JP5951474B2 - Rigid support structure - Google Patents

Description

  The present invention relates to a rigid support portion structure.

  Vehicles such as automobiles are provided with a vehicle compartment front wall that partitions an engine room and a vehicle compartment in a front portion (vehicle front portion). And the instrument panel is provided in the front part (vehicle compartment front part) of a compartment so that a compartment front wall may be covered. A vehicle body strength member extending in the vehicle width direction is provided inside the instrument panel. A column bracket is integrally provided at a lower portion of the vehicle body strength member, and a steering column is attached to the column bracket.

  The above-described vehicle compartment front wall, the vehicle body strength member installed in the vehicle compartment front portion, and the column bracket provided for attaching the steering column to the lower portion of the vehicle body strength member are connected to each other. A rigid support is provided (see, for example, Patent Document 1).

  The rigid support body includes an upper portion erected between the vehicle compartment front wall and the vehicle body strength member, and a lower portion erected between the vehicle compartment front wall and the column bracket. The main body has a vertical support body that is integrated with a bent portion.

  The rigid support mainly functions so that a lower portion installed between the vehicle compartment front wall and the column bracket receives vibration in the rotational direction of the vehicle body strength member by the steering column.

  In addition, the upper portion constructed between the vehicle compartment front wall and the vehicle body strength member mainly functions to receive vertical vibrations of the vehicle body strength member by the steering column.

JP 2008-137777 A

  However, the rigid support structure has the following problems.

  In other words, the rigid support described above is subjected to vibration caused by the steering column by the triangular truss structure composed of the upper part, the lower part, and the column bracket, but there are problems such as the space and layout inside the instrument panel. When the truss structure with an ideal shape cannot be obtained by this, there is a problem that it is difficult to receive vibrations from the steering column.

  In addition, the above-described rigid support body needs to be deformed by an emergency input load from the front of the vehicle in order to protect the occupant. For example, an ideally shaped truss structure cannot be obtained. In such a case, the direction in which the strength is exerted is biased, and it has been difficult to satisfactorily ensure the deformability with respect to the emergency input load from the front of the vehicle.

  That is, there is a problem that it is difficult to achieve both the function of receiving vibration from the steering column and the function of being deformed by an emergency input load.

In order to solve the above problem, the invention described in claim 1 is:
A rigid support is provided to connect between the front wall of the passenger compartment, the vehicle body strength member installed at the front of the vehicle compartment, and a column bracket provided to attach a steering column to the lower portion of the vehicle body strength member,
The rigid support is
An upper portion constructed between the vehicle compartment front wall and the vehicle body strength member, and a lower portion constructed between the vehicle compartment front wall and the column bracket are arranged on the vehicle compartment front wall end. A vertically-supporting support body formed integrally with a bent portion,
An upper reinforcing flange provided sideways along the upper edge of the upper part;
A rigid support portion structure having a lower reinforcement flange portion provided laterally to a side facing the upper reinforcement flange portion along the lower edge portion of the lower portion,
At least a middle part of the upper reinforcing flange part in the vehicle front-rear direction is provided with a deformation starting point part that causes the rigid support to bend and deform by an emergency input load from the front of the vehicle,
A bracket body facing the rigid support body with a gap in the vehicle width direction with respect to the support body, and an upper flange portion and a lower flange portion that overlap with the upper reinforcing flange portion and the lower reinforcing flange portion, respectively. And a reinforcing bracket having
The upper flange portion is connected to the upper reinforcing flange portion at a position on the vehicle front side from the deformation starting point portion,
The lower flange portion is connected to the entire area of the lower reinforcing flange portion.
The invention described in claim 2 is the above,
An opening is provided at a position below the deformation starting point in the bracket body.
The invention described in claim 3 is the above,
The opening is provided above the strength securing portion in the lower portion of the bracket body.
The invention described in claim 4 is the above,
Wherein the upper flange portion and the lower flange portion of the reinforcing bracket, respectively, you characterized in that the installed to overlap the upper side of the upper reinforcing flange and said lower reinforcing flange of the rigid support.

