JPS5963046A - Magnetic recording and reproducing device - Google Patents
Magnetic recording and reproducing deviceInfo
- Publication number
- JPS5963046A JPS5963046A JP57172207A JP17220782A JPS5963046A JP S5963046 A JPS5963046 A JP S5963046A JP 57172207 A JP57172207 A JP 57172207A JP 17220782 A JP17220782 A JP 17220782A JP S5963046 A JPS5963046 A JP S5963046A
- Authority
- JP
- Japan
- Prior art keywords
- tape
- lower fixed
- drums
- drum
- elliptical cylindrical
- 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
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/60—Guiding record carrier
- G11B15/61—Guiding record carrier on drum, e.g. drum containing rotating heads
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は例えば回転ヘッド方式のPCMテープレコーダ
、セグメント方式のビデオテープレコーダ等のヘリカル
スキャン方式磁気記録再生装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a helical scan type magnetic recording/reproducing apparatus such as a rotary head type PCM tape recorder or a segment type video tape recorder.
背量技術とその問題点
従来ヘリカルスキャン方式の磁気記録再生装置、例えば
ビデオテープレコーダ(VTR)等においては磁気テー
プのローディング機構としては所謂U形、Ω形、M形、
α形成いはμ形等が採用されているが、いずれの場合も
磁気テープは回転ヘッドドラムに対してヘリカル状にロ
ーディングするように構成されているため回転ヘッドド
ラムに対する入口側と出口側では段差が生じ、この段差
をテープリール(ハブ)との間において解消するために
ローディングまでのテープ走行距離を長(すると共にロ
ーディング機構の各テープガイドを傾斜させることによ
り磁気テープの段差を修正するように構成していたので
磁気テープの回転ヘッドドラムに対するローディングセ
ットまでに時間を要し記録再生時の即応性に難点があり
又ローディング機構A構が複雑で比較的大型になりコス
ト高になると共に磁気テープに捩り方向のテンションが
作用しイ1代気テープ自体に悪影響を与える等の不都合
があった。Back weight technology and its problems In conventional helical scan type magnetic recording and reproducing devices, such as video tape recorders (VTRs), the magnetic tape loading mechanisms are of the so-called U-shape, Ω-shape, M-shape, etc.
The α-form or the μ-form is used, but in either case, the magnetic tape is configured to be loaded onto the rotating head drum in a helical manner, so there is a difference in level between the entrance and exit sides of the rotating head drum. In order to eliminate this level difference between the magnetic tape and the tape reel (hub), the tape travel distance before loading is increased (and the level difference in the magnetic tape is corrected by tilting each tape guide of the loading mechanism). Because of this structure, it takes time to load and set the magnetic tape to the rotating head drum, making it difficult to respond quickly during recording and playback.Moreover, the loading mechanism A is complex and relatively large, resulting in high costs and the magnetic tape There was a problem that tension in the torsional direction was applied to the tape, which had a negative effect on the tape itself.
発明の目的
本発明は上述の点に鑑み回転ヘッドドラムに楕円ドラム
形態を具備させテープリール軸並びにテープバス系のテ
ープガイドは全てドラム軸と平行軸に構成し、テープパ
ス系を磁気テープの厚み方向と同一平面上に形成してロ
ーディング機構の簡素化を図ると共にテープのローディ
ング走行距離を短縮し月つ記録パターンの直線性を良好
にしたヘリカルスキャン方式の磁気記録再生装置を提供
するものである。Purpose of the Invention In view of the above points, the present invention provides a rotary head drum with an elliptical drum shape, the tape reel axis and the tape guide of the tape bus system are all configured to have axes parallel to the drum axis, and the tape path system is configured based on the thickness of the magnetic tape. To provide a helical scan type magnetic recording and reproducing device which is formed on the same plane as the direction to simplify the loading mechanism, shorten the tape loading distance, and improve the linearity of the recording pattern. .
発明の概要
本発明は一対の同軸上の静止した楕円柱状ドラムと、こ
の(N円柱状1゛ラム間に位置し且つ楕円柱状ドラムの
軸方向に対して11.ll(斜する回転軸にて(有田柱
状ドラムの周面に涜って回転される回転ヘッドを有し、
テープバス系を楕円柱状ドラムの軸方向と直交する面上
に形成してなり、楕円柱状ドラムの周面を摺動される磁
気テープ上にヘリ力ルスギャンで記録再生することを特
徴とする磁気記録再生装置&Iであって、記録パターン
の高精度化、ローティング機構の簡素化及びローディン
グセット時間の短、縮を図ることができるようにしたも
のである。Summary of the Invention The present invention comprises a pair of coaxial stationary elliptical cylindrical drums, and a rotating shaft located between the (N cylindrical 1. (It has a rotating head that rotates around the circumferential surface of the Arita columnar drum,
Magnetic recording characterized in that a tape bus system is formed on a surface perpendicular to the axial direction of an elliptical cylindrical drum, and recording and reproduction is performed by helical force on a magnetic tape that is slid on the circumferential surface of the elliptical cylindrical drum. This is a reproducing apparatus &I, which is capable of increasing the accuracy of recording patterns, simplifying the loading mechanism, and shortening the loading set time.
