JP2020138631A

JP2020138631A - Vehicle structure

Info

Publication number: JP2020138631A
Application number: JP2019035206A
Authority: JP
Inventors: 徹也粟飯原; Tetsuya Aihara; 絢一田代; Junichi Tashiro; 岡田　春海; Shunkai Okada; 春海岡田
Original assignee: Daihatsu Motor Co Ltd
Current assignee: Daihatsu Motor Co Ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2020-09-03
Anticipated expiration: 2039-02-28
Also published as: JP7220506B2

Abstract

To provide a vehicle structure capable of properly achieving, with a simple structure, upgrading in strength against a side collision of a vehicle and enhancement in rigidities of installment points of vehicle seats.SOLUTION: A vehicle structure A includes a closed section structural part C including a front-side longitudinal wall 21A and rear-side longitudinal wall 20A that are vertically rising, cause a vertical level difference between a front floor 2f of a compartment and a rear floor 2f, and include attachments 4 for a vehicle seat 3. The front-side longitudinal wall 21A has concave beads 22 that are concave toward backward in a vehicle, and extending in series in a vehicle width direction over a whole length between a pair of lockers 1 or over a whole length from each of the lockers 1 to a floor tunnel 23. A reinforcement member 5 that reinforces each of the attachments 4 is sandwiched between the concave beads 22 and rear-side longitudinal wall 20A, whereby the concave beads, rear-side longitudinal wall, and reinforcement member are joined.SELECTED DRAWING: Figure 1

Description

本発明は、自動車などの車両構造に関する。 The present invention relates to a vehicle structure such as an automobile.

車両の車室内に、車両シートを設置する場合、たとえば特許文献１に記載されているような構成がよく採用される。
同文献においては、車室のフロントフロア部よりもリヤフロア部の方が、高さが高くなるように、それら両フロア部の境界部に段差を生じさせる閉断面構造部が設けられており、この閉断面構造部上に、車両シートが設置される。閉断面構造部は、車両前後方向に対向する上下起立状の２つの縦壁部を有しており、これら２つの縦壁部のうち、前側縦壁部に、車両シート用の取付け部が設けられている。
このような構成によれば、車両シートが、たとえばタンブル型のリヤシートの場合に、その設置に適したものとなる。車両シートは、閉断面構造部上に設置されるため、車両シートの設置箇所の強度確保を合理的に図ることもできる。 When a vehicle seat is installed in the vehicle interior of a vehicle, for example, a configuration as described in Patent Document 1 is often adopted.
In the same document, a closed cross-section structure portion is provided at the boundary between the two floor portions so that the height of the rear floor portion is higher than that of the front floor portion of the passenger compartment. A vehicle seat is installed on the closed cross-section structure. The closed cross-section structure portion has two vertical wall portions that face each other in the front-rear direction of the vehicle, and of these two vertical wall portions, a mounting portion for a vehicle seat is provided on the front vertical wall portion. Has been done.
According to such a configuration, when the vehicle seat is, for example, a tumble type rear seat, it is suitable for its installation. Since the vehicle seat is installed on the closed cross-sectional structure portion, it is possible to reasonably secure the strength of the installation location of the vehicle seat.

しかしながら、従来においては、次に述べるように、改善すべき余地があった。 However, in the past, there was room for improvement as described below.

第１に、車両の設計・製作に際しては、車両の衝突時における安全性を高めることが要請される。ここで、車両の衝突の一態様としては、側突があり、前記した車両シートの設置箇所についても、車両の側突が発生した際の安全性能を高めることが求められる。
第２に、特許文献１には不記載であるが、車両シート用の取付け部には、この取付け部を補強するための補強部材が設けられるのが通例である。この補強部材を設ける場合に、簡易な構成により、優れた補強効果が得られるようにすることも望まれる。 First, when designing and manufacturing a vehicle, it is required to improve the safety in the event of a vehicle collision. Here, one aspect of a vehicle collision is a side collision, and it is required to improve the safety performance when a vehicle side collision occurs at the above-mentioned vehicle seat installation location.
Secondly, although not described in Patent Document 1, it is customary that the mounting portion for the vehicle seat is provided with a reinforcing member for reinforcing the mounting portion. When this reinforcing member is provided, it is also desired that an excellent reinforcing effect can be obtained by a simple configuration.

