JP6623093B2 - Body side structure - Google Patents

Description

  The present invention relates to a side part structure of a vehicle body.

A vehicle body of a vehicle such as an automobile has a passenger compartment in which an occupant gets on and sits on a seat. In the passenger compartment, an entrance for getting on and off the passenger is formed.
For example, when another vehicle body collides with such an entrance / exit, since a large opening is formed by the entrance / exit, it is difficult to absorb the impact load with the basic structure of the vehicle body.
Therefore, in Patent Document 1, a door beam is provided in a door that can be opened and closed with respect to the entrance. This makes it difficult for another vehicle body to enter the passenger compartment from the entrance / exit.

JP 2012-206619 A

However, the door beam as in Patent Document 1 simply extends along the front-rear direction in the door.
For this reason, when the door is deformed, the door beam is, at best, the outer side of the front pillar whose both ends are provided, for example, along the front edge of the entrance and the center pillar vertically installed at the center of the entrance. It just hits. As a result, when the other vehicle body hits strongly from the side, the door beam may be bent and the other vehicle body may enter the passenger compartment from the entrance / exit.
Further, when the length of the door beam is shorter than the distance from the front pillar to the center pillar, the door beam cannot perform such a function.

  As described above, the vehicle is required to improve the impact absorption performance in the side collision.

  A side part structure of a vehicle body according to the present invention includes a vehicle body in which an entrance / exit of a passenger compartment is formed between a front pillar and a rear pillar, and the entrance / exit is divided forward and backward by a center pillar, the front pillar, and the center A front door that can be opened and closed between the pillars, a rear door that can be opened and closed between the center pillar and the rear pillar, and a front door beam extending in the front-rear direction in the front door, A front door beam provided so that the rear end of the center pillar side is located outside the front end of the front pillar side in the vehicle width direction, and the front door or the front pillar is provided with the front end of the front door beam aligned with the height position. And the front door beam and the height position in the rear door are aligned. A rear door beam extending along the front-rear direction, the rear door beam provided such that the front end on the center pillar side is positioned on the outer side in the vehicle width direction from the rear end on the rear pillar side, and the rear door or the rear pillar A rear receiving portion provided at the same height as the front end of the rear door beam, and when the front door and the rear door collide with a structure such as another vehicle body from the side, the front door beam And the rear door beam is connected to each other outside the center pillar or sandwiching the center pillar, and supported by the front pillar and the rear pillar via the front receiving portion and the rear receiving portion, An arch shape that protrudes outward in the vehicle width direction between the front pillar and the rear pillar. To form.

  Preferably, as the front receiving portion, a door-side front receiving portion provided in the front door with a height position aligned with the front end of the front door beam, and a height position of the front pillar aligned with the front end of the front door beam. It is preferable that the door side front receiving part and the vehicle body side front receiving part have shapes that engage with each other.

  Preferably, as the rear receiving portion, a door-side rear receiving portion provided in the rear door with a height position aligned with the front end of the rear door beam, and a rear pillar provided with a height position aligned with the front end of the rear door beam. The door side rear receiving part and the vehicle body side rear receiving part preferably have shapes that engage with each other.

  Preferably, the front transmission member extends in the front-rear direction with the front receiving portion aligned with the front position in the front pillar, and is provided so that the rear end is positioned on the outer side in the vehicle width direction from the front end And a rear transmission member that extends along the front-rear direction with the rear receiving portion aligned with the height of the rear receiving portion in the rear pillar, the front end being positioned on the outer side in the vehicle width direction from the rear end. And a rear transmission member provided.

  Preferably, the high-rigidity member constituting the vehicle body is provided between the high-rigidity member and the front pillar or the rear pillar so that the height position of the high-rigidity member is aligned with that of the front transmission member or the rear transmission member in the vehicle body. And a load transmitting member to be provided.

