JPS59109467A - Under-guard - Google Patents
Under-guardInfo
- Publication number
- JPS59109467A JPS59109467A JP57219318A JP21931882A JPS59109467A JP S59109467 A JPS59109467 A JP S59109467A JP 57219318 A JP57219318 A JP 57219318A JP 21931882 A JP21931882 A JP 21931882A JP S59109467 A JPS59109467 A JP S59109467A
- Authority
- JP
- Japan
- Prior art keywords
- underguard
- guard
- under
- flat plate
- thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims description 10
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 3
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 3
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 6
- 239000004917 carbon fiber Substances 0.000 abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004760 aramid Substances 0.000 abstract description 3
- 229920003235 aromatic polyamide Polymers 0.000 abstract description 3
- 239000003822 epoxy resin Substances 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 abstract description 3
- 229920000647 polyepoxide Polymers 0.000 abstract description 3
- 238000003475 lamination Methods 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000004575 stone Substances 0.000 description 4
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005649 polyetherethersulfone Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
- B62D35/02—Streamlining the undersurfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2072—Floor protection, e.g. from corrosion or scratching
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は自動車のエンジン駆動機構が納められている下
部構造を保護するだめのアンダーガードに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an underguard for protecting a lower structure in which an engine drive mechanism of an automobile is housed.
近年、石油事情の悪化と共に、自動車の車体重量の軽減
化を図るだめ、ドライブシャフトやホイールの軽量化を
はじめ、最近に於てはシャーシー構造自体の軽量化を図
ることが進められている。In recent years, with the deterioration of the oil situation, efforts have been made to reduce the weight of automobiles, including efforts to reduce the weight of drive shafts and wheels, as well as the chassis structure itself.
このような車輛の軽量化を図ることは自動車の走行エネ
ルギーコストの低減から好ましいことではあるが、一方
に於ては車輛の障害物への衝突による変形や、悪路を走
行する際の飛び石による衝撃、又は車輛底面の路面との
撃突による破損を生ずる結果を招いており、この傾向は
とくにラリー用車輛に於ては著るしい傾向を示している
。そこで、車輛の上述した如き破損を防止するだめ車輛
を保護材としてアルミ材で作られたアンダーガードの開
発が検討されてきてはいるが、アルミ材で作られたアン
ダーガードでは剛性が不足すると共に、重量も重く、そ
の目的を十分に発揮したアンダーガードとはいえないも
のとなっている。Although it is desirable to reduce the weight of such vehicles because it reduces the energy cost of driving the vehicle, it also reduces the risk of deformation due to collisions with obstacles and the risk of flying stones when driving on rough roads. This results in damage due to impact or collision of the bottom of the vehicle with the road surface, and this tendency is particularly noticeable in rally vehicles. Therefore, the development of an under guard made of aluminum material as a protective material for the vehicle to prevent the above-mentioned damage to the vehicle has been considered, but under guards made of aluminum material lack rigidity and It is also heavy and cannot be said to be an under guard that fully fulfills its purpose.
そこで本発明者等は上述した現状に鑑み、その目的を十
分に満足しうるアンダーガードを開発すべく検討した結
果本発明を完成したものであり、その要旨は、弾性率４
ｔ／−以上、密度１．４〜１゜８７１ ／ ｃｃ、肉厚
４雇以上なる繊維強化プラスチツク材よシ構成された１
つ以上の曲板部と平板部とを一体化した繊維強化複合材
料製アンダーガード匠ある。Therefore, in view of the above-mentioned current situation, the present inventors have completed the present invention as a result of studies to develop an under guard that can fully satisfy the purpose.
1 made of fiber-reinforced plastic material with a density of 1.4 to 1°871/cc and a wall thickness of 4 mm or more.
There is an under guard made of fiber-reinforced composite material that integrates three or more curved plate parts and a flat plate part.