特開２０１４−１０８７０７号公報Japanese Unexamined Patent Publication No. 2014-108707

本発明は、前記したような事情のもとで考え出されたものであり、車両の側突に対する強度向上や、車両シートの設置箇所の剛性を高めることなどを、簡易な構成によって適切に図ることが可能な車両構造を提供することを、その課題としている。 The present invention has been conceived under the above-mentioned circumstances, and appropriately aims to improve the strength against a side collision of the vehicle and the rigidity of the installation location of the vehicle seat by a simple configuration. The challenge is to provide a vehicle structure that enables this.

上記の課題を解決するため、本発明では、次の技術的手段を講じている。 In order to solve the above problems, the following technical measures are taken in the present invention.

本発明により提供される車両構造は、車室のフロントフロア部とリヤフロア部とに上下段差を生じさせ、かつ車両シート用の取付け部が設けられる上下起立状の前側縦壁部およびその車両後方側に位置する後側縦壁部を含む閉断面構造部と、前記前側縦壁部の前記取付け部を補強するための補強部材と、前記閉断面構造部を車幅方向において挟むように、前記閉断面構造部の車幅方向両外方側に位置して車両前後方向に延びる一対のロッカと、を備えている、車両構造であって、前記閉断面構造部の前記前側縦壁部に、車両後方側に凹んだ形態に設けられ、かつ前記一対のロッカの相互間の全長域、または前記一対のロッカのそれぞれから前記フロントフロア部に設けられたフロアトンネル部に到るまでの全長域にわたって、車幅方向に一連に延びた凹状ビード部を、さらに備えており、前記凹状ビード部と前記後側縦壁部との相互間に、前記補強部材が挟み込まれた状態で、これら三者
は互いに接合されていることを特徴としている。 The vehicle structure provided by the present invention has an upright vertical wall portion on the front side and a rear side of the vehicle, which has a vertical step between the front floor portion and the rear floor portion of the vehicle interior and is provided with a mounting portion for a vehicle seat. The closed cross-sectional structure including the rear vertical wall located in, a reinforcing member for reinforcing the mounting portion of the front vertical wall, and the closed cross-sectional structure so as to sandwich the closed cross-sectional structure in the vehicle width direction. A vehicle structure comprising a pair of rockers located on both outer sides of the cross-sectional structure portion in the vehicle width direction and extending in the vehicle front-rear direction, and the vehicle is provided on the front vertical wall portion of the closed cross-sectional structure portion. Over the entire length range between the pair of rockers, which is recessed on the rear side, or from each of the pair of rockers to the floor tunnel portion provided on the front floor portion. Further, a concave bead portion extending in a series in the vehicle width direction is further provided, and these three parties are in a state where the reinforcing member is sandwiched between the concave bead portion and the rear vertical wall portion. It is characterized by being joined.

