CN112789215A

CN112789215A - Vehicle body structure of vehicle

Info

Publication number: CN112789215A
Application number: CN201980063941.0A
Authority: CN
Inventors: 金光伸彦
Original assignee: Isuzu Motors Ltd
Current assignee: Isuzu Motors Ltd
Priority date: 2018-09-28
Filing date: 2019-09-13
Publication date: 2021-05-11
Anticipated expiration: 2039-09-13
Also published as: WO2020066690A1; PH12021550613A1; JP7119850B2; JP2020050268A; CN112789215B

Abstract

A vehicle body structure (2) of a vehicle is provided with: a floor panel (21) provided above a frame (1) extending in the front-rear direction of the vehicle in the height direction of the vehicle; and a reinforcement member (22) that reinforces the floor panel (21), wherein the floor panel (21) has a plurality of mounting portions (211) for joining the frame (1) to the floor panel (21), the reinforcement member (22) has a reinforcement (221) that includes a 1 st region (222) and a 2 nd region (223), the 1 st region (222) extending in the front-rear direction of the vehicle, the 2 nd region (223) being provided between a rear end of the 1 st region (222) in the front-rear direction of the vehicle and a rear end mounting portion of the plurality of mounting portions (211) that is provided rearmost, and a distance from the rear end mounting portion in the vehicle width direction of the vehicle decreases toward the rear of the vehicle.

Description

Vehicle body structure of vehicle

Technical Field

The present disclosure relates to a vehicle body structure of a vehicle.

Background

Conventionally, a vehicle is provided with a vehicle body structure having a floor panel. Patent document 1 discloses a floor structure having a floor panel provided with a channel-shaped reinforcement on the lower side.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2008-238884

Disclosure of Invention

Technical problem to be solved by the invention

A reinforcement member that reinforces a floor panel included in a vehicle body structure of a vehicle may include a reinforcement linearly extending in a vehicle front-rear direction. In this case, there arises a problem that it is difficult to secure the rigidity of the floor panel.

Accordingly, the present disclosure has been made in view of the above circumstances, and an object thereof is to provide a vehicle body structure of a vehicle in which the rigidity of a floor panel is improved.

Means for solving the problems

In a first aspect of the present disclosure, there is provided a vehicle body structure of a vehicle, comprising: a floor panel provided above a frame extending in a front-rear direction of a vehicle in a height direction of the vehicle; and a reinforcement member that reinforces the floor panel, the floor panel having a plurality of mounting portions for coupling the frame to the floor panel, the reinforcement member having a reinforcement including a 1 st region and a 2 nd region, the 1 st region extending in the front-rear direction of the vehicle, the 2 nd region being provided between a rear end of the 1 st region in the front-rear direction of the vehicle and a rear end mounting portion provided rearmost among the plurality of mounting portions, and a distance between a mounting portion and the rear end mounting portion in the vehicle width direction of the vehicle being reduced toward the rear direction of the vehicle.

In addition, the reinforcement may be convex downward in the height direction of the vehicle. Further, as the reinforcement, the reinforcement member may have a 1 st reinforcement provided on a left side of the vehicle and a 2 nd reinforcement provided on a right side of the vehicle.

Further, the reinforcing member may further include a 1 st joint portion that joins the 1 st reinforcement and the 2 nd reinforcement to each other at a connection position between the 1 st region and the 2 nd region.

Further, the floor panel may further include a coupling portion that couples the plurality of mounting portions, and an end portion of the 2 nd region opposite to a side coupled to a rear end of the 1 st region may be fixed to the coupling portion.

Effects of the invention

According to the present disclosure, the effect of improving the rigidity of the floor panel is achieved.

Drawings

Fig. 1 shows a state of a vehicle provided with a vehicle body structure according to the present embodiment.

Fig. 2 shows a structure of a floor panel and a partial region of a reinforcing member.

Detailed Description

< this embodiment > [ peripheral structure of vehicle body structure 2 ]

Fig. 1 is a diagram showing a state of a vehicle provided with a vehicle body structure 2 of the present embodiment. Fig. 2 is a diagram showing the structure of a partial region of the floor panel 21 and the reinforcing member 22. Fig. 2 is a view showing a structure of a portion of the floor panel 21 shown in fig. 1, which is viewed from below in the height direction of the vehicle.

