JP2002293262A - Car body structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To share a suspension bracket and a joining member, and to manage both the suppressing of a manufacturing cost and obtaining of stable and high suspension rigidity regardless of a difference between a reference specification and a long size specification. SOLUTION: An outrigger 15 for joining the front or back end of a suspension bracket 5 is joined to a side member 1, a pillar, and a central cross member 11, and the outrigger 15 is disposed in the center of a mounting position of the reference specification and the long size specification of the suspension bracket 5. The outrigger 15 is provided with a mounting surface 151 for reference and a mounting surface 152 for long size longitudinally symmetrically, and a joint 52 for outrigger disposed at the front or back end of the suspension bracket 5 is selectively joined to the mounting surface 151 for reference and the mounting surface 152 for long size depending on the specification.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a vehicle body structure,
In particular, it relates to the structure of the connection portion of the suspension bracket.

[0002]

2. Description of the Related Art Conventionally, in a body structure of a one-box car or the like, there are known ones in which a front-rear length and a wheelbase dimension of a vehicle body are set to a standard specification and a long specification formed longer than the standard specification. Have been. With such a structure, in the case of the long specification, the mounting position of the suspension bracket that supports the rear suspension is set rearward with respect to the mounting position of the standard specification. FIG. 8 is a side view showing an example of such a conventional vehicle body structure, in which a) shows a standard specification. In the figure, 0
Reference numeral 1 denotes a side member, and a pillar 02 is erected at a rear end position of a side opening (not shown) away from the side member 01 in a vehicle exterior direction. The arrow FR indicates the front of the vehicle. In the figure, reference numeral 03 denotes a suspension bracket, which has a mounting hole 05 for connecting an eye provided at the front end of a leaf spring of a rear suspension (not shown). The upper part of the suspension bracket 03 is a side member. 01 and the rear end is connected to the connecting member 04 by welding. Further, the coupling member 04 is coupled to the side member 01 and the pillar 02. On the other hand, in the long specification shown in b) of the figure, the vehicle body dimension behind the pillar 02 is extended, and accordingly, the wheelbase dimension is increased by the dimension 0L, and accordingly, the rear suspension is increased. The position of the mounting hole 05 is located behind the standard specification. In this long specification, the suspension bracket 03 and the coupling member 04 are arranged rearward and coupled to the side member 01 with a change in the wheelbase size.

[0003]

However, the above-mentioned prior art has the following problems to be solved. That is, when the suspension bracket 03 and the coupling member 04 are shared between the standard specification and the long specification, in the standard specification, the coupling portion of the suspension bracket 03 is a vehicle body in which the side member 01 and the pillar 02 are coupled. In the long specification, the connection portion of the suspension bracket 03 is a portion behind the pillar 02 and is connected only to the side member, while the high-rigidity portion can provide high suspension rigidity. Suspension rigidity decreases. As described above, when the suspension bracket 03 and the coupling member 04 are shared between the standard specification and the long specification, the suspension rigidity is different, and it is difficult to obtain high rigidity particularly in the long specification. .

[0004] The present invention has been made in view of such conventional problems, and aims to reduce the manufacturing cost by sharing the suspension bracket and the coupling member, and to reduce the production cost between the standard specification and the long specification. Regardless of the difference in specifications, the aim is to achieve both stable and high suspension rigidity.

[0005]

In order to achieve the above-mentioned object, according to the present invention, side members (1) extend in the front-rear direction on the lower left and right sides of a vehicle body. Mounting holes for supporting the front of the suspension (55)
The suspension bracket (5) provided with
The front and rear length of the body and the wheelbase dimensions are standard specifications,
A long specification longer than the standard specification is set, and in this long specification, the mounting position of the suspension bracket (5) is set rearward with respect to the mounting position of the standard specification. A connecting member (15) for connecting the front and rear ends of the suspension bracket (5) to the side member (1) and a lower end to the side member (1) at the rear of the vehicle body. And a central cross member (2) extending in the vehicle width direction and having both ends coupled to the side member (1) at the base end of the pillar (2). 11)
The connecting member (15) is arranged at the center of the mounting position of the standard specification and the long specification of the suspension bracket (5), and the connecting member (1) is connected.
5) includes a standard mounting surface (151) and a long mounting surface (1).
52) are formed symmetrically in the front-rear direction with respect to the center of the mounting position, and can be mounted on the standard mounting surface (151) and the long mounting surface (152) at the front and rear ends of the suspension bracket (5). The bracket-side coupling portion (52) is provided, and the bracket-side coupling portion (52) is connected to the standard mounting surface (151) and the long mounting surface (15) according to the specification.
2) and the suspension bracket (5) is selectively coupled to the front or rear of the coupling member (15).

