JP7317076B2 - Cabin front structure - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle interior front structure including a brake pedal and its surroundings.

In many suspension-type brake pedals for vehicles, the upper end of an arm portion is rotatably supported by a pedal bracket. The pedal bracket is attached to the dash panel in the front part of the passenger compartment. A pedal body that is stepped on by the driver is integrally provided at the lower end of the arm portion of the brake pedal, and a base portion of the arm portion is connected to a brake booster on the side of the engine room. In such a structure of the brake pedal support portion, when an impact load is input from the front of the vehicle, the arm portion of the brake pedal is pushed through the brake booster on the engine room side, and the arm portion is largely displaced toward the passenger compartment. There is concern that

As a countermeasure against this, there has been devised a passenger compartment front structure in which a backward movement prevention member is provided to restrict excessive rearward displacement of the brake pedal when an impact load is applied from the front of the vehicle (see, for example, Patent Document 1). .

In the vehicle interior front structure described in Patent Document 1, a backward movement prevention member is welded to a beam member (steering hanger beam) that extends in the vehicle width direction and fixes the steering column to the vehicle body, and the front end portion of the backward movement prevention member is fixed. faces the arm portion of the brake pedal from the rear side of the vehicle. In this vehicle interior front structure, when the arm portion of the brake pedal is displaced rearward when an impact load is input from the front of the vehicle, the arm portion abuts against the backward movement prevention member, thereby restricting excessive rearward displacement of the arm portion. be.

JP-A-2000-142339

In the vehicle interior front structure described in Patent Document 1, a reverse movement prevention member is welded and fixed to the same beam member, separately from a steering hanger that fixes the steering column to a beam member (steering hanger beam). Therefore, in the vehicle interior front structure described in Patent Document 1, the number of parts to be fixed to the beam member increases, and the number of man-hours for assembling the parts also increases.

SUMMARY OF THE INVENTION Accordingly, the present invention provides a passenger compartment front structure capable of restricting excessive rearward displacement of the brake pedal when an impact load is applied, with a simple configuration that can suppress an increase in the number of parts and an increase in the number of assembly man-hours. and

In order to solve the above problems, the vehicle interior front structure according to the present invention employs the following configuration.
That is, the vehicle interior front structure according to the present invention includes a steering column (for example, the steering column 5 of the embodiment) that rotatably supports a steering shaft, and a steering column that is disposed above the steering column and extends along the vehicle width direction. A steering hanger (e.g., steering hanger 7 in the embodiment) fixed to the vehicle body via an extending beam member (e.g., steering hanger beam 6 in the embodiment); A column support bracket (for example, the column support bracket 10 of the embodiment) that is fixed and supports the front portion of the steering column, and a rotation fulcrum on the vehicle body side (for example, and a brake pedal (for example, the brake pedal 4 of the embodiment) rotatably supported in the longitudinal direction on the support shaft 14 of the embodiment, and the column support bracket is fixed to the lower surface of the steering hanger. a base wall (eg, base wall 10b in the embodiment) extending downward from the front of the base wall (eg, front extending wall 10f in the embodiment); and downward from the rear of the base wall. a rear extending wall (for example, a rear extending wall 10r in the embodiment) extending downward from the pivot point of the brake pedal (for example, a rear extending wall 10r in the embodiment); A pedal regulating portion (for example, the pedal regulating portion 21 of the embodiment) that faces the arm portion 12) from the rear and contacts the arm portion when an impact load is input from the front is integrally provided , and the base wall, the The front extending wall and the rear extending wall are configured by a first metal plate block (for example, the first metal plate block 16 of the embodiment), and the pedal restricting portion is the front extending wall. It is characterized by bending toward the front side of the vehicle with respect to an extended wall base portion (for example, the extended wall base portion 20 of the embodiment) extending downward from the base wall .

