JP2009137338A - Mounting structure for vehicular bumper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure for a vehicular bumper enabling mounting of a bumper face to a wheel arch side end part of a retainer without forming a flange on the wheel arch of the bumper face at the border part of a vehicle body. <P>SOLUTION: The mounting structure for the vehicular bumper is provided with the bumper face 2 having a flange part 46 bent to an inner side on a joint surface with the vehicle body X and a terminal part formed with the wheel arch 43, and in the mounting structure, the terminal part of the bumper face 2 is mounted to the retainer 10 fixed to the vehicle body X so as to be extended along the terminal part. The mounting structure is provided with a bracket 7 mounted to a neighborhood to the terminal part and the flange part 46b of the joint surface with the vehicle body X. A first mounting seat 71 extended so as to be left from the wheel arch 43 is formed on the bracket 7, and the mounting seat 71 is mounted to the retainer 10. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  According to the present invention, the bumper face has a flange portion bent inward at a terminal portion that forms a mating surface with the vehicle body and a wheel arch, and the retainer is fixed to the vehicle body so as to extend along the terminal portion. The present invention relates to a mounting structure for a vehicle bumper attached to the vehicle.

  In a bumper mounting structure for a vehicle, as shown in Patent Document 1 below, a retainer as a bumper face fixing tool is mounted on a vehicle body (vertical wall of a vehicle body concave portion where the bumper is assembled), and a bumper face (flange portion) is mounted on the retainer. Some have fixed the bumper to the vehicle body by mounting. In this case, the bumper face can be accurately attached to the vehicle body.

  By the way, in the bumper face mentioned above, as shown in FIG. 12, the terminal part of the bending part 545 may comprise a part of wheel arch 543. FIG. FIG. 12 shows a bumper mounting structure at the rear of the vehicle. In the figure, arrow (F) indicates the front of the vehicle, arrow (R) indicates the rear of the vehicle, arrow (IN) indicates the vehicle interior, and arrow (OUT ) Indicates the outside of the vehicle.

  In this case, as disclosed in Patent Document 1 below, the flange portion 546 is also formed at a terminal portion that forms the wheel arch 543 and extends to a boundary portion between the rear fender 501 and the bumper face 502 of the vehicle. And the flange part 546 which forms this wheel arch 543 is directly fixed to the wheel arch side edge part of the retainer 510 in the said boundary part.

JP 2007-125977 A

  However, when such a configuration is employed, there is a problem that the upper flange portion 546 of the bumper face 502 interferes with the wheel W when the tip of the boundary portion is set near the top of the wheel arch 543.

  This is because the wheel W is generally supported by a well-known suspension device so as to be swingable up and down. When the wheel W is displaced upward as shown by a two-dot chain line in the figure, as shown in the figure. In addition, the wheel W may come into contact with the flange portion 546 in the vicinity of the top of the wheel arch 543.

  Therefore, when the front end of the boundary is set near the top of the wheel arch 543 as described above, the bumper face 502 is attached to the end of the retainer 510 on the side of the wheel arch 543 as disclosed in Patent Document 1 above. I couldn't.

  The present invention provides a vehicle bumper mounting structure that makes it possible to mount a bumper face to a wheel arch side end of a retainer without forming a flange on the wheel arch of the bumper face at the boundary with the vehicle body. With the goal.

  The mounting structure of the vehicle bumper according to the present invention is arranged from the vehicle end surface to the side surface portion, the lower end portion of the side surface portion extends to the wheel arch, and the terminal portion that forms the mating surface with the vehicle body and the wheel arch. The bumper mounting structure includes a bumper face having a flange portion bent inward, and a bumper face end portion is attached to a retainer fixed to the vehicle body so as to extend along the end portion. A bracket attached to the flange portion of the mating surface with the vehicle body in the vicinity of the terminal portion, and an extension portion extending away from the wheel arch is formed on the bracket, and the extension portion is a retainer. It can be attached to.

  According to this configuration, the bumper face can be attached to the end of the retainer on the wheel arch side by interposing the bracket having the extended portion without forming a flange portion at the boundary between the vehicle body and the bumper face. Is possible.

