Vehicle front body structure

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

[Technical field]

[0001] The present invention relates to a front body structure of a vehicle, and in particular to a front body structure of a vehicle having a bumper fascia provided on the front side of the vehicle, an upper panel provided above the bumper fascia, and an impact absorbing member provided inside the upper panel. [Background technology]

[0002] In the past, in order to protect pedestrians when they collide with the upper panel or the front end of the bonnet of a vehicle, structures that absorb the collision load (absorb the collision energy) have been studied. For example, when the thigh of a pedestrian collides with the upper panel from the front and diagonally above the vehicle, or when the head of a pedestrian collides with the front end of the bonnet from the front and diagonally above the vehicle, it has been proposed to reduce the impact on the pedestrian by deforming an impact absorbing member provided at the collision site on the vehicle side to absorb energy (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-69591 A Summary of the Invention [Problem to be solved by the invention]

[0004] The vehicle front body structure described in Patent Document 1 is capable of reducing the impact of a collision (dynamic load) input from the front and diagonally above the vehicle by deforming an impact absorbing member.

[0005] However, the vehicle body front structure described in Patent Document 1 is not designed to reduce shock absorption when loads are input from multiple directions, such as from the front or above the vehicle. In addition, it is not designed to ensure rigidity to prevent deformation when a static load from a worker is applied, for example, during vehicle maintenance. In these respects, the vehicle body front structure described in Patent Document 1 has room for improvement.

[0006] Specifically, in vehicles such as SUVs that have a large body size and a relatively high vehicle height, the height from the ground to the top surface of the bonnet is high, and in the event of a collision, the thighs of a pedestrian collide with the vehicle from the front in a substantially horizontal direction. In addition, in the case of a collision involving a child pedestrian, the pedestrian's head collide with the upper panel at the front of the bonnet from the front and diagonally above the vehicle. In this way, the position and direction of the collision load input to the front of the vehicle differs due to differences in body size, and therefore it is necessary to absorb energy against the input load from multiple directions.

[0007] In particular, from the viewpoint of pedestrian protection, the inventors have conducted extensive research into a structure capable of absorbing energy from input loads in multiple directions, particularly at the sites of impact of the thighs and head with the vehicle. In this research, the inventors have focused on the fact that the load assumed in the impact of the thighs has a load vector mainly in the front-rear direction with respect to the vehicle, while the load assumed in the impact of the head has both a load vector in the front-rear direction with respect to the vehicle and a load vector in the up-down direction with respect to the vehicle. Since the load vector in the front-rear direction is common in the impacts of the thighs and head, the inventors have found that the impact absorbing member needs to have a structure capable of deforming not only to the up-down load vector, but also to the load vector in the front-rear direction in particular.

[0008] On the other hand, when opening the hood to perform maintenance inside the engine bay, it is expected that the worker will place his / her weight on the upper panel from above the vehicle, so we also focused on the need to ensure a certain level of rigidity against the load vector of static loads in the vertical direction. However, if a material with high rigidity is simply used for the impact absorbing member, there is a risk that it will hinder deformation in the front-rear direction.

[0009] Therefore, the present invention has been made to solve the above-mentioned problems, and has an object to provide a front body structure of a vehicle that can absorb collision energy through deformation in the event of a pedestrian collision, in response to a collision load from the front of the vehicle and a collision load from the front and diagonally above the vehicle. Moreover, the present invention has been made to solve the above-mentioned problems, and has an object to provide a front body structure of a vehicle that is capable of absorbing collision energy through deformation in the event of a pedestrian collision, in response to a collision load from the front of the vehicle and a collision load from the front and diagonally above the vehicle, and that is capable of increasing rigidity against a static input load from above the vehicle. [Means for solving the problem]

[0010] In order to solve the above-mentioned problems, the present invention provides a front body structure for a vehicle including a bumper fascia provided on a front side of the vehicle, an upper panel provided above the bumper fascia, and an impact absorbing member provided inside the upper panel, the impact absorbing member including a front wall portion extending upwardly of the vehicle, an upper wall portion extending from an upper edge of the front wall portion toward the rear of the vehicle, and a rear wall portion extending downwardly of the vehicle from a rear edge of the upper wall portion, each extending in the vehicle width direction, and further including a support member that supports the impact absorbing member from below, the support member including an inclined portion that extends obliquely downwardly from the position of a lower edge of the rear wall portion of the impact absorbing member to a position spaced downwardly from the lower edge of the front wall portion. The inclined portion of the support member has a rear edge portion to which the lower edge portion of the rear wall portion of the impact absorbing member is attached, and the rear edge portion of the inclined portion of the support member is connected to the vehicle body. , which is its characteristic.

