FR2711596A1 - Motor vehicle bumper device - Google Patents

Motor vehicle bumper device Download PDF

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Publication number
FR2711596A1
FR2711596A1 FR9312608A FR9312608A FR2711596A1 FR 2711596 A1 FR2711596 A1 FR 2711596A1 FR 9312608 A FR9312608 A FR 9312608A FR 9312608 A FR9312608 A FR 9312608A FR 2711596 A1 FR2711596 A1 FR 2711596A1
Authority
FR
France
Prior art keywords
vehicle
motor vehicle
shell
structural cross
bumper device
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
Application number
FR9312608A
Other languages
French (fr)
Other versions
FR2711596B1 (en
Inventor
Birolini Andre
Vail Gerard
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Priority to FR9312608A priority Critical patent/FR2711596B1/en
Publication of FR2711596A1 publication Critical patent/FR2711596A1/en
Application granted granted Critical
Publication of FR2711596B1 publication Critical patent/FR2711596B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
    • B60R2019/1866—Cellular structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1893—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact comprising a multiplicity of identical adjacent shock-absorbing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R2019/247—Fastening of bumpers' side ends

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)

Abstract

Motor vehicle bumper device, consisting of an outer shell (1) which extends transversely and laterally in front of the bodywork (2) of the vehicle and which has horizontal reinforcement plates (6, 7) connected to the lower part (8) of the shell (1) and oriented in the direction of a structural cross-member (3) rigidly connected to the ends of the longitudinal members (4) of the vehicle, characterised in that the plates (6, 7) are partially fitted into the structural cross-member (3) and locally enclose an abutment element (20) which absorbs energy.

Description

DISPOSITIF PARE-CHOCS DE VEHICULE AUTOMOBILE
L'invention concerne un dispositif parechocs de véhicule automobile constitué par une coque extérieure qui s'étend transversalement et latéralement devant la carrosserie et qui -de des lames horizontales parallUes de renforcement raccordées à la paroi intérieure de la coque et orientes en direction d'une traverse de structure rigidement reliée aux extrémités des longerons du cassis. MOTOR VEHICLE BUMPER DEVICE
The invention relates to a bumper device for a motor vehicle constituted by an outer shell which extends transversely and laterally in front of the bodywork and which has parallel horizontal reinforcing strips connected to the inner wall of the shell and oriented towards a cross member rigidly connected to the ends of the longitudinal sides of the blackcurrant.

La publication FR-A-2 632 587 décrit un tel parechocs monobloc en plastique tel que le polypropylène sur lequel les lames portent des moyens de fixation du pare chocs à la structure du véhicule.Publication FR-A-2 632 587 describes such a one-piece plastic bumper such as polypropylene on which the blades carry means for fixing the bumper to the structure of the vehicle.

Lorsque le pare chocs est déformé de façon élastique par une charge extérieure en raison d'un choc contre un autre véhicule, les lames de renforcement sont soumises à une compression. n en résulte que le bord supérieure du pare chocs s'écrase contre la carrosserie. Dans ces conditions le parechocs conserve une efficacité réduite aux chocs occasionnés à faible vitesse, notamment au cours des manoeuvres de parcage du véhicule.When the bumper is resiliently deformed by an external load due to an impact against another vehicle, the reinforcing blades are subjected to compression. As a result, the upper edge of the bumper crashes against the body. Under these conditions, the bumper retains a reduced effectiveness in impacts caused at low speed, in particular during parking maneuvers of the vehicle.

Dans le but de renforcer le parechocs, il est connu de remplir la coque extérieure par une résine de structure cellulaire. Un tel paretchocs connu par la publication FR-A-2 534 847 nécessite une structure à chambres de remplissage.In order to strengthen the bumper, it is known to fill the outer shell with a cell structure resin. Such a paretchock known from the publication FR-A-2 534 847 requires a structure with filling chambers.

L'invention a pour objet un parechocs qui possède des organes de renforcement localisés dans le but de conférer à la carrosserie une protection accrue.The subject of the invention is a bumper which has localized reinforcement members in order to give the bodywork increased protection.

Selon l'invention, les lames sont partiellement encastrées dans la traverse de structure et enveloppent localement un élément de butée absorbeur d'énergie.According to the invention, the blades are partially embedded in the structural cross member and locally envelop an energy absorbing stop element.

D'autres caractéristiques et avantages de l'invention apparattront à la lecture de la description d'un exemple de réalisation du dispositif pao chocs en référence au dessin annexé dans lequel: - la figure 1 est une vue en plan d'une partie du dispositif parechocs conforme à l'invention, - les figures 2, 3 et 4 représentent les coupes transversales du dispositif selon les lignes II - m - IV de la figure 1.Other characteristics and advantages of the invention will appear on reading the description of an exemplary embodiment of the pao shock device with reference to the appended drawing in which: - Figure 1 is a plan view of a part of the device bumpers according to the invention, - Figures 2, 3 and 4 show the cross sections of the device along lines II - m - IV of Figure 1.

