JP2022179004A - Front part vehicle body structure of vehicle - Google Patents

Abstract

To provide a front part vehicle body structure of a vehicle capable of absorbing impact energy caused by deformation due to a collision load from a front side of the vehicle and a collision load from the front side and an oblique upper side of the vehicle at the collision with a pedestrian.SOLUTION: A front part vehicle body structure of a vehicle 1 includes a bumper fascia 8 provided on a front surface of a vehicle 1, an upper panel 6 provided above the bumper fascia, and an impact absorbing member 32 provided inside the upper panel. The impact absorbing member 32 includes a front wall part 38 extending in the vehicle width direction, an upper wall part 50 extending in the vehicle rear side from an upper edge part of the front wall part, and a rear wall part 46 extending to the lower side of the vehicle from a rear edge part of the upper wall part. The impact absorbing member further includes a support member 34 supporting the impact absorbing member 32 from below. The support member includes an inclination part 56 extending obliquely downward and forward to a position separated downward with respect to a lower edge part of the front wall part 38 from a position of a lower edge part of the rear wall part 46 of the impact absorbing member.SELECTED DRAWING: Figure 4

Description

The present invention relates to a front body structure of a vehicle, and more particularly, a bumper fascia provided in front of the vehicle, an upper panel provided above the bumper fascia, and a shock absorbing member provided inside the upper panel. It relates to a front body structure of a vehicle.

Conventionally, in order to protect a pedestrian when the pedestrian collides with the upper panel or the front end of the bonnet of a vehicle, a structure for absorbing the collision load (absorbing the collision energy) has been studied. For example, if a pedestrian's thigh collides with the upper panel from the front and diagonally above the vehicle, or if the pedestrian's head collides with the front end of the bonnet from the front and diagonally above the vehicle, the vehicle side It is proposed to reduce the impact on the pedestrian by deforming the impact absorbing member provided at the collision site to absorb the energy (for example, Patent Document 1).

JP 2014-69591 A

The vehicle body front structure described in Patent Literature 1 reduces the impact at the time of collision by deforming the impact absorbing member against the impact load (dynamic load) input from the front and obliquely above the vehicle. is possible.

However, the vehicle body front structure described in Patent Document 1 is not intended to reduce shock absorption when loads are input from multiple directions such as the front of the vehicle and the upper side of the vehicle. Moreover, it is not intended to secure rigidity to prevent deformation when a static load is applied by an operator during vehicle maintenance, for example. In these respects, the vehicle body front structure described in Patent Document 1 has room for improvement.

Specifically, in vehicles such as SUVs, which have a large body size and a relatively high vehicle height, the height from the ground to the top of the bonnet is high, and at the time of a collision, the pedestrian's thighs are in front of the vehicle. collide almost horizontally from Further, when a child pedestrian collision is assumed, the pedestrian's head collides with the upper panel in front of the bonnet from the front and obliquely above the vehicle. As described above, the position and direction of the collision load input to the front portion of the vehicle differ particularly due to the difference in body size, so it is necessary to absorb the energy of the input loads in multiple directions.

In particular, from the viewpoint of pedestrian protection, the present inventors conducted extensive research on a structure capable of absorbing energy from input loads in multiple directions, particularly at the collision sites of the thighs and head with a vehicle. In this study, the load assuming a thigh collision mainly has a load vector in the front-rear direction with respect to the vehicle, and the load assuming a head collision has a load vector in the front-rear direction with respect to the vehicle. and a load vector in the vertical direction with respect to the vehicle. In addition, since the load vector in the front-rear direction is common in collisions of the thighs and the head, the shock absorbing member has a structure that can be deformed particularly against the load vector in the front-rear direction in addition to the load vector in the vertical direction. I found that I needed to.

