Front body 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] This specification discloses a front body structure. In particular, this specification discloses the configuration of a floor brace that supports an instrument panel reinforcement.

Background Art

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

[0003] The instrument panel R / F is covered with an instrument panel, which is an interior material. The instrument panel R / F is fixed, for example, at substantially the same height as the height of the steering wheel.

[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 an A pillar, which is a skeleton 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 part that extends in the vertical direction. The lower end of the floor brace is supported by a floor tunnel. Such a floor brace is disclosed in, for example, Patent Documents 1 and 2. Also, an example in which a brace material is composed of a plurality of divided bodies is disclosed in Patent Document 3.

[0006] The upper end portion of the floor brace is connected to the instrument panel R / F. Furthermore, an extension portion that extends parallel to the instrument panel R / F is provided at the upper end portion of the floor brace. That is, the floor brace extends in the vertical direction and is bent at the upper end to extend in the vehicle width direction. Vehicle-mounted components are attached to the extension portion from the bending point. For example, vehicle-mounted components such as an electronic control unit (ECU) are attached.

Prior Art Documents

[0007] [Patent Document 1] Japanese Patent Publication No. 2013-226995 [Patent Document 2] Patent No. 6953846 [Patent Document 3] Japanese Patent Publication No. 2019-059329 [Overview of the project] [Problems that the invention aims to solve]

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

[0009] Next, when bending the upper end of the floor brace, variations in the bending angle cause the position of the lower end of the floor brace to fluctuate. The position of the lower end refers to the relative position of the lower end to the upper end. Since the floor brace is a long component, even a slight difference in the bending angle can lead 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, conventionally, the tolerance range for bending angles was set narrowly for floor brace materials that are difficult to bend.

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

[0012] This specification discloses a front body structure. The front body structure comprises an instrument panel reinforcement and a floor brace. The instrument panel reinforcement extends in the width direction of the vehicle. The floor brace supports the instrument panel reinforcement in the vertical direction. The floor brace includes a first brace component and a second brace component. The lower end of the first brace component is connected to the vehicle floor. The 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 comprises a fastening piece and a mounting piece. The fastening piece is fastened to the first brace component. The mounting piece is bent from the fastening piece. An on-board component is further attached to the mounting piece.

[0013] According to the above configuration, the floor brace is divided into a long first brace component and a short second brace component. The second brace component is then bent. Tolerances are defined during the bending process of the second brace. Because the second brace is short, the tolerance range is prevented from becoming excessively narrow.

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

[0015] According to the above configuration, at least three components (bracket, first brace component, and second brace component) are superimposed at the fastening point between the instrument panel and the floor brace. This improves the rigidity of the fastening point.

[0016] Furthermore, 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 top of the bracket. The fastening piece of the second brace component is then placed on top of the upper end of the first brace component. In addition, 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. Moreover, the side wall of the bracket and the side wall of the upper end of the first brace component are separated.

[0017] The first and second brace components are supported at a single point on the bracket. In addition, the side wall of the bracket and the side wall of the upper end of the first brace component are separated. Therefore, the first and second brace components become rotatable relative to the bracket. For example, in the event of a frontal collision of a vehicle, the instrument panel reinforcement is pushed backward by the equipment in the engine compartment. As the instrument panel reinforcement moves backward, the bracket rotates around the single support point relative to the first and second brace components. This rotation prevents bending deformation of the first brace component in particular. As the rotation of the bracket progresses further, 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 receive the side wall of the bracket. Compared to the case where the side wall of the bracket is supported by only one side wall, deformation of the first brace component is suppressed.

[0018] Furthermore, 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, multiple in-vehicle components can be aligned along the instrument panel reinforcement.

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

[0021] According to the above configuration, in-vehicle components can be arranged along the shape of the glove box.

Effect of the Invention

[0022] According to the vehicle body front structure disclosed in this specification, advanced processing technology is not required when bending the floor brace.

Brief Description of the Drawings

[0023] [Figure 1] It is an overall perspective view illustrating the vehicle body front structure according to this embodiment. [Figure 2] It is an enlarged perspective view of the periphery of the floor brace. [Figure 3] It is an exploded perspective view for explaining the assembly structure of the main configuration in FIG. 2. [Figure 4] It is an enlarged perspective view for explaining the peripheral structure of the fastening point between the floor brace and the brace bracket.

