JPH0235649A - Ultrasonic tape guide - Google Patents

Ultrasonic tape guide

Info

Publication number
JPH0235649A
JPH0235649A JP63185242A JP18524288A JPH0235649A JP H0235649 A JPH0235649 A JP H0235649A JP 63185242 A JP63185242 A JP 63185242A JP 18524288 A JP18524288 A JP 18524288A JP H0235649 A JPH0235649 A JP H0235649A
Authority
JP
Japan
Prior art keywords
tape guide
ultrasonic
tape
support member
ultrasonic vibrator
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
Application number
JP63185242A
Other languages
Japanese (ja)
Inventor
Etsuro Saito
悦朗 斉藤
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP63185242A priority Critical patent/JPH0235649A/en
Publication of JPH0235649A publication Critical patent/JPH0235649A/en
Pending legal-status Critical Current

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  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

PURPOSE:To efficiently oscillate a tape guide with large magnitude and to lower the friction coefficient of a tape by providing an ultrasonic excitator at the notched part of a supporting member, and oscillating it in a direction almost advancing to the tape guide. CONSTITUTION:The device is constituted in such a way that the notched part 14 is provided at part of the supporting member 13 which supports the tape guide 11, and the ultrasonic excitator 15 is provided in the notched part 14, and the ultrasonic excitator 15 can be oscillated in the direction to almost advance to the tape guide 11. Thereby, it is possible to excite the tape guide 11 by utilizing the oscillatory energy in the ultrasonic excitator 15 completely, and also, to excite the tape guide with high efficiency by the large magnitude by magnifying the magnitude of the ultrasonic excitator 15 with large magnification.

Description

【発明の詳細な説明】 〔産業上の利用分野] 本発明は、VTR’Pテープレコーダ等の記録再生装置
や各種情報処理装置に適用するのに最適な超音波テープ
ガイドに関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ultrasonic tape guide that is most suitable for application to recording/reproducing devices such as VTR'P tape recorders and various information processing devices.

〔発明の概要〕[Summary of the invention]

本発明は、超音波加振子によって、テープガイドを加振
させることKよって、案内するテープの摩擦係数を小さ
くするようにし、た超音波テープガイドにおいて、超音
波加振子をテープガイドを支持する支持部材の切欠き内
に取付けることにより。
The present invention provides an ultrasonic tape guide in which the tape guide is vibrated by an ultrasonic vibrator to reduce the coefficient of friction of the tape to be guided. By installing within the cutout of the member.

テープガイドを大きな振幅で加振できる士に、手型化を
可能にしたものである。
This allows the tape guide to be made into a hand-shaped device by vibrating it with a large amplitude.

〔従来の技術〕[Conventional technology]

この種超音波テープガイドの従来例とし、て1例えば、
特開昭54−18710号公報がある。
As a conventional example of this type of ultrasonic tape guide, for example,
There is Japanese Unexamined Patent Publication No. 18710/1983.

この従来例は、第5図に示すように、磁気テープ1を案
内するテープガイド2の内部に圧電素子である超音波加
振子3を取付け、その超音波加振子3によってテープガ
イド2を加振させろようにしたものである。
As shown in FIG. 5, in this conventional example, an ultrasonic vibrator 3, which is a piezoelectric element, is attached inside a tape guide 2 that guides a magnetic tape 1, and the tape guide 2 is vibrated by the ultrasonic vibrator 3. I was trying to get him to do it.

なおこの他にも、従来の超音波テープガイドとして1例
えば、第6図に示すように、ベース4に超音波加振子3
を介してテープガイド2を取付けたもの。第7図に示す
ように、一端にテープガイド2を取付けた支持部材5の
他端をベース4に固着し、支持部材5の長さ方向の中間
部に直交する超音波振動子3を支持部材5とベース4と
の間に取付けたもの等がある。
In addition to this, as a conventional ultrasonic tape guide 1, for example, as shown in FIG.
Tape guide 2 is attached via the . As shown in FIG. 7, the other end of the support member 5 with the tape guide 2 attached to one end is fixed to the base 4, and the ultrasonic transducer 3 perpendicular to the longitudinal middle part of the support member 5 is attached to the support member. 5 and the base 4.

