JP2015116926A - Vehicle body structure of vehicle and manufacturing method of vehicle body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle body structure of a vehicle which achieves better collision safety performance than a conventional vehicle body structure, and to provide a manufacturing method of a vehicle body.SOLUTION: A vehicle body structure of a vehicle includes: a division panel 13 which extends in a width direction in a vehicle body 1 pivotally supporting wheels FT of the vehicle and divides a front chamber 2 or a rear chamber 4 of the vehicle body 1 from a passenger compartment 3; and side panel parts 17, each of which is joined to the division plate 13 at a position in a side part of the vehicle body 1 that is located at a front corner or a rear corner of the passenger compartment 3. Each side panel part 17 has an outer flange part 32 extending in a vertical direction of the vehicle body 1. The division panel 13 includes an inner flange part 31 extending in the vertical direction. The side panel part 17 includes an extension part 381 extending inward in the width direction. The outer flange part 32 is formed at an inner end part of the extension part 381. The vehicle body structure of the vehicle has joint parts 37, each of which is formed by the inner flange part 31 and the outer flange part 32 being joined to each other.

Description

  The present invention relates to a vehicle body structure of a vehicle and a method for manufacturing the vehicle body.

Patent documents 1-3 have disclosed the body structure about the front part of a car.
In these documents, a pair of A pillars are joined to both sides in the width direction of a dash panel as a toe board panel that partitions the front chamber of the vehicle body and the passenger compartment. The passenger compartment can be defined by joining the toe board panel and the pair of A pillars.
By joining a pair of A pillars to the left and right of the toe board panel, the side structure of the vehicle body having the A pillar can be overlapped and joined to the side surface of the center structure of the vehicle body having the toe board panel, and the manufacture of the vehicle body becomes easy. .

JP 2004-299633 A JP 2012-096717 A JP 2011-235688 A

However, in order to overlap and join the toe board panel and the A pillar, first, an inner flange part is provided at the width direction end part of the toe board panel. Further, an outer flange portion is provided on the side panel portion of the A pillar. Next, the inner flange portion and the outer flange portion need to be overlapped and joined by spot welding or the like. As a result, the joined portion of the joined inner flange portion and outer flange portion protrudes forward from the surface by the toe board panel and the A pillar.
By the way, although it is not a test object in the current collision safety standards, for example, a vehicle such as an automobile may collide with an oncoming vehicle that travels at a high speed. In such a collision, the front wheel of the vehicle may drop off from the vehicle body due to a strong impact, and the dropped front wheel may be pushed into the toe board panel and the riding space.
When the dropped front wheel is pushed into the toe board panel and the riding space from the front, the toe board panel is deformed, and the force to peel off the joint between the inner flange part and the outer flange part protruding forward acts there's a possibility that.
If the outer flange portion is peeled off from the inner flange portion, the joined state between the toe board panel and the A pillar is released, and a gap is generated.

As described above, in the vehicle, the peeling force is less likely to act on the joint portion formed by joining the partition panel such as the toe board panel and the side panel portion such as the A pillar, and further improves the collision safety performance. Is required.
Therefore, the problem to be solved by the present invention is to provide a vehicle body structure and a vehicle body manufacturing method having a better collision safety performance than conventional ones.

  As a means for solving the above-mentioned problems, a vehicle body structure according to the present invention extends in the width direction in a vehicle body that can support the wheels of the vehicle, and partitions the front or rear chamber of the vehicle body from the passenger compartment. A partition panel, and a side panel portion joined to the partition panel at a position that is a front corner or a rear corner of the passenger compartment at a side portion of the vehicle body, and the side panel portion is an outer portion that extends in a vertical direction of the vehicle body. The partition panel has an inner flange portion that extends in the vertical direction, the side panel portion has an overhang portion that projects inward in the width direction, and the outer flange portion has an overhang portion. And a joint portion formed by joining an inner flange portion and an outer flange portion.

  In the vehicle body structure according to the present invention, the overhang portion is formed by bending or curving a part of the front panel side or a part of the rear chamber side of the side panel part inward in the width direction. It is preferable.

  In the vehicle body structure according to the present invention, the side panel portion includes an inner side panel provided on the inner side in the width direction and an outer side panel provided on the outer side in the width direction, and the inner side panel and the outer side panel. Are extended in parallel or substantially in parallel in the longitudinal direction of the vehicle body, and the overhanging portion is preferably formed by bending or curving the inner side panel and the outer side panel inward in the width direction.

  In the vehicle body structure according to the present invention, the side panel portion includes an inner side panel portion provided on the inner side in the width direction and an outer side panel portion provided on the outer side in the width direction. The side panels extend away from each other toward the front or the rear of the vehicle body, and the overhanging portion is a part of the front chamber side of the outer side panel or the side panel when viewed from the front or the rear. It is preferable that the rear side panel is formed by extending the outer side panel inward in the width direction so that a part of the rear chamber side overlaps the inner side panel.

  In the vehicle body structure according to the present invention, it is preferable that the joint portion is located inside the inner side surface of the wheel in the width direction.

  In the vehicle body structure according to the present invention, it is preferable that the joint is positioned in the front-rear direction of the wheel in the up-down direction.

  In the vehicle body structure according to the present invention, in the vertical direction, the joint portion is preferably positioned at least in the front-rear direction with respect to the rotation center of the wheel.

  A vehicle body manufacturing method according to the present invention is a vehicle body manufacturing method capable of pivotally supporting a vehicle wheel, and an end portion of the vehicle body in a width direction of a partition panel that partitions a front chamber or a rear chamber of the vehicle body and a passenger compartment In the inner flange portion formed so as to protrude in the front-rear direction, and the side panel portion that defines the passenger compartment by being joined to the partition panel, it is formed at a portion corresponding to the front or rear corner of the passenger compartment. The outer flange portion is joined on the inner side in the width direction from the surface of the outer flange portion on the passenger compartment side.

  According to the present invention, for example, when a dropped wheel or the like is pushed toward the passenger compartment, the joint is provided on the inner side in the width direction of the vehicle body by the overhanging portion, so that the wheel contacts the joint. , Stress does not act directly or is difficult to act. As a result, the joint portion is prevented from being greatly deformed and broken, and the passenger compartment does not open or is hardly opened from the joint portion. Therefore, the vehicle body structure having better collision safety performance than the conventional one and A method for manufacturing a vehicle body can be provided.

