Laminated sheet

Abstract

To provide a laminated sheet, in which a second sheet member is superimposed on a first sheet member to which an electric wire is fixed, in order for them to be firmly fixed.SOLUTION: The laminated sheet 30 includes a first sheet member 32, and a second sheet member 36 fixed to the other main surface side of the first sheet member 32, and in one of the first sheet member 32 and the second sheet member 36, a space 38 in which the other can be melted and filled in is formed, and the first sheet member 32 and the second sheet member 36 are superimposed in a state in which the other of the first sheet member 32 and the second sheet member is melted and filled in the one space 38 and solidified.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a wiring member including a linear transmission member and a sheet member. [Background technology]

[0002] Patent Document 1 discloses a configuration in which covered electric wires are arranged in parallel on a soft resin sheet, and discloses a method for bonding the covered electric wires to the soft resin sheet, such as a heat and pressure welding method. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 58-192408 Summary of the Invention [Problem to be solved by the invention]

[0004] It is preferable to select a material suitable for bonding with the insulated electric wire as the soft resin sheet. For example, it is assumed that the insulated electric wire and the soft resin sheet are bonded by a heat and pressure welding means. In this case, it is preferable to select a soft resin sheet that can easily weld the insulated electric wire, for example, a resin that is the same as the resin material of the insulated electric wire.

[0005] However, when a soft resin sheet suitable for bonding to a coated electric wire is selected, it may be inferior in other properties. In this case, it is conceivable to overlap another sheet on the soft resin sheet to compensate for the other properties.

[0006] However, depending on the combination of materials between the soft resin sheet and the other sheet, there may be cases where the two sheets cannot be firmly secured together when overlapped.

[0007] Therefore, an object of the present invention is to make it possible to securely fix an electric wire by overlapping a second sheet member on a first sheet member to which the electric wire is fixed. [Means for solving the problem]

[0008] In order to solve the above problem, the laminated sheet comprises a first sheet member and a second sheet member fixed to the other main surface side of the first sheet member, and a space is formed in one of the first sheet member and the second sheet member into which the other can be melted and filled, and the first sheet member and the second sheet member are superimposed in a solidified state in which the other of the first sheet member and the second sheet member has melted and filled the space in the one of the first sheet member and the second sheet member. Effect of the Invention

[0009] Since the first sheet member and the second sheet member are overlapped in a state in which one of them has melted and filled the space between the other and solidified, the first sheet member and the second sheet member can be firmly overlapped and fixed. Furthermore, since the first sheet member and the second sheet member can be overlapped regardless of the quality of adhesiveness due to chemical interaction, for example, the first sheet member can be made of a material suitable for fixing to another member, and the second sheet member can be configured to ensure another function. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a schematic perspective view showing a wiring member according to the embodiment. [Diagram 2] FIG. 2 is a partial cross-sectional view taken along line II-II in FIG. [Diagram 3] 1 is an explanatory diagram showing a process for manufacturing a wiring member. [Figure 4] FIG. 11 is a schematic perspective view showing a wiring member according to a first modified example. [Diagram 5] FIG. 11 is a schematic perspective view showing a wiring member according to a second modified example. [Figure 6] FIG. 4 is a partial cross-sectional view showing a wiring member according to a modification of the above embodiment; [Figure 7] 11 is an explanatory diagram showing an example in which a material that changes color due to heat is provided on a wiring member; FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The wiring member and the laminate sheet according to the embodiment will be described below.

[0012] FIG. 1 is a schematic perspective view showing a wiring member 10, and FIG. 2 is a partial cross-sectional view taken along line II-II in FIG.

[0013] The wiring member 10 includes a linear transmission member 20 and a laminated sheet 30. The laminated sheet 30 is configured such that a first sheet member 32 and a second sheet member 36 are laminated together.

[0014] The linear transmission member 20 may be any linear member that transmits electricity, light, or the like. For example, the linear transmission member 20 may be a general electric wire having a core wire and a coating around the core wire, or may be a shielded wire, an enameled wire, a nichrome wire, an optical fiber, or the like. The linear transmission member that transmits electricity may be any of various signal lines and various power lines. The linear transmission member that transmits electricity may be used as an antenna, a coil, or the like that sends or receives a signal or power to or from space.

[0015] Here, the linear transmission member 20 will be described as a general electric wire 20 (hereinafter, simply referred to as electric wire 20). The electric wire 20 has a core wire 24 as a transmission line body, and an insulating coating 26 as a coating 26 that covers the core wire 24. Each description of the electric wire 20 is applicable to each example of the linear transmission member 20, except for inapplicable configurations.

[0016] The core wire 24 is composed of one or more strands. The strands are made of a conductor such as copper, copper alloy, aluminum, or aluminum alloy. When the core wire 24 is composed of multiple strands, the multiple strands may be twisted together. The insulating coating 26 is formed by extrusion molding a resin material such as PVC (polyvinyl chloride) or PE (polyethylene) around the core wire 24. Here, the electric wire 20 is a so-called round electric wire having a circular cross section.

