JPS633486A - Flexible printed circuit - Google Patents
Flexible printed circuitInfo
- Publication number
- JPS633486A JPS633486A JP61148553A JP14855386A JPS633486A JP S633486 A JPS633486 A JP S633486A JP 61148553 A JP61148553 A JP 61148553A JP 14855386 A JP14855386 A JP 14855386A JP S633486 A JPS633486 A JP S633486A
- Authority
- JP
- Japan
- Prior art keywords
- flexible printed
- printed circuit
- amorphous
- foil
- present
- 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
Links
- 239000011888 foil Substances 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 5
- 206010016256 fatigue Diseases 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 239000013039 cover film Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、フレキシブルプリント回路（ＦＰＣ）に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to flexible printed circuits (FPC).
従来のフレキシブルプリント回路の導体には銅箔が使用
されている。Copper foil is used as the conductor in conventional flexible printed circuits.
銅箔は、疲れ限度が低い為、苛酷な繰り返し曲げの働く
場合には疲れ破壊を起こし、回路が切断すると言う欠点
があった。Copper foil has a low fatigue limit, so if it is subjected to severe repeated bending, it will suffer from fatigue failure and the circuit will break.
本発８Ａのフレキシブルプリント回路は、回路導体部に
、疲れ限度の高いアモルファス箔を有している。The 8A flexible printed circuit of the present invention has an amorphous foil with a high fatigue limit in the circuit conductor portion.
次に本発明について図面を参照して説明する第１図は、
本発明の一実施例を表わす。第一の接着剤３を有するベ
ースフィルム２と第二の接着剤４を宵するカバーフィル
ム５に挟まれた回路導体部が疲れ限度の高いアモルファ
ス箔１である。Next, FIG. 1, which describes the present invention with reference to the drawings, shows
1 represents an embodiment of the present invention. The circuit conductor portion sandwiched between a base film 2 having a first adhesive 3 and a cover film 5 having a second adhesive 4 is an amorphous foil 1 having a high fatigue limit.
第２図はシリアルプリンタ内の接続に於いてアモルファ
スＦＰＣをケーブルとして使用した図である。キャリッ
ジ７がガイドシャフト８に案内されて、左右にスライド
する事により、キャリッジ７側の第一のコネクタ９とド
ライブ側の第二のコネクタを接続しているアモルファス
ＦＰＣケーブル６には繰り返し曲げ応力が働（。コネク
タ間距離、ａが小さい程、最小曲げ半径すが小さくなる
為アモルファス箔の応力は大きくなる。しかし、銅箔に
比ベアモルファス箔の疲れ限度は数段に高い為、コネク
タ間距離をかなり小さくする事が出来る。FIG. 2 is a diagram in which an amorphous FPC is used as a cable for connection within a serial printer. As the carriage 7 is guided by the guide shaft 8 and slides left and right, repeated bending stress is applied to the amorphous FPC cable 6 connecting the first connector 9 on the carriage 7 side and the second connector on the drive side. (The smaller the distance between the connectors, a, the smaller the minimum bending radius, so the stress on the amorphous foil becomes larger. However, the fatigue limit of bare amorphous foil is several orders of magnitude higher than that of copper foil, so the distance between the connectors is can be made considerably smaller.
以上説明した様にＦＰＣの回路導体に疲れ限度の高いア
モルファス箔を使用する事により。As explained above, by using amorphous foil with a high fatigue limit for the FPC circuit conductor.
次の様な効果がある。It has the following effects.
１、 装置の小型化が計れる。1. The device can be made smaller.
２ 非常に狭い空間での使用が可能になる。2. It can be used in very narrow spaces.
例えば、磁気ディスク装置や、コンパクトレーザーディ
スク（ＣＤ）装置のヘッド部の接続ケーブルとして使用
できる。For example, it can be used as a connection cable for the head of a magnetic disk device or a compact laser disk (CD) device.
３、 疲れ破壊に対する信頼性が向上する。3. Reliability against fatigue failure is improved.
第１図は、本発明の一実施例の立体断面図、第２図は、
シリアルプリンタのキャリッジ７の移動による本発明の
アモルファスＦＰＣケーブル６の形状変化を現わす図で
ある。
１・・・アモルファス箔、 ２・・・ベースフィル
ム。
３・・・接着剤Ａ、 ４・・・接着剤Ｂ。
５・・・カバーフィルム、 ６・・・アモルファスＦ
ＰＣケーブル。
７・・・キャリッジ、 ８・・・ガイドシャフト
。
９・・・コネクタＡ、 １０・・・コネクタＢ
。
ａ・・・コネクタ間距離、 ｂ・・・最小曲げ半径。
ど１
ｆ−、、−・
代理人 弁理士 内 原 晋゛−・。FIG. 1 is a three-dimensional sectional view of one embodiment of the present invention, and FIG. 2 is a
FIG. 3 is a diagram illustrating changes in shape of the amorphous FPC cable 6 of the present invention due to movement of the carriage 7 of the serial printer. 1...Amorphous foil, 2...Base film. 3... Adhesive A, 4... Adhesive B. 5...Cover film, 6...Amorphous F
PC cable. 7... Carriage, 8... Guide shaft. 9...Connector A, 10...Connector B
. a... Distance between connectors, b... Minimum bending radius. Do1 f-,,-・Representative Patent Attorney Susumu Uchihara.
Claims (1)
するフレキシブルプリント回路。A flexible printed circuit characterized by using amorphous foil for the circuit conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61148553A JPS633486A (en) | 1986-06-24 | 1986-06-24 | Flexible printed circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61148553A JPS633486A (en) | 1986-06-24 | 1986-06-24 | Flexible printed circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS633486A true JPS633486A (en) | 1988-01-08 |
Family
ID=15455332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61148553A Pending JPS633486A (en) | 1986-06-24 | 1986-06-24 | Flexible printed circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS633486A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02234307A (en) * | 1989-03-07 | 1990-09-17 | Sumitomo Electric Ind Ltd | Flexible printed circuit board |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55103787A (en) * | 1979-02-05 | 1980-08-08 | Hitachi Ltd | Method of manufacturing printed circuit board |
| JPS55110091A (en) * | 1979-02-19 | 1980-08-25 | Hitachi Ltd | Printed circuit board |
| JPS59180437A (en) * | 1983-03-31 | 1984-10-13 | Yamatake Honeywell Co Ltd | Electromagnetic flowmeter |
| JPS61237496A (en) * | 1985-04-13 | 1986-10-22 | 日立金属株式会社 | Flexible printed circuit board |
-
1986
- 1986-06-24 JP JP61148553A patent/JPS633486A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55103787A (en) * | 1979-02-05 | 1980-08-08 | Hitachi Ltd | Method of manufacturing printed circuit board |
| JPS55110091A (en) * | 1979-02-19 | 1980-08-25 | Hitachi Ltd | Printed circuit board |
| JPS59180437A (en) * | 1983-03-31 | 1984-10-13 | Yamatake Honeywell Co Ltd | Electromagnetic flowmeter |
| JPS61237496A (en) * | 1985-04-13 | 1986-10-22 | 日立金属株式会社 | Flexible printed circuit board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02234307A (en) * | 1989-03-07 | 1990-09-17 | Sumitomo Electric Ind Ltd | Flexible printed circuit board |
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