JP2009001036A - Vehicle body front section structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle body front section structure in which the mounting accuracy of a support bracket is easily secured and the strength of a front side-frame is easily secured. <P>SOLUTION: In this vehicle body front section structure 10, the skeleton of an engine room 20 is formed of a left front side-frame 12 and a left upper member 13. The vehicle body front section structure 10 comprises a connection member 16 with a closed section diagonally installed between the left front side-frame 12 and the left upper member 13. A support bracket 18 is secured, at three points, to the triangular external part 32 of the connection member 16 opposed to the engine room 20 side. An engine/transmission unit 100 is supported by the support bracket 18. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle body front structure that forms a frame of an engine room with a front side frame and an upper member.

  As the vehicle body front structure, the front side frame and the upper member are connected by a connecting member, a support bracket is bolted to the vertical part of the connecting member and the vertical wall of the front side frame, and the engine / transmission unit is supported by the support bracket. Things are known.

According to this vehicle body front part structure, the strength of the vehicle body front part structure can be increased by providing the connecting member.
Further, the engine / transmission unit can be favorably supported by using the connecting member to support the engine / transmission unit (see, for example, Patent Document 1).
JP 2005-112175 A

However, in the vehicle body front part structure of Patent Document 1, the support bracket is bolted to the vertical part of the connecting member and the vertical wall of the front side frame.
Thus, since the support bracket is attached to a plurality of members, it takes a relatively long time to ensure the attachment accuracy of the support bracket.

Furthermore, since the support bracket is bolted to the vertical wall of the front side frame, it is necessary to open a mounting hole in the vertical wall.
For this reason, it is difficult to secure the strength of the front side frame, and it takes time to study to ensure the strength.

  It is an object of the present invention to provide a vehicle body front structure that can easily secure the mounting accuracy of the support bracket and can easily secure the strength of the front side frame.

  According to the first aspect of the present invention, a front side frame is provided at the front portion of the vehicle body in the front-rear direction of the vehicle body, and an upper member is provided above and outside the front side frame, and the engine room is formed by the front side frame and the upper member. Is a vehicle body front structure in which a wheel house is provided between the front side frame and the upper member, and spans the front side frame and the upper member and faces the engine room side. A connecting member having a closed cross-sectional shape having a triangular outer shape formed in a substantially triangular shape at the end, and a support bracket for supporting the engine / transmission unit by three-point support by being provided at three points on the triangular outer shape. And.

  3. The connection member according to claim 2, wherein the connection member is provided to be opposed to the engine room side along an upper surface of the outer connection portion and an outer connection portion that spans the front side frame and the upper member. An inner connecting portion integrated with the connecting portion to form a closed cross section, and the inner connecting portion extends from the upper member along the upper surface of the outer connecting portion to a substantially center of the outer connecting portion. The inner upper connecting portion and the triangular outer shape portion extending from the approximate center of the outer connecting portion to the front side frame along the upper surface of the outer connecting portion are divided into two.

Here, when the upper member is assembled to the front side frame, it is necessary to bridge the connecting member between the front side frame and the upper member.
Incidentally, the connection member is provided with a support bracket for supporting the engine / transmission unit. For this reason, it is necessary to attach the support bracket to the front side frame with high accuracy.

  However, after assembling the upper member to the front side frame, if the connecting member is bridged between the front side frame and the upper member, for example, the wheel house provided between the front side frame and the upper member may It may be a hindrance to assembly at the position.

Therefore, in claim 2, the inner connecting portion is divided into an inner upper connecting portion and a triangular outer shape portion (that is, an inner lower connecting portion), and a support bracket is provided on the inner lower connecting portion.
Therefore, the divided members can be separately assembled to the upper member and the front side frame.
Specifically, the outer connecting portion and the inner upper connecting portion can be assembled in advance to the upper member, while the triangular outer shape portion can be assembled in advance to the front side frame.

