JP2002093246A - Flat cable, manufacturing method for it and insulating sheet for it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat cable capable of protecting plural parallel conductors and performing insulation, protection and fixing at the same time in simple constitution, a manufacturing method for easily manufacturing the cable, and an insulating sheet for use in it. SOLUTION: In this flat cable 20, the outer surfaces of plural parallel conductors 2 are wrapped by the insulating sheet 4 including a cushion layer 14. This manufacturing method includes a wiring process for wiring plural conductors 2 in a partial area of the insulating sheet 4 including the cushion layer 14, and a binding process for folding back and superposing another area of the insulating sheet 4 on the area where the conductor 2 is wired by the wiring process, and sticking the outer surfaces of the respective conductors 2 of the superposed parts by pressure sensitive adhesive materials 13, 13 to be wrapped by the insulating sheet 4 and binding the same. In the insulating sheet 4, the insulating cushion layer 14 is stacked to be sandwiched between two pressure sensitive adhesive layers 13, 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat cable in which the outer surfaces of a plurality of parallel electric wires are covered with an insulating sheet including a cushion layer, a method for manufacturing the flat cable, and an insulating sheet used therefor.

[0002]

2. Description of the Related Art For wiring of vehicles, wire harnesses using flat cables have been increasingly used to reduce weight and space.

This flat cable is generally manufactured by extruding a plurality of parallel conductors and a molten insulating resin from a die using an extruder, and the outer surfaces of the plurality of parallel conductors are covered with the insulating resin. And are insulated from each other.

Here, a method of manufacturing the shield flat cable 70 shown in FIG. 14 will be specifically described with reference to FIG.

A shielded flat cable 70 is shown in FIG.
As shown in the figure, two core wires 7 covered with an insulator 73
1 and the drain wire 72 are formed with a shield tape 74, and the entire outer surface thereof is covered with a sheath 75.

In manufacturing this shielded flat cable 70, first, as shown in FIG.
1 and the drain line 72 (core line manufacturing step S8).
1, drain line manufacturing process S82). The conductor of the core wire 71 and the drain wire 72 may be a single core wire or a stranded wire.

Next, two core lines 71 and a drain line 7
2 are formed in a parallel state and covered with a shield tape 74 for forming (tape forming step S83).

Next, using an extruder, the shield tape 7
The two core wires 71 and the drain wires 72 formed in Step 4 and the melted insulating resin are extruded from the dice, and the entire outer surfaces of the two core wires 71 and the drain wires 72 covered with the shield tape 74 are sheathed. The sheath 75 is formed (sheath extrusion step S84), and the sheath 75 is cooled and hardened (cooling step S85). The electric wire thus formed is wound around a drum or the like (winding step S86). This completes the wire manufacturing process.

Next, the process proceeds to a harness manufacturing process. First, the sheath 75 is peeled off at the end of the electric wire to expose the conductor (sheath stripping step S91), and the terminal is fixed to the end of each core wire 71 by crimping or the like (terminal attaching step S92). And
The electric wires are wired on the drawing board in accordance with the wiring pattern (wiring step S93), and the electric wires are appropriately bound (binding step S94), whereby a harness having a desired shape is completed.

[0010]

However, when the above harness is used for wiring of a vehicle body or the like, it is necessary to wrap the outer side of the sheath with a protective material such as a protector or a corrugated tube in order to surely protect the harness. There was a problem in that the structure became complicated.

Further, it is necessary to attach the harness to a vehicle body or the like by using a separate clamp or the like, and the attaching operation is complicated, and there is a problem in workability.

Furthermore, a method of manufacturing a flat cable in which a plurality of parallel conductors and an insulating resin melted by using an extruder are extruded from a die, and each conductor is covered with the insulating resin and insulated from each other, However, there is a problem in that it is not suitable for manufacturing a rarely used product that is used in various forms for special purposes.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and a flat cable capable of simultaneously protecting and insulating a plurality of parallel conductors with a simple structure, and an easy production of the flat cable. It is an object of the present invention to provide a production method capable of producing the same and an insulating sheet used therefor.

Another object of the present invention is to provide a flat cable capable of simultaneously protecting a plurality of parallel electric wires and fixing it to a vehicle body or the like with a simple structure, and an insulating sheet used for the flat cable. It is in.