In the present invention, the front door beam is provided so that the rear end of the center pillar side is positioned on the outer side in the vehicle width direction from the front end of the front pillar side, and the rear door beam is aligned with the height of the front door beam on the center pillar side. The front end is provided so as to be positioned on the outer side in the vehicle width direction from the rear end on the rear pillar side, and when a structure such as another vehicle body collides with the front door and the rear door from the side, the front door beam and the rear door beam are They are connected to each other outside the center pillar or with the center pillar in between, and supported by the front pillar and the rear pillar via the front receiving part and the rear receiving part, and are outside the vehicle width direction between the front pillar and the rear pillar. An arch shape that is convex toward the direction is formed.
In such a state that is supported by the front pillar and the rear pillar, an arch-shaped shock absorbing structure that protrudes outward in the vehicle width direction is formed between the front pillar and the rear pillar, thereby to the entrance / exit. When a structure such as another vehicle body collides from the side toward the side, the impact can be absorbed by an outwardly convex arch-shaped shock absorbing structure.
Further, a part of the impact can be transmitted to the front pillar and the rear pillar via the front receiving part and the rear receiving part, and transmitted from the front pillar and the rear pillar to the vehicle body.
As a result, it is possible to suppress the deformation of the vehicle body at the entrance and exit, and to obtain a high shock absorbing performance as compared with the case where the both ends of the door beam simply hit the outside of the front pillar and the outside of the center pillar. Before a structure such as another vehicle body enters the passenger compartment, the energy of the structure can be absorbed and safety can be improved.

FIG. 1 is a schematic view illustrating a side surface of a vehicle body of an automobile according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the vehicle body of FIG. FIG. 3 is a schematic view of a longitudinal section of the vehicle body of FIG. 1 in the vehicle width direction. FIG. 4 is an explanatory view of a side part structure applied to the vehicle body of FIG. FIG. 5 is an explanatory view of the deformation operation of the door at the time of a side collision including the front door beam and the rear door beam of FIG. FIG. 6 is an explanatory diagram of the impact load of the side collision and its absorption structure. FIG. 7 is an explanatory diagram of a side structure according to the first modification. FIG. 8 is an explanatory diagram of a side structure according to the second modification. FIG. 9 is an explanatory diagram of a side structure according to a third modification.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic view illustrating a side surface of a vehicle body 2 of an automobile 1 according to an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of the vehicle body 2 of the automobile 1 shown in FIG.
FIG. 3 is a schematic diagram of a longitudinal section in the vehicle width direction of the automobile 1 of FIG.

A vehicle body 2 shown in FIGS. 1 to 3 includes a passenger compartment 4 in which a seat 6 on which an occupant is seated, a front chamber 3 located on the front side of the occupant room 4, a rear chamber 5 located on the rear side of the occupant room 4, Have
A floor panel 11 is provided on the lower surface of the passenger compartment 4. A pair of side sills 12 are provided on both sides of the floor panel 11 in the vehicle width direction.
A roof panel 13 is provided on the upper surface of the passenger compartment 4. A pair of roof rails 14 are provided on both sides of the roof panel 13 in the vehicle width direction.
The passenger compartment 4 and the front compartment 3 are partitioned by a toe board 15. The toe board 15 is erected on the front edge of the floor panel 11. A pair of front pillars 16 are provided on both sides of the toe board 15 in the vehicle width direction. The front pillar 16 extends in the vertical direction along the front corner of the passenger compartment 4 from the position of the front end of the side sill 12 toward the position of the front end of the roof rail 14. The front pillar 16 may be formed by caulking the outer peripheral edges of the inner panel 16A and the outer panel 16B in a hollow state. In front of the toe board 15, a pair of front side frames 31 extends in the front chamber 3.
The passenger compartment 4 and the rear compartment 5 are partitioned by a rear panel 17. The rear panel 17 is erected on the rear edge of the floor panel 11. A pair of rear pillars 18 are provided on both sides of the rear panel 17 in the vehicle width direction. The rear pillar 18 extends in the vertical direction along the rear corner of the passenger compartment 4 from the position of the rear end of the side sill 12 toward the position of the rear end of the roof rail 14. The rear pillar 18 may be formed by caulking the outer peripheral edges of the inner panel 18A and the outer panel 18B in a hollow state. After the rear panel 17, a pair of rear side frames 32 extend in the rear chamber 5.
A pair of entrances 19 are provided on the left and right side surfaces of the passenger compartment 4. The entrance / exit 19 is surrounded by the side sill 12, the front pillar 16, the rear pillar 18, and the roof rail 14.
A center pillar 20 is provided between the center portion of the side sill 12 and the center portion of the roof rail 14. The entrance / exit 19 is divided forward and backward by the center pillar 20. The center pillar 20 may be formed by caulking the outer peripheral edges of the inner panel 20A and the outer panel 20B in a hollow state.
The entrance / exit 19 is provided with a front door 21 that can be opened and closed between the front pillar 16 and the center pillar 20 and a rear door 22 that can be opened and closed between the center pillar 20 and the rear pillar 18.
The front door 21 may be formed by caulking the outer peripheral edges of the inner panel 21A and the outer panel 21B in a hollow state. The front edge of the front door 21 is rotatably attached to the outer surface of the front pillar 16 by a hinge member. A lock mechanism for locking to the center pillar 20 is provided at the rear edge of the front door 21. When the front door 21 is closed, the outer peripheral edge thereof overlaps with the front pillar 16, the roof rail 14, the center pillar 20, and the side sill 12.
The rear door 22 may be formed by caulking the outer peripheral edges of the inner panel 22A and the outer panel 22B in a hollow state. The front edge of the rear door 22 is rotatably attached to the outer surface of the center pillar 20 by a hinge member. A locking mechanism for locking the rear pillar 18 is provided at the rear edge of the rear door 22. When the front door 21 is closed, the outer peripheral edge thereof overlaps with the center pillar 20, the roof rail 14, the rear pillar 18, and the side sill 12.

