JPS5832224A - Head cylinder unit of video tape recorder - Google Patents

Head cylinder unit of video tape recorder

Info

Publication number
JPS5832224A
JPS5832224A JP56129524A JP12952481A JPS5832224A JP S5832224 A JPS5832224 A JP S5832224A JP 56129524 A JP56129524 A JP 56129524A JP 12952481 A JP12952481 A JP 12952481A JP S5832224 A JPS5832224 A JP S5832224A
Authority
JP
Japan
Prior art keywords
cylinder
fixed
bearing
motor
transformer
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
JP56129524A
Other languages
Japanese (ja)
Inventor
Yoshiro Koga
欣郎 古賀
Koji Kakizawa
柿澤 幸次
Atsuki Ichinose
一之瀬 敦幾
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP56129524A priority Critical patent/JPS5832224A/en
Publication of JPS5832224A publication Critical patent/JPS5832224A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/52Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
    • G11B5/53Disposition or mounting of heads on rotating support

Landscapes

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

Abstract

PURPOSE:To obtain a titled cylinder unit which is reduced in unit capacity and eliminated electromagnetic noise to be generated, by using an ultrasonic motor to turn a video head and providing the motor at the inside of the upper and lower cylinders. CONSTITUTION:The signal given from a video magnetic head 4 is transmitted to an upper rotary transformer 13 via a lower rotary transformer 14 and then fed to an electric circuit for recording and reproduction. The ultrasonic vibration is transmitted to a vibrating bar 7 from an oscillator 9 via a horn 8, and the vibration of the bar 7 is converted into the rotary motion of an upper cylinder 3 with a contact to the cylinder 3. A rotary shaft 1 is connected to the cylinder 3 and the transformer 14 and fixed by a bearing 2 containing a bearing 12 and a pressure control mechanism. The bearing 2 and the oscillator 9 are fixed to a lower cylinder 5, and the bearing 12 and the transformer 13 are fixed to an upper cover 11. The cover 11 is fixed to a side post 10, and the post 10 is fixed to a fixing stage 6.

Description

【発明の詳細な説明】 本発明は、ビデオテープレコーダー(以下V TRと記
す)のメインデバイスであるヘッドシリンダーユニット
において、映倫ヘッドを回転する為のモーターに超音波
モーターを使用するVTRヘッドシリンダーユニットに
関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides a head cylinder unit which is a main device of a video tape recorder (hereinafter referred to as VTR), and which uses an ultrasonic motor as a motor for rotating an eirin head. It is related to.

従来のVTRヘッドシリンダーユニットでは、電磁力を
利用したモーターを使用しており、次のような欠点を持
っている。
Conventional VTR head cylinder units use motors that utilize electromagnetic force, and have the following drawbacks.

(1)モーターから磁束が漏洩しw3ノイズを発生する
為、モーターと映儂出気ヘッドを磁気的に遮蔽しなけれ
ばならない。
(1) Since magnetic flux leaks from the motor and generates W3 noise, the motor and the image output head must be magnetically shielded.

12)  電磁ノイズを逆打、しかも必襞なトルクをモ
ーターより得る為に、シリンダーユニット全体の占める
体積が大きくなる。
12) In order to counteract electromagnetic noise and obtain the necessary torque from the motor, the volume occupied by the entire cylinder unit increases.

+31 121の理由により、VTRシリンダユニット
の重量が増し、特にポータプルVTRでに携帯に不便で
ある。
+31 For the reason 121, the weight of the VTR cylinder unit increases, making it inconvenient to carry, especially in portable VTRs.

(4)  モータ効率が悪く、%にポータプルVTRで
は電池寿命が短い。
(4) Motor efficiency is poor and battery life is short in portable VTRs.

(5)  モーターに使用される永久磁石及び巻層が高
価である。
(5) The permanent magnets and winding layers used in the motor are expensive.

本発明はかかる欠点を除去したもので、その目的[VT
Rヘッドシリンダーユニットの小形軽量化にある。更に
他の目的は、ヘッド駆動用モーターの大出力化、高効率
化にある。更に他の目的は永久1石及び巻#を省略して
の低コスト化にある。
The present invention eliminates such drawbacks and aims [VT
The R head cylinder unit is smaller and lighter. Another objective is to increase the output and efficiency of the head drive motor. Another purpose is to reduce costs by omitting one permanent stone and a winding number.

