JPS63164112A - Flat harness of automobile or the like and manufacture thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (ff) Field of Industrial Application The present invention is applicable to flat panels used for the wiring of self-RS*, transportation equipment such as aircraft, ships, household electrical equipment (replacement products, and industrial electrical equipment). It relates to a harness and its manufacturing method, and in particular, it is capable of forming a flat harness with a good appearance without consuming a lot of effort and time, and in addition, it can be used for power lines and electric signal lines with the same or different covering materials. This invention relates to a flat harness for automobiles, etc., in which optical signal transmission lines can be freely combined and wired, and a method for manufacturing the same.

(b) Conventional technology Transport equipment such as aircraft and ships are equipped with various electrical components and control devices, and the wiring members installed between these electrical components and control devices are In order to eliminate confusion and facilitate operations such as camouflage, maintenance, inspection, and replacement, wires should be routed as common as possible, and common wiring sections should be bundled together or wired members should be glued together. , wiring members are aligned and fixed to a suitable sheet-like back member.

In this way, one or more wiring members that are unified 7) are called a harness unit, and the entire wiring made up of one or more harness units is called a harness.

In addition, a flat harness refers to a harness unit or harness in which each wiring member is wired side by side on a common plane, and is suitable for wiring in a flat space such as the inside of a car door side panel. say something

Some flat harnesses are used for wiring that does not branch or merge in the middle, such as connecting cables that connect a computer and its surroundings, and others that are used for wiring that does not branch or merge in the middle, and others that are used for wiring that does not branch or merge in the middle, such as connecting cables that connect a computer and its surroundings. Some wires are used for wiring that branches or merges along the way, such as harnesses that connect electrical components and control switches in the driver's cab.

As a method for manufacturing a flat harness, for example, as disclosed in Japanese Utility Model Publication No. 56-19291,
■ A method of arranging the synthetic resin-coated electric wires on a sheet-shaped synthetic resin back member placed in [2] of a predetermined pattern diagram, and applying heat and pressure to heat-fuse the back member and the synthetic resin-covered electric wire; ■Dissolve the contact parts of synthetic resin-coated wires arranged in a predetermined pattern with a solvent,
A method of drying and adhering ■ A method of adhering synthetic resin arranged in a predetermined pattern to the contact part of the covered wire; ■ A method of adhering in four choruses ■ A method of adhering synthetic resin arranged in a predetermined pattern A method is known in which a covered electric wire is fixed from both sides with adhesive tape.

(c) Points to be solved by the inventionHowever, these conventional flat harnesses have 5 problems! In this method, it is necessary to draw a specified wiring pattern on a flat board in advance, place each wiring member on this board, check that there are no stacks or intersections, and then fuse or bond the entire wiring or the required parts. There is.

Here, the step m is the work of placing each wiring member on a predetermined wiring pattern.

In other words, each wiring member usually has a tendency to bend, and it is necessary to correct this bend while placing the wiring member on the wiring pattern, which requires a lot of effort, effort, and time. Moreover, there are cases where the bending tendency is not sufficiently corrected and the appearance is impaired.

In particular, it is extremely difficult to position, shape, and align each wiring member in branch areas and curved wiring areas. Become Ken 2.

Furthermore, when fixing each wiring member to each other or each wiring member and the back member by fusion bonding or adhesion, there is a problem that the covering material of each wiring member and the material of the back member must be the same.

The present invention was made in consideration of the above-mentioned circumstances, and it is possible to manufacture a flat harness with a good appearance without much effort or time, and even when the covering material is the same or different. In other words, a flat harness for automobiles, etc., which allows wiring members such as power lines, electric signal lines, optical signal transmission lines, etc. to be wired in any combination regardless of the coating material, and the like. +! The purpose is to provide a method for sending information.

