FR2556684A3 - Aerodynamic deflector, particularly for a motor vehicle - Google Patents
Aerodynamic deflector, particularly for a motor vehicle Download PDFInfo
- Publication number
- FR2556684A3 FR2556684A3 FR8418409A FR8418409A FR2556684A3 FR 2556684 A3 FR2556684 A3 FR 2556684A3 FR 8418409 A FR8418409 A FR 8418409A FR 8418409 A FR8418409 A FR 8418409A FR 2556684 A3 FR2556684 A3 FR 2556684A3
- Authority
- FR
- France
- Prior art keywords
- deflector
- housing
- motor vehicle
- vehicle
- receive
- 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.)
- Granted
Links
- 229920002635 polyurethane Polymers 0.000 claims abstract description 7
- 239000004814 polyurethane Substances 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims abstract description 3
- 239000000872 buffer Substances 0.000 claims description 4
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 5
- 229920001971 elastomer Polymers 0.000 abstract description 2
- 239000000806 elastomer Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000007787 solid Substances 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
- B62D35/007—Rear spoilers
-
- 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
- Y02T10/82—Elements for improving aerodynamics
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
Description
Déflecteur aérodynamique, en particulier pour véhicule automobile.Aerodynamic deflector, in particular for a motor vehicle.
La présente invention concerne un déflecteur aérodynamique pour véhicule automobile, en particulier pour voiture, cosemu- nément appelé "spoiler" et destiné à etre installé sur la carrosserie, en particulier sur la partie postérieure de celle-ci, pour dévier les filets de coursant fluide afin d'améliorer le coefficient de pénétration aérodynamique et/ ou l'adhérence du véhicule en marche.The present invention relates to an aerodynamic deflector for a motor vehicle, in particular for a car, collectively known as a "spoiler" and intended to be installed on the bodywork, in particular on the rear part thereof, for deflecting the fluid current nets. in order to improve the aerodynamic penetration coefficient and / or the grip of the moving vehicle.
Actuellement, les "spoilers" de ce type sont réalisés en polyuréthane microcellulaire souple et incluent, générale- ment noyés par surmoulage, des inserts métalliques propres à permettre leur assemblage à la carrosserie
Le recours au polyuréthane microcellulaire est dicté par l'exigence de légèreté. Toutefois, étant donné la souplesse de ce matériau, le produit résultant présente une céformabi- lité marquée et indésirable et, d'autre part, la présence ries inserts métalliques pour la fixation à la carrosserie rend pratiquement inutiles les caractéristiques de légèreté dues au choix du matériau. En outre, étant donne la déformabilité du polyréthane microcellulaire,les "spoilers' du type connu sont de structure plein, ce qui complique les opérations de ulage an raison des dimensions du produit et des retraits de moulage importants qui en résultent. Currently, "spoilers" of this type are made of flexible microcellular polyurethane and generally include metal inserts suitable for their assembly to the bodywork.
The use of microcellular polyurethane is dictated by the requirement for lightness. However, given the flexibility of this material, the resulting product exhibits marked and undesirable ceformability and, on the other hand, the presence of metallic inserts for fixing to the body makes the lightness characteristics due to the choice of the material practically useless. material. In addition, given the deformability of the microcellular polyurethane, the "spoilers" of the known type are of solid structure, which complicates the operations of aging due to the dimensions of the product and the significant molding shrinkages which result therefrom.
La présente.invention vise à éliminer ces inconvénients.The present invention aims to eliminate these drawbacks.
A cet effet est prévu un déflecteur aérodynamique destiné à l'usage défini ci-dessus, formé de polyuréthane rigide et présentant une section canaliforme continue interrompue par des cloisons également espacées dans chacune desquelles est formé un logement en contre-dépouille destiné à recevoir un tampon en matériau élastomère, dont le profil est conjugué de
celui du logement, portant un boulon prisonnier correspondant servant à assembler le déflecteur à la carrosserie du véhicule.For this purpose, an aerodynamic deflector intended for the use defined above is provided, formed of rigid polyurethane and having a continuous canaliform section interrupted by partitions equally spaced in each of which is formed an undercut housing intended to receive a pad. made of elastomeric material, the profile of which is
that of the housing, carrying a corresponding captive bolt used to assemble the deflector to the vehicle body.
