JPS6341612Y2 - - Google Patents
Info
- Publication number
- JPS6341612Y2 JPS6341612Y2 JP1982106896U JP10689682U JPS6341612Y2 JP S6341612 Y2 JPS6341612 Y2 JP S6341612Y2 JP 1982106896 U JP1982106896 U JP 1982106896U JP 10689682 U JP10689682 U JP 10689682U JP S6341612 Y2 JPS6341612 Y2 JP S6341612Y2
- Authority
- JP
- Japan
- Prior art keywords
- head
- protrusion
- screw
- height adjustment
- hole
- 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
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案はVTRの回転ヘツド・シリンダ装置、
特にそのヘツドの突出し量調整手段に関する。[Detailed description of the invention] This invention is a rotating head cylinder device for a VTR.
In particular, it relates to means for adjusting the amount of protrusion of the head.
第１図は現在の回転ヘツド・シリンダ装置の構
造を示す断面図である。上シリンダ１の円周に対
してヘツド３の突出し量ｄは数10μm位に設定す
るが、この突出し量は磁気テープとの接触具合を
微妙に変化させるため、画像に与える影響も大き
い。したがつてこの突出し量の調整は微妙に調整
する必要があり、数10μmの調整であるため確実
に微調整できることが望まれていた。従来の調整
方法は第１図で説明すると、上シリンダ１にあけ
られた孔１′にドライバ等を入れて、ヘツド・ベ
ース４の端面４′をこじつて突き出させていたが、
ドライバでこじる程度では微調整は難しく突出し
オーバーになり易く、作業に時間を要していた。
図中、２は下シリンダ、５は上シリンダ１の軸方
向に貫通するネジ穴に取付けられるヘツド高さ調
整ネジで、その先端がヘツドベース４に当接する
ことによりヘツド３の高さを調整できるようにな
つている。また６は取付けネジを示す。また、近
年シリンダも小径化しつつある中で、従来のよう
な方式では、上シリンダ自体に余裕がなく、上シ
リンダ１に孔１′をあけることは不可能となりつ
つある。 FIG. 1 is a sectional view showing the structure of a current rotating head cylinder device. The amount of protrusion d of the head 3 relative to the circumference of the upper cylinder 1 is set to about several tens of micrometers, but since this amount of protrusion slightly changes the degree of contact with the magnetic tape, it also has a large effect on the image. Therefore, it is necessary to finely adjust the amount of protrusion, and since the adjustment is several tens of micrometers, it has been desired to be able to make fine adjustments reliably. The conventional adjustment method is explained with reference to FIG. 1. A screwdriver or the like is inserted into a hole 1' drilled in the upper cylinder 1, and the end surface 4' of the head base 4 is forced to protrude.
It is difficult to make fine adjustments by prying with a screwdriver, and the protrusion tends to be excessive, which takes time.
In the figure, 2 is the lower cylinder, and 5 is a head height adjustment screw that is installed in the screw hole that passes through the upper cylinder 1 in the axial direction.The height of the head 3 can be adjusted by touching the head base 4 with its tip. It's getting old. Further, 6 indicates a mounting screw. Furthermore, in recent years, cylinder diameters have become smaller, and with the conventional method, there is no room for the upper cylinder itself, and it is becoming impossible to make the hole 1' in the upper cylinder 1.
本考案の目的は、したがつて、このようなヘツ
ドの突出し量調節のための特別な孔を必要とする
ことなく、ヘツドの突出し量の簡単な微調整を可
能にするヘツドの突出し調整手段を備えた回転ヘ
ツド・シリンダ装置を提供することである。 Therefore, an object of the present invention is to provide a head protrusion adjustment means that allows easy fine adjustment of the head protrusion without requiring a special hole for adjusting the head protrusion. It is an object of the present invention to provide a rotary head cylinder device having the following features.
上記目的を達成するために、本考案による回転
ヘツド・シリンダ装置は、回転シリンダの軸方向
に貫通するネジ穴に取付けられたヘツド高さ調整
ネジと、
ヘツドが固定され前記ヘツド高さ調整ネジ先端
に当接可能なように前記回転シリンダに取付けら
れるヘツドベースと、から成り、
前記ネジ穴に対向するヘツドベース上にヘツド
突出し量調整用突起を設けると共に前記ヘツド高
さ調整ネジの上記突起に対向する部分に上記突起
の逃げ部を設けたことを特徴とする。 In order to achieve the above object, the rotating head/cylinder device according to the present invention includes a head height adjustment screw installed in a screw hole penetrating in the axial direction of the rotation cylinder, and a head fixed to the head height adjustment screw at the tip of the head height adjustment screw. a head base attached to the rotating cylinder so as to be able to come into contact with the head; a head protrusion adjustment protrusion provided on the head base facing the screw hole; and a portion of the head height adjustment screw facing the protrusion. The invention is characterized in that a relief portion for the projection is provided.