[0015]

The flat cable according to the present invention has a structure in which conductors are insulated from each other by covering the outer surfaces of a plurality of parallel conductors with an insulating sheet including a cushion layer.

According to this structure, each conductor of the flat cable is protected by the cushion layer of the insulating sheet.
The conductors are insulated from each other by the cushion layer. In addition, since the cushion layer of the insulating sheet has the function of protecting and insulating a plurality of parallel conductors, the conductor is covered with an insulator and the outside is wrapped with a protective material, as in a flat cable of conventional configuration. , A simple configuration can be achieved.

[0017] The above flat cable manufacturing method comprises the steps of: laying a plurality of conductors in a part of an insulating sheet including a cushion layer; Folding and overlapping the other region of the insulating sheet, and bonding both regions of the insulating sheet together with an adhesive so as to cover the outer surface of each conductor at the overlapping portion with the insulating sheet. It consists of a configuration including:

According to this manufacturing method, a simple wiring step and a binding step in which the outer surfaces of parallel conductors are sandwiched between folded insulating sheets and bonded with an adhesive material can be performed without using a large-scale manufacturing apparatus. Thus, a flat cable having a desired form can be easily manufactured.

In another flat cable of the present invention, the conductors are insulated from each other by covering the outer surfaces of a plurality of parallel conductors with an insulating sheet including a cushion layer and a conductive layer. Either one is connected to the conductive layer.

According to this configuration, each conductor of the flat cable is protected by the cushion layer of the insulating sheet.
The conductors are insulated from each other by the cushion layer. Then, the grounding of the conductor connected to the conductive layer of the insulating sheet provides a shielding effect.

Further, since the cushion layer of the insulating sheet has a function of protecting and insulating a plurality of conductors arranged in parallel and providing a conductive layer on the insulating sheet, the conductor is made of an insulating material like a shielded flat cable having a conventional configuration. The conductor of the core electric wire and the drain wire covered with the above can be formed with a shield tape, the periphery thereof can be covered with a sheath, and the outside thereof can be made simpler than a structure in which the outside is covered with a protective material.

In this flat cable manufacturing method, a wiring step of laying a plurality of conductors in a part of an insulating sheet including a cushion layer and a conductive layer, and exposing a part of the conductive layer in the insulating sheet. Connecting the exposed conductive layer to any one of the conductors, and folding and superimposing another area of the insulating sheet on the area where the conductor is wired in the wiring step, and each conductor in the overlapped portion. And bonding the two regions of the insulating sheet together with an adhesive so as to cover the outer surface of the insulating sheet with the insulating sheet.

According to this manufacturing method, a part of the conductive layer in the insulating sheet is exposed and connected to one of the conductors.
A simple wiring and bundling process, in which the outer surfaces of parallel conductors are sandwiched between folded insulating sheets and bonded together with an adhesive, makes it possible to easily form a shielded flat cable in the desired form without using large-scale manufacturing equipment. Can be manufactured.

The insulating sheet of the present invention has a structure in which an insulating cushion layer is laminated so as to be sandwiched between two adhesive layers. Another insulating sheet of the present invention has a configuration in which an insulating cushion layer and a conductive layer are laminated so as to be sandwiched between two adhesive layers.

With the use of these insulating sheets, the outer surfaces of the parallel conductors can be removed when a flat cable is manufactured.
A flat cable of a desired form can be easily manufactured simply by sandwiching the folded insulating sheet and bonding with an adhesive.

In these insulating sheets, if a release paper is applied to at least one surface of the adhesive layer, a flat cable is manufactured using the insulating sheet, and then the release paper in the insulating sheet is removed. By peeling off the adhesive layer and exposing the adhesive layer, the flat cable can be easily fixed to a vehicle body or the like without using a clamp or the like using the adhesive layer.

Another flat cable according to the present invention is:
A plurality of electric wires parallel to a part of the insulating sheet including the cushion layer are arranged, and another area of the insulating sheet is folded and overlapped on the area, and an outer surface of each electric wire in the overlapping part is insulated. It is configured such that it is bonded and bound by an adhesive in a state of being wrapped by a sheet, and at least one surface of the outer surface of the bundle is an adhesive layer.

According to this structure, the electric wires of the flat cable can be protected by the cushion layer, and the flat cable can be easily fixed to the vehicle body or the like by using the adhesive layer on the outer surface.