[0017] Here, a plurality of electric wires 20 (three in FIG. 1 ) are fixed in parallel to the laminated sheet 30. The number of electric wires 20 may be one or more. The electric wire 20 may be fixed in a bent state on the laminated sheet 30. The plurality of electric wires 20 may be fixed to the laminated sheet 30 so as to branch off midway.

[0018] The laminated sheet 30 is a sheet-like member having the electric wire 20 fixed on a main surface 31. By fixing the electric wire 20 on the main surface 31 of the laminated sheet 30, the electric wire 20 is held along a predetermined path on the main surface 31. The laminated sheet 30 may have flexibility that allows it to be easily bent, or may be a member having a degree of rigidity that allows it to maintain a certain shape.

[0019] The laminated sheet 30 is configured by laminating a first sheet member 32 and a second sheet member .

[0020] The first sheet member 32 is a sheet-like member. Here, the first sheet member 32 is formed in an elongated rectangular shape. The electric wires 20 are fixed to one main surface 33 of the first sheet member 32.

[0021] The second sheet member 36 is a sheet-like member. Here, the first sheet member 32 is formed in an elongated rectangular shape. The second sheet member 36 is fixed to the other main surface 34 of the first sheet member 32 in an overlapping state.

[0022] Here, the first sheet member 32 and the second sheet member 36 have the same shape, and the second sheet member 36 is fixed to the entire other main surface 34 of the first sheet member 32. The first sheet member may be larger than the second sheet member, and the second sheet member may be fixed to a portion of the other main surface of the first sheet member. Conversely, the first sheet member may be smaller than the second sheet member, and the first sheet member may be fixed to a portion of one main surface of the second sheet member.

[0023] Since the electric wires 20 are fixed to the first sheet member 32, the first sheet member 32 is a member more suitable for fixing the electric wires 20 than the second sheet member .

[0024] If a material suitable for fixing the electric wires 20 is used as the first sheet member 32, some functions may be insufficient or insufficient. Therefore, the second sheet member 36 reinforces or adds some functions of the first sheet member 32.

[0025] The manner in which the electric wires 20 are fixed to the first sheet member 32 may be fixing at a contact portion, fixing at a non-contact portion, or a combination of both.

[0026] Here, the term "fixed at the contacting portion" refers to a state in which the linear transmission member (electric wire 20) and the first sheet member 32 are fixed by adhering to each other at the contacting portion. The term "fixed at the non-contacting portion" refers to a fixing mode that is not fixed at the contacting portion, such as a fixing member that presses the linear transmission member (electric wire 20) toward the first sheet member 32, thereby maintaining the linear transmission member (electric wire 20) and the first sheet member 32 in a fixed state.

[0027] The manner of fixing the contact parts may be indirect fixing of the contact parts, direct fixing of the contact parts, or both may be used in different regions. Here, indirect fixing of the contact parts refers to the linear transmission member (electric wire 20) and the first sheet member 32 being indirectly attached and fixed via an intervening member such as an adhesive, a pressure sensitive adhesive, or a double-sided adhesive tape provided between them. Direct fixing of the contact parts refers to the linear transmission member (electric wire 20) and the first sheet member 32 being directly attached and fixed without using a separately provided adhesive or the like. In direct fixing of the contact parts, for example, it is considered that the linear transmission member (electric wire 20) and the first sheet member 32 are attached and fixed by melting a resin contained in at least one of them.

[0028] When the state of directly fixing the contact parts is formed, the resin may be melted by, for example, heat or a solvent. That is, the state of directly fixing the contact parts may be a state of directly fixing the contact parts by heat or a state of directly fixing the contact parts by a solvent. Preferably, the state of directly fixing the contact parts by heat is used.

[0029] At this time, the means for forming the state of direct fixation of the contact parts is not particularly limited, and various means including known means such as welding, fusion, and welding can be used. For example, when forming the state of direct fixation of the contact parts by heat through welding, various welding means such as ultrasonic welding, heat and pressure welding, hot air welding, and high frequency welding can be adopted. Furthermore, when the state of direct fixation of the contact parts is formed by these means, the linear transmission member (electric wire 20) and the first sheet member 32 are in a state of direct fixation of the contact parts by that means. Specifically, for example, when the state of direct fixation of the contact parts is formed by ultrasonic welding, the linear transmission member (electric wire 20) and the first sheet member 32 are in a state of direct fixation of the contact parts by ultrasonic welding. The part where the state of direct fixation of the contact parts by heat is formed by welding (the fixed part between the linear transmission member (electric wire 20) and the first sheet member 32) may be called a welded part, the fixed part by ultrasonic welding may be called an ultrasonic welded part, and the fixed part by heat and pressure welding may be called a heat and pressure welded part, etc.

