JPS61133074A - Tape recorder - Google Patents

Tape recorder

Info

Publication number
JPS61133074A
JPS61133074A JP59255355A JP25535584A JPS61133074A JP S61133074 A JPS61133074 A JP S61133074A JP 59255355 A JP59255355 A JP 59255355A JP 25535584 A JP25535584 A JP 25535584A JP S61133074 A JPS61133074 A JP S61133074A
Authority
JP
Japan
Prior art keywords
adjustment
adjusting
bridge circuit
foil
projection
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
Application number
JP59255355A
Other languages
Japanese (ja)
Other versions
JPH0572667B2 (en
Inventor
Kotaro Kashima
香島　光太郎
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59255355A priority Critical patent/JPS61133074A/en
Publication of JPS61133074A publication Critical patent/JPS61133074A/en
Publication of JPH0572667B2 publication Critical patent/JPH0572667B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0286—Programmable, customizable or modifiable circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/0393—Flexible materials
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components

Landscapes

  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE:To improve the reliability of adjusting work and to reduce man hour by installing an adjusting wiring foil connected serially to one side of a bridge circuit in terms of a projection equipped on the end side of a wiring printed circuit board so that the foil can be devided. CONSTITUTION:The flexible wiring printed circuit board 1 is provided with the projection on its end side and formed by extending a copper foil 2 for connecting the copper foil land 3 of an adjustment part so as to short it, to the projection part 4. By cutting the projection part 4 at the position of a cutting wire 5 or retaining it as it is at adjustment, the connection with respect to the fixed resistance R1 of an adjusting resistance R4 is selected or not. Thus soldering work can be abolished at the adjustment since the balancing of the bridge circuit used for controlling the speed of a motor is adjusted, and therefore the adjusting workability and its reliability can be improved.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、速度制御されるモータを備えたテープレコー
ダに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a tape recorder with a speed-controlled motor.

従来の技術 一般に、テープレコーダはテープメカニズムを駆動する
モータには電子ガバナ方式を採用しており、第２図に示
す様にブリッジ回路によりモ、−タ２に発生する逆起電
圧全検出して速度制御を行なっている。第２図において
、抵抗Ｒ、＋　Ｒ２１Ｒ５は固定抵抗であるが、量産時
、モータの巻線抵抗のばらつきを、吸収するために抵抗
Ｒ１と並列に抵抗Ｒ４を追加しブリッジ回路の平衡度を
調整する必要がある。前記の調整は調整箇所の銅箔を半
田にて短絡もしくは開放する事により実施していた。Conventional technology In general, tape recorders employ an electronic governor system for the motor that drives the tape mechanism, and as shown in Figure 2, a bridge circuit detects all of the back electromotive force generated in the motor 2. Performs speed control. In Figure 2, resistors R and R21R5 are fixed resistors, but during mass production, a resistor R4 is added in parallel with resistor R1 to absorb variations in motor winding resistance to adjust the balance of the bridge circuit. There is a need to. The above adjustment was carried out by short-circuiting or opening the copper foil at the adjustment point with solder.

第３図は第２図の調整箇所の基板上の見取図である。第
３図において、１はフレキシブルプリント配線基板、２
は銅箔、３は第２図の調整箇所に相当する調整用ランド
である。FIG. 3 is a sketch of the adjustment locations shown in FIG. 2 on the board. In Fig. 3, 1 is a flexible printed wiring board, 2
3 is a copper foil, and 3 is an adjustment land corresponding to the adjustment location in FIG.

発明が解決しようとする問題点 しかしながら、前記従来の構造によれば、調整時に半田
付は作業が伴ない、半田付けの信頼性の問題があり、ま
た半田付は作業が必要な為に調整箇所を設ける基板上の
位置も制約されていた。Problems to be Solved by the Invention However, according to the conventional structure, soldering involves work during adjustment, and there is a problem with soldering reliability. There were also restrictions on the location on the board where it could be provided.

本発明は上記問題点に鑑み、調整作業の工数を削減しよ
り廉価なチープレシダを提供することを目的とするもの
である。SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to reduce the number of man-hours for adjustment work and to provide a cheaper cedar.

問題点を解決するための手段 上記問題点を解決するために本発明のテープレコーダは
、プリント配線基板の端辺に分断可能なように設は念突
出部に調整用の配線箔を設けたものである。Means for Solving the Problems In order to solve the above-mentioned problems, the tape recorder of the present invention is provided with a wiring foil for adjustment on the protruding portion of the printed wiring board so that it can be separated at the edge thereof. It is.

作用 本発明のテープレコーダは、プリント配線基板の端辺の
突出部に調整用の配線箔を設けた事により、モータの速
度制御のためのブリッジ回路の調整を前記突出部を切断
もしくは残存させる事で実現でき、調整作業の信頼性を
向上し、工数を大巾に削減できるものである。Function: The tape recorder of the present invention has a wiring foil for adjustment on the protrusion on the edge of the printed wiring board, so that the bridge circuit for controlling the speed of the motor can be adjusted by cutting off or leaving the protrusion. This can be achieved by improving the reliability of adjustment work and greatly reducing the number of man-hours.

