JP2019188860A - Vehicle rear bumper structure - Google Patents

Abstract

To provide a vehicle rear bumper structure which enables improvement of rigidity of a rear bumper and efficient installation of electric components.SOLUTION: A bumper structure 100 includes a rear bumper 104 on which predetermined electric components are mounted. The rear bumper 104 has: a license plate attachment area 106 provided at a center as seen in a vehicle width direction; and a pair of expansion areas 108a, 108b which expand to the vehicle rear side further than the license plate attachment area 106 at both sides of the license plate attachment area 106 as seen in the vehicle width direction. The bumper structure 100 further includes a reinforcement member 118 attached to an upper part of the license plate attachment area 106 at the vehicle front side of the rear bumper 104 and extending in the vehicle width direction to the pair of expansion areas 108a, 108b. The electric components may be fixed to the reinforcement member 118.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle rear bumper structure.

  Various electrical components may be mounted on the rear bumper of the vehicle. For example, in Patent Document 1, a license plate lamp 9 is attached using a reinforcement 7 for reinforcing a bumper. In the configuration of Patent Document 1, a recess 3a that is recessed along the license plate is formed on the left side in the vehicle width direction of the rear bumper 3, and the reinforcement 7 is attached to the upper side of the recess 3a.

JP 2006-248407 A

  However, the reinforcement 7 of Patent Document 1 is provided locally with respect to the rear bumper 3 and does not reinforce the entire rear bumper 3. Reinforcement 7 has a relatively small configuration, and only a license plate lamp 9 is installed as an electrical component. However, various other electrical components are mounted on the current rear bumper. It is also desired to secure a place to install electrical parts.

  The present invention has been made in view of such a problem, and an object of the present invention is to provide a vehicle rear bumper structure capable of improving rigidity of a rear bumper and efficiently installing electrical components.

  In order to solve the above problems, a typical configuration of a vehicle rear bumper structure according to the present invention is a vehicle rear bumper structure including a rear bumper on which predetermined electrical components are mounted. The rear bumper is provided at the center in the vehicle width direction. A license plate mounting region, and a pair of bulging regions that bulge to the vehicle rear side of the license plate mounting region on both sides in the vehicle width direction of the license plate mounting region, and the vehicle rear bumper structure further includes a rear bumper A reinforcing member attached to the upper part of the license plate attaching region on the vehicle front side and extending in the vehicle width direction over the pair of bulging regions is provided, and an electrical component can be fixed to the reinforcing member.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the rear bumper structure for vehicles which can raise the rigidity of a rear bumper and can install an electrical component efficiently.

It is a figure showing the outline of the rear bumper structure for vehicles concerning the 1st example of the present invention. It is the figure which showed the rear bumper of Fig.1 (a) alone. It is the perspective view which looked at the rear bumper of Drawing 2 (a) from the left upper part ahead of vehicles. It is the figure which showed the reinforcement member of Fig.3 (a) independently. It is sectional drawing of the rear bumper of Fig.1 (a). It is the figure which showed the further structure of the reinforcement member of FIG.

  A vehicle rear bumper structure according to an embodiment of the present invention is a vehicle rear bumper structure including a rear bumper on which predetermined electrical components are mounted. The rear bumper includes a license plate mounting region provided in the center in the vehicle width direction, and a license plate. The vehicle rear bumper structure further includes a license plate mounting area on the vehicle front side of the rear bumper. And a reinforcing member extending in the vehicle width direction over a pair of bulging regions, and an electrical component can be fixed to the reinforcing member.

  According to the above-described reinforcing member, it is possible to efficiently reinforce the rear bumper having irregularities such as the license plate attachment region and the bulging region over a wide range in the vehicle width direction. Furthermore, by using a reinforcing member that is long in the vehicle width direction and has high rigidity as a fixing portion of the electric component, the electric component can be stably attached. In addition, it is possible to reduce the space inside the rear bumper and improve the working efficiency by installing a plurality of electrical components together on the reinforcing member.

