JP2010018222A - Rear bumper mounting part structure for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rear bumper mounting part structure for a vehicle capable of ensuring a space of a wheel house outer and an enveloping surface without increasing cost. <P>SOLUTION: A fastening opening 28 for mounting a rear bumper to a mounting part 12B of a side outer panel 12 is provided, and a flange part 12D is provided at a rear side of the vehicle than the fastening opening 28. The wheel house outer 26 is arranged at an inner side of the vehicle of the side outer panel 12, and on the wheel house outer 26, a projection part 26C projected so as not to be interfered to a fastening unit mounted to the fastening opening 28 and a flange part 26D are provided at a rear side of the vehicle than the fastening opening 28. An inner side of the side outer panel 12 and an outer side of the wheel house outer 26 are adhered by a band-like adhesion part 34 provided with an avoidance adhesion part 34B arranged so as to surround the projection part 26C and a vehicle inner side transferring adhesion part 34C for adhering the flange part 12D and the flange part 26D. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle rear bumper mounting portion structure for mounting a rear bumper on a vehicle lower side of a side outer panel at a rear end portion of a vehicle.

  The following Patent Document 1 discloses a structure in which a side outer panel and a side inner panel constituting a wheel house portion are overlapped, and an adhesive is filled in the vicinity of the lower end edge of both to join the side outer panel and the side inner panel. ing. In this structure, a groove that opens to the side inner panel is formed at the bent corner between the lower edge of the side outer panel and the inward flange bent from the lower edge to the inside of the vehicle body. Is filled.

Patent Document 2 below discloses a structure in which a closing plate and an upper part of a wheel house outer are sealed and a rear bumper side is fastened to an upper edge flange of a rear fender joined to a lower part of the wheel house outer. In this structure, the seal material is in close contact across the end of the joint between the wheel house outer and the upper edge flange of the rear fender and the upper edge of the front end of the rear bumper side, and the gap between the two is closed and sealed. Like to do.
JP 2004-142705 A Japanese Patent Laid-Open No. 3-159835

  However, in the case of the above-mentioned Patent Document 1, at the portion where the rear bumper is attached, for example, a flange portion is extended to the vehicle lower side of the side outer panel and the side inner panel on the inner side in the vehicle width direction of the rear bumper, and an adhesive is provided between both flange portions. It is thought that it is filled and combined. When such a flange portion is provided, it is difficult to secure a gap between the lower end portion of the flange portion and a so-called envelope surface that the tire is closest to when the suspension is compressed. For this reason, design restrictions are imposed on the mounting of the rear bumper, and a retainer for mounting the rear bumper may be required, which increases costs.

  Further, according to Patent Document 2, it is necessary to provide a closing plate on the inner side of the vehicle on the rear bumper side, and to connect the flange portion of the closing plate to the flange portion of the rear fender and the hall house outer, so that the structure becomes complicated. As the cost increases.

  An object of the present invention is to obtain a vehicle rear bumper mounting portion structure that can secure a gap between an end portion of a wheel house outer and an envelope surface without increasing the cost in consideration of the above facts.

  The vehicle rear bumper mounting portion structure according to the first aspect of the present invention includes a side outer panel disposed on the vehicle width direction outer side of the vehicle side portion, and a wheel house outer disposed on the vehicle width direction inner side of the side outer panel of the vehicle rear portion. A rear bumper disposed along the vehicle width direction on the vehicle lower side of the side outer panel at the rear end of the vehicle, and fastened and fixed to at least one of the side outer panel and the wheel house outer by a fastener, and the side outer panel A flange portion extending from a vehicle rear side position to a vehicle lower side from a position where the rear bumper is fastened and fixed by the fastener, an inner edge portion of the side outer panel, and an outer edge portion of the wheel house outer. Adhering continuously so as not to interfere with the fastener, and the rear bumper with the fastener A belt-like adhesive portion that is arranged on the inner side in the vehicle width direction from the vehicle rear side of the position to be fastened and fixed and continuously adheres the inner edge portion of the flange portion and the outer edge portion of the wheel house outer. It is characterized by.

  According to a second aspect of the present invention, in the rear bumper mounting portion structure for a vehicle according to the first aspect, the rear bumper is fastened and fixed by the fastener to a side outer panel mounting portion formed substantially horizontally on the side outer panel, The wheel house outer includes a projecting portion that projects inward in the vehicle width direction so as not to interfere with the fastener, and the adhesive portion surrounds the vehicle upper side of the projecting portion from the vehicle front side of the projecting portion. A fastener avoidance bonding portion that bonds the inside of the side outer panel and the outside of the wheel house outer so as to be disposed on the side, and the side outer panel mounting portion and the wheel house outer on the vehicle rear side of the protruding portion. The outside is continuously bonded to the fastener avoidance bonding portion, and the inside of the flange portion and the outside of the wheel house outer are bonded. And the vehicle inner transfer adhesive portion that is characterized by having a.

  According to a third aspect of the present invention, in the rear bumper mounting portion structure for a vehicle according to the first aspect, the rear bumper is fastened and fixed to the wheel house outer mounting portion extending inward in the vehicle width direction from the wheel house outer by the fastener. The bonding portion includes a fastener avoidance bonding portion that bonds the inner side of the side outer panel and the outer side of the wheel house outer along substantially the vehicle longitudinal direction, and the rear bumper is fastened to the wheel house outer mounting portion. The wheel house outer mounting portion and the outer side of the wheel house outer are continuously bonded to the fastener avoidance bonding portion on the vehicle rear side from the fixed position, and the inner side of the flange portion and the wheel house And a vehicle inner transfer bonding portion that bonds the outer side of the outer.

