JP2022136566A - Vehicle body structure - Google Patents

Abstract

To provide a vehicle body structure capable of simplifying assembly, reducing vehicle body weight, and enhancing strength and rigidity of a vehicle body.SOLUTION: A vehicle body structure has an expansive opening portion 44 and an inclined flange 45 on a wheel house inner panel 41, and has an inclined side wall 52 on a wheel house outer panel 42. The expansive opening portion is inclined so that an opening becomes larger toward an inner opening portion 43. The inclined flange is inclined so that an opening becomes smaller from the expansive opening portion to the inner opening portion. The inclined side wall is inclined up to an outer opening portion 51 along the inclined flange. The inclined flange and the inclined side wall are joined in a fitted state.SELECTED DRAWING: Figure 3

Description

The present invention relates to vehicle body structures.

BACKGROUND ART As a rear wheelhouse of a vehicle body structure, a configuration is known in which flanges of a wheelhouse inner panel and a wheelhouse outer panel are joined, and the wheelhouse inner panel and the wheelhouse outer panel are joined by an extension panel. Here, each flange of the wheelhouse inner panel and the wheelhouse outer panel is joined by a so-called "wiggle joint".

According to this vehicle body structure, for example, it is conceivable that a load in the vehicle width direction is input to the rear wheel house due to twisting of the vehicle body while the vehicle is running. In this case, the extension panel can prevent the flanges of the wheel house inner panel and the wheel house outer panel from peeling off (see, for example, Patent Document 1).

Japanese Patent No. 4368300

Here, in the vehicle body structure of Patent Document 1, only a part of the wheel house inner panel and the wheel house outer panel are joined by the extension panel. For this reason, in order to ensure the strength and rigidity of the vehicle body, it is necessary to suppress peeling along the entire periphery of each flange of the wheelhouse inner panel and the wheelhouse outer panel.
However, in order to suppress the peeling along the entire periphery of each flange of the wheel house inner panel and the wheel house outer panel, it is necessary to apply joining with an extension panel (reinforcing member) along the entire periphery of each flange. As a result, assembly of the vehicle body becomes very complicated and the weight of the vehicle body increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle body structure capable of simplifying assembly, reducing the weight of the vehicle body, and increasing the strength and rigidity of the vehicle body.

In order to solve the above problems, the present invention proposes the following means.
(1) The vehicle body structure according to the present invention includes a first member (for example, the wheel house inner panel 41 of the embodiment, Side sill inner panel 71, dashboard upper panel 92) and a second opening (for example, outer opening 51 of the embodiment) are formed in a U-shaped cross section, and the first opening and the second opening face each other. A second member (for example, the wheel house outer panel 42, the side sill outer panel 72, and the dashboard lower panel 91 of the embodiment) arranged with respect to the first member so as to provide the first member and the second member One of the members (for example, the wheel house inner panel 41, the side sill inner panel 71, and the dashboard upper panel 92 of the embodiment) is one of the first opening and the second opening (for example, the The widening portion (for example, the widening portions 44 and 74 in the embodiment) that is inclined so that the opening becomes larger toward the inner opening 43), and the opening becomes smaller from the widening portion to the one opening and a slanted flange (e.g., slanted flanges 45, 75, 95 of the embodiments) slanted in the opposite direction with respect to the flared portion, and the other member of the first member and the second member. (For example, the wheel house outer panel 42, the side sill outer panel 72, and the dashboard lower panel 91 of the embodiment) is the other opening of the first opening and the second opening (for example, the outer opening 51 of the embodiment). and a slanted side wall (eg, slanted side walls 52, 81, 96 in the embodiments) slanted along the slanted flange to a point where the slanted flange and the slanted side wall are matingly joined.

According to this configuration, the first member and the second member are each formed to have a U-shaped cross section, one member having the enlarged portion and the inclined flange, and the other member having the inclined side wall. Furthermore, the slanted flange of one member and the slanted side wall of the other member are joined in a fitted state.