第１図及び第２図は本発明のアンダーガードの裏面の斜
視図を示したものであり、第１図は通常の車輌に用いる
一枚板状のアンダーガードの一例であり、第２図は４輪
駆動車に用いる二分割型のアンダーガードであシ、第２
図中（イ）はフロントアンダーガードを、（ロ）はリア
アンダーガードの斜視図である。Figures 1 and 2 are perspective views of the back side of the under guard of the present invention, with Figure 1 showing an example of a single-plate under guard used in a normal vehicle, and Figure 2 showing a perspective view of the underside of the under guard of the present invention. Two-part under guard used for 4-wheel drive vehicles, No. 2
In the figure, (A) is a perspective view of the front under guard, and (B) is a perspective view of the rear under guard.
本発明のアンダーガードは繊維強化プラスチツク複合材
の板状体を主に構成されており、その板月の弾性率は４
ｔ／ＩＲＪ以上であることが必要である。弾性率が４．
ｔ ／ ＩＩｊ未満の複合材よりなるアンダーガード
では、車輛が路面の障害物等に乗シ上げたり、衝突した
際に破壊を起し、その駆動機構に損傷を起すケースが多
発するようになる。通常は４〜９ｔ／−なる弾性率を有
する複合材を用いる。The under guard of the present invention is mainly composed of a plate-shaped body made of fiber-reinforced plastic composite material, and the elastic modulus of the plate is 4.
It is necessary that it is equal to or greater than t/IRJ. The elastic modulus is 4.
An under guard made of a composite material with a hardness less than t/IIj often breaks when a vehicle runs over or collides with an obstacle on the road surface, causing damage to its drive mechanism. Usually, a composite material having an elastic modulus of 4 to 9 t/- is used.
まだ、この複合材の密度は１．４〜］、、 ８１１ ／
ｃｃなる範囲にあることが必要であシ、その密度が１
．４１１ ／ ｃｃ未滴の場合には強度に優れたアンダ
ーガードとすることができず、一方密度が１．８１ ／
ｃｃを越えて大きなものはアンダーガード自体の自動が
急激に増大し本発明の目的を達成しうるアンダーガード
とすることができない。However, the density of this composite material is 1.4~],, 811 /
It is necessary that the density is in the range cc, and the density is 1
．． If there is no droplet of 411/cc, it will not be possible to obtain an under guard with excellent strength; on the other hand, if the density is 1.81/cc,
If it exceeds cc, the automaticity of the underguard itself will increase rapidly, and the underguard cannot achieve the object of the present invention.
また、内厚は４ｇａ以上あることが必要であり、この肉
厚が４Ｎ未満のものは衝撃破壊性が不足する傾向が犬と
なり目的とするアンダーガードとすることができない。Further, the inner thickness must be 4 ga or more, and if the thickness is less than 4 N, the impact rupture resistance tends to be insufficient and it cannot be used as the intended under guard.
本発明のアンダーガードは弾性率が４ｔ／−以上あるた
め路面よりの小〜中石の飛散により車輛底部に激しい衝
撃が加えられた場合に於ても、或いは車輛が何等かの原
因で飛び上シ、路面上の石にその底面を激突させた際に
於ても、描該アンダーガード部はその衝撃力に十分耐え
車輛を守ることができるのである。それ故、車体のシャ
ーシー等の構造より軽量化した際に於ても、後述する如
き特定構造と相まって車輛安全に守ることができるので
ある。The under guard of the present invention has an elastic modulus of 4t/- or more, so even if a severe impact is applied to the bottom of the vehicle due to small to medium-sized stones flying off the road surface, or if the vehicle is thrown up for some reason. Even when the bottom of the under guard hits a stone on the road surface, the under guard can sufficiently withstand the impact force and protect the vehicle. Therefore, even when the weight is reduced compared to the structure of the vehicle chassis, etc., the vehicle can be kept safe in combination with the specific structure described below.