  According to a fourth aspect of the present invention, in the vehicle rear bumper mounting portion structure according to the second or third aspect, the side outer panel mounting portion or the wheel house outer mounting is provided at a position where the rear bumper is fastened and fixed by the fastener. An envelope surface is formed in a substantially oblique direction along the inner side in the vehicle width direction from the vehicle lower side of the vehicle inner end of the portion.

  The invention according to claim 5 is the vehicle rear bumper mounting part structure according to any one of claims 1 to 4, wherein an edge part of the side outer panel and an edge part of the wheel house outer or the wheel house outer are provided. It is characterized in that a sealing material for preventing water from entering is provided to seal the outer wall.

  According to the first aspect of the present invention, the wheel house outer is disposed on the inner side in the vehicle width direction of the side outer panel at the rear portion of the vehicle, and the rear bumper is disposed on the vehicle lower side of the side outer panel at the rear end portion of the vehicle. . The rear bumper is fastened and fixed to at least one of the side outer panel and the wheel house outer by a fastener, and the side outer panel has a flange portion from the position on the vehicle rear side to the vehicle lower side from the position where the rear bumper is fastened and fixed by the fastener. Is extended. The inner edge of the side outer panel and the outer edge of the wheel house outer are continuously bonded by a band-shaped bonding portion so as not to interfere with the fastener, and the rear bumper is fastened and fixed by the fastener. It arrange | positions from the vehicle rear side to the vehicle width direction inner side, and the inner side edge part of the flange part and the outer side edge part of a wheel house outer are adhere | attached continuously. In this configuration, the flange portion extends from the position on the vehicle rear side to the vehicle lower side from the position at which the rear bumper is fastened and fixed to the side outer panel by the fastener, so that the front of the vehicle from the position at which the rear bumper is fastened and fixed by the fastener. Compared to the case where the flange portion is provided on the side, it is easy to ensure a gap between the inner end portion of the wheel house outer and the lower end portion of the flange portion and the envelope surface. This is because the closer to the middle of the vehicle's wheel arch, the closer to the tire, so when a flange is provided on the front side of the vehicle from the position where the rear bumper is fastened and fixed, there is a gap between the lower end of the flange and the envelope surface. This is because it is difficult to secure. Therefore, there are few restrictions on the design of the mounting of the rear bumper, the degree of freedom of the design of the rear bumper is improved, and it is not necessary to provide a dedicated retainer for mounting the rear bumper, so that the cost can be reduced.

  According to the second aspect of the present invention, the rear bumper is fastened and fixed by the fastener to the side outer panel mounting portion formed substantially horizontally on the side outer panel so that the wheel house outer does not interfere with the fastener. A protrusion that protrudes inward in the vehicle width direction is provided. Then, the inner side of the side outer panel and the outer side of the wheel house outer so as not to interfere with the fasteners by the fastener avoiding adhesive portion arranged on the vehicle rear side surrounding the vehicle upper side of the protrusion from the vehicle front side of the protrusion. And are adhered. Further, the side outer panel mounting portion and the outer side of the wheel house outer are bonded to each other on the vehicle rear side of the protruding portion by the vehicle inner side changing adhesive portion continuous with the fastener avoiding adhesive portion, and the inner side of the flange portion and the wheel house The outer side of the outer is bonded. As described above, the inner side of the flange portion and the outer side of the wheel house outer are bonded to each other on the vehicle rear side by the vehicle inner transfer bonding portion on the vehicle rear side of the projecting portion, thereby the vehicle front side from the position where the rear bumper is fastened and fixed by the fastener. Compared with the case where the flange portion is provided in the inner space, the gap between the inner end portion of the wheel house outer and the lower end portion of the flange portion and the envelope surface can be more effectively ensured. Therefore, the degree of freedom of the design of the rear bumper is further improved, and it is not necessary to provide a dedicated retainer for attaching the rear bumper, and the cost can be reduced.

  According to the third aspect of the present invention, the rear bumper is fastened and fixed by the fastener to the wheel house outer mounting portion extending inward in the vehicle width direction from the wheel house outer. Then, the inner side of the side outer panel and the outer side of the wheel house outer are bonded to each other by the fastener avoiding adhesive portion so as not to interfere with the fastener in a substantially longitudinal direction of the vehicle. Further, by the vehicle inner transfer adhesion portion continuous with the fastener avoidance adhesion portion, the wheel house outer attachment portion and the outer side of the wheel house outer are located on the vehicle rear side from the position where the rear bumper is fastened and fixed to the wheel house outer attachment portion. And the inner side of the flange portion and the outer side of the wheel house outer are bonded. In this way, the inner side of the flange portion and the outer side of the wheel house outer are bonded to each other by the vehicle inner transfer bonding portion on the vehicle rear side from the position where the rear bumper is fastened and fixed to the wheel house outer mounting portion. The gap between the inner end of the wheel house outer and the lower end of the flange and the envelope surface can be more effectively ensured compared to the case where the flange is provided on the vehicle front side from the position where the rear bumper is fastened and fixed. . Therefore, the degree of freedom of the design of the rear bumper is further improved, and it is not necessary to provide a dedicated retainer for attaching the rear bumper, and the cost can be reduced.

