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1. (WO1979000124) NEW HIGH ABSORPTION BUMPER DEVICE FOR VEHICLES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000124 International Application No.: PCT/FR1978/000007
Publication Date: 22.03.1979 International Filing Date: 07.07.1978
IPC:
B60R 19/34 (2006.01) ,F16F 7/12 (2006.01) ,B60R 19/32 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
R
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
19
Wheel guards; Radiator guards; Obstruction removers; Fittings damping bouncing force in collisions
02
Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
24
Arrangements for mounting bumpers on vehicles
26
comprising yieldable mounting means
34
destroyed upon impact, e.g. one-shot type
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
7
Vibration-dampers; Shock-absorbers
12
using plastic deformation of members
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
R
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
19
Wheel guards; Radiator guards; Obstruction removers; Fittings damping bouncing force in collisions
02
Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
24
Arrangements for mounting bumpers on vehicles
26
comprising yieldable mounting means
32
Fluid shock absorbers
Applicants:
Inventors:
Priority Data:
772752302.09.1977FR
Title (EN) NEW HIGH ABSORPTION BUMPER DEVICE FOR VEHICLES
(FR) NOUVEAU DISPOSITIF PARE-CHOCS A HAUTE ABSORPTION POUR VEHICULES
Abstract:
(EN) The bumper device relates to the absorption of high energy shocks which all types of mobiles or vehicles and particularly automobile vehicles may undergo. In its preferred form of execution, the device comprises one or several capacities (17, 18) arranged most often at the front of the vehicle and containing a hydraulic fluid. Each of these capacities is connected by a pipe (22, 23) to a collecting tank deformable by expansion (24, 25) and also filled with fluid. By the action of a violent shock, these capacities crush and eject the fluid they contain towards the collecting tanks of which the walls expand as the fluid comes in. It is the plastic deformation of these walls which absorb the energy of the shock. This device is particularly suitable for application to high absorbing bumpers for automobiles and preferably comprises collecting tanks made of instable austenite-containing steel.
(FR) dispositif pare-chocs concernant principalement l"absorption des chocs de haute energie qui peuvent etre: subis par tous types de mobiles ou de vehicules et en particuliers par les vehicules automobiles. Dans son mode preferentiel de realisation, le dispositif comporte une ou plusieurs capacites (17, 18) disposees le plus souvent a l"avant du vehicule et contenant un fluide hydraulique. Chacune de ces capacites est reliee par une canalisation (22, 23) a une enceinte receptrice deformable par expansion (24, 25) et remplie egalement de fluide. Sous l"action d"un choc violent, ces capacites s"ecrasent en ejectant le fluide que"elles contiennent en direction des enceintes receptrices dont les parois se dilatent au fur et a mesure de l"arrivee du fluide. C"est la deformation plastique des ces parois qui absorbe l"energie du choc. Ce dispositif convient plus particulierement a la realisation de pare-chocs a haute absorption pour automobiles et comporte de preference des enceintes receptrices en acier austenitique a austenite instable.
Designated States:
Publication Language: French (FR)
Filing Language: French (FR)