  In Claim 3, The said triangular external shape part has the branch part attached over the said wheel house and the said front side frame, The closed section was formed in the said branch part, the said wheel house, and the said front side frame. It is characterized by.

In the invention according to claim 1, the connecting member having a closed cross section is bridged between the front side frame and the upper member. Of the connecting member, a triangular outer shape formed in a substantially triangular shape in a divergent state was provided at a portion facing the engine room side.
The triangular outer shape is provided with support brackets at three points, and the support bracket supports the engine / transmission unit at three points.

Therefore, three points (all supporting points) supporting the engine / transmission unit can be provided in one member of the triangular outer shape.
Thereby, the accuracy of the support position that supports the engine / transmission unit can be easily ensured, and further the accuracy of the support position can be improved.

In addition, since the support bracket is provided on the connecting member, it is not necessary to bolt the support bracket to the front side frame.
Thereby, since it is not necessary to open the attachment hole for attaching a support bracket to a front side frame, the intensity | strength of a front side frame can be ensured easily.

  In the invention which concerns on Claim 2, the inner side connection part was divided into 2 to the inner side upper connection part and the inner side lower connection part. Therefore, the outer connecting portion and the inner upper connecting portion can be assembled in advance to the upper member, and the triangular outer shape portion can be assembled in advance to the front side frame.

Thereby, before attaching an upper member and a wheel house to a front side frame, it becomes possible to assemble a triangular external part to a single front side frame.
Therefore, the triangular outer shape can be easily assembled with high accuracy with respect to the front side frame.

Furthermore, by assembling the outer connecting portion and the inner upper connecting portion to the upper member in advance and the triangular outer shape portion to the front side frame in advance, it is not necessary to individually transport each member of the connecting member.
Thereby, handling of components in the assembly line is facilitated, and the assembly process can be simplified.

In the invention which concerns on Claim 3, a triangular external shape part has a branch part attached over the wheel house and the front side frame. And the closed cross section was formed in the branch part, the wheel house, and the front side frame.
Thereby, the front side frame can be reinforced with the closed cross section of the branch portion, the wheel house, and the front side frame, and the strength of the front side frame (vehicle body front structure) can be further increased.

In addition, by forming a closed cross section with the branch portion and the wheel house, the strength of the branch portion can be sufficiently ensured.
Thereby, a support bracket can be firmly attached to a triangular external shape part by utilizing a branch part as a part for attaching a support bracket.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. Note that “front”, “rear”, “left”, and “right” indicate Fr as the front, Rr as the rear, L as the left, and R as the right according to the direction seen from the operator.

FIG. 1 is a perspective view showing a vehicle body front structure according to the present invention.
The vehicle body front structure 10 includes a left front side frame (front side frame) 12 provided at the front portion of the vehicle body, a left upper member (upper member) 13 provided on the outer upper side of the left front side frame 12, and a left upper side. A left lower member 14 extending downwardly from the vicinity of the front end of the member 13 toward the front of the vehicle body, a left wheel house 15 provided between the left front side frame 12 and the left upper member 13, and a left front A connecting member 16 that spans the side frame 12 and the left upper member 13 and a support bracket 18 provided on the connecting member 16 are provided.
The left front side frame 12 and the left upper member 13 form a skeleton of the engine room 20.

The left front side frame 12 is a frame member that is disposed on the left side of the front portion of the vehicle body and extends in the longitudinal direction of the vehicle body.
The left upper member 13 is a member provided above the left front side frame 12 and outside the left front side frame 12.

  The left wheel house 15 is a member that is provided across the left front side frame 12 and the left upper member 13 and supports a left suspension (not shown) on the top portion 15a. A left front wheel (not shown) is supported on the left suspension.

2 is an exploded perspective view showing a vehicle body front part structure according to the present invention, and FIG. 3 is a cross-sectional view taken along line 3-3 of FIG.
The connecting member 16 is provided across the left front side frame 12 and the left upper member 13, and is provided along the outer connecting portion 21 facing the outside of the engine room 20 and the upper surface of the outer connecting portion 21. And an inner connecting portion 22 (a portion facing the engine room side).

