Vehicle body front structure

Abstract

To eliminate the need for a sophisticated machining technique when a floor brace is bent.SOLUTION: A floor brace 30 includes a firs brace component 32 and a second brace component 34. The lower end of the first brace member 32 is connected to a vehicle body floor part (floor tunnel 25). The upper end of the first brace member 32 is connected to an instrument panel reinforce 10. The second brace component 34 is shorter than the first brace member 32. The second brace component 34 is provided with a fastening piece 35 and an attaching piece 36. The fastening piece 35 is fastened to the first brace member 32. The attaching piece 36 is bent from the fastening piece 35. Further, ECUs 40 and 50 which are on-vehicle components are attached to the attaching piece 36.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present specification discloses a vehicle front body structure. In particular, the present specification discloses a floor brace configuration that supports an instrument panel reinforcement. [Background technology]

[0002] An instrument panel reinforcement is installed on the vehicle body as a reinforcing part that supports the steering mechanism. The instrument panel reinforcement will be referred to as the instrument panel R / F hereinafter.

[0003] The instrument panel R / F is covered by an instrument panel, which is an interior material. The instrument panel R / F is fixed at a height substantially equal to the height of the steering wheel, for example.

[0004] The instrument panel R / F extends in the vehicle width direction. Both ends of the instrument panel R / F in the vehicle width direction are supported by A-pillars, which form the framework of the vehicle body.

[0005] Furthermore, a floor brace is mounted on the vehicle body to support the instrument panel R / F in the vertical direction. The floor brace is a reinforcing component that extends in the vertical direction. The lower end of the floor brace is supported by the floor tunnel. Such floor braces are disclosed in, for example, Patent Documents 1 and 2. Patent Document 3 discloses an example in which the brace material is composed of multiple divided bodies.

[0006] The upper end of the floor brace is connected to the instrument panel R / F. Furthermore, an extension portion is provided at the upper end of the floor brace that extends parallel to the instrument panel R / F. In other words, the floor brace extends in the vertical direction and is bent at the upper end to extend in the vehicle width direction. On-board parts are attached to the extension portion beyond the bend point. For example, on-board parts such as an electronic control unit (ECU) are attached here. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2013-226995 A [Patent Document 2] Patent No. 6953846 [Patent Document 3] JP 2019-059329 A Summary of the Invention [Problem to be solved by the invention]

[0008] However, bending the upper end of a floor brace, which is a long reinforcing part, requires advanced processing technology. First of all, since the floor brace is a reinforcing part, it has high bending strength. In other words, the floor brace is difficult to bend.

[0009] Next, when bending the upper end of the floor brace, the position of the lower end of the floor brace fluctuates due to variations in the bending angle. The position of the lower end refers to the relative position of the lower end with respect to the upper end. Because the floor brace is a long part, even a slight difference in the bending angle leads to a large displacement of the lower end of the floor brace. For this reason, the allowable bending angle error (tolerance) for the floor brace is set within a narrow range.

[0010] Thus, in the past, the tolerance range of the bending angle was set narrow for floor brace materials that are difficult to bend.

[0011] Therefore, this specification discloses a vehicle front body structure that does not require advanced processing techniques when bending the floor brace. [Means for solving the problem]

[0012] This specification discloses a vehicle body front structure. The vehicle body front structure includes an instrument panel reinforcement and a floor brace. The instrument panel reinforcement extends in the vehicle width direction. The floor brace supports the instrument panel reinforcement in the up-down direction. The floor brace includes a first brace component and a second brace component. A lower end of the first brace component is connected to a vehicle body floor. An upper end of the first brace component is connected to the instrument panel reinforcement. The second brace component is shorter than the first brace component. The second brace component includes a fastening piece and an attachment piece. The fastening piece is fastened to the first brace component. The attachment piece is bent from the fastening piece. Furthermore, an on-vehicle component is attached to the attachment piece.