Further, another flat cable according to the present invention comprises:
A plurality of electric wires parallel to a part of the insulating sheet including the cushion layer and the conductive layer are arranged, and another area of the insulating sheet is folded back and overlapped on the area, and the outside of each of the electric wires at the overlapping part is provided. The surface is covered with an adhesive in a state of being wrapped by an insulating sheet and bound together, and a part of the exposed conductive layer of the insulating sheet is connected to any of the electric wires, and It has a configuration in which at least one of the outer surfaces is an adhesive layer.

According to this structure, the electric wire of the flat cable is protected by the cushion layer, and the electric wire connected to the conductive layer is grounded to provide a shielding effect. Further, the flat cable can be easily fixed to the vehicle body or the like by the adhesive layer on the outer surface.

In these flat cables, when the electric wires are made of only conductors and the conductors are insulated from each other by covering the outer surface of each conductor with an insulating sheet, the cushion layer of the insulating sheet becomes In order to combine the function of protecting and insulating multiple conductors in parallel, a simpler structure is required compared to a structure in which a conductor is covered with an insulator and the outside is wrapped with a protective material as in a flat cable of the conventional configuration. It is possible to reduce the weight of the flat cable.

[0032]

Embodiments of the present invention will be specifically described below with reference to the drawings.

(First Embodiment) FIG. 1 shows a first embodiment of the present invention.
1 shows a configuration example of a flat cable 10 according to the embodiment.

In the flat cable 10, as shown in FIG. 1, the outer surfaces of a plurality of parallel conductors 2 are covered with insulating sheets 3 and 4 including cushion layers 11 and 14, so that the conductors 2 are mutually connected. Insulated.

Here, the cushion layers 11 and 14 are made of, for example, a foamed resin having a thickness of about 2 mm to 5 mm, so that the weight of the flat cable 10 can be reduced. As the foamed resin, specifically, a material such as urethane or polyethylene can be used. In addition, the cushion layer 11,
For 14, another insulating material having cushioning properties may be used, and for example, a rubber-like elastic body may be used. Specifically, butyl rubber or the like is suitable for it because it has both cushioning properties and adhesive properties.

The manufacturing method of the flat cable 10 is as follows.
The five parallel conductors 2 are connected to the cushion layer 11 shown in FIG.
The insulating sheet 3 composed of the adhesive layer 12, the adhesive layer 13, the cushion layer 14, the adhesive layer 15, and the release paper 1 shown in FIG.
6 are sandwiched between the insulating sheets 4 laminated in this order, and the adhesive layers 12 and 13 are attached to each other.
Are covered with insulating sheets 3 and 4 including cushion layers 11 and 14 so that the conductors 2 are insulated from each other.

The insulating sheet 3 and the insulating sheet 4 have a form in which a release paper is first adhered to the outer surface of each of the adhesive layers 12 and 13. 3 is used.

According to the above configuration, the flat cable 10
Are protected by the cushion layers 11 and 14, and the conductors 2 are insulated from each other by the cushion layers 11 and 14. Insulating sheets 3, 4
Since the cushion layers 11 and 14 have the functions of protecting and insulating a plurality of conductors 2 arranged in parallel with each other, compared with a structure in which a conductor is covered with an insulator and the outside thereof is wrapped with a protective material as in a flat cable having a conventional configuration. , And a simple configuration. Further, the release paper 16 of the insulating sheet 4 is peeled off to expose the adhesive layer 15, and the flat cable 10 can be easily fixed to the vehicle body or the like without using a clamp or the like using the adhesive layer 15.

Further, according to the above-described manufacturing method, a simple process of simply sandwiching the outer surfaces of the parallel conductors with two insulating sheets and bonding them with an adhesive material can be used without using a large-scale manufacturing apparatus. A flat cable of a desired form can be easily manufactured.

(Second Embodiment) FIG. 4 shows a second embodiment of the present invention.
1 shows a configuration example of a flat cable 20 according to the embodiment.

In this flat cable 20, a plurality of conductors 2 are arranged in parallel in a part of the insulating sheet 4 including the cushion layer 14, and another area of the insulating sheet 4 is folded back and overlapped in that area. The outer surfaces of the conductors 2 in the overlapping portions are covered with the insulating sheet 4 so that the conductors 2 are bonded and bound by the adhesives 13 in a state where the conductors 2 are insulated from each other. The outer surface of the binding body has an adhesive layer 1 on which a release paper 16 is adhered.
It is 5.

