JPS6079512A - Magnetic recording and reproducing device - Google Patents
Magnetic recording and reproducing deviceInfo
- Publication number
- JPS6079512A JPS6079512A JP18558183A JP18558183A JPS6079512A JP S6079512 A JPS6079512 A JP S6079512A JP 18558183 A JP18558183 A JP 18558183A JP 18558183 A JP18558183 A JP 18558183A JP S6079512 A JPS6079512 A JP S6079512A
- Authority
- JP
- Japan
- Prior art keywords
- chip
- elastic member
- head chip
- head
- magnetic recording
- 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
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
- G11B33/08—Insulation or absorption of undesired vibrations or sounds
-
- 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
- G11B5/52—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 simultaneous movement of head and record carrier, e.g. rotation of head
- G11B5/53—Disposition or mounting of heads on rotating support
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は単結晶フェライト製磁気ヘッドチップを回転シ
リンダに搭載してなる回転ヘッドを用いるヘリカルスキ
ャン方式の磁気記録再生装置、特に詳細には再生時に発
生する摺動ノイズの低減化が図られた磁気記録再生装置
に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a helical scan type magnetic recording/reproducing device using a rotating head in which a magnetic head chip made of single crystal ferrite is mounted on a rotating cylinder. The present invention relates to a magnetic recording/reproducing device that is designed to reduce sliding noise that sometimes occurs.
（従来技術）
周知のように、ヘリカルスキャン方式のビデオテープレ
コーダ等の磁気記録再生装置（本明細書においては再生
のみを行なう装置も含むものとする）には、磁気ヘッド
チップを回転シリンダに搭載してなる回転ヘッドが用い
られている。最近のこの種の回転ヘッドにあっては、上
記磁気ヘッドチップは電磁変換特性上優れたＭｎ Ｚｎ
系単結晶フェライトから形成されるのが一般的になって
いる。(Prior Art) As is well known, magnetic recording and reproducing devices such as helical scan video tape recorders (in this specification, devices that only perform playback are also included) have a magnetic head chip mounted on a rotating cylinder. A rotating head is used. In recent rotary heads of this type, the magnetic head chip is made of MnZn, which has excellent electromagnetic conversion characteristics.
It has become common to be formed from single-crystal ferrite.
しかしながら上記単結晶フェライト製磁気ヘッドチップ
を搭載した回転ヘッドを用いる磁気記録再生装置におい
ては、再生時に摺動ノイズが発生しやすいという不具合
が認められている。ごの摺動ノ、イズの発生原因は種々
研究がなされているにもかかわらず充分解明されてはい
ないが、磁気テープと回転ヘッドとの摺動点で発生する
振動および熱が大きく関与していると考えられている。However, in a magnetic recording/reproducing device using a rotary head equipped with the single-crystal ferrite magnetic head chip described above, it has been recognized that there is a problem in that sliding noise is likely to occur during reproduction. Although the cause of the sliding noise is not fully understood despite various studies, it is believed that the vibration and heat generated at the sliding point between the magnetic tape and the rotating head play a major role. It is believed that there are.
（発明の目的）
本発明は上記のような事情に鑑みてなされたものであり
、単結晶フェライト製磁気へラドチップを用いる回転ヘ
ッド型ヘリカルスキャン方式の磁気記録再生装置におい
て、上記摺動ノイズの発生を低減することを目的とする
ものである。(Object of the Invention) The present invention has been made in view of the above-mentioned circumstances, and is intended to solve the problem of the occurrence of the above-mentioned sliding noise in a rotating head-type helical scan type magnetic recording/reproducing device using a single-crystal ferrite magnetic held tip. The purpose is to reduce the
（発明の構成）
本発明の磁気記録再生装置は、上記のような回転ヘッド
型ヘリカルスキャン方式の磁気記録再生装置において、
ヘッドチップを回転シリンダに固定するチップ台とヘッ
ドチップのテープ摺動面との間のヘッドチップ表面の少
なくとも一部に、弾性部材な被着したことを特徴とする
ものである。(Structure of the Invention) The magnetic recording and reproducing apparatus of the present invention is a rotating head type helical scan type magnetic recording and reproducing apparatus as described above.
