A suspension system for a rear axle of a vehicle provided with a frame equipped with at least two side members, the suspension system connecting the axle to said side members and comprising a left side and a right side, each comprising an axle-holder assembly, a bellows, a leaf spring, first and second bars, and a torsion bar interposed between said left and right sides. The aforementioned elements of the suspension system being arranged to provide a functional layout having reduced costs and overall dimensions.

A vehicle suspension arrangement includes a suspension slider assembly including first and second laterally spaced longitudinal frame members configured to be slidably coupled to a first vehicle frame member, first and second gusset members fixed to the first and second longitudinal frame members and each including a relief, a first lateral frame member extending between the first and second longitudinal frame members, the first lateral frame member having ends received within the reliefs, an axle member configured to support a pair of wheel assemblies, and a suspension assembly configured to support the suspension slider assembly from the axle member, the suspension assembly including a spring member positioned between the suspension slider assembly and the axle member.

A leaf spring suspension is provided with an air spring to absorb a percentage of the load.

The invention relates to a first leaf spring bracket having a longitudinal axis and a transverse axis which is configured to be secured to a vehicle frame and which receives a rear end portion of a leaf spring so as to allow the leaf spring rear end portion to slide longitudinally relative to the first leaf spring bracket, characterized in that the first leaf spring bracket comprises an insert comprising an insert pad extending transversally and two perpendicular arms, the insert comprising a bottom surface and a top surface and being made of austempered ductile iron, and a bracket comprising a bracket pad extending transversally and two perpendicular arms, the bracket comprising a bottom surface and a top surface, the bottom surface of the bracket pad being configured to receive the top surface of the insert, the bracket being made of spheroidal graphite cast iron.

The invention relates to a first leaf spring bracket having a longitudinal axis and a transverse axis which is configured to be secured to a vehicle frame and which receives a rear end portion of a leaf spring so as to allow the leaf spring rear end portion to slide longitudinally relative to the first leaf spring bracket, characterized in that the first leaf spring bracket comprises an insert comprising an insert pad extending transversally and two perpendicular arms, the insert comprising a bottom surface and a top surface and being made of austempered ductile iron, and a bracket comprising a bracket pad extending transversally and two perpendicular arms, the bracket comprising a bottom surface and a top surface, the bottom surface of the bracket pad being configured to receive the top surface of the insert, the bracket being made of spheroidal graphite cast iron.

A tandem mechanical spring axle/suspension system for heavy-duty vehicles includes a tandem assembly that comprises a front beam of a suspension assembly of a front axle/suspension system, a rear beam of a suspension assembly of a rear axle suspension system, and a mechanical spring. The mechanical spring operatively engages the front beam and the rear beam and extends longitudinally therebetween, as well as operatively engages a main member of the vehicle frame.

A leaf spring bearing for a vehicle with a transverse leaf spring. The leaf spring bearing includes an upper bearing block and a lower bearing block between which a portion of the transverse leaf spring can be interposed. Each bearing block is formed at least partially of elastic material and comprises an upper support surface and a lower support surface. At least one of the upper and lower bearing blocks has a bearing core and an insert positioned in the elastic material between the upper and lower support surfaces so as to define three layers of the elastic material within the at least one bearing block. At least one of the upper and lower bearing blocks has two support plates arranged either outside the elastic material or at least partially surrounded by the elastic material in the area of the upper and lower support surfaces of the bearing block.

A leaf spring bearing for a vehicle with a transverse leaf spring. The leaf spring bearing includes an upper bearing block and a lower bearing block between which a portion of the transverse leaf spring can be interposed. Each bearing block is formed at least partially of elastic material and comprises an upper support surface and a lower support surface. At least one of the upper and lower bearing blocks has a bearing core and an insert positioned in the elastic material between the upper and lower support surfaces so as to define three layers of the elastic material within the at least one bearing block. At least one of the upper and lower bearing blocks has two support plates arranged either outside the elastic material or at least partially surrounded by the elastic material in the area of the upper and lower support surfaces of the bearing block.

Vehicle comprising a hull and motorised aquatic propulsion members and motorised land propulsion members, this vehicle being able to move between a navigation position and a land transport position in which it rests on sets of caterpillar tracks. Each set of caterpillar tracks (1) is equipped with an even number of rollers (7) so as to define a set of adjacent roller pairs (71, 72). The rollers (71, 72) of each pair are connected to the chassis (2) by suspension means comprising a set (12) of at least two superposed curved elastic leaves made of a fibre-reinforced thermosetting resin, namely an upper leaf (131) and a lower leaf (132), the set being fixed on the one hand to the axles (9) of the rollers (71, 72) at its respective ends and, on the other hand, to the chassis (2) in its central part, and the upper leaf (13i) and the lower leaf (132) of each of the sets of leaves (12) are joined together and covered with a layer of elastomer (14).

Vehicle comprising a hull and motorised aquatic propulsion members and motorised land propulsion members, this vehicle being able to move between a navigation position and a land transport position in which it rests on sets of caterpillar tracks. Each set of caterpillar tracks (1) is equipped with an even number of rollers (7) so as to define a set of adjacent roller pairs (71, 72). The rollers (71, 72) of each pair are connected to the chassis (2) by suspension means comprising a set (12) of at least two superposed curved elastic leaves made of a fibre-reinforced thermosetting resin, namely an upper leaf (131) and a lower leaf (132), the set being fixed on the one hand to the axles (9) of the rollers (71, 72) at its respective ends and, on the other hand, to the chassis (2) in its central part, and the upper leaf (13i) and the lower leaf (132) of each of the sets of leaves (12) are joined together and covered with a layer of elastomer (14).