このような構成によれば、次のような効果が得られる。
第１に、車両の側突が発生し、車幅方向外方側から車両シートの設置箇所の側部に衝突荷重が入力した際には、この衝突荷重を、前記した閉断面構造部によって受けることとなるが、その前側縦壁部に設けられている凹状ビード部は、衝突荷重に対して高い強度をもつ部位となる。このため、凹状ビード部を含む閉断面構造部は、前記衝突荷重に対して大きな変形を生じ難い部位とし、車両の側突時における安全性（乗員保護性能）を高めることが可能となる。
第２に、車両シート用の取付け部を補強するための補強部材は、前側縦壁部の凹状ビード部と後側縦壁部との相互間に挟まれた状態で、これらと接合されているために、この補強部材の取付け強度、ひいては車両シートの取付け強度を、簡易な構成によって合理的に高めることができる。
第３に、前側縦壁部の凹状ビード部、後側縦壁部、および補強部材の三者が互いに接合されている構成により、閉断面構造部の全体の強度をより高めることも可能となり、車両シートの設置箇所の剛性確保を図る上で、一層好ましいものとなる。
第４に、前側縦壁部の凹状ビード部は、後側縦壁部に接近するように凹んでいるため、凹状ビード部と後側縦壁部との相互間に、補強部材を挟み込む構造を、容易に実現することができる。 According to such a configuration, the following effects can be obtained.
First, when a side collision of the vehicle occurs and a collision load is input to the side of the vehicle seat installation location from the outside in the vehicle width direction, the collision load is received by the closed cross-section structure portion described above. However, the concave bead portion provided on the front vertical wall portion thereof is a portion having high strength against a collision load. For this reason, the closed cross-section structure portion including the concave bead portion is a portion that is unlikely to be greatly deformed with respect to the collision load, and it is possible to enhance safety (occupant protection performance) at the time of a side collision of the vehicle.
Secondly, the reinforcing member for reinforcing the mounting portion for the vehicle seat is joined to the concave bead portion of the front vertical wall portion and the rear vertical wall portion in a state of being sandwiched between them. Therefore, the mounting strength of the reinforcing member, and thus the mounting strength of the vehicle seat, can be reasonably increased by a simple configuration.
Thirdly, the concave bead portion of the front vertical wall portion, the rear vertical wall portion, and the reinforcing member are joined to each other, so that the overall strength of the closed cross-section structure portion can be further increased. This is even more preferable in ensuring the rigidity of the vehicle seat installation location.
Fourth, since the concave bead portion of the front vertical wall portion is recessed so as to approach the rear vertical wall portion, a structure in which a reinforcing member is sandwiched between the concave bead portion and the rear vertical wall portion is provided. , Can be easily realized.

本発明のその他の特徴および利点は、添付図面を参照して以下に行なう発明の実施の形態の説明から、より明らかになるであろう。 Other features and advantages of the present invention will become more apparent from the following description of embodiments of the invention with reference to the accompanying drawings.

本発明に係る車両構造の一例を示す要部概略斜視図である。It is a schematic perspective view of the main part which shows an example of the vehicle structure which concerns on this invention. （ａ）は、図１のIIa−IIa断面図であり、（ｂ）は、図１のIIb−IIb断面図である。(A) is a sectional view taken along line IIa-IIa of FIG. 1, and FIG. 1B is a sectional view taken along line IIb-IIb of FIG. （ａ）は、図１のIIIa−IIIa断面図であり、（ｂ）は、（ａ）のIIIb−IIIb断面図であり、（ｃ）は、（ａ）のIIIc−IIIc断面図である。(A) is a sectional view taken along line IIIa-IIIa of FIG. 1, (b) is a sectional view taken along line IIIb-IIIb of (a), and (c) is a sectional view taken along line IIIc-IIIc of (a). 本発明の他の例を示す要部概略斜視図である。It is a schematic perspective view of the main part which shows another example of this invention.

以下、本発明の好ましい実施の形態について、図面を参照して具体的に説明する。 Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

図１に示す車両構造Ａは、左右一対のロッカ１、車室のフロア部２、このフロア部２に設けられた閉断面構造部Ｃ、この閉断面構造部Ｃの前側縦壁部２１Ａに設けられた車両シート３（図２（ａ）にその一部分である下部フレーム部分のみを示す）用の取付け部４、および補強部材５を備えている。前側縦壁部２１Ａには、後述する凹状ビード部２２が設けられている。 The vehicle structure A shown in FIG. 1 is provided on a pair of left and right rockers 1, a floor portion 2 of the vehicle interior, a closed cross-section structure portion C provided on the floor portion 2, and a front vertical wall portion 21A of the closed cross-section structure portion C. It is provided with a mounting portion 4 for a vehicle seat 3 (showing only a lower frame portion which is a part thereof in FIG. 2A) and a reinforcing member 5. The front vertical wall portion 21A is provided with a concave bead portion 22, which will be described later.

