JP6361310B2 - Flat cable manufacturing method and flat cable - Google Patents

Description

  The present invention relates to a flat cable manufacturing method and a flat cable.

  Depending on the wiring path of the flat cable, it may be necessary to bend the conductor. In such a case, conventionally, a flat cable in which a plurality of insulated conductors are arranged in a straight line on the same plane is connected to the plurality of insulated conductors, and the cable length is connected to the connecting portion of the plurality of insulated conductors. A method is known in which a flat cable is bent on the same plane by providing slits along the direction (see, for example, Patent Document 1).

JP 2004-119071 A

  In the flat cable of Patent Document 1, in order not to damage the insulated conductors by the slits provided in the connecting portions of the plurality of insulated conductors, it is necessary to keep the distance between the connected insulated conductors at a predetermined distance or more. The cable must be enlarged in the width direction. Further, the thickness is increased by bending the flat cable. These are disadvantages when wiring in a limited place. Also, it is necessary to bend the flat cable.

  The present invention can easily obtain a state where a plurality of electric wires are bent in the parallel direction, and provides a method for manufacturing a small flat cable and a flat cable in the width direction and the thickness direction.

The flat cable manufacturing method according to the present invention is as follows.
(1) A method of manufacturing a flat cable in which a plurality of electric wires drawn out from a winding frame are arranged in a planar shape, and an insulating film is attached from either the upper side or the lower side of the arrangement surface,
The side closer to the winding frame of the plurality of electric wires arranged in parallel is respectively accommodated in the groove portion of the alignment portion having the plurality of groove portions arranged in parallel, and the side far from the winding frame of the electric wires arranged in parallel is held by the gripping portion. An electric wire arrangement step of arranging a plurality of bending forming portions for holding and bending each of the electric wires between the holding portion and the alignment portion;
An electric wire bending step of bending each of the electric wires at a contact point with each of the bending forming portions by moving the gripping portion within the arrangement plane of the electric wires with respect to the alignment portion;
And an insulating film sticking step of sticking the insulating film to the electric wires from either the upper side or the lower side of the arrangement surface.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to obtain easily the state which bent the several electric wire in the parallel direction, the manufacturing method and flat cable of a small flat cable are provided in the width direction and the thickness direction. it can.

It is a top view of the flat cable which concerns on this embodiment. It is sectional drawing in the AA of the flat cable shown in FIG. It is a schematic block diagram of the manufacturing apparatus used for the manufacturing method of the flat cable which concerns on this embodiment. It is a front view of the straightening roller and presser roller which comprise the straightening part of a manufacturing apparatus. It is a top view in a process part. It is a front view of a holding part. It is sectional drawing of an alignment block. It is a front view of a bending formation part. It is a perspective view of a bending formation part. It is a top view in the process part explaining an electric wire arrangement | positioning process. It is a figure explaining an electric wire bending process, Comprising: (a)-(c) is a top view in a process part, respectively. It is a top view of the state by which the insulating film was arrange | positioned above the arrangement | sequence surface of the electric wire explaining an insulating film sticking process. It is a top view in the process part explaining the modification of the manufacturing method of a flat cable. It is a figure explaining the electric wire bending process in a modification, Comprising: (a)-(c) is a top view in a process part, respectively. It is a top view of the state by which the insulating film was arrange | positioned above the arrangement surface of the electric wire explaining the insulating film sticking process in a modification. It is sectional drawing of the flat cable provided with the other electric wire.