  In one embodiment of the present invention, the upper portion of the bracket is attached to the flange portion of the mating surface with the vehicle body, and the lower portion is formed at a position away from the front-rear direction end portion of the bumper face in the wheel arch. It can be attached to the flange part.

  According to this configuration, the mounting rigidity of the bracket with respect to the bumper face can be improved by mounting the bracket up and down.

  In one embodiment of the present invention, the retainer is formed with an extending portion that extends from the vicinity of the portion to which the bracket is attached and is attached to the end of the wheel arch of the vehicle body.

  According to this configuration, the portion where the retainer is attached to the vehicle body and the portion where the bracket is attached to the retainer are brought closer to each other, thereby improving the alignment between the vehicle body and the bumper face when the bumper face is attached to the vehicle body. be able to.

  In one embodiment of the present invention, the retainer is formed with a cover portion that extends from the bracket mounting portion toward the vehicle end surface and covers the flange portion of the mating surface with the vehicle body.

  According to this configuration, the contact between the vehicle body and the flange portion can be avoided, and the occurrence of rust on the mating surface with the flange portion can be prevented.

  In one embodiment of the present invention, the retainer is formed with an attachment portion that extends from the attachment portion of the bracket to the side approaching the wheel arch and to which a splash shield is attached.

  According to this configuration, the splash shield can be attached without directly attaching the splash shield to the panel member of the vehicle body. For this reason, the strength reduction of a vehicle body resulting from forming many attachment holes in a vehicle body can be suppressed.

  In one embodiment of the present invention, the cover portion and the attachment portion of the splash shield are connected.

  According to this structure, the rigidity of the attachment part of a splash shield can be improved.

  According to the present invention, the bumper face is attached to the end of the retainer on the wheel arch side by interposing the bracket formed with the extending portion without forming the flange portion at the boundary between the vehicle body and the bumper face. Is possible.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side view showing a rear portion of a vehicle provided with a vehicle bumper mounting structure according to an embodiment of the present invention. In FIG. 1, reference numeral X denotes a vehicle body. A bumper face 2 constituting a rear bumper is disposed at the lower rear side of the vehicle body X, and a rear combination lamp 3 is disposed above the bumper face 2.

  The rear fenders 1 on both sides of the vehicle body X are formed with recesses 42 that are retracted inward in the vehicle width direction on the vehicle rear side of the rear wheel W. The recess 42 includes a recess upper wall 42a and a recess vertical wall 42b depending from the recess upper wall 42a. Of these, the recess upper wall 42a is convex toward the lower side, It inclines so that it goes down gradually toward the front.

  The concave upper wall 42a is bent in the shape of a letter as shown in the drawing, and the front part extends substantially parallel to the longitudinal direction of the vehicle body.

  The recess 42 is opened not only in the vehicle width direction outside but also in the longitudinal direction of the vehicle body. Among these, the vehicle body front side of the recess 42 is opened in the wheel arch 43.

  As shown in FIG. 1, the bumper face 2 includes a main portion 44 that extends in the vehicle width direction and forms a vehicle end surface, and bent portions 45 that respectively extend forward from both ends of the main portion 44 in the extending direction of the vehicle. And disposed from the main portion 44 to the bent portions 45 on the left and right sides.

  Here, the bent portions 45 of the left and right bumper faces 2 wrap around the rear fenders 1 from the rear portion of the vehicle body X and enter the recesses 42.

  In this case, the upper edge portion of the bent portion 45 of the bumper face 2 is inclined so as to be lowered toward the front of the vehicle body so as to be adapted to the shape of the upper wall 42a of the concave portion 42, and bent in the shape of a letter on the way. ing. The lower portion of the end portion in the extending direction of the bumper face 2 (the bent portion 45) extends substantially parallel to the longitudinal direction of the vehicle body so as to be continuous with the outer edge of the wheel arch 43.

  In addition, the bumper face 2 is formed with flange portions 46 (46a, 46b) that are bent inwardly at the end portion that forms the mating surface with the concave upper wall 42a and the wheel arch 43.

  Further, in the present embodiment, a bracket 7 to be described later is attached to the flange portion 46b of the mating surface with the vehicle body X in the vicinity of the terminal portion of the bent portion 45, and the concave vertical wall 42b and the bumper face 2 (the bent portion). 45), a retainer 10 as a bumper fixing tool is disposed, and the bracket 7 is attached to the retainer 10.

