Wiring materials

Abstract

To provide technology which can more firmly fuse and fix a twisted wire to a base member.SOLUTION: A wiring member 10 includes: a twisted wire 20 in which a first linear transmission member 21A and a second linear transmission member 21B are twisted; and a base member 30 in which the twisted wire 20 is fused and fixed. In side-by-side sections 24 in which the first linear transmission member 21A and the second linear transmission member 21B are arranged side by side on the base member 30 in the twisted wire 20, the first linear transmission member 21A and the second linear transmission member 21B are fused to the base member 30 and a side-by-side fused section 50 is formed. Length D1 of a first half period section 28A including the side-by-side fused section 50 is longer than lengths D2R and D2L of second half period sections 28B adjacent to the first half period section 28A.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a wiring member. [Background technology]

[0002] Patent Document 1 discloses a wiring member in which a wire assembly in which a plurality of linear transmission members are bundled together is fixed to a base member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-36523 Summary of the Invention [Problem to be solved by the invention]

[0004] It is desired that the twisted wires be more firmly fused and fixed to the base member.

[0005] Therefore, an object of the present invention is to provide a technique that can more firmly fuse and fix the twisted wire to the base member. [Means for solving the problem]

[0006] The wiring member of the present disclosure comprises a twisted wire in which a first linear transmission member and a second linear transmission member are twisted together, and a base member to which the twisted wire is fused and fixed; when the portion of the twisted wire in which the first linear transmission member and the second linear transmission member are arranged horizontally on the base member is considered a horizontally arranged portion, and the portion in which they are arranged vertically is considered a vertically arranged portion, the horizontally arranged portions and the vertically arranged portions extend alternately along the extension direction of the twisted wire, the space between two consecutive vertically arranged portions is considered to be a half-period section of the twist in the twisted wire, in the horizontally arranged portion, the first linear transmission member and the second linear transmission member are each fused to the base member to form a horizontally fused portion, and the length of the first half-period section including the horizontally fused portion is longer than the length of a second half-period section adjacent to the first half-period section. [Effects of the Invention]

[0007] According to the present disclosure, the twisted wire can be more firmly fused and fixed to the base member. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view showing the wiring member according to the first embodiment. [Figure 2] FIG. 2 is a partially enlarged view of FIG. [Figure 3] FIG. 3 is a side view showing the wiring member according to the first embodiment. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Figure 5] FIG. 5 is an explanatory diagram showing a preparation step for fusing the twisted wires. [Figure 6] FIG. 6 is an explanatory diagram showing the fusion process of the twisted wires. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described.

[0010] The wiring member of the present disclosure is as follows.

[0011] (1) A wiring member comprising: a twisted wire in which a first linear transmission member and a second linear transmission member are twisted together; and a base member to which the twisted wire is fused and fixed; when the portion of the twisted wire in which the first linear transmission member and the second linear transmission member are arranged horizontally on the base member is a horizontally arranged portion, and the portion in which they are arranged vertically is a vertically arranged portion, the horizontally arranged portions and the vertically arranged portions extend alternately along the extension direction of the twisted wire; the space between two consecutive vertically arranged portions is a half-period section of the twist in the twisted wire; in the horizontally arranged portions, the first linear transmission member and the second linear transmission member are each fused to the base member to form a horizontally fused portion; and the length of a first half-period section including the horizontally fused portion is longer than the length of a second half-period section adjacent to the first half-period section. The length of the first half-period section including the side-by-side fused portion is longer than the length of the second half-period section adjacent to the first half-period section, which makes it easier to lengthen the side-by-side fused portion, thereby more firmly fusion-fixing the twisted wire to the base member.

[0012] (2) In the wiring member of (1), the first linear transmission member and the second linear transmission member may be spaced apart in the parallel direction in the horizontally fused portion, which prevents the first linear transmission member and the second linear transmission member from overlapping each other during fusion, and allows each of the first linear transmission member and the second linear transmission member to be more firmly fused and fixed to the base member.

[0013] (3) In the wiring member of (1) or (2), the first linear transmission member and the second linear transmission member may extend parallel to each other in a straight line in the horizontally fused portion, which makes it easier for the first linear transmission member and the second linear transmission member to be firmly fused to the base member in the horizontally fused portion, thereby enabling the twisted wires to be more firmly fused and fixed to the base member.

