JP2013147184A - Vehicle body front structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a vehicle body front structure which can increase stiffness of a part where a headlamp is mounted.SOLUTION: A headlamp mounting part to which a headlamp 14 is mounted, and a framework member mounting part 30 for coupling a front fender 12 to a radiator support upper side 16 as a framework member are integrally provided on an inner side in a vehicle width direction of the front fender 12 so that the headlamp mounting part is coupled to the framework member mounting part 30 via a coupling flange 38. Thus, stiffness of the headlamp mounting part 24 is increased, and mounting stiffness of the headlamp 14 is increased.

Description

  The present invention relates to a vehicle body front part structure, and more particularly to a vehicle body front part structure that achieves both rigidity securing of a headlamp and a fender mounting part and press formability.

  In the vehicle body structure disclosed in Patent Document 1, a fixing portion provided in a headlamp is fixed to a lamp mounting surface formed on an upper inner edge of a front fender with a bolt or the like.

JP 2008-162416 A

However, there is room for improvement in order to improve the rigidity of the portion of the front fender where the headlamp is attached.
It is an object of the present invention to obtain a vehicle body front structure that can improve the rigidity of a headlamp mounting portion.

  The vehicle body front part structure according to claim 1 includes a front fender provided on both sides in the vehicle width direction on the front side of the vehicle body, a headlamp provided on the front side of the vehicle body of the front fender, and a vehicle more than the front fender. A skeletal member extending in the vehicle longitudinal direction on the inner side in the width direction, a first vertical wall portion provided on the inner side in the vehicle width direction of the front fender and extending downward from an upper end of the front fender, and the first A headlamp mounting portion configured to include a headlamp mounting flange extending from the lower end of the vertical wall portion to the vehicle body width direction and to which the headlamp is mounted; and provided on the vehicle width direction inner side of the front fender, A second vertical wall portion which is located on the vehicle body rear side of the vertical fender portion and extends downward from the upper end of the front fender, and a vehicle width direction from the lower end of the second vertical wall portion While being connected to said frame member extending inward, having a configured frame member mounting portion includes a frame member mounting flange connected to said headlamp mounting flange.

  In the vehicle body front structure according to claim 1, the headlamp is attached to the headlamp attachment flange of the headlamp attachment portion, and the front fender is attached to the highly rigid skeleton member that forms the skeleton of the vehicle body via the skeleton member attachment portion. It is done.

  Since the headlamp attachment flange is connected to the skeleton member attachment flange of the skeleton member attachment portion attached to the skeleton member, the rigidity is improved as compared with the case where the headlamp attachment flange is not connected to the skeleton member attachment flange. Thereby, the mounting rigidity of the headlamp is improved.

  According to a second aspect of the present invention, in the vehicle body front portion structure according to the first aspect, the first vertical wall portion and the first vertical wall portion are disposed between the first vertical wall portion and the second vertical wall portion. A hole for separating the second vertical wall portion is formed.

  When the front fender is curved for reasons such as a design, the orientation of the first vertical wall portion of the headlamp mounting portion and the second vertical wall portion of the skeleton member mounting portion may be different. When such a front fender is press-formed with a steel plate, if the first vertical wall portion and the second vertical wall are integrally joined, the first vertical wall portion and the second vertical wall are May stop by.

In the vehicle body front part structure according to claim 2, a hole for separating the first vertical wall portion and the second vertical wall portion is formed between the first vertical wall portion and the second vertical wall portion. Therefore, wrinkles can be prevented from occurring in the first vertical wall portion and the second vertical wall portion during pressing, and the moldability of the front fender is improved.
Further, when the first vertical wall portion and the second vertical wall portion are joined, the vertical rigidity becomes high, and it becomes difficult to absorb the impact load from the upper part of the fender. In the structure, since the first vertical wall portion and the second vertical wall portion are separated from each other, the up-down direction is compared with the case where the first vertical wall portion and the second vertical wall portion are joined. The rigidity of the steel is reduced, and the impact load from the upper part of the fender is easily absorbed.

  According to a third aspect of the present invention, in the vehicle body front portion structure according to the first or second aspect, a first bead portion extending in the vehicle front-rear direction is provided at the vehicle width direction inner end of the headlamp mounting flange. A second bead portion extending in the longitudinal direction of the vehicle body is formed at the inner end in the vehicle width direction of the frame member mounting flange.

  According to the vehicle body front part structure of the third aspect, the first bead portion extending in the vehicle longitudinal direction is formed at the vehicle width direction inner end of the headlamp mounting flange, so that the rigidity of the headlamp mounting flange is improved. doing.

