JP7039788B2 - Bumper structure - Google Patents

Description

The present invention relates to a bumper structure in a front bumper of a vehicle.

Patent Document 1 discloses an example of a bumper structure in which a bumper panel is supported for a radiator support in which a radiator is supported. The bumper panel covers the radiator support from the front of the vehicle. In the bumper structure, a pair of left and right mounting portions protruding from the upper end of the bumper panel toward the rear of the vehicle are located above the radiator and are supported by an upper member (radio support upper) of the radiator support extending in the vehicle width direction. There is.

In the bumper structure disclosed in Patent Document 1, since the bumper panel is configured to protrude greatly from the radiator support to the front of the vehicle, the bending moment in the vehicle width direction acts on the pair of mounting portions due to the weight of the bumper panel. If the bending rigidity of the pair of mounting portions is insufficient, the bumper panel hangs down below the vehicle. Therefore, in order to improve the bending rigidity of the pair of mounting portions, a bead that is recessed toward the lower side of the vehicle and extends in the vehicle width direction may be provided at the upper end of the bumper panel to which the pair of mounting portions are connected. However, even if the bead is provided, there is a problem that the sagging of the bumper panel cannot be sufficiently suppressed. On the other hand, running wind enters through the gap between the upper end of the bumper panel and the engine hood. The running wind is supplied to the engine room, which promotes cooling of the engine. If the bead is provided, there is a problem that the flow of the running wind is obstructed.

Japanese Unexamined Patent Publication No. 2013-124044

In view of the above circumstances, it is an object of the present invention to provide a bumper structure capable of more effectively suppressing the sagging of the bumper panel while reducing the obstruction of the flow of the running wind.

According to the present invention, a radiator support having an upper member extending in the vehicle width direction, a main body portion in which a lamp is housed, and an extending portion extending in front of the upper member in the vehicle width direction of the main body portion are provided. A pair of lamp housings having a first support piece including the first support piece and being supported on both sides of the upper member in the vehicle width direction by the first support piece, a panel portion constituting the appearance design in front of the radiator support, and a panel portion. A bumper panel having a support portion extending from the upper end of the panel portion toward the rear of the vehicle is provided, and the support portion is connected to the upper end of the panel portion and has a predetermined length in the vehicle front-rear direction and is in the vehicle width direction. The first band-shaped portion extending in the direction of the vehicle, the standing portion extending from the rear end of the first band-shaped portion toward the rear of the vehicle while tilting toward the rear of the vehicle, and the standing portion extending in the width direction of the vehicle are connected to the upper end of the standing portion and the front and rear of the vehicle. It has a second band-shaped portion having a predetermined length in the direction and extending in the vehicle width direction, and a second support piece extending from the second band-shaped portion to the rear of the vehicle, and both sides of the second band-shaped portion in the vehicle width direction. Is supported by the extension portion of the pair of the first support pieces, the second support piece is supported by the upper member, and the inclination angle of the upright portion with respect to the first band-shaped portion is the inclination angle of the support portion. Provided is a bumper structure characterized in that the inclination angle at the center of the support portion in the vehicle width direction is smaller than the inclination angle on both sides in the vehicle width direction.

According to the bumper structure according to the present invention, it is possible to more effectively suppress the sagging of the bumper panel while reducing the obstruction of the flow of the traveling wind.

Other features and advantages of the present invention will be more apparent by the detailed description given below based on the accompanying drawings.

It is a perspective view of the bumper structure which concerns on one Embodiment of this invention. It is a top view of the bumper structure shown in FIG. It is sectional drawing which follows the line III-III of FIG. It is sectional drawing which follows the IV-IV line of FIG. It is sectional drawing which follows the VV line of FIG.

An embodiment for carrying out the present invention (hereinafter referred to as “embodiment”) will be described with reference to the accompanying drawings.