  The license plate mounting area is bulged in a rectangular shape toward the front of the vehicle, and the rear bumper is further provided at the edge of the edge of the license plate mounting area on the front side of the vehicle, protruding toward the reinforcing member, and connected to the reinforcing member. You may have a protruding shape part.

  Since the edge ridge line, that is, the corner portion of the license plate mounting region has high rigidity, the protruding member can fully support the reinforcing member. Further, the rear bumper is made of resin, and by providing the protruding shape portion at the ridge line portion, sink marks are less noticeable than when the protruding shape portion is provided on a flat surface.

  The reinforcing member may have a predetermined protrusion that protrudes forward from the center in the vehicle width direction. According to such a protrusion, the rigidity can be further improved at the center position of the rear bumper, and the deformation can be efficiently prevented when the rear bumper is pressed forward of the vehicle.

  The rear bumper is attached to the tail gate member at the rear end of the vehicle body, the reinforcing member faces a ventilation port provided in the tail gate member, and the lower end of the reinforcing member is below the lower end of the tail gate member. And it is good to go around the vehicle front.

  The reinforcing member forms an intricate path from the vehicle lower side toward the upper ventilation port. With this complicated route, it is possible to suitably protect the ventilation port from dust or snow that is rolled up during traveling.

  The lower end of the tail gate member is formed by a flange extending obliquely downward on the rear side of the vehicle from a position below the vent, and the reinforcing member is positioned from the position facing the vent from the tip of the flange. Extends to the lower side, and further extends to the front of the vehicle so as to overlap with the lower side of the flange. A flange and a reinforcing member form a labyrinth-shaped air path below the ventilation port. It may be.

  By forming the above-described labyrinth-shaped air path, it is possible to suitably prevent entry of dust, snow, or the like wound up during traveling into the ventilation port.

  The edge of the ventilation port protrudes from the tailgate member toward the rear of the vehicle, and the reinforcing member protrudes from the predetermined portion around the ventilation port toward the tailgate member toward the tailgate member side from the tip of the edge of the ventilation port. You may have a rib.

  Also with the above configuration, a complicated path toward the ventilation port is formed, so that dust or the like can be made difficult to reach the ventilation port.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the examples are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  FIG. 1 is a diagram showing an outline of a vehicular rear bumper structure (hereinafter referred to as a bumper structure 100) according to a first embodiment of the present invention. FIG. 1A is a perspective view of the vehicle 102 on which the bumper structure 100 is implemented looking down from the rear or the left side. Hereinafter, in FIG. 1 and all other drawings of the present application, the vehicle front-rear direction is indicated by arrows F (Forward) and B (Backward), the vehicle width direction is indicated by arrows L (Leftward), R (Rightward), and the vehicle vertical direction, respectively. Are illustrated by arrows U (Upward) and D (Downward), respectively.

  The rear bumper structure 100 is configured around a rear bumper 104 attached to the lower rear portion of the vehicle 102. The rear bumper 104 is mainly made of resin, and a license plate mounting area 106 for mounting a license plate (not shown) is provided at the center in the vehicle width direction, and a pair of brake lamps (not shown) are also mounted on both sides in the vehicle width direction. Bulge regions 108a and 108b are provided.

  FIG. 1B is a diagram in which the rear bumper 104 of FIG. 1A is removed. The rear bumper 104 is attached to the tail gate member 110 at the lower rear end of the vehicle body. The tail gate member 110 is provided with a ventilation port (hereinafter referred to as a ventilator 112a, 112b) that penetrates the inside and outside of the vehicle body. In the present embodiment, two ventilators 112a and 112b are provided symmetrically with respect to the center in the vehicle width direction of the tail gate member 110. As will be described in detail later, the bumper structure 100 of the present embodiment also serves to prevent foreign matter from entering the ventilators 112a and 112b.

  FIG. 2 is a diagram showing the rear bumper 104 of FIG. FIG. 2A is a view of the rear bumper 104 of FIG. The license plate mounting area 106 is configured to be recessed forward of the vehicle along a rectangular license plate (not shown). The upper side of the license plate attachment area 106 is formed in an eaves shape, and a plurality of openings 114 for installing license plate lamps 136a and 136b and a rear confirmation camera 134 described later are provided.

