Temporary fastening method for wire harness assemblies

Abstract

This invention provides a method for temporarily fastening a wire harness assembly to improve the efficiency of wire harness routing work when attaching the wire harness assembly to the back door of a vehicle. [Solution] A method for temporarily fixing a wire harness assembly 20 to an inner panel 11c constituting the back door 10 of a vehicle 1, the assembly 20 comprising a wire harness 24 and a soundproof assembly member 21 having two flexible laminated members that are laminated while sandwiching a portion of the electric wires 25 of the wire harness 24, wherein, before routing the electric wires 25 exposed from the assembly member 21 to the back door 10, a notch 27 is formed at each of the multiple corners 21a of the assembly member 21, with a portion of it opening outward from the edge of the assembly member 21, and the assembly member 21 is held to the inner panel 11c by individually hooking the multiple notches 27 onto the edges of the multiple openings 13 provided in the inner panel 11c.

Description

Technical Field

[0005]

[0001] The present invention relates to a method for temporarily fixing a wire harness assembly.

Background Art

[0002] Conventionally, in the manufacturing process of vehicles such as automobiles, there is a process of attaching a backdoor module having a wire harness to the inner panel of the backdoor. In this process, generally, an operator may have to lift the backdoor module upward with respect to the backdoor in an upwardly open state. Patent Document 1 discloses a technique related to a method of carrying a vehicle backdoor module from the outdoor side into the room through an opening surrounded by a window frame portion of a closed backdoor and attaching it to the inner panel on the indoor side of the backdoor in order to reduce the physical burden on the operator.

[0003] [[ID=1�]]On the other hand, as a structure assumed to be attached to the inner panel of the backdoor, a wire harness assembly having a panel-shaped assembly member excellent in sound insulation is cited separately from the backdoor module shown in Patent Document 1. Patent Document 2 discloses a technique related to a wire harness assembly provided with a sound insulation member having a porous body and a sheet-like body integrally provided on one surface side of the porous body, and a wire harness is disposed between the porous body and the sheet-like body.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] Let's consider a case where the mounting method for a vehicle back door module disclosed in Patent Document 1 is used to attach the wire harness assembly disclosed in Patent Document 2 to the inner panel of the back door. In this case, during the wire harness assembly mounting process, for example, it is not necessarily the case that the rear glass is not attached to the window frame of the back door, nor is it necessarily the case that all the wires of the wire harness can be routed through the opening in the window frame. Therefore, it is practically difficult to attach the wire harness assembly to the back door based on such assumptions.

[0006] On the other hand, consider a scenario where a worker lifts the wire harness assembly disclosed in Patent Document 2 upwards to install it on a back door that is open upwards. In this case, if the worker attempts to route the multiple wires of the wire harness to the back door, the assembly member will be suspended in mid-air in an unstable position. Such a suspended assembly member can hinder the worker's wiring work and therefore requires improvement.

[0007] This invention has been made in view of the problems of the prior art. The object of this invention is to provide a method for temporarily fastening a wire harness assembly to improve the work efficiency related to the routing of wire harnesses when attaching a wire harness assembly to the back door of a vehicle. [Means for solving the problem]

[0008] One aspect of the present invention is a method for temporarily fastening a wire harness assembly to an inner panel constituting the back door of a vehicle, the assembly comprising a wire harness and a soundproof assembly member having two flexible laminated members laminated while sandwiching a portion of the wires of the wire harness, wherein, before routing the wires exposed from the assembly member to the back door, notches are formed at each of the multiple corners of the assembly member, with a portion of each notch opening outward from the edge of the assembly member, and the assembly member is held to the inner panel by individually engaging the multiple notches with the edges of multiple openings provided in the inner panel. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a method for temporarily fastening a wire harness assembly to the back door of a vehicle, thereby improving the efficiency of the work involved in routing the wire harness. [Brief explanation of the drawing]

