JPS5942629A - Rotary head mechanism in video tape recorder - Google Patents
Rotary head mechanism in video tape recorderInfo
- Publication number
- JPS5942629A JPS5942629A JP15374882A JP15374882A JPS5942629A JP S5942629 A JPS5942629 A JP S5942629A JP 15374882 A JP15374882 A JP 15374882A JP 15374882 A JP15374882 A JP 15374882A JP S5942629 A JPS5942629 A JP S5942629A
- Authority
- JP
- Japan
- Prior art keywords
- upper drum
- screw
- outside
- drum
- support
- 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
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
- Unwinding Webs (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はＶＴＲにおける固定上ドラム方式の回転ヘッジ
機構に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fixed upper drum type rotating hedge mechanism for a VTR.
固定上ドラム方式（モータの軸に上ドラムを直接連結し
て上Ｖラムが回転する回転上ドラム方式と対抗する）の
場合、上にラムは外周の一部をサポートを介して下ドラ
ムに連結するため、この連結部から離り、 ｆｄテープ
添接外周は下ドラムの外周ト正確に一致しないため走行
するテープとヘラｒ先端とを良好に接鋤させること九で
きなかった。In the case of a fixed upper drum system (as opposed to a rotating upper drum system in which the upper drum is directly connected to the motor shaft and the upper V ram rotates), the upper ram is connected to the lower drum through a support at part of its outer circumference. Therefore, since the outer circumference of the FD tape does not exactly match the outer circumference of the lower drum when the tape is separated from the connecting portion, it is not possible to properly connect the running tape to the tip of the spatula r.
本発明は上記欠点を解消するものでテープ走行の念め段
差を股げた上下ｒラムのテープ添接外周面が正確に一致
するべく調整できる様にし食ものである。The present invention solves the above-mentioned drawbacks and is designed to allow adjustment so that the tape-applied outer circumferential surfaces of the upper and lower R rams across the step can be adjusted to accurately match each other when running the tape.
以下本発明の一笑施例を図面に基づき説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An exemplary embodiment of the present invention will be described below based on the drawings.
第１図及び第２図に示す■〈固定」−１ζζラム式の構
造は上ｒラムｉｌｌ ＋２１ （ｚ外周の一部でサポー
ト（３）によりネジ１４）・・・を介して下にラムに固
定している。■〈Fixed〉-1ζζ ram type structure shown in Figs. Fixed.
この固定用ネジ（４１・・・は上下２個ずつで計４個で
ある。下ｒラム下部には駆動モータ開力；あり、この上
方のモータ軸（７）にヘッドプレー） ＋８） ｉ 連
結していて、ヘラじプレート（８）外周に１８０度間幅
間隔個のビテオヘツｋ（社）■が設けである。該ヘツｒ
■凹先端は上下ドラム（１１＋２１の間隙から若干外側
へ覗かし、ビデオテープ（Ｔ）への添接を良好にしでい
る。There are four fixing screws (41..., two on the top and two on the top and bottom). There is a drive motor opening force at the bottom of the lower ram, and a head play on the motor shaft (7) above this. +8) i Connection The outer periphery of the spatula plate (8) is provided with Viteohets (manufactured by K. Co., Ltd.) at 180 degree width intervals. The head
■The concave tip peeks out slightly from the gap between the upper and lower drums (11+21) to ensure good adhesion to the video tape (T).
また、−Ｆｇドラム２）のテープＷ）が添接する略１８
０度の外周面（ではテープＣｒｌ下縁′ｆ！：文持する
段差（９）を形成しかつこの段差面は上にラムの同面と
間隙を介して而−に対向してテープｆＴ］走行時設定し
た走行位置からテープがずれない様にしている。In addition, the tape W) of -Fg drum 2) is attached to approximately 18
0 degree outer peripheral surface (the lower edge of the tape Crl'f!: forms a supporting step (9), and this step surface faces the same surface of the ram above with a gap between the tape fT) This prevents the tape from shifting from the set running position during running.
