JPH0521694Y2 - - Google Patents
Info
- Publication number
- JPH0521694Y2 JPH0521694Y2 JP1985069760U JP6976085U JPH0521694Y2 JP H0521694 Y2 JPH0521694 Y2 JP H0521694Y2 JP 1985069760 U JP1985069760 U JP 1985069760U JP 6976085 U JP6976085 U JP 6976085U JP H0521694 Y2 JPH0521694 Y2 JP H0521694Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- magnetic
- head drum
- chip
- rotary
- 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 - Lifetime
Links
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、VTRやDAT(デイジタル オー
デイオ テープレコーダ)などのように、磁気テ
ープに斜めに記録を行なうための回転ヘツドドラ
ムの構造に関するものである。[Detailed explanation of the invention] [Field of industrial application] This invention relates to the structure of a rotating head drum for recording diagonally on magnetic tape, such as in VTRs and DATs (digital audio tape recorders). .
第4図a,bは従来の回転ヘツドドラム1を示
す図で、磁気ヘツド2は回転円盤3にシム4を介
してネジ5により取付けられる。磁気ヘツド2
は、セラミツクなどのベース6に磁気記録再生を
行なうため磁路を構成する磁気ヘツドチツプ7が
接着され、該磁路に鎖交するように捲回されたコ
イル8と、信号を供給もしくは取出すための2ケ
所の端子9で構成される。
4a and 4b show a conventional rotary head drum 1, in which a magnetic head 2 is attached to a rotary disk 3 with a shim 4 and a screw 5. magnetic head 2
A magnetic head chip 7 constituting a magnetic path for performing magnetic recording and reproduction is adhered to a base 6 made of ceramic or the like, a coil 8 wound to interlink with the magnetic path, and a coil 8 for supplying or extracting signals. It is composed of terminals 9 at two locations.
上記回転円盤3には、これを回転駆動するため
の回転軸と結合するためのはめ合い穴10、ネジ
部11などが設けられている。また、図示してい
ないが、端子9に信号を供給し、また取出すため
の回転トランスが回転ドラム1には設けられるが
本考案を説明する上で特に必要としないので省略
している。 The rotating disk 3 is provided with a fitting hole 10, a threaded portion 11, etc. for coupling with a rotating shaft for rotationally driving the rotating disk 3. Although not shown, the rotary drum 1 is provided with a rotary transformer for supplying and extracting signals to the terminal 9, but this is omitted as it is not particularly necessary for explaining the present invention.
磁気ヘツドチツプ7には、磁気記録し、また再
生するためのギヤツプ部12があり、この部分は
回転ドラム1に正確な位置関係に取付ける必要が
ある。 The magnetic head chip 7 has a gap portion 12 for magnetic recording and reproduction, and this portion must be attached to the rotating drum 1 in an accurate positional relationship.
DATを例に説明すると、回転円盤3の径は30
mmであり、これに取付けられる2つの磁気ヘツド
2のギヤツプ部12の相対的な位置関係は同一回
転面内で、かつ180°に相対する位置に取付けら
れ、その取付けの許容値は回転軸方向Z、突出方
向Y、接線方向X(第4図b参照)、共に数μm以
内である。一方、磁気ヘツド2の取付け面に対す
るギヤツプ12の相対的な位置が磁気ヘツド毎に
一定でないので、回転面を揃えるために1つの回
転円盤3に取付けられる2つの磁気ヘツド2毎に
厚みの異なるシム4を選択する必要がある。ま
た、突出方向、接線方向の調整は取付け面上で磁
気ヘツド2を摺動させ、顕微鏡付の治具により行
ない、これにより位置決めをしネジ5により固定
する。ところがこのような構造の回転ヘツドドラ
ムでは、磁気ヘツド毎にシム4を選択せねばなら
ず、組立上工程が複雑となる欠点があつた。さら
にその回転ヘツドドラムの径が20mm、15mmと小さ
いDATの場合には、磁気ヘツドをも小さくする
必要がある。しかし取付けネジ5やベース6の大
きさを極端に小さくすることはできず、結局小形
の回転ヘツドドラムを得ることが困難であつた。 Taking DAT as an example, the diameter of rotating disk 3 is 30
mm, and the relative positional relationship of the gap portions 12 of the two magnetic heads 2 attached to this is within the same rotation plane and at positions opposite to each other at 180 degrees, and the tolerance for the attachment is in the direction of the rotation axis. Z, protrusion direction Y, and tangential direction X (see FIG. 4b) are all within several μm. On the other hand, since the relative position of the gap 12 with respect to the mounting surface of the magnetic head 2 is not constant for each magnetic head, shims of different thickness are used for each of the two magnetic heads 2 attached to one rotating disk 3 in order to align the rotating surfaces. You need to select 4. Adjustments in the protrusion direction and tangential direction are made by sliding the magnetic head 2 on the mounting surface and using a jig equipped with a microscope. However, the rotary head drum having such a structure has the disadvantage that the shim 4 must be selected for each magnetic head, which complicates the assembly process. Furthermore, in the case of a DAT whose rotating head drum has a small diameter of 20 mm or 15 mm, the magnetic head must also be made smaller. However, the sizes of the mounting screws 5 and the base 6 cannot be made extremely small, and it has been difficult to obtain a small rotating head drum.