  The bulging areas 108a and 108b bulge toward the vehicle rear side of the license plate mounting area 106 on both sides of the license plate mounting area 106 in the vehicle width direction. The bulging area 108a has a configuration in which the central side is open, and brake lamp fixing portions 116a and 116b to which brake lamps (not shown) are attached are provided on the inner side.

  FIG. 2B is a view of the rear bumper 104 of FIG. 1A viewed from the front of the vehicle. In the present embodiment, a long reinforcing member 118 is attached to the front side of the rear bumper 104 in the vehicle. The reinforcing member 118 is made of resin or metal and has a shape extending in the vehicle width direction over the left and right bulging regions 108a and 108b above the license plate mounting region 106.

  In addition to reinforcing a wide range of the rear bumper 104, the reinforcing member 118 plays a plurality of roles as an installation place of various electrical components, and a cover for the ventilators 112a and 112b (see FIG. 1B) described above. For example, a harness 120 is fixed to the reinforcing member 118 as an electrical component. The harness 120 extends from the vehicle body side and is connected to a brake lamp (not shown), license plate lamps 136a and 136b (see FIG. 4B), a rear confirmation camera 134, etc. It is for sending and receiving. Since the reinforcing member 118 is long in the vehicle width direction and has high rigidity, the bundled harness 120 can be suitably fixed using pins, clips, etc., and the harness 120 is mounted on the rear bumper 104 in a more orderly state. Make it possible to do.

  FIG. 3 is a perspective view of the rear bumper 104 of FIG. 2A as viewed from the upper left side in front of the vehicle. FIG. 3A shows the entire vehicle front side of the rear bumper 104 with the harness 120 omitted. As a whole, the reinforcing member 118 is formed in a convex shape (character shape) whose longitudinal section is convexly bent toward the rear side of the vehicle, and extends in the vehicle width direction.

  FIG.3 (b) is the A section enlarged view of Fig.3 (a). Part A enlarges the fixing part 122 of the reinforcing member 118 to the rear bumper 104. In FIG. 3B, for the sake of illustration, the reinforcing member 118 is shown in a state where it is cut along the cross section of the hatched portion and partially omitted. The fixing part 122 is fixed to the rear bumper 104 by welding or fastening via a fixing tool 124 such as a pin or a bolt. The reinforcing member 118 is provided with various fixing portions to the rear bumper 104 at various locations in the vehicle width direction, but the fixing portion 122 provided at the A portion is fixed near the edge of the license plate mounting area 106.

  At the edge of the license plate mounting area 106, a protruding shape portion 126 is provided as a boss that receives the fixing portion 122. Specifically, the license plate attachment region 106 is in a state of bulging in a rectangular shape toward the front of the vehicle, and the protruding shape portion 126 is provided on the edge line 128 of the edge, that is, the corner portion. The protruding shape portion 126 protrudes toward the reinforcing member 118 and is connected to the fixing portion 122 of the reinforcing member 118 via the fixture 124.

  Since the ridgeline 128 of the bulging license plate attachment region 106 has high rigidity, the protruding member 126 provided on the ridgeline 128 can fully support the reinforcing member 118. Further, the rear bumper 104 is made of resin, and by providing the protruding shape portion 126 at the portion of the ridgeline 128, compared to the case where the protruding shape portion 126 is provided on a flat surface, the rear bumper 104 is less noticeable even when sink marks occur, and has a beautiful appearance. Can keep.

  FIG. 4 is a diagram independently showing the reinforcing member 118 of FIG. FIG. 4A shows the reinforcing member 118 from the same direction as FIG. As described above, the reinforcing member of this embodiment also has a function as a bracket of the electrical component. For example, a camera attachment portion 130 for attaching the rear confirmation camera 134 (see FIG. 4B) is provided at the center of the reinforcing member in the vehicle width direction. Further, on both sides in the vehicle width direction across the camera mounting portion 130, lamp mounting portions 132a and 132b for mounting license plate lamps 136a and 136b (see FIG. 4B) are provided.