  According to the fourth aspect of the present invention, at the position where the rear bumper is fastened and fixed by the fastener, from the vehicle lower side of the vehicle inner end portion of the side outer panel mounting portion or the wheel house outer mounting portion along the vehicle width direction inner side. Since the envelope surface is configured in a substantially oblique direction, a gap between the vehicle inner end portion of the side outer panel mounting portion or the wheel house outer mounting portion and the comprehensive surface can be more reliably ensured. Therefore, the degree of freedom of the design of the rear bumper is further improved, and a dedicated retainer for attaching the rear bumper is unnecessary, so that the cost can be reduced.

  According to the fifth aspect of the present invention, since the edge part of the side outer panel and the edge part of the wheel house outer or the outer wall of the wheel house outer are sealed with the sealing material for preventing water entry, the side outer panel and the wheel house outer are sealed. It is possible to prevent or suppress water from entering between.

  As described above, the vehicle rear bumper mounting portion structure according to the first aspect of the present invention can secure a gap between the inner end portion of the wheel house outer and the envelope surface without increasing the cost. Has an excellent effect.

  The vehicle rear bumper mounting portion structure according to the second aspect of the present invention is excellent in that the gap between the inner end portion of the wheel house outer and the lower end portion of the flange portion and the envelope surface can be more effectively secured. Have

  The vehicle rear bumper mounting portion structure according to the third aspect of the present invention has an excellent effect that the gap between the inner end portion of the wheel house outer and the lower end portion of the flange portion and the envelope surface can be more effectively secured. Have

  The rear bumper mounting portion structure for a vehicle according to the fourth aspect of the present invention has a gap between the vehicle inner end portion of the side outer panel mounting portion or the wheel house outer mounting portion and the inclusion surface at a position where the rear bumper is fastened and fixed by a fastener. It has the outstanding effect that it can ensure more reliably.

  The rear bumper mounting portion structure for a vehicle according to the present invention described in claim 5 is excellent in that water can be prevented or suppressed from entering between the side outer panel and the wheel house outer by the sealing material for preventing water from entering. It has the effect.

  [First Embodiment]

  Hereinafter, a first embodiment of a vehicle rear bumper mounting portion structure according to the present invention will be described with reference to FIGS. In these drawings, an arrow FR appropriately shown indicates the vehicle front side, an arrow UP indicates the vehicle upper side, and an arrow IN indicates the vehicle width direction inner side.

  FIG. 1 is a side view of a rear portion of a vehicle to which the vehicle rear bumper mounting portion structure according to the present embodiment is applied as viewed from the left side of the vehicle. As shown in this figure, at the rear part of the vehicle 10, a side outer panel (cycle outer) 12 is disposed on the outer side in the vehicle width direction along the vehicle front-rear direction. On the vehicle lower side of the side outer panel 12 at the rear end portion of the vehicle 10, a substantially “U” -shaped rear bumper 14 is disposed along the vehicle width direction in a vehicle plan view. A wheel house portion (wheel arch portion) 18 cut out in a semicircular shape to which a rear tire 16 is attached is disposed at a position straddling the side outer panel 12 and the rear bumper 14 at the side lower portion of the vehicle 10. In the lower part on the side of the vehicle 10, a parting portion 15 at the lower end portion of the side outer panel 12 and the upper end portion of the rear bumper 14 is arranged along the vehicle front-rear direction, and the front end portion of the parting portion 15 is located near the wheel house portion 18. It arrange | positions so that it may become a downward slope to the front side. The rear outer door 12 at the rear of the vehicle 10 is provided with a rear side door mounting opening, and the rear side door 20 is disposed in the rear side door mounting opening so as to be opened and closed. A rear combination lamp 22 is disposed on both sides of the rear end portion of the vehicle 10 on the vehicle upper side of the rear bumper 14.

  FIG. 2 shows a vehicle rear bumper mounting portion structure according to the present embodiment in a longitudinal sectional view taken along line AA of FIG. 3 shows a vehicle rear bumper mounting portion structure according to the present embodiment in a side view as seen from the inner side in the vehicle width direction, and FIG. 4 shows a vehicle rear bumper mounting portion according to the present embodiment. The structure is shown in the perspective view seen from the vehicle width direction inner side. In addition, in order to make the site | part of the vehicle 10 shown in figure easy to understand, the left side part of the vehicle 10 is shown in FIG.1 and FIG.2, and the right side part of the vehicle 10 is shown in FIG.3 and FIG.4.

  As shown in FIGS. 2 to 4, a wheel house outer 26 is disposed along the vehicle vertical direction on the inner side in the vehicle width direction of the side outer panel 12 at the rear portion of the vehicle 10. The side outer panel 12 includes a vertical wall portion 12A disposed along the vertical direction of the vehicle, a mounting portion 12B as a side outer panel mounting portion bent inward in the vehicle width direction at the lower end portion of the vertical wall portion 12A, and a vertical wall portion. And a bent portion 12C that is bent inward in the vehicle width direction. The attachment portion 12B is disposed substantially horizontally along the vehicle front-rear direction and the vehicle width direction, and a rectangular fastening opening 28 for fastening and fixing the rear bumper 14 at the middle portion of the attachment portion 12B in the vehicle front-rear direction. Is formed (see FIG. 4). Further, the side outer panel 12 has a flange portion 12D extending from the vehicle inner end portion of the mounting portion 12B to the vehicle lower side at a position on the vehicle rear side from the position where the fastening opening 28 is provided.

