JP7643306B2 - Vehicle wiring harness arrangement structure - Google Patents

Description

The present invention relates to a vehicle wire harness routing structure that routes a vehicle wire harness along the outer surface of a vehicle body to which multiple exterior materials are attached.

This type of structure is described in Patent Document 1. The vehicle in Patent Document 1 has a door opening at the rear of the vehicle body, and this door opening is configured to be opened and closed by a vertically pivoting back door. A rear bumper cover extending in the vehicle width direction is attached to the underside of the door opening. A rear bumper filler (first exterior material) extending upwards of the vehicle is attached to the side of the rear bumper cover in the vehicle width direction. A rear lamp (second exterior material) extending upwards and downwards of the vehicle is attached to the upper side of the rear bumper cover so as to follow the side edge of the door opening. This rear lamp is a large rear combination lamp that combines various lamps, and extends from the upper end of the rear bumper filler toward the roof of the vehicle.

In the above vehicle, the wire harness for the electrical components is routed along the outer surface side of the vehicle body (the side facing the exterior material of the vehicle body, hereinafter sometimes simply referred to as the outer surface of the vehicle body) . For example, the back door may be operated electrically, and the wire harness for this back door is routed along the outer surface of the vehicle body. The wire harness for the back door is routed toward the back door through the back side of the rear bumper filler. The vehicle also includes a lamp side wire harness extending from the rear lamp and a vehicle side wire harness extending from the vehicle body as a wire harness for the rear lamp, which is an electrical component. The connection part of the lamp side wire harness is provided on the back side of the rear lamp. The vehicle side wire harness is routed on the outer surface through a hole in the vehicle body, and the hole in the vehicle body is formed at a rear side position so as to be hidden by the rear lamp in the installed state. For this reason, when mounting the rear lamp, the connecting portions of both wire harnesses must be connected together while holding the large rear lamp, and then the rear lamp must be mounted on the outer surface of the vehicle body.

JP 2015-98254 A

Here, in the above vehicle, there is a demand to route the wire harness in an appropriate location on the outer surface of the vehicle body, taking into account the configuration of the exterior material. For example, the wire harness for the back door is routed so as to pass through the back side of the rear bumper filler toward the back door, as described above. At this time, it is necessary to avoid as much as possible that a part of the wire harness for the back door protrudes excessively to the upper side of the vehicle and is pinched between the rear lamp and the vehicle body. In addition, when wiring the rear lamp, as described above, the wiring work is performed while holding the rear lamp, but the burden of this work increases as the rear lamp becomes larger. For this reason, it is desired to reduce the labor required for installing the rear lamp by adjusting the wiring position of the wire harness for the rear lamp, especially the position of each wiring part. The present invention was devised in consideration of the above points, and the problem that the present invention aims to solve is to route the wire harness in an appropriate location on the outer surface of the vehicle body, taking into account the configuration of the exterior material.

As a means for solving the above problem, the vehicle wire harness arrangement structure of the first invention is a structure in which a plurality of exterior materials forming the outer surface of a vehicle body are attached, and a vehicle wire harness is arranged so as to be along the outer surface side of the vehicle body. In this type of structure, it is preferable to arrange the wire harness at an appropriate position on the outer surface side of the vehicle body in consideration of the configuration of the exterior materials. Here, on the outer surface side of the vehicle body of the present invention, a first region to which a first exterior material is attached and a second region to which a second exterior material is attached are set so as to be adjacent to each other, and electrical components are provided in at least one of the second region and a peripheral region around the second region excluding the first region. Therefore, in the vehicle wire harness arrangement structure of the present invention, the wire harness and a part of another wire harness are arranged so as to pass through the first region toward the electrical components, and a holding portion capable of holding a part of the wire harness and a part of the other wire harness is provided in the first region.

In the present invention, the retaining portion provided in the first region can retain a portion of the wire harness facing the electrical component. For example, by retaining a portion of the wire harness facing the electrical component provided in the peripheral region within the first region, the portion of the wire harness can be routed so that it does not protrude into the second region. Furthermore, when a second exterior material provided with electrical components is attached to the second region, the portion of the wire harness facing the electrical component (the connection portion) can be retained within the first region, thereby reducing the effort required for attaching the second exterior material.

