JPH042581A - Floor structure for automobile - Google Patents
Floor structure for automobileInfo
- Publication number
- JPH042581A JPH042581A JP9920990A JP9920990A JPH042581A JP H042581 A JPH042581 A JP H042581A JP 9920990 A JP9920990 A JP 9920990A JP 9920990 A JP9920990 A JP 9920990A JP H042581 A JPH042581 A JP H042581A
- Authority
- JP
- Japan
- Prior art keywords
- floor panel
- bead
- floor
- sub
- opening
- 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
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
【発明の詳細な説明】 〈産業上の利用分野〉 この発明は自動車のフロア構造に関する。[Detailed description of the invention] <Industrial application field> This invention relates to an automobile floor structure.
〈従来の技術〉
従来の自動車のフロア構造としては、例えば第３図に示
すようなものがある（特公平１−４７３３１号公報参照
）。１がフロアパネルで、真ん中には前後方向（図中Ｘ
方向）に沿うフロアトンネル部２が形成されており、こ
のフロアトンネル部２の左右両側には平面部３（左側だ
け図示）がある。この平面部３の両性側端部はサイドシ
ル４に接続され、前端部はダッシュパネル５の下端に接
続されている。このダッシュパネル５には、左右−附記
されているフロントサイドメンバ６の後端部が、左右の
フランジ部７を介して突き当て状態で接続しである。ま
た、各平面部３の車幅中央位置には、その下面側に断面
ハツト形状の延長部材８をスポット接合しである。この
延長部材８の前端８ａは前記フロントサイドメンバ６の
後端部の下面に接合され、後端は図示せぬリヤサイドメ
ンバの前端部に接合されている。<Prior Art> As a conventional automobile floor structure, there is one shown in FIG. 3, for example (see Japanese Patent Publication No. 1-47331). 1 is the floor panel, and in the middle is the front and back direction (X in the diagram).
A floor tunnel portion 2 is formed along the direction (direction), and flat portions 3 (only the left side is shown) are provided on both left and right sides of the floor tunnel portion 2. Both end portions of the flat portion 3 are connected to the side sills 4, and the front end portion is connected to the lower end of the dash panel 5. The rear end portions of front side members 6 (marked left and right) are connected to this dash panel 5 through left and right flange portions 7 in an abutting state. Furthermore, an extension member 8 having a hat-shaped cross section is spot-bonded to the lower surface of each flat portion 3 at the center position of the vehicle width. The front end 8a of the extension member 8 is joined to the lower surface of the rear end of the front side member 6, and the rear end is joined to the front end of a rear side member (not shown).
〈発明が解決しようとする課題〉
しかしながらこのような従来の自動車のフロア構造にあ
っては、自動車の前部に配置されているエンジンやフロ
ントサスペンションからの振動が、フロントサイドメン
バ６や延長部材８を介してフロアパネル１に伝わってし
まうため、フロアパネル１が全体的に振動して乗員に不
快な振動や振動音を与えるおそれがあった。<Problems to be Solved by the Invention> However, in such a conventional automobile floor structure, vibrations from the engine and front suspension disposed at the front of the automobile are transmitted to the front side member 6 and the extension member 8. Since the vibration is transmitted to the floor panel 1 through the vibrations, the entire floor panel 1 may vibrate, and there is a risk that vibrations and vibration noises may be unpleasant to the occupants.
そのための対策として、フロアパネルｌの板厚を上げた
り、延長部材８とフロアパネル１とのスポット打点を増
やしたりすることも考えられるが、自動車全体の重量的
問題、また組立作業能率の問題等により採用し難い。As a countermeasure for this, it may be possible to increase the thickness of the floor panel 1 or increase the number of spots between the extension member 8 and the floor panel 1, but this may cause issues such as the weight of the entire vehicle and the efficiency of assembly work. Difficult to adopt due to
この発明はこのような従来の技術に着目してなされたも
のであり、自動車の重量増を招くことなく、制振性を向
上させることができる自動車のフロア構造を提供せんと
するものである。The present invention has been made with attention to such conventional technology, and it is an object of the present invention to provide a floor structure for an automobile that can improve vibration damping performance without increasing the weight of the automobile.
