Patent Publication Number: US-2022215984-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 an electrical wire is welded to a functional exterior member formed into a sheet-like shape. 
     PRIOR ART DOCUMENTS 
     Patent Documents 
     Patent Document 1: Japanese Patent Application Laid-Open No. 2018-137208 
     SUMMARY 
     Problem to be Solved by the Invention 
     It is desired that a flat wiring member such as a wire harness described in Patent Document 1 is held by a vacuum suction and transported. 
     Thus, an object is to provide a wiring member which can be easily held by a vacuum suction. 
     Means to Solve the Problem 
     A wiring member according to the present disclosure is a wiring member including: a plurality of wire-like transmission members; and a sheet to which the plurality of wire-like transmission members arranged side by side are fixed, wherein the sheet includes u first sheet covering the plurality of wire-like transmission members from one side and a second sheet covering the plurality of wire-like transmission members from another side, and a planar surface region part is provided on an outer side of the second sheet. 
     Effects of the Invention 
     According to the present disclosure, the wiring member is easily held by a vacuum suction, 
    
    
     
       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 along a II-II line in  FIG. 1 . 
         FIG. 3  is a cross-sectional view along at III-III line in  FIG. 1 . 
         FIG. 4  is a cross-sectional view illustrating a wiring member according to an embodiment  2 . 
         FIG. 5  is a Cross-sectional view illustrating a modification example of the wiring member. 
     
    
    
     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 plurality of wire-like transmission members; and a sheet to which the plurality of wire-like transmission members arranged side by side are fixed, wherein the sheet includes a first sheet covering the plurality of wire-like transmission members from one side and a second sheet covering the plurality of wire-like transmission members from another side, and a planar surface region part is provided on an outer side of the second sheet. Accordingly, when a vacuum suction pad is applied to a planar surface region part, the planar surface region part and the vacuum suction pad are firmly attached to each other in an airtight state easily. Accordingly, an air leakage is suppressed at a time of the vacuum suction, thus the wiring member is easily held by the vacuum suction. It is sufficient that the vacuum in the vacuum suction in the present specification is negative with respect to an atmospheric pressure as with a normal vacuum suction, thus needs not be vacuum in a strict sense. 
     (2) it is also applicable that the second sheet is formed to be harder than the first sheet, a depression is formed on an outer surface of the second sheet, and a bottom surface of the depression forms the planar surface region part. Accordingly, even when the second sheet is bended, the planar surface region part is provided. 
     (3) The wiring member may further include a plate-like material provided on an outer surface of the second sheet, wherein an outer surface of the plate-like material forms the planar surface region part. Accordingly, the planar surface region part is easily kept in a planar state. 
     (4) The plate-like material may be formed to be harder titan the second sheet. Accordingly, even when the second sheet is bended, the planar surface region part is provided. 
     (5) The plurality of wire-like transmission members located on an inner side of the planar surface region part may have an identical outer diameter. Accordingly, the second sheet is hardly bended. 
     (6) A surface roughness of the planar surface region part may be smaller than a surface roughness of a part of the second sheet where the planar surface region part is not located. Accordingly, the planar surface region part and the vacuum suction pad are firmly attached to each other in an airtight state easily. 
     (7) The planar surface region part may be provided in a position exposed in the wiring member in a folded state. Accordingly, the vacuum suction pad can be applied to the planar surface region part in a state where the wiring member is folded, and the wiring member can be transported in a state of being folded. 
     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 invention 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 a wiring member  10  according to the embodiment 1.  FIG. 2  is a cross-sectional view along a II-II line in  FIG. 1 .  FIG. 3  is a cross-sectional view along a III-III line in  FIG. 1 . In  FIG. 1 , a terminal portion on a left side indicates a state before the wiring member  10  is folded, and a terminal portion on a right side indicates a state after the wiring member  10  is folded. When the terminal portion on the right side is developed, it will be the same as the terminal portion on the left side. When the terminal portion on the left side is folded, it will he the same as the terminal portion on the right side. The wiring member  10  is normally transported to an assembly operation position to be assembled to a vehicle in a folded state, developed in the assembly operation position, and assembled to the vehicle. In the description, at this time, the wiring member  10  is sucked by a vacuum suction pad  82  provided on a tip end of a robot arm  80 , for example, and raised to be transported in a state of being folded and disposed on a table  70 . 
