Wiring member and producing method of wiring member

Abstract

To provide a technology that makes a linear transmission member difficult to be peeled from a base material.SOLUTION: A wiring member 10 includes a base member 20 and a linear transmission member 30 that is fixed at a contact point on the base member 20. In a single fixing portion 40, which is a fixing portion 40 between the base member 20 and the linear transmission member 30 and extends continuously along the extending direction of the linear transmission member 30, parts located at both ends along the extending direction are end fixing parts 41, and the part positioned between the end fixing parts 41 at both ends is an intermediate fixing part 42. The bonding strength of the end fixing parts 41 is greater than that of the intermediate fixing part 42.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a wiring member and a method for manufacturing the wiring member.

Background Art

[0002] Patent Document 1 discloses a wire harness in which an electric wire is welded to a functional exterior member formed in a sheet shape.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] It is desired that the electric wire is difficult to be peeled off from the exterior member.

[0005] Therefore, an object is to provide a technique for making a linear transmission member difficult to be peeled off from a base member.

Means for Solving the Problems

[0006] The wiring member of the present disclosure includes a base member and a linear transmission member fixed to a contact portion of the base member, and at a fixing portion between the base member and the linear transmission member, in one continuous fixing portion along the extending direction of the linear transmission member, portions located at both ends along the extending direction are end fixing portions, a portion located between the end fixing portions at both ends is an intermediate fixing portion, and the fixing force of the end fixing portion is greater than the fixing force of the intermediate fixing portion.

Effects of the Invention

[0007] According to the present disclosure, the linear transmission member can be made difficult to be peeled off from the base member.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

BEST MODE FOR CARRYING OUT THE INVENTION

[0009] [Description of 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 base member and a linear transmission member fixed to a contact portion of the base member, wherein in one fixing portion that is a fixing portion between the base member and the linear transmission member and is continuous along the extending direction of the linear transmission member, portions located at both ends along the extending direction are end fixing portions, a portion located between the end fixing portions at both ends is an intermediate fixing portion, and an adhesive force of the end fixing portion is greater than an adhesive force of the intermediate fixing portion.

[0012] According to the wiring member of (1), when the linear transmission member is peeled off from the base member, it is usually easy to peel off from the end fixing portion located at the end of the fixing portion. Since the adhesive force of the end fixing portion is greater than the adhesive force of the intermediate fixing portion, it becomes difficult for the linear transmission member to be peeled off from the base member.

[0013] (2) In the wiring member of (1), a plurality of the linear transmission members are arranged in parallel, and at the fixing portions of each of the plurality of the linear transmission members, the adhesive force of the end fixing portion may be greater than the adhesive force of the intermediate fixing portion. Thereby, each of the plurality of linear transmission members becomes difficult to be peeled off from the base member.

[0014] (3) In the wiring member of (2), the end fixing portions at the plurality of the fixing portions may be adjacent to each other and the intermediate fixing portions may be adjacent to each other. Thereby, while providing a plurality of fixing portions together at once, the adhesive force of the end fixing portion can be made greater than the adhesive force of the intermediate fixing portion in each fixing portion.

[0015] (4) Further, the manufacturing method of the wiring member of the present disclosure includes an arranging step of arranging a linear transmission member on a base member, and a fixing step of fixing the linear transmission member to the base member at a contact portion to form a fixing portion. In one fixing portion continuous along the extending direction of the linear transmission member, portions located at both ends along the extending direction are the end fixing portions, and a portion located between the end fixing portions at both ends is the intermediate fixing portion. In the fixing step, the wiring member manufacturing method is to fix so that the adhesive force of the end fixing portion is greater than the adhesive force of the intermediate fixing portion. When the linear transmission member is peeled off from the base member, usually, it is easy to peel off from the end fixing portion located at the end of the fixing portion. Since the adhesive force of the end fixing portion is greater than the adhesive force of the intermediate fixing portion, the linear transmission member becomes difficult to be peeled off from the base member.

[0016] (5) In the manufacturing method of the wiring member of (4), in the fixing step, by making the force for sandwiching the portion that becomes the end fixing portion greater than the force for sandwiching the portion that becomes the intermediate fixing portion, the wiring member may be fixed so that the adhesive force of the end fixing portion is greater than the adhesive force of the intermediate fixing portion. Thereby, it is possible to simply implement fixing so that the adhesive force of the end fixing portion is greater than the adhesive force of the intermediate fixing portion.