[0014] (4) In any one of the wiring members (1) to (3), the first linear transmission member and the second linear transmission member may be disposed on the base member but not fused to the base member during the second half-period section. This simplifies the fusion process by fusion-bonding only a portion of the horizontally aligned portions of the twisted wire to the base member. Even in this case, the horizontally fused portions can be lengthened, allowing the twisted wire to be more firmly fused and fixed to the base member.

[0015] (5) In any one of the wiring members (1) to (4), the length of the fused portion of the first linear transmission member in the horizontally fused portion may be longer than the width of the first linear transmission member, and the length of the fused portion of the second linear transmission member in the horizontally fused portion may be longer than the width of the second linear transmission member. This allows the twisted wires to be more firmly fused and fixed to the base member.

[0016] [Details of the embodiments of the present disclosure] Specific examples of wiring members according to the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0017] [Embodiment 1] The wiring member according to the first embodiment will be described below. In the drawings, for ease of explanation, some of the components may be exaggerated or simplified. Furthermore, the dimensional ratios of the various parts may differ between the drawings. Furthermore, in this specification, "perpendicular" does not only mean a strictly perpendicular state, but also includes a roughly perpendicular state. For example, roughly perpendicular means a state in which the angle between two directions is 80 degrees or more and less than 90 degrees, preferably 85 degrees or more and less than 90 degrees. Furthermore, in this specification, "parallel" does not only mean a strictly parallel state, but also includes a roughly parallel state. For example, roughly parallel means a state in which the angle between two directions is 10 degrees or less, preferably 5 degrees or less.

[0018] Fig. 1 is a plan view showing a wiring member 10 according to embodiment 1. Fig. 2 is a partially enlarged view of Fig. 1. Fig. 3 is a side view showing the wiring member 10 according to embodiment 1. Fig. 3 shows the wiring member 10 in the same range as Fig. 2. Fig. 4 is a cross-sectional view taken along line IV-IV in Fig. 2.

[0019] The wiring member 10 includes a twisted wire 20 and a base member 30. The wiring member 10 further includes an additional linear transmission member 40. The twisted wire 20 and the additional linear transmission member 40 are fused to the base member 30.

[0020] The twisted wire 20 includes a first linear transmission member 21A and a second linear transmission member 21B. The first linear transmission member 21A and the second linear transmission member 21B are twisted together. The first linear transmission member 21A and the second linear transmission member 21B are the same type of linear transmission member. When it is not necessary to distinguish between the first linear transmission member 21A and the second linear transmission member 21B, the first linear transmission member 21A and the second linear transmission member 21B may be collectively referred to as the linear transmission member 21.

[0021] The linear transmission member 21 may be any linear member that transmits electricity, light, or the like. For example, the linear transmission member 21 may be a general electric wire having a core wire and a coating surrounding the core wire, or may be a shielded wire, an enameled wire, a nichrome wire, an optical fiber, or the like. The linear transmission member that transmits electricity may be any of various signal lines and various power lines. The linear transmission member that transmits electricity may be used as an antenna, a coil, or the like that sends or receives signals or power to or from space.

[0022] The linear transmission member 21 has a transmission line body 22 and a covering layer 23 that covers the transmission line body. Here, the linear transmission member 21 will be described as being a general electric wire 21 (hereinafter simply referred to as electric wire 21). The electric wire 21 has a core wire 22 as the transmission line body 22 and an insulating covering 23 as the covering layer 23 that covers the core wire 22. All descriptions regarding the electric wire 21 are applicable to the linear transmission member 21, except for configurations that are not applicable.

[0023] The core wire 22 is composed of one or more element wires. The element wires are made of a conductor such as copper, copper alloy, aluminum, or aluminum alloy. When the core wire 22 is composed of multiple element wires, the multiple element wires may be twisted together. The insulating coating 23 is formed by extrusion molding a resin material such as PVC (polyvinyl chloride) or PE (polyethylene) around the core wire 22. Here, the electric wire 21 is a so-called round electric wire having a circular cross section.

[0024] At least a portion of the twisted wire 20 is disposed on the base member 30. Here, a portion including the middle portion of the twisted wire 20 is disposed on the base member 30. The ends of the twisted wire 20 extend from the ends of the base member 30 to the outside of the base member 30.

