WO2020166577A1

WO2020166577A1 - Vehicle body structure

Info

Publication number: WO2020166577A1
Application number: PCT/JP2020/005227
Authority: WO
Inventors: 伸彦金光; ナッタワットスワンラーク
Original assignee: いすゞ自動車株式会社
Priority date: 2019-02-15
Filing date: 2020-02-12
Publication date: 2020-08-20
Also published as: CN113453975A; JP2020131837A

Abstract

This vehicle body structure 2 comprises a floor panel 21 which forms the floor of the vehicle, a side panel 22 which forms the side of the vehicle and which is connected at the bottom end to the side end of the floor panel 21, and a first reinforcement member 23 which includes a seat fixing part 212 for fixing a seat 4 on the top of the floor panel 21, a first region 231 disposed behind the seat fixing unit 212 and contacting the top of the floor panel 21, and a second region 232 contacting the inside surface of the side panel 22.

Description

Vehicle body structure

The present disclosure relates to a vehicle body structure.

Conventionally, the vehicle has a body structure. Patent Document 1 discloses a structure in which both left and right ends of a reinforcing member are formed to extend to the left and right sides and rise upward to be connected to the seat back sides on both the left and right sides in a vehicle. ..

JP-A-8-175436

For example, when tension is generated in the seat belt due to a front collision or a sudden stop of the vehicle, stress is generated in the area of the floor panel where the seat is fixed by the force transmitted from the seat. There are cases. In this case, there is a problem that the floor panel is deformed.

Therefore, the present disclosure has been made in view of these points, and an object thereof is to provide a vehicle body structure having a floor panel that is difficult to be deformed by a force transmitted from a seat.

In a first aspect of the present disclosure, a floor panel forming a floor of a vehicle, a side panel forming a side surface of the vehicle, and a lower end connected to a side end of the floor panel, A seat fixing portion for fixing a seat on the upper surface of the floor panel, and a first region provided on the rear side of the seat fixing portion and in contact with the upper surface of the floor panel and in contact with the inner surface of the side panel. And a first reinforcing member including a second region in which the vehicle body structure is provided.

Further, it further has a second reinforcing member fixed to the lower surface of the floor panel and extending in the front-rear direction of the vehicle, and an end portion of the first region opposite to the side panel side is The second reinforcing member may be located inward of the side panel side end of the second reinforcing member in the vehicle width direction of the vehicle.

The first reinforcing member may be provided at a position between the seat and a rear seat fixed to the rear of the seat.

According to the present disclosure, in the vehicle body structure, the floor panel is less likely to be deformed by the force transmitted from the seat.

FIG. 1 is a schematic perspective view of a vehicle provided with a body structure according to this embodiment. FIG. 2 shows the body structure as seen from below the vehicle. FIG. 3 shows a structure near the first reinforcing member.

<This Embodiment> [Peripheral Structure of Body Structure 2]
FIG. 1 is a schematic perspective view of a vehicle provided with a body structure 2 according to this embodiment. FIG. 2 is a diagram showing the body structure 2 as seen from below the vehicle. 2 is a view showing the body structure 2 as seen from below in the height direction of the vehicle in the area A in FIG.

The vehicle has a frame 1, a body structure 2, an elastic member 3, and a seat 4. The frame 1 extends in the front-rear direction of the vehicle. The frame 1 has, for example, a plurality of side members extending in the front-rear direction of the vehicle, and a plurality of cross members extending in the vehicle width direction of the vehicle between the plurality of side members. The frame 1 is provided with, for example, a body structure 2 described later and vehicle parts such as an engine and a transmission (not shown). The body structure 2 is a vehicle body provided above the frame 1 in the vehicle height direction. The body structure 2 constitutes, for example, an engine room, a vehicle compartment, and a luggage compartment. Details of the body structure 2 will be described later.

The elastic member 3 is provided between the frame 1 and the body structure 2. Specifically, the plurality of elastic members 3 are provided between each of the plurality of mount portions 211 of the floor panel 21 described later and the frame 1. The elastic member 3 is made of rubber, for example. The vehicle is provided with the elastic member 3 between the frame 1 and the body structure 2 in this manner. For example, the vibration generated in the frame 1 during traveling of the vehicle is absorbed by the elastic member 3, so that Vibration of the body structure 2 due to vibration can be suppressed.