FIG. 1 is a perspective view showing a vehicle body of an automobile to which the present invention is applied. FIG. 2 is a partially exploded perspective view of a center structure used for manufacturing the vehicle body of FIG. FIG. 3 is a partially exploded perspective view of a side structure used for manufacturing a vehicle body. FIG. 4 is a schematic cross-sectional view showing a manufacturing process for joining the center structure and the side structure in the vehicle body of FIG. FIG. 5 is a partially enlarged perspective view showing a joint state between the center structure and the side structure, which has a joint portion provided with an overhang portion. FIG. 6 is a schematic cross-sectional view showing a toe board panel and peripheral members. FIG. 7 is a schematic front view showing a toe board panel and peripheral members. FIG. 8 is an explanatory diagram of an example of a collision mode of the vehicle body. FIG. 9 is a schematic cross-sectional view illustrating a collision state in a vehicle body of a comparative example. 10 is a schematic cross-sectional view showing a collision state in the vehicle body of FIG. FIG. 11 is a schematic cross-sectional view showing a modification of the overhang portion.

  An embodiment of a vehicle body structure according to the present invention will be described with reference to the drawings.

FIG. 1 shows a vehicle body 1 that can employ the present invention. FIG. 1 is a perspective view showing the vehicle body 1.
A vehicle body 1 shown in FIG. 1 has a front chamber 2 in which an engine or the like is disposed, a passenger chamber 3 in which passengers ride, and a rear chamber 4 in which luggage or the like is loaded. That is, the automobile body 1 has a three-box structure.

  A pair of floor members (not shown) and a floor cross member 12 are provided above and below the floor panel 11 laid below the passenger compartment 3. The pair of floor members are frame-like members extending in the front-rear direction of the vehicle body 1. The floor cross member 12 is a frame-like member extending in the left-right direction of the vehicle body 1. The pair of floor members and the plurality of floor cross members 12 are joined to each other at the intersections. By this bonding, a well structure having a plurality of well shapes is formed. The floor panel 11 of the passenger compartment 3 is stiffened by the well structure.

A toe board panel 13 is erected on the front edge of the floor panel 11. The passenger compartment 3 and the front compartment 2 are partitioned by the toeboard panel 13.
A pair of front side members 14 are joined to the front ends of the pair of floor members. The pair of front side members 14 extends in the front-rear direction in the front chamber 2. In the front chamber 2, a front cross member (not shown) extending in the left-right direction is fixed between the pair of front side members 14 so as to be bridged. An axle (not shown) extending in the left-right direction is attached to the front cross member. The axle is fitted with a pair of front wheels (not shown) at both ends. The pair of front wheels are disposed on the front side of the toe board panel 13. A pair of side sills 15 are joined to the left and right ends of the plurality of floor cross members 12.
A torque box 16 is attached from the left and right end portions of the toe board panel 13 and a pair of side sills 15 and a front lower end portion of a pair of A pillars 17 to be described later to the front lower side of these members.

An A-pillar 17 erected substantially vertically is joined to the front end of the side sill 15. A pair of A pillars 17 are joined to both end portions of the toe board panel 13 in the left-right direction of the vehicle body 1. The A pillar 17 extends substantially in the vertical direction in the vicinity of the joint with the side sill 15, and bends and extends so as to incline backward from the middle of the upper side.
A front upper member 18 is joined to a substantially central portion of the A pillar 17 in the vertical direction. The front upper member 18 extends forward from the A pillar 17. A reinforcement stiffening member 19 is joined to the A pillar 17 and the front upper member 18 below the A pillar 17 and the front upper member 18. The front end of the A pillar 17 is joined to the radiator frame 20 together with the front ends of the pair of front side members 14. A front bumper beam 21 is fixed to the entire surface of the radiator frame 20.

A B pillar 22 erected in a substantially vertical direction is joined to a substantially central portion of the side sill 15 in the front-rear direction. Further, a C pillar 23 standing in a substantially vertical direction is joined to the rear side of the side sill 15 in the front-rear direction. A roof side rail 24 extending in the front-rear direction is joined between the upper end of the A pillar 17 and the upper end of the C pillar 23. The upper end of the B pillar 22 is joined to the substantially central portion of the roof side rail 24. A roof cross member 25 extending in the width direction of the vehicle body 1 is provided between the pair of roof side rails 24.
A front door (not shown) is attached to the A pillar 17 so as to be openable and closable. In the front door, a front door beam, a front door cross member, and the like are provided. A rear door (not shown) is attached to the B pillar 22 so as to be opened and closed. A rear door beam, a rear door cross member, and the like are provided in the rear door.
When the opening / closing mode of the door of the vehicle is a mode in which the front door and the rear door are rotated in opposite directions, that is, when the door is a so-called double door, the rear door is attached to the C pillar 23.

A rear bulkhead panel 26 is erected at the rear end of the floor panel 11. The passenger compartment 3 and the rear compartment 4 are partitioned by the rear bulkhead panel 26. A pair of left and right C pillars 23 are joined to both edge portions of the rear bulkhead panel 26 in the width direction of the vehicle body 1.
A pair of rear side members (not shown) are joined to the rear ends of the pair of side sills 15. The pair of rear side members protrude rearward from the rear bulkhead panel 26. A rear bumper beam (not shown) is fixed to the rear ends of the pair of rear side members.

The vehicle body 1 having the skeleton structure of FIG. 1 is manufactured by joining side structures 7 having A pillars 17 and the like from the left and right sides at both ends in the width direction of the vehicle body 1 in a center structure 6 having a toeboard panel 13 and the like, for example. Can do. Further, the vehicle body 1 of the automobile is completed by joining, for example, an outer plate such as a bonnet hood plate, left and right fender plates, a trunk lid plate, and a roof plate to the vehicle body 1 having the skeleton structure shown in FIG. Thereby, the front room 2, the passenger compartment 3 and the rear room 4 of the automobile are defined.
The plurality of skeleton members in the center structure 6 or the side structure 7 can be joined by spot welding or spot welding by laser welding or the like. For example, the toe board panel 13 and the A pillar 17 are joined by spot welding or laser welding.

FIG. 2 is an exploded perspective view showing a part of the center structure 6 used for manufacturing the vehicle body of FIG.
FIG. 2 shows a toe board panel 13 and a dash panel 27 as members constituting the center structure 6. The dash panel 27 is joined to the upper edge of the toe board panel 13. A joined body of the toeboard panel 13 and the dash panel 27 serves as a wall member that partitions the front chamber 2 and the passenger compartment 3 of the vehicle body 1 shown in FIG. The toe board panel 13 is an example of a partition panel in the present invention.
The center structure 6 is disposed at a substantially central portion in the width direction of the vehicle body 1.