[0013] According to the above configuration, the floor brace is divided into a long first brace component and a short second brace component. Then, the second brace component is bent. A tolerance is set in the bending process of the second brace. Since the second brace is short, the tolerance range is prevented from becoming excessively narrow.

[0014] In the above configuration, a bracket may be disposed on the instrument panel reinforcement. The bracket extends rearward. An upper end of the first brace component and a fastening piece of the second brace component are fastened to the bracket.

[0015] According to the above configuration, at least three members (the bracket, the first brace component, and the second brace component) are overlapped at the fastening point between the instrument panel and the floor brace, thereby improving the rigidity of the fastening point.

[0016] In the above configuration, the upper end of the first brace component, the fastening piece of the second brace component, and the bracket may have a groove-shaped cross section. In this case, the first brace component is placed on the bracket. Furthermore, the fastening piece of the second brace component is placed on the upper end of the first brace component. Furthermore, the upper end of the first brace component and the fastening piece of the second brace component are supported at one point by the bracket. In addition, the side wall of the bracket and the side wall of the upper end of the first brace component are spaced apart.

[0017] The first brace component and the second brace component are supported at one point by the bracket. In addition, the side wall of the bracket and the side wall at the upper end of the first brace component are separated. Therefore, the first brace component and the second brace component are rotatable relative to the bracket. For example, during a frontal collision of the vehicle, the instrument panel reinforcement is pushed back by equipment in the engine room. Due to the retraction of the instrument panel reinforcement, the bracket rotates relative to the first brace component and the second brace component around the one-point support point. This rotation prevents bending deformation of the first brace component in particular. When the rotation of the bracket continues, the side wall of the bracket and the side wall of the first brace component collide. Here, the side wall of the first frame component and the side wall of the second brace component support the side wall of the bracket. Compared to the case where the side wall of the bracket is supported by a single side wall, deformation of the first brace component is suppressed.

[0018] In the above configuration, the mounting piece may extend in the vehicle width direction along the instrument panel reinforcement.

[0019] According to the above configuration, a plurality of vehicle mounted parts can be aligned along the instrument panel reinforcement.

[0020] In the above configuration, the first brace component may be disposed closer to the passenger seat than the center in the vehicle width direction. In this case, the second brace component is disposed in a gap between the first brace component and the glove box in the vehicle width direction. The on-vehicle component has a thin rectangular parallelepiped shape. The on-vehicle component is disposed vertically so that the main surface with the largest area faces the side surface of the glove box.

[0021] According to the above configuration, the on-vehicle components can be arranged in accordance with the shape of the glove box. Effect of the Invention

[0022] According to the vehicle front body structure disclosed in this specification, advanced processing techniques are not required for bending the floor brace. [Brief description of the drawings]

[0023] [Figure 1] 1 is an overall perspective view illustrating a vehicle body front structure according to an embodiment of the present invention; [Diagram 2] FIG. 1 is an enlarged oblique view of the area around the floor brace. [Diagram 3] FIG. 3 is an exploded perspective view for explaining an assembly structure of the main components of FIG. 2. [Figure 4] FIG. 13 is an enlarged perspective view for explaining the surrounding structure of the fastening point between the floor brace and the brace bracket. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] A vehicle body front structure according to an embodiment will be described below with reference to the drawings. The shapes, materials, quantities, and values ​​described below are examples for the purpose of explanation. These shapes, etc. can be changed as appropriate depending on the specifications of the vehicle body front structure. In addition, the same reference numerals are used for equivalent elements in all drawings below.

[0025] In addition, in Figs. 1 to 4, the vehicle front-rear direction is indicated by the FR axis. The vehicle width direction is indicated by the RW axis. Furthermore, the vehicle height direction is indicated by the UP axis. The FR axis, RW axis, and UP axis are perpendicular to each other. The positive direction of the FR axis is the front. The positive direction of the RW axis is the right. The positive direction of the UP axis is the top.

