JPS63164110A - 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 (a) Industrial Application Field The present invention is directed to the invention. 1llll flat harnesses used for the transportation of vehicles, aircraft, ships, etc., household electrical equipment, industrial electrical equipment, etc., and their manufacturing methods, especially those that do not require a lot of effort and time. A flat harness for automobiles, etc., which can be formed into a flat harness with a good appearance, and which can be wired in any combination of power lines, electric signal lines, and optical signal transmission lines with the same or different covering materials. and its manufacturing method.

(b) Conventional technology Transport equipment such as automobiles, aircraft, and ships are equipped with various electrical components and control devices, and wiring members installed between these electrical components and control devices are designed to eliminate wiring confusion. ,
To facilitate operations such as camouflage, maintenance, inspection, and replacement,
Wires are routed as common as possible, and in the common wiring section, the wiring members are bound together, the wiring members are glued together, or the wiring members are aligned and fixed to a suitable sheet-like back member.

One or more wiring members formed into a unit in this manner 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 wires that do not branch or merge along the way, such as connection cables that connect a computer and its peripherals, and others are used for wiring that does not branch or merge along the way, such as connection cables that connect a computer and its peripherals. Some wires are used for wiring that branches or merges along the way, such as the harness that connects the vehicle 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,
■Synthetic resin-coated electric wires are aligned on a sheet-like synthetic resin back member placed on a predetermined pattern,
A method of heat-sealing the back member and the synthetic resin Ti and I electric wires by applying heat and pressure. ■ method of gluing the contact parts of synthetic resin-coated electric wires arranged in a predetermined pattern with adhesive, ■ method of gluing synthetic resin-covered electric wires arranged in a predetermined pattern with adhesive A method of fixing from both sides with tape is known.

(c) Problems to be Solved by the Invention However, in these conventional flat harness manufacturing methods, except for the wiring pattern specified in advance on the flat plate,
Place each arrangement & Q member on top of this, and check that there are no stacks, intersections, etc., and then place the whole or place 1! ! : Parts need to be melted or glued.

Here, the problem is the installation of each wiring member onto a predetermined wiring pattern.

In other words, it is common for each wiring member to have a tendency to bend, and it is necessary to correct the bending tendency while placing the wiring member on the wiring pattern, which requires a lot of effort, effort, and time. In addition, there is a good chance that the bending tendency is not properly corrected and the appearance is damaged.

Particularly, in branch areas and curved wiring areas, it is extremely difficult to position and align each wiring member, and it is extremely difficult to arrange and fix the wiring members beautifully. becomes even more noticeable.

Furthermore, when fixing each wiring member to each other or each wiring member and the back member by fusing or adhering, there is a problem that the covering material of each wiring member and the material of the back member must be the same C). .

The present invention has been made in consideration of the above circumstances, and it is possible to manufacture a flat harness with a good appearance without much effort or time, and even if the covering material is the same or different, In other words, the purpose is to provide a flat harness for automobiles, etc., which allows wiring members such as power lines, electric signal lines, and optical signal transmission lines to be wired in any combination regardless of the covering material, and a method for manufacturing the same. It is something to do.

(d) Means for Solving the Problems In order to achieve the seven ratharnesses of automobiles, etc. according to the present invention, or the above objects, a plurality of MA members wired along a predetermined surface and suitable for these wiring members. Consisting of harness bands fused at equal intervals, each harness band is
A thermoplastic resin layer having a required number of insertion holes through which each wiring member is inserted, and laminated on both the front and back sides of this thermoplastic resin layer,
This is a technical measure in which the release layer is made of a resin having a higher melting point than the thermoplastic rratrt.

The present invention will be explained in detail below.

The wiring members used in the present invention are not particularly limited, and include resin-coated metal wires such as copper wires, aluminum wires, and iron wires coated with synthetic resins such as polyethylene and polyvinyl chloride, or copper wires and aluminum wires. Wires, bare metal wires such as iron wires, fibers coated with metal or synthetic resin, bare optical fibers, and generally power lines and signal transmission lines for transmitting electrical signals or optical signals are included.