[0011] The present invention thus configured includes an impact absorbing member provided inside the upper panel, and a support member that supports the impact absorbing member from below. The support member that supports the impact absorbing member from below includes an inclined portion that extends obliquely downward from the position of the lower edge of the rear wall portion of the impact absorbing member to a position spaced downward from the lower edge of the front wall portion. Therefore, it is possible to ensure a deformation stroke of the impact absorbing member against a collision load from the front of the vehicle and obliquely above, and further, against a collision load from the front of the vehicle, the collision load is input to the support member and the support member deforms, thereby absorbing the collision energy. As a result, in the present invention, in the event of a pedestrian collision, the collision energy can be absorbed by deformation against a collision load from the front of the vehicle and a collision load from the front of the vehicle and obliquely above the vehicle.

[0012] Also, According to the present invention configured in this manner, the rear edge of the inclined portion of the support member is connected to the vehicle body, so that the support member to which a collision load from the front of the vehicle is input can be subjected to bending deformation with its rear edge as a fulcrum, thereby more effectively absorbing the energy of the collision load from the front of the vehicle.

[0013] In order to solve the above-mentioned problems, the present invention provides a front body structure for a vehicle comprising a bumper fascia provided on a front side of the vehicle, an upper panel provided above the bumper fascia, and an impact absorbing member provided inside the upper panel, the impact absorbing member including a front wall portion extending upwardly of the vehicle, an upper wall portion extending from an upper edge of the front wall portion to the rear of the vehicle, and a rear wall portion extending downwardly of the vehicle from a rear edge of the upper wall portion, each of which extends in the vehicle width direction, and further including a support member that supports the impact absorbing member from below, the support member including an inclined portion extending diagonally downwardly from the position of the lower edge of the rear wall portion of the impact absorbing member to a position spaced downwardly from the lower edge of the front wall portion, 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 absorbing member, and a vertical surface portion extending in the vertical direction of the vehicle is formed on the front edge portion of the support member, and this vertical surface portion is fixed to the bumper member. , which is its characteristic. The present invention thus configured includes an impact absorbing member provided inside the upper panel, and a support member that supports the impact absorbing member from below. The support member that supports the impact absorbing member from below includes an inclined portion that extends obliquely downward from the position of the lower edge of the rear wall portion of the impact absorbing member to a position spaced downward from the lower edge of the front wall portion. Therefore, it is possible to ensure a deformation stroke of the impact absorbing member against a collision load from the front of the vehicle and obliquely above, and further, against a collision load from the front of the vehicle, the collision load is input to the support member and the support member deforms, thereby absorbing the collision energy. As a result, in the present invention, in the event of a pedestrian collision, the collision energy can be absorbed by deformation against a collision load from the front of the vehicle and a collision load from the front of the vehicle and obliquely above the vehicle. Also, According to the present invention configured in this manner, 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 of the support member, thereby more reliably transmitting the load to the support member and promoting its deformation.

[0014] In order to solve the above-mentioned problems, the present invention provides a front body structure for a vehicle comprising a bumper fascia provided on a front side of the vehicle, an upper panel provided above the bumper fascia, and an impact absorbing member provided inside the upper panel, the impact absorbing member including a front wall portion extending upwardly of the vehicle, an upper wall portion extending from an upper edge of the front wall portion to the rear of the vehicle, and a rear wall portion extending downwardly of the vehicle from a rear edge of the upper wall portion, each of which extends in the vehicle width direction, and further including a support member that supports the impact absorbing member from below, the support member including an inclined portion extending diagonally downwardly from the position of the lower edge of the rear wall portion of the impact absorbing member to a position spaced downwardly from the lower edge of the front wall portion, The shock absorbing member and the support member are fixed to an arm portion that extends forward from a frame member that constitutes the vehicle body. , which is its characteristic. The present invention thus configured includes an impact absorbing member provided inside the upper panel, and a support member that supports the impact absorbing member from below. The support member that supports the impact absorbing member from below includes an inclined portion that extends obliquely downward from the position of the lower edge of the rear wall portion of the impact absorbing member to a position spaced downward from the lower edge of the front wall portion. Therefore, it is possible to ensure a deformation stroke of the impact absorbing member against a collision load from the front of the vehicle and obliquely above, and further, against a collision load from the front of the vehicle, the collision load is input to the support member and the support member deforms, thereby absorbing the collision energy. As a result, in the present invention, in the event of a pedestrian collision, the collision energy can be absorbed by deformation against a collision load from the front of the vehicle and a collision load from the front of the vehicle and obliquely above the vehicle. Also, According to the present invention configured in this manner, collision loads from the front and diagonally above the vehicle can be transmitted to the vehicle body via an arm portion extending forward of the vehicle, thereby preventing the load on a pedestrian from becoming too high in the event of a collision.