(d) Means for solving the problem of gaps In order to achieve the above object, the 7 runt harness for automobiles, etc. according to the present invention has a plurality of wiring members wired along a predetermined surface and Consisting of harness bands fused at appropriate intervals, each harness band includes a thermoplastic resin layer having a required number of engaging recesses for securing each wiring member, and a mold release layer laminated on the surface opposite to the joint recess side and made of a resin having a higher melting point than the thermoplastic resin layer;
This is a technical measure taken.

The present invention will be explained in detail below.

The wire used in the present invention is not particularly limited, and may include a body wire covered with synthetic resin such as polyethylene or polyvinyl chloride, a resin-coated metal wire such as aluminum wire, or iron wire, or copper wire. wire, aluminum wire,
Bare metal wires such as iron #X, optical fibers coated with metal or synthetic resin, bare fibers, etc., generally power lines,
Examples include signal transmission lines that transmit electrical signals or optical signals.
) will be.

A feature of the present invention is that a harness band that arranges and fixes a plurality of wiring members in a horizontally flat shape has 16 layers of thermoplastic material having a required number of engagement recesses into which each of the wiring members is fitted, and The plastic resin layer has a mold release layer formed on the surface opposite to the engagement recess side and made of a resin having a higher melting point than the thermoplastic WIWI.

The above-mentioned thermoplastic resin layer has required electrical properties such as electrical insulation, fire resistance such as vibration resistance, impact resistance, visibility, fire resistance such as self-extinguishing property, and flame retardancy. A layer formed of a υI fat having at least one of properties such as heat resistance, chemical resistance, weather resistance, etc. is preferable.

The resin used for coating wiring members is particularly limited as long as it is used for coating body wires, metal wires such as aluminum wires, power lines such as optical fibers, and signal transmission lines that transmit electrical signals or optical signals. Specific representative examples include polyethylene, polyvinyl chloride,
Examples include polyester, polyamide, and polyurethane.

When forming the thermoplastic resin layer using these resins, it is desirable to use the same thermoplastic resin as the Pi-receiving resin of the wiring member.

With this configuration, the coating resin and the thermoplastic resin layer of the wiring member can be fused to each other and firmly fixed.

Further, in a preferred embodiment of the present invention, the thermoplastic resin layer is formed of a hot melt resin,
A thermoplastic resin layer made of hot-melt resin is desirable because it can be fused to any covering of the wiring material and fix the wiring member in question.

The hot melt resins used in the present invention are not particularly limited, but include, for example, polyethylene and its copolymers, polyamide hot/ruto 81 resins, polyester hot melt resins, and butyral hot melt resins! f-fat, polyvinyl acetate and its copolymer-based hot-melt resin, cellulose derivative-based hot-melt resin,
Resins such as vinyl chloride-vinyl acetate copolymer, polymethyl methacrylate hot melt resin, polyvinyl ether hot melt resin, polyurethane hot melt resin, and polycarbonate Hontomel F resin rm are used. Representative examples of polyethylene and copolymers thereof include polyethylene, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate hot melt resin, ethylene-imbutyl rare acrylate copolymer hot melt resin, etc. .

In addition, the above-mentioned hot melt type ↑'' I fats include those containing various antioxidants.

When forming a thermoplastic resin layer using the above-mentioned hot-melt resin, the melting point of the hot-melt resin should be determined by considering the usage conditions of the wiring member and the temperature during use (heat generation and [boundary]). It is desirable to select and use one that has a melting point higher than that and a relatively low melting point.

A plurality of engaging recesses with open upper ends are formed on one side of the thermoplastic resin layer, but if the engaging recesses have a structure in which a wiring member can be fitted and locked, there are no particular restrictions on the shape of the engaging recesses. It is not something that will be done.

Further, in the present invention, a release layer is formed on the surface of the thermoplastic resin layer on the side opposite to the engagement recess side.

Is the release layer above thermoplastic? It is sufficient that the resin is made of a resin with a higher melting point and α than the 01 resin of the Jf resin layer, but the temperature difference between the melting point of the thermoplastic resin layer and the melting point of the release layer is set at 100% in order to keep the working temperature as low as possible. The temperature is preferably below 0.degree. C., most preferably 10 to 80.degree.

