JP2004063356A - Signal transmission means using flexible board - Google Patents

Signal transmission means using flexible board Download PDF

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Publication number
JP2004063356A
JP2004063356A JP2002222231A JP2002222231A JP2004063356A JP 2004063356 A JP2004063356 A JP 2004063356A JP 2002222231 A JP2002222231 A JP 2002222231A JP 2002222231 A JP2002222231 A JP 2002222231A JP 2004063356 A JP2004063356 A JP 2004063356A
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Japan
Prior art keywords
flexible
substrate
substrates
signal
transmission means
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JP2002222231A
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Japanese (ja)
Inventor
Hirofumi Matsushima
松島 浩文
Takahiro Okuie
奥家 孝博
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Priority to JP2002222231A priority Critical patent/JP2004063356A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To narrow the width of a flexible board in a transmission means using the flexible board. <P>SOLUTION: Two flexible boards 7, 8 are so arranged that warped regions 71, 72 of the respective boards 7, 8 are lapped in the same direction with a gap. A plurality of projecting pieces 74 the width of which does not interfere with the warping of the warped region 71 are projected from a side edge of the warped region 71 of the one board 7 of the adjacent flexible boards 7, 8 integrally with the board 7, the projecting pieces 74 being folded to the opposite side edge, and the tips thereof being joined three-dimensionally to the board 7 to form spacers 75. Thus, since a flexible board which would otherwise have a larger width accompanying the increased number of signal wires is divided into the plurality of flexible boards 7, 8, the width of the flexible boards 7, 8 can be narrowed, thereby contributing to the compactness of a device. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する分野】
本発明は、2つの部材を電気的に接続するためのフレキシブル基板を用いた信号伝達手段及び該伝達手段を用いた光ピックアップ装置に関するものである。
【0002】
【従来の技術及び発明が解決しようとする課題】
図6、図7に示す如く、ディスク記録再生装置に搭載される光ピックアップ装置(1)は、スライド部材(2)上に配備されたピックアップアセンブリー(3)と、該スライド部材(3)の移行路に接近して定位置に配備した回路基板(5)とをフレキシブル基板(9)によって電気的に接続している。
光ピックアップ装置(1)は、レーザー発光制御、信号の記録再生のための対物レンズ(31)の位置制御、信号の検出等、多くの信号をスライド部材(2)と回路基板(5)との間で交信する必要がある。このためフレキシブル基板(9)の信号線の数が多くなり、該基板(9)の幅が広くなる。
【0003】