Here, when joining the 1st member and the 2nd member, for example, the 1st opening and the 2nd opening may be shifted. In this case, a portion of the slanted flange and a portion of the slanted side wall are in contact. In this state, the joining of the first member and the second member is continued. Therefore, the part of the inclined flange and the part of the inclined side wall that are in contact serve as a guide, and the other part of the inclined flange and the other part of the inclined side wall can be positioned closer to each other in the contact direction.
As a result, both the slanted flange and the slanted side wall can be brought into contact over the entire area, and the slanted flange and the slanted side wall can be joined in the correct position. Therefore, it is possible to simplify the assembly of the first member and the second member.

By the way, it is conceivable that a load is input in the joining direction of the first member and the second member. In this case, the inclined flange and the inclined side walls are joined in the direction of shear loading. Therefore, the slanted flange and the slanted side wall are firmly joined, for example, without using a reinforcing member so that the slanted flange and the slanted side wall do not separate from the load input in the joining direction of the first member and the second member. can. Thus, by using the first member and the second member in the vehicle body, the weight of the vehicle body can be reduced, and the strength and rigidity of the vehicle body can be increased.
In the following, the joining of the inclined flange and the inclined side wall in the direction in which the shear load is received may be referred to as "joining by shearing".

(2) The one member has a ridgeline portion (for example, the inner ridgeline portions 46 and 76 in the embodiment) formed at the intersection of the inclined flange and the expanded portion, and the other member has: A reinforcement flange (for example, the reinforcement flanges 53, 82, 97 of the embodiment) may be formed at a portion corresponding to the ridgeline and projected in a direction away from the ridgeline.

According to this configuration, the ridgeline portion is formed at the intersection of the inclined flange and the widened portion of one member. Further, a reinforcing flange is formed on the other member, and the reinforcing flange protrudes in the direction away from the ridgeline at a portion corresponding to the ridgeline. Therefore, by reinforcing the inclined side wall with the reinforcing flange, the inclined side wall can be firmly joined to the inclined flange. Accordingly, by using the first member and the second member for the vehicle body, the strength and rigidity of the vehicle body can be easily increased with a simple configuration.

(3) The other member has another ridgeline portion (for example, the outer ridgeline portions 54, 83, 98 of the embodiment) formed at the intersection of the inclined side wall and the reinforcing flange, and the other The ridgeline portion may be provided at a position overlapping the ridgeline portion in the joining direction of the first member and the second member.

According to this configuration, another ridge line portion is formed at the intersection of the inclined side wall of the other member and the reinforcing flange. Furthermore, it was arranged at a position overlapping the ridgeline portion in the joining direction of the first member and the second member. Therefore, by using the first member and the second member in the vehicle body, for example, another ridgeline portion can be arranged at a position overlapping the ridgeline portion in the vehicle width direction. As a result, the vibration in the vehicle width direction received (inputted) while the vehicle is running can be suppressed at both the other ridgeline portions and the ridgeline portions, and the strength and rigidity of the vehicle body can be increased.

(4) The one member is a wheel house inner panel (for example, the wheel house inner panel 41 of the embodiment) that forms an inner portion in the vehicle width direction of the wheel house (for example, the rear wheel house 14 of the embodiment). The other member is a wheel house outer panel (for example, the wheel house outer panel 42 of the embodiment) forming an outer portion of the wheel house in the vehicle width direction, and the inclined flange extends around the entire circumference of the wheel house. may be provided over the

According to this configuration, the inclined flange is provided over the entire circumference of the wheel house. Therefore, the inclined flange and the inclined side wall can be joined over the entire circumference of the wheel house. As a result, when vibration in the vehicle width direction is input from the suspension while the vehicle is running, the vibration of the wheel house can be suppressed by the joint between the inclined flange and the inclined side wall, and the strength and rigidity of the vehicle body can be increased.

(5) The wheel house is provided on the left and right sides in the vehicle width direction with a parcel cross member (for example, the upper cross member 33 of the embodiment) connected to the left and right wheel houses. A member may be superimposed and joined to the slanted flange and slanted side wall at the upper portion of the wheelhouse (eg, upper portion 14b in the embodiment).