When the above-mentioned release layer is used to fuse and fix wiring members with a harness band using a hot plate, etc., the thermoplastic resin layer may be fused to the hot plate, etc., resulting in poor mold releasability. This is to prevent problems such as deterioration of the appearance due to water flowing and crumbling.

The resin constituting the release layer is not particularly limited as long as it has a higher melting point than the thermoplastic resin layer, and examples include cellophane, polycarbonate, polyethylene resin, polypropylene 134 IN, and polyethylene terre 7 tJ.
(Polyester resins such as IJIt, polyvinyl chloride resins, polyvinylidene chloride (3) resins, polyamide resins, etc. are used.

As a specific example, when the thermoplastic resin layer is made of polyvinyl chloride resin, polyethylene terephthalate, which has a higher melting point than this, may be used for the release layer.

The thermoplastic resin layer and the release layer are bonded together via a primer such as a true melt adhesive.

The above primer can be used by using an adhesive that can bond the thermoplastic resin layer and the release layer without heating, but it is preferable to use a hot melt adhesive that is easy to handle and can improve workability. is preferred. In this case, the melting point of the primer must be lower than that of the thermoplastic wax layer.

This primer is used to bond the thermoplastic rM layer and the release layer, and therefore, the coating film thickness is not particularly limited, but may be appropriately selected from the range of 5 to 50 μIo, for example. It is.

Next, the second invention of the present application will be explained in detail.

The second invention of the present application relates to a 9J1 manufacturing method for a flat harness, and its gist is that a plurality of engagement recesses with open upper ends are formed on one side of a thermoplastic resin layer (the width of the thermoplastic resin layer). the thermoplastic T3131
A harness band member is formed by laminating a mold release layer made of a resin having a higher melting point than the resin on the surface opposite to the engagement recess side, and the harness band member is placed at an appropriate interval, After forming a breaking line that cuts through the engagement recess so as not to touch one side edge of the harness band member, and fitting the KQ member into each of the engagement recesses, the line is cut along the entire length of the harness band member. The side wire portions are cut to form independent harness bands, and then each harness band is placed along each wiring member at appropriate intervals, and each wiring member is shaped to fit a predetermined wiring route. Then, each harness band is heated and pressurized to fuse it to the wiring member, and then cooled.

The invention of Mm2 is the harness band of the first invention,
Therefore, the wiring member, the thermoplastic m-layer, and the mold release layer are the same as those of the above invention, and since the contents overlap, the explanation thereof will be omitted.

The thermoplastic If m layer is formed, for example, by extrusion molding into a sheet having a cross-sectional shape having a required engagement recess.

Also, the above mold release layer is thermoplastic! ! A primer is applied to the opposite side of the engagement recess on the oil wJ1 using a roll coater, a doctor blade, a spray, etc., and then the primer is laminated on the applied surface and bonded by pressing or heating.

In this case, a harness band member in which the thermoplastic phase m layer is covered with a release layer may be manufactured simultaneously using the twin-screw extrusion method.

Further, when a primer is used to bond the thermoplastic t3I resin layer and the mold release layer, a hot melt adhesive is used as the primer, but the coating thickness is not particularly limited. , in general, may be appropriately selected from the range of 5 to 50 μ[n.

The hot melt adhesives used in Uni are not particularly limited, but include the above hot melt adhesives! It is preferable that the melting point is lower than that of the resin constituting the fat layer.

In addition, when forming break lines at appropriate intervals on the harness band member, the distance between the break lines depends on the number of wiring members to be fitted, wire diameter, resilience to bending force, covering material of the wiring member and thermoplastic resin. It is necessary to take into consideration the strength of the fusion bond between the wiring members and the layers, and to provide sufficient spacing to fix each wiring member to each other by fusion bonding. is formed.

The breaking line formed on the harness band member is formed so as not to touch at least one side edge of the harness band member, for example, formed so as to leave a gap of 5 to 10 mm uncut from one side edge of the harness band member. be done.