フレキシブル基板(9)上の信号線には、センサー系のノイズに弱い微小信号系と、レーザ発光信号系、対物レンズ制御信号系等のノイズを含み易い信号系がある。そのために、ノイズに弱い信号系とノイズを含み易い信号系とがフレキシブル基板(9)上で接近しない様に基板の幅方向に分けて配置されており、フレキシブル基板(9)が幅広となる要因の1つとなっている。
更に、近年の傾向として、CD(コンパクトディスク)とDVD(デジタルバーサタイルディスク)の複合機器が多くなり、上記フレキシブル基板(9)の信号線の数は更に増え、必然的に基板の幅も大きくなる。
【0004】
フレキシブル基板(9)は、プリント配線を施したシートを打ち抜いて形成するのであるが、フレキシブル基板が広幅になると該基板の取数が少なくなり、コスト高となる。又、フレキシブル基板(9)の端部を接続するための回路基板(5)上の接続領域には回路部品を搭載出来ないから、フレキシブル基板(9)の幅が大きくなることは、回路基板(5)上の回路部品搭載不可領域が大きくなり、結果的に回路基板(5)が大型化する。
【0005】
他方、CDプレーヤ等、製品としては小型化が追求され、フレキシブル基板(9)の幅広化や回路基板(5)の大型化は、製品小型化の妨げとなる。
本発明は、信号線の数を増やしてもフレキシブル基板の幅広化、回路基板の大型化を阻止できる、フレキシブル基板を用いた信号伝達手段及び該信号伝達手段を用いたピックアップ装置を明らかにするものである。
【0006】
【課題を解決する手段】
本発明は、信号を送信又は受信する一方の部材に一端を接続し、信号を送信又は受信する他方の部材に他端を接続するフレキシブルな信号伝達手段であって、複数のフレキシブル基板(7)(8)を各基板(7)(8)の湾曲使用領域(71)(81)の向きを揃え且つ複数のスペーサ(75)を介して隙間を存して重なる様に配置し、隣り合うフレキシブル基板(7)(8)の内、一方の基板(7)の湾曲使用領域(71)の側縁から湾曲使用領域(71)の湾曲を妨げない幅の複数本の突片(74)を基板(7)と一体に突設し、該突片(74)を反対側の側縁へ立体的に折り返して折返し先端を基板(7)に接合して前記スペーサ(75)を形成している。
【0007】
一方の基板(7)の湾曲使用領域(71)の両側縁から該基板と一体に突片(76)(76)を延長し、該突片を基板(7)上に立体的に折り返して折返し先端を基板(7)に接合して該基板(7)上に2列にスペーサ(75)を形成しても可い。
【0008】
本発明の光ピックアップ装置は、上記信号伝達手段(6)の各フレキシブル基板(7)(8)の湾曲使用領域(71)(81)側の一端を、光ピックアップ装置(1)のピックアップアセンブリー(3)を含むスライド部材(2)上に連繋し、他端を該スライド部材(2)のスライド移行路に接近して定位置に配備した回路基板(5)に連繋している。
【0009】
【作用及び効果】
信号線が増えて本来幅広となるフレキシブル基板を、複数のフレキシブル基板(7)(8)に分けて形成するため、フレキシブル基板(7)(8)の幅を小さくできる。フレキシブル基板(7)(8)の回路基板(5)への接続端部には、該回路基板(5)上のコネクター(図示せず)への挿入部(70)(80)が設けられ、他端は拡大して電子部品の搭載領域(73)(83)となっていることが多い。プリント配線を施したしたシートを打ち抜いてフレキシブル基板(7)(8)を形成する際、基板(7)(8)の拡大した電子部品の搭載領域(73)(83)をずらし、湾曲使用領域(71)(81)を可及的に接近させてシートを打ち抜くことにより、基板(7)(8)の取数を多くでき、コスト低減に寄与できる。
【0010】
スペーサ(75)によって隣合うフレキシブル基板(7)(8)間の適正隙間を確保でき、センサー出力等の微小信号線へ、レーザ制御、対物レンズ制御信号のノイズが飛び込むことを防止できる。
スペーサ(75)を形成するための突片(74)は、フレキシブル基板(7)の側縁から該基板と一体に突設されているため、即ち、フレキシブル基板(7)に対する突片(74)の位置が決まっているため、突片(74)の折り返し及び突片(74)先端のフレキシブル基板(7)への接合の自動化を容易に実施できる。
又、一端がフレキシブル基板(7)に連続している突片(74)で形成したスペーサ(75)は、位置決め精度が高く、又、位置ずれも生じない。
【0011】
フレキシブル基板(7)(8)の幅を小さくすることは、相手回路基板(5)のフレキシブル基板(7)(8)の接続領域を小さく出来、即ち、回路基板(5)の回路部品搭載不可領域を小さくできるから、結果的に回路基板(5)を小さくすることができ、CDプレーヤ等の製品の小型化に寄与できる。
【0012】
【発明の実施の形態】
図1は本発明を実施した光ピックアップ装置(1)を示している。
光ピックアップ装置(1)は、ガイド軸(21)(21)にスライド可能に支持されたスライド部材(2)と、該スライド部材(2)に接近して定位置に配備した回路基板(5)とを略U字状に湾曲させた信号伝達手段(6)にて電気的に接続して構成される。
スライド部材(2)は、対物レンズ(31)を含むピックアップアセンブリー(3)を含んでいる。
【0013】
信号伝達手段(6)は、2枚のフレキシブル基板(7)(8)をスペーサ(75)を介して隙間を存して重ねて形成される。