<Outline of Embodiment of the Present Invention>
First, an outline of an embodiment of the present invention will be described.
One embodiment of a flat cable manufacturing method according to the present invention is:
(1) A method of manufacturing a flat cable in which a plurality of electric wires drawn out from a winding frame are arranged in a planar shape, and an insulating film is attached from either the upper side or the lower side of the arrangement surface,
The side closer to the winding frame of the plurality of electric wires arranged in parallel is respectively accommodated in the groove portion of the alignment portion having the plurality of groove portions arranged in parallel, and the side far from the winding frame of the electric wires arranged in parallel is held by the gripping portion. An electric wire arrangement step of arranging a plurality of bending forming portions for holding and bending each of the electric wires between the holding portion and the alignment portion;
An electric wire bending step of bending each of the electric wires at a contact point with each of the bending forming portions by moving the gripping portion within the arrangement plane of the electric wires with respect to the alignment portion;
And an insulating film sticking step of sticking the insulating film on the electric wires from either the upper side or the lower side of the arrangement surface.
According to the manufacturing method of (1), the state bent in the parallel direction can be easily obtained without damaging a plurality of electric wires, and a small flat cable can be manufactured.

(2) In the electric wire bending step, each of the bent forming portions is moved along the direction orthogonal to the arrangement direction of the plurality of groove portions along with the movement of the gripping portion, thereby spacing between the electric wires to be bent. May be maintained.
According to the production method (2), it is possible to produce a flat cable free from defects such as the proximity of each electric wire or meandering.

(3) In the electric wire arrangement step, a holding portion having a plurality of groove portions capable of accommodating the electric wires is arranged between the gripping portion and each of the bending forming portions so that the electric wires are accommodated in the groove portions of the holding portion. ,
In the electric wire bending step, the holding part may be moved in the same direction as the holding part together with the holding part.
According to the manufacturing method of (3), the holding | maintenance part can maintain the alignment state of the one end side of an electric wire reliably.

(4) At least in the wire bending step, the tension of the plurality of wires may be individually adjusted.
According to the manufacturing method of (4), a plurality of electric wires can be bent easily and without difficulty.

(5) In the insulating film affixing step, after the insulating film is affixed to the electric wire from above the groove part to the upper side of the arrangement surface, the alignment part is moved away from the arrangement surface of the electric wire, and the electric wire is arranged. You may affix the said insulating film on the other side of a surface.
According to the manufacturing method of (5), the flat cable by which the insulating film was affixed on the upper and lower surfaces of the arrangement surface of the electric wire which has a bending part can be manufactured easily.

<Details of Embodiment of the Present Invention>
Hereinafter, an example of a flat cable manufacturing method and a flat cable embodiment according to the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the flat cable 10 includes a plurality of (5 in this example) electric wires 11 arranged in a plane and a pair of insulating films 12 covering the five arranged electric wires 11. And. One end 11 </ b> A and the other end 11 </ b> B of the electric wire 11 are exposed from the insulating film 12. One end 11 </ b> A and the other end 11 </ b> B of the exposed electric wire 11 of the flat cable 10 are soldered and connected to a substrate. A connector may be attached to one end 11A and the other end 11B of the electric wire 11.

  The electric wire 11 is made of a rectangular conductor having a substantially flat rectangular cross section, and is made of, for example, a tin-plated copper conductor. In the cross section perpendicular to the central axis direction of the electric wire 11, the ratio of the length (thickness) L1 in the vertical direction to the length (width) L2 in the horizontal direction is, for example, in the range of 2: 1 to 1:10. Is set to The width of each electric wire 11 is, for example, 0.3 mm or less.

  The pair of insulating films 12 are made of, for example, a polyester resin. The insulating film 12 is provided with an adhesive layer 13 made of a thermoplastic resin, a thermosetting resin, an ultraviolet curable resin, or the like on the surfaces facing each other. For example, the insulating film 12 has a width of 50 to 180 mm and a thickness (the thickness of the adhesive layer and the base material layer) of about 50 to 75 μm.

  The pair of insulating films 12 are bonded to each other via an adhesive layer 13 in a state where the electric wires 11 arranged in a planar shape are sandwiched from both the upper and lower sides of the arrangement surface. Thereby, the several electric wire 11 is covered with the insulating film 12, and is integrated.

  The flat cable 10 has one or more bent portions 21 (one in this example). In the bent portion 21, the five electric wires 11 are bent along the arrangement surface without changing the arrangement order. The insulating film 12 has a shape along the outer shape of the arrangement of the electric wires 11 so as to cover the entire five bent electric wires 11. The bending angle of the electric wire 11 at the bent portion 21 is bent at, for example, 45 degrees or more and 90 degrees or less according to the wiring location.

