A drive unit for actuating a brake device by a driver's operation, when a vehicle is parked or stopped, is disposed independently in a trailing arm for each of right and left rear wheels. Thus, the drive unit for actuating the brake device via a wire when the vehicle is stopped or parked can be loaded, even if the space of the vehicle is tight. That is, the drive unit for actuating the brake device via the wire when the vehicle is stopped or parked can be loaded, regardless of the space of the vehicle.

The present invention provides embodiments of modified upper and lower control arms for attachment to the steering knuckle that came with the vehicle, or for attachment to a modified steering knuckle of an embodiment of the invention, such that the steering knuckle, and in particular the wheel hub opening of the steering knuckle, are located at positions that are closer to the front of the vehicle than the positions provided by the control arms that came with the vehicle. The forward position of the wheel hub relative to the position provided by the factory or stock control arms moves the wheel and tire forward by the same distance, thereby allowing much larger wheels and tires to be mounted on the vehicle which do not rub against or interfere with the wheel well, fender or body mount, thereby increasing the approach angle of the vehicle for use in off-road climbing.

An axle tie rod adapted to be secured to an axle tube of a utility vehicle includes a connecting element and at least one link element, wherein the connecting element has a first connecting section in which a welded connection with the link element can be produced, wherein the connecting element has a second connecting section in which a welded connection with an axle tube can be produced, and wherein the second connecting section is configured to engage around the axle tube.

A bi-metallic component including a tubular stud member extending from an open first end to an open second end, and a cast member cast around the open second end of the tubular stud member is provided. The cast member is formed from first material, such as an aluminum alloy; and the tubular stud member is formed from a second material, such as steel. The tubular stub member has an interior surface which sealingly receives a removable core member for preventing molten first material from flowing through the stub member between the open ends thereof during casting of the cast member around the second end. The bi-metallic component can be used in a variety of automotive applications, for example in a cradle, frame, twist axle, control arm, door pillar, instrument panel support, or bumper assembly.

The disclosure relates to an elongate link arm member of a support link arm. A ball joint socket is disposed on a first longitudinal and of the link arm member. The link arm member in a sheet-metal shell construction mode is formed from sheet metal and has a cavity portion. The ball joint socket is a forging or casting from metal and possesses a fastening appendage which is configured in a materially integral manner so as to be in one piece with said ball joint socket. The ball joint socket by way of the fastening appendage engages in the cavity portion of the link arm member and is joined to the link arm member.

An all-terrain vehicle includes a frame, a transmission, an axle support, a driving shaft and a rear suspension assembly. The transmission is mounted on the frame. The driving shaft is coupled between the transmission and the axle support. The rear suspension assembly includes left and right rear suspension subassemblies symmetrically arranged at left and right sides of the frame. Each of the left and right rear suspension subassemblies includes an upper control min and a lower control arm, the upper control arm has a first end pivotally coupled to the frame and a second end pivotally coupled to the axle support, the lower control arm has a first end pivotally coupled to the frame and a second end pivotally coupled to the axle support, and a junction of the first end of the upper control arm and the frame is located behind the driving shaft.

The support link arm according to the invention has an elongate link arm member. A ball joint socket is disposed on a first longitudinal and of the link arm member. The link arm member in a sheet-metal shell construction mode is formed from sheet metal and has a cavity portion. The ball joint socket is a forging or casting from metal and possesses a fastening appendage which is configured in a materially integral manner so as to be in one piece with said ball joint socket. The ball joint socket by way of the fastening appendage engages in the cavity portion of the link arm member and is joined to the link arm member.

An apparatus for coupling a trailing arm may include a carrier having defining an open space on one side thereof, a trailing arm, one end of which includes an extension inclined at a predetermined angle and inserted into the space, and an assist arm, an end of which is inserted into the space and positioned on one side of the extension, in which the extension and the end of the assist arm inserted into the space may be integrally coupled to the carrier.

A suspension arm includes an arm body having a longitudinal shape, a wheel-side attachment portion disposed at one end of the arm body, and a vehicle body-side attachment portion disposed at the other end of the arm body, and is mounted near a drive shaft to extend in a lateral direction of a vehicle, the arm body including an overlap portion that overlaps the drive shaft as viewed from a front in a longitudinal direction of a vehicle, a weak portion having lower strength than the overlap portion being provided between the overlap portion and the wheel-side attachment portion, the arm body having a hollow longitudinal shape, and portions on both sides of the weak portion being quenched by high frequency heating so as to have high strength, such that the weak portion is partially provided at an intermediate position between the overlap portion and the wheel-side attachment portion.

A suspension arm has an elongated shape. The suspension arm is shaped such that a line defining an outer shape of the suspension arm does not coincide with a line of force transmission, but a line extending through a shearing center point of each of a plurality of cross sections of the suspension arm coincides with the line of force transmission.