[0015] In order to solve the above-mentioned problems, the present invention provides a front body structure for a vehicle including a bumper fascia provided on a front side of the vehicle, an upper panel provided above the bumper fascia, and an impact absorbing member provided inside the upper panel, the impact absorbing member including a front wall portion extending upwardly of the vehicle, an upper wall portion extending rearwardly 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, each of which extends in the vehicle width direction. The shock absorbing member has an inclined portion, a central protrusion that is continuous with the forward inclined portion and protrudes upward from the vehicle, and a rear support portion that is continuous with the central protrusion and is formed to be positioned lower than the central protrusion on the rear side of the vehicle, the forward inclined portion has a plurality of holes formed so as to be aligned in the vehicle width direction, and further has a support member that supports the impact absorbing member from below, the support member including an inclined portion that extends diagonally downward from the position of the lower edge of the rear wall portion of the impact absorbing member to a position spaced downward from the lower edge of the front wall portion.

[0016] According to the present invention configured as described above, the vehicle includes an impact absorbing member provided inside the upper panel, and a support member supporting the impact absorbing member from below. The support member supporting the impact absorbing member from below includes an inclined portion that extends obliquely downward from the position of the lower edge of the rear wall portion of the impact absorbing member to a position spaced downward from the lower edge of the front wall portion. Therefore, it is possible to ensure a deformation stroke of the impact absorbing member against a collision load from the front of the vehicle and obliquely above, and further, against a collision load from the front of the vehicle, the collision load is input to the support member and the support member deforms, thereby absorbing the collision energy. As a result, in the present invention, in the event of a pedestrian collision, the impact energy can be absorbed by deformation against a collision load from the front of the vehicle and a collision load from the front of the vehicle and obliquely above the vehicle. Furthermore, the upper wall portion of the impact absorbing member has a forward inclined portion extending in the vehicle width direction, and the forward inclined portion has a plurality of holes formed aligned in the vehicle width direction, so that the impact absorbing member can be effectively deformed in response to a collision load from the front of the vehicle and diagonally above to absorb the collision energy. Also, the upper wall portion has a central protruding portion that is continuous with the forward inclined portion and protrudes upward from the vehicle, so that, for example, when a worker performs maintenance in the engine room, the worker rests his / her weight on the upper panel and the weight is applied to the impact absorbing member, the central protruding portion supports the load, so that the rigidity against a static input load from above the vehicle can be increased. Effect of the Invention

[0017] According to the front body structure of a vehicle of the present invention, in the event of a pedestrian collision, collision energy can be absorbed by deformation against a collision load from the front of the vehicle and a collision load from the front and diagonally above the vehicle. Furthermore, according to the front body structure of a vehicle of the present invention, in the event of a pedestrian collision, the collision energy can be absorbed by deformation in response to a collision load from the front of the vehicle and a collision load from the front of the vehicle and diagonally above, and rigidity can be increased against a static input load from above the vehicle. [Brief description of the drawings]