The retaining portion of the vehicle wire harness wiring structure of the first invention has a reinforcing portion that reinforces the vehicle body portion to which the first exterior material is attached, a first retaining portion capable of retaining the connection portion of the wire harness, and a second retaining portion capable of retaining a part of the wire harness excluding the connection portion in a hooked state, and the second retaining portion is formed in a claw shape that protrudes from the edge of the reinforcing portion in a direction approaching the second region, and the tip side of the second retaining portion is bent in a direction toward the vehicle body and away from the second region . In the present invention, the first retaining portion and the second retaining portion can be selectively provided or provided together depending on the wire harness to be wired in the vehicle. This makes it possible to retain the connection portion of the wire harness by the first retaining portion, and to retain a part of another wire harness excluding the connection portion by the second retaining portion.
In addition, in the present invention, the holding portion that holds a part of the wire harness can also be used as a reinforcing member that reinforces the vehicle body portion to which the first exterior material is attached. Since the holding portion is attached to the outer surface of the vehicle body, the part of the wire harness that faces the electrical component can be held when the first exterior material is removed.

The second invention relates to a vehicle wire harness arrangement structure, and more particularly, to a vehicle wire harness arrangement structure according to the first invention , in which the retaining portion is attached to a mounting portion provided between the vehicle body and the first exterior material. In this invention, a part of the wire harness arranged between the vehicle body and the first exterior material can be held by the retaining portion also attached between the vehicle body and the first exterior material.

The vehicle wire harness arrangement structure of the third invention is the vehicle wire harness arrangement structure of the first or second invention, which has a lamp as an electrical component provided on the second exterior material and another electrical component provided in the peripheral area. In the present invention, for example, a part of the wire harness toward the other electrical component in the peripheral area can be arranged by the holding part so as not to protrude as much as possible on the second exterior material side where the lamp is provided. Also, the connection part (part) of the lamp side wire harness provided on the second exterior material and the connection part of the vehicle side wire harness arranged on the vehicle body side can be connected (connected) within the first area where the holding part is provided.

The fourth invention is a vehicle wire harness routing structure according to any one of the first to third inventions, in which the electrical component and the retaining portion are provided in a vehicle body located in the same plane on the rear surface of the vehicle in a plan view of the rear surface of the vehicle in the vehicle front-rear direction . In this invention, since the electrical component and the retaining portion are provided in the vehicle body part in the same plane, the routing distance of the wire harness between the retaining portion and the electrical component is shorter than when they are separated into different planes.

According to the first aspect of the present invention, the wire harness can be routed at an appropriate location on the outer surface of the vehicle body, taking into consideration the configuration of the exterior material. According to the first aspect of the present invention, the wire harness can be routed more appropriately. According to the first aspect of the present invention, the wire harness can be routed at an appropriate location on the outer surface of the vehicle body while ensuring the attachment of the exterior material. According to the second aspect of the present invention, the wire harness can be routed even more appropriately. According to the third aspect of the present invention, the wire harness can be routed at an appropriate location on the outer surface of the vehicle body, taking into consideration the exterior material provided with lamps, etc. And according to the fourth aspect of the present invention, the wire harness can be routed even more appropriately.

FIG. 2 is a schematic perspective view of the vehicle as seen from the right rear. FIG. 2 is a plan view of the right side of the vehicle as seen from the rear. FIG. 2 is a perspective view of the right side of the vehicle showing a first region of the vehicle body. 4 is a cross-sectional view of the vehicle taken along line IV-IV in FIG. 2. FIG. 2 is a right-side front view of the vehicle showing a second region of the vehicle body. FIG. 4 is an enlarged plan view of the holding portion showing the first holding portion. FIG. 11 is an enlarged perspective view of the holding portion showing the second holding portion. FIG. 11 is a cross-sectional view of a vehicle showing a modified example of the vehicle.

Below, an embodiment of the present invention will be described with reference to Figures 1 to 8. In each figure, arrows indicating the front-rear, left-right (vehicle width direction), and up-down (vehicle height direction) directions of the vehicle are appropriately illustrated. For convenience, in the vehicle shown in each figure, only the members on the right side of the vehicle are given the corresponding symbols.

