Patent Publication Number: US-2023154647-A1

Title: Wiring member

Description:
TECHNICAL FIELD 
     The present disclosure relates to a wiring member. 
     BACKGROUND ART 
     Patent Document 1 discloses a wire harness in which un electrical wire is welded to a functional exterior member formed into u sheet-like shape. 
     PRIOR ART DOCUMENTS 
     Patent Document(s) 
     Patent Document 1: Japanese Patent Application Laid-Open No. 2018-137208 
     SUMMARY 
     Problem to be Solved by the Invention 
     It is desired that both sides of an electrical wire can be simply protected 
     An object is to provide a technique capable of simply protecting both sides of a wire-like transmission member 
     Means to Solve the Problem 
     A wiring member according to the present disclosure includes: a wire-like transmission member including a transmission wire body and a cowing layer covering the transmission wire body: a first sheet including a first fusion layer having contact with the wire-like transmission member und provided on one side of the wire-like transmission member, and a second sheet including a second fusion layer having contact with the wire-like transmission member and provided on another side of the wire-like transmission member, wherein the covering layer is fused to each of the first fusion layer and the second fusion layer. 
     Effects of the Invention  
     According to the present disclosure, both sides of the wire-like transmission member can be simply protected. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG.  1    is a plan view illustrating a wiring member according to an embodiment 1. 
         FIG.  2    is a cross-sectional view of the wiring member cut along a II-II line in  FIG.  1   . 
         FIG.  3    is a plan view illustrating a wiring member according to an embodiment 2. 
         FIG.  4    is a plan view illustrating a wiring member according to an embodiment 3. 
         FIG.  5    is a cross-sectional view illustrating a wiring member according to an embodiment 4. 
         FIG.  6    is a cross-sectional view illustrating a wiring member according to an embodiment 5. 
     
    
    
     DESCRIPTION OF EMBODIMENT(S) 
     Description of Embodiment of Present Disclosure 
     Embodiments of the present disclosure are listed and described firstly. 
     A wiring member according to the present disclosure is as follows. 
     (1) A wiring member includes: a wire-like transmission member including a transmission wire body and a covering layer covering the transmission wire body; a first sheet including a first fusion layer having contact with the wire-like transmission member and provided on one side of the wire-like transmission member; and a second sheet including a second fusion layer having contact with the wire-like transmission member and provided on another side of the wire-like transmission member, wherein the covering layer is fused to each of the first fusion layer and the second fusion layer. The covering  layer is fused to each of the first sheet and the second sheet, thus the first sheet and the second sheet are simply fixed to both sides of the wire-like transmission member. Accordingly, both sides of the wire-like transmission member we simply protected by the first sheet and the second sheet. 
     (2) In the wiring member according to (1), the first fusion layer and the second fusion layer may be fused to each other on a lateral side of the wire-like transmission member. Accordingly, exposure of the wire-like transmission member from between the first sheet and the second sheet can be suppressed. 
     (3) In the wiring member according to (1), the first fusion layer and the second fusion layer may not be fused to each other on u lateral side of the wire-like transmission member. Accordingly, tire wiring member can be easily manufactured. A fusion space for fusing the first sheet and the second sheet needs not be provided on the lateral side of the wire-like transmission member, thus a width dimension of the wiring member can be reduced. 
     (4) In the wiring member according to any one of (1) to (3), it is also applicable that the second sheet is provided on a whole surface of the first sheet, and the covering layer is intermittently fused to the first fusion layer and the second fusion layer along tut extension direction of the wire-like transmission member. Accordingly, a fusion position can be reduced whole protecting both sides of the wire-like transmission member in a wide region. 
     (5) In the wiring member according to any one of (1) to (3), the second sheet may be partially provided on the first sheet. Accordingly, increase in weight of the wiring member can be suppressed by providing the second sheet in a necessary portion. 