[0010] [Figure 1] This figure shows the temporary fastening state of the wire harness assembly according to the first embodiment. [Figure 2] This figure shows the back door in temporary fastening in the first embodiment. [Figure 3] This is a diagram of the back door in the first embodiment. [Figure 4] This is a diagram of the wire harness assembly before the cuts are formed. [Figure 5] This figure shows the temporary fastening process for a wire harness assembly according to the first embodiment. [Figure 6] This figure shows the state of utilization of the cutouts in the assembly member in the first embodiment. [Figure 7] This figure shows the back door in temporary fastening in the second embodiment. [Figure 8] This is a diagram of the wire harness assembly during cut formation in the second embodiment. [Figure 9] This figure shows the state of utilization of the cutouts in the assembly member in the second embodiment. [Modes for carrying out the invention]

[0011] The temporary fastening methods for wire harness assemblies according to each embodiment will be described in detail below with reference to the drawings. Note that the dimensional ratios in the drawings are exaggerated for illustrative purposes and may differ from the actual ratios.

[0012] (First Embodiment) Figure 1 is a perspective view showing the temporarily fastened state of the wire harness assembly 20 according to the temporary fastening method of the wire harness assembly 20 according to the first embodiment.

[0013] The wire harness assembly 20, which will be described in detail below, is attached to an inner panel 11c that constitutes a back door 10 of a vehicle 1 such as an automobile. Here, in the present embodiment, when the vehicle 1 is in a product state, that is, when the manufacturing process of the vehicle 1 is completed, the state of the wire harness assembly 20 is defined as the fixed state of the wire harness assembly 20.

[0014] On the other hand, during the manufacturing process of the vehicle 1, in the process of attaching the wire harness assembly 20 to the inner panel 11c, there is an operation of laying each electric wire 25, which is a part of the wire harness assembly 20, on the inner panel 11c. And in the present embodiment, when laying the electric wire 25, the state in which an attachment member 21, which is a part of the wire harness assembly 20, is held by the inner panel 11c is defined as the temporary fixing state of the wire harness assembly 20. Note that when the wire harness assembly 20 is in the fixed state, the temporary fixing state may be released and the wire harness assembly 20 may be fixed by adopting an attachment structure different from the attachment structure at the time of temporary fixing, or the attachment structure at the time of temporary fixing may be maintained as it is.

[0015] Also, in the present embodiment, the operation of laying the electric wire 25, including the temporary fixing operation of the wire harness assembly 20, is assumed to be performed by an operator with the back door 10 open upward as shown in FIG. 1. The specific structure of the vehicle 1 provided with the back door 10 and the structure for maintaining the open state of the back door 10 are not particularly limited. That is, these structures shown in FIG. 1 are examples.

[0016] FIG. 2 is a plan view showing the back door 10 in a state where the wire harness assembly 20 is temporarily fixed, as viewed from below the back door 10 in the open state shown in FIG. 1. In FIG. 2, the illustration of the structure of each part of the vehicle 1 other than the back door 10 is omitted. FIG. 3 is a plan view of the back door 10 in a state where the wire harness assembly 20 has not yet been temporarily fixed.

[0017] The back door 10 includes a back door main body 11 and a rear glass 12. The back door main body 11 is a structure composed of an inner panel 11c manufactured by subjecting a metal plate material to various processes and an outer panel (not shown) and the like. The back door main body 11 includes, for example, an upper structure portion 11a and a lower structure portion 11b.

[0018] The upper structure portion 11a is a structure portion located above the lower structure portion 11b in the back door main body 11 when the back door 10 is in a closed state. The upper structure portion 11a has a window frame portion 11e as an opening for assembling the rear glass 12. Further, in the present embodiment, since the back door 10 has a structure that opens upward, a plurality of hinge portions 16 for supporting the back door 10 to be openable and closable with respect to the vehicle 1 are attached to a connection portion of the upper structure portion 11a to the ceiling portion of the vehicle 1.

