JPS60187963A - Positioning mechanism of tape guide in vtr - Google Patents

Positioning mechanism of tape guide in vtr

Info

Publication number
JPS60187963A
JPS60187963A JP59042036A JP4203684A JPS60187963A JP S60187963 A JPS60187963 A JP S60187963A JP 59042036 A JP59042036 A JP 59042036A JP 4203684 A JP4203684 A JP 4203684A JP S60187963 A JPS60187963 A JP S60187963A
Authority
JP
Japan
Prior art keywords
cylinder
tape
tape guide
guide
magnetic
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.)
Granted
Application number
JP59042036A
Other languages
Japanese (ja)
Other versions
JPH056747B2 (en
Inventor
Nobuyuki Kaku
信行 賀来
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP59042036A priority Critical patent/JPS60187963A/en
Publication of JPS60187963A publication Critical patent/JPS60187963A/en
Publication of JPH056747B2 publication Critical patent/JPH056747B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To fix a narrow gap with a good reproducibility by providing a member having a prescribed thickness between a magnetic tape sliding face of a cylinder and a tape guide and pressing the tape guide to the cylinder through this member. CONSTITUTION:A rotary cylinder 1 consists of an upper fixed cylinder 9, an intermediate rotary cylinder 10, and a lower fixed cylinder 11, and magnetic heads 2 and 3 are mounted on the intermediate rotary cylinder 10, and the lower fixed cylinder 11 is provided with a lead 23 which guides a magnetic tape 8, and upper and lower fixed cylinders 9 and 11 are connected by a connecting member 12. In the state where the tape guide is positioned, an incoming-side fixed guide 4 is fixed vertically by control faces 13 and 14, and its height is determined in a prescribed position by engagement between a projection 15 and a recessed part 24.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は磁気記録再生装置におけるテープガイドの位置
決め機構に係り、特に回転シリンダに近接して正確に位
置決めするのに好適な機構に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a positioning mechanism for a tape guide in a magnetic recording/reproducing device, and particularly to a mechanism suitable for accurately positioning a tape guide close to a rotating cylinder.

〔発明の背景〕[Background of the invention]

従来の磁気記録再生装置におけるテープガイドの位置決
めは、テープガイドの搭載されたブロックをキャッチャ
で位置決め保持する方法が一般的である。更にそのキャ
ッチャは回転シリンダが位置決め固定されているペース
上の所定の位置に取付けられている。従ってこの様な装
置においては、回転シリンダとテープガイドの位置関係
は、ペース及びキャッチャの各々の部品精度及び取付精
度を介して保たれることになる。特に回転シリンダに近
接するテープガイドは、その回転シリンダに対する位置
及び角度の精度が、テープの走行性能及びヘッドテープ
コンタクト等に影響を及ぼしやすいために必要にしてか
つ充分の精度が保たれねばならない。
In conventional magnetic recording and reproducing devices, the tape guide is generally positioned by using a catcher to position and hold a block on which the tape guide is mounted. Further, the catcher is mounted at a predetermined position on the pace in which the rotary cylinder is fixedly positioned. Therefore, in such an apparatus, the positional relationship between the rotary cylinder and the tape guide is maintained through the accuracy of each component and attachment of the pacer and the catcher. In particular, the tape guide close to the rotating cylinder must maintain necessary and sufficient accuracy because the accuracy of its position and angle with respect to the rotating cylinder tends to affect tape running performance, head tape contact, etc.

特に回転シリンダにテープをほぼ全周にわたり(例えば
300°〜540°位)巻装する場合には、回転シリン
ダ最近傍のテープガイドはかなり回転シリンダに近接せ
ざるを得ない。またこの場合、テープガイドと回転シリ
ンダ上のテーブの接点との距離が必然的に短くなるため
に、テープガイドの位tltn度が回転シリンダへの巻
付角等に及ぼす影響度が太き(なり、従来以上の位置精
度が必要とされる。
Particularly, when the tape is wound around the rotating cylinder over almost the entire circumference (for example, around 300° to 540°), the tape guide closest to the rotating cylinder has to be quite close to the rotating cylinder. In addition, in this case, since the distance between the tape guide and the contact point of the tape on the rotary cylinder is inevitably shortened, the degree of influence of the tape guide position on the winding angle on the rotary cylinder is large (becomes large). , higher positional accuracy than conventional methods is required.

