JPH0350321B2 - - Google Patents
Info
- Publication number
- JPH0350321B2 JPH0350321B2 JP8444382A JP8444382A JPH0350321B2 JP H0350321 B2 JPH0350321 B2 JP H0350321B2 JP 8444382 A JP8444382 A JP 8444382A JP 8444382 A JP8444382 A JP 8444382A JP H0350321 B2 JPH0350321 B2 JP H0350321B2
- Authority
- JP
- Japan
- Prior art keywords
- tape
- width direction
- head
- drum
- heads
- 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
- 238000010586 diagram Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/06—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using web-form record carriers, e.g. tape
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
【発明の詳細な説明】
この発明は回転ヘツドによつて磁気テープ上に
斜めの磁気トラツクを順次形成してビデオ信号、
オーデイオPCM信号等の情報信号を記録し、あ
るいはこれを再生する装置に関し、特にテープの
往復記録再生ができるようにすると共に、回転ヘ
ツドとテープの接触開始点でのヘツドタツチを安
定にしてテープダメージを減らすようにしたもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention uses a rotating head to sequentially form diagonal magnetic tracks on a magnetic tape to generate video signals.
Regarding devices that record or reproduce information signals such as audio PCM signals, in particular, it is possible to record and reproduce back and forth tapes, and to stabilize the head touch at the point where the rotating head starts contacting the tape to prevent tape damage. This is something I tried to reduce.
以下、この発明の一例を図を参照しながら説明
しよう。 Hereinafter, an example of this invention will be explained with reference to the drawings.
第１図はこの発明装置の要部である回転ヘツド
装置の一例を示すもので、この例は例えばヘツド
が180度の角間隔を保つて２個設けられ、テープ
が案内ドラム対してほぼ180度の角範囲分に斜め
に巻きつけられるようにされている。図におい
て、１は案内ドラムであり、２はテープである。
案内ドラム１は例えば上下の固定ドラム１Ａ，１
Ｂと、この上下の固定ドラム１Ａ，１Ｂの間に介
挿されると共に２個の回転ヘツドHA及びHBが
取り付けられ例えば30Hzで回転する様にされた中
ドラム１Ｃから成つている。そして、この例の場
合、固定の下ドラム１Ｂにはテープの巻き付け傾
き角を案内するリード部分３がドラムにおいて段
差とされて設けられている。この場合、テープ２
は図の矢印４の方向に移送されるとすればテープ
２は案内ドラム１に対して徐々に上昇する様にリ
ード３によつて案内される（以下これを上昇リー
ドと言う）。 FIG. 1 shows an example of a rotary head device which is the main part of the device of this invention. In this example, two heads are provided with an angular interval of 180 degrees, and the tape is held at an angle of approximately 180 degrees with respect to the guide drum. It is designed so that it can be wrapped diagonally around the corner range of . In the figure, 1 is a guide drum and 2 is a tape.
The guide drum 1 includes, for example, upper and lower fixed drums 1A, 1.
A middle drum 1C is inserted between the upper and lower fixed drums 1A and 1B, and has two rotary heads HA and HB attached thereto and rotates at, for example, 30 Hz. In this example, the fixed lower drum 1B is provided with a lead portion 3 which guides the tape winding angle and is stepped on the drum. In this case, tape 2
If the tape 2 is transported in the direction of the arrow 4 in the figure, the tape 2 is guided by the lead 3 so as to gradually rise relative to the guide drum 1 (hereinafter referred to as the rising lead).
そして、この場合、テープの幅方向の上端，下
端をひつくり返してテープ２に往復記録あるいは
往復再生ができるようにされる。このため、第２
図に示すようにテープ２はその幅方向に２分割さ
れて領域と領域とに分けられる。そして、テ
ープ２の一方向の移送に際して一方の領域に斜め
のトラツクを形成するように回転ヘツドHA，
HBが走査するようにされて、往復で例えば第２
図に示すように領域，でヘツドHA，HBが
走査するようにされる。 In this case, the upper and lower ends in the width direction of the tape are turned over so that reciprocating recording or reciprocal reproduction can be performed on the tape 2. For this reason, the second
As shown in the figure, the tape 2 is divided into two in the width direction and divided into regions. Then, when the tape 2 is transferred in one direction, the rotating head HA is moved so as to form a diagonal track in one area.
The HB is made to scan, e.g.
As shown in the figure, the heads HA and HB are scanned in the area.
