Vehicle rear structure
Rerouting the washer hose along the intermediate pillar with a joint and hose clips addresses the complexity of managing multiple hose types due to charging units, ensuring interference-free and efficient hose management.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2023-08-09
- Publication Date
- 2026-03-10
AI Technical Summary
Conventional washer hoses in vehicles require different routing paths based on the presence of a charging unit, leading to increased part management complexity and potential interference with other vehicle components.
The washer hose is routed along the intermediate pillar, using a joint and hose clips to prevent flapping and interference, ensuring a consistent path regardless of the charging unit's presence.
This configuration prevents washer hose interference and blockage, reducing manufacturing complexity by allowing the use of a single hose type and attachment member across different vehicle configurations.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present specification discloses a rear structure for a vehicle. [Background technology]
[0002] A rear washer is a device that sprays washer fluid onto the back door glass of a vehicle. A washer hose is connected to the rear washer, and the washer fluid is supplied to the rear washer via the washer hose.
[0003] Conventionally, this washer hose has been routed along the rear pillar, which is a pillar located at the boundary between the rear and side of the vehicle. Conventionally, the rear hose extends from the washer hose to the rear pillar, then extends along the rear pillar downward toward the vehicle, and then further extends toward the front of the vehicle.
[0004] Some vehicles have a charging unit located near the rear wheels. For example, electric vehicles (hereinafter abbreviated as "BEV") and plug-in hybrid electric vehicles (hereinafter abbreviated as "PHEV") are equipped with a charging unit to receive external power supply. Such a charging unit is located between the rear pillar and the middle pillar located forward of the rear pillar. On the other hand, gasoline engine vehicles and hybrid electric vehicles (hereinafter abbreviated as "HEV") are not equipped with a charging unit. [Prior art documents] [Patent documents]
[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-123064 Summary of the Invention [Problem to be solved by the invention]
[0006] As described above, conventional washer hoses extend downward along the rear pillar and then toward the front of the vehicle. In such cases, if a charging unit is installed in the vehicle, the washer hose's route must be changed so that it does not interfere with the charging unit. As a result, the washer hose route differs depending on whether or not a charging unit is installed, and therefore the type of washer hose used for routing differs depending on whether or not a charging unit is installed. As a result, the number of parts that must be managed at the manufacturing site increases, resulting in cumbersome operations.
[0007] Therefore, it is considered to route the washer hose along the middle pillar instead of the rear end pillar. However, parts such as trim clips for attaching the trim to the vehicle body and curtain shield airbags are located around the middle pillar. Therefore, if the washer hose is simply routed along the middle pillar, there is a risk that the washer hose will interfere with parts such as the trim clips or become blocked.
[0008] Patent Document 1 discloses passing a drain hose through a C-pillar. However, Patent Document 1 does not consider preventing interference with the above-mentioned parts.
[0009] Therefore, this specification discloses a vehicle rear structure that allows for more appropriate routing of washer hoses. [Means for solving the problem]
[0010] The vehicle rear structure disclosed in this specification comprises a rear-end pillar located at the boundary between the side and rear of the vehicle, an intermediate pillar located forward of the rear-end pillar across the quarter glass, a washer hose that guides washer fluid to a rear washer, the washer hose extending from the rear washer to the top of the intermediate pillar, then bending downward toward the vehicle and extending downward along the intermediate pillar, and one or more hose clips that are fastened to the intermediate pillar and hold the washer hose, each of the one or more hose clips including a fastening portion that is fastened to the intermediate pillar, a connecting portion that extends toward the rear of the vehicle from the fastening portion, and a holding portion that holds the washer hose at an end of the connecting portion, the washer hose being divided into an upstream hose and a downstream hose before and after the bend, and the upstream hose and the downstream hose being connected by a substantially L-shaped joint.
[0011] By providing a joint at the bent portion of the washer hose, flapping of the washer hose around the bent portion is effectively prevented. This effectively prevents interference between the washer hose and other components, and ultimately prevents blockage of the washer hose and the generation of abnormal noise. Furthermore, because the holding portion of the hose clip is located rearward of the vehicle from the fastening portion, interference between the washer hose and the trim clip is effectively prevented even when the hose clip is fastened near the trim clip. This effectively prevents blockage of the washer hose. As a result, the above-mentioned configuration allows the washer hose to be routed more appropriately.
[0012] In this case, one or more trim clips are attached to the intermediate pillar, and the one or more hose clips include a first hose clip and a second hose clip that is located lower on the vehicle than the first hose clip, and a straight line connecting the holding portion of the first hose clip and the holding portion of the second hose clip may be offset toward the rear of the vehicle than the one or more trim clips.
[0013] With this configuration, interference between the washer hose and the trim clip, and ultimately blockage of the washer hose, can be effectively prevented.
[0014] In this case, the one or more trim clips may include a first trim clip and a second trim clip located lower on the vehicle than the first trim clip, and the first hose clip may be positioned closer to the first trim clip than the second hose clip, and the second hose clip may be positioned closer to the second trim clip than the first hose clip.
[0015] With this configuration, the washer hose is restrained near the trim clip, which prevents the washer hose from flapping around near the trim clip. As a result, interference between the washer hose and the trim clip, and ultimately blockage of the washer hose, are effectively prevented.
[0016] Furthermore, the rear end of the connecting portion of the first hose clip may be bent in a direction approaching the first trim clip, and the rear end of the connecting portion of the second hose clip may be bent in a direction approaching the second trim clip.
[0017] This configuration restrains the washer hose closer to the trim clip, preventing it from flapping around near the trim clip. As a result, interference between the washer hose and the trim clip, and ultimately blockage of the washer hose, are effectively prevented.
[0018] Furthermore, the vehicle may further include a curtain shield airbag that passes through the upper part of the intermediate pillar and extends in the fore-and-aft direction of the vehicle, the upper corner of the quarter glass is an acute angle, the washer hose is positioned on the vehicle lower side of the curtain shield airbag, and the washer hose may be bent at an acute angle or approximately 90 degrees so as to follow the upper corner of the quarter glass.
[0019] With this configuration, interference between the washer hose and other components (such as a curtain shield airbag) can be more effectively prevented. [Effects of the Invention]
[0020] According to the vehicle rear structure disclosed in this specification, the washer hose can be routed more appropriately. [Brief explanation of the drawings]
[0021] [Figure 1] FIG. [Figure 2] This is a view of the C-pillar area from the passenger compartment side. [Figure 3] FIG. 2 is a schematic diagram of the rear of a vehicle of a comparative example. DETAILED DESCRIPTION OF THE INVENTION
[0022] The vehicle rear structure will be described below with reference to the drawings. Fig. 1 is a side view of the vehicle rear. Fig. 2 is a view of the area around the C-pillar 22 as seen from the passenger compartment. In each drawing, Fr, Up, and Out indicate the front, top, and outer sides of the vehicle 10 in the vehicle width direction, respectively. Also, a resin panel called a trim is usually attached to the inside surface of the vehicle 10, but the trim is not shown in Fig. 2.
[0023] As shown in FIG. 1 , the vehicle 10 has a C-pillar 22 and a D-pillar 20. The D-pillar 20 is a frame member that extends in the vertical direction of the vehicle at the boundary between the rear and side of the vehicle 10. The D-pillar 20 corresponds to the "rear-end pillar." The C-pillar 22 is a pillar that is located further forward of the vehicle than the D-pillar 20, with the quarter glass 16 in between. The C-pillar 22 corresponds to the "middle pillar." The rear door 14 is located in front of the C-pillar 22. Therefore, it can be said that the C-pillar 22 is sandwiched between the quarter glass 16 and the rear door 14.
[0024] A curtain shield airbag 52 is installed inside the vehicle near the roof. The curtain shield airbag 52 is an airbag that protects the occupants by spreading out like a curtain to cover the side window glass 15 when an impact occurs. Before use, the curtain shield airbag 52 is folded into a roughly rod-like shape and attached to the roof line, which is the boundary line between the side of the vehicle and the roof.
[0025] A rear fender panel 30 is disposed below the C pillar 22 and the D pillar 20. A tire arch is formed below the rear fender panel 30, and a rear tire 32 is disposed within the tire arch.