According to this configuration, parcel cross members are connected to the left and right wheel houses. Furthermore, in the upper part of the wheelhouse, a parcel cross member was superimposed on the inclined flange and the inclined side wall, and the superimposed three members (three pieces) were joined. Therefore, the parcel cross member can be firmly joined to the inclined flange and the inclined side wall. Further, the left and right wheel houses are each joined by, for example, shearing joints of the inclined flanges and the inclined side walls, thereby increasing the strength and rigidity against vibration in the vehicle width direction.
As a result, the parcel cross members can be firmly joined to the upper parts of the left and right wheel houses, and the upper parts of the left and right wheel houses can be firmly connected by the parcel cross members, thereby further increasing the strength and rigidity of the vehicle body.

According to the present invention, simplification of assembly and weight reduction of the vehicle body can be achieved, and the strength and rigidity of the vehicle body can be increased.

It is a top view showing the body structure of one embodiment concerning the present invention. FIG. 3 is a perspective view showing a rear wheel house provided in the vehicle body structure of one embodiment; FIG. 3 is a cross-sectional view of the rear wheel house of FIG. 2 taken along line III-III; FIG. 4 is a schematic diagram showing a cross section of the rear wheel house shown in FIG. 3; It is a bottom view showing a rear wheel house provided in the vehicle body structure of one embodiment. FIG. 6 is an enlarged cross-sectional view of a VI portion in the rear wheel house of FIG. 5; 1 is a cross-sectional view taken along line VII-VII of a vehicle body structure of one embodiment; FIG. FIG. 7 is a cross-sectional view illustrating a procedure for bringing a portion of the inclined flange into contact with a portion of the inclined side wall when assembling the rear wheel house of the embodiment; It is sectional drawing explaining the procedure which makes both the inclined flange and the inclined side wall of one Embodiment contact in the whole area, and joins the inclined flange and the inclined side wall in the correct position. 1 is a cross-sectional view showing an example in which the present invention is applied to a side sill; FIG. 1 is a sectional view showing an example in which the present invention is applied to a cowl structure; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION A vehicle body structure according to an embodiment of the present invention will be described below with reference to the drawings. In the drawings, arrow FR indicates the front of the vehicle, arrow UP indicates the upper side of the vehicle, and arrow LH indicates the left side of the vehicle.
<Car body structure>
As shown in FIGS. 1 and 2, the vehicle body structure 10 includes, for example, left and right rear frames 12, 12, left and right rear wheel houses (wheel houses) 14, 14, and a rear bulkhead 15. .
The left and right rear frames 12, 12 extend toward the rear of the vehicle body from the rear end portions of the left and right side sills 17 (see FIG. 10). The left and right side sills 17 are members that extend in the longitudinal direction of the vehicle body along both sides in the vehicle width direction of the floor panel 22 that forms the floor of the vehicle compartment 21, and constitute a part of the vehicle body skeleton. The left and right rear frames 12, 12 are members that extend in the longitudinal direction of the vehicle body along both sides in the vehicle width direction of a rear floor panel 25 that forms the floor of the luggage compartment 24, and constitute a part of the vehicle body skeleton.

The left and right rear wheel houses 14, 14 are provided on the left and right rear frames 12, 12 and the rear bulkhead 15 so as to be spaced apart on the left and right sides in the vehicle width direction. In this state, the left and right rear wheel houses 14, 14 are arranged outside the left and right rear frames 12, 12 in the vehicle width direction, and the lower ends 14a, 14a are provided on the left and right rear frames 12, 12, respectively.
The left and right rear wheel housings 14, 14 are generally symmetrical members. Hereinafter, the left rear wheel housing 14 will be described in detail, and a detailed description of the right rear wheel housing 14 will be omitted. The same reference numerals are given to the components of the left and right rear wheel houses 14, 14, and the left rear wheel house 14 is abbreviated as "rear wheel house 14". The rear wheelhouse 14 will be described later in detail.

The rear bulkhead 15 is provided on the rear floor panel 25 and the left and right rear frames 12 , 12 and installed between the left and right rear wheel houses 14 , 14 . The rear bulkhead 15 is a member that is formed in a square annular shape when viewed from the front and constitutes a part of the vehicle body frame.
The rear bulkhead 15 includes left and right vertical members (legs) 31 , 31 , a lower cross member (lateral member) 32 and an upper cross member (parcel cross member, lateral member) 33 .