     (6) In the wiring member according to any one of (1) to (5), it is also applicable that the first sheet and the second sheet are provided in a region including an intersection part of the wire-like transmission member, the covering layer is not fused to the first  fusion layer and the second fusion layer in the intersection part, and the covering layer is fused to the first fusion layer and the second fusion layer in a position away from the intersection part. Accordingly, deformation of the wire-like transmission member in the intersection part is suppressed. 
     (7) In the wiring member according to any one of (1) to (6), another wire-like transmission member may be fused to a surface of the second sheet on a side opposite to a surface of the second sheet facing the wire-like transmission member. Accordingly, the wire-like transmission member is provided to have multiple layers. 
     Details of Embodiment of Present Disclosure 
     Specific examples of a wiring member of the present disclosure are described hereinafter with reference to the drawings. The present disclosure is not limited to these examples, but is indicated by claims, and it is intended that meanings equivalent to claims and all modifications within a scope of claims are included. 
     Embodiment 1 
     A wiring member according to an embodiment 1 is described hereinafter.  FIG.  1    is a plan view illustrating the wiring member  10  according to the embodiment 1.  FIG.  2    is a cross-sectional view of the wiring member  10  cut along a II-II line in  FIG.  1   . 
     The wiring member  10  includes a wire-like transmission member  20 , a first sheet  30 , and a second sheet  40 . 
     The wire-like transmission member  20  is a wire-like member transmitting electrical power or light, for example. For example, the wire-like transmission member  20  may be a general wire having a core wire and a covering around the core wire, or may also be a shielded wire, an electrical cable, an enamel wire, a nichrome wire, or an optical fiber cable. The wire-like transmission member  20  includes a transmission wire body  21  and a covering layer  22 . The transmission wire body  21  is a portion transmitting electrical power or light. The transmission wire body  21  corresponds to a conductor  core wire in the electrical wire, and corresponds to a core and a clad in an optical fiber cable. The covering layer  22  covers the transmission wire body  21 . The covering layer  22  is formed of a resin material extruded around the transmission wire body  21  to cover it, for example. A type of the resin material is not particularly limited, but polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), or polyethylene terephthalate (PET) can be adopted, tor example. 
     The wire-like transmission member  20  transmitting the electrical power may be various kinds of signal lines or various kinds of power lines. Some of the wire-like transmission members  20  transmitting the electrical power may be used as an antenna or coil, for example, transmitting or receiving a signal or electrical power to or from a space The wire-like transmission member  20  may be a single wire-like object or a composite object of a plurality of wire-like objects (a twisted wire and a cable made up of u plurality of wire-like objects covered by a sheath). When the wire-like transmission member  20  is a cable, a sheath is also included in the covering layer  22 . 
     It is sufficient that the number of the wire-like transmission members  20  is at least one, thus one or the plurality of wire-like transmission members  20  are also applicable. Herein, four wire-like transmission members  20  are included. When the four wire-like transmission members  20  need to be distinguished, they are referred to as the wire-like transmission members  20 A,  20 D,  20 C, and  20 D in some cases. 
     The plurality of wire-like transmission members  20  are assumed to be members connecting components in a vehicle. An end portion of the wire-like transmission member  20  extends from the sheets  30  and  40  to be located on an outer side of the sheets  30  and  40 . An intermediate portion of the wire-like transmission member  20  except for the end portion is disposed on the sheets  30  and  40 . A connector C, for example, is provided on an end portion of the wire-like transmission member  20 . This connector C is connected to a connector provided in the other side component, thus the wire-like  transmission member  20  is connected to the other side component. That is to say, the present wiring member  10  is used as the wiring member  10  electrically connecting various types of component in a vehicle, for example (or connecting them so that they can perform optical communication). The end portion of the wire-like transmission member  20  may also be located on the sheets  30  and  40 . The connector C may be fixed to the sheets  30  and  40 . 