  The retainer 10 is an integrally molded product made of a hard synthetic resin as a whole. The retainer 10 includes a retainer main body 11 and mounting portions 12 to 12 formed on the retainer main body 11 as shown in FIGS. 15.

  For the retainer main body 11, a band-shaped structure having a substantially constant width and a substantially constant thickness is used. One side in the thickness direction of the retainer main body 11 is a back side, and the other side in the thickness direction of the retainer main body 11 is a front side. The back side of the retainer main body 11 is directed to the concave vertical wall 42b.

  The retainer main body 11 is arranged in a state in which one end side in the extending direction (the right side in FIG. 2, the left side in FIG. 3) is directed toward the wheel arch 43 side so as to be along the terminal portion of the bent portion 45 in the bumper face 2. The one end side in the extending direction is inclined so as to be lower than the other end side in the extending direction, and is fixed to the vehicle body X, and the retainer body 11 is somewhat protruded downward as a whole. It is bent in a square shape.

  All of the attachment portions 12 to 15 are formed on the back side of the retainer main body 11 (the concave vertical wall 42b side). The attachment portions 12 to 15 are sequentially arranged from the other end in the extending direction of the retainer body 11 toward the one end in the extending direction.

  As shown in FIGS. 3 and 4, the attachment portion 12 is configured by locking claw portions 12 a and 12 b that are substantially divided into two, and the two locking claw portions 12 a and 12 b are arranged at their tip portions. It is formed so as to constitute an enlarged head that is substantially expandable / contractable using elastic deformation in the case. The retaining claws 12a and 12b are inserted (press-fitted) into mounting holes (not shown) formed in the concave vertical wall 42b to prevent the retaining claws 12a and 12b from coming off.

  The attachment portion 13 is formed so as to constitute an enlarged head as a whole, and is attached to an attachment hole (not shown) formed in the concave vertical wall 42b by utilizing its radial elastic deformation. By inserting (press-fitting), the retaining is performed.

  In the present embodiment, as shown in FIG. 3, the mounting portion 14 is formed by a fastener mounting hole 14a, and is formed in the concave vertical wall 42b corresponding to the mounting hole 14a and the mounting hole 14a. One end of the retainer main body 11 is fixed to the concave vertical wall 42b by using the mounting holes (not shown) and the fasteners 16 (see FIG. 2) pushed into them.

  Specifically, a stud bolt (not shown) is welded to the concave vertical wall 42b, and the mounting portion 14 is inserted into the stud bolt welded to the concave vertical wall 42b and fixed by a fastener (nut) 16. ing. In addition, since each such attachment part 12-14 is comprised similarly to the former, detailed description beyond this is abbreviate | omitted.

  The mounting portion 15 shown in FIGS. 3 and 4 is formed by a fastener mounting hole 15a formed in a mounting seat 20 standing on the inner side in the vehicle width direction on the back surface side of the retainer main body 11.

  In addition, the retainer body 11 is provided with a plurality of locking piece portions 21 (locking portions) on the upper side thereof. The retainer main body 11 (upper side portion) is formed with grooves 22 (see FIG. 2) corresponding to the respective locking piece portions 21, and the locking piece portions 21 are disposed in the respective grooves 22, respectively. Yes.

  Each locking piece 21 has a base end connected to a back side portion of the retainer main body 11 and a tip end side in a cantilever state, and the tip end side can be bent with the base end portion as a fulcrum. It is supposed to be possible. A locking claw portion 21 a is provided at the distal end portion of each locking piece portion 21 so as to protrude upward from the upper side portion of the retainer body 11. Each of the locking pieces 21 is integrally formed with the retainer body 11 with a hard synthetic resin, including the mounting portions 12 to 15 described above.

  In addition, the retainer body 11 is provided with a plurality of cover portions 23 on the upper side thereof. Each cover portion 23 has a base end portion connected to a rear side portion of the retainer main body 11 and a tip end side in a cantilever state. And the front end side is a plane part which covers the upper side part. In addition, each cover 23 is integrally formed with the retainer main body 11 with a hard synthetic resin including the mounting portions 12 to 15 described above.