Seat 4 is a seat on which a vehicle occupant sits. The seat 4 is fixed to a seat fixing portion 212 described later. As the seat 4, for example, a first seat 4a, a second seat 4b, and a third seat 4c are provided in order from the front to the rear in the front-rear direction of the vehicle. The seat 4 is provided with a seat belt fixing portion to which the tip of the seat belt is connected. The seat belt fixing portion includes, for example, a receiving side metal fitting into which a buckle provided at the tip of the seat belt is inserted. The seat belt is housed in, for example, a winding device provided on a side panel 22 described later.

The occupant, for example, pulls out the seat belt diagonally across the front of the occupant's body from the winding device and attaches the seat belt by connecting the buckle at the tip of the seat belt to the seat belt fixing portion. ..

[Outline of body structure 2]
The body structure 2 includes a floor panel 21, side panels 22, a first reinforcing member 23, and a second reinforcing member 24. The floor panel 21 forms the floor of the vehicle. The floor panel 21 has, for example, a plate shape. The floor panel 21 has a plurality of mount parts 211 and a seat fixing part 212. The mount part 211 is a part for connecting the frame 1 and the floor panel 21. The mount portion 211 has, for example, a hole. The hole is, for example, a hole into which a bolt is inserted.

In the floor panel 21, bolts are inserted into the holes formed in the frame 1, the holes formed in the elastic member 3, and the holes formed in the mount portion 211, and the nuts are tightened to the inserted bolts. Thus, it is fixed to the frame 1 via the elastic member 3. The side panel 22 forms a side surface of the vehicle, and a lower end thereof is connected to a side end of the floor panel 21.

The seat fixing part 212 is a part for fixing the seat 4 to the upper surface of the floor panel 21. Specifically, the seat fixing portion 212 has, for example, a hole formed in the floor panel 21. The seat fixing portion 212 is provided below the seat 4. Specifically, for example, four seat fixing portions 212 arranged in two rows in the front-rear direction of the vehicle and in two rows in the vehicle width direction of the vehicle are provided below one seat 4.

In the seat 4, bolts are inserted into holes formed in the floor panel 21 and holes formed in a seat bracket provided at the lower end of the seat 4, and nuts are tightened to the inserted bolts. Therefore, it is fixed to the floor panel 21. The seat bracket is a portion for connecting the seat 4 to the floor panel 21.

[Peripheral configuration of the first reinforcing member 23]
FIG. 3 is a diagram showing a structure near the first reinforcing member 23. Note that FIG. 3 is an enlarged view of the vicinity of the first reinforcing member 23 provided near the right end of the floor panel 21 in the vehicle width direction of the area B in the body structure 2 shown in FIG.

The first reinforcing member 23 reinforces the floor panel 21. The first reinforcing member 23 has, for example, a plate shape. The first reinforcing member 23 is provided behind the seat fixing portion 212. The first reinforcing member 23 is provided, for example, at a position between the second seat 4b and the third seat 4c which is a rear seat fixed to the rear of the second seat 4b. Specifically, the first reinforcing member 23 is provided in a region behind the seat fixing portion 212 of the second seat 4b and in front of the seat fixing portion 212 of the third seat 4c.

The first reinforcing member 23 has a first area 231 and a second area 232. The first region 231 is in contact with the upper surface of the floor panel 21. The second region 232 is in contact with the inner surface of the side panel 22. Specifically, the first region 231 is in contact with the upper surface of the floor panel 21 near the side end in the vehicle width direction of the vehicle. The second region 232 is in contact with the inner surface of the side panel 22 near the lower end.