[0030] In the case of direct fixation of the contact area, only the resin contained in the coating of the linear transmission member (electric wire 20) may be melted, or only the resin contained in the first sheet member 32 may be melted. In these cases, the melted resin may adhere to the outer surface of the other and become solidified, forming a relatively clear interface. In addition, in the case of direct fixation of the contact area, both the resin contained in the coating of the linear transmission member (electric wire 20) and the resin contained in the first sheet member 32 may be melted. In this case, the two resins may mix together and not form a clear interface. In particular, when the coating of the linear transmission member (electric wire 20) and the first sheet member 32 contain resins that are easily compatible with each other, such as the same resin material, the two resins may mix together and not form a clear interface.

[0031] As a mode of fixing the non-contact parts, for example, sewing thread, another sheet material, adhesive tape, etc. may be used to press the linear transmission member (electric wire 20) toward the first sheet member 32, thereby maintaining the linear transmission member (electric wire) and the sheet material in a fixed state.

[0032] Assuming that the above-mentioned fixing modes are the premise, the significance of the first sheet member 32 being a member more suitable for fixing the electric wire 20 than the second sheet member 36 can be considered, for example, as follows.

[0033] As an example of indirect fixation of contact parts, a mode in which the linear transmission member (electric wire 20) and the first sheet member 32 are adhesively fixed to each other via an adhesive member such as a pressure sensitive adhesive or double-sided adhesive tape provided therebetween is considered. In this case, the first sheet member 32 is a member more suitable for fixing the electric wire 20 than the second sheet member 36, and therefore it may be considered that when an adhesive member is adhered to the first sheet member 32 and the second sheet member 36, the adhesive member has a stronger adhesive force to the first sheet member 32 than to the second sheet member 36. In general, the adhesive member has a weak adhesive force to members having a rough surface or a surface on which fine structures are present in a separable manner, such as a nonwoven fabric.

[0034] As an example of indirect fixation of contact parts, a mode in which the linear transmission member (electric wire 20) and the first sheet member 32 are fixed by an adhesive provided between them is considered. In this case, it may be considered that the first sheet member 32 has a stronger adhesive strength than the second sheet member 36 to an adhesive suitable for bonding the linear transmission member (electric wire 20). In general, an adhesive exhibits good adhesion to members with good compatibility (affinity), and in particular exhibits good adhesion to resins of the same type, so it is preferable that the coating of the linear transmission member (electric wire 20) and the first sheet member 32 are made of the same type of resin.

[0035] As an example of direct fixation of the contact parts, a case where the linear transmission member (electric wire 20) and the first sheet member 32 are fixed by melting and solidifying the resin surface of at least one of them is considered. As described above, the resin surface of at least one of the linear transmission member (electric wire 20) and the first sheet member 32 may be melted by heat or by a solvent. In this case, it may be considered that the adhesive strength when at least one of the resin surface (coating) of the linear transmission member (electric wire 20) and the resin surface of the first sheet member 32 melts and solidifies to adhere to each other is greater than the adhesive strength when at least one of the resin surface (coating) of the linear transmission member (electric wire 20) and the resin surface of the second sheet member 36 melts and solidifies to adhere to each other. In general, resin materials with good compatibility (affinity) show good adhesive strength when at least one of them melts, and particularly, resin materials of the same type show good adhesive strength. For this reason, it is preferable that the surface portion (coating) of the linear transmission member (electric wire 20) and the first sheet member 32 are made of the same type of resin. In other words, it is preferable that the compatibility between the resin of the surface portion of the linear transmission member and the resin of the first sheet member 32 is better than the compatibility between the resin of the surface portion of the linear transmission member and the resin of the second sheet member 36.

[0036] As an example of fixing the non-contacting portions, a sewing thread may be used to sew the linear transmission member (electric wire 20) to the first sheet member 32 while surrounding the linear transmission member (electric wire 20). In this case, the first sheet member 32 is less likely to tear with the sewing thread than the second sheet member 36, and therefore the linear transmission member (electric wire 20) sewn to the first sheet member 32 with the sewing thread may be considered to be fixed more firmly than the linear transmission member sewn to the second sheet member 36 by the same configuration.

[0037] As an example of non-contact portion fixing, a sheet material, adhesive tape, or the like is fixed to the first sheet member 32 while covering the linear transmission member (electric wire 20), thereby fixing the linear transmission member (electric wire 20) to the first sheet member 32. In this case, if another sheet material, adhesive tape, or the like is fixed to the first sheet member 32 via an adhesive material, it may be considered that the adhesive force of the another sheet material, adhesive tape, or the like to the first sheet member 32 is greater than the adhesive force to the second sheet member 36.

[0038] The above-mentioned ideas regarding the fixing manner between the coating of the linear transmission member (electric wire 20) and the first sheet member 32 can be applied to each of the following modes: the mode in which the pressing sheet material is fixed to the first sheet member 32 with an adhesive, the mode in which the pressing sheet material is fixed to the first sheet member 32 with sewing thread, and the mode in which the pressing sheet material is fixed by melting the resin surface of at least one of the sheet material or the first sheet member 32.

