Provided is a running device including a frame (11) and a first wheel part (15) and a second wheel part (35) arranged with an appropriate distance therebetween along a running direction (R). The first wheel part (15) includes a first left support arm (17) and a first right support arm (26) arranged on the frame (11) in a manner to be swingable within a plane extending along the running direction (R). The second wheel part (35) includes a second support arm (36) arranged on the frame (11) in a manner to be swingable within a plane perpendicular to the running direction (R). The first left support arm (17) has first left wheels (19, 21) respectively on both sides thereof, and the first right support arm (26) has first right wheels (28, 30) respectively on both sides thereof. The second support arm (36) has a second left wheel (38) and a second right wheel (40) respectively on both sides thereof.

The present invention relates to a forecarriage of a rolling motor vehicle with three or four wheels, comprising: a forecarriage frame (16); at least one pair of front wheels (10′, 10″) kinematically connected to each other and to the forecarriage frame (16) by a kinematic roll mechanism (20) which enables the same to roll in a synchronous and specular manner; a roll block system (100) comprising a rod (110) which directly connects to each other at the two ends thereof by means of ball joints or hinging means equivalent to ball joints (101, 102), two parts of the forecarriage both subject to rolling movements of said two front wheels or said forecarriage frame and a forecarriage part subject to said rolling movements. The roll block system comprises a blocking device (111a, 112a; 130) adapted to block the rotation angle of said rod at the two ends thereof with respect to a rolling plane of said forecarriage.

The present invention relates to a forecarriage of a rolling motor vehicle with three or four wheels, comprising: a forecarriage frame (16); at least one pair of front wheels (10′, 10″) kinematically connected to each other and to the forecarriage frame (16) by a kinematic roll mechanism (20) which enables the same to roll in a synchronous and specular manner; a roll block system (100) comprising a rod (110) which directly connects to each other at the two ends thereof by means of ball joints or hinging means equivalent to ball joints (101, 102), two parts of the forecarriage both subject to rolling movements of said two front wheels or said forecarriage frame and a forecarriage part subject to said rolling movements. The roll block system comprises a blocking device (111a, 112a; 130) adapted to block the rotation angle of said rod at the two ends thereof with respect to a rolling plane of said forecarriage.

Systems and apparatuses include a tag axle system including an axle assembly, a linkage coupling the axle assembly to a vehicle chassis, and a hydraulic cylinder coupled between the vehicle chassis and the axle assembly. The hydraulic cylinder actuates the axle assembly between a raised position and a lowered position, and acts as a spring damper suspension component.

Systems and apparatuses include a tag axle system including an axle assembly, a linkage coupling the axle assembly to a vehicle chassis, and a hydraulic cylinder coupled between the vehicle chassis and the axle assembly. The hydraulic cylinder actuates the axle assembly between a raised position and a lowered position, and acts as a spring damper suspension component.

A vehicle suspension arrangement includes a mounting bracket, a trailing arm, an air spring assembly configured to bias a second end of the trailing arm from a vehicle frame member, an axle assembly couple to the trailing arm, and a trailing arm connection assembly that includes a connector having a first portion received within an aperture of the mounting bracket, and a second portion extending outwardly from the first portion and including an aperture, a bushing member received within a first end of the trailing arm, a pin member received within the bushing member and including a first aperture, and a first mechanical fastener received within the first aperture of the pin member and within the aperture of the second portion of the first connector, thereby pivotably securing the trailing arm to the mounting bracket.

A vehicle suspension arrangement includes a mounting bracket, a trailing arm, an air spring assembly configured to bias a second end of the trailing arm from a vehicle frame member, an axle assembly couple to the trailing arm, and a trailing arm connection assembly that includes a connector having a first portion received within an aperture of the mounting bracket, and a second portion extending outwardly from the first portion and including an aperture, a bushing member received within a first end of the trailing arm, a pin member received within the bushing member and including a first aperture, and a first mechanical fastener received within the first aperture of the pin member and within the aperture of the second portion of the first connector, thereby pivotably securing the trailing arm to the mounting bracket.

A three-row wheel vehicle having front, center and rear wheels has laterally spaced front pivot links each pivotably connected at a middle to a vehicle body, laterally spaced swing arms each swingably connected to a front end of the front pivot link and rotatably supports the front wheel at a lower end, laterally spaced rear pivot links each pivotably connected to the vehicle body at a middle and rotatably supports the rear wheel at a rear end, laterally spaced force transmission mechanisms each configured to convert a rearward force transmitted from the front wheel to the swing arm into an upward force and transmit the upward force to the front pivot link on a front side of the middle, and laterally spaced connecting links each pivotably attached to a rear end of the front pivot link and a front end of the rear pivot link.

A three-row wheel vehicle having front, center and rear wheels has laterally spaced leading arms each pivotably connected to a vehicle body, laterally spaced swing arms each connected to the front end of the leading arm swingably in the front and rear direction and rotatably supporting the front wheel at the lower end, and laterally spaced connecting links each attached at one end to the swing arm pivotably around an axis and attached at the other end to the vehicle body pivotably around another axis; heights of the axes are different when the vehicle is on a horizontal flat traveling road; and each connecting link is arranged to apply a reaction force including an upward component to the swing arm when a rearward force acts from the front wheel to the one end via the swing arm.

A vehicle includes a trailer assembly supported by a rear chassis system. The rear chassis system includes a chassis frame having at least two longitudinal chassis members. The rear chassis system includes a rear suspension frame coupled to a back rear axle. The rear suspension frame includes a bearing head with a bearing aperture. Equalizing beams extend between the front rear axle and the back rear axle, with each equalizing beam including a bushing aperture. The rear chassis system also includes a plurality of suspension mounts. To minimize relative translations experienced by the suspension mounts during operation of the vehicle, opposing end sections of a spindle cross member, along with the bearing aperture and the bushing aperture are coaxially aligned. Likewise, the opposing spindle end sections, the bearing aperture, the bushing aperture, and a top plate of each suspension mount are coplanar.