Wiring member and method for producing wiring member

Abstract

To make it possible to simply confirm that peeling strength of a plurality of linear transmission members in parallel on a base member is larger than a predetermined value.SOLUTION: A wiring member 10 includes: a plurality of linear transmission members 30 comprising a first linear transmission member 30X and a second linear transmission member 30Y that are arranged in parallel; and a base member 20 on which the plurality of linear transmission members 30 are fixed at contact points. The peel strength of the first linear transmission member 30X with respect to the base member 20 is higher than that of the second linear transmission member 30Y with respect to the base member 20.SELECTED DRAWING: Figure 1

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 peel strength of a plurality of electric wires arranged in parallel on the exterior member can be easily confirmed to be a predetermined value or more.

[0005] Therefore, an object is to enable easy confirmation that the peel strength of a plurality of linear transmission members arranged in parallel on a base member is a predetermined value or more.

Means for Solving the Problems

[0006] The wiring member of the present disclosure includes a plurality of linear transmission members including a first linear transmission member and a second linear transmission member arranged in parallel, and a base member to which the plurality of linear transmission members are fixed at contact portions, and the peel strength of the first linear transmission member with respect to the base member is higher than the peel strength of the second linear transmission member with respect to the base member.

Effects of the Invention

[0007] According to the present disclosure, it is possible to easily confirm that the peel strength of a plurality of linear transmission members arranged in parallel on a base member is a predetermined value or more.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

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 plurality of linear transmission members including a first linear transmission member and a second linear transmission member arranged in parallel, and a base member to which the plurality of linear transmission members are fixed at contact portions, wherein the peel strength of the first linear transmission member with respect to the base member is higher than the peel strength of the second linear transmission member with respect to the base member.

[0012] According to the wiring member of (1), if it can be confirmed that the peel strength of the second linear transmission member is equal to or higher than a predetermined value, it can be ensured that the peel strength of the first linear transmission member is equal to or higher than the predetermined value without performing a peel strength test on the first linear transmission member. Further, the positions of the first linear transmission member and the second linear transmission member with respect to the base member can be set at predetermined positions. Thereby, it is possible to easily confirm that the peel strength of the plurality of linear transmission members with respect to the base member is equal to or higher than a predetermined value.

[0013] (2) In the wiring member of (1), the second linear transmission member may be located outside the first linear transmission member along the parallel direction of the plurality of linear transmission members. As a result, since the second linear transmission member is located outside the first linear transmission member along the parallel direction, it becomes easier to recognize the second linear transmission member during the test for checking the peel strength and also easier to grip the second linear transmission member.

[0014] (3) In the wiring member of (2), a pair of the second linear transmission members may be located on both outer sides of the first linear transmission member along the parallel direction. As a result, it becomes possible to inspect either of the pair of second linear transmission members on both outer sides.

[0015] (4) In the wiring member of (3), a first group and a second group each including three or more linear transmission members among the plurality of linear transmission members are provided. The first group and the second group are arranged on the base member with a space therebetween. The first group has a first end linear transmission member located at an end on the second group side, a second end linear transmission member located at an end opposite to the first end linear transmission member, and a first intermediate linear transmission member between the first end linear transmission member and the second end linear transmission member. The second group has a third end linear transmission member located at an end on the first group side, a fourth end linear transmission member located at an end opposite to the third end linear transmission member, and a second intermediate linear transmission member between the third end linear transmission member and the fourth end linear transmission member. The distance between the first end linear transmission member and the third end linear transmission member is larger than the distance between the linear transmission members in each group. Each of the first end linear transmission member, the second end linear transmission member, the third end linear transmission member, and the fourth end linear transmission member may be the second linear transmission member, and each of the first intermediate linear transmission member and the second intermediate linear transmission member may be the first linear transmission member. As a result, in each group, by checking the peel strength of the second linear transmission member, it is possible to easily confirm that the peel strength of the plurality of linear transmission members with respect to the base member is equal to or greater than a predetermined value.