発明の実施例
以下、本発明の磁気記録再生装置の一実施例を図面を参
照しながら説明する。Embodiment of the Invention An embodiment of the magnetic recording/reproducing apparatus of the present invention will be described below with reference to the drawings.
先ず@1図、第2図について本発明の原理構造を説明す
る。First, the principle structure of the present invention will be explained with reference to Figures 1 and 2.
第1図及び第2図において(1)、(2)は悄円柱状ド
ラムであって、g1図に示ず如く楕円形態のデープ箔゛
動面を有し、この楕円柱状トラム(1)、(2)は同軸
線(3)上に対応し、この対向する端面(la)(2a
)は軸線(3)に対してrli装の禎刷角(4)を有し
、所要の間隙(5)が形成されるように連結体(6)に
よりテープ摺接面と反対側の周面において連結される。In FIGS. 1 and 2, (1) and (2) are cylindrical drums, each having an elliptical deep foil moving surface as shown in FIG. (2) corresponds to the coaxial line (3), and the opposing end faces (la) (2a
) has an RLI angle (4) with respect to the axis (3), and the peripheral surface opposite to the tape sliding surface is connected by the connecting body (6) so that the required gap (5) is formed. connected at.
この楕円柱状ドラム(1)、(2)の間の間隙(5)に
は回転ヘッドティスフ(7)が配されこの回転ヘッドデ
ィスク(7)の輔(8)は円柱状ドラム(1)、(2)
の11斜端而(1a)、(2a)と直交する状態で楕円
柱状ドラム(2)に対して軸支されてオ0す、又回転ヘ
ッドディスク(7)には磁気ヘッド(9)、(10)が
楕円柱状ドラム(1)、(2)の周面、即ちテープ箔1
動而から突出すξ、ように取り伺けられている。(11
)、(12)は磁気テープのガイドポストであって楕円
柱状ドラム(1)、(2)のテープ摺接面の両側に位置
し楕円柱状ドラム(1)、(2)の軸線(3)と半行で
磁気テープTを楕円柱状ドラム(1)、(2)に対して
所要の巻伺角θ(本例ではθ−30°〜bO°)だけ巻
き付ける間隔で配されている。(] :3)は楕円柱状
ドラム(2)の周面に軸線(3)と直交する方向に形成
されたテープフランジガイドである。A rotary head disk (7) is disposed in the gap (5) between the elliptical cylindrical drums (1) and (2), and the foot (8) of the rotary head disk (7) is connected to the cylindrical drums (1) and (2). )
The rotary head disk (7) has magnetic heads (9), ( 10) is the circumferential surface of the elliptical cylindrical drums (1) and (2), that is, the tape foil 1
It is interpreted as a ξ that protrudes from the moving body. (11
) and (12) are magnetic tape guide posts located on both sides of the tape sliding surfaces of the elliptical cylindrical drums (1) and (2), and are aligned with the axes (3) of the elliptical cylindrical drums (1) and (2). The magnetic tape T is arranged in half rows at intervals such that the magnetic tape T is wound around the elliptical cylindrical drums (1) and (2) by a required winding angle θ (in this example, θ-30° to bO°). ( ] :3) is a tape flange guide formed on the circumferential surface of the elliptical cylindrical drum (2) in a direction perpendicular to the axis (3).
このように構成された本例の装置において磁気テープT
は楕円柱状ドラム(1)、(2)に対してガイドポスト
(1])、(12)により巻付角が、又テープフランジ
ガイド(13)によりその幅方向の移動が規制された状
態でti411 W (3)と直交する方向に摺接走行
され、一方向転ヘッドディスク(7)はm (8)によ
り傾斜角(4)を有して回転され、この回転ヘッドディ
スク(7)に塔載された磁気ヘッド(9)、(10)が
磁気テープT上を巻付角θの範囲内でトレースし磁気テ
ープT上に記録パターンが許容範囲内での直線性を保有
して形成されることになる。In the device of this example configured in this way, the magnetic tape T
The ti411 is attached to the elliptical cylindrical drums (1) and (2) with the wrapping angle restricted by the guide posts (1]) and (12), and the movement in the width direction restricted by the tape flange guide (13). The unidirectional rotating head disk (7) is rotated at an inclination angle (4) by m (8), and the rotating head disk (7) is The magnetic heads (9) and (10) traced on the magnetic tape T within the range of the winding angle θ, and a recorded pattern is formed on the magnetic tape T with linearity within the permissible range. become.