両フレキシブル基板(7)(8)は夫々帯状の湾曲使用領域(71)(81)を有し、スライド部材(2)側の端部を大きく拡大して電子部品の搭載領域(73)(83)を形成し、他端(72)(82)は幅広に拡大して回路基板(5)上のコネクター(図示せず)に接続するための挿入部(70)(80)を具えている。
両フレキシブル基板(7)(8)の湾曲使用領域(71)(81)の幅は、実施例では約10mmであって、夫々20本程度の信号線が通っている。
【0014】
上記2枚のフレキシブル基板(7)(8)の帯状湾曲使用領域(71)(81)の向きは揃っており、両湾曲使用領域(71)(81)はスペーサ(75)によって一定の間隔が保たれ、接触することが防止される。
【0015】
スペーサ(75)は、一方のフレキシブル基板(7)の湾曲使用領域(71)の一側縁から複数の細帯状の突片(74)を湾曲使用領域(71)の長手方向と直交する方向にフレキシブル基板(7)と一体に突設し、該突片(74)を反対側の側縁へ円弧状に立体的に折り返して折返し先端を基板(7)に接合して形成される。
突片(74)の幅は1mm程度であり、湾曲使用領域(71)の湾曲の妨げとはならない。
突片(74)の長さは、フレキシブル基板(7)の幅より3〜5mm程度長く、スペーサ(75)の湾曲最大高さは1.5mm程度となる。
隣合うスペーサ(75)(75)の間隔は、信号伝達手段(6)を湾曲使用領域(71)(81)のどの部位からU字状に湾曲させても、湾曲使用領域(71)(81)どうしが接触しないことを保障できる間隔とする。
【0016】
図4に示す如く、実施例では、フレキシブル基板(7)の、突片(74)に最も近い線はアース線(77)となっており、該アース線(77)は突片(74)の先端部近傍まで迂回して侵入している。
【0017】
然して、フレキシブル基板(7)のスペーサ(75)に当てて他方のフレキシブル基板(8)を重ね、両フレキシブル基板(7)(8)の電子部品搭載領域(73)(83)をスライド部材(2)に接着等にて取り付け、他端の挿入部(70)(80)を回路基板(5)上のコネクター(図示せず)に接続する。
【0018】
信号線が増えて本来広幅となるフレキシブル基板を、複数のフレキシブル基板(7)(8)に分けて形成するため、フレキシブル基板(7)(8)の幅を小さくできる。このため、プリント配線したシートを打ち抜いてフレキシブル基板(7)(8)を形成する際、取数を多くでき、コスト低減に寄与できる。突片(74)の長さは、シートからのフレキシブル基板(7)の取数に不利と思われるか、回路部品搭載領域(73)が湾曲使用領域(71)の幅よりも大きく拡大しているから、突片(74)の存在が取数にマイナス要因となることはない。
【0019】
フレキシブル基板(7)(8)の幅を小さくすることは、相手回路基板(5)のフレキシブル基板(7)(8)の接続領域を小さく出来、即ち、回路基板(5)の回路部品搭載不可領域を小さくできるから、結果的に回路基板(5)を小さくすることができ、CDプレーヤ等の製品の小型化に寄与できる。
【0020】
実施例の様に、フレキシブル基板(7)に、突片(74)へ侵入してアース線(77)を設けることにより、突片(74)を立体的に折り返してスペーサ(75)を形成した場合、アース線(77)がスペーサ(75)の補強の役割をなす。又、アース線(77)が信号線列を横断するため、シールド効果を得られる。
【0021】
図5は、スペーサ(75)の他の実施例を示しており、基板(7)の湾曲使用領域(71)の両側縁から湾曲使用領域(71)の湾曲を妨げない幅の複数の突片(76)(76)を基板と一体に突設し、該突片(76)(76)を基板(7)上に三角形状に立体的に折り返して折返し先端を基板(7)に接合して基板上に2列にスペーサ(75)を形成している。
【0022】
上記実施例の説明は、本発明を説明するためのものであって、特許請求の範囲に記載の発明を限定し、或は範囲を減縮する様に解すべきではない。又、本発明の各部構成は上記実施例に限らず、特許請求の範囲に記載の技術的範囲内で種々の変形が可能であることは勿論である。
【0023】
例えば、本発明の信号伝達手段(6)は、プリンターのスライドヘッドと、定位置の回路基板の接続等にも実施できる。
又、実施例ではフレキシブル基板(7)(8)を2段に重ねたが、フレキシブル基板を3段以上の複数段に重ねることも可能である。
【図面の簡単な説明】
【図1】光ピックアップの斜面図である。
【図2】信号伝達手段の分解斜面図である。
【図3】図1A−A線に沿う断面図である。
【図4】フレキシブル基板の配線バターンの説明図である。
【図5】他の実施例のスペーサを具えたフレキシブル基板の斜面図である。
【図6】従来例の単体フレキシブル基板を用いた光ピックアップ装置の斜面図である。
【図7】同上の側面図である。
【符号の説明】
(1)  光ピックアップ装置
(2)  スライド部材
(3)  ピックアップアセンブリー
(5)  回路基板
(6)  信号伝達手段
(7)  フレキシブル基板
(71) 湾曲使用領域
(8)  フレキシブル基板
(81) 湾曲使用領域
[0001]
[Field of the Invention]
The present invention relates to a signal transmission unit using a flexible substrate for electrically connecting two members, and an optical pickup device using the transmission unit.