  In the flat cable 10 of this example, the bending angle at the bent portion 21 is 90 degrees. Thereby, the flat cable 10 does not change the arrangement order of the five electric wires 11, and the center line C <b> 1 in the parallel direction on the one end 11 </ b> A side of the five electric wires 11 and the other end 11 </ b> B side of the five electric wires 11. Are perpendicular to the center line C2 in the parallel direction.

Next, the manufacturing apparatus 100 that manufactures the flat cable 10 will be described.
As illustrated in FIG. 3, the manufacturing apparatus 100 includes an electric wire supply unit 101, a wire-shaping unit 102, and a processing unit 103.

  The electric wire supply unit 101 has a plurality (five in this example) of supply reels 111 (an example of a winding frame), and the electric wires 11 are fed from the respective supply reels 111 to the wire-shaping unit 102. Further, the electric wire supply unit 101 has a dancer roller 112 for each supply reel 111. Each dancer roller 112 adjusts the tension of the electric wire 11 fed from each supply reel 111 to the straightening section 102.

  As shown in FIG. 4, the straightening unit 102 includes a straightening roller 121 and a pressing roller 122 arranged along the straightening roller 121. The straightening roller 121 has a plurality of grooves 121a arranged at equal intervals in the axial direction, and the electric wire 11 is passed through these grooves 121a. In this example, the five electric wires 11 drawn out from the electric wire supply unit 101 are aligned in a state where they are arranged in parallel at equal intervals by the alignment unit 102. At this time, the presser roller 122 prevents the electric wire 11 from derailing from the groove portion 121 a of the wire-straightening roller 121.

  The processing part 103 (refer FIG. 3) bends the electric wire 11, and affixes the insulating film 12 from the upper and lower sides of the arrangement surface of the electric wire 11 after that.

  As shown in FIG. 5, the processing unit 103 includes a gripping part 131, an alignment block (an example of an alignment part) 141, and a plurality (five in this example) of bending formation parts 152 a and 152 b provided for each electric wire 11. , 152c, 152d, and 152e (hereinafter collectively referred to as a bending forming portion 152) and a holding block (an example of a holding portion) 161. In the processing unit 103, an alignment block 141, a bend forming unit 152, a holding block 161, and a gripping unit 131 are sequentially arranged from the side closer to the supply reel 111 to the side farther from the supply reel 111.

  As shown in FIG. 6, the grip portion 131 includes a pair of upper and lower grip members 132. A plurality (five in this example) of gripping grooves 133 are formed in these gripping members 132 at equal intervals. The electric wires 11 are accommodated in these gripping grooves 133. The gripping part 131 sandwiches the electric wires 11 from above and below the arrangement surface by the gripping member 132. As a result, the electric wire 11 is held by the holding portion 131 in a state of being accommodated in the holding groove 133 of each holding member 132 and arranged at equal intervals. The grip 131 is movable in a horizontal plane that is the arrangement surface of the electric wires 11.

  As shown in FIG. 7, the alignment block 141 has a plurality of (five in this example) groove portions 142 arranged in parallel. In these groove portions 142, the electric wires 11 are accommodated in a state where only the upper half is exposed. The alignment block 141 is made of metal, and at least the groove 142 is preferably coated with a fluororesin in order to reduce friction with the electric wire 11 to be accommodated.

  The bending portion 152 is disposed between the grip portion 131 and the alignment block 141 (see FIG. 5). As shown in FIGS. 8 and 9, the bend forming part 152 includes a pedestal 153 and a roller 154 supported by the pedestal 153. The pedestal 153 is fixed to the upper end of the support bar 155 arranged vertically. The support bar 155 is rotatable about a central axis in the vertical direction.