[0017] [Details of Embodiments of the Present Disclosure] Specific examples of the wiring member and the manufacturing method of the wiring member of 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 equivalent to the claims.

[0018] [Embodiment 1] Hereinafter, the wiring member and the manufacturing method of the wiring member according to Embodiment 1 will be described. FIG. 1 is a plan view showing a wiring member 10 according to Embodiment 1. FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1. FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1.

[0019] The wiring member 10 includes a base member 20 and a linear transmission member 30. The linear transmission member 30 is fixed on the base member 20. Thereby, the portion of the linear transmission member 30 disposed on the base member 20 is held along a predetermined path. Here, a plurality of linear transmission members 30 are arranged in parallel on the base member 20. The paths of the plurality of linear transmission members 30 are held by the base member 20.

[0020] The base member 20 has a main surface. The linear transmission member 30 is disposed and fixed on the main surface. The main surface may be a flat surface, a curved surface, or an uneven surface. The main surface may be a composite surface having a flat surface and other curved surfaces or the like. The base member 20 may be any member having a main surface for fixing the linear transmission member 30, and may be formed in a sheet shape or a three-dimensional shape. Here, the base member 20 is described as being a sheet member formed in an overall flat shape. By fixing a plurality of linear transmission members 30 to the flat sheet member, the wiring member 10 is maintained in a flat form.

[0021] The base member 20 has flexibility that allows it to easily bend in the thickness direction. The wiring member 10 including the base member 20 and the linear transmission member 30 has flexibility that allows it to easily bend in the thickness direction of the base member 20. The base member 20 may have rigidity that makes it difficult to bend in the thickness direction. The wiring member 10 may be made difficult to bend in the thickness direction of the base member 20.

[0022] The material, structure, etc. of the base member 20 are not particularly limited and can be set as appropriate. Regarding the material of the base member 20, here, the base member 20 is formed of a resin material. As the material of the base member 20, materials other than resin, such as metal or inorganic substances, may be used.

[0023] The structure of the base member 20 may be a single-layer structure or a multi-layer structure of two or more layers. The base member 20 has a fixing layer having a main surface to which the linear transmission member 30 is fixed. When the base member 20 has a multi-layer structure, the base member 20 has, in addition to the fixing layer, an additional layer laminated on the fixing layer. The additional layer is formed of a material different from that of the fixing layer or has a different structure. The additional layer enhances a function existing in the fixing layer or adds a function not existing in the fixing layer to the base member 20.

[0024] The fixing layer is preferably formed of a material containing a thermoplastic resin such as PVC (polyvinyl chloride), PE (polyethylene), PET (polyethylene terephthalate), or PP (polypropylene). The material constituting the additional layer may be, in addition to the materials described for the fixing layer above, metal or inorganic substances, etc.

[0025] Each layer of the base member 20 may be, for example, a sheet having a uniform solid cross-section (also called a non-foamed sheet or a solid sheet). Also, for example, each layer may be a foamed sheet or the like. Also, for example, each layer may be a fiber material sheet such as a knitted fabric, a woven fabric, or a non-woven fabric. Also, for example, each layer may be a mesh structure or the like. For example, the fixing layer may be a solid sheet and the additional layer may be a fiber material sheet.

[0026] Both the fixing layer and the additional layer may be resin layers. Also, for example, one of the fixing layer and the additional layer may be a resin layer and the other may be a metal layer. The fixing mode between the fixing layer and the additional layer is not particularly limited, but it is preferably fixed by fusion or adhesion. For example, if at least one of the fixing layer and the additional layer is a sheet with voids on the surface, such as a fiber material sheet or a foamed sheet, a resin material or an adhesive can enter the voids and be fixed. Thereby, a so-called anchor effect is exerted, and the fixing layer and the additional layer are firmly fixed.

[0027] The fixing layer and the additional layer may be formed in the same size (same planar shape). The fixing layer and the additional layer may be formed such that one is larger than the other. The entire contacting region of the fixing layer and the additional layer may be fixed. Only a part of the contacting region of the fixing layer and the additional layer may be fixed.

[0028] In the example shown in FIG. 1, the base member 20 has a bending path portion. The linear transmission member 30 is held so as to extend along the bending path portion. It is not essential for the base member 20 to have a bending path portion, and the base member 20 may be formed linearly. In the example shown in FIG. 1, the bending path portion is formed in an L-shape in which two linear strip portions are orthogonal. The bending path portion may be formed in a shape in which two linear strip portions intersect at an angle other than orthogonal. The bending path portion may be formed such that the strip portion is curved or arc-shaped.

