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1. EP0876265 - BUMPER, AND THE FABRICATION THEREOF

Office
European Patent Office
Application Number 97901848
Application Date 14.01.1997
Publication Number 0876265
Publication Date 11.11.1998
Publication Kind B1
IPC
B62D 21/00
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
21Understructures, i.e. chassis frame on which a vehicle body may be mounted
B60R 19/02
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
19Wheel guards; Radiator guards; Obstruction removers; Fittings damping bouncing force in collisions
02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
B60R 19/18
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
19Wheel guards; Radiator guards; Obstruction removers; Fittings damping bouncing force in collisions
02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
18Means within the bumper to absorb impact
B62D 25/00
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
25Superstructure sub-units; Parts or details thereof not otherwise provided for
CPC
B60R 19/18
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
19Wheel guards; Radiator guards, ; e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
18characterised by the cross-section;; Means within the bumper to absorb impact
B60R 2019/1813
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
19Wheel guards; Radiator guards, ; e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
18characterised by the cross-section;; Means within the bumper to absorb impact
1806Structural beams therefor, e.g. shock-absorbing
1813made of metal
B60R 2019/182
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
19Wheel guards; Radiator guards, ; e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
18characterised by the cross-section;; Means within the bumper to absorb impact
1806Structural beams therefor, e.g. shock-absorbing
1813made of metal
182of light metal, e.g. extruded
Applicants NORSK HYDRO AS
Inventors PEDERSEN ROALD H
Priority Data 960288 24.01.1996 NO
9700011 14.01.1997 NO
Title
(DE) STOSSDÄMPFER UND HERSTELLUNGSVERFAHREN
(EN) BUMPER, AND THE FABRICATION THEREOF
(FR) PARE-CHOCS ET SA FABRICATION
Abstract
(EN)
The present invention relates to a structural beam or bumper, especially for a vehicle, comprising an elongated profile which upon collision is adapted for absorbing collision energy and forces, the bumper being prepared from a complete and hollow blank and being further provided with different cross sections along its more or less arched extension, and for the purpose of providing a structural beam or bumper bar which renders possibilities for rational and structural sturdy attachment to the frame of the vehicle, it is suggested that the bumper (1), has a substantially unchanged basic cross section (2) at each side of the centre (V-V), an outwardly pressed cross section (3) at the centre (V-V) in relation to said basic cross section (2), as well as a compressed or folded cross section (4) at the areas of each terminal portion.

(FR)
Cette invention se rapporte à un longeron structurel ou un pare-choc, en particulier pour véhicules, qui comprend un profilé allongé qui, lors d'une collision, absorbe l'énergie et les forces de collision. Ce pare-choc est préparé à partir d'une ébauche complète et creuse et il comporte en outre différentes sections transversales sur sa longueur plus ou moins courbe et, afin de former une barre de longeron structurel ou de pare-chocs qui permette sa fixation robuste rationnelle et structurelle au châssis du véhicule, cette invention propose que le pare-choc (1) possède une section transversale de base essentiellement inchangée (2) de part et d'autre du centre (V-V), une section transversale emboutie vers l'extérieur (3) au centre (V-V) par rapport à cette section transversale de base (2), ainsi qu'une section transversale comprimée ou pliée (4) dans les zones de chacune des parties terminales.