  The outer connecting portion 21 includes an inclined plate 24 provided between the left front side frame 12 and the left upper member 13, an outer bent joint piece 25 that connects the inclined plate 24 to the left upper member 13, and the inclined plate 24 to the left. An inner bent joint piece 26 connected to the front side frame 12 and a rear bent joint piece 28 connecting the rear side of the inclined plate 24 to the left wheel house 15 are provided.

The inclined plate 24 is a portion that extends downwardly from the left upper member 13 toward the left front side frame 12.
The outer bent joint piece 25 is a portion that is bent from the outer end of the inclined plate 24 along the inner wall 13a of the left upper member 13 and joined to the inner wall 13a.

The inner bent joint piece 26 is a part that is bent from the inner end of the inclined plate 24 along the outer wall 12a of the left front side frame 12 and joined to the outer wall 12a.
The rear bent joint piece 28 is a part that is bent upward along the front wall 15b of the left wheel house 15 from the rear side of the inclined plate 24 and joined to the front wall 15b.

The inner connecting portion 22 is divided into two, an inner upper connecting portion 31 provided on the left upper member 13 side, and a triangular outer shape portion (that is, an inner lower connecting portion) 32 provided on the left front side frame 12 side. Yes.
The inner upper connecting portion 31 and the triangular outer shape portion 32 are provided so as to face the engine room 20 side along the upper surface of the outer connecting portion 21.
The inner upper connecting portion 31 and the triangular outer shape portion 32 are spot welded to the lower end portion 31 a of the inner upper connecting portion 31 and the upper end portion 51 b of the triangular outer shape portion 32.

The inner upper connecting portion 31 is a member that extends from the left upper member 13 to the approximate center of the outer connecting portion 21.
The inner upper connecting portion 31 is an outer inclined ridge 34 extending from the left upper member 13 to the approximate center 21 a of the outer linking portion 21 and an outer end connecting the upper end of the upper inclined ridge 34 to the left upper member 13. A bent joint piece 35, a front overhang joint piece 36 for connecting the front lower side of the upper inclined raised portion 34 to the front joint piece 24a of the inclined plate 24, and a rear lower side of the upper inclined raised portion 34 connected to the left wheel house 15 And a back bent joint piece 38.

The upper inclined raised portion 34 is formed in a substantially trapezoidal cross section so as to rise upward (see FIG. 5), and extends along the upper surface of the outer connecting portion 21 from the left upper member 13 to the approximate center 21 a of the outer connecting portion 21. This is the extended part.
The outer bent joint piece 35 is a portion that is bent upward along the inner wall 13 a of the left upper member 13 from the outer end portion of the upper inclined raised portion 34.
The outer bent joint piece 35 is overlapped with the outer bent joint piece 25 of the outer connecting portion 21, and is joined to the inner wall 13 a of the left upper member 13 together with the outer bent joint piece 25.

The front projecting joint piece 36 is a part projecting from the front lower side of the upper inclined protuberance 34 toward the front of the vehicle body along the front joint piece 24 a of the inclined plate 24.
The front overhang joining piece 36 is joined in a state of being overlapped with the front joining piece 24a of the outer connecting portion 21.

The rear bent joint piece 38 is a portion that is bent upward along the front wall 15 b of the left wheel house 15 from the rear lower side of the upper inclined raised portion 34.
The rear bent joint piece 38 is overlapped with the rear bent joint piece 28 of the outer connecting portion 21, and is joined to the front wall 15 b of the left wheel house 15 together with the rear bent joint piece 28.

FIG. 4 is a perspective view showing an inner lower connecting portion of the vehicle body front structure according to the present invention.
The triangular outer shape portion 32 is a member that is formed in a substantially triangular shape with an outer shape spreading outwardly and an opening 41 is formed in the center.
The triangular outer shape portion 32 has a divergent shape, and a lower front connection portion 43 extending from the approximate center 21a (see FIG. 3) of the outer connection portion 21 to the left front side frame 12, and an upper end portion of the lower front connection portion 43. And a connecting plate 45 that connects the branching portion 44 and the lower front connecting portion 43.