The toe board panel 13 is a molded body having an appropriate shape by press molding a single metal plate, for example. The toe board panel 13 is a plate material extending from the left end of the vehicle body 1 to the right end. The toe board panel 13 is provided with a notch C so that the width in the left-right direction of the toe board panel 13 decreases toward the inside at a substantially central part in the up-down direction. Therefore, as shown in FIG. 2, the toe board panel 13 has a large width in the left-right direction at the top and is small at the bottom.
Inner flange portions 31 are provided at both ends of the toeboard panel 13 in the width direction, that is, at the upper and lower left and right end portions, respectively. The inner flange portion 31 extends in the vertical direction at the left and right end portions of the toe board panel 13. The inner flange portion 31 projects forward from both ends of the toe board panel 13 in the center structure 6.

FIG. 3 is a partial perspective view of the side structure 7 used for manufacturing the vehicle body 1. FIG. 3 shows an A pillar 17, a side sill 15, a front upper member 18, and a reinforcement stiffening member 19 as members constituting the side structure 7. The A pillar 17 and the side sill 15 are examples of the side panel portion in the present invention.
An A-pillar 17 erected substantially vertically is joined to the front end of the side sill 15. A front upper member 18 is joined forward at a substantially central portion of the A pillar 17 in the height direction. A reinforcement stiffening member 19 is joined between the front upper member 18 and the A pillar 17.
The side structure 7 stands up along the left and right edges of the center structure 6 to form a side surface portion of the vehicle body 1.

  The A pillar 17 has an overhang portion 381 and an outer flange portion 32. The overhang portion 381 is provided below the front surface of the A pillar 17. The overhang portion 381 is a portion that projects inward in the width direction of the vehicle body 1. The outer flange portion 32 protrudes forward from the inner end portion in the width direction of the overhang portion 381. The outer flange portion 32 extends substantially in the vertical direction.

Next, a manufacturing process for joining the center structure 6 and the side structure 7 in the vehicle body 1 shown in FIG. 1 will be described with reference to FIG. FIG. 4 is a schematic cross-sectional view showing the toe board panel 13 and the A pillar 17 when cut in the vicinity of the joint between the inner flange portion 31 and the outer flange portion 32.
The structure and shape of the joined body of the toe board panel 13 and the A pillar 17 will be described later with reference to FIG.
The A pillar 17 in FIG. 4 has an inner side panel 331 and an outer side panel 341. The A pillar 17 becomes a hollow square member by joining the inner side panel 331 and the outer side panel 341 in the rear (not shown).

  The inner side panel 331 is a molded body obtained by molding a single metal plate, for example. The inner side panel 331 is a plate-like member formed by bending. More specifically, the inner side panel 331 has a portion in which a part of the front is bent inward in the width direction of the vehicle body 1 and is bent again to protrude forward. A portion protruding forward of the inner side panel 331 is the first outer flange portion 35. The first outer flange portion 35 is a front edge portion of the inner side panel 331 extending in the vertical direction. Since the first outer flange portion 35 is a part of the inner side panel 331, it extends in the vertical direction.

The outer side panel 341 is a molded body obtained by molding a single metal plate, for example. The outer side panel 341 is a plate-like member formed by bending. More specifically, the outer side panel 341 has a portion in which a part of the front side is bent inward in the width direction of the vehicle body 1 and is bent again to protrude forward. A portion protruding forward of the outer side panel 341 is the second outer flange portion 36. The second outer flange portion 36 is a front edge portion of the outer side panel 341 extending in the vertical direction. Since the second outer flange portion 36 is a part of the outer side panel 341, it extends in the up-down direction.
In the A pillar 17 shown in FIG. 4, the outer flange portion 32 of the A pillar 17 is formed by the overlapped first outer flange portion 35 and second outer flange portion 36.

  As long as the rigidity of the side structure 7 does not decrease, the inner side panel 331 and the outer side panel 341 may be a single steel plate. Specifically, one steel plate is bent at the rear not shown in FIG. 4, one end edge portion of the steel plate becomes a first outer flange portion, and the other end edge portion becomes a second outer flange portion. Similarly to the outer flange portion 32 of the pillar 17, the outer flange portion may be formed by the overlapped first outer flange portion and second outer flange portion.

  When joining the center structure 6 and the side structure 7, as shown in FIG. 4A, first, the A pillar 17 of the side structure 7 is arranged close to the toe board panel 13 of the center structure 6. At this time, the inner flange portion 31 and the outer flange portion 32 are overlapped.

Next, as shown in FIG. 4 (B), the inner flange portion 31 of the toe board panel 13 and the outer flange portion 32 of the A pillar 17 are joined together by spot welding or the like. Thereby, the joint part 37 which joined the inner flange part 31 of the toe board panel 13 and the outer flange part of the A pillar 17 is formed.
In addition, when joining the inner flange part 31 and the outer flange part 32 by spot welding etc., the several joining point by spot welding is discretely formed by the fixed space | interval.

FIG. 4C shows the toe board panel 13 and the A pillar 17 that have been joined. As shown in FIG. 4C, an overhang portion 381 is formed on the A pillar 17 in the joined body of the toe board panel 13 and the A pillar 17.
In FIG. 4C, the left side joining portion 37 and overhanging portion 381 of the vehicle body 1 are shown. However, a similar joint portion 37 and overhang portion 381 can also be attached to the right side of the vehicle body 1. That is, in the present embodiment, the joint portion 37 and the overhang portion 381 are a pair of portions that can be provided on both the left and right sides of the vehicle body 1.
As described above, the vehicle body 1 is manufactured in which the center structure 6 and the side structure 7 are joined and the overhanging portion 381 is provided, and the collision safety performance is further improved as compared with the related art.

  The material of the A pillar 17 having the overhanging portion 381 is, for example, a material that is not easily deformed or broken even when stress related to the collision acts on the front surface of the A pillar 17 and the overhanging portion 381. It is preferable to have high rigidity. The material of the A pillar 17 is preferably the same as the material of a high-rigidity member called a skeleton member among the components of the vehicle body 1 shown in FIG.

FIG. 5 is a schematic cross-sectional view showing a joined body of the toe board panel 13 and the A pillar 17 shown in FIG.
As shown in FIG. 5, the joint portion 37 is formed by joining the inner flange portion 31 of the toe board panel 13 and the outer flange portion 32 of the A pillar 17.
Hereinafter, the shape and structure of the A pillar 17 will be described in detail.

