JP2014189241A - Vehicle front structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle front structure that can satisfy required light and heavy crash performances even if a vehicle has a relatively low vehicle height.SOLUTION: The vehicle front structure comprises: a pair of right and left side frames extending in a longitudinal direction and having a plate-like top surface part; a bumper beam disposed in front of the side frames and extending in a horizontal direction; and a stay extending forward from front ends of the side frames and having a plate-like top surface part to support the bumper beam. In the vehicle front structure, right and left inner sides of the top surface part of the stay are disposed higher than the top surface part of the side frames, right and left outer sides of the top surface part of the stay almost coincide with the height of the top surface part of the side frames, and a support member is provided at front ends on right and left inner sides of the top surface part of the side frames so as to resist against a load that is input backward from the stay.

Description

  The present invention relates to a vehicle body front part structure used for vehicle types having different vehicle heights.

  In general, a bumper beam constituting a bumper is disposed at the front of the automobile vehicle. The bumper beam extends in the left-right direction, and is fixed to the front end of each side frame extending in the front-rear direction via a stay (see, for example, Patent Document 1). In the event of a large vehicle collision, a relatively large load is input to the entire bumper beam, and the bumper beam, each stay, and each side frame are deformed to protect the vehicle cabin. Further, in the case of a light vehicle collision, a relatively small load is input to a predetermined height at the center of the left and right of the bumper beam, and the side frames are prevented from being deformed by the deformation of the bumper beam and each stay.

JP2012-6513A1

  2. Description of the Related Art In recent years, in automobile vehicles, the sharing of vehicle bodies with different vehicle types has progressed, and the same vehicle body may be used with vehicle types having different vehicle heights. However, in a vehicle type with a relatively low vehicle height, the input of a light collision is shifted upward, so that the load at the time of the collision acts not on the entire bumper beam but on the upper side of the bumper beam. As a result, there is a possibility that the upper surface portion of each stay may be deformed by the force in the direction of entering the collision object on the bumper beam.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle body that can satisfy the required light collision performance and large collision performance even if the vehicle has a relatively low vehicle height. It is to provide a front structure.

  According to the present invention, a pair of left and right side frames extending in the front-rear direction and having a plate-like upper surface portion, a bumper beam disposed in front of the side frame and extending in the left-right direction, and extending forward from the front end of the side frame. A vehicle body front structure having a plate-like upper surface portion and a stay for supporting the bumper beam, the left and right inner sides of the upper surface portion of the stay being arranged higher than the upper surface portion of the side frame, The left and right outer sides of the upper surface portion of the stay are substantially coincident with the height of the upper surface portion of the side frame, and support members that resist load input from the stay to the rear are provided at the left and right inner front ends of the upper surface portion of the side frame. A vehicle body front structure is provided.

According to this vehicle body front structure, the required light collision performance and large collision performance can be satisfied regardless of the height of the vehicle.
In a vehicle type with a relatively low vehicle height, the input of a light collision is shifted upward, so that the load at the time of the collision acts not on the entire bumper beam but on the upper side of the bumper beam. In a light collision, the load at the time of collision acts on the left and right center side of the bumper beam. Then, at the time of a light collision, a load offset upward on the left and right sides acts on the stay via the bumper beam.
Here, since the upper surface portions on the left and right inner sides of the stay are formed higher than the upper surface portions of the side frames, the input load from the bumper beam can be accurately received by the upper surface portion of the stay. At this time, since the upper surface portion of the stay is higher than the upper surface portion of the side frame, the upper surface portion of the side frame cannot receive input from the upper surface portion of the stay, but it is provided on the upper surface portions on the left and right inner sides of the side frame. By the support member formed, it is possible to resist load input from the upper surface of the stay to the rear. Thereby, it is possible to prevent the bumper beam and the upper side of the stay from being deformed excessively, and to prevent the light collision damage from reaching the side frame side.
In the case of a vehicle model having a relatively high vehicle height, there is no particular problem during a light collision.
On the other hand, in the case of a large collision, even if the vehicle height is relatively low, the load at the time of the collision acts on the entire bumper beam and the stay is connected to the entire stay via the bumper beam, as in the case of a vehicle with a relatively high vehicle height. Load is applied. Even in the case of a large collision, the left and right inner sides of the stay can resist load input from the upper surface portion of the stay to the rear by the support members provided on the upper surface portions on the left and right inner sides of the side frame. Further, regarding the left and right outer sides of the stay, since the upper surface portion of the stay is substantially coincident with the height of the upper surface portion on the left and right outer sides of the side frame, it is possible to resist load input to the rear by the upper surface portion of the side frame. . As a result, the stress does not concentrate on specific portions of the stay and the side frame, and the stay and the side frame can be uniformly crushed and the energy at the time of a large collision can be absorbed accurately.