The left and right vertical members 31, 31 are raised from the left and right rear frames 12, 12 to the left and right ends of the upper cross member 33 so as to be inclined upward toward the rear of the vehicle body. The lower cross member 32 extends along the vehicle width direction along the rear floor panel 25 between the lower ends of the left and right vertical members 31 , 31 . The upper cross member 33 extends along the vehicle width direction along the front end of the parcel shelf 35 between the upper ends of the left and right vertical members 31 , 31 .

<Rear wheel house>
As shown in FIGS. 3 to 5, the rear wheel house 14 includes a wheel house inner panel (one member of the first member and the second member, inner member) 41 and a wheel house outer panel (the first member and the second member). The other member (outer member) 42 of the

The wheelhouse inner panel 41 is a panel that forms an inner portion of the rear wheelhouse 14 in the vehicle width direction. The wheel house inner panel 41 is formed to have a substantially U-shaped cross section (including a U-shaped cross section), and has an inner opening (one of the first opening and the second opening) 43, an enlarged portion 44, It has an inclined flange 45 and an inner ridgeline portion (ridgeline portion) 46 .

The inner opening 43 is formed at the outer end in the vehicle width direction of the wheel house inner panel 41 and opens outward in the vehicle width direction. The inner opening 43 is formed along the entire circumference of the wheelhouse inner panel 41 (that is, the rear wheelhouse 14).
The expanding portion 44 is inclined at a portion near the inner opening 43 such that the opening gradually expands toward the inner opening 43 .

The inclined flange 45 is inclined in the opposite direction to the expanded portion 44 so that the opening gradually narrows from the outer end of the expanded portion 44 to the inner opening portion 43 . The expanded portion 44 and the inclined flange 45 are bent to have a V-shaped cross section so as to protrude to the outside of the wheel house inner panel 41 .
The inner ridgeline portion 46 is formed in a ridgeline shape protruding to the outside of the wheel house inner panel 41 by the intersection of the inclined flange 45 and the expanded portion 44 .

Here, the widened portion 44, the inclined flange 45, and the inner ridgeline portion 46 extend from the front end portion 41a to the rear end portion 41b of the wheelhouse inner panel 41, for example, the wheelhouse inner panel 41 (that is, the rear wheelhouse 14). are provided all around.

The wheelhouse outer panel 42 is a panel that forms an outer portion of the rear wheelhouse 14 in the vehicle width direction. The wheel house outer panel 42 is formed in a substantially U-shaped cross section (including a U-shaped cross section), and includes an outer opening (the other opening of the first opening and the second opening) 51, an inclined side wall 52, and a reinforcing flange. 53 and an outer edge portion (another edge portion) 54 .

The outer opening 51 is formed at the inner end in the vehicle width direction of the wheel house outer panel 42 . The outer opening 51 is formed along the entire circumference of the wheelhouse outer panel 42 (that is, the rear wheelhouse 14). The outer opening 51 opens inward in the vehicle width direction so as to face the inner opening 43 . Specifically, the wheel house outer panel 42 is arranged with respect to the wheel house inner panel 41 so that the inner opening 43 and the outer opening 51 face each other. In addition, the outer opening 51 is opened larger than the inner opening 43 so that the inner opening 43 can be inserted thereinto.
The inclined side wall 52 is formed so as to cover the inclined flange 45 from the outside. Specifically, the inclined side wall 52 is inclined along the inclined flange 45 so that the opening gradually expands to the outer opening 51 at a portion near the outer opening 51 . That is, the slanted sidewall 52 is slanted parallel to the slanted flange 45 .

By inserting the inner opening 43 (that is, the inclined flange 45 ) of the wheel house inner panel 41 through the outer opening 51 , the inclined flange 45 of the wheel house inner panel 41 is inserted into the inclined side wall 52 . The outer peripheral surface of the inclined flange 45 is in contact with the inner peripheral surface of the inclined side wall 52 , and the outer peripheral surface of the inclined flange 45 is joined to the inner peripheral surface of the inclined side wall 52 in this state. In other words, the slanted flange 45 and the slanted side wall 52 are joined by "shear joint" to be described later in a fitted state.