ところで、この種超音波テープガイドは、第4図に示す
ように、テープガイド2の振幅が大きくなればなる程、
磁気テープ1の摩擦係数が小さくなると言う、振幅依存
性を有している。
By the way, in this type of ultrasonic tape guide, as shown in FIG. 4, the larger the amplitude of the tape guide 2, the more
The magnetic tape 1 has an amplitude dependence in which the coefficient of friction decreases.

し、かじ、テープガイド2の振幅を大きくするために超
音波加振子6の振動を大きくすると、それに比例し、て
、超音波加振子6の発熱量が大きくなる特性がある。
However, when the vibration of the ultrasonic vibrator 6 is increased in order to increase the amplitude of the rudder and tape guide 2, the amount of heat generated by the ultrasonic vibrator 6 increases in proportion to the vibration.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

従って、第5図及び第6図のように、超音波加振子乙に
よってテープガイド2を直接加振する方式では、超音波
加振子3より発生される熱が磁気テープ1に伝わり易(
、磁気テープ1を熱によって損傷させ易いと言う問題点
がある。
Therefore, as shown in FIGS. 5 and 6, in the method in which the tape guide 2 is directly vibrated by the ultrasonic vibrator 3, the heat generated by the ultrasonic vibrator 3 is easily transmitted to the magnetic tape 1 (
However, there is a problem in that the magnetic tape 1 is easily damaged by heat.

一方、第7図のように、超音波加振子6によって支持部
材5を介してテープガイド2を間接的に加振する方式で
は、超音波加振子6より発生される熱が磁気テープ1に
伝わり難いが、支持部材5及び超音波加振子3の取付け
に要す^−スが非常に大きくなるため、小型化が要求さ
れる記録再生装置への実用化が困難であり、特に、可動
式テープガイドには適用不可であると言った問題点があ
った。
On the other hand, in a method in which the tape guide 2 is indirectly vibrated by the ultrasonic vibrator 6 via the support member 5 as shown in FIG. 7, the heat generated by the ultrasonic vibrator 6 is transmitted to the magnetic tape 1. However, since the space required to attach the support member 5 and the ultrasonic vibrator 3 is extremely large, it is difficult to put it to practical use in recording and reproducing devices that require miniaturization. There were issues with the guide that said it was not applicable.

また、第5図及び第6因の構造では、超音波加振子6の
振幅が何等拡大されず、第7図に示し、た構造では、超
音波加振子3の振幅が支持部材5で成る程度拡大される
が、その拡大率は低い。
Furthermore, in the structures of FIGS. 5 and 6, the amplitude of the ultrasonic vibrator 6 is not expanded in any way, and in the structure shown in FIG. It will be expanded, but the rate of expansion will be low.

し、かも、第6図及び第7図に示した構造では。However, in the structure shown in FIGS. 6 and 7.

超音波加振子3の振動エネルギーの一部がペース4に吸
収されるため、その振動エネルギーを100%有効に利
用してテープガイド2を加振することができず、テープ
ガイド2の振幅の大きさに限度があると言った問題点が
あった。
Since a part of the vibration energy of the ultrasonic vibrator 3 is absorbed by the pace 4, the vibration energy cannot be used 100% effectively to vibrate the tape guide 2, and the amplitude of the tape guide 2 is large. There was a problem that there was a limit to the

本考案は、テープガイドを大きな振幅で効率良(加振さ
せることができる上知、小型化が可能な超音波テープガ
イドを提供することを目的とじている。
The object of the present invention is to provide an ultrasonic tape guide that can vibrate the tape guide efficiently with a large amplitude and can be miniaturized.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的を達成するために1本発明の超音波テープガイ
ドは、テープガイドを支持する支持部材の一部に切欠き
を設け、この切欠き内に超音波加振子を取付けて、その
超音波加振子を上記テープガイドにほぼ向う方向に揚動
させるように構成し。
In order to achieve the above object, the ultrasonic tape guide of the present invention is provided with a notch in a part of the support member that supports the tape guide, an ultrasonic vibrator is installed in the notch, and the ultrasonic tape guide is The pendulum is configured to be lifted in a direction substantially facing the tape guide.