The present invention is characterized in that a harness band that arranges and fixes a plurality of wiring members in a flat shape in the horizontal direction includes a thermoplastic resin layer having a required number of insertion holes through which each of the wiring members is inserted, and a thermoplastic resin It is comprised of a release layer which is laminated on both the front and back surfaces of the layer and is made of a resin having a higher melting point and α than the thermoplastic resin layer.

The thermoplastic RRAM has required electrical properties such as electrical insulation, mechanical properties such as vibration resistance, impact resistance, and flexibility, fire resistance properties such as self-extinguishing property, flame retardance, and heat resistance. A layer formed of a resin having at least one of properties such as hardness, chemical resistance, and weather resistance is preferable.

The resin used to cover the wiring #i1 member includes copper wire,
There is no particular limitation as long as it is used for coating metal wires such as aluminum wires, power lines such as Optical 7 Eyepa, signal transmission lines that transmit electrical signals or optical signals, but specific representative examples are listed below. and polyethylene, polyvinyl chloride, polyester, polyamide, polyurethane, etc.

When forming the thermoplastic resin layer with these resins, it is desirable to form the thermoplastic resin layer with the same resin as the coating material of the wiring member.

With this configuration, the coating resin of the wiring member and the thermoplastic m layer 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 formed of a hot-melt type resin is desirable because it can fuse and fix any covering material of the wiring member.

The hot melt resin used in the present invention is not particularly limited, but includes, for example, polyethylene and its copolymers, polyamide hot nord resins, polyester hot melt resins, butyral hot melt resins, polyvinyl acetate, and Copolymer hot melt resin, cellulose conductor hot melt resin, vinyl chloride-vinyl acetate copolymer, polymethyl methacrylate hot melt resin, polyvinyl ether hot melt resin, polyurethane hot nord resin, polycarbonate hot melt resin Resin such as resin is used. Here, examples of polyethylene and copolymers thereof include polyethylene, ethylene-vinyl acetate copolymer, ethylene-vinyl acetate copolymer,
Typical examples include ethyl acrylate hot melt resins and ethylene-isobutyl acrylate copolymer hot melt resins.

Further, the above-mentioned hot-melt resins include those blended with 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 taking into consideration the usage conditions of the wiring member and the temperature (heat generation and environment) during use. It is desirable to select and use one that is higher than the temperature and has a relatively low melting point.

The thermoplastic resin layer is formed with a plurality of through holes for passing through the wiring members, but the size of the through holes is not particularly limited as long as the wiring members can be inserted therethrough. Slightly thicker than the diameter of the member (formed.

Moreover, the mold release layer used in the present invention is the above-mentioned thermoplastic J.
ff1 layer! There is no particular limitation as long as it is made of a resin with a melting point higher than that of the thermoplastic resin layer, but the temperature difference between the melting point of the thermoplastic resin layer and the melting point of the release layer is 100°C or less in order to keep the working temperature as low as possible. is preferable, especially 10 to
Most preferably, the temperature is 80°C.

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 the appearance of the material from flowing and collapsing, resulting in poor appearance.

Configure the release layer! The I fat is not particularly limited as long as it has a higher melting point than the thermoplastic resin layer, for example, cellophane, polycarbonate) If fat, doryethylene resin, polypropylene resin, polyethylene tele 7 tarley)! Polyester resins such as f*, polyvinyl chloride resins, polyvinylidene chloride 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 selected and used for the release layer.

The above-mentioned thermoplastic layer 81 and the release layer are bonded together via a primer such as a hot melt adhesive.

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

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

Next, to explain the method of fixing the wiring member by inserting the harness band of the present invention, first, the wiring member is inserted into the harness band, and the harness band with the wiring member inserted is inserted into the so-called real plate device. In this case, all the harness bands may be fused to the wiring member at the same time or sequentially while flowing along the belt line.