On the other hand, when opening the hood and performing maintenance in the engine room, it is assumed that the operator will put his weight on the upper panel of the vehicle from above, so the load vector of the static load in the vertical direction is constant. We also paid attention to the need to ensure the above rigidity. However, simply using a highly rigid material for the impact absorbing member may hinder deformation in the front-rear direction.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems. In the event of a pedestrian collision, the collision energy is absorbed by deformation against the collision load from the front of the vehicle and the collision load from the front and obliquely above the vehicle. It is an object of the present invention to provide a vehicle front body structure that can
Further, the present invention has been made to solve the above-mentioned problems. In the event of a pedestrian collision, the collision energy is absorbed by deformation against the collision load from the front of the vehicle and the collision load from the front and obliquely above the vehicle. It is an object of the present invention to provide a front vehicle body structure of a vehicle capable of increasing the rigidity against a static input load from above the vehicle.

In order to solve the above-described problems, the present invention includes a bumper fascia provided on the front of a vehicle, an upper panel provided above the bumper fascia, and a shock absorbing member provided inside the upper panel. a front wall portion extending upward of the vehicle, an upper wall portion extending rearward of the vehicle from an upper edge portion of the front wall portion; and a rear wall portion extending downwardly of the vehicle from a rear edge portion of the upper wall portion, and further comprising a support member for supporting the shock absorbing member from below, the support member being positioned at a lower edge of the rear wall portion of the shock absorbing member. from the position of the front wall to a position spaced downward relative to the lower edge of the front wall.

The present invention configured as described above includes a shock absorbing member provided inside the upper panel and a support member supporting the shock absorbing member from below. The support member that supports the shock absorbing member from below includes an inclined portion that is spaced downward from the lower edge of the rear wall portion of the shock absorbing member to the lower edge portion of the front wall portion. It extends obliquely downward to the position Therefore, the deformation stroke of the impact absorbing member can be ensured against the collision load from the front and obliquely above the vehicle. can absorb the collision energy. As a result, in the present invention, when a pedestrian collides, the collision energy can be absorbed by the deformation with respect to the collision load from the front of the vehicle and the collision load from the front and obliquely above the vehicle.

In the present invention, preferably, the inclined portion of the support member has a rear edge to which the lower edge of the rear wall portion of the shock absorbing member is attached, and the rear edge of the inclined portion of the support member is preferably attached to the vehicle body. It is connected.
According to the present invention configured as described above, since the rear edge of the inclined portion of the support member is connected to the vehicle body, the rear edge of the support member to which the collision load from the front of the vehicle is input serves as a fulcrum. Therefore, the energy of the collision load from the front of the vehicle can be absorbed more effectively.

In the present invention, preferably, the inclined portion of the support member has a front edge portion formed below the lower edge portion of the front wall portion of the shock absorbing member, and the front edge portion of the support member has: A vertical surface portion extending in the vertical direction of the vehicle is formed, and the vertical surface portion is fixed to the bumper member.
According to the present invention configured as described above, the collision load from the front of the vehicle input through the bumper member is received by the vertical surface portion of the front edge portion of the support member, so that the load is more reliably applied to the support member. can be transmitted and its deformation promoted.

Further, in the present invention, preferably, the impact absorbing member and the supporting member are fixed to an arm portion extending forward of the vehicle from a frame member forming the vehicle body.
According to the present invention configured as described above, a collision load from the front and obliquely above the vehicle is transmitted to the vehicle body via the arm portion extending forward of the vehicle, thereby increasing the load applied to the pedestrian at the time of collision. can be prevented from becoming

In order to solve the above-described problems, the present invention includes a bumper fascia provided on the front of a vehicle, an upper panel provided above the bumper fascia, and a shock absorbing member provided inside the upper panel. a front wall portion extending upward of the vehicle, an upper wall portion extending rearward of the vehicle from an upper edge portion of the front wall portion; and a rear wall portion extending downward of the vehicle from a rear edge portion of the upper wall portion; the upper wall portion of the impact absorbing member includes a forward inclined portion extending in the vehicle width direction; It has a central projecting portion that projects upward, and a rear support portion that is continuous with the central projecting portion and is formed to be located on the vehicle lower side than the central projecting portion on the rear side of the vehicle. , a plurality of holes are formed so as to line up in the vehicle width direction, and a support member for supporting the shock absorbing member from below is provided. An inclined portion extending obliquely downward to a position spaced downward from the lower edge of the front wall portion.