A bumper structure (hereinafter referred to as “bumper structure A”) according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5. The bumper structure A includes a radiator support 10, a pair of lamp housings 20, and a bumper panel 30 as components. The bumper structure A targets the structure in the front bumper of the vehicle. In FIGS. 2 and 5, the engine room 50 located behind the radiator support 10 is illustrated by an imaginary line (dashed-dotted line). 3 to 5 show an engine hood 51 that covers the engine room 50 from above the vehicle.

Here, for convenience of explanation, upr shown in these figures is the vehicle upward direction, dw is the vehicle downward direction, fr is the vehicle front direction, rr is the vehicle rear direction, rh is the vehicle right direction, and lh is the vehicle left direction. .. In the following description, when using up and down without special mention, it means up and down in the vehicle up and down direction, and when using left and right without special mention, it means left and right in the vehicle left and right direction (vehicle width direction). When using front and rear without special mention, it means front and rear in the front and rear direction of the vehicle.

The radiator support 10 supports the radiator 18 and the bumper beam 19 as shown in FIG. The radiator support 10 has an upper member 11, a lower member 12, a pair of side members 13, and an intermediate member 14. In the bumper structure A, the radiator support 10 is made of steel.

As shown in FIG. 1, the upper member 11 is located above the radiator 18 in the vehicle. The upper member 11 extends in the vehicle width direction. As shown in FIGS. 1 and 2, the upper member 11 has a front surface 111 and an upper surface 112. The front surface 111 faces the front of the vehicle. The upper surface 112 faces upward of the vehicle. The upper surface 112 is provided with a pair of outer mounting holes 112A and a pair of inner mounting holes 112B. As shown in FIGS. 2 and 3, the pair of outer mounting holes 112A are located on both sides of the upper member 11 in the vehicle width direction and penetrate the upper member 11 in the vehicle vertical direction. The pair of outer mounting holes 112A are used to support the pair of lamp housings 20 on the upper member 11. As shown in FIGS. 1, 2 and 4, the pair of inner mounting holes 112B are located between the pair of outer mounting holes 112A in the vehicle width direction and are arranged in the vehicle width direction. The pair of inner mounting holes 112B penetrate the upper member 11 in the vertical direction of the vehicle. The pair of inner mounting holes 112B are used to support the bumper panel 30 on the upper member 11.

As shown in FIG. 1, the lower member 12 is located below the radiator 18 in the vehicle. The radiator 18 is mounted on the lower member 12. The lower member 12 extends in the vehicle width direction.

As shown in FIG. 1, the pair of side members 13 are located between the upper member 11 and the lower member 12 in the vertical direction of the vehicle. The upper ends of the pair of side members 13 are connected to both sides of the upper member 11 in the vehicle width direction. The lower ends of the pair of side members 13 are connected to the lower member 12.

As shown in FIG. 1, the intermediate member 14 is located between the upper member 11 and the lower member 12 in the vehicle vertical direction, and is located between the pair of side members 13 in the vehicle width direction. The upper end of the intermediate member 14 is connected to the upper member 11. The lower end of the intermediate member 14 is connected to the lower member 12. The radiator 18 is located between the side member 13 located on the left side of the vehicle in the vehicle width direction and the intermediate member 14.

As shown in FIG. 1, the bumper beam 19 is located in front of the radiator 18 and extends in the vehicle width direction. The bumper beam 19 is supported by a pair of side members 13 and an intermediate member 14.

As shown in FIG. 1, the pair of lamp housings 20 are supported on both sides of the upper member 11 of the radiator support 10 in the vehicle width direction. The pair of lamp housings 20 are made of integrally molded synthetic resin. Each of the pair of lamp housings 20 has a main body 21 and a first support piece 22. The pair of lamp housings 20 are configured to be supported on both sides of the upper member 11 in the vehicle width direction by a pair of first support pieces 22.