  The rear bumper 14 includes a vertical wall portion 14A disposed along the vehicle vertical direction, and a horizontal wall portion 14B that is bent inward in the vehicle width direction at the upper end portion of the vertical wall portion 14A. Then, in a state where the lateral wall portion 14B of the rear bumper 14 is disposed on the vehicle lower side of the mounting portion 12B of the side outer panel 12, the mounting portion from the lateral wall portion 14B side to the grommet 30 as a fastener disposed on the mounting portion 12B side. By tightening or locking a screw 32 as a fastener that passes through the fastening opening 28 of 12B, the lateral wall portion 14B of the rear bumper 14 is fastened and fixed to the mounting portion 12B of the side outer panel 12. In the mounted state of the rear bumper 14, the vertical wall portion 14A of the rear bumper 14 is disposed on a substantially extended line on the vehicle lower side of the vertical wall portion 12A of the side outer panel 12. In other words, the flange portion 12D of the side outer panel 12 is the vehicle rear side from the position where the rear bumper 14 is fastened and fixed by the grommet 30 and the screw 32, and the vehicle lower side from the vehicle inner end portion of the mounting portion 12B. It extends to.

  Moreover, when attaching the screw 32 to the grommet 30, it is necessary to set so that the screw 32 may be attached to the grommet 30 in the vertical direction in order to reduce the burden on the operator. When the screw 32 is attached to the grommet 30 in an oblique direction, the burden on the operator (load) increases. For this reason, it is desirable to arrange the attachment portion 12B and the lateral wall portion 14B substantially horizontally. In order to prevent deformation of the end portion of the rear bumper 14, it is preferably fastened and fixed to the mounting portion 12 </ b> B of the side outer panel 12 in the vicinity of the end portion of the rear bumper 14. For this reason, it is desirable that the rectangular fastening opening 28 for fastening and fixing the rear bumper 14 is provided in the vicinity of the vehicle outer end portion of the mounting portion 12B.

  The wheel house outer 26 includes a vertical wall portion 26A disposed along the vertical direction of the vehicle, a horizontal wall portion 26B bent inward in the vehicle width direction at the lower end portion of the vertical wall portion 26A, and a lower portion (vertical length of the vertical wall portion 26A. The wall portion 26A and the corner portion of the lateral wall portion 26B are provided with a protruding portion 26C that protrudes in a substantially L-shaped cross section inward in the vehicle width direction so as not to interfere with the grommet 30 and the screw 32. Further, the wheel house outer 26 is provided with a flange portion 26D extending from the vehicle inner end portion of the lateral wall portion 26B to the vehicle lower side at a position along the flange portion 12D on the vehicle rear side from the fastening opening 28 of the side outer panel 12. Has been. As shown in FIG. 5, the wheel house outer 26 is attached so as to be disposed on the vehicle upper side and the vehicle width direction inner side of the side outer panel 12. At that time, the vertical wall portion 12A of the side outer panel 12 and the vertical wall portion 26A of the wheel house outer 26 are arranged in a surface contact state, and the mounting portion 12B of the side outer panel 12 and the horizontal wall portion 26B of the wheel house outer 26 are arranged. Arranged in surface contact.

  Further, at the rear part of the vehicle 10, a belt-like adhesive portion 34 made of a structural adhesive that continuously adheres the inner edge portion of the side outer panel 12 and the outer edge portion of the wheel house outer 26 substantially along the vehicle longitudinal direction. Is provided (see FIG. 4). The bonding portion 34 bonds the vicinity of the edge portion of the vertical wall portion 12A of the side outer panel 12 and the edge portion of the vertical wall portion 26A of the wheel house outer 26 in an inclined direction, and the vertical wall portion 12A and the vertical wall portion 26A. A front-side adhesive portion 34A is provided at the lower end portion for adhering the lower edge portions of the two along the vehicle longitudinal direction. Further, the adhesive portion 34 surrounds the vehicle upper side of the protruding portion 26C from the vehicle front side of the lower portion of the protruding portion 26C at a position continuous on the vehicle rear side of the front-side adhesive portion 34A, and the vehicle rear of the lower portion of the protruding portion 26C An avoidance adhesion portion 34B is provided as a fastener avoidance adhesion portion for adhering the inside of the vertical wall portion 12A of the side outer panel 12 and the outside of the vertical wall portion 26A of the wheel house outer 26 so as to be disposed on the side. . Further, the adhesive portion 34 is located at a position continuous on the vehicle rear side of the avoidance adhesive portion 34B, on the vehicle rear side below the projecting portion 26C, and on the upper side of the mounting portion 12B of the side outer panel 12 and the lateral wall portion of the wheel house outer 26. Adhering the lower side of 26B substantially along the vehicle width direction, and adhering the inner edge of the flange portion 12D of the side outer panel 12 and the outer edge of the flange portion 26D of the wheel house outer 26 34C is provided.

  Further, at the side lower part of the vehicle 10, for preventing entry of water, the edge part on the inner side in the vehicle width direction of the mounting part 12 </ b> B of the side outer panel 12 and the outer wall (lower wall part) of the lateral wall part 26 </ b> B of the wheel house outer 26 are sealed. An edge sealer 36 is provided as a sealing material. The edge sealer 36 can prevent water from entering between the mounting portion 12B of the side outer panel 12 and the lateral wall portion 26B of the wheel house outer 26.