[Vehicle rear structure]
Before describing the wiring harness arrangement structure of a vehicle, the rear structure of a vehicle 2 shown in FIG. 1 will be described. A door opening 4 is provided on the rear surface (vehicle body 3) of the vehicle 2, and the door opening 4 is configured to be openable and closable by a back door 5 that can be rotated up and down. A rear bumper cover 6 extending in the vehicle width direction is attached to the lower side of the door opening 4. A rear bumper filler 10, which is an extension member of the rear bumper cover 6, is attached to both ends of the rear bumper cover 6 in the vehicle width direction. The rear bumper filler 10 extends upward along the edge of the back door 5 (door opening 4) in the vehicle width direction, and a rear lamp 20 is attached to the upper side of the rear bumper filler 10. The rear lamp 20 is formed so as to extend from the upper end of the rear bumper filler 10 toward the roof portion 9, and is arranged so as to follow the edge of the back door 5 (door opening 4) in the vehicle width direction. The rear lamp 20 is a rear combination lamp equipped with a plurality of lamps, and is large and heavy compared to a normal size lamp.

2, the vehicle 2 has a back door wire harness 60 and a rear lamp wire harness 70 wired on the outer surface of the vehicle body 3. The back door 5 is configured to be opened and closed electrically, and a switch unit 7 for the back door is provided on the right side of the vehicle 2. That is, the switch unit 7 is provided on the upper surface of a side member 8 provided on the right side of the vehicle 2, and the above-mentioned rear bumper filler 10 is provided on the rear side of the side member 8. The back door wire harness 60 is wired from the side member 8 through the back side of the rear bumper filler 10 toward the back door 5. The rear lamp wire harness 70 has a lamp side wire harness 71 extending from the back side of the rear lamp 20 and a vehicle side wire harness 72 wired on the vehicle body 3 side. The connection portion 710 of the lamp side wire harness 71 and the connection portion 720 of the vehicle side wire harness 72 are connected to form the rear lamp wire harness 70.

[Vehicle Wire Harness Routing Structure]
3, the vehicle wire harness arrangement structure is a structure in which the above-mentioned wire harnesses 60, 70 are arranged along the outer surface of the vehicle body 3 to which the rear bumper filler 10, rear lamps 20, etc. are attached. With reference to Figures 2 and 3, the rear bumper filler 10 corresponds to a first exterior material of the present invention, and is attached so as to cover the outer surface of a first region 31 of the vehicle body 3, which will be described later. With reference to Figures 2 and 5, the rear lamp 20 corresponds to a second exterior material of the present invention, and is attached so as to cover the outer surface of a second region 32 of the vehicle body 3, which will be described later.

In the vehicle 2 having the above configuration, referring to Figs. 2 and 3, there is a demand to route each wire harness 60, 70 while taking into consideration the configuration of the rear bumper filler 10 and the rear lamp 20 (exterior material). That is, the wire harness 60 for the back door is routed through the back side of the rear bumper filler 10 as described above, but the rear lamp 20 is attached to the upper side of the vehicle of the rear bumper filler 10. For this reason, it is necessary to avoid as much as possible that a part of the wire harness 60 for the back door protrudes excessively from the rear bumper filler 10 to the upper side of the vehicle and is sandwiched between the rear lamp 20 and the vehicle body 3. In addition, since the rear lamp 20 is large, there is a demand to route the wire harness 70 for the rear lamp while taking into consideration the installation work, and therefore it is necessary to consider the position of each connection part (710, 720). Therefore, in the wire harness routing structure of the vehicle, the wire harnesses 60, 70 are routed in appropriate positions on the outer surface of the vehicle body 3 by using the holding part 50 described later. Below, the vehicle's wire harness routing structure will be explained in the order of its basic configuration (rear bumper filler 10, rear lamp 20, vehicle body 3) and the retaining part 50.

[Rear bumper filler]
First, the rear bumper filler 10 is formed in a rectangular shape long in the vertical direction of the vehicle as shown in FIG. 2, and extends along the right edge of the back door 5 in the vehicle width direction as described above. In addition, the rear bumper filler 10 is gently inclined toward the front of the vehicle as it approaches the right side in the cross-sectional view shown in FIG. 4. The right end 11 of the rear bumper filler 10 is engaged with the side member 8 located on the right side of the vehicle 2. That is, the rear end 80 of the side member 8 is bent at a substantially right angle toward the inside of the vehicle (left side in FIG. 4), and the engaged portion 81 is formed so as to protrude toward the rear side of the vehicle at the bent rear end 80 of the side member 8. The right end 11 of the rear bumper filler 10 is formed with an arrowhead-shaped engaging portion 12 that protrudes toward the inside of the vehicle (left side in FIG. 4), and the arrowhead-shaped engaging portion 12 is engaged with the engaged portion 81 of the side member 8. In addition, the left end 13 of the rear bumper filler 10 is bent toward the front of the vehicle at the right position of the tailgate 5, and the front end portion (not shown) of the bent left end 13 is connected to the vehicle body part on the door opening side via a connector (not shown).