[0019] The lower structure portion 11b is a structure portion located at the lowest position near the ground surface in the back door main body 11 when the back door 10 is in a closed state. The assembly member 21 included in the wire harness assembly 20 is attached to a preset attachment region 11d on a portion of the inner panel 11c that is present in the lower structure portion 11b. Further, as shown in FIG. 1, when the back door 10 is in an open state, the lower structure portion 11b is inclined so that the side continuous with the upper structure portion 11a in the opening and closing direction is higher from the ground surface than the back door tip portion 11f on the opposite side in the opening and closing direction.

[0020] Furthermore, each inner panel 11c has a plurality of openings 13 near at least the corners of the mounting area 11d. The openings 13 are through-holes that lead from the outside of the inner panel 11c to the door interior space formed between the inner panel 11c and the outer panel. For example, the openings 13 may be used by workers to connect wires together or to insert tools from the outside when various wires are routed in the door interior space. The shape of the openings 13 is predetermined for each vehicle type 1. In this embodiment, the shape of the openings 13 is, as an example, elongated and includes an entry edge 13a that is suitable for entry into the notch 27 of the assembly member 21.

[0021] In the example shown in Figure 3, the inner panel 11c is provided with four openings 13, assuming that four notches 27, which are provided to match the four corners of the assembly member 21, will be used to engage them. Alternatively, the inner panel 11c may be provided with another opening 13 that none of the notches 27 can engage with.

[0022] Figure 4 is a perspective view of the wire harness assembly 20 before the notch 27 is formed. The wire harness assembly 20 is attached to the back door 10 as described above and is applied to the wire harness 24 routed through the back door 10. The wire harness assembly 20 comprises the wire harness 24 and the assembly member 21.

[0023] The wire harness 24 is arranged in a predetermined shape inside the assembly member 21, which is assembled integrally with it. The wire harness 24 comprises a plurality of electric wires 25 and a plurality of connectors 26.

[0024] The electric wire 25 is, for example, a coated electric wire in which the outer circumference of a core wire made of a conductive material is covered with an insulating coating. Alternatively, the electric wire 25 may be a flat cable in which multiple core wires are arranged in parallel and their outer circumference is covered with an insulating coating. The multiple electric wires 25 are arranged such that one end of each is concentrated at one location relative to the assembly member 21, and the other ends branch out to each other.

[0025] In this embodiment, the wire harness 24 has, for example, four wires 25: a first wire 25a, a second wire 25b, a third wire 25c, and a fourth wire 25d. Of these, the first wire 25a, the second wire 25b, and the third wire 25c are branch wires, so-called branch lines. On the other hand, the fourth wire 25d is a so-called main line, which combines the first wire 25a, the second wire 25b, and the third wire 25c.

[0026] The connector 26 comprises a housing made of an insulating material such as synthetic resin, and terminals (not shown) made of a conductive material. The housing mates with the mating housing of a mating connector (not shown) that is electrically connected to an electrical component mounted on the back door 10. The terminals are electrically connected to the end of the electric wire 25 and housed in the housing. The terminals are electrically connected to the mating terminal housed in the mating housing when the housing and the mating housing are mated.

[0027] Since the connector 26 is connected to the terminals of multiple electric wires 25, in this embodiment there are four connectors corresponding to four electric wires 25. The connector 26 connected to the terminal of the first electric wire 25a is the first connector 26a. The connector 26 connected to the terminal of the second electric wire 25b is the second connector 26b. The connector 26 connected to the terminal of the third electric wire 25c is the third connector 26c. The connector 26 connected to the terminal of the fourth electric wire 25d is the fourth connector 26d. The fourth connector 26d is connected to a mating connector routed from the vehicle body that supports the back door 10 in the vehicle 1.

[0028] The assembly member 21 is a long plate with a rectangular planar shape. The assembly member 21 comprises a base material 22 and a cover material 23, which are flexible and stacked together as laminated members.