[0016] (5) In the wiring member of (3), a first group and a second group each including three or more of the plurality of linear transmission members are provided. The first group and the second group are arranged on the base member with a space therebetween. The first group has a first end linear transmission member located at an end on the second group side, a second end linear transmission member located at an end opposite to the first end linear transmission member, and a first intermediate linear transmission member between the first end linear transmission member and the second end linear transmission member. The second group has a third end linear transmission member located at an end on the first group side, a fourth end linear transmission member located at an end opposite to the third end linear transmission member, and a second intermediate linear transmission member between the third end linear transmission member and the fourth end linear transmission member. The distance between the first end linear transmission member and the third end linear transmission member is larger than the distance between the linear transmission members in each group. Each of the second end linear transmission member and the fourth end linear transmission member is the second linear transmission member, and each of the first end linear transmission member, the first intermediate linear transmission member, the third end linear transmission member, and the second intermediate linear transmission member may be the first linear transmission member. Thereby, by inspecting the peeling strength of the second linear transmission member, it can be easily confirmed that the peeling strength of the plurality of linear transmission members with respect to the base member is equal to or greater than a predetermined value for all the linear transmission members of the first group and the second group.

[0017] (6) In any one of the wiring members of (1) to (5), the first linear transmission member and the second linear transmission member may have the same thickness as each other. Thereby, it becomes easier to set conditions for producing a difference in peeling strength between the first linear transmission member and the second linear transmission member.

[0018] (7) Further, the method for manufacturing a wiring member according to the present disclosure includes an arranging step of arranging a plurality of linear transmission members including a first linear transmission member and a second linear transmission member arranged in parallel on a base member, and a fixing step of fixing the plurality of linear transmission members to the base member at contact portions. In the fixing step, the fixing is performed such that the peeling strength of the first linear transmission member with respect to the base member is higher than the peeling strength of the second linear transmission member with respect to the base member. If it can be confirmed that the peeling strength of the second linear transmission member is equal to or higher than a predetermined value, it can be ensured that the peeling strength of the first linear transmission member is equal to or higher than the predetermined value without performing a peeling strength test on the first linear transmission member. Further, the positions of the first linear transmission member and the second linear transmission member with respect to the base member can be set at predetermined positions. Thereby, it is possible to easily confirm that the peeling strength of the plurality of linear transmission members with respect to the base member is equal to or higher than a predetermined value.

[0019] (8) In the method for manufacturing a wiring member according to (7), in the fixing step, the force for sandwiching the first linear transmission member and the base member is made larger than the force for sandwiching the second linear transmission member and the base member, whereby the fixing may be performed such that the peeling strength of the first linear transmission member with respect to the base member is higher than the peeling strength of the second linear transmission member with respect to the base member. Thereby, it is possible to easily perform the fixing such that the peeling strength of the first linear transmission member with respect to the base member is higher than the peeling strength of the second linear transmission member with respect to the base member.

[0020] [Details of Embodiments of the Present Disclosure] Specific examples of the wiring member and the method for manufacturing the wiring member according to the present disclosure will be described below with reference to the drawings. It should be noted that the present disclosure is not limited to these examples, and is shown by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0021] [Embodiment 1] Hereinafter, a wiring member and a method for manufacturing 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.

[0022] The wiring member 10 includes a base member 20 and a plurality of linear transmission members 30. The plurality of linear transmission members 30 are fixed on the base member 20. Thereby, the portions of the plurality of linear transmission members 30 disposed on the base member 20 are held along a predetermined path.

[0023] The base member 20 has a main surface. The linear transmission members 30 are 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 only needs to be a member having a main surface for fixing the linear transmission members 30, and may be formed in a sheet shape or a three-dimensional shape. Here, the base member 20 will be described as being a sheet member formed in an overall flat shape. By fixing the plurality of linear transmission members 30 to the flat sheet member, the wiring member 10 is kept in a flat form.

[0024] The base member 20 has flexibility that easily bends in the thickness direction. The wiring member 10 including the base member 20 and the linear transmission members 30 has flexibility that easily bends in the thickness direction of the base member 20. The base member 20 may have rigidity that is 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.

[0025] 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.

[0026] 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 is 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.

[0027] The fixing layer is preferably formed of a material containing a thermoplastic resin such as PVC (polyvinyl chloride), PE (polyethylene), PET (polyethylene terephthalate), PP (polypropylene). The material constituting the additional layer may be, in addition to the materials described for the fixing layer above, a metal, an inorganic substance, or the like.

[0028] 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 have 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.

[0029] 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 having 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.

[0030] The fixed layer and the additional layer may be formed to have the same size (the same planar shape). The fixed layer and the additional layer may be formed such that one is larger than the other. The entire contacting region of the fixed layer and the additional layer may be fixed. Only a part of the contacting region of the fixed layer and the additional layer may be fixed.

[0031] 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 where two linear strip portions are orthogonal. The bending path portion may be formed in a shape where 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, etc.