The present invention is characterized in that an elastic member is attached to at least a portion of the head chip surface between the chip stand for fixing the head chip to the rotating cylinder and the tape sliding surface of the head chip.
（実施態様）
第１図は本発明の１実施態様によるヘリカルスキャン方
式の磁気記録再生装置の回転ヘッドを示すものであり、
該回転ヘッド１０は円筒状の回転シリンダ１１に、−例
として２個の磁気ヘッドチップ１２．１２が搭載されて
なる。これら磁気へラドチップ１２，１２゛は単結晶フ
ェライトから形成され、キれぞれチップ台１３，１３に
固定され、これらチップ台１３，１３がビス１４，１４
によって回転シリンダ１１に取り付けられている。(Embodiment) FIG. 1 shows a rotating head of a helical scan type magnetic recording and reproducing device according to an embodiment of the present invention.
The rotary head 10 includes, for example, two magnetic head chips 12, 12 mounted on a cylindrical rotary cylinder 11. These magnetic helad chips 12, 12' are made of single crystal ferrite and are fixed to chip stands 13, 13, respectively, and these chip stands 13, 13 are connected to screws 14, 14.
It is attached to the rotating cylinder 11 by.
第２図は上記回転ヘッド１０の磁気ヘッドチップ取付部
を拡大して示すものであり、図示されているように、チ
ップ台１３に固定された磁気ヘッドチップ１２には、そ
のコイル１５とテープ摺動面１２ａとの間の一部におい
て環状の弾性部材１６が被着されている。FIG. 2 shows an enlarged view of the magnetic head chip mounting portion of the rotary head 10. As shown in the figure, the magnetic head chip 12 fixed on the chip stand 13 has its coil 15 and tape slider. An annular elastic member 16 is attached to a portion between the movable surface 12a and the movable surface 12a.
この弾性部材１６は、例えばＪＩＳ硬度１゜〜９５程度
のネオプレンゴム等を好適に用いて形成されるが、勿論
その他公知の弾性材料から形成されてもよい。そしてこ
の環状の弾性部材１６は、あらかじめ環状に成型したも
のをテープ摺動面１２ａ側から圧入すること一ティング
したのち乾燥、固化させる等してヘッドチップ１２に被
着される。The elastic member 16 is preferably formed of, for example, neoprene rubber having a JIS hardness of about 1° to 95, but may of course be formed of other known elastic materials. The annular elastic member 16 is attached to the head chip 12 by press-fitting a previously formed annular member from the tape sliding surface 12a side, then drying and solidifying it.
次に上記構成の装置の作用、効果について述べる。標準
的なＶＨ８型ビデオチープレコータ（机下電器産業（株
）製ＮＶ−３５０ＯＮ）の磁気ヘッドチップ１２に、上
記環状の弾性部材１６（ＪＩＳ硬度７０のネオプレンゴ
ム製）を圧入によって被着し、該ビデオテープレコーダ
に良く消磁した標準タイプのビデオテープ（富士写真フ
ィルム（株）製Ｔ −１２０Ｅ）を装着して再生モード
に設定し、再゛、生プリアンプの出力信号の摺動ノイズ
を測定した。その測定結果を第３図において実線で示す
。また比較例として、上記ビデオテープレコーダの磁気
ヘッドチップ１２に弾性部材１６を被着する前に上記と
同様の測定を行なった結果を第３図において破線で示す
（なおこの第３図に示す測定結果は、アンプのノイズを
差し引いたものである）。Next, the functions and effects of the device having the above configuration will be described. The annular elastic member 16 (made of neoprene rubber with a JIS hardness of 70) was attached by press-fitting to the magnetic head chip 12 of a standard VH8 type video cheap recorder (NV-350ON manufactured by Kishita Denki Sangyo Co., Ltd.). A well-demagnetized standard type video tape (T-120E manufactured by Fuji Photo Film Co., Ltd.) was installed in the video tape recorder, set to playback mode, and the sliding noise of the output signal of the raw preamplifier was measured again. did. The measurement results are shown by solid lines in FIG. Furthermore, as a comparative example, the results of measurements similar to those described above performed before attaching the elastic member 16 to the magnetic head chip 12 of the video tape recorder are shown in broken lines in FIG. Results are minus amplifier noise).