     The first sheet  30  is provided on one side of the wire-like transmission member  20 . The first sheet  30  includes a first fusion layer  32 . The first fusion layer  32  has contact with the wire-like transmission member  20 . The first fusion layer  32  is fused to the covering layer  22  on an outermost side of the wire-like transmission member  20 . 
     Herein, the first sheet  30  has a double layer structure of the first fusion layer  32  and a first additional layer  34 . The first sheet  30  may include a single layer structure made up of the first fusion layer  32  or a structure made up of three or more layers. 
     One surface of the first fusion layer  32  is a surface having contact with the wire-like transmission member  20 . The first fusion layer  32  includes a resin material, or preferably includes a thermoplastic resin material. The resin material of the first fusion layer  32  is softened and fused to a fusion target. A type of the resin material is not particularly limited, however, PVC, PE, PP, and PET, for example, can be adopted. The resin material of the first fusion layer  32  is preferably the same as the resin material of the covering layer  22 . 
     A structure of the first fusion layer  32  is not particularly limited. For example, the first fusion layer  32  may be a sheet having an evenly filled cross-sectional surface (also referred to as a non-foam sheet or a solid sheet, for example). For example, the first fusion layer  32  is also considered a foam sheet, for example. The first fusion layer  32  is also considered a fibrous material sheet such as a braided cloth, a woven cloth, or a non-woven cloth, for example.  
     The first additional layer  34  is formed of a material different from that of the first fusion layer  32 , or has a different structure. The first additional layer  34  increases a function of the first fusion layer  32  or adds a function which the first fusion layer  32  does not have to the first sheet  30 . A material constituting the first additional layer  34  may be a material described for the first fusion layer  32  described above or metal, for example. A structure of the first additional layer  34  may be any of the structure described for the first fusion layer  32  described above. One surface of the first additional layer  34  is an outward main surface of the first sheet  30  directed to a side opposite to the wire like transmission member  20 . 
     The first fusion laser  32  and the first additional layer  34  are fixed to each other while the other surface of the first fusion layer  32  end the other surface of the first additional layer  34  have contact with each other. A fixing stale of the first fusion layer  32  and the first additional layer  34  is not particularly limited, however, fixing by fusion or adhesion is preferable. For example, when at least one of the first fusion layer  32  and/or the first additional layer  34  is a sheet having voids in a surface such as a fibrous material sheet or a foam sheet, a resin material or an adhesive agent enters the voids and the layers can be fixed to each other. Such a configuration causes so-called anchor effect, thus the first fusion layer  32  and the first additional layer  34  are rigidly fixed. 
     In the description herein, the first fusion layer  32  is a solid sheet formed of resin and the first additional layer  34  is a fibrous material sheet. In the description herein, the first fusion layer  32  and the first additional layer  34  are fused to each other. That is to say, the resin of the first fusion layer  32  enters between the fibers of the first additional layer  34  while having followability, and is then hardened. Accordingly, a state where the resin of the first fusion layer  32  enters between the fibers of the first additional layer  34  is maintained, and the first fusion layer  32  and the first additional layer  34  are rigidly fixed. 
     The first fusion layer  32  and the first additional layer  34  are formed to have the  same size (the same planar shape). One of the first fusion layer  32  and the first additional layer  34  may also be formed to be larger than the other one thereof. The first fusion layer  32  and the first additional layer  34  are wholly fixed at a region where they have contact with each other. The first fusion layer  32  and the first additional layer  34  may also be fixed only at a part of a region where they have contact with each other. 