Moreover, since the 2nd bead part extended in the vehicle body front-back direction is formed in the vehicle width direction inner side end of the frame member mounting flange, the rigidity of the frame member mounting flange is improved.
Thereby, the rigidity of the headlamp mounting portion is further improved.

  According to a fourth aspect of the present invention, in the vehicle body front portion structure according to the third aspect, the headlamp mounting flange and the skeleton member mounting flange are connected by a connection flange formed with a bead portion extending in the vehicle width direction. In addition, a notch is formed at the inner end in the vehicle width direction of the connecting flange, and the bead portion, the first bead portion, and the second bead portion are separated.

  When the headlamp mounting flange and the frame member mounting flange have different directions, if the front fender including these is pressed with a steel plate, the headlamp mounting flange and the frame member mounting flange may be wrinkled.

  According to the vehicle body front structure according to the fourth aspect, since the bead portion is formed between the headlamp mounting flange and the skeleton member mounting flange, the distortion between the headlamp mounting flange and the skeleton member mounting flange. Is concentrated on the bead portion, and it is possible to suppress wrinkles on the headlamp mounting flange and the frame member mounting flange.

  The vehicle body according to claim 4, wherein when each of the bead portions having high rigidity, the first bead portion, and the second bead portion are connected, press molding is difficult and molding defects are likely to occur. According to the front structure, since the first bead part, the second bead part, and the bead part are divided by the formation of the notches, the moldability is improved and the occurrence of molding defects can be suppressed.

  According to the vehicle body front portion structure of the first aspect, the rigidity of the headlamp mounting portion to which the headlamp is mounted can be improved.

  According to the vehicle body front part structure of the second aspect, the moldability of the front fender becomes good, and the occurrence of molding defects can be suppressed. Moreover, it becomes easy to absorb the impact load from the upper part of the fender.

  According to the vehicle body front portion structure described in claim 3, the rigidity of the headlamp mounting portion is further improved.

  According to the vehicle body front part structure of the fourth aspect, the moldability can be improved and the occurrence of molding defects can be suppressed.

It is a perspective view which shows schematic structure of a vehicle body front part structure. It is a perspective view which shows the state which removed the headlamp which shows schematic structure of a vehicle body front part structure. FIG. 3 is a sectional view of the front fender shown in FIG. 2 taken along line 3-3. It is a perspective view of a fender bracket. It is sectional drawing cut | disconnected along the vehicle width direction of the vehicle body front part structure which concerns on other embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic perspective view of a vehicle 13 having a vehicle body front structure 10 according to the present embodiment, FIG. 2 is a schematic perspective view showing the vehicle body front structure 10 with a headlamp 14 removed, and FIG. FIG. 4 is a cross-sectional view of the front fender 12, and FIG. 4 is a perspective view of the fender bracket 52. Note that an arrow Fr appropriately shown in each drawing indicates a vehicle body front direction, an arrow UP indicates a vehicle body upward direction, and an arrow IN indicates a vehicle width direction inner side.

(Schematic structure of the front body structure)
As shown in FIG. 1, a pair of left and right steel plate float fenders 12 (only one side is shown in FIG. 1) are arranged along the vehicle longitudinal direction on both sides in the vehicle width direction on the vehicle body front side of the vehicle 13. Has been. A headlamp 14 is disposed on the front side of the vehicle body of the float fender 12.

  As shown in FIG. 3, the float fender 12 includes an outer vertical wall portion 12A that covers a vehicle body upper side of a front wheel (not shown) and forms a design surface.

  As shown in FIG. 1, on the inner side in the vehicle width direction of the float fender 12, a radiator support upper side 16 made of a steel plate as a skeleton member that supports a radiator (not shown) is disposed with a gap from the float fender 12.

Further, in the present embodiment, a steel plate apron upper member 18 extending in the vehicle longitudinal direction is provided below the radiator support upper side 16 on the inner side in the vehicle width direction of the float fender 12. The lower surface of the radiator support upper side 16 on the vehicle body rear side is coupled to the upper surface of the apron upper member 18 via the coupling member 20.
A steel plate suspension tower 22 is integrally provided on the inner side of the apron upper member 18 in the vehicle width direction.

(Headlamp mounting part and skeleton member mounting part)
As shown in FIG. 2, on the inner side in the vehicle width direction of the float fender 12, a first vertical wall portion 24A extending from the vehicle body upper side end portion of the outer vertical wall portion 12A toward the vehicle body lower side, and a first vertical wall A headlamp mounting portion 24 configured to include a headlamp mounting flange 24B extending inward in the vehicle width direction from the lower end of the portion 24A is provided.
A hole 26 for inserting a screw 48 described later is formed in the headlamp mounting flange 24B. The head lamp mounting flange 24B is formed with a first bead portion 28 having a substantially arc-shaped cross section along the inner edge in the vehicle width direction.