Mode for Carrying Out the Invention

[0024] Hereinafter, the vehicle body front structure according to the embodiment will be described with reference to the drawings. The shapes, materials, numbers, and numerical values described below are examples for explanation. These shapes and the like can be appropriately changed according to the specifications of the vehicle body front structure. Also, in all the drawings below, the same reference numerals are assigned to equivalent elements.

[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. Further, the vehicle height direction is indicated by the UP axis. The FR axis, RW axis, and UP axis are orthogonal to each other. The positive direction of the FR axis is forward. The positive direction of the RW axis is right. The positive direction of the UP axis is up.

[0026] Figure 1 illustrates the front body structure according to this embodiment. Specifically, the skeletal structure of the front portion of the passenger compartment is illustrated in Figure 1. As part of this skeletal structure, the instrument panel reinforcement 10 and floor braces 30 and 31 are arranged in the front body structure.

[0027] The instrument panel reinforcement 10 will be referred to as instrument panel R / F10 as appropriate below. The instrument panel R / F10 extends in the vehicle width direction. The instrument panel R / F10 is made of, for example, pipe material. The instrument panel R / F10 includes a D pipe 12 and a P pipe 14. The D pipe 12 is the pipe on the driver's side. The P pipe 14 is the pipe on the passenger side.

[0028] The D pipe 12 is more rigid than the P pipe 14. For example, the D pipe 12 has a larger diameter than the P pipe 14. As illustrated in Figure 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 / F10 supports the steering column 26. The steering column 26 extends in the longitudinal direction of the vehicle. The steering column 26 is supported by the instrument panel R / F10 via the steering support 24 and the steering bracket 22. The steering wheel 20 is attached to the rear end of the steering column 26.

[0030] In addition to steering-related equipment, the instrument panel R / F10 also houses audio equipment (not shown), front airbags, and other components.

[0031] A vehicle is equipped with multiple ECUs (onboard components). An ECU is an electronic control unit, such as a computer. ECUs are provided according to the function of the vehicle. For example, a motor ECU is installed to control the motor, which is the power source. A battery ECU is also installed to manage the battery's State of Charge (SOC), etc. Furthermore, an air conditioning ECU is installed to control the air conditioning equipment.

[0032] Placing these various ECUs under the floor would reduce the passenger compartment space. Therefore, multiple ECUs are housed within the instrument panel. For example, ECU90 is mounted on the instrument panel R / F10. ECU40 and ECU50 are mounted on the floor brace 30. The support structure for these ECUs will be described later.

[0033] The instrument panel R / F10 is fixed to the front pillars (not shown) at both ends in the vehicle width direction. For example, the instrument panel R / F10 is positioned at the same height as the steering wheel 20.

[0034] Furthermore, the instrument panel R / F10 is supported by floor braces 30 and 31. The floor braces 30 and 31 support the instrument panel R / F10 in the vertical direction. The floor braces 30 and 31 are reinforcing or structural components. The floor braces 30 and 31 are metal components, such as steel.

[0035] The floor braces 30 and 31 extend in the vertical direction. More specifically, the floor braces 30 and 31 have a boomerang structure when viewed from the side (RW axis), that is, the floor braces 30 and 31 include an upper portion that extends relatively in the longitudinal direction of the vehicle and a lower portion that extends relatively in the vertical direction of the vehicle.

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

[0037] The floor braces 30 and 31 are connected to the vehicle body floor. Specifically, flanges 30E and 31E (see Figure 1) are formed at the lower ends of the floor braces 30 and 31. Fastening holes (not shown) are drilled in the thickness direction of the flanges 30E and 31E. A floor tunnel 25 is positioned on the vehicle body floor. The floor tunnel 25 is positioned in the center of the vehicle body in the vehicle width direction. The floor tunnel 25 also extends in the longitudinal direction of the vehicle.

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

[0039] The instrument panel R / F10 is equipped with brace brackets 60 and 61. The upper ends of the floor braces 30 and 31 are connected to the instrument panel R / F10 via the brace brackets 60 and 61. The brace brackets 60 and 61 extend from the rear surface of the instrument panel R / F10 toward the rear of the vehicle. The front ends of the brace brackets 60 and 61 are welded to the instrument panel R / F10.