次に第8図及び第4図について本発明装置の具体的実施
例を説明する。Next, a specific embodiment of the apparatus of the present invention will be described with reference to FIGS. 8 and 4.
図において(21)、(22)は周面を楕円形状に形成
した上下の固定ドラムで、この上下の固定ドラムは同軸
線(23)上に対向し、この対向する端面(21a)(
22a)は同軸線(23)に対し所要の傾斜角(24)
をイーし、軸方向に所要幅の間隙(25)を設けるよう
に上下同定ドラム(21)、(22)間を連結体:(2
6)によりAgする。又この場合上下の固定ドラム(2
1)、(22)の位W関係にずれが生じないようにノッ
クピン(27)をそれぞれの固定ドラム(21)、(2
2)に連結体(26)を通して打ち込む。固定ドラム(
21)、(22)の間11(25)には回転ヘッドディ
スク(28)が介在され、この回転ヘッドディスク(2
8)は下側固定ドラム(22)にドラムiqh 線(2
3)方向に対して1頃科して軸支される回転1+l+
(29)と一体になって回転され、周縁部には磁気ヘッ
ド(3(+)、(31)が塔載されてそのヘットチップ
の先端か−に下固定ドラム(21)、(22)の周面か
ら突出される。下側固定ドラム(22)には回転軸(2
9)を軸支するベアリング軸受(32)の上方に位1d
シて回転トランス(33)が侃えられており、この固定
側コイル(33a)は下側固定ドラム(22)に固定さ
れ、回転側コイル(33b)は回転軸(29)に取り付
けられて磁気ヘッド(30)、(31)のリード線が接
続され、この回転トランス(33)により磁気ヘッド(
30,)、(31)への記録再生信号の大川力変侯が行
なわれる。In the figure, (21) and (22) are upper and lower fixed drums whose peripheral surfaces are formed in an elliptical shape, and these upper and lower fixed drums face each other on the same axis (23), and the opposing end surfaces (21a) (
22a) is the required angle of inclination (24) with respect to the coaxial line (23)
Connecting body: (2) between the upper and lower identification drums (21) and (22) to provide a gap (25) of the required width in the axial direction
Ag according to 6). In this case, upper and lower fixed drums (2
Place the dowel pins (27) on the respective fixed drums (21) and (2) so that there is no deviation in the W relationship in positions 1) and (22).
2) and drive the connecting body (26) through it. Fixed drum (
A rotating head disk (28) is interposed between 11 (25) and 21) and (22).
8) is the drum iqh line (2) attached to the lower fixed drum (22).
3) Rotation 1+l+ pivoted around 1 in the direction
(29), and magnetic heads (3 (+), (31) are mounted on the peripheral edge of the lower fixed drums (21), (22) at the tip of the head tip or -). The lower fixed drum (22) has a rotating shaft (22).
9) is located 1d above the bearing (32) that pivotally supports the
A rotating transformer (33) is mounted on the shaft, the fixed side coil (33a) is fixed to the lower fixed drum (22), and the rotating side coil (33b) is attached to the rotating shaft (29) and magnetically The lead wires of the heads (30) and (31) are connected, and this rotating transformer (33) drives the magnetic head (
30,) and (31), the recording/reproducing signal is transferred to Okawa Rikihenhou.
回転+111tl (29)の下端は下側固定ドラム(
22)の下向より突出されてシーIJ (34)が固定
されており、このグーIJ(34)と駆動モータ(図示
せず)との間にベルト(35)を巻回して回転ヘッドデ
ィスク(28)を間接駆動するように4に成しである。The lower end of the rotation +111tl (29) is the lower fixed drum (
A sea IJ (34) is fixed by protruding from the bottom of the goo IJ (22), and a belt (35) is wound between the goo IJ (34) and a drive motor (not shown) to rotate the rotating head disk ( 28) so as to indirectly drive the motor.