上記第３図に明確に示されるように、弾性部材１６を被
着した本発明によるビデオテープレコーダにおいては、
比較例に比べ摺動ノイズが２〜４ｄＢ程度低減されてい
る。この摺動ノイズ低減効果は、ヘッドチップ１２の振
動が弾性部材１６に吸収されて生じるものと ゛考えら
れる。As clearly shown in FIG. 3 above, in the video tape recorder according to the present invention covered with the elastic member 16,
The sliding noise is reduced by about 2 to 4 dB compared to the comparative example. This sliding noise reduction effect is thought to be caused by the vibration of the head chip 12 being absorbed by the elastic member 16.
なお以上説明した実施態様においては環状の弾性部材１
６が用いられ、ヘッドチップ１２は外周全長に亘って弾
性部材１６により包被された状態となっているが、その
ようにしなくとも、チップ台１３とテープ摺動面１２ａ
との間のヘッドチップ１２０表面の少なくとも一部に弾
性部材が被着されていれば、摺動ノイズ低減効果が得ら
れる。例えば第４図の実施態様の回転ヘッド２０におい
ては、回転シリンダ１１に設けられたヘッドチップ配置
用切欠き２１内にあらかじめ弾性部材２２が充填され、
チップ台１３がビス１４によって回転シリンダ１１に固
定されると、ヘッドチップ１２０表面の一部が上記弾性
部材２２１Ｃ密着するようになっている。このような構
造の回転ヘッド２０を用いる磁気記録再生装置において
も、前述したよりな摺動ノイズ低減効果が同様に得られ
る。Note that in the embodiment described above, the annular elastic member 1
6 is used, and the head chip 12 is covered with the elastic member 16 over the entire length of the outer periphery.
If an elastic member is attached to at least a part of the surface of the head chip 120 between the head chip 120 and the head chip 120, an effect of reducing sliding noise can be obtained. For example, in the rotary head 20 of the embodiment shown in FIG. 4, an elastic member 22 is filled in advance in a head chip placement notch 21 provided in the rotary cylinder 11.
When the chip stand 13 is fixed to the rotating cylinder 11 with the screws 14, a part of the surface of the head chip 120 comes into close contact with the elastic member 221C. Even in a magnetic recording/reproducing device using the rotary head 20 having such a structure, the above-mentioned effect of further reducing sliding noise can be similarly obtained.
なお既述のように弾性部材は、チップ台とテープ摺動面
との間においてへラドチップ表面に被着されればよいが
、第２図に示されるように、ヘッドチップ１２のコイル
１５とテープ摺動面１２ａとの間においてヘッドチップ
１２０表面に被着されれば、特に顕著な摺動ノイズ低減
効果が得られる。 □
（発明の効果）
以上詳細に説明した通り本発明によれば、単結晶フェラ
イト製磁気へラドチップを備えるヘリカルスキャン方式
の磁気記録再生装置において発生しやすかった摺動ノイ
ズが、装置をほとんど複雑化することなく容易、確実に
低減されるようになる。As mentioned above, the elastic member may be attached to the surface of the Herad chip between the chip stand and the tape sliding surface, but as shown in FIG. If it is applied to the surface of the head chip 120 between the sliding surface 12a, a particularly remarkable sliding noise reduction effect can be obtained. □ (Effects of the Invention) As explained in detail above, according to the present invention, the sliding noise that is likely to occur in a helical scan type magnetic recording/reproducing device equipped with a single-crystal ferrite magnetic held tip can be reduced to almost no complexity. It can be easily and reliably reduced without having to do anything.