本考案の有利な実施の態様においては上記逃げ
部としてヘツド高さ調整ネジが軸方向に貫通する
孔を有している。本考案のさらに有利な実施の態
様においては、ヘツド高さ調整ネジは上シリンダ
の上部まで伸びている。 In an advantageous embodiment of the invention, the recess has a hole through which the head height adjusting screw passes in the axial direction. In a further advantageous embodiment of the invention, the head height adjustment screw extends to the top of the upper cylinder.
以下に図面を参照しながら、実施例を用いて本
考案を一層詳細に説明するが、それらは例示に過
ぎず、本考案の枠を越えることなしにいろいろな
変形や改良があり得ることは勿論である。 The present invention will be explained in more detail below using examples with reference to the drawings, but these are merely illustrative, and it goes without saying that various modifications and improvements may be made without going beyond the scope of the present invention. It is.
第２図は本考案の一実施の態様による回転ヘツ
ド・シリンダ装置の断面図で、第３図は第２図に
示す装置に使用されるヘツド・ベースの斜視図で
ある。ヘツド・ベース４には第３図４に示すよう
に、突起４″が設けられている。このヘツド・ベ
ース４にはヘツド３が固定されている。これを第
２図に示すように上ドラム１に孔４を通してネ
ジ６で仮止めする。この突起４″はヘツド高さ調
整ネジ５にあけられた孔５′の中で移動できるよ
うな寸法に設定されている。つぎに第４図に示す
ようなドライバ８を孔５′に挿入し、突起４″を
溝′に落し込む。そしてドライバを回転させると、
挺子の原理により、ヘツドの突出しを調整するこ
とができる。更に回転式ドライバである為グリツ
プ８″の径を大きくすることによりさらに微調整
がやり易くなる。 FIG. 2 is a sectional view of a rotary head cylinder device according to one embodiment of the present invention, and FIG. 3 is a perspective view of a head base used in the device shown in FIG. As shown in FIG. 3, the head base 4 is provided with a protrusion 4''.The head 3 is fixed to the head base 4.As shown in FIG. 1 through the hole 4 and temporarily fastened with the screw 6. This protrusion 4'' is dimensioned so that it can move within the hole 5' made in the head height adjustment screw 5. Next, insert a driver 8 as shown in Fig. 4 into the hole 5' and drop the protrusion 4'' into the groove'.Then, by rotating the driver
Due to the screw principle, the protrusion of the head can be adjusted. Furthermore, since it is a rotary driver, fine adjustments can be made even more easily by increasing the diameter of the grip 8''.
第５図は本考案の他の一つの実施の態様による
回転ヘツド・シリンダ装置の断面図で、この実施
の態様においては上シリンダのできるだけ上方
に、ヘツド高さ調整ネジ５のネジ部が設けられて
おり、こうすることにより孔５を広くとることが
でき、調整範囲も大きくできる。 FIG. 5 is a sectional view of a rotary head cylinder device according to another embodiment of the present invention, in which the threaded portion of the head height adjustment screw 5 is provided as high as possible in the upper cylinder. By doing so, the hole 5 can be made wider and the adjustment range can also be made wider.
高さ調整ネジ５を取付ける前に、突出し調整を
行なえばネジ５に孔５′をあける必要はないが、
突起４′を逃げるためにネジ５に窪みを設ける必
要がある。しかし、この方法では高さ調整後の再
度突出し調整はできない。また、第５図に示す実
施の態様は、図示のようにヘツド高さ調整ネジ５
の下にドーナツ状の座板７を挿入するもので、こ
れを挿入することにより、ネジ５を回転させたと
きのヘツド・ベースのずれを少なくすることがで
きる。 If you adjust the protrusion before installing the height adjustment screw 5, there is no need to drill a hole 5' in the screw 5.
It is necessary to provide a recess in the screw 5 in order to escape the protrusion 4'. However, with this method, it is not possible to adjust the protrusion again after adjusting the height. Further, the embodiment shown in FIG. 5 has a head height adjustment screw 5 as shown in the figure.
A donut-shaped seat plate 7 is inserted under the head.By inserting this, the displacement of the head and base when the screw 5 is rotated can be reduced.