     The wiring member  10  is wholly formed into a flat state. The wiring member  10  includes a plurality of wire-like transmission members  20  and a sheet  30 . 
     It is sufficient that the wire-like transmission member  20  is a wire-like member transmitting an electrical power or light, for example. For example, the wire-like transmission member  20  be a general wire having a core wire and a covering around the care wire, or may also be a bare conductive wire, a shielded wire, an enamel wire, a nichrome wire, or an optical fiber. 
     The wire-like transmission member  20  transmitting the electrical power may be various kinds of signal lines or various kinds of power lines. The wire-like transmission member  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  includes a transmission wire body transmitting an electrical power or light and a covering for covering the transmission wire body. When the wire-like transmission member  20  is a general wire, the transmission wire body is a core wire  22 , and the covering is an insulating covering  24 . The core wire  22  may be made up of a plurality of single wires. The plurality of single wires may be stranded. In the example illustrated in  FIG. 2 , the plurality of wire-like transmission members  20  having the same diameter and structure are disposed on one sheet  30 , however, it is sufficient that the diameter and the structure of each of the plurality of wire-like transmission members  20  are appropriately set, thus the wire-like transmission members  20  each having a different diameter and a structure, for example, may be disposed on the same sheet  30 . 
     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 a plurality of wire-like objects covered by a sheath). A terminal and a connector C, for example, arc appropriately provided in accordance with a connection state of the wire-like transmission member  20  and the other side member in an end portion of the wire-like transmission member  20 . 
     In the example illustrated in  FIG. 1 , the plurality of wire-like transmission members  20  extend along a H-shaped route on the sheet  30 . The wiring member  10  is thereby provided with four terminal portions. Needless to say, the route of the plurality of wire-like transmission members  20  is not limited thereto. It is sufficient that the plurality wire-like transmission members  20  are wired in a state of following a route in a vehicle on the sheet  30 . The plurality of wire-like transmission members  20  are wired in the state of following the route in the vehicle on the sheet  30 , thus the route of the plurality of wire-like transmission members  20  is regulated, and the plurality of wire-like transmission members  20  can be assembled to the vehicle easily. In the description hereinafter, in a part of the wiring member  10 , a direction along a longitudinal direction of the wire-like transmission member  20  is simply referred to as a longitudinal direction, and a direction along a direction in which the plurality of wire-like transmission members  20  are arranged is simply referred to as a parallel direction. 
     The plurality of wire-like transmission members  20  arranged side by side are fixed to the sheet  30 . The sheet  30  keeps a wiring state of the wire-like transmission members  20 . The sheet  30  includes a first sheet  32  and a second sheet  34 . The first sheet  32  covers the plurality of wire-like transmission members  20  from one side. The second sheet  34  covers the plurality of wire-like transmission members  20  from the other side (a side opposite to the first sheet  32 ). An intermediate portion in the wire-like transmission member  20  is surrounded by the first sheet  32  and the second sheet  34 . Accordingly, suppressed is an exposure of the intermediate portion in the wire-like transmission member  20 , The sheet  30  is formed into a shape along a route of the plurality of wire-like transmission members  20 . A band-like portion extends along the route of the plurality of wire-like transmission members  20  to form the sheet  30 . A width dimension of the band-like portion is larger than. an interval between the wire-like transmission member  20  on a side of one side portion along the parallel direction and the wire-like transmission member  20  on a side of the other side portion. 
     Herein, the wire-like transmission member  20  is fixed to only the first sheet  22  in the first sheet  32  and the second sheet  34 . A fixing state of the wire-like transmission member  20  and the fist sheet  32  is not particularly limited, however, bonding or welding may also be applied. The bonding indicates that two members are bonded to each other via an inclusion such as an adhesive agent or a double-sided adhesive tape. The welding indicates that resin contained in at least one of two members are melted and the two members are welded to each other without an intervention of an inclusion. Herein, at least one of resin contained in the insulating covering  24  of the wire-like transmission member  20  and resin contained in the first sheet  32  is melted and bonded to the other side member, thus the wire-like transmission member  20  and the first sheet  32  are fixed to each other. 
     Materials constituting the first sheet  32  and the second sheet  34  are not particularly limited, however, the first sheet  32  and second sheet  34  are formed of materials containing resin of polyvinyl chloride (PVC), polyethylene terephthalate (PET), polypropylene (PP), or nylon, for example. The first sheet  32  and the second sheet  34  may be a fibrous material having fiber such as a non-woven cloth, a woven fabric, or a knitting fabric or a non-fiber material, for example. The non-fiber material may be a solid member with an inner portion evenly filled or a foam made up by foam molded resin. The first sheet  32  and the second sheet  34  may contain a material such as metal, for example. 