According to the first aspect of the present invention, the following operational effects can be obtained by the above configuration.
In other words, the lower portion installed between the vehicle compartment front wall and the column bracket mainly functions to receive vibration in the rotational direction of the vehicle body strength member by the steering column.
In addition, the upper portion constructed between the vehicle compartment front wall and the vehicle body strength member mainly functions to receive vertical vibrations of the vehicle body strength member by the steering column.
Further, by providing the deformation starting point portion at the middle portion of the upper reinforcing flange portion in the vehicle front-rear direction, it can be used as a trigger for bending and deforming the rigid support by an emergency input load from the front of the vehicle.
By attaching the reinforcement bracket to the rigid support, the support body and the bracket body face each other, and the upper reinforcement flange and upper flange, and the lower reinforcement flange and lower flange overlap. A closed cross-sectional structure having a high height can be formed. Thereby, the big reinforcement effect with respect to a rigid support body is securable. Thus, vibrations from the steering column can be effectively received.
The upper flange portion is connected to the upper reinforcing flange portion at a position on the vehicle front side of the deformation starting point portion, and the lower flange portion is connected to the entire area of the lower reinforcing flange portion, thereby Since the deformation starting point portion can be prevented from being covered by the upper flange portion, the reinforcing bracket can be reliably deformed by the emergency input load from the front of the vehicle.
As a result, for example, even if the truss structure consisting of the upper part, the lower part, and the column bracket cannot be formed into an ideal shape due to problems such as space and layout inside the instrument panel, It is possible to achieve both the function of receiving vibration and the function of being deformed by an emergency input load.
According to the second aspect of the present invention, the following effects can be obtained by the above configuration.
That is, the opening basically functions as a punch hole for reducing the weight of the reinforcing bracket while ensuring the strength of the reinforcing bracket in the vehicle front-rear direction.
By providing the opening at a position below the deformation starting point, the reinforcing bracket can be optimally deformed together with the rigid support against an emergency input load from the front of the vehicle.
According to the third aspect of the present invention, the following operational effects can be obtained by the above configuration.
That is, by removing the strength securing part at the lower part of the bracket body and providing an opening, it is possible to prevent the reinforcing bracket from becoming weaker than necessary, and to reinforce the rigid support body normally, and to make an emergency input load In contrast, the reinforcing bracket can be reliably deformed.
According to the invention described in claim 4 , the following effects can be obtained by the above-described configuration.
That is, both the upper flange portion and the lower flange portion of the reinforcing bracket enter the inside of the upper reinforcing flange portion and the lower reinforcing flange portion of the rigid support, and both the upper flange portion and the lower flange portion of the reinforcing bracket are rigid. Since it does not go outside the upper reinforcing flange portion and the lower reinforcing flange portion of the support body, the assembling property of the reinforcing bracket to the rigid support body can be improved.
Further, at the time of deformation due to an emergency input load, the upper flange portion and the lower flange portion do not hinder the deformation of the portion on the vehicle rear side and the lower reinforcement flange portion that extends from the deformation starting point portion of the upper reinforcement flange portion to spread outward. Can be. Thus, ing so that it can be deformed as set the rigid support and reinforcement bracket.

It is a perspective view of the vehicle body strength member provided with the rigid support part structure concerning the Example of this invention. It is a side view of the rigid support body of FIG. It is the perspective view which looked at FIG. 2 from the front diagonal upper side. It is the perspective view which looked at FIG. 2 from the front diagonally lower side. It is the side view similar to FIG. 2 which attached the reinforcement bracket. It is a perspective view similar to FIG. 3 which attached the reinforcement bracket. It is a perspective view similar to FIG. 4 which attached the reinforcement bracket. (A) is sectional drawing of a front part rather than a deformation | transformation starting part of a rigid support body and a reinforcement bracket, (b) is sectional drawing of a rear part from a deformation | transformation starting part.

Hereinafter, the present embodiment and examples embodying the present embodiment will be described in detail with reference to the drawings.
1 to 8 show this embodiment and its modifications.