  The retainer body 11 is provided with an insertion hole 24 (see FIG. 2) and attachment holes 25 and 26 at one end in the extending direction.

  As shown in FIG. 2, the insertion hole 24 has a substantially slit shape when viewed from the surface of the retainer body 11, and a mounting hole 25 is formed in the vicinity of the insertion hole 24 on the back side of the retainer body 11. Yes. Furthermore, from the vicinity of the insertion hole 25, as shown in FIG. 4, the mounting seat 20 described above stands on the inner side in the vehicle width direction.

  The mounting hole 26 is formed on the outer side in the vehicle width direction from the mounting hole 25, that is, on the side approaching the wheel arch 43.

  FIG. 5 is a perspective view of the wheel arch 43 around the boundary between the rear fender 1 and the bumper face 2 as viewed from the lower inside in the vehicle width direction, and FIG. 6 is a cross-sectional view taken along line AA in FIG. is there. One end of the retainer body 11 in the extending direction is attached to a wheel house outer 51 disposed inside the rear fender 1 in the vicinity of the boundary between the rear fender 1 and the bumper face 2 of the wheel arch 43 as shown in FIG. Yes.

  Here, on the inner side in the vehicle width direction of the wheel arch 43, a wheel house 5 formed by a wheel house outer 51 and a wheel house inner 52 is disposed as shown in FIG.

  Among these, the wheel house outer 51 is formed with a flange 51a that is bent inward in the vehicle width direction at the lower end thereof, and a part of the outer portion 51 is formed inward in the vehicle width direction from the wheel arch 43 as shown in FIG. A curved portion 51b having a curved shape that moves away from the center is formed.

  The rear end portion of the curved portion 51b is provided with mounting holes 51c and 51d, and one end portion of the retainer body 11 is a bolt in the mounting hole 51c (see FIG. 6) of the curved portion 51b. It is attached to the vehicle body X by being fastened at 100.

  FIG. 7 is a cross-sectional view taken along line B-B in FIG. 5. As shown in FIGS. 5 and 7, the first mounting seat 71 formed on the bracket 7 is inserted into one end portion of the retainer body 11. It is inserted through the hole 24. The bracket 7 is fastened to the retainer 10 at the first mounting seat 71 by a bolt 101 inserted through the mounting hole 25 of the retainer main body 11.

  In addition, the bracket 7 is formed with a second mounting seat 72 extending in parallel with the flange portion 46a of the portion forming the wheel arch 43 of the bumper face 2 at the lower portion thereof. The second mounting seat 72 is attached to the flange portion 46 a of the bumper face 2 by the rivets 102, whereby the lower portion of the bracket 7 is attached to the bumper face 2.

  Incidentally, although illustration is omitted in FIG. 5 for the sake of convenience, at least the periphery of the boundary between the rear fender 1 and the bumper face 2 in the wheel arch 43 including one end of the retainer main body 11 is denoted by reference numeral 8 in FIGS. Covered with a splash shield.

  The splash shield 8 is disposed below the wheel arch 43 so that muddy water or the like splashed up by the wheels W (see FIG. 1) does not enter the inside, and as described above, as shown in FIG. The mounting hole 51d (see FIG. 5) formed in the curved portion 51b of the tire house outer 51 is fastened by a bolt 103.

  FIG. 8 is a cross-sectional view taken along the line CC in FIG. 7, and the splash shield 8 is connected to the mounting hole 26 of the retainer main body 11 as shown in FIGS. By inserting the fastener 104, it is also attached to the retainer 10 on the side closer to the wheel arch 43 from the portion where the bracket 7 is fastened.

  FIG. 9 is a perspective view showing a state in which the retainer 10 is removed in FIG. In this embodiment, as shown in FIGS. 5 and 9, the flange height of the wheel arch 43 in the vicinity of the boundary between the rear fender 1 and the bumper face 2 is set to be extremely low compared to the flange portions 46a and 46b. The flange portion 46 is substantially interrupted by the low flange height.

  Further, as shown in FIG. 9, the first mounting seats 71, 72 described above are formed on the bracket 7 described above so as to stand up from a base portion 70 extending on the back surface of the bumper face 2, and an upper portion thereof. The third mounting seat 73 is formed so as to stand up from the base portion 70 so as to be substantially parallel to the flange portion 46 b of the bumper face 2.

