JPS58211976A - Underside structure of car floor - Google Patents

Underside structure of car floor

Info

Publication number
JPS58211976A
JPS58211976A JP9303982A JP9303982A JPS58211976A JP S58211976 A JPS58211976 A JP S58211976A JP 9303982 A JP9303982 A JP 9303982A JP 9303982 A JP9303982 A JP 9303982A JP S58211976 A JPS58211976 A JP S58211976A
Authority
JP
Japan
Prior art keywords
cover
floor
tube
prevented
underside
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
Application number
JP9303982A
Other languages
Japanese (ja)
Inventor
Atsushi Shitsuda
志津田　篤
Yukinori Nakamura
中村　幸紀
Yuji Shinpo
新保　雄二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP9303982A priority Critical patent/JPS58211976A/en
Publication of JPS58211976A publication Critical patent/JPS58211976A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B62D25/02—Side panels
    • B62D25/025—Side sills thereof
    • 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
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

PURPOSE:To promote running stability while satisfying the demand of cost down by covering a very uneven part present on the lower face of the floor, with a cover from the underside, to lessen the air resistance. CONSTITUTION:A cover 6 is provided not to expose a propeller shaft 2 outside, especially to shut out air stream disturbance following the rotation of the shaft 2. A stream line is formed below the floor. As an exhaust tube 3 is also covered by te cover 6, accordingly raising of the fuel temperature in a fuel tube 9 caused by exhaust heat of the exhaust tube 3 is prevented, and vapor lock can be prevented in advance. As the whole tunnel part 4 is blocked out by a cover 6, rust to be generated on the tipping etc. of the tunnel part 4, can be prevented. Moreover, car noise can be reduced by blocking out the rotational noise of a propeller shaft 2.

Description

【発明の詳細な説明】 本発明は自動車のフロア下面構造に関する。[Detailed description of the invention] The present invention relates to a lower floor structure of an automobile.

一般に、自動車のフロア下面には種々の部材が設けられ
ているため、この部材の配設箇所に合わせてフロア下面
が凹凸状に形成されていたり、まな部材自体の配役によ
ってもフロア下面が凹凸状となる場合が多かったが、従
来はこれらの部材が外部に露出している構造となってい
た。Generally, various members are installed on the underside of the floor of an automobile, so the underside of the floor is formed into an uneven shape depending on the location where these members are installed, and the underside of the floor is also uneven due to the arrangement of the main parts themselves. However, in the past, these members were exposed to the outside.

しかしながら、このように部材が露出している構造にあ
っては、フロア下面の凹凸形状やプロペラシャフトの回
転に影響されて、走行時にフロア下面と地面との贋の空
気の流れが乱れ空気抵、抗が大きくなるという問題があ
った。また、空気抵抗の増大により、自動車のルーフ部
に比べてフロア部の方が空気圧が高くなるために、特に
高速走行時において上方への揚力が発生し、走行安定性
に悪影響を与えるという問題もあった。上記問題の解決
手段として、例えば、フロア下面の全域分力バーで覆い
隠してしまうことも考えられるが、このようにするとコ
スト高となってしまい、低廉化の要請に沿わないという
問題点があった。However, with a structure in which parts are exposed like this, the unevenness of the underside of the floor and the rotation of the propeller shaft can disrupt the flow of air between the underside of the floor and the ground during driving, resulting in air resistance, There was a problem that resistance increased. Additionally, due to increased air resistance, air pressure is higher on the floor of a car than on the roof, which creates upward lift, especially when driving at high speeds, which adversely affects driving stability. there were. As a solution to the above problem, for example, it may be possible to cover the entire area with a force component bar on the underside of the floor, but this would result in high costs and would not meet the demand for lower prices. Ta.

本発明は上記従来の問題点に着目してなされたものであ
り、その目的とするところは、フロア下面に設けられた
部材の特に凹凸の激しい一部を下方側からカバーで覆う
ことにより、コスト低廉化の要請を満足しつつ、上記技
術的問題の解決を図ったことにある。　　゛ 以下添付図面に示す実施例に基いて本発８Ａｆ！：□　
詳細に説明する。The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to reduce costs by covering a particularly uneven part of the member provided on the lower surface of the floor with a cover from below. The aim is to solve the above technical problems while satisfying the demand for lower prices.゛The following 8Af! :□
Explain in detail.