With the above configuration, when an impact load is input from the front of the vehicle and the arm of the brake pedal is displaced toward the rear of the vehicle by a predetermined amount or more, the arm comes into contact with the pedal restricting portion of the column support bracket. A load input to the column support bracket is supported by the beam member via the steering hanger. This restricts excessive rearward displacement of the arm of the brake pedal. Further, the column support bracket is fixed to the lower surface of the steering hanger on the front side of the beam member, and the pedal restricting portion is provided on the front extension wall extending downward from the base wall. Therefore, when an impact load is input from the front, the pedal restricting portion abuts at a position greatly spaced downward from the pivotal fulcrum of the arm portion of the brake pedal. Therefore, the rearward displacement of the arm can be efficiently and reliably restricted.

In this case, the distal end side of the pedal restricting portion faces the direction in which the arm portion of the brake pedal is displaced backward when an impact load is applied, and the strength of the pedal restricting portion increases. Therefore, when an impact load is input, the load input from the brake pedal to the pedal restricting portion can be received by the front extending wall with high strength.

A reinforcement flange (for example, the reinforcement flange 22 of the embodiment) bent forward may be continuously provided at the vehicle width direction outer end of the extending wall base portion and the pedal restricting portion.

In this case, the bending strength of the extending wall base portion of the front extending wall and the pedal restricting portion is efficiently increased by the reinforcement flange. Therefore, when an impact load is input, the load input from the brake pedal to the pedal restricting portion can be received by the front extending wall with higher strength.

The column support bracket may include a connecting wall (for example, the connecting wall 23 of the embodiment) that extends in the front-rear direction and the up-down direction and connects the front extending wall and the rear extending wall.

In this case, the load input from the brake pedal to the pedal control portion when the impact load is input is transmitted to the steering hanger through the front extending wall and the base wall, and is also transmitted through the connecting wall, the rear extending wall, and the base wall. transmitted to the hanger. Therefore, the load input to the pedal restricting portion can be distributed to the front extending wall and the rear extending wall and transmitted to the steering hanger side, and the load input from the brake pedal to the pedal restricting portion can be transferred to the steering hanger with higher strength. can be accepted by

The front extending wall is formed to extend longer from the base wall than the rear extending wall, and the connecting wall is a second metal plate block separate from the first metal plate block. (For example, the second metal plate block 24 of the embodiment), and is formed in a crank-like side view shape in which the front extending wall side is low and the rear extending wall side is high. You can do it.

In this case, since the extension length of the front extension wall is long, when an impact load is applied, the rearward displacement of the arm portion of the brake pedal can be restricted by the pedal restriction portion at a position further away from the pivot point. can be done. In addition, since the rear extending wall is shorter than the front extending wall, it is possible to reduce the overall size and weight of the first metal plate block.
Furthermore, since the connecting wall made of the second metal plate block is formed in a crank-like side view shape with the front extending wall side being low and the rear extending wall side being high, when an impact load is input, The rearward displacement load of the arm portion of the brake pedal can be efficiently transmitted to the base side of the rear extending wall. Therefore, when this configuration is employed, the rearward displacement load of the arm portion of the brake pedal can be received with higher rigidity. In addition, since the connecting wall has a crank shape in side view, it is possible to reduce the overall size and weight of the second metal plate block while ensuring the above-mentioned function of the connecting wall.

The second metal plate block includes the connecting wall extending in the front-rear direction and the vertical direction, a front flange (for example, the front flange 25 of the embodiment) extending in the vehicle width direction while bending from the front end of the connecting wall, a rear flange (for example, the rear flange 26 of the embodiment) that extends bent in the vehicle width direction from the rear end of the connecting wall, and the front flange entirely overlaps the rear surface of the front extending wall. An upper portion of the rear flange may be overlapped and welded to the front surface of the rear extending wall, and a lower end thereof may extend below the lower end of the rear extending wall.

In this case, when the rearward displacement load of the brake pedal is input to the pedal control portion when the impact load is input, the load is transmitted to the connecting wall through the entire surface of the front flange. The load transmitted to the connecting wall is transmitted to the rear extending wall through the overlapping portion of the upper portion of the rear flange. At this time, since the connecting wall is formed in a crank-like side view shape with the rear extending wall side being higher, if the upper part of the rear flange overlaps with the rear extending wall, the distance from the connecting wall to the rear extending wall is sufficient. load can be transmitted to In addition, since the lower end of the rear flange extends below the lower end of the rear extending wall, arc welding or the like can be easily applied to the boundary between the rear flange and the lower end of the rear extending wall. Therefore, when this configuration is adopted, it is possible to enhance welding workability in manufacturing the column support bracket.