本発明のアンダーガードを構成する補強用繊維としては
炭素繊維、芳香族ポリアミド繊維を単独で或いに複合し
た形で用いることができ、とくに炭素繊維を主成分とし
て用いることがよく、必要によりアンダーガードの底面
、表面を芳香族ポリアミド繊維で補強した構造とするの
がよい。こ＼に用いられる補強用繊維は一方向に揃えシ
ート状物、織物状物、Ｘプリプレグ状物として、或いは
ロービング状物として用いることができ、場合によって
はガラス繊維等の他の繊維を必要により前記条件を逸脱
しない範囲で併用することもできる。As the reinforcing fibers constituting the under guard of the present invention, carbon fibers and aromatic polyamide fibers can be used alone or in a composite form, and it is particularly preferable to use carbon fibers as the main component. It is preferable that the bottom and surface of the guard be reinforced with aromatic polyamide fibers. The reinforcing fibers used here can be aligned in one direction and used as a sheet-like material, a woven material, an X prepreg-like material, or a roving-like material. They can also be used in combination without departing from the above conditions.
前記被合材を構成するマトリックス樹脂としてはフェノ
ール樹脂、エポキシ樹脂、不飽和ポリエステル樹脂、ポ
リイミド樹脂等をはじめとする熱硬化性樹脂、ポリアミ
ド、ポリエステル、ポリカーボネート、ポリエーテルエ
ーテルスルホン、ホリオレフイン、ポリ塩化ビニルなど
の熱可塑性樹脂を用いることができる。Matrix resins constituting the material to be bonded include thermosetting resins such as phenol resins, epoxy resins, unsaturated polyester resins, and polyimide resins, polyamides, polyesters, polycarbonates, polyether ether sulfones, polyolefins, and polychlorides. Thermoplastic resins such as vinyl can be used.
本発明のアンダーガードは前記した特性を有する板状体
で、第１図及び第２図に示す如き少なくとも１つの平板
部（２）及び曲板部（３）とを一体化せしめたことを特
徴とするものであり、この曲板部は車の走行時に障害物
が主として激突する現象にょる車輛の破損を防止するの
に必要な部分であり、この曲板部を有しない複合材料製
のアンダーガードはその目的を十分に達成することがで
きない。The under guard of the present invention is a plate-shaped body having the above-described characteristics, and is characterized by integrating at least one flat plate part (2) and curved plate part (3) as shown in FIGS. 1 and 2. This curved plate part is a necessary part to prevent damage to the vehicle mainly caused by collisions with obstacles when the car is running, and the undercarriage made of composite material without this curved plate part is The Guard is unable to fully achieve its purpose.
また、本発明のアンダーガードは平板部（２）を備えて
おり、この平板部は、とくに車輛下部からの小石の飛散
による車輛の破壊防止に効力を発揮する。Further, the under guard of the present invention includes a flat plate part (2), and this flat plate part is particularly effective in preventing damage to the vehicle due to scattering of pebbles from the lower part of the vehicle.
本発明のアンダーガードの効率を更に改良せしめたもの
とするにはアンダーガード平板部（２）と曲板部（３）
とを（４）で示すリプ部によって補強することがよく、
このリブ材としては金属製のリブも用い得るが、とくに
弾性率の高い複合材料にて作成するのがよい。In order to further improve the efficiency of the underguard of the present invention, the underguard flat plate part (2) and curved plate part (3) are used.
and is often reinforced by a lip shown in (4),
Although metal ribs may be used as the rib material, it is particularly preferable to use a composite material with a high elastic modulus.
更に本発明のアンダーガードを効率を高めるにはアンダ
ーガードの曲板部（３）と平板ｆｔ１ｓとの接合部近傍
の内厚を９ｇ＋＋以下の割合で厚くすることがよく、更
にリブを設けた本発明のアンダーガードに於ては、どん
なに大きな衝撃が加えられた場合に於ても、その衝撃を
十分に吸収し、車輛の安全を守ることができる。また、
この平板部は第゛〜図（ロ）に示す如く腕曲構造とする
ことによりその強度を一層高いものとすることができる
。Furthermore, in order to improve the efficiency of the underguard of the present invention, it is preferable to increase the inner thickness near the joint between the curved plate part (3) of the underguard and the flat plate ft1s by a ratio of 9g++ or less, and further increase the thickness of the underguard with ribs. With the under guard of the invention, no matter how big the impact is applied, it can sufficiently absorb the impact and protect the safety of the vehicle. Also,
The strength of this flat plate portion can be further increased by forming it into a bent-arm structure as shown in FIGS.