[0025] The base member 30 is a member on whose main surface 32 the twisted wire 20 is fused and fixed. By fusion-fixing the twisted wire 20 onto the main surface 32, the twisted wire 20 is held along a predetermined path on the main surface 32. In other words, the base member 30 can be said to be a member having a main surface 32 that holds the twisted wire 20 along a predetermined path. The base member 30 may be any member having a main surface 32 for fusion-fixing the twisted wire 20 as described above, and may be formed in a sheet shape or a three-dimensional shape.

[0026] Here, the base member 30 may be described as a member having a flat portion, more specifically, as a bendable sheet member 30. Each description regarding the sheet member 30 is applicable to the base member 30, except for configurations in which it is not applicable.

[0027] The material constituting the sheet member 30 is not particularly limited, but the sheet member 30 is preferably formed from a material containing a resin such as PVC (polyvinyl chloride), PET (polyethylene terephthalate), or PP (polypropylene). The sheet member 30 may be a sheet material with a uniformly filled interior, or may be a nonwoven sheet, etc. The sheet member 30 may also contain a material such as metal. The sheet member 30 preferably has flexibility that allows it to be easily bent in the thickness direction. The sheet member 30 may be a single layer or may be a multi-layer laminate. When a multi-layer laminate is used, for example, a resin layer may be laminated on another resin layer. Another example is a resin layer and a metal layer.

[0028] In this embodiment, an additional linear transmission member 40 is fixed to the main surface 32 in addition to the twisted wire 20. The additional linear transmission member 40 may be a linear member that transmits electricity, light, etc., similar to the linear transmission member 21, or may be a member similar to the twisted wire 20. Here, the additional linear transmission member 40 will be described as a general electric wire 40 (hereinafter simply referred to as electric wire 40) having a core wire 41 and an insulating coating 42. All descriptions regarding the electric wire 40 are applicable to the additional linear transmission member 40, except for configurations in which they are not applicable. Multiple additional linear transmission members 40 may be fixed to the main surface 32, or they may be omitted.

[0029] The electric wire 40 is also fused and fixed onto the main surface 32. The portion where the electric wire 40 is fused and fixed onto the main surface 32 is a fused portion 54. Here, the electric wire 40 is fixed to the main surface 32 in parallel with the twisted wire 20. The electric wire 40 and the twisted wire 20 may branch off midway and be fixed along different paths. The entire electric wire 40 and the entire twisted wire 20 may be fixed along different paths on the main surface 32.

[0030] Assuming that the twisted wires 20 and the electric wires 40 are fixed on the main surface 32, the base member 30 can be considered to be a member that keeps at least one twisted wire 20 and at least one electric wire 40 (additional linear transmission member 40) in a flat state on the main surface 32. Furthermore, it is assumed that the base member 30 has a flat portion, and that at least one twisted wire 20 and at least one electric wire 40 (additional linear transmission member 40) are fixed on the main surface 32 of the flat portion. In this case, the wiring member 10 can be considered to be a wiring member 10 that has a flat portion that keeps the twisted wires 20 and the electric wires 40 (additional linear transmission member 40) in a flat state. Furthermore, it is assumed that the base member 30 is a bendable sheet member 30. In this case, the wiring member 10 can be considered to be a flat wiring member 10 that keeps the twisted wire 20 and the electric wire 40 (additional linear transmission member 40) in a flat state, and also a wiring member 10 that can be deformed according to the surface shape to which it is to be arranged.

[0031] The twisted wire 20 extends while the positional relationship between the first electric wire 21A and the second electric wire 21B changes along the extension direction. When the portion of the twisted wire 20 disposed on the main surface 32 of the sheet member 30 is observed from a direction perpendicular to the main surface 32, horizontally arranged portions 24 and vertically arranged portions 25 appear alternately along the extension direction of the twisted wire 20. The horizontally arranged portions 24 are portions where the first electric wire 21A and the second electric wire 21B are arranged in parallel on the sheet member 30. The vertically arranged portions 25 are portions where the first electric wire 21A and the second electric wire 21B are arranged vertically so as to be stacked on top of each other on the main surface 32 of the sheet member 30. The portion between the horizontally arranged portions 24 and the vertically arranged portions 25 can be considered to be a shift portion 26 for changing the positional relationship of the electric wires 21.