The lower front connecting portion 43 extends from the approximate center 21a of the outer connecting portion 21 to the left front side frame 12 and projects from the front side of the lower front raised portion 51 toward the front of the vehicle body. The front overhanging portion 52, the rear overhanging portion 53 protruding from the rear side of the lower front raised portion 51 toward the rear of the vehicle body, and the upper end portion 51b of the lower front raised portion 51 are bent upward from the rear side. It has the upper bending junction part 54 and the lower overhanging junction part 55 projected from the lower end part 51c of the lower front raised part 51. FIG.
The lower overhang joining portion 55 includes a horizontal portion 56 joined to the upper wall 12 c of the left front side frame 12 and a vertical portion 57 joined to the inner wall 12 b of the left front side frame 12.

  The lower front raised portion 51 is formed in a substantially trapezoidal cross section so as to rise upward (see FIG. 6), and is a portion extending from the approximate center 21 a of the outer connecting portion 21 to the left front side frame 12. .

A first mounting hole 61 and a first welding nut 65 are coaxially provided at the upper end portion 51 b of the lower front raised portion 51.
A second mounting hole 62 and a second welding nut 66 are provided coaxially at the lower end 51 c of the lower front raised portion 51.
As shown in FIG. 6, the front projecting portion 52 is joined to the front joining piece 24 a of the outer connecting portion 21.

The branch portion 44 is attached across the left wheel house 15 and the left front side frame 12.
The branch portion 44 includes a branch ridge portion 71 disposed between the left wheel house 15 and the left front side frame 12, and a front bulge portion 72 projecting from the front lower side of the branch ridge portion 71 toward the front of the vehicle body. The upper protruding joint 73 projecting from the upper end of the branch ridge 71 and the lower projecting joint 74 projecting from the lower end of the branch ridge 71 are provided.

The front overhang portion 72 is a member that is connected to the rear overhang portion 53 of the lower front connecting portion 43.
The lower overhang joining portion 74 includes a horizontal portion 75 joined to the upper wall 12 c of the left front side frame 12 and a vertical portion 76 joined to the inner wall 12 b of the left front side frame 12.

The branched raised portion 71 is formed so as to rise upward (see also FIG. 8), and is a portion disposed between the left wheel house 15 and the left front side frame 12.
A third mounting hole 63 and a third welding nut 67 are coaxially provided in the branch ridge 71.

The lower overhang joint portion 55 of the lower front connection portion 43 and the lower overhang joint portion 74 of the branch portion 44 are connected by a connection plate 45.
The connecting plate 45 includes a horizontal portion 78 joined to the upper wall 12 c of the left front side frame 12 and a vertical portion 79 joined to the inner wall 12 b of the left front side frame 12.

As described above, the triangular outer portion 32 is formed in a substantially triangular shape with the lower front connecting portion 43, the branching portion 44, and the connecting plate 45 in a divergent state. Then, the triangular outer shape portion 32 as one member is provided with a first mounting hole 61 and a first welding nut 65, a second mounting hole 62 and a second welding nut 66, a third mounting hole 63 and a third welding nut 67. ing.
Thereby, the support bracket 18 can be provided at three points on the triangular outer shape portion 32 which is one member.

5 is a cross-sectional view taken along line 5-5 of FIG.
In the connecting member 16, the rear bent joint piece 28 of the outer connecting portion 21 and the rear bent joint piece 38 of the inner upper connecting portion 31 are spot welded to the front wall 15 b of the left wheel house 15. The piece 24a and the front overhang joining piece 36 of the inner upper connecting portion 31 are spot-welded.
Thereby, the outer side connection part 21 and the inner side upper connection part 31 are integrated and formed in the closed cross section.