更に他の目的は、モーターから電磁ノイズを発生しない
為、映倫磁気ヘッドに電磁ノイズが入ら々いことにある
Another purpose is to prevent electromagnetic noise from entering the Eirin magnetic head because the motor does not generate electromagnetic noise.

以下実施例に基づいて本発明の詳細な説明する。The present invention will be described in detail below based on Examples.

第1図は本発明の−14施例の断面図であり、1は回転
軸、2に軸受、3目上シリンダー、4に映像磁気ヘッド
、5は下シリンダ−,6汀固足台、7は振動片、8はホ
ーン、9に撮動子、10に側支柱、ll′VX上カバー
、12は軸受、15は上ロータリートランス、14げ下
口−タリートランスである。まず、映像6気ヘツドから
の信号の伝達に下口−タリートランスを経て上ロータリ
ートランスへ伝達され、記録再生用の電気回路に伝えら
れる。次に、超音波振@は振動子からホーンを介して蚕
動片に伝達され、蚕動片の揚動が上シリンダーとの接触
により上シリンダ、、−)、の回転運動に変換される。
FIG. 1 is a sectional view of the -14 embodiment of the present invention, in which 1 is a rotating shaft, 2 is a bearing, 3 is an upper cylinder, 4 is an image magnetic head, 5 is a lower cylinder, 6 is a footrest, and 7 1 is a vibrating element, 8 is a horn, 9 is a camera, 10 is a side support, 11'VX upper cover, 12 is a bearing, 15 is an upper rotary transformer, and 14 is a lower port-tally transformer. First, a signal from the video head is transmitted through a lower rotary transformer to an upper rotary transformer, and then to an electric circuit for recording and reproducing. Next, the ultrasonic vibration @ is transmitted from the vibrator to the silkworm piece via the horn, and the lifting motion of the silkworm piece is converted into rotational motion of the upper cylinder, , -) by contact with the upper cylinder.

さらに、回転軸は上シリンダーと下口−タリートランス
に連結しており、軸受12及び調圧機構を備えた軸受2
で固定され、軸受2及び撮動子は下シリンダーに固定さ
れている。軸受12及び上ロータリートランス13げ上
カッく−11に固定され、上カバーσ側支柱に、側支柱
に固定台に固定されている。
Furthermore, the rotating shaft is connected to the upper cylinder and the lower port-tally transformer, and has a bearing 12 and a bearing 2 equipped with a pressure regulating mechanism.
The bearing 2 and the camera element are fixed to the lower cylinder. The bearing 12 and the upper rotary transformer 13 are fixed to the upper cup 11, and are fixed to the upper cover σ side support and the side support to a fixing base.

以上の例からみられるように、VTRシリンダーユニッ
トヲ構成するモーターを上下シリンダーの内部に配攬す
ることによりユニットの占める容積に従来のものと比較
して約50%減少させることが可能であり、撮動子を電
歪型にすることにより電磁ノイズが発生せず構造が簡略
化さt′Ls品点Vも減少する。また、超音波モーター
の効率は約80チであり従来のモーターに比べ優2’し
た効率が得られ、しかも同じ寸法ならば出力に従来のモ
ーターの約5倍の出力まで可能である。以上の理由から
、t#に小形@量化及び長M池寿命を要求されるボータ
プルVTHに超音波モーターを使用することは有用であ
る。%にカメラデツキ一体型ポータプルVTRK使用す
ることσ南効である。
As can be seen from the above examples, by placing the motors that make up the VTR cylinder unit inside the upper and lower cylinders, it is possible to reduce the volume occupied by the unit by approximately 50% compared to conventional ones, making it possible to By making the mover electrostrictive, electromagnetic noise is not generated, the structure is simplified, and the t'Ls quality point V is also reduced. Further, the efficiency of the ultrasonic motor is about 80 inches, which is 2' higher than that of a conventional motor, and if the dimensions are the same, the output can be up to about 5 times that of a conventional motor. For the above reasons, it is useful to use an ultrasonic motor in a VTH that requires a small size and a long battery life in t#. % use a portable VTRK with integrated camera deck.