By the way, in such a vehicle body 2, it is possible that another vehicle body collides with the passenger compartment 4 from the side of the vehicle body 2, for example. Since large openings by the entrance / exit 19 are formed on both sides in the vehicle width direction of the passenger compartment 4, it is difficult to absorb the impact load with the basic structure of the vehicle body 2.
Therefore, for example, as shown in FIG. 1, a front door beam 23 and a rear door beam 24 that extend along the front-rear direction are provided for the front door 21 and the rear door 22 that can be opened and closed with respect to the entrance 19. Can be considered.
However, when a door beam extending in the front-rear direction is provided in the door, the front end and the rear end of the door beam hit the outside of the pillar at best. And although the door beam is being fixed with respect to the door, it is not being fixed with respect to the pillar itself. And when another vehicle body hits strongly from the side, a door beam will bend and a door beam may be pushed in into the passenger compartment 4 from the entrance / exit 19 with the door to deform | transform.
Further, unlike FIG. 1, when the length of the door beam is shorter than the interval between the pillars, the end of the door beam cannot be expected to hit the outside of the pillar.
As described above, the vehicle is required to improve the impact absorption performance in the side collision.

  FIG. 4 is an explanatory view of a side part structure applied to the vehicle body 2 of FIG.

As shown in FIG. 4, a front door beam 23 is provided in the front door 21, and a rear door beam 24 is provided in the rear door 22.
The front door beam 23 and the rear door beam 24 are formed, for example, from a highly rigid metal in a bar shape. As shown in FIG. 1, the front door beam 23 and the rear door beam 24 are arranged in a straight line at the height positions of the bumpers of other vehicle bodies with their height positions aligned.
The front door beam 23 has a length from the rear surface of the front pillar 16 to a position overlapping the outer surface of the center pillar 20. The front end of the front door beam 23 is provided near the inner panel 21 </ b> A of the front door 21, and the rear end is provided near the outer panel 21 </ b> B of the front door 21. As a result, the front door beam 23 has the rear end on the center pillar 20 side positioned on the outer side in the vehicle width direction from the front end on the front pillar 16 side.
The rear door beam 24 has a length from a position overlapping the outer surface of the center pillar 20 to the front surface of the rear pillar 18. The front end of the rear door beam 24 is provided near the outer panel 22 </ b> B of the rear door 22, and the rear end is provided near the inner panel 22 </ b> A of the rear door 22. As a result, the rear door beam 24 has a front end on the side of the center pillar 20 located outside the rear end on the side of the rear pillar 18 in the vehicle width direction.
Further, as shown in FIG. 5 to be described later, a fitting recess 25 is formed in the rear end surface of the front door beam 23 by the center portion thereof being punched out. A front end portion of the rear door beam 24 is formed in a conical shape and a fitting convex portion 26 is formed.