According to a second aspect of the present invention, in the vehicle body structure according to the first aspect, the connecting member (15) has a convex shape lower than the side member (1) and has a front side plate (1).
5f), the lower plate (15b), and the rear plate (15r) are formed in a substantially hat-shaped cross section symmetrical in the front-rear direction, and the standard mounting surface (151) is formed by the front plate (15f) and the lower plate (15).
b), while the long mounting surface (152) has a rear plate (15r) and a lower plate (15).
b) and the front side plate (1) in which the bracket-side coupling portion (52) of the suspension bracket (5) is two surfaces of the mounting surfaces (151, 152).
5f) and the lower plate (15b) or the rear plate (15r) and the lower plate (15b).

According to a third aspect of the present invention, in the vehicle body structure according to the first or second aspect, in the standard specification, the front cross member (12) is located at a predetermined distance in front of the central cross member (11). The left and right ends are provided so as to be connected to the side member (1).
A second connecting member (16) is connected across the side member (2) and the side member (1), and the suspension bracket (5) has the bracket-side connecting portion (52) disposed at a rear end thereof. The side connecting portion (52) is connected to the standard mounting surface (151) of the connecting member (15), and the front end is connected to the second connecting member (16).

According to a fourth aspect of the present invention, in the vehicle body structure according to the first or second aspect, in the long specification, the front cross member (12) and the rear side are equidistant with respect to the center cross member (11). A cross member (13) is provided with its left and right ends coupled to the side member (1), respectively. A second coupling member (17) is provided across the rear cross member (13) and the side member (1). The suspension bracket (5) is coupled to the suspension bracket (5) with the bracket-side coupling portion (52) disposed at the front end, and the bracket-side coupling portion (52) is attached to the long mounting surface (1) of the coupling member (15).
52), and the rear end portion is connected to the second connecting member (1).
7), the front cross member (1) is equidistant with respect to the center cross member (11).
2) and a rear cross member (13) are provided with both left and right ends coupled to the side member (1), respectively, and the second coupling member extends across the rear cross member (13) and the side member (1). A member (17) is coupled, and the suspension bracket (5) is connected to the bracket-side coupling portion (52).
At the front end, the bracket-side connecting portion (52) is connected to the long mounting surface (152) of the connecting member (15), and the rear end is the second connecting member (17). Characterized by being coupled to

[0009]

According to the present invention, the connecting member is
The suspension bracket is located at the center of the standard and long mounting positions of the suspension bracket. The connecting member has a standard mounting surface and a long mounting surface that are formed symmetrically in the front-rear direction. In the standard specification, the suspension bracket is arranged on the front side of the coupling member in a direction in which the bracket side coupling portion is the rear end,
The bracket side connection part is brought into contact with the standard mounting surface of the connection member and connected. On the other hand, in the long type, the suspension bracket is placed behind the connection member with the bracket side connection part facing the front end. Then, if the bracket-side connecting portion is brought into contact with the long mounting surface of the connecting member to be connected, the mounting holes are arranged at positions corresponding to the wheelbases of the standard specification and the long specification, respectively. As described above, a common suspension bracket can be used irrespective of the difference between the standard specification and the long specification, and the manufacturing cost and the number of parts can be reduced to reduce the cost. Moreover, since the connecting member is connected across the three frame members of the side member, the center cross member, and the pillar, the input from the suspension is efficiently transmitted to the strong frame portion of the vehicle body, Very high suspension stiffness is obtained. As described above, according to the present invention, it is possible to achieve both low production cost and stable high suspension rigidity regardless of the difference between the standard specification and the long specification.

