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1. WO2002022429 - ARRANGEMENT AND METHOD FOR OPERATING SELF-STEERING WHEELS

Publication Number WO/2002/022429
Publication Date 21.03.2002
International Application No. PCT/SE2001/001923
International Filing Date 10.09.2001
Chapter 2 Demand Filed 15.03.2002
IPC
B62D 7/14 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
7Steering linkage; Stub axles or their mountings
06for individually-pivoted wheels, e.g. on king-pins
14the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
B62D 13/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
13Steering specially adapted for trailers
04for individually-pivoted wheels
CPC
B62D 13/04
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
13Steering specially adapted for trailers
04for individually-pivoted wheels
B62D 7/144
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
7Steering linkage; Stub axles or their mountings
06for individually-pivoted wheels, e.g. on king-pins
14the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
142specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks
144for vehicles with more than two axles
Applicants
  • VOLVO LASTVAGNAR AB [SE]/[SE] (AllExceptUS)
  • JÄBERG, Björn [SE]/[SE] (UsOnly)
Inventors
  • JÄBERG, Björn
Agents
  • ANDERSSON, Per
Priority Data
0003238-313.09.2000SE
Publication Language English (EN)
Filing Language Swedish (SV)
Designated States
Title
(EN) ARRANGEMENT AND METHOD FOR OPERATING SELF-STEERING WHEELS
(FR) PROCEDE ET DISPOSITIF DESTINES A MANOEUVRER DES ROUES AUTODIRECTRICES
Abstract
(EN)
The invention relates to an arrangement for operating self-steering wheels on a non-driving axle (3) in a vehicle, which wheels (1, 2) are each mounted on their own stub axle (4, 5) and connected to a tie rod (8). The axle (3) and one (4) of the stub axles are connected by a cylinder (12) with two separate chambers (16, 17), each chamber having an individually adjustable piston (22, 23), the cylinder (12) having a first, freely movable state, in which its length is variable, and a second, pressurized state, in which its length (S3) is fixed, and in that each chamber (16, 17) has at least one connection (18, 19; 20, 21) for pressure medium for acting on the respective piston (22, 23) in the cylinder (12). The invention also relates to a method for operating the self-steering wheels.
(FR)
L'invention concerne un dispositif destiné à manoeuvrer des roues autodirectrices sur un essieu non moteur (3) dans un véhicule. Lesdites roues (1,2) sont montées sur leurs porte-fusées (4, 5) respectifs et raccordées à une barre d'accouplement (8). L'essieu (3) et l'un des porte-fusées (4) sont raccordés par un cylindre (12) muni de deux chambres séparées (16, 17), chaque chambre comprenant un piston réglable individuellement (22, 23). Ledit cylindre (12) présente un premier état dans lequel il peut se déplacer librement, ainsi qu'un second état dans lequel il est soumis à une pression, sa longueur (S3) étant fixe. Chaque chambre (16, 17) comprend au moins un raccord (18, 19; 20, 21) permettant au fluide sous pression d'agir sur un piston respectif (22, 23) dans le cylindre (12). L'invention concerne également un procédé destiné à manoeuvrer ces roues autodirectrices.
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