The vehicle has a frame 1, a vehicle body structure 2, and an elastic member 3. The frame 1 extends in the front-rear direction of the vehicle. The frame 1 includes, 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 vehicle body structure 2 described later, and vehicle components such as an engine and a transmission, not shown. The vehicle body structure 2 is a vehicle body provided above the frame 1 in the vehicle height direction. The vehicle body structure 2 constitutes, for example, an engine room, a vehicle cabin, a cargo compartment, and the like. The details of the vehicle body structure 2 will be described later.

The elastic member 3 is provided between the frame 1 and the vehicle body structure 2. Specifically, the plurality of elastic members 3 are provided between each of the plurality of mounting portions 211 of the floor panel 21, which will be described later, and the frame 1. The elastic member 3 is formed of, for example, rubber. In the vehicle, the elastic member 3 is provided between the frame 1 and the vehicle body structure 2, and thus, for example, the elastic member 3 absorbs vibration generated in the frame 1 during traveling of the vehicle, whereby vibration of the vehicle body structure 2 due to the vibration of the frame 1 can be suppressed. The details of the elastic member 3 will be described later.

[ Structure of vehicle body Structure 2 ]

The vehicle body structure 2 includes a floor panel 21 and a reinforcement member 22. The floor panel 21 is a member that forms the floor of the vehicle compartment. The floor panel 21 is, for example, a flat plate shape, and forms a lower surface of the vehicle body structure 2 in the vehicle height direction. The floor panel 21 is provided above the frame 1 in the vehicle height direction. The floor panel 21 has a flat plate shape, for example, but may have irregularities.

The floor panel 21 has a plurality of mounting portions 211 and coupling portions 213. The mounting portion 211 is a portion for coupling the frame 1 to the floor panel 21. As the plurality of mounting portions 211, for example, 2-row portions are provided in the vehicle width direction of the vehicle and 4-row portions are provided in the vehicle front-rear direction, so that the mounting portions 211 are provided at 8 positions of the floor panel 21.

Specifically, as the plurality of mounting portions 211, a 1 st left mounting portion 211a, a 2 nd left mounting portion 211b, a 3 rd left mounting portion 211c, and a 4 th left mounting portion 211d are provided on the left side in the vehicle width direction of the vehicle in this order from the front to the rear in the front-rear direction of the vehicle. Further, as the plurality of mounting portions 211, a 1 st right mounting portion 211e, a 2 nd right mounting portion 211f, a 3 rd right mounting portion 211g, and a 4 th right mounting portion 211h are provided in this order from the front to the rear in the front-rear direction of the vehicle on the right side in the vehicle width direction of the vehicle.

The 1 st left mounting portion 211a and the 1 st right mounting portion 211e are provided near the front end of the vehicle in the floor panel 21, for example. The 2 nd left mounting portion 211b and the 2 nd right mounting portion 211f are provided in the vicinity of the front wheel between the front wheel and the rear wheel of the vehicle in the floor panel 21, for example. The 3 rd left mounting portion 211c and the 3 rd right mounting portion 211g are provided in the vicinity of the rear wheel between the front wheel and the rear wheel of the vehicle in the floor panel 21, for example. The 4 th left mounting portion 211d and the 4 th right mounting portion 211h are provided near the rear end of the vehicle in the floor panel 21, for example.

The mounting portion 211 has a hole 212. Specifically, the 8-part mounting portions 211 have holes 212, and the 1 st left mounting portion 211a to the 4 th right mounting portion 211h have the 1 st left hole 212a to the 4 th right hole 212h, respectively. The hole 212 is, for example, a hole into which a bolt is inserted. The floor panel 21 is fixed to the frame 1 with the elastic member 3 interposed therebetween by inserting bolts into holes formed in the frame 1, the elastic member 3, and the mounting portion 211, and fastening nuts to the inserted bolts.

As the elastic member 3, for example, 8 elastic members, i.e., the 1 st left elastic member 3a to the 4 th right elastic member 3h are provided. Specifically, the 1 st left elastic member 3a to the 4 th right elastic member 3h are respectively provided below the 1 st left mounting portion 211a to the 4 th right mounting portion 211h in the vehicle height direction.

