EP0357651A1 - Procede pour renforcer le chassis metallique, notamment le bas de caisse, de voitures de tourisme - Google Patents

Procede pour renforcer le chassis metallique, notamment le bas de caisse, de voitures de tourisme

Info

Publication number
EP0357651A1
EP0357651A1 EP88903789A EP88903789A EP0357651A1 EP 0357651 A1 EP0357651 A1 EP 0357651A1 EP 88903789 A EP88903789 A EP 88903789A EP 88903789 A EP88903789 A EP 88903789A EP 0357651 A1 EP0357651 A1 EP 0357651A1
Authority
EP
European Patent Office
Prior art keywords
chassis
cavity
synthetic resin
plastic
material web
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
EP88903789A
Other languages
German (de)
English (en)
Inventor
Harry Apprich
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19873713302 external-priority patent/DE3713302A1/de
Application filed by Individual filed Critical Individual
Publication of EP0357651A1 publication Critical patent/EP0357651A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material

Definitions

  • the invention relates to a method for stiffening the metallic chassis, in particular the floor assembly of passenger cars.
  • the invention has for its object to provide a novel method for stiffening passenger cars - which does not require a roof structure, roll bar or the like.
  • the object is achieved by the following steps:
  • the inside of the chassis, in particular the base assembly, is coated with an absorbent, textile material; - 2 -
  • FIG. 1 shows the coated inside of a motor vehicle chassis.
  • Figure 2 is a sectional view taken along line 2-2.
  • FIG. 3 is a perspective view of a convertible
  • FIG. 4 schematically shows the inside of a motor vehicle chassis coated with a plastic-impregnated material web
  • Fig. 5 is a sectional view of a cavity of the chassis
  • Fig. 6 shows the lined and stiffened cavity.
  • 1 shows the inside of a metallic chassis 1, in particular the floor assembly 2 for a passenger car in the form of a convertible.
  • the entire inside is, cf. also the sectional view according to FIG. 2, covered with a stiffening covering 3, which makes it possible to dispense with the roof construction or a roll bar otherwise prescribed for passenger cars.
  • the stiffening covering is applied in the following manner: First, the inside of the chassis, which may have been cleaned beforehand, is coated with an absorbent, textile material, for example a * woven, knitted or knitted material or a nonwoven.
  • the textile material can consist of idramid, polyester, polyamide, carbon and / or glass fiber, that is to say in particular also comprise a mixture of such fibers.
  • a flowable, hardenable synthetic resin Epoxy, polyester or polyurethane resins are suitable.
  • the impregnated textile material is then positively pressed onto the inner surface structure of the chassis while exerting pressure, so that it firmly connects to this, whereby the resin impregnation can also cause the impregnated textile material to bond to the surface of the chassis prepared for this purpose, in particular can be coated.
  • the synthetic resin in the textile material is allowed to harden under pressure, thereby stiffening the entire chassis.
  • the pressure exerted on the material impregnated with synthetic resin is advantageously carried out in the following manner: the side, in the door area in particular, is sealed with the chassis, which is impregnated with synthetic resin, textile material on the inside, with a preferably aqueous suspension of sand, mud or the like and allows a pressure to act on the top of this suspension by means of a flat pressure pad, the pressure pad being supported on its side opposite the suspension by a corresponding frame. Because of the pressure generated in this way, the synthetic resin-impregnated textile material fits positively on the surface of the chassis.
  • the curing of the synthetic resin is preferably also carried out under pressure.
  • the fibers of the material can be chemically impregnated.
  • the impregnation, exertion of pressure and curing of the synthetic resin in the textile material can take place at elevated or at room temperature, depending on the type of resin used.
  • the hardened plastic in the textile material can be tempered at elevated temperature.
  • the method described is primarily suitable for stiffening convertibles in which a roll bar is to be eliminated. In general, however, the method described is suitable for the stiffening of the chassis in all passenger cars, but primarily those without a stiffening roof structure are intended, for example the convertible 5 shown in FIG. 3.
  • an intermediate layer can be introduced between the resin-impregnated material and the chassis, for example in the following way:
  • the inside of the chassis is covered with a fleece or felt layer of 1 to 2 mm in thickness before the textile material is introduced.
  • the textile material is then applied and the process continues as described above.
  • the covering formed by the textile material and the resin is removed from the mold and removed from the chassis.
  • an adhesive which takes the place of the fleece or felt layer is introduced onto the stiffening covering and / or the inside of the chassis, if appropriate after application of an adhesive base.
  • the textile material soaked in resin is then used again.
  • a polyurethane adhesive one-component adhesive