     The first sheet  30  may be a flexible member. For example, the first fusion layer  32  is a resin layer having an evenly filled cross-sectional surface made up of flexible resin such as flexible PVC, as a material, the first additional layer  34  is a non-woven cloth made up of PET as a material, and the first sheet  30  is a flexible member. For example, the first sheet  30  may have a plastic property so as to be able to follow bending of the wire-like transmission member  20 . It is also applicable that the wiring member  10  can be bended in a thickness direction (bending so that a fold line follows a main surface of the first sheet  30 ) in a portion where the first sheet  30  is provided. The first sheet  30  may be a member which cannot be curved in the thickness direction. The first sheet  30  may be a member which is not broken but can be bended at a time of being bended in the thickness direction. The first sheet  30  may be a member which cannot be bended but is broken at a time of being bended in the thickness direction. The first sheet  30  may have rigidness so that it cannot follow bending of the wire-like transmission member  20 , 
     The second sheet  40  is provided on the other side of the wire-like transmission member  20 . The second sheet  40  includes a second fusion layer  42 . The second fusion layer  42  has contact with the wire-like transmission member  20 . The second fusion layer  42  is fused to the covering layer  22  on an outermost side of the wire-like transmission member  20 . 
     Herein, the same type of sheet material as that of the sheet material constituting the first sheet  30  is adopted as a sheet material constituting the second sheet  40 . The second sheet  40  has a double layer structure of the second fusion layer  42  and a second  additional layer  44 . The second fusion layer  42  is a layer having the same material and structure as the first fusion layer  32 . The second additional layer  44  is a layer having the same material and structure as the first additional layer  34 . The sheet material constituting the second sheet  40  may be a different type of sheet material as that constituting the first sheet  30 . The second sheet  40  may include a single layer structure made up of the second fusion layer  42  or a structure made up of three or more layers 
     The first sheet  30  and the second sheet  40  keep the plurality of wire-like transmission members  20  in a state of being arranged side by side. The wiring member  10  is thereby flatly formed. The first sheet  30  and the second sheet  40  keep the wire-like transmission member  20  in a state of extending along a predetermined route. A route of the wire-like transmission member  20  is a route along which the wire-like transmission member  20  extends on an assembly target (for example, a vehicle) when the wiring member  10  is assembled to the assembly target. Accordingly, when the wiring member  10  is assembled to a vehicle, for example, the wire-like transmission member  20  is easily kept in a state of following a predetermined route in the vehicle. 
     Herein, a route of the wire-like transmission member  20  includes a bending part  23  and a branch part  24 . The bending part  23  is a portion where the plurality of wire-like -transmission members  20 A,  20 B,  20 C, and  20 D are bended while being in parallel to each other. The branch part  24  is a portion where some wire-like transmission members  20 A and  20 B are branched to extend in a direction different from the other some wire-like transmission members  20 C and  20 D. 
     Intersection parts  25  and  26  where the plurality of wire-like transmission member  20  intersect with each other are provided. Herein, the intersection parts  25  and  26  include a displacement intersection part  25  and a branch intersection part  26 . The displacement intersection part  25  is a portion where the wire-like transmission members  20 A and  20 B parallelly arranged intersect with each other to change their arrangement  order. The branch intersection part  26  is a portion where some wire-like transmission member  20 C is branched from the other some wire-like transmission members  20 A and  20 B. 
     Herein, the first sheet  30  is formed into a shape following a route of the wire-like transmission member  20 . Specifically, the first sheet  30  includes a portion bended in accordance with the bending part  23  of the wire-like transmission member  20 . The first sheet  30  includes a portion branched in accordance with a branched route of the wire-like transmission member  20 . The first sheet  30  may be formed into one large rectangular shape, for example. 
     Herein, a planar shape of the second sheet  40  is different from that of the first sheet  30 . The second sheet  40  is partially provided on the first sheet  30 . Specifically, herein, the second sheet  40  includes a plurality of sheet parts  41 . Each of the plurality of sheet parts  41  are provided to cover a planar region different from each other on the first sheet  30 . The plurality of sheet parts  41  are provided at intervals. In the example illustrated in  FIG.  1   , five sheet parts  41 A,  41 B,  41 C,  41 D, and  41 E are provided. Each sheet part  41  is provided in a straight part. The sheet part  41  is provided away from the bending part  23 . The sheet part  41  is not provided in bending part  23 . The sheet part  41  is provided away from the intersection parts  25  and  26 . The sheet part  41  is not provided in the intersection parts  25  and  26 . 