  FIG. 4B shows the reinforcing member 118 of FIG. 4A as viewed from the upper left on the rear side of the vehicle. The reinforcing member 118 has a cross-section that is convex toward the rear of the vehicle, and the rear confirmation camera 134 that is attached to the camera attachment portion 130 is preferably attached in a posture that faces slightly below the rear of the vehicle. it can. Similarly, the license plate lamps 136a and 136b attached to the lamp attaching portions 132a and 132b can be attached in a suitable posture so as to illuminate the lower license plate (not shown).

  As described above, according to the reinforcing member 118 of the present embodiment, first, the rear bumper 104 having a concavo-convex shape that is likely to be a starting point of deformation, such as the license plate attachment region 106 and the bulging regions 108a and 108b, is widened in the vehicle width direction. Reinforce efficiently over a range, and can improve durability against deformation and vibration. Further, the reinforcing member 118 also functions as an installation place for electrical components such as the license plate lamps 136a and 136b, the rear confirmation camera 134, and the harness 120 (see FIG. 3B). The reinforcing member 118 can use various rigidity to attach various electrical components in a stable posture and protect them from vibration during traveling. Also, in this embodiment, by installing a plurality of electrical components together in a reinforcing member, the space inside the rear bumper 104 can be saved, and the work efficiency during installation and maintenance of electrical components is also improved. To do.

  FIG. 5 is a cross-sectional view of the rear bumper 104 of FIG. 5A is a BB cross-sectional view corresponding to the position of the ventilator 112a, and FIG. 5B is a CC cross-sectional view corresponding to the range between the ventilators 112a and 112b. Hereinafter, as a further configuration of the reinforcing member 118, a function of preventing foreign matter from entering the ventilator 112a will be mainly described.

  As shown in FIG. 5A, the tail gate member 110 is covered with the upper part of the rear bumper 104. The tail gate member 110 is formed of a plurality of panel members, and a flange 138 is formed at the lower end of the tail gate member 110 so as to extend obliquely downward toward the rear side of the vehicle as a joint portion between the panels. The ventilator 112 a is fitted into the tail gate member 110 above the flange 138 and faces a part of the reinforcing member 118.

  The reinforcing member 118 functions as a cover that prevents foreign matter from entering the ventilator 112a. Specifically, the reinforcing member 118 has a lower end portion 140 that extends downward from the front end of the flange 138 that is the lower end of the tailgate member 110 and then further extends to the front of the vehicle from the front to the flange 138. The license plate mounting area 106 of the rear bumper 104 extends around the front of the vehicle. The reinforcing member 118 forms an intricate air path R1 indicated by an arrow from the lower side of the vehicle toward the upper ventilator 112a.

  The maze-like structure where the route R1 is complicated is generally called a labyrinth shape or the like, and it is difficult for foreign matter to enter. In general, dust, snow, or the like may be wound up by a traveling wind while traveling under a vehicle. In particular, in a structure in which the rear bumper protrudes downward from the lower surface of the vehicle body, it becomes easier to entrain the running wind inside the rear bumper. However, in the present embodiment, a labyrinth-shaped air path R1 is formed below the ventilator 112a by the flange 138 and the reinforcing member 118, thereby preventing direct blowing of traveling wind into the ventilator 112a. Thus, foreign matter such as dust and snow can be prevented from entering the vehicle interior from the ventilator 112a.

  In the region shown in FIG. 5B, the rigidity of the reinforcing member 118 is further improved. Here, as shown in FIG. 4A, a protrusion 142 protruding forward of the vehicle is provided at the center of the reinforcing member 118 in the vehicle width direction. As shown in FIG. 5B, the tip of the protrusion 142 is slightly rounded and extends to the vicinity of the rear wall of the tailgate member 110. According to the protrusion 142, when the rear bumper 104 is pressed forward of the vehicle, the rear bumper 104 is prevented from moving forward, and the shape of the rear bumper 104 is increased by increasing the secondary moment of the cross section of the rear bumper 104. The deformation of the rear bumper 104 can be prevented.