[Rear lamp]
The rear lamp 20 shown in Fig. 1 is formed in a rectangular shape that is long in the vertical direction of the vehicle, and extends from the upper end of the rear bumper filler 10 toward the roof portion 9 as described above. The rear lamp 20 is equipped with a backup lamp, a brake lamp, and a turn signal (all of which are electrical components), and a lamp-side wire harness 71 is attached to the rear side of the rear lamp 20 as shown in Figs. 2 and 3. The lamp-side wire harness 71 hangs down from the rear side of the rear lamp 20 toward the lower side of the vehicle, and a connector-shaped connection part 710 is provided at its lower end. The rear lamp 20 can be attached to the second region 32 of the vehicle body 3 (described later) by an appropriate attachment method such as the above-mentioned connector.

[Vehicle body]
3 and 5, a first region 31 where the rear bumper filler 10 is attached and a second region 32 where the rear lamp 20 is attached are set adjacent to each other on the vehicle body 3 at the rear side of the vehicle 2. The first region 31 shown in FIG. 3 is a portion of the vehicle body 3 located at the end (right side in FIG. 3) of the back door 5 in the vehicle width direction, and is formed to extend in the vehicle vertical direction. The first region 31 is formed with a through hole 311 for drawing the vehicle side wire harness 72 to the outer surface side. The through hole 311 is formed on the upper left side of the first region 31, and the connection portion 720 of the vehicle side wire harness 72 is drawn to the outer surface side of the vehicle body 3 through the through hole 311.

As shown in FIG. 4, the first region 31 is formed to extend in the vehicle width direction in cross section. In the first region 31, the right side of the vehicle body 3 is bent toward the rear of the vehicle in a crank shape, and the rear end 80 of the side member 8 described above is overlapped on this bent right side portion 310. The right side portion 310 of the vehicle body 3 and the rear end portion 80 of the side member 8 form an attachment portion 40, to which a retaining portion 50 (described later) can be attached. As shown in FIG. 3, the attachment portion 40 is formed to extend in the vehicle vertical direction, and a plurality of insertion portions 41 for inserting the connecting device 42 are formed at predetermined intervals in the vehicle vertical direction.

Referring to FIG. 5, the vehicle body 3 on the rear side of the vehicle 2 is formed with a second region 32 in which the rear lamps 20 are attached. This second region 32 is a portion of the vehicle body 3 adjacent to the upper side of the rear bumper filler 10 (first region 31) and extends upward along the edge of the back door 5 in the vehicle width direction. The back door 5 is disposed to the left of the second region 32, and the location where the back door 5 is disposed corresponds to the peripheral region surrounding the second region excluding the first region of the present invention. In a plan view of the vehicle 2 shown in FIG. 5 seen from the rear, the second region 32 in which the rear lamps 20 are attached and the peripheral region 33 in which the back door 5 is provided are arranged in the same plane as the first region 31 described above.

[Holding part]
Next, the holding portion 50 shown in Fig. 1 to Fig. 4 will be described (in Fig. 3, for convenience, the holding portion is illustrated by a dotted line in order to illustrate the vehicle body through the holding portion). The holding portion 50 is a member capable of holding a part of each wire harness (60, 70) shown in Fig. 3, and has a reinforcement portion 500 forming its main body. Here, the reinforcement portion 500 is formed so as to extend in the vehicle vertical direction and to be aligned with the mounting portion 40. In addition, as shown in Fig. 4, the reinforcement portion 500 is formed with an insertion hole H through which the connector 42 can be inserted so as to be aligned with the insertion portion 41 of the mounting portion 40. In addition, the right edge portion 501 and the left edge portion 502 of the reinforcement portion 500 are bent at approximately right angles toward the rear of the vehicle at appropriate positions in the vehicle vertical direction.

