JPH0572667B2 - - Google Patents
Info
- Publication number
- JPH0572667B2 JPH0572667B2 JP59255355A JP25535584A JPH0572667B2 JP H0572667 B2 JPH0572667 B2 JP H0572667B2 JP 59255355 A JP59255355 A JP 59255355A JP 25535584 A JP25535584 A JP 25535584A JP H0572667 B2 JPH0572667 B2 JP H0572667B2
- Authority
- JP
- Japan
- Prior art keywords
- adjustment
- tape recorder
- printed wiring
- wiring board
- protrusion
- 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
- 239000011888 foil Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 239000011889 copper foil Substances 0.000 description 9
- 238000005476 soldering Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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)
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図に示す様にブリツジ回路によりモータ
２に発生する逆起電圧を検出して速度制御を行な
つている。第２図において、抵抗R1，R2，R3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を追加しブリツ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 the back electromotive force generated in the motor 2 to control the speed. is being carried out. In Figure 2, resistors R 1 , R 2 , and R 3 are fixed resistors, but during mass production, a resistor is installed in parallel with resistor R 1 to absorb variations in motor winding resistance.
It is necessary to add R 4 and adjust the balance of the bridge circuit. 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 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
時に半田付け作業が伴ない、半田付けの信頼性の
問題があり、また半田付け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 above-mentioned conventional structure, soldering work is involved during adjustment, and there is a problem with the reliability of soldering.Also, since soldering work is required, adjustment points are provided. The location on the board was also restricted.
本発明は上記問題点に鑑み、調整作業の工数を
削減しより廉価なテープレコーダを提供すること
を目的とするものである。 SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide a tape recorder that reduces the number of adjustment steps and is less expensive.
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
ように設けた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 has a wiring foil for adjustment provided on a protrusion that is provided on the edge of the printed wiring board so that it can be separated. be.
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ツジ回路の調
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。Effect: The tape recorder of the present invention is provided with a wiring foil for adjustment on the protrusion on the edge of the printed wiring board, so that the protrusion can be cut or left in order to adjust the bridge circuit for controlling the speed of the motor. This can be realized by doing things like this, 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、フレキシブ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を切断線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。したがつて、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、調整用銅箔ランドの配置上の制約
もなくなる。Embodiment A tape recorder according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which a flexible printed wiring board 1 is provided with a protrusion 4 on its edge, and a copper foil 2 connected to the copper foil land 3 of the adjustment portion is protruded so as to short-circuit the copper foil land 3. The adjustment resistor R 4 is formed to extend to the fixed resistor R 1 , and during adjustment, by cutting or not cutting the protrusion 4 at the position of the cutting line 5 , connection or disconnection of the adjustment resistor R 4 to the fixed resistor R 1 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 copper 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ツジ
回路の平衡度の調整を行なうものであり、調整時
の半田付け作業を廃止し、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, in the tape recorder of the present invention, a protrusion is provided on the edge of a printed wiring board, and the adjustment copper foil formed on the protrusion is cut or not cut at the protrusion, thereby controlling the motor. This adjusts the balance of the bridge circuit for speed control, eliminates soldering work during adjustment, and improves 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.
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。
FIG. 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, R 1 ...Fixed resistor, R 4
...Adjustment resistor, 4...Protrusion.
Claims (1)
するブリツ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ツジ回路の一辺の固
定抵抗に対し並列に接続された調整用抵抗の配線
箔を設けたことを特徴とするテープレコーダ。1. A printed wiring board provided with a bridge circuit constituting an electronic governor for speed control of the motor, and a fixed resistor on one side of the bridge circuit on a protruding part provided so as to be separable on the edge of the printed wiring board. A tape recorder characterized in that a wiring foil of an adjustment resistor is connected in parallel to the tape recorder.
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 JPS61133074A (en) | 1986-06-20 |
| JPH0572667B2 true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019103205A (en) * | 2017-11-30 | 2019-06-24 | 日本電産株式会社 | Circuit board, motor, and fan motor |
-
1984
- 1984-12-03 JP JP59255355A patent/JPS61133074A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61133074A (en) | 1986-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |