JP7279586B2 - rear body structure - Google Patents

Description

The present invention relates to a vehicle body rear structure.

A rear bumper is provided at the rear of the vehicle. For example, Patent Literature 1 discloses a vehicle rear bumper attachment structure in which a rear bumper is attached to a rear panel provided with an air outlet for releasing pressure inside the vehicle. In Patent Document 1, the rear panel has a bracket fixed below the air outlet, and the bumper face of the rear bumper is formed with a bulging portion that bulges toward the rear panel. The rear panel and rear bumper are fixed at the bracket and the bulging portion. A labyrinth packing is formed below the air outlet by the rib piece integrally formed on the bulging portion and the eaves plate formed on the bracket.

Japanese Unexamined Patent Application Publication No. 2010-30518

According to the vehicle rear bumper mounting structure of Patent Document 1, the labyrinth packing is formed by the rib piece and the eaves plate as described above. As a result, it is possible to enhance the effect of preventing water, rainwater, and the like that scatters while the vehicle is running from entering the passenger compartment through the air outlet. However, when the structure disclosed in Patent Document 1 is used, it is possible to obtain the effect of preventing water from entering from the front of the vehicle, but it is difficult to prevent water from entering from other directions. Therefore, the technique of Patent Document 1 has room for further improvement.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle body rear structure that can more preferably prevent water or the like from entering the rear bumper.

In order to solve the above-mentioned problems, a typical configuration of the vehicle body rear portion structure according to the present invention is a vehicle body rear portion including a rear panel arranged below a back door opening of a vehicle and a rear bumper attached to the outside of the rear panel. In terms of structure, the back door opening has a curved portion that curves upward toward the outside in the vehicle width direction at the end of the lower edge of the back door opening. and a longitudinal projecting portion in the vehicle width direction projecting from the rear panel toward the rear panel, and the end portion of the projecting portion on the outside in the vehicle width direction overlaps the curved portion of the back door opening in the vehicle width direction. and

According to the present invention, it is possible to provide a vehicle body rear structure that can more preferably prevent water or the like from entering the rear bumper.

It is the figure which observed the vehicle body rear part structure concerning a present Example from the vehicle body rear. FIG. 2 is a view showing the rear panel with the rear bumper of FIG. 1 removed; It is the figure which observed the rear bumper of FIG. 1 from the vehicle front. 4 is an enlarged perspective view of the vicinity of the left end of the rear bumper of FIG. 3; FIG. FIG. 2 is a cross-sectional view of the rear bumper of FIG. 1 taken along line AA; FIG. 2 is a cross-sectional view of the rear bumper of FIG. 1 taken along the line BB. It is the figure which observed the tire vicinity of the left side of the vehicle body rear part structure of FIG. 1 from the vehicle front.

A vehicle body rear structure according to an embodiment of the present invention includes a rear panel disposed below a vehicle back door opening and a rear bumper attached to the outside of the rear panel. The rear bumper is composed of a main body extending over the entire width of the vehicle and a rear bumper projecting from the main body toward the rear panel. An overhanging portion extending in the width direction is provided, and an outer end portion of the overhanging portion in the vehicle width direction overlaps the curved portion of the back door opening in the vehicle width direction.

According to the above configuration, the outer end of the projecting portion in the vehicle width direction overlaps the curved portion of the back door opening in the vehicle width direction. etc. can be prevented from entering. Therefore, it is possible to more preferably prevent water or the like from entering the rear bumper not only from the front of the vehicle but also from above.

The body portion of the rear bumper preferably includes a lateral wall extending toward the rear of the vehicle from the rear end of the overhanging portion, and a vertical wall extending downward from the front end of the lateral wall. According to such a configuration, the presence of the lateral wall can shorten the length of the entire projecting portion in the vehicle front-rear direction. This makes it possible to improve the rigidity of the projecting portion. Also, by providing the lateral wall and the vertical wall, the rigidity of the rear bumper can be increased.

It is preferable that the rear panel has a ventilator mounting hole for mounting a ventilator, and the projecting portion overlaps the ventilator mounting hole in the vehicle width direction. As a result, it is possible to suitably prevent water or the like from entering the ventilator.

The rear bumper further has a garnish mounting hole formed in the main body to which the garnish is mounted, and the protruding portion is positioned below the garnish mounting hole and overlaps at least a portion of the garnish mounting hole in the vehicle width direction. It's good to be As a result, entry of water or the like through the garnish attachment hole can be prevented. Moreover, since the garnish mounting hole is protected by the projecting portion, it is possible to suitably prevent deterioration of the garnish mounting hole.

The projecting portion connects an upper portion arranged on the inner side in the vehicle width direction, a lower portion arranged on the outer side in the vehicle width direction at a position lower than the upper portion, and connecting the upper portion and the lower portion to extend outward in the vehicle width direction. and a connecting portion sloping downward as it goes. As a result, since the lower portion is arranged at a position close to the tire, it is possible to suitably prevent rain or the like that is picked up by the tire from entering the ventilator while the vehicle is running.

The rear panel preferably has an inclined portion that is positioned above the front end of the lateral wall and that inclines toward the rear of the vehicle as it goes upward of the vehicle. As a result, the inclined portion and the projecting portion form an air flow path that bends toward the rear of the vehicle as it goes upward. As a result, it is possible to enhance the effect of preventing rain or the like that has been picked up by the tires from entering the interior of the vehicle body via the ventilator.

It is preferable that the front end of the projecting portion be positioned on the rear side of the vehicle with respect to a straight line connecting the upper end and the lower end of the main body portion. As a result, even if the rear bumper is laid flat with the design surface of the main body facing upward when the rear bumper is transported, the overhanging portion does not impair the stability of the rear bumper when it is laid flat.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in these examples are merely examples for facilitating understanding of the invention, and do not limit the invention unless otherwise specified. In the present specification and drawings, elements having substantially the same functions and configurations are denoted by the same reference numerals to omit redundant description, and elements that are not directly related to the present invention are omitted from the drawings. do.

FIG. 1 is a view of a rear vehicle body structure 100 according to the present embodiment observed from the rear of the vehicle body. FIG. 2 shows the rear panel 130 with the rear bumper 110 of FIG. 1 removed. The vehicle body rear portion structure 100 of this embodiment includes a rear panel 130 of FIG. 2 arranged below the back door opening 102 of the vehicle, and a rear bumper 110 of FIG. . The back door opening 102 has curved portions 102a and 102b that curve upward toward the outside in the vehicle width direction at the ends of the lower edge thereof.

FIG. 3 is a view of the rear bumper 110 of FIG. 1 observed from the front of the vehicle. FIG. 4 is an enlarged perspective view of the vicinity of the left end of rear bumper 110 in FIG. FIG. 5 is a cross-sectional view taken along line AA of FIG. FIG. 6 is a cross-sectional view along BB in FIG. FIG. 7 is a view of the vicinity of the left tire of the vehicle body rear structure 100 of FIG. 1 as observed from the front of the vehicle.

As shown in FIG. 3, the rear bumper 110 has a body portion 112 extending over the entire vehicle width. As shown in FIGS. 4 , 5 and 6 , a projecting portion 120 extending in the vehicle width direction projects from the main body portion 112 toward the rear panel 130 . As shown in FIG. 7, the projecting portion extends to the vicinity of the wheelhouse panel 104 and the wheelhouse panel reinforcement 106 in the vehicle width direction.

As shown in FIG. 3, in the vehicle body rear portion structure 100 of the present embodiment, the end portion 120a on the vehicle width direction outer side of the overhang portion 120 of the rear bumper 110 is aligned with the curved portions 102a and 102b of the back door opening 102 in the vehicle width direction ( left-right direction). As a result, entry of water or the like through the gap between the upper end portion 130a of the rear panel 130 and the upper end portion 110a of the rear bumper 110 can be prevented. Therefore, it is possible to more preferably prevent water or the like from entering rear bumper 110 not only from the front of the vehicle but also from above.