く課題を解決するための手段〉
この発明に係る自動車のフロア構造は、上記の目的を達
成するために、フロアパネルにおけるフロアトンネル部
左右両側の各平面部に、該各平面部の車幅中央で前後方
向に沿う下向きのビード部を一体形成すると共に該各ビ
ード部近辺に開口部を形成し、且つ前記ビード部の前部
とフロントサイドメンバの後部とを強度部材にて連結し
、前記各平面部上に、前記開口部を少な（とも覆うサブ
フロアパネルを、緩衝材を介在させた状態で取付けたも
のである。Means for Solving the Problem> In order to achieve the above-mentioned object, the automobile floor structure according to the present invention has a structure in which each plane part on both the left and right sides of the floor tunnel part of the floor panel has a groove in the center of the vehicle width of each plane part. A downward bead portion along the front-rear direction is integrally formed with an opening in the vicinity of each bead portion, and the front portion of the bead portion and the rear portion of the front side member are connected by a strength member, and each of the above-mentioned A sub-floor panel that partially covers the opening is attached to the flat surface with a cushioning material interposed therebetween.
く作 用〉
フロアパネルの平面部上に緩衝材を介在させた状態でサ
ブフロアパネルを取付けたので、フロントサイドメンバ
から伝播された振動はこの緩衝材及びサブフロアパネル
にて低減される。すなわち、フロアパネルとサブフロア
パネルとで緩衝材をサンドイッチすることにより全体が
一種の複合系の制振構造となるため、一方のフロアパネ
ル或いは他方のサブフロアパネルが振動しても、互いに
相手方の振動を弱め合うことができる。Function> Since the sub-floor panel is attached with a cushioning material interposed on the flat surface of the floor panel, vibrations propagated from the front side member are reduced by this cushioning material and the sub-floor panel. In other words, by sandwiching the cushioning material between the floor panel and the sub-floor panel, the whole becomes a kind of composite vibration-damping structure, so even if one floor panel or the other sub-floor panel vibrates, each other will not absorb the vibration of the other. They can weaken each other.
また、フロアパネルの平面部に該平面部の車幅中央で前
後方向に延びる下向きのビード部を一体的に形成したこ
とと、このビート部の前部とフロアサイドメンバの後部
とを強度部材にて連結したことにより、フロアパネルの
強度も向上する。すなわち、従来のように別物の延長部
材を取付けたのでなく、フロアパネル自体に補強部材と
なるビード部を一体的に形成したので、フロアパネルの
強度か確実に向上する。更に、このビード部近辺に開口
部を形成することにより、フロアパネル全体の重量増の
防止も図られている。In addition, a downward bead extending in the front-rear direction is integrally formed on the flat part of the floor panel at the center of the vehicle width of the flat part, and the front part of this bead part and the rear part of the floor side member are made into strength members. By connecting them together, the strength of the floor panel is also improved. That is, since a bead portion serving as a reinforcing member is integrally formed on the floor panel itself, instead of attaching a separate extension member as in the conventional case, the strength of the floor panel is reliably improved. Furthermore, by forming an opening in the vicinity of this bead, an increase in the weight of the entire floor panel can be prevented.
く実 施 例〉
以下、この発明の好適な一実施例を第１図及び第２図に
基づいて説明する。尚、従来と同様にフロアパネルの左
側部分だけを代表して図示すると共に、従来と共通する
部分には同一の符号を付し、重複する説明は省略する。Embodiment A preferred embodiment of the present invention will be described below with reference to FIGS. 1 and 2. Note that, as in the conventional case, only the left side portion of the floor panel is illustrated as a representative, and the same parts as in the conventional case are given the same reference numerals, and redundant explanation will be omitted.