[0040] Figure 3 shows an exploded perspective view of the passenger-side brace bracket 60 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 widens towards the rear. This widening shape allows the brace bracket 60 to rotate relative to the floor brace 30. Details of this rotation structure will be described later.

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

[0042] Figure 2 illustrates the passenger-side floor brace 30 and its surrounding structure. The floor brace 30 is positioned on the passenger-side side of the vehicle's width direction. Opposite the passenger seat is the glove box 27. 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. In other words, the inner wall 27A faces in 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 the mounting area for the ECUs 40 and 50. The mounting structure for the ECUs will be described later.

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

[0045] In other words, the floor brace 30 extends upward from its lower end and is further bent in the vehicle width direction at its 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 comprises a first brace component 32 and a second brace component 34. The first brace component 32 extends vertically. 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 channel-shaped cross-section, except for the flange 30E. That is, the first brace component 32 has a bottom wall 32A and side walls 32B, 32C. For example, the first brace component 32 does not bend in the vehicle width direction, but extends in the vertical and longitudinal directions.

[0048] The first brace component 32 is connected to the brace bracket 60 and the floor tunnel 25, and therefore plays a supporting role in supporting the instrument panel R / F 10 in the vertical direction.

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

[0050] The second brace component 34 is positioned at the upper end of the first brace component 32. The second brace component 34 is positioned in the gap in the vehicle width direction between the first brace component 32 and the glove box 27 (see Figure 2). The second brace component 34 comprises a fastening piece 35 and a mounting piece 36. The second brace component 34 is an L-shaped component. That is, the second brace component 34 has a fastening piece 35 on one side and a mounting piece 36 on the other side, with the bent portion 37 as the boundary. In other words, the mounting 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 the conventional floor brace connecting the floor tunnel and the instrument panel R / F. Therefore, the bending angle tolerance for the second brace component 34 can be set over a wider range compared to bending long components like conventional floor braces. In other words, processing becomes easier.

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

[0053] The fastening piece 35 is superimposed on the upper end of the first brace component 32. Therefore, the bottom wall 34A of the fastening piece 35 faces in the vehicle width direction. The fastening piece 35 also extends in the vehicle's longitudinal and vertical directions. The mounting piece 36 is bent relative to the fastening piece 35. Along the instrument panel R / F 10, the mounting piece 36 extends in the vehicle width direction.

[0054] The mounting piece 36 is used to mount the ECUs 40 and 50, which are in-vehicle components. In the mounting piece 36, the side wall 34C is partially omitted. Omitting the side wall 34C improves access to the bottom wall 34A of the ECU brackets 42 and 52.

[0055] Fastening holes 36A and 36B are drilled in the bottom wall 34A of the mounting piece 36. Of the fastening holes 36A and 36B, the fastening hole 36A on the inside in the vehicle width direction may be an elongated hole. For example, fastening hole 36A is an elongated hole with the vehicle width direction as its longitudinal direction. By making fastening hole 36A an elongated hole, it becomes possible to finely adjust the vehicle width direction position of the ECU bracket 42 and ECU 40 to which fastening hole 36A is attached.

[0056] Thus, in the floor brace 30 according to this embodiment, the first brace component 32 is exclusively responsible for supporting the instrument panel R / F 10, and the second brace component 34 is exclusively responsible for supporting the ECUs 40 and 50.

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

[0058] Figure 4 shows an example in which the first brace component 32 and the second brace component 34 are fastened to the brace bracket 60. Note that a portion of the mounting piece 36 of the second brace component 34 is omitted from the illustration. 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] As illustrated in Figures 3 and 4, stud bolts 60D are inserted into fastening holes 32D and 35A during the process of stacking the first brace component 32 and the second brace component 34 onto the brace bracket 60. The stud bolts 60D are then tightened with nuts. In this way, at the fastening point, the three components—the first brace component 32, the second brace component 34, and the brace bracket 60—are stacked and fastened together. Compared to stacking, for example, two components, the strength of the fastening point is improved.

[0060] Furthermore, as illustrated in Figure 4, the first brace component 32 and the second brace component 34 are fastened to the brace bracket 60 only by stud bolts 60D and nuts screwed into them. In other words, the first brace component 32 and the second brace component 34 are supported at a single point on the brace bracket 60.

[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 and the side walls 34B and 34C are in contact.