  The roller 154 includes a body 156 and flanges 157 provided at both ends of the body 156. The roller 154 is supported by the pedestal 153 in a state where its central axis is disposed in the horizontal direction, and is rotatable about the central axis. An electric wire 11 is disposed on the roller 154 from above. The electric wire 11 is disposed on the body portion 156 of the roller 154, so that both side portions thereof are held by the flange portion 157. Thereby, the electric wire 11 will be in the state which contacted the bending formation part 152. FIG.

  The bend forming portions 152b to 152e excluding the bend forming portion 152a arranged on at least one side of these bend forming portions 152a to 152e move along a direction orthogonal to the arrangement direction of the groove portions 142 of the alignment block 141. It is possible.

  As shown in FIG. 5, the holding block 161 is disposed between the grip portion 131 and the bend forming portion 152. Similar to the alignment block 141, the holding block 161 has a plurality of (in this example, five) groove portions 162 arranged in parallel (see FIG. 7). In these groove parts 162, the electric wires 11 are accommodated with only the upper half exposed.

  The holding block 161 is made of metal like the alignment block 141, and at least the groove 162 is preferably coated with a fluororesin in order to reduce friction with the electric wire 11 to be accommodated. . In addition, the holding block 161 is movable together with the grip 131 in a horizontal plane that is the arrangement surface of the electric wires 11.

  Next, the case where the flat cable 10 is manufactured using the manufacturing apparatus 100 described above will be described for each process with reference to each drawing.

(Wire placement process)
In a state where the feeding of the electric wire 11 by the electric wire supply unit 101 is stopped, as shown in FIG. 10, the five electric wires 11 arranged in parallel are sandwiched from above and below by the holding member 132 of the holding unit 131, and the electric wire 11 is held by the holding unit 131. Grip with Further, the portion closer to the supply reel 111 than the portion gripped by the grip portion 131 of the electric wire 11 is accommodated in the groove portion 142 of the alignment block 141 and the groove portion 162 of the holding block 161, and the electric wire 11 is held by the bending portion 152. .

(Wire bending process)
As shown in FIG. 11A, the gripping portion 131 and the holding block 161 are rotated with respect to the alignment block 141 within the arrangement plane of the electric wires 11, and one side side (in the direction of arrow A in FIG. 11A). ). Thereby, each electric wire 11 is bent to the one side part side in the contact part with each bending formation part 152a-152e. Further, the bend forming portions 152b to 152e excluding the bend forming portion 152a are moved along a direction orthogonal to the arrangement direction of the groove portions 142 of the alignment block 141. The amount of movement of each of the bending forming portions 152b to 152e is increased toward the side opposite to the bending side of the electric wire 11. Thereby, the space | interval of each electric wire 11 bent is maintained.

  When the electric wire 11 is bent by moving the grip portion 131, the pedestal 153 rotates around the vertical axis in the bending forming portion 152, and the roller 154 moves along the horizontal axis along with the movement of the electric wire 11. Rotate around. As a result, the portion of the electric wire 11 to be bent contacts the bend forming portion 152 smoothly, and the force acting on the electric wire 11 is suppressed as much as possible.

  Further, when the electric wire 11 is bent by moving the grip portion 131, each electric wire 11 is pulled along with the movement of the grip portion 131. At this time, each dancer roller 112 individually adjusts the tension of each electric wire 11 to obtain a uniform tension. Thereby, the five electric wires 11 are bent easily and easily.

  As shown in FIG. 11B, the gripping portion 131 is further rotated with respect to the alignment block 141 in the arrangement plane of the electric wires 11, and is directed to one side (in the direction of arrow A in FIG. 11B). The bend forming portions 152b to 152e excluding the bend forming portion 152a are moved along the direction orthogonal to the arrangement direction of the groove portions 142 of the alignment block 141. Thereby, each electric wire 11 is further bent at a contact portion with each of the bending forming portions 152a to 152e.

  As shown in FIG. 11 (c), the grip portion 131 is further moved toward one side (in the direction of arrow A in FIG. 11 (c)) while rotating within the arrangement plane of the wires 11, and the wire 11 Is bent at a predetermined angle (90 degrees in this example), the movement of the grip portion 131 and each of the bending forming portions 152b to 152e is stopped.

