Flat bundling member and wire harness

Abstract

To provide a flat bundling member and a wire harness capable of further improving workability.SOLUTION: The flat bundling member 10 is formed in a sheet shape, bundles the electric wires W in a flat shape, and includes a plurality of easy-to-break structures 11 for folding the sheet in a bellows shape, an electric wire arrangement portion 12 that is a portion serving as a flat surface portion when the sheet is folded in a bellows shape by the plurality of easy-to-break structures 11 and that arranges the electric wires W in a flat shape, and a protection portion 13 that is connected to the electric wire arrangement portion 12 on the endmost side when the sheet is folded in a bellows shape by the plurality of easy-to-break structures 11 and that protects the electric wires W.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a flat bundling member and a wire harness. [Background technology]

[0002] Conventionally, there has been a demand for lower-profile wire harnesses in order to secure space inside a vehicle. As one example, a wire harness has been proposed in which electric wires are arranged in parallel on a flat sheet material, and then another sheet material is arranged on top of that and electric wires are arranged in parallel on top of that, thereby flatly bundling electric wires in multiple stages (see, for example, Patent Document 1). Another proposed wire harness has also been proposed in which electric wires are arranged in parallel in one or two stages on a sheet material, and the sheet material is folded to cover at least a portion of the arranged electric wires from above and below (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-204745 [Patent Document 2] Patent Publication No. 2021-157927 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the sheet materials described in Patent Documents 1 and 2 do not offer good workability as flat bundling members for bundling wire harnesses into a flat shape.

[0005] For example, in the technology described in Patent Document 1, by sequentially placing a sheet material, arranging electric wires, and placing another sheet material, electric wires arranged in a single layer are sandwiched from above and below to obtain a low-profile wire harness. However, when electric wires are arranged in two or more layers, the arrangement of the electric wires and the placement of the sheet material must be performed one or more additional times, which increases the number of steps. Therefore, the wire harness described in Patent Document 1 cannot be said to be easily produced.

[0006] Furthermore, the technology described in Patent Document 2 also requires a worker to place a sheet material, place electric wires, and fold them in the appropriate places. Therefore, if a worker folds them in the wrong places, they may not be able to clamp the electric wires that should be clamped from above and below, or may end up clamping an electric wire that is better not to be clamped from above and below. Therefore, the worker must be careful to fold them in the correct places, and the wire harness described in Patent Document 2 cannot be said to be easily produced.

[0007] The present invention has been made to solve the above-mentioned conventional problems, and its object is to provide a flat bundling member and a wire harness that can further improve workability. [Means for solving the problem]

[0008] The flat bundling member of the present invention is a flat bundling member that is configured in a sheet shape and bundles electric wires into a flat shape, and is equipped with a plurality of easy-folding structures for folding the sheet into an accordion-like shape, and an electric wire arrangement section that becomes a flat surface when folded into an accordion-like shape by the plurality of easy-folding structures, and is used to arrange the electric wires in a flat shape.

[0009] In addition, the wire harness of the present invention comprises the above-mentioned flat bundling member folded in an accordion-like shape, and electric wires arranged and fixed in the electric wire arrangement portion of the flat bundling member, and the protective portions at both ends of the flat bundling member are connected to each other. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a flat bundling member and a wire harness that can further improve workability. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a side view showing a schematic configuration of a wire harness and a flat bundling member according to a first embodiment. FIG. [Figure 2] 2 is a side view showing a partial configuration of the wire harness shown in FIG. 1 in an unfolded state. FIG. [Figure 3] 3A and 3B are enlarged cross-sectional views showing details of the flat focusing member shown in FIGS. 1 and 2, where (a) shows a first example, (b) shows a second example, (c) shows a third example, and (d) shows a fourth example. [Figure 4] FIG. 3 is a first plan view showing details of the protective portion of the flat focusing member shown in FIGS. 1 and 2. [Figure 5] 3 is a second plan view showing details of the protective portion of the flat focusing member shown in FIGS. 1 and 2. FIG. [Figure 6] 3A to 3C are process diagrams showing a method for manufacturing a wire harness according to the first embodiment, in which (a) shows a first process, (b) shows a second process, and (c) shows a third process. [Figure 7] 1 is a diagram illustrating an example. [Figure 8] FIG. 10 is a side view showing a flat bundling member used in the wire harness according to the second embodiment. [Figure 9] FIG. 10 is a plan view showing a flat bundling member used in the wire harness according to the third embodiment. [Figure 10] FIG. 10 is a plan view showing an example of accordion folding of a flat focusing member according to a first modified example. [Figure 11] FIG. 10 is a plan view showing an example of accordion folding of a flat focusing member according to a second modified example. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present invention will be described below in accordance with preferred embodiments. Note that the present invention is not limited to the embodiments shown below and can be modified as appropriate without departing from the spirit of the present invention. In addition, in the embodiments shown below, some components are omitted from illustration and description, but it goes without saying that publicly known or well-known technologies are applied as appropriate to the details of the omitted technologies within the scope of the content described below.

