A vehicular torsion beam axle includes a torsion beam, a pair of trailing arms connected to both ends, respectively, of the torsion beam; a pair of mounting pipes connected to the pair of trailing arms, respectively, each of the mounting pipes including a separation prevention protrusion, and a bushing press-inserted into each of the mounting pipes. Each of the bushings has a separation prevention groove in which the separation prevention protrusion of one of the mounting pipes is engaged.

Disclosed herein is an axle cartridge member for receiving a pair of torsion stub axles. The axle cartridge member includes a pair of laterally opposed bases, with each base defining a cavity therein for receiving an elongated stub housing of the torsion stub axles. The axle cartridge member also includes a pair of axle mounts that each includes a lateral opening extending into the cavity defined in the respective base, and an arch including a crossbar extending at a height above the bases wherein the arch further includes a portion that extends upward from each of the bases at an angle and meets the crossbar that extends generally horizontally between the portions of the arch.

A connecting arrangement for a stabilizer of a vehicle, with at least one lever that extends transversely to a longitudinal direction. The lever has a bearing eye provided with a non-circular inner circumferential contour. A torsion-bar spring with a rotation axis extends in the longitudinal direction. The torsion-bar spring has an outer circumferential contour, at least at one end, that matches the inner circumferential contour of the bearing eye and which fits into the bearing eye. The wall of the bearing eye is cut through by at least one slit extending in the longitudinal direction, by which two opposite wall sections of the wall are separated from one another. The two wall sections are pressed against the non-circular outer circumferential contour of the torsion-bar spring by at least one releasable clamping element.

The twist axle assembly includes a pair of spaced apart trailing arms and a twist beam of which extends in a first direction between the trailing arms. The twist beam includes a pair of end portions and a middle portion. The twist beam further has a pair of side walls and at least one additional wall that extends between the side walls. The side walls in the middle portion are generally parallel with the side walls of the end portions. The twist beam is generally hour-glass shaped with the middle portion having a first width and the end portions have a greater second width. The twist beam also tapers from the first width of the middle portion to the second widths of the end portions for gradually increasing a torsional stiffness from the middle portion to the end portions.

A vehicle has steering and drive wheels supported by legs articulated to the structure of the vehicle. Each leg is rotatably mounted on a main support around a transverse axis. The main support is rotatably mounted about the transverse axis on a base structure, which is connected to the structure of the vehicle. An actuator device is operatively interposed between the main support and the base support to adjust the position of the main support around the transverse axis, and consequently the height of the vehicle from the ground. A hub-bearing support carrying the wheel hub is rotatably mounted around a wheel steering axis on an auxiliary camber adjustment support. The latter is carried around a camber adjustment axis on a further auxiliary caster adjustment support. The latter is carried by the leg around a caster adjustment axis. The steering of the wheel and the camber adjustment are controlled by respective actuator devices. The caster adjustment is automatically controlled as the position of the leg changes around the transverse axis.

A stabilizer bar assembly may include left and right bars, an outer cylinder member connected to one of the left bar and the right bar, an inner cylinder member provided inside the outer cylinder member to enable relative rotation with the outer cylinder member, and connected to the other one of the left bar and the right bar, and a torsion spring providing rotational stiffness to the inner cylinder member and the outer cylinder, which rotate relatively.

A vehicular torsion beam axle includes a torsion beam, a pair of trailing arms connected to both ends, respectively, of the torsion beam; a pair of mounting pipes connected to the pair of trailing arms, respectively, each of the mounting pipes including a separation prevention protrusion, and a bushing press-inserted into each of the mounting pipes. Each of the bushings has a separation prevention groove in which the separation prevention protrusion of one of the mounting pipes is engaged.

A suspension system for supporting a ground engaging member relative to a frame is provided. The suspension system includes a torsion axle assembly including an arm, an axle coupled to the ground engaging member and connected to the arm, a shaft connected to the arm and a tube that is connected to the frame. The tube is configured such that at least a portion of the shaft is received in the tube and supported by the tube for rotation relative to the tube and the frame. A lockout assembly includes a coupling mechanism that is selectively operable to fix the shaft against rotational movement with respect to the tube.

An embodiment suspension system for a vehicle includes a rocker arm housing coupled to a first end of a lower arm through which a rotation axis passes, a rocker arm having a first end surrounded by the rocker arm housing and a second end disposed toward a center of the rocker arm housing, the rocker arm being rotatable together with the lower arm about the rotation axis, a torsion bar having a first end connected to the second end of the rocker arm and a second end extending along the rotation axis and then coupled to a vehicle body connection member, and a contact protrusion disposed on either the rocker arm housing or the rocker arm, the contact protrusion being configured to come into contact with the other of the rocker arm and the rocker arm housing in accordance with a rotation angle of the rocker arm housing.

An embodiment suspension system for a vehicle includes a rocker arm housing coupled to a first end of a lower arm through which a rotation axis passes, a rocker arm having a first end surrounded by the rocker arm housing and a second end disposed toward a center of the rocker arm housing, the rocker arm being rotatable together with the lower arm about the rotation axis, a torsion bar having a first end connected to the second end of the rocker arm and a second end extending along the rotation axis and then coupled to a vehicle body connection member, and a contact protrusion disposed on either the rocker arm housing or the rocker arm, the contact protrusion being configured to come into contact with the other of the rocker arm and the rocker arm housing in accordance with a rotation angle of the rocker arm housing.