JP2004146206A - Flexible flat cable - Google Patents

Flexible flat cable Download PDF

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Publication number
JP2004146206A
JP2004146206A JP2002309984A JP2002309984A JP2004146206A JP 2004146206 A JP2004146206 A JP 2004146206A JP 2002309984 A JP2002309984 A JP 2002309984A JP 2002309984 A JP2002309984 A JP 2002309984A JP 2004146206 A JP2004146206 A JP 2004146206A
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Japan
Prior art keywords
conductor
conductors
flat cable
cable
ffc
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JP2002309984A
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Japanese (ja)
Inventor
Yasuo Takemura
竹村 安男
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Fujikura Ltd
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Fujikura Ltd
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Priority to JP2002309984A priority Critical patent/JP2004146206A/en
Publication of JP2004146206A publication Critical patent/JP2004146206A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To make the free combination of the conductor width of a conductor possible. <P>SOLUTION: This FFC 1 has such structure that each of a plurality of flat square conductors 2a-2c made of a copper foil or a copper strip is interposed from the upper and lower side between insulating resin films 3a, 3b, and a main covering part 4a covering the periphery of the flat square conductors 2a-2c and an extending part 4b extending in the direction perpendicularly crossing to the length direction of the flat square conductors 2a-2c of the main covering part 4a are formed in each of the flat square conductors 2a-2c, and the adjacent extending parts of each of the flat square conductors 2a-2c are joined by heat seal to arrange in a plane shape. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
この発明は、平角導体などの導体を絶縁被覆で覆った構造からなる配線材料等として使用されるフレキシブルフラットケーブル(FFC)に関し、特に平角導体の導体幅の自在な組み合わせが可能なフレキシブルフラットケーブルに関する。
【0002】
【従来の技術】
現在、パソコン等の電子機器やエアコン等の家電製品の配線材料として、フレキシブルフラットケーブルが多用されている。図7は、フレキシブルフラットケーブルを示す一部断面斜視図である。図7に示すように、フレキシブルフラットケーブル100は、回路を構成する矩形断面を有する複数の銅箔或いは銅条等の平角導体101の周囲を、例えばポリエステルフィルム等の絶縁樹脂フィルム102で絶縁被覆した構造からなる(例えば、特許文献1参照。)。
【0003】
【特許文献1】
特開平9−199816号公報(第3−4頁、第1−6図)
【0004】
【発明が解決しようとする課題】
しかしながら、このような構造のフレキシブルフラットケーブル100は、例えば同一導体幅の複数の平角導体101を絶縁樹脂フィルム102で上下から挟み込んで製造したりする構造のため、異なる導体幅の平角導体でフレキシブルフラットケーブル100の回路を構成する場合、フレキシブルフラットケーブル同士の汎用性が無いため新たな製造工程が必要となると共に、相応の種類のフレキシブルフラットケーブルをそろえる必要があり、種類毎にフレキシブルフラットケーブルの在庫をかかえることになる。また、異なる導体幅の平角導体でフレキシブルフラットケーブル100を作製するには、平角導体101の本数(回路数)及び絶縁樹脂フィルム102のフィルム幅を変更するなどの煩雑な作業が必要となる。
【0005】
この発明は、このような事情を鑑みてなされたもので、導体の導体幅の自在な組み合わせが可能なフレキシブルフラットケーブルを提供することを目的とする。
【0006】
【課題を解決するための手段】
この発明に係るフレキシブルフラットケーブルは、ケーブル状の導体、この導体の周囲を被覆する主被覆部及びその主被覆部の両側縁から前記導体の長手方向と直交する方向に延出した延出部を備えたケーブル要素を、複数平行に配置して隣接する前記延出部同士を接合することにより、全体的に平面状に形成されたことを特徴とする。
