JPS6222221A - Cleaning device - Google Patents
Cleaning deviceInfo
- Publication number
- JPS6222221A JPS6222221A JP16059585A JP16059585A JPS6222221A JP S6222221 A JPS6222221 A JP S6222221A JP 16059585 A JP16059585 A JP 16059585A JP 16059585 A JP16059585 A JP 16059585A JP S6222221 A JPS6222221 A JP S6222221A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic tape
- magnetic
- cleaning member
- acute angle
- magnetic 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.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 34
- 230000001154 acute effect Effects 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 5
- -1 dirt Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/50—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges
- G11B23/502—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges of tape carriers
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、磁気ヘッドを内蔵する回転ドラムに巻回され
た磁気テープ上の付着物を除去し磁気テープと磁気ヘッ
ドの当接状態を安定にするクリーニング装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention removes deposits on a magnetic tape wound around a rotating drum containing a magnetic head, thereby stabilizing the state of contact between the magnetic tape and the magnetic head. The present invention relates to a cleaning device.
従来の技術
近年、磁気記録再生装置は、オーディオあるいはビデオ
等のメモリー装置として広く活用されている。2. Description of the Related Art In recent years, magnetic recording and reproducing devices have been widely used as memory devices for audio, video, and the like.
記録方式もアナログ方式からデジタル方式に移行しつつ
あり音あるいは画像の高品質化への対応が活発に行われ
ている。The recording method is also shifting from analog to digital, and efforts are being made to improve the quality of sound and images.
また、垂直記録方式等の提案もなされこれからの磁気記
録は高密度化に向けて様々な検討が行われている。In addition, perpendicular recording systems and the like have been proposed, and various studies are being conducted to increase the density of magnetic recording in the future.
高密度化に際しては磁気ヘッドと磁気テープとの当接状
態の安定化は重点課題であり以下に回転ドラム方式のＶ
ＴＲを例にとり問題点を述べる。When increasing density, stabilizing the contact state between the magnetic head and magnetic tape is an important issue.
The problems will be explained using TR as an example.
第４図は従来の回転ドラム方式ＶＴＲの磁気ヘッドと磁
気テープの当接部分を示すもので・ある。FIG. 4 shows the contact area between the magnetic head and magnetic tape of a conventional rotating drum type VTR.
磁気ヘッド１は、基台２に接着され信号伝達用の巻線３
が巻回されている。A magnetic head 1 is attached to a base 2 and has a winding 3 for signal transmission.
is wound.
基台２はネジ４により回転ドラム６に固定されており、
回転ドラム５には磁気テープ６がヘリカル状に巻回され
回転ドラム６よりわずかに突出した磁気ヘッド１にて磁
気テープ６との信号伝達を行っている。The base 2 is fixed to the rotating drum 6 with screws 4,
A magnetic tape 6 is helically wound around the rotating drum 5, and signals are transmitted to and from the magnetic tape 6 by a magnetic head 1 slightly protruding from the rotating drum 6.
上記の構成によると、磁気テープ６と磁気ヘッド１の当
接が数ｍ／ｓｅｃから数十Ｏｎ ／ Ｓｅｃと高相対速
度で行われるため各々からの摩耗粉が生じる。According to the above configuration, since the magnetic tape 6 and the magnetic head 1 come into contact at a high relative speed of several m/sec to several tens of on/sec, abrasion powder is generated from each.
また、空気中のチリやホコリが磁気テープ６の走行系な
どを経て、あるいは直接磁気テープ６に付着する。Further, dirt and dust in the air adheres to the magnetic tape 6 through the running system of the magnetic tape 6 or directly.
これら摩耗粉やチリ、ホコリ等の付着物７は高相対速度
で接触する磁気テープ６と磁気ヘッド１との接触不安定
要因となり、例えば第４図で回転ドラムが矢印入方向に
回転する場合、付着物７が磁気ヘッド１の先行側に付着
しドロップアウトやスペーシング等を発生させ再生出力
の低下やＳハ劣化等の問題を生じる。These deposits 7 such as abrasion particles, dirt, and dust become a cause of unstable contact between the magnetic tape 6 and the magnetic head 1, which are in contact at a high relative speed. For example, when the rotating drum rotates in the direction indicated by the arrow in FIG. The deposits 7 adhere to the leading side of the magnetic head 1 and cause dropouts, spacing, etc., resulting in problems such as a reduction in reproduction output and deterioration of S.
上記問題を解決するため、例えば実公昭５８−１４８７
２４号に示されるようなものがある。In order to solve the above problem, for example,
There is something like the one shown in No. 24.