  • This adhesive is selected according to the desired degree of stiffening of the chassis, with an appropriately elastic and appropriately soft or hard adhesive being selected. As a result, the degree of stiffening can be controlled within wide limits.
  • the method described above is essentially suitable for freely exposed, easily accessible surfaces of the chassis, in particular in the floor assembly of the motor vehicle. Methods are described below which are designed such that they are also suitable for cavities in the motor vehicle chassis, in particular for cavities in the area of the sill, for A, B and C pillars in the door area, for cardan tunnels and the same.
  • FIG. 4 shows the inside and side of a metallic chassis 11, in particular the floor assembly 12 for a passenger car in the form of a convertible.
  • the entire inside is covered with a plastic-impregnated, stiffening material web 13.
  • the chassis 11 has cavities, for example a cavity 14 running essentially horizontally and parallel to the longitudinal axis of the chassis in the area of the rocker panel, two approximately vertical cavities 15 in the area of the A-pillar and a cavity 16 which is open at the bottom Area of the cardan tunnel.
  • cavities can also be provided elsewhere, for example in the area of B and C pillars. These cavities are open on at least one, preferably two end faces and are therefore accessible from the outside.
  • the synthetic resin-impregnated material web 17 unrolls and presses positively against the inner surfaces of the cavity 14.
  • the synthetic resin is then allowed to harden under pressure and the relaxed tube 18 is then pulled out of the cavity.
  • the cavity 14 lined and stiffened by the resin-impregnated material web 17 is shown in FIG. 6.
  • This method can be applied to all around closed cavities that are open at both ends, such as the cavity 14 in the sill area. Cavities open only on one end face can be lined with the material web 17 in this way. Cavities open on one side, such as the cardan tunnel 16, can also be lined internally in this way.
  • the width of the Werkstoffbahn17 S o is dimensioned such that edges are flush with each other.
  • the edge regions of the material web 17 in the cavity to be lined can also overlap completely or partially. This does not impair the degree of stiffening, but rather increases it.
  • the plastic-impregnated material web 17 will adhere firmly to the inside of the cavity 14 with unevenness and the like. If necessary, an adhesive can also be applied before the material web is introduced.
  • the textile material web 17 can consist of aramid, polyester, polyamide, carbon and / or glass fibers. It can be woven, knitted or knitted. The fibers of the textile material web can also be chemically impregnated to increase their absorbency in relation to the plastic that penetrates them.
  • the flowable synthetic resins with which the works web 17 is impregnated are primarily epoxy, polyester or polyurethane resins.
  • the application of pressure with the aid of the hose 18 to the plastic-impregnated material web 17 and / or the curing of the plastic can be carried out at room temperature or at an elevated temperature.
  • the cured synthetic resin can then also be annealed at an elevated temperature.
  • the inflatable tube 1_ dispense.
  • the hose will replaced by a mass of expanding plastic which, during its expansion, unrolls the material web 17 in the same way as the hose 18 above and presses it positively against the inner surfaces of the cavity under pressure.
  • a mass of expanding plastic which, during its expansion, unrolls the material web 17 in the same way as the hose 18 above and presses it positively against the inner surfaces of the cavity under pressure.
  • a plastic foam is primarily an expanding plastic. In contrast to the hose 18, the plastic foam remains inside the material web lining the cavity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Laminated Bodies (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Dans un procédé pour renforcer le châssis de voitures de tourisme, notamment le bas de caisse, y compris les cavités, on enduit la face intérieure du châssis d'un matériau textile absorbant; on imprègne ce matériau d'une résine synthétique coulante; on applique sous pression le matériau imprégné sur la surface intérieure du châssis dont il épouse les contours, et on laisse la résine synthétique durcir sous pression dans le matériau textile.
EP88903789A 1987-04-18 1988-04-13 Procede pour renforcer le chassis metallique, notamment le bas de caisse, de voitures de tourisme Pending EP0357651A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19873713302 DE3713302A1 (de) 1987-04-18 1987-04-18 Verfahren zum versteifen des metallischen chassis, insbesondere der bodengruppe von personenkraftwagen
DE3713302 1987-04-18
DE19873728757 DE3728757A1 (de) 1987-04-18 1987-08-28 Verfahren zum versteifen von metallischen kraftfahrzeug-chassis
DE3728757 1987-08-28

Publications (1)

Publication Number Publication Date
EP0357651A1 true EP0357651A1 (fr) 1990-03-14

Family

ID=25854802

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88903789A Pending EP0357651A1 (fr) 1987-04-18 1988-04-13 Procede pour renforcer le chassis metallique, notamment le bas de caisse, de voitures de tourisme
EP88105903A Expired - Lifetime EP0287941B1 (fr) 1987-04-18 1988-04-13 Méthode pour rigidifier des châssis métalliques, en particulier pour les coques de voitures particulières