     The sheet parts  41 A and  41 B are provided in positions on both sides of the bending part  23 . The sheet parts  41 C and  41 D are provided in positions on both sides of the displacement intersection part  25 . The sheet parts  41 B,  41 C, and  41 E are provided in position sandwiching the branch part  24 . 
     The covering layer  22  is fused to the first fusion layer  32  and the second fusion layer  42 . The covering layer  22 , the first fusion layer  32 , and the second fusion layer  42  are intermittently fused along the extension direction of the wire-like transmission  member  20 . In  FIG.  1    and  FIG.  2   , a portion where the covering layer  22  and the first fusion laser  32  are fused is illustrated as a fusion part WP 1  and a portion where the covering layer  22  and the second fusion layer  42  are fused is illustrated as a fusion part WP 2 . The fusion part WP 1  and the fusion part WP 2  are located in the same position along the extension direction of the wire like transmission member  20 . The wire-like transmission member  20  is fused to the second fusion laser  42  on a side opposite to a side thereof fused to the first fusion layer  32 . The fusion parts WP 1  and WP 2  are provided in positions in ends of the sheet pons  41 , respectively. 
     A means of forming the fusion state is not particularly limited. For example, the wire-like transmission member  20 , the first sheet  30 , and the second sheet  40  may be fused to each other by ultrasonic fusion. Resin, for example, is melted by friction heat caused by the ultrasonic vibration applied from a horn  80  to a work while the horn  80  and an anvil  82  in an ultrasonic fusion machine sandwich the work, and thus the wire-like transmission member  20 , the first sheet  30 , and the second sheet  40  are fused. Adoptable are various types of fusion means such as heating pressurizing fusion, hot air fusion, and high frequency fusion. When the fusion state is formed by these means, the wire-like transmission member  20 , the first sheet  30 , and the second sheet  40  are in a state of fusion fixation by those means. Specifically, when the wire-like transmission member  20 , the first sheet  30 , and the second sheet  40  are fused by ultrasonic fusion, the fusion parts WP 1  and WP 2  are ultrasonic fusion parts, few example. 
     The first fusion layer  32  and the second fusion layer  42  are not fused on a lateral side of the wire-like transmission member  20 . The lateral side of the wire-like transmission member  20  is a portion of the plurality of wire-like transmission members  20  located on an outer side of two wire-like transmission members  20 , which are located on an outermost side along a parallel direction, along a parallel direction. The first fusion layer  32  and the second fusion layer  42  do not have contact with each other on the  lateral side of the wire-like transmission member  20 . 
     Herein, the plurality of wire-like transmission members  20  are provided at intervals along the parallel direction. The plurality of wire-like transmission members  20  may also be parallelly arranged while having contact with each other without intervals therebetween along the parallel direction. 
     The first fusion layer  32  and the second fusion layer  42  are not fused between the wire-like transmission members  20 . The first fusion layer  32  and the second fusion layer  42  do not have contact with each other between the wire-like transmission members  20 . The first fusion layer  32  and the second fusion layer  42  may have contact with each other between the wire-like transmission members  20 . The first fusion layer  32  and the second fusion layer  42  may be fused to each other between the wire-like transmission members  20 . 
     Effect Etc. of Embodiment 1 
     According to the wiring member  10  having the above configuration, the covering layer  22  is fused to each of the first sheet  30  and the second sheet  40 , thus the first sheet  30  and the second sheet  40  are simply fixed to both sides of the wire-like transmission member  20 . Accordingly, both sides of the wire-like transmission member  20  are simply protected by the first sheet  30  and the second sheet  40 . 