[0029] The base material 22 is a sheet-like member formed from a sound-insulating material such as urethane foam, polypropylene fiber, polyethylene terephthalate fiber, or polyester fiber nonwoven fabric. The base material 22 is a long plate with its longitudinal direction aligned with the width direction of the back door 10. The thickness of the base material 22 is set to, for example, about 10 to 15 mm. On the inner surface of the base material 22 facing the cover material 23, portions of the multiple wires 25 of the wire harness 24 are arranged in a predetermined shape. The terminal ends of each wire 25 connected to the connector 26 are positioned outside the base material 22.

[0030] The cover material 23 is a sheet-like member formed from a sound-insulating material such as a film made of polyvinyl chloride or polyethylene, or closed-cell or continuous foam made of polyethylene, polypropylene, polystyrene, or elastomer. The planar shape of the cover material 23 is the same as the planar shape of the base material 22. The thickness of the cover material 23 is set to, for example, about 2 mm, which is thinner than the thickness of the base material 22. Adhesive is applied to the surface of the cover material 23 that faces the base material 22, and the cover material 23 is attached to the inner surface of the base material 22 so as to sandwich a portion of the multiple electric wires 25 between the cover material 23 and the base material 22.

[0031] In the assembly member 21, multiple electric wires 25 arranged in a predetermined shape are held between the base material 22 and the cover material 23 which are attached to each other. Therefore, the assembly member 21 can protect the electric wires 25 of the wire harness 24 and maintain the arrangement shape of the electric wires 25.

[0032] Furthermore, the assembly member 21 has sound-insulating properties because at least one of the base material 22 or the cover material 23 is made of a material as exemplified above. Such an assembly member 21, having sound-insulating properties, may also be referred to as a sound-absorbing material.

[0033] Next, a method for temporarily fastening the wire harness assembly 20 according to the first embodiment will be described.

[0034] Figure 5 is a perspective view illustrating the temporary fastening process corresponding to the temporary fastening method for the wire harness assembly 20 according to this embodiment. Figure 6 is a partial perspective view focusing on one notch 27 formed in the assembly member 21 as an example, showing the state of use of each notch 27. Hereinafter, the temporary fastening process will be performed when the back door 10 is open upward in the vehicle 1.

[0035] First, before the assembly member 21 of the wire harness assembly 20 is held in the mounting area 11d set on the inner panel 11c, four openings 13 are formed in the inner panel 11c. The process of forming the openings 13 may be a process in which the openings are formed in the inner panel 11c in advance during the manufacturing stage of the back door body 11, or it may be a process in which the openings are formed after the back door body 11 has been manufactured and in conjunction with the temporary fixing process.

[0036] Next, the wire harness assembly 20 illustrated in Figure 4 is prepared. Then, before the worker routes the multiple electric wires 25 exposed from the assembly member 21 of the wire harness assembly 20 to the back door 10, cuts 27 are formed in the four corners 21a of the assembly member 21.

[0037] Each notch 27 is formed parallel to the outer surface of the assembly member 21, as shown in Figure 5, such that a portion of it is open outward from the edge of the assembly member 21. Since the assembly member 21 is composed of two laminated members, a base material 22 and a cover material 23, the outer surface of the assembly member 21 corresponds to either the outer surface 22a of the base material 22 or the outer surface 23a of the cover material 23. Each notch 27 is formed in the base material 22. Since the base material 22 is made of a harder material than the cover material 23, such as urethane, it is easier to maintain the shape of the corner portion 21a even when the notch 27 is formed. Furthermore, since the base material 22 is made of a flexible material and is thicker than the cover material 23, the worker can easily form the notch 27 using a cutter or the like. Moreover, each notch 27 is formed so as to include a corner portion of the rectangular annular edge of the assembly member 21, which is composed of mutually orthogonal sides.