As described above, the A pillar 17 includes the inner side panel 331 and the outer side panel 341.
The inner side panel 331 includes a first extending portion 39, a first bent portion 40, and a first outer flange portion 35. The 1st extension part 39 is a site | part extended substantially parallel to the front-back direction. The first extending portion 39 is a portion facing the passenger compartment 3 of the A pillar 17. The first bent portion 40 is a portion where the front end edge portion of the first extending portion 39 is bent inward in the width direction of the vehicle body 1 and extends. The first outer flange portion 35 is a portion where the inner end edge portion of the first bent portion 40 is bent forward and extends.
The outer side panel 341 includes a second extending portion 41, a second bent portion 42, and a second outer flange portion 36. The 2nd extension part 41 is a site | part extended substantially parallel to the front-back direction. The second extending part 42 is a part facing the outside of the vehicle body 1. The second bent portion 42 is a portion where the front end edge portion of the second extending portion 41 is bent inward in the width direction of the vehicle body 1 and extends. The second outer flange portion 35 is a portion where the inner edge portion of the second bent portion 42 is bent forward and extends.
The first extending portion 39 and the second extending portion 41 are substantially parallel.
Further, the first bent part 40 is formed behind the second bent part 42.

The A pillar 17 has an overhang portion 381. The overhang portion 381 has a first bent portion 39 of the inner side panel 331 and a second bent portion 40 of the outer side panel 341. The inner side panel 331 and the outer side panel 341 are bent inward in the width direction to form the first bent portion 39 and the second bent portion 40. Thereby, the overhang | projection part 381 is also formed. In addition, when using the inner side panel 331 and the outer side panel 341 which are bent in advance to form the first bent portion 39 and the second bent portion 40, the A pillar 17 is formed by forming the joint portion 37 or the like. When the overall shape is completed, it may be considered that the overhanging portion 381 is also formed.
In the present embodiment, the first bent portion 40 that connects the first extending portion 39 and the first outer flange portion 35, and the second that connects the second extending portion 41 and the second outer flange portion 36. The bent part 42 is formed by bending. In the present invention, the member may be bent instead of being bent.

The overhang portion 381 is formed by extending the second bent portion 42 so as to overlap the inner side panel 331 when the vehicle body 1 is viewed from the front. Hereinafter, when the vehicle body 1 is viewed from the front, a portion of the overhanging portion 381 that overlaps the inner side panel 331 of the second bent portion 42 is referred to as an overlapping portion 431.
The position where the joint portion 37 is formed is determined according to the size D of the overlapping portion 431. For example, when the size D of the overlapping portion 431 is increased by forming the first bent portion 40 and the second bent portion 42 in the left-right direction, the joint portion 37 is formed inside the vehicle body 1. Become.
In the present embodiment, for example, when the front wheel FT is set to a straight traveling posture, when the contour of the inner side surface of the front wheel FT is projected rearward, the joint portion 37 is positioned on the inner side of the inner side surface of the front wheel FT. In FIG. 5, the outline of the inner surface of the front wheel FT is indicated by a two-dot chain line. The size D of the overlapping portion 431 is set so that the joint portion 37 is formed inside the inner side surface of the front wheel FT. In the present invention, the size of the wheel, the mounting position, etc. are slightly different depending on the vehicle model to which the present invention is applied.
In addition, it is preferable that the magnitude | size D of the duplication part 431 is 10 mm or more, for example. Particularly preferably, the size D of the overlapping portion 431 can be set, for example, from 10 mm to a position where the joint portion 37 contacts the outside in the left-right direction of the front side member 14.

In the present embodiment, a gap G is provided between the first bent portion 40 and the second bent portion 42. If the gap G is increased, a part of the A pillar 17 is enlarged toward the passenger compartment 3 side. However, since the rigidity of the A pillar 17 itself can be improved, the collision resistance performance of the vehicle is improved. More improved.
However, in the present invention, the interval G may be set to zero. When the gap G is 0, it is possible to reduce the installation area of the side panel such as the A pillar and the constituent materials, which can contribute to the reduction of the vehicle weight. Further, in the A pillar in the conventional side panel, the interval G is often zero. Therefore, even when the gap G is set to 0 in the present invention, the formed side panel portion such as an A pillar has no problem since it has the same strength as the conventional side panel portion.

Next, FIG. 6 is a partially enlarged perspective view of the embodiment shown in FIG.
As shown in FIG. 6, the joint portion 37 between the toe board panel 13 and the A pillar 17 protrudes forward at a portion below the reinforcement stiffening member 19 and inside in the width direction. On the lower side of the stiffening member 19, an overhanging portion 381 of the A pillar 17 is formed facing forward.
In addition, since the overhanging portion 381 is provided at a position where it does not interfere with the reinforcement member 19 for reinforcement, the overhanging portion 381 may affect the joint state between the stiffening member 19 and the A pillar 17. Absent. That is, in the present invention, the joint portion 37 can be formed to be shifted inward in the width direction of the vehicle body 1 without deteriorating the supplementary rigidity ability of the front upper member 18 by the stiffening member 19.

Next, FIG. 7 shows a schematic diagram when the toe board panel 13 and its peripheral members are viewed from the front. In FIG. 7, the front wheel FT is indicated by a broken line.
FIG. 7A is a schematic front view of the toe board panel 13 and members disposed in the vicinity thereof. As shown in FIG. 7A, one A pillar 17 is provided on the left and right, and the toe board panel 13 is disposed between the pair of A pillars 17. A pair of front side members 14 shown in FIG. 1 is arranged at a substantially central portion in the up-down direction of the toe board panel 13. Below the A pillar 17, an overhanging portion 381 that protrudes inward is formed on the outer side of each front side member 14. The toe board panel 13 and the A pillar 17 are joined, and a joining portion 37 is formed closer to the front side member 14.
FIG. 7B is a modification of the embodiment shown in FIG. Specifically, the vertical size of the toe board panel 13 and the vertical size of the overhanging portion 38 are set to be substantially the same. By extending the overhang portion 38 in the vertical direction from the overhang portion 381, the overhang portion 38 is attached from the upper end portion to the lower end portion in the front chamber (not shown in FIG. 7). Since the overhanging portion 38 is a part of the A pillar 17, it has high rigidity. Therefore, the anti-collision performance from the upper end to the lower end of the front chamber can be improved.

Next, the collision safety performance of the automobile having the vehicle body 1 shown in FIG. 1 will be described with reference to FIGS.
First, FIG. 8 is an explanatory diagram of an example of a collision mode of the vehicle body 1.
FIG. 8 shows a second automobile 52 together with the first automobile 51 having the vehicle body 1 shown in FIG. In FIG. 8, the outer shape of the first automobile 51 is indicated by a broken line.
For example, the second automobile 52 collides with the first automobile 51 being stopped from the front at a speed of 90 km / h. The second automobile 52 collides with the outside of the pair of front side members 14 of the first automobile 51, and on the left side with the left front side member 14 in the collision example shown in FIG. 8. In such a collision, the second vehicle 52 may cause the front wheel FT of the first vehicle 51 to fall off the axle. When the front wheel FT falls off, the stress acting on the front wheel FT at the time of dropping becomes an inertial force toward the rear. Furthermore, the vehicle body of the second automobile 52 and the parts and front wheels that have fallen from the second automobile 52 may have an inertial force that keeps pushing the front wheels FT of the first automobile 51 backward. The front wheel FT from which the first automobile 51 is dropped may crush the joint portion 37.