According to the present invention configured as described above, the shock absorbing member provided inside the upper panel and the support member supporting the shock absorbing member from below are provided. The support member that supports the shock absorbing member from below includes an inclined portion that is spaced downward from the lower edge of the rear wall portion of the shock absorbing member to the lower edge portion of the front wall portion. It extends obliquely downward to the position Therefore, the deformation stroke of the impact absorbing member can be ensured against the collision load from the front and obliquely above the vehicle. can absorb the collision energy. As a result, in the present invention, when a pedestrian collides, the collision energy can be absorbed by the deformation with respect to the collision load from the front of the vehicle and the collision load from the front and obliquely above the vehicle.
Furthermore, the upper wall portion of the shock absorbing member has a forward inclined portion extending in the vehicle width direction, and the front inclined portion is formed with a plurality of holes arranged in the vehicle width direction, so that the shock absorption member can be mounted diagonally in front of the vehicle. The collision energy can be absorbed by effectively deforming the shock absorbing member against the collision load from above. In addition, since the upper wall portion has a central protruding portion that is continuous with the forward inclined portion and protrudes upward from the vehicle, for example, when a worker performs maintenance in the engine compartment, the operator puts his or her weight on the upper panel. Even if the body weight is applied to the impact absorbing member, the central protrusion supports the load, so that the rigidity against the static input load from above the vehicle can be increased.

According to the vehicle front body structure of the present invention, when a pedestrian collides, the collision energy can be absorbed by deformation with respect to the collision load from the front of the vehicle and the collision load from the front and obliquely above the vehicle.
Further, according to the vehicle front body structure of the present invention, when a pedestrian collides, the collision energy can be absorbed by deformation against the collision load from the front of the vehicle and the collision load from the front and obliquely above the vehicle. , the rigidity can be increased against the static input load from above the vehicle.

1 is a perspective view of a front portion of a vehicle having a front body structure for a vehicle according to an embodiment of the present invention, viewed obliquely from above on the right side of the vehicle; FIG. FIG. 2 is a perspective view of the front body structure of the vehicle according to the present embodiment, viewed from the right side of the vehicle and obliquely above; 1 is a partially cross-sectional perspective view of a front vehicle body structure of a vehicle according to the present embodiment, viewed obliquely from above on the left side of the vehicle; FIG. FIG. 2 is a partially cross-sectional side view of the front vehicle body structure of the vehicle according to the present embodiment, viewed from the left side of the vehicle; 5 is a partially enlarged view showing an enlarged part of FIG. 4; FIG. 1 is a perspective view showing a shock absorbing member according to this embodiment; FIG. FIG. 4 is a perspective view showing a supporting member for the impact absorbing member according to the present embodiment; FIG. 4 is a plan view showing a supporting member for the impact absorbing member according to the embodiment; FIG. 2 is a side cross-sectional view showing an example of a deformed state of an impact absorbing member and a supporting member when a collision load is input from the front and obliquely above the vehicle having the vehicle front body structure according to the present embodiment. FIG. 3 is a side cross-sectional view showing an example of a deformed state of a support member when a collision load is input from the front of the vehicle including the vehicle front body structure according to the present embodiment.

A vehicle front body structure according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

First, a vehicle front body structure according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. FIG. 1 is a perspective view of a front portion of a vehicle provided with a vehicle front body structure according to an embodiment of the present invention, viewed from the right side of the vehicle and obliquely above. FIG. 2 is a front body portion of the vehicle according to the embodiment. It is the perspective view which looked at the structure from the vehicle right side and diagonally upward.