[0029] In the example shown in FIG. 1, the base member 20 does not have a branching portion. The base member 20 may have a branching portion formed, for example, in a T-shape or a Y-shape. The base member 20 may hold the branching portion of the linear transmission member 30.

[0030] The plurality of linear transmission members 30 are each linear members for transmitting electricity, light, or the like. The plurality of linear transmission members 30 are assumed to be members for connecting components in a vehicle. For example, a connector 50 is provided at an end of the linear transmission member 30. By connecting this connector 50 to a connector 50 provided on a counterpart component, the linear transmission member 30 is connected to the counterpart component. That is, the wiring member 10 is used as a wiring member 10 for electrically (or optically communicably) connecting various components in a vehicle or the like.

[0031] The linear transmission member 30 is assumed to be a linear transmission member 30 for connecting components in a vehicle. The linear transmission member 30 extends along a wiring path according to the position of the component to be connected and the like. The linear transmission member 30 may be any linear member that transmits electricity, light, or the like. Each linear transmission member 30 may include a transmission line body 31 that transmits electricity, light, or the like, and a coating layer 32 that covers the transmission line body 31. The linear transmission member 30 may be composed only of the transmission line body 31 without including the coating layer 32. For example, the linear transmission member 30 may be a general electric wire having a core wire and a coating around the core wire, or may be a bare wire, a shielded wire, a twisted wire, an enameled wire, a nichrome wire, an optical fiber, or the like.

[0032] As the linear transmission member 30 for transmitting electricity, various signal lines and various power lines may be used. A part of the linear transmission member 30 for transmitting electricity may be used as an antenna, a coil, or the like that sends or receives signals or power to or from space.

[0033] Also, the linear transmission member 30 may be a single linear object, or may be a composite of a plurality of linear objects (such as a twisted wire, a cable in which a plurality of linear objects are gathered and covered with a sheath).

[0034] The linear transmission member 30 is arranged to bend along the bending path portion of the base member 20. The linear transmission member 30 has a curved section and a straight section. The curved section is the section arranged to bend along the bending path portion. The straight section is the section extending linearly along the linear strip portion. The straight sections are provided on both sides of the curved section.

[0035] One end of the linear transmission member 30 extends from the first end of the base member 20 and is connected to the connector 50. The other end of the linear transmission member 30 extends from the second end of the base member 20 and is connected to the connector 50. The end of the linear transmission member 30 may be connected to the connector 50 without extending from the base member 20. In this case, the connector 50 may be fixed to the base member 20.

[0036] For example, the connector 50 includes a connector terminal for transmitting electricity or light, and a housing for holding the connector terminal. The end of the transmission line main body 31 is connected to the connector terminal. For example, when the linear transmission member 30 is an electric wire, the connector terminal is a conductive member and the housing is an insulating member.

[0037] The portion where the base member 20 and the linear transmission member 30 are fixed is the fixing portion 40. Here, a plurality of fixing portions 40 are provided at intervals along the extending direction of one linear transmission member 30. The linear transmission member 30 is fixed to the base member 20 via a plurality of fixing portions 40 and is held in a predetermined path with respect to the base member 20. The plurality of fixing portions 40 fix at least the linearly extending portion of the linear transmission member 30 to the base member 20. Here, when the linear transmission member 30 extends linearly, it means that the linear transmission member 30 extends along one direction when observed in a plan view of the main surface of the base member 20. The fixing portion 40 fixes the portion of the linear transmission member 30 along the bending path portion to the base member 20 in a bent state. Portions of the linear transmission member 30 other than the portions fixed by the fixing portion 40 may be bent and fixed to the base member 20.

[0038] The fixing part 40 is formed by fixing the contact part. Here, the fixing of the contact part means that the part where the linear transmission member 30 and the base member 20 are in contact is adhered and fixed. Note that the fixing mode that is not the fixing of the contact part is the fixing of the non-contact part. The fixing of the non-contact part is, for example, a fixing member such as a sewing thread or an adhesive tape that presses the linear transmission member 30 toward the base member 20 and maintains the pressed state. The fixing of the contact part is a fixing mode excluding these fixings of the non-contact part.

[0039] As such a mode of fixing the contact part, it may be indirect fixing of the contact part, direct fixing of the contact part, or both may be used in different regions. Here, the indirect fixing of the contact part means that the linear transmission member 30 and the base member 20 are indirectly adhered and fixed through an indirect fixing part such as an adhesive, an adhesive agent, or a double-sided adhesive tape provided therebetween. Also, the direct fixing of the contact part means that the linear transmission member 30 and the base member 20 are directly adhered and fixed without passing through an adhesive or the like provided separately. In the direct fixing of the contact part, for example, it is conceivable that the resin contained in at least one of the linear transmission member 30 and the base member 20 is melted and adhered and fixed.