[0026] A vehicle body front structure according to this embodiment is illustrated in Fig. 1. Specifically, a skeleton structure of a front portion of a vehicle interior is illustrated in Fig. 1. As this skeleton structure, an instrument panel reinforcement 10 and floor braces 30, 31 are disposed in the vehicle body front structure.

[0027] The instrument panel reinforcement 10 will be referred to as the instrument panel R / F 10 below as appropriate. The instrument panel R / F 10 extends in the vehicle width direction. The instrument panel R / F 10 is made of, for example, a pipe material. The instrument panel R / F 10 includes a D pipe 12 and a P pipe 14. The D pipe 12 is a pipe on the driver's seat side. The P pipe 14 is a pipe on the passenger's seat side.

[0028] The D pipe 12 has higher rigidity than the P pipe 14. For example, the D pipe 12 has a larger diameter than the P pipe 14. As illustrated in Fig. 1, a reduced diameter section 16 is provided between the D pipe 12 and the P pipe 14. For example, the D pipe 12 and the P pipe 14 are inserted into the reduced diameter section 16. Furthermore, the reduced diameter section 16 and the D pipe 12, and the reduced diameter section 16 and the P pipe 14 are joined by full circumference welding or the like.

[0029] The instrument panel R / F 10 supports a steering column 26. The steering column 26 extends in the front-rear direction of the vehicle. The steering column 26 is supported by the instrument panel R / F 10 via a steering support 24 and a steering bracket 22. The steering wheel 20 is attached to the rear end of the steering column 26.

[0030] Further, in addition to the steering system devices, audio devices, front airbags, etc. (not shown) are also mounted on the instrument panel R / F 10.

[0031] A vehicle is equipped with multiple ECUs (on-board components). An ECU is an electronic control unit, such as a computer. An ECU is provided for each function of the vehicle. For example, a motor ECU for controlling the motor, which is the driving source, is installed on the vehicle. Also, a battery ECU for managing the SOC of the battery, etc. is installed on the vehicle. Furthermore, an air conditioning ECU for controlling the air conditioning equipment is installed on the vehicle.

[0032] If these various ECUs are arranged under the floor, the vehicle interior space will be narrowed accordingly. Therefore, the ECUs are housed in the instrument panel. For example, ECU 90 is attached to the instrument panel R / F 10. ECU 40 and ECU 50 are attached to the floor brace 30. The support structure for these ECUs will be described later.

[0033] Both ends of the instrument panel R / F 10 in the vehicle width direction are fixed to front pillars (not shown). For example, the instrument panel R / F 10 is positioned at the same height as the steering wheel 20.

[0034] The instrument panel R / F 10 is supported by floor braces 30, 31. The floor braces 30, 31 support the instrument panel R / F 10 in the up-down direction. The floor braces 30, 31 are reinforcing parts or frame parts. The floor braces 30, 31 are metal parts, for example, made of steel.

[0035] The floor braces 30, 31 extend in the up-down direction. More specifically, the floor braces 30, 31 have a boomerang structure in side view (RW axis view), that is, the floor braces 30, 31 include an upper portion that extends relatively in the vehicle front-rear direction and a lower portion that extends relatively in the vehicle up-down direction.

[0036] The floor braces 30, 31 have a groove-shaped cross section. For example, as illustrated in Fig. 2, the floor brace 30 has a bottom wall 32A that forms the bottom of the groove. The floor brace 30 also has side walls 32B, 32C at both ends of the bottom wall 32A. The floor brace 31 on the driver's seat side has the same structure as above. The floor braces 30, 31 are arranged so that the open end of the groove faces outward in the vehicle width direction.

[0037] The floor braces 30, 31 are connected to the vehicle body floor. That is, flanges 30E, 31E (see FIG. 1) are formed at the lower ends of the floor braces 30, 31. Fastening holes (not shown) are drilled in the thickness direction of the flanges 30E, 31E. A floor tunnel 25 is disposed in the vehicle body floor. The floor tunnel 25 is disposed in the center of the vehicle width direction of the vehicle body. The floor tunnel 25 also extends in the vehicle front-rear direction.