Here, while the vehicle is running, for example, a load due to vibration in the vehicle width direction is input from the suspension (not shown) to the rear wheel house 14 . The suspension is supported, for example, at the upper portion 14b of the rear wheel house 14 at its upper end. Therefore, the load due to vibration is generally input in the joining direction (X direction) of the inclined flange 45 and the inclined side wall 52 . That is, the inclined flange 45 and the inclined side wall 52 are joined in the direction of receiving the shear load. Hereafter, the joining of the inclined flange 45 and the inclined side wall 52 in the direction of receiving the shear load may be referred to as "joining by shearing". Also, the vehicle width direction substantially coincides with the joining direction of the wheel house inner panel 41 and the wheel house outer panel 42 .
In the following description, for the sake of convenience, the vehicle width direction is assumed to match the joining direction of the wheel house inner panel 41 and the wheel house outer panel 42 in order to facilitate understanding of the configuration.

As shown in FIGS. 4 to 6, the reinforcement flange 53 is formed by bending a portion corresponding to the inner ridgeline portion 46 or the vicinity of the inner ridgeline portion 46 so as to intersect the inclined side wall 52 . . The reinforcement flange 53 extends from the inner ridgeline portion 46 so as to protrude in a direction away from the rear wheel house 14 toward the outside. The reinforcing flange 53 and the inclined side wall 52 are bent into a V-shaped cross section.
The outer ridgeline portion 54 is formed in a ridgeline shape by the intersection of the inclined side wall 52 and the reinforcing flange 53 . The outer ridgeline portion 54 is provided at a position overlapping the inner ridgeline portion 46 in the direction in which the wheel house inner panel 41 and the wheel house outer panel 42 are joined (that is, in the vehicle width direction).

Here, the inclined side wall 52, the reinforcing flange 53, and the outer ridgeline portion 54 extend, for example, from the front end portion 42a to the rear end portion 42b of the wheelhouse outer panel 42, over the entire circumference of the wheelhouse outer panel 42 (that is, the rear wheelhouse 14). is provided.

As shown in FIGS. 1 and 7, an upper cross member 33 is connected to the left and right rear wheel houses 14,14. Specifically, the upper cross member 33 is provided with left and right gussets 61 at its left end and right end, respectively. The left and right gussets 61, 61 receive the load input from the left and right suspensions, transmit the load to the upper cross member 33 connecting the left and right sides of the vehicle, and maintain the rigidity of the vehicle as a whole.

Specifically, the left gusset 61 is joined to the upper end portion 31 a of the left vertical member 31 . Further, the left gusset 61 has a left end 61a sandwiched between the inclined flange 45 and the inclined side wall 52 at the upper portion 14b of the left rear wheel house 14. As shown in FIG. The left end portion 61a of the left gusset 61, the inclined flange 45, and the inclined side wall 52 are joined to the upper portion 14b of the left rear wheel house 14 in a state where three members (three pieces) are superimposed.

The right gusset 61 is a member generally bilaterally symmetrical with the left gusset 61 . The right gusset 61 is joined to the upper end portion 31 a of the right vertical member 31 . Further, the right gusset 61 has a right end (not shown) sandwiched between the inclined flange 45 and the inclined side wall 52 at the upper portion 14b of the right rear wheelhouse 14, similarly to the left gusset 61. As shown in FIG. The right end portion of the right gusset 61, the inclined flange 45, and the inclined side wall 52 are joined to the upper portion 14b of the right rear wheel house 14 in a state where three members (three pieces) are superimposed.

Next, a procedure for assembling the rear wheel house 14 will be described with reference to FIGS. 8 and 9. FIG.
As shown in FIG. 8, when assembling (joining) the wheel house inner panel 41 and the wheel house outer panel 42, for example, the inner opening 43 and the outer opening 51 are displaced in the longitudinal direction and the vertical direction of the vehicle body. Sometimes.
In this case, a portion (one side) 45a of the inclined flange 45 of the wheel house inner panel 41 and a portion (one side) 52a of the inclined side wall 52 of the wheel house outer panel 42 come into contact with each other. In this state, the joining of the wheel house inner panel 41 and the wheel house outer panel 42 is continued.