[0039] In summary, the first sheet member 32 is more suitable for fixing the linear transmission member (electric wire 20) than the second sheet member 36 in the following sense: When the linear transmission member (electric wire 20) is fixed to the first sheet member 32 and the second sheet member 36 in the same configuration, the fixing force of the linear transmission member (electric wire 20) to the first sheet member 32 is greater than the fixing force of the linear transmission member (electric wire 20) to the second sheet member 36.

[0040] Here, we will explain an example in which the linear transmission member (electric wire 20) is directly fixed to the first sheet member 32 at the contact site, more specifically, the resin surface of at least one of the linear transmission member (electric wire 20) and the first sheet member 32 melts and solidifies, thereby fixing the linear transmission member (electric wire 20) to the first sheet member 32.

[0041] In this case, as described above, the adhesive strength when at least one of the resin surface (coating) of the linear transmission member (electric wire 20) and the resin surface of the first sheet member 32 melts and solidifies to stick together may be considered to be greater than the adhesive strength when at least one of the resin surface (coating) of the linear transmission member (electric wire 20) and the resin surface of the second sheet member 36 melts and solidifies to stick together.

[0042] As long as the above conditions are satisfied, the material constituting the first sheet member 32 is not particularly limited, and for example, the first sheet member 32 is formed of a material containing resin such as PVC (polyvinyl chloride), PET (polyethylene terephthalate), PP (polypropylene), etc. Which material is suitable can be selected in relation to the material of the resin surface (coating) of the linear transmission member (electric wire 20).

[0043] As described above, it is preferable that the resin surface (coating) of the linear transmission member (electric wire 20) and the first sheet member 32 are made of the same type of resin. For example, when the coating 26 of the electric wire 20 is made of a resin mainly composed of PVC (polyvinyl chloride), it is preferable that the first sheet member 32 is made of a resin mainly composed of PVC (polyvinyl chloride).

[0044] Here, the first sheet member 32 is a sheet-like member whose inside is uniformly filled.

[0045] As described above, if the material of the first sheet member 32 is selected from the viewpoint of suitability for fixing the electric wires 20, some functions that are desirable as a wiring member may be insufficient or may lack some functions.

[0046] For example, consider the case where the first sheet member 32 is formed from a resin mainly composed of PVC (polyvinyl chloride) in accordance with the material of the coating 26 of the electric wire 20, as described above. In this case, since PVC (polyvinyl chloride) is a resin that easily stretches, it cannot fully withstand the tensile force applied to the wiring member 10, and the tensile force may act largely on the electric wire 20 itself.

[0047] Therefore, the second sheet member 36 is overlapped and fixed to the first sheet member 32. The second sheet member 36 is selected for the purpose of supplementing or adding some function to the first sheet member 32, so it is possible that a material that is not suitable for fixing the electric wire 20 is selected. Since a material that is suitable for fixing to the electric wire 20 is selected as the first sheet member 32, it is possible that the second sheet member 36 is not suitable for fixing to the first sheet member 32 in an overlapping state.

[0048] For example, as described above, the first sheet member 32 is selected to be made of a resin mainly composed of PVC (polyvinyl chloride) in accordance with the material of the coating 26 of the electric wire 20. In this case, since the first sheet member 32 is easily stretched, it is preferable to select a material that is less likely to stretch as the second sheet member 36. For example, the second sheet member 36 is selected to be made of a resin that is less likely to stretch, such as PP (polypropylene), PET (polyethylene terephthalate), or PE (polypropylene).

[0049] Then, it is considered to fix the first sheet member 32 and the second sheet member 36 by melting the resin surface of at least one of them. In this case, the first sheet member 32 formed from a resin mainly composed of PVC (polyvinyl chloride) does not easily adhere to the second sheet member 36 formed from a resin such as PP (polypropylene), PET (polyethylene terephthalate), PE (polypropylene), etc., and the two may easily peel off from each other.

[0050] Therefore, as the second sheet member 36, a first sheet member 32 is used in which a fillable space has been formed by melting, and the first sheet member 32 is melted, filled into the space of the second sheet member 36, and solidified, and the first sheet member 32 and the second sheet member 36 are placed one on top of the other.

[0051] Here, a nonwoven sheet member is used as the second sheet member 36. The nonwoven sheet member is a member formed in a sheet shape by intertwining a plurality of fibers 37 without weaving. If a resin less stretchable than the resin constituting the first sheet member 32, such as PP (polypropylene), PET (polyethylene terephthalate), PA (polyamide), or PE (polypropylene), is used as the fibers 37, the nonwoven sheet member itself becomes less stretchable. Therefore, by overlapping and bonding the second sheet member 36 formed of such a nonwoven sheet member to the first sheet member 32, the laminated sheet 30 itself becomes less stretchable. The nonwoven sheet member may contain an adhesive resin called a binder. The adhesive resin has a melting point lower than the melting point of the fibers 37 and serves to bond the fibers 37 together. The adhesive resin may cover all or a part of the plurality of fibers, or may be mixed in a fibrous or granular form separately from the fibers.

