JP6280717B2 - Protective member for vehicle, wire harness assembly, and method for manufacturing wire harness assembly - Google Patents

Description

  The present invention relates to a vehicle protection member having soundproofing and heat insulating properties disposed on a wall portion such as a door or a ceiling of a vehicle, a wire harness assembly including the vehicle protection member, and a wire harness assembly The present invention relates to a method for manufacturing a body.

  In the vehicle, a wire harness for transmitting electric power, a control signal and the like to various electronic devices is routed. An example of a structure for assembling such a wire harness to a vehicle door is shown in FIGS. In this assembly structure, the wire harness 130 is fixedly attached to the soundproof sheet 104 as a vehicle protection member held between the door panel 102A of the vehicle door 102 and the door trim 102B. And by attaching this soundproof sheet 104 to the door panel, the wire harness 130 is assembled to the door trim 102B.

  The wire harness 130 includes an assembled wire 131 configured by bundling a plurality of covered wires, an exterior member 132 through which the assembled wire 131 is inserted, and a connector 133 attached to the end of the assembled wire 131. Yes. The exterior member 132 is provided with a plurality of locking portions 151 for attaching the assembled wire 131 to the soundproof sheet 104. The soundproof sheet 104 is formed in a flat plate shape by a nonwoven fabric such as a felt material. In the soundproof sheet 104, locking receiving portions 152 corresponding to the respective locking portions 151 are provided at a plurality of locations along the wiring path of the wire harness 130.

  However, in the assembly structure as described above, when the wiring route of the wire harness 130 becomes complicated as the number of electronic devices mounted on the vehicle increases, the locking portion 151 for attaching the wire harness 130 to the soundproof sheet 104 and There is a problem that the number of the engagement receiving portions 152 increases and the number of work steps for attaching the wire harness 103 to the soundproof sheet 104 increases.

  And the technique which solves such a problem is disclosed by patent document 1, for example. In the assembly structure disclosed in Patent Document 1, as shown in FIG. 10, a soundproof member 207 and a sheet 208 in which the wire harness 209 is routed are provided at the tips of the plurality of protrusions 204 and 205 of the door trim 201. Laminated and arranged. As a result, by fixing the laminated soundproof member 207 and the sheet 208 to each other, the wire harness 209 can be held without locking a plurality of portions of the wire harness 209 one by one. Can be suppressed.

JP 2005-329838 A

  However, in the assembly structure as described above, for example, as illustrated in FIG. 11, the terminal portion 209 a of the wire harness 209 is exposed from the soundproof member 207 and the sheet 208 that are stacked on each other. It is necessary to protect the terminal portion 209a by wrapping around the exposed terminal portion 209a, resulting in a problem that the manufacturing cost increases. Moreover, although the structure which protects the terminal part 209a by extending the soundproof member 207 and the sheet | seat 208 to the terminal part 209a and sandwiching between them is also considered, the ease of bending of the terminal part 209a falls, and workability | operativity is improved. There was another problem that would get worse.

  The present invention aims to solve this problem. That is, the present invention includes a vehicle protection member that can protect the terminal portion of the wire harness without separately providing a protection member, and can suppress a decrease in the bendability of the terminal portion, and the vehicle protection member. Another object of the present invention is to provide a wire harness assembly and a method for manufacturing the wire harness assembly.

In order to achieve the above object, the invention described in claim 1 is a vehicle protection member disposed on the wall portion of the vehicle to protect the wire harness routed on the wall portion of the vehicle. A sheet-like winding member having a plurality of laminated members laminated so as to sandwich the wire harness between each other and capable of being wound around a terminal portion of the wire harness exposed from the plurality of laminated members However, the protection member for a vehicle is provided integrally with the laminated member at a position where the terminal portion of the wire harness in one laminated member of the plurality of laminated members is exposed.

  According to a second aspect of the present invention, in order to achieve the above object, a wire harness routed on a wall portion of a vehicle and a wire harness arranged on the wall portion so as to sandwich the wire harness therebetween. A wire harness assembly having a plurality of laminated members laminated, the vehicle protective member comprising the vehicle protective member according to claim 1, wherein the winding The attachment member is a wire harness assembly that is wound around a terminal portion of the wire harness.

  According to a third aspect of the present invention, in order to achieve the above object, a wire harness routed on a wall portion of a vehicle and a wire harness disposed on the wall portion so as to sandwich the wire harness therebetween. And a protective member for a vehicle having a plurality of laminated members, wherein the wire harness is sandwiched between each other with its terminal portion exposed. A laminating step of laminating the plurality of laminating members; and a sheet-like winding integrally provided with the laminating member at a portion where the end portion of the wire harness in one of the laminating members is exposed And a winding step of winding the attachment member around the terminal portion.