     The first sheet  32  and the second sheet  34  may be a single layer or may be a plurality of stacked layers. When the first sheet  32  and the second sheet  34  are made up of the plurality of stacked layers, it is considered that a resin layer and a resin layer are stacked, for example. It is also considered that a resin layer and a metal layer are slacked, for example. The first sheet  32  and the second sheet  34  may be made up of a non-fiber material layer and a non-fiber material layer overlapped with each other, a non-fiber material layer and a fiber material layer overlapped with each other, or a fiber material layer and a fiber material layer overlapped with each other. 
     The first sheet  32  has a double-layered structure, for example. A first layer in the first sheet  32  is a layer appropriate for fixation to the wire-like transmission member  20 . For example, the first layer is formed into a solid member, with an inner portion evenly filled, of the same material as that of the insulating covering  24  of the wire-like transmission member  20 . The wire-like transmission member  20  is fixed on the first layer. The second layer is a layer enhancing a function of the sheet  30 . The second layer is a non-woven cloth, for example. The first layer may be wholly or partially provided on the second layer. For example, the first layer may be provided only in an intermediate portion along a width direction of the second layer (a parallel direction of the wire-like transmission member  20 ), and needs not he provided in a side edge portion. For example, the first layer may be provided at intervals along the longitudinal direction of the second layer (the longitudinal direction of the wire-like transmission member  20 ). The first sheet  32  is easily bended. The first sheet  32  is soft enough to be able to follow bending of the wire-like transmission member  20  when the wiring member  10  is folded. 
     The second sheet  34  has a single-layered. structure, for example. The second sheet  34  has higher rigidity than the first sheet  32 . The second sheet  34  is a solid member of nylon as a material with an inner portion evenly filled, for example. The wire-like transmission member  20  is not fixed to the second sheet  34 . An edge portion of the second sheet  34  is fixed to the first sheet  32 . A fixing state of the first sheet  32  and the second sheet  34  is not particularly limited, however, welding or bonding is also applicable. The second sheet  34  may be fixed to the first layer or the second layer in the first sheet  32 . 
     The wiring member  10  is provided with easy-bending parts  12  and  14 . The easy-bending parts  12  and  14  are provided in a region where the sheet  30  is located. The easy-bending part  12  is a part where the second sheet  34  is provided at intervals along the longitudinal direction of the wire-like transmission member  20 . That is to say, the easy-bending part  12  is a part where the second sheet  34  is not located along the longitudinal direction of the wire-like transmission member  20 . Described above is the configuration that the second sheet  34  is not included, however, the configuration is not limited thereto. For example, it is sufficient that rigidity of the second sheet in a position corresponding to the easy-bending part is set to be lower than the second sheet in a region except for the easy-bending part. That is to say, the easy-bending part  14  is a part formed into a shape capable of partially bending the second sheet  34  easily. In the example illustrated in  FIG. 1 , an accordion-like part is formed as the shape capable of bending the second sheet  34  easily. The accordion-like part is a part formed into an accordion-like shape in which a mountain and a valley are alternately and sequentially loaned in the longitudinal direction of the wire-like transmission member  20 . When a part on a terminal portion side is bended at positions of the easy-bending parts  12  and  14 , the wiring member  10  is folded. 
     One example of the easy-bending part is described above, however, it is sufficient that the easy-bending part has a shape of being partially bended easily such as a fold line (not shown), for example, thus the shape thereof is not particularly limited. Also applicable is a shape in which a slit (not shown) is provided not in the second sheet, but in tire first sheet to form the easy-bending part. 
     A vacuum suction position is set in the wiring member  10 . In the example illustrated in  FIG. 1 , a region A illustrated by a dashed-two dotted line is the vacuum suction position. In the example illustrated in  FIG. 1 , two vacuum suction positions are set. The vacuum suction position is set in a position where the wiring member  10  is hardly inclined when the wiring member  10  is vacuum-sucked at the position and raised and can substantially maintain balance. The number of vacuum suction positions in one wiring member  10  is not limited to two. For example, when the wiring member  10  is relatively small, one vacuum suction position may be provided. For example, when the wiring member  10  is relatively large, three or more vacuum suction positions may he provided. When the wiring member  10  is folded, it is sufficient that the vacuum suction position is provided in a position exposed in the wiring member  10  in a folded state. The vacuum suction is described as the suction configuration for convenience, however, it is obvious that the suction configuration is not limited to the vacuum suction. It is sufficient that negative pressure large enough to suck and raise the wiring member  10  is applied. 