  The third mounting seat 73 is attached to the flange portion 46 b in the vicinity of the end portion of the bumper face 2 by the rivet 105, whereby the upper portion of the bracket 7 is attached to the vicinity of the end portion of the bumper face 2.

  Here, in the bracket 7, the first mounting seat 71 extends inwardly from the wheel arch 43, whereby the bracket 7 is fastened to the retainer 10 at a position away from the wheel arch 43.

  In this way, the bumper face 2 is fixed to the retainer 10 by the intervention of the bracket 7 forming the first mounting seat 71, and the bracket 7 is attached to the wheel arch 43 from the boundary between the rear fender 1 and the bumper face 2. By being attached to the retainer 10 at a position away from the inside, the bumper face 2 can be attached to the wheel arch of the retainer 10 without forming the flange portion 46 at the boundary between the rear fender 1 and the bumper face 2 as shown in the figure. It can be attached to the end portion on the 43 side.

  In this case, even if the wheel W is displaced upward as shown by a two-dot chain line in FIG. 1 by forming a portion where the flange portion 46 is interrupted, interference with the flange portion 46 of the bumper face 2 is prevented. It can be avoided.

  Further, the flange portion 46a is a boundary portion of the wheel arch 43 between the rear fender 1 and the bumper face 2, that is, from the front end portion 47 of the terminal portion that forms the wheel arch 43 in the bumper face 2 to the main portion 44 (see FIG. 1) side. The second mounting seat 72 described above is attached to the flange portion 46a.

  Therefore, it is possible to attach the bracket 7 to the bumper face 2 (flange portion 46) so as to straddle the portion where the flange portion is substantially interrupted between the both flange portions 46a, 46b, and the bumper can be attached by upper and lower attachment. The mounting rigidity of the bracket 7 with respect to the face 2 can be improved.

  Further, as shown in FIGS. 5 and 7, the retainer 10 is formed so that the mounting seat 20 attached to the end of the wheel house outer 51 (vehicle body X) extends inward from the vicinity of the portion to which the bracket 7 is fastened. Has been. As described above, the portion where the retainer 10 is fastened to the vehicle body X and the portion where the bracket 7 is fastened to the retainer 10 are brought close to each other so that the vehicle body X and the bumper face when the bumper face 2 is attached to the vehicle body X are obtained. It is possible to improve the alignment with 2.

  Further, with respect to the retainer 10, the attachment hole 26 is formed on the side closer to the wheel arch 43 from the portion where the bracket 7 is fastened to the retainer 10, and the splash shield 8 is attached to the retainer 10, so that the panel member of the vehicle body X Even if the splash shield 8 is not directly attached, the splash shield 8 can be attached, and a decrease in strength due to the formation of a large number of attachment holes in the vehicle body X can be suppressed.

  FIG. 10 is a perspective view of the state in which the bumper face 2 is attached to the retainer 10 as viewed from above, and FIG. 11 is a cross-sectional view taken along line DD in FIG. As described above, in the state where the bumper face 2 is attached to the retainer 10, as shown in FIG. 10, the engaging claw portions 21a of the respective engaging piece portions 21 are attached to the respective mounting holes 46c of the bumper face 2 flange portion 46b. It is locked to.

  Regarding the locking of the locking claw portion 21a with respect to the mounting hole 46c, the flange portion 46b of the bumper face 2 is formed on the concave vertical wall 42b on the upper side portion of the retainer body 11 by using the locking piece portion 21 that can be bent. This is done by sliding to the side.

  In the present embodiment, when the bumper face 2 is attached to the retainer 10, the cover portions 23, 23,... Of the retainer main body 11 protrude upward from the vicinity of the fastening portion with the first attachment seat 71 to end the vehicle end surface. As shown in FIGS. 10 and 11, the flange portion 46b is covered from above. The cover member 23 is positioned so as to be interposed between the concave upper wall 42 a of the rear fender 1 and the flange portion 46 b of the bumper face 2.