又下側固定ドラム(22)にはPGヘッド(36)が固
定され、これと対応して回転ヘッドディスク(28)に
はPC)マグネット(37)か取りイ」けられて回転ヘ
ットディスク(28)の回転位相を検出するようになさ
れている。Further, a PG head (36) is fixed to the lower fixed drum (22), and correspondingly, a PC (PC) magnet (37) is mounted on the rotating head disk (28). ) is designed to detect the rotational phase of the
(38)、(39)は上下固定ドラム(21)、(22
)に対して磁気テープTを所要の巻付角θで巷き伺けろ
テープガイドボストであって、このテープカイトポスト
(38)、(39)は−1−下固定ドラム(21)、(
22)の中心軸線(23)と平行に配され、磁気テープ
Tは上下固定ドラム(21)、(22)に対してテープ
ガイドポスト(38)、(39)により巻付角θがノ3
を定され下固定ドラム(22)のフランジ面(40)に
より幅規制されて上下固定ドラム(21)、(22)の
中上r IIql+物(23)と直交する方向に走行さ
れる。(38) and (39) are upper and lower fixed drums (21) and (22).
) is a tape guide post that allows the magnetic tape T to be passed around at the required winding angle θ, and these tape kite posts (38), (39) are connected to -1-lower fixed drum (21), (
The magnetic tape T is arranged parallel to the center axis (23) of the upper and lower fixed drums (21) and (22) by the tape guide posts (38) and (39) so that the winding angle θ is
is fixed, and its width is regulated by the flange surface (40) of the lower fixed drum (22), and it travels in a direction perpendicular to the middle upper part (23) of the upper and lower fixed drums (21) and (22).
尚、上下固定ドラム(21)、(22)は全周な楕円形
状とすることなく磁気テープ巻付部(巻付角θの範囲、
)以外の周面を逃げを持たせた形状にしてもよく、又下
固定ドラム(22)のフランジ面(40)は磁気テープ
巻伺部(巻付角θの範囲)のみに形成すればよい。Note that the upper and lower fixed drums (21) and (22) do not have a full-circumference elliptical shape;
) may have a shape with relief, and the flange surface (40) of the lower fixed drum (22) may be formed only at the magnetic tape winding part (within the range of winding angle θ). .
このように構成される本例の装置において上下固定ドラ
ム(21)、(22)を長径を20 mm 、短径19
.9238 mmの楕円形状に形成して記録ノ々ターン
記録角度を約5度とし、回転ヘッドディスク(28)の
回転数を180Or−p・■1、トラック幅10〜20
μm。In the apparatus of this example configured in this way, the upper and lower fixed drums (21) and (22) have a major axis of 20 mm and a minor axis of 19 mm.
.. It is formed into an elliptical shape of 9238 mm, the recording angle is approximately 5 degrees, the rotation speed of the rotary head disk (28) is 180 Or-p.■1, and the track width is 10 to 20.
μm.
テープ巻付角30°〜60°として磁気テープTにヘリ
カルスキャン占己録を行った結果、第5図に示す如<
H記録パターンの回転ヘッドディスクの傾余[角による
ばらつき(○×印)は許容上限すと許容下限Cとの間に
おいて理想記録パターンa上にあり、ヘリカルスキャン
による記録再生装置として上限、下限の許容値数μm〜
士数μ?n程度の条件を満足しうろことが立証された。As a result of performing a helical scan recording on the magnetic tape T with a tape winding angle of 30° to 60°, the results are as shown in Fig. 5.
The inclination of the rotating head disk of the H recording pattern [variations due to angle (○× marks)] is on the ideal recording pattern a between the allowable upper limit and the allowable lower limit C, and is within the upper and lower limits for a helical scan recording/reproducing device. Tolerance: several μm
Number μ? It has been proven that the conditions of about n are satisfied.