[0032] In two consecutive horizontally arranged portions 24, the positions of the first electric wire 21A and the second electric wire 21B are swapped horizontally. Similarly, in two consecutive vertically arranged portions 25, the positions of the first electric wire 21A and the second electric wire 21B are swapped vertically. In a certain vertically arranged portion 25 and in a vertically arranged portion 25 extending from the certain vertically arranged portion 25 through a horizontally arranged portion 24, a vertically arranged portion 25, and another horizontally arranged portion 24, the positions of the first electric wire 21A and the second electric wire 21B are the same, and this interval corresponds to one twisting cycle of the twisted wire 20. Here, in the twisted wire 20, the interval between three consecutive vertically arranged portions 25 corresponds to one twisting cycle, and the interval between two consecutive vertically arranged portions 25 corresponds to a half twisting cycle.

[0033] In the horizontally arranged portion 24, the first electric wire 21A and the second electric wire 21B are arranged horizontally on the main surface 32, and therefore the first electric wire 21A and the second electric wire 21B are present in positions where they can come into contact with the main surface 32 of the sheet member 30. In the horizontally arranged portion 24, the horizontally arranged first electric wire 21A and the second electric wire 21B are fusion-fixed to the sheet member 30, thereby forming a horizontally arranged fusion-bonded portion 50. In the horizontally arranged portion 24, the first electric wire 21A and the second electric wire 21B are arranged horizontally, and therefore they can come into stable contact with the main surface 32 of the sheet member 30. Therefore, the first electric wire 21A and the second electric wire 21B can be stably fusion-fixed to the main surface 32 of the sheet member 30 easily.

[0034] In the side-by-side fused portion 50, the portion where the first electric wire 21A and the sheet member 30 are fused may be referred to as the first fused portion 51, and the portion where the second electric wire 21B and the sheet member 30 are fused may be referred to as the second fused portion 52. The side-by-side fused portion 50 may also be considered to have the first fused portion 51 and the second fused portion 52. The first fused portion 51 and the second fused portion 52 are usually the same length. The first fused portion 51 and the second fused portion 52 may be slightly different lengths.

[0035] A plurality of the horizontally arranged portions 24 are provided linearly aligned at intervals in the extension direction of the twisted wire 20. A horizontally fused portion 50 may be formed in only one of the plurality of horizontally arranged portions 24, or a plurality of the plurality of horizontally arranged portions 24 may be provided with a horizontally fused portion 50. In the latter case, the horizontally fused portions 50 may be provided continuously with respect to the plurality of horizontally arranged portions 24 without any intervening positions where a horizontally fused portion 50 is not provided, or a horizontally fused portion 50 may be provided for each of the plurality of horizontally arranged portions 24. Here, as shown in FIG. 1 , a horizontally fused portion 50 is provided in a plurality of horizontally arranged portions 24 that are not continuous with each other.

[0036] The half-period section including the horizontally fused portion 50 is referred to as the first half-period section 28A. The half-period section adjacent to the first half-period section 28A is referred to as the second half-period section 28B, and the following are referred to as the third half-period section 28C and the fourth half-period section 28D as they move away from the first half-period section 28A. The second half-period section 28B, the third half-period section 28C, and the fourth half-period section 28D are usually located on both sides of the first half-period section 28A. Note that when the first half-period section 28A is located at the end of the sheet member 30 and the end of the twisted wire 20 is located near the end of the sheet member 30, the second half-period section 28B, the third half-period section 28C, and the fourth half-period section 28D may not be located on the end side of the twisted wire 20.

[0037] Here, in each of the two second half period sections 28B on one side and the other side of the first half period section 28A, the first linear transmission member 21A and the second linear transmission member 21B are disposed on the base member 30 but are not fused to the base member 30. Similarly, in the third half period section 28C and the fourth half period section 28D on one side of the first half period section 28A, the first linear transmission member 21A and the second linear transmission member 21B are disposed on the base member 30 but are not fused to the base member 30.