A lamp (not shown) is housed in the main body 21. The lamp is, for example, a headlamp. As shown in FIG. 2, the first support piece 22 extends in the vehicle front-rear direction inside the vehicle width direction of the main body portion 21. The bending rigidity of the first support piece 22 is relatively high. The first support piece 22 includes an extension portion 221 extending forward of the vehicle from the front surface 111 of the upper member 11. In the bumper structure A, the first support piece 22 is in contact with the upper surface 112 of the upper member 11. As shown in FIG. 3, the first support piece 22 is provided with a support hole 222 and a panel mounting hole 223. The support hole 222 and the panel mounting hole 223 penetrate the first support piece 22 in the vertical direction of the vehicle. The position of the support hole 222 corresponds to the position of the outer mounting hole 112A provided in the upper member 11. The support holes 222 are used to support each of the pair of lamp housings 20 by the upper member 11. The panel mounting hole 223 is located in front of the vehicle and at the extension portion 221 with respect to the support hole 222. The panel mounting hole 223 is used to support the bumper panel 30 by a pair of first support pieces 22.

As shown in FIG. 3, the fastening member 40 is inserted into the support hole 222 and the outer mounting hole 112A. The fastening member 40 is, for example, a pin made of synthetic resin. The fastening member 40 supports the pair of first support pieces 22 from above the vehicle on both sides of the upper member 11 in the vehicle width direction. As a result, the pair of lamp housings 20 are supported on both sides of the upper member 11 in the vehicle width direction.

As shown in FIG. 1, the bumper panel 30 covers the radiator support 10 in front of the vehicle and is supported by the upper member 11 of the radiator support 10 and the first support piece 22 of the pair of lamp housings 20 from above the vehicle. .. The bumper panel 30 is made of integrally molded synthetic resin. The bumper panel 30 has a panel portion 31 and a support portion 32.

As shown in FIG. 1, the panel portion 31 constitutes an exterior design in front of the radiator support 10. The panel portion 31 covers the radiator support 10. As shown in FIG. 2, the panel portion 31 includes a portion located in front of the vehicle with respect to the pair of lamp housings 20. The panel portion 31 is provided with a grill 311. The grill 311 allows the traveling wind to pass behind the vehicle. The traveling wind is supplied to the radiator 18 via the grill 311.

As shown in FIG. 1, the support portion 32 extends from the upper end of the panel portion 31 toward the rear of the vehicle. As shown in FIGS. 3 to 5, the support portion 32 is covered with the engine hood 51. The support portion 32 has a first strip-shaped portion 321, an upright portion 322, a second strip-shaped portion 323, and a second support piece 324.

As shown in FIG. 2, the first band-shaped portion 321 is connected to the upper end of the panel portion 31. The first band-shaped portion 321 has a predetermined length in the vehicle front-rear direction and extends in the vehicle width direction.

As shown in FIGS. 3 to 5, the standing portion 322 stands up while being inclined from the rear end of the first band-shaped portion 321 toward the rear of the vehicle. The upright portion 322 extends in the vehicle width direction. Therefore, the standing portion 322 forms an inclination angle α with respect to the first band-shaped portion 321 over the vehicle width direction.

As shown in FIG. 2, the second band-shaped portion 323 is connected to the upper end of the upright portion 322. The second band-shaped portion 323 has a predetermined length in the vehicle front-rear direction and extends in the vehicle width direction. A pair of outer support holes 323A that penetrate the second strip-shaped portion 323 in the vertical direction of the vehicle are provided on both sides of the second strip-shaped portion 323 in the vehicle width direction. The position of the pair of outer support holes 323A corresponds to the position of the pair of panel mounting holes 223 provided in the extension portion 221 of the pair of first support pieces 22. The pair of outer support holes 323A are used to support the bumper panel 30 to the pair of first support pieces 22.