The coupling portion 213 couples the plurality of mounting portions 211. Specifically, the joint portion 213 extends in the vehicle width direction of the vehicle at the rear end of the floor panel 21 in the vehicle front-rear direction, and joins the 4 th left attachment portion 211d and the 4 th right attachment portion 211 h.

The reinforcement member 22 reinforces the floor panel 21. The reinforcing member 22 has a reinforcing member 221 and a 1 st joint portion 224. The reinforcement 221 is, for example, convex downward in the height direction of the vehicle, and is fixed to the lower surface of the floor panel 21. The reinforcement 221 is provided with, for example, 2 rows in the vehicle width direction of the vehicle. Specifically, the 1 st reinforcement 221a and the 2 nd reinforcement 221b are provided as the reinforcements 221. The 1 st reinforcement 221a is a reinforcement provided on the left side of the vehicle. The 2 nd reinforcement 221b is a reinforcement provided on the right side of the vehicle.

Since the reinforcement member 22 includes the 2-row reinforcement 221, that is, the 1 st reinforcement 221a and the 2 nd reinforcement 221b in the vehicle width direction of the vehicle, the rigidity of the floor panel 21 in the vicinity of the mounting portion 211 of the vehicle body structure 2 can be further improved.

The stiffener 221 includes a 1 st region 222 and a 2 nd region 223. The 1 st region 222 is a region extending in the front-rear direction of the vehicle. Specifically, the 1 st region 222 extends rearward of the 3 rd left mounting portion 211c and the 3 rd right mounting portion 211g in the front-rear direction of the vehicle, for example.

The 2 nd region 223 is a region which is provided between the rear end of the 1 st region 222 in the vehicle front-rear direction and the rearmost rear end mounting portion of the plurality of mounting portions 211, and whose distance from the rear end mounting portion in the vehicle width direction of the vehicle decreases toward the rear of the vehicle. Specifically, in the case of the 1 st reinforcement 221a provided on the left side of the vehicle, the rear end mounting portion is the 4 th left mounting portion 211 d. In the case of the 2 nd reinforcement 221b provided on the right side of the vehicle, the rear end mounting portion is the 4 th right mounting portion 211 h. The end of the 2 nd region 223 opposite to the side coupled to the rear end of the 1 st region 222 is fixed to the coupling portion 213.

The 1 st joint 224 joins the 1 st stiffener 221a and the 2 nd stiffener 221b at the joint between the 1 st region 222 and the 2 nd region 223. The 1 st joint portion 224 is convex toward the lower side in the height direction of the vehicle, for example, and extends in the vehicle width direction of the vehicle. The 1 st joint 224 is fixed to the lower surface of the floor panel 21.

In the vehicle body structure 2, the 1 st reinforcement 221a and the 2 nd reinforcement 221b are joined by the 1 st joining portion 224 at the joining position of the 1 st region 222 and the 2 nd region 223 in this way, whereby the bent portion of the reinforcement 221 can be reinforced. Thus, the vehicle body structure 2 can further improve the rigidity of the floor panel 21 by having the 1 st joint portion 224.

In the above embodiment, the example in which the reinforcing member 22 has the 2-row reinforcement 221 in the vehicle width direction of the vehicle is shown, but the present invention is not limited thereto. The reinforcing member 22 may have 3 or more rows of reinforcements 221 in the vehicle width direction of the vehicle.

[ Effect of the vehicle body Structure 2 of the present embodiment ]

The vehicle body structure 2 of the present embodiment includes: a floor panel 21 provided above the frame 1 extending in the front-rear direction of the vehicle in the height direction of the vehicle; and a reinforcing member 22 that reinforces the floor panel 21. The floor panel 21 has a plurality of attachment portions 211 for coupling the frame 1 to the floor panel 21. Further, the reinforcement member 22 has a reinforcement 221 including a 1 st region 222 and a 2 nd region 223, the 1 st region 222 extending in the front-rear direction of the vehicle, the 2 nd region 223 being provided between a rear end of the 1 st region 222 in the front-rear direction of the vehicle and a rear end mounting portion provided rearmost among the plurality of mounting portions 211, and a distance from the rear end mounting portion in the vehicle width direction of the vehicle decreases toward the rear of the vehicle.