  According to the present invention, the sheet-like winding member that can be wound around the terminal portion of the wire harness exposed from the plurality of laminated members is exposed, and the terminal portion of the wire harness in one laminated member of the plurality of laminated members is exposed. Are provided integrally with the laminated member. Since it did in this way, the said terminal part can be protected by winding the winding member integral with a lamination | stacking member around the terminal part of the wire harness exposed from the location in which it was provided. Therefore, the terminal portion of the wire harness can be protected without separately preparing a protective member. Thereby, an increase in manufacturing cost can be suppressed. Moreover, since the winding member provided integrally with one laminated member of the plurality of laminated members is wound around the terminal portion, the terminal portion is compared with a configuration in which the terminal portion is sandwiched between the laminated members. It is possible to suppress a decrease in bendability. Thereby, the fall of workability | operativity can be suppressed.

It is a perspective view which shows the door for vehicles provided with the wire harness assembly | attachment body concerning one Embodiment of this invention. It is a perspective view which shows the wire harness assembly body with which the vehicle door of FIG. 1 is provided, and a door trim. It is sectional drawing of the door for vehicles of FIG. It is a figure which shows typically the structure of the foam sheet with which the wire harness assembly | attachment body of the vehicle door of FIG. 1 is provided. It is a perspective view of the low foaming member and high foaming member which comprise the foam sheet of the wire harness assembly | attachment body of the vehicle door of FIG. It is a fragmentary perspective view explaining the lamination | stacking process in the manufacturing method of the wire harness assembly | attachment body of the vehicle door of FIG. It is a fragmentary perspective view explaining the winding process in the manufacturing method of the wire harness assembly of the vehicle door of FIG. It is sectional drawing which shows the conventional wire harness assembly structure. It is a disassembled perspective view which shows the wire harness assembly structure of FIG. It is sectional drawing which shows the other conventional wire harness assembly structure. It is a perspective view of the wire harness assembly structure of FIG.

  Below, the wire harness assembly concerning one Embodiment of this invention is demonstrated with reference to FIGS.

  FIG. 1 is a perspective view showing a vehicle door provided with a wire harness assembly according to an embodiment of the present invention. FIG. 2 is a perspective view showing a wire harness assembly and a door trim included in the vehicle door of FIG. 1. 3 is a cross-sectional view of the vehicle door of FIG. 4 is a diagram schematically showing the structure of a foam sheet provided in the wire harness assembly of the vehicle door of FIG. FIG. 5 is a perspective view of a low foam member and a high foam member constituting the foam sheet of the wire harness assembly of the vehicle door of FIG. 1. It should be noted that, for example, illustrations of structures such as door beams in FIG. 3 are omitted, and those having low relevance to the present invention are omitted from the drawings.

  The wire harness assembly 1 of this embodiment is arrange | positioned between the door panel 2A and the door trim 2B which the door 2 for vehicles has as shown in FIGS. 1-3.

  The door panel 2A is made of a steel plate and is provided on the outer side of the passenger compartment with respect to the door trim 2B. A window frame F on which the window glass W is located is provided on the inside of the door panel 2A.

  The door trim 2B is made of synthetic resin. The door trim 2B is provided with a plurality of fixing projections (not shown) on the outer surface of the door panel 2A. Each fixing projection has a columnar shaft portion standing from the outer surface of the door trim 2B, and a flange-shaped large-diameter portion integrally provided at the tip of the shaft portion. The dimension of the shaft portion is formed to be equal to or slightly smaller than the thickness of the foam sheet 4 of the wire harness assembly 1 described later. The wire harness assembly 1 to be described later is provided with a plurality of fixing holes 40 corresponding to these fixing protrusions. By pressing the fixing protrusions into the plurality of fixing holes 40, the wire harness assembly 1 is It is fixedly attached to the door trim 2B.

  The wire harness assembly 1 includes a flat cable 3 as a wire harness and a foam sheet 4 as a vehicle protection member.

  As shown in FIG. 3, the flat cable 3 includes a plurality of parallel core wires 31, an insulating covering portion 32 that covers each of the core wires 31, and an insulating connecting portion 33 that connects the adjacent covering portions 32. And. That is, the flat cable 3 is a band plate in which the dimension in the width direction (the direction in which the plurality of core wires 31 are arranged in FIG. 3) is larger than the dimension in the thickness direction (the direction perpendicular to the width direction in FIG. 3). It is formed in a shape.

  The core wire 31 of the flat cable 3 is configured by twisting a plurality of strands into a substantially circular cross section. The covering portion 32 and the connecting portion 33 are made of synthetic resin and are integrally formed with each other. A connector 34 is attached to each terminal of the flat cable 3. A part of the plurality of connectors 34 is connected to a power supply device, a control device, and the like, and the other part is connected to various electronic devices and motors.