′！！り、６０記上Ｗ ラムＨ（ｄ ”ｆ ホー ト１
３１ ＪｒＸ （ｔｆ ｆｕｌｌ （７） 略１８０度
範囲凹に沿って上面に長穴（５）を開設し、テープ添接
側の略１８０度範囲（３）を該ドラムｔｌ＋の真円の歪
み作用に対して強度をもたせ・、他のサボ−） ＋３１
側は円の歪み作用に対して強度を弱くする様に形成して
いる。さらに、上ドラムｉｌ＋とサポート（３１とを固
定する前記ネジ＋４１１４１の外側に上記Ｊ−Ｍラムラ
ム外周部に屈曲作用を与えるｍ整ネジ＋６’＋ ＋Ｇ１
１ｃ股ばている。該調整ネジ＋６１ （６ｉは第３図及
び第４図に示す如く、固定用ネジ１４１の外側にサポー
ト（３１のみｆＣネジ孔１１６］を設はネジ（６）の締
付けにより該ネジ先端が上ドラムｉｌ＋側面を押印して
上ドラムｉｌ＋の外周を矢印（イ）方向へ歪ませる。こ
の構成は第１図のネジｉｌｌ ［６１の両方共に同一で
ある。従つ、で、第１図に於いて、右側のネジ（６）ｆ
：締付けると、上ドラム（月のテープ添接側の１８０度
外側縁は真円状態を確保しながらサポート側の半円が左
へ押■されるので、テープ添接側は２点鎖線で示す状態
に左へ移動する。′! ! , 60 above W ram H (d ”f hort 1
31 Jr Increase strength against other sabots) +31
The sides are formed to weaken the strength against the distortion effect of the circle. Further, on the outside of the screw +41141 that fixes the upper drum il+ and the support (31), there is an m adjustment screw +6'+ +G1 that gives a bending action to the outer circumference of the J-M ram.
1c crotch spread. The adjusting screw +61 (as shown in Figures 3 and 4 for 6i, a support (only fC screw hole 116 for 31) is provided on the outside of the fixing screw 141), so that when the screw (6) is tightened, the tip of the screw can be attached to the upper drum. The outer periphery of the upper drum il+ is distorted in the direction of arrow (A) by stamping the side surface of the upper drum il+.This configuration is the same for both screws 61 in FIG. , right screw (6) f
: When tightened, the semicircle on the support side is pushed to the left while ensuring that the 180 degree outer edge of the upper drum (the side where the tape is attached) is perfectly circular, so the side where the tape is attached is shown by the two-dot chain line. Move left to state.
一方、左側のネジ（６）全締付けると、上ドラムｉｌ＋
のテープ添接側の１８０度外側縁は真円状態全確保しな
がらサポート側の半円が右へ押圧されるので、１点鎖線
で示す状態に右へ移動する。斯様にして左右のネジ＋Ｇ
Ｉ ＩＯ２を適宜調節してテープ添接側周縁を下ドラム
の対向する周縁１ｃ適正に一致させることができる。On the other hand, when the left screw (6) is fully tightened, the upper drum il+
The semicircle on the support side is pressed to the right while the 180 degree outer edge of the tape attachment side maintains a perfect circle state, so it moves to the right to the state shown by the one-dot chain line. In this way, screw the left and right +G
By appropriately adjusting IIO2, the tape attachment side circumferential edge can be properly aligned with the opposing circumferential edge 1c of the lower drum.