<Configuration> The configuration will be described below.
The directions are a vehicle longitudinal direction x, a vehicle width direction y, and a vertical direction z.

  As shown in FIGS. 1 and 2, a vehicle such as an automobile is provided with a vehicle compartment front wall 3 that partitions an engine room 1 and a vehicle compartment 2 in a front part (vehicle front part). An instrument panel (not shown) is provided at the front of the vehicle compartment 2 (vehicle compartment front) so as to cover the vehicle compartment front wall 3. A vehicle body strength member 5 extending in the vehicle width direction y is provided inside the instrument panel. A column bracket 6 is integrally provided at a lower portion of the vehicle body strength member 5, and a steering column 7 is attached to the column bracket 6.

  Between the vehicle compartment front wall 3, the vehicle body strength member 5 installed in the vehicle compartment front portion, and the column bracket 6 provided for attaching the steering column 7 to the lower part of the vehicle body strength member 5. A rigid support 9 is provided for connecting them together.

As shown in FIGS. 2 to 4, the rigid support body 9 includes an upper portion 11 that is installed between the vehicle compartment front wall 3 and the vehicle body strength member 5, and the vehicle compartment front wall 3 and the column. A vertically-supporting support body that is integrally formed with a bent portion 13 between lower end portions (between the end portions on the side of the passenger compartment front wall 3) of the lower portion 12 laid between the bracket 6 14.

  The rigid support body 9 extends to the side facing the upper reinforcement flange portion 15 along the lower edge portion of the upper reinforcement flange portion 15 provided laterally along the upper edge portion of the upper portion 11 and the lower portion 12. A lower reinforcing flange portion 16 provided sideways.

  Here, the above supplementary explanation will be given.

  The above-mentioned “automobile” mainly targets passenger cars that can travel on public roads. However, vehicles other than passenger cars can be included widely.

  The above-mentioned “engine room 1” is literally a space for installing equipment such as an engine and its auxiliary machines.

  The above-described “chamber 2” is a space for passengers to get on.

  The above-mentioned “vehicle compartment front wall 3” is, for example, a partition wall called a dash panel.

  The above “front part of the passenger compartment” is a part around the passenger compartment front wall 3 on the vehicle rear side with respect to the passenger compartment front wall 3.

  The above “instrument panel” is a resin interior panel.

  As shown in FIG. 1, the above-described “vehicle strength member 5” extends in the vehicle width direction y and is connected to the left and right vehicle body panels. Side brackets 5a for connecting to the left and right vehicle body panels are provided at both ends of the vehicle body strength member 5. A stay 5b for supporting the vehicle body strength member 5 on the floor panel (vehicle compartment floor) is provided at an intermediate portion in the vehicle width direction y. The vehicle body strength member 5 is called, for example, a steering support member or a cross car beam.

  The above-described “steering column 7” is an axial member that extends in the vehicle longitudinal direction x and inclines with a downward slope toward the front of the vehicle.

  The above-described “column bracket 6” is fixed to the lower portion of the position on the driver's seat side of the vehicle body strength member 5 by welding or the like (see the welded portion 17 and FIG. 2). The column bracket 6 extends from the lower portion of the vehicle body strength member 5 with a downward gradient toward the front of the vehicle in correspondence with the inclination of the steering column 7. In this case, as shown in FIG. 3, the column bracket 6 has a bottom surface portion 6a and both side surface portions 6b, and has a U-shape or the like opened upward.

  As shown in FIG. 2, the above-mentioned “rigid support 9” is called a post bracket or the like. The rigid support 9 is formed by, for example, press-molding a single metal plate. The rigid support body 9 is substantially C-shaped when viewed from the vehicle front-rear direction x by the support portion main body 14, the upper reinforcing flange portion 15, and the lower reinforcing flange portion 16. The rigid support 9 is fixed to the position above the column bracket 6 in the vehicle body strength member 5 by welding or the like (welded portion 18).