[0038] Furthermore, if the opening 13 is formed in conjunction with the temporary fixing process, the process of forming the notch 27 in the assembly member 21 may be performed before the process of forming the opening 13, or after the process of forming the opening 13.

[0039] Then, the worker positions the assembly member 21 in the mounting area 11d and holds it in place on the inner panel 11c by individually engaging the notches 27 with the edges of the multiple openings 13 provided in the inner panel 11c. In this embodiment, the notches 27 formed in the assembly member 21 positioned in the mounting area 11d are approximately parallel to the edges of the openings 13. Therefore, as shown in Figure 6, the worker engages the notches 27 with the edges of the openings 13 such that the notches 27 sandwich the edges of the openings 13 and a portion of the entry edge 13a.

[0040] As a result of this temporary fastening process, the assembly member 21 is temporarily fastened to the inner panel 11c as shown in Figure 1. Thereafter, the worker can route each of the electric wires 25 to the predetermined positions on the back door 10 without being hindered by the assembly member 21. For example, after temporarily fastening the assembly member 21, the worker may route the fourth electric wire 25d, which is a main line having a fourth connector 26d connected to the mating connector on the vehicle body side at its terminal, along a predetermined path using multiple clips 30, as shown in Figure 2. Subsequently, the worker may route the first electric wire 25a, the second electric wire 25b, and the third electric wire 25c, which are branch lines, along predetermined paths.

[0041] Next, the effects of the temporary fastening method for the wire harness assembly 20 according to the first embodiment will be described.

[0042] The temporary fastening method involves temporarily fastening a wire harness assembly 20 to an inner panel 11c that constitutes the back door 10 of a vehicle 1. The wire harness assembly 20 comprises a wire harness 24 and a soundproof assembly member 21 having two flexible laminated members that are laminated while sandwiching a portion of the electric wires 25 of the wire harness 24. In this temporary fastening method, before routing the electric wires 25 exposed from the assembly member 21 to the back door 10, notches 27 are formed at each of the multiple corners 21a of the assembly member 21, with a portion of each notch opening outward from the edge of the assembly member 21. Then, the assembly member 21 is held in place by individually hooking the multiple notches 27 onto the edges of the multiple openings 13 provided in the inner panel 11c.

[0043] Here, the two laminated members correspond to a base material 22 and a cover material 23, respectively, which are made of a flexible material, as shown in the above example.

[0044] Let's consider a scenario where a worker lifts the wire harness assembly 20 upwards to install it onto the back door 10, which is in an upward-opening position. In this case, the worker can temporarily fasten the assembly member 21 to the inner panel 11c by hooking the notches 27 formed in the multiple corners 21a of the assembly member 21 onto the multiple openings 13 formed in the inner panel 11c. Therefore, the worker can efficiently route the wires 25 of the wire harness 24 without being obstructed by the assembly member 21.

[0045] Furthermore, since this temporary fastening method allows for the direct use of the opening 13 already provided in the inner panel 11c, there is no need to separately prepare mounting members such as clamps, and therefore it can be easily implemented without increasing the number of parts required for temporary fastening.

[0046] As described above, according to this embodiment, it is possible to provide a method for temporarily fastening a wire harness assembly 20 that improves the work efficiency related to the routing of the wire harness 24 when attaching the wire harness assembly 20 to the back door 10 of the vehicle 1.

[0047] Furthermore, in the temporary fastening method for the wire harness assembly 20, the assembly member 21 may be a long plate with a rectangular planar shape. The notches 27 may be formed at each of the four corners 21a of the assembly member 21.

[0048] According to this temporary fastening method, the assembly member 21 is more stably held to the inner panel 11c at its four corners 21a, allowing the worker to route the wires 25 of the wire harness 24 more efficiently.

[0049] Furthermore, in the temporary fastening method for the wire harness assembly 20, the notches 27 may be formed parallel to the outer surface of the assembly member 21. The assembly member 21 may be held in place by each notch 27 gripping the edge of one of the openings 13.