一対のロッカ１は、車両の下部の車幅方向両外方側に位置し、かつ車両前後方向に延びる車体骨格部材であり、強度が高められるように内部空洞状の閉断面構造部材として構成されている。フロア部２は、フロントフロアパネル２０を用いて構成されたフロントフロア部２ｆと、リヤフロアパネル２１を用いて構成され、かつフロントフロア部２ｆに対して上下段差を生じ、フロントフロア部２ｆよりも高い位置に設定されたリヤフロア部２ｒとを有している。
なお、フロア部２の下面側には、車体骨格部材として、左右一対のサイドメンバ６（図においては、一方のみが示されている）が接合されている。これら一対のサイドメンバ６は、車幅方向に互いに間隔を隔てた配置で車両前後方向に延びており、たとえば断面ハット状部材を用いて構成されている。 The pair of rockers 1 are vehicle body skeleton members that are located on both outer sides of the lower part of the vehicle in the vehicle width direction and extend in the vehicle front-rear direction, and are configured as internal hollow closed-section structural members so as to increase strength. ing. The floor portion 2 is configured by using the front floor portion 2f configured by using the front floor panel 20 and the rear floor panel 21, and has a vertical step with respect to the front floor portion 2f, which is higher than the front floor portion 2f. It has a rear floor portion 2r set at a position.
A pair of left and right side members 6 (only one is shown in the figure) are joined to the lower surface side of the floor portion 2 as a vehicle body skeleton member. These pair of side members 6 extend in the front-rear direction of the vehicle in an arrangement spaced apart from each other in the vehicle width direction, and are configured by using, for example, a cross-section hat-shaped member.

図２によく表れているように、閉断面構造部Ｃは、フロントフロアパネル２０の後部に設けられた上向き起立状の後側縦壁部２０Ａと、この後側縦壁部２０Ａの車両前方側に位置するようにしてリヤフロアパネル２１の前部に設けられた下向き起立状（垂下状）の前側縦壁部２１Ａと、を有しており、かつ後側縦壁部２０Ａの上端部が、リヤフロアパネル２１の下面部に溶接され、前側縦壁部２１Ａの下端部が、フロントフロアパネル２０の上面部に溶接された側面断面視閉断面構造の部位である。前側縦壁部２１Ａには、既述したように、車両シート３の取付け部４が設けられ、車両シート３の主要部（不図示）は、リヤフロア部２ｒ上に載設される。 As is well shown in FIG. 2, the closed cross-section structure portion C includes an upward standing rear vertical wall portion 20A provided at the rear portion of the front floor panel 20 and a vehicle front side of the rear vertical wall portion 20A. It has a downward standing (hanging) front vertical wall portion 21A provided at the front portion of the rear floor panel 21 so as to be located at, and the upper end portion of the rear vertical wall portion 20A is the rear floor. The lower end portion of the front vertical wall portion 21A welded to the lower surface portion of the panel 21 is a portion of the side cross-sectional view closed cross-section structure welded to the upper surface portion of the front floor panel 20. As described above, the front vertical wall portion 21A is provided with the mounting portion 4 of the vehicle seat 3, and the main portion (not shown) of the vehicle seat 3 is mounted on the rear floor portion 2r.

図１に示すように、フロントフロア部２ｆの車幅方向中央部には、フロアトンネル部２３が形成されている。図３（ａ）に示すように、このフロアトンネル部２３の後部２３ａは、前側縦壁部２１Ａに設けられた開口部２４をその車両前方側から車両後方側に通過し、後側縦壁部２０Ａに繋がっている。前側縦壁部２１Ａの開口部２４の周縁部には、車両前方側に突出する突出片部２５が形成されている。この突出片部２５は、フロントフロアパネル２０のうちのフロアトンネル部２３に該当する部分の外面部に接合されており、フロアトンネル部２３の一部をなしている（図３（ｂ），（ｃ）も参照）。 As shown in FIG. 1, a floor tunnel portion 23 is formed in the central portion of the front floor portion 2f in the vehicle width direction. As shown in FIG. 3A, the rear portion 23a of the floor tunnel portion 23 passes through the opening 24 provided in the front side vertical wall portion 21A from the front side of the vehicle to the rear side of the vehicle, and the rear side vertical wall portion It is connected to 20A. A protruding piece portion 25 projecting to the front side of the vehicle is formed on the peripheral edge of the opening 24 of the front vertical wall portion 21A. The protruding piece portion 25 is joined to the outer surface portion of the portion of the front floor panel 20 corresponding to the floor tunnel portion 23, and forms a part of the floor tunnel portion 23 (FIGS. 3B, 3), See also c)).