Further, as shown in FIGS. 5 and 6 , in the vehicle body rear portion structure 100 of this embodiment, the body portion 112 of the rear bumper 110 further has a lateral wall 114 and a vertical wall 116 . The lateral wall 114 extends toward the rear of the vehicle from the rear end of the projecting portion 120 , and the vertical wall 116 extends downward from the front end of the lateral wall 114 .

Since the lateral wall 114 is provided between the projecting portion 120 and the main body portion 112 as in the above configuration, the length of the projecting portion 120 as a whole in the vehicle front-rear direction can be shortened. Therefore, the rigidity of the projecting portion 120 is improved. In addition, by providing the lateral wall 114 and the vertical wall 116, the rigidity of the rear bumper 110 can be increased.

Further, by providing the lateral wall 114, it is possible to suppress the resin from flowing into the overhanging portion 120, so that it is possible to effectively prevent the occurrence of sink marks or the like during molding. Therefore, it is possible to improve the appearance quality. Furthermore, since the starting point P of the projecting portion 120 is the boundary between the lateral wall 114 and the vertical wall 116, even if a sink mark or the like occurs, it will be difficult to see from the outside of the vehicle, thereby further improving the appearance quality. becomes.

In particular, in the vehicle body rear portion structure 100 of this embodiment, as shown in FIG. 4, the projecting portion 120 extends to a position overlapping the lateral wall 114 in the vehicle width direction. Thereby, the effect of reinforcing the projecting portion 120 by the lateral wall 114 can be obtained. Note that if the overhanging portion 120 does not extend over the entire width of the lateral wall 114 but extends from a position that overlaps at least a portion of the lateral wall 114, the above-described effects can be obtained.

Please refer to FIG. 5 again. As shown in FIG. 5, in the vehicle body rear portion structure 100 of this embodiment, the rear panel 130 is formed with a ventilator mounting hole 132 to which a ventilator 140 for ventilating the air in the passenger compartment is mounted. As shown in FIG. 3, the projecting portion 120 overlaps the ventilator mounting hole 132 in the vehicle width direction. As a result, it is possible to suitably prevent water, etc., which is stirred up during running, from entering the ventilator 140 .

Further, as shown in FIG. 6, the body portion 112 of the rear bumper 110 is formed with a garnish mounting hole 118 to which a garnish (not shown) is mounted. The projecting portion 120 is positioned below the garnish mounting hole 118 and overlaps the garnish mounting hole 118 in the vehicle width direction. As a result, entry of water or the like into the garnish attachment hole 118 can be prevented. In addition, since the garnish mounting hole 118 is protected by the projecting portion 120, deterioration of the garnish mounting hole 118 can be suitably prevented, and the appearance quality can be improved.

Further, as shown in FIGS. 3 and 4 , in the vehicle body rear portion structure 100 of this embodiment, the projecting portion 120 includes an upper portion 122 , a lower portion 124 and a connecting portion 126 . The upper portion 122 is arranged on the inner side in the vehicle width direction, and the lower portion 124 is arranged on the outer side in the vehicle width direction at a position lower than the upper portion 122 . These upper portion 122 and lower portion 124 are connected by a connecting portion 126 that slopes downward toward the outside in the vehicle width direction.

According to the above configuration, the lower portion 124 on the outer side in the vehicle width direction is arranged at a position closer to the tire 150 (see FIG. 1) than the upper portion 122 in the height direction. As a result, it is possible to enhance the effect of suitably preventing rain or the like that is picked up by the tires 150 from entering the ventilator 140 while the vehicle is running.

Please refer to FIG. 5 again. As shown in FIG. 5, the rear panel 130 has an inclined portion 134 located above the front end of the lateral wall 114 (starting point P of the projecting portion 120) and inclined rearward of the vehicle as it goes upward. Thus, the inclined portion 134 and the protruding portion 120 form the air flow path F so as to bend toward the rear of the vehicle as it goes upward. As a result, it is possible to obtain the effect of preventing rain or the like picked up by the tires 150 from entering the inside of the vehicle body via the ventilator 140 .