As shown in FIG. 9, the inclined flange 45 is inclined such that the opening gradually narrows from the outer end of the expanded portion 44 to the inner opening portion 43 . The inclined side wall 52 is also inclined along the inclined flange 45 so that the opening gradually expands to the outer opening 51 .
Therefore, the part 45a of the inclined flange 45 and the part 52a of the inclined side wall 52 that are in contact with each other serve as guides, and the other part 45b of the inclined flange 45 and the other part 52b of the inclined side wall 52 come close to each other in a contacting direction. can be positioned at
As a result, both the slanted flange 45 and the slanted side wall 52 can be brought into contact over the entire area, and the slanted flange 45 and the slanted side wall 52 can be joined at the correct positions. Therefore, simplification of assembly of the wheel house inner panel 41 and the wheel house outer panel 42 can be achieved.

As described above, according to the vehicle body structure 10 of the embodiment, as shown in FIGS. 3 and 4, the wheel house inner panel 41 and the wheel house outer panel 42 are each formed to have a U-shaped cross section. Further, the wheelhouse inner panel 41 is formed with an enlarged portion 44 and an inclined flange 45 , and the wheelhouse outer panel 42 is formed with an inclined side wall 52 . Further, the inclined flange 45 of the wheel house inner panel 41 and the inclined side wall 52 of the wheel house outer panel 42 are joined by so-called "shear joint" in a fitted state.

Here, for example, a load due to vibration in the vehicle width direction is input from the suspension (not shown) to the rear wheel house 14 while the vehicle is running. Therefore, a load is input in the joining direction of the inclined flange 45 and the inclined side wall 52 . That is, the inclined flange 45 and the inclined side wall 52 are joined in the direction of receiving the shear load.
As a result, the inclined flange 45 and the inclined side wall 52 are firmly joined together without using, for example, a reinforcing member so that the inclined flange 45 and the inclined side wall 52 do not separate from the load applied due to the vibration in the vehicle width direction. can. Therefore, the weight of the vehicle body can be reduced, and the strength and rigidity of the vehicle body can be increased.

An inner ridge line portion 46 is formed at the intersection of the inclined flange 45 and the expanded portion 44 of the wheel house inner panel 41 . A reinforcement flange 53 is formed on the wheel house outer panel 42 , and the reinforcement flange 53 protrudes outward from the rear wheel house 14 in a direction away from the inner ridge line 46 at a portion corresponding to the inner ridge line 46 . Therefore, by reinforcing the inclined side wall 52 with the reinforcing flange 53 , the inclined side wall 52 can be firmly joined to the inclined flange 45 . As a result, the strength and rigidity of the vehicle body can be easily increased with a simple configuration.

Furthermore, as shown in FIG. 6, an outer ridgeline portion 54 is formed at the intersection of the inclined side wall 52 of the wheel house outer panel 42 and the reinforcing flange 53 . Further, the outer ridgeline portion 54 is arranged at a position overlapping the inner ridgeline portion 46 in the joining direction of the wheel house inner panel 41 and the wheel house outer panel 42 (that is, the vehicle width direction). As a result, for example, vibration in the vehicle width direction received (inputted) while the vehicle is running can be suppressed at both the outer ridgeline portion 54 and the inner ridgeline portion 46, and the strength and rigidity of the vehicle body can be increased.

In addition, as shown in FIG. 5, an inclined flange 45 is provided over the entire circumference of the rear wheel house 14 . Therefore, the inclined flange 45 and the inclined side wall 52 can be joined over the entire circumference of the rear wheel house 14 . As a result, for example, when vibration in the vehicle width direction is input from the suspension while the vehicle is running, the vibration of the rear wheel house 14 can be suppressed by the joint between the inclined flange 45 and the inclined side wall 52, and the strength and rigidity of the vehicle body can be improved. can be enhanced.