[0038] 2 and 3, dimension D1 is the length of the first half period section 28A. Dimensions D2L and D2R are the length of the second half period section 28B. Dimensions D3L and D3R are the length of the third half period section 28C. Dimension D4R is the length of the fourth half period section 28D. Note that the symbols L and R in the length of the second half period section 28B indicate whether the second half period section 28B is on one side or the other side of the first half period section 28A. The same is true for the third half period section 28C and the fourth half period section 28D.

[0039] The length D1 of the first half period section 28A is longer than the lengths D2R, D2L of the second half period section 28B. Here, the length D1 of the first half period section 28A is longer than the lengths D2R, D2L of the two second half period sections 28B on one side and the other side of the first half period section 28A. It is sufficient that the length D1 of the first half period section 28A is longer than at least one of the lengths D2R, D2L of the two second half period sections 28B on one side and the other side of the first half period section 28A.

[0040] Here, the length D1 of the first half period section 28A is longer than the lengths D3R, D3L of the third half period section 28C. Here, the length D1 of the first half period section 28A is longer than the lengths D3R, D3L of the two third half period sections 28C on one side and the other side of the first half period section 28A. It is sufficient that the length D1 of the first half period section 28A is longer than at least one of the lengths D3R, D3L of the two third half period sections 28C on one side and the other side of the first half period section 28A.

[0041] Here, the length D1 of the first half period section 28A is longer than the length of the fourth half period section 28D. Here, the length D1 of the first half period section 28A is longer than the length D4R of the fourth half period section 28D on one side of the first half period section 28A. The length of the first half period section 28A may also be longer than the length of the fourth half period section 28D on the other side of the first half period section 28A.

[0042] Here, the lengths D2R and D2L of the second half period section 28B are shorter than the lengths D3R and D3L of the third half period section 28C. This is because the lengths D2R and D2L of the second half period section 28B are shortened by the amount that the length D1 of the first half period section 28A is increased. The lengths D2R and D2L of the second half period section 28B may be the same as the lengths D3R and D3L of the third half period section 28C. For example, by untwisting the twisted wire 20, even if the length D1 of the first half period section 28A is increased, the lengths D2R and D2L of the second half period section 28B can be prevented from becoming shorter.

[0043] The length D1 of the first half-cycle section 28A may be longer than the average length of all half-cycle sections in the twisted wire 20. The average length of all half-cycle sections in the twisted wire 20 is close to half the twist pitch (the length of one cycle section) (hereinafter referred to as half pitch) set during the manufacture of the twisted wire 20. This twist pitch is not particularly limited, but may be, for example, 25 mm to 40 mm.

[0044] The length D1 of the first half period section 28A may be three times or less, twice or less, or 1.5 times or less the lengths D2R and D2L of the second half period section 28B. Furthermore, the length D1 of the first half period section 28A may be three times or less, twice or less, or 1.5 times or less the half pitch. For example, the length D1 of the first half period section 28A may be 1.2 times the half pitch. By ensuring that the length D1 of the first half period section 28A is not too long, the noise resistance required of the twisted wire 20 can be ensured.

[0045] 2, here, in the horizontally fused portion 50, the first linear transmission member 21A and the second linear transmission member 21B extend parallel to each other in a straight line. The horizontally fused portion 24 in the first half-period section 28A is closer to a straight line than the horizontally fused portion 24 in the second half-period section 28B. In the horizontally fused portion 50, the length over which the first linear transmission member 21A contacts the base member 30 and the length over which the second linear transmission member 21B contacts the base member 30 are longer.

[0046] The symbols L and R in the lengths of the second half period sections 28B indicate which second half period sections 28B are on one side and which on the other side of the first half period section 28A. The same is true for the third half period section 28C and the fourth half period section 28D.

[0047] As shown in FIG. 4, here, the first linear transmission member 21A and the second linear transmission member 21B are spaced apart in the parallel direction at the side-by-side fused portion 50. In FIG. 4, dimension L1 is the distance between the first linear transmission member 21A and the second linear transmission member 21B. Note that in FIG. 4, dimension L2 is the width dimension (here, diameter) of the electric wire 21. Dimension L3 is the distance between the twisted wire 20 and the electric wire 40. Dimension L4 is the distance between the electric wires 40. For example, dimension L1 may be equal to or less than dimension L2. Dimension L1 may be equal to or less than dimension L3. Dimension L1 may be equal to or less than dimension L4.