FIGS. 5 to 7 show this flat cable 20.
The manufacturing method of is shown. However, FIG. 4 shows an example in which there are five parallel conductors 2. However, in order to simplify the description, an example in which there are three parallel conductors 2 will be described.

First, as shown in FIG. 5, the insulating sheet 4 shown in FIG. 3 is spread and arranged between two connector housings 21 and 22 opposed to each other on the drawing board 23.

Next, as shown in FIG. 6, terminals crimped to both ends of each conductor 2 are inserted into and connected to each connector housing 21, 22, and a plurality of conductors 2 (Here, three wires) are wired (wiring process).

Next, as shown in FIG. 7, another area of the insulating sheet 4 is folded back and overlapped with the area where the conductor 2 has been wired in the wiring step, and the outer surface of each conductor 2 at the overlapped portion To be covered with the insulating sheet 4.
And bind them in a state where the conductors 2 are insulated from each other (bundling step). Thereby, the flat cable 20 shown in FIG. 4 is completed.

FIG. 8 shows a cross section taken along the line P--P in FIG. 4. Both ends of the flat cable 20 are hot-pressed as shown by an arrow F to compress and thermally harden the cushion layer 14. A method for reinforcing both ends of the cable 20 is shown. It is not always necessary to reinforce both ends.

According to the above configuration, the flat cable 20
The conductors 2 are protected by the cushion layer 14 of the insulating sheet 4 and the conductors 2 are insulated from each other by the cushion layer 14.

In order to protect and protect the plurality of conductors 2 in parallel with the cushion layer 14 of the insulating sheet 4, the conductors are covered with an insulator like a conventional flat cable, and the outside is protected by a protective material. The structure can be made simpler than the structure wrapped in a.

Further, the release paper 16 of the insulating sheet 4 is peeled off to expose the adhesive layer 15, and the flat cable 20 can be easily fixed to the vehicle body or the like without using a clamp or the like using the adhesive layer 15. it can.

Further, according to the above-described manufacturing method, the simple wiring step and the binding step in which the outer surfaces of the parallel conductors 2 are sandwiched between the folded insulating sheets 4 and bonded with the adhesives 13, 13 are performed. The flat cable 20 of a desired form can be easily manufactured without using a large-scale manufacturing apparatus.

As a modification, as shown in FIG. 9, a flat cable 20 'which is the electric wire 1 in which the conductor 2 is covered with the insulator 6 may be used.

According to the flat cable 20 ', since the conductor 2 is covered with the insulator 6, the cushion layer 14 does not play the role of insulating the conductors 2 from each other as in the flat cable 20 described above. As in the case of the flat cable 20, it is possible to obtain an effect that the flat cable 20 can be easily fixed to a predetermined portion by using the adhesive layer 15 on the surface while the electric wire 1 is effectively kept by the cushion layer 14.

(Third Embodiment) FIG. 10 shows a configuration example of a shielded flat cable 30 according to a third embodiment of the present invention.

In this shielded flat cable 30, a plurality of conductors 2 parallel to a part of the insulating sheet 5 including the cushion layer 14 and the conductive layer 17 for shielding are arranged as core wires, and the insulating sheet 5 Are folded and superimposed. The outer surfaces of the conductors 2 in the overlapping portion are covered with the insulating sheet 5 so that the conductors 2 are bonded and bound by the adhesives 13 in a state where the conductors 2 are insulated from each other. 5, a predetermined range of the adhesive 13 and the cushion layer 14 at one end side is deleted, and the conductor 2 'as a drain line is connected to the portion 17a where the conductive layer 17 is exposed. The outer surface of the binding body is an adhesive layer 15 on which a release paper 16 is adhered.

FIG. 12 shows a method of manufacturing the shielded flat cable 30.

First, a conductor 2 serving as a core wire and a conductor 2 'serving as a drain wire are manufactured in a wire manufacturing process (core wire manufacturing process S1, drain wire manufacturing process S2). The conductors 2 and 2 ′ of the core wire and the drain wire may be a single core wire or a stranded wire.

Next, the process proceeds to the harness manufacturing process.
The harness is manufactured through the same steps as those described with reference to FIG.