Further, according to the second aspect of the present invention, the connecting member is formed to have a substantially hat-shaped cross section which is symmetrical in front and rear of a convex shape below the side member, and is provided with a standard mounting surface and a long mounting surface. Is composed of two surfaces, and the bracket-side coupling portion of the suspension bracket is coupled to the two surfaces, so that a higher coupling strength can be obtained as compared with coupling to one surface, thereby further improving the suspension rigidity. Can be.

According to the third and fourth aspects of the present invention, the side of the suspension bracket that is not connected to the connecting member is also connected to the portion where the front or rear cross member and the side member are connected. Therefore, the suspension bracket can be more firmly supported, and the suspension rigidity can be further improved.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment) FIG. 1 is a schematic diagram showing a vehicle to which a vehicle body structure according to an embodiment is applied. In the figure, (a) shows a vehicle BS of a standard specification, and (b) shows a vehicle BL of a long specification. These vehicles BS and BL are so-called one-box cars with a cabin extending to the rear end of the vehicle. A pillar 2 is provided upright at the rear end of a side opening (not shown) provided on the side. The standard specification vehicle BS and the long specification vehicle have different vehicle lengths behind the pillar 2, and the long specification vehicle BL corresponds to the longer vehicle length. As a result, the wheelbase is longer, and therefore, the position of the rear suspension RS is arranged rearward as compared with the standard vehicle BS.

As shown in FIG. 2, the rear suspension RS includes a leaf spring 4 for elastically supporting the rear axle 3, and an eye 9 at the front end of the leaf spring 4.
, A shackle 6 that supports the rear end of the leaf spring 4 so as to swing back and forth, and a shackle 6 that is interposed between the leaf spring 4 and the side member 1. And a pair of shock absorbers 7,7. Further, in these vehicles BS and BL, the rear wheel RW with respect to the floor panel 8 is disposed at a low position in order to achieve a flat floor. Therefore, the suspensions are set so that the positions of the rear axle 3 and the leaf spring 4 are lowered. The vertical length of the bracket 5 is formed to be long, and the mounting position of the leaf spring 4 is separated downward with respect to the side member 1.

Vehicle BS of standard specification and vehicle BL of long length use
As shown in FIG. 1B, the position of the mounting point P2 of the eye 9 on the suspension bracket 5 is located rearward of the mounting point P1 of the eye 9 on the standard vehicle BS. , And a central cross member 11 described later is disposed at an intermediate point between these mounting points P1 and P2. That is, in the figure, L
1 = L2.

Next, a description will be given of a joint structure between the suspension bracket 5 and the vehicle body B, which is a feature of the present embodiment. In this description, first, the configuration of the vehicle body will be described. FIG. 3 is a perspective view of the vehicle BS of the standard specification as viewed obliquely from below, wherein a plurality of cross members extending in the vehicle width direction are bridged between left and right side members 1. In the vicinity of the mounting position of the suspension bracket 5, a central cross member 11 is provided at the same position as the pillar 2 in the vehicle front-rear direction, and a front cross member 12 and a rear cross member 13 are provided at the same intervals in front and rear thereof. ing. A wheel house WH is formed immediately after the pillar 2. Each of the cross members 11, 12, 13 is formed in a hat sectional shape, and flanges 11f, 12f,
13f is welded to the lower surface of the floor panel 14 to form a closed section with the floor panel 14.