[0018] [Figure 1] 1 is a perspective view of a front part of a vehicle equipped with a vehicle front body structure according to an embodiment of the present invention, viewed from the right side and diagonally above the vehicle. [Diagram 2] 1 is a perspective view of a front vehicle body structure of a vehicle according to an embodiment of the present invention, viewed from diagonally above and on the right side of the vehicle. [Diagram 3] 1 is a partially sectional perspective view of a front vehicle body structure of a vehicle according to an embodiment of the present invention, viewed diagonally from above and on the left side of the vehicle. [Figure 4] 1 is a partially sectional side view of a front vehicle body structure of a vehicle according to an embodiment of the present invention, as viewed from the left side of the vehicle. [Diagram 5] FIG. 5 is a partially enlarged view showing a part of FIG. 4. [Figure 6] 1 is a perspective view showing a shock absorbing member according to an embodiment of the present invention; [Figure 7] FIG. 2 is a perspective view showing a support member of the impact absorbing member according to the present embodiment. [Figure 8] FIG. 4 is a plan view showing a support member of the impact absorbing member according to the present embodiment. [Figure 9] 1 is a side cross-sectional view showing an example of a deformation state of an impact absorbing member and a support member when a collision load is input from diagonally above and in front of a vehicle equipped with a vehicle front body structure according to the present embodiment. FIG. [Figure 10] 1 is a side cross-sectional view showing an example of a deformation state of a support member when a collision load is input from the front of a vehicle equipped with the vehicle front body structure according to the present embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a front body structure of a vehicle according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0020] First, a vehicle front body structure according to an embodiment of the present invention will be described with reference to Figures 1 and 2. Figure 1 is a perspective view of the front of a vehicle equipped with a vehicle front body structure according to an embodiment of the present invention, as viewed from the right side and diagonally above the vehicle, and Figure 2 is a perspective view of the vehicle front body structure according to this embodiment, as viewed from the right side and diagonally above the vehicle.

[0021] First, as shown in FIG. 1, a vehicle 1 having a vehicle front body structure according to an embodiment of the present invention is provided at its front with a bonnet hood 4 covering an engine compartment 2, a grill upper panel (hereinafter referred to as the upper panel) 6 extending in the vehicle width direction in front of the bonnet hood 4, a bumper fascia 8 provided below the upper panel 6 and on the front side of the vehicle 1, a front grille 10 provided between the upper panel 6 and the bumper fascia 8, headlamp units 12 arranged on both the left and right sides of the front grille 10 and above the bumper fascia 8, and front fenders 14 provided on both the left and right sides of the bonnet hood 4 and on the sides of the vehicle.

[0022] Next, as shown in FIG. 2, the vehicle 1 is provided with, as frame members constituting the vehicle body, a pair of left and right front side frames 16 extending in the fore-and-aft direction of the vehicle in the engine compartment 2, crash cans 18 provided at each front end of the front side frames 16, and bumper reinforcements 20 attached to the front ends of the crash cans and extending in the vehicle width direction. In addition, a pair of left and right apron members 22 extending in the fore-and-aft direction of the vehicle are provided at the front of the vehicle 1 above the engine compartment 2 and on both the left and right sides, and suspension towers 23 are connected to these apron members 22 and the front side frames 16.

[0023] The front end of each apron member 22 on the vehicle front side is curved inward in the vehicle width direction, and these end ends are connected to each other by the shroud upper member 24. Furthermore, connecting members 26 are provided at both ends of the shroud upper member 24 as frame members that constitute the vehicle body, and connect the shroud upper member 24 to the front side frames 16 below it in the up-down direction.

[0024] A radiator (not shown) and the like are provided below the shroud upper member 24 and behind the bumper reinforcement 20 to cool an engine (not shown) with air guided through the front grille 10. The bumper reinforcement 20 is provided with a pair of reinforcing members 28 extending in the vertical direction so as not to impede the inflow of air to the radiator.

[0025] The vehicle 1 also includes a bumper reinforcement 20, and a grill reinforcement 30 attached to a bumper support bracket 66 and a support member 34, which will be described later. The grill reinforcement 30 is a member that mainly supports and reinforces the bumper fascia 8 and the front grill 10. In this embodiment, in particular, the bumper reinforcement 20, the bumper fascia 8, and the grill reinforcement 30 function as bumper members that receive the impact of an obstacle (such as another vehicle or a pedestrian's thigh) from the front of the vehicle, and the upper panel 6 functions as a member that receives the impact of an obstacle (such as a pedestrian's head) from the front of the vehicle and diagonally above.

[0026] Next, the shock absorbing structure of the vehicle front body structure according to this embodiment will be described with reference to Figures 3 to 5. Figure 3 is a partially sectional perspective view of the vehicle front body structure according to this embodiment, seen from the left side of the vehicle and diagonally above, Figure 4 is a partially sectional side view of the vehicle front body structure according to this embodiment, seen from the left side of the vehicle, and Figure 5 is a partially enlarged view showing an enlarged portion of Figure 4. First, as shown in Figures 3 to 5, in this embodiment, an impact absorbing member 32 extending in the vehicle width direction is arranged on the rear side of the grill reinforcement 30 and below the upper panel 6, and also, below this impact absorbing member 32, an impact absorbing support member (hereinafter referred to as "support member") 34 is arranged to support the impact absorbing member 32 and absorb impact as described below.