  In the vehicle body front structure, it is preferable that the upper surface portion of the side frame is disposed substantially horizontally, and the upper surface portion of the stay is formed to be inclined so as to descend from the left and right inner sides toward the left and right outer sides.

  According to this vehicle body front structure, by tilting the upper surface of the stay in the left-right direction, it is possible to moderate the change in the cross section in the left-right direction and avoid stress concentration.

  In the vehicle body front structure, the bumper beam has a plate-like upper surface portion, the upper surface portion of the stay is connected to the upper surface portion of the bumper beam, and the upper surface portion of the bumper beam is It is preferable to be formed so as to be inclined downward from the left and right inner sides to the left and right outer sides so that the shapes in front view substantially coincide with each other in the direction.

  According to this vehicle body front structure, the front view shapes of the upper surface portions of the bumper beam and the stay substantially coincide with each other in the left-right direction, so that the input load applied to the bumper beam can be accurately transmitted to the stay side.

  In the vehicle body front structure, the heights of the rear end of the upper surface portion of the stay and the front end of the upper surface portion of the support member and the front end of the upper surface portion on the left and right outer sides of the side frame are horizontal in a front view. It is preferable to configure so that they substantially coincide with each other.

  According to this vehicle body front part structure, a load can be more accurately transmitted from the upper surface of the stay to the upper surface of the side frame and the support member.

  In the vehicle body front part structure, a flange extending at least upward from a rear end of the upper surface portion of the stay, a flange extending at least upward from a front end of the upper surface portion of the side frame, and the flanges of the stay and the side frame An inner fastening member that is inserted through the upper left and right sides of the stay and the side frame; and an outer fastening member that is inserted through the flanges of the stay and the side frame at the upper left and right sides of the stay and the side frame. And the height of the inner fastening member may be higher than that of the outer fastening member.

  According to the present invention, the required light collision performance and large collision performance can be satisfied even for a vehicle type having a relatively low vehicle height. Accordingly, it is possible to reduce the manufacturing cost by sharing the vehicle body.

FIG. 1 is an external perspective view of a vehicle body front structure showing an embodiment of the present invention. FIG. 2 is a partially enlarged perspective view of the vehicle body front structure. FIG. 3 is a front view of the bumper beam and the stay. 4 is a cross-sectional view taken along line AA in FIG. 5 is a cross-sectional view taken along the line BB in FIG. FIG. 6 is an explanatory diagram showing the action during a light collision. FIG. 7 is an explanatory diagram showing the action during a major collision.

  1 to 7 show an embodiment of the present invention. FIG. 1 is an external perspective view of a vehicle body front structure, FIG. 2 is a partially enlarged perspective view of the vehicle body front structure, and FIG. 3 is a bumper beam and stay. 4 is a cross-sectional view taken along the line AA in FIG. 3, FIG. 5 is a cross-sectional view taken along the line BB in FIG. 3, FIG. 6 is an explanatory view showing the action during a light collision, and FIG. It is explanatory drawing shown.