[0052] In the second sheet member 36 formed by the nonwoven sheet member, spaces 38 are formed between a plurality of fibers 37. These spaces 38 are spaces 38 into which the first sheet member 32 can melt and fill.

[0053] It is preferable that the melting point of the second sheet member 36 formed by a nonwoven sheet member is higher than the melting point of the first sheet member 32. That is, in order to melt and fill the spaces 38 of the second sheet member 36 formed by a nonwoven sheet member with the first sheet member 32, it is preferable that the spaces 38 remain uncollapsed when the first sheet member 32 is in a melted state. To achieve this, it is preferable that the melting point of the fibers 37 of the second sheet member 36 is higher than the melting point of the first sheet member 32.

[0054] For example, the first sheet member 32 may be made of a resin mainly composed of PVC (polyvinyl chloride) with a melting point of 85 to 210 degrees, and the second sheet member 36 may be made of fibers made of PP (polypropylene) with a melting point of approximately 250 degrees.

[0055] It is not essential that the melting point of the fibers 37 is higher than that of the first sheet member 32. The melting point of the adhesive resin does not have to be higher than that of the first sheet member 32. The melting point of the second sheet member 36 is the temperature of the main portion (fibers 37) that forms the space 38.

[0056] The first sheet member 32 and the second sheet member 36 can be overlapped and fixed together, for example, as shown in FIG.

[0057] First, the first sheet member 32 and the second sheet member 36 are prepared. Then, the first sheet member 32 and the second sheet member 36 are sandwiched between the first press member 50 and the second press member 52 in a state where they are overlapped. A heater 54 is provided on at least one of the first press member 50 and the second press member 52. It is preferable that the heater 54 be provided at least on the side of the first press member 50 that presses the first sheet member 32 so that the heater 54 can mainly heat the first sheet member 32.

[0058] When the first sheet member 32 and the second sheet member 36 are pressed and heated in a superposed state by the first press member 50 and the second press member 52, at least a portion of the first sheet member 32 melts. Then, the melted portion of the first sheet member 32 flows into the spaces 38 of the fibers 37 of the second sheet member 36, filling the spaces 38.

[0059] Thereafter, when the heating is stopped, the portion of the first sheet member 32 that melted and filled the space 38 solidifies, and the first sheet member 32 and the second sheet member 36 are fixed in an overlapping state.

[0060] When the first sheet member 32 is heated, the entire first sheet member 32 may melt, or only a portion of the side closer to the second sheet member 36 may melt. The melted portion of the first sheet member 32 may fill only the space 38 of the second sheet member 36 on the first sheet member 32 side, or may fill the entire space 38 in the thickness direction of the second sheet member 36. In FIG. 2, the first sheet member 32 melts, fills the space 38 of the second sheet member 36 on the first sheet member 32 side, and solidifies, and at least a portion of the space 38 remains in the portion of the second sheet member 36 away from the first sheet member 32.

[0061] The first sheet member 32 and the second sheet member 36 may be fixed to each other over their entire contact surfaces, or may be fixed to each other at partial fixed points or regions.

[0062] The electric wire 20 may be fixed to the first sheet member 32 before the first sheet member 32 and the second sheet member 36 are fixed to each other, or may be fixed to the first sheet member 32 and the second sheet member 36 after the first sheet member 32 and the second sheet member 36 are fixed to each other. When the first sheet member 32 and the second sheet member 36 are fixed to each other after the electric wire 20 is fixed to the first sheet member 32, the first sheet member 32 and the second sheet member 36 may be pressurized and heated while avoiding the fixing location of the electric wire 20.

[0063] The material, properties, etc. of the second sheet member 36 vary depending on the function that is desired to be supplemented or added to the first sheet member 32. For example, when the purpose is to supplement or add soundproofing, cushioning, etc., the second sheet member 36 may be a nonwoven sheet member made of easily stretchable fibers. Also, when the purpose is to supplement or add rigidity, etc., the second sheet member 36 may be a sheet having higher rigidity than the first sheet member 32.

[0064] According to the wiring member 10 and laminated sheet 30 configured in this manner, the first sheet member 32 is a member more suitable for fixing the electric wire 20 than the second sheet member 36, and therefore the electric wire 20 can be firmly fixed to the first sheet member 32.

[0065] In addition, since the first sheet member 32 and the second sheet member 36 are overlapped in a state in which the first sheet member 32 melts, fills the spaces 38 of the second sheet member 36, and solidifies, the first sheet member 32 is fixed to the second sheet member 36 by an anchor effect, increasing the peel strength, and the two can be firmly overlapped and fixed. In other words, since the first sheet member 32 and the second sheet member 36 are fixed mainly by physical action, the second sheet member 36 can be made of any material without considering the chemical adhesive strength to the electric wires 20 and the first sheet member 32, and any desired function can be easily added or supplemented.