第１図および第２図に示す第１実施例において、１は下
面中央部にプロペラシャフト２やエキゾーストチューブ
３を配設するために凹状のトンネル部４が車体５の前後
方向に形成されているフロア、６はプロペラシャフト２
とエキゾーストチューブ３とと下方側から覆うようにし
てトンネル部４を閉塞する薄板状のカバーであり、その
両側縁に沿って形成された取付７ランジ７ａ　、　７ｂ
をトンネル、部４の両側フロア面にネジ３ａ　、　３ｂ
固定することによりフワ７１下面に配設される。尚、９
は燃料チューブ、１０はブレーキチューブ、１１ａ　、
　１１ｂはサイドメンバであって、いずれもフロア１下
面において車体５前後方向に延びている部材であり、ま
た、１２ａ　、　１２ｂはフロア１の両側に延びるサイ
ドシルである。In the first embodiment shown in FIGS. 1 and 2, a concave tunnel portion 4 is formed in the front-rear direction of the vehicle body 5 in order to arrange a propeller shaft 2 and an exhaust tube 3 at the center of the lower surface. floor, 6 is propeller shaft 2
and the exhaust tube 3. It is a thin plate-like cover that covers the tunnel part 4 from below and closes the tunnel part 4, and the mounting 7 langes 7a and 7b are formed along both side edges of the cover.
Attach screws 3a and 3b to both sides of the tunnel and the floor surface of section 4.
By fixing it, it is arranged on the lower surface of the fluff 71. Furthermore, 9
is the fuel tube, 10 is the brake tube, 11a,
Reference numeral 11b indicates a side member, which extends in the longitudinal direction of the vehicle body 5 on the lower surface of the floor 1. Reference numerals 12a and 12b indicate side sills extending on both sides of the floor 1.

従って、上記構成からなるフロア下面構造にあってｕ、
プロペラシャフト２が外部には露出していないため、特
にプロペラシャフト２の回転に伴なう空気流の乱れがカ
バー６によって遮断され、フロア下面には整流が形成は
れる。また、エキゾーストチューブ３もカバー６によつ
つて遮蔽されているために、エキゾーストチューブ、３
からの排気熱によって燃料チューブ９内の燃料の温度が
高くなるといった虞れもなくなり、例えば、高温燃料の
エンジン内への供給によって生ずるベーパロック等の不
具合を未然に防止することができる。また、この実施例
に係るフロア下面構造にあっては、トンネル部４全体が
カバー６によって閉塞されているために、チッピング等
に生ずるトンネルｓ４の錆め発生を防止することができ
ると共に、ブ・ロペラシャフト２の回転音を遮蔽して車
体騒音の低減と図ること力；できる。Therefore, in the floor underside structure having the above configuration, u,
Since the propeller shaft 2 is not exposed to the outside, turbulence in the airflow caused by the rotation of the propeller shaft 2 is blocked by the cover 6, and a rectified air flow is formed on the lower surface of the floor. Furthermore, since the exhaust tube 3 is also shielded by the cover 6, the exhaust tube, 3
There is no fear that the temperature of the fuel in the fuel tube 9 will increase due to the exhaust heat from the engine, and for example, problems such as vapor lock caused by supplying high temperature fuel into the engine can be prevented. Further, in the floor underside structure according to this embodiment, since the entire tunnel portion 4 is closed by the cover 6, it is possible to prevent the tunnel s4 from rusting due to chipping, etc. It is possible to reduce the vehicle body noise by shielding the rotation sound of the propeller shaft 2.

第３図は本考案の第２実施例であって、前輪駆動車に適
したフロア下面構造？示したものである。即ち、このタ
イプの正画では、フロア１の中央部、に形成されたトン
ネル部４には遮熱板１３ト介してエキゾーストチューブ
３のみ配設された構造となっているので、先の実施例・
のようなプロペラシャフトの回転によるトンネル部４で
の空気流の乱れは生じない。そのため、この実施例では
トンネル部４の両側に沿って配設逼れるサイドメンバ１
１ａ　、　１１ｂ　、燃料チューブ９およびブレーキチ
ューブ１０を２枚のカッ（−６２１６ｂで覆うことによ
り問題を解決している。各カッく−５ａ　、　５ｂは先
の実施例と同様、車体５前後方向に長く延びる薄板材で
形成されており、左側カバー６３で一方側のサイドメン
バ（１１ａ、燃料チューブ９およびブレーキチューブ１
０を下方側から覆いその両側縁と７０ア１の一側縁部と
遮熱板１３の一側縁部にビスレ、８１）固定し、また右
側カバー６ｂで他方側サイドメンバ１１ｂ゛を下方側か
°ら覆い、左側カバー６ａと同様、その両側縁を７０ア
１と遮熱板１３とにビス固定する。Fig. 3 shows the second embodiment of the present invention, which is a floor underside structure suitable for front-wheel drive vehicles. This is what is shown. In other words, in this type of original image, only the exhaust tube 3 is disposed in the tunnel portion 4 formed in the center of the floor 1 via the heat shield plate 13, so it is different from the previous embodiment.・
The turbulence of the airflow in the tunnel section 4 due to the rotation of the propeller shaft does not occur. Therefore, in this embodiment, side members 1 are disposed along both sides of the tunnel portion 4.
The problem is solved by covering 1a, 11b, fuel tube 9 and brake tube 10 with two cups (-6216b).As in the previous embodiment, each cup -5a, 5b extends in the longitudinal direction of the vehicle body 5. It is formed of a long thin plate material, and the left side cover 63 connects one side member (11a, fuel tube 9 and brake tube 1
0 from below and fix it to both side edges thereof, one side edge of 70A1, and one side edge of heat shield plate 13 (81), and fix the other side member 11b' to the lower side with the right side cover 6b. Then, similarly to the left cover 6a, its both side edges are fixed to the heat shield plate 13 and the heat shield plate 70A1 with screws.