  As shown in FIG. 1, the vehicle body 1 is configured by, for example, collecting panel-like members obtained by press-molding steel plates and joining them by spot welding or the like. The vehicle body 1 includes a pair of left and right side frames 10 that extend in the front-rear direction, a bumper beam 20 that is disposed in front of each side frame 10 and extends in the left-right direction, and a stay 30 that extends forward from the front end of each side frame 10 and supports the bumper beam 20. And. The vehicle body 1 is shared by a vehicle type having a relatively high vehicle height and a vehicle type having a relatively low vehicle height.

  The vehicle body 1 also includes a toe board 40 that partitions the vehicle compartment and the engine room, and a pair of left and right wheel aprons 50 that partition the front wheel side and the engine room. The vehicle body 1 further includes a radiator lower support 60 that connects the front end sides of the side frames 10 and extends to the left and right, a pair of left and right radiator panels 70 that extend upward from both ends of the radiator lower support 60, and the upper ends of the radiator panels 70. A radiator upper support 80 that is connected and extends to the left and right, and a pair of left and right headlight supports 90 that extend obliquely rearwardly from both ends of the radiator upper support 80 to the left and right sides.

  As shown in FIG. 2, each side frame 10 is formed so that the cross section in front view is a rectangular closed cross section. In the present embodiment, each side frame 10 is configured by joining an inner panel 11 and an outer panel 12. In addition, a rain reinforcement 13 as a support member that resists load input from the stay 30 to the rear is fixed to the upper side of each side frame 10.

  The inner panel 11 extends in the front-rear direction and is formed in a substantially horizontal upper surface portion 11a, an inner surface portion 11b extending downward from the inner end in the left-right direction of the upper surface portion 11a, and a lower surface portion extending from the lower end of the inner surface portion 11b to the left and right outer sides. 11c. The inner panel 11 includes an upper joint flange portion 11d that extends upward from the left and right outer ends of the upper surface portion 11a, and a lower joint flange portion 11e that extends downward from the left and right outer ends of the lower surface portion 11c. Yes. Furthermore, the inner panel 11 extends downward from the front end of the upper surface end portion 11a, the upper front end flange portion 11f extending upward from the front end of the upper surface portion 11a, the inner front end flange portion 11g extending inward in the left-right direction from the front end of the inner surface portion 11b. And a lower front end flange portion 11h. Further, as shown in FIG. 4, an upper inner attachment hole 11k is formed in the upper front end flange portion 11f, and a lower inner attachment hole 11l is formed in the lower front end flange portion 11h.

  As shown in FIG. 5, the outer panel 12 extends in the front-rear direction and is substantially horizontally formed with an upper surface portion 12 a, an outer surface portion 12 b extending downward from the outer end in the left-right direction of the upper surface portion 12 a, and left and right from the lower end of the outer surface portion 12 b. And a lower surface portion 12c extending inward. Further, the outer panel 12 has an upper joint flange portion 12d extending upward from the left and right inner end of the upper surface portion 12a, and a lower joint flange portion 12e extending downward from the left and right inner end of the lower surface portion 12c. . Further, on the front side of the outer panel 12, the vertical dimension of the outer surface portion 12b decreases toward the front end, and an upper slope portion 12i is formed between the outer surface portion 12b and the upper surface portion 12a, and the outer surface portion 12b and the lower surface portion 12c A lower slope 12j is formed therebetween. Furthermore, the outer panel 12 includes an upper front end flange portion 12f extending upward from the front end of the upper surface portion 12a, an outer front end flange portion (not shown) extending outward from the front end of the outer surface portion 12b in the left-right direction, and a front end of the lower surface portion 12c. And a lower front end flange portion 12h extending downward. Further, an upper outer mounting hole 12k is formed in the upper front end flange portion 12f, and a lower outer mounting hole 121 is formed in the lower front end flange portion 12h.