First, as shown in FIG. 1, a vehicle 1 equipped with a vehicle front body structure according to an embodiment of the present invention includes a bonnet hood 4 covering an engine room 2 at the front and a vehicle width direction at the front side thereof. a grille upper panel (hereinafter referred to as an upper panel) 6 extending to the top, a bumper fascia 8 provided below the upper panel 6 and in front of the vehicle 1, and a front grille provided between the upper panel 6 and the bumper fascia 8. 10, head lamp units 12 arranged on both left and right sides of the front grille 10 and above the bumper fascia 8, and front fenders 14 provided on both left and right sides of the bonnet hood 4 and on the side surfaces of the vehicle.

Next, as shown in FIG. 2, the vehicle 1 includes a pair of left and right front side frames 16 extending in the front-rear direction of the vehicle in the engine room 2 and front end portions of the front side frames 16 as frame members constituting the vehicle body. and a bumper reinforcement 20 attached to the front ends of these crash cans and extending in the vehicle width direction.
A pair of left and right apron members 22 extending in the longitudinal direction of the vehicle are provided on the upper side of the engine room 2 and on both the left and right sides in the front portion of the vehicle 1. The apron members 22 and the front side frames 16 are attached to a suspension tower. 23 are connected.

Each apron member 22 has a vehicle front end portion curved inward in the vehicle width direction, and these end portions are connected to each other by a shroud upper member 24 . Further, at both ends of the shroud upper member 24, connecting members 26 are provided as frame members constituting the vehicle body and vertically connect the shroud upper member 24 and the front side frame 16 therebelow. there is

A radiator (not shown) for cooling the engine (not shown) by air guided through the front grille 10 and the like are provided below the shroud upper member 24 and behind the bumper reinforcement 20. . The bumper reinforcement 20 is provided with a pair of vertically extending reinforcing members 28 so as not to obstruct the inflow of air into the radiator.

The vehicle 1 also includes a bumper reinforcement 20 and a grill reinforcement 30 attached to a bumper support bracket 66, a support member 34, and the like, which will be described later. This grill reinforcement 30 is a member that mainly supports and reinforces the bumper fascia 8 and the front grill 10 . In this embodiment, the bumper reinforcement 20, the bumper fascia 8, and the grille reinforcement 30 function as bumper members that receive impacts from obstacles (such as the thighs of other vehicles and pedestrians) from the front of the vehicle. Further, the upper panel 6 functions as a member that receives the impact of an obstacle (such as a pedestrian's head) from the front and obliquely above the vehicle.

Next, a shock absorbing structure based on the front body structure of the vehicle according to the present embodiment will be described with reference to FIGS. 3 to 5. FIG. FIG. 3 is a partially cross-sectional perspective view of the front body structure of the vehicle according to the present embodiment as seen from the left side of the vehicle and obliquely above, and FIG. 4 is the front body structure of the vehicle according to the present embodiment viewed from the left side of the vehicle. FIG. 5 is a partial cross-sectional side view as seen, and FIG. 5 is a partially enlarged view showing an enlarged part of FIG.
First, as shown in FIGS. 3 to 5, in the present embodiment, a shock absorbing member 32 extending in the vehicle width direction is arranged behind the grille reinforcement 30 and below the upper panel 6. Below the shock absorbing member 32, there is arranged a shock absorbing support member (hereinafter referred to as “supporting member”) 34 that supports the shock absorbing member 32 and absorbs shock as will be described later.

Here, the shock absorbing member 32 is a member made of resin, and mainly receives the load applied from the upper panel 6 at the time of a frontal collision in which the collision load is applied from the front and obliquely above the vehicle, and deforms itself to absorb the collision energy. It has a role to absorb.
On the other hand, the support member 34 is a member made of resin, and primarily serves to support the upper portion of the grill reinforcement 30 so that the grill reinforcement 30 is not displaced to fall forward of the vehicle. Secondly, the support member 34 has a role of supporting the shock absorbing member 32 from below. Thirdly, the support member 34 has the role of absorbing the collision energy by deforming itself in the event of a frontal collision in which a collision load is applied from the front of the vehicle. Fourthly, the support member 34 has the role of ensuring the deformation stroke of the shock absorbing member 32 itself in the event of a frontal collision in which a collision load is applied from the front and obliquely above the vehicle.