[0038] The floor tunnel 25 has, for example, a square cylindrical cross section. The flanges 30E, 31E of the floor braces 30, 31 abut against the side walls of the floor tunnel 25. Furthermore, the flanges 30E, 31E are fixed to the side walls of the floor tunnel 25 by tightening bolts and nuts.

[0039] The instrument panel R / F10 includes brace brackets 60, 61. Upper ends of the floor braces 30, 31 are connected to the instrument panel R / F10 via the brace brackets 60, 61. The brace brackets 60, 61 extend from the rear surface of the instrument panel R / F10 toward the rear of the vehicle. Front ends of the brace brackets 60, 61 are fixed to the instrument panel R / F10 by welding.

[0040] 3 shows an exploded perspective view of the brace bracket 60 on the passenger seat side and its surrounding structure. The brace bracket 60 has a groove-shaped cross section. That is, the brace bracket 60 has a bottom wall 60A and side walls 60B, 60C. The groove width of the brace bracket 60 becomes wider toward the rear. By providing such a widening shape, the brace bracket 60 can rotate with respect to the floor brace 30. The details of this rotation structure will be described later.

[0041] Furthermore, a stud bolt 60D is disposed on the bottom wall 60A of the brace bracket 60. The shaft portion of the stud bolt 60D extends outward in the vehicle width direction. The stud bolt 60D is inserted into the fastening hole 32D of the first brace component 32 and the fastening hole 35A of the second brace component 34.

[0042] 2 illustrates the passenger seat side floor brace 30 and its surrounding structure. The floor brace 30 is disposed closer to the passenger seat than the center in the vehicle width direction. A glove box 27 is disposed opposite the passenger seat. The glove box is supported by the instrument panel R / F 10 by a support mechanism (not shown).

[0043] The glove box 27 has an inner wall 27A. The inner wall 27A is parallel to the UP-FR plane. That is, the inner wall 27A faces the vehicle width direction. A gap is provided between the inner wall 27A of the glove box 27 and the floor brace 30. This gap is used as a mounting area for the ECUs 40 and 50. The mounting structure of the ECU will be described later.

[0044] <Detailed structure of floor brace> 2, the upper end of the passenger seat side floor brace 30 is bent outward in the vehicle width direction. The bent extension is the mounting piece 36. ECUs 40, 50 are attached to the mounting piece 36.

[0045] That is, the floor brace 30 extends upward from the lower end and is bent in the vehicle width direction at the upper end. For example, the floor brace 30 has an inverted L-shape when viewed from the front of the vehicle.

[0046] The floor brace 30 includes a first brace component 32 and a second brace component 34. The first brace component 32 extends in the vertical direction. A flange 30E is provided at the lower end of the first brace component 32. In other words, the first brace component 32 is connected to the floor tunnel 25 (vehicle body floor). The first brace component 32 also extends upward from the flange 30E. Furthermore, the upper end of the first brace component 32 is connected to the instrument panel R / F 10 via a brace bracket 60.

[0047] The first brace component 32 has a groove-shaped cross section except for the flange 30E. That is, the first brace component 32 includes a bottom wall 32A and side walls 32B and 32C. For example, the first brace component 32 is not bent in the vehicle width direction but extends in the up-down and front-rear directions.

[0048] The first brace component 32 is connected to the brace bracket 60 and the floor tunnel 25, and therefore has a supporting function of supporting the instrument panel R / F 10 in the up and down direction.

[0049] 3, a fastening hole 32D is drilled in an upper end of the bottom wall 32A of the first brace component 32. When assembling the floor brace 30, a stud bolt 60D of the brace bracket 60 is inserted into the fastening hole 32D.