[0032] 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.

[0033] The plurality of linear transmission members 30 are each linear members that transmit electricity, light, etc. It is assumed that the plurality of linear transmission members 30 are members that connect components in a vehicle. For example, a connector 50 is provided at the end of the linear transmission member 30. By connecting this connector 50 to the connector 50 provided on the counterpart component, the linear transmission member 30 is connected to the counterpart component. That is, this wiring member 10 is used as a wiring member 10 that electrically (or optically communicably) connects various components in a vehicle or the like.

[0034] The linear transmission member 30 is assumed to be a linear transmission member that connects 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 a 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.

[0035] As the linear transmission member 30 that transmits electricity, various signal lines and various power lines may be used. A part of the linear transmission member 30 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.

[0036] 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).

[0037] 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 a section that is arranged to bend along the bending path portion. The straight section is a section that extends linearly along a linear strip portion. Straight sections are provided on both sides of the curved section.

[0038] 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.

[0039] 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.

[0040] 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 the 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, the fact that the linear transmission member 30 extends linearly means that when the main surface of the base member 20 is observed in a plan view, the linear transmission member 30 extends along one direction. The fixing portion 40 fixes the portion along the bent path portion of the linear transmission member 30 to the base member 20 in a bent state. The portion of the linear transmission member 30 other than the portion fixed by the fixing portion 40 may be bent and fixed to the base member 20.

[0041] The fixing portion 40 is formed by contact portion fixing. Here, contact portion fixing means that the portion where the linear transmission member 30 and the base member 20 come into contact is adhered and fixed. Note that the fixing mode that is not contact portion fixing is non-contact portion fixing. Non-contact portion fixing 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. Contact portion fixing is a fixing mode excluding these non-contact portion fixings.

[0042] As such a mode of fixing the contact portion, indirect fixing of the contact portion may be employed, direct fixing of the contact portion may be employed, or both may be used in different regions. Here, indirect fixing of the contact portion means that the linear transmission member 30 and the base member 20 are indirectly adhered and fixed via an indirect fixing portion such as an adhesive, a pressure-sensitive adhesive, or a double-sided adhesive tape provided therebetween. Further, direct fixing of the contact portion means that the linear transmission member 30 and the base member 20 are directly adhered and fixed without using an adhesive or the like provided separately. In direct fixing of the contact portion, 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 to be fixed.

[0043] When forming such a state of direct fixing of the contact portion, it is also conceivable that the resin is melted by heat or melted by a solvent. That is, as the state of direct fixing of the contact portion, a state of direct fixing of the contact portion by heat or a state of direct fixing of the contact portion by a solvent may be employed. Preferably, a state of direct fixing of the contact portion by heat may be employed.

[0044] At this time, the means for forming the state of direct fixing of the contact portion is not particularly limited, and known means such as welding, fusion bonding, and soldering can be used. For example, when forming a state of direct fixing of the contact portion by heat by 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 direct fixing of the contact portion is formed by these means, the linear transmission member 30 and the base member 20 are in the state of direct fixing of the contact portion by that means. Specifically, for example, when the state of direct fixing of the contact portion is formed by ultrasonic fusion bonding, the linear transmission member 30 and the base member 20 are in the state of direct fixing of the contact portion by ultrasonic fusion bonding.

[0045] Here, an explanation is given assuming that the fixing portion 40 is a portion for fusion-fixing the linear transmission member 30 to the base member 20. The fixing layer of the base member 20 is a fusion layer. Here, the coating layer 32 of the linear transmission member 30 and the fusion layer of the base member 20 contain the same type of resin material. The resin materials of the coating layer 32 of the linear transmission member 30 and the fusion layer of the base member 20 are melted and fused together.

[0046] An explanation is given assuming that these fusion-fixing portions are fixing portions by ultrasonic fusion. That is, the fixing portion 40 is a fusion portion 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. Further, each fixing portion 40 can be regarded as a spot fixing portion provided at a plurality of positions spaced apart along the extending direction with respect to one linear transmission member 30.