Next, the configuration and mounting structure of the shock absorbing member 32 and the support member 34 will be described with reference to FIGS. 5 to 8. FIG. 6 is a perspective view showing a shock absorbing member according to the present embodiment, FIG. 7 is a perspective view showing a support member for the shock absorbing member according to the present embodiment, and FIG. 8 is a shock absorbing member according to the present embodiment. is a plan view showing a support member of the.
First, the configuration of the impact absorbing member 32 will be described with reference to FIGS. 5 and 6. FIG.
As shown in FIGS. 5 and 6, the shock absorbing member 32 mainly includes a front attachment portion 36 extending in the vehicle width direction along its front edge portion, and a rear edge portion of the front attachment portion 36 extending upward from the vehicle. an extending front wall portion 38; a forward inclined portion 40 extending obliquely from the upper edge portion of the front wall portion 38 toward the rear of the vehicle and upward of the vehicle; a projecting central protruding support portion 42; a rear supporting portion 44 positioned on the lower side of the vehicle than the central protruding support portion 42; It is composed of a rear wall portion 46 extending downward in the vehicle from the rear edge portion of the rear support portion 44 and a rear mounting portion 48 extending rearward in the vehicle from the lower edge portion of the rear wall portion 46 .

Among these parts, the forward inclined portion 40, the central protruding support portion 42 and the rear support portion 44 form the upper wall portion 50 of the impact absorbing member 32, and the upper wall portion 50 mainly extends forward and obliquely upward of the vehicle. In addition, when the worker accesses the inside of the engine room 2, it receives the weight of the worker, which is a static load, and supports the worker. .

Here, a plurality of rectangular voids 40a are formed in the forward inclined portion 40 of the upper wall portion 50 so as to be aligned in the vehicle width direction. In the present embodiment, these gaps 40a promote deformation of the shock absorbing member 32 itself when a collision load is applied from the front and obliquely above the vehicle, thereby reliably absorbing the collision energy and reducing the impact on pedestrians. I am trying to let
On the other hand, the central protruding support portion 42 has a top surface portion 42a extending substantially flat at its top. It is designed to ensure the rigidity to support the.

Next, the configuration of the support member 34 will be described with reference to FIGS. 5, 7 and 8. FIG.
As shown in FIGS. 5, 7 and 8, the support member 34 mainly includes a front attachment portion 52 extending in the vehicle width direction along its front edge portion, and a rear edge portion of the front attachment portion 52 extending toward the vehicle. A vertical surface portion 54 extending downward, a first inclined portion 56 extending obliquely from a lower edge portion 54a toward the rear of the vehicle and upward of the vehicle at both left and right end portions of the vertical surface portion 54 in the vehicle width direction, and a vertical surface portion. A second inclined portion 58 extending obliquely toward the vehicle rearward and vehicle upward direction from the vertical intermediate portion 54b of the central portion of the vehicle width direction of the vehicle 54, and extending between the first inclined portion 56 and the second inclined portion 58. Two intermediate reinforcing portions 60, and a rear mounting portion 62 extending planarly toward the rear of the vehicle from the rear edge portion of the first inclined portion 56 and the rear edge portion of the second inclined portion 58 and extending in the vehicle width direction. It is configured.

Notches 56a are formed on both left and right edges of the second inclined portion 58. When a collision load is input from the front of the vehicle, which will be described later, these notches 56a act as starting points for deformation of the support member 34 itself. I'm trying to be.