[0002]
Problems to be solved by the prior art and the invention
As shown in FIGS. 6 and 7, an optical pickup device (1) mounted on a disc recording / reproducing device includes a pickup assembly (3) provided on a slide member (2) and a slide assembly (3). A circuit board (5) arranged at a fixed position near the transition path is electrically connected by a flexible board (9).
The optical pickup device (1) transmits many signals between the slide member (2) and the circuit board (5), such as laser emission control, position control of an objective lens (31) for recording and reproducing signals, and signal detection. Need to communicate between them. Therefore, the number of signal lines on the flexible substrate (9) increases, and the width of the substrate (9) increases.
[0003]
The signal lines on the flexible substrate (9) include a small signal system that is susceptible to sensor system noise, and a signal system that easily contains noise such as a laser emission signal system and an objective lens control signal system. Therefore, a signal system weak to noise and a signal system easily containing noise are arranged separately in the width direction of the substrate so that they do not approach on the flexible substrate (9), and the factor that the flexible substrate (9) becomes wider is provided. It has become one of.
Furthermore, as a recent trend, the number of composite devices of CDs (compact disks) and DVDs (digital versatile disks) has increased, and the number of signal lines on the flexible substrate (9) has further increased, and the width of the substrate has necessarily increased. .
[0004]
The flexible substrate (9) is formed by punching out a sheet on which printed wiring is applied. However, if the flexible substrate is wide, the number of substrates is reduced and the cost is increased. Also, since circuit components cannot be mounted in the connection area on the circuit board (5) for connecting the ends of the flexible board (9), the increase in the width of the flexible board (9) is caused by the increase in the width of the circuit board (5). 5) The area where the circuit components cannot be mounted becomes large, and as a result, the circuit board (5) becomes large.
[0005]
On the other hand, miniaturization of products such as CD players is pursued, and the increase in the width of the flexible substrate (9) and the increase in the size of the circuit board (5) hinder miniaturization of the product.
The present invention clarifies a signal transmission device using a flexible substrate and a pickup device using the signal transmission device, which can prevent an increase in the width of a flexible substrate and an increase in the size of a circuit substrate even when the number of signal lines is increased. It is.
[0006]
[Means to solve the problem]
The present invention relates to a flexible signal transmitting means for connecting one end to one member for transmitting or receiving a signal and connecting the other end to the other member for transmitting or receiving a signal, wherein the plurality of flexible substrates (7) are provided. (8) is arranged so that the directions of the curved use areas (71) and (81) of the substrates (7) and (8) are aligned and overlap with a gap through a plurality of spacers (75), and the adjacent flexible boards are arranged. Among the substrates (7) and (8), a plurality of protruding pieces (74) having a width that does not hinder the bending of the curved use area (71) from the side edge of the curved use area (71) of one of the substrates (7) is used. The spacer (75) is formed by projecting integrally with (7), three-dimensionally folding the projecting piece (74) to the opposite side edge, and joining the folded tip to the substrate (7).