Further, the front door 21 is provided with a door-side front receiving portion 33 with the front end of the front door beam 23 aligned with the height position. The front pillar 16 is provided with a vehicle body-side front receiving portion 34 that is aligned with the front end of the front door beam 23. The door-side front receiving portion 33 and the vehicle body-side front receiving portion 34 are made of steel plates bent in an L shape, and have shapes that engage with each other by overlapping each other.
Further, a front transmission member 35 is provided in the front pillar 16 so as to be aligned with the vehicle body side front receiving portion 34. The front transmission member 35 extends in the front-rear direction in the front pillar 16 and is provided so that the rear end is located on the outer side in the vehicle width direction from the front end.

Further, the rear door 22 is provided with a door-side rear receiving portion 36 that is aligned with the rear end of the rear door beam 24 in the height position. The rear pillar 18 is provided with a vehicle body side rear receiving portion 37 with the front end of the rear door beam 24 and the height position aligned. The door-side rear receiving portion 36 and the vehicle body-side rear receiving portion 37 are made of steel plates bent in an L shape, and have shapes that engage with each other by overlapping each other.
A rear transmission member 38 is provided in the rear pillar 18 so as to be aligned with the vehicle body side rear receiving portion 37. The rear transmission member 38 extends along the front-rear direction in the rear pillar 18 and is provided so that the front end is positioned on the outer side in the vehicle width direction from the rear end.

FIG. 5 is an explanatory view of the deformation operation of the door at the time of a side collision including the front door beam 23 and the rear door beam 24 of FIG.
In FIG. 5, the peripheral part of the front pillar 16 is illustrated on the left side, and the peripheral part of the center pillar 20 is illustrated on the right side.

  As shown in FIG. 5A, the closed front door 21 and rear door 22 are not deformed before the collision. In this case, the front door beam 23 and the rear door beam 24 are at predetermined positions inside the front door 21 and the rear door 22. That is, the rear end of the front door beam 23 and the front end of the rear door beam 24 are located outside the center pillar 20. Further, the fitting concave portion 25 of the front door beam 23 and the fitting convex portion 26 of the rear door beam 24 are separated in the front-rear direction.

As shown in FIG. 5B, when the collision to the side surface starts, the closed front door 21 and rear door 22 start to be deformed by a load that a structure such as another vehicle body enters inward from the side surface.
First, the outer panel 21 </ b> B of the closed front door 21 and the outer panel 22 </ b> B of the rear door 22 are deformed inward in the vehicle width direction and contact the rear end of the front door beam 23 and the front end of the rear door beam 24. Furthermore, when another vehicle body enters, the rear end of the front door beam 23 and the front end of the rear door beam 24 start to be deformed inward in the vehicle width direction together with the outer panels 21B and 22B. Then, as shown in FIG. 5C, the fitting convex portion 26 at the front end of the rear door beam 24 breaks through the front surface of the rear door 22 and protrudes from the rear door 22 to the front outside. Depending on the situation of the collision, the rear end of the front door beam 23 also breaks through the rear surface of the front door 21 and protrudes rearward and outward from the front door 21.

When another vehicle body enters further, as shown in FIG. 5D, the fitting convex portion 26 at the front end of the rear door beam 24 penetrates the rear surface of the front door 21 and enters the front door 21, and the front door beam 23. It enters into the fitting recess 25 at the rear end. When the other vehicle body greatly enters in this way, the front door beam 23 and the rear door beam 24 are connected to each other at a position separated outside the center pillar 20.
As described above, the front door beam 23 and the rear door beam 24 provided inside the front door 21 and the rear door 22 are deformed inward in the vehicle width direction due to a collision load caused by the entry of another vehicle body. 21 and the rear door 22 are connected to each other at positions away from the center pillar 20 to form an arch-shaped skeleton that protrudes outward in the vehicle width direction between the front pillar 16 and the rear pillar 18. .

  Therefore, the front door beam 23 and the rear door beam 24 that are connected to each other are pushed inward in the vehicle width direction while being connected to each other by further entering another vehicle body, and the rear surface of the front pillar 16 and the rear pillar 18 are connected. It is in a state of being supported by being sandwiched from both sides between the front surface of the two. As shown in FIG. 5D, the front door beam 23 and the rear door beam 24 are spaced apart from the center pillar 20 while being sandwiched and supported between the front pillar 16 and the rear pillar 18. Yes.