The reinforcement portion 500 functions as a so-called retainer rear bumper side and is configured to reinforce the mounting portion 40 (the outer surface portion of the vehicle body 3 to which the rear bumper filler 10 is attached) shown in FIG. 3. That is, as shown in FIG. 4, the reinforcement portion 500 of the holding portion 50 is arranged along the mounting portion 40. Next, the connector 42 is passed through the insertion hole H of the holding portion 50 and inserted into the insertion portion 41 of the mounting portion 40. As a result, the right side portion 310 of the vehicle body 3 and the rear end portion 80 of the side member 8, which constitute the mounting portion 40, are joined in a reinforced state by the holding portion 50. The holding portion 50 (reinforcement portion 500) functions to prevent the rear bumper filler 10 from sagging due to vibrations during vehicle driving, etc., as much as possible, and is configured to ensure the mounting property. Furthermore, the retaining portion 50 attached to the mounting portion 40 (first region 31) is disposed in the same plane as the second region 32 and the peripheral region 33 in a plan view of the vehicle 2 seen from the rear as shown in FIG. 2.

[Retention site]
6, a pair of upper and lower first holding portions 51a, 51b are formed on the left side of the holding portion 50. The upper and lower first holding portions 51a, 51b are each configured to hold each of the connection portions (710, 720) of the rear lamp wire harness 70. The upper first holding portion 51a is formed in a plate shape that protrudes from the left edge of the reinforcement portion 500 toward the vehicle inner side (left side of FIG. 6). The left side of the upper first holding portion 51a is bent in a crank shape toward the vehicle front side, and the bent tip portion is capable of detachably holding the connection portion 710 of the lamp side wire harness 71. The lower first holding portion 51b is formed on the vehicle lower side of the upper first holding portion 51a. The lower first holding portion 51b is also formed in a plate shape that protrudes from the left edge of the reinforcement portion 500 toward the vehicle inner side, and the tip portion is capable of detachably holding the connection portion 720 of the vehicle side wire harness 72. Furthermore, in each of the first retaining portions 51a, 51b, a structure for removably retaining the corresponding connecting portion can be adopted, such as a structure for hooking or locking the connecting portion, a structure for fitting the connecting portion, or a structure for magnetically attracting the connecting portion.

Also, as shown in FIG. 7, a second holding portion 52 is formed on the upper side of the holding portion 50. This second holding portion 52 is configured to hold a part of the back door wire harness 60 (excluding the connection portion) in a hooked state. The part of the back door wire harness 60 (excluding the connection portion) is mainly a part in which the conductor is covered with an insulating coating and has moderate flexibility. The second holding portion 52 is formed in a claw shape that protrudes from the upper edge of the reinforcement portion 500 of the holding portion 50 to the upper side of the vehicle, and the upper side is bent to the front side and downward of the vehicle. As a result, the part of the back door wire harness 60 is hooked on the second holding portion 52 as described later, and is held by the holding portion 50 in a state where it is prevented from moving to the upper side of the vehicle. In addition to the above-mentioned claw shape, the second holding portion 52 can also adopt a hooking or locking structure or a fitting structure as a structure for holding a part of the corresponding wire harness.

[Wire harness installation (function of the holding part)]
2 and 3, in the vehicle 2, the rear lamp 20 and the rear bumper filler 10 can be attached to the vehicle body 3 in this order. Then, before attaching the rear bumper filler 10, the wire harness 60 for the back door and the wire harness 70 for the rear lamp are routed along the outer surface of the vehicle body 3. At this time, it is desirable to route each of the wire harnesses 60, 70 in an appropriate position on the outer surface of the vehicle body 3, taking into consideration the configurations of the rear lamp 20 and the rear bumper filler 10, as described above.

In the vehicle wire harness wiring structure, referring to FIG. 3, each wire harness 60, 70 is routed through the first region 31 of the vehicle body 3 toward the electrical components (back door 5, rear lamp 20). As shown in FIG. 6 and FIG. 7, a holding portion 50 capable of holding a part of each wire harness 60, 70 is provided in the first region 31. The holding portion 50 has first holding portions 51a, 51b capable of holding each connection portion (710, 720) of the wire harness 70 for the rear lamp, and a second holding portion 52 capable of holding a part of the wire harness 60 for the back door in a hooked state. According to the above configuration, the holding portion 50 provided in the first region 31 can hold a part of the wire harness toward the electrical components (5, 20). The function of the holding portion 50 will be described in the order of the wire harness 60 for the back door and the wire harness 70 for the rear lamp.