[0050] The second brace component 34 is disposed at the upper end of the first brace component 32. The second brace component 34 is disposed in a gap between the first brace component 32 and the glove box 27 (see FIG. 2) in the vehicle width direction. The second brace component 34 includes a fastening piece 35 and an attachment piece 36. The second brace component 34 is an L-shaped component. That is, the second brace component 34 is provided with the fastening piece 35 on one side and the attachment piece 36 on the other side, with the bent portion 37 as the boundary. In other words, the attachment piece 36 is bent in the vehicle width direction relative to the fastening piece 35.

[0051] The second brace component 34 is shorter than the first brace component 32. Naturally, the second brace component 34 is also shorter than a conventional floor brace that connects the floor tunnel and the instrument panel R / F. Therefore, the tolerance of the bending angle for the second brace component 34 is set in a wider range than when bending a long object such as a conventional floor brace. In other words, processing is easier.

[0052] 3 and 4 show an example of the detailed structure of the second brace component 34. The fastening piece 35 of the second brace component 34 has a groove-shaped cross section. That is, the fastening piece 35 has a bottom wall 34A and side walls 34B and 34C. A fastening hole 35A is drilled in the bottom wall 34A. When assembling the floor brace 30, a stud bolt 60D of the brace bracket 60 is inserted into the fastening hole 35A.

[0053] The fastening piece 35 is overlapped with the upper end of the first brace component 32. Therefore, a bottom wall 34A of the fastening piece 35 faces in the vehicle width direction. The fastening piece 35 also extends in the vehicle front-rear direction and in the up-down direction. The mounting piece 36 is bent with respect to the fastening piece 35. The mounting piece 36 extends in the vehicle width direction along the instrument panel R / F 10.

[0054] The ECUs 40, 50, which are on-vehicle components, are attached to the mounting piece 36. The side wall 34C is partially omitted in the mounting piece 36. By omitting the side wall 34C, access to the bottom wall 34A of the ECU brackets 42, 52 is improved.

[0055] Fastening holes 36A, 36B are drilled in the bottom wall 34A of the mounting piece 36. Of the fastening holes 36A, 36B, the fastening hole 36A on the inner side in the vehicle width direction may be an elongated hole. For example, the fastening hole 36A is an elongated hole whose longitudinal direction is the vehicle width direction. By making the fastening hole 36A an elongated hole, it becomes possible to fine-tune the vehicle width direction positions of the ECU bracket 42 and the ECU 40 attached through the fastening hole 36A.

[0056] Thus, in the floor brace 30 according to this embodiment, the function of supporting the instrument panel R / F 10 is solely performed by the first brace component 32. The function of supporting the ECUs 40, 50 is solely performed by the second brace component .

[0057] For example, the size and number of ECUs installed in a vehicle may change depending on the vehicle model. In such a case, it is possible to accommodate the change in ECU specifications simply by changing the shape of the second brace component 34 of the floor brace 30.

[0058] 4 shows an example in which the first brace component 32 and the second brace component 34 are fastened to a brace bracket 60. Note that for the second brace component 34, part of the mounting piece 36 is not shown. As described above, the upper end of the first brace component 32, the fastening piece 35 of the second brace component 34, and the brace bracket 60 all have a groove-shaped cross section. The upper end of the first brace component 32 is placed on top of the brace bracket 60. Furthermore, the fastening piece 35 of the second brace component 34 is placed on top of the upper end of the first brace component 32.

[0059] 3 and 4, in the process of stacking the first brace component 32 and the second brace component 34 on the brace bracket 60, stud bolts 60D are inserted into the fastening holes 32D, 35A. The stud bolts 60D are then tightened with nuts. In this way, the three components, the first brace component 32, the second brace component 34, and the brace bracket 60, are stacked and fastened at the fastening point. This improves the strength of the fastening point compared to when, for example, two components are stacked.

[0060] 4, the first brace component 32 and the second brace component 34 are fastened to the brace bracket 60 only by the stud bolt 60D and a nut screwed into the stud bolt 60D. In other words, the first brace component 32 and the second brace component 34 are supported by the brace bracket 60 at one point.