Next, the mounting structure of the impact absorbing member 32 and the support member 34 to the vehicle body will be described with reference to FIGS. 3 to 5. FIG.
As shown in FIGS. 3-5, the front mounting portions 36, 52 of the shock absorbing member 32 and the support member 34, respectively, are mounted on top of the grille reinforcement 30 by pin members, while the respective rear mounting portions Portions 48 , 62 are attached to shroud upper member 24 by pin members 64 .

Here, in this embodiment, as shown in FIG. 3, a bumper support bracket 66 that supports the grille reinforcement 30 on the vehicle body side is provided below the support member 34 in the vehicle. As shown in FIG. 4, left and right connecting members 26 (only the right side connecting member 26 of the vehicle is shown in FIG. 4) that vertically connect the shroud upper member 24 and the front side frame 16 have upper portions thereof. An arm member 68 extending forward of the vehicle is attached.
As shown in FIGS. 3 to 5, the rear mounting portion 62 of the support member 34 is mounted to the distal end portions of left and right arm members 68 by means of pin members 65 via bumper support brackets 66 . Furthermore, in this embodiment, the rear mounting portion 48 of the shock absorbing member 32 is mounted to the rear mounting portion 62 of the support member 34 using the pin member 64 described above. In this embodiment, both the shock absorbing member 32 and the support member 34 are fixed to the arm member 68 by these mounting structures.

Next, as shown in FIG. 5, the support member 34 is arranged so that the vertical surface portion 54 of the support member 34 is in planar contact with a portion of the grille reinforcement 30 along the vehicle width direction. As shown, in addition to the forward mounting portion 52 , the vertical surface portion 54 is also attached to the top of the grill reinforcement 30 by pin members 70 .

Next, as shown in FIGS. 4 and 5, the forward inclined portion 40 of the impact absorbing member 32 is arranged so as to be adjacent to the inner surface of the upper panel 6 across the width of the vehicle. When a pedestrian's head or the like collides, the shock absorbing member 32 receives the collision load from the front and obliquely above the vehicle. In this embodiment, a space is formed below the shock absorbing member 32 so as to ensure a deformation stroke of the shock absorbing member 32 due to such a collision load. The upper panel 6 is attached to the rear support portion 44 of the shock absorbing member 32 by means of pin members 72 .

That is, as shown in FIGS. 3 to 5, the support member 34 has the first inclined portion 56 obliquely extending from the vertical intermediate portion 54b of the vertical surface portion 54 toward the vehicle rearward and vehicle upward direction, as described above. have. With such a first inclined portion 56 and the mounting structure described above, in the present embodiment, the support member 34 is moved from the position of the lower edge of the rear wall portion 46 of the shock absorbing member 32 to the front wall portion of the shock absorbing member 32 . It has an inclined portion (first inclined portion 56) extending obliquely downward and forward to a position spaced downward from the lower edge portion of 38 .
Further, as particularly shown in FIG. 5, the second inclined portion 58 of the support member 34 is similarly inclined from the position of the lower edge of the rear wall portion 46 of the shock absorbing member 32 to the front wall portion 38 of the shock absorbing member 32 . It has an inclined portion (second inclined portion 58) extending obliquely downward and forward to a position spaced downward from the lower edge portion.
In this embodiment, with such a structure, a space is formed below the impact absorbing member 32 so as to secure the deformation stroke.

FIG. 9 shows a collision object that simulates the head of a pedestrian collides with the upper panel 6, and the shock absorbing member 32 and the support member 34 are in the latter stage of the collision when the collision load is input from the front and obliquely above the vehicle. It shows a deformed state, and it can be understood that the impact absorbing member 32 is deformed so that almost all of it is crushed.

On the other hand, FIG. 10 shows how the support member 34 deforms when the pedestrian's thigh collides with the vehicle 1 from the front. In FIG. 10, the support member 34 before deformation is indicated by a virtual line, and the support member 34 after deformation is indicated by a solid line. In this embodiment, when a load L from the front of the vehicle is applied to the bumper fascia 8 of the vehicle 1 as shown in FIG. , is transmitted to the vertical surface portion 54 (see FIG. 5) of the support member 34 to deform the support member 34 . Since the rear mounting portion 62 of the support member 34 is attached to the vehicle body, as shown in FIG. as), can be deformed to bend.