     A planar surface region part  36  is provided on an outer side of the second sheet  34 . The planar surface region part  36  preferably has a smaller surface roughness than a part of the second sheet  34  which is not the planar surface region part  36 . The planar surface region part  36  has a small surface roughness, thus air leakage hardly occurs when the vacuum suction pad  82  is applied to the planar surface region part  36 . The surface roughness can be measured with a contact-type (stylus) surface roughness tester, for example. In this case, an arithmetic average of measurement values measured ten times for each sample can he set to a surface roughness of each sample based on JIS B 0633:2001 standard, for example. A commercially available surface roughness tester (for example, Form Talysurf PGI 430 manufactured by AMETEK, Inc.) can he used as the surface roughness tester. The planar surface region part  36  is provided in the vacuum suction position. Herein, a depression  38  is formed on an outer surface of the second sheet  34 . A bottom surface of the depression  38  forms the planar surface region part  36 . 
     In the second sheet  34 , a level difference occurs in the outer surface at least in a portion where the depression  38  is not located. The level difference may occur by fixing the first sheet  32  and the second sheet  34 . The level difference may also occur by a difference in outer diameter of the plurality of wire-like transmission members  20 . The depression  38  is formed to eliminate the level difference in a portion to be the planar surface region part  36 . 
     The depression  38  is formed to have a groove-like shape extending along the parallel direction. There is a sidewall part extending along the parallel direction and directed to the longitudinal direction on an edge of the depression  38 . There is no sidewall part extending along the longitudinal direction on the edge of the depression  38 . 
     The second sheet  34  has a thickness in which the depression  38  can be formed. Even when the depression  38  is formed in the second sheet  34 , a portion covering the plurality of wire-like transmission members  20  remains in the second sheet  34 . A depth dimension of the depression  38  is set in accordance with a dimension along parallel in planar surface region part  36  is set to a dimension in accordance with the vacuum suction pad  82 . 
     A part of the wiring member  10  where the planar surface region part  36  described above is provided is defined as a first region part. A part of the wiring member  10  adjacent to the first region part is defined as a second region part. The second region part is a region where the sheet  30  is located. That is to say, the first region part and the second region part are regions adjacent to each other in a region in the wiring member  10  where the sheet  30  is located. For example, the second region part is a part illustrated in  FIG. 3 . The planar surface region part  36  is not provided in the second region part. The outer surface of the second sheet  34  is a planar surface also in the second region part. Even in this case, a region of the planar surface region part  36  in the first region part is larger than a planar surface region in the second region part when seen along the parallel direction. The second region part rosy not include a planar surface. 
     The plurality of wire-like transmission members  20  located on an inner side of the planar surface region part  36  have the identical outer diameter. Accordingly, a part of a material of the second sheet  34  covering the plurality of wire-like transmission members  20  in a position of the planar surface region part  36  tends to be wholly a planar surface. Accordingly, increase in depth dimension of the depression  38  can he suppressed. Accordingly, increase in thickness dimension of the material of the second. sheet  34  can he suppressed. 
     Operation Etc. 
     When the vacuum suction pad  82  is applied to the planar surface region part  36 , the vacuum suction pad  82  has contact with the planar surface region part  36  as illustrated in  FIG. 2 . At this time, suppressed is a protrusion of the vacuum suction pad  82  from the planar surface region part  36  also in the parallel direction. Accordingly, the planar surface region part  36  and the vacuum suction pad  82  are firmly attached to each other in an airtight state easily, and an air leakage (vacuum leakage) at the time of the vacuum suction is suppressed. 
     In the meanwhile, when the vacuum suction pad  82  is applied to a portion which is not the planar surface region part  36 , the vacuum suction pad  82  has contact with the outer surface of the second sheet  34  as illustrated in  FIG. 3 . At this time, the vacuum suction pad  82  may he applied to a level difference portion in the outer surface of the second sheet  34  and protrude from the planar surface in the parallel direction in some cases. In this case, the outer surface of the second sheet  34  and the vacuum suction pad  82  are hardly attached to each other in an airtight state, and an air leakage (vacuum leakage) at the time of the vacuum suction may occur in some cases. 