The center cross member 11 has a larger cross-sectional area than the front cross member 12 and the rear cross member 13, and the center cross member 11, the side members 1 and the lower end of the pillar 2 are connected to each other. They are connected by an outrigger 15 as a member. In describing this combined state, and when describing the frame member of the vehicle body B, the pillar 2 extends below the side member 1 at a position separated from the side member 1 in the vehicle exterior direction. . The lower surface of the center cross member 11 is disposed above the lower surface of the side member 1. On the other hand, the outrigger 15 is formed in a substantially hat cross-sectional shape including a front side plate 15f, a lower side plate 15b, and a rear side plate 15r, and as shown in FIG.
A portion joined to the center cross member 11, a portion joined to the side member 1, and a portion joined to the pillar 2 are formed in a step-like manner in which the height of the bottom is stepwise different, and A flange 15c abutted and welded to the front and rear surfaces of the center cross member 11, flanges 15d and 15e abutted and welded to the side surface 1a and lower surface 1b of the side member 1 on the vehicle center side, and a vehicle of the side member 1 Flange connected to outer side surface 1c (not shown)
And the floor panel 1 at a position outside the vehicle than the side member 1.
4 and a flange 15 j connected to the lower end of the pillar 2. Further, the outrigger 15 is provided with a coupling portion 150 protruding downward from the lower surface 1b of the side member 1 at a position overlapping the side member 1 in the vertical direction. As shown in FIG. 4, the connecting portion 150 is provided at the front side plate 15
A substantially L-shaped standard mounting surface 151 is formed by the corners of the lower plate 15b and the f, and the substantially L-shaped long mounting surface is formed by the corners of the rear plate 15r and the lower plate 15b. 152 are formed. The standard mounting surface 151 and the long mounting surface 152 are formed completely symmetrically in front and rear.

Further, in the standard vehicle BS according to the present embodiment, a front connecting member 16 as a second connecting member is connected across the front cross member 12 and the side member 1. Like the outrigger 15, the front coupling member 16 also includes a front plate 16f and a lower plate 16b.
The front cross member 12 has a front surface 12a and a rear surface 12r.
r, a flange 16d connected to the side surface 1a of the side member 1 on the center side of the vehicle body, and a flange 16g (not shown) connected to the lower surface 1b of the side member 1 (see FIG. 6). With side member 1
A connecting portion 160 is provided at a position overlapping the vertical direction with the lower surface 1b of the side member 1 to have a downwardly convex shape. The connecting portion 160 is connected to the rear plate 16r of this portion.
The standard mounting surface 1 having a substantially L-shape formed by the corners of the
61 are configured.

Next, the suspension bracket 5 will be described. The suspension bracket 5 includes an outer plate 5a and an inner plate 5b that are separated in the vehicle width direction at intervals corresponding to the width of the side member 1, and a connecting plate 5c that connects the side plates 5a and 5b. Outer plate 5a and inner plate 5
At the lower end of b, mounting holes 55 for supporting the eye 9 at the front end of the leaf spring 4 are provided. The mounting holes 55 are set at positions substantially at the center of the space between the center cross member 11, the front cross member 12, and the rear cross member 13. As shown in the side view of FIG. 4, the outer plate 5 a has a substantially L-shaped corner 5 d at the upper rear end, which coincides with the standard mounting surface 151 of the outrigger 15. A flange (not shown) connected to the lower surface and the front surface of the standard mounting surface 151 is formed at the edge. The outer plate 5a is coupled to the end face of the front coupling member 16 so as to close the space. In addition, a substantially L-shaped corner 5e corresponding to the standard mounting surface 151 of the outrigger 15 is formed at the upper front and rear ends of the inner plate 5b, and the front side coupling is formed along the corner 5e. Flanges 5g and 5h coupled to the lower surface and the rear surface of the standard mounting surface 161 of the member 16, and the standard mounting surface 151 of the outrigger 15;
And flanges 5j and 5k (see FIG. 6) connected to the lower surface and the front surface, respectively. Further, in the outer plate 5a and the inner plate 5b of the suspension bracket 5, the upper end 5m is connected to the side surface 1 of the side member 1 as shown in FIG.
a, 1c are connected by welding. The connecting plate 5c of the suspension bracket 5 is formed by three plate members of a lower member 5n, a front member 5p, and a rear member 5q, as shown by dotted lines in FIG. The flanges 5r and 5s are connected to the outer plate 5a and the inner plate 5b by welding. Further, at the upper end portions of the front member 5p and the rear member 5q, a receiving surface 5t joined to the lower surface of the front coupling member 16 by welding and a receiving surface 5u abutting against the lower surface of the outrigger 15 are provided. At the upper front end of the suspension bracket 5, a connecting member is formed by a corner 5e of the outer plate 5a and the inner plate 5b, flanges 5g and 5h provided along the corner 5e, and a receiving surface 5t of the connecting plate 5c. Corner portions 5d and 5e of the outer plate 5a and the inner plate 5b are formed at the upper rear end of the suspension bracket 5.
And flanges 5j, 5 provided along this corner 5d.
k and the receiving surface 5u of the connecting plate 5c form an outrigger connecting portion 52 as a bracket-side connecting portion. These are different in the cross-sectional size of the outrigger 15 to be connected and the front-side connecting member 16. , The outrigger connecting portion 52 is formed larger than the connecting member connecting portion 51.