図１および図２に示すように、前側縦壁部２１Ａには、凹状ビード部２２が設けられている。この凹状ビード部２２は、前側縦壁部２１Ａにたとえばプレス加工を施すことにより形成されており、前側縦壁部２１Ａの前面部の一部が、車両後方側に凹んだ形態であり、かつ左右一対のロッカ１のそれぞれ（前側縦壁部２１Ａの車幅方向両端のそれぞれ）からフロアトンネル部２３に到るまでの全長域にわたって、車幅方向に一連に延びている。本実施形態においては、凹状ビード部２２は、フロアトンネル部２３を挟んで左右２つに分かれたかたちに設けられている。各凹状ビード部２２の正面視における上下４本の稜線Ｌ１〜Ｌ４は、略水平な直線状である。 As shown in FIGS. 1 and 2, the front vertical wall portion 21A is provided with a concave bead portion 22. The concave bead portion 22 is formed by, for example, pressing the front vertical wall portion 21A, and a part of the front surface portion of the front vertical wall portion 21A is recessed toward the rear side of the vehicle and is left and right. A series extends in the vehicle width direction over the entire length range from each of the pair of rockers 1 (each of both ends of the front vertical wall portion 21A in the vehicle width direction) to the floor tunnel portion 23. In the present embodiment, the concave bead portion 22 is provided so as to be divided into two left and right sides with the floor tunnel portion 23 interposed therebetween. The four upper and lower ridge lines L1 to L4 in the front view of each concave bead portion 22 are substantially horizontal straight lines.

図３に示すように、フロアトンネル部２３には、その後部２３ａを補強するためのフロアトンネルリインフォース８が接合されている。このフロアトンネルリインフォース８は、たとえば屈曲した金属プレートを用いて構成されており、図３（ｂ），（ｃ）に示すように、その配置は、左右２つの凹状ビード部２２の稜線Ｌ１〜Ｌ４のうちのいずれか、たとえば稜線Ｌ１とオーバラップし、かつ車幅方向において、左右２つの稜線Ｌ１の相互間に挟まれた配置に設けられている。 As shown in FIG. 3, a floor tunnel reinforce 8 for reinforcing the rear portion 23a is joined to the floor tunnel portion 23. The floor tunnel reinforce 8 is configured by using, for example, a bent metal plate, and as shown in FIGS. 3 (b) and 3 (c), the arrangement is such that the ridges L1 to L4 of the two concave bead portions 22 on the left and right are arranged. It overlaps with, for example, the ridge line L1 and is provided so as to be sandwiched between the two left and right ridge lines L1 in the vehicle width direction.

凹状ビード部２２には、追加のビード部２２ａが形成されている。凹状ビード部２２の一般部分は、図２（ｂ）に示すような形態であるのに対し、図２（ａ）に示すように、追加のビード部２２ａは、凹状ビード部２２の一般部分よりも車両後方側にさらに凹んだ部位である。なお、追加のビード部２２ａは、凹状ビード部２２の一部に含まれ、後述するように、補強部材５の取付けに利用される。 An additional bead portion 22a is formed in the concave bead portion 22. The general portion of the concave bead portion 22 has a form as shown in FIG. 2 (b), whereas the additional bead portion 22a is more than the general portion of the concave bead portion 22 as shown in FIG. 2 (a). Is also a recessed part on the rear side of the vehicle. The additional bead portion 22a is included in a part of the concave bead portion 22, and is used for attaching the reinforcing member 5 as described later.