First, the back door wire harness 60 shown in Figures 3 and 7 is routed so as to pass behind the rear bumper filler 10 toward the back door 5. When the back door wire harness 60 is routed, the rear bumper filler 10 has not yet been attached as described above, so the retaining portion 50 of the first region 31 is exposed to the outside. Therefore, a portion of the back door wire harness 60 is hooked onto the second retaining portion 52 of the retaining portion 50 and held within the first region 31 so as not to move toward the upper side of the vehicle. This allows a portion of the back door wire harness 60 to be routed so as not to protrude excessively toward the second region 32 where the rear lamp 20 is attached.

[Rear lamp installation work]
Next, the operation of attaching the rear lamp 20 shown in Fig. 2, i.e., the function of the holding portion 50 when connecting the wire harness 70 for the rear lamp, will be described. When attaching the rear lamp 20 to the second region 32, as shown in Fig. 3, the rear bumper filler 10 is not attached, and the holding portion 50 in the first region 31 is exposed to the outside. Then, the connection portion 710 of the lamp side wire harness 71 hanging from the back surface of the rear lamp 20 is held by the first holding portion 51a on the upper side of the holding portion 50 as shown in Fig. 6. Also, the connection portion 720 of the vehicle side wire harness 72 is held by the first holding portion 51b on the lower side of the holding portion 50. Then, after attaching the rear lamp 20 to the second region 32 of the vehicle body 3 in this state, the connection portions of the wire harnesses 60, 70 are connected to each other, thereby completing the installation operation of the rear lamp 20. According to the above configuration, the installation work and the wiring work of the rear lamp 20 can be performed separately, and there is no need to hold the rear lamp 20 while wiring, so that the labor required for the installation work of the rear lamp 20 can be reduced. Each wiring part (710, 720) of the wire harness 70 for the rear lamp can be held in either the upper or lower first holding part 51a, 51b while maintaining its wiring state. When the vehicle 2 is viewed from the rear, the rear lamp 20 (electrical component) and the holding part 50 are arranged in the same plane. Therefore, the wiring distance of the wire harness between the rear lamp 20 and the holding part 50 can be shortened compared to the case where the holding part 50 is arranged in a different plane (see the modified example described later).

[Rear bumper filler installation work]
When mounting the rear bumper filler 10 shown in Fig. 4, the rear bumper filler 10 is aligned with the first region 31 from the rear side of the vehicle. Next, the right end 11 of the rear bumper filler 10 is engaged with the above-mentioned side member 8, and the left end 13 of the rear bumper filler 10 is connected to the vehicle body 3, thereby mounting the rear bumper filler 10 to the vehicle body 3. By mounting the rear bumper filler 10 in this manner, the wire harnesses 60, 70 routed between the rear bumper filler 10 and the vehicle body 3 are held by the holding portion 50 similarly mounted between the rear bumper filler 10 and the vehicle body 3. In a configuration in which the rear bumper filler 10 is mounted from the rear side of the vehicle, the right end 11 of the rear bumper filler 10 is disposed on the vehicle rear side. As a result, the parting line X between the rear bumper filler 10 and the side member 8 is unlikely to appear on the right side surface of the vehicle, and the effort of matching the colors of the rear bumper filler 10 and the side member 8 can be saved.

[Modification]
Here, the configuration of the first region and the mounting method of the rear bumper filler are not limited to the above configuration, and various configurations can be used. For example, in the first region 31 of the modified example shown in FIG. 8, the rear end 80a of the side member 8 is overlapped on the right side portion 310 of the vehicle body 3. The rear end portion 80a of the side member 8 is bent in a crank shape toward the inside of the vehicle and extends in the vehicle front-rear direction, and the rear end side is bent toward the inside of the vehicle and overlapped on the right side portion 310 of the vehicle body 3. The vertical holding portion 50 is attached to the rear end portion 80a (mounting portion 40a) of the side member 8 extending in the vehicle front-rear direction so as to face rightward. In this modified example, the holding portion 50 is disposed on the right side surface (another plane) of the vehicle 2, and is therefore not disposed in the same plane as the back door and rear lamp (electrical components) not shown. Even in such a case, it is possible to hold a part of each wire harness in the holding portion 50.