[0061] Also, the groove width of the brace bracket 60 is larger than the groove width of the first brace component 32. Similarly, the groove width of the first brace component 32 is larger than the groove width of the second brace component 34.

[0062] For example, the inner groove width W2 of the first brace component 32 is approximately equal to the outer groove width W1 of the fastening piece 35. The outer groove width W1 indicates the distance between the outer surfaces of the side walls 34B and 34C. The inner groove width W2 indicates the distance between the inner surfaces of the side walls 32B and 32C. That is, the dimensional play between the second brace component 34 and the first brace component 32 is set to be small. For example, when the second brace component 34 is stacked on the first brace component 32, the side walls 32B and 32C contact the side walls 34B and 34C.

[0063] In contrast, as shown by the gap W3, the upper side wall 32B of the first brace component 32 and the upper side wall 60B of the brace bracket 60 are separated. That is, a dimensional play is set between the first brace component 32 and the brace bracket 60.

[0064] For example, during a frontal collision of the vehicle, the equipment in the engine room is pushed backward. Along with this, the instrument panel R / F10 is also pushed backward in the vehicle. At this time, as illustrated by the arrow in FIG. 4, the brace bracket 60 rotates with respect to the first brace component 32 about the stud bolt 60D, that is, the one - turn support point. By such rotation, buckling and breakage of the first brace component 32 are suppressed.

[0065] Furthermore, as the rotation of the brace bracket 60 progresses, the side wall 60B collides with the side wall 32B of the first brace component 32. At this time, the side wall 34B of the second brace component 34 is arranged inside the side wall 32B. That is, the two side walls of the side wall 32B and the side wall 34B receive the side wall 60B of the brace bracket 60. Compared with the case where the side wall 60B of the brace bracket 60 is received by one of the side walls 32B, deformation of the first brace component 32 is suppressed.

[0066] <ECU Support Structure> 2 and 3, the ECUs 40, 50 are attached to the mounting piece 36. More specifically, the ECUs 40, 50 are attached to the mounting piece 36 via ECU brackets 42, 52.

[0067] 3, the ECU bracket 42 includes an arm 42A and a support piece 42B. The arm 42A extends in the vertical direction. A fastening hole 42C is drilled at the upper end of the arm 42A. The fastening hole 42C and the fastening hole 36A of the mounting piece 36 are aligned with each other. The ECU bracket 42 is then fastened to the mounting piece 36 with bolts and nuts.

[0068] A support piece 42B is connected to the lower end of the arm 42A. The support piece 42B is approximately parallel to the UP-FR plane. In other words, the support piece 42B faces the vehicle width direction, and the ECU 40, which is an on-vehicle component, is supported by the support piece 42B. The ECU 40 is a thin rectangular parallelepiped. Among the faces constituting the rectangular parallelepiped, the main surface 40A, which has the largest area, is in contact with the support piece 42B. With this support form, as illustrated in FIG. 2, the main surface 40A faces the side surface of the glove box 27, i.e., the inner wall 27A.

[0069] The ECU bracket 52 includes arms 52A and 52C, and a support piece 52B. As illustrated in Fig. 3, the arm 52C extends forward. A fastening hole 52E is drilled in the front end of the arm 52C. The fastening hole 52E is aligned with the axis of the fastening hole 70A of the sub-bracket 70. The ECU bracket 52 is then fastened to the sub-bracket 70 with bolts and nuts. Here, the front end of the sub-bracket 70 is fixed to the instrument panel R / F 10 by welding.

[0070] The arm 52A extends in the vertical direction. A fastening hole 52D is drilled in the upper end of the arm 52A. The fastening hole 52D and the fastening hole 36B of the mounting piece 36 are aligned with each other. The ECU bracket 52 is then fastened to the mounting piece 36 with bolts and nuts.