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

The second invention of the present application relates to a method for manufacturing a flat harness. They are formed side by side in the width direction, and a release layer made of a resin having a higher melting point than the thermoplastic resin layer is laminated on both the front and back surfaces of the thermoplastic resin layer to form a harness band member. Then, after forming a breaking line that crosses all the insertion holes so as not to reach both side edges of the harness band member, and inserting the wiring member into each of the insertion holes, are cut out to form mutually independent harness bands, and then each harness band is placed and moved at appropriate intervals along each wiring member, and at the branching part, the harness band is broken between the required wiring members. Then, each wiring member is shaped to fit a predetermined wiring route, and the harness band is heated and pressurized to be fused to the wiring member.

The second invention of this M is the harness band of the first invention of this N,
Therefore, the wiring member, the thermoplastic resin layer, and the mold release layer are the same as those of the above invention, and the explanation thereof will be omitted since the content is heavy.

The thermoplastic resin layer is formed, for example, by extrusion molding as a sheet having a cross-sectional shape having a required insertion hole.

The above-mentioned release layer is prepared by applying a primer to one side of the side to be bonded to the thermoplastic resin layer using a roll coater, doctor blade, spray, etc.
tm, and is bonded by applying pressure, heating, and pressure.

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

In addition, when a thermoplastic (3) adhesive layer and a release layer are bonded using a primer, for example, a hot melt adhesive is used as the primer, and the coating thickness is not particularly limited. However, in general, it may be selected appropriately from the range of 5 to 50 μto.

The hot-melt adhesive layer used here is not particularly limited, but one preferably has a melting point lower than that of the resin constituting the hot-melt resin N layer.

In addition, when forming break lines at appropriate intervals on the harness band member, the interval between the break lines should be determined based on the number of wiring members to be passed through 11f, wire diameter, repulsion against bending force, arrangement! It is necessary to take into account the fusing strength between the covering material of the member and the thermoplastic resin layer, and to provide sufficient spacing to fix each wiring member to each other by fusing. In the case of a harness, they are formed at intervals of 5 to 20 mm.

The breaking line formed in the harness band member is formed so as not to reach at least one side edge of the harness band member, for example, it is formed so as to leave a gap of 5 to 101IIIO from both side edges of the harness band member. Ru.

The side edges of the harness band member that are left uncut do not necessarily have to have the above-described laminated structure; rather, only the release layer is laminated at the 1III edge in order to save materials and facilitate cutting. It is preferable to configure it so that

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

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

The spacing of this harness band is determined by the number of wiring members and m
It is determined by taking into consideration the rigidity of the n material, the branching position and gathering position of the wiring, etc.

To shape the wiring member, for example, place the harness unit or harness before fusion of the harness band on a pattern diagram prepared on a flat plate in advance, shift the harness band to a predetermined position one by one, and make a predetermined branch. This is done by ordering the required wiring members at a certain position 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 order to bond them in layers (or, all the harness bands may be simultaneously heated and pressurized to fuse them together).

(e) Function According to the flat harness according to the present invention, the #2g material is inserted into the harness band that binds the wiring members, and the harness band is placed along the wiring member with an appropriate interval between the harness bands. Also, at the branching point, the harness band is divided between the wiring member to be branched and the remaining wiring member, and the divided harness band is shifted to an appropriate position while shaping the wiring member to be branched. , flat harness unilateral or flat harness can be formed by a simple process of layering the harness band on the wiring member by heating and pressing simultaneously or sequentially.
It has features that can reduce the labor and time required for manufacturing.

In this case, the tendency of the wiring member to bend can be easily fixed by shifting the harness band, as the wiring member is squeezed by the harness band. 11. Moreover, it is possible to reliably correct the bending of all the wiring members, and to correct the bending tendency of all the wiring members at the same time.

In addition, in curved wiring sections, by twisting and moving the harness band, the bending tendency of the wiring members is corrected, and at the same time, each wiring member is given a bending tendency so that all the wiring members line up neatly in the same direction and bend. It has the ability to do this.

Therefore, whether it is a straight wiring section, a curved wiring section, or a branch section where some wiring members are wired with different curves from other wiring members, it is easy to obtain a good appearance in which each wiring is neatly aligned. .