[0066] Furthermore, if the melting point of the first sheet member 32 is higher than that of the second sheet member 36, when the first sheet member 32 and the second sheet member 36 are pressed and heated in a superposed state, the first sheet member 32 is likely to melt while spaces 38 remain in the second sheet member 36. Therefore, the first sheet member 32 can be melted and filled into the spaces 38 of the second sheet member 36, and can be easily fixed in a solidified state. This allows the first sheet member 32 and the second sheet member 36 to be more reliably and firmly superposed and fixed.

[0067] In addition, since the first sheet member 32 is a sheet-like member whose inside is filled uniformly, the linear electric wire 20 can be easily fixed to the first sheet member 32 in a stable manner. In addition, since the second sheet member 36 is a nonwoven sheet member, many spaces 38 are formed between the entangled fibers 37, and the melted first sheet member 32 can easily fill the many spaces 38. In addition, since the fibers 37 are in a complex state inside the melted first sheet member 32, it is difficult for the melted first sheet member 32 to escape from the spaces 38 between the fibers 37. Therefore, the first sheet member 32 and the second sheet member 36 can be firmly overlapped and fixed.

[0068] In addition, the first sheet member 32 melts, fills the space on the first sheet member 32 side of the second sheet member 36, which is a nonwoven sheet member, and then solidifies, and spaces 38 remain in the portion of the second sheet member 36 away from the first sheet member 32, so that the protective and soundproofing properties of the nonwoven sheet member can be obtained.

[0069] Furthermore, if the resin material of the first sheet member 32 and the resin material (the material of the coating 26) on the surface of the linear transmission member (electric wire 20) are formed from the same type of resin, it is easy to firmly fix the surface (coating 26) of the linear transmission member (electric wire 20) to the first sheet member 32.

[0070] For example, if the surface portion of the linear transmission member (the covering 26 of the electric wire 20) and the first sheet member 32 are made of a resin mainly composed of polyvinyl chloride, the two can be firmly fixed together. If the second sheet member 36 is made of a resin less stretchable than the first sheet member 32 (for example, less stretchable PP (polypropylene), PET (polyethylene terephthalate), PE (polypropylene), etc.), the laminated sheet 30 as a whole can be made less stretchable. When a tensile force is applied to the wiring member 10, the laminated sheet 30 can withstand this force, and the tensile force is less likely to act on the electric wire 20.

[0071] {Variation} Based on the above embodiment, various modifications will be described.

[0072] In the above embodiment, an example was described in which the first sheet member 32 was a sheet-like member whose interior was uniformly filled, and the second sheet member 36 was a nonwoven sheet member.

[0073] Conversely, as in the wiring member 110 according to the first modified example shown in Fig. 4, the first sheet member 132 to which the electric wire 20 is fixed may be a nonwoven sheet member, and the second sheet member 136 may be a sheet-like member with a uniformly filled interior. Even in this case, as long as the first sheet member 132 is suitable for fixing the electric wire 20, the electric wire 20 can be firmly fixed to the first sheet member 132, and the first sheet member 132 and the second sheet member 136 can be firmly overlapped and fixed.

[0074] For example, the covering 26 of the electric wire 20 and the first sheet member 132, which is a nonwoven sheet member, may be made of the same resin material such as polyvinyl chloride (PVC), making the two a suitable combination for fastening. Also, for example, the second sheet member 136 may be made of PP (polypropylene), PET (polyethylene terephthalate), PE (polypropylene), or the like, which is less likely to stretch, to add resistance to stretching.

[0075] In other words, the first sheet member to which the electric wires are fixed may be a member having gaps, and the second sheet member may be melted, filled into the gaps, and then solidified.

[0076] In addition, in the above embodiment, an example was described in which the second sheet member 36 having the space 38 was a nonwoven sheet member, but the second sheet member may be any member having spaces that the first sheet member can melt, fill, and solidify.

[0077] For example, in a wiring member 210 according to a second modified example shown in FIG. 5, a mesh-like member is used as the second sheet member 236. FIG. 5 shows a state before the second sheet member 236 is fixed to the first sheet member 32. The mesh-like second sheet member 236 has spaces 238 between the linear members combined lengthwise and widthwise. In other words, the mesh is the space 238. The second sheet member 236, like the above embodiment, adds or complements a function to the first sheet member 32. For example, the second sheet member 236 may be formed of PP (polypropylene), PET (polyethylene terephthalate), PE (polypropylene), metal, or the like, which are difficult to stretch.

[0078] Then, similarly to the above embodiment, when the first sheet member 32 and the second sheet member 236 are overlapped and pressurized and heated, the first sheet member 32 melts and fills the spaces 238 (mesh) of the second sheet member 236 and solidifies, as shown in Fig. 6. Therefore, the first sheet member 32 and the second sheet member 236 can be overlapped and fixed firmly while the electric wire 20 can be fixed firmly to the first sheet member 32.