[0007]
The protruding pieces (76) and (76) are extended integrally with the substrate from both side edges of the curved use area (71) of one of the substrates (7), and the protruding pieces are three-dimensionally folded back on the substrate (7). The tip may be joined to the substrate (7) to form two rows of spacers (75) on the substrate (7).
[0008]
In the optical pickup device of the present invention, one end of each of the flexible substrates (7) and (8) of the signal transmission means (6) on the side of the curved use area (71) (81) is connected to the pickup assembly of the optical pickup device (1). The other end is connected to the slide member (2) including the slide member (3), and the other end is connected to the circuit board (5) arranged at a fixed position close to the slide transition path of the slide member (2).
[0009]
[Action and effect]
Since the flexible substrate, which is originally wide due to the increase in the number of signal lines, is divided into a plurality of flexible substrates (7) and (8), the width of the flexible substrates (7) and (8) can be reduced. At the connection end of the flexible boards (7) and (8) to the circuit board (5), insertion portions (70) and (80) for connectors (not shown) on the circuit board (5) are provided. The other end is often enlarged to be the mounting area (73) (83) for electronic components. When forming the flexible printed circuit boards (7) and (8) by punching out the sheet on which the printed wiring has been applied, the enlarged mounting areas (73) and (83) of the electronic components of the printed circuit boards (7) and (8) are shifted, and the bending use area is shifted. (71) By punching out the sheet with (81) as close as possible, the number of substrates (7) and (8) can be increased, which can contribute to cost reduction.
[0010]
By the spacer (75), an appropriate gap between the adjacent flexible substrates (7) and (8) can be ensured, and noise of the laser control and objective lens control signals can be prevented from jumping into a minute signal line such as a sensor output.
The projecting piece (74) for forming the spacer (75) is provided integrally with the side edge of the flexible board (7), that is, the projecting piece (74) for the flexible board (7). Since the positions of the projections (74) are determined, it is possible to easily implement automatic turning of the projections (74) and joining of the tips of the projections (74) to the flexible substrate (7).
Further, the spacer (75) formed by a protruding piece (74) having one end continuous with the flexible substrate (7) has high positioning accuracy and does not cause displacement.
[0011]
Reducing the width of the flexible boards (7) and (8) can reduce the connection area of the flexible boards (7) and (8) of the mating circuit board (5), that is, the circuit components of the circuit board (5) cannot be mounted. Since the area can be reduced, the circuit board (5) can be reduced as a result, which can contribute to miniaturization of products such as CD players.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows an optical pickup device (1) embodying the present invention.
The optical pickup device (1) comprises a slide member (2) slidably supported by guide shafts (21) and (21), and a circuit board (5) disposed in a fixed position close to the slide member (2). Are electrically connected by a signal transmission means (6) curved substantially in a U-shape.
The slide member (2) includes a pickup assembly (3) including an objective lens (31).
[0013]
The signal transmission means (6) is formed by stacking two flexible substrates (7) and (8) with a gap therebetween via a spacer (75).
Each of the flexible substrates (7) and (8) has a band-shaped curved use area (71) (81), and the end on the side of the slide member (2) is greatly enlarged to mount the electronic component mounting areas (73) (83). ), And the other ends (72) and (82) are provided with insertion portions (70) and (80) for widening and connecting to connectors (not shown) on the circuit board (5).
The widths of the curved use areas (71) and (81) of both flexible substrates (7) and (8) are about 10 mm in the embodiment, and about 20 signal lines pass through each.
[0014]
The directions of the band-shaped curved use areas (71) and (81) of the two flexible substrates (7) and (8) are aligned, and the both curved use areas (71) and (81) are spaced apart by a spacer (75). Retained and prevented from touching.
[0015]
The spacer (75) extends a plurality of strip-shaped projections (74) from one side edge of the curved use area (71) of the one flexible substrate (7) in a direction orthogonal to the longitudinal direction of the curved use area (71). The protruding piece (74) is formed integrally with the flexible substrate (7), and the projection (74) is three-dimensionally folded in an arc shape to the opposite side edge, and the folded tip is joined to the substrate (7).
The width of the protruding piece (74) is about 1 mm, and does not hinder the bending of the bending use area (71).