そこで本件発明者はこのような問題点を解決し
たものとして、磁気ヘツドチツプを回転ヘツドド
ラム本体に直接取付けるとともに、該ドラム本体
の、上記磁気ヘツドチツプの取付けられたチツプ
取付部を、弾性変形可能な薄い板状構造とし、押
しネジ等の押圧手段により上記チツプ取付部を偏
移させるようにした改良型の回転ヘツドドラムを
すでに開発している。 In order to solve these problems, the inventor of the present invention attached the magnetic head chip directly to the rotary head drum body, and also fixed the chip mounting part of the drum body to which the magnetic head chip was attached by using an elastically deformable thin plate. An improved type of rotary head drum has already been developed which has a similar structure and in which the chip mounting portion is displaced by a pressing means such as a push screw.
以下、この改良型の回転ヘツドドラムの構成を
第2図により説明する。第4図と同一の構成部分
には同一符号を付す。回転円盤3には、磁気ヘツ
ドチツプ7を取付ける部分の厚みBを薄くして弾
性変形可能な薄板状部30を形成するために、回
転軸に対して直角な面に平行な切り込み部13が
設けられている。また磁気ヘツドチツプ取付け部
近傍Cには磁気ヘツドチツプ7の捲線部を逃げる
ための切り欠き部14が設けられており、また、
コイル8と信号を授受するための端子9も設けら
れている。この端子9は回転円盤3が樹脂の場合
は金属部を直接接着もしくは埋め込むことにより
構成することができるが、アルミニウムの場合は
絶縁部を介して取付ける。またヘツドを取付ける
回転円盤3の底面上で、かつ磁気ヘツド取り付け
部と円盤の中心を交ぶ線上にネジ穴15が設けら
れ、該ネジ穴15には磁気ヘツドチツプ7の取付
けられる面とは反対側の面から押しネジ16がネ
ジ込まれている。このネジ穴15は回転円盤3で
2つの磁気ヘツドチツプ7と回転円盤3の中心を
結ぶ線上で、かつ中心方向にあり、切り込み部1
3の最奥部Dより外に設けられている。 The structure of this improved rotary head drum will be explained below with reference to FIG. Components that are the same as those in FIG. 4 are given the same reference numerals. The rotary disk 3 is provided with a cut portion 13 parallel to a plane perpendicular to the rotation axis in order to reduce the thickness B of the portion where the magnetic head chip 7 is attached to form an elastically deformable thin plate portion 30. ing. In addition, a notch 14 is provided in the vicinity C of the magnetic head chip mounting portion to allow the winding portion of the magnetic head chip 7 to escape.
A terminal 9 for transmitting and receiving signals to and from the coil 8 is also provided. If the rotary disc 3 is made of resin, the terminal 9 can be constructed by directly adhering or embedding a metal part, but if it is made of aluminum, it is attached via an insulating part. Further, a screw hole 15 is provided on the bottom surface of the rotary disk 3 on which the head is attached and on a line that intersects the magnetic head attachment part and the center of the disk, and the screw hole 15 is provided on the opposite side to the surface on which the magnetic head chip 7 is attached. A set screw 16 is screwed in from the surface. This screw hole 15 is located on the line connecting the two magnetic head tips 7 and the center of the rotating disk 3, and in the direction of the center.
It is provided outside the innermost part D of 3.