この実施例に係るフロアパネル９の各平面部１０には、
その車幅中央で前後方向Ｘに沿う下向きのビード部１１
が一体形成されている。そして、各平面部１０における
ビード部１１の左右両側には、概略長方形の開口部１２
．１３がそれぞれ形成されている。この開口部１２．１
３の周囲には、各開口部１２．１３を取り囲むように所
定幅の凹部１４が各々形成されている。この凹部１４は
、ビード部１１側においては段部形状となっており、そ
の他の部分においては溝形状となっている。そして、こ
の凹部１４内に「緩衝材」としてのラバー１５が、それ
ぞれ上面部を平面部１０の上面から上方へ若干突出させ
た状態で設けられている。Each plane part 10 of the floor panel 9 according to this embodiment includes:
A downward bead portion 11 along the longitudinal direction X at the center of the vehicle width
are integrally formed. Approximately rectangular openings 12 are provided on both the left and right sides of the bead portion 11 in each plane portion 10.
．． 13 are formed respectively. This opening 12.1
A recess 14 having a predetermined width is formed around each opening 12, 13 so as to surround each opening 12, 13. This recess 14 has a stepped shape on the bead portion 11 side, and has a groove shape on the other portions. Rubbers 15 serving as "buffer materials" are provided in the recesses 14 with their upper surfaces slightly protruding upward from the upper surface of the flat portion 10.
１６はサブフロアパネルで、２つの開口部１２、Ｉ３と
ビード部１１とを一度に覆える全体サイズを備えている
と共に、各開口部１２．１３に相応する形状の浅い凹み
１７が形成されている。この凹み１７部分が前記開口部
］２．１３内へ入り込むことにより、サブフロアパネル
１６とフロアパネル９との位置ずれは防止される。Reference numeral 16 denotes a sub-floor panel, which has an overall size that can cover the two openings 12, I3 and the bead portion 11 at once, and has shallow recesses 17 formed in shapes corresponding to the respective openings 12 and 13. . By entering the recess 17 into the opening 2.13, misalignment between the sub-floor panel 16 and the floor panel 9 is prevented.
そして、１８は強度部材で、従来の延長部材を短くした
如き形状を呈している。この強度部材１８によりフロン
トサイドメンバ６の後部と、前記ビード部１１の前部と
が連結され、車体全体の剛性確保を担っている。すなわ
ち、この強度部材１８の前端１８ａは従来通りフロント
サイドメンバ６の下面に溶接され、後端は略相似断面形
状とされた前記ビード部１１の前部を、その内側に内包
した密着状態で溶接される。特に、強度部材１８とビー
ド部１１との結合強度は強く、これらか−体化して従来
の延長部材に相当する機能を果たしている。A strength member 18 has a shape similar to a shortened conventional extension member. This strength member 18 connects the rear portion of the front side member 6 and the front portion of the bead portion 11, and serves to ensure the rigidity of the entire vehicle body. That is, the front end 18a of this strength member 18 is welded to the lower surface of the front side member 6 as before, and the rear end is welded in a tight state that includes the front part of the bead part 11, which has a substantially similar cross-sectional shape. be done. In particular, the strength of the bond between the strength member 18 and the bead portion 11 is strong, and the combination of these members functions as a conventional extension member.
この実施例のフロアはこのような構造をしてし）ること
により、以下のような点に優れる。The floor of this embodiment has the following structure and has the following advantages.