The side edges of the harness band member that are left uncut do not necessarily have to have the above-mentioned laminated structure; rather, only a release layer is laminated on the side edges in order to save materials and facilitate cutting. It is preferable to configure it so that

Note that the total length of the harness band member can be set to any length.

The harness bands formed by cutting out the harness band members are arranged at appropriate intervals along the wiring members.

The interval between the harness bands is determined by taking into consideration the number of wiring members, the rigidity of each wiring member, the branching position and gathering position of the wiring, and the like.

To shape the wiring member, for example, attach the harness unit or harness before attaching the harness band to the upper square of the pattern diagram drawn on a flat plate in advance, shift the harness band to a predetermined position one by one, and connect the harness band to a predetermined branch. Required arrangement II at position
This is done by removing member A and matching each wiring member to its respective pattern.

Fusion of harness band and wiring member by heating and pressurizing
For example, a hot plate may be used to heat and press each harness band in sequence to fuse the harness bands, or all harness bands may be heated and pressurized simultaneously to fuse the harness bands.

(e) Function According to the flat harness of the present invention, the wiring members are fitted into the harness bands that bind the wiring members, and the harness bands are placed along the #i1 member with an appropriate interval between the harness bands. Also, at the branching point, divide the harness band between the wiring member to be branched and the remaining distribution member, and place the divided harness band in an appropriate position while shaping the wiring member to be branched. Shift to
A 7-row Y harness unit or a flat harness can be formed by a simple process of heat-pressing and fusing harness bands to wiring members simultaneously or sequentially! ! ! It has the effect of reducing the amount of effort and time required for the process.

In this case, the unevenness of the wiring members can be easily and reliably corrected by shifting the harness band and the #X member is squeezed by the harness band. can be corrected at the same time.

In addition, in curved wiring sections, the harness band is moved while twisting to correct the whitening tendency of the wiring members, and also to create a bending habit in each wiring member so that all wiring members line up neatly in the same direction and bend. It has an effect that can be used.

Therefore, whether it is a straight wiring section, a curved wiring section, or a branch section where the wiring members in the - section are wired with a different curve from the other wiring members, it is easy to obtain a good appearance in which each wiring is neatly arranged. It turns out.

In the flat harness of the present invention, each wiring member is fused to the natural plastic resin layer, so it is no problem that the material on the surface of each wiring member, that is, the covering material, is different from the resin of the thermoplastic resin layer. Power lines, electrical signal lines, and optical signal transmission ik! Even wiring members of p can be freely combined and bundled.

In addition, when fusing the harness band and the wiring member, the release layer that is directly heated and pressurized by the hot plate has a higher melting point than the thermoplastic resin layer, so it melts and is fused to the hot plate, etc. This has the effect of allowing the harness or harness unit to be taken out from the hot plate etc. easily and in a short time.

Furthermore, according to the method for manufacturing a flat harness according to the present invention, a large number of harness bands can be continuously formed with the centers of their engagement recesses aligned by forming the breaking lines at appropriate intervals on the harness band member. By fitting the wiring members into these engaging recesses, each wiring member can be easily fitted to a large number of harness bands, further reducing manufacturing effort and time. It has an effect.

In particular, when the thermoplastic resin layer is formed by extrusion molding and the release layer is continuously laminated and bonded, the harness band member can be manufactured continuously to further reduce the manufacturing cost. You can do it from

Furthermore, when all the harness bands and wiring members are fused together, the time required for attachment can be minimized by selecting a thermoplastic resin layer.

D) Examples Hereinafter, examples of the present invention will be described in detail based on the drawings, but the present invention is not limited thereto.

FIG. 1 is a cross-sectional view of a harness band member as an intermediate product for manufacturing the harness band used in the present invention, and FIGS. 2 to 6 show the steps of an embodiment of the method of the present invention. FIG. 3 is a close-up perspective view.

First, the procedure for making a harness band member as an intermediate product for manufacturing the harness band used in the present invention will be explained.