[0050] Since the notch 27 is formed parallel to the outer surface of the assembly member 21, that is, on the side surface of the edge of the assembly member 21, the elastic deformation that occurs at the corner 21a of the assembly member 21 when the edge of the opening 13 is sandwiched in the notch 27 is relatively small. Therefore, with this temporary fastening method, the worker can apply the notch 27 to the edge of the opening 13 with relatively little force.

[0051] (Second Embodiment) In the temporary fastening method for the wire harness assembly 20 according to the first embodiment, an example was given in which the notches 27 formed in the multiple corners 21a of the assembly member 21 are formed parallel to the outer surface of the assembly member 21. In contrast, in the temporary fastening method for the wire harness assembly 20 according to the second embodiment, instead of notches 27, notches 28 are formed that penetrate the assembly member 21 in the thickness direction.

[0052] Figure 7 is a plan view showing the back door 10 with the wire harness assembly 20 in this embodiment temporarily fixed, drawn in accordance with Figure 2 relating to the first embodiment. Figure 8 is a perspective view of the wire harness assembly 20 with the notches 28 formed therein. Figure 9 is a partial perspective view focusing on one of the notches 28 formed in the assembly member 21 as an example, showing the utilization state of each notch 28.

[0053] In this embodiment, the temporary fastening process is also performed when the back door 10 is open in the vehicle 1. Furthermore, before the assembly member 21 is held in the mounting area 11d, four openings 13 are formed in the inner panel 11c, similar to the first embodiment. However, the shape of the openings 13 in this embodiment is an elongated hole shape, without the entry edge portion 13a found in the first embodiment.

[0054] In this embodiment, after the wire harness assembly 20 illustrated in Figure 4 is prepared, cuts 28 are formed in the four corners 21a of the assembly member 21 before the worker routes the multiple electric wires 25 exposed from the assembly member 21 to the back door 10.

[0055] As shown in Figure 8, each notch 28 is formed so that a portion of it is open outward from the edge of the assembly member 21 and penetrates the assembly member 21 in the thickness direction. In other words, the notch 28 penetrates both the base material 22 and the cover material 23, which are the two laminated members that make up the assembly member 21. Since the base material 22 and the cover material 23 are each made of a flexible material, the worker can easily form the notch 28 using a cutter or the like.

[0056] Furthermore, each of the cutouts 28 is formed along the opening and closing direction of the back door 10. In this embodiment, two of the four cutouts 28 are formed along the opening and closing direction of the back door 10 on the side of the overall rectangular annular edge of the assembly member 21 that faces the side where the hinge portion 16 is provided. The other two of the four cutouts 28 are formed along the opening and closing direction of the back door 10, opening out from the side of the overall rectangular annular edge of the assembly member 21 that faces the side where the back door tip portion 11f is provided.

[0057] Furthermore, if the opening 13 is formed in conjunction with the temporary fixing process, the process of forming the notch 28 in the assembly member 21 may be performed before or after the process of forming the opening 13.

[0058] Then, the worker positions the assembly member 21 in the mounting area 11d and holds it in place on the inner panel 11c by individually engaging the notches 28 on the edges of the multiple openings 13 provided in the inner panel 11c. In this embodiment, the notches 28 formed in the assembly member 21 positioned in the mounting area 11d allow the corner portion 21a to be elastically deformable independently toward the inner panel 11c. Therefore, as shown in Figure 9, the worker holds the assembly member 21 in place on the inner panel 11c by inserting a part of the corner portion 21a into the inside of the edge of the opening 13.

[0059] Even with the temporary fastening process according to this embodiment, the assembly member 21 is temporarily fastened to the inner panel 11c, so thereafter, the worker can route each electric wire 25 to the predetermined position on the back door 10 without being hindered by the assembly member 21.