[0027] Here, the impact absorbing member 32 is a resin member, and its main role is to receive the load applied from the upper panel 6 during a frontal collision in which a collision load is applied from the front of the vehicle and diagonally above, and to deform itself to absorb the collision energy. On the other hand, the support member 34 is a resin member, and firstly, has a role of supporting the upper part of the grill reinforcement 30 so that the grill reinforcement 30 does not become displaced so as to collapse toward the front of the vehicle. Secondly, the support member 34 has a role of supporting the impact absorbing member 32 from below. Thirdly, the support member 34 has a role of deforming itself to absorb the impact energy during a front collision in which a collision load is applied from the direction in front of the vehicle. Fourthly, the support member 34 has a role of ensuring the deformation stroke of the impact absorbing member 32 itself described above during a front collision in which a collision load is applied from the front of the vehicle and diagonally above.

[0028] Next, the configuration and mounting structure of the impact absorbing member 32 and the support member 34 will be described with reference to Figures 5 to 8. Figure 6 is a perspective view showing the impact absorbing member according to this embodiment, Figure 7 is a perspective view showing the support member of the impact absorbing member according to this embodiment, and Figure 8 is a plan view showing the support member of the impact absorbing member according to this embodiment. First, the configuration of the impact absorbing member 32 will be described with reference to FIGS. As shown in Figures 5 and 6, the impact absorbing member 32 is mainly composed of a front mounting portion 36 extending in the vehicle width direction along its front edge, a front wall portion 38 extending from the rear edge of the front mounting portion 36 toward the top of the vehicle, a front inclined portion 40 extending diagonally from the upper edge of the front wall portion 38 toward the rear and top of the vehicle, a central protruding support portion 42 formed on the rear edge of the front inclined portion 40 and protruding above the vehicle, a rear support portion 44 located below the vehicle than the central protruding support portion 42 and extending in a plane from the rear end edge of the central protruding support portion 42 toward the rear of the vehicle, a rear wall portion 46 extending below the vehicle from the rear edge of the rear support portion 44, and a rear mounting portion 48 extending from the lower edge of the rear wall portion 46 toward the rear of the vehicle.

[0029] Of these portions, 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 this upper wall portion 50 mainly receives the collision load, which is a dynamic load applied from the front of the vehicle and diagonally upward, and also receives the weight of the worker, which is a static load, and supports the worker when the worker accesses the engine room 2.

[0030] Here, a plurality of rectangular gaps 40a are formed aligned in the vehicle width direction in the front inclined portion 40 of the upper wall portion 50. In this embodiment, these gaps 40a promote deformation of the impact absorbing member 32 itself when a collision load is applied from the front and diagonally above the vehicle, thereby reliably absorbing the collision energy and reducing the impact on pedestrians. On the other hand, the central protruding support portion 42 has a top surface portion 42a formed at its top which extends in an almost flat shape, and this central protruding support portion 42 and the rear support portion 44 are mainly used to ensure the rigidity required to support a worker resting his / her body on the support portion.

[0031] Next, the configuration of the support member 34 will be described with reference to FIGS. As shown in Figures 5, 7 and 8, the support member 34 is mainly composed of a front mounting portion 52 extending in the vehicle width direction along its front edge portion, a vertical surface portion 54 extending downwardly from the rear edge portion of the front mounting portion 52, a first inclined portion 56 extending obliquely from the lower edge portion 54a toward the rear and upward of the vehicle at both left and right ends of the vertical surface portion 54 in the vehicle width direction, a second inclined portion 58 extending obliquely from the up-down intermediate portion 54b toward the rear and upward of the vehicle at the center of the vertical surface portion 54 in the vehicle width direction, two intermediate reinforcing portions 60 extending between the first inclined portion 56 and the second inclined portion 58, and a rear mounting portion 62 extending in a plane from the rear edge portion of the first inclined portion 56 and the rear edge portion of the second inclined portion 58 toward the rear of the vehicle and in the vehicle width direction.

[0032] Notches 56a are formed on both the left and right edges of the second inclined portion 58, and when a collision load is input from the front of the vehicle, as described below, these notches 56a become the starting points for deformation of the support member 34 itself.