【0007】
この発明のフレキシブルフラットケーブルによれば、フレキシブルフラットケーブルを構成する各ケーブル要素が、主被覆部の両側縁から導体の長手方向と直交する方向に延出した延出部同士を、全体的に平面状になるように接合した構造からなるため、各ケーブル要素の導体の導体幅を自在に組み合わせることが可能となる。これにより、フレキシブルフラットケーブルの導体の本数、導体幅及び並びの自在な組み合わせを実現することができる。
【0008】
なお、この発明のフレキシブルフラットケーブルは、それぞれのケーブル要素について隣接させるケーブル要素との延出部同士を、延出部の厚さ方向に重ね合わせて接合した構造であっても良い。
【0009】
この場合、延出部は、複数のケーブル要素が互いに接合された状態で、導体が同一平面上に配置されるような形状及び厚みに設定されていることが好ましい。
【0010】
また、複数のケーブル要素の導体のうち、少なくとも一の導体は他の導体とは異なる断面積を有するものであることが好ましく、例えば平角導体である場合、少なくとも一の平角導体は他の平角導体とは幅が異なるものであることが好ましい。
【0011】
なお、延出部同士の接合は、熱溶着、振動溶着、超音波溶着、レーザ溶着及び接着剤の少なくとも1つで行われていることが好ましい。
【0012】
【発明の実施の形態】
以下、添付の図面を参照して、この発明の好ましい実施の形態を説明する。
図1は、この発明の一実施形態に係るフレキシブルフラットケーブルを示す一部断面斜視図及び分解断面図である。
図1(a)に示すように、フレキシブルフラットケーブル(以下、「FFC」と呼ぶ。)1は、ケーブルの回路を構成する矩形断面を有する銅箔や銅条からなる複数の平角導体2a〜2cを、それぞれ上下から絶縁樹脂フィルム3a,3bで挟み込み、それぞれの平角導体2a〜2cについて、平角導体2a〜2cの周囲を被覆する主被覆部4a及びこの主被覆部4aの平角導体2a〜2cの長手方向と直交する方向に延出した延出部4bを形成し、同図(b)に示すように、それぞれの平角導体2a〜2cについて隣接させる平角導体との延出部4b同士を、例えば延出部4bの延出方向端部4cが密着するように、図中矢印方向に当接した後に接合して平面状に並設した構造からなる。
【0013】
延出部4b同士の接合は、例えば熱溶着、振動溶着、超音波溶着、レーザ溶着及び接着剤のうちの少なくとも1つで行われており、平角導体2aは平角導体2bよりも導体幅が広く、平角導体2bは平角導体2cよりも導体幅が広い構造となっている。
【0014】
このような構造のFFC1によれば、1本ずつ絶縁被覆した平角導体2を自由に組み合わせてケーブルの回路を構成することができると共に、平角導体2の導体幅を自在に組み合わせてFFC1を構成することが可能となるため、平角導体2の本数、導体幅及び並び等の自在な組み合わせを簡単に実現することができる。
【0015】
図2は、この発明の一実施形態に係る他のFFCを示す一部断面斜視図及び断面図である。なお、以降において既に説明した部分と重複する説明は割愛する。
図2(a)に示すFFC1´は、先の例のFFC1に比べ、それぞれの平角導体2a〜2cの主被覆部4aに形成された延出部4bの延出方向端部4cが、平角導体2の厚さ方向に対して斜めに形成されている点が相違している。従って、同図(b)に示すように、延出部4b同士を、その延出方向端部4c同士が密着するように当接して接合すれば、同図(c)に示すように複数の平角導体2a〜2cを平面状に並設した構造のFFC1´を製造することができる。このFFC1´によれば、上述したように1本ずつ絶縁被覆した平角導体2を自由に組み合わせてケーブルの回路を構成することができると共に、平角導体2の導体幅を自在に組み合わせてFFC1´を構成することが可能となるため、平角導体2の本数、導体幅及び並び等の自在な組み合わせを簡単に実現することができる。
【0016】
図3は、この発明の他の実施形態に係るFFCを示す一部断面斜視図及び断面図である。
図3(a)に示すFFC10は、先の例のFFC1に比べ、それぞれの平角導体2a〜2cの主被覆部4aに形成された延出部4b同士を、同図(b)に示すように図中矢印方向(延出部4bの厚さ方向)に重ね合わせた後に接合して、同図(c)に示すように、複数の平角導体2a〜2cを平面状に並設した点が相違している。このFFC10によれば、1本ずつ絶縁被覆した平角導体2を自由に組み合わせてケーブルの回路を構成することができると共に、平角導体2の導体幅を自在に組み合わせてFFC10を構成することが可能となるため、平角導体2の本数、導体幅及び並び等の自在な組み合わせを簡単に実現することができる。
【0017】
図4は、この発明の他の実施形態に係る他のFFCを示す一部断面斜視図及び断面図である。
図4(a)に示すFFC11は、先の例のFFC10に比べ、それぞれの平角導体2a〜2cの主被覆部4aに形成された延出部4bに、絶縁樹脂フィルム3a、3bの一方の表面から延出部4bの延出方向端部4cにわたって所定量落ち込んでなる段部4dが、それぞれの延出部4bにおいてその落ち込み方向が異なる状態で形成され、その落ち込み方向が異なる段部4d同士が密接するように係合させた後に接合して、同図(c)に示すように、複数の平角導体2a〜2cを平面状に並設した点が相違している。このFFC11によれば、1本ずつ絶縁被覆した平角導体2を自由に組み合わせてケーブルの回路を構成することができると共に、平角導体2の導体幅を自在に組み合わせてFFC11を構成することが可能となるため、平角導体2の本数、導体幅及び並び等の自在な組み合わせを簡単に実現することができる。
【0018】
図5は、この発明の他の実施形態に係る更に他のFFCを示す断面図である。
図5(a)に示すFFC12は、先の例のFFC11に比べ、段部4dを形成する代わりに、それぞれの平角導体2a〜2cの主被覆部4aに形成された延出部4bの延出位置が、平角導体2a〜2cの厚さ方向に対して上下異なり、且つ幅方向に対して非対称となるように構成され、図中矢印方向に延出位置の異なる延出部4b同士を重ね合わせて接合し、同図(b)に示すように、複数の平角導体2a〜2cを平面状に並設した点が相違する。このFFC12によれば、1本ずつ絶縁被覆した平角導体2を自由に組み合わせてケーブルの回路を構成することができると共に、平角導体2の導体幅を自在に組み合わせてFFC12を構成することが可能となるため、平角導体2の本数、導体幅及び並び等の自在な組み合わせを簡単に実現することができる。