第５図及び第６図は前記調整ネジの他の実施例を示すも
ので（同一部分には同−附号で示す）、この調整ネジ（
６ａ）は固定ネジ１４）の外側（（サポート（３）に遊
嵌状に挿入して上ドラムｉｌ＋のネジ孔（１６ａ）にね
じ込むもので、該ネジ（６ａ）の締付けにより該ネジ先
端が」ニドラムｉｌｌ側縁を引寄せて、ねじ込み部周辺
に屈曲作用を与えることにより、上にラムｆｉ＋の外周
を矢印（＋：１１方回へ歪ませる。前記実施例と同様同
一のネジ（６ａ）（６ａ）が一対設けである。従って、
第１図を参考にすると４０記と同様に、右側のネジ（６
ａ）を締付けると、上げラム（１）のテープ添接側の１
８０度外側縁は真円状態を確保しなからサポート側の半
円が左へ押圧されるので、テープ添接側は２点鎖線で示
す状態に左へ移動する。−万、左側のネジ（６ａ）’ｉ
締伺けると、上ドラム（１）のテープ添接側の１８０度
外側縁は真円状ｉｔ全確保ながらサポート側の半円が右
へ押圧されるので、１点鎖線で示す状態に右へ移ｌ１ｉ
１１する。斯様にして左右のネジ（６ａ）（６ａ）を適
宜調節してテープ添接側周縁全下ドラム（２１の対向す
る周縁に適正に一致させることができる。Figures 5 and 6 show other embodiments of the adjustment screw (the same parts are indicated by the same numbers), and this adjustment screw (
6a) is the outside of the fixing screw 14) (which is loosely inserted into the support (3) and screwed into the screw hole (16a) of the upper drum il+, and when the screw (6a) is tightened, the tip of the screw is By pulling the side edges of the Ni drum ill and applying a bending action to the periphery of the screwed part, the outer periphery of the ram fi+ is distorted in the direction of the arrow (+: 11 directions). 6a) is provided as a pair. Therefore,
Referring to Figure 1, the screw on the right side (6
When a) is tightened, 1 on the tape attachment side of the lifting ram (1)
Since the semicircle on the support side is pressed to the left without ensuring that the 80 degree outer edge is perfectly circular, the tape attachment side moves to the left to the state shown by the two-dot chain line. - 10,000, left screw (6a)'i
When it is tightened, the 180 degree outer edge of the tape attachment side of the upper drum (1) will be completely circular, and the semicircle on the support side will be pushed to the right, so it will move to the right as shown by the one-dot chain line. Transfer l1i
11. In this manner, the left and right screws (6a) (6a) can be appropriately adjusted to properly match the entire lower circumferential edge of the tape application side with the opposing circumferential edge of the drum (21).
叙上の如く本発明は上下ドラムを外周部でサポートによ
りネジ・・・を介して固定する様にした固定上ドラム方
式の構造において、前記上ドラムは略１８０度範囲のテ
ープ添接外局面を有する側に該上ドラムの真円の歪み作
用に対して強度をもたせ、残りの略１８０度範囲のサポ
ー） ＪＩ’Ｘ付側の上面に沿って長穴を開設して上ド
ラムの円の歪み作用に対する強度を弱める様に成型する
と共に、」ニドラムとサポートとを固定する前記ネジの
外側に上記上ドラムの外周部に屈曲作用を与える調整ネ
ジを設け、該ネジを介して上ドラムの円に全作用を与え
て上ドラムのテープ添接外周面とこれに対向する下ドラ
ム（２）の外周面との各々の外周を一致させる様にした
ので、既存の固定上ドラム方式のものに容易に適応でき
、構成が簡単で安価に作成できると共に、テープ添接面
の調整が簡単で、これを調整することにより走行するテ
ープにヘッド先端を適正に接触させて、良好な録画・再
生を行うことができる等の効果がある。As described above, the present invention has a fixed upper drum type structure in which the upper and lower drums are supported at the outer periphery and fixed via screws. (The side with the JI'X is provided with strength against the distortion of the perfect circle of the upper drum, and the remaining approximately 180 degrees of support is provided.) An elongated hole is created along the top surface of the side with the JI'X to prevent distortion of the circle of the upper drum. It is molded to weaken the strength against the action, and an adjustment screw is provided on the outside of the screw that fixes the upper drum and the support to give a bending action to the outer periphery of the upper drum. Since the outer circumferential surface of the upper drum to which the tape is applied and the outer circumferential surface of the lower drum (2) facing the same are made to coincide with each other by giving full effect, it can be easily applied to the existing fixed upper drum type. It is adaptable, has a simple configuration, can be produced at low cost, and the tape attachment surface can be easily adjusted. By adjusting this, the tip of the head can be brought into proper contact with the running tape, and good recording and playback can be achieved. There are effects such as being able to.