  As shown in FIG. 2, the rain reinforcement 13 includes an upper surface connection portion 13a formed along the upper surface portion 11a of the inner panel 11, and an upper surface portion 13b extending obliquely upward from the upper surface connection portion 13a to the front. Front flange portion 13c extending upward from the front end of upper surface portion 13b, upper flange portion 13d extending upward from the left and right outer ends of upper surface portion 13b, inner surface portion 13e extending downward from the left and right inner ends of upper surface portion 13b, and inner surface portion And an inner flange portion 13f extending inward from the front end of 13e. The upper surface connection portion 13a is the upper surface portion 11a of the inner panel 11, the front end flange portion 13c is the upper front end flange portion 11f of the inner panel 11, the upper flange portion 13d is the upper joint flange portion 11d of the inner panel 11, and the inner surface portion 13e is The inner surface portion 11b and the inner flange portion 13f of the inner panel 11 are provided so as to overlap with the inner front end flange portion 11g of the inner panel 11, and are fixed by welding or the like. Further, the upper surface portion 13b is formed to be inclined so as to descend from the left and right inner sides toward the left and right outer sides. As shown in FIG. 4, a mounting hole 13 g corresponding to the upper inner mounting hole 11 k of the side frame 20 is formed in the front end flange portion 13 c.

  Each side frame 10 has a closed cross section by joining the upper joining flanges 11d and 12d and the lower joining flanges 11e and 12e of the inner panel 11 and the outer panel 12. The upper surface portions 11a and 12a of the inner panel 11 and the outer panel 12 have the same height, and the upper surfaces of the side frames 20 are disposed substantially horizontally as a whole.

  As shown in FIG. 1, the bumper beam 20 is formed to be curved so that the center portion projects forward from the end portions in the left-right direction. As shown in FIGS. 4 and 5, the bumper beam 20 is formed such that a cross section in a side view is a closed cross section. In the present embodiment, the bumper beam 20 is configured by joining a front panel 21 and a rear panel 22.

  As shown in FIGS. 4 and 5, the front panel 21 includes a first front surface portion 21 a that extends in the left-right direction and is substantially vertical, and a first upper surface portion 21 b that extends rearward from the upper end of the first front surface portion 21 a. And a first lower surface portion 21c extending rearward from the lower end of the first front surface portion 21a. The front panel 21 includes a flange portion 21d extending upward from the rear end of the first upper surface portion 21b, and a connection portion 21e extending downward from the rear end of the first lower surface portion 21c. Furthermore, the front panel 21 connects the second front surface portion 21f formed substantially vertically with a space below the first front surface portion 21a, the upper end of the second front surface portion 21f, and the lower end of the connection portion 21e. A second upper surface portion 21g extending to the rear, and a second lower surface portion 21h extending rearward from the lower end of the second front surface portion 21f. The first upper surface portion 21b, the first lower surface portion 21c, the second upper surface portion 21g, and the second lower surface portion 21h are not formed strictly horizontally, but are slightly inclined from the horizontal direction. .

  As shown in FIGS. 4 and 5, the rear panel 22 extends in the left-right direction and is formed substantially vertically, a first rear surface portion 22a, a first upper surface portion 22b extending forward from the upper end of the first rear surface portion 22a, A first lower surface portion 22c extending rearward from the lower end of the first rear surface portion 22a. The rear panel 22 includes a flange portion 22d that extends upward from the front end of the first upper surface portion 22b, and a connection portion 22e that extends downward from the rear end of the first lower surface portion 22c. Further, the rear panel 22 connects the second rear surface portion 22f formed substantially vertically with a space below the first rear surface portion 22a, the upper end of the second rear surface portion 22f, and the lower end of the connection portion 22e to the front and rear. It has a second upper surface portion 22g that extends and a second lower surface portion 22h that extends forward from the lower end of the second rear surface portion 22f. Note that the first upper surface portion 22b, the first lower surface portion 22c, the second upper surface portion 22g, and the second lower surface portion 22h are not strictly formed horizontally, but are slightly inclined.