以上説明した通り、本考案によればヘツドの突
出し量調節のための特別な孔を必要とすることな
く、しかもヘツド高さ調整ネジ及びヘツドベース
に簡単な加工を施すだけでヘツドの突出し量の簡
単な微調整が可能となる。 As explained above, according to the present invention, there is no need for a special hole for adjusting the amount of head protrusion, and moreover, the amount of head protrusion can be easily adjusted by simply machining the head height adjustment screw and the head base. This allows for fine adjustments.
第１図は従来の回転ヘツド・シリンダ装置の構
造を示す断面図、第２図は本考案の一実施の態様
による回転ヘツド・シリンダ装置の断面図、第３
図は第２図に示す装置に使用されるヘツド・ベー
スの斜視図、第４図は本考案の装置で使用される
ドライバの斜視図、第５図は本考案の他の一つの
実施の態様による回転ヘツド・シリンダ装置の断
面図である。
１……上シリンダ、１′……上シリンダにあけ
られた孔、２……下シリンダ、３……ヘツド、４
……ヘツド・ベース、４′……ヘツド・ベースの
端、４″……突起、４……孔、５……ヘツド高
さ調整ネジ、５′……ヘツド高さ調整ネジにあけ
られた孔、６……取付ネジ、７……座板、８……
ドライバ、８′……溝、８″……グリツプ。
FIG. 1 is a cross-sectional view showing the structure of a conventional rotary head cylinder device, FIG. 2 is a cross-sectional view of a rotary head cylinder device according to an embodiment of the present invention, and FIG.
The figure is a perspective view of a head base used in the device shown in FIG. 2, FIG. 4 is a perspective view of a driver used in the device of the present invention, and FIG. 5 is another embodiment of the present invention. FIG. 1... Upper cylinder, 1'... Hole drilled in the upper cylinder, 2... Lower cylinder, 3... Head, 4
...head base, 4'...end of head base, 4''...protrusion, 4...hole, 5...head height adjustment screw, 5'...hole drilled in the head height adjustment screw , 6...Mounting screw, 7...Seat plate, 8...
Driver, 8'...groove, 8''...grip.
Claims (1)
付けられたヘツド高さ調整ネジと、 ヘツドが固定され前記ヘツド高さ調整ネジ先
端に当接可能なように前記回転シリンダに取付
けられるヘツドベースと、から成り、 前記ネジ穴に対向するヘツドベース上にヘツ
ド突出し量調整用突起を設けると共に前記ヘツ
ド高さ調整ネジの上記突起に対向した部分に上
記突起の逃げ部を設けたことを特徴とする回転
ヘツド・シリンダ装置。 ２ 前記逃げ部が前記ヘツド高さ調整ネジの軸方
向の貫通孔であることを特徴とする実用新案登
録請求の範囲第１項記載の回転ヘツド・シリン
ダ装置。[Claims for Utility Model Registration] 1. A head height adjustment screw installed in a screw hole penetrating in the axial direction of a rotary cylinder, and a rotating head that is fixed so that the head can come into contact with the tip of the head height adjustment screw. a head base that is attached to the cylinder; a protrusion for adjusting the protrusion of the head is provided on the head base facing the screw hole; and a relief portion for the protrusion is provided in a portion of the head height adjusting screw opposite to the protrusion; A rotating head cylinder device characterized by: 2. The rotating head cylinder device according to claim 1, wherein the relief portion is a through hole in the axial direction of the head height adjustment screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10689682U JPS5914123U (en) | 1982-07-14 | 1982-07-14 | Rotating head cylinder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10689682U JPS5914123U (en) | 1982-07-14 | 1982-07-14 | Rotating head cylinder device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5914123U JPS5914123U (en) | 1984-01-28 |
| JPS6341612Y2 true JPS6341612Y2 (en) | 1988-11-01 |
Family
ID=30249969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10689682U Granted JPS5914123U (en) | 1982-07-14 | 1982-07-14 | Rotating head cylinder device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5914123U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250763U (en) * | 1975-10-09 | 1977-04-11 | ||
| JPS52138113A (en) * | 1976-05-14 | 1977-11-18 | Hitachi Ltd | Magnetic head adjustment device |
-
1982
- 1982-07-14 JP JP10689682U patent/JPS5914123U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250763U (en) * | 1975-10-09 | 1977-04-11 | ||
| JPS52138113A (en) * | 1976-05-14 | 1977-11-18 | Hitachi Ltd | Magnetic head adjustment device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5914123U (en) | 1984-01-28 |
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