  FIG. 9 is a schematic cross-sectional view at the time of a vehicle body collision shown as a comparative example. In FIG. 9, the overhanging portion 381 shown in FIG. 4C is not provided. Since the overhanging portion 381 is not provided, the shape of the A pillar is different from the embodiment shown in FIGS. An inner side panel 33 that is not bent is used instead of the inner side panel 331, an outer side panel 34 that has a small lateral width is used instead of the outer side panel 341, and the inner side panel 33 and the outer side panel 34 are provided. A pillar 171 is used. Since the same members as those in the embodiment shown in FIG. 4C are used except that the overhanging portion 381 is not provided, the same reference numerals are given, and the detailed description of the common members is omitted. The collision form shown in FIG. 9 is an example in the case where a conventional vehicle collides with the form shown in FIG.

  First, as shown in FIG. 9A, the dropped front wheel FT moves in the direction of the white arrow, that is, backward. The dropped front wheel FT moves toward the joint portion 37 between the inner flange portion 31 and the outer flange portion 32. Since the joining portion 37 protrudes forward and no separate member is provided, when an interference object interferes with the joining portion 37, the stress from the interference object acts directly on the joining portion 37.

Next, as shown in FIG. 9B, the dropped front wheel FT causes the joint portion 37 to break. When the joint portion 37 is broken, the joint state between the inner flange portion 31 and the outer flange portion 32 is released. Specifically, in spot welding generally used for manufacturing a vehicle, when a force to peel off is applied to members joined by spot welding, the joint breaks. Furthermore, when one joint location is peeled off and broken, the other adjacent joint locations are also often peeled apart and broken. The dropped front wheel FT crushes the joint portion 37 by applying a stress to the joint portion 37 in the backward direction. When the joint portion 37 is crushed, a stress that peels off the inner flange portion 31 and the outer flange portion 32 acts on the joint portion 37. As a result, the joint portion 37 is broken.
The A pillar 171 having the inner side panel 33 and the outer side panel 34 formed with the outer flange portion 32 is a member having high rigidity since it is one of the skeleton members of the vehicle body 1. Therefore, even if the outer flange portion 32 is deformed and broken due to the interference of the front wheel FT, the entire A pillar 171 is not easily deformed or broken. For example, as shown in FIG. 9B, the A pillar 171 may remain in a deformation that allows the front surface of the outer side panel 34 to be slightly pushed backward.
Even if the joint portion 37 is deformed and broken, and the A pillar 171 is further deformed, if the force pushed behind the dropped front wheel FT is maintained, the moving direction of the front wheel FT is deviated and the toe board panel 13 is moved to the front wheel FT. May be pushed. Specifically, as shown in FIG. 9B, the dropped front wheel FT moves so that the toe board panel 13 is pushed into the passenger compartment 3. The front wheel FT moves rearward while deforming or breaking the inner flange portion 31 and deforms the toeboard panel 13 by pushing it backward. When the force toward the rear of the dropped front wheel FT is large, a part of the front wheel FT may enter the passenger compartment 3 as shown in FIG.

Thus, for example, in the case of the collision mode as shown in FIG. 8, the front wheel FT that has been dropped conventionally breaks the joint portion 37, deforms the toeboard panel 13 into the passenger compartment 3, and further occupants There was a case of entering the chamber 3.
When the joint portion 37 is broken, the passenger compartment 3 is hardly maintained in a sealed box shape. When the joint portion 37 is broken and the toeboard panel 13 is further deformed, the passenger compartment 3 and the front compartment 2 are communicated with each other, and the passenger compartment 3 is not maintained in a sealed box shape.

  Here, the case where the vehicle body 1 of FIG. 1 collides, which is an embodiment of the vehicle body structure of the vehicle according to the present invention, will be described with reference to FIG. The collision form shown in FIG. 10 is an example in the case where the vehicle according to the present invention collides with the form shown in FIG. FIG. 10 is a schematic cross-sectional view showing the joint portion 37 of the toe board panel 13 and the left A pillar 17 at the time of collision of the vehicle body 1 shown in FIG.

FIG. 10A is a schematic cross-sectional view when the dropped front wheel FT is pushed into the vehicle body.
When the dropped front wheel FT moves in the direction of the white arrow due to the inertial force, the pressing force of the collision object, etc., the front wheel FT may be pushed into the A pillar 17 as shown in FIG. There is.
As shown in FIG. 4C, in the present embodiment, the joint portion 37 is formed on the inner side in the width direction from the inner side surface of the outer flange portion 32 of the vehicle body 1. Specifically, by providing the overhanging portion 381, the position of the joint portion 37 is shifted to the inside in the width direction of the vehicle body 1 than in the prior art.

FIG. 10B is a schematic cross-sectional view when the dropped front wheel FT starts to contact the A pillar 17.
As shown in FIG. 10B, since the joint portion 37 is provided on the inner side in the vehicle body width direction as compared with the conventional art, the front wheel FT does not contact the joint portion 37 directly or is difficult. Therefore, the joint part 37 does not receive stress from the front wheel FT directly or is difficult to receive. In particular, in the present embodiment, as shown in FIG. 5, when the front wheel FT is projected rearward, the joint portion 37 is formed inside the contour line of the inner surface of the front wheel FT. As a result, even if the front wheel FT is pushed in with a large stress, the joint 37 does not receive or hardly receives the stress directly from the front wheel FT. Therefore, there is a possibility that the joint 37 is compressed backward and crushed. None or low.
Since the vehicle body structure of the vehicle according to the present invention changes the position of the joint portion as compared with the prior art, an interference such as a wheel does not directly interfere with the joint portion.

More specifically, the front wheel FT to be pushed comes into contact with the A pillar 17 having high rigidity. Thereby, the A pillar 17 does not greatly deform or break. Therefore, when the A pillar 17 is greatly deformed or broken, a stress to be peeled off acts on the joint portion 37, and the joint portion 37 does not break or hardly breaks.
Further, when the overhanging portion 381 is provided, the area of the A pillar 17 is larger than that in the conventional case. Therefore, the A pillar 17 receives stress from the front wheel FT that has fallen in a wider range than before. The stress received by the A pillar 17 including the overhanging portion 381 can be distributed to the entire A pillar 17 and various members such as the toe board panel 13 and the side sill 15 to which the A pillar 17 is joined.