  In addition, the bending angle of the electric wire 11 can be easily adjusted in the range of 45 degrees or more and 90 degrees or less by changing the movement position of the holding part 131, for example. In addition, each of the bent forming portions 152b to 152e may be arranged at a position shifted from the beginning in a direction orthogonal to the arrangement direction of the groove portions 142 of the alignment block 141. Also in this case, it is possible to bend the wire 11 while maintaining the distance between the wires 11.

(Insulating film application process)
As shown in FIG. 12, the insulating film 12 is supplied to the upper side of the arrangement surface of the electric wires 11, the heater plate (not shown) is lowered from the upper side, and the insulating film 12 is pressed against the electric wires 11 and heated. In this way, the insulating film 12 is adhered and pasted to the electric wires 11 on the upper side of the arrangement surface. After affixing the insulating film 12 to the upper side of the arrangement surface with respect to the electric wires 11, the alignment block 141, the bent forming portion 152, and the holding block 161 are lowered and moved away from the arrangement surface of the electric wires 11. In this state, the insulating film 12 is supplied to the lower side of the arrangement surface of the electric wires 11, the heater plate (not shown) is raised from the lower side, and the insulating film 12 is pressed against the electric wires 11 and heated. Thereby, the insulating film 12 is adhered and attached to the lower side of the arrangement surface with respect to the electric wires 11.

(Cutting process)
While releasing the grip of the one end side of the electric wire 11 by the holding portion 131, the portion of the electric wire 11 exposed from the insulating film 12 is cut and the flat cable 10 is taken out from the processing portion 103.

  As shown in FIG. 12, the excess part (part shown with the oblique line in FIG. 12) of the insulating film 12 of the flat cable 10 taken out from the process part 103 is cut and removed. Thereby, the flat cable 10 (refer FIG. 1) which has the one bending part 21 is obtained.

  According to the manufacturing method of the flat cable 10 described above, one end side of the five electric wires 11 arranged in parallel is held by the holding portion 131, and the other end side from the portion where the electric wire 11 is held is the groove portion of the alignment block 141. The gripping part 131 is moved in the arrangement plane of the electric wires 11 with respect to the alignment block 141 in a state where the electric wires 11 are held in contact with the respective bending forming parts 152a to 152e. Thereby, the state bent in the parallel direction can be easily obtained without damaging the plurality of electric wires 11. And the small flat cable 10 can be manufactured in the width direction and thickness direction by affixing the insulating film 12 from the upper and lower sides of an arrangement surface in the state which bent the several electric wire 11. FIG.

  Further, each of the bending forming portions 152b to 152e is moved along a direction orthogonal to the arrangement direction of the plurality of groove portions 142 of the alignment block 141 as the grip portion 131 is moved. Thereby, when bending each electric wire 11, the space | interval of each electric wire 11 can be maintained. Thereby, the flat cable 10 without problems, such as each electric wire 11 adjoining or meandering, can be manufactured. The bend forming portion 152a that is the inner side of the bending of each electric wire 11 may also be moved along the direction orthogonal to the arrangement direction of the plurality of groove portions 142 of the alignment block 141 as the grip portion 131 moves.

  Moreover, the electric wire 11 is accommodated in the groove portion 162 of the holding block 161 in the electric wire arranging step, and the holding block 161 is moved together with the grip portion 131 in the electric wire bending step. Thereby, the alignment state of the one end side of the electric wire 11 can be maintained reliably.

  Conventionally, when the wiring path of the flat cable is bent, the flat cable has to be bent and attached by performing processing such as bending the flat cable. However, according to the flat cable 10 according to the present embodiment, since the bent portion 21 is formed in advance, wiring can be performed without performing processing for bending even on a complicated wiring path having a bent portion. Work can be done.