実施例 以下本発明の実施例のテープレコーダを図面を参照して
説明する。第１図は本発明の一実施例を示し、７レキシ
プルプリント配線基板１には、その端辺に突出部４を設
け、調整部分の銅箔ランド３を短絡する様に接続した銅
箔２を突出部４まで延長して形成し、調整時、突出部４
ｔ−切断線５の位置で切断もしくは非切断する事により
、調整抵抗Ｒ４の固定抵抗Ｒ１に対する接続、非接続を
選択する。したがって、調整部の銅箔を半田付けにより
短絡もしくは開放する作業が不要となり、工数が削減さ
れ、かつ信頼性も向上する。また調整箇所をフレキシブ
ルプリント配線基板１の外側に設ける事ができ、調整用
鋼箔ランドの配置上の制約もなくなる。Embodiments Hereinafter, tape recorders according to embodiments of the present invention will be explained with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which a 7-lexiple printed wiring board 1 is provided with a protrusion 4 on its edge, and a copper foil 2 connected to short-circuit the copper foil land 3 of the adjustment part. is formed by extending it to the protrusion 4, and when adjusting, the protrusion 4
By cutting or not cutting at the position of the t-cutting line 5, connection or disconnection of the adjusting resistor R4 to the fixed resistor R1 is selected. Therefore, there is no need to short-circuit or open the copper foil of the adjustment section by soldering, reducing the number of man-hours and improving reliability. Further, the adjustment location can be provided outside the flexible printed wiring board 1, and there are no restrictions on the arrangement of the steel foil land for adjustment.

発明の効果 以上のように本発明のテープレコーダはプリント配線基
板の端辺に突出部を設け、前記突出部に形成した調整用
の銅箔を突出部を切断、非切断する事により、モータの
速度制御のためのブリッジ回路の平衡度の調整全行なう
ものであり、調整時の半田付は作業を廃止し、調整作業
性、信頼性を向上させることができるものである。また
プリント基板の上面にテープメカニズムの駆動部を取付
ける場合でも、調整箇所が基板端辺から突出しているた
め、調整は前記テープメカニズムの駆動部を実装後でも
可能となるため、作業性を向上できる。また自動機によ
る調整も可能となる等、優れた効果を発揮するものであ
る。Effects of the Invention As described above, the tape recorder of the present invention has a protrusion on the edge of the printed wiring board, and the adjustment copper foil formed on the protrusion is cut or uncut at the protrusion, thereby controlling the motor. This system performs all adjustments to the balance of the bridge circuit for speed control, and eliminates the need for soldering during adjustment, thereby improving adjustment workability and reliability. Furthermore, even when installing the drive section of the tape mechanism on the top surface of a printed circuit board, since the adjustment point protrudes from the edge of the board, adjustment can be made even after the drive section of the tape mechanism is mounted, improving work efficiency. . Furthermore, it is possible to perform adjustment using an automatic machine, which provides excellent effects.

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

第１図は本発明の一実施例におけるテープレコーダのプ
リント基板の調整箇所を示す斜視図、第２図は従来のテ
ープレコーダの調整箇所を示す回路図、第３図は従来の
プリント基板の調整箇所を示す斜視図である。 １・・・・・・フレキシブルプリント基板、２・・・・
・・銅箔、３・・・・・・調整用ランド、Ｒ１・・・・
・・固定抵抗、Ｒ４・・・・・・調整用抵抗、４・・・
・・・突出部。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第２
ＩＩＡFIG. 1 is a perspective view showing adjustment points on a printed circuit board of a tape recorder according to an embodiment of the present invention, FIG. 2 is a circuit diagram showing adjustment points in a conventional tape recorder, and FIG. 3 is a conventional adjustment of a printed circuit board. It is a perspective view showing a location. 1...Flexible printed circuit board, 2...
...Copper foil, 3...Adjustment land, R1...
・・Fixed resistance, R4 ・・Adjustment resistor, 4...
...protrusion. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
IIA

Claims (1)

【特許請求の範囲】[Claims] モータの速度制御のための電子ガバナを構成するブリッ
ジ回路を設けたプリント配線基板を備え、上記プリント
配線基板の端辺に分断可能なように設けた突出部に上記
ブリッジ回路の一辺に並列に接続された調整用の配線箔
を設けたことを特徴とするテープレコーダ。A printed wiring board is provided with a bridge circuit constituting an electronic governor for controlling the speed of the motor, and the bridge circuit is connected in parallel to one side of the bridge circuit to a protrusion provided on an edge of the printed wiring board so as to be separable. A tape recorder characterized in that a wiring foil is provided for adjustment.
JP59255355A 1984-12-03 1984-12-03 Tape recorder Granted JPS61133074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59255355A JPS61133074A (en) 1984-12-03 1984-12-03 Tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59255355A JPS61133074A (en) 1984-12-03 1984-12-03 Tape recorder

Publications (2)

Publication Number Publication Date
JPS61133074A true JPS61133074A (en) 1986-06-20
JPH0572667B2 JPH0572667B2 (en) 1993-10-12

Family

ID=17277630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59255355A Granted JPS61133074A (en) 1984-12-03 1984-12-03 Tape recorder

Country Status (1)

Country Link
JP (1) JPS61133074A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190165641A1 (en) * 2017-11-30 2019-05-30 Nidec Corporation Circuit board, motor, and fan motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190165641A1 (en) * 2017-11-30 2019-05-30 Nidec Corporation Circuit board, motor, and fan motor

Also Published As

Publication number Publication date
JPH0572667B2 (en) 1993-10-12

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term