補強部材５は、車両シート３用の取付け部４を補強するように、前側縦壁部２１Ａの後面側に接合される部材であり、車両シート３のボルト止め用のナット５１などを適宜備えている。一方、後側縦壁部２０Ａの一部は、他の部分よりも車両前方側に位置し、追加のビード部２２ａに接近する前寄り壁部２０Ａ’とされている。
補強部材５の下部５ｂは、追加のビード部２２ａと、後側縦壁部２０Ａの前寄り壁部２０Ａ’との相互間に挟み込まれており、かつこれら三者は、スポット溶接などの溶接部Ｗ１を介して互いに、かつ一括して接合されている。
補強部材５の上部５ａは、後側縦壁部２０Ａの上端部とリヤフロアパネル２１との相互間に挟み込まれており、これら三者は、スポット溶接などの溶接部Ｗ２を介して互いに、かつ一括して接合されている。 The reinforcing member 5 is a member joined to the rear surface side of the front vertical wall portion 21A so as to reinforce the mounting portion 4 for the vehicle seat 3, and is appropriately provided with a nut 51 for bolting the vehicle seat 3. There is. On the other hand, a part of the rear vertical wall portion 20A is located on the front side of the vehicle with respect to the other portion, and is a front wall portion 20A'which approaches the additional bead portion 22a.
The lower portion 5b of the reinforcing member 5 is sandwiched between the additional bead portion 22a and the front wall portion 20A'of the posterior vertical wall portion 20A, and these three are welded portions such as spot welds. They are joined to each other and collectively via W1.
The upper portion 5a of the reinforcing member 5 is sandwiched between the upper end portion of the rear vertical wall portion 20A and the rear floor panel 21, and these three parties are collectively and collectively via a welding portion W2 such as spot welding. And are joined.

次に、前記した車両構造Ａの作用について説明する。 Next, the operation of the vehicle structure A described above will be described.

まず、車両の側突が発生し、車幅方向外方側からロッカ１に衝突荷重Ｆが入力した場合には、この衝突荷重Ｆをフロア部２の閉断面構造部Ｃによって受けることとなる。これに対し、閉断面構造部Ｃは、本来的に、それ自体の剛性が高いことに加え、前側縦壁部２１Ａに設けられた凹状ビード部２２は、車幅方向外方側からの衝突荷重Ｆに対して突っ張り力を発揮する大きな強度をもつ。とくに、本実施形態においては、凹状ビード部２２の稜線Ｌ１〜Ｌ４のいずれかと、フロアトンネルリインフォース８とがオーバラップした高さに設定され、フロアトンネルリインフォース８は、凹状ビード部２２が車幅方向内方側に変形または変位することを抑制するようにバックアップする作用を発揮する。このようなことから、閉断面構造部Ｃ、ひいては車両シート３の搭載箇所が、車両の側突時に大きく変形することを防止し、または抑制する上で好ましいものとなり、乗員保護性能を高めることが可能となる。 First, when a side collision of the vehicle occurs and a collision load F is input to the rocker 1 from the outer side in the vehicle width direction, the collision load F is received by the closed cross-section structure portion C of the floor portion 2. On the other hand, the closed cross-section structure portion C has inherently high rigidity, and the concave bead portion 22 provided on the front vertical wall portion 21A has a collision load from the outer side in the vehicle width direction. It has a great strength to exert a tension force against F. In particular, in the present embodiment, any of the ridge lines L1 to L4 of the concave bead portion 22 and the floor tunnel reinforce 8 are set at a height that overlaps, and in the floor tunnel reinforce 8, the concave bead portion 22 is in the vehicle width direction. It exerts the function of backing up so as to suppress deformation or displacement to the inward side. For this reason, the mounting location of the closed cross-section structure portion C, and eventually the vehicle seat 3, is preferable for preventing or suppressing the large deformation at the time of a side collision of the vehicle, and the occupant protection performance can be enhanced. It will be possible.