The length of the first area 231 in the vehicle front-rear direction is smaller than the length of the floor panel 21 in the vehicle front-rear direction. Specifically, the length of the first region 231 in the front-rear direction of the vehicle is larger than the length of the vehicle in the front-rear direction between the seat fixing portion 212 of the second seat 4b and the seat fixing portion 212 of the third seat 4c. small. The length of the first region 231 in the vehicle width direction of the vehicle is smaller than the length of the floor panel 21 in the vehicle width direction of the vehicle. Further, the length of the second region 232 in the front-rear direction of the vehicle is smaller than the length of the side panel 22 in the front-rear direction of the vehicle. The length of the second region 232 in the vehicle height direction is smaller than the length of the side panel 22 in the vehicle height direction.

In the body structure 2, since the floor panel 21 is provided with the first reinforcing member 23 in this manner, it is possible to make it difficult for the floor panel 21 to be deformed by the force transmitted from the seat 4. The case where the force is transmitted from the seat 4 to the floor panel 21 includes, for example, a case where tension is generated in the seat belt due to a frontal collision or a sudden stop of the vehicle. When tension is generated in the seat belt, a force for pulling the floor panel 21 upward, for example, from the seat 4 to the vicinity of the seat fixing portion 212 of the floor panel 21 is generated via the seat belt fixing portion provided in the seat 4. Transmitted.

In the body structure 2, the first reinforcing member 23 is provided behind the seat fixing portion 212 of the floor panel 21, so that the floor panel 21 is prevented from being deformed by the force transmitted from the seat 4 to the floor panel 21. can do. The body structure 2 also includes a first region 231 that contacts the upper surface of the floor panel 21 and a second region 232 that contacts the inner surface of the side panel 22. Therefore, in the body structure 2, since the first region 231 is connected to the second region 232, the force transmitted from the seat 4 to the first region 231 via the floor panel 21 causes, for example, the first region 231 to move. The upward movement can be suppressed.

As a result, since the body structure 2 has the first reinforcing member 23 including the first region 231 and the second region 232, the floor panel 21 can be made difficult to be deformed by the force transmitted from the seat 4. ..

As shown in FIG. 3, the first reinforcing member 23 may include a first member 233 and a second member 234. The first reinforcing member 23 is formed by joining the first member 233 and the second member 234. In the example shown in FIG. 3, the first member 233 includes a first region 231 and a second region 232. The second member 234 includes a second region 232. The first member 233 and the second member 234 are welded on the side panel 22. Since the first reinforcing member 23 has the second member 234 in addition to the first member 233, the second region 232 in contact with the inner surface of the side panel 22 can be enlarged.

Since the first reinforcing member 23 has the first member 233 and the second member 234, the body structure 2 can improve the assemblability of the first reinforcing member 23 to the floor panel 21 and the side panel 22. For example, since the first reinforcing member 23 includes the first member 233 and the second member 234, the variation in the angle between the floor panel 21 and the side panel 22 that occurs when the side panel 22 is attached to the floor panel 21. Can be absorbed and the first reinforcing member 23 can be assembled to the floor panel 21 and the side panel 22.

The second reinforcing member 24 reinforces the floor panel 21. The second reinforcing member 24 has, for example, a hat-shaped cross section. The second reinforcing member 24 has, for example, a downwardly convex shape in the vehicle height direction. As shown in FIG. 2, the second reinforcing member 24 is fixed to the lower surface of the floor panel 21 and extends in the front-rear direction of the vehicle. The second reinforcing member 24 has two rows of reinforcements 241 in the vehicle width direction of the vehicle, that is, a first reinforcement 241a and a second reinforcement 241b. The first reinforcement 241a is a reinforcement provided on the left side in the vehicle width direction of the vehicle. The second reinforcement 241b is a reinforcement provided on the right side in the vehicle width direction of the vehicle.

The end portion of the first region 231 of the first reinforcing member 23 on the side opposite to the side panel 22 side is located inside the end portion of the second reinforcing member 24 on the side panel 22 side in the vehicle width direction of the vehicle. ..