[0060] Thus, in the temporary fastening method for the wire harness assembly 20 according to this embodiment, the notches 28 may be formed so as to penetrate the assembly member 21 in the thickness direction. The assembly member 21 may be held in place by the inner panel 11c as a part of each corner 21a fits inside the edge of any of the openings 13.

[0061] According to this temporary fastening method, a notch 28 is formed that penetrates both of the two laminated members constituting the assembly member 21, thereby increasing the strength when the corner portion 21a is placed over the opening 13. Therefore, according to this temporary fastening method, the assembly member 21 is held more stably in place by the inner panel 11c, allowing the worker to route the wires 25 of the wire harness 24 more efficiently.

[0062] Furthermore, in this temporary fastening method, the back door 10 may be supported so as to be able to open and close vertically by the hinge portion 16. The notch 28 may be formed along the opening and closing direction of the back door 10.

[0063] According to this temporary fastening method, each notch 28 is formed along the opening and closing direction of the back door 10, so that each corner 21a of the assembly member 21 fits inside the edge of the opening 13 along the opening and closing direction. Therefore, regardless of the opening angle of the back door 10, it is possible to prevent the assembly member 21 from sliding down towards the hinge portion 16 or the back door tip portion 11f.

[0064] In the above description, an example was given in which the planar shape of the assembly member 21 is rectangular, and consequently, notches 27 or notches 28 are formed at each of the four corners 21a. In contrast, if the planar shape of the assembly member 21 is more complex, for example, notches 27, etc., may be formed only at specific corners selected from among the multiple corners, while taking into consideration the position of the opening 13 that has been provided in advance in the inner panel 11c.

[0065] Furthermore, if the planar shape of the assembly member 21 is rectangular, and the force exerted when the corner portion 21a engages with the edge of the opening 13 is sufficient to hold the assembly member 21 regardless of the opening and closing angle of the back door 10, then notches 27, etc., may be formed in only two or three of the corner portions 21a.

[0066] Although each embodiment has been described above, the embodiments are not limited to these, and various modifications are possible within the scope of the gist of the embodiments. [Explanation of Symbols]

[0067] 1 vehicle 10 Back door 11c Inner Panel 13 Opening 20 Wire harness assembly 21 Assembly components 21a Corner 22 Base material 23 Cover material 24 Wire Harness 25 Electric wire 27, 28 cuts

Claims

1. A method for temporarily fastening a wire harness assembly to an inner panel constituting the back door of a vehicle, the assembly comprising a wire harness and a sound-insulating assembly member having two flexible laminated members that are laminated while sandwiching a portion of the wires of the wire harness, Before routing the exposed wires from the assembly member to the back door, At each of the multiple corners of the assembly member, a notch is formed that is partially open outward from the edge of the assembly member. A method for temporarily fastening a wire harness assembly, wherein the assembly member is held to the inner panel by individually engaging multiple notches with the edges of multiple openings provided in the inner panel.

2. The assembly member is a long plate with a rectangular planar shape, The method for temporarily fastening a wire harness assembly according to claim 1, wherein the notches are formed at each of the four corners of the assembly member.

3. The aforementioned cut is formed parallel to the outer surface of the assembly member, A method for temporarily fastening a wire harness assembly according to claim 1 or 2, wherein each of the aforementioned cuts clamps the edge of one of the aforementioned openings, thereby holding the assembly member to the inner panel.

4. The aforementioned cut is formed so as to penetrate the assembly member in the thickness direction, A method for temporarily fastening a wire harness assembly according to claim 1 or 2, wherein a portion of each of the aforementioned corners fits inside the edge of one of the aforementioned openings, thereby holding the assembly member to the inner panel.

5. The aforementioned back door is supported by a hinge that allows it to open and close vertically. The method for temporarily fastening a wire harness assembly according to claim 4, wherein the notch is formed along the opening and closing direction of the back door.

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