たものである。It is something that

〔作 用〕[For production]

上記のように構成された超音波テープガイドは。 The ultrasonic tape guide is configured as described above.

超音波加振子の振動エネルギーを100%有効に利用し
、てテープガイドを加振することができ、し。
The vibration energy of the ultrasonic vibrator can be used 100% effectively to vibrate the tape guide.

なる非常に大きな拡大率で拡大してテープガイドを加振
できるので、テープガイドを大きな振幅で効率良く加振
できる。
Since the tape guide can be vibrated while being expanded at a very large magnification ratio, the tape guide can be efficiently vibrated with a large amplitude.

それでいて、超音波加振子は支持部材の切欠き内に組込
まれているので、超音波テープガイド全体の小型化が可
能であff、L、かも、超音波加振子を支持部材と一体
に可動させることが可能である。
However, since the ultrasonic vibrator is built into the notch of the support member, it is possible to downsize the entire ultrasonic tape guide. Is possible.

〔実施例〕〔Example〕

以下1本発明をVTRK適用した超音波テープガイ、ド
の一実施例を第1図〜第6図を参照して説明する。
An embodiment of an ultrasonic tape guide to which the present invention is applied to a VTRK will be described below with reference to FIGS. 1 to 6.

まず、第1図は超音波テープガイド11を示したもので
あって。テープガイド12がアーム形状等の支持部材1
3の先端13a上に垂直に取付けられ、支持部材13の
長さ方向の中間の一部の一側部にほぼコ字状の切欠き1
4が設けられ、超音波加振子15が切欠き14内に支持
部材16の長さ方向とほぼ平行に取付けられている。こ
の超音波加振子15は複数の圧電素子15aを支持部材
13の長さ方向とほぼ平行な方向に積庖させた圧電素子
積層体で構成されていて、その超音波加振子15は支持
部材13の先端13aのテープガイド12にitぼ向5
方向である矢印a方向に振動されるよ5に構成されてい
る。
First, FIG. 1 shows an ultrasonic tape guide 11. The tape guide 12 is an arm-shaped support member 1
A substantially U-shaped notch 1 is installed vertically on the tip 13a of the support member 13, and is provided on one side of a longitudinally intermediate portion of the support member 13.
4 is provided, and an ultrasonic vibrator 15 is installed within the notch 14 substantially parallel to the longitudinal direction of the support member 16. This ultrasonic vibrator 15 is composed of a piezoelectric element laminate in which a plurality of piezoelectric elements 15a are stacked in a direction substantially parallel to the longitudinal direction of the support member 13. It is facing toward the tape guide 12 at the tip 13a of the
5 to be vibrated in the direction of arrow a.

この超音波テープガイド11によれば、第2図罠示すよ
うに、超音tf!12IO振子15の矢、印a方向の振
動によって、支持部材13の先端13aが基部13bに
対して切欠き14が一側部に形成されている中間小幅部
13cで曲げられて矢印す方向に振動され、この先端1
3aと一体にテープガイド12が矢印す方向にW振され
る。
According to this ultrasonic tape guide 11, as shown in FIG. 2, ultrasonic tf! When the 12IO pendulum 15 vibrates in the direction of the arrow a, the tip 13a of the support member 13 bends with respect to the base 13b at the intermediate narrow portion 13c where the notch 14 is formed on one side, and vibrates in the direction of the arrow. and this tip 1
3a, the tape guide 12 is swung in the direction of the arrow.