  Moreover, according to the flat cable 10 which concerns on this embodiment, since the insulating film 12 is bonded together from the upper side and lower side of the arrangement surface of the electric wire 11, the electric wire 11 can be reliably protected by the insulating film 12, Damage to the wire 11 during wiring can be suppressed. The insulating film 12 may be only one of the upper side and the lower side of the arrangement surface of the electric wires 11.

  In the insulating film sticking step, a long insulating film 12 is supplied along the traveling direction of the electric wire 11, and the insulating film 12 and the electric wire 11 are sandwiched and heated by the heating roller while feeding the insulating film 12 to the heating roller. And paste it.

(Modification)
Next, a modification of the method for manufacturing the flat cable 10 will be described.
In this modified example, as shown in FIG. 13, the electric wire 11 is formed using bent forming portions 172 a, 172 b, 172 c, 172 d, and 172 e (hereinafter collectively referred to as the bent forming portion 172) made of a cylindrical pin. Bend. The bending forming portions 172 are formed in a circular shape in plan view, and each protrudes upward.

  When the electric wire 11 is bent using the bending forming portion 172, the bending forming portions 172a to 172e are arranged inside the bending direction of the electric wires 11, respectively, in the electric wire arranging step.

  In this state, as shown in FIG. 14A, the electric wire 11 is bent toward one side at the contact points with the bending portions 172a to 172e while rotating the grip 131. Further, the bending forming portions 172b to 172e are moved along the direction orthogonal to the arrangement direction of the groove portions 142 of the alignment block 141, and the interval between the electric wires 11 to be bent is maintained.

In this example, when the electric wire 11 is bent, the bending forming portion 172 rotates around the vertical axis. As a result, the portion of the electric wire 11 to be bent contacts the bend forming portion 152 smoothly, and the force acting on the electric wire 11 is suppressed as much as possible.
Since the bent forming portion 172 is a pin, the bent forming portion 172 can be inserted between the electric wires 11 even when the distance between the electric wires 11 is narrow. The roller method and the pin method are preferably used according to the pitch of the electric wires 11.

  Further, as shown in FIGS. 14B and 14C, the bending portions 172b to 172e are moved along the direction orthogonal to the arrangement direction of the groove portions 142 of the alignment block 141 while further rotating the grip portion 131. When the wire 11 is moved and bent at a predetermined angle (90 degrees in this example), the movement of the grip portion 131 and the bending forming portions 172b to 172e is stopped.

  Also in the case of the manufacturing method of the flat cable 10 according to this modification, the grip 131 is placed in the arrangement plane of the wires 11 with respect to the alignment block 141 in a state where the respective wires 11 are brought into contact with the bent portions 172a to 172e. It is possible to easily obtain a state where the plurality of electric wires 11 are bent in the parallel direction without being damaged. And the small flat cable 10 can be manufactured in the width direction and thickness direction by affixing the insulating film 12 from the upper and lower sides of an arrangement surface in the state which bent the several electric wire 11. FIG.

  In this modification, after the electric wire bending step, a bent forming portion 172 made of a pin protrudes inside the bending direction of the electric wire 11. For this reason, in the insulating film sticking process after the electric wire 11 is bent, the bending portion 172 comes into contact with the insulating film 12 when the insulating film 12 is attached to the upper side of the arrangement surface of the electric wires 11.

  Therefore, in the case of this modification, in the insulating film sticking step, as shown in FIG. 15, the L-shaped insulating film 12 in a plan view is stuck on a portion excluding the bent portion of the electric wires 11 on the upper side of the arrangement surface of the electric wires 11. Attach and fix the electric wire 11. Next, the alignment block 141, the bent forming portion 172, and the holding block 161 are moved down and away from the arrangement surface of the wires 11. Thereafter, the insulating film 12 is adhered and attached to the lower side of the arrangement surface of the electric wires 11, and further, the insulating film 12 is attached to the bent portion of the electric wires 11 exposed on the upper side of the arrangement surface of the electric wires 11.