第１図は本発明の一実施例を示す平面視説明図、第２図
は前図のＡ−Ａ線断面概略説明図、第３図及び＠４図は
前図の部分拡大断面図、第５図及び第６図は他の実施例
を示す部分拡大断面図である。
■・・・上ドラム
＋２１・・・下ドラム
（３）・・・サポート
（４）・・・固定用ネジ
＋５１・・・長 穴
ｆ６１（６ａ）・・・調整ネジ
出願人 船井電機株式会社FIG. 1 is a plan view explanatory diagram showing one embodiment of the present invention, FIG. 2 is a schematic cross-sectional diagram taken along the line A-A in the previous figure, and FIGS. 3 and 4 are partially enlarged sectional views of the previous figure. 5 and 6 are partially enlarged sectional views showing other embodiments. ■...Upper drum +21...Lower drum (3)...Support (4)...Fixing screw +51...Long hole f61 (6a)...Adjustment screw Applicant Funai Electric Co., Ltd.
Claims (1)
によりネジ１４）・・・を介して固定す、る様にした固
定上ドラム方式の構造において、前記上ドラム＋ｌＩｄ
略１８０度範囲のテープ添接外周面Ｘ１を有する側に該
上ｒラム＋Ｉ＋の真円の歪み作用に対して強度をもたせ
、残りの略１８０度範囲凹のサポー） ＋３１’ｆｆＸ
付側の」二面に沿っで長穴（５１ヲ開設して上１ラムｉ
ｌ＋の円の歪み作用に対する強度を弱める様に成績する
と共に、上ドラム（１１とサポート（３１とを固定する
０（Ｉ記ネジ（４１（４）の外側に上記上ドラム＋Ｉ＋
の外周部に屈曲作用を与えるｍ整ネジ＋６１ ｉＧｌ、
（６ａ）（６ａ）を設け、該ネジ（６）（６）、（６ａ
） （６ａ ）をイトして上ドラムＩＩ＋の円に全作用
を与えて上ｒラム山のテープ添接外周面一とこれに対向
する下ドラム（２）の外周面との各々の外周を一致させ
る様にしたＶＴＲにおける回転ヘラ）？４１７構。Supports Kitakami V Ram II+ 121 on the outer periphery (3)
In a fixed upper drum type structure in which the upper drum is fixed via screws 14), the upper drum + lId
The side having the tape attachment outer circumferential surface X1 in the approximately 180 degree range has strength against the perfect circular distortion action of the upper r ram +I+, and the remaining concave support in the approximately 180 degree range) +31'ffX
Open a long hole (51) along the two sides of the side and insert the upper 1 ram I.
In addition to weakening the strength against the circular distortion effect of l+, the upper drum + I+ is attached to the outside of the screw (41 (4) marked I) that fixes the upper drum (11 and the support (31).
m adjustment screw +61 iGl that gives a bending action to the outer periphery of
(6a) (6a) are provided, and the screws (6) (6), (6a
) (6a) to give full effect to the circle of the upper drum II+, and align the outer circumferences of the tape-applied outer circumferential surface of the upper r ram mountain and the outer circumferential surface of the lower drum (2) opposite thereto. (Rotating spatula in VTR)? 417 buildings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15374882A JPS6027106B2 (en) | 1982-09-02 | 1982-09-02 | Rotating head mechanism in VTR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15374882A JPS6027106B2 (en) | 1982-09-02 | 1982-09-02 | Rotating head mechanism in VTR |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5942629A true JPS5942629A (en) | 1984-03-09 |
| JPS6027106B2 JPS6027106B2 (en) | 1985-06-27 |
Family
ID=15569247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15374882A Expired JPS6027106B2 (en) | 1982-09-02 | 1982-09-02 | Rotating head mechanism in VTR |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6027106B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61158632U (en) * | 1985-03-20 | 1986-10-01 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH022727Y2 (en) * | 1985-07-29 | 1990-01-23 |
-
1982
- 1982-09-02 JP JP15374882A patent/JPS6027106B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61158632U (en) * | 1985-03-20 | 1986-10-01 | ||
| JPS6341637Y2 (en) * | 1985-03-20 | 1988-11-01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6027106B2 (en) | 1985-06-27 |
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