[0048] In the horizontally arranged portion 24 where the horizontally arranged fused portion 50 is not provided, the first electric wire 21A and the second electric wire 21B may or may not be in contact with each other.

[0049] 3, dimension WD1 is the length of the fused portion of the electric wire 21 in the horizontal fused portion 50. The length WD1 of the fused portions 51, 52 of the electric wire 21 in the horizontal fused portion 50 is longer than the width L2 of the electric wire 21. The length of the fused portion of the first electric wire 21A in the horizontal fused portion 50 is the same as the length of the fused portion of the second electric wire 21B. The length of the fused portions 51, 52 of the electric wire 21 may be longer than the length of the fused portion 54 of the electric wire 40.

[0050] To form the fused and fixed state in the side-by-side fused portion 50, various fusion means can be used, such as ultrasonic fusion, heat and pressure fusion, hot air fusion, and high-frequency fusion. Furthermore, when a fused and fixed state is formed by these means, the electric wires 21 and the sheet member 30 are fused and fixed by that means. Specifically, for example, when a fused and fixed state is formed by ultrasonic fusion, the electric wires 21 and the sheet member 30 are fused and fixed by ultrasonic fusion. The portion where the fused and fixed state is formed (the fixed portion between the electric wires 21 and the sheet member 30) may be referred to as a fused portion, and the portion fixed by ultrasonic fusion may be referred to as an ultrasonic fused portion, the portion fixed by heat and pressure fusion may be referred to as a heat and pressure fused portion, etc.

[0051] In the fusion fixing, only the resin contained in the coating of the electric wire 21 may be melted, or only the resin contained in the sheet member 30 may be melted. In these cases, the melted resin may be stuck to the outer surface of the other, forming a relatively clear interface. In addition, in the fusion fixing, both the resin contained in the coating of the electric wire 21 and the resin contained in the sheet member 30 may be melted. In this case, the two resins may be mixed together and no clear interface may be formed. In particular, when the coating of the electric wire 21 and the sheet member 30 contain resins that are easily miscible with each other, such as the same resin material, the two resins may be mixed together and no clear interface may be formed.

[0052] Here, the description will be made assuming that the electric wire 21 and the sheet member 30 are ultrasonically fused together. The descriptions regarding the fixing of the electric wire 21 and the sheet member 30 are also applicable to the various fusion fixing methods described above, unless the configuration is inapplicable.

[0053] The fixing structure of the electric wire 40 may be the same as that for fixing the twisted wire 20 to the sheet member 30, and may be, for example, fixed by ultrasonic welding.

[0054] 2, a connecting member 60 such as an electrical connector or an optical connector may be provided at the end of the twisted wire 20 or the end of the electric wire 40. By connecting the wiring member 10 to an electrical component or an optical component via the connecting member 60, the wiring member 10 becomes a wiring member 10 that connects a plurality of electrical components together or optical components together.

[0055] <Manufacturing method> Fig. 5 is an explanatory diagram showing a preparation step for fusing the twisted wire 20. Fig. 6 is an explanatory diagram showing a fusing step for the twisted wire 20.

[0056] Here, an example will be described in which the twisted wire 20 is ultrasonically fused to the base member 30 by an ultrasonic fusion machine 80. The ultrasonic fusion machine 80 has a horn 82 and an anvil 84. The twisted wire 20 is held by the anvil 84.

[0057] In Figure 5, the twisted wire 20 shown by the solid line is the twisted wire 20 before fusion. The twisted wire 20 before fusion is continuous at a uniform pitch. In Figure 5, the area shown by the two-dot chain circle indicates the portion 27 of the twisted wire 20 that is to be fused. The portion 27 is held by the anvil 84. In Figure 5, the twisted wire 20 shown by the two-dot chain line is shown in a state where it is held by the anvil 84.

[0058] Two grooves 85 are formed in the anvil 84. The two grooves 85 are separated by a partition 86. The first electric wire 21A and the second electric wire 21B are held separately in the two grooves 85. At this time, the length dimension of the groove 85 is longer than the length dimension of the horizontally arranged portions 24 in the portion to be fused 27. Therefore, the twisted wire 20 is held on the anvil 84 with the length dimension of the horizontally arranged portions 24 in the portion to be fused 27 increased. At this time, a part of the twisted wire 20 that will become the portion to be fused 27 may be untwisted. This prevents the half-cycle section adjacent to the portion to be fused 27 from becoming shorter.