第５図は、実公昭５８−１４８７２４号に記述されたも
のであり、回転ドラム８と固定ドラム９間より突出した
磁気ヘッド１ｏに付着した異物を空気圧縮ケース１１よ
り吐き出す圧縮空気によって除去するものである。FIG. 5 shows a device described in Japanese Utility Model Publication No. 148724/1983, in which foreign matter attached to a magnetic head 1o protruding from between a rotating drum 8 and a stationary drum 9 is removed by compressed air discharged from an air compression case 11. It is.
発明が解決し上うとする問題点
上記従来の構成では、空気圧縮ケース１１の設置に伴う
装置の大型化が避けられない。また、磁気ヘッド１０に
付着した異物を除去するには大きな圧力を必要としその
ため磁気ヘッド１ｏの破損等を生じる危険もある。Problems to be Solved by the Invention In the conventional configuration described above, the size of the device inevitably increases due to the installation of the air compression case 11. Furthermore, removing foreign matter adhering to the magnetic head 10 requires a large amount of pressure, which may cause damage to the magnetic head 1o.
また、磁気テープへの付着物には何ら効果がないもので
ある。Further, it has no effect on substances that adhere to the magnetic tape.
本発明は、磁気ヘッドと磁気テープとが当接する以前に
磁気テープ上の異物を除去するクリーニング装置を提供
するものである。The present invention provides a cleaning device that removes foreign matter from a magnetic tape before the magnetic head and the magnetic tape come into contact with each other.
問題点を解決するための手段
上記問題点を解決する本発明の技術的手段は、磁気ヘッ
ドと磁気テープとの当接に先行して磁気テープに当接す
る鋭角部を有するクリーニング部材を磁気ヘッド近傍に
可動自在に配設したものである。Means for Solving the Problems The technical means of the present invention for solving the above-mentioned problems is to remove a cleaning member having an acute angle that contacts the magnetic tape in the vicinity of the magnetic head prior to the contact between the magnetic head and the magnetic tape. It is movably arranged in the
作 用 この手段による作用は次のようになる。For production The effect of this means is as follows.
すなわち、磁気ヘッドと磁気テープの当接に先行して磁
気テープに当接する鋭角部を有するクリーニング部材に
より磁気テープに付着した摩耗粉やチリ、ホコリを除去
するようにしたものである。That is, prior to the contact between the magnetic head and the magnetic tape, abrasion particles, dirt, and dust adhering to the magnetic tape are removed by a cleaning member having an acute angle that contacts the magnetic tape.
また、磁気テープに対し可動自在に設けることによりク
リーニング部材が強い圧力で磁気テープに当接し磁気テ
ープを傷つけないよう配慮すると共に、磁気テープと磁
気ヘッドの当接圧力を低下させすぎないようにしたもの
である。In addition, by providing the cleaning member in a movable manner relative to the magnetic tape, care was taken to prevent the cleaning member from contacting the magnetic tape with strong pressure and damaging the magnetic tape, and also to prevent the contact pressure between the magnetic tape and the magnetic head from decreasing too much. It is something.
実施例
以下本発明の一実施例を添付図面にもとづいて説明する
。EXAMPLE Hereinafter, an example of the present invention will be described based on the accompanying drawings.
第１図において１は磁気ヘッド、３は信号伝達用巻線Ａ
はヘッド基台１２を回転ドラム６に固定するネジ、６は
回転ドラム５外周に巻回された磁気テープ上
ヘッド基台１２には一対のスライド軸１３．１３’が摺
動可能に嵌合されている。In Fig. 1, 1 is a magnetic head, 3 is a signal transmission winding A
6 is a screw for fixing the head base 12 to the rotating drum 6, and 6 is a magnetic tape wound around the outer periphery of the rotating drum 5. A pair of slide shafts 13 and 13' are slidably fitted into the head base 12. ing.
スライド軸１３ 、１３’の一端にはスライド貴規制用
のネジ部１４ 、１４’があり固定ナツト１６゜１６′
が螺合されている。At one end of the slide shafts 13, 13' there are threaded parts 14, 14' for regulating the slide, and a fixing nut 16° 16'
are screwed together.
スライド軸１３ 、１３’の他端には両端に鋭角部１６
、１６’を有したセラミック材料などの高硬度を有す
る材料で構成されたりＩ７− ニング部材１７が固定さ
れている。The other ends of the slide shafts 13 and 13' have acute angle portions 16 at both ends.
, 16' is made of a material having high hardness, such as a ceramic material, and a lining member 17 is fixed thereto.
クリーニング部材１７とヘッド基台１２の間にはスライ
ド軸１３ 、１３’に嵌合されたバネ部材１８ 、１８
’がある。Between the cleaning member 17 and the head base 12 are spring members 18, 18 fitted to the slide shafts 13, 13'.
'There is.