The connection wall may be provided with a reinforcing bead (for example, the reinforcing bead 27 in the embodiment) that at least has a central region in the front-rear direction that slopes upward toward the rear.

In this case, when an impact load is input, the rearward displacement load of the brake pedal can be efficiently transmitted from the pedal restricting portion to the base side of the rearward extending wall through the inclined portion of the reinforcing bead. Therefore, when this configuration is adopted, the rearward displacement of the brake pedal can be restricted more reliably.

The reinforcing bead extends substantially along the crank-like side view shape of the connecting wall, and has a front end and a rear end in contact with the rear surface of the front extending wall and the front surface of the rear extending wall, respectively. Also good.

In this case, when an impact load is input, the rearward displacement load of the brake pedal input through the overlapping portion of the front extension and the front flange is efficiently transferred to the overlapping portion of the rear flange and rear extension through the reinforcing bead. can be transmitted. Therefore, when this configuration is adopted, the rearward displacement of the brake pedal can be more reliably restricted.

In the vehicle body front structure of the present invention, since the pedal restricting portion is provided integrally with the front extending wall of the column support bracket, excessive rearward displacement of the arm portion of the brake pedal occurs when an impact load is applied from the front of the vehicle. can be regulated by the pedal regulating portion of the column support bracket. Therefore, when the vehicle body front structure of the present invention is adopted, excessive rearward displacement of the brake pedal when an impact load is applied is restricted by a simple configuration that can suppress an increase in the number of parts and an increase in the number of assembly steps. be able to.

FIG. 2 is a front view of the front part of the passenger compartment of the vehicle of the embodiment, viewed from the driver's seat side. Sectional drawing which follows the II-II line of FIG. FIG. 3 is an enlarged view of part III of FIG. 2; The perspective view which shows the assembly body of the member of the compartment front part of embodiment. 3 is an exploded perspective view of the column support bracket of the embodiment; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. In the following description, directions such as up and down, front and back, etc., correspond to the directions when the vehicle in the horizontal posture is facing forward. In addition, an arrow FR pointing to the front of the vehicle, an arrow UP pointing to the upper side of the vehicle, and an arrow LH pointing to the left side of the vehicle are shown at appropriate locations in the drawing.

FIG. 1 is a front view of the front part of the passenger compartment of the vehicle 1 according to the present embodiment, viewed from the driver's seat side. FIG. 2 is a cross-sectional view along line II-II of FIG.
Reference numeral 2 in FIG. 1 is a steering wheel, reference numeral 3 is an instrument panel in front of the driver's seat, and reference numeral 4 is a brake pedal. The steering wheel 2 is connected to the end of a steering shaft (not shown). The steering shaft is rotatably supported by the steering column 5 shown in FIG.

As shown in FIG. 2, the steering column 5 faces in the longitudinal direction of the vehicle and is inclined so that its height gradually increases toward the rear side (toward the steering wheel 2). The steering column 5 is supported by a steering hanger beam 6, which is a beam member extending along the vehicle width direction. The steering hanger beam 6 is fixed to front pillars (vehicle body) (not shown) at both ends thereof in the vehicle width direction, and is supported at other portions of the vehicle body via stays (not shown) at appropriate portions in the extending direction. The fixing form of the steering hanger beam 6 to the vehicle body is not limited to this.

A pair of left and right steering hangers 7 are fixed to the steering hanger beam 6 . The steering hanger 7 is a metal support member that suspends and supports the steering column 5 from above, and extends from the steering hanger beam 6 toward the vehicle front side. Front ends of the left and right steering hangers 7 are connected to a vehicle body member (not shown) in front of the driver's seat. A pair of steering hangers 7 are arranged above the left and right sides of the front region of the steering column 5 . A column support bracket 10, which will be described in detail later, is fixed to the lower surfaces of the pair of steering hangers 7 on the front side (lower surfaces on the front side of the steering hanger beam 6). A front portion of the steering column 5 is connected to the column support bracket 10 . A front region of the steering column 5 is supported by a steering hanger beam 6 via a pair of steering hangers 7 and a column support bracket 10 .