  Further, as shown in FIG. 2, a vehicle width from the vehicle lower side of the vehicle width direction inner edge portion of the mounting portion 12 </ b> B of the side outer panel 12 and the lateral wall portion 26 </ b> B of the wheel house outer 26 is formed on the lower side portion of the vehicle 10. A curved envelope surface 40 is formed in a substantially oblique direction along the inner side in the direction. The envelope surface 40 is a surface on which the rear tire 16 is closest to the vehicle body side member when a suspension (not shown) is compressed. Further, in the vehicle 10, the sheet metal is set so as not to be disposed between the envelope surface 40 and the curved surface 42 disposed at a predetermined interval (for example, 8 mm) from the envelope surface 40 to the vehicle upper side. .

  Next, the operation and effect of this embodiment will be described.

  In the mounting portion 12B of the side outer panel 12, a flange portion 12D extends from a position on the vehicle rear side to a vehicle lower side from a position where the rear bumper 14 is fastened and fixed by the grommet 30 and the screw 32. The avoidance adhesive portion 34B is disposed on the vehicle rear side from the vehicle front side of the protrusion portion 26C to the vehicle rear side so as to continue the inside of the side outer panel 12 and the outside of the wheel house outer 26. Are attached. Further, the vehicle inner transfer connecting portion 34C continues to the avoidance bonding portion 34B, and the mounting portion 12B of the side outer panel 12 and the lateral wall portion 26B of the wheel house outer 26 are continuous on the vehicle rear side below the protruding portion 26C. The flange portion 12D of the side outer panel 12 and the flange portion 26D of the wheel house outer 26 are continuously bonded. Thus, the track is set so that the avoidance bonding portion 34B and the vehicle inner transfer bonding portion 34C do not interfere with the grommet 30 and the screw 32.

  In such a configuration, compared to the case where the flange portion is provided on the vehicle front side from the position where the rear bumper 14 is fastened and fixed by the grommet 30 and the screw 32, the inner end portion and the flange portion of the lateral wall portion 26B of the wheel house outer 26 are provided. A gap between the lower end portion of 26D and the envelope surface 40 can be secured. This is because the closer the flange portion of the wheel house outer 26 is to the middle side of the wheel house portion 18, the closer to the rear tire 16, and it becomes difficult to secure a gap between the lower end portion of the flange portion and the envelope surface 40. For this reason, in this embodiment, there are few restrictions on the design at the time of attachment of the rear bumper 14, and the freedom degree of the design of the rear bumper 14 improves. Further, when the lateral wall portion 14B of the rear bumper 14 is fastened and fixed to the attachment portion 12B of the side outer panel 12, the screw 32 can be attached in the vertical direction, so that the burden on the operator can be reduced. Further, it is not necessary to provide a dedicated retainer for attaching the rear bumper 14, and the cost can be reduced.

  [Second Embodiment]

  Hereinafter, a second embodiment of the vehicle rear bumper mounting portion structure according to the present invention will be described with reference to FIGS. In addition, about the same component as 1st Embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  As shown in FIGS. 6 and 7, a wheel house outer 56 is disposed along the vehicle vertical direction on the inner side in the vehicle width direction of the side outer panel 52 at the rear portion of the vehicle 50. The side outer panel 52 includes a vertical wall portion 52A disposed along the vehicle vertical direction, and a horizontal wall portion 52B bent at the vehicle width direction inner side at the lower end portion of the vertical wall portion 52A. The wheel house outer 56 includes a vertical wall portion 56A arranged along the vehicle vertical direction, and a mounting portion 56B as a wheel house outer mounting portion bent inward in the vehicle width direction at the lower end portion of the vertical wall portion 56A. I have. The attachment portion 56B is formed longer than the length of the lateral wall portion 52B of the side outer panel 52 in the vehicle width direction. An extension portion 56C extending substantially horizontally in the vehicle width direction is formed in the attachment portion 56B of the wheel house outer 56, and a fastening opening 58 for attaching the rear bumper 54 to the extension portion 56C is formed. Is provided.

  Further, in the side outer panel 52, a flange portion 52C extends from the vehicle inner end portion of the lateral wall portion 52B to the vehicle lower side at a position on the vehicle rear side with respect to the position where the fastening opening 58 is provided. Further, on the vehicle rear side from the fastening opening 58 of the wheel house outer 56, a flange portion 56 </ b> D extends from the vehicle inner end portion of the attachment portion 56 </ b> B to the vehicle lower side at a position along the flange portion 52 </ b> C of the side outer panel 52. Yes. As shown in FIG. 8, the wheel house outer 56 is attached so as to be disposed on the vehicle upper side and the vehicle width direction inner side of the side outer panel 52.

  The rear bumper 54 includes a vertical wall portion 54A disposed along the vehicle vertical direction, and a horizontal wall portion 54B that is bent inward in the vehicle width direction at the upper end portion of the vertical wall portion 54A. The inner end portion of the attachment portion 56B of the wheel house outer 56 and the inner end portion of the lateral wall portion 54B of the rear bumper 54 are disposed at the same position. Then, in a state where the lateral wall portion 54B of the rear bumper 54 is disposed on the vehicle lower side of the attachment portion 56B of the wheel house outer 56, the attachment portion 56B is fastened from the lateral wall portion 54B side to the grommet 30 disposed on the attachment portion 56B side. When the screw 32 penetrating the opening 58 is locked or fastened, the lateral wall portion 54B of the rear bumper 54 is fastened and fixed to the mounting portion 56B of the wheel house outer 56.