[0040] When such a state of direct fixing of the contact part is formed, the resin may be melted by heat, for example, or may be melted by a solvent. That is, the state of direct fixing of the contact part may be a state of direct fixing of the contact part by heat or a state of direct fixing of the contact part by a solvent. Preferably, it is a state of direct fixing of the contact part by heat.

[0041] At this time, the means for forming the state of directly fixing the contact part is not particularly limited, and known means such as welding, fusion bonding, and soldering can be used. For example, when forming the state of directly fixing the contact part by heat through fusion bonding, various fusion bonding means such as ultrasonic fusion bonding, heat and pressure fusion bonding, hot air fusion bonding, and high frequency fusion bonding can be adopted. Further, when the state of directly fixing the contact part is formed by these means, the linear transmission member 30 and the base member 20 are in the state of directly fixing the contact part by that means. Specifically, for example, when the state of directly fixing the contact part is formed by ultrasonic fusion bonding, the linear transmission member 30 and the base member 20 are in the state of directly fixing the contact part by ultrasonic fusion bonding.

[0042] Here, an explanation is made assuming that the fixing part 40 is a part for fusion-bonding and fixing the linear transmission member 30 to the base member 20. The fixing layer of the base member 20 is a fusion-bonding layer. Here, the coating layer 32 of the linear transmission member 30 and the fusion-bonding layer of the base member 20 contain the same kind of resin material. The resin materials of the coating layer 32 of the linear transmission member 30 and the fusion-bonding layer of the base member 20 are melted and fused together.

[0043] Explanations are made assuming that these fusion-bonding and fixing parts are fixing parts by ultrasonic fusion bonding. That is, the fixing part 40 is a fusion-bonding part where the resin constituting the base member 20 and the resin constituting the coating layer 32 of the linear transmission member 30 are fixed by ultrasonic fusion bonding. Further, each fixing part 40 can be regarded as spot fixing parts provided at a plurality of positions spaced apart along the extending direction with respect to one linear transmission member 30.

[0044] As shown in FIG. 2, in one continuous fixing part 40 along the extending direction of the linear transmission member 30, the portions located at both ends along the extending direction are the end fixing parts 41, and the portion located between the end fixing parts 41 at both ends is the intermediate fixing part 42. The fixing force of the end fixing part 41 is greater than the fixing force of the intermediate fixing part 42. Such a fixing force can be evaluated, for example, by the peel strength of each of the end fixing part 41 and the intermediate fixing part 42.

[0045] Such peel strength can be evaluated, for example, by conducting the same type of peel test on each of the end fixing portion 41 and the intermediate fixing portion 42. Such a peel test may be a test according to any of the tests defined in, for example, JIS K6854. Specifically, such a peel test is, for example, a 180-degree peel test in which the linear transmission member 30 is folded back 180 degrees and pulled with respect to the base member 20 at the end fixing portion 41 or the intermediate fixing portion 42, or a T-shaped peel test in which the base member 20 and the linear transmission member 30 are pulled in opposite vertical directions with respect to the fusion surface. By conducting the same type of peel test on the end fixing portion 41 and the intermediate fixing portion 42, the magnitude of the peel strength is evaluated.

[0046] Note that for the end fixing portion 41, since the end fixing portion 41 is located at the end of the fixing portion 40 along the extending direction of the linear transmission member 30, the result of the peel test performed on the fixing portion 40 can be used to evaluate the adhesion force of the end fixing portion 41. For the intermediate fixing portion 42, after the fixing portion 40 is formed, when the end fixing portion 41 on one end side is cut off, the result of the peel test performed on the intermediate fixing portion 42 which forms the end of the linear transmission member 30 can be used to evaluate the adhesion force of the intermediate fixing portion 42. As a sample for the peel test of the intermediate fixing portion 42, for example, a sample in which the wiring member 10 is cut at the center of the fixing portion 40 along the extending direction of the linear transmission member 30 may be used.