Selon la figure 1 le parechocs est constitué par une coque extérieure 1 pouvant être montée aux extrémités avant ou arrière d'une carrosserie de véhicule respecdvement au moyen d'une traverse de structure 3 rigidement reliée aux extrémités des longerons 4 du chassies du véhicule.According to Figure 1 the bumper is formed by an outer shell 1 which can be mounted at the front or rear ends of a vehicle body respecdvement by means of a structural cross member 3 rigidly connected to the ends of the side members 4 of the vehicle casings.

La coque 1 s'étend latéralement le long des ailes avant ou arrière de la carrosserie ainsi que cela est bien connu.The shell 1 extends laterally along the front or rear wings of the body as is well known.

Des lames horizontales parallèles de renforcement 6,7 sont raccordées à la paroi intérieure 8 dc la coque 1 et orientées en direction de la traverse 3.Parallel horizontal reinforcing strips 6,7 are connected to the interior wall 8 of the shell 1 and oriented in the direction of the cross-member 3.

Ainsi que cela est représenté aux figures 2, 3, la traverse 3 possède une section générale en C dont l'ame verticale est tournée vers les lames 6, 7.As shown in FIGS. 2, 3, the cross-member 3 has a general section in C, the vertical core of which is turned towards the blades 6, 7.

Cellesci s'étendent transversalement le long de la paroi 8 tandis que le bord supérieur 10 de la coque 1 repose sur une lame d'appui transversale 11 montée sur une succession de renforts verticaux 12 transversalement espacés entre deux zones de butée 1S, sensiblement situées dans la zone d'assemblage de la traverse 3 avec les extrémités des longerons 4. These extend transversely along the wall 8 while the upper edge 10 of the shell 1 rests on a transverse support blade 11 mounted on a succession of vertical reinforcements 12 transversely spaced between two abutment zones 1S, substantially located in the assembly area of the cross member 3 with the ends of the side members 4.

Dans le but de renforcer le pare chocs sous l'action de pousses longitudinales, les lames 6, 7 sont partiellement et localement encastrées dans la traverse 3 ainsi que cela est montré à la figure 2 et enveloppent deux éléments de butée 20 absorbeurs d'énergie respectivement localisés dans les zones 15.In order to reinforce the bumper under the action of longitudinal shoots, the blades 6, 7 are partially and locally embedded in the cross member 3 as shown in FIG. 2 and envelop two stop elements 20 energy absorbers respectively located in zones 15.

Les éléments de butée 20 sont localisés entre des sections de la coque 1 dans lesquelles son bord extérieur supérieur 10 est encastré sous le bord du décrochement 21 sensiblement horizontal de l'aile latérale de la carrosserie comme montré à la figure 4. La paroi intérieure 8 reçoit conformément à l'invention une poussée verticale communiquée par un organe presseur 22.The abutment elements 20 are located between sections of the shell 1 in which its upper outer edge 10 is embedded under the edge of the substantially horizontal recess 21 of the lateral wing of the bodywork as shown in FIG. 4. The inner wall 8 according to the invention receives a vertical thrust communicated by a pressing member 22.

Celuisi est constitué par une patte élastique rivée sur le panneau 23 de la carrosserie constitutif de l'aile avant ou arrière rigidifiée par une tôle de doublage 24.  This is constituted by an elastic tab riveted on the panel 23 of the bodywork constituting the front or rear wing stiffened by a lining sheet 24.

Claims (2)

REVENDICATIONS 1) Dispositif parechocs de véhicule automobile constitué par une coque extérieure (1) qui s'étend transversalement et latéralement devant la carrosserie (2) du véhicule et qui possède des lames horizontales (6,7) de renforcement raccordés à la paroi intérieure (8) de la coque (1) et orientées en direction d'une traverse de structure (3) rigidement reliée aux extrémités des longerons (4) du véhicule, caractisé par le hit que les lames (6, 7) sont partiellement encastrées dans la traverse de structure (3) et enveloppent localement un élément de butée (20) absorbeur d'énergie. CLAIMS 1) Bumper device of a motor vehicle constituted by an outer shell (1) which extends transversely and laterally in front of the body (2) of the vehicle and which has horizontal reinforcing blades (6,7) connected to the interior wall ( 8) of the hull (1) and oriented in the direction of a structural cross member (3) rigidly connected to the ends of the side members (4) of the vehicle, characterized by the hit that the blades (6, 7) are partially embedded in the structural cross member (3) and locally surround an energy absorbing stop element (20). 2) Dispositif selon la revendication 1, caractérisé par le fit que l'élément de butée (20) est localisé entre deux sections de la coque dont le bord extérieur supérieur (10) est encastré sous le bord d'un décrochement (21) sensiblement horizontal d'un panneau (23) de la carrosserie et dont la paroi intérieure (8) reçoit une poussée verticale communiquée par un organe presseur (22) fixé sur ledit panneau (23). 2) Device according to claim 1, characterized by the fact that the abutment element (20) is located between two sections of the shell whose upper outer edge (10) is embedded under the edge of a recess (21) substantially horizontal of a panel (23) of the body and whose inner wall (8) receives a vertical thrust communicated by a pressing member (22) fixed on said panel (23).
FR9312608A 1993-10-22 1993-10-22 Motor vehicle bumper device. Expired - Fee Related FR2711596B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9312608A FR2711596B1 (en) 1993-10-22 1993-10-22 Motor vehicle bumper device.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9312608A FR2711596B1 (en) 1993-10-22 1993-10-22 Motor vehicle bumper device.