  The large deformation or breakage of the toeboard panel 13 and the joint portion 37 is one of the major causes that the passenger compartment 3 is opened from the joint portion 37. In the present embodiment, large deformation or breakage of the toe board panel 13 can be prevented by the overhanging portion 381. As a result, the passenger compartment 3 is easily maintained in a sealed box shape.

As described above, in the vehicle body structure of the present embodiment, it is possible to effectively suppress the deformation and breakage of the toe board panel 13 and to further enhance the collision safety performance of the vehicle.
In the present embodiment, the formation work of the overhanging portion 381 and the welding work of the joint portion 37 do not require a special and large dedicated device, and a sheet metal working device used during a normal vehicle manufacturing process, A welding device or the like can be employed. Therefore, this embodiment can use the existing vehicle body production line as it is. In addition, changes in the manufacturing process can be minimized.

The above-described embodiment is an example in which the present invention is applied to the toe board panel 13 of the center structure 6.
In addition, for example, the present invention may be applied to the rear bulkhead panel 26 of the center structure 6. By providing the joint portion on the inner side in the width direction of the vehicle body as compared with the conventional case, the rear wheel or the collision object or the like is pushed into the joint portion between the rear bulkhead panel 26 and the C pillar 23 in the event of a collision from the rear of the vehicle body 1. Even if the passenger compartment 3 is to be closed, the passenger compartment 3 is not easily opened.

  In the vehicle body structure according to the present invention, a reinforcing member may be fixedly mounted on the passenger compartment side of the joint, for example, on the rear side of the joint 37 in the embodiment shown in FIG. The reinforcing member is preferably attached to the partition panel and the side panel portion across the joint portion. The reinforcing member is not particularly limited as long as it does not easily deform and break easily due to the stress acting on the joint. For example, a high-strength material used for the skeleton member of the vehicle body is used, and a simple rod-shaped member or frame A member, a cross-shaped member, a lattice-shaped member, or the like can be employed.

[Modification of overhang]
In the above-described embodiment, the overhanging portion 381 protrudes inward in the width direction of the vehicle body 1 from the surface of the outer flange portion 32 on the passenger compartment 3 side, that is, as shown in FIG. Was formed. Thus, the joint portion 37 formed by joining the outer flange portion 32 protruding forward from the inner edge of the overhang portion 381 and the inner flange portion 31 of the toe board panel 13 is It is located on the inner side in the width direction of the vehicle body 1 than the surface on the passenger compartment 3 side. In the vehicle body structure according to the present invention, the projecting portion can take various shapes and sizes as long as it projects inward in the width direction of the vehicle body from the surface of the outer flange portion on the passenger compartment side. 11A to 11C show a modification of the overhang portion in the vehicle body structure of the vehicle according to the present invention.
Differences between the embodiments shown in FIGS. 11A to 11C and the embodiments shown in FIGS. 4C and 5 are the shape of the overhang, the position of the joint, and the A pillar. It is the shape. Except for this difference, the same members as those of the embodiment shown in FIG. 4C and FIG. 5 are used, so that the same reference numerals are given and detailed description thereof is omitted.

FIG. 11A shows an embodiment in which an overhang portion 382 is provided.
Specifically, the difference between the overhanging portion 382 shown in FIG. 11A and the overhanging portion 381 shown in FIGS. 4C and 5 is the shape of the inner side panel. The overhanging portion 381 bent a part of the first extending portion 39 of the inner side panel 331 to form the first bent portion 40, whereas the overhanging portion 382 formed the inner side panel 332. It is curved.
The overhanging portion 382 needs to produce an inner side panel 332 that is curved. In order to manufacture the inner side panel 332, first, the first extending portion 39 in the overhang portion 381 is bent to an appropriate position inward in the width direction of the vehicle body 1. Thereby, the curved part 44 which has a curved surface is formed. Next, the first outer flange portion 35 protruding forward from the front end portion of the curved portion 44 is bent. Therefore, in the inner side panel 332, the curved portion 44 is a portion that is formed in place of the first bent portion 40.
In addition, an overlapping portion 432 is formed in the overhang portion 382. The overlapping portion 432 is a portion where the second bent portion 42 of the outer side panel 341 overlaps the inner side panel 332 when the vehicle body 1 is viewed from the front.

  In the overhang portion 381, the first extending portion 39 of the inner side panel 331 and the second extending portion 41 of the outer side panel 341 were substantially parallel. On the other hand, in the overhang portion 382, the curved portion 44 of the inner side panel 332 and the second extending portion 41 of the outer side panel 341 are not parallel. Further, the second extending portion 41 is disposed substantially parallel to the front-rear direction, whereas the bending portion 44 extends inward in the width direction of the vehicle body 1. Therefore, in the embodiment shown in FIG. 11A, the inner side panel 332 and the outer side panel 341 extend away from each other toward the front of the vehicle body 1.

  The embodiment shown in FIG. 11A is similar to the embodiment shown in FIGS. 4C and 5 when the front wheels (not shown in FIG. 11A) are projected rearward. In the width direction of 1, the joint portion 37 is located inside the inner surface of the front wheel.

  In the embodiment shown in FIG. 11A, since the overhang portion 382 is provided, the position of the joint portion 37 is on the inner side in the width direction of the vehicle body 1 than in the prior art. Thereby, for example, even when the dropped front wheel is pushed rearward, the front wheel is not pushed directly into the joint portion 37 or is hardly pushed. That is, the front wheel does not or does not act directly on the joint 37. Accordingly, since the joint portion 37 is not greatly deformed or broken, or is difficult to occur, a large open state of the passenger compartment 3 starting from the joint portion 37 does not occur or hardly occurs.