1 and 7, left and right gussets 61, 61 of the upper cross member 33 are connected to the left and right rear wheel houses 14, 14, respectively.
Here, the left end portion 61a of the left gusset 61 is sandwiched between the inclined flange 45 and the inclined side wall 52 at the upper portion 14b of the left rear wheel house 14, and the three overlapping members are joined. Thus, left gusset 61 of upper cross member 33 is firmly joined to inclined flange 45 and inclined side wall 52 . Further, the left rear wheel house 14 has, for example, an inclined flange 45 and an inclined side wall 52 joined by shearing.

A right end portion 61 a of the right gusset 61 is joined to the upper portion 14 b of the right rear wheel house 14 like the left end portion 61 a of the left gusset 61 .
Therefore, the left and right rear wheel houses 14, 14 have enhanced strength and rigidity against vibration in the vehicle width direction. As a result, the upper cross member 33 can firmly connect the upper parts 14b, 14b of the left and right rear wheel houses 14, 14, thereby further increasing the strength and rigidity of the vehicle body.

The technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.
For example, in the above embodiment, an example in which the wheel house inner panel 41 is formed with the enlarged portion 44 and the inclined flange 45, etc., and the wheel house outer panel 42 is formed with the inclined side wall 52, the reinforcing flange 53, etc. has been described. Not exclusively. As another example, for example, the wheel house outer panel 42 may be formed with the enlarged portion 44 and the inclined flange 45, and the wheel house inner panel 41 may be formed with the inclined side wall 52, the reinforcing flange 53, and the like.

Further, in the above-described embodiment, an example in which the present invention is applied to the rear wheel house 14 has been described, but the present invention is not limited to this. As another example, the present invention may be applied to side sills 17, as shown in FIG.
Since the side sill 17 is generally formed vertically symmetrically, the same reference numerals are given to the upper and lower portions, and only the upper portion will be described, and the description of the lower portion will be omitted.
That is, the side sill 17 includes a side sill inner panel (one of the first member and the second member, the inner member) 71 and a side sill outer panel (the other of the first member and the second member, the outer member) 72. I have. The side sill inner panel 71 has an enlarged portion 74, an inclined flange 75, and an inner ridge portion (ridge portion) 76 on the upper wall portion 71a. The side sill outer panel 72 has an inclined side wall 81, a reinforcing flange 82, and an outer edge portion (another edge portion) 83 on the upper wall portion 72a.
The inclined flange 75 of the side sill inner panel 71 and the inclined side wall 81 of the side sill outer panel 72 are joined in a fitted state.

Here, for example, a load due to vibration in the vehicle width direction is input to the side sill 17 while the vehicle is running. That is, the load is input in the joining direction of the inclined flange 75 and the inclined side wall 81 . Therefore, the inclined flange 75 and the inclined side wall 81 are joined by a so-called "shear joint" in the direction of receiving the shear load.
As a result, the inclined flange 75 and the inclined side wall 81 are firmly joined together without using, for example, a reinforcing member so that the inclined flange 75 and the inclined side wall 81 do not separate from the load applied due to the vibration in the vehicle width direction. can. Therefore, the weight of the vehicle body can be reduced, and the strength and rigidity of the vehicle body can be increased.

Further, when assembling the side sill inner panel 71 and the side sill outer panel 72, for example, the inclined flange 75 of the upper wall portion 71a and the inclined side wall 81 of the upper wall portion 72a serve as guides. Therefore, the inclined flange 75 of the lower wall portion 71b and the inclined side wall 81 of the lower wall portion 72b can be positioned closer to each other in the contact direction.
As a result, the inclined flange 75 of the upper wall portion 71a and the inclined side wall 81 of the upper wall portion 72a can be joined at correct positions, and the inclined flange 75 of the lower wall portion 71b and the inclined side walls 81 of the lower wall portion 72b can be joined at correct positions. . Therefore, the assembly of the side sill inner panel 71 and the side sill outer panel 72 can be simplified.