[0047] The plurality of linear transmission members 30 include a first linear transmission member 30X and a second linear transmission member 30Y. The first linear transmission member 30X and the second linear transmission member 30Y are linear transmission members having different peel strengths with respect to the base member 20. The peel strength of the first linear transmission member 30X with respect to the base member 20 is higher than the peel strength of the second linear transmission member 30Y with respect to the base member 20. Therefore, the first linear transmission member 30X is more difficult to peel from the base member 20 than the second linear member. Hereinafter, the fixing portion 40 of the first linear transmission member 30X may be referred to as the first fixing portion 40X, and the fixing portion 40 of the second linear transmission member 30Y may be referred to as the second fixing portion 40Y. Also, the peel strength of the first linear transmission member 30X with respect to the base member 20 may be referred to as the peel strength of the first fixing portion 40X, and the peel strength of the second linear transmission member 30Y with respect to the base member 20 may be referred to as the peel strength of the second fixing portion 40Y.

[0048] Such peel strength can be evaluated, for example, by performing the same type of peel test on each linear transmission member 30. Such a peel test may be a test conforming to any of the tests specified in, for example, JIS K6854. Specifically, such a peel test may be, 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, or a T-type 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 performing the same type of peel test on the first linear transmission member 30X and the second linear transmission member 30Y, the magnitude of the peel strength is evaluated.

[0049] Here, in the wiring member 10, each of the first fixing portion 40X and the second fixing portion 40Y is designed to be fixed to the base member 20 with a predetermined peel strength or more. The magnitude of the predetermined peel strength is not particularly limited and can be set as appropriate. The predetermined peel strength can be regarded as a sufficient value (threshold value) as the peel strength of the wiring member 10.

[0050] Here, the predetermined peel strength of the first fixing portion 40X and the predetermined peel strength of the second fixing portion 40Y are the same magnitude. And after the manufacture of the wiring member 10, it is confirmed by partial extraction inspection or the like that the peel strength of the first fixing portion 40X and the second fixing portion 40Y is equal to or greater than a predetermined value. At this time, if it can be confirmed that the peel strength of the second fixing portion 40Y is equal to or greater than the predetermined peel strength, the peel strength of the first fixing portion 40X designed to be higher than the peel strength of the second fixing portion 40Y can also be regarded as equal to or greater than the predetermined peel strength, and the inspection of the peel strength of the first fixing portion 40X can be omitted.

[0051] Here, the second linear transmission member 30Y has the lowest peel strength among the plurality of parallel linear transmission members 30. Also, the predetermined peel strengths set for the plurality of fixing portions 40 are the same magnitude as each other. Therefore, if it can be confirmed that the peel strength of the second fixing portion 40Y is equal to or greater than the predetermined peel strength, it can be regarded that all of the plurality of fixing portions 40 have a peel strength equal to or greater than the predetermined peel strength, and the inspection of the peel strength for the fixing portions 40 other than the second fixing portion 40Y can be omitted.

[0052] The difference in the peel strength between the first linear transmission member 30X and the second linear transmission member 30Y may be obtained by any configuration or any method. Here, in the first fixing portion 40X and the second fixing portion 40Y, there is no difference in the material to be fixed. That is, the materials of the first fixing portion 40X and the second fixing portion 40Y may have the same peel strength when fixed under the same fixing conditions.

[0053] The first linear transmission member 30X and the second linear transmission member are the same type of linear transmission member 30. The same type of linear transmission member 30 means that the thickness, the type of the transmission line main body 31, and the type of the coating layer 32 are the same as each other. Therefore, the first linear transmission member 30X and the second linear transmission member 30Y have the same thickness as each other. Also, the transmission line main body 31 of the first linear transmission member 30X and the transmission line main body 31 of the second linear transmission member 30Y are the same in material and structure as each other. Also, the coating layer 32 of the first linear transmission member 30X and the coating layer 32 of the second linear transmission member 30Y are the same in material and structure as each other. Note that the same thickness means, for example, the same size among a plurality of sizes set for automotive wires, and a difference in the outer diameter due to the tolerance within one size is allowed.

[0054] In the base member 20, the portion where the first linear transmission member 30X is fixed and the portion where the second linear transmission member 30Y is fixed are the same type of portions. The same type of portions means that the thickness, the layer configuration, and the like are the same as each other.

[0055] In the first fixing portion 40X and the second fixing portion 40Y, when there is no difference in the material to be fixed, for example, by making the energy applied to the first fixing portion 40X larger than the energy applied to the second fixing portion 40Y when forming the fixing portion 40, a difference in the peel strength can be realized. 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.

[0056] In the first fixing portion 40X and the second fixing portion 40Y, even if there are differences in the materials to be fixed (the base member 20 and the coating layer 32), the applied energy may be the same. For example, when the same energy is applied to each other, the material of the first fixing portion 40X may be more likely to adhere than the material of the second fixing portion 40Y, so that the peel strength of the first fixing portion 40X may be higher than the peel strength of the second fixing portion 40Y.