補強部材５の下部５ｂは、既述したように、前側縦壁部２１Ａの凹状ビード部２２（より厳密には、追加のビード部２２ａ）と、後側縦壁部２０Ａの前寄り壁部２０Ａ’とに挟まれた状態で、これらと溶接されている。また、補強部材５の上部５ａは、後側縦壁部２０Ａの上端部とリヤフロアパネル２１との相互間に挟み込まれた状態で、これらと溶接されている。このため、閉断面構造部Ｃにおける補強部材５の下部５ｂおよび上部５ａの取付け強度を、簡易な構成によって効果的に高めることができる。その結果、補強部材５により補強される車両シート３の取付け部４の強度をも高め、車両シート３の取付け支持状態を強固なものとすることもできる。 As described above, the lower portion 5b of the reinforcing member 5 includes a concave bead portion 22 (more strictly, an additional bead portion 22a) of the front vertical wall portion 21A and a front wall portion 20A of the rear vertical wall portion 20A. It is welded to these while being sandwiched between them. Further, the upper portion 5a of the reinforcing member 5 is welded to the upper end portion of the rear vertical wall portion 20A in a state of being sandwiched between the upper end portion and the rear floor panel 21. Therefore, the mounting strength of the lower portion 5b and the upper portion 5a of the reinforcing member 5 in the closed cross-section structure portion C can be effectively increased by a simple configuration. As a result, the strength of the mounting portion 4 of the vehicle seat 3 reinforced by the reinforcing member 5 can be increased, and the mounting support state of the vehicle seat 3 can be strengthened.

補強部材５の下部５ｂを、前側縦壁部２１Ａの凹状ビード部２２と後側縦壁部２０Ａの前寄り壁部２０Ａ’との相互間に挟み込むための手段として、凹状ビード部２２に追加のビード部２２ａが設けられている。したがって、凹状ビード部２２の一般部分の深さ（図２（ｂ）を参照）は、さほど大きな寸法にする必要がなくなる。凹状ビード部２２の全体の深さを大きな寸法に形成しようとすると、プレス加工が難しくなり、加工不良（亀裂などを含む）を生じる虞があるが、本実施形態のように、追加のビード部２２ａを部分的に設ければ、そのような虞も適切に回避することが可能である。 An additional lower portion 5b of the reinforcing member 5 is added to the concave bead portion 22 as a means for sandwiching the lower portion 5b of the front vertical wall portion 21A between the concave bead portion 22 and the front wall portion 20A'of the rear vertical wall portion 20A. A bead portion 22a is provided. Therefore, the depth of the general portion of the concave bead portion 22 (see FIG. 2B) does not need to be made so large. If it is attempted to form the entire depth of the concave bead portion 22 to a large size, press working may become difficult and processing defects (including cracks) may occur. However, as in the present embodiment, the additional bead portion is added. If the 22a is partially provided, such a risk can be appropriately avoided.

図４は、本発明の他の実施形態を示している。同図において、前記実施形態と同一または類似の要素には、前記実施形態と同一の符号を付すこととし、重複説明は省略する。 FIG. 4 shows another embodiment of the present invention. In the figure, elements that are the same as or similar to those of the embodiment are designated by the same reference numerals as those of the embodiment, and duplicate description will be omitted.

図４に示す車両構造Ａａにおいては、フロア部２にフロアトンネル部２３は設けられておらず、前側縦壁部２１Ａに設けられる凹状ビード部２２は、左右一対のロッカ１の相互間の全長域にわたって一連に延びた構成とされている。
このような構成においては、車両の側突が発生し、一方のロッカ１に衝突荷重Ｆが入力した際には、凹状ビード部２２を他方のロッカ１によってバックアップし、容易に変形または変位しないようにすることが可能である。したがって、本発明が意図する作用を適切に得られることが可能であり、本発明は、上述したような構成とすることもできる。 In the vehicle structure Aa shown in FIG. 4, the floor tunnel portion 23 is not provided on the floor portion 2, and the concave bead portion 22 provided on the front vertical wall portion 21A is the total length area between the pair of left and right rockers 1. It is said that the structure extends over a series.
In such a configuration, when a side collision of the vehicle occurs and a collision load F is input to one rocker 1, the concave bead portion 22 is backed up by the other rocker 1 so as not to be easily deformed or displaced. It is possible to. Therefore, it is possible to appropriately obtain the action intended by the present invention, and the present invention can also have the above-described configuration.

本発明は、上述した実施形態の内容に限定されない。本発明に係る車両構造の各部の具体的な構成は、本発明の意図する範囲内において種々に設計変更自在である。 The present invention is not limited to the contents of the above-described embodiments. The specific configuration of each part of the vehicle structure according to the present invention can be variously redesigned within the scope intended by the present invention.