この際、超音波加振子15の振動エネルギーは100%
支持部材13の先端15a’に矢印す方向に曲げるよう
に作用するから、超音波加振子15の振動エネルギーを
100%有効に利用し、て、テープガイド12を加振す
ることができる。
At this time, the vibration energy of the ultrasonic vibrator 15 is 100%.
Since the tip 15a' of the support member 13 is bent in the direction indicated by the arrow, the vibration energy of the ultrasonic vibrator 15 can be used 100% effectively to vibrate the tape guide 12.

しかも、切欠き14のテープガイド12gaの端面14
aとテープガイド12のセンターとの間の距離をAIと
し、超音波加振子15のセンターと中間小幅部13cの
切欠き14側の側面13dとの間の距離を−exとする
と、超音波加振子15の振幅が、′Jなる非常に大きな
拡大率で拡大されて、テex −フガイド12を矢印す方向に加振することができる。
Moreover, the end surface 14 of the tape guide 12ga of the notch 14
If the distance between a and the center of the tape guide 12 is AI, and the distance between the center of the ultrasonic vibrator 15 and the side surface 13d on the notch 14 side of the intermediate narrow portion 13c is -ex, then ultrasonic The amplitude of the pendulum 15 is expanded by a very large magnification factor 'J', and the ex-f guide 12 can be excited in the direction indicated by the arrow.

従って、支持部材13の長さに対する幅を小さくする程
、テープガイド12を大きな振幅でm振させることがで
きる。
Therefore, the smaller the width relative to the length of the support member 13, the greater the amplitude of the tape guide 12 can be caused to oscillate.

なお、超音波W振子15の振動は支持部材13を介して
テープガイド12に伝達されるから、超音波加振子15
の振動によって発生される熱は磁気テープ16には伝わ
り難い。
Note that since the vibration of the ultrasonic W pendulum 15 is transmitted to the tape guide 12 via the support member 13, the ultrasonic W pendulum 15
The heat generated by the vibrations is difficult to transfer to the magnetic tape 16.

そして、超音波加振子15が支持部材16の切欠き14
内に組込まれているので、支持部材13の占有面!R内
に超音波加振子15を収容できて。
Then, the ultrasonic vibrator 15 is inserted into the notch 14 of the support member 16.
Since it is incorporated within the support member 13, it occupies the surface occupied by the support member 13! The ultrasonic vibrator 15 can be housed inside R.

超音波加振子15の取付J\−スを省略できる。The installation of the ultrasonic vibrator 15 can be omitted.

従って、超音波テープガイド11全体の小型化が可能で
ある。
Therefore, the entire ultrasonic tape guide 11 can be downsized.

また、超音波210振子15を支持部材13と一体に可
動させることが可能である。
Further, it is possible to move the ultrasonic 210 pendulum 15 integrally with the support member 13.

この超音波テープガイド11は以上のような特徴を有し
ているので1例えば、第3図に示したVTR17等の多
数の固定テープガイド18には勿論のこと、テンション
アーム19a、19bや回転ヘッドドラム20の出入ロ
ガイド21a、21b等の回転アーム方式やスライドブ
ロック方式等の多数の可動テープガイド22に容易に実
施することができる。
Since this ultrasonic tape guide 11 has the above-mentioned characteristics, it can be used not only for a large number of fixed tape guides 18 such as the VTR 17 shown in FIG. The present invention can be easily applied to a large number of movable tape guides 22 such as rotary arm type guides 21a and 21b for entering and exiting the drum 20, slide block type, etc.

以上1本発明の実施例に付き述べたが1本発明は上記実
施例に限定されることなく1本発E!Ao技術的思想に
基づいて、各種の有効な変更が可能である。
Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. Based on the Ao technical concept, various valid modifications are possible.

例えば、超音波加振子15は圧!素子以外の素子であっ
ても良い。
For example, the ultrasonic vibrator 15 has pressure! It may be an element other than the element.