First, a thermoplastic resin layer 1 is formed by extrusion molding 1.

This thermoplastic resin layer 1 is formed into a sheet shape with a flat cross section and an engaging recess 2 for passing the required wiring member 7 through the JiTJ, for example, as shown in Figs. fjS1 to 6. .

The engagement recess 2 is formed in the shape of a keyhole with a black part at the bottom having approximately the same diameter as the wiring member 7.

The TJT fat used here is thermoplastic! It is not particularly limited as long as it is a material that can fix the wiring member 7 by F'A bonding, for example, polyethylene, polyvinyl chloride, polyester, polyamide, polyurethane, polyethylene and its copolymer, polyamide type. Hot melt resin, polyester hot melt resin, butyral hot melt υ1m, polyvinyl acetate and its copolymer, cellulose permeable hot melt DI resin,
υ (fats such as polymethyl methacrylate-1 hot melt) WIN, polyvinyl ether hot melt F31 resin, polyurethane hot melt resin, polycarbonate hot melt) t3flllf are used. Here, examples of polyethylene and its copolymers include Examples include resins such as polyethylene, ethylene-vinyl acetate copolymer, enalene-ethyl acrylate hot-melt resin, and ethylene-isobutyl acrylate copolymer hot-melt resin.

For example, in the case of a harness band used for an automobile heavy harness, the electric power KQ in the wiring member 7 of the automobile harness is
etc. are coated with polyvinyl chloride, by forming the thermoplastic resin layer 1 with polyvinyl chloride, the two can be fused together by heating and pressurizing, thereby improving mechanical properties. An excellent automotive harness can be obtained.

Next, a release layer 3 made of a resin having a higher melting point than the thermoplastic resin layer 1 is laminated via a primer 4 on the surface of the extruded thermoplastic resin layer 1 opposite to the engaging recess 2 side. , the harness band member 5 is formed by adhering.

The release layer 3 is laminated onto the thermoplastic resin layer 1 continuously by a known method.

Here, in order to save materials and facilitate cutting of both side edges of the harness band member 5, thermoplastic 1] (fat layer 1
A mold release layer 3 having a wider width than the width of the harness band member 5 is used, and only the mold release layer WI3 is laminated on both gA edges of the harness band member 5. ~ Primer 4 is coated on one side of release layer 3 with a roll coater immediately before being applied to thermoplastic resin layer 1.
Applied with a doctor blade, spray, etc.

The primer 4 may be one that can bond the thermoplastic resin layer 1 and the mold release WI 3 without heating, but it is preferable to use hotmel Y adhesive cutting, which is easy to handle and can improve workability. In this case, the melting point of the primer 4 is 10% higher than that of the thermoplastic resin (polyvinyl chloride) layer 1.
℃ ethylene-ethyl acrylate-based hot melt ffffffff is used), and the coating thickness of the primer 4 is not particularly limited; in this case, it is about 10
It is expressed in μm.

''-2 Mold release Wi3 is not particularly limited as long as it is formed of the thermoplastic resin layer 1-6 (U1 resin with a melting point higher than 1 m), but in order to keep the working temperature as low as possible, a thermoplastic circle It is preferable that the temperature difference in melting point with layer W11 is within 100°C, and more preferably 10 to 80°C.

Examples of the resin constituting the mold release WJ3 include polyethylene resin, polypropylene resin, polyethylene terephthalate resin, polyvinyl chloride resin, polyvinylidene chloride resin, and polyamide resin.

7. Thermoplastic resin layer 1 is made of polyvinyl chloride resin. η, it is recommended that the release layer 3 be made of a polyethylene terephthalate resin having a higher melting point than the polyethylene terephthalate resin.

Next, as shown in Fig. f53, a large number of break lines 6 are formed on the harness band member 5 at appropriate intervals in the longitudinal direction thereof.

Each breaking line 6 crosses the entire engagement recess 2 formed in the thermoplastic resin layer 1, but in this case, it is formed so as to leave both ya edges of the harness band member 5 uncut over a predetermined width. .