[0079] The second sheet member may be any sheet in which spaces are formed, and may be a mesh as described above, or a woven fabric in which threads are combined lengthwise and widthwise, or a woven fabric made of woven threads. Since spaces are formed between the combined or woven threads in a woven fabric or mesh fabric, the first sheet member can be melted and filled into the spaces and solidified. The second sheet member may also be a sheet in which a hole penetrating from the front to the back, or a bottomed depression is formed, and the internal space of the hole or the bottomed depression is made into a space that the first sheet member melts to fill and solidify.

[0080] In addition, when melting and fixing the electric wire 20 and the first sheet member 32 by heat, it is preferable to be able to check whether heat has been applied firmly to the electric wire 20 and the first sheet member 32 and whether they are firmly fixed together.

[0081] 7, a material that changes color due to heat may be provided in at least one of the first sheet member 32, which is a sheet to which the electric wires 20 are fixed, and the coating 26 (resin forming the surface of the linear transmission member) of the electric wires 20. The material that changes color due to heat may be mixed into the material forming the first sheet member 32 or the coating 26, or may be attached to the surface thereof.

[0082] It is preferable that the material that changes color due to heat changes color at a predetermined temperature that is equal to or higher than the temperature to which the contact portion between the electric wire 20 and the first sheet member 32 should be heated when the electric wire 20 and the first sheet member 32 are fixed by heat (for example, the lower of the melting point of the electric wire 20 and the melting point of the first sheet member 32).

[0083] The material that changes color due to heat may change color irreversibly or reversibly. In order to inspect whether heat has been applied reliably to the electric wire 20 and the first sheet member 32 even after a certain amount of time has passed after processing, the material that changes color due to heat is preferably one that changes color irreversibly. If the material that changes color due to heat changes color reversibly, it is advisable to inspect the material visually or with an image processing inspection device that has a function of capturing an image with a camera and extracting discolored areas during or immediately after the thermal processing.

[0084] The material that changes color irreversibly may be a compound pigment containing cobalt, nickel, copper, etc., which changes color due to a change in composition caused by thermal decomposition, etc. As such a material, for example, a material known as an irreversible thermochromic paint may be used.

[0085] As a material that changes color reversibly, a paint that utilizes a physical change such as a transition of a compound's crystal system can be used. For example, a paint that uses mercuric iodide (II) salt can be used. As such a material, for example, a material known as an irreversible thermochromic paint (Thermocolor, Temp-Alarm, Thermopaint, etc.) can be used.

[0086] According to this example, when the electric wire 20 and the first sheet member 32 are fixed by heating, the portion 350 where the heat is applied sufficiently changes color due to the heat. In contrast, the portion 352 where the heat is applied sufficiently keeps its original color or changes color only slightly. Therefore, it is possible to visually confirm that the fixing is not performed by applying heat sufficiently.

[0087] In FIG. 7, the electric wire 20 is fixed to the first sheet member 32 at a plurality of points, but the electric wire 20 may be fixed to the first sheet member 32 over the entire length thereof.

[0088] This configuration is not limited to the wiring member 10 described in the above embodiment, but can be widely applied to cases where a linear transmission member (electric wire 20) is fixed to a sheet-like member.

[0089] At least one of the first sheet member 32 and the second sheet member 36 may be provided with a material that changes color when exposed to heat, so that when the two are fastened together, it is possible to check whether heat has been applied to the desired locations or areas.

[0090] The configurations described in the above embodiment and each modified example can be appropriately combined as long as they are not mutually contradictory. For example, the first modified example and the second modified example may be combined to use a mesh-like member as the first sheet member to which the electric wire 20 is fixed, and a sheet-like member with a uniformly filled interior may be used as the second sheet member.

[0091] Although the present invention has been described in detail as above, the above description is merely illustrative in all respects, and the present invention is not limited thereto. It is understood that countless variations not illustrated can be envisioned without departing from the scope of the present invention.

[0092] The present disclosure discloses the following aspects.

[0093] The wiring member of the first aspect comprises a linear transmission member, a first sheet member to which the linear transmission member is fixed to one main surface, and a second sheet member fixed to the other main surface of the first sheet member, wherein the first sheet member is more suitable for fixing the linear transmission member than the second sheet member, and a space is formed in one of the first sheet member and the second sheet member into which the other can be melted and filled, and the first sheet member and the second sheet member are superimposed in a state in which the other of the first sheet member and the second sheet member is melted and filled into the space of the one and solidified.

[0094] A second aspect is the wiring member according to the first aspect, wherein the melting point of one of the first sheet member and the second sheet member is higher than the melting point of the other of the first sheet member and the second sheet member.