[0013] Fig. 1 is a side view showing a schematic configuration of a wire harness and a flat bundling member according to a first embodiment. The wire harness WH shown in Fig. 1 is provided, for example, on a wall surface WA of a vehicle, and is used to arrange and bundle a plurality of electric wires W in a multi-stage, flat manner. Such a wire harness WH includes a plurality of electric wires W, a flat bundling member 10, and a connecting and fixing member 20.

[0014] The plurality of electric wires W are arranged in a flat shape, i.e., along the wall surface WA in the example shown in Fig. 1. The plurality of electric wires W may be power lines, signal lines, or a combination of these. Note that the electric wires W are assumed to be of any size and made of PVC (Polyvinyl Chloride) or polyolefin, but are not limited thereto and may also be twisted wires, coaxial wires, or optical fibers.

[0015] The flat bundling member 10 is configured in a sheet shape and is folded in at least two places to be folded in an accordion shape to flatly bundle the electric wires W. Fig. 2 is a side view showing a partial configuration of the wire harness WH shown in Fig. 1 in an unfolded state.

[0016] As shown in Fig. 2, the flat bundling member 10 includes a plurality of easy-folding structures 11, an electric wire arrangement portion 12, and a protective portion 13. The plurality of easy-folding structures 11 are intended to make it easier to fold the sheet into an accordion-like shape. In other words, the easy-folding structures 11 may have a structure that reduces the force required for folding compared to a portion that does not have the easy-folding structures 11 (for example, the portion indicated by the symbol X). In the first embodiment, the easy-folding structures 11 are configured with fold lines 11a that are formed by mountain folds or valley folds in advance in order to fold the sheet into an accordion-like shape.

[0017] The electric wire placement portion 12 is a portion that becomes a flat surface when folded accordion-like by the easy folding structure 11, and is used to place the electric wires W in a flat state. In the first embodiment, three easy folding structures 11 are provided, and the portions sandwiched by the easy folding structures 11 form the electric wire placement portions 12. Note that, although the multiple electric wire placement portions 12 are all the same in shape and area in the first embodiment, some may have different shapes or areas, or all the electric wire placement portions 12 may have different shapes and areas.

[0018] The protective portion 13 is a portion connected to the electric wire placement portion 12 that becomes the endmost side when folded by the easy-folding structure 11, and protects the electric wires W. As shown in Fig. 1, the protective portion 13 is located at the uppermost end or the lowermost end when installed on the vehicle. Therefore, in the first embodiment, the protective portion 13 protects the electric wires W from above and below.

[0019] In the first embodiment, the flat focusing member 10 is provided with the protective portion 13 on both end sides. However, this is not limiting, and the flat focusing member 10 may be provided with the protective portion 13 on only one end, or may not be provided with the protective portion 13 if the flat focusing member 10 itself does not need to be protected, for example, if it is covered with another exterior member.

[0020] The connecting and fixing member 20 shown in FIG. 1 connects the protective portions 13 at both ends of the flat focusing member 10 to each other. In the first embodiment, the connecting and fixing member 20 is made of a resin tape having an adhesive surface on one side and a resin surface on the other side. The resin tape may be a relatively easy-to-remove tape such as Velcro (registered trademark). The connecting and fixing member 20 is not limited to a resin tape, and may be a metal or resin needle member attached with a stapler, or an adhesive interposed between the contact portions of the protective portions 13. The adhesive is assumed to be one or a combination of two or more of natural rubber, styrene-isoprene-styrene block copolymer, and acrylic resin, but is not particularly limited to these.

[0021] Figure 3 is an enlarged cross-sectional view showing the details of the flat focusing member 10 shown in Figures 1 and 2. The flat focusing member 10 can have various layer structures, and the example shown in Figure 3 has a 1- to 3-layer structure.