Furthermore, in the flat harness of the present invention, each wiring member is fused to the thermoplastic resin layer, so that the material on the surface of each wiring member, that is, the covering material, has a thermoplastic 741! There is no problem in that the resin of the layer is different, and wiring members such as power lines, electric signal lines, optical signal transmission lines, etc. coated with different coating materials 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 melts onto the hot plate, etc. This has the effect of allowing the harness or harness unit to be easily and quickly taken out from the main plate etc. without the risk of it getting stuck.

Furthermore, according to the method for manufacturing a 7 runt harness according to the present invention, by forming the break lines at appropriate intervals in the harness band member, a large number of 71 runt harnesses can be continuous with the centers of their insertion holes aligned. By inserting the wiring member into the insertion hole,
Each wiring member can be easily inserted into a large number of harness bands, and the manufacturing effort and time can be further reduced.

In particular, when a thermoplastic resin layer is formed by extrusion molding, and a release layer is continuously laminated and bonded on both the front and back surfaces, 51 harness band members can be made continuously to further reduce manufacturing costs. It can also be done.

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

(f) 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. fjS1 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. FIG.

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 T-layer 1 is formed by extrusion.

This thermoplastic t! The f1m layer 1 is formed, for example, in the form of a sheet with a flat cross section and has an insertion hole 2 through which a required wiring member 7 is inserted, as shown in FIGS.

The diameter of the insertion hole 2 is equal to or slightly larger than the diameter of the #i member 7 inserted therein.

The enclosure T used here is not particularly limited as long as it is made of thermoplastic ufIJllF and can fix the wiring member 7 by bonding, for example, polyethylene, polyvinyl chloride, polyester, polyamide, polyurethane, etc. Polyethylene and its copolymers, polyamide hot melt) FAI resin, polyester hot melt)
I (fat, butyral hot melt (fat), polyvinyl acetate and its copolymers, cellulose derivative hot melt) If fat, polymethyl methacrylate hot melt resin, polyvinyl ether hot melt resin, polyurethane hot melt Q (Mairi, polycarbonate-based hot melt resins such as Mairi are used. Examples of polyethylene and its copolymers include polyethylene,
Examples of such resins include ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate hot melt tJ4 resin, and ethylene-isobutyl acrylate copolymer hot melt t31 resin.

For example, in the case of a harness band used for an automobile harness, if the power lines etc. in the R member of the automobile harness are covered with polyvinyl chloride, the above thermoplastic resin layer is formed of polyvinyl chloride and heated. By applying pressure, the two can be fused to each other, resulting in an automotive harness with excellent mechanical properties.

Next, a mold release layer 3 made of a resin having a higher tJ melting point than the extruded thermoplastic C (on both the front and back sides of the fat layer) is applied with a primer 4.
The harness band member 5 is formed by laminating and adhering them together.

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, a mold release fVI3 having a width wider than the width of the thermoplastic resin layer 1 is used, and the both side edges of the harness band member 5 are removed. In the section, only the release layer 3 is laminated.

Immediately before the primer 4 is laminated onto the thermoplastic resin Wi1, it is coated on one side of the release mold Fvi3 with a roll coater, a doctor blade,
It is applied by spraying, etc.

As primer 4, thermoplastic tQIm layer 1 is applied without heating.
Although it is possible to use a material capable of adhering the first and second layers 1 and 3, it is preferable to use hot melt adhesive Rokuyo, which is easy to handle and can improve workability. In this case, the RA point of the primer 4 is 10°C lower than that of the thermoplastic resin (polyvinyl chloride) layer 1. Ethylene-ethyl acrylate-based melt resin is used. The film thickness is not particularly limited, and in this case, it is about 10μ.
It is adjusted according to theory.

As the mold release M3, afJJi? However, in order to keep the working temperature as low as possible, the temperature difference in melting point with thermoplastic resin NJ1 is 100%.
The temperature is preferably within 10°C, and more preferably 10 to 80°C.