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

第1図は超音波モーターを使用したVTFヘッドシリン
ダーユニットの断面図である。 1は回転軸、2は軸受、3は上シリンダ−,4は峡偉占
気ヘッド、5は下シリンダ−,6は固定台、7は蚕動片
、8けホーン、9に一一子、1Dげ儒支柱、11げ上カ
バー、12に軸受、13は上ロータリートランス、14
に下口−タリートランスである。 以−上 出−人 株式会社諏肋精工舎 代理人 9P理士最上  ・務− 第1図−゛
FIG. 1 is a sectional view of a VTF head cylinder unit using an ultrasonic motor. 1 is the rotating shaft, 2 is the bearing, 3 is the upper cylinder, 4 is the Qingwei Shunting head, 5 is the lower cylinder, 6 is the fixed base, 7 is the peristaltic piece, 8 is the horn, 9 is Kazuko, 1D support column, 11 upper cover, 12 bearing, 13 upper rotary transformer, 14
There is a lower entrance-tally transformer. The above-mentioned persons: Representative of Subara Seikosha Co., Ltd. 9P Physician Mogami - Affairs - Figure 1 -゛

Claims (1)

【特許請求の範囲】[Claims] 上シリンダ−、テープガイドを備えた下シリンダ−、回
転する映[1気ヘツド、該磁気ヘッドを回転する為のモ
ーターからなるヘリカルスキャン方式ビデオテープレコ
ーダーヘッドシリンダーユニットにおいて、前記モータ
ーに超音波モーターを使用することを411mとするビ
デオテープレコーダーヘッドシリンダーユニット。
In a helical scan video tape recorder head cylinder unit consisting of an upper cylinder, a lower cylinder equipped with a tape guide, a rotating magnetic head, and a motor for rotating the magnetic head, the motor is equipped with an ultrasonic motor. A videotape recorder head cylinder unit designed to be used for 411m.
JP56129524A 1981-08-18 1981-08-18 Head cylinder unit of video tape recorder Pending JPS5832224A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56129524A JPS5832224A (en) 1981-08-18 1981-08-18 Head cylinder unit of video tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56129524A JPS5832224A (en) 1981-08-18 1981-08-18 Head cylinder unit of video tape recorder

Publications (1)

Publication Number Publication Date
JPS5832224A true JPS5832224A (en) 1983-02-25

Family

ID=15011631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56129524A Pending JPS5832224A (en) 1981-08-18 1981-08-18 Head cylinder unit of video tape recorder

Country Status (1)

Country Link
JP (1) JPS5832224A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6429251A (en) * 1987-07-27 1989-01-31 Toshiba Corp Magnetic resonance imaging apparatus
JPH0296612U (en) * 1989-01-19 1990-08-01
AU601535B2 (en) * 1986-12-30 1990-09-13 Sony Corporation A rotary head drum for a small-size vcr
US6261329B1 (en) 1998-02-26 2001-07-17 Sumitomo Electric Industries, Ltd. Diamond sintered body having high strength and high wear resistance, and tool including the same
WO2008096400A1 (en) 2007-02-02 2008-08-14 Sumitomo Electric Hardmetal Corp. Diamond sinter
US7553350B2 (en) 2005-07-26 2009-06-30 Sumitomo Electric Industries, Ltd. High-strength and highly-wear-resistant sintered diamond object and manufacturing method of the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU601535B2 (en) * 1986-12-30 1990-09-13 Sony Corporation A rotary head drum for a small-size vcr
JPS6429251A (en) * 1987-07-27 1989-01-31 Toshiba Corp Magnetic resonance imaging apparatus
JPH0296612U (en) * 1989-01-19 1990-08-01
US6261329B1 (en) 1998-02-26 2001-07-17 Sumitomo Electric Industries, Ltd. Diamond sintered body having high strength and high wear resistance, and tool including the same
US7553350B2 (en) 2005-07-26 2009-06-30 Sumitomo Electric Industries, Ltd. High-strength and highly-wear-resistant sintered diamond object and manufacturing method of the same
WO2008096400A1 (en) 2007-02-02 2008-08-14 Sumitomo Electric Hardmetal Corp. Diamond sinter

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