Another steering hanger 8 extending rearward of the vehicle is fixed to the steering hanger beam 6 . The steering hanger 8 is a metal support member that suspends and supports the steering column 5 from above, and a rear region of the steering column 5 is supported at the rear of the steering hanger 8 via a bracket (not shown). Therefore, the steering column 5 is supported by the vehicle body through the front and rear steering hangers 7 and 8 and the steering hanger beam 6 .

As shown in FIG. 2, a dash panel 9 is arranged in front of the driver's seat to separate it from the engine room. A pedal bracket 11 is fixed to the front side of the steering column 5 on the rear surface of the dash panel 9 (the surface facing the driver's cab). A suspended brake pedal 4 is rotatably supported by the pedal bracket 11 .

The brake pedal 4 has an arm portion 12 whose upper end is rotatably supported by the pedal bracket 11 and a pedal body portion 13 provided at the lower end of the arm portion 12 . An upper end portion of the arm portion 12 is supported by a support shaft 14 (rotational fulcrum) fixed to the pedal bracket 11 . The support shaft 14 extends in the width direction of the vehicle, and the upper end portion of the arm portion 12 is supported by the support shaft 14 so as to be rotatable in the longitudinal direction of the vehicle body. The support shaft 14 (rotating fulcrum of the brake pedal 4 ) is arranged forwardly and upwardly of the column support bracket 10 .

A load transmission piece 15 extending downward to face the front portion of the column support bracket 10 is provided at the base of the arm portion 12 (near the support shaft 14). In this embodiment, the load transmission piece 15 is configured as a separate component from the main body of the arm 12, and is integrally fixed to the main body of the arm 12 by welding or the like. However, the load transmission piece 15 may be formed integrally with the body portion of the arm portion 12 .

FIG. 3 is an enlarged view of section III in FIG. 2, and FIG. 4 is a perspective view showing an assembly of members in the front part of the passenger compartment. The assembly shown in FIG. 4 consists of a steering hanger beam 6, steering hangers 7 and 8, and a column support bracket 10. As shown in FIG. 5 is an exploded perspective view of the column support bracket 10. FIG.
The column support bracket 10 includes a base wall 10b fixed to the lower surface of the front side of the steering hanger 7, a front extension wall 10f extending obliquely downward rearward from the front end of the base wall 10b, and a rear end of the base wall 10b. and a rear extension wall 10r that extends obliquely downward to the rear. A lower surface on the front side of the steering hanger 7 is inclined downward toward the front side of the vehicle. Therefore, the base wall 10b is inclined downward toward the front side of the vehicle along the lower surface of the steering hanger 7 on the front side. The base wall 10b, the front extending wall 10f, and the rear extending wall 10r are composed of a first metal plate block 16. As shown in FIG. The first metal plate block 16 is formed by press molding, for example.

The base wall 10b is formed in a substantially rectangular shape elongated in the vehicle width direction, and bolt insertion holes 17 are formed at both ends thereof in the vehicle width direction. Shafts of bolts 18 (see FIG. 3) are inserted through these bolt insertion holes 17 from below. The base wall 10b is fixed to the lower surfaces of the left and right steering hangers 7 on the front side by bolts 18 inserted through the respective bolt insertion holes 17. As shown in FIG. A pair of elongated holes 19 are formed in the central region of the base wall 10b in the vehicle width direction. A bolt (not shown) for connecting the front portion of the steering column 5 to the column support bracket 10 is inserted through each of these elongated holes 19 .

The front extension wall 10f has a longer extension length from the base wall 10b than the rear extension wall 10r. The front extending wall 10f includes an extending wall base portion 20 that extends linearly obliquely downward and rearward from the front end of the base wall 10b, and a pedal restricting portion 21 that extends obliquely forward and downward from the lower end of the extending wall base portion 20. and have A distal end portion of the pedal restricting portion 21 faces the load transmitting piece 15 of the arm portion 12 of the brake pedal 4 from the rear side of the vehicle. The tip portion of the pedal restricting portion 21 abuts on the arm portion 12 of the brake pedal 4 that is displaced rearward when an impact load is input from the front of the vehicle. The pedal restricting portion 21 thereby restricts the rearward displacement of the arm portion 12 .