[0047] At each of a plurality of fixing portions 40 spaced apart along the extending direction of the linear transmission member 30, the fixing force of the end fixing portion 41 is greater than the fixing force of the intermediate fixing portion 42. Also, at the fixing portion 40 of each of the plurality of linear transmission members 30, the fixing force of the end fixing portion 41 is greater than the fixing force of the intermediate fixing portion 42. In the example shown in FIG. 1, each of the six linear transmission members 30 is fixed to the base member 20 at six fixing portions 40. Therefore, in the example shown in FIG. 1, 36 fixing portions 40 are provided in the wiring member 10. At each of the 36 fixing portions 40, the fixing force of the end fixing portion 41 is greater than the fixing force of the intermediate fixing portion 42. However, in some of the plurality of fixing portions 40 in the wiring member 10, the fixing force of the end fixing portion 41 may be the same as or smaller than the fixing force of the intermediate fixing portion 42.

[0048] The end fixing portions 41 in the fixing portion 40 of the plurality of linear transmission members 30 are adjacent to each other and the intermediate fixing portions 42 are adjacent to each other. Here, as shown in FIG. 1, in the plurality of linear transmission members 30, the positions of the fixing portions 40 are adjacent to each other. In the adjacent fixing portions 40, along the extending direction of the linear transmission member 30, the positions of one end of the fixing portion 40 are aligned and the positions of the other end of the fixing portion 40 are aligned. As a result, in the adjacent fixing portions 40, the end fixing portions 41 are adjacent to each other and the intermediate fixing portions 42 are adjacent to each other. Note that, in the adjacent fixing portions 40, the fixing forces may be the same as each other or different from each other. In the adjacent fixing portions 40, the fixing force of the end fixing portion 41 of one fixing portion 40 may be smaller than the fixing force of the intermediate fixing portion 42 of the other fixing portion 40. As long as the fixing force of the end fixing portion 41 is greater than the fixing force of the intermediate fixing portion 42 within one fixing portion 40.

[0049] The difference between the adhesive force of the end fixing portion 41 and the adhesive force of the intermediate fixing portion 42 is not particularly limited and can be set as appropriate. For example, the difference between the adhesive force of the end fixing portion 41 and the adhesive force of the intermediate fixing portion 42 may be greater than 0 and not more than 100 percent of the adhesive force of the intermediate fixing portion 42. That is, the adhesive force of the end fixing portion 41 may be greater than the adhesive force of the intermediate fixing portion 42 and not more than twice the adhesive force of the intermediate fixing portion 42. Also, for example, the difference between the adhesive force of the end fixing portion 41 and the adhesive force of the intermediate fixing portion 42 may be 100 percent or more of the adhesive force of the intermediate fixing portion 42. That is, the adhesive force of the end fixing portion 41 may be twice or more the adhesive force of the intermediate fixing portion 42.

[0050] In one fixing portion 40, it may be configured such that the adhesive force gradually decreases from the end fixing portion 41 toward the center of the intermediate fixing portion 42. That is, when the adhesive force of the fixing portion 40 is plotted on the vertical axis and the extending direction of the linear transmission member 30 is plotted on the horizontal axis, the graph may be linear from the end to the center of the fixing portion 40. In one end fixing portion 41, the adhesive force of the end on the intermediate fixing portion 42 side may be smaller than the adhesive force of the end on the side opposite to the intermediate fixing portion 42. Similarly, in the intermediate fixing portion 42, the adhesive force of the end along the extending direction may be smaller than the adhesive force of the center along the extending direction.

[0051] In one fixing portion 40, the adhesive force of the end fixing portion 41 may be generally constant along the extending direction of the linear transmission member 30, and the adhesive force of the intermediate fixing portion 42 may be generally constant along the extending direction of the linear transmission member 30. That is, when the adhesive force of the fixing portion 40 is plotted on the vertical axis and the extending direction of the linear transmission member 30 is plotted on the horizontal axis, the graph may be in the shape of a step function.

[0052] Among the dimensions of the fixing portion 40, the dimension along the extending direction of the linear transmission member 30 is defined as the length dimension of the fixing portion 40, and the dimension along the width direction of the linear transmission member 30 is defined as the width dimension of the fixing portion 40. Similarly, the dimension of the end fixing portion 41 along the extending direction of the linear transmission member 30 is defined as the length dimension of the end fixing portion 41. Also, the dimension of the intermediate fixing portion 42 along the extending direction of the linear transmission member 30 is defined as the length dimension of the intermediate fixing portion 42.

[0053] The width dimension of the fixing portion 40 is equal to or less than the diameter of the linear transmission member 30. Here, in the height direction of the linear transmission member 30, the portion below the center is fixed to the base member 20. For this reason, here, the width dimension of the fixing portion 40 is smaller than the diameter of the linear transmission member 30.