6 is a sectional view taken along line 6-6 of FIG.
As for the connection member 16, the front joining piece 24a of the outer side connection part 21 and the front overhang | projection part 52 of the lower front connection part 43 are spot-welded.
Thereby, the outer side connection part 21 and the lower front connection part 43 are integrated and formed in the closed cross section.

As shown in FIGS. 5 and 6, the connecting member 16 spanning the left front side frame 12 and the left upper member 13 is formed in a closed cross section.
As a result, the left front side frame 12 and the left upper member 13 can be reinforced by the connecting member 16 having a closed cross section, and the strength of the vehicle body front structure 10 can be increased.

7 is a cross-sectional view taken along line 7-7 of FIG.
In the connecting member 16, the lower overhang joint portion 55 of the lower front connecting portion 43 is spot welded to the upper wall 12 c and the inner wall 12 b of the left front side frame 12.
Thus, in the state where the second leg 87 (described later) of the support bracket 18 is bolted to the lower end 51c of the lower front raised portion 51, the second leg 87 is sufficiently secured by the lower end 51c of the lower front raised portion 51. Can be supported.

8 is a cross-sectional view taken along line 8-8 in FIG.
4, the support bracket 18 is not bolted. However, in FIG. 8, the support bracket 18 is bolted for easy understanding of the configuration.
In the connecting member 16, the upper projecting joint portion 73 of the branch portion 44 is spot-welded to the inner wall 15 c of the left wheel house 15, and the lower projecting joint portion 74 of the branch portion 44 is connected to the upper wall 12 c and the inner wall of the left front side frame 12. Spot welded to 12b.

Therefore, a closed section is formed by the branch portion 44, the left wheel house 15, and the left front side frame 12.
Thereby, the left front side frame 12 can be reinforced by the closed cross section of the branch portion 44, the left wheel house 15, and the left front side frame 12, and the strength of the left front side frame 12 (that is, the vehicle body front structure 10) can be increased. It can be further enhanced.

In addition, by forming a closed cross section with the branch portion 44 and the left wheel house 15, the strength of the branch portion 44 can be sufficiently ensured.
Thereby, the branch portion 44 can be used as a portion for attaching the support bracket 18, and the number of portions for attaching the support bracket 18 to the triangular outer shape portion 32 can be increased to three.
Thus, the support bracket 18 can be firmly attached to the triangular outer shape portion 32 by using the branch portion 44 as a portion for attaching the support bracket 18.

Returning to FIG. 2, the support bracket 18 is provided on the triangular outer shape portion 32. The support bracket 18 includes a bracket portion 81 that is bolted to the triangular outer shape portion 32, and a rubber member 82 that is attached to the bracket portion 81.
The bracket portion 81 includes an annular portion 84 that supports the rubber member 82 and first to third leg portions 86 to 88 that protrude radially from the annular portion 84.
Attachment holes 91 to 93 are formed in the first to third leg portions 86 to 88, respectively.

A first bolt 95 is inserted into the mounting hole 91 of the first leg 86 and the first mounting hole 61 of the lower front connecting portion 43, and is screwed to the first nut 65.
A second bolt 96 is inserted into the mounting hole 92 of the second leg portion 87 and the second mounting hole 62 of the lower front connecting portion 43, and is screwed to the second nut 66.

A third bolt 97 is inserted into the mounting hole 93 of the third leg portion 88 and the third mounting hole 63 of the lower front connecting portion 43, and is screwed to the third nut 67.
Thereby, the support bracket 18 is attached to the triangular outer shape portion 32 with the first to third bolts 95 to 97.
That is, the support bracket 18 is provided at three points on the triangular outer shape portion 32, and the engine / transmission unit can be supported at three points by the support bracket 18.

Therefore, three points (all supporting points) for supporting the engine / transmission unit 100 can be provided in one member of the triangular outer shape portion 32.
Thereby, the accuracy of the support position that supports the engine / transmission unit 100 can be easily ensured, and further the accuracy of the support position can be improved.