Further, the present invention may be applied to a cowl structure 18 as shown in FIG. The cowl structure 18 includes a dashboard lower panel (the other of the first and second members, an outer member) 91, a dashboard upper panel (one of the first and second members, an inner member) 92, A windshield lower support 93 is provided. Dashboard upper panel 92 has an angled flange 95 . Dashboard lower panel 91 has sloping sidewalls 96 , reinforcing flanges 97 and outer ridges (other ridges) 98 .
The inclined flange 95 of the dashboard upper panel 92 and the inclined side wall 96 of the dashboard lower panel 91 are joined.

Here, for example, a load due to vertical vibration is input to the cowl structure 18 while the vehicle is running. That is, the load is input in the joining direction of the inclined flange 95 and the inclined side wall 96 . Therefore, the inclined flange 95 and the inclined side wall 96 are joined by a so-called "shear joint" in the direction of receiving the shear load.
As a result, the inclined flange 95 and the inclined side wall 96 can be firmly joined without using, for example, a reinforcing member so that the inclined flange 95 and the inclined side wall 96 do not separate from the load applied by the vertical vibration. . Therefore, the weight of the vehicle body can be reduced, and the strength and rigidity of the vehicle body can be increased.

Also, when assembling the dashboard upper panel 92 and the dashboard lower panel 91, for example, the inclined side wall 96 of the dashboard lower panel 91 serves as a guide. Therefore, the inclined flange 95 of the dashboard upper panel 92 can be joined at the correct position. As a result, assembly of the dashboard upper panel 92 and the dashboard lower panel 91 can be simplified.

In addition, it is possible to appropriately replace the constituent elements in the above-described embodiment with well-known constituent elements without departing from the spirit of the present invention, and the modifications described above may be combined as appropriate.

10 Body structure 14 Rear wheel house (wheel house)
14b upper part of wheel house 17 side sill 18 cowl structure 33 upper cross member (parcel cross member)
41 wheel house inner panel (one member of the first member and the second member)
42 wheel house outer panel (the other member of the first member and the second member)
43 inner opening (one of the first opening and the second opening)
44, 74 Expanded portions 45, 75, 95 Inclined flange 46 Inner ridge (ridge)
51 outer opening (the other opening of the first opening and the second opening)
52, 81, 96 Slanted side walls 53, 82, 97 Reinforcing flanges 54, 83, 98 Outer ridge (other ridge)
61 gusset 71 side sill inner panel (one member of the first member and the second member)
72 side sill outer panel (the other member of the first member and the second member)
91 dashboard lower panel (the other member of the first member and the second member)
92 dashboard upper panel (one member of the first member and the second member)

Claims (5)

a first member formed in a U-shaped cross section having a first opening;
a second member formed in a U-shaped cross section having a second opening and arranged with respect to the first member so that the first opening and the second opening face each other;
one member of the first member and the second member,
a widening portion inclined so that the opening becomes larger toward one of the first opening and the second opening;
a slanted flange that is slanted in a direction opposite to the widening portion so that the opening becomes smaller from the widening portion to the one opening;
The other member of the first member and the second member is
a slanted sidewall slanted along the slanted flange to the other of the first opening and the second opening;
wherein the slanted flange and the slanted side wall are joined in a fitted manner;
A vehicle body structure characterized by: The one member is
a ridgeline portion formed at the intersection of the inclined flange and the widening portion;
The other member is
Having a reinforcing flange formed at a portion corresponding to the ridge line and projecting in a direction away from the ridge line,
The vehicle body structure according to claim 1, characterized in that: The other member is
another ridge formed at the intersection of the inclined side wall and the reinforcing flange;
The other ridgeline portion is
Provided at a position overlapping the ridge line in the joining direction of the first member and the second member,
The vehicle body structure according to claim 2, characterized in that: the one member is a wheelhouse inner panel forming an inner portion of the wheelhouse in the vehicle width direction;
the other member is a wheel house outer panel forming an outer portion of the wheel house in the vehicle width direction;
The inclined flange is provided over the entire circumference of the wheel house,
The vehicle body structure according to claim 1, characterized in that: The wheel house is provided on the left and right sides in the vehicle width direction with a parcel cross member connected to the left and right wheel houses,
The parcel cross member comprises:
joined to the inclined flange and the inclined side wall in an overlapping state at the upper part of the wheel house;
The vehicle body structure according to claim 4, characterized in that:

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