以下実施例によシ本発明を更に詳細に説明する。The present invention will be explained in more detail with reference to Examples below.
実施例１゜
３０００フイラメントの炭素繊維トウを用いて織られた
炭素繊維織物にエポキシ樹脂を含浸したクロスプリプレ
グを用意した。このクロスプリプレグを積層し、第１図
に示した如き構造のアンダーガードを作成した。平板部
（２）の一端と曲板部（３）の一端の肉厚を４藺と々る
ようにし、平板部と曲板部の接合部（５）の肉厚が８Ｍ
となるように積層し、その底面に芳香族ポリアミド繊維
クロスを貼り合せ、第１図に示すアンダーガード作成用
金型に入れ、オートクレーブ中、１３０Ｃで１時間、５
Ｋｇ／ｄな加圧下で成形した。Example 1 A cross prepreg was prepared by impregnating a carbon fiber fabric woven with carbon fiber tow of 3000° filament with an epoxy resin. This cross prepreg was laminated to create an underguard having a structure as shown in FIG. The wall thickness of one end of the flat plate part (2) and one end of the curved plate part (3) is set to 4 mm, and the wall thickness of the joint part (5) of the flat plate part and the curved plate part is 8M.
After laminating the layers so that
It was molded under pressure of Kg/d.
得られたアンダーガードは重量が５６に２であり、同型
のアルミニウム材のアンダーガードの９５Ｋｇに対し著
るしい軽量化を図り得た。The weight of the obtained underguard was 56:2, which was significantly lighter than the 95kg of the same type of underguard made of aluminum material.
上記の如くして得た複合材料製アンダーガードとアルミ
材製アンダーガードとを１６００ｃｃクラスの釆用車の
前部底面に取りつけ山岳路を Ｉ（ｍラリ−したとこ
ろ、アルミ材製アンダーガードは凹凸が激しく、大きな
変形を受けていたのに対し、本発明のアンダーガードは
全く変形していなかった。When the composite material underguard and aluminum underguard obtained as described above were attached to the bottom of the front of a 1600cc class engine car and it was run on a mountain road, the aluminum underguard was uneven. was subjected to severe and large deformation, whereas the under guard of the present invention was not deformed at all.
また、上記本発明の複合材製アンダーガードの製作工程
に於て曲板部と平板部との接合部に第１図中（４）で示
したリブ部を２ケ所設けたアンダーガードを作成し、同
様にラリ−しだが、車が飛びはね路面の石にその底面が
衝突しても同等変形が起らず、車は安全に走破すること
ができだ。In addition, in the manufacturing process of the composite material underguard of the present invention, an underguard was created in which two rib portions were provided at the joint between the curved plate portion and the flat plate portion as shown in (4) in Fig. 1. Similarly, during a rally, even if the car flies off and the bottom of the car hits a stone on the road, the same deformation does not occur and the car is able to drive safely.
第１図（イ）は本発明の一体型アンダーガードの斜視図
であり、（ロ）はその側面図を示したものであり、第２
図（イ）及び（）→は本発明の分割型アンダーガードの
斜視図で（イ）はフロントアンダーガード、（ロ）はリ
アアンダーガードであり、（）］は平板部の平面図であ
るＯ
特 許 出 願 人 三菱レイヨン株式会社代理人
弁理士 １）村 武 敏FIG. 1(A) is a perspective view of the integrated under guard of the present invention, FIG. 1(B) is a side view thereof, and FIG.
Figures (A) and ()→ are perspective views of the split type underguard of the present invention, (A) is the front underguard, (B) is the rear underguard, and ()] is a plan view of the flat plate part. Patent applicant Mitsubishi Rayon Co., Ltd. Agent
Patent attorney 1) Takeshi Mura
Claims (3)
ｇ／ａ、肉厚４Ｍ以上なる繊維強化プラスチツク材より
なる１つ以上の曲板部と平板部とを有する繊維強化複合
材料製アンダーガード。(1) Elastic modulus 4t/- or more, density 1.4 to 1.8
An under guard made of a fiber-reinforced composite material having one or more curved plate parts and a flat plate part made of fiber-reinforced plastic material with a wall thickness of 4M or more.