  The rigid support 9 is fixed to the column bracket 6 by welding or the like (welded portion 19).

  The above-mentioned “upper portion 11” extends from the front portion of the vehicle body strength member 5 substantially toward the front of the vehicle. The upper portion 11 is inclined slightly above the horizontal in order to receive vibration from the steering column 7 at normal times and to bend easily by an emergency input load F (described later) from the front of the vehicle. However, in this case, it extends substantially in the horizontal direction depending on the space and layout inside the instrument panel. As described above, if the upper portion 11 extends substantially in the horizontal direction, only the strength in the vehicle longitudinal direction x becomes too strong, which is disadvantageous in ensuring flexibility for the emergency input load F from the front of the vehicle. It is.

  The above-described “lower portion 12” extends downward from the tip portion of the upper portion 11 toward the tip portion of the column bracket 6. The lower tilting portion 12 is ideal for receiving vibrations in the rotational direction by the steering column 7 in this case, but in this case, the lower portion 12 depends on the space inside the instrument panel, layout, etc. The part 12 is also nearly horizontal. Thus, if the lower part 12 is set to be nearly horizontal, it is disadvantageous for receiving vibration in the rotational direction by the steering column 7. Further, since only the strength in the vehicle longitudinal direction x becomes too strong, it is disadvantageous for ensuring the flexibility with respect to the emergency input load F from the front of the vehicle.

  The above-described “bending portion 13” is a connecting portion between the tip portion of the upper portion 11 and the tip portion of the lower portion 12. In order to strengthen the truss structure, it is desirable that the opening angle between the upper portion 11 and the lower portion 12 with the bent portion 13 as a center is large to some extent. In this case, however, the space and layout inside the instrument panel, etc. As a result, the opening angle between the upper portion 11 and the lower portion 12 is extremely narrow.

  The above-mentioned “vertical direction” is a surface extending substantially in the vertical direction z. In this case, the surface extends in the vertical direction z and the vehicle longitudinal direction x.

  In this case, as described above, the “support body 14” described above has a substantially hairpin-like bent shape when viewed from the vehicle width direction y.

  The above-described “upper edge” is literally the upper edge of the support body 14.

  The above-mentioned “lateral direction” is a surface extending substantially in the horizontal direction. In this case, the vehicle extends in the vehicle width direction y and the vehicle longitudinal direction x.

  The above-described “upper reinforcing flange portion 15” extends along the upper edge portion of the support portion main body 14. The upper reinforcing flange portion 15 basically has a uniform width, but has a partial wide portion on the rear end side.

  The above-mentioned “lower edge” is literally the lower edge of the support body 14.

  The above-described “lower reinforcing flange portion 16” extends along the lower edge of the support portion main body 14. The lower reinforcing flange portion 16 basically has a uniform width, but has a partial wide portion on the rear end side.

  In addition to the basic configuration as described above, the present embodiment has the following configuration.

(Configuration 1)
At least an intermediate portion in the vehicle longitudinal direction x of the upper reinforcing flange portion 15 is provided with a deformation starting point portion 21 that serves as a trigger for bending and deforming the rigid support body 9 by an emergency input load F from the front of the vehicle.
As shown in FIGS. 5 to 7, the bracket body 22 facing the rigid support body 9 with a gap in the vehicle width direction y with respect to the support body 14, the upper reinforcing flange portion 15, and A reinforcing bracket 25 having an upper flange portion 23 and a lower flange portion 24 that overlap with the lower reinforcing flange portion 16 is attached.
Further, the upper flange portion 23 is connected to the upper reinforcing flange portion 15 at a position on the vehicle front side with respect to the deformation starting point portion 21.
Further, the lower flange portion 24 is connected to the entire area of the lower reinforcing flange portion 16.

(Supplementary explanation 1)
Here, the above-described “intermediate portion” means an intermediate portion between the front end portion and the rear end portion of the upper reinforcing flange portion 15. The center portion of the upper reinforcing flange portion 15 in the vehicle front-rear direction x is desirable, but is not limited to the center portion.