[0022] First, as shown in FIG. 3(a), the flat focusing member 10 has a single-layer structure made of a base layer 10a. The base layer 10a is made of, for example, a film such as PVC, polyolefin, or PET (Polyethylene Terephthalate). The base layer 10a may also be a film made of fluorine, polyimide, silicone, cellophane, nylon, or the like, or may be a mesh or cloth material. When the flat focusing member 10 has a single-layer structure made of the base layer 10a, the multiple electric wires W are fixed to the flat focusing member 10 (base layer 10a) by heat welding, ultrasonic welding, adhesion, or pressure application using clips or the like.

[0023] Furthermore, as shown in FIG. 3(b), the flat focusing member 10 may have a two-layer structure made up of a base layer 10a and a protective layer 10b. Here, the base layer 10a and the protective layer 10b may be made of the same material or different materials. When the base layer 10a and the protective layer 10b are made of different materials, it is preferable that the protective layer 10b be made of a material that is more abrasion-resistant and impact-resistant than the base layer 10a. Furthermore, the multiple electric wires W are fixed to the flat focusing member 10 (base layer 10a) by heat welding, ultrasonic welding, adhesion, or pressure application using clips or the like, as described above.

[0024] 3(c), the flat focusing member 10 may have a two-layer structure consisting of a protective layer 10b and an adhesive layer 10c. Because this flat focusing member 10 includes the adhesive layer 10c, it is possible to fix the plurality of electric wires W to the electric wire placement section 12 (see FIG. 2) without the need for thermal welding or the like.

[0025] 3(d), the flat focusing member 10 may have a three-layer structure including a base layer 10a, an adhesive layer 10c, and an undercoat layer 10d interposed therebetween. Since this flat focusing member 10 includes the adhesive layer 10c, similar to the above, it can securely arrange multiple electric wires W in the electric wire arrangement section 12 without the need for thermal welding or the like. Furthermore, since this flat focusing member 10 includes the undercoat layer 10d, it can prevent substances in the adhesive layer 10c from migrating to the base layer 10a, which would reduce adhesive strength or cause deterioration of the base layer 10a. Furthermore, since the flat focusing member 10 includes the undercoat layer 10d, it can achieve sufficient adhesion even when the base layer 10a and the adhesive layer 10c are incompatible with each other.

[0026] Furthermore, the flat focusing member 10 is not limited to the above. For example, the flat focusing member 10 may have a combination of the above components, such as the electric wire placement section 12 having the configuration shown in Fig. 3(c) and the protective section 13 (see Fig. 2) having the configuration shown in Fig. 3(b). Also, each of the layers 10a to 10d described above may be composed of two or more layers.

[0027] 4 and 5 are plan views showing the details of the protective portion 13 of the flat focusing member 10 shown in FIGS. 1 and 2. As shown in FIG. 4, the protective portion 13 is preferably embossed. The embossing can be performed, for example, by pressing. In such a protective portion 13, even if wear or the like occurs in the protective portion 13, the convex portions wear first, and after the wear of the convex portions progresses, the concave portions wear. Therefore, the embossed protective portion 13 has improved wear resistance compared to a flat protective portion 13. Furthermore, since the protective portion 13 has unevenness, it can also improve protection performance against impacts from the top surface (dispersion of impact) and punctures (creation of voids).

[0028] 5, the protective portion 13 preferably has a mesh structure. Here, the flat focusing member 10 may be formed as a single layer structure using a mesh-structured base material layer 10a, resulting in the protective portion 13 having a mesh structure. Furthermore, the flat focusing member 10 may have a mesh structure by providing an adhesive layer 10c only on the electric wire placement portion 12 of the mesh-structured base material layer 10a, or by providing an adhesive layer 10c on the entire base material layer 10a. Furthermore, the flat focusing member 10 may have a two-layer structure consisting of the base material layer 10a and the adhesive layer 10c, and the protective portion 13 may be formed by adding a mesh structure as an additional layer to both ends of the flat focusing member 10.

[0029] Next, a method for manufacturing the wire harness WH according to the first embodiment will be described. Fig. 6 is a process diagram showing the method for manufacturing the wire harness WH according to the first embodiment, where (a) shows the first process, (b) shows the second process, and (c) shows the third process.

[0030] First, a flat focusing member 10 as shown in Fig. 6(a) is prepared. This flat focusing member 10 has an easy-fold structure 11 formed by folds 11a that have been previously made into mountain folds or valley folds as shown in Fig. 6(a).