That is, terminals are crimped to both ends of each conductor 2 (terminal attaching step S3). In addition, the insulating sheet 5 shown in FIG. 11 is extended and arranged between two connector housings arranged opposite to each other on the drawing board (a connector housing and an insulating sheet setting step S4). Here, this insulating sheet 5
The adhesive layer 13, the cushion layer 14, the conductive layer 17, the adhesive layer 15, and the release paper 16 are laminated in this order. still,
The insulating sheet 5 has a form in which a release paper is first adhered to the outer surface of the adhesive layer 13, and is used in a state shown in FIG.

Next, terminals crimped to both ends of each conductor 2 are inserted into each connector housing and connected, and the insulating sheet 5
Are wired in a part of the area (wiring step S5).

Next, a part of the conductive layer 17 on the insulating sheet 5 is exposed, and the exposed conductive layer 17a is connected to the conductor 2 '.
The other region of the insulating sheet 5 is folded back and overlapped with the region where 2 ′ is wired, and the conductors 2 and 2 ′ in the overlapped portion are overlapped.
Adhesive material 13 so that the outer surface of
The conductors 2 and 2 'are bonded together in a state where they are insulated from each other by bonding at 13 (binding step S6). As a result, FIG.
Is completed.

According to the above configuration, the flat cable 30
Are protected by the cushion layer 14 of the insulating sheet 5, and the conductors 2 are insulated from each other by the cushion layer 14. Then, the grounding of the conductor 2 ′, which is the drain line connected to the conductive layer 17, produces a shielding effect.

Since the cushion layer 14 of the insulating sheet 5 has the function of protecting and insulating a plurality of conductors 2 arranged in parallel, the core wire and the drain are covered with an insulator as in the conventional shielded flat cable. A simpler structure can be achieved as compared with a structure in which a wire conductor is formed with a shield tape, the periphery thereof is covered with a sheath, and the outside thereof is wrapped with a protective material.

Further, the release paper 16 of the insulating sheet 5 is peeled off to expose the adhesive layer 15, and the flat cable 30 can be easily fixed to the vehicle body or the like without using a clamp or the like using the adhesive layer 15. it can.

Further, according to the above-described manufacturing method, the conductor 17 is exposed by exposing a portion 17a of the conductive layer 17 on the insulating sheet 5 and connecting the conductors 2 'as drain lines. Adhesive layers 13, 13 sandwiched between sheets 5
With the simple wiring step and the bundling step of simply bonding together, a shielded flat cable 30 having a desired form can be easily manufactured without using a large-scale manufacturing apparatus.

As a modification, as shown in FIG.
The above-described conductor 2 may be in the form of a flat cable 30 ′ which is the electric wire 1 covered with the insulator 6.

According to the flat cable 30 ′, since the conductor 2 is covered with the insulator 6, the cushion layer 14 does not play the role of insulating the conductors 2 from each other as in the flat cable 30 described above. As in the case of the flat cable 30, while the electric wire 1 is effectively kept by the cushion layer 14, the effect that the flat cable 30 can be easily fixed to a predetermined portion by using the adhesive layer 15 on the surface can be obtained.

As described above, the flat cable of the present invention, the method of manufacturing the flat cable, and the insulating sheet used for them are not limited to the specific configuration of each of the above-described embodiments. Needless to say, the configuration may be deleted.

[0068]

As described above, according to the flat cable of the present invention, the conductors are insulated from each other by covering the outer surfaces of the plurality of parallel conductors with the insulating sheet including the cushion layer. Therefore, the conductor of the flat cable can be protected by the cushion layer of the insulating sheet, and the conductor can be insulated from each other by the cushion layer. In addition, since the cushion layer of the insulating sheet has the function of protecting and insulating a plurality of parallel conductors, the conductor is covered with an insulator and the outside is wrapped with a protective material, as in a flat cable of conventional configuration. , And a simple configuration.

The method for manufacturing a flat cable according to the present invention comprises:
The simple wiring and bundling steps of simply sandwiching the outer surfaces of the parallel conductors with the folded insulating sheet and bonding them together with an adhesive material make it possible to easily create a flat cable of the desired form without using large-scale manufacturing equipment. Can be manufactured.