  The above-described “emergency input load F” is literally a load input to the vehicle in an emergency. In this case, the vehicle is almost from the front.

  The above-described “deformation starting point portion 21” is literally a portion serving as a starting point of deformation of the rigid support 9. In this case, the deformation starting point portion 21 is a fragile portion such as a V notch formed in the upper reinforcing flange portion 15 in a notch shape. In addition, the deformation | transformation start part 21 can also be provided in one place or two or more places. In this case, when a plurality of deformation starting point portions 21 are provided, the main deformation starting point portion 21 is used as a reference.

  If necessary, the deformation starting point portion 26 similar to the above may be provided on the lower reinforcing flange portion 16 at one place or two places or more.

  The “interval” described above is an interval necessary for forming an effective closed cross section.

  The “bracket body 22” described above has a vertically oriented surface. The vertical orientation is the same as described above.

  The “upper flange portion 23” described above extends along the upper edge portion of the bracket body 22. The upper flange portion 23 basically has a uniform width.

  The “lower flange portion 24” described above extends along the lower edge of the bracket body 22. The lower flange portion 24 basically has a uniform width.

  The “reinforcing bracket 25” described above is formed, for example, by press-molding a single metal plate. The reinforcing bracket 25 has a substantially inverted C shape that is opposite to the rigid support 9 when viewed from the vehicle longitudinal direction x.

  The above-mentioned “connection at the position on the front side of the vehicle” means that the connection portion between the upper flange portion 23 and the upper reinforcing flange portion 15 exists in front of the vehicle with respect to the deformation starting point portion 21. Accordingly, the upper flange portion 23 is only present on the front side of the deformation starting point portion 21. In this case, a connecting portion between the upper flange portion 23 and the upper reinforcing flange portion 15 is a welded portion 27 (see FIG. 6).

  The above-mentioned “connection to the entire region” means that the connection portion between the lower flange portion 24 and the lower reinforcing flange portion 16 exists in the entire region regardless of the deformation starting point portion 21. The connecting portions may be continuously present over the entire region or may be scattered discontinuously. Accordingly, the lower flange portion 24 extends across the entire area of the lower reinforcing flange portion 16. In this case, a connecting portion between the lower flange portion 24 and the lower reinforcing flange portion 16 is a welded portion 28 (see FIG. 7).

  As shown in FIG. 5, the bracket body 22 has a shape approximating a trapezoidal shape in a side view, having at least surfaces connecting the front end portions and the rear end portions of the upper flange portion 23 and the lower flange portion 24. It is supposed to be. The bracket main body 22 has a portion that enters the inside of the column bracket 6 at a rear portion thereof. A portion that enters the inside of the column bracket 6 is connected to the column bracket 6. In this case, a connecting portion between the above-described portion of the bracket body 22 and the column bracket 6 is a welded portion 29 (see FIG. 7).

(Configuration 2)
As shown in FIG. 5, an opening 31 is provided in the bracket body 22 at a position below the deformation starting point 21.

(Supplementary explanation 2)
Here, the above-mentioned “lower side” means directly below the deformation starting point portion 21.

  The above-described “opening 31” is formed as one of the punched holes 32 for reducing the weight of the reinforcing bracket 25.

(Configuration 3)
As shown in FIG. 8, the upper flange portion 23 and the lower flange portion 24 of the reinforcing bracket 25 overlap the upper sides of the upper reinforcing flange portion 15 and the lower reinforcing flange portion 16 of the rigid support body 9, respectively. Installed.

(Supplementary explanation 3)
Here, the term “overlapping on the upper side” literally means that the upper flange portion 23 is in contact with the upper surface side of the upper reinforcing flange portion 15 and the lower flange portion 24 is in contact with the upper surface side of the lower reinforcing flange portion 16. Is to be tangentially arranged.

(Configuration 4)
As shown in FIG. 5, the opening 31 is provided above the strength securing portion 35 in the lower portion of the bracket body 22.