[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. 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 only one side wall of the side wall 32B, deformation of the first brace component 32 is suppressed.

[0066] <ECU Support Structure> As illustrated in Figures 2 and 3, the ECUs 40 and 50 are mounted on the mounting piece 36. More specifically, the ECUs 40 and 50 are mounted on the mounting piece 36 via the ECU brackets 42 and 52.

[0067] Referring to Figure 3, the ECU bracket 42 comprises an arm 42A and a support piece 42B. The arm 42A extends vertically. 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. 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. That is, the support piece 42B faces in the vehicle width direction, and the ECU 40, which is an on-board component, is supported by the support piece 42B. The ECU 40 is a thin rectangular parallelepiped. Of the faces that make up the rectangular parallelepiped, the main surface 40A, which has the largest area, is in contact with the support piece 42B. With this support configuration, as illustrated in Figure 2, the main surface 40A faces the side of the glove box 27, that is, the inner wall 27A.

[0069] The ECU bracket 52 comprises arms 52A, 52C, and a support piece 52B. As illustrated in Figure 3, arm 52C extends forward. A fastening hole 52E is drilled at the front end of arm 52C. The fastening hole 52E is axial with the fastening hole 70A of the sub-bracket 70. The ECU bracket 52 is then bolted and nut fastened to the sub-bracket 70. The front end of the sub-bracket 70 is welded to the instrument panel R / F10.

[0070] Arm 52A extends vertically. A fastening hole 52D is drilled at the upper end of arm 52A. The fastening hole 52D and the fastening hole 36B of the mounting piece 36 are aligned. 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. That is, the support piece 52B faces in the vehicle width direction, and the ECU 50, which is an on-board component, is supported by the support piece 52B. The ECU 50 is a thin rectangular parallelepiped. Of the faces that make up 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 Figure 2, the main surface 50A faces the side of the glove box 27 (see Figure 2), that is, the inner wall 27A.

[0072] Thus, the ECUs 40 and 50, which are in-vehicle components, are positioned so that their main surfaces 40A and 50A face the inner surface of the glove box 27. In other words, as illustrated in Figure 2, the ECUs 40 and 50 are positioned vertically in the space between the glove box 27 and the floor brace 30. In this way, the ECUs 40 and 50 are positioned along the shape of the glove box 27.

[0073] Furthermore, the ECU 90 is positioned 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 positioned horizontally by the ECU bracket 80. That is, the main surface 90A of the ECU 90 faces the upper wall 27B. In this way, the ECU 90 is positioned along the shape of the glove box 27.

[0074] By positioning the ECUs 40, 50, and 90 along the shape of the glove box 27, the space surrounding the glove box 27 can be effectively utilized as space for the ECUs. Furthermore, the position and orientation of the ECUs 40, 50, and 90 are determined along the shape of the glove box 27. This suppresses the reduction in the volume of the glove box 27 when the number of ECUs increases. [Explanation of symbols]

[0075] 10 Instrument panel reinforcement (instrument panel R / F), 25 Floor tunnel (passenger compartment floor), 27 Glove box, 27A Inner wall, 30 Floor brace, 32 First brace component, 34 Second brace component, 35 Fastening piece, 36 Mounting piece, 37 Bending section, 40, 50 ECU (onboard component), 40A Main surface, 60 Brace bracket (bracket).

Claims

1. An instrument panel reinforcement extending in the width direction of the vehicle, 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, The lower end of the first brace component is connected to the vehicle body floor, The 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 comprises a fastening piece that is fastened to the first brace component and a mounting piece that is bent from the fastening piece. An in-vehicle component is attached to the aforementioned mounting piece. The mounting piece extends in the vehicle width direction along the instrument panel reinforcement, The first brace component is positioned on the passenger side of the center in the width direction of the vehicle. The second brace component is positioned in the gap between the first brace component and the glove box in the vehicle width direction. The aforementioned in-vehicle component has a thin, rectangular parallelepiped shape. The vehicle components are arranged vertically such that the main surface with the largest area faces the side of the glove box. Front body structure.

2. The front body structure according to claim 1, The instrument panel reinforcement is provided with a bracket that extends to the rear. The 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. The front body 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 placed on the bracket, The fastening piece of the second brace component is placed on top of the 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. The side wall of the bracket and the side wall of the upper end of the first brace component are separated. Front body structure.

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