従って、この実施例ではフロア１下面の両測部に配設さ
れる部材がカバー−９６ｂによって覆い隠されるため、
走行時にフロア１下面側に流れ込んでくる走行風がカバ
ー５ａ　、　５ｂの下方側を通って車体５後方へスムー
ズに扱けてしまい、サイドメンバＩｌａ　、　１１ｂや
燃料チューブ、９、ブレーキチューブ１０による空気流
の乱れ？防止することができる。また、この実施例でＣ
１、燃料ガユーブ９とエキゾーストチューブ３とがカッ
（−６ａによって遮断されているので、エキゾースト。Therefore, in this embodiment, since the members disposed on both measuring sections on the lower surface of the floor 1 are covered by the cover 96b,
When driving, the wind flowing into the lower surface of the floor 1 passes through the lower side of the covers 5a and 5b and is smoothly handled to the rear of the vehicle body 5, and the air flows through the side members Ila and 11b, the fuel tube 9, and the brake tube 10. Disturbance of flow? It can be prevented. Also, in this example, C
1. The fuel tube 9 and the exhaust tube 3 are cut off by -6a, so the exhaust.

チューブ３からの排気熱か燃料チューブ９に影響を与え
ることがなく、燃料チューブ９内の燃料温度が高くなる
といった虞れがない。The exhaust heat from the tube 3 does not affect the fuel tube 9, and there is no risk of the fuel temperature in the fuel tube 9 becoming high.

尚、本発明に係るカバーは金属板、又は硬質プラスチッ
ク等の材質で構成され、−１：たその形状も覆い隠す部
材によって適宜設計変更できることは勿論であり、更に
、上記実施例で示した部材に限定されることなく、フロ
ア下面に配設される種々の部材を必要に応じて覆うこと
かできる。It should be noted that the cover according to the present invention is made of a material such as a metal plate or a hard plastic. Without being limited to this, various members disposed under the floor can be covered as necessary.

以上説明したように、本発明に係るフロア下面構造によ
れば、フロア下面に配設芒７する乱打の一部を必要に応
じてダうようにしたから、特に空気抵抗を大きくするよ
うな台す材を揄い隠す７ことにより、コスト低兼化の’
Ｍ　Ｂ　ｂ’ｃ　／ｉ：？いつつ走行安定性を向上させ
ることができるという効果と葵する。As explained above, according to the floor underside structure according to the present invention, a part of the random hits provided on the underside of the floor can be turned off as necessary, so that it is possible to avoid the use of a platform that increases air resistance. By hiding the material7, costs can be reduced.
M B b'c /i:? The effect is that driving stability can be improved at the same time.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は自動車の斜視図、第２図および第３図は本発明
に係るフロア下面構造のそれぞれ別異の実施例を示した
ものであって、第１図中人−Ａ線断面に相当する図であ
る。 １・・・７０ア　　　　　２・・・プロペラシャフト３
・・・エキゾーストチューブ ６．６ａ、６ｂ・・・カバー　９・・・燃料チューブ１
０・・・ブレーキチューブ 特許出願人　　日産自動車株式会社 代理人　弁理士　　土　　橋　　　　時第１図 ぺFig. 1 is a perspective view of an automobile, and Figs. 2 and 3 show different embodiments of the floor underside structure according to the present invention, and correspond to the cross section taken along line A in Fig. 1. This is a diagram. 1...70a 2...Propeller shaft 3
...Exhaust tube 6.6a, 6b...Cover 9...Fuel tube 1
0... Brake tube patent applicant Nissan Motor Co., Ltd. agent Patent attorney Toki Tsuchihashi Figure 1 page

Claims (1)