     The first fusion layer  32  and the second fusion layer  42  are not fused on the lateral side of the wire-like transmission member  20 . Accordingly, the wiring member  10  can be easily manufactured. A fusion space for fusing the first sheet  30  and the second sheet  40  needs not be provided on the lateral side of the wire-like transmission member  20 , thus a width dimension of the wiring member  10  can be reduced. 
     The second sheet  40  is partially provided on the first sheet  30 . Accordingly, increase in weight of the wiring member  10  can be suppressed by providing the second sheet  40  in a necessary portion.  
     Embodiment 2 
     A wiring member according to an embodiment 2 is described.  FIG.  3    is a plan view illustrating a wiring member  110  according to the embodiment 2. In the following description, the same reference numerals are assigned to the similar constituent elements described above, and the description thereof will be omitted. 
     A portion where a second sheet  140  is provided in the wiring member  110  according to the present example is different from a portion where the second sheet  40  is provided in the wiring member  10  described above. The second sheet  140  includes one sheet part  141 . The sheet part  141  is provided in a region including the intersection parts  25  and  26 . Thus the first sheet  30  and the second sheet  140  are provided in a region including the intersection parts  25  and  26  of the wire-like transmission member  20 . 
     The covering layer  22  is not fused to the first fusion layer  32  and the second fusion layer  42  in the displacement intersection part  25 . The covering layer  22  is fused to the first fusion layer  32  and the second fusion layer  42  in a position away from the displacement intersection part  25 . The covering layer  22  is not fused to the first fusion layer  32  and the second fusion layer  42  in the branch intersection pan  26 . The covering layer  22  is fused to the first fusion layer  32  and the second fusion layer  42  in a position away from the branch intersection part  26 . Accordingly, the covering layer  22  is not fused to the first fusion layer  32  and the second fusion layer  42  in the intersection parts  25  and  26 . The covering layer  22  is fused to the first fusion layer  32  and the second fusion layer  42  in a position away from the intersection puts  25  and  26 . Accordingly, deformation of the wire-like transmission member  20  in the intersection parts  25  and  26  is suppressed. 
     In the wiring member  110 , the fusion part WP 1  is provided in a region where the first sheet  30  is provided but the second sheet  40  is not provided. A position of the fusion port WP 1  in the wiring member  110  is the same as that of the fusion part WP 1  in  the wiring member  10 . 
     Embodiment 3 
     A wiring member according to an embodiment 3 is described.  FIG.  4    is a plan view illustrating a wiring member  210  according to the embodiment 3. 
     A planar shape of a second sheet  240  in the wiring member  210  according to the present example is different from that of the second sheets  40  and  140  in the wiring members  10  and  110  described above. Herein, the second sheet  240  is wholly provided on the first sheet  30 . The first sheet  30  and the second sheet  240  have the same planar shape. At this time, the covering layer  22  is intermittently fused to the first fusion layer  32  and the second fusion layer  42  along the extension direction of the wire-like transmission member  20 . Accordingly, a fusion position can be reduced whole protecting both sides of the wire-like transmission member  20  in a wide region. 
     Herein, the first sheet  30  and the second sheet  240  are provided in a region including the bending part  23  of the wire-like transmission member  20 . The covering layer  22  is not fused to the first fusion layer  32  and the second fusion layer  42  in the bending part  23 . The covering layer  22  is fused to the first fusion layer  32  and the second fusion layer  42  in a position away from the bending part  23 . The covering layer  22  is fused to the first fusion layer  32  and the second fusion layer  42  in positions on both sides of the bending part  23 . 
     Positions of the fusion parts WP 1  and WP 2  in the wiring member  210  are the same as those in the wiring member  10 . Also in the present example, the fusion parts WP 1  and WP 2  are not provided in the intersection parts  25  and  26 , and the fusion parts WP 1  and WP 2  are provided in position away from the intersection parts  25  and  26  (end portions of a straight part herein). 
     Embodiment 4 
     A wiring member according to an embodiment 4 is described.  FIG.  5    is a  cross-sectional plan view illustrating a wiring member  310  according to the embodiment 4. 