In another flat cable according to the present invention, the conductors are insulated from each other by covering the outer surfaces of a plurality of parallel conductors with an insulating sheet including a cushion layer and a conductive layer. Since the conductor is connected to the conductive layer, the conductor of the flat cable can be protected by the cushion layer of the insulating sheet, and the conductors can be insulated from each other by the cushion layer. Then, by shielding the conductor connected to the conductive layer to ground, a shielding effect can be produced.

In this flat cable manufacturing method, a part of the conductive layer in the insulating sheet is exposed and connected to one of the conductors, and the outer surface of each parallel conductor is sandwiched between the folded insulating sheets and adhered with an adhesive. By a simple wiring process and a bundling process that are simply combined, a shielded flat cable of a desired form can be easily manufactured without using a large-scale manufacturing apparatus.

The insulating sheet of the present invention has a structure in which an insulating cushion layer is laminated so as to be sandwiched between two adhesive layers, or a structure in which an insulating cushion layer and a conductive layer are sandwiched between two adhesive layers. Because it consists of a laminated structure,
By using these insulating sheets, when manufacturing a flat cable, a flat cable of a desired form can be easily manufactured simply by sandwiching the outer surfaces of the parallel conductors with the folded insulating sheet and bonding together with an adhesive. be able to.

In these insulating sheets, if a release paper is applied to at least one surface of the adhesive layer, a flat cable is manufactured using this insulating sheet, and then the release paper in the insulating sheet is removed. By peeling and exposing the adhesive layer, the flat cable can be easily fixed to a vehicle body or the like without using a clamp or the like using the adhesive layer.

Another flat cable according to the present invention is:
A plurality of electric wires parallel to a part of the insulating sheet including the cushion layer are arranged, and another area of the insulating sheet is folded and overlapped on the area, and an outer surface of each electric wire in the overlapping part is insulated. The flat cable is protected by a cushion layer because it is bonded and bound by an adhesive in a state of being wrapped by a sheet, and at least one outer surface of the bundle is an adhesive layer. As a result, the flat cable can be easily fixed to the vehicle body or the like using the adhesive layer on the outer surface.

Further, another flat cable according to the present invention comprises:
A plurality of electric wires parallel to a part of the insulating sheet including the cushion layer and the conductive layer are arranged, and another area of the insulating sheet is folded back and overlapped on the area, and the outside of each of the electric wires at the overlapping part is provided. The surface is covered with an adhesive while being wrapped by an insulating sheet and is bound together, and a part of the exposed conductive layer of the insulating sheet is connected to one of the electric wires, and the outside of the bundle is Because it consists of a configuration where at least one side of the surface is an adhesive layer,
The electric wire of the flat cable is protected by the cushion layer, and the electric wire connected to the conductive layer is grounded to provide a shielding effect. Further, the flat cable can be easily fixed to a vehicle body or the like using the adhesive layer on the outer surface.

In these flat cables, if the electric wires are made of only conductors and the conductors are insulated from each other by covering the outer surface of each conductor with an insulating sheet, the cushion layer of the insulating sheet becomes In order to combine the function of protecting and insulating multiple conductors in parallel, a simpler structure is required compared to a structure in which a conductor is covered with an insulator and the outside is wrapped with a protective material as in a flat cable of the conventional configuration. As a result, the weight of the flat cable can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a configuration example of a flat cable according to a first embodiment of the present invention.

FIG. 2 is a sectional perspective view showing a configuration example of an insulating sheet used for the flat cable according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional perspective view showing a configuration example of an insulating sheet used for the flat cable according to the first embodiment and the second embodiment of the present invention. It is a perspective view which shows the attaching process in the manufacturing method of the shield wire harness of this invention.

FIG. 4 is a sectional view illustrating a configuration example of a flat cable according to a second embodiment of the present invention.

FIG. 5 is a perspective view showing a process of setting a connector housing and an insulating sheet in a process of manufacturing a flat cable according to a second embodiment of the present invention.

FIG. 6 is a perspective view showing a wiring step in a manufacturing process of the flat cable according to the second embodiment of the present invention.

FIG. 7 is a perspective view showing a binding step in a flat cable manufacturing step according to the second embodiment of the present invention.

FIG. 8 is a PP of FIG. 4 showing an end reinforcing step in the manufacturing process of the flat cable according to the second embodiment of the present invention;
It is sectional drawing which shows a cross section.