D'autres caractéristiques de l'invention ressortiront de la description détaillée qui suit et des dessins annexés, dans lesquels - la figure 1 est une vue en perspective du déflecteur, - a figure 2 est une vue en coupe selon la ligne 2-2 de la figure 1, à plus grande échelle; et - la figure 3 est une vue en coupe analogue selon la ligne 3-3 de la figure 1.Other characteristics of the invention will emerge from the detailed description which follows and from the appended drawings, in which - FIG. 1 is a perspective view of the deflector, - FIG. 2 is a sectional view along line 2-2 of Figure 1, on a larger scale; and - Figure 3 is a similar sectional view along line 3-3 of Figure 1.
Dans les dessins, le déflecteur, indiqué généralement par la référence S, est obtenu comme pièce moulée unique, par toute technique connue appropriée au but visé , en polyuréthane rigide de haute densité. Le produit résultant a des caractéristiques mécaniques de rigidité propres à le rendre autoportant grace à l'indéformabilité substantielle de ce matés riau. Ceci permet de donner au déflecteur une structure rationnelle, en lui conférant la forme d'un canal continu C, avec ses avantages évidents de légèreté et aussi de résistance principalement à -la flexion. Le canal C est interrompu par des parois ST également espacées dans chacune desquell.es est formé un logement en contre-dépouille SE destiné à recevoir un tampon correspondant T ayant un profil conjugue de celui du logement. Chaque tampon est avantageusement réalisé en matériau élastomère, de préférence en caoutchouc,et porte un boulon prisonnier BL propre à permettre l'assemblage du déflecteur à la carrosserie K du véhicule.In the drawings, the deflector, generally indicated by the reference S, is obtained as a single molded part, by any known technique suitable for the intended purpose, in high density rigid polyurethane. The resulting product has mechanical rigidity characteristics which make it self-supporting thanks to the substantial undeformability of this material. This makes it possible to give the deflector a rational structure, by giving it the shape of a continuous channel C, with its obvious advantages of lightness and also of resistance mainly to bending. The channel C is interrupted by walls ST also spaced in each of which is formed a housing undercut SE intended to receive a corresponding buffer T having a profile combined with that of the housing. Each pad is advantageously made of elastomeric material, preferably rubber, and carries a captive bolt BL suitable for allowing the assembly of the deflector to the bodywork K of the vehicle.
Les tampons T sont incorporés dans les logements correspondants SE par surmoulage mais peuvent aussi être forcés après coup, avec encliquetage, dans le logement préformé par moulage, en mettant à profit la déformabilité du matériau élastomère dont ils sont faits.The buffers T are incorporated into the corresponding housings SE by overmolding but can also be forced afterwards, with snap-fastening, into the housing preformed by molding, taking advantage of the deformability of the elastomeric material from which they are made.
L'invention n'est pas limitée à la réalisation décrite, mais s'étend aux réalisations qui utilisent le même concept inventif et conduisent aux mêmes avantages. The invention is not limited to the embodiment described, but extends to embodiments which use the same inventive concept and lead to the same advantages.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT5404083 | 1983-12-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2556684A3 true FR2556684A3 (en) | 1985-06-21 |
| FR2556684B3 FR2556684B3 (en) | 1986-04-11 |
Family
ID=11286467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8418409A Expired FR2556684B3 (en) | 1983-12-14 | 1984-12-03 | AERODYNAMIC DEFLECTOR, PARTICULARLY FOR A MOTOR VEHICLE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2556684B3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0294011A1 (en) * | 1987-05-11 | 1988-12-07 | Ladney, Michael, Jr. | Spoiler construction and method |
| US7252324B1 (en) * | 2006-08-02 | 2007-08-07 | Moya International Co., Ltd. | Spoiler for vehicles and manufacturing method thereof |
-
1984
- 1984-12-03 FR FR8418409A patent/FR2556684B3/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0294011A1 (en) * | 1987-05-11 | 1988-12-07 | Ladney, Michael, Jr. | Spoiler construction and method |
| US7252324B1 (en) * | 2006-08-02 | 2007-08-07 | Moya International Co., Ltd. | Spoiler for vehicles and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2556684B3 (en) | 1986-04-11 |
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