A reinforcement flange 22 that bends toward the front side of the vehicle is continuously provided at the vehicle width direction outer end of the extension wall base portion 20 of the front extension wall 10f and the pedal restriction portion 21 . The reinforcing flange 22 increases the rigidity from the extending wall base 20 to the pedal restricting portion 21, and when an impact load is input from the front to the distal end portion of the pedal restricting portion 21, the pedal restricting portion 21 does not move against the extending wall base 20. Suppress the opening deformation of

The column support bracket 10 includes a pair of connecting walls 23 connecting the front extending wall 10f and the rear extending wall 10r. The connecting wall 23 extends in the longitudinal direction and the vertical direction of the vehicle, and connects the front extending wall 10f and the rear extending wall 10r at each end of the first metal plate block 16 on the outside in the vehicle width direction. Each connecting wall 23 is composed of a first metal plate block 16 and a separate second metal plate block 24 . The second metal plate block 24 includes the connecting wall 23, a front flange 25 extending from the front end of the connecting wall 23 while being bent in the vehicle width direction, and a rear end of the connecting wall 23 being bent and extending in the vehicle width direction. and a rear flange 26 .

The front surface of the front flange 25 is overlapped and welded to the rear surface of the extension wall base 20 of the front extension wall 10f, and the rear surface of the rear flange 26 is overlapped and welded to the front surface of the rear extension wall 10r. there is The front flange 25 and the rear flange 26 of each second metal plate block 24 extend inward in the vehicle width direction of the first metal plate block 16 . That is, the front flange 25 and the rear flange 26 are bent inward in the vehicle width direction of the first metal plate block 16 with respect to the connecting wall 23 at a substantially right angle. Each base end of the front flange 25 and the rear flange 26 (connecting portion with the connection wall 23) is connected to each of the front extension wall 10f (extension wall base portion 20) and the rear extension wall 10r of the first metal plate block 16. Aligned with the widthwise outer edge.

Each connecting wall 23 of the second metal plate block 24 is formed in a crank-like shape in side view so that the front extending wall 10f side of the first metal plate block 16 is at a lower level and the rear extending wall 10r side is at a higher level. It is That is, each connecting wall 23 extends in the front-rear direction and has a constant vertical width, and connects the low extension portion 23l and the high extension portion 23h by extending substantially in the vertical direction. and a connecting portion 23c. A front flange 25 having the same vertical width as the low extension 23l is connected to the front end of the low extension 23l. A rear flange 26 having a vertical width is continuously provided.
As shown in FIG. 4, the front flange 25 of each second metal plate block 24 is welded so that the entire surface is overlapped with the lower rear surface of the front extension wall 10f (extension wall base portion 20). . The rear flange 26 of each second metal plate block 24 has its upper portion overlapped with the front surface of the rear extension wall 10r and welded thereto, and its lower end extends below the lower end of the rear extension wall 10r. .

The connection wall 23 of each second metal plate block 24 is formed with a reinforcing bead 27 extending in a crank shape along the side view shape of the connection wall 23 . The reinforcing bead 27 has a mountain-shaped cross section that protrudes in the vehicle width direction and extends like a crank in the front-rear direction of the connecting wall 23 . As shown in FIG. 5, the reinforcement bead 27 extends forward and backward substantially in parallel with the base wall 10b of the first metal plate block 16 at the portions formed on the lower extending portion 23l and the higher extending portion 23h of the connecting wall 23. A portion (central region in the front-rear direction) formed at the connection portion 23c of the connection wall 23 is inclined upward toward the vehicle rear side. That is, the reinforcing bead 27 is provided with an inclined portion 27s that is inclined upward toward the vehicle rear side in the central region in the vehicle front-rear direction.
Further, the front end portion of the reinforcement bead 27 extends to the front end portion of the connecting wall 23 (lower extension portion 23l), and the rear end portion of the reinforcement bead 27 extends to the rear end portion of the connection wall 23 (higher extension portion 23h). there is The front and rear ends of the reinforcing bead 27 are in contact with the rear surface of the front extending wall 10f and the front surface of the rear extending wall 10r of the first metal plate block 16, respectively.