[0057] The first linear transmission member 30X and the second linear transmission member 30Y are parallel. The first linear transmission member 30X and the second linear transmission member 30Y are parallel from the first end portion to the second end portion of the base member 20. The first linear transmission member 30X and the second linear transmission member 30Y may branch in the middle of the path on the base member 20.

[0058] The second linear transmission member 30Y is located outside along the parallel direction of the plurality of linear transmission members 30 more than the first linear transmission member 30X. However, the second linear transmission member 30Y may be located inside along the parallel direction of the plurality of linear transmission members 30 more than the first linear transmission member 30X.

[0059] Here, a pair of second linear transmission members 30Y are located on both outer sides of the first linear transmission member 30X along the parallel direction. In the parallel direction, the outermost pair of the six linear transmission members 30 are the second linear transmission members 30Y. In the parallel direction, the inner four linear transmission members 30 are the first linear transmission members 30X. However, only one linear transmission member 30 on one outer side along the parallel direction may be the second linear transmission member 30Y, and the other five linear transmission members 30 may be the first linear transmission members 30X.

[0060] <Manufacturing method> FIG. 3 is an explanatory diagram showing an example of a manufacturing method of the wiring member 10 according to Embodiment 1.

[0061] The manufacturing method of the wiring member 10 includes an arranging step and a fixing step. The arranging step is a step of arranging a plurality of linear transmission members 30 including the first linear transmission member 30X and the second linear transmission member 30Y arranged in parallel on the base member 20. The fixing step is a step of fixing the contact portions of the plurality of linear transmission members 30 to the base member 20.

[0062] In the fixing step, the fixing is performed such that the peeling strength of the first linear transmission member 30X with respect to the base member 20 is higher than the peeling strength of the second linear transmission member 30Y with respect to the base member 20. In the fixing step, by making the force for sandwiching the first linear transmission member 30X and the base member 20 larger than the force for sandwiching the second linear transmission member 30Y and the base member 20, the peeling strength of the first linear transmission member 30X with respect to the base member 20 is made higher than the peeling strength of the second linear transmission member 30Y with respect to the base member 20. That is, in the first fixing portion 40X and the second fixing portion 40Y, by changing the pressing force, a difference in peeling strength is obtained.

[0063] As shown in FIG. 3, when the fixing portion 40 is formed, the linear transmission member 30 and the base member 20 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 first fixing portion 40X by the first member 81 and the second member 82 is made larger than the pressure applied to the portion that becomes the second fixing portion 40Y.

[0064] 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 the horn 81 and the anvil 82 in the ultrasonic welding machine. The ultrasonic welding machine 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. Pressurization is performed 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. A horn mark may remain on the base member 20 as a fusion mark.

[0065] The method of varying the pressing force is not particularly limited and can be set as appropriate. In the example shown in FIG. 3, the support surface 82A of the anvil 82 that supports the fusion material (here, the linear transmission member 30) is an inclined surface. The inclined surface slopes downward from the middle part (here, the center) along the parallel direction of the support surface 82A toward both outer sides. As a result, the pressing force on the linear transmission member 30 on the outer side in the parallel direction becomes smaller than the pressing force on the linear transmission member 30 in the middle part in the parallel direction. However, the pressing force may be different if the inclined surface is provided on the horn 81 instead of the anvil 82. Also, the pressing force may be different if the inclined surface is provided on both the horn 81 and the anvil 82.

[0066] Moreover, the pressing force may be different due to a configuration other than the inclined surface. For example, the pressing force may be different if the anvil 82 is formed of an elastic material such as rubber or elastomer. In this case, the support surface 82A may be a horizontal surface or an inclined surface. When the anvil 82 is formed of an elastic material, the anvil 82 bends when pressed, so that the pressing force on the linear transmission member 30 on the outer side in the parallel direction can be made smaller than the pressing force on the linear transmission member 30 in the middle part.

[0067] Specifically, the anvil 82 pressed on the support surface 82A shrinks in the pressing direction and bends so as to extend in the direction orthogonal to the pressing direction (parallel direction). Therefore, the outer portion of the anvil 82 along the parallel direction extends more outward than the middle portion along the parallel direction, making it easier to release the force. On the other hand, the middle portion of the anvil 82 along the parallel direction is less likely to extend outward, so it is difficult to release the force. As a result, the pressing force on the linear transmission member 30 on the outer side in the parallel direction becomes smaller than the pressing force on the linear transmission member 30 in the middle part in the parallel direction.