尚、第5図に示す特性曲線図の伯軸はテープ巻付角θを
示し、ここでは巻付角30°を、匣官上楕円形固定ドラ
ム(21)、(22)の長径方向を00として±15°
に振り分けて+15゜側を示し、縦軸の情報へ号幅は巻
付角の座標o0のところからテープ幅方向に振分けたも
ので、一般にVTRにおいてはビデオ信号幅に相当する
が本例においてはPCMデーテープーダのテジタルラム
の周面に渚って回転ヘッドを倒置状ドラムの中心軸線に
対し傾斜する回転軸により傾斜回転させると共にテープ
パス糸を楕円状ドラムの中心軸と直交する面上に形成す
るので、磁気テープはその長手方向の同一平面上を走行
されることになり1み気テープに捩り方向のテンション
が加わることなく常に均一な張力で走行され、ヘリカル
スキャンによるB記録パターンがμm峯青度で得られる
と共にローディンゲタ矛程が短かくなり、ローディング
時間が短縮されて記録再生動作の応答性を向上でき特に
本発明装置は回転ヘッドドラムに対する磁気テープの巻
付角が小なる例えばP CMテープレコーダ等に適用し
てその効果が犬である。Incidentally, the brown axis of the characteristic curve diagram shown in FIG. 5 indicates the tape winding angle θ. as ±15°
The width is distributed in the tape width direction from the coordinate o0 of the wrapping angle, and generally corresponds to the video signal width in a VTR, but in this example The rotating head is attached to the circumferential surface of the digital ram of the PCM data padder, and the rotating head is rotated at an angle by the rotating shaft that is inclined with respect to the central axis of the inverted drum, and the tape pass yarn is formed on a surface perpendicular to the central axis of the elliptical drum. Since the magnetic tape is run on the same plane in the longitudinal direction, the tape is always run with uniform tension without applying any tension in the torsional direction, and the B recording pattern by helical scanning has a micron density. In addition, the loading distance is shortened, the loading time is shortened, and the responsiveness of the recording/reproducing operation is improved.In particular, the device of the present invention is applicable to, for example, a PCM tape recorder in which the winding angle of the magnetic tape around the rotating head drum is small. The effect is applied to dogs.
第1図は本′発明による磁気’M+2録再生装置の原理
構造の乎聞図、第2図は同、正面図、第3図は本発明に
よる磁気吉α録再生装置の一実施例の平面図、第4図は
第3図のA −A 崖(ト)r自回、第5図は特性曲線
図である。
(21)、(22)は上下II!!l定ドラムカドラム
)はドラム中心q!Ill線、(28)は回転ヘッドデ
ィスク、(29)は回転’Ell、(30)、(31)
はイ戯気ヘッド、(38)、(39)はガイドボスト、
(40)はガイドフランジ面、Tは磁気テープである。
代 坤 人 伊 藤 六回
松 酸 秀 盛Fig. 1 is a diagram showing the principle structure of the magnetic M+2 recording and reproducing device according to the present invention, Fig. 2 is a front view of the same, and Fig. 3 is a plan view of an embodiment of the magnetic M+2 recording and reproducing device according to the present invention. 4 shows the A-A cliff (g)r rotation of FIG. 3, and FIG. 5 shows the characteristic curve. (21) and (22) are upper and lower II! ! l constant drum cadrum) is the drum center q! Ill line, (28) is rotating head disk, (29) is rotating 'Ell, (30), (31)
is the i-joki head, (38) and (39) are the guide bosses,
(40) is a guide flange surface, and T is a magnetic tape. Yokonto Ito 6 times
Hidemori Matsuka
Claims (1)
ドラム間に位置し且つ上記楕円柱状ドラムの軸方向に対
して傾斜する回転軸にて上記楕円柱状ドラムの周面に溢
って回転される回転ヘッドを有し、テープパス系を上記
楕円柱状ドラムの軸方向と直交する面上に形成してなり
、上記楕円柱状ドラムの周面を摺動される磁気テープ上
にヘリカルスキャンで記録再生することを特徴とする磁
気記録再生装置。A pair of stationary elliptical cylindrical drums on the same axis, and a rotating shaft located between the elliptical cylindrical drums and inclined with respect to the axial direction of the elliptical cylindrical drums rotate over the circumferential surface of the elliptical cylindrical drums. The tape path system is formed on a surface perpendicular to the axial direction of the elliptical cylindrical drum, and records and plays back by helical scanning on the magnetic tape that slides on the circumferential surface of the elliptical cylindrical drum. A magnetic recording/reproducing device characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57172207A JPS5963046A (en) | 1982-09-30 | 1982-09-30 | Magnetic recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57172207A JPS5963046A (en) | 1982-09-30 | 1982-09-30 | Magnetic recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5963046A true JPS5963046A (en) | 1984-04-10 |
Family
ID=15937569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57172207A Pending JPS5963046A (en) | 1982-09-30 | 1982-09-30 | Magnetic recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5963046A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63161442U (en) * | 1987-04-13 | 1988-10-21 | ||
US5790349A (en) * | 1995-04-28 | 1998-08-04 | Sony Corporation | Rotary head device |
-
1982
- 1982-09-30 JP JP57172207A patent/JPS5963046A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63161442U (en) * | 1987-04-13 | 1988-10-21 | ||
US5790349A (en) * | 1995-04-28 | 1998-08-04 | Sony Corporation | Rotary head device |
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