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP88105903A Expired - Lifetime EP0287941B1 (fr) 1987-04-18 1988-04-13 Méthode pour rigidifier des châssis métalliques, en particulier pour les coques de voitures particulières

Country Status (7)

Country Link
EP (2) EP0357651A1 (fr)
JP (1) JPH0659842B2 (fr)
AT (1) ATE70792T1 (fr)
DE (2) DE3728757A1 (fr)
ES (1) ES2027723T3 (fr)
GR (1) GR3003478T3 (fr)
WO (1) WO1988007954A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3922351A1 (de) * 1989-07-07 1991-01-10 Jt Elektronik Gmbh Verfahren zur sanierung von abflussrohren unter verwendung eines verharzten innenrohres
DE4420439A1 (de) * 1994-06-10 1995-12-14 Stankiewicz Gmbh Ladeflächenauskleidung mit integrierter Schallisolation
DE19621782A1 (de) * 1996-05-30 1997-12-04 Odenwald Chemie Gmbh Abstandhalter aus Schaumstoff sowie Verwendung desselben und Verfahren zur Behandlung von Kraftfahrzeugblechen unter Verwendung solcher Abstandhalter
DE19638904A1 (de) * 1996-09-23 1998-03-26 Bayerische Motoren Werke Ag Verfahren zur Herstellung eines Hohlträgers für Fahrzeugkarosserien
KR100260763B1 (ko) * 1998-02-20 2000-07-01 윤인선 개구부에 발포단열층을 구비한 알미늄샤시와 그 제조방법 및 장치
DE102005061506B4 (de) * 2005-12-22 2016-03-10 Audi Ag Strukturteil für ein Fahrzeug
JP4784425B2 (ja) * 2006-07-28 2011-10-05 トヨタ自動車株式会社 ロアボデー構造体とその製造方法
FR2923794B1 (fr) * 2007-11-19 2010-02-26 Renault Sas Structure de vehicule automobile
JP5959558B2 (ja) * 2014-03-13 2016-08-02 アイシン高丘株式会社 複合構造体及びその製造方法
EP3138685B1 (fr) * 2015-09-03 2019-02-27 Evonik Degussa GmbH Composant hybride dote d'un renfort local constitue d'un materiau en fibres composites a base de polyurethane, reticule en deux etapes

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Publication number Priority date Publication date Assignee Title
DE1729069U (de) * 1953-12-28 1956-08-30 Auto Union Gmbh Kunststoff-wagenkasten, insbesondere fuer kraftfahrzeuge.
BE535333A (fr) * 1954-02-01
US2931739A (en) * 1956-10-08 1960-04-05 Owens Corning Fiberglass Corp Plastics and laminates formed of glass fibers and epoxy resins
DE2616309C2 (de) * 1976-04-12 1984-08-02 Helmut Prof. Dr. 4020 Mettmann Käufer Verfahren zum Herstellen von Verbundwerkstoffen
DE2624488A1 (de) * 1976-06-01 1977-12-15 Klaus Hager Dauerhafter korrossionsschutz von automobilen oder aehnlichen produkten
DE2747721A1 (de) * 1977-10-25 1979-04-26 Daimler Benz Ag Verfahren und vorrichtung zum ausschaeumen von karosseriehohlraeumen
US4446092A (en) * 1978-06-22 1984-05-01 Structural Fibers, Inc. Method for making lined vessels
DE3011336A1 (de) * 1980-03-25 1981-10-01 Daimler-Benz Ag, 7000 Stuttgart Karosserieaussenhautteile aus faserverbundwerkstoff fuer kraftfahrzeuge
US4475976A (en) * 1983-12-23 1984-10-09 The Boeing Company Method and apparatus for forming composite material articles
DE3410050A1 (de) * 1984-03-19 1985-09-19 Manfred 7062 Rudersberg Krauter Verfahren zur herstellung von faserverstaerkten kunststoff-formteilen
DE8601811U1 (fr) * 1986-01-24 1986-12-04 Lorenz & Co Gmbh, 6633 Wadgassen, De

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8807954A1 *

Also Published As

Publication number Publication date
WO1988007954A1 (fr) 1988-10-20
JPH02503080A (ja) 1990-09-27
EP0287941B1 (fr) 1991-12-27
DE3867115D1 (de) 1992-02-06
JPH0659842B2 (ja) 1994-08-10
ATE70792T1 (de) 1992-01-15
DE3728757A1 (de) 1989-03-09
ES2027723T3 (es) 1992-06-16
GR3003478T3 (en) 1993-02-17
EP0287941A1 (fr) 1988-10-26

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Free format text: VERFAHREN ABGESCHLOSSEN INFOLGE VERBINDUNG MIT 88105903.4/0287941 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) VOM 12.06.90.