  Further, as shown in FIG. 5C, the front door beam 23 is pushed forward little by little by being pushed inward in the vehicle width direction while being connected to the rear door beam 24. As a result, as shown in FIG. 5D, the front end of the front door beam 23 is in pressure contact with the door side front receiving portion 33, and the door side front receiving portion 33 is in pressure contact with the vehicle body side front receiving portion 34.

  Similarly, the rear door beam 24 is pushed backward little by little by being pushed inward in the vehicle width direction while being connected to the front door beam 23. As a result, the front end of the rear door beam 24 is brought into pressure contact with the door side rear receiving portion 36, and the door side rear receiving portion 36 is further brought into pressure contact with the vehicle body side rear receiving portion 37.

  Therefore, the arch-shaped skeleton structure that protrudes outward in the vehicle width direction fits between the front pillar 16 and the rear pillar 18.

  FIG. 6 is an explanatory diagram of the impact load of the side collision and its absorption structure.

As shown in FIG. 6, the front door beam 23 and the rear door beam 24 are sandwiched between the front pillar 16 and the rear pillar 18 so as to be connected to each other at a position distant from the center pillar 20, and are outside in the vehicle width direction. An arch-shaped skeletal structure that protrudes in the direction is formed.
The front pillar 16 that supports the convex arch-shaped skeleton structure is provided with a front transmission member 35 such that the rear end thereof is positioned on the outer side in the vehicle width direction from the front end. The rear pillar 18 is provided with a rear transmission member 38 such that the front end thereof is positioned on the outer side in the vehicle width direction from the rear end.
For this reason, the collision load of another vehicle body that collides with the vehicle body 2 from the side first acts on this arch-shaped load receiving structure before acting on the center pillar 20. A part of the collision load acts on the front pillar 16 and the rear pillar 18 of the vehicle body 2 through the arch-shaped skeleton structure having an outer convex shape. The force acting on the front pillar 16 and the rear pillar 18 is transmitted to the highly rigid member of the vehicle body 2 through the front transmission member 35 or the rear transmission member 38. Therefore, a part of the collision load of the side collision can be released to the vehicle body 2 through the front pillar 16 and the rear pillar 18 and absorbed thereby. For example, the vehicle body 2 can escape to highly rigid members such as the toe board 15, the front side frame 31, the rear panel 17, and the rear side frame 32. Accordingly, the front pillar 16, the center pillar 20, and the rear pillar 18 are not easily deformed.

As described above, in the present embodiment, the front door beam 23 is provided such that the rear end on the center pillar 20 side is positioned on the outer side in the vehicle width direction from the front end on the front pillar 16 side, and the rear door beam 24 is provided on the front door beam 23. The front end of the center pillar 20 side is positioned so as to be positioned on the outer side in the vehicle width direction from the rear end of the rear pillar 18 side, and other vehicle bodies or the like from the side with respect to the front door 21 and the rear door 22 are provided. When the structure collides, the front door beam 23 and the rear door beam 24 are connected to each other outside the center pillar 20 or sandwiching the center pillar 20 therebetween, and the front receiving portions 33, 34 and the rear receiving portions 36, 37 is supported by the front pillar 16 and the rear pillar 18 through the front pillar 16 and the rear pillar 18. Toward the vehicle width direction outwardly between forming an arch shape which is convex.
By forming an arch-shaped shock absorbing structure that protrudes outward in the vehicle width direction between the front pillar 16 and the rear pillar 18 while being supported by the front pillar 16 and the rear pillar 18 in this manner. When a structure such as another vehicle body collides from the side toward the entrance 19, the impact can be absorbed by an outwardly projecting arch-shaped impact absorbing structure.
Further, part of the impact can be transmitted to the front pillar 16 and the rear pillar 18 via the front receiving portions 33 and 34 and the rear receiving portions 36 and 37, and can be transmitted from the front pillar 16 and the rear pillar 18 to the vehicle body 2.
As a result, deformation of the vehicle body 2 at the entrance / exit 19 can be suppressed, and a higher shock absorbing performance can be obtained as compared with the case where both ends of the door beam simply hit the outside of the front pillar 16 and the outside of the center pillar 20. Before a structure such as another vehicle body enters the passenger compartment 4, the energy of the structure can be absorbed, and safety can be improved.