[0059] Once the first electric wire 21A and the second electric wire 21B are held by the anvil 84, the sheet member 30 is placed as shown in Fig. 6. The sheet member 30 is placed so as to cover the first electric wire 21A and the second electric wire 21B. Then, a horn 82 is placed on the outside of the sheet member 30, and ultrasonic vibration energy is applied to the contact portion between the sheet member 30 and the electric wires 21 via the horn 82. As a result, the contact portion between the sheet member 30 and the electric wires 21 is fused.

[0060] By fusing the first electric wire 21A and the second electric wire 21B to the sheet member 30 while they are held by the anvil 84, the first electric wire 21A and the second electric wire 21B can be fused to the sheet member 30 by a length corresponding to the length of the first electric wire 21A and the second electric wire 21B held by the anvil 84. This allows the length of the first half-cycle section 28A including the side-by-side fused portion 50 to be longer than the length of the second half-cycle section 28B. Furthermore, the first electric wire 21A and the second electric wire 21B are fused to the sheet while being spaced apart in the parallel direction. Furthermore, the first electric wire 21A and the second electric wire 21B are fused to the sheet in a linear, parallel manner.

[0061] When a plurality of laterally fused portions 50 are provided, ultrasonic welding may be performed on each of the plurality of laterally fused portions 24 to form a single laterally fused portion 50. Alternatively, a horn 82 or anvil 84 having a plurality of pressure portions protruding at intervals that are an integer multiple of the pitch of the laterally fused portions 24 may be used to ultrasonically weld a plurality of laterally fused portions 24 at once to simultaneously form a plurality of laterally fused portions 50. Alternatively, at least one of the horn 82 and the anvil 84 may be moved along the twist line 20 to apply pressure and ultrasonic vibration energy to the horn 82 and the anvil 84 at the target laterally fused portions 24, thereby forming a plurality of laterally fused portions 50 sequentially.

[0062] <Effects, etc.> In the wiring member 10 configured in this manner, the length D1 of the first half-period section 28A including the side-by-side fused portion 50 is longer than the lengths D2R, D2L of the second half-period section 28B adjacent to the first half-period section 28A, making it easy to lengthen the side-by-side fused portion 50. This allows the twisted wire 20 to be fused and fixed to the base member 30 more firmly.

[0063] Furthermore, the first linear transmission member 21A and the second linear transmission member 21B are spaced apart in the parallel direction at the horizontally fused portion 50. This prevents the first linear transmission member 21A and the second linear transmission member 21B from overlapping each other during fusion, allowing the first linear transmission member 21A and the second linear transmission member 21B to be more firmly fused and fixed to the base member 30.

[0064] Furthermore, the first linear transmission member 21A and the second linear transmission member 21B extend linearly and parallel to each other in the horizontally fused portion 50. This makes it easier for the first linear transmission member 21A and the second linear transmission member 21B to be firmly fused to the base member 30 in the horizontally fused portion 50, and the twisted wires 20 can be more firmly fused and fixed to the base member 30.

[0065] Additionally, in the second half-cycle section 28B, the first linear transmission member 21A and the second linear transmission member 21B are disposed on the base member 30 but are not fused to the base member 30. This simplifies the fusion process by fusion-bonding some of the multiple horizontally aligned portions 24 of the twisted wire 20 to the base member 30. Even in this case, the horizontally fused portions 50 can be lengthened, so that the twisted wire 20 can be fused and fixed to the base member 30 more firmly.

[0066] Furthermore, the length of the fused portion of the first linear transmission member 21A in the horizontally fused portion 50 is longer than the width of the first linear transmission member 21A. The length of the fused portion of the second linear transmission member 21B in the horizontally fused portion 50 is longer than the width of the second linear transmission member 21B. This allows the twisted wires 20 to be fused and fixed to the base member 30 more firmly.