Further, in the embodiment shown in FIG. 11 (A), the inner side panel 332 and the outer side panel 341 extend away from each other toward the front of the vehicle body 1, so that FIG. 4 (C) and FIG. Compared to the illustrated embodiment, the A pillar 17 can receive a larger range of stress.
Specifically, the part capable of receiving stress as the A pillar 17 needs to have a certain volume inside. In the embodiment shown in FIG. 4C and FIG. 5, the range in which the stress can be received as the A pillar 17 is the second extension that does not include the first extension portion 39, the second extension portion 40, and the overlapping portion 431. This is an area surrounded by the bent portion 41. The area in the vicinity of the overlapping portion 431 having a small internal space exhibits a function of distributing stress to peripheral members such as the toe board panel 13 through the A pillar 17 and the overhanging portion 381 and the joint portion 37 when stress is received. .
On the other hand, in the embodiment shown in FIG. 11A, the range where the stress can be received as the A pillar 17 is the second bent portion including the curved portion 44, the second extending portion 41, and the overlapping portion 432. 41 is an area surrounded by 41. By providing the curved portion 44, the distance between the inner side panel 332 and the outer side panel 341 in the overlapping portion 432 is larger than that in the embodiment shown in FIGS. Therefore, the embodiment shown in FIG. 11A can receive stress in the entire A pillar 17 having high rigidity even if, for example, the dropped front wheel is pushed in the vicinity of the joint portion 37, particularly in the overlapping portion 432. .
In addition, in the case where the dropped front wheel skeleton member is pushed in with a large stress that greatly deforms, according to the embodiment shown in FIG. 11A, only the outer side panel 341 may remain deformed. Therefore, it is preferable. That is, in this embodiment, the distance between the inner side panel 332 and the outer side panel 341 is larger in the front than in the embodiment shown in FIGS. As a result, a collision mode in which the front wheel to be pushed comes into contact with the outer side panel 341 and the outer side panel 341 is pushed in while being deformed and pushed into the inner side panel 332 is also shown in FIGS. Compared to the embodiment shown in FIG. Therefore, it is preferable that only the outside of the A pillar 17 is deformed and the sealed box shape of the passenger compartment 3 is easily maintained.
In FIG. 11A, only the left overhanging portion 382 of the vehicle body 1 is shown, but a similar overhanging portion 382 can be attached on the right side. That is, the overhang portion 382 is a pair of portions provided on the left and right sides.

FIG. 11B shows an embodiment in which an overhang portion 383 is provided.
Specifically, the difference between the overhang portion 383 shown in FIG. 11B and the overhang portion 381 shown in FIGS. 4C and 5 is the position of the joint portion 37.
The overhanging portion 383 is formed by enlarging the overlapping portion 431 of the overhanging portion 381 on the inner side in the width direction of the vehicle body 1. In order to enlarge the overhanging portion 383, the first extending portion 403 of the inner side panel 333 and the second extending portion 423 of the outer side panel 343 may be extended inward in the width direction of the vehicle body 1. When the overlapping portion 433 is enlarged and the overhanging portion 383 is extended until the size of the overlapping portion 433 is equal to the distance in the left-right direction from the conventional A pillar 17 to the front side member 14, the joint portion 37 is moved to the front. It is formed in the vicinity of the side member 14. As a result, the overhang portion 383 is disposed in a region where the toe board panel 13 is conventionally provided from the front side member 14 to the A pillar 17. The overlapping portion 433 is a portion where the second bent portion 423 of the outer side panel 343 overlaps the inner side panel 333 when the vehicle body 1 is viewed from the front.

  The embodiment shown in FIG. 11B is similar to the embodiment shown in FIGS. 4C and 5 when the front wheels (not shown in FIG. 11B) are projected rearward. In the width direction of 1, the joint portion 37 is located inside the inner surface of the front wheel.

  In the embodiment shown in FIG. 11B, since the overhang portion 383 is provided, the position of the joint portion 37 is more inside than in the conventional case in the width direction of the vehicle body 1. Thereby, for example, even when the dropped front wheel is pushed rearward, the front wheel is not pushed directly into the joint portion 37 or is hardly pushed. That is, the front wheel does not or does not act directly on the joint 37. Accordingly, since the joint portion 37 is not greatly deformed or broken, or is difficult to occur, a large open state of the passenger compartment 3 starting from the joint portion 37 does not occur or hardly occurs.

Further, in the embodiment shown in FIG. 11 (B), the joint portion 37 is arranged on the inner side in the width direction of the vehicle body 1 as compared with the embodiment shown in FIGS. 4 (C) and 5. Thereby, for example, even if the dropped front wheel is pushed further inward than the collision mode shown in FIG. 10, it is preferable because the front wheel does not directly contact or hardly contacts the joint portion 37. Therefore, the sealed box shape of the passenger compartment 3 is easily maintained.
In FIG. 11B, only the left overhanging portion 383 of the vehicle body 1 is shown, but a similar overhanging portion 383 can be attached to the right side. That is, the overhang portion 383 is a pair of portions provided on the left and right sides.

FIG. 11C shows an embodiment in which an overhang portion 384 is provided.
Specifically, the difference between the overhang portion 384 shown in FIG. 11C and the overhang portion 381 shown in FIGS. 4C and 5 is the shape of the A pillar, that is, the side panel portion. .
The A pillar 17 is formed as a hollow square member extending substantially in the vertical direction by joining the inner side panel 331 and the outer side panel 341 at the outer flange portion 32. On the other hand, in the embodiment shown in FIG. 11C, the A pillar 174 is formed of a single steel plate. Further, the A pillar 174 does not have a joint portion between the inner side panel 331 and the outer side panel 341 in the front thereof.
The front end surface of the A pillar 174 that is substantially parallel to the width direction of the vehicle body 1 protrudes forward, so that the entire front end surface is formed as an outer flange portion 324. The protruding distance of the outer flange portion 324 may be equal to the protruding distance of the outer flange portion 32 of the A pillar 17 to the front and the protruding distance of the inner flange portion 31 of the toe board panel 13 to the front.
Further, in the width direction of the vehicle body 1, the A pillar 174 protrudes also inward. The overhanging portion 384 is formed by the outer flange portion 324 that is the front end portion of the A pillar 174 projecting inward in the width direction.
The A pillar 174 having such a shape can be formed, for example, by press working or the like frequently used for sheet metal in the process of manufacturing vehicle components.
In the present embodiment, the joint portion 374 is formed by joining the inner flange portion 31 of the toe board panel 13 to the overhang portion 384 of the A pillar 174. The inner flange portion 31 is joined to the inner side surface in the width direction of the A pillar 174 by welding or the like.

  The A pillar 174 has an overhanging portion 384 that projects toward the inner side in the width direction of the vehicle body 1. Therefore, in the width direction of the vehicle body 1, the A pillar 174 extends so that the inner surface IS and the outer surface OS are separated from each other toward the front of the vehicle body 1.

  The embodiment shown in FIG. 11C is similar to the embodiment shown in FIGS. 4C and 5 when the front wheels (not shown in FIG. 11C) are projected rearward. In the width direction of 1, the joint portion 374 is located inside the inner side surface of the front wheel.