As shown in FIG. 2, the second support piece 324 extends from the second band-shaped portion 323 toward the rear of the vehicle. In the bumper structure A, the second support piece 324 includes a pair of left and right regions separated from each other in the vehicle width direction. In addition to the pair of left and right regions, the second support piece 324 may be an integrated region or three or more regions separated from each other in the vehicle width direction. The second support piece 324 is provided with a pair of inner support holes 324A that penetrate the second support piece 324 in the vertical direction of the vehicle. The pair of inner support holes 324A are located between the pair of outer support holes 323A in the vehicle width direction, and are located behind the pair of outer support holes 323A. The positions of the pair of inner support holes 324A correspond to the positions of the pair of inner mounting holes 112B provided in the upper member 11. The pair of inner support holes 324A are used to support the bumper panel 30 on the upper member 11.

The support of the bumper panel 30 with respect to the upper member 11 and the pair of first support pieces 22 will be described. First, as shown in FIG. 2, the second strip-shaped portion 323 and the second support piece 324 are arranged from above the vehicle with respect to the upper member 11 and the pair of first support pieces 22. Next, the position of the pair of outer support holes 323A is aligned with the position of the pair of panel mounting holes 223 provided in the extension portion 221 of the pair of first support pieces 22. At this time, the positions of the pair of inner support holes 324A are aligned with the positions of the pair of inner mounting holes 112B provided in the upper member 11. Finally, as shown in FIG. 3, the fastening member 40 is inserted into each of the pair of outer support holes 323A and the pair of panel mounting holes 223. At the same time, as shown in FIG. 4, the fastening member 40 is also inserted into each of the pair of inner support holes 324A and the pair of inner mounting holes 112B. As a result, both sides of the second strip-shaped portion 323 in the vehicle width direction are supported by the extending portions 221 of the pair of first support pieces 22. At the same time, the second support piece 324 is supported by the upper member 11. As described above, the bumper panel 30 has a configuration supported by the radiator support 10 and the pair of lamp housings 20. The lower end of the panel portion 31 is supported by the lower member 12 of the radiator support 10 by an integral hinge or the like.

The inclination angle α of the upright portion 322 with respect to the first band-shaped portion 321 will be described. As shown in FIG. 3, on both sides of the support portion 32 in the vehicle width direction (near the pair of first support pieces 22), the upright portion 322 has an inclination angle α1 with respect to the first band-shaped portion 321. As shown in FIG. 5, at the center of the support portion 32 in the vehicle width direction, the upright portion 322 has an inclination angle α2 with respect to the first band-shaped portion 321. The tilt angle α2 is smaller than the tilt angle α1. In the support portion 32, the inclination angle α is set so as to gradually decrease from both sides in the vehicle width direction toward the center.

Next, the action and effect of the bumper structure A will be described.

In the bumper structure A, each of the pair of lamp housings 20 supported on both sides of the upper member 11 of the radiator support 10 in the vehicle width direction has a main body portion 21 and a first support piece 22. The pair of first support pieces 22 includes an extension portion 221 extending in front of the upper member 11 on the inner side of the pair of main body portions 21 in the vehicle width direction. The bumper panel 30 has a support portion 32 extending from the upper end of the panel portion 31 toward the rear of the vehicle. The support portion 32 is connected to the upper end of the upright portion 322, has a predetermined length in the vehicle front-rear direction, and extends in the vehicle width direction. It has a support piece 324 and. Both sides of the second strip-shaped portion 323 in the vehicle width direction are supported by the extending portions 221 of the pair of first support pieces 22. The second support piece 324 is supported by the upper member 11. As a result, when viewed from the vehicle width direction as shown in FIG. 3, the distance L2 from the center of gravity G of the bumper panel 30 to the center of the pair of outer support holes 323A provided in the second band-shaped portion 323 is from the center of gravity G. It is smaller than the distance L1 to reach the front surface 111 of the upper member 11. The distance L1 and the distance L2 are both lengths in the front-rear direction of the vehicle. Therefore, it is possible to reduce the bending moment around the vehicle width, which is acted on by the weight of the bumper panel 30, on both sides of the support portion 32 in the vehicle width direction. Further, since the second support piece 324 is supported by the upper member 11, the component of the own weight of the bumper panel 30 acting on both sides of the support portion 32 in the vehicle width direction is reduced, so that the bending moment can be further reduced. .. Therefore, the sagging of the bumper panel 30 can be suppressed more effectively.