[0031] Next, in a first step, a plurality of electric wires W are fixedly arranged in the electric wire arrangement portion 12. At this time, as indicated by reference numeral 12a, the electric wires W may be fixedly arranged on both sides of the electric wire arrangement portion 12, or as indicated by reference numeral 12b, the electric wires W may be fixedly arranged on one side of the electric wire arrangement portion 12. Furthermore, depending on the specifications of the wire harness WH, there may be an electric wire arrangement portion 12 in which no electric wires W are arranged.

[0032] 6(b), the flat focusing member 10 is folded into an accordion shape. At this time, the flat focusing member 10 is folded into an accordion shape easily and at predetermined positions by the plurality of easy-folding structures 11.

[0033] 6(c), the protective portions 13 of the flat focusing member 10 are connected to each other by the connecting and fixing member 20. The connection is performed by attaching a resin tape, using a tacker, an adhesive, or the like.

[0034] Fig. 7 is a diagram showing examples. As shown in Fig. 7, in Example 1, the flat focusing member had a single-layer structure with a PP substrate layer (thickness: 0.05 mm). The electric wires used were one each of a 0.13 sq insulated electric wire, a 0.35 sq insulated electric wire, a 0.35 sq twisted wire, and a 0.5 sq insulated electric wire. These were fixed to the electric wire placement section using a stapler.

[0035] Example 2 was the same as Example 1 except that the electric wires were fixed with an adhesive. The adhesive was Bond G17 (manufactured by Konishi Co., Ltd.).

[0036] Example 3 was the same as Example 1, except that the electric wires were fixed with tape. The tape used was double-sided tape No. 7021 (0.05 mm thick) manufactured by Teraoka Seisakusho.

[0037] Example 4 was the same as Example 1 except that the thickness of the base layer was 0.3 mm. Example 5 was the same as Example 4 except that the electric wires were fixed with an adhesive. The adhesive was the same as Example 2. Example 6 was the same as Example 4 except that the electric wires were fixed with tape. The tape was the same as Example 3.

[0038] Example 7 was the same as Example 1 except that the thickness of the base layer was 3.0 mm. Example 8 was the same as Example 7 except that the electric wire was fixed with tape. The tape was the same as Example 3.

[0039] The applicant evaluated the bundling, retention, and folding of Examples 1 to 8 described above. Regarding bundling, the presence or absence of protruding wires due to insufficient adhesion of the wires to the flat bundling member, resulting in a portion of the wires separating from the flat bundling member and resulting in a longer length of wires sandwiched between the flat bundling member, was evaluated. Those without protruding wires were evaluated as "Good." Regarding retention, those without falling for 24 hours while the wires were fixed to the flat bundling member from below the horizontally placed flat bundling member were evaluated as "Good." Regarding folding, the applicant evaluated whether the wires were folded into an accordion-like shape at the intended location (the location of the easily folding structure) when force was applied from both ends by hand, as shown in Figure 6(b). Those that were folded at the intended location were evaluated as "Good," and those that were folded at the intended location by making a cut in the easily folding structure were evaluated as "Good."

[0040] As a result, focusing and retention were rated "good" in all Examples 1 to 8. Furthermore, folding was also rated "good" in Examples 1 to 6. For Examples 7 and 8, folding was rated "fair", but this could be addressed by making incisions, so there was no problem with the product. In addition, incisions are also one type of easy-folding structure. However, while an easy-folding structure using incisions is appropriate when the flat focusing member is thick, when it is thin, there is a possibility that the flat focusing member may tear, so fold marks or the other structures described below are preferable.

[0041] In this way, the flat bundling member 10 according to the first embodiment is provided with a plurality of easy-folding structures 11 for folding the sheet into an accordion-like shape, and therefore the sheet can be folded using the easy-folding structures 11 after the electric wires W are placed in the electric wire placement section 12. This reduces the possibility of the sheet being folded in the wrong place. Furthermore, since the folding process can be performed after the electric wires W are placed on the sheet, the number of processes can be reduced even when the electric wires W are placed in multiple layers. Therefore, it is possible to provide a flat bundling member 10 that can further improve workability.

[0042] In addition, it further includes a protective section 13 that is connected to the end-most electric wire placement section 12 and protects the electric wires W, so that it not only bundles the electric wires W into a flat shape but also protects them, and can be used as an exterior material.