Next, the effects of the vehicle front body structure according to the embodiment of the present invention will be described.
First, the front vehicle body structure of the vehicle 1 according to this embodiment includes a shock absorbing member 32 provided inside the upper panel 6 and a support member 34 supporting the shock absorbing member 32 from below. The support member 34 includes a first ramp portion 56 (and a second ramp portion 58 ) that extends along the lower edge of the rear wall portion 46 of the shock absorbing member 32 . , to a position spaced downward from the lower edge of the front wall portion 38 obliquely downward and forward. Therefore, according to this embodiment, the deformation stroke of the shock absorbing member 32 against the collision load from the front and diagonally above the vehicle can be ensured. The collision energy can be absorbed by the deformation of the support member 34 when the collision load is input. As a result, in this embodiment, when a pedestrian collides, the collision energy can be absorbed by the deformation with respect to the collision load from the front of the vehicle and the collision load from the front and obliquely above the vehicle.

Further, according to the present embodiment, the first inclined portion 56 (and the second inclined portion 58) of the support member 34 is a rear attachment portion (rear edge) to which the lower edge portion of the rear wall portion 46 of the shock absorbing member 32 is attached. 62, and the rear attachment portion 62 of the first inclined portion 56 of the support member 34 is connected to the vehicle body. Bending deformation with 62 as a fulcrum can be generated. Therefore, the energy of the collision load from the front of the vehicle can be absorbed more effectively.

Further, according to the present embodiment, the first inclined portion 56 (and the second inclined portion 58) of the support member 34 is the front edge portion formed below the lower edge portion of the front wall portion 38 of the shock absorbing member 32. A vertical surface portion 54 extending in the vertical direction of the vehicle is formed at the front edge portion of the support member 34. Since the vertical surface portion 54 is fixed to the grill reinforcement (bumper member) 30, the grille rain By receiving the collision load from the front of the vehicle input via the force 30 on the vertical surface portion 54 of the front edge portion of the support member 34, the load is more reliably transmitted to the support member 34 and its deformation is promoted. can be made

Further, according to the present embodiment, the impact absorbing member 32 and the supporting member 34 are fixed to the arm member 68 extending forward of the vehicle from the connecting member 26, which is a frame member constituting the vehicle body. By transmitting the collision load from the front of the vehicle to the vehicle body via the arm member 68 extending forward of the vehicle, it is possible to suppress an increase in the load applied to the pedestrian at the time of collision.

Further, the front vehicle body structure of the vehicle 1 according to this embodiment includes a shock absorbing member 32 provided inside the upper panel 6 and a support member 34 supporting the shock absorbing member 32 from below. The support member 34 includes a first slanted portion 56 that extends downward from the lower edge of the rear wall 46 of the shock absorbing member 32 with respect to the lower edge of the front wall 38 . It extends obliquely downward and forward to a position spaced apart. Therefore, the deformation stroke of the shock absorbing member 32 can be ensured against the collision load from the front and obliquely above the vehicle. Collision energy can be absorbed by the deformation of the support member 34 . As a result, in this embodiment, when a pedestrian collides, the collision energy can be absorbed by the deformation with respect to the collision load from the front of the vehicle and the collision load from the front and obliquely above the vehicle.
Further, the upper wall portion 50 of the shock absorbing member 32 includes a forward inclined portion 40 extending in the vehicle width direction, a central projecting support portion 42 continuing from the forward inclined portion 40 and projecting upward of the vehicle, and the central projecting support portion 42 It has a rear support portion 44 which is continuous with the support portion 42 and is formed to be located on the vehicle lower side than the central protruding support portion 42 on the vehicle rear side thereof, and the front inclined portion 40 has a plurality of gaps (holes). Since the portions 40a are arranged in the vehicle width direction, the shock absorbing member 32 can be effectively deformed against the collision load from the front and obliquely above the vehicle to absorb the collision energy. In addition, since the upper wall portion 50 has a central protruding support portion 42 that is continuous with the forward inclined portion 40 and protrudes upward from the vehicle, for example, when a worker performs maintenance in the engine room, the upper panel 6 and the weight is applied to the impact absorbing member 32, the center protruding support part 42 supports the load together with the rear support part 44, so that the rigidity against the static input load from above the vehicle is increased. be able to.