Mold release/i! ! As the resin constituting 3, for example, polyethylene tree layer, polypropylene t[t? , polyethylene terephthalate resin, polyvinyl chloride resin, polyvinylidene chloride! ! Examples include f IItr, polyamide CI resin, and the like.

When the thermoplastic resin layer 1 is made of polyvinyl chloride resin, it is recommended that the mold release layer 3 is made of polyethylene terephthalate resin, which has a higher melting point than that of polyvinyl chloride resin.

Next, as shown in FIG. 3, a large number of breaks #a6 are formed in the harness band member 5 at appropriate intervals in the longitudinal direction. Each break line 6 crosses all the insertion holes 2 formed in the thermoplastic resin layer 1, but is formed so as to leave a predetermined width qr) at both end edges of the harness band member 5.

The interval between the break lines 6 is determined by Ml for each arrangement X member, taking into consideration the number of wiring members to be inserted, the line shape, the repulsion against bending force, the fusion strength between the covering material and the thermoplastic resin layer in the arrangement member, etc. be spaced far enough apart to secure them to each other (for example, in the case of an automatic harness, 5 to 1
Broken lines are formed at intervals of 0III1.

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 is inserted into the insertion hole 2, for example, 5 to 10 m+-.

After cutting the harness band member 5 having a large number of break lines 6 into a required length, each wiring member 7 is inserted into the corresponding insertion hole 2, as shown in Figure t54.

The wiring member 7 is made of, but not limited to, polyethylene or the like! Irrf! WTC-covered metal wires such as shell wires, aluminum wires, iron wires, bare metal wires, optical cables covered with metal or resin, bare optical cables, etc., generally used as power lines, electric signal lines, optical signal transmission lines, etc. What is used is used.

After that, both side edges of the harness band member 5 are cut off,
A large number of mutually independent harness bands 8 are formed. The harness bands 8 are allowed to freely slide along the wiring members 7, and are arranged at appropriate intervals to prevent the bundled wiring members 7 from sagging and disrupting their arrangement, as shown in Figure Pt54.

The bending tendency of each arrangement member 7 is corrected to some extent by inserting it into the insertion hole 2, and furthermore, by driving the harness band 8 and squeezing each arrangement member 7, each wiring member 7 can be easily and reliably bent. Curved habits can be corrected.

In the curved arrangement part, when the harness band 8 is twisted and slid in the direction of bending the wiring members 7, each wiring member 7 corrects its original bend 9 and keeps it arranged in the same direction. It has a habit of bending.

At the branching part of the wiring, as shown in FIG. 6, when the harness band 8 beyond the branching part is cut at a desired position in the width direction and the harness band 8 is slid while twisting, each wiring member to be branched is cut. 7 is arranged in an orderly manner and bends in the same direction.

In this way, by sliding the harness band 8, the linear IQ
The bending tendency of each arrangement member 7 is corrected in the curved wiring part, and the original bending tendency is corrected in the curved wiring part, and the arrangement wiring members 7 are made to bend in the same direction in an orderly manner. An excellent appearance can be obtained in which the wiring members 7 are arranged in an orderly manner.

After shaping the wiring member 7 to match each wiring pattern as described above, the harness band 8 through which the wiring member 7 is inserted is heated and pressurized all at once using a hot plate or the like.
By fusing the thermoplastic resin W11 of the harness band 8 and the covering material of each wiring member 7 and cooling it naturally, a wire harness unit or a flat harness according to the present invention can be obtained.

The harness band 8 and the wiring member 7 are
Since the thermoplastic resin NJ1 is melted and fused, there is no need for the surface material of the wiring member 7 to be made of the same material as the thermoplastic resin layer 1, and it is possible to freely use the wiring member 7 with a different surface material such as a covering material. Can be combined and tied together.

In addition, both the front and back surfaces of the thermoplastic resin layer 1 have a higher melting point than this, the mold release 1r! Since it is coated with I3, there is no possibility that the molten thermoplastic <341]Tt WJ 1 will fuse to a heated and pressurized surface such as a hot plate.

It is not necessary to fuse the harness band 8 and the wiring member 7 all at once as described above, and each harness band 8 may be heated and pressurized one at a time.