Next, referring to FIGS. 6 and 7, the structure of a long-sized vehicle BL will be described. FIG. 6 is a perspective view of the long-sized vehicle BL as viewed obliquely from below, and FIG. 7 is a side view of a main part of the long-sized vehicle BL. As shown in this figure, the side panel 21 extends rearward from the position where the pillar 2 and the outrigger 15 are provided, and the wheel house WH moves rearward from near the position where the rear cross member 13 is provided. Is provided.

Further, in the long-sized vehicle BL, a rear connecting member 17 as a second connecting member is connected across the rear cross member 13 and the side member 1. The rear connecting member 17 is the same member as the front connecting member 16, and includes a front plate 16f and a lower plate 16b.
A flange 16c formed in a substantially hat cross-sectional shape having a rear cross member 13 and joined to the front and rear surfaces of the rear cross member 13, and a flange 16d coupled to the side surface 1a of the side member 1 on the vehicle body center side. , Side member 1
And a flange 16g coupled to the lower surface 1b of the side member 1 and having a downwardly convex shape from the lower surface 1b of the side member 1 at a position vertically overlapping the side member 1.
Is provided. The coupling portion 160 is formed by the front side plate 16f and the lower side plate 16b of this portion to form the standard mounting surface 1
A long mounting surface 162 that is symmetrical with the front and rear surfaces 61 is formed. The rear coupling member 17 and the front coupling member 16 may be formed symmetrically in the front-rear direction, or the front coupling member 16 attached to the right side of the vehicle may be attached to the left side of the vehicle as the rear coupling member 17. The standard mounting surface 161 and the long mounting surface 162 can be formed symmetrically in the front-rear direction by either being used alternately.

Next, the suspension bracket 5 is the same as that used for the standard vehicle BS shown in FIGS. 3 and 4, and its front and rear directions are reversed. Therefore, the outrigger connecting portion 52 is disposed at the upper front end of the suspension bracket 5, the connecting member connecting portion 51 is disposed at the upper rear end, and the flanges 5j, 5k and the receiving surface 5u of the outrigger connecting portion 52 are The outrigger 15 is welded to the lower plate 15b and the rear plate 15r of the long mounting surface 152, and the flanges 5g and 5h and the receiving surface 5t of the connecting portion 51 for the connecting member.
Is the front plate 1 of the long mounting surface 162 of the rear coupling member 17.
6f and the lower plate 16b are connected by welding. In the present embodiment, in the suspension bracket 5, since the outer plate 5a and the inner plate 5b have different shapes, the outer plate 5a is arranged on the vehicle outside in both the standard specification and the long specification. In this case, the left and right sides are switched between the case of using the standard specifications shown in FIGS. 3 and 4 and the case of using the long specifications shown in FIGS. 5 and 6. Therefore, in the present embodiment, in the suspension bracket 5, in the long specification, the arrangement of the connecting plate 5c is the same as the standard specification even if the left, right, front and rear are interchanged. The arrangement of the long plate and the long plate is the same, and the outer plate 5a and the inner plate 5b are 180
° The replacement direction is the same and the suspension bracket 5 is assembled, but the members used are exactly the same as those of the standard specification.