【0019】
図6は、この発明の一実施形態に係るFFCの接合構造を説明するための断面図である。
図6(a)に示すように、FFC20は、複数の平角導体21a,21bを絶縁樹脂フィルム3a,3bで被覆した構造からなるFFC13と、1つの平角導体21cを絶縁樹脂フィルム3a,3bで被覆した構造からなるFFC14,15とを、FFCの長手方向と直交する方向の端部に形成された延出部4b同士を、延出部4bの延出方向端部4cが当接してそれぞれのFFC13〜15が平面状に並設されるように接合してなる。
【0020】
延出部4b同士は、例えば熱溶着、振動溶着、超音波溶着、レーザ溶着及び接着剤のうちの少なくとも1つで接合されており、FFC13の平角導体21a,21bは同一導体幅で、FFC14の平角導体21cよりも導体幅が広く、FFC15の平角導体21dは、FFC13の平角導体21a,21bよりも導体幅が広い構造となっている。
【0021】
このような接合構造を適用したFFC20によれば、導体幅の異なる平角導体21a〜21dにより構成される複数のFFC13〜15を組み合わせて接合し、1つのFFCを構成することが可能となるため、平角導体21の本数、導体幅及び並び等の異なるFFCを自在に組み合わせて1つのFFCを製造することが可能となる。これにより、既存のFFC同士を接合して任意の回路構造を実現したFFCを製造することができる。
【0022】
なお、同図(b)に示すように、各FFC13〜15の延出部4bの延出方向端部4dを上述したように斜めに形成して接合したり、同図(c)に示すように、各FFC13〜15の延出部4bを上述したようにその厚さ方向に重ね合わせて接合したり、同図(d)に示すように、各FFC13〜15の延出部4bに形成された落ち込み方向が異なる段部4d同士を上述したように係合させて接合したり、同図(e)に示すように、各FFC13〜15の延出位置の異なる段部4b同士を上述したように重ね合わせて接合したりして1つのFFC20を形成するようにしても良い。
【0023】
上記実施例では、平角導体2,21の絶縁被覆として絶縁樹脂フィルム3a,3bを用いて説明したが、押出成形等により絶縁被覆を形成するようにしても良いことは言うまでもない。
【0024】
【発明の効果】
以上述べたように、この発明のフレキシブルフラットケーブルによれば、フレキシブルフラットケーブルを構成する各ケーブル要素が、主被覆部の両側縁から導体の長手方向と直交する方向に延出した延出部同士を、全体的に平面状になるように接合した構造からなるため、各ケーブル要素の導体の導体幅を自在に組み合わせることが可能となる。これにより、フレキシブルフラットケーブルの導体の本数、導体幅及び並びの自在な組み合わせを実現することができる。
【図面の簡単な説明】
【図1】この発明の一実施形態に係るフレキシブルフラットケーブルを示す一部断面斜視図及び分解斜視図である。
【図2】同実施形態に係る他のフレキシブルフラットケーブルを示す一部断面斜視図及び断面図である。
【図3】この発明の他の実施形態に係るフレキシブルフラットケーブルを示す一部断面斜視図及び断面図である。
【図4】同他の実施形態に係る他のフレキシブルフラットケーブルを示す一部断面斜視図及び断面図である。
【図5】同他の実施形態に係る更に他のフレキシブルフラットケーブルを示す断面図である。
【図6】この発明の一実施形態に係るフレキシブルフラットケーブルの接合構造を説明するための断面図である。
【図7】フレキシブルフラットケーブルを示す一部断面斜視図である。
【符号の説明】1,1´,10〜15,20…フレキシブルフラットケーブル、2,21…平角導体、3…絶縁樹脂フィルム、4a…主被覆部、4b…延出部、4c…延出方向端部、4d…段部。
[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible flat cable (FFC) used as a wiring material or the like having a structure in which a conductor such as a rectangular conductor is covered with an insulating coating, and more particularly to a flexible flat cable in which the conductor width of a rectangular conductor can be freely combined. .
[0002]
[Prior art]
At present, flexible flat cables are widely used as wiring materials for electronic devices such as personal computers and home electric appliances such as air conditioners. FIG. 7 is a partially sectional perspective view showing a flexible flat cable. As shown in FIG. 7, the flexible flat cable 100 has a plurality of rectangular conductors 101 such as copper foils or copper strips having a rectangular cross section constituting a circuit, which are insulated and covered with an insulating resin film 102 such as a polyester film. (For example, refer to Patent Document 1).
[0003]
[Patent Document 1]
JP-A-9-199816 (page 3-4, FIG. 1-6)
[0004]
[Problems to be solved by the invention]