     Effect Etc. of Embodiment 1 
     In the wiring member  10 , when the vacuum suction pad  82  is applied to the planar surface region part  36 , the planar surface region part  36  and the vacuum suction pad  82  are firmly attached to each other in an airtight state easily. Accordingly, the air leakage at the time of vacuum suction is suppressed. Accordingly, the wiring member  10  can be vacuum-sucked with small vacuum pressure, and the wiring member  10  is easily held by a vacuum suction. 
     The bottom surface of the depression  38  forms the planar surface region part  36 , thus even when the second sheet  34  is bended, the planar surface region part  36  is provided. 
     The plurality of wire-like transmission members  20  located on the inner side of the planar surface region pan  36  have the identical outer diameter, thus the second sheet  34  is hardly bended. 
     The surface roughness of the planar surface region part  36  Is formed to be smaller than that of the part of the second sheet  34  which is not the planar surface region part  36 . Accordingly, the air leakage hardly occurs when the vacuum suction pad  82  is applied to the planar surface region part  36 . Accordingly, the planar surface region part  36  and the vacuum suction pad  82  are firmly attached to each other in an airtight state easily. 
     The planar surface region part  36  is provided in a position exposed in the wiring member  10  in a folded state. Accordingly, the vacuum suction pad  82  can be applied to the planar surface region part  36  in the state where the wiring member  10  is folded, and the wiring member  10  can be transported in the state of being folded. 
     Embodiment 2 
     A wiring member according to an embodiment  2  is described.  FIG. 4  is a cross-sectional plan view illustrating a wiring member  110  according to the embodiment  2 . In the description of the present embodiment, the same reference numerals are assigned to the similar constituent elements described above, and the description thereof will be omitted. 
     In the wiring member  110 , the sheet  130  includes the first sheet  32  and a second sheet  134 , The depression  38  is not formed in an outer surface of the second sheet  134 . The second sheet  134  has a uniform thickness dimension. In the wiring member  110 , the outer surface of the second sheet  134  is not a planar surface region part. The wiring member  110  further includes a plate-like material  40  provided on the outer surface of the second sheet  134 . An outer surface of the plate-like material  40  forms the planar surface region part  42 . 
     The plate-like material  40  is formed into a plate-like shape. A shape of the plate-like material  40  in a plan view is not particularly limited, however, polygonal shape or a circular shape is also applicable. A first main surface and a second main surface of the plate-like material  40  are planar surfaces. A first main surface of the plate-like material  40  is directed to a side of the second sheet  134 . At least a part of the first main surface of the plate-like material  40  is fixed to the second sheet  134 . The second main surface of the plate-like material  40  is an outer surface forming the planar surface region part  42 . 
     A dimension of the plate-like material  40  along the parallel direction is not particularly limited, however, any size is applicable as long as it can he compatible with the vacuum suction pad  82 . In the example illustrated in  FIG. 4 , the dimension of the plate-like material  40  along the parallel direction is smaller titan that of the second sheet  134  along the parallel direction. The dimension of the plate-like material  40  along the parallel direction may be equal to or larger than that of the second sheet  134  along the parallel direction. In the example illustrated in  FIG. 4 , the dimension of the plate-like material  40  along the parallel direction is larger than a distance between the two wire-like transmission members farthest away from each other along the parallel direction. The dimension of the plate-like material  40  along the parallel direction may be equal to or smaller than a distance between the two wire-like transmission members farthest away from each other along the parallel direction. 
     Both end portions of the plate-like material  40  along the parallel direction do not protrude to an outer side than an outer edge portion of the second sheet  134 . One end portion of the plate-like material  40  along the parallel direction may protrude to the outer side than the outer edge portion of the second sheet  134 , or both aid portions thereof may protrude to the outer side than the outer edge portion of the second sheet  134 . 
     There is a curved surface curved in a thickness direction in an outer surface of the second sheet  134 . The curved surface is a part generated when the first sheet  32  and the second sheet  134  get close to each other from an intermediate portion covering the wire-like transmission member  20  toward an outer edge portion not covering the wire-like transmission member  20  in the fixation of the first sheet  32  and the second sheet  134 . The plate-like material  40  has a part covering the curved surface of the second sheet  134 . A part of the plate-like material  40  covering the curved surface of the first main surface is separated from the curved surface. Only a pan of the first main surface of the plate-like material  40  has contact with the second sheet  134 . 