[0054] The length dimension of the fixing portion 40 is not particularly limited and can be set as appropriate. The length dimension of the fixing portion 40 may be longer than the width dimension of the fixing portion 40. The length dimension of the fixing portion 40 may also be longer than the diameter of the linear transmission member 30. For example, the size of an automotive wire with a conductor cross-sectional area of about 0.5 square meters is 0.5 sq, and the diameter of the 0.5 sq automotive wire is about 2.2 millimeters. The length dimension of the fixing portion 40 may be longer than 2.2 millimeters. The length dimension of the fixing portion 40 may be, for example, from 5 millimeters to 15 millimeters.

[0055] The length dimensions of the end fixing portion 41 and the length dimensions of the intermediate fixing portion 42 are not particularly limited and can be set as appropriate. For example, the length dimension of one end fixing portion 41 may be the same as or shorter than the length dimension of one intermediate fixing portion 42. Also, for example, the sum of the length dimensions of the two end fixing portions 41 may be the same as or shorter than the length dimension of one intermediate fixing portion 42. Also, for example, both ends of one fixing portion 40 divided into three to six equal parts along the extending direction of the linear transmission member 30 may be the end fixing portions 41, and the intermediate portion may be the intermediate fixing portion 42. Also, for example, the length dimension of one end fixing portion 41 may be one-tenth to one-third of the length dimension of the fixing portion 40. The length dimension of one intermediate fixing portion 42 may be one-third to four-fifths of the length dimension of the fixing portion 40. For example, if the length dimension of the fixing portion 40 is 10 millimeters, the length dimension of one end fixing portion 41 may be 2 millimeters, and the length dimension of the intermediate fixing portion 42 may be 6 millimeters.

[0056] The difference in the fixing force between the end fixing portion 41 and the intermediate fixing portion 42 may be obtained by any configuration or any method. Here, there is no difference in the material to be fixed between the end fixing portion 41 and the intermediate fixing portion 42. That is, the material of the end fixing portion 41 and the material of the intermediate fixing portion 42 may have the same fixing force when fixed under the same fixing conditions.

[0057] In each of the linear transmission member 30 and the base member 20, the portion that becomes the end fixing portion 41 and the portion that becomes the intermediate fixing portion 42 are of the same type. The same type of portion means that the thickness, layer structure, etc. are the same as each other.

[0058] When there is no difference in the material to be fixed between the end fixing portion 41 and the intermediate fixing portion 42, for example, when forming the fixing portion 40, the difference in the fixing force can be realized by making the energy applied to the end fixing portion 41 larger than the energy applied to the intermediate fixing portion 42. Such a difference in the applied energy can be obtained by changing the conditions on the fixing device side. When the fixing portion 40 is formed by ultrasonic welding, such conditions may be, for example, the pressing force, the pressing time, or the vibration conditions.

[0059] <Manufacturing method> FIG. 4 is an explanatory diagram showing an example of a manufacturing method of the wiring member 10 according to Embodiment 1. FIG. 5 is an explanatory diagram showing another example of a manufacturing method of the wiring member 10 according to Embodiment 1.

[0060] The manufacturing method of the wiring member 10 includes an arranging step and a fixing step. The arranging step is a step of arranging the linear transmission member 30 on the base member 20. The fixing step is a step of fixing the contact portion of the linear transmission member 30 to the base member 20 to form the fixing portion 40.

[0061] In the fixing step, the fixing is performed such that the fixing force of the end fixing portion 41 is greater than the fixing force of the intermediate fixing portion 42. Here, in the fixing step, the fixing is performed such that the fixing force of the end fixing portion 41 is greater than the fixing force of the intermediate fixing portion 42 by making the force for sandwiching the portion that becomes the end fixing portion 41 larger than the force for sandwiching the portion that becomes the intermediate fixing portion 42. That is, in the end fixing portion 41 and the intermediate fixing portion 42, the difference in the fixing force is obtained by changing the pressing force.

[0062] As shown in FIG. 4, when forming the fixing portion 40, the linear transmission member 30 and the base member 20 serving as fixing materials are sandwiched in the stacking direction by the first member 81 and the second member 82. At this time, the pressure applied to the portion that becomes the end fixing portion 41 by the first member 81 and the second member 82 is greater than the pressure applied to the portion that becomes the intermediate fixing portion 42.