Thus, since the support bracket 18 is provided in the lower front connecting portion 43 (that is, the connecting member 16), it is not necessary to bolt the support bracket 18 to the left front side frame 12.
Therefore, it is not necessary to open an attachment hole for attaching the support bracket 18 to the left front side frame 12.
Thereby, the strength of the left front side frame 12 can be easily ensured.

Returning to FIG. 3, the connecting member 16 is provided with a downward slope (inclined state) from the left upper member 13 toward the left front side frame 12.
Therefore, the triangular outer shape portion 32 is disposed with a downward slope between the substantially center 21a of the outer connecting portion 21 and the left front side frame 12 so as to face the engine room 20 side.

  The support bracket 18 is attached to the triangular outer shape portion 32 inclined so as to face the engine room 20 with first to third bolts 95 to 97 (see FIG. 2 for the second to third bolts 96 to 97). It has been.

Thereby, it can arrange | position easily in the state which inclined the support bracket 18. FIG.
A mounting bracket 102 of the engine / transmission unit 100 is attached to the rubber member 82 of the support bracket 18 with bolts 104 and nuts 105.
By making the support bracket 18 in an inclined state, for example, the mounting height of the engine / transmission unit 100 can be kept low.

Next, the process of assembling the vehicle body front part structure 10 will be described with reference to FIGS.
FIGS. 9A and 9B are views for explaining an example in which the outer connecting portion and the inner upper connecting portion of the connecting member according to the present invention are welded to the upper member.
In (a), first, the left lower member 14 is spot welded to the left wheel house 15.
Next, the outer connecting portion 21 of the connecting member 16 is spot welded to the front wall 15 b of the left wheel house 15. Next, the inner upper connecting portion 31 is spot welded to the upper surface of the outer connecting portion 21.
Thereafter, the left upper member 13 is superimposed on the upper ends of the left wheel house 15 and the left lower member 14 as indicated by an arrow A.

In (b), the left upper member 13 is spot-welded to the upper end portion 14 a of the left wheel house 15 and the left lower member 14.
Therefore, the outer connecting portion 21 and the inner upper connecting portion 31 of the connecting member 16 can be assembled together in advance on the left upper member 13 side.
This eliminates the need to handle (convey) the outer connecting portion 21 and the inner upper connecting portion 31 individually as a single unit.

10A and 10B are views for explaining an example in which the connecting member according to the present invention is provided between the left front side frame and the left upper member.
In (a), the triangular outer shape portion 32 of the connecting member 16 is spot-welded to the left front side frame 12.
Therefore, the triangular outer shape portion 32 of the connecting member 16 can be integrally assembled to the left front side frame 12 in advance.
This eliminates the need to handle (convey) the triangular outer shape part 32 individually as a single unit.

In (b), the left wheel house 15 is spot welded to the left front side frame 12 as indicated by an arrow B, and the front end portion 14b of the left lower member 14 is spot welded to the left front side frame 12 as indicated by an arrow C.
At the same time, the lower end portion 31 a of the inner upper connecting portion 31 is spot welded to the triangular outer shape portion 32 as indicated by an arrow D, and the upper surface of the outer connecting portion 21 is spot welded to the triangular outer shape portion 32.

Thereby, as shown in FIG. 1, the connecting member 16 can be assembled across the left front side frame 12 and the left upper member 13.
Thereafter, as shown in FIG. 1, the support bracket 18 is attached to the triangular outer shape portion 32 with bolts 95 to 97.

As described with reference to FIGS. 9 and 10, the connecting member 16 is divided into the outer connecting portion 21 and the inner connecting portion 22, and the inner connecting portion 22 is further divided into an inner upper connecting portion 31 and a triangular outer shape portion 32. Divided.
Therefore, the outer connecting portion 21 and the inner upper connecting portion 31 can be assembled in advance on the left upper member 13 side, and the triangular outer shape portion 32 can be assembled in advance on the left front side frame 12.