〔発明の目的〕[Purpose of the invention]

本発明は、上述した従来技術の不都合点を解消し、回転
シリンダに対するテープガイドの位置及び角度の精度を
従来以上に正確に、かつ書現性良(得られるテープガイ
ドの位置決め機構を提供することにある。
The present invention solves the above-mentioned disadvantages of the prior art, and provides a tape guide positioning mechanism that allows the position and angle of the tape guide relative to the rotary cylinder to be more accurate than ever before, and with good writing performance. It is in.

〔発明の概要〕[Summary of the invention]

本づ6明の特徴は、回転シリンダに対するテープガイド
の位置を高い精度で確保するために、テープが周接する
シリンダ部にテープガイドを位置決めするテープガイド
位置決め部材を、シリンダ側あるいはテープガイド側に
設けたことである。
The feature of this invention is that in order to ensure the position of the tape guide with respect to the rotating cylinder with high precision, a tape guide positioning member is provided on the cylinder side or the tape guide side to position the tape guide in the cylinder part where the tape circumferentially contacts. That's what happened.

〔発明の実施例〕[Embodiments of the invention]

第1図〜第5図により本発明による実施例を詳述する。 Embodiments according to the present invention will be described in detail with reference to FIGS. 1 to 5.

第1図は回転シリンダまわりの平面図を示す。1は回転
シリンダ、2及び6は該回転シリンダ1に搭載さハた磁
気ヘッド、4及び5は回転シリンダ1の1!I傍に位置
決めされる入側及び出側固定ガイド、6及び7は磁気テ
ープ80走行方向′la0:変換するための入側及び出
側ガイドローラである。磁気テープ8は矢印口の方向に
走行し、入側及び出側固定ガイド4及び5により回転シ
リンダ1に所走角度θだけ螺旋状に巻装される。また回
転シリンダ1は矢印イ方向に回転し、磁気へンド2及び
6は磁気テープB上を斜めに走査する。
FIG. 1 shows a plan view around the rotating cylinder. 1 is a rotating cylinder, 2 and 6 are magnetic heads mounted on the rotating cylinder 1, and 4 and 5 are 1! of the rotating cylinder 1. Inlet and outlet fixed guides 6 and 7 positioned near I are input and outlet guide rollers for changing the running direction of the magnetic tape 80 'la0:'. The magnetic tape 8 travels in the direction of the arrow, and is spirally wound around the rotary cylinder 1 by the entrance and exit fixed guides 4 and 5 at a running angle θ. Further, the rotating cylinder 1 rotates in the direction of arrow A, and the magnetic heads 2 and 6 scan the magnetic tape B obliquely.

第2図は本装置により得られろ磁気テープB上のパター
ン図を磁性面側より見た図である。
FIG. 2 is a diagram of a pattern on magnetic tape B obtained by this apparatus, viewed from the magnetic surface side.

図中2a〜2f等で示したトラックが磁気ヘッド2によ
る走査軌跡であり、5a〜3f等で示したトラックが各
々添字毎に磁気ヘッド2に対する磁気ヘッド6の走査軌
跡である。磁気ヘッド2及び6の位置関係は、ヘッドの
回転面内で前記巻付角θに相当する位置に、また高さ方
向には磁気ヘッド3は磁気ヘッド2よりhだけ低い61
首に1反付けら才する。そして、磁気ヘッド2は巻付角
θの範囲を走査し、磁気ヘッド3は、磁気ヘッド2が磁
気テープ8と接触しない2π−θに対応する範囲を走査
する。
Tracks indicated by 2a to 2f, etc. in the figure are scanning trajectories by the magnetic head 2, and tracks indicated by 5a to 3f, etc. are scanning trajectories of the magnetic head 6 with respect to the magnetic head 2 for each subscript. The positional relationship between the magnetic heads 2 and 6 is such that the magnetic head 3 is located at a position corresponding to the winding angle θ in the rotational plane of the head, and the magnetic head 3 is located at a position 61 h lower than the magnetic head 2 in the height direction.
There is one mark on the neck. Then, the magnetic head 2 scans the range of the winding angle θ, and the magnetic head 3 scans the range corresponding to 2π-θ where the magnetic head 2 does not come into contact with the magnetic tape 8.