[0026] In the case of a vehicle 10 that requires external charging, such as a BEV or PHEV, the charging unit 36 is disposed on the inner side of the rear fender panel 30 in the vehicle width direction. On the other hand, in the case of a vehicle 10 that does not require external charging, such as a gasoline engine vehicle or an HEV that does not allow external charging, the charging unit 36 is not installed in the vehicle 10.
[0027] A tailgate glass 12 is disposed at the rear of the vehicle 10. A rear washer 40 that sprays washer fluid onto the tailgate glass 12 is disposed above the tailgate glass 12. Note that while the rear washer 40 is shown in FIG. 1 as being separated from the rear of the vehicle 10, the rear washer 40 is actually attached to the rear of the vehicle 10. Also, for ease of viewing, the size ratio of the rear washer 40 to the vehicle 10 is shown in FIG. 1 as being larger than it actually is.
[0028] A washer hose 42 is connected to the rear washer 40. Although the washer hose 42 is shown by a thick solid line in Fig. 1, the actual washer hose 42 is routed in the gap between the body and the trim, i.e., in a location that cannot be seen from the outside.
[0029] The washer hose 42 connects a washer fluid tank (not shown) disposed at the front of the vehicle to the rear washer 40. The washer fluid is supplied to the rear washer 40 through the washer hose 42.
[0030] 1, in this example, the washer hose 42 extends from the rear washer 40 to the upper part of the C-pillar 22, then bends downwardly of the vehicle, and extends downwardly along the C-pillar 22. Furthermore, the washer hose 42 extends from the C-pillar 22 to near the lower end of the rear fender panel 30, then bends forwardly of the vehicle, and extends forwardly of the vehicle along the side sill 28.
[0031] The reason for routing the washer hose 42 along the C-pillar 22 in this manner will be explained in comparison with a technology of a comparative example. Fig. 3 is a schematic diagram of the rear of a vehicle 10* of the comparative example. As shown in Fig. 3, in the vehicle 10* of the comparative example, the washer hose 42* extends downward along the D-pillar 20, not the C-pillar 22. After reaching the rear fender panel 30, the washer hose 42 extends toward the front of the vehicle.
[0032] As described above, in the case of a vehicle that requires external charging, the charging unit 36 is disposed on the side of the rear fender panel 30. In this case, the washer hose 42* is routed along a path that avoids the charging unit 36 so as not to interfere with the charging unit 36, specifically, along the path shown by the thick solid line in FIG. 3 .
[0033] On the other hand, in the case of a vehicle 10 that does not require external charging, the charging unit 36 is not present near the rear fender panel 30. In this case, the washer hose 42* is routed along a path that shortens its length. Specifically, the washer hose 42 is routed along a path that diagonally crosses the rear fender panel 30, i.e., the path shown by the dashed line in FIG. 3 .
[0034] That is, in the structure of the comparative example, the routing path of the washer hose 42* differs depending on whether or not the charging unit 36 is present. As a result, the type of washer hose 42* and the type of attachment member used differ depending on whether or not the charging unit 36 is present. In this case, the manufacturing site of the vehicle 10* needs to prepare multiple types of washer hoses 42* and attachment members, which increases the burden of parts management at the manufacturing site.
[0035] On the other hand, in this example, as described above and shown in FIG. 1, the washer hose 42 is routed to the C-pillar 22, not the D-pillar 20. In this case, the path of the washer hose 42 does not change depending on whether or not the charging unit 36 is installed. Therefore, the same type of washer hose 42 and mounting member can be used regardless of whether or not the charging unit 36 is installed. As a result, this example reduces the burden of parts management at the manufacturing site.
[0036] However, around the C-pillar 22, there are trim clips 50 for attaching the trim to the body, a curtain shield airbag 52, and other components. If the washer hose 42 interferes with these components, the washer hose 42 may become blocked, preventing the washer fluid from flowing properly. Therefore, in this example, the washer hose 42 is attached to the body around the C-pillar 22 using a dedicated hose clip and joint. This will be described below with reference to FIG. 2.