[0063] Here, the fixing portion 40 is an ultrasonic welding portion. In this case, the first member 81 and the second member 82 are constituted by a horn 81 and an anvil 82 in an ultrasonic welder. The ultrasonic welder applies ultrasonic vibration while applying pressure. The horn 81 is a member that applies ultrasonic vibration. The anvil 82 supports the member from the side opposite to the horn 81. The portion that becomes the fixing portion 40 is pressed by the horn 81 and the anvil 82. For example, the horn 81 contacts the outer surface of the base member 20 on the side opposite to the linear transmission member 30 side and applies ultrasonic vibration. The anvil 82 supports the linear transmission member 30.

[0064] The method of varying the pressing force is not particularly limited and can be set as appropriate. In the example shown in FIG. 4, a concavo-convex shape is provided on the contact surface 81A of the horn 81 that contacts the welding material (here, the base member 20). Convex portions 81B are provided at both ends of the contact surface 81A along the extending direction of the linear transmission member 30, and a concave portion 81C is provided between the convex portions 81B. Thereby, the pressing force at the portion where the convex portion 81B is located becomes larger than the pressing force at the portion where the concave portion 81C is located. However, the concavo-convex shape may be provided on the anvil 82 instead of the horn 81, so that the pressing forces may be different. Also, the concavo-convex shape may be provided on both the horn 81 and the anvil 82, so that the pressing forces may be different.

[0065] In the example shown in FIG. 4, a pair of horn 81 and anvil 82 are used to form the end fixing portion 41 and the intermediate fixing portion 42 at once. In this case, in the ultrasonic welding machine, conditions other than the pressing force on the end fixing portion 41 and the intermediate fixing portion 42 (such as the vibration intensity of the horn 81, the vibration application time, and the pressing time by the horn 81 and the anvil 82) are the same conditions. In the ultrasonic welding machine, conditions other than the pressing force on the end fixing portion 41 and the intermediate fixing portion 42 may be different. When the end fixing portion 41 and the intermediate fixing portion 42 are not formed at once but are formed in order, conditions other than the pressing force can be made different between the formation of the end fixing portion 41 and the formation of the intermediate fixing portion 42. For example, any one of the vibration intensity of the horn 81, the vibration application time, and the pressing time by the horn 81 and the anvil 82 may be made different between the formation of the end fixing portion 41 and the formation of the intermediate fixing portion 42.

[0066] Adjacent fixing portions 40 of the plurality of linear transmission members 30 may be formed at once using a pair of horn 81 and anvil 82. Adjacent fixing portions 40 of the plurality of linear transmission members 30 may be formed in order using a pair of horn 81 and anvil 82, or may be formed at once using another pair of horn 81 and anvil 82.

[0067] The pressing force may be different due to a configuration other than the uneven shape of the horn 81 or the anvil 82. For example, the pressing force may be different when the anvil 82 is formed of an elastic material such as rubber or elastomer. In this case, the contact surface 81A of the horn 81 and the support surface 82A of the anvil 82 may be a horizontal plane or may have an uneven shape. When the anvil 82 is formed of an elastic material, the anvil 82 bends during pressing, so that the pressing force at the end can be made larger than the pressing force at the intermediate portion.

[0068] Specifically, in the example shown in FIG. 5, the anvil 82 is formed of an elastic material. Of the linear transmission member 30 and the base member 20, portions (not shown) on both sides of the portion sandwiched between the horn 81 and the anvil 82 along the extending direction are supported at fixed positions. In this state, the support surface 82A of the anvil 82 pressed from the horn 81 via the fixing material contracts in the pressing direction (downward in the drawing of FIG. 5). As a result, the portion of the linear transmission member 30 and the base member 20 sandwiched between the horn 81 and the anvil 82 bends toward the anvil 82 side. As a result, portions on both sides of the portion of the base member 20 that contacts the contact surface 81A of the horn 81 extend upward in the drawing of FIG. 5. As a result, both ends of the horn 81 bite into the base member 20 along the extending direction of the linear transmission member 30, and the pressing force at both ends becomes larger than the pressing force in the middle.

[0069] <Effects, etc.> According to the wiring member 10 configured as described above and its manufacturing method, when the linear transmission member 30 fixed to the contact portion of the base member 20 is peeled off from the base member 20, it is usually easily peeled off from the end fixing portion 41 located at the end of the fixing portion 40. Since the adhesive force of the end fixing portion 41 is greater than the adhesive force of the intermediate fixing portion 42, the easily peeled end portion can be fixed more firmly, and the linear transmission member 30 is less likely to be peeled off from the base member 20.