  Further, in the present embodiment, as the front receiving portion, the door-side front receiving portion 33 provided with the front door 21 aligned with the front end of the front door beam 23 at the front door 21, and the front pillar 16 at the front end and the height of the front door beam 23. The vehicle body side front receiving portion 34 is provided with the same position, and the door side front receiving portion 33 and the vehicle body side front receiving portion 34 have shapes that engage each other. Therefore, the load acting on the front door beam 23 can be suitably transmitted to the front pillar 16 through the door-side front receiving portion 33 and the vehicle body-side front receiving portion 34 that are engaged with each other.

  Further, in the present embodiment, as the rear receiving portion, the door side rear receiving portion 36 provided in the rear door 22 with the front end of the rear door beam 24 being aligned with the height position, and the front end and the height position of the rear door beam 24 in the rear pillar 18 are set. The door-side rear receiving part 36 and the vehicle-body side rear receiving part 37 have shapes that engage with each other. Therefore, the load acting on the rear door beam 24 can be suitably transmitted to the rear pillar 18 through the door side rear receiving portion 36 and the vehicle body side rear receiving portion 37 engaged with each other.

Further, in this embodiment, the front transmission member 35 extends in the front-rear direction with the front receiving portion 16 and the height position aligned in the front pillar 16, and the rear end is located outside the front end in the vehicle width direction. A front transmission member 35 provided so as to be provided is provided. Therefore, the front pillar 16 can transmit the load input through the front door beam 23 to the vehicle body 2 through the front pillar 16.
A rear transmission member 38 is provided in the rear pillar 18 so as to be aligned with the rear receiving portion in the front-rear direction so that the rear end thereof is positioned outside the front end in the vehicle width direction. A transmission member 38 is provided. Therefore, the rear pillar 18 can transmit the load input through the rear door beam 24 to the vehicle body 2 through the rear pillar 18.

  Although the above embodiment is an example of an embodiment suitable for the present invention, the present invention is not limited to this, and various modifications or changes can be made without departing from the scope of the invention.

  FIG. 7 is an explanatory diagram of a side structure according to the first modification.

In FIG. 7, the front side frame 31 is displaced inward in the vehicle width direction from the front pillar 16 and coupled to the toe board 15, and the rear side frame 32 is displaced inward in the vehicle width direction from the rear pillar 18 and coupled to the rear panel 17. Yes.
In this case, the load transmission member 39 may be provided between the high rigidity member of the vehicle body 2 such as the front side frame 31 and the front pillar 16 and between the rear side frame 32 and the rear pillar 18. The load transmission member 39 may be provided, for example, at the same height as the front transmission member 35 or the rear transmission member 38. Thereby, a load acting on the front pillar 16 or the rear pillar 18 can be released to the front side frame 31 or the rear side frame 32 through the load transmission member 39.

  FIG. 8 is an explanatory diagram of a side structure according to the second modification.

In FIG. 8, the toe board 15 is separated from the front pillar 16 to the front, and the rear panel 17 is separated from the rear pillar 18 to the rear.
In this case, a load transmission member 39 may be provided between the toe board 15 and the front pillar 16 and between the rear panel 17 and the rear pillar 18. The load transmission member 39 may be provided, for example, at the same height as the front transmission member 35 or the rear transmission member 38. Thereby, the load acting on the front pillar 16 or the rear pillar 18 can be released to the toe board 15 or the rear panel 17 through the load transmission member 39.

  FIG. 9 is an explanatory diagram of a side structure according to a third modification.

In FIG. 9, the front door beam 23 and the rear door beam 24 have main beam portions 23A and 23A and bent portions 23B and 24B. A center connecting member 27 is provided in the center pillar 20.
Even in this case, when the collision from the side starts, the front door beam 23 and the rear door beam 24 are deformed inward in the vehicle width direction, and the rear end of the bent portion 23B of the front door beam 23 and the bent portion 24B of the rear door beam 24 are deformed. The front end sandwiches the center connecting member 27 of the center pillar 20 from the front and rear. Thereby, the front door beam 23 and the rear door beam 24 are connected to each other via the center connecting member 27. Further, the front door beam 23 forms an arch shape that protrudes outward in the vehicle width direction between the front pillar 16 and the center pillar 20, and the rear door beam 24 is formed between the rear pillar 18 and the center pillar 20. An arch shape that is convex outward in the vehicle width direction is formed. In combination with the curved shape of the center pillar 20, an outwardly convex cross arch shape can be formed.