The interval between the break lines 6 depends on the number of wiring members 7 to be fitted, the line type,
Repulsion against bending force, fusion strength between the coating material and the thermoplastic resin layer 1 in the wiring member, etc.! In consideration of f, it is necessary to provide sufficient spacing to fix each wiring member 7 to each other by RA bonding, for example, white! In the case of the fllJ vehicle harness size, breaks m6 are formed at intervals of 5 to 10 IfiI11.

Further, the uncut width of both side edges is preferably set to such a width that the uncut portions are not broken when the wiring member 7 is fitted into the engagement recess 2, and is set to, for example, 5 to 10+n width.

After cutting the harness band member 5 having a large number of fractures [M6] into a required length, as shown in FIG.
Each wiring member 7 is fitted into the corresponding engagement recess 2.

The wiring member 7 includes, but is not particularly limited to, a body wire IMLed with UF resin such as polyethylene, a coated metal wire such as an aluminum wire, an iron wire, a bare metal wire, a cable covered with metal or resin, and a bare optical cable. etc., which are generally used as power lines, electric signal lines, optical signal transmission lines, etc. are used.

After that, remove both side edges of the harness band member 5,
A large number of mutually independent harness bands 8 are formed.

The harness bands 8 are slid freely along the wiring members 7, and are arranged at appropriate intervals so that the bundled arrangement members 7 do not sag and disturb their arrangement, as shown in Fig. f54.

The bending tendency of each arrangement member 7 is corrected to some extent by inserting it into the engagement recess 2, and furthermore, by squeezing each arrangement member 7 by driving the ))-nesnoind 8, each wiring can be easily and reliably fixed. The bending tendency of the member 7 can be corrected.

In a curved wiring section, when the harness band 8 is twisted in the direction in which the wiring members 7 are bent, the original bending tendency of each wiring member 7 is corrected, and the wiring members 7 are bent in the same direction while being arranged in an orderly manner. You can get used to it.

At the wiring branch, as shown in Figure 6, cut the harness band 8 beyond the branch at the desired position in the width direction, and slide the harness band 8 while twisting it! I! If you let lJ,
Each branched member 7 is bent in the same direction while being arranged in an orderly manner.

In this way, the sliding of the harness band 8 corrects the bending tendency of each wiring member 7 in the straight wiring part, and corrects the original bending tendency in the curved wiring part, and also corrects the bending tendency of each wiring member 7 in the straight wiring part.
Since the wiring members 7 are bent in an orderly manner in the same direction, it is possible to obtain an excellent appearance in which the wiring members 7 are arranged in an orderly manner whether in a straight line or a curved line.

After shaping the wiring members 7 according to the respective wiring patterns as described above, they are heated and pressurized all at once using a hot plate or the like, so that the harness band 8 becomes thermoplastic...I]l? I
By fusing vJl and the covering material of each wiring member 7 and cooling it, a 7 runt harness or a 1 ground 7 run harness according to the present invention can be obtained.

The harness band 8 and the wiring member 7 are
Thermoplastic! Since the surface material of the wiring member 7 does not need to be made of the same material as the thermoplastic T, Vt layer 1, it is possible to use the wiring member 7 with a different surface material such as a covering material. Can be combined and tied together.

Furthermore, since the thermoplastic resin layer 1 is covered with the release layer 3 having a higher melting point than this, the molten thermoplastic resin 11/!
There is no possibility that 11 will be fused to a heated and pressurized surface such as a hot plate.

The harness bands 8 and the wiring members 7 do not need to be fused together as described above, and each harness band 8 may be heated and pressurized one by one in sequence.

Note that it is also possible to cut out the side edges of the harness pan 12 member 5 to form a large number of harness bands 8, and to fit each wiring member 7 into each harness band 8, but in this case, the wiring member 7 This is undesirable from a literary point of view, as it takes a lot of effort to fit the wiring members 7 together, and it becomes difficult to correct the bending tendency of the wiring member 7.