  The foam sheet 4 has soundproofing properties and heat insulation properties, and is a vehicle protection member for suppressing noise and heat from entering the vehicle interior, that is, protecting from noise and heat. . As shown in FIGS. 4 and 5, the foam sheet 4 includes a low foam member 4A made of a foam material having a relatively low foam rate, and a high foam material made of a highly foamed foam material having a foam rate higher than that of the low foam member 4A. After the foaming member 4B is formed separately, these are laminated together and fixed by an adhesive member such as an adhesive or a double-sided tape. The low foaming member 4A and the high foaming member 4B correspond to laminated members.

  In the present embodiment, the low foam member 4A is made of polyethylene foamed with a foaming rate of 1 to 10 times. The highly foamed member 4B is made of polyurethane by foaming at a foaming rate of 10 to 50 times. The high foam member 4B is formed in a sheet shape having a smaller thickness than the low foam member 4A. Instead of the high foam member 4B, a laminated member made of a film (that is, a sheet) such as vinyl chloride or polyethylene laminated with the low foam member 4A may be used. Or it is good also as a structure using instead of the low foaming member 4A and the laminated member which consists of nonwoven fabrics, such as a polyester fiber laminated | stacked with the high foaming member 4B. Or it replaces with the foam sheet 4 as a vehicle protection member, and it is good also as a structure using the vehicle protection member by which the non-foaming laminated member was laminated | stacked. Such a foam sheet 4 comprising two layers of the low foam member 4A and the high foam member 4B can suppress the passage of sound in the frequency band of 100 to 10000 Hz (soundproofing). Moreover, since the low foaming member 4A and the high foaming member 4B contain air bubbles inside, the foamed sheet 4 can suppress the passage of heat (heat insulation). Further, the low foam member 4A and the high foam member 4B each have flexibility. In the present embodiment, the foam sheet 4 has a two-layer structure, but may be composed of three or more layers.

  Each of the low foaming member 4A and the high foaming member 4B is formed in accordance with the outer shape of the door trim 2B, and is formed so as to be thicker than the dimension in the thickness direction of the flat cable 3 when they are laminated. ing. The foam sheet 4 holds the flat cable 3 by sandwiching the flat cable 3 between the low foam member 4A and the high foam member 4B with the terminal portion 3a provided with the connector 34 exposed to the outside. .

  As shown in FIG. 5, the highly foamed member 4 </ b> B is integrally formed with the highly foamed member 4 </ b> B at a portion where the end portion 3 a of the flat cable 3 is exposed at the outer edge portion of the sheet member. Attaching member 42 is provided. The winding member 42 is provided with a notch 43 extending in the width direction at a location where it is connected to the high foam member 4B, and can be wound around the terminal portion 3a. In the present embodiment, the winding member 42 is formed in a substantially band shape in plan view, but is not limited thereto, and the shape is arbitrary as long as it can be wound around the terminal portion 3a of the flat cable 3. It is.

  The foam sheet 4 is provided with a plurality of fixing holes 40 into which fixing protrusions formed on the door trim 2B are press-fitted. The plurality of fixing holes 40 are provided at intervals in places other than the routing route of the flat cable 3. The fixing hole 40 is a through-hole formed in the foamed sheet 4, and the inner diameter dimension thereof is smaller than the outer diameter dimension of the large diameter portion of the fixing protrusion. The wire harness assembly 1 is fixedly attached to the door trim 2B by press-fitting the fixing projections of the door trim 2B into the foam sheet 4 (that is, the wire harness assembly 1) and the plurality of fixing holes 40. In this embodiment, when the foam sheet 4 is attached to the door trim 2B, the low foam member 4A is disposed on the door panel 2A side, and the high foam member 4B is disposed on the door trim 2B side. On the contrary, the high foam member 4B may be disposed on the door panel 2A side, and the low foam member 4A may be disposed on the door trim 2B side.

  Next, the manufacturing method of the wire harness assembly 1 mentioned above is demonstrated with reference to FIG. 6, FIG.

  First, the low foaming member 4A and the high foaming member 4B are molded separately. Simultaneously with the formation of the high foam member 4B, the winding member 42 is formed integrally with the high foam member 4B. Specifically, for example, after forming a sheet material made of foamed polyurethane, the sheet material is cut into a predetermined shape, thereby forming the highly foamed member 4B and the winding member 42 integral therewith.

  Next, the flat cable 3 is placed on the low foam member 4A. At this time, the terminal portion 3a of the flat cable 3 protrudes from the outer edge of the low foam member 4A. Then, the high foam member 4B is stacked on the low foam member 4A so as to sandwich the flat cable 3 with the terminal portion 3a exposed (lamination process). At this time, as shown in FIG. 6, the winding member 42 is disposed along the extending direction of the terminal portion 3 a of the flat cable 3. An adhesive member (not shown) such as an adhesive or a double-sided tape is provided on the surface of the high foam member 4B on the low foam member 4A side. Thereby, when the high foaming member 4B is stacked on the low foaming member 4A, they are fixed to each other with the flat cable 3 sandwiched between the adhesive members.