<Behavior when impact load is input>
Next, the behavior of the front part of the passenger compartment when an impact load is input from the front of the vehicle will be described.
When an impact load is input from the front of the vehicle and the front part of the engine room is crushed and deformed, the power train in the engine room is displaced rearward, and the arm part 12 of the brake pedal 4 pushes toward the driver's compartment (rearward) through the brake booster. be done. At this time, when the arm portion 12 is displaced to the rear side of the vehicle by a predetermined amount or more, the load transmission piece 15 of the arm portion 12 abuts against the pedal restricting portion 21 at the lower end of the front extending wall 10f of the column support bracket 10 . Thus, when the backward load of the brake pedal 4 is input to the pedal restricting portion 21 , the load is received by the steering hanger beam 6 (beam member) through the column support bracket 10 and the steering hanger 7 . Since the steering hanger beam 6 is firmly fixed to each part of the vehicle body such as the left and right front pillars, excessive rearward displacement of the arm portion 12 of the brake pedal 4 is reliably suppressed at this time.

<Effects of Embodiment>
In the passenger compartment front structure of this embodiment, the pedal restricting portion 21 is provided integrally with the front extending wall 10f of the column support bracket 10, so that when an impact load is input from the front of the vehicle, the arm of the brake pedal 4 Excessive rearward displacement of the portion 12 can be regulated by the pedal regulating portion 21 of the column support bracket 10 . Therefore, when the vehicle body front structure of the present invention is adopted, the excessive rearward displacement of the brake pedal 4 when an impact load is applied is restricted by a simple configuration that can suppress an increase in the number of parts and an increase in the number of assembly steps. can do.

In addition, in the vehicle interior front structure of this embodiment, the column support bracket 10 is fixed to the lower surface of the steering hanger 7 on the front side of the steering hanger beam 6, and the pedal restricting portion 21 extends downward from the base wall 10b. It is provided on the front extending wall 10f. Therefore, when an impact load is input from the front of the vehicle, the rearward displacement of the arm portion 12 is prevented by the pedal restricting portion 21 at a position greatly spaced downward from the support shaft 14 (rotating fulcrum) of the arm portion 12 of the brake pedal 4. can be regulated efficiently. Therefore, the passenger compartment front structure of the present embodiment can reliably restrict the rearward displacement of the arm portion 12 while having a simple configuration.

In addition, the vehicle interior front structure of the present embodiment includes an extension wall base portion 20 extending downward from the base wall 10b on the front extension wall 10f of the column support bracket 10, and an extension wall base portion 20 extending downward from the lower end of the extension wall base portion 20 toward the front of the vehicle. A pedal restricting portion 21 is provided which is bent and extends. Therefore, the distal end side of the pedal restricting portion 21 faces the direction in which the arm portion 12 of the brake pedal 4 is displaced backward when an impact load is applied, and the strength of the pedal restricting portion 21 increases. Therefore, when this configuration is adopted, the load input from the arm portion 12 of the brake pedal 4 to the pedal restricting portion 21 when an impact load is input can be received by the forward extending wall 10f with high strength.

Further, in the vehicle interior front structure of the present embodiment, of the front extending wall 10f of the column support bracket 10, the extending wall base portion 20 and the pedal restricting portion 21 of the extending wall base portion 20 and the pedal restricting portion 21 are provided at the outer end portions in the vehicle width direction. A bending reinforcing flange 22 is continuously provided. Therefore, the bending strength of the extending wall base portion 20 of the front extending wall 10f and the pedal restricting portion 21 can be efficiently increased by the reinforcement flange 22. As shown in FIG. Therefore, when this configuration is adopted, the load input from the arm portion 12 of the brake pedal 4 to the pedal restricting portion 21 when the impact load is input can be received by the front extending wall 10f with higher strength.