次に第6図〜第5図によりテープガイドの位置決め方式
を述べる。第6図は回転シリンダ1の構造を示す。回転
シリング“1は上固定シリンダ9.中回転シリンダ10
及び下固定シリンダ11とから成っており、中回転シリ
ンダ10には磁気・\ラド2及び6が搭載され、下向ポ
ジリンダ11には磁気テープ80走行を案内するり一ド
23が設けられている。また上及び下固定シリンダ9及
び11は連結材12により連結されている。連結材12
は、テープガイドの位置決め用として回転シリンダ1と
のすきまを定めるための規制面16゜回転シリンダまわ
りの位置を定めるための規制面14及び尚さを定めるた
めの部材15とが設けらr+でいる。第4図はテープガ
イド類の構造な示す。入側固定ガイド4及び入側ガイド
ローラ6前方には前記連結材12の突起15と係合する
凹部24が、更に下方にはペース16の移動案内用とし
てボス17及び18が設けられる。ボス18にはばね2
1を内包するアーム19が回動可能に連結さね、該アー
ム19の他端はローディングリング22に設けられたビ
ン20に係合し、ローディングリング22からの駆動力
を伝達する。第5図はテープガイドが位置決めされた状
態を示す部分断面図である。入側固定ガイド4はその一
ヒ下を前自己規制面15及び14により固定され、その
篩さは突起15と凹部24の係合により79iVの位1
aに決めらねる。
Next, a method for positioning the tape guide will be described with reference to FIGS. 6 to 5. FIG. 6 shows the structure of the rotary cylinder 1. Rotating cylinder "1" is upper fixed cylinder 9. Middle rotating cylinder 10
and a lower fixed cylinder 11, the medium rotating cylinder 10 is equipped with magnetic/rads 2 and 6, and the downward positive cylinder 11 is provided with a guide 23 for guiding the running of the magnetic tape 80. . Further, the upper and lower fixed cylinders 9 and 11 are connected by a connecting member 12. Connecting material 12
is provided with a regulating surface 16° for determining the clearance with the rotating cylinder 1 for positioning the tape guide, a regulating surface 14 for determining the position around the rotating cylinder, and a member 15 for determining the height. . FIG. 4 shows the structure of tape guides. A recess 24 that engages with the protrusion 15 of the connecting member 12 is provided in front of the entrance fixed guide 4 and the entrance guide roller 6, and bosses 17 and 18 are provided below for guiding the movement of the pace 16. Spring 2 on boss 18
1 is rotatably connected to the arm 19, and the other end of the arm 19 engages with a bin 20 provided on a loading ring 22 to transmit the driving force from the loading ring 22. FIG. 5 is a partial sectional view showing a state in which the tape guide is positioned. The entrance side fixed guide 4 is fixed at its lower part by the front self-regulating surfaces 15 and 14, and its sieve width is approximately 79 iV due to the engagement between the protrusion 15 and the recess 24.
I can't decide on a.

〔発明の効果〕〔Effect of the invention〕

以上説明した様に本発明によれば、回転シリンダとその
最近傍のテープガイドの間隙を直接部材により定めるた
めに、非常に狭い間隙を精度良くまた再机性良(定める
ことができる。またテープガイドが回転シリンダあるい
は磁気ヘッドに接触するという小紋を防ぐことができる
As explained above, according to the present invention, since the gap between the rotary cylinder and the tape guide nearest thereto is directly defined by a member, a very narrow gap can be defined with high accuracy and ease of operation. It is possible to prevent small marks caused by the guide coming into contact with the rotating cylinder or the magnetic head.