(Supplementary explanation 4)
Here, the above-described “strength securing portion 35” is a portion particularly necessary for securing the strength of the reinforcing bracket 25 at the lower portion of the reinforcing bracket 25.

The strength securing portion 35 includes a front attachment point 36 for the vehicle compartment front wall 3 provided in the bent portion 13 and a rear side for the column bracket 6 provided on the rear end side of the lower reinforcing flange portion 16. It is a part below the line 37 connecting between attachment points (not shown).
The above-mentioned “front attachment point 36” is provided in the attachment portion 38 for the vehicle compartment front wall 3 formed by bending with respect to the distal end portion of the bent portion 13.

  The “rear attachment point” described above is a welded portion or the like provided at an overlapping portion of the rear end portion of the lower reinforcing flange portion 16 with respect to the column bracket 6.

  The above-mentioned “above the strength securing portion 35” means that the opening 31 does not overlap the strength securing portion 35. The other punched holes 32 are also provided above the strength securing portion 35.

<Operation> The operation of this embodiment will be described below.
The rigid support 9 functions so that a lower portion 12 installed between the vehicle compartment front wall 3 and the column bracket 6 mainly receives vibration in the rotational direction of the vehicle body strength member 5 by the steering column 7. .

  Further, the upper portion 11 constructed between the vehicle compartment front wall 3 and the vehicle body strength member 5 mainly functions to receive vibration in the vertical direction z of the vehicle body strength member 5 due to the steering column 7.

<Effect> According to this embodiment, the following effects can be obtained.
(Operation effect 1)
By providing the deformation starting point portion 21 at the middle portion of the upper reinforcing flange portion 15 in the vehicle longitudinal direction x, the rigid support body 9 can be triggered to be bent and deformed by the emergency input load F from the front of the vehicle. it can.

  By attaching the reinforcing bracket 25 to the rigid support 9, the support body 14 and the bracket body 22 face each other, the upper reinforcing flange 15 and the upper flange 23, and the lower reinforcing flange 16 and the lower flange. A high-strength closed cross-sectional structure in which the portion 24 overlaps can be formed. Thereby, the big reinforcement effect with respect to the rigid support body 9 is securable. Thus, vibrations from the steering column 7 can be effectively received.

  By connecting the upper flange portion 23 to the upper reinforcing flange portion 15 at a position on the vehicle front side of the deformation starting point portion 21 and connecting the lower flange portion 24 to the entire area of the lower reinforcing flange portion 16, Since the deformation starting point portion 21 of the upper reinforcing flange portion 15 can be prevented from being covered by the upper flange portion 23, the reinforcing bracket 25 can be reliably deformed by the emergency input load F from the front of the vehicle.

  With these, for example, even if the truss structure composed of the upper part 11, the lower part 12, and the column bracket 6 cannot be formed into an ideal shape due to problems such as space and layout inside the instrument panel, The function of receiving vibrations from the steering column 7 and the function of being deformed by the emergency input load F can be made compatible.

(Operation effect 2)
By providing the opening 31 at a position below the deformation starting point 21 in the bracket body 22, the following operational effects can be obtained.
In other words, the opening 31 basically functions as a hole 32 for reducing the weight of the reinforcing bracket 25 while ensuring the strength of the reinforcing bracket 25 in the vehicle longitudinal direction x.

  By providing the opening 31 at a position below the deformation starting point 21, the reinforcing bracket 25 can be optimally deformed together with the rigid support body 9 with respect to the emergency input load F from the front of the vehicle. Can do.

(Operation effect 3)
The upper flange portion 23 and the lower flange portion 24 of the reinforcing bracket 25 are installed so as to overlap the upper side of the upper reinforcing flange portion 15 and the lower reinforcing flange portion 16 of the rigid support body 9, respectively. The following effects can be obtained.
That is, the upper flange portion 23 and the lower flange portion 24 of the reinforcing bracket 25 both enter the inside of the upper reinforcing flange portion 15 and the lower reinforcing flange portion 16 of the rigid support body 9, or the upper flange portion 23 of the reinforcing bracket 25 and Since the lower flange portion 24 does not come out of the upper reinforcing flange portion 15 and the lower reinforcing flange portion 16 of the rigid support body 9 together, the assemblability of the reinforcing bracket 25 to the rigid support body 9 is improved. be able to.