Further, in the vehicle interior front structure of the present embodiment, the column support bracket 10 is provided with a connecting wall 23 that extends in the longitudinal direction and the vertical direction of the vehicle and connects the front extending wall 10f and the rear extending wall 10r. Therefore, when an impact load is input, the load input from the arm portion 12 of the brake pedal 4 to the pedal control portion 21 can be transmitted to the steering hanger 7 through the front extending wall 10f and the base wall 10b. 23, the rear extending wall 10r, and the base wall 10b. Therefore, when this configuration is adopted, the impact load input from the brake pedal 4 to the pedal restricting portion 21 can be distributed to the front extending wall 10f and the rear extending wall 10r and transmitted to the steering hanger 7 side, thereby braking the brake. The impact load input from the arm portion 12 of the pedal 4 to the pedal restricting portion 21 can be received by the steering hanger 7 with higher strength.

Further, in the case of the vehicle interior front structure of the present embodiment, the column support bracket 10 has the front extension wall 10f set to extend longer from the base wall 10b than the rear extension wall 10r. Therefore, when an impact load is input from the front of the vehicle, the rearward displacement of the arm portion 12 of the brake pedal 4 can be efficiently regulated by the pedal regulating portion 21 at a position spaced apart from the support shaft 14 (rotary fulcrum). can be done. On the other hand, in this configuration, since the extending length of the rear extending wall 10r is shorter than the extending length of the front extending wall 10f, it is possible to reduce the overall size and weight of the first metal plate block 16. can.

Furthermore, in the passenger compartment front structure of this embodiment, the connection wall 23 made of the second metal plate block 24 of the column support bracket 10 is low on the front extending wall 10f side and high on the rear extending wall 10r side. It is formed in a crank-like side view shape. Therefore, when an impact load is input from the front of the vehicle, the rearward displacement load of the arm portion 12 of the brake pedal 4 can be efficiently transmitted through the connecting wall 23 to the base side of the rear extending wall 10r. Therefore, when this configuration is adopted, the rearward displacement load of the arm portion of the brake pedal 4 can be received with higher rigidity.
In addition, in this configuration, since the side view shape of the connecting wall 23 is crank-shaped, the size and weight of the second metal plate block 24 as a whole can be reduced while ensuring the above function of the connecting wall 23. be able to.

In addition, in the vehicle interior front structure of the present embodiment, the second metal plate block 24 of the column support bracket 10 includes a connecting wall 23 and a front flange 25 extending from the front end portion of the connecting wall 23 while being bent in the vehicle width direction. and a rear flange 26 bent and extending in the vehicle width direction from the rear end portion of the connecting wall 23 . The front flange 25 is entirely overlapped and welded to the rear surface of the front extending wall 10f, and the upper part of the rear flange 26 is overlapped and welded to the front surface of the rear extending wall 10r. As a result, when a rearward displacement load of the brake pedal 4 is input to the pedal restricting portion 21 when an impact load is input, the load is transmitted to the connecting wall 23 through the entire surface of the front flange 25, and the load is transferred to the upper portion of the rear flange 26. It is transmitted to the rear extending wall 10r through the overlapping portion. At this time, since the connecting wall 23 is formed in a crank-like shape in side view with the rear extending wall 10r side being higher, if the upper part of the rear flange 26 overlaps the rear extending wall 10r, then the connecting wall 23 will not move backward. A sufficient load can be transmitted to the extension wall 10r.
Furthermore, in the passenger compartment front structure of the present embodiment, the lower end of the rear flange 26 extends below the lower end of the rear extending wall 10r, so the boundary between the rear flange 26 and the lower end of the rear extending wall 10r. Welding, such as arc welding, can be easily applied. Therefore, when this configuration is adopted, it is possible to enhance welding workability in manufacturing the column support bracket 10 .

In addition, in the passenger compartment front structure of the present embodiment, a reinforcing bead 27 is provided on the connecting wall 23 of the second metal plate block 24 so that at least the central region in the front-rear direction inclines upward toward the rear. Therefore, when an impact load is input from the front of the vehicle, the rearward displacement load of the brake pedal 4 can be efficiently transmitted through the inclined portion of the reinforcing bead 27 from the pedal restricting portion 21 to the base side of the rear extending wall 10r. . Therefore, when the vehicle interior front structure of the present embodiment is employed, the rearward displacement of the brake pedal 4 can be more reliably restricted when an impact load is input from the front of the vehicle.