Note that it is also possible to form a large number of harness bands 8 by cutting out both side edges of the harness band member 5 and insert each wiring member 7 through each harness band 8, but in this case, the wiring member 7 It takes a lot of time to insert the wiring member 7.
1) This song is practically undesirable because it makes it difficult to correct the habit.

By passing through each of the above steps, the flat harness for automobiles, etc. of the present invention can be obtained.

This vehicle harness 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, each harness band 8 passing through each wiring member 7. A thermoplastic resin layer 1 having a required number of insertion holes 2, laminated on both the front and back sides of this thermoplastic resin layer 1,
The mold release layer 3 is made of a resin having a higher melting point than the thermoplastic resin layer 1.

In this case, a primer 4 is interposed between the thermoplastic resin layer 1 and the mold release WI3, and thereby the thermoplastic υ (the resin layer 1
This makes it easier to bond the mold release layer 3 to 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 following:
With the above configuration, it has a good appearance, there is no confusion of wiring members, and it has the advantage that operations such as camouflage, maintenance, and inspection can be easily performed.

Further, the harness for an automobile or the like of the present invention can be formed by simply inserting a wiring member into a harness hand, arranging the harness band along the wiring member at appropriate intervals, and heating and pressurizing it using a hot plate or the like. Therefore, the labor and time required for manufacturing can be reduced.

In addition, by simply moving the harness band along the wiring members, you can correct the bending of the wiring members, and by simply moving the harness band along the wiring members while twisting the harness band, the wiring members can be arranged in an orderly manner. Since the wiring member can be given a desired bending tendency, such as bending in a certain direction, a flat harness with an excellent appearance can be obtained.

Moreover, since the harness band and each wiring member are fused by fusing the thermoplastic resin layer 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. Wiring members whose covering material has various holes can be freely combined and bundled.

Furthermore, when fusing the harness band and the wiring member, heat and pressure are applied directly using a hot plate, etc., but since the release layer has a higher melting point than the thermoplastic resin layer, it is melted and fused onto the hot plate etc. This has the effect that the harness or harness hand can be taken out from the hot plate etc. extremely easily and in a short time without the risk of getting stuck.

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 wiring members can be easily inserted into each harness band, thereby reducing the labor and time required for manufacturing. 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 a harness band used in the present invention, and Figs. 12 to 6 are perspective views showing the steps for manufacturing a flat harness for an automobile using this member. It is a diagram. In the figure, 1 is a thermoplastic resin layer, 2 is an insertion hole, and 3 is a separation τ! 7 is a wiring member, and 8 is a harness band. 1st Figure 1・-1 River 11 + - Humiliation Figure 3 2...Special Criminal 3...-ALfAi 7°° 夡蛯满简 4〈 ~

Claims (4)

[Claims] (1) Consisting of a plurality of wiring members routed along a predetermined surface and harness bands fused to these wiring members at appropriate intervals, each harness band has the required number of wires to pass through each wiring member. It is characterized by being composed of a thermoplastic resin layer having an insertion hole, and a release layer made of a resin having a higher melting point than the thermoplastic resin layer, which is laminated on both the front and back surfaces of the thermoplastic resin layer. Flat harness for automobiles, etc. (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) Inside the thermoplastic resin layer, a plurality of through holes for passing wiring members are formed in line in the width direction of the thermoplastic resin layer, and the front and back screens of the thermoplastic resin layer have a melting point higher than that. A harness band member is formed by laminating a release layer made of a resin with a high hardness, and a break line crossing all the insertion holes is connected to at least one side edge of the harness band member at an appropriate interval. After inserting the wiring member into each insertion hole, cut out the side edges along the entire length of the harness band member to form independent harness bands, and then insert each harness band into individual harness bands. The harness band is characterized by arranging the wiring members at appropriate intervals along the wiring members, shaping each wiring member to fit a predetermined wiring route, and then heating and pressurizing each harness band to fuse it to the wiring member. , a method for manufacturing flat harnesses for automobiles, etc.