１９は磁気ヘッド１を突出させるための開口部であり、
２ｏは回転ドラム６に設けられた窓部である。19 is an opening for protruding the magnetic head 1;
2o is a window provided in the rotating drum 6.
２１は回転ドラム５とほぼ同径、同軸上に設けられた固
定ドラムである。Reference numeral 21 denotes a fixed drum having approximately the same diameter and coaxially provided as the rotating drum 5.
以上のように構成されたクリーニング装置において、ク
リーニング部材１７の回転ドラム６外周方向への突出し
量は固定ナラ） １５ 、１５’の締付は量により調整
される。In the cleaning device configured as described above, the amount of protrusion of the cleaning member 17 toward the outer circumferential direction of the rotating drum 6 is fixed, and the tightening of the nuts 15 and 15' is adjusted by the amount.
また、バネ部材１８ 、１８’の附勢力は磁気テープ６
の張力が走行時における所定の値においてクリーニング
部材１７の鋭角部１６が回転ドラム５よりわずか突出し
、磁気テープ６に当接する状態でつシ合うよう設定され
ている。Further, the biasing force of the spring members 18 and 18' is applied to the magnetic tape 6.
When the tension of the cleaning member 17 is at a predetermined value during running, the acute angle portion 16 of the cleaning member 17 slightly protrudes from the rotating drum 5 and is set so as to come into contact with the magnetic tape 6.
このため、磁気テープ６に付着した摩耗粉やテリ・ホコ
リは第１図において鋭角部１６によシ除去される。For this reason, abrasion powder, dirt, and dust adhering to the magnetic tape 6 are removed by the acute angle portion 16 in FIG.
よって磁気ヘッド１が磁気テープ６と当接する時点では
磁気テープ６はクリーンな状態になっているものである
。Therefore, at the time when the magnetic head 1 comes into contact with the magnetic tape 6, the magnetic tape 6 is in a clean state.
ま次、磁気テープ６が張力変動を有してもクリーニング
部材１７はバネ部材１８ 、１８’によシ可動自在であ
るため変動分が吸収できると共に常に磁気テープ６に安
定して当接させておくことができる。Secondly, even if the magnetic tape 6 has tension fluctuations, the cleaning member 17 is movable by the spring members 18 and 18', so the fluctuations can be absorbed and the cleaning member 17 can always be kept in stable contact with the magnetic tape 6. You can leave it there.
第２図は、第１図のりＩＪ ＋ニング部材１７の鋭角部
１６を磁気ヘッド１走査方向（矢印Ｂ）に対し所定角度
θ傾斜させたものである。In FIG. 2, the acute angle portion 16 of the gluing member 17 of FIG. 1 is inclined at a predetermined angle θ with respect to the scanning direction of the magnetic head 1 (arrow B).
本構成であれば鋭角部２２にて除去された付着物は鋭角
部２２近傍に堆積することなく斜面に沿ってスムースに
移動し排除されるものである。With this configuration, the deposits removed at the acute angle portion 22 are smoothly moved along the slope and removed without being deposited near the acute angle portion 22.
第３図は、上記第２図における鋭角部２２をクリーニン
グ部材１７に複数本の溝を鋭角部２３として形成し初期
°の鋭角部２３ａで除去し得なかった場合、第２の鋭角
部２３ｂで除去させ付着物の除去をより確実に行うよう
構成したものである。FIG. 3 shows that when the acute angle portion 22 in FIG. 2 cannot be removed by forming a plurality of grooves as the acute angle portion 23 in the cleaning member 17 and being unable to be removed by the initial acute angle portion 23a, a second acute angle portion 23b is removed. This structure is designed to more reliably remove deposits.
なお前記第１図、第２図、第３図の鋭角部（１６、１６
’、２２．２２’、２３．２３’）を左右に点対称で設
けた理由は、片側の鋭角部（１６゜２２．２３）が摩耗
した場合、クリーニング部材を反転させても使用可能と
なるように、また組立て時の方向性を排除し組立て性を
向上させるためである。Note that the acute angle portions (16, 16
', 22.22', 23.23') are provided point-symmetrically on the left and right, so that if the acute angle part (16°22.23) on one side wears out, it can be used even if the cleaning member is reversed. This is also to improve the ease of assembly by eliminating the need for direction during assembly.