1 Vehicle 2 Engine Room 6 Upper Panel 8 Bumper Fascia 10 Front Grille 24 Shroud Upper Member 26 Connecting Member 30 Grill Reinforcement 32 Shock Absorbing Member 34 Shock Absorbing Supporting Member (Supporting Member)
38 front wall portion 40 forward inclined portion 40a gap (hole)
42 central protruding support (central protruding part)
42a top surface portion 44 rear support portion 48 rear mounting portion (rear edge portion of shock absorbing member)
46 rear wall portion 50 upper wall portion 54 vertical surface portion 56 first inclined portion 58 second inclined portion 62 rear attachment portion (rear edge portion of support member)
68 arm member

Claims (5)

Bumper fascia provided on the front of the vehicle,
an upper panel provided above the bumper fascia;
A front body structure of a vehicle comprising a shock absorbing member provided inside the upper panel,
The impact absorbing member includes a front wall portion extending upwardly of the vehicle and extending in the vehicle width direction, an upper wall portion extending rearward of the vehicle from an upper edge portion of the front wall portion, and a rear edge portion of the upper wall portion extending toward the vehicle rearward. a downwardly extending rear wall portion;
Further, a supporting member for supporting the shock absorbing member from below is provided, and the supporting member extends downward from the lower edge of the rear wall of the shock absorbing member to the lower edge of the front wall. A front body structure of a vehicle, comprising: an inclined portion extending obliquely downward to a spaced position. The support member sloping portion has a rear edge to which the lower edge of the rear wall portion of the shock absorbing member is attached, and the support member sloping portion rear edge is connected to the vehicle body. 2. The front body structure of the vehicle according to 1. The inclined portion of the support member has a front edge portion formed below the lower edge portion of the front wall portion of the impact absorption member, and the front edge portion of the support member has a vertical surface portion extending in the vertical direction of the vehicle. 3. The front body structure of a vehicle according to claim 1, wherein the vertical surface portion is fixed to the bumper member. 4. The front body structure of a vehicle according to claim 1, wherein said shock absorbing member and said support member are fixed to an arm portion extending forward of the vehicle from a frame member constituting the vehicle body. Bumper fascia provided on the front of the vehicle,
an upper panel provided above the bumper fascia;
A front body structure of a vehicle comprising a shock absorbing member provided inside the upper panel,
The impact absorbing member includes a front wall portion extending upwardly of the vehicle and extending in the vehicle width direction, an upper wall portion extending rearward of the vehicle from an upper edge portion of the front wall portion, and a rear edge portion of the upper wall portion extending toward the vehicle rearward. a downwardly extending rear wall portion;
The upper wall portion of the impact absorbing member includes a forward inclined portion extending in the vehicle width direction, a central projecting portion continuous with the forward inclined portion and projecting upward of the vehicle, and a central projecting portion continuous with the vehicle. a rear support portion formed so as to be located on the vehicle lower side than the central projecting portion on the rear side, and the front inclined portion is formed with a plurality of holes arranged in the vehicle width direction,
Further, a supporting member for supporting the shock absorbing member from below is provided, and the supporting member extends downward from the lower edge of the rear wall of the shock absorbing member to the lower edge of the front wall. A front body structure of a vehicle, comprising: an inclined portion extending obliquely downward to a spaced position.

Images