However, since the flexible flat cable 100 having such a structure is manufactured by sandwiching a plurality of rectangular conductors 101 having the same conductor width from above and below with an insulating resin film 102, for example, a flexible flat cable having different conductor widths is used. When configuring the circuit of the cable 100, a new manufacturing process is required because there is no versatility between the flexible flat cables, and it is necessary to prepare appropriate types of flexible flat cables. You will have In addition, in order to manufacture the flexible flat cable 100 using rectangular conductors having different conductor widths, complicated operations such as changing the number of the rectangular conductors 101 (the number of circuits) and the film width of the insulating resin film 102 are required.
[0005]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a flexible flat cable capable of freely combining conductor widths of conductors.
[0006]
[Means for Solving the Problems]
The flexible flat cable according to the present invention includes a cable-like conductor, a main covering portion covering the periphery of the conductor, and an extending portion extending from both side edges of the main covering portion in a direction perpendicular to the longitudinal direction of the conductor. A plurality of the provided cable elements are arranged in parallel, and the extending portions adjacent to each other are joined to each other to form an overall planar shape.
[0007]
According to the flexible flat cable of the present invention, each of the cable elements constituting the flexible flat cable is formed such that the extending portions extending from both side edges of the main covering portion in a direction orthogonal to the longitudinal direction of the conductor are entirely flat. Since it has a structure joined so as to have a shape, the conductor width of the conductor of each cable element can be freely combined. Thereby, a flexible combination of the number of conductors, the conductor width, and the arrangement of the flexible flat cable can be realized.
[0008]
In addition, the flexible flat cable of the present invention may have a structure in which each cable element is overlapped with and joined to the adjacent cable element in the thickness direction of the extension part.
[0009]
In this case, it is preferable that the extending portion is set in a shape and a thickness such that the conductor is arranged on the same plane in a state where the plurality of cable elements are joined to each other.
[0010]
Further, among the conductors of the plurality of cable elements, it is preferable that at least one conductor has a cross-sectional area different from that of the other conductor.For example, when the conductor is a rectangular conductor, at least one rectangular conductor is formed of another rectangular conductor. Is preferably different in width.
