Patent ID: 6402175
Filing Date: 2002-06-11
Classification: B62K

Abstract:
Front wheel suspension on a vehicle having only one front wheel mounted in at least one supporting member,said at least one supporting member mounted to a chassis of the vehicle by an upper bearing unit and a lower bearing unit, said upper and lower bearing units each comprising one or more link elements, said lower bearing unit further comprising at least one springing member, said bearing units being configured to allow the at least one supporting member to resiliently move in a springing direction along a longitudinal axis of the at least one supporting member, said upper and lower bearing units being configured to effect a torsional rigidity against a cross-directional action of the supporting member relative to the chassis, said upper and lower bearing units being configured to allow steering of the only one front wheel about a rotational axis of the at least one supporting member while the at least one supporting member is resiliently moving in the springing direction, said upper bearing unit including a first bearing member secured to said at least one supporting member by a first link unit and a second bearing member secured to the chassis by a second link unit, said lower bearing unit including a third bearing member secured to said at least one supporting member by a third link unit and a fourth bearing member secured to the chassis by a fourth link unit, wherein the only one front wheel is turnable, and said upper bearing unit comprises at least one link element performing at least a part of a bearing function for the at least one supporting member and coupling to a steering linkage of the vehicle, wherein said upper bearing unit is arranged compliantly to provide a torsion or turning motion effect in the upper bearing unit whenever said at least one supporting member and the only one front wheel are allotted a steering or turning motion about the rotational axis of the at least one supporting member.