[0037] As shown in Fig. 2, the C-pillar 22 is sandwiched between the quarter glass 16 and the door opening 17. The upper end of the C-pillar 22 connects to the roofline 26, which forms the boundary between the side surface and the roof of the vehicle 10. In Fig. 2, the black hatching indicates the vehicle body including the C-pillar 22. The dark black hatching indicates flange portions for joining the inner and outer panels that make up the vehicle body.
[0038] The curtain shield airbag 52 is attached to the interior surface of the body along the roofline 26. Trim clips 50f, 50s for attaching the trim to the body are attached to the C-pillar 22. In the following, when there is no need to distinguish between the two trim clips 50f, 50s, they will simply be referred to as "trim clips 50." The same applies to other components below.
[0039] The trim clip 50 stands upright, for example, from the rear surface (i.e., the non-design surface) of the trim. When attaching the trim to the body, the worker presses the trim toward the body from the front side of the paper in FIG. 2 so that the trim clip 50 is fitted with a nail into a fastening hole formed in the body. FIG. 2 does not show the trim, and only shows the head of the trim clip 50 fitted with a nail into the fastening hole. In this example, the first trim clip 50f is attached to the upper part of the C-pillar 22, and the second trim clip 50s is attached to the lower part of the C-pillar 22.
[0040] As described above, the washer hose 42 is routed so as to extend from the rear washer 40 along the roofline 26 to the top of the C-pillar 22 and then extend along the C-pillar 22 downward toward the vehicle. In this example, the upper corner of the quarter glass 16 is an acute angle, as shown in FIG. 2 . The washer hose 42 is bent at an acute angle or at approximately 90 degrees near the upper corner of the quarter glass 16 so as to follow the upper corner. If the shape of the washer hose 42 is not restrained at this bend, the washer hose 42 may flap and interfere with the curtain shield airbag 52, or the washer hose 42 may bend and become blocked.
[0041] Therefore, in this example, the washer hose 42 is divided into an upstream hose 44u and a downstream hose 44d before and after the bend. The upstream hose 44u is a hose that is arranged along the C-pillar 22, and the downstream hose 44d is a hose that is arranged along the roofline 26. The two hoses 44u, 44d are connected by a substantially L-shaped joint 46. The joint 46 is made of a hard resin or the like and is a pipe member with an L-shaped passage. By locating the joint 46 at the bend, flapping of the washer hose 42 around the bend is effectively prevented. Furthermore, this configuration effectively prevents clogging of the washer hose 42 at the bend.
[0042] The upstream hose 44u is attached to the interior surface of the C-pillar 22 using a plurality of hose clips 60f, 60s. The washer hose 42 is attached to the body before the trim is attached to the body. Therefore, if a portion of the washer hose 42 is located near the fastening hole of the trim, the washer hose 42 may be pressed and blocked by the trim clip 50. On the other hand, due to the width of the C-pillar 22, the fastening position of the hose clip 60 cannot be far away from the fastening position of the trim clip 50 in the fore-and-aft direction of the vehicle. For this reason, in this example, the shape of the hose clip 60 that attaches the washer hose 42 to the C-pillar 22 is devised.
[0043] Specifically, the hose clip 60 has a fastening portion 62, a connecting portion 64, and a retaining portion 66. The fastening portion 62 includes a protrusion that is hook-fitted into a fastening hole formed in the C-pillar 22, and is the portion that is fastened to the C-pillar 22. The fastening portion 62 of the first hose clip 60f is located immediately below the first trim clip 50f and is fastened at a position closer to the first trim clip 50f than the second hose clip 60s. The fastening portion 62 of the second hose clip 60s is located immediately above the second trim clip 50s and is fastened at a position closer to the second trim clip 50s than the first hose clip 60f. The fastening portions of the two trim clips 50 and the fastening portions 62 of the two hose clips 60 are aligned in a substantially straight line.
[0044] The connecting portion 64 is a portion that connects the fastening portion 62 and the holding portion 66. The connecting portion 64 extends toward the rear of the vehicle from the fastening portion 62. The end of the connecting portion 64 is bent in the vertical direction of the vehicle, in other words, in the direction toward the nearest trim clip 50.