[0011]
The joining of the extending portions is preferably performed by at least one of heat welding, vibration welding, ultrasonic welding, laser welding, and an adhesive.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a partially sectional perspective view and an exploded sectional view showing a flexible flat cable according to an embodiment of the present invention.
As shown in FIG. 1 (a), a flexible flat cable (hereinafter referred to as "FFC") 1 is composed of a plurality of rectangular conductors 2a to 2c made of copper foil or copper strip having a rectangular cross section constituting a circuit of the cable. Are sandwiched between insulating resin films 3a and 3b from above and below, respectively, and for each of the rectangular conductors 2a to 2c, the main covering portion 4a that covers the periphery of the rectangular conductors 2a to 2c and the rectangular conductors 2a to 2c of the main covering portion 4a. An extending portion 4b extending in a direction perpendicular to the longitudinal direction is formed, and as shown in FIG. 2B, the extending portions 4b of the rectangular conductors 2a to 2c and the adjacent rectangular conductors are connected to each other, for example. The extension portion 4b has a structure in which the end portions 4c in the extension direction are brought into close contact with each other in the direction indicated by the arrow in the drawing and then joined to form a planar arrangement.
[0013]
The extension portions 4b are joined to each other by, for example, at least one of heat welding, vibration welding, ultrasonic welding, laser welding, and an adhesive, and the rectangular conductor 2a has a wider conductor width than the rectangular conductor 2b. The rectangular conductor 2b has a wider conductor width than the rectangular conductor 2c.
[0014]
According to the FFC 1 having such a structure, the cable circuit can be configured by freely combining the rectangular conductors 2 that are insulated and coated one by one, and the FFC 1 is configured by freely combining the conductor widths of the rectangular conductors 2. Therefore, any combination such as the number of the rectangular conductors 2, the conductor width, and the arrangement can be easily realized.
[0015]
FIG. 2 is a partially sectional perspective view and a sectional view showing another FFC according to an embodiment of the present invention. In addition, the description which overlaps with the part already described below is omitted.
The FFC 1 ′ shown in FIG. 2A is different from the FFC 1 in the previous example in that the extending direction end 4 c of the extending portion 4 b formed on the main covering portion 4 a of each of the rectangular conductors 2 a to 2 c is a rectangular conductor. 2 in that they are formed obliquely to the thickness direction. Therefore, as shown in FIG. 3B, if the extending portions 4b are brought into contact with each other so that the extending end portions 4c are in close contact with each other and joined, a plurality of extending portions 4b are formed as shown in FIG. An FFC 1 ′ having a structure in which the rectangular conductors 2 a to 2 c are arranged in a plane can be manufactured. According to this FFC 1 ′, as described above, it is possible to form a cable circuit by freely combining the rectangular conductors 2 that are insulated and coated one by one, and to combine the conductor widths of the rectangular conductors 2 freely to form the FFC 1 ′. Since it can be configured, it is possible to easily realize any combination such as the number, the conductor width, and the arrangement of the rectangular conductors 2.
[0016]
FIG. 3 is a partial sectional perspective view and a sectional view showing an FFC according to another embodiment of the present invention.
The FFC 10 shown in FIG. 3A is different from the FFC 1 of the previous example in that the extending portions 4b formed on the main covering portions 4a of the rectangular conductors 2a to 2c are connected to each other as shown in FIG. The difference is that a plurality of rectangular conductors 2a to 2c are juxtaposed in a plane as shown in FIG. 3 (c), which are joined after being superposed in the direction of the arrow (thickness direction of the extension 4b) in the drawing. are doing. According to the FFC 10, it is possible to form a cable circuit by freely combining the rectangular conductors 2 that are insulated and coated one by one, and to configure the FFC 10 by freely combining the conductor widths of the rectangular conductors 2. Therefore, any combination such as the number of the rectangular conductors 2, the conductor width, and the arrangement can be easily realized.
[0017]
FIG. 4 is a partial sectional perspective view and a sectional view showing another FFC according to another embodiment of the present invention.