[0033] Next, the mounting structure of the shock absorbing member 32 and the support member 34 on the vehicle body side will be described with reference to FIGS. As shown in Figures 3 to 5, the front mounting portions 36, 52 of the shock absorbing member 32 and the support member 34 are attached to the upper part of the grill reinforcement 30 by pin members, while the rear mounting portions 48, 62 of the shock absorbing member 32 and the support member 34 are attached to the upper part of the shroud member 24 by pin members 64.

[0034] Here, in this embodiment, as shown in Fig. 3, a bumper support bracket 66 that supports the grill reinforcement 30 on the vehicle body side is provided below the support member 34. Also, as shown in Fig. 4, an arm member 68 extending toward the front of the vehicle from an upper portion is attached to the left and right connecting members 26 (only the connecting member 26 on the right side of the vehicle is shown in Fig. 4) that connect the shroud upper member 24 and the front side frame 16 in the vertical direction. 3 to 5, the rear mounting portion 62 of the support member 34 is attached to the tip portions of the left and right arm members 68 by pin members 65 via a bumper support bracket 66. Furthermore, in this embodiment, the rear mounting portion 48 of the impact absorbing member 32 is attached to the rear mounting portion 62 of the support member 34 by using the above-mentioned pin member 64. In this embodiment, these mounting structures allow both the impact absorbing member 32 and the support member 34 to be fixed to the arm members 68.

[0035] Next, as shown in FIG. 5, the support member 34 is positioned so that its vertical surface portion 54 abuts in a planar manner against a part of the grill reinforcement 30 along the vehicle width direction, and as shown in FIG. 3, in addition to the front mounting portion 52, the vertical surface portion 54 is also attached to the upper part of the grill reinforcement 30 by a pin member 70.

[0036] 4 and 5, the front inclined portion 40 of the impact absorbing member 32 is disposed adjacent to the inner surface of the upper panel 6 across the vehicle width direction, so that when a pedestrian's head or the like collides with the upper panel 6, the impact absorbing member 32 receives the impact load from the front of the vehicle and diagonally above. In this embodiment, a space is formed below the impact absorbing member 32 to ensure a deformation stroke of the impact absorbing member 32 due to such a collision load. The upper panel 6 is attached to the rear support portion 44 of the impact absorbing member 32 by a pin member 72.

[0037] 3 to 5, the support member 34 has a first inclined portion 56 that extends obliquely toward the rear and upper part of the vehicle from the up-down intermediate portion 54b of the vertical surface portion 54, as described above. With this first inclined portion 56 and the above-described mounting structure, in this embodiment, the support member 34 has an inclined portion (first inclined portion 56) that extends obliquely downward and forward from the position of the lower edge of the rear wall portion 46 of the impact absorbing member 32 to a position spaced downward from the lower edge of the front wall portion 38 of the impact absorbing member 32. As shown particularly in FIG. 5, the second inclined portion 58 of the support member 34 also has an inclined portion (second inclined portion 58) that extends diagonally downward and forward from the position of the lower edge of the rear wall portion 46 of the impact absorbing member 32 to a position spaced downward from the lower edge of the front wall portion 38 of the impact absorbing member 32. In this embodiment, with this structure, a space is formed below the impact absorbing member 32 such that the deformation stroke of the impact absorbing member can be secured.

[0038] FIG. 9 shows the deformation state of the impact absorbing member 32 and the support member 34 at the later stage of a collision when an impact body simulating a pedestrian's head collides with the upper panel 6 and a collision load is input to the impact absorbing member 32 and the support member 34 from the front of the vehicle and diagonally above. It can be seen that the impact absorbing member 32 is deformed so as to be almost completely crushed.

[0039] On the other hand, Fig. 10 shows the state of deformation of the support member 34 when the thigh of a pedestrian collides with the vehicle 1 from the front direction. In Fig. 10, the support member 34 before deformation is shown by a virtual line, and the support member 34 after deformation is shown 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. 10, the load L is transmitted to the vertical surface portion 54 (see Fig. 5) of the support member 34 mainly via the bumper reinforcement 20 and the grille reinforcement 30, and the support member 34 is deformed. Since the rear attachment portion 62 of the support member 34 is attached to the vehicle body, as shown in Fig. 10, the support member 34 can be deformed so as to bend with the rear attachment portion 62 as a fulcrum (the lower edge portion of the rear wall portion 46 of the impact absorbing member 32 as a fulcrum).