  Further, at the time of deformation due to the emergency input load F, the upper flange portion 23 and the lower flange portion 24 expand outward from the portion of the upper reinforcing flange portion 15 on the vehicle rear side relative to the deformation starting point portion 21 and the lower reinforcing flange portion 16. It is possible to prevent the deformation to be prevented. As a result, the rigid support 9 and the reinforcing bracket 25 can be deformed as set.

(Operation effect 4)
By removing the strength securing portion 35 at the lower part of the bracket body 22 and providing the opening 31, the reinforcing bracket 25 is prevented from becoming weaker than necessary, and the rigid support 9 is firmly reinforced at normal times. The reinforcing bracket 25 can be reliably deformed with respect to the emergency input load F.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are only examples of the present invention, and the present invention is not limited to the configurations of the embodiments. Needless to say, design changes and the like within a range not departing from the gist of the invention are included in the present invention. Further, for example, when each embodiment includes a plurality of configurations, it is a matter of course that possible combinations of these configurations are included even if not specifically described. Further, when a plurality of embodiments and modifications are shown, it is needless to say that possible combinations of configurations extending over these are included even if not specifically described. Further, the configuration depicted in the drawings is of course included even if not particularly described. Further, when there is a term of “etc.”, it is used in the sense that the equivalent is included. In addition, when there are terms such as “almost”, “about”, “degree”, etc., they are used in the sense that they include those in the range and accuracy recognized by common sense.

2 Car interior 3 Car front wall 5 Car body strength member 6 Column bracket 7 Steering column 9 Rigid support 11 Upper part 12 Lower part 13 Bent part 14 Support part body 15 Upper reinforcing flange part 16 Lower reinforcing flange part 21 Deformation starting point part 22 Bracket body 23 Upper flange portion 24 Lower flange portion 25 Reinforcing bracket 31 Opening portion 35 Strength securing portion F Emergency input load x Vehicle longitudinal direction y Vehicle width direction

Claims (4)

A rigid support is provided to connect between the front wall of the passenger compartment, the vehicle body strength member installed at the front of the vehicle compartment, and a column bracket provided to attach a steering column to the lower portion of the vehicle body strength member,
The rigid support is
An upper portion constructed between the vehicle compartment front wall and the vehicle body strength member, and a lower portion constructed between the vehicle compartment front wall and the column bracket are arranged at an end on the vehicle compartment front wall side. A vertically-supporting support body formed integrally with a bent portion between the portions;
An upper reinforcing flange provided sideways along the upper edge of the upper part;
A lower reinforcing flange portion provided sideways along a lower edge portion of the lower portion and facing the upper reinforcing flange portion,
In the rigid support structure having
At least a middle part of the upper reinforcing flange part in the vehicle front-rear direction is provided with a deformation starting point part that causes the rigid support to bend and deform by an emergency input load from the front of the vehicle,
A bracket body facing the rigid support body with a gap in the vehicle width direction with respect to the support body, and an upper flange portion and a lower flange portion that overlap with the upper reinforcing flange portion and the lower reinforcing flange portion, respectively. And a reinforcing bracket having
The upper flange portion is connected to the upper reinforcing flange portion at a position on the vehicle front side from the deformation starting point portion,
A rigid support portion structure characterized in that the lower flange portion is connected to the entire area of the lower reinforcing flange portion.   The rigid support part structure according to claim 1, wherein an opening is provided at a position below the deformation starting point in the bracket body. The rigid support part structure according to claim 2 , wherein the opening is provided above the strength securing part in the lower part of the bracket body. 2. The upper flange portion and the lower flange portion of the reinforcing bracket are installed so as to overlap the upper side of the upper reinforcing flange portion and the lower reinforcing flange portion of the rigid support, respectively. The rigid support part structure according to any one of claims 3 to 4 .