[0070] Also, in the fixing portion 40 of each of the plurality of linear transmission members 30, the adhesive force of the end fixing portion 41 is greater than the adhesive force of the intermediate fixing portion 42. As a result, each of the plurality of linear transmission members 30 is less likely to be peeled off from the base member 20.

[0071] Also, the end fixing portions 41 in the plurality of fixing portions 40 are adjacent to each other, and the intermediate fixing portions 42 are adjacent to each other. As a result, while providing the plurality of fixing portions 40 together at once, the adhesive force of the end fixing portion 41 in each fixing portion 40 can be made greater than the adhesive force of the intermediate fixing portion 42.

[0072] Also, according to the manufacturing method of the wiring member 10, in the fixing step, by making the force for clamping the portion that becomes the end fixing portion 41 larger than the force for clamping the portion that becomes the intermediate fixing portion 42, the fixing is performed such that the fixing force of the end fixing portion 41 becomes larger than the fixing force of the intermediate fixing portion 42. Thereby, it is possible to easily perform the fixing such that the fixing force of the end fixing portion 41 becomes larger than the fixing force of the intermediate fixing portion 42.

[0073] [Appendix] FIG. 6 is a cross-sectional view showing a wiring member 110 according to a modified example.

[0074] The wiring member 110 is different from the above wiring member 10 in that a recess 22 is formed on the outer surface of the base member 120. The recess 22 is formed on the outer surface of the portion of the base member 120 where the fixing portion 40 is formed. In the base member 120, the outer surface on which the recess 22 is formed is the surface opposite to the main surface on the side of the linear transmission member 30. The recess 22 is, for example, a mark pressed by the first member 81. When the fixing portion 40 is a fusion portion, the recess 22 is a fusion mark. Also, when the fixing device is an ultrasonic welding machine, the recess 22 is a horn mark.

[0075] Of the recess 22, the portions located at both ends along the extending direction of the linear transmission member 30 are defined as end portions 23, and the portion located in the middle is defined as an intermediate portion 24. As shown in FIG. 6, the amount of indentation of the end portion 23 may be larger than the amount of indentation of the intermediate portion 24. For example, as the pressing force by the first member 81 and the second member 82 increases, the amount of indentation of the recess 22 increases.

[0076] In addition, the respective configurations described in the above embodiments and modified examples can be appropriately combined as long as they do not conflict with each other.

Explanation of Reference Numerals

[0077] 10, 110 Wiring member 20, 120 Base member 22 Recess 23 End portion 24 Intermediate portion 30 Linear transmission member 31 Transmission line body 32 Coating layer 40 Fixing part 41 End fixing part 42 Intermediate fixing part 50 Connector 81 First member (horn) 81A Contact surface 81B Protrusion 81C Recess 82 Second member (anvil) 82A Support surface

Claims

1. A base member, A linear transmission member fixed to a contact portion of the base member, Comprising, At a fixing portion between the base member and the linear transmission member, in one continuous fixing portion along the extending direction of the linear transmission member, portions located at both ends along the extending direction are end fixing portions, and a portion located between the end fixing portions at both ends is an intermediate fixing portion, A wiring member in which the fixing force of the end fixing portion is greater than the fixing force of the intermediate fixing portion.

2. The wiring member according to Claim 1, Wherein a plurality of the linear transmission members are arranged in parallel, In the fixing portion of each of the plurality of linear transmission members, a wiring member in which the fixing force of the end fixing portion is greater than the fixing force of the intermediate fixing portion.

3. The wiring member according to Claim 2, A wiring member in which the end fixing portions in the plurality of fixing portions are adjacent to each other and the intermediate fixing portions are adjacent to each other.

4. An arranging step of arranging a linear transmission member on a base member, A fixing step of fixing the contact portion of the linear transmission member to the base member to form a fixing portion, Comprising, In one fixing portion continuous along the extending direction of the linear transmission member, portions located at both ends along the extending direction are end fixing portions, and a portion located between the end fixing portions at both ends is an intermediate fixing portion, A method for manufacturing a wiring member, wherein in the fixing step, the fixing force of the end fixing portion is fixed to be greater than the fixing force of the intermediate fixing portion.

5. The method for manufacturing a wiring member according to Claim 4, In the fixing step, by making the force for clamping the portion to be the end fixing portion greater than the force for clamping the portion to be the intermediate fixing portion, the fixing force of the end fixing portion is fixed to be greater than the fixing force of the intermediate fixing portion. A method for manufacturing a wiring member.

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