  Further, at the rear part of the vehicle 50, a belt-like adhesive part 60 made of a structural adhesive that continuously adheres the inner edge of the side outer panel 52 and the outer edge of the wheel house outer 56 substantially along the vehicle longitudinal direction. Is provided (see FIG. 7). The bonding portion 60 includes a front bonding portion 60A that bonds the vicinity of the edge of the vertical wall portion 52A of the side outer panel 52 and the edge of the vertical wall portion 56A of the wheel house outer 56 in an oblique direction. Further, the bonding portion 60 is a position continuous on the vehicle rear side of the front bonding portion 60A, and the vehicle width from the position where the rear bumper 54 is fastened and fixed to the mounting portion 56B of the wheel house outer 56 by the grommet 30 and the screw 32. On the outside in the direction, there is provided an avoidance adhesion portion 60B as a fastener avoidance adhesion portion that adheres the lower end portion of the vertical wall portion 52A and the lower end portion of the vertical wall portion 56A substantially along the vehicle longitudinal direction. Further, the bonding portion 60 is a position that is continuous on the vehicle rear side of the avoidance bonding portion 60B, and is located on the vehicle rear side from the position where the rear bumper 54 is fastened and fixed to the mounting portion 56B of the wheel house outer 56 by the grommet 30 and the screw 32. The upper side of the lateral wall portion 52B and the lower side of the mounting portion 56B of the wheel house outer 56 are bonded substantially inward in the vehicle width direction, and the inner edge of the flange portion 52C of the side outer panel 52 and the wheel house outer 56 The vehicle inner transfer bonding portion 60C for bonding the outer edge portion of the flange portion 56D of the vehicle is provided.

  Further, at the lower part of the vehicle 50, a sealing material for preventing water entry that seals the inner edge of the side wall 52 </ b> B of the side outer panel 52 in the vehicle width direction and the outer wall (lower wall) of the mounting part 56 </ b> B of the wheel house outer 56. An edge sealer 62 is provided.

  Further, as shown in FIG. 6, at the rear part of the vehicle 50, the mounting portion 56 </ b> B of the wheel house outer 56 and the lateral wall portion 54 </ b> B of the rear bumper 54 are arranged on the inner side in the vehicle width direction from the vehicle lower side. An envelope surface 40 and the like are configured in a substantially oblique direction along the surface.

  Next, the operation and effect of this embodiment will be described.

  A flange portion 56D extends from the position on the vehicle rear side to the vehicle lower side from the position where the rear bumper 54 is fastened and fixed to the mounting portion 56B of the wheel house outer 56 by the grommet 30 and the screw 32. Further, the avoidance adhesive portion 60B is located on the inner side of the vertical wall portion 52A of the side outer panel 52 and the vertical wall portion 56A of the wheel house outer 56 outside the position in the vehicle width direction from the position where the rear bumper 54 is fastened and fixed by the grommet 30 and the screw 32. The outside is continuously bonded. Further, the vehicle inner transfer adhesive portion 60C is continuously connected to the avoidance adhesive portion 60B, the lateral wall portion 52B of the side outer panel 52 and the mounting portion 56B of the wheel house outer 56 on the vehicle rear side from the position where the rear bumper 54 is fastened and fixed. Are continuously bonded, and the flange portion 52C of the side outer panel 52 and the flange portion 56D of the wheel house outer 56 are continuously bonded. Thus, the track is set so that the avoidance adhesive portion 60B and the vehicle inner transfer adhesive portion 60C do not interfere with the grommet 30 and the screw 32.

  In such a configuration, the inner side of the extended portion 56 </ b> C of the wheel house outer 56 compared to the case where the flange portion of the wheel house outer is provided on the vehicle front side from the position where the rear bumper 54 is fastened and fixed by the grommet 30 and the screw 32. A gap between the end portion and the lower end portion of the flange portion 56 </ b> D and the envelope surface 40 can be secured. This is because the closer the flange portion of the wheel house outer portion is to the middle side of the wheel house portion 18, the closer to the rear tire 16, and it becomes difficult to secure a gap between the lower end portion of the flange portion and the envelope surface 40. For this reason, there are few restrictions on the design at the time of attachment of rear bumper 54, and the freedom degree of the design of rear bumper 54 improves. Further, when the lateral wall portion 54B of the rear bumper 54 is fastened and fixed to the attachment portion 56B of the wheel house outer 56, the screw 32 can be attached in the vertical direction, so that the burden on the operator can be reduced. Further, it is not necessary to provide a dedicated retainer for attaching the rear bumper 54, and the cost can be reduced.

  [Comparative Example]

  Next, a comparative example of the vehicle rear bumper mounting portion structure according to the present invention will be described with reference to FIGS. In addition, about the same component as 1st and 2nd embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  As shown in FIGS. 9, 11, and 12, a wheel house outer 106 is disposed along the vehicle vertical direction on the inner side in the vehicle width direction of the side outer panel 102 at the rear portion of the vehicle 100. The side outer panel 102 includes a flange portion 102A extending from the vehicle inner side end portion of the attachment portion 12B to the vehicle lower side of the fastening opening 28 provided in the attachment portion 12B, and a lower end portion of the flange portion 102A. And a lateral wall portion 102B bent inward in the vehicle width direction.