[0068] In the example shown in FIG. 3, a set of horn 81 and anvil 82 are used to form the first fixing portion 40X and the second fixing portion 40Y at once. In this case, in the ultrasonic welding machine, conditions other than the pressing force on the first fixing portion 40X and the second fixing portion 40Y (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 first fixing portion 40X and the second fixing portion 40Y may be different. When the first fixing portion 40X and the second fixing portion 40Y 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 first fixing portion 40X and the formation of the second fixing portion 40Y. 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 first fixing portion 40X and the formation of the second fixing portion 40Y.

[0069] <Effect, etc.> According to the wiring member 10 configured as described above and its manufacturing method, if it can be confirmed that the peeling strength of the second linear transmission member 30Y is equal to or greater than a predetermined value, it can be ensured that the peeling strength of the first linear transmission member 30X is equal to or greater than a predetermined value without performing a peeling strength test. In addition, the positions of the first linear transmission member 30X and the second linear transmission member 30Y with respect to the base member 20 can be set at predetermined positions. That is, in the wiring member 10, the position of the second linear transmission member 30Y for which the peeling strength is to be inspected is known. Thereby, it is possible to easily confirm that the peeling strength of the plurality of linear transmission members 30 with respect to the base member 20 is equal to or greater than a predetermined value.

[0070] Further, the second linear transmission member 30Y is located outside along the parallel direction with respect to the first linear transmission member 30X. Thereby, since the second linear transmission member 30Y is located outside along the parallel direction with respect to the first linear transmission member 30X, it becomes easier to recognize the second linear transmission member 30Y and easier to grip the second linear transmission member 30Y during the test for confirming the peeling strength.

[0071] Also, a pair of second linear transmission members 30Y are located on both outer sides of the first linear transmission member 30X along the parallel direction. As a result, either of the pair of second linear transmission members 30Y on both outer sides can be inspected.

[0072] Also, the first linear transmission member 30X and the second linear transmission member 30Y have the same thickness as each other. This makes it easier to set conditions for producing a difference in peel strength between the first linear transmission member 30X and the second linear transmission member 30Y.

[0073] Also, according to the manufacturing method of the wiring member 10, in the fixing step, by making the force for sandwiching the first linear transmission member 30X and the base member 20 larger than the force for sandwiching the second linear transmission member 30Y and the base member 20, the peel strength of the first linear transmission member 30X with respect to the base member 20 is fixed to be higher than the peel strength of the second linear transmission member 30Y with respect to the base member 20. Thereby, it is possible to easily perform fixing so that the peel strength of the first linear transmission member 30X with respect to the base member 20 becomes higher than the peel strength of the second linear transmission member 30Y with respect to the base member 20.

[0074] [Appendix] FIG. 4 is a cross-sectional view showing a wiring member 110 according to a first modification.

[0075] The wiring member 110 is different from the above wiring member 10 in that a plurality of linear transmission members 30 are grouped. The wiring member 110 is provided with a first group G1 and a second group G2. The first group G1 and the second group G2 each include three or more of the plurality of linear transmission members 30. The first group G1 and the second group G2 are arranged side by side with a space therebetween on the base member 20.

[0076] The first group G1 includes a first end linear transmission member 30A, a second end linear transmission member 30B, and a first intermediate linear transmission member 30C. The first end linear transmission member 30A is located at the end on the side of the second group G2. The second end linear transmission member 30B is located at the end opposite to the first end linear transmission member 30A. The first intermediate linear transmission member 30C is located between the first end linear transmission member 30A and the second end linear transmission member 30B.

[0077] The second group G2 includes a third end linear transmission member 30D, a fourth end linear transmission member 30E, and a second intermediate linear transmission member 30F. The third end linear transmission member 30D is located at the end on the side of the first group G1. The fourth end linear transmission member 30E is located at the end opposite to the third end linear transmission member 30D. The second intermediate linear transmission member 30F is located between the third end linear transmission member 30D and the fourth end linear transmission member 30E.

