A WHEELED VEHICLE

WIPO Patent Application WO/2012/010885

A3

A wheeled vehicle (2) incorporating first and second wheel assemblies (7a,7b) which are provided respectively at laterally spaced apart positions on the vehicle (2). Each wheel assembly (7a,7b) is rotatably mounted to the vehicle for rotation about a respective orientation axis (X1,X2). Each wheel assembly has at least one wheel (13a,13b,14a,14b) which is attached rotatably to a mounting device (9a,9b) for rotation about a roll axis (A1,A2). The or each wheel having a radius (R), each wheel assembly having a track width (W) which is substantially equal to or greater than the radius (R). The roll axes (A1,A2) of the first and second wheel assemblies (7a,7b) are substantially parallel and co-axially aligned with one another in a normal orientation when the vehicle (2) travels over a roll plane (P) in a stable condition. If the vehicle (2) becomes unstable when in use such that one of the wheel assemblies (7a,7b) depart from the roll plane (P), a rotational torque is generated across the track width (W) of the other wheel assembly (7a,7b) in contact with the roll plane (P). The torque causes the said other wheel assembly (7a,7b) to rotate in a predefined arc (M2) about its orientation axis (X1,X2) in a direction away from its normal orientation to stabilise the vehicle (2).

O'LEARY EAMONN (GB)

PCT/GB2011/051360

September 26, 2013

July 19, 2011

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O'LEARY EAMONN (GB)

A45C5/14; B60B33/00; B60B33/04

FR2844242A1	2004-03-12
DE102005016991A1	2006-10-19
US3856321A	1974-12-24
US5253739A	1993-10-19
US7568709B2	2009-08-04

HOARTON, Lloyd (Sherborne House119–121 Cannon Street, London EC4N 5AT, GB)

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