第1図は本発明の一実施例における回転シリンダまわり
の平面図、第2図は磁気テープに記録されるパターン図
、第3図は回転シリンダの斜視図、第4図はテープガイ
ドの斜視図、第5図は回転シリンダ及びテープガイドの
部分断面図である。
Fig. 1 is a plan view of the rotating cylinder and its surroundings in an embodiment of the present invention, Fig. 2 is a pattern diagram recorded on a magnetic tape, Fig. 3 is a perspective view of the rotating cylinder, and Fig. 4 is a perspective view of the tape guide. , FIG. 5 is a partial cross-sectional view of the rotary cylinder and tape guide.

1・・・回転シリンダ、2.3・・・磁気ヘッド、4・
・・人側固足ガイド、5・・・出側固定ガイド、6・・
・入側ガイドローラ、7・・出側ガイドローラ、8・・
・磁気テープ、9・・・上固定シリンダ、10・・・中
回転。
1...Rotating cylinder, 2.3...Magnetic head, 4.
・・Person side fixed foot guide, 5・Exit side fixed guide, 6・・
・Inlet guide roller, 7・・Outlet guide roller, 8・・
・Magnetic tape, 9... Upper fixed cylinder, 10... Medium rotation.

7リンダ、11・・・下固定シリンダ、12・・・連結
材。
7 cylinder, 11...lower fixed cylinder, 12...connecting material.

1!1.14・・規制面、15・・・突起、16・・・
ペース、24・・・四部。
1!1.14...Regulation surface, 15...Protrusion, 16...
Pace, 24...4 parts.

第2m 第 3 ロ 躬4国 /4 第5四 /2 \2nd m Part 3 B 4 countries /4 54th /2 \

Claims (1)

【特許請求の範囲】[Claims] t 磁気ヘッドを搭載した回転シリンダと、磁気テープ
を内蔵するカセットと、該カセットから磁気テープを引
出し前記回転シリンダに所定の角度だけ螺旋状に巻装す
るテープガイド類より成る磁気記録再生装置において、
シリンダの磁気テープ摺接面とテープガイドとの間に所
定量の厚みを有する部材を設け、シリンダにテープガイ
ドを該部材を介して圧接する構成としたことを特徴とす
るVTRにおけるテープガイドの位置決め機構。
t. A magnetic recording and reproducing device comprising a rotating cylinder equipped with a magnetic head, a cassette containing a magnetic tape, and tape guides for pulling out the magnetic tape from the cassette and winding it spirally around the rotating cylinder at a predetermined angle,
Positioning of a tape guide in a VTR characterized in that a member having a predetermined thickness is provided between the magnetic tape sliding contact surface of the cylinder and the tape guide, and the tape guide is pressed against the cylinder via the member. mechanism.
JP59042036A 1984-03-07 1984-03-07 Positioning mechanism of tape guide in vtr Granted JPS60187963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59042036A JPS60187963A (en) 1984-03-07 1984-03-07 Positioning mechanism of tape guide in vtr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59042036A JPS60187963A (en) 1984-03-07 1984-03-07 Positioning mechanism of tape guide in vtr

Publications (2)

Publication Number Publication Date
JPS60187963A true JPS60187963A (en) 1985-09-25
JPH056747B2 JPH056747B2 (en) 1993-01-27

Family

ID=12624925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59042036A Granted JPS60187963A (en) 1984-03-07 1984-03-07 Positioning mechanism of tape guide in vtr

Country Status (1)

Country Link
JP (1) JPS60187963A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247442A2 (en) * 1986-05-27 1987-12-02 Hitachi, Ltd. Rotating magnetic head device in magnetic recording and reproducing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247442A2 (en) * 1986-05-27 1987-12-02 Hitachi, Ltd. Rotating magnetic head device in magnetic recording and reproducing apparatus

Also Published As

Publication number Publication date
JPH056747B2 (en) 1993-01-27

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