[0078] The distance between the first end linear transmission member 30A and the third end linear transmission member 30D is greater than the distance between the linear transmission members 30 in each of the groups G1 and G2. The distance D1 shown in FIG. 4 is the distance between the first end linear transmission member 30A and the third end linear transmission member 30D. The distance D1 is the distance between the first group G1 and the second group G2. The distance D2 shown in FIG. 4 is the distance between the linear transmission members 30 in each of the groups G1 and G2. As shown in FIG. 4, the distance D1 is greater than the distance D2. For example, the distance D1 may be greater than the diameter of one linear transmission member 30, and the distance D2 may be smaller than the diameter of one linear transmission member 30. The distance D2 may be zero. The adjacent linear transmission members 30 within each of the groups G1 and G2 may be in contact with each other. The distances D1 and D2 are the distances at the positions where the fixing portion 40 is provided. At positions where the fixing portion 40 is not provided, the distances D1 and D2 may or may not be maintained.

[0079] Each of the first intermediate linear transmission member 30C and the second intermediate linear transmission member 30F is a first linear transmission member 30X. Each of the first end linear transmission member 30A, the second end linear transmission member 30B, the third end linear transmission member 30D, and the fourth end linear transmission member 30E is a second linear transmission member 30Y.

[0080] This wiring member 110 can be manufactured, for example, by separately forming the fixing portions 40 of the first group G1 and the fixing portions 40 of the second group G2 by the horn 81 and the anvil 82 described above. When the formation of the two fixing portions 40 is performed separately from each other, it may be performed at different timings by one set of the horn 81 and the anvil 82, or may be performed at the same timing by two sets of the horn 81 and the anvil 82.

[0081] According to this wiring member 110, in each of the groups G1 and G2, by inspecting the peel strength of the second linear transmission member 30Y, it is possible to easily confirm that the peel strength of the plurality of linear transmission members 30 with respect to the base member 20 is equal to or greater than a predetermined value. At this time, between the first group G1 and the second group G2, the materials of the fixing portions 40 (for example, the thickness of the linear transmission member 30, etc.) may be different from each other, and the predetermined peel strengths may be different from each other. In this case, within each of the groups G1 and G2, the material of the fixing portion 40 (for example, the thickness of the linear transmission member 30, etc.) and the predetermined peel strength may be unified.

[0082] In the wiring member 110, there may be one or more other third groups between the first group G1 and the second group G2. In this case, also in the third group, the linear transmission members at both ends may be the second linear transmission members, and the linear transmission member between the linear transmission members at both ends may be the first linear transmission member.

[0083] FIG. 5 is a cross-sectional view showing a wiring member 210 according to a second modified example.

[0084] The wiring member 210 is the same as the wiring member 110 in that the first group G1 and the second group G2 are provided. In the wiring member 210, each of the first end linear transmission member 30A, the first intermediate linear transmission member 30C, the third end linear transmission member 30D, and the second intermediate linear transmission member 30F is the first linear transmission member 30X. Also, each of the second end linear transmission member 30B and the fourth end linear transmission member 30E is the second linear transmission member 30Y. Therefore, the wiring member 210 is different from the wiring member 110 in that each of the first end linear transmission member 30A and the third end linear transmission member 30D is the first linear transmission member 30X instead of the second linear transmission member 30Y.

[0085] This wiring member 210 can be manufactured, for example, by the horn 81 and the anvil 82 performing the formation of the fixing portion 40 of the first group G1 and the formation of the fixing portion 40 of the second group G2 at once in a single timing. For example, by arranging the first group G1 on one inclined surface of the anvil 82 from the center of the anvil 82 and arranging the second group G2 on the other inclined surface and fusing them, the first fixing portion 40X and the second fixing portion 40Y can be formed together at once.

[0086] According to this wiring member 210, by inspecting the peeling strength of the second linear transmission member 30Y, it is possible to easily confirm that the peeling strength of the plurality of linear transmission members 30 with respect to the base member 20 is equal to or greater than a predetermined value for all the linear transmission members 30 of the first group G1 and the second group G2.

[0087] In the wiring member 210, there may be one or more other third groups between the first group G1 and the second group G2. In this case, in the third group, all the linear transmission members 30 may be the first linear transmission members 30X.

[0088] In the wiring members 10, 110, and 210, the base member 20 does not include a cover, and the sheet-like base member 20 covers the linear transmission member 30 only from one side. In the wiring members 10, 110, and 210, the other side of the linear transmission member 30 is exposed without being covered by the base member 20. In the wiring member, the base member may include a sheet and a cover that covers the linear transmission member 30 from the side opposite to the sheet. In this case, it is sufficient that the linear transmission member 30 is fixed at the contact portion to the sheet. The linear transmission member 30 may or may not be fixed at the contact portion to the cover. The linear transmission member 30 may be fixed at the contact portion only to the sheet that covers one side.