The length of the protruding piece (74) is about 3 to 5 mm longer than the width of the flexible board (7), and the maximum bending height of the spacer (75) is about 1.5 mm.
The distance between the adjacent spacers (75) and (75) is such that the signal transmission means (6) can be bent in a U-shape from any part of the curved use areas (71) and (81) regardless of the curved use areas (71) and (81). ) An interval that can guarantee that they do not touch each other.
[0016]
As shown in FIG. 4, in the embodiment, the line closest to the protruding piece (74) of the flexible board (7) is an earth wire (77), and the ground wire (77) is connected to the protruding piece (74). Detouring into the vicinity of the tip.
[0017]
However, the other flexible substrate (8) is overlapped with the spacer (75) of the flexible substrate (7), and the electronic component mounting areas (73) and (83) of the two flexible substrates (7) and (8) are moved to the slide member (2). ), And the other end of the insertion portion (70) (80) is connected to a connector (not shown) on the circuit board (5).
[0018]
Since the flexible substrate, which is originally wide due to the increase in the number of signal lines, is divided into a plurality of flexible substrates (7) and (8), the width of the flexible substrates (7) and (8) can be reduced. For this reason, when forming the flexible substrates (7) and (8) by punching out the printed wiring sheet, the number of pieces can be increased, which can contribute to cost reduction. The length of the protruding piece (74) seems to be disadvantageous to the number of flexible substrates (7) to be taken from the sheet, or the circuit component mounting area (73) is larger than the width of the curved use area (71). Therefore, the presence of the protruding piece (74) does not negatively affect the number of pieces.
[0019]
Reducing the width of the flexible boards (7) and (8) can reduce the connection area of the flexible boards (7) and (8) of the mating circuit board (5), that is, the circuit components of the circuit board (5) cannot be mounted. Since the area can be reduced, the circuit board (5) can be reduced as a result, which can contribute to miniaturization of products such as CD players.
[0020]
As in the embodiment, the spacer (75) is formed by three-dimensionally folding the protruding piece (74) by providing the ground wire (77) by penetrating the protruding piece (74) on the flexible substrate (7). In this case, the ground wire (77) plays the role of reinforcing the spacer (75). Further, since the ground wire (77) crosses the signal line row, a shielding effect can be obtained.
[0021]
FIG. 5 shows another embodiment of the spacer (75), in which a plurality of protruding pieces having a width from both side edges of the curved use area (71) of the substrate (7) that do not hinder the curvature of the curved use area (71). (76) (76) is integrally provided with the substrate, and the protruding pieces (76) and (76) are three-dimensionally folded in a triangular shape on the substrate (7), and the folded ends are joined to the substrate (7). The spacers (75) are formed in two rows on the substrate.
[0022]
The description of the above embodiments is intended to explain the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made within the technical scope described in the claims.
[0023]
For example, the signal transmission means (6) of the present invention can be implemented for connecting a slide head of a printer to a circuit board at a fixed position.
In the embodiment, the flexible substrates (7) and (8) are stacked in two stages, but the flexible substrates can be stacked in three or more stages.
[Brief description of the drawings]
FIG. 1 is a perspective view of an optical pickup.
FIG. 2 is an exploded perspective view of a signal transmission unit.
FIG. 3 is a sectional view taken along the line AA of FIG. 1;
FIG. 4 is an explanatory diagram of a wiring pattern of a flexible substrate.
FIG. 5 is a perspective view of a flexible substrate provided with a spacer according to another embodiment.
FIG. 6 is a perspective view of a conventional optical pickup device using a single flexible substrate.
FIG. 7 is a side view of the same.