Publications (2)

Publication Number Publication Date
FR2711596A1 true FR2711596A1 (en) 1995-05-05
FR2711596B1 FR2711596B1 (en) 1995-12-01

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Family Applications (1)

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FR9312608A Expired - Fee Related FR2711596B1 (en) 1993-10-22 1993-10-22 Motor vehicle bumper device.

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29519222U1 (en) * 1995-12-05 1996-01-25 Rehau Ag + Co, 95111 Rehau Device for absorbing energy
FR2736315A1 (en) * 1995-07-07 1997-01-10 Renault Attachment for shock absorbers to vehicle - has energy-absorbing blocks interposed between shock absorber mounting and pivot
FR2756524A1 (en) * 1996-11-29 1998-06-05 Renault Bumper for vehicle
EP1426242A2 (en) * 2002-11-29 2004-06-09 Compagnie Plastic Omnium Bumper beam with twin shells and a stiffening element

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938841A (en) * 1973-12-07 1976-02-17 Ford Motor Company Resilient bumper assembly
FR2364789A1 (en) * 1976-09-21 1978-04-14 Renault Plastics bumper attachment for automobiles - has synthetic cellular element attached to chassis to elastically absorb small shocks
FR2370608A1 (en) * 1976-11-15 1978-06-09 Stars Spa Energy-absorbing vehicle bumper - comprising U=section plastic cover strip fitting over U=section rigid bar with intermediate foam plastics
JPS621654A (en) * 1985-06-26 1987-01-07 Tonen Sekiyukagaku Kk Bumper for automobile
JPS6212443A (en) * 1985-07-09 1987-01-21 Fuji Heavy Ind Ltd Bumper structure of automobile
US4925224A (en) * 1989-03-06 1990-05-15 Romeo-Rim, Inc. Energy absorbing vehicle bumper
JPH05112190A (en) * 1991-10-22 1993-05-07 Daikyo Inc Structure of bumper

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938841A (en) * 1973-12-07 1976-02-17 Ford Motor Company Resilient bumper assembly
FR2364789A1 (en) * 1976-09-21 1978-04-14 Renault Plastics bumper attachment for automobiles - has synthetic cellular element attached to chassis to elastically absorb small shocks
FR2370608A1 (en) * 1976-11-15 1978-06-09 Stars Spa Energy-absorbing vehicle bumper - comprising U=section plastic cover strip fitting over U=section rigid bar with intermediate foam plastics
JPS621654A (en) * 1985-06-26 1987-01-07 Tonen Sekiyukagaku Kk Bumper for automobile
JPS6212443A (en) * 1985-07-09 1987-01-21 Fuji Heavy Ind Ltd Bumper structure of automobile
US4925224A (en) * 1989-03-06 1990-05-15 Romeo-Rim, Inc. Energy absorbing vehicle bumper
JPH05112190A (en) * 1991-10-22 1993-05-07 Daikyo Inc Structure of bumper

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 168 (M - 594) 29 May 1987 (1987-05-29) *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 183 (M - 598) 12 June 1987 (1987-06-12) *
PATENT ABSTRACTS OF JAPAN vol. 17, no. 472 (M - 1470) 27 August 1993 (1993-08-27) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736315A1 (en) * 1995-07-07 1997-01-10 Renault Attachment for shock absorbers to vehicle - has energy-absorbing blocks interposed between shock absorber mounting and pivot
DE29519222U1 (en) * 1995-12-05 1996-01-25 Rehau Ag + Co, 95111 Rehau Device for absorbing energy
FR2756524A1 (en) * 1996-11-29 1998-06-05 Renault Bumper for vehicle
EP1426242A2 (en) * 2002-11-29 2004-06-09 Compagnie Plastic Omnium Bumper beam with twin shells and a stiffening element
EP1426242A3 (en) * 2002-11-29 2004-08-25 Compagnie Plastic Omnium Bumper beam with twin shells and a stiffening element

Also Published As

Publication number Publication date
FR2711596B1 (en) 1995-12-01

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ST Notification of lapse

Effective date: 20130628