As described above, in the present embodiment, the suspension bracket 5 includes a standard specification and a long specification.
Since exactly the same members are used, there is no need to add a manufacturing die due to a difference in specifications, and the manufacturing cost can be reduced.

Further, in this embodiment, the outrigger connecting portion 52 provided on the front and rear of the upper portion and the connecting member for the connecting member are provided regardless of whether the suspension bracket 5 is of the standard type or the long type. A coupling portion 51 is integrally formed with the side member 1, the pillar 2, and the center cross member 11 and has an outrigger 15 having a box cross-sectional shape, and the side member 1 is integrally formed with the front cross member 12 or the rear cross member 13 to have a front cross-sectional shape having a box cross section. Since the input from the rear suspension RS to the suspension bracket 5 is efficiently transmitted to the solid vehicle body structural portion, the input is connected to the member 16 or the rear connecting member 17, so that either the standard specification or the long specification is used. High suspension rigidity can be obtained even in the specifications. In addition, since the suspension bracket 5 has exactly the same configuration for the standard specification and the long specification, the manufacturing die can be shared, the die cost can be reduced, and the cost can be reduced. .

In the embodiment, the suspension bracket 5 is connected to the coupling portion 150 of the outrigger 15 and the coupling portion of the front coupling member 16 or the rear coupling member 17 which project further downward from the lower surface 1b of the side member 1. 160, the suspension bracket 5 can be supported at a position lower than the lower surface 1b of the side member 1. Therefore, the position at which the leaf spring 4 is supported in the suspension bracket 5 can be reduced. Thus, it is possible to achieve both flattening of the floor panel 14 without interference between the floor panel 14 and the rear suspension RS and the rear wheel RW, and securing of suspension rigidity.

Furthermore, in the suspension bracket 5, both the outrigger connecting portion 52 and the connecting member connecting portion 51 are formed in an inverted L-shape and an L-shape, and the connecting portion 150 of the outrigger 15 and the front and rear sides are formed. Since each of the coupling members 16 and 17 is coupled on two sides, the suspension bracket 5 is not easily displaced with respect to the vehicle body, and high rigidity can be obtained.

Although the embodiment has been described with reference to the drawings, the present invention is not limited to this. That is, in the embodiment, the front and rear ends of the suspension bracket 5 are connected to the outrigger 15, and the other of the front and rear is connected to the front cross member 12 or the rear cross member 13 and the side member 1. Although the example of coupling to the coupling member 16 or the rear coupling member 17 is shown, at least one of the front and rear ends only needs to be coupled to the coupling portion 150 of the outrigger 15 as the coupling member in the claims. The other end may be connected to a portion of the side member 1 where the front cross member 12 and the rear cross member 13 are not provided.
In this connection, it may be directly connected to the side member 1. Further, in the embodiment, the leaf suspension type is shown as the rear suspension RS, but the rear suspension type is as follows.
It is not limited to the illustrated one.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a vehicle to which a vehicle body structure according to an embodiment is applied.

FIG. 2 is a side view showing a rear suspension according to the embodiment.

FIG. 3 is a perspective view showing a vehicle body structure according to the embodiment.

FIG. 4 is a side view showing a main part of the embodiment.

FIG. 5 is a cross section showing a main part of the embodiment.

FIG. 6 is a perspective view showing a main part of the embodiment.

FIG. 7 is a side view showing a main part of the embodiment.

FIG. 8 is a schematic view showing a conventional technique.