  The wheel house outer 106 includes a lateral wall portion 26B that is bent inward in the vehicle width direction at a lower end portion of the longitudinal wall portion 26A on the vehicle front side, a grommet 30 at the vehicle rear side of the lateral wall portion 26B and corners of the longitudinal wall portion 26A. A projecting portion 106A projecting inward in the vehicle width direction so as not to interfere with the screw 32. In the wheel house outer 106, a flange portion 106 </ b> B extends from the vehicle inner end portion of the lateral wall portion 26 </ b> B to the vehicle lower side at a position along the flange portion 102 </ b> A of the side outer panel 102. Further, the wheel house outer 106 is provided with a lateral wall portion 106C that is bent inward in the vehicle width direction from the lower end portion of the flange portion 106B. Further, the lateral wall portion 14B of the rear bumper 104 is fastened and fixed to the mounting portion 12B of the side outer panel 102 by the grommet 30 and the screw 32.

  Further, the vehicle 50 is provided with a belt-like adhesive portion 110 made of a structural adhesive that continuously adheres the inner edge portion of the side outer panel 102 and the outer edge portion of the wheel house outer 106. The bonding portion 110 includes a front bonding portion 110A that bonds the vicinity of the edge of the vertical wall portion 12A of the side outer panel 102 and the edge of the vertical wall portion 26A of the wheel house outer 106 in an oblique direction. Further, the adhesive portion 110 continues to the front side adhesive portion 110A continuously from the upper side of the mounting portion 12B of the side outer panel 102 and the lower side of the lateral wall portion 26B of the wheel house outer 106 along the substantially vehicle width direction. A vehicle inner transfer bonding portion 110B that bonds and continuously bonds the inner edge portion of the flange portion 102A of the side outer panel 102 and the outer edge portion of the flange portion 106B of the wheel house outer 106 is provided. An edge sealer 112 is provided on the edge portion of the lateral wall portion 102B of the side outer panel 102 and the lateral wall portion 106C of the wheel house outer 106.

  In such a structure in the vicinity of the mounting portion of the rear bumper 104, the flange portion 102A for providing the adhesive portion 110 is formed on the vehicle front side of the fastening opening 28 of the side outer panel 102, and the inside of the flange portion 102A and the wheel house are formed. The outer side of the flange portion 106B of the outer 106 is bonded to the vehicle inner transfer bonding portion 110B. That is, the adhesive part 110 is transferred to the vehicle width direction inner side in the vehicle front side from the fastening position of the grommet 30 and the screw 32.

  In such a structure in the vicinity of the mounting portion of the rear bumper 104, as shown in FIGS. 11 and 12, in order to provide the parting portion 120 disposed substantially horizontally in the vehicle front-rear direction, the flange portion 102A of the side outer panel 102 is provided. And the envelope surface 122A (see FIG. 9) are difficult to remove. Therefore, the parting part 120 is not established, and it is necessary to provide the parting part 130 that has a downward slope on the front side of the vehicle in order to secure a gap between the flange part 102A of the side outer panel 102 and the envelope surface 122B (see FIG. 9). is there. For this reason, the design restriction of the rear bumper 104 is increased, and the burden on the operator when fastening with the grommet 30 and the screw 32 is increased. In addition, a dedicated retainer for attaching the rear bumper 104 may be required to reduce the burden on the worker, leading to an increase in cost.

  On the other hand, in 1st Embodiment and 2nd Embodiment, the adhesion parts 34 and 60 are transferred to the vehicle width direction inner side in the vehicle rear side rather than the fastening position of the grommet 30 and the screw 32, and the wheel house outer 26, A clearance between the vehicle inner end portion 56 and the envelope surface 40 can be secured. For this reason, there are few restrictions on the design at the time of attachment of rear bumper 14. In addition, when the grommet 30 and the screw 32 are fastened and fixed, the burden on the operator can be reduced.

  [Supplementary explanation of the first and second embodiments]

  The belt-like bonding portion that continuously bonds the inner side of the side outer panel and the outer side of the wheel house outer is not limited to the track described in the first and second embodiments, and may have other configurations. That is, the gap between the vehicle inner end of the wheel house outers 26 and 56 and the envelope surface 40 is secured if the configuration is such that the adhesive portion is transferred to the inner side in the vehicle width direction on the vehicle rear side from the fastening position of the grommet 30 and the screw 32. can do.

  In the said 1st and 2nd embodiment, although the rear bumper was fastened and fixed to the side outer panel or the wheel house outer with the grommet 30 and the screw 32, you may use not only this but another fastener.