[Explanation of symbols]
(1) Optical pickup device (2) Slide member (3) Pickup assembly (5) Circuit board (6) Signal transmission means (7) Flexible board (71) Curved use area (8) Flexible board (81) Curved use area

Claims (4)

信号を送信又は受信する一方の部材に一端を接続し、信号を送信又は受信する他方の部材に他端を接続するフレキシブルな信号伝達手段であって、複数のフレキシブル基板(7)(8)を各基板(7)(8)の湾曲使用領域(71)(81)の向きを揃え且つ複数のスペーサ(75)を介して隙間を存して重なる様に配置し、隣り合うフレキシブル基板(7)(8)の内、一方の基板(7)の湾曲使用領域(71)の側縁から湾曲使用領域(71)の湾曲を妨げない幅の複数本の突片(74)を基板(7)と一体に突設し、該突片(74)を反対側の側縁へ立体的に折り返して折返し先端を基板(7)に接合して前記スペーサ(75)を形成している信号伝達手段。Flexible signal transmission means for connecting one end to one member for transmitting or receiving a signal and connecting the other end to the other member for transmitting or receiving a signal, comprising a plurality of flexible substrates (7) and (8). The directions of the curved use areas (71) and (81) of the substrates (7) and (8) are aligned and arranged so as to overlap with a gap via a plurality of spacers (75), and the adjacent flexible substrates (7) In (8), a plurality of protruding pieces (74) having a width that does not hinder the bending of the curved use area (71) from the side edge of the curved use area (71) of one of the substrates (7) and the substrate (7). A signal transmitting means which is integrally provided with a projection, and the projection (74) is three-dimensionally folded back to the opposite side edge, and the folded tip is joined to the substrate (7) to form the spacer (75). 信号を送信又は受信する一方の部材に一端を接続し、信号を送信又は受信する他方の部材に他端を接続するフレキシブルな信号伝達手段であって、複数のフレキシブル基板(7)(8)を各基板(7)(8)の湾曲使用領域(71)(81)の向きを揃え且つ複数のスペーサ(75)を存して隙間を存して重なる様に配置し、隣り合うフレキシブル基板(7)(8)の内、一方の基板(7)の湾曲使用領域(71)の両側縁から湾曲使用領域(71)の湾曲を妨げない幅の複数の突片(76)(76)を基板と一体に突設し、該突片を基板(7)上に立体的に折り返して折返し先端を基板(7)に接合して基板(7)上に2列に前記スペーサ(75)を形成している信号伝達手段。Flexible signal transmission means for connecting one end to one member for transmitting or receiving a signal and connecting the other end to the other member for transmitting or receiving a signal, comprising a plurality of flexible substrates (7) and (8). The directions of the curved use areas (71) and (81) of the substrates (7) and (8) are aligned, and a plurality of spacers (75) are arranged so as to overlap with a gap therebetween. In (8), a plurality of protruding pieces (76) and (76) having a width which does not hinder the bending of the curved use area (71) from both side edges of the curved use area (71) of one of the substrates (7). The spacers (75) are formed in two rows on the substrate (7) by integrally projecting and projecting the protruding pieces three-dimensionally on the substrate (7) and joining the folded ends to the substrate (7). Signal transmission means. フレキシブル基板(7)の突片(74)側の側縁に、突片(74)の先端側に迂回してアース線(77)が通っている請求項1に記載の信号伝達手段。2. The signal transmission means according to claim 1, wherein a ground wire (77) passes around a side edge of the flexible board (7) on a side of the projecting piece (74), bypassing a tip side of the projecting piece (74). 各フレキシブル基板(7)(8)の湾曲使用領域(71)(81)側の一端を、光ピックアップ装置(1)のピックアップアセンブリー(3)を含むスライド部材(2)上に接続し、他端を、該スライド部材(2)のスライド移行路に接近して定位置に配備した回路基板(5)に連繋している光ピックアップ装置。One end of each flexible substrate (7) (8) on the side of the curved use area (71) (81) is connected to a slide member (2) including a pickup assembly (3) of an optical pickup device (1), and An optical pickup device having an end connected to a circuit board (5) disposed at a fixed position close to a slide transition path of the slide member (2).
JP2002222231A 2002-07-31 2002-07-31 Signal transmission means using flexible board Withdrawn JP2004063356A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100375164C (en) * 2005-01-18 2008-03-12 日立视听媒体股份有限公司 Optical disk drive apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100375164C (en) * 2005-01-18 2008-03-12 日立视听媒体股份有限公司 Optical disk drive apparatus
US7475412B2 (en) 2005-01-18 2009-01-06 Hitachi Media Electronics Co., Ltd. Optical disk drive apparatus having a flexible substrate and wiring conductors

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