ここで、この例ではテープ２の一方向の移送に
際してテープ２の幅方向の下半分となる領域が走
査される。したがつて、テープ２は案内ドラム１
の180゜角範囲強に巻き付けられるも、回転ヘツド
HA，HBはテープ２の幅方向の一端から他端ま
での間を走査するようにするものではなく、第１
図に示すように回転ヘツドHA，HBがテープ２
の幅方向のほぼ中央の位置とテープ２の幅方向の
一端との間を走査するように巻き付けられる。さ
らに、この発明では第１図の矢印５で示すように
ヘツドHA，HBはテープ２の幅方向のほぼ中央
の位置からテープ２に接触し始めるような方向に
回転するようにされている。 Here, in this example, when the tape 2 is transferred in one direction, a region that is the lower half of the tape 2 in the width direction is scanned. Therefore, the tape 2 is the guide drum 1
Although it can be wrapped over a 180° angle range, the rotating head
HA and HB are not designed to scan from one end of the tape 2 in the width direction to the other;
As shown in the figure, rotating heads HA and HB are connected to tape 2.
The tape 2 is wound so as to scan between the substantially central position in the width direction of the tape 2 and one end of the tape 2 in the width direction. Further, in the present invention, the heads HA and HB are rotated in a direction such that they begin to come into contact with the tape 2 from approximately the center position in the width direction of the tape 2, as shown by the arrow 5 in FIG.
さらに詳述するに、ヘツドHA，HBによつて
テープ２上に信号が記録される場合を考えると、
テープ２が、領域ドラム１の下側にくるように
巻き付けられているときは、テープ２上には第２
図に示すように領域に、回転ヘツドHA，HB
が第２図の矢印５Ａで示すようにテープ２の幅方
向のほぼ中央位置から領域の端縁側に向かつて
走査することにより、それぞれ斜めの磁気トラツ
クT1，T2，T3……が形成されて信号が記録され
る。 To explain in more detail, consider the case where signals are recorded on tape 2 by heads HA and HB.
When the tape 2 is wound on the lower side of the area drum 1, there is a second layer on the tape 2.
Rotating heads HA, HB in the area as shown in the figure.
As shown by the arrow 5A in FIG. 2, the magnetic tracks T 1 , T 2 , T 3 , . . . are formed as diagonal magnetic tracks T 1 , T 2 , T 3 ... signal is recorded.
次に、テープ２の幅方向の上端側と下端側をひ
つくり返して案内ドラム１に対して領域が下側
になるように巻き付けたときは、第２図でテープ
２の上側の領域において回転ヘツドHA，HB
が第２図の矢印５Ｂで示すようにテープ２の幅方
向のほぼ中央位置からこの領域の端縁側に向か
つて走査することにより、それぞれ斜めの磁気ト
ラツクTA，TB，TC……が形成されて信号が記録
される。 Next, when the upper and lower ends of the tape 2 in the width direction are turned over and wound around the guide drum 1 so that the area is on the lower side, the upper area of the tape 2 in FIG. HA, HB
As shown by arrow 5B in FIG. 2, the magnetic tracks T A , T B , T C . . . A signal is recorded.
こうして往復記録がなされ、往復再生も同様に
してなされる。 In this way, reciprocating recording is performed, and reciprocating reproduction is also performed in the same manner.
以上の例は、テープ２を案内するリード３は上
昇リードの場合で、ヘツドHA，HBはテープ２
の移送方向にこれを追いかけるような場合である
が、テープ２の移送方向が第１図の矢印４とは逆
向きであつて、リード３は下降リードで、ヘツド
HA，HBがテープ２の移送方向に逆らうような
場合でもこの発明は適用できる。要は、ヘツド
HA，HBがテープ２の幅方向の中ほどの部分か
らテープ２の幅方向の一方の端部に向かつて走査
するようにすればよい。 In the above example, lead 3 that guides tape 2 is a rising lead, and heads HA and HB are tape 2.
In this case, the tape 2 is transported in the opposite direction to the arrow 4 in FIG. 1, and the lead 3 is a descending lead and the head
The present invention can be applied even when HA and HB are opposite to the direction in which the tape 2 is transported. In short, the head
HA and HB may be scanned from the middle part of the tape 2 in the width direction toward one end of the tape 2 in the width direction.
以上のようにしてこの発明によれば、ヘツドは
テープの幅方向の中央部から幅方向の一端部分に
渡つて走査するようになり、テープに対するヘツ
ドの接触が良好なものとなり、ヘツドがテープに
与えるダメージも少なくなる。 As described above, according to the present invention, the head scans from the center in the width direction of the tape to one end in the width direction, and the contact of the head with the tape is good. It also deals less damage.
