The invention relates to a vehicle which includes at least four wheels and a base. Said wheels are attached in pairs at the base via connections and form a bogie consisting of a pair of wheels. Said bogies are rotatably hinged onto the base such that the pivot point of the path of the wheels is not physically present and said pivot point is located under the rotational axis of the wheels when the bogie is horizontal. The rotation of a bogie is transmitted by a transmission means to the other bogie such that the slant of each bogie in relation to the base forms an angle of identical but opposite value.

A trailer system and method of use for towing a load are provided. The trailer system include a trailer body supported by suspension arms on a trailer frame. A hoist mechanism having a winch device and a flexible connector can raise and lower the trailer body by swinging on the suspension arms, which maintain the trailer body in a substantially horizontal orientation during the swing. A modular wheel suspension can be attached to the trailer system.

A trailer system and method of use for towing a load are provided. The trailer system include a trailer body supported by suspension arms on a trailer frame. A hoist mechanism having a winch device and a flexible connector can raise and lower the trailer body by swinging on the suspension arms, which maintain the trailer body in a substantially horizontal orientation during the swing. A modular wheel suspension can be attached to the trailer system.

A suspension system for a pair of wheels of a vehicle is disclosed. The suspension system comprises an inner member and a sleeve member that are coaxially arranged and rotatable relative to each other about the axis and a resilient element that rotatably biases the inner member relative to the sleeve member. The suspension system further comprises first and second arms that are secured to one or other of the inner member and the sleeve member and are configured to be rotatably coupled to respective wheels of the pair of wheels. In use, displacing at least one of the wheels relative to a chassis of the vehicle transfers a force to a respective arm and applies a torque to one of the members relative to the other member resulting in a biasing force which resists the torque and acts to return the displaced wheel back to the ground surface.

A suspension system for a pair of wheels of a vehicle is disclosed. The suspension system comprises an inner member and a sleeve member that are coaxially arranged and rotatable relative to each other about the axis and a resilient element that rotatably biases the inner member relative to the sleeve member. The suspension system further comprises first and second arms that are secured to one or other of the inner member and the sleeve member and are configured to be rotatably coupled to respective wheels of the pair of wheels. In use, displacing at least one of the wheels relative to a chassis of the vehicle transfers a force to a respective arm and applies a torque to one of the members relative to the other member resulting in a biasing force which resists the torque and acts to return the displaced wheel back to the ground surface.

A walking beam suspension assembly may include, but is not limited to: a beam portion including: a central body portion; and at least one mounting bushing disposed through the beam portion; a linkage rotatably coupled to the frame portion via at least one linkage pivot bushing; and one or more elastically deformable members coupled to the linkage and configured to abut the central body portion.

A walking beam suspension assembly may include, but is not limited to: a beam portion including: a central body portion; and at least one mounting bushing disposed through the beam portion; a linkage rotatably coupled to the frame portion via at least one linkage pivot bushing; and one or more elastically deformable members coupled to the linkage and configured to abut the central body portion.

Provided is a vehicle with a cargo room provided on a vehicle body frame, the vehicle comprising: drive motors respectively provided for each of a pair of first rear wheels 50 and a pair of second rear wheels 55 disposed at a predetermined interval in the front-rear direction of the vehicle, the drive motors rotating the first rear wheels 50 and second rear wheels 55 independently; and a pair of suspension mechanisms 100 supporting a first axle of the first rear wheels 50 and a second axle of the second rear wheels 55. The suspension mechanism 100 includes: a first arm 110 which is coupled to the first axle of the first rear wheels 50 and the longitudinal direction of which extends in the front-rear direction; a second arm 115 which is coupled to the second axle of the second rear wheels 55 and the longitudinal direction of which extends in the front-rear direction; a support shaft 120 that causes one end of the first arm 110 in the longitudinal direction and one end of the second arm 115 in the longitudinal direction to be rotatably supported with respect to the vehicle body frame; a first spring member 130 provided between the other end of the first arm 110 in the longitudinal direction and the vehicle body; and a second spring member 135 provided between the other end of the second arm 115 in the longitudinal direction and the vehicle body.

A load equalizer assembly for a vehicle comprises a mounting bracket configured to be fixedly mounted to the vehicle, the mounting bracket having a downwardly extending arm. An equalizer bracket is pivotally connected to the mounting bracket by way of the arm. The equalizer bracket comprises a laterally facing side having a stepped surface with an inwardly stepped portion and an outwardly stepped portion. The arm is received laterally adjacent to the inwardly stepped portion of the equalizer bracket.

A load equalizer assembly for a vehicle comprises a mounting bracket configured to be fixedly mounted to the vehicle, the mounting bracket having a downwardly extending arm. An equalizer bracket is pivotally connected to the mounting bracket by way of the arm. The equalizer bracket comprises a laterally facing side having a stepped surface with an inwardly stepped portion and an outwardly stepped portion. The arm is received laterally adjacent to the inwardly stepped portion of the equalizer bracket.