1 ... Automobile (vehicle)
2 ... Vehicle body 3 ... Front room 4 ... Passenger room 5 ... Rear room 6 ... Seat 11 ... Floor panel 12 ... Side sill 13 ... Roof panel 14 ... Roof rail 15 ... Toe board 16 ... Front pillar 16A ... Inner panel 16B ... Outer panel 17 ... Rear panel 18A ... inner panel 18B ... outer panel 18 ... rear pillar 19 ... entrance / exit 20 ... center pillar 20A ... inner panel 20B ... outer panel 21 ... front door 21A ... inner panel 21B ... outer panel 22 ... rear door 22A ... inner panel 22B ... outer panel 23 ... front door beam 23A ... main beam part 23B ... bent part 24 ... rear door beam 24A ... main beam part 24B ... bent part 25 ... fitting recess (fitting part)
26 ... fitting convex part (fitting part)
27 ... Center connecting member 28 ... Elastic member 31 ... Front side frame (high rigidity member)
32 ... Rear side frame (high rigidity member)
33 ... Door side front receiving part (front receiving part)
34 ... Vehicle body side front receiving part (front receiving part)
35 ... front transmission member 36 ... door side rear receiving part (rear receiving part)
37 ... Vehicle body side rear receiving part (rear receiving part)
38 ... Rear transmission member 39 ... Load transmission member

Claims (5)

A vehicle body in which an entrance / exit of a passenger compartment is formed between the front pillar and the rear pillar and the entrance / exit is divided forward and backward by a center pillar,
A front door that can be opened and closed between the front pillar and the center pillar;
A rear door that can be opened and closed between the center pillar and the rear pillar;
A front door beam extending along the front-rear direction in the front door, the front door beam provided so that the rear end of the center pillar side is located on the outer side in the vehicle width direction from the front end of the front pillar side;
A front receiving portion provided at the front door or the front pillar with the front end of the front door beam aligned with the height position;
A rear door beam that extends in the front-rear direction with the front door beam aligned with the front door beam in the rear door, the front end on the center pillar side being located on the outer side in the vehicle width direction from the rear end on the rear pillar side. A rear door beam provided in
A rear receiving portion provided in the rear door or the rear pillar with the front end of the rear door beam aligned with the height position;
Have
When a structure such as another vehicle body collides with the front door and the rear door from the side, the front door beam and the rear door beam are located outside the center pillar or with the center pillar in between. An arch that is connected and supported by the front pillar and the rear pillar via the front receiving portion and the rear receiving portion, and is convex outward in the vehicle width direction between the front pillar and the rear pillar. Forming a shape,
Side structure of the car body. As the front receiving portion, a door-side front receiving portion provided in the front door with the front end of the front door beam aligned with the height position, and a vehicle body provided in the front pillar with the front end of the front door beam aligned with the height position. Side reception part,
The door side front receiving part and the vehicle body side front receiving part have shapes that engage with each other.
The side part structure of the vehicle body according to claim 1. As the rear receiving portion, a door-side rear receiving portion provided in the rear door with the front end of the rear door beam aligned with the height position, and a vehicle body side rear provided in the rear pillar with the front end of the rear door beam aligned with the height position. A receiving part,
The door side rear receiving portion and the vehicle body side rear receiving portion have shapes that engage with each other.
The side part structure of the vehicle body according to claim 1 or 2. A front transmission member that extends in the front-rear direction with the front receiving portion aligned with a height position in the front pillar, the front transmission member being provided such that the rear end is located outside the front end in the vehicle width direction. When,
A rear transmission member that extends along the front-rear direction with the rear receiving portion aligned with the rear receiving portion in the rear pillar, the rear transmission member provided such that the front end is located on the outer side in the vehicle width direction from the rear end; ,
Having
The side part structure of the vehicle body according to any one of claims 1 to 3. A highly rigid member constituting the vehicle body;
A load transmission member provided between the high-rigidity member and the front pillar or the rear pillar, with the front transmission member or the rear transmission member aligned in a height position in the vehicle body;
Having
The side part structure of the vehicle body according to claim 4.

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