The vehicle body structure 2 has a reinforcement member 22, the floor panel 21 is reinforced by the reinforcement member 22, the reinforcement member 22 has a reinforcement 221 including a 1 st region 222 and a 2 nd region 223, the 1 st region extending in the front-rear direction of the vehicle, the 2 nd region 223 being provided between a rear end of the 1 st region 222 and a rear end mounting portion provided rearmost among the plurality of mounting portions 211, and a distance from the rear end mounting portion in the vehicle width direction of the vehicle decreases toward the rear of the vehicle.

In this way, in the vehicle body structure 2, the reinforcement 221 is brought close to the rear end mounting portion of the floor panel 21, whereby the rigidity of the floor panel 21 can be improved. As a result, the vehicle body structure 2 can suppress vibration of the floor panel 21 and suppress sound generated by vibration of the floor panel 21 by increasing the rigidity of the floor panel 21.

The present disclosure has been described above with reference to the embodiments, but the scope of the present disclosure is not limited to the scope described in the above embodiments, and various modifications and changes can be made within the scope of the present disclosure. For example, the specific embodiments of the dispersion and integration of the devices are not limited to the above embodiments, and all or a part of the embodiments may be configured to be functionally or physically dispersed and integrated in arbitrary units. In addition, a new embodiment resulting from any combination of the plurality of embodiments is also included in the embodiments of the present disclosure. The effect of the new embodiment by the combination is also the effect of the original embodiment.

The present application is based on the japanese patent application filed on 28/09/2018 (japanese application 2018-183652), the contents of which are hereby incorporated by reference.

Industrial applicability

According to the present disclosure, it is useful to provide a vehicle body structure of a vehicle in which the rigidity of a floor panel is improved.

Description of the reference numerals

1. frame

2. vehicle body structure

21. floor panel

211. mounting part

211 a. 1 st mounting part

211 b. the 2 nd left mounting part

211 c. the 3 rd mounting part

211 d. 4 th left mounting part

211 e.1 st mounting part

211 f. right mounting part 2

211 g. the 3 rd mounting part

211 h. the 4 th right mounting part

212. hole

212 a. 1 st left hole

212 b. the 2 nd hole

212 c. 3 rd hole

212 d. 4 th left hole

212 e. right hole of 1 st

212 f. right hole 2

212 g.3 rd hole

212 h. the 4 th right hole

213. binding part

22. reinforcing member

221. Reinforcement

221 a. 1 st stiffener

221 b. 2 nd stiffener

222. region 1

223. 2. region

224. 1. combination part

3. elastic member

3 a. left elastic member of 1 st

3 b. the 2 nd left elastic member

3 c. left elastic member of No. 3

3 d. left elastic member of 4 th

3 e. right elastic member of 1 st

3 f. right elastic member of 2 nd

3 g. right elastic member of 3 rd

3 h. right elastic member of 4 th

Claims

1. A vehicle body structure of a vehicle, characterized by comprising:

a floor panel provided above a frame extending in a front-rear direction of a vehicle in a height direction of the vehicle, an

A reinforcement member that reinforces the floor panel;

the floor panel has a plurality of mounting portions for coupling the frame with the floor panel;

the reinforcing member has a reinforcing member including a 1 st region and a 2 nd region,

the 1 st zone extends in the front-rear direction of the vehicle,

the 2 nd region is provided between a rear end of the 1 st region in the front-rear direction of the vehicle and a rear end mounting portion provided rearmost of the plurality of mounting portions, and a distance between the mounting portion and the rear end mounting portion in the vehicle width direction of the vehicle decreases toward the rear of the vehicle.

2. The vehicle body structure of claim 1,

the reinforcement is convex toward the lower side in the height direction of the vehicle.

3. The vehicle body structure of a vehicle according to claim 1 or 2,

as the reinforcement, the reinforcement member has:

a 1 st reinforcement provided on a left side of the vehicle, an

A 2 nd reinforcement disposed on a right side of the vehicle.

4. The vehicle body structure of claim 3,

the reinforcing member further includes a 1 st joint portion that joins the 1 st reinforcement and the 2 nd reinforcement at a connection position between the 1 st region and the 2 nd region.

5. The vehicle body structure of a vehicle according to any one of claims 1 to 4,

the floor panel further has a coupling portion for coupling the plurality of mounting portions;

an end portion of the 2 nd region opposite to a side coupled to a rear end of the 1 st region is fixed to the coupling portion.