[0043] Furthermore, the plurality of easy-folding structures 11 have folds 11a formed in advance by mountain folds or valley folds in order to fold them into an accordion-like shape. Therefore, it is sufficient to form folds 11a in advance in the sheet in accordance with the number and size of the electric wires W to be bundled in a flat shape, and the easy-folding structure 11 can be easily realized and can also be adapted to various modes of flat bundling.

[0044] Furthermore, in the wire harness WH according to the first embodiment, the electric wires W are arranged and fixed in the electric wire arrangement portion 12, and then the protective portions 13 on both end sides are connected to each other. Therefore, the wire harness WH can be bundled flat and is prevented from unraveling.

[0045] Next, a second embodiment of the present invention will be described. The wire harness WH according to the second embodiment is similar to that of the first embodiment, but has a partially different configuration. Only the differences from the first embodiment will be described below. In addition, elements in the second embodiment that are the same as or similar to those in the first embodiment will be assigned the same reference numerals.

[0046] Fig. 8 is a side view showing a flat bundling member used in a wire harness WH according to the second embodiment. As shown in Fig. 8, a flat bundling member 30 used in a wire harness WH according to the second embodiment has an electric wire placement portion 12 and a protective portion 13 formed to be spaced apart from each other. Furthermore, the flat bundling member 30 according to the second embodiment has small holes formed in the electric wire placement portion 12 and the protective portion 13, and is provided with a ring member 31 as an easy-fold structure 11. The ring member 31 connects the electric wire placement portion 12 and the protective portion 13 to each other through the small holes formed in the electric wire placement portion 12 and the protective portion 13.

[0047] Here, the flat bundling member 30 according to the second embodiment is not a sheet that is folded using the fold lines 11a. This makes it easier to form the electric wire placement portion 12 and the protective portion 13 as separate members. As a result, it is possible to make the electric wire placement portion 12 a member that is easy to fix the electric wires to, and the protective portion 13 a member that is highly abrasion resistant, for example.

[0048] Next, a method for manufacturing a wire harness WH according to the second embodiment will be described. In the second embodiment, first, separate sheets corresponding to the electric wire placement portions 12 and the protective portions 13 are prepared. An operator punches small holes in these sheets and connects the electric wire placement portions 12 and the protective portions 13 with ring members 31 through the small holes. Thereafter, as in the first embodiment, in a first step, the electric wires W are fixedly arranged in the electric wire placement portions 12. Next, in a second step, the flat bundling member 30 is folded into an accordion-like shape. At this time, the flat bundling member 30 is folded using the ring shape of the ring member 31, which is the easily foldable structure 11. Thereafter, the protective portions 13 of the flat bundling member 30 are connected to each other using a tacker or the like.

[0049] In this way, according to the flat bundling member 30 and the wire harness WH according to the second embodiment, similarly to the first embodiment, it is possible to provide a flat bundling member 30 that can further improve workability and can be used as an exterior material. In addition, it is possible to provide a wire harness WH that can be bundled flat and is prevented from unraveling.

[0050] Furthermore, according to the second embodiment, the plurality of easily foldable structures 11 have ring members 31 that connect the respective spaced apart electric wire placement portions 12 and protective portions 13. By configuring the easily foldable structure 11 using such ring members 31, the electric wire placement portions 12 and protective portions 13 can be formed spaced apart, and there is no need to fold the sheet itself. This makes it possible, for example, to make the electric wire placement portions 12 a member that easily secures electric wires, and the protective portions 13 a member that is highly abrasion resistant, etc. This makes it possible to achieve a more appropriate bundling structure or protective structure.

[0051] Next, a third embodiment of the present invention will be described. The wire harness WH according to the third embodiment is similar to that of the first embodiment, but has a partially different configuration. Only the differences from the first embodiment will be described below. In addition, elements in the third embodiment that are the same as or similar to those in the first embodiment will be assigned the same reference numerals.

[0052] Fig. 9 is a plan view showing a flat bundling member used in a wire harness WH according to the third embodiment. As shown in Fig. 9, in a flat bundling member 40 used in a wire harness WH according to the third embodiment, filaments 41 such as linear wires are provided as easily foldable structures 11 in advance between the electric wire placement portions 12 and between the electric wire placement portions 12 and the protective portions 13. These filaments 41 are preferably harder than the electric wire placement portions 12 and the protective portions 13. Furthermore, although the filaments 41 are provided so as to be embedded inside the flat bundling member 40 in the third embodiment, they may also be provided on the surface.