第１図は本発明の１実施態様を示す斜視図、第２図は上
記実施態様の一部を拡大して示す斜視図、
第３図は上記実施態様の摺動ノイズ測定結果を、従来装
置の摺動ノイズ測定結果と比較して示すグラフ、
第４図は本発明の他の実施態様を示す立面図である。
１０．２０・・・回転ヘッド １１・・・回転シリンダ
１２・・・磁気ヘッドチップ １３・・・チ ッ フ台
１６．２２・・・弾性部材
９１１ 図
１〇
１
８２図
１１３図
１２３４５
■汲秋（ＭＨｚ）
第 ４ 図FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an enlarged perspective view of a part of the above embodiment, and FIG. FIG. 4 is an elevational view showing another embodiment of the present invention. 10.20... Rotating head 11... Rotating cylinder 12... Magnetic head chip 13... Chip stand 16.22... Elastic member 911 Figure 1〇1 82 Figure 113 Figure 12345 (MHz) Figure 4
Claims (1)
搭載してなる回転ヘッドを備え。 たヘリカルスキャン方式の磁気記録再生装置において、
前記へラドチップを固定するチップ台とへラドチップの
テープ摺動面との間のヘッドチップ表面の少なくとも一
部に、弾性部材な被着したことを特徴とする磁気記録再
生装置。[Claims] A rotary head comprising a magnetic herad chip made of single-crystal ferrite mounted on a rotary cylinder. In a helical scan type magnetic recording and reproducing device,
A magnetic recording/reproducing device characterized in that an elastic member is attached to at least a part of the head chip surface between the chip stand for fixing the Herad chip and the tape sliding surface of the Herad chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18558183A JPS6079512A (en) | 1983-10-04 | 1983-10-04 | Magnetic recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18558183A JPS6079512A (en) | 1983-10-04 | 1983-10-04 | Magnetic recording and reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6079512A true JPS6079512A (en) | 1985-05-07 |
Family
ID=16173307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18558183A Pending JPS6079512A (en) | 1983-10-04 | 1983-10-04 | Magnetic recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6079512A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6453306A (en) * | 1987-07-30 | 1989-03-01 | Philips Nv | Magnetic head |
| JPS6482316A (en) * | 1987-09-24 | 1989-03-28 | Sanyo Electric Co | Magnetic head device |
| JPH01102715A (en) * | 1987-10-15 | 1989-04-20 | Sanyo Electric Co Ltd | Magnetic head device |
| FR2782570A1 (en) * | 1998-08-21 | 2000-02-25 | Commissariat Energie Atomique | A chip with a magnetic head or heads is secured by gluing it into a housing which is formed in the base, a cover or partially in both the base and the cover |
-
1983
- 1983-10-04 JP JP18558183A patent/JPS6079512A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6453306A (en) * | 1987-07-30 | 1989-03-01 | Philips Nv | Magnetic head |
| JPS6482316A (en) * | 1987-09-24 | 1989-03-28 | Sanyo Electric Co | Magnetic head device |
| JPH01102715A (en) * | 1987-10-15 | 1989-04-20 | Sanyo Electric Co Ltd | Magnetic head device |
| FR2782570A1 (en) * | 1998-08-21 | 2000-02-25 | Commissariat Energie Atomique | A chip with a magnetic head or heads is secured by gluing it into a housing which is formed in the base, a cover or partially in both the base and the cover |
| WO2000011666A1 (en) * | 1998-08-21 | 2000-03-02 | Alditech | Assembly comprising at least one embedded chip with magnetic head(s) |
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