[0045] The retaining portion 66 is a portion that retains the washer hose 42. The retaining portion 66 is, for example, a tube through which the washer hose 42 is inserted, or a clip that clamps the washer hose 42. Here, as described above, the connecting portion 64 extends from the fastening portion 62 toward the rear of the vehicle, and therefore the retaining portion 66 is offset toward the rear of the vehicle relative to the fastening portion 62. As a result, the straight line L2 connecting the two retaining portions 66 is offset toward the rear of the vehicle relative to the straight line L1 connecting the two trim clips 50. This effectively prevents interference between the washer hose 42 and the trim clip 50, and ultimately prevents blockage of the washer hose 42.
[0046] If the holding portion 66 of the hose clip 60 is far away from the trim clip 50, the portion of the washer hose 42 that is not restrained by the holding portion 66 may flap and interfere with the trim clip 50. For this reason, it is necessary that the holding portion 66 does not move far away from the trim clip 50. Therefore, in this example, the hose clip 60 is fastened near the trim clip 50, and further, the end of the connecting portion 64 is bent so as to approach the nearest trim clip 50. This effectively prevents the washer hose 42 from flapping near the trim clip 50, and ultimately prevents the washer hose 42 from being blocked by the trim clip 50.
[0047] The configurations described above are all examples, and may be modified as appropriate as long as they have the configuration described in claim 1. For example, the number and shape of the hose clips 60 may be modified as appropriate. [Explanation of symbols]
[0048] 10,10* vehicle, 12 back door glass, 14 rear door, 15 side window glass, 16 quarter glass, 17 door opening, 20 D pillar, 22 C pillar, 26 roof line, 28 side sill, 30 rear fender panel, 32 rear tire, 36 charging unit, 40 rear washer, 42,42* washer hose, 44d downstream hose, 44u upstream hose, 46 joint, 50 trim clip, 52 curtain shield airbag, 60 hose clip, 62 fastening part, 64 connecting part, 66 retaining part.
Claims
1. a rear end pillar located at the boundary between the side and rear of the vehicle; an intermediate pillar located forward of the rear end pillar with a quarter glass interposed therebetween; a washer hose that guides washer fluid to a rear washer, the washer hose extending from the rear washer to an upper portion of the intermediate pillar, then bending downwardly of the vehicle, and extending downwardly along the intermediate pillar; one or more hose clips fastened to the intermediate pillar and holding the washer hose; Equipped with Each of the one or more hose clips includes a fastening portion fastened to the intermediate pillar, a connecting portion extending from the fastening portion toward the rear of the vehicle, and a holding portion at an end of the connecting portion that holds the washer hose, The washer hose is divided into an upstream hose and a downstream hose before and after the bent portion, The upstream hose and the downstream hose are connected by a substantially L-shaped joint. A vehicle rear structure characterized by:
2. 2. The vehicle rear structure according to claim 1, one or more trim clips attached to the middle pillar; the one or more hose clips include a first hose clip and a second hose clip located below the first hose clip, a straight line connecting the holding portion of the first hose clip and the holding portion of the second hose clip is offset toward the rear of the vehicle relative to the one or more trim clips; A vehicle rear structure characterized by:
3. 3. The vehicle rear structure according to claim 2, the one or more trim clips include a first trim clip and a second trim clip located below the first trim clip, the first hose clip is disposed closer to the first trim clip than the second hose clip, The second hose clip is disposed at a position closer to the second trim clip than the first hose clip. A vehicle rear structure characterized by:
4. 4. The vehicle rear structure according to claim 3, a rear end of the connecting portion of the first hose clip bends in a direction approaching the first trim clip, a rear end of the connecting portion of the second hose clip bent in a direction approaching the second trim clip; A vehicle rear structure characterized by:
5. 5. A vehicle rear structure according to claim 1, Furthermore, a curtain shield airbag is provided that passes through the upper portion of the intermediate pillar and extends in the front-rear direction of the vehicle, The upper corner of the quarter glass is an acute angle, the washer hose is disposed on the vehicle underside of the curtain shield airbag, The washer hose is bent at an acute angle or at approximately 90 degrees so as to fit along the upper corner of the quarter glass. A vehicle rear structure characterized by:
Citation Information
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