     The wiring member  310  according to the present example is different from the wiring members  10 ,  110 , and  210  in that the first sheet  330  and the second sheet  340  are fused to each other. Each of the first sheet  330  and the second sheet  340  has a portion protruding to a lateral side of the wire-like transmission member  20 . This protruding part serves as the fusion space. The first fusion layer  32  and the second fusion layer  42  in the fusion space are fused on the lateral side of the wire-like transmission member  20 . A fusion part WP 3  of the first fusion layer  32  and the second fusion layer  42  is provided on a lateral side of the wire-like transmission member  20 . Accordingly, exposure of the wire-like transmission member  20  from between the first sheet  330  and the second sheet  340  can be suppressed. In  FIG.  5   , the fusion part WP 3  is provided on both lateral sides of the wire-like transmission member  20 . The fusion part WP 3  may be provided on only one lateral side of the wire-like transmission member  20 . 
     The fusion part WP 3  may be sequentially provided over a whole region along the extension direction of the wire-like transmission member  20 . The fusion part WP 3  may be intermittently provided along the extension direction of the wire-like transmission member  20  in the manner similar to the fusion parts WP 1  and WP 2 . In this case, the fusion part WP 3  may be provided in the same position as the fusion parts WP 1  and WP 2 , or may also be provided in a different position. 
     The first sheet  330  and the second sheet  340  are not fused to each other between the wire-like transmission members  20 . The first sheet  330  and the second sheet  340  may be fused to each other between the wire-like transmission members  20 . 
     Embodiment 5 
     A wiring member according to an embodiment 5 is described.  FIG.  6    is a cross-sectional plan view illustrating a wiring member  410  according to the embodiment  
     The wiring member  410  according to the present example is different from the wiring members  10 ,  110 ,  210 , and  310  described above in that the wiring member  410  further includes the other wire-like transmission member  50 . 
     The other wire-like transmission member  50  is fused to a surface of the second sheet  440  on a side opposite to a surface thereof facing the wire-like transmission member  20 . Accordingly, the wire-like transmission members  20  and  50  are provided to have multiple layers. Specifically, the other wire-like transmission member  50  includes a transmission wire body  51  and a covering layer  52  in the manner similar to the wire-like transmission member  20 . The fusion layer is provided on a surface of the second sheet  440  having contact with the other wire-like transmission member  50 . In the example illustrated in  FIG.  6   , the second sheet  440  has a triple layer structure of the second fusion layer  42 , the second additional layer  44 , and a third fusion layer  46 . The covering layer  52  of the other ire-like transmission member  50  is fixed to the third fusion layer  46 . It is applicable that the second sheet  440  has a single layer structure made up of the second fusion layer  42 , and the wire-like transmission members  20  and  50  may be fused to both surfaces of the second fusion layer  42 . 
     The second sheet  440  may cover a part of the first sheet  30  in the manner similar to the second sheets  40  and  140 , or may also cover a whole surface of the first sheet  30  in the manner similar to the second sheet  240  described above. 
     In the example illustrated in  FIG.  6   , the other wire-like transmission member  50  is located between the wire-like transmission members  20  or a lateral side of the wire-like transmission member  20  so as not to be overlapped with the wire-like transmission member  20 . The fusion part WP 4  of the covering layer  52  of the other wire-like transmission member  50  and the third fusion layer  46  deviates in a parallel direction of the fusion parts WP 1  and WP 2  and the wire-like transmission member  20 . The other  wire-like transmission number  50  may be located to be overlapped with the wire-like transmission member  20 . The fusion part WP 4  may be located in the same position along the parallel direction of the fusion parts WP 1  and WP 2  and the wire-like transmission member  20 . 
     The number of the other wire-like transmission members  50  is smaller than that of the wire-like transmission members  20 . The number of the wire-like transmission members  50  may be equal to or larger than that of the wire-like transmission members  20 . 