Thereby, before attaching the left upper member 13 and the left wheel house 15 to the left front side frame 12, the triangular outer shape part 32 can be assembled to the single left front side frame 12.
Therefore, the triangular outer shape portion 32 can be easily and accurately assembled to the left front side frame 12.
By assembling the triangular outer shape portion 32 with high accuracy, the support bracket 18 (see FIG. 1) can be easily assembled with high accuracy into the triangular outer shape portion 32.

Furthermore, the outer connecting portion 21 and the inner upper connecting portion 31 are assembled in advance to the left upper member 13, and the triangular outer shape portion 32 is assembled in advance to the left front side frame 12, whereby each member 21, 31, 32 of the connecting member 16. There is no need to transport each individually.
Thereby, handling of components in the assembly line is facilitated, and the assembly process can be simplified.

  In the above-described embodiment, the example in which the connecting member 16 is applied to the left side member of the vehicle body front structure 10 has been described. However, the present invention is not limited thereto, and the connecting member 16 is applied to the right side member of the vehicle body front structure 10. It is also possible.

  Further, the shapes of the inner connecting portion 22, the inner upper connecting portion 31, the triangular outer shape portion 32, the branching portion 44, and the like exemplified in the above embodiment can be appropriately changed according to the vehicle.

  The vehicle body front structure of the present invention is suitable for application to an automobile in which a skeleton of an engine room is formed by a front side frame and an upper member.

It is a perspective view which shows the vehicle body front part structure which concerns on this invention. It is a disassembled perspective view which shows the vehicle body front part structure which concerns on this invention. FIG. 3 is a sectional view taken along line 3-3 in FIG. 1. It is a perspective view which shows the inner side lower connection part of the vehicle body front part structure which concerns on this invention. FIG. 5 is a sectional view taken along line 5-5 of FIG. FIG. 6 is a sectional view taken along line 6-6 of FIG. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 4. FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 4. It is a figure explaining the example which welds the outer side connection part and inner side upper connection part of the connection member which concern on this invention to an upper member. It is a figure explaining the example which provides the connection member which concerns on this invention between a left front side frame and a left upper member.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Car body front part structure, 12 ... Left front side frame (front side frame), 13 ... Left upper member (upper member), 15 ... Left wheel house (wheel house), 16 ... Connecting member, 18 ... Support bracket, 20 ... engine room, 21 ... outer connecting part, 21a ... approximately the center of the outer connecting part, 22 ... inner connecting part (part facing the engine room side), 31 ... inner upper connecting part, 32 ... triangular outer shape part, 44 ... branch 100, engine / transmission unit.

Claims (3)

A front side frame is provided at the front part of the vehicle body in the front-rear direction of the vehicle body, an upper member is provided above the front side frame, and an engine room skeleton is formed by the front side frame and the upper member. A vehicle body front structure in which a wheel house is provided between a side frame and the upper member,
A connecting member having a closed cross-section having a triangular outer shape formed in a substantially triangular shape in a divergent state at a portion spanning the front side frame and the upper member and facing the engine room side;
A support bracket for supporting the engine / transmission unit with a three-point support by being provided at three points on the triangular outer shape;
A vehicle body front structure characterized by comprising: The connecting member is
An outer connecting portion spanned between the front side frame and the upper member;
An inner connecting portion that is provided facing the engine room along the upper surface of the outer connecting portion, and is integrated with the outer connecting portion to form a closed cross-section;
Have
The inner connecting part
An inner upper connecting portion that extends from the upper member along the upper surface of the outer connecting portion to the approximate center of the outer connecting portion;
The triangular outer shape portion extending from the approximate center of the outer connecting portion to the front side frame along the upper surface of the outer connecting portion;
The vehicle body front part structure according to claim 1, which is divided into two parts. The triangular outer shape has a branch portion attached over the wheel house and the front side frame,
The vehicle body front structure according to claim 2, wherein a closed section is formed by the branch portion, the wheel house, and the front side frame.

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