[0040] Next, the effects of the vehicle front body structure according to the embodiment of the present invention will be described. First, the front body structure of the vehicle 1 according to this embodiment includes the impact absorbing member 32 provided inside the upper panel 6 and the support member 34 that supports the impact absorbing member 32 from below. The support member 34 includes a first inclined portion 56 (and a second inclined portion 58), and the first inclined portion 56 (and the second inclined portion 58) extends obliquely downward and forward from the position of the lower edge of the rear wall portion 46 of the impact absorbing member 32 to a position spaced downward from the lower edge of the front wall portion 38. Therefore, according to this embodiment, it is possible to ensure a deformation stroke of the impact absorbing member 32 against a collision load from the front and obliquely above the vehicle, and further, against a collision load from the front of the vehicle, the collision load is input to the support member 34 and the support member 34 is deformed, so that the collision energy can be absorbed. As a result, in this embodiment, in the event of a pedestrian collision, the collision energy can be absorbed by deformation against a collision load from the front of the vehicle and a collision load from the front and obliquely above the vehicle.

[0041] Furthermore, according to this embodiment, the first inclined portion 56 (and the second inclined portion 58) of the support member 34 has a rear mounting portion (rear edge portion) 62 to which the lower edge portion of the rear wall portion 46 of the impact absorbing member 32 is attached, and since the rear mounting portion 62 of the first inclined portion 56 of the support member 34 is connected to the vehicle body, bending deformation can be caused with the rear mounting portion 62 as a fulcrum in the support member 34 to which a collision load from the front of the vehicle is input. Therefore, the energy of the collision load from the front of the vehicle can be absorbed more effectively.

[0042] Furthermore, according to this embodiment, the first inclined portion 56 (and the second inclined portion 58) of the support member 34 has a front edge portion formed below the lower edge portion of the front wall portion 38 of the impact absorbing member 32, and a vertical surface portion 54 extending in the vertical direction of the vehicle is formed at the front edge portion of this support member 34, and this vertical surface portion 54 is fixed to the grill reinforcement (bumper member) 30.Since the collision load from the front of the vehicle input through the grill reinforcement 30 is received by the vertical surface portion 54 of the front edge portion of the support member 34, the load can be more reliably transmitted to the support member 34 and its deformation can be promoted.

[0043] Furthermore, according to this embodiment, the impact absorbing member 32 and the support member 34 are fixed to the arm member 68 extending forward of the vehicle from the connecting member 26, which is a frame member that constitutes the vehicle body. Therefore, the collision load from the front of the vehicle and diagonally above is transmitted to the vehicle body via the arm member 68 extending forward of the vehicle, thereby preventing the load on the pedestrian from becoming too high in the event of a collision.

[0044] The front body structure of the vehicle 1 according to this embodiment includes the impact absorbing member 32 provided inside the upper panel 6 and the support member 34 supporting the impact absorbing member 32 from below. The support member 34 includes a first inclined portion 56, which extends obliquely downward and forward from the position of the lower edge of the rear wall portion 46 of the impact absorbing member 32 to a position spaced downward from the lower edge of the front wall portion 38. Therefore, it is possible to ensure a deformation stroke of the impact absorbing member 32 against a collision load from the front and obliquely above the vehicle, and further, the impact load from the front of the vehicle is input to the support member 34 and the support member 34 is deformed, so that the impact energy can be absorbed. As a result, in this embodiment, in the event of a pedestrian collision, the impact energy can be absorbed by deformation against the impact load from the front of the vehicle and the impact load from the front and obliquely above the vehicle. Furthermore, the upper wall portion 50 of the impact absorbing member 32 has a front inclined portion 40, a central protruding support portion 42 that is continuous with the front inclined portion 40 and protrudes upward from the vehicle, and a rear support portion 44 that is continuous with the central protruding support portion 42 and is formed to be located on the vehicle rear side lower than the central protruding support portion 42, and the front inclined portion 40 has a plurality of voids (holes) 40a formed to be aligned in the vehicle width direction, so that the impact absorbing member 32 can be effectively deformed against a collision load from the front and diagonally above the vehicle to absorb the collision energy. Furthermore, the upper wall portion 50 has the central protruding support portion 42 that is continuous with the front inclined portion 40 and protrudes upward from the vehicle, so that, for example, when a worker performs maintenance in the engine room, the worker rests his / her weight on the upper panel 6 and the weight is applied to the impact absorbing member 32, so that the central protruding support portion 42 supports the load together with the rear support portion 44, thereby increasing the rigidity against a static input load from above the vehicle. [Explanation of symbols]