  In the present embodiment, the front panel 21 and the rear panel 22 are joined by the flange portions 21d and 22d and the second lower surface portions 21h and 22h. Thereby, a closed space 23 is formed between the front panel 21 and the rear panel 22. The cross section of the bumper beam 20 is not the same across the left and right, and the shape of the closed space 23 changes in the left-right direction.

  Each stay 30 is formed so that the cross section in front view is a rectangular closed cross section. In the present embodiment, each stay 30 is configured by joining a lower panel 31 and an upper panel 32. Each stay 30 has a connection panel 33 for connecting to each flange portion 11f, 11g, 11h, 12f, 12h of the side frame 20 at the front end.

  As shown in FIGS. 4 and 5, the lower panel 31 includes a lower surface portion 31a formed substantially horizontally, an inner surface portion 31b extending upward from the left and right inner ends of the lower surface portion 31a, and upward from the left and right outer ends of the lower surface portion 31b. And an outer surface portion (not shown) extending to the front. The lower panel 31 includes an inner flange portion that extends outward from the upper end of the inner surface portion 31b and an outer flange portion that extends outward from the upper end of the outer surface portion 31c.

  As shown in FIGS. 4 and 5, the upper panel 32 includes an upper surface portion 32a and a flange portion 32b extending upward from the front end of the upper surface portion 32a. The upper surface portion 32a is formed to be inclined so as to descend from the left and right inner sides toward the left and right outer sides. The rear end of the upper surface portion 32a substantially coincides with the height of the front end of the upper surface portion 13b of the rain reinforcement 13 and the front end of the upper surface portion 12 of the outer panel 12 positioned on the left and right outer sides of the side frame 10 in the left-right direction when viewed from the front. It is configured as follows. The first upper surface portion 21b and the second upper surface portion 22b of the bumper beam 20 are inclined so as to descend from the left and right inner sides to the left and right outer sides so that the shape of the upper surface portion 32a of the upper panel 32 substantially coincides with the upper surface portion 32a in the left and right directions. Is formed. The upper surface portion 32a is connected to the inner flange portion and the outer flange portion of the lower panel 31 by welding. Further, the rear side of the upper surface portion 32a is overlaid on the first rear surface portion 22a of the rear panel 22 of the bumper beam 20, and is connected to the first rear surface portion 22a by welding or the like. The flange portion 32b is formed with an inner attachment hole 32c corresponding to the upper inner attachment hole 11k of the side frame 20, and an outer attachment hole 32d corresponding to the upper outer attachment hole 12k.

  As shown in FIG. 4, the left and right inner sides of the upper surface portion 32 a of the upper panel 32 are disposed higher than the upper surface portion 11 a of the side frame 20. On the other hand, as shown in FIG. 5, the left and right outer sides of the upper surface portion 32 a of the upper panel 32 substantially coincide with the height of the upper surface portion 12 a of the side frame 20.

  The connection panel 33 is formed in a quadrangular shape when viewed from the front, and comes into contact with the flange portions 11f, 11g, 11h, 12f, and 12h of the side frame 20. The connection panel 33 includes an upper inner mounting hole 33a corresponding to the upper inner mounting hole 11k of the side frame 20, an upper outer mounting hole 33b corresponding to the upper outer mounting hole 12k, and a lower inner mounting corresponding to the lower inner mounting hole 11l. A hole 33c and a lower outer mounting hole 33d corresponding to the lower outer mounting hole 121 are formed.

  In the vehicle body front structure configured as described above, the bumper beam 20 is detachably fixed using the side frame 10 and a plurality of bolts 34 as fastening members via the stay 30. Thereby, when the bumper beam 20 side is damaged during a light collision, the bumper beam 20 side can be repaired without any influence on the side frame 10 side by replacing the bumper beam 20 side with a new one.