Next, the configuration of this embodiment and the configuration of the modified example will be compared and explained. In the modified example shown in FIG. 8, the vertically oriented retaining portion 50 is attached to the mounting portion 40a extending in the vehicle longitudinal direction so as to face the right side. Therefore, the right end portion 11a of the rear bumper filler 10A protrudes significantly toward the front of the vehicle so as to cover the vertically oriented retaining portion 50, and the width dimension L1 from the front to the rear is large. If it is better to make the width dimension of the rear bumper filler 10A larger in terms of the design of the vehicle 2, it is desirable to adopt the configuration of the modified example. In the embodiment shown in FIG. 4, the horizontally oriented retaining portion 50 is attached to the mounting portion 40 extending in the vehicle width direction so as to face the rear side. Therefore, the front to rear width dimension L2 of the rear bumper filler 10 is reduced and narrowed so as to cover the horizontally oriented retaining portion 50. If it is better to have a smaller width dimension of the rear bumper filler 10 in terms of the design of the vehicle, it is desirable to adopt the configuration of the embodiment. In addition, in the configuration of the embodiment, the width of the rear bumper filler 10 can be narrowed and the portion of the side member 8 that is bent toward the front of the vehicle can be omitted, which contributes to reducing the weight of the vehicle and preventing costs from increasing.

As described above, in this embodiment, the holding portion 50 provided in the first region 31 can hold a part of the wire harness (60, 70) facing the electrical component (5, 20). For example, in this embodiment, the back door 5 (another electrical component) is provided in the peripheral region 33. The holding portion 50 can be used to route a part of the back door wire harness (60) facing the back door 5 so that it does not protrude toward the rear lamp 20 as much as possible. The rear lamp 20 (second exterior material) is also provided with a back lamp, a brake lamp, and a turn signal (electrical component). By holding a part of the wire harness (connection portion 710) facing the rear lamp 20 within the first region 31, the effort required for installing the rear lamp 20 can be reduced. That is, the holding portion 50 can connect the connection portion 710 of the lamp side wire harness 71 and the connection portion 720 of the vehicle side wire harness 72 arranged on the vehicle body 3 side within the first region 31. Therefore, according to this embodiment, taking into account the configuration of the exterior material, each wire harness (60, 70) can be routed in an appropriate location on the outer surface of the vehicle body 3.

Furthermore, in this embodiment, a part of the wire harness (60, 70) arranged between the outer surface of the vehicle body 3 and the rear bumper filler 10 can be held by the holding part 50 attached between the outer surface of the vehicle body 3 and the rear bumper filler 10. In this embodiment, the holding part 50 that holds a part of the wire harness can also be used as a reinforcing member that reinforces the vehicle body part (mounting part 40) to which the rear bumper filler 10 is attached. And since the holding part 50 is attached to the outer surface of the vehicle body 3, it is possible to hold a part of the wire harness (60, 70) that faces the electrical component (5, 20) when the rear bumper filler 10 is removed. And in this embodiment, since the electrical component (5, 20) and the holding part 50 are provided in the vehicle body 3 part in the same plane, the wiring distance of the wire harness between the holding part 50 and the electrical component is shorter than when they are separated into different planes.

The vehicle wire harness arrangement structure of this embodiment is not limited to the above-mentioned embodiment, and various other embodiments are possible. In this embodiment, the configuration of the holding portion is exemplified, but the configuration of the holding portion is not limited. At least one of a first holding portion and a second holding portion can be provided in the holding portion, and either of the two holding portions can be selected depending on the configuration of the exterior material. Note that at least one first holding portion is sufficient, and one holding portion can be configured to hold multiple wiring portions. Also, multiple second holding portions can be provided in the holding portion. The wire harness can be arranged to bypass the second area at the multiple second holding portions.