第3図に磁気ヘツドチツプ7と取り付け部近傍
Cを拡大して示す。同図cは同図aのc−c
線断面を示す図である。同図cは同図aのc−
c断面を示す。磁気ヘツドチツプ7はセンダス
トやフエライドなどの磁性材よりなるコアー1
7,18によりリング形の磁路を構成し、磁路の
一部にギヤツプ部12を設けている。ギヤツプ部
の巾が磁気記録に作用するもので、これを通常ト
ラツク巾19という。トラツク巾19は磁性材1
7,18の厚みよりも切り欠き部20によつて小
さくなつており、これは磁路の能率をよくするた
めになされたものである。該切り欠き部20は空
間である場合もあるが、ガラスなどの非磁性材で
構成されることが多い。このように構成された磁
気ヘツドチツプ7は接着材21で回転円盤3に固
定されている。 FIG. 3 shows an enlarged view of the magnetic head chip 7 and the vicinity of the mounting portion C. c in the same figure is c-c in the same figure a
It is a figure showing a line cross section. Figure c is c- in figure a.
A cross-section is shown. The magnetic head chip 7 has a core 1 made of a magnetic material such as sendust or ferride.
7 and 18 constitute a ring-shaped magnetic path, and a gap portion 12 is provided in a part of the magnetic path. The width of the gap affects magnetic recording, and is usually called the track width 19. Track width 19 is made of magnetic material 1
7 and 18 due to the cutout portion 20, this is done to improve the efficiency of the magnetic path. Although the notch 20 may be a space, it is often made of a non-magnetic material such as glass. The magnetic head chip 7 constructed in this manner is fixed to the rotating disk 3 with an adhesive 21.
次に作用効果について説明する。 Next, the effects will be explained.
ここで、ギヤツプ12が回転軸方向Z、突出方
向Y、接線方向Xに数μmの精度で取付ける必要
があることは従来の例で説明したと同様である。
上記改良型の回転ヘツドドラムにおいて突出方
向、接線方向の精度は、従来と同様に磁気ヘツド
チツプ7を取付け面上で治具により位置決めした
後、接着材21により固定することにより得られ
る。しかし回転面の位置は、磁気ヘツドチツプ7
の取付け端22に対するギヤツプ部12の位置が
磁気ヘツドチツプ毎にバラつくためその精度を確
保できない。 Here, as explained in the conventional example, the gap 12 needs to be mounted with an accuracy of several μm in the rotation axis direction Z, the protrusion direction Y, and the tangential direction X.
In the improved rotary head drum, accuracy in the protrusion direction and the tangential direction is obtained by positioning the magnetic head chip 7 on the mounting surface using a jig and then fixing it with the adhesive 21, as in the prior art. However, the position of the rotating surface is different from that of the magnetic head chip 7.
Since the position of the gap portion 12 relative to the mounting end 22 of the magnetic head chip varies from magnetic head chip to magnetic head chip, its accuracy cannot be ensured.
そこで上記改良型の回転ヘツドドラムでは、押
しネジ16を第3図cに示すように回動せしめる
ことにより、E点を押圧し、結果としてギヤツプ
12をF方向に偏位せしめて2つの磁気ヘツドチ
ツプ7のギヤツプ12の回転面を揃えることがで
きる。 Therefore, in the above-mentioned improved rotary head drum, by rotating the push screw 16 as shown in FIG. The rotation surfaces of the gap 12 can be aligned.
また、磁気ヘツドチツプ7を回転ヘツドドラム
に直接接着するので、シムや取付けネジが不要で
安価なものを得られる。 Furthermore, since the magnetic head chip 7 is directly bonded to the rotating head drum, no shims or mounting screws are required, and an inexpensive product can be obtained.
ところが、このような構成の改良型の回転ヘツ
ドドラム1では、該回転円盤3の磁気ヘツドチツ
プ7の取付部を弾性変形可能な構造とするため
に、回転円盤3の外周全面に渡つて切り込み部1
3を形成しており、このため該切り込み部13
の、上記回転円盤3の周囲に巻回される磁気テー
プへの影響が大きく、磁気テープの劣化につなが
るという問題点がある。
However, in the improved rotary head drum 1 having such a configuration, in order to make the mounting portion of the rotary disk 3 for the magnetic head chip 7 elastically deformable, the cut portion 1 is formed over the entire outer circumference of the rotary disk 3.
3, and therefore the notch 13
This has a problem in that it has a large effect on the magnetic tape wound around the rotating disk 3, leading to deterioration of the magnetic tape.