The FFC 11 shown in FIG. 4A has one surface of the insulating resin films 3a and 3b on the extension 4b formed on the main covering portion 4a of each of the rectangular conductors 2a to 2c as compared with the FFC 10 of the previous example. From each other, a step portion 4d which is lowered by a predetermined amount over the extension direction end portion 4c of the extension portion 4b is formed in a state where the drop direction is different in each extension portion 4b, and the step portions 4d having different drop directions are formed. The difference is that a plurality of rectangular conductors 2a to 2c are juxtaposed in a plane as shown in FIG. According to the FFC 11, it is possible to form a cable circuit by freely combining the rectangular conductors 2 that are insulated and coated one by one, and to configure the FFC 11 by freely combining the conductor widths of the rectangular conductors 2. Therefore, any combination such as the number of the rectangular conductors 2, the conductor width, and the arrangement can be easily realized.
[0018]
FIG. 5 is a sectional view showing still another FFC according to another embodiment of the present invention.
The FFC 12 shown in FIG. 5A is different from the FFC 11 of the previous example in that, instead of forming the step portion 4d, the extension portion 4b formed on the main covering portion 4a of each of the rectangular conductors 2a to 2c extends. The positions are configured so as to be vertically different from each other in the thickness direction of the rectangular conductors 2a to 2c and asymmetric with respect to the width direction. The difference is that a plurality of rectangular conductors 2a to 2c are arranged in a plane as shown in FIG. According to the FFC 12, it is possible to configure a cable circuit by freely combining the rectangular conductors 2 that are insulated and coated one by one, and to configure the FFC 12 by freely combining the conductor widths of the rectangular conductors 2. Therefore, any combination such as the number of the rectangular conductors 2, the conductor width, and the arrangement can be easily realized.
[0019]
FIG. 6 is a cross-sectional view for explaining the joining structure of the FFC according to one embodiment of the present invention.
As shown in FIG. 6A, the FFC 20 has a structure in which a plurality of rectangular conductors 21a and 21b are covered with insulating resin films 3a and 3b, and one rectangular conductor 21c is covered with insulating resin films 3a and 3b. The FFCs 14 and 15 having the above-described structures are connected to the extending portions 4b formed at the ends in the direction orthogonal to the longitudinal direction of the FFC, and the extending direction ends 4c of the extending portions 4b are brought into contact with the FFCs 13 and 15. To 15 are jointed so as to be arranged in a plane.
[0020]
The extending portions 4b are joined to each other by at least one of, for example, heat welding, vibration welding, ultrasonic welding, laser welding, and an adhesive, and the flat conductors 21a and 21b of the FFC 13 have the same conductor width, and the The conductor width is wider than the rectangular conductor 21c, and the rectangular conductor 21d of the FFC 15 has a structure in which the conductor width is wider than the rectangular conductors 21a and 21b of the FFC 13.
[0021]
According to the FFC 20 to which such a joining structure is applied, a plurality of FFCs 13 to 15 constituted by the rectangular conductors 21 a to 21 d having different conductor widths can be combined and joined to form one FFC. One FFC can be manufactured by freely combining FFCs having different numbers, conductor widths, and arrangements of the rectangular conductors 21. As a result, it is possible to manufacture an FFC in which existing FFCs are joined together to realize an arbitrary circuit structure.
[0022]
As shown in FIG. 3B, the extending direction end 4d of the extending portion 4b of each of the FFCs 13 to 15 is formed obliquely and joined as described above, or as shown in FIG. Then, the extension portions 4b of the FFCs 13 to 15 are overlapped and joined in the thickness direction as described above, or are formed on the extension portions 4b of the FFCs 13 to 15 as shown in FIG. The stepped portions 4d having different falling directions are engaged with each other and joined as described above, or as shown in FIG. 4E, the stepped portions 4b having different extending positions of the FFCs 13 to 15 are connected to each other as described above. One FFC 20 may be formed by superimposing and joining.
[0023]
In the above embodiment, the insulating resin films 3a and 3b were used as the insulating coatings of the rectangular conductors 2 and 21, but it goes without saying that the insulating coatings may be formed by extrusion or the like.
[0024]
【The invention's effect】
As described above, according to the flexible flat cable of the present invention, each of the cable elements constituting the flexible flat cable has an extension portion extending from both side edges of the main coating portion in a direction orthogonal to the longitudinal direction of the conductor. Are joined together so as to be entirely planar, so that the conductor width of the conductor of each cable element can be freely combined. Thereby, a flexible combination of the number of conductors, the conductor width, and the arrangement of the flexible flat cable can be realized.