[Explanation of symbols]

 Reference Signs List 1 side member 1a side surface 1b lower surface 1c side surface 2 pillar 3 rear axle 4 leaf spring 5 suspension bracket 5a outer plate 5b inner plate 5c connecting plate 5d corner 5e corner 5g, 5h flange 5j, 5k flange 5m upper end 5n lower member Front member 5q Rear member 5r, 5s Flange 5t Receiving surface 5u Receiving surface 51 Joint for connecting member 52 Joint for outrigger 55 Mounting hole 6 Shackle 7,7 Shock absorber 8 Floor panel 9 Eye 11 Central cross member 11f Flange 12 Front Cross member 12a Front surface 12r Rear surface 13 Rear cross member 14 Floor panel 15 Outrigger 15b Lower plate 15c Flange 15d, 15e Flange 15f Front plate 15h Flange 15j Flange 15r Rear plate 150 Connecting part 151 Standard mounting surface 152 Long mounting surface 16 Front side connecting member 16b Lower plate 16c Flange 16d Flange 16f Front side plate 16g Flange 16r Rear plate 160 Connecting part 161 Standard mounting surface 162 Long mounting surface 17 Rear connection Member 21 Side panel B Body BL Long vehicle BS Standard vehicle RS Rear suspension RW Rear wheel WH Wheelhouse

Claims (4)

[Claims] 1. A suspension having side members (1) extending in the front-rear direction on the lower left and right sides of a vehicle body, wherein the side members (1) are provided with mounting holes (55) for supporting a front part of a suspension at a rear part of the vehicle. The bracket (5) is connected, the front and rear length of the vehicle body and the wheelbase dimensions are standard specifications,
A long specification longer than the standard specification is set, and in this long specification, the mounting position of the suspension bracket (5) is set rearward with respect to the mounting position of the standard specification. A connecting member (15) for connecting the front and rear ends of the suspension bracket (5) to the side member (1) and a lower end to the side member (1) at the rear of the vehicle body. Pillars (2)
And a central cross member (11) extending in the vehicle width direction and having both ends coupled to the side member (1) at the base end of the pillar (2). 15) is disposed at the center of the mounting position of the standard specification and the long specification of the suspension bracket (5), and the connecting member (15) has the standard mounting surface (151) and the long mounting surface. (152) are formed symmetrically in the front-rear direction with respect to the center of the mounting position. The standard mounting surface (151) and the long mounting surface (15) are provided at one end of the front and rear of the suspension bracket (5).
2) A bracket-side coupling portion (52) that can be attached is provided, and the bracket-side coupling portion (52) is selected as a standard mounting surface (151) or a long mounting surface (152) according to specifications. A vehicle body structure characterized in that the suspension bracket (5) is connected in front of or behind the connecting member (15) by being connected together. 2. The connecting member (15) has a lower convex shape than the side member (1) and has a front side plate (15f).
And the lower plate (15b) and the rear plate (15r) are formed in a substantially hat-shaped cross section symmetrical in the front-rear direction, and the standard mounting surface (151) is substantially formed by the front plate (15f) and the lower plate (15b). While being formed in an L-shape,
The long mounting surface (152) is formed in a substantially inverted L-shape by a rear plate (15r) and a lower plate (15b), and the bracket-side coupling portion (52) of the suspension bracket (5) The front plate (15f) and the lower plate (15b) or the rear plate (15r) and the lower plate (15b), which are two surfaces of the mounting surfaces (151, 152), are formed in a substantially L-shape. 2. The method according to claim 1, wherein
The vehicle body structure described in the above. 3. In the standard specification, a front cross member (12) is provided at a predetermined distance in front of a center cross member (11) with left and right ends joined to side members (1). The second coupling member (16) is coupled across the (12) and the side member (1), and the suspension bracket (5) has the bracket-side coupling portion (52) disposed at the rear end thereof. The bracket-side coupling portion (52) is coupled to the standard mounting surface (151) of the coupling member (15), and the front end is coupled to the second coupling member (16). The vehicle body structure according to claim 1 or 2. 4. In the long specification, a front cross member (12) and a rear cross member (13) are connected to the side members (1) at both left and right ends at equal distances with respect to the center cross member (11). A second connecting member (17) is connected across the rear cross member (13) and the side member (1), and the suspension bracket (5) is connected to the bracket-side connecting portion (52). At the front end, the bracket-side connecting portion (52) is connected to the long mounting surface (152) of the connecting member (15), and the rear end is the second connecting member (17). The vehicle body structure according to claim 1, wherein the vehicle body structure is coupled to a vehicle body.