Specifically, the end portion of the first region 231 of the first reinforcing member 23 on the right side in the vehicle width direction of the vehicle is closer to the vehicle than the end portion of the first reinforcement 241a on the left side in the vehicle width direction of the vehicle. Located on the right side in the width direction. A part of the region including the right end portion of the first reinforcing member 23 overlaps, for example, a linear region of the first reinforcement 241a that extends in the vehicle front-rear direction. Further, the left end of the first region 231 of the first reinforcing member 23 in the vehicle width direction of the vehicle is closer to the left side of the second reinforcement 241b in the vehicle width direction of the vehicle than the right side end of the second reinforcement 241b is to the vehicle width direction. Located on the left side. A part of the region including the left end portion of the first reinforcing member 23 overlaps, for example, a linear region of the second reinforcement 241b that extends in the front-rear direction of the vehicle.

The body structure 2 thus provided with the first reinforcing member 23 can make it more difficult to deform the floor panel 21 when a force is transmitted from the seat 4 to the floor panel 21.

In the above embodiment, the example in which the first reinforcing member 23 is formed by joining the first member 233 and the second member 234 is shown, but the present invention is not limited to this. The first reinforcing member 23 may be formed of one member.

[Effects of the vehicle body structure 2 according to the present embodiment]
The vehicle body structure 2 according to the present embodiment includes a floor panel 21 that forms a floor of the vehicle and a side panel 22 that forms a side surface of the vehicle and has a lower end connected to a side end of the floor panel 21. And a seat fixing portion 212 for fixing the seat 4 on the upper surface of the floor panel 21. The body structure 2 is provided behind the seat fixing portion 212 and includes a first region 231 that is in contact with the upper surface of the floor panel 21 and a second region 232 that is in contact with the inner side surface of the side panel 22. It has a first reinforcing member 23.

The vehicle body structure 2 according to the present embodiment is thus provided at the rear of the seat fixing portion 212 and is in contact with the first region 231 in contact with the upper surface of the floor panel 21 and the inner surface of the side panel 22. The first reinforcing member 23 including the second region 232. That is, in the body structure 2, the first reinforcing member 23 is provided behind the seat fixing portion 212 on the upper surface of the floor panel 21. The first reinforcing member 23 includes a first area 231 that contacts the upper surface of the floor panel 21 and a second area 232 that contacts the inner surface of the side panel 22. As a result, the body structure 2 having the first reinforcing member 23 can suppress the deformation of the floor panel 21 due to the force transmitted from the seat 4.

Although the present disclosure has been described using the embodiments, the technical scope of the present disclosure is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist thereof. is there. For example, the specific embodiment of device distribution/integration is not limited to the above embodiment, and all or part of the device may be functionally or physically distributed/integrated in arbitrary units. You can Further, a new embodiment generated by an arbitrary combination of a plurality of embodiments is also included in the embodiments of the present disclosure. The effect of the new embodiment produced by the combination also has the effect of the original embodiment.

This application is based on the Japanese patent application (Japanese Patent Application No. 2019-025493) filed on February 15, 2019, the content of which is incorporated herein by reference.

The body structure 2 according to the present disclosure can prevent the floor panel 21 from being deformed by the force transmitted from the seat 4 by including the first reinforcing member 23.

DESCRIPTION OF SYMBOLS 1... Frame 2... Body structure 21... Floor panel 211... Mounting part 212... Seat fixing part 22... Side panel 23... First reinforcing member 231... First Area 232...Second area 233...First member 234...Second member 24...Second reinforcing member 241a...First reinforcement 241b...Second reinforcement 3... Elastic member 4... Sheet 4a... First sheet 4b... Second sheet 4c... Third sheet

Claims

A floor panel forming the floor of the vehicle,
A side panel forming a side surface of the vehicle, the lower end of which is connected to a side end of the floor panel,
A seat fixing portion for fixing a seat on the upper surface of the floor panel,
A first reinforcing member that is provided behind the seat fixing portion and includes a first region in contact with the upper surface of the floor panel and a second region in contact with the inner side surface of the side panel;
A vehicle body structure comprising:
Further comprising a second reinforcing member fixed to the lower surface of the floor panel and extending in the front-rear direction of the vehicle,
An end of the first region on the side opposite to the side panel side is located inside an end of the second reinforcing member on the side panel side in the vehicle width direction of the vehicle. ,
The vehicle body structure according to claim 1.
The first reinforcing member is provided at a position between the seat and a rear seat fixed to the rear of the seat,
The vehicle body structure according to claim 1.