  In this embodiment, as shown in FIGS. 4 and 5, the attachment hole 13 g of the rain reinforcement 13 of the side frame 10, the upper inner attachment hole 11 k of the inner panel 11 of the side frame 10, and the connection panel of the stay 30 The upper inner mounting hole 33a of 33 and the inner mounting hole 32c of the upper panel 32 of the stay 30 are fixed by bolts 34 and nuts. Further, the outer side mounting holes 12k of the outer panel 12 of the side frame 10, the upper outer mounting holes 33b of the connection panel 33 of the stay 30, and the outer mounting holes 32b of the upper panel 32 of the stay 30 are fixed by bolts 34 and nuts. The Further, the lower inner mounting hole 11l of the inner panel 11 of the side frame 10 and the lower inner mounting hole 33c of the connection panel 33 of the stay 30 are fixed by bolts 34 and nuts. Further, the lower outer mounting hole 12l of the outer panel 12 of the side frame 10 and the lower outer mounting hole 33d of the connection panel 33 of the stay 30 are fixed by bolts 34 and nuts.

  Here, as shown in FIG. 3, the upper inner mounting hole 11 k of the side frame 10 and the upper inner mounting hole 33 a of the connection panel 33 of the stay 30 are the upper outer mounting hole 12 k of the side frame 10 and the upper outer mounting of the stay 30. It is set higher than the hole 33b. That is, the height of the bolt 34 inserted through each upper inner attachment hole 11k, 33a is higher than the bolt 34 inserted through each upper outer attachment hole 12k, 33b. Note that notches 24 are formed in portions of the flange portions 21d and 22d of the bumper beam 20 that overlap the mounting holes 33a and 33b in a front view.

According to the vehicle body front part structure configured as described above, there is a demand even if the vehicle body 1 such as each side frame 10 used for a vehicle type having a relatively high vehicle height is used for a vehicle type having a relatively low vehicle height. Satisfying light and large collision performance.
As shown in FIG. 6, in a vehicle type with a relatively low vehicle height, the input of a light collision shifts upward, so that the load at the time of the collision acts not on the entire bumper beam 20 but on the upper side of the bumper beam 20. It becomes. In a light collision, the load at the time of collision acts on the left and right center side of the bumper beam 20. Then, during a light collision, a load that is offset upward on the left and right sides acts on the stay 30 via the bumper beam 20.

  Here, since the upper surface portion 32a inside the left and right sides of the stay 30 is formed higher than the upper surface portion 11a of the side frame 10, the input load from the bumper beam 20 is accurately received by the upper surface portion 32a of the stay 30. Can do. That is, as shown by the arrows in FIG. 6, the bumper beam 20 is applied with a force in the direction of entering the collision target object at the time of collision, but is not deformed in the direction in which the upper surface portion 32a of the stay 30 rolls. At this time, since the upper surface portion 32a of the stay 30 is higher than the upper surface portion 11a of the side frame 10, the upper surface portion 11a of the side frame 10 cannot receive an input from the upper surface portion 32a of the stay 30, but the side frame 10 The rain reinforcement 13 provided on the left and right inner upper surface portions 11a can resist the load input from the upper surface portion 32a of the stay 30 to the rear. Thereby, it can suppress that the upper side of the bumper beam 20 and the stay 30 deform | transforms excessively, and can prevent the damage of a light collision from reaching the side frame 10 side. In the case of a vehicle model having a relatively high vehicle height, there is no particular problem during a light collision.

  On the other hand, as shown in FIG. 7, in the case of a large collision, even if the vehicle height is relatively low, the load at the time of collision acts on the entire bumper beam 20, as in the case of a vehicle with a relatively high vehicle height. A load acts on the stay 30 through the bumper beam 20 as a whole. Even in the case of a large collision, the rain reinforcement 13 provided on the upper left and right inner surfaces 11a of the side frame 10 resists load input from the upper surface 32a of the stay 30 to the rear. be able to. Further, with respect to the left and right outer sides of the stay 30, the upper surface portion 32 a of the stay 30 substantially coincides with the height of the upper left and right upper surface portions 12 a of the side frame 10. Can withstand input. As a result, stress does not concentrate on specific portions of the stay 30 and the side frame 10, and the stay 30 and the side frame 10 can be uniformly crushed and energy at the time of a large collision can be absorbed accurately.