  As shown in FIGS. 2 and 3, on the inner side in the vehicle width direction of the float fender 12, a second vertical wall portion 30A extending from the vehicle body upper side end portion of the outer vertical wall portion 12A toward the vehicle body lower side, A skeleton member mounting portion 30 including a skeleton member mounting flange 30B extending inward in the vehicle width direction from the lower end of the second vertical wall portion 30A is provided on the vehicle body rear side of the headlamp mounting portion 24.

  A hole 32 for inserting a bolt 58 described later is formed in the skeleton member mounting flange 30B. In addition, a second bead portion 34 having a substantially arc-shaped cross section is formed in the skeleton member mounting flange 30B along the inner edge in the vehicle width direction.

As shown in FIG. 2, the vehicle body upper side edge portion of the outer vertical wall portion 12A to which the upper end portions of the first vertical wall portion 24A and the second vertical wall portion 30A are connected is not linear. The orientation of the first vertical wall portion 24A and the second vertical wall portion 30A is different.
At the vehicle longitudinal direction intermediate portion between the first vertical wall portion 24A and the second vertical wall portion 30A, the first vertical wall portion 24A and the second vertical wall portion 30A are divided in the vehicle longitudinal direction. A hole 36 is formed.

The headlamp mounting flange 24B and the skeleton member mounting flange 30B are connected by a connecting flange 38.
The connecting flange 38 is formed with a beading bead portion 40 having a substantially arcuate cross section extending in the vehicle body width direction.
The connecting flange 38 is formed with a notch 42 at the inner side in the vehicle width direction, and the notch 42 allows the bead portion 40 for scooping and the first bead portion 28 of the headlamp mounting flange 24B to be attached to the skeleton member. The second bead portion 34 of the flange 30B is separated.

As shown in FIGS. 1 and 2, a stay 44 for mounting the headlamp 14 to the headlamp mounting flange 24B extends from the headlamp 14 toward the rear of the vehicle body.
A hole 46 is formed in the stay 44 on the rear side of the vehicle body. The headlamp 14 is attached to the headlamp with a screw 48 and a grommet 50 through which the hole 46 of the stay 44 and the hole 26 of the headlamp attachment flange 24B are inserted. It is fixed to the flange 24B.

The skeleton member mounting flange 30B of the skeleton member mounting portion 30 and the radiator support upper side 16 are connected via a steel plate fender bracket 52 as shown in FIG.
The fender bracket 52 includes an attachment portion 52A attached to the lower surface of the skeleton member attachment flange 30B (not shown in FIG. 4). A hole 56 through which a bolt 54 described later is inserted is formed in the mounting portion 52A.
A leg portion 52B extends from both sides of the mounting portion 52A toward the radiator support upper side 16, and a flange 52C joined to the radiator support upper side 16 by spot welding or the like is integrally formed at the lower end of the leg portion 52B. Is formed.

  As shown in FIGS. 1, 2, and 4, a bolt 58 through which the hole 32 of the skeleton member attachment flange 30 </ b> B and the hole 56 of the fender bracket 52 are inserted is welded to the back surface of the attachment portion 52 </ b> A of the fender bracket 52. By screwing the nut 60, the float fender 12 is supported on the radiator support upper side 16 that is a skeleton member via the fender bracket 52.

(Function)
Next, the operation of the vehicle body front part structure 10 of the present embodiment will be described.
As shown in FIGS. 1 and 2, in the vehicle body front structure 10 of the present embodiment, the headlamp mounting portion 24 to which the headlamp 14 is mounted is connected to the skeleton member mounting portion 30 via the connecting flange 38. The rigidity of the headlamp mounting portion 24 is improved, and the mounting rigidity of the headlamp 14 is improved.

  Further, the first bead portion 28 and the second bead portion 34 are formed on the headlamp mounting flange 24B and the skeleton member mounting flange 30B, and the rigidity is improved. By forming the first bead portion 28 and the second bead portion 34 as described above, the mounting rigidity of the headlamp 14 is further improved.

  The float fender 12 including the headlamp mounting portion 24 and the skeleton member mounting portion 30 is formed by pressing a steel plate. The first vertical wall portion 24A of the headlamp mounting portion 24 and the skeleton member mounting portion 30 Since the punch hole 36 is formed between the second vertical wall portion 30A and the first vertical wall portion 24A and the bone second vertical wall portion 30A are separated from each other, the respective orientations are changed during press molding. It is possible to prevent wrinkles from approaching the different first vertical wall portion 24A and the bone second vertical wall portion 30A.