また本発明は、VTRに限定されることなく。Furthermore, the present invention is not limited to VTRs.

テープレコーダ等の記録再生装置や各種の情報処理装f
K適用可能である。
Recording and reproducing devices such as tape recorders and various information processing devices
K is applicable.

〔発明の効果〕〔Effect of the invention〕

本発明は、上述のとおり構成されているので。 Since the present invention is configured as described above.

次に記載する効果な賽する。The following effective dice are listed below.

テープガイドを大きな振幅で効率良く振動させることが
できるので、テープの摩擦係数を非常に小さくできる。
Since the tape guide can be efficiently vibrated with a large amplitude, the coefficient of friction of the tape can be made extremely small.

小型化が可能であり、記録再生装置等への実用性が高い
上に、特に、可動式テープガイドに最適である。
It can be miniaturized, has high practicality in recording and reproducing devices, and is particularly suitable for movable tape guides.

超音波加振子よジ発生される熱がテープに伝わり難く、
テープの熱による損傷を防止できる。
The heat generated by the ultrasonic vibrator is difficult to transfer to the tape,
This prevents the tape from being damaged by heat.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図〜裁6図は本発明の一実施例を示したものであっ
て、第1図は超音波テープガイドの斜視図、第2図は加
振原理図、第3図はVTRへの適用例を示す平面図であ
る。 第4図は振幅依存性を説明するグラフである。 第5図〜第7図は従来例の平面図である。 なお1図面に用いられている符号において。 11・・・・・・・・超音波テープガイド12・・・・
・・・・テープガイド 13・・・・・・・・支持部材 14・・・・・・・・切欠き 15・・・・・・・・超音波加振子 16・・・・・・・・磁気テープ 22・・・・・・・・可動テープガイドである。 膚檀偽枚 ィL東イグ・」 イL者例 第6図
Fig. 1 to Fig. 6 show an embodiment of the present invention, in which Fig. 1 is a perspective view of an ultrasonic tape guide, Fig. 2 is a diagram of the vibration principle, and Fig. 3 is a diagram of an ultrasonic tape guide. FIG. 3 is a plan view showing an example of application. FIG. 4 is a graph explaining amplitude dependence. 5 to 7 are plan views of the conventional example. In addition, in the code used in one drawing. 11... Ultrasonic tape guide 12...
...Tape guide 13 ... Support member 14 ... Notch 15 ... Ultrasonic vibrator 16 ... Magnetic tape 22 is a movable tape guide. Figure 6 of the example of a person who is a fake girl.

Claims (1)

【特許請求の範囲】[Claims] テープガイドを支持する支持部材の一部に切欠きを設け
、この切欠き内に超音波加振子を取付けて、その超音波
加振子を上記テープガイドにほぼ向う方向に振動させる
ように構成した超音波テープガイド。
A notch is provided in a part of a support member that supports a tape guide, an ultrasonic vibrator is installed in the notch, and the ultrasonic vibrator is configured to vibrate in a direction substantially facing the tape guide. Sonic tape guide.
JP63185242A 1988-07-25 1988-07-25 Ultrasonic tape guide Pending JPH0235649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63185242A JPH0235649A (en) 1988-07-25 1988-07-25 Ultrasonic tape guide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63185242A JPH0235649A (en) 1988-07-25 1988-07-25 Ultrasonic tape guide

Publications (1)

Publication Number Publication Date
JPH0235649A true JPH0235649A (en) 1990-02-06

Family

ID=16167376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63185242A Pending JPH0235649A (en) 1988-07-25 1988-07-25 Ultrasonic tape guide

Country Status (1)

Country Link
JP (1) JPH0235649A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0508769A2 (en) * 1991-04-10 1992-10-14 Sony Corporation Tape guide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0508769A2 (en) * 1991-04-10 1992-10-14 Sony Corporation Tape guide
EP0508769A3 (en) * 1991-04-10 1994-08-10 Sony Corp Tape guide

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