  Further, by tilting the upper surface portion 32a of the stay 30, the first upper surface portions 21b and 22b of the bumper beam 20 and the upper surface portion 13b of the rain reinforcement 13 in the left-right direction, the change in the cross section in the left-right direction is moderated. Stress concentration can be avoided. Further, since the front view shapes of the first upper surface portions 21b and 22b of the bumper beam 20 and the upper surface portion 32a of the stay 30 substantially coincide with each other in the left-right direction, the input load applied to the bumper beam 20 can be accurately transmitted to the stay 30 side. Can do. Furthermore, the height of the rear end of the upper surface portion 32a of the stay 30 and the front end of the upper surface portion 13b of the rain reinforcement 13 and the front end of the upper surface portion 12a on the left and right outer sides of the side frame 10 is the left-right direction when viewed from the front. Therefore, the load can be more accurately transmitted from the upper surface portion 32 a of the stay 30 to the side frames 10 and the upper surface portions 11 a and 13 b of the rain reinforcement 13.

  In addition, in the said embodiment, although the recessed part was each formed in the front surface and the rear surface of the bumper beam 20, the recessed part was formed in any one, and the recessed part is not formed in either. Of course, it may be a thing. Further, the detailed structure such as a plate assembly of the side frame 10 and the bumper beam 20 can be appropriately changed.

  While the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the claims. In addition, it should be noted that not all the combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

DESCRIPTION OF SYMBOLS 10 Side frame 11 Inner panel 11a Upper surface part 12 Outer panel 12a Upper surface part 13 Rain reinforcement 13b Upper surface part 20 Bumper beam 21 Front panel 21b First upper surface part 22 Rear panel 22b First upper surface part 30 Stay 32 Upper panel 32a Upper surface part

Claims (5)

A pair of left and right side frames extending in the front-rear direction and having a plate-like upper surface portion;
A bumper beam disposed in front of the side frame and extending in the left-right direction;
A vehicle body front portion structure including a stay extending from the front end of the side frame to the front, having a plate-like upper surface portion, and supporting the bumper beam;
The left and right inner sides of the upper surface portion of the stay are arranged higher than the upper surface portion of the side frame,
The left and right outer sides of the upper surface portion of the stay are substantially matched with the height of the upper surface portion of the side frame,
A vehicle body front structure in which a support member that resists load input from the stay to the rear is provided at the left and right inner front ends of the upper surface of the side frame. The upper surface portion of the side frame is disposed substantially horizontally,
The vehicle body front part structure according to claim 1, wherein the upper surface portion of the stay is formed to be inclined from the left and right inner sides toward the left and right outer sides. The bumper beam has a plate-like upper surface portion,
The upper surface portion of the stay is connected to the upper surface portion of the bumper beam,
The front surface of the vehicle body according to claim 2, wherein the upper surface portion of the bumper beam is formed so as to be inclined downward from the left and right inner sides to the left and right outer sides so that the shape of the front view substantially coincides with the upper surface portion of the stay in the left and right direction. Part structure.   The rear end of the upper surface portion of the stay and the front end of the upper surface portion of the support member and the front end of the upper surface portion on the left and right outer sides of the side frame are configured to substantially coincide in the left-right direction in a front view. The vehicle body front part structure according to claim 3. A flange extending at least upward from the rear end of the upper surface portion of the stay;
A flange extending at least upward from the front end of the upper surface of the side frame;
An inner fastening member for inserting the flanges of the stay and the side frame on the upper left and right sides of the stay and the side frame;
An outer fastening member that passes through the flanges of the stay and the side frame at the upper left and right outer sides of the stay and the side frame, and
The vehicle body front part structure according to claim 4, wherein a height of the inner fastening member is higher than that of the outer fastening member.

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