この考案は上記のような問題点を解決するため
になされたもので、磁気テープへの悪影響を小さ
く抑えつつ、磁気ヘツドチツプの高さ位置の調整
が可能であつて、しかもその加工作業が簡単な構
造の回転ヘツドドラムを得ることを目的とする。 This idea was made to solve the above problems, and it is possible to adjust the height position of the magnetic head tip while minimizing the negative effect on the magnetic tape, and it is easy to process. The purpose is to obtain a rotating head drum structure.
この考案に係る回転ヘツドドラムは、厚い回転
ヘツドドラム本体の、磁気ヘツドチツプが取付け
られるチツプ取付部の下側に、外周側面から中心
に向けて略半円弧状切込みを入れて、チツプ取付
部を弾性変形可能な薄い板状構造とし、この薄板
状のチツプ取付部を押圧変形させて、上記磁気ヘ
ツドチツプの上下の位置調整を行うようにしたも
のである。
The rotary head drum according to this invention has a substantially semi-circular arc cut cut from the outer circumferential side toward the center on the lower side of the chip mounting part where the magnetic head chips are attached to the thick rotary head drum body, so that the chip mounting part can be elastically deformed. The magnetic head chip has a thin plate-like structure, and the thin plate-like chip mounting portion is pressed and deformed to adjust the vertical position of the magnetic head chip.
この考案においては、磁気ヘツドチツプの取付
部を弾性変形可能な構造とし、これをネジ等の押
圧手段により変形させて磁気ヘツドチツプの上下
位置の調整を行うようにしたから、上記磁気ヘツ
ドチツプの位置合わせ作業が簡単になり組立工程
を簡略化できる。また、上記回転ヘツドドラム本
体の、チツプ取付部の下側には略半円弧状切込み
を入れて、チツプ取付部を弾性変形可能な薄い板
状構造としたので、チツプ取付部が変位可能な構
造の回転ヘツドドラムを、この回転ヘツドドラム
本体側面に切り込みを入れるだけの簡単な加工作
業により実現することができる。また回転ヘツド
ドラム本体に形成される切り込みは、略半円弧状
のものであるため、上記回転ヘツドドラム本体の
側面に形成される上記切り込みによる溝の長さは
小さく、上記切り込み部の磁気テープへの影響を
小さく抑えることができる。
In this invention, the mounting part of the magnetic head chip has an elastically deformable structure, and is deformed by a pressing means such as a screw to adjust the vertical position of the magnetic head chip. This simplifies the assembly process. In addition, an approximately semi-circular cut is made on the lower side of the tip attachment part of the rotary head drum body, and the tip attachment part is made into a thin plate-like structure that can be elastically deformed, so that the tip attachment part can be moved. The rotary head drum can be realized by a simple processing operation of just making a notch in the side surface of the rotary head drum main body. In addition, since the notch formed on the rotary head drum body is approximately semicircular, the length of the groove formed on the side surface of the rotary head drum body by the notch is small, and the influence of the notch on the magnetic tape is small. can be kept small.
以下この考案の一実施例を図について説明す
る。
An embodiment of this invention will be described below with reference to the drawings.
第1図は本考案の一実施例による回転ヘツドド
ラムを説明するための図であり、第1図aは正面
図、第1図bは平面図、第1図cは第1図aの
c−c線断面図である。 FIG. 1 is a diagram for explaining a rotary head drum according to an embodiment of the present invention, in which FIG. 1a is a front view, FIG. 1b is a plan view, and FIG. It is a sectional view taken along the c line.