  Here, even if the bumper face 2 is attached to the vehicle body X by the mounting portions 12 to 15 described above, the bumper face 2 is slightly displaced with respect to the vehicle body X. For this reason, there is a concern that the concave upper wall 42a is rubbed due to the contact between the concave upper wall 42a of the rear fender 1 and the flange 46b of the bumper face 2 and rust is generated at that portion.

  In the present embodiment, as described above, since the cover portion 23 that covers the flange portion 46b is formed on the retainer main body 11, contact between the rear fender 1 and the flange portion 46b is avoided, and a concave portion that becomes a mating surface with the flange portion 46b. The occurrence of rust on the upper wall 42a can be prevented.

  In this embodiment, the splash shield 8 (see FIGS. 6 to 8) is attached to the retainer 10 so that the attachment portion of the splash shield 8 and the cover portion 23 are connected. Thereby, the rigidity of the attachment part of the splash shield 8 can be improved.

  In the above-described embodiment, the case where the bumper face 2 constituting the rear bumper is attached to the vehicle body X (rear fender 1) has been described, but the present invention is not necessarily limited thereto. For example, the present invention may be applied when a bumper face constituting a front bumper is attached to a vehicle body (front fender).

In correspondence between the configuration of the present invention and the above-described embodiment,
The extension part of the bracket of the present invention corresponds to the first mounting seat 71,
Similarly,
The extension of the retainer corresponds to the mounting seat 20,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

The side view which shows the rear part of the vehicle provided with the attachment structure of the bumper for vehicles which concerns on embodiment of this invention. The side view which shows the retainer which concerns on embodiment of this invention. The figure which looked at the retainer of FIG. 2 from the back side. The figure which looked at the retainer of FIG. 2 from the back upper side. The perspective view which looked at the boundary part periphery of a rear fender and a bumper face of the wheel arch from the lower side in the vehicle width direction. FIG. 6 is a cross-sectional view taken along line AA in FIG. 5. FIG. 6 is a cross-sectional view taken along line B-B in FIG. 5. CC sectional view taken on the line in FIG. The perspective view which shows the state which removed the retainer in FIG. The perspective view which looked at the state which attached the bumper face to the retainer from upper direction. DD sectional view taken on the line in FIG. The side view which shows the rear part of the vehicle provided with the attachment structure of the conventional vehicle bumper.

Explanation of symbols

2 ... Bumper face 7 ... Bracket 8 ... Splash shield 10 ... Retainer 20 ... Mounting seat 23 ... Cover portion 43 ... Wheel arch 46a, 46b ... Flange portion 71 ... First mounting seat X ... Vehicle body

Claims (6)

Arranged from the end surface of the vehicle to the side surface portion, the lower portion of the terminal portion of the side surface portion extends to the wheel arch, and has a flange portion bent inward at the mating surface with the vehicle body and the terminal portion forming the wheel arch. With bumper face,
A bumper mounting structure for a vehicle that is attached to a retainer that is fixed to a vehicle body so that a terminal portion of the bumper face extends along the terminal portion,
Comprising a bracket attached to the flange portion of the mating surface with the vehicle body in the vicinity of the terminal portion;
An attachment structure for a vehicle bumper, wherein an extension portion extending away from the wheel arch is formed on the bracket, and the extension portion is attached to a retainer. The bracket has an upper portion attached to the flange portion of the mating surface with the vehicle body,
The vehicle bumper mounting structure according to claim 1, wherein a lower portion is attached to a flange portion formed at a position away from a front-rear direction end portion of the bumper face in the wheel arch. The mounting structure for a bumper for a vehicle according to claim 1 or 2, wherein the retainer is formed with an extending portion that is attached to an end portion of a wheel arch of a vehicle body, extending from the vicinity of a portion to which the bracket is attached. The vehicle bumper according to any one of claims 1 to 3, wherein the retainer is formed with a cover portion that extends from a mounting portion of the bracket toward a vehicle end surface and covers a flange portion of a mating surface with the vehicle body. Mounting structure. The vehicle bumper mounting structure according to any one of claims 1 to 4, wherein the retainer is formed with a mounting portion that extends from a mounting portion of the bracket toward the side closer to the wheel arch and to which a splash shield is mounted. . The bumper mounting structure for a vehicle according to claim 5, wherein the cover portion and the mounting portion of the splash shield are connected.

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