[0045] 1 vehicle 2. Engine Room 6 Upper Panel 8 Bumper fascia 10 Front Grill 24 Shroud upper member 26 Connecting members 30 Grill Reinforcement 32 Shock absorbing materials 34 Shock absorbing support member (support member) 38 Front wall 40 Front slope 40a Gap (hole) 42 Center protruding support part (center protruding part) 42a Top part 44 Rear support part 48 Rear mounting portion (rear edge of impact absorbing member) 46 Rear wall 50 Upper wall 54 Vertical section 56 1st slope part 58 2nd slope part 62 Rear mounting portion (rear edge portion of support member) 68 Arm member

Claims

1. A bumper fascia provided on the front of the vehicle; an upper panel provided above the bumper fascia; A front body structure of a vehicle including an impact absorbing member provided inside the upper panel, The impact absorbing member includes a front wall portion extending upwardly of the vehicle, an upper wall portion extending from an upper edge portion of the front wall portion toward the rear of the vehicle, and a rear wall portion extending downwardly of the vehicle from a rear edge portion of the upper wall portion, each of which extends in a vehicle width direction, Further, a support member is provided that supports the shock absorbing member from below, the support member including an inclined portion that extends obliquely downward from a position of a lower edge portion of the rear wall portion of the shock absorbing member to a position spaced downward from the lower edge portion of the front wall portion, a rear edge portion of the inclined portion of the support member to which a lower edge portion of the rear wall portion of the impact absorbing member is attached, and the rear edge portion of the inclined portion of the support member is connected to the vehicle body,

2. A bumper fascia provided at the front of the vehicle; an upper panel provided above the bumper fascia; A front body structure of a vehicle including an impact absorbing member provided inside the upper panel, The impact absorbing member includes a front wall portion extending upwardly of the vehicle, an upper wall portion extending from an upper edge portion of the front wall portion toward the rear of the vehicle, and a rear wall portion extending downwardly of the vehicle from a rear edge portion of the upper wall portion, each of which extends in a vehicle width direction, Further, a support member is provided that supports the shock absorbing member from below, the support member including an inclined portion that extends obliquely downward from a position of a lower edge portion of the rear wall portion of the shock absorbing member to a position spaced downward from the lower edge portion of the front wall portion, a front body structure of a vehicle, characterized in that 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 absorbing member, and a vertical surface portion extending in the vertical direction of the vehicle is formed on the front edge portion of the support member, and this vertical surface portion is fixed to a bumper member.

3. A bumper fascia provided at the front of the vehicle; an upper panel provided above the bumper fascia; A front body structure of a vehicle including an impact absorbing member provided inside the upper panel, The impact absorbing member includes a front wall portion extending upwardly of the vehicle, an upper wall portion extending from an upper edge portion of the front wall portion toward the rear of the vehicle, and a rear wall portion extending downwardly of the vehicle from a rear edge portion of the upper wall portion, each of which extends in a vehicle width direction, Further, a support member is provided that supports the shock absorbing member from below, the support member including an inclined portion that extends obliquely downward from a position of a lower edge portion of the rear wall portion of the shock absorbing member to a position spaced downward from the lower edge portion of the front wall portion, A front body structure for a vehicle, characterized in that the impact absorbing member and the support member are fixed to an arm portion extending forward of the vehicle from a frame member constituting the vehicle body.

4. A bumper fascia provided at the front of the vehicle; an upper panel provided above the bumper fascia; A front body structure of a vehicle including an impact absorbing member provided inside the upper panel, The impact absorbing member includes a front wall portion extending upwardly of the vehicle, an upper wall portion extending from an upper edge portion of the front wall portion toward the rear of the vehicle, and a rear wall portion extending downwardly of the vehicle from a rear edge portion of the upper wall portion, each of which extends in a vehicle width direction, The upper wall portion of the impact absorbing member has a forward inclined portion extending in the vehicle width direction, a central protruding portion that is continuous with the forward inclined portion and protrudes upward of the vehicle, and a rear support portion that is continuous with the central protruding portion and is formed to be located on the vehicle rear side lower than the central protruding portion, and a plurality of holes are formed in the forward inclined portion so as to be aligned in the vehicle width direction, The front body structure of a vehicle further comprises a support member that supports the impact absorbing member from below, the support member including an inclined portion extending diagonally downward from the position of the lower edge of the rear wall portion of the impact absorbing member to a position spaced downward from the lower edge of the front wall portion.

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