Processing

Please wait...

Settings

Settings

Goto Application

1. EP3677490 - HOLLOW MEMBER

Office European Patent Office
Application Number 17923792
Application Date 01.09.2017
Publication Number 3677490
Publication Date 08.07.2020
Publication Kind A1
IPC
B62D 21/15
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
15having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
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
F16S 3/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
SCONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
3Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles
CPC
B62D 21/15
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
15having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
B62D 25/00
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
25Superstructure ; or monocoque structure; sub-units; Parts or details thereof not otherwise provided for
F16S 3/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
SCONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
3Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles
B60R 19/34
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
24Arrangements for mounting bumpers on vehicles
26comprising yieldable mounting means
34destroyed upon impact, e.g. one-shot type
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 2019/247
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
24Arrangements for mounting bumpers on vehicles
247Fastening of bumpers' side ends
Applicants NIPPON STEEL CORP
Inventors HIROSE SATOSHI
NAKAZAWA YOSHIAKI
Designated States
Title
(DE) HOHLKÖRPER
(EN) HOLLOW MEMBER
(FR) ÉLÉMENT CREUX
Abstract
(EN)
Energy absorption at the time of load input is improved with high mass efficiency.A hollow member includes: a hollow metal member having a bending induction portion in a portion thereof in a longitudinal direction; and a resin material which is disposed in close contact with the metal member on both sides of the bending induction portion in the longitudinal direction, and is disposed in at least a part of a range of less than 5/6 of a cross-sectional height of the metal member from an end portion of the bending induction portion toward an outside in the longitudinal, in which an amount of the resin material per length in the longitudinal direction is larger on the outside of the bending induction portion than on an inside of the bending induction portion.

(FR)
Le problème décrit par la présente invention est de mettre en œuvre, avec une efficacité de masse élevée, une absorption d'énergie au moment d'une entrée de charge. La solution selon l'invention porte sur un élément creux qui est pourvu : d'un élément métallique creux qui a une partie d'induction de flexion dans une partie de celui-ci dans la direction longitudinale ; et des éléments de résine qui sont disposés sur les deux côtés, dans la direction longitudinale, de la partie d'induction de flexion de façon à être en contact étroit avec l'élément métallique, et qui sont disposés à l'intérieur d'au moins une partie de la plage inférieure à cinq sixièmes de la hauteur de section transversale de l'élément métallique de façon à s'étendre chacun à partir d'une extrémité de la partie d'induction de flexion vers l'extérieur dans la direction longitudinale, la quantité des éléments de résine sur le côté externe de la partie d'induction de flexion étant plus grande, par longueur longitudinale, que celle des éléments de résine sur le côté interne de la partie d'induction de flexion.