By going through the above steps, the automobile, etc. of the present invention can be manufactured.
You will get a harness.

This automatic 1-fl'4F 7 rat harness or has the following structure.

That is, it consists of a plurality of wiring members 7 wired along a predetermined surface and harness bands 8 fused to these wiring members 7 at appropriate intervals, and each harness band 8 connects each wiring member 7. Where to stop! :Thermoplastic tree ffi/! having several engaging recesses 2. ! 11, and a mold release WI3 which is laminated on the surface of the thermoplastic resin layer 1 on the side opposite to the engagement recess 2 side and is made of a resin layer having a higher melting point than the thermoplastic resin layer 1. It consists of

In this case, a primer 4 is interposed between the thermoplastic resin Fr11 and the mold release N3, and thereby the thermoplastic resin layer 1
-N facilitates bonding between the mold release layer 3 and the mold release layer 3.

(g) Effects of the Invention As described above, the harness for automobiles, etc. according to the present invention has the above-mentioned configuration, has a good appearance, has no confusion in the arrangement, 19 members, and is easy to camouflage, maintain, inspect, etc. It has the effect of making work easier.

Also, the white of the present invention! l! Harnesses such as LJ desks can be formed by simply inserting the wiring member #a into the harness band, placing the harness band along the wiring member at appropriate intervals, and applying heat and pressure using a real plate, etc. The effort and time required for manufacturing can be reduced.

In addition, by simply moving the harness band along the wiring member, you can correct the bending of the wiring member, and by simply moving the harness band along the wiring member while twisting the harness band, the wiring members can be kept in the same direction while being arranged in an orderly manner. Since the wiring member can be given a desired bending tendency, it is possible to obtain a flat harness with an excellent appearance.

Moreover, since the harness band and each wiring member are fused by melting the thermoplastic ↑34 mN of the harness band, there is no need to use the same material as the thermoplastic resin layer for the covering material of the wiring member, and the Wiring members made of different materials can be freely combined and bundled.

Further, according to the method for manufacturing a flat harness according to the present invention, a large number of harness bands can be manufactured simply and easily, and it is easy to insert the wiring member into each harness band, thereby reducing the time and effort required for manufacturing. The time can be further reduced.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a harness band member as an intermediate product for manufacturing the harness band used in the present invention, and Figs. FIG. In the figure, 1 is a thermoplastic rrarrrt, 2 is an engaging recess, 3 is a release layer, 7 is a wiring member, and 8 is a wire. ]...Island 1, already resin layer, 3rd plan

Claims (4)

[Claims] (1) Consisting of a plurality of wiring members wired along a predetermined surface and harness bands fused to these wiring members at appropriate intervals, each harness band has a required number of wires to lock each wiring member. a thermoplastic resin layer having an engagement recess, and a release layer laminated on the surface of the thermoplastic resin layer opposite to the engagement recess and made of a resin having a higher melting point than the thermoplastic resin layer; A flat harness for automobiles, etc., characterized by comprising: (2) A flat harness for an automobile or the like according to claim 1, wherein the thermoplastic resin layer is formed of the same resin as the coating material of the wiring member. (3) A flat harness for an automobile or the like according to claim 1 or 2, wherein the thermoplastic resin layer is formed of a hot melt resin. (4) A plurality of engagement recesses with open upper ends are formed in one side of the thermoplastic resin layer in a row in the width direction of the thermoplastic resin layer, and a surface of the thermoplastic resin layer on the opposite side from the engagement recess side. A harness band member is formed by laminating a mold release layer made of a resin with a higher melting point than the harness band member. After fitting the wiring member into each of the engaging recesses, cutting off the side edge portions over the entirety of the harness band member to form mutually independent harness bands; After that, each harness band is placed at appropriate intervals along each wiring member, and each wiring member is shaped to fit a predetermined wiring route, and then each harness band is heated and pressurized to attach it to the wiring member. A method for manufacturing a flat harness for automobiles, etc., which comprises cooling the harness after fusion.