フロアパネルの制振効果
エンジンやサスペンションの振動がフロントサイトメン
バ６や強度部材１８を伝わって、フロアパネル９に伝播
されても、このフロアパネル９には「緩衝材」としての
ラバー１５を介してサブフロアパネル１６があてがわれ
ているので、前記振動は低減する。即ち、フロアノくネ
ル９とサブフロアパネル１６とでラバー１５をサントイ
・ソチすることにより、全体が一種の複合系の制振構造
となるため、一方のフロアパネルが振動しようとしても
、他方のラバー１５を介したサブフロアパネル１６によ
り弱められることとなる。Vibration damping effect of the floor panel Even if the vibrations of the engine and suspension are transmitted through the front sight member 6 and the strength member 18 and propagated to the floor panel 9, there is no vibration in the floor panel 9 via the rubber 15 as a "buffer material". Since the sub-floor panel 16 is provided, the vibrations are reduced. In other words, the rubber 15 is sandwiched between the floor panel 9 and the sub-floor panel 16, so that the whole becomes a kind of composite vibration damping structure, so even if one floor panel tries to vibrate, the other rubber 15 It will be weakened by the sub-floor panel 16 through which it is connected.
フロアパネルの強度向上
フロアパネル９にビード部１１を一体的に形成したこと
と、このビード部１１の前部とフロントサイドメンバ６
の後部とを強度部材１８にて連結したことにより、フロ
アパネル９の全体的な強度が向上する。即ち、フロアパ
ネル９自体に補強部材となるビード部１１を一体的に形
成したので、従来のよ・うに別物の延長部材を取付けた
場合とは異なり、補強部材（ビート部１１）とフロアパ
ネル９との一体性が完全で全体的な強度か強くなり、自
動車の衝突等によって前後方向における強い衝撃がフロ
ントサイドメンバ６及び強度部材１８を介してフロアパ
ネル９に加わったとしても、確実に受は止めることがで
きる。Improving the strength of the floor panel The bead portion 11 is integrally formed on the floor panel 9, and the front portion of the bead portion 11 and the front side member 6
By connecting the rear part of the floor panel 9 with the strength member 18, the overall strength of the floor panel 9 is improved. That is, since the bead portion 11 serving as a reinforcing member is integrally formed on the floor panel 9 itself, unlike the conventional case where a separate extension member is attached, the reinforcing member (the bead portion 11) and the floor panel 9 The structure is completely integrated with the floor panel 9 and the overall strength is strong, so that even if a strong front-back impact is applied to the floor panel 9 through the front side member 6 and the strength member 18 due to a car collision, etc., the floor panel 9 will be able to withstand it. It can be stopped.
作業性の向上
ビード部１１の左右両側にそれぞれ開口部１２．１３が
形成されているために、この開口部１２．１３から工具
等を入れて、強度部材１８とビード部１１との溶接作業
などを行ったりすることができるので作業性が良い。Improved workability Since openings 12.13 are formed on both the left and right sides of the bead portion 11, tools etc. can be inserted through these openings 12.13 to perform welding work between the strength member 18 and the bead portion 11. It has good workability as it allows you to do the following.
その他
更に、この開口部１２．１３を設けたことにより、フロ
アパネル９とサブフロアパネル１６の２枚を用いたフロ
ア構造でありながら、全体の重量増の防止も図られてい
る。Furthermore, by providing the openings 12 and 13, an increase in overall weight can be prevented even though the floor structure uses two panels, the floor panel 9 and the sub-floor panel 16.
加えて、フロアパネル９とサブフロアパネル１６とに別
れているため、例えばフロアパネル９だけの板厚を大き
くして、ビード部１１の更なる強度向上を図ったり、或
いはフロアトンネル部内に通常取付けられるレイフォー
ス等を廃止したりすることもできる。逆に、サブフロア
パネル１６の方の板厚を大きくすることも自由である。In addition, since the floor panel 9 and sub-floor panel 16 are separated, for example, the thickness of only the floor panel 9 can be increased to further improve the strength of the bead section 11, or it can be normally installed inside the floor tunnel section. It is also possible to abolish Rayforce, etc. Conversely, it is also possible to increase the thickness of the sub-floor panel 16.
〈発明の効果〉
この発明に係る自動車のフロア構造は、以上説明してい
た如き内容のものであって、フロアパネルの平面部上に
緩衝材を介在させた状態でサブフロアパネルを取付けた
ので、フロアパネルの制振性の向上を図ることができる
。<Effects of the Invention> The automobile floor structure according to the present invention has the content as explained above, and since the sub-floor panel is attached with a cushioning material interposed on the flat part of the floor panel, It is possible to improve the vibration damping properties of the floor panel.