[0067] [Note] Up to now, in the horizontally fused portion 50, the first linear transmission member 21A and the second linear transmission member 21B have been described as being spaced apart in the parallel direction, but this is not a necessary configuration. In the horizontally fused portion 50, the first linear transmission member 21A and the second linear transmission member 21B may be in contact with each other in the parallel direction.

[0068] Furthermore, although the first linear transmission member 21A and the second linear transmission member 21B have been described as extending linearly and parallel to each other in the horizontally fused portion 50, this is not a necessary configuration. For example, the first linear transmission member 21A and the second linear transmission member 21B may extend in different directions in the horizontally fused portion 50.

[0069] Furthermore, up to this point, it has been described that in the second half period section 28B, the first linear transmission member 21A and the second linear transmission member 21B are disposed on the base member 30 but are not fused to the base member 30, but this is not an essential configuration. In the second half period section 28B as well, the first linear transmission member 21A and the second linear transmission member 21B may be fused to the base member 30. Even in this case, by providing the first half period section 28A, which has a long half period section, it is possible to provide a section in which the horizontally fused portion 50 is long.

[0070] Furthermore, although it has been described above that the length of the fused portion of the first linear transmission member 21A in the horizontally fused portion 50 is longer than the width of the first linear transmission member 21A and that the length of the fused portion of the second linear transmission member 21B in the horizontally fused portion 50 is longer than the width of the second linear transmission member 21B, this is not a required configuration. For example, the length of the fused portion of the first linear transmission member 21A in the horizontally fused portion 50 may be the same as or shorter than the width of the first linear transmission member 21A. For example, the length of the fused portion of the second linear transmission member 21B in the horizontally fused portion 50 may be the same as or shorter than the width of the second linear transmission member 21B.

[0071] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually contradictory. [Explanation of symbols]

[0072] 10 Wiring materials 20 twisted wire 21 Electric wire (linear transmission component) 21A First electric wire (first linear transmission member) 21B second electric wire (second linear transmission member) 22 Core wire (transmission line body) 23 Insulation coating (coating layer) 24 Side-by-side section 25 Vertically aligned part 26 Shift part 27 Part to be fused 28A First half-cycle section 28B Second half-cycle section 28C Third half-cycle section 28D 4th half-cycle section 30 Sheet member (base member) 32 Main Surface 40 Electric wire (additional linear transmission element) 41 Core Wire 42 Insulation coating 50 Side-by-side fused part 51 1st fusion part 52 Second fusion part 54 Fusion part 60 Connecting member 80 Ultrasonic fusion machine 82 Horn 84 Anvil 85 Groove 86 Partition

Claims

1. a twisted wire in which a first linear transmission member and a second linear transmission member are twisted together; a base member to which the twisted wires are fused and fixed; Equipped with When the portion of the twisted wire where the first linear transmission member and the second linear transmission member are arranged horizontally on the base member is a horizontally arranged portion, and the portion where they are arranged vertically is a vertically arranged portion, the horizontally arranged portions and the vertically arranged portions extend alternately along the extension direction of the twisted wire, A space between two consecutive vertically arranged portions is a half-cycle section of the twist of the twisted wire, In the vertically arranged portion, the first linear transmission member and the second linear transmission member are not fused to the base member, In the horizontally arranged portion, the first linear transmission member and the second linear transmission member are fused to the base member, respectively, to form a horizontally arranged fused portion, A wiring member, wherein the length of a first half period section including the side-by-side fused portion is longer than the length of a second half period section adjacent to the first half period section.

2. The wiring member according to claim 1, A wiring member, wherein the first linear transmission member and the second linear transmission member are spaced apart in the parallel direction in the side-by-side fused portion.

3. The wiring member according to claim 1 or 2, In the horizontally fused portion, the first linear transmission member and the second linear transmission member extend linearly and parallel to each other.

4. The wiring member according to any one of claims 1 to 3, a wiring member, wherein the first linear transmission member and the second linear transmission member are disposed on the base member but are not fused to the base member in the second half period section;

5. The wiring member according to any one of claims 1 to 4, a length dimension of the fused portion of the first linear transmission member in the horizontally fused portion is longer than a width dimension of the first linear transmission member; A wiring member, wherein the length of the fused portion of the second linear transmission member in the horizontally fused portion is longer than the width of the second linear transmission member.

Images