  In the embodiment shown in FIG. 11C, since the overhang portion 384 is provided, the position of the joint portion 374 is on the inner side in the width direction of the vehicle body 1 than in the prior art. Thereby, for example, even when the dropped front wheel is pushed rearward, the front wheel is not pushed directly into the joint portion 374 or is hardly pushed. That is, the front wheel does not or does not easily apply stress directly to the joint portion 374. Therefore, since the joint portion 374 is not greatly deformed or broken, or is difficult to occur, a large open state of the passenger compartment 3 starting from the joint portion 374 does not occur or hardly occurs.

Furthermore, the embodiment shown in FIG. 11C is shown in FIGS. 4C and 5 because the inner side surface IS and the outer side surface OS extend away from each other toward the front of the vehicle body 1. Compared to the embodiment, the A pillar 174 has a larger range capable of receiving stress.
Specifically, the part capable of receiving stress as the A pillar 174 needs to have a certain volume inside. In the embodiment shown in FIG. 11C, the range in which stress can be received as the A pillar 174 is a region surrounded by the outer flange portion 324 that is the front end portion, the inner side surface IS, and the outer side surface OS. That is, the range in which the A pillar 174 can receive stress is the entire A pillar 174. Therefore, the embodiment shown in FIG. 11C can receive stress in the entire A pillar 174 having high rigidity even when the dropped front wheel is pushed in the vicinity of the joint portion 374, for example.
Further, in the case where the dropped front wheel skeleton member is pushed in with a large stress that greatly deforms, according to the embodiment shown in FIG. 11C, there is a possibility that only the outer surface OS is deformed. ,preferable. That is, in the present embodiment, the distance between the inner surface IS and the outer surface OS is larger in the front than in the embodiment shown in FIGS. 4 (C) and FIG. 5 show a collision mode in which the front wheel to be pushed comes into contact with the outer surface OS, the outer surface OS is pushed in while being deformed, and is pushed into the inner surface IS. It is hard to occur compared with the embodiment. Therefore, it is preferable that only the outside of the A pillar 174 is deformed and the sealed box shape of the passenger compartment 3 is easily maintained.
The joint portion 374 is formed by joining the inner flange portion 31 and a part of the inner side surface IS of the A pillar 174 in the width direction of the vehicle body 1. In the said embodiment, the junction part 37 protrudes ahead, and the edge part of each member which protrudes is joined. On the other hand, in the present embodiment, the joint portion 374 does not have a joint portion exposed forward. Therefore, even if the front surface of the A pillar 174 is deformed, the joint 374 is hardly affected.
In FIG. 11C, only the left overhanging portion 384 of the vehicle body 1 is shown, but a similar overhanging portion 384 can be attached to the right side. That is, the overhang portions 384 are a pair of portions provided on the left and right sides.

Each embodiment described above is an example in which the present invention is applied to a vehicle body 1 of a three-box structure automobile.
In addition, for example, the present invention can be applied to vehicles such as a one-box structure automobile, a two-box structure automobile, a truck, a bus, a train, and an aircraft. In particular, the present invention can be suitably applied to a vehicle manufactured by joining a pair of side structures 7 on both sides in the width direction of the center structure 6 of the vehicle body 1.

  As mentioned above, although embodiment which applied the invention made | formed by this inventor was described, this invention is not limited by the description and drawing which make a part of indication of this invention by this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

1: body, 2: front compartment, 3: passenger compartment, 4: rear compartment, 6: center structure, 7: side structure, 11: floor panel, 12: floor cross member, 13: toe board panel (partition panel), 14 : Front side member, 15: Side sill (side panel part), 16: Torque box, 17, 171, 174: A pillar (side panel part), 18: Front upper member, 19: Stiffening member, 20: Radiator frame, 21: Front bumper beam, 22: B pillar, 23: C pillar, 24: Roof side rail, 25: Roof cross member, 26: Rear bulkhead panel, 27: Dash panel, 31: Inner flange, 32, 324: Outer flange part, 331, 332, 333: inner side panel, 341, 343: outer side panel , 35: first outer flange portion, 36: second outer flange portion, 37, 374: joint portion, 38, 381, 382, 383, 384: overhang portion, 51: first automobile, 52: second automobile, E1, E2: Electrode, FT: Front wheel, C: Notch, IS: Inner side, OS: Outer side

Claims (8)

A partition panel extending in the width direction in a vehicle body capable of supporting the wheels of the vehicle and partitioning the front or rear chamber of the vehicle body and the passenger compartment;
A side panel portion joined to the partition panel at a position that is a front angle or a rear angle of the passenger compartment in a side portion of the vehicle body,
The side panel portion has an outer flange portion extending in the vertical direction of the vehicle body,
The partition panel has an inner flange portion extending in the vertical direction,
The side panel portion has an overhanging portion projecting inward in the width direction,
The outer flange portion is formed at an inner end portion of the overhang portion,
Having a joint part formed by joining the inner flange part and the outer flange part;
Vehicle body structure. The projecting portion is formed by bending or curving a part of the side panel portion on the front chamber side or a part on the rear chamber side inward in the width direction.
The vehicle body structure according to claim 1. The side panel portion includes an inner side panel provided on the inner side in the width direction, and an outer side panel provided on the outer side in the width direction,
The inner side panel and the outer side panel extend in parallel or substantially in parallel in the front-rear direction of the vehicle body,
The overhang portion is formed by bending or curving the inner side panel and the outer side panel inward in the width direction.
The vehicle body structure according to claim 1 or 2. The side panel portion includes an inner side panel provided on the inner side in the width direction, and an outer side panel provided on the outer side in the width direction,
The inner side panel and the outer side panel extend away from each other toward the front or rear of the vehicle body,
The overhanging portion is configured such that when the side panel portion is viewed from the front or rear, a part of the outer side panel on the front chamber side or a part of the rear chamber side overlaps the inner side panel. The outer side panel is formed by extending inward in the width direction.
The vehicle body structure according to claim 1 or 2. In the width direction,
The joint is located inside the inner surface of the wheel;
The vehicle body structure according to any one of claims 1 to 4. In the vertical direction,
The joint is located in the front-rear direction of the wheel;
The vehicle body structure according to any one of claims 1 to 5. In the vertical direction,
The joint is located in the front-rear direction at least about the center of rotation of the wheel;
The vehicle body structure according to any one of claims 1 to 5. A vehicle body manufacturing method capable of pivoting a vehicle wheel,
An inner flange portion formed so as to protrude in the front-rear direction at an end portion in the width direction of the vehicle body in a partition panel that partitions the front chamber or the rear chamber of the vehicle body and the passenger compartment;
In the side panel portion that defines the passenger compartment by being joined to the partition panel, an outer flange portion that is formed at a portion corresponding to the front or rear corner of the passenger compartment,
Joining on the inner side in the width direction from the surface of the outer flange portion on the passenger compartment side,
A method for manufacturing a car body.

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