The support portion 32 of the bumper panel 30 is connected to the upper end of the panel portion 31, has a predetermined length in the vehicle front-rear direction, and extends in the vehicle width direction. It has an upright portion 322 that stands up while being inclined toward the rear of the vehicle and extends in the vehicle width direction. The standing portion 322 forms an inclination angle α with respect to the first band-shaped portion 321 in the vehicle width direction. As shown in FIG. 3, the inclination angle α1 on both sides of the support portion 32 in the vehicle width direction can be an angle close to 90 °. As a result, the bending rigidity of the support portion 32 on both sides in the vehicle width direction with respect to the vehicle front-rear direction is improved, so that the support portion 32 is less likely to bend downward in the vehicle. Therefore, the sagging of the bumper panel 30 can be suppressed more effectively.

The inclination angle α2 at the center of the support portion 32 in the vehicle width direction is smaller than the above-mentioned inclination angle α1. As a result, as shown in FIG. 5, the flow F of the traveling wind entering from the gap between the upper end of the panel portion 31 and the engine hood 51 smoothly flows along the shape of the support portion 32 in the center in the vehicle width direction. The running wind is easily supplied to the engine room 50. Therefore, it is possible to reduce the obstruction of the running wind flow by the support portion 32. From the above, according to the bumper structure A, it is possible to more effectively suppress the sagging of the bumper panel 30 while reducing the obstruction of the flow of the traveling wind.

The present invention is not limited to the above-described embodiment. The specific configuration of each part of the present invention can be freely redesigned.

A: Bumper structure 10: Radiator support 11: Upper member 111: Front surface 112: Upper surface 112A: Outer mounting hole 112B: Inner mounting hole 12: Lower member 13: Side member 14: Intermediate member 18: Radiator 19: Bumper beam 20: Lamp housing 21: Main body 22: First support piece 221: Extension part 222: Support hole 223: Panel mounting hole 30: Bumper panel 31: Panel part 311: Grill 32: Support part 321: First band-shaped part 322: Standing part 323: 2nd band-shaped part 323A: Outer support hole 324: 2nd support piece 324A: Inner support hole 40: Fastening member 50: Engine room 51: Engine hood α, α1, α2: Inclined angle G: Center of gravity L1, L2: Distance F: flow

Claims (1)

A radiator support with an upper member that extends in the vehicle width direction,
It has a main body portion in which a lamp is housed, and a first support piece including an extension portion extending in front of the upper member in the vehicle width direction of the main body portion, and the upper member is provided with the first support piece. A pair of lamp housings supported on both sides in the vehicle width direction,
A panel portion constituting the exterior design in front of the radiator support and a bumper panel having a support portion extending from the upper end of the panel portion toward the rear of the vehicle are provided.
The support portion is connected to the upper end of the panel portion, has a predetermined length in the vehicle front-rear direction, and extends in the vehicle width direction, and the first band-shaped portion toward the rear of the vehicle from the rear end of the vehicle. An upright portion that stands up while tilting and extends in the vehicle width direction, a second band-shaped portion that is connected to the upper end of the upright portion and has a predetermined length in the vehicle front-rear direction and extends in the vehicle width direction, and the first It has a second support piece extending from the two strips to the rear of the vehicle, and has.
Both sides of the second strip-shaped portion in the vehicle width direction are supported by the extending portions of the pair of the first support pieces.
The second support piece is supported by the upper member and is supported by the upper member.
The inclination angle of the upright portion with respect to the first band-shaped portion is characterized in that the inclination angle at the center of the support portion in the vehicle width direction is smaller than the inclination angle of the support portion on both sides in the vehicle width direction. The bumper structure.

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