びその近傍の複合材の肉厚が最大となっていることを特
徴とする特許請求の範囲第１項記載のアンダーガード。(2) The underguard according to claim 1, wherein the thickness of the composite material at the contact point between the flat plate portion and the curved plate portion of the underguard and in the vicinity thereof is maximum.
、少なくとも１本のアンダーガード長手方向に延びたリ
ブによって補強されていることを特徴とする特許請求の
範囲第１項又は第２項記載のアンダーガード。(3) Claims 1 or 2, characterized in that the back surfaces of the flat plate portion and the curved plate portion of the underguard are reinforced by at least one rib extending in the longitudinal direction of the underguard. Under guard as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57219318A JPS59109467A (en) | 1982-12-16 | 1982-12-16 | Under-guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57219318A JPS59109467A (en) | 1982-12-16 | 1982-12-16 | Under-guard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59109467A true JPS59109467A (en) | 1984-06-25 |
Family
ID=16733599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57219318A Pending JPS59109467A (en) | 1982-12-16 | 1982-12-16 | Under-guard |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59109467A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5322311A (en) * | 1991-11-06 | 1994-06-21 | Dunn Christopher J | Bicycle mud guard |
| JP2001105996A (en) * | 1999-10-04 | 2001-04-17 | Mitsuiya Kogyo Kk | Floor back cover for automobile |
| EP1190937A1 (en) * | 2000-09-22 | 2002-03-27 | Peguform France | Fairing for the underside of an automobile with improved resistance |
| US6890023B2 (en) | 2002-04-19 | 2005-05-10 | Patent Holding Company | Reinforced composite inner roof panel of the cellular core sandwich-type and method of making same |
| JP2006240408A (en) * | 2005-03-02 | 2006-09-14 | Hirotani:Kk | Light/sound-absorbing under-cover for automobile |
| WO2015049988A1 (en) * | 2013-10-04 | 2015-04-09 | Toyota Jidosha Kabushiki Kaisha | Vehicle underfloor structure |
| EP3378705A1 (en) * | 2017-03-22 | 2018-09-26 | Toyota Jidosha Kabushiki Kaisha | Vehicle understructure |
-
1982
- 1982-12-16 JP JP57219318A patent/JPS59109467A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5322311A (en) * | 1991-11-06 | 1994-06-21 | Dunn Christopher J | Bicycle mud guard |
| JP2001105996A (en) * | 1999-10-04 | 2001-04-17 | Mitsuiya Kogyo Kk | Floor back cover for automobile |
| EP1190937A1 (en) * | 2000-09-22 | 2002-03-27 | Peguform France | Fairing for the underside of an automobile with improved resistance |
| FR2814425A1 (en) * | 2000-09-22 | 2002-03-29 | Peguform France | ENGINE FAIRING FOR VEHICLE WITH IMPROVED RESISTANCE |
| US6890023B2 (en) | 2002-04-19 | 2005-05-10 | Patent Holding Company | Reinforced composite inner roof panel of the cellular core sandwich-type and method of making same |
| JP2006240408A (en) * | 2005-03-02 | 2006-09-14 | Hirotani:Kk | Light/sound-absorbing under-cover for automobile |
| WO2015049988A1 (en) * | 2013-10-04 | 2015-04-09 | Toyota Jidosha Kabushiki Kaisha | Vehicle underfloor structure |
| JP2015074250A (en) * | 2013-10-04 | 2015-04-20 | トヨタ自動車株式会社 | Vehicle underfloor structure |
| EP3378705A1 (en) * | 2017-03-22 | 2018-09-26 | Toyota Jidosha Kabushiki Kaisha | Vehicle understructure |
| US10196095B2 (en) | 2017-03-22 | 2019-02-05 | Toyota Jidosha Kabushiki Kaisha | Vehicle understructure |
| CN108622209B (en) * | 2017-03-22 | 2020-11-24 | 丰田自动车株式会社 | vehicle substructure |
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