[0095] A third aspect is a wiring member according to the first or second aspect, wherein the first sheet member is a sheet-like member having a uniformly filled interior, the second sheet member is a nonwoven sheet member containing a plurality of fibers in which spaces are formed between the plurality of fibers, and the first sheet member and the nonwoven sheet member are superimposed in a state in which the first sheet member melts, fills the spaces in the nonwoven sheet member and solidifies.

[0096] The fourth aspect is a wiring member according to the third aspect, wherein the first sheet member is melted, filled into the space on the first sheet member side of the nonwoven sheet member and solidified, and the space remains in a portion of the nonwoven sheet member away from the first sheet member.

[0097] A fifth aspect is a wiring member according to any one of the first to fourth aspects, wherein the first sheet member is formed from a resin of the same type as the coating of the linear transmission member.

[0098] A sixth aspect is a wiring member according to any one of the first to fifth aspects, wherein the coating of the linear transmission member and the first sheet member are formed from a resin whose main component is polyvinyl chloride, and the second sheet member is formed from a resin that is less stretchable than the first sheet member.

[0099] The laminated sheet of the seventh aspect comprises a first sheet member and a second sheet member fixed to the other main surface side of the first sheet member, wherein a space is formed in one of the first sheet member and the second sheet member into which the other can be melted and filled, and the first sheet member and the second sheet member are superimposed in a solidified state in which the other of the first sheet member and the second sheet member has melted and filled the space in the one of the first sheet member and the second sheet member.

[0100] According to the first aspect, the linear transmission member can be firmly fixed to the first sheet member. Also, since the first sheet member and the second sheet member are overlapped in a state in which one of the first sheet member and the second sheet member is melted and filled into the space between the other and solidified, the first sheet member and the second sheet member can be firmly overlapped and fixed.

[0101] According to the second aspect, when the first sheet member and the second sheet member are heated in a superposed state, the other of the first sheet member and the second sheet member tends to melt first, and therefore one of the first sheet member and the second sheet member can be melted and filled into a space between the other, allowing the two to be easily processed into a solidified state.

[0102] According to the third aspect, the linear transmission member can be easily and stably fixed to the sheet-like first sheet member whose inside is uniformly filled. Also, since the first sheet member is melted and filled into the spaces between the fibers of the nonwoven sheet member and solidified, the first sheet member and the nonwoven sheet member are overlapped, and therefore the first sheet member and the nonwoven sheet member can be kept firmly overlapped.

[0103] According to the fourth aspect, a space remains in the portion of the nonwoven sheet member that is separated from the first sheet member, and therefore, the nonwoven sheet member can provide protective performance and soundproofing properties.

[0104] According to the fifth aspect, since the first sheet member is formed of the same type of resin as the coating of the linear transmission member, it is easy to firmly fix the coating of the linear transmission member to the first sheet member.

[0105] According to the sixth aspect, the covering of the linear transmission member and the first sheet member can be easily fixed. Also, since polyvinyl chloride is easy to stretch, the overlapping first and second sheet members can be made less likely to stretch by using the second sheet member made of a resin less likely to stretch than the first sheet member.

[0106] According to the seventh aspect, the first sheet member and the second sheet member are overlapped in a state in which one of the first sheet member and the second sheet member is melted, filled, and solidified in the space between the other, so that the first sheet member and the second sheet member can be firmly overlapped and fixed. Also, since the first sheet member and the second sheet member can be overlapped regardless of the adhesiveness due to chemical interaction, for example, the first sheet member can be made of a material suitable for fixing to another member, and the second sheet member can be configured to ensure another function. [Explanation of symbols]

[0107] 10, 110, 210 Wiring materials 20 Electric wire (linear transmission component) 26 Covering 30 Laminated Sheet 32, 132 First sheet member 33 one main surface of first sheet member 34: other main surface of first sheet member 36, 136, 236 Second sheet member 37 Textiles 38, 238 space

Claims

1. A first sheet member; A second sheet member fixed to the other main surface side of the first sheet member; Equipped with a space is formed in one of the first sheet member and the second sheet member, the other of which can be melted and filled therein; A laminated sheet in which the first sheet member and the second sheet member are superimposed on each other with the other of the first sheet member and the second sheet member being melted and filled into the space of the other and solidified.

2. The laminate sheet according to claim 1, A laminated sheet, wherein the melting point of one of the first sheet member and the second sheet member is higher than the melting point of the other of the first sheet member and the second sheet member.

3. The laminate sheet according to claim 1 or 2, The first sheet member is a sheet-like member having a uniformly filled interior, The second sheet member is a nonwoven sheet member including a plurality of fibers, and the spaces are formed between the plurality of fibers. A laminated sheet, in which the first sheet member and the nonwoven sheet member are overlapped in a state in which the first sheet member is melted, filled in the spaces of the nonwoven sheet member, and solidified.

4. The laminate sheet according to claim 3, The first sheet member is melted and filled into the space on the first sheet member side of the nonwoven sheet member and then solidified, A laminated sheet, wherein the spaces remain in the portions of the nonwoven sheet members separated from the first sheet member.

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