[Brief description of the drawings]
FIG. 1 is a partially sectional perspective view and an exploded perspective view showing a flexible flat cable according to an embodiment of the present invention.
FIG. 2 is a partially sectional perspective view and a sectional view showing another flexible flat cable according to the embodiment.
FIG. 3 is a partially sectional perspective view and a sectional view showing a flexible flat cable according to another embodiment of the present invention.
FIG. 4 is a partially sectional perspective view and a sectional view showing another flexible flat cable according to another embodiment.
FIG. 5 is a sectional view showing still another flexible flat cable according to the other embodiment.
FIG. 6 is a cross-sectional view illustrating a joint structure of a flexible flat cable according to an embodiment of the present invention.
FIG. 7 is a partial sectional perspective view showing a flexible flat cable.
[Description of Signs] 1, 1 ', 10 to 15, 20: Flexible flat cable, 2, 21: rectangular conductor, 3: insulating resin film, 4a: main coating, 4b: extension, 4c: extension direction End, 4d ... step.

Claims (6)

ケーブル状の導体、この導体の周囲を被覆する主被覆部及びその主被覆部の両側縁から前記導体の長手方向と直交する方向に延出した延出部を備えたケーブル要素を、複数平行に配置して隣接する前記延出部同士を接合することにより、全体的に平面状に形成された
ことを特徴とするフラットケーブル。
A plurality of cable elements each having a cable-shaped conductor, a main covering portion covering the periphery of the conductor, and an extending portion extending from both side edges of the main covering portion in a direction orthogonal to the longitudinal direction of the conductor, A flat cable, which is formed as a whole in a planar shape by arranging and joining the adjacent extension portions.
それぞれの前記ケーブル要素について隣接させるケーブル要素との前記延出部同士を、前記延出部の厚さ方向に重ね合わせて接合したことを特徴とする請求項1記載のフラットケーブル。2. The flat cable according to claim 1, wherein the extension portions of the cable elements adjacent to each other are overlapped and joined in a thickness direction of the extension portions. 3. 前記延出部は、前記複数のケーブル要素が互いに接合された状態で、前記導体が同一平面上に配置されるような形状及び厚みに設定されていることを特徴とする請求項1又は2記載のフラットケーブル。The said extension part is set to the shape and thickness so that the said conductor may be arrange | positioned on the same plane in the state which the said several cable element was joined together. Flat cable. 前記複数のケーブル要素の導体のうち、少なくとも一の導体は他の導体とは異なる断面積を有するものであることを特徴とする請求項1〜3のいずれか1項記載のフラットケーブル。The flat cable according to any one of claims 1 to 3, wherein at least one of the conductors of the plurality of cable elements has a different cross-sectional area from other conductors. 前記複数のケーブル要素の前記導体は、平角導体からなり、少なくとも一の平角導体は他の平角導体とは幅が異なるものであることを特徴とする請求項4記載のフラットケーブル。The flat cable according to claim 4, wherein the conductors of the plurality of cable elements are rectangular conductors, and at least one of the rectangular conductors has a width different from that of the other rectangular conductors. 前記延出部同士の接合は、熱溶着、振動溶着、超音波溶着、レーザ溶着及び接着剤の少なくとも1つで行われていることを特徴とする請求項1〜5のいずれか1項記載のフラットケーブル。The joint of the extending portions is performed by at least one of heat welding, vibration welding, ultrasonic welding, laser welding, and an adhesive. Flat cable.
JP2002309984A 2002-10-24 2002-10-24 Flexible flat cable Pending JP2004146206A (en)

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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006294489A (en) * 2005-04-13 2006-10-26 Sumitomo Electric Ind Ltd Flat cable
JP2018157897A (en) * 2017-03-22 2018-10-11 Necエンベデッドプロダクツ株式会社 Blanching device, communication device, game machine and blanching method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006294489A (en) * 2005-04-13 2006-10-26 Sumitomo Electric Ind Ltd Flat cable
JP2018157897A (en) * 2017-03-22 2018-10-11 Necエンベデッドプロダクツ株式会社 Blanching device, communication device, game machine and blanching method

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