[0053] Here, the flat focusing member 40 according to the third embodiment does not require the attachment of the ring member 31. Furthermore, the flat focusing member 40 does not require the fold lines 11a to be formed in advance, and can be stored in a flat state.

[0054] Next, a method for manufacturing a wire harness WH according to a third embodiment will be described. In the third embodiment, as in the first embodiment, first, in a first step, the electric wires W are fixedly arranged in the electric wire arrangement portion 12. Next, in a second step, the flat bundling member 40 is folded in an accordion shape. At this time, since the flat bundling member 40 has the filaments 41, it is easy to bend the flat bundling member 40 starting from the filaments 41, and the flat bundling member 40 is folded near each filament 41. In addition, the flat bundling member 40 may be folded in advance in a mountain fold or a valley fold near the filaments 41 in order to fold it in an accordion shape. Thereafter, the protective portions 13 of the flat bundling member 40 are connected to each other by a tacker or the like.

[0055] In this way, according to the flat bundling member 40 and the wire harness WH according to the third embodiment, similarly to the first embodiment, it is possible to provide a flat bundling member 40 that can further improve workability and can be used as an exterior material. In addition, it is possible to provide a wire harness WH that can be bundled flat and is prevented from unraveling.

[0056] Furthermore, according to the third embodiment, the easy-folding structure 11 has a linear body 41 arranged between the electric wire arrangement sections 12 and between the protective sections 13, making it easy to bend starting from the linear body 41, and making it possible to easily realize the easy-folding structure 11.

[0057] The present invention has been described above based on the embodiments, but the present invention is not limited to the above embodiments, and modifications may be made within the scope of the spirit of the present invention, and if possible, techniques from the embodiments or publicly known or well-known techniques may be combined.

[0058] Fig. 10 is a plan view showing an example of accordion folding of a flat focusing member according to a first modified example. As shown in Fig. 10, the flat focusing member 50 according to the first modified example may be formed longer than the one described above, and may be folded in a direction intersecting both the long and short directions to form an accordion folding. Furthermore, the flat focusing member 50 may have a W-shape in plan view as a result of the accordion folding described above. In other words, it is sufficient that the flat focusing member 50 is folded in an accordion shape when viewed from a specific direction (for example, the direction of arrow Y in Fig. 10).

[0059] Fig. 11 is a plan view showing an example of accordion-folding of a flat focusing member according to the second modified example. As shown in Fig. 11, the flat focusing member 60 according to the second modified example may have curved folds, for example, and may be folded in a curved shape to form an accordion-like shape. Note that when the folds are curved, wrinkles are likely to occur in some parts of the flat focusing member 60. For this reason, a cut may be formed in part of the flat focusing member 60 to prevent wrinkles from occurring.

[0060] In the above embodiment, the wire harness WH may be connected by the connecting and fixing member 20 to the protection portions 13, and then may be entirely wrapped with a resin tape multiple times. [Explanation of symbols]

[0061] 10, 30, 40, 50, 60: Flat focusing member 11:Easy folding structure 11a: Folds 12: Electric wire arrangement section 13:Protective part 31: Ring member 41: Striatum W: Electric wire WH: Wire harness

Claims

1. A flat bundling member configured in a sheet shape for bundling electric wires into a flat shape, a plurality of easy-folding structures for folding the sheet into an accordion-like shape; an electric wire arrangement portion that becomes a flat surface portion when folded into an accordion-like shape by the plurality of easy-folding structures and that is used to arrange electric wires in a flat shape; A flat focusing member comprising:

2. a protection portion connected to the electric wire placement portion that is the endmost portion when the folding structure is folded into an accordion-like shape by the plurality of easy-folding structures, and protecting the electric wires; 10. The flat focusing member of claim 1, further comprising:

3. The plurality of easy-folding structures have fold marks formed by mountain folds or valley folds in advance for folding into an accordion shape.

3. The flat focusing member of claim 2.

4. The plurality of easy folding structures each have a ring member that connects the electric wire placement portion and the protection portion that are formed apart from each other, or that connects the electric wire placement portions that are formed apart from each other.

3. The flat focusing member of claim 2.

5. The plurality of easy folding structures have linear members provided between the electric wire placement portion and the protective portion, and between adjacent electric wire placement portions.

3. The flat focusing member of claim 2.

6. The flat focusing member folded in an accordion shape according to claim 2; an electric wire arranged and fixed in the electric wire arrangement portion of the flat bundling member, The protection portions on both ends of the flat focusing member are connected to each other. A wire harness characterized by:

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