     The plate-like material  40  and the second sheet  134  are fixed to each other in a part having contact with each other. A fixing state of the plate-like material  40  and the second sheet  134  is not particularly limited, however, bonding or welding may also be applied. 
     It is sufficient that a part of the plate-like material  40  which does not have contact with the second sheet  134  also has rigidity with a degree of being able to keep a flat plate-dike shape. For example, the plate-like material  40  may be formed to be harder than the second sheet  134 . For example, when the plate-like material  40  and the second sheet  134  are formed of the same material, the thickness of the plate-like material  40  is larger than that of the second sheet  134 , thus the plate-like material  40  is formed to be harder than the second sheet  134 . A material constituting the plate-like material  40  roe he different from that constituting the second sheet  134 . In this case, when the material constituting the plate-like material  40  is harder than that constituting the second sheet  134 , the plate-like material  40  may be formed to he harder than the second sheet  134  even when the thickness of the plate-like material  40  is equal to or smaller than that of the second sheet  134 . The case where the material is different includes a case where a type of resin as a base is different and a case where a type and a compound ratio of an additive is different even when the type of the resin as the base is the same, for example. That is to say, When the type and the compound ratio of the additive are different even in the case where the resin as the base is the same, the plate-like materials  40  having the same thickness but having hardness different from each other are formed. 
     In the example illustrated in  FIG. 4 , the intermediate portion of the plate-like material  40  is fixed to the second sheet  134  along the parallel direction. Both end portions of the plate-like material  40  is not fixed to the second sheet  134  along the parallel direction, and does not have contact therewith. One end portion of the plate-like material  40  may be fixed to the second sheet  134  along the parallel direction. In this case, one end portion of the plate-like material  40  may be located in a position overlapping with the wire-like transmission member  20  along the parallel direction. In this case, the other end portion of the plate-like material  40  may not be fixed to the second sheet  134  along the parallel direction. 
     A depression may be formed in a portion of the outer surface of the second sheet  134  where the plate-like material  40  is provided. A shape of the depression is not particularly limited as long as the depression can house the plate like material  40 , but may be also formed to have a groove-like shape in the manner similar to the depression  38  in the embodiment 1, for example. The plate-like material  40  is housed in the depression, thus the plate-like material  40  is positioned with respect to the second sheet  134 . The plate-like material  40  and a bottom portion of the depression have contact with each other, thus a contact area between the plate-like material  40  and the second sheet  134  increases along the parallel direction compared with a case where the plate-like material  40  and the outer surface of the second sheet  134  other than the depression have contact with each other. Even in the case where the plate-like material  40  is provided, an amount of increase in the thickness dimension of the wiring member  110  decreases in the portion where the plate-like material  40 . 
     Operation Etc. 
     When the vacuum suction pad  82  is applied to the planar surface region part  42 , the vacuum suction pad  82  has contact with the planar surface region part  42  as illustrated in  FIG. 4 . At this time, suppressed is a protrusion of the vacuum suction pad  82  from the planar surface region part  42  also in the parallel direction. Accordingly, the planar surface region part  42  and the vacuum suction pad  82  are firmly attached to each other in an airtight state easily, and an air leakage (vacuum leakage) at the time of the vacuum suction is suppressed. 
     Effect Etc. of Embodiment 2 
     Also according to the wiring member  110 , when the vacuum suction pad  82  is applied to the planar surface region part  42 , the planar surface region part  42  and the vacuum suction pad  82  are firmly attached to each other in an airtight state easily. Accordingly, the air leakage is suppressed at the time of the vacuum suction, thus the wiring member  110  is easily held by the vacuum suction. 
     According to the wiring member  110 , the outer surface of the plate-like material  40  forms the planar surface region part  42 , thus the planar surface region part  42  is easily kept in a planar state. The plate-like material  40  is formed to he harder than the second sheet  134 , thus even when the second sheet  134  is bended, the planar surface region part  42  is provided. 
     Modification Example 
       FIG. 5  is a cross-sectional view illustrating a modification example of the wiring member  110 . 
     In a member  210  according to the modification example, the plurality of wire-like transmission members  20  include a first wire-like transmission member  20 A and a second wire-like transmission member  20 B. The first wire-like transmission member  20 A is thicker than the second wire-like transmission member  20 B. The wiring member  210  includes the plurality of wire-like transmission members  20  each having an outer diameter different from each other. 