1 is a side view showing a left rear portion of a vehicle to which a vehicle rear bumper mounting portion structure according to a first embodiment is applied. It is a longitudinal cross-sectional view which follows the AA line in FIG. 1 which shows the rear bumper attachment part structure for vehicles which concerns on 1st Embodiment. It is the block diagram which looked at the vehicle right side of the side outer panel and wheel house outer used with the vehicle rear bumper attachment part structure which concerns on 1st Embodiment from the vehicle width direction inner side. It is the principal part expansion perspective view which looked at the vehicle right side of the side outer panel and wheel house outer used with the vehicle rear bumper attachment part structure which concerns on 1st Embodiment from the vehicle width direction inner side. It is the disassembled perspective view which looked at the vehicle right side of the side outer panel and wheel house outer shown in FIG. 4 from the vehicle width direction inner side. It is a longitudinal cross-sectional view which shows the rear bumper attachment part structure for vehicles which concerns on 2nd Embodiment. It is the principal part expansion perspective view which looked at the vehicle right side of the side outer panel and wheel house outer used for the vehicle rear bumper attachment part structure which concerns on 2nd Embodiment from the vehicle width direction inner side. It is the disassembled perspective view which looked at the vehicle right side of the side outer panel and wheel house outer shown in FIG. 7 from the vehicle width direction inner side. It is a longitudinal cross-sectional view which shows the rear bumper attachment part structure for vehicles which concerns on a comparative example. It is the principal part expansion perspective view which looked at the vehicle right side of the side outer panel and wheel house outer used for the vehicle rear bumper attachment part structure which concerns on a comparative example from the vehicle width direction inner side. It is the disassembled perspective view which looked at the vehicle right side of the side outer panel and wheel house outer used for the vehicle rear bumper attachment part structure which concerns on a comparative example from the vehicle width direction inner side. It is a side view which shows the left side rear part of the vehicle to which the vehicle rear bumper attachment part structure which concerns on the comparative example was applied.

Explanation of symbols

10 vehicle 12 side outer panel 12B mounting part (side outer panel mounting part)
12D flange portion 14 rear bumper 26 wheel house outer 26C projecting portion 26D flange portion
28 Fastening opening (position where the rear bumper is fastened and fixed)
30 Grommet (fastener)
32 screw (fastener)
34 Adhesion part 34B Adhesion part for avoidance (adhesion part for fastener avoidance)
34C Adhesive part for transfer inside the vehicle 36 Edge sealer (sealing material for preventing water entry)
40 Enveloping surface 50 Vehicle 52 Side outer panel 52C Flange portion 54 Rear bumper 56 Wheel house outer 56B Mounting portion (wheel house outer mounting portion)
56D Flange portion 58 Opening for fastening (position where the rear bumper is fastened and fixed)
60 Adhesive part 60B Avoidance adhesive part (fastener avoidance adhesive part)
60C Adhesive part 62 for transferring inside the vehicle Edge sealer (sealing material for preventing water entry)

Claims (5)

A side outer panel disposed outside the vehicle side in the vehicle width direction;
A wheel house outer disposed inside the vehicle outer side of the side outer panel at the rear of the vehicle;
A rear bumper disposed along the vehicle width direction on the vehicle lower side of the side outer panel at the rear end of the vehicle, and fastened and fixed to at least one of the side outer panel and the wheel house outer by a fastener;
A flange portion provided on the side outer panel and extending from a position on the vehicle rear side to a vehicle lower side from a position at which the rear bumper is fastened and fixed by the fastener;
The inner edge of the side outer panel and the outer edge of the wheel house outer are continuously bonded so as not to interfere with the fastener, and from the vehicle rear side where the rear bumper is fastened and fixed by the fastener. A belt-like adhesive portion that is disposed on the inner side in the vehicle width direction and continuously adheres the inner edge portion of the flange portion and the outer edge portion of the wheel house outer;
A vehicle rear bumper mounting portion structure characterized by comprising: The rear bumper is fastened and fixed by the fastener to a side outer panel mounting portion formed substantially horizontally on the side outer panel,
The wheel house outer includes a protruding portion that protrudes inward in the vehicle width direction so as not to interfere with the fastener.
The adhesive portion is
A fastener avoidance bonding portion that bonds the inside of the side outer panel and the outside of the wheel house outer so as to be disposed on the vehicle rear side surrounding the vehicle upper side of the protrusion from the vehicle front side of the protrusion. ,
The side outer panel mounting portion and the outer side of the wheel house outer are continuously bonded to the fastener avoidance bonding portion on the vehicle rear side of the protruding portion, and the inner side of the flange portion and the outer side of the wheel house outer A vehicle inner transfer adhesive part that bonds
The vehicle rear bumper mounting portion structure according to claim 1, comprising: The rear bumper is fastened and fixed by the fastener to a wheel house outer mounting portion extending inward in the vehicle width direction from the wheel house outer,
The adhesive portion is
Fastener avoidance adhesion part for adhering the inner side of the side outer panel and the outer side of the wheel house outer substantially along the vehicle longitudinal direction;
On the vehicle rear side from the position where the rear bumper is fastened and fixed to the wheel house outer mounting portion, the wheel house outer mounting portion and the outer side of the wheel house outer are continuously bonded to the fastener avoidance bonding portion, And the vehicle inner transfer adhesive part for bonding the inner side of the flange part and the outer side of the wheel house outer,
The vehicle rear bumper mounting portion structure according to claim 1, comprising:   At the position where the rear bumper is fastened and fixed by the fastener, an envelope surface is formed in a substantially oblique direction along the vehicle width direction inner side from the vehicle lower side of the vehicle inner end portion of the side outer panel mounting portion or the wheel house outer mounting portion. The vehicle rear bumper mounting portion structure according to claim 2 or 3, wherein the vehicle rear bumper mounting portion structure is configured.   The water-proofing sealing material which seals the edge part of the said side outer panel, the edge part of the said wheel house outer, or the outer wall of the said wheel house outer is provided. The vehicle rear bumper mounting part structure according to any one of the preceding claims.

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