また、フロアパネルの平面部に該平面部の車幅中央で前
後方向に延びる下向きのビード部を一体的に形成し、且
つこのビード部の前部とフロアサイドメンバの後部とを
強度部材にて連結したので、フロアパネルの全体的な強
度も向上する。In addition, a downward bead extending in the longitudinal direction at the center of the vehicle width of the flat part is integrally formed on the flat part of the floor panel, and the front part of this bead part and the rear part of the floor side member are connected with a strength member. Since they are connected, the overall strength of the floor panel is also improved.
第１図はこの発明の一実施例に係る自動車のフロア構造
を示す斜視図、
第２図は第１図中矢示■−■線に沿う断面図、そして
第３図は従来の自動車のフロア構造を示す斜視図である
。
２ ゛フロアトンネル部
９ ° フロアパネル
１０−゛ 平面部
１１ ゛ ビード部
１２．１３−゛ 開口部
１５− ラバー（緩衝材）
１６− サブフロアパネル
１８−° 強度部材FIG. 1 is a perspective view showing the floor structure of an automobile according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line indicated by the arrows in FIG. 1, and FIG. 3 is a conventional automobile floor structure. FIG. 2 ゛Floor tunnel section 9° Floor panel 10-゛ Plane section 11 ゛ Bead section 12.13-゛ Opening 15- Rubber (buffer material) 16- Sub-floor panel 18-° Strength member
Claims (1)
面部に、該各平面部の車幅中央で前後方向に沿う下向き
のビード部を一体形成すると共に該各ビード部近辺に開
口部を形成し、且つ 前記ビード部の前部とフロントサイドメンバの後部とを
強度部材にて連結し、 前記各平面部上に、前記開口部を少なくとも覆うサブフ
ロアパネルを、緩衝材を介在させた状態で取付けたこと
を特徴とする自動車のフロア構造。[Scope of Claims] A downward bead portion extending in the front-rear direction at the center of the vehicle width of each flat portion is integrally formed on each flat portion on both the left and right sides of the floor tunnel portion of the floor panel, and an opening is formed near each bead portion. , and the front part of the bead part and the rear part of the front side member are connected by a strength member, and a sub-floor panel covering at least the opening part is provided on each of the flat parts with a cushioning material interposed therebetween. An automobile floor structure characterized by being attached with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9920990A JPH042581A (en) | 1990-04-17 | 1990-04-17 | Floor structure for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9920990A JPH042581A (en) | 1990-04-17 | 1990-04-17 | Floor structure for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH042581A true JPH042581A (en) | 1992-01-07 |
Family
ID=14241264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9920990A Pending JPH042581A (en) | 1990-04-17 | 1990-04-17 | Floor structure for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH042581A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011074527A1 (en) * | 2009-12-16 | 2011-06-23 | 本田技研工業株式会社 | Vehicle body floor structure |
| JP2022103627A (en) * | 2020-12-28 | 2022-07-08 | スズキ株式会社 | Vehicle lower part structure |
-
1990
- 1990-04-17 JP JP9920990A patent/JPH042581A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011074527A1 (en) * | 2009-12-16 | 2011-06-23 | 本田技研工業株式会社 | Vehicle body floor structure |
| CN102656080A (en) * | 2009-12-16 | 2012-09-05 | 本田技研工业株式会社 | Underbody Construction |
| JP5352682B2 (en) * | 2009-12-16 | 2013-11-27 | 本田技研工業株式会社 | Body floor structure |
| US8668252B2 (en) | 2009-12-16 | 2014-03-11 | Honda Motor Co., Ltd. | Vehicle body floor structure |
| JP2022103627A (en) * | 2020-12-28 | 2022-07-08 | スズキ株式会社 | Vehicle lower part structure |
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