−機械変換素子の一端を前記一対の弾
性体の前記一端とともに固定し、 前記電気−機械変換素子の自由端を前記一対の
弾性体の前記自由端に連結し、 前記電気−機械変換素子を用いて前記一対の弾
性体を弾性変形させるようにしたことを特徴とす
る回転磁気ヘツド記録再生装置におけるヘツドの
支持装置。[Claims for Utility Model Registration] A rotary magnetic head recording/reproducing device in which the head is movable using an electro-mechanical transducer and the head is brought into contact with a recording medium for recording and/or reproduction. The free ends of a pair of parallel elastic bodies each having one end fixed are connected to each other, and the head is supported on the connected free ends, and the pair of elastic bodies is arranged between the pair of elastic bodies. The electro-mechanical transducer is arranged substantially parallel to the elastic bodies, one end of the electro-mechanical transducer is fixed together with the one end of the pair of elastic bodies, and the free end of the electro-mechanical transducer is fixed to the one end of the pair of elastic bodies. A support device for a head in a rotating magnetic head recording/reproducing device, characterized in that the device is connected to the free ends of the elastic bodies, and the electro-mechanical transducer is used to elastically deform the pair of elastic bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979138677U JPS626578Y2 (en) | 1979-10-05 | 1979-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979138677U JPS626578Y2 (en) | 1979-10-05 | 1979-10-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5656030U JPS5656030U (en) | 1981-05-15 |
| JPS626578Y2 true JPS626578Y2 (en) | 1987-02-16 |
Family
ID=29370028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979138677U Expired JPS626578Y2 (en) | 1979-10-05 | 1979-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS626578Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5359406A (en) * | 1976-11-09 | 1978-05-29 | Sony Corp | Magnetism erasing device |
-
1979
- 1979-10-05 JP JP1979138677U patent/JPS626578Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5359406A (en) * | 1976-11-09 | 1978-05-29 | Sony Corp | Magnetism erasing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5656030U (en) | 1981-05-15 |
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