The mounting portion may be formed in the vehicle body, or may be composed of a separate member attached to the vehicle body. The method of attaching the retaining portion to the mounting portion can be selected as appropriate, and in addition to the above-mentioned connectors, various methods such as bolt fastening and welding can be used. The retaining portion does not necessarily have to have a reinforced portion. When the first exterior material is attached first, the retaining portion can be provided on the back side of the first exterior material. Then, by attaching the second exterior material with a part of the wire harness held by the retaining portion, it is possible to prevent a part of the wire harness from being pinched between the second exterior material and the vehicle body.

In this embodiment, the rear bumper filler and the rear lamp are exemplified as the exterior material, and the rear lamp and the back door are exemplified as the electrical component, but the configuration of the exterior material and the electrical component is not limited. As this type of exterior material, an exterior material attached to an appropriate position of the vehicle (front, rear, right side, left side, etc.) can be assumed, and the shape and dimensions of the exterior material are also set appropriately. The first area and the second area can be set adjacent to each other in the vertical direction, the longitudinal direction, or the width direction of the vehicle depending on the configuration of the exterior material, and the peripheral area can also be set at an appropriate position around the second area. In addition to lamps and doors, various movable members such as sensors, wipers, and door mirrors can be exemplified as electrical components. At least one of the above-mentioned electrical components is provided in the second area or the peripheral area, and at least one of the wire harnesses for the electrical component is arranged to pass through the first area. When the electrical component is attached to the side of the vehicle, the electrical component and the holding part may be arranged in the same plane in a plan view of the vehicle from the vehicle width direction, or may be separated into different planes.

2 Vehicle 3 Vehicle body 4 Door opening 5 Back door (another electrical component of the present invention)
6 Rear bumper cover 7 Switch portion 8 Side member 80 (of side member) Rear end portion 81 Engaged portion 9 Roof portion 10 Rear bumper filler (first exterior material of the present invention)
11 Right end portion (of rear bumper filler) 12 Engagement portion 13 Left end portion (of rear bumper filler) 20 Rear lamp (second exterior material of the present invention, electrical component)
31 First region 310 Right side portion 311 (of vehicle body of first region) Through hole 32 Second region 33 Peripheral region 40 Mounting portion 41 Insertion portion 42 Connector 50 Retaining portion 500 Reinforcement portion 501 Right edge portion 502 (of reinforcement portion) Left edge portion 51a (of reinforcement portion) Upper first retaining portion 51b Lower first retaining portion 52 Second retaining portion 60 Wire harness 70 for back door Wire harness 71 for rear lamp Lamp side wire harness 72 Vehicle side wire harness 710 Connection portion 720 (of lamp side wire harness) Connection portion X (of vehicle side wire harness) Parting line 10A Rear bumper filler 11a (of modified example) Right end portion 40a (of rear bumper filler of modified example) Mounting portion 80a (of modified example) Rear end portion (of side member of modified example)

Claims (4)

A vehicle wire harness arrangement structure in which a plurality of exterior materials forming an outer surface of a vehicle body are attached to the vehicle body , and a vehicle wire harness is arranged along the outer surface side of the vehicle body facing the exterior materials ,
A first region to which a first exterior material is attached and a second region to which a second exterior material is attached are set adjacent to each other on the outer surface side of the vehicle body,
an electrical component is provided in at least one of the second region and a peripheral region around the second region excluding the first region;
the wire harness and another wire harness are routed through the first area toward the electrical component, and a holding portion capable of holding a part of the wire harness and a part of the another wire harness is provided in the first area,
the holding portion has a reinforcing portion that reinforces a vehicle body portion to which the first exterior material is attached, a first holding portion capable of holding a connection portion of the wire harness, and a second holding portion capable of holding a part of the other wire harness excluding the connection portion in a hooked state,
The second retaining portion is formed in a claw shape protruding from an edge of the reinforcement portion in a direction approaching the second region, and a tip side of the second retaining portion is bent toward the vehicle body and in a direction away from the second region . The wire harness arrangement structure for a vehicle according to claim 1 , wherein the holding portion is attached to a mounting portion provided between the vehicle body and the first exterior material . 3. The vehicle wire harness arrangement structure according to claim 1, further comprising a lamp as the electrical component provided in the second exterior material, and another electrical component provided in the peripheral area . The vehicle wire harness arrangement structure according to any one of claims 1 to 3, wherein, in a plan view of the rear surface of the vehicle in the vehicle fore-and-aft direction , the electrical component and the retaining portion are provided on the vehicle body located in the same plane of the rear surface .

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