図において、100は本実施例の回転ヘツドド
ラムで、これは厚い回転円盤3の、磁気ヘツドチ
ツプ7が取付けられるチツプ取付部40の下側
に、外周側面から中心に向けて略半円弧状切込み
13′を入れて、上記チツプ取付部40を弾性変
形可能な薄い板状構造とし、この薄板状のチツプ
取付部40を押しネジ16により押圧変形させ
て、上記磁気ヘツドチツプ7の上下の位置調整を
行うようにしたものである。また上記磁気ヘツド
チツプ7は、上記回転円盤3の底面に対して上記
磁気ヘツドチツプ7の厚み程度の段差を付けて一
段落としたチツプ載置面40a上に載置されてい
る。その他の構成は上記第2図及び第3図に示す
従来の回転ヘツドドラム1と同一の構造となつて
いる。 In the figure, reference numeral 100 denotes the rotary head drum of this embodiment, which has a substantially semicircular arc-shaped cut 13' extending from the outer circumferential side toward the center on the lower side of the chip attachment part 40 to which the magnetic head chip 7 is attached to the thick rotary disk 3. The chip mounting part 40 is made into a thin plate-like structure that can be elastically deformed, and the thin plate-shaped chip mounting part 40 is pressed and deformed by a push screw 16 to adjust the vertical position of the magnetic head chip 7. This is what I did. Further, the magnetic head chip 7 is placed on a chip mounting surface 40a that is level with the bottom surface of the rotary disk 3 and has a step approximately equal to the thickness of the magnetic head chip 7. The rest of the structure is the same as the conventional rotary head drum 1 shown in FIGS. 2 and 3 above.
このような構造の本実施例の回転ヘツドドラム
100では、上記チツプ取付部40を弾性変形可
能な薄い板状構造とし、この薄板状のチツプ取付
部7を押しネジ16により押圧変形させて上記磁
気ヘツドチツプ7の上下の位置調整を行うように
したので、上記磁気ヘツドチツプ7の位置合わせ
作業が簡単になり、組立工程を簡略化できる。 In the rotary head drum 100 of this embodiment having such a structure, the chip mounting portion 40 has an elastically deformable thin plate structure, and the thin plate-shaped chip mounting portion 7 is pressed and deformed by the push screw 16 to attach the magnetic head chip. Since the vertical position of the magnetic head chip 7 is adjusted, the positioning work of the magnetic head chip 7 is simplified, and the assembly process can be simplified.
また上記回転円盤3の、チツプ取付部の下側に
略半円弧状切込み13′を入れて、チツプ取付部
40を弾性変形可能な薄い板状構造としたので、
チツプ取付部7が変位可能な構造の回転ヘツドド
ラム100を、この回転円盤3の側面に切り込み
を入れるだけの簡単な加工作業により実現するこ
とができる。さらに回転円盤3の側面に形成され
る切り込み部13′は、略半円弧状のものである
ため、上記回転円盤の側面に形成される上記切り
込みによる溝の長さは小さく、上記切り込み部1
3′の磁気テープへの影響を小さく抑えることが
できる。 In addition, a substantially semicircular arc-shaped cut 13' is made on the lower side of the tip attachment part of the rotating disk 3, and the tip attachment part 40 is made into a thin plate-like structure that can be elastically deformed.
A rotary head drum 100 having a structure in which the chip mounting portion 7 is movable can be realized by a simple processing operation of making a notch in the side surface of the rotary disk 3. Further, since the notch 13' formed on the side surface of the rotary disk 3 has a substantially semicircular arc shape, the length of the groove formed on the side surface of the rotary disk 3 due to the notch is small.
3' on the magnetic tape can be suppressed to a small level.
以上のようにこの考案によれば、磁気ヘツドチ
ツプの取付部を弾性変形可能な構造とし、これを
ネジ等の押圧手段により変形させて磁気ヘツドチ
ツプの上下位置の調整を行うようにしたので、上
記磁気ヘツドチツプの位置合わせ作業が簡単にな
り組立工程を簡略化できる効果がある。
As described above, according to this invention, the mounting part of the magnetic head chip has a structure that can be elastically deformed, and this is deformed by a pressing means such as a screw to adjust the vertical position of the magnetic head chip. This has the effect of simplifying the head chip positioning work and simplifying the assembly process.
また、上記回転ヘツドドラム本体の、チツプ取
付部の下側に略半円状切込みを入れて、チツプ取
付部を弾性変形可能な薄い板状構造としたので、
チツプ取付部が変位可能な構造の回転ヘツドドラ
ムを、この回転ヘツドドラム本体側面に切り込み
を入れるだけの簡単な加工作業により実現するこ
とができる効果がある。 In addition, an approximately semicircular cut is made on the lower side of the tip attachment portion of the rotating head drum body, and the tip attachment portion is made into a thin plate-like structure that can be elastically deformed.
There is an effect that a rotary head drum having a structure in which the chip mounting portion can be displaced can be realized by a simple processing operation of just making a notch in the side surface of the rotary head drum main body.