Further, as shown in FIG. 5 , the front end 120 a of the projecting portion 120 is located on the vehicle rear side of the straight line L connecting the upper end and the lower end of the main body portion 112 . As a result, even when the rear bumper 110 is transported and laid flat with the design surface of the main body 112 facing upward, the overhang 120 does not impair the stability of the rear bumper 110 when it is laid flat.

Further, in this embodiment, as shown in FIG. 4, the sonar mounting hole 119 formed in the rear bumper 110 is also arranged at a position overlapping the projecting portion 120 in the vehicle width direction. As a result, it is possible to suitably prevent rain or the like from entering the sonar mounting hole 119 . Also, as shown in FIG. 6 , when a blind spot monitor radar sensor 160 is attached to the rear panel 130 , the radar sensor 160 is preferably arranged above the rear panel 130 . As a result, rain caught up by the tire 150 can be prevented from reaching the radar sensor 160, and deterioration of the device can be prevented.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It is obvious that a person skilled in the art can conceive of various modifications or modifications within the scope described in the claims, and these also belong to the technical scope of the present invention. Understood.

INDUSTRIAL APPLICABILITY The present invention can be used for a vehicle body rear portion structure.

DESCRIPTION OF SYMBOLS 100... Vehicle body rear part structure 102... Back door opening 102a... Bending part 102b... Bending part 110... Rear bumper 110a... Upper end part 112... Main body part 114... Lateral wall 116... Vertical wall 118... Garnish attachment Holes 119 Sonar mounting hole 120 Overhang 120a End 122 Upper part 124 Lower part 126 Connecting part 130 Rear panel 130a Upper end 132 Ventilator mounting hole 134 Inclined portion 140 Ventilator 150 Tire 160 Radar sensor

Claims (7)

A vehicle body rear structure including a rear panel arranged below a back door opening of a vehicle and a rear bumper attached to the outside of the rear panel,
The back door opening has a curved portion that curves upward as the end portion of the lower edge thereof extends outward in the vehicle width direction,
The rear bumper is
a main body extending over the entire width of the vehicle;
a longitudinal overhanging portion in the vehicle width direction that overhangs from the main body portion toward the rear panel;
The vehicle rear portion structure, wherein a vehicle width direction outer end portion of the projecting portion overlaps a curved portion of the back door opening in the vehicle width direction. The body portion of the rear bumper includes:
a lateral wall extending toward the rear of the vehicle from the rear end of the projecting portion;
2. The vehicle body rear structure according to claim 1, further comprising a vertical wall extending downward from the front end of said horizontal wall. The rear panel has a ventilator mounting hole to which a ventilator is mounted,
3. The vehicle body rear portion structure according to claim 1, wherein the projecting portion overlaps the ventilator mounting hole in the vehicle width direction. The rear bumper further has a garnish mounting hole formed in the main body portion to which a garnish is mounted,
4. The overhanging portion according to any one of claims 1 to 3, wherein the projecting portion is positioned below the garnish mounting hole and overlaps at least a portion of the garnish mounting hole in the vehicle width direction. Rear body structure. The projecting portion is
an upper portion arranged on the inner side in the vehicle width direction;
a lower portion arranged at a position lower than the upper portion on the outer side in the vehicle width direction;
5. The vehicle body rear portion structure according to claim 1, further comprising a connecting portion connecting the upper portion and the lower portion and sloping downward toward the outside in the vehicle width direction. 3. The vehicle body rear portion structure according to claim 2, wherein the rear panel has an inclined portion positioned above the front end of the lateral wall and inclined rearward of the vehicle toward the upper side of the vehicle. The vehicle body rear structure according to any one of claims 1 to 6, wherein the front end of the projecting portion is located on the vehicle rear side of a straight line connecting the upper end and the lower end of the main body portion.

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