[0071] A support piece 52B is connected to the lower end of the arm 52A. The support piece 52B is approximately parallel to the UP-FR plane. In other words, the support piece 52B faces the vehicle width direction, and the ECU 50, which is an on-vehicle component, is supported by the support piece 52B. The ECU 50 is a thin rectangular parallelepiped. Of the faces constituting the rectangular parallelepiped, the main surface 50A, which has the largest area, is in contact with the support piece 52B. With this support configuration, as illustrated in FIG. 2, the main surface 50A faces the side surface of the glove box 27 (see FIG. 2), i.e., the inner wall 27A.

[0072] In this manner, the ECUs 40, 50, which are on-vehicle components, are disposed so that the main surfaces 40A, 50A face the inner surface of the glove box 27. In other words, as illustrated in Fig. 2, the ECUs 40, 50 are disposed upright in the space between the glove box 27 and the floor brace 30. In this manner, the ECUs 40, 50 are disposed along the shape of the glove box 27.

[0073] Moreover, the ECU 90 is disposed on the upper wall 27B of the glove box 27. The upper wall 27B is parallel to the FR-RW plane. In other words, the upper wall 27B faces upward. The ECU 90 is a thin rectangular parallelepiped, and is disposed horizontally by the ECU bracket 80. In other words, the main surface 90A of the ECU 90 faces the upper wall 27B. In this manner, the ECU 90 is disposed along the shape of the glove box 27.

[0074] By arranging the ECUs 40, 50, 90 according to the shape of the glove box 27, the space around the glove box 27 can be effectively used as an arrangement space for the ECUs. Furthermore, the positions and attitudes of the ECUs 40, 50, 90 are determined according to the shape of the glove box 27. This makes it possible to suppress a reduction in the volume of the glove box 27 when the number of ECUs is increased. [Explanation of symbols]

[0075] 10 instrument panel reinforcement (instrument panel R / F), 25 floor tunnel (vehicle floor portion), 27 glove box, 27A inner wall, 30 floor brace, 32 first brace part, 34 second brace part, 35 fastening piece, 36 mounting piece, 37 bending portion, 40, 50 ECU (vehicle-mounted part), 40A main surface, 60 brace bracket (bracket).

Claims

1. An instrument panel reinforcement extending in a vehicle width direction; a floor brace that supports the instrument panel reinforcement in the vertical direction; Equipped with The floor brace includes a first brace component and a second brace component, A lower end of the first brace component is connected to a vehicle body floor, an upper end of the first brace component is connected to the instrument panel reinforcement; the second brace component is shorter than the first brace component; The second brace component includes a fastening piece that is fastened to the first brace component and an attachment piece that is bent from the fastening piece, An in-vehicle component is attached to the mounting piece. Front body structure.

2. 2. The vehicle body front structure according to claim 1, The instrument panel reinforcement has a bracket disposed thereon, the bracket extending rearward. An upper end of the first brace component and the fastening piece of the second brace component are fastened to the bracket. Front body structure.

3. 3. The vehicle body front structure according to claim 2, The upper end of the first brace component, the fastening piece of the second brace component, and the bracket have a groove-shaped cross section, The first brace component is stacked on the bracket; The fastening piece of the second brace component is overlapped on an upper end of the first brace component, The upper end of the first brace component and the fastening piece of the second brace component are supported at one point by the bracket, A side wall of the bracket and a side wall of an upper end of the first brace component are spaced apart. Front body structure.

4. 2. The vehicle body front structure according to claim 1, The mounting piece extends in the vehicle width direction along the instrument panel reinforcement. Front body structure.

5. 5. A vehicle body front structure according to claim 4, The first brace component is disposed closer to the passenger seat side than the center in the vehicle width direction, The second brace component is disposed in a gap between the first brace component and the glove box in the vehicle width direction, The on-vehicle component has a thin rectangular parallelepiped shape, The on-vehicle component is vertically disposed so that a main surface having a maximum area faces a side surface of the glove box. Front body structure.

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