  If the bent state of the electric wire 11 is maintained even when the bent portion 172 made of pins is lowered, the insulating film 12 is pasted on the entire upper side of the arrangement surface of the electric wires 11 after the bent portion 172 is lowered. After that, the alignment block 141 and the holding block 161 are lowered, and the insulating film 12 may be adhered and attached to the lower side of the arrangement surface of the electric wires 11.

  While the invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. In addition, the number, position, shape, and the like of the constituent members described above are not limited to the above-described embodiments, and can be changed to a number, position, shape, and the like that are suitable for carrying out the present invention.

  For example, a round wire conductor having a diameter of 0.8 mm or less that is not covered with an insulator may be used as the electric wire 11. Use of a round wire conductor having a diameter of 0.3 mm or less is preferable in that the pitch of each wire is reduced and high-density wiring is possible. Moreover, a flat cable can be manufactured cheaply by using the round wire conductor which is not coat | covered with the insulator.

  Moreover, as the electric wire 11, as shown in FIG. 16, you may use the thin diameter insulated electric wire 11 'containing the center conductor 11a and the insulating coating | cover 11b which covers the circumference | surroundings of the center conductor 11a. When an insulated wire is used as the electric wire 11, a flat cable 10 'that can reliably prevent a short circuit between the arranged insulated wires can be provided.

  Moreover, as the electric wire 11, a small-diameter coaxial electric wire including a central conductor, an insulating coating covering the periphery of the central conductor, and an external conductor covering the periphery of the coating can be used instead of the insulated wire. The small-diameter coaxial cable may have an insulating jacket covering the periphery of the outer conductor. By using a coaxial electric wire as the electric wire 11, a flat cable 10 'having excellent shielding characteristics can be provided.

10: Flat cable 11: Electric wire 12: Insulating film 131: Holding part 141: Alignment block (an example of an alignment part)
142: Groove parts 152a, 152b, 152c, 152d, 152e: Bending part 161: Holding block (an example of a holding part)
162: Groove portions 172a, 172b, 172c, 172d, 172e: Bending portions

Claims (5)

A method for producing a flat cable in which a plurality of electric wires drawn out from a winding frame are arranged in a planar shape, and an insulating film is attached from either the upper side or the lower side of the arrangement surface,
The side closer to the winding frame of the plurality of electric wires arranged in parallel is respectively accommodated in the groove portion of the alignment portion having the plurality of groove portions arranged in parallel, and the side far from the winding frame of the electric wires arranged in parallel is held by the gripping portion. An electric wire arrangement step of arranging a plurality of bending forming portions for holding and bending each of the electric wires between the holding portion and the alignment portion;
An electric wire bending step of bending each of the electric wires at a contact point with each of the bending forming portions by moving the gripping portion within the arrangement plane of the electric wires with respect to the alignment portion;
An insulating film attaching step for attaching the insulating film from either the upper side or the lower side of the array surface to the electric wire;
Of flat cable including In the electric wire bending step, the electric wires to be bent are moved by moving each of the bent forming portions along a direction orthogonal to the arrangement direction of the plurality of groove portions in the arrangement surface as the gripping portion moves. To maintain the spacing of the
The manufacturing method of the flat cable of Claim 1. In the electric wire arrangement step, a holding portion having a plurality of groove portions capable of accommodating the electric wires is arranged between the grip portion and each of the bending forming portions, and the electric wires are accommodated in the groove portions of the holding portion,
In the electric wire bending step, the holding unit is moved in the same direction as the holding unit together with the holding unit.
The manufacturing method of the flat cable of Claim 1 or Claim 2. At least in the wire bending step, the tension of each of the plurality of wires is individually adjusted,
The manufacturing method of the flat cable as described in any one of Claims 1-3. Wherein the insulating film sticking step, after attaching the insulating film on the upper side of the array surface over said groove of said alignment portion with respect to the electric wire, away the aligning unit from the array surface of the electric wire, the paste the insulating film on the other side of the array surface of the wire,
The manufacturing method of the flat cable as described in any one of Claims 1-4.

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