Furthermore, in the passenger compartment front structure of the present embodiment, the reinforcing bead 27 extends substantially along the crank-like shape of the connecting wall 23 when viewed from the side, and the front and rear ends of the reinforcing bead 27 are respectively formed by the first metal plate. It abuts on the rear surface of the front extending wall 10f of the block 16 and the front surface of the rear extending wall 10r. Therefore, when an impact load is input from the front of the vehicle, the rearward displacement load of the brake pedal 4 input through the overlapping portion of the front extension wall 10f and the front flange 25 is transferred through the reinforcement bead 27 to the rear flange 26 and the rear extension. The load can be efficiently transmitted to the overlapping portion of the portion 10r. Therefore, when this configuration is employed, the rearward displacement of the brake pedal 4 can be restricted more reliably.

The present invention is not limited to the above-described embodiments, and various design changes are possible without departing from the gist of the present invention.

4 -- Brake pedal 5 -- Steering column 6 -- Steering hanger beam (beam member)
7 Steering hanger 7
DESCRIPTION OF SYMBOLS 10... Column support bracket 10b... Base wall 10f... Front extension wall 10r... Rear extension wall 12... Arm part 14... Support shaft (rotating fulcrum)
DESCRIPTION OF SYMBOLS 16... 1st metal plate block 20... Extension wall base part 21... Pedal control part 22... Reinforcement flange 23... Connection wall 24... 2nd metal plate block 25... Front flange 26... Rear flange 27... Reinforcement bead

Claims (7)

a steering column that rotatably supports the steering shaft;
a steering hanger disposed above the steering column and fixed to the vehicle body via a beam member extending along the vehicle width direction;
a column support bracket fixed to the lower surface of the steering hanger on the front side of the beam member and supporting the front portion of the steering column;
a brake pedal that is rotatably supported in the front-rear direction on a fulcrum on the vehicle body side at a position forward and above the column support bracket;
The column support bracket is
a base wall fixed to the lower surface of the steering hanger;
a front extending wall extending downwardly from a front portion of the base wall;
a rear extending wall extending downward from a rear portion of the base wall;
The front extending wall is integrally provided with a pedal restricting portion that faces an arm portion of the brake pedal extending downward from the pivotal fulcrum from the rear and contacts the arm portion when an impact load is applied from the front. ,
The base wall, the front extension wall, and the rear extension wall are composed of a first metal plate block,
The vehicle interior front structure, wherein the pedal restricting portion is bent toward the front side of the vehicle with respect to an extension wall base extending downward from the base wall of the front extension wall. 2. The vehicle compartment front according to claim 1 , wherein a reinforcing flange that bends forward is continuously provided at an outer end portion of the extending wall base portion and the pedal restricting portion in the vehicle width direction. department structure. 3. The compartment front part according to claim 1 , wherein the column support bracket includes a connecting wall extending in the longitudinal direction and the vertical direction and connecting the front extending wall and the rear extending wall. structure. The front extending wall is formed to have a longer extension length from the base wall than the rear extending wall,
The connecting wall is composed of a second metal plate block separate from the first metal plate block, and has a crank shape in which the front extending wall side is at a lower level and the rear extending wall side is at a higher level. 4. The passenger compartment front structure according to claim 3 , wherein the structure is formed in a side view shape. The second metal plate block is
the connecting wall extending in the front-rear direction and the up-down direction;
a front flange that bends and extends in the vehicle width direction from a front end portion of the connecting wall;
a rear flange that bends and extends in the vehicle width direction from the rear end of the connecting wall,
The front flange is entirely overlapped and welded to the rear surface of the front extension wall,
5. The rear flange according to claim 4 , wherein the upper portion of the rear flange is overlapped with the front surface of the rear extending wall and welded thereto, and the lower end of the rear flange extends below the lower end of the rear extending wall. of the cabin front structure. 6. The passenger compartment front structure according to claim 4 , wherein the connecting wall is provided with a reinforcing bead that at least has a central region in the front-rear direction that slopes upward toward the rear. The reinforcing bead extends substantially along the crank-like side view shape of the connecting wall, and the front end and the rear end are in contact with the rear surface of the front extending wall and the front surface of the rear extending wall, respectively. The passenger compartment front structure according to claim 6 , characterized by:

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