即ち、第３図に示すように、従来の片道記録な
いし再生のようにテープの幅方向の一端から他端
に渡つてヘツドがその180度角範囲の部分におい
て走査するとき、回転ヘツドが第３図の太線矢印
のように図の下端部から上端部に渡つて横切ると
すれば、テープ下端においてヘツドがテープをひ
つかけ気味に走向し、テープエツジ及びヘツドチ
ツプを著しく痛める。これに対し、この発明によ
ればテープの幅方向の中央部からヘツド走査が始
まるからそのようなことはないのである。 That is, as shown in FIG. 3, when the head scans over a 180 degree angle range from one end of the tape in the width direction to the other end in conventional one-way recording or playback, the rotary head moves to the third end. If the head crosses from the lower end to the upper end of the figure as indicated by the thick arrow in the figure, the head will tend to catch the tape at the lower end of the tape, seriously damaging the tape edge and head tip. On the other hand, according to the present invention, such a problem does not occur because head scanning starts from the center in the width direction of the tape.
また、第３図のテープの下端側においては、第
４図において、テープ２のドラム１の巻き付け部
分の幅方向の上端側と同様に、ドラムの回転に従
つて、第３図の矢印６で示すように空気がテープ
の磁性面側とベース面側の両面に分かれて流れ込
み、テープを振動させる。このため、第３図のよ
うなテープの幅方向の端部から端部へのヘツドの
走査であると、この空気流入部分でのヘツドタツ
チが悪いと同時にヘツドチツプがテープに与える
メージも大きく、また逆にヘツドチツプも著しく
摩耗するおそれがある。これに対し、この発明に
おいては、ヘツドHA，HBはテープの幅方向の
ほぼ中央部からテープに接触し始めるようにテー
プはドラムに巻き付けられるから、第４図からも
明らかなように、ヘツドHA，HBがテープ２に
対接し始める部分では、空気は全てテープ２とド
ラム１との間のエアーフイルム層に流れ込み、テ
ープ２がこの部分で振動するようなことはなく、
安定なヘツドタツチとなる。 Further, on the lower end side of the tape in FIG. 3, as in the upper end side in the width direction of the tape 2 wrapped around the drum 1 in FIG. As shown, air flows into both sides of the tape, the magnetic side and the base side, causing the tape to vibrate. For this reason, when the head scans from end to end in the width direction of the tape as shown in Figure 3, the head touch is poor at this air inlet area, and at the same time the image that the head tip gives to the tape is large, and vice versa. The head tip may also wear out considerably. On the other hand, in this invention, the tape is wound around the drum so that the heads HA and HB start contacting the tape from approximately the center in the width direction of the tape, so as is clear from FIG. , HB starts to come into contact with the tape 2, all the air flows into the air film layer between the tape 2 and the drum 1, and the tape 2 does not vibrate at this part.
It becomes a stable head touch.
第１図はこの発明の一例の回転ヘツド装置の一
例を示す図、第２図はその記録トラツクパターン
を示す図、第３図及び第４図はこの発明の効果を
説明するための図である。
１は案内ドラム、２はテープ、HA及びHBは
回転ヘツドである。
FIG. 1 is a diagram showing an example of a rotary head device according to the present invention, FIG. 2 is a diagram showing its recording track pattern, and FIGS. 3 and 4 are diagrams for explaining the effects of the present invention. . 1 is a guide drum, 2 is a tape, and HA and HB are rotating heads.
Claims (1)
の各領域に一方向のテープ送りについて回転ヘツ
ドが上記テープ上を斜めに走査して情報信号を記
録或いは再生するようにして往復記録ないし往復
再生ができるようにした装置において、常に上記
回転ヘツドが上記テープの幅方向の中央部から走
査を開始するようにした記録ないし再生装置。1. A tape is divided into two areas in the width direction, and a rotary head scans diagonally over the tape to feed the tape in one direction in each area to record or reproduce information signals, thereby performing reciprocating recording or reciprocating playback. 1. A recording or reproducing device, wherein the rotary head always starts scanning from the center of the tape in the width direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8444382A JPS58200404A (en) | 1982-05-19 | 1982-05-19 | Recording or reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8444382A JPS58200404A (en) | 1982-05-19 | 1982-05-19 | Recording or reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58200404A JPS58200404A (en) | 1983-11-22 |
| JPH0350321B2 true JPH0350321B2 (en) | 1991-08-01 |
Family
ID=13830734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8444382A Granted JPS58200404A (en) | 1982-05-19 | 1982-05-19 | Recording or reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58200404A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61187156A (en) * | 1985-02-14 | 1986-08-20 | Sony Corp | Tape recorder |
| KR940001564B1 (en) * | 1991-08-31 | 1994-02-24 | 삼성전자 주식회사 | Magnetic recording & reproducing device |
-
1982
- 1982-05-19 JP JP8444382A patent/JPS58200404A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58200404A (en) | 1983-11-22 |
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