  FIG. 6 is a view showing a further configuration of the reinforcing member 118 of FIG. FIG. 6A shows the relationship with the ventilator 112b corresponding to the D portion at the left end of the reinforcing member 118 of FIG. 4B. As shown in FIG. 6A, the reinforcing member 118 has ribs 144 outside the range facing the ventilator 112b. The rib 144 is also a part for preventing foreign matter from entering the ventilator 112b.

  6B is a cross-sectional view taken along the line E-E in FIG. 5A, and corresponds to the right end portion symmetrical to the portion D in the reinforcing member 118 in FIG. 4B. As shown in FIG. 6B, the edge 146 of the ventilator 112a protrudes from the tail gate member 110 toward the rear of the vehicle. The rib 144 of the reinforcing member 118 protrudes toward the tail gate member 110 from the tip of the edge 146 of the ventilator 112a toward the tail gate member 110 in front of the vehicle from a portion around the ventilator 112a. This rib 144 also forms an intricate path R2 indicated by an arrow toward the ventilator 112a, making it possible to make it difficult for dust or snow to reach the ventilator 112a.

  As described above, according to the present embodiment, the reinforcing member 118 is used to achieve both the improvement of the rigidity of the rear bumper 104 and the securing of the installation location of various electrical components without increasing the number of components or increasing the weight. It is possible.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  The present invention can be used in a vehicle rear bumper structure.

DESCRIPTION OF SYMBOLS 100 ... Bumper structure, 102 ... Vehicle, 104 ... Rear bumper, 106 ... License plate attachment area, 108a, 108b ... Expansion area, 110 ... Tail gate member, 112a, 122b ... Ventilator, 114 ... Opening, 116a, 116b ... Brake lamp Fixing part, 118 ... reinforcing member, 120 ... harness, 122 ... fixing part, 124 ... fixing tool, 126 ... projection-shaped part, 128 ... ridge line, 130 ... camera mounting part, 132 ... lamp mounting part, 134 ... cam for rear confirmation 136a, 136b ... license plate lamp, 138 ... flange, 140 ... lower end, 142 ... projection, 144 ... rib, 146 ... edge, R1 ... route, R2 ... route

Claims (6)

In a vehicle rear bumper structure including a rear bumper on which predetermined electrical components are mounted,
The rear bumper is
A license plate mounting area provided in the center of the vehicle width direction;
A pair of bulging areas bulging to the rear of the vehicle from the license plate mounting area on both sides of the license plate mounting area in the vehicle width direction;
The vehicle rear bumper structure further includes a reinforcing member attached to an upper part of the license plate attachment region on the vehicle front side of the rear bumper and extending in the vehicle width direction over the pair of bulging regions,
A rear bumper structure for a vehicle, wherein the electrical component can be fixed to the reinforcing member. The license plate mounting area bulges in a rectangular shape toward the front of the vehicle,
The rear bumper further includes a projecting shape portion that is provided on a ridge line of an edge of the license plate mounting region on the vehicle front side and projects toward the reinforcing member and is connected to the reinforcing member. Rear bumper structure for vehicles.   The vehicle rear bumper structure according to claim 1, wherein the reinforcing member has a predetermined protruding portion that protrudes forward from the center in the vehicle width direction. The rear bumper is attached to a tailgate member at the rear end of the vehicle body,
The reinforcing member faces a ventilation opening provided in the tail gate member,
4. The vehicular rear bumper structure according to claim 1, wherein a lower end of the reinforcing member wraps around lower than the lower end of the tail gate member and toward the front of the vehicle. 5. The lower end of the tailgate member is formed by a flange extending obliquely downward on the rear side of the vehicle from a location below the ventilation port,
The reinforcing member extends from the position facing the ventilation port to below the tip of the flange, and further extends from there to the front of the vehicle so as to overlap the flange.
The vehicle rear bumper structure according to claim 4, wherein a labyrinth-shaped air path is formed below the ventilation opening by the flange and the reinforcing member. An edge of the ventilation port protrudes rearward from the tailgate member,
2. The reinforcing member according to claim 1, further comprising: a rib projecting from a predetermined portion around the ventilation port toward the tail gate member toward the tail gate member rather than a tip of the edge of the ventilation port. The vehicle rear bumper structure according to any one of 5.

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