  Next, the winding member 42 provided integrally with the highly foamed member 4B is wound around the terminal portion 3a of the flat cable 3 as shown in FIG. 7 (winding step). Adhesive members (not shown) are provided on both edge portions facing the width direction of the winding member 42 (the left-right direction in FIG. 6). 3a is held in a wound state.

  The wire harness assembly 1 is completed through these steps. And the completed wire harness assembly 1 is fixedly attached to the door trim 2B by press-fitting fixing protrusions provided on the door trim 2B into the plurality of fixing holes 40.

  As described above, according to the present embodiment, the sheet-like winding member 42 that can be wound around the terminal portion 3a of the flat cable 3 has the high-foaming member 4B at the location where the terminal portion 3a of the high-foaming member 4B is exposed. And is provided integrally. Since it did in this way, the said terminal part 3a can be protected by winding the winding member 42 integral with the highly foamed member 4B around the terminal part 3a of the flat cable 3 exposed from the location in which it was provided. it can. Therefore, the terminal portion 3a of the flat cable 3 can be protected without preparing a protective member separately. Thereby, an increase in manufacturing cost can be suppressed. Moreover, since the winding member 42 provided integrally with the high foaming member 4B is wound around the terminal portion 3a, for example, compared with a configuration in which the terminal portion 3a is sandwiched between the high foaming member 4B and the low foaming member 4A. And the fall of the ease of bending of the said terminal part 3a can be suppressed. Thereby, the fall of workability | operativity can be suppressed.

  Although the present invention has been described with reference to preferred embodiments, the vehicle protection member, the wire harness assembly, and the method for manufacturing the wire harness assembly of the present invention are limited to the configurations of these embodiments. is not.

  For example, in the above-described embodiment, the vehicle protection member is formed of a foam sheet formed by laminating a low foam member and a high foam member, but the invention is not limited thereto. For example, the vehicle protective member has a first laminated member and a second laminated member laminated together, and the first laminated member is an open cell foam such as urethane, polypropylene fiber, polyethylene terephthalate fiber, or polyester fiber. The second laminated member may be composed of a film such as vinyl chloride or polyethylene, a closed foam such as polyethylene, polypropylene, or an elastomer, etc., as long as it is not contrary to the object of the present invention. The material of the laminated member included in the vehicle protective member is arbitrary.

  Moreover, in each embodiment mentioned above, although it was the structure provided with the flat cable 3 with which the covered round electric wire as a wire harness was connected, it is not limited to this. In addition to the flat cable, for example, an assembled electric wire or a flexible flat cable (FFC) may be used. As long as it can be sandwiched between the laminated members of the vehicle protection member, the type of the wire harness is not used unless it is contrary to the object of the present invention. Is optional.

  The above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, those skilled in the art can implement various modifications in accordance with conventionally known knowledge without departing from the scope of the present invention. Of course, such modifications are also included in the scope of the present invention as long as they include the configuration of the vehicle protection member, the wire harness assembly, and the method of manufacturing the wire harness assembly of the present invention.

1 Wire harness assembly 3 Flat cable (wire harness)
3a terminal part (terminal part of wire harness)
4 Foam sheet (protective member for vehicles)
4A Low foam material (laminate material)
4B Highly foamed member (laminate member)
42 Winding member

Claims (3)

A vehicle protection member disposed on the wall of the vehicle to protect a wire harness routed on the wall of the vehicle,
A plurality of laminated members laminated so as to sandwich the wire harness between each other;
The sheet-like winding member that can be wound around the end portion of the wire harness exposed from the plurality of laminated members is exposed at the end portion of the wire harness in one of the plurality of laminated members. A vehicle protection member, wherein the vehicle protection member is provided integrally with the laminated member at a location. A wire harness that is routed on a wall of the vehicle, and a vehicle protection member that is disposed on the wall and includes a plurality of laminated members that are laminated so as to sandwich the wire harness between each other. A wire harness assembly,
The vehicle protection member includes the vehicle protection member according to claim 1,
The wire harness assembly, wherein the winding member is wound around a terminal portion of the wire harness. A wire harness that is routed on a wall of the vehicle, and a vehicle protection member that is disposed on the wall and includes a plurality of laminated members that are laminated so as to sandwich the wire harness between each other. A method of manufacturing a wire harness assembly,
A laminating step of laminating the plurality of laminating members so as to sandwich the wire harness with the terminal portion exposed between each other;
A winding step of winding a sheet-like winding member provided integrally with the laminated member at a position where the terminal portion of the wire harness in one laminated member of the plurality of laminated members is exposed. When,
The manufacturing method of the wire harness assembly | attachment body characterized by having.

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