FIG. 9 is a sectional view showing a modification of the flat cable according to the second embodiment of the present invention.

FIG. 10 is a sectional view showing a configuration example of a shielded flat cable according to a third embodiment of the present invention.

FIG. 11 is a sectional perspective view showing a configuration example of an insulating sheet used for a shielded flat cable according to a third embodiment of the present invention.

FIG. 12 is a process diagram illustrating a process of manufacturing a shielded flat cable according to a third embodiment of the present invention.

FIG. 13 is a sectional view showing a modified example of the shielded flat cable according to the third embodiment of the present invention.

14A and 14B are diagrams illustrating a configuration example of a conventional shielded flat cable, wherein FIG. 14A is a perspective view, and FIG.
It is sectional drawing showing the -Q cross section.

FIG. 15 is a process chart showing a manufacturing process of a conventional shielded flat cable.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric wire 2,2 'conductor 3,4,5 Insulating sheet 6 Insulator 10,20,20', 30,30 'Flat cable 11,14 Cushion layer 12,13,15 Adhesive layer 16 Release paper 17 Conductive layer

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takuya Inoue 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi Harness Research Institute, Inc. (72) Inventor Katsuji Suzuura 1 Toyota-cho, Toyota-shi, Aichi Prefecture Address Toyota Motor Corporation (72) Inventor Fumio Inoue 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation F Term (Reference) 5G311 CA05 CB01 CC01 CC02 CD03 CE04 5G333 AA04 AB14 AB22 CB06 DA03 DB02 FB01 FB11 FB21 FB23

Claims (10)

[Claims] 1. A flat cable, wherein conductors are insulated from each other by covering the outer surfaces of a plurality of parallel conductors with an insulating sheet including a cushion layer. 2. The method for manufacturing a flat cable according to claim 1, wherein: a wiring step of laying a plurality of conductors in a partial area of the insulating sheet including the cushion layer; The other region of the insulating sheet is folded back and overlapped with the wired region, and both regions of the insulating sheet are adhered to each other with an adhesive so that the outer surface of each conductor in the overlapped portion is covered with the insulating sheet. And a bundling step for bundling the flat cable. 3. The conductors are insulated from each other by covering the outer surfaces of a plurality of parallel conductors with an insulating sheet including a cushion layer and a conductive layer, and any one of the conductors is applied to the conductive layer. Flat cable characterized by being connected. 4. The method of manufacturing a flat cable according to claim 3, wherein a wiring step of laying a plurality of conductors in a partial area of the insulating sheet including the cushion layer and the conductive layer. A portion of the conductive layer is exposed, the exposed conductive layer is connected to any of the conductors, and another region of the insulating sheet is folded and overlapped with the region where the conductor is wired in the wiring step. And bonding the two regions of the insulating sheet together with an adhesive so as to cover the outer surface of each conductor in the overlapped portion with the insulating sheet. . 5. An insulating sheet characterized in that an insulating cushion layer is laminated so as to be sandwiched between two adhesive layers. 6. An insulating sheet characterized in that an insulating cushion layer and a conductive layer are laminated so as to be sandwiched between two adhesive layers. 7. The insulating sheet according to claim 5, wherein a release paper is adhered to at least one surface of the adhesive layer. 8. A plurality of electric wires arranged in parallel to a part of the insulating sheet including the cushion layer, and another area of the insulating sheet is folded back and overlapped in the area, and each of the electric wires in the overlapping part is overlapped. A flat cable characterized in that the outer surface of the flat cable is bonded and bound by an adhesive while being covered with an insulating sheet, and at least one outer surface of the bundle is an adhesive layer. 9. A plurality of electric wires parallel to a part of the insulating sheet including the cushion layer and the conductive layer are arranged, and another part of the insulating sheet is folded and overlapped on the part, and the overlapping part is provided. While the outer surface of each electric wire is bonded and bound by an adhesive in a state where the outer surface of each electric wire is covered by the insulating sheet, a part of the exposed conductive layer of the insulating sheet is connected to any of the electric wires. A flat cable characterized in that at least one of the outer surfaces of the binding body is an adhesive layer. 10. The flat cable according to claim 8, wherein the electric wires are made of only conductors, and the conductors are insulated from each other by covering an outer surface of each conductor with an insulating sheet.