発明の効果
本発明は、磁気ヘッドと磁気テープとが当接するのに先
行して磁気テープと当接する鋭角部を有するクリーニン
グ部材を磁気ヘッド近傍に可動自在に配設したため、磁
気テープの付着物（摩耗粉やチリ、ホコリなど）が確実
に除去できると共に磁気テープに対し無理な力が作用し
ないクリーニングが可能であシ、磁気テープの付着物に
起因するドロップアウト、スペーシング損失に伴う出力
低下、Ｓ／Ｎ劣下が軽減され高密度化が図れるものであ
る。Effects of the Invention In the present invention, a cleaning member having an acute angle portion that comes into contact with the magnetic tape prior to the contact between the magnetic head and the magnetic tape is movably disposed near the magnetic head. It is possible to reliably remove abrasion powder, dirt, dust, etc., and to perform cleaning without applying excessive force to the magnetic tape.It also eliminates dropouts caused by deposits on the magnetic tape, output reduction due to spacing loss, etc. This reduces S/N deterioration and allows for higher density.
第１図（−）は本発明の一実施例におけるクリーニング
装置の正面図、（ｂ）はその側面図、第２図は本発明の
第２の実施例のクリーニング部材の形状を示す正面図、
第３図０は本発明の第３の実施例におけるクリーニング
部材の形状を示す正面図、（ｂ）はその側面図、第４図
は従来の磁気ヘッドと磁気テープ当接状態を示す正面図
、第５図は従来のクリ−ニング装置を示す正面図である
。
１・・・・・・磁気ヘッド、６・・・・・・磁気テープ
、１３゜１３′・・・・・・スライド軸、１８．１６’
、２２．２２’。
２３．２３′−・・・・・鋭角部、１７・・・・・・ク
リーニング部材、１８・・・・・・バネ部材。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名ノ７
−−−クリー二ング＃Ａ才
＜ｃｔ）
／６−−−ノ（冬普伜４丁（ト）
ｌｑ −開口舒ｌ
第３図
第４図 １−磁気ヘッド６−−一揮を気
テープ
嬉 、 、！ｌ １
０−−一砿九へ、、ド／Ｉ−一一空、気圧鋪ケ一人FIG. 1 (-) is a front view of a cleaning device in one embodiment of the present invention, (b) is a side view thereof, and FIG. 2 is a front view showing the shape of a cleaning member in a second embodiment of the present invention.
FIG. 30 is a front view showing the shape of a cleaning member in a third embodiment of the present invention, (b) is a side view thereof, and FIG. 4 is a front view showing a state in which a conventional magnetic head and a magnetic tape are in contact. FIG. 5 is a front view showing a conventional cleaning device. 1...Magnetic head, 6...Magnetic tape, 13°13'...Slide shaft, 18.16'
, 22.22'. 23.23'--Acute angle portion, 17...Cleaning member, 18...Spring member. Name of agent: Patent attorney Toshio Nakao and 1 other person No.7
---Cleaning #A<ct)
/6---ノ
1-Magnetic head 6--Open the tape, ,! l 1
0--Ichito 9,, Do/I-11 air, atmospheric pressure ke one person
Claims (3)
ドラムに巻回された磁気テープとの当接に際し、前記磁
気ヘッドの走査方向に先行して磁気テープに当接する鋭
角部を有したクリーニング部材を磁気ヘッド近傍に可動
自在に配設したことを特徴とするクリーニング装置。(1) Cleaning having an acute angle portion that contacts the magnetic tape in advance in the scanning direction of the magnetic head when the magnetic head built into the rotating drum contacts the magnetic tape wound around the rotating drum. A cleaning device characterized in that a member is movably disposed near a magnetic head.
に対し傾斜させて設けたことを特徴とする特許請求の範
囲第１項に記載のクリーニング装置。(2) The cleaning device according to claim 1, wherein the acute angle portion of the cleaning member is inclined with respect to the scanning direction of the magnetic head.
て形成したことを特徴とする特許請求の範囲第２項に記
載のクリーニング装置。(3) The cleaning device according to claim 2, wherein the acute inclined portion of the cleaning member is formed as a plurality of grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16059585A JPS6222221A (en) | 1985-07-19 | 1985-07-19 | Cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16059585A JPS6222221A (en) | 1985-07-19 | 1985-07-19 | Cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6222221A true JPS6222221A (en) | 1987-01-30 |
Family
ID=15718346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16059585A Pending JPS6222221A (en) | 1985-07-19 | 1985-07-19 | Cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6222221A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2623041A1 (en) * | 1987-10-16 | 1989-05-12 | Sony Corp | LONGITUDINAL ANALYSIS SYSTEM FOR A TAPE AND DRUM RECORDING / PLAYING APPARATUS, ESPECIALLY FOR A VCR |
-
1985
- 1985-07-19 JP JP16059585A patent/JPS6222221A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2623041A1 (en) * | 1987-10-16 | 1989-05-12 | Sony Corp | LONGITUDINAL ANALYSIS SYSTEM FOR A TAPE AND DRUM RECORDING / PLAYING APPARATUS, ESPECIALLY FOR A VCR |
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