     A route of the wire-like transmission member  20  and a route of the other wire-like transmission member  50  can be appropriately set. The other wire-like transmission member  50  may also extend along the same route as the wire-like transmission member  20 . The other wire-like transmission member  50  may also extend along a route different from that of the wire-like transmission member  20 . For example, it is also applicable that the other wire-like transmission member  50  extends along the same route as the wire-like transmission member  20  in a part of a section, and extends along a route different from that of the wire-like transmission member  20  in the other part of the section. The wire-like transmission member  20  and the other wire-like transmission member  50  may be fused to the second sheet  440  at least in a section extending along the same route. 
     One end portion and the other end portion of the other wire-like transmission member  50  may be connected to the same connector C as that to which one end portion und the other end portion of the wire-like transmission member  20  are connected. One end portion and the other end portion of the other wire-like transmission member  50  may be connected to a connector C different from that to which one end portion and the other end portion of the wire-like transmission member  20  are connected. It is also applicable that one end portion of the oilier wire-like transmission member  50  is connected the same connector C us that to which one end portion of the wire-like transmission member  20  is  connected, and the other end portion of the other wire-like transmission member  50  is connected to a connector different from that to which the other end portion of the wire-like transmission member  20  is connected. 
     In the example illustrated in  FIG.  6   , the other wire-like transmission member  50  on a side opposite to the second sheet  440  is exposed. The third sheet covering the other wire-like transmission member  50  from a side opposite to the second sheet  440  may be provided. The third sheet may be fused to the other wire-like transmission member  50 . 
     Modification Example 
     In the above description, the fusion parts WP 1  and WP 2  are intermittently provided along the extension direction of the wire-like transmission member  20 , however, this configuration is not necessary. The fusion parts WP 1  and WP 2  may be sequentially provided over a whole region along the extension direction of the wire-like transmission member  20 . 
     The plurality of wiring members  10  may be connected to a lateral side to constitute a wiring module. For example, the first sheets  30  or the second sheets  40  of the plurality of wiring members  10  may be fused to each other. A type of the wire-like transmission men her may be different between one wiring member and the other one wiring member in the plurality of wiring members connected to each other. For example, it is also applicable that a plurality of thin wire-like transmission members are disposed in one wiring member, and a plurality of thick wire-like transmission members are disposed in the other one wiring member. Accordingly, the thickness of the wire-like transmission member is uniformed in each wiring member, thus the first fusion layer  32  and the second fusion layer  42  can have favorably contact with the wire-like transmission member. For example, it is also applicable that a wire-like transmission member having a covering layer made of PVC is disposed in one wiring member, and a wire-like transmission member having a covering layer made of polyolefin is disposed in the other  one wiring member. Accordingly, a material of the covering layer of the wire-like transmission member is uniformed in each wiring member. The first fusion layer  32  and the second fusion layer  42  are formed by materials in accordance with the covering layer in each wiring member, thus can be favorably fused to the wire-like transmission member. 
     The configurations described in the embodiments and modification examples thereof can be appropriately combined as long as they are not contradictory. 
     EXPLANATION OF REFERENCE SIGNS 
       10 ,  110 ,  210 ,  310 ,  410  wiring member 
       20 ,  20 A,  20 B,  20 C,  20 D,  50  wire-like transmission member 
       21 , 51  transmission wire body 
       22 ,  52  covering layer 
       23  bending part 
       24  branch part 
       25  displacement intersection part 
       26  branch intersection part 
       30 ,  330  first sheet 
       32  first fusion layer 
       34  first additional layer 
       40 ,  140 ,  240 ,  340 ,  440  second shed 
       41 ,  41 A,  41 B,  41 C,  41 D,  41 E,  141  sheet part 
       42  second fusion layer 
       44  second additional layer 
       46  third fusion layer 
       80  horn 
       82  anvil 
     WP 1 , WP 2 , WP 3 , WP 4  fusion part