[0089] In addition, the respective configurations described in the above embodiments and respective modifications can be appropriately combined as long as they do not conflict with each other.

Description of Reference Numerals

[0090] 10, 110, 210 Wiring members 20 Base member 30 Linear transmission member 30A First-end linear transmission member (linear transmission member) 30B Second-end linear transmission member (linear transmission member) 30C First-middle linear transmission member (linear transmission member) 30D Third-end linear transmission member (linear transmission member) 30E Fourth-end linear transmission member (linear transmission member) 30F Second-middle linear transmission member (linear transmission member) 30X First linear transmission member (linear transmission member) 30Y Second linear transmission member (linear transmission member) 31 Transmission line body 32 Coating layer 40 Fixing portion 40X First fixing portion (fixing portion) 40Y Second fixing portion (fixing portion) 50 Connector 81 Horn (first member) 82 Anvil (second member) 82A Support surface G1 Group 1 G2 Group 2

Claims

1. A plurality of linear transmission members including a first linear transmission member and a second linear transmission member arranged in parallel, A base member to which the plurality of linear transmission members are fixed at the contact portions, Comprising, A wiring member, wherein the peel strength of the first linear transmission member with respect to the base member is higher than the peel strength of the second linear transmission member with respect to the base member.

2. The wiring member according to claim 1, wherein the second linear transmission member is located outside along the parallel direction of the plurality of linear transmission members with respect to the first linear transmission member.

3. The wiring member according to claim 2, wherein a pair of the second linear transmission members are located on both outer sides of the first linear transmission member along the parallel direction.

4. The wiring member according to claim 3, wherein a first group and a second group each including three or more linear transmission members among the plurality of linear transmission members are provided, the first group and the second group are arranged side by side with a space therebetween on the base member, the first group has a first end linear transmission member located at an end on the second group side, a second end linear transmission member located at an end opposite to the first end linear transmission member, and a first intermediate linear transmission member between the first end linear transmission member and the second end linear transmission member, the second group has a third end linear transmission member located at an end on the first group side, a fourth end linear transmission member located at an end opposite to the third end linear transmission member, and a second intermediate linear transmission member between the third end linear transmission member and the fourth end linear transmission member, the distance between the first end linear transmission member and the third end linear transmission member is larger than the distance between the linear transmission members in each group, each of the first end linear transmission member, the second end linear transmission member, the third end linear transmission member, and the fourth end linear transmission member is the second linear transmission member, and each of the first intermediate linear transmission member and the second intermediate linear transmission member is the first linear transmission member.

5. The wiring member according to claim 3, wherein a first group and a second group each including three or more linear transmission members among the plurality of linear transmission members are provided, the first group and the second group are arranged side by side with a space therebetween on the base member, The first group has a first end linear transmission member located at an end on the second group side, a second end linear transmission member located at an end opposite to the first end linear transmission member, and a first intermediate linear transmission member between the first end linear transmission member and the second end linear transmission member. The second group has a third end linear transmission member located at an end on the first group side, a fourth end linear transmission member located at an end opposite to the third end linear transmission member, and a second intermediate linear transmission member between the third end linear transmission member and the fourth end linear transmission member. The distance between the first end linear transmission member and the third end linear transmission member is greater than the distance between the linear transmission members in each group. Each of the second end linear transmission member and the fourth end linear transmission member is the second linear transmission member. A wiring member in which each of the first end linear transmission member, the first intermediate linear transmission member, the third end linear transmission member, and the second intermediate linear transmission member is the first linear transmission member.

6. The wiring member according to any one of Claims 1 to 5, wherein the first linear transmission member and the second linear transmission member have the same thickness as each other.

7. An arranging step of arranging a plurality of linear transmission members including a first linear transmission member and a second linear transmission member arranged in parallel on a base member, A fixing step of fixing the plurality of linear transmission members to the contact portions of the base member, characterized by comprising: In the fixing step, a manufacturing method of a wiring member, wherein the peeling strength of the first linear transmission member with respect to the base member is fixed to be higher than the peeling strength of the second linear transmission member with respect to the base member.

8. A manufacturing method of a wiring member according to Claim 7, wherein in the fixing step, by making the force for sandwiching the first linear transmission member and the base member greater than the force for sandwiching the second linear transmission member and the base member, the peeling strength of the first linear transmission member with respect to the base member is fixed to be higher than the peeling strength of the second linear transmission member with respect to the base member.

Images