さらに回転ヘツドドラム本体に形成される切り
込みは、略半円弧状のものであるため、上記回転
ヘツドドラム本体の側面に形成される上記切り込
みによる溝の長さは小さく、上記切り込み部の磁
気テープへの影響を小さく抑えることができる効
果がある。 Furthermore, since the notch formed on the rotary head drum body has a substantially semicircular arc shape, the length of the groove formed on the side surface of the rotary head drum body due to the notch is small, and the influence of the notch portion on the magnetic tape is small. This has the effect of keeping it small.
第1図aは本考案の一実施例による回転ヘツド
ドラムを示す正面図、第1図cはその1部断面
図、第1図bはその平面図、第2図aは従来の改
良型の回転ヘツドドラムを示す正面図、第1図b
はその平面図、第3図aは上記改良型の回転ヘツ
ドドラムにおける磁気ヘツドチツプ取付部近傍を
拡大して示す正面図、第3図bはその平面図、第
3図cは第3図aのc−c線断面図、第4図
aは従来の回転ヘツドドラムを示す正面図、第4
図bはその平面図である。
3……回転円盤、7……磁気ヘツドチツプ、1
2……ギヤツプ、13′……略半円弧状切込み部、
14……切り欠き部、15……ネジ穴、16……
押しネジ、40……磁気ヘツドチツプ取付部、4
0a……磁気ヘツドチツプ載置面、100……回
転ヘツドドラム。なお図中同一符号は同一又は相
当部分を示す。
Fig. 1a is a front view showing a rotating head drum according to an embodiment of the present invention, Fig. 1c is a partial sectional view thereof, Fig. 1b is a plan view thereof, and Fig. 2a is a conventional improved rotary head drum. Front view showing the head drum, Figure 1b
3 is a plan view thereof, FIG. 3 a is an enlarged front view showing the vicinity of the magnetic head chip mounting portion of the above-mentioned improved rotary head drum, FIG. 3 b is a plan view thereof, and FIG. 3 c is the c of FIG. -c line sectional view; Figure 4a is a front view showing a conventional rotating head drum;
Figure b is a plan view thereof. 3...Rotating disk, 7...Magnetic head chip, 1
2...gap, 13'...approximately semicircular arc-shaped notch,
14...Notch, 15...Screw hole, 16...
Push screw, 40...Magnetic head chip mounting part, 4
0a... Magnetic head chip mounting surface, 100... Rotating head drum. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
ツドドラムにおいて、 厚い回転ヘツドドラム本体をその側面から回転
軸に対し垂直方向に略半円弧状に切り込んで設け
られた薄板状部と、 該薄板状部に直接に接着して設けられた磁気ヘ
ツドチツプと、 上記薄板状部を押圧変形させて上記磁気ヘツド
チツプの上下の位置調整を行うための押圧手段と
を備えたことを特徴とする回転ヘツドドラム。[Scope of Claim for Utility Model Registration] In a rotating head drum that forms tracks diagonally on a magnetic tape, a thin plate-shaped portion is provided by cutting a thick rotating head drum body into a substantially semicircular arc shape from the side surface in a direction perpendicular to the rotation axis. , a magnetic head chip provided by directly adhering to the thin plate-like portion; and a pressing means for pressing and deforming the thin plate-like portion to adjust the vertical position of the magnetic head chip. Rotating head drum.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985069760U JPH0521694Y2 (en) | 1985-05-10 | 1985-05-10 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985069760U JPH0521694Y2 (en) | 1985-05-10 | 1985-05-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6239211U JPS6239211U (en) | 1987-03-09 |
JPH0521694Y2 true JPH0521694Y2 (en) | 1993-06-03 |
Family
ID=30910781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1985069760U Expired - Lifetime JPH0521694Y2 (en) | 1985-05-10 | 1985-05-10 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0521694Y2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5936024B2 (en) * | 1981-06-12 | 1984-08-31 | 有限会社丸正刺「しゆう」 | Cylindrical or bag-shaped textile product embroidery equipment |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5936024U (en) * | 1982-08-31 | 1984-03-06 | ソニー株式会社 | Magnetic head height adjustment device |
-
1985
- 1985-05-10 JP JP1985069760U patent/JPH0521694Y2/ja not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5936024B2 (en) * | 1981-06-12 | 1984-08-31 | 有限会社丸正刺「しゆう」 | Cylindrical or bag-shaped textile product embroidery equipment |
Also Published As
Publication number | Publication date |
---|---|
JPS6239211U (en) | 1987-03-09 |
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