上述の実施形態においては、補強部材５の下部５ｂを、凹状ビード部２２と後側縦壁部２０Ａとの相互間に挟み付けるための手段として、凹状ビード部２２に追加のビード部２２ａを設けているが、本発明はこれに限定されない。追加のビード部２２ａを設けることなく、凹状ビード部２２と後側縦壁部２０Ａとの相互間に補強部材５の下部５ｂを挟み込
んだ構成とすることも可能である。 In the above-described embodiment, the concave bead portion 22 is provided with an additional bead portion 22a as a means for sandwiching the lower portion 5b of the reinforcing member 5 between the concave bead portion 22 and the posterior vertical wall portion 20A. However, the present invention is not limited to this. It is also possible to have a configuration in which the lower portion 5b of the reinforcing member 5 is sandwiched between the concave bead portion 22 and the posterior vertical wall portion 20A without providing the additional bead portion 22a.

上述の実施形態における閉断面構造部Ｃは、前側縦壁部２１Ａがリヤフロアパネル２１により構成され、かつ後側縦壁部２０Ａがフロントフロアパネル２０により構成されているが、本発明はこれに限定されない。前記とは反対に、前側縦壁部２１Ａがフロントフロアパネル２０により構成され、かつ後側縦壁部２０Ａがリヤフロアパネル２１により構成されていてもよい。
閉断面構造部Ｃ上に設置される車両シート３の具体的な種類も限定されない。このため、閉断面構造部Ｃの前側縦壁部２１Ａに設けられる車両シート３用の取付け部４、およびこれを補強するための補強部材５の具体的な構成、数なども限定されない。 In the closed cross-section structure portion C in the above-described embodiment, the front vertical wall portion 21A is composed of the rear floor panel 21 and the rear vertical wall portion 20A is composed of the front floor panel 20, but the present invention is limited thereto. Not done. Contrary to the above, the front vertical wall portion 21A may be composed of the front floor panel 20, and the rear vertical wall portion 20A may be composed of the rear floor panel 21.
The specific type of the vehicle seat 3 installed on the closed cross-section structure portion C is also not limited. Therefore, the specific configuration and number of the mounting portion 4 for the vehicle seat 3 provided on the front vertical wall portion 21A of the closed cross-section structure portion C and the reinforcing member 5 for reinforcing the mounting portion 4 are not limited.

Ａ，Ａａ車両構造
Ｃ閉断面構造部
１ロッカ
２フロア部
２ｆフロントフロア部
２ｒリヤフロア部
２０Ａ後側縦壁部
２１Ａ前側縦壁部
２２凹状ビード部
２２ａ追加のビード部
２３フロアトンネル部
３車両シート
４取付け部（車両シート用の）
５補強部材
８フロアトンネルリインフォース A, Aa Vehicle structure C Closed cross-section structure 1 Rocker 2 Floor 2f Front floor 2r Rear floor 20A Rear vertical wall 21A Front vertical wall 22 Concave bead 22a Additional bead 23 Floor tunnel 3 Vehicle seat 4 Mounting part (for vehicle seats)
5 Reinforcing member 8 Floor tunnel reinforce

Claims

Includes a vertically upright front vertical wall portion that creates a vertical step between the front floor portion and the rear floor portion of the vehicle interior and is provided with a mounting portion for a vehicle seat, and a rear vertical wall portion located on the rear side of the vehicle. Closed section structure and
A reinforcing member for reinforcing the mounting portion of the front vertical wall portion, and
A pair of rockers located on both outer sides of the closed cross-section structure in the vehicle width direction and extending in the front-rear direction of the vehicle so as to sandwich the closed cross-section structure in the vehicle width direction.
The vehicle structure is equipped with
The front vertical wall portion of the closed cross-sectional structure portion is provided in a shape recessed toward the rear side of the vehicle, and is provided on the front floor portion from the entire length area between the pair of rockers or from each of the pair of rockers. It is further equipped with a concave bead section that extends in a series in the vehicle width direction over the entire length range up to the floor tunnel section.
A vehicle structure characterized in that the reinforcing member is sandwiched between the concave bead portion and the posterior vertical wall portion, and these three are joined to each other.