  Further, there is no punch hole 36 between the first vertical wall portion 24A and the second vertical wall portion 30A, and the first vertical wall portion 24A and the second vertical wall portion 30A are directly connected. If it is, the rigidity becomes high and it becomes difficult to absorb the impact load from the upper part of the fender, but in the present embodiment, between the first vertical wall part 24A and the second vertical wall part 30A. Since the first vertical wall portion 24A and the second vertical wall portion 30A are separated by forming the hole 36, the first vertical wall portion 24A and the second vertical wall portion 30A are connected to each other. Compared with the case where it exists, rigidity becomes low and it becomes possible to absorb the impact load from an upper part.

In the present embodiment, a notch 42 is formed in the vehicle width direction inner side portion of the connecting flange 38, and the highly rigid scraping bead portion 40, the first bead portion 28 of the headlamp mounting flange 24B, and the skeleton member. The second bead portion 34 of the mounting flange 30B is separated. However, if these are connected to each other, the shape of these connecting portions becomes a three-dimensionally complicated shape, resulting in poor molding. May occur.
However, in the present embodiment, the high-rigidity beading portion 40, the first bead portion 28 of the headlamp mounting flange 24B, and the second bead portion 34 of the skeleton member mounting flange 30B are separated. Occurrence of molding defects can be suppressed.

[Other Embodiments]
In the above embodiment, the flange 52C of the leg portion 52B of the fender bracket 52 is joined to the upper surface of the radiator support upper side 16 by spot welding or the like, but the present invention is not limited to this, as shown in FIG. The flange 52C of the leg part 52B of the fender bracket 52 may be joined to the upper surface of the apron upper member 18 which is a skeleton member by spot welding or the like.

  In the above embodiment, the skeleton member mounting flange 30B is connected to the radiator support upper side 16 via the fender bracket 52. However, the skeleton member mounting flange 30B is directly connected to the radiator support upper side 16 and the apron upper member. 18 may be connected.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and other various modifications can be made without departing from the spirit of the present invention. It is.

DESCRIPTION OF SYMBOLS 10 Car body front part structure 12 Float fender 13 Vehicle 14 Headlamp 16 Radiator support upper side (frame member)
18 Apron upper member (frame member)
24 head lamp mounting portion 24A first vertical wall portion 24B head lamp mounting flange 28 first bead portion 30 skeleton member mounting portion 30A second vertical wall portion 30B skeleton member mounting flange 34 second bead portion 36 punch hole 38 Connecting flange 40 Beading part for beading (bead part)
42 Notches

Claims (4)

Front fenders provided on both sides in the vehicle width direction on the front side of the vehicle body,
A headlamp provided on the front side of the vehicle body of the front fender;
A skeletal member extending in the vehicle longitudinal direction on the inner side in the vehicle width direction than the front fender;
A first vertical wall portion that is provided on the inner side in the vehicle width direction of the front fender and extends downward from an upper end of the front fender, and extends inward in the vehicle body width direction from a lower end of the first vertical wall portion. A headlamp mounting portion configured to include a headlamp mounting flange to which the lamp is mounted;
A second vertical wall portion provided on the vehicle width direction inner side of the front fender and positioned on the vehicle body rear side of the first vertical wall portion and extending downward from an upper end of the front fender; and the second fender A vehicle body having a frame member mounting portion that includes a frame member mounting flange that extends inward in the vehicle body width direction from the lower end of the vertical wall portion and is connected to the frame member and connected to the headlamp mounting flange. Front structure.   The hole which isolate | separates a said 1st vertical wall part and a said 2nd vertical wall part is formed between the said 1st vertical wall part and the said 2nd vertical wall part. Vehicle body front structure described in 2. A first bead portion extending in the longitudinal direction of the vehicle body is formed at an inner end in the vehicle width direction of the headlamp mounting flange,
The vehicle body front part structure according to claim 1 or 2, wherein a second bead portion extending in a vehicle longitudinal direction is formed at an inner end in the vehicle width direction of the skeleton member mounting flange. The headlamp mounting flange and the skeleton member mounting flange are connected by a connecting flange formed with a bead portion extending in the vehicle width direction,
The vehicle body front part structure according to claim 3, wherein a cutout is formed at an inner end in the vehicle width direction of the connecting flange to separate the bead part, the first bead part, and the second bead part. .