【特許請求の範囲】[Claims] フロア下面に部材が設けられた構造において、前記部材
の一部を下方側から覆い隠すカバーをフロア下面に配設
したことと特徴とする自動車のフロア下面構造。1. An underfloor structure for an automobile, characterized in that, in the structure in which a member is provided on the underside of the floor, a cover is disposed on the underside of the floor to cover a part of the member from below.
JP9303982A 1982-06-02 1982-06-02 Underside structure of car floor Pending JPS58211976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9303982A JPS58211976A (en) 1982-06-02 1982-06-02 Underside structure of car floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9303982A JPS58211976A (en) 1982-06-02 1982-06-02 Underside structure of car floor

Publications (1)

Publication Number Publication Date
JPS58211976A true JPS58211976A (en) 1983-12-09

Family

ID=14071349

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9303982A Pending JPS58211976A (en) 1982-06-02 1982-06-02 Underside structure of car floor

Country Status (1)

Country Link
JP (1) JPS58211976A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60130185U (en) * 1984-02-10 1985-08-31 三菱自動車工業株式会社 Vehicle undercover mounting structure
DE3525036A1 (en) * 1985-07-13 1987-01-15 Audi Ag Device for covering a recessed area of the underbody of a motor vehicle
US4842193A (en) * 1987-01-23 1989-06-27 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Floor group for a vehicle, especially for a motor vehicle
FR2761040A1 (en) * 1997-03-24 1998-09-25 Honda Motor Co Ltd VEHICLE FLOOR STRUCTURE
US5813491A (en) * 1995-03-07 1998-09-29 Nissan Motor Co., Ltd. Under body structure of motor vehicle
US6663171B2 (en) * 2001-06-06 2003-12-16 Honda Giken Kogyo Kabushiki Kaisha Heat insulator apparatus for vehicle floor
EP1564076A1 (en) * 2004-02-10 2005-08-17 Faurecia Automotive Industrie Door sill for a vehicle, sub assembly for a passenger compartment and corresponding realisation method, and double shell false floor
JP2007161024A (en) * 2005-12-12 2007-06-28 Toyota Motor Corp Piping structure of vehicle
EP1897741A3 (en) * 2006-08-30 2009-11-18 Toyota Jidosha Kabushiki Kaisha Vehicle body mounting structure for exhaust system heat exchanger
JP2010215200A (en) * 2009-03-19 2010-09-30 Toyota Motor Corp Vehicle body structure
JP2013139179A (en) * 2011-12-28 2013-07-18 Daihatsu Motor Co Ltd Undercover
KR101316205B1 (en) * 2011-12-02 2013-10-08 현대자동차주식회사 Vehicle Body Structure With Integral Type Muffler
JP2014125071A (en) * 2012-12-26 2014-07-07 Daihatsu Motor Co Ltd Lower part vehicle body structure for vehicle

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60130185U (en) * 1984-02-10 1985-08-31 三菱自動車工業株式会社 Vehicle undercover mounting structure
DE3525036A1 (en) * 1985-07-13 1987-01-15 Audi Ag Device for covering a recessed area of the underbody of a motor vehicle
US4842193A (en) * 1987-01-23 1989-06-27 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Floor group for a vehicle, especially for a motor vehicle
US5813491A (en) * 1995-03-07 1998-09-29 Nissan Motor Co., Ltd. Under body structure of motor vehicle
FR2761040A1 (en) * 1997-03-24 1998-09-25 Honda Motor Co Ltd VEHICLE FLOOR STRUCTURE
US6663171B2 (en) * 2001-06-06 2003-12-16 Honda Giken Kogyo Kabushiki Kaisha Heat insulator apparatus for vehicle floor
EP1564076A1 (en) * 2004-02-10 2005-08-17 Faurecia Automotive Industrie Door sill for a vehicle, sub assembly for a passenger compartment and corresponding realisation method, and double shell false floor
JP2007161024A (en) * 2005-12-12 2007-06-28 Toyota Motor Corp Piping structure of vehicle
EP1897741A3 (en) * 2006-08-30 2009-11-18 Toyota Jidosha Kabushiki Kaisha Vehicle body mounting structure for exhaust system heat exchanger
US8225899B2 (en) 2006-08-30 2012-07-24 Toyota Jidosha Kabushiki Kaisha Vehicle body mounting structure for exhaust system heat exchanger
JP2010215200A (en) * 2009-03-19 2010-09-30 Toyota Motor Corp Vehicle body structure
KR101316205B1 (en) * 2011-12-02 2013-10-08 현대자동차주식회사 Vehicle Body Structure With Integral Type Muffler
JP2013139179A (en) * 2011-12-28 2013-07-18 Daihatsu Motor Co Ltd Undercover
JP2014125071A (en) * 2012-12-26 2014-07-07 Daihatsu Motor Co Ltd Lower part vehicle body structure for vehicle

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