     Two first wire-like transmission members  20 A are included. The number of first wire-like transmission members  20 A may he one, or three or more first wire-like transmission member  20 A are also applicable. Two second wire-like transmission members  20 B are included. The number of second wire-like transmission members  20 B may be one, or three or more second wire-like transmission member  20 B are also applicable. 
     The first wire-like transmission member  20 A is located on an inner side and the second wire-like transmission member  20 B is located on an outer side along the parallel direction. It is also applicable that the second wire-like transmission member  20 B is located on an inner side and the first wire-like transmission member  20 A is located on an outer side along the parallel direction. The first wire-like transmission member  20 A and the second wire-like transmission member  20 B may be alternately located along the parallel direction. 
     There is a curved surface curved in a thickness direction in an outer surface of the second sheet  134 . The curved surface includes a portion (referred to as a first curved surface hereinafter) generated when the first sheet  32  and the second sheet  134  get close to each other from an intermediate portion covering the wire-like transmission member  20  toward an edge portion not covering the wire-like transmission member  20  in the fixation of the first sheet  32  and the second sheet  134 . The curved surface includes a portion (referred to as a second curved surface hereinafter) generated in accordance with a difference of an outer diameter between the first wire-like transmission member  20 A and the second wire-like transmission member  20 B. The first curved surface is located in a portion not covering the wire-like transmission member  20 , and the second curved surface is located in a portion covering the wire-like transmission member  20 . 
     In the example illustrated in  FIG. 5 , the first curved surface and the second curved surface are continuously located without a planar surface. There may also be a case where a planar surface is located between the first curved surface and the second curved surface. For example, when the plurality of second wire-like transmission members  20 B are arranged in one side portion of the sheet  30 , there may be a case where a planar surface is located between the first curved surface and the second curved surface. 
     A position in the second sheet  134  farthest away from the first sheet  32  along thickness direction is defined as a farthest part. In the example illustrated in  FIG. 5 , a portion of the second sheet  134  having contact with the first wire-like transmission member  20 A is the farthest part. In the example illustrated in  FIG. 5 , the first curved surface and the second curved surface are located on the same side with respect to the farthest part in one side portion. That is to say, the second sheet  134  is a fixing portion fixed to the first sheet  32  via the second curved surface and the first curved surface from the farthest part. The first curved surface and the second curved surface may be located on opposite sides of the farthest part. For example, when the second wire-like transmission member  208  is located on the inner side and the first wire-like transmission member  20 A is located on the outer side along the parallel direction in one side portion of the sheet  30 , the first curved surface and the second curved surface may be located on opposite sides of the farthest part. It can also be considered that the first curved surface is located on the outer side of the farthest part and the second curved surface is located on the inner side of the farthest part. 
     The plate-like material  40  has a portion covering the curved surface of the second sheet  134 . A part of the plate-like material  40  covering the curved surface of the first main surface is separated from the curved surface. Only a part of the first main surface of the plate-like material  40  has contact with the second sheet  134 . 
     Also in the wiring member  10  according to the embodiment 1, the plurality of wire-like transmission members  20  may include the first wire-like transmission member  20 A and the second wire-like transmission member NB. 
     Moreover, in the example described above, the wire-like transmission member  20  is fixed to the first sheet  32 , and the wire-like transmission member  20  is not fixed to the second sheet  34 , however, this configuration is not necessary. It is also applicable that the wire-like transmission member  20  is fixed to the second sheet  34  and the wire-like transmission member  20  is not fixed to the first sheet  32 . It is also applicable that the roles of the first sheet  32  and the second sheet  34  are reversed and the planar surface region part  36  is provided on the outer side of the second sheet  34 . 
     The configurations described in the embodiments and notification examples thereof can be appropriately combined as long as they are not contradictory. 
     EXPLANATION OF REFERENCE SIGNS 
     
         
           10 ,  110 ,  210  wiring member 
           20  wire-like transmission member 
           20 A first wire-like transmission member 
           20 B second wire-like transmission member 
           22  core wire 
           24  covering 
           30 ,  130  sheet 
           32  first sheet 
           14 ,  134  second sheet 
           38  depression 
           40  plate-like material 
           70  table 
           80  robot arm 
           82  vacuum suction pad 
         A region 
         C connector